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_sw(struct iwl3945_priv
*priv
)
542 return test_bit(STATUS_RF_KILL_SW
, &priv
->status
);
545 static inline int iwl3945_is_rfkill_hw(struct iwl3945_priv
*priv
)
547 return test_bit(STATUS_RF_KILL_HW
, &priv
->status
);
550 static inline int iwl3945_is_rfkill(struct iwl3945_priv
*priv
)
552 return iwl3945_is_rfkill_hw(priv
) ||
553 iwl3945_is_rfkill_sw(priv
);
556 static inline int iwl3945_is_ready_rf(struct iwl3945_priv
*priv
)
559 if (iwl3945_is_rfkill(priv
))
562 return iwl3945_is_ready(priv
);
565 /*************** HOST COMMAND QUEUE FUNCTIONS *****/
567 #define IWL_CMD(x) case x : return #x
569 static const char *get_cmd_string(u8 cmd
)
572 IWL_CMD(REPLY_ALIVE
);
573 IWL_CMD(REPLY_ERROR
);
575 IWL_CMD(REPLY_RXON_ASSOC
);
576 IWL_CMD(REPLY_QOS_PARAM
);
577 IWL_CMD(REPLY_RXON_TIMING
);
578 IWL_CMD(REPLY_ADD_STA
);
579 IWL_CMD(REPLY_REMOVE_STA
);
580 IWL_CMD(REPLY_REMOVE_ALL_STA
);
581 IWL_CMD(REPLY_3945_RX
);
583 IWL_CMD(REPLY_RATE_SCALE
);
584 IWL_CMD(REPLY_LEDS_CMD
);
585 IWL_CMD(REPLY_TX_LINK_QUALITY_CMD
);
586 IWL_CMD(RADAR_NOTIFICATION
);
587 IWL_CMD(REPLY_QUIET_CMD
);
588 IWL_CMD(REPLY_CHANNEL_SWITCH
);
589 IWL_CMD(CHANNEL_SWITCH_NOTIFICATION
);
590 IWL_CMD(REPLY_SPECTRUM_MEASUREMENT_CMD
);
591 IWL_CMD(SPECTRUM_MEASURE_NOTIFICATION
);
592 IWL_CMD(POWER_TABLE_CMD
);
593 IWL_CMD(PM_SLEEP_NOTIFICATION
);
594 IWL_CMD(PM_DEBUG_STATISTIC_NOTIFIC
);
595 IWL_CMD(REPLY_SCAN_CMD
);
596 IWL_CMD(REPLY_SCAN_ABORT_CMD
);
597 IWL_CMD(SCAN_START_NOTIFICATION
);
598 IWL_CMD(SCAN_RESULTS_NOTIFICATION
);
599 IWL_CMD(SCAN_COMPLETE_NOTIFICATION
);
600 IWL_CMD(BEACON_NOTIFICATION
);
601 IWL_CMD(REPLY_TX_BEACON
);
602 IWL_CMD(WHO_IS_AWAKE_NOTIFICATION
);
603 IWL_CMD(QUIET_NOTIFICATION
);
604 IWL_CMD(REPLY_TX_PWR_TABLE_CMD
);
605 IWL_CMD(MEASURE_ABORT_NOTIFICATION
);
606 IWL_CMD(REPLY_BT_CONFIG
);
607 IWL_CMD(REPLY_STATISTICS_CMD
);
608 IWL_CMD(STATISTICS_NOTIFICATION
);
609 IWL_CMD(REPLY_CARD_STATE_CMD
);
610 IWL_CMD(CARD_STATE_NOTIFICATION
);
611 IWL_CMD(MISSED_BEACONS_NOTIFICATION
);
618 #define HOST_COMPLETE_TIMEOUT (HZ / 2)
621 * iwl3945_enqueue_hcmd - enqueue a uCode command
622 * @priv: device private data point
623 * @cmd: a point to the ucode command structure
625 * The function returns < 0 values to indicate the operation is
626 * failed. On success, it turns the index (> 0) of command in the
629 static int iwl3945_enqueue_hcmd(struct iwl3945_priv
*priv
, struct iwl3945_host_cmd
*cmd
)
631 struct iwl3945_tx_queue
*txq
= &priv
->txq
[IWL_CMD_QUEUE_NUM
];
632 struct iwl3945_queue
*q
= &txq
->q
;
633 struct iwl3945_tfd_frame
*tfd
;
635 struct iwl3945_cmd
*out_cmd
;
637 u16 fix_size
= (u16
)(cmd
->len
+ sizeof(out_cmd
->hdr
));
638 dma_addr_t phys_addr
;
644 /* If any of the command structures end up being larger than
645 * the TFD_MAX_PAYLOAD_SIZE, and it sent as a 'small' command then
646 * we will need to increase the size of the TFD entries */
647 BUG_ON((fix_size
> TFD_MAX_PAYLOAD_SIZE
) &&
648 !(cmd
->meta
.flags
& CMD_SIZE_HUGE
));
651 if (iwl3945_is_rfkill(priv
)) {
652 IWL_DEBUG_INFO("Not sending command - RF KILL");
656 if (iwl3945_queue_space(q
) < ((cmd
->meta
.flags
& CMD_ASYNC
) ? 2 : 1)) {
657 IWL_ERROR("No space for Tx\n");
661 spin_lock_irqsave(&priv
->hcmd_lock
, flags
);
663 tfd
= &txq
->bd
[q
->write_ptr
];
664 memset(tfd
, 0, sizeof(*tfd
));
666 control_flags
= (u32
*) tfd
;
668 idx
= get_cmd_index(q
, q
->write_ptr
, cmd
->meta
.flags
& CMD_SIZE_HUGE
);
669 out_cmd
= &txq
->cmd
[idx
];
671 out_cmd
->hdr
.cmd
= cmd
->id
;
672 memcpy(&out_cmd
->meta
, &cmd
->meta
, sizeof(cmd
->meta
));
673 memcpy(&out_cmd
->cmd
.payload
, cmd
->data
, cmd
->len
);
675 /* At this point, the out_cmd now has all of the incoming cmd
678 out_cmd
->hdr
.flags
= 0;
679 out_cmd
->hdr
.sequence
= cpu_to_le16(QUEUE_TO_SEQ(IWL_CMD_QUEUE_NUM
) |
680 INDEX_TO_SEQ(q
->write_ptr
));
681 if (out_cmd
->meta
.flags
& CMD_SIZE_HUGE
)
682 out_cmd
->hdr
.sequence
|= cpu_to_le16(SEQ_HUGE_FRAME
);
684 phys_addr
= txq
->dma_addr_cmd
+ sizeof(txq
->cmd
[0]) * idx
+
685 offsetof(struct iwl3945_cmd
, hdr
);
686 iwl3945_hw_txq_attach_buf_to_tfd(priv
, tfd
, phys_addr
, fix_size
);
688 pad
= U32_PAD(cmd
->len
);
689 count
= TFD_CTL_COUNT_GET(*control_flags
);
690 *control_flags
= TFD_CTL_COUNT_SET(count
) | TFD_CTL_PAD_SET(pad
);
692 IWL_DEBUG_HC("Sending command %s (#%x), seq: 0x%04X, "
693 "%d bytes at %d[%d]:%d\n",
694 get_cmd_string(out_cmd
->hdr
.cmd
),
695 out_cmd
->hdr
.cmd
, le16_to_cpu(out_cmd
->hdr
.sequence
),
696 fix_size
, q
->write_ptr
, idx
, IWL_CMD_QUEUE_NUM
);
698 txq
->need_update
= 1;
700 /* Increment and update queue's write index */
701 q
->write_ptr
= iwl_queue_inc_wrap(q
->write_ptr
, q
->n_bd
);
702 ret
= iwl3945_tx_queue_update_write_ptr(priv
, txq
);
704 spin_unlock_irqrestore(&priv
->hcmd_lock
, flags
);
705 return ret
? ret
: idx
;
708 static int iwl3945_send_cmd_async(struct iwl3945_priv
*priv
, struct iwl3945_host_cmd
*cmd
)
712 BUG_ON(!(cmd
->meta
.flags
& CMD_ASYNC
));
714 /* An asynchronous command can not expect an SKB to be set. */
715 BUG_ON(cmd
->meta
.flags
& CMD_WANT_SKB
);
717 /* An asynchronous command MUST have a callback. */
718 BUG_ON(!cmd
->meta
.u
.callback
);
720 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
723 ret
= iwl3945_enqueue_hcmd(priv
, cmd
);
725 IWL_ERROR("Error sending %s: iwl3945_enqueue_hcmd failed: %d\n",
726 get_cmd_string(cmd
->id
), ret
);
732 static int iwl3945_send_cmd_sync(struct iwl3945_priv
*priv
, struct iwl3945_host_cmd
*cmd
)
737 BUG_ON(cmd
->meta
.flags
& CMD_ASYNC
);
739 /* A synchronous command can not have a callback set. */
740 BUG_ON(cmd
->meta
.u
.callback
!= NULL
);
742 if (test_and_set_bit(STATUS_HCMD_SYNC_ACTIVE
, &priv
->status
)) {
743 IWL_ERROR("Error sending %s: Already sending a host command\n",
744 get_cmd_string(cmd
->id
));
749 set_bit(STATUS_HCMD_ACTIVE
, &priv
->status
);
751 if (cmd
->meta
.flags
& CMD_WANT_SKB
)
752 cmd
->meta
.source
= &cmd
->meta
;
754 cmd_idx
= iwl3945_enqueue_hcmd(priv
, cmd
);
757 IWL_ERROR("Error sending %s: iwl3945_enqueue_hcmd failed: %d\n",
758 get_cmd_string(cmd
->id
), ret
);
762 ret
= wait_event_interruptible_timeout(priv
->wait_command_queue
,
763 !test_bit(STATUS_HCMD_ACTIVE
, &priv
->status
),
764 HOST_COMPLETE_TIMEOUT
);
766 if (test_bit(STATUS_HCMD_ACTIVE
, &priv
->status
)) {
767 IWL_ERROR("Error sending %s: time out after %dms.\n",
768 get_cmd_string(cmd
->id
),
769 jiffies_to_msecs(HOST_COMPLETE_TIMEOUT
));
771 clear_bit(STATUS_HCMD_ACTIVE
, &priv
->status
);
777 if (test_bit(STATUS_RF_KILL_HW
, &priv
->status
)) {
778 IWL_DEBUG_INFO("Command %s aborted: RF KILL Switch\n",
779 get_cmd_string(cmd
->id
));
783 if (test_bit(STATUS_FW_ERROR
, &priv
->status
)) {
784 IWL_DEBUG_INFO("Command %s failed: FW Error\n",
785 get_cmd_string(cmd
->id
));
789 if ((cmd
->meta
.flags
& CMD_WANT_SKB
) && !cmd
->meta
.u
.skb
) {
790 IWL_ERROR("Error: Response NULL in '%s'\n",
791 get_cmd_string(cmd
->id
));
800 if (cmd
->meta
.flags
& CMD_WANT_SKB
) {
801 struct iwl3945_cmd
*qcmd
;
803 /* Cancel the CMD_WANT_SKB flag for the cmd in the
804 * TX cmd queue. Otherwise in case the cmd comes
805 * in later, it will possibly set an invalid
806 * address (cmd->meta.source). */
807 qcmd
= &priv
->txq
[IWL_CMD_QUEUE_NUM
].cmd
[cmd_idx
];
808 qcmd
->meta
.flags
&= ~CMD_WANT_SKB
;
811 if (cmd
->meta
.u
.skb
) {
812 dev_kfree_skb_any(cmd
->meta
.u
.skb
);
813 cmd
->meta
.u
.skb
= NULL
;
816 clear_bit(STATUS_HCMD_SYNC_ACTIVE
, &priv
->status
);
820 int iwl3945_send_cmd(struct iwl3945_priv
*priv
, struct iwl3945_host_cmd
*cmd
)
822 if (cmd
->meta
.flags
& CMD_ASYNC
)
823 return iwl3945_send_cmd_async(priv
, cmd
);
825 return iwl3945_send_cmd_sync(priv
, cmd
);
828 int iwl3945_send_cmd_pdu(struct iwl3945_priv
*priv
, u8 id
, u16 len
, const void *data
)
830 struct iwl3945_host_cmd cmd
= {
836 return iwl3945_send_cmd_sync(priv
, &cmd
);
839 static int __must_check
iwl3945_send_cmd_u32(struct iwl3945_priv
*priv
, u8 id
, u32 val
)
841 struct iwl3945_host_cmd cmd
= {
847 return iwl3945_send_cmd_sync(priv
, &cmd
);
850 int iwl3945_send_statistics_request(struct iwl3945_priv
*priv
)
852 return iwl3945_send_cmd_u32(priv
, REPLY_STATISTICS_CMD
, 0);
856 * iwl3945_set_rxon_channel - Set the phymode and channel values in staging RXON
857 * @band: 2.4 or 5 GHz band
858 * @channel: Any channel valid for the requested band
860 * In addition to setting the staging RXON, priv->band is also set.
862 * NOTE: Does not commit to the hardware; it sets appropriate bit fields
863 * in the staging RXON flag structure based on the band
865 static int iwl3945_set_rxon_channel(struct iwl3945_priv
*priv
,
866 enum ieee80211_band band
,
869 if (!iwl3945_get_channel_info(priv
, band
, channel
)) {
870 IWL_DEBUG_INFO("Could not set channel to %d [%d]\n",
875 if ((le16_to_cpu(priv
->staging_rxon
.channel
) == channel
) &&
876 (priv
->band
== band
))
879 priv
->staging_rxon
.channel
= cpu_to_le16(channel
);
880 if (band
== IEEE80211_BAND_5GHZ
)
881 priv
->staging_rxon
.flags
&= ~RXON_FLG_BAND_24G_MSK
;
883 priv
->staging_rxon
.flags
|= RXON_FLG_BAND_24G_MSK
;
887 IWL_DEBUG_INFO("Staging channel set to %d [%d]\n", channel
, band
);
893 * iwl3945_check_rxon_cmd - validate RXON structure is valid
895 * NOTE: This is really only useful during development and can eventually
896 * be #ifdef'd out once the driver is stable and folks aren't actively
899 static int iwl3945_check_rxon_cmd(struct iwl3945_rxon_cmd
*rxon
)
904 if (rxon
->flags
& RXON_FLG_BAND_24G_MSK
) {
905 error
|= le32_to_cpu(rxon
->flags
&
906 (RXON_FLG_TGJ_NARROW_BAND_MSK
|
907 RXON_FLG_RADAR_DETECT_MSK
));
909 IWL_WARNING("check 24G fields %d | %d\n",
912 error
|= (rxon
->flags
& RXON_FLG_SHORT_SLOT_MSK
) ?
913 0 : le32_to_cpu(RXON_FLG_SHORT_SLOT_MSK
);
915 IWL_WARNING("check 52 fields %d | %d\n",
917 error
|= le32_to_cpu(rxon
->flags
& RXON_FLG_CCK_MSK
);
919 IWL_WARNING("check 52 CCK %d | %d\n",
922 error
|= (rxon
->node_addr
[0] | rxon
->bssid_addr
[0]) & 0x1;
924 IWL_WARNING("check mac addr %d | %d\n", counter
++, error
);
926 /* make sure basic rates 6Mbps and 1Mbps are supported */
927 error
|= (((rxon
->ofdm_basic_rates
& IWL_RATE_6M_MASK
) == 0) &&
928 ((rxon
->cck_basic_rates
& IWL_RATE_1M_MASK
) == 0));
930 IWL_WARNING("check basic rate %d | %d\n", counter
++, error
);
932 error
|= (le16_to_cpu(rxon
->assoc_id
) > 2007);
934 IWL_WARNING("check assoc id %d | %d\n", counter
++, error
);
936 error
|= ((rxon
->flags
& (RXON_FLG_CCK_MSK
| RXON_FLG_SHORT_SLOT_MSK
))
937 == (RXON_FLG_CCK_MSK
| RXON_FLG_SHORT_SLOT_MSK
));
939 IWL_WARNING("check CCK and short slot %d | %d\n",
942 error
|= ((rxon
->flags
& (RXON_FLG_CCK_MSK
| RXON_FLG_AUTO_DETECT_MSK
))
943 == (RXON_FLG_CCK_MSK
| RXON_FLG_AUTO_DETECT_MSK
));
945 IWL_WARNING("check CCK & auto detect %d | %d\n",
948 error
|= ((rxon
->flags
& (RXON_FLG_AUTO_DETECT_MSK
|
949 RXON_FLG_TGG_PROTECT_MSK
)) == RXON_FLG_TGG_PROTECT_MSK
);
951 IWL_WARNING("check TGG and auto detect %d | %d\n",
954 if ((rxon
->flags
& RXON_FLG_DIS_DIV_MSK
))
955 error
|= ((rxon
->flags
& (RXON_FLG_ANT_B_MSK
|
956 RXON_FLG_ANT_A_MSK
)) == 0);
958 IWL_WARNING("check antenna %d %d\n", counter
++, error
);
961 IWL_WARNING("Tuning to channel %d\n",
962 le16_to_cpu(rxon
->channel
));
965 IWL_ERROR("Not a valid iwl3945_rxon_assoc_cmd field values\n");
972 * iwl3945_full_rxon_required - check if full RXON (vs RXON_ASSOC) cmd is needed
973 * @priv: staging_rxon is compared to active_rxon
975 * If the RXON structure is changing enough to require a new tune,
976 * or is clearing the RXON_FILTER_ASSOC_MSK, then return 1 to indicate that
977 * a new tune (full RXON command, rather than RXON_ASSOC cmd) is required.
979 static int iwl3945_full_rxon_required(struct iwl3945_priv
*priv
)
982 /* These items are only settable from the full RXON command */
983 if (!(iwl3945_is_associated(priv
)) ||
984 compare_ether_addr(priv
->staging_rxon
.bssid_addr
,
985 priv
->active_rxon
.bssid_addr
) ||
986 compare_ether_addr(priv
->staging_rxon
.node_addr
,
987 priv
->active_rxon
.node_addr
) ||
988 compare_ether_addr(priv
->staging_rxon
.wlap_bssid_addr
,
989 priv
->active_rxon
.wlap_bssid_addr
) ||
990 (priv
->staging_rxon
.dev_type
!= priv
->active_rxon
.dev_type
) ||
991 (priv
->staging_rxon
.channel
!= priv
->active_rxon
.channel
) ||
992 (priv
->staging_rxon
.air_propagation
!=
993 priv
->active_rxon
.air_propagation
) ||
994 (priv
->staging_rxon
.assoc_id
!= priv
->active_rxon
.assoc_id
))
997 /* flags, filter_flags, ofdm_basic_rates, and cck_basic_rates can
998 * be updated with the RXON_ASSOC command -- however only some
999 * flag transitions are allowed using RXON_ASSOC */
1001 /* Check if we are not switching bands */
1002 if ((priv
->staging_rxon
.flags
& RXON_FLG_BAND_24G_MSK
) !=
1003 (priv
->active_rxon
.flags
& RXON_FLG_BAND_24G_MSK
))
1006 /* Check if we are switching association toggle */
1007 if ((priv
->staging_rxon
.filter_flags
& RXON_FILTER_ASSOC_MSK
) !=
1008 (priv
->active_rxon
.filter_flags
& RXON_FILTER_ASSOC_MSK
))
1014 static int iwl3945_send_rxon_assoc(struct iwl3945_priv
*priv
)
1017 struct iwl3945_rx_packet
*res
= NULL
;
1018 struct iwl3945_rxon_assoc_cmd rxon_assoc
;
1019 struct iwl3945_host_cmd cmd
= {
1020 .id
= REPLY_RXON_ASSOC
,
1021 .len
= sizeof(rxon_assoc
),
1022 .meta
.flags
= CMD_WANT_SKB
,
1023 .data
= &rxon_assoc
,
1025 const struct iwl3945_rxon_cmd
*rxon1
= &priv
->staging_rxon
;
1026 const struct iwl3945_rxon_cmd
*rxon2
= &priv
->active_rxon
;
1028 if ((rxon1
->flags
== rxon2
->flags
) &&
1029 (rxon1
->filter_flags
== rxon2
->filter_flags
) &&
1030 (rxon1
->cck_basic_rates
== rxon2
->cck_basic_rates
) &&
1031 (rxon1
->ofdm_basic_rates
== rxon2
->ofdm_basic_rates
)) {
1032 IWL_DEBUG_INFO("Using current RXON_ASSOC. Not resending.\n");
1036 rxon_assoc
.flags
= priv
->staging_rxon
.flags
;
1037 rxon_assoc
.filter_flags
= priv
->staging_rxon
.filter_flags
;
1038 rxon_assoc
.ofdm_basic_rates
= priv
->staging_rxon
.ofdm_basic_rates
;
1039 rxon_assoc
.cck_basic_rates
= priv
->staging_rxon
.cck_basic_rates
;
1040 rxon_assoc
.reserved
= 0;
1042 rc
= iwl3945_send_cmd_sync(priv
, &cmd
);
1046 res
= (struct iwl3945_rx_packet
*)cmd
.meta
.u
.skb
->data
;
1047 if (res
->hdr
.flags
& IWL_CMD_FAILED_MSK
) {
1048 IWL_ERROR("Bad return from REPLY_RXON_ASSOC command\n");
1052 priv
->alloc_rxb_skb
--;
1053 dev_kfree_skb_any(cmd
.meta
.u
.skb
);
1059 * iwl3945_commit_rxon - commit staging_rxon to hardware
1061 * The RXON command in staging_rxon is committed to the hardware and
1062 * the active_rxon structure is updated with the new data. This
1063 * function correctly transitions out of the RXON_ASSOC_MSK state if
1064 * a HW tune is required based on the RXON structure changes.
1066 static int iwl3945_commit_rxon(struct iwl3945_priv
*priv
)
1068 /* cast away the const for active_rxon in this function */
1069 struct iwl3945_rxon_cmd
*active_rxon
= (void *)&priv
->active_rxon
;
1071 DECLARE_MAC_BUF(mac
);
1073 if (!iwl3945_is_alive(priv
))
1076 /* always get timestamp with Rx frame */
1077 priv
->staging_rxon
.flags
|= RXON_FLG_TSF2HOST_MSK
;
1079 /* select antenna */
1080 priv
->staging_rxon
.flags
&=
1081 ~(RXON_FLG_DIS_DIV_MSK
| RXON_FLG_ANT_SEL_MSK
);
1082 priv
->staging_rxon
.flags
|= iwl3945_get_antenna_flags(priv
);
1084 rc
= iwl3945_check_rxon_cmd(&priv
->staging_rxon
);
1086 IWL_ERROR("Invalid RXON configuration. Not committing.\n");
1090 /* If we don't need to send a full RXON, we can use
1091 * iwl3945_rxon_assoc_cmd which is used to reconfigure filter
1092 * and other flags for the current radio configuration. */
1093 if (!iwl3945_full_rxon_required(priv
)) {
1094 rc
= iwl3945_send_rxon_assoc(priv
);
1096 IWL_ERROR("Error setting RXON_ASSOC "
1097 "configuration (%d).\n", rc
);
1101 memcpy(active_rxon
, &priv
->staging_rxon
, sizeof(*active_rxon
));
1106 /* If we are currently associated and the new config requires
1107 * an RXON_ASSOC and the new config wants the associated mask enabled,
1108 * we must clear the associated from the active configuration
1109 * before we apply the new config */
1110 if (iwl3945_is_associated(priv
) &&
1111 (priv
->staging_rxon
.filter_flags
& RXON_FILTER_ASSOC_MSK
)) {
1112 IWL_DEBUG_INFO("Toggling associated bit on current RXON\n");
1113 active_rxon
->filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
1115 rc
= iwl3945_send_cmd_pdu(priv
, REPLY_RXON
,
1116 sizeof(struct iwl3945_rxon_cmd
),
1117 &priv
->active_rxon
);
1119 /* If the mask clearing failed then we set
1120 * active_rxon back to what it was previously */
1122 active_rxon
->filter_flags
|= RXON_FILTER_ASSOC_MSK
;
1123 IWL_ERROR("Error clearing ASSOC_MSK on current "
1124 "configuration (%d).\n", rc
);
1129 IWL_DEBUG_INFO("Sending RXON\n"
1130 "* with%s RXON_FILTER_ASSOC_MSK\n"
1133 ((priv
->staging_rxon
.filter_flags
&
1134 RXON_FILTER_ASSOC_MSK
) ? "" : "out"),
1135 le16_to_cpu(priv
->staging_rxon
.channel
),
1136 print_mac(mac
, priv
->staging_rxon
.bssid_addr
));
1138 /* Apply the new configuration */
1139 rc
= iwl3945_send_cmd_pdu(priv
, REPLY_RXON
,
1140 sizeof(struct iwl3945_rxon_cmd
), &priv
->staging_rxon
);
1142 IWL_ERROR("Error setting new configuration (%d).\n", rc
);
1146 memcpy(active_rxon
, &priv
->staging_rxon
, sizeof(*active_rxon
));
1148 iwl3945_clear_stations_table(priv
);
1150 /* If we issue a new RXON command which required a tune then we must
1151 * send a new TXPOWER command or we won't be able to Tx any frames */
1152 rc
= iwl3945_hw_reg_send_txpower(priv
);
1154 IWL_ERROR("Error setting Tx power (%d).\n", rc
);
1158 /* Add the broadcast address so we can send broadcast frames */
1159 if (iwl3945_add_station(priv
, iwl3945_broadcast_addr
, 0, 0) ==
1160 IWL_INVALID_STATION
) {
1161 IWL_ERROR("Error adding BROADCAST address for transmit.\n");
1165 /* If we have set the ASSOC_MSK and we are in BSS mode then
1166 * add the IWL_AP_ID to the station rate table */
1167 if (iwl3945_is_associated(priv
) &&
1168 (priv
->iw_mode
== IEEE80211_IF_TYPE_STA
))
1169 if (iwl3945_add_station(priv
, priv
->active_rxon
.bssid_addr
, 1, 0)
1170 == IWL_INVALID_STATION
) {
1171 IWL_ERROR("Error adding AP address for transmit.\n");
1175 /* Init the hardware's rate fallback order based on the band */
1176 rc
= iwl3945_init_hw_rate_table(priv
);
1178 IWL_ERROR("Error setting HW rate table: %02X\n", rc
);
1185 static int iwl3945_send_bt_config(struct iwl3945_priv
*priv
)
1187 struct iwl3945_bt_cmd bt_cmd
= {
1195 return iwl3945_send_cmd_pdu(priv
, REPLY_BT_CONFIG
,
1196 sizeof(struct iwl3945_bt_cmd
), &bt_cmd
);
1199 static int iwl3945_send_scan_abort(struct iwl3945_priv
*priv
)
1202 struct iwl3945_rx_packet
*res
;
1203 struct iwl3945_host_cmd cmd
= {
1204 .id
= REPLY_SCAN_ABORT_CMD
,
1205 .meta
.flags
= CMD_WANT_SKB
,
1208 /* If there isn't a scan actively going on in the hardware
1209 * then we are in between scan bands and not actually
1210 * actively scanning, so don't send the abort command */
1211 if (!test_bit(STATUS_SCAN_HW
, &priv
->status
)) {
1212 clear_bit(STATUS_SCAN_ABORTING
, &priv
->status
);
1216 rc
= iwl3945_send_cmd_sync(priv
, &cmd
);
1218 clear_bit(STATUS_SCAN_ABORTING
, &priv
->status
);
1222 res
= (struct iwl3945_rx_packet
*)cmd
.meta
.u
.skb
->data
;
1223 if (res
->u
.status
!= CAN_ABORT_STATUS
) {
1224 /* The scan abort will return 1 for success or
1225 * 2 for "failure". A failure condition can be
1226 * due to simply not being in an active scan which
1227 * can occur if we send the scan abort before we
1228 * the microcode has notified us that a scan is
1230 IWL_DEBUG_INFO("SCAN_ABORT returned %d.\n", res
->u
.status
);
1231 clear_bit(STATUS_SCAN_ABORTING
, &priv
->status
);
1232 clear_bit(STATUS_SCAN_HW
, &priv
->status
);
1235 dev_kfree_skb_any(cmd
.meta
.u
.skb
);
1240 static int iwl3945_card_state_sync_callback(struct iwl3945_priv
*priv
,
1241 struct iwl3945_cmd
*cmd
,
1242 struct sk_buff
*skb
)
1250 * Use: Sets the device's internal card state to enable, disable, or halt
1252 * When in the 'enable' state the card operates as normal.
1253 * When in the 'disable' state, the card enters into a low power mode.
1254 * When in the 'halt' state, the card is shut down and must be fully
1255 * restarted to come back on.
1257 static int iwl3945_send_card_state(struct iwl3945_priv
*priv
, u32 flags
, u8 meta_flag
)
1259 struct iwl3945_host_cmd cmd
= {
1260 .id
= REPLY_CARD_STATE_CMD
,
1263 .meta
.flags
= meta_flag
,
1266 if (meta_flag
& CMD_ASYNC
)
1267 cmd
.meta
.u
.callback
= iwl3945_card_state_sync_callback
;
1269 return iwl3945_send_cmd(priv
, &cmd
);
1272 static int iwl3945_add_sta_sync_callback(struct iwl3945_priv
*priv
,
1273 struct iwl3945_cmd
*cmd
, struct sk_buff
*skb
)
1275 struct iwl3945_rx_packet
*res
= NULL
;
1278 IWL_ERROR("Error: Response NULL in REPLY_ADD_STA.\n");
1282 res
= (struct iwl3945_rx_packet
*)skb
->data
;
1283 if (res
->hdr
.flags
& IWL_CMD_FAILED_MSK
) {
1284 IWL_ERROR("Bad return from REPLY_ADD_STA (0x%08X)\n",
1289 switch (res
->u
.add_sta
.status
) {
1290 case ADD_STA_SUCCESS_MSK
:
1296 /* We didn't cache the SKB; let the caller free it */
1300 int iwl3945_send_add_station(struct iwl3945_priv
*priv
,
1301 struct iwl3945_addsta_cmd
*sta
, u8 flags
)
1303 struct iwl3945_rx_packet
*res
= NULL
;
1305 struct iwl3945_host_cmd cmd
= {
1306 .id
= REPLY_ADD_STA
,
1307 .len
= sizeof(struct iwl3945_addsta_cmd
),
1308 .meta
.flags
= flags
,
1312 if (flags
& CMD_ASYNC
)
1313 cmd
.meta
.u
.callback
= iwl3945_add_sta_sync_callback
;
1315 cmd
.meta
.flags
|= CMD_WANT_SKB
;
1317 rc
= iwl3945_send_cmd(priv
, &cmd
);
1319 if (rc
|| (flags
& CMD_ASYNC
))
1322 res
= (struct iwl3945_rx_packet
*)cmd
.meta
.u
.skb
->data
;
1323 if (res
->hdr
.flags
& IWL_CMD_FAILED_MSK
) {
1324 IWL_ERROR("Bad return from REPLY_ADD_STA (0x%08X)\n",
1330 switch (res
->u
.add_sta
.status
) {
1331 case ADD_STA_SUCCESS_MSK
:
1332 IWL_DEBUG_INFO("REPLY_ADD_STA PASSED\n");
1336 IWL_WARNING("REPLY_ADD_STA failed\n");
1341 priv
->alloc_rxb_skb
--;
1342 dev_kfree_skb_any(cmd
.meta
.u
.skb
);
1347 static int iwl3945_update_sta_key_info(struct iwl3945_priv
*priv
,
1348 struct ieee80211_key_conf
*keyconf
,
1351 unsigned long flags
;
1352 __le16 key_flags
= 0;
1354 switch (keyconf
->alg
) {
1356 key_flags
|= STA_KEY_FLG_CCMP
;
1357 key_flags
|= cpu_to_le16(
1358 keyconf
->keyidx
<< STA_KEY_FLG_KEYID_POS
);
1359 key_flags
&= ~STA_KEY_FLG_INVALID
;
1366 spin_lock_irqsave(&priv
->sta_lock
, flags
);
1367 priv
->stations
[sta_id
].keyinfo
.alg
= keyconf
->alg
;
1368 priv
->stations
[sta_id
].keyinfo
.keylen
= keyconf
->keylen
;
1369 memcpy(priv
->stations
[sta_id
].keyinfo
.key
, keyconf
->key
,
1372 memcpy(priv
->stations
[sta_id
].sta
.key
.key
, keyconf
->key
,
1374 priv
->stations
[sta_id
].sta
.key
.key_flags
= key_flags
;
1375 priv
->stations
[sta_id
].sta
.sta
.modify_mask
= STA_MODIFY_KEY_MASK
;
1376 priv
->stations
[sta_id
].sta
.mode
= STA_CONTROL_MODIFY_MSK
;
1378 spin_unlock_irqrestore(&priv
->sta_lock
, flags
);
1380 IWL_DEBUG_INFO("hwcrypto: modify ucode station key info\n");
1381 iwl3945_send_add_station(priv
, &priv
->stations
[sta_id
].sta
, 0);
1385 static int iwl3945_clear_sta_key_info(struct iwl3945_priv
*priv
, u8 sta_id
)
1387 unsigned long flags
;
1389 spin_lock_irqsave(&priv
->sta_lock
, flags
);
1390 memset(&priv
->stations
[sta_id
].keyinfo
, 0, sizeof(struct iwl3945_hw_key
));
1391 memset(&priv
->stations
[sta_id
].sta
.key
, 0, sizeof(struct iwl3945_keyinfo
));
1392 priv
->stations
[sta_id
].sta
.key
.key_flags
= STA_KEY_FLG_NO_ENC
;
1393 priv
->stations
[sta_id
].sta
.sta
.modify_mask
= STA_MODIFY_KEY_MASK
;
1394 priv
->stations
[sta_id
].sta
.mode
= STA_CONTROL_MODIFY_MSK
;
1395 spin_unlock_irqrestore(&priv
->sta_lock
, flags
);
1397 IWL_DEBUG_INFO("hwcrypto: clear ucode station key info\n");
1398 iwl3945_send_add_station(priv
, &priv
->stations
[sta_id
].sta
, 0);
1402 static void iwl3945_clear_free_frames(struct iwl3945_priv
*priv
)
1404 struct list_head
*element
;
1406 IWL_DEBUG_INFO("%d frames on pre-allocated heap on clear.\n",
1407 priv
->frames_count
);
1409 while (!list_empty(&priv
->free_frames
)) {
1410 element
= priv
->free_frames
.next
;
1412 kfree(list_entry(element
, struct iwl3945_frame
, list
));
1413 priv
->frames_count
--;
1416 if (priv
->frames_count
) {
1417 IWL_WARNING("%d frames still in use. Did we lose one?\n",
1418 priv
->frames_count
);
1419 priv
->frames_count
= 0;
1423 static struct iwl3945_frame
*iwl3945_get_free_frame(struct iwl3945_priv
*priv
)
1425 struct iwl3945_frame
*frame
;
1426 struct list_head
*element
;
1427 if (list_empty(&priv
->free_frames
)) {
1428 frame
= kzalloc(sizeof(*frame
), GFP_KERNEL
);
1430 IWL_ERROR("Could not allocate frame!\n");
1434 priv
->frames_count
++;
1438 element
= priv
->free_frames
.next
;
1440 return list_entry(element
, struct iwl3945_frame
, list
);
1443 static void iwl3945_free_frame(struct iwl3945_priv
*priv
, struct iwl3945_frame
*frame
)
1445 memset(frame
, 0, sizeof(*frame
));
1446 list_add(&frame
->list
, &priv
->free_frames
);
1449 unsigned int iwl3945_fill_beacon_frame(struct iwl3945_priv
*priv
,
1450 struct ieee80211_hdr
*hdr
,
1451 const u8
*dest
, int left
)
1454 if (!iwl3945_is_associated(priv
) || !priv
->ibss_beacon
||
1455 ((priv
->iw_mode
!= IEEE80211_IF_TYPE_IBSS
) &&
1456 (priv
->iw_mode
!= IEEE80211_IF_TYPE_AP
)))
1459 if (priv
->ibss_beacon
->len
> left
)
1462 memcpy(hdr
, priv
->ibss_beacon
->data
, priv
->ibss_beacon
->len
);
1464 return priv
->ibss_beacon
->len
;
1467 static u8
iwl3945_rate_get_lowest_plcp(int rate_mask
)
1471 for (i
= IWL_RATE_1M_INDEX
; i
!= IWL_RATE_INVALID
;
1472 i
= iwl3945_rates
[i
].next_ieee
) {
1473 if (rate_mask
& (1 << i
))
1474 return iwl3945_rates
[i
].plcp
;
1477 return IWL_RATE_INVALID
;
1480 static int iwl3945_send_beacon_cmd(struct iwl3945_priv
*priv
)
1482 struct iwl3945_frame
*frame
;
1483 unsigned int frame_size
;
1487 frame
= iwl3945_get_free_frame(priv
);
1490 IWL_ERROR("Could not obtain free frame buffer for beacon "
1495 if (!(priv
->staging_rxon
.flags
& RXON_FLG_BAND_24G_MSK
)) {
1496 rate
= iwl3945_rate_get_lowest_plcp(priv
->active_rate_basic
&
1498 if (rate
== IWL_INVALID_RATE
)
1499 rate
= IWL_RATE_6M_PLCP
;
1501 rate
= iwl3945_rate_get_lowest_plcp(priv
->active_rate_basic
& 0xF);
1502 if (rate
== IWL_INVALID_RATE
)
1503 rate
= IWL_RATE_1M_PLCP
;
1506 frame_size
= iwl3945_hw_get_beacon_cmd(priv
, frame
, rate
);
1508 rc
= iwl3945_send_cmd_pdu(priv
, REPLY_TX_BEACON
, frame_size
,
1511 iwl3945_free_frame(priv
, frame
);
1516 /******************************************************************************
1518 * EEPROM related functions
1520 ******************************************************************************/
1522 static void get_eeprom_mac(struct iwl3945_priv
*priv
, u8
*mac
)
1524 memcpy(mac
, priv
->eeprom
.mac_address
, 6);
1528 * Clear the OWNER_MSK, to establish driver (instead of uCode running on
1529 * embedded controller) as EEPROM reader; each read is a series of pulses
1530 * to/from the EEPROM chip, not a single event, so even reads could conflict
1531 * if they weren't arbitrated by some ownership mechanism. Here, the driver
1532 * simply claims ownership, which should be safe when this function is called
1533 * (i.e. before loading uCode!).
