1 /******************************************************************************
3 * Copyright(c) 2003 - 2007 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>
50 #include "iwl-helpers.h"
52 #ifdef CONFIG_IWL3945_DEBUG
53 u32 iwl3945_debug_level
;
56 static int iwl3945_tx_queue_update_write_ptr(struct iwl3945_priv
*priv
,
57 struct iwl3945_tx_queue
*txq
);
59 /******************************************************************************
63 ******************************************************************************/
65 /* module parameters */
66 static int iwl3945_param_disable_hw_scan
; /* def: 0 = use 3945's h/w scan */
67 static int iwl3945_param_debug
; /* def: 0 = minimal debug log messages */
68 static int iwl3945_param_disable
; /* def: 0 = enable radio */
69 static int iwl3945_param_antenna
; /* def: 0 = both antennas (use diversity) */
70 int iwl3945_param_hwcrypto
; /* def: 0 = use software encryption */
71 static int iwl3945_param_qos_enable
= 1; /* def: 1 = use quality of service */
72 int iwl3945_param_queues_num
= IWL_MAX_NUM_QUEUES
; /* def: 8 Tx queues */
75 * module name, copyright, version, etc.
76 * NOTE: DRV_NAME is defined in iwlwifi.h for use by iwl-debug.h and printk
79 #define DRV_DESCRIPTION \
80 "Intel(R) PRO/Wireless 3945ABG/BG Network Connection driver for Linux"
82 #ifdef CONFIG_IWL3945_DEBUG
88 #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT
94 #define IWLWIFI_VERSION "1.2.22k" VD VS
95 #define DRV_COPYRIGHT "Copyright(c) 2003-2007 Intel Corporation"
96 #define DRV_VERSION IWLWIFI_VERSION
98 /* Change firmware file name, using "-" and incrementing number,
99 * *only* when uCode interface or architecture changes so that it
100 * is not compatible with earlier drivers.
101 * This number will also appear in << 8 position of 1st dword of uCode file */
102 #define IWL3945_UCODE_API "-1"
104 MODULE_DESCRIPTION(DRV_DESCRIPTION
);
105 MODULE_VERSION(DRV_VERSION
);
106 MODULE_AUTHOR(DRV_COPYRIGHT
);
107 MODULE_LICENSE("GPL");
109 static __le16
*ieee80211_get_qos_ctrl(struct ieee80211_hdr
*hdr
)
111 u16 fc
= le16_to_cpu(hdr
->frame_control
);
112 int hdr_len
= ieee80211_get_hdrlen(fc
);
114 if ((fc
& 0x00cc) == (IEEE80211_STYPE_QOS_DATA
| IEEE80211_FTYPE_DATA
))
115 return (__le16
*) ((u8
*) hdr
+ hdr_len
- QOS_CONTROL_LEN
);
119 static const struct ieee80211_hw_mode
*iwl3945_get_hw_mode(
120 struct iwl3945_priv
*priv
, int mode
)
124 for (i
= 0; i
< 3; i
++)
125 if (priv
->modes
[i
].mode
== mode
)
126 return &priv
->modes
[i
];
131 static int iwl3945_is_empty_essid(const char *essid
, int essid_len
)
133 /* Single white space is for Linksys APs */
134 if (essid_len
== 1 && essid
[0] == ' ')
137 /* Otherwise, if the entire essid is 0, we assume it is hidden */
140 if (essid
[essid_len
] != '\0')
147 static const char *iwl3945_escape_essid(const char *essid
, u8 essid_len
)
149 static char escaped
[IW_ESSID_MAX_SIZE
* 2 + 1];
150 const char *s
= essid
;
153 if (iwl3945_is_empty_essid(essid
, essid_len
)) {
154 memcpy(escaped
, "<hidden>", sizeof("<hidden>"));
158 essid_len
= min(essid_len
, (u8
) IW_ESSID_MAX_SIZE
);
159 while (essid_len
--) {
171 static void iwl3945_print_hex_dump(int level
, void *p
, u32 len
)
173 #ifdef CONFIG_IWL3945_DEBUG
174 if (!(iwl3945_debug_level
& level
))
177 print_hex_dump(KERN_DEBUG
, "iwl data: ", DUMP_PREFIX_OFFSET
, 16, 1,
182 /*************** DMA-QUEUE-GENERAL-FUNCTIONS *****
185 * Theory of operation
187 * A Tx or Rx queue resides in host DRAM, and is comprised of a circular buffer
188 * of buffer descriptors, each of which points to one or more data buffers for
189 * the device to read from or fill. Driver and device exchange status of each
190 * queue via "read" and "write" pointers. Driver keeps minimum of 2 empty
191 * entries in each circular buffer, to protect against confusing empty and full
194 * The device reads or writes the data in the queues via the device's several
195 * DMA/FIFO channels. Each queue is mapped to a single DMA channel.
197 * For Tx queue, there are low mark and high mark limits. If, after queuing
198 * the packet for Tx, free space become < low mark, Tx queue stopped. When
199 * reclaiming packets (on 'tx done IRQ), if free space become > high mark,
202 * The 3945 operates with six queues: One receive queue, one transmit queue
203 * (#4) for sending commands to the device firmware, and four transmit queues
204 * (#0-3) for data tx via EDCA. An additional 2 HCCA queues are unused.
205 ***************************************************/
207 static int iwl3945_queue_space(const struct iwl3945_queue
*q
)
209 int s
= q
->read_ptr
- q
->write_ptr
;
211 if (q
->read_ptr
> q
->write_ptr
)
216 /* keep some reserve to not confuse empty and full situations */
224 * iwl3945_queue_inc_wrap - increment queue index, wrap back to beginning
225 * @index -- current index
226 * @n_bd -- total number of entries in queue (must be power of 2)
228 static inline int iwl3945_queue_inc_wrap(int index
, int n_bd
)
230 return ++index
& (n_bd
- 1);
234 * iwl3945_queue_dec_wrap - increment queue index, wrap back to end
235 * @index -- current index
236 * @n_bd -- total number of entries in queue (must be power of 2)
238 static inline int iwl3945_queue_dec_wrap(int index
, int n_bd
)
240 return --index
& (n_bd
- 1);
243 static inline int x2_queue_used(const struct iwl3945_queue
*q
, int i
)
245 return q
->write_ptr
> q
->read_ptr
?
246 (i
>= q
->read_ptr
&& i
< q
->write_ptr
) :
247 !(i
< q
->read_ptr
&& i
>= q
->write_ptr
);
250 static inline u8
get_cmd_index(struct iwl3945_queue
*q
, u32 index
, int is_huge
)
252 /* This is for scan command, the big buffer at end of command array */
254 return q
->n_window
; /* must be power of 2 */
256 /* Otherwise, use normal size buffers */
257 return index
& (q
->n_window
- 1);
261 * iwl3945_queue_init - Initialize queue's high/low-water and read/write indexes
263 static int iwl3945_queue_init(struct iwl3945_priv
*priv
, struct iwl3945_queue
*q
,
264 int count
, int slots_num
, u32 id
)
267 q
->n_window
= slots_num
;
270 /* count must be power-of-two size, otherwise iwl3945_queue_inc_wrap
271 * and iwl3945_queue_dec_wrap are broken. */
272 BUG_ON(!is_power_of_2(count
));
274 /* slots_num must be power-of-two size, otherwise
275 * get_cmd_index is broken. */
276 BUG_ON(!is_power_of_2(slots_num
));
278 q
->low_mark
= q
->n_window
/ 4;
282 q
->high_mark
= q
->n_window
/ 8;
283 if (q
->high_mark
< 2)
286 q
->write_ptr
= q
->read_ptr
= 0;
292 * iwl3945_tx_queue_alloc - Alloc driver data and TFD CB for one Tx/cmd queue
294 static int iwl3945_tx_queue_alloc(struct iwl3945_priv
*priv
,
295 struct iwl3945_tx_queue
*txq
, u32 id
)
297 struct pci_dev
*dev
= priv
->pci_dev
;
299 /* Driver private data, only for Tx (not command) queues,
300 * not shared with device. */
301 if (id
!= IWL_CMD_QUEUE_NUM
) {
302 txq
->txb
= kmalloc(sizeof(txq
->txb
[0]) *
303 TFD_QUEUE_SIZE_MAX
, GFP_KERNEL
);
305 IWL_ERROR("kmalloc for auxiliary BD "
306 "structures failed\n");
312 /* Circular buffer of transmit frame descriptors (TFDs),
313 * shared with device */
314 txq
->bd
= pci_alloc_consistent(dev
,
315 sizeof(txq
->bd
[0]) * TFD_QUEUE_SIZE_MAX
,
319 IWL_ERROR("pci_alloc_consistent(%zd) failed\n",
320 sizeof(txq
->bd
[0]) * TFD_QUEUE_SIZE_MAX
);
337 * iwl3945_tx_queue_init - Allocate and initialize one tx/cmd queue
339 int iwl3945_tx_queue_init(struct iwl3945_priv
*priv
,
340 struct iwl3945_tx_queue
*txq
, int slots_num
, u32 txq_id
)
342 struct pci_dev
*dev
= priv
->pci_dev
;
347 * Alloc buffer array for commands (Tx or other types of commands).
348 * For the command queue (#4), allocate command space + one big
349 * command for scan, since scan command is very huge; the system will
350 * not have two scans at the same time, so only one is needed.
351 * For data Tx queues (all other queues), no super-size command
354 len
= sizeof(struct iwl3945_cmd
) * slots_num
;
355 if (txq_id
== IWL_CMD_QUEUE_NUM
)
356 len
+= IWL_MAX_SCAN_SIZE
;
357 txq
->cmd
= pci_alloc_consistent(dev
, len
, &txq
->dma_addr_cmd
);
361 /* Alloc driver data array and TFD circular buffer */
362 rc
= iwl3945_tx_queue_alloc(priv
, txq
, txq_id
);
364 pci_free_consistent(dev
, len
, txq
->cmd
, txq
->dma_addr_cmd
);
368 txq
->need_update
= 0;
370 /* TFD_QUEUE_SIZE_MAX must be power-of-two size, otherwise
371 * iwl3945_queue_inc_wrap and iwl3945_queue_dec_wrap are broken. */
372 BUILD_BUG_ON(TFD_QUEUE_SIZE_MAX
& (TFD_QUEUE_SIZE_MAX
- 1));
374 /* Initialize queue high/low-water, head/tail indexes */
375 iwl3945_queue_init(priv
, &txq
->q
, TFD_QUEUE_SIZE_MAX
, slots_num
, txq_id
);
377 /* Tell device where to find queue, enable DMA channel. */
378 iwl3945_hw_tx_queue_init(priv
, txq
);
384 * iwl3945_tx_queue_free - Deallocate DMA queue.
385 * @txq: Transmit queue to deallocate.
387 * Empty queue by removing and destroying all BD's.
389 * 0-fill, but do not free "txq" descriptor structure.
391 void iwl3945_tx_queue_free(struct iwl3945_priv
*priv
, struct iwl3945_tx_queue
*txq
)
393 struct iwl3945_queue
*q
= &txq
->q
;
394 struct pci_dev
*dev
= priv
->pci_dev
;
400 /* first, empty all BD's */
401 for (; q
->write_ptr
!= q
->read_ptr
;
402 q
->read_ptr
= iwl3945_queue_inc_wrap(q
->read_ptr
, q
->n_bd
))
403 iwl3945_hw_txq_free_tfd(priv
, txq
);
405 len
= sizeof(struct iwl3945_cmd
) * q
->n_window
;
406 if (q
->id
== IWL_CMD_QUEUE_NUM
)
407 len
+= IWL_MAX_SCAN_SIZE
;
409 /* De-alloc array of command/tx buffers */
410 pci_free_consistent(dev
, len
, txq
->cmd
, txq
->dma_addr_cmd
);
412 /* De-alloc circular buffer of TFDs */
414 pci_free_consistent(dev
, sizeof(struct iwl3945_tfd_frame
) *
415 txq
->q
.n_bd
, txq
->bd
, txq
->q
.dma_addr
);
417 /* De-alloc array of per-TFD driver data */
423 /* 0-fill queue descriptor structure */
424 memset(txq
, 0, sizeof(*txq
));
427 const u8 iwl3945_broadcast_addr
[ETH_ALEN
] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
429 /*************** STATION TABLE MANAGEMENT ****
430 * mac80211 should be examined to determine if sta_info is duplicating
431 * the functionality provided here
434 /**************************************************************/
435 #if 0 /* temporary disable till we add real remove station */
437 * iwl3945_remove_station - Remove driver's knowledge of station.
439 * NOTE: This does not remove station from device's station table.
441 static u8
iwl3945_remove_station(struct iwl3945_priv
*priv
, const u8
*addr
, int is_ap
)
443 int index
= IWL_INVALID_STATION
;
447 spin_lock_irqsave(&priv
->sta_lock
, flags
);
451 else if (is_broadcast_ether_addr(addr
))
452 index
= priv
->hw_setting
.bcast_sta_id
;
454 for (i
= IWL_STA_ID
; i
< priv
->hw_setting
.max_stations
; i
++)
455 if (priv
->stations
[i
].used
&&
456 !compare_ether_addr(priv
->stations
[i
].sta
.sta
.addr
,
462 if (unlikely(index
== IWL_INVALID_STATION
))
465 if (priv
->stations
[index
].used
) {
466 priv
->stations
[index
].used
= 0;
467 priv
->num_stations
--;
470 BUG_ON(priv
->num_stations
< 0);
473 spin_unlock_irqrestore(&priv
->sta_lock
, flags
);
479 * iwl3945_clear_stations_table - Clear the driver's station table
481 * NOTE: This does not clear or otherwise alter the device's station table.
483 static void iwl3945_clear_stations_table(struct iwl3945_priv
*priv
)
487 spin_lock_irqsave(&priv
->sta_lock
, flags
);
489 priv
->num_stations
= 0;
490 memset(priv
->stations
, 0, sizeof(priv
->stations
));
492 spin_unlock_irqrestore(&priv
->sta_lock
, flags
);
496 * iwl3945_add_station - Add station to station tables in driver and device
498 u8
iwl3945_add_station(struct iwl3945_priv
*priv
, const u8
*addr
, int is_ap
, u8 flags
)
501 int index
= IWL_INVALID_STATION
;
502 struct iwl3945_station_entry
*station
;
503 unsigned long flags_spin
;
504 DECLARE_MAC_BUF(mac
);
507 spin_lock_irqsave(&priv
->sta_lock
, flags_spin
);
510 else if (is_broadcast_ether_addr(addr
))
511 index
= priv
->hw_setting
.bcast_sta_id
;
513 for (i
= IWL_STA_ID
; i
< priv
->hw_setting
.max_stations
; i
++) {
514 if (!compare_ether_addr(priv
->stations
[i
].sta
.sta
.addr
,
520 if (!priv
->stations
[i
].used
&&
521 index
== IWL_INVALID_STATION
)
525 /* These two conditions has the same outcome but keep them separate
526 since they have different meaning */
527 if (unlikely(index
== IWL_INVALID_STATION
)) {
528 spin_unlock_irqrestore(&priv
->sta_lock
, flags_spin
);
532 if (priv
->stations
[index
].used
&&
533 !compare_ether_addr(priv
->stations
[index
].sta
.sta
.addr
, addr
)) {
534 spin_unlock_irqrestore(&priv
->sta_lock
, flags_spin
);
538 IWL_DEBUG_ASSOC("Add STA ID %d: %s\n", index
, print_mac(mac
, addr
));
539 station
= &priv
->stations
[index
];
541 priv
->num_stations
++;
543 /* Set up the REPLY_ADD_STA command to send to device */
544 memset(&station
->sta
, 0, sizeof(struct iwl3945_addsta_cmd
));
545 memcpy(station
->sta
.sta
.addr
, addr
, ETH_ALEN
);
546 station
->sta
.mode
= 0;
547 station
->sta
.sta
.sta_id
= index
;
548 station
->sta
.station_flags
= 0;
550 if (priv
->phymode
== MODE_IEEE80211A
)
551 rate
= IWL_RATE_6M_PLCP
;
553 rate
= IWL_RATE_1M_PLCP
;
555 /* Turn on both antennas for the station... */
556 station
->sta
.rate_n_flags
=
557 iwl3945_hw_set_rate_n_flags(rate
, RATE_MCS_ANT_AB_MSK
);
558 station
->current_rate
.rate_n_flags
=
559 le16_to_cpu(station
->sta
.rate_n_flags
);
561 spin_unlock_irqrestore(&priv
->sta_lock
, flags_spin
);
563 /* Add station to device's station table */
564 iwl3945_send_add_station(priv
, &station
->sta
, flags
);
569 /*************** DRIVER STATUS FUNCTIONS *****/
571 static inline int iwl3945_is_ready(struct iwl3945_priv
*priv
)
573 /* The adapter is 'ready' if READY and GEO_CONFIGURED bits are
574 * set but EXIT_PENDING is not */
575 return test_bit(STATUS_READY
, &priv
->status
) &&
576 test_bit(STATUS_GEO_CONFIGURED
, &priv
->status
) &&
577 !test_bit(STATUS_EXIT_PENDING
, &priv
->status
);
580 static inline int iwl3945_is_alive(struct iwl3945_priv
*priv
)
582 return test_bit(STATUS_ALIVE
, &priv
->status
);
585 static inline int iwl3945_is_init(struct iwl3945_priv
*priv
)
587 return test_bit(STATUS_INIT
, &priv
->status
);
590 static inline int iwl3945_is_rfkill(struct iwl3945_priv
*priv
)
592 return test_bit(STATUS_RF_KILL_HW
, &priv
->status
) ||
593 test_bit(STATUS_RF_KILL_SW
, &priv
->status
);
596 static inline int iwl3945_is_ready_rf(struct iwl3945_priv
*priv
)
599 if (iwl3945_is_rfkill(priv
))
602 return iwl3945_is_ready(priv
);
605 /*************** HOST COMMAND QUEUE FUNCTIONS *****/
607 #define IWL_CMD(x) case x : return #x
609 static const char *get_cmd_string(u8 cmd
)
612 IWL_CMD(REPLY_ALIVE
);
613 IWL_CMD(REPLY_ERROR
);
615 IWL_CMD(REPLY_RXON_ASSOC
);
616 IWL_CMD(REPLY_QOS_PARAM
);
617 IWL_CMD(REPLY_RXON_TIMING
);
618 IWL_CMD(REPLY_ADD_STA
);
619 IWL_CMD(REPLY_REMOVE_STA
);
620 IWL_CMD(REPLY_REMOVE_ALL_STA
);
621 IWL_CMD(REPLY_3945_RX
);
623 IWL_CMD(REPLY_RATE_SCALE
);
624 IWL_CMD(REPLY_LEDS_CMD
);
625 IWL_CMD(REPLY_TX_LINK_QUALITY_CMD
);
626 IWL_CMD(RADAR_NOTIFICATION
);
627 IWL_CMD(REPLY_QUIET_CMD
);
628 IWL_CMD(REPLY_CHANNEL_SWITCH
);
629 IWL_CMD(CHANNEL_SWITCH_NOTIFICATION
);
630 IWL_CMD(REPLY_SPECTRUM_MEASUREMENT_CMD
);
631 IWL_CMD(SPECTRUM_MEASURE_NOTIFICATION
);
632 IWL_CMD(POWER_TABLE_CMD
);
633 IWL_CMD(PM_SLEEP_NOTIFICATION
);
634 IWL_CMD(PM_DEBUG_STATISTIC_NOTIFIC
);
635 IWL_CMD(REPLY_SCAN_CMD
);
636 IWL_CMD(REPLY_SCAN_ABORT_CMD
);
637 IWL_CMD(SCAN_START_NOTIFICATION
);
638 IWL_CMD(SCAN_RESULTS_NOTIFICATION
);
639 IWL_CMD(SCAN_COMPLETE_NOTIFICATION
);
640 IWL_CMD(BEACON_NOTIFICATION
);
641 IWL_CMD(REPLY_TX_BEACON
);
642 IWL_CMD(WHO_IS_AWAKE_NOTIFICATION
);
643 IWL_CMD(QUIET_NOTIFICATION
);
644 IWL_CMD(REPLY_TX_PWR_TABLE_CMD
);
645 IWL_CMD(MEASURE_ABORT_NOTIFICATION
);
646 IWL_CMD(REPLY_BT_CONFIG
);
647 IWL_CMD(REPLY_STATISTICS_CMD
);
648 IWL_CMD(STATISTICS_NOTIFICATION
);
649 IWL_CMD(REPLY_CARD_STATE_CMD
);
650 IWL_CMD(CARD_STATE_NOTIFICATION
);
651 IWL_CMD(MISSED_BEACONS_NOTIFICATION
);
658 #define HOST_COMPLETE_TIMEOUT (HZ / 2)
661 * iwl3945_enqueue_hcmd - enqueue a uCode command
662 * @priv: device private data point
663 * @cmd: a point to the ucode command structure
665 * The function returns < 0 values to indicate the operation is
666 * failed. On success, it turns the index (> 0) of command in the
669 static int iwl3945_enqueue_hcmd(struct iwl3945_priv
*priv
, struct iwl3945_host_cmd
*cmd
)
671 struct iwl3945_tx_queue
*txq
= &priv
->txq
[IWL_CMD_QUEUE_NUM
];
672 struct iwl3945_queue
*q
= &txq
->q
;
673 struct iwl3945_tfd_frame
*tfd
;
675 struct iwl3945_cmd
*out_cmd
;
677 u16 fix_size
= (u16
)(cmd
->len
+ sizeof(out_cmd
->hdr
));
678 dma_addr_t phys_addr
;
684 /* If any of the command structures end up being larger than
685 * the TFD_MAX_PAYLOAD_SIZE, and it sent as a 'small' command then
686 * we will need to increase the size of the TFD entries */
687 BUG_ON((fix_size
> TFD_MAX_PAYLOAD_SIZE
) &&
688 !(cmd
->meta
.flags
& CMD_SIZE_HUGE
));
690 if (iwl3945_queue_space(q
) < ((cmd
->meta
.flags
& CMD_ASYNC
) ? 2 : 1)) {
691 IWL_ERROR("No space for Tx\n");
695 spin_lock_irqsave(&priv
->hcmd_lock
, flags
);
697 tfd
= &txq
->bd
[q
->write_ptr
];
698 memset(tfd
, 0, sizeof(*tfd
));
700 control_flags
= (u32
*) tfd
;
702 idx
= get_cmd_index(q
, q
->write_ptr
, cmd
->meta
.flags
& CMD_SIZE_HUGE
);
703 out_cmd
= &txq
->cmd
[idx
];
705 out_cmd
->hdr
.cmd
= cmd
->id
;
706 memcpy(&out_cmd
->meta
, &cmd
->meta
, sizeof(cmd
->meta
));
707 memcpy(&out_cmd
->cmd
.payload
, cmd
->data
, cmd
->len
);
709 /* At this point, the out_cmd now has all of the incoming cmd
712 out_cmd
->hdr
.flags
= 0;
713 out_cmd
->hdr
.sequence
= cpu_to_le16(QUEUE_TO_SEQ(IWL_CMD_QUEUE_NUM
) |
714 INDEX_TO_SEQ(q
->write_ptr
));
715 if (out_cmd
->meta
.flags
& CMD_SIZE_HUGE
)
716 out_cmd
->hdr
.sequence
|= cpu_to_le16(SEQ_HUGE_FRAME
);
718 phys_addr
= txq
->dma_addr_cmd
+ sizeof(txq
->cmd
[0]) * idx
+
719 offsetof(struct iwl3945_cmd
, hdr
);
720 iwl3945_hw_txq_attach_buf_to_tfd(priv
, tfd
, phys_addr
, fix_size
);
722 pad
= U32_PAD(cmd
->len
);
723 count
= TFD_CTL_COUNT_GET(*control_flags
);
724 *control_flags
= TFD_CTL_COUNT_SET(count
) | TFD_CTL_PAD_SET(pad
);
726 IWL_DEBUG_HC("Sending command %s (#%x), seq: 0x%04X, "
727 "%d bytes at %d[%d]:%d\n",
728 get_cmd_string(out_cmd
->hdr
.cmd
),
729 out_cmd
->hdr
.cmd
, le16_to_cpu(out_cmd
->hdr
.sequence
),
730 fix_size
, q
->write_ptr
, idx
, IWL_CMD_QUEUE_NUM
);
732 txq
->need_update
= 1;
734 /* Increment and update queue's write index */
735 q
->write_ptr
= iwl3945_queue_inc_wrap(q
->write_ptr
, q
->n_bd
);
736 ret
= iwl3945_tx_queue_update_write_ptr(priv
, txq
);
738 spin_unlock_irqrestore(&priv
->hcmd_lock
, flags
);
739 return ret
? ret
: idx
;
742 static int iwl3945_send_cmd_async(struct iwl3945_priv
*priv
, struct iwl3945_host_cmd
*cmd
)
746 BUG_ON(!(cmd
->meta
.flags
& CMD_ASYNC
));
748 /* An asynchronous command can not expect an SKB to be set. */
749 BUG_ON(cmd
->meta
.flags
& CMD_WANT_SKB
);
751 /* An asynchronous command MUST have a callback. */
752 BUG_ON(!cmd
->meta
.u
.callback
);
754 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
757 ret
= iwl3945_enqueue_hcmd(priv
, cmd
);
759 IWL_ERROR("Error sending %s: iwl3945_enqueue_hcmd failed: %d\n",
760 get_cmd_string(cmd
->id
), ret
);
766 static int iwl3945_send_cmd_sync(struct iwl3945_priv
*priv
, struct iwl3945_host_cmd
*cmd
)
770 static atomic_t entry
= ATOMIC_INIT(0); /* reentrance protection */
772 BUG_ON(cmd
->meta
.flags
& CMD_ASYNC
);
774 /* A synchronous command can not have a callback set. */
775 BUG_ON(cmd
->meta
.u
.callback
!= NULL
);
777 if (atomic_xchg(&entry
, 1)) {
778 IWL_ERROR("Error sending %s: Already sending a host command\n",
779 get_cmd_string(cmd
->id
));
783 set_bit(STATUS_HCMD_ACTIVE
, &priv
->status
);
785 if (cmd
->meta
.flags
& CMD_WANT_SKB
)
786 cmd
->meta
.source
= &cmd
->meta
;
788 cmd_idx
= iwl3945_enqueue_hcmd(priv
, cmd
);
791 IWL_ERROR("Error sending %s: iwl3945_enqueue_hcmd failed: %d\n",
792 get_cmd_string(cmd
->id
), ret
);
796 ret
= wait_event_interruptible_timeout(priv
->wait_command_queue
,
797 !test_bit(STATUS_HCMD_ACTIVE
, &priv
->status
),
798 HOST_COMPLETE_TIMEOUT
);
800 if (test_bit(STATUS_HCMD_ACTIVE
, &priv
->status
)) {
801 IWL_ERROR("Error sending %s: time out after %dms.\n",
802 get_cmd_string(cmd
->id
),
803 jiffies_to_msecs(HOST_COMPLETE_TIMEOUT
));
805 clear_bit(STATUS_HCMD_ACTIVE
, &priv
->status
);
811 if (test_bit(STATUS_RF_KILL_HW
, &priv
->status
)) {
812 IWL_DEBUG_INFO("Command %s aborted: RF KILL Switch\n",
813 get_cmd_string(cmd
->id
));
817 if (test_bit(STATUS_FW_ERROR
, &priv
->status
)) {
818 IWL_DEBUG_INFO("Command %s failed: FW Error\n",
819 get_cmd_string(cmd
->id
));
823 if ((cmd
->meta
.flags
& CMD_WANT_SKB
) && !cmd
->meta
.u
.skb
) {
824 IWL_ERROR("Error: Response NULL in '%s'\n",
825 get_cmd_string(cmd
->id
));
834 if (cmd
->meta
.flags
& CMD_WANT_SKB
) {
835 struct iwl3945_cmd
*qcmd
;
837 /* Cancel the CMD_WANT_SKB flag for the cmd in the
838 * TX cmd queue. Otherwise in case the cmd comes
839 * in later, it will possibly set an invalid
840 * address (cmd->meta.source). */
841 qcmd
= &priv
->txq
[IWL_CMD_QUEUE_NUM
].cmd
[cmd_idx
];
842 qcmd
->meta
.flags
&= ~CMD_WANT_SKB
;
845 if (cmd
->meta
.u
.skb
) {
846 dev_kfree_skb_any(cmd
->meta
.u
.skb
);
847 cmd
->meta
.u
.skb
= NULL
;
850 atomic_set(&entry
, 0);
854 int iwl3945_send_cmd(struct iwl3945_priv
*priv
, struct iwl3945_host_cmd
*cmd
)
856 if (cmd
->meta
.flags
& CMD_ASYNC
)
857 return iwl3945_send_cmd_async(priv
, cmd
);
859 return iwl3945_send_cmd_sync(priv
, cmd
);
862 int iwl3945_send_cmd_pdu(struct iwl3945_priv
*priv
, u8 id
, u16 len
, const void *data
)
864 struct iwl3945_host_cmd cmd
= {
870 return iwl3945_send_cmd_sync(priv
, &cmd
);
873 static int __must_check
iwl3945_send_cmd_u32(struct iwl3945_priv
*priv
, u8 id
, u32 val
)
875 struct iwl3945_host_cmd cmd
= {
881 return iwl3945_send_cmd_sync(priv
, &cmd
);
884 int iwl3945_send_statistics_request(struct iwl3945_priv
*priv
)
886 return iwl3945_send_cmd_u32(priv
, REPLY_STATISTICS_CMD
, 0);
890 * iwl3945_set_rxon_channel - Set the phymode and channel values in staging RXON
891 * @phymode: MODE_IEEE80211A sets to 5.2GHz; all else set to 2.4GHz
892 * @channel: Any channel valid for the requested phymode
894 * In addition to setting the staging RXON, priv->phymode is also set.
896 * NOTE: Does not commit to the hardware; it sets appropriate bit fields
897 * in the staging RXON flag structure based on the phymode
899 static int iwl3945_set_rxon_channel(struct iwl3945_priv
*priv
, u8 phymode
, u16 channel
)
901 if (!iwl3945_get_channel_info(priv
, phymode
, channel
)) {
902 IWL_DEBUG_INFO("Could not set channel to %d [%d]\n",
907 if ((le16_to_cpu(priv
->staging_rxon
.channel
) == channel
) &&
908 (priv
->phymode
== phymode
))
911 priv
->staging_rxon
.channel
= cpu_to_le16(channel
);
912 if (phymode
== MODE_IEEE80211A
)
913 priv
->staging_rxon
.flags
&= ~RXON_FLG_BAND_24G_MSK
;
915 priv
->staging_rxon
.flags
|= RXON_FLG_BAND_24G_MSK
;
917 priv
->phymode
= phymode
;
919 IWL_DEBUG_INFO("Staging channel set to %d [%d]\n", channel
, phymode
);
925 * iwl3945_check_rxon_cmd - validate RXON structure is valid
927 * NOTE: This is really only useful during development and can eventually
928 * be #ifdef'd out once the driver is stable and folks aren't actively
931 static int iwl3945_check_rxon_cmd(struct iwl3945_rxon_cmd
*rxon
)
936 if (rxon
->flags
& RXON_FLG_BAND_24G_MSK
) {
937 error
|= le32_to_cpu(rxon
->flags
&
938 (RXON_FLG_TGJ_NARROW_BAND_MSK
|
939 RXON_FLG_RADAR_DETECT_MSK
));
941 IWL_WARNING("check 24G fields %d | %d\n",
944 error
|= (rxon
->flags
& RXON_FLG_SHORT_SLOT_MSK
) ?
945 0 : le32_to_cpu(RXON_FLG_SHORT_SLOT_MSK
);
947 IWL_WARNING("check 52 fields %d | %d\n",
949 error
|= le32_to_cpu(rxon
->flags
& RXON_FLG_CCK_MSK
);
951 IWL_WARNING("check 52 CCK %d | %d\n",
954 error
|= (rxon
->node_addr
[0] | rxon
->bssid_addr
[0]) & 0x1;
956 IWL_WARNING("check mac addr %d | %d\n", counter
++, error
);
958 /* make sure basic rates 6Mbps and 1Mbps are supported */
959 error
|= (((rxon
->ofdm_basic_rates
& IWL_RATE_6M_MASK
) == 0) &&
960 ((rxon
->cck_basic_rates
& IWL_RATE_1M_MASK
) == 0));
962 IWL_WARNING("check basic rate %d | %d\n", counter
++, error
);
964 error
|= (le16_to_cpu(rxon
->assoc_id
) > 2007);
966 IWL_WARNING("check assoc id %d | %d\n", counter
++, error
);
968 error
|= ((rxon
->flags
& (RXON_FLG_CCK_MSK
| RXON_FLG_SHORT_SLOT_MSK
))
969 == (RXON_FLG_CCK_MSK
| RXON_FLG_SHORT_SLOT_MSK
));
971 IWL_WARNING("check CCK and short slot %d | %d\n",
974 error
|= ((rxon
->flags
& (RXON_FLG_CCK_MSK
| RXON_FLG_AUTO_DETECT_MSK
))
975 == (RXON_FLG_CCK_MSK
| RXON_FLG_AUTO_DETECT_MSK
));
977 IWL_WARNING("check CCK & auto detect %d | %d\n",
980 error
|= ((rxon
->flags
& (RXON_FLG_AUTO_DETECT_MSK
|
981 RXON_FLG_TGG_PROTECT_MSK
)) == RXON_FLG_TGG_PROTECT_MSK
);
983 IWL_WARNING("check TGG and auto detect %d | %d\n",
986 if ((rxon
->flags
& RXON_FLG_DIS_DIV_MSK
))
987 error
|= ((rxon
->flags
& (RXON_FLG_ANT_B_MSK
|
988 RXON_FLG_ANT_A_MSK
)) == 0);
990 IWL_WARNING("check antenna %d %d\n", counter
++, error
);
993 IWL_WARNING("Tuning to channel %d\n",
994 le16_to_cpu(rxon
->channel
));
997 IWL_ERROR("Not a valid iwl3945_rxon_assoc_cmd field values\n");
1004 * iwl3945_full_rxon_required - check if full RXON (vs RXON_ASSOC) cmd is needed
1005 * @priv: staging_rxon is compared to active_rxon
1007 * If the RXON structure is changing enough to require a new tune,
1008 * or is clearing the RXON_FILTER_ASSOC_MSK, then return 1 to indicate that
1009 * a new tune (full RXON command, rather than RXON_ASSOC cmd) is required.
1011 static int iwl3945_full_rxon_required(struct iwl3945_priv
*priv
)
1014 /* These items are only settable from the full RXON command */
1015 if (!(priv
->active_rxon
.filter_flags
& RXON_FILTER_ASSOC_MSK
) ||
1016 compare_ether_addr(priv
->staging_rxon
.bssid_addr
,
1017 priv
->active_rxon
.bssid_addr
) ||
1018 compare_ether_addr(priv
->staging_rxon
.node_addr
,
1019 priv
->active_rxon
.node_addr
) ||
1020 compare_ether_addr(priv
->staging_rxon
.wlap_bssid_addr
,
1021 priv
->active_rxon
.wlap_bssid_addr
) ||
1022 (priv
->staging_rxon
.dev_type
!= priv
->active_rxon
.dev_type
) ||
1023 (priv
->staging_rxon
.channel
!= priv
->active_rxon
.channel
) ||
1024 (priv
->staging_rxon
.air_propagation
!=
1025 priv
->active_rxon
.air_propagation
) ||
1026 (priv
->staging_rxon
.assoc_id
!= priv
->active_rxon
.assoc_id
))
1029 /* flags, filter_flags, ofdm_basic_rates, and cck_basic_rates can
1030 * be updated with the RXON_ASSOC command -- however only some
1031 * flag transitions are allowed using RXON_ASSOC */
1033 /* Check if we are not switching bands */
1034 if ((priv
->staging_rxon
.flags
& RXON_FLG_BAND_24G_MSK
) !=
1035 (priv
->active_rxon
.flags
& RXON_FLG_BAND_24G_MSK
))
1038 /* Check if we are switching association toggle */
1039 if ((priv
->staging_rxon
.filter_flags
& RXON_FILTER_ASSOC_MSK
) !=
1040 (priv
->active_rxon
.filter_flags
& RXON_FILTER_ASSOC_MSK
))
1046 static int iwl3945_send_rxon_assoc(struct iwl3945_priv
*priv
)
1049 struct iwl3945_rx_packet
*res
= NULL
;
1050 struct iwl3945_rxon_assoc_cmd rxon_assoc
;
1051 struct iwl3945_host_cmd cmd
= {
1052 .id
= REPLY_RXON_ASSOC
,
1053 .len
= sizeof(rxon_assoc
),
1054 .meta
.flags
= CMD_WANT_SKB
,
1055 .data
= &rxon_assoc
,
1057 const struct iwl3945_rxon_cmd
*rxon1
= &priv
->staging_rxon
;
1058 const struct iwl3945_rxon_cmd
*rxon2
= &priv
->active_rxon
;
1060 if ((rxon1
->flags
== rxon2
->flags
) &&
1061 (rxon1
->filter_flags
== rxon2
->filter_flags
) &&
1062 (rxon1
->cck_basic_rates
== rxon2
->cck_basic_rates
) &&
1063 (rxon1
->ofdm_basic_rates
== rxon2
->ofdm_basic_rates
)) {
1064 IWL_DEBUG_INFO("Using current RXON_ASSOC. Not resending.\n");
1068 rxon_assoc
.flags
= priv
->staging_rxon
.flags
;
1069 rxon_assoc
.filter_flags
= priv
->staging_rxon
.filter_flags
;
1070 rxon_assoc
.ofdm_basic_rates
= priv
->staging_rxon
.ofdm_basic_rates
;
1071 rxon_assoc
.cck_basic_rates
= priv
->staging_rxon
.cck_basic_rates
;
1072 rxon_assoc
.reserved
= 0;
1074 rc
= iwl3945_send_cmd_sync(priv
, &cmd
);
1078 res
= (struct iwl3945_rx_packet
*)cmd
.meta
.u
.skb
->data
;
1079 if (res
->hdr
.flags
& IWL_CMD_FAILED_MSK
) {
1080 IWL_ERROR("Bad return from REPLY_RXON_ASSOC command\n");
1084 priv
->alloc_rxb_skb
--;
1085 dev_kfree_skb_any(cmd
.meta
.u
.skb
);
1091 * iwl3945_commit_rxon - commit staging_rxon to hardware
1093 * The RXON command in staging_rxon is committed to the hardware and
1094 * the active_rxon structure is updated with the new data. This
1095 * function correctly transitions out of the RXON_ASSOC_MSK state if
1096 * a HW tune is required based on the RXON structure changes.
1098 static int iwl3945_commit_rxon(struct iwl3945_priv
*priv
)
1100 /* cast away the const for active_rxon in this function */
1101 struct iwl3945_rxon_cmd
*active_rxon
= (void *)&priv
->active_rxon
;
1103 DECLARE_MAC_BUF(mac
);
1105 if (!iwl3945_is_alive(priv
))
1108 /* always get timestamp with Rx frame */
1109 priv
->staging_rxon
.flags
|= RXON_FLG_TSF2HOST_MSK
;
1111 /* select antenna */
1112 priv
->staging_rxon
.flags
&=
1113 ~(RXON_FLG_DIS_DIV_MSK
| RXON_FLG_ANT_SEL_MSK
);
1114 priv
->staging_rxon
.flags
|= iwl3945_get_antenna_flags(priv
);
1116 rc
= iwl3945_check_rxon_cmd(&priv
->staging_rxon
);
1118 IWL_ERROR("Invalid RXON configuration. Not committing.\n");
1122 /* If we don't need to send a full RXON, we can use
1123 * iwl3945_rxon_assoc_cmd which is used to reconfigure filter
1124 * and other flags for the current radio configuration. */
1125 if (!iwl3945_full_rxon_required(priv
)) {
1126 rc
= iwl3945_send_rxon_assoc(priv
);
1128 IWL_ERROR("Error setting RXON_ASSOC "
1129 "configuration (%d).\n", rc
);
1133 memcpy(active_rxon
, &priv
->staging_rxon
, sizeof(*active_rxon
));
1138 /* If we are currently associated and the new config requires
1139 * an RXON_ASSOC and the new config wants the associated mask enabled,
1140 * we must clear the associated from the active configuration
1141 * before we apply the new config */
1142 if (iwl3945_is_associated(priv
) &&
1143 (priv
->staging_rxon
.filter_flags
& RXON_FILTER_ASSOC_MSK
)) {
1144 IWL_DEBUG_INFO("Toggling associated bit on current RXON\n");
1145 active_rxon
->filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
1147 rc
= iwl3945_send_cmd_pdu(priv
, REPLY_RXON
,
1148 sizeof(struct iwl3945_rxon_cmd
),
1149 &priv
->active_rxon
);
1151 /* If the mask clearing failed then we set
1152 * active_rxon back to what it was previously */
1154 active_rxon
->filter_flags
|= RXON_FILTER_ASSOC_MSK
;
1155 IWL_ERROR("Error clearing ASSOC_MSK on current "
1156 "configuration (%d).\n", rc
);
1161 IWL_DEBUG_INFO("Sending RXON\n"
1162 "* with%s RXON_FILTER_ASSOC_MSK\n"
1165 ((priv
->staging_rxon
.filter_flags
&
1166 RXON_FILTER_ASSOC_MSK
) ? "" : "out"),
1167 le16_to_cpu(priv
->staging_rxon
.channel
),
1168 print_mac(mac
, priv
->staging_rxon
.bssid_addr
));
1170 /* Apply the new configuration */
1171 rc
= iwl3945_send_cmd_pdu(priv
, REPLY_RXON
,
1172 sizeof(struct iwl3945_rxon_cmd
), &priv
->staging_rxon
);
1174 IWL_ERROR("Error setting new configuration (%d).\n", rc
);
1178 memcpy(active_rxon
, &priv
->staging_rxon
, sizeof(*active_rxon
));
1180 iwl3945_clear_stations_table(priv
);
1182 /* If we issue a new RXON command which required a tune then we must
1183 * send a new TXPOWER command or we won't be able to Tx any frames */
1184 rc
= iwl3945_hw_reg_send_txpower(priv
);
1186 IWL_ERROR("Error setting Tx power (%d).\n", rc
);
1190 /* Add the broadcast address so we can send broadcast frames */
1191 if (iwl3945_add_station(priv
, iwl3945_broadcast_addr
, 0, 0) ==
1192 IWL_INVALID_STATION
) {
1193 IWL_ERROR("Error adding BROADCAST address for transmit.\n");
1197 /* If we have set the ASSOC_MSK and we are in BSS mode then
1198 * add the IWL_AP_ID to the station rate table */
1199 if (iwl3945_is_associated(priv
) &&
1200 (priv
->iw_mode
== IEEE80211_IF_TYPE_STA
))
1201 if (iwl3945_add_station(priv
, priv
->active_rxon
.bssid_addr
, 1, 0)
1202 == IWL_INVALID_STATION
) {
1203 IWL_ERROR("Error adding AP address for transmit.\n");
1207 /* Init the hardware's rate fallback order based on the
1209 rc
= iwl3945_init_hw_rate_table(priv
);
1211 IWL_ERROR("Error setting HW rate table: %02X\n", rc
);
1218 static int iwl3945_send_bt_config(struct iwl3945_priv
*priv
)
1220 struct iwl3945_bt_cmd bt_cmd
= {
1228 return iwl3945_send_cmd_pdu(priv
, REPLY_BT_CONFIG
,
1229 sizeof(struct iwl3945_bt_cmd
), &bt_cmd
);
1232 static int iwl3945_send_scan_abort(struct iwl3945_priv
*priv
)
1235 struct iwl3945_rx_packet
*res
;
1236 struct iwl3945_host_cmd cmd
= {
1237 .id
= REPLY_SCAN_ABORT_CMD
,
1238 .meta
.flags
= CMD_WANT_SKB
,
1241 /* If there isn't a scan actively going on in the hardware
1242 * then we are in between scan bands and not actually
1243 * actively scanning, so don't send the abort command */
1244 if (!test_bit(STATUS_SCAN_HW
, &priv
->status
)) {
1245 clear_bit(STATUS_SCAN_ABORTING
, &priv
->status
);
1249 rc
= iwl3945_send_cmd_sync(priv
, &cmd
);
1251 clear_bit(STATUS_SCAN_ABORTING
, &priv
->status
);
1255 res
= (struct iwl3945_rx_packet
*)cmd
.meta
.u
.skb
->data
;
1256 if (res
->u
.status
!= CAN_ABORT_STATUS
) {
1257 /* The scan abort will return 1 for success or
1258 * 2 for "failure". A failure condition can be
1259 * due to simply not being in an active scan which
1260 * can occur if we send the scan abort before we
1261 * the microcode has notified us that a scan is
1263 IWL_DEBUG_INFO("SCAN_ABORT returned %d.\n", res
->u
.status
);
1264 clear_bit(STATUS_SCAN_ABORTING
, &priv
->status
);
1265 clear_bit(STATUS_SCAN_HW
, &priv
->status
);
1268 dev_kfree_skb_any(cmd
.meta
.u
.skb
);
1273 static int iwl3945_card_state_sync_callback(struct iwl3945_priv
*priv
,
1274 struct iwl3945_cmd
*cmd
,
1275 struct sk_buff
*skb
)
1283 * Use: Sets the device's internal card state to enable, disable, or halt
1285 * When in the 'enable' state the card operates as normal.
