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 "1.2.23k" 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 * Clear the OWNER_MSK, to establish driver (instead of uCode running on
1562 * embedded controller) as EEPROM reader; each read is a series of pulses
1563 * to/from the EEPROM chip, not a single event, so even reads could conflict
1564 * if they weren't arbitrated by some ownership mechanism. Here, the driver
1565 * simply claims ownership, which should be safe when this function is called
1566 * (i.e. before loading uCode!).
1568 static inline int iwl3945_eeprom_acquire_semaphore(struct iwl3945_priv
*priv
)
1570 _iwl3945_clear_bit(priv
, CSR_EEPROM_GP
, CSR_EEPROM_GP_IF_OWNER_MSK
);
1575 * iwl3945_eeprom_init - read EEPROM contents
1577 * Load the EEPROM contents from adapter into priv->eeprom
1579 * NOTE: This routine uses the non-debug IO access functions.
1581 int iwl3945_eeprom_init(struct iwl3945_priv
*priv
)
1583 __le16
*e
= (__le16
*)&priv
->eeprom
;
1584 u32 gp
= iwl3945_read32(priv
, CSR_EEPROM_GP
);
1586 int sz
= sizeof(priv
->eeprom
);
1591 /* The EEPROM structure has several padding buffers within it
1592 * and when adding new EEPROM maps is subject to programmer errors
1593 * which may be very difficult to identify without explicitly
1594 * checking the resulting size of the eeprom map. */
1595 BUILD_BUG_ON(sizeof(priv
->eeprom
) != IWL_EEPROM_IMAGE_SIZE
);
1597 if ((gp
& CSR_EEPROM_GP_VALID_MSK
) == CSR_EEPROM_GP_BAD_SIGNATURE
) {
1598 IWL_ERROR("EEPROM not found, EEPROM_GP=0x%08x", gp
);
1602 /* Make sure driver (instead of uCode) is allowed to read EEPROM */
1603 rc
= iwl3945_eeprom_acquire_semaphore(priv
);
1605 IWL_ERROR("Failed to acquire EEPROM semaphore.\n");
1609 /* eeprom is an array of 16bit values */
1610 for (addr
= 0; addr
< sz
; addr
+= sizeof(u16
)) {
1611 _iwl3945_write32(priv
, CSR_EEPROM_REG
, addr
<< 1);
1612 _iwl3945_clear_bit(priv
, CSR_EEPROM_REG
, CSR_EEPROM_REG_BIT_CMD
);
1614 for (i
= 0; i
< IWL_EEPROM_ACCESS_TIMEOUT
;
1615 i
+= IWL_EEPROM_ACCESS_DELAY
) {
1616 r
= _iwl3945_read_direct32(priv
, CSR_EEPROM_REG
);
1617 if (r
& CSR_EEPROM_REG_READ_VALID_MSK
)
1619 udelay(IWL_EEPROM_ACCESS_DELAY
);
1622 if (!(r
& CSR_EEPROM_REG_READ_VALID_MSK
)) {
1623 IWL_ERROR("Time out reading EEPROM[%d]", addr
);
1626 e
[addr
/ 2] = cpu_to_le16(r
>> 16);
1632 /******************************************************************************
1634 * Misc. internal state and helper functions
1636 ******************************************************************************/
1637 #ifdef CONFIG_IWL3945_DEBUG
1640 * iwl3945_report_frame - dump frame to syslog during debug sessions
1642 * You may hack this function to show different aspects of received frames,
1643 * including selective frame dumps.
1644 * group100 parameter selects whether to show 1 out of 100 good frames.
1646 void iwl3945_report_frame(struct iwl3945_priv
*priv
,
1647 struct iwl3945_rx_packet
*pkt
,
1648 struct ieee80211_hdr
*header
, int group100
)
1651 u32 print_summary
= 0;
1652 u32 print_dump
= 0; /* set to 1 to dump all frames' contents */
1669 struct iwl3945_rx_frame_stats
*rx_stats
= IWL_RX_STATS(pkt
);
1670 struct iwl3945_rx_frame_hdr
*rx_hdr
= IWL_RX_HDR(pkt
);
1671 struct iwl3945_rx_frame_end
*rx_end
= IWL_RX_END(pkt
);
1672 u8
*data
= IWL_RX_DATA(pkt
);
1675 fc
= le16_to_cpu(header
->frame_control
);
1676 seq_ctl
= le16_to_cpu(header
->seq_ctrl
);
1679 channel
= le16_to_cpu(rx_hdr
->channel
);
1680 phy_flags
= le16_to_cpu(rx_hdr
->phy_flags
);
1681 rate_sym
= rx_hdr
->rate
;
1682 length
= le16_to_cpu(rx_hdr
->len
);
1684 /* end-of-frame status and timestamp */
1685 status
= le32_to_cpu(rx_end
->status
);
1686 bcn_tmr
= le32_to_cpu(rx_end
->beacon_timestamp
);
1687 tsf_low
= le64_to_cpu(rx_end
->timestamp
) & 0x0ffffffff;
1688 tsf
= le64_to_cpu(rx_end
->timestamp
);
1690 /* signal statistics */
1691 rssi
= rx_stats
->rssi
;
1692 agc
= rx_stats
->agc
;
1693 sig_avg
= le16_to_cpu(rx_stats
->sig_avg
);
1694 noise_diff
= le16_to_cpu(rx_stats
->noise_diff
);
1696 to_us
= !compare_ether_addr(header
->addr1
, priv
->mac_addr
);
1698 /* if data frame is to us and all is good,
1699 * (optionally) print summary for only 1 out of every 100 */
1700 if (to_us
&& (fc
& ~IEEE80211_FCTL_PROTECTED
) ==
1701 (IEEE80211_FCTL_FROMDS
| IEEE80211_FTYPE_DATA
)) {
1704 print_summary
= 1; /* print each frame */
1705 else if (priv
->framecnt_to_us
< 100) {
1706 priv
->framecnt_to_us
++;
1709 priv
->framecnt_to_us
= 0;
1714 /* print summary for all other frames */
1718 if (print_summary
) {
1723 title
= "100Frames";
1724 else if (fc
& IEEE80211_FCTL_RETRY
)
1726 else if (ieee80211_is_assoc_response(fc
))
1728 else if (ieee80211_is_reassoc_response(fc
))
1730 else if (ieee80211_is_probe_response(fc
)) {
1732 print_dump
= 1; /* dump frame contents */
1733 } else if (ieee80211_is_beacon(fc
)) {
1735 print_dump
= 1; /* dump frame contents */
1736 } else if (ieee80211_is_atim(fc
))
1738 else if (ieee80211_is_auth(fc
))
1740 else if (ieee80211_is_deauth(fc
))
1742 else if (ieee80211_is_disassoc(fc
))
1747 rate
= iwl3945_rate_index_from_plcp(rate_sym
);
1751 rate
= iwl3945_rates
[rate
].ieee
/ 2;
1753 /* print frame summary.
1754 * MAC addresses show just the last byte (for brevity),
1755 * but you can hack it to show more, if you'd like to. */
1757 IWL_DEBUG_RX("%s: mhd=0x%04x, dst=0x%02x, "
1758 "len=%u, rssi=%d, chnl=%d, rate=%u, \n",
1759 title
, fc
, header
->addr1
[5],
1760 length
, rssi
, channel
, rate
);
1762 /* src/dst addresses assume managed mode */
1763 IWL_DEBUG_RX("%s: 0x%04x, dst=0x%02x, "
1764 "src=0x%02x, rssi=%u, tim=%lu usec, "
1765 "phy=0x%02x, chnl=%d\n",
1766 title
, fc
, header
->addr1
[5],
1767 header
->addr3
[5], rssi
,
1768 tsf_low
- priv
->scan_start_tsf
,
1769 phy_flags
, channel
);
1773 iwl3945_print_hex_dump(IWL_DL_RX
, data
, length
);
1777 static void iwl3945_unset_hw_setting(struct iwl3945_priv
*priv
)
1779 if (priv
->hw_setting
.shared_virt
)
1780 pci_free_consistent(priv
->pci_dev
,
1781 sizeof(struct iwl3945_shared
),
1782 priv
->hw_setting
.shared_virt
,
1783 priv
->hw_setting
.shared_phys
);
1787 * iwl3945_supported_rate_to_ie - fill in the supported rate in IE field
1789 * return : set the bit for each supported rate insert in ie
1791 static u16
iwl3945_supported_rate_to_ie(u8
*ie
, u16 supported_rate
,
1792 u16 basic_rate
, int *left
)
1794 u16 ret_rates
= 0, bit
;
1799 for (bit
= 1, i
= 0; i
< IWL_RATE_COUNT
; i
++, bit
<<= 1) {
1800 if (bit
& supported_rate
) {
1802 rates
[*cnt
] = iwl3945_rates
[i
].ieee
|
1803 ((bit
& basic_rate
) ? 0x80 : 0x00);
1807 (*cnt
>= IWL_SUPPORTED_RATES_IE_LEN
))
1816 * iwl3945_fill_probe_req - fill in all required fields and IE for probe request
1818 static u16
iwl3945_fill_probe_req(struct iwl3945_priv
*priv
,
1819 struct ieee80211_mgmt
*frame
,
1820 int left
, int is_direct
)
1824 u16 active_rates
, ret_rates
, cck_rates
;
1826 /* Make sure there is enough space for the probe request,
1827 * two mandatory IEs and the data */
1833 frame
->frame_control
= cpu_to_le16(IEEE80211_STYPE_PROBE_REQ
);
1834 memcpy(frame
->da
, iwl3945_broadcast_addr
, ETH_ALEN
);
1835 memcpy(frame
->sa
, priv
->mac_addr
, ETH_ALEN
);
1836 memcpy(frame
->bssid
, iwl3945_broadcast_addr
, ETH_ALEN
);
1837 frame
->seq_ctrl
= 0;
1839 /* fill in our indirect SSID IE */
1846 pos
= &(frame
->u
.probe_req
.variable
[0]);
1847 *pos
++ = WLAN_EID_SSID
;
1850 /* fill in our direct SSID IE... */
1853 left
-= 2 + priv
->essid_len
;
1856 /* ... fill it in... */
1857 *pos
++ = WLAN_EID_SSID
;
1858 *pos
++ = priv
->essid_len
;
1859 memcpy(pos
, priv
->essid
, priv
->essid_len
);
1860 pos
+= priv
->essid_len
;
1861 len
+= 2 + priv
->essid_len
;
1864 /* fill in supported rate */
1870 /* ... fill it in... */
1871 *pos
++ = WLAN_EID_SUPP_RATES
;
1874 priv
->active_rate
= priv
->rates_mask
;
1875 active_rates
= priv
->active_rate
;
1876 priv
->active_rate_basic
= priv
->rates_mask
& IWL_BASIC_RATES_MASK
;
1878 cck_rates
= IWL_CCK_RATES_MASK
& active_rates
;
1879 ret_rates
= iwl3945_supported_rate_to_ie(pos
, cck_rates
,
1880 priv
->active_rate_basic
, &left
);
1881 active_rates
&= ~ret_rates
;
1883 ret_rates
= iwl3945_supported_rate_to_ie(pos
, active_rates
,
1884 priv
->active_rate_basic
, &left
);
1885 active_rates
&= ~ret_rates
;
1889 if (active_rates
== 0)
1892 /* fill in supported extended rate */
1897 /* ... fill it in... */
1898 *pos
++ = WLAN_EID_EXT_SUPP_RATES
;
1900 iwl3945_supported_rate_to_ie(pos
, active_rates
,
1901 priv
->active_rate_basic
, &left
);
1912 #ifdef CONFIG_IWL3945_QOS
1913 static int iwl3945_send_qos_params_command(struct iwl3945_priv
*priv
,
1914 struct iwl3945_qosparam_cmd
*qos
)
1917 return iwl3945_send_cmd_pdu(priv
, REPLY_QOS_PARAM
,
1918 sizeof(struct iwl3945_qosparam_cmd
), qos
);
1921 static void iwl3945_reset_qos(struct iwl3945_priv
*priv
)
1927 unsigned long flags
;
1930 spin_lock_irqsave(&priv
->lock
, flags
);
1931 priv
->qos_data
.qos_active
= 0;
1933 if (priv
->iw_mode
== IEEE80211_IF_TYPE_IBSS
) {
1934 if (priv
->qos_data
.qos_enable
)
1935 priv
->qos_data
.qos_active
= 1;
1936 if (!(priv
->active_rate
& 0xfff0)) {
1940 } else if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) {
1941 if (priv
->qos_data
.qos_enable
)
1942 priv
->qos_data
.qos_active
= 1;
1943 } else if (!(priv
->staging_rxon
.flags
& RXON_FLG_SHORT_SLOT_MSK
)) {
1948 if (priv
->qos_data
.qos_active
)
1951 priv
->qos_data
.def_qos_parm
.ac
[0].cw_min
= cpu_to_le16(cw_min
);
1952 priv
->qos_data
.def_qos_parm
.ac
[0].cw_max
= cpu_to_le16(cw_max
);
1953 priv
->qos_data
.def_qos_parm
.ac
[0].aifsn
= aifs
;
1954 priv
->qos_data
.def_qos_parm
.ac
[0].edca_txop
= 0;
1955 priv
->qos_data
.def_qos_parm
.ac
[0].reserved1
= 0;
1957 if (priv
->qos_data
.qos_active
) {
1959 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_min
= cpu_to_le16(cw_min
);
1960 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_max
= cpu_to_le16(cw_max
);
1961 priv
->qos_data
.def_qos_parm
.ac
[i
].aifsn
= 7;
1962 priv
->qos_data
.def_qos_parm
.ac
[i
].edca_txop
= 0;
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) / 2 - 1);
1968 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_max
=
1969 cpu_to_le16(cw_max
);
1970 priv
->qos_data
.def_qos_parm
.ac
[i
].aifsn
= 2;
1972 priv
->qos_data
.def_qos_parm
.ac
[i
].edca_txop
=
1975 priv
->qos_data
.def_qos_parm
.ac
[i
].edca_txop
=
1977 priv
->qos_data
.def_qos_parm
.ac
[i
].reserved1
= 0;
1980 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_min
=
1981 cpu_to_le16((cw_min
+ 1) / 4 - 1);
1982 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_max
=
1983 cpu_to_le16((cw_max
+ 1) / 2 - 1);
1984 priv
->qos_data
.def_qos_parm
.ac
[i
].aifsn
= 2;
1985 priv
->qos_data
.def_qos_parm
.ac
[i
].reserved1
= 0;
1987 priv
->qos_data
.def_qos_parm
.ac
[i
].edca_txop
=
1990 priv
->qos_data
.def_qos_parm
.ac
[i
].edca_txop
=
1993 for (i
= 1; i
< 4; i
++) {
1994 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_min
=
1995 cpu_to_le16(cw_min
);
1996 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_max
=
1997 cpu_to_le16(cw_max
);
1998 priv
->qos_data
.def_qos_parm
.ac
[i
].aifsn
= aifs
;
1999 priv
->qos_data
.def_qos_parm
.ac
[i
].edca_txop
= 0;
2000 priv
->qos_data
.def_qos_parm
.ac
[i
].reserved1
= 0;
2003 IWL_DEBUG_QOS("set QoS to default \n");
2005 spin_unlock_irqrestore(&priv
->lock
, flags
);
2008 static void iwl3945_activate_qos(struct iwl3945_priv
*priv
, u8 force
)
2010 unsigned long flags
;
2012 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
2015 if (!priv
->qos_data
.qos_enable
)
2018 spin_lock_irqsave(&priv
->lock
, flags
);
2019 priv
->qos_data
.def_qos_parm
.qos_flags
= 0;
2021 if (priv
->qos_data
.qos_cap
.q_AP
.queue_request
&&
2022 !priv
->qos_data
.qos_cap
.q_AP
.txop_request
)
2023 priv
->qos_data
.def_qos_parm
.qos_flags
|=
2024 QOS_PARAM_FLG_TXOP_TYPE_MSK
;
2026 if (priv
->qos_data
.qos_active
)
2027 priv
->qos_data
.def_qos_parm
.qos_flags
|=
2028 QOS_PARAM_FLG_UPDATE_EDCA_MSK
;
2030 spin_unlock_irqrestore(&priv
->lock
, flags
);
2032 if (force
|| iwl3945_is_associated(priv
)) {
2033 IWL_DEBUG_QOS("send QoS cmd with Qos active %d \n",
2034 priv
->qos_data
.qos_active
);
2036 iwl3945_send_qos_params_command(priv
,
2037 &(priv
->qos_data
.def_qos_parm
));
2041 #endif /* CONFIG_IWL3945_QOS */
2043 * Power management (not Tx power!) functions
2045 #define MSEC_TO_USEC 1024
2047 #define NOSLP __constant_cpu_to_le32(0)
2048 #define SLP IWL_POWER_DRIVER_ALLOW_SLEEP_MSK
2049 #define SLP_TIMEOUT(T) __constant_cpu_to_le32((T) * MSEC_TO_USEC)
2050 #define SLP_VEC(X0, X1, X2, X3, X4) {__constant_cpu_to_le32(X0), \
2051 __constant_cpu_to_le32(X1), \
2052 __constant_cpu_to_le32(X2), \
2053 __constant_cpu_to_le32(X3), \
2054 __constant_cpu_to_le32(X4)}
2057 /* default power management (not Tx power) table values */
2059 static struct iwl3945_power_vec_entry range_0
[IWL_POWER_AC
] = {
2060 {{NOSLP
, SLP_TIMEOUT(0), SLP_TIMEOUT(0), SLP_VEC(0, 0, 0, 0, 0)}, 0},
2061 {{SLP
, SLP_TIMEOUT(200), SLP_TIMEOUT(500), SLP_VEC(1, 2, 3, 4, 4)}, 0},
2062 {{SLP
, SLP_TIMEOUT(200), SLP_TIMEOUT(300), SLP_VEC(2, 4, 6, 7, 7)}, 0},
2063 {{SLP
, SLP_TIMEOUT(50), SLP_TIMEOUT(100), SLP_VEC(2, 6, 9, 9, 10)}, 0},
2064 {{SLP
, SLP_TIMEOUT(50), SLP_TIMEOUT(25), SLP_VEC(2, 7, 9, 9, 10)}, 1},
2065 {{SLP
, SLP_TIMEOUT(25), SLP_TIMEOUT(25), SLP_VEC(4, 7, 10, 10, 10)}, 1}
2069 static struct iwl3945_power_vec_entry range_1
[IWL_POWER_AC
] = {
2070 {{NOSLP
, SLP_TIMEOUT(0), SLP_TIMEOUT(0), SLP_VEC(0, 0, 0, 0, 0)}, 0},
2071 {{SLP
, SLP_TIMEOUT(200), SLP_TIMEOUT(500),
2072 SLP_VEC(1, 2, 3, 4, 0xFF)}, 0},
2073 {{SLP
, SLP_TIMEOUT(200), SLP_TIMEOUT(300),
2074 SLP_VEC(2, 4, 6, 7, 0xFF)}, 0},
2075 {{SLP
, SLP_TIMEOUT(50), SLP_TIMEOUT(100),
2076 SLP_VEC(2, 6, 9, 9, 0xFF)}, 0},
2077 {{SLP
, SLP_TIMEOUT(50), SLP_TIMEOUT(25), SLP_VEC(2, 7, 9, 9, 0xFF)}, 0},
2078 {{SLP
, SLP_TIMEOUT(25), SLP_TIMEOUT(25),
2079 SLP_VEC(4, 7, 10, 10, 0xFF)}, 0}
2082 int iwl3945_power_init_handle(struct iwl3945_priv
*priv
)
2085 struct iwl3945_power_mgr
*pow_data
;
2086 int size
= sizeof(struct iwl3945_power_vec_entry
) * IWL_POWER_AC
;
2089 IWL_DEBUG_POWER("Initialize power \n");
2091 pow_data
= &(priv
->power_data
);
2093 memset(pow_data
, 0, sizeof(*pow_data
));
2095 pow_data
->active_index
= IWL_POWER_RANGE_0
;
2096 pow_data
->dtim_val
= 0xffff;
2098 memcpy(&pow_data
->pwr_range_0
[0], &range_0
[0], size
);
2099 memcpy(&pow_data
->pwr_range_1
[0], &range_1
[0], size
);
2101 rc
= pci_read_config_word(priv
->pci_dev
, PCI_LINK_CTRL
, &pci_pm
);
2105 struct iwl3945_powertable_cmd
*cmd
;
2107 IWL_DEBUG_POWER("adjust power command flags\n");
2109 for (i
= 0; i
< IWL_POWER_AC
; i
++) {
2110 cmd
= &pow_data
->pwr_range_0
[i
].cmd
;
2113 cmd
->flags
&= ~IWL_POWER_PCI_PM_MSK
;
2115 cmd
->flags
|= IWL_POWER_PCI_PM_MSK
;
2121 static int iwl3945_update_power_cmd(struct iwl3945_priv
*priv
,
2122 struct iwl3945_powertable_cmd
*cmd
, u32 mode
)
2127 struct iwl3945_power_vec_entry
*range
;
2129 struct iwl3945_power_mgr
*pow_data
;
2131 if (mode
> IWL_POWER_INDEX_5
) {
2132 IWL_DEBUG_POWER("Error invalid power mode \n");
2135 pow_data
= &(priv
->power_data
);
2137 if (pow_data
->active_index
== IWL_POWER_RANGE_0
)
2138 range
= &pow_data
->pwr_range_0
[0];
2140 range
= &pow_data
->pwr_range_1
[1];
2142 memcpy(cmd
, &range
[mode
].cmd
, sizeof(struct iwl3945_powertable_cmd
));
2144 #ifdef IWL_MAC80211_DISABLE
2145 if (priv
->assoc_network
!= NULL
) {
2146 unsigned long flags
;
2148 period
= priv
->assoc_network
->tim
.tim_period
;
2150 #endif /*IWL_MAC80211_DISABLE */
2151 skip
= range
[mode
].no_dtim
;
2160 cmd
->flags
&= ~IWL_POWER_SLEEP_OVER_DTIM_MSK
;
2162 __le32 slp_itrvl
= cmd
->sleep_interval
[IWL_POWER_VEC_SIZE
- 1];
2163 max_sleep
= (le32_to_cpu(slp_itrvl
) / period
) * period
;
2164 cmd
->flags
|= IWL_POWER_SLEEP_OVER_DTIM_MSK
;
2167 for (i
= 0; i
< IWL_POWER_VEC_SIZE
; i
++) {
2168 if (le32_to_cpu(cmd
->sleep_interval
[i
]) > max_sleep
)
2169 cmd
->sleep_interval
[i
] = cpu_to_le32(max_sleep
);
2172 IWL_DEBUG_POWER("Flags value = 0x%08X\n", cmd
->flags
);
2173 IWL_DEBUG_POWER("Tx timeout = %u\n", le32_to_cpu(cmd
->tx_data_timeout
));
2174 IWL_DEBUG_POWER("Rx timeout = %u\n", le32_to_cpu(cmd
->rx_data_timeout
));
2175 IWL_DEBUG_POWER("Sleep interval vector = { %d , %d , %d , %d , %d }\n",
2176 le32_to_cpu(cmd
->sleep_interval
[0]),
2177 le32_to_cpu(cmd
->sleep_interval
[1]),
2178 le32_to_cpu(cmd
->sleep_interval
[2]),
2179 le32_to_cpu(cmd
->sleep_interval
[3]),
2180 le32_to_cpu(cmd
->sleep_interval
[4]));
2185 static int iwl3945_send_power_mode(struct iwl3945_priv
*priv
, u32 mode
)
2187 u32
uninitialized_var(final_mode
);
2189 struct iwl3945_powertable_cmd cmd
;
2191 /* If on battery, set to 3,
2192 * if plugged into AC power, set to CAM ("continuously aware mode"),
2193 * else user level */
2195 case IWL_POWER_BATTERY
:
2196 final_mode
= IWL_POWER_INDEX_3
;
2199 final_mode
= IWL_POWER_MODE_CAM
;
2206 iwl3945_update_power_cmd(priv
, &cmd
, final_mode
);
2208 rc
= iwl3945_send_cmd_pdu(priv
, POWER_TABLE_CMD
, sizeof(cmd
), &cmd
);
2210 if (final_mode
== IWL_POWER_MODE_CAM
)
2211 clear_bit(STATUS_POWER_PMI
, &priv
->status
);
2213 set_bit(STATUS_POWER_PMI
, &priv
->status
);
2218 int iwl3945_is_network_packet(struct iwl3945_priv
*priv
, struct ieee80211_hdr
*header
)
2220 /* Filter incoming packets to determine if they are targeted toward
2221 * this network, discarding packets coming from ourselves */
2222 switch (priv
->iw_mode
) {
2223 case IEEE80211_IF_TYPE_IBSS
: /* Header: Dest. | Source | BSSID */
2224 /* packets from our adapter are dropped (echo) */
2225 if (!compare_ether_addr(header
->addr2
, priv
->mac_addr
))
2227 /* {broad,multi}cast packets to our IBSS go through */
2228 if (is_multicast_ether_addr(header
->addr1
))
2229 return !compare_ether_addr(header
->addr3
, priv
->bssid
);
2230 /* packets to our adapter go through */
2231 return !compare_ether_addr(header
->addr1
, priv
->mac_addr
);
2232 case IEEE80211_IF_TYPE_STA
: /* Header: Dest. | AP{BSSID} | Source */
2233 /* packets from our adapter are dropped (echo) */
2234 if (!compare_ether_addr(header
->addr3
, priv
->mac_addr
))
2236 /* {broad,multi}cast packets to our BSS go through */
2237 if (is_multicast_ether_addr(header
->addr1
))
2238 return !compare_ether_addr(header
->addr2
, priv
->bssid
);
2239 /* packets to our adapter go through */
2240 return !compare_ether_addr(header
->addr1
, priv
->mac_addr
);
2246 #define TX_STATUS_ENTRY(x) case TX_STATUS_FAIL_ ## x: return #x
2248 static const char *iwl3945_get_tx_fail_reason(u32 status
)
2250 switch (status
& TX_STATUS_MSK
) {
2251 case TX_STATUS_SUCCESS
:
2253 TX_STATUS_ENTRY(SHORT_LIMIT
);
2254 TX_STATUS_ENTRY(LONG_LIMIT
);
2255 TX_STATUS_ENTRY(FIFO_UNDERRUN
);
2256 TX_STATUS_ENTRY(MGMNT_ABORT
);
2257 TX_STATUS_ENTRY(NEXT_FRAG
);
2258 TX_STATUS_ENTRY(LIFE_EXPIRE
);
2259 TX_STATUS_ENTRY(DEST_PS
);
2260 TX_STATUS_ENTRY(ABORTED
);
2261 TX_STATUS_ENTRY(BT_RETRY
);
2262 TX_STATUS_ENTRY(STA_INVALID
);
2263 TX_STATUS_ENTRY(FRAG_DROPPED
);
2264 TX_STATUS_ENTRY(TID_DISABLE
);
2265 TX_STATUS_ENTRY(FRAME_FLUSHED
);
2266 TX_STATUS_ENTRY(INSUFFICIENT_CF_POLL
);
2267 TX_STATUS_ENTRY(TX_LOCKED
);
2268 TX_STATUS_ENTRY(NO_BEACON_ON_RADAR
);
2275 * iwl3945_scan_cancel - Cancel any currently executing HW scan
2277 * NOTE: priv->mutex is not required before calling this function
2279 static int iwl3945_scan_cancel(struct iwl3945_priv
*priv
)
2281 if (!test_bit(STATUS_SCAN_HW
, &priv
->status
)) {
2282 clear_bit(STATUS_SCANNING
, &priv
->status
);
2286 if (test_bit(STATUS_SCANNING
, &priv
->status
)) {
2287 if (!test_bit(STATUS_SCAN_ABORTING
, &priv
->status
)) {
2288 IWL_DEBUG_SCAN("Queuing scan abort.\n");
2289 set_bit(STATUS_SCAN_ABORTING
, &priv
->status
);
2290 queue_work(priv
->workqueue
, &priv
->abort_scan
);
2293 IWL_DEBUG_SCAN("Scan abort already in progress.\n");
2295 return test_bit(STATUS_SCANNING
, &priv
->status
);
2302 * iwl3945_scan_cancel_timeout - Cancel any currently executing HW scan
2303 * @ms: amount of time to wait (in milliseconds) for scan to abort
2305 * NOTE: priv->mutex must be held before calling this function
2307 static int iwl3945_scan_cancel_timeout(struct iwl3945_priv
*priv
, unsigned long ms
)
2309 unsigned long now
= jiffies
;
2312 ret
= iwl3945_scan_cancel(priv
);
2314 mutex_unlock(&priv
->mutex
);
2315 while (!time_after(jiffies
, now
+ msecs_to_jiffies(ms
)) &&
2316 test_bit(STATUS_SCANNING
, &priv
->status
))
2318 mutex_lock(&priv
->mutex
);
2320 return test_bit(STATUS_SCANNING
, &priv
->status
);
2326 static void iwl3945_sequence_reset(struct iwl3945_priv
*priv
)
2328 /* Reset ieee stats */
2330 /* We don't reset the net_device_stats (ieee->stats) on
2333 priv
->last_seq_num
= -1;
2334 priv
->last_frag_num
= -1;
2335 priv
->last_packet_time
= 0;
2337 iwl3945_scan_cancel(priv
);
2340 #define MAX_UCODE_BEACON_INTERVAL 1024
2341 #define INTEL_CONN_LISTEN_INTERVAL __constant_cpu_to_le16(0xA)
2343 static __le16
iwl3945_adjust_beacon_interval(u16 beacon_val
)
2346 u16 beacon_factor
= 0;
2349 (beacon_val
+ MAX_UCODE_BEACON_INTERVAL
)
2350 / MAX_UCODE_BEACON_INTERVAL
;
2351 new_val
= beacon_val
/ beacon_factor
;
2353 return cpu_to_le16(new_val
);
2356 static void iwl3945_setup_rxon_timing(struct iwl3945_priv
*priv
)
2358 u64 interval_tm_unit
;
2360 unsigned long flags
;
2361 struct ieee80211_conf
*conf
= NULL
;
2364 conf
= ieee80211_get_hw_conf(priv
->hw
);
2366 spin_lock_irqsave(&priv
->lock
, flags
);
2367 priv
->rxon_timing
.timestamp
.dw
[1] = cpu_to_le32(priv
->timestamp1
);
2368 priv
->rxon_timing
.timestamp
.dw
[0] = cpu_to_le32(priv
->timestamp0
);
2370 priv
->rxon_timing
.listen_interval
= INTEL_CONN_LISTEN_INTERVAL
;
2372 tsf
= priv
->timestamp1
;
2373 tsf
= ((tsf
<< 32) | priv
->timestamp0
);
2375 beacon_int
= priv
->beacon_int
;
2376 spin_unlock_irqrestore(&priv
->lock
, flags
);
2378 if (priv
->iw_mode
== IEEE80211_IF_TYPE_STA
) {
2379 if (beacon_int
== 0) {
2380 priv
->rxon_timing
.beacon_interval
= cpu_to_le16(100);
2381 priv
->rxon_timing
.beacon_init_val
= cpu_to_le32(102400);
2383 priv
->rxon_timing
.beacon_interval
=
2384 cpu_to_le16(beacon_int
);
2385 priv
->rxon_timing
.beacon_interval
=
2386 iwl3945_adjust_beacon_interval(
2387 le16_to_cpu(priv
->rxon_timing
.beacon_interval
));
2390 priv
->rxon_timing
.atim_window
= 0;
2392 priv
->rxon_timing
.beacon_interval
=
2393 iwl3945_adjust_beacon_interval(conf
->beacon_int
);
2394 /* TODO: we need to get atim_window from upper stack
2395 * for now we set to 0 */
2396 priv
->rxon_timing
.atim_window
= 0;
2400 (le16_to_cpu(priv
->rxon_timing
.beacon_interval
) * 1024);
2401 result
= do_div(tsf
, interval_tm_unit
);
2402 priv
->rxon_timing
.beacon_init_val
=
2403 cpu_to_le32((u32
) ((u64
) interval_tm_unit
- result
));
2406 ("beacon interval %d beacon timer %d beacon tim %d\n",
2407 le16_to_cpu(priv
->rxon_timing
.beacon_interval
),
2408 le32_to_cpu(priv
->rxon_timing
.beacon_init_val
),
2409 le16_to_cpu(priv
->rxon_timing
.atim_window
));
2412 static int iwl3945_scan_initiate(struct iwl3945_priv
*priv
)
2414 if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) {
2415 IWL_ERROR("APs don't scan.\n");
2419 if (!iwl3945_is_ready_rf(priv
)) {
2420 IWL_DEBUG_SCAN("Aborting scan due to not ready.\n");
2424 if (test_bit(STATUS_SCANNING
, &priv
->status
)) {
2425 IWL_DEBUG_SCAN("Scan already in progress.\n");
2429 if (test_bit(STATUS_SCAN_ABORTING
, &priv
->status
)) {
2430 IWL_DEBUG_SCAN("Scan request while abort pending. "
2435 IWL_DEBUG_INFO("Starting scan...\n");
2436 priv
->scan_bands
= 2;
2437 set_bit(STATUS_SCANNING
, &priv
->status
);
2438 priv
->scan_start
= jiffies
;
2439 priv
->scan_pass_start
= priv
->scan_start
;
2441 queue_work(priv
->workqueue
, &priv
->request_scan
);
2446 static int iwl3945_set_rxon_hwcrypto(struct iwl3945_priv
*priv
, int hw_decrypt
)
2448 struct iwl3945_rxon_cmd
*rxon
= &priv
->staging_rxon
;
2451 rxon
->filter_flags
&= ~RXON_FILTER_DIS_DECRYPT_MSK
;
2453 rxon
->filter_flags
|= RXON_FILTER_DIS_DECRYPT_MSK
;
2458 static void iwl3945_set_flags_for_phymode(struct iwl3945_priv
*priv
, u8 phymode
)
2460 if (phymode
== MODE_IEEE80211A
) {
2461 priv
->staging_rxon
.flags
&=
2462 ~(RXON_FLG_BAND_24G_MSK
| RXON_FLG_AUTO_DETECT_MSK
2463 | RXON_FLG_CCK_MSK
);
2464 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_SLOT_MSK
;
2466 /* Copied from iwl3945_bg_post_associate() */
2467 if (priv
->assoc_capability
& WLAN_CAPABILITY_SHORT_SLOT_TIME
)
2468 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_SLOT_MSK
;
2470 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_SLOT_MSK
;
2472 if (priv
->iw_mode
== IEEE80211_IF_TYPE_IBSS
)
2473 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_SLOT_MSK
;
2475 priv
->staging_rxon
.flags
|= RXON_FLG_BAND_24G_MSK
;
2476 priv
->staging_rxon
.flags
|= RXON_FLG_AUTO_DETECT_MSK
;
2477 priv
->staging_rxon
.flags
&= ~RXON_FLG_CCK_MSK
;
2482 * initialize rxon structure with default values from eeprom
2484 static void iwl3945_connection_init_rx_config(struct iwl3945_priv
*priv
)
2486 const struct iwl3945_channel_info
*ch_info
;
2488 memset(&priv
->staging_rxon
, 0, sizeof(priv
->staging_rxon
));
2490 switch (priv
->iw_mode
) {
2491 case IEEE80211_IF_TYPE_AP
:
2492 priv
->staging_rxon
.dev_type
= RXON_DEV_TYPE_AP
;
2495 case IEEE80211_IF_TYPE_STA
:
2496 priv
->staging_rxon
.dev_type
= RXON_DEV_TYPE_ESS
;
2497 priv
->staging_rxon
.filter_flags
= RXON_FILTER_ACCEPT_GRP_MSK
;
2500 case IEEE80211_IF_TYPE_IBSS
:
2501 priv
->staging_rxon
.dev_type
= RXON_DEV_TYPE_IBSS
;
2502 priv
->staging_rxon
.flags
= RXON_FLG_SHORT_PREAMBLE_MSK
;
2503 priv
->staging_rxon
.filter_flags
= RXON_FILTER_BCON_AWARE_MSK
|
2504 RXON_FILTER_ACCEPT_GRP_MSK
;
2507 case IEEE80211_IF_TYPE_MNTR
:
2508 priv
->staging_rxon
.dev_type
= RXON_DEV_TYPE_SNIFFER
;
2509 priv
->staging_rxon
.filter_flags
= RXON_FILTER_PROMISC_MSK
|
2510 RXON_FILTER_CTL2HOST_MSK
| RXON_FILTER_ACCEPT_GRP_MSK
;
2515 /* TODO: Figure out when short_preamble would be set and cache from
2517 if (!hw_to_local(priv
->hw
)->short_preamble
)
2518 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_PREAMBLE_MSK
;
2520 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_PREAMBLE_MSK
;
2523 ch_info
= iwl3945_get_channel_info(priv
, priv
->phymode
,
2524 le16_to_cpu(priv
->staging_rxon
.channel
));
2527 ch_info
= &priv
->channel_info
[0];
2530 * in some case A channels are all non IBSS
2531 * in this case force B/G channel
2533 if ((priv
->iw_mode
== IEEE80211_IF_TYPE_IBSS
) &&
2534 !(is_channel_ibss(ch_info
)))
2535 ch_info
= &priv
->channel_info
[0];
2537 priv
->staging_rxon
.channel
= cpu_to_le16(ch_info
->channel
);
2538 if (is_channel_a_band(ch_info
))
2539 priv
->phymode
= MODE_IEEE80211A
;
2541 priv
->phymode
= MODE_IEEE80211G
;
2543 iwl3945_set_flags_for_phymode(priv
, priv
->phymode
);
2545 priv
->staging_rxon
.ofdm_basic_rates
=
2546 (IWL_OFDM_RATES_MASK
>> IWL_FIRST_OFDM_RATE
) & 0xFF;
2547 priv
->staging_rxon
.cck_basic_rates
=
2548 (IWL_CCK_RATES_MASK
>> IWL_FIRST_CCK_RATE
) & 0xF;
2551 static int iwl3945_set_mode(struct iwl3945_priv
*priv
, int mode
)
2553 if (mode
== IEEE80211_IF_TYPE_IBSS
) {
2554 const struct iwl3945_channel_info
*ch_info
;
2556 ch_info
= iwl3945_get_channel_info(priv
,
2558 le16_to_cpu(priv
->staging_rxon
.channel
));
2560 if (!ch_info
|| !is_channel_ibss(ch_info
)) {
2561 IWL_ERROR("channel %d not IBSS channel\n",
2562 le16_to_cpu(priv
->staging_rxon
.channel
));
2567 priv
->iw_mode
= mode
;
2569 iwl3945_connection_init_rx_config(priv
);
2570 memcpy(priv
->staging_rxon
.node_addr
, priv
->mac_addr
, ETH_ALEN
);
2572 iwl3945_clear_stations_table(priv
);
2574 /* dont commit rxon if rf-kill is on*/
2575 if (!iwl3945_is_ready_rf(priv
))
2578 cancel_delayed_work(&priv
->scan_check
);
2579 if (iwl3945_scan_cancel_timeout(priv
, 100)) {
2580 IWL_WARNING("Aborted scan still in progress after 100ms\n");
2581 IWL_DEBUG_MAC80211("leaving - scan abort failed.\n");
2585 iwl3945_commit_rxon(priv
);
2590 static void iwl3945_build_tx_cmd_hwcrypto(struct iwl3945_priv
*priv
,
2591 struct ieee80211_tx_control
*ctl
,
2592 struct iwl3945_cmd
*cmd
,
2593 struct sk_buff
*skb_frag
,
2596 struct iwl3945_hw_key
*keyinfo
= &priv
->stations
[ctl
->key_idx
].keyinfo
;
2598 switch (keyinfo
->alg
) {
2600 cmd
->cmd
.tx
.sec_ctl
= TX_CMD_SEC_CCM
;
2601 memcpy(cmd
->cmd
.tx
.key
, keyinfo
->key
, keyinfo
->keylen
);
2602 IWL_DEBUG_TX("tx_cmd with aes hwcrypto\n");
2607 cmd
->cmd
.tx
.sec_ctl
= TX_CMD_SEC_TKIP
;
2610 memcpy(cmd
->cmd
.tx
.tkip_mic
.byte
, skb_frag
->tail
- 8,
2613 memset(cmd
->cmd
.tx
.tkip_mic
.byte
, 0, 8);
2618 cmd
->cmd
.tx
.sec_ctl
= TX_CMD_SEC_WEP
|
2619 (ctl
->key_idx
& TX_CMD_SEC_MSK
) << TX_CMD_SEC_SHIFT
;
2621 if (keyinfo
->keylen
== 13)
2622 cmd
->cmd
.tx
.sec_ctl
|= TX_CMD_SEC_KEY128
;
2624 memcpy(&cmd
->cmd
.tx
.key
[3], keyinfo
->key
, keyinfo
->keylen
);
2626 IWL_DEBUG_TX("Configuring packet for WEP encryption "
2627 "with key %d\n", ctl
->key_idx
);
2631 printk(KERN_ERR
"Unknown encode alg %d\n", keyinfo
->alg
);
2637 * handle build REPLY_TX command notification.
