1 /******************************************************************************
3 * Copyright(c) 2003 - 2007 Intel Corporation. All rights reserved.
5 * Portions of this file are derived from the ipw3945 project, as well
6 * as portions of the ieee80211 subsystem header files.
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of version 2 of the GNU General Public License as
10 * published by the Free Software Foundation.
12 * This program is distributed in the hope that it will be useful, but WITHOUT
13 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
17 * You should have received a copy of the GNU General Public License along with
18 * this program; if not, write to the Free Software Foundation, Inc.,
19 * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
21 * The full GNU General Public License is included in this distribution in the
22 * file called LICENSE.
24 * Contact Information:
25 * James P. Ketrenos <ipw2100-admin@linux.intel.com>
26 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
28 *****************************************************************************/
30 #include <linux/kernel.h>
31 #include <linux/module.h>
32 #include <linux/version.h>
33 #include <linux/init.h>
34 #include <linux/pci.h>
35 #include <linux/dma-mapping.h>
36 #include <linux/delay.h>
37 #include <linux/skbuff.h>
38 #include <linux/netdevice.h>
39 #include <linux/wireless.h>
40 #include <linux/firmware.h>
41 #include <linux/etherdevice.h>
42 #include <linux/if_arp.h>
44 #include <net/ieee80211_radiotap.h>
45 #include <net/mac80211.h>
47 #include <asm/div64.h>
50 #include "iwl-helpers.h"
52 #ifdef CONFIG_IWL3945_DEBUG
53 u32 iwl3945_debug_level
;
56 static int iwl3945_tx_queue_update_write_ptr(struct iwl3945_priv
*priv
,
57 struct iwl3945_tx_queue
*txq
);
59 /******************************************************************************
63 ******************************************************************************/
65 /* module parameters */
66 static int iwl3945_param_disable_hw_scan
; /* def: 0 = use 3945's h/w scan */
67 static int iwl3945_param_debug
; /* def: 0 = minimal debug log messages */
68 static int iwl3945_param_disable
; /* def: 0 = enable radio */
69 static int iwl3945_param_antenna
; /* def: 0 = both antennas (use diversity) */
70 int iwl3945_param_hwcrypto
; /* def: 0 = use software encryption */
71 static int iwl3945_param_qos_enable
= 1; /* def: 1 = use quality of service */
72 int iwl3945_param_queues_num
= IWL_MAX_NUM_QUEUES
; /* def: 8 Tx queues */
75 * module name, copyright, version, etc.
76 * NOTE: DRV_NAME is defined in iwlwifi.h for use by iwl-debug.h and printk
79 #define DRV_DESCRIPTION \
80 "Intel(R) PRO/Wireless 3945ABG/BG Network Connection driver for Linux"
82 #ifdef CONFIG_IWL3945_DEBUG
88 #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT
94 #define IWLWIFI_VERSION "1.2.26k" VD VS
95 #define DRV_COPYRIGHT "Copyright(c) 2003-2007 Intel Corporation"
96 #define DRV_VERSION IWLWIFI_VERSION
98 /* Change firmware file name, using "-" and incrementing number,
99 * *only* when uCode interface or architecture changes so that it
100 * is not compatible with earlier drivers.
101 * This number will also appear in << 8 position of 1st dword of uCode file */
102 #define IWL3945_UCODE_API "-1"
104 MODULE_DESCRIPTION(DRV_DESCRIPTION
);
105 MODULE_VERSION(DRV_VERSION
);
106 MODULE_AUTHOR(DRV_COPYRIGHT
);
107 MODULE_LICENSE("GPL");
109 static __le16
*ieee80211_get_qos_ctrl(struct ieee80211_hdr
*hdr
)
111 u16 fc
= le16_to_cpu(hdr
->frame_control
);
112 int hdr_len
= ieee80211_get_hdrlen(fc
);
114 if ((fc
& 0x00cc) == (IEEE80211_STYPE_QOS_DATA
| IEEE80211_FTYPE_DATA
))
115 return (__le16
*) ((u8
*) hdr
+ hdr_len
- QOS_CONTROL_LEN
);
119 static const struct ieee80211_supported_band
*iwl3945_get_band(
120 struct iwl3945_priv
*priv
, enum ieee80211_band band
)
122 return priv
->hw
->wiphy
->bands
[band
];
125 static int iwl3945_is_empty_essid(const char *essid
, int essid_len
)
127 /* Single white space is for Linksys APs */
128 if (essid_len
== 1 && essid
[0] == ' ')
131 /* Otherwise, if the entire essid is 0, we assume it is hidden */
134 if (essid
[essid_len
] != '\0')
141 static const char *iwl3945_escape_essid(const char *essid
, u8 essid_len
)
143 static char escaped
[IW_ESSID_MAX_SIZE
* 2 + 1];
144 const char *s
= essid
;
147 if (iwl3945_is_empty_essid(essid
, essid_len
)) {
148 memcpy(escaped
, "<hidden>", sizeof("<hidden>"));
152 essid_len
= min(essid_len
, (u8
) IW_ESSID_MAX_SIZE
);
153 while (essid_len
--) {
165 static void iwl3945_print_hex_dump(int level
, void *p
, u32 len
)
167 #ifdef CONFIG_IWL3945_DEBUG
168 if (!(iwl3945_debug_level
& level
))
171 print_hex_dump(KERN_DEBUG
, "iwl data: ", DUMP_PREFIX_OFFSET
, 16, 1,
176 /*************** DMA-QUEUE-GENERAL-FUNCTIONS *****
179 * Theory of operation
181 * A Tx or Rx queue resides in host DRAM, and is comprised of a circular buffer
182 * of buffer descriptors, each of which points to one or more data buffers for
183 * the device to read from or fill. Driver and device exchange status of each
184 * queue via "read" and "write" pointers. Driver keeps minimum of 2 empty
185 * entries in each circular buffer, to protect against confusing empty and full
188 * The device reads or writes the data in the queues via the device's several
189 * DMA/FIFO channels. Each queue is mapped to a single DMA channel.
191 * For Tx queue, there are low mark and high mark limits. If, after queuing
192 * the packet for Tx, free space become < low mark, Tx queue stopped. When
193 * reclaiming packets (on 'tx done IRQ), if free space become > high mark,
196 * The 3945 operates with six queues: One receive queue, one transmit queue
197 * (#4) for sending commands to the device firmware, and four transmit queues
198 * (#0-3) for data tx via EDCA. An additional 2 HCCA queues are unused.
199 ***************************************************/
201 static int iwl3945_queue_space(const struct iwl3945_queue
*q
)
203 int s
= q
->read_ptr
- q
->write_ptr
;
205 if (q
->read_ptr
> q
->write_ptr
)
210 /* keep some reserve to not confuse empty and full situations */
218 * iwl3945_queue_inc_wrap - increment queue index, wrap back to beginning
219 * @index -- current index
220 * @n_bd -- total number of entries in queue (must be power of 2)
222 static inline int iwl3945_queue_inc_wrap(int index
, int n_bd
)
224 return ++index
& (n_bd
- 1);
228 * iwl3945_queue_dec_wrap - increment queue index, wrap back to end
229 * @index -- current index
230 * @n_bd -- total number of entries in queue (must be power of 2)
232 static inline int iwl3945_queue_dec_wrap(int index
, int n_bd
)
234 return --index
& (n_bd
- 1);
237 static inline int x2_queue_used(const struct iwl3945_queue
*q
, int i
)
239 return q
->write_ptr
> q
->read_ptr
?
240 (i
>= q
->read_ptr
&& i
< q
->write_ptr
) :
241 !(i
< q
->read_ptr
&& i
>= q
->write_ptr
);
244 static inline u8
get_cmd_index(struct iwl3945_queue
*q
, u32 index
, int is_huge
)
246 /* This is for scan command, the big buffer at end of command array */
248 return q
->n_window
; /* must be power of 2 */
250 /* Otherwise, use normal size buffers */
251 return index
& (q
->n_window
- 1);
255 * iwl3945_queue_init - Initialize queue's high/low-water and read/write indexes
257 static int iwl3945_queue_init(struct iwl3945_priv
*priv
, struct iwl3945_queue
*q
,
258 int count
, int slots_num
, u32 id
)
261 q
->n_window
= slots_num
;
264 /* count must be power-of-two size, otherwise iwl3945_queue_inc_wrap
265 * and iwl3945_queue_dec_wrap are broken. */
266 BUG_ON(!is_power_of_2(count
));
268 /* slots_num must be power-of-two size, otherwise
269 * get_cmd_index is broken. */
270 BUG_ON(!is_power_of_2(slots_num
));
272 q
->low_mark
= q
->n_window
/ 4;
276 q
->high_mark
= q
->n_window
/ 8;
277 if (q
->high_mark
< 2)
280 q
->write_ptr
= q
->read_ptr
= 0;
286 * iwl3945_tx_queue_alloc - Alloc driver data and TFD CB for one Tx/cmd queue
288 static int iwl3945_tx_queue_alloc(struct iwl3945_priv
*priv
,
289 struct iwl3945_tx_queue
*txq
, u32 id
)
291 struct pci_dev
*dev
= priv
->pci_dev
;
293 /* Driver private data, only for Tx (not command) queues,
294 * not shared with device. */
295 if (id
!= IWL_CMD_QUEUE_NUM
) {
296 txq
->txb
= kmalloc(sizeof(txq
->txb
[0]) *
297 TFD_QUEUE_SIZE_MAX
, GFP_KERNEL
);
299 IWL_ERROR("kmalloc for auxiliary BD "
300 "structures failed\n");
306 /* Circular buffer of transmit frame descriptors (TFDs),
307 * shared with device */
308 txq
->bd
= pci_alloc_consistent(dev
,
309 sizeof(txq
->bd
[0]) * TFD_QUEUE_SIZE_MAX
,
313 IWL_ERROR("pci_alloc_consistent(%zd) failed\n",
314 sizeof(txq
->bd
[0]) * TFD_QUEUE_SIZE_MAX
);
331 * iwl3945_tx_queue_init - Allocate and initialize one tx/cmd queue
333 int iwl3945_tx_queue_init(struct iwl3945_priv
*priv
,
334 struct iwl3945_tx_queue
*txq
, int slots_num
, u32 txq_id
)
336 struct pci_dev
*dev
= priv
->pci_dev
;
341 * Alloc buffer array for commands (Tx or other types of commands).
342 * For the command queue (#4), allocate command space + one big
343 * command for scan, since scan command is very huge; the system will
344 * not have two scans at the same time, so only one is needed.
345 * For data Tx queues (all other queues), no super-size command
348 len
= sizeof(struct iwl3945_cmd
) * slots_num
;
349 if (txq_id
== IWL_CMD_QUEUE_NUM
)
350 len
+= IWL_MAX_SCAN_SIZE
;
351 txq
->cmd
= pci_alloc_consistent(dev
, len
, &txq
->dma_addr_cmd
);
355 /* Alloc driver data array and TFD circular buffer */
356 rc
= iwl3945_tx_queue_alloc(priv
, txq
, txq_id
);
358 pci_free_consistent(dev
, len
, txq
->cmd
, txq
->dma_addr_cmd
);
362 txq
->need_update
= 0;
364 /* TFD_QUEUE_SIZE_MAX must be power-of-two size, otherwise
365 * iwl3945_queue_inc_wrap and iwl3945_queue_dec_wrap are broken. */
366 BUILD_BUG_ON(TFD_QUEUE_SIZE_MAX
& (TFD_QUEUE_SIZE_MAX
- 1));
368 /* Initialize queue high/low-water, head/tail indexes */
369 iwl3945_queue_init(priv
, &txq
->q
, TFD_QUEUE_SIZE_MAX
, slots_num
, txq_id
);
371 /* Tell device where to find queue, enable DMA channel. */
372 iwl3945_hw_tx_queue_init(priv
, txq
);
378 * iwl3945_tx_queue_free - Deallocate DMA queue.
379 * @txq: Transmit queue to deallocate.
381 * Empty queue by removing and destroying all BD's.
383 * 0-fill, but do not free "txq" descriptor structure.
385 void iwl3945_tx_queue_free(struct iwl3945_priv
*priv
, struct iwl3945_tx_queue
*txq
)
387 struct iwl3945_queue
*q
= &txq
->q
;
388 struct pci_dev
*dev
= priv
->pci_dev
;
394 /* first, empty all BD's */
395 for (; q
->write_ptr
!= q
->read_ptr
;
396 q
->read_ptr
= iwl3945_queue_inc_wrap(q
->read_ptr
, q
->n_bd
))
397 iwl3945_hw_txq_free_tfd(priv
, txq
);
399 len
= sizeof(struct iwl3945_cmd
) * q
->n_window
;
400 if (q
->id
== IWL_CMD_QUEUE_NUM
)
401 len
+= IWL_MAX_SCAN_SIZE
;
403 /* De-alloc array of command/tx buffers */
404 pci_free_consistent(dev
, len
, txq
->cmd
, txq
->dma_addr_cmd
);
406 /* De-alloc circular buffer of TFDs */
408 pci_free_consistent(dev
, sizeof(struct iwl3945_tfd_frame
) *
409 txq
->q
.n_bd
, txq
->bd
, txq
->q
.dma_addr
);
411 /* De-alloc array of per-TFD driver data */
417 /* 0-fill queue descriptor structure */
418 memset(txq
, 0, sizeof(*txq
));
421 const u8 iwl3945_broadcast_addr
[ETH_ALEN
] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
423 /*************** STATION TABLE MANAGEMENT ****
424 * mac80211 should be examined to determine if sta_info is duplicating
425 * the functionality provided here
428 /**************************************************************/
429 #if 0 /* temporary disable till we add real remove station */
431 * iwl3945_remove_station - Remove driver's knowledge of station.
433 * NOTE: This does not remove station from device's station table.
435 static u8
iwl3945_remove_station(struct iwl3945_priv
*priv
, const u8
*addr
, int is_ap
)
437 int index
= IWL_INVALID_STATION
;
441 spin_lock_irqsave(&priv
->sta_lock
, flags
);
445 else if (is_broadcast_ether_addr(addr
))
446 index
= priv
->hw_setting
.bcast_sta_id
;
448 for (i
= IWL_STA_ID
; i
< priv
->hw_setting
.max_stations
; i
++)
449 if (priv
->stations
[i
].used
&&
450 !compare_ether_addr(priv
->stations
[i
].sta
.sta
.addr
,
456 if (unlikely(index
== IWL_INVALID_STATION
))
459 if (priv
->stations
[index
].used
) {
460 priv
->stations
[index
].used
= 0;
461 priv
->num_stations
--;
464 BUG_ON(priv
->num_stations
< 0);
467 spin_unlock_irqrestore(&priv
->sta_lock
, flags
);
473 * iwl3945_clear_stations_table - Clear the driver's station table
475 * NOTE: This does not clear or otherwise alter the device's station table.
477 static void iwl3945_clear_stations_table(struct iwl3945_priv
*priv
)
481 spin_lock_irqsave(&priv
->sta_lock
, flags
);
483 priv
->num_stations
= 0;
484 memset(priv
->stations
, 0, sizeof(priv
->stations
));
486 spin_unlock_irqrestore(&priv
->sta_lock
, flags
);
490 * iwl3945_add_station - Add station to station tables in driver and device
492 u8
iwl3945_add_station(struct iwl3945_priv
*priv
, const u8
*addr
, int is_ap
, u8 flags
)
495 int index
= IWL_INVALID_STATION
;
496 struct iwl3945_station_entry
*station
;
497 unsigned long flags_spin
;
498 DECLARE_MAC_BUF(mac
);
501 spin_lock_irqsave(&priv
->sta_lock
, flags_spin
);
504 else if (is_broadcast_ether_addr(addr
))
505 index
= priv
->hw_setting
.bcast_sta_id
;
507 for (i
= IWL_STA_ID
; i
< priv
->hw_setting
.max_stations
; i
++) {
508 if (!compare_ether_addr(priv
->stations
[i
].sta
.sta
.addr
,
514 if (!priv
->stations
[i
].used
&&
515 index
== IWL_INVALID_STATION
)
519 /* These two conditions has the same outcome but keep them separate
520 since they have different meaning */
521 if (unlikely(index
== IWL_INVALID_STATION
)) {
522 spin_unlock_irqrestore(&priv
->sta_lock
, flags_spin
);
526 if (priv
->stations
[index
].used
&&
527 !compare_ether_addr(priv
->stations
[index
].sta
.sta
.addr
, addr
)) {
528 spin_unlock_irqrestore(&priv
->sta_lock
, flags_spin
);
532 IWL_DEBUG_ASSOC("Add STA ID %d: %s\n", index
, print_mac(mac
, addr
));
533 station
= &priv
->stations
[index
];
535 priv
->num_stations
++;
537 /* Set up the REPLY_ADD_STA command to send to device */
538 memset(&station
->sta
, 0, sizeof(struct iwl3945_addsta_cmd
));
539 memcpy(station
->sta
.sta
.addr
, addr
, ETH_ALEN
);
540 station
->sta
.mode
= 0;
541 station
->sta
.sta
.sta_id
= index
;
542 station
->sta
.station_flags
= 0;
544 if (priv
->band
== IEEE80211_BAND_5GHZ
)
545 rate
= IWL_RATE_6M_PLCP
;
547 rate
= IWL_RATE_1M_PLCP
;
549 /* Turn on both antennas for the station... */
550 station
->sta
.rate_n_flags
=
551 iwl3945_hw_set_rate_n_flags(rate
, RATE_MCS_ANT_AB_MSK
);
552 station
->current_rate
.rate_n_flags
=
553 le16_to_cpu(station
->sta
.rate_n_flags
);
555 spin_unlock_irqrestore(&priv
->sta_lock
, flags_spin
);
557 /* Add station to device's station table */
558 iwl3945_send_add_station(priv
, &station
->sta
, flags
);
563 /*************** DRIVER STATUS FUNCTIONS *****/
565 static inline int iwl3945_is_ready(struct iwl3945_priv
*priv
)
567 /* The adapter is 'ready' if READY and GEO_CONFIGURED bits are
568 * set but EXIT_PENDING is not */
569 return test_bit(STATUS_READY
, &priv
->status
) &&
570 test_bit(STATUS_GEO_CONFIGURED
, &priv
->status
) &&
571 !test_bit(STATUS_EXIT_PENDING
, &priv
->status
);
574 static inline int iwl3945_is_alive(struct iwl3945_priv
*priv
)
576 return test_bit(STATUS_ALIVE
, &priv
->status
);
579 static inline int iwl3945_is_init(struct iwl3945_priv
*priv
)
581 return test_bit(STATUS_INIT
, &priv
->status
);
584 static inline int iwl3945_is_rfkill(struct iwl3945_priv
*priv
)
586 return test_bit(STATUS_RF_KILL_HW
, &priv
->status
) ||
587 test_bit(STATUS_RF_KILL_SW
, &priv
->status
);
590 static inline int iwl3945_is_ready_rf(struct iwl3945_priv
*priv
)
593 if (iwl3945_is_rfkill(priv
))
596 return iwl3945_is_ready(priv
);
599 /*************** HOST COMMAND QUEUE FUNCTIONS *****/
601 #define IWL_CMD(x) case x : return #x
603 static const char *get_cmd_string(u8 cmd
)
606 IWL_CMD(REPLY_ALIVE
);
607 IWL_CMD(REPLY_ERROR
);
609 IWL_CMD(REPLY_RXON_ASSOC
);
610 IWL_CMD(REPLY_QOS_PARAM
);
611 IWL_CMD(REPLY_RXON_TIMING
);
612 IWL_CMD(REPLY_ADD_STA
);
613 IWL_CMD(REPLY_REMOVE_STA
);
614 IWL_CMD(REPLY_REMOVE_ALL_STA
);
615 IWL_CMD(REPLY_3945_RX
);
617 IWL_CMD(REPLY_RATE_SCALE
);
618 IWL_CMD(REPLY_LEDS_CMD
);
619 IWL_CMD(REPLY_TX_LINK_QUALITY_CMD
);
620 IWL_CMD(RADAR_NOTIFICATION
);
621 IWL_CMD(REPLY_QUIET_CMD
);
622 IWL_CMD(REPLY_CHANNEL_SWITCH
);
623 IWL_CMD(CHANNEL_SWITCH_NOTIFICATION
);
624 IWL_CMD(REPLY_SPECTRUM_MEASUREMENT_CMD
);
625 IWL_CMD(SPECTRUM_MEASURE_NOTIFICATION
);
626 IWL_CMD(POWER_TABLE_CMD
);
627 IWL_CMD(PM_SLEEP_NOTIFICATION
);
628 IWL_CMD(PM_DEBUG_STATISTIC_NOTIFIC
);
629 IWL_CMD(REPLY_SCAN_CMD
);
630 IWL_CMD(REPLY_SCAN_ABORT_CMD
);
631 IWL_CMD(SCAN_START_NOTIFICATION
);
632 IWL_CMD(SCAN_RESULTS_NOTIFICATION
);
633 IWL_CMD(SCAN_COMPLETE_NOTIFICATION
);
634 IWL_CMD(BEACON_NOTIFICATION
);
635 IWL_CMD(REPLY_TX_BEACON
);
636 IWL_CMD(WHO_IS_AWAKE_NOTIFICATION
);
637 IWL_CMD(QUIET_NOTIFICATION
);
638 IWL_CMD(REPLY_TX_PWR_TABLE_CMD
);
639 IWL_CMD(MEASURE_ABORT_NOTIFICATION
);
640 IWL_CMD(REPLY_BT_CONFIG
);
641 IWL_CMD(REPLY_STATISTICS_CMD
);
642 IWL_CMD(STATISTICS_NOTIFICATION
);
643 IWL_CMD(REPLY_CARD_STATE_CMD
);
644 IWL_CMD(CARD_STATE_NOTIFICATION
);
645 IWL_CMD(MISSED_BEACONS_NOTIFICATION
);
652 #define HOST_COMPLETE_TIMEOUT (HZ / 2)
655 * iwl3945_enqueue_hcmd - enqueue a uCode command
656 * @priv: device private data point
657 * @cmd: a point to the ucode command structure
659 * The function returns < 0 values to indicate the operation is
660 * failed. On success, it turns the index (> 0) of command in the
663 static int iwl3945_enqueue_hcmd(struct iwl3945_priv
*priv
, struct iwl3945_host_cmd
*cmd
)
665 struct iwl3945_tx_queue
*txq
= &priv
->txq
[IWL_CMD_QUEUE_NUM
];
666 struct iwl3945_queue
*q
= &txq
->q
;
667 struct iwl3945_tfd_frame
*tfd
;
669 struct iwl3945_cmd
*out_cmd
;
671 u16 fix_size
= (u16
)(cmd
->len
+ sizeof(out_cmd
->hdr
));
672 dma_addr_t phys_addr
;
678 /* If any of the command structures end up being larger than
679 * the TFD_MAX_PAYLOAD_SIZE, and it sent as a 'small' command then
680 * we will need to increase the size of the TFD entries */
681 BUG_ON((fix_size
> TFD_MAX_PAYLOAD_SIZE
) &&
682 !(cmd
->meta
.flags
& CMD_SIZE_HUGE
));
685 if (iwl3945_is_rfkill(priv
)) {
686 IWL_DEBUG_INFO("Not sending command - RF KILL");
690 if (iwl3945_queue_space(q
) < ((cmd
->meta
.flags
& CMD_ASYNC
) ? 2 : 1)) {
691 IWL_ERROR("No space for Tx\n");
695 spin_lock_irqsave(&priv
->hcmd_lock
, flags
);
697 tfd
= &txq
->bd
[q
->write_ptr
];
698 memset(tfd
, 0, sizeof(*tfd
));
700 control_flags
= (u32
*) tfd
;
702 idx
= get_cmd_index(q
, q
->write_ptr
, cmd
->meta
.flags
& CMD_SIZE_HUGE
);
703 out_cmd
= &txq
->cmd
[idx
];
705 out_cmd
->hdr
.cmd
= cmd
->id
;
706 memcpy(&out_cmd
->meta
, &cmd
->meta
, sizeof(cmd
->meta
));
707 memcpy(&out_cmd
->cmd
.payload
, cmd
->data
, cmd
->len
);
709 /* At this point, the out_cmd now has all of the incoming cmd
712 out_cmd
->hdr
.flags
= 0;
713 out_cmd
->hdr
.sequence
= cpu_to_le16(QUEUE_TO_SEQ(IWL_CMD_QUEUE_NUM
) |
714 INDEX_TO_SEQ(q
->write_ptr
));
715 if (out_cmd
->meta
.flags
& CMD_SIZE_HUGE
)
716 out_cmd
->hdr
.sequence
|= cpu_to_le16(SEQ_HUGE_FRAME
);
718 phys_addr
= txq
->dma_addr_cmd
+ sizeof(txq
->cmd
[0]) * idx
+
719 offsetof(struct iwl3945_cmd
, hdr
);
720 iwl3945_hw_txq_attach_buf_to_tfd(priv
, tfd
, phys_addr
, fix_size
);
722 pad
= U32_PAD(cmd
->len
);
723 count
= TFD_CTL_COUNT_GET(*control_flags
);
724 *control_flags
= TFD_CTL_COUNT_SET(count
) | TFD_CTL_PAD_SET(pad
);
726 IWL_DEBUG_HC("Sending command %s (#%x), seq: 0x%04X, "
727 "%d bytes at %d[%d]:%d\n",
728 get_cmd_string(out_cmd
->hdr
.cmd
),
729 out_cmd
->hdr
.cmd
, le16_to_cpu(out_cmd
->hdr
.sequence
),
730 fix_size
, q
->write_ptr
, idx
, IWL_CMD_QUEUE_NUM
);
732 txq
->need_update
= 1;
734 /* Increment and update queue's write index */
735 q
->write_ptr
= iwl3945_queue_inc_wrap(q
->write_ptr
, q
->n_bd
);
736 ret
= iwl3945_tx_queue_update_write_ptr(priv
, txq
);
738 spin_unlock_irqrestore(&priv
->hcmd_lock
, flags
);
739 return ret
? ret
: idx
;
742 static int iwl3945_send_cmd_async(struct iwl3945_priv
*priv
, struct iwl3945_host_cmd
*cmd
)
746 BUG_ON(!(cmd
->meta
.flags
& CMD_ASYNC
));
748 /* An asynchronous command can not expect an SKB to be set. */
749 BUG_ON(cmd
->meta
.flags
& CMD_WANT_SKB
);
751 /* An asynchronous command MUST have a callback. */
752 BUG_ON(!cmd
->meta
.u
.callback
);
754 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
757 ret
= iwl3945_enqueue_hcmd(priv
, cmd
);
759 IWL_ERROR("Error sending %s: iwl3945_enqueue_hcmd failed: %d\n",
760 get_cmd_string(cmd
->id
), ret
);
766 static int iwl3945_send_cmd_sync(struct iwl3945_priv
*priv
, struct iwl3945_host_cmd
*cmd
)
770 static atomic_t entry
= ATOMIC_INIT(0); /* reentrance protection */
772 BUG_ON(cmd
->meta
.flags
& CMD_ASYNC
);
774 /* A synchronous command can not have a callback set. */
775 BUG_ON(cmd
->meta
.u
.callback
!= NULL
);
777 if (atomic_xchg(&entry
, 1)) {
778 IWL_ERROR("Error sending %s: Already sending a host command\n",
779 get_cmd_string(cmd
->id
));
783 set_bit(STATUS_HCMD_ACTIVE
, &priv
->status
);
785 if (cmd
->meta
.flags
& CMD_WANT_SKB
)
786 cmd
->meta
.source
= &cmd
->meta
;
788 cmd_idx
= iwl3945_enqueue_hcmd(priv
, cmd
);
791 IWL_ERROR("Error sending %s: iwl3945_enqueue_hcmd failed: %d\n",
792 get_cmd_string(cmd
->id
), ret
);
796 ret
= wait_event_interruptible_timeout(priv
->wait_command_queue
,
797 !test_bit(STATUS_HCMD_ACTIVE
, &priv
->status
),
798 HOST_COMPLETE_TIMEOUT
);
800 if (test_bit(STATUS_HCMD_ACTIVE
, &priv
->status
)) {
801 IWL_ERROR("Error sending %s: time out after %dms.\n",
802 get_cmd_string(cmd
->id
),
803 jiffies_to_msecs(HOST_COMPLETE_TIMEOUT
));
805 clear_bit(STATUS_HCMD_ACTIVE
, &priv
->status
);
811 if (test_bit(STATUS_RF_KILL_HW
, &priv
->status
)) {
812 IWL_DEBUG_INFO("Command %s aborted: RF KILL Switch\n",
813 get_cmd_string(cmd
->id
));
817 if (test_bit(STATUS_FW_ERROR
, &priv
->status
)) {
818 IWL_DEBUG_INFO("Command %s failed: FW Error\n",
819 get_cmd_string(cmd
->id
));
823 if ((cmd
->meta
.flags
& CMD_WANT_SKB
) && !cmd
->meta
.u
.skb
) {
824 IWL_ERROR("Error: Response NULL in '%s'\n",
825 get_cmd_string(cmd
->id
));
834 if (cmd
->meta
.flags
& CMD_WANT_SKB
) {
835 struct iwl3945_cmd
*qcmd
;
837 /* Cancel the CMD_WANT_SKB flag for the cmd in the
838 * TX cmd queue. Otherwise in case the cmd comes
839 * in later, it will possibly set an invalid
840 * address (cmd->meta.source). */
841 qcmd
= &priv
->txq
[IWL_CMD_QUEUE_NUM
].cmd
[cmd_idx
];
842 qcmd
->meta
.flags
&= ~CMD_WANT_SKB
;
845 if (cmd
->meta
.u
.skb
) {
846 dev_kfree_skb_any(cmd
->meta
.u
.skb
);
847 cmd
->meta
.u
.skb
= NULL
;
850 atomic_set(&entry
, 0);
854 int iwl3945_send_cmd(struct iwl3945_priv
*priv
, struct iwl3945_host_cmd
*cmd
)
856 if (cmd
->meta
.flags
& CMD_ASYNC
)
857 return iwl3945_send_cmd_async(priv
, cmd
);
859 return iwl3945_send_cmd_sync(priv
, cmd
);
862 int iwl3945_send_cmd_pdu(struct iwl3945_priv
*priv
, u8 id
, u16 len
, const void *data
)
864 struct iwl3945_host_cmd cmd
= {
870 return iwl3945_send_cmd_sync(priv
, &cmd
);
873 static int __must_check
iwl3945_send_cmd_u32(struct iwl3945_priv
*priv
, u8 id
, u32 val
)
875 struct iwl3945_host_cmd cmd
= {
881 return iwl3945_send_cmd_sync(priv
, &cmd
);
884 int iwl3945_send_statistics_request(struct iwl3945_priv
*priv
)
886 return iwl3945_send_cmd_u32(priv
, REPLY_STATISTICS_CMD
, 0);
890 * iwl3945_set_rxon_channel - Set the phymode and channel values in staging RXON
891 * @band: 2.4 or 5 GHz band
892 * @channel: Any channel valid for the requested band
894 * In addition to setting the staging RXON, priv->band is also set.
896 * NOTE: Does not commit to the hardware; it sets appropriate bit fields
897 * in the staging RXON flag structure based on the band
899 static int iwl3945_set_rxon_channel(struct iwl3945_priv
*priv
,
900 enum ieee80211_band band
,
903 if (!iwl3945_get_channel_info(priv
, band
, channel
)) {
904 IWL_DEBUG_INFO("Could not set channel to %d [%d]\n",
909 if ((le16_to_cpu(priv
->staging_rxon
.channel
) == channel
) &&
910 (priv
->band
== band
))
913 priv
->staging_rxon
.channel
= cpu_to_le16(channel
);
914 if (band
== IEEE80211_BAND_5GHZ
)
915 priv
->staging_rxon
.flags
&= ~RXON_FLG_BAND_24G_MSK
;
917 priv
->staging_rxon
.flags
|= RXON_FLG_BAND_24G_MSK
;
921 IWL_DEBUG_INFO("Staging channel set to %d [%d]\n", channel
, band
);
927 * iwl3945_check_rxon_cmd - validate RXON structure is valid
929 * NOTE: This is really only useful during development and can eventually
930 * be #ifdef'd out once the driver is stable and folks aren't actively
933 static int iwl3945_check_rxon_cmd(struct iwl3945_rxon_cmd
*rxon
)
938 if (rxon
->flags
& RXON_FLG_BAND_24G_MSK
) {
939 error
|= le32_to_cpu(rxon
->flags
&
940 (RXON_FLG_TGJ_NARROW_BAND_MSK
|
941 RXON_FLG_RADAR_DETECT_MSK
));
943 IWL_WARNING("check 24G fields %d | %d\n",
946 error
|= (rxon
->flags
& RXON_FLG_SHORT_SLOT_MSK
) ?
947 0 : le32_to_cpu(RXON_FLG_SHORT_SLOT_MSK
);
949 IWL_WARNING("check 52 fields %d | %d\n",
951 error
|= le32_to_cpu(rxon
->flags
& RXON_FLG_CCK_MSK
);
953 IWL_WARNING("check 52 CCK %d | %d\n",
956 error
|= (rxon
->node_addr
[0] | rxon
->bssid_addr
[0]) & 0x1;
958 IWL_WARNING("check mac addr %d | %d\n", counter
++, error
);
960 /* make sure basic rates 6Mbps and 1Mbps are supported */
961 error
|= (((rxon
->ofdm_basic_rates
& IWL_RATE_6M_MASK
) == 0) &&
962 ((rxon
->cck_basic_rates
& IWL_RATE_1M_MASK
) == 0));
964 IWL_WARNING("check basic rate %d | %d\n", counter
++, error
);
966 error
|= (le16_to_cpu(rxon
->assoc_id
) > 2007);
968 IWL_WARNING("check assoc id %d | %d\n", counter
++, error
);
970 error
|= ((rxon
->flags
& (RXON_FLG_CCK_MSK
| RXON_FLG_SHORT_SLOT_MSK
))
971 == (RXON_FLG_CCK_MSK
| RXON_FLG_SHORT_SLOT_MSK
));
973 IWL_WARNING("check CCK and short slot %d | %d\n",
976 error
|= ((rxon
->flags
& (RXON_FLG_CCK_MSK
| RXON_FLG_AUTO_DETECT_MSK
))
977 == (RXON_FLG_CCK_MSK
| RXON_FLG_AUTO_DETECT_MSK
));
979 IWL_WARNING("check CCK & auto detect %d | %d\n",
982 error
|= ((rxon
->flags
& (RXON_FLG_AUTO_DETECT_MSK
|
983 RXON_FLG_TGG_PROTECT_MSK
)) == RXON_FLG_TGG_PROTECT_MSK
);
985 IWL_WARNING("check TGG and auto detect %d | %d\n",
988 if ((rxon
->flags
& RXON_FLG_DIS_DIV_MSK
))
989 error
|= ((rxon
->flags
& (RXON_FLG_ANT_B_MSK
|
990 RXON_FLG_ANT_A_MSK
)) == 0);
992 IWL_WARNING("check antenna %d %d\n", counter
++, error
);
995 IWL_WARNING("Tuning to channel %d\n",
996 le16_to_cpu(rxon
->channel
));
999 IWL_ERROR("Not a valid iwl3945_rxon_assoc_cmd field values\n");
1006 * iwl3945_full_rxon_required - check if full RXON (vs RXON_ASSOC) cmd is needed
1007 * @priv: staging_rxon is compared to active_rxon
1009 * If the RXON structure is changing enough to require a new tune,
1010 * or is clearing the RXON_FILTER_ASSOC_MSK, then return 1 to indicate that
1011 * a new tune (full RXON command, rather than RXON_ASSOC cmd) is required.
1013 static int iwl3945_full_rxon_required(struct iwl3945_priv
*priv
)
1016 /* These items are only settable from the full RXON command */
1017 if (!(priv
->active_rxon
.filter_flags
& RXON_FILTER_ASSOC_MSK
) ||
1018 compare_ether_addr(priv
->staging_rxon
.bssid_addr
,
1019 priv
->active_rxon
.bssid_addr
) ||
1020 compare_ether_addr(priv
->staging_rxon
.node_addr
,
1021 priv
->active_rxon
.node_addr
) ||
1022 compare_ether_addr(priv
->staging_rxon
.wlap_bssid_addr
,
1023 priv
->active_rxon
.wlap_bssid_addr
) ||
1024 (priv
->staging_rxon
.dev_type
!= priv
->active_rxon
.dev_type
) ||
1025 (priv
->staging_rxon
.channel
!= priv
->active_rxon
.channel
) ||
1026 (priv
->staging_rxon
.air_propagation
!=
1027 priv
->active_rxon
.air_propagation
) ||
1028 (priv
->staging_rxon
.assoc_id
!= priv
->active_rxon
.assoc_id
))
1031 /* flags, filter_flags, ofdm_basic_rates, and cck_basic_rates can
1032 * be updated with the RXON_ASSOC command -- however only some
1033 * flag transitions are allowed using RXON_ASSOC */
1035 /* Check if we are not switching bands */
1036 if ((priv
->staging_rxon
.flags
& RXON_FLG_BAND_24G_MSK
) !=
1037 (priv
->active_rxon
.flags
& RXON_FLG_BAND_24G_MSK
))
1040 /* Check if we are switching association toggle */
1041 if ((priv
->staging_rxon
.filter_flags
& RXON_FILTER_ASSOC_MSK
) !=
1042 (priv
->active_rxon
.filter_flags
& RXON_FILTER_ASSOC_MSK
))
1048 static int iwl3945_send_rxon_assoc(struct iwl3945_priv
*priv
)
1051 struct iwl3945_rx_packet
*res
= NULL
;
1052 struct iwl3945_rxon_assoc_cmd rxon_assoc
;
1053 struct iwl3945_host_cmd cmd
= {
1054 .id
= REPLY_RXON_ASSOC
,
1055 .len
= sizeof(rxon_assoc
),
1056 .meta
.flags
= CMD_WANT_SKB
,
1057 .data
= &rxon_assoc
,
1059 const struct iwl3945_rxon_cmd
*rxon1
= &priv
->staging_rxon
;
1060 const struct iwl3945_rxon_cmd
*rxon2
= &priv
->active_rxon
;
1062 if ((rxon1
->flags
== rxon2
->flags
) &&
1063 (rxon1
->filter_flags
== rxon2
->filter_flags
) &&
1064 (rxon1
->cck_basic_rates
== rxon2
->cck_basic_rates
) &&
1065 (rxon1
->ofdm_basic_rates
== rxon2
->ofdm_basic_rates
)) {
1066 IWL_DEBUG_INFO("Using current RXON_ASSOC. Not resending.\n");
1070 rxon_assoc
.flags
= priv
->staging_rxon
.flags
;
1071 rxon_assoc
.filter_flags
= priv
->staging_rxon
.filter_flags
;
1072 rxon_assoc
.ofdm_basic_rates
= priv
->staging_rxon
.ofdm_basic_rates
;
1073 rxon_assoc
.cck_basic_rates
= priv
->staging_rxon
.cck_basic_rates
;
1074 rxon_assoc
.reserved
= 0;
1076 rc
= iwl3945_send_cmd_sync(priv
, &cmd
);
1080 res
= (struct iwl3945_rx_packet
*)cmd
.meta
.u
.skb
->data
;
1081 if (res
->hdr
.flags
& IWL_CMD_FAILED_MSK
) {
1082 IWL_ERROR("Bad return from REPLY_RXON_ASSOC command\n");
1086 priv
->alloc_rxb_skb
--;
1087 dev_kfree_skb_any(cmd
.meta
.u
.skb
);
1093 * iwl3945_commit_rxon - commit staging_rxon to hardware
1095 * The RXON command in staging_rxon is committed to the hardware and
1096 * the active_rxon structure is updated with the new data. This
1097 * function correctly transitions out of the RXON_ASSOC_MSK state if
1098 * a HW tune is required based on the RXON structure changes.