1286 * When in the 'disable' state, the card enters into a low power mode.
1287 * When in the 'halt' state, the card is shut down and must be fully
1288 * restarted to come back on.
1290 static int iwl3945_send_card_state(struct iwl3945_priv
*priv
, u32 flags
, u8 meta_flag
)
1292 struct iwl3945_host_cmd cmd
= {
1293 .id
= REPLY_CARD_STATE_CMD
,
1296 .meta
.flags
= meta_flag
,
1299 if (meta_flag
& CMD_ASYNC
)
1300 cmd
.meta
.u
.callback
= iwl3945_card_state_sync_callback
;
1302 return iwl3945_send_cmd(priv
, &cmd
);
1305 static int iwl3945_add_sta_sync_callback(struct iwl3945_priv
*priv
,
1306 struct iwl3945_cmd
*cmd
, struct sk_buff
*skb
)
1308 struct iwl3945_rx_packet
*res
= NULL
;
1311 IWL_ERROR("Error: Response NULL in REPLY_ADD_STA.\n");
1315 res
= (struct iwl3945_rx_packet
*)skb
->data
;
1316 if (res
->hdr
.flags
& IWL_CMD_FAILED_MSK
) {
1317 IWL_ERROR("Bad return from REPLY_ADD_STA (0x%08X)\n",
1322 switch (res
->u
.add_sta
.status
) {
1323 case ADD_STA_SUCCESS_MSK
:
1329 /* We didn't cache the SKB; let the caller free it */
1333 int iwl3945_send_add_station(struct iwl3945_priv
*priv
,
1334 struct iwl3945_addsta_cmd
*sta
, u8 flags
)
1336 struct iwl3945_rx_packet
*res
= NULL
;
1338 struct iwl3945_host_cmd cmd
= {
1339 .id
= REPLY_ADD_STA
,
1340 .len
= sizeof(struct iwl3945_addsta_cmd
),
1341 .meta
.flags
= flags
,
1345 if (flags
& CMD_ASYNC
)
1346 cmd
.meta
.u
.callback
= iwl3945_add_sta_sync_callback
;
1348 cmd
.meta
.flags
|= CMD_WANT_SKB
;
1350 rc
= iwl3945_send_cmd(priv
, &cmd
);
1352 if (rc
|| (flags
& CMD_ASYNC
))
1355 res
= (struct iwl3945_rx_packet
*)cmd
.meta
.u
.skb
->data
;
1356 if (res
->hdr
.flags
& IWL_CMD_FAILED_MSK
) {
1357 IWL_ERROR("Bad return from REPLY_ADD_STA (0x%08X)\n",
1363 switch (res
->u
.add_sta
.status
) {
1364 case ADD_STA_SUCCESS_MSK
:
1365 IWL_DEBUG_INFO("REPLY_ADD_STA PASSED\n");
1369 IWL_WARNING("REPLY_ADD_STA failed\n");
1374 priv
->alloc_rxb_skb
--;
1375 dev_kfree_skb_any(cmd
.meta
.u
.skb
);
1380 static int iwl3945_update_sta_key_info(struct iwl3945_priv
*priv
,
1381 struct ieee80211_key_conf
*keyconf
,
1384 unsigned long flags
;
1385 __le16 key_flags
= 0;
1387 switch (keyconf
->alg
) {
1389 key_flags
|= STA_KEY_FLG_CCMP
;
1390 key_flags
|= cpu_to_le16(
1391 keyconf
->keyidx
<< STA_KEY_FLG_KEYID_POS
);
1392 key_flags
&= ~STA_KEY_FLG_INVALID
;
1399 spin_lock_irqsave(&priv
->sta_lock
, flags
);
1400 priv
->stations
[sta_id
].keyinfo
.alg
= keyconf
->alg
;
1401 priv
->stations
[sta_id
].keyinfo
.keylen
= keyconf
->keylen
;
1402 memcpy(priv
->stations
[sta_id
].keyinfo
.key
, keyconf
->key
,
1405 memcpy(priv
->stations
[sta_id
].sta
.key
.key
, keyconf
->key
,
1407 priv
->stations
[sta_id
].sta
.key
.key_flags
= key_flags
;
1408 priv
->stations
[sta_id
].sta
.sta
.modify_mask
= STA_MODIFY_KEY_MASK
;
1409 priv
->stations
[sta_id
].sta
.mode
= STA_CONTROL_MODIFY_MSK
;
1411 spin_unlock_irqrestore(&priv
->sta_lock
, flags
);
1413 IWL_DEBUG_INFO("hwcrypto: modify ucode station key info\n");
1414 iwl3945_send_add_station(priv
, &priv
->stations
[sta_id
].sta
, 0);
1418 static int iwl3945_clear_sta_key_info(struct iwl3945_priv
*priv
, u8 sta_id
)
1420 unsigned long flags
;
1422 spin_lock_irqsave(&priv
->sta_lock
, flags
);
1423 memset(&priv
->stations
[sta_id
].keyinfo
, 0, sizeof(struct iwl3945_hw_key
));
1424 memset(&priv
->stations
[sta_id
].sta
.key
, 0, sizeof(struct iwl3945_keyinfo
));
1425 priv
->stations
[sta_id
].sta
.key
.key_flags
= STA_KEY_FLG_NO_ENC
;
1426 priv
->stations
[sta_id
].sta
.sta
.modify_mask
= STA_MODIFY_KEY_MASK
;
1427 priv
->stations
[sta_id
].sta
.mode
= STA_CONTROL_MODIFY_MSK
;
1428 spin_unlock_irqrestore(&priv
->sta_lock
, flags
);
1430 IWL_DEBUG_INFO("hwcrypto: clear ucode station key info\n");
1431 iwl3945_send_add_station(priv
, &priv
->stations
[sta_id
].sta
, 0);
1435 static void iwl3945_clear_free_frames(struct iwl3945_priv
*priv
)
1437 struct list_head
*element
;
1439 IWL_DEBUG_INFO("%d frames on pre-allocated heap on clear.\n",
1440 priv
->frames_count
);
1442 while (!list_empty(&priv
->free_frames
)) {
1443 element
= priv
->free_frames
.next
;
1445 kfree(list_entry(element
, struct iwl3945_frame
, list
));
1446 priv
->frames_count
--;
1449 if (priv
->frames_count
) {
1450 IWL_WARNING("%d frames still in use. Did we lose one?\n",
1451 priv
->frames_count
);
1452 priv
->frames_count
= 0;
1456 static struct iwl3945_frame
*iwl3945_get_free_frame(struct iwl3945_priv
*priv
)
1458 struct iwl3945_frame
*frame
;
1459 struct list_head
*element
;
1460 if (list_empty(&priv
->free_frames
)) {
1461 frame
= kzalloc(sizeof(*frame
), GFP_KERNEL
);
1463 IWL_ERROR("Could not allocate frame!\n");
1467 priv
->frames_count
++;
1471 element
= priv
->free_frames
.next
;
1473 return list_entry(element
, struct iwl3945_frame
, list
);
1476 static void iwl3945_free_frame(struct iwl3945_priv
*priv
, struct iwl3945_frame
*frame
)
1478 memset(frame
, 0, sizeof(*frame
));
1479 list_add(&frame
->list
, &priv
->free_frames
);
1482 unsigned int iwl3945_fill_beacon_frame(struct iwl3945_priv
*priv
,
1483 struct ieee80211_hdr
*hdr
,
1484 const u8
*dest
, int left
)
1487 if (!iwl3945_is_associated(priv
) || !priv
->ibss_beacon
||
1488 ((priv
->iw_mode
!= IEEE80211_IF_TYPE_IBSS
) &&
1489 (priv
->iw_mode
!= IEEE80211_IF_TYPE_AP
)))
1492 if (priv
->ibss_beacon
->len
> left
)
1495 memcpy(hdr
, priv
->ibss_beacon
->data
, priv
->ibss_beacon
->len
);
1497 return priv
->ibss_beacon
->len
;
1500 static u8
iwl3945_rate_get_lowest_plcp(int rate_mask
)
1504 for (i
= IWL_RATE_1M_INDEX
; i
!= IWL_RATE_INVALID
;
1505 i
= iwl3945_rates
[i
].next_ieee
) {
1506 if (rate_mask
& (1 << i
))
1507 return iwl3945_rates
[i
].plcp
;
1510 return IWL_RATE_INVALID
;
1513 static int iwl3945_send_beacon_cmd(struct iwl3945_priv
*priv
)
1515 struct iwl3945_frame
*frame
;
1516 unsigned int frame_size
;
1520 frame
= iwl3945_get_free_frame(priv
);
1523 IWL_ERROR("Could not obtain free frame buffer for beacon "
1528 if (!(priv
->staging_rxon
.flags
& RXON_FLG_BAND_24G_MSK
)) {
1529 rate
= iwl3945_rate_get_lowest_plcp(priv
->active_rate_basic
&
1531 if (rate
== IWL_INVALID_RATE
)
1532 rate
= IWL_RATE_6M_PLCP
;
1534 rate
= iwl3945_rate_get_lowest_plcp(priv
->active_rate_basic
& 0xF);
1535 if (rate
== IWL_INVALID_RATE
)
1536 rate
= IWL_RATE_1M_PLCP
;
1539 frame_size
= iwl3945_hw_get_beacon_cmd(priv
, frame
, rate
);
1541 rc
= iwl3945_send_cmd_pdu(priv
, REPLY_TX_BEACON
, frame_size
,
1544 iwl3945_free_frame(priv
, frame
);
1549 /******************************************************************************
1551 * EEPROM related functions
1553 ******************************************************************************/
1555 static void get_eeprom_mac(struct iwl3945_priv
*priv
, u8
*mac
)
1557 memcpy(mac
, priv
->eeprom
.mac_address
, 6);
1561 * iwl3945_eeprom_init - read EEPROM contents
1563 * Load the EEPROM contents from adapter into priv->eeprom
1565 * NOTE: This routine uses the non-debug IO access functions.
1567 int iwl3945_eeprom_init(struct iwl3945_priv
*priv
)
1569 u16
*e
= (u16
*)&priv
->eeprom
;
1570 u32 gp
= iwl3945_read32(priv
, CSR_EEPROM_GP
);
1572 int sz
= sizeof(priv
->eeprom
);
1577 /* The EEPROM structure has several padding buffers within it
1578 * and when adding new EEPROM maps is subject to programmer errors
1579 * which may be very difficult to identify without explicitly
1580 * checking the resulting size of the eeprom map. */
1581 BUILD_BUG_ON(sizeof(priv
->eeprom
) != IWL_EEPROM_IMAGE_SIZE
);
1583 if ((gp
& CSR_EEPROM_GP_VALID_MSK
) == CSR_EEPROM_GP_BAD_SIGNATURE
) {
1584 IWL_ERROR("EEPROM not found, EEPROM_GP=0x%08x", gp
);
1588 /* Make sure driver (instead of uCode) is allowed to read EEPROM */
1589 rc
= iwl3945_eeprom_acquire_semaphore(priv
);
1591 IWL_ERROR("Failed to acquire EEPROM semaphore.\n");
1595 /* eeprom is an array of 16bit values */
1596 for (addr
= 0; addr
< sz
; addr
+= sizeof(u16
)) {
1597 _iwl3945_write32(priv
, CSR_EEPROM_REG
, addr
<< 1);
1598 _iwl3945_clear_bit(priv
, CSR_EEPROM_REG
, CSR_EEPROM_REG_BIT_CMD
);
1600 for (i
= 0; i
< IWL_EEPROM_ACCESS_TIMEOUT
;
1601 i
+= IWL_EEPROM_ACCESS_DELAY
) {
1602 r
= _iwl3945_read_direct32(priv
, CSR_EEPROM_REG
);
1603 if (r
& CSR_EEPROM_REG_READ_VALID_MSK
)
1605 udelay(IWL_EEPROM_ACCESS_DELAY
);
1608 if (!(r
& CSR_EEPROM_REG_READ_VALID_MSK
)) {
1609 IWL_ERROR("Time out reading EEPROM[%d]", addr
);
1612 e
[addr
/ 2] = le16_to_cpu(r
>> 16);
1618 /******************************************************************************
1620 * Misc. internal state and helper functions
1622 ******************************************************************************/
1623 #ifdef CONFIG_IWL3945_DEBUG
1626 * iwl3945_report_frame - dump frame to syslog during debug sessions
1628 * You may hack this function to show different aspects of received frames,
1629 * including selective frame dumps.
1630 * group100 parameter selects whether to show 1 out of 100 good frames.
1632 void iwl3945_report_frame(struct iwl3945_priv
*priv
,
1633 struct iwl3945_rx_packet
*pkt
,
1634 struct ieee80211_hdr
*header
, int group100
)
1637 u32 print_summary
= 0;
1638 u32 print_dump
= 0; /* set to 1 to dump all frames' contents */
1655 struct iwl3945_rx_frame_stats
*rx_stats
= IWL_RX_STATS(pkt
);
1656 struct iwl3945_rx_frame_hdr
*rx_hdr
= IWL_RX_HDR(pkt
);
1657 struct iwl3945_rx_frame_end
*rx_end
= IWL_RX_END(pkt
);
1658 u8
*data
= IWL_RX_DATA(pkt
);
1661 fc
= le16_to_cpu(header
->frame_control
);
1662 seq_ctl
= le16_to_cpu(header
->seq_ctrl
);
1665 channel
= le16_to_cpu(rx_hdr
->channel
);
1666 phy_flags
= le16_to_cpu(rx_hdr
->phy_flags
);
1667 rate_sym
= rx_hdr
->rate
;
1668 length
= le16_to_cpu(rx_hdr
->len
);
1670 /* end-of-frame status and timestamp */
1671 status
= le32_to_cpu(rx_end
->status
);
1672 bcn_tmr
= le32_to_cpu(rx_end
->beacon_timestamp
);
1673 tsf_low
= le64_to_cpu(rx_end
->timestamp
) & 0x0ffffffff;
1674 tsf
= le64_to_cpu(rx_end
->timestamp
);
1676 /* signal statistics */
1677 rssi
= rx_stats
->rssi
;
1678 agc
= rx_stats
->agc
;
1679 sig_avg
= le16_to_cpu(rx_stats
->sig_avg
);
1680 noise_diff
= le16_to_cpu(rx_stats
->noise_diff
);
1682 to_us
= !compare_ether_addr(header
->addr1
, priv
->mac_addr
);
1684 /* if data frame is to us and all is good,
1685 * (optionally) print summary for only 1 out of every 100 */
1686 if (to_us
&& (fc
& ~IEEE80211_FCTL_PROTECTED
) ==
1687 (IEEE80211_FCTL_FROMDS
| IEEE80211_FTYPE_DATA
)) {
1690 print_summary
= 1; /* print each frame */
1691 else if (priv
->framecnt_to_us
< 100) {
1692 priv
->framecnt_to_us
++;
1695 priv
->framecnt_to_us
= 0;
1700 /* print summary for all other frames */
1704 if (print_summary
) {
1709 title
= "100Frames";
1710 else if (fc
& IEEE80211_FCTL_RETRY
)
1712 else if (ieee80211_is_assoc_response(fc
))
1714 else if (ieee80211_is_reassoc_response(fc
))
1716 else if (ieee80211_is_probe_response(fc
)) {
1718 print_dump
= 1; /* dump frame contents */
1719 } else if (ieee80211_is_beacon(fc
)) {
1721 print_dump
= 1; /* dump frame contents */
1722 } else if (ieee80211_is_atim(fc
))
1724 else if (ieee80211_is_auth(fc
))
1726 else if (ieee80211_is_deauth(fc
))
1728 else if (ieee80211_is_disassoc(fc
))
1733 rate
= iwl3945_rate_index_from_plcp(rate_sym
);
1737 rate
= iwl3945_rates
[rate
].ieee
/ 2;
1739 /* print frame summary.
1740 * MAC addresses show just the last byte (for brevity),
1741 * but you can hack it to show more, if you'd like to. */
1743 IWL_DEBUG_RX("%s: mhd=0x%04x, dst=0x%02x, "
1744 "len=%u, rssi=%d, chnl=%d, rate=%u, \n",
1745 title
, fc
, header
->addr1
[5],
1746 length
, rssi
, channel
, rate
);
1748 /* src/dst addresses assume managed mode */
1749 IWL_DEBUG_RX("%s: 0x%04x, dst=0x%02x, "
1750 "src=0x%02x, rssi=%u, tim=%lu usec, "
1751 "phy=0x%02x, chnl=%d\n",
1752 title
, fc
, header
->addr1
[5],
1753 header
->addr3
[5], rssi
,
1754 tsf_low
- priv
->scan_start_tsf
,
1755 phy_flags
, channel
);
1759 iwl3945_print_hex_dump(IWL_DL_RX
, data
, length
);
1763 static void iwl3945_unset_hw_setting(struct iwl3945_priv
*priv
)
1765 if (priv
->hw_setting
.shared_virt
)
1766 pci_free_consistent(priv
->pci_dev
,
1767 sizeof(struct iwl3945_shared
),
1768 priv
->hw_setting
.shared_virt
,
1769 priv
->hw_setting
.shared_phys
);
1773 * iwl3945_supported_rate_to_ie - fill in the supported rate in IE field
1775 * return : set the bit for each supported rate insert in ie
1777 static u16
iwl3945_supported_rate_to_ie(u8
*ie
, u16 supported_rate
,
1778 u16 basic_rate
, int *left
)
1780 u16 ret_rates
= 0, bit
;
1785 for (bit
= 1, i
= 0; i
< IWL_RATE_COUNT
; i
++, bit
<<= 1) {
1786 if (bit
& supported_rate
) {
1788 rates
[*cnt
] = iwl3945_rates
[i
].ieee
|
1789 ((bit
& basic_rate
) ? 0x80 : 0x00);
1793 (*cnt
>= IWL_SUPPORTED_RATES_IE_LEN
))
1802 * iwl3945_fill_probe_req - fill in all required fields and IE for probe request
1804 static u16
iwl3945_fill_probe_req(struct iwl3945_priv
*priv
,
1805 struct ieee80211_mgmt
*frame
,
1806 int left
, int is_direct
)
1810 u16 active_rates
, ret_rates
, cck_rates
;
1812 /* Make sure there is enough space for the probe request,
1813 * two mandatory IEs and the data */
1819 frame
->frame_control
= cpu_to_le16(IEEE80211_STYPE_PROBE_REQ
);
1820 memcpy(frame
->da
, iwl3945_broadcast_addr
, ETH_ALEN
);
1821 memcpy(frame
->sa
, priv
->mac_addr
, ETH_ALEN
);
1822 memcpy(frame
->bssid
, iwl3945_broadcast_addr
, ETH_ALEN
);
1823 frame
->seq_ctrl
= 0;
1825 /* fill in our indirect SSID IE */
1832 pos
= &(frame
->u
.probe_req
.variable
[0]);
1833 *pos
++ = WLAN_EID_SSID
;
1836 /* fill in our direct SSID IE... */
1839 left
-= 2 + priv
->essid_len
;
1842 /* ... fill it in... */
1843 *pos
++ = WLAN_EID_SSID
;
1844 *pos
++ = priv
->essid_len
;
1845 memcpy(pos
, priv
->essid
, priv
->essid_len
);
1846 pos
+= priv
->essid_len
;
1847 len
+= 2 + priv
->essid_len
;
1850 /* fill in supported rate */
1856 /* ... fill it in... */
1857 *pos
++ = WLAN_EID_SUPP_RATES
;
1860 priv
->active_rate
= priv
->rates_mask
;
1861 active_rates
= priv
->active_rate
;
1862 priv
->active_rate_basic
= priv
->rates_mask
& IWL_BASIC_RATES_MASK
;
1864 cck_rates
= IWL_CCK_RATES_MASK
& active_rates
;
1865 ret_rates
= iwl3945_supported_rate_to_ie(pos
, cck_rates
,
1866 priv
->active_rate_basic
, &left
);
1867 active_rates
&= ~ret_rates
;
1869 ret_rates
= iwl3945_supported_rate_to_ie(pos
, active_rates
,
1870 priv
->active_rate_basic
, &left
);
1871 active_rates
&= ~ret_rates
;
1875 if (active_rates
== 0)
1878 /* fill in supported extended rate */
1883 /* ... fill it in... */
1884 *pos
++ = WLAN_EID_EXT_SUPP_RATES
;
1886 iwl3945_supported_rate_to_ie(pos
, active_rates
,
1887 priv
->active_rate_basic
, &left
);
1898 #ifdef CONFIG_IWL3945_QOS
1899 static int iwl3945_send_qos_params_command(struct iwl3945_priv
*priv
,
1900 struct iwl3945_qosparam_cmd
*qos
)
1903 return iwl3945_send_cmd_pdu(priv
, REPLY_QOS_PARAM
,
1904 sizeof(struct iwl3945_qosparam_cmd
), qos
);
1907 static void iwl3945_reset_qos(struct iwl3945_priv
*priv
)
1913 unsigned long flags
;
1916 spin_lock_irqsave(&priv
->lock
, flags
);
1917 priv
->qos_data
.qos_active
= 0;
1919 if (priv
->iw_mode
== IEEE80211_IF_TYPE_IBSS
) {
1920 if (priv
->qos_data
.qos_enable
)
1921 priv
->qos_data
.qos_active
= 1;
1922 if (!(priv
->active_rate
& 0xfff0)) {
1926 } else if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) {
1927 if (priv
->qos_data
.qos_enable
)
1928 priv
->qos_data
.qos_active
= 1;
1929 } else if (!(priv
->staging_rxon
.flags
& RXON_FLG_SHORT_SLOT_MSK
)) {
1934 if (priv
->qos_data
.qos_active
)
1937 priv
->qos_data
.def_qos_parm
.ac
[0].cw_min
= cpu_to_le16(cw_min
);
1938 priv
->qos_data
.def_qos_parm
.ac
[0].cw_max
= cpu_to_le16(cw_max
);
1939 priv
->qos_data
.def_qos_parm
.ac
[0].aifsn
= aifs
;
1940 priv
->qos_data
.def_qos_parm
.ac
[0].edca_txop
= 0;
1941 priv
->qos_data
.def_qos_parm
.ac
[0].reserved1
= 0;
1943 if (priv
->qos_data
.qos_active
) {
1945 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_min
= cpu_to_le16(cw_min
);
1946 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_max
= cpu_to_le16(cw_max
);
1947 priv
->qos_data
.def_qos_parm
.ac
[i
].aifsn
= 7;
1948 priv
->qos_data
.def_qos_parm
.ac
[i
].edca_txop
= 0;
1949 priv
->qos_data
.def_qos_parm
.ac
[i
].reserved1
= 0;
1952 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_min
=
1953 cpu_to_le16((cw_min
+ 1) / 2 - 1);
1954 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_max
=
1955 cpu_to_le16(cw_max
);
1956 priv
->qos_data
.def_qos_parm
.ac
[i
].aifsn
= 2;
1958 priv
->qos_data
.def_qos_parm
.ac
[i
].edca_txop
=
1961 priv
->qos_data
.def_qos_parm
.ac
[i
].edca_txop
=
1963 priv
->qos_data
.def_qos_parm
.ac
[i
].reserved1
= 0;
1966 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_min
=
1967 cpu_to_le16((cw_min
+ 1) / 4 - 1);
1968 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_max
=
1969 cpu_to_le16((cw_max
+ 1) / 2 - 1);
1970 priv
->qos_data
.def_qos_parm
.ac
[i
].aifsn
= 2;
1971 priv
->qos_data
.def_qos_parm
.ac
[i
].reserved1
= 0;
1973 priv
->qos_data
.def_qos_parm
.ac
[i
].edca_txop
=
1976 priv
->qos_data
.def_qos_parm
.ac
[i
].edca_txop
=
1979 for (i
= 1; i
< 4; i
++) {
1980 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_min
=
1981 cpu_to_le16(cw_min
);
1982 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_max
=
1983 cpu_to_le16(cw_max
);
1984 priv
->qos_data
.def_qos_parm
.ac
[i
].aifsn
= aifs
;
1985 priv
->qos_data
.def_qos_parm
.ac
[i
].edca_txop
= 0;
1986 priv
->qos_data
.def_qos_parm
.ac
[i
].reserved1
= 0;
1989 IWL_DEBUG_QOS("set QoS to default \n");
1991 spin_unlock_irqrestore(&priv
->lock
, flags
);
1994 static void iwl3945_activate_qos(struct iwl3945_priv
*priv
, u8 force
)
1996 unsigned long flags
;
1998 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
2001 if (!priv
->qos_data
.qos_enable
)
2004 spin_lock_irqsave(&priv
->lock
, flags
);
2005 priv
->qos_data
.def_qos_parm
.qos_flags
= 0;
2007 if (priv
->qos_data
.qos_cap
.q_AP
.queue_request
&&
2008 !priv
->qos_data
.qos_cap
.q_AP
.txop_request
)
2009 priv
->qos_data
.def_qos_parm
.qos_flags
|=
2010 QOS_PARAM_FLG_TXOP_TYPE_MSK
;
2012 if (priv
->qos_data
.qos_active
)
2013 priv
->qos_data
.def_qos_parm
.qos_flags
|=
2014 QOS_PARAM_FLG_UPDATE_EDCA_MSK
;
2016 spin_unlock_irqrestore(&priv
->lock
, flags
);
2018 if (force
|| iwl3945_is_associated(priv
)) {
2019 IWL_DEBUG_QOS("send QoS cmd with Qos active %d \n",
2020 priv
->qos_data
.qos_active
);
2022 iwl3945_send_qos_params_command(priv
,
2023 &(priv
->qos_data
.def_qos_parm
));
2027 #endif /* CONFIG_IWL3945_QOS */
2029 * Power management (not Tx power!) functions
2031 #define MSEC_TO_USEC 1024
2033 #define NOSLP __constant_cpu_to_le32(0)
2034 #define SLP IWL_POWER_DRIVER_ALLOW_SLEEP_MSK
2035 #define SLP_TIMEOUT(T) __constant_cpu_to_le32((T) * MSEC_TO_USEC)
2036 #define SLP_VEC(X0, X1, X2, X3, X4) {__constant_cpu_to_le32(X0), \
2037 __constant_cpu_to_le32(X1), \
2038 __constant_cpu_to_le32(X2), \
2039 __constant_cpu_to_le32(X3), \
2040 __constant_cpu_to_le32(X4)}
2043 /* default power management (not Tx power) table values */
2045 static struct iwl3945_power_vec_entry range_0
[IWL_POWER_AC
] = {
2046 {{NOSLP
, SLP_TIMEOUT(0), SLP_TIMEOUT(0), SLP_VEC(0, 0, 0, 0, 0)}, 0},
2047 {{SLP
, SLP_TIMEOUT(200), SLP_TIMEOUT(500), SLP_VEC(1, 2, 3, 4, 4)}, 0},
2048 {{SLP
, SLP_TIMEOUT(200), SLP_TIMEOUT(300), SLP_VEC(2, 4, 6, 7, 7)}, 0},
2049 {{SLP
, SLP_TIMEOUT(50), SLP_TIMEOUT(100), SLP_VEC(2, 6, 9, 9, 10)}, 0},
2050 {{SLP
, SLP_TIMEOUT(50), SLP_TIMEOUT(25), SLP_VEC(2, 7, 9, 9, 10)}, 1},
2051 {{SLP
, SLP_TIMEOUT(25), SLP_TIMEOUT(25), SLP_VEC(4, 7, 10, 10, 10)}, 1}
2055 static struct iwl3945_power_vec_entry range_1
[IWL_POWER_AC
] = {
2056 {{NOSLP
, SLP_TIMEOUT(0), SLP_TIMEOUT(0), SLP_VEC(0, 0, 0, 0, 0)}, 0},
2057 {{SLP
, SLP_TIMEOUT(200), SLP_TIMEOUT(500),
2058 SLP_VEC(1, 2, 3, 4, 0xFF)}, 0},
2059 {{SLP
, SLP_TIMEOUT(200), SLP_TIMEOUT(300),
2060 SLP_VEC(2, 4, 6, 7, 0xFF)}, 0},
2061 {{SLP
, SLP_TIMEOUT(50), SLP_TIMEOUT(100),
2062 SLP_VEC(2, 6, 9, 9, 0xFF)}, 0},
2063 {{SLP
, SLP_TIMEOUT(50), SLP_TIMEOUT(25), SLP_VEC(2, 7, 9, 9, 0xFF)}, 0},
2064 {{SLP
, SLP_TIMEOUT(25), SLP_TIMEOUT(25),
2065 SLP_VEC(4, 7, 10, 10, 0xFF)}, 0}
2068 int iwl3945_power_init_handle(struct iwl3945_priv
*priv
)
2071 struct iwl3945_power_mgr
*pow_data
;
2072 int size
= sizeof(struct iwl3945_power_vec_entry
) * IWL_POWER_AC
;
2075 IWL_DEBUG_POWER("Initialize power \n");
2077 pow_data
= &(priv
->power_data
);
2079 memset(pow_data
, 0, sizeof(*pow_data
));
2081 pow_data
->active_index
= IWL_POWER_RANGE_0
;
2082 pow_data
->dtim_val
= 0xffff;
2084 memcpy(&pow_data
->pwr_range_0
[0], &range_0
[0], size
);
2085 memcpy(&pow_data
->pwr_range_1
[0], &range_1
[0], size
);
2087 rc
= pci_read_config_word(priv
->pci_dev
, PCI_LINK_CTRL
, &pci_pm
);
2091 struct iwl3945_powertable_cmd
*cmd
;
2093 IWL_DEBUG_POWER("adjust power command flags\n");
2095 for (i
= 0; i
< IWL_POWER_AC
; i
++) {
2096 cmd
= &pow_data
->pwr_range_0
[i
].cmd
;
2099 cmd
->flags
&= ~IWL_POWER_PCI_PM_MSK
;
2101 cmd
->flags
|= IWL_POWER_PCI_PM_MSK
;
2107 static int iwl3945_update_power_cmd(struct iwl3945_priv
*priv
,
2108 struct iwl3945_powertable_cmd
*cmd
, u32 mode
)
2113 struct iwl3945_power_vec_entry
*range
;
2115 struct iwl3945_power_mgr
*pow_data
;
2117 if (mode
> IWL_POWER_INDEX_5
) {
2118 IWL_DEBUG_POWER("Error invalid power mode \n");
2121 pow_data
= &(priv
->power_data
);
2123 if (pow_data
->active_index
== IWL_POWER_RANGE_0
)
2124 range
= &pow_data
->pwr_range_0
[0];
2126 range
= &pow_data
->pwr_range_1
[1];
2128 memcpy(cmd
, &range
[mode
].cmd
, sizeof(struct iwl3945_powertable_cmd
));
2130 #ifdef IWL_MAC80211_DISABLE
2131 if (priv
->assoc_network
!= NULL
) {
2132 unsigned long flags
;
2134 period
= priv
->assoc_network
->tim
.tim_period
;
2136 #endif /*IWL_MAC80211_DISABLE */
2137 skip
= range
[mode
].no_dtim
;
2146 cmd
->flags
&= ~IWL_POWER_SLEEP_OVER_DTIM_MSK
;
2148 __le32 slp_itrvl
= cmd
->sleep_interval
[IWL_POWER_VEC_SIZE
- 1];
2149 max_sleep
= (le32_to_cpu(slp_itrvl
) / period
) * period
;
2150 cmd
->flags
|= IWL_POWER_SLEEP_OVER_DTIM_MSK
;
2153 for (i
= 0; i
< IWL_POWER_VEC_SIZE
; i
++) {
2154 if (le32_to_cpu(cmd
->sleep_interval
[i
]) > max_sleep
)
2155 cmd
->sleep_interval
[i
] = cpu_to_le32(max_sleep
);
2158 IWL_DEBUG_POWER("Flags value = 0x%08X\n", cmd
->flags
);
2159 IWL_DEBUG_POWER("Tx timeout = %u\n", le32_to_cpu(cmd
->tx_data_timeout
));
2160 IWL_DEBUG_POWER("Rx timeout = %u\n", le32_to_cpu(cmd
->rx_data_timeout
));
2161 IWL_DEBUG_POWER("Sleep interval vector = { %d , %d , %d , %d , %d }\n",
2162 le32_to_cpu(cmd
->sleep_interval
[0]),
2163 le32_to_cpu(cmd
->sleep_interval
[1]),
2164 le32_to_cpu(cmd
->sleep_interval
[2]),
2165 le32_to_cpu(cmd
->sleep_interval
[3]),
2166 le32_to_cpu(cmd
->sleep_interval
[4]));
2171 static int iwl3945_send_power_mode(struct iwl3945_priv
*priv
, u32 mode
)
2173 u32
uninitialized_var(final_mode
);
2175 struct iwl3945_powertable_cmd cmd
;
2177 /* If on battery, set to 3,
2178 * if plugged into AC power, set to CAM ("continuously aware mode"),
2179 * else user level */
2181 case IWL_POWER_BATTERY
:
2182 final_mode
= IWL_POWER_INDEX_3
;
2185 final_mode
= IWL_POWER_MODE_CAM
;
2192 iwl3945_update_power_cmd(priv
, &cmd
, final_mode
);
2194 rc
= iwl3945_send_cmd_pdu(priv
, POWER_TABLE_CMD
, sizeof(cmd
), &cmd
);
2196 if (final_mode
== IWL_POWER_MODE_CAM
)
2197 clear_bit(STATUS_POWER_PMI
, &priv
->status
);
2199 set_bit(STATUS_POWER_PMI
, &priv
->status
);
2204 int iwl3945_is_network_packet(struct iwl3945_priv
*priv
, struct ieee80211_hdr
*header
)
2206 /* Filter incoming packets to determine if they are targeted toward
2207 * this network, discarding packets coming from ourselves */
2208 switch (priv
->iw_mode
) {
2209 case IEEE80211_IF_TYPE_IBSS
: /* Header: Dest. | Source | BSSID */
2210 /* packets from our adapter are dropped (echo) */
2211 if (!compare_ether_addr(header
->addr2
, priv
->mac_addr
))
2213 /* {broad,multi}cast packets to our IBSS go through */
2214 if (is_multicast_ether_addr(header
->addr1
))
2215 return !compare_ether_addr(header
->addr3
, priv
->bssid
);
2216 /* packets to our adapter go through */
2217 return !compare_ether_addr(header
->addr1
, priv
->mac_addr
);
2218 case IEEE80211_IF_TYPE_STA
: /* Header: Dest. | AP{BSSID} | Source */
2219 /* packets from our adapter are dropped (echo) */
2220 if (!compare_ether_addr(header
->addr3
, priv
->mac_addr
))
2222 /* {broad,multi}cast packets to our BSS go through */
2223 if (is_multicast_ether_addr(header
->addr1
))
2224 return !compare_ether_addr(header
->addr2
, priv
->bssid
);
2225 /* packets to our adapter go through */
2226 return !compare_ether_addr(header
->addr1
, priv
->mac_addr
);
2232 #define TX_STATUS_ENTRY(x) case TX_STATUS_FAIL_ ## x: return #x
2234 static const char *iwl3945_get_tx_fail_reason(u32 status
)
2236 switch (status
& TX_STATUS_MSK
) {
2237 case TX_STATUS_SUCCESS
:
2239 TX_STATUS_ENTRY(SHORT_LIMIT
);
2240 TX_STATUS_ENTRY(LONG_LIMIT
);
2241 TX_STATUS_ENTRY(FIFO_UNDERRUN
);
2242 TX_STATUS_ENTRY(MGMNT_ABORT
);
2243 TX_STATUS_ENTRY(NEXT_FRAG
);
2244 TX_STATUS_ENTRY(LIFE_EXPIRE
);
2245 TX_STATUS_ENTRY(DEST_PS
);
2246 TX_STATUS_ENTRY(ABORTED
);
2247 TX_STATUS_ENTRY(BT_RETRY
);
2248 TX_STATUS_ENTRY(STA_INVALID
);
2249 TX_STATUS_ENTRY(FRAG_DROPPED
);
2250 TX_STATUS_ENTRY(TID_DISABLE
);
2251 TX_STATUS_ENTRY(FRAME_FLUSHED
);
2252 TX_STATUS_ENTRY(INSUFFICIENT_CF_POLL
);
2253 TX_STATUS_ENTRY(TX_LOCKED
);
2254 TX_STATUS_ENTRY(NO_BEACON_ON_RADAR
);
2261 * iwl3945_scan_cancel - Cancel any currently executing HW scan
2263 * NOTE: priv->mutex is not required before calling this function
2265 static int iwl3945_scan_cancel(struct iwl3945_priv
*priv
)
2267 if (!test_bit(STATUS_SCAN_HW
, &priv
->status
)) {
2268 clear_bit(STATUS_SCANNING
, &priv
->status
);
2272 if (test_bit(STATUS_SCANNING
, &priv
->status
)) {
2273 if (!test_bit(STATUS_SCAN_ABORTING
, &priv
->status
)) {
2274 IWL_DEBUG_SCAN("Queuing scan abort.\n");
2275 set_bit(STATUS_SCAN_ABORTING
, &priv
->status
);
2276 queue_work(priv
->workqueue
, &priv
->abort_scan
);
2279 IWL_DEBUG_SCAN("Scan abort already in progress.\n");
2281 return test_bit(STATUS_SCANNING
, &priv
->status
);
2288 * iwl3945_scan_cancel_timeout - Cancel any currently executing HW scan
2289 * @ms: amount of time to wait (in milliseconds) for scan to abort
2291 * NOTE: priv->mutex must be held before calling this function
2293 static int iwl3945_scan_cancel_timeout(struct iwl3945_priv
*priv
, unsigned long ms
)
2295 unsigned long now
= jiffies
;
2298 ret
= iwl3945_scan_cancel(priv
);
2300 mutex_unlock(&priv
->mutex
);
2301 while (!time_after(jiffies
, now
+ msecs_to_jiffies(ms
)) &&
2302 test_bit(STATUS_SCANNING
, &priv
->status
))
2304 mutex_lock(&priv
->mutex
);
2306 return test_bit(STATUS_SCANNING
, &priv
->status
);
2312 static void iwl3945_sequence_reset(struct iwl3945_priv
*priv
)
2314 /* Reset ieee stats */
2316 /* We don't reset the net_device_stats (ieee->stats) on
2319 priv
->last_seq_num
= -1;
2320 priv
->last_frag_num
= -1;
2321 priv
->last_packet_time
= 0;
2323 iwl3945_scan_cancel(priv
);
2326 #define MAX_UCODE_BEACON_INTERVAL 1024
2327 #define INTEL_CONN_LISTEN_INTERVAL __constant_cpu_to_le16(0xA)
2329 static __le16
iwl3945_adjust_beacon_interval(u16 beacon_val
)
2332 u16 beacon_factor
= 0;
2335 (beacon_val
+ MAX_UCODE_BEACON_INTERVAL
)
2336 / MAX_UCODE_BEACON_INTERVAL
;
2337 new_val
= beacon_val
/ beacon_factor
;
2339 return cpu_to_le16(new_val
);
2342 static void iwl3945_setup_rxon_timing(struct iwl3945_priv
*priv
)
2344 u64 interval_tm_unit
;
2346 unsigned long flags
;
2347 struct ieee80211_conf
*conf
= NULL
;
2350 conf
= ieee80211_get_hw_conf(priv
->hw
);
2352 spin_lock_irqsave(&priv
->lock
, flags
);
2353 priv
->rxon_timing
.timestamp
.dw
[1] = cpu_to_le32(priv
->timestamp1
);
2354 priv
->rxon_timing
.timestamp
.dw
[0] = cpu_to_le32(priv
->timestamp0
);
2356 priv
->rxon_timing
.listen_interval
= INTEL_CONN_LISTEN_INTERVAL
;
2358 tsf
= priv
->timestamp1
;
2359 tsf
= ((tsf
<< 32) | priv
->timestamp0
);
2361 beacon_int
= priv
->beacon_int
;
2362 spin_unlock_irqrestore(&priv
->lock
, flags
);
2364 if (priv
->iw_mode
== IEEE80211_IF_TYPE_STA
) {
2365 if (beacon_int
== 0) {
2366 priv
->rxon_timing
.beacon_interval
= cpu_to_le16(100);
2367 priv
->rxon_timing
.beacon_init_val
= cpu_to_le32(102400);
2369 priv
->rxon_timing
.beacon_interval
=
2370 cpu_to_le16(beacon_int
);
2371 priv
->rxon_timing
.beacon_interval
=
2372 iwl3945_adjust_beacon_interval(
2373 le16_to_cpu(priv
->rxon_timing
.beacon_interval
));
2376 priv
->rxon_timing
.atim_window
= 0;
2378 priv
->rxon_timing
.beacon_interval
=
2379 iwl3945_adjust_beacon_interval(conf
->beacon_int
);
2380 /* TODO: we need to get atim_window from upper stack
2381 * for now we set to 0 */
2382 priv
->rxon_timing
.atim_window
= 0;
2386 (le16_to_cpu(priv
->rxon_timing
.beacon_interval
) * 1024);
2387 result
= do_div(tsf
, interval_tm_unit
);
2388 priv
->rxon_timing
.beacon_init_val
=
2389 cpu_to_le32((u32
) ((u64
) interval_tm_unit
- result
));
2392 ("beacon interval %d beacon timer %d beacon tim %d\n",
2393 le16_to_cpu(priv
->rxon_timing
.beacon_interval
),
2394 le32_to_cpu(priv
->rxon_timing
.beacon_init_val
),
2395 le16_to_cpu(priv
->rxon_timing
.atim_window
));
2398 static int iwl3945_scan_initiate(struct iwl3945_priv
*priv
)
2400 if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) {
2401 IWL_ERROR("APs don't scan.\n");
2405 if (!iwl3945_is_ready_rf(priv
)) {
2406 IWL_DEBUG_SCAN("Aborting scan due to not ready.\n");
2410 if (test_bit(STATUS_SCANNING
, &priv
->status
)) {
2411 IWL_DEBUG_SCAN("Scan already in progress.\n");
2415 if (test_bit(STATUS_SCAN_ABORTING
, &priv
->status
)) {
2416 IWL_DEBUG_SCAN("Scan request while abort pending. "
2421 IWL_DEBUG_INFO("Starting scan...\n");
2422 priv
->scan_bands
= 2;
2423 set_bit(STATUS_SCANNING
, &priv
->status
);
2424 priv
->scan_start
= jiffies
;
2425 priv
->scan_pass_start
= priv
->scan_start
;
2427 queue_work(priv
->workqueue
, &priv
->request_scan
);
2432 static int iwl3945_set_rxon_hwcrypto(struct iwl3945_priv
*priv
, int hw_decrypt
)
2434 struct iwl3945_rxon_cmd
*rxon
= &priv
->staging_rxon
;
2437 rxon
->filter_flags
&= ~RXON_FILTER_DIS_DECRYPT_MSK
;
2439 rxon
->filter_flags
|= RXON_FILTER_DIS_DECRYPT_MSK
;
2444 static void iwl3945_set_flags_for_phymode(struct iwl3945_priv
*priv
, u8 phymode
)
2446 if (phymode
== MODE_IEEE80211A
) {
2447 priv
->staging_rxon
.flags
&=
2448 ~(RXON_FLG_BAND_24G_MSK
| RXON_FLG_AUTO_DETECT_MSK
2449 | RXON_FLG_CCK_MSK
);
2450 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_SLOT_MSK
;
2452 /* Copied from iwl3945_bg_post_associate() */
2453 if (priv
->assoc_capability
& WLAN_CAPABILITY_SHORT_SLOT_TIME
)
2454 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_SLOT_MSK
;
2456 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_SLOT_MSK
;
2458 if (priv
->iw_mode
== IEEE80211_IF_TYPE_IBSS
)
2459 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_SLOT_MSK
;
2461 priv
->staging_rxon
.flags
|= RXON_FLG_BAND_24G_MSK
;
2462 priv
->staging_rxon
.flags
|= RXON_FLG_AUTO_DETECT_MSK
;
2463 priv
->staging_rxon
.flags
&= ~RXON_FLG_CCK_MSK
;
2468 * initialize rxon structure with default values from eeprom
2470 static void iwl3945_connection_init_rx_config(struct iwl3945_priv
*priv
)
2472 const struct iwl3945_channel_info
*ch_info
;
2474 memset(&priv
->staging_rxon
, 0, sizeof(priv
->staging_rxon
));
2476 switch (priv
->iw_mode
) {
2477 case IEEE80211_IF_TYPE_AP
:
2478 priv
->staging_rxon
.dev_type
= RXON_DEV_TYPE_AP
;
2481 case IEEE80211_IF_TYPE_STA
:
2482 priv
->staging_rxon
.dev_type
= RXON_DEV_TYPE_ESS
;
2483 priv
->staging_rxon
.filter_flags
= RXON_FILTER_ACCEPT_GRP_MSK
;
2486 case IEEE80211_IF_TYPE_IBSS
:
2487 priv
->staging_rxon
.dev_type
= RXON_DEV_TYPE_IBSS
;
2488 priv
->staging_rxon
.flags
= RXON_FLG_SHORT_PREAMBLE_MSK
;
2489 priv
->staging_rxon
.filter_flags
= RXON_FILTER_BCON_AWARE_MSK
|
2490 RXON_FILTER_ACCEPT_GRP_MSK
;
2493 case IEEE80211_IF_TYPE_MNTR
:
2494 priv
->staging_rxon
.dev_type
= RXON_DEV_TYPE_SNIFFER
;
2495 priv
->staging_rxon
.filter_flags
= RXON_FILTER_PROMISC_MSK
|
2496 RXON_FILTER_CTL2HOST_MSK
| RXON_FILTER_ACCEPT_GRP_MSK
;
2501 /* TODO: Figure out when short_preamble would be set and cache from
2503 if (!hw_to_local(priv
->hw
)->short_preamble
)
2504 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_PREAMBLE_MSK
;
2506 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_PREAMBLE_MSK
;
2509 ch_info
= iwl3945_get_channel_info(priv
, priv
->phymode
,
2510 le16_to_cpu(priv
->staging_rxon
.channel
));
2513 ch_info
= &priv
->channel_info
[0];
2516 * in some case A channels are all non IBSS
2517 * in this case force B/G channel
2519 if ((priv
->iw_mode
== IEEE80211_IF_TYPE_IBSS
) &&
2520 !(is_channel_ibss(ch_info
)))
2521 ch_info
= &priv
->channel_info
[0];
2523 priv
->staging_rxon
.channel
= cpu_to_le16(ch_info
->channel
);
2524 if (is_channel_a_band(ch_info
))
2525 priv
->phymode
= MODE_IEEE80211A
;
2527 priv
->phymode
= MODE_IEEE80211G
;
2529 iwl3945_set_flags_for_phymode(priv
, priv
->phymode
);
2531 priv
->staging_rxon
.ofdm_basic_rates
=
2532 (IWL_OFDM_RATES_MASK
>> IWL_FIRST_OFDM_RATE
) & 0xFF;
2533 priv
->staging_rxon
.cck_basic_rates
=
2534 (IWL_CCK_RATES_MASK
>> IWL_FIRST_CCK_RATE
) & 0xF;
2537 static int iwl3945_set_mode(struct iwl3945_priv
*priv
, int mode
)
2539 if (mode
== IEEE80211_IF_TYPE_IBSS
) {
2540 const struct iwl3945_channel_info
*ch_info
;
2542 ch_info
= iwl3945_get_channel_info(priv
,
2544 le16_to_cpu(priv
->staging_rxon
.channel
));
2546 if (!ch_info
|| !is_channel_ibss(ch_info
)) {
2547 IWL_ERROR("channel %d not IBSS channel\n",
2548 le16_to_cpu(priv
->staging_rxon
.channel
));
2553 priv
->iw_mode
= mode
;
2555 iwl3945_connection_init_rx_config(priv
);
2556 memcpy(priv
->staging_rxon
.node_addr
, priv
->mac_addr
, ETH_ALEN
);
2558 iwl3945_clear_stations_table(priv
);
2560 /* dont commit rxon if rf-kill is on*/
2561 if (!iwl3945_is_ready_rf(priv
))
2564 cancel_delayed_work(&priv
->scan_check
);
2565 if (iwl3945_scan_cancel_timeout(priv
, 100)) {
2566 IWL_WARNING("Aborted scan still in progress after 100ms\n");
2567 IWL_DEBUG_MAC80211("leaving - scan abort failed.\n");
2571 iwl3945_commit_rxon(priv
);
2576 static void iwl3945_build_tx_cmd_hwcrypto(struct iwl3945_priv
*priv
,
2577 struct ieee80211_tx_control
*ctl
,
2578 struct iwl3945_cmd
*cmd
,
2579 struct sk_buff
*skb_frag
,
2582 struct iwl3945_hw_key
*keyinfo
= &priv
->stations
[ctl
->key_idx
].keyinfo
;
2584 switch (keyinfo
->alg
) {
2586 cmd
->cmd
.tx
.sec_ctl
= TX_CMD_SEC_CCM
;
2587 memcpy(cmd
->cmd
.tx
.key
, keyinfo
->key
, keyinfo
->keylen
);
2588 IWL_DEBUG_TX("tx_cmd with aes hwcrypto\n");
2593 cmd
->cmd
.tx
.sec_ctl
= TX_CMD_SEC_TKIP
;
2596 memcpy(cmd
->cmd
.tx
.tkip_mic
.byte
, skb_frag
->tail
- 8,
2599 memset(cmd
->cmd
.tx
.tkip_mic
.byte
, 0, 8);
2604 cmd
->cmd
.tx
.sec_ctl
= TX_CMD_SEC_WEP
|
2605 (ctl
->key_idx
& TX_CMD_SEC_MSK
) << TX_CMD_SEC_SHIFT
;
2607 if (keyinfo
->keylen
== 13)
2608 cmd
->cmd
.tx
.sec_ctl
|= TX_CMD_SEC_KEY128
;
2610 memcpy(&cmd
->cmd
.tx
.key
[3], keyinfo
->key
, keyinfo
->keylen
);
2612 IWL_DEBUG_TX("Configuring packet for WEP encryption "
2613 "with key %d\n", ctl
->key_idx
);
2617 printk(KERN_ERR
"Unknown encode alg %d\n", keyinfo
->alg
);
2623 * handle build REPLY_TX command notification.