2639 static void iwl3945_build_tx_cmd_basic(struct iwl3945_priv
*priv
,
2640 struct iwl3945_cmd
*cmd
,
2641 struct ieee80211_tx_control
*ctrl
,
2642 struct ieee80211_hdr
*hdr
,
2643 int is_unicast
, u8 std_id
)
2646 u16 fc
= le16_to_cpu(hdr
->frame_control
);
2647 __le32 tx_flags
= cmd
->cmd
.tx
.tx_flags
;
2649 cmd
->cmd
.tx
.stop_time
.life_time
= TX_CMD_LIFE_TIME_INFINITE
;
2650 if (!(ctrl
->flags
& IEEE80211_TXCTL_NO_ACK
)) {
2651 tx_flags
|= TX_CMD_FLG_ACK_MSK
;
2652 if ((fc
& IEEE80211_FCTL_FTYPE
) == IEEE80211_FTYPE_MGMT
)
2653 tx_flags
|= TX_CMD_FLG_SEQ_CTL_MSK
;
2654 if (ieee80211_is_probe_response(fc
) &&
2655 !(le16_to_cpu(hdr
->seq_ctrl
) & 0xf))
2656 tx_flags
|= TX_CMD_FLG_TSF_MSK
;
2658 tx_flags
&= (~TX_CMD_FLG_ACK_MSK
);
2659 tx_flags
|= TX_CMD_FLG_SEQ_CTL_MSK
;
2662 cmd
->cmd
.tx
.sta_id
= std_id
;
2663 if (ieee80211_get_morefrag(hdr
))
2664 tx_flags
|= TX_CMD_FLG_MORE_FRAG_MSK
;
2666 qc
= ieee80211_get_qos_ctrl(hdr
);
2668 cmd
->cmd
.tx
.tid_tspec
= (u8
) (le16_to_cpu(*qc
) & 0xf);
2669 tx_flags
&= ~TX_CMD_FLG_SEQ_CTL_MSK
;
2671 tx_flags
|= TX_CMD_FLG_SEQ_CTL_MSK
;
2673 if (ctrl
->flags
& IEEE80211_TXCTL_USE_RTS_CTS
) {
2674 tx_flags
|= TX_CMD_FLG_RTS_MSK
;
2675 tx_flags
&= ~TX_CMD_FLG_CTS_MSK
;
2676 } else if (ctrl
->flags
& IEEE80211_TXCTL_USE_CTS_PROTECT
) {
2677 tx_flags
&= ~TX_CMD_FLG_RTS_MSK
;
2678 tx_flags
|= TX_CMD_FLG_CTS_MSK
;
2681 if ((tx_flags
& TX_CMD_FLG_RTS_MSK
) || (tx_flags
& TX_CMD_FLG_CTS_MSK
))
2682 tx_flags
|= TX_CMD_FLG_FULL_TXOP_PROT_MSK
;
2684 tx_flags
&= ~(TX_CMD_FLG_ANT_SEL_MSK
);
2685 if ((fc
& IEEE80211_FCTL_FTYPE
) == IEEE80211_FTYPE_MGMT
) {
2686 if ((fc
& IEEE80211_FCTL_STYPE
) == IEEE80211_STYPE_ASSOC_REQ
||
2687 (fc
& IEEE80211_FCTL_STYPE
) == IEEE80211_STYPE_REASSOC_REQ
)
2688 cmd
->cmd
.tx
.timeout
.pm_frame_timeout
= cpu_to_le16(3);
2690 cmd
->cmd
.tx
.timeout
.pm_frame_timeout
= cpu_to_le16(2);
2692 cmd
->cmd
.tx
.timeout
.pm_frame_timeout
= 0;
2694 cmd
->cmd
.tx
.driver_txop
= 0;
2695 cmd
->cmd
.tx
.tx_flags
= tx_flags
;
2696 cmd
->cmd
.tx
.next_frame_len
= 0;
2700 * iwl3945_get_sta_id - Find station's index within station table
2702 static int iwl3945_get_sta_id(struct iwl3945_priv
*priv
, struct ieee80211_hdr
*hdr
)
2705 u16 fc
= le16_to_cpu(hdr
->frame_control
);
2707 /* If this frame is broadcast or management, use broadcast station id */
2708 if (((fc
& IEEE80211_FCTL_FTYPE
) != IEEE80211_FTYPE_DATA
) ||
2709 is_multicast_ether_addr(hdr
->addr1
))
2710 return priv
->hw_setting
.bcast_sta_id
;
2712 switch (priv
->iw_mode
) {
2714 /* If we are a client station in a BSS network, use the special
2715 * AP station entry (that's the only station we communicate with) */
2716 case IEEE80211_IF_TYPE_STA
:
2719 /* If we are an AP, then find the station, or use BCAST */
2720 case IEEE80211_IF_TYPE_AP
:
2721 sta_id
= iwl3945_hw_find_station(priv
, hdr
->addr1
);
2722 if (sta_id
!= IWL_INVALID_STATION
)
2724 return priv
->hw_setting
.bcast_sta_id
;
2726 /* If this frame is going out to an IBSS network, find the station,
2727 * or create a new station table entry */
2728 case IEEE80211_IF_TYPE_IBSS
: {
2729 DECLARE_MAC_BUF(mac
);
2731 /* Create new station table entry */
2732 sta_id
= iwl3945_hw_find_station(priv
, hdr
->addr1
);
2733 if (sta_id
!= IWL_INVALID_STATION
)
2736 sta_id
= iwl3945_add_station(priv
, hdr
->addr1
, 0, CMD_ASYNC
);
2738 if (sta_id
!= IWL_INVALID_STATION
)
2741 IWL_DEBUG_DROP("Station %s not in station map. "
2742 "Defaulting to broadcast...\n",
2743 print_mac(mac
, hdr
->addr1
));
2744 iwl3945_print_hex_dump(IWL_DL_DROP
, (u8
*) hdr
, sizeof(*hdr
));
2745 return priv
->hw_setting
.bcast_sta_id
;
2748 IWL_WARNING("Unknown mode of operation: %d", priv
->iw_mode
);
2749 return priv
->hw_setting
.bcast_sta_id
;
2754 * start REPLY_TX command process
2756 static int iwl3945_tx_skb(struct iwl3945_priv
*priv
,
2757 struct sk_buff
*skb
, struct ieee80211_tx_control
*ctl
)
2759 struct ieee80211_hdr
*hdr
= (struct ieee80211_hdr
*)skb
->data
;
2760 struct iwl3945_tfd_frame
*tfd
;
2762 int txq_id
= ctl
->queue
;
2763 struct iwl3945_tx_queue
*txq
= NULL
;
2764 struct iwl3945_queue
*q
= NULL
;
2765 dma_addr_t phys_addr
;
2766 dma_addr_t txcmd_phys
;
2767 struct iwl3945_cmd
*out_cmd
= NULL
;
2768 u16 len
, idx
, len_org
;
2769 u8 id
, hdr_len
, unicast
;
2774 u8 wait_write_ptr
= 0;
2775 unsigned long flags
;
2778 spin_lock_irqsave(&priv
->lock
, flags
);
2779 if (iwl3945_is_rfkill(priv
)) {
2780 IWL_DEBUG_DROP("Dropping - RF KILL\n");
2785 IWL_DEBUG_DROP("Dropping - !priv->vif\n");
2789 if ((ctl
->tx_rate
& 0xFF) == IWL_INVALID_RATE
) {
2790 IWL_ERROR("ERROR: No TX rate available.\n");
2794 unicast
= !is_multicast_ether_addr(hdr
->addr1
);
2797 fc
= le16_to_cpu(hdr
->frame_control
);
2799 #ifdef CONFIG_IWL3945_DEBUG
2800 if (ieee80211_is_auth(fc
))
2801 IWL_DEBUG_TX("Sending AUTH frame\n");
2802 else if (ieee80211_is_assoc_request(fc
))
2803 IWL_DEBUG_TX("Sending ASSOC frame\n");
2804 else if (ieee80211_is_reassoc_request(fc
))
2805 IWL_DEBUG_TX("Sending REASSOC frame\n");
2808 /* drop all data frame if we are not associated */
2809 if ((!iwl3945_is_associated(priv
) || !priv
->assoc_id
) &&
2810 ((fc
& IEEE80211_FCTL_FTYPE
) == IEEE80211_FTYPE_DATA
)) {
2811 IWL_DEBUG_DROP("Dropping - !iwl3945_is_associated\n");
2815 spin_unlock_irqrestore(&priv
->lock
, flags
);
2817 hdr_len
= ieee80211_get_hdrlen(fc
);
2819 /* Find (or create) index into station table for destination station */
2820 sta_id
= iwl3945_get_sta_id(priv
, hdr
);
2821 if (sta_id
== IWL_INVALID_STATION
) {
2822 DECLARE_MAC_BUF(mac
);
2824 IWL_DEBUG_DROP("Dropping - INVALID STATION: %s\n",
2825 print_mac(mac
, hdr
->addr1
));
2829 IWL_DEBUG_RATE("station Id %d\n", sta_id
);
2831 qc
= ieee80211_get_qos_ctrl(hdr
);
2833 u8 tid
= (u8
)(le16_to_cpu(*qc
) & 0xf);
2834 seq_number
= priv
->stations
[sta_id
].tid
[tid
].seq_number
&
2836 hdr
->seq_ctrl
= cpu_to_le16(seq_number
) |
2838 __constant_cpu_to_le16(IEEE80211_SCTL_FRAG
));
2842 /* Descriptor for chosen Tx queue */
2843 txq
= &priv
->txq
[txq_id
];
2846 spin_lock_irqsave(&priv
->lock
, flags
);
2848 /* Set up first empty TFD within this queue's circular TFD buffer */
2849 tfd
= &txq
->bd
[q
->write_ptr
];
2850 memset(tfd
, 0, sizeof(*tfd
));
2851 control_flags
= (u32
*) tfd
;
2852 idx
= get_cmd_index(q
, q
->write_ptr
, 0);
2854 /* Set up driver data for this TFD */
2855 memset(&(txq
->txb
[q
->write_ptr
]), 0, sizeof(struct iwl3945_tx_info
));
2856 txq
->txb
[q
->write_ptr
].skb
[0] = skb
;
2857 memcpy(&(txq
->txb
[q
->write_ptr
].status
.control
),
2858 ctl
, sizeof(struct ieee80211_tx_control
));
2860 /* Init first empty entry in queue's array of Tx/cmd buffers */
2861 out_cmd
= &txq
->cmd
[idx
];
2862 memset(&out_cmd
->hdr
, 0, sizeof(out_cmd
->hdr
));
2863 memset(&out_cmd
->cmd
.tx
, 0, sizeof(out_cmd
->cmd
.tx
));
2866 * Set up the Tx-command (not MAC!) header.
2867 * Store the chosen Tx queue and TFD index within the sequence field;
2868 * after Tx, uCode's Tx response will return this value so driver can
2869 * locate the frame within the tx queue and do post-tx processing.
2871 out_cmd
->hdr
.cmd
= REPLY_TX
;
2872 out_cmd
->hdr
.sequence
= cpu_to_le16((u16
)(QUEUE_TO_SEQ(txq_id
) |
2873 INDEX_TO_SEQ(q
->write_ptr
)));
2875 /* Copy MAC header from skb into command buffer */
2876 memcpy(out_cmd
->cmd
.tx
.hdr
, hdr
, hdr_len
);
2879 * Use the first empty entry in this queue's command buffer array
2880 * to contain the Tx command and MAC header concatenated together
2881 * (payload data will be in another buffer).
2882 * Size of this varies, due to varying MAC header length.
2883 * If end is not dword aligned, we'll have 2 extra bytes at the end
2884 * of the MAC header (device reads on dword boundaries).
2885 * We'll tell device about this padding later.
2887 len
= priv
->hw_setting
.tx_cmd_len
+
2888 sizeof(struct iwl3945_cmd_header
) + hdr_len
;
2891 len
= (len
+ 3) & ~3;
2898 /* Physical address of this Tx command's header (not MAC header!),
2899 * within command buffer array. */
2900 txcmd_phys
= txq
->dma_addr_cmd
+ sizeof(struct iwl3945_cmd
) * idx
+
2901 offsetof(struct iwl3945_cmd
, hdr
);
2903 /* Add buffer containing Tx command and MAC(!) header to TFD's
2905 iwl3945_hw_txq_attach_buf_to_tfd(priv
, tfd
, txcmd_phys
, len
);
2907 if (!(ctl
->flags
& IEEE80211_TXCTL_DO_NOT_ENCRYPT
))
2908 iwl3945_build_tx_cmd_hwcrypto(priv
, ctl
, out_cmd
, skb
, 0);
2910 /* Set up TFD's 2nd entry to point directly to remainder of skb,
2911 * if any (802.11 null frames have no payload). */
2912 len
= skb
->len
- hdr_len
;
2914 phys_addr
= pci_map_single(priv
->pci_dev
, skb
->data
+ hdr_len
,
2915 len
, PCI_DMA_TODEVICE
);
2916 iwl3945_hw_txq_attach_buf_to_tfd(priv
, tfd
, phys_addr
, len
);
2920 /* If there is no payload, then we use only one Tx buffer */
2921 *control_flags
= TFD_CTL_COUNT_SET(1);
2923 /* Else use 2 buffers.
2924 * Tell 3945 about any padding after MAC header */
2925 *control_flags
= TFD_CTL_COUNT_SET(2) |
2926 TFD_CTL_PAD_SET(U32_PAD(len
));
2928 /* Total # bytes to be transmitted */
2929 len
= (u16
)skb
->len
;
2930 out_cmd
->cmd
.tx
.len
= cpu_to_le16(len
);
2932 /* TODO need this for burst mode later on */
2933 iwl3945_build_tx_cmd_basic(priv
, out_cmd
, ctl
, hdr
, unicast
, sta_id
);
2935 /* set is_hcca to 0; it probably will never be implemented */
2936 iwl3945_hw_build_tx_cmd_rate(priv
, out_cmd
, ctl
, hdr
, sta_id
, 0);
2938 out_cmd
->cmd
.tx
.tx_flags
&= ~TX_CMD_FLG_ANT_A_MSK
;
2939 out_cmd
->cmd
.tx
.tx_flags
&= ~TX_CMD_FLG_ANT_B_MSK
;
2941 if (!ieee80211_get_morefrag(hdr
)) {
2942 txq
->need_update
= 1;
2944 u8 tid
= (u8
)(le16_to_cpu(*qc
) & 0xf);
2945 priv
->stations
[sta_id
].tid
[tid
].seq_number
= seq_number
;
2949 txq
->need_update
= 0;
2952 iwl3945_print_hex_dump(IWL_DL_TX
, out_cmd
->cmd
.payload
,
2953 sizeof(out_cmd
->cmd
.tx
));
2955 iwl3945_print_hex_dump(IWL_DL_TX
, (u8
*)out_cmd
->cmd
.tx
.hdr
,
2956 ieee80211_get_hdrlen(fc
));
2958 /* Tell device the write index *just past* this latest filled TFD */
2959 q
->write_ptr
= iwl3945_queue_inc_wrap(q
->write_ptr
, q
->n_bd
);
2960 rc
= iwl3945_tx_queue_update_write_ptr(priv
, txq
);
2961 spin_unlock_irqrestore(&priv
->lock
, flags
);
2966 if ((iwl3945_queue_space(q
) < q
->high_mark
)
2967 && priv
->mac80211_registered
) {
2968 if (wait_write_ptr
) {
2969 spin_lock_irqsave(&priv
->lock
, flags
);
2970 txq
->need_update
= 1;
2971 iwl3945_tx_queue_update_write_ptr(priv
, txq
);
2972 spin_unlock_irqrestore(&priv
->lock
, flags
);
2975 ieee80211_stop_queue(priv
->hw
, ctl
->queue
);
2981 spin_unlock_irqrestore(&priv
->lock
, flags
);
2986 static void iwl3945_set_rate(struct iwl3945_priv
*priv
)
2988 const struct ieee80211_hw_mode
*hw
= NULL
;
2989 struct ieee80211_rate
*rate
;
2992 hw
= iwl3945_get_hw_mode(priv
, priv
->phymode
);
2994 IWL_ERROR("Failed to set rate: unable to get hw mode\n");
2998 priv
->active_rate
= 0;
2999 priv
->active_rate_basic
= 0;
3001 IWL_DEBUG_RATE("Setting rates for 802.11%c\n",
3002 hw
->mode
== MODE_IEEE80211A
?
3003 'a' : ((hw
->mode
== MODE_IEEE80211B
) ? 'b' : 'g'));
3005 for (i
= 0; i
< hw
->num_rates
; i
++) {
3006 rate
= &(hw
->rates
[i
]);
3007 if ((rate
->val
< IWL_RATE_COUNT
) &&
3008 (rate
->flags
& IEEE80211_RATE_SUPPORTED
)) {
3009 IWL_DEBUG_RATE("Adding rate index %d (plcp %d)%s\n",
3010 rate
->val
, iwl3945_rates
[rate
->val
].plcp
,
3011 (rate
->flags
& IEEE80211_RATE_BASIC
) ?
3013 priv
->active_rate
|= (1 << rate
->val
);
3014 if (rate
->flags
& IEEE80211_RATE_BASIC
)
3015 priv
->active_rate_basic
|= (1 << rate
->val
);
3017 IWL_DEBUG_RATE("Not adding rate %d (plcp %d)\n",
3018 rate
->val
, iwl3945_rates
[rate
->val
].plcp
);
3021 IWL_DEBUG_RATE("Set active_rate = %0x, active_rate_basic = %0x\n",
3022 priv
->active_rate
, priv
->active_rate_basic
);
3025 * If a basic rate is configured, then use it (adding IWL_RATE_1M_MASK)
3026 * otherwise set it to the default of all CCK rates and 6, 12, 24 for
3029 if (priv
->active_rate_basic
& IWL_CCK_BASIC_RATES_MASK
)
3030 priv
->staging_rxon
.cck_basic_rates
=
3031 ((priv
->active_rate_basic
&
3032 IWL_CCK_RATES_MASK
) >> IWL_FIRST_CCK_RATE
) & 0xF;
3034 priv
->staging_rxon
.cck_basic_rates
=
3035 (IWL_CCK_BASIC_RATES_MASK
>> IWL_FIRST_CCK_RATE
) & 0xF;
3037 if (priv
->active_rate_basic
& IWL_OFDM_BASIC_RATES_MASK
)
3038 priv
->staging_rxon
.ofdm_basic_rates
=
3039 ((priv
->active_rate_basic
&
3040 (IWL_OFDM_BASIC_RATES_MASK
| IWL_RATE_6M_MASK
)) >>
3041 IWL_FIRST_OFDM_RATE
) & 0xFF;
3043 priv
->staging_rxon
.ofdm_basic_rates
=
3044 (IWL_OFDM_BASIC_RATES_MASK
>> IWL_FIRST_OFDM_RATE
) & 0xFF;
3047 static void iwl3945_radio_kill_sw(struct iwl3945_priv
*priv
, int disable_radio
)
3049 unsigned long flags
;
3051 if (!!disable_radio
== test_bit(STATUS_RF_KILL_SW
, &priv
->status
))
3054 IWL_DEBUG_RF_KILL("Manual SW RF KILL set to: RADIO %s\n",
3055 disable_radio
? "OFF" : "ON");
3057 if (disable_radio
) {
3058 iwl3945_scan_cancel(priv
);
3059 /* FIXME: This is a workaround for AP */
3060 if (priv
->iw_mode
!= IEEE80211_IF_TYPE_AP
) {
3061 spin_lock_irqsave(&priv
->lock
, flags
);
3062 iwl3945_write32(priv
, CSR_UCODE_DRV_GP1_SET
,
3063 CSR_UCODE_SW_BIT_RFKILL
);
3064 spin_unlock_irqrestore(&priv
->lock
, flags
);
3065 iwl3945_send_card_state(priv
, CARD_STATE_CMD_DISABLE
, 0);
3066 set_bit(STATUS_RF_KILL_SW
, &priv
->status
);
3071 spin_lock_irqsave(&priv
->lock
, flags
);
3072 iwl3945_write32(priv
, CSR_UCODE_DRV_GP1_CLR
, CSR_UCODE_SW_BIT_RFKILL
);
3074 clear_bit(STATUS_RF_KILL_SW
, &priv
->status
);
3075 spin_unlock_irqrestore(&priv
->lock
, flags
);
3080 spin_lock_irqsave(&priv
->lock
, flags
);
3081 iwl3945_read32(priv
, CSR_UCODE_DRV_GP1
);
3082 if (!iwl3945_grab_nic_access(priv
))
3083 iwl3945_release_nic_access(priv
);
3084 spin_unlock_irqrestore(&priv
->lock
, flags
);
3086 if (test_bit(STATUS_RF_KILL_HW
, &priv
->status
)) {
3087 IWL_DEBUG_RF_KILL("Can not turn radio back on - "
3088 "disabled by HW switch\n");
3092 queue_work(priv
->workqueue
, &priv
->restart
);
3096 void iwl3945_set_decrypted_flag(struct iwl3945_priv
*priv
, struct sk_buff
*skb
,
3097 u32 decrypt_res
, struct ieee80211_rx_status
*stats
)
3100 le16_to_cpu(((struct ieee80211_hdr
*)skb
->data
)->frame_control
);
3102 if (priv
->active_rxon
.filter_flags
& RXON_FILTER_DIS_DECRYPT_MSK
)
3105 if (!(fc
& IEEE80211_FCTL_PROTECTED
))
3108 IWL_DEBUG_RX("decrypt_res:0x%x\n", decrypt_res
);
3109 switch (decrypt_res
& RX_RES_STATUS_SEC_TYPE_MSK
) {
3110 case RX_RES_STATUS_SEC_TYPE_TKIP
:
3111 if ((decrypt_res
& RX_RES_STATUS_DECRYPT_TYPE_MSK
) ==
3112 RX_RES_STATUS_BAD_ICV_MIC
)
3113 stats
->flag
|= RX_FLAG_MMIC_ERROR
;
3114 case RX_RES_STATUS_SEC_TYPE_WEP
:
3115 case RX_RES_STATUS_SEC_TYPE_CCMP
:
3116 if ((decrypt_res
& RX_RES_STATUS_DECRYPT_TYPE_MSK
) ==
3117 RX_RES_STATUS_DECRYPT_OK
) {
3118 IWL_DEBUG_RX("hw decrypt successfully!!!\n");
3119 stats
->flag
|= RX_FLAG_DECRYPTED
;
3128 #define IWL_PACKET_RETRY_TIME HZ
3130 int iwl3945_is_duplicate_packet(struct iwl3945_priv
*priv
, struct ieee80211_hdr
*header
)
3132 u16 sc
= le16_to_cpu(header
->seq_ctrl
);
3133 u16 seq
= (sc
& IEEE80211_SCTL_SEQ
) >> 4;
3134 u16 frag
= sc
& IEEE80211_SCTL_FRAG
;
3135 u16
*last_seq
, *last_frag
;
3136 unsigned long *last_time
;
3138 switch (priv
->iw_mode
) {
3139 case IEEE80211_IF_TYPE_IBSS
:{
3140 struct list_head
*p
;
3141 struct iwl3945_ibss_seq
*entry
= NULL
;
3142 u8
*mac
= header
->addr2
;
3143 int index
= mac
[5] & (IWL_IBSS_MAC_HASH_SIZE
- 1);
3145 __list_for_each(p
, &priv
->ibss_mac_hash
[index
]) {
3146 entry
= list_entry(p
, struct iwl3945_ibss_seq
, list
);
3147 if (!compare_ether_addr(entry
->mac
, mac
))
3150 if (p
== &priv
->ibss_mac_hash
[index
]) {
3151 entry
= kzalloc(sizeof(*entry
), GFP_ATOMIC
);
3153 IWL_ERROR("Cannot malloc new mac entry\n");
3156 memcpy(entry
->mac
, mac
, ETH_ALEN
);
3157 entry
->seq_num
= seq
;
3158 entry
->frag_num
= frag
;
3159 entry
->packet_time
= jiffies
;
3160 list_add(&entry
->list
, &priv
->ibss_mac_hash
[index
]);
3163 last_seq
= &entry
->seq_num
;
3164 last_frag
= &entry
->frag_num
;
3165 last_time
= &entry
->packet_time
;
3168 case IEEE80211_IF_TYPE_STA
:
3169 last_seq
= &priv
->last_seq_num
;
3170 last_frag
= &priv
->last_frag_num
;
3171 last_time
= &priv
->last_packet_time
;
3176 if ((*last_seq
== seq
) &&
3177 time_after(*last_time
+ IWL_PACKET_RETRY_TIME
, jiffies
)) {
3178 if (*last_frag
== frag
)
3180 if (*last_frag
+ 1 != frag
)
3181 /* out-of-order fragment */
3187 *last_time
= jiffies
;
3194 #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT
3196 #include "iwl-spectrum.h"
3198 #define BEACON_TIME_MASK_LOW 0x00FFFFFF
3199 #define BEACON_TIME_MASK_HIGH 0xFF000000
3200 #define TIME_UNIT 1024
3203 * extended beacon time format
3204 * time in usec will be changed into a 32-bit value in 8:24 format
3205 * the high 1 byte is the beacon counts
3206 * the lower 3 bytes is the time in usec within one beacon interval
3209 static u32
iwl3945_usecs_to_beacons(u32 usec
, u32 beacon_interval
)
3213 u32 interval
= beacon_interval
* 1024;
3215 if (!interval
|| !usec
)
3218 quot
= (usec
/ interval
) & (BEACON_TIME_MASK_HIGH
>> 24);
3219 rem
= (usec
% interval
) & BEACON_TIME_MASK_LOW
;
3221 return (quot
<< 24) + rem
;
3224 /* base is usually what we get from ucode with each received frame,
3225 * the same as HW timer counter counting down
3228 static __le32
iwl3945_add_beacon_time(u32 base
, u32 addon
, u32 beacon_interval
)
3230 u32 base_low
= base
& BEACON_TIME_MASK_LOW
;
3231 u32 addon_low
= addon
& BEACON_TIME_MASK_LOW
;
3232 u32 interval
= beacon_interval
* TIME_UNIT
;
3233 u32 res
= (base
& BEACON_TIME_MASK_HIGH
) +
3234 (addon
& BEACON_TIME_MASK_HIGH
);
3236 if (base_low
> addon_low
)
3237 res
+= base_low
- addon_low
;
3238 else if (base_low
< addon_low
) {
3239 res
+= interval
+ base_low
- addon_low
;
3244 return cpu_to_le32(res
);
3247 static int iwl3945_get_measurement(struct iwl3945_priv
*priv
,
3248 struct ieee80211_measurement_params
*params
,
3251 struct iwl3945_spectrum_cmd spectrum
;
3252 struct iwl3945_rx_packet
*res
;
3253 struct iwl3945_host_cmd cmd
= {
3254 .id
= REPLY_SPECTRUM_MEASUREMENT_CMD
,
3255 .data
= (void *)&spectrum
,
3256 .meta
.flags
= CMD_WANT_SKB
,
3258 u32 add_time
= le64_to_cpu(params
->start_time
);
3260 int spectrum_resp_status
;
3261 int duration
= le16_to_cpu(params
->duration
);
3263 if (iwl3945_is_associated(priv
))
3265 iwl3945_usecs_to_beacons(
3266 le64_to_cpu(params
->start_time
) - priv
->last_tsf
,
3267 le16_to_cpu(priv
->rxon_timing
.beacon_interval
));
3269 memset(&spectrum
, 0, sizeof(spectrum
));
3271 spectrum
.channel_count
= cpu_to_le16(1);
3273 RXON_FLG_TSF2HOST_MSK
| RXON_FLG_ANT_A_MSK
| RXON_FLG_DIS_DIV_MSK
;
3274 spectrum
.filter_flags
= MEASUREMENT_FILTER_FLAG
;
3275 cmd
.len
= sizeof(spectrum
);
3276 spectrum
.len
= cpu_to_le16(cmd
.len
- sizeof(spectrum
.len
));
3278 if (iwl3945_is_associated(priv
))
3279 spectrum
.start_time
=
3280 iwl3945_add_beacon_time(priv
->last_beacon_time
,
3282 le16_to_cpu(priv
->rxon_timing
.beacon_interval
));
3284 spectrum
.start_time
= 0;
3286 spectrum
.channels
[0].duration
= cpu_to_le32(duration
* TIME_UNIT
);
3287 spectrum
.channels
[0].channel
= params
->channel
;
3288 spectrum
.channels
[0].type
= type
;
3289 if (priv
->active_rxon
.flags
& RXON_FLG_BAND_24G_MSK
)
3290 spectrum
.flags
|= RXON_FLG_BAND_24G_MSK
|
3291 RXON_FLG_AUTO_DETECT_MSK
| RXON_FLG_TGG_PROTECT_MSK
;
3293 rc
= iwl3945_send_cmd_sync(priv
, &cmd
);
3297 res
= (struct iwl3945_rx_packet
*)cmd
.meta
.u
.skb
->data
;
3298 if (res
->hdr
.flags
& IWL_CMD_FAILED_MSK
) {
3299 IWL_ERROR("Bad return from REPLY_RX_ON_ASSOC command\n");
3303 spectrum_resp_status
= le16_to_cpu(res
->u
.spectrum
.status
);
3304 switch (spectrum_resp_status
) {
3305 case 0: /* Command will be handled */
3306 if (res
->u
.spectrum
.id
!= 0xff) {
3307 IWL_DEBUG_INFO("Replaced existing measurement: %d\n",
3308 res
->u
.spectrum
.id
);
3309 priv
->measurement_status
&= ~MEASUREMENT_READY
;
3311 priv
->measurement_status
|= MEASUREMENT_ACTIVE
;
3315 case 1: /* Command will not be handled */
3320 dev_kfree_skb_any(cmd
.meta
.u
.skb
);
3326 static void iwl3945_txstatus_to_ieee(struct iwl3945_priv
*priv
,
3327 struct iwl3945_tx_info
*tx_sta
)
3330 tx_sta
->status
.ack_signal
= 0;
3331 tx_sta
->status
.excessive_retries
= 0;
3332 tx_sta
->status
.queue_length
= 0;
3333 tx_sta
->status
.queue_number
= 0;
3336 ieee80211_tx_status_irqsafe(priv
->hw
,
3337 tx_sta
->skb
[0], &(tx_sta
->status
));
3339 ieee80211_tx_status(priv
->hw
,
3340 tx_sta
->skb
[0], &(tx_sta
->status
));
3342 tx_sta
->skb
[0] = NULL
;
3346 * iwl3945_tx_queue_reclaim - Reclaim Tx queue entries already Tx'd
3348 * When FW advances 'R' index, all entries between old and new 'R' index
3349 * need to be reclaimed. As result, some free space forms. If there is
3350 * enough free space (> low mark), wake the stack that feeds us.
