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/mac80211.h>
46 #include <asm/div64.h>
49 #include "iwl-helpers.h"
51 #ifdef CONFIG_IWL4965_DEBUG
52 u32 iwl4965_debug_level
;
55 static int iwl4965_tx_queue_update_write_ptr(struct iwl4965_priv
*priv
,
56 struct iwl4965_tx_queue
*txq
);
58 /******************************************************************************
62 ******************************************************************************/
64 /* module parameters */
65 static int iwl4965_param_disable_hw_scan
; /* def: 0 = use 4965's h/w scan */
66 static int iwl4965_param_debug
; /* def: 0 = minimal debug log messages */
67 static int iwl4965_param_disable
; /* def: enable radio */
68 static int iwl4965_param_antenna
; /* def: 0 = both antennas (use diversity) */
69 int iwl4965_param_hwcrypto
; /* def: using software encryption */
70 static int iwl4965_param_qos_enable
= 1; /* def: 1 = use quality of service */
71 int iwl4965_param_queues_num
= IWL_MAX_NUM_QUEUES
; /* def: 16 Tx queues */
72 int iwl4965_param_amsdu_size_8K
; /* def: enable 8K amsdu size */
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 "Intel(R) Wireless WiFi Link 4965AGN driver for Linux"
81 #ifdef CONFIG_IWL4965_DEBUG
87 #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
93 #define IWLWIFI_VERSION "1.2.26k" VD VS
94 #define DRV_COPYRIGHT "Copyright(c) 2003-2007 Intel Corporation"
95 #define DRV_VERSION IWLWIFI_VERSION
97 /* Change firmware file name, using "-" and incrementing number,
98 * *only* when uCode interface or architecture changes so that it
99 * is not compatible with earlier drivers.
100 * This number will also appear in << 8 position of 1st dword of uCode file */
101 #define IWL4965_UCODE_API "-1"
103 MODULE_DESCRIPTION(DRV_DESCRIPTION
);
104 MODULE_VERSION(DRV_VERSION
);
105 MODULE_AUTHOR(DRV_COPYRIGHT
);
106 MODULE_LICENSE("GPL");
108 __le16
*ieee80211_get_qos_ctrl(struct ieee80211_hdr
*hdr
)
110 u16 fc
= le16_to_cpu(hdr
->frame_control
);
111 int hdr_len
= ieee80211_get_hdrlen(fc
);
113 if ((fc
& 0x00cc) == (IEEE80211_STYPE_QOS_DATA
| IEEE80211_FTYPE_DATA
))
114 return (__le16
*) ((u8
*) hdr
+ hdr_len
- QOS_CONTROL_LEN
);
118 static const struct ieee80211_supported_band
*iwl4965_get_hw_mode(
119 struct iwl4965_priv
*priv
, enum ieee80211_band band
)
121 return priv
->hw
->wiphy
->bands
[band
];
124 static int iwl4965_is_empty_essid(const char *essid
, int essid_len
)
126 /* Single white space is for Linksys APs */
127 if (essid_len
== 1 && essid
[0] == ' ')
130 /* Otherwise, if the entire essid is 0, we assume it is hidden */
133 if (essid
[essid_len
] != '\0')
140 static const char *iwl4965_escape_essid(const char *essid
, u8 essid_len
)
142 static char escaped
[IW_ESSID_MAX_SIZE
* 2 + 1];
143 const char *s
= essid
;
146 if (iwl4965_is_empty_essid(essid
, essid_len
)) {
147 memcpy(escaped
, "<hidden>", sizeof("<hidden>"));
151 essid_len
= min(essid_len
, (u8
) IW_ESSID_MAX_SIZE
);
152 while (essid_len
--) {
164 /*************** DMA-QUEUE-GENERAL-FUNCTIONS *****
167 * Theory of operation
169 * A Tx or Rx queue resides in host DRAM, and is comprised of a circular buffer
170 * of buffer descriptors, each of which points to one or more data buffers for
171 * the device to read from or fill. Driver and device exchange status of each
172 * queue via "read" and "write" pointers. Driver keeps minimum of 2 empty
173 * entries in each circular buffer, to protect against confusing empty and full
176 * The device reads or writes the data in the queues via the device's several
177 * DMA/FIFO channels. Each queue is mapped to a single DMA channel.
179 * For Tx queue, there are low mark and high mark limits. If, after queuing
180 * the packet for Tx, free space become < low mark, Tx queue stopped. When
181 * reclaiming packets (on 'tx done IRQ), if free space become > high mark,
184 * The 4965 operates with up to 17 queues: One receive queue, one transmit
185 * queue (#4) for sending commands to the device firmware, and 15 other
186 * Tx queues that may be mapped to prioritized Tx DMA/FIFO channels.
188 * See more detailed info in iwl-4965-hw.h.
189 ***************************************************/
191 int iwl4965_queue_space(const struct iwl4965_queue
*q
)
193 int s
= q
->read_ptr
- q
->write_ptr
;
195 if (q
->read_ptr
> q
->write_ptr
)
200 /* keep some reserve to not confuse empty and full situations */
208 * iwl4965_queue_inc_wrap - increment queue index, wrap back to beginning
209 * @index -- current index
210 * @n_bd -- total number of entries in queue (must be power of 2)
212 static inline int iwl4965_queue_inc_wrap(int index
, int n_bd
)
214 return ++index
& (n_bd
- 1);
218 * iwl4965_queue_dec_wrap - decrement queue index, wrap back to end
219 * @index -- current index
220 * @n_bd -- total number of entries in queue (must be power of 2)
222 static inline int iwl4965_queue_dec_wrap(int index
, int n_bd
)
224 return --index
& (n_bd
- 1);
227 static inline int x2_queue_used(const struct iwl4965_queue
*q
, int i
)
229 return q
->write_ptr
> q
->read_ptr
?
230 (i
>= q
->read_ptr
&& i
< q
->write_ptr
) :
231 !(i
< q
->read_ptr
&& i
>= q
->write_ptr
);
234 static inline u8
get_cmd_index(struct iwl4965_queue
*q
, u32 index
, int is_huge
)
236 /* This is for scan command, the big buffer at end of command array */
238 return q
->n_window
; /* must be power of 2 */
240 /* Otherwise, use normal size buffers */
241 return index
& (q
->n_window
- 1);
245 * iwl4965_queue_init - Initialize queue's high/low-water and read/write indexes
247 static int iwl4965_queue_init(struct iwl4965_priv
*priv
, struct iwl4965_queue
*q
,
248 int count
, int slots_num
, u32 id
)
251 q
->n_window
= slots_num
;
254 /* count must be power-of-two size, otherwise iwl4965_queue_inc_wrap
255 * and iwl4965_queue_dec_wrap are broken. */
256 BUG_ON(!is_power_of_2(count
));
258 /* slots_num must be power-of-two size, otherwise
259 * get_cmd_index is broken. */
260 BUG_ON(!is_power_of_2(slots_num
));
262 q
->low_mark
= q
->n_window
/ 4;
266 q
->high_mark
= q
->n_window
/ 8;
267 if (q
->high_mark
< 2)
270 q
->write_ptr
= q
->read_ptr
= 0;
276 * iwl4965_tx_queue_alloc - Alloc driver data and TFD CB for one Tx/cmd queue
278 static int iwl4965_tx_queue_alloc(struct iwl4965_priv
*priv
,
279 struct iwl4965_tx_queue
*txq
, u32 id
)
281 struct pci_dev
*dev
= priv
->pci_dev
;
283 /* Driver private data, only for Tx (not command) queues,
284 * not shared with device. */
285 if (id
!= IWL_CMD_QUEUE_NUM
) {
286 txq
->txb
= kmalloc(sizeof(txq
->txb
[0]) *
287 TFD_QUEUE_SIZE_MAX
, GFP_KERNEL
);
289 IWL_ERROR("kmalloc for auxiliary BD "
290 "structures failed\n");
296 /* Circular buffer of transmit frame descriptors (TFDs),
297 * shared with device */
298 txq
->bd
= pci_alloc_consistent(dev
,
299 sizeof(txq
->bd
[0]) * TFD_QUEUE_SIZE_MAX
,
303 IWL_ERROR("pci_alloc_consistent(%zd) failed\n",
304 sizeof(txq
->bd
[0]) * TFD_QUEUE_SIZE_MAX
);
321 * iwl4965_tx_queue_init - Allocate and initialize one tx/cmd queue
323 int iwl4965_tx_queue_init(struct iwl4965_priv
*priv
,
324 struct iwl4965_tx_queue
*txq
, int slots_num
, u32 txq_id
)
326 struct pci_dev
*dev
= priv
->pci_dev
;
331 * Alloc buffer array for commands (Tx or other types of commands).
332 * For the command queue (#4), allocate command space + one big
333 * command for scan, since scan command is very huge; the system will
334 * not have two scans at the same time, so only one is needed.
335 * For normal Tx queues (all other queues), no super-size command
338 len
= sizeof(struct iwl4965_cmd
) * slots_num
;
339 if (txq_id
== IWL_CMD_QUEUE_NUM
)
340 len
+= IWL_MAX_SCAN_SIZE
;
341 txq
->cmd
= pci_alloc_consistent(dev
, len
, &txq
->dma_addr_cmd
);
345 /* Alloc driver data array and TFD circular buffer */
346 rc
= iwl4965_tx_queue_alloc(priv
, txq
, txq_id
);
348 pci_free_consistent(dev
, len
, txq
->cmd
, txq
->dma_addr_cmd
);
352 txq
->need_update
= 0;
354 /* TFD_QUEUE_SIZE_MAX must be power-of-two size, otherwise
355 * iwl4965_queue_inc_wrap and iwl4965_queue_dec_wrap are broken. */
356 BUILD_BUG_ON(TFD_QUEUE_SIZE_MAX
& (TFD_QUEUE_SIZE_MAX
- 1));
358 /* Initialize queue's high/low-water marks, and head/tail indexes */
359 iwl4965_queue_init(priv
, &txq
->q
, TFD_QUEUE_SIZE_MAX
, slots_num
, txq_id
);
361 /* Tell device where to find queue */
362 iwl4965_hw_tx_queue_init(priv
, txq
);
368 * iwl4965_tx_queue_free - Deallocate DMA queue.
369 * @txq: Transmit queue to deallocate.
371 * Empty queue by removing and destroying all BD's.
373 * 0-fill, but do not free "txq" descriptor structure.
375 void iwl4965_tx_queue_free(struct iwl4965_priv
*priv
, struct iwl4965_tx_queue
*txq
)
377 struct iwl4965_queue
*q
= &txq
->q
;
378 struct pci_dev
*dev
= priv
->pci_dev
;
384 /* first, empty all BD's */
385 for (; q
->write_ptr
!= q
->read_ptr
;
386 q
->read_ptr
= iwl4965_queue_inc_wrap(q
->read_ptr
, q
->n_bd
))
387 iwl4965_hw_txq_free_tfd(priv
, txq
);
389 len
= sizeof(struct iwl4965_cmd
) * q
->n_window
;
390 if (q
->id
== IWL_CMD_QUEUE_NUM
)
391 len
+= IWL_MAX_SCAN_SIZE
;
393 /* De-alloc array of command/tx buffers */
394 pci_free_consistent(dev
, len
, txq
->cmd
, txq
->dma_addr_cmd
);
396 /* De-alloc circular buffer of TFDs */
398 pci_free_consistent(dev
, sizeof(struct iwl4965_tfd_frame
) *
399 txq
->q
.n_bd
, txq
->bd
, txq
->q
.dma_addr
);
401 /* De-alloc array of per-TFD driver data */
407 /* 0-fill queue descriptor structure */
408 memset(txq
, 0, sizeof(*txq
));
411 const u8 iwl4965_broadcast_addr
[ETH_ALEN
] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
413 /*************** STATION TABLE MANAGEMENT ****
414 * mac80211 should be examined to determine if sta_info is duplicating
415 * the functionality provided here
418 /**************************************************************/
420 #if 0 /* temporary disable till we add real remove station */
422 * iwl4965_remove_station - Remove driver's knowledge of station.
424 * NOTE: This does not remove station from device's station table.
426 static u8
iwl4965_remove_station(struct iwl4965_priv
*priv
, const u8
*addr
, int is_ap
)
428 int index
= IWL_INVALID_STATION
;
432 spin_lock_irqsave(&priv
->sta_lock
, flags
);
436 else if (is_broadcast_ether_addr(addr
))
437 index
= priv
->hw_setting
.bcast_sta_id
;
439 for (i
= IWL_STA_ID
; i
< priv
->hw_setting
.max_stations
; i
++)
440 if (priv
->stations
[i
].used
&&
441 !compare_ether_addr(priv
->stations
[i
].sta
.sta
.addr
,
447 if (unlikely(index
== IWL_INVALID_STATION
))
450 if (priv
->stations
[index
].used
) {
451 priv
->stations
[index
].used
= 0;
452 priv
->num_stations
--;
455 BUG_ON(priv
->num_stations
< 0);
458 spin_unlock_irqrestore(&priv
->sta_lock
, flags
);
464 * iwl4965_clear_stations_table - Clear the driver's station table
466 * NOTE: This does not clear or otherwise alter the device's station table.
