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/ieee80211_radiotap.h>
45 #include <net/mac80211.h>
47 #include <asm/div64.h>
49 #include "iwl-3945-core.h"
51 #include "iwl-helpers.h"
53 #ifdef CONFIG_IWL3945_DEBUG
54 u32 iwl3945_debug_level
;
57 static int iwl3945_tx_queue_update_write_ptr(struct iwl3945_priv
*priv
,
58 struct iwl3945_tx_queue
*txq
);
60 /******************************************************************************
64 ******************************************************************************/
66 /* module parameters */
67 static int iwl3945_param_disable_hw_scan
; /* def: 0 = use 3945's h/w scan */
68 static int iwl3945_param_debug
; /* def: 0 = minimal debug log messages */
69 static int iwl3945_param_disable
; /* def: 0 = enable radio */
70 static int iwl3945_param_antenna
; /* def: 0 = both antennas (use diversity) */
71 int iwl3945_param_hwcrypto
; /* def: 0 = use software encryption */
72 static int iwl3945_param_qos_enable
= 1; /* def: 1 = use quality of service */
73 int iwl3945_param_queues_num
= IWL39_MAX_NUM_QUEUES
; /* def: 8 Tx queues */
76 * module name, copyright, version, etc.
77 * NOTE: DRV_NAME is defined in iwlwifi.h for use by iwl-debug.h and printk
80 #define DRV_DESCRIPTION \
81 "Intel(R) PRO/Wireless 3945ABG/BG Network Connection driver for Linux"
83 #ifdef CONFIG_IWL3945_DEBUG
89 #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT
95 #define IWLWIFI_VERSION "1.2.26k" VD VS
96 #define DRV_COPYRIGHT "Copyright(c) 2003-2008 Intel Corporation"
97 #define DRV_VERSION IWLWIFI_VERSION
100 MODULE_DESCRIPTION(DRV_DESCRIPTION
);
101 MODULE_VERSION(DRV_VERSION
);
102 MODULE_AUTHOR(DRV_COPYRIGHT
);
103 MODULE_LICENSE("GPL");
105 static const struct ieee80211_supported_band
*iwl3945_get_band(
106 struct iwl3945_priv
*priv
, enum ieee80211_band band
)
108 return priv
->hw
->wiphy
->bands
[band
];
111 static int iwl3945_is_empty_essid(const char *essid
, int essid_len
)
113 /* Single white space is for Linksys APs */
114 if (essid_len
== 1 && essid
[0] == ' ')
117 /* Otherwise, if the entire essid is 0, we assume it is hidden */
120 if (essid
[essid_len
] != '\0')
127 static const char *iwl3945_escape_essid(const char *essid
, u8 essid_len
)
129 static char escaped
[IW_ESSID_MAX_SIZE
* 2 + 1];
130 const char *s
= essid
;
133 if (iwl3945_is_empty_essid(essid
, essid_len
)) {
134 memcpy(escaped
, "<hidden>", sizeof("<hidden>"));
138 essid_len
= min(essid_len
, (u8
) IW_ESSID_MAX_SIZE
);
139 while (essid_len
--) {
151 /*************** DMA-QUEUE-GENERAL-FUNCTIONS *****
154 * Theory of operation
156 * A Tx or Rx queue resides in host DRAM, and is comprised of a circular buffer
157 * of buffer descriptors, each of which points to one or more data buffers for
158 * the device to read from or fill. Driver and device exchange status of each
159 * queue via "read" and "write" pointers. Driver keeps minimum of 2 empty
160 * entries in each circular buffer, to protect against confusing empty and full
163 * The device reads or writes the data in the queues via the device's several
164 * DMA/FIFO channels. Each queue is mapped to a single DMA channel.
166 * For Tx queue, there are low mark and high mark limits. If, after queuing
167 * the packet for Tx, free space become < low mark, Tx queue stopped. When
168 * reclaiming packets (on 'tx done IRQ), if free space become > high mark,
171 * The 3945 operates with six queues: One receive queue, one transmit queue
172 * (#4) for sending commands to the device firmware, and four transmit queues
173 * (#0-3) for data tx via EDCA. An additional 2 HCCA queues are unused.
174 ***************************************************/
176 int iwl3945_queue_space(const struct iwl3945_queue
*q
)
178 int s
= q
->read_ptr
- q
->write_ptr
;
180 if (q
->read_ptr
> q
->write_ptr
)
185 /* keep some reserve to not confuse empty and full situations */
192 int iwl3945_x2_queue_used(const struct iwl3945_queue
*q
, int i
)
194 return q
->write_ptr
> q
->read_ptr
?
195 (i
>= q
->read_ptr
&& i
< q
->write_ptr
) :
196 !(i
< q
->read_ptr
&& i
>= q
->write_ptr
);
200 static inline u8
get_cmd_index(struct iwl3945_queue
*q
, u32 index
, int is_huge
)
202 /* This is for scan command, the big buffer at end of command array */
204 return q
->n_window
; /* must be power of 2 */
206 /* Otherwise, use normal size buffers */
207 return index
& (q
->n_window
- 1);
211 * iwl3945_queue_init - Initialize queue's high/low-water and read/write indexes
213 static int iwl3945_queue_init(struct iwl3945_priv
*priv
, struct iwl3945_queue
*q
,
214 int count
, int slots_num
, u32 id
)
217 q
->n_window
= slots_num
;
220 /* count must be power-of-two size, otherwise iwl_queue_inc_wrap
221 * and iwl_queue_dec_wrap are broken. */
222 BUG_ON(!is_power_of_2(count
));
224 /* slots_num must be power-of-two size, otherwise
225 * get_cmd_index is broken. */
226 BUG_ON(!is_power_of_2(slots_num
));
228 q
->low_mark
= q
->n_window
/ 4;
232 q
->high_mark
= q
->n_window
/ 8;
233 if (q
->high_mark
< 2)
236 q
->write_ptr
= q
->read_ptr
= 0;
242 * iwl3945_tx_queue_alloc - Alloc driver data and TFD CB for one Tx/cmd queue
244 static int iwl3945_tx_queue_alloc(struct iwl3945_priv
*priv
,
245 struct iwl3945_tx_queue
*txq
, u32 id
)
247 struct pci_dev
*dev
= priv
->pci_dev
;
249 /* Driver private data, only for Tx (not command) queues,
250 * not shared with device. */
251 if (id
!= IWL_CMD_QUEUE_NUM
) {
252 txq
->txb
= kmalloc(sizeof(txq
->txb
[0]) *
253 TFD_QUEUE_SIZE_MAX
, GFP_KERNEL
);
255 IWL_ERROR("kmalloc for auxiliary BD "
256 "structures failed\n");
262 /* Circular buffer of transmit frame descriptors (TFDs),
263 * shared with device */
264 txq
->bd
= pci_alloc_consistent(dev
,
265 sizeof(txq
->bd
[0]) * TFD_QUEUE_SIZE_MAX
,
269 IWL_ERROR("pci_alloc_consistent(%zd) failed\n",
270 sizeof(txq
->bd
[0]) * TFD_QUEUE_SIZE_MAX
);
287 * iwl3945_tx_queue_init - Allocate and initialize one tx/cmd queue
289 int iwl3945_tx_queue_init(struct iwl3945_priv
*priv
,
290 struct iwl3945_tx_queue
*txq
, int slots_num
, u32 txq_id
)
292 struct pci_dev
*dev
= priv
->pci_dev
;
297 * Alloc buffer array for commands (Tx or other types of commands).
298 * For the command queue (#4), allocate command space + one big
299 * command for scan, since scan command is very huge; the system will
300 * not have two scans at the same time, so only one is needed.
301 * For data Tx queues (all other queues), no super-size command
304 len
= sizeof(struct iwl3945_cmd
) * slots_num
;
305 if (txq_id
== IWL_CMD_QUEUE_NUM
)
306 len
+= IWL_MAX_SCAN_SIZE
;
307 txq
->cmd
= pci_alloc_consistent(dev
, len
, &txq
->dma_addr_cmd
);
311 /* Alloc driver data array and TFD circular buffer */
312 rc
= iwl3945_tx_queue_alloc(priv
, txq
, txq_id
);
314 pci_free_consistent(dev
, len
, txq
->cmd
, txq
->dma_addr_cmd
);
318 txq
->need_update
= 0;
320 /* TFD_QUEUE_SIZE_MAX must be power-of-two size, otherwise
321 * iwl_queue_inc_wrap and iwl_queue_dec_wrap are broken. */
322 BUILD_BUG_ON(TFD_QUEUE_SIZE_MAX
& (TFD_QUEUE_SIZE_MAX
- 1));
324 /* Initialize queue high/low-water, head/tail indexes */
325 iwl3945_queue_init(priv
, &txq
->q
, TFD_QUEUE_SIZE_MAX
, slots_num
, txq_id
);
327 /* Tell device where to find queue, enable DMA channel. */
328 iwl3945_hw_tx_queue_init(priv
, txq
);
334 * iwl3945_tx_queue_free - Deallocate DMA queue.
335 * @txq: Transmit queue to deallocate.
337 * Empty queue by removing and destroying all BD's.
339 * 0-fill, but do not free "txq" descriptor structure.
341 void iwl3945_tx_queue_free(struct iwl3945_priv
*priv
, struct iwl3945_tx_queue
*txq
)
343 struct iwl3945_queue
*q
= &txq
->q
;
344 struct pci_dev
*dev
= priv
->pci_dev
;
350 /* first, empty all BD's */
351 for (; q
->write_ptr
!= q
->read_ptr
;
352 q
->read_ptr
= iwl_queue_inc_wrap(q
->read_ptr
, q
->n_bd
))
353 iwl3945_hw_txq_free_tfd(priv
, txq
);
355 len
= sizeof(struct iwl3945_cmd
) * q
->n_window
;
356 if (q
->id
== IWL_CMD_QUEUE_NUM
)
357 len
+= IWL_MAX_SCAN_SIZE
;
359 /* De-alloc array of command/tx buffers */
360 pci_free_consistent(dev
, len
, txq
->cmd
, txq
->dma_addr_cmd
);
362 /* De-alloc circular buffer of TFDs */
364 pci_free_consistent(dev
, sizeof(struct iwl3945_tfd_frame
) *
365 txq
->q
.n_bd
, txq
->bd
, txq
->q
.dma_addr
);
367 /* De-alloc array of per-TFD driver data */
373 /* 0-fill queue descriptor structure */
374 memset(txq
, 0, sizeof(*txq
));
377 const u8 iwl3945_broadcast_addr
[ETH_ALEN
] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
379 /*************** STATION TABLE MANAGEMENT ****
380 * mac80211 should be examined to determine if sta_info is duplicating
381 * the functionality provided here
384 /**************************************************************/
385 #if 0 /* temporary disable till we add real remove station */
387 * iwl3945_remove_station - Remove driver's knowledge of station.
389 * NOTE: This does not remove station from device's station table.
391 static u8
iwl3945_remove_station(struct iwl3945_priv
*priv
, const u8
*addr
, int is_ap
)
393 int index
= IWL_INVALID_STATION
;
397 spin_lock_irqsave(&priv
->sta_lock
, flags
);
401 else if (is_broadcast_ether_addr(addr
))
402 index
= priv
->hw_setting
.bcast_sta_id
;
404 for (i
= IWL_STA_ID
; i
< priv
->hw_setting
.max_stations
; i
++)
405 if (priv
->stations
[i
].used
&&
406 !compare_ether_addr(priv
->stations
[i
].sta
.sta
.addr
,
412 if (unlikely(index
== IWL_INVALID_STATION
))
415 if (priv
->stations
[index
].used
) {
416 priv
->stations
[index
].used
= 0;
417 priv
->num_stations
--;
420 BUG_ON(priv
->num_stations
< 0);
423 spin_unlock_irqrestore(&priv
->sta_lock
, flags
);
429 * iwl3945_clear_stations_table - Clear the driver's station table
431 * NOTE: This does not clear or otherwise alter the device's station table.
433 static void iwl3945_clear_stations_table(struct iwl3945_priv
*priv
)
437 spin_lock_irqsave(&priv
->sta_lock
, flags
);
439 priv
->num_stations
= 0;
440 memset(priv
->stations
, 0, sizeof(priv
->stations
));
442 spin_unlock_irqrestore(&priv
->sta_lock
, flags
);
446 * iwl3945_add_station - Add station to station tables in driver and device
448 u8
iwl3945_add_station(struct iwl3945_priv
*priv
, const u8
*addr
, int is_ap
, u8 flags
)
451 int index
= IWL_INVALID_STATION
;
452 struct iwl3945_station_entry
*station
;
453 unsigned long flags_spin
;
454 DECLARE_MAC_BUF(mac
);
457 spin_lock_irqsave(&priv
->sta_lock
, flags_spin
);
460 else if (is_broadcast_ether_addr(addr
))
461 index
= priv
->hw_setting
.bcast_sta_id
;
463 for (i
= IWL_STA_ID
; i
< priv
->hw_setting
.max_stations
; i
++) {
464 if (!compare_ether_addr(priv
->stations
[i
].sta
.sta
.addr
,
470 if (!priv
->stations
[i
].used
&&
471 index
== IWL_INVALID_STATION
)
475 /* These two conditions has the same outcome but keep them separate
476 since they have different meaning */
477 if (unlikely(index
== IWL_INVALID_STATION
)) {
478 spin_unlock_irqrestore(&priv
->sta_lock
, flags_spin
);
482 if (priv
->stations
[index
].used
&&
483 !compare_ether_addr(priv
->stations
[index
].sta
.sta
.addr
, addr
)) {
484 spin_unlock_irqrestore(&priv
->sta_lock
, flags_spin
);
488 IWL_DEBUG_ASSOC("Add STA ID %d: %s\n", index
, print_mac(mac
, addr
));
489 station
= &priv
->stations
[index
];
491 priv
->num_stations
++;
493 /* Set up the REPLY_ADD_STA command to send to device */
494 memset(&station
->sta
, 0, sizeof(struct iwl3945_addsta_cmd
));
495 memcpy(station
->sta
.sta
.addr
, addr
, ETH_ALEN
);
496 station
->sta
.mode
= 0;
497 station
->sta
.sta
.sta_id
= index
;
498 station
->sta
.station_flags
= 0;
500 if (priv
->band
== IEEE80211_BAND_5GHZ
)
501 rate
= IWL_RATE_6M_PLCP
;
503 rate
= IWL_RATE_1M_PLCP
;
505 /* Turn on both antennas for the station... */
506 station
->sta
.rate_n_flags
=
507 iwl3945_hw_set_rate_n_flags(rate
, RATE_MCS_ANT_AB_MSK
);
508 station
->current_rate
.rate_n_flags
=
509 le16_to_cpu(station
->sta
.rate_n_flags
);
511 spin_unlock_irqrestore(&priv
->sta_lock
, flags_spin
);
513 /* Add station to device's station table */
514 iwl3945_send_add_station(priv
, &station
->sta
, flags
);
519 /*************** DRIVER STATUS FUNCTIONS *****/
521 static inline int iwl3945_is_ready(struct iwl3945_priv
*priv
)
523 /* The adapter is 'ready' if READY and GEO_CONFIGURED bits are
524 * set but EXIT_PENDING is not */
525 return test_bit(STATUS_READY
, &priv
->status
) &&
526 test_bit(STATUS_GEO_CONFIGURED
, &priv
->status
) &&
527 !test_bit(STATUS_EXIT_PENDING
, &priv
->status
);
530 static inline int iwl3945_is_alive(struct iwl3945_priv
*priv
)
532 return test_bit(STATUS_ALIVE
, &priv
->status
);
535 static inline int iwl3945_is_init(struct iwl3945_priv
*priv
)
537 return test_bit(STATUS_INIT
, &priv
->status
);
540 static inline int iwl3945_is_rfkill(struct iwl3945_priv
*priv
)
542 return test_bit(STATUS_RF_KILL_HW
, &priv
->status
) ||
543 test_bit(STATUS_RF_KILL_SW
, &priv
->status
);
546 static inline int iwl3945_is_ready_rf(struct iwl3945_priv
*priv
)
549 if (iwl3945_is_rfkill(priv
))
552 return iwl3945_is_ready(priv
);
555 /*************** HOST COMMAND QUEUE FUNCTIONS *****/
557 #define IWL_CMD(x) case x : return #x
559 static const char *get_cmd_string(u8 cmd
)
562 IWL_CMD(REPLY_ALIVE
);
563 IWL_CMD(REPLY_ERROR
);
565 IWL_CMD(REPLY_RXON_ASSOC
);
566 IWL_CMD(REPLY_QOS_PARAM
);
567 IWL_CMD(REPLY_RXON_TIMING
);
568 IWL_CMD(REPLY_ADD_STA
);
569 IWL_CMD(REPLY_REMOVE_STA
);
570 IWL_CMD(REPLY_REMOVE_ALL_STA
);
571 IWL_CMD(REPLY_3945_RX
);
573 IWL_CMD(REPLY_RATE_SCALE
);
574 IWL_CMD(REPLY_LEDS_CMD
);
575 IWL_CMD(REPLY_TX_LINK_QUALITY_CMD
);
576 IWL_CMD(RADAR_NOTIFICATION
);
577 IWL_CMD(REPLY_QUIET_CMD
);
578 IWL_CMD(REPLY_CHANNEL_SWITCH
);
579 IWL_CMD(CHANNEL_SWITCH_NOTIFICATION
);
580 IWL_CMD(REPLY_SPECTRUM_MEASUREMENT_CMD
);
581 IWL_CMD(SPECTRUM_MEASURE_NOTIFICATION
);
582 IWL_CMD(POWER_TABLE_CMD
);
583 IWL_CMD(PM_SLEEP_NOTIFICATION
);
584 IWL_CMD(PM_DEBUG_STATISTIC_NOTIFIC
);
585 IWL_CMD(REPLY_SCAN_CMD
);
586 IWL_CMD(REPLY_SCAN_ABORT_CMD
);
587 IWL_CMD(SCAN_START_NOTIFICATION
);
588 IWL_CMD(SCAN_RESULTS_NOTIFICATION
);
589 IWL_CMD(SCAN_COMPLETE_NOTIFICATION
);
590 IWL_CMD(BEACON_NOTIFICATION
);
591 IWL_CMD(REPLY_TX_BEACON
);
592 IWL_CMD(WHO_IS_AWAKE_NOTIFICATION
);
593 IWL_CMD(QUIET_NOTIFICATION
);
594 IWL_CMD(REPLY_TX_PWR_TABLE_CMD
);
595 IWL_CMD(MEASURE_ABORT_NOTIFICATION
);
596 IWL_CMD(REPLY_BT_CONFIG
);
597 IWL_CMD(REPLY_STATISTICS_CMD
);
598 IWL_CMD(STATISTICS_NOTIFICATION
);
599 IWL_CMD(REPLY_CARD_STATE_CMD
);
600 IWL_CMD(CARD_STATE_NOTIFICATION
);
601 IWL_CMD(MISSED_BEACONS_NOTIFICATION
);
608 #define HOST_COMPLETE_TIMEOUT (HZ / 2)
611 * iwl3945_enqueue_hcmd - enqueue a uCode command
612 * @priv: device private data point
613 * @cmd: a point to the ucode command structure
615 * The function returns < 0 values to indicate the operation is
616 * failed. On success, it turns the index (> 0) of command in the
619 static int iwl3945_enqueue_hcmd(struct iwl3945_priv
*priv
, struct iwl3945_host_cmd
*cmd
)
621 struct iwl3945_tx_queue
*txq
= &priv
->txq
[IWL_CMD_QUEUE_NUM
];
622 struct iwl3945_queue
*q
= &txq
->q
;
623 struct iwl3945_tfd_frame
*tfd
;
625 struct iwl3945_cmd
*out_cmd
;
627 u16 fix_size
= (u16
)(cmd
->len
+ sizeof(out_cmd
->hdr
));
628 dma_addr_t phys_addr
;
634 /* If any of the command structures end up being larger than
635 * the TFD_MAX_PAYLOAD_SIZE, and it sent as a 'small' command then
636 * we will need to increase the size of the TFD entries */
637 BUG_ON((fix_size
> TFD_MAX_PAYLOAD_SIZE
) &&
638 !(cmd
->meta
.flags
& CMD_SIZE_HUGE
));
641 if (iwl3945_is_rfkill(priv
)) {
642 IWL_DEBUG_INFO("Not sending command - RF KILL");
646 if (iwl3945_queue_space(q
) < ((cmd
->meta
.flags
& CMD_ASYNC
) ? 2 : 1)) {
647 IWL_ERROR("No space for Tx\n");
651 spin_lock_irqsave(&priv
->hcmd_lock
, flags
);
653 tfd
= &txq
->bd
[q
->write_ptr
];
654 memset(tfd
, 0, sizeof(*tfd
));
656 control_flags
= (u32
*) tfd
;
658 idx
= get_cmd_index(q
, q
->write_ptr
, cmd
->meta
.flags
& CMD_SIZE_HUGE
);
659 out_cmd
= &txq
->cmd
[idx
];
661 out_cmd
->hdr
.cmd
= cmd
->id
;
662 memcpy(&out_cmd
->meta
, &cmd
->meta
, sizeof(cmd
->meta
));
663 memcpy(&out_cmd
->cmd
.payload
, cmd
->data
, cmd
->len
);
665 /* At this point, the out_cmd now has all of the incoming cmd
668 out_cmd
->hdr
.flags
= 0;
669 out_cmd
->hdr
.sequence
= cpu_to_le16(QUEUE_TO_SEQ(IWL_CMD_QUEUE_NUM
) |
670 INDEX_TO_SEQ(q
->write_ptr
));
671 if (out_cmd
->meta
.flags
& CMD_SIZE_HUGE
)
672 out_cmd
->hdr
.sequence
|= cpu_to_le16(SEQ_HUGE_FRAME
);
674 phys_addr
= txq
->dma_addr_cmd
+ sizeof(txq
->cmd
[0]) * idx
+
675 offsetof(struct iwl3945_cmd
, hdr
);
676 iwl3945_hw_txq_attach_buf_to_tfd(priv
, tfd
, phys_addr
, fix_size
);
678 pad
= U32_PAD(cmd
->len
);
679 count
= TFD_CTL_COUNT_GET(*control_flags
);
680 *control_flags
= TFD_CTL_COUNT_SET(count
) | TFD_CTL_PAD_SET(pad
);
682 IWL_DEBUG_HC("Sending command %s (#%x), seq: 0x%04X, "
683 "%d bytes at %d[%d]:%d\n",
684 get_cmd_string(out_cmd
->hdr
.cmd
),
685 out_cmd
->hdr
.cmd
, le16_to_cpu(out_cmd
->hdr
.sequence
),
686 fix_size
, q
->write_ptr
, idx
, IWL_CMD_QUEUE_NUM
);
688 txq
->need_update
= 1;
690 /* Increment and update queue's write index */
691 q
->write_ptr
= iwl_queue_inc_wrap(q
->write_ptr
, q
->n_bd
);
692 ret
= iwl3945_tx_queue_update_write_ptr(priv
, txq
);
694 spin_unlock_irqrestore(&priv
->hcmd_lock
, flags
);
695 return ret
? ret
: idx
;
698 static int iwl3945_send_cmd_async(struct iwl3945_priv
*priv
, struct iwl3945_host_cmd
*cmd
)
702 BUG_ON(!(cmd
->meta
.flags
& CMD_ASYNC
));
704 /* An asynchronous command can not expect an SKB to be set. */
705 BUG_ON(cmd
->meta
.flags
& CMD_WANT_SKB
);
707 /* An asynchronous command MUST have a callback. */
708 BUG_ON(!cmd
->meta
.u
.callback
);
710 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
713 ret
= iwl3945_enqueue_hcmd(priv
, cmd
);
715 IWL_ERROR("Error sending %s: iwl3945_enqueue_hcmd failed: %d\n",
716 get_cmd_string(cmd
->id
), ret
);
722 static int iwl3945_send_cmd_sync(struct iwl3945_priv
*priv
, struct iwl3945_host_cmd
*cmd
)
727 BUG_ON(cmd
->meta
.flags
& CMD_ASYNC
);
729 /* A synchronous command can not have a callback set. */
730 BUG_ON(cmd
->meta
.u
.callback
!= NULL
);
732 if (test_and_set_bit(STATUS_HCMD_SYNC_ACTIVE
, &priv
->status
)) {
733 IWL_ERROR("Error sending %s: Already sending a host command\n",
734 get_cmd_string(cmd
->id
));
739 set_bit(STATUS_HCMD_ACTIVE
, &priv
->status
);
741 if (cmd
->meta
.flags
& CMD_WANT_SKB
)
742 cmd
->meta
.source
= &cmd
->meta
;
744 cmd_idx
= iwl3945_enqueue_hcmd(priv
, cmd
);
747 IWL_ERROR("Error sending %s: iwl3945_enqueue_hcmd failed: %d\n",
748 get_cmd_string(cmd
->id
), ret
);
752 ret
= wait_event_interruptible_timeout(priv
->wait_command_queue
,
753 !test_bit(STATUS_HCMD_ACTIVE
, &priv
->status
),
754 HOST_COMPLETE_TIMEOUT
);
756 if (test_bit(STATUS_HCMD_ACTIVE
, &priv
->status
)) {
757 IWL_ERROR("Error sending %s: time out after %dms.\n",
758 get_cmd_string(cmd
->id
),
759 jiffies_to_msecs(HOST_COMPLETE_TIMEOUT
));
761 clear_bit(STATUS_HCMD_ACTIVE
, &priv
->status
);
767 if (test_bit(STATUS_RF_KILL_HW
, &priv
->status
)) {
768 IWL_DEBUG_INFO("Command %s aborted: RF KILL Switch\n",
769 get_cmd_string(cmd
->id
));
773 if (test_bit(STATUS_FW_ERROR
, &priv
->status
)) {
774 IWL_DEBUG_INFO("Command %s failed: FW Error\n",
775 get_cmd_string(cmd
->id
));
779 if ((cmd
->meta
.flags
& CMD_WANT_SKB
) && !cmd
->meta
.u
.skb
) {
780 IWL_ERROR("Error: Response NULL in '%s'\n",
781 get_cmd_string(cmd
->id
));
790 if (cmd
->meta
.flags
& CMD_WANT_SKB
) {
791 struct iwl3945_cmd
*qcmd
;
793 /* Cancel the CMD_WANT_SKB flag for the cmd in the
794 * TX cmd queue. Otherwise in case the cmd comes
795 * in later, it will possibly set an invalid
796 * address (cmd->meta.source). */
797 qcmd
= &priv
->txq
[IWL_CMD_QUEUE_NUM
].cmd
[cmd_idx
];
798 qcmd
->meta
.flags
&= ~CMD_WANT_SKB
;
801 if (cmd
->meta
.u
.skb
) {
802 dev_kfree_skb_any(cmd
->meta
.u
.skb
);
803 cmd
->meta
.u
.skb
= NULL
;
806 clear_bit(STATUS_HCMD_SYNC_ACTIVE
, &priv
->status
);
810 int iwl3945_send_cmd(struct iwl3945_priv
*priv
, struct iwl3945_host_cmd
*cmd
)
812 if (cmd
->meta
.flags
& CMD_ASYNC
)
813 return iwl3945_send_cmd_async(priv
, cmd
);
815 return iwl3945_send_cmd_sync(priv
, cmd
);
818 int iwl3945_send_cmd_pdu(struct iwl3945_priv
*priv
, u8 id
, u16 len
, const void *data
)
820 struct iwl3945_host_cmd cmd
= {
826 return iwl3945_send_cmd_sync(priv
, &cmd
);
829 static int __must_check
iwl3945_send_cmd_u32(struct iwl3945_priv
*priv
, u8 id
, u32 val
)
831 struct iwl3945_host_cmd cmd
= {
837 return iwl3945_send_cmd_sync(priv
, &cmd
);
840 int iwl3945_send_statistics_request(struct iwl3945_priv
*priv
)
842 return iwl3945_send_cmd_u32(priv
, REPLY_STATISTICS_CMD
, 0);
846 * iwl3945_set_rxon_channel - Set the phymode and channel values in staging RXON
847 * @band: 2.4 or 5 GHz band
848 * @channel: Any channel valid for the requested band
850 * In addition to setting the staging RXON, priv->band is also set.
852 * NOTE: Does not commit to the hardware; it sets appropriate bit fields
853 * in the staging RXON flag structure based on the band
855 static int iwl3945_set_rxon_channel(struct iwl3945_priv
*priv
,
856 enum ieee80211_band band
,
859 if (!iwl3945_get_channel_info(priv
, band
, channel
)) {
860 IWL_DEBUG_INFO("Could not set channel to %d [%d]\n",
865 if ((le16_to_cpu(priv
->staging_rxon
.channel
) == channel
) &&
866 (priv
->band
== band
))
869 priv
->staging_rxon
.channel
= cpu_to_le16(channel
);
870 if (band
== IEEE80211_BAND_5GHZ
)
871 priv
->staging_rxon
.flags
&= ~RXON_FLG_BAND_24G_MSK
;
873 priv
->staging_rxon
.flags
|= RXON_FLG_BAND_24G_MSK
;
877 IWL_DEBUG_INFO("Staging channel set to %d [%d]\n", channel
, band
);
883 * iwl3945_check_rxon_cmd - validate RXON structure is valid
885 * NOTE: This is really only useful during development and can eventually
886 * be #ifdef'd out once the driver is stable and folks aren't actively
889 static int iwl3945_check_rxon_cmd(struct iwl3945_rxon_cmd
*rxon
)
894 if (rxon
->flags
& RXON_FLG_BAND_24G_MSK
) {
895 error
|= le32_to_cpu(rxon
->flags
&
896 (RXON_FLG_TGJ_NARROW_BAND_MSK
|
897 RXON_FLG_RADAR_DETECT_MSK
));
899 IWL_WARNING("check 24G fields %d | %d\n",
902 error
|= (rxon
->flags
& RXON_FLG_SHORT_SLOT_MSK
) ?
903 0 : le32_to_cpu(RXON_FLG_SHORT_SLOT_MSK
);
905 IWL_WARNING("check 52 fields %d | %d\n",
907 error
|= le32_to_cpu(rxon
->flags
& RXON_FLG_CCK_MSK
);
909 IWL_WARNING("check 52 CCK %d | %d\n",
912 error
|= (rxon
->node_addr
[0] | rxon
->bssid_addr
[0]) & 0x1;
914 IWL_WARNING("check mac addr %d | %d\n", counter
++, error
);
916 /* make sure basic rates 6Mbps and 1Mbps are supported */
917 error
|= (((rxon
->ofdm_basic_rates
& IWL_RATE_6M_MASK
) == 0) &&
918 ((rxon
->cck_basic_rates
& IWL_RATE_1M_MASK
) == 0));
920 IWL_WARNING("check basic rate %d | %d\n", counter
++, error
);
922 error
|= (le16_to_cpu(rxon
->assoc_id
) > 2007);
924 IWL_WARNING("check assoc id %d | %d\n", counter
++, error
);
926 error
|= ((rxon
->flags
& (RXON_FLG_CCK_MSK
| RXON_FLG_SHORT_SLOT_MSK
))
927 == (RXON_FLG_CCK_MSK
| RXON_FLG_SHORT_SLOT_MSK
));
929 IWL_WARNING("check CCK and short slot %d | %d\n",
932 error
|= ((rxon
->flags
& (RXON_FLG_CCK_MSK
| RXON_FLG_AUTO_DETECT_MSK
))
933 == (RXON_FLG_CCK_MSK
| RXON_FLG_AUTO_DETECT_MSK
));
935 IWL_WARNING("check CCK & auto detect %d | %d\n",
938 error
|= ((rxon
->flags
& (RXON_FLG_AUTO_DETECT_MSK
|
939 RXON_FLG_TGG_PROTECT_MSK
)) == RXON_FLG_TGG_PROTECT_MSK
);
941 IWL_WARNING("check TGG and auto detect %d | %d\n",
944 if ((rxon
->flags
& RXON_FLG_DIS_DIV_MSK
))
945 error
|= ((rxon
->flags
& (RXON_FLG_ANT_B_MSK
|
946 RXON_FLG_ANT_A_MSK
)) == 0);
948 IWL_WARNING("check antenna %d %d\n", counter
++, error
);
951 IWL_WARNING("Tuning to channel %d\n",
952 le16_to_cpu(rxon
->channel
));
955 IWL_ERROR("Not a valid iwl3945_rxon_assoc_cmd field values\n");
962 * iwl3945_full_rxon_required - check if full RXON (vs RXON_ASSOC) cmd is needed
963 * @priv: staging_rxon is compared to active_rxon
965 * If the RXON structure is changing enough to require a new tune,
966 * or is clearing the RXON_FILTER_ASSOC_MSK, then return 1 to indicate that
967 * a new tune (full RXON command, rather than RXON_ASSOC cmd) is required.
969 static int iwl3945_full_rxon_required(struct iwl3945_priv
*priv
)
972 /* These items are only settable from the full RXON command */
973 if (!(priv
->active_rxon
.filter_flags
& RXON_FILTER_ASSOC_MSK
) ||
974 compare_ether_addr(priv
->staging_rxon
.bssid_addr
,
975 priv
->active_rxon
.bssid_addr
) ||
976 compare_ether_addr(priv
->staging_rxon
.node_addr
,
977 priv
->active_rxon
.node_addr
) ||
978 compare_ether_addr(priv
->staging_rxon
.wlap_bssid_addr
,
979 priv
->active_rxon
.wlap_bssid_addr
) ||
980 (priv
->staging_rxon
.dev_type
!= priv
->active_rxon
.dev_type
) ||
981 (priv
->staging_rxon
.channel
!= priv
->active_rxon
.channel
) ||
982 (priv
->staging_rxon
.air_propagation
!=
983 priv
->active_rxon
.air_propagation
) ||
984 (priv
->staging_rxon
.assoc_id
!= priv
->active_rxon
.assoc_id
))
987 /* flags, filter_flags, ofdm_basic_rates, and cck_basic_rates can
988 * be updated with the RXON_ASSOC command -- however only some
989 * flag transitions are allowed using RXON_ASSOC */
991 /* Check if we are not switching bands */
992 if ((priv
->staging_rxon
.flags
& RXON_FLG_BAND_24G_MSK
) !=
993 (priv
->active_rxon
.flags
& RXON_FLG_BAND_24G_MSK
))
996 /* Check if we are switching association toggle */
997 if ((priv
->staging_rxon
.filter_flags
& RXON_FILTER_ASSOC_MSK
) !=
998 (priv
->active_rxon
.filter_flags
& RXON_FILTER_ASSOC_MSK
))
1004 static int iwl3945_send_rxon_assoc(struct iwl3945_priv
*priv
)
1007 struct iwl3945_rx_packet
*res
= NULL
;
1008 struct iwl3945_rxon_assoc_cmd rxon_assoc
;
1009 struct iwl3945_host_cmd cmd
= {
1010 .id
= REPLY_RXON_ASSOC
,
1011 .len
= sizeof(rxon_assoc
),
1012 .meta
.flags
= CMD_WANT_SKB
,
1013 .data
= &rxon_assoc
,
1015 const struct iwl3945_rxon_cmd
*rxon1
= &priv
->staging_rxon
;
1016 const struct iwl3945_rxon_cmd
*rxon2
= &priv
->active_rxon
;
1018 if ((rxon1
->flags
== rxon2
->flags
) &&
1019 (rxon1
->filter_flags
== rxon2
->filter_flags
) &&
1020 (rxon1
->cck_basic_rates
== rxon2
->cck_basic_rates
) &&
1021 (rxon1
->ofdm_basic_rates
== rxon2
->ofdm_basic_rates
)) {
1022 IWL_DEBUG_INFO("Using current RXON_ASSOC. Not resending.\n");
1026 rxon_assoc
.flags
= priv
->staging_rxon
.flags
;
1027 rxon_assoc
.filter_flags
= priv
->staging_rxon
.filter_flags
;
1028 rxon_assoc
.ofdm_basic_rates
= priv
->staging_rxon
.ofdm_basic_rates
;
1029 rxon_assoc
.cck_basic_rates
= priv
->staging_rxon
.cck_basic_rates
;
1030 rxon_assoc
.reserved
= 0;
1032 rc
= iwl3945_send_cmd_sync(priv
, &cmd
);
1036 res
= (struct iwl3945_rx_packet
*)cmd
.meta
.u
.skb
->data
;
1037 if (res
->hdr
.flags
& IWL_CMD_FAILED_MSK
) {
1038 IWL_ERROR("Bad return from REPLY_RXON_ASSOC command\n");
1042 priv
->alloc_rxb_skb
--;
1043 dev_kfree_skb_any(cmd
.meta
.u
.skb
);
1049 * iwl3945_commit_rxon - commit staging_rxon to hardware
1051 * The RXON command in staging_rxon is committed to the hardware and
1052 * the active_rxon structure is updated with the new data. This
1053 * function correctly transitions out of the RXON_ASSOC_MSK state if
1054 * a HW tune is required based on the RXON structure changes.
