1 /******************************************************************************
3 * Copyright(c) 2003 - 2008 Intel Corporation. All rights reserved.
5 * Portions of this file are derived from the ipw3945 project, as well
6 * as portions of the ieee80211 subsystem header files.
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of version 2 of the GNU General Public License as
10 * published by the Free Software Foundation.
12 * This program is distributed in the hope that it will be useful, but WITHOUT
13 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
17 * You should have received a copy of the GNU General Public License along with
18 * this program; if not, write to the Free Software Foundation, Inc.,
19 * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
21 * The full GNU General Public License is included in this distribution in the
22 * file called LICENSE.
24 * Contact Information:
25 * James P. Ketrenos <ipw2100-admin@linux.intel.com>
26 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
28 *****************************************************************************/
30 #include <linux/kernel.h>
31 #include <linux/module.h>
32 #include <linux/version.h>
33 #include <linux/init.h>
34 #include <linux/pci.h>
35 #include <linux/dma-mapping.h>
36 #include <linux/delay.h>
37 #include <linux/skbuff.h>
38 #include <linux/netdevice.h>
39 #include <linux/wireless.h>
40 #include <linux/firmware.h>
41 #include <linux/etherdevice.h>
42 #include <linux/if_arp.h>
44 #include <net/ieee80211_radiotap.h>
45 #include <net/mac80211.h>
47 #include <asm/div64.h>
49 #include "iwl-3945-core.h"
51 #include "iwl-helpers.h"
53 #ifdef CONFIG_IWL3945_DEBUG
54 u32 iwl3945_debug_level
;
57 static int iwl3945_tx_queue_update_write_ptr(struct iwl3945_priv
*priv
,
58 struct iwl3945_tx_queue
*txq
);
60 /******************************************************************************
64 ******************************************************************************/
66 /* module parameters */
67 static int iwl3945_param_disable_hw_scan
; /* def: 0 = use 3945's h/w scan */
68 static int iwl3945_param_debug
; /* def: 0 = minimal debug log messages */
69 static int iwl3945_param_disable
; /* def: 0 = enable radio */
70 static int iwl3945_param_antenna
; /* def: 0 = both antennas (use diversity) */
71 int iwl3945_param_hwcrypto
; /* def: 0 = use software encryption */
72 static int iwl3945_param_qos_enable
= 1; /* def: 1 = use quality of service */
73 int iwl3945_param_queues_num
= IWL39_MAX_NUM_QUEUES
; /* def: 8 Tx queues */
76 * module name, copyright, version, etc.
77 * NOTE: DRV_NAME is defined in iwlwifi.h for use by iwl-debug.h and printk
80 #define DRV_DESCRIPTION \
81 "Intel(R) PRO/Wireless 3945ABG/BG Network Connection driver for Linux"
83 #ifdef CONFIG_IWL3945_DEBUG
89 #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT
95 #define IWLWIFI_VERSION "1.2.26k" VD VS
96 #define DRV_COPYRIGHT "Copyright(c) 2003-2008 Intel Corporation"
97 #define DRV_VERSION IWLWIFI_VERSION
100 MODULE_DESCRIPTION(DRV_DESCRIPTION
);
101 MODULE_VERSION(DRV_VERSION
);
102 MODULE_AUTHOR(DRV_COPYRIGHT
);
103 MODULE_LICENSE("GPL");
105 static __le16
*ieee80211_get_qos_ctrl(struct ieee80211_hdr
*hdr
)
107 u16 fc
= le16_to_cpu(hdr
->frame_control
);
108 int hdr_len
= ieee80211_get_hdrlen(fc
);
110 if ((fc
& 0x00cc) == (IEEE80211_STYPE_QOS_DATA
| IEEE80211_FTYPE_DATA
))
111 return (__le16
*) ((u8
*) hdr
+ hdr_len
- QOS_CONTROL_LEN
);
115 static const struct ieee80211_supported_band
*iwl3945_get_band(
116 struct iwl3945_priv
*priv
, enum ieee80211_band band
)
118 return priv
->hw
->wiphy
->bands
[band
];
121 static int iwl3945_is_empty_essid(const char *essid
, int essid_len
)
123 /* Single white space is for Linksys APs */
124 if (essid_len
== 1 && essid
[0] == ' ')
127 /* Otherwise, if the entire essid is 0, we assume it is hidden */
130 if (essid
[essid_len
] != '\0')
137 static const char *iwl3945_escape_essid(const char *essid
, u8 essid_len
)
139 static char escaped
[IW_ESSID_MAX_SIZE
* 2 + 1];
140 const char *s
= essid
;
143 if (iwl3945_is_empty_essid(essid
, essid_len
)) {
144 memcpy(escaped
, "<hidden>", sizeof("<hidden>"));
148 essid_len
= min(essid_len
, (u8
) IW_ESSID_MAX_SIZE
);
149 while (essid_len
--) {
161 /*************** DMA-QUEUE-GENERAL-FUNCTIONS *****
164 * Theory of operation
166 * A Tx or Rx queue resides in host DRAM, and is comprised of a circular buffer
167 * of buffer descriptors, each of which points to one or more data buffers for
168 * the device to read from or fill. Driver and device exchange status of each
169 * queue via "read" and "write" pointers. Driver keeps minimum of 2 empty
170 * entries in each circular buffer, to protect against confusing empty and full
173 * The device reads or writes the data in the queues via the device's several
174 * DMA/FIFO channels. Each queue is mapped to a single DMA channel.
176 * For Tx queue, there are low mark and high mark limits. If, after queuing
177 * the packet for Tx, free space become < low mark, Tx queue stopped. When
178 * reclaiming packets (on 'tx done IRQ), if free space become > high mark,
181 * The 3945 operates with six queues: One receive queue, one transmit queue
182 * (#4) for sending commands to the device firmware, and four transmit queues
183 * (#0-3) for data tx via EDCA. An additional 2 HCCA queues are unused.
184 ***************************************************/
186 int iwl3945_queue_space(const struct iwl3945_queue
*q
)
188 int s
= q
->read_ptr
- q
->write_ptr
;
190 if (q
->read_ptr
> q
->write_ptr
)
195 /* keep some reserve to not confuse empty and full situations */
202 int iwl3945_x2_queue_used(const struct iwl3945_queue
*q
, int i
)
204 return q
->write_ptr
> q
->read_ptr
?
205 (i
>= q
->read_ptr
&& i
< q
->write_ptr
) :
206 !(i
< q
->read_ptr
&& i
>= q
->write_ptr
);
210 static inline u8
get_cmd_index(struct iwl3945_queue
*q
, u32 index
, int is_huge
)
212 /* This is for scan command, the big buffer at end of command array */
214 return q
->n_window
; /* must be power of 2 */
216 /* Otherwise, use normal size buffers */
217 return index
& (q
->n_window
- 1);
221 * iwl3945_queue_init - Initialize queue's high/low-water and read/write indexes
223 static int iwl3945_queue_init(struct iwl3945_priv
*priv
, struct iwl3945_queue
*q
,
224 int count
, int slots_num
, u32 id
)
227 q
->n_window
= slots_num
;
230 /* count must be power-of-two size, otherwise iwl_queue_inc_wrap
231 * and iwl_queue_dec_wrap are broken. */
232 BUG_ON(!is_power_of_2(count
));
234 /* slots_num must be power-of-two size, otherwise
235 * get_cmd_index is broken. */
236 BUG_ON(!is_power_of_2(slots_num
));
238 q
->low_mark
= q
->n_window
/ 4;
242 q
->high_mark
= q
->n_window
/ 8;
243 if (q
->high_mark
< 2)
246 q
->write_ptr
= q
->read_ptr
= 0;
252 * iwl3945_tx_queue_alloc - Alloc driver data and TFD CB for one Tx/cmd queue
254 static int iwl3945_tx_queue_alloc(struct iwl3945_priv
*priv
,
255 struct iwl3945_tx_queue
*txq
, u32 id
)
257 struct pci_dev
*dev
= priv
->pci_dev
;
259 /* Driver private data, only for Tx (not command) queues,
260 * not shared with device. */
261 if (id
!= IWL_CMD_QUEUE_NUM
) {
262 txq
->txb
= kmalloc(sizeof(txq
->txb
[0]) *
263 TFD_QUEUE_SIZE_MAX
, GFP_KERNEL
);
265 IWL_ERROR("kmalloc for auxiliary BD "
266 "structures failed\n");
272 /* Circular buffer of transmit frame descriptors (TFDs),
273 * shared with device */
274 txq
->bd
= pci_alloc_consistent(dev
,
275 sizeof(txq
->bd
[0]) * TFD_QUEUE_SIZE_MAX
,
279 IWL_ERROR("pci_alloc_consistent(%zd) failed\n",
280 sizeof(txq
->bd
[0]) * TFD_QUEUE_SIZE_MAX
);
297 * iwl3945_tx_queue_init - Allocate and initialize one tx/cmd queue
299 int iwl3945_tx_queue_init(struct iwl3945_priv
*priv
,
300 struct iwl3945_tx_queue
*txq
, int slots_num
, u32 txq_id
)
302 struct pci_dev
*dev
= priv
->pci_dev
;
307 * Alloc buffer array for commands (Tx or other types of commands).
308 * For the command queue (#4), allocate command space + one big
309 * command for scan, since scan command is very huge; the system will
310 * not have two scans at the same time, so only one is needed.
311 * For data Tx queues (all other queues), no super-size command
314 len
= sizeof(struct iwl3945_cmd
) * slots_num
;
315 if (txq_id
== IWL_CMD_QUEUE_NUM
)
316 len
+= IWL_MAX_SCAN_SIZE
;
317 txq
->cmd
= pci_alloc_consistent(dev
, len
, &txq
->dma_addr_cmd
);
321 /* Alloc driver data array and TFD circular buffer */
322 rc
= iwl3945_tx_queue_alloc(priv
, txq
, txq_id
);
324 pci_free_consistent(dev
, len
, txq
->cmd
, txq
->dma_addr_cmd
);
328 txq
->need_update
= 0;
330 /* TFD_QUEUE_SIZE_MAX must be power-of-two size, otherwise
331 * iwl_queue_inc_wrap and iwl_queue_dec_wrap are broken. */
332 BUILD_BUG_ON(TFD_QUEUE_SIZE_MAX
& (TFD_QUEUE_SIZE_MAX
- 1));
334 /* Initialize queue high/low-water, head/tail indexes */
335 iwl3945_queue_init(priv
, &txq
->q
, TFD_QUEUE_SIZE_MAX
, slots_num
, txq_id
);
337 /* Tell device where to find queue, enable DMA channel. */
338 iwl3945_hw_tx_queue_init(priv
, txq
);
344 * iwl3945_tx_queue_free - Deallocate DMA queue.
345 * @txq: Transmit queue to deallocate.
347 * Empty queue by removing and destroying all BD's.
349 * 0-fill, but do not free "txq" descriptor structure.
351 void iwl3945_tx_queue_free(struct iwl3945_priv
*priv
, struct iwl3945_tx_queue
*txq
)
353 struct iwl3945_queue
*q
= &txq
->q
;
354 struct pci_dev
*dev
= priv
->pci_dev
;
360 /* first, empty all BD's */
361 for (; q
->write_ptr
!= q
->read_ptr
;
362 q
->read_ptr
= iwl_queue_inc_wrap(q
->read_ptr
, q
->n_bd
))
363 iwl3945_hw_txq_free_tfd(priv
, txq
);
365 len
= sizeof(struct iwl3945_cmd
) * q
->n_window
;
366 if (q
->id
== IWL_CMD_QUEUE_NUM
)
367 len
+= IWL_MAX_SCAN_SIZE
;
369 /* De-alloc array of command/tx buffers */
370 pci_free_consistent(dev
, len
, txq
->cmd
, txq
->dma_addr_cmd
);
372 /* De-alloc circular buffer of TFDs */
374 pci_free_consistent(dev
, sizeof(struct iwl3945_tfd_frame
) *
375 txq
->q
.n_bd
, txq
->bd
, txq
->q
.dma_addr
);
377 /* De-alloc array of per-TFD driver data */
383 /* 0-fill queue descriptor structure */
384 memset(txq
, 0, sizeof(*txq
));
387 const u8 iwl3945_broadcast_addr
[ETH_ALEN
] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
389 /*************** STATION TABLE MANAGEMENT ****
390 * mac80211 should be examined to determine if sta_info is duplicating
391 * the functionality provided here
394 /**************************************************************/
395 #if 0 /* temporary disable till we add real remove station */
397 * iwl3945_remove_station - Remove driver's knowledge of station.
399 * NOTE: This does not remove station from device's station table.
401 static u8
iwl3945_remove_station(struct iwl3945_priv
*priv
, const u8
*addr
, int is_ap
)
403 int index
= IWL_INVALID_STATION
;
407 spin_lock_irqsave(&priv
->sta_lock
, flags
);
411 else if (is_broadcast_ether_addr(addr
))
412 index
= priv
->hw_setting
.bcast_sta_id
;
414 for (i
= IWL_STA_ID
; i
< priv
->hw_setting
.max_stations
; i
++)
415 if (priv
->stations
[i
].used
&&
416 !compare_ether_addr(priv
->stations
[i
].sta
.sta
.addr
,
422 if (unlikely(index
== IWL_INVALID_STATION
))
425 if (priv
->stations
[index
].used
) {
426 priv
->stations
[index
].used
= 0;
427 priv
->num_stations
--;
430 BUG_ON(priv
->num_stations
< 0);
433 spin_unlock_irqrestore(&priv
->sta_lock
, flags
);
439 * iwl3945_clear_stations_table - Clear the driver's station table
441 * NOTE: This does not clear or otherwise alter the device's station table.
443 static void iwl3945_clear_stations_table(struct iwl3945_priv
*priv
)
447 spin_lock_irqsave(&priv
->sta_lock
, flags
);
449 priv
->num_stations
= 0;
450 memset(priv
->stations
, 0, sizeof(priv
->stations
));
452 spin_unlock_irqrestore(&priv
->sta_lock
, flags
);
456 * iwl3945_add_station - Add station to station tables in driver and device
458 u8
iwl3945_add_station(struct iwl3945_priv
*priv
, const u8
*addr
, int is_ap
, u8 flags
)
461 int index
= IWL_INVALID_STATION
;
462 struct iwl3945_station_entry
*station
;
463 unsigned long flags_spin
;
464 DECLARE_MAC_BUF(mac
);
467 spin_lock_irqsave(&priv
->sta_lock
, flags_spin
);
470 else if (is_broadcast_ether_addr(addr
))
471 index
= priv
->hw_setting
.bcast_sta_id
;
473 for (i
= IWL_STA_ID
; i
< priv
->hw_setting
.max_stations
; i
++) {
474 if (!compare_ether_addr(priv
->stations
[i
].sta
.sta
.addr
,
480 if (!priv
->stations
[i
].used
&&
481 index
== IWL_INVALID_STATION
)
485 /* These two conditions has the same outcome but keep them separate
486 since they have different meaning */
487 if (unlikely(index
== IWL_INVALID_STATION
)) {
488 spin_unlock_irqrestore(&priv
->sta_lock
, flags_spin
);
492 if (priv
->stations
[index
].used
&&
493 !compare_ether_addr(priv
->stations
[index
].sta
.sta
.addr
, addr
)) {
494 spin_unlock_irqrestore(&priv
->sta_lock
, flags_spin
);
498 IWL_DEBUG_ASSOC("Add STA ID %d: %s\n", index
, print_mac(mac
, addr
));
499 station
= &priv
->stations
[index
];
501 priv
->num_stations
++;
503 /* Set up the REPLY_ADD_STA command to send to device */
504 memset(&station
->sta
, 0, sizeof(struct iwl3945_addsta_cmd
));
505 memcpy(station
->sta
.sta
.addr
, addr
, ETH_ALEN
);
506 station
->sta
.mode
= 0;
507 station
->sta
.sta
.sta_id
= index
;
508 station
->sta
.station_flags
= 0;
510 if (priv
->band
== IEEE80211_BAND_5GHZ
)
511 rate
= IWL_RATE_6M_PLCP
;
513 rate
= IWL_RATE_1M_PLCP
;
515 /* Turn on both antennas for the station... */
516 station
->sta
.rate_n_flags
=
517 iwl3945_hw_set_rate_n_flags(rate
, RATE_MCS_ANT_AB_MSK
);
518 station
->current_rate
.rate_n_flags
=
519 le16_to_cpu(station
->sta
.rate_n_flags
);
521 spin_unlock_irqrestore(&priv
->sta_lock
, flags_spin
);
523 /* Add station to device's station table */
524 iwl3945_send_add_station(priv
, &station
->sta
, flags
);
529 /*************** DRIVER STATUS FUNCTIONS *****/
531 static inline int iwl3945_is_ready(struct iwl3945_priv
*priv
)
533 /* The adapter is 'ready' if READY and GEO_CONFIGURED bits are
534 * set but EXIT_PENDING is not */
535 return test_bit(STATUS_READY
, &priv
->status
) &&
536 test_bit(STATUS_GEO_CONFIGURED
, &priv
->status
) &&
537 !test_bit(STATUS_EXIT_PENDING
, &priv
->status
);
540 static inline int iwl3945_is_alive(struct iwl3945_priv
*priv
)
542 return test_bit(STATUS_ALIVE
, &priv
->status
);
545 static inline int iwl3945_is_init(struct iwl3945_priv
*priv
)
547 return test_bit(STATUS_INIT
, &priv
->status
);
550 static inline int iwl3945_is_rfkill(struct iwl3945_priv
*priv
)
552 return test_bit(STATUS_RF_KILL_HW
, &priv
->status
) ||
553 test_bit(STATUS_RF_KILL_SW
, &priv
->status
);
556 static inline int iwl3945_is_ready_rf(struct iwl3945_priv
*priv
)
559 if (iwl3945_is_rfkill(priv
))
562 return iwl3945_is_ready(priv
);
565 /*************** HOST COMMAND QUEUE FUNCTIONS *****/
567 #define IWL_CMD(x) case x : return #x
569 static const char *get_cmd_string(u8 cmd
)
572 IWL_CMD(REPLY_ALIVE
);
573 IWL_CMD(REPLY_ERROR
);
575 IWL_CMD(REPLY_RXON_ASSOC
);
576 IWL_CMD(REPLY_QOS_PARAM
);
577 IWL_CMD(REPLY_RXON_TIMING
);
578 IWL_CMD(REPLY_ADD_STA
);
579 IWL_CMD(REPLY_REMOVE_STA
);
580 IWL_CMD(REPLY_REMOVE_ALL_STA
);
581 IWL_CMD(REPLY_3945_RX
);
583 IWL_CMD(REPLY_RATE_SCALE
);
584 IWL_CMD(REPLY_LEDS_CMD
);
585 IWL_CMD(REPLY_TX_LINK_QUALITY_CMD
);
586 IWL_CMD(RADAR_NOTIFICATION
);
587 IWL_CMD(REPLY_QUIET_CMD
);
588 IWL_CMD(REPLY_CHANNEL_SWITCH
);
589 IWL_CMD(CHANNEL_SWITCH_NOTIFICATION
);
590 IWL_CMD(REPLY_SPECTRUM_MEASUREMENT_CMD
);
591 IWL_CMD(SPECTRUM_MEASURE_NOTIFICATION
);
592 IWL_CMD(POWER_TABLE_CMD
);
593 IWL_CMD(PM_SLEEP_NOTIFICATION
);
594 IWL_CMD(PM_DEBUG_STATISTIC_NOTIFIC
);
595 IWL_CMD(REPLY_SCAN_CMD
);
596 IWL_CMD(REPLY_SCAN_ABORT_CMD
);
597 IWL_CMD(SCAN_START_NOTIFICATION
);
598 IWL_CMD(SCAN_RESULTS_NOTIFICATION
);
599 IWL_CMD(SCAN_COMPLETE_NOTIFICATION
);
600 IWL_CMD(BEACON_NOTIFICATION
);
601 IWL_CMD(REPLY_TX_BEACON
);
602 IWL_CMD(WHO_IS_AWAKE_NOTIFICATION
);
603 IWL_CMD(QUIET_NOTIFICATION
);
604 IWL_CMD(REPLY_TX_PWR_TABLE_CMD
);
605 IWL_CMD(MEASURE_ABORT_NOTIFICATION
);
606 IWL_CMD(REPLY_BT_CONFIG
);
607 IWL_CMD(REPLY_STATISTICS_CMD
);
608 IWL_CMD(STATISTICS_NOTIFICATION
);
609 IWL_CMD(REPLY_CARD_STATE_CMD
);
610 IWL_CMD(CARD_STATE_NOTIFICATION
);
611 IWL_CMD(MISSED_BEACONS_NOTIFICATION
);
618 #define HOST_COMPLETE_TIMEOUT (HZ / 2)
621 * iwl3945_enqueue_hcmd - enqueue a uCode command
622 * @priv: device private data point
623 * @cmd: a point to the ucode command structure
625 * The function returns < 0 values to indicate the operation is
626 * failed. On success, it turns the index (> 0) of command in the
629 static int iwl3945_enqueue_hcmd(struct iwl3945_priv
*priv
, struct iwl3945_host_cmd
*cmd
)
631 struct iwl3945_tx_queue
*txq
= &priv
->txq
[IWL_CMD_QUEUE_NUM
];
632 struct iwl3945_queue
*q
= &txq
->q
;
633 struct iwl3945_tfd_frame
*tfd
;
635 struct iwl3945_cmd
*out_cmd
;
637 u16 fix_size
= (u16
)(cmd
->len
+ sizeof(out_cmd
->hdr
));
638 dma_addr_t phys_addr
;
644 /* If any of the command structures end up being larger than
645 * the TFD_MAX_PAYLOAD_SIZE, and it sent as a 'small' command then
646 * we will need to increase the size of the TFD entries */
647 BUG_ON((fix_size
> TFD_MAX_PAYLOAD_SIZE
) &&
648 !(cmd
->meta
.flags
& CMD_SIZE_HUGE
));
651 if (iwl3945_is_rfkill(priv
)) {
652 IWL_DEBUG_INFO("Not sending command - RF KILL");
656 if (iwl3945_queue_space(q
) < ((cmd
->meta
.flags
& CMD_ASYNC
) ? 2 : 1)) {
657 IWL_ERROR("No space for Tx\n");
661 spin_lock_irqsave(&priv
->hcmd_lock
, flags
);
663 tfd
= &txq
->bd
[q
->write_ptr
];
664 memset(tfd
, 0, sizeof(*tfd
));
666 control_flags
= (u32
*) tfd
;
668 idx
= get_cmd_index(q
, q
->write_ptr
, cmd
->meta
.flags
& CMD_SIZE_HUGE
);
669 out_cmd
= &txq
->cmd
[idx
];
671 out_cmd
->hdr
.cmd
= cmd
->id
;
672 memcpy(&out_cmd
->meta
, &cmd
->meta
, sizeof(cmd
->meta
));
673 memcpy(&out_cmd
->cmd
.payload
, cmd
->data
, cmd
->len
);
675 /* At this point, the out_cmd now has all of the incoming cmd
678 out_cmd
->hdr
.flags
= 0;
679 out_cmd
->hdr
.sequence
= cpu_to_le16(QUEUE_TO_SEQ(IWL_CMD_QUEUE_NUM
) |
680 INDEX_TO_SEQ(q
->write_ptr
));
681 if (out_cmd
->meta
.flags
& CMD_SIZE_HUGE
)
682 out_cmd
->hdr
.sequence
|= cpu_to_le16(SEQ_HUGE_FRAME
);
684 phys_addr
= txq
->dma_addr_cmd
+ sizeof(txq
->cmd
[0]) * idx
+
685 offsetof(struct iwl3945_cmd
, hdr
);
686 iwl3945_hw_txq_attach_buf_to_tfd(priv
, tfd
, phys_addr
, fix_size
);
688 pad
= U32_PAD(cmd
->len
);
689 count
= TFD_CTL_COUNT_GET(*control_flags
);
690 *control_flags
= TFD_CTL_COUNT_SET(count
) | TFD_CTL_PAD_SET(pad
);
692 IWL_DEBUG_HC("Sending command %s (#%x), seq: 0x%04X, "
693 "%d bytes at %d[%d]:%d\n",
694 get_cmd_string(out_cmd
->hdr
.cmd
),
695 out_cmd
->hdr
.cmd
, le16_to_cpu(out_cmd
->hdr
.sequence
),
696 fix_size
, q
->write_ptr
, idx
, IWL_CMD_QUEUE_NUM
);
698 txq
->need_update
= 1;
700 /* Increment and update queue's write index */
701 q
->write_ptr
= iwl_queue_inc_wrap(q
->write_ptr
, q
->n_bd
);
702 ret
= iwl3945_tx_queue_update_write_ptr(priv
, txq
);
704 spin_unlock_irqrestore(&priv
->hcmd_lock
, flags
);
705 return ret
? ret
: idx
;
708 static int iwl3945_send_cmd_async(struct iwl3945_priv
*priv
, struct iwl3945_host_cmd
*cmd
)
712 BUG_ON(!(cmd
->meta
.flags
& CMD_ASYNC
));
714 /* An asynchronous command can not expect an SKB to be set. */
715 BUG_ON(cmd
->meta
.flags
& CMD_WANT_SKB
);
717 /* An asynchronous command MUST have a callback. */
718 BUG_ON(!cmd
->meta
.u
.callback
);
720 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
723 ret
= iwl3945_enqueue_hcmd(priv
, cmd
);
725 IWL_ERROR("Error sending %s: iwl3945_enqueue_hcmd failed: %d\n",
726 get_cmd_string(cmd
->id
), ret
);
732 static int iwl3945_send_cmd_sync(struct iwl3945_priv
*priv
, struct iwl3945_host_cmd
*cmd
)
737 BUG_ON(cmd
->meta
.flags
& CMD_ASYNC
);
739 /* A synchronous command can not have a callback set. */
740 BUG_ON(cmd
->meta
.u
.callback
!= NULL
);
742 if (test_and_set_bit(STATUS_HCMD_SYNC_ACTIVE
, &priv
->status
)) {
743 IWL_ERROR("Error sending %s: Already sending a host command\n",
744 get_cmd_string(cmd
->id
));
749 set_bit(STATUS_HCMD_ACTIVE
, &priv
->status
);
751 if (cmd
->meta
.flags
& CMD_WANT_SKB
)
752 cmd
->meta
.source
= &cmd
->meta
;
754 cmd_idx
= iwl3945_enqueue_hcmd(priv
, cmd
);
757 IWL_ERROR("Error sending %s: iwl3945_enqueue_hcmd failed: %d\n",
758 get_cmd_string(cmd
->id
), ret
);
762 ret
= wait_event_interruptible_timeout(priv
->wait_command_queue
,
763 !test_bit(STATUS_HCMD_ACTIVE
, &priv
->status
),
764 HOST_COMPLETE_TIMEOUT
);
766 if (test_bit(STATUS_HCMD_ACTIVE
, &priv
->status
)) {
767 IWL_ERROR("Error sending %s: time out after %dms.\n",
768 get_cmd_string(cmd
->id
),
769 jiffies_to_msecs(HOST_COMPLETE_TIMEOUT
));
771 clear_bit(STATUS_HCMD_ACTIVE
, &priv
->status
);
777 if (test_bit(STATUS_RF_KILL_HW
, &priv
->status
)) {
778 IWL_DEBUG_INFO("Command %s aborted: RF KILL Switch\n",
779 get_cmd_string(cmd
->id
));
783 if (test_bit(STATUS_FW_ERROR
, &priv
->status
)) {
784 IWL_DEBUG_INFO("Command %s failed: FW Error\n",
785 get_cmd_string(cmd
->id
));
789 if ((cmd
->meta
.flags
& CMD_WANT_SKB
) && !cmd
->meta
.u
.skb
) {
790 IWL_ERROR("Error: Response NULL in '%s'\n",
791 get_cmd_string(cmd
->id
));
800 if (cmd
->meta
.flags
& CMD_WANT_SKB
) {
801 struct iwl3945_cmd
*qcmd
;
803 /* Cancel the CMD_WANT_SKB flag for the cmd in the
804 * TX cmd queue. Otherwise in case the cmd comes
805 * in later, it will possibly set an invalid
806 * address (cmd->meta.source). */
807 qcmd
= &priv
->txq
[IWL_CMD_QUEUE_NUM
].cmd
[cmd_idx
];
808 qcmd
->meta
.flags
&= ~CMD_WANT_SKB
;
811 if (cmd
->meta
.u
.skb
) {
812 dev_kfree_skb_any(cmd
->meta
.u
.skb
);
813 cmd
->meta
.u
.skb
= NULL
;
816 clear_bit(STATUS_HCMD_SYNC_ACTIVE
, &priv
->status
);
820 int iwl3945_send_cmd(struct iwl3945_priv
*priv
, struct iwl3945_host_cmd
*cmd
)
822 if (cmd
->meta
.flags
& CMD_ASYNC
)
823 return iwl3945_send_cmd_async(priv
, cmd
);
825 return iwl3945_send_cmd_sync(priv
, cmd
);
828 int iwl3945_send_cmd_pdu(struct iwl3945_priv
*priv
, u8 id
, u16 len
, const void *data
)
830 struct iwl3945_host_cmd cmd
= {
836 return iwl3945_send_cmd_sync(priv
, &cmd
);
839 static int __must_check
iwl3945_send_cmd_u32(struct iwl3945_priv
*priv
, u8 id
, u32 val
)
841 struct iwl3945_host_cmd cmd
= {
847 return iwl3945_send_cmd_sync(priv
, &cmd
);
850 int iwl3945_send_statistics_request(struct iwl3945_priv
*priv
)
852 return iwl3945_send_cmd_u32(priv
, REPLY_STATISTICS_CMD
, 0);
856 * iwl3945_set_rxon_channel - Set the phymode and channel values in staging RXON
857 * @band: 2.4 or 5 GHz band
858 * @channel: Any channel valid for the requested band
860 * In addition to setting the staging RXON, priv->band is also set.
862 * NOTE: Does not commit to the hardware; it sets appropriate bit fields
863 * in the staging RXON flag structure based on the band
865 static int iwl3945_set_rxon_channel(struct iwl3945_priv
*priv
,
866 enum ieee80211_band band
,
869 if (!iwl3945_get_channel_info(priv
, band
, channel
)) {
870 IWL_DEBUG_INFO("Could not set channel to %d [%d]\n",
875 if ((le16_to_cpu(priv
->staging_rxon
.channel
) == channel
) &&
876 (priv
->band
== band
))
879 priv
->staging_rxon
.channel
= cpu_to_le16(channel
);
880 if (band
== IEEE80211_BAND_5GHZ
)
881 priv
->staging_rxon
.flags
&= ~RXON_FLG_BAND_24G_MSK
;
883 priv
->staging_rxon
.flags
|= RXON_FLG_BAND_24G_MSK
;
887 IWL_DEBUG_INFO("Staging channel set to %d [%d]\n", channel
, band
);
893 * iwl3945_check_rxon_cmd - validate RXON structure is valid
895 * NOTE: This is really only useful during development and can eventually
896 * be #ifdef'd out once the driver is stable and folks aren't actively
899 static int iwl3945_check_rxon_cmd(struct iwl3945_rxon_cmd
*rxon
)
904 if (rxon
->flags
& RXON_FLG_BAND_24G_MSK
) {
905 error
|= le32_to_cpu(rxon
->flags
&
906 (RXON_FLG_TGJ_NARROW_BAND_MSK
|
907 RXON_FLG_RADAR_DETECT_MSK
));
909 IWL_WARNING("check 24G fields %d | %d\n",
912 error
|= (rxon
->flags
& RXON_FLG_SHORT_SLOT_MSK
) ?
913 0 : le32_to_cpu(RXON_FLG_SHORT_SLOT_MSK
);
915 IWL_WARNING("check 52 fields %d | %d\n",
917 error
|= le32_to_cpu(rxon
->flags
& RXON_FLG_CCK_MSK
);
919 IWL_WARNING("check 52 CCK %d | %d\n",
922 error
|= (rxon
->node_addr
[0] | rxon
->bssid_addr
[0]) & 0x1;
924 IWL_WARNING("check mac addr %d | %d\n", counter
++, error
);
926 /* make sure basic rates 6Mbps and 1Mbps are supported */
927 error
|= (((rxon
->ofdm_basic_rates
& IWL_RATE_6M_MASK
) == 0) &&
928 ((rxon
->cck_basic_rates
& IWL_RATE_1M_MASK
) == 0));
930 IWL_WARNING("check basic rate %d | %d\n", counter
++, error
);
932 error
|= (le16_to_cpu(rxon
->assoc_id
) > 2007);
934 IWL_WARNING("check assoc id %d | %d\n", counter
++, error
);
936 error
|= ((rxon
->flags
& (RXON_FLG_CCK_MSK
| RXON_FLG_SHORT_SLOT_MSK
))
937 == (RXON_FLG_CCK_MSK
| RXON_FLG_SHORT_SLOT_MSK
));
939 IWL_WARNING("check CCK and short slot %d | %d\n",
942 error
|= ((rxon
->flags
& (RXON_FLG_CCK_MSK
| RXON_FLG_AUTO_DETECT_MSK
))
943 == (RXON_FLG_CCK_MSK
| RXON_FLG_AUTO_DETECT_MSK
));
945 IWL_WARNING("check CCK & auto detect %d | %d\n",
948 error
|= ((rxon
->flags
& (RXON_FLG_AUTO_DETECT_MSK
|
949 RXON_FLG_TGG_PROTECT_MSK
)) == RXON_FLG_TGG_PROTECT_MSK
);
951 IWL_WARNING("check TGG and auto detect %d | %d\n",
954 if ((rxon
->flags
& RXON_FLG_DIS_DIV_MSK
))
955 error
|= ((rxon
->flags
& (RXON_FLG_ANT_B_MSK
|
956 RXON_FLG_ANT_A_MSK
)) == 0);
958 IWL_WARNING("check antenna %d %d\n", counter
++, error
);
961 IWL_WARNING("Tuning to channel %d\n",
962 le16_to_cpu(rxon
->channel
));
965 IWL_ERROR("Not a valid iwl3945_rxon_assoc_cmd field values\n");
972 * iwl3945_full_rxon_required - check if full RXON (vs RXON_ASSOC) cmd is needed
973 * @priv: staging_rxon is compared to active_rxon
975 * If the RXON structure is changing enough to require a new tune,
976 * or is clearing the RXON_FILTER_ASSOC_MSK, then return 1 to indicate that
977 * a new tune (full RXON command, rather than RXON_ASSOC cmd) is required.
979 static int iwl3945_full_rxon_required(struct iwl3945_priv
*priv
)
982 /* These items are only settable from the full RXON command */
983 if (!(priv
->active_rxon
.filter_flags
& RXON_FILTER_ASSOC_MSK
) ||
984 compare_ether_addr(priv
->staging_rxon
.bssid_addr
,
985 priv
->active_rxon
.bssid_addr
) ||
986 compare_ether_addr(priv
->staging_rxon
.node_addr
,
987 priv
->active_rxon
.node_addr
) ||
988 compare_ether_addr(priv
->staging_rxon
.wlap_bssid_addr
,
989 priv
->active_rxon
.wlap_bssid_addr
) ||
990 (priv
->staging_rxon
.dev_type
!= priv
->active_rxon
.dev_type
) ||
991 (priv
->staging_rxon
.channel
!= priv
->active_rxon
.channel
) ||
992 (priv
->staging_rxon
.air_propagation
!=
993 priv
->active_rxon
.air_propagation
) ||
994 (priv
->staging_rxon
.assoc_id
!= priv
->active_rxon
.assoc_id
))
997 /* flags, filter_flags, ofdm_basic_rates, and cck_basic_rates can
998 * be updated with the RXON_ASSOC command -- however only some
999 * flag transitions are allowed using RXON_ASSOC */
1001 /* Check if we are not switching bands */
1002 if ((priv
->staging_rxon
.flags
& RXON_FLG_BAND_24G_MSK
) !=
1003 (priv
->active_rxon
.flags
& RXON_FLG_BAND_24G_MSK
))
1006 /* Check if we are switching association toggle */
1007 if ((priv
->staging_rxon
.filter_flags
& RXON_FILTER_ASSOC_MSK
) !=
1008 (priv
->active_rxon
.filter_flags
& RXON_FILTER_ASSOC_MSK
))
1014 static int iwl3945_send_rxon_assoc(struct iwl3945_priv
*priv
)
1017 struct iwl3945_rx_packet
*res
= NULL
;
1018 struct iwl3945_rxon_assoc_cmd rxon_assoc
;
1019 struct iwl3945_host_cmd cmd
= {
1020 .id
= REPLY_RXON_ASSOC
,
1021 .len
= sizeof(rxon_assoc
),
1022 .meta
.flags
= CMD_WANT_SKB
,
1023 .data
= &rxon_assoc
,
1025 const struct iwl3945_rxon_cmd
*rxon1
= &priv
->staging_rxon
;
1026 const struct iwl3945_rxon_cmd
*rxon2
= &priv
->active_rxon
;
1028 if ((rxon1
->flags
== rxon2
->flags
) &&
1029 (rxon1
->filter_flags
== rxon2
->filter_flags
) &&
1030 (rxon1
->cck_basic_rates
== rxon2
->cck_basic_rates
) &&
1031 (rxon1
->ofdm_basic_rates
== rxon2
->ofdm_basic_rates
)) {
1032 IWL_DEBUG_INFO("Using current RXON_ASSOC. Not resending.\n");
1036 rxon_assoc
.flags
= priv
->staging_rxon
.flags
;
1037 rxon_assoc
.filter_flags
= priv
->staging_rxon
.filter_flags
;
1038 rxon_assoc
.ofdm_basic_rates
= priv
->staging_rxon
.ofdm_basic_rates
;
1039 rxon_assoc
.cck_basic_rates
= priv
->staging_rxon
.cck_basic_rates
;
1040 rxon_assoc
.reserved
= 0;
1042 rc
= iwl3945_send_cmd_sync(priv
, &cmd
);
1046 res
= (struct iwl3945_rx_packet
*)cmd
.meta
.u
.skb
->data
;
1047 if (res
->hdr
.flags
& IWL_CMD_FAILED_MSK
) {
1048 IWL_ERROR("Bad return from REPLY_RXON_ASSOC command\n");
1052 priv
->alloc_rxb_skb
--;
1053 dev_kfree_skb_any(cmd
.meta
.u
.skb
);
1059 * iwl3945_commit_rxon - commit staging_rxon to hardware
1061 * The RXON command in staging_rxon is committed to the hardware and
1062 * the active_rxon structure is updated with the new data. This
1063 * function correctly transitions out of the RXON_ASSOC_MSK state if
1064 * a HW tune is required based on the RXON structure changes.