468 static void iwl4965_clear_stations_table(struct iwl4965_priv
*priv
)
472 spin_lock_irqsave(&priv
->sta_lock
, flags
);
474 priv
->num_stations
= 0;
475 memset(priv
->stations
, 0, sizeof(priv
->stations
));
477 spin_unlock_irqrestore(&priv
->sta_lock
, flags
);
481 * iwl4965_add_station_flags - Add station to tables in driver and device
483 u8
iwl4965_add_station_flags(struct iwl4965_priv
*priv
, const u8
*addr
,
484 int is_ap
, u8 flags
, void *ht_data
)
487 int index
= IWL_INVALID_STATION
;
488 struct iwl4965_station_entry
*station
;
489 unsigned long flags_spin
;
490 DECLARE_MAC_BUF(mac
);
492 spin_lock_irqsave(&priv
->sta_lock
, flags_spin
);
495 else if (is_broadcast_ether_addr(addr
))
496 index
= priv
->hw_setting
.bcast_sta_id
;
498 for (i
= IWL_STA_ID
; i
< priv
->hw_setting
.max_stations
; i
++) {
499 if (!compare_ether_addr(priv
->stations
[i
].sta
.sta
.addr
,
505 if (!priv
->stations
[i
].used
&&
506 index
== IWL_INVALID_STATION
)
511 /* These two conditions have the same outcome, but keep them separate
512 since they have different meanings */
513 if (unlikely(index
== IWL_INVALID_STATION
)) {
514 spin_unlock_irqrestore(&priv
->sta_lock
, flags_spin
);
518 if (priv
->stations
[index
].used
&&
519 !compare_ether_addr(priv
->stations
[index
].sta
.sta
.addr
, addr
)) {
520 spin_unlock_irqrestore(&priv
->sta_lock
, flags_spin
);
525 IWL_DEBUG_ASSOC("Add STA ID %d: %s\n", index
, print_mac(mac
, addr
));
526 station
= &priv
->stations
[index
];
528 priv
->num_stations
++;
530 /* Set up the REPLY_ADD_STA command to send to device */
531 memset(&station
->sta
, 0, sizeof(struct iwl4965_addsta_cmd
));
532 memcpy(station
->sta
.sta
.addr
, addr
, ETH_ALEN
);
533 station
->sta
.mode
= 0;
534 station
->sta
.sta
.sta_id
= index
;
535 station
->sta
.station_flags
= 0;
537 #ifdef CONFIG_IWL4965_HT
538 /* BCAST station and IBSS stations do not work in HT mode */
539 if (index
!= priv
->hw_setting
.bcast_sta_id
&&
540 priv
->iw_mode
!= IEEE80211_IF_TYPE_IBSS
)
541 iwl4965_set_ht_add_station(priv
, index
,
542 (struct ieee80211_ht_info
*) ht_data
);
543 #endif /*CONFIG_IWL4965_HT*/
545 spin_unlock_irqrestore(&priv
->sta_lock
, flags_spin
);
547 /* Add station to device's station table */
548 iwl4965_send_add_station(priv
, &station
->sta
, flags
);
553 /*************** DRIVER STATUS FUNCTIONS *****/
555 static inline int iwl4965_is_ready(struct iwl4965_priv
*priv
)
557 /* The adapter is 'ready' if READY and GEO_CONFIGURED bits are
558 * set but EXIT_PENDING is not */
559 return test_bit(STATUS_READY
, &priv
->status
) &&
560 test_bit(STATUS_GEO_CONFIGURED
, &priv
->status
) &&
561 !test_bit(STATUS_EXIT_PENDING
, &priv
->status
);
564 static inline int iwl4965_is_alive(struct iwl4965_priv
*priv
)
566 return test_bit(STATUS_ALIVE
, &priv
->status
);
569 static inline int iwl4965_is_init(struct iwl4965_priv
*priv
)
571 return test_bit(STATUS_INIT
, &priv
->status
);
574 static inline int iwl4965_is_rfkill(struct iwl4965_priv
*priv
)
576 return test_bit(STATUS_RF_KILL_HW
, &priv
->status
) ||
577 test_bit(STATUS_RF_KILL_SW
, &priv
->status
);
580 static inline int iwl4965_is_ready_rf(struct iwl4965_priv
*priv
)
583 if (iwl4965_is_rfkill(priv
))
586 return iwl4965_is_ready(priv
);
589 /*************** HOST COMMAND QUEUE FUNCTIONS *****/
591 #define IWL_CMD(x) case x : return #x
593 static const char *get_cmd_string(u8 cmd
)
596 IWL_CMD(REPLY_ALIVE
);
597 IWL_CMD(REPLY_ERROR
);
599 IWL_CMD(REPLY_RXON_ASSOC
);
600 IWL_CMD(REPLY_QOS_PARAM
);
601 IWL_CMD(REPLY_RXON_TIMING
);
602 IWL_CMD(REPLY_ADD_STA
);
603 IWL_CMD(REPLY_REMOVE_STA
);
604 IWL_CMD(REPLY_REMOVE_ALL_STA
);
606 IWL_CMD(REPLY_RATE_SCALE
);
607 IWL_CMD(REPLY_LEDS_CMD
);
608 IWL_CMD(REPLY_TX_LINK_QUALITY_CMD
);
609 IWL_CMD(RADAR_NOTIFICATION
);
610 IWL_CMD(REPLY_QUIET_CMD
);
611 IWL_CMD(REPLY_CHANNEL_SWITCH
);
612 IWL_CMD(CHANNEL_SWITCH_NOTIFICATION
);
613 IWL_CMD(REPLY_SPECTRUM_MEASUREMENT_CMD
);
614 IWL_CMD(SPECTRUM_MEASURE_NOTIFICATION
);
615 IWL_CMD(POWER_TABLE_CMD
);
616 IWL_CMD(PM_SLEEP_NOTIFICATION
);
617 IWL_CMD(PM_DEBUG_STATISTIC_NOTIFIC
);
618 IWL_CMD(REPLY_SCAN_CMD
);
619 IWL_CMD(REPLY_SCAN_ABORT_CMD
);
620 IWL_CMD(SCAN_START_NOTIFICATION
);
621 IWL_CMD(SCAN_RESULTS_NOTIFICATION
);
622 IWL_CMD(SCAN_COMPLETE_NOTIFICATION
);
623 IWL_CMD(BEACON_NOTIFICATION
);
624 IWL_CMD(REPLY_TX_BEACON
);
625 IWL_CMD(WHO_IS_AWAKE_NOTIFICATION
);
626 IWL_CMD(QUIET_NOTIFICATION
);
627 IWL_CMD(REPLY_TX_PWR_TABLE_CMD
);
628 IWL_CMD(MEASURE_ABORT_NOTIFICATION
);
629 IWL_CMD(REPLY_BT_CONFIG
);
630 IWL_CMD(REPLY_STATISTICS_CMD
);
631 IWL_CMD(STATISTICS_NOTIFICATION
);
632 IWL_CMD(REPLY_CARD_STATE_CMD
);
633 IWL_CMD(CARD_STATE_NOTIFICATION
);
634 IWL_CMD(MISSED_BEACONS_NOTIFICATION
);
635 IWL_CMD(REPLY_CT_KILL_CONFIG_CMD
);
636 IWL_CMD(SENSITIVITY_CMD
);
637 IWL_CMD(REPLY_PHY_CALIBRATION_CMD
);
638 IWL_CMD(REPLY_RX_PHY_CMD
);
639 IWL_CMD(REPLY_RX_MPDU_CMD
);
640 IWL_CMD(REPLY_4965_RX
);
641 IWL_CMD(REPLY_COMPRESSED_BA
);
648 #define HOST_COMPLETE_TIMEOUT (HZ / 2)
651 * iwl4965_enqueue_hcmd - enqueue a uCode command
652 * @priv: device private data point
653 * @cmd: a point to the ucode command structure
655 * The function returns < 0 values to indicate the operation is
656 * failed. On success, it turns the index (> 0) of command in the
659 static int iwl4965_enqueue_hcmd(struct iwl4965_priv
*priv
, struct iwl4965_host_cmd
*cmd
)
661 struct iwl4965_tx_queue
*txq
= &priv
->txq
[IWL_CMD_QUEUE_NUM
];
662 struct iwl4965_queue
*q
= &txq
->q
;
663 struct iwl4965_tfd_frame
*tfd
;
665 struct iwl4965_cmd
*out_cmd
;
667 u16 fix_size
= (u16
)(cmd
->len
+ sizeof(out_cmd
->hdr
));
668 dma_addr_t phys_addr
;
672 /* If any of the command structures end up being larger than
673 * the TFD_MAX_PAYLOAD_SIZE, and it sent as a 'small' command then
674 * we will need to increase the size of the TFD entries */
675 BUG_ON((fix_size
> TFD_MAX_PAYLOAD_SIZE
) &&
676 !(cmd
->meta
.flags
& CMD_SIZE_HUGE
));
678 if (iwl4965_is_rfkill(priv
)) {
679 IWL_DEBUG_INFO("Not sending command - RF KILL");
683 if (iwl4965_queue_space(q
) < ((cmd
->meta
.flags
& CMD_ASYNC
) ? 2 : 1)) {
684 IWL_ERROR("No space for Tx\n");
688 spin_lock_irqsave(&priv
->hcmd_lock
, flags
);
690 tfd
= &txq
->bd
[q
->write_ptr
];
691 memset(tfd
, 0, sizeof(*tfd
));
693 control_flags
= (u32
*) tfd
;
695 idx
= get_cmd_index(q
, q
->write_ptr
, cmd
->meta
.flags
& CMD_SIZE_HUGE
);
696 out_cmd
= &txq
->cmd
[idx
];
698 out_cmd
->hdr
.cmd
= cmd
->id
;
699 memcpy(&out_cmd
->meta
, &cmd
->meta
, sizeof(cmd
->meta
));
700 memcpy(&out_cmd
->cmd
.payload
, cmd
->data
, cmd
->len
);
702 /* At this point, the out_cmd now has all of the incoming cmd
705 out_cmd
->hdr
.flags
= 0;
706 out_cmd
->hdr
.sequence
= cpu_to_le16(QUEUE_TO_SEQ(IWL_CMD_QUEUE_NUM
) |
707 INDEX_TO_SEQ(q
->write_ptr
));
708 if (out_cmd
->meta
.flags
& CMD_SIZE_HUGE
)
709 out_cmd
->hdr
.sequence
|= cpu_to_le16(SEQ_HUGE_FRAME
);
711 phys_addr
= txq
->dma_addr_cmd
+ sizeof(txq
->cmd
[0]) * idx
+
712 offsetof(struct iwl4965_cmd
, hdr
);
713 iwl4965_hw_txq_attach_buf_to_tfd(priv
, tfd
, phys_addr
, fix_size
);
715 IWL_DEBUG_HC("Sending command %s (#%x), seq: 0x%04X, "
716 "%d bytes at %d[%d]:%d\n",
717 get_cmd_string(out_cmd
->hdr
.cmd
),
718 out_cmd
->hdr
.cmd
, le16_to_cpu(out_cmd
->hdr
.sequence
),
719 fix_size
, q
->write_ptr
, idx
, IWL_CMD_QUEUE_NUM
);
721 txq
->need_update
= 1;
723 /* Set up entry in queue's byte count circular buffer */
724 ret
= iwl4965_tx_queue_update_wr_ptr(priv
, txq
, 0);
726 /* Increment and update queue's write index */
727 q
->write_ptr
= iwl4965_queue_inc_wrap(q
->write_ptr
, q
->n_bd
);
728 iwl4965_tx_queue_update_write_ptr(priv
, txq
);
730 spin_unlock_irqrestore(&priv
->hcmd_lock
, flags
);
731 return ret
? ret
: idx
;
734 static int iwl4965_send_cmd_async(struct iwl4965_priv
*priv
, struct iwl4965_host_cmd
*cmd
)
738 BUG_ON(!(cmd
->meta
.flags
& CMD_ASYNC
));
740 /* An asynchronous command can not expect an SKB to be set. */
741 BUG_ON(cmd
->meta
.flags
& CMD_WANT_SKB
);
743 /* An asynchronous command MUST have a callback. */
744 BUG_ON(!cmd
->meta
.u
.callback
);
746 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
749 ret
= iwl4965_enqueue_hcmd(priv
, cmd
);
751 IWL_ERROR("Error sending %s: iwl4965_enqueue_hcmd failed: %d\n",
752 get_cmd_string(cmd
->id
), ret
);
758 static int iwl4965_send_cmd_sync(struct iwl4965_priv
*priv
, struct iwl4965_host_cmd
*cmd
)
762 static atomic_t entry
= ATOMIC_INIT(0); /* reentrance protection */
764 BUG_ON(cmd
->meta
.flags
& CMD_ASYNC
);
766 /* A synchronous command can not have a callback set. */
767 BUG_ON(cmd
->meta
.u
.callback
!= NULL
);
769 if (atomic_xchg(&entry
, 1)) {
770 IWL_ERROR("Error sending %s: Already sending a host command\n",
771 get_cmd_string(cmd
->id
));
775 set_bit(STATUS_HCMD_ACTIVE
, &priv
->status
);
777 if (cmd
->meta
.flags
& CMD_WANT_SKB
)
778 cmd
->meta
.source
= &cmd
->meta
;
780 cmd_idx
= iwl4965_enqueue_hcmd(priv
, cmd
);
783 IWL_ERROR("Error sending %s: iwl4965_enqueue_hcmd failed: %d\n",
784 get_cmd_string(cmd
->id
), ret
);
788 ret
= wait_event_interruptible_timeout(priv
->wait_command_queue
,
789 !test_bit(STATUS_HCMD_ACTIVE
, &priv
->status
),
790 HOST_COMPLETE_TIMEOUT
);
792 if (test_bit(STATUS_HCMD_ACTIVE
, &priv
->status
)) {
793 IWL_ERROR("Error sending %s: time out after %dms.\n",
794 get_cmd_string(cmd
->id
),
795 jiffies_to_msecs(HOST_COMPLETE_TIMEOUT
));
797 clear_bit(STATUS_HCMD_ACTIVE
, &priv
->status
);
803 if (test_bit(STATUS_RF_KILL_HW
, &priv
->status
)) {
804 IWL_DEBUG_INFO("Command %s aborted: RF KILL Switch\n",
805 get_cmd_string(cmd
->id
));
809 if (test_bit(STATUS_FW_ERROR
, &priv
->status
)) {
810 IWL_DEBUG_INFO("Command %s failed: FW Error\n",
811 get_cmd_string(cmd
->id
));
815 if ((cmd
->meta
.flags
& CMD_WANT_SKB
) && !cmd
->meta
.u
.skb
) {
816 IWL_ERROR("Error: Response NULL in '%s'\n",
817 get_cmd_string(cmd
->id
));
826 if (cmd
->meta
.flags
& CMD_WANT_SKB
) {
827 struct iwl4965_cmd
*qcmd
;
829 /* Cancel the CMD_WANT_SKB flag for the cmd in the
830 * TX cmd queue. Otherwise in case the cmd comes
831 * in later, it will possibly set an invalid
832 * address (cmd->meta.source). */
833 qcmd
= &priv
->txq
[IWL_CMD_QUEUE_NUM
].cmd
[cmd_idx
];
834 qcmd
->meta
.flags
&= ~CMD_WANT_SKB
;
837 if (cmd
->meta
.u
.skb
) {
838 dev_kfree_skb_any(cmd
->meta
.u
.skb
);
839 cmd
->meta
.u
.skb
= NULL
;
842 atomic_set(&entry
, 0);
846 int iwl4965_send_cmd(struct iwl4965_priv
*priv
, struct iwl4965_host_cmd
*cmd
)
848 if (cmd
->meta
.flags
& CMD_ASYNC
)
849 return iwl4965_send_cmd_async(priv
, cmd
);
851 return iwl4965_send_cmd_sync(priv
, cmd
);
854 int iwl4965_send_cmd_pdu(struct iwl4965_priv
*priv
, u8 id
, u16 len
, const void *data
)
856 struct iwl4965_host_cmd cmd
= {
862 return iwl4965_send_cmd_sync(priv
, &cmd
);
865 static int __must_check
iwl4965_send_cmd_u32(struct iwl4965_priv
*priv
, u8 id
, u32 val
)
867 struct iwl4965_host_cmd cmd
= {
873 return iwl4965_send_cmd_sync(priv
, &cmd
);
876 int iwl4965_send_statistics_request(struct iwl4965_priv
*priv
)
878 return iwl4965_send_cmd_u32(priv
, REPLY_STATISTICS_CMD
, 0);
882 * iwl4965_rxon_add_station - add station into station table.