1535 static inline int iwl3945_eeprom_acquire_semaphore(struct iwl3945_priv
*priv
)
1537 _iwl3945_clear_bit(priv
, CSR_EEPROM_GP
, CSR_EEPROM_GP_IF_OWNER_MSK
);
1542 * iwl3945_eeprom_init - read EEPROM contents
1544 * Load the EEPROM contents from adapter into priv->eeprom
1546 * NOTE: This routine uses the non-debug IO access functions.
1548 int iwl3945_eeprom_init(struct iwl3945_priv
*priv
)
1550 u16
*e
= (u16
*)&priv
->eeprom
;
1551 u32 gp
= iwl3945_read32(priv
, CSR_EEPROM_GP
);
1553 int sz
= sizeof(priv
->eeprom
);
1558 /* The EEPROM structure has several padding buffers within it
1559 * and when adding new EEPROM maps is subject to programmer errors
1560 * which may be very difficult to identify without explicitly
1561 * checking the resulting size of the eeprom map. */
1562 BUILD_BUG_ON(sizeof(priv
->eeprom
) != IWL_EEPROM_IMAGE_SIZE
);
1564 if ((gp
& CSR_EEPROM_GP_VALID_MSK
) == CSR_EEPROM_GP_BAD_SIGNATURE
) {
1565 IWL_ERROR("EEPROM not found, EEPROM_GP=0x%08x", gp
);
1569 /* Make sure driver (instead of uCode) is allowed to read EEPROM */
1570 rc
= iwl3945_eeprom_acquire_semaphore(priv
);
1572 IWL_ERROR("Failed to acquire EEPROM semaphore.\n");
1576 /* eeprom is an array of 16bit values */
1577 for (addr
= 0; addr
< sz
; addr
+= sizeof(u16
)) {
1578 _iwl3945_write32(priv
, CSR_EEPROM_REG
, addr
<< 1);
1579 _iwl3945_clear_bit(priv
, CSR_EEPROM_REG
, CSR_EEPROM_REG_BIT_CMD
);
1581 for (i
= 0; i
< IWL_EEPROM_ACCESS_TIMEOUT
;
1582 i
+= IWL_EEPROM_ACCESS_DELAY
) {
1583 r
= _iwl3945_read_direct32(priv
, CSR_EEPROM_REG
);
1584 if (r
& CSR_EEPROM_REG_READ_VALID_MSK
)
1586 udelay(IWL_EEPROM_ACCESS_DELAY
);
1589 if (!(r
& CSR_EEPROM_REG_READ_VALID_MSK
)) {
1590 IWL_ERROR("Time out reading EEPROM[%d]", addr
);
1593 e
[addr
/ 2] = le16_to_cpu((__force __le16
)(r
>> 16));
1599 static void iwl3945_unset_hw_setting(struct iwl3945_priv
*priv
)
1601 if (priv
->hw_setting
.shared_virt
)
1602 pci_free_consistent(priv
->pci_dev
,
1603 sizeof(struct iwl3945_shared
),
1604 priv
->hw_setting
.shared_virt
,
1605 priv
->hw_setting
.shared_phys
);
1609 * iwl3945_supported_rate_to_ie - fill in the supported rate in IE field
1611 * return : set the bit for each supported rate insert in ie
1613 static u16
iwl3945_supported_rate_to_ie(u8
*ie
, u16 supported_rate
,
1614 u16 basic_rate
, int *left
)
1616 u16 ret_rates
= 0, bit
;
1621 for (bit
= 1, i
= 0; i
< IWL_RATE_COUNT
; i
++, bit
<<= 1) {
1622 if (bit
& supported_rate
) {
1624 rates
[*cnt
] = iwl3945_rates
[i
].ieee
|
1625 ((bit
& basic_rate
) ? 0x80 : 0x00);
1629 (*cnt
>= IWL_SUPPORTED_RATES_IE_LEN
))
1638 * iwl3945_fill_probe_req - fill in all required fields and IE for probe request
1640 static u16
iwl3945_fill_probe_req(struct iwl3945_priv
*priv
,
1641 struct ieee80211_mgmt
*frame
,
1642 int left
, int is_direct
)
1646 u16 active_rates
, ret_rates
, cck_rates
;
1648 /* Make sure there is enough space for the probe request,
1649 * two mandatory IEs and the data */
1655 frame
->frame_control
= cpu_to_le16(IEEE80211_STYPE_PROBE_REQ
);
1656 memcpy(frame
->da
, iwl3945_broadcast_addr
, ETH_ALEN
);
1657 memcpy(frame
->sa
, priv
->mac_addr
, ETH_ALEN
);
1658 memcpy(frame
->bssid
, iwl3945_broadcast_addr
, ETH_ALEN
);
1659 frame
->seq_ctrl
= 0;
1661 /* fill in our indirect SSID IE */
1668 pos
= &(frame
->u
.probe_req
.variable
[0]);
1669 *pos
++ = WLAN_EID_SSID
;
1672 /* fill in our direct SSID IE... */
1675 left
-= 2 + priv
->essid_len
;
1678 /* ... fill it in... */
1679 *pos
++ = WLAN_EID_SSID
;
1680 *pos
++ = priv
->essid_len
;
1681 memcpy(pos
, priv
->essid
, priv
->essid_len
);
1682 pos
+= priv
->essid_len
;
1683 len
+= 2 + priv
->essid_len
;
1686 /* fill in supported rate */
1692 /* ... fill it in... */
1693 *pos
++ = WLAN_EID_SUPP_RATES
;
1696 priv
->active_rate
= priv
->rates_mask
;
1697 active_rates
= priv
->active_rate
;
1698 priv
->active_rate_basic
= priv
->rates_mask
& IWL_BASIC_RATES_MASK
;
1700 cck_rates
= IWL_CCK_RATES_MASK
& active_rates
;
1701 ret_rates
= iwl3945_supported_rate_to_ie(pos
, cck_rates
,
1702 priv
->active_rate_basic
, &left
);
1703 active_rates
&= ~ret_rates
;
1705 ret_rates
= iwl3945_supported_rate_to_ie(pos
, active_rates
,
1706 priv
->active_rate_basic
, &left
);
1707 active_rates
&= ~ret_rates
;
1711 if (active_rates
== 0)
1714 /* fill in supported extended rate */
1719 /* ... fill it in... */
1720 *pos
++ = WLAN_EID_EXT_SUPP_RATES
;
1722 iwl3945_supported_rate_to_ie(pos
, active_rates
,
1723 priv
->active_rate_basic
, &left
);
1734 static int iwl3945_send_qos_params_command(struct iwl3945_priv
*priv
,
1735 struct iwl3945_qosparam_cmd
*qos
)
1738 return iwl3945_send_cmd_pdu(priv
, REPLY_QOS_PARAM
,
1739 sizeof(struct iwl3945_qosparam_cmd
), qos
);
1742 static void iwl3945_reset_qos(struct iwl3945_priv
*priv
)
1748 unsigned long flags
;
1751 spin_lock_irqsave(&priv
->lock
, flags
);
1752 priv
->qos_data
.qos_active
= 0;
1754 if (priv
->iw_mode
== IEEE80211_IF_TYPE_IBSS
) {
1755 if (priv
->qos_data
.qos_enable
)
1756 priv
->qos_data
.qos_active
= 1;
1757 if (!(priv
->active_rate
& 0xfff0)) {
1761 } else if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) {
1762 if (priv
->qos_data
.qos_enable
)
1763 priv
->qos_data
.qos_active
= 1;
1764 } else if (!(priv
->staging_rxon
.flags
& RXON_FLG_SHORT_SLOT_MSK
)) {
1769 if (priv
->qos_data
.qos_active
)
1772 priv
->qos_data
.def_qos_parm
.ac
[0].cw_min
= cpu_to_le16(cw_min
);
1773 priv
->qos_data
.def_qos_parm
.ac
[0].cw_max
= cpu_to_le16(cw_max
);
1774 priv
->qos_data
.def_qos_parm
.ac
[0].aifsn
= aifs
;
1775 priv
->qos_data
.def_qos_parm
.ac
[0].edca_txop
= 0;
1776 priv
->qos_data
.def_qos_parm
.ac
[0].reserved1
= 0;
1778 if (priv
->qos_data
.qos_active
) {
1780 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_min
= cpu_to_le16(cw_min
);
1781 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_max
= cpu_to_le16(cw_max
);
1782 priv
->qos_data
.def_qos_parm
.ac
[i
].aifsn
= 7;
1783 priv
->qos_data
.def_qos_parm
.ac
[i
].edca_txop
= 0;
1784 priv
->qos_data
.def_qos_parm
.ac
[i
].reserved1
= 0;
1787 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_min
=
1788 cpu_to_le16((cw_min
+ 1) / 2 - 1);
1789 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_max
=
1790 cpu_to_le16(cw_max
);
1791 priv
->qos_data
.def_qos_parm
.ac
[i
].aifsn
= 2;
1793 priv
->qos_data
.def_qos_parm
.ac
[i
].edca_txop
=
1796 priv
->qos_data
.def_qos_parm
.ac
[i
].edca_txop
=
1798 priv
->qos_data
.def_qos_parm
.ac
[i
].reserved1
= 0;
1801 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_min
=
1802 cpu_to_le16((cw_min
+ 1) / 4 - 1);
1803 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_max
=
1804 cpu_to_le16((cw_max
+ 1) / 2 - 1);
1805 priv
->qos_data
.def_qos_parm
.ac
[i
].aifsn
= 2;
1806 priv
->qos_data
.def_qos_parm
.ac
[i
].reserved1
= 0;
1808 priv
->qos_data
.def_qos_parm
.ac
[i
].edca_txop
=
1811 priv
->qos_data
.def_qos_parm
.ac
[i
].edca_txop
=
1814 for (i
= 1; i
< 4; i
++) {
1815 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_min
=
1816 cpu_to_le16(cw_min
);
1817 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_max
=
1818 cpu_to_le16(cw_max
);
1819 priv
->qos_data
.def_qos_parm
.ac
[i
].aifsn
= aifs
;
1820 priv
->qos_data
.def_qos_parm
.ac
[i
].edca_txop
= 0;
1821 priv
->qos_data
.def_qos_parm
.ac
[i
].reserved1
= 0;
1824 IWL_DEBUG_QOS("set QoS to default \n");
1826 spin_unlock_irqrestore(&priv
->lock
, flags
);
1829 static void iwl3945_activate_qos(struct iwl3945_priv
*priv
, u8 force
)
1831 unsigned long flags
;
1833 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
1836 if (!priv
->qos_data
.qos_enable
)
1839 spin_lock_irqsave(&priv
->lock
, flags
);
1840 priv
->qos_data
.def_qos_parm
.qos_flags
= 0;
1842 if (priv
->qos_data
.qos_cap
.q_AP
.queue_request
&&
1843 !priv
->qos_data
.qos_cap
.q_AP
.txop_request
)
1844 priv
->qos_data
.def_qos_parm
.qos_flags
|=
1845 QOS_PARAM_FLG_TXOP_TYPE_MSK
;
1847 if (priv
->qos_data
.qos_active
)
1848 priv
->qos_data
.def_qos_parm
.qos_flags
|=
1849 QOS_PARAM_FLG_UPDATE_EDCA_MSK
;
1851 spin_unlock_irqrestore(&priv
->lock
, flags
);
1853 if (force
|| iwl3945_is_associated(priv
)) {
1854 IWL_DEBUG_QOS("send QoS cmd with Qos active %d \n",
1855 priv
->qos_data
.qos_active
);
1857 iwl3945_send_qos_params_command(priv
,
1858 &(priv
->qos_data
.def_qos_parm
));
1863 * Power management (not Tx power!) functions
1865 #define MSEC_TO_USEC 1024
1867 #define NOSLP __constant_cpu_to_le32(0)
1868 #define SLP IWL_POWER_DRIVER_ALLOW_SLEEP_MSK
1869 #define SLP_TIMEOUT(T) __constant_cpu_to_le32((T) * MSEC_TO_USEC)
1870 #define SLP_VEC(X0, X1, X2, X3, X4) {__constant_cpu_to_le32(X0), \
1871 __constant_cpu_to_le32(X1), \
1872 __constant_cpu_to_le32(X2), \
1873 __constant_cpu_to_le32(X3), \
1874 __constant_cpu_to_le32(X4)}
1877 /* default power management (not Tx power) table values */
1879 static struct iwl3945_power_vec_entry range_0
[IWL_POWER_AC
] = {
1880 {{NOSLP
, SLP_TIMEOUT(0), SLP_TIMEOUT(0), SLP_VEC(0, 0, 0, 0, 0)}, 0},
1881 {{SLP
, SLP_TIMEOUT(200), SLP_TIMEOUT(500), SLP_VEC(1, 2, 3, 4, 4)}, 0},
1882 {{SLP
, SLP_TIMEOUT(200), SLP_TIMEOUT(300), SLP_VEC(2, 4, 6, 7, 7)}, 0},
1883 {{SLP
, SLP_TIMEOUT(50), SLP_TIMEOUT(100), SLP_VEC(2, 6, 9, 9, 10)}, 0},
1884 {{SLP
, SLP_TIMEOUT(50), SLP_TIMEOUT(25), SLP_VEC(2, 7, 9, 9, 10)}, 1},
1885 {{SLP
, SLP_TIMEOUT(25), SLP_TIMEOUT(25), SLP_VEC(4, 7, 10, 10, 10)}, 1}
1889 static struct iwl3945_power_vec_entry range_1
[IWL_POWER_AC
] = {
1890 {{NOSLP
, SLP_TIMEOUT(0), SLP_TIMEOUT(0), SLP_VEC(0, 0, 0, 0, 0)}, 0},
1891 {{SLP
, SLP_TIMEOUT(200), SLP_TIMEOUT(500),
1892 SLP_VEC(1, 2, 3, 4, 0xFF)}, 0},
1893 {{SLP
, SLP_TIMEOUT(200), SLP_TIMEOUT(300),
1894 SLP_VEC(2, 4, 6, 7, 0xFF)}, 0},
1895 {{SLP
, SLP_TIMEOUT(50), SLP_TIMEOUT(100),
1896 SLP_VEC(2, 6, 9, 9, 0xFF)}, 0},
1897 {{SLP
, SLP_TIMEOUT(50), SLP_TIMEOUT(25), SLP_VEC(2, 7, 9, 9, 0xFF)}, 0},
1898 {{SLP
, SLP_TIMEOUT(25), SLP_TIMEOUT(25),
1899 SLP_VEC(4, 7, 10, 10, 0xFF)}, 0}
1902 int iwl3945_power_init_handle(struct iwl3945_priv
*priv
)
1905 struct iwl3945_power_mgr
*pow_data
;
1906 int size
= sizeof(struct iwl3945_power_vec_entry
) * IWL_POWER_AC
;
1909 IWL_DEBUG_POWER("Initialize power \n");
1911 pow_data
= &(priv
->power_data
);
1913 memset(pow_data
, 0, sizeof(*pow_data
));
1915 pow_data
->active_index
= IWL_POWER_RANGE_0
;
1916 pow_data
->dtim_val
= 0xffff;
1918 memcpy(&pow_data
->pwr_range_0
[0], &range_0
[0], size
);
1919 memcpy(&pow_data
->pwr_range_1
[0], &range_1
[0], size
);
1921 rc
= pci_read_config_word(priv
->pci_dev
, PCI_LINK_CTRL
, &pci_pm
);
1925 struct iwl3945_powertable_cmd
*cmd
;
1927 IWL_DEBUG_POWER("adjust power command flags\n");
1929 for (i
= 0; i
< IWL_POWER_AC
; i
++) {
1930 cmd
= &pow_data
->pwr_range_0
[i
].cmd
;
1933 cmd
->flags
&= ~IWL_POWER_PCI_PM_MSK
;
1935 cmd
->flags
|= IWL_POWER_PCI_PM_MSK
;
1941 static int iwl3945_update_power_cmd(struct iwl3945_priv
*priv
,
1942 struct iwl3945_powertable_cmd
*cmd
, u32 mode
)
1947 struct iwl3945_power_vec_entry
*range
;
1949 struct iwl3945_power_mgr
*pow_data
;
1951 if (mode
> IWL_POWER_INDEX_5
) {
1952 IWL_DEBUG_POWER("Error invalid power mode \n");
1955 pow_data
= &(priv
->power_data
);
1957 if (pow_data
->active_index
== IWL_POWER_RANGE_0
)
1958 range
= &pow_data
->pwr_range_0
[0];
1960 range
= &pow_data
->pwr_range_1
[1];
1962 memcpy(cmd
, &range
[mode
].cmd
, sizeof(struct iwl3945_powertable_cmd
));
1964 #ifdef IWL_MAC80211_DISABLE
1965 if (priv
->assoc_network
!= NULL
) {
1966 unsigned long flags
;
1968 period
= priv
->assoc_network
->tim
.tim_period
;
1970 #endif /*IWL_MAC80211_DISABLE */
1971 skip
= range
[mode
].no_dtim
;
1980 cmd
->flags
&= ~IWL_POWER_SLEEP_OVER_DTIM_MSK
;
1982 __le32 slp_itrvl
= cmd
->sleep_interval
[IWL_POWER_VEC_SIZE
- 1];
1983 max_sleep
= (le32_to_cpu(slp_itrvl
) / period
) * period
;
1984 cmd
->flags
|= IWL_POWER_SLEEP_OVER_DTIM_MSK
;
1987 for (i
= 0; i
< IWL_POWER_VEC_SIZE
; i
++) {
1988 if (le32_to_cpu(cmd
->sleep_interval
[i
]) > max_sleep
)
1989 cmd
->sleep_interval
[i
] = cpu_to_le32(max_sleep
);
1992 IWL_DEBUG_POWER("Flags value = 0x%08X\n", cmd
->flags
);
1993 IWL_DEBUG_POWER("Tx timeout = %u\n", le32_to_cpu(cmd
->tx_data_timeout
));
1994 IWL_DEBUG_POWER("Rx timeout = %u\n", le32_to_cpu(cmd
->rx_data_timeout
));
1995 IWL_DEBUG_POWER("Sleep interval vector = { %d , %d , %d , %d , %d }\n",
1996 le32_to_cpu(cmd
->sleep_interval
[0]),
1997 le32_to_cpu(cmd
->sleep_interval
[1]),
1998 le32_to_cpu(cmd
->sleep_interval
[2]),
1999 le32_to_cpu(cmd
->sleep_interval
[3]),
2000 le32_to_cpu(cmd
->sleep_interval
[4]));
2005 static int iwl3945_send_power_mode(struct iwl3945_priv
*priv
, u32 mode
)
2007 u32
uninitialized_var(final_mode
);
2009 struct iwl3945_powertable_cmd cmd
;
2011 /* If on battery, set to 3,
2012 * if plugged into AC power, set to CAM ("continuously aware mode"),
2013 * else user level */
2015 case IWL_POWER_BATTERY
:
2016 final_mode
= IWL_POWER_INDEX_3
;
2019 final_mode
= IWL_POWER_MODE_CAM
;
2026 iwl3945_update_power_cmd(priv
, &cmd
, final_mode
);
2028 rc
= iwl3945_send_cmd_pdu(priv
, POWER_TABLE_CMD
, sizeof(cmd
), &cmd
);
2030 if (final_mode
== IWL_POWER_MODE_CAM
)
2031 clear_bit(STATUS_POWER_PMI
, &priv
->status
);
2033 set_bit(STATUS_POWER_PMI
, &priv
->status
);
2039 * iwl3945_scan_cancel - Cancel any currently executing HW scan
2041 * NOTE: priv->mutex is not required before calling this function
2043 static int iwl3945_scan_cancel(struct iwl3945_priv
*priv
)
2045 if (!test_bit(STATUS_SCAN_HW
, &priv
->status
)) {
2046 clear_bit(STATUS_SCANNING
, &priv
->status
);
2050 if (test_bit(STATUS_SCANNING
, &priv
->status
)) {
2051 if (!test_bit(STATUS_SCAN_ABORTING
, &priv
->status
)) {
2052 IWL_DEBUG_SCAN("Queuing scan abort.\n");
2053 set_bit(STATUS_SCAN_ABORTING
, &priv
->status
);
2054 queue_work(priv
->workqueue
, &priv
->abort_scan
);
2057 IWL_DEBUG_SCAN("Scan abort already in progress.\n");
2059 return test_bit(STATUS_SCANNING
, &priv
->status
);
2066 * iwl3945_scan_cancel_timeout - Cancel any currently executing HW scan
2067 * @ms: amount of time to wait (in milliseconds) for scan to abort
2069 * NOTE: priv->mutex must be held before calling this function
2071 static int iwl3945_scan_cancel_timeout(struct iwl3945_priv
*priv
, unsigned long ms
)
2073 unsigned long now
= jiffies
;
2076 ret
= iwl3945_scan_cancel(priv
);
2078 mutex_unlock(&priv
->mutex
);
2079 while (!time_after(jiffies
, now
+ msecs_to_jiffies(ms
)) &&
2080 test_bit(STATUS_SCANNING
, &priv
->status
))
2082 mutex_lock(&priv
->mutex
);
2084 return test_bit(STATUS_SCANNING
, &priv
->status
);
2090 #define MAX_UCODE_BEACON_INTERVAL 1024
2091 #define INTEL_CONN_LISTEN_INTERVAL __constant_cpu_to_le16(0xA)
2093 static __le16
iwl3945_adjust_beacon_interval(u16 beacon_val
)
2096 u16 beacon_factor
= 0;
2099 (beacon_val
+ MAX_UCODE_BEACON_INTERVAL
)
2100 / MAX_UCODE_BEACON_INTERVAL
;
2101 new_val
= beacon_val
/ beacon_factor
;
2103 return cpu_to_le16(new_val
);
2106 static void iwl3945_setup_rxon_timing(struct iwl3945_priv
*priv
)
2108 u64 interval_tm_unit
;
2110 unsigned long flags
;
2111 struct ieee80211_conf
*conf
= NULL
;
2114 conf
= ieee80211_get_hw_conf(priv
->hw
);
2116 spin_lock_irqsave(&priv
->lock
, flags
);
2117 priv
->rxon_timing
.timestamp
.dw
[1] = cpu_to_le32(priv
->timestamp1
);
2118 priv
->rxon_timing
.timestamp
.dw
[0] = cpu_to_le32(priv
->timestamp0
);
2120 priv
->rxon_timing
.listen_interval
= INTEL_CONN_LISTEN_INTERVAL
;
2122 tsf
= priv
->timestamp1
;
2123 tsf
= ((tsf
<< 32) | priv
->timestamp0
);
2125 beacon_int
= priv
->beacon_int
;
2126 spin_unlock_irqrestore(&priv
->lock
, flags
);
2128 if (priv
->iw_mode
== IEEE80211_IF_TYPE_STA
) {
2129 if (beacon_int
== 0) {
2130 priv
->rxon_timing
.beacon_interval
= cpu_to_le16(100);
2131 priv
->rxon_timing
.beacon_init_val
= cpu_to_le32(102400);
2133 priv
->rxon_timing
.beacon_interval
=
2134 cpu_to_le16(beacon_int
);
2135 priv
->rxon_timing
.beacon_interval
=
2136 iwl3945_adjust_beacon_interval(
2137 le16_to_cpu(priv
->rxon_timing
.beacon_interval
));
2140 priv
->rxon_timing
.atim_window
= 0;
2142 priv
->rxon_timing
.beacon_interval
=
2143 iwl3945_adjust_beacon_interval(conf
->beacon_int
);
2144 /* TODO: we need to get atim_window from upper stack
2145 * for now we set to 0 */
2146 priv
->rxon_timing
.atim_window
= 0;
2150 (le16_to_cpu(priv
->rxon_timing
.beacon_interval
) * 1024);
2151 result
= do_div(tsf
, interval_tm_unit
);
2152 priv
->rxon_timing
.beacon_init_val
=
2153 cpu_to_le32((u32
) ((u64
) interval_tm_unit
- result
));
2156 ("beacon interval %d beacon timer %d beacon tim %d\n",
2157 le16_to_cpu(priv
->rxon_timing
.beacon_interval
),
2158 le32_to_cpu(priv
->rxon_timing
.beacon_init_val
),
2159 le16_to_cpu(priv
->rxon_timing
.atim_window
));
2162 static int iwl3945_scan_initiate(struct iwl3945_priv
*priv
)
2164 if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) {
2165 IWL_ERROR("APs don't scan.\n");
2169 if (!iwl3945_is_ready_rf(priv
)) {
2170 IWL_DEBUG_SCAN("Aborting scan due to not ready.\n");
2174 if (test_bit(STATUS_SCANNING
, &priv
->status
)) {
2175 IWL_DEBUG_SCAN("Scan already in progress.\n");
2179 if (test_bit(STATUS_SCAN_ABORTING
, &priv
->status
)) {
2180 IWL_DEBUG_SCAN("Scan request while abort pending. "
2185 IWL_DEBUG_INFO("Starting scan...\n");
2186 if (priv
->cfg
->sku
& IWL_SKU_G
)
2187 priv
->scan_bands
|= BIT(IEEE80211_BAND_2GHZ
);
2188 if (priv
->cfg
->sku
& IWL_SKU_A
)
2189 priv
->scan_bands
|= BIT(IEEE80211_BAND_5GHZ
);
2190 set_bit(STATUS_SCANNING
, &priv
->status
);
2191 priv
->scan_start
= jiffies
;
2192 priv
->scan_pass_start
= priv
->scan_start
;
2194 queue_work(priv
->workqueue
, &priv
->request_scan
);
2199 static int iwl3945_set_rxon_hwcrypto(struct iwl3945_priv
*priv
, int hw_decrypt
)
2201 struct iwl3945_rxon_cmd
*rxon
= &priv
->staging_rxon
;
2204 rxon
->filter_flags
&= ~RXON_FILTER_DIS_DECRYPT_MSK
;
2206 rxon
->filter_flags
|= RXON_FILTER_DIS_DECRYPT_MSK
;
2211 static void iwl3945_set_flags_for_phymode(struct iwl3945_priv
*priv
,
2212 enum ieee80211_band band
)
2214 if (band
== IEEE80211_BAND_5GHZ
) {
2215 priv
->staging_rxon
.flags
&=
2216 ~(RXON_FLG_BAND_24G_MSK
| RXON_FLG_AUTO_DETECT_MSK
2217 | RXON_FLG_CCK_MSK
);
2218 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_SLOT_MSK
;
2220 /* Copied from iwl3945_bg_post_associate() */
2221 if (priv
->assoc_capability
& WLAN_CAPABILITY_SHORT_SLOT_TIME
)
2222 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_SLOT_MSK
;
2224 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_SLOT_MSK
;
2226 if (priv
->iw_mode
== IEEE80211_IF_TYPE_IBSS
)
2227 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_SLOT_MSK
;
2229 priv
->staging_rxon
.flags
|= RXON_FLG_BAND_24G_MSK
;
2230 priv
->staging_rxon
.flags
|= RXON_FLG_AUTO_DETECT_MSK
;
2231 priv
->staging_rxon
.flags
&= ~RXON_FLG_CCK_MSK
;
2236 * initialize rxon structure with default values from eeprom
2238 static void iwl3945_connection_init_rx_config(struct iwl3945_priv
*priv
)
2240 const struct iwl3945_channel_info
*ch_info
;
2242 memset(&priv
->staging_rxon
, 0, sizeof(priv
->staging_rxon
));
2244 switch (priv
->iw_mode
) {
2245 case IEEE80211_IF_TYPE_AP
:
2246 priv
->staging_rxon
.dev_type
= RXON_DEV_TYPE_AP
;
2249 case IEEE80211_IF_TYPE_STA
:
2250 priv
->staging_rxon
.dev_type
= RXON_DEV_TYPE_ESS
;
2251 priv
->staging_rxon
.filter_flags
= RXON_FILTER_ACCEPT_GRP_MSK
;
2254 case IEEE80211_IF_TYPE_IBSS
:
2255 priv
->staging_rxon
.dev_type
= RXON_DEV_TYPE_IBSS
;
2256 priv
->staging_rxon
.flags
= RXON_FLG_SHORT_PREAMBLE_MSK
;
2257 priv
->staging_rxon
.filter_flags
= RXON_FILTER_BCON_AWARE_MSK
|
2258 RXON_FILTER_ACCEPT_GRP_MSK
;
2261 case IEEE80211_IF_TYPE_MNTR
:
2262 priv
->staging_rxon
.dev_type
= RXON_DEV_TYPE_SNIFFER
;
2263 priv
->staging_rxon
.filter_flags
= RXON_FILTER_PROMISC_MSK
|
2264 RXON_FILTER_CTL2HOST_MSK
| RXON_FILTER_ACCEPT_GRP_MSK
;
2267 IWL_ERROR("Unsupported interface type %d\n", priv
->iw_mode
);
2272 /* TODO: Figure out when short_preamble would be set and cache from
2274 if (!hw_to_local(priv
->hw
)->short_preamble
)
2275 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_PREAMBLE_MSK
;
2277 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_PREAMBLE_MSK
;
2280 ch_info
= iwl3945_get_channel_info(priv
, priv
->band
,
2281 le16_to_cpu(priv
->active_rxon
.channel
));
2284 ch_info
= &priv
->channel_info
[0];
2287 * in some case A channels are all non IBSS
2288 * in this case force B/G channel
2290 if ((priv
->iw_mode
== IEEE80211_IF_TYPE_IBSS
) &&
2291 !(is_channel_ibss(ch_info
)))
2292 ch_info
= &priv
->channel_info
[0];
2294 priv
->staging_rxon
.channel
= cpu_to_le16(ch_info
->channel
);
2295 if (is_channel_a_band(ch_info
))
2296 priv
->band
= IEEE80211_BAND_5GHZ
;
2298 priv
->band
= IEEE80211_BAND_2GHZ
;
2300 iwl3945_set_flags_for_phymode(priv
, priv
->band
);
2302 priv
->staging_rxon
.ofdm_basic_rates
=
2303 (IWL_OFDM_RATES_MASK
>> IWL_FIRST_OFDM_RATE
) & 0xFF;
2304 priv
->staging_rxon
.cck_basic_rates
=
2305 (IWL_CCK_RATES_MASK
>> IWL_FIRST_CCK_RATE
) & 0xF;
2308 static int iwl3945_set_mode(struct iwl3945_priv
*priv
, int mode
)
2310 if (mode
== IEEE80211_IF_TYPE_IBSS
) {
2311 const struct iwl3945_channel_info
*ch_info
;
2313 ch_info
= iwl3945_get_channel_info(priv
,
2315 le16_to_cpu(priv
->staging_rxon
.channel
));
2317 if (!ch_info
|| !is_channel_ibss(ch_info
)) {
2318 IWL_ERROR("channel %d not IBSS channel\n",
2319 le16_to_cpu(priv
->staging_rxon
.channel
));
2324 priv
->iw_mode
= mode
;
2326 iwl3945_connection_init_rx_config(priv
);
2327 memcpy(priv
->staging_rxon
.node_addr
, priv
->mac_addr
, ETH_ALEN
);
2329 iwl3945_clear_stations_table(priv
);
2331 /* dont commit rxon if rf-kill is on*/
2332 if (!iwl3945_is_ready_rf(priv
))
2335 cancel_delayed_work(&priv
->scan_check
);
2336 if (iwl3945_scan_cancel_timeout(priv
, 100)) {
2337 IWL_WARNING("Aborted scan still in progress after 100ms\n");
2338 IWL_DEBUG_MAC80211("leaving - scan abort failed.\n");
2342 iwl3945_commit_rxon(priv
);
2347 static void iwl3945_build_tx_cmd_hwcrypto(struct iwl3945_priv
*priv
,
2348 struct ieee80211_tx_info
*info
,
2349 struct iwl3945_cmd
*cmd
,
2350 struct sk_buff
*skb_frag
,
2353 struct iwl3945_hw_key
*keyinfo
=
2354 &priv
->stations
[info
->control
.hw_key
->hw_key_idx
].keyinfo
;
2356 switch (keyinfo
->alg
) {
2358 cmd
->cmd
.tx
.sec_ctl
= TX_CMD_SEC_CCM
;
2359 memcpy(cmd
->cmd
.tx
.key
, keyinfo
->key
, keyinfo
->keylen
);
2360 IWL_DEBUG_TX("tx_cmd with aes hwcrypto\n");
2365 cmd
->cmd
.tx
.sec_ctl
= TX_CMD_SEC_TKIP
;
2368 memcpy(cmd
->cmd
.tx
.tkip_mic
.byte
, skb_frag
->tail
- 8,
2371 memset(cmd
->cmd
.tx
.tkip_mic
.byte
, 0, 8);
2376 cmd
->cmd
.tx
.sec_ctl
= TX_CMD_SEC_WEP
|
2377 (info
->control
.hw_key
->hw_key_idx
& TX_CMD_SEC_MSK
) << TX_CMD_SEC_SHIFT
;
2379 if (keyinfo
->keylen
== 13)
2380 cmd
->cmd
.tx
.sec_ctl
|= TX_CMD_SEC_KEY128
;
2382 memcpy(&cmd
->cmd
.tx
.key
[3], keyinfo
->key
, keyinfo
->keylen
);
2384 IWL_DEBUG_TX("Configuring packet for WEP encryption "
2385 "with key %d\n", info
->control
.hw_key
->hw_key_idx
);
2389 printk(KERN_ERR
"Unknown encode alg %d\n", keyinfo
->alg
);
2395 * handle build REPLY_TX command notification.