1056 static int iwl3945_commit_rxon(struct iwl3945_priv
*priv
)
1058 /* cast away the const for active_rxon in this function */
1059 struct iwl3945_rxon_cmd
*active_rxon
= (void *)&priv
->active_rxon
;
1061 DECLARE_MAC_BUF(mac
);
1063 if (!iwl3945_is_alive(priv
))
1066 /* always get timestamp with Rx frame */
1067 priv
->staging_rxon
.flags
|= RXON_FLG_TSF2HOST_MSK
;
1069 /* select antenna */
1070 priv
->staging_rxon
.flags
&=
1071 ~(RXON_FLG_DIS_DIV_MSK
| RXON_FLG_ANT_SEL_MSK
);
1072 priv
->staging_rxon
.flags
|= iwl3945_get_antenna_flags(priv
);
1074 rc
= iwl3945_check_rxon_cmd(&priv
->staging_rxon
);
1076 IWL_ERROR("Invalid RXON configuration. Not committing.\n");
1080 /* If we don't need to send a full RXON, we can use
1081 * iwl3945_rxon_assoc_cmd which is used to reconfigure filter
1082 * and other flags for the current radio configuration. */
1083 if (!iwl3945_full_rxon_required(priv
)) {
1084 rc
= iwl3945_send_rxon_assoc(priv
);
1086 IWL_ERROR("Error setting RXON_ASSOC "
1087 "configuration (%d).\n", rc
);
1091 memcpy(active_rxon
, &priv
->staging_rxon
, sizeof(*active_rxon
));
1096 /* If we are currently associated and the new config requires
1097 * an RXON_ASSOC and the new config wants the associated mask enabled,
1098 * we must clear the associated from the active configuration
1099 * before we apply the new config */
1100 if (iwl3945_is_associated(priv
) &&
1101 (priv
->staging_rxon
.filter_flags
& RXON_FILTER_ASSOC_MSK
)) {
1102 IWL_DEBUG_INFO("Toggling associated bit on current RXON\n");
1103 active_rxon
->filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
1105 rc
= iwl3945_send_cmd_pdu(priv
, REPLY_RXON
,
1106 sizeof(struct iwl3945_rxon_cmd
),
1107 &priv
->active_rxon
);
1109 /* If the mask clearing failed then we set
1110 * active_rxon back to what it was previously */
1112 active_rxon
->filter_flags
|= RXON_FILTER_ASSOC_MSK
;
1113 IWL_ERROR("Error clearing ASSOC_MSK on current "
1114 "configuration (%d).\n", rc
);
1119 IWL_DEBUG_INFO("Sending RXON\n"
1120 "* with%s RXON_FILTER_ASSOC_MSK\n"
1123 ((priv
->staging_rxon
.filter_flags
&
1124 RXON_FILTER_ASSOC_MSK
) ? "" : "out"),
1125 le16_to_cpu(priv
->staging_rxon
.channel
),
1126 print_mac(mac
, priv
->staging_rxon
.bssid_addr
));
1128 /* Apply the new configuration */
1129 rc
= iwl3945_send_cmd_pdu(priv
, REPLY_RXON
,
1130 sizeof(struct iwl3945_rxon_cmd
), &priv
->staging_rxon
);
1132 IWL_ERROR("Error setting new configuration (%d).\n", rc
);
1136 memcpy(active_rxon
, &priv
->staging_rxon
, sizeof(*active_rxon
));
1138 iwl3945_clear_stations_table(priv
);
1140 /* If we issue a new RXON command which required a tune then we must
1141 * send a new TXPOWER command or we won't be able to Tx any frames */
1142 rc
= iwl3945_hw_reg_send_txpower(priv
);
1144 IWL_ERROR("Error setting Tx power (%d).\n", rc
);
1148 /* Add the broadcast address so we can send broadcast frames */
1149 if (iwl3945_add_station(priv
, iwl3945_broadcast_addr
, 0, 0) ==
1150 IWL_INVALID_STATION
) {
1151 IWL_ERROR("Error adding BROADCAST address for transmit.\n");
1155 /* If we have set the ASSOC_MSK and we are in BSS mode then
1156 * add the IWL_AP_ID to the station rate table */
1157 if (iwl3945_is_associated(priv
) &&
1158 (priv
->iw_mode
== IEEE80211_IF_TYPE_STA
))
1159 if (iwl3945_add_station(priv
, priv
->active_rxon
.bssid_addr
, 1, 0)
1160 == IWL_INVALID_STATION
) {
1161 IWL_ERROR("Error adding AP address for transmit.\n");
1165 /* Init the hardware's rate fallback order based on the band */
1166 rc
= iwl3945_init_hw_rate_table(priv
);
1168 IWL_ERROR("Error setting HW rate table: %02X\n", rc
);
1175 static int iwl3945_send_bt_config(struct iwl3945_priv
*priv
)
1177 struct iwl3945_bt_cmd bt_cmd
= {
1185 return iwl3945_send_cmd_pdu(priv
, REPLY_BT_CONFIG
,
1186 sizeof(struct iwl3945_bt_cmd
), &bt_cmd
);
1189 static int iwl3945_send_scan_abort(struct iwl3945_priv
*priv
)
1192 struct iwl3945_rx_packet
*res
;
1193 struct iwl3945_host_cmd cmd
= {
1194 .id
= REPLY_SCAN_ABORT_CMD
,
1195 .meta
.flags
= CMD_WANT_SKB
,
1198 /* If there isn't a scan actively going on in the hardware
1199 * then we are in between scan bands and not actually
1200 * actively scanning, so don't send the abort command */
1201 if (!test_bit(STATUS_SCAN_HW
, &priv
->status
)) {
1202 clear_bit(STATUS_SCAN_ABORTING
, &priv
->status
);
1206 rc
= iwl3945_send_cmd_sync(priv
, &cmd
);
1208 clear_bit(STATUS_SCAN_ABORTING
, &priv
->status
);
1212 res
= (struct iwl3945_rx_packet
*)cmd
.meta
.u
.skb
->data
;
1213 if (res
->u
.status
!= CAN_ABORT_STATUS
) {
1214 /* The scan abort will return 1 for success or
1215 * 2 for "failure". A failure condition can be
1216 * due to simply not being in an active scan which
1217 * can occur if we send the scan abort before we
1218 * the microcode has notified us that a scan is
1220 IWL_DEBUG_INFO("SCAN_ABORT returned %d.\n", res
->u
.status
);
1221 clear_bit(STATUS_SCAN_ABORTING
, &priv
->status
);
1222 clear_bit(STATUS_SCAN_HW
, &priv
->status
);
1225 dev_kfree_skb_any(cmd
.meta
.u
.skb
);
1230 static int iwl3945_card_state_sync_callback(struct iwl3945_priv
*priv
,
1231 struct iwl3945_cmd
*cmd
,
1232 struct sk_buff
*skb
)
1240 * Use: Sets the device's internal card state to enable, disable, or halt
1242 * When in the 'enable' state the card operates as normal.
1243 * When in the 'disable' state, the card enters into a low power mode.
1244 * When in the 'halt' state, the card is shut down and must be fully
1245 * restarted to come back on.
1247 static int iwl3945_send_card_state(struct iwl3945_priv
*priv
, u32 flags
, u8 meta_flag
)
1249 struct iwl3945_host_cmd cmd
= {
1250 .id
= REPLY_CARD_STATE_CMD
,
1253 .meta
.flags
= meta_flag
,
1256 if (meta_flag
& CMD_ASYNC
)
1257 cmd
.meta
.u
.callback
= iwl3945_card_state_sync_callback
;
1259 return iwl3945_send_cmd(priv
, &cmd
);
1262 static int iwl3945_add_sta_sync_callback(struct iwl3945_priv
*priv
,
1263 struct iwl3945_cmd
*cmd
, struct sk_buff
*skb
)
1265 struct iwl3945_rx_packet
*res
= NULL
;
1268 IWL_ERROR("Error: Response NULL in REPLY_ADD_STA.\n");
1272 res
= (struct iwl3945_rx_packet
*)skb
->data
;
1273 if (res
->hdr
.flags
& IWL_CMD_FAILED_MSK
) {
1274 IWL_ERROR("Bad return from REPLY_ADD_STA (0x%08X)\n",
1279 switch (res
->u
.add_sta
.status
) {
1280 case ADD_STA_SUCCESS_MSK
:
1286 /* We didn't cache the SKB; let the caller free it */
1290 int iwl3945_send_add_station(struct iwl3945_priv
*priv
,
1291 struct iwl3945_addsta_cmd
*sta
, u8 flags
)
1293 struct iwl3945_rx_packet
*res
= NULL
;
1295 struct iwl3945_host_cmd cmd
= {
1296 .id
= REPLY_ADD_STA
,
1297 .len
= sizeof(struct iwl3945_addsta_cmd
),
1298 .meta
.flags
= flags
,
1302 if (flags
& CMD_ASYNC
)
1303 cmd
.meta
.u
.callback
= iwl3945_add_sta_sync_callback
;
1305 cmd
.meta
.flags
|= CMD_WANT_SKB
;
1307 rc
= iwl3945_send_cmd(priv
, &cmd
);
1309 if (rc
|| (flags
& CMD_ASYNC
))
1312 res
= (struct iwl3945_rx_packet
*)cmd
.meta
.u
.skb
->data
;
1313 if (res
->hdr
.flags
& IWL_CMD_FAILED_MSK
) {
1314 IWL_ERROR("Bad return from REPLY_ADD_STA (0x%08X)\n",
1320 switch (res
->u
.add_sta
.status
) {
1321 case ADD_STA_SUCCESS_MSK
:
1322 IWL_DEBUG_INFO("REPLY_ADD_STA PASSED\n");
1326 IWL_WARNING("REPLY_ADD_STA failed\n");
1331 priv
->alloc_rxb_skb
--;
1332 dev_kfree_skb_any(cmd
.meta
.u
.skb
);
1337 static int iwl3945_update_sta_key_info(struct iwl3945_priv
*priv
,
1338 struct ieee80211_key_conf
*keyconf
,
1341 unsigned long flags
;
1342 __le16 key_flags
= 0;
1344 switch (keyconf
->alg
) {
1346 key_flags
|= STA_KEY_FLG_CCMP
;
1347 key_flags
|= cpu_to_le16(
1348 keyconf
->keyidx
<< STA_KEY_FLG_KEYID_POS
);
1349 key_flags
&= ~STA_KEY_FLG_INVALID
;
1356 spin_lock_irqsave(&priv
->sta_lock
, flags
);
1357 priv
->stations
[sta_id
].keyinfo
.alg
= keyconf
->alg
;
1358 priv
->stations
[sta_id
].keyinfo
.keylen
= keyconf
->keylen
;
1359 memcpy(priv
->stations
[sta_id
].keyinfo
.key
, keyconf
->key
,
1362 memcpy(priv
->stations
[sta_id
].sta
.key
.key
, keyconf
->key
,
1364 priv
->stations
[sta_id
].sta
.key
.key_flags
= key_flags
;
1365 priv
->stations
[sta_id
].sta
.sta
.modify_mask
= STA_MODIFY_KEY_MASK
;
1366 priv
->stations
[sta_id
].sta
.mode
= STA_CONTROL_MODIFY_MSK
;
1368 spin_unlock_irqrestore(&priv
->sta_lock
, flags
);
1370 IWL_DEBUG_INFO("hwcrypto: modify ucode station key info\n");
1371 iwl3945_send_add_station(priv
, &priv
->stations
[sta_id
].sta
, 0);
1375 static int iwl3945_clear_sta_key_info(struct iwl3945_priv
*priv
, u8 sta_id
)
1377 unsigned long flags
;
1379 spin_lock_irqsave(&priv
->sta_lock
, flags
);
1380 memset(&priv
->stations
[sta_id
].keyinfo
, 0, sizeof(struct iwl3945_hw_key
));
1381 memset(&priv
->stations
[sta_id
].sta
.key
, 0, sizeof(struct iwl3945_keyinfo
));
1382 priv
->stations
[sta_id
].sta
.key
.key_flags
= STA_KEY_FLG_NO_ENC
;
1383 priv
->stations
[sta_id
].sta
.sta
.modify_mask
= STA_MODIFY_KEY_MASK
;
1384 priv
->stations
[sta_id
].sta
.mode
= STA_CONTROL_MODIFY_MSK
;
1385 spin_unlock_irqrestore(&priv
->sta_lock
, flags
);
1387 IWL_DEBUG_INFO("hwcrypto: clear ucode station key info\n");
1388 iwl3945_send_add_station(priv
, &priv
->stations
[sta_id
].sta
, 0);
1392 static void iwl3945_clear_free_frames(struct iwl3945_priv
*priv
)
1394 struct list_head
*element
;
1396 IWL_DEBUG_INFO("%d frames on pre-allocated heap on clear.\n",
1397 priv
->frames_count
);
1399 while (!list_empty(&priv
->free_frames
)) {
1400 element
= priv
->free_frames
.next
;
1402 kfree(list_entry(element
, struct iwl3945_frame
, list
));
1403 priv
->frames_count
--;
1406 if (priv
->frames_count
) {
1407 IWL_WARNING("%d frames still in use. Did we lose one?\n",
1408 priv
->frames_count
);
1409 priv
->frames_count
= 0;
1413 static struct iwl3945_frame
*iwl3945_get_free_frame(struct iwl3945_priv
*priv
)
1415 struct iwl3945_frame
*frame
;
1416 struct list_head
*element
;
1417 if (list_empty(&priv
->free_frames
)) {
1418 frame
= kzalloc(sizeof(*frame
), GFP_KERNEL
);
1420 IWL_ERROR("Could not allocate frame!\n");
1424 priv
->frames_count
++;
1428 element
= priv
->free_frames
.next
;
1430 return list_entry(element
, struct iwl3945_frame
, list
);
1433 static void iwl3945_free_frame(struct iwl3945_priv
*priv
, struct iwl3945_frame
*frame
)
1435 memset(frame
, 0, sizeof(*frame
));
1436 list_add(&frame
->list
, &priv
->free_frames
);
1439 unsigned int iwl3945_fill_beacon_frame(struct iwl3945_priv
*priv
,
1440 struct ieee80211_hdr
*hdr
,
1441 const u8
*dest
, int left
)
1444 if (!iwl3945_is_associated(priv
) || !priv
->ibss_beacon
||
1445 ((priv
->iw_mode
!= IEEE80211_IF_TYPE_IBSS
) &&
1446 (priv
->iw_mode
!= IEEE80211_IF_TYPE_AP
)))
1449 if (priv
->ibss_beacon
->len
> left
)
1452 memcpy(hdr
, priv
->ibss_beacon
->data
, priv
->ibss_beacon
->len
);
1454 return priv
->ibss_beacon
->len
;
1457 static u8
iwl3945_rate_get_lowest_plcp(int rate_mask
)
1461 for (i
= IWL_RATE_1M_INDEX
; i
!= IWL_RATE_INVALID
;
1462 i
= iwl3945_rates
[i
].next_ieee
) {
1463 if (rate_mask
& (1 << i
))
1464 return iwl3945_rates
[i
].plcp
;
1467 return IWL_RATE_INVALID
;
1470 static int iwl3945_send_beacon_cmd(struct iwl3945_priv
*priv
)
1472 struct iwl3945_frame
*frame
;
1473 unsigned int frame_size
;
1477 frame
= iwl3945_get_free_frame(priv
);
1480 IWL_ERROR("Could not obtain free frame buffer for beacon "
1485 if (!(priv
->staging_rxon
.flags
& RXON_FLG_BAND_24G_MSK
)) {
1486 rate
= iwl3945_rate_get_lowest_plcp(priv
->active_rate_basic
&
1488 if (rate
== IWL_INVALID_RATE
)
1489 rate
= IWL_RATE_6M_PLCP
;
1491 rate
= iwl3945_rate_get_lowest_plcp(priv
->active_rate_basic
& 0xF);
1492 if (rate
== IWL_INVALID_RATE
)
1493 rate
= IWL_RATE_1M_PLCP
;
1496 frame_size
= iwl3945_hw_get_beacon_cmd(priv
, frame
, rate
);
1498 rc
= iwl3945_send_cmd_pdu(priv
, REPLY_TX_BEACON
, frame_size
,
1501 iwl3945_free_frame(priv
, frame
);
1506 /******************************************************************************
1508 * EEPROM related functions
1510 ******************************************************************************/
1512 static void get_eeprom_mac(struct iwl3945_priv
*priv
, u8
*mac
)
1514 memcpy(mac
, priv
->eeprom
.mac_address
, 6);
1518 * Clear the OWNER_MSK, to establish driver (instead of uCode running on
1519 * embedded controller) as EEPROM reader; each read is a series of pulses
1520 * to/from the EEPROM chip, not a single event, so even reads could conflict
1521 * if they weren't arbitrated by some ownership mechanism. Here, the driver
1522 * simply claims ownership, which should be safe when this function is called
1523 * (i.e. before loading uCode!).
1525 static inline int iwl3945_eeprom_acquire_semaphore(struct iwl3945_priv
*priv
)
1527 _iwl3945_clear_bit(priv
, CSR_EEPROM_GP
, CSR_EEPROM_GP_IF_OWNER_MSK
);
1532 * iwl3945_eeprom_init - read EEPROM contents
1534 * Load the EEPROM contents from adapter into priv->eeprom
1536 * NOTE: This routine uses the non-debug IO access functions.
1538 int iwl3945_eeprom_init(struct iwl3945_priv
*priv
)
1540 u16
*e
= (u16
*)&priv
->eeprom
;
1541 u32 gp
= iwl3945_read32(priv
, CSR_EEPROM_GP
);
1543 int sz
= sizeof(priv
->eeprom
);
1548 /* The EEPROM structure has several padding buffers within it
1549 * and when adding new EEPROM maps is subject to programmer errors
1550 * which may be very difficult to identify without explicitly
1551 * checking the resulting size of the eeprom map. */
1552 BUILD_BUG_ON(sizeof(priv
->eeprom
) != IWL_EEPROM_IMAGE_SIZE
);
1554 if ((gp
& CSR_EEPROM_GP_VALID_MSK
) == CSR_EEPROM_GP_BAD_SIGNATURE
) {
1555 IWL_ERROR("EEPROM not found, EEPROM_GP=0x%08x", gp
);
1559 /* Make sure driver (instead of uCode) is allowed to read EEPROM */
1560 rc
= iwl3945_eeprom_acquire_semaphore(priv
);
1562 IWL_ERROR("Failed to acquire EEPROM semaphore.\n");
1566 /* eeprom is an array of 16bit values */
1567 for (addr
= 0; addr
< sz
; addr
+= sizeof(u16
)) {
1568 _iwl3945_write32(priv
, CSR_EEPROM_REG
, addr
<< 1);
1569 _iwl3945_clear_bit(priv
, CSR_EEPROM_REG
, CSR_EEPROM_REG_BIT_CMD
);
1571 for (i
= 0; i
< IWL_EEPROM_ACCESS_TIMEOUT
;
1572 i
+= IWL_EEPROM_ACCESS_DELAY
) {
1573 r
= _iwl3945_read_direct32(priv
, CSR_EEPROM_REG
);
1574 if (r
& CSR_EEPROM_REG_READ_VALID_MSK
)
1576 udelay(IWL_EEPROM_ACCESS_DELAY
);
1579 if (!(r
& CSR_EEPROM_REG_READ_VALID_MSK
)) {
1580 IWL_ERROR("Time out reading EEPROM[%d]", addr
);
1583 e
[addr
/ 2] = le16_to_cpu((__force __le16
)(r
>> 16));
1589 static void iwl3945_unset_hw_setting(struct iwl3945_priv
*priv
)
1591 if (priv
->hw_setting
.shared_virt
)
1592 pci_free_consistent(priv
->pci_dev
,
1593 sizeof(struct iwl3945_shared
),
1594 priv
->hw_setting
.shared_virt
,
1595 priv
->hw_setting
.shared_phys
);
1599 * iwl3945_supported_rate_to_ie - fill in the supported rate in IE field
1601 * return : set the bit for each supported rate insert in ie
1603 static u16
iwl3945_supported_rate_to_ie(u8
*ie
, u16 supported_rate
,
1604 u16 basic_rate
, int *left
)
1606 u16 ret_rates
= 0, bit
;
1611 for (bit
= 1, i
= 0; i
< IWL_RATE_COUNT
; i
++, bit
<<= 1) {
1612 if (bit
& supported_rate
) {
1614 rates
[*cnt
] = iwl3945_rates
[i
].ieee
|
1615 ((bit
& basic_rate
) ? 0x80 : 0x00);
1619 (*cnt
>= IWL_SUPPORTED_RATES_IE_LEN
))
1628 * iwl3945_fill_probe_req - fill in all required fields and IE for probe request
1630 static u16
iwl3945_fill_probe_req(struct iwl3945_priv
*priv
,
1631 struct ieee80211_mgmt
*frame
,
1632 int left
, int is_direct
)
1636 u16 active_rates
, ret_rates
, cck_rates
;
1638 /* Make sure there is enough space for the probe request,
1639 * two mandatory IEs and the data */
1645 frame
->frame_control
= cpu_to_le16(IEEE80211_STYPE_PROBE_REQ
);
1646 memcpy(frame
->da
, iwl3945_broadcast_addr
, ETH_ALEN
);
1647 memcpy(frame
->sa
, priv
->mac_addr
, ETH_ALEN
);
1648 memcpy(frame
->bssid
, iwl3945_broadcast_addr
, ETH_ALEN
);
1649 frame
->seq_ctrl
= 0;
1651 /* fill in our indirect SSID IE */
1658 pos
= &(frame
->u
.probe_req
.variable
[0]);
1659 *pos
++ = WLAN_EID_SSID
;
1662 /* fill in our direct SSID IE... */
1665 left
-= 2 + priv
->essid_len
;
1668 /* ... fill it in... */
1669 *pos
++ = WLAN_EID_SSID
;
1670 *pos
++ = priv
->essid_len
;
1671 memcpy(pos
, priv
->essid
, priv
->essid_len
);
1672 pos
+= priv
->essid_len
;
1673 len
+= 2 + priv
->essid_len
;
1676 /* fill in supported rate */
1682 /* ... fill it in... */
1683 *pos
++ = WLAN_EID_SUPP_RATES
;
1686 priv
->active_rate
= priv
->rates_mask
;
1687 active_rates
= priv
->active_rate
;
1688 priv
->active_rate_basic
= priv
->rates_mask
& IWL_BASIC_RATES_MASK
;
1690 cck_rates
= IWL_CCK_RATES_MASK
& active_rates
;
1691 ret_rates
= iwl3945_supported_rate_to_ie(pos
, cck_rates
,
1692 priv
->active_rate_basic
, &left
);
1693 active_rates
&= ~ret_rates
;
1695 ret_rates
= iwl3945_supported_rate_to_ie(pos
, active_rates
,
1696 priv
->active_rate_basic
, &left
);
1697 active_rates
&= ~ret_rates
;
1701 if (active_rates
== 0)
1704 /* fill in supported extended rate */
1709 /* ... fill it in... */
1710 *pos
++ = WLAN_EID_EXT_SUPP_RATES
;
1712 iwl3945_supported_rate_to_ie(pos
, active_rates
,
1713 priv
->active_rate_basic
, &left
);
1724 static int iwl3945_send_qos_params_command(struct iwl3945_priv
*priv
,
1725 struct iwl3945_qosparam_cmd
*qos
)
1728 return iwl3945_send_cmd_pdu(priv
, REPLY_QOS_PARAM
,
1729 sizeof(struct iwl3945_qosparam_cmd
), qos
);
1732 static void iwl3945_reset_qos(struct iwl3945_priv
*priv
)
1738 unsigned long flags
;
1741 spin_lock_irqsave(&priv
->lock
, flags
);
1742 priv
->qos_data
.qos_active
= 0;
1744 if (priv
->iw_mode
== IEEE80211_IF_TYPE_IBSS
) {
1745 if (priv
->qos_data
.qos_enable
)
1746 priv
->qos_data
.qos_active
= 1;
1747 if (!(priv
->active_rate
& 0xfff0)) {
1751 } else if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) {
1752 if (priv
->qos_data
.qos_enable
)
1753 priv
->qos_data
.qos_active
= 1;
1754 } else if (!(priv
->staging_rxon
.flags
& RXON_FLG_SHORT_SLOT_MSK
)) {
1759 if (priv
->qos_data
.qos_active
)
1762 priv
->qos_data
.def_qos_parm
.ac
[0].cw_min
= cpu_to_le16(cw_min
);
1763 priv
->qos_data
.def_qos_parm
.ac
[0].cw_max
= cpu_to_le16(cw_max
);
1764 priv
->qos_data
.def_qos_parm
.ac
[0].aifsn
= aifs
;
1765 priv
->qos_data
.def_qos_parm
.ac
[0].edca_txop
= 0;
1766 priv
->qos_data
.def_qos_parm
.ac
[0].reserved1
= 0;
1768 if (priv
->qos_data
.qos_active
) {
1770 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_min
= cpu_to_le16(cw_min
);
1771 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_max
= cpu_to_le16(cw_max
);
1772 priv
->qos_data
.def_qos_parm
.ac
[i
].aifsn
= 7;
1773 priv
->qos_data
.def_qos_parm
.ac
[i
].edca_txop
= 0;
1774 priv
->qos_data
.def_qos_parm
.ac
[i
].reserved1
= 0;
1777 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_min
=
1778 cpu_to_le16((cw_min
+ 1) / 2 - 1);
1779 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_max
=
1780 cpu_to_le16(cw_max
);
1781 priv
->qos_data
.def_qos_parm
.ac
[i
].aifsn
= 2;
1783 priv
->qos_data
.def_qos_parm
.ac
[i
].edca_txop
=
1786 priv
->qos_data
.def_qos_parm
.ac
[i
].edca_txop
=
1788 priv
->qos_data
.def_qos_parm
.ac
[i
].reserved1
= 0;
1791 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_min
=
1792 cpu_to_le16((cw_min
+ 1) / 4 - 1);
1793 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_max
=
1794 cpu_to_le16((cw_max
+ 1) / 2 - 1);
1795 priv
->qos_data
.def_qos_parm
.ac
[i
].aifsn
= 2;
1796 priv
->qos_data
.def_qos_parm
.ac
[i
].reserved1
= 0;
1798 priv
->qos_data
.def_qos_parm
.ac
[i
].edca_txop
=
1801 priv
->qos_data
.def_qos_parm
.ac
[i
].edca_txop
=
1804 for (i
= 1; i
< 4; i
++) {
1805 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_min
=
1806 cpu_to_le16(cw_min
);
1807 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_max
=
1808 cpu_to_le16(cw_max
);
1809 priv
->qos_data
.def_qos_parm
.ac
[i
].aifsn
= aifs
;
1810 priv
->qos_data
.def_qos_parm
.ac
[i
].edca_txop
= 0;
1811 priv
->qos_data
.def_qos_parm
.ac
[i
].reserved1
= 0;
1814 IWL_DEBUG_QOS("set QoS to default \n");
1816 spin_unlock_irqrestore(&priv
->lock
, flags
);
1819 static void iwl3945_activate_qos(struct iwl3945_priv
*priv
, u8 force
)
1821 unsigned long flags
;
1823 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
1826 if (!priv
->qos_data
.qos_enable
)
1829 spin_lock_irqsave(&priv
->lock
, flags
);
1830 priv
->qos_data
.def_qos_parm
.qos_flags
= 0;
1832 if (priv
->qos_data
.qos_cap
.q_AP
.queue_request
&&
1833 !priv
->qos_data
.qos_cap
.q_AP
.txop_request
)
1834 priv
->qos_data
.def_qos_parm
.qos_flags
|=
1835 QOS_PARAM_FLG_TXOP_TYPE_MSK
;
1837 if (priv
->qos_data
.qos_active
)
1838 priv
->qos_data
.def_qos_parm
.qos_flags
|=
1839 QOS_PARAM_FLG_UPDATE_EDCA_MSK
;
1841 spin_unlock_irqrestore(&priv
->lock
, flags
);
1843 if (force
|| iwl3945_is_associated(priv
)) {
1844 IWL_DEBUG_QOS("send QoS cmd with Qos active %d \n",
1845 priv
->qos_data
.qos_active
);
1847 iwl3945_send_qos_params_command(priv
,
1848 &(priv
->qos_data
.def_qos_parm
));
1853 * Power management (not Tx power!) functions
1855 #define MSEC_TO_USEC 1024
1857 #define NOSLP __constant_cpu_to_le32(0)
1858 #define SLP IWL_POWER_DRIVER_ALLOW_SLEEP_MSK
1859 #define SLP_TIMEOUT(T) __constant_cpu_to_le32((T) * MSEC_TO_USEC)
1860 #define SLP_VEC(X0, X1, X2, X3, X4) {__constant_cpu_to_le32(X0), \
1861 __constant_cpu_to_le32(X1), \
1862 __constant_cpu_to_le32(X2), \
1863 __constant_cpu_to_le32(X3), \
1864 __constant_cpu_to_le32(X4)}
1867 /* default power management (not Tx power) table values */
1869 static struct iwl3945_power_vec_entry range_0
[IWL_POWER_AC
] = {
1870 {{NOSLP
, SLP_TIMEOUT(0), SLP_TIMEOUT(0), SLP_VEC(0, 0, 0, 0, 0)}, 0},
1871 {{SLP
, SLP_TIMEOUT(200), SLP_TIMEOUT(500), SLP_VEC(1, 2, 3, 4, 4)}, 0},
1872 {{SLP
, SLP_TIMEOUT(200), SLP_TIMEOUT(300), SLP_VEC(2, 4, 6, 7, 7)}, 0},
1873 {{SLP
, SLP_TIMEOUT(50), SLP_TIMEOUT(100), SLP_VEC(2, 6, 9, 9, 10)}, 0},
1874 {{SLP
, SLP_TIMEOUT(50), SLP_TIMEOUT(25), SLP_VEC(2, 7, 9, 9, 10)}, 1},
1875 {{SLP
, SLP_TIMEOUT(25), SLP_TIMEOUT(25), SLP_VEC(4, 7, 10, 10, 10)}, 1}
1879 static struct iwl3945_power_vec_entry range_1
[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),
1882 SLP_VEC(1, 2, 3, 4, 0xFF)}, 0},
1883 {{SLP
, SLP_TIMEOUT(200), SLP_TIMEOUT(300),
1884 SLP_VEC(2, 4, 6, 7, 0xFF)}, 0},
1885 {{SLP
, SLP_TIMEOUT(50), SLP_TIMEOUT(100),
1886 SLP_VEC(2, 6, 9, 9, 0xFF)}, 0},
1887 {{SLP
, SLP_TIMEOUT(50), SLP_TIMEOUT(25), SLP_VEC(2, 7, 9, 9, 0xFF)}, 0},
1888 {{SLP
, SLP_TIMEOUT(25), SLP_TIMEOUT(25),
1889 SLP_VEC(4, 7, 10, 10, 0xFF)}, 0}
1892 int iwl3945_power_init_handle(struct iwl3945_priv
*priv
)
1895 struct iwl3945_power_mgr
*pow_data
;
1896 int size
= sizeof(struct iwl3945_power_vec_entry
) * IWL_POWER_AC
;
1899 IWL_DEBUG_POWER("Initialize power \n");
1901 pow_data
= &(priv
->power_data
);
1903 memset(pow_data
, 0, sizeof(*pow_data
));
1905 pow_data
->active_index
= IWL_POWER_RANGE_0
;
1906 pow_data
->dtim_val
= 0xffff;
1908 memcpy(&pow_data
->pwr_range_0
[0], &range_0
[0], size
);
1909 memcpy(&pow_data
->pwr_range_1
[0], &range_1
[0], size
);
1911 rc
= pci_read_config_word(priv
->pci_dev
, PCI_LINK_CTRL
, &pci_pm
);
1915 struct iwl3945_powertable_cmd
*cmd
;
1917 IWL_DEBUG_POWER("adjust power command flags\n");
1919 for (i
= 0; i
< IWL_POWER_AC
; i
++) {
1920 cmd
= &pow_data
->pwr_range_0
[i
].cmd
;
1923 cmd
->flags
&= ~IWL_POWER_PCI_PM_MSK
;
1925 cmd
->flags
|= IWL_POWER_PCI_PM_MSK
;
1931 static int iwl3945_update_power_cmd(struct iwl3945_priv
*priv
,
1932 struct iwl3945_powertable_cmd
*cmd
, u32 mode
)
1937 struct iwl3945_power_vec_entry
*range
;
1939 struct iwl3945_power_mgr
*pow_data
;
1941 if (mode
> IWL_POWER_INDEX_5
) {
1942 IWL_DEBUG_POWER("Error invalid power mode \n");
1945 pow_data
= &(priv
->power_data
);
1947 if (pow_data
->active_index
== IWL_POWER_RANGE_0
)
1948 range
= &pow_data
->pwr_range_0
[0];
1950 range
= &pow_data
->pwr_range_1
[1];
1952 memcpy(cmd
, &range
[mode
].cmd
, sizeof(struct iwl3945_powertable_cmd
));
1954 #ifdef IWL_MAC80211_DISABLE
1955 if (priv
->assoc_network
!= NULL
) {
1956 unsigned long flags
;
1958 period
= priv
->assoc_network
->tim
.tim_period
;
1960 #endif /*IWL_MAC80211_DISABLE */
1961 skip
= range
[mode
].no_dtim
;
1970 cmd
->flags
&= ~IWL_POWER_SLEEP_OVER_DTIM_MSK
;
1972 __le32 slp_itrvl
= cmd
->sleep_interval
[IWL_POWER_VEC_SIZE
- 1];
1973 max_sleep
= (le32_to_cpu(slp_itrvl
) / period
) * period
;
1974 cmd
->flags
|= IWL_POWER_SLEEP_OVER_DTIM_MSK
;
1977 for (i
= 0; i
< IWL_POWER_VEC_SIZE
; i
++) {
1978 if (le32_to_cpu(cmd
->sleep_interval
[i
]) > max_sleep
)
1979 cmd
->sleep_interval
[i
] = cpu_to_le32(max_sleep
);
1982 IWL_DEBUG_POWER("Flags value = 0x%08X\n", cmd
->flags
);
1983 IWL_DEBUG_POWER("Tx timeout = %u\n", le32_to_cpu(cmd
->tx_data_timeout
));
1984 IWL_DEBUG_POWER("Rx timeout = %u\n", le32_to_cpu(cmd
->rx_data_timeout
));
1985 IWL_DEBUG_POWER("Sleep interval vector = { %d , %d , %d , %d , %d }\n",
1986 le32_to_cpu(cmd
->sleep_interval
[0]),
1987 le32_to_cpu(cmd
->sleep_interval
[1]),
1988 le32_to_cpu(cmd
->sleep_interval
[2]),
1989 le32_to_cpu(cmd
->sleep_interval
[3]),
1990 le32_to_cpu(cmd
->sleep_interval
[4]));
1995 static int iwl3945_send_power_mode(struct iwl3945_priv
*priv
, u32 mode
)
1997 u32
uninitialized_var(final_mode
);
1999 struct iwl3945_powertable_cmd cmd
;
2001 /* If on battery, set to 3,
2002 * if plugged into AC power, set to CAM ("continuously aware mode"),
2003 * else user level */
2005 case IWL_POWER_BATTERY
:
2006 final_mode
= IWL_POWER_INDEX_3
;
2009 final_mode
= IWL_POWER_MODE_CAM
;
2016 iwl3945_update_power_cmd(priv
, &cmd
, final_mode
);
2018 rc
= iwl3945_send_cmd_pdu(priv
, POWER_TABLE_CMD
, sizeof(cmd
), &cmd
);
2020 if (final_mode
== IWL_POWER_MODE_CAM
)
2021 clear_bit(STATUS_POWER_PMI
, &priv
->status
);
2023 set_bit(STATUS_POWER_PMI
, &priv
->status
);
2028 int iwl3945_is_network_packet(struct iwl3945_priv
*priv
, struct ieee80211_hdr
*header
)
2030 /* Filter incoming packets to determine if they are targeted toward
2031 * this network, discarding packets coming from ourselves */
2032 switch (priv
->iw_mode
) {
2033 case IEEE80211_IF_TYPE_IBSS
: /* Header: Dest. | Source | BSSID */
2034 /* packets from our adapter are dropped (echo) */
2035 if (!compare_ether_addr(header
->addr2
, priv
->mac_addr
))
2037 /* {broad,multi}cast packets to our IBSS go through */
2038 if (is_multicast_ether_addr(header
->addr1
))
2039 return !compare_ether_addr(header
->addr3
, priv
->bssid
);
2040 /* packets to our adapter go through */
2041 return !compare_ether_addr(header
->addr1
, priv
->mac_addr
);
2042 case IEEE80211_IF_TYPE_STA
: /* Header: Dest. | AP{BSSID} | Source */
2043 /* packets from our adapter are dropped (echo) */
2044 if (!compare_ether_addr(header
->addr3
, priv
->mac_addr
))
2046 /* {broad,multi}cast packets to our BSS go through */
2047 if (is_multicast_ether_addr(header
->addr1
))
2048 return !compare_ether_addr(header
->addr2
, priv
->bssid
);
2049 /* packets to our adapter go through */
2050 return !compare_ether_addr(header
->addr1
, priv
->mac_addr
);
2059 * iwl3945_scan_cancel - Cancel any currently executing HW scan
2061 * NOTE: priv->mutex is not required before calling this function
2063 static int iwl3945_scan_cancel(struct iwl3945_priv
*priv
)
2065 if (!test_bit(STATUS_SCAN_HW
, &priv
->status
)) {
2066 clear_bit(STATUS_SCANNING
, &priv
->status
);
2070 if (test_bit(STATUS_SCANNING
, &priv
->status
)) {
2071 if (!test_bit(STATUS_SCAN_ABORTING
, &priv
->status
)) {
2072 IWL_DEBUG_SCAN("Queuing scan abort.\n");
2073 set_bit(STATUS_SCAN_ABORTING
, &priv
->status
);
2074 queue_work(priv
->workqueue
, &priv
->abort_scan
);
2077 IWL_DEBUG_SCAN("Scan abort already in progress.\n");
2079 return test_bit(STATUS_SCANNING
, &priv
->status
);
2086 * iwl3945_scan_cancel_timeout - Cancel any currently executing HW scan
2087 * @ms: amount of time to wait (in milliseconds) for scan to abort
2089 * NOTE: priv->mutex must be held before calling this function
2091 static int iwl3945_scan_cancel_timeout(struct iwl3945_priv
*priv
, unsigned long ms
)
2093 unsigned long now
= jiffies
;
2096 ret
= iwl3945_scan_cancel(priv
);
2098 mutex_unlock(&priv
->mutex
);
2099 while (!time_after(jiffies
, now
+ msecs_to_jiffies(ms
)) &&
2100 test_bit(STATUS_SCANNING
, &priv
->status
))
2102 mutex_lock(&priv
->mutex
);
2104 return test_bit(STATUS_SCANNING
, &priv
->status
);
2110 static void iwl3945_sequence_reset(struct iwl3945_priv
*priv
)
2112 /* Reset ieee stats */
2114 /* We don't reset the net_device_stats (ieee->stats) on
2117 priv
->last_seq_num
= -1;
2118 priv
->last_frag_num
= -1;
2119 priv
->last_packet_time
= 0;
2121 iwl3945_scan_cancel(priv
);
2124 #define MAX_UCODE_BEACON_INTERVAL 1024
2125 #define INTEL_CONN_LISTEN_INTERVAL __constant_cpu_to_le16(0xA)
2127 static __le16
iwl3945_adjust_beacon_interval(u16 beacon_val
)
2130 u16 beacon_factor
= 0;
2133 (beacon_val
+ MAX_UCODE_BEACON_INTERVAL
)
2134 / MAX_UCODE_BEACON_INTERVAL
;
2135 new_val
= beacon_val
/ beacon_factor
;
2137 return cpu_to_le16(new_val
);
2140 static void iwl3945_setup_rxon_timing(struct iwl3945_priv
*priv
)
2142 u64 interval_tm_unit
;
2144 unsigned long flags
;
2145 struct ieee80211_conf
*conf
= NULL
;
2148 conf
= ieee80211_get_hw_conf(priv
->hw
);
2150 spin_lock_irqsave(&priv
->lock
, flags
);
2151 priv
->rxon_timing
.timestamp
.dw
[1] = cpu_to_le32(priv
->timestamp1
);
2152 priv
->rxon_timing
.timestamp
.dw
[0] = cpu_to_le32(priv
->timestamp0
);
2154 priv
->rxon_timing
.listen_interval
= INTEL_CONN_LISTEN_INTERVAL
;
2156 tsf
= priv
->timestamp1
;
2157 tsf
= ((tsf
<< 32) | priv
->timestamp0
);
2159 beacon_int
= priv
->beacon_int
;
2160 spin_unlock_irqrestore(&priv
->lock
, flags
);
2162 if (priv
->iw_mode
== IEEE80211_IF_TYPE_STA
) {
2163 if (beacon_int
== 0) {
2164 priv
->rxon_timing
.beacon_interval
= cpu_to_le16(100);
2165 priv
->rxon_timing
.beacon_init_val
= cpu_to_le32(102400);
2167 priv
->rxon_timing
.beacon_interval
=
2168 cpu_to_le16(beacon_int
);
2169 priv
->rxon_timing
.beacon_interval
=
2170 iwl3945_adjust_beacon_interval(
2171 le16_to_cpu(priv
->rxon_timing
.beacon_interval
));
2174 priv
->rxon_timing
.atim_window
= 0;
2176 priv
->rxon_timing
.beacon_interval
=
2177 iwl3945_adjust_beacon_interval(conf
->beacon_int
);
2178 /* TODO: we need to get atim_window from upper stack
2179 * for now we set to 0 */
2180 priv
->rxon_timing
.atim_window
= 0;
2184 (le16_to_cpu(priv
->rxon_timing
.beacon_interval
) * 1024);
2185 result
= do_div(tsf
, interval_tm_unit
);
2186 priv
->rxon_timing
.beacon_init_val
=
2187 cpu_to_le32((u32
) ((u64
) interval_tm_unit
- result
));
2190 ("beacon interval %d beacon timer %d beacon tim %d\n",
2191 le16_to_cpu(priv
->rxon_timing
.beacon_interval
),
2192 le32_to_cpu(priv
->rxon_timing
.beacon_init_val
),
2193 le16_to_cpu(priv
->rxon_timing
.atim_window
));
2196 static int iwl3945_scan_initiate(struct iwl3945_priv
*priv
)
2198 if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) {
2199 IWL_ERROR("APs don't scan.\n");
2203 if (!iwl3945_is_ready_rf(priv
)) {
2204 IWL_DEBUG_SCAN("Aborting scan due to not ready.\n");
2208 if (test_bit(STATUS_SCANNING
, &priv
->status
)) {
2209 IWL_DEBUG_SCAN("Scan already in progress.\n");
2213 if (test_bit(STATUS_SCAN_ABORTING
, &priv
->status
)) {
2214 IWL_DEBUG_SCAN("Scan request while abort pending. "
2219 IWL_DEBUG_INFO("Starting scan...\n");
2220 priv
->scan_bands
= 2;
2221 set_bit(STATUS_SCANNING
, &priv
->status
);
2222 priv
->scan_start
= jiffies
;
2223 priv
->scan_pass_start
= priv
->scan_start
;
2225 queue_work(priv
->workqueue
, &priv
->request_scan
);
2230 static int iwl3945_set_rxon_hwcrypto(struct iwl3945_priv
*priv
, int hw_decrypt
)
2232 struct iwl3945_rxon_cmd
*rxon
= &priv
->staging_rxon
;
2235 rxon
->filter_flags
&= ~RXON_FILTER_DIS_DECRYPT_MSK
;
2237 rxon
->filter_flags
|= RXON_FILTER_DIS_DECRYPT_MSK
;
2242 static void iwl3945_set_flags_for_phymode(struct iwl3945_priv
*priv
,
2243 enum ieee80211_band band
)
2245 if (band
== IEEE80211_BAND_5GHZ
) {
2246 priv
->staging_rxon
.flags
&=
2247 ~(RXON_FLG_BAND_24G_MSK
| RXON_FLG_AUTO_DETECT_MSK
2248 | RXON_FLG_CCK_MSK
);
2249 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_SLOT_MSK
;
2251 /* Copied from iwl3945_bg_post_associate() */
2252 if (priv
->assoc_capability
& WLAN_CAPABILITY_SHORT_SLOT_TIME
)
2253 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_SLOT_MSK
;
2255 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_SLOT_MSK
;
2257 if (priv
->iw_mode
== IEEE80211_IF_TYPE_IBSS
)
2258 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_SLOT_MSK
;
2260 priv
->staging_rxon
.flags
|= RXON_FLG_BAND_24G_MSK
;
2261 priv
->staging_rxon
.flags
|= RXON_FLG_AUTO_DETECT_MSK
;
2262 priv
->staging_rxon
.flags
&= ~RXON_FLG_CCK_MSK
;
2267 * initialize rxon structure with default values from eeprom
2269 static void iwl3945_connection_init_rx_config(struct iwl3945_priv
*priv
)
2271 const struct iwl3945_channel_info
*ch_info
;
2273 memset(&priv
->staging_rxon
, 0, sizeof(priv
->staging_rxon
));
2275 switch (priv
->iw_mode
) {
2276 case IEEE80211_IF_TYPE_AP
:
2277 priv
->staging_rxon
.dev_type
= RXON_DEV_TYPE_AP
;
2280 case IEEE80211_IF_TYPE_STA
:
2281 priv
->staging_rxon
.dev_type
= RXON_DEV_TYPE_ESS
;
2282 priv
->staging_rxon
.filter_flags
= RXON_FILTER_ACCEPT_GRP_MSK
;
2285 case IEEE80211_IF_TYPE_IBSS
:
2286 priv
->staging_rxon
.dev_type
= RXON_DEV_TYPE_IBSS
;
2287 priv
->staging_rxon
.flags
= RXON_FLG_SHORT_PREAMBLE_MSK
;
2288 priv
->staging_rxon
.filter_flags
= RXON_FILTER_BCON_AWARE_MSK
|
2289 RXON_FILTER_ACCEPT_GRP_MSK
;
2292 case IEEE80211_IF_TYPE_MNTR
:
2293 priv
->staging_rxon
.dev_type
= RXON_DEV_TYPE_SNIFFER
;
2294 priv
->staging_rxon
.filter_flags
= RXON_FILTER_PROMISC_MSK
|
2295 RXON_FILTER_CTL2HOST_MSK
| RXON_FILTER_ACCEPT_GRP_MSK
;
2298 IWL_ERROR("Unsupported interface type %d\n", priv
->iw_mode
);
2303 /* TODO: Figure out when short_preamble would be set and cache from
2305 if (!hw_to_local(priv
->hw
)->short_preamble
)
2306 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_PREAMBLE_MSK
;
2308 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_PREAMBLE_MSK
;
2311 ch_info
= iwl3945_get_channel_info(priv
, priv
->band
,
2312 le16_to_cpu(priv
->staging_rxon
.channel
));
2315 ch_info
= &priv
->channel_info
[0];
2318 * in some case A channels are all non IBSS
2319 * in this case force B/G channel
2321 if ((priv
->iw_mode
== IEEE80211_IF_TYPE_IBSS
) &&
2322 !(is_channel_ibss(ch_info
)))
2323 ch_info
= &priv
->channel_info
[0];
2325 priv
->staging_rxon
.channel
= cpu_to_le16(ch_info
->channel
);
2326 if (is_channel_a_band(ch_info
))
2327 priv
->band
= IEEE80211_BAND_5GHZ
;
2329 priv
->band
= IEEE80211_BAND_2GHZ
;
2331 iwl3945_set_flags_for_phymode(priv
, priv
->band
);
2333 priv
->staging_rxon
.ofdm_basic_rates
=
2334 (IWL_OFDM_RATES_MASK
>> IWL_FIRST_OFDM_RATE
) & 0xFF;
2335 priv
->staging_rxon
.cck_basic_rates
=
2336 (IWL_CCK_RATES_MASK
>> IWL_FIRST_CCK_RATE
) & 0xF;
2339 static int iwl3945_set_mode(struct iwl3945_priv
*priv
, int mode
)
2341 if (mode
== IEEE80211_IF_TYPE_IBSS
) {
2342 const struct iwl3945_channel_info
*ch_info
;
2344 ch_info
= iwl3945_get_channel_info(priv
,
2346 le16_to_cpu(priv
->staging_rxon
.channel
));
2348 if (!ch_info
|| !is_channel_ibss(ch_info
)) {
2349 IWL_ERROR("channel %d not IBSS channel\n",
2350 le16_to_cpu(priv
->staging_rxon
.channel
));
2355 priv
->iw_mode
= mode
;
2357 iwl3945_connection_init_rx_config(priv
);
2358 memcpy(priv
->staging_rxon
.node_addr
, priv
->mac_addr
, ETH_ALEN
);
2360 iwl3945_clear_stations_table(priv
);
2362 /* dont commit rxon if rf-kill is on*/
2363 if (!iwl3945_is_ready_rf(priv
))
2366 cancel_delayed_work(&priv
->scan_check
);
2367 if (iwl3945_scan_cancel_timeout(priv
, 100)) {
2368 IWL_WARNING("Aborted scan still in progress after 100ms\n");
2369 IWL_DEBUG_MAC80211("leaving - scan abort failed.\n");
2373 iwl3945_commit_rxon(priv
);
2378 static void iwl3945_build_tx_cmd_hwcrypto(struct iwl3945_priv
*priv
,
2379 struct ieee80211_tx_info
*info
,
2380 struct iwl3945_cmd
*cmd
,
2381 struct sk_buff
*skb_frag
,
2384 struct iwl3945_hw_key
*keyinfo
=
2385 &priv
->stations
[info
->control
.hw_key
->hw_key_idx
].keyinfo
;
2387 switch (keyinfo
->alg
) {
2389 cmd
->cmd
.tx
.sec_ctl
= TX_CMD_SEC_CCM
;
2390 memcpy(cmd
->cmd
.tx
.key
, keyinfo
->key
, keyinfo
->keylen
);
2391 IWL_DEBUG_TX("tx_cmd with aes hwcrypto\n");
2396 cmd
->cmd
.tx
.sec_ctl
= TX_CMD_SEC_TKIP
;
2399 memcpy(cmd
->cmd
.tx
.tkip_mic
.byte
, skb_frag
->tail
- 8,
2402 memset(cmd
->cmd
.tx
.tkip_mic
.byte
, 0, 8);
2407 cmd
->cmd
.tx
.sec_ctl
= TX_CMD_SEC_WEP
|
2408 (info
->control
.hw_key
->hw_key_idx
& TX_CMD_SEC_MSK
) << TX_CMD_SEC_SHIFT
;
2410 if (keyinfo
->keylen
== 13)
2411 cmd
->cmd
.tx
.sec_ctl
|= TX_CMD_SEC_KEY128
;
2413 memcpy(&cmd
->cmd
.tx
.key
[3], keyinfo
->key
, keyinfo
->keylen
);
2415 IWL_DEBUG_TX("Configuring packet for WEP encryption "
2416 "with key %d\n", info
->control
.hw_key
->hw_key_idx
);
2420 printk(KERN_ERR
"Unknown encode alg %d\n", keyinfo
->alg
);
2426 * handle build REPLY_TX command notification.