884 * there is only one AP station with id= IWL_AP_ID
885 * NOTE: mutex must be held before calling this fnction
887 static int iwl4965_rxon_add_station(struct iwl4965_priv
*priv
,
888 const u8
*addr
, int is_ap
)
892 /* Add station to device's station table */
893 #ifdef CONFIG_IWL4965_HT
894 struct ieee80211_conf
*conf
= &priv
->hw
->conf
;
895 struct ieee80211_ht_info
*cur_ht_config
= &conf
->ht_conf
;
898 (conf
->flags
& IEEE80211_CONF_SUPPORT_HT_MODE
) &&
899 (priv
->iw_mode
== IEEE80211_IF_TYPE_STA
))
900 sta_id
= iwl4965_add_station_flags(priv
, addr
, is_ap
,
903 #endif /* CONFIG_IWL4965_HT */
904 sta_id
= iwl4965_add_station_flags(priv
, addr
, is_ap
,
907 /* Set up default rate scaling table in device's station table */
908 iwl4965_add_station(priv
, addr
, is_ap
);
914 * iwl4965_set_rxon_channel - Set the phymode and channel values in staging RXON
915 * @phymode: MODE_IEEE80211A sets to 5.2GHz; all else set to 2.4GHz
916 * @channel: Any channel valid for the requested phymode
918 * In addition to setting the staging RXON, priv->phymode is also set.
920 * NOTE: Does not commit to the hardware; it sets appropriate bit fields
921 * in the staging RXON flag structure based on the phymode
923 static int iwl4965_set_rxon_channel(struct iwl4965_priv
*priv
,
924 enum ieee80211_band band
,
927 if (!iwl4965_get_channel_info(priv
, band
, channel
)) {
928 IWL_DEBUG_INFO("Could not set channel to %d [%d]\n",
933 if ((le16_to_cpu(priv
->staging_rxon
.channel
) == channel
) &&
934 (priv
->band
== band
))
937 priv
->staging_rxon
.channel
= cpu_to_le16(channel
);
938 if (band
== IEEE80211_BAND_5GHZ
)
939 priv
->staging_rxon
.flags
&= ~RXON_FLG_BAND_24G_MSK
;
941 priv
->staging_rxon
.flags
|= RXON_FLG_BAND_24G_MSK
;
945 IWL_DEBUG_INFO("Staging channel set to %d [%d]\n", channel
, band
);
951 * iwl4965_check_rxon_cmd - validate RXON structure is valid
953 * NOTE: This is really only useful during development and can eventually
954 * be #ifdef'd out once the driver is stable and folks aren't actively
957 static int iwl4965_check_rxon_cmd(struct iwl4965_rxon_cmd
*rxon
)
962 if (rxon
->flags
& RXON_FLG_BAND_24G_MSK
) {
963 error
|= le32_to_cpu(rxon
->flags
&
964 (RXON_FLG_TGJ_NARROW_BAND_MSK
|
965 RXON_FLG_RADAR_DETECT_MSK
));
967 IWL_WARNING("check 24G fields %d | %d\n",
970 error
|= (rxon
->flags
& RXON_FLG_SHORT_SLOT_MSK
) ?
971 0 : le32_to_cpu(RXON_FLG_SHORT_SLOT_MSK
);
973 IWL_WARNING("check 52 fields %d | %d\n",
975 error
|= le32_to_cpu(rxon
->flags
& RXON_FLG_CCK_MSK
);
977 IWL_WARNING("check 52 CCK %d | %d\n",
980 error
|= (rxon
->node_addr
[0] | rxon
->bssid_addr
[0]) & 0x1;
982 IWL_WARNING("check mac addr %d | %d\n", counter
++, error
);
984 /* make sure basic rates 6Mbps and 1Mbps are supported */
985 error
|= (((rxon
->ofdm_basic_rates
& IWL_RATE_6M_MASK
) == 0) &&
986 ((rxon
->cck_basic_rates
& IWL_RATE_1M_MASK
) == 0));
988 IWL_WARNING("check basic rate %d | %d\n", counter
++, error
);
990 error
|= (le16_to_cpu(rxon
->assoc_id
) > 2007);
992 IWL_WARNING("check assoc id %d | %d\n", counter
++, error
);
994 error
|= ((rxon
->flags
& (RXON_FLG_CCK_MSK
| RXON_FLG_SHORT_SLOT_MSK
))
995 == (RXON_FLG_CCK_MSK
| RXON_FLG_SHORT_SLOT_MSK
));
997 IWL_WARNING("check CCK and short slot %d | %d\n",
1000 error
|= ((rxon
->flags
& (RXON_FLG_CCK_MSK
| RXON_FLG_AUTO_DETECT_MSK
))
1001 == (RXON_FLG_CCK_MSK
| RXON_FLG_AUTO_DETECT_MSK
));
1003 IWL_WARNING("check CCK & auto detect %d | %d\n",
1006 error
|= ((rxon
->flags
& (RXON_FLG_AUTO_DETECT_MSK
|
1007 RXON_FLG_TGG_PROTECT_MSK
)) == RXON_FLG_TGG_PROTECT_MSK
);
1009 IWL_WARNING("check TGG and auto detect %d | %d\n",
1013 IWL_WARNING("Tuning to channel %d\n",
1014 le16_to_cpu(rxon
->channel
));
1017 IWL_ERROR("Not a valid iwl4965_rxon_assoc_cmd field values\n");
1024 * iwl4965_full_rxon_required - check if full RXON (vs RXON_ASSOC) cmd is needed
1025 * @priv: staging_rxon is compared to active_rxon
1027 * If the RXON structure is changing enough to require a new tune,
1028 * or is clearing the RXON_FILTER_ASSOC_MSK, then return 1 to indicate that
1029 * a new tune (full RXON command, rather than RXON_ASSOC cmd) is required.
1031 static int iwl4965_full_rxon_required(struct iwl4965_priv
*priv
)
1034 /* These items are only settable from the full RXON command */
1035 if (!(priv
->active_rxon
.filter_flags
& RXON_FILTER_ASSOC_MSK
) ||
1036 compare_ether_addr(priv
->staging_rxon
.bssid_addr
,
1037 priv
->active_rxon
.bssid_addr
) ||
1038 compare_ether_addr(priv
->staging_rxon
.node_addr
,
1039 priv
->active_rxon
.node_addr
) ||
1040 compare_ether_addr(priv
->staging_rxon
.wlap_bssid_addr
,
1041 priv
->active_rxon
.wlap_bssid_addr
) ||
1042 (priv
->staging_rxon
.dev_type
!= priv
->active_rxon
.dev_type
) ||
1043 (priv
->staging_rxon
.channel
!= priv
->active_rxon
.channel
) ||
1044 (priv
->staging_rxon
.air_propagation
!=
1045 priv
->active_rxon
.air_propagation
) ||
1046 (priv
->staging_rxon
.ofdm_ht_single_stream_basic_rates
!=
1047 priv
->active_rxon
.ofdm_ht_single_stream_basic_rates
) ||
1048 (priv
->staging_rxon
.ofdm_ht_dual_stream_basic_rates
!=
1049 priv
->active_rxon
.ofdm_ht_dual_stream_basic_rates
) ||
1050 (priv
->staging_rxon
.rx_chain
!= priv
->active_rxon
.rx_chain
) ||
1051 (priv
->staging_rxon
.assoc_id
!= priv
->active_rxon
.assoc_id
))
1054 /* flags, filter_flags, ofdm_basic_rates, and cck_basic_rates can
1055 * be updated with the RXON_ASSOC command -- however only some
1056 * flag transitions are allowed using RXON_ASSOC */
1058 /* Check if we are not switching bands */
1059 if ((priv
->staging_rxon
.flags
& RXON_FLG_BAND_24G_MSK
) !=
1060 (priv
->active_rxon
.flags
& RXON_FLG_BAND_24G_MSK
))
1063 /* Check if we are switching association toggle */
1064 if ((priv
->staging_rxon
.filter_flags
& RXON_FILTER_ASSOC_MSK
) !=
1065 (priv
->active_rxon
.filter_flags
& RXON_FILTER_ASSOC_MSK
))
1071 static int iwl4965_send_rxon_assoc(struct iwl4965_priv
*priv
)
1074 struct iwl4965_rx_packet
*res
= NULL
;
1075 struct iwl4965_rxon_assoc_cmd rxon_assoc
;
1076 struct iwl4965_host_cmd cmd
= {
1077 .id
= REPLY_RXON_ASSOC
,
1078 .len
= sizeof(rxon_assoc
),
1079 .meta
.flags
= CMD_WANT_SKB
,
1080 .data
= &rxon_assoc
,
1082 const struct iwl4965_rxon_cmd
*rxon1
= &priv
->staging_rxon
;
1083 const struct iwl4965_rxon_cmd
*rxon2
= &priv
->active_rxon
;
1085 if ((rxon1
->flags
== rxon2
->flags
) &&
1086 (rxon1
->filter_flags
== rxon2
->filter_flags
) &&
1087 (rxon1
->cck_basic_rates
== rxon2
->cck_basic_rates
) &&
1088 (rxon1
->ofdm_ht_single_stream_basic_rates
==
1089 rxon2
->ofdm_ht_single_stream_basic_rates
) &&
1090 (rxon1
->ofdm_ht_dual_stream_basic_rates
==
1091 rxon2
->ofdm_ht_dual_stream_basic_rates
) &&
1092 (rxon1
->rx_chain
== rxon2
->rx_chain
) &&
1093 (rxon1
->ofdm_basic_rates
== rxon2
->ofdm_basic_rates
)) {
1094 IWL_DEBUG_INFO("Using current RXON_ASSOC. Not resending.\n");
1098 rxon_assoc
.flags
= priv
->staging_rxon
.flags
;
1099 rxon_assoc
.filter_flags
= priv
->staging_rxon
.filter_flags
;
1100 rxon_assoc
.ofdm_basic_rates
= priv
->staging_rxon
.ofdm_basic_rates
;
1101 rxon_assoc
.cck_basic_rates
= priv
->staging_rxon
.cck_basic_rates
;
1102 rxon_assoc
.reserved
= 0;
1103 rxon_assoc
.ofdm_ht_single_stream_basic_rates
=
1104 priv
->staging_rxon
.ofdm_ht_single_stream_basic_rates
;
1105 rxon_assoc
.ofdm_ht_dual_stream_basic_rates
=
1106 priv
->staging_rxon
.ofdm_ht_dual_stream_basic_rates
;
1107 rxon_assoc
.rx_chain_select_flags
= priv
->staging_rxon
.rx_chain
;
1109 rc
= iwl4965_send_cmd_sync(priv
, &cmd
);
1113 res
= (struct iwl4965_rx_packet
*)cmd
.meta
.u
.skb
->data
;
1114 if (res
->hdr
.flags
& IWL_CMD_FAILED_MSK
) {
1115 IWL_ERROR("Bad return from REPLY_RXON_ASSOC command\n");
1119 priv
->alloc_rxb_skb
--;
1120 dev_kfree_skb_any(cmd
.meta
.u
.skb
);
1126 * iwl4965_commit_rxon - commit staging_rxon to hardware
1128 * The RXON command in staging_rxon is committed to the hardware and
1129 * the active_rxon structure is updated with the new data. This
1130 * function correctly transitions out of the RXON_ASSOC_MSK state if
1131 * a HW tune is required based on the RXON structure changes.