3352 static int iwl3945_tx_queue_reclaim(struct iwl3945_priv
*priv
, int txq_id
, int index
)
3354 struct iwl3945_tx_queue
*txq
= &priv
->txq
[txq_id
];
3355 struct iwl3945_queue
*q
= &txq
->q
;
3358 if ((index
>= q
->n_bd
) || (x2_queue_used(q
, index
) == 0)) {
3359 IWL_ERROR("Read index for DMA queue txq id (%d), index %d, "
3360 "is out of range [0-%d] %d %d.\n", txq_id
,
3361 index
, q
->n_bd
, q
->write_ptr
, q
->read_ptr
);
3365 for (index
= iwl3945_queue_inc_wrap(index
, q
->n_bd
);
3366 q
->read_ptr
!= index
;
3367 q
->read_ptr
= iwl3945_queue_inc_wrap(q
->read_ptr
, q
->n_bd
)) {
3368 if (txq_id
!= IWL_CMD_QUEUE_NUM
) {
3369 iwl3945_txstatus_to_ieee(priv
,
3370 &(txq
->txb
[txq
->q
.read_ptr
]));
3371 iwl3945_hw_txq_free_tfd(priv
, txq
);
3372 } else if (nfreed
> 1) {
3373 IWL_ERROR("HCMD skipped: index (%d) %d %d\n", index
,
3374 q
->write_ptr
, q
->read_ptr
);
3375 queue_work(priv
->workqueue
, &priv
->restart
);
3380 if (iwl3945_queue_space(q
) > q
->low_mark
&& (txq_id
>= 0) &&
3381 (txq_id
!= IWL_CMD_QUEUE_NUM
) &&
3382 priv
->mac80211_registered
)
3383 ieee80211_wake_queue(priv
->hw
, txq_id
);
3389 static int iwl3945_is_tx_success(u32 status
)
3391 return (status
& 0xFF) == 0x1;
3394 /******************************************************************************
3396 * Generic RX handler implementations
3398 ******************************************************************************/
3400 * iwl3945_rx_reply_tx - Handle Tx response
3402 static void iwl3945_rx_reply_tx(struct iwl3945_priv
*priv
,
3403 struct iwl3945_rx_mem_buffer
*rxb
)
3405 struct iwl3945_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3406 u16 sequence
= le16_to_cpu(pkt
->hdr
.sequence
);
3407 int txq_id
= SEQ_TO_QUEUE(sequence
);
3408 int index
= SEQ_TO_INDEX(sequence
);
3409 struct iwl3945_tx_queue
*txq
= &priv
->txq
[txq_id
];
3410 struct ieee80211_tx_status
*tx_status
;
3411 struct iwl3945_tx_resp
*tx_resp
= (void *)&pkt
->u
.raw
[0];
3412 u32 status
= le32_to_cpu(tx_resp
->status
);
3414 if ((index
>= txq
->q
.n_bd
) || (x2_queue_used(&txq
->q
, index
) == 0)) {
3415 IWL_ERROR("Read index for DMA queue txq_id (%d) index %d "
3416 "is out of range [0-%d] %d %d\n", txq_id
,
3417 index
, txq
->q
.n_bd
, txq
->q
.write_ptr
,
3422 tx_status
= &(txq
->txb
[txq
->q
.read_ptr
].status
);
3424 tx_status
->retry_count
= tx_resp
->failure_frame
;
3425 tx_status
->queue_number
= status
;
3426 tx_status
->queue_length
= tx_resp
->bt_kill_count
;
3427 tx_status
->queue_length
|= tx_resp
->failure_rts
;
3430 iwl3945_is_tx_success(status
) ? IEEE80211_TX_STATUS_ACK
: 0;
3432 tx_status
->control
.tx_rate
= iwl3945_rate_index_from_plcp(tx_resp
->rate
);
3434 IWL_DEBUG_TX("Tx queue %d Status %s (0x%08x) plcp rate %d retries %d\n",
3435 txq_id
, iwl3945_get_tx_fail_reason(status
), status
,
3436 tx_resp
->rate
, tx_resp
->failure_frame
);
3438 IWL_DEBUG_TX_REPLY("Tx queue reclaim %d\n", index
);
3440 iwl3945_tx_queue_reclaim(priv
, txq_id
, index
);
3442 if (iwl_check_bits(status
, TX_ABORT_REQUIRED_MSK
))
3443 IWL_ERROR("TODO: Implement Tx ABORT REQUIRED!!!\n");
3447 static void iwl3945_rx_reply_alive(struct iwl3945_priv
*priv
,
3448 struct iwl3945_rx_mem_buffer
*rxb
)
3450 struct iwl3945_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3451 struct iwl3945_alive_resp
*palive
;
3452 struct delayed_work
*pwork
;
3454 palive
= &pkt
->u
.alive_frame
;
3456 IWL_DEBUG_INFO("Alive ucode status 0x%08X revision "
3458 palive
->is_valid
, palive
->ver_type
,
3459 palive
->ver_subtype
);
3461 if (palive
->ver_subtype
== INITIALIZE_SUBTYPE
) {
3462 IWL_DEBUG_INFO("Initialization Alive received.\n");
3463 memcpy(&priv
->card_alive_init
,
3464 &pkt
->u
.alive_frame
,
3465 sizeof(struct iwl3945_init_alive_resp
));
3466 pwork
= &priv
->init_alive_start
;
3468 IWL_DEBUG_INFO("Runtime Alive received.\n");
3469 memcpy(&priv
->card_alive
, &pkt
->u
.alive_frame
,
3470 sizeof(struct iwl3945_alive_resp
));
3471 pwork
= &priv
->alive_start
;
3472 iwl3945_disable_events(priv
);
3475 /* We delay the ALIVE response by 5ms to
3476 * give the HW RF Kill time to activate... */
3477 if (palive
->is_valid
== UCODE_VALID_OK
)
3478 queue_delayed_work(priv
->workqueue
, pwork
,
3479 msecs_to_jiffies(5));
3481 IWL_WARNING("uCode did not respond OK.\n");
3484 static void iwl3945_rx_reply_add_sta(struct iwl3945_priv
*priv
,
3485 struct iwl3945_rx_mem_buffer
*rxb
)
3487 struct iwl3945_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3489 IWL_DEBUG_RX("Received REPLY_ADD_STA: 0x%02X\n", pkt
->u
.status
);
3493 static void iwl3945_rx_reply_error(struct iwl3945_priv
*priv
,
3494 struct iwl3945_rx_mem_buffer
*rxb
)
3496 struct iwl3945_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3498 IWL_ERROR("Error Reply type 0x%08X cmd %s (0x%02X) "
3499 "seq 0x%04X ser 0x%08X\n",
3500 le32_to_cpu(pkt
->u
.err_resp
.error_type
),
3501 get_cmd_string(pkt
->u
.err_resp
.cmd_id
),
3502 pkt
->u
.err_resp
.cmd_id
,
3503 le16_to_cpu(pkt
->u
.err_resp
.bad_cmd_seq_num
),
3504 le32_to_cpu(pkt
->u
.err_resp
.error_info
));
3507 #define TX_STATUS_ENTRY(x) case TX_STATUS_FAIL_ ## x: return #x
3509 static void iwl3945_rx_csa(struct iwl3945_priv
*priv
, struct iwl3945_rx_mem_buffer
*rxb
)
3511 struct iwl3945_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3512 struct iwl3945_rxon_cmd
*rxon
= (void *)&priv
->active_rxon
;
3513 struct iwl3945_csa_notification
*csa
= &(pkt
->u
.csa_notif
);
3514 IWL_DEBUG_11H("CSA notif: channel %d, status %d\n",
3515 le16_to_cpu(csa
->channel
), le32_to_cpu(csa
->status
));
3516 rxon
->channel
= csa
->channel
;
3517 priv
->staging_rxon
.channel
= csa
->channel
;
3520 static void iwl3945_rx_spectrum_measure_notif(struct iwl3945_priv
*priv
,
3521 struct iwl3945_rx_mem_buffer
*rxb
)
3523 #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT
3524 struct iwl3945_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3525 struct iwl3945_spectrum_notification
*report
= &(pkt
->u
.spectrum_notif
);
3527 if (!report
->state
) {
3528 IWL_DEBUG(IWL_DL_11H
| IWL_DL_INFO
,
3529 "Spectrum Measure Notification: Start\n");
3533 memcpy(&priv
->measure_report
, report
, sizeof(*report
));
3534 priv
->measurement_status
|= MEASUREMENT_READY
;
3538 static void iwl3945_rx_pm_sleep_notif(struct iwl3945_priv
*priv
,
3539 struct iwl3945_rx_mem_buffer
*rxb
)
3541 #ifdef CONFIG_IWL3945_DEBUG
3542 struct iwl3945_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3543 struct iwl3945_sleep_notification
*sleep
= &(pkt
->u
.sleep_notif
);
3544 IWL_DEBUG_RX("sleep mode: %d, src: %d\n",
3545 sleep
->pm_sleep_mode
, sleep
->pm_wakeup_src
);
3549 static void iwl3945_rx_pm_debug_statistics_notif(struct iwl3945_priv
*priv
,
3550 struct iwl3945_rx_mem_buffer
*rxb
)
3552 struct iwl3945_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3553 IWL_DEBUG_RADIO("Dumping %d bytes of unhandled "
3554 "notification for %s:\n",
3555 le32_to_cpu(pkt
->len
), get_cmd_string(pkt
->hdr
.cmd
));
3556 iwl3945_print_hex_dump(IWL_DL_RADIO
, pkt
->u
.raw
, le32_to_cpu(pkt
->len
));
3559 static void iwl3945_bg_beacon_update(struct work_struct
*work
)
3561 struct iwl3945_priv
*priv
=
3562 container_of(work
, struct iwl3945_priv
, beacon_update
);
3563 struct sk_buff
*beacon
;
3565 /* Pull updated AP beacon from mac80211. will fail if not in AP mode */
3566 beacon
= ieee80211_beacon_get(priv
->hw
, priv
->vif
, NULL
);
3569 IWL_ERROR("update beacon failed\n");
3573 mutex_lock(&priv
->mutex
);
3574 /* new beacon skb is allocated every time; dispose previous.*/
3575 if (priv
->ibss_beacon
)
3576 dev_kfree_skb(priv
->ibss_beacon
);
3578 priv
->ibss_beacon
= beacon
;
3579 mutex_unlock(&priv
->mutex
);
3581 iwl3945_send_beacon_cmd(priv
);
3584 static void iwl3945_rx_beacon_notif(struct iwl3945_priv
*priv
,
3585 struct iwl3945_rx_mem_buffer
*rxb
)
3587 #ifdef CONFIG_IWL3945_DEBUG
3588 struct iwl3945_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3589 struct iwl3945_beacon_notif
*beacon
= &(pkt
->u
.beacon_status
);
3590 u8 rate
= beacon
->beacon_notify_hdr
.rate
;
3592 IWL_DEBUG_RX("beacon status %x retries %d iss %d "
3593 "tsf %d %d rate %d\n",
3594 le32_to_cpu(beacon
->beacon_notify_hdr
.status
) & TX_STATUS_MSK
,
3595 beacon
->beacon_notify_hdr
.failure_frame
,
3596 le32_to_cpu(beacon
->ibss_mgr_status
),
3597 le32_to_cpu(beacon
->high_tsf
),
3598 le32_to_cpu(beacon
->low_tsf
), rate
);
3601 if ((priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) &&
3602 (!test_bit(STATUS_EXIT_PENDING
, &priv
->status
)))
3603 queue_work(priv
->workqueue
, &priv
->beacon_update
);
3606 /* Service response to REPLY_SCAN_CMD (0x80) */
3607 static void iwl3945_rx_reply_scan(struct iwl3945_priv
*priv
,
3608 struct iwl3945_rx_mem_buffer
*rxb
)
3610 #ifdef CONFIG_IWL3945_DEBUG
3611 struct iwl3945_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3612 struct iwl3945_scanreq_notification
*notif
=
3613 (struct iwl3945_scanreq_notification
*)pkt
->u
.raw
;
3615 IWL_DEBUG_RX("Scan request status = 0x%x\n", notif
->status
);
3619 /* Service SCAN_START_NOTIFICATION (0x82) */
3620 static void iwl3945_rx_scan_start_notif(struct iwl3945_priv
*priv
,
3621 struct iwl3945_rx_mem_buffer
*rxb
)
3623 struct iwl3945_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3624 struct iwl3945_scanstart_notification
*notif
=
3625 (struct iwl3945_scanstart_notification
*)pkt
->u
.raw
;
3626 priv
->scan_start_tsf
= le32_to_cpu(notif
->tsf_low
);
3627 IWL_DEBUG_SCAN("Scan start: "
3629 "(TSF: 0x%08X:%08X) - %d (beacon timer %u)\n",
3631 notif
->band
? "bg" : "a",
3633 notif
->tsf_low
, notif
->status
, notif
->beacon_timer
);
3636 /* Service SCAN_RESULTS_NOTIFICATION (0x83) */
3637 static void iwl3945_rx_scan_results_notif(struct iwl3945_priv
*priv
,
3638 struct iwl3945_rx_mem_buffer
*rxb
)
3640 struct iwl3945_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3641 struct iwl3945_scanresults_notification
*notif
=
3642 (struct iwl3945_scanresults_notification
*)pkt
->u
.raw
;
3644 IWL_DEBUG_SCAN("Scan ch.res: "
3646 "(TSF: 0x%08X:%08X) - %d "
3647 "elapsed=%lu usec (%dms since last)\n",
3649 notif
->band
? "bg" : "a",
3650 le32_to_cpu(notif
->tsf_high
),
3651 le32_to_cpu(notif
->tsf_low
),
3652 le32_to_cpu(notif
->statistics
[0]),
3653 le32_to_cpu(notif
->tsf_low
) - priv
->scan_start_tsf
,
3654 jiffies_to_msecs(elapsed_jiffies
3655 (priv
->last_scan_jiffies
, jiffies
)));
3657 priv
->last_scan_jiffies
= jiffies
;
3658 priv
->next_scan_jiffies
= 0;
3661 /* Service SCAN_COMPLETE_NOTIFICATION (0x84) */
3662 static void iwl3945_rx_scan_complete_notif(struct iwl3945_priv
*priv
,
3663 struct iwl3945_rx_mem_buffer
*rxb
)
3665 struct iwl3945_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3666 struct iwl3945_scancomplete_notification
*scan_notif
= (void *)pkt
->u
.raw
;
3668 IWL_DEBUG_SCAN("Scan complete: %d channels (TSF 0x%08X:%08X) - %d\n",
3669 scan_notif
->scanned_channels
,
3670 scan_notif
->tsf_low
,
3671 scan_notif
->tsf_high
, scan_notif
->status
);
3673 /* The HW is no longer scanning */
3674 clear_bit(STATUS_SCAN_HW
, &priv
->status
);
3676 /* The scan completion notification came in, so kill that timer... */
3677 cancel_delayed_work(&priv
->scan_check
);
3679 IWL_DEBUG_INFO("Scan pass on %sGHz took %dms\n",
3680 (priv
->scan_bands
== 2) ? "2.4" : "5.2",
3681 jiffies_to_msecs(elapsed_jiffies
3682 (priv
->scan_pass_start
, jiffies
)));
3684 /* Remove this scanned band from the list
3685 * of pending bands to scan */
3688 /* If a request to abort was given, or the scan did not succeed
3689 * then we reset the scan state machine and terminate,
3690 * re-queuing another scan if one has been requested */
3691 if (test_bit(STATUS_SCAN_ABORTING
, &priv
->status
)) {
3692 IWL_DEBUG_INFO("Aborted scan completed.\n");
3693 clear_bit(STATUS_SCAN_ABORTING
, &priv
->status
);
3695 /* If there are more bands on this scan pass reschedule */
3696 if (priv
->scan_bands
> 0)
3700 priv
->last_scan_jiffies
= jiffies
;
3701 priv
->next_scan_jiffies
= 0;
3702 IWL_DEBUG_INFO("Setting scan to off\n");
3704 clear_bit(STATUS_SCANNING
, &priv
->status
);
3706 IWL_DEBUG_INFO("Scan took %dms\n",
3707 jiffies_to_msecs(elapsed_jiffies(priv
->scan_start
, jiffies
)));
3709 queue_work(priv
->workqueue
, &priv
->scan_completed
);
3714 priv
->scan_pass_start
= jiffies
;
3715 queue_work(priv
->workqueue
, &priv
->request_scan
);
3718 /* Handle notification from uCode that card's power state is changing
3719 * due to software, hardware, or critical temperature RFKILL */
3720 static void iwl3945_rx_card_state_notif(struct iwl3945_priv
*priv
,
3721 struct iwl3945_rx_mem_buffer
*rxb
)
3723 struct iwl3945_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3724 u32 flags
= le32_to_cpu(pkt
->u
.card_state_notif
.flags
);
3725 unsigned long status
= priv
->status
;
3727 IWL_DEBUG_RF_KILL("Card state received: HW:%s SW:%s\n",
3728 (flags
& HW_CARD_DISABLED
) ? "Kill" : "On",
3729 (flags
& SW_CARD_DISABLED
) ? "Kill" : "On");
3731 iwl3945_write32(priv
, CSR_UCODE_DRV_GP1_SET
,
3732 CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED
);
3734 if (flags
& HW_CARD_DISABLED
)
3735 set_bit(STATUS_RF_KILL_HW
, &priv
->status
);
3737 clear_bit(STATUS_RF_KILL_HW
, &priv
->status
);
3740 if (flags
& SW_CARD_DISABLED
)
3741 set_bit(STATUS_RF_KILL_SW
, &priv
->status
);
3743 clear_bit(STATUS_RF_KILL_SW
, &priv
->status
);
3745 iwl3945_scan_cancel(priv
);
3747 if ((test_bit(STATUS_RF_KILL_HW
, &status
) !=
3748 test_bit(STATUS_RF_KILL_HW
, &priv
->status
)) ||
3749 (test_bit(STATUS_RF_KILL_SW
, &status
) !=
3750 test_bit(STATUS_RF_KILL_SW
, &priv
->status
)))
3751 queue_work(priv
->workqueue
, &priv
->rf_kill
);
3753 wake_up_interruptible(&priv
->wait_command_queue
);
3757 * iwl3945_setup_rx_handlers - Initialize Rx handler callbacks
3759 * Setup the RX handlers for each of the reply types sent from the uCode
3762 * This function chains into the hardware specific files for them to setup
3763 * any hardware specific handlers as well.
3765 static void iwl3945_setup_rx_handlers(struct iwl3945_priv
*priv
)
3767 priv
->rx_handlers
[REPLY_ALIVE
] = iwl3945_rx_reply_alive
;
3768 priv
->rx_handlers
[REPLY_ADD_STA
] = iwl3945_rx_reply_add_sta
;
3769 priv
->rx_handlers
[REPLY_ERROR
] = iwl3945_rx_reply_error
;
3770 priv
->rx_handlers
[CHANNEL_SWITCH_NOTIFICATION
] = iwl3945_rx_csa
;
3771 priv
->rx_handlers
[SPECTRUM_MEASURE_NOTIFICATION
] =
3772 iwl3945_rx_spectrum_measure_notif
;
3773 priv
->rx_handlers
[PM_SLEEP_NOTIFICATION
] = iwl3945_rx_pm_sleep_notif
;
3774 priv
->rx_handlers
[PM_DEBUG_STATISTIC_NOTIFIC
] =
3775 iwl3945_rx_pm_debug_statistics_notif
;
3776 priv
->rx_handlers
[BEACON_NOTIFICATION
] = iwl3945_rx_beacon_notif
;
3779 * The same handler is used for both the REPLY to a discrete
3780 * statistics request from the host as well as for the periodic
3781 * statistics notifications (after received beacons) from the uCode.
3783 priv
->rx_handlers
[REPLY_STATISTICS_CMD
] = iwl3945_hw_rx_statistics
;
3784 priv
->rx_handlers
[STATISTICS_NOTIFICATION
] = iwl3945_hw_rx_statistics
;
3786 priv
->rx_handlers
[REPLY_SCAN_CMD
] = iwl3945_rx_reply_scan
;
3787 priv
->rx_handlers
[SCAN_START_NOTIFICATION
] = iwl3945_rx_scan_start_notif
;
3788 priv
->rx_handlers
[SCAN_RESULTS_NOTIFICATION
] =
3789 iwl3945_rx_scan_results_notif
;
3790 priv
->rx_handlers
[SCAN_COMPLETE_NOTIFICATION
] =
3791 iwl3945_rx_scan_complete_notif
;
3792 priv
->rx_handlers
[CARD_STATE_NOTIFICATION
] = iwl3945_rx_card_state_notif
;
3793 priv
->rx_handlers
[REPLY_TX
] = iwl3945_rx_reply_tx
;
3795 /* Set up hardware specific Rx handlers */
3796 iwl3945_hw_rx_handler_setup(priv
);
3800 * iwl3945_tx_cmd_complete - Pull unused buffers off the queue and reclaim them
3801 * @rxb: Rx buffer to reclaim
3803 * If an Rx buffer has an async callback associated with it the callback
3804 * will be executed. The attached skb (if present) will only be freed
3805 * if the callback returns 1
3807 static void iwl3945_tx_cmd_complete(struct iwl3945_priv
*priv
,
3808 struct iwl3945_rx_mem_buffer
*rxb
)
3810 struct iwl3945_rx_packet
*pkt
= (struct iwl3945_rx_packet
*)rxb
->skb
->data
;
3811 u16 sequence
= le16_to_cpu(pkt
->hdr
.sequence
);
3812 int txq_id
= SEQ_TO_QUEUE(sequence
);
3813 int index
= SEQ_TO_INDEX(sequence
);
3814 int huge
= sequence
& SEQ_HUGE_FRAME
;
3816 struct iwl3945_cmd
*cmd
;
3818 /* If a Tx command is being handled and it isn't in the actual
3819 * command queue then there a command routing bug has been introduced
3820 * in the queue management code. */
3821 if (txq_id
!= IWL_CMD_QUEUE_NUM
)
3822 IWL_ERROR("Error wrong command queue %d command id 0x%X\n",
3823 txq_id
, pkt
->hdr
.cmd
);
3824 BUG_ON(txq_id
!= IWL_CMD_QUEUE_NUM
);
3826 cmd_index
= get_cmd_index(&priv
->txq
[IWL_CMD_QUEUE_NUM
].q
, index
, huge
);
3827 cmd
= &priv
->txq
[IWL_CMD_QUEUE_NUM
].cmd
[cmd_index
];
3829 /* Input error checking is done when commands are added to queue. */
3830 if (cmd
->meta
.flags
& CMD_WANT_SKB
) {
3831 cmd
->meta
.source
->u
.skb
= rxb
->skb
;
3833 } else if (cmd
->meta
.u
.callback
&&
3834 !cmd
->meta
.u
.callback(priv
, cmd
, rxb
->skb
))
3837 iwl3945_tx_queue_reclaim(priv
, txq_id
, index
);
3839 if (!(cmd
->meta
.flags
& CMD_ASYNC
)) {
3840 clear_bit(STATUS_HCMD_ACTIVE
, &priv
->status
);
3841 wake_up_interruptible(&priv
->wait_command_queue
);
3845 /************************** RX-FUNCTIONS ****************************/
3847 * Rx theory of operation
3849 * The host allocates 32 DMA target addresses and passes the host address
3850 * to the firmware at register IWL_RFDS_TABLE_LOWER + N * RFD_SIZE where N is
3854 * The host/firmware share two index registers for managing the Rx buffers.
3856 * The READ index maps to the first position that the firmware may be writing
3857 * to -- the driver can read up to (but not including) this position and get
3859 * The READ index is managed by the firmware once the card is enabled.
3861 * The WRITE index maps to the last position the driver has read from -- the
3862 * position preceding WRITE is the last slot the firmware can place a packet.
3864 * The queue is empty (no good data) if WRITE = READ - 1, and is full if
3867 * During initialization, the host sets up the READ queue position to the first
3868 * INDEX position, and WRITE to the last (READ - 1 wrapped)
3870 * When the firmware places a packet in a buffer, it will advance the READ index
3871 * and fire the RX interrupt. The driver can then query the READ index and
3872 * process as many packets as possible, moving the WRITE index forward as it
3873 * resets the Rx queue buffers with new memory.
3875 * The management in the driver is as follows:
3876 * + A list of pre-allocated SKBs is stored in iwl->rxq->rx_free. When
3877 * iwl->rxq->free_count drops to or below RX_LOW_WATERMARK, work is scheduled
3878 * to replenish the iwl->rxq->rx_free.
3879 * + In iwl3945_rx_replenish (scheduled) if 'processed' != 'read' then the
3880 * iwl->rxq is replenished and the READ INDEX is updated (updating the
3881 * 'processed' and 'read' driver indexes as well)
3882 * + A received packet is processed and handed to the kernel network stack,
3883 * detached from the iwl->rxq. The driver 'processed' index is updated.
3884 * + The Host/Firmware iwl->rxq is replenished at tasklet time from the rx_free
3885 * list. If there are no allocated buffers in iwl->rxq->rx_free, the READ
3886 * INDEX is not incremented and iwl->status(RX_STALLED) is set. If there
3887 * were enough free buffers and RX_STALLED is set it is cleared.
3892 * iwl3945_rx_queue_alloc() Allocates rx_free
3893 * iwl3945_rx_replenish() Replenishes rx_free list from rx_used, and calls
3894 * iwl3945_rx_queue_restock
3895 * iwl3945_rx_queue_restock() Moves available buffers from rx_free into Rx
3896 * queue, updates firmware pointers, and updates
3897 * the WRITE index. If insufficient rx_free buffers
3898 * are available, schedules iwl3945_rx_replenish
3900 * -- enable interrupts --
3901 * ISR - iwl3945_rx() Detach iwl3945_rx_mem_buffers from pool up to the
3902 * READ INDEX, detaching the SKB from the pool.
3903 * Moves the packet buffer from queue to rx_used.
3904 * Calls iwl3945_rx_queue_restock to refill any empty
3911 * iwl3945_rx_queue_space - Return number of free slots available in queue.
3913 static int iwl3945_rx_queue_space(const struct iwl3945_rx_queue
*q
)
3915 int s
= q
->read
- q
->write
;
3918 /* keep some buffer to not confuse full and empty queue */
3926 * iwl3945_rx_queue_update_write_ptr - Update the write pointer for the RX queue
3928 int iwl3945_rx_queue_update_write_ptr(struct iwl3945_priv
*priv
, struct iwl3945_rx_queue
*q
)
3932 unsigned long flags
;
3934 spin_lock_irqsave(&q
->lock
, flags
);
3936 if (q
->need_update
== 0)
3939 /* If power-saving is in use, make sure device is awake */
3940 if (test_bit(STATUS_POWER_PMI
, &priv
->status
)) {
3941 reg
= iwl3945_read32(priv
, CSR_UCODE_DRV_GP1
);
3943 if (reg
& CSR_UCODE_DRV_GP1_BIT_MAC_SLEEP
) {
3944 iwl3945_set_bit(priv
, CSR_GP_CNTRL
,
3945 CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ
);
3949 rc
= iwl3945_grab_nic_access(priv
);
3953 /* Device expects a multiple of 8 */
3954 iwl3945_write_direct32(priv
, FH_RSCSR_CHNL0_WPTR
,
3956 iwl3945_release_nic_access(priv
);
3958 /* Else device is assumed to be awake */
3960 /* Device expects a multiple of 8 */
3961 iwl3945_write32(priv
, FH_RSCSR_CHNL0_WPTR
, q
->write
& ~0x7);
3967 spin_unlock_irqrestore(&q
->lock
, flags
);
3972 * iwl3945_dma_addr2rbd_ptr - convert a DMA address to a uCode read buffer ptr
3974 static inline __le32
iwl3945_dma_addr2rbd_ptr(struct iwl3945_priv
*priv
,
3975 dma_addr_t dma_addr
)
3977 return cpu_to_le32((u32
)dma_addr
);
3981 * iwl3945_rx_queue_restock - refill RX queue from pre-allocated pool
3983 * If there are slots in the RX queue that need to be restocked,
3984 * and we have free pre-allocated buffers, fill the ranks as much
3985 * as we can, pulling from rx_free.
3987 * This moves the 'write' index forward to catch up with 'processed', and
3988 * also updates the memory address in the firmware to reference the new
3991 static int iwl3945_rx_queue_restock(struct iwl3945_priv
*priv
)
3993 struct iwl3945_rx_queue
*rxq
= &priv
->rxq
;
3994 struct list_head
*element
;
3995 struct iwl3945_rx_mem_buffer
*rxb
;
3996 unsigned long flags
;
3999 spin_lock_irqsave(&rxq
->lock
, flags
);
4000 write
= rxq
->write
& ~0x7;
4001 while ((iwl3945_rx_queue_space(rxq
) > 0) && (rxq
->free_count
)) {
4002 /* Get next free Rx buffer, remove from free list */
4003 element
= rxq
->rx_free
.next
;
4004 rxb
= list_entry(element
, struct iwl3945_rx_mem_buffer
, list
);
4007 /* Point to Rx buffer via next RBD in circular buffer */
4008 rxq
->bd
[rxq
->write
] = iwl3945_dma_addr2rbd_ptr(priv
, rxb
->dma_addr
);
4009 rxq
->queue
[rxq
->write
] = rxb
;
4010 rxq
->write
= (rxq
->write
+ 1) & RX_QUEUE_MASK
;
4013 spin_unlock_irqrestore(&rxq
->lock
, flags
);
4014 /* If the pre-allocated buffer pool is dropping low, schedule to
4016 if (rxq
->free_count
<= RX_LOW_WATERMARK
)
4017 queue_work(priv
->workqueue
, &priv
->rx_replenish
);
4020 /* If we've added more space for the firmware to place data, tell it.
4021 * Increment device's write pointer in multiples of 8. */
4022 if ((write
!= (rxq
->write
& ~0x7))
4023 || (abs(rxq
->write
- rxq
->read
) > 7)) {
4024 spin_lock_irqsave(&rxq
->lock
, flags
);
4025 rxq
->need_update
= 1;
4026 spin_unlock_irqrestore(&rxq
->lock
, flags
);
4027 rc
= iwl3945_rx_queue_update_write_ptr(priv
, rxq
);
4036 * iwl3945_rx_replenish - Move all used packet from rx_used to rx_free
4038 * When moving to rx_free an SKB is allocated for the slot.
4040 * Also restock the Rx queue via iwl3945_rx_queue_restock.
4041 * This is called as a scheduled work item (except for during initialization)
4043 static void iwl3945_rx_allocate(struct iwl3945_priv
*priv
)
4045 struct iwl3945_rx_queue
*rxq
= &priv
->rxq
;
4046 struct list_head
*element
;
4047 struct iwl3945_rx_mem_buffer
*rxb
;
4048 unsigned long flags
;
4049 spin_lock_irqsave(&rxq
->lock
, flags
);
4050 while (!list_empty(&rxq
->rx_used
)) {
4051 element
= rxq
->rx_used
.next
;
4052 rxb
= list_entry(element
, struct iwl3945_rx_mem_buffer
, list
);
4054 /* Alloc a new receive buffer */
4056 alloc_skb(IWL_RX_BUF_SIZE
, __GFP_NOWARN
| GFP_ATOMIC
);
4058 if (net_ratelimit())
4059 printk(KERN_CRIT DRV_NAME
4060 ": Can not allocate SKB buffers\n");
4061 /* We don't reschedule replenish work here -- we will
4062 * call the restock method and if it still needs
4063 * more buffers it will schedule replenish */
4067 /* If radiotap head is required, reserve some headroom here.
4068 * The physical head count is a variable rx_stats->phy_count.
4069 * We reserve 4 bytes here. Plus these extra bytes, the
4070 * headroom of the physical head should be enough for the
4071 * radiotap head that iwl3945 supported. See iwl3945_rt.
4073 skb_reserve(rxb
->skb
, 4);
4075 priv
->alloc_rxb_skb
++;
4078 /* Get physical address of RB/SKB */
4080 pci_map_single(priv
->pci_dev
, rxb
->skb
->data
,
4081 IWL_RX_BUF_SIZE
, PCI_DMA_FROMDEVICE
);
4082 list_add_tail(&rxb
->list
, &rxq
->rx_free
);
4085 spin_unlock_irqrestore(&rxq
->lock
, flags
);
4089 * this should be called while priv->lock is locked
4091 static void __iwl3945_rx_replenish(void *data
)
4093 struct iwl3945_priv
*priv
= data
;
4095 iwl3945_rx_allocate(priv
);
4096 iwl3945_rx_queue_restock(priv
);
4100 void iwl3945_rx_replenish(void *data
)
4102 struct iwl3945_priv
*priv
= data
;
4103 unsigned long flags
;
4105 iwl3945_rx_allocate(priv
);
4107 spin_lock_irqsave(&priv
->lock
, flags
);
4108 iwl3945_rx_queue_restock(priv
);
4109 spin_unlock_irqrestore(&priv
->lock
, flags
);
4112 /* Assumes that the skb field of the buffers in 'pool' is kept accurate.