2625 static void iwl3945_build_tx_cmd_basic(struct iwl3945_priv
*priv
,
2626 struct iwl3945_cmd
*cmd
,
2627 struct ieee80211_tx_control
*ctrl
,
2628 struct ieee80211_hdr
*hdr
,
2629 int is_unicast
, u8 std_id
)
2632 u16 fc
= le16_to_cpu(hdr
->frame_control
);
2633 __le32 tx_flags
= cmd
->cmd
.tx
.tx_flags
;
2635 cmd
->cmd
.tx
.stop_time
.life_time
= TX_CMD_LIFE_TIME_INFINITE
;
2636 if (!(ctrl
->flags
& IEEE80211_TXCTL_NO_ACK
)) {
2637 tx_flags
|= TX_CMD_FLG_ACK_MSK
;
2638 if ((fc
& IEEE80211_FCTL_FTYPE
) == IEEE80211_FTYPE_MGMT
)
2639 tx_flags
|= TX_CMD_FLG_SEQ_CTL_MSK
;
2640 if (ieee80211_is_probe_response(fc
) &&
2641 !(le16_to_cpu(hdr
->seq_ctrl
) & 0xf))
2642 tx_flags
|= TX_CMD_FLG_TSF_MSK
;
2644 tx_flags
&= (~TX_CMD_FLG_ACK_MSK
);
2645 tx_flags
|= TX_CMD_FLG_SEQ_CTL_MSK
;
2648 cmd
->cmd
.tx
.sta_id
= std_id
;
2649 if (ieee80211_get_morefrag(hdr
))
2650 tx_flags
|= TX_CMD_FLG_MORE_FRAG_MSK
;
2652 qc
= ieee80211_get_qos_ctrl(hdr
);
2654 cmd
->cmd
.tx
.tid_tspec
= (u8
) (le16_to_cpu(*qc
) & 0xf);
2655 tx_flags
&= ~TX_CMD_FLG_SEQ_CTL_MSK
;
2657 tx_flags
|= TX_CMD_FLG_SEQ_CTL_MSK
;
2659 if (ctrl
->flags
& IEEE80211_TXCTL_USE_RTS_CTS
) {
2660 tx_flags
|= TX_CMD_FLG_RTS_MSK
;
2661 tx_flags
&= ~TX_CMD_FLG_CTS_MSK
;
2662 } else if (ctrl
->flags
& IEEE80211_TXCTL_USE_CTS_PROTECT
) {
2663 tx_flags
&= ~TX_CMD_FLG_RTS_MSK
;
2664 tx_flags
|= TX_CMD_FLG_CTS_MSK
;
2667 if ((tx_flags
& TX_CMD_FLG_RTS_MSK
) || (tx_flags
& TX_CMD_FLG_CTS_MSK
))
2668 tx_flags
|= TX_CMD_FLG_FULL_TXOP_PROT_MSK
;
2670 tx_flags
&= ~(TX_CMD_FLG_ANT_SEL_MSK
);
2671 if ((fc
& IEEE80211_FCTL_FTYPE
) == IEEE80211_FTYPE_MGMT
) {
2672 if ((fc
& IEEE80211_FCTL_STYPE
) == IEEE80211_STYPE_ASSOC_REQ
||
2673 (fc
& IEEE80211_FCTL_STYPE
) == IEEE80211_STYPE_REASSOC_REQ
)
2674 cmd
->cmd
.tx
.timeout
.pm_frame_timeout
= cpu_to_le16(3);
2676 cmd
->cmd
.tx
.timeout
.pm_frame_timeout
= cpu_to_le16(2);
2678 cmd
->cmd
.tx
.timeout
.pm_frame_timeout
= 0;
2680 cmd
->cmd
.tx
.driver_txop
= 0;
2681 cmd
->cmd
.tx
.tx_flags
= tx_flags
;
2682 cmd
->cmd
.tx
.next_frame_len
= 0;
2686 * iwl3945_get_sta_id - Find station's index within station table
2688 static int iwl3945_get_sta_id(struct iwl3945_priv
*priv
, struct ieee80211_hdr
*hdr
)
2691 u16 fc
= le16_to_cpu(hdr
->frame_control
);
2693 /* If this frame is broadcast or management, use broadcast station id */
2694 if (((fc
& IEEE80211_FCTL_FTYPE
) != IEEE80211_FTYPE_DATA
) ||
2695 is_multicast_ether_addr(hdr
->addr1
))
2696 return priv
->hw_setting
.bcast_sta_id
;
2698 switch (priv
->iw_mode
) {
2700 /* If we are a client station in a BSS network, use the special
2701 * AP station entry (that's the only station we communicate with) */
2702 case IEEE80211_IF_TYPE_STA
:
2705 /* If we are an AP, then find the station, or use BCAST */
2706 case IEEE80211_IF_TYPE_AP
:
2707 sta_id
= iwl3945_hw_find_station(priv
, hdr
->addr1
);
2708 if (sta_id
!= IWL_INVALID_STATION
)
2710 return priv
->hw_setting
.bcast_sta_id
;
2712 /* If this frame is going out to an IBSS network, find the station,
2713 * or create a new station table entry */
2714 case IEEE80211_IF_TYPE_IBSS
: {
2715 DECLARE_MAC_BUF(mac
);
2717 /* Create new station table entry */
2718 sta_id
= iwl3945_hw_find_station(priv
, hdr
->addr1
);
2719 if (sta_id
!= IWL_INVALID_STATION
)
2722 sta_id
= iwl3945_add_station(priv
, hdr
->addr1
, 0, CMD_ASYNC
);
2724 if (sta_id
!= IWL_INVALID_STATION
)
2727 IWL_DEBUG_DROP("Station %s not in station map. "
2728 "Defaulting to broadcast...\n",
2729 print_mac(mac
, hdr
->addr1
));
2730 iwl3945_print_hex_dump(IWL_DL_DROP
, (u8
*) hdr
, sizeof(*hdr
));
2731 return priv
->hw_setting
.bcast_sta_id
;
2734 IWL_WARNING("Unknown mode of operation: %d", priv
->iw_mode
);
2735 return priv
->hw_setting
.bcast_sta_id
;
2740 * start REPLY_TX command process
2742 static int iwl3945_tx_skb(struct iwl3945_priv
*priv
,
2743 struct sk_buff
*skb
, struct ieee80211_tx_control
*ctl
)
2745 struct ieee80211_hdr
*hdr
= (struct ieee80211_hdr
*)skb
->data
;
2746 struct iwl3945_tfd_frame
*tfd
;
2748 int txq_id
= ctl
->queue
;
2749 struct iwl3945_tx_queue
*txq
= NULL
;
2750 struct iwl3945_queue
*q
= NULL
;
2751 dma_addr_t phys_addr
;
2752 dma_addr_t txcmd_phys
;
2753 struct iwl3945_cmd
*out_cmd
= NULL
;
2754 u16 len
, idx
, len_org
;
2755 u8 id
, hdr_len
, unicast
;
2760 u8 wait_write_ptr
= 0;
2761 unsigned long flags
;
2764 spin_lock_irqsave(&priv
->lock
, flags
);
2765 if (iwl3945_is_rfkill(priv
)) {
2766 IWL_DEBUG_DROP("Dropping - RF KILL\n");
2770 if (!priv
->interface_id
) {
2771 IWL_DEBUG_DROP("Dropping - !priv->interface_id\n");
2775 if ((ctl
->tx_rate
& 0xFF) == IWL_INVALID_RATE
) {
2776 IWL_ERROR("ERROR: No TX rate available.\n");
2780 unicast
= !is_multicast_ether_addr(hdr
->addr1
);
2783 fc
= le16_to_cpu(hdr
->frame_control
);
2785 #ifdef CONFIG_IWL3945_DEBUG
2786 if (ieee80211_is_auth(fc
))
2787 IWL_DEBUG_TX("Sending AUTH frame\n");
2788 else if (ieee80211_is_assoc_request(fc
))
2789 IWL_DEBUG_TX("Sending ASSOC frame\n");
2790 else if (ieee80211_is_reassoc_request(fc
))
2791 IWL_DEBUG_TX("Sending REASSOC frame\n");
2794 /* drop all data frame if we are not associated */
2795 if (!iwl3945_is_associated(priv
) && !priv
->assoc_id
&&
2796 ((fc
& IEEE80211_FCTL_FTYPE
) == IEEE80211_FTYPE_DATA
)) {
2797 IWL_DEBUG_DROP("Dropping - !iwl3945_is_associated\n");
2801 spin_unlock_irqrestore(&priv
->lock
, flags
);
2803 hdr_len
= ieee80211_get_hdrlen(fc
);
2805 /* Find (or create) index into station table for destination station */
2806 sta_id
= iwl3945_get_sta_id(priv
, hdr
);
2807 if (sta_id
== IWL_INVALID_STATION
) {
2808 DECLARE_MAC_BUF(mac
);
2810 IWL_DEBUG_DROP("Dropping - INVALID STATION: %s\n",
2811 print_mac(mac
, hdr
->addr1
));
2815 IWL_DEBUG_RATE("station Id %d\n", sta_id
);
2817 qc
= ieee80211_get_qos_ctrl(hdr
);
2819 u8 tid
= (u8
)(le16_to_cpu(*qc
) & 0xf);
2820 seq_number
= priv
->stations
[sta_id
].tid
[tid
].seq_number
&
2822 hdr
->seq_ctrl
= cpu_to_le16(seq_number
) |
2824 __constant_cpu_to_le16(IEEE80211_SCTL_FRAG
));
2828 /* Descriptor for chosen Tx queue */
2829 txq
= &priv
->txq
[txq_id
];
2832 spin_lock_irqsave(&priv
->lock
, flags
);
2834 /* Set up first empty TFD within this queue's circular TFD buffer */
2835 tfd
= &txq
->bd
[q
->write_ptr
];
2836 memset(tfd
, 0, sizeof(*tfd
));
2837 control_flags
= (u32
*) tfd
;
2838 idx
= get_cmd_index(q
, q
->write_ptr
, 0);
2840 /* Set up driver data for this TFD */
2841 memset(&(txq
->txb
[q
->write_ptr
]), 0, sizeof(struct iwl3945_tx_info
));
2842 txq
->txb
[q
->write_ptr
].skb
[0] = skb
;
2843 memcpy(&(txq
->txb
[q
->write_ptr
].status
.control
),
2844 ctl
, sizeof(struct ieee80211_tx_control
));
2846 /* Init first empty entry in queue's array of Tx/cmd buffers */
2847 out_cmd
= &txq
->cmd
[idx
];
2848 memset(&out_cmd
->hdr
, 0, sizeof(out_cmd
->hdr
));
2849 memset(&out_cmd
->cmd
.tx
, 0, sizeof(out_cmd
->cmd
.tx
));
2852 * Set up the Tx-command (not MAC!) header.
2853 * Store the chosen Tx queue and TFD index within the sequence field;
2854 * after Tx, uCode's Tx response will return this value so driver can
2855 * locate the frame within the tx queue and do post-tx processing.
2857 out_cmd
->hdr
.cmd
= REPLY_TX
;
2858 out_cmd
->hdr
.sequence
= cpu_to_le16((u16
)(QUEUE_TO_SEQ(txq_id
) |
2859 INDEX_TO_SEQ(q
->write_ptr
)));
2861 /* Copy MAC header from skb into command buffer */
2862 memcpy(out_cmd
->cmd
.tx
.hdr
, hdr
, hdr_len
);
2865 * Use the first empty entry in this queue's command buffer array
2866 * to contain the Tx command and MAC header concatenated together
2867 * (payload data will be in another buffer).
2868 * Size of this varies, due to varying MAC header length.
2869 * If end is not dword aligned, we'll have 2 extra bytes at the end
2870 * of the MAC header (device reads on dword boundaries).
2871 * We'll tell device about this padding later.
2873 len
= priv
->hw_setting
.tx_cmd_len
+
2874 sizeof(struct iwl3945_cmd_header
) + hdr_len
;
2877 len
= (len
+ 3) & ~3;
2884 /* Physical address of this Tx command's header (not MAC header!),
2885 * within command buffer array. */
2886 txcmd_phys
= txq
->dma_addr_cmd
+ sizeof(struct iwl3945_cmd
) * idx
+
2887 offsetof(struct iwl3945_cmd
, hdr
);
2889 /* Add buffer containing Tx command and MAC(!) header to TFD's
2891 iwl3945_hw_txq_attach_buf_to_tfd(priv
, tfd
, txcmd_phys
, len
);
2893 if (!(ctl
->flags
& IEEE80211_TXCTL_DO_NOT_ENCRYPT
))
2894 iwl3945_build_tx_cmd_hwcrypto(priv
, ctl
, out_cmd
, skb
, 0);
2896 /* Set up TFD's 2nd entry to point directly to remainder of skb,
2897 * if any (802.11 null frames have no payload). */
2898 len
= skb
->len
- hdr_len
;
2900 phys_addr
= pci_map_single(priv
->pci_dev
, skb
->data
+ hdr_len
,
2901 len
, PCI_DMA_TODEVICE
);
2902 iwl3945_hw_txq_attach_buf_to_tfd(priv
, tfd
, phys_addr
, len
);
2906 /* If there is no payload, then we use only one Tx buffer */
2907 *control_flags
= TFD_CTL_COUNT_SET(1);
2909 /* Else use 2 buffers.
2910 * Tell 3945 about any padding after MAC header */
2911 *control_flags
= TFD_CTL_COUNT_SET(2) |
2912 TFD_CTL_PAD_SET(U32_PAD(len
));
2914 /* Total # bytes to be transmitted */
2915 len
= (u16
)skb
->len
;
2916 out_cmd
->cmd
.tx
.len
= cpu_to_le16(len
);
2918 /* TODO need this for burst mode later on */
2919 iwl3945_build_tx_cmd_basic(priv
, out_cmd
, ctl
, hdr
, unicast
, sta_id
);
2921 /* set is_hcca to 0; it probably will never be implemented */
2922 iwl3945_hw_build_tx_cmd_rate(priv
, out_cmd
, ctl
, hdr
, sta_id
, 0);
2924 out_cmd
->cmd
.tx
.tx_flags
&= ~TX_CMD_FLG_ANT_A_MSK
;
2925 out_cmd
->cmd
.tx
.tx_flags
&= ~TX_CMD_FLG_ANT_B_MSK
;
2927 if (!ieee80211_get_morefrag(hdr
)) {
2928 txq
->need_update
= 1;
2930 u8 tid
= (u8
)(le16_to_cpu(*qc
) & 0xf);
2931 priv
->stations
[sta_id
].tid
[tid
].seq_number
= seq_number
;
2935 txq
->need_update
= 0;
2938 iwl3945_print_hex_dump(IWL_DL_TX
, out_cmd
->cmd
.payload
,
2939 sizeof(out_cmd
->cmd
.tx
));
2941 iwl3945_print_hex_dump(IWL_DL_TX
, (u8
*)out_cmd
->cmd
.tx
.hdr
,
2942 ieee80211_get_hdrlen(fc
));
2944 /* Tell device the write index *just past* this latest filled TFD */
2945 q
->write_ptr
= iwl3945_queue_inc_wrap(q
->write_ptr
, q
->n_bd
);
2946 rc
= iwl3945_tx_queue_update_write_ptr(priv
, txq
);
2947 spin_unlock_irqrestore(&priv
->lock
, flags
);
2952 if ((iwl3945_queue_space(q
) < q
->high_mark
)
2953 && priv
->mac80211_registered
) {
2954 if (wait_write_ptr
) {
2955 spin_lock_irqsave(&priv
->lock
, flags
);
2956 txq
->need_update
= 1;
2957 iwl3945_tx_queue_update_write_ptr(priv
, txq
);
2958 spin_unlock_irqrestore(&priv
->lock
, flags
);
2961 ieee80211_stop_queue(priv
->hw
, ctl
->queue
);
2967 spin_unlock_irqrestore(&priv
->lock
, flags
);
2972 static void iwl3945_set_rate(struct iwl3945_priv
*priv
)
2974 const struct ieee80211_hw_mode
*hw
= NULL
;
2975 struct ieee80211_rate
*rate
;
2978 hw
= iwl3945_get_hw_mode(priv
, priv
->phymode
);
2980 IWL_ERROR("Failed to set rate: unable to get hw mode\n");
2984 priv
->active_rate
= 0;
2985 priv
->active_rate_basic
= 0;
2987 IWL_DEBUG_RATE("Setting rates for 802.11%c\n",
2988 hw
->mode
== MODE_IEEE80211A
?
2989 'a' : ((hw
->mode
== MODE_IEEE80211B
) ? 'b' : 'g'));
2991 for (i
= 0; i
< hw
->num_rates
; i
++) {
2992 rate
= &(hw
->rates
[i
]);
2993 if ((rate
->val
< IWL_RATE_COUNT
) &&
2994 (rate
->flags
& IEEE80211_RATE_SUPPORTED
)) {
2995 IWL_DEBUG_RATE("Adding rate index %d (plcp %d)%s\n",
2996 rate
->val
, iwl3945_rates
[rate
->val
].plcp
,
2997 (rate
->flags
& IEEE80211_RATE_BASIC
) ?
2999 priv
->active_rate
|= (1 << rate
->val
);
3000 if (rate
->flags
& IEEE80211_RATE_BASIC
)
3001 priv
->active_rate_basic
|= (1 << rate
->val
);
3003 IWL_DEBUG_RATE("Not adding rate %d (plcp %d)\n",
3004 rate
->val
, iwl3945_rates
[rate
->val
].plcp
);
3007 IWL_DEBUG_RATE("Set active_rate = %0x, active_rate_basic = %0x\n",
3008 priv
->active_rate
, priv
->active_rate_basic
);
3011 * If a basic rate is configured, then use it (adding IWL_RATE_1M_MASK)
3012 * otherwise set it to the default of all CCK rates and 6, 12, 24 for
3015 if (priv
->active_rate_basic
& IWL_CCK_BASIC_RATES_MASK
)
3016 priv
->staging_rxon
.cck_basic_rates
=
3017 ((priv
->active_rate_basic
&
3018 IWL_CCK_RATES_MASK
) >> IWL_FIRST_CCK_RATE
) & 0xF;
3020 priv
->staging_rxon
.cck_basic_rates
=
3021 (IWL_CCK_BASIC_RATES_MASK
>> IWL_FIRST_CCK_RATE
) & 0xF;
3023 if (priv
->active_rate_basic
& IWL_OFDM_BASIC_RATES_MASK
)
3024 priv
->staging_rxon
.ofdm_basic_rates
=
3025 ((priv
->active_rate_basic
&
3026 (IWL_OFDM_BASIC_RATES_MASK
| IWL_RATE_6M_MASK
)) >>
3027 IWL_FIRST_OFDM_RATE
) & 0xFF;
3029 priv
->staging_rxon
.ofdm_basic_rates
=
3030 (IWL_OFDM_BASIC_RATES_MASK
>> IWL_FIRST_OFDM_RATE
) & 0xFF;
3033 static void iwl3945_radio_kill_sw(struct iwl3945_priv
*priv
, int disable_radio
)
3035 unsigned long flags
;
3037 if (!!disable_radio
== test_bit(STATUS_RF_KILL_SW
, &priv
->status
))
3040 IWL_DEBUG_RF_KILL("Manual SW RF KILL set to: RADIO %s\n",
3041 disable_radio
? "OFF" : "ON");
3043 if (disable_radio
) {
3044 iwl3945_scan_cancel(priv
);
3045 /* FIXME: This is a workaround for AP */
3046 if (priv
->iw_mode
!= IEEE80211_IF_TYPE_AP
) {
3047 spin_lock_irqsave(&priv
->lock
, flags
);
3048 iwl3945_write32(priv
, CSR_UCODE_DRV_GP1_SET
,
3049 CSR_UCODE_SW_BIT_RFKILL
);
3050 spin_unlock_irqrestore(&priv
->lock
, flags
);
3051 iwl3945_send_card_state(priv
, CARD_STATE_CMD_DISABLE
, 0);
3052 set_bit(STATUS_RF_KILL_SW
, &priv
->status
);
3057 spin_lock_irqsave(&priv
->lock
, flags
);
3058 iwl3945_write32(priv
, CSR_UCODE_DRV_GP1_CLR
, CSR_UCODE_SW_BIT_RFKILL
);
3060 clear_bit(STATUS_RF_KILL_SW
, &priv
->status
);
3061 spin_unlock_irqrestore(&priv
->lock
, flags
);
3066 spin_lock_irqsave(&priv
->lock
, flags
);
3067 iwl3945_read32(priv
, CSR_UCODE_DRV_GP1
);
3068 if (!iwl3945_grab_nic_access(priv
))
3069 iwl3945_release_nic_access(priv
);
3070 spin_unlock_irqrestore(&priv
->lock
, flags
);
3072 if (test_bit(STATUS_RF_KILL_HW
, &priv
->status
)) {
3073 IWL_DEBUG_RF_KILL("Can not turn radio back on - "
3074 "disabled by HW switch\n");
3078 queue_work(priv
->workqueue
, &priv
->restart
);
3082 void iwl3945_set_decrypted_flag(struct iwl3945_priv
*priv
, struct sk_buff
*skb
,
3083 u32 decrypt_res
, struct ieee80211_rx_status
*stats
)
3086 le16_to_cpu(((struct ieee80211_hdr
*)skb
->data
)->frame_control
);
3088 if (priv
->active_rxon
.filter_flags
& RXON_FILTER_DIS_DECRYPT_MSK
)
3091 if (!(fc
& IEEE80211_FCTL_PROTECTED
))
3094 IWL_DEBUG_RX("decrypt_res:0x%x\n", decrypt_res
);
3095 switch (decrypt_res
& RX_RES_STATUS_SEC_TYPE_MSK
) {
3096 case RX_RES_STATUS_SEC_TYPE_TKIP
:
3097 if ((decrypt_res
& RX_RES_STATUS_DECRYPT_TYPE_MSK
) ==
3098 RX_RES_STATUS_BAD_ICV_MIC
)
3099 stats
->flag
|= RX_FLAG_MMIC_ERROR
;
3100 case RX_RES_STATUS_SEC_TYPE_WEP
:
3101 case RX_RES_STATUS_SEC_TYPE_CCMP
:
3102 if ((decrypt_res
& RX_RES_STATUS_DECRYPT_TYPE_MSK
) ==
3103 RX_RES_STATUS_DECRYPT_OK
) {
3104 IWL_DEBUG_RX("hw decrypt successfully!!!\n");
3105 stats
->flag
|= RX_FLAG_DECRYPTED
;
3114 #define IWL_PACKET_RETRY_TIME HZ
3116 int iwl3945_is_duplicate_packet(struct iwl3945_priv
*priv
, struct ieee80211_hdr
*header
)
3118 u16 sc
= le16_to_cpu(header
->seq_ctrl
);
3119 u16 seq
= (sc
& IEEE80211_SCTL_SEQ
) >> 4;
3120 u16 frag
= sc
& IEEE80211_SCTL_FRAG
;
3121 u16
*last_seq
, *last_frag
;
3122 unsigned long *last_time
;
3124 switch (priv
->iw_mode
) {
3125 case IEEE80211_IF_TYPE_IBSS
:{
3126 struct list_head
*p
;
3127 struct iwl3945_ibss_seq
*entry
= NULL
;
3128 u8
*mac
= header
->addr2
;
3129 int index
= mac
[5] & (IWL_IBSS_MAC_HASH_SIZE
- 1);
3131 __list_for_each(p
, &priv
->ibss_mac_hash
[index
]) {
3132 entry
= list_entry(p
, struct iwl3945_ibss_seq
, list
);
3133 if (!compare_ether_addr(entry
->mac
, mac
))
3136 if (p
== &priv
->ibss_mac_hash
[index
]) {
3137 entry
= kzalloc(sizeof(*entry
), GFP_ATOMIC
);
3139 IWL_ERROR("Cannot malloc new mac entry\n");
3142 memcpy(entry
->mac
, mac
, ETH_ALEN
);
3143 entry
->seq_num
= seq
;
3144 entry
->frag_num
= frag
;
3145 entry
->packet_time
= jiffies
;
3146 list_add(&entry
->list
, &priv
->ibss_mac_hash
[index
]);
3149 last_seq
= &entry
->seq_num
;
3150 last_frag
= &entry
->frag_num
;
3151 last_time
= &entry
->packet_time
;
3154 case IEEE80211_IF_TYPE_STA
:
3155 last_seq
= &priv
->last_seq_num
;
3156 last_frag
= &priv
->last_frag_num
;
3157 last_time
= &priv
->last_packet_time
;
3162 if ((*last_seq
== seq
) &&
3163 time_after(*last_time
+ IWL_PACKET_RETRY_TIME
, jiffies
)) {
3164 if (*last_frag
== frag
)
3166 if (*last_frag
+ 1 != frag
)
3167 /* out-of-order fragment */
3173 *last_time
= jiffies
;
3180 #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT
3182 #include "iwl-spectrum.h"
3184 #define BEACON_TIME_MASK_LOW 0x00FFFFFF
3185 #define BEACON_TIME_MASK_HIGH 0xFF000000
3186 #define TIME_UNIT 1024
3189 * extended beacon time format
3190 * time in usec will be changed into a 32-bit value in 8:24 format
3191 * the high 1 byte is the beacon counts
3192 * the lower 3 bytes is the time in usec within one beacon interval
3195 static u32
iwl3945_usecs_to_beacons(u32 usec
, u32 beacon_interval
)
3199 u32 interval
= beacon_interval
* 1024;
3201 if (!interval
|| !usec
)
3204 quot
= (usec
/ interval
) & (BEACON_TIME_MASK_HIGH
>> 24);
3205 rem
= (usec
% interval
) & BEACON_TIME_MASK_LOW
;
3207 return (quot
<< 24) + rem
;
3210 /* base is usually what we get from ucode with each received frame,
3211 * the same as HW timer counter counting down
3214 static __le32
iwl3945_add_beacon_time(u32 base
, u32 addon
, u32 beacon_interval
)
3216 u32 base_low
= base
& BEACON_TIME_MASK_LOW
;
3217 u32 addon_low
= addon
& BEACON_TIME_MASK_LOW
;
3218 u32 interval
= beacon_interval
* TIME_UNIT
;
3219 u32 res
= (base
& BEACON_TIME_MASK_HIGH
) +
3220 (addon
& BEACON_TIME_MASK_HIGH
);
3222 if (base_low
> addon_low
)
3223 res
+= base_low
- addon_low
;
3224 else if (base_low
< addon_low
) {
3225 res
+= interval
+ base_low
- addon_low
;
3230 return cpu_to_le32(res
);
3233 static int iwl3945_get_measurement(struct iwl3945_priv
*priv
,
3234 struct ieee80211_measurement_params
*params
,
3237 struct iwl3945_spectrum_cmd spectrum
;
3238 struct iwl3945_rx_packet
*res
;
3239 struct iwl3945_host_cmd cmd
= {
3240 .id
= REPLY_SPECTRUM_MEASUREMENT_CMD
,
3241 .data
= (void *)&spectrum
,
3242 .meta
.flags
= CMD_WANT_SKB
,
3244 u32 add_time
= le64_to_cpu(params
->start_time
);
3246 int spectrum_resp_status
;
3247 int duration
= le16_to_cpu(params
->duration
);
3249 if (iwl3945_is_associated(priv
))
3251 iwl3945_usecs_to_beacons(
3252 le64_to_cpu(params
->start_time
) - priv
->last_tsf
,
3253 le16_to_cpu(priv
->rxon_timing
.beacon_interval
));
3255 memset(&spectrum
, 0, sizeof(spectrum
));
3257 spectrum
.channel_count
= cpu_to_le16(1);
3259 RXON_FLG_TSF2HOST_MSK
| RXON_FLG_ANT_A_MSK
| RXON_FLG_DIS_DIV_MSK
;
3260 spectrum
.filter_flags
= MEASUREMENT_FILTER_FLAG
;
3261 cmd
.len
= sizeof(spectrum
);
3262 spectrum
.len
= cpu_to_le16(cmd
.len
- sizeof(spectrum
.len
));
3264 if (iwl3945_is_associated(priv
))
3265 spectrum
.start_time
=
3266 iwl3945_add_beacon_time(priv
->last_beacon_time
,
3268 le16_to_cpu(priv
->rxon_timing
.beacon_interval
));
3270 spectrum
.start_time
= 0;
3272 spectrum
.channels
[0].duration
= cpu_to_le32(duration
* TIME_UNIT
);
3273 spectrum
.channels
[0].channel
= params
->channel
;
3274 spectrum
.channels
[0].type
= type
;
3275 if (priv
->active_rxon
.flags
& RXON_FLG_BAND_24G_MSK
)
3276 spectrum
.flags
|= RXON_FLG_BAND_24G_MSK
|
3277 RXON_FLG_AUTO_DETECT_MSK
| RXON_FLG_TGG_PROTECT_MSK
;
3279 rc
= iwl3945_send_cmd_sync(priv
, &cmd
);
3283 res
= (struct iwl3945_rx_packet
*)cmd
.meta
.u
.skb
->data
;
3284 if (res
->hdr
.flags
& IWL_CMD_FAILED_MSK
) {
3285 IWL_ERROR("Bad return from REPLY_RX_ON_ASSOC command\n");
3289 spectrum_resp_status
= le16_to_cpu(res
->u
.spectrum
.status
);
3290 switch (spectrum_resp_status
) {
3291 case 0: /* Command will be handled */
3292 if (res
->u
.spectrum
.id
!= 0xff) {
3293 IWL_DEBUG_INFO("Replaced existing measurement: %d\n",
3294 res
->u
.spectrum
.id
);
3295 priv
->measurement_status
&= ~MEASUREMENT_READY
;
3297 priv
->measurement_status
|= MEASUREMENT_ACTIVE
;
3301 case 1: /* Command will not be handled */
3306 dev_kfree_skb_any(cmd
.meta
.u
.skb
);
3312 static void iwl3945_txstatus_to_ieee(struct iwl3945_priv
*priv
,
3313 struct iwl3945_tx_info
*tx_sta
)
3316 tx_sta
->status
.ack_signal
= 0;
3317 tx_sta
->status
.excessive_retries
= 0;
3318 tx_sta
->status
.queue_length
= 0;
3319 tx_sta
->status
.queue_number
= 0;
3322 ieee80211_tx_status_irqsafe(priv
->hw
,
3323 tx_sta
->skb
[0], &(tx_sta
->status
));
3325 ieee80211_tx_status(priv
->hw
,
3326 tx_sta
->skb
[0], &(tx_sta
->status
));
3328 tx_sta
->skb
[0] = NULL
;
3332 * iwl3945_tx_queue_reclaim - Reclaim Tx queue entries already Tx'd
3334 * When FW advances 'R' index, all entries between old and new 'R' index
3335 * need to be reclaimed. As result, some free space forms. If there is
3336 * enough free space (> low mark), wake the stack that feeds us.