1133 static int iwl4965_commit_rxon(struct iwl4965_priv
*priv
)
1135 /* cast away the const for active_rxon in this function */
1136 struct iwl4965_rxon_cmd
*active_rxon
= (void *)&priv
->active_rxon
;
1137 DECLARE_MAC_BUF(mac
);
1140 if (!iwl4965_is_alive(priv
))
1143 /* always get timestamp with Rx frame */
1144 priv
->staging_rxon
.flags
|= RXON_FLG_TSF2HOST_MSK
;
1146 rc
= iwl4965_check_rxon_cmd(&priv
->staging_rxon
);
1148 IWL_ERROR("Invalid RXON configuration. Not committing.\n");
1152 /* If we don't need to send a full RXON, we can use
1153 * iwl4965_rxon_assoc_cmd which is used to reconfigure filter
1154 * and other flags for the current radio configuration. */
1155 if (!iwl4965_full_rxon_required(priv
)) {
1156 rc
= iwl4965_send_rxon_assoc(priv
);
1158 IWL_ERROR("Error setting RXON_ASSOC "
1159 "configuration (%d).\n", rc
);
1163 memcpy(active_rxon
, &priv
->staging_rxon
, sizeof(*active_rxon
));
1168 /* station table will be cleared */
1169 priv
->assoc_station_added
= 0;
1171 #ifdef CONFIG_IWL4965_SENSITIVITY
1172 priv
->sensitivity_data
.state
= IWL_SENS_CALIB_NEED_REINIT
;
1173 if (!priv
->error_recovering
)
1174 priv
->start_calib
= 0;
1176 iwl4965_init_sensitivity(priv
, CMD_ASYNC
, 1);
1177 #endif /* CONFIG_IWL4965_SENSITIVITY */
1179 /* If we are currently associated and the new config requires
1180 * an RXON_ASSOC and the new config wants the associated mask enabled,
1181 * we must clear the associated from the active configuration
1182 * before we apply the new config */
1183 if (iwl4965_is_associated(priv
) &&
1184 (priv
->staging_rxon
.filter_flags
& RXON_FILTER_ASSOC_MSK
)) {
1185 IWL_DEBUG_INFO("Toggling associated bit on current RXON\n");
1186 active_rxon
->filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
1188 rc
= iwl4965_send_cmd_pdu(priv
, REPLY_RXON
,
1189 sizeof(struct iwl4965_rxon_cmd
),
1190 &priv
->active_rxon
);
1192 /* If the mask clearing failed then we set
1193 * active_rxon back to what it was previously */
1195 active_rxon
->filter_flags
|= RXON_FILTER_ASSOC_MSK
;
1196 IWL_ERROR("Error clearing ASSOC_MSK on current "
1197 "configuration (%d).\n", rc
);
1202 IWL_DEBUG_INFO("Sending RXON\n"
1203 "* with%s RXON_FILTER_ASSOC_MSK\n"
1206 ((priv
->staging_rxon
.filter_flags
&
1207 RXON_FILTER_ASSOC_MSK
) ? "" : "out"),
1208 le16_to_cpu(priv
->staging_rxon
.channel
),
1209 print_mac(mac
, priv
->staging_rxon
.bssid_addr
));
1211 /* Apply the new configuration */
1212 rc
= iwl4965_send_cmd_pdu(priv
, REPLY_RXON
,
1213 sizeof(struct iwl4965_rxon_cmd
), &priv
->staging_rxon
);
1215 IWL_ERROR("Error setting new configuration (%d).\n", rc
);
1219 iwl4965_clear_stations_table(priv
);
1221 #ifdef CONFIG_IWL4965_SENSITIVITY
1222 if (!priv
->error_recovering
)
1223 priv
->start_calib
= 0;
1225 priv
->sensitivity_data
.state
= IWL_SENS_CALIB_NEED_REINIT
;
1226 iwl4965_init_sensitivity(priv
, CMD_ASYNC
, 1);
1227 #endif /* CONFIG_IWL4965_SENSITIVITY */
1229 memcpy(active_rxon
, &priv
->staging_rxon
, sizeof(*active_rxon
));
1231 /* If we issue a new RXON command which required a tune then we must
1232 * send a new TXPOWER command or we won't be able to Tx any frames */
1233 rc
= iwl4965_hw_reg_send_txpower(priv
);
1235 IWL_ERROR("Error setting Tx power (%d).\n", rc
);
1239 /* Add the broadcast address so we can send broadcast frames */
1240 if (iwl4965_rxon_add_station(priv
, iwl4965_broadcast_addr
, 0) ==
1241 IWL_INVALID_STATION
) {
1242 IWL_ERROR("Error adding BROADCAST address for transmit.\n");
1246 /* If we have set the ASSOC_MSK and we are in BSS mode then
1247 * add the IWL_AP_ID to the station rate table */
1248 if (iwl4965_is_associated(priv
) &&
1249 (priv
->iw_mode
== IEEE80211_IF_TYPE_STA
)) {
1250 if (iwl4965_rxon_add_station(priv
, priv
->active_rxon
.bssid_addr
, 1)
1251 == IWL_INVALID_STATION
) {
1252 IWL_ERROR("Error adding AP address for transmit.\n");
1255 priv
->assoc_station_added
= 1;
1261 static int iwl4965_send_bt_config(struct iwl4965_priv
*priv
)
1263 struct iwl4965_bt_cmd bt_cmd
= {
1271 return iwl4965_send_cmd_pdu(priv
, REPLY_BT_CONFIG
,
1272 sizeof(struct iwl4965_bt_cmd
), &bt_cmd
);
1275 static int iwl4965_send_scan_abort(struct iwl4965_priv
*priv
)
1278 struct iwl4965_rx_packet
*res
;
1279 struct iwl4965_host_cmd cmd
= {
1280 .id
= REPLY_SCAN_ABORT_CMD
,
1281 .meta
.flags
= CMD_WANT_SKB
,
1284 /* If there isn't a scan actively going on in the hardware
1285 * then we are in between scan bands and not actually
1286 * actively scanning, so don't send the abort command */
1287 if (!test_bit(STATUS_SCAN_HW
, &priv
->status
)) {
1288 clear_bit(STATUS_SCAN_ABORTING
, &priv
->status
);
1292 rc
= iwl4965_send_cmd_sync(priv
, &cmd
);
1294 clear_bit(STATUS_SCAN_ABORTING
, &priv
->status
);
1298 res
= (struct iwl4965_rx_packet
*)cmd
.meta
.u
.skb
->data
;
1299 if (res
->u
.status
!= CAN_ABORT_STATUS
) {
1300 /* The scan abort will return 1 for success or
1301 * 2 for "failure". A failure condition can be
1302 * due to simply not being in an active scan which
1303 * can occur if we send the scan abort before we
1304 * the microcode has notified us that a scan is
1306 IWL_DEBUG_INFO("SCAN_ABORT returned %d.\n", res
->u
.status
);
1307 clear_bit(STATUS_SCAN_ABORTING
, &priv
->status
);
1308 clear_bit(STATUS_SCAN_HW
, &priv
->status
);
1311 dev_kfree_skb_any(cmd
.meta
.u
.skb
);
1316 static int iwl4965_card_state_sync_callback(struct iwl4965_priv
*priv
,
1317 struct iwl4965_cmd
*cmd
,
1318 struct sk_buff
*skb
)
1326 * Use: Sets the device's internal card state to enable, disable, or halt
1328 * When in the 'enable' state the card operates as normal.
1329 * When in the 'disable' state, the card enters into a low power mode.
1330 * When in the 'halt' state, the card is shut down and must be fully
1331 * restarted to come back on.
1333 static int iwl4965_send_card_state(struct iwl4965_priv
*priv
, u32 flags
, u8 meta_flag
)
1335 struct iwl4965_host_cmd cmd
= {
1336 .id
= REPLY_CARD_STATE_CMD
,
1339 .meta
.flags
= meta_flag
,
1342 if (meta_flag
& CMD_ASYNC
)
1343 cmd
.meta
.u
.callback
= iwl4965_card_state_sync_callback
;
1345 return iwl4965_send_cmd(priv
, &cmd
);
1348 static int iwl4965_add_sta_sync_callback(struct iwl4965_priv
*priv
,
1349 struct iwl4965_cmd
*cmd
, struct sk_buff
*skb
)
1351 struct iwl4965_rx_packet
*res
= NULL
;
1354 IWL_ERROR("Error: Response NULL in REPLY_ADD_STA.\n");
1358 res
= (struct iwl4965_rx_packet
*)skb
->data
;
1359 if (res
->hdr
.flags
& IWL_CMD_FAILED_MSK
) {
1360 IWL_ERROR("Bad return from REPLY_ADD_STA (0x%08X)\n",
1365 switch (res
->u
.add_sta
.status
) {
1366 case ADD_STA_SUCCESS_MSK
:
1372 /* We didn't cache the SKB; let the caller free it */
1376 int iwl4965_send_add_station(struct iwl4965_priv
*priv
,
1377 struct iwl4965_addsta_cmd
*sta
, u8 flags
)
1379 struct iwl4965_rx_packet
*res
= NULL
;
1381 struct iwl4965_host_cmd cmd
= {
1382 .id
= REPLY_ADD_STA
,
1383 .len
= sizeof(struct iwl4965_addsta_cmd
),
1384 .meta
.flags
= flags
,
1388 if (flags
& CMD_ASYNC
)
1389 cmd
.meta
.u
.callback
= iwl4965_add_sta_sync_callback
;
1391 cmd
.meta
.flags
|= CMD_WANT_SKB
;
1393 rc
= iwl4965_send_cmd(priv
, &cmd
);
1395 if (rc
|| (flags
& CMD_ASYNC
))
1398 res
= (struct iwl4965_rx_packet
*)cmd
.meta
.u
.skb
->data
;
1399 if (res
->hdr
.flags
& IWL_CMD_FAILED_MSK
) {
1400 IWL_ERROR("Bad return from REPLY_ADD_STA (0x%08X)\n",
1406 switch (res
->u
.add_sta
.status
) {
1407 case ADD_STA_SUCCESS_MSK
:
1408 IWL_DEBUG_INFO("REPLY_ADD_STA PASSED\n");
1412 IWL_WARNING("REPLY_ADD_STA failed\n");
1417 priv
->alloc_rxb_skb
--;
1418 dev_kfree_skb_any(cmd
.meta
.u
.skb
);
1423 static int iwl4965_update_sta_key_info(struct iwl4965_priv
*priv
,
1424 struct ieee80211_key_conf
*keyconf
,
1427 unsigned long flags
;
1428 __le16 key_flags
= 0;
1430 switch (keyconf
->alg
) {
1432 key_flags
|= STA_KEY_FLG_CCMP
;
1433 key_flags
|= cpu_to_le16(
1434 keyconf
->keyidx
<< STA_KEY_FLG_KEYID_POS
);
1435 key_flags
&= ~STA_KEY_FLG_INVALID
;
1442 spin_lock_irqsave(&priv
->sta_lock
, flags
);
1443 priv
->stations
[sta_id
].keyinfo
.alg
= keyconf
->alg
;
1444 priv
->stations
[sta_id
].keyinfo
.keylen
= keyconf
->keylen
;
1445 memcpy(priv
->stations
[sta_id
].keyinfo
.key
, keyconf
->key
,
1448 memcpy(priv
->stations
[sta_id
].sta
.key
.key
, keyconf
->key
,
1450 priv
->stations
[sta_id
].sta
.key
.key_flags
= key_flags
;
1451 priv
->stations
[sta_id
].sta
.sta
.modify_mask
= STA_MODIFY_KEY_MASK
;
1452 priv
->stations
[sta_id
].sta
.mode
= STA_CONTROL_MODIFY_MSK
;
1454 spin_unlock_irqrestore(&priv
->sta_lock
, flags
);
1456 IWL_DEBUG_INFO("hwcrypto: modify ucode station key info\n");
1457 iwl4965_send_add_station(priv
, &priv
->stations
[sta_id
].sta
, 0);
1461 static int iwl4965_clear_sta_key_info(struct iwl4965_priv
*priv
, u8 sta_id
)
1463 unsigned long flags
;
1465 spin_lock_irqsave(&priv
->sta_lock
, flags
);
1466 memset(&priv
->stations
[sta_id
].keyinfo
, 0, sizeof(struct iwl4965_hw_key
));
1467 memset(&priv
->stations
[sta_id
].sta
.key
, 0, sizeof(struct iwl4965_keyinfo
));
1468 priv
->stations
[sta_id
].sta
.key
.key_flags
= STA_KEY_FLG_NO_ENC
;
1469 priv
->stations
[sta_id
].sta
.sta
.modify_mask
= STA_MODIFY_KEY_MASK
;
1470 priv
->stations
[sta_id
].sta
.mode
= STA_CONTROL_MODIFY_MSK
;
1471 spin_unlock_irqrestore(&priv
->sta_lock
, flags
);
1473 IWL_DEBUG_INFO("hwcrypto: clear ucode station key info\n");
1474 iwl4965_send_add_station(priv
, &priv
->stations
[sta_id
].sta
, 0);
1478 static void iwl4965_clear_free_frames(struct iwl4965_priv
*priv
)
1480 struct list_head
*element
;
1482 IWL_DEBUG_INFO("%d frames on pre-allocated heap on clear.\n",
1483 priv
->frames_count
);
1485 while (!list_empty(&priv
->free_frames
)) {
1486 element
= priv
->free_frames
.next
;
1488 kfree(list_entry(element
, struct iwl4965_frame
, list
));
1489 priv
->frames_count
--;
1492 if (priv