1100 static int iwl3945_commit_rxon(struct iwl3945_priv
*priv
)
1102 /* cast away the const for active_rxon in this function */
1103 struct iwl3945_rxon_cmd
*active_rxon
= (void *)&priv
->active_rxon
;
1105 DECLARE_MAC_BUF(mac
);
1107 if (!iwl3945_is_alive(priv
))
1110 /* always get timestamp with Rx frame */
1111 priv
->staging_rxon
.flags
|= RXON_FLG_TSF2HOST_MSK
;
1113 /* select antenna */
1114 priv
->staging_rxon
.flags
&=
1115 ~(RXON_FLG_DIS_DIV_MSK
| RXON_FLG_ANT_SEL_MSK
);
1116 priv
->staging_rxon
.flags
|= iwl3945_get_antenna_flags(priv
);
1118 rc
= iwl3945_check_rxon_cmd(&priv
->staging_rxon
);
1120 IWL_ERROR("Invalid RXON configuration. Not committing.\n");
1124 /* If we don't need to send a full RXON, we can use
1125 * iwl3945_rxon_assoc_cmd which is used to reconfigure filter
1126 * and other flags for the current radio configuration. */
1127 if (!iwl3945_full_rxon_required(priv
)) {
1128 rc
= iwl3945_send_rxon_assoc(priv
);
1130 IWL_ERROR("Error setting RXON_ASSOC "
1131 "configuration (%d).\n", rc
);
1135 memcpy(active_rxon
, &priv
->staging_rxon
, sizeof(*active_rxon
));
1140 /* If we are currently associated and the new config requires
1141 * an RXON_ASSOC and the new config wants the associated mask enabled,
1142 * we must clear the associated from the active configuration
1143 * before we apply the new config */
1144 if (iwl3945_is_associated(priv
) &&
1145 (priv
->staging_rxon
.filter_flags
& RXON_FILTER_ASSOC_MSK
)) {
1146 IWL_DEBUG_INFO("Toggling associated bit on current RXON\n");
1147 active_rxon
->filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
1149 rc
= iwl3945_send_cmd_pdu(priv
, REPLY_RXON
,
1150 sizeof(struct iwl3945_rxon_cmd
),
1151 &priv
->active_rxon
);
1153 /* If the mask clearing failed then we set
1154 * active_rxon back to what it was previously */
1156 active_rxon
->filter_flags
|= RXON_FILTER_ASSOC_MSK
;
1157 IWL_ERROR("Error clearing ASSOC_MSK on current "
1158 "configuration (%d).\n", rc
);
1163 IWL_DEBUG_INFO("Sending RXON\n"
1164 "* with%s RXON_FILTER_ASSOC_MSK\n"
1167 ((priv
->staging_rxon
.filter_flags
&
1168 RXON_FILTER_ASSOC_MSK
) ? "" : "out"),
1169 le16_to_cpu(priv
->staging_rxon
.channel
),
1170 print_mac(mac
, priv
->staging_rxon
.bssid_addr
));
1172 /* Apply the new configuration */
1173 rc
= iwl3945_send_cmd_pdu(priv
, REPLY_RXON
,
1174 sizeof(struct iwl3945_rxon_cmd
), &priv
->staging_rxon
);
1176 IWL_ERROR("Error setting new configuration (%d).\n", rc
);
1180 memcpy(active_rxon
, &priv
->staging_rxon
, sizeof(*active_rxon
));
1182 iwl3945_clear_stations_table(priv
);
1184 /* If we issue a new RXON command which required a tune then we must
1185 * send a new TXPOWER command or we won't be able to Tx any frames */
1186 rc
= iwl3945_hw_reg_send_txpower(priv
);
1188 IWL_ERROR("Error setting Tx power (%d).\n", rc
);
1192 /* Add the broadcast address so we can send broadcast frames */
1193 if (iwl3945_add_station(priv
, iwl3945_broadcast_addr
, 0, 0) ==
1194 IWL_INVALID_STATION
) {
1195 IWL_ERROR("Error adding BROADCAST address for transmit.\n");
1199 /* If we have set the ASSOC_MSK and we are in BSS mode then
1200 * add the IWL_AP_ID to the station rate table */
1201 if (iwl3945_is_associated(priv
) &&
1202 (priv
->iw_mode
== IEEE80211_IF_TYPE_STA
))
1203 if (iwl3945_add_station(priv
, priv
->active_rxon
.bssid_addr
, 1, 0)
1204 == IWL_INVALID_STATION
) {
1205 IWL_ERROR("Error adding AP address for transmit.\n");
1209 /* Init the hardware's rate fallback order based on the band */
1210 rc
= iwl3945_init_hw_rate_table(priv
);
1212 IWL_ERROR("Error setting HW rate table: %02X\n", rc
);
1219 static int iwl3945_send_bt_config(struct iwl3945_priv
*priv
)
1221 struct iwl3945_bt_cmd bt_cmd
= {
1229 return iwl3945_send_cmd_pdu(priv
, REPLY_BT_CONFIG
,
1230 sizeof(struct iwl3945_bt_cmd
), &bt_cmd
);
1233 static int iwl3945_send_scan_abort(struct iwl3945_priv
*priv
)
1236 struct iwl3945_rx_packet
*res
;
1237 struct iwl3945_host_cmd cmd
= {
1238 .id
= REPLY_SCAN_ABORT_CMD
,
1239 .meta
.flags
= CMD_WANT_SKB
,
1242 /* If there isn't a scan actively going on in the hardware
1243 * then we are in between scan bands and not actually
1244 * actively scanning, so don't send the abort command */
1245 if (!test_bit(STATUS_SCAN_HW
, &priv
->status
)) {
1246 clear_bit(STATUS_SCAN_ABORTING
, &priv
->status
);
1250 rc
= iwl3945_send_cmd_sync(priv
, &cmd
);
1252 clear_bit(STATUS_SCAN_ABORTING
, &priv
->status
);
1256 res
= (struct iwl3945_rx_packet
*)cmd
.meta
.u
.skb
->data
;
1257 if (res
->u
.status
!= CAN_ABORT_STATUS
) {
1258 /* The scan abort will return 1 for success or
1259 * 2 for "failure". A failure condition can be
1260 * due to simply not being in an active scan which
1261 * can occur if we send the scan abort before we
1262 * the microcode has notified us that a scan is
1264 IWL_DEBUG_INFO("SCAN_ABORT returned %d.\n", res
->u
.status
);
1265 clear_bit(STATUS_SCAN_ABORTING
, &priv
->status
);
1266 clear_bit(STATUS_SCAN_HW
, &priv
->status
);
1269 dev_kfree_skb_any(cmd
.meta
.u
.skb
);
1274 static int iwl3945_card_state_sync_callback(struct iwl3945_priv
*priv
,
1275 struct iwl3945_cmd
*cmd
,
1276 struct sk_buff
*skb
)
1284 * Use: Sets the device's internal card state to enable, disable, or halt
1286 * When in the 'enable' state the card operates as normal.
1287 * When in the 'disable' state, the card enters into a low power mode.
1288 * When in the 'halt' state, the card is shut down and must be fully
1289 * restarted to come back on.
1291 static int iwl3945_send_card_state(struct iwl3945_priv
*priv
, u32 flags
, u8 meta_flag
)
1293 struct iwl3945_host_cmd cmd
= {
1294 .id
= REPLY_CARD_STATE_CMD
,
1297 .meta
.flags
= meta_flag
,
1300 if (meta_flag
& CMD_ASYNC
)
1301 cmd
.meta
.u
.callback
= iwl3945_card_state_sync_callback
;
1303 return iwl3945_send_cmd(priv
, &cmd
);
1306 static int iwl3945_add_sta_sync_callback(struct iwl3945_priv
*priv
,
1307 struct iwl3945_cmd
*cmd
, struct sk_buff
*skb
)
1309 struct iwl3945_rx_packet
*res
= NULL
;
1312 IWL_ERROR("Error: Response NULL in REPLY_ADD_STA.\n");
1316 res
= (struct iwl3945_rx_packet
*)skb
->data
;
1317 if (res
->hdr
.flags
& IWL_CMD_FAILED_MSK
) {
1318 IWL_ERROR("Bad return from REPLY_ADD_STA (0x%08X)\n",
1323 switch (res
->u
.add_sta
.status
) {
1324 case ADD_STA_SUCCESS_MSK
:
1330 /* We didn't cache the SKB; let the caller free it */
1334 int iwl3945_send_add_station(struct iwl3945_priv
*priv
,
1335 struct iwl3945_addsta_cmd
*sta
, u8 flags
)
1337 struct iwl3945_rx_packet
*res
= NULL
;
1339 struct iwl3945_host_cmd cmd
= {
1340 .id
= REPLY_ADD_STA
,
1341 .len
= sizeof(struct iwl3945_addsta_cmd
),
1342 .meta
.flags
= flags
,
1346 if (flags
& CMD_ASYNC
)
1347 cmd
.meta
.u
.callback
= iwl3945_add_sta_sync_callback
;
1349 cmd
.meta
.flags
|= CMD_WANT_SKB
;
1351 rc
= iwl3945_send_cmd(priv
, &cmd
);
1353 if (rc
|| (flags
& CMD_ASYNC
))
1356 res
= (struct iwl3945_rx_packet
*)cmd
.meta
.u
.skb
->data
;
1357 if (res
->hdr
.flags
& IWL_CMD_FAILED_MSK
) {
1358 IWL_ERROR("Bad return from REPLY_ADD_STA (0x%08X)\n",
1364 switch (res
->u
.add_sta
.status
) {
1365 case ADD_STA_SUCCESS_MSK
:
1366 IWL_DEBUG_INFO("REPLY_ADD_STA PASSED\n");
1370 IWL_WARNING("REPLY_ADD_STA failed\n");
1375 priv
->alloc_rxb_skb
--;
1376 dev_kfree_skb_any(cmd
.meta
.u
.skb
);
1381 static int iwl3945_update_sta_key_info(struct iwl3945_priv
*priv
,
1382 struct ieee80211_key_conf
*keyconf
,
1385 unsigned long flags
;
1386 __le16 key_flags
= 0;
1388 switch (keyconf
->alg
) {
1390 key_flags
|= STA_KEY_FLG_CCMP
;
1391 key_flags
|= cpu_to_le16(
1392 keyconf
->keyidx
<< STA_KEY_FLG_KEYID_POS
);
1393 key_flags
&= ~STA_KEY_FLG_INVALID
;
1400 spin_lock_irqsave(&priv
->sta_lock
, flags
);
1401 priv
->stations
[sta_id
].keyinfo
.alg
= keyconf
->alg
;
1402 priv
->stations
[sta_id
].keyinfo
.keylen
= keyconf
->keylen
;
1403 memcpy(priv
->stations
[sta_id
].keyinfo
.key
, keyconf
->key
,
1406 memcpy(priv
->stations
[sta_id
].sta
.key
.key
, keyconf
->key
,
1408 priv
->stations
[sta_id
].sta
.key
.key_flags
= key_flags
;
1409 priv
->stations
[sta_id
].sta
.sta
.modify_mask
= STA_MODIFY_KEY_MASK
;
1410 priv
->stations
[sta_id
].sta
.mode
= STA_CONTROL_MODIFY_MSK
;
1412 spin_unlock_irqrestore(&priv
->sta_lock
, flags
);
1414 IWL_DEBUG_INFO("hwcrypto: modify ucode station key info\n");
1415 iwl3945_send_add_station(priv
, &priv
->stations
[sta_id
].sta
, 0);
1419 static int iwl3945_clear_sta_key_info(struct iwl3945_priv
*priv
, u8 sta_id
)
1421 unsigned long flags
;
1423 spin_lock_irqsave(&priv
->sta_lock
, flags
);
1424 memset(&priv
->stations
[sta_id
].keyinfo
, 0, sizeof(struct iwl3945_hw_key
));
1425 memset(&priv
->stations
[sta_id
].sta
.key
, 0, sizeof(struct iwl3945_keyinfo
));
1426 priv
->stations
[sta_id
].sta
.key
.key_flags
= STA_KEY_FLG_NO_ENC
;
1427 priv
->stations
[sta_id
].sta
.sta
.modify_mask
= STA_MODIFY_KEY_MASK
;
1428 priv
->stations
[sta_id
].sta
.mode
= STA_CONTROL_MODIFY_MSK
;
1429 spin_unlock_irqrestore(&priv
->sta_lock
, flags
);
1431 IWL_DEBUG_INFO("hwcrypto: clear ucode station key info\n");
1432 iwl3945_send_add_station(priv
, &priv
->stations
[sta_id
].sta
, 0);
1436 static void iwl3945_clear_free_frames(struct iwl3945_priv
*priv
)
1438 struct list_head
*element
;
1440 IWL_DEBUG_INFO("%d frames on pre-allocated heap on clear.\n",
1441 priv
->frames_count
);
1443 while (!list_empty(&priv
->free_frames
)) {
1444 element
= priv
->free_frames
.next
;
1446 kfree(list_entry(element
, struct iwl3945_frame
, list
));
1447 priv
->frames_count
--;
1450 if (priv
->frames_count
) {
1451 IWL_WARNING("%d frames still in use. Did we lose one?\n",
1452 priv
->frames_count
);
1453 priv
->frames_count
= 0;
1457 static struct iwl3945_frame
*iwl3945_get_free_frame(struct iwl3945_priv
*priv
)
1459 struct iwl3945_frame
*frame
;
1460 struct list_head
*element
;
1461 if (list_empty(&priv
->free_frames
)) {
1462 frame
= kzalloc(sizeof(*frame
), GFP_KERNEL
);
1464 IWL_ERROR("Could not allocate frame!\n");
1468 priv
->frames_count
++;
1472 element
= priv
->free_frames
.next
;
1474 return list_entry(element
, struct iwl3945_frame
, list
);
1477 static void iwl3945_free_frame(struct iwl3945_priv
*priv
, struct iwl3945_frame
*frame
)
1479 memset(frame
, 0, sizeof(*frame
));
1480 list_add(&frame
->list
, &priv
->free_frames
);
1483 unsigned int iwl3945_fill_beacon_frame(struct iwl3945_priv
*priv
,
1484 struct ieee80211_hdr
*hdr
,
1485 const u8
*dest
, int left
)
1488 if (!iwl3945_is_associated(priv
) || !priv
->ibss_beacon
||
1489 ((priv
->iw_mode
!= IEEE80211_IF_TYPE_IBSS
) &&
1490 (priv
->iw_mode
!= IEEE80211_IF_TYPE_AP
)))
1493 if (priv
->ibss_beacon
->len
> left
)
1496 memcpy(hdr
, priv
->ibss_beacon
->data
, priv
->ibss_beacon
->len
);
1498 return priv
->ibss_beacon
->len
;
1501 static u8
iwl3945_rate_get_lowest_plcp(int rate_mask
)
1505 for (i
= IWL_RATE_1M_INDEX
; i
!= IWL_RATE_INVALID
;
1506 i
= iwl3945_rates
[i
].next_ieee
) {
1507 if (rate_mask
& (1 << i
))
1508 return iwl3945_rates
[i
].plcp
;
1511 return IWL_RATE_INVALID
;
1514 static int iwl3945_send_beacon_cmd(struct iwl3945_priv
*priv
)
1516 struct iwl3945_frame
*frame
;
1517 unsigned int frame_size
;
1521 frame
= iwl3945_get_free_frame(priv
);
1524 IWL_ERROR("Could not obtain free frame buffer for beacon "
1529 if (!(priv
->staging_rxon
.flags
& RXON_FLG_BAND_24G_MSK
)) {
1530 rate
= iwl3945_rate_get_lowest_plcp(priv
->active_rate_basic
&
1532 if (rate
== IWL_INVALID_RATE
)
1533 rate
= IWL_RATE_6M_PLCP
;
1535 rate
= iwl3945_rate_get_lowest_plcp(priv
->active_rate_basic
& 0xF);
1536 if (rate
== IWL_INVALID_RATE
)
1537 rate
= IWL_RATE_1M_PLCP
;
1540 frame_size
= iwl3945_hw_get_beacon_cmd(priv
, frame
, rate
);
1542 rc
= iwl3945_send_cmd_pdu(priv
, REPLY_TX_BEACON
, frame_size
,
1545 iwl3945_free_frame(priv
, frame
);
1550 /******************************************************************************
1552 * EEPROM related functions
1554 ******************************************************************************/
1556 static void get_eeprom_mac(struct iwl3945_priv
*priv
, u8
*mac
)
1558 memcpy(mac
, priv
->eeprom
.mac_address
, 6);
1562 * Clear the OWNER_MSK, to establish driver (instead of uCode running on
1563 * embedded controller) as EEPROM reader; each read is a series of pulses
1564 * to/from the EEPROM chip, not a single event, so even reads could conflict
1565 * if they weren't arbitrated by some ownership mechanism. Here, the driver
1566 * simply claims ownership, which should be safe when this function is called
1567 * (i.e. before loading uCode!).
1569 static inline int iwl3945_eeprom_acquire_semaphore(struct iwl3945_priv
*priv
)
1571 _iwl3945_clear_bit(priv
, CSR_EEPROM_GP
, CSR_EEPROM_GP_IF_OWNER_MSK
);
1576 * iwl3945_eeprom_init - read EEPROM contents
1578 * Load the EEPROM contents from adapter into priv->eeprom
1580 * NOTE: This routine uses the non-debug IO access functions.
1582 int iwl3945_eeprom_init(struct iwl3945_priv
*priv
)
1584 u16
*e
= (u16
*)&priv
->eeprom
;
1585 u32 gp
= iwl3945_read32(priv
, CSR_EEPROM_GP
);
1587 int sz
= sizeof(priv
->eeprom
);
1592 /* The EEPROM structure has several padding buffers within it
1593 * and when adding new EEPROM maps is subject to programmer errors
1594 * which may be very difficult to identify without explicitly
1595 * checking the resulting size of the eeprom map. */
1596 BUILD_BUG_ON(sizeof(priv
->eeprom
) != IWL_EEPROM_IMAGE_SIZE
);
1598 if ((gp
& CSR_EEPROM_GP_VALID_MSK
) == CSR_EEPROM_GP_BAD_SIGNATURE
) {
1599 IWL_ERROR("EEPROM not found, EEPROM_GP=0x%08x", gp
);
1603 /* Make sure driver (instead of uCode) is allowed to read EEPROM */
1604 rc
= iwl3945_eeprom_acquire_semaphore(priv
);
1606 IWL_ERROR("Failed to acquire EEPROM semaphore.\n");
1610 /* eeprom is an array of 16bit values */
1611 for (addr
= 0; addr
< sz
; addr
+= sizeof(u16
)) {
1612 _iwl3945_write32(priv
, CSR_EEPROM_REG
, addr
<< 1);
1613 _iwl3945_clear_bit(priv
, CSR_EEPROM_REG
, CSR_EEPROM_REG_BIT_CMD
);
1615 for (i
= 0; i
< IWL_EEPROM_ACCESS_TIMEOUT
;
1616 i
+= IWL_EEPROM_ACCESS_DELAY
) {
1617 r
= _iwl3945_read_direct32(priv
, CSR_EEPROM_REG
);
1618 if (r
& CSR_EEPROM_REG_READ_VALID_MSK
)
1620 udelay(IWL_EEPROM_ACCESS_DELAY
);
1623 if (!(r
& CSR_EEPROM_REG_READ_VALID_MSK
)) {
1624 IWL_ERROR("Time out reading EEPROM[%d]", addr
);
1627 e
[addr
/ 2] = le16_to_cpu((__force __le16
)(r
>> 16));
1633 /******************************************************************************
1635 * Misc. internal state and helper functions
1637 ******************************************************************************/
1638 #ifdef CONFIG_IWL3945_DEBUG
1641 * iwl3945_report_frame - dump frame to syslog during debug sessions
1643 * You may hack this function to show different aspects of received frames,
1644 * including selective frame dumps.
1645 * group100 parameter selects whether to show 1 out of 100 good frames.
1647 void iwl3945_report_frame(struct iwl3945_priv
*priv
,
1648 struct iwl3945_rx_packet
*pkt
,
1649 struct ieee80211_hdr
*header
, int group100
)
1652 u32 print_summary
= 0;
1653 u32 print_dump
= 0; /* set to 1 to dump all frames' contents */
1670 struct iwl3945_rx_frame_stats
*rx_stats
= IWL_RX_STATS(pkt
);
1671 struct iwl3945_rx_frame_hdr
*rx_hdr
= IWL_RX_HDR(pkt
);
1672 struct iwl3945_rx_frame_end
*rx_end
= IWL_RX_END(pkt
);
1673 u8
*data
= IWL_RX_DATA(pkt
);
1676 fc
= le16_to_cpu(header
->frame_control
);
1677 seq_ctl
= le16_to_cpu(header
->seq_ctrl
);
1680 channel
= le16_to_cpu(rx_hdr
->channel
);
1681 phy_flags
= le16_to_cpu(rx_hdr
->phy_flags
);
1682 rate_sym
= rx_hdr
->rate
;
1683 length
= le16_to_cpu(rx_hdr
->len
);
1685 /* end-of-frame status and timestamp */
1686 status
= le32_to_cpu(rx_end
->status
);
1687 bcn_tmr
= le32_to_cpu(rx_end
->beacon_timestamp
);
1688 tsf_low
= le64_to_cpu(rx_end
->timestamp
) & 0x0ffffffff;
1689 tsf
= le64_to_cpu(rx_end
->timestamp
);
1691 /* signal statistics */
1692 rssi
= rx_stats
->rssi
;
1693 agc
= rx_stats
->agc
;
1694 sig_avg
= le16_to_cpu(rx_stats
->sig_avg
);
1695 noise_diff
= le16_to_cpu(rx_stats
->noise_diff
);
1697 to_us
= !compare_ether_addr(header
->addr1
, priv
->mac_addr
);
1699 /* if data frame is to us and all is good,
1700 * (optionally) print summary for only 1 out of every 100 */
1701 if (to_us
&& (fc
& ~IEEE80211_FCTL_PROTECTED
) ==
1702 (IEEE80211_FCTL_FROMDS
| IEEE80211_FTYPE_DATA
)) {
1705 print_summary
= 1; /* print each frame */
1706 else if (priv
->framecnt_to_us
< 100) {
1707 priv
->framecnt_to_us
++;
1710 priv
->framecnt_to_us
= 0;
1715 /* print summary for all other frames */
1719 if (print_summary
) {
1724 title
= "100Frames";
1725 else if (fc
& IEEE80211_FCTL_RETRY
)
1727 else if (ieee80211_is_assoc_response(fc
))
1729 else if (ieee80211_is_reassoc_response(fc
))
1731 else if (ieee80211_is_probe_response(fc
)) {
1733 print_dump
= 1; /* dump frame contents */
1734 } else if (ieee80211_is_beacon(fc
)) {
1736 print_dump
= 1; /* dump frame contents */
1737 } else if (ieee80211_is_atim(fc
))
1739 else if (ieee80211_is_auth(fc
))
1741 else if (ieee80211_is_deauth(fc
))
1743 else if (ieee80211_is_disassoc(fc
))
1748 rate
= iwl3945_rate_index_from_plcp(rate_sym
);
1752 rate
= iwl3945_rates
[rate
].ieee
/ 2;
1754 /* print frame summary.
1755 * MAC addresses show just the last byte (for brevity),
1756 * but you can hack it to show more, if you'd like to. */
1758 IWL_DEBUG_RX("%s: mhd=0x%04x, dst=0x%02x, "
1759 "len=%u, rssi=%d, chnl=%d, rate=%u, \n",
1760 title
, fc
, header
->addr1
[5],
1761 length
, rssi
, channel
, rate
);
1763 /* src/dst addresses assume managed mode */
1764 IWL_DEBUG_RX("%s: 0x%04x, dst=0x%02x, "
1765 "src=0x%02x, rssi=%u, tim=%lu usec, "
1766 "phy=0x%02x, chnl=%d\n",
1767 title
, fc
, header
->addr1
[5],
1768 header
->addr3
[5], rssi
,
1769 tsf_low
- priv
->scan_start_tsf
,
1770 phy_flags
, channel
);
1774 iwl3945_print_hex_dump(IWL_DL_RX
, data
, length
);
1778 static void iwl3945_unset_hw_setting(struct iwl3945_priv
*priv
)
1780 if (priv
->hw_setting
.shared_virt
)
1781 pci_free_consistent(priv
->pci_dev
,
1782 sizeof(struct iwl3945_shared
),
1783 priv
->hw_setting
.shared_virt
,
1784 priv
->hw_setting
.shared_phys
);
1788 * iwl3945_supported_rate_to_ie - fill in the supported rate in IE field
1790 * return : set the bit for each supported rate insert in ie
1792 static u16
iwl3945_supported_rate_to_ie(u8
*ie
, u16 supported_rate
,
1793 u16 basic_rate
, int *left
)
1795 u16 ret_rates
= 0, bit
;
1800 for (bit
= 1, i
= 0; i
< IWL_RATE_COUNT
; i
++, bit
<<= 1) {
1801 if (bit
& supported_rate
) {
1803 rates
[*cnt
] = iwl3945_rates
[i
].ieee
|
1804 ((bit
& basic_rate
) ? 0x80 : 0x00);
1808 (*cnt
>= IWL_SUPPORTED_RATES_IE_LEN
))
1817 * iwl3945_fill_probe_req - fill in all required fields and IE for probe request
1819 static u16
iwl3945_fill_probe_req(struct iwl3945_priv
*priv
,
1820 struct ieee80211_mgmt
*frame
,
1821 int left
, int is_direct
)
1825 u16 active_rates
, ret_rates
, cck_rates
;
1827 /* Make sure there is enough space for the probe request,
1828 * two mandatory IEs and the data */
1834 frame
->frame_control
= cpu_to_le16(IEEE80211_STYPE_PROBE_REQ
);
1835 memcpy(frame
->da
, iwl3945_broadcast_addr
, ETH_ALEN
);
1836 memcpy(frame
->sa
, priv
->mac_addr
, ETH_ALEN
);
1837 memcpy(frame
->bssid
, iwl3945_broadcast_addr
, ETH_ALEN
);
1838 frame
->seq_ctrl
= 0;
1840 /* fill in our indirect SSID IE */
1847 pos
= &(frame
->u
.probe_req
.variable
[0]);
1848 *pos
++ = WLAN_EID_SSID
;
1851 /* fill in our direct SSID IE... */
1854 left
-= 2 + priv
->essid_len
;
1857 /* ... fill it in... */
1858 *pos
++ = WLAN_EID_SSID
;
1859 *pos
++ = priv
->essid_len
;
1860 memcpy(pos
, priv
->essid
, priv
->essid_len
);
1861 pos
+= priv
->essid_len
;
1862 len
+= 2 + priv
->essid_len
;
1865 /* fill in supported rate */
1871 /* ... fill it in... */
1872 *pos
++ = WLAN_EID_SUPP_RATES
;
1875 priv
->active_rate
= priv
->rates_mask
;
1876 active_rates
= priv
->active_rate
;
1877 priv
->active_rate_basic
= priv
->rates_mask
& IWL_BASIC_RATES_MASK
;
1879 cck_rates
= IWL_CCK_RATES_MASK
& active_rates
;
1880 ret_rates
= iwl3945_supported_rate_to_ie(pos
, cck_rates
,
1881 priv
->active_rate_basic
, &left
);
1882 active_rates
&= ~ret_rates
;
1884 ret_rates
= iwl3945_supported_rate_to_ie(pos
, active_rates
,
1885 priv
->active_rate_basic
, &left
);
1886 active_rates
&= ~ret_rates
;
1890 if (active_rates
== 0)
1893 /* fill in supported extended rate */
1898 /* ... fill it in... */
1899 *pos
++ = WLAN_EID_EXT_SUPP_RATES
;
1901 iwl3945_supported_rate_to_ie(pos
, active_rates
,
1902 priv
->active_rate_basic
, &left
);
1913 static int iwl3945_send_qos_params_command(struct iwl3945_priv
*priv
,
1914 struct iwl3945_qosparam_cmd
*qos
)
1917 return iwl3945_send_cmd_pdu(priv
, REPLY_QOS_PARAM
,
1918 sizeof(struct iwl3945_qosparam_cmd
), qos
);
1921 static void iwl3945_reset_qos(struct iwl3945_priv
*priv
)
1927 unsigned long flags
;
1930 spin_lock_irqsave(&priv
->lock
, flags
);
1931 priv
->qos_data
.qos_active
= 0;
1933 if (priv
->iw_mode
== IEEE80211_IF_TYPE_IBSS
) {
1934 if (priv
->qos_data
.qos_enable
)
1935 priv
->qos_data
.qos_active
= 1;
1936 if (!(priv
->active_rate
& 0xfff0)) {
1940 } else if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) {
1941 if (priv
->qos_data
.qos_enable
)
1942 priv
->qos_data
.qos_active
= 1;
1943 } else if (!(priv
->staging_rxon
.flags
& RXON_FLG_SHORT_SLOT_MSK
)) {
1948 if (priv
->qos_data
.qos_active
)
1951 priv
->qos_data
.def_qos_parm
.ac
[0].cw_min
= cpu_to_le16(cw_min
);
1952 priv
->qos_data
.def_qos_parm
.ac
[0].cw_max
= cpu_to_le16(cw_max
);
1953 priv
->qos_data
.def_qos_parm
.ac
[0].aifsn
= aifs
;
1954 priv
->qos_data
.def_qos_parm
.ac
[0].edca_txop
= 0;
1955 priv
->qos_data
.def_qos_parm
.ac
[0].reserved1
= 0;
1957 if (priv
->qos_data
.qos_active
) {
1959 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_min
= cpu_to_le16(cw_min
);
1960 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_max
= cpu_to_le16(cw_max
);
1961 priv
->qos_data
.def_qos_parm
.ac
[i
].aifsn
= 7;
1962 priv
->qos_data
.def_qos_parm
.ac
[i
].edca_txop
= 0;
1963 priv
->qos_data
.def_qos_parm
.ac
[i
].reserved1
= 0;
1966 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_min
=
1967 cpu_to_le16((cw_min
+ 1) / 2 - 1);
1968 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_max
=
1969 cpu_to_le16(cw_max
);
1970 priv
->qos_data
.def_qos_parm
.ac
[i
].aifsn
= 2;
1972 priv
->qos_data
.def_qos_parm
.ac
[i
].edca_txop
=
1975 priv
->qos_data
.def_qos_parm
.ac
[i
].edca_txop
=
1977 priv
->qos_data
.def_qos_parm
.ac
[i
].reserved1
= 0;
1980 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_min
=
1981 cpu_to_le16((cw_min
+ 1) / 4 - 1);
1982 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_max
=
1983 cpu_to_le16((cw_max
+ 1) / 2 - 1);
1984 priv
->qos_data
.def_qos_parm
.ac
[i
].aifsn
= 2;
1985 priv
->qos_data
.def_qos_parm
.ac
[i
].reserved1
= 0;
1987 priv
->qos_data
.def_qos_parm
.ac
[i
].edca_txop
=
1990 priv
->qos_data
.def_qos_parm
.ac
[i
].edca_txop
=
1993 for (i
= 1; i
< 4; i
++) {
1994 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_min
=
1995 cpu_to_le16(cw_min
);
1996 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_max
=
1997 cpu_to_le16(cw_max
);
1998 priv
->qos_data
.def_qos_parm
.ac
[i
].aifsn
= aifs
;
1999 priv
->qos_data
.def_qos_parm
.ac
[i
].edca_txop
= 0;
2000 priv
->qos_data
.def_qos_parm
.ac
[i
].reserved1
= 0;
2003 IWL_DEBUG_QOS("set QoS to default \n");
2005 spin_unlock_irqrestore(&priv
->lock
, flags
);
2008 static void iwl3945_activate_qos(struct iwl3945_priv
*priv
, u8 force
)
2010 unsigned long flags
;
2012 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
2015 if (!priv
->qos_data
.qos_enable
)
2018 spin_lock_irqsave(&priv
->lock
, flags
);
2019 priv
->qos_data
.def_qos_parm
.qos_flags
= 0;
2021 if (priv
->qos_data
.qos_cap
.q_AP
.queue_request
&&
2022 !priv
->qos_data
.qos_cap
.q_AP
.txop_request
)
2023 priv
->qos_data
.def_qos_parm
.qos_flags
|=
2024 QOS_PARAM_FLG_TXOP_TYPE_MSK
;
2026 if (priv
->qos_data
.qos_active
)
2027 priv
->qos_data
.def_qos_parm
.qos_flags
|=
2028 QOS_PARAM_FLG_UPDATE_EDCA_MSK
;
2030 spin_unlock_irqrestore(&priv
->lock
, flags
);
2032 if (force
|| iwl3945_is_associated(priv
)) {
2033 IWL_DEBUG_QOS("send QoS cmd with Qos active %d \n",
2034 priv
->qos_data
.qos_active
);
2036 iwl3945_send_qos_params_command(priv
,
2037 &(priv
->qos_data
.def_qos_parm
));
2042 * Power management (not Tx power!) functions
2044 #define MSEC_TO_USEC 1024
2046 #define NOSLP __constant_cpu_to_le32(0)
2047 #define SLP IWL_POWER_DRIVER_ALLOW_SLEEP_MSK
2048 #define SLP_TIMEOUT(T) __constant_cpu_to_le32((T) * MSEC_TO_USEC)
2049 #define SLP_VEC(X0, X1, X2, X3, X4) {__constant_cpu_to_le32(X0), \
2050 __constant_cpu_to_le32(X1), \
2051 __constant_cpu_to_le32(X2), \
2052 __constant_cpu_to_le32(X3), \
2053 __constant_cpu_to_le32(X4)}
2056 /* default power management (not Tx power) table values */
2058 static struct iwl3945_power_vec_entry range_0
[IWL_POWER_AC
] = {
2059 {{NOSLP
, SLP_TIMEOUT(0), SLP_TIMEOUT(0), SLP_VEC(0, 0, 0, 0, 0)}, 0},
2060 {{SLP
, SLP_TIMEOUT(200), SLP_TIMEOUT(500), SLP_VEC(1, 2, 3, 4, 4)}, 0},
2061 {{SLP
, SLP_TIMEOUT(200), SLP_TIMEOUT(300), SLP_VEC(2, 4, 6, 7, 7)}, 0},
2062 {{SLP
, SLP_TIMEOUT(50), SLP_TIMEOUT(100), SLP_VEC(2, 6, 9, 9, 10)}, 0},
2063 {{SLP
, SLP_TIMEOUT(50), SLP_TIMEOUT(25), SLP_VEC(2, 7, 9, 9, 10)}, 1},
2064 {{SLP
, SLP_TIMEOUT(25), SLP_TIMEOUT(25), SLP_VEC(4, 7, 10, 10, 10)}, 1}
2068 static struct iwl3945_power_vec_entry range_1
[IWL_POWER_AC
] = {
2069 {{NOSLP
, SLP_TIMEOUT(0), SLP_TIMEOUT(0), SLP_VEC(0, 0, 0, 0, 0)}, 0},
2070 {{SLP
, SLP_TIMEOUT(200), SLP_TIMEOUT(500),
2071 SLP_VEC(1, 2, 3, 4, 0xFF)}, 0},
2072 {{SLP
, SLP_TIMEOUT(200), SLP_TIMEOUT(300),
2073 SLP_VEC(2, 4, 6, 7, 0xFF)}, 0},
2074 {{SLP
, SLP_TIMEOUT(50), SLP_TIMEOUT(100),
2075 SLP_VEC(2, 6, 9, 9, 0xFF)}, 0},
2076 {{SLP
, SLP_TIMEOUT(50), SLP_TIMEOUT(25), SLP_VEC(2, 7, 9, 9, 0xFF)}, 0},
2077 {{SLP
, SLP_TIMEOUT(25), SLP_TIMEOUT(25),
2078 SLP_VEC(4, 7, 10, 10, 0xFF)}, 0}
2081 int iwl3945_power_init_handle(struct iwl3945_priv
*priv
)
2084 struct iwl3945_power_mgr
*pow_data
;
2085 int size
= sizeof(struct iwl3945_power_vec_entry
) * IWL_POWER_AC
;
2088 IWL_DEBUG_POWER("Initialize power \n");
2090 pow_data
= &(priv
->power_data
);
2092 memset(pow_data
, 0, sizeof(*pow_data
));
2094 pow_data
->active_index
= IWL_POWER_RANGE_0
;
2095 pow_data
->dtim_val
= 0xffff;
2097 memcpy(&pow_data
->pwr_range_0
[0], &range_0
[0], size
);
2098 memcpy(&pow_data
->pwr_range_1
[0], &range_1
[0], size
);
2100 rc
= pci_read_config_word(priv
->pci_dev
, PCI_LINK_CTRL
, &pci_pm
);
2104 struct iwl3945_powertable_cmd
*cmd
;
2106 IWL_DEBUG_POWER("adjust power command flags\n");
2108 for (i
= 0; i
< IWL_POWER_AC
; i
++) {
2109 cmd
= &pow_data
->pwr_range_0
[i
].cmd
;
2112 cmd
->flags
&= ~IWL_POWER_PCI_PM_MSK
;
2114 cmd
->flags
|= IWL_POWER_PCI_PM_MSK
;
2120 static int iwl3945_update_power_cmd(struct iwl3945_priv
*priv
,
2121 struct iwl3945_powertable_cmd
*cmd
, u32 mode
)
2126 struct iwl3945_power_vec_entry
*range
;
2128 struct iwl3945_power_mgr
*pow_data
;
2130 if (mode
> IWL_POWER_INDEX_5
) {
2131 IWL_DEBUG_POWER("Error invalid power mode \n");
2134 pow_data
= &(priv
->power_data
);
2136 if (pow_data
->active_index
== IWL_POWER_RANGE_0
)
2137 range
= &pow_data
->pwr_range_0
[0];
2139 range
= &pow_data
->pwr_range_1
[1];
2141 memcpy(cmd
, &range
[mode
].cmd
, sizeof(struct iwl3945_powertable_cmd
));
2143 #ifdef IWL_MAC80211_DISABLE
2144 if (priv
->assoc_network
!= NULL
) {
2145 unsigned long flags
;
2147 period
= priv
->assoc_network
->tim
.tim_period
;
2149 #endif /*IWL_MAC80211_DISABLE */
2150 skip
= range
[mode
].no_dtim
;
2159 cmd
->flags
&= ~IWL_POWER_SLEEP_OVER_DTIM_MSK
;
2161 __le32 slp_itrvl
= cmd
->sleep_interval
[IWL_POWER_VEC_SIZE
- 1];
2162 max_sleep
= (le32_to_cpu(slp_itrvl
) / period
) * period
;
2163 cmd
->flags
|= IWL_POWER_SLEEP_OVER_DTIM_MSK
;
2166 for (i
= 0; i
< IWL_POWER_VEC_SIZE
; i
++) {
2167 if (le32_to_cpu(cmd
->sleep_interval
[i
]) > max_sleep
)
2168 cmd
->sleep_interval
[i
] = cpu_to_le32(max_sleep
);
2171 IWL_DEBUG_POWER("Flags value = 0x%08X\n", cmd
->flags
);
2172 IWL_DEBUG_POWER("Tx timeout = %u\n", le32_to_cpu(cmd
->tx_data_timeout
));
2173 IWL_DEBUG_POWER("Rx timeout = %u\n", le32_to_cpu(cmd
->rx_data_timeout
));
2174 IWL_DEBUG_POWER("Sleep interval vector = { %d , %d , %d , %d , %d }\n",
2175 le32_to_cpu(cmd
->sleep_interval
[0]),
2176 le32_to_cpu(cmd
->sleep_interval
[1]),
2177 le32_to_cpu(cmd
->sleep_interval
[2]),
2178 le32_to_cpu(cmd
->sleep_interval
[3]),
2179 le32_to_cpu(cmd
->sleep_interval
[4]));
2184 static int iwl3945_send_power_mode(struct iwl3945_priv
*priv
, u32 mode
)
2186 u32
uninitialized_var(final_mode
);
2188 struct iwl3945_powertable_cmd cmd
;
2190 /* If on battery, set to 3,
2191 * if plugged into AC power, set to CAM ("continuously aware mode"),
2192 * else user level */
2194 case IWL_POWER_BATTERY
:
2195 final_mode
= IWL_POWER_INDEX_3
;
2198 final_mode
= IWL_POWER_MODE_CAM
;
2205 iwl3945_update_power_cmd(priv
, &cmd
, final_mode
);
2207 rc
= iwl3945_send_cmd_pdu(priv
, POWER_TABLE_CMD
, sizeof(cmd
), &cmd
);
2209 if (final_mode
== IWL_POWER_MODE_CAM
)
2210 clear_bit(STATUS_POWER_PMI
, &priv
->status
);
2212 set_bit(STATUS_POWER_PMI
, &priv
->status
);
2217 int iwl3945_is_network_packet(struct iwl3945_priv
*priv
, struct ieee80211_hdr
*header
)
2219 /* Filter incoming packets to determine if they are targeted toward
2220 * this network, discarding packets coming from ourselves */
2221 switch (priv
->iw_mode
) {
2222 case IEEE80211_IF_TYPE_IBSS
: /* Header: Dest. | Source | BSSID */
2223 /* packets from our adapter are dropped (echo) */
2224 if (!compare_ether_addr(header
->addr2
, priv
->mac_addr
))
2226 /* {broad,multi}cast packets to our IBSS go through */
2227 if (is_multicast_ether_addr(header
->addr1
))
2228 return !compare_ether_addr(header
->addr3
, priv
->bssid
);
2229 /* packets to our adapter go through */
2230 return !compare_ether_addr(header
->addr1
, priv
->mac_addr
);
2231 case IEEE80211_IF_TYPE_STA
: /* Header: Dest. | AP{BSSID} | Source */
2232 /* packets from our adapter are dropped (echo) */
2233 if (!compare_ether_addr(header
->addr3
, priv
->mac_addr
))
2235 /* {broad,multi}cast packets to our BSS go through */
2236 if (is_multicast_ether_addr(header
->addr1
))
2237 return !compare_ether_addr(header
->addr2
, priv
->bssid
);
2238 /* packets to our adapter go through */
2239 return !compare_ether_addr(header
->addr1
, priv
->mac_addr
);
2245 #define TX_STATUS_ENTRY(x) case TX_STATUS_FAIL_ ## x: return #x
2247 static const char *iwl3945_get_tx_fail_reason(u32 status
)
2249 switch (status
& TX_STATUS_MSK
) {
2250 case TX_STATUS_SUCCESS
:
2252 TX_STATUS_ENTRY(SHORT_LIMIT
);
2253 TX_STATUS_ENTRY(LONG_LIMIT
);
2254 TX_STATUS_ENTRY(FIFO_UNDERRUN
);
2255 TX_STATUS_ENTRY(MGMNT_ABORT
);
2256 TX_STATUS_ENTRY(NEXT_FRAG
);
2257 TX_STATUS_ENTRY(LIFE_EXPIRE
);
2258 TX_STATUS_ENTRY(DEST_PS