1066 static int iwl3945_commit_rxon(struct iwl3945_priv
*priv
)
1068 /* cast away the const for active_rxon in this function */
1069 struct iwl3945_rxon_cmd
*active_rxon
= (void *)&priv
->active_rxon
;
1071 DECLARE_MAC_BUF(mac
);
1073 if (!iwl3945_is_alive(priv
))
1076 /* always get timestamp with Rx frame */
1077 priv
->staging_rxon
.flags
|= RXON_FLG_TSF2HOST_MSK
;
1079 /* select antenna */
1080 priv
->staging_rxon
.flags
&=
1081 ~(RXON_FLG_DIS_DIV_MSK
| RXON_FLG_ANT_SEL_MSK
);
1082 priv
->staging_rxon
.flags
|= iwl3945_get_antenna_flags(priv
);
1084 rc
= iwl3945_check_rxon_cmd(&priv
->staging_rxon
);
1086 IWL_ERROR("Invalid RXON configuration. Not committing.\n");
1090 /* If we don't need to send a full RXON, we can use
1091 * iwl3945_rxon_assoc_cmd which is used to reconfigure filter
1092 * and other flags for the current radio configuration. */
1093 if (!iwl3945_full_rxon_required(priv
)) {
1094 rc
= iwl3945_send_rxon_assoc(priv
);
1096 IWL_ERROR("Error setting RXON_ASSOC "
1097 "configuration (%d).\n", rc
);
1101 memcpy(active_rxon
, &priv
->staging_rxon
, sizeof(*active_rxon
));
1106 /* If we are currently associated and the new config requires
1107 * an RXON_ASSOC and the new config wants the associated mask enabled,
1108 * we must clear the associated from the active configuration
1109 * before we apply the new config */
1110 if (iwl3945_is_associated(priv
) &&
1111 (priv
->staging_rxon
.filter_flags
& RXON_FILTER_ASSOC_MSK
)) {
1112 IWL_DEBUG_INFO("Toggling associated bit on current RXON\n");
1113 active_rxon
->filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
1115 rc
= iwl3945_send_cmd_pdu(priv
, REPLY_RXON
,
1116 sizeof(struct iwl3945_rxon_cmd
),
1117 &priv
->active_rxon
);
1119 /* If the mask clearing failed then we set
1120 * active_rxon back to what it was previously */
1122 active_rxon
->filter_flags
|= RXON_FILTER_ASSOC_MSK
;
1123 IWL_ERROR("Error clearing ASSOC_MSK on current "
1124 "configuration (%d).\n", rc
);
1129 IWL_DEBUG_INFO("Sending RXON\n"
1130 "* with%s RXON_FILTER_ASSOC_MSK\n"
1133 ((priv
->staging_rxon
.filter_flags
&
1134 RXON_FILTER_ASSOC_MSK
) ? "" : "out"),
1135 le16_to_cpu(priv
->staging_rxon
.channel
),
1136 print_mac(mac
, priv
->staging_rxon
.bssid_addr
));
1138 /* Apply the new configuration */
1139 rc
= iwl3945_send_cmd_pdu(priv
, REPLY_RXON
,
1140 sizeof(struct iwl3945_rxon_cmd
), &priv
->staging_rxon
);
1142 IWL_ERROR("Error setting new configuration (%d).\n", rc
);
1146 memcpy(active_rxon
, &priv
->staging_rxon
, sizeof(*active_rxon
));
1148 iwl3945_clear_stations_table(priv
);
1150 /* If we issue a new RXON command which required a tune then we must
1151 * send a new TXPOWER command or we won't be able to Tx any frames */
1152 rc
= iwl3945_hw_reg_send_txpower(priv
);
1154 IWL_ERROR("Error setting Tx power (%d).\n", rc
);
1158 /* Add the broadcast address so we can send broadcast frames */
1159 if (iwl3945_add_station(priv
, iwl3945_broadcast_addr
, 0, 0) ==
1160 IWL_INVALID_STATION
) {
1161 IWL_ERROR("Error adding BROADCAST address for transmit.\n");
1165 /* If we have set the ASSOC_MSK and we are in BSS mode then
1166 * add the IWL_AP_ID to the station rate table */
1167 if (iwl3945_is_associated(priv
) &&
1168 (priv
->iw_mode
== IEEE80211_IF_TYPE_STA
))
1169 if (iwl3945_add_station(priv
, priv
->active_rxon
.bssid_addr
, 1, 0)
1170 == IWL_INVALID_STATION
) {
1171 IWL_ERROR("Error adding AP address for transmit.\n");
1175 /* Init the hardware's rate fallback order based on the band */
1176 rc
= iwl3945_init_hw_rate_table(priv
);
1178 IWL_ERROR("Error setting HW rate table: %02X\n", rc
);
1185 static int iwl3945_send_bt_config(struct iwl3945_priv
*priv
)
1187 struct iwl3945_bt_cmd bt_cmd
= {
1195 return iwl3945_send_cmd_pdu(priv
, REPLY_BT_CONFIG
,
1196 sizeof(struct iwl3945_bt_cmd
), &bt_cmd
);
1199 static int iwl3945_send_scan_abort(struct iwl3945_priv
*priv
)
1202 struct iwl3945_rx_packet
*res
;
1203 struct iwl3945_host_cmd cmd
= {
1204 .id
= REPLY_SCAN_ABORT_CMD
,
1205 .meta
.flags
= CMD_WANT_SKB
,
1208 /* If there isn't a scan actively going on in the hardware
1209 * then we are in between scan bands and not actually
1210 * actively scanning, so don't send the abort command */
1211 if (!test_bit(STATUS_SCAN_HW
, &priv
->status
)) {
1212 clear_bit(STATUS_SCAN_ABORTING
, &priv
->status
);
1216 rc
= iwl3945_send_cmd_sync(priv
, &cmd
);
1218 clear_bit(STATUS_SCAN_ABORTING
, &priv
->status
);
1222 res
= (struct iwl3945_rx_packet
*)cmd
.meta
.u
.skb
->data
;
1223 if (res
->u
.status
!= CAN_ABORT_STATUS
) {
1224 /* The scan abort will return 1 for success or
1225 * 2 for "failure". A failure condition can be
1226 * due to simply not being in an active scan which
1227 * can occur if we send the scan abort before we
1228 * the microcode has notified us that a scan is
1230 IWL_DEBUG_INFO("SCAN_ABORT returned %d.\n", res
->u
.status
);
1231 clear_bit(STATUS_SCAN_ABORTING
, &priv
->status
);
1232 clear_bit(STATUS_SCAN_HW
, &priv
->status
);
1235 dev_kfree_skb_any(cmd
.meta
.u
.skb
);
1240 static int iwl3945_card_state_sync_callback(struct iwl3945_priv
*priv
,
1241 struct iwl3945_cmd
*cmd
,
1242 struct sk_buff
*skb
)
1250 * Use: Sets the device's internal card state to enable, disable, or halt
1252 * When in the 'enable' state the card operates as normal.
1253 * When in the 'disable' state, the card enters into a low power mode.
1254 * When in the 'halt' state, the card is shut down and must be fully
1255 * restarted to come back on.
1257 static int iwl3945_send_card_state(struct iwl3945_priv
*priv
, u32 flags
, u8 meta_flag
)
1259 struct iwl3945_host_cmd cmd
= {
1260 .id
= REPLY_CARD_STATE_CMD
,
1263 .meta
.flags
= meta_flag
,
1266 if (meta_flag
& CMD_ASYNC
)
1267 cmd
.meta
.u
.callback
= iwl3945_card_state_sync_callback
;
1269 return iwl3945_send_cmd(priv
, &cmd
);
1272 static int iwl3945_add_sta_sync_callback(struct iwl3945_priv
*priv
,
1273 struct iwl3945_cmd
*cmd
, struct sk_buff
*skb
)
1275 struct iwl3945_rx_packet
*res
= NULL
;
1278 IWL_ERROR("Error: Response NULL in REPLY_ADD_STA.\n");
1282 res
= (struct iwl3945_rx_packet
*)skb
->data
;
1283 if (res
->hdr
.flags
& IWL_CMD_FAILED_MSK
) {
1284 IWL_ERROR("Bad return from REPLY_ADD_STA (0x%08X)\n",
1289 switch (res
->u
.add_sta
.status
) {
1290 case ADD_STA_SUCCESS_MSK
:
1296 /* We didn't cache the SKB; let the caller free it */
1300 int iwl3945_send_add_station(struct iwl3945_priv
*priv
,
1301 struct iwl3945_addsta_cmd
*sta
, u8 flags
)
1303 struct iwl3945_rx_packet
*res
= NULL
;
1305 struct iwl3945_host_cmd cmd
= {
1306 .id
= REPLY_ADD_STA
,
1307 .len
= sizeof(struct iwl3945_addsta_cmd
),
1308 .meta
.flags
= flags
,
1312 if (flags
& CMD_ASYNC
)
1313 cmd
.meta
.u
.callback
= iwl3945_add_sta_sync_callback
;
1315 cmd
.meta
.flags
|= CMD_WANT_SKB
;
1317 rc
= iwl3945_send_cmd(priv
, &cmd
);
1319 if (rc
|| (flags
& CMD_ASYNC
))
1322 res
= (struct iwl3945_rx_packet
*)cmd
.meta
.u
.skb
->data
;
1323 if (res
->hdr
.flags
& IWL_CMD_FAILED_MSK
) {
1324 IWL_ERROR("Bad return from REPLY_ADD_STA (0x%08X)\n",
1330 switch (res
->u
.add_sta
.status
) {
1331 case ADD_STA_SUCCESS_MSK
:
1332 IWL_DEBUG_INFO("REPLY_ADD_STA PASSED\n");
1336 IWL_WARNING("REPLY_ADD_STA failed\n");
1341 priv
->alloc_rxb_skb
--;
1342 dev_kfree_skb_any(cmd
.meta
.u
.skb
);
1347 static int iwl3945_update_sta_key_info(struct iwl3945_priv
*priv
,
1348 struct ieee80211_key_conf
*keyconf
,
1351 unsigned long flags
;
1352 __le16 key_flags
= 0;
1354 switch (keyconf
->alg
) {
1356 key_flags
|= STA_KEY_FLG_CCMP
;
1357 key_flags
|= cpu_to_le16(
1358 keyconf
->keyidx
<< STA_KEY_FLG_KEYID_POS
);
1359 key_flags
&= ~STA_KEY_FLG_INVALID
;
1366 spin_lock_irqsave(&priv
->sta_lock
, flags
);
1367 priv
->stations
[sta_id
].keyinfo
.alg
= keyconf
->alg
;
1368 priv
->stations
[sta_id
].keyinfo
.keylen
= keyconf
->keylen
;
1369 memcpy(priv
->stations
[sta_id
].keyinfo
.key
, keyconf
->key
,
1372 memcpy(priv
->stations
[sta_id
].sta
.key
.key
, keyconf
->key
,
1374 priv
->stations
[sta_id
].sta
.key
.key_flags
= key_flags
;
1375 priv
->stations
[sta_id
].sta
.sta
.modify_mask
= STA_MODIFY_KEY_MASK
;
1376 priv
->stations
[sta_id
].sta
.mode
= STA_CONTROL_MODIFY_MSK
;
1378 spin_unlock_irqrestore(&priv
->sta_lock
, flags
);
1380 IWL_DEBUG_INFO("hwcrypto: modify ucode station key info\n");
1381 iwl3945_send_add_station(priv
, &priv
->stations
[sta_id
].sta
, 0);
1385 static int iwl3945_clear_sta_key_info(struct iwl3945_priv
*priv
, u8 sta_id
)
1387 unsigned long flags
;
1389 spin_lock_irqsave(&priv
->sta_lock
, flags
);
1390 memset(&priv
->stations
[sta_id
].keyinfo
, 0, sizeof(struct iwl3945_hw_key
));
1391 memset(&priv
->stations
[sta_id
].sta
.key
, 0, sizeof(struct iwl3945_keyinfo
));
1392 priv
->stations
[sta_id
].sta
.key
.key_flags
= STA_KEY_FLG_NO_ENC
;
1393 priv
->stations
[sta_id
].sta
.sta
.modify_mask
= STA_MODIFY_KEY_MASK
;
1394 priv
->stations
[sta_id
].sta
.mode
= STA_CONTROL_MODIFY_MSK
;
1395 spin_unlock_irqrestore(&priv
->sta_lock
, flags
);
1397 IWL_DEBUG_INFO("hwcrypto: clear ucode station key info\n");
1398 iwl3945_send_add_station(priv
, &priv
->stations
[sta_id
].sta
, 0);
1402 static void iwl3945_clear_free_frames(struct iwl3945_priv
*priv
)
1404 struct list_head
*element
;
1406 IWL_DEBUG_INFO("%d frames on pre-allocated heap on clear.\n",
1407 priv
->frames_count
);
1409 while (!list_empty(&priv
->free_frames
)) {
1410 element
= priv
->free_frames
.next
;
1412 kfree(list_entry(element
, struct iwl3945_frame
, list
));
1413 priv
->frames_count
--;
1416 if (priv
->frames_count
) {
1417 IWL_WARNING("%d frames still in use. Did we lose one?\n",
1418 priv
->frames_count
);
1419 priv
->frames_count
= 0;
1423 static struct iwl3945_frame
*iwl3945_get_free_frame(struct iwl3945_priv
*priv
)
1425 struct iwl3945_frame
*frame
;
1426 struct list_head
*element
;
1427 if (list_empty(&priv
->free_frames
)) {
1428 frame
= kzalloc(sizeof(*frame
), GFP_KERNEL
);
1430 IWL_ERROR("Could not allocate frame!\n");
1434 priv
->frames_count
++;
1438 element
= priv
->free_frames
.next
;
1440 return list_entry(element
, struct iwl3945_frame
, list
);
1443 static void iwl3945_free_frame(struct iwl3945_priv
*priv
, struct iwl3945_frame
*frame
)
1445 memset(frame
, 0, sizeof(*frame
));
1446 list_add(&frame
->list
, &priv
->free_frames
);
1449 unsigned int iwl3945_fill_beacon_frame(struct iwl3945_priv
*priv
,
1450 struct ieee80211_hdr
*hdr
,
1451 const u8
*dest
, int left
)
1454 if (!iwl3945_is_associated(priv
) || !priv
->ibss_beacon
||
1455 ((priv
->iw_mode
!= IEEE80211_IF_TYPE_IBSS
) &&
1456 (priv
->iw_mode
!= IEEE80211_IF_TYPE_AP
)))
1459 if (priv
->ibss_beacon
->len
> left
)
1462 memcpy(hdr
, priv
->ibss_beacon
->data
, priv
->ibss_beacon
->len
);
1464 return priv
->ibss_beacon
->len
;
1467 static u8
iwl3945_rate_get_lowest_plcp(int rate_mask
)
1471 for (i
= IWL_RATE_1M_INDEX
; i
!= IWL_RATE_INVALID
;
1472 i
= iwl3945_rates
[i
].next_ieee
) {
1473 if (rate_mask
& (1 << i
))
1474 return iwl3945_rates
[i
].plcp
;
1477 return IWL_RATE_INVALID
;
1480 static int iwl3945_send_beacon_cmd(struct iwl3945_priv
*priv
)
1482 struct iwl3945_frame
*frame
;
1483 unsigned int frame_size
;
1487 frame
= iwl3945_get_free_frame(priv
);
1490 IWL_ERROR("Could not obtain free frame buffer for beacon "
1495 if (!(priv
->staging_rxon
.flags
& RXON_FLG_BAND_24G_MSK
)) {
1496 rate
= iwl3945_rate_get_lowest_plcp(priv
->active_rate_basic
&
1498 if (rate
== IWL_INVALID_RATE
)
1499 rate
= IWL_RATE_6M_PLCP
;
1501 rate
= iwl3945_rate_get_lowest_plcp(priv
->active_rate_basic
& 0xF);
1502 if (rate
== IWL_INVALID_RATE
)
1503 rate
= IWL_RATE_1M_PLCP
;
1506 frame_size
= iwl3945_hw_get_beacon_cmd(priv
, frame
, rate
);
1508 rc
= iwl3945_send_cmd_pdu(priv
, REPLY_TX_BEACON
, frame_size
,
1511 iwl3945_free_frame(priv
, frame
);
1516 /******************************************************************************
1518 * EEPROM related functions
1520 ******************************************************************************/
1522 static void get_eeprom_mac(struct iwl3945_priv
*priv
, u8
*mac
)
1524 memcpy(mac
, priv
->eeprom
.mac_address
, 6);
1528 * Clear the OWNER_MSK, to establish driver (instead of uCode running on
1529 * embedded controller) as EEPROM reader; each read is a series of pulses
1530 * to/from the EEPROM chip, not a single event, so even reads could conflict
1531 * if they weren't arbitrated by some ownership mechanism. Here, the driver
1532 * simply claims ownership, which should be safe when this function is called
1533 * (i.e. before loading uCode!).
1535 static inline int iwl3945_eeprom_acquire_semaphore(struct iwl3945_priv
*priv
)
1537 _iwl3945_clear_bit(priv
, CSR_EEPROM_GP
, CSR_EEPROM_GP_IF_OWNER_MSK
);
1542 * iwl3945_eeprom_init - read EEPROM contents
1544 * Load the EEPROM contents from adapter into priv->eeprom
1546 * NOTE: This routine uses the non-debug IO access functions.
1548 int iwl3945_eeprom_init(struct iwl3945_priv
*priv
)
1550 u16
*e
= (u16
*)&priv
->eeprom
;
1551 u32 gp
= iwl3945_read32(priv
, CSR_EEPROM_GP
);
1553 int sz
= sizeof(priv
->eeprom
);
1558 /* The EEPROM structure has several padding buffers within it
1559 * and when adding new EEPROM maps is subject to programmer errors
1560 * which may be very difficult to identify without explicitly
1561 * checking the resulting size of the eeprom map. */
1562 BUILD_BUG_ON(sizeof(priv
->eeprom
) != IWL_EEPROM_IMAGE_SIZE
);
1564 if ((gp
& CSR_EEPROM_GP_VALID_MSK
) == CSR_EEPROM_GP_BAD_SIGNATURE
) {
1565 IWL_ERROR("EEPROM not found, EEPROM_GP=0x%08x", gp
);
1569 /* Make sure driver (instead of uCode) is allowed to read EEPROM */
1570 rc
= iwl3945_eeprom_acquire_semaphore(priv
);
1572 IWL_ERROR("Failed to acquire EEPROM semaphore.\n");
1576 /* eeprom is an array of 16bit values */
1577 for (addr
= 0; addr
< sz
; addr
+= sizeof(u16
)) {
1578 _iwl3945_write32(priv
, CSR_EEPROM_REG
, addr
<< 1);
1579 _iwl3945_clear_bit(priv
, CSR_EEPROM_REG
, CSR_EEPROM_REG_BIT_CMD
);
1581 for (i
= 0; i
< IWL_EEPROM_ACCESS_TIMEOUT
;
1582 i
+= IWL_EEPROM_ACCESS_DELAY
) {
1583 r
= _iwl3945_read_direct32(priv
, CSR_EEPROM_REG
);
1584 if (r
& CSR_EEPROM_REG_READ_VALID_MSK
)
1586 udelay(IWL_EEPROM_ACCESS_DELAY
);
1589 if (!(r
& CSR_EEPROM_REG_READ_VALID_MSK
)) {
1590 IWL_ERROR("Time out reading EEPROM[%d]", addr
);
1593 e
[addr
/ 2] = le16_to_cpu((__force __le16
)(r
>> 16));
1599 static void iwl3945_unset_hw_setting(struct iwl3945_priv
*priv
)
1601 if (priv
->hw_setting
.shared_virt
)
1602 pci_free_consistent(priv
->pci_dev
,
1603 sizeof(struct iwl3945_shared
),
1604 priv
->hw_setting
.shared_virt
,
1605 priv
->hw_setting
.shared_phys
);
1609 * iwl3945_supported_rate_to_ie - fill in the supported rate in IE field
1611 * return : set the bit for each supported rate insert in ie
1613 static u16
iwl3945_supported_rate_to_ie(u8
*ie
, u16 supported_rate
,
1614 u16 basic_rate
, int *left
)
1616 u16 ret_rates
= 0, bit
;
1621 for (bit
= 1, i
= 0; i
< IWL_RATE_COUNT
; i
++, bit
<<= 1) {
1622 if (bit
& supported_rate
) {
1624 rates
[*cnt
] = iwl3945_rates
[i
].ieee
|
1625 ((bit
& basic_rate
) ? 0x80 : 0x00);
1629 (*cnt
>= IWL_SUPPORTED_RATES_IE_LEN
))
1638 * iwl3945_fill_probe_req - fill in all required fields and IE for probe request
1640 static u16
iwl3945_fill_probe_req(struct iwl3945_priv
*priv
,
1641 struct ieee80211_mgmt
*frame
,
1642 int left
, int is_direct
)
1646 u16 active_rates
, ret_rates
, cck_rates
;
1648 /* Make sure there is enough space for the probe request,
1649 * two mandatory IEs and the data */
1655 frame
->frame_control
= cpu_to_le16(IEEE80211_STYPE_PROBE_REQ
);
1656 memcpy(frame
->da
, iwl3945_broadcast_addr
, ETH_ALEN
);
1657 memcpy(frame
->sa
, priv
->mac_addr
, ETH_ALEN
);
1658 memcpy(frame
->bssid
, iwl3945_broadcast_addr
, ETH_ALEN
);
1659 frame
->seq_ctrl
= 0;
1661 /* fill in our indirect SSID IE */
1668 pos
= &(frame
->u
.probe_req
.variable
[0]);
1669 *pos
++ = WLAN_EID_SSID
;
1672 /* fill in our direct SSID IE... */
1675 left
-= 2 + priv
->essid_len
;
1678 /* ... fill it in... */
1679 *pos
++ = WLAN_EID_SSID
;
1680 *pos
++ = priv
->essid_len
;
1681 memcpy(pos
, priv
->essid
, priv
->essid_len
);
1682 pos
+= priv
->essid_len
;
1683 len
+= 2 + priv
->essid_len
;
1686 /* fill in supported rate */
1692 /* ... fill it in... */
1693 *pos
++ = WLAN_EID_SUPP_RATES
;
1696 priv
->active_rate
= priv
->rates_mask
;
1697 active_rates
= priv
->active_rate
;
1698 priv
->active_rate_basic
= priv
->rates_mask
& IWL_BASIC_RATES_MASK
;
1700 cck_rates
= IWL_CCK_RATES_MASK
& active_rates
;
1701 ret_rates
= iwl3945_supported_rate_to_ie(pos
, cck_rates
,
1702 priv
->active_rate_basic
, &left
);
1703 active_rates
&= ~ret_rates
;
1705 ret_rates
= iwl3945_supported_rate_to_ie(pos
, active_rates
,
1706 priv
->active_rate_basic
, &left
);
1707 active_rates
&= ~ret_rates
;
1711 if (active_rates
== 0)
1714 /* fill in supported extended rate */
1719 /* ... fill it in... */
1720 *pos
++ = WLAN_EID_EXT_SUPP_RATES
;
1722 iwl3945_supported_rate_to_ie(pos
, active_rates
,
1723 priv
->active_rate_basic
, &left
);
1734 static int iwl3945_send_qos_params_command(struct iwl3945_priv
*priv
,
1735 struct iwl3945_qosparam_cmd
*qos
)
1738 return iwl3945_send_cmd_pdu(priv
, REPLY_QOS_PARAM
,
1739 sizeof(struct iwl3945_qosparam_cmd
), qos
);
1742 static void iwl3945_reset_qos(struct iwl3945_priv
*priv
)
1748 unsigned long flags
;
1751 spin_lock_irqsave(&priv
->lock
, flags
);
1752 priv
->qos_data
.qos_active
= 0;
1754 if (priv
->iw_mode
== IEEE80211_IF_TYPE_IBSS
) {
1755 if (priv
->qos_data
.qos_enable
)
1756 priv
->qos_data
.qos_active
= 1;
1757 if (!(priv
->active_rate
& 0xfff0)) {
1761 } else if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) {
1762 if (priv
->qos_data
.qos_enable
)
1763 priv
->qos_data
.qos_active
= 1;
1764 } else if (!(priv
->staging_rxon
.flags
& RXON_FLG_SHORT_SLOT_MSK
)) {
1769 if (priv
->qos_data
.qos_active
)
1772 priv
->qos_data
.def_qos_parm
.ac
[0].cw_min
= cpu_to_le16(cw_min
);
1773 priv
->qos_data
.def_qos_parm
.ac
[0].cw_max
= cpu_to_le16(cw_max
);
1774 priv
->qos_data
.def_qos_parm
.ac
[0].aifsn
= aifs
;
1775 priv
->qos_data
.def_qos_parm
.ac
[0].edca_txop
= 0;
1776 priv
->qos_data
.def_qos_parm
.ac
[0].reserved1
= 0;
1778 if (priv
->qos_data
.qos_active
) {
1780 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_min
= cpu_to_le16(cw_min
);
1781 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_max
= cpu_to_le16(cw_max
);
1782 priv
->qos_data
.def_qos_parm
.ac
[i
].aifsn
= 7;
1783 priv
->qos_data
.def_qos_parm
.ac
[i
].edca_txop
= 0;
1784 priv
->qos_data
.def_qos_parm
.ac
[i
].reserved1
= 0;
1787 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_min
=
1788 cpu_to_le16((cw_min
+ 1) / 2 - 1);
1789 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_max
=
1790 cpu_to_le16(cw_max
);
1791 priv
->qos_data
.def_qos_parm
.ac
[i
].aifsn
= 2;
1793 priv
->qos_data
.def_qos_parm
.ac
[i
].edca_txop
=
1796 priv
->qos_data
.def_qos_parm
.ac
[i
].edca_txop
=
1798 priv
->qos_data
.def_qos_parm
.ac
[i
].reserved1
= 0;
1801 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_min
=
1802 cpu_to_le16((cw_min
+ 1) / 4 - 1);
1803 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_max
=
1804 cpu_to_le16((cw_max
+ 1) / 2 - 1);
1805 priv
->qos_data
.def_qos_parm
.ac
[i
].aifsn
= 2;
1806 priv
->qos_data
.def_qos_parm
.ac
[i
].reserved1
= 0;
1808 priv
->qos_data
.def_qos_parm
.ac
[i
].edca_txop
=
1811 priv
->qos_data
.def_qos_parm
.ac
[i
].edca_txop
=
1814 for (i
= 1; i
< 4; i
++) {
1815 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_min
=
1816 cpu_to_le16(cw_min
);
1817 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_max
=
1818 cpu_to_le16(cw_max
);
1819 priv
->qos_data
.def_qos_parm
.ac
[i
].aifsn
= aifs
;
1820 priv
->qos_data
.def_qos_parm
.ac
[i
].edca_txop
= 0;
1821 priv
->qos_data
.def_qos_parm
.ac
[i
].reserved1
= 0;
1824 IWL_DEBUG_QOS("set QoS to default \n");
1826 spin_unlock_irqrestore(&priv
->lock
, flags
);
1829 static void iwl3945_activate_qos(struct iwl3945_priv
*priv
, u8 force
)
1831 unsigned long flags
;
1833 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
1836 if (!priv
->qos_data
.qos_enable
)
1839 spin_lock_irqsave(&priv
->lock
, flags
);
1840 priv
->qos_data
.def_qos_parm
.qos_flags
= 0;
1842 if (priv
->qos_data
.qos_cap
.q_AP
.queue_request
&&
1843 !priv
->qos_data
.qos_cap
.q_AP
.txop_request
)
1844 priv
->qos_data
.def_qos_parm
.qos_flags
|=
1845 QOS_PARAM_FLG_TXOP_TYPE_MSK
;
1847 if (priv
->qos_data
.qos_active
)
1848 priv
->qos_data
.def_qos_parm
.qos_flags
|=
1849 QOS_PARAM_FLG_UPDATE_EDCA_MSK
;
1851 spin_unlock_irqrestore(&priv
->lock
, flags
);
1853 if (force
|| iwl3945_is_associated(priv
)) {
1854 IWL_DEBUG_QOS("send QoS cmd with Qos active %d \n",
1855 priv
->qos_data
.qos_active
);
1857 iwl3945_send_qos_params_command(priv
,
1858 &(priv
->qos_data
.def_qos_parm
));
1863 * Power management (not Tx power!) functions
1865 #define MSEC_TO_USEC 1024
1867 #define NOSLP __constant_cpu_to_le32(0)
1868 #define SLP IWL_POWER_DRIVER_ALLOW_SLEEP_MSK
1869 #define SLP_TIMEOUT(T) __constant_cpu_to_le32((T) * MSEC_TO_USEC)
1870 #define SLP_VEC(X0, X1, X2, X3, X4) {__constant_cpu_to_le32(X0), \
1871 __constant_cpu_to_le32(X1), \
1872 __constant_cpu_to_le32(X2), \
1873 __constant_cpu_to_le32(X3), \
1874 __constant_cpu_to_le32(X4)}
1877 /* default power management (not Tx power) table values */
1879 static struct iwl3945_power_vec_entry range_0
[IWL_POWER_AC
] = {
1880 {{NOSLP
, SLP_TIMEOUT(0), SLP_TIMEOUT(0), SLP_VEC(0, 0, 0, 0, 0)}, 0},
1881 {{SLP
, SLP_TIMEOUT(200), SLP_TIMEOUT(500), SLP_VEC(1, 2, 3, 4, 4)}, 0},
1882 {{SLP
, SLP_TIMEOUT(200), SLP_TIMEOUT(300), SLP_VEC(2, 4, 6, 7, 7)}, 0},
1883 {{SLP
, SLP_TIMEOUT(50), SLP_TIMEOUT(100), SLP_VEC(2, 6, 9, 9, 10)}, 0},
1884 {{SLP
, SLP_TIMEOUT(50), SLP_TIMEOUT(25), SLP_VEC(2, 7, 9, 9, 10)}, 1},
1885 {{SLP
, SLP_TIMEOUT(25), SLP_TIMEOUT(25), SLP_VEC(4, 7, 10, 10, 10)}, 1}
1889 static struct iwl3945_power_vec_entry range_1
[IWL_POWER_AC
] = {
1890 {{NOSLP
, SLP_TIMEOUT(0), SLP_TIMEOUT(0), SLP_VEC(0, 0, 0, 0, 0)}, 0},
1891 {{SLP
, SLP_TIMEOUT(200), SLP_TIMEOUT(500),
1892 SLP_VEC(1, 2, 3, 4, 0xFF)}, 0},
1893 {{SLP
, SLP_TIMEOUT(200), SLP_TIMEOUT(300),
1894 SLP_VEC(2, 4, 6, 7, 0xFF)}, 0},
1895 {{SLP
, SLP_TIMEOUT(50), SLP_TIMEOUT(100),
1896 SLP_VEC(2, 6, 9, 9, 0xFF)}, 0},
1897 {{SLP
, SLP_TIMEOUT(50), SLP_TIMEOUT(25), SLP_VEC(2, 7, 9, 9, 0xFF)}, 0},
1898 {{SLP
, SLP_TIMEOUT(25), SLP_TIMEOUT(25),
1899 SLP_VEC(4, 7, 10, 10, 0xFF)}, 0}
1902 int iwl3945_power_init_handle(struct iwl3945_priv
*priv
)
1905 struct iwl3945_power_mgr
*pow_data
;
1906 int size
= sizeof(struct iwl3945_power_vec_entry
) * IWL_POWER_AC
;
1909 IWL_DEBUG_POWER("Initialize power \n");
1911 pow_data
= &(priv
->power_data
);
1913 memset(pow_data
, 0, sizeof(*pow_data
));
1915 pow_data
->active_index
= IWL_POWER_RANGE_0
;
1916 pow_data
->dtim_val
= 0xffff;
1918 memcpy(&pow_data
->pwr_range_0
[0], &range_0
[0], size
);
1919 memcpy(&pow_data
->pwr_range_1
[0], &range_1
[0], size
);
1921 rc
= pci_read_config_word(priv
->pci_dev
, PCI_LINK_CTRL
, &pci_pm
);
1925 struct iwl3945_powertable_cmd
*cmd
;
1927 IWL_DEBUG_POWER("adjust power command flags\n");
1929 for (i
= 0; i
< IWL_POWER_AC
; i
++) {
1930 cmd
= &pow_data
->pwr_range_0
[i
].cmd
;
1933 cmd
->flags
&= ~IWL_POWER_PCI_PM_MSK
;
1935 cmd
->flags
|= IWL_POWER_PCI_PM_MSK
;
1941 static int iwl3945_update_power_cmd(struct iwl3945_priv
*priv
,
1942 struct iwl3945_powertable_cmd
*cmd
, u32 mode
)
1947 struct iwl3945_power_vec_entry
*range
;
1949 struct iwl3945_power_mgr
*pow_data
;
1951 if (mode
> IWL_POWER_INDEX_5
) {
1952 IWL_DEBUG_POWER("Error invalid power mode \n");
1955 pow_data
= &(priv
->power_data
);
1957 if (pow_data
->active_index
== IWL_POWER_RANGE_0
)
1958 range
= &pow_data
->pwr_range_0
[0];
1960 range
= &pow_data
->pwr_range_1
[1];
1962 memcpy(cmd
, &range
[mode
].cmd
, sizeof(struct iwl3945_powertable_cmd
));
1964 #ifdef IWL_MAC80211_DISABLE
1965 if (priv
->assoc_network
!= NULL
) {
1966 unsigned long flags
;
1968 period
= priv
->assoc_network
->tim
.tim_period
;
1970 #endif /*IWL_MAC80211_DISABLE */
1971 skip
= range
[mode
].no_dtim
;
1980 cmd
->flags
&= ~IWL_POWER_SLEEP_OVER_DTIM_MSK
;
1982 __le32 slp_itrvl
= cmd
->sleep_interval
[IWL_POWER_VEC_SIZE
- 1];
1983 max_sleep
= (le32_to_cpu(slp_itrvl
) / period
) * period
;
1984 cmd
->flags
|= IWL_POWER_SLEEP_OVER_DTIM_MSK
;
1987 for (i
= 0; i
< IWL_POWER_VEC_SIZE
; i
++) {
1988 if (le32_to_cpu(cmd
->sleep_interval
[i
]) > max_sleep
)
1989 cmd
->sleep_interval
[i
] = cpu_to_le32(max_sleep
);
1992 IWL_DEBUG_POWER("Flags value = 0x%08X\n", cmd
->flags
);
1993 IWL_DEBUG_POWER("Tx timeout = %u\n", le32_to_cpu(cmd
->tx_data_timeout
));
1994 IWL_DEBUG_POWER("Rx timeout = %u\n", le32_to_cpu(cmd
->rx_data_timeout
));
1995 IWL_DEBUG_POWER("Sleep interval vector = { %d , %d , %d , %d , %d }\n",
1996 le32_to_cpu(cmd
->sleep_interval
[0]),
1997 le32_to_cpu(cmd
->sleep_interval
[1]),
1998 le32_to_cpu(cmd
->sleep_interval
[2]),
1999 le32_to_cpu(cmd
->sleep_interval
[3]),
2000 le32_to_cpu(cmd
->sleep_interval
[4]));
2005 static int iwl3945_send_power_mode(struct iwl3945_priv
*priv
, u32 mode
)
2007 u32
uninitialized_var(final_mode
);
2009 struct iwl3945_powertable_cmd cmd
;
2011 /* If on battery, set to 3,
2012 * if plugged into AC power, set to CAM ("continuously aware mode"),
2013 * else user level */
2015 case IWL_POWER_BATTERY
:
2016 final_mode
= IWL_POWER_INDEX_3
;
2019 final_mode
= IWL_POWER_MODE_CAM
;
2026 iwl3945_update_power_cmd(priv
, &cmd
, final_mode
);
2028 rc
= iwl3945_send_cmd_pdu(priv
, POWER_TABLE_CMD
, sizeof(cmd
), &cmd
);
2030 if (final_mode
== IWL_POWER_MODE_CAM
)
2031 clear_bit(STATUS_POWER_PMI
, &priv
->status
);
2033 set_bit(STATUS_POWER_PMI
, &priv
->status
);
2038 int iwl3945_is_network_packet(struct iwl3945_priv
*priv
, struct ieee80211_hdr
*header
)
2040 /* Filter incoming packets to determine if they are targeted toward
2041 * this network, discarding packets coming from ourselves */
2042 switch (priv
->iw_mode
) {
2043 case IEEE80211_IF_TYPE_IBSS
: /* Header: Dest. | Source | BSSID */
2044 /* packets from our adapter are dropped (echo) */
2045 if (!compare_ether_addr(header
->addr2
, priv
->mac_addr
))
2047 /* {broad,multi}cast packets to our IBSS go through */
2048 if (is_multicast_ether_addr(header
->addr1
))
2049 return !compare_ether_addr(header
->addr3
, priv
->bssid
);
2050 /* packets to our adapter go through */
2051 return !compare_ether_addr(header
->addr1
, priv
->mac_addr
);
2052 case IEEE80211_IF_TYPE_STA
: /* Header: Dest. | AP{BSSID} | Source */
2053 /* packets from our adapter are dropped (echo) */
2054 if (!compare_ether_addr(header
->addr3
, priv
->mac_addr
))
2056 /* {broad,multi}cast packets to our BSS go through */
2057 if (is_multicast_ether_addr(header
->addr1
))
2058 return !compare_ether_addr(header
->addr2
, priv
->bssid
);
2059 /* packets to our adapter go through */
2060 return !compare_ether_addr(header
->addr1
, priv
->mac_addr
);
2069 * iwl3945_scan_cancel - Cancel any currently executing HW scan
2071 * NOTE: priv->mutex is not required before calling this function
2073 static int iwl3945_scan_cancel(struct iwl3945_priv
*priv
)
2075 if (!test_bit(STATUS_SCAN_HW
, &priv
->status
)) {
2076 clear_bit(STATUS_SCANNING
, &priv
->status
);
2080 if (test_bit(STATUS_SCANNING
, &priv
->status
)) {
2081 if (!test_bit(STATUS_SCAN_ABORTING
, &priv
->status
)) {
2082 IWL_DEBUG_SCAN("Queuing scan abort.\n");
2083 set_bit(STATUS_SCAN_ABORTING
, &priv
->status
);
2084 queue_work(priv
->workqueue
, &priv
->abort_scan
);
2087 IWL_DEBUG_SCAN("Scan abort already in progress.\n");
2089 return test_bit(STATUS_SCANNING
, &priv
->status
);
2096 * iwl3945_scan_cancel_timeout - Cancel any currently executing HW scan
2097 * @ms: amount of time to wait (in milliseconds) for scan to abort
2099 * NOTE: priv->mutex must be held before calling this function
2101 static int iwl3945_scan_cancel_timeout(struct iwl3945_priv
*priv
, unsigned long ms
)
2103 unsigned long now
= jiffies
;
2106 ret
= iwl3945_scan_cancel(priv
);
2108 mutex_unlock(&priv
->mutex
);
2109 while (!time_after(jiffies
, now
+ msecs_to_jiffies(ms
)) &&
2110 test_bit(STATUS_SCANNING
, &priv
->status
))
2112 mutex_lock(&priv
->mutex
);
2114 return test_bit(STATUS_SCANNING
, &priv
->status
);
2120 static void iwl3945_sequence_reset(struct iwl3945_priv
*priv
)
2122 /* Reset ieee stats */
2124 /* We don't reset the net_device_stats (ieee->stats) on
2127 priv
->last_seq_num
= -1;
2128 priv
->last_frag_num
= -1;
2129 priv
->last_packet_time
= 0;
2131 iwl3945_scan_cancel(priv
);
2134 #define MAX_UCODE_BEACON_INTERVAL 1024
2135 #define INTEL_CONN_LISTEN_INTERVAL __constant_cpu_to_le16(0xA)
2137 static __le16
iwl3945_adjust_beacon_interval(u16 beacon_val
)
2140 u16 beacon_factor
= 0;
2143 (beacon_val
+ MAX_UCODE_BEACON_INTERVAL
)
2144 / MAX_UCODE_BEACON_INTERVAL
;
2145 new_val
= beacon_val
/ beacon_factor
;
2147 return cpu_to_le16(new_val
);
2150 static void iwl3945_setup_rxon_timing(struct iwl3945_priv
*priv
)
2152 u64 interval_tm_unit
;
2154 unsigned long flags
;
2155 struct ieee80211_conf
*conf
= NULL
;
2158 conf
= ieee80211_get_hw_conf(priv
->hw
);
2160 spin_lock_irqsave(&priv
->lock
, flags
);
2161 priv
->rxon_timing
.timestamp
.dw
[1] = cpu_to_le32(priv
->timestamp1
);
2162 priv
->rxon_timing
.timestamp
.dw
[0] = cpu_to_le32(priv
->timestamp0
);
2164 priv
->rxon_timing
.listen_interval
= INTEL_CONN_LISTEN_INTERVAL
;
2166 tsf
= priv
->timestamp1
;
2167 tsf
= ((tsf
<< 32) | priv
->timestamp0
);
2169 beacon_int
= priv
->beacon_int
;
2170 spin_unlock_irqrestore(&priv
->lock
, flags
);
2172 if (priv
->iw_mode
== IEEE80211_IF_TYPE_STA
) {
2173 if (beacon_int
== 0) {
2174 priv
->rxon_timing
.beacon_interval
= cpu_to_le16(100);
2175 priv
->rxon_timing
.beacon_init_val
= cpu_to_le32(102400);
2177 priv
->rxon_timing
.beacon_interval
=
2178 cpu_to_le16(beacon_int
);
2179 priv
->rxon_timing
.beacon_interval
=
2180 iwl3945_adjust_beacon_interval(
2181 le16_to_cpu(priv
->rxon_timing
.beacon_interval
));
2184 priv
->rxon_timing
.atim_window
= 0;
2186 priv
->rxon_timing
.beacon_interval
=
2187 iwl3945_adjust_beacon_interval(conf
->beacon_int
);
2188 /* TODO: we need to get atim_window from upper stack
2189 * for now we set to 0 */
2190 priv
->rxon_timing
.atim_window
= 0;
2194 (le16_to_cpu(priv
->rxon_timing
.beacon_interval
) * 1024);
2195 result
= do_div(tsf
, interval_tm_unit
);
2196 priv
->rxon_timing
.beacon_init_val
=
2197 cpu_to_le32((u32
) ((u64
) interval_tm_unit
- result
));
2200 ("beacon interval %d beacon timer %d beacon tim %d\n",
2201 le16_to_cpu(priv
->rxon_timing
.beacon_interval
),
2202 le32_to_cpu(priv
->rxon_timing
.beacon_init_val
),
2203 le16_to_cpu(priv
->rxon_timing
.atim_window
));
2206 static int iwl3945_scan_initiate(struct iwl3945_priv
*priv
)
2208 if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) {
2209 IWL_ERROR("APs don't scan.\n");
2213 if (!iwl3945_is_ready_rf(priv
)) {
2214 IWL_DEBUG_SCAN("Aborting scan due to not ready.\n");
2218 if (test_bit(STATUS_SCANNING
, &priv
->status
)) {
2219 IWL_DEBUG_SCAN("Scan already in progress.\n");
2223 if (test_bit(STATUS_SCAN_ABORTING
, &priv
->status
)) {
2224 IWL_DEBUG_SCAN("Scan request while abort pending. "
2229 IWL_DEBUG_INFO("Starting scan...\n");
2230 priv
->scan_bands
= 2;
2231 set_bit(STATUS_SCANNING
, &priv
->status
);
2232 priv
->scan_start
= jiffies
;
2233 priv
->scan_pass_start
= priv
->scan_start
;
2235 queue_work(priv
->workqueue
, &priv
->request_scan
);
2240 static int iwl3945_set_rxon_hwcrypto(struct iwl3945_priv
*priv
, int hw_decrypt
)
2242 struct iwl3945_rxon_cmd
*rxon
= &priv
->staging_rxon
;
2245 rxon
->filter_flags
&= ~RXON_FILTER_DIS_DECRYPT_MSK
;
2247 rxon
->filter_flags
|= RXON_FILTER_DIS_DECRYPT_MSK
;
2252 static void iwl3945_set_flags_for_phymode(struct iwl3945_priv
*priv
,
2253 enum ieee80211_band band
)
2255 if (band
== IEEE80211_BAND_5GHZ
) {
2256 priv
->staging_rxon
.flags
&=
2257 ~(RXON_FLG_BAND_24G_MSK
| RXON_FLG_AUTO_DETECT_MSK
2258 | RXON_FLG_CCK_MSK
);
2259 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_SLOT_MSK
;
2261 /* Copied from iwl3945_bg_post_associate() */
2262 if (priv
->assoc_capability
& WLAN_CAPABILITY_SHORT_SLOT_TIME
)
2263 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_SLOT_MSK
;
2265 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_SLOT_MSK
;
2267 if (priv
->iw_mode
== IEEE80211_IF_TYPE_IBSS
)
2268 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_SLOT_MSK
;
2270 priv
->staging_rxon
.flags
|= RXON_FLG_BAND_24G_MSK
;
2271 priv
->staging_rxon
.flags
|= RXON_FLG_AUTO_DETECT_MSK
;
2272 priv
->staging_rxon
.flags
&= ~RXON_FLG_CCK_MSK
;
2277 * initialize rxon structure with default values from eeprom
2279 static void iwl3945_connection_init_rx_config(struct iwl3945_priv
*priv
)
2281 const struct iwl3945_channel_info
*ch_info
;
2283 memset(&priv
->staging_rxon
, 0, sizeof(priv
->staging_rxon
));
2285 switch (priv
->iw_mode
) {
2286 case IEEE80211_IF_TYPE_AP
:
2287 priv
->staging_rxon
.dev_type
= RXON_DEV_TYPE_AP
;
2290 case IEEE80211_IF_TYPE_STA
:
2291 priv
->staging_rxon
.dev_type
= RXON_DEV_TYPE_ESS
;
2292 priv
->staging_rxon
.filter_flags
= RXON_FILTER_ACCEPT_GRP_MSK
;
2295 case IEEE80211_IF_TYPE_IBSS
:
2296 priv
->staging_rxon
.dev_type
= RXON_DEV_TYPE_IBSS
;
2297 priv
->staging_rxon
.flags
= RXON_FLG_SHORT_PREAMBLE_MSK
;
2298 priv
->staging_rxon
.filter_flags
= RXON_FILTER_BCON_AWARE_MSK
|
2299 RXON_FILTER_ACCEPT_GRP_MSK
;
2302 case IEEE80211_IF_TYPE_MNTR
:
2303 priv
->staging_rxon
.dev_type
= RXON_DEV_TYPE_SNIFFER
;
2304 priv
->staging_rxon
.filter_flags
= RXON_FILTER_PROMISC_MSK
|
2305 RXON_FILTER_CTL2HOST_MSK
| RXON_FILTER_ACCEPT_GRP_MSK
;
2308 IWL_ERROR("Unsupported interface type %d\n", priv
->iw_mode
);
2313 /* TODO: Figure out when short_preamble would be set and cache from
2315 if (!hw_to_local(priv
->hw
)->short_preamble
)
2316 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_PREAMBLE_MSK
;
2318 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_PREAMBLE_MSK
;
2321 ch_info
= iwl3945_get_channel_info(priv
, priv
->band
,
2322 le16_to_cpu(priv
->staging_rxon
.channel
));
2325 ch_info
= &priv
->channel_info
[0];
2328 * in some case A channels are all non IBSS
2329 * in this case force B/G channel
2331 if ((priv
->iw_mode
== IEEE80211_IF_TYPE_IBSS
) &&
2332 !(is_channel_ibss(ch_info
)))
2333 ch_info
= &priv
->channel_info
[0];
2335 priv
->staging_rxon
.channel
= cpu_to_le16(ch_info
->channel
);
2336 if (is_channel_a_band(ch_info
))
2337 priv
->band
= IEEE80211_BAND_5GHZ
;
2339 priv
->band
= IEEE80211_BAND_2GHZ
;
2341 iwl3945_set_flags_for_phymode(priv
, priv
->band
);
2343 priv
->staging_rxon
.ofdm_basic_rates
=
2344 (IWL_OFDM_RATES_MASK
>> IWL_FIRST_OFDM_RATE
) & 0xFF;
2345 priv
->staging_rxon
.cck_basic_rates
=
2346 (IWL_CCK_RATES_MASK
>> IWL_FIRST_CCK_RATE
) & 0xF;
2349 static int iwl3945_set_mode(struct iwl3945_priv
*priv
, int mode
)
2351 if (mode
== IEEE80211_IF_TYPE_IBSS
) {
2352 const struct iwl3945_channel_info
*ch_info
;
2354 ch_info
= iwl3945_get_channel_info(priv
,
2356 le16_to_cpu(priv
->staging_rxon
.channel
));
2358 if (!ch_info
|| !is_channel_ibss(ch_info
)) {
2359 IWL_ERROR("channel %d not IBSS channel\n",
2360 le16_to_cpu(priv
->staging_rxon
.channel
));
2365 priv
->iw_mode
= mode
;
2367 iwl3945_connection_init_rx_config(priv
);
2368 memcpy(priv
->staging_rxon
.node_addr
, priv
->mac_addr
, ETH_ALEN
);
2370 iwl3945_clear_stations_table(priv
);
2372 /* dont commit rxon if rf-kill is on*/
2373 if (!iwl3945_is_ready_rf(priv
))
2376 cancel_delayed_work(&priv
->scan_check
);
2377 if (iwl3945_scan_cancel_timeout(priv
, 100)) {
2378 IWL_WARNING("Aborted scan still in progress after 100ms\n");
2379 IWL_DEBUG_MAC80211("leaving - scan abort failed.\n");
2383 iwl3945_commit_rxon(priv
);
2388 static void iwl3945_build_tx_cmd_hwcrypto(struct iwl3945_priv
*priv
,
2389 struct ieee80211_tx_control
*ctl
,
2390 struct iwl3945_cmd
*cmd
,
2391 struct sk_buff
*skb_frag
,
2394 struct iwl3945_hw_key
*keyinfo
=
2395 &priv
->stations
[ctl
->hw_key
->hw_key_idx
].keyinfo
;
2397 switch (keyinfo
->alg
) {
2399 cmd
->cmd
.tx
.sec_ctl
= TX_CMD_SEC_CCM
;
2400 memcpy(cmd
->cmd
.tx
.key
, keyinfo
->key
, keyinfo
->keylen
);
2401 IWL_DEBUG_TX("tx_cmd with aes hwcrypto\n");
2406 cmd
->cmd
.tx
.sec_ctl
= TX_CMD_SEC_TKIP
;
2409 memcpy(cmd
->cmd
.tx
.tkip_mic
.byte
, skb_frag
->tail
- 8,
2412 memset(cmd
->cmd
.tx
.tkip_mic
.byte
, 0, 8);
2417 cmd
->cmd
.tx
.sec_ctl
= TX_CMD_SEC_WEP
|
2418 (ctl
->hw_key
->hw_key_idx
& TX_CMD_SEC_MSK
) << TX_CMD_SEC_SHIFT
;
2420 if (keyinfo
->keylen
== 13)
2421 cmd
->cmd
.tx
.sec_ctl
|= TX_CMD_SEC_KEY128
;
2423 memcpy(&cmd
->cmd
.tx
.key
[3], keyinfo
->key
, keyinfo
->keylen
);
2425 IWL_DEBUG_TX("Configuring packet for WEP encryption "
2426 "with key %d\n", ctl
->hw_key
->hw_key_idx
);
2430 printk(KERN_ERR
"Unknown encode alg %d\n", keyinfo
->alg
);
2436 * handle build REPLY_TX command notification.