->frames_count
) {
1493 IWL_WARNING("%d frames still in use. Did we lose one?\n",
1494 priv
->frames_count
);
1495 priv
->frames_count
= 0;
1499 static struct iwl4965_frame
*iwl4965_get_free_frame(struct iwl4965_priv
*priv
)
1501 struct iwl4965_frame
*frame
;
1502 struct list_head
*element
;
1503 if (list_empty(&priv
->free_frames
)) {
1504 frame
= kzalloc(sizeof(*frame
), GFP_KERNEL
);
1506 IWL_ERROR("Could not allocate frame!\n");
1510 priv
->frames_count
++;
1514 element
= priv
->free_frames
.next
;
1516 return list_entry(element
, struct iwl4965_frame
, list
);
1519 static void iwl4965_free_frame(struct iwl4965_priv
*priv
, struct iwl4965_frame
*frame
)
1521 memset(frame
, 0, sizeof(*frame
));
1522 list_add(&frame
->list
, &priv
->free_frames
);
1525 unsigned int iwl4965_fill_beacon_frame(struct iwl4965_priv
*priv
,
1526 struct ieee80211_hdr
*hdr
,
1527 const u8
*dest
, int left
)
1530 if (!iwl4965_is_associated(priv
) || !priv
->ibss_beacon
||
1531 ((priv
->iw_mode
!= IEEE80211_IF_TYPE_IBSS
) &&
1532 (priv
->iw_mode
!= IEEE80211_IF_TYPE_AP
)))
1535 if (priv
->ibss_beacon
->len
> left
)
1538 memcpy(hdr
, priv
->ibss_beacon
->data
, priv
->ibss_beacon
->len
);
1540 return priv
->ibss_beacon
->len
;
1543 static u8
iwl4965_rate_get_lowest_plcp(int rate_mask
)
1547 for (i
= IWL_RATE_1M_INDEX
; i
!= IWL_RATE_INVALID
;
1548 i
= iwl4965_rates
[i
].next_ieee
) {
1549 if (rate_mask
& (1 << i
))
1550 return iwl4965_rates
[i
].plcp
;
1553 return IWL_RATE_INVALID
;
1556 static int iwl4965_send_beacon_cmd(struct iwl4965_priv
*priv
)
1558 struct iwl4965_frame
*frame
;
1559 unsigned int frame_size
;
1563 frame
= iwl4965_get_free_frame(priv
);
1566 IWL_ERROR("Could not obtain free frame buffer for beacon "
1571 if (!(priv
->staging_rxon
.flags
& RXON_FLG_BAND_24G_MSK
)) {
1572 rate
= iwl4965_rate_get_lowest_plcp(priv
->active_rate_basic
&
1574 if (rate
== IWL_INVALID_RATE
)
1575 rate
= IWL_RATE_6M_PLCP
;
1577 rate
= iwl4965_rate_get_lowest_plcp(priv
->active_rate_basic
& 0xF);
1578 if (rate
== IWL_INVALID_RATE
)
1579 rate
= IWL_RATE_1M_PLCP
;
1582 frame_size
= iwl4965_hw_get_beacon_cmd(priv
, frame
, rate
);
1584 rc
= iwl4965_send_cmd_pdu(priv
, REPLY_TX_BEACON
, frame_size
,
1587 iwl4965_free_frame(priv
, frame
);
1592 /******************************************************************************
1594 * EEPROM related functions
1596 ******************************************************************************/
1598 static void get_eeprom_mac(struct iwl4965_priv
*priv
, u8
*mac
)
1600 memcpy(mac
, priv
->eeprom
.mac_address
, 6);
1603 static inline void iwl4965_eeprom_release_semaphore(struct iwl4965_priv
*priv
)
1605 iwl4965_clear_bit(priv
, CSR_HW_IF_CONFIG_REG
,
1606 CSR_HW_IF_CONFIG_REG_BIT_EEPROM_OWN_SEM
);
1610 * iwl4965_eeprom_init - read EEPROM contents
1612 * Load the EEPROM contents from adapter into priv->eeprom
1614 * NOTE: This routine uses the non-debug IO access functions.
1616 int iwl4965_eeprom_init(struct iwl4965_priv
*priv
)
1618 u16
*e
= (u16
*)&priv
->eeprom
;
1619 u32 gp
= iwl4965_read32(priv
, CSR_EEPROM_GP
);
1621 int sz
= sizeof(priv
->eeprom
);
1626 /* The EEPROM structure has several padding buffers within it
1627 * and when adding new EEPROM maps is subject to programmer errors
1628 * which may be very difficult to identify without explicitly
1629 * checking the resulting size of the eeprom map. */
1630 BUILD_BUG_ON(sizeof(priv
->eeprom
) != IWL_EEPROM_IMAGE_SIZE
);
1632 if ((gp
& CSR_EEPROM_GP_VALID_MSK
) == CSR_EEPROM_GP_BAD_SIGNATURE
) {
1633 IWL_ERROR("EEPROM not found, EEPROM_GP=0x%08x", gp
);
1637 /* Make sure driver (instead of uCode) is allowed to read EEPROM */
1638 rc
= iwl4965_eeprom_acquire_semaphore(priv
);
1640 IWL_ERROR("Failed to acquire EEPROM semaphore.\n");
1644 /* eeprom is an array of 16bit values */
1645 for (addr
= 0; addr
< sz
; addr
+= sizeof(u16
)) {
1646 _iwl4965_write32(priv
, CSR_EEPROM_REG
, addr
<< 1);
1647 _iwl4965_clear_bit(priv
, CSR_EEPROM_REG
, CSR_EEPROM_REG_BIT_CMD
);
1649 for (i
= 0; i
< IWL_EEPROM_ACCESS_TIMEOUT
;
1650 i
+= IWL_EEPROM_ACCESS_DELAY
) {
1651 r
= _iwl4965_read_direct32(priv
, CSR_EEPROM_REG
);
1652 if (r
& CSR_EEPROM_REG_READ_VALID_MSK
)
1654 udelay(IWL_EEPROM_ACCESS_DELAY
);
1657 if (!(r
& CSR_EEPROM_REG_READ_VALID_MSK
)) {
1658 IWL_ERROR("Time out reading EEPROM[%d]", addr
);
1662 e
[addr
/ 2] = le16_to_cpu((__force __le16
)(r
>> 16));
1667 iwl4965_eeprom_release_semaphore(priv
);
1671 /******************************************************************************
1673 * Misc. internal state and helper functions
1675 ******************************************************************************/
1677 static void iwl4965_unset_hw_setting(struct iwl4965_priv
*priv
)
1679 if (priv
->hw_setting
.shared_virt
)
1680 pci_free_consistent(priv
->pci_dev
,
1681 sizeof(struct iwl4965_shared
),
1682 priv
->hw_setting
.shared_virt
,
1683 priv
->hw_setting
.shared_phys
);
1687 * iwl4965_supported_rate_to_ie - fill in the supported rate in IE field
1689 * return : set the bit for each supported rate insert in ie
1691 static u16
iwl4965_supported_rate_to_ie(u8
*ie
, u16 supported_rate
,
1692 u16 basic_rate
, int *left
)
1694 u16 ret_rates
= 0, bit
;
1699 for (bit
= 1, i
= 0; i
< IWL_RATE_COUNT
; i
++, bit
<<= 1) {
1700 if (bit
& supported_rate
) {
1702 rates
[*cnt
] = iwl4965_rates
[i
].ieee
|
1703 ((bit
& basic_rate
) ? 0x80 : 0x00);
1707 (*cnt
>= IWL_SUPPORTED_RATES_IE_LEN
))
1716 * iwl4965_fill_probe_req - fill in all required fields and IE for probe request
1718 static u16
iwl4965_fill_probe_req(struct iwl4965_priv
*priv
,
1719 enum ieee80211_band band
,
1720 struct ieee80211_mgmt
*frame
,
1721 int left
, int is_direct
)
1725 u16 active_rates
, ret_rates
, cck_rates
, active_rate_basic
;
1726 #ifdef CONFIG_IWL4965_HT
1727 const struct ieee80211_supported_band
*sband
=
1728 iwl4965_get_hw_mode(priv
, band
);
1729 #endif /* CONFIG_IWL4965_HT */
1731 /* Make sure there is enough space for the probe request,
1732 * two mandatory IEs and the data */
1738 frame
->frame_control
= cpu_to_le16(IEEE80211_STYPE_PROBE_REQ
);
1739 memcpy(frame
->da
, iwl4965_broadcast_addr
, ETH_ALEN
);
1740 memcpy(frame
->sa
, priv
->mac_addr
, ETH_ALEN
);
1741 memcpy(frame
->bssid
, iwl4965_broadcast_addr
, ETH_ALEN
);
1742 frame
->seq_ctrl
= 0;
1744 /* fill in our indirect SSID IE */
1751 pos
= &(frame
->u
.probe_req
.variable
[0]);
1752 *pos
++ = WLAN_EID_SSID
;
1755 /* fill in our direct SSID IE... */
1758 left
-= 2 + priv
->essid_len
;
1761 /* ... fill it in... */
1762 *pos
++ = WLAN_EID_SSID
;
1763 *pos
++ = priv
->essid_len
;
1764 memcpy(pos
, priv
->essid
, priv
->essid_len
);
1765 pos
+= priv
->essid_len
;
1766 len
+= 2 + priv
->essid_len
;
1769 /* fill in supported rate */
1775 /* ... fill it in... */
1776 *pos
++ = WLAN_EID_SUPP_RATES
;
1779 /* exclude 60M rate */
1780 active_rates
= priv
->rates_mask
;
1781 active_rates
&= ~IWL_RATE_60M_MASK
;
1783 active_rate_basic
= active_rates
& IWL_BASIC_RATES_MASK
;
1785 cck_rates
= IWL_CCK_RATES_MASK
& active_rates
;
1786 ret_rates
= iwl4965_supported_rate_to_ie(pos
, cck_rates
,
1787 active_rate_basic
, &left
);
1788 active_rates
&= ~ret_rates
;
1790 ret_rates
= iwl4965_supported_rate_to_ie(pos
, active_rates
,
1791 active_rate_basic
, &left
);
1792 active_rates
&= ~ret_rates
;
1796 if (active_rates
== 0)
1799 /* fill in supported extended rate */
1804 /* ... fill it in... */
1805 *pos
++ = WLAN_EID_EXT_SUPP_RATES
;
1807 iwl4965_supported_rate_to_ie(pos
, active_rates
,
1808 active_rate_basic
, &left
);
1812 #ifdef CONFIG_IWL4965_HT
1813 if (sband
&& sband
->ht_info
.ht_supported
) {
1814 struct ieee80211_ht_cap
*ht_cap
;
1816 *pos
++ = WLAN_EID_HT_CAPABILITY
;
1817 *pos
++ = sizeof(struct ieee80211_ht_cap
);
1818 ht_cap
= (struct ieee80211_ht_cap
*)pos
;
1819 ht_cap
->cap_info
= cpu_to_le16(sband
->ht_info
.cap
);
1820 memcpy(ht_cap
->supp_mcs_set
, sband
->ht_info
.supp_mcs_set
, 16);
1821 ht_cap
->ampdu_params_info
=(sband
->ht_info
.ampdu_factor
&
1822 IEEE80211_HT_CAP_AMPDU_FACTOR
) |
1823 ((sband
->ht_info
.ampdu_density
<< 2) &
1824 IEEE80211_HT_CAP_AMPDU_DENSITY
);
1825 len
+= 2 + sizeof(struct ieee80211_ht_cap
);
1827 #endif /*CONFIG_IWL4965_HT */
1836 static int iwl4965_send_qos_params_command(struct iwl4965_priv
*priv
,
1837 struct iwl4965_qosparam_cmd
*qos
)
1840 return iwl4965_send_cmd_pdu(priv
, REPLY_QOS_PARAM
,
1841 sizeof(struct iwl4965_qosparam_cmd
), qos
);
1844 static void iwl4965_reset_qos(struct iwl4965_priv
*priv
)
1850 unsigned long flags
;
1853 spin_lock_irqsave(&priv
->lock
, flags
);
1854 priv
->qos_data
.qos_active
= 0;
1856 if (priv
->iw_mode
== IEEE80211_IF_TYPE_IBSS
) {
1857 if (priv
->qos_data
.qos_enable
)
1858 priv
->qos_data
.qos_active
= 1;
1859 if (!(priv
->active_rate
& 0xfff0)) {
1863 } else if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) {
1864 if (priv
->qos_data
.qos_enable
)
1865 priv
->qos_data
.qos_active
= 1;
1866 } else if (!(priv
->staging_rxon
.flags
& RXON_FLG_SHORT_SLOT_MSK
)) {
1871 if (priv
->qos_data
.qos_active
)
1874 priv
->qos_data
.def_qos_parm
.ac
[0].cw_min
= cpu_to_le16(cw_min
);
1875 priv
->qos_data
.def_qos_parm
.ac
[0].cw_max
= cpu_to_le16(cw_max
);
1876 priv
->qos_data
.def_qos_parm
.ac
[0].aifsn
= aifs
;
1877 priv
->qos_data
.def_qos_parm
.ac
[0].edca_txop
= 0;
1878 priv
->qos_data
.def_qos_parm
.ac
[0].reserved1
= 0;
1880 if (priv
->qos_data
.qos_active
) {
1882 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_min
= cpu_to_le16(cw_min
);
1883 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_max
= cpu_to_le16(cw_max
);
1884 priv
->qos_data
.def_qos_parm
.ac
[i
].aifsn
= 7;
1885 priv
->qos_data
.def_qos_parm
.ac
[i
].edca_txop
= 0;
1886 priv
->qos_data
.def_qos_parm
.ac
[i
].reserved1
= 0;
1889 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_min