4113 * If an SKB has been detached, the POOL needs to have its SKB set to NULL
4114 * This free routine walks the list of POOL entries and if SKB is set to
4115 * non NULL it is unmapped and freed
4117 static void iwl3945_rx_queue_free(struct iwl3945_priv
*priv
, struct iwl3945_rx_queue
*rxq
)
4120 for (i
= 0; i
< RX_QUEUE_SIZE
+ RX_FREE_BUFFERS
; i
++) {
4121 if (rxq
->pool
[i
].skb
!= NULL
) {
4122 pci_unmap_single(priv
->pci_dev
,
4123 rxq
->pool
[i
].dma_addr
,
4124 IWL_RX_BUF_SIZE
, PCI_DMA_FROMDEVICE
);
4125 dev_kfree_skb(rxq
->pool
[i
].skb
);
4129 pci_free_consistent(priv
->pci_dev
, 4 * RX_QUEUE_SIZE
, rxq
->bd
,
4134 int iwl3945_rx_queue_alloc(struct iwl3945_priv
*priv
)
4136 struct iwl3945_rx_queue
*rxq
= &priv
->rxq
;
4137 struct pci_dev
*dev
= priv
->pci_dev
;
4140 spin_lock_init(&rxq
->lock
);
4141 INIT_LIST_HEAD(&rxq
->rx_free
);
4142 INIT_LIST_HEAD(&rxq
->rx_used
);
4144 /* Alloc the circular buffer of Read Buffer Descriptors (RBDs) */
4145 rxq
->bd
= pci_alloc_consistent(dev
, 4 * RX_QUEUE_SIZE
, &rxq
->dma_addr
);
4149 /* Fill the rx_used queue with _all_ of the Rx buffers */
4150 for (i
= 0; i
< RX_FREE_BUFFERS
+ RX_QUEUE_SIZE
; i
++)
4151 list_add_tail(&rxq
->pool
[i
].list
, &rxq
->rx_used
);
4153 /* Set us so that we have processed and used all buffers, but have
4154 * not restocked the Rx queue with fresh buffers */
4155 rxq
->read
= rxq
->write
= 0;
4156 rxq
->free_count
= 0;
4157 rxq
->need_update
= 0;
4161 void iwl3945_rx_queue_reset(struct iwl3945_priv
*priv
, struct iwl3945_rx_queue
*rxq
)
4163 unsigned long flags
;
4165 spin_lock_irqsave(&rxq
->lock
, flags
);
4166 INIT_LIST_HEAD(&rxq
->rx_free
);
4167 INIT_LIST_HEAD(&rxq
->rx_used
);
4168 /* Fill the rx_used queue with _all_ of the Rx buffers */
4169 for (i
= 0; i
< RX_FREE_BUFFERS
+ RX_QUEUE_SIZE
; i
++) {
4170 /* In the reset function, these buffers may have been allocated
4171 * to an SKB, so we need to unmap and free potential storage */
4172 if (rxq
->pool
[i
].skb
!= NULL
) {
4173 pci_unmap_single(priv
->pci_dev
,
4174 rxq
->pool
[i
].dma_addr
,
4175 IWL_RX_BUF_SIZE
, PCI_DMA_FROMDEVICE
);
4176 priv
->alloc_rxb_skb
--;
4177 dev_kfree_skb(rxq
->pool
[i
].skb
);
4178 rxq
->pool
[i
].skb
= NULL
;
4180 list_add_tail(&rxq
->pool
[i
].list
, &rxq
->rx_used
);
4183 /* Set us so that we have processed and used all buffers, but have
4184 * not restocked the Rx queue with fresh buffers */
4185 rxq
->read
= rxq
->write
= 0;
4186 rxq
->free_count
= 0;
4187 spin_unlock_irqrestore(&rxq
->lock
, flags
);
4190 /* Convert linear signal-to-noise ratio into dB */
4191 static u8 ratio2dB
[100] = {
4192 /* 0 1 2 3 4 5 6 7 8 9 */
4193 0, 0, 6, 10, 12, 14, 16, 17, 18, 19, /* 00 - 09 */
4194 20, 21, 22, 22, 23, 23, 24, 25, 26, 26, /* 10 - 19 */
4195 26, 26, 26, 27, 27, 28, 28, 28, 29, 29, /* 20 - 29 */
4196 29, 30, 30, 30, 31, 31, 31, 31, 32, 32, /* 30 - 39 */
4197 32, 32, 32, 33, 33, 33, 33, 33, 34, 34, /* 40 - 49 */
4198 34, 34, 34, 34, 35, 35, 35, 35, 35, 35, /* 50 - 59 */
4199 36, 36, 36, 36, 36, 36, 36, 37, 37, 37, /* 60 - 69 */
4200 37, 37, 37, 37, 37, 38, 38, 38, 38, 38, /* 70 - 79 */
4201 38, 38, 38, 38, 38, 39, 39, 39, 39, 39, /* 80 - 89 */
4202 39, 39, 39, 39, 39, 40, 40, 40, 40, 40 /* 90 - 99 */
4205 /* Calculates a relative dB value from a ratio of linear
4206 * (i.e. not dB) signal levels.
4207 * Conversion assumes that levels are voltages (20*log), not powers (10*log). */
4208 int iwl3945_calc_db_from_ratio(int sig_ratio
)
4210 /* Anything above 1000:1 just report as 60 dB */
4211 if (sig_ratio
> 1000)
4214 /* Above 100:1, divide by 10 and use table,
4215 * add 20 dB to make up for divide by 10 */
4216 if (sig_ratio
> 100)
4217 return (20 + (int)ratio2dB
[sig_ratio
/10]);
4219 /* We shouldn't see this */
4223 /* Use table for ratios 1:1 - 99:1 */
4224 return (int)ratio2dB
[sig_ratio
];
4227 #define PERFECT_RSSI (-20) /* dBm */
4228 #define WORST_RSSI (-95) /* dBm */
4229 #define RSSI_RANGE (PERFECT_RSSI - WORST_RSSI)
4231 /* Calculate an indication of rx signal quality (a percentage, not dBm!).
4232 * See http://www.ces.clemson.edu/linux/signal_quality.shtml for info
4233 * about formulas used below. */
4234 int iwl3945_calc_sig_qual(int rssi_dbm
, int noise_dbm
)
4237 int degradation
= PERFECT_RSSI
- rssi_dbm
;
4239 /* If we get a noise measurement, use signal-to-noise ratio (SNR)
4240 * as indicator; formula is (signal dbm - noise dbm).
4241 * SNR at or above 40 is a great signal (100%).
4242 * Below that, scale to fit SNR of 0 - 40 dB within 0 - 100% indicator.
4243 * Weakest usable signal is usually 10 - 15 dB SNR. */
4245 if (rssi_dbm
- noise_dbm
>= 40)
4247 else if (rssi_dbm
< noise_dbm
)
4249 sig_qual
= ((rssi_dbm
- noise_dbm
) * 5) / 2;
4251 /* Else use just the signal level.
4252 * This formula is a least squares fit of data points collected and
4253 * compared with a reference system that had a percentage (%) display
4254 * for signal quality. */
4256 sig_qual
= (100 * (RSSI_RANGE
* RSSI_RANGE
) - degradation
*
4257 (15 * RSSI_RANGE
+ 62 * degradation
)) /
4258 (RSSI_RANGE
* RSSI_RANGE
);
4262 else if (sig_qual
< 1)
4269 * iwl3945_rx_handle - Main entry function for receiving responses from uCode
4271 * Uses the priv->rx_handlers callback function array to invoke
4272 * the appropriate handlers, including command responses,
4273 * frame-received notifications, and other notifications.
4275 static void iwl3945_rx_handle(struct iwl3945_priv
*priv
)
4277 struct iwl3945_rx_mem_buffer
*rxb
;
4278 struct iwl3945_rx_packet
*pkt
;
4279 struct iwl3945_rx_queue
*rxq
= &priv
->rxq
;
4282 unsigned long flags
;
4286 /* uCode's read index (stored in shared DRAM) indicates the last Rx
4287 * buffer that the driver may process (last buffer filled by ucode). */
4288 r
= iwl3945_hw_get_rx_read(priv
);
4291 if (iwl3945_rx_queue_space(rxq
) > (RX_QUEUE_SIZE
/ 2))
4293 /* Rx interrupt, but nothing sent from uCode */
4295 IWL_DEBUG(IWL_DL_RX
| IWL_DL_ISR
, "r = %d, i = %d\n", r
, i
);
4298 rxb
= rxq
->queue
[i
];
4300 /* If an RXB doesn't have a Rx queue slot associated with it,
4301 * then a bug has been introduced in the queue refilling
4302 * routines -- catch it here */
4303 BUG_ON(rxb
== NULL
);
4305 rxq
->queue
[i
] = NULL
;
4307 pci_dma_sync_single_for_cpu(priv
->pci_dev
, rxb
->dma_addr
,
4309 PCI_DMA_FROMDEVICE
);
4310 pkt
= (struct iwl3945_rx_packet
*)rxb
->skb
->data
;
4312 /* Reclaim a command buffer only if this packet is a response
4313 * to a (driver-originated) command.
4314 * If the packet (e.g. Rx frame) originated from uCode,
4315 * there is no command buffer to reclaim.
4316 * Ucode should set SEQ_RX_FRAME bit if ucode-originated,
4317 * but apparently a few don't get set; catch them here. */
4318 reclaim
= !(pkt
->hdr
.sequence
& SEQ_RX_FRAME
) &&
4319 (pkt
->hdr
.cmd
!= STATISTICS_NOTIFICATION
) &&
4320 (pkt
->hdr
.cmd
!= REPLY_TX
);
4322 /* Based on type of command response or notification,
4323 * handle those that need handling via function in
4324 * rx_handlers table. See iwl3945_setup_rx_handlers() */
4325 if (priv
->rx_handlers
[pkt
->hdr
.cmd
]) {
4326 IWL_DEBUG(IWL_DL_HOST_COMMAND
| IWL_DL_RX
| IWL_DL_ISR
,
4327 "r = %d, i = %d, %s, 0x%02x\n", r
, i
,
4328 get_cmd_string(pkt
->hdr
.cmd
), pkt
->hdr
.cmd
);
4329 priv
->rx_handlers
[pkt
->hdr
.cmd
] (priv
, rxb
);
4331 /* No handling needed */
4332 IWL_DEBUG(IWL_DL_HOST_COMMAND
| IWL_DL_RX
| IWL_DL_ISR
,
4333 "r %d i %d No handler needed for %s, 0x%02x\n",
4334 r
, i
, get_cmd_string(pkt
->hdr
.cmd
),
4339 /* Invoke any callbacks, transfer the skb to caller, and
4340 * fire off the (possibly) blocking iwl3945_send_cmd()
4341 * as we reclaim the driver command queue */
4342 if (rxb
&& rxb
->skb
)
4343 iwl3945_tx_cmd_complete(priv
, rxb
);
4345 IWL_WARNING("Claim null rxb?\n");
4348 /* For now we just don't re-use anything. We can tweak this
4349 * later to try and re-use notification packets and SKBs that
4350 * fail to Rx correctly */
4351 if (rxb
->skb
!= NULL
) {
4352 priv
->alloc_rxb_skb
--;
4353 dev_kfree_skb_any(rxb
->skb
);
4357 pci_unmap_single(priv
->pci_dev
, rxb
->dma_addr
,
4358 IWL_RX_BUF_SIZE
, PCI_DMA_FROMDEVICE
);
4359 spin_lock_irqsave(&rxq
->lock
, flags
);
4360 list_add_tail(&rxb
->list
, &priv
->rxq
.rx_used
);
4361 spin_unlock_irqrestore(&rxq
->lock
, flags
);
4362 i
= (i
+ 1) & RX_QUEUE_MASK
;
4363 /* If there are a lot of unused frames,
4364 * restock the Rx queue so ucode won't assert. */
4369 __iwl3945_rx_replenish(priv
);
4375 /* Backtrack one entry */
4377 iwl3945_rx_queue_restock(priv
);
4381 * iwl3945_tx_queue_update_write_ptr - Send new write index to hardware
4383 static int iwl3945_tx_queue_update_write_ptr(struct iwl3945_priv
*priv
,
4384 struct iwl3945_tx_queue
*txq
)
4388 int txq_id
= txq
->q
.id
;
4390 if (txq
->need_update
== 0)
4393 /* if we're trying to save power */
4394 if (test_bit(STATUS_POWER_PMI
, &priv
->status
)) {
4395 /* wake up nic if it's powered down ...
4396 * uCode will wake up, and interrupt us again, so next
4397 * time we'll skip this part. */
4398 reg
= iwl3945_read32(priv
, CSR_UCODE_DRV_GP1
);
4400 if (reg
& CSR_UCODE_DRV_GP1_BIT_MAC_SLEEP
) {
4401 IWL_DEBUG_INFO("Requesting wakeup, GP1 = 0x%x\n", reg
);
4402 iwl3945_set_bit(priv
, CSR_GP_CNTRL
,
4403 CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ
);
4407 /* restore this queue's parameters in nic hardware. */
4408 rc
= iwl3945_grab_nic_access(priv
);
4411 iwl3945_write_direct32(priv
, HBUS_TARG_WRPTR
,
4412 txq
->q
.write_ptr
| (txq_id
<< 8));
4413 iwl3945_release_nic_access(priv
);
4415 /* else not in power-save mode, uCode will never sleep when we're
4416 * trying to tx (during RFKILL, we're not trying to tx). */
4418 iwl3945_write32(priv
, HBUS_TARG_WRPTR
,
4419 txq
->q
.write_ptr
| (txq_id
<< 8));
4421 txq
->need_update
= 0;
4426 #ifdef CONFIG_IWL3945_DEBUG
4427 static void iwl3945_print_rx_config_cmd(struct iwl3945_rxon_cmd
*rxon
)
4429 DECLARE_MAC_BUF(mac
);
4431 IWL_DEBUG_RADIO("RX CONFIG:\n");
4432 iwl3945_print_hex_dump(IWL_DL_RADIO
, (u8
*) rxon
, sizeof(*rxon
));
4433 IWL_DEBUG_RADIO("u16 channel: 0x%x\n", le16_to_cpu(rxon
->channel
));
4434 IWL_DEBUG_RADIO("u32 flags: 0x%08X\n", le32_to_cpu(rxon
->flags
));
4435 IWL_DEBUG_RADIO("u32 filter_flags: 0x%08x\n",
4436 le32_to_cpu(rxon
->filter_flags
));
4437 IWL_DEBUG_RADIO("u8 dev_type: 0x%x\n", rxon
->dev_type
);
4438 IWL_DEBUG_RADIO("u8 ofdm_basic_rates: 0x%02x\n",
4439 rxon
->ofdm_basic_rates
);
4440 IWL_DEBUG_RADIO("u8 cck_basic_rates: 0x%02x\n", rxon
->cck_basic_rates
);
4441 IWL_DEBUG_RADIO("u8[6] node_addr: %s\n",
4442 print_mac(mac
, rxon
->node_addr
));
4443 IWL_DEBUG_RADIO("u8[6] bssid_addr: %s\n",
4444 print_mac(mac
, rxon
->bssid_addr
));
4445 IWL_DEBUG_RADIO("u16 assoc_id: 0x%x\n", le16_to_cpu(rxon
->assoc_id
));
4449 static void iwl3945_enable_interrupts(struct iwl3945_priv
*priv
)
4451 IWL_DEBUG_ISR("Enabling interrupts\n");
4452 set_bit(STATUS_INT_ENABLED
, &priv
->status
);
4453 iwl3945_write32(priv
, CSR_INT_MASK
, CSR_INI_SET_MASK
);
4456 static inline void iwl3945_disable_interrupts(struct iwl3945_priv
*priv
)
4458 clear_bit(STATUS_INT_ENABLED
, &priv
->status
);
4460 /* disable interrupts from uCode/NIC to host */
4461 iwl3945_write32(priv
, CSR_INT_MASK
, 0x00000000);
4463 /* acknowledge/clear/reset any interrupts still pending
4464 * from uCode or flow handler (Rx/Tx DMA) */
4465 iwl3945_write32(priv
, CSR_INT
, 0xffffffff);
4466 iwl3945_write32(priv
, CSR_FH_INT_STATUS
, 0xffffffff);
4467 IWL_DEBUG_ISR("Disabled interrupts\n");
4470 static const char *desc_lookup(int i
)
4478 return "BAD_CHECKSUM";
4480 return "NMI_INTERRUPT";
4484 return "FATAL_ERROR";
4490 #define ERROR_START_OFFSET (1 * sizeof(u32))
4491 #define ERROR_ELEM_SIZE (7 * sizeof(u32))
4493 static void iwl3945_dump_nic_error_log(struct iwl3945_priv
*priv
)
4496 u32 desc
, time
, count
, base
, data1
;
4497 u32 blink1
, blink2
, ilink1
, ilink2
;
4500 base
= le32_to_cpu(priv
->card_alive
.error_event_table_ptr
);
4502 if (!iwl3945_hw_valid_rtc_data_addr(base
)) {
4503 IWL_ERROR("Not valid error log pointer 0x%08X\n", base
);
4507 rc
= iwl3945_grab_nic_access(priv
);
4509 IWL_WARNING("Can not read from adapter at this time.\n");
4513 count
= iwl3945_read_targ_mem(priv
, base
);
4515 if (ERROR_START_OFFSET
<= count
* ERROR_ELEM_SIZE
) {
4516 IWL_ERROR("Start IWL Error Log Dump:\n");
4517 IWL_ERROR("Status: 0x%08lX, Config: %08X count: %d\n",
4518 priv
->status
, priv
->config
, count
);
4521 IWL_ERROR("Desc Time asrtPC blink2 "
4522 "ilink1 nmiPC Line\n");
4523 for (i
= ERROR_START_OFFSET
;
4524 i
< (count
* ERROR_ELEM_SIZE
) + ERROR_START_OFFSET
;
4525 i
+= ERROR_ELEM_SIZE
) {
4526 desc
= iwl3945_read_targ_mem(priv
, base
+ i
);
4528 iwl3945_read_targ_mem(priv
, base
+ i
+ 1 * sizeof(u32
));
4530 iwl3945_read_targ_mem(priv
, base
+ i
+ 2 * sizeof(u32
));
4532 iwl3945_read_targ_mem(priv
, base
+ i
+ 3 * sizeof(u32
));
4534 iwl3945_read_targ_mem(priv
, base
+ i
+ 4 * sizeof(u32
));
4536 iwl3945_read_targ_mem(priv
, base
+ i
+ 5 * sizeof(u32
));
4538 iwl3945_read_targ_mem(priv
, base
+ i
+ 6 * sizeof(u32
));
4541 ("%-13s (#%d) %010u 0x%05X 0x%05X 0x%05X 0x%05X %u\n\n",
4542 desc_lookup(desc
), desc
, time
, blink1
, blink2
,
4543 ilink1
, ilink2
, data1
);
4546 iwl3945_release_nic_access(priv
);
4550 #define EVENT_START_OFFSET (6 * sizeof(u32))
4553 * iwl3945_print_event_log - Dump error event log to syslog
4555 * NOTE: Must be called with iwl3945_grab_nic_access() already obtained!
4557 static void iwl3945_print_event_log(struct iwl3945_priv
*priv
, u32 start_idx
,
4558 u32 num_events
, u32 mode
)
4561 u32 base
; /* SRAM byte address of event log header */
4562 u32 event_size
; /* 2 u32s, or 3 u32s if timestamp recorded */
4563 u32 ptr
; /* SRAM byte address of log data */
4564 u32 ev
, time
, data
; /* event log data */
4566 if (num_events
== 0)
4569 base
= le32_to_cpu(priv
->card_alive
.log_event_table_ptr
);
4572 event_size
= 2 * sizeof(u32
);
4574 event_size
= 3 * sizeof(u32
);
4576 ptr
= base
+ EVENT_START_OFFSET
+ (start_idx
* event_size
);
4578 /* "time" is actually "data" for mode 0 (no timestamp).
4579 * place event id # at far right for easier visual parsing. */
4580 for (i
= 0; i
< num_events
; i
++) {
4581 ev
= iwl3945_read_targ_mem(priv
, ptr
);
4583 time
= iwl3945_read_targ_mem(priv
, ptr
);
4586 IWL_ERROR("0x%08x\t%04u\n", time
, ev
); /* data, ev */
4588 data
= iwl3945_read_targ_mem(priv
, ptr
);
4590 IWL_ERROR("%010u\t0x%08x\t%04u\n", time
, data
, ev
);
4595 static void iwl3945_dump_nic_event_log(struct iwl3945_priv
*priv
)
4598 u32 base
; /* SRAM byte address of event log header */
4599 u32 capacity
; /* event log capacity in # entries */
4600 u32 mode
; /* 0 - no timestamp, 1 - timestamp recorded */
4601 u32 num_wraps
; /* # times uCode wrapped to top of log */
4602 u32 next_entry
; /* index of next entry to be written by uCode */
4603 u32 size
; /* # entries that we'll print */
4605 base
= le32_to_cpu(priv
->card_alive
.log_event_table_ptr
);
4606 if (!iwl3945_hw_valid_rtc_data_addr(base
)) {
4607 IWL_ERROR("Invalid event log pointer 0x%08X\n", base
);
4611 rc
= iwl3945_grab_nic_access(priv
);
4613 IWL_WARNING("Can not read from adapter at this time.\n");
4617 /* event log header */
4618 capacity
= iwl3945_read_targ_mem(priv
, base
);
4619 mode
= iwl3945_read_targ_mem(priv
, base
+ (1 * sizeof(u32
)));
4620 num_wraps
= iwl3945_read_targ_mem(priv
, base
+ (2 * sizeof(u32
)));
4621 next_entry
= iwl3945_read_targ_mem(priv
, base
+ (3 * sizeof(u32
)));
4623 size
= num_wraps
? capacity
: next_entry
;
4625 /* bail out if nothing in log */
4627 IWL_ERROR("Start IWL Event Log Dump: nothing in log\n");
4628 iwl3945_release_nic_access(priv
);
4632 IWL_ERROR("Start IWL Event Log Dump: display count %d, wraps %d\n",
4635 /* if uCode has wrapped back to top of log, start at the oldest entry,
4636 * i.e the next one that uCode would fill. */
4638 iwl3945_print_event_log(priv
, next_entry
,
4639 capacity
- next_entry
, mode
);
4641 /* (then/else) start at top of log */
4642 iwl3945_print_event_log(priv
, 0, next_entry
, mode
);
4644 iwl3945_release_nic_access(priv
);
4648 * iwl3945_irq_handle_error - called for HW or SW error interrupt from card
4650 static void iwl3945_irq_handle_error(struct iwl3945_priv
*priv
)
4652 /* Set the FW error flag -- cleared on iwl3945_down */
4653 set_bit(STATUS_FW_ERROR
, &priv
->status
);
4655 /* Cancel currently queued command. */
4656 clear_bit(STATUS_HCMD_ACTIVE
, &priv
->status
);
4658 #ifdef CONFIG_IWL3945_DEBUG
4659 if (iwl3945_debug_level
& IWL_DL_FW_ERRORS
) {
4660 iwl3945_dump_nic_error_log(priv
);
4661 iwl3945_dump_nic_event_log(priv
);
4662 iwl3945_print_rx_config_cmd(&priv
->staging_rxon
);
4666 wake_up_interruptible(&priv
->wait_command_queue
);
4668 /* Keep the restart process from trying to send host
4669 * commands by clearing the INIT status bit */
4670 clear_bit(STATUS_READY
, &priv
->status
);
4672 if (!test_bit(STATUS_EXIT_PENDING
, &priv
->status
)) {
4673 IWL_DEBUG(IWL_DL_INFO
| IWL_DL_FW_ERRORS
,
4674 "Restarting adapter due to uCode error.\n");
4676 if (iwl3945_is_associated(priv
)) {
4677 memcpy(&priv
->recovery_rxon
, &priv
->active_rxon
,
4678 sizeof(priv
->recovery_rxon
));
4679 priv
->error_recovering
= 1;
4681 queue_work(priv
->workqueue
, &priv
->restart
);
4685 static void iwl3945_error_recovery(struct iwl3945_priv
*priv
)
4687 unsigned long flags
;
4689 memcpy(&priv
->staging_rxon
, &priv
->recovery_rxon
,
4690 sizeof(priv
->staging_rxon
));
4691 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
4692 iwl3945_commit_rxon(priv
);
4694 iwl3945_add_station(priv
, priv
->bssid
, 1, 0);
4696 spin_lock_irqsave(&priv
->lock
, flags
);
4697 priv
->assoc_id
= le16_to_cpu(priv
->staging_rxon
.assoc_id
);
4698 priv
->error_recovering
= 0;
4699 spin_unlock_irqrestore(&priv
->lock
, flags
);
4702 static void iwl3945_irq_tasklet(struct iwl3945_priv
*priv
)
4704 u32 inta
, handled
= 0;
4706 unsigned long flags
;
4707 #ifdef CONFIG_IWL3945_DEBUG
4711 spin_lock_irqsave(&priv
->lock
, flags
);
4713 /* Ack/clear/reset pending uCode interrupts.
4714 * Note: Some bits in CSR_INT are "OR" of bits in CSR_FH_INT_STATUS,
4715 * and will clear only when CSR_FH_INT_STATUS gets cleared. */
4716 inta
= iwl3945_read32(priv
, CSR_INT
);
4717 iwl3945_write32(priv
, CSR_INT
, inta
);
4719 /* Ack/clear/reset pending flow-handler (DMA) interrupts.
4720 * Any new interrupts that happen after this, either while we're
4721 * in this tasklet, or later, will show up in next ISR/tasklet. */
4722 inta_fh
= iwl3945_read32(priv
, CSR_FH_INT_STATUS
);
4723 iwl3945_write32(priv
, CSR_FH_INT_STATUS
, inta_fh
);
4725 #ifdef CONFIG_IWL3945_DEBUG
4726 if (iwl3945_debug_level
& IWL_DL_ISR
) {
4727 /* just for debug */
4728 inta_mask
= iwl3945_read32(priv
, CSR_INT_MASK
);
4729 IWL_DEBUG_ISR("inta 0x%08x, enabled 0x%08x, fh 0x%08x\n",
4730 inta
, inta_mask
, inta_fh
);
4734 /* Since CSR_INT and CSR_FH_INT_STATUS reads and clears are not
4735 * atomic, make sure that inta covers all the interrupts that
4736 * we've discovered, even if FH interrupt came in just after
4737 * reading CSR_INT. */
4738 if (inta_fh
& CSR_FH_INT_RX_MASK
)
4739 inta
|= CSR_INT_BIT_FH_RX
;
4740 if (inta_fh
& CSR_FH_INT_TX_MASK
)
4741 inta
|= CSR_INT_BIT_FH_TX
;
4743 /* Now service all interrupt bits discovered above. */
4744 if (inta
& CSR_INT_BIT_HW_ERR
) {
4745 IWL_ERROR("Microcode HW error detected. Restarting.\n");
4747 /* Tell the device to stop sending interrupts */
4748 iwl3945_disable_interrupts(priv
);
4750 iwl3945_irq_handle_error(priv
);
4752 handled
|= CSR_INT_BIT_HW_ERR
;
4754 spin_unlock_irqrestore(&priv
->lock
, flags
);
4759 #ifdef CONFIG_IWL3945_DEBUG
4760 if (iwl3945_debug_level
& (IWL_DL_ISR
)) {
4761 /* NIC fires this, but we don't use it, redundant with WAKEUP */
4762 if (inta
& CSR_INT_BIT_SCD
)
4763 IWL_DEBUG_ISR("Scheduler finished to transmit "
4764 "the frame/frames.\n");
4766 /* Alive notification via Rx interrupt will do the real work */
4767 if (inta
& CSR_INT_BIT_ALIVE
)
4768 IWL_DEBUG_ISR("Alive interrupt\n");
4771 /* Safely ignore these bits for debug checks below */
4772 inta
&= ~(CSR_INT_BIT_SCD
| CSR_INT_BIT_ALIVE
);
4774 /* HW RF KILL switch toggled (4965 only) */
4775 if (inta
& CSR_INT_BIT_RF_KILL
) {
4777 if (!(iwl3945_read32(priv
, CSR_GP_CNTRL
) &
4778 CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW
))
4781 IWL_DEBUG(IWL_DL_INFO
| IWL_DL_RF_KILL
| IWL_DL_ISR
,
4782 "RF_KILL bit toggled to %s.\n",
4783 hw_rf_kill
? "disable radio":"enable radio");
4785 /* Queue restart only if RF_KILL switch was set to "kill"
4786 * when we loaded driver, and is now set to "enable".
4787 * After we're Alive, RF_KILL gets handled by
4788 * iwl_rx_card_state_notif() */
4789 if (!hw_rf_kill
&& !test_bit(STATUS_ALIVE
, &priv
->status
)) {
4790 clear_bit(STATUS_RF_KILL_HW
, &priv
->status
);
4791 queue_work(priv
->workqueue
, &priv
->restart
);
4794 handled
|= CSR_INT_BIT_RF_KILL
;
4797 /* Chip got too hot and stopped itself (4965 only) */
4798 if (inta
& CSR_INT_BIT_CT_KILL
) {
4799 IWL_ERROR("Microcode CT kill error detected.\n");
4800 handled
|= CSR_INT_BIT_CT_KILL
;
4803 /* Error detected by uCode */
4804 if (inta
& CSR_INT_BIT_SW_ERR
) {
4805 IWL_ERROR("Microcode SW error detected. Restarting 0x%X.\n",
4807 iwl3945_irq_handle_error(priv
);
4808 handled
|= CSR_INT_BIT_SW_ERR
;
4811 /* uCode wakes up after power-down sleep */
4812 if (inta
& CSR_INT_BIT_WAKEUP
) {
4813 IWL_DEBUG_ISR("Wakeup interrupt\n");
4814 iwl3945_rx_queue_update_write_ptr(priv
, &priv
->rxq
);
4815 iwl3945_tx_queue_update_write_ptr(priv
, &priv
->txq
[0]);
4816 iwl3945_tx_queue_update_write_ptr(priv
, &priv
->txq
[1]);
4817 iwl3945_tx_queue_update_write_ptr(priv
, &priv
->txq
[2]);
4818 iwl3945_tx_queue_update_write_ptr(priv
, &priv
->txq
[3]);
4819 iwl3945_tx_queue_update_write_ptr(priv
, &priv
->txq
[4]);
4820 iwl3945_tx_queue_update_write_ptr(priv
, &priv
->txq
[5]);
4822 handled
|= CSR_INT_BIT_WAKEUP
;
4825 /* All uCode command responses, including Tx command responses,
4826 * Rx "responses" (frame-received notification), and other
4827 * notifications from uCode come through here*/
4828 if (inta
& (CSR_INT_BIT_FH_RX
| CSR_INT_BIT_SW_RX
)) {
4829 iwl3945_rx_handle(priv
);
4830 handled
|= (CSR_INT_BIT_FH_RX
| CSR_INT_BIT_SW_RX
);
4833 if (inta
& CSR_INT_BIT_FH_TX
) {
4834 IWL_DEBUG_ISR("Tx interrupt\n");
4836 iwl3945_write32(priv
, CSR_FH_INT_STATUS
, (1 << 6));
4837 if (!iwl3945_grab_nic_access(priv
)) {
4838 iwl3945_write_direct32(priv
,
4840 (ALM_FH_SRVC_CHNL
), 0x0);
4841 iwl3945_release_nic_access(priv
);
4843 handled
|= CSR_INT_BIT_FH_TX
;
4846 if (inta
& ~handled
)
4847 IWL_ERROR("Unhandled INTA bits 0x%08x\n", inta
& ~handled
);
4849 if (inta
& ~CSR_INI_SET_MASK
) {
4850 IWL_WARNING("Disabled INTA bits 0x%08x were pending\n",
4851 inta
& ~CSR_INI_SET_MASK
);
4852 IWL_WARNING(" with FH_INT = 0x%08x\n", inta_fh
);
4855 /* Re-enable all interrupts */
4856 iwl3945_enable_interrupts(priv
);
4858 #ifdef CONFIG_IWL3945_DEBUG
4859 if (iwl3945_debug_level
& (IWL_DL_ISR
)) {
4860 inta
= iwl3945_read32(priv
, CSR_INT
);
4861 inta_mask
= iwl3945_read32(priv
, CSR_INT_MASK
);
4862 inta_fh
= iwl3945_read32(priv
, CSR_FH_INT_STATUS
);
4863 IWL_DEBUG_ISR("End inta 0x%08x, enabled 0x%08x, fh 0x%08x, "
4864 "flags 0x%08lx\n", inta
, inta_mask
, inta_fh
, flags
);
4867 spin_unlock_irqrestore(&priv
->lock
, flags
);
4870 static irqreturn_t
iwl3945_isr(int irq
, void *data
)
4872 struct iwl3945_priv
*priv
= data
;
4873 u32 inta
, inta_mask
;
4878 spin_lock(&priv
->lock
);
4880 /* Disable (but don't clear!) interrupts here to avoid
4881 * back-to-back ISRs and sporadic interrupts from our NIC.
4882 * If we have something to service, the tasklet will re-enable ints.
4883 * If we *don't* have something, we'll re-enable before leaving here. */
4884 inta_mask
= iwl3945_read32(priv
, CSR_INT_MASK
); /* just for debug */
4885 iwl3945_write32(priv
, CSR_INT_MASK
, 0x00000000);
4887 /* Discover which interrupts are active/pending */
4888 inta
= iwl3945_read32(priv
, CSR_INT
);
4889 inta_fh
= iwl3945_read32(priv
, CSR_FH_INT_STATUS
);
4891 /* Ignore interrupt if there's nothing in NIC to service.
4892 * This may be due to IRQ shared with another device,
4893 * or due to sporadic interrupts thrown from our NIC. */
4894 if (!inta
&& !inta_fh
) {
4895 IWL_DEBUG_ISR("Ignore interrupt, inta == 0, inta_fh == 0\n");
4899 if ((inta
== 0xFFFFFFFF) || ((inta
& 0xFFFFFFF0) == 0xa5a5a5a0)) {
4900 /* Hardware disappeared */
4901 IWL_WARNING("HARDWARE GONE?? INTA == 0x%080x\n", inta
);
4905 IWL_DEBUG_ISR("ISR inta 0x%08x, enabled 0x%08x, fh 0x%08x\n",
4906 inta
, inta_mask
, inta_fh
);
4908 inta
&= ~CSR_INT_BIT_SCD
;
4910 /* iwl3945_irq_tasklet() will service interrupts and re-enable them */
4911 if (likely(inta
|| inta_fh
))
4912 tasklet_schedule(&priv
->irq_tasklet
);
4914 spin_unlock(&priv
->lock
);
4919 /* re-enable interrupts here since we don't have anything to service. */
4920 iwl3945_enable_interrupts(priv
);
4921 spin_unlock(&priv
->lock
);
4925 /************************** EEPROM BANDS ****************************
4927 * The iwl3945_eeprom_band definitions below provide the mapping from the
4928 * EEPROM contents to the specific channel number supported for each
4931 * For example, iwl3945_priv->eeprom.band_3_channels[4] from the band_3
4932 * definition below maps to physical channel 42 in the 5.2GHz spectrum.
4933 * The specific geography and calibration information for that channel
4934 * is contained in the eeprom map itself.
4936 * During init, we copy the eeprom information and channel map
4937 * information into priv->channel_info_24/52 and priv->channel_map_24/52
4939 * channel_map_24/52 provides the index in the channel_info array for a
4940 * given channel. We have to have two separate maps as there is channel
4941 * overlap with the 2.4GHz and 5.2GHz spectrum as seen in band_1 and
4944 * A value of 0xff stored in the channel_map indicates that the channel
4945 * is not supported by the hardware at all.