3338 static int iwl3945_tx_queue_reclaim(struct iwl3945_priv
*priv
, int txq_id
, int index
)
3340 struct iwl3945_tx_queue
*txq
= &priv
->txq
[txq_id
];
3341 struct iwl3945_queue
*q
= &txq
->q
;
3344 if ((index
>= q
->n_bd
) || (x2_queue_used(q
, index
) == 0)) {
3345 IWL_ERROR("Read index for DMA queue txq id (%d), index %d, "
3346 "is out of range [0-%d] %d %d.\n", txq_id
,
3347 index
, q
->n_bd
, q
->write_ptr
, q
->read_ptr
);
3351 for (index
= iwl3945_queue_inc_wrap(index
, q
->n_bd
);
3352 q
->read_ptr
!= index
;
3353 q
->read_ptr
= iwl3945_queue_inc_wrap(q
->read_ptr
, q
->n_bd
)) {
3354 if (txq_id
!= IWL_CMD_QUEUE_NUM
) {
3355 iwl3945_txstatus_to_ieee(priv
,
3356 &(txq
->txb
[txq
->q
.read_ptr
]));
3357 iwl3945_hw_txq_free_tfd(priv
, txq
);
3358 } else if (nfreed
> 1) {
3359 IWL_ERROR("HCMD skipped: index (%d) %d %d\n", index
,
3360 q
->write_ptr
, q
->read_ptr
);
3361 queue_work(priv
->workqueue
, &priv
->restart
);
3366 if (iwl3945_queue_space(q
) > q
->low_mark
&& (txq_id
>= 0) &&
3367 (txq_id
!= IWL_CMD_QUEUE_NUM
) &&
3368 priv
->mac80211_registered
)
3369 ieee80211_wake_queue(priv
->hw
, txq_id
);
3375 static int iwl3945_is_tx_success(u32 status
)
3377 return (status
& 0xFF) == 0x1;
3380 /******************************************************************************
3382 * Generic RX handler implementations
3384 ******************************************************************************/
3386 * iwl3945_rx_reply_tx - Handle Tx response
3388 static void iwl3945_rx_reply_tx(struct iwl3945_priv
*priv
,
3389 struct iwl3945_rx_mem_buffer
*rxb
)
3391 struct iwl3945_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3392 u16 sequence
= le16_to_cpu(pkt
->hdr
.sequence
);
3393 int txq_id
= SEQ_TO_QUEUE(sequence
);
3394 int index
= SEQ_TO_INDEX(sequence
);
3395 struct iwl3945_tx_queue
*txq
= &priv
->txq
[txq_id
];
3396 struct ieee80211_tx_status
*tx_status
;
3397 struct iwl3945_tx_resp
*tx_resp
= (void *)&pkt
->u
.raw
[0];
3398 u32 status
= le32_to_cpu(tx_resp
->status
);
3400 if ((index
>= txq
->q
.n_bd
) || (x2_queue_used(&txq
->q
, index
) == 0)) {
3401 IWL_ERROR("Read index for DMA queue txq_id (%d) index %d "
3402 "is out of range [0-%d] %d %d\n", txq_id
,
3403 index
, txq
->q
.n_bd
, txq
->q
.write_ptr
,
3408 tx_status
= &(txq
->txb
[txq
->q
.read_ptr
].status
);
3410 tx_status
->retry_count
= tx_resp
->failure_frame
;
3411 tx_status
->queue_number
= status
;
3412 tx_status
->queue_length
= tx_resp
->bt_kill_count
;
3413 tx_status
->queue_length
|= tx_resp
->failure_rts
;
3416 iwl3945_is_tx_success(status
) ? IEEE80211_TX_STATUS_ACK
: 0;
3418 tx_status
->control
.tx_rate
= iwl3945_rate_index_from_plcp(tx_resp
->rate
);
3420 IWL_DEBUG_TX("Tx queue %d Status %s (0x%08x) plcp rate %d retries %d\n",
3421 txq_id
, iwl3945_get_tx_fail_reason(status
), status
,
3422 tx_resp
->rate
, tx_resp
->failure_frame
);
3424 IWL_DEBUG_TX_REPLY("Tx queue reclaim %d\n", index
);
3426 iwl3945_tx_queue_reclaim(priv
, txq_id
, index
);
3428 if (iwl_check_bits(status
, TX_ABORT_REQUIRED_MSK
))
3429 IWL_ERROR("TODO: Implement Tx ABORT REQUIRED!!!\n");
3433 static void iwl3945_rx_reply_alive(struct iwl3945_priv
*priv
,
3434 struct iwl3945_rx_mem_buffer
*rxb
)
3436 struct iwl3945_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3437 struct iwl3945_alive_resp
*palive
;
3438 struct delayed_work
*pwork
;
3440 palive
= &pkt
->u
.alive_frame
;
3442 IWL_DEBUG_INFO("Alive ucode status 0x%08X revision "
3444 palive
->is_valid
, palive
->ver_type
,
3445 palive
->ver_subtype
);
3447 if (palive
->ver_subtype
== INITIALIZE_SUBTYPE
) {
3448 IWL_DEBUG_INFO("Initialization Alive received.\n");
3449 memcpy(&priv
->card_alive_init
,
3450 &pkt
->u
.alive_frame
,
3451 sizeof(struct iwl3945_init_alive_resp
));
3452 pwork
= &priv
->init_alive_start
;
3454 IWL_DEBUG_INFO("Runtime Alive received.\n");
3455 memcpy(&priv
->card_alive
, &pkt
->u
.alive_frame
,
3456 sizeof(struct iwl3945_alive_resp
));
3457 pwork
= &priv
->alive_start
;
3458 iwl3945_disable_events(priv
);
3461 /* We delay the ALIVE response by 5ms to
3462 * give the HW RF Kill time to activate... */
3463 if (palive
->is_valid
== UCODE_VALID_OK
)
3464 queue_delayed_work(priv
->workqueue
, pwork
,
3465 msecs_to_jiffies(5));
3467 IWL_WARNING("uCode did not respond OK.\n");
3470 static void iwl3945_rx_reply_add_sta(struct iwl3945_priv
*priv
,
3471 struct iwl3945_rx_mem_buffer
*rxb
)
3473 struct iwl3945_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3475 IWL_DEBUG_RX("Received REPLY_ADD_STA: 0x%02X\n", pkt
->u
.status
);
3479 static void iwl3945_rx_reply_error(struct iwl3945_priv
*priv
,
3480 struct iwl3945_rx_mem_buffer
*rxb
)
3482 struct iwl3945_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3484 IWL_ERROR("Error Reply type 0x%08X cmd %s (0x%02X) "
3485 "seq 0x%04X ser 0x%08X\n",
3486 le32_to_cpu(pkt
->u
.err_resp
.error_type
),
3487 get_cmd_string(pkt
->u
.err_resp
.cmd_id
),
3488 pkt
->u
.err_resp
.cmd_id
,
3489 le16_to_cpu(pkt
->u
.err_resp
.bad_cmd_seq_num
),
3490 le32_to_cpu(pkt
->u
.err_resp
.error_info
));
3493 #define TX_STATUS_ENTRY(x) case TX_STATUS_FAIL_ ## x: return #x
3495 static void iwl3945_rx_csa(struct iwl3945_priv
*priv
, struct iwl3945_rx_mem_buffer
*rxb
)
3497 struct iwl3945_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3498 struct iwl3945_rxon_cmd
*rxon
= (void *)&priv
->active_rxon
;
3499 struct iwl3945_csa_notification
*csa
= &(pkt
->u
.csa_notif
);
3500 IWL_DEBUG_11H("CSA notif: channel %d, status %d\n",
3501 le16_to_cpu(csa
->channel
), le32_to_cpu(csa
->status
));
3502 rxon
->channel
= csa
->channel
;
3503 priv
->staging_rxon
.channel
= csa
->channel
;
3506 static void iwl3945_rx_spectrum_measure_notif(struct iwl3945_priv
*priv
,
3507 struct iwl3945_rx_mem_buffer
*rxb
)
3509 #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT
3510 struct iwl3945_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3511 struct iwl3945_spectrum_notification
*report
= &(pkt
->u
.spectrum_notif
);
3513 if (!report
->state
) {
3514 IWL_DEBUG(IWL_DL_11H
| IWL_DL_INFO
,
3515 "Spectrum Measure Notification: Start\n");
3519 memcpy(&priv
->measure_report
, report
, sizeof(*report
));
3520 priv
->measurement_status
|= MEASUREMENT_READY
;
3524 static void iwl3945_rx_pm_sleep_notif(struct iwl3945_priv
*priv
,
3525 struct iwl3945_rx_mem_buffer
*rxb
)
3527 #ifdef CONFIG_IWL3945_DEBUG
3528 struct iwl3945_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3529 struct iwl3945_sleep_notification
*sleep
= &(pkt
->u
.sleep_notif
);
3530 IWL_DEBUG_RX("sleep mode: %d, src: %d\n",
3531 sleep
->pm_sleep_mode
, sleep
->pm_wakeup_src
);
3535 static void iwl3945_rx_pm_debug_statistics_notif(struct iwl3945_priv
*priv
,
3536 struct iwl3945_rx_mem_buffer
*rxb
)
3538 struct iwl3945_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3539 IWL_DEBUG_RADIO("Dumping %d bytes of unhandled "
3540 "notification for %s:\n",
3541 le32_to_cpu(pkt
->len
), get_cmd_string(pkt
->hdr
.cmd
));
3542 iwl3945_print_hex_dump(IWL_DL_RADIO
, pkt
->u
.raw
, le32_to_cpu(pkt
->len
));
3545 static void iwl3945_bg_beacon_update(struct work_struct
*work
)
3547 struct iwl3945_priv
*priv
=
3548 container_of(work
, struct iwl3945_priv
, beacon_update
);
3549 struct sk_buff
*beacon
;
3551 /* Pull updated AP beacon from mac80211. will fail if not in AP mode */
3552 beacon
= ieee80211_beacon_get(priv
->hw
, priv
->interface_id
, NULL
);
3555 IWL_ERROR("update beacon failed\n");
3559 mutex_lock(&priv
->mutex
);
3560 /* new beacon skb is allocated every time; dispose previous.*/
3561 if (priv
->ibss_beacon
)
3562 dev_kfree_skb(priv
->ibss_beacon
);
3564 priv
->ibss_beacon
= beacon
;
3565 mutex_unlock(&priv
->mutex
);
3567 iwl3945_send_beacon_cmd(priv
);
3570 static void iwl3945_rx_beacon_notif(struct iwl3945_priv
*priv
,
3571 struct iwl3945_rx_mem_buffer
*rxb
)
3573 #ifdef CONFIG_IWL3945_DEBUG
3574 struct iwl3945_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3575 struct iwl3945_beacon_notif
*beacon
= &(pkt
->u
.beacon_status
);
3576 u8 rate
= beacon
->beacon_notify_hdr
.rate
;
3578 IWL_DEBUG_RX("beacon status %x retries %d iss %d "
3579 "tsf %d %d rate %d\n",
3580 le32_to_cpu(beacon
->beacon_notify_hdr
.status
) & TX_STATUS_MSK
,
3581 beacon
->beacon_notify_hdr
.failure_frame
,
3582 le32_to_cpu(beacon
->ibss_mgr_status
),
3583 le32_to_cpu(beacon
->high_tsf
),
3584 le32_to_cpu(beacon
->low_tsf
), rate
);
3587 if ((priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) &&
3588 (!test_bit(STATUS_EXIT_PENDING
, &priv
->status
)))
3589 queue_work(priv
->workqueue
, &priv
->beacon_update
);
3592 /* Service response to REPLY_SCAN_CMD (0x80) */
3593 static void iwl3945_rx_reply_scan(struct iwl3945_priv
*priv
,
3594 struct iwl3945_rx_mem_buffer
*rxb
)
3596 #ifdef CONFIG_IWL3945_DEBUG
3597 struct iwl3945_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3598 struct iwl3945_scanreq_notification
*notif
=
3599 (struct iwl3945_scanreq_notification
*)pkt
->u
.raw
;
3601 IWL_DEBUG_RX("Scan request status = 0x%x\n", notif
->status
);
3605 /* Service SCAN_START_NOTIFICATION (0x82) */
3606 static void iwl3945_rx_scan_start_notif(struct iwl3945_priv
*priv
,
3607 struct iwl3945_rx_mem_buffer
*rxb
)
3609 struct iwl3945_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3610 struct iwl3945_scanstart_notification
*notif
=
3611 (struct iwl3945_scanstart_notification
*)pkt
->u
.raw
;
3612 priv
->scan_start_tsf
= le32_to_cpu(notif
->tsf_low
);
3613 IWL_DEBUG_SCAN("Scan start: "
3615 "(TSF: 0x%08X:%08X) - %d (beacon timer %u)\n",
3617 notif
->band
? "bg" : "a",
3619 notif
->tsf_low
, notif
->status
, notif
->beacon_timer
);
3622 /* Service SCAN_RESULTS_NOTIFICATION (0x83) */
3623 static void iwl3945_rx_scan_results_notif(struct iwl3945_priv
*priv
,
3624 struct iwl3945_rx_mem_buffer
*rxb
)
3626 struct iwl3945_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3627 struct iwl3945_scanresults_notification
*notif
=
3628 (struct iwl3945_scanresults_notification
*)pkt
->u
.raw
;
3630 IWL_DEBUG_SCAN("Scan ch.res: "
3632 "(TSF: 0x%08X:%08X) - %d "
3633 "elapsed=%lu usec (%dms since last)\n",
3635 notif
->band
? "bg" : "a",
3636 le32_to_cpu(notif
->tsf_high
),
3637 le32_to_cpu(notif
->tsf_low
),
3638 le32_to_cpu(notif
->statistics
[0]),
3639 le32_to_cpu(notif
->tsf_low
) - priv
->scan_start_tsf
,
3640 jiffies_to_msecs(elapsed_jiffies
3641 (priv
->last_scan_jiffies
, jiffies
)));
3643 priv
->last_scan_jiffies
= jiffies
;
3644 priv
->next_scan_jiffies
= 0;
3647 /* Service SCAN_COMPLETE_NOTIFICATION (0x84) */
3648 static void iwl3945_rx_scan_complete_notif(struct iwl3945_priv
*priv
,
3649 struct iwl3945_rx_mem_buffer
*rxb
)
3651 struct iwl3945_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3652 struct iwl3945_scancomplete_notification
*scan_notif
= (void *)pkt
->u
.raw
;
3654 IWL_DEBUG_SCAN("Scan complete: %d channels (TSF 0x%08X:%08X) - %d\n",
3655 scan_notif
->scanned_channels
,
3656 scan_notif
->tsf_low
,
3657 scan_notif
->tsf_high
, scan_notif
->status
);
3659 /* The HW is no longer scanning */
3660 clear_bit(STATUS_SCAN_HW
, &priv
->status
);
3662 /* The scan completion notification came in, so kill that timer... */
3663 cancel_delayed_work(&priv
->scan_check
);
3665 IWL_DEBUG_INFO("Scan pass on %sGHz took %dms\n",
3666 (priv
->scan_bands
== 2) ? "2.4" : "5.2",
3667 jiffies_to_msecs(elapsed_jiffies
3668 (priv
->scan_pass_start
, jiffies
)));
3670 /* Remove this scanned band from the list
3671 * of pending bands to scan */
3674 /* If a request to abort was given, or the scan did not succeed
3675 * then we reset the scan state machine and terminate,
3676 * re-queuing another scan if one has been requested */
3677 if (test_bit(STATUS_SCAN_ABORTING
, &priv
->status
)) {
3678 IWL_DEBUG_INFO("Aborted scan completed.\n");
3679 clear_bit(STATUS_SCAN_ABORTING
, &priv
->status
);
3681 /* If there are more bands on this scan pass reschedule */
3682 if (priv
->scan_bands
> 0)
3686 priv
->last_scan_jiffies
= jiffies
;
3687 priv
->next_scan_jiffies
= 0;
3688 IWL_DEBUG_INFO("Setting scan to off\n");
3690 clear_bit(STATUS_SCANNING
, &priv
->status
);
3692 IWL_DEBUG_INFO("Scan took %dms\n",
3693 jiffies_to_msecs(elapsed_jiffies(priv
->scan_start
, jiffies
)));
3695 queue_work(priv
->workqueue
, &priv
->scan_completed
);
3700 priv
->scan_pass_start
= jiffies
;
3701 queue_work(priv
->workqueue
, &priv
->request_scan
);
3704 /* Handle notification from uCode that card's power state is changing
3705 * due to software, hardware, or critical temperature RFKILL */
3706 static void iwl3945_rx_card_state_notif(struct iwl3945_priv
*priv
,
3707 struct iwl3945_rx_mem_buffer
*rxb
)
3709 struct iwl3945_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3710 u32 flags
= le32_to_cpu(pkt
->u
.card_state_notif
.flags
);
3711 unsigned long status
= priv
->status
;
3713 IWL_DEBUG_RF_KILL("Card state received: HW:%s SW:%s\n",
3714 (flags
& HW_CARD_DISABLED
) ? "Kill" : "On",
3715 (flags
& SW_CARD_DISABLED
) ? "Kill" : "On");
3717 iwl3945_write32(priv
, CSR_UCODE_DRV_GP1_SET
,
3718 CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED
);
3720 if (flags
& HW_CARD_DISABLED
)
3721 set_bit(STATUS_RF_KILL_HW
, &priv
->status
);
3723 clear_bit(STATUS_RF_KILL_HW
, &priv
->status
);
3726 if (flags
& SW_CARD_DISABLED
)
3727 set_bit(STATUS_RF_KILL_SW
, &priv
->status
);
3729 clear_bit(STATUS_RF_KILL_SW
, &priv
->status
);
3731 iwl3945_scan_cancel(priv
);
3733 if ((test_bit(STATUS_RF_KILL_HW
, &status
) !=
3734 test_bit(STATUS_RF_KILL_HW
, &priv
->status
)) ||
3735 (test_bit(STATUS_RF_KILL_SW
, &status
) !=
3736 test_bit(STATUS_RF_KILL_SW
, &priv
->status
)))
3737 queue_work(priv
->workqueue
, &priv
->rf_kill
);
3739 wake_up_interruptible(&priv
->wait_command_queue
);
3743 * iwl3945_setup_rx_handlers - Initialize Rx handler callbacks
3745 * Setup the RX handlers for each of the reply types sent from the uCode
3748 * This function chains into the hardware specific files for them to setup
3749 * any hardware specific handlers as well.
3751 static void iwl3945_setup_rx_handlers(struct iwl3945_priv
*priv
)
3753 priv
->rx_handlers
[REPLY_ALIVE
] = iwl3945_rx_reply_alive
;
3754 priv
->rx_handlers
[REPLY_ADD_STA
] = iwl3945_rx_reply_add_sta
;
3755 priv
->rx_handlers
[REPLY_ERROR
] = iwl3945_rx_reply_error
;
3756 priv
->rx_handlers
[CHANNEL_SWITCH_NOTIFICATION
] = iwl3945_rx_csa
;
3757 priv
->rx_handlers
[SPECTRUM_MEASURE_NOTIFICATION
] =
3758 iwl3945_rx_spectrum_measure_notif
;
3759 priv
->rx_handlers
[PM_SLEEP_NOTIFICATION
] = iwl3945_rx_pm_sleep_notif
;
3760 priv
->rx_handlers
[PM_DEBUG_STATISTIC_NOTIFIC
] =
3761 iwl3945_rx_pm_debug_statistics_notif
;
3762 priv
->rx_handlers
[BEACON_NOTIFICATION
] = iwl3945_rx_beacon_notif
;
3765 * The same handler is used for both the REPLY to a discrete
3766 * statistics request from the host as well as for the periodic
3767 * statistics notifications (after received beacons) from the uCode.
3769 priv
->rx_handlers
[REPLY_STATISTICS_CMD
] = iwl3945_hw_rx_statistics
;
3770 priv
->rx_handlers
[STATISTICS_NOTIFICATION
] = iwl3945_hw_rx_statistics
;
3772 priv
->rx_handlers
[REPLY_SCAN_CMD
] = iwl3945_rx_reply_scan
;
3773 priv
->rx_handlers
[SCAN_START_NOTIFICATION
] = iwl3945_rx_scan_start_notif
;
3774 priv
->rx_handlers
[SCAN_RESULTS_NOTIFICATION
] =
3775 iwl3945_rx_scan_results_notif
;
3776 priv
->rx_handlers
[SCAN_COMPLETE_NOTIFICATION
] =
3777 iwl3945_rx_scan_complete_notif
;
3778 priv
->rx_handlers
[CARD_STATE_NOTIFICATION
] = iwl3945_rx_card_state_notif
;
3779 priv
->rx_handlers
[REPLY_TX
] = iwl3945_rx_reply_tx
;
3781 /* Set up hardware specific Rx handlers */
3782 iwl3945_hw_rx_handler_setup(priv
);
3786 * iwl3945_tx_cmd_complete - Pull unused buffers off the queue and reclaim them
3787 * @rxb: Rx buffer to reclaim
3789 * If an Rx buffer has an async callback associated with it the callback
3790 * will be executed. The attached skb (if present) will only be freed
3791 * if the callback returns 1
3793 static void iwl3945_tx_cmd_complete(struct iwl3945_priv
*priv
,
3794 struct iwl3945_rx_mem_buffer
*rxb
)
3796 struct iwl3945_rx_packet
*pkt
= (struct iwl3945_rx_packet
*)rxb
->skb
->data
;
3797 u16 sequence
= le16_to_cpu(pkt
->hdr
.sequence
);
3798 int txq_id
= SEQ_TO_QUEUE(sequence
);
3799 int index
= SEQ_TO_INDEX(sequence
);
3800 int huge
= sequence
& SEQ_HUGE_FRAME
;
3802 struct iwl3945_cmd
*cmd
;
3804 /* If a Tx command is being handled and it isn't in the actual
3805 * command queue then there a command routing bug has been introduced
3806 * in the queue management code. */
3807 if (txq_id
!= IWL_CMD_QUEUE_NUM
)
3808 IWL_ERROR("Error wrong command queue %d command id 0x%X\n",
3809 txq_id
, pkt
->hdr
.cmd
);
3810 BUG_ON(txq_id
!= IWL_CMD_QUEUE_NUM
);
3812 cmd_index
= get_cmd_index(&priv
->txq
[IWL_CMD_QUEUE_NUM
].q
, index
, huge
);
3813 cmd
= &priv
->txq
[IWL_CMD_QUEUE_NUM
].cmd
[cmd_index
];
3815 /* Input error checking is done when commands are added to queue. */
3816 if (cmd
->meta
.flags
& CMD_WANT_SKB
) {
3817 cmd
->meta
.source
->u
.skb
= rxb
->skb
;
3819 } else if (cmd
->meta
.u
.callback
&&
3820 !cmd
->meta
.u
.callback(priv
, cmd
, rxb
->skb
))
3823 iwl3945_tx_queue_reclaim(priv
, txq_id
, index
);
3825 if (!(cmd
->meta
.flags
& CMD_ASYNC
)) {
3826 clear_bit(STATUS_HCMD_ACTIVE
, &priv
->status
);
3827 wake_up_interruptible(&priv
->wait_command_queue
);
3831 /************************** RX-FUNCTIONS ****************************/
3833 * Rx theory of operation
3835 * The host allocates 32 DMA target addresses and passes the host address
3836 * to the firmware at register IWL_RFDS_TABLE_LOWER + N * RFD_SIZE where N is
3840 * The host/firmware share two index registers for managing the Rx buffers.
3842 * The READ index maps to the first position that the firmware may be writing
3843 * to -- the driver can read up to (but not including) this position and get
3845 * The READ index is managed by the firmware once the card is enabled.
3847 * The WRITE index maps to the last position the driver has read from -- the
3848 * position preceding WRITE is the last slot the firmware can place a packet.
3850 * The queue is empty (no good data) if WRITE = READ - 1, and is full if
3853 * During initialization, the host sets up the READ queue position to the first
3854 * INDEX position, and WRITE to the last (READ - 1 wrapped)
3856 * When the firmware places a packet in a buffer, it will advance the READ index
3857 * and fire the RX interrupt. The driver can then query the READ index and
3858 * process as many packets as possible, moving the WRITE index forward as it
3859 * resets the Rx queue buffers with new memory.
3861 * The management in the driver is as follows:
3862 * + A list of pre-allocated SKBs is stored in iwl->rxq->rx_free. When
3863 * iwl->rxq->free_count drops to or below RX_LOW_WATERMARK, work is scheduled
3864 * to replenish the iwl->rxq->rx_free.
3865 * + In iwl3945_rx_replenish (scheduled) if 'processed' != 'read' then the
3866 * iwl->rxq is replenished and the READ INDEX is updated (updating the
3867 * 'processed' and 'read' driver indexes as well)
3868 * + A received packet is processed and handed to the kernel network stack,
3869 * detached from the iwl->rxq. The driver 'processed' index is updated.
3870 * + The Host/Firmware iwl->rxq is replenished at tasklet time from the rx_free
3871 * list. If there are no allocated buffers in iwl->rxq->rx_free, the READ
3872 * INDEX is not incremented and iwl->status(RX_STALLED) is set. If there
3873 * were enough free buffers and RX_STALLED is set it is cleared.
3878 * iwl3945_rx_queue_alloc() Allocates rx_free
3879 * iwl3945_rx_replenish() Replenishes rx_free list from rx_used, and calls
3880 * iwl3945_rx_queue_restock
3881 * iwl3945_rx_queue_restock() Moves available buffers from rx_free into Rx
3882 * queue, updates firmware pointers, and updates
3883 * the WRITE index. If insufficient rx_free buffers
3884 * are available, schedules iwl3945_rx_replenish
3886 * -- enable interrupts --
3887 * ISR - iwl3945_rx() Detach iwl3945_rx_mem_buffers from pool up to the
3888 * READ INDEX, detaching the SKB from the pool.
3889 * Moves the packet buffer from queue to rx_used.
3890 * Calls iwl3945_rx_queue_restock to refill any empty
3897 * iwl3945_rx_queue_space - Return number of free slots available in queue.
3899 static int iwl3945_rx_queue_space(const struct iwl3945_rx_queue
*q
)
3901 int s
= q
->read
- q
->write
;
3904 /* keep some buffer to not confuse full and empty queue */
3912 * iwl3945_rx_queue_update_write_ptr - Update the write pointer for the RX queue
3914 int iwl3945_rx_queue_update_write_ptr(struct iwl3945_priv
*priv
, struct iwl3945_rx_queue
*q
)
3918 unsigned long flags
;
3920 spin_lock_irqsave(&q
->lock
, flags
);
3922 if (q
->need_update
== 0)
3925 /* If power-saving is in use, make sure device is awake */
3926 if (test_bit(STATUS_POWER_PMI
, &priv
->status
)) {
3927 reg
= iwl3945_read32(priv
, CSR_UCODE_DRV_GP1
);
3929 if (reg
& CSR_UCODE_DRV_GP1_BIT_MAC_SLEEP
) {
3930 iwl3945_set_bit(priv
, CSR_GP_CNTRL
,
3931 CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ
);
3935 rc
= iwl3945_grab_nic_access(priv
);
3939 /* Device expects a multiple of 8 */
3940 iwl3945_write_direct32(priv
, FH_RSCSR_CHNL0_WPTR
,
3942 iwl3945_release_nic_access(priv
);
3944 /* Else device is assumed to be awake */
3946 /* Device expects a multiple of 8 */
3947 iwl3945_write32(priv
, FH_RSCSR_CHNL0_WPTR
, q
->write
& ~0x7);
3953 spin_unlock_irqrestore(&q
->lock
, flags
);
3958 * iwl3945_dma_addr2rbd_ptr - convert a DMA address to a uCode read buffer ptr
3960 static inline __le32
iwl3945_dma_addr2rbd_ptr(struct iwl3945_priv
*priv
,
3961 dma_addr_t dma_addr
)
3963 return cpu_to_le32((u32
)dma_addr
);
3967 * iwl3945_rx_queue_restock - refill RX queue from pre-allocated pool
3969 * If there are slots in the RX queue that need to be restocked,
3970 * and we have free pre-allocated buffers, fill the ranks as much
3971 * as we can, pulling from rx_free.
3973 * This moves the 'write' index forward to catch up with 'processed', and
3974 * also updates the memory address in the firmware to reference the new
3977 static int iwl3945_rx_queue_restock(struct iwl3945_priv
*priv
)
3979 struct iwl3945_rx_queue
*rxq
= &priv
->rxq
;
3980 struct list_head
*element
;
3981 struct iwl3945_rx_mem_buffer
*rxb
;
3982 unsigned long flags
;
3985 spin_lock_irqsave(&rxq
->lock
, flags
);
3986 write
= rxq
->write
& ~0x7;
3987 while ((iwl3945_rx_queue_space(rxq
) > 0) && (rxq
->free_count
)) {
3988 /* Get next free Rx buffer, remove from free list */
3989 element
= rxq
->rx_free
.next
;
3990 rxb
= list_entry(element
, struct iwl3945_rx_mem_buffer
, list
);
3993 /* Point to Rx buffer via next RBD in circular buffer */
3994 rxq
->bd
[rxq
->write
] = iwl3945_dma_addr2rbd_ptr(priv
, rxb
->dma_addr
);
3995 rxq
->queue
[rxq
->write
] = rxb
;
3996 rxq
->write
= (rxq
->write
+ 1) & RX_QUEUE_MASK
;
3999 spin_unlock_irqrestore(&rxq
->lock
, flags
);
4000 /* If the pre-allocated buffer pool is dropping low, schedule to
4002 if (rxq
->free_count
<= RX_LOW_WATERMARK
)
4003 queue_work(priv
->workqueue
, &priv
->rx_replenish
);
4006 /* If we've added more space for the firmware to place data, tell it.
4007 * Increment device's write pointer in multiples of 8. */
4008 if ((write
!= (rxq
->write
& ~0x7))
4009 || (abs(rxq
->write
- rxq
->read
) > 7)) {
4010 spin_lock_irqsave(&rxq
->lock
, flags
);
4011 rxq
->need_update
= 1;
4012 spin_unlock_irqrestore(&rxq
->lock
, flags
);
4013 rc
= iwl3945_rx_queue_update_write_ptr(priv
, rxq
);
4022 * iwl3945_rx_replenish - Move all used packet from rx_used to rx_free
4024 * When moving to rx_free an SKB is allocated for the slot.
4026 * Also restock the Rx queue via iwl3945_rx_queue_restock.
4027 * This is called as a scheduled work item (except for during initialization)
4029 static void iwl3945_rx_allocate(struct iwl3945_priv
*priv
)
4031 struct iwl3945_rx_queue
*rxq
= &priv
->rxq
;
4032 struct list_head
*element
;
4033 struct iwl3945_rx_mem_buffer
*rxb
;
4034 unsigned long flags
;
4035 spin_lock_irqsave(&rxq
->lock
, flags
);
4036 while (!list_empty(&rxq
->rx_used
)) {
4037 element
= rxq
->rx_used
.next
;
4038 rxb
= list_entry(element
, struct iwl3945_rx_mem_buffer
, list
);
4040 /* Alloc a new receive buffer */
4042 alloc_skb(IWL_RX_BUF_SIZE
, __GFP_NOWARN
| GFP_ATOMIC
);
4044 if (net_ratelimit())
4045 printk(KERN_CRIT DRV_NAME
4046 ": Can not allocate SKB buffers\n");
4047 /* We don't reschedule replenish work here -- we will
4048 * call the restock method and if it still needs
4049 * more buffers it will schedule replenish */
4053 /* If radiotap head is required, reserve some headroom here.
4054 * The physical head count is a variable rx_stats->phy_count.
4055 * We reserve 4 bytes here. Plus these extra bytes, the
4056 * headroom of the physical head should be enough for the
4057 * radiotap head that iwl3945 supported. See iwl3945_rt.
4059 skb_reserve(rxb
->skb
, 4);
4061 priv
->alloc_rxb_skb
++;
4064 /* Get physical address of RB/SKB */
4066 pci_map_single(priv
->pci_dev
, rxb
->skb
->data
,
4067 IWL_RX_BUF_SIZE
, PCI_DMA_FROMDEVICE
);
4068 list_add_tail(&rxb
->list
, &rxq
->rx_free
);
4071 spin_unlock_irqrestore(&rxq
->lock
, flags
);
4075 * this should be called while priv->lock is locked
4077 static void __iwl3945_rx_replenish(void *data
)
4079 struct iwl3945_priv
*priv
= data
;
4081 iwl3945_rx_allocate(priv
);
4082 iwl3945_rx_queue_restock(priv
);
4086 void iwl3945_rx_replenish(void *data
)
4088 struct iwl3945_priv
*priv
= data
;
4089 unsigned long flags
;
4091 iwl3945_rx_allocate(priv
);
4093 spin_lock_irqsave(&priv
->lock
, flags
);
4094 iwl3945_rx_queue_restock(priv
);
4095 spin_unlock_irqrestore(&priv
->lock
, flags
);
4098 /* Assumes that the skb field of the buffers in 'pool' is kept accurate.
4099 * If an SKB has been detached, the POOL needs to have its SKB set to NULL
4100 * This free routine walks the list of POOL entries and if SKB is set to
4101 * non NULL it is unmapped and freed
4103 static void iwl3945_rx_queue_free(struct iwl3945_priv
*priv
, struct iwl3945_rx_queue
*rxq
)
4106 for (i
= 0; i
< RX_QUEUE_SIZE
+ RX_FREE_BUFFERS
; i
++) {
4107 if (rxq
->pool
[i
].skb
!= NULL
) {
4108 pci_unmap_single(priv
->pci_dev
,
4109 rxq
->pool
[i
].dma_addr
,
4110 IWL_RX_BUF_SIZE
, PCI_DMA_FROMDEVICE
);
4111 dev_kfree_skb(rxq
->pool
[i
].skb
);
4115 pci_free_consistent(priv
->pci_dev
, 4 * RX_QUEUE_SIZE
, rxq
->bd
,
4120 int iwl3945_rx_queue_alloc(struct iwl3945_priv
*priv
)
4122 struct iwl3945_rx_queue
*rxq
= &priv
->rxq
;
4123 struct pci_dev
*dev
= priv
->pci_dev
;
4126 spin_lock_init(&rxq
->lock
);
4127 INIT_LIST_HEAD(&rxq
->rx_free
);
4128 INIT_LIST_HEAD(&rxq
->rx_used
);
4130 /* Alloc the circular buffer of Read Buffer Descriptors (RBDs) */
4131 rxq
->bd
= pci_alloc_consistent(dev
, 4 * RX_QUEUE_SIZE
, &rxq
->dma_addr
);
4135 /* Fill the rx_used queue with _all_ of the Rx buffers */
4136 for (i
= 0; i
< RX_FREE_BUFFERS
+ RX_QUEUE_SIZE
; i
++)
4137 list_add_tail(&rxq
->pool
[i
].list
, &rxq
->rx_used
);
4139 /* Set us so that we have processed and used all buffers, but have
4140 * not restocked the Rx queue with fresh buffers */
4141 rxq
->read
= rxq
->write
= 0;
4142 rxq
->free_count
= 0;
4143 rxq
->need_update
= 0;
4147 void iwl3945_rx_queue_reset(struct iwl3945_priv
*priv
, struct iwl3945_rx_queue
*rxq
)
4149 unsigned long flags
;
4151 spin_lock_irqsave(&rxq
->lock
, flags
);
4152 INIT_LIST_HEAD(&rxq
->rx_free
);
4153 INIT_LIST_HEAD(&rxq
->rx_used
);
4154 /* Fill the rx_used queue with _all_ of the Rx buffers */
4155 for (i
= 0; i
< RX_FREE_BUFFERS
+ RX_QUEUE_SIZE
; i
++) {
4156 /* In the reset function, these buffers may have been allocated
4157 * to an SKB, so we need to unmap and free potential storage */
4158 if (rxq
->pool
[i
].skb
!= NULL
) {
4159 pci_unmap_single(priv
->pci_dev
,
4160 rxq
->pool
[i
].dma_addr
,
4161 IWL_RX_BUF_SIZE
, PCI_DMA_FROMDEVICE
);
4162 priv
->alloc_rxb_skb
--;
4163 dev_kfree_skb(rxq
->pool
[i
].skb
);
4164 rxq
->pool
[i
].skb
= NULL
;
4166 list_add_tail(&rxq
->pool
[i
].list
, &rxq
->rx_used
);
4169 /* Set us so that we have processed and used all buffers, but have
4170 * not restocked the Rx queue with fresh buffers */
4171 rxq
->read
= rxq
->write
= 0;
4172 rxq
->free_count
= 0;
4173 spin_unlock_irqrestore(&rxq
->lock
, flags
);
4176 /* Convert linear signal-to-noise ratio into dB */
4177 static u8 ratio2dB
[100] = {
4178 /* 0 1 2 3 4 5 6 7 8 9 */
4179 0, 0, 6, 10, 12, 14, 16, 17, 18, 19, /* 00 - 09 */
4180 20, 21, 22, 22, 23, 23, 24, 25, 26, 26, /* 10 - 19 */
4181 26, 26, 26, 27, 27, 28, 28, 28, 29, 29, /* 20 - 29 */
4182 29, 30, 30, 30, 31, 31, 31, 31, 32, 32, /* 30 - 39 */
4183 32, 32, 32, 33, 33, 33, 33, 33, 34, 34, /* 40 - 49 */
4184 34, 34, 34, 34, 35, 35, 35, 35, 35, 35, /* 50 - 59 */
4185 36, 36, 36, 36, 36, 36, 36, 37, 37, 37, /* 60 - 69 */
4186 37, 37, 37, 37, 37, 38, 38, 38, 38, 38, /* 70 - 79 */
4187 38, 38, 38, 38, 38, 39, 39, 39, 39, 39, /* 80 - 89 */
4188 39, 39, 39, 39, 39, 40, 40, 40, 40, 40 /* 90 - 99 */
4191 /* Calculates a relative dB value from a ratio of linear
4192 * (i.e. not dB) signal levels.
4193 * Conversion assumes that levels are voltages (20*log), not powers (10*log). */
4194 int iwl3945_calc_db_from_ratio(int sig_ratio
)
4196 /* Anything above 1000:1 just report as 60 dB */
4197 if (sig_ratio
> 1000)
4200 /* Above 100:1, divide by 10 and use table,
4201 * add 20 dB to make up for divide by 10 */
4202 if (sig_ratio
> 100)
4203 return (20 + (int)ratio2dB
[sig_ratio
/10]);
4205 /* We shouldn't see this */
4209 /* Use table for ratios 1:1 - 99:1 */
4210 return (int)ratio2dB
[sig_ratio
];
4213 #define PERFECT_RSSI (-20) /* dBm */
4214 #define WORST_RSSI (-95) /* dBm */
4215 #define RSSI_RANGE (PERFECT_RSSI - WORST_RSSI)
4217 /* Calculate an indication of rx signal quality (a percentage, not dBm!).
4218 * See http://www.ces.clemson.edu/linux/signal_quality.shtml for info
4219 * about formulas used below. */
4220 int iwl3945_calc_sig_qual(int rssi_dbm
, int noise_dbm
)
4223 int degradation
= PERFECT_RSSI
- rssi_dbm
;
4225 /* If we get a noise measurement, use signal-to-noise ratio (SNR)
4226 * as indicator; formula is (signal dbm - noise dbm).
4227 * SNR at or above 40 is a great signal (100%).
4228 * Below that, scale to fit SNR of 0 - 40 dB within 0 - 100% indicator.
4229 * Weakest usable signal is usually 10 - 15 dB SNR. */
4231 if (rssi_dbm
- noise_dbm
>= 40)
4233 else if (rssi_dbm
< noise_dbm
)
4235 sig_qual
= ((rssi_dbm
- noise_dbm
) * 5) / 2;
4237 /* Else use just the signal level.
4238 * This formula is a least squares fit of data points collected and
4239 * compared with a reference system that had a percentage (%) display
4240 * for signal quality. */
4242 sig_qual
= (100 * (RSSI_RANGE
* RSSI_RANGE
) - degradation
*
4243 (15 * RSSI_RANGE
+ 62 * degradation
)) /
4244 (RSSI_RANGE
* RSSI_RANGE
);
4248 else if (sig_qual
< 1)
4255 * iwl3945_rx_handle - Main entry function for receiving responses from uCode
4257 * Uses the priv->rx_handlers callback function array to invoke
4258 * the appropriate handlers, including command responses,
4259 * frame-received notifications, and other notifications.
4261 static void iwl3945_rx_handle(struct iwl3945_priv
*priv
)
4263 struct iwl3945_rx_mem_buffer
*rxb
;
4264 struct iwl3945_rx_packet
*pkt
;
4265 struct iwl3945_rx_queue
*rxq
= &priv
->rxq
;
4268 unsigned long flags
;
4272 /* uCode's read index (stored in shared DRAM) indicates the last Rx
4273 * buffer that the driver may process (last buffer filled by ucode). */
4274 r
= iwl3945_hw_get_rx_read(priv
);
4277 if (iwl3945_rx_queue_space(rxq
) > (RX_QUEUE_SIZE
/ 2))
4279 /* Rx interrupt, but nothing sent from uCode */
4281 IWL_DEBUG(IWL_DL_RX
| IWL_DL_ISR
, "r = %d, i = %d\n", r
, i
);
4284 rxb
= rxq
->queue
[i
];
4286 /* If an RXB doesn't have a Rx queue slot associated with it,
4287 * then a bug has been introduced in the queue refilling
4288 * routines -- catch it here */
4289 BUG_ON(rxb
== NULL
);
4291 rxq
->queue
[i
] = NULL
;
4293 pci_dma_sync_single_for_cpu(priv
->pci_dev
, rxb
->dma_addr
,
4295 PCI_DMA_FROMDEVICE
);
4296 pkt
= (struct iwl3945_rx_packet
*)rxb
->skb
->data
;
4298 /* Reclaim a command buffer only if this packet is a response
4299 * to a (driver-originated) command.
4300 * If the packet (e.g. Rx frame) originated from uCode,
4301 * there is no command buffer to reclaim.