2397 static void iwl3945_build_tx_cmd_basic(struct iwl3945_priv
*priv
,
2398 struct iwl3945_cmd
*cmd
,
2399 struct ieee80211_tx_info
*info
,
2400 struct ieee80211_hdr
*hdr
,
2401 int is_unicast
, u8 std_id
)
2403 __le16 fc
= hdr
->frame_control
;
2404 __le32 tx_flags
= cmd
->cmd
.tx
.tx_flags
;
2406 cmd
->cmd
.tx
.stop_time
.life_time
= TX_CMD_LIFE_TIME_INFINITE
;
2407 if (!(info
->flags
& IEEE80211_TX_CTL_NO_ACK
)) {
2408 tx_flags
|= TX_CMD_FLG_ACK_MSK
;
2409 if (ieee80211_is_mgmt(fc
))
2410 tx_flags
|= TX_CMD_FLG_SEQ_CTL_MSK
;
2411 if (ieee80211_is_probe_resp(fc
) &&
2412 !(le16_to_cpu(hdr
->seq_ctrl
) & 0xf))
2413 tx_flags
|= TX_CMD_FLG_TSF_MSK
;
2415 tx_flags
&= (~TX_CMD_FLG_ACK_MSK
);
2416 tx_flags
|= TX_CMD_FLG_SEQ_CTL_MSK
;
2419 cmd
->cmd
.tx
.sta_id
= std_id
;
2420 if (ieee80211_has_morefrags(fc
))
2421 tx_flags
|= TX_CMD_FLG_MORE_FRAG_MSK
;
2423 if (ieee80211_is_data_qos(fc
)) {
2424 u8
*qc
= ieee80211_get_qos_ctl(hdr
);
2425 cmd
->cmd
.tx
.tid_tspec
= qc
[0] & 0xf;
2426 tx_flags
&= ~TX_CMD_FLG_SEQ_CTL_MSK
;
2428 tx_flags
|= TX_CMD_FLG_SEQ_CTL_MSK
;
2431 if (info
->flags
& IEEE80211_TX_CTL_USE_RTS_CTS
) {
2432 tx_flags
|= TX_CMD_FLG_RTS_MSK
;
2433 tx_flags
&= ~TX_CMD_FLG_CTS_MSK
;
2434 } else if (info
->flags
& IEEE80211_TX_CTL_USE_CTS_PROTECT
) {
2435 tx_flags
&= ~TX_CMD_FLG_RTS_MSK
;
2436 tx_flags
|= TX_CMD_FLG_CTS_MSK
;
2439 if ((tx_flags
& TX_CMD_FLG_RTS_MSK
) || (tx_flags
& TX_CMD_FLG_CTS_MSK
))
2440 tx_flags
|= TX_CMD_FLG_FULL_TXOP_PROT_MSK
;
2442 tx_flags
&= ~(TX_CMD_FLG_ANT_SEL_MSK
);
2443 if (ieee80211_is_mgmt(fc
)) {
2444 if (ieee80211_is_assoc_req(fc
) || ieee80211_is_reassoc_req(fc
))
2445 cmd
->cmd
.tx
.timeout
.pm_frame_timeout
= cpu_to_le16(3);
2447 cmd
->cmd
.tx
.timeout
.pm_frame_timeout
= cpu_to_le16(2);
2449 cmd
->cmd
.tx
.timeout
.pm_frame_timeout
= 0;
2450 #ifdef CONFIG_IWL3945_LEDS
2451 priv
->rxtxpackets
+= le16_to_cpu(cmd
->cmd
.tx
.len
);
2455 cmd
->cmd
.tx
.driver_txop
= 0;
2456 cmd
->cmd
.tx
.tx_flags
= tx_flags
;
2457 cmd
->cmd
.tx
.next_frame_len
= 0;
2461 * iwl3945_get_sta_id - Find station's index within station table
2463 static int iwl3945_get_sta_id(struct iwl3945_priv
*priv
, struct ieee80211_hdr
*hdr
)
2466 u16 fc
= le16_to_cpu(hdr
->frame_control
);
2468 /* If this frame is broadcast or management, use broadcast station id */
2469 if (((fc
& IEEE80211_FCTL_FTYPE
) != IEEE80211_FTYPE_DATA
) ||
2470 is_multicast_ether_addr(hdr
->addr1
))
2471 return priv
->hw_setting
.bcast_sta_id
;
2473 switch (priv
->iw_mode
) {
2475 /* If we are a client station in a BSS network, use the special
2476 * AP station entry (that's the only station we communicate with) */
2477 case IEEE80211_IF_TYPE_STA
:
2480 /* If we are an AP, then find the station, or use BCAST */
2481 case IEEE80211_IF_TYPE_AP
:
2482 sta_id
= iwl3945_hw_find_station(priv
, hdr
->addr1
);
2483 if (sta_id
!= IWL_INVALID_STATION
)
2485 return priv
->hw_setting
.bcast_sta_id
;
2487 /* If this frame is going out to an IBSS network, find the station,
2488 * or create a new station table entry */
2489 case IEEE80211_IF_TYPE_IBSS
: {
2490 DECLARE_MAC_BUF(mac
);
2492 /* Create new station table entry */
2493 sta_id
= iwl3945_hw_find_station(priv
, hdr
->addr1
);
2494 if (sta_id
!= IWL_INVALID_STATION
)
2497 sta_id
= iwl3945_add_station(priv
, hdr
->addr1
, 0, CMD_ASYNC
);
2499 if (sta_id
!= IWL_INVALID_STATION
)
2502 IWL_DEBUG_DROP("Station %s not in station map. "
2503 "Defaulting to broadcast...\n",
2504 print_mac(mac
, hdr
->addr1
));
2505 iwl3945_print_hex_dump(IWL_DL_DROP
, (u8
*) hdr
, sizeof(*hdr
));
2506 return priv
->hw_setting
.bcast_sta_id
;
2508 /* If we are in monitor mode, use BCAST. This is required for
2509 * packet injection. */
2510 case IEEE80211_IF_TYPE_MNTR
:
2511 return priv
->hw_setting
.bcast_sta_id
;
2514 IWL_WARNING("Unknown mode of operation: %d", priv
->iw_mode
);
2515 return priv
->hw_setting
.bcast_sta_id
;
2520 * start REPLY_TX command process
2522 static int iwl3945_tx_skb(struct iwl3945_priv
*priv
, struct sk_buff
*skb
)
2524 struct ieee80211_hdr
*hdr
= (struct ieee80211_hdr
*)skb
->data
;
2525 struct ieee80211_tx_info
*info
= IEEE80211_SKB_CB(skb
);
2526 struct iwl3945_tfd_frame
*tfd
;
2528 int txq_id
= skb_get_queue_mapping(skb
);
2529 struct iwl3945_tx_queue
*txq
= NULL
;
2530 struct iwl3945_queue
*q
= NULL
;
2531 dma_addr_t phys_addr
;
2532 dma_addr_t txcmd_phys
;
2533 struct iwl3945_cmd
*out_cmd
= NULL
;
2534 u16 len
, idx
, len_org
, hdr_len
;
2541 u8 wait_write_ptr
= 0;
2543 unsigned long flags
;
2546 spin_lock_irqsave(&priv
->lock
, flags
);
2547 if (iwl3945_is_rfkill(priv
)) {
2548 IWL_DEBUG_DROP("Dropping - RF KILL\n");
2552 if ((ieee80211_get_tx_rate(priv
->hw
, info
)->hw_value
& 0xFF) == IWL_INVALID_RATE
) {
2553 IWL_ERROR("ERROR: No TX rate available.\n");
2557 unicast
= !is_multicast_ether_addr(hdr
->addr1
);
2560 fc
= hdr
->frame_control
;
2562 #ifdef CONFIG_IWL3945_DEBUG
2563 if (ieee80211_is_auth(fc
))
2564 IWL_DEBUG_TX("Sending AUTH frame\n");
2565 else if (ieee80211_is_assoc_req(fc
))
2566 IWL_DEBUG_TX("Sending ASSOC frame\n");
2567 else if (ieee80211_is_reassoc_req(fc
))
2568 IWL_DEBUG_TX("Sending REASSOC frame\n");
2571 /* drop all data frame if we are not associated */
2572 if (ieee80211_is_data(fc
) &&
2573 (priv
->iw_mode
!= IEEE80211_IF_TYPE_MNTR
) && /* packet injection */
2574 (!iwl3945_is_associated(priv
) ||
2575 ((priv
->iw_mode
== IEEE80211_IF_TYPE_STA
) && !priv
->assoc_id
))) {
2576 IWL_DEBUG_DROP("Dropping - !iwl3945_is_associated\n");
2580 spin_unlock_irqrestore(&priv
->lock
, flags
);
2582 hdr_len
= ieee80211_get_hdrlen(le16_to_cpu(fc
));
2584 /* Find (or create) index into station table for destination station */
2585 sta_id
= iwl3945_get_sta_id(priv
, hdr
);
2586 if (sta_id
== IWL_INVALID_STATION
) {
2587 DECLARE_MAC_BUF(mac
);
2589 IWL_DEBUG_DROP("Dropping - INVALID STATION: %s\n",
2590 print_mac(mac
, hdr
->addr1
));
2594 IWL_DEBUG_RATE("station Id %d\n", sta_id
);
2596 if (ieee80211_is_data_qos(fc
)) {
2597 qc
= ieee80211_get_qos_ctl(hdr
);
2599 seq_number
= priv
->stations
[sta_id
].tid
[tid
].seq_number
&
2601 hdr
->seq_ctrl
= cpu_to_le16(seq_number
) |
2603 __constant_cpu_to_le16(IEEE80211_SCTL_FRAG
));
2607 /* Descriptor for chosen Tx queue */
2608 txq
= &priv
->txq
[txq_id
];
2611 spin_lock_irqsave(&priv
->lock
, flags
);
2613 /* Set up first empty TFD within this queue's circular TFD buffer */
2614 tfd
= &txq
->bd
[q
->write_ptr
];
2615 memset(tfd
, 0, sizeof(*tfd
));
2616 control_flags
= (u32
*) tfd
;
2617 idx
= get_cmd_index(q
, q
->write_ptr
, 0);
2619 /* Set up driver data for this TFD */
2620 memset(&(txq
->txb
[q
->write_ptr
]), 0, sizeof(struct iwl3945_tx_info
));
2621 txq
->txb
[q
->write_ptr
].skb
[0] = skb
;
2623 /* Init first empty entry in queue's array of Tx/cmd buffers */
2624 out_cmd
= &txq
->cmd
[idx
];
2625 memset(&out_cmd
->hdr
, 0, sizeof(out_cmd
->hdr
));
2626 memset(&out_cmd
->cmd
.tx
, 0, sizeof(out_cmd
->cmd
.tx
));
2629 * Set up the Tx-command (not MAC!) header.
2630 * Store the chosen Tx queue and TFD index within the sequence field;
2631 * after Tx, uCode's Tx response will return this value so driver can
2632 * locate the frame within the tx queue and do post-tx processing.
2634 out_cmd
->hdr
.cmd
= REPLY_TX
;
2635 out_cmd
->hdr
.sequence
= cpu_to_le16((u16
)(QUEUE_TO_SEQ(txq_id
) |
2636 INDEX_TO_SEQ(q
->write_ptr
)));
2638 /* Copy MAC header from skb into command buffer */
2639 memcpy(out_cmd
->cmd
.tx
.hdr
, hdr
, hdr_len
);
2642 * Use the first empty entry in this queue's command buffer array
2643 * to contain the Tx command and MAC header concatenated together
2644 * (payload data will be in another buffer).
2645 * Size of this varies, due to varying MAC header length.
2646 * If end is not dword aligned, we'll have 2 extra bytes at the end
2647 * of the MAC header (device reads on dword boundaries).
2648 * We'll tell device about this padding later.
2650 len
= priv
->hw_setting
.tx_cmd_len
+
2651 sizeof(struct iwl3945_cmd_header
) + hdr_len
;
2654 len
= (len
+ 3) & ~3;
2661 /* Physical address of this Tx command's header (not MAC header!),
2662 * within command buffer array. */
2663 txcmd_phys
= txq
->dma_addr_cmd
+ sizeof(struct iwl3945_cmd
) * idx
+
2664 offsetof(struct iwl3945_cmd
, hdr
);
2666 /* Add buffer containing Tx command and MAC(!) header to TFD's
2668 iwl3945_hw_txq_attach_buf_to_tfd(priv
, tfd
, txcmd_phys
, len
);
2670 if (info
->control
.hw_key
)
2671 iwl3945_build_tx_cmd_hwcrypto(priv
, info
, out_cmd
, skb
, 0);
2673 /* Set up TFD's 2nd entry to point directly to remainder of skb,
2674 * if any (802.11 null frames have no payload). */
2675 len
= skb
->len
- hdr_len
;
2677 phys_addr
= pci_map_single(priv
->pci_dev
, skb
->data
+ hdr_len
,
2678 len
, PCI_DMA_TODEVICE
);
2679 iwl3945_hw_txq_attach_buf_to_tfd(priv
, tfd
, phys_addr
, len
);
2683 /* If there is no payload, then we use only one Tx buffer */
2684 *control_flags
= TFD_CTL_COUNT_SET(1);
2686 /* Else use 2 buffers.
2687 * Tell 3945 about any padding after MAC header */
2688 *control_flags
= TFD_CTL_COUNT_SET(2) |
2689 TFD_CTL_PAD_SET(U32_PAD(len
));
2691 /* Total # bytes to be transmitted */
2692 len
= (u16
)skb
->len
;
2693 out_cmd
->cmd
.tx
.len
= cpu_to_le16(len
);
2695 /* TODO need this for burst mode later on */
2696 iwl3945_build_tx_cmd_basic(priv
, out_cmd
, info
, hdr
, unicast
, sta_id
);
2698 /* set is_hcca to 0; it probably will never be implemented */
2699 iwl3945_hw_build_tx_cmd_rate(priv
, out_cmd
, info
, hdr
, sta_id
, 0);
2701 out_cmd
->cmd
.tx
.tx_flags
&= ~TX_CMD_FLG_ANT_A_MSK
;
2702 out_cmd
->cmd
.tx
.tx_flags
&= ~TX_CMD_FLG_ANT_B_MSK
;
2704 if (!ieee80211_has_morefrags(hdr
->frame_control
)) {
2705 txq
->need_update
= 1;
2707 priv
->stations
[sta_id
].tid
[tid
].seq_number
= seq_number
;
2711 txq
->need_update
= 0;
2714 iwl3945_print_hex_dump(IWL_DL_TX
, out_cmd
->cmd
.payload
,
2715 sizeof(out_cmd
->cmd
.tx
));
2717 iwl3945_print_hex_dump(IWL_DL_TX
, (u8
*)out_cmd
->cmd
.tx
.hdr
,
2718 ieee80211_get_hdrlen(le16_to_cpu(fc
)));
2720 /* Tell device the write index *just past* this latest filled TFD */
2721 q
->write_ptr
= iwl_queue_inc_wrap(q
->write_ptr
, q
->n_bd
);
2722 rc
= iwl3945_tx_queue_update_write_ptr(priv
, txq
);
2723 spin_unlock_irqrestore(&priv
->lock
, flags
);
2728 if ((iwl3945_queue_space(q
) < q
->high_mark
)
2729 && priv
->mac80211_registered
) {
2730 if (wait_write_ptr
) {
2731 spin_lock_irqsave(&priv
->lock
, flags
);
2732 txq
->need_update
= 1;
2733 iwl3945_tx_queue_update_write_ptr(priv
, txq
);
2734 spin_unlock_irqrestore(&priv
->lock
, flags
);
2737 ieee80211_stop_queue(priv
->hw
, skb_get_queue_mapping(skb
));
2743 spin_unlock_irqrestore(&priv
->lock
, flags
);
2748 static void iwl3945_set_rate(struct iwl3945_priv
*priv
)
2750 const struct ieee80211_supported_band
*sband
= NULL
;
2751 struct ieee80211_rate
*rate
;
2754 sband
= iwl3945_get_band(priv
, priv
->band
);
2756 IWL_ERROR("Failed to set rate: unable to get hw mode\n");
2760 priv
->active_rate
= 0;
2761 priv
->active_rate_basic
= 0;
2763 IWL_DEBUG_RATE("Setting rates for %s GHz\n",
2764 sband
->band
== IEEE80211_BAND_2GHZ
? "2.4" : "5");
2766 for (i
= 0; i
< sband
->n_bitrates
; i
++) {
2767 rate
= &sband
->bitrates
[i
];
2768 if ((rate
->hw_value
< IWL_RATE_COUNT
) &&
2769 !(rate
->flags
& IEEE80211_CHAN_DISABLED
)) {
2770 IWL_DEBUG_RATE("Adding rate index %d (plcp %d)\n",
2771 rate
->hw_value
, iwl3945_rates
[rate
->hw_value
].plcp
);
2772 priv
->active_rate
|= (1 << rate
->hw_value
);
2776 IWL_DEBUG_RATE("Set active_rate = %0x, active_rate_basic = %0x\n",
2777 priv
->active_rate
, priv
->active_rate_basic
);
2780 * If a basic rate is configured, then use it (adding IWL_RATE_1M_MASK)
2781 * otherwise set it to the default of all CCK rates and 6, 12, 24 for
2784 if (priv
->active_rate_basic
& IWL_CCK_BASIC_RATES_MASK
)
2785 priv
->staging_rxon
.cck_basic_rates
=
2786 ((priv
->active_rate_basic
&
2787 IWL_CCK_RATES_MASK
) >> IWL_FIRST_CCK_RATE
) & 0xF;
2789 priv
->staging_rxon
.cck_basic_rates
=
2790 (IWL_CCK_BASIC_RATES_MASK
>> IWL_FIRST_CCK_RATE
) & 0xF;
2792 if (priv
->active_rate_basic
& IWL_OFDM_BASIC_RATES_MASK
)
2793 priv
->staging_rxon
.ofdm_basic_rates
=
2794 ((priv
->active_rate_basic
&
2795 (IWL_OFDM_BASIC_RATES_MASK
| IWL_RATE_6M_MASK
)) >>
2796 IWL_FIRST_OFDM_RATE
) & 0xFF;
2798 priv
->staging_rxon
.ofdm_basic_rates
=
2799 (IWL_OFDM_BASIC_RATES_MASK
>> IWL_FIRST_OFDM_RATE
) & 0xFF;
2802 static void iwl3945_radio_kill_sw(struct iwl3945_priv
*priv
, int disable_radio
)
2804 unsigned long flags
;
2806 if (!!disable_radio
== test_bit(STATUS_RF_KILL_SW
, &priv
->status
))
2809 IWL_DEBUG_RF_KILL("Manual SW RF KILL set to: RADIO %s\n",
2810 disable_radio
? "OFF" : "ON");
2812 if (disable_radio
) {
2813 iwl3945_scan_cancel(priv
);
2814 /* FIXME: This is a workaround for AP */
2815 if (priv
->iw_mode
!= IEEE80211_IF_TYPE_AP
) {
2816 spin_lock_irqsave(&priv
->lock
, flags
);
2817 iwl3945_write32(priv
, CSR_UCODE_DRV_GP1_SET
,
2818 CSR_UCODE_SW_BIT_RFKILL
);
2819 spin_unlock_irqrestore(&priv
->lock
, flags
);
2820 iwl3945_send_card_state(priv
, CARD_STATE_CMD_DISABLE
, 0);
2821 set_bit(STATUS_RF_KILL_SW
, &priv
->status
);
2826 spin_lock_irqsave(&priv
->lock
, flags
);
2827 iwl3945_write32(priv
, CSR_UCODE_DRV_GP1_CLR
, CSR_UCODE_SW_BIT_RFKILL
);
2829 clear_bit(STATUS_RF_KILL_SW
, &priv
->status
);
2830 spin_unlock_irqrestore(&priv
->lock
, flags
);
2835 spin_lock_irqsave(&priv
->lock
, flags
);
2836 iwl3945_read32(priv
, CSR_UCODE_DRV_GP1
);
2837 if (!iwl3945_grab_nic_access(priv
))
2838 iwl3945_release_nic_access(priv
);
2839 spin_unlock_irqrestore(&priv
->lock
, flags
);
2841 if (test_bit(STATUS_RF_KILL_HW
, &priv
->status
)) {
2842 IWL_DEBUG_RF_KILL("Can not turn radio back on - "
2843 "disabled by HW switch\n");
2848 queue_work(priv
->workqueue
, &priv
->restart
);
2852 void iwl3945_set_decrypted_flag(struct iwl3945_priv
*priv
, struct sk_buff
*skb
,
2853 u32 decrypt_res
, struct ieee80211_rx_status
*stats
)
2856 le16_to_cpu(((struct ieee80211_hdr
*)skb
->data
)->frame_control
);
2858 if (priv
->active_rxon
.filter_flags
& RXON_FILTER_DIS_DECRYPT_MSK
)
2861 if (!(fc
& IEEE80211_FCTL_PROTECTED
))
2864 IWL_DEBUG_RX("decrypt_res:0x%x\n", decrypt_res
);
2865 switch (decrypt_res
& RX_RES_STATUS_SEC_TYPE_MSK
) {
2866 case RX_RES_STATUS_SEC_TYPE_TKIP
:
2867 if ((decrypt_res
& RX_RES_STATUS_DECRYPT_TYPE_MSK
) ==
2868 RX_RES_STATUS_BAD_ICV_MIC
)
2869 stats
->flag
|= RX_FLAG_MMIC_ERROR
;
2870 case RX_RES_STATUS_SEC_TYPE_WEP
:
2871 case RX_RES_STATUS_SEC_TYPE_CCMP
:
2872 if ((decrypt_res
& RX_RES_STATUS_DECRYPT_TYPE_MSK
) ==
2873 RX_RES_STATUS_DECRYPT_OK
) {
2874 IWL_DEBUG_RX("hw decrypt successfully!!!\n");
2875 stats
->flag
|= RX_FLAG_DECRYPTED
;
2884 #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT
2886 #include "iwl-spectrum.h"
2888 #define BEACON_TIME_MASK_LOW 0x00FFFFFF
2889 #define BEACON_TIME_MASK_HIGH 0xFF000000
2890 #define TIME_UNIT 1024
2893 * extended beacon time format
2894 * time in usec will be changed into a 32-bit value in 8:24 format
2895 * the high 1 byte is the beacon counts
2896 * the lower 3 bytes is the time in usec within one beacon interval
2899 static u32
iwl3945_usecs_to_beacons(u32 usec
, u32 beacon_interval
)
2903 u32 interval
= beacon_interval
* 1024;
2905 if (!interval
|| !usec
)
2908 quot
= (usec
/ interval
) & (BEACON_TIME_MASK_HIGH
>> 24);
2909 rem
= (usec
% interval
) & BEACON_TIME_MASK_LOW
;
2911 return (quot
<< 24) + rem
;
2914 /* base is usually what we get from ucode with each received frame,
2915 * the same as HW timer counter counting down
2918 static __le32
iwl3945_add_beacon_time(u32 base
, u32 addon
, u32 beacon_interval
)
2920 u32 base_low
= base
& BEACON_TIME_MASK_LOW
;
2921 u32 addon_low
= addon
& BEACON_TIME_MASK_LOW
;
2922 u32 interval
= beacon_interval
* TIME_UNIT
;
2923 u32 res
= (base
& BEACON_TIME_MASK_HIGH
) +
2924 (addon
& BEACON_TIME_MASK_HIGH
);
2926 if (base_low
> addon_low
)
2927 res
+= base_low
- addon_low
;
2928 else if (base_low
< addon_low
) {
2929 res
+= interval
+ base_low
- addon_low
;
2934 return cpu_to_le32(res
);
2937 static int iwl3945_get_measurement(struct iwl3945_priv
*priv
,
2938 struct ieee80211_measurement_params
*params
,
2941 struct iwl3945_spectrum_cmd spectrum
;
2942 struct iwl3945_rx_packet
*res
;
2943 struct iwl3945_host_cmd cmd
= {
2944 .id
= REPLY_SPECTRUM_MEASUREMENT_CMD
,
2945 .data
= (void *)&spectrum
,
2946 .meta
.flags
= CMD_WANT_SKB
,
2948 u32 add_time
= le64_to_cpu(params
->start_time
);
2950 int spectrum_resp_status
;
2951 int duration
= le16_to_cpu(params
->duration
);
2953 if (iwl3945_is_associated(priv
))
2955 iwl3945_usecs_to_beacons(
2956 le64_to_cpu(params
->start_time
) - priv
->last_tsf
,
2957 le16_to_cpu(priv
->rxon_timing
.beacon_interval
));
2959 memset(&spectrum
, 0, sizeof(spectrum
));
2961 spectrum
.channel_count
= cpu_to_le16(1);
2963 RXON_FLG_TSF2HOST_MSK
| RXON_FLG_ANT_A_MSK
| RXON_FLG_DIS_DIV_MSK
;
2964 spectrum
.filter_flags
= MEASUREMENT_FILTER_FLAG
;
2965 cmd
.len
= sizeof(spectrum
);
2966 spectrum
.len
= cpu_to_le16(cmd
.len
- sizeof(spectrum
.len
));
2968 if (iwl3945_is_associated(priv
))
2969 spectrum
.start_time
=
2970 iwl3945_add_beacon_time(priv
->last_beacon_time
,
2972 le16_to_cpu(priv
->rxon_timing
.beacon_interval
));
2974 spectrum
.start_time
= 0;
2976 spectrum
.channels
[0].duration
= cpu_to_le32(duration
* TIME_UNIT
);
2977 spectrum
.channels
[0].channel
= params
->channel
;
2978 spectrum
.channels
[0].type
= type
;
2979 if (priv
->active_rxon
.flags
& RXON_FLG_BAND_24G_MSK
)
2980 spectrum
.flags
|= RXON_FLG_BAND_24G_MSK
|
2981 RXON_FLG_AUTO_DETECT_MSK
| RXON_FLG_TGG_PROTECT_MSK
;
2983 rc
= iwl3945_send_cmd_sync(priv
, &cmd
);
2987 res
= (struct iwl3945_rx_packet
*)cmd
.meta
.u
.skb
->data
;
2988 if (res
->hdr
.flags
& IWL_CMD_FAILED_MSK
) {
2989 IWL_ERROR("Bad return from REPLY_RX_ON_ASSOC command\n");
2993 spectrum_resp_status
= le16_to_cpu(res
->u
.spectrum
.status
);
2994 switch (spectrum_resp_status
) {
2995 case 0: /* Command will be handled */
2996 if (res
->u
.spectrum
.id
!= 0xff) {
2997 IWL_DEBUG_INFO("Replaced existing measurement: %d\n",
2998 res
->u
.spectrum
.id
);
2999 priv
->measurement_status
&= ~MEASUREMENT_READY
;
3001 priv
->measurement_status
|= MEASUREMENT_ACTIVE
;
3005 case 1: /* Command will not be handled */
3010 dev_kfree_skb_any(cmd
.meta
.u
.skb
);
3016 static void iwl3945_rx_reply_alive(struct iwl3945_priv
*priv
,
3017 struct iwl3945_rx_mem_buffer
*rxb
)
3019 struct iwl3945_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3020 struct iwl3945_alive_resp
*palive
;
3021 struct delayed_work
*pwork
;
3023 palive
= &pkt
->u
.alive_frame
;
3025 IWL_DEBUG_INFO("Alive ucode status 0x%08X revision "
3027 palive
->is_valid
, palive
->ver_type
,
3028 palive
->ver_subtype
);
3030 if (palive
->ver_subtype
== INITIALIZE_SUBTYPE
) {
3031 IWL_DEBUG_INFO("Initialization Alive received.\n");
3032 memcpy(&priv
->card_alive_init
,
3033 &pkt
->u
.alive_frame
,
3034 sizeof(struct iwl3945_init_alive_resp
));
3035 pwork
= &priv
->init_alive_start
;
3037 IWL_DEBUG_INFO("Runtime Alive received.\n");
3038 memcpy(&priv
->card_alive
, &pkt
->u
.alive_frame
,
3039 sizeof(struct iwl3945_alive_resp
));
3040 pwork
= &priv
->alive_start
;
3041 iwl3945_disable_events(priv
);
3044 /* We delay the ALIVE response by 5ms to
3045 * give the HW RF Kill time to activate... */
3046 if (palive
->is_valid
== UCODE_VALID_OK
)
3047 queue_delayed_work(priv
->workqueue
, pwork
,
3048 msecs_to_jiffies(5));
3050 IWL_WARNING("uCode did not respond OK.\n");
3053 static void iwl3945_rx_reply_add_sta(struct iwl3945_priv
*priv
,
3054 struct iwl3945_rx_mem_buffer
*rxb
)
3056 struct iwl3945_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3058 IWL_DEBUG_RX("Received REPLY_ADD_STA: 0x%02X\n", pkt
->u
.status
);
3062 static void iwl3945_rx_reply_error(struct iwl3945_priv
*priv
,
3063 struct iwl3945_rx_mem_buffer
*rxb
)
3065 struct iwl3945_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3067 IWL_ERROR("Error Reply type 0x%08X cmd %s (0x%02X) "
3068 "seq 0x%04X ser 0x%08X\n",
3069 le32_to_cpu(pkt
->u
.err_resp
.error_type
),
3070 get_cmd_string(pkt
->u
.err_resp
.cmd_id
),
3071 pkt
->u
.err_resp
.cmd_id
,
3072 le16_to_cpu(pkt
->u
.err_resp
.bad_cmd_seq_num
),
3073 le32_to_cpu(pkt
->u
.err_resp
.error_info
));
3076 #define TX_STATUS_ENTRY(x) case TX_STATUS_FAIL_ ## x: return #x
3078 static void iwl3945_rx_csa(struct iwl3945_priv
*priv
, struct iwl3945_rx_mem_buffer
*rxb
)
3080 struct iwl3945_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3081 struct iwl3945_rxon_cmd
*rxon
= (void *)&priv
->active_rxon
;
3082 struct iwl3945_csa_notification
*csa
= &(pkt
->u
.csa_notif
);
3083 IWL_DEBUG_11H("CSA notif: channel %d, status %d\n",
3084 le16_to_cpu(csa
->channel
), le32_to_cpu(csa
->status
));
3085 rxon
->channel
= csa
->channel
;
3086 priv
->staging_rxon
.channel
= csa
->channel
;
3089 static void iwl3945_rx_spectrum_measure_notif(struct iwl3945_priv
*priv
,
3090 struct iwl3945_rx_mem_buffer
*rxb
)
3092 #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT
3093 struct iwl3945_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3094 struct iwl3945_spectrum_notification
*report
= &(pkt
->u
.spectrum_notif
);
3096 if (!report
->state
) {
3097 IWL_DEBUG(IWL_DL_11H
| IWL_DL_INFO
,
3098 "Spectrum Measure Notification: Start\n");
3102 memcpy(&priv
->measure_report
, report
, sizeof(*report
));
3103 priv
->measurement_status
|= MEASUREMENT_READY
;
3107 static void iwl3945_rx_pm_sleep_notif(struct iwl3945_priv
*priv
,
3108 struct iwl3945_rx_mem_buffer
*rxb
)
3110 #ifdef CONFIG_IWL3945_DEBUG
3111 struct iwl3945_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3112 struct iwl3945_sleep_notification
*sleep
= &(pkt
->u
.sleep_notif
);
3113 IWL_DEBUG_RX("sleep mode: %d, src: %d\n",
3114 sleep
->pm_sleep_mode
, sleep
->pm_wakeup_src
);
3118 static void iwl3945_rx_pm_debug_statistics_notif(struct iwl3945_priv
*priv
,
3119 struct iwl3945_rx_mem_buffer
*rxb
)
3121 struct iwl3945_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3122 IWL_DEBUG_RADIO("Dumping %d bytes of unhandled "
3123 "notification for %s:\n",
3124 le32_to_cpu(pkt
->len
), get_cmd_string(pkt
->hdr
.cmd
));
3125 iwl3945_print_hex_dump(IWL_DL_RADIO
, pkt
->u
.raw
, le32_to_cpu(pkt
->len
));
3128 static void iwl3945_bg_beacon_update(struct work_struct
*work
)
3130 struct iwl3945_priv
*priv
=
3131 container_of(work
, struct iwl3945_priv
, beacon_update
);
3132 struct sk_buff
*beacon
;
3134 /* Pull updated AP beacon from mac80211. will fail if not in AP mode */
3135 beacon
= ieee80211_beacon_get(priv
->hw
, priv
->vif
);
3138 IWL_ERROR("update beacon failed\n");
3142 mutex_lock(&priv
->mutex
);
3143 /* new beacon skb is allocated every time; dispose previous.*/
3144 if (priv
->ibss_beacon
)
3145 dev_kfree_skb(priv
->ibss_beacon
);
3147 priv
->ibss_beacon
= beacon
;
3148 mutex_unlock(&priv
->mutex
);
3150 iwl3945_send_beacon_cmd(priv
);
3153 static void iwl3945_rx_beacon_notif(struct iwl3945_priv
*priv
,
3154 struct iwl3945_rx_mem_buffer
*rxb
)
3156 #ifdef CONFIG_IWL3945_DEBUG
3157 struct iwl3945_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3158 struct iwl3945_beacon_notif
*beacon
= &(pkt
->u
.beacon_status
);
3159 u8 rate
= beacon
->beacon_notify_hdr
.rate
;
3161 IWL_DEBUG_RX("beacon status %x retries %d iss %d "
3162 "tsf %d %d rate %d\n",
3163 le32_to_cpu(beacon
->beacon_notify_hdr
.status
) & TX_STATUS_MSK
,
3164 beacon
->beacon_notify_hdr
.failure_frame
,
3165 le32_to_cpu(beacon
->ibss_mgr_status
),
3166 le32_to_cpu(beacon
->high_tsf
),
3167 le32_to_cpu(beacon
->low_tsf
), rate
);
3170 if ((priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) &&
3171 (!test_bit(STATUS_EXIT_PENDING
, &priv
->status
)))
3172 queue_work(priv
->workqueue
, &priv
->beacon_update
);
3175 /* Service response to REPLY_SCAN_CMD (0x80) */
3176 static void iwl3945_rx_reply_scan(struct iwl3945_priv
*priv
,
3177 struct iwl3945_rx_mem_buffer
*rxb
)
3179 #ifdef CONFIG_IWL3945_DEBUG
3180 struct iwl3945_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3181 struct iwl3945_scanreq_notification
*notif
=
3182 (struct iwl3945_scanreq_notification
*)pkt
->u
.raw
;
3184 IWL_DEBUG_RX("Scan request status = 0x%x\n", notif
->status
);
3188 /* Service SCAN_START_NOTIFICATION (0x82) */
3189 static void iwl3945_rx_scan_start_notif(struct iwl3945_priv
*priv
,
3190 struct iwl3945_rx_mem_buffer
*rxb
)
3192 struct iwl3945_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3193 struct iwl3945_scanstart_notification
*notif
=
3194 (struct iwl3945_scanstart_notification
*)pkt
->u
.raw
;
3195 priv
->scan_start_tsf
= le32_to_cpu(notif
->tsf_low
);
3196 IWL_DEBUG_SCAN("Scan start: "
3198 "(TSF: 0x%08X:%08X) - %d (beacon timer %u)\n",
3200 notif
->band
? "bg" : "a",
3202 notif
->tsf_low
, notif
->status
, notif
->beacon_timer
);
3205 /* Service SCAN_RESULTS_NOTIFICATION (0x83) */
3206 static void iwl3945_rx_scan_results_notif(struct iwl3945_priv
*priv
,
3207 struct iwl3945_rx_mem_buffer
*rxb
)
3209 struct iwl3945_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3210 struct iwl3945_scanresults_notification
*notif
=
3211 (struct iwl3945_scanresults_notification
*)pkt
->u
.raw
;
3213 IWL_DEBUG_SCAN("Scan ch.res: "
3215 "(TSF: 0x%08X:%08X) - %d "
3216 "elapsed=%lu usec (%dms since last)\n",
3218 notif
->band
? "bg" : "a",
3219 le32_to_cpu(notif
->tsf_high
),
3220 le32_to_cpu(notif
->tsf_low
),
3221 le32_to_cpu(notif
->statistics
[0]),
3222 le32_to_cpu(notif
->tsf_low
) - priv
->scan_start_tsf
,
3223 jiffies_to_msecs(elapsed_jiffies
3224 (priv
->last_scan_jiffies
, jiffies
)));
3226 priv
->last_scan_jiffies
= jiffies
;
3227 priv
->next_scan_jiffies
= 0;
3230 /* Service SCAN_COMPLETE_NOTIFICATION (0x84) */
3231 static void iwl3945_rx_scan_complete_notif(struct iwl3945_priv
*priv
,
3232 struct iwl3945_rx_mem_buffer
*rxb
)
3234 struct iwl3945_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3235 struct iwl3945_scancomplete_notification
*scan_notif
= (void *)pkt
->u
.raw
;
3237 IWL_DEBUG_SCAN("Scan complete: %d channels (TSF 0x%08X:%08X) - %d\n",
3238 scan_notif
->scanned_channels
,
3239 scan_notif
->tsf_low
,
3240 scan_notif
->tsf_high
, scan_notif
->status
);
3242 /* The HW is no longer scanning */
3243 clear_bit(STATUS_SCAN_HW
, &priv
->status
);
3245 /* The scan completion notification came in, so kill that timer... */
3246 cancel_delayed_work(&priv
->scan_check
);
3248 IWL_DEBUG_INFO("Scan pass on %sGHz took %dms\n",
3249 (priv
->scan_bands
& BIT(IEEE80211_BAND_2GHZ
)) ?
3251 jiffies_to_msecs(elapsed_jiffies
3252 (priv
->scan_pass_start
, jiffies
)));
3254 /* Remove this scanned band from the list of pending
3255 * bands to scan, band G precedes A in order of scanning
3256 * as seen in iwl3945_bg_request_scan */
3257 if (priv
->scan_bands
& BIT(IEEE80211_BAND_2GHZ
))
3258 priv
->scan_bands
&= ~BIT(IEEE80211_BAND_2GHZ
);
3259 else if (priv
->scan_bands
& BIT(IEEE80211_BAND_5GHZ
))
3260 priv
->scan_bands
&= ~BIT(IEEE80211_BAND_5GHZ
);
3262 /* If a request to abort was given, or the scan did not succeed
3263 * then we reset the scan state machine and terminate,
3264 * re-queuing another scan if one has been requested */
3265 if (test_bit(STATUS_SCAN_ABORTING
, &priv
->status
)) {
3266 IWL_DEBUG_INFO("Aborted scan completed.\n");
3267 clear_bit(STATUS_SCAN_ABORTING
, &priv
->status
);
3269 /* If there are more bands on this scan pass reschedule */
3270 if (priv
->scan_bands
> 0)
3274 priv
->last_scan_jiffies
= jiffies
;
3275 priv
->next_scan_jiffies
= 0;
3276 IWL_DEBUG_INFO("Setting scan to off\n");
3278 clear_bit(STATUS_SCANNING
, &priv
->status
);
3280 IWL_DEBUG_INFO("Scan took %dms\n",
3281 jiffies_to_msecs(elapsed_jiffies(priv
->scan_start
, jiffies
)));
3283 queue_work(priv
->workqueue
, &priv
->scan_completed
);
3288 priv
->scan_pass_start
= jiffies
;
3289 queue_work(priv
->workqueue
, &priv
->request_scan
);
3292 /* Handle notification from uCode that card's power state is changing
3293 * due to software, hardware, or critical temperature RFKILL */
3294 static void iwl3945_rx_card_state_notif(struct iwl3945_priv
*priv
,
3295 struct iwl3945_rx_mem_buffer
*rxb
)
3297 struct iwl3945_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3298 u32 flags
= le32_to_cpu(pkt
->u
.card_state_notif
.flags
);
3299 unsigned long status
= priv
->status
;
3301 IWL_DEBUG_RF_KILL("Card state received: HW:%s SW:%s\n",
3302 (flags
& HW_CARD_DISABLED
) ? "Kill" : "On",
3303 (flags
& SW_CARD_DISABLED
) ? "Kill" : "On");
3305 iwl3945_write32(priv
, CSR_UCODE_DRV_GP1_SET
,
3306 CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED
);
3308 if (flags
& HW_CARD_DISABLED
)
3309 set_bit(STATUS_RF_KILL_HW
, &priv
->status
);
3311 clear_bit(STATUS_RF_KILL_HW
, &priv
->status
);
3314 if (flags
& SW_CARD_DISABLED
)
3315 set_bit(STATUS_RF_KILL_SW
, &priv
->status
);
3317 clear_bit(STATUS_RF_KILL_SW
, &priv
->status
);
3319 iwl3945_scan_cancel(priv
);
3321 if ((test_bit(STATUS_RF_KILL_HW
, &status
) !=
3322 test_bit(STATUS_RF_KILL_HW
, &priv
->status
)) ||
3323 (test_bit(STATUS_RF_KILL_SW
, &status
) !=
3324 test_bit(STATUS_RF_KILL_SW
, &priv
->status
)))
3325 queue_work(priv
->workqueue
, &priv
->rf_kill
);
3327 wake_up_interruptible(&priv
->wait_command_queue
);
3331 * iwl3945_setup_rx_handlers - Initialize Rx handler callbacks
3333 * Setup the RX handlers for each of the reply types sent from the uCode
3336 * This function chains into the hardware specific files for them to setup
3337 * any hardware specific handlers as well.
3339 static void iwl3945_setup_rx_handlers(struct iwl3945_priv
*priv
)
3341 priv
->rx_handlers
[REPLY_ALIVE
] = iwl3945_rx_reply_alive
;
3342 priv
->rx_handlers
[REPLY_ADD_STA
] = iwl3945_rx_reply_add_sta
;
3343 priv
->rx_handlers
[REPLY_ERROR
] = iwl3945_rx_reply_error
;
3344 priv
->rx_handlers
[CHANNEL_SWITCH_NOTIFICATION
] = iwl3945_rx_csa
;
3345 priv
->rx_handlers
[SPECTRUM_MEASURE_NOTIFICATION
] =
3346 iwl3945_rx_spectrum_measure_notif
;
3347 priv
->rx_handlers
[PM_SLEEP_NOTIFICATION
] = iwl3945_rx_pm_sleep_notif
;
3348 priv
->rx_handlers
[PM_DEBUG_STATISTIC_NOTIFIC
] =
3349 iwl3945_rx_pm_debug_statistics_notif
;
3350 priv
->rx_handlers
[BEACON_NOTIFICATION
] = iwl3945_rx_beacon_notif
;
3353 * The same handler is used for both the REPLY to a discrete
3354 * statistics request from the host as well as for the periodic
3355 * statistics notifications (after received beacons) from the uCode.