4947 * A value of 0xfe in the channel_map indicates that the channel is not
4948 * valid for Tx with the current hardware. This means that
4949 * while the system can tune and receive on a given channel, it may not
4950 * be able to associate or transmit any frames on that
4951 * channel. There is no corresponding channel information for that
4954 *********************************************************************/
4957 static const u8 iwl3945_eeprom_band_1
[14] = {
4958 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14
4962 static const u8 iwl3945_eeprom_band_2
[] = { /* 4915-5080MHz */
4963 183, 184, 185, 187, 188, 189, 192, 196, 7, 8, 11, 12, 16
4966 static const u8 iwl3945_eeprom_band_3
[] = { /* 5170-5320MHz */
4967 34, 36, 38, 40, 42, 44, 46, 48, 52, 56, 60, 64
4970 static const u8 iwl3945_eeprom_band_4
[] = { /* 5500-5700MHz */
4971 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140
4974 static const u8 iwl3945_eeprom_band_5
[] = { /* 5725-5825MHz */
4975 145, 149, 153, 157, 161, 165
4978 static void iwl3945_init_band_reference(const struct iwl3945_priv
*priv
, int band
,
4979 int *eeprom_ch_count
,
4980 const struct iwl3945_eeprom_channel
4982 const u8
**eeprom_ch_index
)
4985 case 1: /* 2.4GHz band */
4986 *eeprom_ch_count
= ARRAY_SIZE(iwl3945_eeprom_band_1
);
4987 *eeprom_ch_info
= priv
->eeprom
.band_1_channels
;
4988 *eeprom_ch_index
= iwl3945_eeprom_band_1
;
4990 case 2: /* 4.9GHz band */
4991 *eeprom_ch_count
= ARRAY_SIZE(iwl3945_eeprom_band_2
);
4992 *eeprom_ch_info
= priv
->eeprom
.band_2_channels
;
4993 *eeprom_ch_index
= iwl3945_eeprom_band_2
;
4995 case 3: /* 5.2GHz band */
4996 *eeprom_ch_count
= ARRAY_SIZE(iwl3945_eeprom_band_3
);
4997 *eeprom_ch_info
= priv
->eeprom
.band_3_channels
;
4998 *eeprom_ch_index
= iwl3945_eeprom_band_3
;
5000 case 4: /* 5.5GHz band */
5001 *eeprom_ch_count
= ARRAY_SIZE(iwl3945_eeprom_band_4
);
5002 *eeprom_ch_info
= priv
->eeprom
.band_4_channels
;
5003 *eeprom_ch_index
= iwl3945_eeprom_band_4
;
5005 case 5: /* 5.7GHz band */
5006 *eeprom_ch_count
= ARRAY_SIZE(iwl3945_eeprom_band_5
);
5007 *eeprom_ch_info
= priv
->eeprom
.band_5_channels
;
5008 *eeprom_ch_index
= iwl3945_eeprom_band_5
;
5017 * iwl3945_get_channel_info - Find driver's private channel info
5019 * Based on band and channel number.
5021 const struct iwl3945_channel_info
*iwl3945_get_channel_info(const struct iwl3945_priv
*priv
,
5022 int phymode
, u16 channel
)
5027 case MODE_IEEE80211A
:
5028 for (i
= 14; i
< priv
->channel_count
; i
++) {
5029 if (priv
->channel_info
[i
].channel
== channel
)
5030 return &priv
->channel_info
[i
];
5034 case MODE_IEEE80211B
:
5035 case MODE_IEEE80211G
:
5036 if (channel
>= 1 && channel
<= 14)
5037 return &priv
->channel_info
[channel
- 1];
5045 #define CHECK_AND_PRINT(x) ((eeprom_ch_info[ch].flags & EEPROM_CHANNEL_##x) \
5049 * iwl3945_init_channel_map - Set up driver's info for all possible channels
5051 static int iwl3945_init_channel_map(struct iwl3945_priv
*priv
)
5053 int eeprom_ch_count
= 0;
5054 const u8
*eeprom_ch_index
= NULL
;
5055 const struct iwl3945_eeprom_channel
*eeprom_ch_info
= NULL
;
5057 struct iwl3945_channel_info
*ch_info
;
5059 if (priv
->channel_count
) {
5060 IWL_DEBUG_INFO("Channel map already initialized.\n");
5064 if (priv
->eeprom
.version
< 0x2f) {
5065 IWL_WARNING("Unsupported EEPROM version: 0x%04X\n",
5066 priv
->eeprom
.version
);
5070 IWL_DEBUG_INFO("Initializing regulatory info from EEPROM\n");
5072 priv
->channel_count
=
5073 ARRAY_SIZE(iwl3945_eeprom_band_1
) +
5074 ARRAY_SIZE(iwl3945_eeprom_band_2
) +
5075 ARRAY_SIZE(iwl3945_eeprom_band_3
) +
5076 ARRAY_SIZE(iwl3945_eeprom_band_4
) +
5077 ARRAY_SIZE(iwl3945_eeprom_band_5
);
5079 IWL_DEBUG_INFO("Parsing data for %d channels.\n", priv
->channel_count
);
5081 priv
->channel_info
= kzalloc(sizeof(struct iwl3945_channel_info
) *
5082 priv
->channel_count
, GFP_KERNEL
);
5083 if (!priv
->channel_info
) {
5084 IWL_ERROR("Could not allocate channel_info\n");
5085 priv
->channel_count
= 0;
5089 ch_info
= priv
->channel_info
;
5091 /* Loop through the 5 EEPROM bands adding them in order to the
5092 * channel map we maintain (that contains additional information than
5093 * what just in the EEPROM) */
5094 for (band
= 1; band
<= 5; band
++) {
5096 iwl3945_init_band_reference(priv
, band
, &eeprom_ch_count
,
5097 &eeprom_ch_info
, &eeprom_ch_index
);
5099 /* Loop through each band adding each of the channels */
5100 for (ch
= 0; ch
< eeprom_ch_count
; ch
++) {
5101 ch_info
->channel
= eeprom_ch_index
[ch
];
5102 ch_info
->phymode
= (band
== 1) ? MODE_IEEE80211B
:
5105 /* permanently store EEPROM's channel regulatory flags
5106 * and max power in channel info database. */
5107 ch_info
->eeprom
= eeprom_ch_info
[ch
];
5109 /* Copy the run-time flags so they are there even on
5110 * invalid channels */
5111 ch_info
->flags
= eeprom_ch_info
[ch
].flags
;
5113 if (!(is_channel_valid(ch_info
))) {
5114 IWL_DEBUG_INFO("Ch. %d Flags %x [%sGHz] - "
5118 is_channel_a_band(ch_info
) ?
5124 /* Initialize regulatory-based run-time data */
5125 ch_info
->max_power_avg
= ch_info
->curr_txpow
=
5126 eeprom_ch_info
[ch
].max_power_avg
;
5127 ch_info
->scan_power
= eeprom_ch_info
[ch
].max_power_avg
;
5128 ch_info
->min_power
= 0;
5130 IWL_DEBUG_INFO("Ch. %d [%sGHz] %s%s%s%s%s%s(0x%02x"
5131 " %ddBm): Ad-Hoc %ssupported\n",
5133 is_channel_a_band(ch_info
) ?
5135 CHECK_AND_PRINT(IBSS
),
5136 CHECK_AND_PRINT(ACTIVE
),
5137 CHECK_AND_PRINT(RADAR
),
5138 CHECK_AND_PRINT(WIDE
),
5139 CHECK_AND_PRINT(NARROW
),
5140 CHECK_AND_PRINT(DFS
),
5141 eeprom_ch_info
[ch
].flags
,
5142 eeprom_ch_info
[ch
].max_power_avg
,
5143 ((eeprom_ch_info
[ch
].
5144 flags
& EEPROM_CHANNEL_IBSS
)
5145 && !(eeprom_ch_info
[ch
].
5146 flags
& EEPROM_CHANNEL_RADAR
))
5149 /* Set the user_txpower_limit to the highest power
5150 * supported by any channel */
5151 if (eeprom_ch_info
[ch
].max_power_avg
>
5152 priv
->user_txpower_limit
)
5153 priv
->user_txpower_limit
=
5154 eeprom_ch_info
[ch
].max_power_avg
;
5160 /* Set up txpower settings in driver for all channels */
5161 if (iwl3945_txpower_set_from_eeprom(priv
))
5168 * iwl3945_free_channel_map - undo allocations in iwl3945_init_channel_map
5170 static void iwl3945_free_channel_map(struct iwl3945_priv
*priv
)
5172 kfree(priv
->channel_info
);
5173 priv
->channel_count
= 0;
5176 /* For active scan, listen ACTIVE_DWELL_TIME (msec) on each channel after
5177 * sending probe req. This should be set long enough to hear probe responses
5178 * from more than one AP. */
5179 #define IWL_ACTIVE_DWELL_TIME_24 (20) /* all times in msec */
5180 #define IWL_ACTIVE_DWELL_TIME_52 (10)
5182 /* For faster active scanning, scan will move to the next channel if fewer than
5183 * PLCP_QUIET_THRESH packets are heard on this channel within
5184 * ACTIVE_QUIET_TIME after sending probe request. This shortens the dwell
5185 * time if it's a quiet channel (nothing responded to our probe, and there's
5186 * no other traffic).
5187 * Disable "quiet" feature by setting PLCP_QUIET_THRESH to 0. */
5188 #define IWL_PLCP_QUIET_THRESH __constant_cpu_to_le16(1) /* packets */
5189 #define IWL_ACTIVE_QUIET_TIME __constant_cpu_to_le16(5) /* msec */
5191 /* For passive scan, listen PASSIVE_DWELL_TIME (msec) on each channel.
5192 * Must be set longer than active dwell time.
5193 * For the most reliable scan, set > AP beacon interval (typically 100msec). */
5194 #define IWL_PASSIVE_DWELL_TIME_24 (20) /* all times in msec */
5195 #define IWL_PASSIVE_DWELL_TIME_52 (10)
5196 #define IWL_PASSIVE_DWELL_BASE (100)
5197 #define IWL_CHANNEL_TUNE_TIME 5
5199 static inline u16
iwl3945_get_active_dwell_time(struct iwl3945_priv
*priv
, int phymode
)
5201 if (phymode
== MODE_IEEE80211A
)
5202 return IWL_ACTIVE_DWELL_TIME_52
;
5204 return IWL_ACTIVE_DWELL_TIME_24
;
5207 static u16
iwl3945_get_passive_dwell_time(struct iwl3945_priv
*priv
, int phymode
)
5209 u16 active
= iwl3945_get_active_dwell_time(priv
, phymode
);
5210 u16 passive
= (phymode
!= MODE_IEEE80211A
) ?
5211 IWL_PASSIVE_DWELL_BASE
+ IWL_PASSIVE_DWELL_TIME_24
:
5212 IWL_PASSIVE_DWELL_BASE
+ IWL_PASSIVE_DWELL_TIME_52
;
5214 if (iwl3945_is_associated(priv
)) {
5215 /* If we're associated, we clamp the maximum passive
5216 * dwell time to be 98% of the beacon interval (minus
5217 * 2 * channel tune time) */
5218 passive
= priv
->beacon_int
;
5219 if ((passive
> IWL_PASSIVE_DWELL_BASE
) || !passive
)
5220 passive
= IWL_PASSIVE_DWELL_BASE
;
5221 passive
= (passive
* 98) / 100 - IWL_CHANNEL_TUNE_TIME
* 2;
5224 if (passive
<= active
)
5225 passive
= active
+ 1;
5230 static int iwl3945_get_channels_for_scan(struct iwl3945_priv
*priv
, int phymode
,
5231 u8 is_active
, u8 direct_mask
,
5232 struct iwl3945_scan_channel
*scan_ch
)
5234 const struct ieee80211_channel
*channels
= NULL
;
5235 const struct ieee80211_hw_mode
*hw_mode
;
5236 const struct iwl3945_channel_info
*ch_info
;
5237 u16 passive_dwell
= 0;
5238 u16 active_dwell
= 0;
5241 hw_mode
= iwl3945_get_hw_mode(priv
, phymode
);
5245 channels
= hw_mode
->channels
;
5247 active_dwell
= iwl3945_get_active_dwell_time(priv
, phymode
);
5248 passive_dwell
= iwl3945_get_passive_dwell_time(priv
, phymode
);
5250 for (i
= 0, added
= 0; i
< hw_mode
->num_channels
; i
++) {
5251 if (channels
[i
].chan
==
5252 le16_to_cpu(priv
->active_rxon
.channel
)) {
5253 if (iwl3945_is_associated(priv
)) {
5255 ("Skipping current channel %d\n",
5256 le16_to_cpu(priv
->active_rxon
.channel
));
5259 } else if (priv
->only_active_channel
)
5262 scan_ch
->channel
= channels
[i
].chan
;
5264 ch_info
= iwl3945_get_channel_info(priv
, phymode
, scan_ch
->channel
);
5265 if (!is_channel_valid(ch_info
)) {
5266 IWL_DEBUG_SCAN("Channel %d is INVALID for this SKU.\n",
5271 if (!is_active
|| is_channel_passive(ch_info
) ||
5272 !(channels
[i
].flag
& IEEE80211_CHAN_W_ACTIVE_SCAN
))
5273 scan_ch
->type
= 0; /* passive */
5275 scan_ch
->type
= 1; /* active */
5277 if (scan_ch
->type
& 1)
5278 scan_ch
->type
|= (direct_mask
<< 1);
5280 if (is_channel_narrow(ch_info
))
5281 scan_ch
->type
|= (1 << 7);
5283 scan_ch
->active_dwell
= cpu_to_le16(active_dwell
);
5284 scan_ch
->passive_dwell
= cpu_to_le16(passive_dwell
);
5286 /* Set txpower levels to defaults */
5287 scan_ch
->tpc
.dsp_atten
= 110;
5288 /* scan_pwr_info->tpc.dsp_atten; */
5290 /*scan_pwr_info->tpc.tx_gain; */
5291 if (phymode
== MODE_IEEE80211A
)
5292 scan_ch
->tpc
.tx_gain
= ((1 << 5) | (3 << 3)) | 3;
5294 scan_ch
->tpc
.tx_gain
= ((1 << 5) | (5 << 3));
5295 /* NOTE: if we were doing 6Mb OFDM for scans we'd use
5297 * scan_ch->tpc.tx_gain = ((1 << 5) | (2 << 3)) | 3;
5301 IWL_DEBUG_SCAN("Scanning %d [%s %d]\n",
5303 (scan_ch
->type
& 1) ? "ACTIVE" : "PASSIVE",
5304 (scan_ch
->type
& 1) ?
5305 active_dwell
: passive_dwell
);
5311 IWL_DEBUG_SCAN("total channels to scan %d \n", added
);
5315 static void iwl3945_reset_channel_flag(struct iwl3945_priv
*priv
)
5318 for (i
= 0; i
< 3; i
++) {
5319 struct ieee80211_hw_mode
*hw_mode
= (void *)&priv
->modes
[i
];
5320 for (j
= 0; j
< hw_mode
->num_channels
; j
++)
5321 hw_mode
->channels
[j
].flag
= hw_mode
->channels
[j
].val
;
5325 static void iwl3945_init_hw_rates(struct iwl3945_priv
*priv
,
5326 struct ieee80211_rate
*rates
)
5330 for (i
= 0; i
< IWL_RATE_COUNT
; i
++) {
5331 rates
[i
].rate
= iwl3945_rates
[i
].ieee
* 5;
5332 rates
[i
].val
= i
; /* Rate scaling will work on indexes */
5334 rates
[i
].flags
= IEEE80211_RATE_SUPPORTED
;
5335 /* Only OFDM have the bits-per-symbol set */
5336 if ((i
<= IWL_LAST_OFDM_RATE
) && (i
>= IWL_FIRST_OFDM_RATE
))
5337 rates
[i
].flags
|= IEEE80211_RATE_OFDM
;
5340 * If CCK 1M then set rate flag to CCK else CCK_2
5341 * which is CCK | PREAMBLE2
5343 rates
[i
].flags
|= (iwl3945_rates
[i
].plcp
== 10) ?
5344 IEEE80211_RATE_CCK
: IEEE80211_RATE_CCK_2
;
5347 /* Set up which ones are basic rates... */
5348 if (IWL_BASIC_RATES_MASK
& (1 << i
))
5349 rates
[i
].flags
|= IEEE80211_RATE_BASIC
;
5354 * iwl3945_init_geos - Initialize mac80211's geo/channel info based from eeprom
5356 static int iwl3945_init_geos(struct iwl3945_priv
*priv
)
5358 struct iwl3945_channel_info
*ch
;
5359 struct ieee80211_hw_mode
*modes
;
5360 struct ieee80211_channel
*channels
;
5361 struct ieee80211_channel
*geo_ch
;
5362 struct ieee80211_rate
*rates
;
5372 IWL_DEBUG_INFO("Geography modes already initialized.\n");
5373 set_bit(STATUS_GEO_CONFIGURED
, &priv
->status
);
5377 modes
= kzalloc(sizeof(struct ieee80211_hw_mode
) * mode_count
,
5382 channels
= kzalloc(sizeof(struct ieee80211_channel
) *
5383 priv
->channel_count
, GFP_KERNEL
);
5389 rates
= kzalloc((sizeof(struct ieee80211_rate
) * (IWL_MAX_RATES
+ 1)),
5402 /* 5.2GHz channels start after the 2.4GHz channels */
5403 modes
[A
].mode
= MODE_IEEE80211A
;
5404 modes
[A
].channels
= &channels
[ARRAY_SIZE(iwl3945_eeprom_band_1
)];
5405 modes
[A
].rates
= &rates
[4];
5406 modes
[A
].num_rates
= 8; /* just OFDM */
5407 modes
[A
].num_channels
= 0;
5409 modes
[B
].mode
= MODE_IEEE80211B
;
5410 modes
[B
].channels
= channels
;
5411 modes
[B
].rates
= rates
;
5412 modes
[B
].num_rates
= 4; /* just CCK */
5413 modes
[B
].num_channels
= 0;
5415 modes
[G
].mode
= MODE_IEEE80211G
;
5416 modes
[G
].channels
= channels
;
5417 modes
[G
].rates
= rates
;
5418 modes
[G
].num_rates
= 12; /* OFDM & CCK */
5419 modes
[G
].num_channels
= 0;
5421 priv
->ieee_channels
= channels
;
5422 priv
->ieee_rates
= rates
;
5424 iwl3945_init_hw_rates(priv
, rates
);
5426 for (i
= 0, geo_ch
= channels
; i
< priv
->channel_count
; i
++) {
5427 ch
= &priv
->channel_info
[i
];
5429 if (!is_channel_valid(ch
)) {
5430 IWL_DEBUG_INFO("Channel %d [%sGHz] is restricted -- "
5432 ch
->channel
, is_channel_a_band(ch
) ?
5437 if (is_channel_a_band(ch
))
5438 geo_ch
= &modes
[A
].channels
[modes
[A
].num_channels
++];
5440 geo_ch
= &modes
[B
].channels
[modes
[B
].num_channels
++];
5441 modes
[G
].num_channels
++;
5444 geo_ch
->freq
= ieee80211chan2mhz(ch
->channel
);
5445 geo_ch
->chan
= ch
->channel
;
5446 geo_ch
->power_level
= ch
->max_power_avg
;
5447 geo_ch
->antenna_max
= 0xff;
5449 if (is_channel_valid(ch
)) {
5450 geo_ch
->flag
= IEEE80211_CHAN_W_SCAN
;
5451 if (ch
->flags
& EEPROM_CHANNEL_IBSS
)
5452 geo_ch
->flag
|= IEEE80211_CHAN_W_IBSS
;
5454 if (ch
->flags
& EEPROM_CHANNEL_ACTIVE
)
5455 geo_ch
->flag
|= IEEE80211_CHAN_W_ACTIVE_SCAN
;
5457 if (ch
->flags
& EEPROM_CHANNEL_RADAR
)
5458 geo_ch
->flag
|= IEEE80211_CHAN_W_RADAR_DETECT
;
5460 if (ch
->max_power_avg
> priv
->max_channel_txpower_limit
)
5461 priv
->max_channel_txpower_limit
=
5465 geo_ch
->val
= geo_ch
->flag
;
5468 if ((modes
[A
].num_channels
== 0) && priv
->is_abg
) {
5469 printk(KERN_INFO DRV_NAME
5470 ": Incorrectly detected BG card as ABG. Please send "
5471 "your PCI ID 0x%04X:0x%04X to maintainer.\n",
5472 priv
->pci_dev
->device
, priv
->pci_dev
->subsystem_device
);
5476 printk(KERN_INFO DRV_NAME
5477 ": Tunable channels: %d 802.11bg, %d 802.11a channels\n",
5478 modes
[G
].num_channels
, modes
[A
].num_channels
);
5481 * NOTE: We register these in preference of order -- the
5482 * stack doesn't currently (as of 7.0.6 / Apr 24 '07) pick
5483 * a phymode based on rates or AP capabilities but seems to
5484 * configure it purely on if the channel being configured
5485 * is supported by a mode -- and the first match is taken
5488 if (modes
[G
].num_channels
)
5489 ieee80211_register_hwmode(priv
->hw
, &modes
[G
]);
5490 if (modes
[B
].num_channels
)
5491 ieee80211_register_hwmode(priv
->hw
, &modes
[B
]);
5492 if (modes
[A
].num_channels
)
5493 ieee80211_register_hwmode(priv
->hw
, &modes
[A
]);
5495 priv
->modes
= modes
;
5496 set_bit(STATUS_GEO_CONFIGURED
, &priv
->status
);
5502 * iwl3945_free_geos - undo allocations in iwl3945_init_geos
5504 static void iwl3945_free_geos(struct iwl3945_priv
*priv
)
5507 kfree(priv
->ieee_channels
);
5508 kfree(priv
->ieee_rates
);
5509 clear_bit(STATUS_GEO_CONFIGURED
, &priv
->status
);
5512 /******************************************************************************
5514 * uCode download functions
5516 ******************************************************************************/
5518 static void iwl3945_dealloc_ucode_pci(struct iwl3945_priv
*priv
)
5520 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_code
);
5521 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_data
);
5522 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_data_backup
);
5523 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_init
);
5524 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_init_data
);
5525 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_boot
);
5529 * iwl3945_verify_inst_full - verify runtime uCode image in card vs. host,
5530 * looking at all data.
5532 static int iwl3945_verify_inst_full(struct iwl3945_priv
*priv
, __le32
* image
, u32 len
)
5539 IWL_DEBUG_INFO("ucode inst image size is %u\n", len
);
5541 rc
= iwl3945_grab_nic_access(priv
);
5545 iwl3945_write_direct32(priv
, HBUS_TARG_MEM_RADDR
, RTC_INST_LOWER_BOUND
);
5548 for (; len
> 0; len
-= sizeof(u32
), image
++) {
5549 /* read data comes through single port, auto-incr addr */
5550 /* NOTE: Use the debugless read so we don't flood kernel log
5551 * if IWL_DL_IO is set */
5552 val
= _iwl3945_read_direct32(priv
, HBUS_TARG_MEM_RDAT
);
5553 if (val
!= le32_to_cpu(*image
)) {
5554 IWL_ERROR("uCode INST section is invalid at "
5555 "offset 0x%x, is 0x%x, s/b 0x%x\n",
5556 save_len
- len
, val
, le32_to_cpu(*image
));
5564 iwl3945_release_nic_access(priv
);
5567 IWL_DEBUG_INFO("ucode image in INSTRUCTION memory is good\n");
5574 * iwl3945_verify_inst_sparse - verify runtime uCode image in card vs. host,
5575 * using sample data 100 bytes apart. If these sample points are good,
5576 * it's a pretty good bet that everything between them is good, too.
5578 static int iwl3945_verify_inst_sparse(struct iwl3945_priv
*priv
, __le32
*image
, u32 len
)
5585 IWL_DEBUG_INFO("ucode inst image size is %u\n", len
);
5587 rc
= iwl3945_grab_nic_access(priv
);
5591 for (i
= 0; i
< len
; i
+= 100, image
+= 100/sizeof(u32
)) {
5592 /* read data comes through single port, auto-incr addr */
5593 /* NOTE: Use the debugless read so we don't flood kernel log
5594 * if IWL_DL_IO is set */
5595 iwl3945_write_direct32(priv
, HBUS_TARG_MEM_RADDR
,
5596 i
+ RTC_INST_LOWER_BOUND
);
5597 val
= _iwl3945_read_direct32(priv
, HBUS_TARG_MEM_RDAT
);
5598 if (val
!= le32_to_cpu(*image
)) {
5599 #if 0 /* Enable this if you want to see details */
5600 IWL_ERROR("uCode INST section is invalid at "
5601 "offset 0x%x, is 0x%x, s/b 0x%x\n",
5611 iwl3945_release_nic_access(priv
);
5618 * iwl3945_verify_ucode - determine which instruction image is in SRAM,
5619 * and verify its contents
5621 static int iwl3945_verify_ucode(struct iwl3945_priv
*priv
)
5628 image
= (__le32
*)priv
->ucode_boot
.v_addr
;
5629 len
= priv
->ucode_boot
.len
;
5630 rc
= iwl3945_verify_inst_sparse(priv
, image
, len
);
5632 IWL_DEBUG_INFO("Bootstrap uCode is good in inst SRAM\n");
5636 /* Try initialize */
5637 image
= (__le32
*)priv
->ucode_init
.v_addr
;
5638 len
= priv
->ucode_init
.len
;
5639 rc
= iwl3945_verify_inst_sparse(priv
, image
, len
);
5641 IWL_DEBUG_INFO("Initialize uCode is good in inst SRAM\n");
5645 /* Try runtime/protocol */
5646 image
= (__le32
*)priv
->ucode_code
.v_addr
;
5647 len
= priv
->ucode_code
.len
;
5648 rc
= iwl3945_verify_inst_sparse(priv
, image
, len
);
5650 IWL_DEBUG_INFO("Runtime uCode is good in inst SRAM\n");
5654 IWL_ERROR("NO VALID UCODE IMAGE IN INSTRUCTION SRAM!!\n");
5656 /* Since nothing seems to match, show first several data entries in
5657 * instruction SRAM, so maybe visual inspection will give a clue.
5658 * Selection of bootstrap image (vs. other images) is arbitrary. */
5659 image
= (__le32
*)priv
->ucode_boot
.v_addr
;
5660 len
= priv
->ucode_boot
.len
;
5661 rc
= iwl3945_verify_inst_full(priv
, image
, len
);
5667 /* check contents of special bootstrap uCode SRAM */
5668 static int iwl3945_verify_bsm(struct iwl3945_priv
*priv
)
5670 __le32
*image
= priv
->ucode_boot
.v_addr
;
5671 u32 len
= priv
->ucode_boot
.len
;
5675 IWL_DEBUG_INFO("Begin verify bsm\n");
5677 /* verify BSM SRAM contents */
5678 val
= iwl3945_read_prph(priv
, BSM_WR_DWCOUNT_REG
);
5679 for (reg
= BSM_SRAM_LOWER_BOUND
;
5680 reg
< BSM_SRAM_LOWER_BOUND
+ len
;
5681 reg
+= sizeof(u32
), image
++) {
5682 val
= iwl3945_read_prph(priv
, reg
);
5683 if (val
!= le32_to_cpu(*image
)) {
5684 IWL_ERROR("BSM uCode verification failed at "
5685 "addr 0x%08X+%u (of %u), is 0x%x, s/b 0x%x\n",
5686 BSM_SRAM_LOWER_BOUND
,
5687 reg
- BSM_SRAM_LOWER_BOUND
, len
,
5688 val
, le32_to_cpu(*image
));
5693 IWL_DEBUG_INFO("BSM bootstrap uCode image OK\n");
5699 * iwl3945_load_bsm - Load bootstrap instructions
5703 * The Bootstrap State Machine (BSM) stores a short bootstrap uCode program
5704 * in special SRAM that does not power down during RFKILL. When powering back
5705 * up after power-saving sleeps (or during initial uCode load), the BSM loads
5706 * the bootstrap program into the on-board processor, and starts it.
5708 * The bootstrap program loads (via DMA) instructions and data for a new
5709 * program from host DRAM locations indicated by the host driver in the
5710 * BSM_DRAM_* registers. Once the new program is loaded, it starts
5713 * When initializing the NIC, the host driver points the BSM to the
5714 * "initialize" uCode image. This uCode sets up some internal data, then
5715 * notifies host via "initialize alive" that it is complete.
5717 * The host then replaces the BSM_DRAM_* pointer values to point to the
5718 * normal runtime uCode instructions and a backup uCode data cache buffer
5719 * (filled initially with starting data values for the on-board processor),
5720 * then triggers the "initialize" uCode to load and launch the runtime uCode,
5721 * which begins normal operation.
5723 * When doing a power-save shutdown, runtime uCode saves data SRAM into
5724 * the backup data cache in DRAM before SRAM is powered down.
5726 * When powering back up, the BSM loads the bootstrap program. This reloads
5727 * the runtime uCode instructions and the backup data cache into SRAM,
5728 * and re-launches the runtime uCode from where it left off.
5730 static int iwl3945_load_bsm(struct iwl3945_priv
*priv
)
5732 __le32
*image
= priv
->ucode_boot
.v_addr
;
5733 u32 len
= priv
->ucode_boot
.len
;
5743 IWL_DEBUG_INFO("Begin load bsm\n");
5745 /* make sure bootstrap program is no larger than BSM's SRAM size */
5746 if (len
> IWL_MAX_BSM_SIZE
)
5749 /* Tell bootstrap uCode where to find the "Initialize" uCode
5750 * in host DRAM ... host DRAM physical address bits 31:0 for 3945.
5751 * NOTE: iwl3945_initialize_alive_start() will replace these values,
5752 * after the "initialize" uCode has run, to point to
5753 * runtime/protocol instructions and backup data cache. */
5754 pinst
= priv
->ucode_init
.p_addr
;
5755 pdata
= priv
->ucode_init_data
.p_addr
;
5756 inst_len
= priv
->ucode_init
.len
;
5757 data_len
= priv
->ucode_init_data
.len
;
5759 rc
= iwl3945_grab_nic_access(priv
);
5763 iwl3945_write_prph(priv
, BSM_DRAM_INST_PTR_REG
, pinst
);
5764 iwl3945_write_prph(priv
, BSM_DRAM_DATA_PTR_REG
, pdata
);
5765 iwl3945_write_prph(priv
, BSM_DRAM_INST_BYTECOUNT_REG
, inst_len
);
5766 iwl3945_write_prph(priv
, BSM_DRAM_DATA_BYTECOUNT_REG
, data_len
);
5768 /* Fill BSM memory with bootstrap instructions */
5769 for (reg_offset
= BSM_SRAM_LOWER_BOUND
;
5770 reg_offset
< BSM_SRAM_LOWER_BOUND
+ len
;
5771 reg_offset
+= sizeof(u32
), image
++)
5772 _iwl3945_write_prph(priv
, reg_offset
,
5773 le32_to_cpu(*image
));
5775 rc
= iwl3945_verify_bsm(priv
);
5777 iwl3945_release_nic_access(priv
);
5781 /* Tell BSM to copy from BSM SRAM into instruction SRAM, when asked */
5782 iwl3945_write_prph(priv
, BSM_WR_MEM_SRC_REG
, 0x0);
5783 iwl3945_write_prph(priv
, BSM_WR_MEM_DST_REG
,
5784 RTC_INST_LOWER_BOUND
);
5785 iwl3945_write_prph(priv
, BSM_WR_DWCOUNT_REG
, len
/ sizeof(u32
));
5787 /* Load bootstrap code into instruction SRAM now,
5788 * to prepare to load "initialize" uCode */
5789 iwl3945_write_prph(priv
, BSM_WR_CTRL_REG
,
5790 BSM_WR_CTRL_REG_BIT_START
);
5792 /* Wait for load of bootstrap uCode to finish */
5793 for (i
= 0; i
< 100; i
++) {
5794 done
= iwl3945_read_prph(priv
, BSM_WR_CTRL_REG
);
5795 if (!(done
& BSM_WR_CTRL_REG_BIT_START
))
5800 IWL_DEBUG_INFO("BSM write complete, poll %d iterations\n", i
);
5802 IWL_ERROR("BSM write did not complete!\n");
5806 /* Enable future boot loads whenever power management unit triggers it
5807 * (e.g. when powering back up after power-save shutdown) */
5808 iwl3945_write_prph(priv
, BSM_WR_CTRL_REG
,
5809 BSM_WR_CTRL_REG_BIT_START_EN
);
5811 iwl3945_release_nic_access(priv
);
5816 static void iwl3945_nic_start(struct iwl3945_priv
*priv
)
5818 /* Remove all resets to allow NIC to operate */
5819 iwl3945_write32(priv
, CSR_RESET
, 0);
5823 * iwl3945_read_ucode - Read uCode images from disk file.
5825 * Copy into buffers for card to fetch via bus-mastering
5827 static int iwl3945_read_ucode(struct iwl3945_priv
*priv
)
5829 struct iwl3945_ucode
*ucode
;
5831 const struct firmware
*ucode_raw
;
5832 /* firmware file name contains uCode/driver compatibility version */
5833 const char *name
= "iwlwifi-3945" IWL3945_UCODE_API
".ucode";
5836 u32 ver
, inst_size
, data_size
, init_size
, init_data_size
, boot_size
;
5838 /* Ask kernel firmware_class module to get the boot firmware off disk.