2438 static void iwl3945_build_tx_cmd_basic(struct iwl3945_priv
*priv
,
2439 struct iwl3945_cmd
*cmd
,
2440 struct ieee80211_tx_control
*ctrl
,
2441 struct ieee80211_hdr
*hdr
,
2442 int is_unicast
, u8 std_id
)
2445 u16 fc
= le16_to_cpu(hdr
->frame_control
);
2446 __le32 tx_flags
= cmd
->cmd
.tx
.tx_flags
;
2448 cmd
->cmd
.tx
.stop_time
.life_time
= TX_CMD_LIFE_TIME_INFINITE
;
2449 if (!(ctrl
->flags
& IEEE80211_TXCTL_NO_ACK
)) {
2450 tx_flags
|= TX_CMD_FLG_ACK_MSK
;
2451 if ((fc
& IEEE80211_FCTL_FTYPE
) == IEEE80211_FTYPE_MGMT
)
2452 tx_flags
|= TX_CMD_FLG_SEQ_CTL_MSK
;
2453 if (ieee80211_is_probe_response(fc
) &&
2454 !(le16_to_cpu(hdr
->seq_ctrl
) & 0xf))
2455 tx_flags
|= TX_CMD_FLG_TSF_MSK
;
2457 tx_flags
&= (~TX_CMD_FLG_ACK_MSK
);
2458 tx_flags
|= TX_CMD_FLG_SEQ_CTL_MSK
;
2461 cmd
->cmd
.tx
.sta_id
= std_id
;
2462 if (ieee80211_get_morefrag(hdr
))
2463 tx_flags
|= TX_CMD_FLG_MORE_FRAG_MSK
;
2465 qc
= ieee80211_get_qos_ctrl(hdr
);
2467 cmd
->cmd
.tx
.tid_tspec
= (u8
) (le16_to_cpu(*qc
) & 0xf);
2468 tx_flags
&= ~TX_CMD_FLG_SEQ_CTL_MSK
;
2470 tx_flags
|= TX_CMD_FLG_SEQ_CTL_MSK
;
2472 if (ctrl
->flags
& IEEE80211_TXCTL_USE_RTS_CTS
) {
2473 tx_flags
|= TX_CMD_FLG_RTS_MSK
;
2474 tx_flags
&= ~TX_CMD_FLG_CTS_MSK
;
2475 } else if (ctrl
->flags
& IEEE80211_TXCTL_USE_CTS_PROTECT
) {
2476 tx_flags
&= ~TX_CMD_FLG_RTS_MSK
;
2477 tx_flags
|= TX_CMD_FLG_CTS_MSK
;
2480 if ((tx_flags
& TX_CMD_FLG_RTS_MSK
) || (tx_flags
& TX_CMD_FLG_CTS_MSK
))
2481 tx_flags
|= TX_CMD_FLG_FULL_TXOP_PROT_MSK
;
2483 tx_flags
&= ~(TX_CMD_FLG_ANT_SEL_MSK
);
2484 if ((fc
& IEEE80211_FCTL_FTYPE
) == IEEE80211_FTYPE_MGMT
) {
2485 if ((fc
& IEEE80211_FCTL_STYPE
) == IEEE80211_STYPE_ASSOC_REQ
||
2486 (fc
& IEEE80211_FCTL_STYPE
) == IEEE80211_STYPE_REASSOC_REQ
)
2487 cmd
->cmd
.tx
.timeout
.pm_frame_timeout
= cpu_to_le16(3);
2489 cmd
->cmd
.tx
.timeout
.pm_frame_timeout
= cpu_to_le16(2);
2491 cmd
->cmd
.tx
.timeout
.pm_frame_timeout
= 0;
2492 #ifdef CONFIG_IWL3945_LEDS
2493 priv
->rxtxpackets
+= le16_to_cpu(cmd
->cmd
.tx
.len
);
2497 cmd
->cmd
.tx
.driver_txop
= 0;
2498 cmd
->cmd
.tx
.tx_flags
= tx_flags
;
2499 cmd
->cmd
.tx
.next_frame_len
= 0;
2503 * iwl3945_get_sta_id - Find station's index within station table
2505 static int iwl3945_get_sta_id(struct iwl3945_priv
*priv
, struct ieee80211_hdr
*hdr
)
2508 u16 fc
= le16_to_cpu(hdr
->frame_control
);
2510 /* If this frame is broadcast or management, use broadcast station id */
2511 if (((fc
& IEEE80211_FCTL_FTYPE
) != IEEE80211_FTYPE_DATA
) ||
2512 is_multicast_ether_addr(hdr
->addr1
))
2513 return priv
->hw_setting
.bcast_sta_id
;
2515 switch (priv
->iw_mode
) {
2517 /* If we are a client station in a BSS network, use the special
2518 * AP station entry (that's the only station we communicate with) */
2519 case IEEE80211_IF_TYPE_STA
:
2522 /* If we are an AP, then find the station, or use BCAST */
2523 case IEEE80211_IF_TYPE_AP
:
2524 sta_id
= iwl3945_hw_find_station(priv
, hdr
->addr1
);
2525 if (sta_id
!= IWL_INVALID_STATION
)
2527 return priv
->hw_setting
.bcast_sta_id
;
2529 /* If this frame is going out to an IBSS network, find the station,
2530 * or create a new station table entry */
2531 case IEEE80211_IF_TYPE_IBSS
: {
2532 DECLARE_MAC_BUF(mac
);
2534 /* Create new station table entry */
2535 sta_id
= iwl3945_hw_find_station(priv
, hdr
->addr1
);
2536 if (sta_id
!= IWL_INVALID_STATION
)
2539 sta_id
= iwl3945_add_station(priv
, hdr
->addr1
, 0, CMD_ASYNC
);
2541 if (sta_id
!= IWL_INVALID_STATION
)
2544 IWL_DEBUG_DROP("Station %s not in station map. "
2545 "Defaulting to broadcast...\n",
2546 print_mac(mac
, hdr
->addr1
));
2547 iwl3945_print_hex_dump(IWL_DL_DROP
, (u8
*) hdr
, sizeof(*hdr
));
2548 return priv
->hw_setting
.bcast_sta_id
;
2551 IWL_WARNING("Unknown mode of operation: %d", priv
->iw_mode
);
2552 return priv
->hw_setting
.bcast_sta_id
;
2557 * start REPLY_TX command process
2559 static int iwl3945_tx_skb(struct iwl3945_priv
*priv
,
2560 struct sk_buff
*skb
, struct ieee80211_tx_control
*ctl
)
2562 struct ieee80211_hdr
*hdr
= (struct ieee80211_hdr
*)skb
->data
;
2563 struct iwl3945_tfd_frame
*tfd
;
2565 int txq_id
= ctl
->queue
;
2566 struct iwl3945_tx_queue
*txq
= NULL
;
2567 struct iwl3945_queue
*q
= NULL
;
2568 dma_addr_t phys_addr
;
2569 dma_addr_t txcmd_phys
;
2570 struct iwl3945_cmd
*out_cmd
= NULL
;
2571 u16 len
, idx
, len_org
;
2572 u8 id
, hdr_len
, unicast
;
2577 u8 wait_write_ptr
= 0;
2578 unsigned long flags
;
2581 spin_lock_irqsave(&priv
->lock
, flags
);
2582 if (iwl3945_is_rfkill(priv
)) {
2583 IWL_DEBUG_DROP("Dropping - RF KILL\n");
2588 IWL_DEBUG_DROP("Dropping - !priv->vif\n");
2592 if ((ctl
->tx_rate
->hw_value
& 0xFF) == IWL_INVALID_RATE
) {
2593 IWL_ERROR("ERROR: No TX rate available.\n");
2597 unicast
= !is_multicast_ether_addr(hdr
->addr1
);
2600 fc
= le16_to_cpu(hdr
->frame_control
);
2602 #ifdef CONFIG_IWL3945_DEBUG
2603 if (ieee80211_is_auth(fc
))
2604 IWL_DEBUG_TX("Sending AUTH frame\n");
2605 else if (ieee80211_is_assoc_request(fc
))
2606 IWL_DEBUG_TX("Sending ASSOC frame\n");
2607 else if (ieee80211_is_reassoc_request(fc
))
2608 IWL_DEBUG_TX("Sending REASSOC frame\n");
2611 /* drop all data frame if we are not associated */
2612 if ((!iwl3945_is_associated(priv
) ||
2613 ((priv
->iw_mode
== IEEE80211_IF_TYPE_STA
) && !priv
->assoc_id
)) &&
2614 ((fc
& IEEE80211_FCTL_FTYPE
) == IEEE80211_FTYPE_DATA
)) {
2615 IWL_DEBUG_DROP("Dropping - !iwl3945_is_associated\n");
2619 spin_unlock_irqrestore(&priv
->lock
, flags
);
2621 hdr_len
= ieee80211_get_hdrlen(fc
);
2623 /* Find (or create) index into station table for destination station */
2624 sta_id
= iwl3945_get_sta_id(priv
, hdr
);
2625 if (sta_id
== IWL_INVALID_STATION
) {
2626 DECLARE_MAC_BUF(mac
);
2628 IWL_DEBUG_DROP("Dropping - INVALID STATION: %s\n",
2629 print_mac(mac
, hdr
->addr1
));
2633 IWL_DEBUG_RATE("station Id %d\n", sta_id
);
2635 qc
= ieee80211_get_qos_ctrl(hdr
);
2637 u8 tid
= (u8
)(le16_to_cpu(*qc
) & 0xf);
2638 seq_number
= priv
->stations
[sta_id
].tid
[tid
].seq_number
&
2640 hdr
->seq_ctrl
= cpu_to_le16(seq_number
) |
2642 __constant_cpu_to_le16(IEEE80211_SCTL_FRAG
));
2646 /* Descriptor for chosen Tx queue */
2647 txq
= &priv
->txq
[txq_id
];
2650 spin_lock_irqsave(&priv
->lock
, flags
);
2652 /* Set up first empty TFD within this queue's circular TFD buffer */
2653 tfd
= &txq
->bd
[q
->write_ptr
];
2654 memset(tfd
, 0, sizeof(*tfd
));
2655 control_flags
= (u32
*) tfd
;
2656 idx
= get_cmd_index(q
, q
->write_ptr
, 0);
2658 /* Set up driver data for this TFD */
2659 memset(&(txq
->txb
[q
->write_ptr
]), 0, sizeof(struct iwl3945_tx_info
));
2660 txq
->txb
[q
->write_ptr
].skb
[0] = skb
;
2661 memcpy(&(txq
->txb
[q
->write_ptr
].status
.control
),
2662 ctl
, sizeof(struct ieee80211_tx_control
));
2664 /* Init first empty entry in queue's array of Tx/cmd buffers */
2665 out_cmd
= &txq
->cmd
[idx
];
2666 memset(&out_cmd
->hdr
, 0, sizeof(out_cmd
->hdr
));
2667 memset(&out_cmd
->cmd
.tx
, 0, sizeof(out_cmd
->cmd
.tx
));
2670 * Set up the Tx-command (not MAC!) header.
2671 * Store the chosen Tx queue and TFD index within the sequence field;
2672 * after Tx, uCode's Tx response will return this value so driver can
2673 * locate the frame within the tx queue and do post-tx processing.
2675 out_cmd
->hdr
.cmd
= REPLY_TX
;
2676 out_cmd
->hdr
.sequence
= cpu_to_le16((u16
)(QUEUE_TO_SEQ(txq_id
) |
2677 INDEX_TO_SEQ(q
->write_ptr
)));
2679 /* Copy MAC header from skb into command buffer */
2680 memcpy(out_cmd
->cmd
.tx
.hdr
, hdr
, hdr_len
);
2683 * Use the first empty entry in this queue's command buffer array
2684 * to contain the Tx command and MAC header concatenated together
2685 * (payload data will be in another buffer).
2686 * Size of this varies, due to varying MAC header length.
2687 * If end is not dword aligned, we'll have 2 extra bytes at the end
2688 * of the MAC header (device reads on dword boundaries).
2689 * We'll tell device about this padding later.
2691 len
= priv
->hw_setting
.tx_cmd_len
+
2692 sizeof(struct iwl3945_cmd_header
) + hdr_len
;
2695 len
= (len
+ 3) & ~3;
2702 /* Physical address of this Tx command's header (not MAC header!),
2703 * within command buffer array. */
2704 txcmd_phys
= txq
->dma_addr_cmd
+ sizeof(struct iwl3945_cmd
) * idx
+
2705 offsetof(struct iwl3945_cmd
, hdr
);
2707 /* Add buffer containing Tx command and MAC(!) header to TFD's
2709 iwl3945_hw_txq_attach_buf_to_tfd(priv
, tfd
, txcmd_phys
, len
);
2711 if (!(ctl
->flags
& IEEE80211_TXCTL_DO_NOT_ENCRYPT
))
2712 iwl3945_build_tx_cmd_hwcrypto(priv
, ctl
, out_cmd
, skb
, 0);
2714 /* Set up TFD's 2nd entry to point directly to remainder of skb,
2715 * if any (802.11 null frames have no payload). */
2716 len
= skb
->len
- hdr_len
;
2718 phys_addr
= pci_map_single(priv
->pci_dev
, skb
->data
+ hdr_len
,
2719 len
, PCI_DMA_TODEVICE
);
2720 iwl3945_hw_txq_attach_buf_to_tfd(priv
, tfd
, phys_addr
, len
);
2724 /* If there is no payload, then we use only one Tx buffer */
2725 *control_flags
= TFD_CTL_COUNT_SET(1);
2727 /* Else use 2 buffers.
2728 * Tell 3945 about any padding after MAC header */
2729 *control_flags
= TFD_CTL_COUNT_SET(2) |
2730 TFD_CTL_PAD_SET(U32_PAD(len
));
2732 /* Total # bytes to be transmitted */
2733 len
= (u16
)skb
->len
;
2734 out_cmd
->cmd
.tx
.len
= cpu_to_le16(len
);
2736 /* TODO need this for burst mode later on */
2737 iwl3945_build_tx_cmd_basic(priv
, out_cmd
, ctl
, hdr
, unicast
, sta_id
);
2739 /* set is_hcca to 0; it probably will never be implemented */
2740 iwl3945_hw_build_tx_cmd_rate(priv
, out_cmd
, ctl
, hdr
, sta_id
, 0);
2742 out_cmd
->cmd
.tx
.tx_flags
&= ~TX_CMD_FLG_ANT_A_MSK
;
2743 out_cmd
->cmd
.tx
.tx_flags
&= ~TX_CMD_FLG_ANT_B_MSK
;
2745 if (!ieee80211_get_morefrag(hdr
)) {
2746 txq
->need_update
= 1;
2748 u8 tid
= (u8
)(le16_to_cpu(*qc
) & 0xf);
2749 priv
->stations
[sta_id
].tid
[tid
].seq_number
= seq_number
;
2753 txq
->need_update
= 0;
2756 iwl3945_print_hex_dump(IWL_DL_TX
, out_cmd
->cmd
.payload
,
2757 sizeof(out_cmd
->cmd
.tx
));
2759 iwl3945_print_hex_dump(IWL_DL_TX
, (u8
*)out_cmd
->cmd
.tx
.hdr
,
2760 ieee80211_get_hdrlen(fc
));
2762 /* Tell device the write index *just past* this latest filled TFD */
2763 q
->write_ptr
= iwl_queue_inc_wrap(q
->write_ptr
, q
->n_bd
);
2764 rc
= iwl3945_tx_queue_update_write_ptr(priv
, txq
);
2765 spin_unlock_irqrestore(&priv
->lock
, flags
);
2770 if ((iwl3945_queue_space(q
) < q
->high_mark
)
2771 && priv
->mac80211_registered
) {
2772 if (wait_write_ptr
) {
2773 spin_lock_irqsave(&priv
->lock
, flags
);
2774 txq
->need_update
= 1;
2775 iwl3945_tx_queue_update_write_ptr(priv
, txq
);
2776 spin_unlock_irqrestore(&priv
->lock
, flags
);
2779 ieee80211_stop_queue(priv
->hw
, ctl
->queue
);
2785 spin_unlock_irqrestore(&priv
->lock
, flags
);
2790 static void iwl3945_set_rate(struct iwl3945_priv
*priv
)
2792 const struct ieee80211_supported_band
*sband
= NULL
;
2793 struct ieee80211_rate
*rate
;
2796 sband
= iwl3945_get_band(priv
, priv
->band
);
2798 IWL_ERROR("Failed to set rate: unable to get hw mode\n");
2802 priv
->active_rate
= 0;
2803 priv
->active_rate_basic
= 0;
2805 IWL_DEBUG_RATE("Setting rates for %s GHz\n",
2806 sband
->band
== IEEE80211_BAND_2GHZ
? "2.4" : "5");
2808 for (i
= 0; i
< sband
->n_bitrates
; i
++) {
2809 rate
= &sband
->bitrates
[i
];
2810 if ((rate
->hw_value
< IWL_RATE_COUNT
) &&
2811 !(rate
->flags
& IEEE80211_CHAN_DISABLED
)) {
2812 IWL_DEBUG_RATE("Adding rate index %d (plcp %d)\n",
2813 rate
->hw_value
, iwl3945_rates
[rate
->hw_value
].plcp
);
2814 priv
->active_rate
|= (1 << rate
->hw_value
);
2818 IWL_DEBUG_RATE("Set active_rate = %0x, active_rate_basic = %0x\n",
2819 priv
->active_rate
, priv
->active_rate_basic
);
2822 * If a basic rate is configured, then use it (adding IWL_RATE_1M_MASK)
2823 * otherwise set it to the default of all CCK rates and 6, 12, 24 for
2826 if (priv
->active_rate_basic
& IWL_CCK_BASIC_RATES_MASK
)
2827 priv
->staging_rxon
.cck_basic_rates
=
2828 ((priv
->active_rate_basic
&
2829 IWL_CCK_RATES_MASK
) >> IWL_FIRST_CCK_RATE
) & 0xF;
2831 priv
->staging_rxon
.cck_basic_rates
=
2832 (IWL_CCK_BASIC_RATES_MASK
>> IWL_FIRST_CCK_RATE
) & 0xF;
2834 if (priv
->active_rate_basic
& IWL_OFDM_BASIC_RATES_MASK
)
2835 priv
->staging_rxon
.ofdm_basic_rates
=
2836 ((priv
->active_rate_basic
&
2837 (IWL_OFDM_BASIC_RATES_MASK
| IWL_RATE_6M_MASK
)) >>
2838 IWL_FIRST_OFDM_RATE
) & 0xFF;
2840 priv
->staging_rxon
.ofdm_basic_rates
=
2841 (IWL_OFDM_BASIC_RATES_MASK
>> IWL_FIRST_OFDM_RATE
) & 0xFF;
2844 static void iwl3945_radio_kill_sw(struct iwl3945_priv
*priv
, int disable_radio
)
2846 unsigned long flags
;
2848 if (!!disable_radio
== test_bit(STATUS_RF_KILL_SW
, &priv
->status
))
2851 IWL_DEBUG_RF_KILL("Manual SW RF KILL set to: RADIO %s\n",
2852 disable_radio
? "OFF" : "ON");
2854 if (disable_radio
) {
2855 iwl3945_scan_cancel(priv
);
2856 /* FIXME: This is a workaround for AP */
2857 if (priv
->iw_mode
!= IEEE80211_IF_TYPE_AP
) {
2858 spin_lock_irqsave(&priv
->lock
, flags
);
2859 iwl3945_write32(priv
, CSR_UCODE_DRV_GP1_SET
,
2860 CSR_UCODE_SW_BIT_RFKILL
);
2861 spin_unlock_irqrestore(&priv
->lock
, flags
);
2862 iwl3945_send_card_state(priv
, CARD_STATE_CMD_DISABLE
, 0);
2863 set_bit(STATUS_RF_KILL_SW
, &priv
->status
);
2868 spin_lock_irqsave(&priv
->lock
, flags
);
2869 iwl3945_write32(priv
, CSR_UCODE_DRV_GP1_CLR
, CSR_UCODE_SW_BIT_RFKILL
);
2871 clear_bit(STATUS_RF_KILL_SW
, &priv
->status
);
2872 spin_unlock_irqrestore(&priv
->lock
, flags
);
2877 spin_lock_irqsave(&priv
->lock
, flags
);
2878 iwl3945_read32(priv
, CSR_UCODE_DRV_GP1
);
2879 if (!iwl3945_grab_nic_access(priv
))
2880 iwl3945_release_nic_access(priv
);
2881 spin_unlock_irqrestore(&priv
->lock
, flags
);
2883 if (test_bit(STATUS_RF_KILL_HW
, &priv
->status
)) {
2884 IWL_DEBUG_RF_KILL("Can not turn radio back on - "
2885 "disabled by HW switch\n");
2889 queue_work(priv
->workqueue
, &priv
->restart
);
2893 void iwl3945_set_decrypted_flag(struct iwl3945_priv
*priv
, struct sk_buff
*skb
,
2894 u32 decrypt_res
, struct ieee80211_rx_status
*stats
)
2897 le16_to_cpu(((struct ieee80211_hdr
*)skb
->data
)->frame_control
);
2899 if (priv
->active_rxon
.filter_flags
& RXON_FILTER_DIS_DECRYPT_MSK
)
2902 if (!(fc
& IEEE80211_FCTL_PROTECTED
))
2905 IWL_DEBUG_RX("decrypt_res:0x%x\n", decrypt_res
);
2906 switch (decrypt_res
& RX_RES_STATUS_SEC_TYPE_MSK
) {
2907 case RX_RES_STATUS_SEC_TYPE_TKIP
:
2908 if ((decrypt_res
& RX_RES_STATUS_DECRYPT_TYPE_MSK
) ==
2909 RX_RES_STATUS_BAD_ICV_MIC
)
2910 stats
->flag
|= RX_FLAG_MMIC_ERROR
;
2911 case RX_RES_STATUS_SEC_TYPE_WEP
:
2912 case RX_RES_STATUS_SEC_TYPE_CCMP
:
2913 if ((decrypt_res
& RX_RES_STATUS_DECRYPT_TYPE_MSK
) ==
2914 RX_RES_STATUS_DECRYPT_OK
) {
2915 IWL_DEBUG_RX("hw decrypt successfully!!!\n");
2916 stats
->flag
|= RX_FLAG_DECRYPTED
;
2925 #define IWL_PACKET_RETRY_TIME HZ
2927 int iwl3945_is_duplicate_packet(struct iwl3945_priv
*priv
, struct ieee80211_hdr
*header
)
2929 u16 sc
= le16_to_cpu(header
->seq_ctrl
);
2930 u16 seq
= (sc
& IEEE80211_SCTL_SEQ
) >> 4;
2931 u16 frag
= sc
& IEEE80211_SCTL_FRAG
;
2932 u16
*last_seq
, *last_frag
;
2933 unsigned long *last_time
;
2935 switch (priv
->iw_mode
) {
2936 case IEEE80211_IF_TYPE_IBSS
:{
2937 struct list_head
*p
;
2938 struct iwl3945_ibss_seq
*entry
= NULL
;
2939 u8
*mac
= header
->addr2
;
2940 int index
= mac
[5] & (IWL_IBSS_MAC_HASH_SIZE
- 1);
2942 __list_for_each(p
, &priv
->ibss_mac_hash
[index
]) {
2943 entry
= list_entry(p
, struct iwl3945_ibss_seq
, list
);
2944 if (!compare_ether_addr(entry
->mac
, mac
))
2947 if (p
== &priv
->ibss_mac_hash
[index
]) {
2948 entry
= kzalloc(sizeof(*entry
), GFP_ATOMIC
);
2950 IWL_ERROR("Cannot malloc new mac entry\n");
2953 memcpy(entry
->mac
, mac
, ETH_ALEN
);
2954 entry
->seq_num
= seq
;
2955 entry
->frag_num
= frag
;
2956 entry
->packet_time
= jiffies
;
2957 list_add(&entry
->list
, &priv
->ibss_mac_hash
[index
]);
2960 last_seq
= &entry
->seq_num
;
2961 last_frag
= &entry
->frag_num
;
2962 last_time
= &entry
->packet_time
;
2965 case IEEE80211_IF_TYPE_STA
:
2966 last_seq
= &priv
->last_seq_num
;
2967 last_frag
= &priv
->last_frag_num
;
2968 last_time
= &priv
->last_packet_time
;
2973 if ((*last_seq
== seq
) &&
2974 time_after(*last_time
+ IWL_PACKET_RETRY_TIME
, jiffies
)) {
2975 if (*last_frag
== frag
)
2977 if (*last_frag
+ 1 != frag
)
2978 /* out-of-order fragment */
2984 *last_time
= jiffies
;
2991 #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT
2993 #include "iwl-spectrum.h"
2995 #define BEACON_TIME_MASK_LOW 0x00FFFFFF
2996 #define BEACON_TIME_MASK_HIGH 0xFF000000
2997 #define TIME_UNIT 1024
3000 * extended beacon time format
3001 * time in usec will be changed into a 32-bit value in 8:24 format
3002 * the high 1 byte is the beacon counts
3003 * the lower 3 bytes is the time in usec within one beacon interval
3006 static u32
iwl3945_usecs_to_beacons(u32 usec
, u32 beacon_interval
)
3010 u32 interval
= beacon_interval
* 1024;
3012 if (!interval
|| !usec
)
3015 quot
= (usec
/ interval
) & (BEACON_TIME_MASK_HIGH
>> 24);
3016 rem
= (usec
% interval
) & BEACON_TIME_MASK_LOW
;
3018 return (quot
<< 24) + rem
;
3021 /* base is usually what we get from ucode with each received frame,
3022 * the same as HW timer counter counting down
3025 static __le32
iwl3945_add_beacon_time(u32 base
, u32 addon
, u32 beacon_interval
)
3027 u32 base_low
= base
& BEACON_TIME_MASK_LOW
;
3028 u32 addon_low
= addon
& BEACON_TIME_MASK_LOW
;
3029 u32 interval
= beacon_interval
* TIME_UNIT
;
3030 u32 res
= (base
& BEACON_TIME_MASK_HIGH
) +
3031 (addon
& BEACON_TIME_MASK_HIGH
);
3033 if (base_low
> addon_low
)
3034 res
+= base_low
- addon_low
;
3035 else if (base_low
< addon_low
) {
3036 res
+= interval
+ base_low
- addon_low
;
3041 return cpu_to_le32(res
);
3044 static int iwl3945_get_measurement(struct iwl3945_priv
*priv
,
3045 struct ieee80211_measurement_params
*params
,
3048 struct iwl3945_spectrum_cmd spectrum
;
3049 struct iwl3945_rx_packet
*res
;
3050 struct iwl3945_host_cmd cmd
= {
3051 .id
= REPLY_SPECTRUM_MEASUREMENT_CMD
,
3052 .data
= (void *)&spectrum
,
3053 .meta
.flags
= CMD_WANT_SKB
,
3055 u32 add_time
= le64_to_cpu(params
->start_time
);
3057 int spectrum_resp_status
;
3058 int duration
= le16_to_cpu(params
->duration
);
3060 if (iwl3945_is_associated(priv
))
3062 iwl3945_usecs_to_beacons(
3063 le64_to_cpu(params
->start_time
) - priv
->last_tsf
,
3064 le16_to_cpu(priv
->rxon_timing
.beacon_interval
));
3066 memset(&spectrum
, 0, sizeof(spectrum
));
3068 spectrum
.channel_count
= cpu_to_le16(1);
3070 RXON_FLG_TSF2HOST_MSK
| RXON_FLG_ANT_A_MSK
| RXON_FLG_DIS_DIV_MSK
;
3071 spectrum
.filter_flags
= MEASUREMENT_FILTER_FLAG
;
3072 cmd
.len
= sizeof(spectrum
);
3073 spectrum
.len
= cpu_to_le16(cmd
.len
- sizeof(spectrum
.len
));
3075 if (iwl3945_is_associated(priv
))
3076 spectrum
.start_time
=
3077 iwl3945_add_beacon_time(priv
->last_beacon_time
,
3079 le16_to_cpu(priv
->rxon_timing
.beacon_interval
));
3081 spectrum
.start_time
= 0;
3083 spectrum
.channels
[0].duration
= cpu_to_le32(duration
* TIME_UNIT
);
3084 spectrum
.channels
[0].channel
= params
->channel
;
3085 spectrum
.channels
[0].type
= type
;
3086 if (priv
->active_rxon
.flags
& RXON_FLG_BAND_24G_MSK
)
3087 spectrum
.flags
|= RXON_FLG_BAND_24G_MSK
|
3088 RXON_FLG_AUTO_DETECT_MSK
| RXON_FLG_TGG_PROTECT_MSK
;
3090 rc
= iwl3945_send_cmd_sync(priv
, &cmd
);
3094 res
= (struct iwl3945_rx_packet
*)cmd
.meta
.u
.skb
->data
;
3095 if (res
->hdr
.flags
& IWL_CMD_FAILED_MSK
) {
3096 IWL_ERROR("Bad return from REPLY_RX_ON_ASSOC command\n");
3100 spectrum_resp_status
= le16_to_cpu(res
->u
.spectrum
.status
);
3101 switch (spectrum_resp_status
) {
3102 case 0: /* Command will be handled */
3103 if (res
->u
.spectrum
.id
!= 0xff) {
3104 IWL_DEBUG_INFO("Replaced existing measurement: %d\n",
3105 res
->u
.spectrum
.id
);
3106 priv
->measurement_status
&= ~MEASUREMENT_READY
;
3108 priv
->measurement_status
|= MEASUREMENT_ACTIVE
;
3112 case 1: /* Command will not be handled */
3117 dev_kfree_skb_any(cmd
.meta
.u
.skb
);
3123 static void iwl3945_rx_reply_alive(struct iwl3945_priv
*priv
,
3124 struct iwl3945_rx_mem_buffer
*rxb
)
3126 struct iwl3945_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3127 struct iwl3945_alive_resp
*palive
;
3128 struct delayed_work
*pwork
;
3130 palive
= &pkt
->u
.alive_frame
;
3132 IWL_DEBUG_INFO("Alive ucode status 0x%08X revision "
3134 palive
->is_valid
, palive
->ver_type
,
3135 palive
->ver_subtype
);
3137 if (palive
->ver_subtype
== INITIALIZE_SUBTYPE
) {
3138 IWL_DEBUG_INFO("Initialization Alive received.\n");
3139 memcpy(&priv
->card_alive_init
,
3140 &pkt
->u
.alive_frame
,
3141 sizeof(struct iwl3945_init_alive_resp
));
3142 pwork
= &priv
->init_alive_start
;
3144 IWL_DEBUG_INFO("Runtime Alive received.\n");
3145 memcpy(&priv
->card_alive
, &pkt
->u
.alive_frame
,
3146 sizeof(struct iwl3945_alive_resp
));
3147 pwork
= &priv
->alive_start
;
3148 iwl3945_disable_events(priv
);
3151 /* We delay the ALIVE response by 5ms to
3152 * give the HW RF Kill time to activate... */
3153 if (palive
->is_valid
== UCODE_VALID_OK
)
3154 queue_delayed_work(priv
->workqueue
, pwork
,
3155 msecs_to_jiffies(5));
3157 IWL_WARNING("uCode did not respond OK.\n");
3160 static void iwl3945_rx_reply_add_sta(struct iwl3945_priv
*priv
,
3161 struct iwl3945_rx_mem_buffer
*rxb
)
3163 struct iwl3945_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3165 IWL_DEBUG_RX("Received REPLY_ADD_STA: 0x%02X\n", pkt
->u
.status
);
3169 static void iwl3945_rx_reply_error(struct iwl3945_priv
*priv
,
3170 struct iwl3945_rx_mem_buffer
*rxb
)
3172 struct iwl3945_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3174 IWL_ERROR("Error Reply type 0x%08X cmd %s (0x%02X) "
3175 "seq 0x%04X ser 0x%08X\n",
3176 le32_to_cpu(pkt
->u
.err_resp
.error_type
),
3177 get_cmd_string(pkt
->u
.err_resp
.cmd_id
),
3178 pkt
->u
.err_resp
.cmd_id
,
3179 le16_to_cpu(pkt
->u
.err_resp
.bad_cmd_seq_num
),
3180 le32_to_cpu(pkt
->u
.err_resp
.error_info
));
3183 #define TX_STATUS_ENTRY(x) case TX_STATUS_FAIL_ ## x: return #x
3185 static void iwl3945_rx_csa(struct iwl3945_priv
*priv
, struct iwl3945_rx_mem_buffer
*rxb
)
3187 struct iwl3945_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3188 struct iwl3945_rxon_cmd
*rxon
= (void *)&priv
->active_rxon
;
3189 struct iwl3945_csa_notification
*csa
= &(pkt
->u
.csa_notif
);
3190 IWL_DEBUG_11H("CSA notif: channel %d, status %d\n",
3191 le16_to_cpu(csa
->channel
), le32_to_cpu(csa
->status
));
3192 rxon
->channel
= csa
->channel
;
3193 priv
->staging_rxon
.channel
= csa
->channel
;
3196 static void iwl3945_rx_spectrum_measure_notif(struct iwl3945_priv
*priv
,
3197 struct iwl3945_rx_mem_buffer
*rxb
)
3199 #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT
3200 struct iwl3945_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3201 struct iwl3945_spectrum_notification
*report
= &(pkt
->u
.spectrum_notif
);
3203 if (!report
->state
) {
3204 IWL_DEBUG(IWL_DL_11H
| IWL_DL_INFO
,
3205 "Spectrum Measure Notification: Start\n");
3209 memcpy(&priv
->measure_report
, report
, sizeof(*report
));
3210 priv
->measurement_status
|= MEASUREMENT_READY
;
3214 static void iwl3945_rx_pm_sleep_notif(struct iwl3945_priv
*priv
,
3215 struct iwl3945_rx_mem_buffer
*rxb
)
3217 #ifdef CONFIG_IWL3945_DEBUG
3218 struct iwl3945_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3219 struct iwl3945_sleep_notification
*sleep
= &(pkt
->u
.sleep_notif
);
3220 IWL_DEBUG_RX("sleep mode: %d, src: %d\n",
3221 sleep
->pm_sleep_mode
, sleep
->pm_wakeup_src
);
3225 static void iwl3945_rx_pm_debug_statistics_notif(struct iwl3945_priv
*priv
,
3226 struct iwl3945_rx_mem_buffer
*rxb
)
3228 struct iwl3945_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3229 IWL_DEBUG_RADIO("Dumping %d bytes of unhandled "
3230 "notification for %s:\n",
3231 le32_to_cpu(pkt
->len
), get_cmd_string(pkt
->hdr
.cmd
));
3232 iwl3945_print_hex_dump(IWL_DL_RADIO
, pkt
->u
.raw
, le32_to_cpu(pkt
->len
));
3235 static void iwl3945_bg_beacon_update(struct work_struct
*work
)
3237 struct iwl3945_priv
*priv
=
3238 container_of(work
, struct iwl3945_priv
, beacon_update
);
3239 struct sk_buff
*beacon
;
3241 /* Pull updated AP beacon from mac80211. will fail if not in AP mode */
3242 beacon
= ieee80211_beacon_get(priv
->hw
, priv
->vif
, NULL
);
3245 IWL_ERROR("update beacon failed\n");
3249 mutex_lock(&priv
->mutex
);
3250 /* new beacon skb is allocated every time; dispose previous.*/
3251 if (priv
->ibss_beacon
)
3252 dev_kfree_skb(priv
->ibss_beacon
);
3254 priv
->ibss_beacon
= beacon
;
3255 mutex_unlock(&priv
->mutex
);
3257 iwl3945_send_beacon_cmd(priv
);
3260 static void iwl3945_rx_beacon_notif(struct iwl3945_priv
*priv
,
3261 struct iwl3945_rx_mem_buffer
*rxb
)
3263 #ifdef CONFIG_IWL3945_DEBUG
3264 struct iwl3945_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3265 struct iwl3945_beacon_notif
*beacon
= &(pkt
->u
.beacon_status
);
3266 u8 rate
= beacon
->beacon_notify_hdr
.rate
;
3268 IWL_DEBUG_RX("beacon status %x retries %d iss %d "
3269 "tsf %d %d rate %d\n",
3270 le32_to_cpu(beacon
->beacon_notify_hdr
.status
) & TX_STATUS_MSK
,
3271 beacon
->beacon_notify_hdr
.failure_frame
,
3272 le32_to_cpu(beacon
->ibss_mgr_status
),
3273 le32_to_cpu(beacon
->high_tsf
),
3274 le32_to_cpu(beacon
->low_tsf
), rate
);
3277 if ((priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) &&
3278 (!test_bit(STATUS_EXIT_PENDING
, &priv
->status
)))
3279 queue_work(priv
->workqueue
, &priv
->beacon_update
);
3282 /* Service response to REPLY_SCAN_CMD (0x80) */
3283 static void iwl3945_rx_reply_scan(struct iwl3945_priv
*priv
,
3284 struct iwl3945_rx_mem_buffer
*rxb
)
3286 #ifdef CONFIG_IWL3945_DEBUG
3287 struct iwl3945_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3288 struct iwl3945_scanreq_notification
*notif
=
3289 (struct iwl3945_scanreq_notification
*)pkt
->u
.raw
;
3291 IWL_DEBUG_RX("Scan request status = 0x%x\n", notif
->status
);
3295 /* Service SCAN_START_NOTIFICATION (0x82) */
3296 static void iwl3945_rx_scan_start_notif(struct iwl3945_priv
*priv
,
3297 struct iwl3945_rx_mem_buffer