3357 priv
->rx_handlers
[REPLY_STATISTICS_CMD
] = iwl3945_hw_rx_statistics
;
3358 priv
->rx_handlers
[STATISTICS_NOTIFICATION
] = iwl3945_hw_rx_statistics
;
3360 priv
->rx_handlers
[REPLY_SCAN_CMD
] = iwl3945_rx_reply_scan
;
3361 priv
->rx_handlers
[SCAN_START_NOTIFICATION
] = iwl3945_rx_scan_start_notif
;
3362 priv
->rx_handlers
[SCAN_RESULTS_NOTIFICATION
] =
3363 iwl3945_rx_scan_results_notif
;
3364 priv
->rx_handlers
[SCAN_COMPLETE_NOTIFICATION
] =
3365 iwl3945_rx_scan_complete_notif
;
3366 priv
->rx_handlers
[CARD_STATE_NOTIFICATION
] = iwl3945_rx_card_state_notif
;
3368 /* Set up hardware specific Rx handlers */
3369 iwl3945_hw_rx_handler_setup(priv
);
3373 * iwl3945_cmd_queue_reclaim - Reclaim CMD queue entries
3374 * When FW advances 'R' index, all entries between old and new 'R' index
3375 * need to be reclaimed.
3377 static void iwl3945_cmd_queue_reclaim(struct iwl3945_priv
*priv
,
3378 int txq_id
, int index
)
3380 struct iwl3945_tx_queue
*txq
= &priv
->txq
[txq_id
];
3381 struct iwl3945_queue
*q
= &txq
->q
;
3384 if ((index
>= q
->n_bd
) || (iwl3945_x2_queue_used(q
, index
) == 0)) {
3385 IWL_ERROR("Read index for DMA queue txq id (%d), index %d, "
3386 "is out of range [0-%d] %d %d.\n", txq_id
,
3387 index
, q
->n_bd
, q
->write_ptr
, q
->read_ptr
);
3391 for (index
= iwl_queue_inc_wrap(index
, q
->n_bd
); q
->read_ptr
!= index
;
3392 q
->read_ptr
= iwl_queue_inc_wrap(q
->read_ptr
, q
->n_bd
)) {
3394 IWL_ERROR("HCMD skipped: index (%d) %d %d\n", index
,
3395 q
->write_ptr
, q
->read_ptr
);
3396 queue_work(priv
->workqueue
, &priv
->restart
);
3405 * iwl3945_tx_cmd_complete - Pull unused buffers off the queue and reclaim them
3406 * @rxb: Rx buffer to reclaim
3408 * If an Rx buffer has an async callback associated with it the callback
3409 * will be executed. The attached skb (if present) will only be freed
3410 * if the callback returns 1
3412 static void iwl3945_tx_cmd_complete(struct iwl3945_priv
*priv
,
3413 struct iwl3945_rx_mem_buffer
*rxb
)
3415 struct iwl3945_rx_packet
*pkt
= (struct iwl3945_rx_packet
*)rxb
->skb
->data
;
3416 u16 sequence
= le16_to_cpu(pkt
->hdr
.sequence
);
3417 int txq_id
= SEQ_TO_QUEUE(sequence
);
3418 int index
= SEQ_TO_INDEX(sequence
);
3419 int huge
= sequence
& SEQ_HUGE_FRAME
;
3421 struct iwl3945_cmd
*cmd
;
3423 BUG_ON(txq_id
!= IWL_CMD_QUEUE_NUM
);
3425 cmd_index
= get_cmd_index(&priv
->txq
[IWL_CMD_QUEUE_NUM
].q
, index
, huge
);
3426 cmd
= &priv
->txq
[IWL_CMD_QUEUE_NUM
].cmd
[cmd_index
];
3428 /* Input error checking is done when commands are added to queue. */
3429 if (cmd
->meta
.flags
& CMD_WANT_SKB
) {
3430 cmd
->meta
.source
->u
.skb
= rxb
->skb
;
3432 } else if (cmd
->meta
.u
.callback
&&
3433 !cmd
->meta
.u
.callback(priv
, cmd
, rxb
->skb
))
3436 iwl3945_cmd_queue_reclaim(priv
, txq_id
, index
);
3438 if (!(cmd
->meta
.flags
& CMD_ASYNC
)) {
3439 clear_bit(STATUS_HCMD_ACTIVE
, &priv
->status
);
3440 wake_up_interruptible(&priv
->wait_command_queue
);
3444 /************************** RX-FUNCTIONS ****************************/
3446 * Rx theory of operation
3448 * The host allocates 32 DMA target addresses and passes the host address
3449 * to the firmware at register IWL_RFDS_TABLE_LOWER + N * RFD_SIZE where N is
3453 * The host/firmware share two index registers for managing the Rx buffers.
3455 * The READ index maps to the first position that the firmware may be writing
3456 * to -- the driver can read up to (but not including) this position and get
3458 * The READ index is managed by the firmware once the card is enabled.
3460 * The WRITE index maps to the last position the driver has read from -- the
3461 * position preceding WRITE is the last slot the firmware can place a packet.
3463 * The queue is empty (no good data) if WRITE = READ - 1, and is full if
3466 * During initialization, the host sets up the READ queue position to the first
3467 * INDEX position, and WRITE to the last (READ - 1 wrapped)
3469 * When the firmware places a packet in a buffer, it will advance the READ index
3470 * and fire the RX interrupt. The driver can then query the READ index and
3471 * process as many packets as possible, moving the WRITE index forward as it
3472 * resets the Rx queue buffers with new memory.
3474 * The management in the driver is as follows:
3475 * + A list of pre-allocated SKBs is stored in iwl->rxq->rx_free. When
3476 * iwl->rxq->free_count drops to or below RX_LOW_WATERMARK, work is scheduled
3477 * to replenish the iwl->rxq->rx_free.
3478 * + In iwl3945_rx_replenish (scheduled) if 'processed' != 'read' then the
3479 * iwl->rxq is replenished and the READ INDEX is updated (updating the
3480 * 'processed' and 'read' driver indexes as well)
3481 * + A received packet is processed and handed to the kernel network stack,
3482 * detached from the iwl->rxq. The driver 'processed' index is updated.
3483 * + The Host/Firmware iwl->rxq is replenished at tasklet time from the rx_free
3484 * list. If there are no allocated buffers in iwl->rxq->rx_free, the READ
3485 * INDEX is not incremented and iwl->status(RX_STALLED) is set. If there
3486 * were enough free buffers and RX_STALLED is set it is cleared.
3491 * iwl3945_rx_queue_alloc() Allocates rx_free
3492 * iwl3945_rx_replenish() Replenishes rx_free list from rx_used, and calls
3493 * iwl3945_rx_queue_restock
3494 * iwl3945_rx_queue_restock() Moves available buffers from rx_free into Rx
3495 * queue, updates firmware pointers, and updates
3496 * the WRITE index. If insufficient rx_free buffers
3497 * are available, schedules iwl3945_rx_replenish
3499 * -- enable interrupts --
3500 * ISR - iwl3945_rx() Detach iwl3945_rx_mem_buffers from pool up to the
3501 * READ INDEX, detaching the SKB from the pool.
3502 * Moves the packet buffer from queue to rx_used.
3503 * Calls iwl3945_rx_queue_restock to refill any empty
3510 * iwl3945_rx_queue_space - Return number of free slots available in queue.
3512 static int iwl3945_rx_queue_space(const struct iwl3945_rx_queue
*q
)
3514 int s
= q
->read
- q
->write
;
3517 /* keep some buffer to not confuse full and empty queue */
3525 * iwl3945_rx_queue_update_write_ptr - Update the write pointer for the RX queue
3527 int iwl3945_rx_queue_update_write_ptr(struct iwl3945_priv
*priv
, struct iwl3945_rx_queue
*q
)
3531 unsigned long flags
;
3533 spin_lock_irqsave(&q
->lock
, flags
);
3535 if (q
->need_update
== 0)
3538 /* If power-saving is in use, make sure device is awake */
3539 if (test_bit(STATUS_POWER_PMI
, &priv
->status
)) {
3540 reg
= iwl3945_read32(priv
, CSR_UCODE_DRV_GP1
);
3542 if (reg
& CSR_UCODE_DRV_GP1_BIT_MAC_SLEEP
) {
3543 iwl3945_set_bit(priv
, CSR_GP_CNTRL
,
3544 CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ
);
3548 rc
= iwl3945_grab_nic_access(priv
);
3552 /* Device expects a multiple of 8 */
3553 iwl3945_write_direct32(priv
, FH_RSCSR_CHNL0_WPTR
,
3555 iwl3945_release_nic_access(priv
);
3557 /* Else device is assumed to be awake */
3559 /* Device expects a multiple of 8 */
3560 iwl3945_write32(priv
, FH_RSCSR_CHNL0_WPTR
, q
->write
& ~0x7);
3566 spin_unlock_irqrestore(&q
->lock
, flags
);
3571 * iwl3945_dma_addr2rbd_ptr - convert a DMA address to a uCode read buffer ptr
3573 static inline __le32
iwl3945_dma_addr2rbd_ptr(struct iwl3945_priv
*priv
,
3574 dma_addr_t dma_addr
)
3576 return cpu_to_le32((u32
)dma_addr
);
3580 * iwl3945_rx_queue_restock - refill RX queue from pre-allocated pool
3582 * If there are slots in the RX queue that need to be restocked,
3583 * and we have free pre-allocated buffers, fill the ranks as much
3584 * as we can, pulling from rx_free.
3586 * This moves the 'write' index forward to catch up with 'processed', and
3587 * also updates the memory address in the firmware to reference the new
3590 static int iwl3945_rx_queue_restock(struct iwl3945_priv
*priv
)
3592 struct iwl3945_rx_queue
*rxq
= &priv
->rxq
;
3593 struct list_head
*element
;
3594 struct iwl3945_rx_mem_buffer
*rxb
;
3595 unsigned long flags
;
3598 spin_lock_irqsave(&rxq
->lock
, flags
);
3599 write
= rxq
->write
& ~0x7;
3600 while ((iwl3945_rx_queue_space(rxq
) > 0) && (rxq
->free_count
)) {
3601 /* Get next free Rx buffer, remove from free list */
3602 element
= rxq
->rx_free
.next
;
3603 rxb
= list_entry(element
, struct iwl3945_rx_mem_buffer
, list
);
3606 /* Point to Rx buffer via next RBD in circular buffer */
3607 rxq
->bd
[rxq
->write
] = iwl3945_dma_addr2rbd_ptr(priv
, rxb
->dma_addr
);
3608 rxq
->queue
[rxq
->write
] = rxb
;
3609 rxq
->write
= (rxq
->write
+ 1) & RX_QUEUE_MASK
;
3612 spin_unlock_irqrestore(&rxq
->lock
, flags
);
3613 /* If the pre-allocated buffer pool is dropping low, schedule to
3615 if (rxq
->free_count
<= RX_LOW_WATERMARK
)
3616 queue_work(priv
->workqueue
, &priv
->rx_replenish
);
3619 /* If we've added more space for the firmware to place data, tell it.
3620 * Increment device's write pointer in multiples of 8. */
3621 if ((write
!= (rxq
->write
& ~0x7))
3622 || (abs(rxq
->write
- rxq
->read
) > 7)) {
3623 spin_lock_irqsave(&rxq
->lock
, flags
);
3624 rxq
->need_update
= 1;
3625 spin_unlock_irqrestore(&rxq
->lock
, flags
);
3626 rc
= iwl3945_rx_queue_update_write_ptr(priv
, rxq
);
3635 * iwl3945_rx_replenish - Move all used packet from rx_used to rx_free
3637 * When moving to rx_free an SKB is allocated for the slot.
3639 * Also restock the Rx queue via iwl3945_rx_queue_restock.
3640 * This is called as a scheduled work item (except for during initialization)
3642 static void iwl3945_rx_allocate(struct iwl3945_priv
*priv
)
3644 struct iwl3945_rx_queue
*rxq
= &priv
->rxq
;
3645 struct list_head
*element
;
3646 struct iwl3945_rx_mem_buffer
*rxb
;
3647 unsigned long flags
;
3648 spin_lock_irqsave(&rxq
->lock
, flags
);
3649 while (!list_empty(&rxq
->rx_used
)) {
3650 element
= rxq
->rx_used
.next
;
3651 rxb
= list_entry(element
, struct iwl3945_rx_mem_buffer
, list
);
3653 /* Alloc a new receive buffer */
3655 alloc_skb(IWL_RX_BUF_SIZE
, __GFP_NOWARN
| GFP_ATOMIC
);
3657 if (net_ratelimit())
3658 printk(KERN_CRIT DRV_NAME
3659 ": Can not allocate SKB buffers\n");
3660 /* We don't reschedule replenish work here -- we will
3661 * call the restock method and if it still needs
3662 * more buffers it will schedule replenish */
3666 /* If radiotap head is required, reserve some headroom here.
3667 * The physical head count is a variable rx_stats->phy_count.
3668 * We reserve 4 bytes here. Plus these extra bytes, the
3669 * headroom of the physical head should be enough for the
3670 * radiotap head that iwl3945 supported. See iwl3945_rt.
3672 skb_reserve(rxb
->skb
, 4);
3674 priv
->alloc_rxb_skb
++;
3677 /* Get physical address of RB/SKB */
3679 pci_map_single(priv
->pci_dev
, rxb
->skb
->data
,
3680 IWL_RX_BUF_SIZE
, PCI_DMA_FROMDEVICE
);
3681 list_add_tail(&rxb
->list
, &rxq
->rx_free
);
3684 spin_unlock_irqrestore(&rxq
->lock
, flags
);
3688 * this should be called while priv->lock is locked
3690 static void __iwl3945_rx_replenish(void *data
)
3692 struct iwl3945_priv
*priv
= data
;
3694 iwl3945_rx_allocate(priv
);
3695 iwl3945_rx_queue_restock(priv
);
3699 void iwl3945_rx_replenish(void *data
)
3701 struct iwl3945_priv
*priv
= data
;
3702 unsigned long flags
;
3704 iwl3945_rx_allocate(priv
);
3706 spin_lock_irqsave(&priv
->lock
, flags
);
3707 iwl3945_rx_queue_restock(priv
);
3708 spin_unlock_irqrestore(&priv
->lock
, flags
);
3711 /* Assumes that the skb field of the buffers in 'pool' is kept accurate.
3712 * If an SKB has been detached, the POOL needs to have its SKB set to NULL
3713 * This free routine walks the list of POOL entries and if SKB is set to
3714 * non NULL it is unmapped and freed
3716 static void iwl3945_rx_queue_free(struct iwl3945_priv
*priv
, struct iwl3945_rx_queue
*rxq
)
3719 for (i
= 0; i
< RX_QUEUE_SIZE
+ RX_FREE_BUFFERS
; i
++) {
3720 if (rxq
->pool
[i
].skb
!= NULL
) {
3721 pci_unmap_single(priv
->pci_dev
,
3722 rxq
->pool
[i
].dma_addr
,
3723 IWL_RX_BUF_SIZE
, PCI_DMA_FROMDEVICE
);
3724 dev_kfree_skb(rxq
->pool
[i
].skb
);
3728 pci_free_consistent(priv
->pci_dev
, 4 * RX_QUEUE_SIZE
, rxq
->bd
,
3733 int iwl3945_rx_queue_alloc(struct iwl3945_priv
*priv
)
3735 struct iwl3945_rx_queue
*rxq
= &priv
->rxq
;
3736 struct pci_dev
*dev
= priv
->pci_dev
;
3739 spin_lock_init(&rxq
->lock
);
3740 INIT_LIST_HEAD(&rxq
->rx_free
);
3741 INIT_LIST_HEAD(&rxq
->rx_used
);
3743 /* Alloc the circular buffer of Read Buffer Descriptors (RBDs) */
3744 rxq
->bd
= pci_alloc_consistent(dev
, 4 * RX_QUEUE_SIZE
, &rxq
->dma_addr
);
3748 /* Fill the rx_used queue with _all_ of the Rx buffers */
3749 for (i
= 0; i
< RX_FREE_BUFFERS
+ RX_QUEUE_SIZE
; i
++)
3750 list_add_tail(&rxq
->pool
[i
].list
, &rxq
->rx_used
);
3752 /* Set us so that we have processed and used all buffers, but have
3753 * not restocked the Rx queue with fresh buffers */
3754 rxq
->read
= rxq
->write
= 0;
3755 rxq
->free_count
= 0;
3756 rxq
->need_update
= 0;
3760 void iwl3945_rx_queue_reset(struct iwl3945_priv
*priv
, struct iwl3945_rx_queue
*rxq
)
3762 unsigned long flags
;
3764 spin_lock_irqsave(&rxq
->lock
, flags
);
3765 INIT_LIST_HEAD(&rxq
->rx_free
);
3766 INIT_LIST_HEAD(&rxq
->rx_used
);
3767 /* Fill the rx_used queue with _all_ of the Rx buffers */
3768 for (i
= 0; i
< RX_FREE_BUFFERS
+ RX_QUEUE_SIZE
; i
++) {
3769 /* In the reset function, these buffers may have been allocated
3770 * to an SKB, so we need to unmap and free potential storage */
3771 if (rxq
->pool
[i
].skb
!= NULL
) {
3772 pci_unmap_single(priv
->pci_dev
,
3773 rxq
->pool
[i
].dma_addr
,
3774 IWL_RX_BUF_SIZE
, PCI_DMA_FROMDEVICE
);
3775 priv
->alloc_rxb_skb
--;
3776 dev_kfree_skb(rxq
->pool
[i
].skb
);
3777 rxq
->pool
[i
].skb
= NULL
;
3779 list_add_tail(&rxq
->pool
[i
].list
, &rxq
->rx_used
);
3782 /* Set us so that we have processed and used all buffers, but have
3783 * not restocked the Rx queue with fresh buffers */
3784 rxq
->read
= rxq
->write
= 0;
3785 rxq
->free_count
= 0;
3786 spin_unlock_irqrestore(&rxq
->lock
, flags
);
3789 /* Convert linear signal-to-noise ratio into dB */
3790 static u8 ratio2dB
[100] = {
3791 /* 0 1 2 3 4 5 6 7 8 9 */
3792 0, 0, 6, 10, 12, 14, 16, 17, 18, 19, /* 00 - 09 */
3793 20, 21, 22, 22, 23, 23, 24, 25, 26, 26, /* 10 - 19 */
3794 26, 26, 26, 27, 27, 28, 28, 28, 29, 29, /* 20 - 29 */
3795 29, 30, 30, 30, 31, 31, 31, 31, 32, 32, /* 30 - 39 */
3796 32, 32, 32, 33, 33, 33, 33, 33, 34, 34, /* 40 - 49 */
3797 34, 34, 34, 34, 35, 35, 35, 35, 35, 35, /* 50 - 59 */
3798 36, 36, 36, 36, 36, 36, 36, 37, 37, 37, /* 60 - 69 */
3799 37, 37, 37, 37, 37, 38, 38, 38, 38, 38, /* 70 - 79 */
3800 38, 38, 38, 38, 38, 39, 39, 39, 39, 39, /* 80 - 89 */
3801 39, 39, 39, 39, 39, 40, 40, 40, 40, 40 /* 90 - 99 */
3804 /* Calculates a relative dB value from a ratio of linear
3805 * (i.e. not dB) signal levels.
3806 * Conversion assumes that levels are voltages (20*log), not powers (10*log). */
3807 int iwl3945_calc_db_from_ratio(int sig_ratio
)
3809 /* 1000:1 or higher just report as 60 dB */
3810 if (sig_ratio
>= 1000)
3813 /* 100:1 or higher, divide by 10 and use table,
3814 * add 20 dB to make up for divide by 10 */
3815 if (sig_ratio
>= 100)
3816 return (20 + (int)ratio2dB
[sig_ratio
/10]);
3818 /* We shouldn't see this */
3822 /* Use table for ratios 1:1 - 99:1 */
3823 return (int)ratio2dB
[sig_ratio
];
3826 #define PERFECT_RSSI (-20) /* dBm */
3827 #define WORST_RSSI (-95) /* dBm */
3828 #define RSSI_RANGE (PERFECT_RSSI - WORST_RSSI)
3830 /* Calculate an indication of rx signal quality (a percentage, not dBm!).
3831 * See http://www.ces.clemson.edu/linux/signal_quality.shtml for info
3832 * about formulas used below. */
3833 int iwl3945_calc_sig_qual(int rssi_dbm
, int noise_dbm
)
3836 int degradation
= PERFECT_RSSI
- rssi_dbm
;
3838 /* If we get a noise measurement, use signal-to-noise ratio (SNR)
3839 * as indicator; formula is (signal dbm - noise dbm).
3840 * SNR at or above 40 is a great signal (100%).
3841 * Below that, scale to fit SNR of 0 - 40 dB within 0 - 100% indicator.
3842 * Weakest usable signal is usually 10 - 15 dB SNR. */
3844 if (rssi_dbm
- noise_dbm
>= 40)
3846 else if (rssi_dbm
< noise_dbm
)
3848 sig_qual
= ((rssi_dbm
- noise_dbm
) * 5) / 2;
3850 /* Else use just the signal level.
3851 * This formula is a least squares fit of data points collected and
3852 * compared with a reference system that had a percentage (%) display
3853 * for signal quality. */
3855 sig_qual
= (100 * (RSSI_RANGE
* RSSI_RANGE
) - degradation
*
3856 (15 * RSSI_RANGE
+ 62 * degradation
)) /
3857 (RSSI_RANGE
* RSSI_RANGE
);
3861 else if (sig_qual
< 1)
3868 * iwl3945_rx_handle - Main entry function for receiving responses from uCode
3870 * Uses the priv->rx_handlers callback function array to invoke
3871 * the appropriate handlers, including command responses,
3872 * frame-received notifications, and other notifications.
3874 static void iwl3945_rx_handle(struct iwl3945_priv
*priv
)
3876 struct iwl3945_rx_mem_buffer
*rxb
;
3877 struct iwl3945_rx_packet
*pkt
;
3878 struct iwl3945_rx_queue
*rxq
= &priv
->rxq
;
3881 unsigned long flags
;
3885 /* uCode's read index (stored in shared DRAM) indicates the last Rx
3886 * buffer that the driver may process (last buffer filled by ucode). */
3887 r
= iwl3945_hw_get_rx_read(priv
);
3890 if (iwl3945_rx_queue_space(rxq
) > (RX_QUEUE_SIZE
/ 2))
3892 /* Rx interrupt, but nothing sent from uCode */
3894 IWL_DEBUG(IWL_DL_RX
| IWL_DL_ISR
, "r = %d, i = %d\n", r
, i
);
3897 rxb
= rxq
->queue
[i
];
3899 /* If an RXB doesn't have a Rx queue slot associated with it,
3900 * then a bug has been introduced in the queue refilling
3901 * routines -- catch it here */
3902 BUG_ON(rxb
== NULL
);
3904 rxq
->queue
[i
] = NULL
;
3906 pci_dma_sync_single_for_cpu(priv
->pci_dev
, rxb
->dma_addr
,
3908 PCI_DMA_FROMDEVICE
);
3909 pkt
= (struct iwl3945_rx_packet
*)rxb
->skb
->data
;
3911 /* Reclaim a command buffer only if this packet is a response
3912 * to a (driver-originated) command.
3913 * If the packet (e.g. Rx frame) originated from uCode,
3914 * there is no command buffer to reclaim.
3915 * Ucode should set SEQ_RX_FRAME bit if ucode-originated,
3916 * but apparently a few don't get set; catch them here. */
3917 reclaim
= !(pkt
->hdr
.sequence
& SEQ_RX_FRAME
) &&
3918 (pkt
->hdr
.cmd
!= STATISTICS_NOTIFICATION
) &&
3919 (pkt
->hdr
.cmd
!= REPLY_TX
);
3921 /* Based on type of command response or notification,
3922 * handle those that need handling via function in
3923 * rx_handlers table. See iwl3945_setup_rx_handlers() */
3924 if (priv
->rx_handlers
[pkt
->hdr
.cmd
]) {
3925 IWL_DEBUG(IWL_DL_HOST_COMMAND
| IWL_DL_RX
| IWL_DL_ISR
,
3926 "r = %d, i = %d, %s, 0x%02x\n", r
, i
,
3927 get_cmd_string(pkt
->hdr
.cmd
), pkt
->hdr
.cmd
);
3928 priv
->rx_handlers
[pkt
->hdr
.cmd
] (priv
, rxb
);
3930 /* No handling needed */
3931 IWL_DEBUG(IWL_DL_HOST_COMMAND
| IWL_DL_RX
| IWL_DL_ISR
,
3932 "r %d i %d No handler needed for %s, 0x%02x\n",
3933 r
, i
, get_cmd_string(pkt
->hdr
.cmd
),
3938 /* Invoke any callbacks, transfer the skb to caller, and
3939 * fire off the (possibly) blocking iwl3945_send_cmd()
3940 * as we reclaim the driver command queue */
3941 if (rxb
&& rxb
->skb
)
3942 iwl3945_tx_cmd_complete(priv
, rxb
);
3944 IWL_WARNING("Claim null rxb?\n");
3947 /* For now we just don't re-use anything. We can tweak this
3948 * later to try and re-use notification packets and SKBs that
3949 * fail to Rx correctly */
3950 if (rxb
->skb
!= NULL
) {
3951 priv
->alloc_rxb_skb
--;
3952 dev_kfree_skb_any(rxb
->skb
);
3956 pci_unmap_single(priv
->pci_dev
, rxb
->dma_addr
,
3957 IWL_RX_BUF_SIZE
, PCI_DMA_FROMDEVICE
);
3958 spin_lock_irqsave(&rxq
->lock
, flags
);
3959 list_add_tail(&rxb
->list
, &priv
->rxq
.rx_used
);
3960 spin_unlock_irqrestore(&rxq
->lock
, flags
);
3961 i
= (i
+ 1) & RX_QUEUE_MASK
;
3962 /* If there are a lot of unused frames,
3963 * restock the Rx queue so ucode won't assert. */
3968 __iwl3945_rx_replenish(priv
);
3974 /* Backtrack one entry */
3976 iwl3945_rx_queue_restock(priv
);
3980 * iwl3945_tx_queue_update_write_ptr - Send new write index to hardware
3982 static int iwl3945_tx_queue_update_write_ptr(struct iwl3945_priv
*priv
,
3983 struct iwl3945_tx_queue
*txq
)
3987 int txq_id
= txq
->q
.id
;
3989 if (txq
->need_update
== 0)
3992 /* if we're trying to save power */
3993 if (test_bit(STATUS_POWER_PMI
, &priv
->status
)) {
3994 /* wake up nic if it's powered down ...
3995 * uCode will wake up, and interrupt us again, so next
3996 * time we'll skip this part. */
3997 reg
= iwl3945_read32(priv
, CSR_UCODE_DRV_GP1
);
3999 if (reg
& CSR_UCODE_DRV_GP1_BIT_MAC_SLEEP
) {
4000 IWL_DEBUG_INFO("Requesting wakeup, GP1 = 0x%x\n", reg
);
4001 iwl3945_set_bit(priv
, CSR_GP_CNTRL
,
4002 CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ
);
4006 /* restore this queue's parameters in nic hardware. */
4007 rc
= iwl3945_grab_nic_access(priv
);
4010 iwl3945_write_direct32(priv
, HBUS_TARG_WRPTR
,
4011 txq
->q
.write_ptr
| (txq_id
<< 8));
4012 iwl3945_release_nic_access(priv
);
4014 /* else not in power-save mode, uCode will never sleep when we're
4015 * trying to tx (during RFKILL, we're not trying to tx). */
4017 iwl3945_write32(priv
, HBUS_TARG_WRPTR
,
4018 txq
->q
.write_ptr
| (txq_id
<< 8));
4020 txq
->need_update
= 0;
4025 #ifdef CONFIG_IWL3945_DEBUG
4026 static void iwl3945_print_rx_config_cmd(struct iwl3945_rxon_cmd
*rxon
)
4028 DECLARE_MAC_BUF(mac
);
4030 IWL_DEBUG_RADIO("RX CONFIG:\n");
4031 iwl3945_print_hex_dump(IWL_DL_RADIO
, (u8
*) rxon
, sizeof(*rxon
));
4032 IWL_DEBUG_RADIO("u16 channel: 0x%x\n", le16_to_cpu(rxon
->channel
));
4033 IWL_DEBUG_RADIO("u32 flags: 0x%08X\n", le32_to_cpu(rxon
->flags
));
4034 IWL_DEBUG_RADIO("u32 filter_flags: 0x%08x\n",
4035 le32_to_cpu(rxon
->filter_flags
));
4036 IWL_DEBUG_RADIO("u8 dev_type: 0x%x\n", rxon
->dev_type
);
4037 IWL_DEBUG_RADIO("u8 ofdm_basic_rates: 0x%02x\n",
4038 rxon
->ofdm_basic_rates
);
4039 IWL_DEBUG_RADIO("u8 cck_basic_rates: 0x%02x\n", rxon
->cck_basic_rates
);
4040 IWL_DEBUG_RADIO("u8[6] node_addr: %s\n",
4041 print_mac(mac
, rxon
->node_addr
));
4042 IWL_DEBUG_RADIO("u8[6] bssid_addr: %s\n",
4043 print_mac(mac
, rxon
->bssid_addr
));
4044 IWL_DEBUG_RADIO("u16 assoc_id: 0x%x\n", le16_to_cpu(rxon
->assoc_id
));
4048 static void iwl3945_enable_interrupts(struct iwl3945_priv
*priv
)
4050 IWL_DEBUG_ISR("Enabling interrupts\n");
4051 set_bit(STATUS_INT_ENABLED
, &priv
->status
);
4052 iwl3945_write32(priv
, CSR_INT_MASK
, CSR_INI_SET_MASK
);
4056 /* call this function to flush any scheduled tasklet */
4057 static inline void iwl_synchronize_irq(struct iwl3945_priv
*priv
)
4059 /* wait to make sure we flush pedding tasklet*/
4060 synchronize_irq(priv
->pci_dev
->irq
);
4061 tasklet_kill(&priv
->irq_tasklet
);
4065 static inline void iwl3945_disable_interrupts(struct iwl3945_priv
*priv
)
4067 clear_bit(STATUS_INT_ENABLED
, &priv
->status
);
4069 /* disable interrupts from uCode/NIC to host */
4070 iwl3945_write32(priv
, CSR_INT_MASK
, 0x00000000);
4072 /* acknowledge/clear/reset any interrupts still pending
4073 * from uCode or flow handler (Rx/Tx DMA) */
4074 iwl3945_write32(priv
, CSR_INT
, 0xffffffff);
4075 iwl3945_write32(priv
, CSR_FH_INT_STATUS
, 0xffffffff);
4076 IWL_DEBUG_ISR("Disabled interrupts\n");
4079 static const char *desc_lookup(int i
)
4087 return "BAD_CHECKSUM";
4089 return "NMI_INTERRUPT";
4093 return "FATAL_ERROR";
4099 #define ERROR_START_OFFSET (1 * sizeof(u32))
4100 #define ERROR_ELEM_SIZE (7 * sizeof(u32))
4102 static void iwl3945_dump_nic_error_log(struct iwl3945_priv
*priv
)
4105 u32 desc
, time
, count
, base
, data1
;
4106 u32 blink1
, blink2
, ilink1
, ilink2
;
4109 base
= le32_to_cpu(priv
->card_alive
.error_event_table_ptr
);
4111 if (!iwl3945_hw_valid_rtc_data_addr(base
)) {
4112 IWL_ERROR("Not valid error log pointer 0x%08X\n", base
);
4116 rc
= iwl3945_grab_nic_access(priv
);
4118 IWL_WARNING("Can not read from adapter at this time.\n");
4122 count
= iwl3945_read_targ_mem(priv
, base
);
4124 if (ERROR_START_OFFSET
<= count
* ERROR_ELEM_SIZE
) {
4125 IWL_ERROR("Start IWL Error Log Dump:\n");
4126 IWL_ERROR("Status: 0x%08lX, count: %d\n", priv
->status
, count
);
4129 IWL_ERROR("Desc Time asrtPC blink2 "
4130 "ilink1 nmiPC Line\n");
4131 for (i
= ERROR_START_OFFSET
;
4132 i
< (count
* ERROR_ELEM_SIZE
) + ERROR_START_OFFSET
;
4133 i
+= ERROR_ELEM_SIZE
) {
4134 desc
= iwl3945_read_targ_mem(priv
, base
+ i
);
4136 iwl3945_read_targ_mem(priv
, base
+ i
+ 1 * sizeof(u32
));
4138 iwl3945_read_targ_mem(priv
, base
+ i
+ 2 * sizeof(u32
));
4140 iwl3945_read_targ_mem(priv
, base
+ i
+ 3 * sizeof(u32
));
4142 iwl3945_read_targ_mem(priv
, base
+ i
+ 4 * sizeof(u32
));
4144 iwl3945_read_targ_mem(priv
, base
+ i
+ 5 * sizeof(u32
));
4146 iwl3945_read_targ_mem(priv
, base
+ i
+ 6 * sizeof(u32
));
4149 ("%-13s (#%d) %010u 0x%05X 0x%05X 0x%05X 0x%05X %u\n\n",
4150 desc_lookup(desc
), desc
, time
, blink1
, blink2
,
4151 ilink1
, ilink2
, data1
);
4154 iwl3945_release_nic_access(priv
);
4158 #define EVENT_START_OFFSET (6 * sizeof(u32))
4161 * iwl3945_print_event_log - Dump error event log to syslog
4163 * NOTE: Must be called with iwl3945_grab_nic_access() already obtained!
4165 static void iwl3945_print_event_log(struct iwl3945_priv
*priv
, u32 start_idx
,
4166 u32 num_events
, u32 mode
)
4169 u32 base
; /* SRAM byte address of event log header */
4170 u32 event_size
; /* 2 u32s, or 3 u32s if timestamp recorded */
4171 u32 ptr
; /* SRAM byte address of log data */
4172 u32 ev
, time
, data
; /* event log data */
4174 if (num_events
== 0)
4177 base
= le32_to_cpu(priv
->card_alive
.log_event_table_ptr
);
4180 event_size
= 2 * sizeof(u32
);
4182 event_size
= 3 * sizeof(u32
);
4184 ptr
= base
+ EVENT_START_OFFSET
+ (start_idx
* event_size
);
4186 /* "time" is actually "data" for mode 0 (no timestamp).
4187 * place event id # at far right for easier visual parsing. */
4188 for (i
= 0; i
< num_events
; i
++) {
4189 ev
= iwl3945_read_targ_mem(priv
, ptr
);
4191 time
= iwl3945_read_targ_mem(priv
, ptr
);
4194 IWL_ERROR("0x%08x\t%04u\n", time
, ev
); /* data, ev */
4196 data
= iwl3945_read_targ_mem(priv
, ptr
);
4198 IWL_ERROR("%010u\t0x%08x\t%04u\n", time
, data
, ev
);
4203 static void iwl3945_dump_nic_event_log(struct iwl3945_priv
*priv
)
4206 u32 base
; /* SRAM byte address of event log header */
4207 u32 capacity
; /* event log capacity in # entries */
4208 u32 mode
; /* 0 - no timestamp, 1 - timestamp recorded */
4209 u32 num_wraps
; /* # times uCode wrapped to top of log */
4210 u32 next_entry
; /* index of next entry to be written by uCode */
4211 u32 size
; /* # entries that we'll print */
4213 base
= le32_to_cpu(priv
->card_alive
.log_event_table_ptr
);
4214 if (!iwl3945_hw_valid_rtc_data_addr(base
)) {
4215 IWL_ERROR("Invalid event log pointer 0x%08X\n", base
);
4219 rc
= iwl3945_grab_nic_access(priv
);
4221 IWL_WARNING("Can not read from adapter at this time.\n");
4225 /* event log header */
4226 capacity
= iwl3945_read_targ_mem(priv
, base
);
4227 mode
= iwl3945_read_targ_mem(priv
, base
+ (1 * sizeof(u32
)));
4228 num_wraps
= iwl3945_read_targ_mem(priv
, base
+ (2 * sizeof(u32
)));
4229 next_entry
= iwl3945_read_targ_mem(priv
, base
+ (3 * sizeof(u32
)));
4231 size
= num_wraps
? capacity
: next_entry
;
4233 /* bail out if nothing in log */
4235 IWL_ERROR("Start IWL Event Log Dump: nothing in log\n");
4236 iwl3945_release_nic_access(priv
);
4240 IWL_ERROR("Start IWL Event Log Dump: display count %d, wraps %d\n",
4243 /* if uCode has wrapped back to top of log, start at the oldest entry,
4244 * i.e the next one that uCode would fill. */
4246 iwl3945_print_event_log(priv
, next_entry
,
4247 capacity
- next_entry
, mode
);
4249 /* (then/else) start at top of log */
4250 iwl3945_print_event_log(priv
, 0, next_entry
, mode
);
4252 iwl3945_release_nic_access(priv
);
4256 * iwl3945_irq_handle_error - called for HW or SW error interrupt from card
4258 static void iwl3945_irq_handle_error(struct iwl3945_priv
*priv
)
4260 /* Set the FW error flag -- cleared on iwl3945_down */
4261 set_bit(STATUS_FW_ERROR
, &priv
->status
);
4263 /* Cancel currently queued command. */
4264 clear_bit(STATUS_HCMD_ACTIVE
, &priv
->status
);
4266 #ifdef CONFIG_IWL3945_DEBUG
4267 if (iwl3945_debug_level
& IWL_DL_FW_ERRORS
) {
4268 iwl3945_dump_nic_error_log(priv
);
4269 iwl3945_dump_nic_event_log(priv
);
4270 iwl3945_print_rx_config_cmd(&priv
->staging_rxon
);
4274 wake_up_interruptible(&priv
->wait_command_queue
);
4276 /* Keep the restart process from trying to send host
4277 * commands by clearing the INIT status bit */
4278 clear_bit(STATUS_READY
, &priv
->status
);
4280 if (!test_bit(STATUS_EXIT_PENDING
, &priv
->status
)) {
4281 IWL_DEBUG(IWL_DL_INFO
| IWL_DL_FW_ERRORS
,
4282 "Restarting adapter due to uCode error.\n");
4284 if (iwl3945_is_associated(priv
)) {
4285 memcpy(&priv
->recovery_rxon
, &priv
->active_rxon
,
4286 sizeof(priv
->recovery_rxon
));
4287 priv
->error_recovering
= 1;
4289 queue_work(priv
->workqueue
, &priv
->restart
);
4293 static void iwl3945_error_recovery(struct iwl3945_priv
*priv
)
4295 unsigned long flags
;
4297 memcpy(&priv
->staging_rxon
, &priv
->recovery_rxon
,
4298 sizeof(priv
->staging_rxon
));
4299 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
4300 iwl3945_commit_rxon(priv
);
4302 iwl3945_add_station(priv
, priv
->bssid
, 1, 0);
4304 spin_lock_irqsave(&priv
->lock
, flags
);
4305 priv
->assoc_id
= le16_to_cpu(priv
->staging_rxon
.assoc_id
);
4306 priv
->error_recovering
= 0;
4307 spin_unlock_irqrestore(&priv
->lock
, flags
);
4310 static void iwl3945_irq_tasklet(struct iwl3945_priv
*priv
)
4312 u32 inta
, handled
= 0;
4314 unsigned long flags
;
4315 #ifdef CONFIG_IWL3945_DEBUG
4319 spin_lock_irqsave(&priv
->lock
, flags
);
4321 /* Ack/clear/reset pending uCode interrupts.