5839 * request_firmware() is synchronous, file is in memory on return. */
5840 ret
= request_firmware(&ucode_raw
, name
, &priv
->pci_dev
->dev
);
5842 IWL_ERROR("%s firmware file req failed: Reason %d\n",
5847 IWL_DEBUG_INFO("Got firmware '%s' file (%zd bytes) from disk\n",
5848 name
, ucode_raw
->size
);
5850 /* Make sure that we got at least our header! */
5851 if (ucode_raw
->size
< sizeof(*ucode
)) {
5852 IWL_ERROR("File size way too small!\n");
5857 /* Data from ucode file: header followed by uCode images */
5858 ucode
= (void *)ucode_raw
->data
;
5860 ver
= le32_to_cpu(ucode
->ver
);
5861 inst_size
= le32_to_cpu(ucode
->inst_size
);
5862 data_size
= le32_to_cpu(ucode
->data_size
);
5863 init_size
= le32_to_cpu(ucode
->init_size
);
5864 init_data_size
= le32_to_cpu(ucode
->init_data_size
);
5865 boot_size
= le32_to_cpu(ucode
->boot_size
);
5867 IWL_DEBUG_INFO("f/w package hdr ucode version = 0x%x\n", ver
);
5868 IWL_DEBUG_INFO("f/w package hdr runtime inst size = %u\n", inst_size
);
5869 IWL_DEBUG_INFO("f/w package hdr runtime data size = %u\n", data_size
);
5870 IWL_DEBUG_INFO("f/w package hdr init inst size = %u\n", init_size
);
5871 IWL_DEBUG_INFO("f/w package hdr init data size = %u\n", init_data_size
);
5872 IWL_DEBUG_INFO("f/w package hdr boot inst size = %u\n", boot_size
);
5874 /* Verify size of file vs. image size info in file's header */
5875 if (ucode_raw
->size
< sizeof(*ucode
) +
5876 inst_size
+ data_size
+ init_size
+
5877 init_data_size
+ boot_size
) {
5879 IWL_DEBUG_INFO("uCode file size %d too small\n",
5880 (int)ucode_raw
->size
);
5885 /* Verify that uCode images will fit in card's SRAM */
5886 if (inst_size
> IWL_MAX_INST_SIZE
) {
5887 IWL_DEBUG_INFO("uCode instr len %d too large to fit in\n",
5893 if (data_size
> IWL_MAX_DATA_SIZE
) {
5894 IWL_DEBUG_INFO("uCode data len %d too large to fit in\n",
5899 if (init_size
> IWL_MAX_INST_SIZE
) {
5900 IWL_DEBUG_INFO("uCode init instr len %d too large to fit in\n",
5905 if (init_data_size
> IWL_MAX_DATA_SIZE
) {
5906 IWL_DEBUG_INFO("uCode init data len %d too large to fit in\n",
5911 if (boot_size
> IWL_MAX_BSM_SIZE
) {
5912 IWL_DEBUG_INFO("uCode boot instr len %d too large to fit in\n",
5918 /* Allocate ucode buffers for card's bus-master loading ... */
5920 /* Runtime instructions and 2 copies of data:
5921 * 1) unmodified from disk
5922 * 2) backup cache for save/restore during power-downs */
5923 priv
->ucode_code
.len
= inst_size
;
5924 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_code
);
5926 priv
->ucode_data
.len
= data_size
;
5927 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_data
);
5929 priv
->ucode_data_backup
.len
= data_size
;
5930 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_data_backup
);
5932 if (!priv
->ucode_code
.v_addr
|| !priv
->ucode_data
.v_addr
||
5933 !priv
->ucode_data_backup
.v_addr
)
5936 /* Initialization instructions and data */
5937 if (init_size
&& init_data_size
) {
5938 priv
->ucode_init
.len
= init_size
;
5939 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_init
);
5941 priv
->ucode_init_data
.len
= init_data_size
;
5942 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_init_data
);
5944 if (!priv
->ucode_init
.v_addr
|| !priv
->ucode_init_data
.v_addr
)
5948 /* Bootstrap (instructions only, no data) */
5950 priv
->ucode_boot
.len
= boot_size
;
5951 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_boot
);
5953 if (!priv
->ucode_boot
.v_addr
)
5957 /* Copy images into buffers for card's bus-master reads ... */
5959 /* Runtime instructions (first block of data in file) */
5960 src
= &ucode
->data
[0];
5961 len
= priv
->ucode_code
.len
;
5962 IWL_DEBUG_INFO("Copying (but not loading) uCode instr len %Zd\n", len
);
5963 memcpy(priv
->ucode_code
.v_addr
, src
, len
);
5964 IWL_DEBUG_INFO("uCode instr buf vaddr = 0x%p, paddr = 0x%08x\n",
5965 priv
->ucode_code
.v_addr
, (u32
)priv
->ucode_code
.p_addr
);
5967 /* Runtime data (2nd block)
5968 * NOTE: Copy into backup buffer will be done in iwl3945_up() */
5969 src
= &ucode
->data
[inst_size
];
5970 len
= priv
->ucode_data
.len
;
5971 IWL_DEBUG_INFO("Copying (but not loading) uCode data len %Zd\n", len
);
5972 memcpy(priv
->ucode_data
.v_addr
, src
, len
);
5973 memcpy(priv
->ucode_data_backup
.v_addr
, src
, len
);
5975 /* Initialization instructions (3rd block) */
5977 src
= &ucode
->data
[inst_size
+ data_size
];
5978 len
= priv
->ucode_init
.len
;
5979 IWL_DEBUG_INFO("Copying (but not loading) init instr len %Zd\n",
5981 memcpy(priv
->ucode_init
.v_addr
, src
, len
);
5984 /* Initialization data (4th block) */
5985 if (init_data_size
) {
5986 src
= &ucode
->data
[inst_size
+ data_size
+ init_size
];
5987 len
= priv
->ucode_init_data
.len
;
5988 IWL_DEBUG_INFO("Copying (but not loading) init data len %d\n",
5990 memcpy(priv
->ucode_init_data
.v_addr
, src
, len
);
5993 /* Bootstrap instructions (5th block) */
5994 src
= &ucode
->data
[inst_size
+ data_size
+ init_size
+ init_data_size
];
5995 len
= priv
->ucode_boot
.len
;
5996 IWL_DEBUG_INFO("Copying (but not loading) boot instr len %d\n",
5998 memcpy(priv
->ucode_boot
.v_addr
, src
, len
);
6000 /* We have our copies now, allow OS release its copies */
6001 release_firmware(ucode_raw
);
6005 IWL_ERROR("failed to allocate pci memory\n");
6007 iwl3945_dealloc_ucode_pci(priv
);
6010 release_firmware(ucode_raw
);
6018 * iwl3945_set_ucode_ptrs - Set uCode address location
6020 * Tell initialization uCode where to find runtime uCode.
6022 * BSM registers initially contain pointers to initialization uCode.
6023 * We need to replace them to load runtime uCode inst and data,
6024 * and to save runtime data when powering down.
6026 static int iwl3945_set_ucode_ptrs(struct iwl3945_priv
*priv
)
6031 unsigned long flags
;
6033 /* bits 31:0 for 3945 */
6034 pinst
= priv
->ucode_code
.p_addr
;
6035 pdata
= priv
->ucode_data_backup
.p_addr
;
6037 spin_lock_irqsave(&priv
->lock
, flags
);
6038 rc
= iwl3945_grab_nic_access(priv
);
6040 spin_unlock_irqrestore(&priv
->lock
, flags
);
6044 /* Tell bootstrap uCode where to find image to load */
6045 iwl3945_write_prph(priv
, BSM_DRAM_INST_PTR_REG
, pinst
);
6046 iwl3945_write_prph(priv
, BSM_DRAM_DATA_PTR_REG
, pdata
);
6047 iwl3945_write_prph(priv
, BSM_DRAM_DATA_BYTECOUNT_REG
,
6048 priv
->ucode_data
.len
);
6050 /* Inst bytecount must be last to set up, bit 31 signals uCode
6051 * that all new ptr/size info is in place */
6052 iwl3945_write_prph(priv
, BSM_DRAM_INST_BYTECOUNT_REG
,
6053 priv
->ucode_code
.len
| BSM_DRAM_INST_LOAD
);
6055 iwl3945_release_nic_access(priv
);
6057 spin_unlock_irqrestore(&priv
->lock
, flags
);
6059 IWL_DEBUG_INFO("Runtime uCode pointers are set.\n");
6065 * iwl3945_init_alive_start - Called after REPLY_ALIVE notification received
6067 * Called after REPLY_ALIVE notification received from "initialize" uCode.
6069 * Tell "initialize" uCode to go ahead and load the runtime uCode.
6071 static void iwl3945_init_alive_start(struct iwl3945_priv
*priv
)
6073 /* Check alive response for "valid" sign from uCode */
6074 if (priv
->card_alive_init
.is_valid
!= UCODE_VALID_OK
) {
6075 /* We had an error bringing up the hardware, so take it
6076 * all the way back down so we can try again */
6077 IWL_DEBUG_INFO("Initialize Alive failed.\n");
6081 /* Bootstrap uCode has loaded initialize uCode ... verify inst image.
6082 * This is a paranoid check, because we would not have gotten the
6083 * "initialize" alive if code weren't properly loaded. */
6084 if (iwl3945_verify_ucode(priv
)) {
6085 /* Runtime instruction load was bad;
6086 * take it all the way back down so we can try again */
6087 IWL_DEBUG_INFO("Bad \"initialize\" uCode load.\n");
6091 /* Send pointers to protocol/runtime uCode image ... init code will
6092 * load and launch runtime uCode, which will send us another "Alive"
6094 IWL_DEBUG_INFO("Initialization Alive received.\n");
6095 if (iwl3945_set_ucode_ptrs(priv
)) {
6096 /* Runtime instruction load won't happen;
6097 * take it all the way back down so we can try again */
6098 IWL_DEBUG_INFO("Couldn't set up uCode pointers.\n");
6104 queue_work(priv
->workqueue
, &priv
->restart
);
6109 * iwl3945_alive_start - called after REPLY_ALIVE notification received
6110 * from protocol/runtime uCode (initialization uCode's
6111 * Alive gets handled by iwl3945_init_alive_start()).
6113 static void iwl3945_alive_start(struct iwl3945_priv
*priv
)
6116 int thermal_spin
= 0;
6119 IWL_DEBUG_INFO("Runtime Alive received.\n");
6121 if (priv
->card_alive
.is_valid
!= UCODE_VALID_OK
) {
6122 /* We had an error bringing up the hardware, so take it
6123 * all the way back down so we can try again */
6124 IWL_DEBUG_INFO("Alive failed.\n");
6128 /* Initialize uCode has loaded Runtime uCode ... verify inst image.
6129 * This is a paranoid check, because we would not have gotten the
6130 * "runtime" alive if code weren't properly loaded. */
6131 if (iwl3945_verify_ucode(priv
)) {
6132 /* Runtime instruction load was bad;
6133 * take it all the way back down so we can try again */
6134 IWL_DEBUG_INFO("Bad runtime uCode load.\n");
6138 iwl3945_clear_stations_table(priv
);
6140 rc
= iwl3945_grab_nic_access(priv
);
6142 IWL_WARNING("Can not read rfkill status from adapter\n");
6146 rfkill
= iwl3945_read_prph(priv
, APMG_RFKILL_REG
);
6147 IWL_DEBUG_INFO("RFKILL status: 0x%x\n", rfkill
);
6148 iwl3945_release_nic_access(priv
);
6151 clear_bit(STATUS_RF_KILL_HW
, &priv
->status
);
6152 /* if rfkill is not on, then wait for thermal
6153 * sensor in adapter to kick in */
6154 while (iwl3945_hw_get_temperature(priv
) == 0) {
6160 IWL_DEBUG_INFO("Thermal calibration took %dus\n",
6163 set_bit(STATUS_RF_KILL_HW
, &priv
->status
);
6165 /* After the ALIVE response, we can send commands to 3945 uCode */
6166 set_bit(STATUS_ALIVE
, &priv
->status
);
6168 /* Clear out the uCode error bit if it is set */
6169 clear_bit(STATUS_FW_ERROR
, &priv
->status
);
6171 if (iwl3945_is_rfkill(priv
))
6174 ieee80211_start_queues(priv
->hw
);
6176 priv
->active_rate
= priv
->rates_mask
;
6177 priv
->active_rate_basic
= priv
->rates_mask
& IWL_BASIC_RATES_MASK
;
6179 iwl3945_send_power_mode(priv
, IWL_POWER_LEVEL(priv
->power_mode
));
6181 if (iwl3945_is_associated(priv
)) {
6182 struct iwl3945_rxon_cmd
*active_rxon
=
6183 (struct iwl3945_rxon_cmd
*)(&priv
->active_rxon
);
6185 memcpy(&priv
->staging_rxon
, &priv
->active_rxon
,
6186 sizeof(priv
->staging_rxon
));
6187 active_rxon
->filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
6189 /* Initialize our rx_config data */
6190 iwl3945_connection_init_rx_config(priv
);
6191 memcpy(priv
->staging_rxon
.node_addr
, priv
->mac_addr
, ETH_ALEN
);
6194 /* Configure Bluetooth device coexistence support */
6195 iwl3945_send_bt_config(priv
);
6197 /* Configure the adapter for unassociated operation */
6198 iwl3945_commit_rxon(priv
);
6200 /* At this point, the NIC is initialized and operational */
6201 priv
->notif_missed_beacons
= 0;
6202 set_bit(STATUS_READY
, &priv
->status
);
6204 iwl3945_reg_txpower_periodic(priv
);
6206 IWL_DEBUG_INFO("ALIVE processing complete.\n");
6207 wake_up_interruptible(&priv
->wait_command_queue
);
6209 if (priv
->error_recovering
)
6210 iwl3945_error_recovery(priv
);
6215 queue_work(priv
->workqueue
, &priv
->restart
);
6218 static void iwl3945_cancel_deferred_work(struct iwl3945_priv
*priv
);
6220 static void __iwl3945_down(struct iwl3945_priv
*priv
)
6222 unsigned long flags
;
6223 int exit_pending
= test_bit(STATUS_EXIT_PENDING
, &priv
->status
);
6224 struct ieee80211_conf
*conf
= NULL
;
6226 IWL_DEBUG_INFO(DRV_NAME
" is going down\n");
6228 conf
= ieee80211_get_hw_conf(priv
->hw
);
6231 set_bit(STATUS_EXIT_PENDING
, &priv
->status
);
6233 iwl3945_clear_stations_table(priv
);
6235 /* Unblock any waiting calls */
6236 wake_up_interruptible_all(&priv
->wait_command_queue
);
6238 /* Wipe out the EXIT_PENDING status bit if we are not actually
6239 * exiting the module */
6241 clear_bit(STATUS_EXIT_PENDING
, &priv
->status
);
6243 /* stop and reset the on-board processor */
6244 iwl3945_write32(priv
, CSR_RESET
, CSR_RESET_REG_FLAG_NEVO_RESET
);
6246 /* tell the device to stop sending interrupts */
6247 iwl3945_disable_interrupts(priv
);
6249 if (priv
->mac80211_registered
)
6250 ieee80211_stop_queues(priv
->hw
);
6252 /* If we have not previously called iwl3945_init() then
6253 * clear all bits but the RF Kill and SUSPEND bits and return */
6254 if (!iwl3945_is_init(priv
)) {
6255 priv
->status
= test_bit(STATUS_RF_KILL_HW
, &priv
->status
) <<
6257 test_bit(STATUS_RF_KILL_SW
, &priv
->status
) <<
6259 test_bit(STATUS_IN_SUSPEND
, &priv
->status
) <<
6264 /* ...otherwise clear out all the status bits but the RF Kill and
6265 * SUSPEND bits and continue taking the NIC down. */
6266 priv
->status
&= test_bit(STATUS_RF_KILL_HW
, &priv
->status
) <<
6268 test_bit(STATUS_RF_KILL_SW
, &priv
->status
) <<
6270 test_bit(STATUS_IN_SUSPEND
, &priv
->status
) <<
6272 test_bit(STATUS_FW_ERROR
, &priv
->status
) <<
6275 spin_lock_irqsave(&priv
->lock
, flags
);
6276 iwl3945_clear_bit(priv
, CSR_GP_CNTRL
, CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ
);
6277 spin_unlock_irqrestore(&priv
->lock
, flags
);
6279 iwl3945_hw_txq_ctx_stop(priv
);
6280 iwl3945_hw_rxq_stop(priv
);
6282 spin_lock_irqsave(&priv
->lock
, flags
);
6283 if (!iwl3945_grab_nic_access(priv
)) {
6284 iwl3945_write_prph(priv
, APMG_CLK_DIS_REG
,
6285 APMG_CLK_VAL_DMA_CLK_RQT
);
6286 iwl3945_release_nic_access(priv
);
6288 spin_unlock_irqrestore(&priv
->lock
, flags
);
6292 iwl3945_hw_nic_stop_master(priv
);
6293 iwl3945_set_bit(priv
, CSR_RESET
, CSR_RESET_REG_FLAG_SW_RESET
);
6294 iwl3945_hw_nic_reset(priv
);
6297 memset(&priv
->card_alive
, 0, sizeof(struct iwl3945_alive_resp
));
6299 if (priv
->ibss_beacon
)
6300 dev_kfree_skb(priv
->ibss_beacon
);
6301 priv
->ibss_beacon
= NULL
;
6303 /* clear out any free frames */
6304 iwl3945_clear_free_frames(priv
);
6307 static void iwl3945_down(struct iwl3945_priv
*priv
)
6309 mutex_lock(&priv
->mutex
);
6310 __iwl3945_down(priv
);
6311 mutex_unlock(&priv
->mutex
);
6313 iwl3945_cancel_deferred_work(priv
);
6316 #define MAX_HW_RESTARTS 5
6318 static int __iwl3945_up(struct iwl3945_priv
*priv
)
6322 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
)) {
6323 IWL_WARNING("Exit pending; will not bring the NIC up\n");
6327 if (test_bit(STATUS_RF_KILL_SW
, &priv
->status
)) {
6328 IWL_WARNING("Radio disabled by SW RF kill (module "
6333 if (!priv
->ucode_data_backup
.v_addr
|| !priv
->ucode_data
.v_addr
) {
6334 IWL_ERROR("ucode not available for device bringup\n");
6338 /* If platform's RF_KILL switch is NOT set to KILL */
6339 if (iwl3945_read32(priv
, CSR_GP_CNTRL
) &
6340 CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW
)
6341 clear_bit(STATUS_RF_KILL_HW
, &priv
->status
);
6343 set_bit(STATUS_RF_KILL_HW
, &priv
->status
);
6344 if (!test_bit(STATUS_IN_SUSPEND
, &priv
->status
)) {
6345 IWL_WARNING("Radio disabled by HW RF Kill switch\n");
6350 iwl3945_write32(priv
, CSR_INT
, 0xFFFFFFFF);
6352 rc
= iwl3945_hw_nic_init(priv
);
6354 IWL_ERROR("Unable to int nic\n");
6358 /* make sure rfkill handshake bits are cleared */
6359 iwl3945_write32(priv
, CSR_UCODE_DRV_GP1_CLR
, CSR_UCODE_SW_BIT_RFKILL
);
6360 iwl3945_write32(priv
, CSR_UCODE_DRV_GP1_CLR
,
6361 CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED
);
6363 /* clear (again), then enable host interrupts */
6364 iwl3945_write32(priv
, CSR_INT
, 0xFFFFFFFF);
6365 iwl3945_enable_interrupts(priv
);
6367 /* really make sure rfkill handshake bits are cleared */
6368 iwl3945_write32(priv
, CSR_UCODE_DRV_GP1_CLR
, CSR_UCODE_SW_BIT_RFKILL
);
6369 iwl3945_write32(priv
, CSR_UCODE_DRV_GP1_CLR
, CSR_UCODE_SW_BIT_RFKILL
);
6371 /* Copy original ucode data image from disk into backup cache.
6372 * This will be used to initialize the on-board processor's
6373 * data SRAM for a clean start when the runtime program first loads. */
6374 memcpy(priv
->ucode_data_backup
.v_addr
, priv
->ucode_data
.v_addr
,
6375 priv
->ucode_data
.len
);
6377 /* We return success when we resume from suspend and rf_kill is on. */
6378 if (test_bit(STATUS_RF_KILL_HW
, &priv
->status
))
6381 for (i
= 0; i
< MAX_HW_RESTARTS
; i
++) {
6383 iwl3945_clear_stations_table(priv
);
6385 /* load bootstrap state machine,
6386 * load bootstrap program into processor's memory,
6387 * prepare to load the "initialize" uCode */
6388 rc
= iwl3945_load_bsm(priv
);
6391 IWL_ERROR("Unable to set up bootstrap uCode: %d\n", rc
);
6395 /* start card; "initialize" will load runtime ucode */
6396 iwl3945_nic_start(priv
);
6398 IWL_DEBUG_INFO(DRV_NAME
" is coming up\n");
6403 set_bit(STATUS_EXIT_PENDING
, &priv
->status
);
6404 __iwl3945_down(priv
);
6406 /* tried to restart and config the device for as long as our
6407 * patience could withstand */
6408 IWL_ERROR("Unable to initialize device after %d attempts.\n", i
);
6413 /*****************************************************************************
6415 * Workqueue callbacks
6417 *****************************************************************************/
6419 static void iwl3945_bg_init_alive_start(struct work_struct
*data
)
6421 struct iwl3945_priv
*priv
=
6422 container_of(data
, struct iwl3945_priv
, init_alive_start
.work
);
6424 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6427 mutex_lock(&priv
->mutex
);
6428 iwl3945_init_alive_start(priv
);
6429 mutex_unlock(&priv
->mutex
);
6432 static void iwl3945_bg_alive_start(struct work_struct
*data
)
6434 struct iwl3945_priv
*priv
=
6435 container_of(data
, struct iwl3945_priv
, alive_start
.work
);
6437 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6440 mutex_lock(&priv
->mutex
);
6441 iwl3945_alive_start(priv
);
6442 mutex_unlock(&priv
->mutex
);
6445 static void iwl3945_bg_rf_kill(struct work_struct
*work
)
6447 struct iwl3945_priv
*priv
= container_of(work
, struct iwl3945_priv
, rf_kill
);
6449 wake_up_interruptible(&priv
->wait_command_queue
);
6451 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6454 mutex_lock(&priv
->mutex
);
6456 if (!iwl3945_is_rfkill(priv
)) {
6457 IWL_DEBUG(IWL_DL_INFO
| IWL_DL_RF_KILL
,
6458 "HW and/or SW RF Kill no longer active, restarting "
6460 if (!test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6461 queue_work(priv
->workqueue
, &priv
->restart
);
6464 if (!test_bit(STATUS_RF_KILL_HW
, &priv
->status
))
6465 IWL_DEBUG_RF_KILL("Can not turn radio back on - "
6466 "disabled by SW switch\n");
6468 IWL_WARNING("Radio Frequency Kill Switch is On:\n"
6469 "Kill switch must be turned off for "
6470 "wireless networking to work.\n");
6472 mutex_unlock(&priv
->mutex
);
6475 #define IWL_SCAN_CHECK_WATCHDOG (7 * HZ)
6477 static void iwl3945_bg_scan_check(struct work_struct
*data
)
6479 struct iwl3945_priv
*priv
=
6480 container_of(data
, struct iwl3945_priv
, scan_check
.work
);
6482 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6485 mutex_lock(&priv
->mutex
);
6486 if (test_bit(STATUS_SCANNING
, &priv
->status
) ||
6487 test_bit(STATUS_SCAN_ABORTING
, &priv
->status
)) {
6488 IWL_DEBUG(IWL_DL_INFO
| IWL_DL_SCAN
,
6489 "Scan completion watchdog resetting adapter (%dms)\n",
6490 jiffies_to_msecs(IWL_SCAN_CHECK_WATCHDOG
));
6492 if (!test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6493 iwl3945_send_scan_abort(priv
);
6495 mutex_unlock(&priv
->mutex
);
6498 static void iwl3945_bg_request_scan(struct work_struct
*data
)
6500 struct iwl3945_priv
*priv
=
6501 container_of(data
, struct iwl3945_priv
, request_scan
);
6502 struct iwl3945_host_cmd cmd
= {
6503 .id
= REPLY_SCAN_CMD
,
6504 .len
= sizeof(struct iwl3945_scan_cmd
),
6505 .meta
.flags
= CMD_SIZE_HUGE
,
6508 struct iwl3945_scan_cmd
*scan
;
6509 struct ieee80211_conf
*conf
= NULL
;
6513 conf
= ieee80211_get_hw_conf(priv
->hw
);
6515 mutex_lock(&priv
->mutex
);
6517 if (!iwl3945_is_ready(priv
)) {
6518 IWL_WARNING("request scan called when driver not ready.\n");
6522 /* Make sure the scan wasn't cancelled before this queued work
6523 * was given the chance to run... */
6524 if (!test_bit(STATUS_SCANNING
, &priv
->status
))
6527 /* This should never be called or scheduled if there is currently
6528 * a scan active in the hardware. */
6529 if (test_bit(STATUS_SCAN_HW
, &priv
->status
)) {
6530 IWL_DEBUG_INFO("Multiple concurrent scan requests in parallel. "
6531 "Ignoring second request.\n");
6536 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
)) {
6537 IWL_DEBUG_SCAN("Aborting scan due to device shutdown\n");
6541 if (test_bit(STATUS_SCAN_ABORTING
, &priv
->status
)) {
6542 IWL_DEBUG_HC("Scan request while abort pending. Queuing.\n");
6546 if (iwl3945_is_rfkill(priv
)) {
6547 IWL_DEBUG_HC("Aborting scan due to RF Kill activation\n");
6551 if (!test_bit(STATUS_READY
, &priv
->status
)) {
6552 IWL_DEBUG_HC("Scan request while uninitialized. Queuing.\n");
6556 if (!priv
->scan_bands
) {
6557 IWL_DEBUG_HC("Aborting scan due to no requested bands\n");
6562 priv
->scan
= kmalloc(sizeof(struct iwl3945_scan_cmd
) +
6563 IWL_MAX_SCAN_SIZE
, GFP_KERNEL
);
6570 memset(scan
, 0, sizeof(struct iwl3945_scan_cmd
) + IWL_MAX_SCAN_SIZE
);
6572 scan
->quiet_plcp_th
= IWL_PLCP_QUIET_THRESH
;
6573 scan
->quiet_time
= IWL_ACTIVE_QUIET_TIME
;
6575 if (iwl3945_is_associated(priv
)) {
6578 u32 suspend_time
= 100;
6579 u32 scan_suspend_time
= 100;
6580 unsigned long flags
;
6582 IWL_DEBUG_INFO("Scanning while associated...\n");
6584 spin_lock_irqsave(&priv
->lock
, flags
);
6585 interval
= priv
->beacon_int
;
6586 spin_unlock_irqrestore(&priv
->lock
, flags
);
6588 scan
->suspend_time
= 0;
6589 scan
->max_out_time
= cpu_to_le32(200 * 1024);
6591 interval
= suspend_time
;
6593 * suspend time format:
6594 * 0-19: beacon interval in usec (time before exec.)
6596 * 24-31: number of beacons (suspend between channels)
6599 extra
= (suspend_time
/ interval
) << 24;
6600 scan_suspend_time
= 0xFF0FFFFF &
6601 (extra
| ((suspend_time
% interval
) * 1024));
6603 scan
->suspend_time
= cpu_to_le32(scan_suspend_time
);
6604 IWL_DEBUG_SCAN("suspend_time 0x%X beacon interval %d\n",
6605 scan_suspend_time
, interval
);
6608 /* We should add the ability for user to lock to PASSIVE ONLY */
6609 if (priv
->one_direct_scan
) {
6611 ("Kicking off one direct scan for '%s'\n",
6612 iwl3945_escape_essid(priv
->direct_ssid
,
6613 priv
->direct_ssid_len
));
6614 scan
->direct_scan
[0].id
= WLAN_EID_SSID
;
6615 scan
->direct_scan
[0].len
= priv
->direct_ssid_len
;
6616 memcpy(scan
->direct_scan
[0].ssid
,
6617 priv
->direct_ssid
, priv
->direct_ssid_len
);
6619 } else if (!iwl3945_is_associated(priv
) && priv
->essid_len
) {
6620 scan
->direct_scan
[0].id
= WLAN_EID_SSID
;
6621 scan
->direct_scan
[0].len
= priv
->essid_len
;
6622 memcpy(scan
->direct_scan
[0].ssid
, priv
->essid
, priv
->essid_len
);
6627 /* We don't build a direct scan probe request; the uCode will do
6628 * that based on the direct_mask added to each channel entry */
6629 scan
->tx_cmd
.len
= cpu_to_le16(
6630 iwl3945_fill_probe_req(priv
, (struct ieee80211_mgmt
*)scan
->data
,
6631 IWL_MAX_SCAN_SIZE
- sizeof(*scan
), 0));
6632 scan
->tx_cmd
.tx_flags
= TX_CMD_FLG_SEQ_CTL_MSK
;
6633 scan
->tx_cmd
.sta_id
= priv
->hw_setting
.bcast_sta_id
;
6634 scan
->tx_cmd
.stop_time
.life_time
= TX_CMD_LIFE_TIME_INFINITE
;
6636 /* flags + rate selection */
6638 switch (priv
->scan_bands
) {
6640 scan
->flags
= RXON_FLG_BAND_24G_MSK
| RXON_FLG_AUTO_DETECT_MSK
;
6641 scan
->tx_cmd
.rate
= IWL_RATE_1M_PLCP
;
6642 scan
->good_CRC_th
= 0;
6643 phymode
= MODE_IEEE80211G
;
6647 scan
->tx_cmd
.rate
= IWL_RATE_6M_PLCP
;
6648 scan
->good_CRC_th
= IWL_GOOD_CRC_TH
;
6649 phymode
= MODE_IEEE80211A
;
6653 IWL_WARNING("Invalid scan band count\n");
6657 /* select Rx antennas */
6658 scan
->flags
|= iwl3945_get_antenna_flags(priv
);
6660 if (priv
->iw_mode
== IEEE80211_IF_TYPE_MNTR
)
6661 scan
->filter_flags
= RXON_FILTER_PROMISC_MSK
;
6665 ("Initiating direct scan for %s.\n",
6666 iwl3945_escape_essid(priv
->essid
, priv
->essid_len
));
6668 IWL_DEBUG_SCAN("Initiating indirect scan.\n");
6670 scan
->channel_count
=
6671 iwl3945_get_channels_for_scan(
6672 priv
, phymode
, 1, /* active */
6674 (void *)&scan
->data
[le16_to_cpu(scan
->tx_cmd
.len
)]);
6676 cmd
.len
+= le16_to_cpu(scan
->tx_cmd
.len
) +
6677 scan
->channel_count
* sizeof(struct iwl3945_scan_channel
);
6679 scan
->len
= cpu_to_le16(cmd
.len
);
6681 set_bit(STATUS_SCAN_HW
, &priv
->status
);
6682 rc
= iwl3945_send_cmd_sync(priv
, &cmd
);
6686 queue_delayed_work(priv
->workqueue
, &priv
->scan_check
,
6687 IWL_SCAN_CHECK_WATCHDOG
);
6689 mutex_unlock(&priv
->mutex
);
6693 /* inform mac80211 scan aborted */
6694 queue_work(priv
->workqueue
, &priv
->scan_completed
);
6695 mutex_unlock(&priv
->mutex
);
6698 static void iwl3945_bg_up(struct work_struct
*data
)
6700 struct iwl3945_priv
*priv
= container_of(data
, struct iwl3945_priv
, up
);
6702 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6705 mutex_lock(&priv
->mutex
);
6707 mutex_unlock(&priv
->mutex
);
6710 static void iwl3945_bg_restart(struct work_struct
*data
)
6712 struct iwl3945_priv
*priv
= container_of(data
, struct iwl3945_priv
, restart
);
6714 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6718 queue_work(priv
->workqueue
, &priv
->up
);
6721 static void iwl3945_bg_rx_replenish(struct work_struct
*data
)
6723 struct iwl3945_priv
*priv
=
6724 container_of(data
, struct iwl3945_priv
, rx_replenish
);
6726 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6729 mutex_lock(&priv
->mutex
);
6730 iwl3945_rx_replenish(priv
);
6731 mutex_unlock(&priv
->mutex
);
6734 #define IWL_DELAY_NEXT_SCAN (HZ*2)
6736 static void iwl3945_bg_post_associate(struct work_struct
*data
)
6738 struct iwl3945_priv
*priv
= container_of(data
, struct iwl3945_priv
,
6739 post_associate
.work
);
6742 struct ieee80211_conf
*conf
= NULL
;
6743 DECLARE_MAC_BUF(mac
);
6745 if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) {
6746 IWL_ERROR("%s Should not be called in AP mode\n", __FUNCTION__
);
6751 IWL_DEBUG_ASSOC("Associated as %d to: %s\n",
6753 print_mac(mac
, priv
->active_rxon
.bssid_addr
));
6755 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6758 mutex_lock(&priv
->mutex
);
6760 if (!priv
->vif
|| !priv
->is_open
) {
6761 mutex_unlock(&priv
->mutex
);
6764 iwl3945_scan_cancel_timeout(priv
, 200);
6766 conf
= ieee80211_get_hw_conf(priv
->hw
);
6768 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
6769 iwl3945_commit_rxon(priv
);
6771 memset(&priv
->rxon_timing
, 0, sizeof(struct iwl3945_rxon_time_cmd
));
6772 iwl3945_setup_rxon_timing(priv
);
6773 rc
= iwl3945_send_cmd_pdu(priv
, REPLY_RXON_TIMING
,
6774 sizeof(priv
->rxon_timing
), &priv
->rxon_timing
);
6776 IWL_WARNING("REPLY_RXON_TIMING failed - "
6777 "Attempting to continue.\n");
6779 priv
->staging_rxon
.filter_flags
|= RXON_FILTER_ASSOC_MSK
;
6781 priv
->staging_rxon
.assoc_id
= cpu_to_le16(priv
->assoc_id
);
6783 IWL_DEBUG_ASSOC("assoc id %d beacon interval %d\n",
6784 priv
->assoc_id
, priv
->beacon_int
);
6786 if (priv
->assoc_capability
& WLAN_CAPABILITY_SHORT_PREAMBLE
)
6787 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_PREAMBLE_MSK
;
6789 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_PREAMBLE_MSK
;
6791 if (priv
->staging_rxon
.flags
& RXON_FLG_BAND_24G_MSK
) {
6792 if (priv
->assoc_capability
& WLAN_CAPABILITY_SHORT_SLOT_TIME
)
6793 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_SLOT_MSK
;
6795 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_SLOT_MSK
;
6797 if (priv
->iw_mode
== IEEE80211_IF_TYPE_IBSS
)
6798 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_SLOT_MSK
;
6802 iwl3945_commit_rxon(priv
);
6804 switch (priv
->iw_mode
) {
6805 case IEEE80211_IF_TYPE_STA
:
6806 iwl3945_rate_scale_init(priv
->hw
, IWL_AP_ID
);
6809 case IEEE80211_IF_TYPE_IBSS
:
6811 /* clear out the station table */
6812 iwl3945_clear_stations_table(priv
);
6814 iwl3945_add_station(priv
, iwl3945_broadcast_addr
, 0, 0);
6815 iwl3945_add_station(priv
, priv
->bssid
, 0, 0);
6816 iwl3945_sync_sta(priv
, IWL_STA_ID
,
6817 (priv
->phymode
== MODE_IEEE80211A
)?
6818 IWL_RATE_6M_PLCP
: IWL_RATE_1M_PLCP
,
6820 iwl3945_rate_scale_init(priv
->hw
, IWL_STA_ID
);
6821 iwl3945_send_beacon_cmd(priv
);
6826 IWL_ERROR("%s Should not be called in %d mode\n",
6827 __FUNCTION__
, priv
->iw_mode
);
6831 iwl3945_sequence_reset(priv
);
6833 #ifdef CONFIG_IWL3945_QOS
6834 iwl3945_activate_qos(priv
, 0);
6835 #endif /* CONFIG_IWL3945_QOS */
6836 /* we have just associated, don't start scan too early */
6837 priv
->next_scan_jiffies
= jiffies
+ IWL_DELAY_NEXT_SCAN
;
6838 mutex_unlock(&priv
->mutex
);
6841 static void iwl3945_bg_abort_scan(struct work_struct
*work
)
6843 struct iwl3945_priv
*priv
= container_of(work
, struct iwl3945_priv
, abort_scan
);
6845 if (!iwl3945_is_ready(priv
))
6848 mutex_lock(&priv
->mutex
);
6850 set_bit(STATUS_SCAN_ABORTING
, &priv
->status
);
6851 iwl3945_send_scan_abort(priv
);
6853 mutex_unlock(&priv
->mutex
);
6856 static int iwl3945_mac_config(struct ieee80211_hw
*hw
, struct ieee80211_conf
*conf
);
6858 static void iwl3945_bg_scan_completed(struct work_struct
*work
)
6860 struct iwl3945_priv
*priv
=
6861 container_of(work
, struct iwl3945_priv
, scan_completed
);
6863 IWL_DEBUG(IWL_DL_INFO
| IWL_DL_SCAN
, "SCAN complete scan\n");
6865 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6868 if (test_bit(STATUS_CONF_PENDING
, &priv
->status
))
6869 iwl3945_mac_config(priv
->hw
, ieee80211_get_hw_conf(priv
->hw
));
6871 ieee80211_scan_completed(priv
->hw
);
6873 /* Since setting the TXPOWER may have been deferred while
6874 * performing the scan, fire one off */
6875 mutex_lock(&priv
->mutex
);
6876 iwl3945_hw_reg_send_txpower(priv
);
6877 mutex_unlock(&priv
->mutex
);
6880 /*****************************************************************************
6882 * mac80211 entry point functions
6884 *****************************************************************************/
6886 #define UCODE_READY_TIMEOUT (2 * HZ)
6888 static int iwl3945_mac_start(struct ieee80211_hw
*hw
)
6890 struct iwl3945_priv
*priv
= hw
->priv
;
6893 IWL_DEBUG_MAC80211("enter\n");
6895 if (pci_enable_device(priv
->pci_dev
)) {
6896 IWL_ERROR("Fail to pci_enable_device\n");
6899 pci_restore_state(priv
->pci_dev
);
6900 pci_enable_msi(priv
->pci_dev
);
6902 ret
= request_irq(priv
->pci_dev
->irq
, iwl3945_isr
, IRQF_SHARED
,
6905 IWL_ERROR("Error allocating IRQ %d\n", priv
->pci_dev
->irq
);
6906 goto out_disable_msi
;
6909 /* we should be verifying the device is ready to be opened */
6910 mutex_lock(&priv
->mutex
);
6912 memset(&priv
->staging_rxon
, 0, sizeof(struct iwl3945_rxon_cmd
));
6913 /* fetch ucode file from disk, alloc and copy to bus-master buffers ...