);
2259 TX_STATUS_ENTRY(ABORTED
);
2260 TX_STATUS_ENTRY(BT_RETRY
);
2261 TX_STATUS_ENTRY(STA_INVALID
);
2262 TX_STATUS_ENTRY(FRAG_DROPPED
);
2263 TX_STATUS_ENTRY(TID_DISABLE
);
2264 TX_STATUS_ENTRY(FRAME_FLUSHED
);
2265 TX_STATUS_ENTRY(INSUFFICIENT_CF_POLL
);
2266 TX_STATUS_ENTRY(TX_LOCKED
);
2267 TX_STATUS_ENTRY(NO_BEACON_ON_RADAR
);
2274 * iwl3945_scan_cancel - Cancel any currently executing HW scan
2276 * NOTE: priv->mutex is not required before calling this function
2278 static int iwl3945_scan_cancel(struct iwl3945_priv
*priv
)
2280 if (!test_bit(STATUS_SCAN_HW
, &priv
->status
)) {
2281 clear_bit(STATUS_SCANNING
, &priv
->status
);
2285 if (test_bit(STATUS_SCANNING
, &priv
->status
)) {
2286 if (!test_bit(STATUS_SCAN_ABORTING
, &priv
->status
)) {
2287 IWL_DEBUG_SCAN("Queuing scan abort.\n");
2288 set_bit(STATUS_SCAN_ABORTING
, &priv
->status
);
2289 queue_work(priv
->workqueue
, &priv
->abort_scan
);
2292 IWL_DEBUG_SCAN("Scan abort already in progress.\n");
2294 return test_bit(STATUS_SCANNING
, &priv
->status
);
2301 * iwl3945_scan_cancel_timeout - Cancel any currently executing HW scan
2302 * @ms: amount of time to wait (in milliseconds) for scan to abort
2304 * NOTE: priv->mutex must be held before calling this function
2306 static int iwl3945_scan_cancel_timeout(struct iwl3945_priv
*priv
, unsigned long ms
)
2308 unsigned long now
= jiffies
;
2311 ret
= iwl3945_scan_cancel(priv
);
2313 mutex_unlock(&priv
->mutex
);
2314 while (!time_after(jiffies
, now
+ msecs_to_jiffies(ms
)) &&
2315 test_bit(STATUS_SCANNING
, &priv
->status
))
2317 mutex_lock(&priv
->mutex
);
2319 return test_bit(STATUS_SCANNING
, &priv
->status
);
2325 static void iwl3945_sequence_reset(struct iwl3945_priv
*priv
)
2327 /* Reset ieee stats */
2329 /* We don't reset the net_device_stats (ieee->stats) on
2332 priv
->last_seq_num
= -1;
2333 priv
->last_frag_num
= -1;
2334 priv
->last_packet_time
= 0;
2336 iwl3945_scan_cancel(priv
);
2339 #define MAX_UCODE_BEACON_INTERVAL 1024
2340 #define INTEL_CONN_LISTEN_INTERVAL __constant_cpu_to_le16(0xA)
2342 static __le16
iwl3945_adjust_beacon_interval(u16 beacon_val
)
2345 u16 beacon_factor
= 0;
2348 (beacon_val
+ MAX_UCODE_BEACON_INTERVAL
)
2349 / MAX_UCODE_BEACON_INTERVAL
;
2350 new_val
= beacon_val
/ beacon_factor
;
2352 return cpu_to_le16(new_val
);
2355 static void iwl3945_setup_rxon_timing(struct iwl3945_priv
*priv
)
2357 u64 interval_tm_unit
;
2359 unsigned long flags
;
2360 struct ieee80211_conf
*conf
= NULL
;
2363 conf
= ieee80211_get_hw_conf(priv
->hw
);
2365 spin_lock_irqsave(&priv
->lock
, flags
);
2366 priv
->rxon_timing
.timestamp
.dw
[1] = cpu_to_le32(priv
->timestamp1
);
2367 priv
->rxon_timing
.timestamp
.dw
[0] = cpu_to_le32(priv
->timestamp0
);
2369 priv
->rxon_timing
.listen_interval
= INTEL_CONN_LISTEN_INTERVAL
;
2371 tsf
= priv
->timestamp1
;
2372 tsf
= ((tsf
<< 32) | priv
->timestamp0
);
2374 beacon_int
= priv
->beacon_int
;
2375 spin_unlock_irqrestore(&priv
->lock
, flags
);
2377 if (priv
->iw_mode
== IEEE80211_IF_TYPE_STA
) {
2378 if (beacon_int
== 0) {
2379 priv
->rxon_timing
.beacon_interval
= cpu_to_le16(100);
2380 priv
->rxon_timing
.beacon_init_val
= cpu_to_le32(102400);
2382 priv
->rxon_timing
.beacon_interval
=
2383 cpu_to_le16(beacon_int
);
2384 priv
->rxon_timing
.beacon_interval
=
2385 iwl3945_adjust_beacon_interval(
2386 le16_to_cpu(priv
->rxon_timing
.beacon_interval
));
2389 priv
->rxon_timing
.atim_window
= 0;
2391 priv
->rxon_timing
.beacon_interval
=
2392 iwl3945_adjust_beacon_interval(conf
->beacon_int
);
2393 /* TODO: we need to get atim_window from upper stack
2394 * for now we set to 0 */
2395 priv
->rxon_timing
.atim_window
= 0;
2399 (le16_to_cpu(priv
->rxon_timing
.beacon_interval
) * 1024);
2400 result
= do_div(tsf
, interval_tm_unit
);
2401 priv
->rxon_timing
.beacon_init_val
=
2402 cpu_to_le32((u32
) ((u64
) interval_tm_unit
- result
));
2405 ("beacon interval %d beacon timer %d beacon tim %d\n",
2406 le16_to_cpu(priv
->rxon_timing
.beacon_interval
),
2407 le32_to_cpu(priv
->rxon_timing
.beacon_init_val
),
2408 le16_to_cpu(priv
->rxon_timing
.atim_window
));
2411 static int iwl3945_scan_initiate(struct iwl3945_priv
*priv
)
2413 if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) {
2414 IWL_ERROR("APs don't scan.\n");
2418 if (!iwl3945_is_ready_rf(priv
)) {
2419 IWL_DEBUG_SCAN("Aborting scan due to not ready.\n");
2423 if (test_bit(STATUS_SCANNING
, &priv
->status
)) {
2424 IWL_DEBUG_SCAN("Scan already in progress.\n");
2428 if (test_bit(STATUS_SCAN_ABORTING
, &priv
->status
)) {
2429 IWL_DEBUG_SCAN("Scan request while abort pending. "
2434 IWL_DEBUG_INFO("Starting scan...\n");
2435 priv
->scan_bands
= 2;
2436 set_bit(STATUS_SCANNING
, &priv
->status
);
2437 priv
->scan_start
= jiffies
;
2438 priv
->scan_pass_start
= priv
->scan_start
;
2440 queue_work(priv
->workqueue
, &priv
->request_scan
);
2445 static int iwl3945_set_rxon_hwcrypto(struct iwl3945_priv
*priv
, int hw_decrypt
)
2447 struct iwl3945_rxon_cmd
*rxon
= &priv
->staging_rxon
;
2450 rxon
->filter_flags
&= ~RXON_FILTER_DIS_DECRYPT_MSK
;
2452 rxon
->filter_flags
|= RXON_FILTER_DIS_DECRYPT_MSK
;
2457 static void iwl3945_set_flags_for_phymode(struct iwl3945_priv
*priv
,
2458 enum ieee80211_band band
)
2460 if (band
== IEEE80211_BAND_5GHZ
) {
2461 priv
->staging_rxon
.flags
&=
2462 ~(RXON_FLG_BAND_24G_MSK
| RXON_FLG_AUTO_DETECT_MSK
2463 | RXON_FLG_CCK_MSK
);
2464 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_SLOT_MSK
;
2466 /* Copied from iwl3945_bg_post_associate() */
2467 if (priv
->assoc_capability
& WLAN_CAPABILITY_SHORT_SLOT_TIME
)
2468 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_SLOT_MSK
;
2470 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_SLOT_MSK
;
2472 if (priv
->iw_mode
== IEEE80211_IF_TYPE_IBSS
)
2473 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_SLOT_MSK
;
2475 priv
->staging_rxon
.flags
|= RXON_FLG_BAND_24G_MSK
;
2476 priv
->staging_rxon
.flags
|= RXON_FLG_AUTO_DETECT_MSK
;
2477 priv
->staging_rxon
.flags
&= ~RXON_FLG_CCK_MSK
;
2482 * initialize rxon structure with default values from eeprom
2484 static void iwl3945_connection_init_rx_config(struct iwl3945_priv
*priv
)
2486 const struct iwl3945_channel_info
*ch_info
;
2488 memset(&priv
->staging_rxon
, 0, sizeof(priv
->staging_rxon
));
2490 switch (priv
->iw_mode
) {
2491 case IEEE80211_IF_TYPE_AP
:
2492 priv
->staging_rxon
.dev_type
= RXON_DEV_TYPE_AP
;
2495 case IEEE80211_IF_TYPE_STA
:
2496 priv
->staging_rxon
.dev_type
= RXON_DEV_TYPE_ESS
;
2497 priv
->staging_rxon
.filter_flags
= RXON_FILTER_ACCEPT_GRP_MSK
;
2500 case IEEE80211_IF_TYPE_IBSS
:
2501 priv
->staging_rxon
.dev_type
= RXON_DEV_TYPE_IBSS
;
2502 priv
->staging_rxon
.flags
= RXON_FLG_SHORT_PREAMBLE_MSK
;
2503 priv
->staging_rxon
.filter_flags
= RXON_FILTER_BCON_AWARE_MSK
|
2504 RXON_FILTER_ACCEPT_GRP_MSK
;
2507 case IEEE80211_IF_TYPE_MNTR
:
2508 priv
->staging_rxon
.dev_type
= RXON_DEV_TYPE_SNIFFER
;
2509 priv
->staging_rxon
.filter_flags
= RXON_FILTER_PROMISC_MSK
|
2510 RXON_FILTER_CTL2HOST_MSK
| RXON_FILTER_ACCEPT_GRP_MSK
;
2515 /* TODO: Figure out when short_preamble would be set and cache from
2517 if (!hw_to_local(priv
->hw
)->short_preamble
)
2518 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_PREAMBLE_MSK
;
2520 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_PREAMBLE_MSK
;
2523 ch_info
= iwl3945_get_channel_info(priv
, priv
->band
,
2524 le16_to_cpu(priv
->staging_rxon
.channel
));
2527 ch_info
= &priv
->channel_info
[0];
2530 * in some case A channels are all non IBSS
2531 * in this case force B/G channel
2533 if ((priv
->iw_mode
== IEEE80211_IF_TYPE_IBSS
) &&
2534 !(is_channel_ibss(ch_info
)))
2535 ch_info
= &priv
->channel_info
[0];
2537 priv
->staging_rxon
.channel
= cpu_to_le16(ch_info
->channel
);
2538 if (is_channel_a_band(ch_info
))
2539 priv
->band
= IEEE80211_BAND_5GHZ
;
2541 priv
->band
= IEEE80211_BAND_2GHZ
;
2543 iwl3945_set_flags_for_phymode(priv
, priv
->band
);
2545 priv
->staging_rxon
.ofdm_basic_rates
=
2546 (IWL_OFDM_RATES_MASK
>> IWL_FIRST_OFDM_RATE
) & 0xFF;
2547 priv
->staging_rxon
.cck_basic_rates
=
2548 (IWL_CCK_RATES_MASK
>> IWL_FIRST_CCK_RATE
) & 0xF;
2551 static int iwl3945_set_mode(struct iwl3945_priv
*priv
, int mode
)
2553 if (mode
== IEEE80211_IF_TYPE_IBSS
) {
2554 const struct iwl3945_channel_info
*ch_info
;
2556 ch_info
= iwl3945_get_channel_info(priv
,
2558 le16_to_cpu(priv
->staging_rxon
.channel
));
2560 if (!ch_info
|| !is_channel_ibss(ch_info
)) {
2561 IWL_ERROR("channel %d not IBSS channel\n",
2562 le16_to_cpu(priv
->staging_rxon
.channel
));
2567 priv
->iw_mode
= mode
;
2569 iwl3945_connection_init_rx_config(priv
);
2570 memcpy(priv
->staging_rxon
.node_addr
, priv
->mac_addr
, ETH_ALEN
);
2572 iwl3945_clear_stations_table(priv
);
2574 /* dont commit rxon if rf-kill is on*/
2575 if (!iwl3945_is_ready_rf(priv
))
2578 cancel_delayed_work(&priv
->scan_check
);
2579 if (iwl3945_scan_cancel_timeout(priv
, 100)) {
2580 IWL_WARNING("Aborted scan still in progress after 100ms\n");
2581 IWL_DEBUG_MAC80211("leaving - scan abort failed.\n");
2585 iwl3945_commit_rxon(priv
);
2590 static void iwl3945_build_tx_cmd_hwcrypto(struct iwl3945_priv
*priv
,
2591 struct ieee80211_tx_control
*ctl
,
2592 struct iwl3945_cmd
*cmd
,
2593 struct sk_buff
*skb_frag
,
2596 struct iwl3945_hw_key
*keyinfo
= &priv
->stations
[ctl
->key_idx
].keyinfo
;
2598 switch (keyinfo
->alg
) {
2600 cmd
->cmd
.tx
.sec_ctl
= TX_CMD_SEC_CCM
;
2601 memcpy(cmd
->cmd
.tx
.key
, keyinfo
->key
, keyinfo
->keylen
);
2602 IWL_DEBUG_TX("tx_cmd with aes hwcrypto\n");
2607 cmd
->cmd
.tx
.sec_ctl
= TX_CMD_SEC_TKIP
;
2610 memcpy(cmd
->cmd
.tx
.tkip_mic
.byte
, skb_frag
->tail
- 8,
2613 memset(cmd
->cmd
.tx
.tkip_mic
.byte
, 0, 8);
2618 cmd
->cmd
.tx
.sec_ctl
= TX_CMD_SEC_WEP
|
2619 (ctl
->key_idx
& TX_CMD_SEC_MSK
) << TX_CMD_SEC_SHIFT
;
2621 if (keyinfo
->keylen
== 13)
2622 cmd
->cmd
.tx
.sec_ctl
|= TX_CMD_SEC_KEY128
;
2624 memcpy(&cmd
->cmd
.tx
.key
[3], keyinfo
->key
, keyinfo
->keylen
);
2626 IWL_DEBUG_TX("Configuring packet for WEP encryption "
2627 "with key %d\n", ctl
->key_idx
);
2631 printk(KERN_ERR
"Unknown encode alg %d\n", keyinfo
->alg
);
2637 * handle build REPLY_TX command notification.
2639 static void iwl3945_build_tx_cmd_basic(struct iwl3945_priv
*priv
,
2640 struct iwl3945_cmd
*cmd
,
2641 struct ieee80211_tx_control
*ctrl
,
2642 struct ieee80211_hdr
*hdr
,
2643 int is_unicast
, u8 std_id
)
2646 u16 fc
= le16_to_cpu(hdr
->frame_control
);
2647 __le32 tx_flags
= cmd
->cmd
.tx
.tx_flags
;
2649 cmd
->cmd
.tx
.stop_time
.life_time
= TX_CMD_LIFE_TIME_INFINITE
;
2650 if (!(ctrl
->flags
& IEEE80211_TXCTL_NO_ACK
)) {
2651 tx_flags
|= TX_CMD_FLG_ACK_MSK
;
2652 if ((fc
& IEEE80211_FCTL_FTYPE
) == IEEE80211_FTYPE_MGMT
)
2653 tx_flags
|= TX_CMD_FLG_SEQ_CTL_MSK
;
2654 if (ieee80211_is_probe_response(fc
) &&
2655 !(le16_to_cpu(hdr
->seq_ctrl
) & 0xf))
2656 tx_flags
|= TX_CMD_FLG_TSF_MSK
;
2658 tx_flags
&= (~TX_CMD_FLG_ACK_MSK
);
2659 tx_flags
|= TX_CMD_FLG_SEQ_CTL_MSK
;
2662 cmd
->cmd
.tx
.sta_id
= std_id
;
2663 if (ieee80211_get_morefrag(hdr
))
2664 tx_flags
|= TX_CMD_FLG_MORE_FRAG_MSK
;
2666 qc
= ieee80211_get_qos_ctrl(hdr
);
2668 cmd
->cmd
.tx
.tid_tspec
= (u8
) (le16_to_cpu(*qc
) & 0xf);
2669 tx_flags
&= ~TX_CMD_FLG_SEQ_CTL_MSK
;
2671 tx_flags
|= TX_CMD_FLG_SEQ_CTL_MSK
;
2673 if (ctrl
->flags
& IEEE80211_TXCTL_USE_RTS_CTS
) {
2674 tx_flags
|= TX_CMD_FLG_RTS_MSK
;
2675 tx_flags
&= ~TX_CMD_FLG_CTS_MSK
;
2676 } else if (ctrl
->flags
& IEEE80211_TXCTL_USE_CTS_PROTECT
) {
2677 tx_flags
&= ~TX_CMD_FLG_RTS_MSK
;
2678 tx_flags
|= TX_CMD_FLG_CTS_MSK
;
2681 if ((tx_flags
& TX_CMD_FLG_RTS_MSK
) || (tx_flags
& TX_CMD_FLG_CTS_MSK
))
2682 tx_flags
|= TX_CMD_FLG_FULL_TXOP_PROT_MSK
;
2684 tx_flags
&= ~(TX_CMD_FLG_ANT_SEL_MSK
);
2685 if ((fc
& IEEE80211_FCTL_FTYPE
) == IEEE80211_FTYPE_MGMT
) {
2686 if ((fc
& IEEE80211_FCTL_STYPE
) == IEEE80211_STYPE_ASSOC_REQ
||
2687 (fc
& IEEE80211_FCTL_STYPE
) == IEEE80211_STYPE_REASSOC_REQ
)
2688 cmd
->cmd
.tx
.timeout
.pm_frame_timeout
= cpu_to_le16(3);
2690 cmd
->cmd
.tx
.timeout
.pm_frame_timeout
= cpu_to_le16(2);
2692 cmd
->cmd
.tx
.timeout
.pm_frame_timeout
= 0;
2694 cmd
->cmd
.tx
.driver_txop
= 0;
2695 cmd
->cmd
.tx
.tx_flags
= tx_flags
;
2696 cmd
->cmd
.tx
.next_frame_len
= 0;
2700 * iwl3945_get_sta_id - Find station's index within station table
2702 static int iwl3945_get_sta_id(struct iwl3945_priv
*priv
, struct ieee80211_hdr
*hdr
)
2705 u16 fc
= le16_to_cpu(hdr
->frame_control
);
2707 /* If this frame is broadcast or management, use broadcast station id */
2708 if (((fc
& IEEE80211_FCTL_FTYPE
) != IEEE80211_FTYPE_DATA
) ||
2709 is_multicast_ether_addr(hdr
->addr1
))
2710 return priv
->hw_setting
.bcast_sta_id
;
2712 switch (priv
->iw_mode
) {
2714 /* If we are a client station in a BSS network, use the special
2715 * AP station entry (that's the only station we communicate with) */
2716 case IEEE80211_IF_TYPE_STA
:
2719 /* If we are an AP, then find the station, or use BCAST */
2720 case IEEE80211_IF_TYPE_AP
:
2721 sta_id
= iwl3945_hw_find_station(priv
, hdr
->addr1
);
2722 if (sta_id
!= IWL_INVALID_STATION
)
2724 return priv
->hw_setting
.bcast_sta_id
;
2726 /* If this frame is going out to an IBSS network, find the station,
2727 * or create a new station table entry */
2728 case IEEE80211_IF_TYPE_IBSS
: {
2729 DECLARE_MAC_BUF(mac
);
2731 /* Create new station table entry */
2732 sta_id
= iwl3945_hw_find_station(priv
, hdr
->addr1
);
2733 if (sta_id
!= IWL_INVALID_STATION
)
2736 sta_id
= iwl3945_add_station(priv
, hdr
->addr1
, 0, CMD_ASYNC
);
2738 if (sta_id
!= IWL_INVALID_STATION
)
2741 IWL_DEBUG_DROP("Station %s not in station map. "
2742 "Defaulting to broadcast...\n",
2743 print_mac(mac
, hdr
->addr1
));
2744 iwl3945_print_hex_dump(IWL_DL_DROP
, (u8
*) hdr
, sizeof(*hdr
));
2745 return priv
->hw_setting
.bcast_sta_id
;
2748 IWL_WARNING("Unknown mode of operation: %d", priv
->iw_mode
);
2749 return priv
->hw_setting
.bcast_sta_id
;
2754 * start REPLY_TX command process
2756 static int iwl3945_tx_skb(struct iwl3945_priv
*priv
,
2757 struct sk_buff
*skb
, struct ieee80211_tx_control
*ctl
)
2759 struct ieee80211_hdr
*hdr
= (struct ieee80211_hdr
*)skb
->data
;
2760 struct iwl3945_tfd_frame
*tfd
;
2762 int txq_id
= ctl
->queue
;
2763 struct iwl3945_tx_queue
*txq
= NULL
;
2764 struct iwl3945_queue
*q
= NULL
;
2765 dma_addr_t phys_addr
;
2766 dma_addr_t txcmd_phys
;
2767 struct iwl3945_cmd
*out_cmd
= NULL
;
2768 u16 len
, idx
, len_org
;
2769 u8 id
, hdr_len
, unicast
;
2774 u8 wait_write_ptr
= 0;
2775 unsigned long flags
;
2778 spin_lock_irqsave(&priv
->lock
, flags
);
2779 if (iwl3945_is_rfkill(priv
)) {
2780 IWL_DEBUG_DROP("Dropping - RF KILL\n");
2785 IWL_DEBUG_DROP("Dropping - !priv->vif\n");
2789 if ((ctl
->tx_rate
->hw_value
& 0xFF) == IWL_INVALID_RATE
) {
2790 IWL_ERROR("ERROR: No TX rate available.\n");
2794 unicast
= !is_multicast_ether_addr(hdr
->addr1
);
2797 fc
= le16_to_cpu(hdr
->frame_control
);
2799 #ifdef CONFIG_IWL3945_DEBUG
2800 if (ieee80211_is_auth(fc
))
2801 IWL_DEBUG_TX("Sending AUTH frame\n");
2802 else if (ieee80211_is_assoc_request(fc
))
2803 IWL_DEBUG_TX("Sending ASSOC frame\n");
2804 else if (ieee80211_is_reassoc_request(fc
))
2805 IWL_DEBUG_TX("Sending REASSOC frame\n");
2808 /* drop all data frame if we are not associated */
2809 if ((!iwl3945_is_associated(priv
) ||
2810 ((priv
->iw_mode
== IEEE80211_IF_TYPE_STA
) && !priv
->assoc_id
)) &&
2811 ((fc
& IEEE80211_FCTL_FTYPE
) == IEEE80211_FTYPE_DATA
)) {
2812 IWL_DEBUG_DROP("Dropping - !iwl3945_is_associated\n");
2816 spin_unlock_irqrestore(&priv
->lock
, flags
);
2818 hdr_len
= ieee80211_get_hdrlen(fc
);
2820 /* Find (or create) index into station table for destination station */
2821 sta_id
= iwl3945_get_sta_id(priv
, hdr
);
2822 if (sta_id
== IWL_INVALID_STATION
) {
2823 DECLARE_MAC_BUF(mac
);
2825 IWL_DEBUG_DROP("Dropping - INVALID STATION: %s\n",
2826 print_mac(mac
, hdr
->addr1
));
2830 IWL_DEBUG_RATE("station Id %d\n", sta_id
);
2832 qc
= ieee80211_get_qos_ctrl(hdr
);
2834 u8 tid
= (u8
)(le16_to_cpu(*qc
) & 0xf);
2835 seq_number
= priv
->stations
[sta_id
].tid
[tid
].seq_number
&
2837 hdr
->seq_ctrl
= cpu_to_le16(seq_number
) |
2839 __constant_cpu_to_le16(IEEE80211_SCTL_FRAG
));
2843 /* Descriptor for chosen Tx queue */
2844 txq
= &priv
->txq
[txq_id
];
2847 spin_lock_irqsave(&priv
->lock
, flags
);
2849 /* Set up first empty TFD within this queue's circular TFD buffer */
2850 tfd
= &txq
->bd
[q
->write_ptr
];
2851 memset(tfd
, 0, sizeof(*tfd
));
2852 control_flags
= (u32
*) tfd
;
2853 idx
= get_cmd_index(q
, q
->write_ptr
, 0);
2855 /* Set up driver data for this TFD */
2856 memset(&(txq
->txb
[q
->write_ptr
]), 0, sizeof(struct iwl3945_tx_info
));
2857 txq
->txb
[q
->write_ptr
].skb
[0] = skb
;
2858 memcpy(&(txq
->txb
[q
->write_ptr
].status
.control
),
2859 ctl
, sizeof(struct ieee80211_tx_control
));
2861 /* Init first empty entry in queue's array of Tx/cmd buffers */
2862 out_cmd
= &txq
->cmd
[idx
];
2863 memset(&out_cmd
->hdr
, 0, sizeof(out_cmd
->hdr
));
2864 memset(&out_cmd
->cmd
.tx
, 0, sizeof(out_cmd
->cmd
.tx
));
2867 * Set up the Tx-command (not MAC!) header.
2868 * Store the chosen Tx queue and TFD index within the sequence field;
2869 * after Tx, uCode's Tx response will return this value so driver can
2870 * locate the frame within the tx queue and do post-tx processing.
2872 out_cmd
->hdr
.cmd
= REPLY_TX
;
2873 out_cmd
->hdr
.sequence
= cpu_to_le16((u16
)(QUEUE_TO_SEQ(txq_id
) |
2874 INDEX_TO_SEQ(q
->write_ptr
)));
2876 /* Copy MAC header from skb into command buffer */
2877 memcpy(out_cmd
->cmd
.tx
.hdr
, hdr
, hdr_len
);
2880 * Use the first empty entry in this queue's command buffer array
2881 * to contain the Tx command and MAC header concatenated together
2882 * (payload data will be in another buffer).
2883 * Size of this varies, due to varying MAC header length.
2884 * If end is not dword aligned, we'll have 2 extra bytes at the end
2885 * of the MAC header (device reads on dword boundaries).
2886 * We'll tell device about this padding later.
2888 len
= priv
->hw_setting
.tx_cmd_len
+
2889 sizeof(struct iwl3945_cmd_header
) + hdr_len
;
2892 len
= (len
+ 3) & ~3;
2899 /* Physical address of this Tx command's header (not MAC header!),
2900 * within command buffer array. */
2901 txcmd_phys
= txq
->dma_addr_cmd
+ sizeof(struct iwl3945_cmd
) * idx
+
2902 offsetof(struct iwl3945_cmd
, hdr
);
2904 /* Add buffer containing Tx command and MAC(!) header to TFD's
2906 iwl3945_hw_txq_attach_buf_to_tfd(priv
, tfd
, txcmd_phys
, len
);
2908 if (!(ctl
->flags
& IEEE80211_TXCTL_DO_NOT_ENCRYPT
))
2909 iwl3945_build_tx_cmd_hwcrypto(priv
, ctl
, out_cmd
, skb
, 0);
2911 /* Set up TFD's 2nd entry to point directly to remainder of skb,
2912 * if any (802.11 null frames have no payload). */
2913 len
= skb
->len
- hdr_len
;
2915 phys_addr
= pci_map_single(priv
->pci_dev
, skb
->data
+ hdr_len
,
2916 len
, PCI_DMA_TODEVICE
);
2917 iwl3945_hw_txq_attach_buf_to_tfd(priv
, tfd
, phys_addr
, len
);
2921 /* If there is no payload, then we use only one Tx buffer */
2922 *control_flags
= TFD_CTL_COUNT_SET(1);
2924 /* Else use 2 buffers.
2925 * Tell 3945 about any padding after MAC header */
2926 *control_flags
= TFD_CTL_COUNT_SET(2) |
2927 TFD_CTL_PAD_SET(U32_PAD(len
));
2929 /* Total # bytes to be transmitted */
2930 len
= (u16
)skb
->len
;
2931 out_cmd
->cmd
.tx
.len
= cpu_to_le16(len
);
2933 /* TODO need this for burst mode later on */
2934 iwl3945_build_tx_cmd_basic(priv
, out_cmd
, ctl
, hdr
, unicast
, sta_id
);
2936 /* set is_hcca to 0; it probably will never be implemented */
2937 iwl3945_hw_build_tx_cmd_rate(priv
, out_cmd
, ctl
, hdr
, sta_id
, 0);
2939 out_cmd
->cmd
.tx
.tx_flags
&= ~TX_CMD_FLG_ANT_A_MSK
;
2940 out_cmd
->cmd
.tx
.tx_flags
&= ~TX_CMD_FLG_ANT_B_MSK
;
2942 if (!ieee80211_get_morefrag(hdr
)) {
2943 txq
->need_update
= 1;
2945 u8 tid
= (u8
)(le16_to_cpu(*qc
) & 0xf);
2946 priv
->stations
[sta_id
].tid
[tid
].seq_number
= seq_number
;
2950 txq
->need_update
= 0;
2953 iwl3945_print_hex_dump(IWL_DL_TX
, out_cmd
->cmd
.payload
,
2954 sizeof(out_cmd
->cmd
.tx
));
2956 iwl3945_print_hex_dump(IWL_DL_TX
, (u8
*)out_cmd
->cmd
.tx
.hdr
,
2957 ieee80211_get_hdrlen(fc
));
2959 /* Tell device the write index *just past* this latest filled TFD */
2960 q
->write_ptr
= iwl3945_queue_inc_wrap(q
->write_ptr
, q
->n_bd
);
2961 rc
= iwl3945_tx_queue_update_write_ptr(priv
, txq
);
2962 spin_unlock_irqrestore(&priv
->lock
, flags
);
2967 if ((iwl3945_queue_space(q
) < q
->high_mark
)
2968 && priv
->mac80211_registered
) {
2969 if (wait_write_ptr
) {
2970 spin_lock_irqsave(&priv
->lock
, flags
);
2971 txq
->need_update
= 1;
2972 iwl3945_tx_queue_update_write_ptr(priv
, txq
);
2973 spin_unlock_irqrestore(&priv
->lock
, flags
);
2976 ieee80211_stop_queue(priv
->hw
, ctl
->queue
);
2982 spin_unlock_irqrestore(&priv
->lock
, flags
);
2987 static void iwl3945_set_rate(struct iwl3945_priv
*priv
)
2989 const struct ieee80211_supported_band
*sband
= NULL
;
2990 struct ieee80211_rate
*rate
;
2993 sband
= iwl3945_get_band(priv
, priv
->band
);
2995 IWL_ERROR("Failed to set rate: unable to get hw mode\n");
2999 priv
->active_rate
= 0;
3000 priv
->active_rate_basic
= 0;
3002 IWL_DEBUG_RATE("Setting rates for %s GHz\n",
3003 sband
->band
== IEEE80211_BAND_2GHZ
? "2.4" : "5");
3005 for (i
= 0; i
< sband
->n_bitrates
; i
++) {
3006 rate
= &sband
->bitrates
[i
];
3007 if ((rate
->hw_value
< IWL_RATE_COUNT
) &&
3008 !(rate
->flags
& IEEE80211_CHAN_DISABLED
)) {
3009 IWL_DEBUG_RATE("Adding rate index %d (plcp %d)\n",
3010 rate
->hw_value
, iwl3945_rates
[rate
->hw_value
].plcp
);
3011 priv
->active_rate
|= (1 << rate
->hw_value
);
3015 IWL_DEBUG_RATE("Set active_rate = %0x, active_rate_basic = %0x\n",
3016 priv
->active_rate
, priv
->active_rate_basic
);
3019 * If a basic rate is configured, then use it (adding IWL_RATE_1M_MASK)
3020 * otherwise set it to the default of all CCK rates and 6, 12, 24 for
3023 if (priv
->active_rate_basic
& IWL_CCK_BASIC_RATES_MASK
)
3024 priv
->staging_rxon
.cck_basic_rates
=
3025 ((priv
->active_rate_basic
&
3026 IWL_CCK_RATES_MASK
) >> IWL_FIRST_CCK_RATE
) & 0xF;
3028 priv
->staging_rxon
.cck_basic_rates
=
3029 (IWL_CCK_BASIC_RATES_MASK
>> IWL_FIRST_CCK_RATE
) & 0xF;
3031 if (priv
->active_rate_basic
& IWL_OFDM_BASIC_RATES_MASK
)
3032 priv
->staging_rxon
.ofdm_basic_rates
=
3033 ((priv
->active_rate_basic
&
3034 (IWL_OFDM_BASIC_RATES_MASK
| IWL_RATE_6M_MASK
)) >>
3035 IWL_FIRST_OFDM_RATE
) & 0xFF;
3037 priv
->staging_rxon
.ofdm_basic_rates
=
3038 (IWL_OFDM_BASIC_RATES_MASK
>> IWL_FIRST_OFDM_RATE
) & 0xFF;
3041 static void iwl3945_radio_kill_sw(struct iwl3945_priv
*priv
, int disable_radio
)
3043 unsigned long flags
;
3045 if (!!disable_radio
== test_bit(STATUS_RF_KILL_SW
, &priv
->status
))
3048 IWL_DEBUG_RF_KILL("Manual SW RF KILL set to: RADIO %s\n",
3049 disable_radio
? "OFF" : "ON");
3051 if (disable_radio
) {
3052 iwl3945_scan_cancel(priv
);
3053 /* FIXME: This is a workaround for AP */
3054 if (priv
->iw_mode
!= IEEE80211_IF_TYPE_AP
) {
3055 spin_lock_irqsave(&priv
->lock
, flags
);
3056 iwl3945_write32(priv
, CSR_UCODE_DRV_GP1_SET
,
3057 CSR_UCODE_SW_BIT_RFKILL
);
3058 spin_unlock_irqrestore(&priv
->lock
, flags
);
3059 iwl3945_send_card_state(priv
, CARD_STATE_CMD_DISABLE
, 0);
3060 set_bit(STATUS_RF_KILL_SW
, &priv
->status
);
3065 spin_lock_irqsave(&priv
->lock
, flags
);
3066 iwl3945_write32(priv
, CSR_UCODE_DRV_GP1_CLR
, CSR_UCODE_SW_BIT_RFKILL
);
3068 clear_bit(STATUS_RF_KILL_SW
, &priv
->status
);
3069 spin_unlock_irqrestore(&priv
->lock
, flags
);
3074 spin_lock_irqsave(&priv
->lock
, flags
);
3075 iwl3945_read32(priv
, CSR_UCODE_DRV_GP1
);
3076 if (!iwl3945_grab_nic_access(priv
))
3077 iwl3945_release_nic_access(priv
);
3078 spin_unlock_irqrestore(&priv
->lock
, flags
);
3080 if (test_bit(STATUS_RF_KILL_HW
, &priv
->status
)) {
3081 IWL_DEBUG_RF_KILL("Can not turn radio back on - "
3082 "disabled by HW switch\n");
3086 queue_work(priv
->workqueue
, &priv
->restart
);
3090 void iwl3945_set_decrypted_flag(struct iwl3945_priv
*priv
, struct sk_buff
*skb
,
3091 u32 decrypt_res
, struct ieee80211_rx_status
*stats
)
3094 le16_to_cpu(((struct ieee80211_hdr
*)skb
->data
)->frame_control
);
3096 if (priv
->active_rxon
.filter_flags
& RXON_FILTER_DIS_DECRYPT_MSK
)
3099 if (!(fc
& IEEE80211_FCTL_PROTECTED
))
3102 IWL_DEBUG_RX("decrypt_res:0x%x\n", decrypt_res
);
3103 switch (decrypt_res
& RX_RES_STATUS_SEC_TYPE_MSK
) {
3104 case RX_RES_STATUS_SEC_TYPE_TKIP
:
3105 if ((decrypt_res
& RX_RES_STATUS_DECRYPT_TYPE_MSK
) ==
3106 RX_RES_STATUS_BAD_ICV_MIC
)
3107 stats
->flag
|= RX_FLAG_MMIC_ERROR
;
3108 case RX_RES_STATUS_SEC_TYPE_WEP
:
3109 case RX_RES_STATUS_SEC_TYPE_CCMP
:
3110 if ((decrypt_res
& RX_RES_STATUS_DECRYPT_TYPE_MSK
) ==
3111 RX_RES_STATUS_DECRYPT_OK
) {
3112 IWL_DEBUG_RX("hw decrypt successfully!!!\n");
3113 stats
->flag
|= RX_FLAG_DECRYPTED
;
3122 #define IWL_PACKET_RETRY_TIME HZ
3124 int iwl3945_is_duplicate_packet(struct iwl3945_priv
*priv
, struct ieee80211_hdr
*header
)
3126 u16 sc
= le16_to_cpu(header
->seq_ctrl
);
3127 u16 seq
= (sc
& IEEE80211_SCTL_SEQ
) >> 4;
3128 u16 frag
= sc
& IEEE80211_SCTL_FRAG
;
3129 u16
*last_seq
, *last_frag
;
3130 unsigned long *last_time
;
3132 switch (priv
->iw_mode
) {
3133 case IEEE80211_IF_TYPE_IBSS
:{
3134 struct list_head
*p
;
3135 struct iwl3945_ibss_seq
*entry
= NULL
;
3136 u8
*mac
= header
->addr2
;
3137 int index
= mac
[5] & (IWL_IBSS_MAC_HASH_SIZE
- 1);
3139 __list_for_each(p
, &priv
->ibss_mac_hash
[index
]) {
3140 entry
= list_entry(p
, struct iwl3945_ibss_seq
, list
);
3141 if (!compare_ether_addr(entry
->mac
, mac
))
3144 if (p
== &priv
->ibss_mac_hash
[index
]) {
3145 entry
= kzalloc(sizeof(*entry
), GFP_ATOMIC
);
3147 IWL_ERROR("Cannot malloc new mac entry\n");
3150 memcpy(entry
->mac
, mac
, ETH_ALEN
);
3151 entry
->seq_num
= seq
;
3152 entry
->frag_num
= frag
;
3153 entry
->packet_time
= jiffies
;
3154 list_add(&entry
->list
, &priv
->ibss_mac_hash
[index
]);
3157 last_seq
= &entry
->seq_num
;
3158 last_frag
= &entry
->frag_num
;
3159 last_time
= &entry
->packet_time
;
3162 case IEEE80211_IF_TYPE_STA
:
3163 last_seq
= &priv
->last_seq_num
;
3164 last_frag
= &priv
->last_frag_num
;
3165 last_time
= &priv
->last_packet_time
;
3170 if ((*last_seq
== seq
) &&
3171 time_after(*last_time
+ IWL_PACKET_RETRY_TIME
, jiffies
)) {
3172 if (*last_frag
== frag
)
3174 if (*last_frag
+ 1 != frag
)
3175 /* out-of-order fragment */
3181 *last_time
= jiffies
;
3188 #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT
3190 #include "iwl-spectrum.h"
3192 #define BEACON_TIME_MASK_LOW 0x00FFFFFF
3193 #define BEACON_TIME_MASK_HIGH 0xFF000000
3194 #define TIME_UNIT 1024
3197 * extended beacon time format
3198 * time in usec will be changed into a 32-bit value in 8:24 format
3199 * the high 1 byte is the beacon counts
3200 * the lower 3 bytes is the time in usec within one beacon interval
3203 static u32
iwl3945_usecs_to_beacons(u32 usec
, u32 beacon_interval
)
3207 u32 interval
= beacon_interval
* 1024;
3209 if (!interval
|| !usec
)
3212 quot
= (usec
/ interval
) & (BEACON_TIME_MASK_HIGH
>> 24);
3213 rem
= (usec
% interval
) & BEACON_TIME_MASK_LOW
;
3215 return (quot
<< 24) + rem
;
3218 /* base is usually what we get from ucode with each received frame,
3219 * the same as HW timer counter counting down
3222 static __le32
iwl3945_add_beacon_time(u32 base
, u32 addon
, u32 beacon_interval
)
3224 u32 base_low
= base
& BEACON_TIME_MASK_LOW
;
3225 u32 addon_low
= addon
& BEACON_TIME_MASK_LOW
;
3226 u32 interval
= beacon_interval
* TIME_UNIT
;
3227 u32 res
= (base
& BEACON_TIME_MASK_HIGH
) +
3228 (addon
& BEACON_TIME_MASK_HIGH
);
3230 if (base_low
> addon_low
)
3231 res
+= base_low
- addon_low
;
3232 else if (base_low
< addon_low
) {
3233 res
+= interval
+ base_low
- addon_low
;
3238 return cpu_to_le32(res
);
3241 static int iwl3945_get_measurement(struct iwl3945_priv
*priv
,
3242 struct ieee80211_measurement_params
*params
,
3245 struct iwl3945_spectrum_cmd spectrum
;
3246 struct iwl3945_rx_packet
*res
;
3247 struct iwl3945_host_cmd cmd
= {
3248 .id
= REPLY_SPECTRUM_MEASUREMENT_CMD
,
3249 .data
= (void *)&spectrum
,
3250 .meta
.flags
= CMD_WANT_SKB
,
3252 u32 add_time
= le64_to_cpu(params
->start_time
);
3254 int spectrum_resp_status
;
3255 int duration
= le16_to_cpu(params
->duration
);
3257 if (iwl3945_is_associated(priv
))
3259 iwl3945_usecs_to_beacons(
3260 le64_to_cpu(params
->start_time
) - priv
->last_tsf
,
3261 le16_to_cpu(priv
->rxon_timing
.beacon_interval
));
3263 memset(&spectrum
, 0, sizeof(spectrum
));
3265 spectrum
.channel_count
= cpu_to_le16(1);
3267 RXON_FLG_TSF2HOST_MSK
| RXON_FLG_ANT_A_MSK
| RXON_FLG_DIS_DIV_MSK
;
3268 spectrum
.filter_flags
= MEASUREMENT_FILTER_FLAG
;
3269 cmd
.len
= sizeof(spectrum
);
3270 spectrum
.len
= cpu_to_le16(cmd
.len
- sizeof(spectrum
.len
));
3272 if (iwl3945_is_associated(priv
))
3273 spectrum
.start_time
=
3274 iwl3945_add_beacon_time(priv
->last_beacon_time
,
3276 le16_to_cpu(priv
->rxon_timing
.beacon_interval
));
3278 spectrum
.start_time
= 0;
3280 spectrum
.channels
[0].duration
= cpu_to_le32(duration
* TIME_UNIT
);
3281 spectrum
.channels
[0].channel
= params
->channel
;
3282 spectrum
.channels
[0].type
= type
;
3283 if (priv
->active_rxon
.flags
& RXON_FLG_BAND_24G_MSK
)
3284 spectrum
.flags
|= RXON_FLG_BAND_24G_MSK
|
3285 RXON_FLG_AUTO_DETECT_MSK
| RXON_FLG_TGG_PROTECT_MSK
;
3287 rc
= iwl3945_send_cmd_sync(priv
, &cmd
);
3291 res
= (struct iwl3945_rx_packet
*)cmd
.meta
.u
.skb
->data
;
3292 if (res
->hdr
.flags
& IWL_CMD_FAILED_MSK
) {
3293 IWL_ERROR("Bad return from REPLY_RX_ON_ASSOC command\n");
3297 spectrum_resp_status
= le16_to_cpu(res
->u
.spectrum
.status
);
3298 switch (spectrum_resp_status
) {
3299 case 0: /* Command will be handled */
3300 if (res
->u
.spectrum
.id
!= 0xff) {
3301 IWL_DEBUG_INFO("Replaced existing measurement: %d\n",
3302 res
->u
.spectrum
.id
);
3303 priv
->measurement_status
&= ~MEASUREMENT_READY
;
3305 priv
->measurement_status
|= MEASUREMENT_ACTIVE
;
3309 case 1: /* Command will not be handled */
3314 dev_kfree_skb_any(cmd
.meta
.u
.skb
);
3320 static void iwl3945_txstatus_to_ieee(struct iwl3945_priv
*priv
,
3321 struct iwl3945_tx_info
*tx_sta
)
3324 tx_sta
->status
.ack_signal
= 0;
3325 tx_sta
->status
.excessive_retries
= 0;
3326 tx_sta
->status
.queue_length
= 0;
3327 tx_sta
->status
.queue_number
= 0;
3330 ieee80211_tx_status_irqsafe(priv
->hw
,
3331 tx_sta
->skb
[0], &(tx_sta
->status
));
3333 ieee80211_tx_status(priv
->hw
,
3334 tx_sta
->skb
[0], &(tx_sta
->status
));
3336 tx_sta
->skb
[0] = NULL
;
3340 * iwl3945_tx_queue_reclaim - Reclaim Tx queue entries already Tx'd
3342 * When FW advances 'R' index, all entries between old and new 'R' index
3343 * need to be reclaimed. As result, some free space forms. If there is
3344 * enough free space (> low mark), wake the stack that feeds us.