=
1890 cpu_to_le16((cw_min
+ 1) / 2 - 1);
1891 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_max
=
1892 cpu_to_le16(cw_max
);
1893 priv
->qos_data
.def_qos_parm
.ac
[i
].aifsn
= 2;
1895 priv
->qos_data
.def_qos_parm
.ac
[i
].edca_txop
=
1898 priv
->qos_data
.def_qos_parm
.ac
[i
].edca_txop
=
1900 priv
->qos_data
.def_qos_parm
.ac
[i
].reserved1
= 0;
1903 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_min
=
1904 cpu_to_le16((cw_min
+ 1) / 4 - 1);
1905 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_max
=
1906 cpu_to_le16((cw_max
+ 1) / 2 - 1);
1907 priv
->qos_data
.def_qos_parm
.ac
[i
].aifsn
= 2;
1908 priv
->qos_data
.def_qos_parm
.ac
[i
].reserved1
= 0;
1910 priv
->qos_data
.def_qos_parm
.ac
[i
].edca_txop
=
1913 priv
->qos_data
.def_qos_parm
.ac
[i
].edca_txop
=
1916 for (i
= 1; i
< 4; i
++) {
1917 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_min
=
1918 cpu_to_le16(cw_min
);
1919 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_max
=
1920 cpu_to_le16(cw_max
);
1921 priv
->qos_data
.def_qos_parm
.ac
[i
].aifsn
= aifs
;
1922 priv
->qos_data
.def_qos_parm
.ac
[i
].edca_txop
= 0;
1923 priv
->qos_data
.def_qos_parm
.ac
[i
].reserved1
= 0;
1926 IWL_DEBUG_QOS("set QoS to default \n");
1928 spin_unlock_irqrestore(&priv
->lock
, flags
);
1931 static void iwl4965_activate_qos(struct iwl4965_priv
*priv
, u8 force
)
1933 unsigned long flags
;
1935 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
1938 if (!priv
->qos_data
.qos_enable
)
1941 spin_lock_irqsave(&priv
->lock
, flags
);
1942 priv
->qos_data
.def_qos_parm
.qos_flags
= 0;
1944 if (priv
->qos_data
.qos_cap
.q_AP
.queue_request
&&
1945 !priv
->qos_data
.qos_cap
.q_AP
.txop_request
)
1946 priv
->qos_data
.def_qos_parm
.qos_flags
|=
1947 QOS_PARAM_FLG_TXOP_TYPE_MSK
;
1948 if (priv
->qos_data
.qos_active
)
1949 priv
->qos_data
.def_qos_parm
.qos_flags
|=
1950 QOS_PARAM_FLG_UPDATE_EDCA_MSK
;
1952 #ifdef CONFIG_IWL4965_HT
1953 if (priv
->current_ht_config
.is_ht
)
1954 priv
->qos_data
.def_qos_parm
.qos_flags
|= QOS_PARAM_FLG_TGN_MSK
;
1955 #endif /* CONFIG_IWL4965_HT */
1957 spin_unlock_irqrestore(&priv
->lock
, flags
);
1959 if (force
|| iwl4965_is_associated(priv
)) {
1960 IWL_DEBUG_QOS("send QoS cmd with Qos active=%d FLAGS=0x%X\n",
1961 priv
->qos_data
.qos_active
,
1962 priv
->qos_data
.def_qos_parm
.qos_flags
);
1964 iwl4965_send_qos_params_command(priv
,
1965 &(priv
->qos_data
.def_qos_parm
));
1970 * Power management (not Tx power!) functions
1972 #define MSEC_TO_USEC 1024
1974 #define NOSLP __constant_cpu_to_le16(0), 0, 0
1975 #define SLP IWL_POWER_DRIVER_ALLOW_SLEEP_MSK, 0, 0
1976 #define SLP_TIMEOUT(T) __constant_cpu_to_le32((T) * MSEC_TO_USEC)
1977 #define SLP_VEC(X0, X1, X2, X3, X4) {__constant_cpu_to_le32(X0), \
1978 __constant_cpu_to_le32(X1), \
1979 __constant_cpu_to_le32(X2), \
1980 __constant_cpu_to_le32(X3), \
1981 __constant_cpu_to_le32(X4)}
1984 /* default power management (not Tx power) table values */
1986 static struct iwl4965_power_vec_entry range_0
[IWL_POWER_AC
] = {
1987 {{NOSLP
, SLP_TIMEOUT(0), SLP_TIMEOUT(0), SLP_VEC(0, 0, 0, 0, 0)}, 0},
1988 {{SLP
, SLP_TIMEOUT(200), SLP_TIMEOUT(500), SLP_VEC(1, 2, 3, 4, 4)}, 0},
1989 {{SLP
, SLP_TIMEOUT(200), SLP_TIMEOUT(300), SLP_VEC(2, 4, 6, 7, 7)}, 0},
1990 {{SLP
, SLP_TIMEOUT(50), SLP_TIMEOUT(100), SLP_VEC(2, 6, 9, 9, 10)}, 0},
1991 {{SLP
, SLP_TIMEOUT(50), SLP_TIMEOUT(25), SLP_VEC(2, 7, 9, 9, 10)}, 1},
1992 {{SLP
, SLP_TIMEOUT(25), SLP_TIMEOUT(25), SLP_VEC(4, 7, 10, 10, 10)}, 1}
1996 static struct iwl4965_power_vec_entry range_1
[IWL_POWER_AC
] = {
1997 {{NOSLP
, SLP_TIMEOUT(0), SLP_TIMEOUT(0), SLP_VEC(0, 0, 0, 0, 0)}, 0},
1998 {{SLP
, SLP_TIMEOUT(200), SLP_TIMEOUT(500),
1999 SLP_VEC(1, 2, 3, 4, 0xFF)}, 0},
2000 {{SLP
, SLP_TIMEOUT(200), SLP_TIMEOUT(300),
2001 SLP_VEC(2, 4, 6, 7, 0xFF)}, 0},
2002 {{SLP
, SLP_TIMEOUT(50), SLP_TIMEOUT(100),
2003 SLP_VEC(2, 6, 9, 9, 0xFF)}, 0},
2004 {{SLP
, SLP_TIMEOUT(50), SLP_TIMEOUT(25), SLP_VEC(2, 7, 9, 9, 0xFF)}, 0},
2005 {{SLP
, SLP_TIMEOUT(25), SLP_TIMEOUT(25),
2006 SLP_VEC(4, 7, 10, 10, 0xFF)}, 0}
2009 int iwl4965_power_init_handle(struct iwl4965_priv
*priv
)
2012 struct iwl4965_power_mgr
*pow_data
;
2013 int size
= sizeof(struct iwl4965_power_vec_entry
) * IWL_POWER_AC
;
2016 IWL_DEBUG_POWER("Initialize power \n");
2018 pow_data
= &(priv
->power_data
);
2020 memset(pow_data
, 0, sizeof(*pow_data
));
2022 pow_data
->active_index
= IWL_POWER_RANGE_0
;
2023 pow_data
->dtim_val
= 0xffff;
2025 memcpy(&pow_data
->pwr_range_0
[0], &range_0
[0], size
);
2026 memcpy(&pow_data
->pwr_range_1
[0], &range_1
[0], size
);
2028 rc
= pci_read_config_word(priv
->pci_dev
, PCI_LINK_CTRL
, &pci_pm
);
2032 struct iwl4965_powertable_cmd
*cmd
;
2034 IWL_DEBUG_POWER("adjust power command flags\n");
2036 for (i
= 0; i
< IWL_POWER_AC
; i
++) {
2037 cmd
= &pow_data
->pwr_range_0
[i
].cmd
;
2040 cmd
->flags
&= ~IWL_POWER_PCI_PM_MSK
;
2042 cmd
->flags
|= IWL_POWER_PCI_PM_MSK
;
2048 static int iwl4965_update_power_cmd(struct iwl4965_priv
*priv
,
2049 struct iwl4965_powertable_cmd
*cmd
, u32 mode
)
2054 struct iwl4965_power_vec_entry
*range
;
2056 struct iwl4965_power_mgr
*pow_data
;
2058 if (mode
> IWL_POWER_INDEX_5
) {
2059 IWL_DEBUG_POWER("Error invalid power mode \n");
2062 pow_data
= &(priv
->power_data
);
2064 if (pow_data
->active_index
== IWL_POWER_RANGE_0
)
2065 range
= &pow_data
->pwr_range_0
[0];
2067 range
= &pow_data
->pwr_range_1
[1];
2069 memcpy(cmd
, &range
[mode
].cmd
, sizeof(struct iwl4965_powertable_cmd
));
2071 #ifdef IWL_MAC80211_DISABLE
2072 if (priv
->assoc_network
!= NULL
) {
2073 unsigned long flags
;
2075 period
= priv
->assoc_network
->tim
.tim_period
;
2077 #endif /*IWL_MAC80211_DISABLE */
2078 skip
= range
[mode
].no_dtim
;
2087 cmd
->flags
&= ~IWL_POWER_SLEEP_OVER_DTIM_MSK
;
2089 __le32 slp_itrvl
= cmd
->sleep_interval
[IWL_POWER_VEC_SIZE
- 1];
2090 max_sleep
= (le32_to_cpu(slp_itrvl
) / period
) * period
;
2091 cmd
->flags
|= IWL_POWER_SLEEP_OVER_DTIM_MSK
;
2094 for (i
= 0; i
< IWL_POWER_VEC_SIZE
; i
++) {
2095 if (le32_to_cpu(cmd
->sleep_interval
[i
]) > max_sleep
)
2096 cmd
->sleep_interval
[i
] = cpu_to_le32(max_sleep
);
2099 IWL_DEBUG_POWER("Flags value = 0x%08X\n", cmd
->flags
);
2100 IWL_DEBUG_POWER("Tx timeout = %u\n", le32_to_cpu(cmd
->tx_data_timeout
));
2101 IWL_DEBUG_POWER("Rx timeout = %u\n", le32_to_cpu(cmd
->rx_data_timeout
));
2102 IWL_DEBUG_POWER("Sleep interval vector = { %d , %d , %d , %d , %d }\n",
2103 le32_to_cpu(cmd
->sleep_interval
[0]),
2104 le32_to_cpu(cmd
->sleep_interval
[1]),
2105 le32_to_cpu(cmd
->sleep_interval
[2]),
2106 le32_to_cpu(cmd
->sleep_interval
[3]),
2107 le32_to_cpu(cmd
->sleep_interval
[4]));
2112 static int iwl4965_send_power_mode(struct iwl4965_priv
*priv
, u32 mode
)
2114 u32
uninitialized_var(final_mode
);
2116 struct iwl4965_powertable_cmd cmd
;
2118 /* If on battery, set to 3,
2119 * if plugged into AC power, set to CAM ("continuously aware mode"),
2120 * else user level */
2122 case IWL_POWER_BATTERY
:
2123 final_mode
= IWL_POWER_INDEX_3
;
2126 final_mode
= IWL_POWER_MODE_CAM
;
2133 cmd
.keep_alive_beacons
= 0;
2135 iwl4965_update_power_cmd(priv
, &cmd
, final_mode
);
2137 rc
= iwl4965_send_cmd_pdu(priv
, POWER_TABLE_CMD
, sizeof(cmd
), &cmd
);
2139 if (final_mode
== IWL_POWER_MODE_CAM
)
2140 clear_bit(STATUS_POWER_PMI
, &priv
->status
);
2142 set_bit(STATUS_POWER_PMI
, &priv
->status
);
2147 int iwl4965_is_network_packet(struct iwl4965_priv
*priv
, struct ieee80211_hdr
*header
)
2149 /* Filter incoming packets to determine if they are targeted toward
2150 * this network, discarding packets coming from ourselves */
2151 switch (priv
->iw_mode
) {
2152 case IEEE80211_IF_TYPE_IBSS
: /* Header: Dest. | Source | BSSID */
2153 /* packets from our adapter are dropped (echo) */
2154 if (!compare_ether_addr(header
->addr2
, priv
->mac_addr
))
2156 /* {broad,multi}cast packets to our IBSS go through */
2157 if (is_multicast_ether_addr(header
->addr1
))
2158 return !compare_ether_addr(header
->addr3
, priv
->bssid
);
2159 /* packets to our adapter go through */
2160 return !compare_ether_addr(header
->addr1
, priv
->mac_addr
);
2161 case IEEE80211_IF_TYPE_STA
: /* Header: Dest. | AP{BSSID} | Source */
2162 /* packets from our adapter are dropped (echo) */
2163 if (!compare_ether_addr(header
->addr3
, priv
->mac_addr
))
2165 /* {broad,multi}cast packets to our BSS go through */
2166 if (is_multicast_ether_addr(header
->addr1
))
2167 return !compare_ether_addr(header
->addr2
, priv
->bssid
);
2168 /* packets to our adapter go through */
2169 return !compare_ether_addr(header
->addr1
, priv
->mac_addr
);
2175 #define TX_STATUS_ENTRY(x) case TX_STATUS_FAIL_ ## x: return #x
2177 static const char *iwl4965_get_tx_fail_reason(u32 status
)
2179 switch (status
& TX_STATUS_MSK
) {
2180 case TX_STATUS_SUCCESS
:
2182 TX_STATUS_ENTRY(SHORT_LIMIT
);
2183 TX_STATUS_ENTRY(LONG_LIMIT
);
2184 TX_STATUS_ENTRY(FIFO_UNDERRUN
);
2185 TX_STATUS_ENTRY(MGMNT_ABORT
);
2186 TX_STATUS_ENTRY(NEXT_FRAG
);
2187 TX_STATUS_ENTRY(LIFE_EXPIRE
);
2188 TX_STATUS_ENTRY(DEST_PS
);
2189 TX_STATUS_ENTRY(ABORTED
);
2190 TX_STATUS_ENTRY(BT_RETRY
);
2191 TX_STATUS_ENTRY(STA_INVALID
);
2192 TX_STATUS_ENTRY(FRAG_DROPPED
);
2193 TX_STATUS_ENTRY(TID_DISABLE
);
2194 TX_STATUS_ENTRY(FRAME_FLUSHED
);
2195 TX_STATUS_ENTRY(INSUFFICIENT_CF_POLL
);
2196 TX_STATUS_ENTRY(TX_LOCKED
);
2197 TX_STATUS_ENTRY(NO_BEACON_ON_RADAR
);
2204 * iwl4965_scan_cancel - Cancel any currently executing HW scan
2206 * NOTE: priv->mutex is not required before calling this function
2208 static int iwl4965_scan_cancel(struct iwl4965_priv
*priv
)
2210 if (!test_bit(STATUS_SCAN_HW
, &priv
->status
)) {
2211 clear_bit(STATUS_SCANNING
, &priv
->status
);
2215 if (test_bit(STATUS_SCANNING
, &priv
->status
)) {
2216 if (!test_bit(STATUS_SCAN_ABORTING