*rxb
)
3299 struct iwl3945_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3300 struct iwl3945_scanstart_notification
*notif
=
3301 (struct iwl3945_scanstart_notification
*)pkt
->u
.raw
;
3302 priv
->scan_start_tsf
= le32_to_cpu(notif
->tsf_low
);
3303 IWL_DEBUG_SCAN("Scan start: "
3305 "(TSF: 0x%08X:%08X) - %d (beacon timer %u)\n",
3307 notif
->band
? "bg" : "a",
3309 notif
->tsf_low
, notif
->status
, notif
->beacon_timer
);
3312 /* Service SCAN_RESULTS_NOTIFICATION (0x83) */
3313 static void iwl3945_rx_scan_results_notif(struct iwl3945_priv
*priv
,
3314 struct iwl3945_rx_mem_buffer
*rxb
)
3316 struct iwl3945_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3317 struct iwl3945_scanresults_notification
*notif
=
3318 (struct iwl3945_scanresults_notification
*)pkt
->u
.raw
;
3320 IWL_DEBUG_SCAN("Scan ch.res: "
3322 "(TSF: 0x%08X:%08X) - %d "
3323 "elapsed=%lu usec (%dms since last)\n",
3325 notif
->band
? "bg" : "a",
3326 le32_to_cpu(notif
->tsf_high
),
3327 le32_to_cpu(notif
->tsf_low
),
3328 le32_to_cpu(notif
->statistics
[0]),
3329 le32_to_cpu(notif
->tsf_low
) - priv
->scan_start_tsf
,
3330 jiffies_to_msecs(elapsed_jiffies
3331 (priv
->last_scan_jiffies
, jiffies
)));
3333 priv
->last_scan_jiffies
= jiffies
;
3334 priv
->next_scan_jiffies
= 0;
3337 /* Service SCAN_COMPLETE_NOTIFICATION (0x84) */
3338 static void iwl3945_rx_scan_complete_notif(struct iwl3945_priv
*priv
,
3339 struct iwl3945_rx_mem_buffer
*rxb
)
3341 struct iwl3945_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3342 struct iwl3945_scancomplete_notification
*scan_notif
= (void *)pkt
->u
.raw
;
3344 IWL_DEBUG_SCAN("Scan complete: %d channels (TSF 0x%08X:%08X) - %d\n",
3345 scan_notif
->scanned_channels
,
3346 scan_notif
->tsf_low
,
3347 scan_notif
->tsf_high
, scan_notif
->status
);
3349 /* The HW is no longer scanning */
3350 clear_bit(STATUS_SCAN_HW
, &priv
->status
);
3352 /* The scan completion notification came in, so kill that timer... */
3353 cancel_delayed_work(&priv
->scan_check
);
3355 IWL_DEBUG_INFO("Scan pass on %sGHz took %dms\n",
3356 (priv
->scan_bands
== 2) ? "2.4" : "5.2",
3357 jiffies_to_msecs(elapsed_jiffies
3358 (priv
->scan_pass_start
, jiffies
)));
3360 /* Remove this scanned band from the list
3361 * of pending bands to scan */
3364 /* If a request to abort was given, or the scan did not succeed
3365 * then we reset the scan state machine and terminate,
3366 * re-queuing another scan if one has been requested */
3367 if (test_bit(STATUS_SCAN_ABORTING
, &priv
->status
)) {
3368 IWL_DEBUG_INFO("Aborted scan completed.\n");
3369 clear_bit(STATUS_SCAN_ABORTING
, &priv
->status
);
3371 /* If there are more bands on this scan pass reschedule */
3372 if (priv
->scan_bands
> 0)
3376 priv
->last_scan_jiffies
= jiffies
;
3377 priv
->next_scan_jiffies
= 0;
3378 IWL_DEBUG_INFO("Setting scan to off\n");
3380 clear_bit(STATUS_SCANNING
, &priv
->status
);
3382 IWL_DEBUG_INFO("Scan took %dms\n",
3383 jiffies_to_msecs(elapsed_jiffies(priv
->scan_start
, jiffies
)));
3385 queue_work(priv
->workqueue
, &priv
->scan_completed
);
3390 priv
->scan_pass_start
= jiffies
;
3391 queue_work(priv
->workqueue
, &priv
->request_scan
);
3394 /* Handle notification from uCode that card's power state is changing
3395 * due to software, hardware, or critical temperature RFKILL */
3396 static void iwl3945_rx_card_state_notif(struct iwl3945_priv
*priv
,
3397 struct iwl3945_rx_mem_buffer
*rxb
)
3399 struct iwl3945_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3400 u32 flags
= le32_to_cpu(pkt
->u
.card_state_notif
.flags
);
3401 unsigned long status
= priv
->status
;
3403 IWL_DEBUG_RF_KILL("Card state received: HW:%s SW:%s\n",
3404 (flags
& HW_CARD_DISABLED
) ? "Kill" : "On",
3405 (flags
& SW_CARD_DISABLED
) ? "Kill" : "On");
3407 iwl3945_write32(priv
, CSR_UCODE_DRV_GP1_SET
,
3408 CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED
);
3410 if (flags
& HW_CARD_DISABLED
)
3411 set_bit(STATUS_RF_KILL_HW
, &priv
->status
);
3413 clear_bit(STATUS_RF_KILL_HW
, &priv
->status
);
3416 if (flags
& SW_CARD_DISABLED
)
3417 set_bit(STATUS_RF_KILL_SW
, &priv
->status
);
3419 clear_bit(STATUS_RF_KILL_SW
, &priv
->status
);
3421 iwl3945_scan_cancel(priv
);
3423 if ((test_bit(STATUS_RF_KILL_HW
, &status
) !=
3424 test_bit(STATUS_RF_KILL_HW
, &priv
->status
)) ||
3425 (test_bit(STATUS_RF_KILL_SW
, &status
) !=
3426 test_bit(STATUS_RF_KILL_SW
, &priv
->status
)))
3427 queue_work(priv
->workqueue
, &priv
->rf_kill
);
3429 wake_up_interruptible(&priv
->wait_command_queue
);
3433 * iwl3945_setup_rx_handlers - Initialize Rx handler callbacks
3435 * Setup the RX handlers for each of the reply types sent from the uCode
3438 * This function chains into the hardware specific files for them to setup
3439 * any hardware specific handlers as well.
3441 static void iwl3945_setup_rx_handlers(struct iwl3945_priv
*priv
)
3443 priv
->rx_handlers
[REPLY_ALIVE
] = iwl3945_rx_reply_alive
;
3444 priv
->rx_handlers
[REPLY_ADD_STA
] = iwl3945_rx_reply_add_sta
;
3445 priv
->rx_handlers
[REPLY_ERROR
] = iwl3945_rx_reply_error
;
3446 priv
->rx_handlers
[CHANNEL_SWITCH_NOTIFICATION
] = iwl3945_rx_csa
;
3447 priv
->rx_handlers
[SPECTRUM_MEASURE_NOTIFICATION
] =
3448 iwl3945_rx_spectrum_measure_notif
;
3449 priv
->rx_handlers
[PM_SLEEP_NOTIFICATION
] = iwl3945_rx_pm_sleep_notif
;
3450 priv
->rx_handlers
[PM_DEBUG_STATISTIC_NOTIFIC
] =
3451 iwl3945_rx_pm_debug_statistics_notif
;
3452 priv
->rx_handlers
[BEACON_NOTIFICATION
] = iwl3945_rx_beacon_notif
;
3455 * The same handler is used for both the REPLY to a discrete
3456 * statistics request from the host as well as for the periodic
3457 * statistics notifications (after received beacons) from the uCode.
3459 priv
->rx_handlers
[REPLY_STATISTICS_CMD
] = iwl3945_hw_rx_statistics
;
3460 priv
->rx_handlers
[STATISTICS_NOTIFICATION
] = iwl3945_hw_rx_statistics
;
3462 priv
->rx_handlers
[REPLY_SCAN_CMD
] = iwl3945_rx_reply_scan
;
3463 priv
->rx_handlers
[SCAN_START_NOTIFICATION
] = iwl3945_rx_scan_start_notif
;
3464 priv
->rx_handlers
[SCAN_RESULTS_NOTIFICATION
] =
3465 iwl3945_rx_scan_results_notif
;
3466 priv
->rx_handlers
[SCAN_COMPLETE_NOTIFICATION
] =
3467 iwl3945_rx_scan_complete_notif
;
3468 priv
->rx_handlers
[CARD_STATE_NOTIFICATION
] = iwl3945_rx_card_state_notif
;
3470 /* Set up hardware specific Rx handlers */
3471 iwl3945_hw_rx_handler_setup(priv
);
3475 * iwl3945_cmd_queue_reclaim - Reclaim CMD queue entries
3476 * When FW advances 'R' index, all entries between old and new 'R' index
3477 * need to be reclaimed.
3479 static void iwl3945_cmd_queue_reclaim(struct iwl3945_priv
*priv
,
3480 int txq_id
, int index
)
3482 struct iwl3945_tx_queue
*txq
= &priv
->txq
[txq_id
];
3483 struct iwl3945_queue
*q
= &txq
->q
;
3486 if ((index
>= q
->n_bd
) || (iwl3945_x2_queue_used(q
, index
) == 0)) {
3487 IWL_ERROR("Read index for DMA queue txq id (%d), index %d, "
3488 "is out of range [0-%d] %d %d.\n", txq_id
,
3489 index
, q
->n_bd
, q
->write_ptr
, q
->read_ptr
);
3493 for (index
= iwl_queue_inc_wrap(index
, q
->n_bd
); q
->read_ptr
!= index
;
3494 q
->read_ptr
= iwl_queue_inc_wrap(q
->read_ptr
, q
->n_bd
)) {
3496 IWL_ERROR("HCMD skipped: index (%d) %d %d\n", index
,
3497 q
->write_ptr
, q
->read_ptr
);
3498 queue_work(priv
->workqueue
, &priv
->restart
);
3507 * iwl3945_tx_cmd_complete - Pull unused buffers off the queue and reclaim them
3508 * @rxb: Rx buffer to reclaim
3510 * If an Rx buffer has an async callback associated with it the callback
3511 * will be executed. The attached skb (if present) will only be freed
3512 * if the callback returns 1
3514 static void iwl3945_tx_cmd_complete(struct iwl3945_priv
*priv
,
3515 struct iwl3945_rx_mem_buffer
*rxb
)
3517 struct iwl3945_rx_packet
*pkt
= (struct iwl3945_rx_packet
*)rxb
->skb
->data
;
3518 u16 sequence
= le16_to_cpu(pkt
->hdr
.sequence
);
3519 int txq_id
= SEQ_TO_QUEUE(sequence
);
3520 int index
= SEQ_TO_INDEX(sequence
);
3521 int huge
= sequence
& SEQ_HUGE_FRAME
;
3523 struct iwl3945_cmd
*cmd
;
3525 BUG_ON(txq_id
!= IWL_CMD_QUEUE_NUM
);
3527 cmd_index
= get_cmd_index(&priv
->txq
[IWL_CMD_QUEUE_NUM
].q
, index
, huge
);
3528 cmd
= &priv
->txq
[IWL_CMD_QUEUE_NUM
].cmd
[cmd_index
];
3530 /* Input error checking is done when commands are added to queue. */
3531 if (cmd
->meta
.flags
& CMD_WANT_SKB
) {
3532 cmd
->meta
.source
->u
.skb
= rxb
->skb
;
3534 } else if (cmd
->meta
.u
.callback
&&
3535 !cmd
->meta
.u
.callback(priv
, cmd
, rxb
->skb
))
3538 iwl3945_cmd_queue_reclaim(priv
, txq_id
, index
);
3540 if (!(cmd
->meta
.flags
& CMD_ASYNC
)) {
3541 clear_bit(STATUS_HCMD_ACTIVE
, &priv
->status
);
3542 wake_up_interruptible(&priv
->wait_command_queue
);
3546 /************************** RX-FUNCTIONS ****************************/
3548 * Rx theory of operation
3550 * The host allocates 32 DMA target addresses and passes the host address
3551 * to the firmware at register IWL_RFDS_TABLE_LOWER + N * RFD_SIZE where N is
3555 * The host/firmware share two index registers for managing the Rx buffers.
3557 * The READ index maps to the first position that the firmware may be writing
3558 * to -- the driver can read up to (but not including) this position and get
3560 * The READ index is managed by the firmware once the card is enabled.
3562 * The WRITE index maps to the last position the driver has read from -- the
3563 * position preceding WRITE is the last slot the firmware can place a packet.
3565 * The queue is empty (no good data) if WRITE = READ - 1, and is full if
3568 * During initialization, the host sets up the READ queue position to the first
3569 * INDEX position, and WRITE to the last (READ - 1 wrapped)
3571 * When the firmware places a packet in a buffer, it will advance the READ index
3572 * and fire the RX interrupt. The driver can then query the READ index and
3573 * process as many packets as possible, moving the WRITE index forward as it
3574 * resets the Rx queue buffers with new memory.
3576 * The management in the driver is as follows:
3577 * + A list of pre-allocated SKBs is stored in iwl->rxq->rx_free. When
3578 * iwl->rxq->free_count drops to or below RX_LOW_WATERMARK, work is scheduled
3579 * to replenish the iwl->rxq->rx_free.
3580 * + In iwl3945_rx_replenish (scheduled) if 'processed' != 'read' then the
3581 * iwl->rxq is replenished and the READ INDEX is updated (updating the
3582 * 'processed' and 'read' driver indexes as well)
3583 * + A received packet is processed and handed to the kernel network stack,
3584 * detached from the iwl->rxq. The driver 'processed' index is updated.
3585 * + The Host/Firmware iwl->rxq is replenished at tasklet time from the rx_free
3586 * list. If there are no allocated buffers in iwl->rxq->rx_free, the READ
3587 * INDEX is not incremented and iwl->status(RX_STALLED) is set. If there
3588 * were enough free buffers and RX_STALLED is set it is cleared.
3593 * iwl3945_rx_queue_alloc() Allocates rx_free
3594 * iwl3945_rx_replenish() Replenishes rx_free list from rx_used, and calls
3595 * iwl3945_rx_queue_restock
3596 * iwl3945_rx_queue_restock() Moves available buffers from rx_free into Rx
3597 * queue, updates firmware pointers, and updates
3598 * the WRITE index. If insufficient rx_free buffers
3599 * are available, schedules iwl3945_rx_replenish
3601 * -- enable interrupts --
3602 * ISR - iwl3945_rx() Detach iwl3945_rx_mem_buffers from pool up to the
3603 * READ INDEX, detaching the SKB from the pool.
3604 * Moves the packet buffer from queue to rx_used.
3605 * Calls iwl3945_rx_queue_restock to refill any empty
3612 * iwl3945_rx_queue_space - Return number of free slots available in queue.
3614 static int iwl3945_rx_queue_space(const struct iwl3945_rx_queue
*q
)
3616 int s
= q
->read
- q
->write
;
3619 /* keep some buffer to not confuse full and empty queue */
3627 * iwl3945_rx_queue_update_write_ptr - Update the write pointer for the RX queue
3629 int iwl3945_rx_queue_update_write_ptr(struct iwl3945_priv
*priv
, struct iwl3945_rx_queue
*q
)
3633 unsigned long flags
;
3635 spin_lock_irqsave(&q
->lock
, flags
);
3637 if (q
->need_update
== 0)
3640 /* If power-saving is in use, make sure device is awake */
3641 if (test_bit(STATUS_POWER_PMI
, &priv
->status
)) {
3642 reg
= iwl3945_read32(priv
, CSR_UCODE_DRV_GP1
);
3644 if (reg
& CSR_UCODE_DRV_GP1_BIT_MAC_SLEEP
) {
3645 iwl3945_set_bit(priv
, CSR_GP_CNTRL
,
3646 CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ
);
3650 rc
= iwl3945_grab_nic_access(priv
);
3654 /* Device expects a multiple of 8 */
3655 iwl3945_write_direct32(priv
, FH_RSCSR_CHNL0_WPTR
,
3657 iwl3945_release_nic_access(priv
);
3659 /* Else device is assumed to be awake */
3661 /* Device expects a multiple of 8 */
3662 iwl3945_write32(priv
, FH_RSCSR_CHNL0_WPTR
, q
->write
& ~0x7);
3668 spin_unlock_irqrestore(&q
->lock
, flags
);
3673 * iwl3945_dma_addr2rbd_ptr - convert a DMA address to a uCode read buffer ptr
3675 static inline __le32
iwl3945_dma_addr2rbd_ptr(struct iwl3945_priv
*priv
,
3676 dma_addr_t dma_addr
)
3678 return cpu_to_le32((u32
)dma_addr
);
3682 * iwl3945_rx_queue_restock - refill RX queue from pre-allocated pool
3684 * If there are slots in the RX queue that need to be restocked,
3685 * and we have free pre-allocated buffers, fill the ranks as much
3686 * as we can, pulling from rx_free.
3688 * This moves the 'write' index forward to catch up with 'processed', and
3689 * also updates the memory address in the firmware to reference the new
3692 static int iwl3945_rx_queue_restock(struct iwl3945_priv
*priv
)
3694 struct iwl3945_rx_queue
*rxq
= &priv
->rxq
;
3695 struct list_head
*element
;
3696 struct iwl3945_rx_mem_buffer
*rxb
;
3697 unsigned long flags
;
3700 spin_lock_irqsave(&rxq
->lock
, flags
);
3701 write
= rxq
->write
& ~0x7;
3702 while ((iwl3945_rx_queue_space(rxq
) > 0) && (rxq
->free_count
)) {
3703 /* Get next free Rx buffer, remove from free list */
3704 element
= rxq
->rx_free
.next
;
3705 rxb
= list_entry(element
, struct iwl3945_rx_mem_buffer
, list
);
3708 /* Point to Rx buffer via next RBD in circular buffer */
3709 rxq
->bd
[rxq
->write
] = iwl3945_dma_addr2rbd_ptr(priv
, rxb
->dma_addr
);
3710 rxq
->queue
[rxq
->write
] = rxb
;
3711 rxq
->write
= (rxq
->write
+ 1) & RX_QUEUE_MASK
;
3714 spin_unlock_irqrestore(&rxq
->lock
, flags
);
3715 /* If the pre-allocated buffer pool is dropping low, schedule to
3717 if (rxq
->free_count
<= RX_LOW_WATERMARK
)
3718 queue_work(priv
->workqueue
, &priv
->rx_replenish
);
3721 /* If we've added more space for the firmware to place data, tell it.
3722 * Increment device's write pointer in multiples of 8. */
3723 if ((write
!= (rxq
->write
& ~0x7))
3724 || (abs(rxq
->write
- rxq
->read
) > 7)) {
3725 spin_lock_irqsave(&rxq
->lock
, flags
);
3726 rxq
->need_update
= 1;
3727 spin_unlock_irqrestore(&rxq
->lock
, flags
);
3728 rc
= iwl3945_rx_queue_update_write_ptr(priv
, rxq
);
3737 * iwl3945_rx_replenish - Move all used packet from rx_used to rx_free
3739 * When moving to rx_free an SKB is allocated for the slot.
3741 * Also restock the Rx queue via iwl3945_rx_queue_restock.
3742 * This is called as a scheduled work item (except for during initialization)
3744 static void iwl3945_rx_allocate(struct iwl3945_priv
*priv
)
3746 struct iwl3945_rx_queue
*rxq
= &priv
->rxq
;
3747 struct list_head
*element
;
3748 struct iwl3945_rx_mem_buffer
*rxb
;
3749 unsigned long flags
;
3750 spin_lock_irqsave(&rxq
->lock
, flags
);
3751 while (!list_empty(&rxq
->rx_used
)) {
3752 element
= rxq
->rx_used
.next
;
3753 rxb
= list_entry(element
, struct iwl3945_rx_mem_buffer
, list
);
3755 /* Alloc a new receive buffer */
3757 alloc_skb(IWL_RX_BUF_SIZE
, __GFP_NOWARN
| GFP_ATOMIC
);
3759 if (net_ratelimit())
3760 printk(KERN_CRIT DRV_NAME
3761 ": Can not allocate SKB buffers\n");
3762 /* We don't reschedule replenish work here -- we will
3763 * call the restock method and if it still needs
3764 * more buffers it will schedule replenish */
3768 /* If radiotap head is required, reserve some headroom here.
3769 * The physical head count is a variable rx_stats->phy_count.
3770 * We reserve 4 bytes here. Plus these extra bytes, the
3771 * headroom of the physical head should be enough for the
3772 * radiotap head that iwl3945 supported. See iwl3945_rt.
3774 skb_reserve(rxb
->skb
, 4);
3776 priv
->alloc_rxb_skb
++;
3779 /* Get physical address of RB/SKB */
3781 pci_map_single(priv
->pci_dev
, rxb
->skb
->data
,
3782 IWL_RX_BUF_SIZE
, PCI_DMA_FROMDEVICE
);
3783 list_add_tail(&rxb
->list
, &rxq
->rx_free
);
3786 spin_unlock_irqrestore(&rxq
->lock
, flags
);
3790 * this should be called while priv->lock is locked
3792 static void __iwl3945_rx_replenish(void *data
)
3794 struct iwl3945_priv
*priv
= data
;
3796 iwl3945_rx_allocate(priv
);
3797 iwl3945_rx_queue_restock(priv
);
3801 void iwl3945_rx_replenish(void *data
)
3803 struct iwl3945_priv
*priv
= data
;
3804 unsigned long flags
;
3806 iwl3945_rx_allocate(priv
);
3808 spin_lock_irqsave(&priv
->lock
, flags
);
3809 iwl3945_rx_queue_restock(priv
);
3810 spin_unlock_irqrestore(&priv
->lock
, flags
);
3813 /* Assumes that the skb field of the buffers in 'pool' is kept accurate.
3814 * If an SKB has been detached, the POOL needs to have its SKB set to NULL
3815 * This free routine walks the list of POOL entries and if SKB is set to
3816 * non NULL it is unmapped and freed
3818 static void iwl3945_rx_queue_free(struct iwl3945_priv
*priv
, struct iwl3945_rx_queue
*rxq
)
3821 for (i
= 0; i
< RX_QUEUE_SIZE
+ RX_FREE_BUFFERS
; i
++) {
3822 if (rxq
->pool
[i
].skb
!= NULL
) {
3823 pci_unmap_single(priv
->pci_dev
,
3824 rxq
->pool
[i
].dma_addr
,
3825 IWL_RX_BUF_SIZE
, PCI_DMA_FROMDEVICE
);
3826 dev_kfree_skb(rxq
->pool
[i
].skb
);
3830 pci_free_consistent(priv
->pci_dev
, 4 * RX_QUEUE_SIZE
, rxq
->bd
,
3835 int iwl3945_rx_queue_alloc(struct iwl3945_priv
*priv
)
3837 struct iwl3945_rx_queue
*rxq
= &priv
->rxq
;
3838 struct pci_dev
*dev
= priv
->pci_dev
;
3841 spin_lock_init(&rxq
->lock
);
3842 INIT_LIST_HEAD(&rxq
->rx_free
);
3843 INIT_LIST_HEAD(&rxq
->rx_used
);
3845 /* Alloc the circular buffer of Read Buffer Descriptors (RBDs) */
3846 rxq
->bd
= pci_alloc_consistent(dev
, 4 * RX_QUEUE_SIZE
, &rxq
->dma_addr
);
3850 /* Fill the rx_used queue with _all_ of the Rx buffers */
3851 for (i
= 0; i
< RX_FREE_BUFFERS
+ RX_QUEUE_SIZE
; i
++)
3852 list_add_tail(&rxq
->pool
[i
].list
, &rxq
->rx_used
);
3854 /* Set us so that we have processed and used all buffers, but have
3855 * not restocked the Rx queue with fresh buffers */
3856 rxq
->read
= rxq
->write
= 0;
3857 rxq
->free_count
= 0;
3858 rxq
->need_update
= 0;
3862 void iwl3945_rx_queue_reset(struct iwl3945_priv
*priv
, struct iwl3945_rx_queue
*rxq
)
3864 unsigned long flags
;
3866 spin_lock_irqsave(&rxq
->lock
, flags
);
3867 INIT_LIST_HEAD(&rxq
->rx_free
);
3868 INIT_LIST_HEAD(&rxq
->rx_used
);
3869 /* Fill the rx_used queue with _all_ of the Rx buffers */
3870 for (i
= 0; i
< RX_FREE_BUFFERS
+ RX_QUEUE_SIZE
; i
++) {
3871 /* In the reset function, these buffers may have been allocated
3872 * to an SKB, so we need to unmap and free potential storage */
3873 if (rxq
->pool
[i
].skb
!= NULL
) {
3874 pci_unmap_single(priv
->pci_dev
,
3875 rxq
->pool
[i
].dma_addr
,
3876 IWL_RX_BUF_SIZE
, PCI_DMA_FROMDEVICE
);
3877 priv
->alloc_rxb_skb
--;
3878 dev_kfree_skb(rxq
->pool
[i
].skb
);
3879 rxq
->pool
[i
].skb
= NULL
;
3881 list_add_tail(&rxq
->pool
[i
].list
, &rxq
->rx_used
);
3884 /* Set us so that we have processed and used all buffers, but have
3885 * not restocked the Rx queue with fresh buffers */
3886 rxq
->read
= rxq
->write
= 0;
3887 rxq
->free_count
= 0;
3888 spin_unlock_irqrestore(&rxq
->lock
, flags
);
3891 /* Convert linear signal-to-noise ratio into dB */
3892 static u8 ratio2dB
[100] = {
3893 /* 0 1 2 3 4 5 6 7 8 9 */
3894 0, 0, 6, 10, 12, 14, 16, 17, 18, 19, /* 00 - 09 */
3895 20, 21, 22, 22, 23, 23, 24, 25, 26, 26, /* 10 - 19 */
3896 26, 26, 26, 27, 27, 28, 28, 28, 29, 29, /* 20 - 29 */
3897 29, 30, 30, 30, 31, 31, 31, 31, 32, 32, /* 30 - 39 */
3898 32, 32, 32, 33, 33, 33, 33, 33, 34, 34, /* 40 - 49 */
3899 34, 34, 34, 34, 35, 35, 35, 35, 35, 35, /* 50 - 59 */
3900 36, 36, 36, 36, 36, 36, 36, 37, 37, 37, /* 60 - 69 */
3901 37, 37, 37, 37, 37, 38, 38, 38, 38, 38, /* 70 - 79 */
3902 38, 38, 38, 38, 38, 39, 39, 39, 39, 39, /* 80 - 89 */
3903 39, 39, 39, 39, 39, 40, 40, 40, 40, 40 /* 90 - 99 */
3906 /* Calculates a relative dB value from a ratio of linear
3907 * (i.e. not dB) signal levels.
3908 * Conversion assumes that levels are voltages (20*log), not powers (10*log). */
3909 int iwl3945_calc_db_from_ratio(int sig_ratio
)
3911 /* 1000:1 or higher just report as 60 dB */
3912 if (sig_ratio
>= 1000)
3915 /* 100:1 or higher, divide by 10 and use table,
3916 * add 20 dB to make up for divide by 10 */
3917 if (sig_ratio
>= 100)
3918 return (20 + (int)ratio2dB
[sig_ratio
/10]);
3920 /* We shouldn't see this */
3924 /* Use table for ratios 1:1 - 99:1 */
3925 return (int)ratio2dB
[sig_ratio
];
3928 #define PERFECT_RSSI (-20) /* dBm */
3929 #define WORST_RSSI (-95) /* dBm */
3930 #define RSSI_RANGE (PERFECT_RSSI - WORST_RSSI)
3932 /* Calculate an indication of rx signal quality (a percentage, not dBm!).
3933 * See http://www.ces.clemson.edu/linux/signal_quality.shtml for info
3934 * about formulas used below. */
3935 int iwl3945_calc_sig_qual(int rssi_dbm
, int noise_dbm
)
3938 int degradation
= PERFECT_RSSI
- rssi_dbm
;
3940 /* If we get a noise measurement, use signal-to-noise ratio (SNR)
3941 * as indicator; formula is (signal dbm - noise dbm).
3942 * SNR at or above 40 is a great signal (100%).
3943 * Below that, scale to fit SNR of 0 - 40 dB within 0 - 100% indicator.
3944 * Weakest usable signal is usually 10 - 15 dB SNR. */
3946 if (rssi_dbm
- noise_dbm
>= 40)
3948 else if (rssi_dbm
< noise_dbm
)
3950 sig_qual
= ((rssi_dbm
- noise_dbm
) * 5) / 2;
3952 /* Else use just the signal level.
3953 * This formula is a least squares fit of data points collected and
3954 * compared with a reference system that had a percentage (%) display
3955 * for signal quality. */
3957 sig_qual
= (100 * (RSSI_RANGE
* RSSI_RANGE
) - degradation
*
3958 (15 * RSSI_RANGE
+ 62 * degradation
)) /
3959 (RSSI_RANGE
* RSSI_RANGE
);
3963 else if (sig_qual
< 1)
3970 * iwl3945_rx_handle - Main entry function for receiving responses from uCode
3972 * Uses the priv->rx_handlers callback function array to invoke
3973 * the appropriate handlers, including command responses,
3974 * frame-received notifications, and other notifications.
3976 static void iwl3945_rx_handle(struct iwl3945_priv
*priv
)
3978 struct iwl3945_rx_mem_buffer
*rxb
;
3979 struct iwl3945_rx_packet
*pkt
;
3980 struct iwl3945_rx_queue
*rxq
= &priv
->rxq
;
3983 unsigned long flags
;
3987 /* uCode's read index (stored in shared DRAM) indicates the last Rx
3988 * buffer that the driver may process (last buffer filled by ucode). */
3989 r
= iwl3945_hw_get_rx_read(priv
);
3992 if (iwl3945_rx_queue_space(rxq
) > (RX_QUEUE_SIZE
/ 2))
3994 /* Rx interrupt, but nothing sent from uCode */
3996 IWL_DEBUG(IWL_DL_RX
| IWL_DL_ISR
, "r = %d, i = %d\n", r
, i
);
3999 rxb
= rxq
->queue
[i
];
4001 /* If an RXB doesn't have a Rx queue slot associated with it,
4002 * then a bug has been introduced in the queue refilling
4003 * routines -- catch it here */
4004 BUG_ON(rxb
== NULL
);
4006 rxq
->queue
[i
] = NULL
;
4008 pci_dma_sync_single_for_cpu(priv
->pci_dev
, rxb
->dma_addr
,
4010 PCI_DMA_FROMDEVICE
);
4011 pkt
= (struct iwl3945_rx_packet
*)rxb
->skb
->data
;
4013 /* Reclaim a command buffer only if this packet is a response
4014 * to a (driver-originated) command.
4015 * If the packet (e.g. Rx frame) originated from uCode,
4016 * there is no command buffer to reclaim.
4017 * Ucode should set SEQ_RX_FRAME bit if ucode-originated,
4018 * but apparently a few don't get set; catch them here. */
4019 reclaim
= !(pkt
->hdr
.sequence
& SEQ_RX_FRAME
) &&
4020 (pkt
->hdr
.cmd
!= STATISTICS_NOTIFICATION
) &&
4021 (pkt
->hdr
.cmd
!= REPLY_TX
);
4023 /* Based on type of command response or notification,
4024 * handle those that need handling via function in
4025 * rx_handlers table. See iwl3945_setup_rx_handlers() */
4026 if (priv
->rx_handlers
[pkt
->hdr
.cmd
]) {
4027 IWL_DEBUG(IWL_DL_HOST_COMMAND
| IWL_DL_RX
| IWL_DL_ISR
,
4028 "r = %d, i = %d, %s, 0x%02x\n", r
, i
,
4029 get_cmd_string(pkt
->hdr
.cmd
), pkt
->hdr
.cmd
);
4030 priv
->rx_handlers
[pkt
->hdr
.cmd
] (priv
, rxb
);
4032 /* No handling needed */
4033 IWL_DEBUG(IWL_DL_HOST_COMMAND
| IWL_DL_RX
| IWL_DL_ISR
,
4034 "r %d i %d No handler needed for %s, 0x%02x\n",
4035 r
, i
, get_cmd_string(pkt
->hdr
.cmd
),
4040 /* Invoke any callbacks, transfer the skb to caller, and
4041 * fire off the (possibly) blocking iwl3945_send_cmd()
4042 * as we reclaim the driver command queue */
4043 if (rxb
&& rxb
->skb
)
4044 iwl3945_tx_cmd_complete(priv
, rxb
);
4046 IWL_WARNING("Claim null rxb?\n");
4049 /* For now we just don't re-use anything. We can tweak this
4050 * later to try and re-use notification packets and SKBs that
4051 * fail to Rx correctly */
4052 if (rxb
->skb
!= NULL
) {
4053 priv
->alloc_rxb_skb
--;
4054 dev_kfree_skb_any(rxb
->skb
);
4058 pci_unmap_single(priv
->pci_dev
, rxb
->dma_addr
,
4059 IWL_RX_BUF_SIZE
, PCI_DMA_FROMDEVICE
);
4060 spin_lock_irqsave(&rxq
->lock
, flags
);
4061 list_add_tail(&rxb
->list
, &priv
->rxq
.rx_used
);
4062 spin_unlock_irqrestore(&rxq
->lock
, flags
);
4063 i
= (i
+ 1) & RX_QUEUE_MASK
;
4064 /* If there are a lot of unused frames,
4065 * restock the Rx queue so ucode won't assert. */
4070 __iwl3945_rx_replenish(priv
);
4076 /* Backtrack one entry */
4078 iwl3945_rx_queue_restock(priv
);
4082 * iwl3945_tx_queue_update_write_ptr - Send new write index to hardware
4084 static int iwl3945_tx_queue_update_write_ptr(struct iwl3945_priv
*priv
,
4085 struct iwl3945_tx_queue
*txq
)
4089 int txq_id
= txq
->q
.id
;
4091 if (txq
->need_update
== 0)
4094 /* if we're trying to save power */
4095 if (test_bit(STATUS_POWER_PMI
, &priv
->status
)) {
4096 /* wake up nic if it's powered down ...