6914 * ucode filename and max sizes are card-specific. */
6916 if (!priv
->ucode_code
.len
) {
6917 ret
= iwl3945_read_ucode(priv
);
6919 IWL_ERROR("Could not read microcode: %d\n", ret
);
6920 mutex_unlock(&priv
->mutex
);
6921 goto out_release_irq
;
6925 ret
= __iwl3945_up(priv
);
6927 mutex_unlock(&priv
->mutex
);
6930 goto out_release_irq
;
6932 IWL_DEBUG_INFO("Start UP work.\n");
6934 if (test_bit(STATUS_IN_SUSPEND
, &priv
->status
))
6937 /* Wait for START_ALIVE from ucode. Otherwise callbacks from
6938 * mac80211 will not be run successfully. */
6939 ret
= wait_event_interruptible_timeout(priv
->wait_command_queue
,
6940 test_bit(STATUS_READY
, &priv
->status
),
6941 UCODE_READY_TIMEOUT
);
6943 if (!test_bit(STATUS_READY
, &priv
->status
)) {
6944 IWL_ERROR("Wait for START_ALIVE timeout after %dms.\n",
6945 jiffies_to_msecs(UCODE_READY_TIMEOUT
));
6947 goto out_release_irq
;
6952 IWL_DEBUG_MAC80211("leave\n");
6956 free_irq(priv
->pci_dev
->irq
, priv
);
6958 pci_disable_msi(priv
->pci_dev
);
6959 pci_disable_device(priv
->pci_dev
);
6961 IWL_DEBUG_MAC80211("leave - failed\n");
6965 static void iwl3945_mac_stop(struct ieee80211_hw
*hw
)
6967 struct iwl3945_priv
*priv
= hw
->priv
;
6969 IWL_DEBUG_MAC80211("enter\n");
6971 if (!priv
->is_open
) {
6972 IWL_DEBUG_MAC80211("leave - skip\n");
6978 if (iwl3945_is_ready_rf(priv
)) {
6979 /* stop mac, cancel any scan request and clear
6980 * RXON_FILTER_ASSOC_MSK BIT
6982 mutex_lock(&priv
->mutex
);
6983 iwl3945_scan_cancel_timeout(priv
, 100);
6984 cancel_delayed_work(&priv
->post_associate
);
6985 mutex_unlock(&priv
->mutex
);
6990 flush_workqueue(priv
->workqueue
);
6991 free_irq(priv
->pci_dev
->irq
, priv
);
6992 pci_disable_msi(priv
->pci_dev
);
6993 pci_save_state(priv
->pci_dev
);
6994 pci_disable_device(priv
->pci_dev
);
6996 IWL_DEBUG_MAC80211("leave\n");
6999 static int iwl3945_mac_tx(struct ieee80211_hw
*hw
, struct sk_buff
*skb
,
7000 struct ieee80211_tx_control
*ctl
)
7002 struct iwl3945_priv
*priv
= hw
->priv
;
7004 IWL_DEBUG_MAC80211("enter\n");
7006 if (priv
->iw_mode
== IEEE80211_IF_TYPE_MNTR
) {
7007 IWL_DEBUG_MAC80211("leave - monitor\n");
7011 IWL_DEBUG_TX("dev->xmit(%d bytes) at rate 0x%02x\n", skb
->len
,
7014 if (iwl3945_tx_skb(priv
, skb
, ctl
))
7015 dev_kfree_skb_any(skb
);
7017 IWL_DEBUG_MAC80211("leave\n");
7021 static int iwl3945_mac_add_interface(struct ieee80211_hw
*hw
,
7022 struct ieee80211_if_init_conf
*conf
)
7024 struct iwl3945_priv
*priv
= hw
->priv
;
7025 unsigned long flags
;
7026 DECLARE_MAC_BUF(mac
);
7028 IWL_DEBUG_MAC80211("enter: type %d\n", conf
->type
);
7031 IWL_DEBUG_MAC80211("leave - vif != NULL\n");
7035 spin_lock_irqsave(&priv
->lock
, flags
);
7036 priv
->vif
= conf
->vif
;
7038 spin_unlock_irqrestore(&priv
->lock
, flags
);
7040 mutex_lock(&priv
->mutex
);
7042 if (conf
->mac_addr
) {
7043 IWL_DEBUG_MAC80211("Set: %s\n", print_mac(mac
, conf
->mac_addr
));
7044 memcpy(priv
->mac_addr
, conf
->mac_addr
, ETH_ALEN
);
7047 if (iwl3945_is_ready(priv
))
7048 iwl3945_set_mode(priv
, conf
->type
);
7050 mutex_unlock(&priv
->mutex
);
7052 IWL_DEBUG_MAC80211("leave\n");
7057 * iwl3945_mac_config - mac80211 config callback
7059 * We ignore conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME since it seems to
7060 * be set inappropriately and the driver currently sets the hardware up to
7061 * use it whenever needed.
7063 static int iwl3945_mac_config(struct ieee80211_hw
*hw
, struct ieee80211_conf
*conf
)
7065 struct iwl3945_priv
*priv
= hw
->priv
;
7066 const struct iwl3945_channel_info
*ch_info
;
7067 unsigned long flags
;
7070 mutex_lock(&priv
->mutex
);
7071 IWL_DEBUG_MAC80211("enter to channel %d\n", conf
->channel
);
7073 priv
->add_radiotap
= !!(conf
->flags
& IEEE80211_CONF_RADIOTAP
);
7075 if (!iwl3945_is_ready(priv
)) {
7076 IWL_DEBUG_MAC80211("leave - not ready\n");
7081 if (unlikely(!iwl3945_param_disable_hw_scan
&&
7082 test_bit(STATUS_SCANNING
, &priv
->status
))) {
7083 IWL_DEBUG_MAC80211("leave - scanning\n");
7084 set_bit(STATUS_CONF_PENDING
, &priv
->status
);
7085 mutex_unlock(&priv
->mutex
);
7089 spin_lock_irqsave(&priv
->lock
, flags
);
7091 ch_info
= iwl3945_get_channel_info(priv
, conf
->phymode
, conf
->channel
);
7092 if (!is_channel_valid(ch_info
)) {
7093 IWL_DEBUG_SCAN("Channel %d [%d] is INVALID for this SKU.\n",
7094 conf
->channel
, conf
->phymode
);
7095 IWL_DEBUG_MAC80211("leave - invalid channel\n");
7096 spin_unlock_irqrestore(&priv
->lock
, flags
);
7101 iwl3945_set_rxon_channel(priv
, conf
->phymode
, conf
->channel
);
7103 iwl3945_set_flags_for_phymode(priv
, conf
->phymode
);
7105 /* The list of supported rates and rate mask can be different
7106 * for each phymode; since the phymode may have changed, reset
7107 * the rate mask to what mac80211 lists */
7108 iwl3945_set_rate(priv
);
7110 spin_unlock_irqrestore(&priv
->lock
, flags
);
7112 #ifdef IEEE80211_CONF_CHANNEL_SWITCH
7113 if (conf
->flags
& IEEE80211_CONF_CHANNEL_SWITCH
) {
7114 iwl3945_hw_channel_switch(priv
, conf
->channel
);
7119 iwl3945_radio_kill_sw(priv
, !conf
->radio_enabled
);
7121 if (!conf
->radio_enabled
) {
7122 IWL_DEBUG_MAC80211("leave - radio disabled\n");
7126 if (iwl3945_is_rfkill(priv
)) {
7127 IWL_DEBUG_MAC80211("leave - RF kill\n");
7132 iwl3945_set_rate(priv
);
7134 if (memcmp(&priv
->active_rxon
,
7135 &priv
->staging_rxon
, sizeof(priv
->staging_rxon
)))
7136 iwl3945_commit_rxon(priv
);
7138 IWL_DEBUG_INFO("No re-sending same RXON configuration.\n");
7140 IWL_DEBUG_MAC80211("leave\n");
7143 clear_bit(STATUS_CONF_PENDING
, &priv
->status
);
7144 mutex_unlock(&priv
->mutex
);
7148 static void iwl3945_config_ap(struct iwl3945_priv
*priv
)
7152 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
7155 /* The following should be done only at AP bring up */
7156 if ((priv
->active_rxon
.filter_flags
& RXON_FILTER_ASSOC_MSK
) == 0) {
7158 /* RXON - unassoc (to set timing command) */
7159 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
7160 iwl3945_commit_rxon(priv
);
7163 memset(&priv
->rxon_timing
, 0, sizeof(struct iwl3945_rxon_time_cmd
));
7164 iwl3945_setup_rxon_timing(priv
);
7165 rc
= iwl3945_send_cmd_pdu(priv
, REPLY_RXON_TIMING
,
7166 sizeof(priv
->rxon_timing
), &priv
->rxon_timing
);
7168 IWL_WARNING("REPLY_RXON_TIMING failed - "
7169 "Attempting to continue.\n");
7171 /* FIXME: what should be the assoc_id for AP? */
7172 priv
->staging_rxon
.assoc_id
= cpu_to_le16(priv
->assoc_id
);
7173 if (priv
->assoc_capability
& WLAN_CAPABILITY_SHORT_PREAMBLE
)
7174 priv
->staging_rxon
.flags
|=
7175 RXON_FLG_SHORT_PREAMBLE_MSK
;
7177 priv
->staging_rxon
.flags
&=
7178 ~RXON_FLG_SHORT_PREAMBLE_MSK
;
7180 if (priv
->staging_rxon
.flags
& RXON_FLG_BAND_24G_MSK
) {
7181 if (priv
->assoc_capability
&
7182 WLAN_CAPABILITY_SHORT_SLOT_TIME
)
7183 priv
->staging_rxon
.flags
|=
7184 RXON_FLG_SHORT_SLOT_MSK
;
7186 priv
->staging_rxon
.flags
&=
7187 ~RXON_FLG_SHORT_SLOT_MSK
;
7189 if (priv
->iw_mode
== IEEE80211_IF_TYPE_IBSS
)
7190 priv
->staging_rxon
.flags
&=
7191 ~RXON_FLG_SHORT_SLOT_MSK
;
7193 /* restore RXON assoc */
7194 priv
->staging_rxon
.filter_flags
|= RXON_FILTER_ASSOC_MSK
;
7195 iwl3945_commit_rxon(priv
);
7196 iwl3945_add_station(priv
, iwl3945_broadcast_addr
, 0, 0);
7198 iwl3945_send_beacon_cmd(priv
);
7200 /* FIXME - we need to add code here to detect a totally new
7201 * configuration, reset the AP, unassoc, rxon timing, assoc,
7202 * clear sta table, add BCAST sta... */
7205 static int iwl3945_mac_config_interface(struct ieee80211_hw
*hw
,
7206 struct ieee80211_vif
*vif
,
7207 struct ieee80211_if_conf
*conf
)
7209 struct iwl3945_priv
*priv
= hw
->priv
;
7210 DECLARE_MAC_BUF(mac
);
7211 unsigned long flags
;
7217 /* XXX: this MUST use conf->mac_addr */
7219 if ((priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) &&
7220 (!conf
->beacon
|| !conf
->ssid_len
)) {
7222 ("Leaving in AP mode because HostAPD is not ready.\n");
7226 if (!iwl3945_is_alive(priv
))
7229 mutex_lock(&priv
->mutex
);
7232 IWL_DEBUG_MAC80211("bssid: %s\n",
7233 print_mac(mac
, conf
->bssid
));
7236 * very dubious code was here; the probe filtering flag is never set:
7238 if (unlikely(test_bit(STATUS_SCANNING, &priv->status)) &&
7239 !(priv->hw->flags & IEEE80211_HW_NO_PROBE_FILTERING)) {
7241 if (unlikely(test_bit(STATUS_SCANNING
, &priv
->status
))) {
7242 IWL_DEBUG_MAC80211("leave - scanning\n");
7243 mutex_unlock(&priv
->mutex
);
7247 if (priv
->vif
!= vif
) {
7248 IWL_DEBUG_MAC80211("leave - priv->vif != vif\n");
7249 mutex_unlock(&priv
->mutex
);
7253 if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) {
7255 conf
->bssid
= priv
->mac_addr
;
7256 memcpy(priv
->bssid
, priv
->mac_addr
, ETH_ALEN
);
7257 IWL_DEBUG_MAC80211("bssid was set to: %s\n",
7258 print_mac(mac
, conf
->bssid
));
7260 if (priv
->ibss_beacon
)
7261 dev_kfree_skb(priv
->ibss_beacon
);
7263 priv
->ibss_beacon
= conf
->beacon
;
7266 if (iwl3945_is_rfkill(priv
))
7269 if (conf
->bssid
&& !is_zero_ether_addr(conf
->bssid
) &&
7270 !is_multicast_ether_addr(conf
->bssid
)) {
7271 /* If there is currently a HW scan going on in the background
7272 * then we need to cancel it else the RXON below will fail. */
7273 if (iwl3945_scan_cancel_timeout(priv
, 100)) {
7274 IWL_WARNING("Aborted scan still in progress "
7276 IWL_DEBUG_MAC80211("leaving - scan abort failed.\n");
7277 mutex_unlock(&priv
->mutex
);
7280 memcpy(priv
->staging_rxon
.bssid_addr
, conf
->bssid
, ETH_ALEN
);
7282 /* TODO: Audit driver for usage of these members and see
7283 * if mac80211 deprecates them (priv->bssid looks like it
7284 * shouldn't be there, but I haven't scanned the IBSS code
7285 * to verify) - jpk */
7286 memcpy(priv
->bssid
, conf
->bssid
, ETH_ALEN
);
7288 if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
)
7289 iwl3945_config_ap(priv
);
7291 rc
= iwl3945_commit_rxon(priv
);
7292 if ((priv
->iw_mode
== IEEE80211_IF_TYPE_STA
) && rc
)
7293 iwl3945_add_station(priv
,
7294 priv
->active_rxon
.bssid_addr
, 1, 0);
7298 iwl3945_scan_cancel_timeout(priv
, 100);
7299 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
7300 iwl3945_commit_rxon(priv
);
7304 spin_lock_irqsave(&priv
->lock
, flags
);
7305 if (!conf
->ssid_len
)
7306 memset(priv
->essid
, 0, IW_ESSID_MAX_SIZE
);
7308 memcpy(priv
->essid
, conf
->ssid
, conf
->ssid_len
);
7310 priv
->essid_len
= conf
->ssid_len
;
7311 spin_unlock_irqrestore(&priv
->lock
, flags
);
7313 IWL_DEBUG_MAC80211("leave\n");
7314 mutex_unlock(&priv
->mutex
);
7319 static void iwl3945_configure_filter(struct ieee80211_hw
*hw
,
7320 unsigned int changed_flags
,
7321 unsigned int *total_flags
,
7322 int mc_count
, struct dev_addr_list
*mc_list
)
7326 * see also iwl3945_connection_init_rx_config
7331 static void iwl3945_mac_remove_interface(struct ieee80211_hw
*hw
,
7332 struct ieee80211_if_init_conf
*conf
)
7334 struct iwl3945_priv
*priv
= hw
->priv
;
7336 IWL_DEBUG_MAC80211("enter\n");
7338 mutex_lock(&priv
->mutex
);
7340 if (iwl3945_is_ready_rf(priv
)) {
7341 iwl3945_scan_cancel_timeout(priv
, 100);
7342 cancel_delayed_work(&priv
->post_associate
);
7343 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
7344 iwl3945_commit_rxon(priv
);
7346 if (priv
->vif
== conf
->vif
) {
7348 memset(priv
->bssid
, 0, ETH_ALEN
);
7349 memset(priv
->essid
, 0, IW_ESSID_MAX_SIZE
);
7350 priv
->essid_len
= 0;
7352 mutex_unlock(&priv
->mutex
);
7354 IWL_DEBUG_MAC80211("leave\n");
7357 static int iwl3945_mac_hw_scan(struct ieee80211_hw
*hw
, u8
*ssid
, size_t len
)
7360 unsigned long flags
;
7361 struct iwl3945_priv
*priv
= hw
->priv
;
7363 IWL_DEBUG_MAC80211("enter\n");
7365 mutex_lock(&priv
->mutex
);
7366 spin_lock_irqsave(&priv
->lock
, flags
);
7368 if (!iwl3945_is_ready_rf(priv
)) {
7370 IWL_DEBUG_MAC80211("leave - not ready or exit pending\n");
7374 if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) { /* APs don't scan */
7376 IWL_ERROR("ERROR: APs don't scan\n");
7380 /* we don't schedule scan within next_scan_jiffies period */
7381 if (priv
->next_scan_jiffies
&&
7382 time_after(priv
->next_scan_jiffies
, jiffies
)) {
7386 /* if we just finished scan ask for delay */
7387 if (priv
->last_scan_jiffies
&& time_after(priv
->last_scan_jiffies
+
7388 IWL_DELAY_NEXT_SCAN
, jiffies
)) {
7393 IWL_DEBUG_SCAN("direct scan for %s [%d]\n ",
7394 iwl3945_escape_essid(ssid
, len
), (int)len
);
7396 priv
->one_direct_scan
= 1;
7397 priv
->direct_ssid_len
= (u8
)
7398 min((u8
) len
, (u8
) IW_ESSID_MAX_SIZE
);
7399 memcpy(priv
->direct_ssid
, ssid
, priv
->direct_ssid_len
);
7401 priv
->one_direct_scan
= 0;
7403 rc
= iwl3945_scan_initiate(priv
);
7405 IWL_DEBUG_MAC80211("leave\n");
7408 spin_unlock_irqrestore(&priv
->lock
, flags
);
7409 mutex_unlock(&priv
->mutex
);
7414 static int iwl3945_mac_set_key(struct ieee80211_hw
*hw
, enum set_key_cmd cmd
,
7415 const u8
*local_addr
, const u8
*addr
,
7416 struct ieee80211_key_conf
*key
)
7418 struct iwl3945_priv
*priv
= hw
->priv
;
7422 IWL_DEBUG_MAC80211("enter\n");
7424 if (!iwl3945_param_hwcrypto
) {
7425 IWL_DEBUG_MAC80211("leave - hwcrypto disabled\n");
7429 if (is_zero_ether_addr(addr
))
7430 /* only support pairwise keys */
7433 sta_id
= iwl3945_hw_find_station(priv
, addr
);
7434 if (sta_id
== IWL_INVALID_STATION
) {
7435 DECLARE_MAC_BUF(mac
);
7437 IWL_DEBUG_MAC80211("leave - %s not in station map.\n",
7438 print_mac(mac
, addr
));
7442 mutex_lock(&priv
->mutex
);
7444 iwl3945_scan_cancel_timeout(priv
, 100);
7448 rc
= iwl3945_update_sta_key_info(priv
, key
, sta_id
);
7450 iwl3945_set_rxon_hwcrypto(priv
, 1);
7451 iwl3945_commit_rxon(priv
);
7452 key
->hw_key_idx
= sta_id
;
7453 IWL_DEBUG_MAC80211("set_key success, using hwcrypto\n");
7454 key
->flags
|= IEEE80211_KEY_FLAG_GENERATE_IV
;
7458 rc
= iwl3945_clear_sta_key_info(priv
, sta_id
);
7460 iwl3945_set_rxon_hwcrypto(priv
, 0);
7461 iwl3945_commit_rxon(priv
);
7462 IWL_DEBUG_MAC80211("disable hwcrypto key\n");
7469 IWL_DEBUG_MAC80211("leave\n");
7470 mutex_unlock(&priv
->mutex
);
7475 static int iwl3945_mac_conf_tx(struct ieee80211_hw
*hw
, int queue
,
7476 const struct ieee80211_tx_queue_params
*params
)
7478 struct iwl3945_priv
*priv
= hw
->priv
;
7479 #ifdef CONFIG_IWL3945_QOS
7480 unsigned long flags
;
7482 #endif /* CONFIG_IWL3945_QOS */
7484 IWL_DEBUG_MAC80211("enter\n");
7486 if (!iwl3945_is_ready_rf(priv
)) {
7487 IWL_DEBUG_MAC80211("leave - RF not ready\n");
7491 if (queue
>= AC_NUM
) {
7492 IWL_DEBUG_MAC80211("leave - queue >= AC_NUM %d\n", queue
);
7496 #ifdef CONFIG_IWL3945_QOS
7497 if (!priv
->qos_data
.qos_enable
) {
7498 priv
->qos_data
.qos_active
= 0;
7499 IWL_DEBUG_MAC80211("leave - qos not enabled\n");
7502 q
= AC_NUM
- 1 - queue
;
7504 spin_lock_irqsave(&priv
->lock
, flags
);
7506 priv
->qos_data
.def_qos_parm
.ac
[q
].cw_min
= cpu_to_le16(params
->cw_min
);
7507 priv
->qos_data
.def_qos_parm
.ac
[q
].cw_max
= cpu_to_le16(params
->cw_max
);
7508 priv
->qos_data
.def_qos_parm
.ac
[q
].aifsn
= params
->aifs
;
7509 priv
->qos_data
.def_qos_parm
.ac
[q
].edca_txop
=
7510 cpu_to_le16((params
->burst_time
* 100));
7512 priv
->qos_data
.def_qos_parm
.ac
[q
].reserved1
= 0;
7513 priv
->qos_data
.qos_active
= 1;
7515 spin_unlock_irqrestore(&priv
->lock
, flags
);
7517 mutex_lock(&priv
->mutex
);
7518 if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
)
7519 iwl3945_activate_qos(priv
, 1);
7520 else if (priv
->assoc_id
&& iwl3945_is_associated(priv
))
7521 iwl3945_activate_qos(priv
, 0);
7523 mutex_unlock(&priv
->mutex
);
7525 #endif /*CONFIG_IWL3945_QOS */
7527 IWL_DEBUG_MAC80211("leave\n");
7531 static int iwl3945_mac_get_tx_stats(struct ieee80211_hw
*hw
,
7532 struct ieee80211_tx_queue_stats
*stats
)
7534 struct iwl3945_priv
*priv
= hw
->priv
;
7536 struct iwl3945_tx_queue
*txq
;
7537 struct iwl3945_queue
*q
;
7538 unsigned long flags
;
7540 IWL_DEBUG_MAC80211("enter\n");
7542 if (!iwl3945_is_ready_rf(priv
)) {
7543 IWL_DEBUG_MAC80211("leave - RF not ready\n");
7547 spin_lock_irqsave(&priv
->lock
, flags
);
7549 for (i
= 0; i
< AC_NUM
; i
++) {
7550 txq
= &priv
->txq
[i
];
7552 avail
= iwl3945_queue_space(q
);
7554 stats
->data
[i
].len
= q
->n_window
- avail
;
7555 stats
->data
[i
].limit
= q
->n_window
- q
->high_mark
;
7556 stats
->data
[i
].count
= q
->n_window
;
7559 spin_unlock_irqrestore(&priv
->lock
, flags
);
7561 IWL_DEBUG_MAC80211("leave\n");
7566 static int iwl3945_mac_get_stats(struct ieee80211_hw
*hw
,
7567 struct ieee80211_low_level_stats
*stats
)
7569 IWL_DEBUG_MAC80211("enter\n");
7570 IWL_DEBUG_MAC80211("leave\n");
7575 static u64
iwl3945_mac_get_tsf(struct ieee80211_hw
*hw
)
7577 IWL_DEBUG_MAC80211("enter\n");
7578 IWL_DEBUG_MAC80211("leave\n");
7583 static void iwl3945_mac_reset_tsf(struct ieee80211_hw
*hw
)
7585 struct iwl3945_priv
*priv
= hw
->priv
;
7586 unsigned long flags
;
7588 mutex_lock(&priv
->mutex
);
7589 IWL_DEBUG_MAC80211("enter\n");
7591 #ifdef CONFIG_IWL3945_QOS
7592 iwl3945_reset_qos(priv
);
7594 cancel_delayed_work(&priv
->post_associate
);
7596 spin_lock_irqsave(&priv
->lock
, flags
);
7598 priv
->assoc_capability
= 0;
7599 priv
->call_post_assoc_from_beacon
= 0;
7601 /* new association get rid of ibss beacon skb */
7602 if (priv
->ibss_beacon
)
7603 dev_kfree_skb(priv
->ibss_beacon
);
7605 priv
->ibss_beacon
= NULL
;
7607 priv
->beacon_int
= priv
->hw
->conf
.beacon_int
;
7608 priv
->timestamp1
= 0;
7609 priv
->timestamp0
= 0;
7610 if ((priv
->iw_mode
== IEEE80211_IF_TYPE_STA
))
7611 priv
->beacon_int
= 0;
7613 spin_unlock_irqrestore(&priv
->lock
, flags
);
7615 if (!iwl3945_is_ready_rf(priv
)) {
7616 IWL_DEBUG_MAC80211("leave - not ready\n");
7617 mutex_unlock(&priv
->mutex
);
7621 /* we are restarting association process
7622 * clear RXON_FILTER_ASSOC_MSK bit
7624 if (priv
->iw_mode
!= IEEE80211_IF_TYPE_AP
) {
7625 iwl3945_scan_cancel_timeout(priv
, 100);
7626 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
7627 iwl3945_commit_rxon(priv
);
7630 /* Per mac80211.h: This is only used in IBSS mode... */
7631 if (priv
->iw_mode
!= IEEE80211_IF_TYPE_IBSS
) {
7633 IWL_DEBUG_MAC80211("leave - not in IBSS\n");
7634 mutex_unlock(&priv
->mutex
);
7638 priv
->only_active_channel
= 0;
7640 iwl3945_set_rate(priv
);
7642 mutex_unlock(&priv
->mutex
);
7644 IWL_DEBUG_MAC80211("leave\n");
7648 static int iwl3945_mac_beacon_update(struct ieee80211_hw
*hw
, struct sk_buff
*skb
,
7649 struct ieee80211_tx_control
*control
)
7651 struct iwl3945_priv
*priv
= hw
->priv
;
7652 unsigned long flags
;
7654 mutex_lock(&priv
->mutex
);
7655 IWL_DEBUG_MAC80211("enter\n");
7657 if (!iwl3945_is_ready_rf(priv
)) {
7658 IWL_DEBUG_MAC80211("leave - RF not ready\n");
7659 mutex_unlock(&priv
->mutex
);
7663 if (priv
->iw_mode
!= IEEE80211_IF_TYPE_IBSS
) {
7664 IWL_DEBUG_MAC80211("leave - not IBSS\n");
7665 mutex_unlock(&priv
->mutex
);
7669 spin_lock_irqsave(&priv
->lock
, flags
);
7671 if (priv
->ibss_beacon
)
7672 dev_kfree_skb(priv
->ibss_beacon
);
7674 priv
->ibss_beacon
= skb
;
7678 IWL_DEBUG_MAC80211("leave\n");
7679 spin_unlock_irqrestore(&priv
->lock
, flags
);
7681 #ifdef CONFIG_IWL3945_QOS
7682 iwl3945_reset_qos(priv
);
7685 queue_work(priv
->workqueue
, &priv
->post_associate
.work
);
7687 mutex_unlock(&priv
->mutex
);
7692 /*****************************************************************************
7696 *****************************************************************************/
7698 #ifdef CONFIG_IWL3945_DEBUG
7701 * The following adds a new attribute to the sysfs representation
7702 * of this device driver (i.e. a new file in /sys/bus/pci/drivers/iwl/)
7703 * used for controlling the debug level.
7705 * See the level definitions in iwl for details.