4302 * Ucode should set SEQ_RX_FRAME bit if ucode-originated,
4303 * but apparently a few don't get set; catch them here. */
4304 reclaim
= !(pkt
->hdr
.sequence
& SEQ_RX_FRAME
) &&
4305 (pkt
->hdr
.cmd
!= STATISTICS_NOTIFICATION
) &&
4306 (pkt
->hdr
.cmd
!= REPLY_TX
);
4308 /* Based on type of command response or notification,
4309 * handle those that need handling via function in
4310 * rx_handlers table. See iwl3945_setup_rx_handlers() */
4311 if (priv
->rx_handlers
[pkt
->hdr
.cmd
]) {
4312 IWL_DEBUG(IWL_DL_HOST_COMMAND
| IWL_DL_RX
| IWL_DL_ISR
,
4313 "r = %d, i = %d, %s, 0x%02x\n", r
, i
,
4314 get_cmd_string(pkt
->hdr
.cmd
), pkt
->hdr
.cmd
);
4315 priv
->rx_handlers
[pkt
->hdr
.cmd
] (priv
, rxb
);
4317 /* No handling needed */
4318 IWL_DEBUG(IWL_DL_HOST_COMMAND
| IWL_DL_RX
| IWL_DL_ISR
,
4319 "r %d i %d No handler needed for %s, 0x%02x\n",
4320 r
, i
, get_cmd_string(pkt
->hdr
.cmd
),
4325 /* Invoke any callbacks, transfer the skb to caller, and
4326 * fire off the (possibly) blocking iwl3945_send_cmd()
4327 * as we reclaim the driver command queue */
4328 if (rxb
&& rxb
->skb
)
4329 iwl3945_tx_cmd_complete(priv
, rxb
);
4331 IWL_WARNING("Claim null rxb?\n");
4334 /* For now we just don't re-use anything. We can tweak this
4335 * later to try and re-use notification packets and SKBs that
4336 * fail to Rx correctly */
4337 if (rxb
->skb
!= NULL
) {
4338 priv
->alloc_rxb_skb
--;
4339 dev_kfree_skb_any(rxb
->skb
);
4343 pci_unmap_single(priv
->pci_dev
, rxb
->dma_addr
,
4344 IWL_RX_BUF_SIZE
, PCI_DMA_FROMDEVICE
);
4345 spin_lock_irqsave(&rxq
->lock
, flags
);
4346 list_add_tail(&rxb
->list
, &priv
->rxq
.rx_used
);
4347 spin_unlock_irqrestore(&rxq
->lock
, flags
);
4348 i
= (i
+ 1) & RX_QUEUE_MASK
;
4349 /* If there are a lot of unused frames,
4350 * restock the Rx queue so ucode won't assert. */
4355 __iwl3945_rx_replenish(priv
);
4361 /* Backtrack one entry */
4363 iwl3945_rx_queue_restock(priv
);
4367 * iwl3945_tx_queue_update_write_ptr - Send new write index to hardware
4369 static int iwl3945_tx_queue_update_write_ptr(struct iwl3945_priv
*priv
,
4370 struct iwl3945_tx_queue
*txq
)
4374 int txq_id
= txq
->q
.id
;
4376 if (txq
->need_update
== 0)
4379 /* if we're trying to save power */
4380 if (test_bit(STATUS_POWER_PMI
, &priv
->status
)) {
4381 /* wake up nic if it's powered down ...
4382 * uCode will wake up, and interrupt us again, so next
4383 * time we'll skip this part. */
4384 reg
= iwl3945_read32(priv
, CSR_UCODE_DRV_GP1
);
4386 if (reg
& CSR_UCODE_DRV_GP1_BIT_MAC_SLEEP
) {
4387 IWL_DEBUG_INFO("Requesting wakeup, GP1 = 0x%x\n", reg
);
4388 iwl3945_set_bit(priv
, CSR_GP_CNTRL
,
4389 CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ
);
4393 /* restore this queue's parameters in nic hardware. */
4394 rc
= iwl3945_grab_nic_access(priv
);
4397 iwl3945_write_direct32(priv
, HBUS_TARG_WRPTR
,
4398 txq
->q
.write_ptr
| (txq_id
<< 8));
4399 iwl3945_release_nic_access(priv
);
4401 /* else not in power-save mode, uCode will never sleep when we're
4402 * trying to tx (during RFKILL, we're not trying to tx). */
4404 iwl3945_write32(priv
, HBUS_TARG_WRPTR
,
4405 txq
->q
.write_ptr
| (txq_id
<< 8));
4407 txq
->need_update
= 0;
4412 #ifdef CONFIG_IWL3945_DEBUG
4413 static void iwl3945_print_rx_config_cmd(struct iwl3945_rxon_cmd
*rxon
)
4415 DECLARE_MAC_BUF(mac
);
4417 IWL_DEBUG_RADIO("RX CONFIG:\n");
4418 iwl3945_print_hex_dump(IWL_DL_RADIO
, (u8
*) rxon
, sizeof(*rxon
));
4419 IWL_DEBUG_RADIO("u16 channel: 0x%x\n", le16_to_cpu(rxon
->channel
));
4420 IWL_DEBUG_RADIO("u32 flags: 0x%08X\n", le32_to_cpu(rxon
->flags
));
4421 IWL_DEBUG_RADIO("u32 filter_flags: 0x%08x\n",
4422 le32_to_cpu(rxon
->filter_flags
));
4423 IWL_DEBUG_RADIO("u8 dev_type: 0x%x\n", rxon
->dev_type
);
4424 IWL_DEBUG_RADIO("u8 ofdm_basic_rates: 0x%02x\n",
4425 rxon
->ofdm_basic_rates
);
4426 IWL_DEBUG_RADIO("u8 cck_basic_rates: 0x%02x\n", rxon
->cck_basic_rates
);
4427 IWL_DEBUG_RADIO("u8[6] node_addr: %s\n",
4428 print_mac(mac
, rxon
->node_addr
));
4429 IWL_DEBUG_RADIO("u8[6] bssid_addr: %s\n",
4430 print_mac(mac
, rxon
->bssid_addr
));
4431 IWL_DEBUG_RADIO("u16 assoc_id: 0x%x\n", le16_to_cpu(rxon
->assoc_id
));
4435 static void iwl3945_enable_interrupts(struct iwl3945_priv
*priv
)
4437 IWL_DEBUG_ISR("Enabling interrupts\n");
4438 set_bit(STATUS_INT_ENABLED
, &priv
->status
);
4439 iwl3945_write32(priv
, CSR_INT_MASK
, CSR_INI_SET_MASK
);
4442 static inline void iwl3945_disable_interrupts(struct iwl3945_priv
*priv
)
4444 clear_bit(STATUS_INT_ENABLED
, &priv
->status
);
4446 /* disable interrupts from uCode/NIC to host */
4447 iwl3945_write32(priv
, CSR_INT_MASK
, 0x00000000);
4449 /* acknowledge/clear/reset any interrupts still pending
4450 * from uCode or flow handler (Rx/Tx DMA) */
4451 iwl3945_write32(priv
, CSR_INT
, 0xffffffff);
4452 iwl3945_write32(priv
, CSR_FH_INT_STATUS
, 0xffffffff);
4453 IWL_DEBUG_ISR("Disabled interrupts\n");
4456 static const char *desc_lookup(int i
)
4464 return "BAD_CHECKSUM";
4466 return "NMI_INTERRUPT";
4470 return "FATAL_ERROR";
4476 #define ERROR_START_OFFSET (1 * sizeof(u32))
4477 #define ERROR_ELEM_SIZE (7 * sizeof(u32))
4479 static void iwl3945_dump_nic_error_log(struct iwl3945_priv
*priv
)
4482 u32 desc
, time
, count
, base
, data1
;
4483 u32 blink1
, blink2
, ilink1
, ilink2
;
4486 base
= le32_to_cpu(priv
->card_alive
.error_event_table_ptr
);
4488 if (!iwl3945_hw_valid_rtc_data_addr(base
)) {
4489 IWL_ERROR("Not valid error log pointer 0x%08X\n", base
);
4493 rc
= iwl3945_grab_nic_access(priv
);
4495 IWL_WARNING("Can not read from adapter at this time.\n");
4499 count
= iwl3945_read_targ_mem(priv
, base
);
4501 if (ERROR_START_OFFSET
<= count
* ERROR_ELEM_SIZE
) {
4502 IWL_ERROR("Start IWL Error Log Dump:\n");
4503 IWL_ERROR("Status: 0x%08lX, Config: %08X count: %d\n",
4504 priv
->status
, priv
->config
, count
);
4507 IWL_ERROR("Desc Time asrtPC blink2 "
4508 "ilink1 nmiPC Line\n");
4509 for (i
= ERROR_START_OFFSET
;
4510 i
< (count
* ERROR_ELEM_SIZE
) + ERROR_START_OFFSET
;
4511 i
+= ERROR_ELEM_SIZE
) {
4512 desc
= iwl3945_read_targ_mem(priv
, base
+ i
);
4514 iwl3945_read_targ_mem(priv
, base
+ i
+ 1 * sizeof(u32
));
4516 iwl3945_read_targ_mem(priv
, base
+ i
+ 2 * sizeof(u32
));
4518 iwl3945_read_targ_mem(priv
, base
+ i
+ 3 * sizeof(u32
));
4520 iwl3945_read_targ_mem(priv
, base
+ i
+ 4 * sizeof(u32
));
4522 iwl3945_read_targ_mem(priv
, base
+ i
+ 5 * sizeof(u32
));
4524 iwl3945_read_targ_mem(priv
, base
+ i
+ 6 * sizeof(u32
));
4527 ("%-13s (#%d) %010u 0x%05X 0x%05X 0x%05X 0x%05X %u\n\n",
4528 desc_lookup(desc
), desc
, time
, blink1
, blink2
,
4529 ilink1
, ilink2
, data1
);
4532 iwl3945_release_nic_access(priv
);
4536 #define EVENT_START_OFFSET (6 * sizeof(u32))
4539 * iwl3945_print_event_log - Dump error event log to syslog
4541 * NOTE: Must be called with iwl3945_grab_nic_access() already obtained!
4543 static void iwl3945_print_event_log(struct iwl3945_priv
*priv
, u32 start_idx
,
4544 u32 num_events
, u32 mode
)
4547 u32 base
; /* SRAM byte address of event log header */
4548 u32 event_size
; /* 2 u32s, or 3 u32s if timestamp recorded */
4549 u32 ptr
; /* SRAM byte address of log data */
4550 u32 ev
, time
, data
; /* event log data */
4552 if (num_events
== 0)
4555 base
= le32_to_cpu(priv
->card_alive
.log_event_table_ptr
);
4558 event_size
= 2 * sizeof(u32
);
4560 event_size
= 3 * sizeof(u32
);
4562 ptr
= base
+ EVENT_START_OFFSET
+ (start_idx
* event_size
);
4564 /* "time" is actually "data" for mode 0 (no timestamp).
4565 * place event id # at far right for easier visual parsing. */
4566 for (i
= 0; i
< num_events
; i
++) {
4567 ev
= iwl3945_read_targ_mem(priv
, ptr
);
4569 time
= iwl3945_read_targ_mem(priv
, ptr
);
4572 IWL_ERROR("0x%08x\t%04u\n", time
, ev
); /* data, ev */
4574 data
= iwl3945_read_targ_mem(priv
, ptr
);
4576 IWL_ERROR("%010u\t0x%08x\t%04u\n", time
, data
, ev
);
4581 static void iwl3945_dump_nic_event_log(struct iwl3945_priv
*priv
)
4584 u32 base
; /* SRAM byte address of event log header */
4585 u32 capacity
; /* event log capacity in # entries */
4586 u32 mode
; /* 0 - no timestamp, 1 - timestamp recorded */
4587 u32 num_wraps
; /* # times uCode wrapped to top of log */
4588 u32 next_entry
; /* index of next entry to be written by uCode */
4589 u32 size
; /* # entries that we'll print */
4591 base
= le32_to_cpu(priv
->card_alive
.log_event_table_ptr
);
4592 if (!iwl3945_hw_valid_rtc_data_addr(base
)) {
4593 IWL_ERROR("Invalid event log pointer 0x%08X\n", base
);
4597 rc
= iwl3945_grab_nic_access(priv
);
4599 IWL_WARNING("Can not read from adapter at this time.\n");
4603 /* event log header */
4604 capacity
= iwl3945_read_targ_mem(priv
, base
);
4605 mode
= iwl3945_read_targ_mem(priv
, base
+ (1 * sizeof(u32
)));
4606 num_wraps
= iwl3945_read_targ_mem(priv
, base
+ (2 * sizeof(u32
)));
4607 next_entry
= iwl3945_read_targ_mem(priv
, base
+ (3 * sizeof(u32
)));
4609 size
= num_wraps
? capacity
: next_entry
;
4611 /* bail out if nothing in log */
4613 IWL_ERROR("Start IWL Event Log Dump: nothing in log\n");
4614 iwl3945_release_nic_access(priv
);
4618 IWL_ERROR("Start IWL Event Log Dump: display count %d, wraps %d\n",
4621 /* if uCode has wrapped back to top of log, start at the oldest entry,
4622 * i.e the next one that uCode would fill. */
4624 iwl3945_print_event_log(priv
, next_entry
,
4625 capacity
- next_entry
, mode
);
4627 /* (then/else) start at top of log */
4628 iwl3945_print_event_log(priv
, 0, next_entry
, mode
);
4630 iwl3945_release_nic_access(priv
);
4634 * iwl3945_irq_handle_error - called for HW or SW error interrupt from card
4636 static void iwl3945_irq_handle_error(struct iwl3945_priv
*priv
)
4638 /* Set the FW error flag -- cleared on iwl3945_down */
4639 set_bit(STATUS_FW_ERROR
, &priv
->status
);
4641 /* Cancel currently queued command. */
4642 clear_bit(STATUS_HCMD_ACTIVE
, &priv
->status
);
4644 #ifdef CONFIG_IWL3945_DEBUG
4645 if (iwl3945_debug_level
& IWL_DL_FW_ERRORS
) {
4646 iwl3945_dump_nic_error_log(priv
);
4647 iwl3945_dump_nic_event_log(priv
);
4648 iwl3945_print_rx_config_cmd(&priv
->staging_rxon
);
4652 wake_up_interruptible(&priv
->wait_command_queue
);
4654 /* Keep the restart process from trying to send host
4655 * commands by clearing the INIT status bit */
4656 clear_bit(STATUS_READY
, &priv
->status
);
4658 if (!test_bit(STATUS_EXIT_PENDING
, &priv
->status
)) {
4659 IWL_DEBUG(IWL_DL_INFO
| IWL_DL_FW_ERRORS
,
4660 "Restarting adapter due to uCode error.\n");
4662 if (iwl3945_is_associated(priv
)) {
4663 memcpy(&priv
->recovery_rxon
, &priv
->active_rxon
,
4664 sizeof(priv
->recovery_rxon
));
4665 priv
->error_recovering
= 1;
4667 queue_work(priv
->workqueue
, &priv
->restart
);
4671 static void iwl3945_error_recovery(struct iwl3945_priv
*priv
)
4673 unsigned long flags
;
4675 memcpy(&priv
->staging_rxon
, &priv
->recovery_rxon
,
4676 sizeof(priv
->staging_rxon
));
4677 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
4678 iwl3945_commit_rxon(priv
);
4680 iwl3945_add_station(priv
, priv
->bssid
, 1, 0);
4682 spin_lock_irqsave(&priv
->lock
, flags
);
4683 priv
->assoc_id
= le16_to_cpu(priv
->staging_rxon
.assoc_id
);
4684 priv
->error_recovering
= 0;
4685 spin_unlock_irqrestore(&priv
->lock
, flags
);
4688 static void iwl3945_irq_tasklet(struct iwl3945_priv
*priv
)
4690 u32 inta
, handled
= 0;
4692 unsigned long flags
;
4693 #ifdef CONFIG_IWL3945_DEBUG
4697 spin_lock_irqsave(&priv
->lock
, flags
);
4699 /* Ack/clear/reset pending uCode interrupts.
4700 * Note: Some bits in CSR_INT are "OR" of bits in CSR_FH_INT_STATUS,
4701 * and will clear only when CSR_FH_INT_STATUS gets cleared. */
4702 inta
= iwl3945_read32(priv
, CSR_INT
);
4703 iwl3945_write32(priv
, CSR_INT
, inta
);
4705 /* Ack/clear/reset pending flow-handler (DMA) interrupts.
4706 * Any new interrupts that happen after this, either while we're
4707 * in this tasklet, or later, will show up in next ISR/tasklet. */
4708 inta_fh
= iwl3945_read32(priv
, CSR_FH_INT_STATUS
);
4709 iwl3945_write32(priv
, CSR_FH_INT_STATUS
, inta_fh
);
4711 #ifdef CONFIG_IWL3945_DEBUG
4712 if (iwl3945_debug_level
& IWL_DL_ISR
) {
4713 /* just for debug */
4714 inta_mask
= iwl3945_read32(priv
, CSR_INT_MASK
);
4715 IWL_DEBUG_ISR("inta 0x%08x, enabled 0x%08x, fh 0x%08x\n",
4716 inta
, inta_mask
, inta_fh
);
4720 /* Since CSR_INT and CSR_FH_INT_STATUS reads and clears are not
4721 * atomic, make sure that inta covers all the interrupts that
4722 * we've discovered, even if FH interrupt came in just after
4723 * reading CSR_INT. */
4724 if (inta_fh
& CSR_FH_INT_RX_MASK
)
4725 inta
|= CSR_INT_BIT_FH_RX
;
4726 if (inta_fh
& CSR_FH_INT_TX_MASK
)
4727 inta
|= CSR_INT_BIT_FH_TX
;
4729 /* Now service all interrupt bits discovered above. */
4730 if (inta
& CSR_INT_BIT_HW_ERR
) {
4731 IWL_ERROR("Microcode HW error detected. Restarting.\n");
4733 /* Tell the device to stop sending interrupts */
4734 iwl3945_disable_interrupts(priv
);
4736 iwl3945_irq_handle_error(priv
);
4738 handled
|= CSR_INT_BIT_HW_ERR
;
4740 spin_unlock_irqrestore(&priv
->lock
, flags
);
4745 #ifdef CONFIG_IWL3945_DEBUG
4746 if (iwl3945_debug_level
& (IWL_DL_ISR
)) {
4747 /* NIC fires this, but we don't use it, redundant with WAKEUP */
4748 if (inta
& CSR_INT_BIT_MAC_CLK_ACTV
)
4749 IWL_DEBUG_ISR("Microcode started or stopped.\n");
4751 /* Alive notification via Rx interrupt will do the real work */
4752 if (inta
& CSR_INT_BIT_ALIVE
)
4753 IWL_DEBUG_ISR("Alive interrupt\n");
4756 /* Safely ignore these bits for debug checks below */
4757 inta
&= ~(CSR_INT_BIT_MAC_CLK_ACTV
| CSR_INT_BIT_ALIVE
);
4759 /* HW RF KILL switch toggled (4965 only) */
4760 if (inta
& CSR_INT_BIT_RF_KILL
) {
4762 if (!(iwl3945_read32(priv
, CSR_GP_CNTRL
) &
4763 CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW
))
4766 IWL_DEBUG(IWL_DL_INFO
| IWL_DL_RF_KILL
| IWL_DL_ISR
,
4767 "RF_KILL bit toggled to %s.\n",
4768 hw_rf_kill
? "disable radio":"enable radio");
4770 /* Queue restart only if RF_KILL switch was set to "kill"
4771 * when we loaded driver, and is now set to "enable".
4772 * After we're Alive, RF_KILL gets handled by
4773 * iwl_rx_card_state_notif() */
4774 if (!hw_rf_kill
&& !test_bit(STATUS_ALIVE
, &priv
->status
)) {
4775 clear_bit(STATUS_RF_KILL_HW
, &priv
->status
);
4776 queue_work(priv
->workqueue
, &priv
->restart
);
4779 handled
|= CSR_INT_BIT_RF_KILL
;
4782 /* Chip got too hot and stopped itself (4965 only) */
4783 if (inta
& CSR_INT_BIT_CT_KILL
) {
4784 IWL_ERROR("Microcode CT kill error detected.\n");
4785 handled
|= CSR_INT_BIT_CT_KILL
;
4788 /* Error detected by uCode */
4789 if (inta
& CSR_INT_BIT_SW_ERR
) {
4790 IWL_ERROR("Microcode SW error detected. Restarting 0x%X.\n",
4792 iwl3945_irq_handle_error(priv
);
4793 handled
|= CSR_INT_BIT_SW_ERR
;
4796 /* uCode wakes up after power-down sleep */
4797 if (inta
& CSR_INT_BIT_WAKEUP
) {
4798 IWL_DEBUG_ISR("Wakeup interrupt\n");
4799 iwl3945_rx_queue_update_write_ptr(priv
, &priv
->rxq
);
4800 iwl3945_tx_queue_update_write_ptr(priv
, &priv
->txq
[0]);
4801 iwl3945_tx_queue_update_write_ptr(priv
, &priv
->txq
[1]);
4802 iwl3945_tx_queue_update_write_ptr(priv
, &priv
->txq
[2]);
4803 iwl3945_tx_queue_update_write_ptr(priv
, &priv
->txq
[3]);
4804 iwl3945_tx_queue_update_write_ptr(priv
, &priv
->txq
[4]);
4805 iwl3945_tx_queue_update_write_ptr(priv
, &priv
->txq
[5]);
4807 handled
|= CSR_INT_BIT_WAKEUP
;
4810 /* All uCode command responses, including Tx command responses,
4811 * Rx "responses" (frame-received notification), and other
4812 * notifications from uCode come through here*/
4813 if (inta
& (CSR_INT_BIT_FH_RX
| CSR_INT_BIT_SW_RX
)) {
4814 iwl3945_rx_handle(priv
);
4815 handled
|= (CSR_INT_BIT_FH_RX
| CSR_INT_BIT_SW_RX
);
4818 if (inta
& CSR_INT_BIT_FH_TX
) {
4819 IWL_DEBUG_ISR("Tx interrupt\n");
4821 iwl3945_write32(priv
, CSR_FH_INT_STATUS
, (1 << 6));
4822 if (!iwl3945_grab_nic_access(priv
)) {
4823 iwl3945_write_direct32(priv
,
4825 (ALM_FH_SRVC_CHNL
), 0x0);
4826 iwl3945_release_nic_access(priv
);
4828 handled
|= CSR_INT_BIT_FH_TX
;
4831 if (inta
& ~handled
)
4832 IWL_ERROR("Unhandled INTA bits 0x%08x\n", inta
& ~handled
);
4834 if (inta
& ~CSR_INI_SET_MASK
) {
4835 IWL_WARNING("Disabled INTA bits 0x%08x were pending\n",
4836 inta
& ~CSR_INI_SET_MASK
);
4837 IWL_WARNING(" with FH_INT = 0x%08x\n", inta_fh
);
4840 /* Re-enable all interrupts */
4841 iwl3945_enable_interrupts(priv
);
4843 #ifdef CONFIG_IWL3945_DEBUG
4844 if (iwl3945_debug_level
& (IWL_DL_ISR
)) {
4845 inta
= iwl3945_read32(priv
, CSR_INT
);
4846 inta_mask
= iwl3945_read32(priv
, CSR_INT_MASK
);
4847 inta_fh
= iwl3945_read32(priv
, CSR_FH_INT_STATUS
);
4848 IWL_DEBUG_ISR("End inta 0x%08x, enabled 0x%08x, fh 0x%08x, "
4849 "flags 0x%08lx\n", inta
, inta_mask
, inta_fh
, flags
);
4852 spin_unlock_irqrestore(&priv
->lock
, flags
);
4855 static irqreturn_t
iwl3945_isr(int irq
, void *data
)
4857 struct iwl3945_priv
*priv
= data
;
4858 u32 inta
, inta_mask
;
4863 spin_lock(&priv
->lock
);
4865 /* Disable (but don't clear!) interrupts here to avoid
4866 * back-to-back ISRs and sporadic interrupts from our NIC.
4867 * If we have something to service, the tasklet will re-enable ints.
4868 * If we *don't* have something, we'll re-enable before leaving here. */
4869 inta_mask
= iwl3945_read32(priv
, CSR_INT_MASK
); /* just for debug */
4870 iwl3945_write32(priv
, CSR_INT_MASK
, 0x00000000);
4872 /* Discover which interrupts are active/pending */
4873 inta
= iwl3945_read32(priv
, CSR_INT
);
4874 inta_fh
= iwl3945_read32(priv
, CSR_FH_INT_STATUS
);
4876 /* Ignore interrupt if there's nothing in NIC to service.
4877 * This may be due to IRQ shared with another device,
4878 * or due to sporadic interrupts thrown from our NIC. */
4879 if (!inta
&& !inta_fh
) {
4880 IWL_DEBUG_ISR("Ignore interrupt, inta == 0, inta_fh == 0\n");
4884 if ((inta
== 0xFFFFFFFF) || ((inta
& 0xFFFFFFF0) == 0xa5a5a5a0)) {
4885 /* Hardware disappeared */
4886 IWL_WARNING("HARDWARE GONE?? INTA == 0x%080x\n", inta
);
4890 IWL_DEBUG_ISR("ISR inta 0x%08x, enabled 0x%08x, fh 0x%08x\n",
4891 inta
, inta_mask
, inta_fh
);
4893 /* iwl3945_irq_tasklet() will service interrupts and re-enable them */
4894 tasklet_schedule(&priv
->irq_tasklet
);
4896 spin_unlock(&priv
->lock
);
4901 /* re-enable interrupts here since we don't have anything to service. */
4902 iwl3945_enable_interrupts(priv
);
4903 spin_unlock(&priv
->lock
);
4907 /************************** EEPROM BANDS ****************************
4909 * The iwl3945_eeprom_band definitions below provide the mapping from the
4910 * EEPROM contents to the specific channel number supported for each
4913 * For example, iwl3945_priv->eeprom.band_3_channels[4] from the band_3
4914 * definition below maps to physical channel 42 in the 5.2GHz spectrum.
4915 * The specific geography and calibration information for that channel
4916 * is contained in the eeprom map itself.
4918 * During init, we copy the eeprom information and channel map
4919 * information into priv->channel_info_24/52 and priv->channel_map_24/52
4921 * channel_map_24/52 provides the index in the channel_info array for a
4922 * given channel. We have to have two separate maps as there is channel
4923 * overlap with the 2.4GHz and 5.2GHz spectrum as seen in band_1 and
4926 * A value of 0xff stored in the channel_map indicates that the channel
4927 * is not supported by the hardware at all.
4929 * A value of 0xfe in the channel_map indicates that the channel is not
4930 * valid for Tx with the current hardware. This means that
4931 * while the system can tune and receive on a given channel, it may not
4932 * be able to associate or transmit any frames on that
4933 * channel. There is no corresponding channel information for that
4936 *********************************************************************/
4939 static const u8 iwl3945_eeprom_band_1
[14] = {
4940 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14
4944 static const u8 iwl3945_eeprom_band_2
[] = { /* 4915-5080MHz */
4945 183, 184, 185, 187, 188, 189, 192, 196, 7, 8, 11, 12, 16
4948 static const u8 iwl3945_eeprom_band_3
[] = { /* 5170-5320MHz */
4949 34, 36, 38, 40, 42, 44, 46, 48, 52, 56, 60, 64
4952 static const u8 iwl3945_eeprom_band_4
[] = { /* 5500-5700MHz */
4953 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140
4956 static const u8 iwl3945_eeprom_band_5
[] = { /* 5725-5825MHz */
4957 145, 149, 153, 157, 161, 165
4960 static void iwl3945_init_band_reference(const struct iwl3945_priv
*priv
, int band
,
4961 int *eeprom_ch_count
,
4962 const struct iwl3945_eeprom_channel
4964 const u8
**eeprom_ch_index
)
4967 case 1: /* 2.4GHz band */
4968 *eeprom_ch_count
= ARRAY_SIZE(iwl3945_eeprom_band_1
);
4969 *eeprom_ch_info
= priv
->eeprom
.band_1_channels
;
4970 *eeprom_ch_index
= iwl3945_eeprom_band_1
;
4972 case 2: /* 4.9GHz band */
4973 *eeprom_ch_count
= ARRAY_SIZE(iwl3945_eeprom_band_2
);
4974 *eeprom_ch_info
= priv
->eeprom
.band_2_channels
;
4975 *eeprom_ch_index
= iwl3945_eeprom_band_2
;
4977 case 3: /* 5.2GHz band */
4978 *eeprom_ch_count
= ARRAY_SIZE(iwl3945_eeprom_band_3
);
4979 *eeprom_ch_info
= priv
->eeprom
.band_3_channels
;
4980 *eeprom_ch_index
= iwl3945_eeprom_band_3
;
4982 case 4: /* 5.5GHz band */
4983 *eeprom_ch_count
= ARRAY_SIZE(iwl3945_eeprom_band_4
);
4984 *eeprom_ch_info
= priv
->eeprom
.band_4_channels
;
4985 *eeprom_ch_index
= iwl3945_eeprom_band_4
;
4987 case 5: /* 5.7GHz band */
4988 *eeprom_ch_count
= ARRAY_SIZE(iwl3945_eeprom_band_5
);
4989 *eeprom_ch_info
= priv
->eeprom
.band_5_channels
;
4990 *eeprom_ch_index
= iwl3945_eeprom_band_5
;
4999 * iwl3945_get_channel_info - Find driver's private channel info
5001 * Based on band and channel number.
5003 const struct iwl3945_channel_info
*iwl3945_get_channel_info(const struct iwl3945_priv
*priv
,
5004 int phymode
, u16 channel
)
5009 case MODE_IEEE80211A
:
5010 for (i
= 14; i
< priv
->channel_count
; i
++) {
5011 if (priv
->channel_info
[i
].channel
== channel
)
5012 return &priv
->channel_info
[i
];
5016 case MODE_IEEE80211B
:
5017 case MODE_IEEE80211G
:
5018 if (channel
>= 1 && channel
<= 14)
5019 return &priv
->channel_info
[channel
- 1];
5027 #define CHECK_AND_PRINT(x) ((eeprom_ch_info[ch].flags & EEPROM_CHANNEL_##x) \
5031 * iwl3945_init_channel_map - Set up driver's info for all possible channels
5033 static int iwl3945_init_channel_map(struct iwl3945_priv
*priv
)
5035 int eeprom_ch_count
= 0;
5036 const u8
*eeprom_ch_index
= NULL
;
5037 const struct iwl3945_eeprom_channel
*eeprom_ch_info
= NULL
;
5039 struct iwl3945_channel_info
*ch_info
;
5041 if (priv
->channel_count
) {
5042 IWL_DEBUG_INFO("Channel map already initialized.\n");
5046 if (priv
->eeprom
.version
< 0x2f) {
5047 IWL_WARNING("Unsupported EEPROM version: 0x%04X\n",
5048 priv
->eeprom
.version
);
5052 IWL_DEBUG_INFO("Initializing regulatory info from EEPROM\n");
5054 priv
->channel_count
=
5055 ARRAY_SIZE(iwl3945_eeprom_band_1
) +
5056 ARRAY_SIZE(iwl3945_eeprom_band_2
) +
5057 ARRAY_SIZE(iwl3945_eeprom_band_3
) +
5058 ARRAY_SIZE(iwl3945_eeprom_band_4
) +
5059 ARRAY_SIZE(iwl3945_eeprom_band_5
);
5061 IWL_DEBUG_INFO("Parsing data for %d channels.\n", priv
->channel_count
);
5063 priv
->channel_info
= kzalloc(sizeof(struct iwl3945_channel_info
) *
5064 priv
->channel_count
, GFP_KERNEL
);
5065 if (!priv
->channel_info
) {
5066 IWL_ERROR("Could not allocate channel_info\n");
5067 priv
->channel_count
= 0;
5071 ch_info
= priv
->channel_info
;
5073 /* Loop through the 5 EEPROM bands adding them in order to the
5074 * channel map we maintain (that contains additional information than
5075 * what just in the EEPROM) */
5076 for (band
= 1; band
<= 5; band
++) {
5078 iwl3945_init_band_reference(priv
, band
, &eeprom_ch_count
,
5079 &eeprom_ch_info
, &eeprom_ch_index
);
5081 /* Loop through each band adding each of the channels */
5082 for (ch
= 0; ch
< eeprom_ch_count
; ch
++) {
5083 ch_info
->channel
= eeprom_ch_index
[ch
];
5084 ch_info
->phymode
= (band
== 1) ? MODE_IEEE80211B
:
5087 /* permanently store EEPROM's channel regulatory flags
5088 * and max power in channel info database. */
5089 ch_info
->eeprom
= eeprom_ch_info
[ch
];
5091 /* Copy the run-time flags so they are there even on
5092 * invalid channels */
5093 ch_info
->flags
= eeprom_ch_info
[ch
].flags
;
5095 if (!(is_channel_valid(ch_info
))) {
5096 IWL_DEBUG_INFO("Ch. %d Flags %x [%sGHz] - "
5100 is_channel_a_band(ch_info
) ?
5106 /* Initialize regulatory-based run-time data */
5107 ch_info
->max_power_avg
= ch_info
->curr_txpow
=
5108 eeprom_ch_info
[ch
].max_power_avg
;
5109 ch_info
->scan_power
= eeprom_ch_info
[ch
].max_power_avg
;
5110 ch_info
->min_power
= 0;
5112 IWL_DEBUG_INFO("Ch. %d [%sGHz] %s%s%s%s%s%s(0x%02x"
5113 " %ddBm): Ad-Hoc %ssupported\n",
5115 is_channel_a_band(ch_info
) ?
5117 CHECK_AND_PRINT(IBSS
),
5118 CHECK_AND_PRINT(ACTIVE
),
5119 CHECK_AND_PRINT(RADAR
),
5120 CHECK_AND_PRINT(WIDE
),
5121 CHECK_AND_PRINT(NARROW
),
5122 CHECK_AND_PRINT(DFS
),
5123 eeprom_ch_info
[ch
].flags
,
5124 eeprom_ch_info
[ch
].max_power_avg
,
5125 ((eeprom_ch_info
[ch
].
5126 flags
& EEPROM_CHANNEL_IBSS
)
5127 && !(eeprom_ch_info
[ch
].
5128 flags
& EEPROM_CHANNEL_RADAR
))
5131 /* Set the user_txpower_limit to the highest power
5132 * supported by any channel */
5133 if (eeprom_ch_info
[ch
].max_power_avg
>
5134 priv
->user_txpower_limit
)
5135 priv
->user_txpower_limit
=
5136 eeprom_ch_info
[ch
].max_power_avg
;
5142 /* Set up txpower settings in driver for all channels */
5143 if (iwl3945_txpower_set_from_eeprom(priv
))
5149 /* For active scan, listen ACTIVE_DWELL_TIME (msec) on each channel after
5150 * sending probe req. This should be set long enough to hear probe responses
5151 * from more than one AP. */
5152 #define IWL_ACTIVE_DWELL_TIME_24 (20) /* all times in msec */
5153 #define IWL_ACTIVE_DWELL_TIME_52 (10)
5155 /* For faster active scanning, scan will move to the next channel if fewer than
5156 * PLCP_QUIET_THRESH packets are heard on this channel within
5157 * ACTIVE_QUIET_TIME after sending probe request. This shortens the dwell
5158 * time if it's a quiet channel (nothing responded to our probe, and there's
5159 * no other traffic).
5160 * Disable "quiet" feature by setting PLCP_QUIET_THRESH to 0. */
5161 #define IWL_PLCP_QUIET_THRESH __constant_cpu_to_le16(1) /* packets */
5162 #define IWL_ACTIVE_QUIET_TIME __constant_cpu_to_le16(5) /* msec */
5164 /* For passive scan, listen PASSIVE_DWELL_TIME (msec) on each channel.
5165 * Must be set longer than active dwell time.
5166 * For the most reliable scan, set > AP beacon interval (typically 100msec). */
5167 #define IWL_PASSIVE_DWELL_TIME_24 (20) /* all times in msec */
5168 #define IWL_PASSIVE_DWELL_TIME_52 (10)
5169 #define IWL_PASSIVE_DWELL_BASE (100)
5170 #define IWL_CHANNEL_TUNE_TIME 5
5172 static inline u16
iwl3945_get_active_dwell_time(struct iwl3945_priv
*priv
, int phymode
)
5174 if (phymode
== MODE_IEEE80211A
)
5175 return IWL_ACTIVE_DWELL_TIME_52
;
5177 return IWL_ACTIVE_DWELL_TIME_24
;
5180 static u16
iwl3945_get_passive_dwell_time(struct iwl3945_priv
*priv
, int phymode
)
5182 u16 active
= iwl3945_get_active_dwell_time(priv
, phymode
);
5183 u16 passive
= (phymode
!= MODE_IEEE80211A
) ?
5184 IWL_PASSIVE_DWELL_BASE
+ IWL_PASSIVE_DWELL_TIME_24
:
5185 IWL_PASSIVE_DWELL_BASE
+ IWL_PASSIVE_DWELL_TIME_52
;
5187 if (iwl3945_is_associated(priv
)) {
5188 /* If we're associated, we clamp the maximum passive
5189 * dwell time to be 98% of the beacon interval (minus
5190 * 2 * channel tune time) */
5191 passive
= priv
->beacon_int
;
5192 if ((passive
> IWL_PASSIVE_DWELL_BASE
) || !passive
)
5193 passive
= IWL_PASSIVE_DWELL_BASE
;
5194 passive
= (passive
* 98) / 100 - IWL_CHANNEL_TUNE_TIME
* 2;
5197 if (passive
<= active
)
5198 passive
= active
+ 1;
5203 static int iwl3945_get_channels_for_scan(struct iwl3945_priv
*priv
, int phymode
,
5204 u8 is_active
, u8 direct_mask
,
5205 struct iwl3945_scan_channel
*scan_ch
)
5207 const struct ieee80211_channel
*channels
= NULL
;
5208 const struct ieee80211_hw_mode
*hw_mode
;
5209 const struct iwl3945_channel_info
*ch_info
;
5210 u16 passive_dwell
= 0;
5211 u16 active_dwell
= 0;
5214 hw_mode
= iwl3945_get_hw_mode(priv
, phymode
);
5218 channels
= hw_mode
->channels
;
5220 active_dwell
= iwl3945_get_active_dwell_time(priv
, phymode
);
5221 passive_dwell
= iwl3945_get_passive_dwell_time(priv
, phymode
);
5223 for (i
= 0, added
= 0; i
< hw_mode
->num_channels
; i
++) {
5224 if (channels
[i
].chan
==
5225 le16_to_cpu(priv
->active_rxon
.channel
)) {
5226 if (iwl3945_is_associated(priv
)) {
5228 ("Skipping current channel %d\n",
5229 le16_to_cpu(priv
->active_rxon
.channel
));
5232 } else if (priv
->only_active_channel
)
5235 scan_ch
->channel
= channels
[i
].chan
;
5237 ch_info
= iwl3945_get_channel_info(priv
, phymode
, scan_ch
->channel
);
5238 if (!is_channel_valid(ch_info
)) {
5239 IWL_DEBUG_SCAN("Channel %d is INVALID for this SKU.\n",
5244 if (!is_active
|| is_channel_passive(ch_info
) ||
5245 !(channels
[i
].flag
& IEEE80211_CHAN_W_ACTIVE_SCAN
))
5246 scan_ch
->type
= 0; /* passive */
5248 scan_ch
->type
= 1; /* active */
5250 if (scan_ch
->type
& 1)
5251 scan_ch
->type
|= (direct_mask
<< 1);
5253 if (is_channel_narrow(ch_info
))
5254 scan_ch
->type
|= (1 << 7);
5256 scan_ch
->active_dwell
= cpu_to_le16(active_dwell
);
5257 scan_ch
->passive_dwell
= cpu_to_le16(passive_dwell
);
5259 /* Set txpower levels to defaults */
5260 scan_ch
->tpc
.dsp_atten
= 110;
5261 /* scan_pwr_info->tpc.dsp_atten; */
5263 /*scan_pwr_info->tpc.tx_gain; */
5264 if (phymode
== MODE_IEEE80211A
)
5265 scan_ch
->tpc
.tx_gain
= ((1 << 5) | (3 << 3)) | 3;
5267 scan_ch
->tpc
.tx_gain
= ((1 << 5) | (5 << 3));
5268 /* NOTE: if we were doing 6Mb OFDM for scans we'd use
5270 * scan_ch->tpc.tx_gain = ((1<<5) | (2 << 3)) | 3;
5274 IWL_DEBUG_SCAN("Scanning %d [%s %d]\n",
5276 (scan_ch
->type
& 1) ? "ACTIVE" : "PASSIVE",
5277 (scan_ch
->type
& 1) ?
5278 active_dwell
: passive_dwell
);
5284 IWL_DEBUG_SCAN("total channels to scan %d \n", added
);
5288 static void iwl3945_reset_channel_flag(struct iwl3945_priv
*priv
)
5291 for (i
= 0; i
< 3; i
++) {
5292 struct ieee80211_hw_mode
*hw_mode
= (void *)&priv
->modes
[i
];
5293 for (j
= 0; j
< hw_mode
->num_channels
; j
++)
5294 hw_mode
->channels
[j
].flag
= hw_mode
->channels
[j
].val
;
5298 static void iwl3945_init_hw_rates(struct iwl3945_priv
*priv
,
5299 struct ieee80211_rate
*rates
)
5303 for (i
= 0; i
< IWL_RATE_COUNT
; i
++) {
5304 rates
[i
].rate
= iwl3945_rates
[i
].ieee
* 5;
5305 rates
[i
].val
= i
; /* Rate scaling will work on indexes */
5307 rates
[i
].flags
= IEEE80211_RATE_SUPPORTED
;
5308 /* Only OFDM have the bits-per-symbol set */
5309 if ((i
<= IWL_LAST_OFDM_RATE
) && (i
>= IWL_FIRST_OFDM_RATE
))
5310 rates
[i
].flags
|= IEEE80211_RATE_OFDM
;
5313 * If CCK 1M then set rate flag to CCK else CCK_2
5314 * which is CCK | PREAMBLE2
5316 rates
[i
].flags
|= (iwl3945_rates
[i
].plcp
== 10) ?