4322 * Note: Some bits in CSR_INT are "OR" of bits in CSR_FH_INT_STATUS,
4323 * and will clear only when CSR_FH_INT_STATUS gets cleared. */
4324 inta
= iwl3945_read32(priv
, CSR_INT
);
4325 iwl3945_write32(priv
, CSR_INT
, inta
);
4327 /* Ack/clear/reset pending flow-handler (DMA) interrupts.
4328 * Any new interrupts that happen after this, either while we're
4329 * in this tasklet, or later, will show up in next ISR/tasklet. */
4330 inta_fh
= iwl3945_read32(priv
, CSR_FH_INT_STATUS
);
4331 iwl3945_write32(priv
, CSR_FH_INT_STATUS
, inta_fh
);
4333 #ifdef CONFIG_IWL3945_DEBUG
4334 if (iwl3945_debug_level
& IWL_DL_ISR
) {
4335 /* just for debug */
4336 inta_mask
= iwl3945_read32(priv
, CSR_INT_MASK
);
4337 IWL_DEBUG_ISR("inta 0x%08x, enabled 0x%08x, fh 0x%08x\n",
4338 inta
, inta_mask
, inta_fh
);
4342 /* Since CSR_INT and CSR_FH_INT_STATUS reads and clears are not
4343 * atomic, make sure that inta covers all the interrupts that
4344 * we've discovered, even if FH interrupt came in just after
4345 * reading CSR_INT. */
4346 if (inta_fh
& CSR39_FH_INT_RX_MASK
)
4347 inta
|= CSR_INT_BIT_FH_RX
;
4348 if (inta_fh
& CSR39_FH_INT_TX_MASK
)
4349 inta
|= CSR_INT_BIT_FH_TX
;
4351 /* Now service all interrupt bits discovered above. */
4352 if (inta
& CSR_INT_BIT_HW_ERR
) {
4353 IWL_ERROR("Microcode HW error detected. Restarting.\n");
4355 /* Tell the device to stop sending interrupts */
4356 iwl3945_disable_interrupts(priv
);
4358 iwl3945_irq_handle_error(priv
);
4360 handled
|= CSR_INT_BIT_HW_ERR
;
4362 spin_unlock_irqrestore(&priv
->lock
, flags
);
4367 #ifdef CONFIG_IWL3945_DEBUG
4368 if (iwl3945_debug_level
& (IWL_DL_ISR
)) {
4369 /* NIC fires this, but we don't use it, redundant with WAKEUP */
4370 if (inta
& CSR_INT_BIT_SCD
)
4371 IWL_DEBUG_ISR("Scheduler finished to transmit "
4372 "the frame/frames.\n");
4374 /* Alive notification via Rx interrupt will do the real work */
4375 if (inta
& CSR_INT_BIT_ALIVE
)
4376 IWL_DEBUG_ISR("Alive interrupt\n");
4379 /* Safely ignore these bits for debug checks below */
4380 inta
&= ~(CSR_INT_BIT_SCD
| CSR_INT_BIT_ALIVE
);
4382 /* HW RF KILL switch toggled (4965 only) */
4383 if (inta
& CSR_INT_BIT_RF_KILL
) {
4385 if (!(iwl3945_read32(priv
, CSR_GP_CNTRL
) &
4386 CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW
))
4389 IWL_DEBUG(IWL_DL_INFO
| IWL_DL_RF_KILL
| IWL_DL_ISR
,
4390 "RF_KILL bit toggled to %s.\n",
4391 hw_rf_kill
? "disable radio":"enable radio");
4393 /* Queue restart only if RF_KILL switch was set to "kill"
4394 * when we loaded driver, and is now set to "enable".
4395 * After we're Alive, RF_KILL gets handled by
4396 * iwl3945_rx_card_state_notif() */
4397 if (!hw_rf_kill
&& !test_bit(STATUS_ALIVE
, &priv
->status
)) {
4398 clear_bit(STATUS_RF_KILL_HW
, &priv
->status
);
4399 queue_work(priv
->workqueue
, &priv
->restart
);
4402 handled
|= CSR_INT_BIT_RF_KILL
;
4405 /* Chip got too hot and stopped itself (4965 only) */
4406 if (inta
& CSR_INT_BIT_CT_KILL
) {
4407 IWL_ERROR("Microcode CT kill error detected.\n");
4408 handled
|= CSR_INT_BIT_CT_KILL
;
4411 /* Error detected by uCode */
4412 if (inta
& CSR_INT_BIT_SW_ERR
) {
4413 IWL_ERROR("Microcode SW error detected. Restarting 0x%X.\n",
4415 iwl3945_irq_handle_error(priv
);
4416 handled
|= CSR_INT_BIT_SW_ERR
;
4419 /* uCode wakes up after power-down sleep */
4420 if (inta
& CSR_INT_BIT_WAKEUP
) {
4421 IWL_DEBUG_ISR("Wakeup interrupt\n");
4422 iwl3945_rx_queue_update_write_ptr(priv
, &priv
->rxq
);
4423 iwl3945_tx_queue_update_write_ptr(priv
, &priv
->txq
[0]);
4424 iwl3945_tx_queue_update_write_ptr(priv
, &priv
->txq
[1]);
4425 iwl3945_tx_queue_update_write_ptr(priv
, &priv
->txq
[2]);
4426 iwl3945_tx_queue_update_write_ptr(priv
, &priv
->txq
[3]);
4427 iwl3945_tx_queue_update_write_ptr(priv
, &priv
->txq
[4]);
4428 iwl3945_tx_queue_update_write_ptr(priv
, &priv
->txq
[5]);
4430 handled
|= CSR_INT_BIT_WAKEUP
;
4433 /* All uCode command responses, including Tx command responses,
4434 * Rx "responses" (frame-received notification), and other
4435 * notifications from uCode come through here*/
4436 if (inta
& (CSR_INT_BIT_FH_RX
| CSR_INT_BIT_SW_RX
)) {
4437 iwl3945_rx_handle(priv
);
4438 handled
|= (CSR_INT_BIT_FH_RX
| CSR_INT_BIT_SW_RX
);
4441 if (inta
& CSR_INT_BIT_FH_TX
) {
4442 IWL_DEBUG_ISR("Tx interrupt\n");
4444 iwl3945_write32(priv
, CSR_FH_INT_STATUS
, (1 << 6));
4445 if (!iwl3945_grab_nic_access(priv
)) {
4446 iwl3945_write_direct32(priv
,
4448 (ALM_FH_SRVC_CHNL
), 0x0);
4449 iwl3945_release_nic_access(priv
);
4451 handled
|= CSR_INT_BIT_FH_TX
;
4454 if (inta
& ~handled
)
4455 IWL_ERROR("Unhandled INTA bits 0x%08x\n", inta
& ~handled
);
4457 if (inta
& ~CSR_INI_SET_MASK
) {
4458 IWL_WARNING("Disabled INTA bits 0x%08x were pending\n",
4459 inta
& ~CSR_INI_SET_MASK
);
4460 IWL_WARNING(" with FH_INT = 0x%08x\n", inta_fh
);
4463 /* Re-enable all interrupts */
4464 /* only Re-enable if disabled by irq */
4465 if (test_bit(STATUS_INT_ENABLED
, &priv
->status
))
4466 iwl3945_enable_interrupts(priv
);
4468 #ifdef CONFIG_IWL3945_DEBUG
4469 if (iwl3945_debug_level
& (IWL_DL_ISR
)) {
4470 inta
= iwl3945_read32(priv
, CSR_INT
);
4471 inta_mask
= iwl3945_read32(priv
, CSR_INT_MASK
);
4472 inta_fh
= iwl3945_read32(priv
, CSR_FH_INT_STATUS
);
4473 IWL_DEBUG_ISR("End inta 0x%08x, enabled 0x%08x, fh 0x%08x, "
4474 "flags 0x%08lx\n", inta
, inta_mask
, inta_fh
, flags
);
4477 spin_unlock_irqrestore(&priv
->lock
, flags
);
4480 static irqreturn_t
iwl3945_isr(int irq
, void *data
)
4482 struct iwl3945_priv
*priv
= data
;
4483 u32 inta
, inta_mask
;
4488 spin_lock(&priv
->lock
);
4490 /* Disable (but don't clear!) interrupts here to avoid
4491 * back-to-back ISRs and sporadic interrupts from our NIC.
4492 * If we have something to service, the tasklet will re-enable ints.
4493 * If we *don't* have something, we'll re-enable before leaving here. */
4494 inta_mask
= iwl3945_read32(priv
, CSR_INT_MASK
); /* just for debug */
4495 iwl3945_write32(priv
, CSR_INT_MASK
, 0x00000000);
4497 /* Discover which interrupts are active/pending */
4498 inta
= iwl3945_read32(priv
, CSR_INT
);
4499 inta_fh
= iwl3945_read32(priv
, CSR_FH_INT_STATUS
);
4501 /* Ignore interrupt if there's nothing in NIC to service.
4502 * This may be due to IRQ shared with another device,
4503 * or due to sporadic interrupts thrown from our NIC. */
4504 if (!inta
&& !inta_fh
) {
4505 IWL_DEBUG_ISR("Ignore interrupt, inta == 0, inta_fh == 0\n");
4509 if ((inta
== 0xFFFFFFFF) || ((inta
& 0xFFFFFFF0) == 0xa5a5a5a0)) {
4510 /* Hardware disappeared */
4511 IWL_WARNING("HARDWARE GONE?? INTA == 0x%080x\n", inta
);
4515 IWL_DEBUG_ISR("ISR inta 0x%08x, enabled 0x%08x, fh 0x%08x\n",
4516 inta
, inta_mask
, inta_fh
);
4518 inta
&= ~CSR_INT_BIT_SCD
;
4520 /* iwl3945_irq_tasklet() will service interrupts and re-enable them */
4521 if (likely(inta
|| inta_fh
))
4522 tasklet_schedule(&priv
->irq_tasklet
);
4524 spin_unlock(&priv
->lock
);
4529 /* re-enable interrupts here since we don't have anything to service. */
4530 /* only Re-enable if disabled by irq */
4531 if (test_bit(STATUS_INT_ENABLED
, &priv
->status
))
4532 iwl3945_enable_interrupts(priv
);
4533 spin_unlock(&priv
->lock
);
4537 /************************** EEPROM BANDS ****************************
4539 * The iwl3945_eeprom_band definitions below provide the mapping from the
4540 * EEPROM contents to the specific channel number supported for each
4543 * For example, iwl3945_priv->eeprom.band_3_channels[4] from the band_3
4544 * definition below maps to physical channel 42 in the 5.2GHz spectrum.
4545 * The specific geography and calibration information for that channel
4546 * is contained in the eeprom map itself.
4548 * During init, we copy the eeprom information and channel map
4549 * information into priv->channel_info_24/52 and priv->channel_map_24/52
4551 * channel_map_24/52 provides the index in the channel_info array for a
4552 * given channel. We have to have two separate maps as there is channel
4553 * overlap with the 2.4GHz and 5.2GHz spectrum as seen in band_1 and
4556 * A value of 0xff stored in the channel_map indicates that the channel
4557 * is not supported by the hardware at all.
4559 * A value of 0xfe in the channel_map indicates that the channel is not
4560 * valid for Tx with the current hardware. This means that
4561 * while the system can tune and receive on a given channel, it may not
4562 * be able to associate or transmit any frames on that
4563 * channel. There is no corresponding channel information for that
4566 *********************************************************************/
4569 static const u8 iwl3945_eeprom_band_1
[14] = {
4570 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14
4574 static const u8 iwl3945_eeprom_band_2
[] = { /* 4915-5080MHz */
4575 183, 184, 185, 187, 188, 189, 192, 196, 7, 8, 11, 12, 16
4578 static const u8 iwl3945_eeprom_band_3
[] = { /* 5170-5320MHz */
4579 34, 36, 38, 40, 42, 44, 46, 48, 52, 56, 60, 64
4582 static const u8 iwl3945_eeprom_band_4
[] = { /* 5500-5700MHz */
4583 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140
4586 static const u8 iwl3945_eeprom_band_5
[] = { /* 5725-5825MHz */
4587 145, 149, 153, 157, 161, 165
4590 static void iwl3945_init_band_reference(const struct iwl3945_priv
*priv
, int band
,
4591 int *eeprom_ch_count
,
4592 const struct iwl3945_eeprom_channel
4594 const u8
**eeprom_ch_index
)
4597 case 1: /* 2.4GHz band */
4598 *eeprom_ch_count
= ARRAY_SIZE(iwl3945_eeprom_band_1
);
4599 *eeprom_ch_info
= priv
->eeprom
.band_1_channels
;
4600 *eeprom_ch_index
= iwl3945_eeprom_band_1
;
4602 case 2: /* 4.9GHz band */
4603 *eeprom_ch_count
= ARRAY_SIZE(iwl3945_eeprom_band_2
);
4604 *eeprom_ch_info
= priv
->eeprom
.band_2_channels
;
4605 *eeprom_ch_index
= iwl3945_eeprom_band_2
;
4607 case 3: /* 5.2GHz band */
4608 *eeprom_ch_count
= ARRAY_SIZE(iwl3945_eeprom_band_3
);
4609 *eeprom_ch_info
= priv
->eeprom
.band_3_channels
;
4610 *eeprom_ch_index
= iwl3945_eeprom_band_3
;
4612 case 4: /* 5.5GHz band */
4613 *eeprom_ch_count
= ARRAY_SIZE(iwl3945_eeprom_band_4
);
4614 *eeprom_ch_info
= priv
->eeprom
.band_4_channels
;
4615 *eeprom_ch_index
= iwl3945_eeprom_band_4
;
4617 case 5: /* 5.7GHz band */
4618 *eeprom_ch_count
= ARRAY_SIZE(iwl3945_eeprom_band_5
);
4619 *eeprom_ch_info
= priv
->eeprom
.band_5_channels
;
4620 *eeprom_ch_index
= iwl3945_eeprom_band_5
;
4629 * iwl3945_get_channel_info - Find driver's private channel info
4631 * Based on band and channel number.
4633 const struct iwl3945_channel_info
*iwl3945_get_channel_info(const struct iwl3945_priv
*priv
,
4634 enum ieee80211_band band
, u16 channel
)
4639 case IEEE80211_BAND_5GHZ
:
4640 for (i
= 14; i
< priv
->channel_count
; i
++) {
4641 if (priv
->channel_info
[i
].channel
== channel
)
4642 return &priv
->channel_info
[i
];
4646 case IEEE80211_BAND_2GHZ
:
4647 if (channel
>= 1 && channel
<= 14)
4648 return &priv
->channel_info
[channel
- 1];
4650 case IEEE80211_NUM_BANDS
:
4657 #define CHECK_AND_PRINT(x) ((eeprom_ch_info[ch].flags & EEPROM_CHANNEL_##x) \
4661 * iwl3945_init_channel_map - Set up driver's info for all possible channels
4663 static int iwl3945_init_channel_map(struct iwl3945_priv
*priv
)
4665 int eeprom_ch_count
= 0;
4666 const u8
*eeprom_ch_index
= NULL
;
4667 const struct iwl3945_eeprom_channel
*eeprom_ch_info
= NULL
;
4669 struct iwl3945_channel_info
*ch_info
;
4671 if (priv
->channel_count
) {
4672 IWL_DEBUG_INFO("Channel map already initialized.\n");
4676 if (priv
->eeprom
.version
< 0x2f) {
4677 IWL_WARNING("Unsupported EEPROM version: 0x%04X\n",
4678 priv
->eeprom
.version
);
4682 IWL_DEBUG_INFO("Initializing regulatory info from EEPROM\n");
4684 priv
->channel_count
=
4685 ARRAY_SIZE(iwl3945_eeprom_band_1
) +
4686 ARRAY_SIZE(iwl3945_eeprom_band_2
) +
4687 ARRAY_SIZE(iwl3945_eeprom_band_3
) +
4688 ARRAY_SIZE(iwl3945_eeprom_band_4
) +
4689 ARRAY_SIZE(iwl3945_eeprom_band_5
);
4691 IWL_DEBUG_INFO("Parsing data for %d channels.\n", priv
->channel_count
);
4693 priv
->channel_info
= kzalloc(sizeof(struct iwl3945_channel_info
) *
4694 priv
->channel_count
, GFP_KERNEL
);
4695 if (!priv
->channel_info
) {
4696 IWL_ERROR("Could not allocate channel_info\n");
4697 priv
->channel_count
= 0;
4701 ch_info
= priv
->channel_info
;
4703 /* Loop through the 5 EEPROM bands adding them in order to the
4704 * channel map we maintain (that contains additional information than
4705 * what just in the EEPROM) */
4706 for (band
= 1; band
<= 5; band
++) {
4708 iwl3945_init_band_reference(priv
, band
, &eeprom_ch_count
,
4709 &eeprom_ch_info
, &eeprom_ch_index
);
4711 /* Loop through each band adding each of the channels */
4712 for (ch
= 0; ch
< eeprom_ch_count
; ch
++) {
4713 ch_info
->channel
= eeprom_ch_index
[ch
];
4714 ch_info
->band
= (band
== 1) ? IEEE80211_BAND_2GHZ
:
4715 IEEE80211_BAND_5GHZ
;
4717 /* permanently store EEPROM's channel regulatory flags
4718 * and max power in channel info database. */
4719 ch_info
->eeprom
= eeprom_ch_info
[ch
];
4721 /* Copy the run-time flags so they are there even on
4722 * invalid channels */
4723 ch_info
->flags
= eeprom_ch_info
[ch
].flags
;
4725 if (!(is_channel_valid(ch_info
))) {
4726 IWL_DEBUG_INFO("Ch. %d Flags %x [%sGHz] - "
4730 is_channel_a_band(ch_info
) ?
4736 /* Initialize regulatory-based run-time data */
4737 ch_info
->max_power_avg
= ch_info
->curr_txpow
=
4738 eeprom_ch_info
[ch
].max_power_avg
;
4739 ch_info
->scan_power
= eeprom_ch_info
[ch
].max_power_avg
;
4740 ch_info
->min_power
= 0;
4742 IWL_DEBUG_INFO("Ch. %d [%sGHz] %s%s%s%s%s%s(0x%02x"
4743 " %ddBm): Ad-Hoc %ssupported\n",
4745 is_channel_a_band(ch_info
) ?
4747 CHECK_AND_PRINT(VALID
),
4748 CHECK_AND_PRINT(IBSS
),
4749 CHECK_AND_PRINT(ACTIVE
),
4750 CHECK_AND_PRINT(RADAR
),
4751 CHECK_AND_PRINT(WIDE
),
4752 CHECK_AND_PRINT(DFS
),
4753 eeprom_ch_info
[ch
].flags
,
4754 eeprom_ch_info
[ch
].max_power_avg
,
4755 ((eeprom_ch_info
[ch
].
4756 flags
& EEPROM_CHANNEL_IBSS
)
4757 && !(eeprom_ch_info
[ch
].
4758 flags
& EEPROM_CHANNEL_RADAR
))
4761 /* Set the user_txpower_limit to the highest power
4762 * supported by any channel */
4763 if (eeprom_ch_info
[ch
].max_power_avg
>
4764 priv
->user_txpower_limit
)
4765 priv
->user_txpower_limit
=
4766 eeprom_ch_info
[ch
].max_power_avg
;
4772 /* Set up txpower settings in driver for all channels */
4773 if (iwl3945_txpower_set_from_eeprom(priv
))
4780 * iwl3945_free_channel_map - undo allocations in iwl3945_init_channel_map
4782 static void iwl3945_free_channel_map(struct iwl3945_priv
*priv
)
4784 kfree(priv
->channel_info
);
4785 priv
->channel_count
= 0;
4788 /* For active scan, listen ACTIVE_DWELL_TIME (msec) on each channel after
4789 * sending probe req. This should be set long enough to hear probe responses
4790 * from more than one AP. */
4791 #define IWL_ACTIVE_DWELL_TIME_24 (20) /* all times in msec */
4792 #define IWL_ACTIVE_DWELL_TIME_52 (10)
4794 /* For faster active scanning, scan will move to the next channel if fewer than
4795 * PLCP_QUIET_THRESH packets are heard on this channel within
4796 * ACTIVE_QUIET_TIME after sending probe request. This shortens the dwell
4797 * time if it's a quiet channel (nothing responded to our probe, and there's
4798 * no other traffic).
4799 * Disable "quiet" feature by setting PLCP_QUIET_THRESH to 0. */
4800 #define IWL_PLCP_QUIET_THRESH __constant_cpu_to_le16(1) /* packets */
4801 #define IWL_ACTIVE_QUIET_TIME __constant_cpu_to_le16(5) /* msec */
4803 /* For passive scan, listen PASSIVE_DWELL_TIME (msec) on each channel.
4804 * Must be set longer than active dwell time.
4805 * For the most reliable scan, set > AP beacon interval (typically 100msec). */
4806 #define IWL_PASSIVE_DWELL_TIME_24 (20) /* all times in msec */
4807 #define IWL_PASSIVE_DWELL_TIME_52 (10)
4808 #define IWL_PASSIVE_DWELL_BASE (100)
4809 #define IWL_CHANNEL_TUNE_TIME 5
4811 static inline u16
iwl3945_get_active_dwell_time(struct iwl3945_priv
*priv
,
4812 enum ieee80211_band band
)
4814 if (band
== IEEE80211_BAND_5GHZ
)
4815 return IWL_ACTIVE_DWELL_TIME_52
;
4817 return IWL_ACTIVE_DWELL_TIME_24
;
4820 static u16
iwl3945_get_passive_dwell_time(struct iwl3945_priv
*priv
,
4821 enum ieee80211_band band
)
4823 u16 active
= iwl3945_get_active_dwell_time(priv
, band
);
4824 u16 passive
= (band
== IEEE80211_BAND_2GHZ
) ?
4825 IWL_PASSIVE_DWELL_BASE
+ IWL_PASSIVE_DWELL_TIME_24
:
4826 IWL_PASSIVE_DWELL_BASE
+ IWL_PASSIVE_DWELL_TIME_52
;
4828 if (iwl3945_is_associated(priv
)) {
4829 /* If we're associated, we clamp the maximum passive
4830 * dwell time to be 98% of the beacon interval (minus
4831 * 2 * channel tune time) */
4832 passive
= priv
->beacon_int
;
4833 if ((passive
> IWL_PASSIVE_DWELL_BASE
) || !passive
)
4834 passive
= IWL_PASSIVE_DWELL_BASE
;
4835 passive
= (passive
* 98) / 100 - IWL_CHANNEL_TUNE_TIME
* 2;
4838 if (passive
<= active
)
4839 passive
= active
+ 1;
4844 static int iwl3945_get_channels_for_scan(struct iwl3945_priv
*priv
,
4845 enum ieee80211_band band
,
4846 u8 is_active
, u8 direct_mask
,
4847 struct iwl3945_scan_channel
*scan_ch
)
4849 const struct ieee80211_channel
*channels
= NULL
;
4850 const struct ieee80211_supported_band
*sband
;
4851 const struct iwl3945_channel_info
*ch_info
;
4852 u16 passive_dwell
= 0;
4853 u16 active_dwell
= 0;
4856 sband
= iwl3945_get_band(priv
, band
);
4860 channels
= sband
->channels
;
4862 active_dwell
= iwl3945_get_active_dwell_time(priv
, band
);
4863 passive_dwell
= iwl3945_get_passive_dwell_time(priv
, band
);
4865 for (i
= 0, added
= 0; i
< sband
->n_channels
; i
++) {
4866 if (channels
[i
].flags
& IEEE80211_CHAN_DISABLED
)
4869 scan_ch
->channel
= channels
[i
].hw_value
;
4871 ch_info
= iwl3945_get_channel_info(priv
, band
, scan_ch
->channel
);
4872 if (!is_channel_valid(ch_info
)) {
4873 IWL_DEBUG_SCAN("Channel %d is INVALID for this band.\n",
4878 if (!is_active
|| is_channel_passive(ch_info
) ||
4879 (channels
[i
].flags
& IEEE80211_CHAN_PASSIVE_SCAN
))
4880 scan_ch
->type
= 0; /* passive */
4882 scan_ch
->type
= 1; /* active */
4884 if (scan_ch
->type
& 1)
4885 scan_ch
->type
|= (direct_mask
<< 1);
4887 scan_ch
->active_dwell
= cpu_to_le16(active_dwell
);
4888 scan_ch
->passive_dwell
= cpu_to_le16(passive_dwell
);
4890 /* Set txpower levels to defaults */
4891 scan_ch
->tpc
.dsp_atten
= 110;
4892 /* scan_pwr_info->tpc.dsp_atten; */
4894 /*scan_pwr_info->tpc.tx_gain; */
4895 if (band
== IEEE80211_BAND_5GHZ
)
4896 scan_ch
->tpc
.tx_gain
= ((1 << 5) | (3 << 3)) | 3;
4898 scan_ch
->tpc
.tx_gain
= ((1 << 5) | (5 << 3));
4899 /* NOTE: if we were doing 6Mb OFDM for scans we'd use
4901 * scan_ch->tpc.tx_gain = ((1 << 5) | (2 << 3)) | 3;
4905 IWL_DEBUG_SCAN("Scanning %d [%s %d]\n",
4907 (scan_ch
->type
& 1) ? "ACTIVE" : "PASSIVE",
4908 (scan_ch
->type
& 1) ?
4909 active_dwell
: passive_dwell
);
4915 IWL_DEBUG_SCAN("total channels to scan %d \n", added
);
4919 static void iwl3945_init_hw_rates(struct iwl3945_priv
*priv
,
4920 struct ieee80211_rate
*rates
)
4924 for (i
= 0; i
< IWL_RATE_COUNT
; i
++) {
4925 rates
[i
].bitrate
= iwl3945_rates
[i
].ieee
* 5;
4926 rates
[i
].hw_value
= i
; /* Rate scaling will work on indexes */
4927 rates
[i
].hw_value_short
= i
;
4929 if ((i
> IWL_LAST_OFDM_RATE
) || (i
< IWL_FIRST_OFDM_RATE
)) {
4931 * If CCK != 1M then set short preamble rate flag.
4933 rates
[i
].flags
|= (iwl3945_rates
[i
].plcp
== 10) ?
4934 0 : IEEE80211_RATE_SHORT_PREAMBLE
;
4940 * iwl3945_init_geos - Initialize mac80211's geo/channel info based from eeprom
4942 static int iwl3945_init_geos(struct iwl3945_priv
*priv
)
4944 struct iwl3945_channel_info
*ch
;
4945 struct ieee80211_supported_band
*sband
;
4946 struct ieee80211_channel
*channels
;
4947 struct ieee80211_channel
*geo_ch
;
4948 struct ieee80211_rate
*rates
;
4951 if (priv
->bands
[IEEE80211_BAND_2GHZ
].n_bitrates
||
4952 priv
->bands
[IEEE80211_BAND_5GHZ
].n_bitrates
) {
4953 IWL_DEBUG_INFO("Geography modes already initialized.\n");
4954 set_bit(STATUS_GEO_CONFIGURED
, &priv
->status
);
4958 channels
= kzalloc(sizeof(struct ieee80211_channel
) *
4959 priv
->channel_count
, GFP_KERNEL
);
4963 rates
= kzalloc((sizeof(struct ieee80211_rate
) * (IWL_RATE_COUNT
+ 1)),
4970 /* 5.2GHz channels start after the 2.4GHz channels */
4971 sband
= &priv
->bands
[IEEE80211_BAND_5GHZ
];
4972 sband
->channels
= &channels
[ARRAY_SIZE(iwl3945_eeprom_band_1
)];
4974 sband
->bitrates
= &rates
[IWL_FIRST_OFDM_RATE
];
4975 sband
->n_bitrates
= IWL_RATE_COUNT
- IWL_FIRST_OFDM_RATE
;
4977 sband
= &priv
->bands
[IEEE80211_BAND_2GHZ
];
4978 sband
->channels
= channels
;
4980 sband
->bitrates
= rates
;
4981 sband
->n_bitrates
= IWL_RATE_COUNT
;
4983 priv
->ieee_channels
= channels
;
4984 priv
->ieee_rates
= rates
;
4986 iwl3945_init_hw_rates(priv
, rates
);
4988 for (i
= 0; i
< priv
->channel_count
; i
++) {
4989 ch
= &priv
->channel_info
[i
];
4991 /* FIXME: might be removed if scan is OK*/
4992 if (!is_channel_valid(ch
))
4995 if (is_channel_a_band(ch
))
4996 sband
= &priv
->bands
[IEEE80211_BAND_5GHZ
];
4998 sband
= &priv
->bands
[IEEE80211_BAND_2GHZ
];
5000 geo_ch
= &sband
->channels
[sband
->n_channels
++];
5002 geo_ch
->center_freq
= ieee80211_channel_to_frequency(ch
->channel
);
5003 geo_ch
->max_power
= ch
->max_power_avg
;
5004 geo_ch
->max_antenna_gain
= 0xff;
5005 geo_ch
->hw_value
= ch
->channel
;
5007 if (is_channel_valid(ch
)) {
5008 if (!(ch
->flags
& EEPROM_CHANNEL_IBSS
))
5009 geo_ch
->flags
|= IEEE80211_CHAN_NO_IBSS
;
5011 if (!(ch
->flags
& EEPROM_CHANNEL_ACTIVE
))
5012 geo_ch
->flags
|= IEEE80211_CHAN_PASSIVE_SCAN
;
5014 if (ch
->flags
& EEPROM_CHANNEL_RADAR
)
5015 geo_ch
->flags
|= IEEE80211_CHAN_RADAR
;
5017 if (ch
->max_power_avg
> priv
->max_channel_txpower_limit
)
5018 priv
->max_channel_txpower_limit
=
5021 geo_ch
->flags
|= IEEE80211_CHAN_DISABLED
;
5024 /* Save flags for reg domain usage */
5025 geo_ch
->orig_flags
= geo_ch
->flags
;
5027 IWL_DEBUG_INFO("Channel %d Freq=%d[%sGHz] %s flag=0%X\n",
5028 ch
->channel
, geo_ch
->center_freq
,
5029 is_channel_a_band(ch
) ? "5.2" : "2.4",
5030 geo_ch
->flags
& IEEE80211_CHAN_DISABLED
?
5031 "restricted" : "valid",
5035 if ((priv
->bands
[IEEE80211_BAND_5GHZ
].n_channels
== 0) &&
5036 priv
->cfg
->sku
& IWL_SKU_A
) {
5037 printk(KERN_INFO DRV_NAME
5038 ": Incorrectly detected BG card as ABG. Please send "
5039 "your PCI ID 0x%04X:0x%04X to maintainer.\n",
5040 priv
->pci_dev
->device
, priv
->pci_dev
->subsystem_device
);
5041 priv
->cfg
->sku
&= ~IWL_SKU_A
;
5044 printk(KERN_INFO DRV_NAME
5045 ": Tunable channels: %d 802.11bg, %d 802.11a channels\n",
5046 priv
->bands
[IEEE80211_BAND_2GHZ
].n_channels
,
5047 priv
->bands
[IEEE80211_BAND_5GHZ
].n_channels
);
5049 if (priv
->bands
[IEEE80211_BAND_2GHZ
].n_channels
)
5050 priv
->hw
->wiphy
->bands
[IEEE80211_BAND_2GHZ
] =
5051 &priv
->bands
[IEEE80211_BAND_2GHZ
];
5052 if (priv
->bands
[IEEE80211_BAND_5GHZ
].n_channels
)
5053 priv
->hw
->wiphy
->bands
[IEEE80211_BAND_5GHZ
] =
5054 &priv
->bands
[IEEE80211_BAND_5GHZ
];
5056 set_bit(STATUS_GEO_CONFIGURED
, &priv
->status
);
5062 * iwl3945_free_geos - undo allocations in iwl3945_init_geos
5064 static void iwl3945_free_geos(struct iwl3945_priv
*priv
)
5066 kfree(priv
->ieee_channels
);
5067 kfree(priv
->ieee_rates
);
5068 clear_bit(STATUS_GEO_CONFIGURED
, &priv
->status
);
5071 /******************************************************************************
5073 * uCode download functions
5075 ******************************************************************************/
5077 static void iwl3945_dealloc_ucode_pci(struct iwl3945_priv
*priv
)
5079 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_code
);
5080 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_data
);
5081 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_data_backup
);
5082 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_init
);
5083 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_init_data
);
5084 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_boot
);
5088 * iwl3945_verify_inst_full - verify runtime uCode image in card vs. host,
5089 * looking at all data.
5091 static int iwl3945_verify_inst_full(struct iwl3945_priv
*priv
, __le32
* image
, u32 len
)
5098 IWL_DEBUG_INFO("ucode inst image size is %u\n", len
);
5100 rc
= iwl3945_grab_nic_access(priv
);
5104 iwl3945_write_direct32(priv
, HBUS_TARG_MEM_RADDR
, RTC_INST_LOWER_BOUND
);
5107 for (; len
> 0; len
-= sizeof(u32
), image
++) {
5108 /* read data comes through single port, auto-incr addr */
5109 /* NOTE: Use the debugless read so we don't flood kernel log
5110 * if IWL_DL_IO is set */
5111 val
= _iwl3945_read_direct32(priv
, HBUS_TARG_MEM_RDAT
);
5112 if (val
!= le32_to_cpu(*image
)) {
5113 IWL_ERROR("uCode INST section is invalid at "
5114 "offset 0x%x, is 0x%x, s/b 0x%x\n",
5115 save_len
- len
, val
, le32_to_cpu(*image
));
5123 iwl3945_release_nic_access(priv
);
5126 IWL_DEBUG_INFO("ucode image in INSTRUCTION memory is good\n");
5133 * iwl3945_verify_inst_sparse - verify runtime uCode image in card vs. host,
5134 * using sample data 100 bytes apart. If these sample points are good,
5135 * it's a pretty good bet that everything between them is good, too.
5137 static int iwl3945_verify_inst_sparse(struct iwl3945_priv
*priv
, __le32
*image
, u32 len
)
5144 IWL_DEBUG_INFO("ucode inst image size is %u\n", len
);
5146 rc
= iwl3945_grab_nic_access(priv
);
5150 for (i
= 0; i
< len
; i
+= 100, image
+= 100/sizeof(u32
)) {
5151 /* read data comes through single port, auto-incr addr */
5152 /* NOTE: Use the debugless read so we don't flood kernel log
5153 * if IWL_DL_IO is set */
5154 iwl3945_write_direct32(priv
, HBUS_TARG_MEM_RADDR
,
5155 i
+ RTC_INST_LOWER_BOUND
);
5156 val
= _iwl3945_read_direct32(priv
, HBUS_TARG_MEM_RDAT
);
5157 if (val
!= le32_to_cpu(*image
)) {
5158 #if 0 /* Enable this if you want to see details */
5159 IWL_ERROR("uCode INST section is invalid at "
5160 "offset 0x%x, is 0x%x, s/b 0x%x\n",
5170 iwl3945_release_nic_access(priv
);
5177 * iwl3945_verify_ucode - determine which instruction image is in SRAM,
5178 * and verify its contents
5180 static int iwl3945_verify_ucode(struct iwl3945_priv
*priv
)
5187 image
= (__le32
*)priv
->ucode_boot
.v_addr
;
5188 len
= priv
->ucode_boot
.len
;
5189 rc
= iwl3945_verify_inst_sparse(priv
, image
, len
);
5191 IWL_DEBUG_INFO("Bootstrap uCode is good in inst SRAM\n");
5195 /* Try initialize */
5196 image
= (__le32
*)priv
->ucode_init
.v_addr
;
5197 len
= priv
->ucode_init
.len
;
5198 rc
= iwl3945_verify_inst_sparse(priv
, image
, len
);
5200 IWL_DEBUG_INFO("Initialize uCode is good in inst SRAM\n");
5204 /* Try runtime/protocol */
5205 image
= (__le32
*)priv
->ucode_code
.v_addr
;
5206 len
= priv
->ucode_code
.len
;
5207 rc
= iwl3945_verify_inst_sparse(priv
, image
, len
);
5209 IWL_DEBUG_INFO("Runtime uCode is good in inst SRAM\n");
5213 IWL_ERROR("NO VALID UCODE IMAGE IN INSTRUCTION SRAM!!\n");
5215 /* Since nothing seems to match, show first several data entries in
5216 * instruction SRAM, so maybe visual inspection will give a clue.