2428 static void iwl3945_build_tx_cmd_basic(struct iwl3945_priv
*priv
,
2429 struct iwl3945_cmd
*cmd
,
2430 struct ieee80211_tx_info
*info
,
2431 struct ieee80211_hdr
*hdr
,
2432 int is_unicast
, u8 std_id
)
2434 u16 fc
= le16_to_cpu(hdr
->frame_control
);
2435 __le32 tx_flags
= cmd
->cmd
.tx
.tx_flags
;
2437 cmd
->cmd
.tx
.stop_time
.life_time
= TX_CMD_LIFE_TIME_INFINITE
;
2438 if (!(info
->flags
& IEEE80211_TX_CTL_NO_ACK
)) {
2439 tx_flags
|= TX_CMD_FLG_ACK_MSK
;
2440 if ((fc
& IEEE80211_FCTL_FTYPE
) == IEEE80211_FTYPE_MGMT
)
2441 tx_flags
|= TX_CMD_FLG_SEQ_CTL_MSK
;
2442 if (ieee80211_is_probe_response(fc
) &&
2443 !(le16_to_cpu(hdr
->seq_ctrl
) & 0xf))
2444 tx_flags
|= TX_CMD_FLG_TSF_MSK
;
2446 tx_flags
&= (~TX_CMD_FLG_ACK_MSK
);
2447 tx_flags
|= TX_CMD_FLG_SEQ_CTL_MSK
;
2450 cmd
->cmd
.tx
.sta_id
= std_id
;
2451 if (ieee80211_get_morefrag(hdr
))
2452 tx_flags
|= TX_CMD_FLG_MORE_FRAG_MSK
;
2454 if (ieee80211_is_qos_data(fc
)) {
2455 u8
*qc
= ieee80211_get_qos_ctrl(hdr
, ieee80211_get_hdrlen(fc
));
2456 cmd
->cmd
.tx
.tid_tspec
= qc
[0] & 0xf;
2457 tx_flags
&= ~TX_CMD_FLG_SEQ_CTL_MSK
;
2459 tx_flags
|= TX_CMD_FLG_SEQ_CTL_MSK
;
2462 if (info
->flags
& IEEE80211_TX_CTL_USE_RTS_CTS
) {
2463 tx_flags
|= TX_CMD_FLG_RTS_MSK
;
2464 tx_flags
&= ~TX_CMD_FLG_CTS_MSK
;
2465 } else if (info
->flags
& IEEE80211_TX_CTL_USE_CTS_PROTECT
) {
2466 tx_flags
&= ~TX_CMD_FLG_RTS_MSK
;
2467 tx_flags
|= TX_CMD_FLG_CTS_MSK
;
2470 if ((tx_flags
& TX_CMD_FLG_RTS_MSK
) || (tx_flags
& TX_CMD_FLG_CTS_MSK
))
2471 tx_flags
|= TX_CMD_FLG_FULL_TXOP_PROT_MSK
;
2473 tx_flags
&= ~(TX_CMD_FLG_ANT_SEL_MSK
);
2474 if ((fc
& IEEE80211_FCTL_FTYPE
) == IEEE80211_FTYPE_MGMT
) {
2475 if ((fc
& IEEE80211_FCTL_STYPE
) == IEEE80211_STYPE_ASSOC_REQ
||
2476 (fc
& IEEE80211_FCTL_STYPE
) == IEEE80211_STYPE_REASSOC_REQ
)
2477 cmd
->cmd
.tx
.timeout
.pm_frame_timeout
= cpu_to_le16(3);
2479 cmd
->cmd
.tx
.timeout
.pm_frame_timeout
= cpu_to_le16(2);
2481 cmd
->cmd
.tx
.timeout
.pm_frame_timeout
= 0;
2482 #ifdef CONFIG_IWL3945_LEDS
2483 priv
->rxtxpackets
+= le16_to_cpu(cmd
->cmd
.tx
.len
);
2487 cmd
->cmd
.tx
.driver_txop
= 0;
2488 cmd
->cmd
.tx
.tx_flags
= tx_flags
;
2489 cmd
->cmd
.tx
.next_frame_len
= 0;
2493 * iwl3945_get_sta_id - Find station's index within station table
2495 static int iwl3945_get_sta_id(struct iwl3945_priv
*priv
, struct ieee80211_hdr
*hdr
)
2498 u16 fc
= le16_to_cpu(hdr
->frame_control
);
2500 /* If this frame is broadcast or management, use broadcast station id */
2501 if (((fc
& IEEE80211_FCTL_FTYPE
) != IEEE80211_FTYPE_DATA
) ||
2502 is_multicast_ether_addr(hdr
->addr1
))
2503 return priv
->hw_setting
.bcast_sta_id
;
2505 switch (priv
->iw_mode
) {
2507 /* If we are a client station in a BSS network, use the special
2508 * AP station entry (that's the only station we communicate with) */
2509 case IEEE80211_IF_TYPE_STA
:
2512 /* If we are an AP, then find the station, or use BCAST */
2513 case IEEE80211_IF_TYPE_AP
:
2514 sta_id
= iwl3945_hw_find_station(priv
, hdr
->addr1
);
2515 if (sta_id
!= IWL_INVALID_STATION
)
2517 return priv
->hw_setting
.bcast_sta_id
;
2519 /* If this frame is going out to an IBSS network, find the station,
2520 * or create a new station table entry */
2521 case IEEE80211_IF_TYPE_IBSS
: {
2522 DECLARE_MAC_BUF(mac
);
2524 /* Create new station table entry */
2525 sta_id
= iwl3945_hw_find_station(priv
, hdr
->addr1
);
2526 if (sta_id
!= IWL_INVALID_STATION
)
2529 sta_id
= iwl3945_add_station(priv
, hdr
->addr1
, 0, CMD_ASYNC
);
2531 if (sta_id
!= IWL_INVALID_STATION
)
2534 IWL_DEBUG_DROP("Station %s not in station map. "
2535 "Defaulting to broadcast...\n",
2536 print_mac(mac
, hdr
->addr1
));
2537 iwl3945_print_hex_dump(IWL_DL_DROP
, (u8
*) hdr
, sizeof(*hdr
));
2538 return priv
->hw_setting
.bcast_sta_id
;
2541 IWL_WARNING("Unknown mode of operation: %d", priv
->iw_mode
);
2542 return priv
->hw_setting
.bcast_sta_id
;
2547 * start REPLY_TX command process
2549 static int iwl3945_tx_skb(struct iwl3945_priv
*priv
, struct sk_buff
*skb
)
2551 struct ieee80211_hdr
*hdr
= (struct ieee80211_hdr
*)skb
->data
;
2552 struct ieee80211_tx_info
*info
= IEEE80211_SKB_CB(skb
);
2553 struct iwl3945_tfd_frame
*tfd
;
2555 int txq_id
= info
->queue
;
2556 struct iwl3945_tx_queue
*txq
= NULL
;
2557 struct iwl3945_queue
*q
= NULL
;
2558 dma_addr_t phys_addr
;
2559 dma_addr_t txcmd_phys
;
2560 struct iwl3945_cmd
*out_cmd
= NULL
;
2561 u16 len
, idx
, len_org
, hdr_len
;
2568 u8 wait_write_ptr
= 0;
2570 unsigned long flags
;
2573 spin_lock_irqsave(&priv
->lock
, flags
);
2574 if (iwl3945_is_rfkill(priv
)) {
2575 IWL_DEBUG_DROP("Dropping - RF KILL\n");
2580 IWL_DEBUG_DROP("Dropping - !priv->vif\n");
2584 if ((ieee80211_get_tx_rate(priv
->hw
, info
)->hw_value
& 0xFF) == IWL_INVALID_RATE
) {
2585 IWL_ERROR("ERROR: No TX rate available.\n");
2589 unicast
= !is_multicast_ether_addr(hdr
->addr1
);
2592 fc
= le16_to_cpu(hdr
->frame_control
);
2594 #ifdef CONFIG_IWL3945_DEBUG
2595 if (ieee80211_is_auth(fc
))
2596 IWL_DEBUG_TX("Sending AUTH frame\n");
2597 else if (ieee80211_is_assoc_request(fc
))
2598 IWL_DEBUG_TX("Sending ASSOC frame\n");
2599 else if (ieee80211_is_reassoc_request(fc
))
2600 IWL_DEBUG_TX("Sending REASSOC frame\n");
2603 /* drop all data frame if we are not associated */
2604 if ((!iwl3945_is_associated(priv
) ||
2605 ((priv
->iw_mode
== IEEE80211_IF_TYPE_STA
) && !priv
->assoc_id
)) &&
2606 ((fc
& IEEE80211_FCTL_FTYPE
) == IEEE80211_FTYPE_DATA
)) {
2607 IWL_DEBUG_DROP("Dropping - !iwl3945_is_associated\n");
2611 spin_unlock_irqrestore(&priv
->lock
, flags
);
2613 hdr_len
= ieee80211_get_hdrlen(fc
);
2615 /* Find (or create) index into station table for destination station */
2616 sta_id
= iwl3945_get_sta_id(priv
, hdr
);
2617 if (sta_id
== IWL_INVALID_STATION
) {
2618 DECLARE_MAC_BUF(mac
);
2620 IWL_DEBUG_DROP("Dropping - INVALID STATION: %s\n",
2621 print_mac(mac
, hdr
->addr1
));
2625 IWL_DEBUG_RATE("station Id %d\n", sta_id
);
2627 if (ieee80211_is_qos_data(fc
)) {
2628 qc
= ieee80211_get_qos_ctrl(hdr
, hdr_len
);
2630 seq_number
= priv
->stations
[sta_id
].tid
[tid
].seq_number
&
2632 hdr
->seq_ctrl
= cpu_to_le16(seq_number
) |
2634 __constant_cpu_to_le16(IEEE80211_SCTL_FRAG
));
2638 /* Descriptor for chosen Tx queue */
2639 txq
= &priv
->txq
[txq_id
];
2642 spin_lock_irqsave(&priv
->lock
, flags
);
2644 /* Set up first empty TFD within this queue's circular TFD buffer */
2645 tfd
= &txq
->bd
[q
->write_ptr
];
2646 memset(tfd
, 0, sizeof(*tfd
));
2647 control_flags
= (u32
*) tfd
;
2648 idx
= get_cmd_index(q
, q
->write_ptr
, 0);
2650 /* Set up driver data for this TFD */
2651 memset(&(txq
->txb
[q
->write_ptr
]), 0, sizeof(struct iwl3945_tx_info
));
2652 txq
->txb
[q
->write_ptr
].skb
[0] = skb
;
2654 /* Init first empty entry in queue's array of Tx/cmd buffers */
2655 out_cmd
= &txq
->cmd
[idx
];
2656 memset(&out_cmd
->hdr
, 0, sizeof(out_cmd
->hdr
));
2657 memset(&out_cmd
->cmd
.tx
, 0, sizeof(out_cmd
->cmd
.tx
));
2660 * Set up the Tx-command (not MAC!) header.
2661 * Store the chosen Tx queue and TFD index within the sequence field;
2662 * after Tx, uCode's Tx response will return this value so driver can
2663 * locate the frame within the tx queue and do post-tx processing.
2665 out_cmd
->hdr
.cmd
= REPLY_TX
;
2666 out_cmd
->hdr
.sequence
= cpu_to_le16((u16
)(QUEUE_TO_SEQ(txq_id
) |
2667 INDEX_TO_SEQ(q
->write_ptr
)));
2669 /* Copy MAC header from skb into command buffer */
2670 memcpy(out_cmd
->cmd
.tx
.hdr
, hdr
, hdr_len
);
2673 * Use the first empty entry in this queue's command buffer array
2674 * to contain the Tx command and MAC header concatenated together
2675 * (payload data will be in another buffer).
2676 * Size of this varies, due to varying MAC header length.
2677 * If end is not dword aligned, we'll have 2 extra bytes at the end
2678 * of the MAC header (device reads on dword boundaries).
2679 * We'll tell device about this padding later.
2681 len
= priv
->hw_setting
.tx_cmd_len
+
2682 sizeof(struct iwl3945_cmd_header
) + hdr_len
;
2685 len
= (len
+ 3) & ~3;
2692 /* Physical address of this Tx command's header (not MAC header!),
2693 * within command buffer array. */
2694 txcmd_phys
= txq
->dma_addr_cmd
+ sizeof(struct iwl3945_cmd
) * idx
+
2695 offsetof(struct iwl3945_cmd
, hdr
);
2697 /* Add buffer containing Tx command and MAC(!) header to TFD's
2699 iwl3945_hw_txq_attach_buf_to_tfd(priv
, tfd
, txcmd_phys
, len
);
2701 if (!(info
->flags
& IEEE80211_TX_CTL_DO_NOT_ENCRYPT
))
2702 iwl3945_build_tx_cmd_hwcrypto(priv
, info
, out_cmd
, skb
, 0);
2704 /* Set up TFD's 2nd entry to point directly to remainder of skb,
2705 * if any (802.11 null frames have no payload). */
2706 len
= skb
->len
- hdr_len
;
2708 phys_addr
= pci_map_single(priv
->pci_dev
, skb
->data
+ hdr_len
,
2709 len
, PCI_DMA_TODEVICE
);
2710 iwl3945_hw_txq_attach_buf_to_tfd(priv
, tfd
, phys_addr
, len
);
2714 /* If there is no payload, then we use only one Tx buffer */
2715 *control_flags
= TFD_CTL_COUNT_SET(1);
2717 /* Else use 2 buffers.
2718 * Tell 3945 about any padding after MAC header */
2719 *control_flags
= TFD_CTL_COUNT_SET(2) |
2720 TFD_CTL_PAD_SET(U32_PAD(len
));
2722 /* Total # bytes to be transmitted */
2723 len
= (u16
)skb
->len
;
2724 out_cmd
->cmd
.tx
.len
= cpu_to_le16(len
);
2726 /* TODO need this for burst mode later on */
2727 iwl3945_build_tx_cmd_basic(priv
, out_cmd
, info
, hdr
, unicast
, sta_id
);
2729 /* set is_hcca to 0; it probably will never be implemented */
2730 iwl3945_hw_build_tx_cmd_rate(priv
, out_cmd
, info
, hdr
, sta_id
, 0);
2732 out_cmd
->cmd
.tx
.tx_flags
&= ~TX_CMD_FLG_ANT_A_MSK
;
2733 out_cmd
->cmd
.tx
.tx_flags
&= ~TX_CMD_FLG_ANT_B_MSK
;
2735 if (!ieee80211_get_morefrag(hdr
)) {
2736 txq
->need_update
= 1;
2738 priv
->stations
[sta_id
].tid
[tid
].seq_number
= seq_number
;
2742 txq
->need_update
= 0;
2745 iwl3945_print_hex_dump(IWL_DL_TX
, out_cmd
->cmd
.payload
,
2746 sizeof(out_cmd
->cmd
.tx
));
2748 iwl3945_print_hex_dump(IWL_DL_TX
, (u8
*)out_cmd
->cmd
.tx
.hdr
,
2749 ieee80211_get_hdrlen(fc
));
2751 /* Tell device the write index *just past* this latest filled TFD */
2752 q
->write_ptr
= iwl_queue_inc_wrap(q
->write_ptr
, q
->n_bd
);
2753 rc
= iwl3945_tx_queue_update_write_ptr(priv
, txq
);
2754 spin_unlock_irqrestore(&priv
->lock
, flags
);
2759 if ((iwl3945_queue_space(q
) < q
->high_mark
)
2760 && priv
->mac80211_registered
) {
2761 if (wait_write_ptr
) {
2762 spin_lock_irqsave(&priv
->lock
, flags
);
2763 txq
->need_update
= 1;
2764 iwl3945_tx_queue_update_write_ptr(priv
, txq
);
2765 spin_unlock_irqrestore(&priv
->lock
, flags
);
2768 ieee80211_stop_queue(priv
->hw
, info
->queue
);
2774 spin_unlock_irqrestore(&priv
->lock
, flags
);
2779 static void iwl3945_set_rate(struct iwl3945_priv
*priv
)
2781 const struct ieee80211_supported_band
*sband
= NULL
;
2782 struct ieee80211_rate
*rate
;
2785 sband
= iwl3945_get_band(priv
, priv
->band
);
2787 IWL_ERROR("Failed to set rate: unable to get hw mode\n");
2791 priv
->active_rate
= 0;
2792 priv
->active_rate_basic
= 0;
2794 IWL_DEBUG_RATE("Setting rates for %s GHz\n",
2795 sband
->band
== IEEE80211_BAND_2GHZ
? "2.4" : "5");
2797 for (i
= 0; i
< sband
->n_bitrates
; i
++) {
2798 rate
= &sband
->bitrates
[i
];
2799 if ((rate
->hw_value
< IWL_RATE_COUNT
) &&
2800 !(rate
->flags
& IEEE80211_CHAN_DISABLED
)) {
2801 IWL_DEBUG_RATE("Adding rate index %d (plcp %d)\n",
2802 rate
->hw_value
, iwl3945_rates
[rate
->hw_value
].plcp
);
2803 priv
->active_rate
|= (1 << rate
->hw_value
);
2807 IWL_DEBUG_RATE("Set active_rate = %0x, active_rate_basic = %0x\n",
2808 priv
->active_rate
, priv
->active_rate_basic
);
2811 * If a basic rate is configured, then use it (adding IWL_RATE_1M_MASK)
2812 * otherwise set it to the default of all CCK rates and 6, 12, 24 for
2815 if (priv
->active_rate_basic
& IWL_CCK_BASIC_RATES_MASK
)
2816 priv
->staging_rxon
.cck_basic_rates
=
2817 ((priv
->active_rate_basic
&
2818 IWL_CCK_RATES_MASK
) >> IWL_FIRST_CCK_RATE
) & 0xF;
2820 priv
->staging_rxon
.cck_basic_rates
=
2821 (IWL_CCK_BASIC_RATES_MASK
>> IWL_FIRST_CCK_RATE
) & 0xF;
2823 if (priv
->active_rate_basic
& IWL_OFDM_BASIC_RATES_MASK
)
2824 priv
->staging_rxon
.ofdm_basic_rates
=
2825 ((priv
->active_rate_basic
&
2826 (IWL_OFDM_BASIC_RATES_MASK
| IWL_RATE_6M_MASK
)) >>
2827 IWL_FIRST_OFDM_RATE
) & 0xFF;
2829 priv
->staging_rxon
.ofdm_basic_rates
=
2830 (IWL_OFDM_BASIC_RATES_MASK
>> IWL_FIRST_OFDM_RATE
) & 0xFF;
2833 static void iwl3945_radio_kill_sw(struct iwl3945_priv
*priv
, int disable_radio
)
2835 unsigned long flags
;
2837 if (!!disable_radio
== test_bit(STATUS_RF_KILL_SW
, &priv
->status
))
2840 IWL_DEBUG_RF_KILL("Manual SW RF KILL set to: RADIO %s\n",
2841 disable_radio
? "OFF" : "ON");
2843 if (disable_radio
) {
2844 iwl3945_scan_cancel(priv
);
2845 /* FIXME: This is a workaround for AP */
2846 if (priv
->iw_mode
!= IEEE80211_IF_TYPE_AP
) {
2847 spin_lock_irqsave(&priv
->lock
, flags
);
2848 iwl3945_write32(priv
, CSR_UCODE_DRV_GP1_SET
,
2849 CSR_UCODE_SW_BIT_RFKILL
);
2850 spin_unlock_irqrestore(&priv
->lock
, flags
);
2851 iwl3945_send_card_state(priv
, CARD_STATE_CMD_DISABLE
, 0);
2852 set_bit(STATUS_RF_KILL_SW
, &priv
->status
);
2857 spin_lock_irqsave(&priv
->lock
, flags
);
2858 iwl3945_write32(priv
, CSR_UCODE_DRV_GP1_CLR
, CSR_UCODE_SW_BIT_RFKILL
);
2860 clear_bit(STATUS_RF_KILL_SW
, &priv
->status
);
2861 spin_unlock_irqrestore(&priv
->lock
, flags
);
2866 spin_lock_irqsave(&priv
->lock
, flags
);
2867 iwl3945_read32(priv
, CSR_UCODE_DRV_GP1
);
2868 if (!iwl3945_grab_nic_access(priv
))
2869 iwl3945_release_nic_access(priv
);
2870 spin_unlock_irqrestore(&priv
->lock
, flags
);
2872 if (test_bit(STATUS_RF_KILL_HW
, &priv
->status
)) {
2873 IWL_DEBUG_RF_KILL("Can not turn radio back on - "
2874 "disabled by HW switch\n");
2878 queue_work(priv
->workqueue
, &priv
->restart
);
2882 void iwl3945_set_decrypted_flag(struct iwl3945_priv
*priv
, struct sk_buff
*skb
,
2883 u32 decrypt_res
, struct ieee80211_rx_status
*stats
)
2886 le16_to_cpu(((struct ieee80211_hdr
*)skb
->data
)->frame_control
);
2888 if (priv
->active_rxon
.filter_flags
& RXON_FILTER_DIS_DECRYPT_MSK
)
2891 if (!(fc
& IEEE80211_FCTL_PROTECTED
))
2894 IWL_DEBUG_RX("decrypt_res:0x%x\n", decrypt_res
);
2895 switch (decrypt_res
& RX_RES_STATUS_SEC_TYPE_MSK
) {
2896 case RX_RES_STATUS_SEC_TYPE_TKIP
:
2897 if ((decrypt_res
& RX_RES_STATUS_DECRYPT_TYPE_MSK
) ==
2898 RX_RES_STATUS_BAD_ICV_MIC
)
2899 stats
->flag
|= RX_FLAG_MMIC_ERROR
;
2900 case RX_RES_STATUS_SEC_TYPE_WEP
:
2901 case RX_RES_STATUS_SEC_TYPE_CCMP
:
2902 if ((decrypt_res
& RX_RES_STATUS_DECRYPT_TYPE_MSK
) ==
2903 RX_RES_STATUS_DECRYPT_OK
) {
2904 IWL_DEBUG_RX("hw decrypt successfully!!!\n");
2905 stats
->flag
|= RX_FLAG_DECRYPTED
;
2914 #define IWL_PACKET_RETRY_TIME HZ
2916 int iwl3945_is_duplicate_packet(struct iwl3945_priv
*priv
, struct ieee80211_hdr
*header
)
2918 u16 sc
= le16_to_cpu(header
->seq_ctrl
);
2919 u16 seq
= (sc
& IEEE80211_SCTL_SEQ
) >> 4;
2920 u16 frag
= sc
& IEEE80211_SCTL_FRAG
;
2921 u16
*last_seq
, *last_frag
;
2922 unsigned long *last_time
;
2924 switch (priv
->iw_mode
) {
2925 case IEEE80211_IF_TYPE_IBSS
:{
2926 struct list_head
*p
;
2927 struct iwl3945_ibss_seq
*entry
= NULL
;
2928 u8
*mac
= header
->addr2
;
2929 int index
= mac
[5] & (IWL_IBSS_MAC_HASH_SIZE
- 1);
2931 __list_for_each(p
, &priv
->ibss_mac_hash
[index
]) {
2932 entry
= list_entry(p
, struct iwl3945_ibss_seq
, list
);
2933 if (!compare_ether_addr(entry
->mac
, mac
))
2936 if (p
== &priv
->ibss_mac_hash
[index
]) {
2937 entry
= kzalloc(sizeof(*entry
), GFP_ATOMIC
);
2939 IWL_ERROR("Cannot malloc new mac entry\n");
2942 memcpy(entry
->mac
, mac
, ETH_ALEN
);
2943 entry
->seq_num
= seq
;
2944 entry
->frag_num
= frag
;
2945 entry
->packet_time
= jiffies
;
2946 list_add(&entry
->list
, &priv
->ibss_mac_hash
[index
]);
2949 last_seq
= &entry
->seq_num
;
2950 last_frag
= &entry
->frag_num
;
2951 last_time
= &entry
->packet_time
;
2954 case IEEE80211_IF_TYPE_STA
:
2955 last_seq
= &priv
->last_seq_num
;
2956 last_frag
= &priv
->last_frag_num
;
2957 last_time
= &priv
->last_packet_time
;
2962 if ((*last_seq
== seq
) &&
2963 time_after(*last_time
+ IWL_PACKET_RETRY_TIME
, jiffies
)) {
2964 if (*last_frag
== frag
)
2966 if (*last_frag
+ 1 != frag
)
2967 /* out-of-order fragment */
2973 *last_time
= jiffies
;
2980 #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT
2982 #include "iwl-spectrum.h"
2984 #define BEACON_TIME_MASK_LOW 0x00FFFFFF
2985 #define BEACON_TIME_MASK_HIGH 0xFF000000
2986 #define TIME_UNIT 1024
2989 * extended beacon time format
2990 * time in usec will be changed into a 32-bit value in 8:24 format
2991 * the high 1 byte is the beacon counts
2992 * the lower 3 bytes is the time in usec within one beacon interval
2995 static u32
iwl3945_usecs_to_beacons(u32 usec
, u32 beacon_interval
)
2999 u32 interval
= beacon_interval
* 1024;
3001 if (!interval
|| !usec
)
3004 quot
= (usec
/ interval
) & (BEACON_TIME_MASK_HIGH
>> 24);
3005 rem
= (usec
% interval
) & BEACON_TIME_MASK_LOW
;
3007 return (quot
<< 24) + rem
;
3010 /* base is usually what we get from ucode with each received frame,
3011 * the same as HW timer counter counting down
3014 static __le32
iwl3945_add_beacon_time(u32 base
, u32 addon
, u32 beacon_interval
)
3016 u32 base_low
= base
& BEACON_TIME_MASK_LOW
;
3017 u32 addon_low
= addon
& BEACON_TIME_MASK_LOW
;
3018 u32 interval
= beacon_interval
* TIME_UNIT
;
3019 u32 res
= (base
& BEACON_TIME_MASK_HIGH
) +
3020 (addon
& BEACON_TIME_MASK_HIGH
);
3022 if (base_low
> addon_low
)
3023 res
+= base_low
- addon_low
;
3024 else if (base_low
< addon_low
) {
3025 res
+= interval
+ base_low
- addon_low
;
3030 return cpu_to_le32(res
);
3033 static int iwl3945_get_measurement(struct iwl3945_priv
*priv
,
3034 struct ieee80211_measurement_params
*params
,
3037 struct iwl3945_spectrum_cmd spectrum
;
3038 struct iwl3945_rx_packet
*res
;
3039 struct iwl3945_host_cmd cmd
= {
3040 .id
= REPLY_SPECTRUM_MEASUREMENT_CMD
,
3041 .data
= (void *)&spectrum
,
3042 .meta
.flags
= CMD_WANT_SKB
,
3044 u32 add_time
= le64_to_cpu(params
->start_time
);
3046 int spectrum_resp_status
;
3047 int duration
= le16_to_cpu(params
->duration
);
3049 if (iwl3945_is_associated(priv
))
3051 iwl3945_usecs_to_beacons(
3052 le64_to_cpu(params
->start_time
) - priv
->last_tsf
,
3053 le16_to_cpu(priv
->rxon_timing
.beacon_interval
));
3055 memset(&spectrum
, 0, sizeof(spectrum
));
3057 spectrum
.channel_count
= cpu_to_le16(1);
3059 RXON_FLG_TSF2HOST_MSK
| RXON_FLG_ANT_A_MSK
| RXON_FLG_DIS_DIV_MSK
;
3060 spectrum
.filter_flags
= MEASUREMENT_FILTER_FLAG
;
3061 cmd
.len
= sizeof(spectrum
);
3062 spectrum
.len
= cpu_to_le16(cmd
.len
- sizeof(spectrum
.len
));
3064 if (iwl3945_is_associated(priv
))
3065 spectrum
.start_time
=
3066 iwl3945_add_beacon_time(priv
->last_beacon_time
,
3068 le16_to_cpu(priv
->rxon_timing
.beacon_interval
));
3070 spectrum
.start_time
= 0;
3072 spectrum
.channels
[0].duration
= cpu_to_le32(duration
* TIME_UNIT
);
3073 spectrum
.channels
[0].channel
= params
->channel
;
3074 spectrum
.channels
[0].type
= type
;
3075 if (priv
->active_rxon
.flags
& RXON_FLG_BAND_24G_MSK
)
3076 spectrum
.flags
|= RXON_FLG_BAND_24G_MSK
|
3077 RXON_FLG_AUTO_DETECT_MSK
| RXON_FLG_TGG_PROTECT_MSK
;
3079 rc
= iwl3945_send_cmd_sync(priv
, &cmd
);
3083 res
= (struct iwl3945_rx_packet
*)cmd
.meta
.u
.skb
->data
;
3084 if (res
->hdr
.flags
& IWL_CMD_FAILED_MSK
) {
3085 IWL_ERROR("Bad return from REPLY_RX_ON_ASSOC command\n");
3089 spectrum_resp_status
= le16_to_cpu(res
->u
.spectrum
.status
);
3090 switch (spectrum_resp_status
) {
3091 case 0: /* Command will be handled */
3092 if (res
->u
.spectrum
.id
!= 0xff) {
3093 IWL_DEBUG_INFO("Replaced existing measurement: %d\n",
3094 res
->u
.spectrum
.id
);
3095 priv
->measurement_status
&= ~MEASUREMENT_READY
;
3097 priv
->measurement_status
|= MEASUREMENT_ACTIVE
;
3101 case 1: /* Command will not be handled */
3106 dev_kfree_skb_any(cmd
.meta
.u
.skb
);
3112 static void iwl3945_rx_reply_alive(struct iwl3945_priv
*priv
,
3113 struct iwl3945_rx_mem_buffer
*rxb
)
3115 struct iwl3945_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3116 struct iwl3945_alive_resp
*palive
;
3117 struct delayed_work
*pwork
;
3119 palive
= &pkt
->u
.alive_frame
;
3121 IWL_DEBUG_INFO("Alive ucode status 0x%08X revision "
3123 palive
->is_valid
, palive
->ver_type
,
3124 palive
->ver_subtype
);
3126 if (palive
->ver_subtype
== INITIALIZE_SUBTYPE
) {
3127 IWL_DEBUG_INFO("Initialization Alive received.\n");
3128 memcpy(&priv
->card_alive_init
,
3129 &pkt
->u
.alive_frame
,
3130 sizeof(struct iwl3945_init_alive_resp
));
3131 pwork
= &priv
->init_alive_start
;
3133 IWL_DEBUG_INFO("Runtime Alive received.\n");
3134 memcpy(&priv
->card_alive
, &pkt
->u
.alive_frame
,
3135 sizeof(struct iwl3945_alive_resp
));
3136 pwork
= &priv
->alive_start
;
3137 iwl3945_disable_events(priv
);
3140 /* We delay the ALIVE response by 5ms to
3141 * give the HW RF Kill time to activate... */
3142 if (palive
->is_valid
== UCODE_VALID_OK
)
3143 queue_delayed_work(priv
->workqueue
, pwork
,
3144 msecs_to_jiffies(5));
3146 IWL_WARNING("uCode did not respond OK.\n");
3149 static void iwl3945_rx_reply_add_sta(struct iwl3945_priv
*priv
,
3150 struct iwl3945_rx_mem_buffer
*rxb
)
3152 struct iwl3945_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3154 IWL_DEBUG_RX("Received REPLY_ADD_STA: 0x%02X\n", pkt
->u
.status
);
3158 static void iwl3945_rx_reply_error(struct iwl3945_priv
*priv
,
3159 struct iwl3945_rx_mem_buffer
*rxb
)
3161 struct iwl3945_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3163 IWL_ERROR("Error Reply type 0x%08X cmd %s (0x%02X) "
3164 "seq 0x%04X ser 0x%08X\n",
3165 le32_to_cpu(pkt
->u
.err_resp
.error_type
),
3166 get_cmd_string(pkt
->u
.err_resp
.cmd_id
),
3167 pkt
->u
.err_resp
.cmd_id
,
3168 le16_to_cpu(pkt
->u
.err_resp
.bad_cmd_seq_num
),
3169 le32_to_cpu(pkt
->u
.err_resp
.error_info
));
3172 #define TX_STATUS_ENTRY(x) case TX_STATUS_FAIL_ ## x: return #x
3174 static void iwl3945_rx_csa(struct iwl3945_priv
*priv
, struct iwl3945_rx_mem_buffer
*rxb
)
3176 struct iwl3945_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3177 struct iwl3945_rxon_cmd
*rxon
= (void *)&priv
->active_rxon
;
3178 struct iwl3945_csa_notification
*csa
= &(pkt
->u
.csa_notif
);
3179 IWL_DEBUG_11H("CSA notif: channel %d, status %d\n",
3180 le16_to_cpu(csa
->channel
), le32_to_cpu(csa
->status
));
3181 rxon
->channel
= csa
->channel
;
3182 priv
->staging_rxon
.channel
= csa
->channel
;
3185 static void iwl3945_rx_spectrum_measure_notif(struct iwl3945_priv
*priv
,
3186 struct iwl3945_rx_mem_buffer
*rxb
)
3188 #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT
3189 struct iwl3945_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3190 struct iwl3945_spectrum_notification
*report
= &(pkt
->u
.spectrum_notif
);
3192 if (!report
->state
) {
3193 IWL_DEBUG(IWL_DL_11H
| IWL_DL_INFO
,
3194 "Spectrum Measure Notification: Start\n");
3198 memcpy(&priv
->measure_report
, report
, sizeof(*report
));
3199 priv
->measurement_status
|= MEASUREMENT_READY
;
3203 static void iwl3945_rx_pm_sleep_notif(struct iwl3945_priv
*priv
,
3204 struct iwl3945_rx_mem_buffer
*rxb
)
3206 #ifdef CONFIG_IWL3945_DEBUG
3207 struct iwl3945_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3208 struct iwl3945_sleep_notification
*sleep
= &(pkt
->u
.sleep_notif
);
3209 IWL_DEBUG_RX("sleep mode: %d, src: %d\n",
3210 sleep
->pm_sleep_mode
, sleep
->pm_wakeup_src
);
3214 static void iwl3945_rx_pm_debug_statistics_notif(struct iwl3945_priv
*priv
,
3215 struct iwl3945_rx_mem_buffer
*rxb
)
3217 struct iwl3945_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3218 IWL_DEBUG_RADIO("Dumping %d bytes of unhandled "
3219 "notification for %s:\n",
3220 le32_to_cpu(pkt
->len
), get_cmd_string(pkt
->hdr
.cmd
));
3221 iwl3945_print_hex_dump(IWL_DL_RADIO
, pkt
->u
.raw
, le32_to_cpu(pkt
->len
));
3224 static void iwl3945_bg_beacon_update(struct work_struct
*work
)
3226 struct iwl3945_priv
*priv
=
3227 container_of(work
, struct iwl3945_priv
, beacon_update
);
3228 struct sk_buff
*beacon
;
3230 /* Pull updated AP beacon from mac80211. will fail if not in AP mode */
3231 beacon
= ieee80211_beacon_get(priv
->hw
, priv
->vif
);
3234 IWL_ERROR("update beacon failed\n");
3238 mutex_lock(&priv
->mutex
);
3239 /* new beacon skb is allocated every time; dispose previous.*/
3240 if (priv
->ibss_beacon
)
3241 dev_kfree_skb(priv
->ibss_beacon
);
3243 priv
->ibss_beacon
= beacon
;
3244 mutex_unlock(&priv
->mutex
);
3246 iwl3945_send_beacon_cmd(priv
);
3249 static void iwl3945_rx_beacon_notif(struct iwl3945_priv
*priv
,
3250 struct iwl3945_rx_mem_buffer
*rxb
)
3252 #ifdef CONFIG_IWL3945_DEBUG
3253 struct iwl3945_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3254 struct iwl3945_beacon_notif
*beacon
= &(pkt
->u
.beacon_status
);
3255 u8 rate
= beacon
->beacon_notify_hdr
.rate
;
3257 IWL_DEBUG_RX("beacon status %x retries %d iss %d "
3258 "tsf %d %d rate %d\n",
3259 le32_to_cpu(beacon
->beacon_notify_hdr
.status
) & TX_STATUS_MSK
,
3260 beacon
->beacon_notify_hdr
.failure_frame
,
3261 le32_to_cpu(beacon
->ibss_mgr_status
),
3262 le32_to_cpu(beacon
->high_tsf
),
3263 le32_to_cpu(beacon
->low_tsf
), rate
);
3266 if ((priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) &&
3267 (!test_bit(STATUS_EXIT_PENDING
, &priv
->status
)))
3268 queue_work(priv
->workqueue
, &priv
->beacon_update
);
3271 /* Service response to REPLY_SCAN_CMD (0x80) */
3272 static void iwl3945_rx_reply_scan(struct iwl3945_priv
*priv
,
3273 struct iwl3945_rx_mem_buffer
*rxb
)
3275 #ifdef CONFIG_IWL3945_DEBUG
3276 struct iwl3945_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3277 struct iwl3945_scanreq_notification
*notif
=
3278 (struct iwl3945_scanreq_notification
*)pkt
->u
.raw
;
3280 IWL_DEBUG_RX("Scan request status = 0x%x\n", notif
->status
);
3284 /* Service SCAN_START_NOTIFICATION (0x82) */
3285 static void iwl3945_rx_scan_start_notif(struct iwl3945_priv
*priv
,
3286 struct iwl3945_rx_mem_buffer
*rxb
)
3288 struct iwl3945_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3289 struct iwl3945_scanstart_notification
*notif
=
3290 (struct iwl3945_scanstart_notification
*)pkt
->u
.raw
;
3291 priv
->scan_start_tsf
= le32_to_cpu(notif
->tsf_low
);
3292 IWL_DEBUG_SCAN("Scan start: "
3294 "(TSF: 0x%08X:%08X) - %d (beacon timer %u)\n",
3296 notif
->band
? "bg" : "a",
3298 notif
->tsf_low
, notif
->status
, notif
->beacon_timer
);
3301 /* Service SCAN_RESULTS_NOTIFICATION (0x83) */
3302 static void iwl3945_rx_scan_results_notif(struct iwl3945_priv
*priv
,
3303 struct iwl3945_rx_mem_buffer
*rxb
)
3305 struct iwl3945_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3306 struct iwl3945_scanresults_notification
*notif
=
3307 (struct iwl3945_scanresults_notification
*)pkt
->u
.raw
;
3309 IWL_DEBUG_SCAN("Scan ch.res: "
3311 "(TSF: 0x%08X:%08X) - %d "
3312 "elapsed=%lu usec (%dms since last)\n",
3314 notif
->band
? "bg" : "a",
3315 le32_to_cpu(notif
->tsf_high
),
3316 le32_to_cpu(notif
->tsf_low
),
3317 le32_to_cpu(notif
->statistics
[0]),
3318 le32_to_cpu(notif
->tsf_low
) - priv
->scan_start_tsf
,
3319 jiffies_to_msecs(elapsed_jiffies
3320 (priv
->last_scan_jiffies
, jiffies
)));
3322 priv
->last_scan_jiffies
= jiffies
;
3323 priv
->next_scan_jiffies
= 0;
3326 /* Service SCAN_COMPLETE_NOTIFICATION (0x84) */
3327 static void iwl3945_rx_scan_complete_notif(struct iwl3945_priv
*priv
,
3328 struct iwl3945_rx_mem_buffer
*rxb
)
3330 struct iwl3945_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3331 struct iwl3945_scancomplete_notification
*scan_notif
= (void *)pkt
->u
.raw
;
3333 IWL_DEBUG_SCAN("Scan complete: %d channels (TSF 0x%08X:%08X) - %d\n",
3334 scan_notif
->scanned_channels
,
3335 scan_notif
->tsf_low
,
3336 scan_notif
->tsf_high
, scan_notif
->status
);
3338 /* The HW is no longer scanning */
3339 clear_bit(STATUS_SCAN_HW
, &priv
->status
);
3341 /* The scan completion notification came in, so kill that timer... */
3342 cancel_delayed_work(&priv
->scan_check
);
3344 IWL_DEBUG_INFO("Scan pass on %sGHz took %dms\n",
3345 (priv
->scan_bands
== 2) ? "2.4" : "5.2",
3346 jiffies_to_msecs(elapsed_jiffies
3347 (priv
->scan_pass_start
, jiffies
)));
3349 /* Remove this scanned band from the list
3350 * of pending bands to scan */
3353 /* If a request to abort was given, or the scan did not succeed
3354 * then we reset the scan state machine and terminate,
3355 * re-queuing another scan if one has been requested */
3356 if (test_bit(STATUS_SCAN_ABORTING
, &priv
->status
)) {
3357 IWL_DEBUG_INFO("Aborted scan completed.\n");
3358 clear_bit(STATUS_SCAN_ABORTING
, &priv
->status
);
3360 /* If there are more bands on this scan pass reschedule */
3361 if (priv
->scan_bands
> 0)
3365 priv
->last_scan_jiffies
= jiffies
;
3366 priv
->next_scan_jiffies
= 0;
3367 IWL_DEBUG_INFO("Setting scan to off\n");
3369 clear_bit(STATUS_SCANNING
, &priv
->status
);
3371 IWL_DEBUG_INFO("Scan took %dms\n",
3372 jiffies_to_msecs(elapsed_jiffies(priv
->scan_start
, jiffies
)));
3374 queue_work(priv
->workqueue
, &priv
->scan_completed
);
3379 priv
->scan_pass_start
= jiffies
;
3380 queue_work(priv
->workqueue
, &priv
->request_scan
);
3383 /* Handle notification from uCode that card's power state is changing
3384 * due to software, hardware, or critical temperature RFKILL */
3385 static void iwl3945_rx_card_state_notif(struct iwl3945_priv
*priv
,
3386 struct iwl3945_rx_mem_buffer
*rxb
)
3388 struct iwl3945_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3389 u32 flags
= le32_to_cpu(pkt
->u
.card_state_notif
.flags
);
3390 unsigned long status
= priv
->status
;
3392 IWL_DEBUG_RF_KILL("Card state received: HW:%s SW:%s\n",
3393 (flags
& HW_CARD_DISABLED
) ? "Kill" : "On",
3394 (flags
& SW_CARD_DISABLED
) ? "Kill" : "On");
3396 iwl3945_write32(priv
, CSR_UCODE_DRV_GP1_SET
,
3397 CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED
);
3399 if (flags
& HW_CARD_DISABLED
)
3400 set_bit(STATUS_RF_KILL_HW
, &priv
->status
);
3402 clear_bit(STATUS_RF_KILL_HW
, &priv
->status
);
3405 if (flags
& SW_CARD_DISABLED
)
3406 set_bit(STATUS_RF_KILL_SW
, &priv
->status
);
3408 clear_bit(STATUS_RF_KILL_SW
, &priv
->status
);
3410 iwl3945_scan_cancel(priv
);
3412 if ((test_bit(STATUS_RF_KILL_HW
, &status
) !=
3413 test_bit(STATUS_RF_KILL_HW
, &priv
->status
)) ||
3414 (test_bit(STATUS_RF_KILL_SW
, &status
) !=
3415 test_bit(STATUS_RF_KILL_SW
, &priv
->status
)))
3416 queue_work(priv
->workqueue
, &priv
->rf_kill
);
3418 wake_up_interruptible(&priv
->wait_command_queue
);
3422 * iwl3945_setup_rx_handlers - Initialize Rx handler callbacks
3424 * Setup the RX handlers for each of the reply types sent from the uCode
3427 * This function chains into the hardware specific files for them to setup
3428 * any hardware specific handlers as well.