4097 * uCode will wake up, and interrupt us again, so next
4098 * time we'll skip this part. */
4099 reg
= iwl3945_read32(priv
, CSR_UCODE_DRV_GP1
);
4101 if (reg
& CSR_UCODE_DRV_GP1_BIT_MAC_SLEEP
) {
4102 IWL_DEBUG_INFO("Requesting wakeup, GP1 = 0x%x\n", reg
);
4103 iwl3945_set_bit(priv
, CSR_GP_CNTRL
,
4104 CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ
);
4108 /* restore this queue's parameters in nic hardware. */
4109 rc
= iwl3945_grab_nic_access(priv
);
4112 iwl3945_write_direct32(priv
, HBUS_TARG_WRPTR
,
4113 txq
->q
.write_ptr
| (txq_id
<< 8));
4114 iwl3945_release_nic_access(priv
);
4116 /* else not in power-save mode, uCode will never sleep when we're
4117 * trying to tx (during RFKILL, we're not trying to tx). */
4119 iwl3945_write32(priv
, HBUS_TARG_WRPTR
,
4120 txq
->q
.write_ptr
| (txq_id
<< 8));
4122 txq
->need_update
= 0;
4127 #ifdef CONFIG_IWL3945_DEBUG
4128 static void iwl3945_print_rx_config_cmd(struct iwl3945_rxon_cmd
*rxon
)
4130 DECLARE_MAC_BUF(mac
);
4132 IWL_DEBUG_RADIO("RX CONFIG:\n");
4133 iwl3945_print_hex_dump(IWL_DL_RADIO
, (u8
*) rxon
, sizeof(*rxon
));
4134 IWL_DEBUG_RADIO("u16 channel: 0x%x\n", le16_to_cpu(rxon
->channel
));
4135 IWL_DEBUG_RADIO("u32 flags: 0x%08X\n", le32_to_cpu(rxon
->flags
));
4136 IWL_DEBUG_RADIO("u32 filter_flags: 0x%08x\n",
4137 le32_to_cpu(rxon
->filter_flags
));
4138 IWL_DEBUG_RADIO("u8 dev_type: 0x%x\n", rxon
->dev_type
);
4139 IWL_DEBUG_RADIO("u8 ofdm_basic_rates: 0x%02x\n",
4140 rxon
->ofdm_basic_rates
);
4141 IWL_DEBUG_RADIO("u8 cck_basic_rates: 0x%02x\n", rxon
->cck_basic_rates
);
4142 IWL_DEBUG_RADIO("u8[6] node_addr: %s\n",
4143 print_mac(mac
, rxon
->node_addr
));
4144 IWL_DEBUG_RADIO("u8[6] bssid_addr: %s\n",
4145 print_mac(mac
, rxon
->bssid_addr
));
4146 IWL_DEBUG_RADIO("u16 assoc_id: 0x%x\n", le16_to_cpu(rxon
->assoc_id
));
4150 static void iwl3945_enable_interrupts(struct iwl3945_priv
*priv
)
4152 IWL_DEBUG_ISR("Enabling interrupts\n");
4153 set_bit(STATUS_INT_ENABLED
, &priv
->status
);
4154 iwl3945_write32(priv
, CSR_INT_MASK
, CSR_INI_SET_MASK
);
4158 /* call this function to flush any scheduled tasklet */
4159 static inline void iwl_synchronize_irq(struct iwl3945_priv
*priv
)
4161 /* wait to make sure we flush pedding tasklet*/
4162 synchronize_irq(priv
->pci_dev
->irq
);
4163 tasklet_kill(&priv
->irq_tasklet
);
4167 static inline void iwl3945_disable_interrupts(struct iwl3945_priv
*priv
)
4169 clear_bit(STATUS_INT_ENABLED
, &priv
->status
);
4171 /* disable interrupts from uCode/NIC to host */
4172 iwl3945_write32(priv
, CSR_INT_MASK
, 0x00000000);
4174 /* acknowledge/clear/reset any interrupts still pending
4175 * from uCode or flow handler (Rx/Tx DMA) */
4176 iwl3945_write32(priv
, CSR_INT
, 0xffffffff);
4177 iwl3945_write32(priv
, CSR_FH_INT_STATUS
, 0xffffffff);
4178 IWL_DEBUG_ISR("Disabled interrupts\n");
4181 static const char *desc_lookup(int i
)
4189 return "BAD_CHECKSUM";
4191 return "NMI_INTERRUPT";
4195 return "FATAL_ERROR";
4201 #define ERROR_START_OFFSET (1 * sizeof(u32))
4202 #define ERROR_ELEM_SIZE (7 * sizeof(u32))
4204 static void iwl3945_dump_nic_error_log(struct iwl3945_priv
*priv
)
4207 u32 desc
, time
, count
, base
, data1
;
4208 u32 blink1
, blink2
, ilink1
, ilink2
;
4211 base
= le32_to_cpu(priv
->card_alive
.error_event_table_ptr
);
4213 if (!iwl3945_hw_valid_rtc_data_addr(base
)) {
4214 IWL_ERROR("Not valid error log pointer 0x%08X\n", base
);
4218 rc
= iwl3945_grab_nic_access(priv
);
4220 IWL_WARNING("Can not read from adapter at this time.\n");
4224 count
= iwl3945_read_targ_mem(priv
, base
);
4226 if (ERROR_START_OFFSET
<= count
* ERROR_ELEM_SIZE
) {
4227 IWL_ERROR("Start IWL Error Log Dump:\n");
4228 IWL_ERROR("Status: 0x%08lX, count: %d\n", priv
->status
, count
);
4231 IWL_ERROR("Desc Time asrtPC blink2 "
4232 "ilink1 nmiPC Line\n");
4233 for (i
= ERROR_START_OFFSET
;
4234 i
< (count
* ERROR_ELEM_SIZE
) + ERROR_START_OFFSET
;
4235 i
+= ERROR_ELEM_SIZE
) {
4236 desc
= iwl3945_read_targ_mem(priv
, base
+ i
);
4238 iwl3945_read_targ_mem(priv
, base
+ i
+ 1 * sizeof(u32
));
4240 iwl3945_read_targ_mem(priv
, base
+ i
+ 2 * sizeof(u32
));
4242 iwl3945_read_targ_mem(priv
, base
+ i
+ 3 * sizeof(u32
));
4244 iwl3945_read_targ_mem(priv
, base
+ i
+ 4 * sizeof(u32
));
4246 iwl3945_read_targ_mem(priv
, base
+ i
+ 5 * sizeof(u32
));
4248 iwl3945_read_targ_mem(priv
, base
+ i
+ 6 * sizeof(u32
));
4251 ("%-13s (#%d) %010u 0x%05X 0x%05X 0x%05X 0x%05X %u\n\n",
4252 desc_lookup(desc
), desc
, time
, blink1
, blink2
,
4253 ilink1
, ilink2
, data1
);
4256 iwl3945_release_nic_access(priv
);
4260 #define EVENT_START_OFFSET (6 * sizeof(u32))
4263 * iwl3945_print_event_log - Dump error event log to syslog
4265 * NOTE: Must be called with iwl3945_grab_nic_access() already obtained!
4267 static void iwl3945_print_event_log(struct iwl3945_priv
*priv
, u32 start_idx
,
4268 u32 num_events
, u32 mode
)
4271 u32 base
; /* SRAM byte address of event log header */
4272 u32 event_size
; /* 2 u32s, or 3 u32s if timestamp recorded */
4273 u32 ptr
; /* SRAM byte address of log data */
4274 u32 ev
, time
, data
; /* event log data */
4276 if (num_events
== 0)
4279 base
= le32_to_cpu(priv
->card_alive
.log_event_table_ptr
);
4282 event_size
= 2 * sizeof(u32
);
4284 event_size
= 3 * sizeof(u32
);
4286 ptr
= base
+ EVENT_START_OFFSET
+ (start_idx
* event_size
);
4288 /* "time" is actually "data" for mode 0 (no timestamp).
4289 * place event id # at far right for easier visual parsing. */
4290 for (i
= 0; i
< num_events
; i
++) {
4291 ev
= iwl3945_read_targ_mem(priv
, ptr
);
4293 time
= iwl3945_read_targ_mem(priv
, ptr
);
4296 IWL_ERROR("0x%08x\t%04u\n", time
, ev
); /* data, ev */
4298 data
= iwl3945_read_targ_mem(priv
, ptr
);
4300 IWL_ERROR("%010u\t0x%08x\t%04u\n", time
, data
, ev
);
4305 static void iwl3945_dump_nic_event_log(struct iwl3945_priv
*priv
)
4308 u32 base
; /* SRAM byte address of event log header */
4309 u32 capacity
; /* event log capacity in # entries */
4310 u32 mode
; /* 0 - no timestamp, 1 - timestamp recorded */
4311 u32 num_wraps
; /* # times uCode wrapped to top of log */
4312 u32 next_entry
; /* index of next entry to be written by uCode */
4313 u32 size
; /* # entries that we'll print */
4315 base
= le32_to_cpu(priv
->card_alive
.log_event_table_ptr
);
4316 if (!iwl3945_hw_valid_rtc_data_addr(base
)) {
4317 IWL_ERROR("Invalid event log pointer 0x%08X\n", base
);
4321 rc
= iwl3945_grab_nic_access(priv
);
4323 IWL_WARNING("Can not read from adapter at this time.\n");
4327 /* event log header */
4328 capacity
= iwl3945_read_targ_mem(priv
, base
);
4329 mode
= iwl3945_read_targ_mem(priv
, base
+ (1 * sizeof(u32
)));
4330 num_wraps
= iwl3945_read_targ_mem(priv
, base
+ (2 * sizeof(u32
)));
4331 next_entry
= iwl3945_read_targ_mem(priv
, base
+ (3 * sizeof(u32
)));
4333 size
= num_wraps
? capacity
: next_entry
;
4335 /* bail out if nothing in log */
4337 IWL_ERROR("Start IWL Event Log Dump: nothing in log\n");
4338 iwl3945_release_nic_access(priv
);
4342 IWL_ERROR("Start IWL Event Log Dump: display count %d, wraps %d\n",
4345 /* if uCode has wrapped back to top of log, start at the oldest entry,
4346 * i.e the next one that uCode would fill. */
4348 iwl3945_print_event_log(priv
, next_entry
,
4349 capacity
- next_entry
, mode
);
4351 /* (then/else) start at top of log */
4352 iwl3945_print_event_log(priv
, 0, next_entry
, mode
);
4354 iwl3945_release_nic_access(priv
);
4358 * iwl3945_irq_handle_error - called for HW or SW error interrupt from card
4360 static void iwl3945_irq_handle_error(struct iwl3945_priv
*priv
)
4362 /* Set the FW error flag -- cleared on iwl3945_down */
4363 set_bit(STATUS_FW_ERROR
, &priv
->status
);
4365 /* Cancel currently queued command. */
4366 clear_bit(STATUS_HCMD_ACTIVE
, &priv
->status
);
4368 #ifdef CONFIG_IWL3945_DEBUG
4369 if (iwl3945_debug_level
& IWL_DL_FW_ERRORS
) {
4370 iwl3945_dump_nic_error_log(priv
);
4371 iwl3945_dump_nic_event_log(priv
);
4372 iwl3945_print_rx_config_cmd(&priv
->staging_rxon
);
4376 wake_up_interruptible(&priv
->wait_command_queue
);
4378 /* Keep the restart process from trying to send host
4379 * commands by clearing the INIT status bit */
4380 clear_bit(STATUS_READY
, &priv
->status
);
4382 if (!test_bit(STATUS_EXIT_PENDING
, &priv
->status
)) {
4383 IWL_DEBUG(IWL_DL_INFO
| IWL_DL_FW_ERRORS
,
4384 "Restarting adapter due to uCode error.\n");
4386 if (iwl3945_is_associated(priv
)) {
4387 memcpy(&priv
->recovery_rxon
, &priv
->active_rxon
,
4388 sizeof(priv
->recovery_rxon
));
4389 priv
->error_recovering
= 1;
4391 queue_work(priv
->workqueue
, &priv
->restart
);
4395 static void iwl3945_error_recovery(struct iwl3945_priv
*priv
)
4397 unsigned long flags
;
4399 memcpy(&priv
->staging_rxon
, &priv
->recovery_rxon
,
4400 sizeof(priv
->staging_rxon
));
4401 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
4402 iwl3945_commit_rxon(priv
);
4404 iwl3945_add_station(priv
, priv
->bssid
, 1, 0);
4406 spin_lock_irqsave(&priv
->lock
, flags
);
4407 priv
->assoc_id
= le16_to_cpu(priv
->staging_rxon
.assoc_id
);
4408 priv
->error_recovering
= 0;
4409 spin_unlock_irqrestore(&priv
->lock
, flags
);
4412 static void iwl3945_irq_tasklet(struct iwl3945_priv
*priv
)
4414 u32 inta
, handled
= 0;
4416 unsigned long flags
;
4417 #ifdef CONFIG_IWL3945_DEBUG
4421 spin_lock_irqsave(&priv
->lock
, flags
);
4423 /* Ack/clear/reset pending uCode interrupts.
4424 * Note: Some bits in CSR_INT are "OR" of bits in CSR_FH_INT_STATUS,
4425 * and will clear only when CSR_FH_INT_STATUS gets cleared. */
4426 inta
= iwl3945_read32(priv
, CSR_INT
);
4427 iwl3945_write32(priv
, CSR_INT
, inta
);
4429 /* Ack/clear/reset pending flow-handler (DMA) interrupts.
4430 * Any new interrupts that happen after this, either while we're
4431 * in this tasklet, or later, will show up in next ISR/tasklet. */
4432 inta_fh
= iwl3945_read32(priv
, CSR_FH_INT_STATUS
);
4433 iwl3945_write32(priv
, CSR_FH_INT_STATUS
, inta_fh
);
4435 #ifdef CONFIG_IWL3945_DEBUG
4436 if (iwl3945_debug_level
& IWL_DL_ISR
) {
4437 /* just for debug */
4438 inta_mask
= iwl3945_read32(priv
, CSR_INT_MASK
);
4439 IWL_DEBUG_ISR("inta 0x%08x, enabled 0x%08x, fh 0x%08x\n",
4440 inta
, inta_mask
, inta_fh
);
4444 /* Since CSR_INT and CSR_FH_INT_STATUS reads and clears are not
4445 * atomic, make sure that inta covers all the interrupts that
4446 * we've discovered, even if FH interrupt came in just after
4447 * reading CSR_INT. */
4448 if (inta_fh
& CSR39_FH_INT_RX_MASK
)
4449 inta
|= CSR_INT_BIT_FH_RX
;
4450 if (inta_fh
& CSR39_FH_INT_TX_MASK
)
4451 inta
|= CSR_INT_BIT_FH_TX
;
4453 /* Now service all interrupt bits discovered above. */
4454 if (inta
& CSR_INT_BIT_HW_ERR
) {
4455 IWL_ERROR("Microcode HW error detected. Restarting.\n");
4457 /* Tell the device to stop sending interrupts */
4458 iwl3945_disable_interrupts(priv
);
4460 iwl3945_irq_handle_error(priv
);
4462 handled
|= CSR_INT_BIT_HW_ERR
;
4464 spin_unlock_irqrestore(&priv
->lock
, flags
);
4469 #ifdef CONFIG_IWL3945_DEBUG
4470 if (iwl3945_debug_level
& (IWL_DL_ISR
)) {
4471 /* NIC fires this, but we don't use it, redundant with WAKEUP */
4472 if (inta
& CSR_INT_BIT_SCD
)
4473 IWL_DEBUG_ISR("Scheduler finished to transmit "
4474 "the frame/frames.\n");
4476 /* Alive notification via Rx interrupt will do the real work */
4477 if (inta
& CSR_INT_BIT_ALIVE
)
4478 IWL_DEBUG_ISR("Alive interrupt\n");
4481 /* Safely ignore these bits for debug checks below */
4482 inta
&= ~(CSR_INT_BIT_SCD
| CSR_INT_BIT_ALIVE
);
4484 /* HW RF KILL switch toggled (4965 only) */
4485 if (inta
& CSR_INT_BIT_RF_KILL
) {
4487 if (!(iwl3945_read32(priv
, CSR_GP_CNTRL
) &
4488 CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW
))
4491 IWL_DEBUG(IWL_DL_INFO
| IWL_DL_RF_KILL
| IWL_DL_ISR
,
4492 "RF_KILL bit toggled to %s.\n",
4493 hw_rf_kill
? "disable radio":"enable radio");
4495 /* Queue restart only if RF_KILL switch was set to "kill"
4496 * when we loaded driver, and is now set to "enable".
4497 * After we're Alive, RF_KILL gets handled by
4498 * iwl3945_rx_card_state_notif() */
4499 if (!hw_rf_kill
&& !test_bit(STATUS_ALIVE
, &priv
->status
)) {
4500 clear_bit(STATUS_RF_KILL_HW
, &priv
->status
);
4501 queue_work(priv
->workqueue
, &priv
->restart
);
4504 handled
|= CSR_INT_BIT_RF_KILL
;
4507 /* Chip got too hot and stopped itself (4965 only) */
4508 if (inta
& CSR_INT_BIT_CT_KILL
) {
4509 IWL_ERROR("Microcode CT kill error detected.\n");
4510 handled
|= CSR_INT_BIT_CT_KILL
;
4513 /* Error detected by uCode */
4514 if (inta
& CSR_INT_BIT_SW_ERR
) {
4515 IWL_ERROR("Microcode SW error detected. Restarting 0x%X.\n",
4517 iwl3945_irq_handle_error(priv
);
4518 handled
|= CSR_INT_BIT_SW_ERR
;
4521 /* uCode wakes up after power-down sleep */
4522 if (inta
& CSR_INT_BIT_WAKEUP
) {
4523 IWL_DEBUG_ISR("Wakeup interrupt\n");
4524 iwl3945_rx_queue_update_write_ptr(priv
, &priv
->rxq
);
4525 iwl3945_tx_queue_update_write_ptr(priv
, &priv
->txq
[0]);
4526 iwl3945_tx_queue_update_write_ptr(priv
, &priv
->txq
[1]);
4527 iwl3945_tx_queue_update_write_ptr(priv
, &priv
->txq
[2]);
4528 iwl3945_tx_queue_update_write_ptr(priv
, &priv
->txq
[3]);
4529 iwl3945_tx_queue_update_write_ptr(priv
, &priv
->txq
[4]);
4530 iwl3945_tx_queue_update_write_ptr(priv
, &priv
->txq
[5]);
4532 handled
|= CSR_INT_BIT_WAKEUP
;
4535 /* All uCode command responses, including Tx command responses,
4536 * Rx "responses" (frame-received notification), and other
4537 * notifications from uCode come through here*/
4538 if (inta
& (CSR_INT_BIT_FH_RX
| CSR_INT_BIT_SW_RX
)) {
4539 iwl3945_rx_handle(priv
);
4540 handled
|= (CSR_INT_BIT_FH_RX
| CSR_INT_BIT_SW_RX
);
4543 if (inta
& CSR_INT_BIT_FH_TX
) {
4544 IWL_DEBUG_ISR("Tx interrupt\n");
4546 iwl3945_write32(priv
, CSR_FH_INT_STATUS
, (1 << 6));
4547 if (!iwl3945_grab_nic_access(priv
)) {
4548 iwl3945_write_direct32(priv
,
4550 (ALM_FH_SRVC_CHNL
), 0x0);
4551 iwl3945_release_nic_access(priv
);
4553 handled
|= CSR_INT_BIT_FH_TX
;
4556 if (inta
& ~handled
)
4557 IWL_ERROR("Unhandled INTA bits 0x%08x\n", inta
& ~handled
);
4559 if (inta
& ~CSR_INI_SET_MASK
) {
4560 IWL_WARNING("Disabled INTA bits 0x%08x were pending\n",
4561 inta
& ~CSR_INI_SET_MASK
);
4562 IWL_WARNING(" with FH_INT = 0x%08x\n", inta_fh
);
4565 /* Re-enable all interrupts */
4566 /* only Re-enable if disabled by irq */
4567 if (test_bit(STATUS_INT_ENABLED
, &priv
->status
))
4568 iwl3945_enable_interrupts(priv
);
4570 #ifdef CONFIG_IWL3945_DEBUG
4571 if (iwl3945_debug_level
& (IWL_DL_ISR
)) {
4572 inta
= iwl3945_read32(priv
, CSR_INT
);
4573 inta_mask
= iwl3945_read32(priv
, CSR_INT_MASK
);
4574 inta_fh
= iwl3945_read32(priv
, CSR_FH_INT_STATUS
);
4575 IWL_DEBUG_ISR("End inta 0x%08x, enabled 0x%08x, fh 0x%08x, "
4576 "flags 0x%08lx\n", inta
, inta_mask
, inta_fh
, flags
);
4579 spin_unlock_irqrestore(&priv
->lock
, flags
);
4582 static irqreturn_t
iwl3945_isr(int irq
, void *data
)
4584 struct iwl3945_priv
*priv
= data
;
4585 u32 inta
, inta_mask
;
4590 spin_lock(&priv
->lock
);
4592 /* Disable (but don't clear!) interrupts here to avoid
4593 * back-to-back ISRs and sporadic interrupts from our NIC.
4594 * If we have something to service, the tasklet will re-enable ints.
4595 * If we *don't* have something, we'll re-enable before leaving here. */
4596 inta_mask
= iwl3945_read32(priv
, CSR_INT_MASK
); /* just for debug */
4597 iwl3945_write32(priv
, CSR_INT_MASK
, 0x00000000);
4599 /* Discover which interrupts are active/pending */
4600 inta
= iwl3945_read32(priv
, CSR_INT
);
4601 inta_fh
= iwl3945_read32(priv
, CSR_FH_INT_STATUS
);
4603 /* Ignore interrupt if there's nothing in NIC to service.
4604 * This may be due to IRQ shared with another device,
4605 * or due to sporadic interrupts thrown from our NIC. */
4606 if (!inta
&& !inta_fh
) {
4607 IWL_DEBUG_ISR("Ignore interrupt, inta == 0, inta_fh == 0\n");
4611 if ((inta
== 0xFFFFFFFF) || ((inta
& 0xFFFFFFF0) == 0xa5a5a5a0)) {
4612 /* Hardware disappeared */
4613 IWL_WARNING("HARDWARE GONE?? INTA == 0x%080x\n", inta
);
4617 IWL_DEBUG_ISR("ISR inta 0x%08x, enabled 0x%08x, fh 0x%08x\n",
4618 inta
, inta_mask
, inta_fh
);
4620 inta
&= ~CSR_INT_BIT_SCD
;
4622 /* iwl3945_irq_tasklet() will service interrupts and re-enable them */
4623 if (likely(inta
|| inta_fh
))
4624 tasklet_schedule(&priv
->irq_tasklet
);
4626 spin_unlock(&priv
->lock
);
4631 /* re-enable interrupts here since we don't have anything to service. */
4632 /* only Re-enable if disabled by irq */
4633 if (test_bit(STATUS_INT_ENABLED
, &priv
->status
))
4634 iwl3945_enable_interrupts(priv
);
4635 spin_unlock(&priv
->lock
);
4639 /************************** EEPROM BANDS ****************************
4641 * The iwl3945_eeprom_band definitions below provide the mapping from the
4642 * EEPROM contents to the specific channel number supported for each
4645 * For example, iwl3945_priv->eeprom.band_3_channels[4] from the band_3
4646 * definition below maps to physical channel 42 in the 5.2GHz spectrum.
4647 * The specific geography and calibration information for that channel
4648 * is contained in the eeprom map itself.
4650 * During init, we copy the eeprom information and channel map
4651 * information into priv->channel_info_24/52 and priv->channel_map_24/52
4653 * channel_map_24/52 provides the index in the channel_info array for a
4654 * given channel. We have to have two separate maps as there is channel
4655 * overlap with the 2.4GHz and 5.2GHz spectrum as seen in band_1 and
4658 * A value of 0xff stored in the channel_map indicates that the channel
4659 * is not supported by the hardware at all.
4661 * A value of 0xfe in the channel_map indicates that the channel is not
4662 * valid for Tx with the current hardware. This means that
4663 * while the system can tune and receive on a given channel, it may not
4664 * be able to associate or transmit any frames on that
4665 * channel. There is no corresponding channel information for that
4668 *********************************************************************/
4671 static const u8 iwl3945_eeprom_band_1
[14] = {
4672 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14
4676 static const u8 iwl3945_eeprom_band_2
[] = { /* 4915-5080MHz */
4677 183, 184, 185, 187, 188, 189, 192, 196, 7, 8, 11, 12, 16
4680 static const u8 iwl3945_eeprom_band_3
[] = { /* 5170-5320MHz */
4681 34, 36, 38, 40, 42, 44, 46, 48, 52, 56, 60, 64
4684 static const u8 iwl3945_eeprom_band_4
[] = { /* 5500-5700MHz */
4685 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140
4688 static const u8 iwl3945_eeprom_band_5
[] = { /* 5725-5825MHz */
4689 145, 149, 153, 157, 161, 165
4692 static void iwl3945_init_band_reference(const struct iwl3945_priv
*priv
, int band
,
4693 int *eeprom_ch_count
,
4694 const struct iwl3945_eeprom_channel
4696 const u8
**eeprom_ch_index
)
4699 case 1: /* 2.4GHz band */
4700 *eeprom_ch_count
= ARRAY_SIZE(iwl3945_eeprom_band_1
);
4701 *eeprom_ch_info
= priv
->eeprom
.band_1_channels
;
4702 *eeprom_ch_index
= iwl3945_eeprom_band_1
;
4704 case 2: /* 4.9GHz band */
4705 *eeprom_ch_count
= ARRAY_SIZE(iwl3945_eeprom_band_2
);
4706 *eeprom_ch_info
= priv
->eeprom
.band_2_channels
;
4707 *eeprom_ch_index
= iwl3945_eeprom_band_2
;
4709 case 3: /* 5.2GHz band */
4710 *eeprom_ch_count
= ARRAY_SIZE(iwl3945_eeprom_band_3
);
4711 *eeprom_ch_info
= priv
->eeprom
.band_3_channels
;
4712 *eeprom_ch_index
= iwl3945_eeprom_band_3
;
4714 case 4: /* 5.5GHz band */
4715 *eeprom_ch_count
= ARRAY_SIZE(iwl3945_eeprom_band_4
);
4716 *eeprom_ch_info
= priv
->eeprom
.band_4_channels
;
4717 *eeprom_ch_index
= iwl3945_eeprom_band_4
;
4719 case 5: /* 5.7GHz band */
4720 *eeprom_ch_count
= ARRAY_SIZE(iwl3945_eeprom_band_5
);
4721 *eeprom_ch_info
= priv
->eeprom
.band_5_channels
;
4722 *eeprom_ch_index
= iwl3945_eeprom_band_5
;
4731 * iwl3945_get_channel_info - Find driver's private channel info
4733 * Based on band and channel number.
4735 const struct iwl3945_channel_info
*iwl3945_get_channel_info(const struct iwl3945_priv
*priv
,
4736 enum ieee80211_band band
, u16 channel
)
4741 case IEEE80211_BAND_5GHZ
:
4742 for (i
= 14; i
< priv
->channel_count
; i
++) {
4743 if (priv
->channel_info
[i
].channel
== channel
)
4744 return &priv
->channel_info
[i
];
4748 case IEEE80211_BAND_2GHZ
:
4749 if (channel
>= 1 && channel
<= 14)
4750 return &priv
->channel_info
[channel
- 1];
4752 case IEEE80211_NUM_BANDS
:
4759 #define CHECK_AND_PRINT(x) ((eeprom_ch_info[ch].flags & EEPROM_CHANNEL_##x) \
4763 * iwl3945_init_channel_map - Set up driver's info for all possible channels
4765 static int iwl3945_init_channel_map(struct iwl3945_priv
*priv
)
4767 int eeprom_ch_count
= 0;
4768 const u8
*eeprom_ch_index
= NULL
;
4769 const struct iwl3945_eeprom_channel
*eeprom_ch_info
= NULL
;
4771 struct iwl3945_channel_info
*ch_info
;
4773 if (priv
->channel_count
) {
4774 IWL_DEBUG_INFO("Channel map already initialized.\n");
4778 if (priv
->eeprom
.version
< 0x2f) {
4779 IWL_WARNING("Unsupported EEPROM version: 0x%04X\n",
4780 priv
->eeprom
.version
);
4784 IWL_DEBUG_INFO("Initializing regulatory info from EEPROM\n");
4786 priv
->channel_count
=
4787 ARRAY_SIZE(iwl3945_eeprom_band_1
) +
4788 ARRAY_SIZE(iwl3945_eeprom_band_2
) +
4789 ARRAY_SIZE(iwl3945_eeprom_band_3
) +
4790 ARRAY_SIZE(iwl3945_eeprom_band_4
) +
4791 ARRAY_SIZE(iwl3945_eeprom_band_5
);
4793 IWL_DEBUG_INFO("Parsing data for %d channels.\n", priv
->channel_count
);
4795 priv
->channel_info
= kzalloc(sizeof(struct iwl3945_channel_info
) *
4796 priv
->channel_count
, GFP_KERNEL
);
4797 if (!priv
->channel_info
) {
4798 IWL_ERROR("Could not allocate channel_info\n");
4799 priv
->channel_count
= 0;
4803 ch_info
= priv
->channel_info
;
4805 /* Loop through the 5 EEPROM bands adding them in order to the
4806 * channel map we maintain (that contains additional information than
4807 * what just in the EEPROM) */
4808 for (band
= 1; band
<= 5; band
++) {
4810 iwl3945_init_band_reference(priv
, band
, &eeprom_ch_count
,
4811 &eeprom_ch_info
, &eeprom_ch_index
);
4813 /* Loop through each band adding each of the channels */
4814 for (ch
= 0; ch
< eeprom_ch_count
; ch
++) {
4815 ch_info
->channel
= eeprom_ch_index
[ch
];
4816 ch_info
->band
= (band
== 1) ? IEEE80211_BAND_2GHZ
:
4817 IEEE80211_BAND_5GHZ
;
4819 /* permanently store EEPROM's channel regulatory flags
4820 * and max power in channel info database. */
4821 ch_info
->eeprom
= eeprom_ch_info
[ch
];
4823 /* Copy the run-time flags so they are there even on
4824 * invalid channels */
4825 ch_info
->flags
= eeprom_ch_info
[ch
].flags
;
4827 if (!(is_channel_valid(ch_info
))) {
4828 IWL_DEBUG_INFO("Ch. %d Flags %x [%sGHz] - "
4832 is_channel_a_band(ch_info
) ?
4838 /* Initialize regulatory-based run-time data */
4839 ch_info
->max_power_avg
= ch_info
->curr_txpow
=
4840 eeprom_ch_info
[ch
].max_power_avg
;
4841 ch_info
->scan_power
= eeprom_ch_info
[ch
].max_power_avg
;
4842 ch_info
->min_power
= 0;
4844 IWL_DEBUG_INFO("Ch. %d [%sGHz] %s%s%s%s%s%s%s(0x%02x"
4845 " %ddBm): Ad-Hoc %ssupported\n",
4847 is_channel_a_band(ch_info
) ?
4849 CHECK_AND_PRINT(VALID
),
4850 CHECK_AND_PRINT(IBSS
),
4851 CHECK_AND_PRINT(ACTIVE
),
4852 CHECK_AND_PRINT(RADAR
),
4853 CHECK_AND_PRINT(WIDE
),
4854 CHECK_AND_PRINT(NARROW
),
4855 CHECK_AND_PRINT(DFS
),
4856 eeprom_ch_info
[ch
].flags
,
4857 eeprom_ch_info
[ch
].max_power_avg
,
4858 ((eeprom_ch_info
[ch
].
4859 flags
& EEPROM_CHANNEL_IBSS
)
4860 && !(eeprom_ch_info
[ch
].
4861 flags
& EEPROM_CHANNEL_RADAR
))
4864 /* Set the user_txpower_limit to the highest power
4865 * supported by any channel */
4866 if (eeprom_ch_info
[ch
].max_power_avg
>
4867 priv
->user_txpower_limit
)
4868 priv
->user_txpower_limit
=
4869 eeprom_ch_info
[ch
].max_power_avg
;
4875 /* Set up txpower settings in driver for all channels */
4876 if (iwl3945_txpower_set_from_eeprom(priv
))
4883 * iwl3945_free_channel_map - undo allocations in iwl3945_init_channel_map
4885 static void iwl3945_free_channel_map(struct iwl3945_priv
*priv
)
4887 kfree(priv
->channel_info
);
4888 priv
->channel_count
= 0;
4891 /* For active scan, listen ACTIVE_DWELL_TIME (msec) on each channel after
4892 * sending probe req. This should be set long enough to hear probe responses
4893 * from more than one AP. */
4894 #define IWL_ACTIVE_DWELL_TIME_24 (20) /* all times in msec */
4895 #define IWL_ACTIVE_DWELL_TIME_52 (10)
4897 /* For faster active scanning, scan will move to the next channel if fewer than
4898 * PLCP_QUIET_THRESH packets are heard on this channel within
4899 * ACTIVE_QUIET_TIME after sending probe request. This shortens the dwell
4900 * time if it's a quiet channel (nothing responded to our probe, and there's
4901 * no other traffic).
4902 * Disable "quiet" feature by setting PLCP_QUIET_THRESH to 0. */
4903 #define IWL_PLCP_QUIET_THRESH __constant_cpu_to_le16(1) /* packets */
4904 #define IWL_ACTIVE_QUIET_TIME __constant_cpu_to_le16(5) /* msec */
4906 /* For passive scan, listen PASSIVE_DWELL_TIME (msec) on each channel.
4907 * Must be set longer than active dwell time.
4908 * For the most reliable scan, set > AP beacon interval (typically 100msec). */
4909 #define IWL_PASSIVE_DWELL_TIME_24 (20) /* all times in msec */
4910 #define IWL_PASSIVE_DWELL_TIME_52 (10)
4911 #define IWL_PASSIVE_DWELL_BASE (100)
4912 #define IWL_CHANNEL_TUNE_TIME 5
4914 static inline u16
iwl3945_get_active_dwell_time(struct iwl3945_priv
*priv
,
4915 enum ieee80211_band band
)
4917 if (band
== IEEE80211_BAND_5GHZ
)
4918 return IWL_ACTIVE_DWELL_TIME_52
;
4920 return IWL_ACTIVE_DWELL_TIME_24
;
4923 static u16
iwl3945_get_passive_dwell_time(struct iwl3945_priv
*priv
,
4924 enum ieee80211_band band
)
4926 u16 active
= iwl3945_get_active_dwell_time(priv
, band
);
4927 u16 passive
= (band
== IEEE80211_BAND_2GHZ
) ?
4928 IWL_PASSIVE_DWELL_BASE
+ IWL_PASSIVE_DWELL_TIME_24
:
4929 IWL_PASSIVE_DWELL_BASE
+ IWL_PASSIVE_DWELL_TIME_52
;
4931 if (iwl3945_is_associated(priv
)) {
4932 /* If we're associated, we clamp the maximum passive
4933 * dwell time to be 98% of the beacon interval (minus
4934 * 2 * channel tune time) */
4935 passive
= priv
->beacon_int
;
4936 if ((passive
> IWL_PASSIVE_DWELL_BASE
) || !passive
)
4937 passive
= IWL_PASSIVE_DWELL_BASE
;
4938 passive
= (passive
* 98) / 100 - IWL_CHANNEL_TUNE_TIME
* 2;
4941 if (passive
<= active
)
4942 passive
= active
+ 1;
4947 static int iwl3945_get_channels_for_scan(struct iwl3945_priv
*priv
,
4948 enum ieee80211_band band
,
4949 u8 is_active
, u8 direct_mask
,
4950 struct iwl3945_scan_channel
*scan_ch
)
4952 const struct ieee80211_channel
*channels
= NULL
;
4953 const struct ieee80211_supported_band
*sband
;
4954 const struct iwl3945_channel_info
*ch_info
;
4955 u16 passive_dwell
= 0;
4956 u16 active_dwell
= 0;
4959 sband
= iwl3945_get_band(priv
, band
);
4963 channels
= sband
->channels
;
4965 active_dwell
= iwl3945_get_active_dwell_time(priv
, band
);
4966 passive_dwell
= iwl3945_get_passive_dwell_time(priv
, band
);
4968 for (i
= 0, added
= 0; i
< sband
->n_channels
; i
++) {
4969 if (channels
[i
].flags
& IEEE80211_CHAN_DISABLED
)
4972 scan_ch
->channel
= channels
[i
].hw_value
;
4974 ch_info
= iwl3945_get_channel_info(priv
, band
, scan_ch
->channel
);
4975 if (!is_channel_valid(ch_info
)) {
4976 IWL_DEBUG_SCAN("Channel %d is INVALID for this SKU.\n",
4981 if (!is_active
|| is_channel_passive(ch_info
) ||
4982 (channels
[i
].flags
& IEEE80211_CHAN_PASSIVE_SCAN
))
4983 scan_ch
->type
= 0; /* passive */
4985 scan_ch
->type
= 1; /* active */
4987 if (scan_ch
->type
& 1)
4988 scan_ch
->type
|= (direct_mask
<< 1);
4990 if (is_channel_narrow(ch_info
))
4991 scan_ch
->type
|= (1 << 7);
4993 scan_ch
->active_dwell
= cpu_to_le16(active_dwell
);
4994 scan_ch
->passive_dwell
= cpu_to_le16(passive_dwell
);
4996 /* Set txpower levels to defaults */
4997 scan_ch
->tpc
.dsp_atten
= 110;
4998 /* scan_pwr_info->tpc.dsp_atten; */
5000 /*scan_pwr_info->tpc.tx_gain; */
5001 if (band
== IEEE80211_BAND_5GHZ
)
5002 scan_ch
->tpc
.tx_gain
= ((1 << 5) | (3 << 3)) | 3;
5004 scan_ch
->tpc
.tx_gain
= ((1 << 5) | (5 << 3));
5005 /* NOTE: if we were doing 6Mb OFDM for scans we'd use
5007 * scan_ch->tpc.tx_gain = ((1 << 5) | (2 << 3)) | 3;
5011 IWL_DEBUG_SCAN("Scanning %d [%s %d]\n",
5013 (scan_ch
->type
& 1) ? "ACTIVE" : "PASSIVE",
5014 (scan_ch
->type
& 1) ?
5015 active_dwell
: passive_dwell
);
5021 IWL_DEBUG_SCAN("total channels to scan %d \n", added
);
5025 static void iwl3945_init_hw_rates(struct iwl3945_priv
*priv
,
5026 struct ieee80211_rate
*rates
)
5030 for (i
= 0; i
< IWL_RATE_COUNT
; i
++) {
5031 rates
[i
].bitrate
= iwl3945_rates
[i
].ieee
* 5;
5032 rates
[i
].hw_value
= i
; /* Rate scaling will work on indexes */
5033 rates
[i
].hw_value_short
= i
;
5035 if ((i
> IWL_LAST_OFDM_RATE
) || (i
< IWL_FIRST_OFDM_RATE
)) {
5037 * If CCK != 1M then set short preamble rate flag.