3346 static int iwl3945_tx_queue_reclaim(struct iwl3945_priv
*priv
, int txq_id
, int index
)
3348 struct iwl3945_tx_queue
*txq
= &priv
->txq
[txq_id
];
3349 struct iwl3945_queue
*q
= &txq
->q
;
3352 if ((index
>= q
->n_bd
) || (x2_queue_used(q
, index
) == 0)) {
3353 IWL_ERROR("Read index for DMA queue txq id (%d), index %d, "
3354 "is out of range [0-%d] %d %d.\n", txq_id
,
3355 index
, q
->n_bd
, q
->write_ptr
, q
->read_ptr
);
3359 for (index
= iwl3945_queue_inc_wrap(index
, q
->n_bd
);
3360 q
->read_ptr
!= index
;
3361 q
->read_ptr
= iwl3945_queue_inc_wrap(q
->read_ptr
, q
->n_bd
)) {
3362 if (txq_id
!= IWL_CMD_QUEUE_NUM
) {
3363 iwl3945_txstatus_to_ieee(priv
,
3364 &(txq
->txb
[txq
->q
.read_ptr
]));
3365 iwl3945_hw_txq_free_tfd(priv
, txq
);
3366 } else if (nfreed
> 1) {
3367 IWL_ERROR("HCMD skipped: index (%d) %d %d\n", index
,
3368 q
->write_ptr
, q
->read_ptr
);
3369 queue_work(priv
->workqueue
, &priv
->restart
);
3374 if (iwl3945_queue_space(q
) > q
->low_mark
&& (txq_id
>= 0) &&
3375 (txq_id
!= IWL_CMD_QUEUE_NUM
) &&
3376 priv
->mac80211_registered
)
3377 ieee80211_wake_queue(priv
->hw
, txq_id
);
3383 static int iwl3945_is_tx_success(u32 status
)
3385 return (status
& 0xFF) == 0x1;
3388 /******************************************************************************
3390 * Generic RX handler implementations
3392 ******************************************************************************/
3394 * iwl3945_rx_reply_tx - Handle Tx response
3396 static void iwl3945_rx_reply_tx(struct iwl3945_priv
*priv
,
3397 struct iwl3945_rx_mem_buffer
*rxb
)
3399 struct iwl3945_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3400 u16 sequence
= le16_to_cpu(pkt
->hdr
.sequence
);
3401 int txq_id
= SEQ_TO_QUEUE(sequence
);
3402 int index
= SEQ_TO_INDEX(sequence
);
3403 struct iwl3945_tx_queue
*txq
= &priv
->txq
[txq_id
];
3404 struct ieee80211_tx_status
*tx_status
;
3405 struct iwl3945_tx_resp
*tx_resp
= (void *)&pkt
->u
.raw
[0];
3406 u32 status
= le32_to_cpu(tx_resp
->status
);
3408 if ((index
>= txq
->q
.n_bd
) || (x2_queue_used(&txq
->q
, index
) == 0)) {
3409 IWL_ERROR("Read index for DMA queue txq_id (%d) index %d "
3410 "is out of range [0-%d] %d %d\n", txq_id
,
3411 index
, txq
->q
.n_bd
, txq
->q
.write_ptr
,
3416 tx_status
= &(txq
->txb
[txq
->q
.read_ptr
].status
);
3418 tx_status
->retry_count
= tx_resp
->failure_frame
;
3419 tx_status
->queue_number
= status
;
3420 tx_status
->queue_length
= tx_resp
->bt_kill_count
;
3421 tx_status
->queue_length
|= tx_resp
->failure_rts
;
3424 iwl3945_is_tx_success(status
) ? IEEE80211_TX_STATUS_ACK
: 0;
3426 IWL_DEBUG_TX("Tx queue %d Status %s (0x%08x) plcp rate %d retries %d\n",
3427 txq_id
, iwl3945_get_tx_fail_reason(status
), status
,
3428 tx_resp
->rate
, tx_resp
->failure_frame
);
3430 IWL_DEBUG_TX_REPLY("Tx queue reclaim %d\n", index
);
3432 iwl3945_tx_queue_reclaim(priv
, txq_id
, index
);
3434 if (iwl_check_bits(status
, TX_ABORT_REQUIRED_MSK
))
3435 IWL_ERROR("TODO: Implement Tx ABORT REQUIRED!!!\n");
3439 static void iwl3945_rx_reply_alive(struct iwl3945_priv
*priv
,
3440 struct iwl3945_rx_mem_buffer
*rxb
)
3442 struct iwl3945_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3443 struct iwl3945_alive_resp
*palive
;
3444 struct delayed_work
*pwork
;
3446 palive
= &pkt
->u
.alive_frame
;
3448 IWL_DEBUG_INFO("Alive ucode status 0x%08X revision "
3450 palive
->is_valid
, palive
->ver_type
,
3451 palive
->ver_subtype
);
3453 if (palive
->ver_subtype
== INITIALIZE_SUBTYPE
) {
3454 IWL_DEBUG_INFO("Initialization Alive received.\n");
3455 memcpy(&priv
->card_alive_init
,
3456 &pkt
->u
.alive_frame
,
3457 sizeof(struct iwl3945_init_alive_resp
));
3458 pwork
= &priv
->init_alive_start
;
3460 IWL_DEBUG_INFO("Runtime Alive received.\n");
3461 memcpy(&priv
->card_alive
, &pkt
->u
.alive_frame
,
3462 sizeof(struct iwl3945_alive_resp
));
3463 pwork
= &priv
->alive_start
;
3464 iwl3945_disable_events(priv
);
3467 /* We delay the ALIVE response by 5ms to
3468 * give the HW RF Kill time to activate... */
3469 if (palive
->is_valid
== UCODE_VALID_OK
)
3470 queue_delayed_work(priv
->workqueue
, pwork
,
3471 msecs_to_jiffies(5));
3473 IWL_WARNING("uCode did not respond OK.\n");
3476 static void iwl3945_rx_reply_add_sta(struct iwl3945_priv
*priv
,
3477 struct iwl3945_rx_mem_buffer
*rxb
)
3479 struct iwl3945_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3481 IWL_DEBUG_RX("Received REPLY_ADD_STA: 0x%02X\n", pkt
->u
.status
);
3485 static void iwl3945_rx_reply_error(struct iwl3945_priv
*priv
,
3486 struct iwl3945_rx_mem_buffer
*rxb
)
3488 struct iwl3945_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3490 IWL_ERROR("Error Reply type 0x%08X cmd %s (0x%02X) "
3491 "seq 0x%04X ser 0x%08X\n",
3492 le32_to_cpu(pkt
->u
.err_resp
.error_type
),
3493 get_cmd_string(pkt
->u
.err_resp
.cmd_id
),
3494 pkt
->u
.err_resp
.cmd_id
,
3495 le16_to_cpu(pkt
->u
.err_resp
.bad_cmd_seq_num
),
3496 le32_to_cpu(pkt
->u
.err_resp
.error_info
));
3499 #define TX_STATUS_ENTRY(x) case TX_STATUS_FAIL_ ## x: return #x
3501 static void iwl3945_rx_csa(struct iwl3945_priv
*priv
, struct iwl3945_rx_mem_buffer
*rxb
)
3503 struct iwl3945_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3504 struct iwl3945_rxon_cmd
*rxon
= (void *)&priv
->active_rxon
;
3505 struct iwl3945_csa_notification
*csa
= &(pkt
->u
.csa_notif
);
3506 IWL_DEBUG_11H("CSA notif: channel %d, status %d\n",
3507 le16_to_cpu(csa
->channel
), le32_to_cpu(csa
->status
));
3508 rxon
->channel
= csa
->channel
;
3509 priv
->staging_rxon
.channel
= csa
->channel
;
3512 static void iwl3945_rx_spectrum_measure_notif(struct iwl3945_priv
*priv
,
3513 struct iwl3945_rx_mem_buffer
*rxb
)
3515 #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT
3516 struct iwl3945_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3517 struct iwl3945_spectrum_notification
*report
= &(pkt
->u
.spectrum_notif
);
3519 if (!report
->state
) {
3520 IWL_DEBUG(IWL_DL_11H
| IWL_DL_INFO
,
3521 "Spectrum Measure Notification: Start\n");
3525 memcpy(&priv
->measure_report
, report
, sizeof(*report
));
3526 priv
->measurement_status
|= MEASUREMENT_READY
;
3530 static void iwl3945_rx_pm_sleep_notif(struct iwl3945_priv
*priv
,
3531 struct iwl3945_rx_mem_buffer
*rxb
)
3533 #ifdef CONFIG_IWL3945_DEBUG
3534 struct iwl3945_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3535 struct iwl3945_sleep_notification
*sleep
= &(pkt
->u
.sleep_notif
);
3536 IWL_DEBUG_RX("sleep mode: %d, src: %d\n",
3537 sleep
->pm_sleep_mode
, sleep
->pm_wakeup_src
);
3541 static void iwl3945_rx_pm_debug_statistics_notif(struct iwl3945_priv
*priv
,
3542 struct iwl3945_rx_mem_buffer
*rxb
)
3544 struct iwl3945_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3545 IWL_DEBUG_RADIO("Dumping %d bytes of unhandled "
3546 "notification for %s:\n",
3547 le32_to_cpu(pkt
->len
), get_cmd_string(pkt
->hdr
.cmd
));
3548 iwl3945_print_hex_dump(IWL_DL_RADIO
, pkt
->u
.raw
, le32_to_cpu(pkt
->len
));
3551 static void iwl3945_bg_beacon_update(struct work_struct
*work
)
3553 struct iwl3945_priv
*priv
=
3554 container_of(work
, struct iwl3945_priv
, beacon_update
);
3555 struct sk_buff
*beacon
;
3557 /* Pull updated AP beacon from mac80211. will fail if not in AP mode */
3558 beacon
= ieee80211_beacon_get(priv
->hw
, priv
->vif
, NULL
);
3561 IWL_ERROR("update beacon failed\n");
3565 mutex_lock(&priv
->mutex
);
3566 /* new beacon skb is allocated every time; dispose previous.*/
3567 if (priv
->ibss_beacon
)
3568 dev_kfree_skb(priv
->ibss_beacon
);
3570 priv
->ibss_beacon
= beacon
;
3571 mutex_unlock(&priv
->mutex
);
3573 iwl3945_send_beacon_cmd(priv
);
3576 static void iwl3945_rx_beacon_notif(struct iwl3945_priv
*priv
,
3577 struct iwl3945_rx_mem_buffer
*rxb
)
3579 #ifdef CONFIG_IWL3945_DEBUG
3580 struct iwl3945_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3581 struct iwl3945_beacon_notif
*beacon
= &(pkt
->u
.beacon_status
);
3582 u8 rate
= beacon
->beacon_notify_hdr
.rate
;
3584 IWL_DEBUG_RX("beacon status %x retries %d iss %d "
3585 "tsf %d %d rate %d\n",
3586 le32_to_cpu(beacon
->beacon_notify_hdr
.status
) & TX_STATUS_MSK
,
3587 beacon
->beacon_notify_hdr
.failure_frame
,
3588 le32_to_cpu(beacon
->ibss_mgr_status
),
3589 le32_to_cpu(beacon
->high_tsf
),
3590 le32_to_cpu(beacon
->low_tsf
), rate
);
3593 if ((priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) &&
3594 (!test_bit(STATUS_EXIT_PENDING
, &priv
->status
)))
3595 queue_work(priv
->workqueue
, &priv
->beacon_update
);
3598 /* Service response to REPLY_SCAN_CMD (0x80) */
3599 static void iwl3945_rx_reply_scan(struct iwl3945_priv
*priv
,
3600 struct iwl3945_rx_mem_buffer
*rxb
)
3602 #ifdef CONFIG_IWL3945_DEBUG
3603 struct iwl3945_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3604 struct iwl3945_scanreq_notification
*notif
=
3605 (struct iwl3945_scanreq_notification
*)pkt
->u
.raw
;
3607 IWL_DEBUG_RX("Scan request status = 0x%x\n", notif
->status
);
3611 /* Service SCAN_START_NOTIFICATION (0x82) */
3612 static void iwl3945_rx_scan_start_notif(struct iwl3945_priv
*priv
,
3613 struct iwl3945_rx_mem_buffer
*rxb
)
3615 struct iwl3945_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3616 struct iwl3945_scanstart_notification
*notif
=
3617 (struct iwl3945_scanstart_notification
*)pkt
->u
.raw
;
3618 priv
->scan_start_tsf
= le32_to_cpu(notif
->tsf_low
);
3619 IWL_DEBUG_SCAN("Scan start: "
3621 "(TSF: 0x%08X:%08X) - %d (beacon timer %u)\n",
3623 notif
->band
? "bg" : "a",
3625 notif
->tsf_low
, notif
->status
, notif
->beacon_timer
);
3628 /* Service SCAN_RESULTS_NOTIFICATION (0x83) */
3629 static void iwl3945_rx_scan_results_notif(struct iwl3945_priv
*priv
,
3630 struct iwl3945_rx_mem_buffer
*rxb
)
3632 struct iwl3945_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3633 struct iwl3945_scanresults_notification
*notif
=
3634 (struct iwl3945_scanresults_notification
*)pkt
->u
.raw
;
3636 IWL_DEBUG_SCAN("Scan ch.res: "
3638 "(TSF: 0x%08X:%08X) - %d "
3639 "elapsed=%lu usec (%dms since last)\n",
3641 notif
->band
? "bg" : "a",
3642 le32_to_cpu(notif
->tsf_high
),
3643 le32_to_cpu(notif
->tsf_low
),
3644 le32_to_cpu(notif
->statistics
[0]),
3645 le32_to_cpu(notif
->tsf_low
) - priv
->scan_start_tsf
,
3646 jiffies_to_msecs(elapsed_jiffies
3647 (priv
->last_scan_jiffies
, jiffies
)));
3649 priv
->last_scan_jiffies
= jiffies
;
3650 priv
->next_scan_jiffies
= 0;
3653 /* Service SCAN_COMPLETE_NOTIFICATION (0x84) */
3654 static void iwl3945_rx_scan_complete_notif(struct iwl3945_priv
*priv
,
3655 struct iwl3945_rx_mem_buffer
*rxb
)
3657 struct iwl3945_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3658 struct iwl3945_scancomplete_notification
*scan_notif
= (void *)pkt
->u
.raw
;
3660 IWL_DEBUG_SCAN("Scan complete: %d channels (TSF 0x%08X:%08X) - %d\n",
3661 scan_notif
->scanned_channels
,
3662 scan_notif
->tsf_low
,
3663 scan_notif
->tsf_high
, scan_notif
->status
);
3665 /* The HW is no longer scanning */
3666 clear_bit(STATUS_SCAN_HW
, &priv
->status
);
3668 /* The scan completion notification came in, so kill that timer... */
3669 cancel_delayed_work(&priv
->scan_check
);
3671 IWL_DEBUG_INFO("Scan pass on %sGHz took %dms\n",
3672 (priv
->scan_bands
== 2) ? "2.4" : "5.2",
3673 jiffies_to_msecs(elapsed_jiffies
3674 (priv
->scan_pass_start
, jiffies
)));
3676 /* Remove this scanned band from the list
3677 * of pending bands to scan */
3680 /* If a request to abort was given, or the scan did not succeed
3681 * then we reset the scan state machine and terminate,
3682 * re-queuing another scan if one has been requested */
3683 if (test_bit(STATUS_SCAN_ABORTING
, &priv
->status
)) {
3684 IWL_DEBUG_INFO("Aborted scan completed.\n");
3685 clear_bit(STATUS_SCAN_ABORTING
, &priv
->status
);
3687 /* If there are more bands on this scan pass reschedule */
3688 if (priv
->scan_bands
> 0)
3692 priv
->last_scan_jiffies
= jiffies
;
3693 priv
->next_scan_jiffies
= 0;
3694 IWL_DEBUG_INFO("Setting scan to off\n");
3696 clear_bit(STATUS_SCANNING
, &priv
->status
);
3698 IWL_DEBUG_INFO("Scan took %dms\n",
3699 jiffies_to_msecs(elapsed_jiffies(priv
->scan_start
, jiffies
)));
3701 queue_work(priv
->workqueue
, &priv
->scan_completed
);
3706 priv
->scan_pass_start
= jiffies
;
3707 queue_work(priv
->workqueue
, &priv
->request_scan
);
3710 /* Handle notification from uCode that card's power state is changing
3711 * due to software, hardware, or critical temperature RFKILL */
3712 static void iwl3945_rx_card_state_notif(struct iwl3945_priv
*priv
,
3713 struct iwl3945_rx_mem_buffer
*rxb
)
3715 struct iwl3945_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3716 u32 flags
= le32_to_cpu(pkt
->u
.card_state_notif
.flags
);
3717 unsigned long status
= priv
->status
;
3719 IWL_DEBUG_RF_KILL("Card state received: HW:%s SW:%s\n",
3720 (flags
& HW_CARD_DISABLED
) ? "Kill" : "On",
3721 (flags
& SW_CARD_DISABLED
) ? "Kill" : "On");
3723 iwl3945_write32(priv
, CSR_UCODE_DRV_GP1_SET
,
3724 CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED
);
3726 if (flags
& HW_CARD_DISABLED
)
3727 set_bit(STATUS_RF_KILL_HW
, &priv
->status
);
3729 clear_bit(STATUS_RF_KILL_HW
, &priv
->status
);
3732 if (flags
& SW_CARD_DISABLED
)
3733 set_bit(STATUS_RF_KILL_SW
, &priv
->status
);
3735 clear_bit(STATUS_RF_KILL_SW
, &priv
->status
);
3737 iwl3945_scan_cancel(priv
);
3739 if ((test_bit(STATUS_RF_KILL_HW
, &status
) !=
3740 test_bit(STATUS_RF_KILL_HW
, &priv
->status
)) ||
3741 (test_bit(STATUS_RF_KILL_SW
, &status
) !=
3742 test_bit(STATUS_RF_KILL_SW
, &priv
->status
)))
3743 queue_work(priv
->workqueue
, &priv
->rf_kill
);
3745 wake_up_interruptible(&priv
->wait_command_queue
);
3749 * iwl3945_setup_rx_handlers - Initialize Rx handler callbacks
3751 * Setup the RX handlers for each of the reply types sent from the uCode
3754 * This function chains into the hardware specific files for them to setup
3755 * any hardware specific handlers as well.
3757 static void iwl3945_setup_rx_handlers(struct iwl3945_priv
*priv
)
3759 priv
->rx_handlers
[REPLY_ALIVE
] = iwl3945_rx_reply_alive
;
3760 priv
->rx_handlers
[REPLY_ADD_STA
] = iwl3945_rx_reply_add_sta
;
3761 priv
->rx_handlers
[REPLY_ERROR
] = iwl3945_rx_reply_error
;
3762 priv
->rx_handlers
[CHANNEL_SWITCH_NOTIFICATION
] = iwl3945_rx_csa
;
3763 priv
->rx_handlers
[SPECTRUM_MEASURE_NOTIFICATION
] =
3764 iwl3945_rx_spectrum_measure_notif
;
3765 priv
->rx_handlers
[PM_SLEEP_NOTIFICATION
] = iwl3945_rx_pm_sleep_notif
;
3766 priv
->rx_handlers
[PM_DEBUG_STATISTIC_NOTIFIC
] =
3767 iwl3945_rx_pm_debug_statistics_notif
;
3768 priv
->rx_handlers
[BEACON_NOTIFICATION
] = iwl3945_rx_beacon_notif
;
3771 * The same handler is used for both the REPLY to a discrete
3772 * statistics request from the host as well as for the periodic
3773 * statistics notifications (after received beacons) from the uCode.
3775 priv
->rx_handlers
[REPLY_STATISTICS_CMD
] = iwl3945_hw_rx_statistics
;
3776 priv
->rx_handlers
[STATISTICS_NOTIFICATION
] = iwl3945_hw_rx_statistics
;
3778 priv
->rx_handlers
[REPLY_SCAN_CMD
] = iwl3945_rx_reply_scan
;
3779 priv
->rx_handlers
[SCAN_START_NOTIFICATION
] = iwl3945_rx_scan_start_notif
;
3780 priv
->rx_handlers
[SCAN_RESULTS_NOTIFICATION
] =
3781 iwl3945_rx_scan_results_notif
;
3782 priv
->rx_handlers
[SCAN_COMPLETE_NOTIFICATION
] =
3783 iwl3945_rx_scan_complete_notif
;
3784 priv
->rx_handlers
[CARD_STATE_NOTIFICATION
] = iwl3945_rx_card_state_notif
;
3785 priv
->rx_handlers
[REPLY_TX
] = iwl3945_rx_reply_tx
;
3787 /* Set up hardware specific Rx handlers */
3788 iwl3945_hw_rx_handler_setup(priv
);
3792 * iwl3945_tx_cmd_complete - Pull unused buffers off the queue and reclaim them
3793 * @rxb: Rx buffer to reclaim
3795 * If an Rx buffer has an async callback associated with it the callback
3796 * will be executed. The attached skb (if present) will only be freed
3797 * if the callback returns 1
3799 static void iwl3945_tx_cmd_complete(struct iwl3945_priv
*priv
,
3800 struct iwl3945_rx_mem_buffer
*rxb
)
3802 struct iwl3945_rx_packet
*pkt
= (struct iwl3945_rx_packet
*)rxb
->skb
->data
;
3803 u16 sequence
= le16_to_cpu(pkt
->hdr
.sequence
);
3804 int txq_id
= SEQ_TO_QUEUE(sequence
);
3805 int index
= SEQ_TO_INDEX(sequence
);
3806 int huge
= sequence
& SEQ_HUGE_FRAME
;
3808 struct iwl3945_cmd
*cmd
;
3810 /* If a Tx command is being handled and it isn't in the actual
3811 * command queue then there a command routing bug has been introduced
3812 * in the queue management code. */
3813 if (txq_id
!= IWL_CMD_QUEUE_NUM
)
3814 IWL_ERROR("Error wrong command queue %d command id 0x%X\n",
3815 txq_id
, pkt
->hdr
.cmd
);
3816 BUG_ON(txq_id
!= IWL_CMD_QUEUE_NUM
);
3818 cmd_index
= get_cmd_index(&priv
->txq
[IWL_CMD_QUEUE_NUM
].q
, index
, huge
);
3819 cmd
= &priv
->txq
[IWL_CMD_QUEUE_NUM
].cmd
[cmd_index
];
3821 /* Input error checking is done when commands are added to queue. */
3822 if (cmd
->meta
.flags
& CMD_WANT_SKB
) {
3823 cmd
->meta
.source
->u
.skb
= rxb
->skb
;
3825 } else if (cmd
->meta
.u
.callback
&&
3826 !cmd
->meta
.u
.callback(priv
, cmd
, rxb
->skb
))
3829 iwl3945_tx_queue_reclaim(priv
, txq_id
, index
);
3831 if (!(cmd
->meta
.flags
& CMD_ASYNC
)) {
3832 clear_bit(STATUS_HCMD_ACTIVE
, &priv
->status
);
3833 wake_up_interruptible(&priv
->wait_command_queue
);
3837 /************************** RX-FUNCTIONS ****************************/
3839 * Rx theory of operation
3841 * The host allocates 32 DMA target addresses and passes the host address
3842 * to the firmware at register IWL_RFDS_TABLE_LOWER + N * RFD_SIZE where N is
3846 * The host/firmware share two index registers for managing the Rx buffers.
3848 * The READ index maps to the first position that the firmware may be writing
3849 * to -- the driver can read up to (but not including) this position and get
3851 * The READ index is managed by the firmware once the card is enabled.
3853 * The WRITE index maps to the last position the driver has read from -- the
3854 * position preceding WRITE is the last slot the firmware can place a packet.
3856 * The queue is empty (no good data) if WRITE = READ - 1, and is full if
3859 * During initialization, the host sets up the READ queue position to the first
3860 * INDEX position, and WRITE to the last (READ - 1 wrapped)
3862 * When the firmware places a packet in a buffer, it will advance the READ index
3863 * and fire the RX interrupt. The driver can then query the READ index and
3864 * process as many packets as possible, moving the WRITE index forward as it
3865 * resets the Rx queue buffers with new memory.
3867 * The management in the driver is as follows:
3868 * + A list of pre-allocated SKBs is stored in iwl->rxq->rx_free. When
3869 * iwl->rxq->free_count drops to or below RX_LOW_WATERMARK, work is scheduled
3870 * to replenish the iwl->rxq->rx_free.
3871 * + In iwl3945_rx_replenish (scheduled) if 'processed' != 'read' then the
3872 * iwl->rxq is replenished and the READ INDEX is updated (updating the
3873 * 'processed' and 'read' driver indexes as well)
3874 * + A received packet is processed and handed to the kernel network stack,
3875 * detached from the iwl->rxq. The driver 'processed' index is updated.
3876 * + The Host/Firmware iwl->rxq is replenished at tasklet time from the rx_free
3877 * list. If there are no allocated buffers in iwl->rxq->rx_free, the READ
3878 * INDEX is not incremented and iwl->status(RX_STALLED) is set. If there
3879 * were enough free buffers and RX_STALLED is set it is cleared.
3884 * iwl3945_rx_queue_alloc() Allocates rx_free
3885 * iwl3945_rx_replenish() Replenishes rx_free list from rx_used, and calls
3886 * iwl3945_rx_queue_restock
3887 * iwl3945_rx_queue_restock() Moves available buffers from rx_free into Rx
3888 * queue, updates firmware pointers, and updates
3889 * the WRITE index. If insufficient rx_free buffers
3890 * are available, schedules iwl3945_rx_replenish
3892 * -- enable interrupts --
3893 * ISR - iwl3945_rx() Detach iwl3945_rx_mem_buffers from pool up to the
3894 * READ INDEX, detaching the SKB from the pool.
3895 * Moves the packet buffer from queue to rx_used.
3896 * Calls iwl3945_rx_queue_restock to refill any empty
3903 * iwl3945_rx_queue_space - Return number of free slots available in queue.
3905 static int iwl3945_rx_queue_space(const struct iwl3945_rx_queue
*q
)
3907 int s
= q
->read
- q
->write
;
3910 /* keep some buffer to not confuse full and empty queue */
3918 * iwl3945_rx_queue_update_write_ptr - Update the write pointer for the RX queue
3920 int iwl3945_rx_queue_update_write_ptr(struct iwl3945_priv
*priv
, struct iwl3945_rx_queue
*q
)
3924 unsigned long flags
;
3926 spin_lock_irqsave(&q
->lock
, flags
);
3928 if (q
->need_update
== 0)
3931 /* If power-saving is in use, make sure device is awake */
3932 if (test_bit(STATUS_POWER_PMI
, &priv
->status
)) {
3933 reg
= iwl3945_read32(priv
, CSR_UCODE_DRV_GP1
);
3935 if (reg
& CSR_UCODE_DRV_GP1_BIT_MAC_SLEEP
) {
3936 iwl3945_set_bit(priv
, CSR_GP_CNTRL
,
3937 CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ
);
3941 rc
= iwl3945_grab_nic_access(priv
);
3945 /* Device expects a multiple of 8 */
3946 iwl3945_write_direct32(priv
, FH_RSCSR_CHNL0_WPTR
,
3948 iwl3945_release_nic_access(priv
);
3950 /* Else device is assumed to be awake */
3952 /* Device expects a multiple of 8 */
3953 iwl3945_write32(priv
, FH_RSCSR_CHNL0_WPTR
, q
->write
& ~0x7);
3959 spin_unlock_irqrestore(&q
->lock
, flags
);
3964 * iwl3945_dma_addr2rbd_ptr - convert a DMA address to a uCode read buffer ptr
3966 static inline __le32
iwl3945_dma_addr2rbd_ptr(struct iwl3945_priv
*priv
,
3967 dma_addr_t dma_addr
)
3969 return cpu_to_le32((u32
)dma_addr
);
3973 * iwl3945_rx_queue_restock - refill RX queue from pre-allocated pool
3975 * If there are slots in the RX queue that need to be restocked,
3976 * and we have free pre-allocated buffers, fill the ranks as much
3977 * as we can, pulling from rx_free.
3979 * This moves the 'write' index forward to catch up with 'processed', and
3980 * also updates the memory address in the firmware to reference the new
3983 static int iwl3945_rx_queue_restock(struct iwl3945_priv
*priv
)
3985 struct iwl3945_rx_queue
*rxq
= &priv
->rxq
;
3986 struct list_head
*element
;
3987 struct iwl3945_rx_mem_buffer
*rxb
;
3988 unsigned long flags
;
3991 spin_lock_irqsave(&rxq
->lock
, flags
);
3992 write
= rxq
->write
& ~0x7;
3993 while ((iwl3945_rx_queue_space(rxq
) > 0) && (rxq
->free_count
)) {
3994 /* Get next free Rx buffer, remove from free list */
3995 element
= rxq
->rx_free
.next
;
3996 rxb
= list_entry(element
, struct iwl3945_rx_mem_buffer
, list
);
3999 /* Point to Rx buffer via next RBD in circular buffer */
4000 rxq
->bd
[rxq
->write
] = iwl3945_dma_addr2rbd_ptr(priv
, rxb
->dma_addr
);
4001 rxq
->queue
[rxq
->write
] = rxb
;
4002 rxq
->write
= (rxq
->write
+ 1) & RX_QUEUE_MASK
;
4005 spin_unlock_irqrestore(&rxq
->lock
, flags
);
4006 /* If the pre-allocated buffer pool is dropping low, schedule to
4008 if (rxq
->free_count
<= RX_LOW_WATERMARK
)
4009 queue_work(priv
->workqueue
, &priv
->rx_replenish
);
4012 /* If we've added more space for the firmware to place data, tell it.
4013 * Increment device's write pointer in multiples of 8. */
4014 if ((write
!= (rxq
->write
& ~0x7))
4015 || (abs(rxq
->write
- rxq
->read
) > 7)) {
4016 spin_lock_irqsave(&rxq
->lock
, flags
);
4017 rxq
->need_update
= 1;
4018 spin_unlock_irqrestore(&rxq
->lock
, flags
);
4019 rc
= iwl3945_rx_queue_update_write_ptr(priv
, rxq
);
4028 * iwl3945_rx_replenish - Move all used packet from rx_used to rx_free
4030 * When moving to rx_free an SKB is allocated for the slot.
4032 * Also restock the Rx queue via iwl3945_rx_queue_restock.
4033 * This is called as a scheduled work item (except for during initialization)
4035 static void iwl3945_rx_allocate(struct iwl3945_priv
*priv
)
4037 struct iwl3945_rx_queue
*rxq
= &priv
->rxq
;
4038 struct list_head
*element
;
4039 struct iwl3945_rx_mem_buffer
*rxb
;
4040 unsigned long flags
;
4041 spin_lock_irqsave(&rxq
->lock
, flags
);
4042 while (!list_empty(&rxq
->rx_used
)) {
4043 element
= rxq
->rx_used
.next
;
4044 rxb
= list_entry(element
, struct iwl3945_rx_mem_buffer
, list
);
4046 /* Alloc a new receive buffer */
4048 alloc_skb(IWL_RX_BUF_SIZE
, __GFP_NOWARN
| GFP_ATOMIC
);
4050 if (net_ratelimit())
4051 printk(KERN_CRIT DRV_NAME
4052 ": Can not allocate SKB buffers\n");
4053 /* We don't reschedule replenish work here -- we will
4054 * call the restock method and if it still needs
4055 * more buffers it will schedule replenish */
4059 /* If radiotap head is required, reserve some headroom here.
4060 * The physical head count is a variable rx_stats->phy_count.
4061 * We reserve 4 bytes here. Plus these extra bytes, the
4062 * headroom of the physical head should be enough for the
4063 * radiotap head that iwl3945 supported. See iwl3945_rt.
4065 skb_reserve(rxb
->skb
, 4);
4067 priv
->alloc_rxb_skb
++;
4070 /* Get physical address of RB/SKB */
4072 pci_map_single(priv
->pci_dev
, rxb
->skb
->data
,
4073 IWL_RX_BUF_SIZE
, PCI_DMA_FROMDEVICE
);
4074 list_add_tail(&rxb
->list
, &rxq
->rx_free
);
4077 spin_unlock_irqrestore(&rxq
->lock
, flags
);
4081 * this should be called while priv->lock is locked
4083 static void __iwl3945_rx_replenish(void *data
)
4085 struct iwl3945_priv
*priv
= data
;
4087 iwl3945_rx_allocate(priv
);
4088 iwl3945_rx_queue_restock(priv
);
4092 void iwl3945_rx_replenish(void *data
)
4094 struct iwl3945_priv
*priv
= data
;
4095 unsigned long flags
;
4097 iwl3945_rx_allocate(priv
);
4099 spin_lock_irqsave(&priv
->lock
, flags
);
4100 iwl3945_rx_queue_restock(priv
);
4101 spin_unlock_irqrestore(&priv
->lock
, flags
);
4104 /* Assumes that the skb field of the buffers in 'pool' is kept accurate.
4105 * If an SKB has been detached, the POOL needs to have its SKB set to NULL
4106 * This free routine walks the list of POOL entries and if SKB is set to
4107 * non NULL it is unmapped and freed
4109 static void iwl3945_rx_queue_free(struct iwl3945_priv
*priv
, struct iwl3945_rx_queue
*rxq
)
4112 for (i
= 0; i
< RX_QUEUE_SIZE
+ RX_FREE_BUFFERS
; i
++) {
4113 if (rxq
->pool
[i
].skb
!= NULL
) {
4114 pci_unmap_single(priv
->pci_dev
,
4115 rxq
->pool
[i
].dma_addr
,
4116 IWL_RX_BUF_SIZE
, PCI_DMA_FROMDEVICE
);
4117 dev_kfree_skb(rxq
->pool
[i
].skb
);
4121 pci_free_consistent(priv
->pci_dev
, 4 * RX_QUEUE_SIZE
, rxq
->bd
,
4126 int iwl3945_rx_queue_alloc(struct iwl3945_priv
*priv
)
4128 struct iwl3945_rx_queue
*rxq
= &priv
->rxq
;
4129 struct pci_dev
*dev
= priv
->pci_dev
;
4132 spin_lock_init(&rxq
->lock
);
4133 INIT_LIST_HEAD(&rxq
->rx_free
);
4134 INIT_LIST_HEAD(&rxq
->rx_used
);
4136 /* Alloc the circular buffer of Read Buffer Descriptors (RBDs) */
4137 rxq
->bd
= pci_alloc_consistent(dev
, 4 * RX_QUEUE_SIZE
, &rxq
->dma_addr
);
4141 /* Fill the rx_used queue with _all_ of the Rx buffers */
4142 for (i
= 0; i
< RX_FREE_BUFFERS
+ RX_QUEUE_SIZE
; i
++)
4143 list_add_tail(&rxq
->pool
[i
].list
, &rxq
->rx_used
);
4145 /* Set us so that we have processed and used all buffers, but have
4146 * not restocked the Rx queue with fresh buffers */
4147 rxq
->read
= rxq
->write
= 0;
4148 rxq
->free_count
= 0;
4149 rxq
->need_update
= 0;
4153 void iwl3945_rx_queue_reset(struct iwl3945_priv
*priv
, struct iwl3945_rx_queue
*rxq
)
4155 unsigned long flags
;
4157 spin_lock_irqsave(&rxq
->lock
, flags
);
4158 INIT_LIST_HEAD(&rxq
->rx_free
);
4159 INIT_LIST_HEAD(&rxq
->rx_used
);
4160 /* Fill the rx_used queue with _all_ of the Rx buffers */
4161 for (i
= 0; i
< RX_FREE_BUFFERS
+ RX_QUEUE_SIZE
; i
++) {
4162 /* In the reset function, these buffers may have been allocated
4163 * to an SKB, so we need to unmap and free potential storage */
4164 if (rxq
->pool
[i
].skb
!= NULL
) {
4165 pci_unmap_single(priv
->pci_dev
,
4166 rxq
->pool
[i
].dma_addr
,
4167 IWL_RX_BUF_SIZE
, PCI_DMA_FROMDEVICE
);
4168 priv
->alloc_rxb_skb
--;
4169 dev_kfree_skb(rxq
->pool
[i
].skb
);
4170 rxq
->pool
[i
].skb
= NULL
;
4172 list_add_tail(&rxq
->pool
[i
].list
, &rxq
->rx_used
);
4175 /* Set us so that we have processed and used all buffers, but have
4176 * not restocked the Rx queue with fresh buffers */
4177 rxq
->read
= rxq
->write
= 0;
4178 rxq
->free_count
= 0;
4179 spin_unlock_irqrestore(&rxq
->lock
, flags
);
4182 /* Convert linear signal-to-noise ratio into dB */
4183 static u8 ratio2dB
[100] = {
4184 /* 0 1 2 3 4 5 6 7 8 9 */
4185 0, 0, 6, 10, 12, 14, 16, 17, 18, 19, /* 00 - 09 */
4186 20, 21, 22, 22, 23, 23, 24, 25, 26, 26, /* 10 - 19 */
4187 26, 26, 26, 27, 27, 28, 28, 28, 29, 29, /* 20 - 29 */
4188 29, 30, 30, 30, 31, 31, 31, 31, 32, 32, /* 30 - 39 */
4189 32, 32, 32, 33, 33, 33, 33, 33, 34, 34, /* 40 - 49 */
4190 34, 34, 34, 34, 35, 35, 35, 35, 35, 35, /* 50 - 59 */
4191 36, 36, 36, 36, 36, 36, 36, 37, 37, 37, /* 60 - 69 */
4192 37, 37, 37, 37, 37, 38, 38, 38, 38, 38, /* 70 - 79 */
4193 38, 38, 38, 38, 38, 39, 39, 39, 39, 39, /* 80 - 89 */
4194 39, 39, 39, 39, 39, 40, 40, 40, 40, 40 /* 90 - 99 */
4197 /* Calculates a relative dB value from a ratio of linear
4198 * (i.e. not dB) signal levels.