3430 static void iwl3945_setup_rx_handlers(struct iwl3945_priv
*priv
)
3432 priv
->rx_handlers
[REPLY_ALIVE
] = iwl3945_rx_reply_alive
;
3433 priv
->rx_handlers
[REPLY_ADD_STA
] = iwl3945_rx_reply_add_sta
;
3434 priv
->rx_handlers
[REPLY_ERROR
] = iwl3945_rx_reply_error
;
3435 priv
->rx_handlers
[CHANNEL_SWITCH_NOTIFICATION
] = iwl3945_rx_csa
;
3436 priv
->rx_handlers
[SPECTRUM_MEASURE_NOTIFICATION
] =
3437 iwl3945_rx_spectrum_measure_notif
;
3438 priv
->rx_handlers
[PM_SLEEP_NOTIFICATION
] = iwl3945_rx_pm_sleep_notif
;
3439 priv
->rx_handlers
[PM_DEBUG_STATISTIC_NOTIFIC
] =
3440 iwl3945_rx_pm_debug_statistics_notif
;
3441 priv
->rx_handlers
[BEACON_NOTIFICATION
] = iwl3945_rx_beacon_notif
;
3444 * The same handler is used for both the REPLY to a discrete
3445 * statistics request from the host as well as for the periodic
3446 * statistics notifications (after received beacons) from the uCode.
3448 priv
->rx_handlers
[REPLY_STATISTICS_CMD
] = iwl3945_hw_rx_statistics
;
3449 priv
->rx_handlers
[STATISTICS_NOTIFICATION
] = iwl3945_hw_rx_statistics
;
3451 priv
->rx_handlers
[REPLY_SCAN_CMD
] = iwl3945_rx_reply_scan
;
3452 priv
->rx_handlers
[SCAN_START_NOTIFICATION
] = iwl3945_rx_scan_start_notif
;
3453 priv
->rx_handlers
[SCAN_RESULTS_NOTIFICATION
] =
3454 iwl3945_rx_scan_results_notif
;
3455 priv
->rx_handlers
[SCAN_COMPLETE_NOTIFICATION
] =
3456 iwl3945_rx_scan_complete_notif
;
3457 priv
->rx_handlers
[CARD_STATE_NOTIFICATION
] = iwl3945_rx_card_state_notif
;
3459 /* Set up hardware specific Rx handlers */
3460 iwl3945_hw_rx_handler_setup(priv
);
3464 * iwl3945_cmd_queue_reclaim - Reclaim CMD queue entries
3465 * When FW advances 'R' index, all entries between old and new 'R' index
3466 * need to be reclaimed.
3468 static void iwl3945_cmd_queue_reclaim(struct iwl3945_priv
*priv
,
3469 int txq_id
, int index
)
3471 struct iwl3945_tx_queue
*txq
= &priv
->txq
[txq_id
];
3472 struct iwl3945_queue
*q
= &txq
->q
;
3475 if ((index
>= q
->n_bd
) || (iwl3945_x2_queue_used(q
, index
) == 0)) {
3476 IWL_ERROR("Read index for DMA queue txq id (%d), index %d, "
3477 "is out of range [0-%d] %d %d.\n", txq_id
,
3478 index
, q
->n_bd
, q
->write_ptr
, q
->read_ptr
);
3482 for (index
= iwl_queue_inc_wrap(index
, q
->n_bd
); q
->read_ptr
!= index
;
3483 q
->read_ptr
= iwl_queue_inc_wrap(q
->read_ptr
, q
->n_bd
)) {
3485 IWL_ERROR("HCMD skipped: index (%d) %d %d\n", index
,
3486 q
->write_ptr
, q
->read_ptr
);
3487 queue_work(priv
->workqueue
, &priv
->restart
);
3496 * iwl3945_tx_cmd_complete - Pull unused buffers off the queue and reclaim them
3497 * @rxb: Rx buffer to reclaim
3499 * If an Rx buffer has an async callback associated with it the callback
3500 * will be executed. The attached skb (if present) will only be freed
3501 * if the callback returns 1
3503 static void iwl3945_tx_cmd_complete(struct iwl3945_priv
*priv
,
3504 struct iwl3945_rx_mem_buffer
*rxb
)
3506 struct iwl3945_rx_packet
*pkt
= (struct iwl3945_rx_packet
*)rxb
->skb
->data
;
3507 u16 sequence
= le16_to_cpu(pkt
->hdr
.sequence
);
3508 int txq_id
= SEQ_TO_QUEUE(sequence
);
3509 int index
= SEQ_TO_INDEX(sequence
);
3510 int huge
= sequence
& SEQ_HUGE_FRAME
;
3512 struct iwl3945_cmd
*cmd
;
3514 BUG_ON(txq_id
!= IWL_CMD_QUEUE_NUM
);
3516 cmd_index
= get_cmd_index(&priv
->txq
[IWL_CMD_QUEUE_NUM
].q
, index
, huge
);
3517 cmd
= &priv
->txq
[IWL_CMD_QUEUE_NUM
].cmd
[cmd_index
];
3519 /* Input error checking is done when commands are added to queue. */
3520 if (cmd
->meta
.flags
& CMD_WANT_SKB
) {
3521 cmd
->meta
.source
->u
.skb
= rxb
->skb
;
3523 } else if (cmd
->meta
.u
.callback
&&
3524 !cmd
->meta
.u
.callback(priv
, cmd
, rxb
->skb
))
3527 iwl3945_cmd_queue_reclaim(priv
, txq_id
, index
);
3529 if (!(cmd
->meta
.flags
& CMD_ASYNC
)) {
3530 clear_bit(STATUS_HCMD_ACTIVE
, &priv
->status
);
3531 wake_up_interruptible(&priv
->wait_command_queue
);
3535 /************************** RX-FUNCTIONS ****************************/
3537 * Rx theory of operation
3539 * The host allocates 32 DMA target addresses and passes the host address
3540 * to the firmware at register IWL_RFDS_TABLE_LOWER + N * RFD_SIZE where N is
3544 * The host/firmware share two index registers for managing the Rx buffers.
3546 * The READ index maps to the first position that the firmware may be writing
3547 * to -- the driver can read up to (but not including) this position and get
3549 * The READ index is managed by the firmware once the card is enabled.
3551 * The WRITE index maps to the last position the driver has read from -- the
3552 * position preceding WRITE is the last slot the firmware can place a packet.
3554 * The queue is empty (no good data) if WRITE = READ - 1, and is full if
3557 * During initialization, the host sets up the READ queue position to the first
3558 * INDEX position, and WRITE to the last (READ - 1 wrapped)
3560 * When the firmware places a packet in a buffer, it will advance the READ index
3561 * and fire the RX interrupt. The driver can then query the READ index and
3562 * process as many packets as possible, moving the WRITE index forward as it
3563 * resets the Rx queue buffers with new memory.
3565 * The management in the driver is as follows:
3566 * + A list of pre-allocated SKBs is stored in iwl->rxq->rx_free. When
3567 * iwl->rxq->free_count drops to or below RX_LOW_WATERMARK, work is scheduled
3568 * to replenish the iwl->rxq->rx_free.
3569 * + In iwl3945_rx_replenish (scheduled) if 'processed' != 'read' then the
3570 * iwl->rxq is replenished and the READ INDEX is updated (updating the
3571 * 'processed' and 'read' driver indexes as well)
3572 * + A received packet is processed and handed to the kernel network stack,
3573 * detached from the iwl->rxq. The driver 'processed' index is updated.
3574 * + The Host/Firmware iwl->rxq is replenished at tasklet time from the rx_free
3575 * list. If there are no allocated buffers in iwl->rxq->rx_free, the READ
3576 * INDEX is not incremented and iwl->status(RX_STALLED) is set. If there
3577 * were enough free buffers and RX_STALLED is set it is cleared.
3582 * iwl3945_rx_queue_alloc() Allocates rx_free
3583 * iwl3945_rx_replenish() Replenishes rx_free list from rx_used, and calls
3584 * iwl3945_rx_queue_restock
3585 * iwl3945_rx_queue_restock() Moves available buffers from rx_free into Rx
3586 * queue, updates firmware pointers, and updates
3587 * the WRITE index. If insufficient rx_free buffers
3588 * are available, schedules iwl3945_rx_replenish
3590 * -- enable interrupts --
3591 * ISR - iwl3945_rx() Detach iwl3945_rx_mem_buffers from pool up to the
3592 * READ INDEX, detaching the SKB from the pool.
3593 * Moves the packet buffer from queue to rx_used.
3594 * Calls iwl3945_rx_queue_restock to refill any empty
3601 * iwl3945_rx_queue_space - Return number of free slots available in queue.
3603 static int iwl3945_rx_queue_space(const struct iwl3945_rx_queue
*q
)
3605 int s
= q
->read
- q
->write
;
3608 /* keep some buffer to not confuse full and empty queue */
3616 * iwl3945_rx_queue_update_write_ptr - Update the write pointer for the RX queue
3618 int iwl3945_rx_queue_update_write_ptr(struct iwl3945_priv
*priv
, struct iwl3945_rx_queue
*q
)
3622 unsigned long flags
;
3624 spin_lock_irqsave(&q
->lock
, flags
);
3626 if (q
->need_update
== 0)
3629 /* If power-saving is in use, make sure device is awake */
3630 if (test_bit(STATUS_POWER_PMI
, &priv
->status
)) {
3631 reg
= iwl3945_read32(priv
, CSR_UCODE_DRV_GP1
);
3633 if (reg
& CSR_UCODE_DRV_GP1_BIT_MAC_SLEEP
) {
3634 iwl3945_set_bit(priv
, CSR_GP_CNTRL
,
3635 CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ
);
3639 rc
= iwl3945_grab_nic_access(priv
);
3643 /* Device expects a multiple of 8 */
3644 iwl3945_write_direct32(priv
, FH_RSCSR_CHNL0_WPTR
,
3646 iwl3945_release_nic_access(priv
);
3648 /* Else device is assumed to be awake */
3650 /* Device expects a multiple of 8 */
3651 iwl3945_write32(priv
, FH_RSCSR_CHNL0_WPTR
, q
->write
& ~0x7);
3657 spin_unlock_irqrestore(&q
->lock
, flags
);
3662 * iwl3945_dma_addr2rbd_ptr - convert a DMA address to a uCode read buffer ptr
3664 static inline __le32
iwl3945_dma_addr2rbd_ptr(struct iwl3945_priv
*priv
,
3665 dma_addr_t dma_addr
)
3667 return cpu_to_le32((u32
)dma_addr
);
3671 * iwl3945_rx_queue_restock - refill RX queue from pre-allocated pool
3673 * If there are slots in the RX queue that need to be restocked,
3674 * and we have free pre-allocated buffers, fill the ranks as much
3675 * as we can, pulling from rx_free.
3677 * This moves the 'write' index forward to catch up with 'processed', and
3678 * also updates the memory address in the firmware to reference the new
3681 static int iwl3945_rx_queue_restock(struct iwl3945_priv
*priv
)
3683 struct iwl3945_rx_queue
*rxq
= &priv
->rxq
;
3684 struct list_head
*element
;
3685 struct iwl3945_rx_mem_buffer
*rxb
;
3686 unsigned long flags
;
3689 spin_lock_irqsave(&rxq
->lock
, flags
);
3690 write
= rxq
->write
& ~0x7;
3691 while ((iwl3945_rx_queue_space(rxq
) > 0) && (rxq
->free_count
)) {
3692 /* Get next free Rx buffer, remove from free list */
3693 element
= rxq
->rx_free
.next
;
3694 rxb
= list_entry(element
, struct iwl3945_rx_mem_buffer
, list
);
3697 /* Point to Rx buffer via next RBD in circular buffer */
3698 rxq
->bd
[rxq
->write
] = iwl3945_dma_addr2rbd_ptr(priv
, rxb
->dma_addr
);
3699 rxq
->queue
[rxq
->write
] = rxb
;
3700 rxq
->write
= (rxq
->write
+ 1) & RX_QUEUE_MASK
;
3703 spin_unlock_irqrestore(&rxq
->lock
, flags
);
3704 /* If the pre-allocated buffer pool is dropping low, schedule to
3706 if (rxq
->free_count
<= RX_LOW_WATERMARK
)
3707 queue_work(priv
->workqueue
, &priv
->rx_replenish
);
3710 /* If we've added more space for the firmware to place data, tell it.
3711 * Increment device's write pointer in multiples of 8. */
3712 if ((write
!= (rxq
->write
& ~0x7))
3713 || (abs(rxq
->write
- rxq
->read
) > 7)) {
3714 spin_lock_irqsave(&rxq
->lock
, flags
);
3715 rxq
->need_update
= 1;
3716 spin_unlock_irqrestore(&rxq
->lock
, flags
);
3717 rc
= iwl3945_rx_queue_update_write_ptr(priv
, rxq
);
3726 * iwl3945_rx_replenish - Move all used packet from rx_used to rx_free
3728 * When moving to rx_free an SKB is allocated for the slot.
3730 * Also restock the Rx queue via iwl3945_rx_queue_restock.
3731 * This is called as a scheduled work item (except for during initialization)
3733 static void iwl3945_rx_allocate(struct iwl3945_priv
*priv
)
3735 struct iwl3945_rx_queue
*rxq
= &priv
->rxq
;
3736 struct list_head
*element
;
3737 struct iwl3945_rx_mem_buffer
*rxb
;
3738 unsigned long flags
;
3739 spin_lock_irqsave(&rxq
->lock
, flags
);
3740 while (!list_empty(&rxq
->rx_used
)) {
3741 element
= rxq
->rx_used
.next
;
3742 rxb
= list_entry(element
, struct iwl3945_rx_mem_buffer
, list
);
3744 /* Alloc a new receive buffer */
3746 alloc_skb(IWL_RX_BUF_SIZE
, __GFP_NOWARN
| GFP_ATOMIC
);
3748 if (net_ratelimit())
3749 printk(KERN_CRIT DRV_NAME
3750 ": Can not allocate SKB buffers\n");
3751 /* We don't reschedule replenish work here -- we will
3752 * call the restock method and if it still needs
3753 * more buffers it will schedule replenish */
3757 /* If radiotap head is required, reserve some headroom here.
3758 * The physical head count is a variable rx_stats->phy_count.
3759 * We reserve 4 bytes here. Plus these extra bytes, the
3760 * headroom of the physical head should be enough for the
3761 * radiotap head that iwl3945 supported. See iwl3945_rt.
3763 skb_reserve(rxb
->skb
, 4);
3765 priv
->alloc_rxb_skb
++;
3768 /* Get physical address of RB/SKB */
3770 pci_map_single(priv
->pci_dev
, rxb
->skb
->data
,
3771 IWL_RX_BUF_SIZE
, PCI_DMA_FROMDEVICE
);
3772 list_add_tail(&rxb
->list
, &rxq
->rx_free
);
3775 spin_unlock_irqrestore(&rxq
->lock
, flags
);
3779 * this should be called while priv->lock is locked
3781 static void __iwl3945_rx_replenish(void *data
)
3783 struct iwl3945_priv
*priv
= data
;
3785 iwl3945_rx_allocate(priv
);
3786 iwl3945_rx_queue_restock(priv
);
3790 void iwl3945_rx_replenish(void *data
)
3792 struct iwl3945_priv
*priv
= data
;
3793 unsigned long flags
;
3795 iwl3945_rx_allocate(priv
);
3797 spin_lock_irqsave(&priv
->lock
, flags
);
3798 iwl3945_rx_queue_restock(priv
);
3799 spin_unlock_irqrestore(&priv
->lock
, flags
);
3802 /* Assumes that the skb field of the buffers in 'pool' is kept accurate.
3803 * If an SKB has been detached, the POOL needs to have its SKB set to NULL
3804 * This free routine walks the list of POOL entries and if SKB is set to
3805 * non NULL it is unmapped and freed
3807 static void iwl3945_rx_queue_free(struct iwl3945_priv
*priv
, struct iwl3945_rx_queue
*rxq
)
3810 for (i
= 0; i
< RX_QUEUE_SIZE
+ RX_FREE_BUFFERS
; i
++) {
3811 if (rxq
->pool
[i
].skb
!= NULL
) {
3812 pci_unmap_single(priv
->pci_dev
,
3813 rxq
->pool
[i
].dma_addr
,
3814 IWL_RX_BUF_SIZE
, PCI_DMA_FROMDEVICE
);
3815 dev_kfree_skb(rxq
->pool
[i
].skb
);
3819 pci_free_consistent(priv
->pci_dev
, 4 * RX_QUEUE_SIZE
, rxq
->bd
,
3824 int iwl3945_rx_queue_alloc(struct iwl3945_priv
*priv
)
3826 struct iwl3945_rx_queue
*rxq
= &priv
->rxq
;
3827 struct pci_dev
*dev
= priv
->pci_dev
;
3830 spin_lock_init(&rxq
->lock
);
3831 INIT_LIST_HEAD(&rxq
->rx_free
);
3832 INIT_LIST_HEAD(&rxq
->rx_used
);
3834 /* Alloc the circular buffer of Read Buffer Descriptors (RBDs) */
3835 rxq
->bd
= pci_alloc_consistent(dev
, 4 * RX_QUEUE_SIZE
, &rxq
->dma_addr
);
3839 /* Fill the rx_used queue with _all_ of the Rx buffers */
3840 for (i
= 0; i
< RX_FREE_BUFFERS
+ RX_QUEUE_SIZE
; i
++)
3841 list_add_tail(&rxq
->pool
[i
].list
, &rxq
->rx_used
);
3843 /* Set us so that we have processed and used all buffers, but have
3844 * not restocked the Rx queue with fresh buffers */
3845 rxq
->read
= rxq
->write
= 0;
3846 rxq
->free_count
= 0;
3847 rxq
->need_update
= 0;
3851 void iwl3945_rx_queue_reset(struct iwl3945_priv
*priv
, struct iwl3945_rx_queue
*rxq
)
3853 unsigned long flags
;
3855 spin_lock_irqsave(&rxq
->lock
, flags
);
3856 INIT_LIST_HEAD(&rxq
->rx_free
);
3857 INIT_LIST_HEAD(&rxq
->rx_used
);
3858 /* Fill the rx_used queue with _all_ of the Rx buffers */
3859 for (i
= 0; i
< RX_FREE_BUFFERS
+ RX_QUEUE_SIZE
; i
++) {
3860 /* In the reset function, these buffers may have been allocated
3861 * to an SKB, so we need to unmap and free potential storage */
3862 if (rxq
->pool
[i
].skb
!= NULL
) {
3863 pci_unmap_single(priv
->pci_dev
,
3864 rxq
->pool
[i
].dma_addr
,
3865 IWL_RX_BUF_SIZE
, PCI_DMA_FROMDEVICE
);
3866 priv
->alloc_rxb_skb
--;
3867 dev_kfree_skb(rxq
->pool
[i
].skb
);
3868 rxq
->pool
[i
].skb
= NULL
;
3870 list_add_tail(&rxq
->pool
[i
].list
, &rxq
->rx_used
);
3873 /* Set us so that we have processed and used all buffers, but have
3874 * not restocked the Rx queue with fresh buffers */
3875 rxq
->read
= rxq
->write
= 0;
3876 rxq
->free_count
= 0;
3877 spin_unlock_irqrestore(&rxq
->lock
, flags
);
3880 /* Convert linear signal-to-noise ratio into dB */
3881 static u8 ratio2dB
[100] = {
3882 /* 0 1 2 3 4 5 6 7 8 9 */
3883 0, 0, 6, 10, 12, 14, 16, 17, 18, 19, /* 00 - 09 */
3884 20, 21, 22, 22, 23, 23, 24, 25, 26, 26, /* 10 - 19 */
3885 26, 26, 26, 27, 27, 28, 28, 28, 29, 29, /* 20 - 29 */
3886 29, 30, 30, 30, 31, 31, 31, 31, 32, 32, /* 30 - 39 */
3887 32, 32, 32, 33, 33, 33, 33, 33, 34, 34, /* 40 - 49 */
3888 34, 34, 34, 34, 35, 35, 35, 35, 35, 35, /* 50 - 59 */
3889 36, 36, 36, 36, 36, 36, 36, 37, 37, 37, /* 60 - 69 */
3890 37, 37, 37, 37, 37, 38, 38, 38, 38, 38, /* 70 - 79 */
3891 38, 38, 38, 38, 38, 39, 39, 39, 39, 39, /* 80 - 89 */
3892 39, 39, 39, 39, 39, 40, 40, 40, 40, 40 /* 90 - 99 */
3895 /* Calculates a relative dB value from a ratio of linear
3896 * (i.e. not dB) signal levels.
3897 * Conversion assumes that levels are voltages (20*log), not powers (10*log). */
3898 int iwl3945_calc_db_from_ratio(int sig_ratio
)
3900 /* 1000:1 or higher just report as 60 dB */
3901 if (sig_ratio
>= 1000)
3904 /* 100:1 or higher, divide by 10 and use table,
3905 * add 20 dB to make up for divide by 10 */
3906 if (sig_ratio
>= 100)
3907 return (20 + (int)ratio2dB
[sig_ratio
/10]);
3909 /* We shouldn't see this */
3913 /* Use table for ratios 1:1 - 99:1 */
3914 return (int)ratio2dB
[sig_ratio
];
3917 #define PERFECT_RSSI (-20) /* dBm */
3918 #define WORST_RSSI (-95) /* dBm */
3919 #define RSSI_RANGE (PERFECT_RSSI - WORST_RSSI)
3921 /* Calculate an indication of rx signal quality (a percentage, not dBm!).
3922 * See http://www.ces.clemson.edu/linux/signal_quality.shtml for info
3923 * about formulas used below. */
3924 int iwl3945_calc_sig_qual(int rssi_dbm
, int noise_dbm
)
3927 int degradation
= PERFECT_RSSI
- rssi_dbm
;
3929 /* If we get a noise measurement, use signal-to-noise ratio (SNR)
3930 * as indicator; formula is (signal dbm - noise dbm).
3931 * SNR at or above 40 is a great signal (100%).
3932 * Below that, scale to fit SNR of 0 - 40 dB within 0 - 100% indicator.
3933 * Weakest usable signal is usually 10 - 15 dB SNR. */
3935 if (rssi_dbm
- noise_dbm
>= 40)
3937 else if (rssi_dbm
< noise_dbm
)
3939 sig_qual
= ((rssi_dbm
- noise_dbm
) * 5) / 2;
3941 /* Else use just the signal level.
3942 * This formula is a least squares fit of data points collected and
3943 * compared with a reference system that had a percentage (%) display
3944 * for signal quality. */
3946 sig_qual
= (100 * (RSSI_RANGE
* RSSI_RANGE
) - degradation
*
3947 (15 * RSSI_RANGE
+ 62 * degradation
)) /
3948 (RSSI_RANGE
* RSSI_RANGE
);
3952 else if (sig_qual
< 1)
3959 * iwl3945_rx_handle - Main entry function for receiving responses from uCode
3961 * Uses the priv->rx_handlers callback function array to invoke
3962 * the appropriate handlers, including command responses,
3963 * frame-received notifications, and other notifications.
3965 static void iwl3945_rx_handle(struct iwl3945_priv
*priv
)
3967 struct iwl3945_rx_mem_buffer
*rxb
;
3968 struct iwl3945_rx_packet
*pkt
;
3969 struct iwl3945_rx_queue
*rxq
= &priv
->rxq
;
3972 unsigned long flags
;
3976 /* uCode's read index (stored in shared DRAM) indicates the last Rx
3977 * buffer that the driver may process (last buffer filled by ucode). */
3978 r
= iwl3945_hw_get_rx_read(priv
);
3981 if (iwl3945_rx_queue_space(rxq
) > (RX_QUEUE_SIZE
/ 2))
3983 /* Rx interrupt, but nothing sent from uCode */
3985 IWL_DEBUG(IWL_DL_RX
| IWL_DL_ISR
, "r = %d, i = %d\n", r
, i
);
3988 rxb
= rxq
->queue
[i
];
3990 /* If an RXB doesn't have a Rx queue slot associated with it,
3991 * then a bug has been introduced in the queue refilling
3992 * routines -- catch it here */
3993 BUG_ON(rxb
== NULL
);
3995 rxq
->queue
[i
] = NULL
;
3997 pci_dma_sync_single_for_cpu(priv
->pci_dev
, rxb
->dma_addr
,
3999 PCI_DMA_FROMDEVICE
);
4000 pkt
= (struct iwl3945_rx_packet
*)rxb
->skb
->data
;
4002 /* Reclaim a command buffer only if this packet is a response
4003 * to a (driver-originated) command.
4004 * If the packet (e.g. Rx frame) originated from uCode,
4005 * there is no command buffer to reclaim.
4006 * Ucode should set SEQ_RX_FRAME bit if ucode-originated,
4007 * but apparently a few don't get set; catch them here. */
4008 reclaim
= !(pkt
->hdr
.sequence
& SEQ_RX_FRAME
) &&
4009 (pkt
->hdr
.cmd
!= STATISTICS_NOTIFICATION
) &&
4010 (pkt
->hdr
.cmd
!= REPLY_TX
);
4012 /* Based on type of command response or notification,
4013 * handle those that need handling via function in
4014 * rx_handlers table. See iwl3945_setup_rx_handlers() */
4015 if (priv
->rx_handlers
[pkt
->hdr
.cmd
]) {
4016 IWL_DEBUG(IWL_DL_HOST_COMMAND
| IWL_DL_RX
| IWL_DL_ISR
,
4017 "r = %d, i = %d, %s, 0x%02x\n", r
, i
,
4018 get_cmd_string(pkt
->hdr
.cmd
), pkt
->hdr
.cmd
);
4019 priv
->rx_handlers
[pkt
->hdr
.cmd
] (priv
, rxb
);
4021 /* No handling needed */
4022 IWL_DEBUG(IWL_DL_HOST_COMMAND
| IWL_DL_RX
| IWL_DL_ISR
,
4023 "r %d i %d No handler needed for %s, 0x%02x\n",
4024 r
, i
, get_cmd_string(pkt
->hdr
.cmd
),
4029 /* Invoke any callbacks, transfer the skb to caller, and
4030 * fire off the (possibly) blocking iwl3945_send_cmd()
4031 * as we reclaim the driver command queue */
4032 if (rxb
&& rxb
->skb
)
4033 iwl3945_tx_cmd_complete(priv
, rxb
);
4035 IWL_WARNING("Claim null rxb?\n");
4038 /* For now we just don't re-use anything. We can tweak this
4039 * later to try and re-use notification packets and SKBs that
4040 * fail to Rx correctly */
4041 if (rxb
->skb
!= NULL
) {
4042 priv
->alloc_rxb_skb
--;
4043 dev_kfree_skb_any(rxb
->skb
);
4047 pci_unmap_single(priv
->pci_dev
, rxb
->dma_addr
,
4048 IWL_RX_BUF_SIZE
, PCI_DMA_FROMDEVICE
);
4049 spin_lock_irqsave(&rxq
->lock
, flags
);
4050 list_add_tail(&rxb
->list
, &priv
->rxq
.rx_used
);
4051 spin_unlock_irqrestore(&rxq
->lock
, flags
);
4052 i
= (i
+ 1) & RX_QUEUE_MASK
;
4053 /* If there are a lot of unused frames,
4054 * restock the Rx queue so ucode won't assert. */
4059 __iwl3945_rx_replenish(priv
);
4065 /* Backtrack one entry */
4067 iwl3945_rx_queue_restock(priv
);
4071 * iwl3945_tx_queue_update_write_ptr - Send new write index to hardware
4073 static int iwl3945_tx_queue_update_write_ptr(struct iwl3945_priv
*priv
,
4074 struct iwl3945_tx_queue
*txq
)
4078 int txq_id
= txq
->q
.id
;
4080 if (txq
->need_update
== 0)
4083 /* if we're trying to save power */
4084 if (test_bit(STATUS_POWER_PMI
, &priv
->status
)) {
4085 /* wake up nic if it's powered down ...