5039 rates
[i
].flags
|= (iwl3945_rates
[i
].plcp
== 10) ?
5040 0 : IEEE80211_RATE_SHORT_PREAMBLE
;
5046 * iwl3945_init_geos - Initialize mac80211's geo/channel info based from eeprom
5048 static int iwl3945_init_geos(struct iwl3945_priv
*priv
)
5050 struct iwl3945_channel_info
*ch
;
5051 struct ieee80211_supported_band
*sband
;
5052 struct ieee80211_channel
*channels
;
5053 struct ieee80211_channel
*geo_ch
;
5054 struct ieee80211_rate
*rates
;
5057 if (priv
->bands
[IEEE80211_BAND_2GHZ
].n_bitrates
||
5058 priv
->bands
[IEEE80211_BAND_5GHZ
].n_bitrates
) {
5059 IWL_DEBUG_INFO("Geography modes already initialized.\n");
5060 set_bit(STATUS_GEO_CONFIGURED
, &priv
->status
);
5064 channels
= kzalloc(sizeof(struct ieee80211_channel
) *
5065 priv
->channel_count
, GFP_KERNEL
);
5069 rates
= kzalloc((sizeof(struct ieee80211_rate
) * (IWL_RATE_COUNT
+ 1)),
5076 /* 5.2GHz channels start after the 2.4GHz channels */
5077 sband
= &priv
->bands
[IEEE80211_BAND_5GHZ
];
5078 sband
->channels
= &channels
[ARRAY_SIZE(iwl3945_eeprom_band_1
)];
5080 sband
->bitrates
= &rates
[IWL_FIRST_OFDM_RATE
];
5081 sband
->n_bitrates
= IWL_RATE_COUNT
- IWL_FIRST_OFDM_RATE
;
5083 sband
= &priv
->bands
[IEEE80211_BAND_2GHZ
];
5084 sband
->channels
= channels
;
5086 sband
->bitrates
= rates
;
5087 sband
->n_bitrates
= IWL_RATE_COUNT
;
5089 priv
->ieee_channels
= channels
;
5090 priv
->ieee_rates
= rates
;
5092 iwl3945_init_hw_rates(priv
, rates
);
5094 for (i
= 0; i
< priv
->channel_count
; i
++) {
5095 ch
= &priv
->channel_info
[i
];
5097 /* FIXME: might be removed if scan is OK*/
5098 if (!is_channel_valid(ch
))
5101 if (is_channel_a_band(ch
))
5102 sband
= &priv
->bands
[IEEE80211_BAND_5GHZ
];
5104 sband
= &priv
->bands
[IEEE80211_BAND_2GHZ
];
5106 geo_ch
= &sband
->channels
[sband
->n_channels
++];
5108 geo_ch
->center_freq
= ieee80211_channel_to_frequency(ch
->channel
);
5109 geo_ch
->max_power
= ch
->max_power_avg
;
5110 geo_ch
->max_antenna_gain
= 0xff;
5111 geo_ch
->hw_value
= ch
->channel
;
5113 if (is_channel_valid(ch
)) {
5114 if (!(ch
->flags
& EEPROM_CHANNEL_IBSS
))
5115 geo_ch
->flags
|= IEEE80211_CHAN_NO_IBSS
;
5117 if (!(ch
->flags
& EEPROM_CHANNEL_ACTIVE
))
5118 geo_ch
->flags
|= IEEE80211_CHAN_PASSIVE_SCAN
;
5120 if (ch
->flags
& EEPROM_CHANNEL_RADAR
)
5121 geo_ch
->flags
|= IEEE80211_CHAN_RADAR
;
5123 if (ch
->max_power_avg
> priv
->max_channel_txpower_limit
)
5124 priv
->max_channel_txpower_limit
=
5127 geo_ch
->flags
|= IEEE80211_CHAN_DISABLED
;
5130 /* Save flags for reg domain usage */
5131 geo_ch
->orig_flags
= geo_ch
->flags
;
5133 IWL_DEBUG_INFO("Channel %d Freq=%d[%sGHz] %s flag=0%X\n",
5134 ch
->channel
, geo_ch
->center_freq
,
5135 is_channel_a_band(ch
) ? "5.2" : "2.4",
5136 geo_ch
->flags
& IEEE80211_CHAN_DISABLED
?
5137 "restricted" : "valid",
5141 if ((priv
->bands
[IEEE80211_BAND_5GHZ
].n_channels
== 0) &&
5142 priv
->cfg
->sku
& IWL_SKU_A
) {
5143 printk(KERN_INFO DRV_NAME
5144 ": Incorrectly detected BG card as ABG. Please send "
5145 "your PCI ID 0x%04X:0x%04X to maintainer.\n",
5146 priv
->pci_dev
->device
, priv
->pci_dev
->subsystem_device
);
5147 priv
->cfg
->sku
&= ~IWL_SKU_A
;
5150 printk(KERN_INFO DRV_NAME
5151 ": Tunable channels: %d 802.11bg, %d 802.11a channels\n",
5152 priv
->bands
[IEEE80211_BAND_2GHZ
].n_channels
,
5153 priv
->bands
[IEEE80211_BAND_5GHZ
].n_channels
);
5155 if (priv
->bands
[IEEE80211_BAND_2GHZ
].n_channels
)
5156 priv
->hw
->wiphy
->bands
[IEEE80211_BAND_2GHZ
] =
5157 &priv
->bands
[IEEE80211_BAND_2GHZ
];
5158 if (priv
->bands
[IEEE80211_BAND_5GHZ
].n_channels
)
5159 priv
->hw
->wiphy
->bands
[IEEE80211_BAND_5GHZ
] =
5160 &priv
->bands
[IEEE80211_BAND_5GHZ
];
5162 set_bit(STATUS_GEO_CONFIGURED
, &priv
->status
);
5168 * iwl3945_free_geos - undo allocations in iwl3945_init_geos
5170 static void iwl3945_free_geos(struct iwl3945_priv
*priv
)
5172 kfree(priv
->ieee_channels
);
5173 kfree(priv
->ieee_rates
);
5174 clear_bit(STATUS_GEO_CONFIGURED
, &priv
->status
);
5177 /******************************************************************************
5179 * uCode download functions
5181 ******************************************************************************/
5183 static void iwl3945_dealloc_ucode_pci(struct iwl3945_priv
*priv
)
5185 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_code
);
5186 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_data
);
5187 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_data_backup
);
5188 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_init
);
5189 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_init_data
);
5190 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_boot
);
5194 * iwl3945_verify_inst_full - verify runtime uCode image in card vs. host,
5195 * looking at all data.
5197 static int iwl3945_verify_inst_full(struct iwl3945_priv
*priv
, __le32
* image
, u32 len
)
5204 IWL_DEBUG_INFO("ucode inst image size is %u\n", len
);
5206 rc
= iwl3945_grab_nic_access(priv
);
5210 iwl3945_write_direct32(priv
, HBUS_TARG_MEM_RADDR
, RTC_INST_LOWER_BOUND
);
5213 for (; len
> 0; len
-= sizeof(u32
), image
++) {
5214 /* read data comes through single port, auto-incr addr */
5215 /* NOTE: Use the debugless read so we don't flood kernel log
5216 * if IWL_DL_IO is set */
5217 val
= _iwl3945_read_direct32(priv
, HBUS_TARG_MEM_RDAT
);
5218 if (val
!= le32_to_cpu(*image
)) {
5219 IWL_ERROR("uCode INST section is invalid at "
5220 "offset 0x%x, is 0x%x, s/b 0x%x\n",
5221 save_len
- len
, val
, le32_to_cpu(*image
));
5229 iwl3945_release_nic_access(priv
);
5232 IWL_DEBUG_INFO("ucode image in INSTRUCTION memory is good\n");
5239 * iwl3945_verify_inst_sparse - verify runtime uCode image in card vs. host,
5240 * using sample data 100 bytes apart. If these sample points are good,
5241 * it's a pretty good bet that everything between them is good, too.
5243 static int iwl3945_verify_inst_sparse(struct iwl3945_priv
*priv
, __le32
*image
, u32 len
)
5250 IWL_DEBUG_INFO("ucode inst image size is %u\n", len
);
5252 rc
= iwl3945_grab_nic_access(priv
);
5256 for (i
= 0; i
< len
; i
+= 100, image
+= 100/sizeof(u32
)) {
5257 /* read data comes through single port, auto-incr addr */
5258 /* NOTE: Use the debugless read so we don't flood kernel log
5259 * if IWL_DL_IO is set */
5260 iwl3945_write_direct32(priv
, HBUS_TARG_MEM_RADDR
,
5261 i
+ RTC_INST_LOWER_BOUND
);
5262 val
= _iwl3945_read_direct32(priv
, HBUS_TARG_MEM_RDAT
);
5263 if (val
!= le32_to_cpu(*image
)) {
5264 #if 0 /* Enable this if you want to see details */
5265 IWL_ERROR("uCode INST section is invalid at "
5266 "offset 0x%x, is 0x%x, s/b 0x%x\n",
5276 iwl3945_release_nic_access(priv
);
5283 * iwl3945_verify_ucode - determine which instruction image is in SRAM,
5284 * and verify its contents
5286 static int iwl3945_verify_ucode(struct iwl3945_priv
*priv
)
5293 image
= (__le32
*)priv
->ucode_boot
.v_addr
;
5294 len
= priv
->ucode_boot
.len
;
5295 rc
= iwl3945_verify_inst_sparse(priv
, image
, len
);
5297 IWL_DEBUG_INFO("Bootstrap uCode is good in inst SRAM\n");
5301 /* Try initialize */
5302 image
= (__le32
*)priv
->ucode_init
.v_addr
;
5303 len
= priv
->ucode_init
.len
;
5304 rc
= iwl3945_verify_inst_sparse(priv
, image
, len
);
5306 IWL_DEBUG_INFO("Initialize uCode is good in inst SRAM\n");
5310 /* Try runtime/protocol */
5311 image
= (__le32
*)priv
->ucode_code
.v_addr
;
5312 len
= priv
->ucode_code
.len
;
5313 rc
= iwl3945_verify_inst_sparse(priv
, image
, len
);
5315 IWL_DEBUG_INFO("Runtime uCode is good in inst SRAM\n");
5319 IWL_ERROR("NO VALID UCODE IMAGE IN INSTRUCTION SRAM!!\n");
5321 /* Since nothing seems to match, show first several data entries in
5322 * instruction SRAM, so maybe visual inspection will give a clue.
5323 * Selection of bootstrap image (vs. other images) is arbitrary. */
5324 image
= (__le32
*)priv
->ucode_boot
.v_addr
;
5325 len
= priv
->ucode_boot
.len
;
5326 rc
= iwl3945_verify_inst_full(priv
, image
, len
);
5332 /* check contents of special bootstrap uCode SRAM */
5333 static int iwl3945_verify_bsm(struct iwl3945_priv
*priv
)
5335 __le32
*image
= priv
->ucode_boot
.v_addr
;
5336 u32 len
= priv
->ucode_boot
.len
;
5340 IWL_DEBUG_INFO("Begin verify bsm\n");
5342 /* verify BSM SRAM contents */
5343 val
= iwl3945_read_prph(priv
, BSM_WR_DWCOUNT_REG
);
5344 for (reg
= BSM_SRAM_LOWER_BOUND
;
5345 reg
< BSM_SRAM_LOWER_BOUND
+ len
;
5346 reg
+= sizeof(u32
), image
++) {
5347 val
= iwl3945_read_prph(priv
, reg
);
5348 if (val
!= le32_to_cpu(*image
)) {
5349 IWL_ERROR("BSM uCode verification failed at "
5350 "addr 0x%08X+%u (of %u), is 0x%x, s/b 0x%x\n",
5351 BSM_SRAM_LOWER_BOUND
,
5352 reg
- BSM_SRAM_LOWER_BOUND
, len
,
5353 val
, le32_to_cpu(*image
));
5358 IWL_DEBUG_INFO("BSM bootstrap uCode image OK\n");
5364 * iwl3945_load_bsm - Load bootstrap instructions
5368 * The Bootstrap State Machine (BSM) stores a short bootstrap uCode program
5369 * in special SRAM that does not power down during RFKILL. When powering back
5370 * up after power-saving sleeps (or during initial uCode load), the BSM loads
5371 * the bootstrap program into the on-board processor, and starts it.
5373 * The bootstrap program loads (via DMA) instructions and data for a new
5374 * program from host DRAM locations indicated by the host driver in the
5375 * BSM_DRAM_* registers. Once the new program is loaded, it starts
5378 * When initializing the NIC, the host driver points the BSM to the
5379 * "initialize" uCode image. This uCode sets up some internal data, then
5380 * notifies host via "initialize alive" that it is complete.
5382 * The host then replaces the BSM_DRAM_* pointer values to point to the
5383 * normal runtime uCode instructions and a backup uCode data cache buffer
5384 * (filled initially with starting data values for the on-board processor),
5385 * then triggers the "initialize" uCode to load and launch the runtime uCode,
5386 * which begins normal operation.
5388 * When doing a power-save shutdown, runtime uCode saves data SRAM into
5389 * the backup data cache in DRAM before SRAM is powered down.
5391 * When powering back up, the BSM loads the bootstrap program. This reloads
5392 * the runtime uCode instructions and the backup data cache into SRAM,
5393 * and re-launches the runtime uCode from where it left off.
5395 static int iwl3945_load_bsm(struct iwl3945_priv
*priv
)
5397 __le32
*image
= priv
->ucode_boot
.v_addr
;
5398 u32 len
= priv
->ucode_boot
.len
;
5408 IWL_DEBUG_INFO("Begin load bsm\n");
5410 /* make sure bootstrap program is no larger than BSM's SRAM size */
5411 if (len
> IWL_MAX_BSM_SIZE
)
5414 /* Tell bootstrap uCode where to find the "Initialize" uCode
5415 * in host DRAM ... host DRAM physical address bits 31:0 for 3945.
5416 * NOTE: iwl3945_initialize_alive_start() will replace these values,
5417 * after the "initialize" uCode has run, to point to
5418 * runtime/protocol instructions and backup data cache. */
5419 pinst
= priv
->ucode_init
.p_addr
;
5420 pdata
= priv
->ucode_init_data
.p_addr
;
5421 inst_len
= priv
->ucode_init
.len
;
5422 data_len
= priv
->ucode_init_data
.len
;
5424 rc
= iwl3945_grab_nic_access(priv
);
5428 iwl3945_write_prph(priv
, BSM_DRAM_INST_PTR_REG
, pinst
);
5429 iwl3945_write_prph(priv
, BSM_DRAM_DATA_PTR_REG
, pdata
);
5430 iwl3945_write_prph(priv
, BSM_DRAM_INST_BYTECOUNT_REG
, inst_len
);
5431 iwl3945_write_prph(priv
, BSM_DRAM_DATA_BYTECOUNT_REG
, data_len
);
5433 /* Fill BSM memory with bootstrap instructions */
5434 for (reg_offset
= BSM_SRAM_LOWER_BOUND
;
5435 reg_offset
< BSM_SRAM_LOWER_BOUND
+ len
;
5436 reg_offset
+= sizeof(u32
), image
++)
5437 _iwl3945_write_prph(priv
, reg_offset
,
5438 le32_to_cpu(*image
));
5440 rc
= iwl3945_verify_bsm(priv
);
5442 iwl3945_release_nic_access(priv
);
5446 /* Tell BSM to copy from BSM SRAM into instruction SRAM, when asked */
5447 iwl3945_write_prph(priv
, BSM_WR_MEM_SRC_REG
, 0x0);
5448 iwl3945_write_prph(priv
, BSM_WR_MEM_DST_REG
,
5449 RTC_INST_LOWER_BOUND
);
5450 iwl3945_write_prph(priv
, BSM_WR_DWCOUNT_REG
, len
/ sizeof(u32
));
5452 /* Load bootstrap code into instruction SRAM now,
5453 * to prepare to load "initialize" uCode */
5454 iwl3945_write_prph(priv
, BSM_WR_CTRL_REG
,
5455 BSM_WR_CTRL_REG_BIT_START
);
5457 /* Wait for load of bootstrap uCode to finish */
5458 for (i
= 0; i
< 100; i
++) {
5459 done
= iwl3945_read_prph(priv
, BSM_WR_CTRL_REG
);
5460 if (!(done
& BSM_WR_CTRL_REG_BIT_START
))
5465 IWL_DEBUG_INFO("BSM write complete, poll %d iterations\n", i
);
5467 IWL_ERROR("BSM write did not complete!\n");
5471 /* Enable future boot loads whenever power management unit triggers it
5472 * (e.g. when powering back up after power-save shutdown) */
5473 iwl3945_write_prph(priv
, BSM_WR_CTRL_REG
,
5474 BSM_WR_CTRL_REG_BIT_START_EN
);
5476 iwl3945_release_nic_access(priv
);
5481 static void iwl3945_nic_start(struct iwl3945_priv
*priv
)
5483 /* Remove all resets to allow NIC to operate */
5484 iwl3945_write32(priv
, CSR_RESET
, 0);
5488 * iwl3945_read_ucode - Read uCode images from disk file.
5490 * Copy into buffers for card to fetch via bus-mastering
5492 static int iwl3945_read_ucode(struct iwl3945_priv
*priv
)
5494 struct iwl3945_ucode
*ucode
;
5496 const struct firmware
*ucode_raw
;
5497 /* firmware file name contains uCode/driver compatibility version */
5498 const char *name
= priv
->cfg
->fw_name
;
5501 u32 ver
, inst_size
, data_size
, init_size
, init_data_size
, boot_size
;
5503 /* Ask kernel firmware_class module to get the boot firmware off disk.
5504 * request_firmware() is synchronous, file is in memory on return. */
5505 ret
= request_firmware(&ucode_raw
, name
, &priv
->pci_dev
->dev
);
5507 IWL_ERROR("%s firmware file req failed: Reason %d\n",
5512 IWL_DEBUG_INFO("Got firmware '%s' file (%zd bytes) from disk\n",
5513 name
, ucode_raw
->size
);
5515 /* Make sure that we got at least our header! */
5516 if (ucode_raw
->size
< sizeof(*ucode
)) {
5517 IWL_ERROR("File size way too small!\n");
5522 /* Data from ucode file: header followed by uCode images */
5523 ucode
= (void *)ucode_raw
->data
;
5525 ver
= le32_to_cpu(ucode
->ver
);
5526 inst_size
= le32_to_cpu(ucode
->inst_size
);
5527 data_size
= le32_to_cpu(ucode
->data_size
);
5528 init_size
= le32_to_cpu(ucode
->init_size
);
5529 init_data_size
= le32_to_cpu(ucode
->init_data_size
);
5530 boot_size
= le32_to_cpu(ucode
->boot_size
);
5532 IWL_DEBUG_INFO("f/w package hdr ucode version = 0x%x\n", ver
);
5533 IWL_DEBUG_INFO("f/w package hdr runtime inst size = %u\n", inst_size
);
5534 IWL_DEBUG_INFO("f/w package hdr runtime data size = %u\n", data_size
);
5535 IWL_DEBUG_INFO("f/w package hdr init inst size = %u\n", init_size
);
5536 IWL_DEBUG_INFO("f/w package hdr init data size = %u\n", init_data_size
);
5537 IWL_DEBUG_INFO("f/w package hdr boot inst size = %u\n", boot_size
);
5539 /* Verify size of file vs. image size info in file's header */
5540 if (ucode_raw
->size
< sizeof(*ucode
) +
5541 inst_size
+ data_size
+ init_size
+
5542 init_data_size
+ boot_size
) {
5544 IWL_DEBUG_INFO("uCode file size %d too small\n",
5545 (int)ucode_raw
->size
);
5550 /* Verify that uCode images will fit in card's SRAM */
5551 if (inst_size
> IWL_MAX_INST_SIZE
) {
5552 IWL_DEBUG_INFO("uCode instr len %d too large to fit in\n",
5558 if (data_size
> IWL_MAX_DATA_SIZE
) {
5559 IWL_DEBUG_INFO("uCode data len %d too large to fit in\n",
5564 if (init_size
> IWL_MAX_INST_SIZE
) {
5565 IWL_DEBUG_INFO("uCode init instr len %d too large to fit in\n",
5570 if (init_data_size
> IWL_MAX_DATA_SIZE
) {
5571 IWL_DEBUG_INFO("uCode init data len %d too large to fit in\n",
5576 if (boot_size
> IWL_MAX_BSM_SIZE
) {
5577 IWL_DEBUG_INFO("uCode boot instr len %d too large to fit in\n",
5583 /* Allocate ucode buffers for card's bus-master loading ... */
5585 /* Runtime instructions and 2 copies of data:
5586 * 1) unmodified from disk
5587 * 2) backup cache for save/restore during power-downs */
5588 priv
->ucode_code
.len
= inst_size
;
5589 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_code
);
5591 priv
->ucode_data
.len
= data_size
;
5592 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_data
);
5594 priv
->ucode_data_backup
.len
= data_size
;
5595 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_data_backup
);
5597 if (!priv
->ucode_code
.v_addr
|| !priv
->ucode_data
.v_addr
||
5598 !priv
->ucode_data_backup
.v_addr
)
5601 /* Initialization instructions and data */
5602 if (init_size
&& init_data_size
) {
5603 priv
->ucode_init
.len
= init_size
;
5604 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_init
);
5606 priv
->ucode_init_data
.len
= init_data_size
;
5607 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_init_data
);
5609 if (!priv
->ucode_init
.v_addr
|| !priv
->ucode_init_data
.v_addr
)
5613 /* Bootstrap (instructions only, no data) */
5615 priv
->ucode_boot
.len
= boot_size
;
5616 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_boot
);
5618 if (!priv
->ucode_boot
.v_addr
)
5622 /* Copy images into buffers for card's bus-master reads ... */
5624 /* Runtime instructions (first block of data in file) */
5625 src
= &ucode
->data
[0];
5626 len
= priv
->ucode_code
.len
;
5627 IWL_DEBUG_INFO("Copying (but not loading) uCode instr len %Zd\n", len
);
5628 memcpy(priv
->ucode_code
.v_addr
, src
, len
);
5629 IWL_DEBUG_INFO("uCode instr buf vaddr = 0x%p, paddr = 0x%08x\n",
5630 priv
->ucode_code
.v_addr
, (u32
)priv
->ucode_code
.p_addr
);
5632 /* Runtime data (2nd block)
5633 * NOTE: Copy into backup buffer will be done in iwl3945_up() */
5634 src
= &ucode
->data
[inst_size
];
5635 len
= priv
->ucode_data
.len
;
5636 IWL_DEBUG_INFO("Copying (but not loading) uCode data len %Zd\n", len
);
5637 memcpy(priv
->ucode_data
.v_addr
, src
, len
);
5638 memcpy(priv
->ucode_data_backup
.v_addr
, src
, len
);
5640 /* Initialization instructions (3rd block) */
5642 src
= &ucode
->data
[inst_size
+ data_size
];
5643 len
= priv
->ucode_init
.len
;
5644 IWL_DEBUG_INFO("Copying (but not loading) init instr len %Zd\n",
5646 memcpy(priv
->ucode_init
.v_addr
, src
, len
);
5649 /* Initialization data (4th block) */
5650 if (init_data_size
) {
5651 src
= &ucode
->data
[inst_size
+ data_size
+ init_size
];
5652 len
= priv
->ucode_init_data
.len
;
5653 IWL_DEBUG_INFO("Copying (but not loading) init data len %d\n",
5655 memcpy(priv
->ucode_init_data
.v_addr
, src
, len
);
5658 /* Bootstrap instructions (5th block) */
5659 src
= &ucode
->data
[inst_size
+ data_size
+ init_size
+ init_data_size
];
5660 len
= priv
->ucode_boot
.len
;
5661 IWL_DEBUG_INFO("Copying (but not loading) boot instr len %d\n",
5663 memcpy(priv
->ucode_boot
.v_addr
, src
, len
);
5665 /* We have our copies now, allow OS release its copies */
5666 release_firmware(ucode_raw
);
5670 IWL_ERROR("failed to allocate pci memory\n");
5672 iwl3945_dealloc_ucode_pci(priv
);
5675 release_firmware(ucode_raw
);
5683 * iwl3945_set_ucode_ptrs - Set uCode address location
5685 * Tell initialization uCode where to find runtime uCode.
5687 * BSM registers initially contain pointers to initialization uCode.
5688 * We need to replace them to load runtime uCode inst and data,
5689 * and to save runtime data when powering down.
5691 static int iwl3945_set_ucode_ptrs(struct iwl3945_priv
*priv
)
5696 unsigned long flags
;
5698 /* bits 31:0 for 3945 */
5699 pinst
= priv
->ucode_code
.p_addr
;
5700 pdata
= priv
->ucode_data_backup
.p_addr
;
5702 spin_lock_irqsave(&priv
->lock
, flags
);
5703 rc
= iwl3945_grab_nic_access(priv
);
5705 spin_unlock_irqrestore(&priv
->lock
, flags
);
5709 /* Tell bootstrap uCode where to find image to load */
5710 iwl3945_write_prph(priv
, BSM_DRAM_INST_PTR_REG
, pinst
);
5711 iwl3945_write_prph(priv
, BSM_DRAM_DATA_PTR_REG
, pdata
);
5712 iwl3945_write_prph(priv
, BSM_DRAM_DATA_BYTECOUNT_REG
,
5713 priv
->ucode_data
.len
);
5715 /* Inst bytecount must be last to set up, bit 31 signals uCode
5716 * that all new ptr/size info is in place */
5717 iwl3945_write_prph(priv
, BSM_DRAM_INST_BYTECOUNT_REG
,
5718 priv
->ucode_code
.len
| BSM_DRAM_INST_LOAD
);
5720 iwl3945_release_nic_access(priv
);
5722 spin_unlock_irqrestore(&priv
->lock
, flags
);
5724 IWL_DEBUG_INFO("Runtime uCode pointers are set.\n");
5730 * iwl3945_init_alive_start - Called after REPLY_ALIVE notification received
5732 * Called after REPLY_ALIVE notification received from "initialize" uCode.
5734 * Tell "initialize" uCode to go ahead and load the runtime uCode.
5736 static void iwl3945_init_alive_start(struct iwl3945_priv
*priv
)
5738 /* Check alive response for "valid" sign from uCode */
5739 if (priv
->card_alive_init
.is_valid
!= UCODE_VALID_OK
) {
5740 /* We had an error bringing up the hardware, so take it
5741 * all the way back down so we can try again */
5742 IWL_DEBUG_INFO("Initialize Alive failed.\n");
5746 /* Bootstrap uCode has loaded initialize uCode ... verify inst image.
5747 * This is a paranoid check, because we would not have gotten the
5748 * "initialize" alive if code weren't properly loaded. */
5749 if (iwl3945_verify_ucode(priv
)) {
5750 /* Runtime instruction load was bad;
5751 * take it all the way back down so we can try again */
5752 IWL_DEBUG_INFO("Bad \"initialize\" uCode load.\n");
5756 /* Send pointers to protocol/runtime uCode image ... init code will
5757 * load and launch runtime uCode, which will send us another "Alive"
5759 IWL_DEBUG_INFO("Initialization Alive received.\n");
5760 if (iwl3945_set_ucode_ptrs(priv
)) {
5761 /* Runtime instruction load won't happen;
5762 * take it all the way back down so we can try again */
5763 IWL_DEBUG_INFO("Couldn't set up uCode pointers.\n");
5769 queue_work(priv
->workqueue
, &priv
->restart
);
5774 * iwl3945_alive_start - called after REPLY_ALIVE notification received
5775 * from protocol/runtime uCode (initialization uCode's
5776 * Alive gets handled by iwl3945_init_alive_start()).
5778 static void iwl3945_alive_start(struct iwl3945_priv
*priv
)
5781 int thermal_spin
= 0;
5784 IWL_DEBUG_INFO("Runtime Alive received.\n");
5786 if (priv
->card_alive
.is_valid
!= UCODE_VALID_OK
) {
5787 /* We had an error bringing up the hardware, so take it
5788 * all the way back down so we can try again */
5789 IWL_DEBUG_INFO("Alive failed.\n");
5793 /* Initialize uCode has loaded Runtime uCode ... verify inst image.
5794 * This is a paranoid check, because we would not have gotten the
5795 * "runtime" alive if code weren't properly loaded. */
5796 if (iwl3945_verify_ucode(priv
)) {
5797 /* Runtime instruction load was bad;
5798 * take it all the way back down so we can try again */
5799 IWL_DEBUG_INFO("Bad runtime uCode load.\n");
5803 iwl3945_clear_stations_table(priv
);
5805 rc
= iwl3945_grab_nic_access(priv
);
5807 IWL_WARNING("Can not read rfkill status from adapter\n");
5811 rfkill
= iwl3945_read_prph(priv
, APMG_RFKILL_REG
);
5812 IWL_DEBUG_INFO("RFKILL status: 0x%x\n", rfkill
);
5813 iwl3945_release_nic_access(priv
);
5816 clear_bit(STATUS_RF_KILL_HW
, &priv
->status
);
5817 /* if rfkill is not on, then wait for thermal
5818 * sensor in adapter to kick in */
5819 while (iwl3945_hw_get_temperature(priv
) == 0) {
5825 IWL_DEBUG_INFO("Thermal calibration took %dus\n",
5828 set_bit(STATUS_RF_KILL_HW
, &priv
->status
);
5830 /* After the ALIVE response, we can send commands to 3945 uCode */
5831 set_bit(STATUS_ALIVE
, &priv
->status
);
5833 /* Clear out the uCode error bit if it is set */
5834 clear_bit(STATUS_FW_ERROR
, &priv
->status
);
5836 if (iwl3945_is_rfkill(priv
))
5839 ieee80211_start_queues(priv
->hw
);
5841 priv
->active_rate
= priv
->rates_mask
;
5842 priv
->active_rate_basic
= priv
->rates_mask
& IWL_BASIC_RATES_MASK
;
5844 iwl3945_send_power_mode(priv
, IWL_POWER_LEVEL(priv
->power_mode
));
5846 if (iwl3945_is_associated(priv
)) {
5847 struct iwl3945_rxon_cmd
*active_rxon
=
5848 (struct iwl3945_rxon_cmd
*)(&priv
->active_rxon
);
5850 memcpy(&priv
->staging_rxon
, &priv
->active_rxon
,
5851 sizeof(priv
->staging_rxon
));
5852 active_rxon
->filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
5854 /* Initialize our rx_config data */
5855 iwl3945_connection_init_rx_config(priv
);
5856 memcpy(priv
->staging_rxon
.node_addr
, priv
->mac_addr
, ETH_ALEN
);
5859 /* Configure Bluetooth device coexistence support */
5860 iwl3945_send_bt_config(priv
);
5862 /* Configure the adapter for unassociated operation */
5863 iwl3945_commit_rxon(priv
);
5865 /* At this point, the NIC is initialized and operational */
5866 priv
->notif_missed_beacons
= 0;
5868 iwl3945_reg_txpower_periodic(priv
);
5870 iwl3945_led_register(priv
);
5872 IWL_DEBUG_INFO("ALIVE processing complete.\n");
5873 set_bit(STATUS_READY
, &priv
->status
);
5874 wake_up_interruptible(&priv
->wait_command_queue
);
5876 if (priv
->error_recovering
)
5877 iwl3945_error_recovery(priv
);
5879 ieee80211_notify_mac(priv
->hw
, IEEE80211_NOTIFY_RE_ASSOC
);
5883 queue_work(priv
->workqueue
, &priv
->restart
);
5886 static void iwl3945_cancel_deferred_work(struct iwl3945_priv
*priv
);
5888 static void __iwl3945_down(struct iwl3945_priv
*priv
)
5890 unsigned long flags
;
5891 int exit_pending
= test_bit(STATUS_EXIT_PENDING
, &priv
->status
);
5892 struct ieee80211_conf
*conf
= NULL
;
5894 IWL_DEBUG_INFO(DRV_NAME
" is going down\n");
5896 conf
= ieee80211_get_hw_conf(priv
->hw
);
5899 set_bit(STATUS_EXIT_PENDING
, &priv
->status
);
5901 iwl3945_led_unregister(priv
);
5902 iwl3945_clear_stations_table(priv
);
5904 /* Unblock any waiting calls */
5905 wake_up_interruptible_all(&priv
->wait_command_queue
);
5907 /* Wipe out the EXIT_PENDING status bit if we are not actually
5908 * exiting the module */
5910 clear_bit(STATUS_EXIT_PENDING
, &priv
->status
);
5912 /* stop and reset the on-board processor */
5913 iwl3945_write32(priv
, CSR_RESET
, CSR_RESET_REG_FLAG_NEVO_RESET
);
5915 /* tell the device to stop sending interrupts */
5916 spin_lock_irqsave(&priv
->lock
, flags
);
5917 iwl3945_disable_interrupts(priv
);
5918 spin_unlock_irqrestore(&priv
->lock
, flags
);
5919 iwl_synchronize_irq(priv
);
5921 if (priv
->mac80211_registered
)
5922 ieee80211_stop_queues(priv
->hw
);
5924 /* If we have not previously called iwl3945_init() then
5925 * clear all bits but the RF Kill and SUSPEND bits and return */
5926 if (!iwl3945_is_init(priv
)) {
5927 priv
->status
= test_bit(STATUS_RF_KILL_HW
, &priv
->status
) <<
5929 test_bit(STATUS_RF_KILL_SW
, &priv
->status
) <<
5931 test_bit(STATUS_GEO_CONFIGURED
, &priv
->status
) <<
5932 STATUS_GEO_CONFIGURED
|
5933 test_bit(STATUS_IN_SUSPEND
, &priv
->status
) <<
5938 /* ...otherwise clear out all the status bits but the RF Kill and
5939 * SUSPEND bits and continue taking the NIC down. */
5940 priv
->status
&= test_bit(STATUS_RF_KILL_HW
, &priv
->status
) <<
5942 test_bit(STATUS_RF_KILL_SW
, &priv
->status
) <<
5944 test_bit(STATUS_GEO_CONFIGURED
, &priv
->status
) <<
5945 STATUS_GEO_CONFIGURED
|
5946 test_bit(STATUS_IN_SUSPEND
, &priv
->status
) <<
5948 test_bit(STATUS_FW_ERROR
, &priv
->status
) <<
5951 spin_lock_irqsave(&priv
->lock
, flags
);
5952 iwl3945_clear_bit(priv
, CSR_GP_CNTRL
, CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ
);
5953 spin_unlock_irqrestore(&priv
->lock
, flags
);
5955 iwl3945_hw_txq_ctx_stop(priv
);
5956 iwl3945_hw_rxq_stop(priv
);
5958 spin_lock_irqsave(&priv
->lock
, flags
);
5959 if (!iwl3945_grab_nic_access(priv
)) {
5960 iwl3945_write_prph(priv
, APMG_CLK_DIS_REG
,
5961 APMG_CLK_VAL_DMA_CLK_RQT
);
5962 iwl3945_release_nic_access(priv
);
5964 spin_unlock_irqrestore(&priv
->lock
, flags
);
5968 iwl3945_hw_nic_stop_master(priv
);
5969 iwl3945_set_bit(priv
, CSR_RESET
, CSR_RESET_REG_FLAG_SW_RESET
);
5970 iwl3945_hw_nic_reset(priv
);
5973 memset(&priv
->card_alive
, 0, sizeof(struct iwl3945_alive_resp
));
5975 if (priv
->ibss_beacon
)
5976 dev_kfree_skb(priv
->ibss_beacon
);
5977 priv
->ibss_beacon
= NULL
;
5979 /* clear out any free frames */
5980 iwl3945_clear_free_frames(priv
);
5983 static void iwl3945_down(struct iwl3945_priv
*priv
)
5985 mutex_lock(&priv
->mutex
);
5986 __iwl3945_down(priv
);
5987 mutex_unlock(&priv
->mutex
);
5989 iwl3945_cancel_deferred_work(priv
);
5992 #define MAX_HW_RESTARTS 5
5994 static int __iwl3945_up(struct iwl3945_priv
*priv
)
5998 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
)) {
5999 IWL_WARNING("Exit pending; will not bring the NIC up\n");
6003 if (test_bit(STATUS_RF_KILL_SW
, &priv
->status
)) {
6004 IWL_WARNING("Radio disabled by SW RF kill (module "
6009 if (!priv
->ucode_data_backup
.v_addr
|| !priv
->ucode_data
.v_addr
) {
6010 IWL_ERROR("ucode not available for device bringup\n");
6014 /* If platform's RF_KILL switch is NOT set to KILL */
6015 if (iwl3945_read32(priv
, CSR_GP_CNTRL
) &
6016 CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW
)
6017 clear_bit(STATUS_RF_KILL_HW
, &priv
->status
);
6019 set_bit(STATUS_RF_KILL_HW
, &priv
->status
);
6020 if (!test_bit(STATUS_IN_SUSPEND
, &priv
->status
)) {
6021 IWL_WARNING("Radio disabled by HW RF Kill switch\n");
6026 iwl3945_write32(priv
, CSR_INT
, 0xFFFFFFFF);
6028 rc
= iwl3945_hw_nic_init(priv
);
6030 IWL_ERROR("Unable to int nic\n");
6034 /* make sure rfkill handshake bits are cleared */
6035 iwl3945_write32(priv
, CSR_UCODE_DRV_GP1_CLR
, CSR_UCODE_SW_BIT_RFKILL
);
6036 iwl3945_write32(priv
, CSR_UCODE_DRV_GP1_CLR
,
6037 CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED
);
6039 /* clear (again), then enable host interrupts */
6040 iwl3945_write32(priv
, CSR_INT
, 0xFFFFFFFF);
6041 iwl3945_enable_interrupts(priv
);
6043 /* really make sure rfkill handshake bits are cleared */
6044 iwl3945_write32(priv
, CSR_UCODE_DRV_GP1_CLR
, CSR_UCODE_SW_BIT_RFKILL
);
6045 iwl3945_write32(priv
, CSR_UCODE_DRV_GP1_CLR
, CSR_UCODE_SW_BIT_RFKILL
);
6047 /* Copy original ucode data image from disk into backup cache.