4199 * Conversion assumes that levels are voltages (20*log), not powers (10*log). */
4200 int iwl3945_calc_db_from_ratio(int sig_ratio
)
4202 /* 1000:1 or higher just report as 60 dB */
4203 if (sig_ratio
>= 1000)
4206 /* 100:1 or higher, divide by 10 and use table,
4207 * add 20 dB to make up for divide by 10 */
4208 if (sig_ratio
>= 100)
4209 return (20 + (int)ratio2dB
[sig_ratio
/10]);
4211 /* We shouldn't see this */
4215 /* Use table for ratios 1:1 - 99:1 */
4216 return (int)ratio2dB
[sig_ratio
];
4219 #define PERFECT_RSSI (-20) /* dBm */
4220 #define WORST_RSSI (-95) /* dBm */
4221 #define RSSI_RANGE (PERFECT_RSSI - WORST_RSSI)
4223 /* Calculate an indication of rx signal quality (a percentage, not dBm!).
4224 * See http://www.ces.clemson.edu/linux/signal_quality.shtml for info
4225 * about formulas used below. */
4226 int iwl3945_calc_sig_qual(int rssi_dbm
, int noise_dbm
)
4229 int degradation
= PERFECT_RSSI
- rssi_dbm
;
4231 /* If we get a noise measurement, use signal-to-noise ratio (SNR)
4232 * as indicator; formula is (signal dbm - noise dbm).
4233 * SNR at or above 40 is a great signal (100%).
4234 * Below that, scale to fit SNR of 0 - 40 dB within 0 - 100% indicator.
4235 * Weakest usable signal is usually 10 - 15 dB SNR. */
4237 if (rssi_dbm
- noise_dbm
>= 40)
4239 else if (rssi_dbm
< noise_dbm
)
4241 sig_qual
= ((rssi_dbm
- noise_dbm
) * 5) / 2;
4243 /* Else use just the signal level.
4244 * This formula is a least squares fit of data points collected and
4245 * compared with a reference system that had a percentage (%) display
4246 * for signal quality. */
4248 sig_qual
= (100 * (RSSI_RANGE
* RSSI_RANGE
) - degradation
*
4249 (15 * RSSI_RANGE
+ 62 * degradation
)) /
4250 (RSSI_RANGE
* RSSI_RANGE
);
4254 else if (sig_qual
< 1)
4261 * iwl3945_rx_handle - Main entry function for receiving responses from uCode
4263 * Uses the priv->rx_handlers callback function array to invoke
4264 * the appropriate handlers, including command responses,
4265 * frame-received notifications, and other notifications.
4267 static void iwl3945_rx_handle(struct iwl3945_priv
*priv
)
4269 struct iwl3945_rx_mem_buffer
*rxb
;
4270 struct iwl3945_rx_packet
*pkt
;
4271 struct iwl3945_rx_queue
*rxq
= &priv
->rxq
;
4274 unsigned long flags
;
4278 /* uCode's read index (stored in shared DRAM) indicates the last Rx
4279 * buffer that the driver may process (last buffer filled by ucode). */
4280 r
= iwl3945_hw_get_rx_read(priv
);
4283 if (iwl3945_rx_queue_space(rxq
) > (RX_QUEUE_SIZE
/ 2))
4285 /* Rx interrupt, but nothing sent from uCode */
4287 IWL_DEBUG(IWL_DL_RX
| IWL_DL_ISR
, "r = %d, i = %d\n", r
, i
);
4290 rxb
= rxq
->queue
[i
];
4292 /* If an RXB doesn't have a Rx queue slot associated with it,
4293 * then a bug has been introduced in the queue refilling
4294 * routines -- catch it here */
4295 BUG_ON(rxb
== NULL
);
4297 rxq
->queue
[i
] = NULL
;
4299 pci_dma_sync_single_for_cpu(priv
->pci_dev
, rxb
->dma_addr
,
4301 PCI_DMA_FROMDEVICE
);
4302 pkt
= (struct iwl3945_rx_packet
*)rxb
->skb
->data
;
4304 /* Reclaim a command buffer only if this packet is a response
4305 * to a (driver-originated) command.
4306 * If the packet (e.g. Rx frame) originated from uCode,
4307 * there is no command buffer to reclaim.
4308 * Ucode should set SEQ_RX_FRAME bit if ucode-originated,
4309 * but apparently a few don't get set; catch them here. */
4310 reclaim
= !(pkt
->hdr
.sequence
& SEQ_RX_FRAME
) &&
4311 (pkt
->hdr
.cmd
!= STATISTICS_NOTIFICATION
) &&
4312 (pkt
->hdr
.cmd
!= REPLY_TX
);
4314 /* Based on type of command response or notification,
4315 * handle those that need handling via function in
4316 * rx_handlers table. See iwl3945_setup_rx_handlers() */
4317 if (priv
->rx_handlers
[pkt
->hdr
.cmd
]) {
4318 IWL_DEBUG(IWL_DL_HOST_COMMAND
| IWL_DL_RX
| IWL_DL_ISR
,
4319 "r = %d, i = %d, %s, 0x%02x\n", r
, i
,
4320 get_cmd_string(pkt
->hdr
.cmd
), pkt
->hdr
.cmd
);
4321 priv
->rx_handlers
[pkt
->hdr
.cmd
] (priv
, rxb
);
4323 /* No handling needed */
4324 IWL_DEBUG(IWL_DL_HOST_COMMAND
| IWL_DL_RX
| IWL_DL_ISR
,
4325 "r %d i %d No handler needed for %s, 0x%02x\n",
4326 r
, i
, get_cmd_string(pkt
->hdr
.cmd
),
4331 /* Invoke any callbacks, transfer the skb to caller, and
4332 * fire off the (possibly) blocking iwl3945_send_cmd()
4333 * as we reclaim the driver command queue */
4334 if (rxb
&& rxb
->skb
)
4335 iwl3945_tx_cmd_complete(priv
, rxb
);
4337 IWL_WARNING("Claim null rxb?\n");
4340 /* For now we just don't re-use anything. We can tweak this
4341 * later to try and re-use notification packets and SKBs that
4342 * fail to Rx correctly */
4343 if (rxb
->skb
!= NULL
) {
4344 priv
->alloc_rxb_skb
--;
4345 dev_kfree_skb_any(rxb
->skb
);
4349 pci_unmap_single(priv
->pci_dev
, rxb
->dma_addr
,
4350 IWL_RX_BUF_SIZE
, PCI_DMA_FROMDEVICE
);
4351 spin_lock_irqsave(&rxq
->lock
, flags
);
4352 list_add_tail(&rxb
->list
, &priv
->rxq
.rx_used
);
4353 spin_unlock_irqrestore(&rxq
->lock
, flags
);
4354 i
= (i
+ 1) & RX_QUEUE_MASK
;
4355 /* If there are a lot of unused frames,
4356 * restock the Rx queue so ucode won't assert. */
4361 __iwl3945_rx_replenish(priv
);
4367 /* Backtrack one entry */
4369 iwl3945_rx_queue_restock(priv
);
4373 * iwl3945_tx_queue_update_write_ptr - Send new write index to hardware
4375 static int iwl3945_tx_queue_update_write_ptr(struct iwl3945_priv
*priv
,
4376 struct iwl3945_tx_queue
*txq
)
4380 int txq_id
= txq
->q
.id
;
4382 if (txq
->need_update
== 0)
4385 /* if we're trying to save power */
4386 if (test_bit(STATUS_POWER_PMI
, &priv
->status
)) {
4387 /* wake up nic if it's powered down ...
4388 * uCode will wake up, and interrupt us again, so next
4389 * time we'll skip this part. */
4390 reg
= iwl3945_read32(priv
, CSR_UCODE_DRV_GP1
);
4392 if (reg
& CSR_UCODE_DRV_GP1_BIT_MAC_SLEEP
) {
4393 IWL_DEBUG_INFO("Requesting wakeup, GP1 = 0x%x\n", reg
);
4394 iwl3945_set_bit(priv
, CSR_GP_CNTRL
,
4395 CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ
);
4399 /* restore this queue's parameters in nic hardware. */
4400 rc
= iwl3945_grab_nic_access(priv
);
4403 iwl3945_write_direct32(priv
, HBUS_TARG_WRPTR
,
4404 txq
->q
.write_ptr
| (txq_id
<< 8));
4405 iwl3945_release_nic_access(priv
);
4407 /* else not in power-save mode, uCode will never sleep when we're
4408 * trying to tx (during RFKILL, we're not trying to tx). */
4410 iwl3945_write32(priv
, HBUS_TARG_WRPTR
,
4411 txq
->q
.write_ptr
| (txq_id
<< 8));
4413 txq
->need_update
= 0;
4418 #ifdef CONFIG_IWL3945_DEBUG
4419 static void iwl3945_print_rx_config_cmd(struct iwl3945_rxon_cmd
*rxon
)
4421 DECLARE_MAC_BUF(mac
);
4423 IWL_DEBUG_RADIO("RX CONFIG:\n");
4424 iwl3945_print_hex_dump(IWL_DL_RADIO
, (u8
*) rxon
, sizeof(*rxon
));
4425 IWL_DEBUG_RADIO("u16 channel: 0x%x\n", le16_to_cpu(rxon
->channel
));
4426 IWL_DEBUG_RADIO("u32 flags: 0x%08X\n", le32_to_cpu(rxon
->flags
));
4427 IWL_DEBUG_RADIO("u32 filter_flags: 0x%08x\n",
4428 le32_to_cpu(rxon
->filter_flags
));
4429 IWL_DEBUG_RADIO("u8 dev_type: 0x%x\n", rxon
->dev_type
);
4430 IWL_DEBUG_RADIO("u8 ofdm_basic_rates: 0x%02x\n",
4431 rxon
->ofdm_basic_rates
);
4432 IWL_DEBUG_RADIO("u8 cck_basic_rates: 0x%02x\n", rxon
->cck_basic_rates
);
4433 IWL_DEBUG_RADIO("u8[6] node_addr: %s\n",
4434 print_mac(mac
, rxon
->node_addr
));
4435 IWL_DEBUG_RADIO("u8[6] bssid_addr: %s\n",
4436 print_mac(mac
, rxon
->bssid_addr
));
4437 IWL_DEBUG_RADIO("u16 assoc_id: 0x%x\n", le16_to_cpu(rxon
->assoc_id
));
4441 static void iwl3945_enable_interrupts(struct iwl3945_priv
*priv
)
4443 IWL_DEBUG_ISR("Enabling interrupts\n");
4444 set_bit(STATUS_INT_ENABLED
, &priv
->status
);
4445 iwl3945_write32(priv
, CSR_INT_MASK
, CSR_INI_SET_MASK
);
4448 static inline void iwl3945_disable_interrupts(struct iwl3945_priv
*priv
)
4450 clear_bit(STATUS_INT_ENABLED
, &priv
->status
);
4452 /* disable interrupts from uCode/NIC to host */
4453 iwl3945_write32(priv
, CSR_INT_MASK
, 0x00000000);
4455 /* acknowledge/clear/reset any interrupts still pending
4456 * from uCode or flow handler (Rx/Tx DMA) */
4457 iwl3945_write32(priv
, CSR_INT
, 0xffffffff);
4458 iwl3945_write32(priv
, CSR_FH_INT_STATUS
, 0xffffffff);
4459 IWL_DEBUG_ISR("Disabled interrupts\n");
4462 static const char *desc_lookup(int i
)
4470 return "BAD_CHECKSUM";
4472 return "NMI_INTERRUPT";
4476 return "FATAL_ERROR";
4482 #define ERROR_START_OFFSET (1 * sizeof(u32))
4483 #define ERROR_ELEM_SIZE (7 * sizeof(u32))
4485 static void iwl3945_dump_nic_error_log(struct iwl3945_priv
*priv
)
4488 u32 desc
, time
, count
, base
, data1
;
4489 u32 blink1
, blink2
, ilink1
, ilink2
;
4492 base
= le32_to_cpu(priv
->card_alive
.error_event_table_ptr
);
4494 if (!iwl3945_hw_valid_rtc_data_addr(base
)) {
4495 IWL_ERROR("Not valid error log pointer 0x%08X\n", base
);
4499 rc
= iwl3945_grab_nic_access(priv
);
4501 IWL_WARNING("Can not read from adapter at this time.\n");
4505 count
= iwl3945_read_targ_mem(priv
, base
);
4507 if (ERROR_START_OFFSET
<= count
* ERROR_ELEM_SIZE
) {
4508 IWL_ERROR("Start IWL Error Log Dump:\n");
4509 IWL_ERROR("Status: 0x%08lX, Config: %08X count: %d\n",
4510 priv
->status
, priv
->config
, count
);
4513 IWL_ERROR("Desc Time asrtPC blink2 "
4514 "ilink1 nmiPC Line\n");
4515 for (i
= ERROR_START_OFFSET
;
4516 i
< (count
* ERROR_ELEM_SIZE
) + ERROR_START_OFFSET
;
4517 i
+= ERROR_ELEM_SIZE
) {
4518 desc
= iwl3945_read_targ_mem(priv
, base
+ i
);
4520 iwl3945_read_targ_mem(priv
, base
+ i
+ 1 * sizeof(u32
));
4522 iwl3945_read_targ_mem(priv
, base
+ i
+ 2 * sizeof(u32
));
4524 iwl3945_read_targ_mem(priv
, base
+ i
+ 3 * sizeof(u32
));
4526 iwl3945_read_targ_mem(priv
, base
+ i
+ 4 * sizeof(u32
));
4528 iwl3945_read_targ_mem(priv
, base
+ i
+ 5 * sizeof(u32
));
4530 iwl3945_read_targ_mem(priv
, base
+ i
+ 6 * sizeof(u32
));
4533 ("%-13s (#%d) %010u 0x%05X 0x%05X 0x%05X 0x%05X %u\n\n",
4534 desc_lookup(desc
), desc
, time
, blink1
, blink2
,
4535 ilink1
, ilink2
, data1
);
4538 iwl3945_release_nic_access(priv
);
4542 #define EVENT_START_OFFSET (6 * sizeof(u32))
4545 * iwl3945_print_event_log - Dump error event log to syslog
4547 * NOTE: Must be called with iwl3945_grab_nic_access() already obtained!
4549 static void iwl3945_print_event_log(struct iwl3945_priv
*priv
, u32 start_idx
,
4550 u32 num_events
, u32 mode
)
4553 u32 base
; /* SRAM byte address of event log header */
4554 u32 event_size
; /* 2 u32s, or 3 u32s if timestamp recorded */
4555 u32 ptr
; /* SRAM byte address of log data */
4556 u32 ev
, time
, data
; /* event log data */
4558 if (num_events
== 0)
4561 base
= le32_to_cpu(priv
->card_alive
.log_event_table_ptr
);
4564 event_size
= 2 * sizeof(u32
);
4566 event_size
= 3 * sizeof(u32
);
4568 ptr
= base
+ EVENT_START_OFFSET
+ (start_idx
* event_size
);
4570 /* "time" is actually "data" for mode 0 (no timestamp).
4571 * place event id # at far right for easier visual parsing. */
4572 for (i
= 0; i
< num_events
; i
++) {
4573 ev
= iwl3945_read_targ_mem(priv
, ptr
);
4575 time
= iwl3945_read_targ_mem(priv
, ptr
);
4578 IWL_ERROR("0x%08x\t%04u\n", time
, ev
); /* data, ev */
4580 data
= iwl3945_read_targ_mem(priv
, ptr
);
4582 IWL_ERROR("%010u\t0x%08x\t%04u\n", time
, data
, ev
);
4587 static void iwl3945_dump_nic_event_log(struct iwl3945_priv
*priv
)
4590 u32 base
; /* SRAM byte address of event log header */
4591 u32 capacity
; /* event log capacity in # entries */
4592 u32 mode
; /* 0 - no timestamp, 1 - timestamp recorded */
4593 u32 num_wraps
; /* # times uCode wrapped to top of log */
4594 u32 next_entry
; /* index of next entry to be written by uCode */
4595 u32 size
; /* # entries that we'll print */
4597 base
= le32_to_cpu(priv
->card_alive
.log_event_table_ptr
);
4598 if (!iwl3945_hw_valid_rtc_data_addr(base
)) {
4599 IWL_ERROR("Invalid event log pointer 0x%08X\n", base
);
4603 rc
= iwl3945_grab_nic_access(priv
);
4605 IWL_WARNING("Can not read from adapter at this time.\n");
4609 /* event log header */
4610 capacity
= iwl3945_read_targ_mem(priv
, base
);
4611 mode
= iwl3945_read_targ_mem(priv
, base
+ (1 * sizeof(u32
)));
4612 num_wraps
= iwl3945_read_targ_mem(priv
, base
+ (2 * sizeof(u32
)));
4613 next_entry
= iwl3945_read_targ_mem(priv
, base
+ (3 * sizeof(u32
)));
4615 size
= num_wraps
? capacity
: next_entry
;
4617 /* bail out if nothing in log */
4619 IWL_ERROR("Start IWL Event Log Dump: nothing in log\n");
4620 iwl3945_release_nic_access(priv
);
4624 IWL_ERROR("Start IWL Event Log Dump: display count %d, wraps %d\n",
4627 /* if uCode has wrapped back to top of log, start at the oldest entry,
4628 * i.e the next one that uCode would fill. */
4630 iwl3945_print_event_log(priv
, next_entry
,
4631 capacity
- next_entry
, mode
);
4633 /* (then/else) start at top of log */
4634 iwl3945_print_event_log(priv
, 0, next_entry
, mode
);
4636 iwl3945_release_nic_access(priv
);
4640 * iwl3945_irq_handle_error - called for HW or SW error interrupt from card
4642 static void iwl3945_irq_handle_error(struct iwl3945_priv
*priv
)
4644 /* Set the FW error flag -- cleared on iwl3945_down */
4645 set_bit(STATUS_FW_ERROR
, &priv
->status
);
4647 /* Cancel currently queued command. */
4648 clear_bit(STATUS_HCMD_ACTIVE
, &priv
->status
);
4650 #ifdef CONFIG_IWL3945_DEBUG
4651 if (iwl3945_debug_level
& IWL_DL_FW_ERRORS
) {
4652 iwl3945_dump_nic_error_log(priv
);
4653 iwl3945_dump_nic_event_log(priv
);
4654 iwl3945_print_rx_config_cmd(&priv
->staging_rxon
);
4658 wake_up_interruptible(&priv
->wait_command_queue
);
4660 /* Keep the restart process from trying to send host
4661 * commands by clearing the INIT status bit */
4662 clear_bit(STATUS_READY
, &priv
->status
);
4664 if (!test_bit(STATUS_EXIT_PENDING
, &priv
->status
)) {
4665 IWL_DEBUG(IWL_DL_INFO
| IWL_DL_FW_ERRORS
,
4666 "Restarting adapter due to uCode error.\n");
4668 if (iwl3945_is_associated(priv
)) {
4669 memcpy(&priv
->recovery_rxon
, &priv
->active_rxon
,
4670 sizeof(priv
->recovery_rxon
));
4671 priv
->error_recovering
= 1;
4673 queue_work(priv
->workqueue
, &priv
->restart
);
4677 static void iwl3945_error_recovery(struct iwl3945_priv
*priv
)
4679 unsigned long flags
;
4681 memcpy(&priv
->staging_rxon
, &priv
->recovery_rxon
,
4682 sizeof(priv
->staging_rxon
));
4683 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
4684 iwl3945_commit_rxon(priv
);
4686 iwl3945_add_station(priv
, priv
->bssid
, 1, 0);
4688 spin_lock_irqsave(&priv
->lock
, flags
);
4689 priv
->assoc_id
= le16_to_cpu(priv
->staging_rxon
.assoc_id
);
4690 priv
->error_recovering
= 0;
4691 spin_unlock_irqrestore(&priv
->lock
, flags
);
4694 static void iwl3945_irq_tasklet(struct iwl3945_priv
*priv
)
4696 u32 inta
, handled
= 0;
4698 unsigned long flags
;
4699 #ifdef CONFIG_IWL3945_DEBUG
4703 spin_lock_irqsave(&priv
->lock
, flags
);
4705 /* Ack/clear/reset pending uCode interrupts.
4706 * Note: Some bits in CSR_INT are "OR" of bits in CSR_FH_INT_STATUS,
4707 * and will clear only when CSR_FH_INT_STATUS gets cleared. */
4708 inta
= iwl3945_read32(priv
, CSR_INT
);
4709 iwl3945_write32(priv
, CSR_INT
, inta
);
4711 /* Ack/clear/reset pending flow-handler (DMA) interrupts.
4712 * Any new interrupts that happen after this, either while we're
4713 * in this tasklet, or later, will show up in next ISR/tasklet. */
4714 inta_fh
= iwl3945_read32(priv
, CSR_FH_INT_STATUS
);
4715 iwl3945_write32(priv
, CSR_FH_INT_STATUS
, inta_fh
);
4717 #ifdef CONFIG_IWL3945_DEBUG
4718 if (iwl3945_debug_level
& IWL_DL_ISR
) {
4719 /* just for debug */
4720 inta_mask
= iwl3945_read32(priv
, CSR_INT_MASK
);
4721 IWL_DEBUG_ISR("inta 0x%08x, enabled 0x%08x, fh 0x%08x\n",
4722 inta
, inta_mask
, inta_fh
);
4726 /* Since CSR_INT and CSR_FH_INT_STATUS reads and clears are not
4727 * atomic, make sure that inta covers all the interrupts that
4728 * we've discovered, even if FH interrupt came in just after
4729 * reading CSR_INT. */
4730 if (inta_fh
& CSR_FH_INT_RX_MASK
)
4731 inta
|= CSR_INT_BIT_FH_RX
;
4732 if (inta_fh
& CSR_FH_INT_TX_MASK
)
4733 inta
|= CSR_INT_BIT_FH_TX
;
4735 /* Now service all interrupt bits discovered above. */
4736 if (inta
& CSR_INT_BIT_HW_ERR
) {
4737 IWL_ERROR("Microcode HW error detected. Restarting.\n");
4739 /* Tell the device to stop sending interrupts */
4740 iwl3945_disable_interrupts(priv
);
4742 iwl3945_irq_handle_error(priv
);
4744 handled
|= CSR_INT_BIT_HW_ERR
;
4746 spin_unlock_irqrestore(&priv
->lock
, flags
);
4751 #ifdef CONFIG_IWL3945_DEBUG
4752 if (iwl3945_debug_level
& (IWL_DL_ISR
)) {
4753 /* NIC fires this, but we don't use it, redundant with WAKEUP */
4754 if (inta
& CSR_INT_BIT_SCD
)
4755 IWL_DEBUG_ISR("Scheduler finished to transmit "
4756 "the frame/frames.\n");
4758 /* Alive notification via Rx interrupt will do the real work */
4759 if (inta
& CSR_INT_BIT_ALIVE
)
4760 IWL_DEBUG_ISR("Alive interrupt\n");
4763 /* Safely ignore these bits for debug checks below */
4764 inta
&= ~(CSR_INT_BIT_SCD
| CSR_INT_BIT_ALIVE
);
4766 /* HW RF KILL switch toggled (4965 only) */
4767 if (inta
& CSR_INT_BIT_RF_KILL
) {
4769 if (!(iwl3945_read32(priv
, CSR_GP_CNTRL
) &
4770 CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW
))
4773 IWL_DEBUG(IWL_DL_INFO
| IWL_DL_RF_KILL
| IWL_DL_ISR
,
4774 "RF_KILL bit toggled to %s.\n",
4775 hw_rf_kill
? "disable radio":"enable radio");
4777 /* Queue restart only if RF_KILL switch was set to "kill"
4778 * when we loaded driver, and is now set to "enable".
4779 * After we're Alive, RF_KILL gets handled by
4780 * iwl_rx_card_state_notif() */
4781 if (!hw_rf_kill
&& !test_bit(STATUS_ALIVE
, &priv
->status
)) {
4782 clear_bit(STATUS_RF_KILL_HW
, &priv
->status
);
4783 queue_work(priv
->workqueue
, &priv
->restart
);
4786 handled
|= CSR_INT_BIT_RF_KILL
;
4789 /* Chip got too hot and stopped itself (4965 only) */
4790 if (inta
& CSR_INT_BIT_CT_KILL
) {
4791 IWL_ERROR("Microcode CT kill error detected.\n");
4792 handled
|= CSR_INT_BIT_CT_KILL
;
4795 /* Error detected by uCode */
4796 if (inta
& CSR_INT_BIT_SW_ERR
) {
4797 IWL_ERROR("Microcode SW error detected. Restarting 0x%X.\n",
4799 iwl3945_irq_handle_error(priv
);
4800 handled
|= CSR_INT_BIT_SW_ERR
;
4803 /* uCode wakes up after power-down sleep */
4804 if (inta
& CSR_INT_BIT_WAKEUP
) {
4805 IWL_DEBUG_ISR("Wakeup interrupt\n");
4806 iwl3945_rx_queue_update_write_ptr(priv
, &priv
->rxq
);
4807 iwl3945_tx_queue_update_write_ptr(priv
, &priv
->txq
[0]);
4808 iwl3945_tx_queue_update_write_ptr(priv
, &priv
->txq
[1]);
4809 iwl3945_tx_queue_update_write_ptr(priv
, &priv
->txq
[2]);
4810 iwl3945_tx_queue_update_write_ptr(priv
, &priv
->txq
[3]);
4811 iwl3945_tx_queue_update_write_ptr(priv
, &priv
->txq
[4]);
4812 iwl3945_tx_queue_update_write_ptr(priv
, &priv
->txq
[5]);
4814 handled
|= CSR_INT_BIT_WAKEUP
;
4817 /* All uCode command responses, including Tx command responses,
4818 * Rx "responses" (frame-received notification), and other
4819 * notifications from uCode come through here*/
4820 if (inta
& (CSR_INT_BIT_FH_RX
| CSR_INT_BIT_SW_RX
)) {
4821 iwl3945_rx_handle(priv
);
4822 handled
|= (CSR_INT_BIT_FH_RX
| CSR_INT_BIT_SW_RX
);
4825 if (inta
& CSR_INT_BIT_FH_TX
) {
4826 IWL_DEBUG_ISR("Tx interrupt\n");
4828 iwl3945_write32(priv
, CSR_FH_INT_STATUS
, (1 << 6));
4829 if (!iwl3945_grab_nic_access(priv
)) {
4830 iwl3945_write_direct32(priv
,
4832 (ALM_FH_SRVC_CHNL
), 0x0);
4833 iwl3945_release_nic_access(priv
);
4835 handled
|= CSR_INT_BIT_FH_TX
;
4838 if (inta
& ~handled
)
4839 IWL_ERROR("Unhandled INTA bits 0x%08x\n", inta
& ~handled
);
4841 if (inta
& ~CSR_INI_SET_MASK
) {
4842 IWL_WARNING("Disabled INTA bits 0x%08x were pending\n",
4843 inta
& ~CSR_INI_SET_MASK
);
4844 IWL_WARNING(" with FH_INT = 0x%08x\n", inta_fh
);
4847 /* Re-enable all interrupts */
4848 iwl3945_enable_interrupts(priv
);
4850 #ifdef CONFIG_IWL3945_DEBUG
4851 if (iwl3945_debug_level
& (IWL_DL_ISR
)) {
4852 inta
= iwl3945_read32(priv
, CSR_INT
);
4853 inta_mask
= iwl3945_read32(priv
, CSR_INT_MASK
);
4854 inta_fh
= iwl3945_read32(priv
, CSR_FH_INT_STATUS
);
4855 IWL_DEBUG_ISR("End inta 0x%08x, enabled 0x%08x, fh 0x%08x, "
4856 "flags 0x%08lx\n", inta
, inta_mask
, inta_fh
, flags
);
4859 spin_unlock_irqrestore(&priv
->lock
, flags
);
4862 static irqreturn_t
iwl3945_isr(int irq
, void *data
)
4864 struct iwl3945_priv
*priv
= data
;
4865 u32 inta
, inta_mask
;
4870 spin_lock(&priv
->lock
);
4872 /* Disable (but don't clear!) interrupts here to avoid
4873 * back-to-back ISRs and sporadic interrupts from our NIC.
4874 * If we have something to service, the tasklet will re-enable ints.
4875 * If we *don't* have something, we'll re-enable before leaving here. */
4876 inta_mask
= iwl3945_read32(priv
, CSR_INT_MASK
); /* just for debug */
4877 iwl3945_write32(priv
, CSR_INT_MASK
, 0x00000000);
4879 /* Discover which interrupts are active/pending */
4880 inta
= iwl3945_read32(priv
, CSR_INT
);
4881 inta_fh
= iwl3945_read32(priv
, CSR_FH_INT_STATUS
);
4883 /* Ignore interrupt if there's nothing in NIC to service.
4884 * This may be due to IRQ shared with another device,
4885 * or due to sporadic interrupts thrown from our NIC. */
4886 if (!inta
&& !inta_fh
) {
4887 IWL_DEBUG_ISR("Ignore interrupt, inta == 0, inta_fh == 0\n");
4891 if ((inta
== 0xFFFFFFFF) || ((inta
& 0xFFFFFFF0) == 0xa5a5a5a0)) {
4892 /* Hardware disappeared */
4893 IWL_WARNING("HARDWARE GONE?? INTA == 0x%080x\n", inta
);
4897 IWL_DEBUG_ISR("ISR inta 0x%08x, enabled 0x%08x, fh 0x%08x\n",
4898 inta
, inta_mask
, inta_fh
);
4900 inta
&= ~CSR_INT_BIT_SCD
;
4902 /* iwl3945_irq_tasklet() will service interrupts and re-enable them */
4903 if (likely(inta
|| inta_fh
))
4904 tasklet_schedule(&priv
->irq_tasklet
);
4906 spin_unlock(&priv
->lock
);
4911 /* re-enable interrupts here since we don't have anything to service. */
4912 iwl3945_enable_interrupts(priv
);
4913 spin_unlock(&priv
->lock
);
4917 /************************** EEPROM BANDS ****************************
4919 * The iwl3945_eeprom_band definitions below provide the mapping from the
4920 * EEPROM contents to the specific channel number supported for each
4923 * For example, iwl3945_priv->eeprom.band_3_channels[4] from the band_3
4924 * definition below maps to physical channel 42 in the 5.2GHz spectrum.
4925 * The specific geography and calibration information for that channel
4926 * is contained in the eeprom map itself.
4928 * During init, we copy the eeprom information and channel map
4929 * information into priv->channel_info_24/52 and priv->channel_map_24/52
4931 * channel_map_24/52 provides the index in the channel_info array for a
4932 * given channel. We have to have two separate maps as there is channel
4933 * overlap with the 2.4GHz and 5.2GHz spectrum as seen in band_1 and
4936 * A value of 0xff stored in the channel_map indicates that the channel
4937 * is not supported by the hardware at all.
4939 * A value of 0xfe in the channel_map indicates that the channel is not
4940 * valid for Tx with the current hardware. This means that
4941 * while the system can tune and receive on a given channel, it may not
4942 * be able to associate or transmit any frames on that
4943 * channel. There is no corresponding channel information for that
4946 *********************************************************************/
4949 static const u8 iwl3945_eeprom_band_1
[14] = {
4950 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14
4954 static const u8 iwl3945_eeprom_band_2
[] = { /* 4915-5080MHz */
4955 183, 184, 185, 187, 188, 189, 192, 196, 7, 8, 11, 12, 16
4958 static const u8 iwl3945_eeprom_band_3
[] = { /* 5170-5320MHz */
4959 34, 36, 38, 40, 42, 44, 46, 48, 52, 56, 60, 64
4962 static const u8 iwl3945_eeprom_band_4
[] = { /* 5500-5700MHz */
4963 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140
4966 static const u8 iwl3945_eeprom_band_5
[] = { /* 5725-5825MHz */
4967 145, 149, 153, 157, 161, 165
4970 static void iwl3945_init_band_reference(const struct iwl3945_priv
*priv
, int band
,
4971 int *eeprom_ch_count
,
4972 const struct iwl3945_eeprom_channel
4974 const u8
**eeprom_ch_index
)
4977 case 1: /* 2.4GHz band */
4978 *eeprom_ch_count
= ARRAY_SIZE(iwl3945_eeprom_band_1
);
4979 *eeprom_ch_info
= priv
->eeprom
.band_1_channels
;
4980 *eeprom_ch_index
= iwl3945_eeprom_band_1
;
4982 case 2: /* 4.9GHz band */
4983 *eeprom_ch_count
= ARRAY_SIZE(iwl3945_eeprom_band_2
);
4984 *eeprom_ch_info
= priv
->eeprom
.band_2_channels
;
4985 *eeprom_ch_index
= iwl3945_eeprom_band_2
;
4987 case 3: /* 5.2GHz band */
4988 *eeprom_ch_count
= ARRAY_SIZE(iwl3945_eeprom_band_3
);
4989 *eeprom_ch_info
= priv
->eeprom
.band_3_channels
;
4990 *eeprom_ch_index
= iwl3945_eeprom_band_3
;
4992 case 4: /* 5.5GHz band */
4993 *eeprom_ch_count
= ARRAY_SIZE(iwl3945_eeprom_band_4
);
4994 *eeprom_ch_info
= priv
->eeprom
.band_4_channels
;
4995 *eeprom_ch_index
= iwl3945_eeprom_band_4
;
4997 case 5: /* 5.7GHz band */
4998 *eeprom_ch_count
= ARRAY_SIZE(iwl3945_eeprom_band_5
);
4999 *eeprom_ch_info
= priv
->eeprom
.band_5_channels
;
5000 *eeprom_ch_index
= iwl3945_eeprom_band_5
;
5009 * iwl3945_get_channel_info - Find driver's private channel info
5011 * Based on band and channel number.
5013 const struct iwl3945_channel_info
*iwl3945_get_channel_info(const struct iwl3945_priv
*priv
,
5014 enum ieee80211_band band
, u16 channel
)
5019 case IEEE80211_BAND_5GHZ
:
5020 for (i
= 14; i
< priv
->channel_count
; i
++) {
5021 if (priv
->channel_info
[i
].channel
== channel
)
5022 return &priv
->channel_info
[i
];
5026 case IEEE80211_BAND_2GHZ
:
5027 if (channel
>= 1 && channel
<= 14)
5028 return &priv
->channel_info
[channel
- 1];
5030 case IEEE80211_NUM_BANDS
:
5037 #define CHECK_AND_PRINT(x) ((eeprom_ch_info[ch].flags & EEPROM_CHANNEL_##x) \
5041 * iwl3945_init_channel_map - Set up driver's info for all possible channels
5043 static int iwl3945_init_channel_map(struct iwl3945_priv
*priv
)
5045 int eeprom_ch_count
= 0;
5046 const u8
*eeprom_ch_index
= NULL
;
5047 const struct iwl3945_eeprom_channel
*eeprom_ch_info
= NULL
;
5049 struct iwl3945_channel_info
*ch_info
;
5051 if (priv
->channel_count
) {
5052 IWL_DEBUG_INFO("Channel map already initialized.\n");
5056 if (priv
->eeprom
.version
< 0x2f) {
5057 IWL_WARNING("Unsupported EEPROM version: 0x%04X\n",
5058 priv
->eeprom
.version
);
5062 IWL_DEBUG_INFO("Initializing regulatory info from EEPROM\n");
5064 priv
->channel_count
=
5065 ARRAY_SIZE(iwl3945_eeprom_band_1
) +
5066 ARRAY_SIZE(iwl3945_eeprom_band_2
) +
5067 ARRAY_SIZE(iwl3945_eeprom_band_3
) +
5068 ARRAY_SIZE(iwl3945_eeprom_band_4
) +
5069 ARRAY_SIZE(iwl3945_eeprom_band_5
);
5071 IWL_DEBUG_INFO("Parsing data for %d channels.\n", priv
->channel_count
);
5073 priv
->channel_info
= kzalloc(sizeof(struct iwl3945_channel_info
) *
5074 priv
->channel_count
, GFP_KERNEL
);
5075 if (!priv
->channel_info
) {
5076 IWL_ERROR("Could not allocate channel_info\n");
5077 priv
->channel_count
= 0;
5081 ch_info
= priv
->channel_info
;
5083 /* Loop through the 5 EEPROM bands adding them in order to the
5084 * channel map we maintain (that contains additional information than
5085 * what just in the EEPROM) */
5086 for (band
= 1; band
<= 5; band
++) {
5088 iwl3945_init_band_reference(priv
, band
, &eeprom_ch_count
,
5089 &eeprom_ch_info
, &eeprom_ch_index
);
5091 /* Loop through each band adding each of the channels */
5092 for (ch
= 0; ch
< eeprom_ch_count
; ch
++) {
5093 ch_info
->channel
= eeprom_ch_index
[ch
];
5094 ch_info
->band
= (band
== 1) ? IEEE80211_BAND_2GHZ
:
5095 IEEE80211_BAND_5GHZ
;
5097 /* permanently store EEPROM's channel regulatory flags
5098 * and max power in channel info database. */
5099 ch_info
->eeprom
= eeprom_ch_info
[ch
];
5101 /* Copy the run-time flags so they are there even on
5102 * invalid channels */
5103 ch_info
->flags
= eeprom_ch_info
[ch
].flags
;
5105 if (!(is_channel_valid(ch_info
))) {
5106 IWL_DEBUG_INFO("Ch. %d Flags %x [%sGHz] - "
5110 is_channel_a_band(ch_info
) ?
5116 /* Initialize regulatory-based run-time data */
5117 ch_info
->max_power_avg
= ch_info
->curr_txpow
=
5118 eeprom_ch_info
[ch
].max_power_avg
;
5119 ch_info
->scan_power
= eeprom_ch_info
[ch
].max_power_avg
;
5120 ch_info
->min_power
= 0;
5122 IWL_DEBUG_INFO("Ch. %d [%sGHz] %s%s%s%s%s%s(0x%02x"
5123 " %ddBm): Ad-Hoc %ssupported\n",
5125 is_channel_a_band(ch_info
) ?
5127 CHECK_AND_PRINT(IBSS
),
5128 CHECK_AND_PRINT(ACTIVE
),
5129 CHECK_AND_PRINT(RADAR
),
5130 CHECK_AND_PRINT(WIDE
),
5131 CHECK_AND_PRINT(NARROW
),
5132 CHECK_AND_PRINT(DFS
),
5133 eeprom_ch_info
[ch
].flags
,
5134 eeprom_ch_info
[ch
].max_power_avg
,
5135 ((eeprom_ch_info
[ch
].
5136 flags
& EEPROM_CHANNEL_IBSS
)
5137 && !(eeprom_ch_info
[ch
].
5138 flags
& EEPROM_CHANNEL_RADAR
))
5141 /* Set the user_txpower_limit to the highest power
5142 * supported by any channel */
5143 if (eeprom_ch_info
[ch
].max_power_avg
>
5144 priv
->user_txpower_limit
)
5145 priv
->user_txpower_limit
=
5146 eeprom_ch_info
[ch
].max_power_avg
;
5152 /* Set up txpower settings in driver for all channels */
5153 if (iwl3945_txpower_set_from_eeprom(priv
))
5160 * iwl3945_free_channel_map - undo allocations in iwl3945_init_channel_map
5162 static void iwl3945_free_channel_map(struct iwl3945_priv
*priv
)
5164 kfree(priv
->channel_info
);
5165 priv
->channel_count
= 0;
5168 /* For active scan, listen ACTIVE_DWELL_TIME (msec) on each channel after
5169 * sending probe req. This should be set long enough to hear probe responses
5170 * from more than one AP. */
5171 #define IWL_ACTIVE_DWELL_TIME_24 (20) /* all times in msec */
5172 #define IWL_ACTIVE_DWELL_TIME_52 (10)
5174 /* For faster active scanning, scan will move to the next channel if fewer than
5175 * PLCP_QUIET_THRESH packets are heard on this channel within
5176 * ACTIVE_QUIET_TIME after sending probe request. This shortens the dwell
5177 * time if it's a quiet channel (nothing responded to our probe, and there's
5178 * no other traffic).
5179 * Disable "quiet" feature by setting PLCP_QUIET_THRESH to 0. */
5180 #define IWL_PLCP_QUIET_THRESH __constant_cpu_to_le16(1) /* packets */
5181 #define IWL_ACTIVE_QUIET_TIME __constant_cpu_to_le16(5) /* msec */
5183 /* For passive scan, listen PASSIVE_DWELL_TIME (msec) on each channel.
5184 * Must be set longer than active dwell time.
5185 * For the most reliable scan, set > AP beacon interval (typically 100msec). */
5186 #define IWL_PASSIVE_DWELL_TIME_24 (20) /* all times in msec */
5187 #define IWL_PASSIVE_DWELL_TIME_52 (10)
5188 #define IWL_PASSIVE_DWELL_BASE (100)
5189 #define IWL_CHANNEL_TUNE_TIME 5
5191 static inline u16
iwl3945_get_active_dwell_time(struct iwl3945_priv
*priv
,
5192 enum ieee80211_band band
)
5194 if (band
== IEEE80211_BAND_5GHZ
)
5195 return IWL_ACTIVE_DWELL_TIME_52
;
5197 return IWL_ACTIVE_DWELL_TIME_24
;
5200 static u16
iwl3945_get_passive_dwell_time(struct iwl3945_priv
*priv
,
5201 enum ieee80211_band band
)
5203 u16 active
= iwl3945_get_active_dwell_time(priv
, band
);
5204 u16 passive
= (band
== IEEE80211_BAND_2GHZ
) ?