4086 * uCode will wake up, and interrupt us again, so next
4087 * time we'll skip this part. */
4088 reg
= iwl3945_read32(priv
, CSR_UCODE_DRV_GP1
);
4090 if (reg
& CSR_UCODE_DRV_GP1_BIT_MAC_SLEEP
) {
4091 IWL_DEBUG_INFO("Requesting wakeup, GP1 = 0x%x\n", reg
);
4092 iwl3945_set_bit(priv
, CSR_GP_CNTRL
,
4093 CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ
);
4097 /* restore this queue's parameters in nic hardware. */
4098 rc
= iwl3945_grab_nic_access(priv
);
4101 iwl3945_write_direct32(priv
, HBUS_TARG_WRPTR
,
4102 txq
->q
.write_ptr
| (txq_id
<< 8));
4103 iwl3945_release_nic_access(priv
);
4105 /* else not in power-save mode, uCode will never sleep when we're
4106 * trying to tx (during RFKILL, we're not trying to tx). */
4108 iwl3945_write32(priv
, HBUS_TARG_WRPTR
,
4109 txq
->q
.write_ptr
| (txq_id
<< 8));
4111 txq
->need_update
= 0;
4116 #ifdef CONFIG_IWL3945_DEBUG
4117 static void iwl3945_print_rx_config_cmd(struct iwl3945_rxon_cmd
*rxon
)
4119 DECLARE_MAC_BUF(mac
);
4121 IWL_DEBUG_RADIO("RX CONFIG:\n");
4122 iwl3945_print_hex_dump(IWL_DL_RADIO
, (u8
*) rxon
, sizeof(*rxon
));
4123 IWL_DEBUG_RADIO("u16 channel: 0x%x\n", le16_to_cpu(rxon
->channel
));
4124 IWL_DEBUG_RADIO("u32 flags: 0x%08X\n", le32_to_cpu(rxon
->flags
));
4125 IWL_DEBUG_RADIO("u32 filter_flags: 0x%08x\n",
4126 le32_to_cpu(rxon
->filter_flags
));
4127 IWL_DEBUG_RADIO("u8 dev_type: 0x%x\n", rxon
->dev_type
);
4128 IWL_DEBUG_RADIO("u8 ofdm_basic_rates: 0x%02x\n",
4129 rxon
->ofdm_basic_rates
);
4130 IWL_DEBUG_RADIO("u8 cck_basic_rates: 0x%02x\n", rxon
->cck_basic_rates
);
4131 IWL_DEBUG_RADIO("u8[6] node_addr: %s\n",
4132 print_mac(mac
, rxon
->node_addr
));
4133 IWL_DEBUG_RADIO("u8[6] bssid_addr: %s\n",
4134 print_mac(mac
, rxon
->bssid_addr
));
4135 IWL_DEBUG_RADIO("u16 assoc_id: 0x%x\n", le16_to_cpu(rxon
->assoc_id
));
4139 static void iwl3945_enable_interrupts(struct iwl3945_priv
*priv
)
4141 IWL_DEBUG_ISR("Enabling interrupts\n");
4142 set_bit(STATUS_INT_ENABLED
, &priv
->status
);
4143 iwl3945_write32(priv
, CSR_INT_MASK
, CSR_INI_SET_MASK
);
4147 /* call this function to flush any scheduled tasklet */
4148 static inline void iwl_synchronize_irq(struct iwl3945_priv
*priv
)
4150 /* wait to make sure we flush pedding tasklet*/
4151 synchronize_irq(priv
->pci_dev
->irq
);
4152 tasklet_kill(&priv
->irq_tasklet
);
4156 static inline void iwl3945_disable_interrupts(struct iwl3945_priv
*priv
)
4158 clear_bit(STATUS_INT_ENABLED
, &priv
->status
);
4160 /* disable interrupts from uCode/NIC to host */
4161 iwl3945_write32(priv
, CSR_INT_MASK
, 0x00000000);
4163 /* acknowledge/clear/reset any interrupts still pending
4164 * from uCode or flow handler (Rx/Tx DMA) */
4165 iwl3945_write32(priv
, CSR_INT
, 0xffffffff);
4166 iwl3945_write32(priv
, CSR_FH_INT_STATUS
, 0xffffffff);
4167 IWL_DEBUG_ISR("Disabled interrupts\n");
4170 static const char *desc_lookup(int i
)
4178 return "BAD_CHECKSUM";
4180 return "NMI_INTERRUPT";
4184 return "FATAL_ERROR";
4190 #define ERROR_START_OFFSET (1 * sizeof(u32))
4191 #define ERROR_ELEM_SIZE (7 * sizeof(u32))
4193 static void iwl3945_dump_nic_error_log(struct iwl3945_priv
*priv
)
4196 u32 desc
, time
, count
, base
, data1
;
4197 u32 blink1
, blink2
, ilink1
, ilink2
;
4200 base
= le32_to_cpu(priv
->card_alive
.error_event_table_ptr
);
4202 if (!iwl3945_hw_valid_rtc_data_addr(base
)) {
4203 IWL_ERROR("Not valid error log pointer 0x%08X\n", base
);
4207 rc
= iwl3945_grab_nic_access(priv
);
4209 IWL_WARNING("Can not read from adapter at this time.\n");
4213 count
= iwl3945_read_targ_mem(priv
, base
);
4215 if (ERROR_START_OFFSET
<= count
* ERROR_ELEM_SIZE
) {
4216 IWL_ERROR("Start IWL Error Log Dump:\n");
4217 IWL_ERROR("Status: 0x%08lX, count: %d\n", priv
->status
, count
);
4220 IWL_ERROR("Desc Time asrtPC blink2 "
4221 "ilink1 nmiPC Line\n");
4222 for (i
= ERROR_START_OFFSET
;
4223 i
< (count
* ERROR_ELEM_SIZE
) + ERROR_START_OFFSET
;
4224 i
+= ERROR_ELEM_SIZE
) {
4225 desc
= iwl3945_read_targ_mem(priv
, base
+ i
);
4227 iwl3945_read_targ_mem(priv
, base
+ i
+ 1 * sizeof(u32
));
4229 iwl3945_read_targ_mem(priv
, base
+ i
+ 2 * sizeof(u32
));
4231 iwl3945_read_targ_mem(priv
, base
+ i
+ 3 * sizeof(u32
));
4233 iwl3945_read_targ_mem(priv
, base
+ i
+ 4 * sizeof(u32
));
4235 iwl3945_read_targ_mem(priv
, base
+ i
+ 5 * sizeof(u32
));
4237 iwl3945_read_targ_mem(priv
, base
+ i
+ 6 * sizeof(u32
));
4240 ("%-13s (#%d) %010u 0x%05X 0x%05X 0x%05X 0x%05X %u\n\n",
4241 desc_lookup(desc
), desc
, time
, blink1
, blink2
,
4242 ilink1
, ilink2
, data1
);
4245 iwl3945_release_nic_access(priv
);
4249 #define EVENT_START_OFFSET (6 * sizeof(u32))
4252 * iwl3945_print_event_log - Dump error event log to syslog
4254 * NOTE: Must be called with iwl3945_grab_nic_access() already obtained!
4256 static void iwl3945_print_event_log(struct iwl3945_priv
*priv
, u32 start_idx
,
4257 u32 num_events
, u32 mode
)
4260 u32 base
; /* SRAM byte address of event log header */
4261 u32 event_size
; /* 2 u32s, or 3 u32s if timestamp recorded */
4262 u32 ptr
; /* SRAM byte address of log data */
4263 u32 ev
, time
, data
; /* event log data */
4265 if (num_events
== 0)
4268 base
= le32_to_cpu(priv
->card_alive
.log_event_table_ptr
);
4271 event_size
= 2 * sizeof(u32
);
4273 event_size
= 3 * sizeof(u32
);
4275 ptr
= base
+ EVENT_START_OFFSET
+ (start_idx
* event_size
);
4277 /* "time" is actually "data" for mode 0 (no timestamp).
4278 * place event id # at far right for easier visual parsing. */
4279 for (i
= 0; i
< num_events
; i
++) {
4280 ev
= iwl3945_read_targ_mem(priv
, ptr
);
4282 time
= iwl3945_read_targ_mem(priv
, ptr
);
4285 IWL_ERROR("0x%08x\t%04u\n", time
, ev
); /* data, ev */
4287 data
= iwl3945_read_targ_mem(priv
, ptr
);
4289 IWL_ERROR("%010u\t0x%08x\t%04u\n", time
, data
, ev
);
4294 static void iwl3945_dump_nic_event_log(struct iwl3945_priv
*priv
)
4297 u32 base
; /* SRAM byte address of event log header */
4298 u32 capacity
; /* event log capacity in # entries */
4299 u32 mode
; /* 0 - no timestamp, 1 - timestamp recorded */
4300 u32 num_wraps
; /* # times uCode wrapped to top of log */
4301 u32 next_entry
; /* index of next entry to be written by uCode */
4302 u32 size
; /* # entries that we'll print */
4304 base
= le32_to_cpu(priv
->card_alive
.log_event_table_ptr
);
4305 if (!iwl3945_hw_valid_rtc_data_addr(base
)) {
4306 IWL_ERROR("Invalid event log pointer 0x%08X\n", base
);
4310 rc
= iwl3945_grab_nic_access(priv
);
4312 IWL_WARNING("Can not read from adapter at this time.\n");
4316 /* event log header */
4317 capacity
= iwl3945_read_targ_mem(priv
, base
);
4318 mode
= iwl3945_read_targ_mem(priv
, base
+ (1 * sizeof(u32
)));
4319 num_wraps
= iwl3945_read_targ_mem(priv
, base
+ (2 * sizeof(u32
)));
4320 next_entry
= iwl3945_read_targ_mem(priv
, base
+ (3 * sizeof(u32
)));
4322 size
= num_wraps
? capacity
: next_entry
;
4324 /* bail out if nothing in log */
4326 IWL_ERROR("Start IWL Event Log Dump: nothing in log\n");
4327 iwl3945_release_nic_access(priv
);
4331 IWL_ERROR("Start IWL Event Log Dump: display count %d, wraps %d\n",
4334 /* if uCode has wrapped back to top of log, start at the oldest entry,
4335 * i.e the next one that uCode would fill. */
4337 iwl3945_print_event_log(priv
, next_entry
,
4338 capacity
- next_entry
, mode
);
4340 /* (then/else) start at top of log */
4341 iwl3945_print_event_log(priv
, 0, next_entry
, mode
);
4343 iwl3945_release_nic_access(priv
);
4347 * iwl3945_irq_handle_error - called for HW or SW error interrupt from card
4349 static void iwl3945_irq_handle_error(struct iwl3945_priv
*priv
)
4351 /* Set the FW error flag -- cleared on iwl3945_down */
4352 set_bit(STATUS_FW_ERROR
, &priv
->status
);
4354 /* Cancel currently queued command. */
4355 clear_bit(STATUS_HCMD_ACTIVE
, &priv
->status
);
4357 #ifdef CONFIG_IWL3945_DEBUG
4358 if (iwl3945_debug_level
& IWL_DL_FW_ERRORS
) {
4359 iwl3945_dump_nic_error_log(priv
);
4360 iwl3945_dump_nic_event_log(priv
);
4361 iwl3945_print_rx_config_cmd(&priv
->staging_rxon
);
4365 wake_up_interruptible(&priv
->wait_command_queue
);
4367 /* Keep the restart process from trying to send host
4368 * commands by clearing the INIT status bit */
4369 clear_bit(STATUS_READY
, &priv
->status
);
4371 if (!test_bit(STATUS_EXIT_PENDING
, &priv
->status
)) {
4372 IWL_DEBUG(IWL_DL_INFO
| IWL_DL_FW_ERRORS
,
4373 "Restarting adapter due to uCode error.\n");
4375 if (iwl3945_is_associated(priv
)) {
4376 memcpy(&priv
->recovery_rxon
, &priv
->active_rxon
,
4377 sizeof(priv
->recovery_rxon
));
4378 priv
->error_recovering
= 1;
4380 queue_work(priv
->workqueue
, &priv
->restart
);
4384 static void iwl3945_error_recovery(struct iwl3945_priv
*priv
)
4386 unsigned long flags
;
4388 memcpy(&priv
->staging_rxon
, &priv
->recovery_rxon
,
4389 sizeof(priv
->staging_rxon
));
4390 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
4391 iwl3945_commit_rxon(priv
);
4393 iwl3945_add_station(priv
, priv
->bssid
, 1, 0);
4395 spin_lock_irqsave(&priv
->lock
, flags
);
4396 priv
->assoc_id
= le16_to_cpu(priv
->staging_rxon
.assoc_id
);
4397 priv
->error_recovering
= 0;
4398 spin_unlock_irqrestore(&priv
->lock
, flags
);
4401 static void iwl3945_irq_tasklet(struct iwl3945_priv
*priv
)
4403 u32 inta
, handled
= 0;
4405 unsigned long flags
;
4406 #ifdef CONFIG_IWL3945_DEBUG
4410 spin_lock_irqsave(&priv
->lock
, flags
);
4412 /* Ack/clear/reset pending uCode interrupts.
4413 * Note: Some bits in CSR_INT are "OR" of bits in CSR_FH_INT_STATUS,
4414 * and will clear only when CSR_FH_INT_STATUS gets cleared. */
4415 inta
= iwl3945_read32(priv
, CSR_INT
);
4416 iwl3945_write32(priv
, CSR_INT
, inta
);
4418 /* Ack/clear/reset pending flow-handler (DMA) interrupts.
4419 * Any new interrupts that happen after this, either while we're
4420 * in this tasklet, or later, will show up in next ISR/tasklet. */
4421 inta_fh
= iwl3945_read32(priv
, CSR_FH_INT_STATUS
);
4422 iwl3945_write32(priv
, CSR_FH_INT_STATUS
, inta_fh
);
4424 #ifdef CONFIG_IWL3945_DEBUG
4425 if (iwl3945_debug_level
& IWL_DL_ISR
) {
4426 /* just for debug */
4427 inta_mask
= iwl3945_read32(priv
, CSR_INT_MASK
);
4428 IWL_DEBUG_ISR("inta 0x%08x, enabled 0x%08x, fh 0x%08x\n",
4429 inta
, inta_mask
, inta_fh
);
4433 /* Since CSR_INT and CSR_FH_INT_STATUS reads and clears are not
4434 * atomic, make sure that inta covers all the interrupts that
4435 * we've discovered, even if FH interrupt came in just after
4436 * reading CSR_INT. */
4437 if (inta_fh
& CSR39_FH_INT_RX_MASK
)
4438 inta
|= CSR_INT_BIT_FH_RX
;
4439 if (inta_fh
& CSR39_FH_INT_TX_MASK
)
4440 inta
|= CSR_INT_BIT_FH_TX
;
4442 /* Now service all interrupt bits discovered above. */
4443 if (inta
& CSR_INT_BIT_HW_ERR
) {
4444 IWL_ERROR("Microcode HW error detected. Restarting.\n");
4446 /* Tell the device to stop sending interrupts */
4447 iwl3945_disable_interrupts(priv
);
4449 iwl3945_irq_handle_error(priv
);
4451 handled
|= CSR_INT_BIT_HW_ERR
;
4453 spin_unlock_irqrestore(&priv
->lock
, flags
);
4458 #ifdef CONFIG_IWL3945_DEBUG
4459 if (iwl3945_debug_level
& (IWL_DL_ISR
)) {
4460 /* NIC fires this, but we don't use it, redundant with WAKEUP */
4461 if (inta
& CSR_INT_BIT_SCD
)
4462 IWL_DEBUG_ISR("Scheduler finished to transmit "
4463 "the frame/frames.\n");
4465 /* Alive notification via Rx interrupt will do the real work */
4466 if (inta
& CSR_INT_BIT_ALIVE
)
4467 IWL_DEBUG_ISR("Alive interrupt\n");
4470 /* Safely ignore these bits for debug checks below */
4471 inta
&= ~(CSR_INT_BIT_SCD
| CSR_INT_BIT_ALIVE
);
4473 /* HW RF KILL switch toggled (4965 only) */
4474 if (inta
& CSR_INT_BIT_RF_KILL
) {
4476 if (!(iwl3945_read32(priv
, CSR_GP_CNTRL
) &
4477 CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW
))
4480 IWL_DEBUG(IWL_DL_INFO
| IWL_DL_RF_KILL
| IWL_DL_ISR
,
4481 "RF_KILL bit toggled to %s.\n",
4482 hw_rf_kill
? "disable radio":"enable radio");
4484 /* Queue restart only if RF_KILL switch was set to "kill"
4485 * when we loaded driver, and is now set to "enable".
4486 * After we're Alive, RF_KILL gets handled by
4487 * iwl3945_rx_card_state_notif() */
4488 if (!hw_rf_kill
&& !test_bit(STATUS_ALIVE
, &priv
->status
)) {
4489 clear_bit(STATUS_RF_KILL_HW
, &priv
->status
);
4490 queue_work(priv
->workqueue
, &priv
->restart
);
4493 handled
|= CSR_INT_BIT_RF_KILL
;
4496 /* Chip got too hot and stopped itself (4965 only) */
4497 if (inta
& CSR_INT_BIT_CT_KILL
) {
4498 IWL_ERROR("Microcode CT kill error detected.\n");
4499 handled
|= CSR_INT_BIT_CT_KILL
;
4502 /* Error detected by uCode */
4503 if (inta
& CSR_INT_BIT_SW_ERR
) {
4504 IWL_ERROR("Microcode SW error detected. Restarting 0x%X.\n",
4506 iwl3945_irq_handle_error(priv
);
4507 handled
|= CSR_INT_BIT_SW_ERR
;
4510 /* uCode wakes up after power-down sleep */
4511 if (inta
& CSR_INT_BIT_WAKEUP
) {
4512 IWL_DEBUG_ISR("Wakeup interrupt\n");
4513 iwl3945_rx_queue_update_write_ptr(priv
, &priv
->rxq
);
4514 iwl3945_tx_queue_update_write_ptr(priv
, &priv
->txq
[0]);
4515 iwl3945_tx_queue_update_write_ptr(priv
, &priv
->txq
[1]);
4516 iwl3945_tx_queue_update_write_ptr(priv
, &priv
->txq
[2]);
4517 iwl3945_tx_queue_update_write_ptr(priv
, &priv
->txq
[3]);
4518 iwl3945_tx_queue_update_write_ptr(priv
, &priv
->txq
[4]);
4519 iwl3945_tx_queue_update_write_ptr(priv
, &priv
->txq
[5]);
4521 handled
|= CSR_INT_BIT_WAKEUP
;
4524 /* All uCode command responses, including Tx command responses,
4525 * Rx "responses" (frame-received notification), and other
4526 * notifications from uCode come through here*/
4527 if (inta
& (CSR_INT_BIT_FH_RX
| CSR_INT_BIT_SW_RX
)) {
4528 iwl3945_rx_handle(priv
);
4529 handled
|= (CSR_INT_BIT_FH_RX
| CSR_INT_BIT_SW_RX
);
4532 if (inta
& CSR_INT_BIT_FH_TX
) {
4533 IWL_DEBUG_ISR("Tx interrupt\n");
4535 iwl3945_write32(priv
, CSR_FH_INT_STATUS
, (1 << 6));
4536 if (!iwl3945_grab_nic_access(priv
)) {
4537 iwl3945_write_direct32(priv
,
4539 (ALM_FH_SRVC_CHNL
), 0x0);
4540 iwl3945_release_nic_access(priv
);
4542 handled
|= CSR_INT_BIT_FH_TX
;
4545 if (inta
& ~handled
)
4546 IWL_ERROR("Unhandled INTA bits 0x%08x\n", inta
& ~handled
);
4548 if (inta
& ~CSR_INI_SET_MASK
) {
4549 IWL_WARNING("Disabled INTA bits 0x%08x were pending\n",
4550 inta
& ~CSR_INI_SET_MASK
);
4551 IWL_WARNING(" with FH_INT = 0x%08x\n", inta_fh
);
4554 /* Re-enable all interrupts */
4555 /* only Re-enable if disabled by irq */
4556 if (test_bit(STATUS_INT_ENABLED
, &priv
->status
))
4557 iwl3945_enable_interrupts(priv
);
4559 #ifdef CONFIG_IWL3945_DEBUG
4560 if (iwl3945_debug_level
& (IWL_DL_ISR
)) {
4561 inta
= iwl3945_read32(priv
, CSR_INT
);
4562 inta_mask
= iwl3945_read32(priv
, CSR_INT_MASK
);
4563 inta_fh
= iwl3945_read32(priv
, CSR_FH_INT_STATUS
);
4564 IWL_DEBUG_ISR("End inta 0x%08x, enabled 0x%08x, fh 0x%08x, "
4565 "flags 0x%08lx\n", inta
, inta_mask
, inta_fh
, flags
);
4568 spin_unlock_irqrestore(&priv
->lock
, flags
);
4571 static irqreturn_t
iwl3945_isr(int irq
, void *data
)
4573 struct iwl3945_priv
*priv
= data
;
4574 u32 inta
, inta_mask
;
4579 spin_lock(&priv
->lock
);
4581 /* Disable (but don't clear!) interrupts here to avoid
4582 * back-to-back ISRs and sporadic interrupts from our NIC.
4583 * If we have something to service, the tasklet will re-enable ints.
4584 * If we *don't* have something, we'll re-enable before leaving here. */
4585 inta_mask
= iwl3945_read32(priv
, CSR_INT_MASK
); /* just for debug */
4586 iwl3945_write32(priv
, CSR_INT_MASK
, 0x00000000);
4588 /* Discover which interrupts are active/pending */
4589 inta
= iwl3945_read32(priv
, CSR_INT
);
4590 inta_fh
= iwl3945_read32(priv
, CSR_FH_INT_STATUS
);
4592 /* Ignore interrupt if there's nothing in NIC to service.
4593 * This may be due to IRQ shared with another device,
4594 * or due to sporadic interrupts thrown from our NIC. */
4595 if (!inta
&& !inta_fh
) {
4596 IWL_DEBUG_ISR("Ignore interrupt, inta == 0, inta_fh == 0\n");
4600 if ((inta
== 0xFFFFFFFF) || ((inta
& 0xFFFFFFF0) == 0xa5a5a5a0)) {
4601 /* Hardware disappeared */
4602 IWL_WARNING("HARDWARE GONE?? INTA == 0x%080x\n", inta
);
4606 IWL_DEBUG_ISR("ISR inta 0x%08x, enabled 0x%08x, fh 0x%08x\n",
4607 inta
, inta_mask
, inta_fh
);
4609 inta
&= ~CSR_INT_BIT_SCD
;
4611 /* iwl3945_irq_tasklet() will service interrupts and re-enable them */
4612 if (likely(inta
|| inta_fh
))
4613 tasklet_schedule(&priv
->irq_tasklet
);
4615 spin_unlock(&priv
->lock
);
4620 /* re-enable interrupts here since we don't have anything to service. */
4621 /* only Re-enable if disabled by irq */
4622 if (test_bit(STATUS_INT_ENABLED
, &priv
->status
))
4623 iwl3945_enable_interrupts(priv
);
4624 spin_unlock(&priv
->lock
);
4628 /************************** EEPROM BANDS ****************************
4630 * The iwl3945_eeprom_band definitions below provide the mapping from the
4631 * EEPROM contents to the specific channel number supported for each
4634 * For example, iwl3945_priv->eeprom.band_3_channels[4] from the band_3
4635 * definition below maps to physical channel 42 in the 5.2GHz spectrum.
4636 * The specific geography and calibration information for that channel
4637 * is contained in the eeprom map itself.
4639 * During init, we copy the eeprom information and channel map
4640 * information into priv->channel_info_24/52 and priv->channel_map_24/52
4642 * channel_map_24/52 provides the index in the channel_info array for a
4643 * given channel. We have to have two separate maps as there is channel
4644 * overlap with the 2.4GHz and 5.2GHz spectrum as seen in band_1 and
4647 * A value of 0xff stored in the channel_map indicates that the channel
4648 * is not supported by the hardware at all.
4650 * A value of 0xfe in the channel_map indicates that the channel is not
4651 * valid for Tx with the current hardware. This means that
4652 * while the system can tune and receive on a given channel, it may not
4653 * be able to associate or transmit any frames on that
4654 * channel. There is no corresponding channel information for that
4657 *********************************************************************/
4660 static const u8 iwl3945_eeprom_band_1
[14] = {
4661 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14
4665 static const u8 iwl3945_eeprom_band_2
[] = { /* 4915-5080MHz */
4666 183, 184, 185, 187, 188, 189, 192, 196, 7, 8, 11, 12, 16
4669 static const u8 iwl3945_eeprom_band_3
[] = { /* 5170-5320MHz */
4670 34, 36, 38, 40, 42, 44, 46, 48, 52, 56, 60, 64
4673 static const u8 iwl3945_eeprom_band_4
[] = { /* 5500-5700MHz */
4674 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140
4677 static const u8 iwl3945_eeprom_band_5
[] = { /* 5725-5825MHz */
4678 145, 149, 153, 157, 161, 165
4681 static void iwl3945_init_band_reference(const struct iwl3945_priv
*priv
, int band
,
4682 int *eeprom_ch_count
,
4683 const struct iwl3945_eeprom_channel
4685 const u8
**eeprom_ch_index
)
4688 case 1: /* 2.4GHz band */
4689 *eeprom_ch_count
= ARRAY_SIZE(iwl3945_eeprom_band_1
);
4690 *eeprom_ch_info
= priv
->eeprom
.band_1_channels
;
4691 *eeprom_ch_index
= iwl3945_eeprom_band_1
;
4693 case 2: /* 4.9GHz band */
4694 *eeprom_ch_count
= ARRAY_SIZE(iwl3945_eeprom_band_2
);
4695 *eeprom_ch_info
= priv
->eeprom
.band_2_channels
;
4696 *eeprom_ch_index
= iwl3945_eeprom_band_2
;
4698 case 3: /* 5.2GHz band */
4699 *eeprom_ch_count
= ARRAY_SIZE(iwl3945_eeprom_band_3
);
4700 *eeprom_ch_info
= priv
->eeprom
.band_3_channels
;
4701 *eeprom_ch_index
= iwl3945_eeprom_band_3
;
4703 case 4: /* 5.5GHz band */
4704 *eeprom_ch_count
= ARRAY_SIZE(iwl3945_eeprom_band_4
);
4705 *eeprom_ch_info
= priv
->eeprom
.band_4_channels
;
4706 *eeprom_ch_index
= iwl3945_eeprom_band_4
;
4708 case 5: /* 5.7GHz band */
4709 *eeprom_ch_count
= ARRAY_SIZE(iwl3945_eeprom_band_5
);
4710 *eeprom_ch_info
= priv
->eeprom
.band_5_channels
;
4711 *eeprom_ch_index
= iwl3945_eeprom_band_5
;
4720 * iwl3945_get_channel_info - Find driver's private channel info
4722 * Based on band and channel number.
4724 const struct iwl3945_channel_info
*iwl3945_get_channel_info(const struct iwl3945_priv
*priv
,
4725 enum ieee80211_band band
, u16 channel
)
4730 case IEEE80211_BAND_5GHZ
:
4731 for (i
= 14; i
< priv
->channel_count
; i
++) {
4732 if (priv
->channel_info
[i
].channel
== channel
)
4733 return &priv
->channel_info
[i
];
4737 case IEEE80211_BAND_2GHZ
:
4738 if (channel
>= 1 && channel
<= 14)
4739 return &priv
->channel_info
[channel
- 1];
4741 case IEEE80211_NUM_BANDS
:
4748 #define CHECK_AND_PRINT(x) ((eeprom_ch_info[ch].flags & EEPROM_CHANNEL_##x) \
4752 * iwl3945_init_channel_map - Set up driver's info for all possible channels
4754 static int iwl3945_init_channel_map(struct iwl3945_priv
*priv
)
4756 int eeprom_ch_count
= 0;
4757 const u8
*eeprom_ch_index
= NULL
;
4758 const struct iwl3945_eeprom_channel
*eeprom_ch_info
= NULL
;
4760 struct iwl3945_channel_info
*ch_info
;
4762 if (priv
->channel_count
) {
4763 IWL_DEBUG_INFO("Channel map already initialized.\n");
4767 if (priv
->eeprom
.version
< 0x2f) {
4768 IWL_WARNING("Unsupported EEPROM version: 0x%04X\n",
4769 priv
->eeprom
.version
);
4773 IWL_DEBUG_INFO("Initializing regulatory info from EEPROM\n");
4775 priv
->channel_count
=
4776 ARRAY_SIZE(iwl3945_eeprom_band_1
) +
4777 ARRAY_SIZE(iwl3945_eeprom_band_2
) +
4778 ARRAY_SIZE(iwl3945_eeprom_band_3
) +
4779 ARRAY_SIZE(iwl3945_eeprom_band_4
) +
4780 ARRAY_SIZE(iwl3945_eeprom_band_5
);
4782 IWL_DEBUG_INFO("Parsing data for %d channels.\n", priv
->channel_count
);
4784 priv
->channel_info
= kzalloc(sizeof(struct iwl3945_channel_info
) *
4785 priv
->channel_count
, GFP_KERNEL
);
4786 if (!priv
->channel_info
) {
4787 IWL_ERROR("Could not allocate channel_info\n");
4788 priv
->channel_count
= 0;
4792 ch_info
= priv
->channel_info
;
4794 /* Loop through the 5 EEPROM bands adding them in order to the
4795 * channel map we maintain (that contains additional information than
4796 * what just in the EEPROM) */
4797 for (band
= 1; band
<= 5; band
++) {
4799 iwl3945_init_band_reference(priv
, band
, &eeprom_ch_count
,
4800 &eeprom_ch_info
, &eeprom_ch_index
);
4802 /* Loop through each band adding each of the channels */
4803 for (ch
= 0; ch
< eeprom_ch_count
; ch
++) {
4804 ch_info
->channel
= eeprom_ch_index
[ch
];
4805 ch_info
->band
= (band
== 1) ? IEEE80211_BAND_2GHZ
:
4806 IEEE80211_BAND_5GHZ
;
4808 /* permanently store EEPROM's channel regulatory flags
4809 * and max power in channel info database. */
4810 ch_info
->eeprom
= eeprom_ch_info
[ch
];
4812 /* Copy the run-time flags so they are there even on
4813 * invalid channels */
4814 ch_info
->flags
= eeprom_ch_info
[ch
].flags
;
4816 if (!(is_channel_valid(ch_info
))) {
4817 IWL_DEBUG_INFO("Ch. %d Flags %x [%sGHz] - "
4821 is_channel_a_band(ch_info
) ?
4827 /* Initialize regulatory-based run-time data */
4828 ch_info
->max_power_avg
= ch_info
->curr_txpow
=
4829 eeprom_ch_info
[ch
].max_power_avg
;
4830 ch_info
->scan_power
= eeprom_ch_info
[ch
].max_power_avg
;
4831 ch_info
->min_power
= 0;
4833 IWL_DEBUG_INFO("Ch. %d [%sGHz] %s%s%s%s%s%s(0x%02x"
4834 " %ddBm): Ad-Hoc %ssupported\n",
4836 is_channel_a_band(ch_info
) ?
4838 CHECK_AND_PRINT(VALID
),
4839 CHECK_AND_PRINT(IBSS
),
4840 CHECK_AND_PRINT(ACTIVE
),
4841 CHECK_AND_PRINT(RADAR
),
4842 CHECK_AND_PRINT(WIDE
),
4843 CHECK_AND_PRINT(DFS
),
4844 eeprom_ch_info
[ch
].flags
,
4845 eeprom_ch_info
[ch
].max_power_avg
,
4846 ((eeprom_ch_info
[ch
].
4847 flags
& EEPROM_CHANNEL_IBSS
)
4848 && !(eeprom_ch_info
[ch
].
4849 flags
& EEPROM_CHANNEL_RADAR
))
4852 /* Set the user_txpower_limit to the highest power
4853 * supported by any channel */
4854 if (eeprom_ch_info
[ch
].max_power_avg
>
4855 priv
->user_txpower_limit
)
4856 priv
->user_txpower_limit
=
4857 eeprom_ch_info
[ch
].max_power_avg
;
4863 /* Set up txpower settings in driver for all channels */
4864 if (iwl3945_txpower_set_from_eeprom(priv
))
4871 * iwl3945_free_channel_map - undo allocations in iwl3945_init_channel_map
4873 static void iwl3945_free_channel_map(struct iwl3945_priv
*priv
)
4875 kfree(priv
->channel_info
);
4876 priv
->channel_count
= 0;
4879 /* For active scan, listen ACTIVE_DWELL_TIME (msec) on each channel after
4880 * sending probe req. This should be set long enough to hear probe responses
4881 * from more than one AP. */
4882 #define IWL_ACTIVE_DWELL_TIME_24 (20) /* all times in msec */
4883 #define IWL_ACTIVE_DWELL_TIME_52 (10)
4885 /* For faster active scanning, scan will move to the next channel if fewer than
4886 * PLCP_QUIET_THRESH packets are heard on this channel within
4887 * ACTIVE_QUIET_TIME after sending probe request. This shortens the dwell
4888 * time if it's a quiet channel (nothing responded to our probe, and there's
4889 * no other traffic).
4890 * Disable "quiet" feature by setting PLCP_QUIET_THRESH to 0. */
4891 #define IWL_PLCP_QUIET_THRESH __constant_cpu_to_le16(1) /* packets */
4892 #define IWL_ACTIVE_QUIET_TIME __constant_cpu_to_le16(5) /* msec */
4894 /* For passive scan, listen PASSIVE_DWELL_TIME (msec) on each channel.
4895 * Must be set longer than active dwell time.
4896 * For the most reliable scan, set > AP beacon interval (typically 100msec). */
4897 #define IWL_PASSIVE_DWELL_TIME_24 (20) /* all times in msec */
4898 #define IWL_PASSIVE_DWELL_TIME_52 (10)
4899 #define IWL_PASSIVE_DWELL_BASE (100)
4900 #define IWL_CHANNEL_TUNE_TIME 5
4902 static inline u16
iwl3945_get_active_dwell_time(struct iwl3945_priv
*priv
,
4903 enum ieee80211_band band
)
4905 if (band
== IEEE80211_BAND_5GHZ
)
4906 return IWL_ACTIVE_DWELL_TIME_52
;
4908 return IWL_ACTIVE_DWELL_TIME_24
;
4911 static u16
iwl3945_get_passive_dwell_time(struct iwl3945_priv
*priv
,
4912 enum ieee80211_band band
)
4914 u16 active
= iwl3945_get_active_dwell_time(priv
, band
);
4915 u16 passive
= (band
== IEEE80211_BAND_2GHZ
) ?
4916 IWL_PASSIVE_DWELL_BASE
+ IWL_PASSIVE_DWELL_TIME_24
:
4917 IWL_PASSIVE_DWELL_BASE
+ IWL_PASSIVE_DWELL_TIME_52
;
4919 if (iwl3945_is_associated(priv
)) {
4920 /* If we're associated, we clamp the maximum passive
4921 * dwell time to be 98% of the beacon interval (minus
4922 * 2 * channel tune time) */
4923 passive
= priv
->beacon_int
;
4924 if ((passive
> IWL_PASSIVE_DWELL_BASE
) || !passive
)
4925 passive
= IWL_PASSIVE_DWELL_BASE
;
4926 passive
= (passive
* 98) / 100 - IWL_CHANNEL_TUNE_TIME
* 2;
4929 if (passive
<= active
)
4930 passive
= active
+ 1;
4935 static int iwl3945_get_channels_for_scan(struct iwl3945_priv
*priv
,
4936 enum ieee80211_band band
,
4937 u8 is_active
, u8 direct_mask
,
4938 struct iwl3945_scan_channel
*scan_ch
)
4940 const struct ieee80211_channel
*channels
= NULL
;
4941 const struct ieee80211_supported_band
*sband
;
4942 const struct iwl3945_channel_info
*ch_info
;
4943 u16 passive_dwell
= 0;
4944 u16 active_dwell
= 0;
4947 sband
= iwl3945_get_band(priv
, band
);
4951 channels
= sband
->channels
;
4953 active_dwell
= iwl3945_get_active_dwell_time(priv
, band
);
4954 passive_dwell
= iwl3945_get_passive_dwell_time(priv
, band
);
4956 for (i
= 0, added
= 0; i
< sband
->n_channels
; i
++) {
4957 if (channels
[i
].flags
& IEEE80211_CHAN_DISABLED
)
4960 scan_ch
->channel
= channels
[i
].hw_value
;
4962 ch_info
= iwl3945_get_channel_info(priv
, band
, scan_ch
->channel
);
4963 if (!is_channel_valid(ch_info
)) {
4964 IWL_DEBUG_SCAN("Channel %d is INVALID for this SKU.\n",
4969 if (!is_active
|| is_channel_passive(ch_info
) ||
4970 (channels
[i
].flags
& IEEE80211_CHAN_PASSIVE_SCAN
))
4971 scan_ch
->type
= 0; /* passive */
4973 scan_ch
->type
= 1; /* active */
4975 if (scan_ch
->type
& 1)
4976 scan_ch
->type
|= (direct_mask
<< 1);
4978 scan_ch
->active_dwell
= cpu_to_le16(active_dwell
);
4979 scan_ch
->passive_dwell
= cpu_to_le16(passive_dwell
);
4981 /* Set txpower levels to defaults */
4982 scan_ch
->tpc
.dsp_atten
= 110;
4983 /* scan_pwr_info->tpc.dsp_atten; */
4985 /*scan_pwr_info->tpc.tx_gain; */
4986 if (band
== IEEE80211_BAND_5GHZ
)
4987 scan_ch
->tpc
.tx_gain
= ((1 << 5) | (3 << 3)) | 3;
4989 scan_ch
->tpc
.tx_gain
= ((1 << 5) | (5 << 3));
4990 /* NOTE: if we were doing 6Mb OFDM for scans we'd use
4992 * scan_ch->tpc.tx_gain = ((1 << 5) | (2 << 3)) | 3;
4996 IWL_DEBUG_SCAN("Scanning %d [%s %d]\n",
4998 (scan_ch
->type
& 1) ? "ACTIVE" : "PASSIVE",
4999 (scan_ch
->type
& 1) ?
5000 active_dwell
: passive_dwell
);
5006 IWL_DEBUG_SCAN("total channels to scan %d \n", added
);
5010 static void iwl3945_init_hw_rates(struct iwl3945_priv
*priv
,
5011 struct ieee80211_rate
*rates
)
5015 for (i
= 0; i
< IWL_RATE_COUNT
; i
++) {
5016 rates
[i
].bitrate
= iwl3945_rates
[i
].ieee
* 5;
5017 rates
[i
].hw_value
= i
; /* Rate scaling will work on indexes */
5018 rates
[i
].hw_value_short
= i
;
5020 if ((i
> IWL_LAST_OFDM_RATE
) || (i
< IWL_FIRST_OFDM_RATE
)) {
5022 * If CCK != 1M then set short preamble rate flag.
5024 rates
[i
].flags
|= (iwl3945_rates
[i
].plcp
== 10) ?