5317 IEEE80211_RATE_CCK
: IEEE80211_RATE_CCK_2
;
5320 /* Set up which ones are basic rates... */
5321 if (IWL_BASIC_RATES_MASK
& (1 << i
))
5322 rates
[i
].flags
|= IEEE80211_RATE_BASIC
;
5327 * iwl3945_init_geos - Initialize mac80211's geo/channel info based from eeprom
5329 static int iwl3945_init_geos(struct iwl3945_priv
*priv
)
5331 struct iwl3945_channel_info
*ch
;
5332 struct ieee80211_hw_mode
*modes
;
5333 struct ieee80211_channel
*channels
;
5334 struct ieee80211_channel
*geo_ch
;
5335 struct ieee80211_rate
*rates
;
5345 IWL_DEBUG_INFO("Geography modes already initialized.\n");
5346 set_bit(STATUS_GEO_CONFIGURED
, &priv
->status
);
5350 modes
= kzalloc(sizeof(struct ieee80211_hw_mode
) * mode_count
,
5355 channels
= kzalloc(sizeof(struct ieee80211_channel
) *
5356 priv
->channel_count
, GFP_KERNEL
);
5362 rates
= kzalloc((sizeof(struct ieee80211_rate
) * (IWL_MAX_RATES
+ 1)),
5375 /* 5.2GHz channels start after the 2.4GHz channels */
5376 modes
[A
].mode
= MODE_IEEE80211A
;
5377 modes
[A
].channels
= &channels
[ARRAY_SIZE(iwl3945_eeprom_band_1
)];
5378 modes
[A
].rates
= &rates
[4];
5379 modes
[A
].num_rates
= 8; /* just OFDM */
5380 modes
[A
].num_channels
= 0;
5382 modes
[B
].mode
= MODE_IEEE80211B
;
5383 modes
[B
].channels
= channels
;
5384 modes
[B
].rates
= rates
;
5385 modes
[B
].num_rates
= 4; /* just CCK */
5386 modes
[B
].num_channels
= 0;
5388 modes
[G
].mode
= MODE_IEEE80211G
;
5389 modes
[G
].channels
= channels
;
5390 modes
[G
].rates
= rates
;
5391 modes
[G
].num_rates
= 12; /* OFDM & CCK */
5392 modes
[G
].num_channels
= 0;
5394 priv
->ieee_channels
= channels
;
5395 priv
->ieee_rates
= rates
;
5397 iwl3945_init_hw_rates(priv
, rates
);
5399 for (i
= 0, geo_ch
= channels
; i
< priv
->channel_count
; i
++) {
5400 ch
= &priv
->channel_info
[i
];
5402 if (!is_channel_valid(ch
)) {
5403 IWL_DEBUG_INFO("Channel %d [%sGHz] is restricted -- "
5405 ch
->channel
, is_channel_a_band(ch
) ?
5410 if (is_channel_a_band(ch
))
5411 geo_ch
= &modes
[A
].channels
[modes
[A
].num_channels
++];
5413 geo_ch
= &modes
[B
].channels
[modes
[B
].num_channels
++];
5414 modes
[G
].num_channels
++;
5417 geo_ch
->freq
= ieee80211chan2mhz(ch
->channel
);
5418 geo_ch
->chan
= ch
->channel
;
5419 geo_ch
->power_level
= ch
->max_power_avg
;
5420 geo_ch
->antenna_max
= 0xff;
5422 if (is_channel_valid(ch
)) {
5423 geo_ch
->flag
= IEEE80211_CHAN_W_SCAN
;
5424 if (ch
->flags
& EEPROM_CHANNEL_IBSS
)
5425 geo_ch
->flag
|= IEEE80211_CHAN_W_IBSS
;
5427 if (ch
->flags
& EEPROM_CHANNEL_ACTIVE
)
5428 geo_ch
->flag
|= IEEE80211_CHAN_W_ACTIVE_SCAN
;
5430 if (ch
->flags
& EEPROM_CHANNEL_RADAR
)
5431 geo_ch
->flag
|= IEEE80211_CHAN_W_RADAR_DETECT
;
5433 if (ch
->max_power_avg
> priv
->max_channel_txpower_limit
)
5434 priv
->max_channel_txpower_limit
=
5438 geo_ch
->val
= geo_ch
->flag
;
5441 if ((modes
[A
].num_channels
== 0) && priv
->is_abg
) {
5442 printk(KERN_INFO DRV_NAME
5443 ": Incorrectly detected BG card as ABG. Please send "
5444 "your PCI ID 0x%04X:0x%04X to maintainer.\n",
5445 priv
->pci_dev
->device
, priv
->pci_dev
->subsystem_device
);
5449 printk(KERN_INFO DRV_NAME
5450 ": Tunable channels: %d 802.11bg, %d 802.11a channels\n",
5451 modes
[G
].num_channels
, modes
[A
].num_channels
);
5454 * NOTE: We register these in preference of order -- the
5455 * stack doesn't currently (as of 7.0.6 / Apr 24 '07) pick
5456 * a phymode based on rates or AP capabilities but seems to
5457 * configure it purely on if the channel being configured
5458 * is supported by a mode -- and the first match is taken
5461 if (modes
[G
].num_channels
)
5462 ieee80211_register_hwmode(priv
->hw
, &modes
[G
]);
5463 if (modes
[B
].num_channels
)
5464 ieee80211_register_hwmode(priv
->hw
, &modes
[B
]);
5465 if (modes
[A
].num_channels
)
5466 ieee80211_register_hwmode(priv
->hw
, &modes
[A
]);
5468 priv
->modes
= modes
;
5469 set_bit(STATUS_GEO_CONFIGURED
, &priv
->status
);
5474 /******************************************************************************
5476 * uCode download functions
5478 ******************************************************************************/
5480 static void iwl3945_dealloc_ucode_pci(struct iwl3945_priv
*priv
)
5482 if (priv
->ucode_code
.v_addr
!= NULL
) {
5483 pci_free_consistent(priv
->pci_dev
,
5484 priv
->ucode_code
.len
,
5485 priv
->ucode_code
.v_addr
,
5486 priv
->ucode_code
.p_addr
);
5487 priv
->ucode_code
.v_addr
= NULL
;
5489 if (priv
->ucode_data
.v_addr
!= NULL
) {
5490 pci_free_consistent(priv
->pci_dev
,
5491 priv
->ucode_data
.len
,
5492 priv
->ucode_data
.v_addr
,
5493 priv
->ucode_data
.p_addr
);
5494 priv
->ucode_data
.v_addr
= NULL
;
5496 if (priv
->ucode_data_backup
.v_addr
!= NULL
) {
5497 pci_free_consistent(priv
->pci_dev
,
5498 priv
->ucode_data_backup
.len
,
5499 priv
->ucode_data_backup
.v_addr
,
5500 priv
->ucode_data_backup
.p_addr
);
5501 priv
->ucode_data_backup
.v_addr
= NULL
;
5503 if (priv
->ucode_init
.v_addr
!= NULL
) {
5504 pci_free_consistent(priv
->pci_dev
,
5505 priv
->ucode_init
.len
,
5506 priv
->ucode_init
.v_addr
,
5507 priv
->ucode_init
.p_addr
);
5508 priv
->ucode_init
.v_addr
= NULL
;
5510 if (priv
->ucode_init_data
.v_addr
!= NULL
) {
5511 pci_free_consistent(priv
->pci_dev
,
5512 priv
->ucode_init_data
.len
,
5513 priv
->ucode_init_data
.v_addr
,
5514 priv
->ucode_init_data
.p_addr
);
5515 priv
->ucode_init_data
.v_addr
= NULL
;
5517 if (priv
->ucode_boot
.v_addr
!= NULL
) {
5518 pci_free_consistent(priv
->pci_dev
,
5519 priv
->ucode_boot
.len
,
5520 priv
->ucode_boot
.v_addr
,
5521 priv
->ucode_boot
.p_addr
);
5522 priv
->ucode_boot
.v_addr
= NULL
;
5527 * iwl3945_verify_inst_full - verify runtime uCode image in card vs. host,
5528 * looking at all data.
5530 static int iwl3945_verify_inst_full(struct iwl3945_priv
*priv
, __le32
* image
, u32 len
)
5537 IWL_DEBUG_INFO("ucode inst image size is %u\n", len
);
5539 rc
= iwl3945_grab_nic_access(priv
);
5543 iwl3945_write_direct32(priv
, HBUS_TARG_MEM_RADDR
, RTC_INST_LOWER_BOUND
);
5546 for (; len
> 0; len
-= sizeof(u32
), image
++) {
5547 /* read data comes through single port, auto-incr addr */
5548 /* NOTE: Use the debugless read so we don't flood kernel log
5549 * if IWL_DL_IO is set */
5550 val
= _iwl3945_read_direct32(priv
, HBUS_TARG_MEM_RDAT
);
5551 if (val
!= le32_to_cpu(*image
)) {
5552 IWL_ERROR("uCode INST section is invalid at "
5553 "offset 0x%x, is 0x%x, s/b 0x%x\n",
5554 save_len
- len
, val
, le32_to_cpu(*image
));
5562 iwl3945_release_nic_access(priv
);
5565 IWL_DEBUG_INFO("ucode image in INSTRUCTION memory is good\n");
5572 * iwl3945_verify_inst_sparse - verify runtime uCode image in card vs. host,
5573 * using sample data 100 bytes apart. If these sample points are good,
5574 * it's a pretty good bet that everything between them is good, too.
5576 static int iwl3945_verify_inst_sparse(struct iwl3945_priv
*priv
, __le32
*image
, u32 len
)
5583 IWL_DEBUG_INFO("ucode inst image size is %u\n", len
);
5585 rc
= iwl3945_grab_nic_access(priv
);
5589 for (i
= 0; i
< len
; i
+= 100, image
+= 100/sizeof(u32
)) {
5590 /* read data comes through single port, auto-incr addr */
5591 /* NOTE: Use the debugless read so we don't flood kernel log
5592 * if IWL_DL_IO is set */
5593 iwl3945_write_direct32(priv
, HBUS_TARG_MEM_RADDR
,
5594 i
+ RTC_INST_LOWER_BOUND
);
5595 val
= _iwl3945_read_direct32(priv
, HBUS_TARG_MEM_RDAT
);
5596 if (val
!= le32_to_cpu(*image
)) {
5597 #if 0 /* Enable this if you want to see details */
5598 IWL_ERROR("uCode INST section is invalid at "
5599 "offset 0x%x, is 0x%x, s/b 0x%x\n",
5609 iwl3945_release_nic_access(priv
);
5616 * iwl3945_verify_ucode - determine which instruction image is in SRAM,
5617 * and verify its contents
5619 static int iwl3945_verify_ucode(struct iwl3945_priv
*priv
)
5626 image
= (__le32
*)priv
->ucode_boot
.v_addr
;
5627 len
= priv
->ucode_boot
.len
;
5628 rc
= iwl3945_verify_inst_sparse(priv
, image
, len
);
5630 IWL_DEBUG_INFO("Bootstrap uCode is good in inst SRAM\n");
5634 /* Try initialize */
5635 image
= (__le32
*)priv
->ucode_init
.v_addr
;
5636 len
= priv
->ucode_init
.len
;
5637 rc
= iwl3945_verify_inst_sparse(priv
, image
, len
);
5639 IWL_DEBUG_INFO("Initialize uCode is good in inst SRAM\n");
5643 /* Try runtime/protocol */
5644 image
= (__le32
*)priv
->ucode_code
.v_addr
;
5645 len
= priv
->ucode_code
.len
;
5646 rc
= iwl3945_verify_inst_sparse(priv
, image
, len
);
5648 IWL_DEBUG_INFO("Runtime uCode is good in inst SRAM\n");
5652 IWL_ERROR("NO VALID UCODE IMAGE IN INSTRUCTION SRAM!!\n");
5654 /* Since nothing seems to match, show first several data entries in
5655 * instruction SRAM, so maybe visual inspection will give a clue.
5656 * Selection of bootstrap image (vs. other images) is arbitrary. */
5657 image
= (__le32
*)priv
->ucode_boot
.v_addr
;
5658 len
= priv
->ucode_boot
.len
;
5659 rc
= iwl3945_verify_inst_full(priv
, image
, len
);
5665 /* check contents of special bootstrap uCode SRAM */
5666 static int iwl3945_verify_bsm(struct iwl3945_priv
*priv
)
5668 __le32
*image
= priv
->ucode_boot
.v_addr
;
5669 u32 len
= priv
->ucode_boot
.len
;
5673 IWL_DEBUG_INFO("Begin verify bsm\n");
5675 /* verify BSM SRAM contents */
5676 val
= iwl3945_read_prph(priv
, BSM_WR_DWCOUNT_REG
);
5677 for (reg
= BSM_SRAM_LOWER_BOUND
;
5678 reg
< BSM_SRAM_LOWER_BOUND
+ len
;
5679 reg
+= sizeof(u32
), image
++) {
5680 val
= iwl3945_read_prph(priv
, reg
);
5681 if (val
!= le32_to_cpu(*image
)) {
5682 IWL_ERROR("BSM uCode verification failed at "
5683 "addr 0x%08X+%u (of %u), is 0x%x, s/b 0x%x\n",
5684 BSM_SRAM_LOWER_BOUND
,
5685 reg
- BSM_SRAM_LOWER_BOUND
, len
,
5686 val
, le32_to_cpu(*image
));
5691 IWL_DEBUG_INFO("BSM bootstrap uCode image OK\n");
5697 * iwl3945_load_bsm - Load bootstrap instructions
5701 * The Bootstrap State Machine (BSM) stores a short bootstrap uCode program
5702 * in special SRAM that does not power down during RFKILL. When powering back
5703 * up after power-saving sleeps (or during initial uCode load), the BSM loads
5704 * the bootstrap program into the on-board processor, and starts it.
5706 * The bootstrap program loads (via DMA) instructions and data for a new
5707 * program from host DRAM locations indicated by the host driver in the
5708 * BSM_DRAM_* registers. Once the new program is loaded, it starts
5711 * When initializing the NIC, the host driver points the BSM to the
5712 * "initialize" uCode image. This uCode sets up some internal data, then
5713 * notifies host via "initialize alive" that it is complete.
5715 * The host then replaces the BSM_DRAM_* pointer values to point to the
5716 * normal runtime uCode instructions and a backup uCode data cache buffer
5717 * (filled initially with starting data values for the on-board processor),
5718 * then triggers the "initialize" uCode to load and launch the runtime uCode,
5719 * which begins normal operation.
5721 * When doing a power-save shutdown, runtime uCode saves data SRAM into
5722 * the backup data cache in DRAM before SRAM is powered down.
5724 * When powering back up, the BSM loads the bootstrap program. This reloads
5725 * the runtime uCode instructions and the backup data cache into SRAM,
5726 * and re-launches the runtime uCode from where it left off.
5728 static int iwl3945_load_bsm(struct iwl3945_priv
*priv
)
5730 __le32
*image
= priv
->ucode_boot
.v_addr
;
5731 u32 len
= priv
->ucode_boot
.len
;
5741 IWL_DEBUG_INFO("Begin load bsm\n");
5743 /* make sure bootstrap program is no larger than BSM's SRAM size */
5744 if (len
> IWL_MAX_BSM_SIZE
)
5747 /* Tell bootstrap uCode where to find the "Initialize" uCode
5748 * in host DRAM ... host DRAM physical address bits 31:0 for 3945.
5749 * NOTE: iwl3945_initialize_alive_start() will replace these values,
5750 * after the "initialize" uCode has run, to point to
5751 * runtime/protocol instructions and backup data cache. */
5752 pinst
= priv
->ucode_init
.p_addr
;
5753 pdata
= priv
->ucode_init_data
.p_addr
;
5754 inst_len
= priv
->ucode_init
.len
;
5755 data_len
= priv
->ucode_init_data
.len
;
5757 rc
= iwl3945_grab_nic_access(priv
);
5761 iwl3945_write_prph(priv
, BSM_DRAM_INST_PTR_REG
, pinst
);
5762 iwl3945_write_prph(priv
, BSM_DRAM_DATA_PTR_REG
, pdata
);
5763 iwl3945_write_prph(priv
, BSM_DRAM_INST_BYTECOUNT_REG
, inst_len
);
5764 iwl3945_write_prph(priv
, BSM_DRAM_DATA_BYTECOUNT_REG
, data_len
);
5766 /* Fill BSM memory with bootstrap instructions */
5767 for (reg_offset
= BSM_SRAM_LOWER_BOUND
;
5768 reg_offset
< BSM_SRAM_LOWER_BOUND
+ len
;
5769 reg_offset
+= sizeof(u32
), image
++)
5770 _iwl3945_write_prph(priv
, reg_offset
,
5771 le32_to_cpu(*image
));
5773 rc
= iwl3945_verify_bsm(priv
);
5775 iwl3945_release_nic_access(priv
);
5779 /* Tell BSM to copy from BSM SRAM into instruction SRAM, when asked */
5780 iwl3945_write_prph(priv
, BSM_WR_MEM_SRC_REG
, 0x0);
5781 iwl3945_write_prph(priv
, BSM_WR_MEM_DST_REG
,
5782 RTC_INST_LOWER_BOUND
);
5783 iwl3945_write_prph(priv
, BSM_WR_DWCOUNT_REG
, len
/ sizeof(u32
));
5785 /* Load bootstrap code into instruction SRAM now,
5786 * to prepare to load "initialize" uCode */
5787 iwl3945_write_prph(priv
, BSM_WR_CTRL_REG
,
5788 BSM_WR_CTRL_REG_BIT_START
);
5790 /* Wait for load of bootstrap uCode to finish */
5791 for (i
= 0; i
< 100; i
++) {
5792 done
= iwl3945_read_prph(priv
, BSM_WR_CTRL_REG
);
5793 if (!(done
& BSM_WR_CTRL_REG_BIT_START
))
5798 IWL_DEBUG_INFO("BSM write complete, poll %d iterations\n", i
);
5800 IWL_ERROR("BSM write did not complete!\n");
5804 /* Enable future boot loads whenever power management unit triggers it
5805 * (e.g. when powering back up after power-save shutdown) */
5806 iwl3945_write_prph(priv
, BSM_WR_CTRL_REG
,
5807 BSM_WR_CTRL_REG_BIT_START_EN
);
5809 iwl3945_release_nic_access(priv
);
5814 static void iwl3945_nic_start(struct iwl3945_priv
*priv
)
5816 /* Remove all resets to allow NIC to operate */
5817 iwl3945_write32(priv
, CSR_RESET
, 0);
5820 static int iwl3945_alloc_fw_desc(struct pci_dev
*pci_dev
, struct fw_desc
*desc
)
5822 desc
->v_addr
= pci_alloc_consistent(pci_dev
, desc
->len
, &desc
->p_addr
);
5823 return (desc
->v_addr
!= NULL
) ? 0 : -ENOMEM
;
5827 * iwl3945_read_ucode - Read uCode images from disk file.
5829 * Copy into buffers for card to fetch via bus-mastering
5831 static int iwl3945_read_ucode(struct iwl3945_priv
*priv
)
5833 struct iwl3945_ucode
*ucode
;
5835 const struct firmware
*ucode_raw
;
5836 /* firmware file name contains uCode/driver compatibility version */
5837 const char *name
= "iwlwifi-3945" IWL3945_UCODE_API
".ucode";
5840 u32 ver
, inst_size
, data_size
, init_size
, init_data_size
, boot_size
;
5842 /* Ask kernel firmware_class module to get the boot firmware off disk.
5843 * request_firmware() is synchronous, file is in memory on return. */
5844 ret
= request_firmware(&ucode_raw
, name
, &priv
->pci_dev
->dev
);
5846 IWL_ERROR("%s firmware file req failed: Reason %d\n",
5851 IWL_DEBUG_INFO("Got firmware '%s' file (%zd bytes) from disk\n",
5852 name
, ucode_raw
->size
);
5854 /* Make sure that we got at least our header! */
5855 if (ucode_raw
->size
< sizeof(*ucode
)) {
5856 IWL_ERROR("File size way too small!\n");
5861 /* Data from ucode file: header followed by uCode images */
5862 ucode
= (void *)ucode_raw
->data
;
5864 ver
= le32_to_cpu(ucode
->ver
);
5865 inst_size
= le32_to_cpu(ucode
->inst_size
);
5866 data_size
= le32_to_cpu(ucode
->data_size
);
5867 init_size
= le32_to_cpu(ucode
->init_size
);
5868 init_data_size
= le32_to_cpu(ucode
->init_data_size
);
5869 boot_size
= le32_to_cpu(ucode
->boot_size
);
5871 IWL_DEBUG_INFO("f/w package hdr ucode version = 0x%x\n", ver
);
5872 IWL_DEBUG_INFO("f/w package hdr runtime inst size = %u\n", inst_size
);
5873 IWL_DEBUG_INFO("f/w package hdr runtime data size = %u\n", data_size
);
5874 IWL_DEBUG_INFO("f/w package hdr init inst size = %u\n", init_size
);
5875 IWL_DEBUG_INFO("f/w package hdr init data size = %u\n", init_data_size
);
5876 IWL_DEBUG_INFO("f/w package hdr boot inst size = %u\n", boot_size
);
5878 /* Verify size of file vs. image size info in file's header */
5879 if (ucode_raw
->size
< sizeof(*ucode
) +
5880 inst_size
+ data_size
+ init_size
+
5881 init_data_size
+ boot_size
) {
5883 IWL_DEBUG_INFO("uCode file size %d too small\n",
5884 (int)ucode_raw
->size
);
5889 /* Verify that uCode images will fit in card's SRAM */
5890 if (inst_size
> IWL_MAX_INST_SIZE
) {
5891 IWL_DEBUG_INFO("uCode instr len %d too large to fit in\n",
5897 if (data_size
> IWL_MAX_DATA_SIZE
) {
5898 IWL_DEBUG_INFO("uCode data len %d too large to fit in\n",
5903 if (init_size
> IWL_MAX_INST_SIZE
) {
5904 IWL_DEBUG_INFO("uCode init instr len %d too large to fit in\n",
5909 if (init_data_size
> IWL_MAX_DATA_SIZE
) {
5910 IWL_DEBUG_INFO("uCode init data len %d too large to fit in\n",
5915 if (boot_size
> IWL_MAX_BSM_SIZE
) {
5916 IWL_DEBUG_INFO("uCode boot instr len %d too large to fit in\n",
5922 /* Allocate ucode buffers for card's bus-master loading ... */
5924 /* Runtime instructions and 2 copies of data:
5925 * 1) unmodified from disk
5926 * 2) backup cache for save/restore during power-downs */
5927 priv
->ucode_code
.len
= inst_size
;
5928 iwl3945_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_code
);
5930 priv
->ucode_data
.len
= data_size
;
5931 iwl3945_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_data
);
5933 priv
->ucode_data_backup
.len
= data_size
;
5934 iwl3945_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_data_backup
);
5936 if (!priv
->ucode_code
.v_addr
|| !priv
->ucode_data
.v_addr
||
5937 !priv
->ucode_data_backup
.v_addr
)
5940 /* Initialization instructions and data */
5941 if (init_size
&& init_data_size
) {
5942 priv
->ucode_init
.len
= init_size
;
5943 iwl3945_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_init
);
5945 priv
->ucode_init_data
.len
= init_data_size
;
5946 iwl3945_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_init_data
);
5948 if (!priv
->ucode_init
.v_addr
|| !priv
->ucode_init_data
.v_addr
)
5952 /* Bootstrap (instructions only, no data) */
5954 priv
->ucode_boot
.len
= boot_size
;
5955 iwl3945_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_boot
);
5957 if (!priv
->ucode_boot
.v_addr
)
5961 /* Copy images into buffers for card's bus-master reads ... */
5963 /* Runtime instructions (first block of data in file) */
5964 src
= &ucode
->data
[0];
5965 len
= priv
->ucode_code
.len
;
5966 IWL_DEBUG_INFO("Copying (but not loading) uCode instr len %Zd\n", len
);
5967 memcpy(priv
->ucode_code
.v_addr
, src
, len
);
5968 IWL_DEBUG_INFO("uCode instr buf vaddr = 0x%p, paddr = 0x%08x\n",
5969 priv
->ucode_code
.v_addr
, (u32
)priv
->ucode_code
.p_addr
);
5971 /* Runtime data (2nd block)
5972 * NOTE: Copy into backup buffer will be done in iwl3945_up() */
5973 src
= &ucode
->data
[inst_size
];
5974 len
= priv
->ucode_data
.len
;
5975 IWL_DEBUG_INFO("Copying (but not loading) uCode data len %Zd\n", len
);
5976 memcpy(priv
->ucode_data
.v_addr
, src
, len
);
5977 memcpy(priv
->ucode_data_backup
.v_addr
, src
, len
);
5979 /* Initialization instructions (3rd block) */
5981 src
= &ucode
->data
[inst_size
+ data_size
];
5982 len
= priv
->ucode_init
.len
;
5983 IWL_DEBUG_INFO("Copying (but not loading) init instr len %Zd\n",
5985 memcpy(priv
->ucode_init
.v_addr
, src
, len
);
5988 /* Initialization data (4th block) */
5989 if (init_data_size
) {
5990 src
= &ucode
->data
[inst_size
+ data_size
+ init_size
];
5991 len
= priv
->ucode_init_data
.len
;
5992 IWL_DEBUG_INFO("Copying (but not loading) init data len %d\n",
5994 memcpy(priv
->ucode_init_data
.v_addr
, src
, len
);
5997 /* Bootstrap instructions (5th block) */
5998 src
= &ucode
->data
[inst_size
+ data_size
+ init_size
+ init_data_size
];
5999 len
= priv
->ucode_boot
.len
;
6000 IWL_DEBUG_INFO("Copying (but not loading) boot instr len %d\n",
6002 memcpy(priv
->ucode_boot
.v_addr
, src
, len
);
6004 /* We have our copies now, allow OS release its copies */
6005 release_firmware(ucode_raw
);
6009 IWL_ERROR("failed to allocate pci memory\n");
6011 iwl3945_dealloc_ucode_pci(priv
);
6014 release_firmware(ucode_raw
);
6022 * iwl3945_set_ucode_ptrs - Set uCode address location
6024 * Tell initialization uCode where to find runtime uCode.
6026 * BSM registers initially contain pointers to initialization uCode.
6027 * We need to replace them to load runtime uCode inst and data,
6028 * and to save runtime data when powering down.
6030 static int iwl3945_set_ucode_ptrs(struct iwl3945_priv
*priv
)
6035 unsigned long flags
;
6037 /* bits 31:0 for 3945 */
6038 pinst
= priv
->ucode_code
.p_addr
;
6039 pdata
= priv
->ucode_data_backup
.p_addr
;
6041 spin_lock_irqsave(&priv
->lock
, flags
);
6042 rc
= iwl3945_grab_nic_access(priv
);
6044 spin_unlock_irqrestore(&priv
->lock
, flags
);
6048 /* Tell bootstrap uCode where to find image to load */
6049 iwl3945_write_prph(priv
, BSM_DRAM_INST_PTR_REG
, pinst
);
6050 iwl3945_write_prph(priv
, BSM_DRAM_DATA_PTR_REG
, pdata
);
6051 iwl3945_write_prph(priv
, BSM_DRAM_DATA_BYTECOUNT_REG
,
6052 priv
->ucode_data
.len
);
6054 /* Inst bytecount must be last to set up, bit 31 signals uCode
6055 * that all new ptr/size info is in place */
6056 iwl3945_write_prph(priv
, BSM_DRAM_INST_BYTECOUNT_REG
,
6057 priv
->ucode_code
.len
| BSM_DRAM_INST_LOAD
);
6059 iwl3945_release_nic_access(priv
);
6061 spin_unlock_irqrestore(&priv
->lock
, flags
);
6063 IWL_DEBUG_INFO("Runtime uCode pointers are set.\n");
6069 * iwl3945_init_alive_start - Called after REPLY_ALIVE notification received
6071 * Called after REPLY_ALIVE notification received from "initialize" uCode.
6073 * Tell "initialize" uCode to go ahead and load the runtime uCode.
6075 static void iwl3945_init_alive_start(struct iwl3945_priv
*priv
)
6077 /* Check alive response for "valid" sign from uCode */
6078 if (priv
->card_alive_init
.is_valid
!= UCODE_VALID_OK
) {
6079 /* We had an error bringing up the hardware, so take it
6080 * all the way back down so we can try again */
6081 IWL_DEBUG_INFO("Initialize Alive failed.\n");
6085 /* Bootstrap uCode has loaded initialize uCode ... verify inst image.
6086 * This is a paranoid check, because we would not have gotten the
6087 * "initialize" alive if code weren't properly loaded. */
6088 if (iwl3945_verify_ucode(priv
)) {
6089 /* Runtime instruction load was bad;
6090 * take it all the way back down so we can try again */
6091 IWL_DEBUG_INFO("Bad \"initialize\" uCode load.\n");
6095 /* Send pointers to protocol/runtime uCode image ... init code will
6096 * load and launch runtime uCode, which will send us another "Alive"
6098 IWL_DEBUG_INFO("Initialization Alive received.\n");
6099 if (iwl3945_set_ucode_ptrs(priv
)) {
6100 /* Runtime instruction load won't happen;
6101 * take it all the way back down so we can try again */
6102 IWL_DEBUG_INFO("Couldn't set up uCode pointers.\n");
6108 queue_work(priv
->workqueue
, &priv
->restart
);
6113 * iwl3945_alive_start - called after REPLY_ALIVE notification received
6114 * from protocol/runtime uCode (initialization uCode's
6115 * Alive gets handled by iwl3945_init_alive_start()).
6117 static void iwl3945_alive_start(struct iwl3945_priv
*priv
)
6120 int thermal_spin
= 0;
6123 IWL_DEBUG_INFO("Runtime Alive received.\n");
6125 if (priv
->card_alive
.is_valid
!= UCODE_VALID_OK
) {
6126 /* We had an error bringing up the hardware, so take it
6127 * all the way back down so we can try again */
6128 IWL_DEBUG_INFO("Alive failed.\n");
6132 /* Initialize uCode has loaded Runtime uCode ... verify inst image.
6133 * This is a paranoid check, because we would not have gotten the
6134 * "runtime" alive if code weren't properly loaded. */
6135 if (iwl3945_verify_ucode(priv
)) {
6136 /* Runtime instruction load was bad;
6137 * take it all the way back down so we can try again */
6138 IWL_DEBUG_INFO("Bad runtime uCode load.\n");
6142 iwl3945_clear_stations_table(priv
);
6144 rc
= iwl3945_grab_nic_access(priv
);
6146 IWL_WARNING("Can not read rfkill status from adapter\n");
6150 rfkill
= iwl3945_read_prph(priv
, APMG_RFKILL_REG
);
6151 IWL_DEBUG_INFO("RFKILL status: 0x%x\n", rfkill
);
6152 iwl3945_release_nic_access(priv
);
6155 clear_bit(STATUS_RF_KILL_HW
, &priv
->status
);
6156 /* if rfkill is not on, then wait for thermal
6157 * sensor in adapter to kick in */
6158 while (iwl3945_hw_get_temperature(priv
) == 0) {
6164 IWL_DEBUG_INFO("Thermal calibration took %dus\n",
6167 set_bit(STATUS_RF_KILL_HW
, &priv
->status
);
6169 /* After the ALIVE response, we can send commands to 3945 uCode */
6170 set_bit(STATUS_ALIVE
, &priv
->status
);
6172 /* Clear out the uCode error bit if it is set */
6173 clear_bit(STATUS_FW_ERROR
, &priv
->status
);
6175 rc
= iwl3945_init_channel_map(priv
);
6177 IWL_ERROR("initializing regulatory failed: %d\n", rc
);
6181 iwl3945_init_geos(priv
);
6183 if (iwl3945_is_rfkill(priv
))
6186 if (!priv
->mac80211_registered
) {
6187 /* Unlock so any user space entry points can call back into
6188 * the driver without a deadlock... */
6189 mutex_unlock(&priv
->mutex
);
6190 iwl3945_rate_control_register(priv
->hw
);
6191 rc
= ieee80211_register_hw(priv
->hw
);
6192 priv
->hw
->conf
.beacon_int
= 100;
6193 mutex_lock(&priv
->mutex
);
6196 iwl3945_rate_control_unregister(priv
->hw
);
6197 IWL_ERROR("Failed to register network "
6198 "device (error %d)\n", rc
);
6202 priv
->mac80211_registered
= 1;
6204 iwl3945_reset_channel_flag(priv
);
6206 ieee80211_start_queues(priv
->hw
);
6208 priv
->active_rate
= priv
->rates_mask
;
6209 priv
->active_rate_basic
= priv
->rates_mask
& IWL_BASIC_RATES_MASK
;
6211 iwl3945_send_power_mode(priv
, IWL_POWER_LEVEL(priv
->power_mode
));
6213 if (iwl3945_is_associated(priv
)) {
6214 struct iwl3945_rxon_cmd
*active_rxon
=
6215 (struct iwl3945_rxon_cmd
*)(&priv
->active_rxon
);
6217 memcpy(&priv
->staging_rxon
, &priv
->active_rxon
,
6218 sizeof(priv
->staging_rxon
));
6219 active_rxon
->filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
6221 /* Initialize our rx_config data */
6222 iwl3945_connection_init_rx_config(priv
);
6223 memcpy(priv
->staging_rxon
.node_addr
, priv
->mac_addr
, ETH_ALEN
);
6226 /* Configure Bluetooth device coexistence support */
6227 iwl3945_send_bt_config(priv
);
6229 /* Configure the adapter for unassociated operation */
6230 iwl3945_commit_rxon(priv
);
6232 /* At this point, the NIC is initialized and operational */
6233 priv
->notif_missed_beacons
= 0;
6234 set_bit(STATUS_READY
, &priv
->status
);
6236 iwl3945_reg_txpower_periodic(priv
);
6238 IWL_DEBUG_INFO("ALIVE processing complete.\n");
6240 if (priv
->error_recovering
)
6241 iwl3945_error_recovery(priv
);
6246 queue_work(priv
->workqueue
, &priv
->restart
);
6249 static void iwl3945_cancel_deferred_work(struct iwl3945_priv
*priv
);
6251 static void __iwl3945_down(struct iwl3945_priv
*priv
)
6253 unsigned long flags
;
6254 int exit_pending
= test_bit(STATUS_EXIT_PENDING
, &priv
->status
);
6255 struct ieee80211_conf
*conf
= NULL
;
6257 IWL_DEBUG_INFO(DRV_NAME
" is going down\n");
6259 conf
= ieee80211_get_hw_conf(priv
->hw
);
6262 set_bit(STATUS_EXIT_PENDING
, &priv
->status
);
6264 iwl3945_clear_stations_table(priv
);
6266 /* Unblock any waiting calls */
6267 wake_up_interruptible_all(&priv
->wait_command_queue
);
6269 /* Wipe out the EXIT_PENDING status bit if we are not actually
6270 * exiting the module */
6272 clear_bit(STATUS_EXIT_PENDING
, &priv
->status
);
6274 /* stop and reset the on-board processor */
6275 iwl3945_write32(priv
, CSR_RESET
, CSR_RESET_REG_FLAG_NEVO_RESET
);
6277 /* tell the device to stop sending interrupts */
6278 iwl3945_disable_interrupts(priv
);
6280 if (priv
->mac80211_registered
)
6281 ieee80211_stop_queues(priv
->hw
);
6283 /* If we have not previously called iwl3945_init() then
6284 * clear all bits but the RF Kill and SUSPEND bits and return */
6285 if (!iwl3945_is_init(priv
)) {
6286 priv
->status
= test_bit(STATUS_RF_KILL_HW
, &priv
->status
) <<
6288 test_bit(STATUS_RF_KILL_SW
, &priv
->status
) <<
6290 test_bit(STATUS_IN_SUSPEND
, &priv
->status
) <<
6295 /* ...otherwise clear out all the status bits but the RF Kill and
6296 * SUSPEND bits and continue taking the NIC down. */
6297 priv
->status
&= test_bit(STATUS_RF_KILL_HW
, &priv
->status
) <<
6299 test_bit(STATUS_RF_KILL_SW
, &priv
->status
) <<
6301 test_bit(STATUS_IN_SUSPEND
, &priv
->status
) <<
6303 test_bit(STATUS_FW_ERROR
, &priv
->status
) <<
6306 spin_lock_irqsave(&priv
->lock
, flags
);
6307 iwl3945_clear_bit(priv
, CSR_GP_CNTRL
, CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ
);
6308 spin_unlock_irqrestore(&priv
->lock
, flags
);
6310 iwl3945_hw_txq_ctx_stop(priv
);
6311 iwl3945_hw_rxq_stop(priv
);
6313 spin_lock_irqsave(&priv
->lock
, flags
);
6314 if (!iwl3945_grab_nic_access(priv
)) {
6315 iwl3945_write_prph(priv
, APMG_CLK_DIS_REG
,
6316 APMG_CLK_VAL_DMA_CLK_RQT
);
6317 iwl3945_release_nic_access(priv
);
6319 spin_unlock_irqrestore(&priv
->lock
, flags
);
6323 iwl3945_hw_nic_stop_master(priv
);
6324 iwl3945_set_bit(priv
, CSR_RESET
, CSR_RESET_REG_FLAG_SW_RESET
);
6325 iwl3945_hw_nic_reset(priv
);
6328 memset(&priv
->card_alive
, 0, sizeof(struct iwl3945_alive_resp
));
6330 if (priv
->ibss_beacon
)
6331 dev_kfree_skb(priv
->ibss_beacon
);
6332 priv
->ibss_beacon
= NULL
;
6334 /* clear out any free frames */
6335 iwl3945_clear_free_frames(priv
);
6338 static void iwl3945_down(struct iwl3945_priv
*priv
)
6340 mutex_lock(&priv
->mutex
);
6341 __iwl3945_down(priv
);
6342 mutex_unlock(&priv
->mutex
);
6344 iwl3945_cancel_deferred_work(priv
);
6347 #define MAX_HW_RESTARTS 5
6349 static int __iwl3945_up(struct iwl3945_priv
*priv
)
6351 DECLARE_MAC_BUF(mac
);
6354 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
)) {
6355 IWL_WARNING("Exit pending; will not bring the NIC up\n");
6359 if (test_bit(STATUS_RF_KILL_SW
, &priv
->status
)) {
6360 IWL_WARNING("Radio disabled by SW RF kill (module "
6365 if (!priv
->ucode_data_backup
.v_addr
|| !priv
->ucode_data
.v_addr
) {
6366 IWL_ERROR("ucode not available for device bringup\n");
6370 iwl3945_write32(priv
, CSR_INT
, 0xFFFFFFFF);
6372 rc
= iwl3945_hw_nic_init(priv
);
6374 IWL_ERROR("Unable to int nic\n");
6378 /* make sure rfkill handshake bits are cleared */
6379 iwl3945_write32(priv
, CSR_UCODE_DRV_GP1_CLR
, CSR_UCODE_SW_BIT_RFKILL
);
6380 iwl3945_write32(priv
, CSR_UCODE_DRV_GP1_CLR
,
6381 CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED
);
6383 /* clear (again), then enable host interrupts */
6384 iwl3945_write32(priv
, CSR_INT
, 0xFFFFFFFF);
6385 iwl3945_enable_interrupts(priv
);
6387 /* really make sure rfkill handshake bits are cleared */
6388 iwl3945_write32(priv
, CSR_UCODE_DRV_GP1_CLR
, CSR_UCODE_SW_BIT_RFKILL
);
6389 iwl3945_write32(priv
, CSR_UCODE_DRV_GP1_CLR
, CSR_UCODE_SW_BIT_RFKILL
);
6391 /* Copy original ucode data image from disk into backup cache.