5217 * Selection of bootstrap image (vs. other images) is arbitrary. */
5218 image
= (__le32
*)priv
->ucode_boot
.v_addr
;
5219 len
= priv
->ucode_boot
.len
;
5220 rc
= iwl3945_verify_inst_full(priv
, image
, len
);
5226 /* check contents of special bootstrap uCode SRAM */
5227 static int iwl3945_verify_bsm(struct iwl3945_priv
*priv
)
5229 __le32
*image
= priv
->ucode_boot
.v_addr
;
5230 u32 len
= priv
->ucode_boot
.len
;
5234 IWL_DEBUG_INFO("Begin verify bsm\n");
5236 /* verify BSM SRAM contents */
5237 val
= iwl3945_read_prph(priv
, BSM_WR_DWCOUNT_REG
);
5238 for (reg
= BSM_SRAM_LOWER_BOUND
;
5239 reg
< BSM_SRAM_LOWER_BOUND
+ len
;
5240 reg
+= sizeof(u32
), image
++) {
5241 val
= iwl3945_read_prph(priv
, reg
);
5242 if (val
!= le32_to_cpu(*image
)) {
5243 IWL_ERROR("BSM uCode verification failed at "
5244 "addr 0x%08X+%u (of %u), is 0x%x, s/b 0x%x\n",
5245 BSM_SRAM_LOWER_BOUND
,
5246 reg
- BSM_SRAM_LOWER_BOUND
, len
,
5247 val
, le32_to_cpu(*image
));
5252 IWL_DEBUG_INFO("BSM bootstrap uCode image OK\n");
5258 * iwl3945_load_bsm - Load bootstrap instructions
5262 * The Bootstrap State Machine (BSM) stores a short bootstrap uCode program
5263 * in special SRAM that does not power down during RFKILL. When powering back
5264 * up after power-saving sleeps (or during initial uCode load), the BSM loads
5265 * the bootstrap program into the on-board processor, and starts it.
5267 * The bootstrap program loads (via DMA) instructions and data for a new
5268 * program from host DRAM locations indicated by the host driver in the
5269 * BSM_DRAM_* registers. Once the new program is loaded, it starts
5272 * When initializing the NIC, the host driver points the BSM to the
5273 * "initialize" uCode image. This uCode sets up some internal data, then
5274 * notifies host via "initialize alive" that it is complete.
5276 * The host then replaces the BSM_DRAM_* pointer values to point to the
5277 * normal runtime uCode instructions and a backup uCode data cache buffer
5278 * (filled initially with starting data values for the on-board processor),
5279 * then triggers the "initialize" uCode to load and launch the runtime uCode,
5280 * which begins normal operation.
5282 * When doing a power-save shutdown, runtime uCode saves data SRAM into
5283 * the backup data cache in DRAM before SRAM is powered down.
5285 * When powering back up, the BSM loads the bootstrap program. This reloads
5286 * the runtime uCode instructions and the backup data cache into SRAM,
5287 * and re-launches the runtime uCode from where it left off.
5289 static int iwl3945_load_bsm(struct iwl3945_priv
*priv
)
5291 __le32
*image
= priv
->ucode_boot
.v_addr
;
5292 u32 len
= priv
->ucode_boot
.len
;
5302 IWL_DEBUG_INFO("Begin load bsm\n");
5304 /* make sure bootstrap program is no larger than BSM's SRAM size */
5305 if (len
> IWL_MAX_BSM_SIZE
)
5308 /* Tell bootstrap uCode where to find the "Initialize" uCode
5309 * in host DRAM ... host DRAM physical address bits 31:0 for 3945.
5310 * NOTE: iwl3945_initialize_alive_start() will replace these values,
5311 * after the "initialize" uCode has run, to point to
5312 * runtime/protocol instructions and backup data cache. */
5313 pinst
= priv
->ucode_init
.p_addr
;
5314 pdata
= priv
->ucode_init_data
.p_addr
;
5315 inst_len
= priv
->ucode_init
.len
;
5316 data_len
= priv
->ucode_init_data
.len
;
5318 rc
= iwl3945_grab_nic_access(priv
);
5322 iwl3945_write_prph(priv
, BSM_DRAM_INST_PTR_REG
, pinst
);
5323 iwl3945_write_prph(priv
, BSM_DRAM_DATA_PTR_REG
, pdata
);
5324 iwl3945_write_prph(priv
, BSM_DRAM_INST_BYTECOUNT_REG
, inst_len
);
5325 iwl3945_write_prph(priv
, BSM_DRAM_DATA_BYTECOUNT_REG
, data_len
);
5327 /* Fill BSM memory with bootstrap instructions */
5328 for (reg_offset
= BSM_SRAM_LOWER_BOUND
;
5329 reg_offset
< BSM_SRAM_LOWER_BOUND
+ len
;
5330 reg_offset
+= sizeof(u32
), image
++)
5331 _iwl3945_write_prph(priv
, reg_offset
,
5332 le32_to_cpu(*image
));
5334 rc
= iwl3945_verify_bsm(priv
);
5336 iwl3945_release_nic_access(priv
);
5340 /* Tell BSM to copy from BSM SRAM into instruction SRAM, when asked */
5341 iwl3945_write_prph(priv
, BSM_WR_MEM_SRC_REG
, 0x0);
5342 iwl3945_write_prph(priv
, BSM_WR_MEM_DST_REG
,
5343 RTC_INST_LOWER_BOUND
);
5344 iwl3945_write_prph(priv
, BSM_WR_DWCOUNT_REG
, len
/ sizeof(u32
));
5346 /* Load bootstrap code into instruction SRAM now,
5347 * to prepare to load "initialize" uCode */
5348 iwl3945_write_prph(priv
, BSM_WR_CTRL_REG
,
5349 BSM_WR_CTRL_REG_BIT_START
);
5351 /* Wait for load of bootstrap uCode to finish */
5352 for (i
= 0; i
< 100; i
++) {
5353 done
= iwl3945_read_prph(priv
, BSM_WR_CTRL_REG
);
5354 if (!(done
& BSM_WR_CTRL_REG_BIT_START
))
5359 IWL_DEBUG_INFO("BSM write complete, poll %d iterations\n", i
);
5361 IWL_ERROR("BSM write did not complete!\n");
5365 /* Enable future boot loads whenever power management unit triggers it
5366 * (e.g. when powering back up after power-save shutdown) */
5367 iwl3945_write_prph(priv
, BSM_WR_CTRL_REG
,
5368 BSM_WR_CTRL_REG_BIT_START_EN
);
5370 iwl3945_release_nic_access(priv
);
5375 static void iwl3945_nic_start(struct iwl3945_priv
*priv
)
5377 /* Remove all resets to allow NIC to operate */
5378 iwl3945_write32(priv
, CSR_RESET
, 0);
5382 * iwl3945_read_ucode - Read uCode images from disk file.
5384 * Copy into buffers for card to fetch via bus-mastering
5386 static int iwl3945_read_ucode(struct iwl3945_priv
*priv
)
5388 struct iwl3945_ucode
*ucode
;
5390 const struct firmware
*ucode_raw
;
5391 /* firmware file name contains uCode/driver compatibility version */
5392 const char *name
= priv
->cfg
->fw_name
;
5395 u32 ver
, inst_size
, data_size
, init_size
, init_data_size
, boot_size
;
5397 /* Ask kernel firmware_class module to get the boot firmware off disk.
5398 * request_firmware() is synchronous, file is in memory on return. */
5399 ret
= request_firmware(&ucode_raw
, name
, &priv
->pci_dev
->dev
);
5401 IWL_ERROR("%s firmware file req failed: Reason %d\n",
5406 IWL_DEBUG_INFO("Got firmware '%s' file (%zd bytes) from disk\n",
5407 name
, ucode_raw
->size
);
5409 /* Make sure that we got at least our header! */
5410 if (ucode_raw
->size
< sizeof(*ucode
)) {
5411 IWL_ERROR("File size way too small!\n");
5416 /* Data from ucode file: header followed by uCode images */
5417 ucode
= (void *)ucode_raw
->data
;
5419 ver
= le32_to_cpu(ucode
->ver
);
5420 inst_size
= le32_to_cpu(ucode
->inst_size
);
5421 data_size
= le32_to_cpu(ucode
->data_size
);
5422 init_size
= le32_to_cpu(ucode
->init_size
);
5423 init_data_size
= le32_to_cpu(ucode
->init_data_size
);
5424 boot_size
= le32_to_cpu(ucode
->boot_size
);
5426 IWL_DEBUG_INFO("f/w package hdr ucode version = 0x%x\n", ver
);
5427 IWL_DEBUG_INFO("f/w package hdr runtime inst size = %u\n", inst_size
);
5428 IWL_DEBUG_INFO("f/w package hdr runtime data size = %u\n", data_size
);
5429 IWL_DEBUG_INFO("f/w package hdr init inst size = %u\n", init_size
);
5430 IWL_DEBUG_INFO("f/w package hdr init data size = %u\n", init_data_size
);
5431 IWL_DEBUG_INFO("f/w package hdr boot inst size = %u\n", boot_size
);
5433 /* Verify size of file vs. image size info in file's header */
5434 if (ucode_raw
->size
< sizeof(*ucode
) +
5435 inst_size
+ data_size
+ init_size
+
5436 init_data_size
+ boot_size
) {
5438 IWL_DEBUG_INFO("uCode file size %d too small\n",
5439 (int)ucode_raw
->size
);
5444 /* Verify that uCode images will fit in card's SRAM */
5445 if (inst_size
> IWL_MAX_INST_SIZE
) {
5446 IWL_DEBUG_INFO("uCode instr len %d too large to fit in\n",
5452 if (data_size
> IWL_MAX_DATA_SIZE
) {
5453 IWL_DEBUG_INFO("uCode data len %d too large to fit in\n",
5458 if (init_size
> IWL_MAX_INST_SIZE
) {
5459 IWL_DEBUG_INFO("uCode init instr len %d too large to fit in\n",
5464 if (init_data_size
> IWL_MAX_DATA_SIZE
) {
5465 IWL_DEBUG_INFO("uCode init data len %d too large to fit in\n",
5470 if (boot_size
> IWL_MAX_BSM_SIZE
) {
5471 IWL_DEBUG_INFO("uCode boot instr len %d too large to fit in\n",
5477 /* Allocate ucode buffers for card's bus-master loading ... */
5479 /* Runtime instructions and 2 copies of data:
5480 * 1) unmodified from disk
5481 * 2) backup cache for save/restore during power-downs */
5482 priv
->ucode_code
.len
= inst_size
;
5483 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_code
);
5485 priv
->ucode_data
.len
= data_size
;
5486 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_data
);
5488 priv
->ucode_data_backup
.len
= data_size
;
5489 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_data_backup
);
5491 if (!priv
->ucode_code
.v_addr
|| !priv
->ucode_data
.v_addr
||
5492 !priv
->ucode_data_backup
.v_addr
)
5495 /* Initialization instructions and data */
5496 if (init_size
&& init_data_size
) {
5497 priv
->ucode_init
.len
= init_size
;
5498 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_init
);
5500 priv
->ucode_init_data
.len
= init_data_size
;
5501 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_init_data
);
5503 if (!priv
->ucode_init
.v_addr
|| !priv
->ucode_init_data
.v_addr
)
5507 /* Bootstrap (instructions only, no data) */
5509 priv
->ucode_boot
.len
= boot_size
;
5510 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_boot
);
5512 if (!priv
->ucode_boot
.v_addr
)
5516 /* Copy images into buffers for card's bus-master reads ... */
5518 /* Runtime instructions (first block of data in file) */
5519 src
= &ucode
->data
[0];
5520 len
= priv
->ucode_code
.len
;
5521 IWL_DEBUG_INFO("Copying (but not loading) uCode instr len %Zd\n", len
);
5522 memcpy(priv
->ucode_code
.v_addr
, src
, len
);
5523 IWL_DEBUG_INFO("uCode instr buf vaddr = 0x%p, paddr = 0x%08x\n",
5524 priv
->ucode_code
.v_addr
, (u32
)priv
->ucode_code
.p_addr
);
5526 /* Runtime data (2nd block)
5527 * NOTE: Copy into backup buffer will be done in iwl3945_up() */
5528 src
= &ucode
->data
[inst_size
];
5529 len
= priv
->ucode_data
.len
;
5530 IWL_DEBUG_INFO("Copying (but not loading) uCode data len %Zd\n", len
);
5531 memcpy(priv
->ucode_data
.v_addr
, src
, len
);
5532 memcpy(priv
->ucode_data_backup
.v_addr
, src
, len
);
5534 /* Initialization instructions (3rd block) */
5536 src
= &ucode
->data
[inst_size
+ data_size
];
5537 len
= priv
->ucode_init
.len
;
5538 IWL_DEBUG_INFO("Copying (but not loading) init instr len %Zd\n",
5540 memcpy(priv
->ucode_init
.v_addr
, src
, len
);
5543 /* Initialization data (4th block) */
5544 if (init_data_size
) {
5545 src
= &ucode
->data
[inst_size
+ data_size
+ init_size
];
5546 len
= priv
->ucode_init_data
.len
;
5547 IWL_DEBUG_INFO("Copying (but not loading) init data len %d\n",
5549 memcpy(priv
->ucode_init_data
.v_addr
, src
, len
);
5552 /* Bootstrap instructions (5th block) */
5553 src
= &ucode
->data
[inst_size
+ data_size
+ init_size
+ init_data_size
];
5554 len
= priv
->ucode_boot
.len
;
5555 IWL_DEBUG_INFO("Copying (but not loading) boot instr len %d\n",
5557 memcpy(priv
->ucode_boot
.v_addr
, src
, len
);
5559 /* We have our copies now, allow OS release its copies */
5560 release_firmware(ucode_raw
);
5564 IWL_ERROR("failed to allocate pci memory\n");
5566 iwl3945_dealloc_ucode_pci(priv
);
5569 release_firmware(ucode_raw
);
5577 * iwl3945_set_ucode_ptrs - Set uCode address location
5579 * Tell initialization uCode where to find runtime uCode.
5581 * BSM registers initially contain pointers to initialization uCode.
5582 * We need to replace them to load runtime uCode inst and data,
5583 * and to save runtime data when powering down.
5585 static int iwl3945_set_ucode_ptrs(struct iwl3945_priv
*priv
)
5590 unsigned long flags
;
5592 /* bits 31:0 for 3945 */
5593 pinst
= priv
->ucode_code
.p_addr
;
5594 pdata
= priv
->ucode_data_backup
.p_addr
;
5596 spin_lock_irqsave(&priv
->lock
, flags
);
5597 rc
= iwl3945_grab_nic_access(priv
);
5599 spin_unlock_irqrestore(&priv
->lock
, flags
);
5603 /* Tell bootstrap uCode where to find image to load */
5604 iwl3945_write_prph(priv
, BSM_DRAM_INST_PTR_REG
, pinst
);
5605 iwl3945_write_prph(priv
, BSM_DRAM_DATA_PTR_REG
, pdata
);
5606 iwl3945_write_prph(priv
, BSM_DRAM_DATA_BYTECOUNT_REG
,
5607 priv
->ucode_data
.len
);
5609 /* Inst bytecount must be last to set up, bit 31 signals uCode
5610 * that all new ptr/size info is in place */
5611 iwl3945_write_prph(priv
, BSM_DRAM_INST_BYTECOUNT_REG
,
5612 priv
->ucode_code
.len
| BSM_DRAM_INST_LOAD
);
5614 iwl3945_release_nic_access(priv
);
5616 spin_unlock_irqrestore(&priv
->lock
, flags
);
5618 IWL_DEBUG_INFO("Runtime uCode pointers are set.\n");
5624 * iwl3945_init_alive_start - Called after REPLY_ALIVE notification received
5626 * Called after REPLY_ALIVE notification received from "initialize" uCode.
5628 * Tell "initialize" uCode to go ahead and load the runtime uCode.
5630 static void iwl3945_init_alive_start(struct iwl3945_priv
*priv
)
5632 /* Check alive response for "valid" sign from uCode */
5633 if (priv
->card_alive_init
.is_valid
!= UCODE_VALID_OK
) {
5634 /* We had an error bringing up the hardware, so take it
5635 * all the way back down so we can try again */
5636 IWL_DEBUG_INFO("Initialize Alive failed.\n");
5640 /* Bootstrap uCode has loaded initialize uCode ... verify inst image.
5641 * This is a paranoid check, because we would not have gotten the
5642 * "initialize" alive if code weren't properly loaded. */
5643 if (iwl3945_verify_ucode(priv
)) {
5644 /* Runtime instruction load was bad;
5645 * take it all the way back down so we can try again */
5646 IWL_DEBUG_INFO("Bad \"initialize\" uCode load.\n");
5650 /* Send pointers to protocol/runtime uCode image ... init code will
5651 * load and launch runtime uCode, which will send us another "Alive"
5653 IWL_DEBUG_INFO("Initialization Alive received.\n");
5654 if (iwl3945_set_ucode_ptrs(priv
)) {
5655 /* Runtime instruction load won't happen;
5656 * take it all the way back down so we can try again */
5657 IWL_DEBUG_INFO("Couldn't set up uCode pointers.\n");
5663 queue_work(priv
->workqueue
, &priv
->restart
);
5668 * iwl3945_alive_start - called after REPLY_ALIVE notification received
5669 * from protocol/runtime uCode (initialization uCode's
5670 * Alive gets handled by iwl3945_init_alive_start()).
5672 static void iwl3945_alive_start(struct iwl3945_priv
*priv
)
5675 int thermal_spin
= 0;
5678 IWL_DEBUG_INFO("Runtime Alive received.\n");
5680 if (priv
->card_alive
.is_valid
!= UCODE_VALID_OK
) {
5681 /* We had an error bringing up the hardware, so take it
5682 * all the way back down so we can try again */
5683 IWL_DEBUG_INFO("Alive failed.\n");
5687 /* Initialize uCode has loaded Runtime uCode ... verify inst image.
5688 * This is a paranoid check, because we would not have gotten the
5689 * "runtime" alive if code weren't properly loaded. */
5690 if (iwl3945_verify_ucode(priv
)) {
5691 /* Runtime instruction load was bad;
5692 * take it all the way back down so we can try again */
5693 IWL_DEBUG_INFO("Bad runtime uCode load.\n");
5697 iwl3945_clear_stations_table(priv
);
5699 rc
= iwl3945_grab_nic_access(priv
);
5701 IWL_WARNING("Can not read rfkill status from adapter\n");
5705 rfkill
= iwl3945_read_prph(priv
, APMG_RFKILL_REG
);
5706 IWL_DEBUG_INFO("RFKILL status: 0x%x\n", rfkill
);
5707 iwl3945_release_nic_access(priv
);
5710 clear_bit(STATUS_RF_KILL_HW
, &priv
->status
);
5711 /* if rfkill is not on, then wait for thermal
5712 * sensor in adapter to kick in */
5713 while (iwl3945_hw_get_temperature(priv
) == 0) {
5719 IWL_DEBUG_INFO("Thermal calibration took %dus\n",
5722 set_bit(STATUS_RF_KILL_HW
, &priv
->status
);
5724 /* After the ALIVE response, we can send commands to 3945 uCode */
5725 set_bit(STATUS_ALIVE
, &priv
->status
);
5727 /* Clear out the uCode error bit if it is set */
5728 clear_bit(STATUS_FW_ERROR
, &priv
->status
);
5730 if (iwl3945_is_rfkill(priv
))
5733 ieee80211_wake_queues(priv
->hw
);
5735 priv
->active_rate
= priv
->rates_mask
;
5736 priv
->active_rate_basic
= priv
->rates_mask
& IWL_BASIC_RATES_MASK
;
5738 iwl3945_send_power_mode(priv
, IWL_POWER_LEVEL(priv
->power_mode
));
5740 if (iwl3945_is_associated(priv
)) {
5741 struct iwl3945_rxon_cmd
*active_rxon
=
5742 (struct iwl3945_rxon_cmd
*)(&priv
->active_rxon
);
5744 memcpy(&priv
->staging_rxon
, &priv
->active_rxon
,
5745 sizeof(priv
->staging_rxon
));
5746 active_rxon
->filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
5748 /* Initialize our rx_config data */
5749 iwl3945_connection_init_rx_config(priv
);
5750 memcpy(priv
->staging_rxon
.node_addr
, priv
->mac_addr
, ETH_ALEN
);
5753 /* Configure Bluetooth device coexistence support */
5754 iwl3945_send_bt_config(priv
);
5756 /* Configure the adapter for unassociated operation */
5757 iwl3945_commit_rxon(priv
);
5759 iwl3945_reg_txpower_periodic(priv
);
5761 iwl3945_led_register(priv
);
5763 IWL_DEBUG_INFO("ALIVE processing complete.\n");
5764 set_bit(STATUS_READY
, &priv
->status
);
5765 wake_up_interruptible(&priv
->wait_command_queue
);
5767 if (priv
->error_recovering
)
5768 iwl3945_error_recovery(priv
);
5770 ieee80211_notify_mac(priv
->hw
, IEEE80211_NOTIFY_RE_ASSOC
);
5774 queue_work(priv
->workqueue
, &priv
->restart
);
5777 static void iwl3945_cancel_deferred_work(struct iwl3945_priv
*priv
);
5779 static void __iwl3945_down(struct iwl3945_priv
*priv
)
5781 unsigned long flags
;
5782 int exit_pending
= test_bit(STATUS_EXIT_PENDING
, &priv
->status
);
5783 struct ieee80211_conf
*conf
= NULL
;
5785 IWL_DEBUG_INFO(DRV_NAME
" is going down\n");
5787 conf
= ieee80211_get_hw_conf(priv
->hw
);
5790 set_bit(STATUS_EXIT_PENDING
, &priv
->status
);
5792 iwl3945_led_unregister(priv
);
5793 iwl3945_clear_stations_table(priv
);
5795 /* Unblock any waiting calls */
5796 wake_up_interruptible_all(&priv
->wait_command_queue
);
5798 /* Wipe out the EXIT_PENDING status bit if we are not actually
5799 * exiting the module */
5801 clear_bit(STATUS_EXIT_PENDING
, &priv
->status
);
5803 /* stop and reset the on-board processor */
5804 iwl3945_write32(priv
, CSR_RESET
, CSR_RESET_REG_FLAG_NEVO_RESET
);
5806 /* tell the device to stop sending interrupts */
5807 spin_lock_irqsave(&priv
->lock
, flags
);
5808 iwl3945_disable_interrupts(priv
);
5809 spin_unlock_irqrestore(&priv
->lock
, flags
);
5810 iwl_synchronize_irq(priv
);
5812 if (priv
->mac80211_registered
)
5813 ieee80211_stop_queues(priv
->hw
);
5815 /* If we have not previously called iwl3945_init() then
5816 * clear all bits but the RF Kill and SUSPEND bits and return */
5817 if (!iwl3945_is_init(priv
)) {
5818 priv
->status
= test_bit(STATUS_RF_KILL_HW
, &priv
->status
) <<
5820 test_bit(STATUS_RF_KILL_SW
, &priv
->status
) <<
5822 test_bit(STATUS_GEO_CONFIGURED
, &priv
->status
) <<
5823 STATUS_GEO_CONFIGURED
|
5824 test_bit(STATUS_IN_SUSPEND
, &priv
->status
) <<
5826 test_bit(STATUS_EXIT_PENDING
, &priv
->status
) <<
5827 STATUS_EXIT_PENDING
;
5831 /* ...otherwise clear out all the status bits but the RF Kill and
5832 * SUSPEND bits and continue taking the NIC down. */
5833 priv
->status
&= test_bit(STATUS_RF_KILL_HW
, &priv
->status
) <<
5835 test_bit(STATUS_RF_KILL_SW
, &priv
->status
) <<
5837 test_bit(STATUS_GEO_CONFIGURED
, &priv
->status
) <<
5838 STATUS_GEO_CONFIGURED
|
5839 test_bit(STATUS_IN_SUSPEND
, &priv
->status
) <<
5841 test_bit(STATUS_FW_ERROR
, &priv
->status
) <<
5843 test_bit(STATUS_EXIT_PENDING
, &priv
->status
) <<
5844 STATUS_EXIT_PENDING
;
5846 spin_lock_irqsave(&priv
->lock
, flags
);
5847 iwl3945_clear_bit(priv
, CSR_GP_CNTRL
, CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ
);
5848 spin_unlock_irqrestore(&priv
->lock
, flags
);
5850 iwl3945_hw_txq_ctx_stop(priv
);
5851 iwl3945_hw_rxq_stop(priv
);
5853 spin_lock_irqsave(&priv
->lock
, flags
);
5854 if (!iwl3945_grab_nic_access(priv
)) {
5855 iwl3945_write_prph(priv
, APMG_CLK_DIS_REG
,
5856 APMG_CLK_VAL_DMA_CLK_RQT
);
5857 iwl3945_release_nic_access(priv
);
5859 spin_unlock_irqrestore(&priv
->lock
, flags
);
5863 iwl3945_hw_nic_stop_master(priv
);
5864 iwl3945_set_bit(priv
, CSR_RESET
, CSR_RESET_REG_FLAG_SW_RESET
);
5865 iwl3945_hw_nic_reset(priv
);
5868 memset(&priv
->card_alive
, 0, sizeof(struct iwl3945_alive_resp
));
5870 if (priv
->ibss_beacon
)
5871 dev_kfree_skb(priv
->ibss_beacon
);
5872 priv
->ibss_beacon
= NULL
;
5874 /* clear out any free frames */
5875 iwl3945_clear_free_frames(priv
);
5878 static void iwl3945_down(struct iwl3945_priv
*priv
)
5880 mutex_lock(&priv
->mutex
);
5881 __iwl3945_down(priv
);
5882 mutex_unlock(&priv
->mutex
);
5884 iwl3945_cancel_deferred_work(priv
);
5887 #define MAX_HW_RESTARTS 5
5889 static int __iwl3945_up(struct iwl3945_priv
*priv
)
5893 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
)) {
5894 IWL_WARNING("Exit pending; will not bring the NIC up\n");
5898 if (test_bit(STATUS_RF_KILL_SW
, &priv
->status
)) {
5899 IWL_WARNING("Radio disabled by SW RF kill (module "
5904 if (!priv
->ucode_data_backup
.v_addr
|| !priv
->ucode_data
.v_addr
) {
5905 IWL_ERROR("ucode not available for device bringup\n");
5909 /* If platform's RF_KILL switch is NOT set to KILL */
5910 if (iwl3945_read32(priv
, CSR_GP_CNTRL
) &
5911 CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW
)
5912 clear_bit(STATUS_RF_KILL_HW
, &priv
->status
);
5914 set_bit(STATUS_RF_KILL_HW
, &priv
->status
);
5915 if (!test_bit(STATUS_IN_SUSPEND
, &priv
->status
)) {
5916 IWL_WARNING("Radio disabled by HW RF Kill switch\n");
5921 iwl3945_write32(priv
, CSR_INT
, 0xFFFFFFFF);
5923 rc
= iwl3945_hw_nic_init(priv
);
5925 IWL_ERROR("Unable to int nic\n");
5929 /* make sure rfkill handshake bits are cleared */
5930 iwl3945_write32(priv
, CSR_UCODE_DRV_GP1_CLR
, CSR_UCODE_SW_BIT_RFKILL
);
5931 iwl3945_write32(priv
, CSR_UCODE_DRV_GP1_CLR
,
5932 CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED
);
5934 /* clear (again), then enable host interrupts */
5935 iwl3945_write32(priv
, CSR_INT
, 0xFFFFFFFF);
5936 iwl3945_enable_interrupts(priv
);
5938 /* really make sure rfkill handshake bits are cleared */
5939 iwl3945_write32(priv
, CSR_UCODE_DRV_GP1_CLR
, CSR_UCODE_SW_BIT_RFKILL
);
5940 iwl3945_write32(priv
, CSR_UCODE_DRV_GP1_CLR
, CSR_UCODE_SW_BIT_RFKILL
);
5942 /* Copy original ucode data image from disk into backup cache.
5943 * This will be used to initialize the on-board processor's
5944 * data SRAM for a clean start when the runtime program first loads. */
5945 memcpy(priv
->ucode_data_backup
.v_addr
, priv
->ucode_data
.v_addr
,
5946 priv
->ucode_data
.len
);
5948 /* We return success when we resume from suspend and rf_kill is on. */
5949 if (test_bit(STATUS_RF_KILL_HW
, &priv
->status
))
5952 for (i
= 0; i
< MAX_HW_RESTARTS
; i
++) {
5954 iwl3945_clear_stations_table(priv
);
5956 /* load bootstrap state machine,
5957 * load bootstrap program into processor's memory,
5958 * prepare to load the "initialize" uCode */
5959 rc
= iwl3945_load_bsm(priv
);
5962 IWL_ERROR("Unable to set up bootstrap uCode: %d\n", rc
);
5966 /* start card; "initialize" will load runtime ucode */
5967 iwl3945_nic_start(priv
);
5969 IWL_DEBUG_INFO(DRV_NAME
" is coming up\n");
5974 set_bit(STATUS_EXIT_PENDING
, &priv
->status
);
5975 __iwl3945_down(priv
);
5976 clear_bit(STATUS_EXIT_PENDING
, &priv
->status
);
5978 /* tried to restart and config the device for as long as our
5979 * patience could withstand */
5980 IWL_ERROR("Unable to initialize device after %d attempts.\n", i
);
5985 /*****************************************************************************
5987 * Workqueue callbacks
5989 *****************************************************************************/
5991 static void iwl3945_bg_init_alive_start(struct work_struct
*data
)
5993 struct iwl3945_priv
*priv
=
5994 container_of(data
, struct iwl3945_priv
, init_alive_start
.work
);
5996 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
5999 mutex_lock(&priv
->mutex
);
6000 iwl3945_init_alive_start(priv
);
6001 mutex_unlock(&priv
->mutex
);
6004 static void iwl3945_bg_alive_start(struct work_struct
*data
)
6006 struct iwl3945_priv
*priv
=
6007 container_of(data
, struct iwl3945_priv
, alive_start
.work
);
6009 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6012 mutex_lock(&priv
->mutex
);
6013 iwl3945_alive_start(priv
);
6014 mutex_unlock(&priv
->mutex
);
6017 static void iwl3945_bg_rf_kill(struct work_struct
*work
)
6019 struct iwl3945_priv
*priv
= container_of(work
, struct iwl3945_priv
, rf_kill
);
6021 wake_up_interruptible(&priv
->wait_command_queue
);
6023 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6026 mutex_lock(&priv
->mutex
);
6028 if (!iwl3945_is_rfkill(priv
)) {
6029 IWL_DEBUG(IWL_DL_INFO
| IWL_DL_RF_KILL
,
6030 "HW and/or SW RF Kill no longer active, restarting "
6032 if (!test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6033 queue_work(priv
->workqueue
, &priv
->restart
);
6036 if (!test_bit(STATUS_RF_KILL_HW
, &priv
->status
))
6037 IWL_DEBUG_RF_KILL("Can not turn radio back on - "
6038 "disabled by SW switch\n");
6040 IWL_WARNING("Radio Frequency Kill Switch is On:\n"
6041 "Kill switch must be turned off for "
6042 "wireless networking to work.\n");
6045 mutex_unlock(&priv
->mutex
);
6046 iwl3945_rfkill_set_hw_state(priv
);
6049 static void iwl3945_bg_set_monitor(struct work_struct
*work
)
6051 struct iwl3945_priv
*priv
= container_of(work
,
6052 struct iwl3945_priv
, set_monitor
);
6054 IWL_DEBUG(IWL_DL_STATE
, "setting monitor mode\n");
6056 mutex_lock(&priv
->mutex
);
6058 if (!iwl3945_is_ready(priv
))
6059 IWL_DEBUG(IWL_DL_STATE
, "leave - not ready\n");
6061 if (iwl3945_set_mode(priv
, IEEE80211_IF_TYPE_MNTR
) != 0)
6062 IWL_ERROR("iwl3945_set_mode() failed\n");
6064 mutex_unlock(&priv
->mutex
);
6067 #define IWL_SCAN_CHECK_WATCHDOG (7 * HZ)
6069 static void iwl3945_bg_scan_check(struct work_struct
*data
)
6071 struct iwl3945_priv
*priv
=
6072 container_of(data
, struct iwl3945_priv
, scan_check
.work
);
6074 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6077 mutex_lock(&priv
->mutex
);
6078 if (test_bit(STATUS_SCANNING
, &priv
->status
) ||
6079 test_bit(STATUS_SCAN_ABORTING
, &priv
->status
)) {
6080 IWL_DEBUG(IWL_DL_INFO
| IWL_DL_SCAN
,
6081 "Scan completion watchdog resetting adapter (%dms)\n",
6082 jiffies_to_msecs(IWL_SCAN_CHECK_WATCHDOG
));
6084 if (!test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6085 iwl3945_send_scan_abort(priv
);
6087 mutex_unlock(&priv
->mutex
);
6090 static void iwl3945_bg_request_scan(struct work_struct
*data
)
6092 struct iwl3945_priv
*priv
=
6093 container_of(data
, struct iwl3945_priv
, request_scan
);
6094 struct iwl3945_host_cmd cmd
= {
6095 .id
= REPLY_SCAN_CMD
,
6096 .len
= sizeof(struct iwl3945_scan_cmd
),
6097 .meta
.flags
= CMD_SIZE_HUGE
,
6100 struct iwl3945_scan_cmd
*scan
;
6101 struct ieee80211_conf
*conf
= NULL
;
6103 enum ieee80211_band band
;
6105 conf
= ieee80211_get_hw_conf(priv
->hw
);
6107 mutex_lock(&priv
->mutex
);
6109 if (!iwl3945_is_ready(priv
)) {
6110 IWL_WARNING("request scan called when driver not ready.\n");
6114 /* Make sure the scan wasn't cancelled before this queued work
6115 * was given the chance to run... */
6116 if (!test_bit(STATUS_SCANNING
, &priv
->status
))
6119 /* This should never be called or scheduled if there is currently
6120 * a scan active in the hardware. */
6121 if (test_bit(STATUS_SCAN_HW
, &priv
->status
)) {
6122 IWL_DEBUG_INFO("Multiple concurrent scan requests in parallel. "
6123 "Ignoring second request.\n");
6128 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
)) {
6129 IWL_DEBUG_SCAN("Aborting scan due to device shutdown\n");
6133 if (test_bit(STATUS_SCAN_ABORTING
, &priv
->status
)) {
6134 IWL_DEBUG_HC("Scan request while abort pending. Queuing.\n");
6138 if (iwl3945_is_rfkill(priv
)) {
6139 IWL_DEBUG_HC("Aborting scan due to RF Kill activation\n");
6143 if (!test_bit(STATUS_READY
, &priv
->status
)) {
6144 IWL_DEBUG_HC("Scan request while uninitialized. Queuing.\n");
6148 if (!priv
->scan_bands
) {
6149 IWL_DEBUG_HC("Aborting scan due to no requested bands\n");
6154 priv
->scan
= kmalloc(sizeof(struct iwl3945_scan_cmd
) +
6155 IWL_MAX_SCAN_SIZE
, GFP_KERNEL
);
6162 memset(scan
, 0, sizeof(struct iwl3945_scan_cmd
) + IWL_MAX_SCAN_SIZE
);
6164 scan
->quiet_plcp_th
= IWL_PLCP_QUIET_THRESH
;
6165 scan
->quiet_time
= IWL_ACTIVE_QUIET_TIME
;
6167 if (iwl3945_is_associated(priv
)) {
6170 u32 suspend_time
= 100;
6171 u32 scan_suspend_time
= 100;
6172 unsigned long flags
;
6174 IWL_DEBUG_INFO("Scanning while associated...\n");
6176 spin_lock_irqsave(&priv
->lock
, flags
);
6177 interval
= priv
->beacon_int
;
6178 spin_unlock_irqrestore(&priv
->lock
, flags
);
6180 scan
->suspend_time
= 0;
6181 scan
->max_out_time
= cpu_to_le32(200 * 1024);
6183 interval
= suspend_time
;
6185 * suspend time format:
6186 * 0-19: beacon interval in usec (time before exec.)