6048 * This will be used to initialize the on-board processor's
6049 * data SRAM for a clean start when the runtime program first loads. */
6050 memcpy(priv
->ucode_data_backup
.v_addr
, priv
->ucode_data
.v_addr
,
6051 priv
->ucode_data
.len
);
6053 /* We return success when we resume from suspend and rf_kill is on. */
6054 if (test_bit(STATUS_RF_KILL_HW
, &priv
->status
))
6057 for (i
= 0; i
< MAX_HW_RESTARTS
; i
++) {
6059 iwl3945_clear_stations_table(priv
);
6061 /* load bootstrap state machine,
6062 * load bootstrap program into processor's memory,
6063 * prepare to load the "initialize" uCode */
6064 rc
= iwl3945_load_bsm(priv
);
6067 IWL_ERROR("Unable to set up bootstrap uCode: %d\n", rc
);
6071 /* start card; "initialize" will load runtime ucode */
6072 iwl3945_nic_start(priv
);
6074 IWL_DEBUG_INFO(DRV_NAME
" is coming up\n");
6079 set_bit(STATUS_EXIT_PENDING
, &priv
->status
);
6080 __iwl3945_down(priv
);
6082 /* tried to restart and config the device for as long as our
6083 * patience could withstand */
6084 IWL_ERROR("Unable to initialize device after %d attempts.\n", i
);
6089 /*****************************************************************************
6091 * Workqueue callbacks
6093 *****************************************************************************/
6095 static void iwl3945_bg_init_alive_start(struct work_struct
*data
)
6097 struct iwl3945_priv
*priv
=
6098 container_of(data
, struct iwl3945_priv
, init_alive_start
.work
);
6100 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6103 mutex_lock(&priv
->mutex
);
6104 iwl3945_init_alive_start(priv
);
6105 mutex_unlock(&priv
->mutex
);
6108 static void iwl3945_bg_alive_start(struct work_struct
*data
)
6110 struct iwl3945_priv
*priv
=
6111 container_of(data
, struct iwl3945_priv
, alive_start
.work
);
6113 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6116 mutex_lock(&priv
->mutex
);
6117 iwl3945_alive_start(priv
);
6118 mutex_unlock(&priv
->mutex
);
6121 static void iwl3945_bg_rf_kill(struct work_struct
*work
)
6123 struct iwl3945_priv
*priv
= container_of(work
, struct iwl3945_priv
, rf_kill
);
6125 wake_up_interruptible(&priv
->wait_command_queue
);
6127 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6130 mutex_lock(&priv
->mutex
);
6132 if (!iwl3945_is_rfkill(priv
)) {
6133 IWL_DEBUG(IWL_DL_INFO
| IWL_DL_RF_KILL
,
6134 "HW and/or SW RF Kill no longer active, restarting "
6136 if (!test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6137 queue_work(priv
->workqueue
, &priv
->restart
);
6140 if (!test_bit(STATUS_RF_KILL_HW
, &priv
->status
))
6141 IWL_DEBUG_RF_KILL("Can not turn radio back on - "
6142 "disabled by SW switch\n");
6144 IWL_WARNING("Radio Frequency Kill Switch is On:\n"
6145 "Kill switch must be turned off for "
6146 "wireless networking to work.\n");
6148 mutex_unlock(&priv
->mutex
);
6151 #define IWL_SCAN_CHECK_WATCHDOG (7 * HZ)
6153 static void iwl3945_bg_scan_check(struct work_struct
*data
)
6155 struct iwl3945_priv
*priv
=
6156 container_of(data
, struct iwl3945_priv
, scan_check
.work
);
6158 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6161 mutex_lock(&priv
->mutex
);
6162 if (test_bit(STATUS_SCANNING
, &priv
->status
) ||
6163 test_bit(STATUS_SCAN_ABORTING
, &priv
->status
)) {
6164 IWL_DEBUG(IWL_DL_INFO
| IWL_DL_SCAN
,
6165 "Scan completion watchdog resetting adapter (%dms)\n",
6166 jiffies_to_msecs(IWL_SCAN_CHECK_WATCHDOG
));
6168 if (!test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6169 iwl3945_send_scan_abort(priv
);
6171 mutex_unlock(&priv
->mutex
);
6174 static void iwl3945_bg_request_scan(struct work_struct
*data
)
6176 struct iwl3945_priv
*priv
=
6177 container_of(data
, struct iwl3945_priv
, request_scan
);
6178 struct iwl3945_host_cmd cmd
= {
6179 .id
= REPLY_SCAN_CMD
,
6180 .len
= sizeof(struct iwl3945_scan_cmd
),
6181 .meta
.flags
= CMD_SIZE_HUGE
,
6184 struct iwl3945_scan_cmd
*scan
;
6185 struct ieee80211_conf
*conf
= NULL
;
6187 enum ieee80211_band band
;
6189 conf
= ieee80211_get_hw_conf(priv
->hw
);
6191 mutex_lock(&priv
->mutex
);
6193 if (!iwl3945_is_ready(priv
)) {
6194 IWL_WARNING("request scan called when driver not ready.\n");
6198 /* Make sure the scan wasn't cancelled before this queued work
6199 * was given the chance to run... */
6200 if (!test_bit(STATUS_SCANNING
, &priv
->status
))
6203 /* This should never be called or scheduled if there is currently
6204 * a scan active in the hardware. */
6205 if (test_bit(STATUS_SCAN_HW
, &priv
->status
)) {
6206 IWL_DEBUG_INFO("Multiple concurrent scan requests in parallel. "
6207 "Ignoring second request.\n");
6212 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
)) {
6213 IWL_DEBUG_SCAN("Aborting scan due to device shutdown\n");
6217 if (test_bit(STATUS_SCAN_ABORTING
, &priv
->status
)) {
6218 IWL_DEBUG_HC("Scan request while abort pending. Queuing.\n");
6222 if (iwl3945_is_rfkill(priv
)) {
6223 IWL_DEBUG_HC("Aborting scan due to RF Kill activation\n");
6227 if (!test_bit(STATUS_READY
, &priv
->status
)) {
6228 IWL_DEBUG_HC("Scan request while uninitialized. Queuing.\n");
6232 if (!priv
->scan_bands
) {
6233 IWL_DEBUG_HC("Aborting scan due to no requested bands\n");
6238 priv
->scan
= kmalloc(sizeof(struct iwl3945_scan_cmd
) +
6239 IWL_MAX_SCAN_SIZE
, GFP_KERNEL
);
6246 memset(scan
, 0, sizeof(struct iwl3945_scan_cmd
) + IWL_MAX_SCAN_SIZE
);
6248 scan
->quiet_plcp_th
= IWL_PLCP_QUIET_THRESH
;
6249 scan
->quiet_time
= IWL_ACTIVE_QUIET_TIME
;
6251 if (iwl3945_is_associated(priv
)) {
6254 u32 suspend_time
= 100;
6255 u32 scan_suspend_time
= 100;
6256 unsigned long flags
;
6258 IWL_DEBUG_INFO("Scanning while associated...\n");
6260 spin_lock_irqsave(&priv
->lock
, flags
);
6261 interval
= priv
->beacon_int
;
6262 spin_unlock_irqrestore(&priv
->lock
, flags
);
6264 scan
->suspend_time
= 0;
6265 scan
->max_out_time
= cpu_to_le32(200 * 1024);
6267 interval
= suspend_time
;
6269 * suspend time format:
6270 * 0-19: beacon interval in usec (time before exec.)
6272 * 24-31: number of beacons (suspend between channels)
6275 extra
= (suspend_time
/ interval
) << 24;
6276 scan_suspend_time
= 0xFF0FFFFF &
6277 (extra
| ((suspend_time
% interval
) * 1024));
6279 scan
->suspend_time
= cpu_to_le32(scan_suspend_time
);
6280 IWL_DEBUG_SCAN("suspend_time 0x%X beacon interval %d\n",
6281 scan_suspend_time
, interval
);
6284 /* We should add the ability for user to lock to PASSIVE ONLY */
6285 if (priv
->one_direct_scan
) {
6287 ("Kicking off one direct scan for '%s'\n",
6288 iwl3945_escape_essid(priv
->direct_ssid
,
6289 priv
->direct_ssid_len
));
6290 scan
->direct_scan
[0].id
= WLAN_EID_SSID
;
6291 scan
->direct_scan
[0].len
= priv
->direct_ssid_len
;
6292 memcpy(scan
->direct_scan
[0].ssid
,
6293 priv
->direct_ssid
, priv
->direct_ssid_len
);
6295 } else if (!iwl3945_is_associated(priv
) && priv
->essid_len
) {
6297 ("Kicking off one direct scan for '%s' when not associated\n",
6298 iwl3945_escape_essid(priv
->essid
, priv
->essid_len
));
6299 scan
->direct_scan
[0].id
= WLAN_EID_SSID
;
6300 scan
->direct_scan
[0].len
= priv
->essid_len
;
6301 memcpy(scan
->direct_scan
[0].ssid
, priv
->essid
, priv
->essid_len
);
6304 IWL_DEBUG_SCAN("Kicking off one indirect scan.\n");
6308 /* We don't build a direct scan probe request; the uCode will do
6309 * that based on the direct_mask added to each channel entry */
6310 scan
->tx_cmd
.len
= cpu_to_le16(
6311 iwl3945_fill_probe_req(priv
, (struct ieee80211_mgmt
*)scan
->data
,
6312 IWL_MAX_SCAN_SIZE
- sizeof(*scan
), 0));
6313 scan
->tx_cmd
.tx_flags
= TX_CMD_FLG_SEQ_CTL_MSK
;
6314 scan
->tx_cmd
.sta_id
= priv
->hw_setting
.bcast_sta_id
;
6315 scan
->tx_cmd
.stop_time
.life_time
= TX_CMD_LIFE_TIME_INFINITE
;
6317 /* flags + rate selection */
6319 switch (priv
->scan_bands
) {
6321 scan
->flags
= RXON_FLG_BAND_24G_MSK
| RXON_FLG_AUTO_DETECT_MSK
;
6322 scan
->tx_cmd
.rate
= IWL_RATE_1M_PLCP
;
6323 scan
->good_CRC_th
= 0;
6324 band
= IEEE80211_BAND_2GHZ
;
6328 scan
->tx_cmd
.rate
= IWL_RATE_6M_PLCP
;
6329 scan
->good_CRC_th
= IWL_GOOD_CRC_TH
;
6330 band
= IEEE80211_BAND_5GHZ
;
6334 IWL_WARNING("Invalid scan band count\n");
6338 /* select Rx antennas */
6339 scan
->flags
|= iwl3945_get_antenna_flags(priv
);
6341 if (priv
->iw_mode
== IEEE80211_IF_TYPE_MNTR
)
6342 scan
->filter_flags
= RXON_FILTER_PROMISC_MSK
;
6345 scan
->channel_count
=
6346 iwl3945_get_channels_for_scan(
6347 priv
, band
, 1, /* active */
6349 (void *)&scan
->data
[le16_to_cpu(scan
->tx_cmd
.len
)]);
6351 scan
->channel_count
=
6352 iwl3945_get_channels_for_scan(
6353 priv
, band
, 0, /* passive */
6355 (void *)&scan
->data
[le16_to_cpu(scan
->tx_cmd
.len
)]);
6357 cmd
.len
+= le16_to_cpu(scan
->tx_cmd
.len
) +
6358 scan
->channel_count
* sizeof(struct iwl3945_scan_channel
);
6360 scan
->len
= cpu_to_le16(cmd
.len
);
6362 set_bit(STATUS_SCAN_HW
, &priv
->status
);
6363 rc
= iwl3945_send_cmd_sync(priv
, &cmd
);
6367 queue_delayed_work(priv
->workqueue
, &priv
->scan_check
,
6368 IWL_SCAN_CHECK_WATCHDOG
);
6370 mutex_unlock(&priv
->mutex
);
6374 /* inform mac80211 scan aborted */
6375 queue_work(priv
->workqueue
, &priv
->scan_completed
);
6376 mutex_unlock(&priv
->mutex
);
6379 static void iwl3945_bg_up(struct work_struct
*data
)
6381 struct iwl3945_priv
*priv
= container_of(data
, struct iwl3945_priv
, up
);
6383 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6386 mutex_lock(&priv
->mutex
);
6388 mutex_unlock(&priv
->mutex
);
6391 static void iwl3945_bg_restart(struct work_struct
*data
)
6393 struct iwl3945_priv
*priv
= container_of(data
, struct iwl3945_priv
, restart
);
6395 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6399 queue_work(priv
->workqueue
, &priv
->up
);
6402 static void iwl3945_bg_rx_replenish(struct work_struct
*data
)
6404 struct iwl3945_priv
*priv
=
6405 container_of(data
, struct iwl3945_priv
, rx_replenish
);
6407 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6410 mutex_lock(&priv
->mutex
);
6411 iwl3945_rx_replenish(priv
);
6412 mutex_unlock(&priv
->mutex
);
6415 #define IWL_DELAY_NEXT_SCAN (HZ*2)
6417 static void iwl3945_bg_post_associate(struct work_struct
*data
)
6419 struct iwl3945_priv
*priv
= container_of(data
, struct iwl3945_priv
,
6420 post_associate
.work
);
6423 struct ieee80211_conf
*conf
= NULL
;
6424 DECLARE_MAC_BUF(mac
);
6426 if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) {
6427 IWL_ERROR("%s Should not be called in AP mode\n", __FUNCTION__
);
6432 IWL_DEBUG_ASSOC("Associated as %d to: %s\n",
6434 print_mac(mac
, priv
->active_rxon
.bssid_addr
));
6436 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6439 mutex_lock(&priv
->mutex
);
6441 if (!priv
->vif
|| !priv
->is_open
) {
6442 mutex_unlock(&priv
->mutex
);
6445 iwl3945_scan_cancel_timeout(priv
, 200);
6447 conf
= ieee80211_get_hw_conf(priv
->hw
);
6449 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
6450 iwl3945_commit_rxon(priv
);
6452 memset(&priv
->rxon_timing
, 0, sizeof(struct iwl3945_rxon_time_cmd
));
6453 iwl3945_setup_rxon_timing(priv
);
6454 rc
= iwl3945_send_cmd_pdu(priv
, REPLY_RXON_TIMING
,
6455 sizeof(priv
->rxon_timing
), &priv
->rxon_timing
);
6457 IWL_WARNING("REPLY_RXON_TIMING failed - "
6458 "Attempting to continue.\n");
6460 priv
->staging_rxon
.filter_flags
|= RXON_FILTER_ASSOC_MSK
;
6462 priv
->staging_rxon
.assoc_id
= cpu_to_le16(priv
->assoc_id
);
6464 IWL_DEBUG_ASSOC("assoc id %d beacon interval %d\n",
6465 priv
->assoc_id
, priv
->beacon_int
);
6467 if (priv
->assoc_capability
& WLAN_CAPABILITY_SHORT_PREAMBLE
)
6468 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_PREAMBLE_MSK
;
6470 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_PREAMBLE_MSK
;
6472 if (priv
->staging_rxon
.flags
& RXON_FLG_BAND_24G_MSK
) {
6473 if (priv
->assoc_capability
& WLAN_CAPABILITY_SHORT_SLOT_TIME
)
6474 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_SLOT_MSK
;
6476 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_SLOT_MSK
;
6478 if (priv
->iw_mode
== IEEE80211_IF_TYPE_IBSS
)
6479 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_SLOT_MSK
;
6483 iwl3945_commit_rxon(priv
);
6485 switch (priv
->iw_mode
) {
6486 case IEEE80211_IF_TYPE_STA
:
6487 iwl3945_rate_scale_init(priv
->hw
, IWL_AP_ID
);
6490 case IEEE80211_IF_TYPE_IBSS
:
6492 /* clear out the station table */
6493 iwl3945_clear_stations_table(priv
);
6495 iwl3945_add_station(priv
, iwl3945_broadcast_addr
, 0, 0);
6496 iwl3945_add_station(priv
, priv
->bssid
, 0, 0);
6497 iwl3945_sync_sta(priv
, IWL_STA_ID
,
6498 (priv
->band
== IEEE80211_BAND_5GHZ
) ?
6499 IWL_RATE_6M_PLCP
: IWL_RATE_1M_PLCP
,
6501 iwl3945_rate_scale_init(priv
->hw
, IWL_STA_ID
);
6502 iwl3945_send_beacon_cmd(priv
);
6507 IWL_ERROR("%s Should not be called in %d mode\n",
6508 __FUNCTION__
, priv
->iw_mode
);
6512 iwl3945_sequence_reset(priv
);
6514 iwl3945_activate_qos(priv
, 0);
6516 /* we have just associated, don't start scan too early */
6517 priv
->next_scan_jiffies
= jiffies
+ IWL_DELAY_NEXT_SCAN
;
6518 mutex_unlock(&priv
->mutex
);
6521 static void iwl3945_bg_abort_scan(struct work_struct
*work
)
6523 struct iwl3945_priv
*priv
= container_of(work
, struct iwl3945_priv
, abort_scan
);
6525 if (!iwl3945_is_ready(priv
))
6528 mutex_lock(&priv
->mutex
);
6530 set_bit(STATUS_SCAN_ABORTING
, &priv
->status
);
6531 iwl3945_send_scan_abort(priv
);
6533 mutex_unlock(&priv
->mutex
);
6536 static int iwl3945_mac_config(struct ieee80211_hw
*hw
, struct ieee80211_conf
*conf
);
6538 static void iwl3945_bg_scan_completed(struct work_struct
*work
)
6540 struct iwl3945_priv
*priv
=
6541 container_of(work
, struct iwl3945_priv
, scan_completed
);
6543 IWL_DEBUG(IWL_DL_INFO
| IWL_DL_SCAN
, "SCAN complete scan\n");
6545 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6548 if (test_bit(STATUS_CONF_PENDING
, &priv
->status
))
6549 iwl3945_mac_config(priv
->hw
, ieee80211_get_hw_conf(priv
->hw
));
6551 ieee80211_scan_completed(priv
->hw
);
6553 /* Since setting the TXPOWER may have been deferred while
6554 * performing the scan, fire one off */
6555 mutex_lock(&priv
->mutex
);
6556 iwl3945_hw_reg_send_txpower(priv
);
6557 mutex_unlock(&priv
->mutex
);
6560 /*****************************************************************************
6562 * mac80211 entry point functions
6564 *****************************************************************************/
6566 #define UCODE_READY_TIMEOUT (2 * HZ)
6568 static int iwl3945_mac_start(struct ieee80211_hw
*hw
)
6570 struct iwl3945_priv
*priv
= hw
->priv
;
6573 IWL_DEBUG_MAC80211("enter\n");
6575 if (pci_enable_device(priv
->pci_dev
)) {
6576 IWL_ERROR("Fail to pci_enable_device\n");
6579 pci_restore_state(priv
->pci_dev
);
6580 pci_enable_msi(priv
->pci_dev
);
6582 ret
= request_irq(priv
->pci_dev
->irq
, iwl3945_isr
, IRQF_SHARED
,
6585 IWL_ERROR("Error allocating IRQ %d\n", priv
->pci_dev
->irq
);
6586 goto out_disable_msi
;
6589 /* we should be verifying the device is ready to be opened */
6590 mutex_lock(&priv
->mutex
);
6592 memset(&priv
->staging_rxon
, 0, sizeof(struct iwl3945_rxon_cmd
));
6593 /* fetch ucode file from disk, alloc and copy to bus-master buffers ...
6594 * ucode filename and max sizes are card-specific. */
6596 if (!priv
->ucode_code
.len
) {
6597 ret
= iwl3945_read_ucode(priv
);
6599 IWL_ERROR("Could not read microcode: %d\n", ret
);
6600 mutex_unlock(&priv
->mutex
);
6601 goto out_release_irq
;
6605 ret
= __iwl3945_up(priv
);
6607 mutex_unlock(&priv
->mutex
);
6610 goto out_release_irq
;
6612 IWL_DEBUG_INFO("Start UP work.\n");
6614 if (test_bit(STATUS_IN_SUSPEND
, &priv
->status
))
6617 /* Wait for START_ALIVE from ucode. Otherwise callbacks from
6618 * mac80211 will not be run successfully. */
6619 ret
= wait_event_interruptible_timeout(priv
->wait_command_queue
,
6620 test_bit(STATUS_READY
, &priv
->status
),
6621 UCODE_READY_TIMEOUT
);
6623 if (!test_bit(STATUS_READY
, &priv
->status
)) {
6624 IWL_ERROR("Wait for START_ALIVE timeout after %dms.\n",
6625 jiffies_to_msecs(UCODE_READY_TIMEOUT
));
6627 goto out_release_irq
;
6632 IWL_DEBUG_MAC80211("leave\n");
6636 free_irq(priv
->pci_dev
->irq
, priv
);
6638 pci_disable_msi(priv
->pci_dev
);
6639 pci_disable_device(priv
->pci_dev
);
6641 IWL_DEBUG_MAC80211("leave - failed\n");
6645 static void iwl3945_mac_stop(struct ieee80211_hw
*hw
)
6647 struct iwl3945_priv
*priv
= hw
->priv
;
6649 IWL_DEBUG_MAC80211("enter\n");
6651 if (!priv
->is_open
) {
6652 IWL_DEBUG_MAC80211("leave - skip\n");
6658 if (iwl3945_is_ready_rf(priv
)) {
6659 /* stop mac, cancel any scan request and clear
6660 * RXON_FILTER_ASSOC_MSK BIT
6662 mutex_lock(&priv
->mutex
);
6663 iwl3945_scan_cancel_timeout(priv
, 100);
6664 cancel_delayed_work(&priv
->post_associate
);
6665 mutex_unlock(&priv
->mutex
);
6670 flush_workqueue(priv
->workqueue
);
6671 free_irq(priv
->pci_dev
->irq
, priv
);
6672 pci_disable_msi(priv
->pci_dev
);
6673 pci_save_state(priv
->pci_dev
);
6674 pci_disable_device(priv
->pci_dev
);
6676 IWL_DEBUG_MAC80211("leave\n");
6679 static int iwl3945_mac_tx(struct ieee80211_hw
*hw
, struct sk_buff
*skb
,
6680 struct ieee80211_tx_control
*ctl
)
6682 struct iwl3945_priv
*priv
= hw
->priv
;
6684 IWL_DEBUG_MAC80211("enter\n");
6686 if (priv
->iw_mode
== IEEE80211_IF_TYPE_MNTR
) {
6687 IWL_DEBUG_MAC80211("leave - monitor\n");
6691 IWL_DEBUG_TX("dev->xmit(%d bytes) at rate 0x%02x\n", skb
->len
,
6692 ctl
->tx_rate
->bitrate
);
6694 if (iwl3945_tx_skb(priv
, skb
, ctl
))
6695 dev_kfree_skb_any(skb
);
6697 IWL_DEBUG_MAC80211("leave\n");
6701 static int iwl3945_mac_add_interface(struct ieee80211_hw
*hw
,
6702 struct ieee80211_if_init_conf
*conf
)
6704 struct iwl3945_priv
*priv
= hw
->priv
;
6705 unsigned long flags
;
6706 DECLARE_MAC_BUF(mac
);
6708 IWL_DEBUG_MAC80211("enter: type %d\n", conf
->type
);
6711 IWL_DEBUG_MAC80211("leave - vif != NULL\n");
6715 spin_lock_irqsave(&priv
->lock
, flags
);
6716 priv
->vif
= conf
->vif
;
6718 spin_unlock_irqrestore(&priv
->lock
, flags
);
6720 mutex_lock(&priv
->mutex
);
6722 if (conf
->mac_addr
) {
6723 IWL_DEBUG_MAC80211("Set: %s\n", print_mac(mac
, conf
->mac_addr
));
6724 memcpy(priv
->mac_addr
, conf
->mac_addr
, ETH_ALEN
);
6727 if (iwl3945_is_ready(priv
))
6728 iwl3945_set_mode(priv
, conf
->type
);
6730 mutex_unlock(&priv
->mutex
);
6732 IWL_DEBUG_MAC80211("leave\n");
6737 * iwl3945_mac_config - mac80211 config callback
6739 * We ignore conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME since it seems to
6740 * be set inappropriately and the driver currently sets the hardware up to
6741 * use it whenever needed.
6743 static int iwl3945_mac_config(struct ieee80211_hw
*hw
, struct ieee80211_conf
*conf
)
6745 struct iwl3945_priv
*priv
= hw
->priv
;
6746 const struct iwl3945_channel_info
*ch_info
;
6747 unsigned long flags
;
6750 mutex_lock(&priv
->mutex
);
6751 IWL_DEBUG_MAC80211("enter to channel %d\n", conf
->channel
->hw_value
);
6753 priv
->add_radiotap
= !!(conf
->flags
& IEEE80211_CONF_RADIOTAP
);
6755 if (!iwl3945_is_ready(priv
)) {
6756 IWL_DEBUG_MAC80211("leave - not ready\n");
6761 if (unlikely(!iwl3945_param_disable_hw_scan
&&
6762 test_bit(STATUS_SCANNING
, &priv
->status
))) {
6763 IWL_DEBUG_MAC80211("leave - scanning\n");
6764 set_bit(STATUS_CONF_PENDING
, &priv
->status
);
6765 mutex_unlock(&priv
->mutex
);
6769 spin_lock_irqsave(&priv
->lock
, flags
);
6771 ch_info
= iwl3945_get_channel_info(priv
, conf
->channel
->band
,
6772 conf
->channel
->hw_value
);
6773 if (!is_channel_valid(ch_info
)) {
6774 IWL_DEBUG_SCAN("Channel %d [%d] is INVALID for this SKU.\n",
6775 conf
->channel
->hw_value
, conf
->channel
->band
);
6776 IWL_DEBUG_MAC80211("leave - invalid channel\n");
6777 spin_unlock_irqrestore(&priv
->lock
, flags
);
6782 iwl3945_set_rxon_channel(priv
, conf
->channel
->band
, conf
->channel
->hw_value
);
6784 iwl3945_set_flags_for_phymode(priv
, conf
->channel
->band
);
6786 /* The list of supported rates and rate mask can be different
6787 * for each phymode; since the phymode may have changed, reset
6788 * the rate mask to what mac80211 lists */
6789 iwl3945_set_rate(priv
);
6791 spin_unlock_irqrestore(&priv
->lock
, flags
);
6793 #ifdef IEEE80211_CONF_CHANNEL_SWITCH
6794 if (conf
->flags
& IEEE80211_CONF_CHANNEL_SWITCH
) {
6795 iwl3945_hw_channel_switch(priv
, conf
->channel
);
6800 iwl3945_radio_kill_sw(priv
, !conf
->radio_enabled
);
6802 if (!conf
->radio_enabled
) {
6803 IWL_DEBUG_MAC80211("leave - radio disabled\n");
6807 if (iwl3945_is_rfkill(priv
)) {
6808 IWL_DEBUG_MAC80211("leave - RF kill\n");
6813 iwl3945_set_rate(priv
);
6815 if (memcmp(&priv
->active_rxon
,
6816 &priv
->staging_rxon
, sizeof(priv
->staging_rxon
)))
6817 iwl3945_commit_rxon(priv
);
6819 IWL_DEBUG_INFO("No re-sending same RXON configuration.\n");
6821 IWL_DEBUG_MAC80211("leave\n");
6824 clear_bit(STATUS_CONF_PENDING
, &priv
->status
);
6825 mutex_unlock(&priv
->mutex
);
6829 static void iwl3945_config_ap(struct iwl3945_priv
*priv
)
6833 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6836 /* The following should be done only at AP bring up */
6837 if ((priv
->active_rxon
.filter_flags
& RXON_FILTER_ASSOC_MSK
) == 0) {
6839 /* RXON - unassoc (to set timing command) */
6840 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
6841 iwl3945_commit_rxon(priv
);
6844 memset(&priv
->rxon_timing
, 0, sizeof(struct iwl3945_rxon_time_cmd
));
6845 iwl3945_setup_rxon_timing(priv
);
6846 rc
= iwl3945_send_cmd_pdu(priv
, REPLY_RXON_TIMING
,
6847 sizeof(priv
->rxon_timing
), &priv
->rxon_timing
);
6849 IWL_WARNING("REPLY_RXON_TIMING failed - "
6850 "Attempting to continue.\n");
6852 /* FIXME: what should be the assoc_id for AP? */
6853 priv
->staging_rxon
.assoc_id
= cpu_to_le16(priv
->assoc_id
);
6854 if (priv
->assoc_capability
& WLAN_CAPABILITY_SHORT_PREAMBLE
)
6855 priv
->staging_rxon
.flags
|=
6856 RXON_FLG_SHORT_PREAMBLE_MSK
;
6858 priv
->staging_rxon
.flags
&=
6859 ~RXON_FLG_SHORT_PREAMBLE_MSK
;
6861 if (priv
->staging_rxon
.flags
& RXON_FLG_BAND_24G_MSK
) {
6862 if (priv
->assoc_capability
&
6863 WLAN_CAPABILITY_SHORT_SLOT_TIME
)
6864 priv
->staging_rxon
.flags
|=
6865 RXON_FLG_SHORT_SLOT_MSK
;
6867 priv
->staging_rxon
.flags
&=
6868 ~RXON_FLG_SHORT_SLOT_MSK
;
6870 if (priv
->iw_mode
== IEEE80211_IF_TYPE_IBSS
)
6871 priv
->staging_rxon
.flags
&=
6872 ~RXON_FLG_SHORT_SLOT_MSK
;
6874 /* restore RXON assoc */
6875 priv
->staging_rxon
.filter_flags
|= RXON_FILTER_ASSOC_MSK
;
6876 iwl3945_commit_rxon(priv
);
6877 iwl3945_add_station(priv
, iwl3945_broadcast_addr
, 0, 0);
6879 iwl3945_send_beacon_cmd(priv
);
6881 /* FIXME - we need to add code here to detect a totally new
6882 * configuration, reset the AP, unassoc, rxon timing, assoc,
6883 * clear sta table, add BCAST sta... */
6886 static int iwl3945_mac_config_interface(struct ieee80211_hw
*hw
,
6887 struct ieee80211_vif
*vif
,
6888 struct ieee80211_if_conf
*conf
)
6890 struct iwl3945_priv
*priv
= hw
->priv
;
6891 DECLARE_MAC_BUF(mac
);
6892 unsigned long flags
;
6898 if (priv
->vif
!= vif
) {
6899 IWL_DEBUG_MAC80211("leave - priv->vif != vif\n");
6903 /* XXX: this MUST use conf->mac_addr */
6905 if ((priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) &&
6906 (!conf
->beacon
|| !conf
->ssid_len
)) {
6908 ("Leaving in AP mode because HostAPD is not ready.\n");
6912 if (!iwl3945_is_alive(priv
))
6915 mutex_lock(&priv
->mutex
);
6918 IWL_DEBUG_MAC80211("bssid: %s\n",
6919 print_mac(mac
, conf
->bssid
));
6922 * very dubious code was here; the probe filtering flag is never set:
6924 if (unlikely(test_bit(STATUS_SCANNING, &priv->status)) &&
6925 !(priv->hw->flags & IEEE80211_HW_NO_PROBE_FILTERING)) {
6928 if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) {
6930 conf
->bssid
= priv
->mac_addr
;
6931 memcpy(priv
->bssid
, priv
->mac_addr
, ETH_ALEN
);
6932 IWL_DEBUG_MAC80211("bssid was set to: %s\n",
6933 print_mac(mac
, conf
->bssid
));
6935 if (priv
->ibss_beacon
)
6936 dev_kfree_skb(priv
->ibss_beacon
);
6938 priv
->ibss_beacon
= conf
->beacon
;
6941 if (iwl3945_is_rfkill(priv
))
6944 if (conf
->bssid
&& !is_zero_ether_addr(conf
->bssid
) &&
6945 !is_multicast_ether_addr(conf
->bssid
)) {
6946 /* If there is currently a HW scan going on in the background
6947 * then we need to cancel it else the RXON below will fail. */
6948 if (iwl3945_scan_cancel_timeout(priv
, 100)) {
6949 IWL_WARNING("Aborted scan still in progress "
6951 IWL_DEBUG_MAC80211("leaving - scan abort failed.\n");
6952 mutex_unlock(&priv
->mutex
);
6955 memcpy(priv
->staging_rxon
.bssid_addr
, conf
->bssid
, ETH_ALEN
);
6957 /* TODO: Audit driver for usage of these members and see
6958 * if mac80211 deprecates them (priv->bssid looks like it
6959 * shouldn't be there, but I haven't scanned the IBSS code
6960 * to verify) - jpk */
6961 memcpy(priv
->bssid
, conf
->bssid
, ETH_ALEN
);
6963 if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
)
6964 iwl3945_config_ap(priv
);
6966 rc
= iwl3945_commit_rxon(priv
);
6967 if ((priv
->iw_mode
== IEEE80211_IF_TYPE_STA
) && rc
)
6968 iwl3945_add_station(priv
,
6969 priv
->active_rxon
.bssid_addr
, 1, 0);
6973 iwl3945_scan_cancel_timeout(priv
, 100);
6974 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
6975 iwl3945_commit_rxon(priv
);
6979 spin_lock_irqsave(&priv
->lock
, flags
);
6980 if (!conf
->ssid_len
)
6981 memset(priv
->essid
, 0, IW_ESSID_MAX_SIZE
);
6983 memcpy(priv
->essid
, conf
->ssid
, conf
->ssid_len
);
6985 priv
->essid_len
= conf
->ssid_len
;
6986 spin_unlock_irqrestore(&priv
->lock
, flags
);
6988 IWL_DEBUG_MAC80211("leave\n");
6989 mutex_unlock(&priv
->mutex
);
6994 static void iwl3945_configure_filter(struct ieee80211_hw
*hw
,
6995 unsigned int changed_flags
,
6996 unsigned int *total_flags
,
6997 int mc_count
, struct dev_addr_list
*mc_list
)
7001 * see also iwl3945_connection_init_rx_config
7006 static void iwl3945_mac_remove_interface(struct ieee80211_hw
*hw
,
7007 struct ieee80211_if_init_conf
*conf
)
7009 struct iwl3945_priv
*priv
= hw
->priv
;
7011 IWL_DEBUG_MAC80211("enter\n");
7013 mutex_lock(&priv
->mutex
);
7015 if (iwl3945_is_ready_rf(priv
)) {
7016 iwl3945_scan_cancel_timeout(priv
, 100);
7017 cancel_delayed_work(&priv
->post_associate
);
7018 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
7019 iwl3945_commit_rxon(priv
);
7021 if (priv
->vif
== conf
->vif
) {
7023 memset(priv
->bssid
, 0, ETH_ALEN
);
7024 memset(priv
->essid
, 0, IW_ESSID_MAX_SIZE
);
7025 priv
->essid_len
= 0;
7027 mutex_unlock(&priv
->mutex
);
7029 IWL_DEBUG_MAC80211("leave\n");
7032 static int iwl3945_mac_hw_scan(struct ieee80211_hw
*hw
, u8
*ssid
, size_t len
)
7035 unsigned long flags
;
7036 struct iwl3945_priv
*priv
= hw
->priv
;
7038 IWL_DEBUG_MAC80211("enter\n");
7040 mutex_lock(&priv
->mutex
);
7041 spin_lock_irqsave(&priv
->lock
, flags
);
7043 if (!iwl3945_is_ready_rf(priv
)) {
7045 IWL_DEBUG_MAC80211("leave - not ready or exit pending\n");
7049 if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) { /* APs don't scan */
7051 IWL_ERROR("ERROR: APs don't scan\n");
7055 /* we don't schedule scan within next_scan_jiffies period */
7056 if (priv
->next_scan_jiffies
&&
7057 time_after(priv
->next_scan_jiffies
, jiffies
)) {
7061 /* if we just finished scan ask for delay */
7062 if (priv
->last_scan_jiffies
&& time_after(priv
->last_scan_jiffies
+
7063 IWL_DELAY_NEXT_SCAN
, jiffies
)) {
7068 IWL_DEBUG_SCAN("direct scan for %s [%d]\n ",
7069 iwl3945_escape_essid(ssid
, len
), (int)len
);
7071 priv
->one_direct_scan
= 1;
7072 priv
->direct_ssid_len
= (u8
)
7073 min((u8
) len
, (u8
) IW_ESSID_MAX_SIZE
);
7074 memcpy(priv
->direct_ssid
, ssid
, priv
->direct_ssid_len
);
7076 priv
->one_direct_scan
= 0;
7078 rc
= iwl3945_scan_initiate(priv
);
7080 IWL_DEBUG_MAC80211("leave\n");
7083 spin_unlock_irqrestore(&priv
->lock
, flags
);
7084 mutex_unlock(&priv
->mutex
);
7089 static int iwl3945_mac_set_key(struct ieee80211_hw
*hw
, enum set_key_cmd cmd
,
7090 const u8
*local_addr
, const u8
*addr
,
7091 struct ieee80211_key_conf
*key
)
7093 struct iwl3945_priv
*priv
= hw
->priv
;
7097 IWL_DEBUG_MAC80211("enter\n");
7099 if (!iwl3945_param_hwcrypto
) {
7100 IWL_DEBUG_MAC80211("leave - hwcrypto disabled\n");
7104 if (is_zero_ether_addr(addr
))
7105 /* only support pairwise keys */
7108 sta_id
= iwl3945_hw_find_station(priv
, addr
);
7109 if (sta_id
== IWL_INVALID_STATION
) {
7110 DECLARE_MAC_BUF(mac
);
7112 IWL_DEBUG_MAC80211("leave - %s not in station map.\n",
7113 print_mac(mac
, addr
));
7117 mutex_lock(&priv
->mutex
);
7119 iwl3945_scan_cancel_timeout(priv
, 100);
7123 rc
= iwl3945_update_sta_key_info(priv
, key
, sta_id
);
7125 iwl3945_set_rxon_hwcrypto(priv
, 1);
7126 iwl3945_commit_rxon(priv
);
7127 key
->hw_key_idx
= sta_id
;
7128 IWL_DEBUG_MAC80211("set_key success, using hwcrypto\n");
7129 key
->flags
|= IEEE80211_KEY_FLAG_GENERATE_IV
;
7133 rc
= iwl3945_clear_sta_key_info(priv
, sta_id
);
7135 iwl3945_set_rxon_hwcrypto(priv
, 0);
7136 iwl3945_commit_rxon(priv
);
7137 IWL_DEBUG_MAC80211("disable hwcrypto key\n");
7144 IWL_DEBUG_MAC80211("leave\n");
7145 mutex_unlock(&priv
->mutex
);
7150 static int iwl3945_mac_conf_tx(struct ieee80211_hw
*hw
, int queue
,
7151 const struct ieee80211_tx_queue_params
*params
)
7153 struct iwl3945_priv
*priv
= hw
->priv
;
7154 unsigned long flags
;
7157 IWL_DEBUG_MAC80211("enter\n");
7159 if (!iwl3945_is_ready_rf(priv
)) {
7160 IWL_DEBUG_MAC80211("leave - RF not ready\n");
7164 if (queue
>= AC_NUM
) {
7165 IWL_DEBUG_MAC80211("leave - queue >= AC_NUM %d\n", queue
);
7169 if (!priv
->qos_data
.qos_enable
) {
7170 priv
->qos_data
.qos_active
= 0;
7171 IWL_DEBUG_MAC80211("leave - qos not enabled\n");
7174 q
= AC_NUM
- 1 - queue
;
7176 spin_lock_irqsave(&priv
->lock
, flags
);
7178 priv
->qos_data
.def_qos_parm
.ac
[q
].cw_min
= cpu_to_le16(params
->cw_min
);
7179 priv
->qos_data
.def_qos_parm
.ac
[q
].cw_max
= cpu_to_le16(params
->cw_max
);
7180 priv
->qos_data
.def_qos_parm
.ac
[q
].aifsn
= params
->aifs
;
7181 priv
->qos_data
.def_qos_parm
.ac
[q
].edca_txop
=
7182 cpu_to_le16((params
->txop
* 32));
7184 priv
->qos_data
.def_qos_parm
.ac
[q
].reserved1
= 0;
7185 priv
->qos_data
.qos_active
= 1;
7187 spin_unlock_irqrestore(&priv
->lock
, flags
);
7189 mutex_lock(&priv
->mutex
);
7190 if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
)
7191 iwl3945_activate_qos(priv
, 1);
7192 else if (priv
->assoc_id
&& iwl3945_is_associated(priv
))
7193 iwl3945_activate_qos(priv
, 0);
7195 mutex_unlock(&priv
->mutex
);
7197 IWL_DEBUG_MAC80211("leave\n");
7201 static int iwl3945_mac_get_tx_stats(struct ieee80211_hw
*hw
,
7202 struct ieee80211_tx_queue_stats
*stats
)
7204 struct iwl3945_priv
*priv
= hw
->priv
;
7206 struct iwl3945_tx_queue
*txq
;
7207 struct iwl3945_queue
*q
;
7208 unsigned long flags
;
7210 IWL_DEBUG_MAC80211("enter\n");
7212 if (!iwl3945_is_ready_rf(priv
)) {
7213 IWL_DEBUG_MAC80211("leave - RF not ready\n");
7217 spin_lock_irqsave(&priv
->lock
, flags
);
7219 for (i
= 0; i
< AC_NUM
; i
++) {
7220 txq
= &priv
->txq
[i
];
7222 avail
= iwl3945_queue_space(q
);
7224 stats
->data
[i
].len
= q
->n_window
- avail
;
7225 stats
->data
[i
].limit
= q
->n_window
- q
->high_mark
;
7226 stats
->data
[i
].count
= q
->n_window
;
7229 spin_unlock_irqrestore(&priv
->lock
, flags
);
7231 IWL_DEBUG_MAC80211("leave\n");
7236 static int iwl3945_mac_get_stats(struct ieee80211_hw
*hw
,
7237 struct ieee80211_low_level_stats
*stats
)
7239 IWL_DEBUG_MAC80211("enter\n");
7240 IWL_DEBUG_MAC80211("leave\n");
7245 static u64
iwl3945_mac_get_tsf(struct ieee80211_hw
*hw
)
7247 IWL_DEBUG_MAC80211("enter\n");
7248 IWL_DEBUG_MAC80211("leave\n");
7253 static void iwl3945_mac_reset_tsf(struct ieee80211_hw
*hw
)
7255 struct iwl3945_priv
*priv
= hw
->priv
;
7256 unsigned long flags
;
7258 mutex_lock(&priv
->mutex
);
7259 IWL_DEBUG_MAC80211("enter\n");
7261 iwl3945_reset_qos(priv
);
7263 cancel_delayed_work(&priv
->post_associate
);
7265 spin_lock_irqsave(&priv
->lock
, flags
);
7267 priv
->assoc_capability
= 0;
7268 priv
->call_post_assoc_from_beacon
= 0;
7270 /* new association get rid of ibss beacon skb */
7271 if (priv
->ibss_beacon
)
7272 dev_kfree_skb(priv
->ibss_beacon
);
7274 priv
->ibss_beacon
= NULL
;
7276 priv
->beacon_int
= priv
->hw
->conf
.beacon_int
;
7277 priv
->timestamp1
= 0;
7278 priv
->timestamp0
= 0;
7279 if ((priv
->iw_mode
== IEEE80211_IF_TYPE_STA
))
7280 priv
->beacon_int
= 0;
7282 spin_unlock_irqrestore(&priv
->lock
, flags
);
7284 if (!iwl3945_is_ready_rf(priv
)) {
7285 IWL_DEBUG_MAC80211("leave - not ready\n");
7286 mutex_unlock(&priv
->mutex
);
7290 /* we are restarting association process
7291 * clear RXON_FILTER_ASSOC_MSK bit
7293 if (priv
->iw_mode
!= IEEE80211_IF_TYPE_AP
) {
7294 iwl3945_scan_cancel_timeout(priv
, 100);
7295 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
7296 iwl3945_commit_rxon(priv
);
7299 /* Per mac80211.h: This is only used in IBSS mode... */
7300 if (priv
->iw_mode
!= IEEE80211_IF_TYPE_IBSS
) {
7302 IWL_DEBUG_MAC80211("leave - not in IBSS\n");
7303 mutex_unlock(&priv
->mutex
);
7307 iwl3945_set_rate(priv
);
7309 mutex_unlock(&priv
->mutex
);
7311 IWL_DEBUG_MAC80211("leave\n");
7315 static int iwl3945_mac_beacon_update(struct ieee80211_hw
*hw
, struct sk_buff
*skb
,
7316 struct ieee80211_tx_control
*control
)
7318 struct iwl3945_priv
*priv
= hw
->priv
;
7319 unsigned long flags
;
7321 mutex_lock(&priv
->mutex
);
7322 IWL_DEBUG_MAC80211("enter\n");
7324 if (!iwl3945_is_ready_rf(priv
)) {
7325 IWL_DEBUG_MAC80211("leave - RF not ready\n");
7326 mutex_unlock(&priv
->mutex
);
7330 if (priv
->iw_mode
!= IEEE80211_IF_TYPE_IBSS
) {
7331 IWL_DEBUG_MAC80211("leave - not IBSS\n");
7332 mutex_unlock(&priv
->mutex
);
7336 spin_lock_irqsave(&priv
->lock
, flags
);
7338 if (priv
->ibss_beacon
)
7339 dev_kfree_skb(priv
->ibss_beacon
);
7341 priv
->ibss_beacon
= skb
;
7345 IWL_DEBUG_MAC80211("leave\n");
7346 spin_unlock_irqrestore(&priv
->lock
, flags
);
7348 iwl3945_reset_qos(priv
);
7350 queue_work(priv
->workqueue
, &priv
->post_associate
.work
);
7352 mutex_unlock(&priv
->mutex
);
7357 /*****************************************************************************
7361 *****************************************************************************/
7363 #ifdef CONFIG_IWL3945_DEBUG
7366 * The following adds a new attribute to the sysfs representation
7367 * of this device driver (i.e. a new file in /sys/bus/pci/drivers/iwl/)
7368 * used for controlling the debug level.