5205 IWL_PASSIVE_DWELL_BASE
+ IWL_PASSIVE_DWELL_TIME_24
:
5206 IWL_PASSIVE_DWELL_BASE
+ IWL_PASSIVE_DWELL_TIME_52
;
5208 if (iwl3945_is_associated(priv
)) {
5209 /* If we're associated, we clamp the maximum passive
5210 * dwell time to be 98% of the beacon interval (minus
5211 * 2 * channel tune time) */
5212 passive
= priv
->beacon_int
;
5213 if ((passive
> IWL_PASSIVE_DWELL_BASE
) || !passive
)
5214 passive
= IWL_PASSIVE_DWELL_BASE
;
5215 passive
= (passive
* 98) / 100 - IWL_CHANNEL_TUNE_TIME
* 2;
5218 if (passive
<= active
)
5219 passive
= active
+ 1;
5224 static int iwl3945_get_channels_for_scan(struct iwl3945_priv
*priv
,
5225 enum ieee80211_band band
,
5226 u8 is_active
, u8 direct_mask
,
5227 struct iwl3945_scan_channel
*scan_ch
)
5229 const struct ieee80211_channel
*channels
= NULL
;
5230 const struct ieee80211_supported_band
*sband
;
5231 const struct iwl3945_channel_info
*ch_info
;
5232 u16 passive_dwell
= 0;
5233 u16 active_dwell
= 0;
5236 sband
= iwl3945_get_band(priv
, band
);
5240 channels
= sband
->channels
;
5242 active_dwell
= iwl3945_get_active_dwell_time(priv
, band
);
5243 passive_dwell
= iwl3945_get_passive_dwell_time(priv
, band
);
5245 for (i
= 0, added
= 0; i
< sband
->n_channels
; i
++) {
5246 if (channels
[i
].hw_value
==
5247 le16_to_cpu(priv
->active_rxon
.channel
)) {
5248 if (iwl3945_is_associated(priv
)) {
5250 ("Skipping current channel %d\n",
5251 le16_to_cpu(priv
->active_rxon
.channel
));
5254 } else if (priv
->only_active_channel
)
5257 scan_ch
->channel
= channels
[i
].hw_value
;
5259 ch_info
= iwl3945_get_channel_info(priv
, band
, scan_ch
->channel
);
5260 if (!is_channel_valid(ch_info
)) {
5261 IWL_DEBUG_SCAN("Channel %d is INVALID for this SKU.\n",
5266 if (!is_active
|| is_channel_passive(ch_info
) ||
5267 (channels
[i
].flags
& IEEE80211_CHAN_PASSIVE_SCAN
))
5268 scan_ch
->type
= 0; /* passive */
5270 scan_ch
->type
= 1; /* active */
5272 if (scan_ch
->type
& 1)
5273 scan_ch
->type
|= (direct_mask
<< 1);
5275 if (is_channel_narrow(ch_info
))
5276 scan_ch
->type
|= (1 << 7);
5278 scan_ch
->active_dwell
= cpu_to_le16(active_dwell
);
5279 scan_ch
->passive_dwell
= cpu_to_le16(passive_dwell
);
5281 /* Set txpower levels to defaults */
5282 scan_ch
->tpc
.dsp_atten
= 110;
5283 /* scan_pwr_info->tpc.dsp_atten; */
5285 /*scan_pwr_info->tpc.tx_gain; */
5286 if (band
== IEEE80211_BAND_5GHZ
)
5287 scan_ch
->tpc
.tx_gain
= ((1 << 5) | (3 << 3)) | 3;
5289 scan_ch
->tpc
.tx_gain
= ((1 << 5) | (5 << 3));
5290 /* NOTE: if we were doing 6Mb OFDM for scans we'd use
5292 * scan_ch->tpc.tx_gain = ((1 << 5) | (2 << 3)) | 3;
5296 IWL_DEBUG_SCAN("Scanning %d [%s %d]\n",
5298 (scan_ch
->type
& 1) ? "ACTIVE" : "PASSIVE",
5299 (scan_ch
->type
& 1) ?
5300 active_dwell
: passive_dwell
);
5306 IWL_DEBUG_SCAN("total channels to scan %d \n", added
);
5310 static void iwl3945_init_hw_rates(struct iwl3945_priv
*priv
,
5311 struct ieee80211_rate
*rates
)
5315 for (i
= 0; i
< IWL_RATE_COUNT
; i
++) {
5316 rates
[i
].bitrate
= iwl3945_rates
[i
].ieee
* 5;
5317 rates
[i
].hw_value
= i
; /* Rate scaling will work on indexes */
5318 rates
[i
].hw_value_short
= i
;
5320 if ((i
> IWL_LAST_OFDM_RATE
) || (i
< IWL_FIRST_OFDM_RATE
)) {
5322 * If CCK != 1M then set short preamble rate flag.
5324 rates
[i
].flags
|= (iwl3945_rates
[i
].plcp
== 10) ?
5325 0 : IEEE80211_RATE_SHORT_PREAMBLE
;
5331 * iwl3945_init_geos - Initialize mac80211's geo/channel info based from eeprom
5333 static int iwl3945_init_geos(struct iwl3945_priv
*priv
)
5335 struct iwl3945_channel_info
*ch
;
5336 struct ieee80211_supported_band
*band
;
5337 struct ieee80211_channel
*channels
;
5338 struct ieee80211_channel
*geo_ch
;
5339 struct ieee80211_rate
*rates
;
5342 if (priv
->bands
[IEEE80211_BAND_2GHZ
].n_bitrates
||
5343 priv
->bands
[IEEE80211_BAND_5GHZ
].n_bitrates
) {
5344 IWL_DEBUG_INFO("Geography modes already initialized.\n");
5345 set_bit(STATUS_GEO_CONFIGURED
, &priv
->status
);
5349 channels
= kzalloc(sizeof(struct ieee80211_channel
) *
5350 priv
->channel_count
, GFP_KERNEL
);
5354 rates
= kzalloc((sizeof(struct ieee80211_rate
) * (IWL_MAX_RATES
+ 1)),
5361 /* 5.2GHz channels start after the 2.4GHz channels */
5362 band
= &priv
->bands
[IEEE80211_BAND_5GHZ
];
5363 band
->channels
= &channels
[ARRAY_SIZE(iwl3945_eeprom_band_1
)];
5364 band
->bitrates
= &rates
[4];
5365 band
->n_bitrates
= 8; /* just OFDM */
5367 band
= &priv
->bands
[IEEE80211_BAND_2GHZ
];
5368 band
->channels
= channels
;
5369 band
->bitrates
= rates
;
5370 band
->n_bitrates
= 12; /* OFDM & CCK */
5372 priv
->ieee_channels
= channels
;
5373 priv
->ieee_rates
= rates
;
5375 iwl3945_init_hw_rates(priv
, rates
);
5377 for (i
= 0, geo_ch
= channels
; i
< priv
->channel_count
; i
++) {
5378 ch
= &priv
->channel_info
[i
];
5380 if (!is_channel_valid(ch
)) {
5381 IWL_DEBUG_INFO("Channel %d [%sGHz] is restricted -- "
5383 ch
->channel
, is_channel_a_band(ch
) ?
5388 if (is_channel_a_band(ch
))
5389 geo_ch
= &priv
->bands
[IEEE80211_BAND_5GHZ
].channels
[priv
->bands
[IEEE80211_BAND_5GHZ
].n_channels
++];
5391 geo_ch
= &priv
->bands
[IEEE80211_BAND_2GHZ
].channels
[priv
->bands
[IEEE80211_BAND_2GHZ
].n_channels
++];
5393 geo_ch
->center_freq
= ieee80211chan2mhz(ch
->channel
);
5394 geo_ch
->max_power
= ch
->max_power_avg
;
5395 geo_ch
->max_antenna_gain
= 0xff;
5396 geo_ch
->hw_value
= ch
->channel
;
5398 if (is_channel_valid(ch
)) {
5399 if (!(ch
->flags
& EEPROM_CHANNEL_IBSS
))
5400 geo_ch
->flags
|= IEEE80211_CHAN_NO_IBSS
;
5402 if (!(ch
->flags
& EEPROM_CHANNEL_ACTIVE
))
5403 geo_ch
->flags
|= IEEE80211_CHAN_PASSIVE_SCAN
;
5405 if (ch
->flags
& EEPROM_CHANNEL_RADAR
)
5406 geo_ch
->flags
|= IEEE80211_CHAN_RADAR
;
5408 if (ch
->max_power_avg
> priv
->max_channel_txpower_limit
)
5409 priv
->max_channel_txpower_limit
=
5412 geo_ch
->flags
|= IEEE80211_CHAN_DISABLED
;
5415 if ((priv
->bands
[IEEE80211_BAND_5GHZ
].n_channels
== 0) && priv
->is_abg
) {
5416 printk(KERN_INFO DRV_NAME
5417 ": Incorrectly detected BG card as ABG. Please send "
5418 "your PCI ID 0x%04X:0x%04X to maintainer.\n",
5419 priv
->pci_dev
->device
, priv
->pci_dev
->subsystem_device
);
5423 printk(KERN_INFO DRV_NAME
5424 ": Tunable channels: %d 802.11bg, %d 802.11a channels\n",
5425 priv
->bands
[IEEE80211_BAND_2GHZ
].n_channels
,
5426 priv
->bands
[IEEE80211_BAND_5GHZ
].n_channels
);
5428 priv
->hw
->wiphy
->bands
[IEEE80211_BAND_2GHZ
] = &priv
->bands
[IEEE80211_BAND_2GHZ
];
5429 priv
->hw
->wiphy
->bands
[IEEE80211_BAND_5GHZ
] = &priv
->bands
[IEEE80211_BAND_5GHZ
];
5431 set_bit(STATUS_GEO_CONFIGURED
, &priv
->status
);
5437 * iwl3945_free_geos - undo allocations in iwl3945_init_geos
5439 static void iwl3945_free_geos(struct iwl3945_priv
*priv
)
5441 kfree(priv
->ieee_channels
);
5442 kfree(priv
->ieee_rates
);
5443 clear_bit(STATUS_GEO_CONFIGURED
, &priv
->status
);
5446 /******************************************************************************
5448 * uCode download functions
5450 ******************************************************************************/
5452 static void iwl3945_dealloc_ucode_pci(struct iwl3945_priv
*priv
)
5454 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_code
);
5455 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_data
);
5456 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_data_backup
);
5457 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_init
);
5458 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_init_data
);
5459 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_boot
);
5463 * iwl3945_verify_inst_full - verify runtime uCode image in card vs. host,
5464 * looking at all data.
5466 static int iwl3945_verify_inst_full(struct iwl3945_priv
*priv
, __le32
* image
, u32 len
)
5473 IWL_DEBUG_INFO("ucode inst image size is %u\n", len
);
5475 rc
= iwl3945_grab_nic_access(priv
);
5479 iwl3945_write_direct32(priv
, HBUS_TARG_MEM_RADDR
, RTC_INST_LOWER_BOUND
);
5482 for (; len
> 0; len
-= sizeof(u32
), image
++) {
5483 /* read data comes through single port, auto-incr addr */
5484 /* NOTE: Use the debugless read so we don't flood kernel log
5485 * if IWL_DL_IO is set */
5486 val
= _iwl3945_read_direct32(priv
, HBUS_TARG_MEM_RDAT
);
5487 if (val
!= le32_to_cpu(*image
)) {
5488 IWL_ERROR("uCode INST section is invalid at "
5489 "offset 0x%x, is 0x%x, s/b 0x%x\n",
5490 save_len
- len
, val
, le32_to_cpu(*image
));
5498 iwl3945_release_nic_access(priv
);
5501 IWL_DEBUG_INFO("ucode image in INSTRUCTION memory is good\n");
5508 * iwl3945_verify_inst_sparse - verify runtime uCode image in card vs. host,
5509 * using sample data 100 bytes apart. If these sample points are good,
5510 * it's a pretty good bet that everything between them is good, too.
5512 static int iwl3945_verify_inst_sparse(struct iwl3945_priv
*priv
, __le32
*image
, u32 len
)
5519 IWL_DEBUG_INFO("ucode inst image size is %u\n", len
);
5521 rc
= iwl3945_grab_nic_access(priv
);
5525 for (i
= 0; i
< len
; i
+= 100, image
+= 100/sizeof(u32
)) {
5526 /* read data comes through single port, auto-incr addr */
5527 /* NOTE: Use the debugless read so we don't flood kernel log
5528 * if IWL_DL_IO is set */
5529 iwl3945_write_direct32(priv
, HBUS_TARG_MEM_RADDR
,
5530 i
+ RTC_INST_LOWER_BOUND
);
5531 val
= _iwl3945_read_direct32(priv
, HBUS_TARG_MEM_RDAT
);
5532 if (val
!= le32_to_cpu(*image
)) {
5533 #if 0 /* Enable this if you want to see details */
5534 IWL_ERROR("uCode INST section is invalid at "
5535 "offset 0x%x, is 0x%x, s/b 0x%x\n",
5545 iwl3945_release_nic_access(priv
);
5552 * iwl3945_verify_ucode - determine which instruction image is in SRAM,
5553 * and verify its contents
5555 static int iwl3945_verify_ucode(struct iwl3945_priv
*priv
)
5562 image
= (__le32
*)priv
->ucode_boot
.v_addr
;
5563 len
= priv
->ucode_boot
.len
;
5564 rc
= iwl3945_verify_inst_sparse(priv
, image
, len
);
5566 IWL_DEBUG_INFO("Bootstrap uCode is good in inst SRAM\n");
5570 /* Try initialize */
5571 image
= (__le32
*)priv
->ucode_init
.v_addr
;
5572 len
= priv
->ucode_init
.len
;
5573 rc
= iwl3945_verify_inst_sparse(priv
, image
, len
);
5575 IWL_DEBUG_INFO("Initialize uCode is good in inst SRAM\n");
5579 /* Try runtime/protocol */
5580 image
= (__le32
*)priv
->ucode_code
.v_addr
;
5581 len
= priv
->ucode_code
.len
;
5582 rc
= iwl3945_verify_inst_sparse(priv
, image
, len
);
5584 IWL_DEBUG_INFO("Runtime uCode is good in inst SRAM\n");
5588 IWL_ERROR("NO VALID UCODE IMAGE IN INSTRUCTION SRAM!!\n");
5590 /* Since nothing seems to match, show first several data entries in
5591 * instruction SRAM, so maybe visual inspection will give a clue.
5592 * Selection of bootstrap image (vs. other images) is arbitrary. */
5593 image
= (__le32
*)priv
->ucode_boot
.v_addr
;
5594 len
= priv
->ucode_boot
.len
;
5595 rc
= iwl3945_verify_inst_full(priv
, image
, len
);
5601 /* check contents of special bootstrap uCode SRAM */
5602 static int iwl3945_verify_bsm(struct iwl3945_priv
*priv
)
5604 __le32
*image
= priv
->ucode_boot
.v_addr
;
5605 u32 len
= priv
->ucode_boot
.len
;
5609 IWL_DEBUG_INFO("Begin verify bsm\n");
5611 /* verify BSM SRAM contents */
5612 val
= iwl3945_read_prph(priv
, BSM_WR_DWCOUNT_REG
);
5613 for (reg
= BSM_SRAM_LOWER_BOUND
;
5614 reg
< BSM_SRAM_LOWER_BOUND
+ len
;
5615 reg
+= sizeof(u32
), image
++) {
5616 val
= iwl3945_read_prph(priv
, reg
);
5617 if (val
!= le32_to_cpu(*image
)) {
5618 IWL_ERROR("BSM uCode verification failed at "
5619 "addr 0x%08X+%u (of %u), is 0x%x, s/b 0x%x\n",
5620 BSM_SRAM_LOWER_BOUND
,
5621 reg
- BSM_SRAM_LOWER_BOUND
, len
,
5622 val
, le32_to_cpu(*image
));
5627 IWL_DEBUG_INFO("BSM bootstrap uCode image OK\n");
5633 * iwl3945_load_bsm - Load bootstrap instructions
5637 * The Bootstrap State Machine (BSM) stores a short bootstrap uCode program
5638 * in special SRAM that does not power down during RFKILL. When powering back
5639 * up after power-saving sleeps (or during initial uCode load), the BSM loads
5640 * the bootstrap program into the on-board processor, and starts it.
5642 * The bootstrap program loads (via DMA) instructions and data for a new
5643 * program from host DRAM locations indicated by the host driver in the
5644 * BSM_DRAM_* registers. Once the new program is loaded, it starts
5647 * When initializing the NIC, the host driver points the BSM to the
5648 * "initialize" uCode image. This uCode sets up some internal data, then
5649 * notifies host via "initialize alive" that it is complete.
5651 * The host then replaces the BSM_DRAM_* pointer values to point to the
5652 * normal runtime uCode instructions and a backup uCode data cache buffer
5653 * (filled initially with starting data values for the on-board processor),
5654 * then triggers the "initialize" uCode to load and launch the runtime uCode,
5655 * which begins normal operation.
5657 * When doing a power-save shutdown, runtime uCode saves data SRAM into
5658 * the backup data cache in DRAM before SRAM is powered down.
5660 * When powering back up, the BSM loads the bootstrap program. This reloads
5661 * the runtime uCode instructions and the backup data cache into SRAM,
5662 * and re-launches the runtime uCode from where it left off.
5664 static int iwl3945_load_bsm(struct iwl3945_priv
*priv
)
5666 __le32
*image
= priv
->ucode_boot
.v_addr
;
5667 u32 len
= priv
->ucode_boot
.len
;
5677 IWL_DEBUG_INFO("Begin load bsm\n");
5679 /* make sure bootstrap program is no larger than BSM's SRAM size */
5680 if (len
> IWL_MAX_BSM_SIZE
)
5683 /* Tell bootstrap uCode where to find the "Initialize" uCode
5684 * in host DRAM ... host DRAM physical address bits 31:0 for 3945.
5685 * NOTE: iwl3945_initialize_alive_start() will replace these values,
5686 * after the "initialize" uCode has run, to point to
5687 * runtime/protocol instructions and backup data cache. */
5688 pinst
= priv
->ucode_init
.p_addr
;
5689 pdata
= priv
->ucode_init_data
.p_addr
;
5690 inst_len
= priv
->ucode_init
.len
;
5691 data_len
= priv
->ucode_init_data
.len
;
5693 rc
= iwl3945_grab_nic_access(priv
);
5697 iwl3945_write_prph(priv
, BSM_DRAM_INST_PTR_REG
, pinst
);
5698 iwl3945_write_prph(priv
, BSM_DRAM_DATA_PTR_REG
, pdata
);
5699 iwl3945_write_prph(priv
, BSM_DRAM_INST_BYTECOUNT_REG
, inst_len
);
5700 iwl3945_write_prph(priv
, BSM_DRAM_DATA_BYTECOUNT_REG
, data_len
);
5702 /* Fill BSM memory with bootstrap instructions */
5703 for (reg_offset
= BSM_SRAM_LOWER_BOUND
;
5704 reg_offset
< BSM_SRAM_LOWER_BOUND
+ len
;
5705 reg_offset
+= sizeof(u32
), image
++)
5706 _iwl3945_write_prph(priv
, reg_offset
,
5707 le32_to_cpu(*image
));
5709 rc
= iwl3945_verify_bsm(priv
);
5711 iwl3945_release_nic_access(priv
);
5715 /* Tell BSM to copy from BSM SRAM into instruction SRAM, when asked */
5716 iwl3945_write_prph(priv
, BSM_WR_MEM_SRC_REG
, 0x0);
5717 iwl3945_write_prph(priv
, BSM_WR_MEM_DST_REG
,
5718 RTC_INST_LOWER_BOUND
);
5719 iwl3945_write_prph(priv
, BSM_WR_DWCOUNT_REG
, len
/ sizeof(u32
));
5721 /* Load bootstrap code into instruction SRAM now,
5722 * to prepare to load "initialize" uCode */
5723 iwl3945_write_prph(priv
, BSM_WR_CTRL_REG
,
5724 BSM_WR_CTRL_REG_BIT_START
);
5726 /* Wait for load of bootstrap uCode to finish */
5727 for (i
= 0; i
< 100; i
++) {
5728 done
= iwl3945_read_prph(priv
, BSM_WR_CTRL_REG
);
5729 if (!(done
& BSM_WR_CTRL_REG_BIT_START
))
5734 IWL_DEBUG_INFO("BSM write complete, poll %d iterations\n", i
);
5736 IWL_ERROR("BSM write did not complete!\n");
5740 /* Enable future boot loads whenever power management unit triggers it
5741 * (e.g. when powering back up after power-save shutdown) */
5742 iwl3945_write_prph(priv
, BSM_WR_CTRL_REG
,
5743 BSM_WR_CTRL_REG_BIT_START_EN
);
5745 iwl3945_release_nic_access(priv
);
5750 static void iwl3945_nic_start(struct iwl3945_priv
*priv
)
5752 /* Remove all resets to allow NIC to operate */
5753 iwl3945_write32(priv
, CSR_RESET
, 0);
5757 * iwl3945_read_ucode - Read uCode images from disk file.
5759 * Copy into buffers for card to fetch via bus-mastering
5761 static int iwl3945_read_ucode(struct iwl3945_priv
*priv
)
5763 struct iwl3945_ucode
*ucode
;
5765 const struct firmware
*ucode_raw
;
5766 /* firmware file name contains uCode/driver compatibility version */
5767 const char *name
= "iwlwifi-3945" IWL3945_UCODE_API
".ucode";
5770 u32 ver
, inst_size
, data_size
, init_size
, init_data_size
, boot_size
;
5772 /* Ask kernel firmware_class module to get the boot firmware off disk.
5773 * request_firmware() is synchronous, file is in memory on return. */
5774 ret
= request_firmware(&ucode_raw
, name
, &priv
->pci_dev
->dev
);
5776 IWL_ERROR("%s firmware file req failed: Reason %d\n",
5781 IWL_DEBUG_INFO("Got firmware '%s' file (%zd bytes) from disk\n",
5782 name
, ucode_raw
->size
);
5784 /* Make sure that we got at least our header! */
5785 if (ucode_raw
->size
< sizeof(*ucode
)) {
5786 IWL_ERROR("File size way too small!\n");
5791 /* Data from ucode file: header followed by uCode images */
5792 ucode
= (void *)ucode_raw
->data
;
5794 ver
= le32_to_cpu(ucode
->ver
);
5795 inst_size
= le32_to_cpu(ucode
->inst_size
);
5796 data_size
= le32_to_cpu(ucode
->data_size
);
5797 init_size
= le32_to_cpu(ucode
->init_size
);
5798 init_data_size
= le32_to_cpu(ucode
->init_data_size
);
5799 boot_size
= le32_to_cpu(ucode
->boot_size
);
5801 IWL_DEBUG_INFO("f/w package hdr ucode version = 0x%x\n", ver
);
5802 IWL_DEBUG_INFO("f/w package hdr runtime inst size = %u\n", inst_size
);
5803 IWL_DEBUG_INFO("f/w package hdr runtime data size = %u\n", data_size
);
5804 IWL_DEBUG_INFO("f/w package hdr init inst size = %u\n", init_size
);
5805 IWL_DEBUG_INFO("f/w package hdr init data size = %u\n", init_data_size
);
5806 IWL_DEBUG_INFO("f/w package hdr boot inst size = %u\n", boot_size
);
5808 /* Verify size of file vs. image size info in file's header */
5809 if (ucode_raw
->size
< sizeof(*ucode
) +
5810 inst_size
+ data_size
+ init_size
+
5811 init_data_size
+ boot_size
) {
5813 IWL_DEBUG_INFO("uCode file size %d too small\n",
5814 (int)ucode_raw
->size
);
5819 /* Verify that uCode images will fit in card's SRAM */
5820 if (inst_size
> IWL_MAX_INST_SIZE
) {
5821 IWL_DEBUG_INFO("uCode instr len %d too large to fit in\n",
5827 if (data_size
> IWL_MAX_DATA_SIZE
) {
5828 IWL_DEBUG_INFO("uCode data len %d too large to fit in\n",
5833 if (init_size
> IWL_MAX_INST_SIZE
) {
5834 IWL_DEBUG_INFO("uCode init instr len %d too large to fit in\n",
5839 if (init_data_size
> IWL_MAX_DATA_SIZE
) {
5840 IWL_DEBUG_INFO("uCode init data len %d too large to fit in\n",
5845 if (boot_size
> IWL_MAX_BSM_SIZE
) {
5846 IWL_DEBUG_INFO("uCode boot instr len %d too large to fit in\n",
5852 /* Allocate ucode buffers for card's bus-master loading ... */
5854 /* Runtime instructions and 2 copies of data:
5855 * 1) unmodified from disk
5856 * 2) backup cache for save/restore during power-downs */
5857 priv
->ucode_code
.len
= inst_size
;
5858 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_code
);
5860 priv
->ucode_data
.len
= data_size
;
5861 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_data
);
5863 priv
->ucode_data_backup
.len
= data_size
;
5864 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_data_backup
);
5866 if (!priv
->ucode_code
.v_addr
|| !priv
->ucode_data
.v_addr
||
5867 !priv
->ucode_data_backup
.v_addr
)
5870 /* Initialization instructions and data */
5871 if (init_size
&& init_data_size
) {
5872 priv
->ucode_init
.len
= init_size
;
5873 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_init
);
5875 priv
->ucode_init_data
.len
= init_data_size
;
5876 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_init_data
);
5878 if (!priv
->ucode_init
.v_addr
|| !priv
->ucode_init_data
.v_addr
)
5882 /* Bootstrap (instructions only, no data) */
5884 priv
->ucode_boot
.len
= boot_size
;
5885 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_boot
);
5887 if (!priv
->ucode_boot
.v_addr
)
5891 /* Copy images into buffers for card's bus-master reads ... */
5893 /* Runtime instructions (first block of data in file) */
5894 src
= &ucode
->data
[0];
5895 len
= priv
->ucode_code
.len
;
5896 IWL_DEBUG_INFO("Copying (but not loading) uCode instr len %Zd\n", len
);
5897 memcpy(priv
->ucode_code
.v_addr
, src
, len
);
5898 IWL_DEBUG_INFO("uCode instr buf vaddr = 0x%p, paddr = 0x%08x\n",
5899 priv
->ucode_code
.v_addr
, (u32
)priv
->ucode_code
.p_addr
);
5901 /* Runtime data (2nd block)
5902 * NOTE: Copy into backup buffer will be done in iwl3945_up() */
5903 src
= &ucode
->data
[inst_size
];
5904 len
= priv
->ucode_data
.len
;
5905 IWL_DEBUG_INFO("Copying (but not loading) uCode data len %Zd\n", len
);
5906 memcpy(priv
->ucode_data
.v_addr
, src
, len
);
5907 memcpy(priv
->ucode_data_backup
.v_addr
, src
, len
);
5909 /* Initialization instructions (3rd block) */
5911 src
= &ucode
->data
[inst_size
+ data_size
];
5912 len
= priv
->ucode_init
.len
;
5913 IWL_DEBUG_INFO("Copying (but not loading) init instr len %Zd\n",
5915 memcpy(priv
->ucode_init
.v_addr
, src
, len
);
5918 /* Initialization data (4th block) */
5919 if (init_data_size
) {
5920 src
= &ucode
->data
[inst_size
+ data_size
+ init_size
];
5921 len
= priv
->ucode_init_data
.len
;
5922 IWL_DEBUG_INFO("Copying (but not loading) init data len %d\n",
5924 memcpy(priv
->ucode_init_data
.v_addr
, src
, len
);
5927 /* Bootstrap instructions (5th block) */
5928 src
= &ucode
->data
[inst_size
+ data_size
+ init_size
+ init_data_size
];
5929 len
= priv
->ucode_boot
.len
;
5930 IWL_DEBUG_INFO("Copying (but not loading) boot instr len %d\n",
5932 memcpy(priv
->ucode_boot
.v_addr
, src
, len
);
5934 /* We have our copies now, allow OS release its copies */
5935 release_firmware(ucode_raw
);
5939 IWL_ERROR("failed to allocate pci memory\n");
5941 iwl3945_dealloc_ucode_pci(priv
);
5944 release_firmware(ucode_raw
);
5952 * iwl3945_set_ucode_ptrs - Set uCode address location
5954 * Tell initialization uCode where to find runtime uCode.
5956 * BSM registers initially contain pointers to initialization uCode.
5957 * We need to replace them to load runtime uCode inst and data,
5958 * and to save runtime data when powering down.
5960 static int iwl3945_set_ucode_ptrs(struct iwl3945_priv
*priv
)
5965 unsigned long flags
;
5967 /* bits 31:0 for 3945 */
5968 pinst
= priv
->ucode_code
.p_addr
;
5969 pdata
= priv
->ucode_data_backup
.p_addr
;
5971 spin_lock_irqsave(&priv
->lock
, flags
);
5972 rc
= iwl3945_grab_nic_access(priv
);
5974 spin_unlock_irqrestore(&priv
->lock
, flags
);
5978 /* Tell bootstrap uCode where to find image to load */
5979 iwl3945_write_prph(priv
, BSM_DRAM_INST_PTR_REG
, pinst
);
5980 iwl3945_write_prph(priv
, BSM_DRAM_DATA_PTR_REG
, pdata
);
5981 iwl3945_write_prph(priv
, BSM_DRAM_DATA_BYTECOUNT_REG
,
5982 priv
->ucode_data
.len
);
5984 /* Inst bytecount must be last to set up, bit 31 signals uCode
5985 * that all new ptr/size info is in place */
5986 iwl3945_write_prph(priv
, BSM_DRAM_INST_BYTECOUNT_REG
,
5987 priv
->ucode_code
.len
| BSM_DRAM_INST_LOAD
);
5989 iwl3945_release_nic_access(priv
);
5991 spin_unlock_irqrestore(&priv
->lock
, flags
);
5993 IWL_DEBUG_INFO("Runtime uCode pointers are set.\n");
5999 * iwl3945_init_alive_start - Called after REPLY_ALIVE notification received
6001 * Called after REPLY_ALIVE notification received from "initialize" uCode.
6003 * Tell "initialize" uCode to go ahead and load the runtime uCode.
6005 static void iwl3945_init_alive_start(struct iwl3945_priv
*priv
)
6007 /* Check alive response for "valid" sign from uCode */
6008 if (priv
->card_alive_init
.is_valid
!= UCODE_VALID_OK
) {
6009 /* We had an error bringing up the hardware, so take it
6010 * all the way back down so we can try again */
6011 IWL_DEBUG_INFO("Initialize Alive failed.\n");
6015 /* Bootstrap uCode has loaded initialize uCode ... verify inst image.
6016 * This is a paranoid check, because we would not have gotten the
6017 * "initialize" alive if code weren't properly loaded. */
6018 if (iwl3945_verify_ucode(priv
)) {
6019 /* Runtime instruction load was bad;
6020 * take it all the way back down so we can try again */
6021 IWL_DEBUG_INFO("Bad \"initialize\" uCode load.\n");
6025 /* Send pointers to protocol/runtime uCode image ... init code will
6026 * load and launch runtime uCode, which will send us another "Alive"
6028 IWL_DEBUG_INFO("Initialization Alive received.\n");
6029 if (iwl3945_set_ucode_ptrs(priv
)) {
6030 /* Runtime instruction load won't happen;
6031 * take it all the way back down so we can try again */
6032 IWL_DEBUG_INFO("Couldn't set up uCode pointers.\n");
6038 queue_work(priv
->workqueue
, &priv
->restart
);
6043 * iwl3945_alive_start - called after REPLY_ALIVE notification received
6044 * from protocol/runtime uCode (initialization uCode's
6045 * Alive gets handled by iwl3945_init_alive_start()).
6047 static void iwl3945_alive_start(struct iwl3945_priv
*priv
)
6050 int thermal_spin
= 0;
6053 IWL_DEBUG_INFO("Runtime Alive received.\n");
6055 if (priv
->card_alive
.is_valid
!= UCODE_VALID_OK
) {
6056 /* We had an error bringing up the hardware, so take it
6057 * all the way back down so we can try again */
6058 IWL_DEBUG_INFO("Alive failed.\n");
6062 /* Initialize uCode has loaded Runtime uCode ... verify inst image.
6063 * This is a paranoid check, because we would not have gotten the
6064 * "runtime" alive if code weren't properly loaded. */
6065 if (iwl3945_verify_ucode(priv
)) {
6066 /* Runtime instruction load was bad;
6067 * take it all the way back down so we can try again */
6068 IWL_DEBUG_INFO("Bad runtime uCode load.\n");
6072 iwl3945_clear_stations_table(priv
);
6074 rc
= iwl3945_grab_nic_access(priv
);
6076 IWL_WARNING("Can not read rfkill status from adapter\n");
6080 rfkill
= iwl3945_read_prph(priv
, APMG_RFKILL_REG
);
6081 IWL_DEBUG_INFO("RFKILL status: 0x%x\n", rfkill
);
6082 iwl3945_release_nic_access(priv
);
6085 clear_bit(STATUS_RF_KILL_HW
, &priv
->status
);
6086 /* if rfkill is not on, then wait for thermal
6087 * sensor in adapter to kick in */
6088 while (iwl3945_hw_get_temperature(priv
) == 0) {
6094 IWL_DEBUG_INFO("Thermal calibration took %dus\n",
6097 set_bit(STATUS_RF_KILL_HW
, &priv
->status
);
6099 /* After the ALIVE response, we can send commands to 3945 uCode */
6100 set_bit(STATUS_ALIVE
, &priv
->status
);
6102 /* Clear out the uCode error bit if it is set */
6103 clear_bit(STATUS_FW_ERROR
, &priv
->status
);
6105 if (iwl3945_is_rfkill(priv
))
6108 ieee80211_start_queues(priv
->hw
);
6110 priv
->active_rate
= priv
->rates_mask
;
6111 priv
->active_rate_basic
= priv
->rates_mask
& IWL_BASIC_RATES_MASK
;
6113 iwl3945_send_power_mode(priv
, IWL_POWER_LEVEL(priv
->power_mode
));
6115 if (iwl3945_is_associated(priv
)) {
6116 struct iwl3945_rxon_cmd
*active_rxon
=
6117 (struct iwl3945_rxon_cmd
*)(&priv
->active_rxon
);
6119 memcpy(&priv
->staging_rxon
, &priv
->active_rxon
,
6120 sizeof(priv
->staging_rxon
));
6121 active_rxon
->filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
6123 /* Initialize our rx_config data */
6124 iwl3945_connection_init_rx_config(priv
);
6125 memcpy(priv
->staging_rxon
.node_addr
, priv
->mac_addr
, ETH_ALEN
);
6128 /* Configure Bluetooth device coexistence support */
6129 iwl3945_send_bt_config(priv
);
6131 /* Configure the adapter for unassociated operation */
6132 iwl3945_commit_rxon(priv
);
6134 /* At this point, the NIC is initialized and operational */
6135 priv
->notif_missed_beacons
= 0;
6136 set_bit(STATUS_READY
, &priv
->status
);
6138 iwl3945_reg_txpower_periodic(priv
);
6140 IWL_DEBUG_INFO("ALIVE processing complete.\n");
6141 wake_up_interruptible(&priv
->wait_command_queue
);
6143 if (priv
->error_recovering
)
6144 iwl3945_error_recovery(priv
);
6149 queue_work(priv
->workqueue
, &priv
->restart
);
6152 static void iwl3945_cancel_deferred_work(struct iwl3945_priv
*priv
);
6154 static void __iwl3945_down(struct iwl3945_priv
*priv
)
6156 unsigned long flags
;
6157 int exit_pending
= test_bit(STATUS_EXIT_PENDING
, &priv
->status
);
6158 struct ieee80211_conf
*conf
= NULL
;
6160 IWL_DEBUG_INFO(DRV_NAME
" is going down\n");
6162 conf
= ieee80211_get_hw_conf(priv
->hw
);
6165 set_bit(STATUS_EXIT_PENDING
, &priv
->status
);
6167 iwl3945_clear_stations_table(priv
);
6169 /* Unblock any waiting calls */
6170 wake_up_interruptible_all(&priv
->wait_command_queue
);
6172 /* Wipe out the EXIT_PENDING status bit if we are not actually
6173 * exiting the module */
6175 clear_bit(STATUS_EXIT_PENDING
, &priv
->status
);
6177 /* stop and reset the on-board processor */
6178 iwl3945_write32(priv
, CSR_RESET
, CSR_RESET_REG_FLAG_NEVO_RESET
);
6180 /* tell the device to stop sending interrupts */
6181 iwl3945_disable_interrupts(priv
);
6183 if (priv
->mac80211_registered
)
6184 ieee80211_stop_queues(priv
->hw
);
6186 /* If we have not previously called iwl3945_init() then
6187 * clear all bits but the RF Kill and SUSPEND bits and return */
6188 if (!iwl3945_is_init(priv
)) {
6189 priv
->status
= test_bit(STATUS_RF_KILL_HW
, &priv
->status
) <<
6191 test_bit(STATUS_RF_KILL_SW
, &priv
->status
) <<
6193 test_bit(STATUS_GEO_CONFIGURED
, &priv
->status
) <<
6194 STATUS_GEO_CONFIGURED
|
6195 test_bit(STATUS_IN_SUSPEND
, &priv
->status
) <<
6200 /* ...otherwise clear out all the status bits but the RF Kill and
6201 * SUSPEND bits and continue taking the NIC down. */
6202 priv
->status
&= test_bit(STATUS_RF_KILL_HW
, &priv
->status
) <<
6204 test_bit(STATUS_RF_KILL_SW
, &priv
->status
) <<
6206 test_bit(STATUS_GEO_CONFIGURED
, &priv
->status
) <<
6207 STATUS_GEO_CONFIGURED
|
6208 test_bit(STATUS_IN_SUSPEND
, &priv
->status
) <<
6210 test_bit(STATUS_FW_ERROR
, &priv
->status
) <<
6213 spin_lock_irqsave(&priv
->lock
, flags
);
6214 iwl3945_clear_bit(priv
, CSR_GP_CNTRL
, CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ
);
6215 spin_unlock_irqrestore(&priv
->lock
, flags
);
6217 iwl3945_hw_txq_ctx_stop(priv
);
6218 iwl3945_hw_rxq_stop(priv
);
6220 spin_lock_irqsave(&priv
->lock
, flags
);
6221 if (!iwl3945_grab_nic_access(priv
)) {
6222 iwl3945_write_prph(priv
, APMG_CLK_DIS_REG
,
6223 APMG_CLK_VAL_DMA_CLK_RQT
);
6224 iwl3945_release_nic_access(priv
);
6226 spin_unlock_irqrestore(&priv
->lock
, flags
);
6230 iwl3945_hw_nic_stop_master(priv
);
6231 iwl3945_set_bit(priv
, CSR_RESET
, CSR_RESET_REG_FLAG_SW_RESET
);
6232 iwl3945_hw_nic_reset(priv
);
6235 memset(&priv
->card_alive
, 0, sizeof(struct iwl3945_alive_resp
));
6237 if (priv
->ibss_beacon
)
6238 dev_kfree_skb(priv
->ibss_beacon
);
6239 priv
->ibss_beacon
= NULL
;
6241 /* clear out any free frames */
6242 iwl3945_clear_free_frames(priv
);
6245 static void iwl3945_down(struct iwl3945_priv
*priv
)
6247 mutex_lock(&priv
->mutex
);
6248 __iwl3945_down(priv
);
6249 mutex_unlock(&priv
->mutex
);
6251 iwl3945_cancel_deferred_work(priv
);
6254 #define MAX_HW_RESTARTS 5
6256 static int __iwl3945_up(struct iwl3945_priv
*priv
)
6260 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
)) {
6261 IWL_WARNING("Exit pending; will not bring the NIC up\n");
6265 if (test_bit(STATUS_RF_KILL_SW
, &priv
->status
)) {
6266 IWL_WARNING("Radio disabled by SW RF kill (module "
6271 if (!priv
->ucode_data_backup
.v_addr
|| !priv
->ucode_data
.v_addr
) {
6272 IWL_ERROR("ucode not available for device bringup\n");
6276 /* If platform's RF_KILL switch is NOT set to KILL */
6277 if (iwl3945_read32(priv
, CSR_GP_CNTRL
) &
6278 CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW
)
6279 clear_bit(STATUS_RF_KILL_HW
, &priv
->status
);
6281 set_bit(STATUS_RF_KILL_HW
, &priv
->status
);
6282 if (!test_bit(STATUS_IN_SUSPEND
, &priv
->status
)) {
6283 IWL_WARNING("Radio disabled by HW RF Kill switch\n");
6288 iwl3945_write32(priv
, CSR_INT
, 0xFFFFFFFF);
6290 rc
= iwl3945_hw_nic_init(priv
);
6292 IWL_ERROR("Unable to int nic\n");
6296 /* make sure rfkill handshake bits are cleared */
6297 iwl3945_write32(priv
, CSR_UCODE_DRV_GP1_CLR
, CSR_UCODE_SW_BIT_RFKILL
);
6298 iwl3945_write32(priv
, CSR_UCODE_DRV_GP1_CLR
,
6299 CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED
);
6301 /* clear (again), then enable host interrupts */
6302 iwl3945_write32(priv
, CSR_INT
, 0xFFFFFFFF);
6303 iwl3945_enable_interrupts(priv
);
6305 /* really make sure rfkill handshake bits are cleared */
6306 iwl3945_write32(priv
, CSR_UCODE_DRV_GP1_CLR
, CSR_UCODE_SW_BIT_RFKILL
);
6307 iwl3945_write32(priv
, CSR_UCODE_DRV_GP1_CLR
, CSR_UCODE_SW_BIT_RFKILL
);
6309 /* Copy original ucode data image from disk into backup cache.