6392 * This will be used to initialize the on-board processor's
6393 * data SRAM for a clean start when the runtime program first loads. */
6394 memcpy(priv
->ucode_data_backup
.v_addr
, priv
->ucode_data
.v_addr
,
6395 priv
->ucode_data
.len
);
6397 for (i
= 0; i
< MAX_HW_RESTARTS
; i
++) {
6399 iwl3945_clear_stations_table(priv
);
6401 /* load bootstrap state machine,
6402 * load bootstrap program into processor's memory,
6403 * prepare to load the "initialize" uCode */
6404 rc
= iwl3945_load_bsm(priv
);
6407 IWL_ERROR("Unable to set up bootstrap uCode: %d\n", rc
);
6411 /* start card; "initialize" will load runtime ucode */
6412 iwl3945_nic_start(priv
);
6414 /* MAC Address location in EEPROM is same for 3945/4965 */
6415 get_eeprom_mac(priv
, priv
->mac_addr
);
6416 IWL_DEBUG_INFO("MAC address: %s\n",
6417 print_mac(mac
, priv
->mac_addr
));
6419 SET_IEEE80211_PERM_ADDR(priv
->hw
, priv
->mac_addr
);
6421 IWL_DEBUG_INFO(DRV_NAME
" is coming up\n");
6426 set_bit(STATUS_EXIT_PENDING
, &priv
->status
);
6427 __iwl3945_down(priv
);
6429 /* tried to restart and config the device for as long as our
6430 * patience could withstand */
6431 IWL_ERROR("Unable to initialize device after %d attempts.\n", i
);
6436 /*****************************************************************************
6438 * Workqueue callbacks
6440 *****************************************************************************/
6442 static void iwl3945_bg_init_alive_start(struct work_struct
*data
)
6444 struct iwl3945_priv
*priv
=
6445 container_of(data
, struct iwl3945_priv
, init_alive_start
.work
);
6447 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6450 mutex_lock(&priv
->mutex
);
6451 iwl3945_init_alive_start(priv
);
6452 mutex_unlock(&priv
->mutex
);
6455 static void iwl3945_bg_alive_start(struct work_struct
*data
)
6457 struct iwl3945_priv
*priv
=
6458 container_of(data
, struct iwl3945_priv
, alive_start
.work
);
6460 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6463 mutex_lock(&priv
->mutex
);
6464 iwl3945_alive_start(priv
);
6465 mutex_unlock(&priv
->mutex
);
6468 static void iwl3945_bg_rf_kill(struct work_struct
*work
)
6470 struct iwl3945_priv
*priv
= container_of(work
, struct iwl3945_priv
, rf_kill
);
6472 wake_up_interruptible(&priv
->wait_command_queue
);
6474 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6477 mutex_lock(&priv
->mutex
);
6479 if (!iwl3945_is_rfkill(priv
)) {
6480 IWL_DEBUG(IWL_DL_INFO
| IWL_DL_RF_KILL
,
6481 "HW and/or SW RF Kill no longer active, restarting "
6483 if (!test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6484 queue_work(priv
->workqueue
, &priv
->restart
);
6487 if (!test_bit(STATUS_RF_KILL_HW
, &priv
->status
))
6488 IWL_DEBUG_RF_KILL("Can not turn radio back on - "
6489 "disabled by SW switch\n");
6491 IWL_WARNING("Radio Frequency Kill Switch is On:\n"
6492 "Kill switch must be turned off for "
6493 "wireless networking to work.\n");
6495 mutex_unlock(&priv
->mutex
);
6498 #define IWL_SCAN_CHECK_WATCHDOG (7 * HZ)
6500 static void iwl3945_bg_scan_check(struct work_struct
*data
)
6502 struct iwl3945_priv
*priv
=
6503 container_of(data
, struct iwl3945_priv
, scan_check
.work
);
6505 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6508 mutex_lock(&priv
->mutex
);
6509 if (test_bit(STATUS_SCANNING
, &priv
->status
) ||
6510 test_bit(STATUS_SCAN_ABORTING
, &priv
->status
)) {
6511 IWL_DEBUG(IWL_DL_INFO
| IWL_DL_SCAN
,
6512 "Scan completion watchdog resetting adapter (%dms)\n",
6513 jiffies_to_msecs(IWL_SCAN_CHECK_WATCHDOG
));
6515 if (!test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6516 iwl3945_send_scan_abort(priv
);
6518 mutex_unlock(&priv
->mutex
);
6521 static void iwl3945_bg_request_scan(struct work_struct
*data
)
6523 struct iwl3945_priv
*priv
=
6524 container_of(data
, struct iwl3945_priv
, request_scan
);
6525 struct iwl3945_host_cmd cmd
= {
6526 .id
= REPLY_SCAN_CMD
,
6527 .len
= sizeof(struct iwl3945_scan_cmd
),
6528 .meta
.flags
= CMD_SIZE_HUGE
,
6531 struct iwl3945_scan_cmd
*scan
;
6532 struct ieee80211_conf
*conf
= NULL
;
6536 conf
= ieee80211_get_hw_conf(priv
->hw
);
6538 mutex_lock(&priv
->mutex
);
6540 if (!iwl3945_is_ready(priv
)) {
6541 IWL_WARNING("request scan called when driver not ready.\n");
6545 /* Make sure the scan wasn't cancelled before this queued work
6546 * was given the chance to run... */
6547 if (!test_bit(STATUS_SCANNING
, &priv
->status
))
6550 /* This should never be called or scheduled if there is currently
6551 * a scan active in the hardware. */
6552 if (test_bit(STATUS_SCAN_HW
, &priv
->status
)) {
6553 IWL_DEBUG_INFO("Multiple concurrent scan requests in parallel. "
6554 "Ignoring second request.\n");
6559 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
)) {
6560 IWL_DEBUG_SCAN("Aborting scan due to device shutdown\n");
6564 if (test_bit(STATUS_SCAN_ABORTING
, &priv
->status
)) {
6565 IWL_DEBUG_HC("Scan request while abort pending. Queuing.\n");
6569 if (iwl3945_is_rfkill(priv
)) {
6570 IWL_DEBUG_HC("Aborting scan due to RF Kill activation\n");
6574 if (!test_bit(STATUS_READY
, &priv
->status
)) {
6575 IWL_DEBUG_HC("Scan request while uninitialized. Queuing.\n");
6579 if (!priv
->scan_bands
) {
6580 IWL_DEBUG_HC("Aborting scan due to no requested bands\n");
6585 priv
->scan
= kmalloc(sizeof(struct iwl3945_scan_cmd
) +
6586 IWL_MAX_SCAN_SIZE
, GFP_KERNEL
);
6593 memset(scan
, 0, sizeof(struct iwl3945_scan_cmd
) + IWL_MAX_SCAN_SIZE
);
6595 scan
->quiet_plcp_th
= IWL_PLCP_QUIET_THRESH
;
6596 scan
->quiet_time
= IWL_ACTIVE_QUIET_TIME
;
6598 if (iwl3945_is_associated(priv
)) {
6601 u32 suspend_time
= 100;
6602 u32 scan_suspend_time
= 100;
6603 unsigned long flags
;
6605 IWL_DEBUG_INFO("Scanning while associated...\n");
6607 spin_lock_irqsave(&priv
->lock
, flags
);
6608 interval
= priv
->beacon_int
;
6609 spin_unlock_irqrestore(&priv
->lock
, flags
);
6611 scan
->suspend_time
= 0;
6612 scan
->max_out_time
= cpu_to_le32(200 * 1024);
6614 interval
= suspend_time
;
6616 * suspend time format:
6617 * 0-19: beacon interval in usec (time before exec.)
6619 * 24-31: number of beacons (suspend between channels)
6622 extra
= (suspend_time
/ interval
) << 24;
6623 scan_suspend_time
= 0xFF0FFFFF &
6624 (extra
| ((suspend_time
% interval
) * 1024));
6626 scan
->suspend_time
= cpu_to_le32(scan_suspend_time
);
6627 IWL_DEBUG_SCAN("suspend_time 0x%X beacon interval %d\n",
6628 scan_suspend_time
, interval
);
6631 /* We should add the ability for user to lock to PASSIVE ONLY */
6632 if (priv
->one_direct_scan
) {
6634 ("Kicking off one direct scan for '%s'\n",
6635 iwl3945_escape_essid(priv
->direct_ssid
,
6636 priv
->direct_ssid_len
));
6637 scan
->direct_scan
[0].id
= WLAN_EID_SSID
;
6638 scan
->direct_scan
[0].len
= priv
->direct_ssid_len
;
6639 memcpy(scan
->direct_scan
[0].ssid
,
6640 priv
->direct_ssid
, priv
->direct_ssid_len
);
6642 } else if (!iwl3945_is_associated(priv
) && priv
->essid_len
) {
6643 scan
->direct_scan
[0].id
= WLAN_EID_SSID
;
6644 scan
->direct_scan
[0].len
= priv
->essid_len
;
6645 memcpy(scan
->direct_scan
[0].ssid
, priv
->essid
, priv
->essid_len
);
6650 /* We don't build a direct scan probe request; the uCode will do
6651 * that based on the direct_mask added to each channel entry */
6652 scan
->tx_cmd
.len
= cpu_to_le16(
6653 iwl3945_fill_probe_req(priv
, (struct ieee80211_mgmt
*)scan
->data
,
6654 IWL_MAX_SCAN_SIZE
- sizeof(scan
), 0));
6655 scan
->tx_cmd
.tx_flags
= TX_CMD_FLG_SEQ_CTL_MSK
;
6656 scan
->tx_cmd
.sta_id
= priv
->hw_setting
.bcast_sta_id
;
6657 scan
->tx_cmd
.stop_time
.life_time
= TX_CMD_LIFE_TIME_INFINITE
;
6659 /* flags + rate selection */
6661 switch (priv
->scan_bands
) {
6663 scan
->flags
= RXON_FLG_BAND_24G_MSK
| RXON_FLG_AUTO_DETECT_MSK
;
6664 scan
->tx_cmd
.rate
= IWL_RATE_1M_PLCP
;
6665 scan
->good_CRC_th
= 0;
6666 phymode
= MODE_IEEE80211G
;
6670 scan
->tx_cmd
.rate
= IWL_RATE_6M_PLCP
;
6671 scan
->good_CRC_th
= IWL_GOOD_CRC_TH
;
6672 phymode
= MODE_IEEE80211A
;
6676 IWL_WARNING("Invalid scan band count\n");
6680 /* select Rx antennas */
6681 scan
->flags
|= iwl3945_get_antenna_flags(priv
);
6683 if (priv
->iw_mode
== IEEE80211_IF_TYPE_MNTR
)
6684 scan
->filter_flags
= RXON_FILTER_PROMISC_MSK
;
6688 ("Initiating direct scan for %s.\n",
6689 iwl3945_escape_essid(priv
->essid
, priv
->essid_len
));
6691 IWL_DEBUG_SCAN("Initiating indirect scan.\n");
6693 scan
->channel_count
=
6694 iwl3945_get_channels_for_scan(
6695 priv
, phymode
, 1, /* active */
6697 (void *)&scan
->data
[le16_to_cpu(scan
->tx_cmd
.len
)]);
6699 cmd
.len
+= le16_to_cpu(scan
->tx_cmd
.len
) +
6700 scan
->channel_count
* sizeof(struct iwl3945_scan_channel
);
6702 scan
->len
= cpu_to_le16(cmd
.len
);
6704 set_bit(STATUS_SCAN_HW
, &priv
->status
);
6705 rc
= iwl3945_send_cmd_sync(priv
, &cmd
);
6709 queue_delayed_work(priv
->workqueue
, &priv
->scan_check
,
6710 IWL_SCAN_CHECK_WATCHDOG
);
6712 mutex_unlock(&priv
->mutex
);
6716 /* inform mac80211 scan aborted */
6717 queue_work(priv
->workqueue
, &priv
->scan_completed
);
6718 mutex_unlock(&priv
->mutex
);
6721 static void iwl3945_bg_up(struct work_struct
*data
)
6723 struct iwl3945_priv
*priv
= container_of(data
, struct iwl3945_priv
, up
);
6725 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6728 mutex_lock(&priv
->mutex
);
6730 mutex_unlock(&priv
->mutex
);
6733 static void iwl3945_bg_restart(struct work_struct
*data
)
6735 struct iwl3945_priv
*priv
= container_of(data
, struct iwl3945_priv
, restart
);
6737 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6741 queue_work(priv
->workqueue
, &priv
->up
);
6744 static void iwl3945_bg_rx_replenish(struct work_struct
*data
)
6746 struct iwl3945_priv
*priv
=
6747 container_of(data
, struct iwl3945_priv
, rx_replenish
);
6749 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6752 mutex_lock(&priv
->mutex
);
6753 iwl3945_rx_replenish(priv
);
6754 mutex_unlock(&priv
->mutex
);
6757 #define IWL_DELAY_NEXT_SCAN (HZ*2)
6759 static void iwl3945_bg_post_associate(struct work_struct
*data
)
6761 struct iwl3945_priv
*priv
= container_of(data
, struct iwl3945_priv
,
6762 post_associate
.work
);
6765 struct ieee80211_conf
*conf
= NULL
;
6766 DECLARE_MAC_BUF(mac
);
6768 if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) {
6769 IWL_ERROR("%s Should not be called in AP mode\n", __FUNCTION__
);
6774 IWL_DEBUG_ASSOC("Associated as %d to: %s\n",
6776 print_mac(mac
, priv
->active_rxon
.bssid_addr
));
6778 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6781 mutex_lock(&priv
->mutex
);
6783 if (!priv
->interface_id
|| !priv
->is_open
) {
6784 mutex_unlock(&priv
->mutex
);
6787 iwl3945_scan_cancel_timeout(priv
, 200);
6789 conf
= ieee80211_get_hw_conf(priv
->hw
);
6791 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
6792 iwl3945_commit_rxon(priv
);
6794 memset(&priv
->rxon_timing
, 0, sizeof(struct iwl3945_rxon_time_cmd
));
6795 iwl3945_setup_rxon_timing(priv
);
6796 rc
= iwl3945_send_cmd_pdu(priv
, REPLY_RXON_TIMING
,
6797 sizeof(priv
->rxon_timing
), &priv
->rxon_timing
);
6799 IWL_WARNING("REPLY_RXON_TIMING failed - "
6800 "Attempting to continue.\n");
6802 priv
->staging_rxon
.filter_flags
|= RXON_FILTER_ASSOC_MSK
;
6804 priv
->staging_rxon
.assoc_id
= cpu_to_le16(priv
->assoc_id
);
6806 IWL_DEBUG_ASSOC("assoc id %d beacon interval %d\n",
6807 priv
->assoc_id
, priv
->beacon_int
);
6809 if (priv
->assoc_capability
& WLAN_CAPABILITY_SHORT_PREAMBLE
)
6810 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_PREAMBLE_MSK
;
6812 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_PREAMBLE_MSK
;
6814 if (priv
->staging_rxon
.flags
& RXON_FLG_BAND_24G_MSK
) {
6815 if (priv
->assoc_capability
& WLAN_CAPABILITY_SHORT_SLOT_TIME
)
6816 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_SLOT_MSK
;
6818 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_SLOT_MSK
;
6820 if (priv
->iw_mode
== IEEE80211_IF_TYPE_IBSS
)
6821 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_SLOT_MSK
;
6825 iwl3945_commit_rxon(priv
);
6827 switch (priv
->iw_mode
) {
6828 case IEEE80211_IF_TYPE_STA
:
6829 iwl3945_rate_scale_init(priv
->hw
, IWL_AP_ID
);
6832 case IEEE80211_IF_TYPE_IBSS
:
6834 /* clear out the station table */
6835 iwl3945_clear_stations_table(priv
);
6837 iwl3945_add_station(priv
, iwl3945_broadcast_addr
, 0, 0);
6838 iwl3945_add_station(priv
, priv
->bssid
, 0, 0);
6839 iwl3945_sync_sta(priv
, IWL_STA_ID
,
6840 (priv
->phymode
== MODE_IEEE80211A
)?
6841 IWL_RATE_6M_PLCP
: IWL_RATE_1M_PLCP
,
6843 iwl3945_rate_scale_init(priv
->hw
, IWL_STA_ID
);
6844 iwl3945_send_beacon_cmd(priv
);
6849 IWL_ERROR("%s Should not be called in %d mode\n",
6850 __FUNCTION__
, priv
->iw_mode
);
6854 iwl3945_sequence_reset(priv
);
6856 #ifdef CONFIG_IWL3945_QOS
6857 iwl3945_activate_qos(priv
, 0);
6858 #endif /* CONFIG_IWL3945_QOS */
6859 /* we have just associated, don't start scan too early */
6860 priv
->next_scan_jiffies
= jiffies
+ IWL_DELAY_NEXT_SCAN
;
6861 mutex_unlock(&priv
->mutex
);
6864 static void iwl3945_bg_abort_scan(struct work_struct
*work
)
6866 struct iwl3945_priv
*priv
= container_of(work
, struct iwl3945_priv
, abort_scan
);
6868 if (!iwl3945_is_ready(priv
))
6871 mutex_lock(&priv
->mutex
);
6873 set_bit(STATUS_SCAN_ABORTING
, &priv
->status
);
6874 iwl3945_send_scan_abort(priv
);
6876 mutex_unlock(&priv
->mutex
);
6879 static int iwl3945_mac_config(struct ieee80211_hw
*hw
, struct ieee80211_conf
*conf
);
6881 static void iwl3945_bg_scan_completed(struct work_struct
*work
)
6883 struct iwl3945_priv
*priv
=
6884 container_of(work
, struct iwl3945_priv
, scan_completed
);
6886 IWL_DEBUG(IWL_DL_INFO
| IWL_DL_SCAN
, "SCAN complete scan\n");
6888 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6891 if (test_bit(STATUS_CONF_PENDING
, &priv
->status
))
6892 iwl3945_mac_config(priv
->hw
, ieee80211_get_hw_conf(priv
->hw
));
6894 ieee80211_scan_completed(priv
->hw
);
6896 /* Since setting the TXPOWER may have been deferred while
6897 * performing the scan, fire one off */
6898 mutex_lock(&priv
->mutex
);
6899 iwl3945_hw_reg_send_txpower(priv
);
6900 mutex_unlock(&priv
->mutex
);
6903 /*****************************************************************************
6905 * mac80211 entry point functions
6907 *****************************************************************************/
6909 static int iwl3945_mac_start(struct ieee80211_hw
*hw
)
6911 struct iwl3945_priv
*priv
= hw
->priv
;
6913 IWL_DEBUG_MAC80211("enter\n");
6915 /* we should be verifying the device is ready to be opened */
6916 mutex_lock(&priv
->mutex
);
6920 if (!iwl3945_is_rfkill(priv
))
6921 ieee80211_start_queues(priv
->hw
);
6923 mutex_unlock(&priv
->mutex
);
6924 IWL_DEBUG_MAC80211("leave\n");
6928 static void iwl3945_mac_stop(struct ieee80211_hw
*hw
)
6930 struct iwl3945_priv
*priv
= hw
->priv
;
6932 IWL_DEBUG_MAC80211("enter\n");
6935 mutex_lock(&priv
->mutex
);
6936 /* stop mac, cancel any scan request and clear
6937 * RXON_FILTER_ASSOC_MSK BIT
6940 if (!iwl3945_is_ready_rf(priv
)) {
6941 IWL_DEBUG_MAC80211("leave - RF not ready\n");
6942 mutex_unlock(&priv
->mutex
);
6946 iwl3945_scan_cancel_timeout(priv
, 100);
6947 cancel_delayed_work(&priv
->post_associate
);
6948 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
6949 iwl3945_commit_rxon(priv
);
6950 mutex_unlock(&priv
->mutex
);
6952 IWL_DEBUG_MAC80211("leave\n");
6955 static int iwl3945_mac_tx(struct ieee80211_hw
*hw
, struct sk_buff
*skb
,
6956 struct ieee80211_tx_control
*ctl
)
6958 struct iwl3945_priv
*priv
= hw
->priv
;
6960 IWL_DEBUG_MAC80211("enter\n");
6962 if (priv
->iw_mode
== IEEE80211_IF_TYPE_MNTR
) {
6963 IWL_DEBUG_MAC80211("leave - monitor\n");
6967 IWL_DEBUG_TX("dev->xmit(%d bytes) at rate 0x%02x\n", skb
->len
,
6970 if (iwl3945_tx_skb(priv
, skb
, ctl
))
6971 dev_kfree_skb_any(skb
);
6973 IWL_DEBUG_MAC80211("leave\n");
6977 static int iwl3945_mac_add_interface(struct ieee80211_hw
*hw
,
6978 struct ieee80211_if_init_conf
*conf
)
6980 struct iwl3945_priv
*priv
= hw
->priv
;
6981 unsigned long flags
;
6982 DECLARE_MAC_BUF(mac
);
6984 IWL_DEBUG_MAC80211("enter: id %d, type %d\n", conf
->if_id
, conf
->type
);
6986 if (priv
->interface_id
) {
6987 IWL_DEBUG_MAC80211("leave - interface_id != 0\n");
6991 spin_lock_irqsave(&priv
->lock
, flags
);
6992 priv
->interface_id
= conf
->if_id
;
6994 spin_unlock_irqrestore(&priv
->lock
, flags
);
6996 mutex_lock(&priv
->mutex
);
6998 if (conf
->mac_addr
) {
6999 IWL_DEBUG_MAC80211("Set: %s\n", print_mac(mac
, conf
->mac_addr
));
7000 memcpy(priv
->mac_addr
, conf
->mac_addr
, ETH_ALEN
);
7003 iwl3945_set_mode(priv
, conf
->type
);
7005 IWL_DEBUG_MAC80211("leave\n");
7006 mutex_unlock(&priv
->mutex
);
7012 * iwl3945_mac_config - mac80211 config callback
7014 * We ignore conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME since it seems to
7015 * be set inappropriately and the driver currently sets the hardware up to
7016 * use it whenever needed.
7018 static int iwl3945_mac_config(struct ieee80211_hw
*hw
, struct ieee80211_conf
*conf
)
7020 struct iwl3945_priv
*priv
= hw
->priv
;
7021 const struct iwl3945_channel_info
*ch_info
;
7022 unsigned long flags
;
7025 mutex_lock(&priv
->mutex
);
7026 IWL_DEBUG_MAC80211("enter to channel %d\n", conf
->channel
);
7028 priv
->add_radiotap
= !!(conf
->flags
& IEEE80211_CONF_RADIOTAP
);
7030 if (!iwl3945_is_ready(priv
)) {
7031 IWL_DEBUG_MAC80211("leave - not ready\n");
7036 if (unlikely(!iwl3945_param_disable_hw_scan
&&
7037 test_bit(STATUS_SCANNING
, &priv
->status
))) {
7038 IWL_DEBUG_MAC80211("leave - scanning\n");
7039 set_bit(STATUS_CONF_PENDING
, &priv
->status
);
7040 mutex_unlock(&priv
->mutex
);
7044 spin_lock_irqsave(&priv
->lock
, flags
);
7046 ch_info
= iwl3945_get_channel_info(priv
, conf
->phymode
, conf
->channel
);
7047 if (!is_channel_valid(ch_info
)) {
7048 IWL_DEBUG_SCAN("Channel %d [%d] is INVALID for this SKU.\n",
7049 conf
->channel
, conf
->phymode
);
7050 IWL_DEBUG_MAC80211("leave - invalid channel\n");
7051 spin_unlock_irqrestore(&priv
->lock
, flags
);
7056 iwl3945_set_rxon_channel(priv
, conf
->phymode
, conf
->channel
);
7058 iwl3945_set_flags_for_phymode(priv
, conf
->phymode
);
7060 /* The list of supported rates and rate mask can be different
7061 * for each phymode; since the phymode may have changed, reset
7062 * the rate mask to what mac80211 lists */
7063 iwl3945_set_rate(priv
);
7065 spin_unlock_irqrestore(&priv
->lock
, flags
);
7067 #ifdef IEEE80211_CONF_CHANNEL_SWITCH
7068 if (conf
->flags
& IEEE80211_CONF_CHANNEL_SWITCH
) {
7069 iwl3945_hw_channel_switch(priv
, conf
->channel
);
7074 iwl3945_radio_kill_sw(priv
, !conf
->radio_enabled
);
7076 if (!conf
->radio_enabled
) {
7077 IWL_DEBUG_MAC80211("leave - radio disabled\n");
7081 if (iwl3945_is_rfkill(priv
)) {
7082 IWL_DEBUG_MAC80211("leave - RF kill\n");
7087 iwl3945_set_rate(priv
);
7089 if (memcmp(&priv
->active_rxon
,
7090 &priv
->staging_rxon
, sizeof(priv
->staging_rxon
)))
7091 iwl3945_commit_rxon(priv
);
7093 IWL_DEBUG_INFO("No re-sending same RXON configuration.\n");
7095 IWL_DEBUG_MAC80211("leave\n");
7098 clear_bit(STATUS_CONF_PENDING
, &priv
->status
);
7099 mutex_unlock(&priv
->mutex
);
7103 static void iwl3945_config_ap(struct iwl3945_priv
*priv
)
7107 if (priv
->status
& STATUS_EXIT_PENDING
)
7110 /* The following should be done only at AP bring up */
7111 if ((priv
->active_rxon
.filter_flags
& RXON_FILTER_ASSOC_MSK
) == 0) {
7113 /* RXON - unassoc (to set timing command) */
7114 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
7115 iwl3945_commit_rxon(priv
);
7118 memset(&priv
->rxon_timing
, 0, sizeof(struct iwl3945_rxon_time_cmd
));
7119 iwl3945_setup_rxon_timing(priv
);
7120 rc
= iwl3945_send_cmd_pdu(priv
, REPLY_RXON_TIMING
,
7121 sizeof(priv
->rxon_timing
), &priv
->rxon_timing
);
7123 IWL_WARNING("REPLY_RXON_TIMING failed - "
7124 "Attempting to continue.\n");
7126 /* FIXME: what should be the assoc_id for AP? */
7127 priv
->staging_rxon
.assoc_id
= cpu_to_le16(priv
->assoc_id
);
7128 if (priv
->assoc_capability
& WLAN_CAPABILITY_SHORT_PREAMBLE
)
7129 priv
->staging_rxon
.flags
|=
7130 RXON_FLG_SHORT_PREAMBLE_MSK
;
7132 priv
->staging_rxon
.flags
&=
7133 ~RXON_FLG_SHORT_PREAMBLE_MSK
;
7135 if (priv
->staging_rxon
.flags
& RXON_FLG_BAND_24G_MSK
) {
7136 if (priv
->assoc_capability
&
7137 WLAN_CAPABILITY_SHORT_SLOT_TIME
)
7138 priv
->staging_rxon
.flags
|=
7139 RXON_FLG_SHORT_SLOT_MSK
;
7141 priv
->staging_rxon
.flags
&=
7142 ~RXON_FLG_SHORT_SLOT_MSK
;
7144 if (priv
->iw_mode
== IEEE80211_IF_TYPE_IBSS
)
7145 priv
->staging_rxon
.flags
&=
7146 ~RXON_FLG_SHORT_SLOT_MSK
;
7148 /* restore RXON assoc */
7149 priv
->staging_rxon
.filter_flags
|= RXON_FILTER_ASSOC_MSK
;
7150 iwl3945_commit_rxon(priv
);
7151 iwl3945_add_station(priv
, iwl3945_broadcast_addr
, 0, 0);
7153 iwl3945_send_beacon_cmd(priv
);
7155 /* FIXME - we need to add code here to detect a totally new
7156 * configuration, reset the AP, unassoc, rxon timing, assoc,
7157 * clear sta table, add BCAST sta... */
7160 static int iwl3945_mac_config_interface(struct ieee80211_hw
*hw
, int if_id
,
7161 struct ieee80211_if_conf
*conf
)
7163 struct iwl3945_priv
*priv
= hw
->priv
;
7164 DECLARE_MAC_BUF(mac
);
7165 unsigned long flags
;
7171 /* XXX: this MUST use conf->mac_addr */
7173 if ((priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) &&
7174 (!conf
->beacon
|| !conf
->ssid_len
)) {
7176 ("Leaving in AP mode because HostAPD is not ready.\n");
7180 mutex_lock(&priv
->mutex
);
7182 IWL_DEBUG_MAC80211("enter: interface id %d\n", if_id
);
7184 IWL_DEBUG_MAC80211("bssid: %s\n",
7185 print_mac(mac
, conf
->bssid
));
7188 * very dubious code was here; the probe filtering flag is never set:
7190 if (unlikely(test_bit(STATUS_SCANNING, &priv->status)) &&
7191 !(priv->hw->flags & IEEE80211_HW_NO_PROBE_FILTERING)) {
7193 if (unlikely(test_bit(STATUS_SCANNING
, &priv
->status
))) {
7194 IWL_DEBUG_MAC80211("leave - scanning\n");
7195 mutex_unlock(&priv
->mutex
);
7199 if (priv
->interface_id
!= if_id
) {
7200 IWL_DEBUG_MAC80211("leave - interface_id != if_id\n");
7201 mutex_unlock(&priv
->mutex
);
7205 if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) {
7207 conf
->bssid
= priv
->mac_addr
;
7208 memcpy(priv
->bssid
, priv
->mac_addr
, ETH_ALEN
);
7209 IWL_DEBUG_MAC80211("bssid was set to: %s\n",
7210 print_mac(mac
, conf
->bssid
));
7212 if (priv
->ibss_beacon
)
7213 dev_kfree_skb(priv
->ibss_beacon
);
7215 priv
->ibss_beacon
= conf
->beacon
;
7218 if (iwl3945_is_rfkill(priv
))
7221 if (conf
->bssid
&& !is_zero_ether_addr(conf
->bssid
) &&
7222 !is_multicast_ether_addr(conf
->bssid
)) {
7223 /* If there is currently a HW scan going on in the background
7224 * then we need to cancel it else the RXON below will fail. */
7225 if (iwl3945_scan_cancel_timeout(priv
, 100)) {
7226 IWL_WARNING("Aborted scan still in progress "
7228 IWL_DEBUG_MAC80211("leaving - scan abort failed.\n");
7229 mutex_unlock(&priv
->mutex
);
7232 memcpy(priv
->staging_rxon
.bssid_addr
, conf
->bssid
, ETH_ALEN
);
7234 /* TODO: Audit driver for usage of these members and see
7235 * if mac80211 deprecates them (priv->bssid looks like it
7236 * shouldn't be there, but I haven't scanned the IBSS code
7237 * to verify) - jpk */
7238 memcpy(priv
->bssid
, conf
->bssid
, ETH_ALEN
);
7240 if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
)
7241 iwl3945_config_ap(priv
);
7243 rc
= iwl3945_commit_rxon(priv
);
7244 if ((priv
->iw_mode
== IEEE80211_IF_TYPE_STA
) && rc
)
7245 iwl3945_add_station(priv
,
7246 priv
->active_rxon
.bssid_addr
, 1, 0);
7250 iwl3945_scan_cancel_timeout(priv
, 100);
7251 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
7252 iwl3945_commit_rxon(priv
);
7256 spin_lock_irqsave(&priv
->lock
, flags
);
7257 if (!conf
->ssid_len
)
7258 memset(priv
->essid
, 0, IW_ESSID_MAX_SIZE
);
7260 memcpy(priv
->essid
, conf
->ssid
, conf
->ssid_len
);
7262 priv
->essid_len
= conf
->ssid_len
;
7263 spin_unlock_irqrestore(&priv
->lock
, flags
);
7265 IWL_DEBUG_MAC80211("leave\n");
7266 mutex_unlock(&priv
->mutex
);
7271 static void iwl3945_configure_filter(struct ieee80211_hw
*hw
,
7272 unsigned int changed_flags
,
7273 unsigned int *total_flags
,
7274 int mc_count
, struct dev_addr_list
*mc_list
)
7278 * see also iwl3945_connection_init_rx_config
7283 static void iwl3945_mac_remove_interface(struct ieee80211_hw
*hw
,
7284 struct ieee80211_if_init_conf
*conf
)
7286 struct iwl3945_priv
*priv
= hw
->priv
;
7288 IWL_DEBUG_MAC80211("enter\n");
7290 mutex_lock(&priv
->mutex
);
7292 if (iwl3945_is_ready_rf(priv
)) {
7293 iwl3945_scan_cancel_timeout(priv
, 100);
7294 cancel_delayed_work(&priv
->post_associate
);
7295 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
7296 iwl3945_commit_rxon(priv
);
7298 if (priv
->interface_id
== conf
->if_id
) {
7299 priv
->interface_id
= 0;
7300 memset(priv
->bssid
, 0, ETH_ALEN
);
7301 memset(priv
->essid
, 0, IW_ESSID_MAX_SIZE
);
7302 priv
->essid_len
= 0;
7304 mutex_unlock(&priv
->mutex
);
7306 IWL_DEBUG_MAC80211("leave\n");
7310 static int iwl3945_mac_hw_scan(struct ieee80211_hw
*hw
, u8
*ssid
, size_t len
)
7313 unsigned long flags
;
7314 struct iwl3945_priv
*priv
= hw
->priv
;
7316 IWL_DEBUG_MAC80211("enter\n");
7318 mutex_lock(&priv
->mutex
);
7319 spin_lock_irqsave(&priv
->lock
, flags
);
7321 if (!iwl3945_is_ready_rf(priv
)) {
7323 IWL_DEBUG_MAC80211("leave - not ready or exit pending\n");
7327 if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) { /* APs don't scan */
7329 IWL_ERROR("ERROR: APs don't scan\n");
7333 /* we don't schedule scan within next_scan_jiffies period */
7334 if (priv
->next_scan_jiffies
&&
7335 time_after(priv
->next_scan_jiffies
, jiffies
)) {
7339 /* if we just finished scan ask for delay */
7340 if (priv
->last_scan_jiffies
&& time_after(priv
->last_scan_jiffies
+
7341 IWL_DELAY_NEXT_SCAN
, jiffies
)) {
7346 IWL_DEBUG_SCAN("direct scan for %s [%d]\n ",
7347 iwl3945_escape_essid(ssid
, len
), (int)len
);
7349 priv
->one_direct_scan
= 1;
7350 priv
->direct_ssid_len
= (u8
)
7351 min((u8
) len
, (u8
) IW_ESSID_MAX_SIZE
);
7352 memcpy(priv
->direct_ssid
, ssid
, priv
->direct_ssid_len
);
7354 priv
->one_direct_scan
= 0;
7356 rc
= iwl3945_scan_initiate(priv
);
7358 IWL_DEBUG_MAC80211("leave\n");
7361 spin_unlock_irqrestore(&priv
->lock
, flags
);
7362 mutex_unlock(&priv
->mutex
);
7367 static int iwl3945_mac_set_key(struct ieee80211_hw
*hw
, enum set_key_cmd cmd
,
7368 const u8
*local_addr
, const u8
*addr
,
7369 struct ieee80211_key_conf
*key
)
7371 struct iwl3945_priv
*priv
= hw
->priv
;
7375 IWL_DEBUG_MAC80211("enter\n");
7377 if (!iwl3945_param_hwcrypto
) {
7378 IWL_DEBUG_MAC80211("leave - hwcrypto disabled\n");
7382 if (is_zero_ether_addr(addr
))
7383 /* only support pairwise keys */
7386 sta_id
= iwl3945_hw_find_station(priv
, addr
);
7387 if (sta_id
== IWL_INVALID_STATION
) {
7388 DECLARE_MAC_BUF(mac
);
7390 IWL_DEBUG_MAC80211("leave - %s not in station map.\n",
7391 print_mac(mac
, addr
));
7395 mutex_lock(&priv
->mutex
);
7397 iwl3945_scan_cancel_timeout(priv
, 100);
7401 rc
= iwl3945_update_sta_key_info(priv
, key
, sta_id
);
7403 iwl3945_set_rxon_hwcrypto(priv
, 1);
7404 iwl3945_commit_rxon(priv
);
7405 key
->hw_key_idx
= sta_id
;
7406 IWL_DEBUG_MAC80211("set_key success, using hwcrypto\n");
7407 key
->flags
|= IEEE80211_KEY_FLAG_GENERATE_IV
;
7411 rc
= iwl3945_clear_sta_key_info(priv
, sta_id
);
7413 iwl3945_set_rxon_hwcrypto(priv
, 0);
7414 iwl3945_commit_rxon(priv
);
7415 IWL_DEBUG_MAC80211("disable hwcrypto key\n");
7422 IWL_DEBUG_MAC80211("leave\n");
7423 mutex_unlock(&priv
->mutex
);
7428 static int iwl3945_mac_conf_tx(struct ieee80211_hw
*hw
, int queue
,
7429 const struct ieee80211_tx_queue_params
*params
)
7431 struct iwl3945_priv
*priv
= hw
->priv
;
7432 #ifdef CONFIG_IWL3945_QOS
7433 unsigned long flags
;
7435 #endif /* CONFIG_IWL3945_QOS */
7437 IWL_DEBUG_MAC80211("enter\n");
7439 if (!iwl3945_is_ready_rf(priv
)) {
7440 IWL_DEBUG_MAC80211("leave - RF not ready\n");
7444 if (queue
>= AC_NUM
) {
7445 IWL_DEBUG_MAC80211("leave - queue >= AC_NUM %d\n", queue
);
7449 #ifdef CONFIG_IWL3945_QOS
7450 if (!priv
->qos_data
.qos_enable
) {
7451 priv
->qos_data
.qos_active
= 0;
7452 IWL_DEBUG_MAC80211("leave - qos not enabled\n");
7455 q
= AC_NUM
- 1 - queue
;
7457 spin_lock_irqsave(&priv
->lock
, flags
);
7459 priv
->qos_data
.def_qos_parm
.ac
[q
].cw_min
= cpu_to_le16(params
->cw_min
);
7460 priv
->qos_data
.def_qos_parm
.ac
[q
].cw_max
= cpu_to_le16(params
->cw_max
);
7461 priv
->qos_data
.def_qos_parm
.ac
[q
].aifsn
= params
->aifs
;
7462 priv
->qos_data
.def_qos_parm
.ac
[q
].edca_txop
=
7463 cpu_to_le16((params
->burst_time
* 100));
7465 priv
->qos_data
.def_qos_parm
.ac
[q
].reserved1
= 0;
7466 priv
->qos_data
.qos_active
= 1;
7468 spin_unlock_irqrestore(&priv
->lock
, flags
);
7470 mutex_lock(&priv
->mutex
);
7471 if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
)
7472 iwl3945_activate_qos(priv
, 1);
7473 else if (priv
->assoc_id
&& iwl3945_is_associated(priv
))
7474 iwl3945_activate_qos(priv
, 0);
7476 mutex_unlock(&priv
->mutex
);
7478 #endif /*CONFIG_IWL3945_QOS */
7480 IWL_DEBUG_MAC80211("leave\n");
7484 static int iwl3945_mac_get_tx_stats(struct ieee80211_hw
*hw
,
7485 struct ieee80211_tx_queue_stats
*stats
)
7487 struct iwl3945_priv
*priv
= hw
->priv
;
7489 struct iwl3945_tx_queue
*txq
;
7490 struct iwl3945_queue
*q
;
7491 unsigned long flags
;
7493 IWL_DEBUG_MAC80211("enter\n");
7495 if (!iwl3945_is_ready_rf(priv
)) {
7496 IWL_DEBUG_MAC80211("leave - RF not ready\n");
7500 spin_lock_irqsave(&priv
->lock
, flags
);
7502 for (i
= 0; i
< AC_NUM
; i
++) {
7503 txq
= &priv
->txq
[i
];
7505 avail
= iwl3945_queue_space(q
);
7507 stats
->data
[i
].len
= q
->n_window
- avail
;
7508 stats
->data
[i
].limit
= q
->n_window
- q
->high_mark
;
7509 stats
->data
[i
].count
= q
->n_window
;
7512 spin_unlock_irqrestore(&priv
->lock
, flags
);
7514 IWL_DEBUG_MAC80211("leave\n");
7519 static int iwl3945_mac_get_stats(struct ieee80211_hw
*hw
,
7520 struct ieee80211_low_level_stats
*stats
)
7522 IWL_DEBUG_MAC80211("enter\n");
7523 IWL_DEBUG_MAC80211("leave\n");
7528 static u64
iwl3945_mac_get_tsf(struct ieee80211_hw
*hw
)
7530 IWL_DEBUG_MAC80211("enter\n");
7531 IWL_DEBUG_MAC80211("leave\n");
7536 static void iwl3945_mac_reset_tsf(struct ieee80211_hw
*hw
)
7538 struct iwl3945_priv
*priv
= hw
->priv
;
7539 unsigned long flags
;
7541 mutex_lock(&priv
->mutex
);
7542 IWL_DEBUG_MAC80211("enter\n");
7544 #ifdef CONFIG_IWL3945_QOS
7545 iwl3945_reset_qos(priv
);
7547 cancel_delayed_work(&priv
->post_associate
);
7549 spin_lock_irqsave(&priv
->lock
, flags
);
7551 priv
->assoc_capability
= 0;
7552 priv
->call_post_assoc_from_beacon
= 0;
7554 /* new association get rid of ibss beacon skb */
7555 if (priv
->ibss_beacon
)
7556 dev_kfree_skb(priv
->ibss_beacon
);
7558 priv
->ibss_beacon
= NULL
;
7560 priv
->beacon_int
= priv
->hw
->conf
.beacon_int
;
7561 priv
->timestamp1
= 0;
7562 priv
->timestamp0
= 0;
7563 if ((priv
->iw_mode
== IEEE80211_IF_TYPE_STA
))
7564 priv
->beacon_int
= 0;
7566 spin_unlock_irqrestore(&priv
->lock
, flags
);
7568 if (!iwl3945_is_ready_rf(priv
)) {
7569 IWL_DEBUG_MAC80211("leave - not ready\n");
7570 mutex_unlock(&priv
->mutex
);
7574 /* we are restarting association process
7575 * clear RXON_FILTER_ASSOC_MSK bit
7577 if (priv
->iw_mode
!= IEEE80211_IF_TYPE_AP
) {
7578 iwl3945_scan_cancel_timeout(priv
, 100);
7579 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
7580 iwl3945_commit_rxon(priv
);
7583 /* Per mac80211.h: This is only used in IBSS mode... */
7584 if (priv
->iw_mode
!= IEEE80211_IF_TYPE_IBSS
) {
7586 IWL_DEBUG_MAC80211("leave - not in IBSS\n");
7587 mutex_unlock(&priv
->mutex
);
7591 priv
->only_active_channel
= 0;
7593 iwl3945_set_rate(priv
);
7595 mutex_unlock(&priv
->mutex
);
7597 IWL_DEBUG_MAC80211("leave\n");
7601 static int iwl3945_mac_beacon_update(struct ieee80211_hw
*hw
, struct sk_buff
*skb
,
7602 struct ieee80211_tx_control
*control
)
7604 struct iwl3945_priv
*priv
= hw
->priv
;
7605 unsigned long flags
;
7607 mutex_lock(&priv
->mutex
);
7608 IWL_DEBUG_MAC80211("enter\n");
7610 if (!iwl3945_is_ready_rf(priv
)) {
7611 IWL_DEBUG_MAC80211("leave - RF not ready\n");
7612 mutex_unlock(&priv
->mutex
);
7616 if (priv
->iw_mode
!= IEEE80211_IF_TYPE_IBSS
) {
7617 IWL_DEBUG_MAC80211("leave - not IBSS\n");
7618 mutex_unlock(&priv
->mutex
);
7622 spin_lock_irqsave(&priv
->lock
, flags
);
7624 if (priv
->ibss_beacon
)
7625 dev_kfree_skb(priv
->ibss_beacon
);
7627 priv
->ibss_beacon
= skb
;
7631 IWL_DEBUG_MAC80211("leave\n");
7632 spin_unlock_irqrestore(&priv
->lock
, flags
);
7634 #ifdef CONFIG_IWL3945_QOS
7635 iwl3945_reset_qos(priv
);
7638 queue_work(priv
->workqueue
, &priv
->post_associate
.work
);
7640 mutex_unlock(&priv
->mutex
);
7645 /*****************************************************************************
7649 *****************************************************************************/
7651 #ifdef CONFIG_IWL3945_DEBUG
7654 * The following adds a new attribute to the sysfs representation
7655 * of this device driver (i.e. a new file in /sys/bus/pci/drivers/iwl/)
7656 * used for controlling the debug level.
7658 * See the level definitions in iwl for details.