7708 static ssize_t
show_debug_level(struct device_driver
*d
, char *buf
)
7710 return sprintf(buf
, "0x%08X\n", iwl3945_debug_level
);
7712 static ssize_t
store_debug_level(struct device_driver
*d
,
7713 const char *buf
, size_t count
)
7715 char *p
= (char *)buf
;
7718 val
= simple_strtoul(p
, &p
, 0);
7720 printk(KERN_INFO DRV_NAME
7721 ": %s is not in hex or decimal form.\n", buf
);
7723 iwl3945_debug_level
= val
;
7725 return strnlen(buf
, count
);
7728 static DRIVER_ATTR(debug_level
, S_IWUSR
| S_IRUGO
,
7729 show_debug_level
, store_debug_level
);
7731 #endif /* CONFIG_IWL3945_DEBUG */
7733 static ssize_t
show_rf_kill(struct device
*d
,
7734 struct device_attribute
*attr
, char *buf
)
7737 * 0 - RF kill not enabled
7738 * 1 - SW based RF kill active (sysfs)
7739 * 2 - HW based RF kill active
7740 * 3 - Both HW and SW based RF kill active
7742 struct iwl3945_priv
*priv
= (struct iwl3945_priv
*)d
->driver_data
;
7743 int val
= (test_bit(STATUS_RF_KILL_SW
, &priv
->status
) ? 0x1 : 0x0) |
7744 (test_bit(STATUS_RF_KILL_HW
, &priv
->status
) ? 0x2 : 0x0);
7746 return sprintf(buf
, "%i\n", val
);
7749 static ssize_t
store_rf_kill(struct device
*d
,
7750 struct device_attribute
*attr
,
7751 const char *buf
, size_t count
)
7753 struct iwl3945_priv
*priv
= (struct iwl3945_priv
*)d
->driver_data
;
7755 mutex_lock(&priv
->mutex
);
7756 iwl3945_radio_kill_sw(priv
, buf
[0] == '1');
7757 mutex_unlock(&priv
->mutex
);
7762 static DEVICE_ATTR(rf_kill
, S_IWUSR
| S_IRUGO
, show_rf_kill
, store_rf_kill
);
7764 static ssize_t
show_temperature(struct device
*d
,
7765 struct device_attribute
*attr
, char *buf
)
7767 struct iwl3945_priv
*priv
= (struct iwl3945_priv
*)d
->driver_data
;
7769 if (!iwl3945_is_alive(priv
))
7772 return sprintf(buf
, "%d\n", iwl3945_hw_get_temperature(priv
));
7775 static DEVICE_ATTR(temperature
, S_IRUGO
, show_temperature
, NULL
);
7777 static ssize_t
show_rs_window(struct device
*d
,
7778 struct device_attribute
*attr
,
7781 struct iwl3945_priv
*priv
= d
->driver_data
;
7782 return iwl3945_fill_rs_info(priv
->hw
, buf
, IWL_AP_ID
);
7784 static DEVICE_ATTR(rs_window
, S_IRUGO
, show_rs_window
, NULL
);
7786 static ssize_t
show_tx_power(struct device
*d
,
7787 struct device_attribute
*attr
, char *buf
)
7789 struct iwl3945_priv
*priv
= (struct iwl3945_priv
*)d
->driver_data
;
7790 return sprintf(buf
, "%d\n", priv
->user_txpower_limit
);
7793 static ssize_t
store_tx_power(struct device
*d
,
7794 struct device_attribute
*attr
,
7795 const char *buf
, size_t count
)
7797 struct iwl3945_priv
*priv
= (struct iwl3945_priv
*)d
->driver_data
;
7798 char *p
= (char *)buf
;
7801 val
= simple_strtoul(p
, &p
, 10);
7803 printk(KERN_INFO DRV_NAME
7804 ": %s is not in decimal form.\n", buf
);
7806 iwl3945_hw_reg_set_txpower(priv
, val
);
7811 static DEVICE_ATTR(tx_power
, S_IWUSR
| S_IRUGO
, show_tx_power
, store_tx_power
);
7813 static ssize_t
show_flags(struct device
*d
,
7814 struct device_attribute
*attr
, char *buf
)
7816 struct iwl3945_priv
*priv
= (struct iwl3945_priv
*)d
->driver_data
;
7818 return sprintf(buf
, "0x%04X\n", priv
->active_rxon
.flags
);
7821 static ssize_t
store_flags(struct device
*d
,
7822 struct device_attribute
*attr
,
7823 const char *buf
, size_t count
)
7825 struct iwl3945_priv
*priv
= (struct iwl3945_priv
*)d
->driver_data
;
7826 u32 flags
= simple_strtoul(buf
, NULL
, 0);
7828 mutex_lock(&priv
->mutex
);
7829 if (le32_to_cpu(priv
->staging_rxon
.flags
) != flags
) {
7830 /* Cancel any currently running scans... */
7831 if (iwl3945_scan_cancel_timeout(priv
, 100))
7832 IWL_WARNING("Could not cancel scan.\n");
7834 IWL_DEBUG_INFO("Committing rxon.flags = 0x%04X\n",
7836 priv
->staging_rxon
.flags
= cpu_to_le32(flags
);
7837 iwl3945_commit_rxon(priv
);
7840 mutex_unlock(&priv
->mutex
);
7845 static DEVICE_ATTR(flags
, S_IWUSR
| S_IRUGO
, show_flags
, store_flags
);
7847 static ssize_t
show_filter_flags(struct device
*d
,
7848 struct device_attribute
*attr
, char *buf
)
7850 struct iwl3945_priv
*priv
= (struct iwl3945_priv
*)d
->driver_data
;
7852 return sprintf(buf
, "0x%04X\n",
7853 le32_to_cpu(priv
->active_rxon
.filter_flags
));
7856 static ssize_t
store_filter_flags(struct device
*d
,
7857 struct device_attribute
*attr
,
7858 const char *buf
, size_t count
)
7860 struct iwl3945_priv
*priv
= (struct iwl3945_priv
*)d
->driver_data
;
7861 u32 filter_flags
= simple_strtoul(buf
, NULL
, 0);
7863 mutex_lock(&priv
->mutex
);
7864 if (le32_to_cpu(priv
->staging_rxon
.filter_flags
) != filter_flags
) {
7865 /* Cancel any currently running scans... */
7866 if (iwl3945_scan_cancel_timeout(priv
, 100))
7867 IWL_WARNING("Could not cancel scan.\n");
7869 IWL_DEBUG_INFO("Committing rxon.filter_flags = "
7870 "0x%04X\n", filter_flags
);
7871 priv
->staging_rxon
.filter_flags
=
7872 cpu_to_le32(filter_flags
);
7873 iwl3945_commit_rxon(priv
);
7876 mutex_unlock(&priv
->mutex
);
7881 static DEVICE_ATTR(filter_flags
, S_IWUSR
| S_IRUGO
, show_filter_flags
,
7882 store_filter_flags
);
7884 static ssize_t
show_tune(struct device
*d
,
7885 struct device_attribute
*attr
, char *buf
)
7887 struct iwl3945_priv
*priv
= (struct iwl3945_priv
*)d
->driver_data
;
7889 return sprintf(buf
, "0x%04X\n",
7890 (priv
->phymode
<< 8) |
7891 le16_to_cpu(priv
->active_rxon
.channel
));
7894 static void iwl3945_set_flags_for_phymode(struct iwl3945_priv
*priv
, u8 phymode
);
7896 static ssize_t
store_tune(struct device
*d
,
7897 struct device_attribute
*attr
,
7898 const char *buf
, size_t count
)
7900 struct iwl3945_priv
*priv
= (struct iwl3945_priv
*)d
->driver_data
;
7901 char *p
= (char *)buf
;
7902 u16 tune
= simple_strtoul(p
, &p
, 0);
7903 u8 phymode
= (tune
>> 8) & 0xff;
7904 u16 channel
= tune
& 0xff;
7906 IWL_DEBUG_INFO("Tune request to:%d channel:%d\n", phymode
, channel
);
7908 mutex_lock(&priv
->mutex
);
7909 if ((le16_to_cpu(priv
->staging_rxon
.channel
) != channel
) ||
7910 (priv
->phymode
!= phymode
)) {
7911 const struct iwl3945_channel_info
*ch_info
;
7913 ch_info
= iwl3945_get_channel_info(priv
, phymode
, channel
);
7915 IWL_WARNING("Requested invalid phymode/channel "
7916 "combination: %d %d\n", phymode
, channel
);
7917 mutex_unlock(&priv
->mutex
);
7921 /* Cancel any currently running scans... */
7922 if (iwl3945_scan_cancel_timeout(priv
, 100))
7923 IWL_WARNING("Could not cancel scan.\n");
7925 IWL_DEBUG_INFO("Committing phymode and "
7926 "rxon.channel = %d %d\n",
7929 iwl3945_set_rxon_channel(priv
, phymode
, channel
);
7930 iwl3945_set_flags_for_phymode(priv
, phymode
);
7932 iwl3945_set_rate(priv
);
7933 iwl3945_commit_rxon(priv
);
7936 mutex_unlock(&priv
->mutex
);
7941 static DEVICE_ATTR(tune
, S_IWUSR
| S_IRUGO
, show_tune
, store_tune
);
7943 #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT
7945 static ssize_t
show_measurement(struct device
*d
,
7946 struct device_attribute
*attr
, char *buf
)
7948 struct iwl3945_priv
*priv
= dev_get_drvdata(d
);
7949 struct iwl3945_spectrum_notification measure_report
;
7950 u32 size
= sizeof(measure_report
), len
= 0, ofs
= 0;
7951 u8
*data
= (u8
*) & measure_report
;
7952 unsigned long flags
;
7954 spin_lock_irqsave(&priv
->lock
, flags
);
7955 if (!(priv
->measurement_status
& MEASUREMENT_READY
)) {
7956 spin_unlock_irqrestore(&priv
->lock
, flags
);
7959 memcpy(&measure_report
, &priv
->measure_report
, size
);
7960 priv
->measurement_status
= 0;
7961 spin_unlock_irqrestore(&priv
->lock
, flags
);
7963 while (size
&& (PAGE_SIZE
- len
)) {
7964 hex_dump_to_buffer(data
+ ofs
, size
, 16, 1, buf
+ len
,
7965 PAGE_SIZE
- len
, 1);
7967 if (PAGE_SIZE
- len
)
7971 size
-= min(size
, 16U);
7977 static ssize_t
store_measurement(struct device
*d
,
7978 struct device_attribute
*attr
,
7979 const char *buf
, size_t count
)
7981 struct iwl3945_priv
*priv
= dev_get_drvdata(d
);
7982 struct ieee80211_measurement_params params
= {
7983 .channel
= le16_to_cpu(priv
->active_rxon
.channel
),
7984 .start_time
= cpu_to_le64(priv
->last_tsf
),
7985 .duration
= cpu_to_le16(1),
7987 u8 type
= IWL_MEASURE_BASIC
;
7993 strncpy(buffer
, buf
, min(sizeof(buffer
), count
));
7994 channel
= simple_strtoul(p
, NULL
, 0);
7996 params
.channel
= channel
;
7999 while (*p
&& *p
!= ' ')
8002 type
= simple_strtoul(p
+ 1, NULL
, 0);
8005 IWL_DEBUG_INFO("Invoking measurement of type %d on "
8006 "channel %d (for '%s')\n", type
, params
.channel
, buf
);
8007 iwl3945_get_measurement(priv
, ¶ms
, type
);
8012 static DEVICE_ATTR(measurement
, S_IRUSR
| S_IWUSR
,
8013 show_measurement
, store_measurement
);
8014 #endif /* CONFIG_IWL3945_SPECTRUM_MEASUREMENT */
8016 static ssize_t
show_rate(struct device
*d
,
8017 struct device_attribute
*attr
, char *buf
)
8019 struct iwl3945_priv
*priv
= dev_get_drvdata(d
);
8020 unsigned long flags
;
8023 spin_lock_irqsave(&priv
->sta_lock
, flags
);
8024 if (priv
->iw_mode
== IEEE80211_IF_TYPE_STA
)
8025 i
= priv
->stations
[IWL_AP_ID
].current_rate
.s
.rate
;
8027 i
= priv
->stations
[IWL_STA_ID
].current_rate
.s
.rate
;
8028 spin_unlock_irqrestore(&priv
->sta_lock
, flags
);
8030 i
= iwl3945_rate_index_from_plcp(i
);
8032 return sprintf(buf
, "0\n");
8034 return sprintf(buf
, "%d%s\n",
8035 (iwl3945_rates
[i
].ieee
>> 1),
8036 (iwl3945_rates
[i
].ieee
& 0x1) ? ".5" : "");
8039 static DEVICE_ATTR(rate
, S_IRUSR
, show_rate
, NULL
);
8041 static ssize_t
store_retry_rate(struct device
*d
,
8042 struct device_attribute
*attr
,
8043 const char *buf
, size_t count
)
8045 struct iwl3945_priv
*priv
= dev_get_drvdata(d
);
8047 priv
->retry_rate
= simple_strtoul(buf
, NULL
, 0);
8048 if (priv
->retry_rate
<= 0)
8049 priv
->retry_rate
= 1;
8054 static ssize_t
show_retry_rate(struct device
*d
,
8055 struct device_attribute
*attr
, char *buf
)
8057 struct iwl3945_priv
*priv
= dev_get_drvdata(d
);
8058 return sprintf(buf
, "%d", priv
->retry_rate
);
8061 static DEVICE_ATTR(retry_rate
, S_IWUSR
| S_IRUSR
, show_retry_rate
,
8064 static ssize_t
store_power_level(struct device
*d
,
8065 struct device_attribute
*attr
,
8066 const char *buf
, size_t count
)
8068 struct iwl3945_priv
*priv
= dev_get_drvdata(d
);
8072 mode
= simple_strtoul(buf
, NULL
, 0);
8073 mutex_lock(&priv
->mutex
);
8075 if (!iwl3945_is_ready(priv
)) {
8080 if ((mode
< 1) || (mode
> IWL_POWER_LIMIT
) || (mode
== IWL_POWER_AC
))
8081 mode
= IWL_POWER_AC
;
8083 mode
|= IWL_POWER_ENABLED
;
8085 if (mode
!= priv
->power_mode
) {
8086 rc
= iwl3945_send_power_mode(priv
, IWL_POWER_LEVEL(mode
));
8088 IWL_DEBUG_MAC80211("failed setting power mode.\n");
8091 priv
->power_mode
= mode
;
8097 mutex_unlock(&priv
->mutex
);
8101 #define MAX_WX_STRING 80
8103 /* Values are in microsecond */
8104 static const s32 timeout_duration
[] = {
8111 static const s32 period_duration
[] = {
8119 static ssize_t
show_power_level(struct device
*d
,
8120 struct device_attribute
*attr
, char *buf
)
8122 struct iwl3945_priv
*priv
= dev_get_drvdata(d
);
8123 int level
= IWL_POWER_LEVEL(priv
->power_mode
);
8126 p
+= sprintf(p
, "%d ", level
);
8128 case IWL_POWER_MODE_CAM
:
8130 p
+= sprintf(p
, "(AC)");
8132 case IWL_POWER_BATTERY
:
8133 p
+= sprintf(p
, "(BATTERY)");
8137 "(Timeout %dms, Period %dms)",
8138 timeout_duration
[level
- 1] / 1000,
8139 period_duration
[level
- 1] / 1000);
8142 if (!(priv
->power_mode
& IWL_POWER_ENABLED
))
8143 p
+= sprintf(p
, " OFF\n");
8145 p
+= sprintf(p
, " \n");
8147 return (p
- buf
+ 1);
8151 static DEVICE_ATTR(power_level
, S_IWUSR
| S_IRUSR
, show_power_level
,
8154 static ssize_t
show_channels(struct device
*d
,
8155 struct device_attribute
*attr
, char *buf
)
8157 struct iwl3945_priv
*priv
= dev_get_drvdata(d
);
8159 struct ieee80211_channel
*channels
= NULL
;
8160 const struct ieee80211_hw_mode
*hw_mode
= NULL
;
8163 if (!iwl3945_is_ready(priv
))
8166 hw_mode
= iwl3945_get_hw_mode(priv
, MODE_IEEE80211G
);
8168 hw_mode
= iwl3945_get_hw_mode(priv
, MODE_IEEE80211B
);
8170 channels
= hw_mode
->channels
;
8171 count
= hw_mode
->num_channels
;
8176 "Displaying %d channels in 2.4GHz band "
8177 "(802.11bg):\n", count
);
8179 for (i
= 0; i
< count
; i
++)
8180 len
+= sprintf(&buf
[len
], "%d: %ddBm: BSS%s%s, %s.\n",
8182 channels
[i
].power_level
,
8184 flag
& IEEE80211_CHAN_W_RADAR_DETECT
?
8185 " (IEEE 802.11h required)" : "",
8186 (!(channels
[i
].flag
& IEEE80211_CHAN_W_IBSS
)
8189 IEEE80211_CHAN_W_RADAR_DETECT
)) ? "" :
8192 flag
& IEEE80211_CHAN_W_ACTIVE_SCAN
?
8193 "active/passive" : "passive only");
8195 hw_mode
= iwl3945_get_hw_mode(priv
, MODE_IEEE80211A
);
8197 channels
= hw_mode
->channels
;
8198 count
= hw_mode
->num_channels
;
8204 len
+= sprintf(&buf
[len
], "Displaying %d channels in 5.2GHz band "
8205 "(802.11a):\n", count
);
8207 for (i
= 0; i
< count
; i
++)
8208 len
+= sprintf(&buf
[len
], "%d: %ddBm: BSS%s%s, %s.\n",
8210 channels
[i
].power_level
,
8212 flag
& IEEE80211_CHAN_W_RADAR_DETECT
?
8213 " (IEEE 802.11h required)" : "",
8214 (!(channels
[i
].flag
& IEEE80211_CHAN_W_IBSS
)
8217 IEEE80211_CHAN_W_RADAR_DETECT
)) ? "" :
8220 flag
& IEEE80211_CHAN_W_ACTIVE_SCAN
?
8221 "active/passive" : "passive only");
8226 static DEVICE_ATTR(channels
, S_IRUSR
, show_channels
, NULL
);
8228 static ssize_t
show_statistics(struct device
*d
,
8229 struct device_attribute
*attr
, char *buf
)
8231 struct iwl3945_priv
*priv
= dev_get_drvdata(d
);
8232 u32 size
= sizeof(struct iwl3945_notif_statistics
);
8233 u32 len
= 0, ofs
= 0;
8234 u8
*data
= (u8
*) & priv
->statistics
;
8237 if (!iwl3945_is_alive(priv
))
8240 mutex_lock(&priv
->mutex
);
8241 rc
= iwl3945_send_statistics_request(priv
);
8242 mutex_unlock(&priv
->mutex
);
8246 "Error sending statistics request: 0x%08X\n", rc
);
8250 while (size
&& (PAGE_SIZE
- len
)) {
8251 hex_dump_to_buffer(data
+ ofs
, size
, 16, 1, buf
+ len
,
8252 PAGE_SIZE
- len
, 1);
8254 if (PAGE_SIZE
- len
)
8258 size
-= min(size
, 16U);
8264 static DEVICE_ATTR(statistics
, S_IRUGO
, show_statistics
, NULL
);
8266 static ssize_t
show_antenna(struct device
*d
,
8267 struct device_attribute
*attr
, char *buf
)
8269 struct iwl3945_priv
*priv
= dev_get_drvdata(d
);
8271 if (!iwl3945_is_alive(priv
))
8274 return sprintf(buf
, "%d\n", priv
->antenna
);
8277 static ssize_t
store_antenna(struct device
*d
,
8278 struct device_attribute
*attr
,
8279 const char *buf
, size_t count
)
8282 struct iwl3945_priv
*priv
= dev_get_drvdata(d
);
8287 if (sscanf(buf
, "%1i", &ant
) != 1) {
8288 IWL_DEBUG_INFO("not in hex or decimal form.\n");
8292 if ((ant
>= 0) && (ant
<= 2)) {
8293 IWL_DEBUG_INFO("Setting antenna select to %d.\n", ant
);
8294 priv
->antenna
= (enum iwl3945_antenna
)ant
;
8296 IWL_DEBUG_INFO("Bad antenna select value %d.\n", ant
);
8302 static DEVICE_ATTR(antenna
, S_IWUSR
| S_IRUGO
, show_antenna
, store_antenna
);
8304 static ssize_t
show_status(struct device
*d
,
8305 struct device_attribute
*attr
, char *buf
)
8307 struct iwl3945_priv
*priv
= (struct iwl3945_priv
*)d
->driver_data
;
8308 if (!iwl3945_is_alive(priv
))
8310 return sprintf(buf
, "0x%08x\n", (int)priv
->status
);
8313 static DEVICE_ATTR(status
, S_IRUGO
, show_status
, NULL
);
8315 static ssize_t
dump_error_log(struct device
*d
,
8316 struct device_attribute
*attr
,
8317 const char *buf
, size_t count
)
8319 char *p
= (char *)buf
;
8322 iwl3945_dump_nic_error_log((struct iwl3945_priv
*)d
->driver_data
);
8324 return strnlen(buf
, count
);
8327 static DEVICE_ATTR(dump_errors
, S_IWUSR
, NULL
, dump_error_log
);
8329 static ssize_t
dump_event_log(struct device
*d
,
8330 struct device_attribute
*attr
,
8331 const char *buf
, size_t count
)
8333 char *p
= (char *)buf
;
8336 iwl3945_dump_nic_event_log((struct iwl3945_priv
*)d
->driver_data
);
8338 return strnlen(buf
, count
);
8341 static DEVICE_ATTR(dump_events
, S_IWUSR
, NULL
, dump_event_log
);
8343 /*****************************************************************************
8345 * driver setup and teardown
8347 *****************************************************************************/
8349 static void iwl3945_setup_deferred_work(struct iwl3945_priv
*priv
)
8351 priv
->workqueue
= create_workqueue(DRV_NAME
);
8353 init_waitqueue_head(&priv
->wait_command_queue
);
8355 INIT_WORK(&priv
->up
, iwl3945_bg_up
);
8356 INIT_WORK(&priv
->restart
, iwl3945_bg_restart
);
8357 INIT_WORK(&priv
->rx_replenish
, iwl3945_bg_rx_replenish
);
8358 INIT_WORK(&priv
->scan_completed
, iwl3945_bg_scan_completed
);
8359 INIT_WORK(&priv
->request_scan
, iwl3945_bg_request_scan
);
8360 INIT_WORK(&priv
->abort_scan
, iwl3945_bg_abort_scan
);
8361 INIT_WORK(&priv
->rf_kill
, iwl3945_bg_rf_kill
);
8362 INIT_WORK(&priv
->beacon_update
, iwl3945_bg_beacon_update
);
8363 INIT_DELAYED_WORK(&priv
->post_associate
, iwl3945_bg_post_associate
);
8364 INIT_DELAYED_WORK(&priv
->init_alive_start
, iwl3945_bg_init_alive_start
);
8365 INIT_DELAYED_WORK(&priv
->alive_start
, iwl3945_bg_alive_start
);
8366 INIT_DELAYED_WORK(&priv
->scan_check
, iwl3945_bg_scan_check
);
8368 iwl3945_hw_setup_deferred_work(priv
);
8370 tasklet_init(&priv
->irq_tasklet
, (void (*)(unsigned long))
8371 iwl3945_irq_tasklet
, (unsigned long)priv
);
8374 static void iwl3945_cancel_deferred_work(struct iwl3945_priv
*priv
)
8376 iwl3945_hw_cancel_deferred_work(priv
);
8378 cancel_delayed_work_sync(&priv
->init_alive_start
);
8379 cancel_delayed_work(&priv
->scan_check
);
8380 cancel_delayed_work(&priv
->alive_start
);
8381 cancel_delayed_work(&priv
->post_associate
);
8382 cancel_work_sync(&priv
->beacon_update
);
8385 static struct attribute
*iwl3945_sysfs_entries
[] = {
8386 &dev_attr_antenna
.attr
,
8387 &dev_attr_channels
.attr
,
8388 &dev_attr_dump_errors
.attr
,
8389 &dev_attr_dump_events
.attr
,
8390 &dev_attr_flags
.attr
,
8391 &dev_attr_filter_flags
.attr
,
8392 #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT
8393 &dev_attr_measurement
.attr
,
8395 &dev_attr_power_level
.attr
,
8396 &dev_attr_rate
.attr
,
8397 &dev_attr_retry_rate
.attr
,
8398 &dev_attr_rf_kill
.attr
,
8399 &dev_attr_rs_window
.attr
,
8400 &dev_attr_statistics
.attr
,
8401 &dev_attr_status
.attr
,
8402 &dev_attr_temperature
.attr
,
8403 &dev_attr_tune
.attr
,
8404 &dev_attr_tx_power
.attr
,
8409 static struct attribute_group iwl3945_attribute_group
= {
8410 .name
= NULL
, /* put in device directory */
8411 .attrs
= iwl3945_sysfs_entries
,
8414 static struct ieee80211_ops iwl3945_hw_ops
= {
8415 .tx
= iwl3945_mac_tx
,
8416 .start
= iwl3945_mac_start
,
8417 .stop
= iwl3945_mac_stop
,
8418 .add_interface
= iwl3945_mac_add_interface
,
8419 .remove_interface
= iwl3945_mac_remove_interface
,
8420 .config
= iwl3945_mac_config
,
8421 .config_interface
= iwl3945_mac_config_interface
,
8422 .configure_filter
= iwl3945_configure_filter
,
8423 .set_key
= iwl3945_mac_set_key
,
8424 .get_stats
= iwl3945_mac_get_stats
,
8425 .get_tx_stats
= iwl3945_mac_get_tx_stats
,
8426 .conf_tx
= iwl3945_mac_conf_tx
,
8427 .get_tsf
= iwl3945_mac_get_tsf
,
8428 .reset_tsf
= iwl3945_mac_reset_tsf
,
8429 .beacon_update
= iwl3945_mac_beacon_update
,
8430 .hw_scan
= iwl3945_mac_hw_scan
8433 static int iwl3945_pci_probe(struct pci_dev
*pdev
, const struct pci_device_id
*ent
)
8437 struct iwl3945_priv
*priv
;
8438 struct ieee80211_hw
*hw
;
8440 DECLARE_MAC_BUF(mac
);
8442 /* Disabling hardware scan means that mac80211 will perform scans
8443 * "the hard way", rather than using device's scan. */
8444 if (iwl3945_param_disable_hw_scan
) {
8445 IWL_DEBUG_INFO("Disabling hw_scan\n");
8446 iwl3945_hw_ops
.hw_scan
= NULL
;
8449 if ((iwl3945_param_queues_num
> IWL_MAX_NUM_QUEUES
) ||
8450 (iwl3945_param_queues_num
< IWL_MIN_NUM_QUEUES
)) {
8451 IWL_ERROR("invalid queues_num, should be between %d and %d\n",
8452 IWL_MIN_NUM_QUEUES
, IWL_MAX_NUM_QUEUES
);
8457 /* mac80211 allocates memory for this device instance, including
8458 * space for this driver's private structure */
8459 hw
= ieee80211_alloc_hw(sizeof(struct iwl3945_priv
), &iwl3945_hw_ops
);
8461 IWL_ERROR("Can not allocate network device\n");
8465 SET_IEEE80211_DEV(hw
, &pdev
->dev
);
8467 hw
->rate_control_algorithm
= "iwl-3945-rs";
8469 IWL_DEBUG_INFO("*** LOAD DRIVER ***\n");
8473 priv
->pci_dev
= pdev
;
8475 /* Select antenna (may be helpful if only one antenna is connected) */
8476 priv
->antenna
= (enum iwl3945_antenna
)iwl3945_param_antenna
;
8477 #ifdef CONFIG_IWL3945_DEBUG
8478 iwl3945_debug_level
= iwl3945_param_debug
;
8479 atomic_set(&priv
->restrict_refcnt
, 0);
8481 priv
->retry_rate
= 1;
8483 priv
->ibss_beacon
= NULL
;
8485 /* Tell mac80211 and its clients (e.g. Wireless Extensions)
8486 * the range of signal quality values that we'll provide.
8487 * Negative values for level/noise indicate that we'll provide dBm.
8488 * For WE, at least, non-0 values here *enable* display of values
8489 * in app (iwconfig). */
8490 hw
->max_rssi
= -20; /* signal level, negative indicates dBm */
8491 hw
->max_noise
= -20; /* noise level, negative indicates dBm */
8492 hw
->max_signal
= 100; /* link quality indication (%) */
8494 /* Tell mac80211 our Tx characteristics */
8495 hw
->flags
= IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE
;
8497 /* 4 EDCA QOS priorities */
8500 spin_lock_init(&priv
->lock
);
8501 spin_lock_init(&priv
->power_data
.lock
);
8502 spin_lock_init(&priv
->sta_lock
);
8503 spin_lock_init(&priv
->hcmd_lock
);
8505 for (i
= 0; i
< IWL_IBSS_MAC_HASH_SIZE
; i
++)
8506 INIT_LIST_HEAD(&priv
->ibss_mac_hash
[i
]);
8508 INIT_LIST_HEAD(&priv
->free_frames
);
8510 mutex_init(&priv
->mutex
);
8511 if (pci_enable_device(pdev
)) {
8513 goto out_ieee80211_free_hw
;
8516 pci_set_master(pdev
);
8518 /* Clear the driver's (not device's) station table */
8519 iwl3945_clear_stations_table(priv
);
8521 priv
->data_retry_limit
= -1;
8522 priv
->ieee_channels
= NULL
;
8523 priv
->ieee_rates
= NULL
;
8526 err
= pci_set_dma_mask(pdev
, DMA_32BIT_MASK
);
8528 err
= pci_set_consistent_dma_mask(pdev
, DMA_32BIT_MASK
);
8530 printk(KERN_WARNING DRV_NAME
": No suitable DMA available.\n");
8531 goto out_pci_disable_device
;
8534 pci_set_drvdata(pdev
, priv
);
8535 err
= pci_request_regions(pdev
, DRV_NAME
);
8537 goto out_pci_disable_device
;
8539 /* We disable the RETRY_TIMEOUT register (0x41) to keep
8540 * PCI Tx retries from interfering with C3 CPU state */
8541 pci_write_config_byte(pdev
, 0x41, 0x00);
8543 priv
->hw_base
= pci_iomap(pdev
, 0, 0);
8544 if (!priv
->hw_base
) {
8546 goto out_pci_release_regions
;
8549 IWL_DEBUG_INFO("pci_resource_len = 0x%08llx\n",
8550 (unsigned long long) pci_resource_len(pdev
, 0));
8551 IWL_DEBUG_INFO("pci_resource_base = %p\n", priv
->hw_base
);
8553 /* Initialize module parameter values here */
8555 /* Disable radio (SW RF KILL) via parameter when loading driver */
8556 if (iwl3945_param_disable
) {
8557 set_bit(STATUS_RF_KILL_SW
, &priv
->status
);
8558 IWL_DEBUG_INFO("Radio disabled.\n");
8561 priv
->iw_mode
= IEEE80211_IF_TYPE_STA
;
8564 (priv
->pci_dev
->device
<< 16) | priv
->pci_dev
->subsystem_device
;
8567 case 0x42221005: /* 0x4222 0x8086 0x1005 is BG SKU */
8568 case 0x42221034: /* 0x4222 0x8086 0x1034 is BG SKU */
8569 case 0x42271014: /* 0x4227 0x8086 0x1014 is BG SKU */
8570 case 0x42221044: /* 0x4222 0x8086 0x1044 is BG SKU */
8575 * Rest are assumed ABG SKU -- if this is not the
8576 * case then the card will get the wrong 'Detected'
8577 * line in the kernel log however the code that
8578 * initializes the GEO table will detect no A-band
8579 * channels and remove the is_abg mask.
8586 printk(KERN_INFO DRV_NAME
8587 ": Detected Intel PRO/Wireless 3945%sBG Network Connection\n",
8588 priv
->is_abg
? "A" : "");
8590 /* Device-specific setup */
8591 if (iwl3945_hw_set_hw_setting(priv
)) {
8592 IWL_ERROR("failed to set hw settings\n");
8596 #ifdef CONFIG_IWL3945_QOS
8597 if (iwl3945_param_qos_enable
)
8598 priv
->qos_data
.qos_enable
= 1;
8600 iwl3945_reset_qos(priv
);
8602 priv
->qos_data
.qos_active
= 0;
8603 priv
->qos_data
.qos_cap
.val
= 0;
8604 #endif /* CONFIG_IWL3945_QOS */
8606 iwl3945_set_rxon_channel(priv
, MODE_IEEE80211G
, 6);
8607 iwl3945_setup_deferred_work(priv
);
8608 iwl3945_setup_rx_handlers(priv
);
8610 priv
->rates_mask
= IWL_RATES_MASK
;
8611 /* If power management is turned on, default to AC mode */
8612 priv
->power_mode
= IWL_POWER_AC
;
8613 priv
->user_txpower_limit
= IWL_DEFAULT_TX_POWER
;
8615 iwl3945_disable_interrupts(priv
);
8617 err
= sysfs_create_group(&pdev
->dev
.kobj
, &iwl3945_attribute_group
);
8619 IWL_ERROR("failed to create sysfs device attributes\n");
8620 goto out_release_irq
;
8624 iwl3945_set_bit(priv
, CSR_GIO_CHICKEN_BITS
,
8625 CSR_GIO_CHICKEN_BITS_REG_BIT_DIS_L0S_EXIT_TIMER
);
8627 iwl3945_set_bit(priv
, CSR_GP_CNTRL
, CSR_GP_CNTRL_REG_FLAG_INIT_DONE
);
8628 err
= iwl3945_poll_bit(priv
, CSR_GP_CNTRL
,
8629 CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY
,
8630 CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY
, 25000);
8632 IWL_DEBUG_INFO("Failed to init the card\n");
8633 goto out_remove_sysfs
;
8635 /* Read the EEPROM */
8636 err
= iwl3945_eeprom_init(priv
);
8638 IWL_ERROR("Unable to init EEPROM\n");
8639 goto out_remove_sysfs
;
8641 /* MAC Address location in EEPROM same for 3945/4965 */
8642 get_eeprom_mac(priv
, priv
->mac_addr
);
8643 IWL_DEBUG_INFO("MAC address: %s\n", print_mac(mac
, priv
->mac_addr
));
8644 SET_IEEE80211_PERM_ADDR(priv
->hw
, priv
->mac_addr
);
8646 err
= iwl3945_init_channel_map(priv
);
8648 IWL_ERROR("initializing regulatory failed: %d\n", err
);
8649 goto out_remove_sysfs
;
8652 err
= iwl3945_init_geos(priv
);
8654 IWL_ERROR("initializing geos failed: %d\n", err
);
8655 goto out_free_channel_map
;
8657 iwl3945_reset_channel_flag(priv
);
8659 iwl3945_rate_control_register(priv
->hw
);
8660 err
= ieee80211_register_hw(priv
->hw
);
8662 IWL_ERROR("Failed to register network device (error %d)\n", err
);
8666 priv
->hw
->conf
.beacon_int
= 100;
8667 priv
->mac80211_registered
= 1;
8668 pci_save_state(pdev
);
8669 pci_disable_device(pdev
);
8674 iwl3945_free_geos(priv
);
8675 out_free_channel_map
:
8676 iwl3945_free_channel_map(priv
);
8678 sysfs_remove_group(&pdev
->dev
.kobj
, &iwl3945_attribute_group
);
8681 destroy_workqueue(priv
->workqueue
);
8682 priv
->workqueue
= NULL
;
8683 iwl3945_unset_hw_setting(priv
);
8686 pci_iounmap(pdev
, priv
->hw_base
);
8687 out_pci_release_regions
:
8688 pci_release_regions(pdev
);
8689 out_pci_disable_device
:
8690 pci_disable_device(pdev
);
8691 pci_set_drvdata(pdev
, NULL
);
8692 out_ieee80211_free_hw
:
8693 ieee80211_free_hw(priv
->hw
);
8698 static void iwl3945_pci_remove(struct pci_dev
*pdev
)
8700 struct iwl3945_priv
*priv
= pci_get_drvdata(pdev
);
8701 struct list_head
*p
, *q
;
8707 IWL_DEBUG_INFO("*** UNLOAD DRIVER ***\n");
8709 set_bit(STATUS_EXIT_PENDING
, &priv
->status
);
8713 /* Free MAC hash list for ADHOC */
8714 for (i
= 0; i
< IWL_IBSS_MAC_HASH_SIZE
; i
++) {
8715 list_for_each_safe(p
, q
, &priv
->ibss_mac_hash
[i
]) {
8717 kfree(list_entry(p
, struct iwl3945_ibss_seq
, list
));
8721 sysfs_remove_group(&pdev
->dev
.kobj
, &iwl3945_attribute_group
);
8723 iwl3945_dealloc_ucode_pci(priv
);
8726 iwl3945_rx_queue_free(priv
, &priv
->rxq
);
8727 iwl3945_hw_txq_ctx_free(priv
);
8729 iwl3945_unset_hw_setting(priv
);
8730 iwl3945_clear_stations_table(priv
);
8732 if (priv
->mac80211_registered
) {
8733 ieee80211_unregister_hw(priv
->hw
);
8734 iwl3945_rate_control_unregister(priv
->hw
);
8737 /*netif_stop_queue(dev); */
8738 flush_workqueue(priv
->workqueue
);
8740 /* ieee80211_unregister_hw calls iwl3945_mac_stop, which flushes
8741 * priv->workqueue... so we can't take down the workqueue
8743 destroy_workqueue(priv
->workqueue
);
8744 priv
->workqueue
= NULL
;
8746 pci_iounmap(pdev
, priv
->hw_base
);
8747 pci_release_regions(pdev
);
8748 pci_disable_device(pdev
);
8749 pci_set_drvdata(pdev
, NULL
);
8751 iwl3945_free_channel_map(priv
);
8752 iwl3945_free_geos(priv
);
8754 if (priv
->ibss_beacon
)
8755 dev_kfree_skb(priv
->ibss_beacon
);
8757 ieee80211_free_hw(priv
->hw
);
8762 static int iwl3945_pci_suspend(struct pci_dev
*pdev
, pm_message_t state
)
8764 struct iwl3945_priv
*priv
= pci_get_drvdata(pdev
);
8766 if (priv
->is_open
) {
8767 set_bit(STATUS_IN_SUSPEND
, &priv
->status
);
8768 iwl3945_mac_stop(priv
->hw
);
8772 pci_set_power_state(pdev
, PCI_D3hot
);
8777 static int iwl3945_pci_resume(struct pci_dev
*pdev
)
8779 struct iwl3945_priv
*priv
= pci_get_drvdata(pdev
);
8781 pci_set_power_state(pdev
, PCI_D0
);
8784 iwl3945_mac_start(priv
->hw
);
8786 clear_bit(STATUS_IN_SUSPEND
, &priv
->status
);
8790 #endif /* CONFIG_PM */
8792 /*****************************************************************************
8794 * driver and module entry point
8796 *****************************************************************************/
8798 static struct pci_driver iwl3945_driver
= {
8800 .id_table
= iwl3945_hw_card_ids
,
8801 .probe
= iwl3945_pci_probe
,
8802 .remove
= __devexit_p(iwl3945_pci_remove
),
8804 .suspend
= iwl3945_pci_suspend
,
8805 .resume
= iwl3945_pci_resume
,
8809 static int __init
iwl3945_init(void)
8813 printk(KERN_INFO DRV_NAME
": " DRV_DESCRIPTION
", " DRV_VERSION
"\n");
8814 printk(KERN_INFO DRV_NAME
": " DRV_COPYRIGHT
"\n");
8815 ret
= pci_register_driver(&iwl3945_driver
);
8817 IWL_ERROR("Unable to initialize PCI module\n");
8820 #ifdef CONFIG_IWL3945_DEBUG
8821 ret
= driver_create_file(&iwl3945_driver
.driver
, &driver_attr_debug_level
);
8823 IWL_ERROR("Unable to create driver sysfs file\n");
8824 pci_unregister_driver(&iwl3945_driver
);
8832 static void __exit
iwl3945_exit(void)
8834 #ifdef CONFIG_IWL3945_DEBUG
8835 driver_remove_file(&iwl3945_driver
.driver
, &driver_attr_debug_level
);
8837 pci_unregister_driver(&iwl3945_driver
);
8840 module_param_named(antenna
, iwl3945_param_antenna
, int, 0444);
8841 MODULE_PARM_DESC(antenna
, "select antenna (1=Main, 2=Aux, default 0 [both])");
8842 module_param_named(disable
, iwl3945_param_disable
, int, 0444);
8843 MODULE_PARM_DESC(disable
, "manually disable the radio (default 0 [radio on])");
8844 module_param_named(hwcrypto
, iwl3945_param_hwcrypto
, int, 0444);
8845 MODULE_PARM_DESC(hwcrypto
,
8846 "using hardware crypto engine (default 0 [software])\n");
8847 module_param_named(debug
, iwl3945_param_debug
, int, 0444);
8848 MODULE_PARM_DESC(debug
, "debug output mask");
8849 module_param_named(disable_hw_scan
, iwl3945_param_disable_hw_scan
, int, 0444);
8850 MODULE_PARM_DESC(disable_hw_scan
, "disable hardware scanning (default 0)");
8852 module_param_named(queues_num
, iwl3945_param_queues_num
, int, 0444);
8853 MODULE_PARM_DESC(queues_num
, "number of hw queues.");
8856 module_param_named(qos_enable
, iwl3945_param_qos_enable
, int, 0444);
8857 MODULE_PARM_DESC(qos_enable
, "enable all QoS functionality");
8859 module_exit(iwl3945_exit
);
8860 module_init(iwl3945_init
);