, &priv
->status
)) {
2217 IWL_DEBUG_SCAN("Queuing scan abort.\n");
2218 set_bit(STATUS_SCAN_ABORTING
, &priv
->status
);
2219 queue_work(priv
->workqueue
, &priv
->abort_scan
);
2222 IWL_DEBUG_SCAN("Scan abort already in progress.\n");
2224 return test_bit(STATUS_SCANNING
, &priv
->status
);
2231 * iwl4965_scan_cancel_timeout - Cancel any currently executing HW scan
2232 * @ms: amount of time to wait (in milliseconds) for scan to abort
2234 * NOTE: priv->mutex must be held before calling this function
2236 static int iwl4965_scan_cancel_timeout(struct iwl4965_priv
*priv
, unsigned long ms
)
2238 unsigned long now
= jiffies
;
2241 ret
= iwl4965_scan_cancel(priv
);
2243 mutex_unlock(&priv
->mutex
);
2244 while (!time_after(jiffies
, now
+ msecs_to_jiffies(ms
)) &&
2245 test_bit(STATUS_SCANNING
, &priv
->status
))
2247 mutex_lock(&priv
->mutex
);
2249 return test_bit(STATUS_SCANNING
, &priv
->status
);
2255 static void iwl4965_sequence_reset(struct iwl4965_priv
*priv
)
2257 /* Reset ieee stats */
2259 /* We don't reset the net_device_stats (ieee->stats) on
2262 priv
->last_seq_num
= -1;
2263 priv
->last_frag_num
= -1;
2264 priv
->last_packet_time
= 0;
2266 iwl4965_scan_cancel(priv
);
2269 #define MAX_UCODE_BEACON_INTERVAL 4096
2270 #define INTEL_CONN_LISTEN_INTERVAL __constant_cpu_to_le16(0xA)
2272 static __le16
iwl4965_adjust_beacon_interval(u16 beacon_val
)
2275 u16 beacon_factor
= 0;
2278 (beacon_val
+ MAX_UCODE_BEACON_INTERVAL
)
2279 / MAX_UCODE_BEACON_INTERVAL
;
2280 new_val
= beacon_val
/ beacon_factor
;
2282 return cpu_to_le16(new_val
);
2285 static void iwl4965_setup_rxon_timing(struct iwl4965_priv
*priv
)
2287 u64 interval_tm_unit
;
2289 unsigned long flags
;
2290 struct ieee80211_conf
*conf
= NULL
;
2293 conf
= ieee80211_get_hw_conf(priv
->hw
);
2295 spin_lock_irqsave(&priv
->lock
, flags
);
2296 priv
->rxon_timing
.timestamp
.dw
[1] = cpu_to_le32(priv
->timestamp1
);
2297 priv
->rxon_timing
.timestamp
.dw
[0] = cpu_to_le32(priv
->timestamp0
);
2299 priv
->rxon_timing
.listen_interval
= INTEL_CONN_LISTEN_INTERVAL
;
2301 tsf
= priv
->timestamp1
;
2302 tsf
= ((tsf
<< 32) | priv
->timestamp0
);
2304 beacon_int
= priv
->beacon_int
;
2305 spin_unlock_irqrestore(&priv
->lock
, flags
);
2307 if (priv
->iw_mode
== IEEE80211_IF_TYPE_STA
) {
2308 if (beacon_int
== 0) {
2309 priv
->rxon_timing
.beacon_interval
= cpu_to_le16(100);
2310 priv
->rxon_timing
.beacon_init_val
= cpu_to_le32(102400);
2312 priv
->rxon_timing
.beacon_interval
=
2313 cpu_to_le16(beacon_int
);
2314 priv
->rxon_timing
.beacon_interval
=
2315 iwl4965_adjust_beacon_interval(
2316 le16_to_cpu(priv
->rxon_timing
.beacon_interval
));
2319 priv
->rxon_timing
.atim_window
= 0;
2321 priv
->rxon_timing
.beacon_interval
=
2322 iwl4965_adjust_beacon_interval(conf
->beacon_int
);
2323 /* TODO: we need to get atim_window from upper stack
2324 * for now we set to 0 */
2325 priv
->rxon_timing
.atim_window
= 0;
2329 (le16_to_cpu(priv
->rxon_timing
.beacon_interval
) * 1024);
2330 result
= do_div(tsf
, interval_tm_unit
);
2331 priv
->rxon_timing
.beacon_init_val
=
2332 cpu_to_le32((u32
) ((u64
) interval_tm_unit
- result
));
2335 ("beacon interval %d beacon timer %d beacon tim %d\n",
2336 le16_to_cpu(priv
->rxon_timing
.beacon_interval
),
2337 le32_to_cpu(priv
->rxon_timing
.beacon_init_val
),
2338 le16_to_cpu(priv
->rxon_timing
.atim_window
));
2341 static int iwl4965_scan_initiate(struct iwl4965_priv
*priv
)
2343 if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) {
2344 IWL_ERROR("APs don't scan.\n");
2348 if (!iwl4965_is_ready_rf(priv
)) {
2349 IWL_DEBUG_SCAN("Aborting scan due to not ready.\n");
2353 if (test_bit(STATUS_SCANNING
, &priv
->status
)) {
2354 IWL_DEBUG_SCAN("Scan already in progress.\n");
2358 if (test_bit(STATUS_SCAN_ABORTING
, &priv
->status
)) {
2359 IWL_DEBUG_SCAN("Scan request while abort pending. "
2364 IWL_DEBUG_INFO("Starting scan...\n");
2365 priv
->scan_bands
= 2;
2366 set_bit(STATUS_SCANNING
, &priv
->status
);
2367 priv
->scan_start
= jiffies
;
2368 priv
->scan_pass_start
= priv
->scan_start
;
2370 queue_work(priv
->workqueue
, &priv
->request_scan
);
2375 static int iwl4965_set_rxon_hwcrypto(struct iwl4965_priv
*priv
, int hw_decrypt
)
2377 struct iwl4965_rxon_cmd
*rxon
= &priv
->staging_rxon
;
2380 rxon
->filter_flags
&= ~RXON_FILTER_DIS_DECRYPT_MSK
;
2382 rxon
->filter_flags
|= RXON_FILTER_DIS_DECRYPT_MSK
;
2387 static void iwl4965_set_flags_for_phymode(struct iwl4965_priv
*priv
,
2388 enum ieee80211_band band
)
2390 if (band
== IEEE80211_BAND_5GHZ
) {
2391 priv
->staging_rxon
.flags
&=
2392 ~(RXON_FLG_BAND_24G_MSK
| RXON_FLG_AUTO_DETECT_MSK
2393 | RXON_FLG_CCK_MSK
);
2394 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_SLOT_MSK
;
2396 /* Copied from iwl4965_bg_post_associate() */
2397 if (priv
->assoc_capability
& WLAN_CAPABILITY_SHORT_SLOT_TIME
)
2398 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_SLOT_MSK
;
2400 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_SLOT_MSK
;
2402 if (priv
->iw_mode
== IEEE80211_IF_TYPE_IBSS
)
2403 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_SLOT_MSK
;
2405 priv
->staging_rxon
.flags
|= RXON_FLG_BAND_24G_MSK
;
2406 priv
->staging_rxon
.flags
|= RXON_FLG_AUTO_DETECT_MSK
;
2407 priv
->staging_rxon
.flags
&= ~RXON_FLG_CCK_MSK
;
2412 * initialize rxon structure with default values from eeprom
2414 static void iwl4965_connection_init_rx_config(struct iwl4965_priv
*priv
)
2416 const struct iwl4965_channel_info
*ch_info
;
2418 memset(&priv
->staging_rxon
, 0, sizeof(priv
->staging_rxon
));
2420 switch (priv
->iw_mode
) {
2421 case IEEE80211_IF_TYPE_AP
:
2422 priv
->staging_rxon
.dev_type
= RXON_DEV_TYPE_AP
;
2425 case IEEE80211_IF_TYPE_STA
:
2426 priv
->staging_rxon
.dev_type
= RXON_DEV_TYPE_ESS
;
2427 priv
->staging_rxon
.filter_flags
= RXON_FILTER_ACCEPT_GRP_MSK
;
2430 case IEEE80211_IF_TYPE_IBSS
:
2431 priv
->staging_rxon
.dev_type
= RXON_DEV_TYPE_IBSS
;
2432 priv
->staging_rxon
.flags
= RXON_FLG_SHORT_PREAMBLE_MSK
;
2433 priv
->staging_rxon
.filter_flags
= RXON_FILTER_BCON_AWARE_MSK
|
2434 RXON_FILTER_ACCEPT_GRP_MSK
;
2437 case IEEE80211_IF_TYPE_MNTR
:
2438 priv
->staging_rxon
.dev_type
= RXON_DEV_TYPE_SNIFFER
;
2439 priv
->staging_rxon
.filter_flags
= RXON_FILTER_PROMISC_MSK
|
2440 RXON_FILTER_CTL2HOST_MSK
| RXON_FILTER_ACCEPT_GRP_MSK
;
2445 /* TODO: Figure out when short_preamble would be set and cache from
2447 if (!hw_to_local(priv
->hw
)->short_preamble
)
2448 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_PREAMBLE_MSK
;
2450 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_PREAMBLE_MSK
;
2453 ch_info
= iwl4965_get_channel_info(priv
, priv
->band
,
2454 le16_to_cpu(priv
->staging_rxon
.channel
));
2457 ch_info
= &priv
->channel_info
[0];
2460 * in some case A channels are all non IBSS
2461 * in this case force B/G channel
2463 if ((priv
->iw_mode
== IEEE80211_IF_TYPE_IBSS
) &&
2464 !(is_channel_ibss(ch_info
)))
2465 ch_info
= &priv
->channel_info
[0];
2467 priv
->staging_rxon
.channel
= cpu_to_le16(ch_info
->channel
);
2468 priv
->band
= ch_info
->band
;
2470 iwl4965_set_flags_for_phymode(priv
, priv
->band
);
2472 priv
->staging_rxon
.ofdm_basic_rates
=
2473 (IWL_OFDM_RATES_MASK
>> IWL_FIRST_OFDM_RATE
) & 0xFF;
2474 priv
->staging_rxon
.cck_basic_rates
=
2475 (IWL_CCK_RATES_MASK
>> IWL_FIRST_CCK_RATE
) & 0xF;
2477 priv
->staging_rxon
.flags
&= ~(RXON_FLG_CHANNEL_MODE_MIXED_MSK
|
2478 RXON_FLG_CHANNEL_MODE_PURE_40_MSK
);
2479 memcpy(priv
->staging_rxon
.node_addr
, priv
->mac_addr
, ETH_ALEN
);
2480 memcpy(priv
->staging_rxon
.wlap_bssid_addr
, priv
->mac_addr
, ETH_ALEN
);
2481 priv
->staging_rxon
.ofdm_ht_single_stream_basic_rates
= 0xff;
2482 priv
->staging_rxon
.ofdm_ht_dual_stream_basic_rates
= 0xff;
2483 iwl4965_set_rxon_chain(priv
);
2486 static int iwl4965_set_mode(struct iwl4965_priv
*priv
, int mode
)
2488 if (mode
== IEEE80211_IF_TYPE_IBSS
) {
2489 const struct iwl4965_channel_info
*ch_info
;
2491 ch_info
= iwl4965_get_channel_info(priv
,
2493 le16_to_cpu(priv
->staging_rxon
.channel
));
2495 if (!ch_info
|| !is_channel_ibss(ch_info
)) {
2496 IWL_ERROR("channel %d not IBSS channel\n",
2497 le16_to_cpu(priv
->staging_rxon
.channel
));
2502 priv
->iw_mode
= mode
;
2504 iwl4965_connection_init_rx_config(priv
);
2505 memcpy(priv
->staging_rxon
.node_addr
, priv
->mac_addr
, ETH_ALEN
);
2507 iwl4965_clear_stations_table(priv
);
2509 /* dont commit rxon if rf-kill is on*/
2510 if (!iwl4965_is_ready_rf(priv
))
2513 cancel_delayed_work(&priv
->scan_check
);
2514 if (iwl4965_scan_cancel_timeout(priv
, 100)) {
2515 IWL_WARNING("Aborted scan still in progress after 100ms\n");
2516 IWL_DEBUG_MAC80211("leaving - scan abort failed.\n");
2520 iwl4965_commit_rxon(priv
);
2525 static void iwl4965_build_tx_cmd_hwcrypto(struct iwl4965_priv
*priv
,
2526 struct ieee80211_tx_control
*ctl
,
2527 struct iwl4965_cmd
*cmd
,
2528 struct sk_buff
*skb_frag
,
2531 struct iwl4965_hw_key
*keyinfo
= &priv
->stations
[ctl
->key_idx
].keyinfo
;
2533 switch (keyinfo
->alg
) {
2535 cmd
->cmd
.tx
.sec_ctl
= TX_CMD_SEC_CCM
;
2536 memcpy(cmd
->cmd
.tx
.key
, keyinfo
->key
, keyinfo
->keylen
);
2537 IWL_DEBUG_TX("tx_cmd with aes hwcrypto\n");
2542 cmd
->cmd
.tx
.sec_ctl
= TX_CMD_SEC_TKIP
;
2545 memcpy(cmd
->cmd
.tx
.tkip_mic
.byte
, skb_frag
->tail
- 8,
2548 memset(cmd
->cmd
.tx
.tkip_mic
.byte
, 0, 8);
2553 cmd
->cmd
.tx
.sec_ctl
= TX_CMD_SEC_WEP
|
2554 (ctl
->key_idx
& TX_CMD_SEC_MSK
) << TX_CMD_SEC_SHIFT
;
2556 if (keyinfo
->keylen
== 13)
2557 cmd
->cmd
.tx
.sec_ctl
|= TX_CMD_SEC_KEY128
;
2559 memcpy(&cmd
->cmd
.tx
.key
[3], keyinfo
->key
, keyinfo
->keylen
);
2561 IWL_DEBUG_TX("Configuring packet for WEP encryption "
2562 "with key %d\n", ctl
->key_idx
);
2566 printk(KERN_ERR
"Unknown encode alg %d\n", keyinfo
->alg
);
2572 * handle build REPLY_TX command notification.