5025 0 : IEEE80211_RATE_SHORT_PREAMBLE
;
5031 * iwl3945_init_geos - Initialize mac80211's geo/channel info based from eeprom
5033 static int iwl3945_init_geos(struct iwl3945_priv
*priv
)
5035 struct iwl3945_channel_info
*ch
;
5036 struct ieee80211_supported_band
*sband
;
5037 struct ieee80211_channel
*channels
;
5038 struct ieee80211_channel
*geo_ch
;
5039 struct ieee80211_rate
*rates
;
5042 if (priv
->bands
[IEEE80211_BAND_2GHZ
].n_bitrates
||
5043 priv
->bands
[IEEE80211_BAND_5GHZ
].n_bitrates
) {
5044 IWL_DEBUG_INFO("Geography modes already initialized.\n");
5045 set_bit(STATUS_GEO_CONFIGURED
, &priv
->status
);
5049 channels
= kzalloc(sizeof(struct ieee80211_channel
) *
5050 priv
->channel_count
, GFP_KERNEL
);
5054 rates
= kzalloc((sizeof(struct ieee80211_rate
) * (IWL_RATE_COUNT
+ 1)),
5061 /* 5.2GHz channels start after the 2.4GHz channels */
5062 sband
= &priv
->bands
[IEEE80211_BAND_5GHZ
];
5063 sband
->channels
= &channels
[ARRAY_SIZE(iwl3945_eeprom_band_1
)];
5065 sband
->bitrates
= &rates
[IWL_FIRST_OFDM_RATE
];
5066 sband
->n_bitrates
= IWL_RATE_COUNT
- IWL_FIRST_OFDM_RATE
;
5068 sband
= &priv
->bands
[IEEE80211_BAND_2GHZ
];
5069 sband
->channels
= channels
;
5071 sband
->bitrates
= rates
;
5072 sband
->n_bitrates
= IWL_RATE_COUNT
;
5074 priv
->ieee_channels
= channels
;
5075 priv
->ieee_rates
= rates
;
5077 iwl3945_init_hw_rates(priv
, rates
);
5079 for (i
= 0; i
< priv
->channel_count
; i
++) {
5080 ch
= &priv
->channel_info
[i
];
5082 /* FIXME: might be removed if scan is OK*/
5083 if (!is_channel_valid(ch
))
5086 if (is_channel_a_band(ch
))
5087 sband
= &priv
->bands
[IEEE80211_BAND_5GHZ
];
5089 sband
= &priv
->bands
[IEEE80211_BAND_2GHZ
];
5091 geo_ch
= &sband
->channels
[sband
->n_channels
++];
5093 geo_ch
->center_freq
= ieee80211_channel_to_frequency(ch
->channel
);
5094 geo_ch
->max_power
= ch
->max_power_avg
;
5095 geo_ch
->max_antenna_gain
= 0xff;
5096 geo_ch
->hw_value
= ch
->channel
;
5098 if (is_channel_valid(ch
)) {
5099 if (!(ch
->flags
& EEPROM_CHANNEL_IBSS
))
5100 geo_ch
->flags
|= IEEE80211_CHAN_NO_IBSS
;
5102 if (!(ch
->flags
& EEPROM_CHANNEL_ACTIVE
))
5103 geo_ch
->flags
|= IEEE80211_CHAN_PASSIVE_SCAN
;
5105 if (ch
->flags
& EEPROM_CHANNEL_RADAR
)
5106 geo_ch
->flags
|= IEEE80211_CHAN_RADAR
;
5108 if (ch
->max_power_avg
> priv
->max_channel_txpower_limit
)
5109 priv
->max_channel_txpower_limit
=
5112 geo_ch
->flags
|= IEEE80211_CHAN_DISABLED
;
5115 /* Save flags for reg domain usage */
5116 geo_ch
->orig_flags
= geo_ch
->flags
;
5118 IWL_DEBUG_INFO("Channel %d Freq=%d[%sGHz] %s flag=0%X\n",
5119 ch
->channel
, geo_ch
->center_freq
,
5120 is_channel_a_band(ch
) ? "5.2" : "2.4",
5121 geo_ch
->flags
& IEEE80211_CHAN_DISABLED
?
5122 "restricted" : "valid",
5126 if ((priv
->bands
[IEEE80211_BAND_5GHZ
].n_channels
== 0) &&
5127 priv
->cfg
->sku
& IWL_SKU_A
) {
5128 printk(KERN_INFO DRV_NAME
5129 ": Incorrectly detected BG card as ABG. Please send "
5130 "your PCI ID 0x%04X:0x%04X to maintainer.\n",
5131 priv
->pci_dev
->device
, priv
->pci_dev
->subsystem_device
);
5132 priv
->cfg
->sku
&= ~IWL_SKU_A
;
5135 printk(KERN_INFO DRV_NAME
5136 ": Tunable channels: %d 802.11bg, %d 802.11a channels\n",
5137 priv
->bands
[IEEE80211_BAND_2GHZ
].n_channels
,
5138 priv
->bands
[IEEE80211_BAND_5GHZ
].n_channels
);
5140 if (priv
->bands
[IEEE80211_BAND_2GHZ
].n_channels
)
5141 priv
->hw
->wiphy
->bands
[IEEE80211_BAND_2GHZ
] =
5142 &priv
->bands
[IEEE80211_BAND_2GHZ
];
5143 if (priv
->bands
[IEEE80211_BAND_5GHZ
].n_channels
)
5144 priv
->hw
->wiphy
->bands
[IEEE80211_BAND_5GHZ
] =
5145 &priv
->bands
[IEEE80211_BAND_5GHZ
];
5147 set_bit(STATUS_GEO_CONFIGURED
, &priv
->status
);
5153 * iwl3945_free_geos - undo allocations in iwl3945_init_geos
5155 static void iwl3945_free_geos(struct iwl3945_priv
*priv
)
5157 kfree(priv
->ieee_channels
);
5158 kfree(priv
->ieee_rates
);
5159 clear_bit(STATUS_GEO_CONFIGURED
, &priv
->status
);
5162 /******************************************************************************
5164 * uCode download functions
5166 ******************************************************************************/
5168 static void iwl3945_dealloc_ucode_pci(struct iwl3945_priv
*priv
)
5170 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_code
);
5171 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_data
);
5172 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_data_backup
);
5173 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_init
);
5174 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_init_data
);
5175 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_boot
);
5179 * iwl3945_verify_inst_full - verify runtime uCode image in card vs. host,
5180 * looking at all data.
5182 static int iwl3945_verify_inst_full(struct iwl3945_priv
*priv
, __le32
* image
, u32 len
)
5189 IWL_DEBUG_INFO("ucode inst image size is %u\n", len
);
5191 rc
= iwl3945_grab_nic_access(priv
);
5195 iwl3945_write_direct32(priv
, HBUS_TARG_MEM_RADDR
, RTC_INST_LOWER_BOUND
);
5198 for (; len
> 0; len
-= sizeof(u32
), image
++) {
5199 /* read data comes through single port, auto-incr addr */
5200 /* NOTE: Use the debugless read so we don't flood kernel log
5201 * if IWL_DL_IO is set */
5202 val
= _iwl3945_read_direct32(priv
, HBUS_TARG_MEM_RDAT
);
5203 if (val
!= le32_to_cpu(*image
)) {
5204 IWL_ERROR("uCode INST section is invalid at "
5205 "offset 0x%x, is 0x%x, s/b 0x%x\n",
5206 save_len
- len
, val
, le32_to_cpu(*image
));
5214 iwl3945_release_nic_access(priv
);
5217 IWL_DEBUG_INFO("ucode image in INSTRUCTION memory is good\n");
5224 * iwl3945_verify_inst_sparse - verify runtime uCode image in card vs. host,
5225 * using sample data 100 bytes apart. If these sample points are good,
5226 * it's a pretty good bet that everything between them is good, too.
5228 static int iwl3945_verify_inst_sparse(struct iwl3945_priv
*priv
, __le32
*image
, u32 len
)
5235 IWL_DEBUG_INFO("ucode inst image size is %u\n", len
);
5237 rc
= iwl3945_grab_nic_access(priv
);
5241 for (i
= 0; i
< len
; i
+= 100, image
+= 100/sizeof(u32
)) {
5242 /* read data comes through single port, auto-incr addr */
5243 /* NOTE: Use the debugless read so we don't flood kernel log
5244 * if IWL_DL_IO is set */
5245 iwl3945_write_direct32(priv
, HBUS_TARG_MEM_RADDR
,
5246 i
+ RTC_INST_LOWER_BOUND
);
5247 val
= _iwl3945_read_direct32(priv
, HBUS_TARG_MEM_RDAT
);
5248 if (val
!= le32_to_cpu(*image
)) {
5249 #if 0 /* Enable this if you want to see details */
5250 IWL_ERROR("uCode INST section is invalid at "
5251 "offset 0x%x, is 0x%x, s/b 0x%x\n",
5261 iwl3945_release_nic_access(priv
);
5268 * iwl3945_verify_ucode - determine which instruction image is in SRAM,
5269 * and verify its contents
5271 static int iwl3945_verify_ucode(struct iwl3945_priv
*priv
)
5278 image
= (__le32
*)priv
->ucode_boot
.v_addr
;
5279 len
= priv
->ucode_boot
.len
;
5280 rc
= iwl3945_verify_inst_sparse(priv
, image
, len
);
5282 IWL_DEBUG_INFO("Bootstrap uCode is good in inst SRAM\n");
5286 /* Try initialize */
5287 image
= (__le32
*)priv
->ucode_init
.v_addr
;
5288 len
= priv
->ucode_init
.len
;
5289 rc
= iwl3945_verify_inst_sparse(priv
, image
, len
);
5291 IWL_DEBUG_INFO("Initialize uCode is good in inst SRAM\n");
5295 /* Try runtime/protocol */
5296 image
= (__le32
*)priv
->ucode_code
.v_addr
;
5297 len
= priv
->ucode_code
.len
;
5298 rc
= iwl3945_verify_inst_sparse(priv
, image
, len
);
5300 IWL_DEBUG_INFO("Runtime uCode is good in inst SRAM\n");
5304 IWL_ERROR("NO VALID UCODE IMAGE IN INSTRUCTION SRAM!!\n");
5306 /* Since nothing seems to match, show first several data entries in
5307 * instruction SRAM, so maybe visual inspection will give a clue.
5308 * Selection of bootstrap image (vs. other images) is arbitrary. */
5309 image
= (__le32
*)priv
->ucode_boot
.v_addr
;
5310 len
= priv
->ucode_boot
.len
;
5311 rc
= iwl3945_verify_inst_full(priv
, image
, len
);
5317 /* check contents of special bootstrap uCode SRAM */
5318 static int iwl3945_verify_bsm(struct iwl3945_priv
*priv
)
5320 __le32
*image
= priv
->ucode_boot
.v_addr
;
5321 u32 len
= priv
->ucode_boot
.len
;
5325 IWL_DEBUG_INFO("Begin verify bsm\n");
5327 /* verify BSM SRAM contents */
5328 val
= iwl3945_read_prph(priv
, BSM_WR_DWCOUNT_REG
);
5329 for (reg
= BSM_SRAM_LOWER_BOUND
;
5330 reg
< BSM_SRAM_LOWER_BOUND
+ len
;
5331 reg
+= sizeof(u32
), image
++) {
5332 val
= iwl3945_read_prph(priv
, reg
);
5333 if (val
!= le32_to_cpu(*image
)) {
5334 IWL_ERROR("BSM uCode verification failed at "
5335 "addr 0x%08X+%u (of %u), is 0x%x, s/b 0x%x\n",
5336 BSM_SRAM_LOWER_BOUND
,
5337 reg
- BSM_SRAM_LOWER_BOUND
, len
,
5338 val
, le32_to_cpu(*image
));
5343 IWL_DEBUG_INFO("BSM bootstrap uCode image OK\n");
5349 * iwl3945_load_bsm - Load bootstrap instructions
5353 * The Bootstrap State Machine (BSM) stores a short bootstrap uCode program
5354 * in special SRAM that does not power down during RFKILL. When powering back
5355 * up after power-saving sleeps (or during initial uCode load), the BSM loads
5356 * the bootstrap program into the on-board processor, and starts it.
5358 * The bootstrap program loads (via DMA) instructions and data for a new
5359 * program from host DRAM locations indicated by the host driver in the
5360 * BSM_DRAM_* registers. Once the new program is loaded, it starts
5363 * When initializing the NIC, the host driver points the BSM to the
5364 * "initialize" uCode image. This uCode sets up some internal data, then
5365 * notifies host via "initialize alive" that it is complete.
5367 * The host then replaces the BSM_DRAM_* pointer values to point to the
5368 * normal runtime uCode instructions and a backup uCode data cache buffer
5369 * (filled initially with starting data values for the on-board processor),
5370 * then triggers the "initialize" uCode to load and launch the runtime uCode,
5371 * which begins normal operation.
5373 * When doing a power-save shutdown, runtime uCode saves data SRAM into
5374 * the backup data cache in DRAM before SRAM is powered down.
5376 * When powering back up, the BSM loads the bootstrap program. This reloads
5377 * the runtime uCode instructions and the backup data cache into SRAM,
5378 * and re-launches the runtime uCode from where it left off.
5380 static int iwl3945_load_bsm(struct iwl3945_priv
*priv
)
5382 __le32
*image
= priv
->ucode_boot
.v_addr
;
5383 u32 len
= priv
->ucode_boot
.len
;
5393 IWL_DEBUG_INFO("Begin load bsm\n");
5395 /* make sure bootstrap program is no larger than BSM's SRAM size */
5396 if (len
> IWL_MAX_BSM_SIZE
)
5399 /* Tell bootstrap uCode where to find the "Initialize" uCode
5400 * in host DRAM ... host DRAM physical address bits 31:0 for 3945.
5401 * NOTE: iwl3945_initialize_alive_start() will replace these values,
5402 * after the "initialize" uCode has run, to point to
5403 * runtime/protocol instructions and backup data cache. */
5404 pinst
= priv
->ucode_init
.p_addr
;
5405 pdata
= priv
->ucode_init_data
.p_addr
;
5406 inst_len
= priv
->ucode_init
.len
;
5407 data_len
= priv
->ucode_init_data
.len
;
5409 rc
= iwl3945_grab_nic_access(priv
);
5413 iwl3945_write_prph(priv
, BSM_DRAM_INST_PTR_REG
, pinst
);
5414 iwl3945_write_prph(priv
, BSM_DRAM_DATA_PTR_REG
, pdata
);
5415 iwl3945_write_prph(priv
, BSM_DRAM_INST_BYTECOUNT_REG
, inst_len
);
5416 iwl3945_write_prph(priv
, BSM_DRAM_DATA_BYTECOUNT_REG
, data_len
);
5418 /* Fill BSM memory with bootstrap instructions */
5419 for (reg_offset
= BSM_SRAM_LOWER_BOUND
;
5420 reg_offset
< BSM_SRAM_LOWER_BOUND
+ len
;
5421 reg_offset
+= sizeof(u32
), image
++)
5422 _iwl3945_write_prph(priv
, reg_offset
,
5423 le32_to_cpu(*image
));
5425 rc
= iwl3945_verify_bsm(priv
);
5427 iwl3945_release_nic_access(priv
);
5431 /* Tell BSM to copy from BSM SRAM into instruction SRAM, when asked */
5432 iwl3945_write_prph(priv
, BSM_WR_MEM_SRC_REG
, 0x0);
5433 iwl3945_write_prph(priv
, BSM_WR_MEM_DST_REG
,
5434 RTC_INST_LOWER_BOUND
);
5435 iwl3945_write_prph(priv
, BSM_WR_DWCOUNT_REG
, len
/ sizeof(u32
));
5437 /* Load bootstrap code into instruction SRAM now,
5438 * to prepare to load "initialize" uCode */
5439 iwl3945_write_prph(priv
, BSM_WR_CTRL_REG
,
5440 BSM_WR_CTRL_REG_BIT_START
);
5442 /* Wait for load of bootstrap uCode to finish */
5443 for (i
= 0; i
< 100; i
++) {
5444 done
= iwl3945_read_prph(priv
, BSM_WR_CTRL_REG
);
5445 if (!(done
& BSM_WR_CTRL_REG_BIT_START
))
5450 IWL_DEBUG_INFO("BSM write complete, poll %d iterations\n", i
);
5452 IWL_ERROR("BSM write did not complete!\n");
5456 /* Enable future boot loads whenever power management unit triggers it
5457 * (e.g. when powering back up after power-save shutdown) */
5458 iwl3945_write_prph(priv
, BSM_WR_CTRL_REG
,
5459 BSM_WR_CTRL_REG_BIT_START_EN
);
5461 iwl3945_release_nic_access(priv
);
5466 static void iwl3945_nic_start(struct iwl3945_priv
*priv
)
5468 /* Remove all resets to allow NIC to operate */
5469 iwl3945_write32(priv
, CSR_RESET
, 0);
5473 * iwl3945_read_ucode - Read uCode images from disk file.
5475 * Copy into buffers for card to fetch via bus-mastering
5477 static int iwl3945_read_ucode(struct iwl3945_priv
*priv
)
5479 struct iwl3945_ucode
*ucode
;
5481 const struct firmware
*ucode_raw
;
5482 /* firmware file name contains uCode/driver compatibility version */
5483 const char *name
= priv
->cfg
->fw_name
;
5486 u32 ver
, inst_size
, data_size
, init_size
, init_data_size
, boot_size
;
5488 /* Ask kernel firmware_class module to get the boot firmware off disk.
5489 * request_firmware() is synchronous, file is in memory on return. */
5490 ret
= request_firmware(&ucode_raw
, name
, &priv
->pci_dev
->dev
);
5492 IWL_ERROR("%s firmware file req failed: Reason %d\n",
5497 IWL_DEBUG_INFO("Got firmware '%s' file (%zd bytes) from disk\n",
5498 name
, ucode_raw
->size
);
5500 /* Make sure that we got at least our header! */
5501 if (ucode_raw
->size
< sizeof(*ucode
)) {
5502 IWL_ERROR("File size way too small!\n");
5507 /* Data from ucode file: header followed by uCode images */
5508 ucode
= (void *)ucode_raw
->data
;
5510 ver
= le32_to_cpu(ucode
->ver
);
5511 inst_size
= le32_to_cpu(ucode
->inst_size
);
5512 data_size
= le32_to_cpu(ucode
->data_size
);
5513 init_size
= le32_to_cpu(ucode
->init_size
);
5514 init_data_size
= le32_to_cpu(ucode
->init_data_size
);
5515 boot_size
= le32_to_cpu(ucode
->boot_size
);
5517 IWL_DEBUG_INFO("f/w package hdr ucode version = 0x%x\n", ver
);
5518 IWL_DEBUG_INFO("f/w package hdr runtime inst size = %u\n", inst_size
);
5519 IWL_DEBUG_INFO("f/w package hdr runtime data size = %u\n", data_size
);
5520 IWL_DEBUG_INFO("f/w package hdr init inst size = %u\n", init_size
);
5521 IWL_DEBUG_INFO("f/w package hdr init data size = %u\n", init_data_size
);
5522 IWL_DEBUG_INFO("f/w package hdr boot inst size = %u\n", boot_size
);
5524 /* Verify size of file vs. image size info in file's header */
5525 if (ucode_raw
->size
< sizeof(*ucode
) +
5526 inst_size
+ data_size
+ init_size
+
5527 init_data_size
+ boot_size
) {
5529 IWL_DEBUG_INFO("uCode file size %d too small\n",
5530 (int)ucode_raw
->size
);
5535 /* Verify that uCode images will fit in card's SRAM */
5536 if (inst_size
> IWL_MAX_INST_SIZE
) {
5537 IWL_DEBUG_INFO("uCode instr len %d too large to fit in\n",
5543 if (data_size
> IWL_MAX_DATA_SIZE
) {
5544 IWL_DEBUG_INFO("uCode data len %d too large to fit in\n",
5549 if (init_size
> IWL_MAX_INST_SIZE
) {
5550 IWL_DEBUG_INFO("uCode init instr len %d too large to fit in\n",
5555 if (init_data_size
> IWL_MAX_DATA_SIZE
) {
5556 IWL_DEBUG_INFO("uCode init data len %d too large to fit in\n",
5561 if (boot_size
> IWL_MAX_BSM_SIZE
) {
5562 IWL_DEBUG_INFO("uCode boot instr len %d too large to fit in\n",
5568 /* Allocate ucode buffers for card's bus-master loading ... */
5570 /* Runtime instructions and 2 copies of data:
5571 * 1) unmodified from disk
5572 * 2) backup cache for save/restore during power-downs */
5573 priv
->ucode_code
.len
= inst_size
;
5574 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_code
);
5576 priv
->ucode_data
.len
= data_size
;
5577 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_data
);
5579 priv
->ucode_data_backup
.len
= data_size
;
5580 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_data_backup
);
5582 if (!priv
->ucode_code
.v_addr
|| !priv
->ucode_data
.v_addr
||
5583 !priv
->ucode_data_backup
.v_addr
)
5586 /* Initialization instructions and data */
5587 if (init_size
&& init_data_size
) {
5588 priv
->ucode_init
.len
= init_size
;
5589 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_init
);
5591 priv
->ucode_init_data
.len
= init_data_size
;
5592 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_init_data
);
5594 if (!priv
->ucode_init
.v_addr
|| !priv
->ucode_init_data
.v_addr
)
5598 /* Bootstrap (instructions only, no data) */
5600 priv
->ucode_boot
.len
= boot_size
;
5601 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_boot
);
5603 if (!priv
->ucode_boot
.v_addr
)
5607 /* Copy images into buffers for card's bus-master reads ... */
5609 /* Runtime instructions (first block of data in file) */
5610 src
= &ucode
->data
[0];
5611 len
= priv
->ucode_code
.len
;
5612 IWL_DEBUG_INFO("Copying (but not loading) uCode instr len %Zd\n", len
);
5613 memcpy(priv
->ucode_code
.v_addr
, src
, len
);
5614 IWL_DEBUG_INFO("uCode instr buf vaddr = 0x%p, paddr = 0x%08x\n",
5615 priv
->ucode_code
.v_addr
, (u32
)priv
->ucode_code
.p_addr
);
5617 /* Runtime data (2nd block)
5618 * NOTE: Copy into backup buffer will be done in iwl3945_up() */
5619 src
= &ucode
->data
[inst_size
];
5620 len
= priv
->ucode_data
.len
;
5621 IWL_DEBUG_INFO("Copying (but not loading) uCode data len %Zd\n", len
);
5622 memcpy(priv
->ucode_data
.v_addr
, src
, len
);
5623 memcpy(priv
->ucode_data_backup
.v_addr
, src
, len
);
5625 /* Initialization instructions (3rd block) */
5627 src
= &ucode
->data
[inst_size
+ data_size
];
5628 len
= priv
->ucode_init
.len
;
5629 IWL_DEBUG_INFO("Copying (but not loading) init instr len %Zd\n",
5631 memcpy(priv
->ucode_init
.v_addr
, src
, len
);
5634 /* Initialization data (4th block) */
5635 if (init_data_size
) {
5636 src
= &ucode
->data
[inst_size
+ data_size
+ init_size
];
5637 len
= priv
->ucode_init_data
.len
;
5638 IWL_DEBUG_INFO("Copying (but not loading) init data len %d\n",
5640 memcpy(priv
->ucode_init_data
.v_addr
, src
, len
);
5643 /* Bootstrap instructions (5th block) */
5644 src
= &ucode
->data
[inst_size
+ data_size
+ init_size
+ init_data_size
];
5645 len
= priv
->ucode_boot
.len
;
5646 IWL_DEBUG_INFO("Copying (but not loading) boot instr len %d\n",
5648 memcpy(priv
->ucode_boot
.v_addr
, src
, len
);
5650 /* We have our copies now, allow OS release its copies */
5651 release_firmware(ucode_raw
);
5655 IWL_ERROR("failed to allocate pci memory\n");
5657 iwl3945_dealloc_ucode_pci(priv
);
5660 release_firmware(ucode_raw
);
5668 * iwl3945_set_ucode_ptrs - Set uCode address location
5670 * Tell initialization uCode where to find runtime uCode.
5672 * BSM registers initially contain pointers to initialization uCode.
5673 * We need to replace them to load runtime uCode inst and data,
5674 * and to save runtime data when powering down.
5676 static int iwl3945_set_ucode_ptrs(struct iwl3945_priv
*priv
)
5681 unsigned long flags
;
5683 /* bits 31:0 for 3945 */
5684 pinst
= priv
->ucode_code
.p_addr
;
5685 pdata
= priv
->ucode_data_backup
.p_addr
;
5687 spin_lock_irqsave(&priv
->lock
, flags
);
5688 rc
= iwl3945_grab_nic_access(priv
);
5690 spin_unlock_irqrestore(&priv
->lock
, flags
);
5694 /* Tell bootstrap uCode where to find image to load */
5695 iwl3945_write_prph(priv
, BSM_DRAM_INST_PTR_REG
, pinst
);
5696 iwl3945_write_prph(priv
, BSM_DRAM_DATA_PTR_REG
, pdata
);
5697 iwl3945_write_prph(priv
, BSM_DRAM_DATA_BYTECOUNT_REG
,
5698 priv
->ucode_data
.len
);
5700 /* Inst bytecount must be last to set up, bit 31 signals uCode
5701 * that all new ptr/size info is in place */
5702 iwl3945_write_prph(priv
, BSM_DRAM_INST_BYTECOUNT_REG
,
5703 priv
->ucode_code
.len
| BSM_DRAM_INST_LOAD
);
5705 iwl3945_release_nic_access(priv
);
5707 spin_unlock_irqrestore(&priv
->lock
, flags
);
5709 IWL_DEBUG_INFO("Runtime uCode pointers are set.\n");
5715 * iwl3945_init_alive_start - Called after REPLY_ALIVE notification received
5717 * Called after REPLY_ALIVE notification received from "initialize" uCode.
5719 * Tell "initialize" uCode to go ahead and load the runtime uCode.
5721 static void iwl3945_init_alive_start(struct iwl3945_priv
*priv
)
5723 /* Check alive response for "valid" sign from uCode */
5724 if (priv
->card_alive_init
.is_valid
!= UCODE_VALID_OK
) {
5725 /* We had an error bringing up the hardware, so take it
5726 * all the way back down so we can try again */
5727 IWL_DEBUG_INFO("Initialize Alive failed.\n");
5731 /* Bootstrap uCode has loaded initialize uCode ... verify inst image.
5732 * This is a paranoid check, because we would not have gotten the
5733 * "initialize" alive if code weren't properly loaded. */
5734 if (iwl3945_verify_ucode(priv
)) {
5735 /* Runtime instruction load was bad;
5736 * take it all the way back down so we can try again */
5737 IWL_DEBUG_INFO("Bad \"initialize\" uCode load.\n");
5741 /* Send pointers to protocol/runtime uCode image ... init code will
5742 * load and launch runtime uCode, which will send us another "Alive"
5744 IWL_DEBUG_INFO("Initialization Alive received.\n");
5745 if (iwl3945_set_ucode_ptrs(priv
)) {
5746 /* Runtime instruction load won't happen;
5747 * take it all the way back down so we can try again */
5748 IWL_DEBUG_INFO("Couldn't set up uCode pointers.\n");
5754 queue_work(priv
->workqueue
, &priv
->restart
);
5759 * iwl3945_alive_start - called after REPLY_ALIVE notification received
5760 * from protocol/runtime uCode (initialization uCode's
5761 * Alive gets handled by iwl3945_init_alive_start()).
5763 static void iwl3945_alive_start(struct iwl3945_priv
*priv
)
5766 int thermal_spin
= 0;
5769 IWL_DEBUG_INFO("Runtime Alive received.\n");
5771 if (priv
->card_alive
.is_valid
!= UCODE_VALID_OK
) {
5772 /* We had an error bringing up the hardware, so take it
5773 * all the way back down so we can try again */
5774 IWL_DEBUG_INFO("Alive failed.\n");
5778 /* Initialize uCode has loaded Runtime uCode ... verify inst image.
5779 * This is a paranoid check, because we would not have gotten the
5780 * "runtime" alive if code weren't properly loaded. */
5781 if (iwl3945_verify_ucode(priv
)) {
5782 /* Runtime instruction load was bad;
5783 * take it all the way back down so we can try again */
5784 IWL_DEBUG_INFO("Bad runtime uCode load.\n");
5788 iwl3945_clear_stations_table(priv
);
5790 rc
= iwl3945_grab_nic_access(priv
);
5792 IWL_WARNING("Can not read rfkill status from adapter\n");
5796 rfkill
= iwl3945_read_prph(priv
, APMG_RFKILL_REG
);
5797 IWL_DEBUG_INFO("RFKILL status: 0x%x\n", rfkill
);
5798 iwl3945_release_nic_access(priv
);
5801 clear_bit(STATUS_RF_KILL_HW
, &priv
->status
);
5802 /* if rfkill is not on, then wait for thermal
5803 * sensor in adapter to kick in */
5804 while (iwl3945_hw_get_temperature(priv
) == 0) {
5810 IWL_DEBUG_INFO("Thermal calibration took %dus\n",
5813 set_bit(STATUS_RF_KILL_HW
, &priv
->status
);
5815 /* After the ALIVE response, we can send commands to 3945 uCode */
5816 set_bit(STATUS_ALIVE
, &priv
->status
);
5818 /* Clear out the uCode error bit if it is set */
5819 clear_bit(STATUS_FW_ERROR
, &priv
->status
);
5821 if (iwl3945_is_rfkill(priv
))
5824 ieee80211_wake_queues(priv
->hw
);
5826 priv
->active_rate
= priv
->rates_mask
;
5827 priv
->active_rate_basic
= priv
->rates_mask
& IWL_BASIC_RATES_MASK
;
5829 iwl3945_send_power_mode(priv
, IWL_POWER_LEVEL(priv
->power_mode
));
5831 if (iwl3945_is_associated(priv
)) {
5832 struct iwl3945_rxon_cmd
*active_rxon
=
5833 (struct iwl3945_rxon_cmd
*)(&priv
->active_rxon
);
5835 memcpy(&priv
->staging_rxon
, &priv
->active_rxon
,
5836 sizeof(priv
->staging_rxon
));
5837 active_rxon
->filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
5839 /* Initialize our rx_config data */
5840 iwl3945_connection_init_rx_config(priv
);
5841 memcpy(priv
->staging_rxon
.node_addr
, priv
->mac_addr
, ETH_ALEN
);
5844 /* Configure Bluetooth device coexistence support */
5845 iwl3945_send_bt_config(priv
);
5847 /* Configure the adapter for unassociated operation */
5848 iwl3945_commit_rxon(priv
);
5850 /* At this point, the NIC is initialized and operational */
5851 priv
->notif_missed_beacons
= 0;
5853 iwl3945_reg_txpower_periodic(priv
);
5855 iwl3945_led_register(priv
);
5857 IWL_DEBUG_INFO("ALIVE processing complete.\n");
5858 set_bit(STATUS_READY
, &priv
->status
);
5859 wake_up_interruptible(&priv
->wait_command_queue
);
5861 if (priv
->error_recovering
)
5862 iwl3945_error_recovery(priv
);
5864 ieee80211_notify_mac(priv
->hw
, IEEE80211_NOTIFY_RE_ASSOC
);
5868 queue_work(priv
->workqueue
, &priv
->restart
);
5871 static void iwl3945_cancel_deferred_work(struct iwl3945_priv
*priv
);
5873 static void __iwl3945_down(struct iwl3945_priv
*priv
)
5875 unsigned long flags
;
5876 int exit_pending
= test_bit(STATUS_EXIT_PENDING
, &priv
->status
);
5877 struct ieee80211_conf
*conf
= NULL
;
5879 IWL_DEBUG_INFO(DRV_NAME
" is going down\n");
5881 conf
= ieee80211_get_hw_conf(priv
->hw
);
5884 set_bit(STATUS_EXIT_PENDING
, &priv
->status
);
5886 iwl3945_led_unregister(priv
);
5887 iwl3945_clear_stations_table(priv
);
5889 /* Unblock any waiting calls */
5890 wake_up_interruptible_all(&priv
->wait_command_queue
);
5892 /* Wipe out the EXIT_PENDING status bit if we are not actually
5893 * exiting the module */
5895 clear_bit(STATUS_EXIT_PENDING
, &priv
->status
);
5897 /* stop and reset the on-board processor */
5898 iwl3945_write32(priv
, CSR_RESET
, CSR_RESET_REG_FLAG_NEVO_RESET
);
5900 /* tell the device to stop sending interrupts */
5901 spin_lock_irqsave(&priv
->lock
, flags
);
5902 iwl3945_disable_interrupts(priv
);
5903 spin_unlock_irqrestore(&priv
->lock
, flags
);
5904 iwl_synchronize_irq(priv
);
5906 if (priv
->mac80211_registered
)
5907 ieee80211_stop_queues(priv
->hw
);
5909 /* If we have not previously called iwl3945_init() then
5910 * clear all bits but the RF Kill and SUSPEND bits and return */
5911 if (!iwl3945_is_init(priv
)) {
5912 priv
->status
= test_bit(STATUS_RF_KILL_HW
, &priv
->status
) <<
5914 test_bit(STATUS_RF_KILL_SW
, &priv
->status
) <<
5916 test_bit(STATUS_GEO_CONFIGURED
, &priv
->status
) <<
5917 STATUS_GEO_CONFIGURED
|
5918 test_bit(STATUS_IN_SUSPEND
, &priv
->status
) <<
5923 /* ...otherwise clear out all the status bits but the RF Kill and
5924 * SUSPEND bits and continue taking the NIC down. */
5925 priv
->status
&= test_bit(STATUS_RF_KILL_HW
, &priv
->status
) <<
5927 test_bit(STATUS_RF_KILL_SW
, &priv
->status
) <<
5929 test_bit(STATUS_GEO_CONFIGURED
, &priv
->status
) <<
5930 STATUS_GEO_CONFIGURED
|
5931 test_bit(STATUS_IN_SUSPEND
, &priv
->status
) <<
5933 test_bit(STATUS_FW_ERROR
, &priv
->status
) <<
5936 spin_lock_irqsave(&priv
->lock
, flags
);
5937 iwl3945_clear_bit(priv
, CSR_GP_CNTRL
, CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ
);
5938 spin_unlock_irqrestore(&priv
->lock
, flags
);
5940 iwl3945_hw_txq_ctx_stop(priv
);
5941 iwl3945_hw_rxq_stop(priv
);
5943 spin_lock_irqsave(&priv
->lock
, flags
);
5944 if (!iwl3945_grab_nic_access(priv
)) {
5945 iwl3945_write_prph(priv
, APMG_CLK_DIS_REG
,
5946 APMG_CLK_VAL_DMA_CLK_RQT
);
5947 iwl3945_release_nic_access(priv
);
5949 spin_unlock_irqrestore(&priv
->lock
, flags
);
5953 iwl3945_hw_nic_stop_master(priv
);
5954 iwl3945_set_bit(priv
, CSR_RESET
, CSR_RESET_REG_FLAG_SW_RESET
);
5955 iwl3945_hw_nic_reset(priv
);
5958 memset(&priv
->card_alive
, 0, sizeof(struct iwl3945_alive_resp
));
5960 if (priv
->ibss_beacon
)
5961 dev_kfree_skb(priv
->ibss_beacon
);
5962 priv
->ibss_beacon
= NULL
;
5964 /* clear out any free frames */
5965 iwl3945_clear_free_frames(priv
);
5968 static void iwl3945_down(struct iwl3945_priv
*priv
)
5970 mutex_lock(&priv
->mutex
);
5971 __iwl3945_down(priv
);
5972 mutex_unlock(&priv
->mutex
);
5974 iwl3945_cancel_deferred_work(priv
);
5977 #define MAX_HW_RESTARTS 5
5979 static int __iwl3945_up(struct iwl3945_priv
*priv
)
5983 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
)) {
5984 IWL_WARNING("Exit pending; will not bring the NIC up\n");
5988 if (test_bit(STATUS_RF_KILL_SW
, &priv
->status
)) {
5989 IWL_WARNING("Radio disabled by SW RF kill (module "
5994 if (!priv
->ucode_data_backup
.v_addr
|| !priv
->ucode_data
.v_addr
) {
5995 IWL_ERROR("ucode not available for device bringup\n");
5999 /* If platform's RF_KILL switch is NOT set to KILL */
6000 if (iwl3945_read32(priv
, CSR_GP_CNTRL
) &
6001 CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW
)
6002 clear_bit(STATUS_RF_KILL_HW
, &priv
->status
);
6004 set_bit(STATUS_RF_KILL_HW
, &priv
->status
);
6005 if (!test_bit(STATUS_IN_SUSPEND
, &priv
->status
)) {
6006 IWL_WARNING("Radio disabled by HW RF Kill switch\n");
6011 iwl3945_write32(priv
, CSR_INT
, 0xFFFFFFFF);
6013 rc
= iwl3945_hw_nic_init(priv
);
6015 IWL_ERROR("Unable to int nic\n");
6019 /* make sure rfkill handshake bits are cleared */
6020 iwl3945_write32(priv
, CSR_UCODE_DRV_GP1_CLR
, CSR_UCODE_SW_BIT_RFKILL
);
6021 iwl3945_write32(priv
, CSR_UCODE_DRV_GP1_CLR
,
6022 CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED
);
6024 /* clear (again), then enable host interrupts */
6025 iwl3945_write32(priv
, CSR_INT
, 0xFFFFFFFF);
6026 iwl3945_enable_interrupts(priv
);
6028 /* really make sure rfkill handshake bits are cleared */
6029 iwl3945_write32(priv
, CSR_UCODE_DRV_GP1_CLR
, CSR_UCODE_SW_BIT_RFKILL
);
6030 iwl3945_write32(priv
, CSR_UCODE_DRV_GP1_CLR
, CSR_UCODE_SW_BIT_RFKILL
);
6032 /* Copy original ucode data image from disk into backup cache.