6310 * This will be used to initialize the on-board processor's
6311 * data SRAM for a clean start when the runtime program first loads. */
6312 memcpy(priv
->ucode_data_backup
.v_addr
, priv
->ucode_data
.v_addr
,
6313 priv
->ucode_data
.len
);
6315 /* We return success when we resume from suspend and rf_kill is on. */
6316 if (test_bit(STATUS_RF_KILL_HW
, &priv
->status
))
6319 for (i
= 0; i
< MAX_HW_RESTARTS
; i
++) {
6321 iwl3945_clear_stations_table(priv
);
6323 /* load bootstrap state machine,
6324 * load bootstrap program into processor's memory,
6325 * prepare to load the "initialize" uCode */
6326 rc
= iwl3945_load_bsm(priv
);
6329 IWL_ERROR("Unable to set up bootstrap uCode: %d\n", rc
);
6333 /* start card; "initialize" will load runtime ucode */
6334 iwl3945_nic_start(priv
);
6336 IWL_DEBUG_INFO(DRV_NAME
" is coming up\n");
6341 set_bit(STATUS_EXIT_PENDING
, &priv
->status
);
6342 __iwl3945_down(priv
);
6344 /* tried to restart and config the device for as long as our
6345 * patience could withstand */
6346 IWL_ERROR("Unable to initialize device after %d attempts.\n", i
);
6351 /*****************************************************************************
6353 * Workqueue callbacks
6355 *****************************************************************************/
6357 static void iwl3945_bg_init_alive_start(struct work_struct
*data
)
6359 struct iwl3945_priv
*priv
=
6360 container_of(data
, struct iwl3945_priv
, init_alive_start
.work
);
6362 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6365 mutex_lock(&priv
->mutex
);
6366 iwl3945_init_alive_start(priv
);
6367 mutex_unlock(&priv
->mutex
);
6370 static void iwl3945_bg_alive_start(struct work_struct
*data
)
6372 struct iwl3945_priv
*priv
=
6373 container_of(data
, struct iwl3945_priv
, alive_start
.work
);
6375 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6378 mutex_lock(&priv
->mutex
);
6379 iwl3945_alive_start(priv
);
6380 mutex_unlock(&priv
->mutex
);
6383 static void iwl3945_bg_rf_kill(struct work_struct
*work
)
6385 struct iwl3945_priv
*priv
= container_of(work
, struct iwl3945_priv
, rf_kill
);
6387 wake_up_interruptible(&priv
->wait_command_queue
);
6389 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6392 mutex_lock(&priv
->mutex
);
6394 if (!iwl3945_is_rfkill(priv
)) {
6395 IWL_DEBUG(IWL_DL_INFO
| IWL_DL_RF_KILL
,
6396 "HW and/or SW RF Kill no longer active, restarting "
6398 if (!test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6399 queue_work(priv
->workqueue
, &priv
->restart
);
6402 if (!test_bit(STATUS_RF_KILL_HW
, &priv
->status
))
6403 IWL_DEBUG_RF_KILL("Can not turn radio back on - "
6404 "disabled by SW switch\n");
6406 IWL_WARNING("Radio Frequency Kill Switch is On:\n"
6407 "Kill switch must be turned off for "
6408 "wireless networking to work.\n");
6410 mutex_unlock(&priv
->mutex
);
6413 #define IWL_SCAN_CHECK_WATCHDOG (7 * HZ)
6415 static void iwl3945_bg_scan_check(struct work_struct
*data
)
6417 struct iwl3945_priv
*priv
=
6418 container_of(data
, struct iwl3945_priv
, scan_check
.work
);
6420 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6423 mutex_lock(&priv
->mutex
);
6424 if (test_bit(STATUS_SCANNING
, &priv
->status
) ||
6425 test_bit(STATUS_SCAN_ABORTING
, &priv
->status
)) {
6426 IWL_DEBUG(IWL_DL_INFO
| IWL_DL_SCAN
,
6427 "Scan completion watchdog resetting adapter (%dms)\n",
6428 jiffies_to_msecs(IWL_SCAN_CHECK_WATCHDOG
));
6430 if (!test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6431 iwl3945_send_scan_abort(priv
);
6433 mutex_unlock(&priv
->mutex
);
6436 static void iwl3945_bg_request_scan(struct work_struct
*data
)
6438 struct iwl3945_priv
*priv
=
6439 container_of(data
, struct iwl3945_priv
, request_scan
);
6440 struct iwl3945_host_cmd cmd
= {
6441 .id
= REPLY_SCAN_CMD
,
6442 .len
= sizeof(struct iwl3945_scan_cmd
),
6443 .meta
.flags
= CMD_SIZE_HUGE
,
6446 struct iwl3945_scan_cmd
*scan
;
6447 struct ieee80211_conf
*conf
= NULL
;
6449 enum ieee80211_band band
;
6451 conf
= ieee80211_get_hw_conf(priv
->hw
);
6453 mutex_lock(&priv
->mutex
);
6455 if (!iwl3945_is_ready(priv
)) {
6456 IWL_WARNING("request scan called when driver not ready.\n");
6460 /* Make sure the scan wasn't cancelled before this queued work
6461 * was given the chance to run... */
6462 if (!test_bit(STATUS_SCANNING
, &priv
->status
))
6465 /* This should never be called or scheduled if there is currently
6466 * a scan active in the hardware. */
6467 if (test_bit(STATUS_SCAN_HW
, &priv
->status
)) {
6468 IWL_DEBUG_INFO("Multiple concurrent scan requests in parallel. "
6469 "Ignoring second request.\n");
6474 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
)) {
6475 IWL_DEBUG_SCAN("Aborting scan due to device shutdown\n");
6479 if (test_bit(STATUS_SCAN_ABORTING
, &priv
->status
)) {
6480 IWL_DEBUG_HC("Scan request while abort pending. Queuing.\n");
6484 if (iwl3945_is_rfkill(priv
)) {
6485 IWL_DEBUG_HC("Aborting scan due to RF Kill activation\n");
6489 if (!test_bit(STATUS_READY
, &priv
->status
)) {
6490 IWL_DEBUG_HC("Scan request while uninitialized. Queuing.\n");
6494 if (!priv
->scan_bands
) {
6495 IWL_DEBUG_HC("Aborting scan due to no requested bands\n");
6500 priv
->scan
= kmalloc(sizeof(struct iwl3945_scan_cmd
) +
6501 IWL_MAX_SCAN_SIZE
, GFP_KERNEL
);
6508 memset(scan
, 0, sizeof(struct iwl3945_scan_cmd
) + IWL_MAX_SCAN_SIZE
);
6510 scan
->quiet_plcp_th
= IWL_PLCP_QUIET_THRESH
;
6511 scan
->quiet_time
= IWL_ACTIVE_QUIET_TIME
;
6513 if (iwl3945_is_associated(priv
)) {
6516 u32 suspend_time
= 100;
6517 u32 scan_suspend_time
= 100;
6518 unsigned long flags
;
6520 IWL_DEBUG_INFO("Scanning while associated...\n");
6522 spin_lock_irqsave(&priv
->lock
, flags
);
6523 interval
= priv
->beacon_int
;
6524 spin_unlock_irqrestore(&priv
->lock
, flags
);
6526 scan
->suspend_time
= 0;
6527 scan
->max_out_time
= cpu_to_le32(200 * 1024);
6529 interval
= suspend_time
;
6531 * suspend time format:
6532 * 0-19: beacon interval in usec (time before exec.)
6534 * 24-31: number of beacons (suspend between channels)
6537 extra
= (suspend_time
/ interval
) << 24;
6538 scan_suspend_time
= 0xFF0FFFFF &
6539 (extra
| ((suspend_time
% interval
) * 1024));
6541 scan
->suspend_time
= cpu_to_le32(scan_suspend_time
);
6542 IWL_DEBUG_SCAN("suspend_time 0x%X beacon interval %d\n",
6543 scan_suspend_time
, interval
);
6546 /* We should add the ability for user to lock to PASSIVE ONLY */
6547 if (priv
->one_direct_scan
) {
6549 ("Kicking off one direct scan for '%s'\n",
6550 iwl3945_escape_essid(priv
->direct_ssid
,
6551 priv
->direct_ssid_len
));
6552 scan
->direct_scan
[0].id
= WLAN_EID_SSID
;
6553 scan
->direct_scan
[0].len
= priv
->direct_ssid_len
;
6554 memcpy(scan
->direct_scan
[0].ssid
,
6555 priv
->direct_ssid
, priv
->direct_ssid_len
);
6557 } else if (!iwl3945_is_associated(priv
) && priv
->essid_len
) {
6558 scan
->direct_scan
[0].id
= WLAN_EID_SSID
;
6559 scan
->direct_scan
[0].len
= priv
->essid_len
;
6560 memcpy(scan
->direct_scan
[0].ssid
, priv
->essid
, priv
->essid_len
);
6565 /* We don't build a direct scan probe request; the uCode will do
6566 * that based on the direct_mask added to each channel entry */
6567 scan
->tx_cmd
.len
= cpu_to_le16(
6568 iwl3945_fill_probe_req(priv
, (struct ieee80211_mgmt
*)scan
->data
,
6569 IWL_MAX_SCAN_SIZE
- sizeof(*scan
), 0));
6570 scan
->tx_cmd
.tx_flags
= TX_CMD_FLG_SEQ_CTL_MSK
;
6571 scan
->tx_cmd
.sta_id
= priv
->hw_setting
.bcast_sta_id
;
6572 scan
->tx_cmd
.stop_time
.life_time
= TX_CMD_LIFE_TIME_INFINITE
;
6574 /* flags + rate selection */
6576 switch (priv
->scan_bands
) {
6578 scan
->flags
= RXON_FLG_BAND_24G_MSK
| RXON_FLG_AUTO_DETECT_MSK
;
6579 scan
->tx_cmd
.rate
= IWL_RATE_1M_PLCP
;
6580 scan
->good_CRC_th
= 0;
6581 band
= IEEE80211_BAND_2GHZ
;
6585 scan
->tx_cmd
.rate
= IWL_RATE_6M_PLCP
;
6586 scan
->good_CRC_th
= IWL_GOOD_CRC_TH
;
6587 band
= IEEE80211_BAND_5GHZ
;
6591 IWL_WARNING("Invalid scan band count\n");
6595 /* select Rx antennas */
6596 scan
->flags
|= iwl3945_get_antenna_flags(priv
);
6598 if (priv
->iw_mode
== IEEE80211_IF_TYPE_MNTR
)
6599 scan
->filter_flags
= RXON_FILTER_PROMISC_MSK
;
6603 ("Initiating direct scan for %s.\n",
6604 iwl3945_escape_essid(priv
->essid
, priv
->essid_len
));
6606 IWL_DEBUG_SCAN("Initiating indirect scan.\n");
6608 scan
->channel_count
=
6609 iwl3945_get_channels_for_scan(
6610 priv
, band
, 1, /* active */
6612 (void *)&scan
->data
[le16_to_cpu(scan
->tx_cmd
.len
)]);
6614 cmd
.len
+= le16_to_cpu(scan
->tx_cmd
.len
) +
6615 scan
->channel_count
* sizeof(struct iwl3945_scan_channel
);
6617 scan
->len
= cpu_to_le16(cmd
.len
);
6619 set_bit(STATUS_SCAN_HW
, &priv
->status
);
6620 rc
= iwl3945_send_cmd_sync(priv
, &cmd
);
6624 queue_delayed_work(priv
->workqueue
, &priv
->scan_check
,
6625 IWL_SCAN_CHECK_WATCHDOG
);
6627 mutex_unlock(&priv
->mutex
);
6631 /* inform mac80211 scan aborted */
6632 queue_work(priv
->workqueue
, &priv
->scan_completed
);
6633 mutex_unlock(&priv
->mutex
);
6636 static void iwl3945_bg_up(struct work_struct
*data
)
6638 struct iwl3945_priv
*priv
= container_of(data
, struct iwl3945_priv
, up
);
6640 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6643 mutex_lock(&priv
->mutex
);
6645 mutex_unlock(&priv
->mutex
);
6648 static void iwl3945_bg_restart(struct work_struct
*data
)
6650 struct iwl3945_priv
*priv
= container_of(data
, struct iwl3945_priv
, restart
);
6652 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6656 queue_work(priv
->workqueue
, &priv
->up
);
6659 static void iwl3945_bg_rx_replenish(struct work_struct
*data
)
6661 struct iwl3945_priv
*priv
=
6662 container_of(data
, struct iwl3945_priv
, rx_replenish
);
6664 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6667 mutex_lock(&priv
->mutex
);
6668 iwl3945_rx_replenish(priv
);
6669 mutex_unlock(&priv
->mutex
);
6672 #define IWL_DELAY_NEXT_SCAN (HZ*2)
6674 static void iwl3945_bg_post_associate(struct work_struct
*data
)
6676 struct iwl3945_priv
*priv
= container_of(data
, struct iwl3945_priv
,
6677 post_associate
.work
);
6680 struct ieee80211_conf
*conf
= NULL
;
6681 DECLARE_MAC_BUF(mac
);
6683 if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) {
6684 IWL_ERROR("%s Should not be called in AP mode\n", __FUNCTION__
);
6689 IWL_DEBUG_ASSOC("Associated as %d to: %s\n",
6691 print_mac(mac
, priv
->active_rxon
.bssid_addr
));
6693 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6696 mutex_lock(&priv
->mutex
);
6698 if (!priv
->vif
|| !priv
->is_open
) {
6699 mutex_unlock(&priv
->mutex
);
6702 iwl3945_scan_cancel_timeout(priv
, 200);
6704 conf
= ieee80211_get_hw_conf(priv
->hw
);
6706 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
6707 iwl3945_commit_rxon(priv
);
6709 memset(&priv
->rxon_timing
, 0, sizeof(struct iwl3945_rxon_time_cmd
));
6710 iwl3945_setup_rxon_timing(priv
);
6711 rc
= iwl3945_send_cmd_pdu(priv
, REPLY_RXON_TIMING
,
6712 sizeof(priv
->rxon_timing
), &priv
->rxon_timing
);
6714 IWL_WARNING("REPLY_RXON_TIMING failed - "
6715 "Attempting to continue.\n");
6717 priv
->staging_rxon
.filter_flags
|= RXON_FILTER_ASSOC_MSK
;
6719 priv
->staging_rxon
.assoc_id
= cpu_to_le16(priv
->assoc_id
);
6721 IWL_DEBUG_ASSOC("assoc id %d beacon interval %d\n",
6722 priv
->assoc_id
, priv
->beacon_int
);
6724 if (priv
->assoc_capability
& WLAN_CAPABILITY_SHORT_PREAMBLE
)
6725 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_PREAMBLE_MSK
;
6727 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_PREAMBLE_MSK
;
6729 if (priv
->staging_rxon
.flags
& RXON_FLG_BAND_24G_MSK
) {
6730 if (priv
->assoc_capability
& WLAN_CAPABILITY_SHORT_SLOT_TIME
)
6731 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_SLOT_MSK
;
6733 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_SLOT_MSK
;
6735 if (priv
->iw_mode
== IEEE80211_IF_TYPE_IBSS
)
6736 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_SLOT_MSK
;
6740 iwl3945_commit_rxon(priv
);
6742 switch (priv
->iw_mode
) {
6743 case IEEE80211_IF_TYPE_STA
:
6744 iwl3945_rate_scale_init(priv
->hw
, IWL_AP_ID
);
6747 case IEEE80211_IF_TYPE_IBSS
:
6749 /* clear out the station table */
6750 iwl3945_clear_stations_table(priv
);
6752 iwl3945_add_station(priv
, iwl3945_broadcast_addr
, 0, 0);
6753 iwl3945_add_station(priv
, priv
->bssid
, 0, 0);
6754 iwl3945_sync_sta(priv
, IWL_STA_ID
,
6755 (priv
->band
== IEEE80211_BAND_5GHZ
) ?
6756 IWL_RATE_6M_PLCP
: IWL_RATE_1M_PLCP
,
6758 iwl3945_rate_scale_init(priv
->hw
, IWL_STA_ID
);
6759 iwl3945_send_beacon_cmd(priv
);
6764 IWL_ERROR("%s Should not be called in %d mode\n",
6765 __FUNCTION__
, priv
->iw_mode
);
6769 iwl3945_sequence_reset(priv
);
6771 iwl3945_activate_qos(priv
, 0);
6773 /* we have just associated, don't start scan too early */
6774 priv
->next_scan_jiffies
= jiffies
+ IWL_DELAY_NEXT_SCAN
;
6775 mutex_unlock(&priv
->mutex
);
6778 static void iwl3945_bg_abort_scan(struct work_struct
*work
)
6780 struct iwl3945_priv
*priv
= container_of(work
, struct iwl3945_priv
, abort_scan
);
6782 if (!iwl3945_is_ready(priv
))
6785 mutex_lock(&priv
->mutex
);
6787 set_bit(STATUS_SCAN_ABORTING
, &priv
->status
);
6788 iwl3945_send_scan_abort(priv
);
6790 mutex_unlock(&priv
->mutex
);
6793 static int iwl3945_mac_config(struct ieee80211_hw
*hw
, struct ieee80211_conf
*conf
);
6795 static void iwl3945_bg_scan_completed(struct work_struct
*work
)
6797 struct iwl3945_priv
*priv
=
6798 container_of(work
, struct iwl3945_priv
, scan_completed
);
6800 IWL_DEBUG(IWL_DL_INFO
| IWL_DL_SCAN
, "SCAN complete scan\n");
6802 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6805 if (test_bit(STATUS_CONF_PENDING
, &priv
->status
))
6806 iwl3945_mac_config(priv
->hw
, ieee80211_get_hw_conf(priv
->hw
));
6808 ieee80211_scan_completed(priv
->hw
);
6810 /* Since setting the TXPOWER may have been deferred while
6811 * performing the scan, fire one off */
6812 mutex_lock(&priv
->mutex
);
6813 iwl3945_hw_reg_send_txpower(priv
);
6814 mutex_unlock(&priv
->mutex
);
6817 /*****************************************************************************
6819 * mac80211 entry point functions
6821 *****************************************************************************/
6823 #define UCODE_READY_TIMEOUT (2 * HZ)
6825 static int iwl3945_mac_start(struct ieee80211_hw
*hw
)
6827 struct iwl3945_priv
*priv
= hw
->priv
;
6830 IWL_DEBUG_MAC80211("enter\n");
6832 if (pci_enable_device(priv
->pci_dev
)) {
6833 IWL_ERROR("Fail to pci_enable_device\n");
6836 pci_restore_state(priv
->pci_dev
);
6837 pci_enable_msi(priv
->pci_dev
);
6839 ret
= request_irq(priv
->pci_dev
->irq
, iwl3945_isr
, IRQF_SHARED
,
6842 IWL_ERROR("Error allocating IRQ %d\n", priv
->pci_dev
->irq
);
6843 goto out_disable_msi
;
6846 /* we should be verifying the device is ready to be opened */
6847 mutex_lock(&priv
->mutex
);
6849 memset(&priv
->staging_rxon
, 0, sizeof(struct iwl3945_rxon_cmd
));
6850 /* fetch ucode file from disk, alloc and copy to bus-master buffers ...
6851 * ucode filename and max sizes are card-specific. */
6853 if (!priv
->ucode_code
.len
) {
6854 ret
= iwl3945_read_ucode(priv
);
6856 IWL_ERROR("Could not read microcode: %d\n", ret
);
6857 mutex_unlock(&priv
->mutex
);
6858 goto out_release_irq
;
6862 ret
= __iwl3945_up(priv
);
6864 mutex_unlock(&priv
->mutex
);
6867 goto out_release_irq
;
6869 IWL_DEBUG_INFO("Start UP work.\n");
6871 if (test_bit(STATUS_IN_SUSPEND
, &priv
->status
))
6874 /* Wait for START_ALIVE from ucode. Otherwise callbacks from
6875 * mac80211 will not be run successfully. */
6876 ret
= wait_event_interruptible_timeout(priv
->wait_command_queue
,
6877 test_bit(STATUS_READY
, &priv
->status
),
6878 UCODE_READY_TIMEOUT
);
6880 if (!test_bit(STATUS_READY
, &priv
->status
)) {
6881 IWL_ERROR("Wait for START_ALIVE timeout after %dms.\n",
6882 jiffies_to_msecs(UCODE_READY_TIMEOUT
));
6884 goto out_release_irq
;
6889 IWL_DEBUG_MAC80211("leave\n");
6893 free_irq(priv
->pci_dev
->irq
, priv
);
6895 pci_disable_msi(priv
->pci_dev
);
6896 pci_disable_device(priv
->pci_dev
);
6898 IWL_DEBUG_MAC80211("leave - failed\n");
6902 static void iwl3945_mac_stop(struct ieee80211_hw
*hw
)
6904 struct iwl3945_priv
*priv
= hw
->priv
;
6906 IWL_DEBUG_MAC80211("enter\n");
6908 if (!priv
->is_open
) {
6909 IWL_DEBUG_MAC80211("leave - skip\n");
6915 if (iwl3945_is_ready_rf(priv
)) {
6916 /* stop mac, cancel any scan request and clear
6917 * RXON_FILTER_ASSOC_MSK BIT
6919 mutex_lock(&priv
->mutex
);
6920 iwl3945_scan_cancel_timeout(priv
, 100);
6921 cancel_delayed_work(&priv
->post_associate
);
6922 mutex_unlock(&priv
->mutex
);
6927 flush_workqueue(priv
->workqueue
);
6928 free_irq(priv
->pci_dev
->irq
, priv
);
6929 pci_disable_msi(priv
->pci_dev
);
6930 pci_save_state(priv
->pci_dev
);
6931 pci_disable_device(priv
->pci_dev
);
6933 IWL_DEBUG_MAC80211("leave\n");
6936 static int iwl3945_mac_tx(struct ieee80211_hw
*hw
, struct sk_buff
*skb
,
6937 struct ieee80211_tx_control
*ctl
)
6939 struct iwl3945_priv
*priv
= hw
->priv
;
6941 IWL_DEBUG_MAC80211("enter\n");
6943 if (priv
->iw_mode
== IEEE80211_IF_TYPE_MNTR
) {
6944 IWL_DEBUG_MAC80211("leave - monitor\n");
6948 IWL_DEBUG_TX("dev->xmit(%d bytes) at rate 0x%02x\n", skb
->len
,
6949 ctl
->tx_rate
->bitrate
);
6951 if (iwl3945_tx_skb(priv
, skb
, ctl
))
6952 dev_kfree_skb_any(skb
);
6954 IWL_DEBUG_MAC80211("leave\n");
6958 static int iwl3945_mac_add_interface(struct ieee80211_hw
*hw
,
6959 struct ieee80211_if_init_conf
*conf
)
6961 struct iwl3945_priv
*priv
= hw
->priv
;
6962 unsigned long flags
;
6963 DECLARE_MAC_BUF(mac
);
6965 IWL_DEBUG_MAC80211("enter: type %d\n", conf
->type
);
6968 IWL_DEBUG_MAC80211("leave - vif != NULL\n");
6972 spin_lock_irqsave(&priv
->lock
, flags
);
6973 priv
->vif
= conf
->vif
;
6975 spin_unlock_irqrestore(&priv
->lock
, flags
);
6977 mutex_lock(&priv
->mutex
);
6979 if (conf
->mac_addr
) {
6980 IWL_DEBUG_MAC80211("Set: %s\n", print_mac(mac
, conf
->mac_addr
));
6981 memcpy(priv
->mac_addr
, conf
->mac_addr
, ETH_ALEN
);
6984 if (iwl3945_is_ready(priv
))
6985 iwl3945_set_mode(priv
, conf
->type
);
6987 mutex_unlock(&priv
->mutex
);
6989 IWL_DEBUG_MAC80211("leave\n");
6994 * iwl3945_mac_config - mac80211 config callback
6996 * We ignore conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME since it seems to
6997 * be set inappropriately and the driver currently sets the hardware up to
6998 * use it whenever needed.
7000 static int iwl3945_mac_config(struct ieee80211_hw
*hw
, struct ieee80211_conf
*conf
)
7002 struct iwl3945_priv
*priv
= hw
->priv
;
7003 const struct iwl3945_channel_info
*ch_info
;
7004 unsigned long flags
;
7007 mutex_lock(&priv
->mutex
);
7008 IWL_DEBUG_MAC80211("enter to channel %d\n", conf
->channel
->hw_value
);
7010 priv
->add_radiotap
= !!(conf
->flags
& IEEE80211_CONF_RADIOTAP
);
7012 if (!iwl3945_is_ready(priv
)) {
7013 IWL_DEBUG_MAC80211("leave - not ready\n");
7018 if (unlikely(!iwl3945_param_disable_hw_scan
&&
7019 test_bit(STATUS_SCANNING
, &priv
->status
))) {
7020 IWL_DEBUG_MAC80211("leave - scanning\n");
7021 set_bit(STATUS_CONF_PENDING
, &priv
->status
);
7022 mutex_unlock(&priv
->mutex
);
7026 spin_lock_irqsave(&priv
->lock
, flags
);
7028 ch_info
= iwl3945_get_channel_info(priv
, conf
->channel
->band
,
7029 conf
->channel
->hw_value
);
7030 if (!is_channel_valid(ch_info
)) {
7031 IWL_DEBUG_SCAN("Channel %d [%d] is INVALID for this SKU.\n",
7032 conf
->channel
->hw_value
, conf
->channel
->band
);
7033 IWL_DEBUG_MAC80211("leave - invalid channel\n");
7034 spin_unlock_irqrestore(&priv
->lock
, flags
);
7039 iwl3945_set_rxon_channel(priv
, conf
->channel
->band
, conf
->channel
->hw_value
);
7041 iwl3945_set_flags_for_phymode(priv
, conf
->channel
->band
);
7043 /* The list of supported rates and rate mask can be different
7044 * for each phymode; since the phymode may have changed, reset
7045 * the rate mask to what mac80211 lists */
7046 iwl3945_set_rate(priv
);
7048 spin_unlock_irqrestore(&priv
->lock
, flags
);
7050 #ifdef IEEE80211_CONF_CHANNEL_SWITCH
7051 if (conf
->flags
& IEEE80211_CONF_CHANNEL_SWITCH
) {
7052 iwl3945_hw_channel_switch(priv
, conf
->channel
);
7057 iwl3945_radio_kill_sw(priv
, !conf
->radio_enabled
);
7059 if (!conf
->radio_enabled
) {
7060 IWL_DEBUG_MAC80211("leave - radio disabled\n");
7064 if (iwl3945_is_rfkill(priv
)) {
7065 IWL_DEBUG_MAC80211("leave - RF kill\n");
7070 iwl3945_set_rate(priv
);
7072 if (memcmp(&priv
->active_rxon
,
7073 &priv
->staging_rxon
, sizeof(priv
->staging_rxon
)))
7074 iwl3945_commit_rxon(priv
);
7076 IWL_DEBUG_INFO("No re-sending same RXON configuration.\n");
7078 IWL_DEBUG_MAC80211("leave\n");
7081 clear_bit(STATUS_CONF_PENDING
, &priv
->status
);
7082 mutex_unlock(&priv
->mutex
);
7086 static void iwl3945_config_ap(struct iwl3945_priv
*priv
)
7090 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
7093 /* The following should be done only at AP bring up */
7094 if ((priv
->active_rxon
.filter_flags
& RXON_FILTER_ASSOC_MSK
) == 0) {
7096 /* RXON - unassoc (to set timing command) */
7097 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
7098 iwl3945_commit_rxon(priv
);
7101 memset(&priv
->rxon_timing
, 0, sizeof(struct iwl3945_rxon_time_cmd
));
7102 iwl3945_setup_rxon_timing(priv
);
7103 rc
= iwl3945_send_cmd_pdu(priv
, REPLY_RXON_TIMING
,
7104 sizeof(priv
->rxon_timing
), &priv
->rxon_timing
);
7106 IWL_WARNING("REPLY_RXON_TIMING failed - "
7107 "Attempting to continue.\n");
7109 /* FIXME: what should be the assoc_id for AP? */
7110 priv
->staging_rxon
.assoc_id
= cpu_to_le16(priv
->assoc_id
);
7111 if (priv
->assoc_capability
& WLAN_CAPABILITY_SHORT_PREAMBLE
)
7112 priv
->staging_rxon
.flags
|=
7113 RXON_FLG_SHORT_PREAMBLE_MSK
;
7115 priv
->staging_rxon
.flags
&=
7116 ~RXON_FLG_SHORT_PREAMBLE_MSK
;
7118 if (priv
->staging_rxon
.flags
& RXON_FLG_BAND_24G_MSK
) {
7119 if (priv
->assoc_capability
&
7120 WLAN_CAPABILITY_SHORT_SLOT_TIME
)
7121 priv
->staging_rxon
.flags
|=
7122 RXON_FLG_SHORT_SLOT_MSK
;
7124 priv
->staging_rxon
.flags
&=
7125 ~RXON_FLG_SHORT_SLOT_MSK
;
7127 if (priv
->iw_mode
== IEEE80211_IF_TYPE_IBSS
)
7128 priv
->staging_rxon
.flags
&=
7129 ~RXON_FLG_SHORT_SLOT_MSK
;
7131 /* restore RXON assoc */
7132 priv
->staging_rxon
.filter_flags
|= RXON_FILTER_ASSOC_MSK
;
7133 iwl3945_commit_rxon(priv
);
7134 iwl3945_add_station(priv
, iwl3945_broadcast_addr
, 0, 0);
7136 iwl3945_send_beacon_cmd(priv
);
7138 /* FIXME - we need to add code here to detect a totally new
7139 * configuration, reset the AP, unassoc, rxon timing, assoc,
7140 * clear sta table, add BCAST sta... */
7143 static int iwl3945_mac_config_interface(struct ieee80211_hw
*hw
,
7144 struct ieee80211_vif
*vif
,
7145 struct ieee80211_if_conf
*conf
)
7147 struct iwl3945_priv
*priv
= hw
->priv
;
7148 DECLARE_MAC_BUF(mac
);
7149 unsigned long flags
;
7155 /* XXX: this MUST use conf->mac_addr */
7157 if ((priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) &&
7158 (!conf
->beacon
|| !conf
->ssid_len
)) {
7160 ("Leaving in AP mode because HostAPD is not ready.\n");
7164 if (!iwl3945_is_alive(priv
))
7167 mutex_lock(&priv
->mutex
);
7170 IWL_DEBUG_MAC80211("bssid: %s\n",
7171 print_mac(mac
, conf
->bssid
));
7174 * very dubious code was here; the probe filtering flag is never set:
7176 if (unlikely(test_bit(STATUS_SCANNING, &priv->status)) &&
7177 !(priv->hw->flags & IEEE80211_HW_NO_PROBE_FILTERING)) {
7179 if (unlikely(test_bit(STATUS_SCANNING
, &priv
->status
))) {
7180 IWL_DEBUG_MAC80211("leave - scanning\n");
7181 mutex_unlock(&priv
->mutex
);
7185 if (priv
->vif
!= vif
) {
7186 IWL_DEBUG_MAC80211("leave - priv->vif != vif\n");
7187 mutex_unlock(&priv
->mutex
);
7191 if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) {
7193 conf
->bssid
= priv
->mac_addr
;
7194 memcpy(priv
->bssid
, priv
->mac_addr
, ETH_ALEN
);
7195 IWL_DEBUG_MAC80211("bssid was set to: %s\n",
7196 print_mac(mac
, conf
->bssid
));
7198 if (priv
->ibss_beacon
)
7199 dev_kfree_skb(priv
->ibss_beacon
);
7201 priv
->ibss_beacon
= conf
->beacon
;
7204 if (iwl3945_is_rfkill(priv
))
7207 if (conf
->bssid
&& !is_zero_ether_addr(conf
->bssid
) &&
7208 !is_multicast_ether_addr(conf
->bssid
)) {
7209 /* If there is currently a HW scan going on in the background
7210 * then we need to cancel it else the RXON below will fail. */
7211 if (iwl3945_scan_cancel_timeout(priv
, 100)) {
7212 IWL_WARNING("Aborted scan still in progress "
7214 IWL_DEBUG_MAC80211("leaving - scan abort failed.\n");
7215 mutex_unlock(&priv
->mutex
);
7218 memcpy(priv
->staging_rxon
.bssid_addr
, conf
->bssid
, ETH_ALEN
);
7220 /* TODO: Audit driver for usage of these members and see
7221 * if mac80211 deprecates them (priv->bssid looks like it
7222 * shouldn't be there, but I haven't scanned the IBSS code
7223 * to verify) - jpk */
7224 memcpy(priv
->bssid
, conf
->bssid
, ETH_ALEN
);
7226 if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
)
7227 iwl3945_config_ap(priv
);
7229 rc
= iwl3945_commit_rxon(priv
);
7230 if ((priv
->iw_mode
== IEEE80211_IF_TYPE_STA
) && rc
)
7231 iwl3945_add_station(priv
,
7232 priv
->active_rxon
.bssid_addr
, 1, 0);
7236 iwl3945_scan_cancel_timeout(priv
, 100);
7237 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
7238 iwl3945_commit_rxon(priv
);
7242 spin_lock_irqsave(&priv
->lock
, flags
);
7243 if (!conf
->ssid_len
)
7244 memset(priv
->essid
, 0, IW_ESSID_MAX_SIZE
);
7246 memcpy(priv
->essid
, conf
->ssid
, conf
->ssid_len
);
7248 priv
->essid_len
= conf
->ssid_len
;
7249 spin_unlock_irqrestore(&priv
->lock
, flags
);
7251 IWL_DEBUG_MAC80211("leave\n");
7252 mutex_unlock(&priv
->mutex
);
7257 static void iwl3945_configure_filter(struct ieee80211_hw
*hw
,
7258 unsigned int changed_flags
,
7259 unsigned int *total_flags
,
7260 int mc_count
, struct dev_addr_list
*mc_list
)
7264 * see also iwl3945_connection_init_rx_config
7269 static void iwl3945_mac_remove_interface(struct ieee80211_hw
*hw
,
7270 struct ieee80211_if_init_conf
*conf
)
7272 struct iwl3945_priv
*priv
= hw
->priv
;
7274 IWL_DEBUG_MAC80211("enter\n");
7276 mutex_lock(&priv
->mutex
);
7278 if (iwl3945_is_ready_rf(priv
)) {
7279 iwl3945_scan_cancel_timeout(priv
, 100);
7280 cancel_delayed_work(&priv
->post_associate
);
7281 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
7282 iwl3945_commit_rxon(priv
);
7284 if (priv
->vif
== conf
->vif
) {
7286 memset(priv
->bssid
, 0, ETH_ALEN
);
7287 memset(priv
->essid
, 0, IW_ESSID_MAX_SIZE
);
7288 priv
->essid_len
= 0;
7290 mutex_unlock(&priv
->mutex
);
7292 IWL_DEBUG_MAC80211("leave\n");
7295 static int iwl3945_mac_hw_scan(struct ieee80211_hw
*hw
, u8
*ssid
, size_t len
)
7298 unsigned long flags
;
7299 struct iwl3945_priv
*priv
= hw
->priv
;
7301 IWL_DEBUG_MAC80211("enter\n");
7303 mutex_lock(&priv
->mutex
);
7304 spin_lock_irqsave(&priv
->lock
, flags
);
7306 if (!iwl3945_is_ready_rf(priv
)) {
7308 IWL_DEBUG_MAC80211("leave - not ready or exit pending\n");
7312 if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) { /* APs don't scan */
7314 IWL_ERROR("ERROR: APs don't scan\n");
7318 /* we don't schedule scan within next_scan_jiffies period */
7319 if (priv
->next_scan_jiffies
&&
7320 time_after(priv
->next_scan_jiffies
, jiffies
)) {
7324 /* if we just finished scan ask for delay */
7325 if (priv
->last_scan_jiffies
&& time_after(priv
->last_scan_jiffies
+
7326 IWL_DELAY_NEXT_SCAN
, jiffies
)) {
7331 IWL_DEBUG_SCAN("direct scan for %s [%d]\n ",
7332 iwl3945_escape_essid(ssid
, len
), (int)len
);
7334 priv
->one_direct_scan
= 1;
7335 priv
->direct_ssid_len
= (u8
)
7336 min((u8
) len
, (u8
) IW_ESSID_MAX_SIZE
);
7337 memcpy(priv
->direct_ssid
, ssid
, priv
->direct_ssid_len
);
7339 priv
->one_direct_scan
= 0;
7341 rc
= iwl3945_scan_initiate(priv
);
7343 IWL_DEBUG_MAC80211("leave\n");
7346 spin_unlock_irqrestore(&priv
->lock
, flags
);
7347 mutex_unlock(&priv
->mutex
);
7352 static int iwl3945_mac_set_key(struct ieee80211_hw
*hw
, enum set_key_cmd cmd
,
7353 const u8
*local_addr
, const u8
*addr
,
7354 struct ieee80211_key_conf
*key
)
7356 struct iwl3945_priv
*priv
= hw
->priv
;
7360 IWL_DEBUG_MAC80211("enter\n");
7362 if (!iwl3945_param_hwcrypto
) {
7363 IWL_DEBUG_MAC80211("leave - hwcrypto disabled\n");
7367 if (is_zero_ether_addr(addr
))
7368 /* only support pairwise keys */
7371 sta_id
= iwl3945_hw_find_station(priv
, addr
);
7372 if (sta_id
== IWL_INVALID_STATION
) {
7373 DECLARE_MAC_BUF(mac
);
7375 IWL_DEBUG_MAC80211("leave - %s not in station map.\n",
7376 print_mac(mac
, addr
));
7380 mutex_lock(&priv
->mutex
);
7382 iwl3945_scan_cancel_timeout(priv
, 100);
7386 rc
= iwl3945_update_sta_key_info(priv
, key
, sta_id
);
7388 iwl3945_set_rxon_hwcrypto(priv
, 1);
7389 iwl3945_commit_rxon(priv
);
7390 key
->hw_key_idx
= sta_id
;
7391 IWL_DEBUG_MAC80211("set_key success, using hwcrypto\n");
7392 key
->flags
|= IEEE80211_KEY_FLAG_GENERATE_IV
;
7396 rc
= iwl3945_clear_sta_key_info(priv
, sta_id
);
7398 iwl3945_set_rxon_hwcrypto(priv
, 0);
7399 iwl3945_commit_rxon(priv
);
7400 IWL_DEBUG_MAC80211("disable hwcrypto key\n");
7407 IWL_DEBUG_MAC80211("leave\n");
7408 mutex_unlock(&priv
->mutex
);
7413 static int iwl3945_mac_conf_tx(struct ieee80211_hw
*hw
, int queue
,
7414 const struct ieee80211_tx_queue_params
*params
)
7416 struct iwl3945_priv
*priv
= hw
->priv
;
7417 unsigned long flags
;
7420 IWL_DEBUG_MAC80211("enter\n");
7422 if (!iwl3945_is_ready_rf(priv
)) {
7423 IWL_DEBUG_MAC80211("leave - RF not ready\n");
7427 if (queue
>= AC_NUM
) {
7428 IWL_DEBUG_MAC80211("leave - queue >= AC_NUM %d\n", queue
);
7432 if (!priv
->qos_data
.qos_enable
) {
7433 priv
->qos_data
.qos_active
= 0;
7434 IWL_DEBUG_MAC80211("leave - qos not enabled\n");
7437 q
= AC_NUM
- 1 - queue
;
7439 spin_lock_irqsave(&priv
->lock
, flags
);
7441 priv
->qos_data
.def_qos_parm
.ac
[q
].cw_min
= cpu_to_le16(params
->cw_min
);
7442 priv
->qos_data
.def_qos_parm
.ac
[q
].cw_max
= cpu_to_le16(params
->cw_max
);
7443 priv
->qos_data
.def_qos_parm
.ac
[q
].aifsn
= params
->aifs
;
7444 priv
->qos_data
.def_qos_parm
.ac
[q
].edca_txop
=
7445 cpu_to_le16((params
->txop
* 32));
7447 priv
->qos_data
.def_qos_parm
.ac
[q
].reserved1
= 0;
7448 priv
->qos_data
.qos_active
= 1;
7450 spin_unlock_irqrestore(&priv
->lock
, flags
);
7452 mutex_lock(&priv
->mutex
);
7453 if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
)
7454 iwl3945_activate_qos(priv
, 1);
7455 else if (priv
->assoc_id
&& iwl3945_is_associated(priv
))
7456 iwl3945_activate_qos(priv
, 0);
7458 mutex_unlock(&priv
->mutex
);
7460 IWL_DEBUG_MAC80211("leave\n");
7464 static int iwl3945_mac_get_tx_stats(struct ieee80211_hw
*hw
,
7465 struct ieee80211_tx_queue_stats
*stats
)
7467 struct iwl3945_priv
*priv
= hw
->priv
;
7469 struct iwl3945_tx_queue
*txq
;
7470 struct iwl3945_queue
*q
;
7471 unsigned long flags
;
7473 IWL_DEBUG_MAC80211("enter\n");
7475 if (!iwl3945_is_ready_rf(priv
)) {
7476 IWL_DEBUG_MAC80211("leave - RF not ready\n");
7480 spin_lock_irqsave(&priv
->lock
, flags
);
7482 for (i
= 0; i
< AC_NUM
; i
++) {
7483 txq
= &priv
->txq
[i
];
7485 avail
= iwl3945_queue_space(q
);
7487 stats
->data
[i
].len
= q
->n_window
- avail
;
7488 stats
->data
[i
].limit
= q
->n_window
- q
->high_mark
;
7489 stats
->data
[i
].count
= q
->n_window
;
7492 spin_unlock_irqrestore(&priv
->lock
, flags
);
7494 IWL_DEBUG_MAC80211("leave\n");
7499 static int iwl3945_mac_get_stats(struct ieee80211_hw
*hw
,
7500 struct ieee80211_low_level_stats
*stats
)
7502 IWL_DEBUG_MAC80211("enter\n");
7503 IWL_DEBUG_MAC80211("leave\n");
7508 static u64
iwl3945_mac_get_tsf(struct ieee80211_hw
*hw
)
7510 IWL_DEBUG_MAC80211("enter\n");
7511 IWL_DEBUG_MAC80211("leave\n");
7516 static void iwl3945_mac_reset_tsf(struct ieee80211_hw
*hw
)
7518 struct iwl3945_priv
*priv
= hw
->priv
;
7519 unsigned long flags
;
7521 mutex_lock(&priv
->mutex
);
7522 IWL_DEBUG_MAC80211("enter\n");
7524 iwl3945_reset_qos(priv
);
7526 cancel_delayed_work(&priv
->post_associate
);
7528 spin_lock_irqsave(&priv
->lock
, flags
);
7530 priv
->assoc_capability
= 0;
7531 priv
->call_post_assoc_from_beacon
= 0;
7533 /* new association get rid of ibss beacon skb */
7534 if (priv
->ibss_beacon
)
7535 dev_kfree_skb(priv
->ibss_beacon
);
7537 priv
->ibss_beacon
= NULL
;
7539 priv
->beacon_int
= priv
->hw
->conf
.beacon_int
;
7540 priv
->timestamp1
= 0;
7541 priv
->timestamp0
= 0;
7542 if ((priv
->iw_mode
== IEEE80211_IF_TYPE_STA
))
7543 priv
->beacon_int
= 0;
7545 spin_unlock_irqrestore(&priv
->lock
, flags
);
7547 if (!iwl3945_is_ready_rf(priv
)) {
7548 IWL_DEBUG_MAC80211("leave - not ready\n");
7549 mutex_unlock(&priv
->mutex
);
7553 /* we are restarting association process
7554 * clear RXON_FILTER_ASSOC_MSK bit
7556 if (priv
->iw_mode
!= IEEE80211_IF_TYPE_AP
) {
7557 iwl3945_scan_cancel_timeout(priv
, 100);
7558 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
7559 iwl3945_commit_rxon(priv
);
7562 /* Per mac80211.h: This is only used in IBSS mode... */
7563 if (priv
->iw_mode
!= IEEE80211_IF_TYPE_IBSS
) {
7565 IWL_DEBUG_MAC80211("leave - not in IBSS\n");
7566 mutex_unlock(&priv
->mutex
);
7570 priv
->only_active_channel
= 0;
7572 iwl3945_set_rate(priv
);
7574 mutex_unlock(&priv
->mutex
);
7576 IWL_DEBUG_MAC80211("leave\n");
7580 static int iwl3945_mac_beacon_update(struct ieee80211_hw
*hw
, struct sk_buff
*skb
,
7581 struct ieee80211_tx_control
*control
)
7583 struct iwl3945_priv
*priv
= hw
->priv
;
7584 unsigned long flags
;
7586 mutex_lock(&priv
->mutex
);
7587 IWL_DEBUG_MAC80211("enter\n");
7589 if (!iwl3945_is_ready_rf(priv
)) {
7590 IWL_DEBUG_MAC80211("leave - RF not ready\n");
7591 mutex_unlock(&priv
->mutex
);
7595 if (priv
->iw_mode
!= IEEE80211_IF_TYPE_IBSS
) {
7596 IWL_DEBUG_MAC80211("leave - not IBSS\n");
7597 mutex_unlock(&priv
->mutex
);
7601 spin_lock_irqsave(&priv
->lock
, flags
);
7603 if (priv
->ibss_beacon
)
7604 dev_kfree_skb(priv
->ibss_beacon
);
7606 priv
->ibss_beacon
= skb
;
7610 IWL_DEBUG_MAC80211("leave\n");
7611 spin_unlock_irqrestore(&priv
->lock
, flags
);
7613 iwl3945_reset_qos(priv
);
7615 queue_work(priv
->workqueue
, &priv
->post_associate
.work
);
7617 mutex_unlock(&priv
->mutex
);
7622 /*****************************************************************************
7626 *****************************************************************************/
7628 #ifdef CONFIG_IWL3945_DEBUG
7631 * The following adds a new attribute to the sysfs representation
7632 * of this device driver (i.e. a new file in /sys/bus/pci/drivers/iwl/)
7633 * used for controlling the debug level.