7661 static ssize_t
show_debug_level(struct device_driver
*d
, char *buf
)
7663 return sprintf(buf
, "0x%08X\n", iwl3945_debug_level
);
7665 static ssize_t
store_debug_level(struct device_driver
*d
,
7666 const char *buf
, size_t count
)
7668 char *p
= (char *)buf
;
7671 val
= simple_strtoul(p
, &p
, 0);
7673 printk(KERN_INFO DRV_NAME
7674 ": %s is not in hex or decimal form.\n", buf
);
7676 iwl3945_debug_level
= val
;
7678 return strnlen(buf
, count
);
7681 static DRIVER_ATTR(debug_level
, S_IWUSR
| S_IRUGO
,
7682 show_debug_level
, store_debug_level
);
7684 #endif /* CONFIG_IWL3945_DEBUG */
7686 static ssize_t
show_rf_kill(struct device
*d
,
7687 struct device_attribute
*attr
, char *buf
)
7690 * 0 - RF kill not enabled
7691 * 1 - SW based RF kill active (sysfs)
7692 * 2 - HW based RF kill active
7693 * 3 - Both HW and SW based RF kill active
7695 struct iwl3945_priv
*priv
= (struct iwl3945_priv
*)d
->driver_data
;
7696 int val
= (test_bit(STATUS_RF_KILL_SW
, &priv
->status
) ? 0x1 : 0x0) |
7697 (test_bit(STATUS_RF_KILL_HW
, &priv
->status
) ? 0x2 : 0x0);
7699 return sprintf(buf
, "%i\n", val
);
7702 static ssize_t
store_rf_kill(struct device
*d
,
7703 struct device_attribute
*attr
,
7704 const char *buf
, size_t count
)
7706 struct iwl3945_priv
*priv
= (struct iwl3945_priv
*)d
->driver_data
;
7708 mutex_lock(&priv
->mutex
);
7709 iwl3945_radio_kill_sw(priv
, buf
[0] == '1');
7710 mutex_unlock(&priv
->mutex
);
7715 static DEVICE_ATTR(rf_kill
, S_IWUSR
| S_IRUGO
, show_rf_kill
, store_rf_kill
);
7717 static ssize_t
show_temperature(struct device
*d
,
7718 struct device_attribute
*attr
, char *buf
)
7720 struct iwl3945_priv
*priv
= (struct iwl3945_priv
*)d
->driver_data
;
7722 if (!iwl3945_is_alive(priv
))
7725 return sprintf(buf
, "%d\n", iwl3945_hw_get_temperature(priv
));
7728 static DEVICE_ATTR(temperature
, S_IRUGO
, show_temperature
, NULL
);
7730 static ssize_t
show_rs_window(struct device
*d
,
7731 struct device_attribute
*attr
,
7734 struct iwl3945_priv
*priv
= d
->driver_data
;
7735 return iwl3945_fill_rs_info(priv
->hw
, buf
, IWL_AP_ID
);
7737 static DEVICE_ATTR(rs_window
, S_IRUGO
, show_rs_window
, NULL
);
7739 static ssize_t
show_tx_power(struct device
*d
,
7740 struct device_attribute
*attr
, char *buf
)
7742 struct iwl3945_priv
*priv
= (struct iwl3945_priv
*)d
->driver_data
;
7743 return sprintf(buf
, "%d\n", priv
->user_txpower_limit
);
7746 static ssize_t
store_tx_power(struct device
*d
,
7747 struct device_attribute
*attr
,
7748 const char *buf
, size_t count
)
7750 struct iwl3945_priv
*priv
= (struct iwl3945_priv
*)d
->driver_data
;
7751 char *p
= (char *)buf
;
7754 val
= simple_strtoul(p
, &p
, 10);
7756 printk(KERN_INFO DRV_NAME
7757 ": %s is not in decimal form.\n", buf
);
7759 iwl3945_hw_reg_set_txpower(priv
, val
);
7764 static DEVICE_ATTR(tx_power
, S_IWUSR
| S_IRUGO
, show_tx_power
, store_tx_power
);
7766 static ssize_t
show_flags(struct device
*d
,
7767 struct device_attribute
*attr
, char *buf
)
7769 struct iwl3945_priv
*priv
= (struct iwl3945_priv
*)d
->driver_data
;
7771 return sprintf(buf
, "0x%04X\n", priv
->active_rxon
.flags
);
7774 static ssize_t
store_flags(struct device
*d
,
7775 struct device_attribute
*attr
,
7776 const char *buf
, size_t count
)
7778 struct iwl3945_priv
*priv
= (struct iwl3945_priv
*)d
->driver_data
;
7779 u32 flags
= simple_strtoul(buf
, NULL
, 0);
7781 mutex_lock(&priv
->mutex
);
7782 if (le32_to_cpu(priv
->staging_rxon
.flags
) != flags
) {
7783 /* Cancel any currently running scans... */
7784 if (iwl3945_scan_cancel_timeout(priv
, 100))
7785 IWL_WARNING("Could not cancel scan.\n");
7787 IWL_DEBUG_INFO("Committing rxon.flags = 0x%04X\n",
7789 priv
->staging_rxon
.flags
= cpu_to_le32(flags
);
7790 iwl3945_commit_rxon(priv
);
7793 mutex_unlock(&priv
->mutex
);
7798 static DEVICE_ATTR(flags
, S_IWUSR
| S_IRUGO
, show_flags
, store_flags
);
7800 static ssize_t
show_filter_flags(struct device
*d
,
7801 struct device_attribute
*attr
, char *buf
)
7803 struct iwl3945_priv
*priv
= (struct iwl3945_priv
*)d
->driver_data
;
7805 return sprintf(buf
, "0x%04X\n",
7806 le32_to_cpu(priv
->active_rxon
.filter_flags
));
7809 static ssize_t
store_filter_flags(struct device
*d
,
7810 struct device_attribute
*attr
,
7811 const char *buf
, size_t count
)
7813 struct iwl3945_priv
*priv
= (struct iwl3945_priv
*)d
->driver_data
;
7814 u32 filter_flags
= simple_strtoul(buf
, NULL
, 0);
7816 mutex_lock(&priv
->mutex
);
7817 if (le32_to_cpu(priv
->staging_rxon
.filter_flags
) != filter_flags
) {
7818 /* Cancel any currently running scans... */
7819 if (iwl3945_scan_cancel_timeout(priv
, 100))
7820 IWL_WARNING("Could not cancel scan.\n");
7822 IWL_DEBUG_INFO("Committing rxon.filter_flags = "
7823 "0x%04X\n", filter_flags
);
7824 priv
->staging_rxon
.filter_flags
=
7825 cpu_to_le32(filter_flags
);
7826 iwl3945_commit_rxon(priv
);
7829 mutex_unlock(&priv
->mutex
);
7834 static DEVICE_ATTR(filter_flags
, S_IWUSR
| S_IRUGO
, show_filter_flags
,
7835 store_filter_flags
);
7837 static ssize_t
show_tune(struct device
*d
,
7838 struct device_attribute
*attr
, char *buf
)
7840 struct iwl3945_priv
*priv
= (struct iwl3945_priv
*)d
->driver_data
;
7842 return sprintf(buf
, "0x%04X\n",
7843 (priv
->phymode
<< 8) |
7844 le16_to_cpu(priv
->active_rxon
.channel
));
7847 static void iwl3945_set_flags_for_phymode(struct iwl3945_priv
*priv
, u8 phymode
);
7849 static ssize_t
store_tune(struct device
*d
,
7850 struct device_attribute
*attr
,
7851 const char *buf
, size_t count
)
7853 struct iwl3945_priv
*priv
= (struct iwl3945_priv
*)d
->driver_data
;
7854 char *p
= (char *)buf
;
7855 u16 tune
= simple_strtoul(p
, &p
, 0);
7856 u8 phymode
= (tune
>> 8) & 0xff;
7857 u16 channel
= tune
& 0xff;
7859 IWL_DEBUG_INFO("Tune request to:%d channel:%d\n", phymode
, channel
);
7861 mutex_lock(&priv
->mutex
);
7862 if ((le16_to_cpu(priv
->staging_rxon
.channel
) != channel
) ||
7863 (priv
->phymode
!= phymode
)) {
7864 const struct iwl3945_channel_info
*ch_info
;
7866 ch_info
= iwl3945_get_channel_info(priv
, phymode
, channel
);
7868 IWL_WARNING("Requested invalid phymode/channel "
7869 "combination: %d %d\n", phymode
, channel
);
7870 mutex_unlock(&priv
->mutex
);
7874 /* Cancel any currently running scans... */
7875 if (iwl3945_scan_cancel_timeout(priv
, 100))
7876 IWL_WARNING("Could not cancel scan.\n");
7878 IWL_DEBUG_INFO("Committing phymode and "
7879 "rxon.channel = %d %d\n",
7882 iwl3945_set_rxon_channel(priv
, phymode
, channel
);
7883 iwl3945_set_flags_for_phymode(priv
, phymode
);
7885 iwl3945_set_rate(priv
);
7886 iwl3945_commit_rxon(priv
);
7889 mutex_unlock(&priv
->mutex
);
7894 static DEVICE_ATTR(tune
, S_IWUSR
| S_IRUGO
, show_tune
, store_tune
);
7896 #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT
7898 static ssize_t
show_measurement(struct device
*d
,
7899 struct device_attribute
*attr
, char *buf
)
7901 struct iwl3945_priv
*priv
= dev_get_drvdata(d
);
7902 struct iwl3945_spectrum_notification measure_report
;
7903 u32 size
= sizeof(measure_report
), len
= 0, ofs
= 0;
7904 u8
*data
= (u8
*) & measure_report
;
7905 unsigned long flags
;
7907 spin_lock_irqsave(&priv
->lock
, flags
);
7908 if (!(priv
->measurement_status
& MEASUREMENT_READY
)) {
7909 spin_unlock_irqrestore(&priv
->lock
, flags
);
7912 memcpy(&measure_report
, &priv
->measure_report
, size
);
7913 priv
->measurement_status
= 0;
7914 spin_unlock_irqrestore(&priv
->lock
, flags
);
7916 while (size
&& (PAGE_SIZE
- len
)) {
7917 hex_dump_to_buffer(data
+ ofs
, size
, 16, 1, buf
+ len
,
7918 PAGE_SIZE
- len
, 1);
7920 if (PAGE_SIZE
- len
)
7924 size
-= min(size
, 16U);
7930 static ssize_t
store_measurement(struct device
*d
,
7931 struct device_attribute
*attr
,
7932 const char *buf
, size_t count
)
7934 struct iwl3945_priv
*priv
= dev_get_drvdata(d
);
7935 struct ieee80211_measurement_params params
= {
7936 .channel
= le16_to_cpu(priv
->active_rxon
.channel
),
7937 .start_time
= cpu_to_le64(priv
->last_tsf
),
7938 .duration
= cpu_to_le16(1),
7940 u8 type
= IWL_MEASURE_BASIC
;
7946 strncpy(buffer
, buf
, min(sizeof(buffer
), count
));
7947 channel
= simple_strtoul(p
, NULL
, 0);
7949 params
.channel
= channel
;
7952 while (*p
&& *p
!= ' ')
7955 type
= simple_strtoul(p
+ 1, NULL
, 0);
7958 IWL_DEBUG_INFO("Invoking measurement of type %d on "
7959 "channel %d (for '%s')\n", type
, params
.channel
, buf
);
7960 iwl3945_get_measurement(priv
, ¶ms
, type
);
7965 static DEVICE_ATTR(measurement
, S_IRUSR
| S_IWUSR
,
7966 show_measurement
, store_measurement
);
7967 #endif /* CONFIG_IWL3945_SPECTRUM_MEASUREMENT */
7969 static ssize_t
show_rate(struct device
*d
,
7970 struct device_attribute
*attr
, char *buf
)
7972 struct iwl3945_priv
*priv
= dev_get_drvdata(d
);
7973 unsigned long flags
;
7976 spin_lock_irqsave(&priv
->sta_lock
, flags
);
7977 if (priv
->iw_mode
== IEEE80211_IF_TYPE_STA
)
7978 i
= priv
->stations
[IWL_AP_ID
].current_rate
.s
.rate
;
7980 i
= priv
->stations
[IWL_STA_ID
].current_rate
.s
.rate
;
7981 spin_unlock_irqrestore(&priv
->sta_lock
, flags
);
7983 i
= iwl3945_rate_index_from_plcp(i
);
7985 return sprintf(buf
, "0\n");
7987 return sprintf(buf
, "%d%s\n",
7988 (iwl3945_rates
[i
].ieee
>> 1),
7989 (iwl3945_rates
[i
].ieee
& 0x1) ? ".5" : "");
7992 static DEVICE_ATTR(rate
, S_IRUSR
, show_rate
, NULL
);
7994 static ssize_t
store_retry_rate(struct device
*d
,
7995 struct device_attribute
*attr
,
7996 const char *buf
, size_t count
)
7998 struct iwl3945_priv
*priv
= dev_get_drvdata(d
);
8000 priv
->retry_rate
= simple_strtoul(buf
, NULL
, 0);
8001 if (priv
->retry_rate
<= 0)
8002 priv
->retry_rate
= 1;
8007 static ssize_t
show_retry_rate(struct device
*d
,
8008 struct device_attribute
*attr
, char *buf
)
8010 struct iwl3945_priv
*priv
= dev_get_drvdata(d
);
8011 return sprintf(buf
, "%d", priv
->retry_rate
);
8014 static DEVICE_ATTR(retry_rate
, S_IWUSR
| S_IRUSR
, show_retry_rate
,
8017 static ssize_t
store_power_level(struct device
*d
,
8018 struct device_attribute
*attr
,
8019 const char *buf
, size_t count
)
8021 struct iwl3945_priv
*priv
= dev_get_drvdata(d
);
8025 mode
= simple_strtoul(buf
, NULL
, 0);
8026 mutex_lock(&priv
->mutex
);
8028 if (!iwl3945_is_ready(priv
)) {
8033 if ((mode
< 1) || (mode
> IWL_POWER_LIMIT
) || (mode
== IWL_POWER_AC
))
8034 mode
= IWL_POWER_AC
;
8036 mode
|= IWL_POWER_ENABLED
;
8038 if (mode
!= priv
->power_mode
) {
8039 rc
= iwl3945_send_power_mode(priv
, IWL_POWER_LEVEL(mode
));
8041 IWL_DEBUG_MAC80211("failed setting power mode.\n");
8044 priv
->power_mode
= mode
;
8050 mutex_unlock(&priv
->mutex
);
8054 #define MAX_WX_STRING 80
8056 /* Values are in microsecond */
8057 static const s32 timeout_duration
[] = {
8064 static const s32 period_duration
[] = {
8072 static ssize_t
show_power_level(struct device
*d
,
8073 struct device_attribute
*attr
, char *buf
)
8075 struct iwl3945_priv
*priv
= dev_get_drvdata(d
);
8076 int level
= IWL_POWER_LEVEL(priv
->power_mode
);
8079 p
+= sprintf(p
, "%d ", level
);
8081 case IWL_POWER_MODE_CAM
:
8083 p
+= sprintf(p
, "(AC)");
8085 case IWL_POWER_BATTERY
:
8086 p
+= sprintf(p
, "(BATTERY)");
8090 "(Timeout %dms, Period %dms)",
8091 timeout_duration
[level
- 1] / 1000,
8092 period_duration
[level
- 1] / 1000);
8095 if (!(priv
->power_mode
& IWL_POWER_ENABLED
))
8096 p
+= sprintf(p
, " OFF\n");
8098 p
+= sprintf(p
, " \n");
8100 return (p
- buf
+ 1);
8104 static DEVICE_ATTR(power_level
, S_IWUSR
| S_IRUSR
, show_power_level
,
8107 static ssize_t
show_channels(struct device
*d
,
8108 struct device_attribute
*attr
, char *buf
)
8110 struct iwl3945_priv
*priv
= dev_get_drvdata(d
);
8112 struct ieee80211_channel
*channels
= NULL
;
8113 const struct ieee80211_hw_mode
*hw_mode
= NULL
;
8116 if (!iwl3945_is_ready(priv
))
8119 hw_mode
= iwl3945_get_hw_mode(priv
, MODE_IEEE80211G
);
8121 hw_mode
= iwl3945_get_hw_mode(priv
, MODE_IEEE80211B
);
8123 channels
= hw_mode
->channels
;
8124 count
= hw_mode
->num_channels
;
8129 "Displaying %d channels in 2.4GHz band "
8130 "(802.11bg):\n", count
);
8132 for (i
= 0; i
< count
; i
++)
8133 len
+= sprintf(&buf
[len
], "%d: %ddBm: BSS%s%s, %s.\n",
8135 channels
[i
].power_level
,
8137 flag
& IEEE80211_CHAN_W_RADAR_DETECT
?
8138 " (IEEE 802.11h required)" : "",
8139 (!(channels
[i
].flag
& IEEE80211_CHAN_W_IBSS
)
8142 IEEE80211_CHAN_W_RADAR_DETECT
)) ? "" :
8145 flag
& IEEE80211_CHAN_W_ACTIVE_SCAN
?
8146 "active/passive" : "passive only");
8148 hw_mode
= iwl3945_get_hw_mode(priv
, MODE_IEEE80211A
);
8150 channels
= hw_mode
->channels
;
8151 count
= hw_mode
->num_channels
;
8157 len
+= sprintf(&buf
[len
], "Displaying %d channels in 5.2GHz band "
8158 "(802.11a):\n", count
);
8160 for (i
= 0; i
< count
; i
++)
8161 len
+= sprintf(&buf
[len
], "%d: %ddBm: BSS%s%s, %s.\n",
8163 channels
[i
].power_level
,
8165 flag
& IEEE80211_CHAN_W_RADAR_DETECT
?
8166 " (IEEE 802.11h required)" : "",
8167 (!(channels
[i
].flag
& IEEE80211_CHAN_W_IBSS
)
8170 IEEE80211_CHAN_W_RADAR_DETECT
)) ? "" :
8173 flag
& IEEE80211_CHAN_W_ACTIVE_SCAN
?
8174 "active/passive" : "passive only");
8179 static DEVICE_ATTR(channels
, S_IRUSR
, show_channels
, NULL
);
8181 static ssize_t
show_statistics(struct device
*d
,
8182 struct device_attribute
*attr
, char *buf
)
8184 struct iwl3945_priv
*priv
= dev_get_drvdata(d
);
8185 u32 size
= sizeof(struct iwl3945_notif_statistics
);
8186 u32 len
= 0, ofs
= 0;
8187 u8
*data
= (u8
*) & priv
->statistics
;
8190 if (!iwl3945_is_alive(priv
))
8193 mutex_lock(&priv
->mutex
);
8194 rc
= iwl3945_send_statistics_request(priv
);
8195 mutex_unlock(&priv
->mutex
);
8199 "Error sending statistics request: 0x%08X\n", rc
);
8203 while (size
&& (PAGE_SIZE
- len
)) {
8204 hex_dump_to_buffer(data
+ ofs
, size
, 16, 1, buf
+ len
,
8205 PAGE_SIZE
- len
, 1);
8207 if (PAGE_SIZE
- len
)
8211 size
-= min(size
, 16U);
8217 static DEVICE_ATTR(statistics
, S_IRUGO
, show_statistics
, NULL
);
8219 static ssize_t
show_antenna(struct device
*d
,
8220 struct device_attribute
*attr
, char *buf
)
8222 struct iwl3945_priv
*priv
= dev_get_drvdata(d
);
8224 if (!iwl3945_is_alive(priv
))
8227 return sprintf(buf
, "%d\n", priv
->antenna
);
8230 static ssize_t
store_antenna(struct device
*d
,
8231 struct device_attribute
*attr
,
8232 const char *buf
, size_t count
)
8235 struct iwl3945_priv
*priv
= dev_get_drvdata(d
);
8240 if (sscanf(buf
, "%1i", &ant
) != 1) {
8241 IWL_DEBUG_INFO("not in hex or decimal form.\n");
8245 if ((ant
>= 0) && (ant
<= 2)) {
8246 IWL_DEBUG_INFO("Setting antenna select to %d.\n", ant
);
8247 priv
->antenna
= (enum iwl3945_antenna
)ant
;
8249 IWL_DEBUG_INFO("Bad antenna select value %d.\n", ant
);
8255 static DEVICE_ATTR(antenna
, S_IWUSR
| S_IRUGO
, show_antenna
, store_antenna
);
8257 static ssize_t
show_status(struct device
*d
,
8258 struct device_attribute
*attr
, char *buf
)
8260 struct iwl3945_priv
*priv
= (struct iwl3945_priv
*)d
->driver_data
;
8261 if (!iwl3945_is_alive(priv
))
8263 return sprintf(buf
, "0x%08x\n", (int)priv
->status
);
8266 static DEVICE_ATTR(status
, S_IRUGO
, show_status
, NULL
);
8268 static ssize_t
dump_error_log(struct device
*d
,
8269 struct device_attribute
*attr
,
8270 const char *buf
, size_t count
)
8272 char *p
= (char *)buf
;
8275 iwl3945_dump_nic_error_log((struct iwl3945_priv
*)d
->driver_data
);
8277 return strnlen(buf
, count
);
8280 static DEVICE_ATTR(dump_errors
, S_IWUSR
, NULL
, dump_error_log
);
8282 static ssize_t
dump_event_log(struct device
*d
,
8283 struct device_attribute
*attr
,
8284 const char *buf
, size_t count
)
8286 char *p
= (char *)buf
;
8289 iwl3945_dump_nic_event_log((struct iwl3945_priv
*)d
->driver_data
);
8291 return strnlen(buf
, count
);
8294 static DEVICE_ATTR(dump_events
, S_IWUSR
, NULL
, dump_event_log
);
8296 /*****************************************************************************
8298 * driver setup and teardown
8300 *****************************************************************************/
8302 static void iwl3945_setup_deferred_work(struct iwl3945_priv
*priv
)
8304 priv
->workqueue
= create_workqueue(DRV_NAME
);
8306 init_waitqueue_head(&priv
->wait_command_queue
);
8308 INIT_WORK(&priv
->up
, iwl3945_bg_up
);
8309 INIT_WORK(&priv
->restart
, iwl3945_bg_restart
);
8310 INIT_WORK(&priv
->rx_replenish
, iwl3945_bg_rx_replenish
);
8311 INIT_WORK(&priv
->scan_completed
, iwl3945_bg_scan_completed
);
8312 INIT_WORK(&priv
->request_scan
, iwl3945_bg_request_scan
);
8313 INIT_WORK(&priv
->abort_scan
, iwl3945_bg_abort_scan
);
8314 INIT_WORK(&priv
->rf_kill
, iwl3945_bg_rf_kill
);
8315 INIT_WORK(&priv
->beacon_update
, iwl3945_bg_beacon_update
);
8316 INIT_DELAYED_WORK(&priv
->post_associate
, iwl3945_bg_post_associate
);
8317 INIT_DELAYED_WORK(&priv
->init_alive_start
, iwl3945_bg_init_alive_start
);
8318 INIT_DELAYED_WORK(&priv
->alive_start
, iwl3945_bg_alive_start
);
8319 INIT_DELAYED_WORK(&priv
->scan_check
, iwl3945_bg_scan_check
);
8321 iwl3945_hw_setup_deferred_work(priv
);
8323 tasklet_init(&priv
->irq_tasklet
, (void (*)(unsigned long))
8324 iwl3945_irq_tasklet
, (unsigned long)priv
);
8327 static void iwl3945_cancel_deferred_work(struct iwl3945_priv
*priv
)
8329 iwl3945_hw_cancel_deferred_work(priv
);
8331 cancel_delayed_work_sync(&priv
->init_alive_start
);
8332 cancel_delayed_work(&priv
->scan_check
);
8333 cancel_delayed_work(&priv
->alive_start
);
8334 cancel_delayed_work(&priv
->post_associate
);
8335 cancel_work_sync(&priv
->beacon_update
);
8338 static struct attribute
*iwl3945_sysfs_entries
[] = {
8339 &dev_attr_antenna
.attr
,
8340 &dev_attr_channels
.attr
,
8341 &dev_attr_dump_errors
.attr
,
8342 &dev_attr_dump_events
.attr
,
8343 &dev_attr_flags
.attr
,
8344 &dev_attr_filter_flags
.attr
,
8345 #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT
8346 &dev_attr_measurement
.attr
,
8348 &dev_attr_power_level
.attr
,
8349 &dev_attr_rate
.attr
,
8350 &dev_attr_retry_rate
.attr
,
8351 &dev_attr_rf_kill
.attr
,
8352 &dev_attr_rs_window
.attr
,
8353 &dev_attr_statistics
.attr
,
8354 &dev_attr_status
.attr
,
8355 &dev_attr_temperature
.attr
,
8356 &dev_attr_tune
.attr
,
8357 &dev_attr_tx_power
.attr
,
8362 static struct attribute_group iwl3945_attribute_group
= {
8363 .name
= NULL
, /* put in device directory */
8364 .attrs
= iwl3945_sysfs_entries
,
8367 static struct ieee80211_ops iwl3945_hw_ops
= {
8368 .tx
= iwl3945_mac_tx
,
8369 .start
= iwl3945_mac_start
,
8370 .stop
= iwl3945_mac_stop
,
8371 .add_interface
= iwl3945_mac_add_interface
,
8372 .remove_interface
= iwl3945_mac_remove_interface
,
8373 .config
= iwl3945_mac_config
,
8374 .config_interface
= iwl3945_mac_config_interface
,
8375 .configure_filter
= iwl3945_configure_filter
,
8376 .set_key
= iwl3945_mac_set_key
,
8377 .get_stats
= iwl3945_mac_get_stats
,
8378 .get_tx_stats
= iwl3945_mac_get_tx_stats
,
8379 .conf_tx
= iwl3945_mac_conf_tx
,
8380 .get_tsf
= iwl3945_mac_get_tsf
,
8381 .reset_tsf
= iwl3945_mac_reset_tsf
,
8382 .beacon_update
= iwl3945_mac_beacon_update
,
8383 .hw_scan
= iwl3945_mac_hw_scan
8386 static int iwl3945_pci_probe(struct pci_dev
*pdev
, const struct pci_device_id
*ent
)
8390 struct iwl3945_priv
*priv
;
8391 struct ieee80211_hw
*hw
;
8394 /* Disabling hardware scan means that mac80211 will perform scans
8395 * "the hard way", rather than using device's scan. */
8396 if (iwl3945_param_disable_hw_scan
) {
8397 IWL_DEBUG_INFO("Disabling hw_scan\n");
8398 iwl3945_hw_ops
.hw_scan
= NULL
;
8401 if ((iwl3945_param_queues_num
> IWL_MAX_NUM_QUEUES
) ||
8402 (iwl3945_param_queues_num
< IWL_MIN_NUM_QUEUES
)) {
8403 IWL_ERROR("invalid queues_num, should be between %d and %d\n",
8404 IWL_MIN_NUM_QUEUES
, IWL_MAX_NUM_QUEUES
);
8409 /* mac80211 allocates memory for this device instance, including
8410 * space for this driver's private structure */
8411 hw
= ieee80211_alloc_hw(sizeof(struct iwl3945_priv
), &iwl3945_hw_ops
);
8413 IWL_ERROR("Can not allocate network device\n");
8417 SET_IEEE80211_DEV(hw
, &pdev
->dev
);
8419 hw
->rate_control_algorithm
= "iwl-3945-rs";
8421 IWL_DEBUG_INFO("*** LOAD DRIVER ***\n");
8425 priv
->pci_dev
= pdev
;
8427 /* Select antenna (may be helpful if only one antenna is connected) */
8428 priv
->antenna
= (enum iwl3945_antenna
)iwl3945_param_antenna
;
8429 #ifdef CONFIG_IWL3945_DEBUG
8430 iwl3945_debug_level
= iwl3945_param_debug
;
8431 atomic_set(&priv
->restrict_refcnt
, 0);
8433 priv
->retry_rate
= 1;
8435 priv
->ibss_beacon
= NULL
;
8437 /* Tell mac80211 and its clients (e.g. Wireless Extensions)
8438 * the range of signal quality values that we'll provide.
8439 * Negative values for level/noise indicate that we'll provide dBm.
8440 * For WE, at least, non-0 values here *enable* display of values
8441 * in app (iwconfig). */
8442 hw
->max_rssi
= -20; /* signal level, negative indicates dBm */
8443 hw
->max_noise
= -20; /* noise level, negative indicates dBm */
8444 hw
->max_signal
= 100; /* link quality indication (%) */
8446 /* Tell mac80211 our Tx characteristics */
8447 hw
->flags
= IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE
;
8449 /* 4 EDCA QOS priorities */
8452 spin_lock_init(&priv
->lock
);
8453 spin_lock_init(&priv
->power_data
.lock
);
8454 spin_lock_init(&priv
->sta_lock
);
8455 spin_lock_init(&priv
->hcmd_lock
);
8457 for (i
= 0; i
< IWL_IBSS_MAC_HASH_SIZE
; i
++)
8458 INIT_LIST_HEAD(&priv
->ibss_mac_hash
[i
]);
8460 INIT_LIST_HEAD(&priv
->free_frames
);
8462 mutex_init(&priv
->mutex
);
8463 if (pci_enable_device(pdev
)) {
8465 goto out_ieee80211_free_hw
;
8468 pci_set_master(pdev
);
8470 /* Clear the driver's (not device's) station table */
8471 iwl3945_clear_stations_table(priv
);
8473 priv
->data_retry_limit
= -1;
8474 priv
->ieee_channels
= NULL
;
8475 priv
->ieee_rates
= NULL
;
8478 err
= pci_set_dma_mask(pdev
, DMA_32BIT_MASK
);
8480 err
= pci_set_consistent_dma_mask(pdev
, DMA_32BIT_MASK
);
8482 printk(KERN_WARNING DRV_NAME
": No suitable DMA available.\n");
8483 goto out_pci_disable_device
;
8486 pci_set_drvdata(pdev
, priv
);
8487 err
= pci_request_regions(pdev
, DRV_NAME
);
8489 goto out_pci_disable_device
;
8491 /* We disable the RETRY_TIMEOUT register (0x41) to keep
8492 * PCI Tx retries from interfering with C3 CPU state */
8493 pci_write_config_byte(pdev
, 0x41, 0x00);
8495 priv
->hw_base
= pci_iomap(pdev
, 0, 0);
8496 if (!priv
->hw_base
) {
8498 goto out_pci_release_regions
;
8501 IWL_DEBUG_INFO("pci_resource_len = 0x%08llx\n",
8502 (unsigned long long) pci_resource_len(pdev
, 0));
8503 IWL_DEBUG_INFO("pci_resource_base = %p\n", priv
->hw_base
);
8505 /* Initialize module parameter values here */
8507 /* Disable radio (SW RF KILL) via parameter when loading driver */
8508 if (iwl3945_param_disable
) {
8509 set_bit(STATUS_RF_KILL_SW
, &priv
->status
);
8510 IWL_DEBUG_INFO("Radio disabled.\n");
8513 priv
->iw_mode
= IEEE80211_IF_TYPE_STA
;
8516 (priv
->pci_dev
->device
<< 16) | priv
->pci_dev
->subsystem_device
;
8519 case 0x42221005: /* 0x4222 0x8086 0x1005 is BG SKU */
8520 case 0x42221034: /* 0x4222 0x8086 0x1034 is BG SKU */
8521 case 0x42271014: /* 0x4227 0x8086 0x1014 is BG SKU */
8522 case 0x42221044: /* 0x4222 0x8086 0x1044 is BG SKU */
8527 * Rest are assumed ABG SKU -- if this is not the
8528 * case then the card will get the wrong 'Detected'
8529 * line in the kernel log however the code that
8530 * initializes the GEO table will detect no A-band
8531 * channels and remove the is_abg mask.
8538 printk(KERN_INFO DRV_NAME
8539 ": Detected Intel PRO/Wireless 3945%sBG Network Connection\n",
8540 priv
->is_abg
? "A" : "");
8542 /* Device-specific setup */
8543 if (iwl3945_hw_set_hw_setting(priv
)) {
8544 IWL_ERROR("failed to set hw settings\n");
8545 mutex_unlock(&priv
->mutex
);
8549 #ifdef CONFIG_IWL3945_QOS
8550 if (iwl3945_param_qos_enable
)
8551 priv
->qos_data
.qos_enable
= 1;
8553 iwl3945_reset_qos(priv
);
8555 priv
->qos_data
.qos_active
= 0;
8556 priv
->qos_data
.qos_cap
.val
= 0;
8557 #endif /* CONFIG_IWL3945_QOS */
8559 iwl3945_set_rxon_channel(priv
, MODE_IEEE80211G
, 6);
8560 iwl3945_setup_deferred_work(priv
);
8561 iwl3945_setup_rx_handlers(priv
);
8563 priv
->rates_mask
= IWL_RATES_MASK
;
8564 /* If power management is turned on, default to AC mode */
8565 priv
->power_mode
= IWL_POWER_AC
;
8566 priv
->user_txpower_limit
= IWL_DEFAULT_TX_POWER
;
8568 iwl3945_disable_interrupts(priv
);
8570 pci_enable_msi(pdev
);
8572 err
= request_irq(pdev
->irq
, iwl3945_isr
, IRQF_SHARED
, DRV_NAME
, priv
);
8574 IWL_ERROR("Error allocating IRQ %d\n", pdev
->irq
);
8575 goto out_disable_msi
;
8578 mutex_lock(&priv
->mutex
);
8580 err
= sysfs_create_group(&pdev
->dev
.kobj
, &iwl3945_attribute_group
);
8582 IWL_ERROR("failed to create sysfs device attributes\n");
8583 mutex_unlock(&priv
->mutex
);
8584 goto out_release_irq
;
8587 /* fetch ucode file from disk, alloc and copy to bus-master buffers ...
8588 * ucode filename and max sizes are card-specific. */
8589 err
= iwl3945_read_ucode(priv
);
8591 IWL_ERROR("Could not read microcode: %d\n", err
);
8592 mutex_unlock(&priv
->mutex
);
8596 mutex_unlock(&priv
->mutex
);
8598 IWL_DEBUG_INFO("Queueing UP work.\n");
8600 queue_work(priv
->workqueue
, &priv
->up
);
8605 iwl3945_dealloc_ucode_pci(priv
);
8607 sysfs_remove_group(&pdev
->dev
.kobj
, &iwl3945_attribute_group
);
8610 free_irq(pdev
->irq
, priv
);
8613 pci_disable_msi(pdev
);
8614 destroy_workqueue(priv
->workqueue
);
8615 priv
->workqueue
= NULL
;
8616 iwl3945_unset_hw_setting(priv
);
8619 pci_iounmap(pdev
, priv
->hw_base
);
8620 out_pci_release_regions
:
8621 pci_release_regions(pdev
);
8622 out_pci_disable_device
:
8623 pci_disable_device(pdev
);
8624 pci_set_drvdata(pdev
, NULL
);
8625 out_ieee80211_free_hw
:
8626 ieee80211_free_hw(priv
->hw
);
8631 static void iwl3945_pci_remove(struct pci_dev
*pdev
)
8633 struct iwl3945_priv
*priv
= pci_get_drvdata(pdev
);
8634 struct list_head
*p
, *q
;
8640 IWL_DEBUG_INFO("*** UNLOAD DRIVER ***\n");
8642 set_bit(STATUS_EXIT_PENDING
, &priv
->status
);
8646 /* Free MAC hash list for ADHOC */
8647 for (i
= 0; i
< IWL_IBSS_MAC_HASH_SIZE
; i
++) {
8648 list_for_each_safe(p
, q
, &priv
->ibss_mac_hash
[i
]) {
8650 kfree(list_entry(p
, struct iwl3945_ibss_seq
, list
));
8654 sysfs_remove_group(&pdev
->dev
.kobj
, &iwl3945_attribute_group
);
8656 iwl3945_dealloc_ucode_pci(priv
);
8659 iwl3945_rx_queue_free(priv
, &priv
->rxq
);
8660 iwl3945_hw_txq_ctx_free(priv
);
8662 iwl3945_unset_hw_setting(priv
);
8663 iwl3945_clear_stations_table(priv
);
8665 if (priv
->mac80211_registered
) {
8666 ieee80211_unregister_hw(priv
->hw
);
8667 iwl3945_rate_control_unregister(priv
->hw
);
8670 /*netif_stop_queue(dev); */
8671 flush_workqueue(priv
->workqueue
);
8673 /* ieee80211_unregister_hw calls iwl3945_mac_stop, which flushes
8674 * priv->workqueue... so we can't take down the workqueue
8676 destroy_workqueue(priv
->workqueue
);
8677 priv
->workqueue
= NULL
;
8679 free_irq(pdev
->irq
, priv
);
8680 pci_disable_msi(pdev
);
8681 pci_iounmap(pdev
, priv
->hw_base
);
8682 pci_release_regions(pdev
);
8683 pci_disable_device(pdev
);
8684 pci_set_drvdata(pdev
, NULL
);
8686 kfree(priv
->channel_info
);
8688 kfree(priv
->ieee_channels
);
8689 kfree(priv
->ieee_rates
);
8691 if (priv
->ibss_beacon
)
8692 dev_kfree_skb(priv
->ibss_beacon
);
8694 ieee80211_free_hw(priv
->hw
);
8699 static int iwl3945_pci_suspend(struct pci_dev
*pdev
, pm_message_t state
)
8701 struct iwl3945_priv
*priv
= pci_get_drvdata(pdev
);
8703 set_bit(STATUS_IN_SUSPEND
, &priv
->status
);
8705 /* Take down the device; powers it off, etc. */
8708 if (priv
->mac80211_registered
)
8709 ieee80211_stop_queues(priv
->hw
);
8711 pci_save_state(pdev
);
8712 pci_disable_device(pdev
);
8713 pci_set_power_state(pdev
, PCI_D3hot
);
8718 static void iwl3945_resume(struct iwl3945_priv
*priv
)
8720 unsigned long flags
;
8722 /* The following it a temporary work around due to the
8723 * suspend / resume not fully initializing the NIC correctly.
8724 * Without all of the following, resume will not attempt to take
8725 * down the NIC (it shouldn't really need to) and will just try
8726 * and bring the NIC back up. However that fails during the
8727 * ucode verification process. This then causes iwl3945_down to be
8728 * called *after* iwl3945_hw_nic_init() has succeeded -- which
8729 * then lets the next init sequence succeed. So, we've
8730 * replicated all of that NIC init code here... */
8732 iwl3945_write32(priv
, CSR_INT
, 0xFFFFFFFF);
8734 iwl3945_hw_nic_init(priv
);
8736 iwl3945_write32(priv
, CSR_UCODE_DRV_GP1_CLR
, CSR_UCODE_SW_BIT_RFKILL
);
8737 iwl3945_write32(priv
, CSR_UCODE_DRV_GP1_CLR
,
8738 CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED
);
8739 iwl3945_write32(priv
, CSR_INT
, 0xFFFFFFFF);
8740 iwl3945_write32(priv
, CSR_UCODE_DRV_GP1_CLR
, CSR_UCODE_SW_BIT_RFKILL
);
8741 iwl3945_write32(priv
, CSR_UCODE_DRV_GP1_CLR
, CSR_UCODE_SW_BIT_RFKILL
);
8743 /* tell the device to stop sending interrupts */
8744 iwl3945_disable_interrupts(priv
);
8746 spin_lock_irqsave(&priv
->lock
, flags
);
8747 iwl3945_clear_bit(priv
, CSR_GP_CNTRL
, CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ
);
8749 if (!iwl3945_grab_nic_access(priv
)) {
8750 iwl3945_write_prph(priv
, APMG_CLK_DIS_REG
,
8751 APMG_CLK_VAL_DMA_CLK_RQT
);
8752 iwl3945_release_nic_access(priv
);
8754 spin_unlock_irqrestore(&priv
->lock
, flags
);
8758 iwl3945_hw_nic_reset(priv
);
8760 /* Bring the device back up */
8761 clear_bit(STATUS_IN_SUSPEND
, &priv
->status
);
8762 queue_work(priv
->workqueue
, &priv
->up
);
8765 static int iwl3945_pci_resume(struct pci_dev
*pdev
)
8767 struct iwl3945_priv
*priv
= pci_get_drvdata(pdev
);
8770 printk(KERN_INFO
"Coming out of suspend...\n");
8772 pci_set_power_state(pdev
, PCI_D0
);
8773 err
= pci_enable_device(pdev
);
8774 pci_restore_state(pdev
);
8777 * Suspend/Resume resets the PCI configuration space, so we have to
8778 * re-disable the RETRY_TIMEOUT register (0x41) to keep PCI Tx retries
8779 * from interfering with C3 CPU state. pci_restore_state won't help
8780 * here since it only restores the first 64 bytes pci config header.
8782 pci_write_config_byte(pdev
, 0x41, 0x00);
8784 iwl3945_resume(priv
);
8789 #endif /* CONFIG_PM */
8791 /*****************************************************************************
8793 * driver and module entry point
8795 *****************************************************************************/
8797 static struct pci_driver iwl3945_driver
= {
8799 .id_table
= iwl3945_hw_card_ids
,
8800 .probe
= iwl3945_pci_probe
,
8801 .remove
= __devexit_p(iwl3945_pci_remove
),
8803 .suspend
= iwl3945_pci_suspend
,
8804 .resume
= iwl3945_pci_resume
,
8808 static int __init
iwl3945_init(void)
8812 printk(KERN_INFO DRV_NAME
": " DRV_DESCRIPTION
", " DRV_VERSION
"\n");
8813 printk(KERN_INFO DRV_NAME
": " DRV_COPYRIGHT
"\n");
8814 ret
= pci_register_driver(&iwl3945_driver
);
8816 IWL_ERROR("Unable to initialize PCI module\n");
8819 #ifdef CONFIG_IWL3945_DEBUG
8820 ret
= driver_create_file(&iwl3945_driver
.driver
, &driver_attr_debug_level
);
8822 IWL_ERROR("Unable to create driver sysfs file\n");
8823 pci_unregister_driver(&iwl3945_driver
);
8831 static void __exit
iwl3945_exit(void)
8833 #ifdef CONFIG_IWL3945_DEBUG
8834 driver_remove_file(&iwl3945_driver
.driver
, &driver_attr_debug_level
);
8836 pci_unregister_driver(&iwl3945_driver
);
8839 module_param_named(antenna
, iwl3945_param_antenna
, int, 0444);
8840 MODULE_PARM_DESC(antenna
, "select antenna (1=Main, 2=Aux, default 0 [both])");
8841 module_param_named(disable
, iwl3945_param_disable
, int, 0444);
8842 MODULE_PARM_DESC(disable
, "manually disable the radio (default 0 [radio on])");
8843 module_param_named(hwcrypto
, iwl3945_param_hwcrypto
, int, 0444);
8844 MODULE_PARM_DESC(hwcrypto
,
8845 "using hardware crypto engine (default 0 [software])\n");
8846 module_param_named(debug
, iwl3945_param_debug
, int, 0444);
8847 MODULE_PARM_DESC(debug
, "debug output mask");
8848 module_param_named(disable_hw_scan
, iwl3945_param_disable_hw_scan
, int, 0444);
8849 MODULE_PARM_DESC(disable_hw_scan
, "disable hardware scanning (default 0)");
8851 module_param_named(queues_num
, iwl3945_param_queues_num
, int, 0444);
8852 MODULE_PARM_DESC(queues_num
, "number of hw queues.");
8855 module_param_named(qos_enable
, iwl3945_param_qos_enable
, int, 0444);
8856 MODULE_PARM_DESC(qos_enable
, "enable all QoS functionality");
8858 module_exit(iwl3945_exit
);
8859 module_init(iwl3945_init
);