6188 * 24-31: number of beacons (suspend between channels)
6191 extra
= (suspend_time
/ interval
) << 24;
6192 scan_suspend_time
= 0xFF0FFFFF &
6193 (extra
| ((suspend_time
% interval
) * 1024));
6195 scan
->suspend_time
= cpu_to_le32(scan_suspend_time
);
6196 IWL_DEBUG_SCAN("suspend_time 0x%X beacon interval %d\n",
6197 scan_suspend_time
, interval
);
6200 /* We should add the ability for user to lock to PASSIVE ONLY */
6201 if (priv
->one_direct_scan
) {
6203 ("Kicking off one direct scan for '%s'\n",
6204 iwl3945_escape_essid(priv
->direct_ssid
,
6205 priv
->direct_ssid_len
));
6206 scan
->direct_scan
[0].id
= WLAN_EID_SSID
;
6207 scan
->direct_scan
[0].len
= priv
->direct_ssid_len
;
6208 memcpy(scan
->direct_scan
[0].ssid
,
6209 priv
->direct_ssid
, priv
->direct_ssid_len
);
6211 } else if (!iwl3945_is_associated(priv
) && priv
->essid_len
) {
6213 ("Kicking off one direct scan for '%s' when not associated\n",
6214 iwl3945_escape_essid(priv
->essid
, priv
->essid_len
));
6215 scan
->direct_scan
[0].id
= WLAN_EID_SSID
;
6216 scan
->direct_scan
[0].len
= priv
->essid_len
;
6217 memcpy(scan
->direct_scan
[0].ssid
, priv
->essid
, priv
->essid_len
);
6220 IWL_DEBUG_SCAN("Kicking off one indirect scan.\n");
6224 /* We don't build a direct scan probe request; the uCode will do
6225 * that based on the direct_mask added to each channel entry */
6226 scan
->tx_cmd
.len
= cpu_to_le16(
6227 iwl3945_fill_probe_req(priv
, (struct ieee80211_mgmt
*)scan
->data
,
6228 IWL_MAX_SCAN_SIZE
- sizeof(*scan
), 0));
6229 scan
->tx_cmd
.tx_flags
= TX_CMD_FLG_SEQ_CTL_MSK
;
6230 scan
->tx_cmd
.sta_id
= priv
->hw_setting
.bcast_sta_id
;
6231 scan
->tx_cmd
.stop_time
.life_time
= TX_CMD_LIFE_TIME_INFINITE
;
6233 /* flags + rate selection */
6235 if (priv
->scan_bands
& BIT(IEEE80211_BAND_2GHZ
)) {
6236 scan
->flags
= RXON_FLG_BAND_24G_MSK
| RXON_FLG_AUTO_DETECT_MSK
;
6237 scan
->tx_cmd
.rate
= IWL_RATE_1M_PLCP
;
6238 scan
->good_CRC_th
= 0;
6239 band
= IEEE80211_BAND_2GHZ
;
6240 } else if (priv
->scan_bands
& BIT(IEEE80211_BAND_5GHZ
)) {
6241 scan
->tx_cmd
.rate
= IWL_RATE_6M_PLCP
;
6242 scan
->good_CRC_th
= IWL_GOOD_CRC_TH
;
6243 band
= IEEE80211_BAND_5GHZ
;
6245 IWL_WARNING("Invalid scan band count\n");
6249 /* select Rx antennas */
6250 scan
->flags
|= iwl3945_get_antenna_flags(priv
);
6252 if (priv
->iw_mode
== IEEE80211_IF_TYPE_MNTR
)
6253 scan
->filter_flags
= RXON_FILTER_PROMISC_MSK
;
6256 scan
->channel_count
=
6257 iwl3945_get_channels_for_scan(
6258 priv
, band
, 1, /* active */
6260 (void *)&scan
->data
[le16_to_cpu(scan
->tx_cmd
.len
)]);
6262 scan
->channel_count
=
6263 iwl3945_get_channels_for_scan(
6264 priv
, band
, 0, /* passive */
6266 (void *)&scan
->data
[le16_to_cpu(scan
->tx_cmd
.len
)]);
6268 cmd
.len
+= le16_to_cpu(scan
->tx_cmd
.len
) +
6269 scan
->channel_count
* sizeof(struct iwl3945_scan_channel
);
6271 scan
->len
= cpu_to_le16(cmd
.len
);
6273 set_bit(STATUS_SCAN_HW
, &priv
->status
);
6274 rc
= iwl3945_send_cmd_sync(priv
, &cmd
);
6278 queue_delayed_work(priv
->workqueue
, &priv
->scan_check
,
6279 IWL_SCAN_CHECK_WATCHDOG
);
6281 mutex_unlock(&priv
->mutex
);
6285 /* inform mac80211 scan aborted */
6286 queue_work(priv
->workqueue
, &priv
->scan_completed
);
6287 mutex_unlock(&priv
->mutex
);
6290 static void iwl3945_bg_up(struct work_struct
*data
)
6292 struct iwl3945_priv
*priv
= container_of(data
, struct iwl3945_priv
, up
);
6294 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6297 mutex_lock(&priv
->mutex
);
6299 mutex_unlock(&priv
->mutex
);
6300 iwl3945_rfkill_set_hw_state(priv
);
6303 static void iwl3945_bg_restart(struct work_struct
*data
)
6305 struct iwl3945_priv
*priv
= container_of(data
, struct iwl3945_priv
, restart
);
6307 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6311 queue_work(priv
->workqueue
, &priv
->up
);
6314 static void iwl3945_bg_rx_replenish(struct work_struct
*data
)
6316 struct iwl3945_priv
*priv
=
6317 container_of(data
, struct iwl3945_priv
, rx_replenish
);
6319 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6322 mutex_lock(&priv
->mutex
);
6323 iwl3945_rx_replenish(priv
);
6324 mutex_unlock(&priv
->mutex
);
6327 #define IWL_DELAY_NEXT_SCAN (HZ*2)
6329 static void iwl3945_bg_post_associate(struct work_struct
*data
)
6331 struct iwl3945_priv
*priv
= container_of(data
, struct iwl3945_priv
,
6332 post_associate
.work
);
6335 struct ieee80211_conf
*conf
= NULL
;
6336 DECLARE_MAC_BUF(mac
);
6338 if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) {
6339 IWL_ERROR("%s Should not be called in AP mode\n", __FUNCTION__
);
6344 IWL_DEBUG_ASSOC("Associated as %d to: %s\n",
6346 print_mac(mac
, priv
->active_rxon
.bssid_addr
));
6348 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6351 mutex_lock(&priv
->mutex
);
6353 if (!priv
->vif
|| !priv
->is_open
) {
6354 mutex_unlock(&priv
->mutex
);
6357 iwl3945_scan_cancel_timeout(priv
, 200);
6359 conf
= ieee80211_get_hw_conf(priv
->hw
);
6361 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
6362 iwl3945_commit_rxon(priv
);
6364 memset(&priv
->rxon_timing
, 0, sizeof(struct iwl3945_rxon_time_cmd
));
6365 iwl3945_setup_rxon_timing(priv
);
6366 rc
= iwl3945_send_cmd_pdu(priv
, REPLY_RXON_TIMING
,
6367 sizeof(priv
->rxon_timing
), &priv
->rxon_timing
);
6369 IWL_WARNING("REPLY_RXON_TIMING failed - "
6370 "Attempting to continue.\n");
6372 priv
->staging_rxon
.filter_flags
|= RXON_FILTER_ASSOC_MSK
;
6374 priv
->staging_rxon
.assoc_id
= cpu_to_le16(priv
->assoc_id
);
6376 IWL_DEBUG_ASSOC("assoc id %d beacon interval %d\n",
6377 priv
->assoc_id
, priv
->beacon_int
);
6379 if (priv
->assoc_capability
& WLAN_CAPABILITY_SHORT_PREAMBLE
)
6380 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_PREAMBLE_MSK
;
6382 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_PREAMBLE_MSK
;
6384 if (priv
->staging_rxon
.flags
& RXON_FLG_BAND_24G_MSK
) {
6385 if (priv
->assoc_capability
& WLAN_CAPABILITY_SHORT_SLOT_TIME
)
6386 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_SLOT_MSK
;
6388 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_SLOT_MSK
;
6390 if (priv
->iw_mode
== IEEE80211_IF_TYPE_IBSS
)
6391 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_SLOT_MSK
;
6395 iwl3945_commit_rxon(priv
);
6397 switch (priv
->iw_mode
) {
6398 case IEEE80211_IF_TYPE_STA
:
6399 iwl3945_rate_scale_init(priv
->hw
, IWL_AP_ID
);
6402 case IEEE80211_IF_TYPE_IBSS
:
6404 /* clear out the station table */
6405 iwl3945_clear_stations_table(priv
);
6407 iwl3945_add_station(priv
, iwl3945_broadcast_addr
, 0, 0);
6408 iwl3945_add_station(priv
, priv
->bssid
, 0, 0);
6409 iwl3945_sync_sta(priv
, IWL_STA_ID
,
6410 (priv
->band
== IEEE80211_BAND_5GHZ
) ?
6411 IWL_RATE_6M_PLCP
: IWL_RATE_1M_PLCP
,
6413 iwl3945_rate_scale_init(priv
->hw
, IWL_STA_ID
);
6414 iwl3945_send_beacon_cmd(priv
);
6419 IWL_ERROR("%s Should not be called in %d mode\n",
6420 __FUNCTION__
, priv
->iw_mode
);
6424 iwl3945_activate_qos(priv
, 0);
6426 /* we have just associated, don't start scan too early */
6427 priv
->next_scan_jiffies
= jiffies
+ IWL_DELAY_NEXT_SCAN
;
6428 mutex_unlock(&priv
->mutex
);
6431 static void iwl3945_bg_abort_scan(struct work_struct
*work
)
6433 struct iwl3945_priv
*priv
= container_of(work
, struct iwl3945_priv
, abort_scan
);
6435 if (!iwl3945_is_ready(priv
))
6438 mutex_lock(&priv
->mutex
);
6440 set_bit(STATUS_SCAN_ABORTING
, &priv
->status
);
6441 iwl3945_send_scan_abort(priv
);
6443 mutex_unlock(&priv
->mutex
);
6446 static int iwl3945_mac_config(struct ieee80211_hw
*hw
, struct ieee80211_conf
*conf
);
6448 static void iwl3945_bg_scan_completed(struct work_struct
*work
)
6450 struct iwl3945_priv
*priv
=
6451 container_of(work
, struct iwl3945_priv
, scan_completed
);
6453 IWL_DEBUG(IWL_DL_INFO
| IWL_DL_SCAN
, "SCAN complete scan\n");
6455 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6458 if (test_bit(STATUS_CONF_PENDING
, &priv
->status
))
6459 iwl3945_mac_config(priv
->hw
, ieee80211_get_hw_conf(priv
->hw
));
6461 ieee80211_scan_completed(priv
->hw
);
6463 /* Since setting the TXPOWER may have been deferred while
6464 * performing the scan, fire one off */
6465 mutex_lock(&priv
->mutex
);
6466 iwl3945_hw_reg_send_txpower(priv
);
6467 mutex_unlock(&priv
->mutex
);
6470 /*****************************************************************************
6472 * mac80211 entry point functions
6474 *****************************************************************************/
6476 #define UCODE_READY_TIMEOUT (2 * HZ)
6478 static int iwl3945_mac_start(struct ieee80211_hw
*hw
)
6480 struct iwl3945_priv
*priv
= hw
->priv
;
6483 IWL_DEBUG_MAC80211("enter\n");
6485 if (pci_enable_device(priv
->pci_dev
)) {
6486 IWL_ERROR("Fail to pci_enable_device\n");
6489 pci_restore_state(priv
->pci_dev
);
6490 pci_enable_msi(priv
->pci_dev
);
6492 ret
= request_irq(priv
->pci_dev
->irq
, iwl3945_isr
, IRQF_SHARED
,
6495 IWL_ERROR("Error allocating IRQ %d\n", priv
->pci_dev
->irq
);
6496 goto out_disable_msi
;
6499 /* we should be verifying the device is ready to be opened */
6500 mutex_lock(&priv
->mutex
);
6502 memset(&priv
->staging_rxon
, 0, sizeof(struct iwl3945_rxon_cmd
));
6503 /* fetch ucode file from disk, alloc and copy to bus-master buffers ...
6504 * ucode filename and max sizes are card-specific. */
6506 if (!priv
->ucode_code
.len
) {
6507 ret
= iwl3945_read_ucode(priv
);
6509 IWL_ERROR("Could not read microcode: %d\n", ret
);
6510 mutex_unlock(&priv
->mutex
);
6511 goto out_release_irq
;
6515 ret
= __iwl3945_up(priv
);
6517 mutex_unlock(&priv
->mutex
);
6519 iwl3945_rfkill_set_hw_state(priv
);
6522 goto out_release_irq
;
6524 IWL_DEBUG_INFO("Start UP work.\n");
6526 if (test_bit(STATUS_IN_SUSPEND
, &priv
->status
))
6529 /* Wait for START_ALIVE from ucode. Otherwise callbacks from
6530 * mac80211 will not be run successfully. */
6531 ret
= wait_event_interruptible_timeout(priv
->wait_command_queue
,
6532 test_bit(STATUS_READY
, &priv
->status
),
6533 UCODE_READY_TIMEOUT
);
6535 if (!test_bit(STATUS_READY
, &priv
->status
)) {
6536 IWL_ERROR("Wait for START_ALIVE timeout after %dms.\n",
6537 jiffies_to_msecs(UCODE_READY_TIMEOUT
));
6539 goto out_release_irq
;
6544 IWL_DEBUG_MAC80211("leave\n");
6548 free_irq(priv
->pci_dev
->irq
, priv
);
6550 pci_disable_msi(priv
->pci_dev
);
6551 pci_disable_device(priv
->pci_dev
);
6553 IWL_DEBUG_MAC80211("leave - failed\n");
6557 static void iwl3945_mac_stop(struct ieee80211_hw
*hw
)
6559 struct iwl3945_priv
*priv
= hw
->priv
;
6561 IWL_DEBUG_MAC80211("enter\n");
6563 if (!priv
->is_open
) {
6564 IWL_DEBUG_MAC80211("leave - skip\n");
6570 if (iwl3945_is_ready_rf(priv
)) {
6571 /* stop mac, cancel any scan request and clear
6572 * RXON_FILTER_ASSOC_MSK BIT
6574 mutex_lock(&priv
->mutex
);
6575 iwl3945_scan_cancel_timeout(priv
, 100);
6576 cancel_delayed_work(&priv
->post_associate
);
6577 mutex_unlock(&priv
->mutex
);
6582 flush_workqueue(priv
->workqueue
);
6583 free_irq(priv
->pci_dev
->irq
, priv
);
6584 pci_disable_msi(priv
->pci_dev
);
6585 pci_save_state(priv
->pci_dev
);
6586 pci_disable_device(priv
->pci_dev
);
6588 IWL_DEBUG_MAC80211("leave\n");
6591 static int iwl3945_mac_tx(struct ieee80211_hw
*hw
, struct sk_buff
*skb
)
6593 struct iwl3945_priv
*priv
= hw
->priv
;
6595 IWL_DEBUG_MAC80211("enter\n");
6597 if (priv
->iw_mode
== IEEE80211_IF_TYPE_MNTR
) {
6598 IWL_DEBUG_MAC80211("leave - monitor\n");
6599 dev_kfree_skb_any(skb
);
6603 IWL_DEBUG_TX("dev->xmit(%d bytes) at rate 0x%02x\n", skb
->len
,
6604 ieee80211_get_tx_rate(hw
, IEEE80211_SKB_CB(skb
))->bitrate
);
6606 if (iwl3945_tx_skb(priv
, skb
))
6607 dev_kfree_skb_any(skb
);
6609 IWL_DEBUG_MAC80211("leave\n");
6613 static int iwl3945_mac_add_interface(struct ieee80211_hw
*hw
,
6614 struct ieee80211_if_init_conf
*conf
)
6616 struct iwl3945_priv
*priv
= hw
->priv
;
6617 unsigned long flags
;
6618 DECLARE_MAC_BUF(mac
);
6620 IWL_DEBUG_MAC80211("enter: type %d\n", conf
->type
);
6623 IWL_DEBUG_MAC80211("leave - vif != NULL\n");
6627 spin_lock_irqsave(&priv
->lock
, flags
);
6628 priv
->vif
= conf
->vif
;
6630 spin_unlock_irqrestore(&priv
->lock
, flags
);
6632 mutex_lock(&priv
->mutex
);
6634 if (conf
->mac_addr
) {
6635 IWL_DEBUG_MAC80211("Set: %s\n", print_mac(mac
, conf
->mac_addr
));
6636 memcpy(priv
->mac_addr
, conf
->mac_addr
, ETH_ALEN
);
6639 if (iwl3945_is_ready(priv
))
6640 iwl3945_set_mode(priv
, conf
->type
);
6642 mutex_unlock(&priv
->mutex
);
6644 IWL_DEBUG_MAC80211("leave\n");
6649 * iwl3945_mac_config - mac80211 config callback
6651 * We ignore conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME since it seems to
6652 * be set inappropriately and the driver currently sets the hardware up to
6653 * use it whenever needed.
6655 static int iwl3945_mac_config(struct ieee80211_hw
*hw
, struct ieee80211_conf
*conf
)
6657 struct iwl3945_priv
*priv
= hw
->priv
;
6658 const struct iwl3945_channel_info
*ch_info
;
6659 unsigned long flags
;
6662 mutex_lock(&priv
->mutex
);
6663 IWL_DEBUG_MAC80211("enter to channel %d\n", conf
->channel
->hw_value
);
6665 priv
->add_radiotap
= !!(conf
->flags
& IEEE80211_CONF_RADIOTAP
);
6667 if (!iwl3945_is_ready(priv
)) {
6668 IWL_DEBUG_MAC80211("leave - not ready\n");
6673 if (unlikely(!iwl3945_param_disable_hw_scan
&&
6674 test_bit(STATUS_SCANNING
, &priv
->status
))) {
6675 IWL_DEBUG_MAC80211("leave - scanning\n");
6676 set_bit(STATUS_CONF_PENDING
, &priv
->status
);
6677 mutex_unlock(&priv
->mutex
);
6681 spin_lock_irqsave(&priv
->lock
, flags
);
6683 ch_info
= iwl3945_get_channel_info(priv
, conf
->channel
->band
,
6684 conf
->channel
->hw_value
);
6685 if (!is_channel_valid(ch_info
)) {
6686 IWL_DEBUG_SCAN("Channel %d [%d] is INVALID for this band.\n",
6687 conf
->channel
->hw_value
, conf
->channel
->band
);
6688 IWL_DEBUG_MAC80211("leave - invalid channel\n");
6689 spin_unlock_irqrestore(&priv
->lock
, flags
);
6694 iwl3945_set_rxon_channel(priv
, conf
->channel
->band
, conf
->channel
->hw_value
);
6696 iwl3945_set_flags_for_phymode(priv
, conf
->channel
->band
);
6698 /* The list of supported rates and rate mask can be different
6699 * for each phymode; since the phymode may have changed, reset
6700 * the rate mask to what mac80211 lists */
6701 iwl3945_set_rate(priv
);
6703 spin_unlock_irqrestore(&priv
->lock
, flags
);
6705 #ifdef IEEE80211_CONF_CHANNEL_SWITCH
6706 if (conf
->flags
& IEEE80211_CONF_CHANNEL_SWITCH
) {
6707 iwl3945_hw_channel_switch(priv
, conf
->channel
);
6712 iwl3945_radio_kill_sw(priv
, !conf
->radio_enabled
);
6714 if (!conf
->radio_enabled
) {
6715 IWL_DEBUG_MAC80211("leave - radio disabled\n");
6719 if (iwl3945_is_rfkill(priv
)) {
6720 IWL_DEBUG_MAC80211("leave - RF kill\n");
6725 iwl3945_set_rate(priv
);
6727 if (memcmp(&priv
->active_rxon
,
6728 &priv
->staging_rxon
, sizeof(priv
->staging_rxon
)))
6729 iwl3945_commit_rxon(priv
);
6731 IWL_DEBUG_INFO("No re-sending same RXON configuration.\n");
6733 IWL_DEBUG_MAC80211("leave\n");
6736 clear_bit(STATUS_CONF_PENDING
, &priv
->status
);
6737 mutex_unlock(&priv
->mutex
);
6741 static void iwl3945_config_ap(struct iwl3945_priv
*priv
)
6745 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6748 /* The following should be done only at AP bring up */
6749 if (!(iwl3945_is_associated(priv
))) {
6751 /* RXON - unassoc (to set timing command) */
6752 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
6753 iwl3945_commit_rxon(priv
);
6756 memset(&priv
->rxon_timing
, 0, sizeof(struct iwl3945_rxon_time_cmd
));
6757 iwl3945_setup_rxon_timing(priv
);
6758 rc
= iwl3945_send_cmd_pdu(priv
, REPLY_RXON_TIMING
,
6759 sizeof(priv
->rxon_timing
), &priv
->rxon_timing
);
6761 IWL_WARNING("REPLY_RXON_TIMING failed - "
6762 "Attempting to continue.\n");
6764 /* FIXME: what should be the assoc_id for AP? */
6765 priv
->staging_rxon
.assoc_id
= cpu_to_le16(priv
->assoc_id
);
6766 if (priv
->assoc_capability
& WLAN_CAPABILITY_SHORT_PREAMBLE
)
6767 priv
->staging_rxon
.flags
|=
6768 RXON_FLG_SHORT_PREAMBLE_MSK
;
6770 priv
->staging_rxon
.flags
&=
6771 ~RXON_FLG_SHORT_PREAMBLE_MSK
;
6773 if (priv
->staging_rxon
.flags
& RXON_FLG_BAND_24G_MSK
) {
6774 if (priv
->assoc_capability
&
6775 WLAN_CAPABILITY_SHORT_SLOT_TIME
)
6776 priv
->staging_rxon
.flags
|=
6777 RXON_FLG_SHORT_SLOT_MSK
;
6779 priv
->staging_rxon
.flags
&=
6780 ~RXON_FLG_SHORT_SLOT_MSK
;
6782 if (priv
->iw_mode
== IEEE80211_IF_TYPE_IBSS
)
6783 priv
->staging_rxon
.flags
&=
6784 ~RXON_FLG_SHORT_SLOT_MSK
;
6786 /* restore RXON assoc */
6787 priv
->staging_rxon
.filter_flags
|= RXON_FILTER_ASSOC_MSK
;
6788 iwl3945_commit_rxon(priv
);
6789 iwl3945_add_station(priv
, iwl3945_broadcast_addr
, 0, 0);
6791 iwl3945_send_beacon_cmd(priv
);
6793 /* FIXME - we need to add code here to detect a totally new
6794 * configuration, reset the AP, unassoc, rxon timing, assoc,
6795 * clear sta table, add BCAST sta... */
6799 static int iwl3945_mac_beacon_update(struct ieee80211_hw
*hw
, struct sk_buff
*skb
);
6801 static int iwl3945_mac_config_interface(struct ieee80211_hw
*hw
,
6802 struct ieee80211_vif
*vif
,
6803 struct ieee80211_if_conf
*conf
)
6805 struct iwl3945_priv
*priv
= hw
->priv
;
6806 DECLARE_MAC_BUF(mac
);
6807 unsigned long flags
;
6813 if (priv
->vif
!= vif
) {
6814 IWL_DEBUG_MAC80211("leave - priv->vif != vif\n");
6818 /* handle this temporarily here */
6819 if (priv
->iw_mode
== IEEE80211_IF_TYPE_IBSS
&&
6820 conf
->changed
& IEEE80211_IFCC_BEACON
) {
6821 struct sk_buff
*beacon
= ieee80211_beacon_get(hw
, vif
);
6824 rc
= iwl3945_mac_beacon_update(hw
, beacon
);
6829 /* XXX: this MUST use conf->mac_addr */
6831 if ((priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) &&
6832 (!conf
->ssid_len
)) {
6834 ("Leaving in AP mode because HostAPD is not ready.\n");
6838 if (!iwl3945_is_alive(priv
))
6841 mutex_lock(&priv
->mutex
);
6844 IWL_DEBUG_MAC80211("bssid: %s\n",
6845 print_mac(mac
, conf
->bssid
));
6848 * very dubious code was here; the probe filtering flag is never set:
6850 if (unlikely(test_bit(STATUS_SCANNING, &priv->status)) &&
6851 !(priv->hw->flags & IEEE80211_HW_NO_PROBE_FILTERING)) {
6854 if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) {
6856 conf
->bssid
= priv
->mac_addr
;
6857 memcpy(priv
->bssid
, priv
->mac_addr
, ETH_ALEN
);
6858 IWL_DEBUG_MAC80211("bssid was set to: %s\n",
6859 print_mac(mac
, conf
->bssid
));
6861 if (priv
->ibss_beacon
)
6862 dev_kfree_skb(priv
->ibss_beacon
);
6864 priv
->ibss_beacon
= ieee80211_beacon_get(hw
, vif
);
6867 if (iwl3945_is_rfkill(priv
))
6870 if (conf
->bssid
&& !is_zero_ether_addr(conf
->bssid
) &&
6871 !is_multicast_ether_addr(conf
->bssid
)) {
6872 /* If there is currently a HW scan going on in the background
6873 * then we need to cancel it else the RXON below will fail. */
6874 if (iwl3945_scan_cancel_timeout(priv
, 100)) {
6875 IWL_WARNING("Aborted scan still in progress "
6877 IWL_DEBUG_MAC80211("leaving - scan abort failed.\n");
6878 mutex_unlock(&priv
->mutex
);
6881 memcpy(priv
->staging_rxon
.bssid_addr
, conf
->bssid
, ETH_ALEN
);
6883 /* TODO: Audit driver for usage of these members and see
6884 * if mac80211 deprecates them (priv->bssid looks like it
6885 * shouldn't be there, but I haven't scanned the IBSS code
6886 * to verify) - jpk */
6887 memcpy(priv
->bssid
, conf
->bssid
, ETH_ALEN
);
6889 if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
)
6890 iwl3945_config_ap(priv
);
6892 rc
= iwl3945_commit_rxon(priv
);
6893 if ((priv
->iw_mode
== IEEE80211_IF_TYPE_STA
) && rc
)
6894 iwl3945_add_station(priv
,
6895 priv
->active_rxon
.bssid_addr
, 1, 0);
6899 iwl3945_scan_cancel_timeout(priv
, 100);
6900 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
6901 iwl3945_commit_rxon(priv
);
6905 spin_lock_irqsave(&priv
->lock
, flags
);
6906 if (!conf
->ssid_len
)
6907 memset(priv
->essid
, 0, IW_ESSID_MAX_SIZE
);
6909 memcpy(priv
->essid
, conf
->ssid
, conf
->ssid_len
);
6911 priv
->essid_len
= conf
->ssid_len
;
6912 spin_unlock_irqrestore(&priv
->lock
, flags
);
6914 IWL_DEBUG_MAC80211("leave\n");
6915 mutex_unlock(&priv
->mutex
);
6920 static void iwl3945_configure_filter(struct ieee80211_hw
*hw
,
6921 unsigned int changed_flags
,
6922 unsigned int *total_flags
,
6923 int mc_count
, struct dev_addr_list
*mc_list
)
6925 struct iwl3945_priv
*priv
= hw
->priv
;
6927 if (changed_flags
& (*total_flags
) & FIF_OTHER_BSS
) {
6928 IWL_DEBUG_MAC80211("Enter: type %d (0x%x, 0x%x)\n",
6929 IEEE80211_IF_TYPE_MNTR
,
6930 changed_flags
, *total_flags
);
6931 /* queue work 'cuz mac80211 is holding a lock which
6932 * prevents us from issuing (synchronous) f/w cmds */
6933 queue_work(priv
->workqueue
, &priv
->set_monitor
);
6935 *total_flags
&= FIF_OTHER_BSS
| FIF_ALLMULTI
|
6936 FIF_BCN_PRBRESP_PROMISC
| FIF_CONTROL
;
6939 static void iwl3945_mac_remove_interface(struct ieee80211_hw
*hw
,
6940 struct ieee80211_if_init_conf
*conf
)
6942 struct iwl3945_priv
*priv
= hw
->priv
;
6944 IWL_DEBUG_MAC80211("enter\n");
6946 mutex_lock(&priv
->mutex
);
6948 if (iwl3945_is_ready_rf(priv
)) {
6949 iwl3945_scan_cancel_timeout(priv
, 100);
6950 cancel_delayed_work(&priv
->post_associate
);
6951 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
6952 iwl3945_commit_rxon(priv
);
6954 if (priv
->vif
== conf
->vif
) {
6956 memset(priv
->bssid
, 0, ETH_ALEN
);
6957 memset(priv
->essid
, 0, IW_ESSID_MAX_SIZE
);
6958 priv
->essid_len
= 0;
6960 mutex_unlock(&priv
->mutex
);
6962 IWL_DEBUG_MAC80211("leave\n");
6965 static int iwl3945_mac_hw_scan(struct ieee80211_hw
*hw
, u8
*ssid
, size_t len
)
6968 unsigned long flags
;
6969 struct iwl3945_priv
*priv
= hw
->priv
;
6971 IWL_DEBUG_MAC80211("enter\n");
6973 mutex_lock(&priv
->mutex
);
6974 spin_lock_irqsave(&priv
->lock
, flags
);
6976 if (!iwl3945_is_ready_rf(priv
)) {
6978 IWL_DEBUG_MAC80211("leave - not ready or exit pending\n");
6982 if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) { /* APs don't scan */
6984 IWL_ERROR("ERROR: APs don't scan\n");
6988 /* we don't schedule scan within next_scan_jiffies period */
6989 if (priv
->next_scan_jiffies
&&
6990 time_after(priv
->next_scan_jiffies
, jiffies
)) {
6994 /* if we just finished scan ask for delay for a broadcast scan */
6995 if ((len
== 0) && priv
->last_scan_jiffies
&&
6996 time_after(priv
->last_scan_jiffies
+ IWL_DELAY_NEXT_SCAN
,
7002 IWL_DEBUG_SCAN("direct scan for %s [%d]\n ",
7003 iwl3945_escape_essid(ssid
, len
), (int)len
);
7005 priv
->one_direct_scan
= 1;
7006 priv
->direct_ssid_len
= (u8
)
7007 min((u8
) len
, (u8
) IW_ESSID_MAX_SIZE
);
7008 memcpy(priv
->direct_ssid
, ssid
, priv
->direct_ssid_len
);
7010 priv
->one_direct_scan
= 0;
7012 rc
= iwl3945_scan_initiate(priv
);
7014 IWL_DEBUG_MAC80211("leave\n");
7017 spin_unlock_irqrestore(&priv
->lock
, flags
);
7018 mutex_unlock(&priv
->mutex
);
7023 static int iwl3945_mac_set_key(struct ieee80211_hw
*hw
, enum set_key_cmd cmd
,
7024 const u8
*local_addr
, const u8
*addr
,
7025 struct ieee80211_key_conf
*key
)
7027 struct iwl3945_priv
*priv
= hw
->priv
;
7031 IWL_DEBUG_MAC80211("enter\n");
7033 if (!iwl3945_param_hwcrypto
) {
7034 IWL_DEBUG_MAC80211("leave - hwcrypto disabled\n");
7038 if (is_zero_ether_addr(addr
))
7039 /* only support pairwise keys */
7042 sta_id
= iwl3945_hw_find_station(priv
, addr
);
7043 if (sta_id
== IWL_INVALID_STATION
) {
7044 DECLARE_MAC_BUF(mac
);
7046 IWL_DEBUG_MAC80211("leave - %s not in station map.\n",
7047 print_mac(mac
, addr
));
7051 mutex_lock(&priv
->mutex
);
7053 iwl3945_scan_cancel_timeout(priv
, 100);
7057 rc
= iwl3945_update_sta_key_info(priv
, key
, sta_id
);
7059 iwl3945_set_rxon_hwcrypto(priv
, 1);
7060 iwl3945_commit_rxon(priv
);
7061 key
->hw_key_idx
= sta_id
;
7062 IWL_DEBUG_MAC80211("set_key success, using hwcrypto\n");
7063 key
->flags
|= IEEE80211_KEY_FLAG_GENERATE_IV
;
7067 rc
= iwl3945_clear_sta_key_info(priv
, sta_id
);
7069 iwl3945_set_rxon_hwcrypto(priv
, 0);
7070 iwl3945_commit_rxon(priv
);
7071 IWL_DEBUG_MAC80211("disable hwcrypto key\n");
7078 IWL_DEBUG_MAC80211("leave\n");
7079 mutex_unlock(&priv
->mutex
);
7084 static int iwl3945_mac_conf_tx(struct ieee80211_hw
*hw
, u16 queue
,
7085 const struct ieee80211_tx_queue_params
*params
)
7087 struct iwl3945_priv
*priv
= hw
->priv
;
7088 unsigned long flags
;
7091 IWL_DEBUG_MAC80211("enter\n");
7093 if (!iwl3945_is_ready_rf(priv
)) {
7094 IWL_DEBUG_MAC80211("leave - RF not ready\n");
7098 if (queue
>= AC_NUM
) {
7099 IWL_DEBUG_MAC80211("leave - queue >= AC_NUM %d\n", queue
);
7103 if (!priv
->qos_data
.qos_enable
) {
7104 priv
->qos_data
.qos_active
= 0;
7105 IWL_DEBUG_MAC80211("leave - qos not enabled\n");
7108 q
= AC_NUM
- 1 - queue
;
7110 spin_lock_irqsave(&priv
->lock
, flags
);
7112 priv
->qos_data
.def_qos_parm
.ac
[q
].cw_min
= cpu_to_le16(params
->cw_min
);
7113 priv
->qos_data
.def_qos_parm
.ac
[q
].cw_max
= cpu_to_le16(params
->cw_max
);
7114 priv
->qos_data
.def_qos_parm
.ac
[q
].aifsn
= params
->aifs
;
7115 priv
->qos_data
.def_qos_parm
.ac
[q
].edca_txop
=
7116 cpu_to_le16((params
->txop
* 32));
7118 priv
->qos_data
.def_qos_parm
.ac
[q
].reserved1
= 0;
7119 priv
->qos_data
.qos_active
= 1;
7121 spin_unlock_irqrestore(&priv
->lock
, flags
);
7123 mutex_lock(&priv
->mutex
);
7124 if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
)
7125 iwl3945_activate_qos(priv
, 1);
7126 else if (priv
->assoc_id
&& iwl3945_is_associated(priv
))
7127 iwl3945_activate_qos(priv
, 0);
7129 mutex_unlock(&priv
->mutex
);
7131 IWL_DEBUG_MAC80211("leave\n");
7135 static int iwl3945_mac_get_tx_stats(struct ieee80211_hw
*hw
,
7136 struct ieee80211_tx_queue_stats
*stats
)
7138 struct iwl3945_priv
*priv
= hw
->priv
;
7140 struct iwl3945_tx_queue
*txq
;
7141 struct iwl3945_queue
*q
;
7142 unsigned long flags
;
7144 IWL_DEBUG_MAC80211("enter\n");
7146 if (!iwl3945_is_ready_rf(priv
)) {
7147 IWL_DEBUG_MAC80211("leave - RF not ready\n");
7151 spin_lock_irqsave(&priv
->lock
, flags
);
7153 for (i
= 0; i
< AC_NUM
; i
++) {
7154 txq
= &priv
->txq
[i
];
7156 avail
= iwl3945_queue_space(q
);
7158 stats
[i
].len
= q
->n_window
- avail
;
7159 stats
[i
].limit
= q
->n_window
- q
->high_mark
;
7160 stats
[i
].count
= q
->n_window
;
7163 spin_unlock_irqrestore(&priv
->lock
, flags
);
7165 IWL_DEBUG_MAC80211("leave\n");
7170 static int iwl3945_mac_get_stats(struct ieee80211_hw
*hw
,
7171 struct ieee80211_low_level_stats
*stats
)
7173 IWL_DEBUG_MAC80211("enter\n");
7174 IWL_DEBUG_MAC80211("leave\n");
7179 static u64
iwl3945_mac_get_tsf(struct ieee80211_hw
*hw
)
7181 IWL_DEBUG_MAC80211("enter\n");
7182 IWL_DEBUG_MAC80211("leave\n");
7187 static void iwl3945_mac_reset_tsf(struct ieee80211_hw
*hw
)
7189 struct iwl3945_priv
*priv
= hw
->priv
;
7190 unsigned long flags
;
7192 mutex_lock(&priv
->mutex
);
7193 IWL_DEBUG_MAC80211("enter\n");
7195 iwl3945_reset_qos(priv
);
7197 cancel_delayed_work(&priv
->post_associate
);
7199 spin_lock_irqsave(&priv
->lock
, flags
);
7201 priv
->assoc_capability
= 0;
7202 priv
->call_post_assoc_from_beacon
= 0;
7204 /* new association get rid of ibss beacon skb */
7205 if (priv
->ibss_beacon
)
7206 dev_kfree_skb(priv
->ibss_beacon
);
7208 priv
->ibss_beacon
= NULL
;
7210 priv
->beacon_int
= priv
->hw
->conf
.beacon_int
;
7211 priv
->timestamp1
= 0;
7212 priv
->timestamp0
= 0;
7213 if ((priv
->iw_mode
== IEEE80211_IF_TYPE_STA
))
7214 priv
->beacon_int
= 0;
7216 spin_unlock_irqrestore(&priv
->lock
, flags
);
7218 if (!iwl3945_is_ready_rf(priv
)) {
7219 IWL_DEBUG_MAC80211("leave - not ready\n");
7220 mutex_unlock(&priv
->mutex
);
7224 /* we are restarting association process
7225 * clear RXON_FILTER_ASSOC_MSK bit
7227 if (priv
->iw_mode
!= IEEE80211_IF_TYPE_AP
) {
7228 iwl3945_scan_cancel_timeout(priv
, 100);
7229 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
7230 iwl3945_commit_rxon(priv
);
7233 /* Per mac80211.h: This is only used in IBSS mode... */
7234 if (priv
->iw_mode
!= IEEE80211_IF_TYPE_IBSS
) {
7236 IWL_DEBUG_MAC80211("leave - not in IBSS\n");
7237 mutex_unlock(&priv
->mutex
);
7241 iwl3945_set_rate(priv
);
7243 mutex_unlock(&priv
->mutex
);
7245 IWL_DEBUG_MAC80211("leave\n");
7249 static int iwl3945_mac_beacon_update(struct ieee80211_hw
*hw
, struct sk_buff
*skb
)
7251 struct iwl3945_priv
*priv
= hw
->priv
;
7252 unsigned long flags
;
7254 mutex_lock(&priv
->mutex
);
7255 IWL_DEBUG_MAC80211("enter\n");
7257 if (!iwl3945_is_ready_rf(priv
)) {
7258 IWL_DEBUG_MAC80211("leave - RF not ready\n");
7259 mutex_unlock(&priv
->mutex
);
7263 if (priv
->iw_mode
!= IEEE80211_IF_TYPE_IBSS
) {
7264 IWL_DEBUG_MAC80211("leave - not IBSS\n");
7265 mutex_unlock(&priv
->mutex
);
7269 spin_lock_irqsave(&priv
->lock
, flags
);
7271 if (priv
->ibss_beacon
)
7272 dev_kfree_skb(priv
->ibss_beacon
);
7274 priv
->ibss_beacon
= skb
;
7278 IWL_DEBUG_MAC80211("leave\n");
7279 spin_unlock_irqrestore(&priv
->lock
, flags
);
7281 iwl3945_reset_qos(priv
);
7283 queue_work(priv
->workqueue
, &priv
->post_associate
.work
);
7285 mutex_unlock(&priv
->mutex
);
7290 /*****************************************************************************
7294 *****************************************************************************/
7296 #ifdef CONFIG_IWL3945_DEBUG
7299 * The following adds a new attribute to the sysfs representation
7300 * of this device driver (i.e. a new file in /sys/bus/pci/drivers/iwl/)
7301 * used for controlling the debug level.