6033 * This will be used to initialize the on-board processor's
6034 * data SRAM for a clean start when the runtime program first loads. */
6035 memcpy(priv
->ucode_data_backup
.v_addr
, priv
->ucode_data
.v_addr
,
6036 priv
->ucode_data
.len
);
6038 /* We return success when we resume from suspend and rf_kill is on. */
6039 if (test_bit(STATUS_RF_KILL_HW
, &priv
->status
))
6042 for (i
= 0; i
< MAX_HW_RESTARTS
; i
++) {
6044 iwl3945_clear_stations_table(priv
);
6046 /* load bootstrap state machine,
6047 * load bootstrap program into processor's memory,
6048 * prepare to load the "initialize" uCode */
6049 rc
= iwl3945_load_bsm(priv
);
6052 IWL_ERROR("Unable to set up bootstrap uCode: %d\n", rc
);
6056 /* start card; "initialize" will load runtime ucode */
6057 iwl3945_nic_start(priv
);
6059 IWL_DEBUG_INFO(DRV_NAME
" is coming up\n");
6064 set_bit(STATUS_EXIT_PENDING
, &priv
->status
);
6065 __iwl3945_down(priv
);
6067 /* tried to restart and config the device for as long as our
6068 * patience could withstand */
6069 IWL_ERROR("Unable to initialize device after %d attempts.\n", i
);
6074 /*****************************************************************************
6076 * Workqueue callbacks
6078 *****************************************************************************/
6080 static void iwl3945_bg_init_alive_start(struct work_struct
*data
)
6082 struct iwl3945_priv
*priv
=
6083 container_of(data
, struct iwl3945_priv
, init_alive_start
.work
);
6085 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6088 mutex_lock(&priv
->mutex
);
6089 iwl3945_init_alive_start(priv
);
6090 mutex_unlock(&priv
->mutex
);
6093 static void iwl3945_bg_alive_start(struct work_struct
*data
)
6095 struct iwl3945_priv
*priv
=
6096 container_of(data
, struct iwl3945_priv
, alive_start
.work
);
6098 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6101 mutex_lock(&priv
->mutex
);
6102 iwl3945_alive_start(priv
);
6103 mutex_unlock(&priv
->mutex
);
6106 static void iwl3945_bg_rf_kill(struct work_struct
*work
)
6108 struct iwl3945_priv
*priv
= container_of(work
, struct iwl3945_priv
, rf_kill
);
6110 wake_up_interruptible(&priv
->wait_command_queue
);
6112 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6115 mutex_lock(&priv
->mutex
);
6117 if (!iwl3945_is_rfkill(priv
)) {
6118 IWL_DEBUG(IWL_DL_INFO
| IWL_DL_RF_KILL
,
6119 "HW and/or SW RF Kill no longer active, restarting "
6121 if (!test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6122 queue_work(priv
->workqueue
, &priv
->restart
);
6125 if (!test_bit(STATUS_RF_KILL_HW
, &priv
->status
))
6126 IWL_DEBUG_RF_KILL("Can not turn radio back on - "
6127 "disabled by SW switch\n");
6129 IWL_WARNING("Radio Frequency Kill Switch is On:\n"
6130 "Kill switch must be turned off for "
6131 "wireless networking to work.\n");
6133 mutex_unlock(&priv
->mutex
);
6136 static void iwl3945_bg_set_monitor(struct work_struct
*work
)
6138 struct iwl3945_priv
*priv
= container_of(work
,
6139 struct iwl3945_priv
, set_monitor
);
6141 IWL_DEBUG(IWL_DL_STATE
, "setting monitor mode\n");
6143 mutex_lock(&priv
->mutex
);
6145 if (!iwl3945_is_ready(priv
))
6146 IWL_DEBUG(IWL_DL_STATE
, "leave - not ready\n");
6148 if (iwl3945_set_mode(priv
, IEEE80211_IF_TYPE_MNTR
) != 0)
6149 IWL_ERROR("iwl3945_set_mode() failed\n");
6151 mutex_unlock(&priv
->mutex
);
6154 #define IWL_SCAN_CHECK_WATCHDOG (7 * HZ)
6156 static void iwl3945_bg_scan_check(struct work_struct
*data
)
6158 struct iwl3945_priv
*priv
=
6159 container_of(data
, struct iwl3945_priv
, scan_check
.work
);
6161 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6164 mutex_lock(&priv
->mutex
);
6165 if (test_bit(STATUS_SCANNING
, &priv
->status
) ||
6166 test_bit(STATUS_SCAN_ABORTING
, &priv
->status
)) {
6167 IWL_DEBUG(IWL_DL_INFO
| IWL_DL_SCAN
,
6168 "Scan completion watchdog resetting adapter (%dms)\n",
6169 jiffies_to_msecs(IWL_SCAN_CHECK_WATCHDOG
));
6171 if (!test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6172 iwl3945_send_scan_abort(priv
);
6174 mutex_unlock(&priv
->mutex
);
6177 static void iwl3945_bg_request_scan(struct work_struct
*data
)
6179 struct iwl3945_priv
*priv
=
6180 container_of(data
, struct iwl3945_priv
, request_scan
);
6181 struct iwl3945_host_cmd cmd
= {
6182 .id
= REPLY_SCAN_CMD
,
6183 .len
= sizeof(struct iwl3945_scan_cmd
),
6184 .meta
.flags
= CMD_SIZE_HUGE
,
6187 struct iwl3945_scan_cmd
*scan
;
6188 struct ieee80211_conf
*conf
= NULL
;
6190 enum ieee80211_band band
;
6192 conf
= ieee80211_get_hw_conf(priv
->hw
);
6194 mutex_lock(&priv
->mutex
);
6196 if (!iwl3945_is_ready(priv
)) {
6197 IWL_WARNING("request scan called when driver not ready.\n");
6201 /* Make sure the scan wasn't cancelled before this queued work
6202 * was given the chance to run... */
6203 if (!test_bit(STATUS_SCANNING
, &priv
->status
))
6206 /* This should never be called or scheduled if there is currently
6207 * a scan active in the hardware. */
6208 if (test_bit(STATUS_SCAN_HW
, &priv
->status
)) {
6209 IWL_DEBUG_INFO("Multiple concurrent scan requests in parallel. "
6210 "Ignoring second request.\n");
6215 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
)) {
6216 IWL_DEBUG_SCAN("Aborting scan due to device shutdown\n");
6220 if (test_bit(STATUS_SCAN_ABORTING
, &priv
->status
)) {
6221 IWL_DEBUG_HC("Scan request while abort pending. Queuing.\n");
6225 if (iwl3945_is_rfkill(priv
)) {
6226 IWL_DEBUG_HC("Aborting scan due to RF Kill activation\n");
6230 if (!test_bit(STATUS_READY
, &priv
->status
)) {
6231 IWL_DEBUG_HC("Scan request while uninitialized. Queuing.\n");
6235 if (!priv
->scan_bands
) {
6236 IWL_DEBUG_HC("Aborting scan due to no requested bands\n");
6241 priv
->scan
= kmalloc(sizeof(struct iwl3945_scan_cmd
) +
6242 IWL_MAX_SCAN_SIZE
, GFP_KERNEL
);
6249 memset(scan
, 0, sizeof(struct iwl3945_scan_cmd
) + IWL_MAX_SCAN_SIZE
);
6251 scan
->quiet_plcp_th
= IWL_PLCP_QUIET_THRESH
;
6252 scan
->quiet_time
= IWL_ACTIVE_QUIET_TIME
;
6254 if (iwl3945_is_associated(priv
)) {
6257 u32 suspend_time
= 100;
6258 u32 scan_suspend_time
= 100;
6259 unsigned long flags
;
6261 IWL_DEBUG_INFO("Scanning while associated...\n");
6263 spin_lock_irqsave(&priv
->lock
, flags
);
6264 interval
= priv
->beacon_int
;
6265 spin_unlock_irqrestore(&priv
->lock
, flags
);
6267 scan
->suspend_time
= 0;
6268 scan
->max_out_time
= cpu_to_le32(200 * 1024);
6270 interval
= suspend_time
;
6272 * suspend time format:
6273 * 0-19: beacon interval in usec (time before exec.)
6275 * 24-31: number of beacons (suspend between channels)
6278 extra
= (suspend_time
/ interval
) << 24;
6279 scan_suspend_time
= 0xFF0FFFFF &
6280 (extra
| ((suspend_time
% interval
) * 1024));
6282 scan
->suspend_time
= cpu_to_le32(scan_suspend_time
);
6283 IWL_DEBUG_SCAN("suspend_time 0x%X beacon interval %d\n",
6284 scan_suspend_time
, interval
);
6287 /* We should add the ability for user to lock to PASSIVE ONLY */
6288 if (priv
->one_direct_scan
) {
6290 ("Kicking off one direct scan for '%s'\n",
6291 iwl3945_escape_essid(priv
->direct_ssid
,
6292 priv
->direct_ssid_len
));
6293 scan
->direct_scan
[0].id
= WLAN_EID_SSID
;
6294 scan
->direct_scan
[0].len
= priv
->direct_ssid_len
;
6295 memcpy(scan
->direct_scan
[0].ssid
,
6296 priv
->direct_ssid
, priv
->direct_ssid_len
);
6298 } else if (!iwl3945_is_associated(priv
) && priv
->essid_len
) {
6300 ("Kicking off one direct scan for '%s' when not associated\n",
6301 iwl3945_escape_essid(priv
->essid
, priv
->essid_len
));
6302 scan
->direct_scan
[0].id
= WLAN_EID_SSID
;
6303 scan
->direct_scan
[0].len
= priv
->essid_len
;
6304 memcpy(scan
->direct_scan
[0].ssid
, priv
->essid
, priv
->essid_len
);
6307 IWL_DEBUG_SCAN("Kicking off one indirect scan.\n");
6311 /* We don't build a direct scan probe request; the uCode will do
6312 * that based on the direct_mask added to each channel entry */
6313 scan
->tx_cmd
.len
= cpu_to_le16(
6314 iwl3945_fill_probe_req(priv
, (struct ieee80211_mgmt
*)scan
->data
,
6315 IWL_MAX_SCAN_SIZE
- sizeof(*scan
), 0));
6316 scan
->tx_cmd
.tx_flags
= TX_CMD_FLG_SEQ_CTL_MSK
;
6317 scan
->tx_cmd
.sta_id
= priv
->hw_setting
.bcast_sta_id
;
6318 scan
->tx_cmd
.stop_time
.life_time
= TX_CMD_LIFE_TIME_INFINITE
;
6320 /* flags + rate selection */
6322 switch (priv
->scan_bands
) {
6324 scan
->flags
= RXON_FLG_BAND_24G_MSK
| RXON_FLG_AUTO_DETECT_MSK
;
6325 scan
->tx_cmd
.rate
= IWL_RATE_1M_PLCP
;
6326 scan
->good_CRC_th
= 0;
6327 band
= IEEE80211_BAND_2GHZ
;
6331 scan
->tx_cmd
.rate
= IWL_RATE_6M_PLCP
;
6332 scan
->good_CRC_th
= IWL_GOOD_CRC_TH
;
6333 band
= IEEE80211_BAND_5GHZ
;
6337 IWL_WARNING("Invalid scan band count\n");
6341 /* select Rx antennas */
6342 scan
->flags
|= iwl3945_get_antenna_flags(priv
);
6344 if (priv
->iw_mode
== IEEE80211_IF_TYPE_MNTR
)
6345 scan
->filter_flags
= RXON_FILTER_PROMISC_MSK
;
6348 scan
->channel_count
=
6349 iwl3945_get_channels_for_scan(
6350 priv
, band
, 1, /* active */
6352 (void *)&scan
->data
[le16_to_cpu(scan
->tx_cmd
.len
)]);
6354 scan
->channel_count
=
6355 iwl3945_get_channels_for_scan(
6356 priv
, band
, 0, /* passive */
6358 (void *)&scan
->data
[le16_to_cpu(scan
->tx_cmd
.len
)]);
6360 cmd
.len
+= le16_to_cpu(scan
->tx_cmd
.len
) +
6361 scan
->channel_count
* sizeof(struct iwl3945_scan_channel
);
6363 scan
->len
= cpu_to_le16(cmd
.len
);
6365 set_bit(STATUS_SCAN_HW
, &priv
->status
);
6366 rc
= iwl3945_send_cmd_sync(priv
, &cmd
);
6370 queue_delayed_work(priv
->workqueue
, &priv
->scan_check
,
6371 IWL_SCAN_CHECK_WATCHDOG
);
6373 mutex_unlock(&priv
->mutex
);
6377 /* inform mac80211 scan aborted */
6378 queue_work(priv
->workqueue
, &priv
->scan_completed
);
6379 mutex_unlock(&priv
->mutex
);
6382 static void iwl3945_bg_up(struct work_struct
*data
)
6384 struct iwl3945_priv
*priv
= container_of(data
, struct iwl3945_priv
, up
);
6386 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6389 mutex_lock(&priv
->mutex
);
6391 mutex_unlock(&priv
->mutex
);
6394 static void iwl3945_bg_restart(struct work_struct
*data
)
6396 struct iwl3945_priv
*priv
= container_of(data
, struct iwl3945_priv
, restart
);
6398 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6402 queue_work(priv
->workqueue
, &priv
->up
);
6405 static void iwl3945_bg_rx_replenish(struct work_struct
*data
)
6407 struct iwl3945_priv
*priv
=
6408 container_of(data
, struct iwl3945_priv
, rx_replenish
);
6410 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6413 mutex_lock(&priv
->mutex
);
6414 iwl3945_rx_replenish(priv
);
6415 mutex_unlock(&priv
->mutex
);
6418 #define IWL_DELAY_NEXT_SCAN (HZ*2)
6420 static void iwl3945_bg_post_associate(struct work_struct
*data
)
6422 struct iwl3945_priv
*priv
= container_of(data
, struct iwl3945_priv
,
6423 post_associate
.work
);
6426 struct ieee80211_conf
*conf
= NULL
;
6427 DECLARE_MAC_BUF(mac
);
6429 if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) {
6430 IWL_ERROR("%s Should not be called in AP mode\n", __FUNCTION__
);
6435 IWL_DEBUG_ASSOC("Associated as %d to: %s\n",
6437 print_mac(mac
, priv
->active_rxon
.bssid_addr
));
6439 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6442 mutex_lock(&priv
->mutex
);
6444 if (!priv
->vif
|| !priv
->is_open
) {
6445 mutex_unlock(&priv
->mutex
);
6448 iwl3945_scan_cancel_timeout(priv
, 200);
6450 conf
= ieee80211_get_hw_conf(priv
->hw
);
6452 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
6453 iwl3945_commit_rxon(priv
);
6455 memset(&priv
->rxon_timing
, 0, sizeof(struct iwl3945_rxon_time_cmd
));
6456 iwl3945_setup_rxon_timing(priv
);
6457 rc
= iwl3945_send_cmd_pdu(priv
, REPLY_RXON_TIMING
,
6458 sizeof(priv
->rxon_timing
), &priv
->rxon_timing
);
6460 IWL_WARNING("REPLY_RXON_TIMING failed - "
6461 "Attempting to continue.\n");
6463 priv
->staging_rxon
.filter_flags
|= RXON_FILTER_ASSOC_MSK
;
6465 priv
->staging_rxon
.assoc_id
= cpu_to_le16(priv
->assoc_id
);
6467 IWL_DEBUG_ASSOC("assoc id %d beacon interval %d\n",
6468 priv
->assoc_id
, priv
->beacon_int
);
6470 if (priv
->assoc_capability
& WLAN_CAPABILITY_SHORT_PREAMBLE
)
6471 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_PREAMBLE_MSK
;
6473 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_PREAMBLE_MSK
;
6475 if (priv
->staging_rxon
.flags
& RXON_FLG_BAND_24G_MSK
) {
6476 if (priv
->assoc_capability
& WLAN_CAPABILITY_SHORT_SLOT_TIME
)
6477 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_SLOT_MSK
;
6479 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_SLOT_MSK
;
6481 if (priv
->iw_mode
== IEEE80211_IF_TYPE_IBSS
)
6482 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_SLOT_MSK
;
6486 iwl3945_commit_rxon(priv
);
6488 switch (priv
->iw_mode
) {
6489 case IEEE80211_IF_TYPE_STA
:
6490 iwl3945_rate_scale_init(priv
->hw
, IWL_AP_ID
);
6493 case IEEE80211_IF_TYPE_IBSS
:
6495 /* clear out the station table */
6496 iwl3945_clear_stations_table(priv
);
6498 iwl3945_add_station(priv
, iwl3945_broadcast_addr
, 0, 0);
6499 iwl3945_add_station(priv
, priv
->bssid
, 0, 0);
6500 iwl3945_sync_sta(priv
, IWL_STA_ID
,
6501 (priv
->band
== IEEE80211_BAND_5GHZ
) ?
6502 IWL_RATE_6M_PLCP
: IWL_RATE_1M_PLCP
,
6504 iwl3945_rate_scale_init(priv
->hw
, IWL_STA_ID
);
6505 iwl3945_send_beacon_cmd(priv
);
6510 IWL_ERROR("%s Should not be called in %d mode\n",
6511 __FUNCTION__
, priv
->iw_mode
);
6515 iwl3945_sequence_reset(priv
);
6517 iwl3945_activate_qos(priv
, 0);
6519 /* we have just associated, don't start scan too early */
6520 priv
->next_scan_jiffies
= jiffies
+ IWL_DELAY_NEXT_SCAN
;
6521 mutex_unlock(&priv
->mutex
);
6524 static void iwl3945_bg_abort_scan(struct work_struct
*work
)
6526 struct iwl3945_priv
*priv
= container_of(work
, struct iwl3945_priv
, abort_scan
);
6528 if (!iwl3945_is_ready(priv
))
6531 mutex_lock(&priv
->mutex
);
6533 set_bit(STATUS_SCAN_ABORTING
, &priv
->status
);
6534 iwl3945_send_scan_abort(priv
);
6536 mutex_unlock(&priv
->mutex
);
6539 static int iwl3945_mac_config(struct ieee80211_hw
*hw
, struct ieee80211_conf
*conf
);
6541 static void iwl3945_bg_scan_completed(struct work_struct
*work
)
6543 struct iwl3945_priv
*priv
=
6544 container_of(work
, struct iwl3945_priv
, scan_completed
);
6546 IWL_DEBUG(IWL_DL_INFO
| IWL_DL_SCAN
, "SCAN complete scan\n");
6548 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6551 if (test_bit(STATUS_CONF_PENDING
, &priv
->status
))
6552 iwl3945_mac_config(priv
->hw
, ieee80211_get_hw_conf(priv
->hw
));
6554 ieee80211_scan_completed(priv
->hw
);
6556 /* Since setting the TXPOWER may have been deferred while
6557 * performing the scan, fire one off */
6558 mutex_lock(&priv
->mutex
);
6559 iwl3945_hw_reg_send_txpower(priv
);
6560 mutex_unlock(&priv
->mutex
);
6563 /*****************************************************************************
6565 * mac80211 entry point functions
6567 *****************************************************************************/
6569 #define UCODE_READY_TIMEOUT (2 * HZ)
6571 static int iwl3945_mac_start(struct ieee80211_hw
*hw
)
6573 struct iwl3945_priv
*priv
= hw
->priv
;
6576 IWL_DEBUG_MAC80211("enter\n");
6578 if (pci_enable_device(priv
->pci_dev
)) {
6579 IWL_ERROR("Fail to pci_enable_device\n");
6582 pci_restore_state(priv
->pci_dev
);
6583 pci_enable_msi(priv
->pci_dev
);
6585 ret
= request_irq(priv
->pci_dev
->irq
, iwl3945_isr
, IRQF_SHARED
,
6588 IWL_ERROR("Error allocating IRQ %d\n", priv
->pci_dev
->irq
);
6589 goto out_disable_msi
;
6592 /* we should be verifying the device is ready to be opened */
6593 mutex_lock(&priv
->mutex
);
6595 memset(&priv
->staging_rxon
, 0, sizeof(struct iwl3945_rxon_cmd
));
6596 /* fetch ucode file from disk, alloc and copy to bus-master buffers ...
6597 * ucode filename and max sizes are card-specific. */
6599 if (!priv
->ucode_code
.len
) {
6600 ret
= iwl3945_read_ucode(priv
);
6602 IWL_ERROR("Could not read microcode: %d\n", ret
);
6603 mutex_unlock(&priv
->mutex
);
6604 goto out_release_irq
;
6608 ret
= __iwl3945_up(priv
);
6610 mutex_unlock(&priv
->mutex
);
6613 goto out_release_irq
;
6615 IWL_DEBUG_INFO("Start UP work.\n");
6617 if (test_bit(STATUS_IN_SUSPEND
, &priv
->status
))
6620 /* Wait for START_ALIVE from ucode. Otherwise callbacks from
6621 * mac80211 will not be run successfully. */
6622 ret
= wait_event_interruptible_timeout(priv
->wait_command_queue
,
6623 test_bit(STATUS_READY
, &priv
->status
),
6624 UCODE_READY_TIMEOUT
);
6626 if (!test_bit(STATUS_READY
, &priv
->status
)) {
6627 IWL_ERROR("Wait for START_ALIVE timeout after %dms.\n",
6628 jiffies_to_msecs(UCODE_READY_TIMEOUT
));
6630 goto out_release_irq
;
6635 IWL_DEBUG_MAC80211("leave\n");
6639 free_irq(priv
->pci_dev
->irq
, priv
);
6641 pci_disable_msi(priv
->pci_dev
);
6642 pci_disable_device(priv
->pci_dev
);
6644 IWL_DEBUG_MAC80211("leave - failed\n");
6648 static void iwl3945_mac_stop(struct ieee80211_hw
*hw
)
6650 struct iwl3945_priv
*priv
= hw
->priv
;
6652 IWL_DEBUG_MAC80211("enter\n");
6654 if (!priv
->is_open
) {
6655 IWL_DEBUG_MAC80211("leave - skip\n");
6661 if (iwl3945_is_ready_rf(priv
)) {
6662 /* stop mac, cancel any scan request and clear
6663 * RXON_FILTER_ASSOC_MSK BIT
6665 mutex_lock(&priv
->mutex
);
6666 iwl3945_scan_cancel_timeout(priv
, 100);
6667 cancel_delayed_work(&priv
->post_associate
);
6668 mutex_unlock(&priv
->mutex
);
6673 flush_workqueue(priv
->workqueue
);
6674 free_irq(priv
->pci_dev
->irq
, priv
);
6675 pci_disable_msi(priv
->pci_dev
);
6676 pci_save_state(priv
->pci_dev
);
6677 pci_disable_device(priv
->pci_dev
);
6679 IWL_DEBUG_MAC80211("leave\n");
6682 static int iwl3945_mac_tx(struct ieee80211_hw
*hw
, struct sk_buff
*skb
)
6684 struct iwl3945_priv
*priv
= hw
->priv
;
6686 IWL_DEBUG_MAC80211("enter\n");
6688 if (priv
->iw_mode
== IEEE80211_IF_TYPE_MNTR
) {
6689 IWL_DEBUG_MAC80211("leave - monitor\n");
6693 IWL_DEBUG_TX("dev->xmit(%d bytes) at rate 0x%02x\n", skb
->len
,
6694 ieee80211_get_tx_rate(hw
, IEEE80211_SKB_CB(skb
))->bitrate
);
6696 if (iwl3945_tx_skb(priv
, skb
))
6697 dev_kfree_skb_any(skb
);
6699 IWL_DEBUG_MAC80211("leave\n");
6703 static int iwl3945_mac_add_interface(struct ieee80211_hw
*hw
,
6704 struct ieee80211_if_init_conf
*conf
)
6706 struct iwl3945_priv
*priv
= hw
->priv
;
6707 unsigned long flags
;
6708 DECLARE_MAC_BUF(mac
);
6710 IWL_DEBUG_MAC80211("enter: type %d\n", conf
->type
);
6713 IWL_DEBUG_MAC80211("leave - vif != NULL\n");
6717 spin_lock_irqsave(&priv
->lock
, flags
);
6718 priv
->vif
= conf
->vif
;
6720 spin_unlock_irqrestore(&priv
->lock
, flags
);
6722 mutex_lock(&priv
->mutex
);
6724 if (conf
->mac_addr
) {
6725 IWL_DEBUG_MAC80211("Set: %s\n", print_mac(mac
, conf
->mac_addr
));
6726 memcpy(priv
->mac_addr
, conf
->mac_addr
, ETH_ALEN
);
6729 if (iwl3945_is_ready(priv
))
6730 iwl3945_set_mode(priv
, conf
->type
);
6732 mutex_unlock(&priv
->mutex
);
6734 IWL_DEBUG_MAC80211("leave\n");
6739 * iwl3945_mac_config - mac80211 config callback
6741 * We ignore conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME since it seems to
6742 * be set inappropriately and the driver currently sets the hardware up to
6743 * use it whenever needed.
6745 static int iwl3945_mac_config(struct ieee80211_hw
*hw
, struct ieee80211_conf
*conf
)
6747 struct iwl3945_priv
*priv
= hw
->priv
;
6748 const struct iwl3945_channel_info
*ch_info
;
6749 unsigned long flags
;
6752 mutex_lock(&priv
->mutex
);
6753 IWL_DEBUG_MAC80211("enter to channel %d\n", conf
->channel
->hw_value
);
6755 priv
->add_radiotap
= !!(conf
->flags
& IEEE80211_CONF_RADIOTAP
);
6757 if (!iwl3945_is_ready(priv
)) {
6758 IWL_DEBUG_MAC80211("leave - not ready\n");
6763 if (unlikely(!iwl3945_param_disable_hw_scan
&&
6764 test_bit(STATUS_SCANNING
, &priv
->status
))) {
6765 IWL_DEBUG_MAC80211("leave - scanning\n");
6766 set_bit(STATUS_CONF_PENDING
, &priv
->status
);
6767 mutex_unlock(&priv
->mutex
);
6771 spin_lock_irqsave(&priv
->lock
, flags
);
6773 ch_info
= iwl3945_get_channel_info(priv
, conf
->channel
->band
,
6774 conf
->channel
->hw_value
);
6775 if (!is_channel_valid(ch_info
)) {
6776 IWL_DEBUG_SCAN("Channel %d [%d] is INVALID for this SKU.\n",
6777 conf
->channel
->hw_value
, conf
->channel
->band
);
6778 IWL_DEBUG_MAC80211("leave - invalid channel\n");
6779 spin_unlock_irqrestore(&priv
->lock
, flags
);
6784 iwl3945_set_rxon_channel(priv
, conf
->channel
->band
, conf
->channel
->hw_value
);
6786 iwl3945_set_flags_for_phymode(priv
, conf
->channel
->band
);
6788 /* The list of supported rates and rate mask can be different
6789 * for each phymode; since the phymode may have changed, reset
6790 * the rate mask to what mac80211 lists */
6791 iwl3945_set_rate(priv
);
6793 spin_unlock_irqrestore(&priv
->lock
, flags
);
6795 #ifdef IEEE80211_CONF_CHANNEL_SWITCH
6796 if (conf
->flags
& IEEE80211_CONF_CHANNEL_SWITCH
) {
6797 iwl3945_hw_channel_switch(priv
, conf
->channel
);
6802 iwl3945_radio_kill_sw(priv
, !conf
->radio_enabled
);
6804 if (!conf
->radio_enabled
) {
6805 IWL_DEBUG_MAC80211("leave - radio disabled\n");
6809 if (iwl3945_is_rfkill(priv
)) {
6810 IWL_DEBUG_MAC80211("leave - RF kill\n");
6815 iwl3945_set_rate(priv
);
6817 if (memcmp(&priv
->active_rxon
,
6818 &priv
->staging_rxon
, sizeof(priv
->staging_rxon
)))
6819 iwl3945_commit_rxon(priv
);
6821 IWL_DEBUG_INFO("No re-sending same RXON configuration.\n");
6823 IWL_DEBUG_MAC80211("leave\n");
6826 clear_bit(STATUS_CONF_PENDING
, &priv
->status
);
6827 mutex_unlock(&priv
->mutex
);
6831 static void iwl3945_config_ap(struct iwl3945_priv
*priv
)
6835 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6838 /* The following should be done only at AP bring up */
6839 if ((priv
->active_rxon
.filter_flags
& RXON_FILTER_ASSOC_MSK
) == 0) {
6841 /* RXON - unassoc (to set timing command) */
6842 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
6843 iwl3945_commit_rxon(priv
);
6846 memset(&priv
->rxon_timing
, 0, sizeof(struct iwl3945_rxon_time_cmd
));
6847 iwl3945_setup_rxon_timing(priv
);
6848 rc
= iwl3945_send_cmd_pdu(priv
, REPLY_RXON_TIMING
,
6849 sizeof(priv
->rxon_timing
), &priv
->rxon_timing
);
6851 IWL_WARNING("REPLY_RXON_TIMING failed - "
6852 "Attempting to continue.\n");
6854 /* FIXME: what should be the assoc_id for AP? */
6855 priv
->staging_rxon
.assoc_id
= cpu_to_le16(priv
->assoc_id
);
6856 if (priv
->assoc_capability
& WLAN_CAPABILITY_SHORT_PREAMBLE
)
6857 priv
->staging_rxon
.flags
|=
6858 RXON_FLG_SHORT_PREAMBLE_MSK
;
6860 priv
->staging_rxon
.flags
&=
6861 ~RXON_FLG_SHORT_PREAMBLE_MSK
;
6863 if (priv
->staging_rxon
.flags
& RXON_FLG_BAND_24G_MSK
) {
6864 if (priv
->assoc_capability
&
6865 WLAN_CAPABILITY_SHORT_SLOT_TIME
)
6866 priv
->staging_rxon
.flags
|=
6867 RXON_FLG_SHORT_SLOT_MSK
;
6869 priv
->staging_rxon
.flags
&=
6870 ~RXON_FLG_SHORT_SLOT_MSK
;
6872 if (priv
->iw_mode
== IEEE80211_IF_TYPE_IBSS
)
6873 priv
->staging_rxon
.flags
&=
6874 ~RXON_FLG_SHORT_SLOT_MSK
;
6876 /* restore RXON assoc */
6877 priv
->staging_rxon
.filter_flags
|= RXON_FILTER_ASSOC_MSK
;
6878 iwl3945_commit_rxon(priv
);
6879 iwl3945_add_station(priv
, iwl3945_broadcast_addr
, 0, 0);
6881 iwl3945_send_beacon_cmd(priv
);
6883 /* FIXME - we need to add code here to detect a totally new
6884 * configuration, reset the AP, unassoc, rxon timing, assoc,
6885 * clear sta table, add BCAST sta... */
6888 static int iwl3945_mac_config_interface(struct ieee80211_hw
*hw
,
6889 struct ieee80211_vif
*vif
,
6890 struct ieee80211_if_conf
*conf
)
6892 struct iwl3945_priv
*priv
= hw
->priv
;
6893 DECLARE_MAC_BUF(mac
);
6894 unsigned long flags
;
6900 if (priv
->vif
!= vif
) {
6901 IWL_DEBUG_MAC80211("leave - priv->vif != vif\n");
6905 /* XXX: this MUST use conf->mac_addr */
6907 if ((priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) &&
6908 (!conf
->beacon
|| !conf
->ssid_len
)) {
6910 ("Leaving in AP mode because HostAPD is not ready.\n");
6914 if (!iwl3945_is_alive(priv
))
6917 mutex_lock(&priv
->mutex
);
6920 IWL_DEBUG_MAC80211("bssid: %s\n",
6921 print_mac(mac
, conf
->bssid
));
6924 * very dubious code was here; the probe filtering flag is never set:
6926 if (unlikely(test_bit(STATUS_SCANNING, &priv->status)) &&
6927 !(priv->hw->flags & IEEE80211_HW_NO_PROBE_FILTERING)) {
6930 if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) {
6932 conf
->bssid
= priv
->mac_addr
;
6933 memcpy(priv
->bssid
, priv
->mac_addr
, ETH_ALEN
);
6934 IWL_DEBUG_MAC80211("bssid was set to: %s\n",
6935 print_mac(mac
, conf
->bssid
));
6937 if (priv
->ibss_beacon
)
6938 dev_kfree_skb(priv
->ibss_beacon
);
6940 priv
->ibss_beacon
= conf
->beacon
;
6943 if (iwl3945_is_rfkill(priv
))
6946 if (conf
->bssid
&& !is_zero_ether_addr(conf
->bssid
) &&
6947 !is_multicast_ether_addr(conf
->bssid
)) {
6948 /* If there is currently a HW scan going on in the background
6949 * then we need to cancel it else the RXON below will fail. */
6950 if (iwl3945_scan_cancel_timeout(priv
, 100)) {
6951 IWL_WARNING("Aborted scan still in progress "
6953 IWL_DEBUG_MAC80211("leaving - scan abort failed.\n");
6954 mutex_unlock(&priv
->mutex
);
6957 memcpy(priv
->staging_rxon
.bssid_addr
, conf
->bssid
, ETH_ALEN
);
6959 /* TODO: Audit driver for usage of these members and see
6960 * if mac80211 deprecates them (priv->bssid looks like it
6961 * shouldn't be there, but I haven't scanned the IBSS code
6962 * to verify) - jpk */
6963 memcpy(priv
->bssid
, conf
->bssid
, ETH_ALEN
);
6965 if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
)
6966 iwl3945_config_ap(priv
);
6968 rc
= iwl3945_commit_rxon(priv
);
6969 if ((priv
->iw_mode
== IEEE80211_IF_TYPE_STA
) && rc
)
6970 iwl3945_add_station(priv
,
6971 priv
->active_rxon
.bssid_addr
, 1, 0);
6975 iwl3945_scan_cancel_timeout(priv
, 100);
6976 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
6977 iwl3945_commit_rxon(priv
);
6981 spin_lock_irqsave(&priv
->lock
, flags
);
6982 if (!conf
->ssid_len
)
6983 memset(priv
->essid
, 0, IW_ESSID_MAX_SIZE
);
6985 memcpy(priv
->essid
, conf
->ssid
, conf
->ssid_len
);
6987 priv
->essid_len
= conf
->ssid_len
;
6988 spin_unlock_irqrestore(&priv
->lock
, flags
);
6990 IWL_DEBUG_MAC80211("leave\n");
6991 mutex_unlock(&priv
->mutex
);
6996 static void iwl3945_configure_filter(struct ieee80211_hw
*hw
,
6997 unsigned int changed_flags
,
6998 unsigned int *total_flags
,
6999 int mc_count
, struct dev_addr_list
*mc_list
)
7003 * see also iwl3945_connection_init_rx_config
7005 struct iwl3945_priv
*priv
= hw
->priv
;
7007 if (changed_flags
& (FIF_PROMISC_IN_BSS
| FIF_OTHER_BSS
)) {
7008 if (*total_flags
& (FIF_PROMISC_IN_BSS
| FIF_OTHER_BSS
)) {
7009 IWL_DEBUG_MAC80211("Enter: type %d (0x%x, 0x%x)\n",
7010 IEEE80211_IF_TYPE_MNTR
,
7011 changed_flags
, *total_flags
);
7012 /* queue work 'cuz mac80211 is holding a lock which
7013 * prevents us from issuing (synchronous) f/w cmds */
7014 queue_work(priv
->workqueue
, &priv
->set_monitor
);
7015 new_flags
&= FIF_PROMISC_IN_BSS
|
7020 *total_flags
= new_flags
;
7023 static void iwl3945_mac_remove_interface(struct ieee80211_hw
*hw
,
7024 struct ieee80211_if_init_conf
*conf
)
7026 struct iwl3945_priv
*priv
= hw
->priv
;
7028 IWL_DEBUG_MAC80211("enter\n");
7030 mutex_lock(&priv
->mutex
);
7032 if (iwl3945_is_ready_rf(priv
)) {
7033 iwl3945_scan_cancel_timeout(priv
, 100);
7034 cancel_delayed_work(&priv
->post_associate
);
7035 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
7036 iwl3945_commit_rxon(priv
);
7038 if (priv
->vif
== conf
->vif
) {
7040 memset(priv
->bssid
, 0, ETH_ALEN
);
7041 memset(priv
->essid
, 0, IW_ESSID_MAX_SIZE
);
7042 priv
->essid_len
= 0;
7044 mutex_unlock(&priv
->mutex
);
7046 IWL_DEBUG_MAC80211("leave\n");
7049 static int iwl3945_mac_hw_scan(struct ieee80211_hw
*hw
, u8
*ssid
, size_t len
)
7052 unsigned long flags
;
7053 struct iwl3945_priv
*priv
= hw
->priv
;
7055 IWL_DEBUG_MAC80211("enter\n");
7057 mutex_lock(&priv
->mutex
);
7058 spin_lock_irqsave(&priv
->lock
, flags
);
7060 if (!iwl3945_is_ready_rf(priv
)) {
7062 IWL_DEBUG_MAC80211("leave - not ready or exit pending\n");
7066 if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) { /* APs don't scan */
7068 IWL_ERROR("ERROR: APs don't scan\n");
7072 /* we don't schedule scan within next_scan_jiffies period */
7073 if (priv
->next_scan_jiffies
&&
7074 time_after(priv
->next_scan_jiffies
, jiffies
)) {
7078 /* if we just finished scan ask for delay for a broadcast scan */
7079 if ((len
== 0) && priv
->last_scan_jiffies
&&
7080 time_after(priv
->last_scan_jiffies
+ IWL_DELAY_NEXT_SCAN
,
7086 IWL_DEBUG_SCAN("direct scan for %s [%d]\n ",
7087 iwl3945_escape_essid(ssid
, len
), (int)len
);
7089 priv
->one_direct_scan
= 1;
7090 priv
->direct_ssid_len
= (u8
)
7091 min((u8
) len
, (u8
) IW_ESSID_MAX_SIZE
);
7092 memcpy(priv
->direct_ssid
, ssid
, priv
->direct_ssid_len
);
7094 priv
->one_direct_scan
= 0;
7096 rc
= iwl3945_scan_initiate(priv
);
7098 IWL_DEBUG_MAC80211("leave\n");
7101 spin_unlock_irqrestore(&priv
->lock
, flags
);
7102 mutex_unlock(&priv
->mutex
);
7107 static int iwl3945_mac_set_key(struct ieee80211_hw
*hw
, enum set_key_cmd cmd
,
7108 const u8
*local_addr
, const u8
*addr
,
7109 struct ieee80211_key_conf
*key
)
7111 struct iwl3945_priv
*priv
= hw
->priv
;
7115 IWL_DEBUG_MAC80211("enter\n");
7117 if (!iwl3945_param_hwcrypto
) {
7118 IWL_DEBUG_MAC80211("leave - hwcrypto disabled\n");
7122 if (is_zero_ether_addr(addr
))
7123 /* only support pairwise keys */
7126 sta_id
= iwl3945_hw_find_station(priv
, addr
);
7127 if (sta_id
== IWL_INVALID_STATION
) {
7128 DECLARE_MAC_BUF(mac
);
7130 IWL_DEBUG_MAC80211("leave - %s not in station map.\n",
7131 print_mac(mac
, addr
));
7135 mutex_lock(&priv
->mutex
);
7137 iwl3945_scan_cancel_timeout(priv
, 100);
7141 rc
= iwl3945_update_sta_key_info(priv
, key
, sta_id
);
7143 iwl3945_set_rxon_hwcrypto(priv
, 1);
7144 iwl3945_commit_rxon(priv
);
7145 key
->hw_key_idx
= sta_id
;
7146 IWL_DEBUG_MAC80211("set_key success, using hwcrypto\n");
7147 key
->flags
|= IEEE80211_KEY_FLAG_GENERATE_IV
;
7151 rc
= iwl3945_clear_sta_key_info(priv
, sta_id
);
7153 iwl3945_set_rxon_hwcrypto(priv
, 0);
7154 iwl3945_commit_rxon(priv
);
7155 IWL_DEBUG_MAC80211("disable hwcrypto key\n");
7162 IWL_DEBUG_MAC80211("leave\n");
7163 mutex_unlock(&priv
->mutex
);
7168 static int iwl3945_mac_conf_tx(struct ieee80211_hw
*hw
, u16 queue
,
7169 const struct ieee80211_tx_queue_params
*params
)
7171 struct iwl3945_priv
*priv
= hw
->priv
;
7172 unsigned long flags
;
7175 IWL_DEBUG_MAC80211("enter\n");
7177 if (!iwl3945_is_ready_rf(priv
)) {
7178 IWL_DEBUG_MAC80211("leave - RF not ready\n");
7182 if (queue
>= AC_NUM
) {
7183 IWL_DEBUG_MAC80211("leave - queue >= AC_NUM %d\n", queue
);
7187 if (!priv
->qos_data
.qos_enable
) {
7188 priv
->qos_data
.qos_active
= 0;
7189 IWL_DEBUG_MAC80211("leave - qos not enabled\n");
7192 q
= AC_NUM
- 1 - queue
;
7194 spin_lock_irqsave(&priv
->lock
, flags
);
7196 priv
->qos_data
.def_qos_parm
.ac
[q
].cw_min
= cpu_to_le16(params
->cw_min
);
7197 priv
->qos_data
.def_qos_parm
.ac
[q
].cw_max
= cpu_to_le16(params
->cw_max
);
7198 priv
->qos_data
.def_qos_parm
.ac
[q
].aifsn
= params
->aifs
;
7199 priv
->qos_data
.def_qos_parm
.ac
[q
].edca_txop
=
7200 cpu_to_le16((params
->txop
* 32));
7202 priv
->qos_data
.def_qos_parm
.ac
[q
].reserved1
= 0;
7203 priv
->qos_data
.qos_active
= 1;
7205 spin_unlock_irqrestore(&priv
->lock
, flags
);
7207 mutex_lock(&priv
->mutex
);
7208 if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
)
7209 iwl3945_activate_qos(priv
, 1);
7210 else if (priv
->assoc_id
&& iwl3945_is_associated(priv
))
7211 iwl3945_activate_qos(priv
, 0);
7213 mutex_unlock(&priv
->mutex
);
7215 IWL_DEBUG_MAC80211("leave\n");
7219 static int iwl3945_mac_get_tx_stats(struct ieee80211_hw
*hw
,
7220 struct ieee80211_tx_queue_stats
*stats
)
7222 struct iwl3945_priv
*priv
= hw
->priv
;
7224 struct iwl3945_tx_queue
*txq
;
7225 struct iwl3945_queue
*q
;
7226 unsigned long flags
;
7228 IWL_DEBUG_MAC80211("enter\n");
7230 if (!iwl3945_is_ready_rf(priv
)) {
7231 IWL_DEBUG_MAC80211("leave - RF not ready\n");
7235 spin_lock_irqsave(&priv
->lock
, flags
);
7237 for (i
= 0; i
< AC_NUM
; i
++) {
7238 txq
= &priv
->txq
[i
];
7240 avail
= iwl3945_queue_space(q
);
7242 stats
[i
].len
= q
->n_window
- avail
;
7243 stats
[i
].limit
= q
->n_window
- q
->high_mark
;
7244 stats
[i
].count
= q
->n_window
;
7247 spin_unlock_irqrestore(&priv
->lock
, flags
);
7249 IWL_DEBUG_MAC80211("leave\n");
7254 static int iwl3945_mac_get_stats(struct ieee80211_hw
*hw
,
7255 struct ieee80211_low_level_stats
*stats
)
7257 IWL_DEBUG_MAC80211("enter\n");
7258 IWL_DEBUG_MAC80211("leave\n");
7263 static u64
iwl3945_mac_get_tsf(struct ieee80211_hw
*hw
)
7265 IWL_DEBUG_MAC80211("enter\n");
7266 IWL_DEBUG_MAC80211("leave\n");
7271 static void iwl3945_mac_reset_tsf(struct ieee80211_hw
*hw
)
7273 struct iwl3945_priv
*priv
= hw
->priv
;
7274 unsigned long flags
;
7276 mutex_lock(&priv
->mutex
);
7277 IWL_DEBUG_MAC80211("enter\n");
7279 iwl3945_reset_qos(priv
);
7281 cancel_delayed_work(&priv
->post_associate
);
7283 spin_lock_irqsave(&priv
->lock
, flags
);
7285 priv
->assoc_capability
= 0;
7286 priv
->call_post_assoc_from_beacon
= 0;
7288 /* new association get rid of ibss beacon skb */
7289 if (priv
->ibss_beacon
)
7290 dev_kfree_skb(priv
->ibss_beacon
);
7292 priv
->ibss_beacon
= NULL
;
7294 priv
->beacon_int
= priv
->hw
->conf
.beacon_int
;
7295 priv
->timestamp1
= 0;
7296 priv
->timestamp0
= 0;
7297 if ((priv
->iw_mode
== IEEE80211_IF_TYPE_STA
))
7298 priv
->beacon_int
= 0;
7300 spin_unlock_irqrestore(&priv
->lock
, flags
);
7302 if (!iwl3945_is_ready_rf(priv
)) {
7303 IWL_DEBUG_MAC80211("leave - not ready\n");
7304 mutex_unlock(&priv
->mutex
);
7308 /* we are restarting association process
7309 * clear RXON_FILTER_ASSOC_MSK bit
7311 if (priv
->iw_mode
!= IEEE80211_IF_TYPE_AP
) {
7312 iwl3945_scan_cancel_timeout(priv
, 100);
7313 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
7314 iwl3945_commit_rxon(priv
);
7317 /* Per mac80211.h: This is only used in IBSS mode... */
7318 if (priv
->iw_mode
!= IEEE80211_IF_TYPE_IBSS
) {
7320 IWL_DEBUG_MAC80211("leave - not in IBSS\n");
7321 mutex_unlock(&priv
->mutex
);
7325 iwl3945_set_rate(priv
);
7327 mutex_unlock(&priv
->mutex
);
7329 IWL_DEBUG_MAC80211("leave\n");
7333 static int iwl3945_mac_beacon_update(struct ieee80211_hw
*hw
, struct sk_buff
*skb
)
7335 struct iwl3945_priv
*priv
= hw
->priv
;
7336 unsigned long flags
;
7338 mutex_lock(&priv
->mutex
);
7339 IWL_DEBUG_MAC80211("enter\n");
7341 if (!iwl3945_is_ready_rf(priv
)) {
7342 IWL_DEBUG_MAC80211("leave - RF not ready\n");
7343 mutex_unlock(&priv
->mutex
);
7347 if (priv
->iw_mode
!= IEEE80211_IF_TYPE_IBSS
) {
7348 IWL_DEBUG_MAC80211("leave - not IBSS\n");
7349 mutex_unlock(&priv
->mutex
);
7353 spin_lock_irqsave(&priv
->lock
, flags
);
7355 if (priv
->ibss_beacon
)
7356 dev_kfree_skb(priv
->ibss_beacon
);
7358 priv
->ibss_beacon
= skb
;
7362 IWL_DEBUG_MAC80211("leave\n");
7363 spin_unlock_irqrestore(&priv
->lock
, flags
);
7365 iwl3945_reset_qos(priv
);
7367 queue_work(priv
->workqueue
, &priv
->post_associate
.work
);
7369 mutex_unlock(&priv
->mutex
);
7374 /*****************************************************************************
7378 *****************************************************************************/
7380 #ifdef CONFIG_IWL3945_DEBUG
7383 * The following adds a new attribute to the sysfs representation
7384 * of this device driver (i.e. a new file in /sys/bus/pci/drivers/iwl/)
7385 * used for controlling the debug level.