7635 * See the level definitions in iwl for details.
7638 static ssize_t
show_debug_level(struct device_driver
*d
, char *buf
)
7640 return sprintf(buf
, "0x%08X\n", iwl3945_debug_level
);
7642 static ssize_t
store_debug_level(struct device_driver
*d
,
7643 const char *buf
, size_t count
)
7645 char *p
= (char *)buf
;
7648 val
= simple_strtoul(p
, &p
, 0);
7650 printk(KERN_INFO DRV_NAME
7651 ": %s is not in hex or decimal form.\n", buf
);
7653 iwl3945_debug_level
= val
;
7655 return strnlen(buf
, count
);
7658 static DRIVER_ATTR(debug_level
, S_IWUSR
| S_IRUGO
,
7659 show_debug_level
, store_debug_level
);
7661 #endif /* CONFIG_IWL3945_DEBUG */
7663 static ssize_t
show_rf_kill(struct device
*d
,
7664 struct device_attribute
*attr
, char *buf
)
7667 * 0 - RF kill not enabled
7668 * 1 - SW based RF kill active (sysfs)
7669 * 2 - HW based RF kill active
7670 * 3 - Both HW and SW based RF kill active
7672 struct iwl3945_priv
*priv
= (struct iwl3945_priv
*)d
->driver_data
;
7673 int val
= (test_bit(STATUS_RF_KILL_SW
, &priv
->status
) ? 0x1 : 0x0) |
7674 (test_bit(STATUS_RF_KILL_HW
, &priv
->status
) ? 0x2 : 0x0);
7676 return sprintf(buf
, "%i\n", val
);
7679 static ssize_t
store_rf_kill(struct device
*d
,
7680 struct device_attribute
*attr
,
7681 const char *buf
, size_t count
)
7683 struct iwl3945_priv
*priv
= (struct iwl3945_priv
*)d
->driver_data
;
7685 mutex_lock(&priv
->mutex
);
7686 iwl3945_radio_kill_sw(priv
, buf
[0] == '1');
7687 mutex_unlock(&priv
->mutex
);
7692 static DEVICE_ATTR(rf_kill
, S_IWUSR
| S_IRUGO
, show_rf_kill
, store_rf_kill
);
7694 static ssize_t
show_temperature(struct device
*d
,
7695 struct device_attribute
*attr
, char *buf
)
7697 struct iwl3945_priv
*priv
= (struct iwl3945_priv
*)d
->driver_data
;
7699 if (!iwl3945_is_alive(priv
))
7702 return sprintf(buf
, "%d\n", iwl3945_hw_get_temperature(priv
));
7705 static DEVICE_ATTR(temperature
, S_IRUGO
, show_temperature
, NULL
);
7707 static ssize_t
show_rs_window(struct device
*d
,
7708 struct device_attribute
*attr
,
7711 struct iwl3945_priv
*priv
= d
->driver_data
;
7712 return iwl3945_fill_rs_info(priv
->hw
, buf
, IWL_AP_ID
);
7714 static DEVICE_ATTR(rs_window
, S_IRUGO
, show_rs_window
, NULL
);
7716 static ssize_t
show_tx_power(struct device
*d
,
7717 struct device_attribute
*attr
, char *buf
)
7719 struct iwl3945_priv
*priv
= (struct iwl3945_priv
*)d
->driver_data
;
7720 return sprintf(buf
, "%d\n", priv
->user_txpower_limit
);
7723 static ssize_t
store_tx_power(struct device
*d
,
7724 struct device_attribute
*attr
,
7725 const char *buf
, size_t count
)
7727 struct iwl3945_priv
*priv
= (struct iwl3945_priv
*)d
->driver_data
;
7728 char *p
= (char *)buf
;
7731 val
= simple_strtoul(p
, &p
, 10);
7733 printk(KERN_INFO DRV_NAME
7734 ": %s is not in decimal form.\n", buf
);
7736 iwl3945_hw_reg_set_txpower(priv
, val
);
7741 static DEVICE_ATTR(tx_power
, S_IWUSR
| S_IRUGO
, show_tx_power
, store_tx_power
);
7743 static ssize_t
show_flags(struct device
*d
,
7744 struct device_attribute
*attr
, char *buf
)
7746 struct iwl3945_priv
*priv
= (struct iwl3945_priv
*)d
->driver_data
;
7748 return sprintf(buf
, "0x%04X\n", priv
->active_rxon
.flags
);
7751 static ssize_t
store_flags(struct device
*d
,
7752 struct device_attribute
*attr
,
7753 const char *buf
, size_t count
)
7755 struct iwl3945_priv
*priv
= (struct iwl3945_priv
*)d
->driver_data
;
7756 u32 flags
= simple_strtoul(buf
, NULL
, 0);
7758 mutex_lock(&priv
->mutex
);
7759 if (le32_to_cpu(priv
->staging_rxon
.flags
) != flags
) {
7760 /* Cancel any currently running scans... */
7761 if (iwl3945_scan_cancel_timeout(priv
, 100))
7762 IWL_WARNING("Could not cancel scan.\n");
7764 IWL_DEBUG_INFO("Committing rxon.flags = 0x%04X\n",
7766 priv
->staging_rxon
.flags
= cpu_to_le32(flags
);
7767 iwl3945_commit_rxon(priv
);
7770 mutex_unlock(&priv
->mutex
);
7775 static DEVICE_ATTR(flags
, S_IWUSR
| S_IRUGO
, show_flags
, store_flags
);
7777 static ssize_t
show_filter_flags(struct device
*d
,
7778 struct device_attribute
*attr
, char *buf
)
7780 struct iwl3945_priv
*priv
= (struct iwl3945_priv
*)d
->driver_data
;
7782 return sprintf(buf
, "0x%04X\n",
7783 le32_to_cpu(priv
->active_rxon
.filter_flags
));
7786 static ssize_t
store_filter_flags(struct device
*d
,
7787 struct device_attribute
*attr
,
7788 const char *buf
, size_t count
)
7790 struct iwl3945_priv
*priv
= (struct iwl3945_priv
*)d
->driver_data
;
7791 u32 filter_flags
= simple_strtoul(buf
, NULL
, 0);
7793 mutex_lock(&priv
->mutex
);
7794 if (le32_to_cpu(priv
->staging_rxon
.filter_flags
) != filter_flags
) {
7795 /* Cancel any currently running scans... */
7796 if (iwl3945_scan_cancel_timeout(priv
, 100))
7797 IWL_WARNING("Could not cancel scan.\n");
7799 IWL_DEBUG_INFO("Committing rxon.filter_flags = "
7800 "0x%04X\n", filter_flags
);
7801 priv
->staging_rxon
.filter_flags
=
7802 cpu_to_le32(filter_flags
);
7803 iwl3945_commit_rxon(priv
);
7806 mutex_unlock(&priv
->mutex
);
7811 static DEVICE_ATTR(filter_flags
, S_IWUSR
| S_IRUGO
, show_filter_flags
,
7812 store_filter_flags
);
7814 #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT
7816 static ssize_t
show_measurement(struct device
*d
,
7817 struct device_attribute
*attr
, char *buf
)
7819 struct iwl3945_priv
*priv
= dev_get_drvdata(d
);
7820 struct iwl3945_spectrum_notification measure_report
;
7821 u32 size
= sizeof(measure_report
), len
= 0, ofs
= 0;
7822 u8
*data
= (u8
*) & measure_report
;
7823 unsigned long flags
;
7825 spin_lock_irqsave(&priv
->lock
, flags
);
7826 if (!(priv
->measurement_status
& MEASUREMENT_READY
)) {
7827 spin_unlock_irqrestore(&priv
->lock
, flags
);
7830 memcpy(&measure_report
, &priv
->measure_report
, size
);
7831 priv
->measurement_status
= 0;
7832 spin_unlock_irqrestore(&priv
->lock
, flags
);
7834 while (size
&& (PAGE_SIZE
- len
)) {
7835 hex_dump_to_buffer(data
+ ofs
, size
, 16, 1, buf
+ len
,
7836 PAGE_SIZE
- len
, 1);
7838 if (PAGE_SIZE
- len
)
7842 size
-= min(size
, 16U);
7848 static ssize_t
store_measurement(struct device
*d
,
7849 struct device_attribute
*attr
,
7850 const char *buf
, size_t count
)
7852 struct iwl3945_priv
*priv
= dev_get_drvdata(d
);
7853 struct ieee80211_measurement_params params
= {
7854 .channel
= le16_to_cpu(priv
->active_rxon
.channel
),
7855 .start_time
= cpu_to_le64(priv
->last_tsf
),
7856 .duration
= cpu_to_le16(1),
7858 u8 type
= IWL_MEASURE_BASIC
;
7864 strncpy(buffer
, buf
, min(sizeof(buffer
), count
));
7865 channel
= simple_strtoul(p
, NULL
, 0);
7867 params
.channel
= channel
;
7870 while (*p
&& *p
!= ' ')
7873 type
= simple_strtoul(p
+ 1, NULL
, 0);
7876 IWL_DEBUG_INFO("Invoking measurement of type %d on "
7877 "channel %d (for '%s')\n", type
, params
.channel
, buf
);
7878 iwl3945_get_measurement(priv
, ¶ms
, type
);
7883 static DEVICE_ATTR(measurement
, S_IRUSR
| S_IWUSR
,
7884 show_measurement
, store_measurement
);
7885 #endif /* CONFIG_IWL3945_SPECTRUM_MEASUREMENT */
7887 static ssize_t
show_rate(struct device
*d
,
7888 struct device_attribute
*attr
, char *buf
)
7890 struct iwl3945_priv
*priv
= dev_get_drvdata(d
);
7891 unsigned long flags
;
7894 spin_lock_irqsave(&priv
->sta_lock
, flags
);
7895 if (priv
->iw_mode
== IEEE80211_IF_TYPE_STA
)
7896 i
= priv
->stations
[IWL_AP_ID
].current_rate
.s
.rate
;
7898 i
= priv
->stations
[IWL_STA_ID
].current_rate
.s
.rate
;
7899 spin_unlock_irqrestore(&priv
->sta_lock
, flags
);
7901 i
= iwl3945_rate_index_from_plcp(i
);
7903 return sprintf(buf
, "0\n");
7905 return sprintf(buf
, "%d%s\n",
7906 (iwl3945_rates
[i
].ieee
>> 1),
7907 (iwl3945_rates
[i
].ieee
& 0x1) ? ".5" : "");
7910 static DEVICE_ATTR(rate
, S_IRUSR
, show_rate
, NULL
);
7912 static ssize_t
store_retry_rate(struct device
*d
,
7913 struct device_attribute
*attr
,
7914 const char *buf
, size_t count
)
7916 struct iwl3945_priv
*priv
= dev_get_drvdata(d
);
7918 priv
->retry_rate
= simple_strtoul(buf
, NULL
, 0);
7919 if (priv
->retry_rate
<= 0)
7920 priv
->retry_rate
= 1;
7925 static ssize_t
show_retry_rate(struct device
*d
,
7926 struct device_attribute
*attr
, char *buf
)
7928 struct iwl3945_priv
*priv
= dev_get_drvdata(d
);
7929 return sprintf(buf
, "%d", priv
->retry_rate
);
7932 static DEVICE_ATTR(retry_rate
, S_IWUSR
| S_IRUSR
, show_retry_rate
,
7935 static ssize_t
store_power_level(struct device
*d
,
7936 struct device_attribute
*attr
,
7937 const char *buf
, size_t count
)
7939 struct iwl3945_priv
*priv
= dev_get_drvdata(d
);
7943 mode
= simple_strtoul(buf
, NULL
, 0);
7944 mutex_lock(&priv
->mutex
);
7946 if (!iwl3945_is_ready(priv
)) {
7951 if ((mode
< 1) || (mode
> IWL_POWER_LIMIT
) || (mode
== IWL_POWER_AC
))
7952 mode
= IWL_POWER_AC
;
7954 mode
|= IWL_POWER_ENABLED
;
7956 if (mode
!= priv
->power_mode
) {
7957 rc
= iwl3945_send_power_mode(priv
, IWL_POWER_LEVEL(mode
));
7959 IWL_DEBUG_MAC80211("failed setting power mode.\n");
7962 priv
->power_mode
= mode
;
7968 mutex_unlock(&priv
->mutex
);
7972 #define MAX_WX_STRING 80
7974 /* Values are in microsecond */
7975 static const s32 timeout_duration
[] = {
7982 static const s32 period_duration
[] = {
7990 static ssize_t
show_power_level(struct device
*d
,
7991 struct device_attribute
*attr
, char *buf
)
7993 struct iwl3945_priv
*priv
= dev_get_drvdata(d
);
7994 int level
= IWL_POWER_LEVEL(priv
->power_mode
);
7997 p
+= sprintf(p
, "%d ", level
);
7999 case IWL_POWER_MODE_CAM
:
8001 p
+= sprintf(p
, "(AC)");
8003 case IWL_POWER_BATTERY
:
8004 p
+= sprintf(p
, "(BATTERY)");
8008 "(Timeout %dms, Period %dms)",
8009 timeout_duration
[level
- 1] / 1000,
8010 period_duration
[level
- 1] / 1000);
8013 if (!(priv
->power_mode
& IWL_POWER_ENABLED
))
8014 p
+= sprintf(p
, " OFF\n");
8016 p
+= sprintf(p
, " \n");
8018 return (p
- buf
+ 1);
8022 static DEVICE_ATTR(power_level
, S_IWUSR
| S_IRUSR
, show_power_level
,
8025 static ssize_t
show_channels(struct device
*d
,
8026 struct device_attribute
*attr
, char *buf
)
8028 /* all this shit doesn't belong into sysfs anyway */
8032 static DEVICE_ATTR(channels
, S_IRUSR
, show_channels
, NULL
);
8034 static ssize_t
show_statistics(struct device
*d
,
8035 struct device_attribute
*attr
, char *buf
)
8037 struct iwl3945_priv
*priv
= dev_get_drvdata(d
);
8038 u32 size
= sizeof(struct iwl3945_notif_statistics
);
8039 u32 len
= 0, ofs
= 0;
8040 u8
*data
= (u8
*) & priv
->statistics
;
8043 if (!iwl3945_is_alive(priv
))
8046 mutex_lock(&priv
->mutex
);
8047 rc
= iwl3945_send_statistics_request(priv
);
8048 mutex_unlock(&priv
->mutex
);
8052 "Error sending statistics request: 0x%08X\n", rc
);
8056 while (size
&& (PAGE_SIZE
- len
)) {
8057 hex_dump_to_buffer(data
+ ofs
, size
, 16, 1, buf
+ len
,
8058 PAGE_SIZE
- len
, 1);
8060 if (PAGE_SIZE
- len
)
8064 size
-= min(size
, 16U);
8070 static DEVICE_ATTR(statistics
, S_IRUGO
, show_statistics
, NULL
);
8072 static ssize_t
show_antenna(struct device
*d
,
8073 struct device_attribute
*attr
, char *buf
)
8075 struct iwl3945_priv
*priv
= dev_get_drvdata(d
);
8077 if (!iwl3945_is_alive(priv
))
8080 return sprintf(buf
, "%d\n", priv
->antenna
);
8083 static ssize_t
store_antenna(struct device
*d
,
8084 struct device_attribute
*attr
,
8085 const char *buf
, size_t count
)
8088 struct iwl3945_priv
*priv
= dev_get_drvdata(d
);
8093 if (sscanf(buf
, "%1i", &ant
) != 1) {
8094 IWL_DEBUG_INFO("not in hex or decimal form.\n");
8098 if ((ant
>= 0) && (ant
<= 2)) {
8099 IWL_DEBUG_INFO("Setting antenna select to %d.\n", ant
);
8100 priv
->antenna
= (enum iwl3945_antenna
)ant
;
8102 IWL_DEBUG_INFO("Bad antenna select value %d.\n", ant
);
8108 static DEVICE_ATTR(antenna
, S_IWUSR
| S_IRUGO
, show_antenna
, store_antenna
);
8110 static ssize_t
show_status(struct device
*d
,
8111 struct device_attribute
*attr
, char *buf
)
8113 struct iwl3945_priv
*priv
= (struct iwl3945_priv
*)d
->driver_data
;
8114 if (!iwl3945_is_alive(priv
))
8116 return sprintf(buf
, "0x%08x\n", (int)priv
->status
);
8119 static DEVICE_ATTR(status
, S_IRUGO
, show_status
, NULL
);
8121 static ssize_t
dump_error_log(struct device
*d
,
8122 struct device_attribute
*attr
,
8123 const char *buf
, size_t count
)
8125 char *p
= (char *)buf
;
8128 iwl3945_dump_nic_error_log((struct iwl3945_priv
*)d
->driver_data
);
8130 return strnlen(buf
, count
);
8133 static DEVICE_ATTR(dump_errors
, S_IWUSR
, NULL
, dump_error_log
);
8135 static ssize_t
dump_event_log(struct device
*d
,
8136 struct device_attribute
*attr
,
8137 const char *buf
, size_t count
)
8139 char *p
= (char *)buf
;
8142 iwl3945_dump_nic_event_log((struct iwl3945_priv
*)d
->driver_data
);
8144 return strnlen(buf
, count
);
8147 static DEVICE_ATTR(dump_events
, S_IWUSR
, NULL
, dump_event_log
);
8149 /*****************************************************************************
8151 * driver setup and teardown
8153 *****************************************************************************/
8155 static void iwl3945_setup_deferred_work(struct iwl3945_priv
*priv
)
8157 priv
->workqueue
= create_workqueue(DRV_NAME
);
8159 init_waitqueue_head(&priv
->wait_command_queue
);
8161 INIT_WORK(&priv
->up
, iwl3945_bg_up
);
8162 INIT_WORK(&priv
->restart
, iwl3945_bg_restart
);
8163 INIT_WORK(&priv
->rx_replenish
, iwl3945_bg_rx_replenish
);
8164 INIT_WORK(&priv
->scan_completed
, iwl3945_bg_scan_completed
);
8165 INIT_WORK(&priv
->request_scan
, iwl3945_bg_request_scan
);
8166 INIT_WORK(&priv
->abort_scan
, iwl3945_bg_abort_scan
);
8167 INIT_WORK(&priv
->rf_kill
, iwl3945_bg_rf_kill
);
8168 INIT_WORK(&priv
->beacon_update
, iwl3945_bg_beacon_update
);
8169 INIT_DELAYED_WORK(&priv
->post_associate
, iwl3945_bg_post_associate
);
8170 INIT_DELAYED_WORK(&priv
->init_alive_start
, iwl3945_bg_init_alive_start
);
8171 INIT_DELAYED_WORK(&priv
->alive_start
, iwl3945_bg_alive_start
);
8172 INIT_DELAYED_WORK(&priv
->scan_check
, iwl3945_bg_scan_check
);
8174 iwl3945_hw_setup_deferred_work(priv
);
8176 tasklet_init(&priv
->irq_tasklet
, (void (*)(unsigned long))
8177 iwl3945_irq_tasklet
, (unsigned long)priv
);
8180 static void iwl3945_cancel_deferred_work(struct iwl3945_priv
*priv
)
8182 iwl3945_hw_cancel_deferred_work(priv
);
8184 cancel_delayed_work_sync(&priv
->init_alive_start
);
8185 cancel_delayed_work(&priv
->scan_check
);
8186 cancel_delayed_work(&priv
->alive_start
);
8187 cancel_delayed_work(&priv
->post_associate
);
8188 cancel_work_sync(&priv
->beacon_update
);
8191 static struct attribute
*iwl3945_sysfs_entries
[] = {
8192 &dev_attr_antenna
.attr
,
8193 &dev_attr_channels
.attr
,
8194 &dev_attr_dump_errors
.attr
,
8195 &dev_attr_dump_events
.attr
,
8196 &dev_attr_flags
.attr
,
8197 &dev_attr_filter_flags
.attr
,
8198 #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT
8199 &dev_attr_measurement
.attr
,
8201 &dev_attr_power_level
.attr
,
8202 &dev_attr_rate
.attr
,
8203 &dev_attr_retry_rate
.attr
,
8204 &dev_attr_rf_kill
.attr
,
8205 &dev_attr_rs_window
.attr
,
8206 &dev_attr_statistics
.attr
,
8207 &dev_attr_status
.attr
,
8208 &dev_attr_temperature
.attr
,
8209 &dev_attr_tx_power
.attr
,
8214 static struct attribute_group iwl3945_attribute_group
= {
8215 .name
= NULL
, /* put in device directory */
8216 .attrs
= iwl3945_sysfs_entries
,
8219 static struct ieee80211_ops iwl3945_hw_ops
= {
8220 .tx
= iwl3945_mac_tx
,
8221 .start
= iwl3945_mac_start
,
8222 .stop
= iwl3945_mac_stop
,
8223 .add_interface
= iwl3945_mac_add_interface
,
8224 .remove_interface
= iwl3945_mac_remove_interface
,
8225 .config
= iwl3945_mac_config
,
8226 .config_interface
= iwl3945_mac_config_interface
,
8227 .configure_filter
= iwl3945_configure_filter
,
8228 .set_key
= iwl3945_mac_set_key
,
8229 .get_stats
= iwl3945_mac_get_stats
,
8230 .get_tx_stats
= iwl3945_mac_get_tx_stats
,
8231 .conf_tx
= iwl3945_mac_conf_tx
,
8232 .get_tsf
= iwl3945_mac_get_tsf
,
8233 .reset_tsf
= iwl3945_mac_reset_tsf
,
8234 .beacon_update
= iwl3945_mac_beacon_update
,
8235 .hw_scan
= iwl3945_mac_hw_scan
8238 static int iwl3945_pci_probe(struct pci_dev
*pdev
, const struct pci_device_id
*ent
)
8242 struct iwl3945_priv
*priv
;
8243 struct ieee80211_hw
*hw
;
8245 DECLARE_MAC_BUF(mac
);
8247 /* Disabling hardware scan means that mac80211 will perform scans
8248 * "the hard way", rather than using device's scan. */
8249 if (iwl3945_param_disable_hw_scan
) {
8250 IWL_DEBUG_INFO("Disabling hw_scan\n");
8251 iwl3945_hw_ops
.hw_scan
= NULL
;
8254 if ((iwl3945_param_queues_num
> IWL_MAX_NUM_QUEUES
) ||
8255 (iwl3945_param_queues_num
< IWL_MIN_NUM_QUEUES
)) {
8256 IWL_ERROR("invalid queues_num, should be between %d and %d\n",
8257 IWL_MIN_NUM_QUEUES
, IWL_MAX_NUM_QUEUES
);
8262 /* mac80211 allocates memory for this device instance, including
8263 * space for this driver's private structure */
8264 hw
= ieee80211_alloc_hw(sizeof(struct iwl3945_priv
), &iwl3945_hw_ops
);
8266 IWL_ERROR("Can not allocate network device\n");
8270 SET_IEEE80211_DEV(hw
, &pdev
->dev
);
8272 hw
->rate_control_algorithm
= "iwl-3945-rs";
8274 IWL_DEBUG_INFO("*** LOAD DRIVER ***\n");
8278 priv
->pci_dev
= pdev
;
8280 /* Select antenna (may be helpful if only one antenna is connected) */
8281 priv
->antenna
= (enum iwl3945_antenna
)iwl3945_param_antenna
;
8282 #ifdef CONFIG_IWL3945_DEBUG
8283 iwl3945_debug_level
= iwl3945_param_debug
;
8284 atomic_set(&priv
->restrict_refcnt
, 0);
8286 priv
->retry_rate
= 1;
8288 priv
->ibss_beacon
= NULL
;
8290 /* Tell mac80211 and its clients (e.g. Wireless Extensions)
8291 * the range of signal quality values that we'll provide.
8292 * Negative values for level/noise indicate that we'll provide dBm.
8293 * For WE, at least, non-0 values here *enable* display of values
8294 * in app (iwconfig). */
8295 hw
->max_rssi
= -20; /* signal level, negative indicates dBm */
8296 hw
->max_noise
= -20; /* noise level, negative indicates dBm */
8297 hw
->max_signal
= 100; /* link quality indication (%) */
8299 /* Tell mac80211 our Tx characteristics */
8300 hw
->flags
= IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE
;
8302 /* 4 EDCA QOS priorities */
8305 spin_lock_init(&priv
->lock
);
8306 spin_lock_init(&priv
->power_data
.lock
);
8307 spin_lock_init(&priv
->sta_lock
);
8308 spin_lock_init(&priv
->hcmd_lock
);
8310 for (i
= 0; i
< IWL_IBSS_MAC_HASH_SIZE
; i
++)
8311 INIT_LIST_HEAD(&priv
->ibss_mac_hash
[i
]);
8313 INIT_LIST_HEAD(&priv
->free_frames
);
8315 mutex_init(&priv
->mutex
);
8316 if (pci_enable_device(pdev
)) {
8318 goto out_ieee80211_free_hw
;
8321 pci_set_master(pdev
);
8323 /* Clear the driver's (not device's) station table */
8324 iwl3945_clear_stations_table(priv
);
8326 priv
->data_retry_limit
= -1;
8327 priv
->ieee_channels
= NULL
;
8328 priv
->ieee_rates
= NULL
;
8329 priv
->band
= IEEE80211_BAND_2GHZ
;
8331 err
= pci_set_dma_mask(pdev
, DMA_32BIT_MASK
);
8333 err
= pci_set_consistent_dma_mask(pdev
, DMA_32BIT_MASK
);
8335 printk(KERN_WARNING DRV_NAME
": No suitable DMA available.\n");
8336 goto out_pci_disable_device
;
8339 pci_set_drvdata(pdev
, priv
);
8340 err
= pci_request_regions(pdev
, DRV_NAME
);
8342 goto out_pci_disable_device
;
8344 /* We disable the RETRY_TIMEOUT register (0x41) to keep
8345 * PCI Tx retries from interfering with C3 CPU state */
8346 pci_write_config_byte(pdev
, 0x41, 0x00);
8348 priv
->hw_base
= pci_iomap(pdev
, 0, 0);
8349 if (!priv
->hw_base
) {
8351 goto out_pci_release_regions
;
8354 IWL_DEBUG_INFO("pci_resource_len = 0x%08llx\n",
8355 (unsigned long long) pci_resource_len(pdev
, 0));
8356 IWL_DEBUG_INFO("pci_resource_base = %p\n", priv
->hw_base
);
8358 /* Initialize module parameter values here */
8360 /* Disable radio (SW RF KILL) via parameter when loading driver */
8361 if (iwl3945_param_disable
) {
8362 set_bit(STATUS_RF_KILL_SW
, &priv
->status
);
8363 IWL_DEBUG_INFO("Radio disabled.\n");
8366 priv
->iw_mode
= IEEE80211_IF_TYPE_STA
;
8369 (priv
->pci_dev
->device
<< 16) | priv
->pci_dev
->subsystem_device
;
8372 case 0x42221005: /* 0x4222 0x8086 0x1005 is BG SKU */
8373 case 0x42221034: /* 0x4222 0x8086 0x1034 is BG SKU */
8374 case 0x42271014: /* 0x4227 0x8086 0x1014 is BG SKU */
8375 case 0x42221044: /* 0x4222 0x8086 0x1044 is BG SKU */
8380 * Rest are assumed ABG SKU -- if this is not the
8381 * case then the card will get the wrong 'Detected'
8382 * line in the kernel log however the code that
8383 * initializes the GEO table will detect no A-band
8384 * channels and remove the is_abg mask.
8391 printk(KERN_INFO DRV_NAME
8392 ": Detected Intel PRO/Wireless 3945%sBG Network Connection\n",
8393 priv
->is_abg
? "A" : "");
8395 /* Device-specific setup */
8396 if (iwl3945_hw_set_hw_setting(priv
)) {
8397 IWL_ERROR("failed to set hw settings\n");
8401 if (iwl3945_param_qos_enable
)
8402 priv
->qos_data
.qos_enable
= 1;
8404 iwl3945_reset_qos(priv
);
8406 priv
->qos_data
.qos_active
= 0;
8407 priv
->qos_data
.qos_cap
.val
= 0;
8409 iwl3945_set_rxon_channel(priv
, IEEE80211_BAND_2GHZ
, 6);
8410 iwl3945_setup_deferred_work(priv
);
8411 iwl3945_setup_rx_handlers(priv
);
8413 priv
->rates_mask
= IWL_RATES_MASK
;
8414 /* If power management is turned on, default to AC mode */
8415 priv
->power_mode
= IWL_POWER_AC
;
8416 priv
->user_txpower_limit
= IWL_DEFAULT_TX_POWER
;
8418 iwl3945_disable_interrupts(priv
);
8420 err
= sysfs_create_group(&pdev
->dev
.kobj
, &iwl3945_attribute_group
);
8422 IWL_ERROR("failed to create sysfs device attributes\n");
8423 goto out_release_irq
;
8427 iwl3945_set_bit(priv
, CSR_GIO_CHICKEN_BITS
,
8428 CSR_GIO_CHICKEN_BITS_REG_BIT_DIS_L0S_EXIT_TIMER
);
8430 iwl3945_set_bit(priv
, CSR_GP_CNTRL
, CSR_GP_CNTRL_REG_FLAG_INIT_DONE
);
8431 err
= iwl3945_poll_bit(priv
, CSR_GP_CNTRL
,
8432 CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY
,
8433 CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY
, 25000);
8435 IWL_DEBUG_INFO("Failed to init the card\n");
8436 goto out_remove_sysfs
;
8438 /* Read the EEPROM */
8439 err
= iwl3945_eeprom_init(priv
);
8441 IWL_ERROR("Unable to init EEPROM\n");
8442 goto out_remove_sysfs
;
8444 /* MAC Address location in EEPROM same for 3945/4965 */
8445 get_eeprom_mac(priv
, priv
->mac_addr
);
8446 IWL_DEBUG_INFO("MAC address: %s\n", print_mac(mac
, priv
->mac_addr
));
8447 SET_IEEE80211_PERM_ADDR(priv
->hw
, priv
->mac_addr
);
8449 err
= iwl3945_init_channel_map(priv
);
8451 IWL_ERROR("initializing regulatory failed: %d\n", err
);
8452 goto out_remove_sysfs
;
8455 err
= iwl3945_init_geos(priv
);
8457 IWL_ERROR("initializing geos failed: %d\n", err
);
8458 goto out_free_channel_map
;
8461 iwl3945_rate_control_register(priv
->hw
);
8462 err
= ieee80211_register_hw(priv
->hw
);
8464 IWL_ERROR("Failed to register network device (error %d)\n", err
);
8468 priv
->hw
->conf
.beacon_int
= 100;
8469 priv
->mac80211_registered
= 1;
8470 pci_save_state(pdev
);
8471 pci_disable_device(pdev
);
8476 iwl3945_free_geos(priv
);
8477 out_free_channel_map
:
8478 iwl3945_free_channel_map(priv
);
8480 sysfs_remove_group(&pdev
->dev
.kobj
, &iwl3945_attribute_group
);
8483 destroy_workqueue(priv
->workqueue
);
8484 priv
->workqueue
= NULL
;
8485 iwl3945_unset_hw_setting(priv
);
8488 pci_iounmap(pdev
, priv
->hw_base
);
8489 out_pci_release_regions
:
8490 pci_release_regions(pdev
);
8491 out_pci_disable_device
:
8492 pci_disable_device(pdev
);
8493 pci_set_drvdata(pdev
, NULL
);
8494 out_ieee80211_free_hw
:
8495 ieee80211_free_hw(priv
->hw
);
8500 static void iwl3945_pci_remove(struct pci_dev
*pdev
)
8502 struct iwl3945_priv
*priv
= pci_get_drvdata(pdev
);
8503 struct list_head
*p
, *q
;
8509 IWL_DEBUG_INFO("*** UNLOAD DRIVER ***\n");
8511 set_bit(STATUS_EXIT_PENDING
, &priv
->status
);
8515 /* Free MAC hash list for ADHOC */
8516 for (i
= 0; i
< IWL_IBSS_MAC_HASH_SIZE
; i
++) {
8517 list_for_each_safe(p
, q
, &priv
->ibss_mac_hash
[i
]) {
8519 kfree(list_entry(p
, struct iwl3945_ibss_seq
, list
));
8523 sysfs_remove_group(&pdev
->dev
.kobj
, &iwl3945_attribute_group
);
8525 iwl3945_dealloc_ucode_pci(priv
);
8528 iwl3945_rx_queue_free(priv
, &priv
->rxq
);
8529 iwl3945_hw_txq_ctx_free(priv
);
8531 iwl3945_unset_hw_setting(priv
);
8532 iwl3945_clear_stations_table(priv
);
8534 if (priv
->mac80211_registered
) {
8535 ieee80211_unregister_hw(priv
->hw
);
8536 iwl3945_rate_control_unregister(priv
->hw
);
8539 /*netif_stop_queue(dev); */
8540 flush_workqueue(priv
->workqueue
);
8542 /* ieee80211_unregister_hw calls iwl3945_mac_stop, which flushes
8543 * priv->workqueue... so we can't take down the workqueue
8545 destroy_workqueue(priv
->workqueue
);
8546 priv
->workqueue
= NULL
;
8548 pci_iounmap(pdev
, priv
->hw_base
);
8549 pci_release_regions(pdev
);
8550 pci_disable_device(pdev
);
8551 pci_set_drvdata(pdev
, NULL
);
8553 iwl3945_free_channel_map(priv
);
8554 iwl3945_free_geos(priv
);
8556 if (priv
->ibss_beacon
)
8557 dev_kfree_skb(priv
->ibss_beacon
);
8559 ieee80211_free_hw(priv
->hw
);
8564 static int iwl3945_pci_suspend(struct pci_dev
*pdev
, pm_message_t state
)
8566 struct iwl3945_priv
*priv
= pci_get_drvdata(pdev
);
8568 if (priv
->is_open
) {
8569 set_bit(STATUS_IN_SUSPEND
, &priv
->status
);
8570 iwl3945_mac_stop(priv
->hw
);
8574 pci_set_power_state(pdev
, PCI_D3hot
);
8579 static int iwl3945_pci_resume(struct pci_dev
*pdev
)
8581 struct iwl3945_priv
*priv
= pci_get_drvdata(pdev
);
8583 pci_set_power_state(pdev
, PCI_D0
);
8586 iwl3945_mac_start(priv
->hw
);
8588 clear_bit(STATUS_IN_SUSPEND
, &priv
->status
);
8592 #endif /* CONFIG_PM */
8594 /*****************************************************************************
8596 * driver and module entry point
8598 *****************************************************************************/
8600 static struct pci_driver iwl3945_driver
= {
8602 .id_table
= iwl3945_hw_card_ids
,
8603 .probe
= iwl3945_pci_probe
,
8604 .remove
= __devexit_p(iwl3945_pci_remove
),
8606 .suspend
= iwl3945_pci_suspend
,
8607 .resume
= iwl3945_pci_resume
,
8611 static int __init
iwl3945_init(void)
8615 printk(KERN_INFO DRV_NAME
": " DRV_DESCRIPTION
", " DRV_VERSION
"\n");
8616 printk(KERN_INFO DRV_NAME
": " DRV_COPYRIGHT
"\n");
8617 ret
= pci_register_driver(&iwl3945_driver
);
8619 IWL_ERROR("Unable to initialize PCI module\n");
8622 #ifdef CONFIG_IWL3945_DEBUG
8623 ret
= driver_create_file(&iwl3945_driver
.driver
, &driver_attr_debug_level
);
8625 IWL_ERROR("Unable to create driver sysfs file\n");
8626 pci_unregister_driver(&iwl3945_driver
);
8634 static void __exit
iwl3945_exit(void)
8636 #ifdef CONFIG_IWL3945_DEBUG
8637 driver_remove_file(&iwl3945_driver
.driver
, &driver_attr_debug_level
);
8639 pci_unregister_driver(&iwl3945_driver
);
8642 module_param_named(antenna
, iwl3945_param_antenna
, int, 0444);
8643 MODULE_PARM_DESC(antenna
, "select antenna (1=Main, 2=Aux, default 0 [both])");
8644 module_param_named(disable
, iwl3945_param_disable
, int, 0444);
8645 MODULE_PARM_DESC(disable
, "manually disable the radio (default 0 [radio on])");
8646 module_param_named(hwcrypto
, iwl3945_param_hwcrypto
, int, 0444);
8647 MODULE_PARM_DESC(hwcrypto
,
8648 "using hardware crypto engine (default 0 [software])\n");
8649 module_param_named(debug
, iwl3945_param_debug
, int, 0444);
8650 MODULE_PARM_DESC(debug
, "debug output mask");
8651 module_param_named(disable_hw_scan
, iwl3945_param_disable_hw_scan
, int, 0444);
8652 MODULE_PARM_DESC(disable_hw_scan
, "disable hardware scanning (default 0)");
8654 module_param_named(queues_num
, iwl3945_param_queues_num
, int, 0444);
8655 MODULE_PARM_DESC(queues_num
, "number of hw queues.");
8658 module_param_named(qos_enable
, iwl3945_param_qos_enable
, int, 0444);
8659 MODULE_PARM_DESC(qos_enable
, "enable all QoS functionality");
8661 module_exit(iwl3945_exit
);
8662 module_init(iwl3945_init
);