7303 * See the level definitions in iwl for details.
7306 static ssize_t
show_debug_level(struct device_driver
*d
, char *buf
)
7308 return sprintf(buf
, "0x%08X\n", iwl3945_debug_level
);
7310 static ssize_t
store_debug_level(struct device_driver
*d
,
7311 const char *buf
, size_t count
)
7313 char *p
= (char *)buf
;
7316 val
= simple_strtoul(p
, &p
, 0);
7318 printk(KERN_INFO DRV_NAME
7319 ": %s is not in hex or decimal form.\n", buf
);
7321 iwl3945_debug_level
= val
;
7323 return strnlen(buf
, count
);
7326 static DRIVER_ATTR(debug_level
, S_IWUSR
| S_IRUGO
,
7327 show_debug_level
, store_debug_level
);
7329 #endif /* CONFIG_IWL3945_DEBUG */
7331 static ssize_t
show_temperature(struct device
*d
,
7332 struct device_attribute
*attr
, char *buf
)
7334 struct iwl3945_priv
*priv
= (struct iwl3945_priv
*)d
->driver_data
;
7336 if (!iwl3945_is_alive(priv
))
7339 return sprintf(buf
, "%d\n", iwl3945_hw_get_temperature(priv
));
7342 static DEVICE_ATTR(temperature
, S_IRUGO
, show_temperature
, NULL
);
7344 static ssize_t
show_rs_window(struct device
*d
,
7345 struct device_attribute
*attr
,
7348 struct iwl3945_priv
*priv
= d
->driver_data
;
7349 return iwl3945_fill_rs_info(priv
->hw
, buf
, IWL_AP_ID
);
7351 static DEVICE_ATTR(rs_window
, S_IRUGO
, show_rs_window
, NULL
);
7353 static ssize_t
show_tx_power(struct device
*d
,
7354 struct device_attribute
*attr
, char *buf
)
7356 struct iwl3945_priv
*priv
= (struct iwl3945_priv
*)d
->driver_data
;
7357 return sprintf(buf
, "%d\n", priv
->user_txpower_limit
);
7360 static ssize_t
store_tx_power(struct device
*d
,
7361 struct device_attribute
*attr
,
7362 const char *buf
, size_t count
)
7364 struct iwl3945_priv
*priv
= (struct iwl3945_priv
*)d
->driver_data
;
7365 char *p
= (char *)buf
;
7368 val
= simple_strtoul(p
, &p
, 10);
7370 printk(KERN_INFO DRV_NAME
7371 ": %s is not in decimal form.\n", buf
);
7373 iwl3945_hw_reg_set_txpower(priv
, val
);
7378 static DEVICE_ATTR(tx_power
, S_IWUSR
| S_IRUGO
, show_tx_power
, store_tx_power
);
7380 static ssize_t
show_flags(struct device
*d
,
7381 struct device_attribute
*attr
, char *buf
)
7383 struct iwl3945_priv
*priv
= (struct iwl3945_priv
*)d
->driver_data
;
7385 return sprintf(buf
, "0x%04X\n", priv
->active_rxon
.flags
);
7388 static ssize_t
store_flags(struct device
*d
,
7389 struct device_attribute
*attr
,
7390 const char *buf
, size_t count
)
7392 struct iwl3945_priv
*priv
= (struct iwl3945_priv
*)d
->driver_data
;
7393 u32 flags
= simple_strtoul(buf
, NULL
, 0);
7395 mutex_lock(&priv
->mutex
);
7396 if (le32_to_cpu(priv
->staging_rxon
.flags
) != flags
) {
7397 /* Cancel any currently running scans... */
7398 if (iwl3945_scan_cancel_timeout(priv
, 100))
7399 IWL_WARNING("Could not cancel scan.\n");
7401 IWL_DEBUG_INFO("Committing rxon.flags = 0x%04X\n",
7403 priv
->staging_rxon
.flags
= cpu_to_le32(flags
);
7404 iwl3945_commit_rxon(priv
);
7407 mutex_unlock(&priv
->mutex
);
7412 static DEVICE_ATTR(flags
, S_IWUSR
| S_IRUGO
, show_flags
, store_flags
);
7414 static ssize_t
show_filter_flags(struct device
*d
,
7415 struct device_attribute
*attr
, char *buf
)
7417 struct iwl3945_priv
*priv
= (struct iwl3945_priv
*)d
->driver_data
;
7419 return sprintf(buf
, "0x%04X\n",
7420 le32_to_cpu(priv
->active_rxon
.filter_flags
));
7423 static ssize_t
store_filter_flags(struct device
*d
,
7424 struct device_attribute
*attr
,
7425 const char *buf
, size_t count
)
7427 struct iwl3945_priv
*priv
= (struct iwl3945_priv
*)d
->driver_data
;
7428 u32 filter_flags
= simple_strtoul(buf
, NULL
, 0);
7430 mutex_lock(&priv
->mutex
);
7431 if (le32_to_cpu(priv
->staging_rxon
.filter_flags
) != filter_flags
) {
7432 /* Cancel any currently running scans... */
7433 if (iwl3945_scan_cancel_timeout(priv
, 100))
7434 IWL_WARNING("Could not cancel scan.\n");
7436 IWL_DEBUG_INFO("Committing rxon.filter_flags = "
7437 "0x%04X\n", filter_flags
);
7438 priv
->staging_rxon
.filter_flags
=
7439 cpu_to_le32(filter_flags
);
7440 iwl3945_commit_rxon(priv
);
7443 mutex_unlock(&priv
->mutex
);
7448 static DEVICE_ATTR(filter_flags
, S_IWUSR
| S_IRUGO
, show_filter_flags
,
7449 store_filter_flags
);
7451 #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT
7453 static ssize_t
show_measurement(struct device
*d
,
7454 struct device_attribute
*attr
, char *buf
)
7456 struct iwl3945_priv
*priv
= dev_get_drvdata(d
);
7457 struct iwl3945_spectrum_notification measure_report
;
7458 u32 size
= sizeof(measure_report
), len
= 0, ofs
= 0;
7459 u8
*data
= (u8
*) & measure_report
;
7460 unsigned long flags
;
7462 spin_lock_irqsave(&priv
->lock
, flags
);
7463 if (!(priv
->measurement_status
& MEASUREMENT_READY
)) {
7464 spin_unlock_irqrestore(&priv
->lock
, flags
);
7467 memcpy(&measure_report
, &priv
->measure_report
, size
);
7468 priv
->measurement_status
= 0;
7469 spin_unlock_irqrestore(&priv
->lock
, flags
);
7471 while (size
&& (PAGE_SIZE
- len
)) {
7472 hex_dump_to_buffer(data
+ ofs
, size
, 16, 1, buf
+ len
,
7473 PAGE_SIZE
- len
, 1);
7475 if (PAGE_SIZE
- len
)
7479 size
-= min(size
, 16U);
7485 static ssize_t
store_measurement(struct device
*d
,
7486 struct device_attribute
*attr
,
7487 const char *buf
, size_t count
)
7489 struct iwl3945_priv
*priv
= dev_get_drvdata(d
);
7490 struct ieee80211_measurement_params params
= {
7491 .channel
= le16_to_cpu(priv
->active_rxon
.channel
),
7492 .start_time
= cpu_to_le64(priv
->last_tsf
),
7493 .duration
= cpu_to_le16(1),
7495 u8 type
= IWL_MEASURE_BASIC
;
7501 strncpy(buffer
, buf
, min(sizeof(buffer
), count
));
7502 channel
= simple_strtoul(p
, NULL
, 0);
7504 params
.channel
= channel
;
7507 while (*p
&& *p
!= ' ')
7510 type
= simple_strtoul(p
+ 1, NULL
, 0);
7513 IWL_DEBUG_INFO("Invoking measurement of type %d on "
7514 "channel %d (for '%s')\n", type
, params
.channel
, buf
);
7515 iwl3945_get_measurement(priv
, ¶ms
, type
);
7520 static DEVICE_ATTR(measurement
, S_IRUSR
| S_IWUSR
,
7521 show_measurement
, store_measurement
);
7522 #endif /* CONFIG_IWL3945_SPECTRUM_MEASUREMENT */
7524 static ssize_t
store_retry_rate(struct device
*d
,
7525 struct device_attribute
*attr
,
7526 const char *buf
, size_t count
)
7528 struct iwl3945_priv
*priv
= dev_get_drvdata(d
);
7530 priv
->retry_rate
= simple_strtoul(buf
, NULL
, 0);
7531 if (priv
->retry_rate
<= 0)
7532 priv
->retry_rate
= 1;
7537 static ssize_t
show_retry_rate(struct device
*d
,
7538 struct device_attribute
*attr
, char *buf
)
7540 struct iwl3945_priv
*priv
= dev_get_drvdata(d
);
7541 return sprintf(buf
, "%d", priv
->retry_rate
);
7544 static DEVICE_ATTR(retry_rate
, S_IWUSR
| S_IRUSR
, show_retry_rate
,
7547 static ssize_t
store_power_level(struct device
*d
,
7548 struct device_attribute
*attr
,
7549 const char *buf
, size_t count
)
7551 struct iwl3945_priv
*priv
= dev_get_drvdata(d
);
7555 mode
= simple_strtoul(buf
, NULL
, 0);
7556 mutex_lock(&priv
->mutex
);
7558 if (!iwl3945_is_ready(priv
)) {
7563 if ((mode
< 1) || (mode
> IWL_POWER_LIMIT
) || (mode
== IWL_POWER_AC
))
7564 mode
= IWL_POWER_AC
;
7566 mode
|= IWL_POWER_ENABLED
;
7568 if (mode
!= priv
->power_mode
) {
7569 rc
= iwl3945_send_power_mode(priv
, IWL_POWER_LEVEL(mode
));
7571 IWL_DEBUG_MAC80211("failed setting power mode.\n");
7574 priv
->power_mode
= mode
;
7580 mutex_unlock(&priv
->mutex
);
7584 #define MAX_WX_STRING 80
7586 /* Values are in microsecond */
7587 static const s32 timeout_duration
[] = {
7594 static const s32 period_duration
[] = {
7602 static ssize_t
show_power_level(struct device
*d
,
7603 struct device_attribute
*attr
, char *buf
)
7605 struct iwl3945_priv
*priv
= dev_get_drvdata(d
);
7606 int level
= IWL_POWER_LEVEL(priv
->power_mode
);
7609 p
+= sprintf(p
, "%d ", level
);
7611 case IWL_POWER_MODE_CAM
:
7613 p
+= sprintf(p
, "(AC)");
7615 case IWL_POWER_BATTERY
:
7616 p
+= sprintf(p
, "(BATTERY)");
7620 "(Timeout %dms, Period %dms)",
7621 timeout_duration
[level
- 1] / 1000,
7622 period_duration
[level
- 1] / 1000);
7625 if (!(priv
->power_mode
& IWL_POWER_ENABLED
))
7626 p
+= sprintf(p
, " OFF\n");
7628 p
+= sprintf(p
, " \n");
7630 return (p
- buf
+ 1);
7634 static DEVICE_ATTR(power_level
, S_IWUSR
| S_IRUSR
, show_power_level
,
7637 static ssize_t
show_channels(struct device
*d
,
7638 struct device_attribute
*attr
, char *buf
)
7640 /* all this shit doesn't belong into sysfs anyway */
7644 static DEVICE_ATTR(channels
, S_IRUSR
, show_channels
, NULL
);
7646 static ssize_t
show_statistics(struct device
*d
,
7647 struct device_attribute
*attr
, char *buf
)
7649 struct iwl3945_priv
*priv
= dev_get_drvdata(d
);
7650 u32 size
= sizeof(struct iwl3945_notif_statistics
);
7651 u32 len
= 0, ofs
= 0;
7652 u8
*data
= (u8
*) & priv
->statistics
;
7655 if (!iwl3945_is_alive(priv
))
7658 mutex_lock(&priv
->mutex
);
7659 rc
= iwl3945_send_statistics_request(priv
);
7660 mutex_unlock(&priv
->mutex
);
7664 "Error sending statistics request: 0x%08X\n", rc
);
7668 while (size
&& (PAGE_SIZE
- len
)) {
7669 hex_dump_to_buffer(data
+ ofs
, size
, 16, 1, buf
+ len
,
7670 PAGE_SIZE
- len
, 1);
7672 if (PAGE_SIZE
- len
)
7676 size
-= min(size
, 16U);
7682 static DEVICE_ATTR(statistics
, S_IRUGO
, show_statistics
, NULL
);
7684 static ssize_t
show_antenna(struct device
*d
,
7685 struct device_attribute
*attr
, char *buf
)
7687 struct iwl3945_priv
*priv
= dev_get_drvdata(d
);
7689 if (!iwl3945_is_alive(priv
))
7692 return sprintf(buf
, "%d\n", priv
->antenna
);
7695 static ssize_t
store_antenna(struct device
*d
,
7696 struct device_attribute
*attr
,
7697 const char *buf
, size_t count
)
7700 struct iwl3945_priv
*priv
= dev_get_drvdata(d
);
7705 if (sscanf(buf
, "%1i", &ant
) != 1) {
7706 IWL_DEBUG_INFO("not in hex or decimal form.\n");
7710 if ((ant
>= 0) && (ant
<= 2)) {
7711 IWL_DEBUG_INFO("Setting antenna select to %d.\n", ant
);
7712 priv
->antenna
= (enum iwl3945_antenna
)ant
;
7714 IWL_DEBUG_INFO("Bad antenna select value %d.\n", ant
);
7720 static DEVICE_ATTR(antenna
, S_IWUSR
| S_IRUGO
, show_antenna
, store_antenna
);
7722 static ssize_t
show_status(struct device
*d
,
7723 struct device_attribute
*attr
, char *buf
)
7725 struct iwl3945_priv
*priv
= (struct iwl3945_priv
*)d
->driver_data
;
7726 if (!iwl3945_is_alive(priv
))
7728 return sprintf(buf
, "0x%08x\n", (int)priv
->status
);
7731 static DEVICE_ATTR(status
, S_IRUGO
, show_status
, NULL
);
7733 static ssize_t
dump_error_log(struct device
*d
,
7734 struct device_attribute
*attr
,
7735 const char *buf
, size_t count
)
7737 char *p
= (char *)buf
;
7740 iwl3945_dump_nic_error_log((struct iwl3945_priv
*)d
->driver_data
);
7742 return strnlen(buf
, count
);
7745 static DEVICE_ATTR(dump_errors
, S_IWUSR
, NULL
, dump_error_log
);
7747 static ssize_t
dump_event_log(struct device
*d
,
7748 struct device_attribute
*attr
,
7749 const char *buf
, size_t count
)
7751 char *p
= (char *)buf
;
7754 iwl3945_dump_nic_event_log((struct iwl3945_priv
*)d
->driver_data
);
7756 return strnlen(buf
, count
);
7759 static DEVICE_ATTR(dump_events
, S_IWUSR
, NULL
, dump_event_log
);
7761 /*****************************************************************************
7763 * driver setup and teardown
7765 *****************************************************************************/
7767 static void iwl3945_setup_deferred_work(struct iwl3945_priv
*priv
)
7769 priv
->workqueue
= create_workqueue(DRV_NAME
);
7771 init_waitqueue_head(&priv
->wait_command_queue
);
7773 INIT_WORK(&priv
->up
, iwl3945_bg_up
);
7774 INIT_WORK(&priv
->restart
, iwl3945_bg_restart
);
7775 INIT_WORK(&priv
->rx_replenish
, iwl3945_bg_rx_replenish
);
7776 INIT_WORK(&priv
->scan_completed
, iwl3945_bg_scan_completed
);
7777 INIT_WORK(&priv
->request_scan
, iwl3945_bg_request_scan
);
7778 INIT_WORK(&priv
->abort_scan
, iwl3945_bg_abort_scan
);
7779 INIT_WORK(&priv
->rf_kill
, iwl3945_bg_rf_kill
);
7780 INIT_WORK(&priv
->beacon_update
, iwl3945_bg_beacon_update
);
7781 INIT_WORK(&priv
->set_monitor
, iwl3945_bg_set_monitor
);
7782 INIT_DELAYED_WORK(&priv
->post_associate
, iwl3945_bg_post_associate
);
7783 INIT_DELAYED_WORK(&priv
->init_alive_start
, iwl3945_bg_init_alive_start
);
7784 INIT_DELAYED_WORK(&priv
->alive_start
, iwl3945_bg_alive_start
);
7785 INIT_DELAYED_WORK(&priv
->scan_check
, iwl3945_bg_scan_check
);
7787 iwl3945_hw_setup_deferred_work(priv
);
7789 tasklet_init(&priv
->irq_tasklet
, (void (*)(unsigned long))
7790 iwl3945_irq_tasklet
, (unsigned long)priv
);
7793 static void iwl3945_cancel_deferred_work(struct iwl3945_priv
*priv
)
7795 iwl3945_hw_cancel_deferred_work(priv
);
7797 cancel_delayed_work_sync(&priv
->init_alive_start
);
7798 cancel_delayed_work(&priv
->scan_check
);
7799 cancel_delayed_work(&priv
->alive_start
);
7800 cancel_delayed_work(&priv
->post_associate
);
7801 cancel_work_sync(&priv
->beacon_update
);
7804 static struct attribute
*iwl3945_sysfs_entries
[] = {
7805 &dev_attr_antenna
.attr
,
7806 &dev_attr_channels
.attr
,
7807 &dev_attr_dump_errors
.attr
,
7808 &dev_attr_dump_events
.attr
,
7809 &dev_attr_flags
.attr
,
7810 &dev_attr_filter_flags
.attr
,
7811 #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT
7812 &dev_attr_measurement
.attr
,
7814 &dev_attr_power_level
.attr
,
7815 &dev_attr_retry_rate
.attr
,
7816 &dev_attr_rs_window
.attr
,
7817 &dev_attr_statistics
.attr
,
7818 &dev_attr_status
.attr
,
7819 &dev_attr_temperature
.attr
,
7820 &dev_attr_tx_power
.attr
,
7825 static struct attribute_group iwl3945_attribute_group
= {
7826 .name
= NULL
, /* put in device directory */
7827 .attrs
= iwl3945_sysfs_entries
,
7830 static struct ieee80211_ops iwl3945_hw_ops
= {
7831 .tx
= iwl3945_mac_tx
,
7832 .start
= iwl3945_mac_start
,
7833 .stop
= iwl3945_mac_stop
,
7834 .add_interface
= iwl3945_mac_add_interface
,
7835 .remove_interface
= iwl3945_mac_remove_interface
,
7836 .config
= iwl3945_mac_config
,
7837 .config_interface
= iwl3945_mac_config_interface
,
7838 .configure_filter
= iwl3945_configure_filter
,
7839 .set_key
= iwl3945_mac_set_key
,
7840 .get_stats
= iwl3945_mac_get_stats
,
7841 .get_tx_stats
= iwl3945_mac_get_tx_stats
,
7842 .conf_tx
= iwl3945_mac_conf_tx
,
7843 .get_tsf
= iwl3945_mac_get_tsf
,
7844 .reset_tsf
= iwl3945_mac_reset_tsf
,
7845 .hw_scan
= iwl3945_mac_hw_scan
7848 static int iwl3945_pci_probe(struct pci_dev
*pdev
, const struct pci_device_id
*ent
)
7851 struct iwl3945_priv
*priv
;
7852 struct ieee80211_hw
*hw
;
7853 struct iwl_3945_cfg
*cfg
= (struct iwl_3945_cfg
*)(ent
->driver_data
);
7854 unsigned long flags
;
7855 DECLARE_MAC_BUF(mac
);
7857 /* Disabling hardware scan means that mac80211 will perform scans
7858 * "the hard way", rather than using device's scan. */
7859 if (iwl3945_param_disable_hw_scan
) {
7860 IWL_DEBUG_INFO("Disabling hw_scan\n");
7861 iwl3945_hw_ops
.hw_scan
= NULL
;
7864 if ((iwl3945_param_queues_num
> IWL39_MAX_NUM_QUEUES
) ||
7865 (iwl3945_param_queues_num
< IWL_MIN_NUM_QUEUES
)) {
7866 IWL_ERROR("invalid queues_num, should be between %d and %d\n",
7867 IWL_MIN_NUM_QUEUES
, IWL39_MAX_NUM_QUEUES
);
7872 /* mac80211 allocates memory for this device instance, including
7873 * space for this driver's private structure */
7874 hw
= ieee80211_alloc_hw(sizeof(struct iwl3945_priv
), &iwl3945_hw_ops
);
7876 IWL_ERROR("Can not allocate network device\n");
7880 SET_IEEE80211_DEV(hw
, &pdev
->dev
);
7882 hw
->rate_control_algorithm
= "iwl-3945-rs";
7884 IWL_DEBUG_INFO("*** LOAD DRIVER ***\n");
7888 priv
->pci_dev
= pdev
;
7891 /* Select antenna (may be helpful if only one antenna is connected) */
7892 priv
->antenna
= (enum iwl3945_antenna
)iwl3945_param_antenna
;
7893 #ifdef CONFIG_IWL3945_DEBUG
7894 iwl3945_debug_level
= iwl3945_param_debug
;
7895 atomic_set(&priv
->restrict_refcnt
, 0);
7897 priv
->retry_rate
= 1;
7899 priv
->ibss_beacon
= NULL
;
7901 /* Tell mac80211 our characteristics */
7902 hw
->flags
= IEEE80211_HW_SIGNAL_DBM
|
7903 IEEE80211_HW_NOISE_DBM
;
7905 /* 4 EDCA QOS priorities */
7908 spin_lock_init(&priv
->lock
);
7909 spin_lock_init(&priv
->power_data
.lock
);
7910 spin_lock_init(&priv
->sta_lock
);
7911 spin_lock_init(&priv
->hcmd_lock
);
7913 INIT_LIST_HEAD(&priv
->free_frames
);
7915 mutex_init(&priv
->mutex
);
7916 if (pci_enable_device(pdev
)) {
7918 goto out_ieee80211_free_hw
;
7921 pci_set_master(pdev
);
7923 /* Clear the driver's (not device's) station table */
7924 iwl3945_clear_stations_table(priv
);
7926 priv
->data_retry_limit
= -1;
7927 priv
->ieee_channels
= NULL
;
7928 priv
->ieee_rates
= NULL
;
7929 priv
->band
= IEEE80211_BAND_2GHZ
;
7931 err
= pci_set_dma_mask(pdev
, DMA_32BIT_MASK
);
7933 err
= pci_set_consistent_dma_mask(pdev
, DMA_32BIT_MASK
);
7935 printk(KERN_WARNING DRV_NAME
": No suitable DMA available.\n");
7936 goto out_pci_disable_device
;
7939 pci_set_drvdata(pdev
, priv
);
7940 err
= pci_request_regions(pdev
, DRV_NAME
);
7942 goto out_pci_disable_device
;
7944 /* We disable the RETRY_TIMEOUT register (0x41) to keep
7945 * PCI Tx retries from interfering with C3 CPU state */
7946 pci_write_config_byte(pdev
, 0x41, 0x00);
7948 priv
->hw_base
= pci_iomap(pdev
, 0, 0);
7949 if (!priv
->hw_base
) {
7951 goto out_pci_release_regions
;
7954 IWL_DEBUG_INFO("pci_resource_len = 0x%08llx\n",
7955 (unsigned long long) pci_resource_len(pdev
, 0));
7956 IWL_DEBUG_INFO("pci_resource_base = %p\n", priv
->hw_base
);
7958 /* Initialize module parameter values here */
7960 /* Disable radio (SW RF KILL) via parameter when loading driver */
7961 if (iwl3945_param_disable
) {
7962 set_bit(STATUS_RF_KILL_SW
, &priv
->status
);
7963 IWL_DEBUG_INFO("Radio disabled.\n");
7966 priv
->iw_mode
= IEEE80211_IF_TYPE_STA
;
7968 printk(KERN_INFO DRV_NAME
7969 ": Detected Intel Wireless WiFi Link %s\n", priv
->cfg
->name
);
7971 /* Device-specific setup */
7972 if (iwl3945_hw_set_hw_setting(priv
)) {
7973 IWL_ERROR("failed to set hw settings\n");
7977 if (iwl3945_param_qos_enable
)
7978 priv
->qos_data
.qos_enable
= 1;
7980 iwl3945_reset_qos(priv
);
7982 priv
->qos_data
.qos_active
= 0;
7983 priv
->qos_data
.qos_cap
.val
= 0;
7985 iwl3945_set_rxon_channel(priv
, IEEE80211_BAND_2GHZ
, 6);
7986 iwl3945_setup_deferred_work(priv
);
7987 iwl3945_setup_rx_handlers(priv
);
7989 priv
->rates_mask
= IWL_RATES_MASK
;
7990 /* If power management is turned on, default to AC mode */
7991 priv
->power_mode
= IWL_POWER_AC
;
7992 priv
->user_txpower_limit
= IWL_DEFAULT_TX_POWER
;
7994 spin_lock_irqsave(&priv
->lock
, flags
);
7995 iwl3945_disable_interrupts(priv
);
7996 spin_unlock_irqrestore(&priv
->lock
, flags
);
7998 err
= sysfs_create_group(&pdev
->dev
.kobj
, &iwl3945_attribute_group
);
8000 IWL_ERROR("failed to create sysfs device attributes\n");
8001 goto out_release_irq
;
8005 iwl3945_set_bit(priv
, CSR_GIO_CHICKEN_BITS
,
8006 CSR_GIO_CHICKEN_BITS_REG_BIT_DIS_L0S_EXIT_TIMER
);
8008 iwl3945_set_bit(priv
, CSR_GP_CNTRL
, CSR_GP_CNTRL_REG_FLAG_INIT_DONE
);
8009 err
= iwl3945_poll_bit(priv
, CSR_GP_CNTRL
,
8010 CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY
,
8011 CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY
, 25000);
8013 IWL_DEBUG_INFO("Failed to init the card\n");
8014 goto out_remove_sysfs
;
8016 /* Read the EEPROM */
8017 err
= iwl3945_eeprom_init(priv
);
8019 IWL_ERROR("Unable to init EEPROM\n");
8020 goto out_remove_sysfs
;
8022 /* MAC Address location in EEPROM same for 3945/4965 */
8023 get_eeprom_mac(priv
, priv
->mac_addr
);
8024 IWL_DEBUG_INFO("MAC address: %s\n", print_mac(mac
, priv
->mac_addr
));
8025 SET_IEEE80211_PERM_ADDR(priv
->hw
, priv
->mac_addr
);
8027 err
= iwl3945_init_channel_map(priv
);
8029 IWL_ERROR("initializing regulatory failed: %d\n", err
);
8030 goto out_remove_sysfs
;
8033 err
= iwl3945_init_geos(priv
);
8035 IWL_ERROR("initializing geos failed: %d\n", err
);
8036 goto out_free_channel_map
;
8039 err
= ieee80211_register_hw(priv
->hw
);
8041 IWL_ERROR("Failed to register network device (error %d)\n", err
);
8045 priv
->hw
->conf
.beacon_int
= 100;
8046 priv
->mac80211_registered
= 1;
8047 pci_save_state(pdev
);
8048 pci_disable_device(pdev
);
8050 err
= iwl3945_rfkill_init(priv
);
8052 IWL_ERROR("Unable to initialize RFKILL system. "
8053 "Ignoring error: %d\n", err
);
8058 iwl3945_free_geos(priv
);
8059 out_free_channel_map
:
8060 iwl3945_free_channel_map(priv
);
8062 sysfs_remove_group(&pdev
->dev
.kobj
, &iwl3945_attribute_group
);
8065 destroy_workqueue(priv
->workqueue
);
8066 priv
->workqueue
= NULL
;
8067 iwl3945_unset_hw_setting(priv
);
8070 pci_iounmap(pdev
, priv
->hw_base
);
8071 out_pci_release_regions
:
8072 pci_release_regions(pdev
);
8073 out_pci_disable_device
:
8074 pci_disable_device(pdev
);
8075 pci_set_drvdata(pdev
, NULL
);
8076 out_ieee80211_free_hw
:
8077 ieee80211_free_hw(priv
->hw
);
8082 static void __devexit
iwl3945_pci_remove(struct pci_dev
*pdev
)
8084 struct iwl3945_priv
*priv
= pci_get_drvdata(pdev
);
8085 unsigned long flags
;
8090 IWL_DEBUG_INFO("*** UNLOAD DRIVER ***\n");
8092 set_bit(STATUS_EXIT_PENDING
, &priv
->status
);
8096 /* make sure we flush any pending irq or
8097 * tasklet for the driver
8099 spin_lock_irqsave(&priv
->lock
, flags
);
8100 iwl3945_disable_interrupts(priv
);
8101 spin_unlock_irqrestore(&priv
->lock
, flags
);
8103 iwl_synchronize_irq(priv
);
8105 sysfs_remove_group(&pdev
->dev
.kobj
, &iwl3945_attribute_group
);
8107 iwl3945_rfkill_unregister(priv
);
8108 iwl3945_dealloc_ucode_pci(priv
);
8111 iwl3945_rx_queue_free(priv
, &priv
->rxq
);
8112 iwl3945_hw_txq_ctx_free(priv
);
8114 iwl3945_unset_hw_setting(priv
);
8115 iwl3945_clear_stations_table(priv
);
8117 if (priv
->mac80211_registered
) {
8118 ieee80211_unregister_hw(priv
->hw
);
8121 /*netif_stop_queue(dev); */
8122 flush_workqueue(priv
->workqueue
);
8124 /* ieee80211_unregister_hw calls iwl3945_mac_stop, which flushes
8125 * priv->workqueue... so we can't take down the workqueue
8127 destroy_workqueue(priv
->workqueue
);
8128 priv
->workqueue
= NULL
;
8130 pci_iounmap(pdev
, priv
->hw_base
);
8131 pci_release_regions(pdev
);
8132 pci_disable_device(pdev
);
8133 pci_set_drvdata(pdev
, NULL
);
8135 iwl3945_free_channel_map(priv
);
8136 iwl3945_free_geos(priv
);
8138 if (priv
->ibss_beacon
)
8139 dev_kfree_skb(priv
->ibss_beacon
);
8141 ieee80211_free_hw(priv
->hw
);
8146 static int iwl3945_pci_suspend(struct pci_dev
*pdev
, pm_message_t state
)
8148 struct iwl3945_priv
*priv
= pci_get_drvdata(pdev
);
8150 if (priv
->is_open
) {
8151 set_bit(STATUS_IN_SUSPEND
, &priv
->status
);
8152 iwl3945_mac_stop(priv
->hw
);
8156 pci_set_power_state(pdev
, PCI_D3hot
);
8161 static int iwl3945_pci_resume(struct pci_dev
*pdev
)
8163 struct iwl3945_priv
*priv
= pci_get_drvdata(pdev
);
8165 pci_set_power_state(pdev
, PCI_D0
);
8168 iwl3945_mac_start(priv
->hw
);
8170 clear_bit(STATUS_IN_SUSPEND
, &priv
->status
);
8174 #endif /* CONFIG_PM */
8176 /*************** RFKILL FUNCTIONS **********/
8177 #ifdef CONFIG_IWL3945_RFKILL
8178 /* software rf-kill from user */
8179 static int iwl3945_rfkill_soft_rf_kill(void *data
, enum rfkill_state state
)
8181 struct iwl3945_priv
*priv
= data
;
8187 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
8190 IWL_DEBUG_RF_KILL("we recieved soft RFKILL set to state %d\n", state
);
8191 mutex_lock(&priv
->mutex
);
8194 case RFKILL_STATE_UNBLOCKED
:
8195 if (iwl3945_is_rfkill_hw(priv
)) {
8199 iwl3945_radio_kill_sw(priv
, 0);
8201 case RFKILL_STATE_SOFT_BLOCKED
:
8202 iwl3945_radio_kill_sw(priv
, 1);
8205 IWL_WARNING("we recieved unexpected RFKILL state %d\n", state
);
8209 mutex_unlock(&priv
->mutex
);
8214 int iwl3945_rfkill_init(struct iwl3945_priv
*priv
)
8216 struct device
*device
= wiphy_dev(priv
->hw
->wiphy
);
8219 BUG_ON(device
== NULL
);
8221 IWL_DEBUG_RF_KILL("Initializing RFKILL.\n");
8222 priv
->rfkill
= rfkill_allocate(device
, RFKILL_TYPE_WLAN
);
8223 if (!priv
->rfkill
) {
8224 IWL_ERROR("Unable to allocate rfkill device.\n");
8229 priv
->rfkill
->name
= priv
->cfg
->name
;
8230 priv
->rfkill
->data
= priv
;
8231 priv
->rfkill
->state
= RFKILL_STATE_UNBLOCKED
;
8232 priv
->rfkill
->toggle_radio
= iwl3945_rfkill_soft_rf_kill
;
8233 priv
->rfkill
->user_claim_unsupported
= 1;
8235 priv
->rfkill
->dev
.class->suspend
= NULL
;
8236 priv
->rfkill
->dev
.class->resume
= NULL
;
8238 ret
= rfkill_register(priv
->rfkill
);
8240 IWL_ERROR("Unable to register rfkill: %d\n", ret
);
8244 IWL_DEBUG_RF_KILL("RFKILL initialization complete.\n");
8248 if (priv
->rfkill
!= NULL
)
8249 rfkill_free(priv
->rfkill
);
8250 priv
->rfkill
= NULL
;
8253 IWL_DEBUG_RF_KILL("RFKILL initialization complete.\n");
8257 void iwl3945_rfkill_unregister(struct iwl3945_priv
*priv
)
8260 rfkill_unregister(priv
->rfkill
);
8262 priv
->rfkill
= NULL
;
8265 /* set rf-kill to the right state. */
8266 void iwl3945_rfkill_set_hw_state(struct iwl3945_priv
*priv
)
8272 if (iwl3945_is_rfkill_hw(priv
)) {
8273 rfkill_force_state(priv
->rfkill
, RFKILL_STATE_HARD_BLOCKED
);
8277 if (!iwl3945_is_rfkill_sw(priv
))
8278 rfkill_force_state(priv
->rfkill
, RFKILL_STATE_UNBLOCKED
);
8280 rfkill_force_state(priv
->rfkill
, RFKILL_STATE_SOFT_BLOCKED
);
8284 /*****************************************************************************
8286 * driver and module entry point
8288 *****************************************************************************/
8290 static struct pci_driver iwl3945_driver
= {
8292 .id_table
= iwl3945_hw_card_ids
,
8293 .probe
= iwl3945_pci_probe
,
8294 .remove
= __devexit_p(iwl3945_pci_remove
),
8296 .suspend
= iwl3945_pci_suspend
,
8297 .resume
= iwl3945_pci_resume
,
8301 static int __init
iwl3945_init(void)
8305 printk(KERN_INFO DRV_NAME
": " DRV_DESCRIPTION
", " DRV_VERSION
"\n");
8306 printk(KERN_INFO DRV_NAME
": " DRV_COPYRIGHT
"\n");
8308 ret
= iwl3945_rate_control_register();
8310 IWL_ERROR("Unable to register rate control algorithm: %d\n", ret
);
8314 ret
= pci_register_driver(&iwl3945_driver
);
8316 IWL_ERROR("Unable to initialize PCI module\n");
8317 goto error_register
;
8319 #ifdef CONFIG_IWL3945_DEBUG
8320 ret
= driver_create_file(&iwl3945_driver
.driver
, &driver_attr_debug_level
);
8322 IWL_ERROR("Unable to create driver sysfs file\n");
8329 #ifdef CONFIG_IWL3945_DEBUG
8331 pci_unregister_driver(&iwl3945_driver
);
8334 iwl3945_rate_control_unregister();
8338 static void __exit
iwl3945_exit(void)
8340 #ifdef CONFIG_IWL3945_DEBUG
8341 driver_remove_file(&iwl3945_driver
.driver
, &driver_attr_debug_level
);
8343 pci_unregister_driver(&iwl3945_driver
);
8344 iwl3945_rate_control_unregister();
8347 module_param_named(antenna
, iwl3945_param_antenna
, int, 0444);
8348 MODULE_PARM_DESC(antenna
, "select antenna (1=Main, 2=Aux, default 0 [both])");
8349 module_param_named(disable
, iwl3945_param_disable
, int, 0444);
8350 MODULE_PARM_DESC(disable
, "manually disable the radio (default 0 [radio on])");
8351 module_param_named(hwcrypto
, iwl3945_param_hwcrypto
, int, 0444);
8352 MODULE_PARM_DESC(hwcrypto
,
8353 "using hardware crypto engine (default 0 [software])\n");
8354 module_param_named(debug
, iwl3945_param_debug
, int, 0444);
8355 MODULE_PARM_DESC(debug
, "debug output mask");
8356 module_param_named(disable_hw_scan
, iwl3945_param_disable_hw_scan
, int, 0444);
8357 MODULE_PARM_DESC(disable_hw_scan
, "disable hardware scanning (default 0)");
8359 module_param_named(queues_num
, iwl3945_param_queues_num
, int, 0444);
8360 MODULE_PARM_DESC(queues_num
, "number of hw queues.");
8363 module_param_named(qos_enable
, iwl3945_param_qos_enable
, int, 0444);
8364 MODULE_PARM_DESC(qos_enable
, "enable all QoS functionality");
8366 module_exit(iwl3945_exit
);
8367 module_init(iwl3945_init
);