7387 * See the level definitions in iwl for details.
7390 static ssize_t
show_debug_level(struct device_driver
*d
, char *buf
)
7392 return sprintf(buf
, "0x%08X\n", iwl3945_debug_level
);
7394 static ssize_t
store_debug_level(struct device_driver
*d
,
7395 const char *buf
, size_t count
)
7397 char *p
= (char *)buf
;
7400 val
= simple_strtoul(p
, &p
, 0);
7402 printk(KERN_INFO DRV_NAME
7403 ": %s is not in hex or decimal form.\n", buf
);
7405 iwl3945_debug_level
= val
;
7407 return strnlen(buf
, count
);
7410 static DRIVER_ATTR(debug_level
, S_IWUSR
| S_IRUGO
,
7411 show_debug_level
, store_debug_level
);
7413 #endif /* CONFIG_IWL3945_DEBUG */
7415 static ssize_t
show_rf_kill(struct device
*d
,
7416 struct device_attribute
*attr
, char *buf
)
7419 * 0 - RF kill not enabled
7420 * 1 - SW based RF kill active (sysfs)
7421 * 2 - HW based RF kill active
7422 * 3 - Both HW and SW based RF kill active
7424 struct iwl3945_priv
*priv
= (struct iwl3945_priv
*)d
->driver_data
;
7425 int val
= (test_bit(STATUS_RF_KILL_SW
, &priv
->status
) ? 0x1 : 0x0) |
7426 (test_bit(STATUS_RF_KILL_HW
, &priv
->status
) ? 0x2 : 0x0);
7428 return sprintf(buf
, "%i\n", val
);
7431 static ssize_t
store_rf_kill(struct device
*d
,
7432 struct device_attribute
*attr
,
7433 const char *buf
, size_t count
)
7435 struct iwl3945_priv
*priv
= (struct iwl3945_priv
*)d
->driver_data
;
7437 mutex_lock(&priv
->mutex
);
7438 iwl3945_radio_kill_sw(priv
, buf
[0] == '1');
7439 mutex_unlock(&priv
->mutex
);
7444 static DEVICE_ATTR(rf_kill
, S_IWUSR
| S_IRUGO
, show_rf_kill
, store_rf_kill
);
7446 static ssize_t
show_temperature(struct device
*d
,
7447 struct device_attribute
*attr
, char *buf
)
7449 struct iwl3945_priv
*priv
= (struct iwl3945_priv
*)d
->driver_data
;
7451 if (!iwl3945_is_alive(priv
))
7454 return sprintf(buf
, "%d\n", iwl3945_hw_get_temperature(priv
));
7457 static DEVICE_ATTR(temperature
, S_IRUGO
, show_temperature
, NULL
);
7459 static ssize_t
show_rs_window(struct device
*d
,
7460 struct device_attribute
*attr
,
7463 struct iwl3945_priv
*priv
= d
->driver_data
;
7464 return iwl3945_fill_rs_info(priv
->hw
, buf
, IWL_AP_ID
);
7466 static DEVICE_ATTR(rs_window
, S_IRUGO
, show_rs_window
, NULL
);
7468 static ssize_t
show_tx_power(struct device
*d
,
7469 struct device_attribute
*attr
, char *buf
)
7471 struct iwl3945_priv
*priv
= (struct iwl3945_priv
*)d
->driver_data
;
7472 return sprintf(buf
, "%d\n", priv
->user_txpower_limit
);
7475 static ssize_t
store_tx_power(struct device
*d
,
7476 struct device_attribute
*attr
,
7477 const char *buf
, size_t count
)
7479 struct iwl3945_priv
*priv
= (struct iwl3945_priv
*)d
->driver_data
;
7480 char *p
= (char *)buf
;
7483 val
= simple_strtoul(p
, &p
, 10);
7485 printk(KERN_INFO DRV_NAME
7486 ": %s is not in decimal form.\n", buf
);
7488 iwl3945_hw_reg_set_txpower(priv
, val
);
7493 static DEVICE_ATTR(tx_power
, S_IWUSR
| S_IRUGO
, show_tx_power
, store_tx_power
);
7495 static ssize_t
show_flags(struct device
*d
,
7496 struct device_attribute
*attr
, char *buf
)
7498 struct iwl3945_priv
*priv
= (struct iwl3945_priv
*)d
->driver_data
;
7500 return sprintf(buf
, "0x%04X\n", priv
->active_rxon
.flags
);
7503 static ssize_t
store_flags(struct device
*d
,
7504 struct device_attribute
*attr
,
7505 const char *buf
, size_t count
)
7507 struct iwl3945_priv
*priv
= (struct iwl3945_priv
*)d
->driver_data
;
7508 u32 flags
= simple_strtoul(buf
, NULL
, 0);
7510 mutex_lock(&priv
->mutex
);
7511 if (le32_to_cpu(priv
->staging_rxon
.flags
) != flags
) {
7512 /* Cancel any currently running scans... */
7513 if (iwl3945_scan_cancel_timeout(priv
, 100))
7514 IWL_WARNING("Could not cancel scan.\n");
7516 IWL_DEBUG_INFO("Committing rxon.flags = 0x%04X\n",
7518 priv
->staging_rxon
.flags
= cpu_to_le32(flags
);
7519 iwl3945_commit_rxon(priv
);
7522 mutex_unlock(&priv
->mutex
);
7527 static DEVICE_ATTR(flags
, S_IWUSR
| S_IRUGO
, show_flags
, store_flags
);
7529 static ssize_t
show_filter_flags(struct device
*d
,
7530 struct device_attribute
*attr
, char *buf
)
7532 struct iwl3945_priv
*priv
= (struct iwl3945_priv
*)d
->driver_data
;
7534 return sprintf(buf
, "0x%04X\n",
7535 le32_to_cpu(priv
->active_rxon
.filter_flags
));
7538 static ssize_t
store_filter_flags(struct device
*d
,
7539 struct device_attribute
*attr
,
7540 const char *buf
, size_t count
)
7542 struct iwl3945_priv
*priv
= (struct iwl3945_priv
*)d
->driver_data
;
7543 u32 filter_flags
= simple_strtoul(buf
, NULL
, 0);
7545 mutex_lock(&priv
->mutex
);
7546 if (le32_to_cpu(priv
->staging_rxon
.filter_flags
) != filter_flags
) {
7547 /* Cancel any currently running scans... */
7548 if (iwl3945_scan_cancel_timeout(priv
, 100))
7549 IWL_WARNING("Could not cancel scan.\n");
7551 IWL_DEBUG_INFO("Committing rxon.filter_flags = "
7552 "0x%04X\n", filter_flags
);
7553 priv
->staging_rxon
.filter_flags
=
7554 cpu_to_le32(filter_flags
);
7555 iwl3945_commit_rxon(priv
);
7558 mutex_unlock(&priv
->mutex
);
7563 static DEVICE_ATTR(filter_flags
, S_IWUSR
| S_IRUGO
, show_filter_flags
,
7564 store_filter_flags
);
7566 #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT
7568 static ssize_t
show_measurement(struct device
*d
,
7569 struct device_attribute
*attr
, char *buf
)
7571 struct iwl3945_priv
*priv
= dev_get_drvdata(d
);
7572 struct iwl3945_spectrum_notification measure_report
;
7573 u32 size
= sizeof(measure_report
), len
= 0, ofs
= 0;
7574 u8
*data
= (u8
*) & measure_report
;
7575 unsigned long flags
;
7577 spin_lock_irqsave(&priv
->lock
, flags
);
7578 if (!(priv
->measurement_status
& MEASUREMENT_READY
)) {
7579 spin_unlock_irqrestore(&priv
->lock
, flags
);
7582 memcpy(&measure_report
, &priv
->measure_report
, size
);
7583 priv
->measurement_status
= 0;
7584 spin_unlock_irqrestore(&priv
->lock
, flags
);
7586 while (size
&& (PAGE_SIZE
- len
)) {
7587 hex_dump_to_buffer(data
+ ofs
, size
, 16, 1, buf
+ len
,
7588 PAGE_SIZE
- len
, 1);
7590 if (PAGE_SIZE
- len
)
7594 size
-= min(size
, 16U);
7600 static ssize_t
store_measurement(struct device
*d
,
7601 struct device_attribute
*attr
,
7602 const char *buf
, size_t count
)
7604 struct iwl3945_priv
*priv
= dev_get_drvdata(d
);
7605 struct ieee80211_measurement_params params
= {
7606 .channel
= le16_to_cpu(priv
->active_rxon
.channel
),
7607 .start_time
= cpu_to_le64(priv
->last_tsf
),
7608 .duration
= cpu_to_le16(1),
7610 u8 type
= IWL_MEASURE_BASIC
;
7616 strncpy(buffer
, buf
, min(sizeof(buffer
), count
));
7617 channel
= simple_strtoul(p
, NULL
, 0);
7619 params
.channel
= channel
;
7622 while (*p
&& *p
!= ' ')
7625 type
= simple_strtoul(p
+ 1, NULL
, 0);
7628 IWL_DEBUG_INFO("Invoking measurement of type %d on "
7629 "channel %d (for '%s')\n", type
, params
.channel
, buf
);
7630 iwl3945_get_measurement(priv
, ¶ms
, type
);
7635 static DEVICE_ATTR(measurement
, S_IRUSR
| S_IWUSR
,
7636 show_measurement
, store_measurement
);
7637 #endif /* CONFIG_IWL3945_SPECTRUM_MEASUREMENT */
7639 static ssize_t
store_retry_rate(struct device
*d
,
7640 struct device_attribute
*attr
,
7641 const char *buf
, size_t count
)
7643 struct iwl3945_priv
*priv
= dev_get_drvdata(d
);
7645 priv
->retry_rate
= simple_strtoul(buf
, NULL
, 0);
7646 if (priv
->retry_rate
<= 0)
7647 priv
->retry_rate
= 1;
7652 static ssize_t
show_retry_rate(struct device
*d
,
7653 struct device_attribute
*attr
, char *buf
)
7655 struct iwl3945_priv
*priv
= dev_get_drvdata(d
);
7656 return sprintf(buf
, "%d", priv
->retry_rate
);
7659 static DEVICE_ATTR(retry_rate
, S_IWUSR
| S_IRUSR
, show_retry_rate
,
7662 static ssize_t
store_power_level(struct device
*d
,
7663 struct device_attribute
*attr
,
7664 const char *buf
, size_t count
)
7666 struct iwl3945_priv
*priv
= dev_get_drvdata(d
);
7670 mode
= simple_strtoul(buf
, NULL
, 0);
7671 mutex_lock(&priv
->mutex
);
7673 if (!iwl3945_is_ready(priv
)) {
7678 if ((mode
< 1) || (mode
> IWL_POWER_LIMIT
) || (mode
== IWL_POWER_AC
))
7679 mode
= IWL_POWER_AC
;
7681 mode
|= IWL_POWER_ENABLED
;
7683 if (mode
!= priv
->power_mode
) {
7684 rc
= iwl3945_send_power_mode(priv
, IWL_POWER_LEVEL(mode
));
7686 IWL_DEBUG_MAC80211("failed setting power mode.\n");
7689 priv
->power_mode
= mode
;
7695 mutex_unlock(&priv
->mutex
);
7699 #define MAX_WX_STRING 80
7701 /* Values are in microsecond */
7702 static const s32 timeout_duration
[] = {
7709 static const s32 period_duration
[] = {
7717 static ssize_t
show_power_level(struct device
*d
,
7718 struct device_attribute
*attr
, char *buf
)
7720 struct iwl3945_priv
*priv
= dev_get_drvdata(d
);
7721 int level
= IWL_POWER_LEVEL(priv
->power_mode
);
7724 p
+= sprintf(p
, "%d ", level
);
7726 case IWL_POWER_MODE_CAM
:
7728 p
+= sprintf(p
, "(AC)");
7730 case IWL_POWER_BATTERY
:
7731 p
+= sprintf(p
, "(BATTERY)");
7735 "(Timeout %dms, Period %dms)",
7736 timeout_duration
[level
- 1] / 1000,
7737 period_duration
[level
- 1] / 1000);
7740 if (!(priv
->power_mode
& IWL_POWER_ENABLED
))
7741 p
+= sprintf(p
, " OFF\n");
7743 p
+= sprintf(p
, " \n");
7745 return (p
- buf
+ 1);
7749 static DEVICE_ATTR(power_level
, S_IWUSR
| S_IRUSR
, show_power_level
,
7752 static ssize_t
show_channels(struct device
*d
,
7753 struct device_attribute
*attr
, char *buf
)
7755 /* all this shit doesn't belong into sysfs anyway */
7759 static DEVICE_ATTR(channels
, S_IRUSR
, show_channels
, NULL
);
7761 static ssize_t
show_statistics(struct device
*d
,
7762 struct device_attribute
*attr
, char *buf
)
7764 struct iwl3945_priv
*priv
= dev_get_drvdata(d
);
7765 u32 size
= sizeof(struct iwl3945_notif_statistics
);
7766 u32 len
= 0, ofs
= 0;
7767 u8
*data
= (u8
*) & priv
->statistics
;
7770 if (!iwl3945_is_alive(priv
))
7773 mutex_lock(&priv
->mutex
);
7774 rc
= iwl3945_send_statistics_request(priv
);
7775 mutex_unlock(&priv
->mutex
);
7779 "Error sending statistics request: 0x%08X\n", rc
);
7783 while (size
&& (PAGE_SIZE
- len
)) {
7784 hex_dump_to_buffer(data
+ ofs
, size
, 16, 1, buf
+ len
,
7785 PAGE_SIZE
- len
, 1);
7787 if (PAGE_SIZE
- len
)
7791 size
-= min(size
, 16U);
7797 static DEVICE_ATTR(statistics
, S_IRUGO
, show_statistics
, NULL
);
7799 static ssize_t
show_antenna(struct device
*d
,
7800 struct device_attribute
*attr
, char *buf
)
7802 struct iwl3945_priv
*priv
= dev_get_drvdata(d
);
7804 if (!iwl3945_is_alive(priv
))
7807 return sprintf(buf
, "%d\n", priv
->antenna
);
7810 static ssize_t
store_antenna(struct device
*d
,
7811 struct device_attribute
*attr
,
7812 const char *buf
, size_t count
)
7815 struct iwl3945_priv
*priv
= dev_get_drvdata(d
);
7820 if (sscanf(buf
, "%1i", &ant
) != 1) {
7821 IWL_DEBUG_INFO("not in hex or decimal form.\n");
7825 if ((ant
>= 0) && (ant
<= 2)) {
7826 IWL_DEBUG_INFO("Setting antenna select to %d.\n", ant
);
7827 priv
->antenna
= (enum iwl3945_antenna
)ant
;
7829 IWL_DEBUG_INFO("Bad antenna select value %d.\n", ant
);
7835 static DEVICE_ATTR(antenna
, S_IWUSR
| S_IRUGO
, show_antenna
, store_antenna
);
7837 static ssize_t
show_status(struct device
*d
,
7838 struct device_attribute
*attr
, char *buf
)
7840 struct iwl3945_priv
*priv
= (struct iwl3945_priv
*)d
->driver_data
;
7841 if (!iwl3945_is_alive(priv
))
7843 return sprintf(buf
, "0x%08x\n", (int)priv
->status
);
7846 static DEVICE_ATTR(status
, S_IRUGO
, show_status
, NULL
);
7848 static ssize_t
dump_error_log(struct device
*d
,
7849 struct device_attribute
*attr
,
7850 const char *buf
, size_t count
)
7852 char *p
= (char *)buf
;
7855 iwl3945_dump_nic_error_log((struct iwl3945_priv
*)d
->driver_data
);
7857 return strnlen(buf
, count
);
7860 static DEVICE_ATTR(dump_errors
, S_IWUSR
, NULL
, dump_error_log
);
7862 static ssize_t
dump_event_log(struct device
*d
,
7863 struct device_attribute
*attr
,
7864 const char *buf
, size_t count
)
7866 char *p
= (char *)buf
;
7869 iwl3945_dump_nic_event_log((struct iwl3945_priv
*)d
->driver_data
);
7871 return strnlen(buf
, count
);
7874 static DEVICE_ATTR(dump_events
, S_IWUSR
, NULL
, dump_event_log
);
7876 /*****************************************************************************
7878 * driver setup and teardown
7880 *****************************************************************************/
7882 static void iwl3945_setup_deferred_work(struct iwl3945_priv
*priv
)
7884 priv
->workqueue
= create_workqueue(DRV_NAME
);
7886 init_waitqueue_head(&priv
->wait_command_queue
);
7888 INIT_WORK(&priv
->up
, iwl3945_bg_up
);
7889 INIT_WORK(&priv
->restart
, iwl3945_bg_restart
);
7890 INIT_WORK(&priv
->rx_replenish
, iwl3945_bg_rx_replenish
);
7891 INIT_WORK(&priv
->scan_completed
, iwl3945_bg_scan_completed
);
7892 INIT_WORK(&priv
->request_scan
, iwl3945_bg_request_scan
);
7893 INIT_WORK(&priv
->abort_scan
, iwl3945_bg_abort_scan
);
7894 INIT_WORK(&priv
->rf_kill
, iwl3945_bg_rf_kill
);
7895 INIT_WORK(&priv
->beacon_update
, iwl3945_bg_beacon_update
);
7896 INIT_WORK(&priv
->set_monitor
, iwl3945_bg_set_monitor
);
7897 INIT_DELAYED_WORK(&priv
->post_associate
, iwl3945_bg_post_associate
);
7898 INIT_DELAYED_WORK(&priv
->init_alive_start
, iwl3945_bg_init_alive_start
);
7899 INIT_DELAYED_WORK(&priv
->alive_start
, iwl3945_bg_alive_start
);
7900 INIT_DELAYED_WORK(&priv
->scan_check
, iwl3945_bg_scan_check
);
7902 iwl3945_hw_setup_deferred_work(priv
);
7904 tasklet_init(&priv
->irq_tasklet
, (void (*)(unsigned long))
7905 iwl3945_irq_tasklet
, (unsigned long)priv
);
7908 static void iwl3945_cancel_deferred_work(struct iwl3945_priv
*priv
)
7910 iwl3945_hw_cancel_deferred_work(priv
);
7912 cancel_delayed_work_sync(&priv
->init_alive_start
);
7913 cancel_delayed_work(&priv
->scan_check
);
7914 cancel_delayed_work(&priv
->alive_start
);
7915 cancel_delayed_work(&priv
->post_associate
);
7916 cancel_work_sync(&priv
->beacon_update
);
7919 static struct attribute
*iwl3945_sysfs_entries
[] = {
7920 &dev_attr_antenna
.attr
,
7921 &dev_attr_channels
.attr
,
7922 &dev_attr_dump_errors
.attr
,
7923 &dev_attr_dump_events
.attr
,
7924 &dev_attr_flags
.attr
,
7925 &dev_attr_filter_flags
.attr
,
7926 #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT
7927 &dev_attr_measurement
.attr
,
7929 &dev_attr_power_level
.attr
,
7930 &dev_attr_retry_rate
.attr
,
7931 &dev_attr_rf_kill
.attr
,
7932 &dev_attr_rs_window
.attr
,
7933 &dev_attr_statistics
.attr
,
7934 &dev_attr_status
.attr
,
7935 &dev_attr_temperature
.attr
,
7936 &dev_attr_tx_power
.attr
,
7941 static struct attribute_group iwl3945_attribute_group
= {
7942 .name
= NULL
, /* put in device directory */
7943 .attrs
= iwl3945_sysfs_entries
,
7946 static struct ieee80211_ops iwl3945_hw_ops
= {
7947 .tx
= iwl3945_mac_tx
,
7948 .start
= iwl3945_mac_start
,
7949 .stop
= iwl3945_mac_stop
,
7950 .add_interface
= iwl3945_mac_add_interface
,
7951 .remove_interface
= iwl3945_mac_remove_interface
,
7952 .config
= iwl3945_mac_config
,
7953 .config_interface
= iwl3945_mac_config_interface
,
7954 .configure_filter
= iwl3945_configure_filter
,
7955 .set_key
= iwl3945_mac_set_key
,
7956 .get_stats
= iwl3945_mac_get_stats
,
7957 .get_tx_stats
= iwl3945_mac_get_tx_stats
,
7958 .conf_tx
= iwl3945_mac_conf_tx
,
7959 .get_tsf
= iwl3945_mac_get_tsf
,
7960 .reset_tsf
= iwl3945_mac_reset_tsf
,
7961 .beacon_update
= iwl3945_mac_beacon_update
,
7962 .hw_scan
= iwl3945_mac_hw_scan
7965 static int iwl3945_pci_probe(struct pci_dev
*pdev
, const struct pci_device_id
*ent
)
7968 struct iwl3945_priv
*priv
;
7969 struct ieee80211_hw
*hw
;
7970 struct iwl_3945_cfg
*cfg
= (struct iwl_3945_cfg
*)(ent
->driver_data
);
7972 unsigned long flags
;
7973 DECLARE_MAC_BUF(mac
);
7975 /* Disabling hardware scan means that mac80211 will perform scans
7976 * "the hard way", rather than using device's scan. */
7977 if (iwl3945_param_disable_hw_scan
) {
7978 IWL_DEBUG_INFO("Disabling hw_scan\n");
7979 iwl3945_hw_ops
.hw_scan
= NULL
;
7982 if ((iwl3945_param_queues_num
> IWL39_MAX_NUM_QUEUES
) ||
7983 (iwl3945_param_queues_num
< IWL_MIN_NUM_QUEUES
)) {
7984 IWL_ERROR("invalid queues_num, should be between %d and %d\n",
7985 IWL_MIN_NUM_QUEUES
, IWL39_MAX_NUM_QUEUES
);
7990 /* mac80211 allocates memory for this device instance, including
7991 * space for this driver's private structure */
7992 hw
= ieee80211_alloc_hw(sizeof(struct iwl3945_priv
), &iwl3945_hw_ops
);
7994 IWL_ERROR("Can not allocate network device\n");
7998 SET_IEEE80211_DEV(hw
, &pdev
->dev
);
8000 hw
->rate_control_algorithm
= "iwl-3945-rs";
8002 IWL_DEBUG_INFO("*** LOAD DRIVER ***\n");
8006 priv
->pci_dev
= pdev
;
8009 /* Select antenna (may be helpful if only one antenna is connected) */
8010 priv
->antenna
= (enum iwl3945_antenna
)iwl3945_param_antenna
;
8011 #ifdef CONFIG_IWL3945_DEBUG
8012 iwl3945_debug_level
= iwl3945_param_debug
;
8013 atomic_set(&priv
->restrict_refcnt
, 0);
8015 priv
->retry_rate
= 1;
8017 priv
->ibss_beacon
= NULL
;
8019 /* Tell mac80211 our characteristics */
8020 hw
->flags
= IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE
|
8021 IEEE80211_HW_SIGNAL_DBM
|
8022 IEEE80211_HW_NOISE_DBM
;
8024 /* 4 EDCA QOS priorities */
8027 spin_lock_init(&priv
->lock
);
8028 spin_lock_init(&priv
->power_data
.lock
);
8029 spin_lock_init(&priv
->sta_lock
);
8030 spin_lock_init(&priv
->hcmd_lock
);
8032 for (i
= 0; i
< IWL_IBSS_MAC_HASH_SIZE
; i
++)
8033 INIT_LIST_HEAD(&priv
->ibss_mac_hash
[i
]);
8035 INIT_LIST_HEAD(&priv
->free_frames
);
8037 mutex_init(&priv
->mutex
);
8038 if (pci_enable_device(pdev
)) {
8040 goto out_ieee80211_free_hw
;
8043 pci_set_master(pdev
);
8045 /* Clear the driver's (not device's) station table */
8046 iwl3945_clear_stations_table(priv
);
8048 priv
->data_retry_limit
= -1;
8049 priv
->ieee_channels
= NULL
;
8050 priv
->ieee_rates
= NULL
;
8051 priv
->band
= IEEE80211_BAND_2GHZ
;
8053 err
= pci_set_dma_mask(pdev
, DMA_32BIT_MASK
);
8055 err
= pci_set_consistent_dma_mask(pdev
, DMA_32BIT_MASK
);
8057 printk(KERN_WARNING DRV_NAME
": No suitable DMA available.\n");
8058 goto out_pci_disable_device
;
8061 pci_set_drvdata(pdev
, priv
);
8062 err
= pci_request_regions(pdev
, DRV_NAME
);
8064 goto out_pci_disable_device
;
8066 /* We disable the RETRY_TIMEOUT register (0x41) to keep
8067 * PCI Tx retries from interfering with C3 CPU state */
8068 pci_write_config_byte(pdev
, 0x41, 0x00);
8070 priv
->hw_base
= pci_iomap(pdev
, 0, 0);
8071 if (!priv
->hw_base
) {
8073 goto out_pci_release_regions
;
8076 IWL_DEBUG_INFO("pci_resource_len = 0x%08llx\n",
8077 (unsigned long long) pci_resource_len(pdev
, 0));
8078 IWL_DEBUG_INFO("pci_resource_base = %p\n", priv
->hw_base
);
8080 /* Initialize module parameter values here */
8082 /* Disable radio (SW RF KILL) via parameter when loading driver */
8083 if (iwl3945_param_disable
) {
8084 set_bit(STATUS_RF_KILL_SW
, &priv
->status
);
8085 IWL_DEBUG_INFO("Radio disabled.\n");
8088 priv
->iw_mode
= IEEE80211_IF_TYPE_STA
;
8090 printk(KERN_INFO DRV_NAME
8091 ": Detected Intel Wireless WiFi Link %s\n", priv
->cfg
->name
);
8093 /* Device-specific setup */
8094 if (iwl3945_hw_set_hw_setting(priv
)) {
8095 IWL_ERROR("failed to set hw settings\n");
8099 if (iwl3945_param_qos_enable
)
8100 priv
->qos_data
.qos_enable
= 1;
8102 iwl3945_reset_qos(priv
);
8104 priv
->qos_data
.qos_active
= 0;
8105 priv
->qos_data
.qos_cap
.val
= 0;
8107 iwl3945_set_rxon_channel(priv
, IEEE80211_BAND_2GHZ
, 6);
8108 iwl3945_setup_deferred_work(priv
);
8109 iwl3945_setup_rx_handlers(priv
);
8111 priv
->rates_mask
= IWL_RATES_MASK
;
8112 /* If power management is turned on, default to AC mode */
8113 priv
->power_mode
= IWL_POWER_AC
;
8114 priv
->user_txpower_limit
= IWL_DEFAULT_TX_POWER
;
8116 spin_lock_irqsave(&priv
->lock
, flags
);
8117 iwl3945_disable_interrupts(priv
);
8118 spin_unlock_irqrestore(&priv
->lock
, flags
);
8120 err
= sysfs_create_group(&pdev
->dev
.kobj
, &iwl3945_attribute_group
);
8122 IWL_ERROR("failed to create sysfs device attributes\n");
8123 goto out_release_irq
;
8127 iwl3945_set_bit(priv
, CSR_GIO_CHICKEN_BITS
,
8128 CSR_GIO_CHICKEN_BITS_REG_BIT_DIS_L0S_EXIT_TIMER
);
8130 iwl3945_set_bit(priv
, CSR_GP_CNTRL
, CSR_GP_CNTRL_REG_FLAG_INIT_DONE
);
8131 err
= iwl3945_poll_bit(priv
, CSR_GP_CNTRL
,
8132 CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY
,
8133 CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY
, 25000);
8135 IWL_DEBUG_INFO("Failed to init the card\n");
8136 goto out_remove_sysfs
;
8138 /* Read the EEPROM */
8139 err
= iwl3945_eeprom_init(priv
);
8141 IWL_ERROR("Unable to init EEPROM\n");
8142 goto out_remove_sysfs
;
8144 /* MAC Address location in EEPROM same for 3945/4965 */
8145 get_eeprom_mac(priv
, priv
->mac_addr
);
8146 IWL_DEBUG_INFO("MAC address: %s\n", print_mac(mac
, priv
->mac_addr
));
8147 SET_IEEE80211_PERM_ADDR(priv
->hw
, priv
->mac_addr
);
8149 err
= iwl3945_init_channel_map(priv
);
8151 IWL_ERROR("initializing regulatory failed: %d\n", err
);
8152 goto out_remove_sysfs
;
8155 err
= iwl3945_init_geos(priv
);
8157 IWL_ERROR("initializing geos failed: %d\n", err
);
8158 goto out_free_channel_map
;
8161 err
= ieee80211_register_hw(priv
->hw
);
8163 IWL_ERROR("Failed to register network device (error %d)\n", err
);
8167 priv
->hw
->conf
.beacon_int
= 100;
8168 priv
->mac80211_registered
= 1;
8169 pci_save_state(pdev
);
8170 pci_disable_device(pdev
);
8175 iwl3945_free_geos(priv
);
8176 out_free_channel_map
:
8177 iwl3945_free_channel_map(priv
);
8179 sysfs_remove_group(&pdev
->dev
.kobj
, &iwl3945_attribute_group
);
8182 destroy_workqueue(priv
->workqueue
);
8183 priv
->workqueue
= NULL
;
8184 iwl3945_unset_hw_setting(priv
);
8187 pci_iounmap(pdev
, priv
->hw_base
);
8188 out_pci_release_regions
:
8189 pci_release_regions(pdev
);
8190 out_pci_disable_device
:
8191 pci_disable_device(pdev
);
8192 pci_set_drvdata(pdev
, NULL
);
8193 out_ieee80211_free_hw
:
8194 ieee80211_free_hw(priv
->hw
);
8199 static void __devexit
iwl3945_pci_remove(struct pci_dev
*pdev
)
8201 struct iwl3945_priv
*priv
= pci_get_drvdata(pdev
);
8202 struct list_head
*p
, *q
;
8204 unsigned long flags
;
8209 IWL_DEBUG_INFO("*** UNLOAD DRIVER ***\n");
8211 set_bit(STATUS_EXIT_PENDING
, &priv
->status
);
8215 /* make sure we flush any pending irq or
8216 * tasklet for the driver
8218 spin_lock_irqsave(&priv
->lock
, flags
);
8219 iwl3945_disable_interrupts(priv
);
8220 spin_unlock_irqrestore(&priv
->lock
, flags
);
8222 iwl_synchronize_irq(priv
);
8224 /* Free MAC hash list for ADHOC */
8225 for (i
= 0; i
< IWL_IBSS_MAC_HASH_SIZE
; i
++) {
8226 list_for_each_safe(p
, q
, &priv
->ibss_mac_hash
[i
]) {
8228 kfree(list_entry(p
, struct iwl3945_ibss_seq
, list
));
8232 sysfs_remove_group(&pdev
->dev
.kobj
, &iwl3945_attribute_group
);
8234 iwl3945_dealloc_ucode_pci(priv
);
8237 iwl3945_rx_queue_free(priv
, &priv
->rxq
);
8238 iwl3945_hw_txq_ctx_free(priv
);
8240 iwl3945_unset_hw_setting(priv
);
8241 iwl3945_clear_stations_table(priv
);
8243 if (priv
->mac80211_registered
) {
8244 ieee80211_unregister_hw(priv
->hw
);
8247 /*netif_stop_queue(dev); */
8248 flush_workqueue(priv
->workqueue
);
8250 /* ieee80211_unregister_hw calls iwl3945_mac_stop, which flushes
8251 * priv->workqueue... so we can't take down the workqueue
8253 destroy_workqueue(priv
->workqueue
);
8254 priv
->workqueue
= NULL
;
8256 pci_iounmap(pdev
, priv
->hw_base
);
8257 pci_release_regions(pdev
);
8258 pci_disable_device(pdev
);
8259 pci_set_drvdata(pdev
, NULL
);
8261 iwl3945_free_channel_map(priv
);
8262 iwl3945_free_geos(priv
);
8264 if (priv
->ibss_beacon
)
8265 dev_kfree_skb(priv
->ibss_beacon
);
8267 ieee80211_free_hw(priv
->hw
);
8272 static int iwl3945_pci_suspend(struct pci_dev
*pdev
, pm_message_t state
)
8274 struct iwl3945_priv
*priv
= pci_get_drvdata(pdev
);
8276 if (priv
->is_open
) {
8277 set_bit(STATUS_IN_SUSPEND
, &priv
->status
);
8278 iwl3945_mac_stop(priv
->hw
);
8282 pci_set_power_state(pdev
, PCI_D3hot
);
8287 static int iwl3945_pci_resume(struct pci_dev
*pdev
)
8289 struct iwl3945_priv
*priv
= pci_get_drvdata(pdev
);
8291 pci_set_power_state(pdev
, PCI_D0
);
8294 iwl3945_mac_start(priv
->hw
);
8296 clear_bit(STATUS_IN_SUSPEND
, &priv
->status
);
8300 #endif /* CONFIG_PM */
8302 /*****************************************************************************
8304 * driver and module entry point
8306 *****************************************************************************/
8308 static struct pci_driver iwl3945_driver
= {
8310 .id_table
= iwl3945_hw_card_ids
,
8311 .probe
= iwl3945_pci_probe
,
8312 .remove
= __devexit_p(iwl3945_pci_remove
),
8314 .suspend
= iwl3945_pci_suspend
,
8315 .resume
= iwl3945_pci_resume
,
8319 static int __init
iwl3945_init(void)
8323 printk(KERN_INFO DRV_NAME
": " DRV_DESCRIPTION
", " DRV_VERSION
"\n");
8324 printk(KERN_INFO DRV_NAME
": " DRV_COPYRIGHT
"\n");
8326 ret
= iwl3945_rate_control_register();
8328 IWL_ERROR("Unable to register rate control algorithm: %d\n", ret
);
8332 ret
= pci_register_driver(&iwl3945_driver
);
8334 IWL_ERROR("Unable to initialize PCI module\n");
8335 goto error_register
;
8337 #ifdef CONFIG_IWL3945_DEBUG
8338 ret
= driver_create_file(&iwl3945_driver
.driver
, &driver_attr_debug_level
);
8340 IWL_ERROR("Unable to create driver sysfs file\n");
8347 #ifdef CONFIG_IWL3945_DEBUG
8349 pci_unregister_driver(&iwl3945_driver
);
8352 iwl3945_rate_control_unregister();
8356 static void __exit
iwl3945_exit(void)
8358 #ifdef CONFIG_IWL3945_DEBUG
8359 driver_remove_file(&iwl3945_driver
.driver
, &driver_attr_debug_level
);
8361 pci_unregister_driver(&iwl3945_driver
);
8362 iwl3945_rate_control_unregister();
8365 module_param_named(antenna
, iwl3945_param_antenna
, int, 0444);
8366 MODULE_PARM_DESC(antenna
, "select antenna (1=Main, 2=Aux, default 0 [both])");
8367 module_param_named(disable
, iwl3945_param_disable
, int, 0444);
8368 MODULE_PARM_DESC(disable
, "manually disable the radio (default 0 [radio on])");
8369 module_param_named(hwcrypto
, iwl3945_param_hwcrypto
, int, 0444);
8370 MODULE_PARM_DESC(hwcrypto
,
8371 "using hardware crypto engine (default 0 [software])\n");
8372 module_param_named(debug
, iwl3945_param_debug
, int, 0444);
8373 MODULE_PARM_DESC(debug
, "debug output mask");
8374 module_param_named(disable_hw_scan
, iwl3945_param_disable_hw_scan
, int, 0444);
8375 MODULE_PARM_DESC(disable_hw_scan
, "disable hardware scanning (default 0)");
8377 module_param_named(queues_num
, iwl3945_param_queues_num
, int, 0444);
8378 MODULE_PARM_DESC(queues_num
, "number of hw queues.");
8381 module_param_named(qos_enable
, iwl3945_param_qos_enable
, int, 0444);
8382 MODULE_PARM_DESC(qos_enable
, "enable all QoS functionality");
8384 module_exit(iwl3945_exit
);
8385 module_init(iwl3945_init
);