7370 * See the level definitions in iwl for details.
7373 static ssize_t
show_debug_level(struct device_driver
*d
, char *buf
)
7375 return sprintf(buf
, "0x%08X\n", iwl3945_debug_level
);
7377 static ssize_t
store_debug_level(struct device_driver
*d
,
7378 const char *buf
, size_t count
)
7380 char *p
= (char *)buf
;
7383 val
= simple_strtoul(p
, &p
, 0);
7385 printk(KERN_INFO DRV_NAME
7386 ": %s is not in hex or decimal form.\n", buf
);
7388 iwl3945_debug_level
= val
;
7390 return strnlen(buf
, count
);
7393 static DRIVER_ATTR(debug_level
, S_IWUSR
| S_IRUGO
,
7394 show_debug_level
, store_debug_level
);
7396 #endif /* CONFIG_IWL3945_DEBUG */
7398 static ssize_t
show_rf_kill(struct device
*d
,
7399 struct device_attribute
*attr
, char *buf
)
7402 * 0 - RF kill not enabled
7403 * 1 - SW based RF kill active (sysfs)
7404 * 2 - HW based RF kill active
7405 * 3 - Both HW and SW based RF kill active
7407 struct iwl3945_priv
*priv
= (struct iwl3945_priv
*)d
->driver_data
;
7408 int val
= (test_bit(STATUS_RF_KILL_SW
, &priv
->status
) ? 0x1 : 0x0) |
7409 (test_bit(STATUS_RF_KILL_HW
, &priv
->status
) ? 0x2 : 0x0);
7411 return sprintf(buf
, "%i\n", val
);
7414 static ssize_t
store_rf_kill(struct device
*d
,
7415 struct device_attribute
*attr
,
7416 const char *buf
, size_t count
)
7418 struct iwl3945_priv
*priv
= (struct iwl3945_priv
*)d
->driver_data
;
7420 mutex_lock(&priv
->mutex
);
7421 iwl3945_radio_kill_sw(priv
, buf
[0] == '1');
7422 mutex_unlock(&priv
->mutex
);
7427 static DEVICE_ATTR(rf_kill
, S_IWUSR
| S_IRUGO
, show_rf_kill
, store_rf_kill
);
7429 static ssize_t
show_temperature(struct device
*d
,
7430 struct device_attribute
*attr
, char *buf
)
7432 struct iwl3945_priv
*priv
= (struct iwl3945_priv
*)d
->driver_data
;
7434 if (!iwl3945_is_alive(priv
))
7437 return sprintf(buf
, "%d\n", iwl3945_hw_get_temperature(priv
));
7440 static DEVICE_ATTR(temperature
, S_IRUGO
, show_temperature
, NULL
);
7442 static ssize_t
show_rs_window(struct device
*d
,
7443 struct device_attribute
*attr
,
7446 struct iwl3945_priv
*priv
= d
->driver_data
;
7447 return iwl3945_fill_rs_info(priv
->hw
, buf
, IWL_AP_ID
);
7449 static DEVICE_ATTR(rs_window
, S_IRUGO
, show_rs_window
, NULL
);
7451 static ssize_t
show_tx_power(struct device
*d
,
7452 struct device_attribute
*attr
, char *buf
)
7454 struct iwl3945_priv
*priv
= (struct iwl3945_priv
*)d
->driver_data
;
7455 return sprintf(buf
, "%d\n", priv
->user_txpower_limit
);
7458 static ssize_t
store_tx_power(struct device
*d
,
7459 struct device_attribute
*attr
,
7460 const char *buf
, size_t count
)
7462 struct iwl3945_priv
*priv
= (struct iwl3945_priv
*)d
->driver_data
;
7463 char *p
= (char *)buf
;
7466 val
= simple_strtoul(p
, &p
, 10);
7468 printk(KERN_INFO DRV_NAME
7469 ": %s is not in decimal form.\n", buf
);
7471 iwl3945_hw_reg_set_txpower(priv
, val
);
7476 static DEVICE_ATTR(tx_power
, S_IWUSR
| S_IRUGO
, show_tx_power
, store_tx_power
);
7478 static ssize_t
show_flags(struct device
*d
,
7479 struct device_attribute
*attr
, char *buf
)
7481 struct iwl3945_priv
*priv
= (struct iwl3945_priv
*)d
->driver_data
;
7483 return sprintf(buf
, "0x%04X\n", priv
->active_rxon
.flags
);
7486 static ssize_t
store_flags(struct device
*d
,
7487 struct device_attribute
*attr
,
7488 const char *buf
, size_t count
)
7490 struct iwl3945_priv
*priv
= (struct iwl3945_priv
*)d
->driver_data
;
7491 u32 flags
= simple_strtoul(buf
, NULL
, 0);
7493 mutex_lock(&priv
->mutex
);
7494 if (le32_to_cpu(priv
->staging_rxon
.flags
) != flags
) {
7495 /* Cancel any currently running scans... */
7496 if (iwl3945_scan_cancel_timeout(priv
, 100))
7497 IWL_WARNING("Could not cancel scan.\n");
7499 IWL_DEBUG_INFO("Committing rxon.flags = 0x%04X\n",
7501 priv
->staging_rxon
.flags
= cpu_to_le32(flags
);
7502 iwl3945_commit_rxon(priv
);
7505 mutex_unlock(&priv
->mutex
);
7510 static DEVICE_ATTR(flags
, S_IWUSR
| S_IRUGO
, show_flags
, store_flags
);
7512 static ssize_t
show_filter_flags(struct device
*d
,
7513 struct device_attribute
*attr
, char *buf
)
7515 struct iwl3945_priv
*priv
= (struct iwl3945_priv
*)d
->driver_data
;
7517 return sprintf(buf
, "0x%04X\n",
7518 le32_to_cpu(priv
->active_rxon
.filter_flags
));
7521 static ssize_t
store_filter_flags(struct device
*d
,
7522 struct device_attribute
*attr
,
7523 const char *buf
, size_t count
)
7525 struct iwl3945_priv
*priv
= (struct iwl3945_priv
*)d
->driver_data
;
7526 u32 filter_flags
= simple_strtoul(buf
, NULL
, 0);
7528 mutex_lock(&priv
->mutex
);
7529 if (le32_to_cpu(priv
->staging_rxon
.filter_flags
) != filter_flags
) {
7530 /* Cancel any currently running scans... */
7531 if (iwl3945_scan_cancel_timeout(priv
, 100))
7532 IWL_WARNING("Could not cancel scan.\n");
7534 IWL_DEBUG_INFO("Committing rxon.filter_flags = "
7535 "0x%04X\n", filter_flags
);
7536 priv
->staging_rxon
.filter_flags
=
7537 cpu_to_le32(filter_flags
);
7538 iwl3945_commit_rxon(priv
);
7541 mutex_unlock(&priv
->mutex
);
7546 static DEVICE_ATTR(filter_flags
, S_IWUSR
| S_IRUGO
, show_filter_flags
,
7547 store_filter_flags
);
7549 #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT
7551 static ssize_t
show_measurement(struct device
*d
,
7552 struct device_attribute
*attr
, char *buf
)
7554 struct iwl3945_priv
*priv
= dev_get_drvdata(d
);
7555 struct iwl3945_spectrum_notification measure_report
;
7556 u32 size
= sizeof(measure_report
), len
= 0, ofs
= 0;
7557 u8
*data
= (u8
*) & measure_report
;
7558 unsigned long flags
;
7560 spin_lock_irqsave(&priv
->lock
, flags
);
7561 if (!(priv
->measurement_status
& MEASUREMENT_READY
)) {
7562 spin_unlock_irqrestore(&priv
->lock
, flags
);
7565 memcpy(&measure_report
, &priv
->measure_report
, size
);
7566 priv
->measurement_status
= 0;
7567 spin_unlock_irqrestore(&priv
->lock
, flags
);
7569 while (size
&& (PAGE_SIZE
- len
)) {
7570 hex_dump_to_buffer(data
+ ofs
, size
, 16, 1, buf
+ len
,
7571 PAGE_SIZE
- len
, 1);
7573 if (PAGE_SIZE
- len
)
7577 size
-= min(size
, 16U);
7583 static ssize_t
store_measurement(struct device
*d
,
7584 struct device_attribute
*attr
,
7585 const char *buf
, size_t count
)
7587 struct iwl3945_priv
*priv
= dev_get_drvdata(d
);
7588 struct ieee80211_measurement_params params
= {
7589 .channel
= le16_to_cpu(priv
->active_rxon
.channel
),
7590 .start_time
= cpu_to_le64(priv
->last_tsf
),
7591 .duration
= cpu_to_le16(1),
7593 u8 type
= IWL_MEASURE_BASIC
;
7599 strncpy(buffer
, buf
, min(sizeof(buffer
), count
));
7600 channel
= simple_strtoul(p
, NULL
, 0);
7602 params
.channel
= channel
;
7605 while (*p
&& *p
!= ' ')
7608 type
= simple_strtoul(p
+ 1, NULL
, 0);
7611 IWL_DEBUG_INFO("Invoking measurement of type %d on "
7612 "channel %d (for '%s')\n", type
, params
.channel
, buf
);
7613 iwl3945_get_measurement(priv
, ¶ms
, type
);
7618 static DEVICE_ATTR(measurement
, S_IRUSR
| S_IWUSR
,
7619 show_measurement
, store_measurement
);
7620 #endif /* CONFIG_IWL3945_SPECTRUM_MEASUREMENT */
7622 static ssize_t
store_retry_rate(struct device
*d
,
7623 struct device_attribute
*attr
,
7624 const char *buf
, size_t count
)
7626 struct iwl3945_priv
*priv
= dev_get_drvdata(d
);
7628 priv
->retry_rate
= simple_strtoul(buf
, NULL
, 0);
7629 if (priv
->retry_rate
<= 0)
7630 priv
->retry_rate
= 1;
7635 static ssize_t
show_retry_rate(struct device
*d
,
7636 struct device_attribute
*attr
, char *buf
)
7638 struct iwl3945_priv
*priv
= dev_get_drvdata(d
);
7639 return sprintf(buf
, "%d", priv
->retry_rate
);
7642 static DEVICE_ATTR(retry_rate
, S_IWUSR
| S_IRUSR
, show_retry_rate
,
7645 static ssize_t
store_power_level(struct device
*d
,
7646 struct device_attribute
*attr
,
7647 const char *buf
, size_t count
)
7649 struct iwl3945_priv
*priv
= dev_get_drvdata(d
);
7653 mode
= simple_strtoul(buf
, NULL
, 0);
7654 mutex_lock(&priv
->mutex
);
7656 if (!iwl3945_is_ready(priv
)) {
7661 if ((mode
< 1) || (mode
> IWL_POWER_LIMIT
) || (mode
== IWL_POWER_AC
))
7662 mode
= IWL_POWER_AC
;
7664 mode
|= IWL_POWER_ENABLED
;
7666 if (mode
!= priv
->power_mode
) {
7667 rc
= iwl3945_send_power_mode(priv
, IWL_POWER_LEVEL(mode
));
7669 IWL_DEBUG_MAC80211("failed setting power mode.\n");
7672 priv
->power_mode
= mode
;
7678 mutex_unlock(&priv
->mutex
);
7682 #define MAX_WX_STRING 80
7684 /* Values are in microsecond */
7685 static const s32 timeout_duration
[] = {
7692 static const s32 period_duration
[] = {
7700 static ssize_t
show_power_level(struct device
*d
,
7701 struct device_attribute
*attr
, char *buf
)
7703 struct iwl3945_priv
*priv
= dev_get_drvdata(d
);
7704 int level
= IWL_POWER_LEVEL(priv
->power_mode
);
7707 p
+= sprintf(p
, "%d ", level
);
7709 case IWL_POWER_MODE_CAM
:
7711 p
+= sprintf(p
, "(AC)");
7713 case IWL_POWER_BATTERY
:
7714 p
+= sprintf(p
, "(BATTERY)");
7718 "(Timeout %dms, Period %dms)",
7719 timeout_duration
[level
- 1] / 1000,
7720 period_duration
[level
- 1] / 1000);
7723 if (!(priv
->power_mode
& IWL_POWER_ENABLED
))
7724 p
+= sprintf(p
, " OFF\n");
7726 p
+= sprintf(p
, " \n");
7728 return (p
- buf
+ 1);
7732 static DEVICE_ATTR(power_level
, S_IWUSR
| S_IRUSR
, show_power_level
,
7735 static ssize_t
show_channels(struct device
*d
,
7736 struct device_attribute
*attr
, char *buf
)
7738 /* all this shit doesn't belong into sysfs anyway */
7742 static DEVICE_ATTR(channels
, S_IRUSR
, show_channels
, NULL
);
7744 static ssize_t
show_statistics(struct device
*d
,
7745 struct device_attribute
*attr
, char *buf
)
7747 struct iwl3945_priv
*priv
= dev_get_drvdata(d
);
7748 u32 size
= sizeof(struct iwl3945_notif_statistics
);
7749 u32 len
= 0, ofs
= 0;
7750 u8
*data
= (u8
*) & priv
->statistics
;
7753 if (!iwl3945_is_alive(priv
))
7756 mutex_lock(&priv
->mutex
);
7757 rc
= iwl3945_send_statistics_request(priv
);
7758 mutex_unlock(&priv
->mutex
);
7762 "Error sending statistics request: 0x%08X\n", rc
);
7766 while (size
&& (PAGE_SIZE
- len
)) {
7767 hex_dump_to_buffer(data
+ ofs
, size
, 16, 1, buf
+ len
,
7768 PAGE_SIZE
- len
, 1);
7770 if (PAGE_SIZE
- len
)
7774 size
-= min(size
, 16U);
7780 static DEVICE_ATTR(statistics
, S_IRUGO
, show_statistics
, NULL
);
7782 static ssize_t
show_antenna(struct device
*d
,
7783 struct device_attribute
*attr
, char *buf
)
7785 struct iwl3945_priv
*priv
= dev_get_drvdata(d
);
7787 if (!iwl3945_is_alive(priv
))
7790 return sprintf(buf
, "%d\n", priv
->antenna
);
7793 static ssize_t
store_antenna(struct device
*d
,
7794 struct device_attribute
*attr
,
7795 const char *buf
, size_t count
)
7798 struct iwl3945_priv
*priv
= dev_get_drvdata(d
);
7803 if (sscanf(buf
, "%1i", &ant
) != 1) {
7804 IWL_DEBUG_INFO("not in hex or decimal form.\n");
7808 if ((ant
>= 0) && (ant
<= 2)) {
7809 IWL_DEBUG_INFO("Setting antenna select to %d.\n", ant
);
7810 priv
->antenna
= (enum iwl3945_antenna
)ant
;
7812 IWL_DEBUG_INFO("Bad antenna select value %d.\n", ant
);
7818 static DEVICE_ATTR(antenna
, S_IWUSR
| S_IRUGO
, show_antenna
, store_antenna
);
7820 static ssize_t
show_status(struct device
*d
,
7821 struct device_attribute
*attr
, char *buf
)
7823 struct iwl3945_priv
*priv
= (struct iwl3945_priv
*)d
->driver_data
;
7824 if (!iwl3945_is_alive(priv
))
7826 return sprintf(buf
, "0x%08x\n", (int)priv
->status
);
7829 static DEVICE_ATTR(status
, S_IRUGO
, show_status
, NULL
);
7831 static ssize_t
dump_error_log(struct device
*d
,
7832 struct device_attribute
*attr
,
7833 const char *buf
, size_t count
)
7835 char *p
= (char *)buf
;
7838 iwl3945_dump_nic_error_log((struct iwl3945_priv
*)d
->driver_data
);
7840 return strnlen(buf
, count
);
7843 static DEVICE_ATTR(dump_errors
, S_IWUSR
, NULL
, dump_error_log
);
7845 static ssize_t
dump_event_log(struct device
*d
,
7846 struct device_attribute
*attr
,
7847 const char *buf
, size_t count
)
7849 char *p
= (char *)buf
;
7852 iwl3945_dump_nic_event_log((struct iwl3945_priv
*)d
->driver_data
);
7854 return strnlen(buf
, count
);
7857 static DEVICE_ATTR(dump_events
, S_IWUSR
, NULL
, dump_event_log
);
7859 /*****************************************************************************
7861 * driver setup and teardown
7863 *****************************************************************************/
7865 static void iwl3945_setup_deferred_work(struct iwl3945_priv
*priv
)
7867 priv
->workqueue
= create_workqueue(DRV_NAME
);
7869 init_waitqueue_head(&priv
->wait_command_queue
);
7871 INIT_WORK(&priv
->up
, iwl3945_bg_up
);
7872 INIT_WORK(&priv
->restart
, iwl3945_bg_restart
);
7873 INIT_WORK(&priv
->rx_replenish
, iwl3945_bg_rx_replenish
);
7874 INIT_WORK(&priv
->scan_completed
, iwl3945_bg_scan_completed
);
7875 INIT_WORK(&priv
->request_scan
, iwl3945_bg_request_scan
);
7876 INIT_WORK(&priv
->abort_scan
, iwl3945_bg_abort_scan
);
7877 INIT_WORK(&priv
->rf_kill
, iwl3945_bg_rf_kill
);
7878 INIT_WORK(&priv
->beacon_update
, iwl3945_bg_beacon_update
);
7879 INIT_DELAYED_WORK(&priv
->post_associate
, iwl3945_bg_post_associate
);
7880 INIT_DELAYED_WORK(&priv
->init_alive_start
, iwl3945_bg_init_alive_start
);
7881 INIT_DELAYED_WORK(&priv
->alive_start
, iwl3945_bg_alive_start
);
7882 INIT_DELAYED_WORK(&priv
->scan_check
, iwl3945_bg_scan_check
);
7884 iwl3945_hw_setup_deferred_work(priv
);
7886 tasklet_init(&priv
->irq_tasklet
, (void (*)(unsigned long))
7887 iwl3945_irq_tasklet
, (unsigned long)priv
);
7890 static void iwl3945_cancel_deferred_work(struct iwl3945_priv
*priv
)
7892 iwl3945_hw_cancel_deferred_work(priv
);
7894 cancel_delayed_work_sync(&priv
->init_alive_start
);
7895 cancel_delayed_work(&priv
->scan_check
);
7896 cancel_delayed_work(&priv
->alive_start
);
7897 cancel_delayed_work(&priv
->post_associate
);
7898 cancel_work_sync(&priv
->beacon_update
);
7901 static struct attribute
*iwl3945_sysfs_entries
[] = {
7902 &dev_attr_antenna
.attr
,
7903 &dev_attr_channels
.attr
,
7904 &dev_attr_dump_errors
.attr
,
7905 &dev_attr_dump_events
.attr
,
7906 &dev_attr_flags
.attr
,
7907 &dev_attr_filter_flags
.attr
,
7908 #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT
7909 &dev_attr_measurement
.attr
,
7911 &dev_attr_power_level
.attr
,
7912 &dev_attr_retry_rate
.attr
,
7913 &dev_attr_rf_kill
.attr
,
7914 &dev_attr_rs_window
.attr
,
7915 &dev_attr_statistics
.attr
,
7916 &dev_attr_status
.attr
,
7917 &dev_attr_temperature
.attr
,
7918 &dev_attr_tx_power
.attr
,
7923 static struct attribute_group iwl3945_attribute_group
= {
7924 .name
= NULL
, /* put in device directory */
7925 .attrs
= iwl3945_sysfs_entries
,
7928 static struct ieee80211_ops iwl3945_hw_ops
= {
7929 .tx
= iwl3945_mac_tx
,
7930 .start
= iwl3945_mac_start
,
7931 .stop
= iwl3945_mac_stop
,
7932 .add_interface
= iwl3945_mac_add_interface
,
7933 .remove_interface
= iwl3945_mac_remove_interface
,
7934 .config
= iwl3945_mac_config
,
7935 .config_interface
= iwl3945_mac_config_interface
,
7936 .configure_filter
= iwl3945_configure_filter
,
7937 .set_key
= iwl3945_mac_set_key
,
7938 .get_stats
= iwl3945_mac_get_stats
,
7939 .get_tx_stats
= iwl3945_mac_get_tx_stats
,
7940 .conf_tx
= iwl3945_mac_conf_tx
,
7941 .get_tsf
= iwl3945_mac_get_tsf
,
7942 .reset_tsf
= iwl3945_mac_reset_tsf
,
7943 .beacon_update
= iwl3945_mac_beacon_update
,
7944 .hw_scan
= iwl3945_mac_hw_scan
7947 static int iwl3945_pci_probe(struct pci_dev
*pdev
, const struct pci_device_id
*ent
)
7950 struct iwl3945_priv
*priv
;
7951 struct ieee80211_hw
*hw
;
7952 struct iwl_3945_cfg
*cfg
= (struct iwl_3945_cfg
*)(ent
->driver_data
);
7954 unsigned long flags
;
7955 DECLARE_MAC_BUF(mac
);
7957 /* Disabling hardware scan means that mac80211 will perform scans
7958 * "the hard way", rather than using device's scan. */
7959 if (iwl3945_param_disable_hw_scan
) {
7960 IWL_DEBUG_INFO("Disabling hw_scan\n");
7961 iwl3945_hw_ops
.hw_scan
= NULL
;
7964 if ((iwl3945_param_queues_num
> IWL39_MAX_NUM_QUEUES
) ||
7965 (iwl3945_param_queues_num
< IWL_MIN_NUM_QUEUES
)) {
7966 IWL_ERROR("invalid queues_num, should be between %d and %d\n",
7967 IWL_MIN_NUM_QUEUES
, IWL39_MAX_NUM_QUEUES
);
7972 /* mac80211 allocates memory for this device instance, including
7973 * space for this driver's private structure */
7974 hw
= ieee80211_alloc_hw(sizeof(struct iwl3945_priv
), &iwl3945_hw_ops
);
7976 IWL_ERROR("Can not allocate network device\n");
7980 SET_IEEE80211_DEV(hw
, &pdev
->dev
);
7982 hw
->rate_control_algorithm
= "iwl-3945-rs";
7984 IWL_DEBUG_INFO("*** LOAD DRIVER ***\n");
7988 priv
->pci_dev
= pdev
;
7991 /* Select antenna (may be helpful if only one antenna is connected) */
7992 priv
->antenna
= (enum iwl3945_antenna
)iwl3945_param_antenna
;
7993 #ifdef CONFIG_IWL3945_DEBUG
7994 iwl3945_debug_level
= iwl3945_param_debug
;
7995 atomic_set(&priv
->restrict_refcnt
, 0);
7997 priv
->retry_rate
= 1;
7999 priv
->ibss_beacon
= NULL
;
8001 /* Tell mac80211 and its clients (e.g. Wireless Extensions)
8002 * the range of signal quality values that we'll provide.
8003 * Negative values for level/noise indicate that we'll provide dBm.
8004 * For WE, at least, non-0 values here *enable* display of values
8005 * in app (iwconfig). */
8006 hw
->max_rssi
= -20; /* signal level, negative indicates dBm */
8007 hw
->max_noise
= -20; /* noise level, negative indicates dBm */
8008 hw
->max_signal
= 100; /* link quality indication (%) */
8010 /* Tell mac80211 our Tx characteristics */
8011 hw
->flags
= IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE
;
8013 /* 4 EDCA QOS priorities */
8016 spin_lock_init(&priv
->lock
);
8017 spin_lock_init(&priv
->power_data
.lock
);
8018 spin_lock_init(&priv
->sta_lock
);
8019 spin_lock_init(&priv
->hcmd_lock
);
8021 for (i
= 0; i
< IWL_IBSS_MAC_HASH_SIZE
; i
++)
8022 INIT_LIST_HEAD(&priv
->ibss_mac_hash
[i
]);
8024 INIT_LIST_HEAD(&priv
->free_frames
);
8026 mutex_init(&priv
->mutex
);
8027 if (pci_enable_device(pdev
)) {
8029 goto out_ieee80211_free_hw
;
8032 pci_set_master(pdev
);
8034 /* Clear the driver's (not device's) station table */
8035 iwl3945_clear_stations_table(priv
);
8037 priv
->data_retry_limit
= -1;
8038 priv
->ieee_channels
= NULL
;
8039 priv
->ieee_rates
= NULL
;
8040 priv
->band
= IEEE80211_BAND_2GHZ
;
8042 err
= pci_set_dma_mask(pdev
, DMA_32BIT_MASK
);
8044 err
= pci_set_consistent_dma_mask(pdev
, DMA_32BIT_MASK
);
8046 printk(KERN_WARNING DRV_NAME
": No suitable DMA available.\n");
8047 goto out_pci_disable_device
;
8050 pci_set_drvdata(pdev
, priv
);
8051 err
= pci_request_regions(pdev
, DRV_NAME
);
8053 goto out_pci_disable_device
;
8055 /* We disable the RETRY_TIMEOUT register (0x41) to keep
8056 * PCI Tx retries from interfering with C3 CPU state */
8057 pci_write_config_byte(pdev
, 0x41, 0x00);
8059 priv
->hw_base
= pci_iomap(pdev
, 0, 0);
8060 if (!priv
->hw_base
) {
8062 goto out_pci_release_regions
;
8065 IWL_DEBUG_INFO("pci_resource_len = 0x%08llx\n",
8066 (unsigned long long) pci_resource_len(pdev
, 0));
8067 IWL_DEBUG_INFO("pci_resource_base = %p\n", priv
->hw_base
);
8069 /* Initialize module parameter values here */
8071 /* Disable radio (SW RF KILL) via parameter when loading driver */
8072 if (iwl3945_param_disable
) {
8073 set_bit(STATUS_RF_KILL_SW
, &priv
->status
);
8074 IWL_DEBUG_INFO("Radio disabled.\n");
8077 priv
->iw_mode
= IEEE80211_IF_TYPE_STA
;
8079 printk(KERN_INFO DRV_NAME
8080 ": Detected Intel Wireless WiFi Link %s\n", priv
->cfg
->name
);
8082 /* Device-specific setup */
8083 if (iwl3945_hw_set_hw_setting(priv
)) {
8084 IWL_ERROR("failed to set hw settings\n");
8088 if (iwl3945_param_qos_enable
)
8089 priv
->qos_data
.qos_enable
= 1;
8091 iwl3945_reset_qos(priv
);
8093 priv
->qos_data
.qos_active
= 0;
8094 priv
->qos_data
.qos_cap
.val
= 0;
8096 iwl3945_set_rxon_channel(priv
, IEEE80211_BAND_2GHZ
, 6);
8097 iwl3945_setup_deferred_work(priv
);
8098 iwl3945_setup_rx_handlers(priv
);
8100 priv
->rates_mask
= IWL_RATES_MASK
;
8101 /* If power management is turned on, default to AC mode */
8102 priv
->power_mode
= IWL_POWER_AC
;
8103 priv
->user_txpower_limit
= IWL_DEFAULT_TX_POWER
;
8105 spin_lock_irqsave(&priv
->lock
, flags
);
8106 iwl3945_disable_interrupts(priv
);
8107 spin_unlock_irqrestore(&priv
->lock
, flags
);
8109 err
= sysfs_create_group(&pdev
->dev
.kobj
, &iwl3945_attribute_group
);
8111 IWL_ERROR("failed to create sysfs device attributes\n");
8112 goto out_release_irq
;
8116 iwl3945_set_bit(priv
, CSR_GIO_CHICKEN_BITS
,
8117 CSR_GIO_CHICKEN_BITS_REG_BIT_DIS_L0S_EXIT_TIMER
);
8119 iwl3945_set_bit(priv
, CSR_GP_CNTRL
, CSR_GP_CNTRL_REG_FLAG_INIT_DONE
);
8120 err
= iwl3945_poll_bit(priv
, CSR_GP_CNTRL
,
8121 CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY
,
8122 CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY
, 25000);
8124 IWL_DEBUG_INFO("Failed to init the card\n");
8125 goto out_remove_sysfs
;
8127 /* Read the EEPROM */
8128 err
= iwl3945_eeprom_init(priv
);
8130 IWL_ERROR("Unable to init EEPROM\n");
8131 goto out_remove_sysfs
;
8133 /* MAC Address location in EEPROM same for 3945/4965 */
8134 get_eeprom_mac(priv
, priv
->mac_addr
);
8135 IWL_DEBUG_INFO("MAC address: %s\n", print_mac(mac
, priv
->mac_addr
));
8136 SET_IEEE80211_PERM_ADDR(priv
->hw
, priv
->mac_addr
);
8138 err
= iwl3945_init_channel_map(priv
);
8140 IWL_ERROR("initializing regulatory failed: %d\n", err
);
8141 goto out_remove_sysfs
;
8144 err
= iwl3945_init_geos(priv
);
8146 IWL_ERROR("initializing geos failed: %d\n", err
);
8147 goto out_free_channel_map
;
8150 err
= ieee80211_register_hw(priv
->hw
);
8152 IWL_ERROR("Failed to register network device (error %d)\n", err
);
8156 priv
->hw
->conf
.beacon_int
= 100;
8157 priv
->mac80211_registered
= 1;
8158 pci_save_state(pdev
);
8159 pci_disable_device(pdev
);
8164 iwl3945_free_geos(priv
);
8165 out_free_channel_map
:
8166 iwl3945_free_channel_map(priv
);
8168 sysfs_remove_group(&pdev
->dev
.kobj
, &iwl3945_attribute_group
);
8171 destroy_workqueue(priv
->workqueue
);
8172 priv
->workqueue
= NULL
;
8173 iwl3945_unset_hw_setting(priv
);
8176 pci_iounmap(pdev
, priv
->hw_base
);
8177 out_pci_release_regions
:
8178 pci_release_regions(pdev
);
8179 out_pci_disable_device
:
8180 pci_disable_device(pdev
);
8181 pci_set_drvdata(pdev
, NULL
);
8182 out_ieee80211_free_hw
:
8183 ieee80211_free_hw(priv
->hw
);
8188 static void __devexit
iwl3945_pci_remove(struct pci_dev
*pdev
)
8190 struct iwl3945_priv
*priv
= pci_get_drvdata(pdev
);
8191 struct list_head
*p
, *q
;
8193 unsigned long flags
;
8198 IWL_DEBUG_INFO("*** UNLOAD DRIVER ***\n");
8200 set_bit(STATUS_EXIT_PENDING
, &priv
->status
);
8204 /* make sure we flush any pending irq or
8205 * tasklet for the driver
8207 spin_lock_irqsave(&priv
->lock
, flags
);
8208 iwl3945_disable_interrupts(priv
);
8209 spin_unlock_irqrestore(&priv
->lock
, flags
);
8211 iwl_synchronize_irq(priv
);
8213 /* Free MAC hash list for ADHOC */
8214 for (i
= 0; i
< IWL_IBSS_MAC_HASH_SIZE
; i
++) {
8215 list_for_each_safe(p
, q
, &priv
->ibss_mac_hash
[i
]) {
8217 kfree(list_entry(p
, struct iwl3945_ibss_seq
, list
));
8221 sysfs_remove_group(&pdev
->dev
.kobj
, &iwl3945_attribute_group
);
8223 iwl3945_dealloc_ucode_pci(priv
);
8226 iwl3945_rx_queue_free(priv
, &priv
->rxq
);
8227 iwl3945_hw_txq_ctx_free(priv
);
8229 iwl3945_unset_hw_setting(priv
);
8230 iwl3945_clear_stations_table(priv
);
8232 if (priv
->mac80211_registered
) {
8233 ieee80211_unregister_hw(priv
->hw
);
8236 /*netif_stop_queue(dev); */
8237 flush_workqueue(priv
->workqueue
);
8239 /* ieee80211_unregister_hw calls iwl3945_mac_stop, which flushes
8240 * priv->workqueue... so we can't take down the workqueue
8242 destroy_workqueue(priv
->workqueue
);
8243 priv
->workqueue
= NULL
;
8245 pci_iounmap(pdev
, priv
->hw_base
);
8246 pci_release_regions(pdev
);
8247 pci_disable_device(pdev
);
8248 pci_set_drvdata(pdev
, NULL
);
8250 iwl3945_free_channel_map(priv
);
8251 iwl3945_free_geos(priv
);
8253 if (priv
->ibss_beacon
)
8254 dev_kfree_skb(priv
->ibss_beacon
);
8256 ieee80211_free_hw(priv
->hw
);
8261 static int iwl3945_pci_suspend(struct pci_dev
*pdev
, pm_message_t state
)
8263 struct iwl3945_priv
*priv
= pci_get_drvdata(pdev
);
8265 if (priv
->is_open
) {
8266 set_bit(STATUS_IN_SUSPEND
, &priv
->status
);
8267 iwl3945_mac_stop(priv
->hw
);
8271 pci_set_power_state(pdev
, PCI_D3hot
);
8276 static int iwl3945_pci_resume(struct pci_dev
*pdev
)
8278 struct iwl3945_priv
*priv
= pci_get_drvdata(pdev
);
8280 pci_set_power_state(pdev
, PCI_D0
);
8283 iwl3945_mac_start(priv
->hw
);
8285 clear_bit(STATUS_IN_SUSPEND
, &priv
->status
);
8289 #endif /* CONFIG_PM */
8291 /*****************************************************************************
8293 * driver and module entry point
8295 *****************************************************************************/
8297 static struct pci_driver iwl3945_driver
= {
8299 .id_table
= iwl3945_hw_card_ids
,
8300 .probe
= iwl3945_pci_probe
,
8301 .remove
= __devexit_p(iwl3945_pci_remove
),
8303 .suspend
= iwl3945_pci_suspend
,
8304 .resume
= iwl3945_pci_resume
,
8308 static int __init
iwl3945_init(void)
8312 printk(KERN_INFO DRV_NAME
": " DRV_DESCRIPTION
", " DRV_VERSION
"\n");
8313 printk(KERN_INFO DRV_NAME
": " DRV_COPYRIGHT
"\n");
8315 ret
= iwl3945_rate_control_register();
8317 IWL_ERROR("Unable to register rate control algorithm: %d\n", ret
);
8321 ret
= pci_register_driver(&iwl3945_driver
);
8323 IWL_ERROR("Unable to initialize PCI module\n");
8324 goto error_register
;
8326 #ifdef CONFIG_IWL3945_DEBUG
8327 ret
= driver_create_file(&iwl3945_driver
.driver
, &driver_attr_debug_level
);
8329 IWL_ERROR("Unable to create driver sysfs file\n");
8336 #ifdef CONFIG_IWL3945_DEBUG
8338 pci_unregister_driver(&iwl3945_driver
);
8341 iwl3945_rate_control_unregister();
8345 static void __exit
iwl3945_exit(void)
8347 #ifdef CONFIG_IWL3945_DEBUG
8348 driver_remove_file(&iwl3945_driver
.driver
, &driver_attr_debug_level
);
8350 pci_unregister_driver(&iwl3945_driver
);
8351 iwl3945_rate_control_unregister();
8354 module_param_named(antenna
, iwl3945_param_antenna
, int, 0444);
8355 MODULE_PARM_DESC(antenna
, "select antenna (1=Main, 2=Aux, default 0 [both])");
8356 module_param_named(disable
, iwl3945_param_disable
, int, 0444);
8357 MODULE_PARM_DESC(disable
, "manually disable the radio (default 0 [radio on])");
8358 module_param_named(hwcrypto
, iwl3945_param_hwcrypto
, int, 0444);
8359 MODULE_PARM_DESC(hwcrypto
,
8360 "using hardware crypto engine (default 0 [software])\n");
8361 module_param_named(debug
, iwl3945_param_debug
, int, 0444);
8362 MODULE_PARM_DESC(debug
, "debug output mask");
8363 module_param_named(disable_hw_scan
, iwl3945_param_disable_hw_scan
, int, 0444);
8364 MODULE_PARM_DESC(disable_hw_scan
, "disable hardware scanning (default 0)");
8366 module_param_named(queues_num
, iwl3945_param_queues_num
, int, 0444);
8367 MODULE_PARM_DESC(queues_num
, "number of hw queues.");
8370 module_param_named(qos_enable
, iwl3945_param_qos_enable
, int, 0444);
8371 MODULE_PARM_DESC(qos_enable
, "enable all QoS functionality");
8373 module_exit(iwl3945_exit
);
8374 module_init(iwl3945_init
);