2574 static void iwl4965_build_tx_cmd_basic(struct iwl4965_priv
*priv
,
2575 struct iwl4965_cmd
*cmd
,
2576 struct ieee80211_tx_control
*ctrl
,
2577 struct ieee80211_hdr
*hdr
,
2578 int is_unicast
, u8 std_id
)
2581 u16 fc
= le16_to_cpu(hdr
->frame_control
);
2582 __le32 tx_flags
= cmd
->cmd
.tx
.tx_flags
;
2584 cmd
->cmd
.tx
.stop_time
.life_time
= TX_CMD_LIFE_TIME_INFINITE
;
2585 if (!(ctrl
->flags
& IEEE80211_TXCTL_NO_ACK
)) {
2586 tx_flags
|= TX_CMD_FLG_ACK_MSK
;
2587 if ((fc
& IEEE80211_FCTL_FTYPE
) == IEEE80211_FTYPE_MGMT
)
2588 tx_flags
|= TX_CMD_FLG_SEQ_CTL_MSK
;
2589 if (ieee80211_is_probe_response(fc
) &&
2590 !(le16_to_cpu(hdr
->seq_ctrl
) & 0xf))
2591 tx_flags
|= TX_CMD_FLG_TSF_MSK
;
2593 tx_flags
&= (~TX_CMD_FLG_ACK_MSK
);
2594 tx_flags
|= TX_CMD_FLG_SEQ_CTL_MSK
;
2597 if (ieee80211_is_back_request(fc
))
2598 tx_flags
|= TX_CMD_FLG_ACK_MSK
| TX_CMD_FLG_IMM_BA_RSP_MASK
;
2601 cmd
->cmd
.tx
.sta_id
= std_id
;
2602 if (ieee80211_get_morefrag(hdr
))
2603 tx_flags
|= TX_CMD_FLG_MORE_FRAG_MSK
;
2605 qc
= ieee80211_get_qos_ctrl(hdr
);
2607 cmd
->cmd
.tx
.tid_tspec
= (u8
) (le16_to_cpu(*qc
) & 0xf);
2608 tx_flags
&= ~TX_CMD_FLG_SEQ_CTL_MSK
;
2610 tx_flags
|= TX_CMD_FLG_SEQ_CTL_MSK
;
2612 if (ctrl
->flags
& IEEE80211_TXCTL_USE_RTS_CTS
) {
2613 tx_flags
|= TX_CMD_FLG_RTS_MSK
;
2614 tx_flags
&= ~TX_CMD_FLG_CTS_MSK
;
2615 } else if (ctrl
->flags
& IEEE80211_TXCTL_USE_CTS_PROTECT
) {
2616 tx_flags
&= ~TX_CMD_FLG_RTS_MSK
;
2617 tx_flags
|= TX_CMD_FLG_CTS_MSK
;
2620 if ((tx_flags
& TX_CMD_FLG_RTS_MSK
) || (tx_flags
& TX_CMD_FLG_CTS_MSK
))
2621 tx_flags
|= TX_CMD_FLG_FULL_TXOP_PROT_MSK
;
2623 tx_flags
&= ~(TX_CMD_FLG_ANT_SEL_MSK
);
2624 if ((fc
& IEEE80211_FCTL_FTYPE
) == IEEE80211_FTYPE_MGMT
) {
2625 if ((fc
& IEEE80211_FCTL_STYPE
) == IEEE80211_STYPE_ASSOC_REQ
||
2626 (fc
& IEEE80211_FCTL_STYPE
) == IEEE80211_STYPE_REASSOC_REQ
)
2627 cmd
->cmd
.tx
.timeout
.pm_frame_timeout
= cpu_to_le16(3);
2629 cmd
->cmd
.tx
.timeout
.pm_frame_timeout
= cpu_to_le16(2);
2631 cmd
->cmd
.tx
.timeout
.pm_frame_timeout
= 0;
2633 cmd
->cmd
.tx
.driver_txop
= 0;
2634 cmd
->cmd
.tx
.tx_flags
= tx_flags
;
2635 cmd
->cmd
.tx
.next_frame_len
= 0;
2639 * iwl4965_get_sta_id - Find station's index within station table
2641 * If new IBSS station, create new entry in station table
2643 static int iwl4965_get_sta_id(struct iwl4965_priv
*priv
,
2644 struct ieee80211_hdr
*hdr
)
2647 u16 fc
= le16_to_cpu(hdr
->frame_control
);
2648 DECLARE_MAC_BUF(mac
);
2650 /* If this frame is broadcast or management, use broadcast station id */
2651 if (((fc
& IEEE80211_FCTL_FTYPE
) != IEEE80211_FTYPE_DATA
) ||
2652 is_multicast_ether_addr(hdr
->addr1
))
2653 return priv
->hw_setting
.bcast_sta_id
;
2655 switch (priv
->iw_mode
) {
2657 /* If we are a client station in a BSS network, use the special
2658 * AP station entry (that's the only station we communicate with) */
2659 case IEEE80211_IF_TYPE_STA
:
2662 /* If we are an AP, then find the station, or use BCAST */
2663 case IEEE80211_IF_TYPE_AP
:
2664 sta_id
= iwl4965_hw_find_station(priv
, hdr
->addr1
);
2665 if (sta_id
!= IWL_INVALID_STATION
)
2667 return priv
->hw_setting
.bcast_sta_id
;
2669 /* If this frame is going out to an IBSS network, find the station,
2670 * or create a new station table entry */
2671 case IEEE80211_IF_TYPE_IBSS
:
2672 sta_id
= iwl4965_hw_find_station(priv
, hdr
->addr1
);
2673 if (sta_id
!= IWL_INVALID_STATION
)
2676 /* Create new station table entry */
2677 sta_id
= iwl4965_add_station_flags(priv
, hdr
->addr1
,
2678 0, CMD_ASYNC
, NULL
);
2680 if (sta_id
!= IWL_INVALID_STATION
)
2683 IWL_DEBUG_DROP("Station %s not in station map. "
2684 "Defaulting to broadcast...\n",
2685 print_mac(mac
, hdr
->addr1
));
2686 iwl4965_print_hex_dump(IWL_DL_DROP
, (u8
*) hdr
, sizeof(*hdr
));
2687 return priv
->hw_setting
.bcast_sta_id
;
2690 IWL_WARNING("Unknown mode of operation: %d", priv
->iw_mode
);
2691 return priv
->hw_setting
.bcast_sta_id
;
2696 * start REPLY_TX command process
2698 static int iwl4965_tx_skb(struct iwl4965_priv
*priv
,
2699 struct sk_buff
*skb
, struct ieee80211_tx_control
*ctl
)
2701 struct ieee80211_hdr
*hdr
= (struct ieee80211_hdr
*)skb
->data
;
2702 struct iwl4965_tfd_frame
*tfd
;
2704 int txq_id
= ctl
->queue
;
2705 struct iwl4965_tx_queue
*txq
= NULL
;
2706 struct iwl4965_queue
*q
= NULL
;
2707 dma_addr_t phys_addr
;
2708 dma_addr_t txcmd_phys
;
2709 dma_addr_t scratch_phys
;
2710 struct iwl4965_cmd
*out_cmd
= NULL
;
2711 u16 len
, idx
, len_org
;
2712 u8 id
, hdr_len
, unicast
;
2717 u8 wait_write_ptr
= 0;
2718 unsigned long flags
;
2721 spin_lock_irqsave(&priv
->lock
, flags
);
2722 if (iwl4965_is_rfkill(priv
)) {
2723 IWL_DEBUG_DROP("Dropping - RF KILL\n");
2728 IWL_DEBUG_DROP("Dropping - !priv->vif\n");
2732 if ((ctl
->tx_rate
->hw_value
& 0xFF) == IWL_INVALID_RATE
) {
2733 IWL_ERROR("ERROR: No TX rate available.\n");
2737 unicast
= !is_multicast_ether_addr(hdr
->addr1
);
2740 fc
= le16_to_cpu(hdr
->frame_control
);
2742 #ifdef CONFIG_IWL4965_DEBUG
2743 if (ieee80211_is_auth(fc
))
2744 IWL_DEBUG_TX("Sending AUTH frame\n");
2745 else if (ieee80211_is_assoc_request(fc
))
2746 IWL_DEBUG_TX("Sending ASSOC frame\n");
2747 else if (ieee80211_is_reassoc_request(fc
))
2748 IWL_DEBUG_TX("Sending REASSOC frame\n");
2751 /* drop all data frame if we are not associated */
2752 if (((fc
& IEEE80211_FCTL_FTYPE
) == IEEE80211_FTYPE_DATA
) &&
2753 (!iwl4965_is_associated(priv
) ||
2754 ((priv
->iw_mode
== IEEE80211_IF_TYPE_STA
) && !priv
->assoc_id
) ||
2755 !priv
->assoc_station_added
)) {
2756 IWL_DEBUG_DROP("Dropping - !iwl4965_is_associated\n");
2760 spin_unlock_irqrestore(&priv
->lock
, flags
);
2762 hdr_len
= ieee80211_get_hdrlen(fc
);
2764 /* Find (or create) index into station table for destination station */
2765 sta_id
= iwl4965_get_sta_id(priv
, hdr
);
2766 if (sta_id
== IWL_INVALID_STATION
) {
2767 DECLARE_MAC_BUF(mac
);
2769 IWL_DEBUG_DROP("Dropping - INVALID STATION: %s\n",
2770 print_mac(mac
, hdr
->addr1
));
2774 IWL_DEBUG_RATE("station Id %d\n", sta_id
);
2776 qc
= ieee80211_get_qos_ctrl(hdr
);
2778 u8 tid
= (u8
)(le16_to_cpu(*qc
) & 0xf);
2779 seq_number
= priv
->stations
[sta_id
].tid
[tid
].seq_number
&
2781 hdr
->seq_ctrl
= cpu_to_le16(seq_number
) |
2783 __constant_cpu_to_le16(IEEE80211_SCTL_FRAG
));
2785 #ifdef CONFIG_IWL4965_HT
2786 /* aggregation is on for this <sta,tid> */
2787 if (ctl
->flags
& IEEE80211_TXCTL_AMPDU
)
2788 txq_id
= priv
->stations
[sta_id
].tid
[tid
].agg
.txq_id
;
2789 priv
->stations
[sta_id
].tid
[tid
].tfds_in_queue
++;
2790 #endif /* CONFIG_IWL4965_HT */
2793 /* Descriptor for chosen Tx queue */
2794 txq
= &priv
->txq
[txq_id
];
2797 spin_lock_irqsave(&priv
->lock
, flags
);
2799 /* Set up first empty TFD within this queue's circular TFD buffer */
2800 tfd
= &txq
->bd
[q
->write_ptr
];
2801 memset(tfd
, 0, sizeof(*tfd
));
2802 control_flags
= (u32
*) tfd
;
2803 idx
= get_cmd_index(q
, q
->write_ptr
, 0);
2805 /* Set up driver data for this TFD */
2806 memset(&(txq
->txb
[q
->write_ptr
]), 0, sizeof(struct iwl4965_tx_info
));
2807 txq
->txb
[q
->write_ptr
].skb
[0] = skb
;
2808 memcpy(&(txq
->txb
[q
->write_ptr
].status
.control
),
2809 ctl
, sizeof(struct ieee80211_tx_control
));
2811 /* Set up first empty entry in queue's array of Tx/cmd buffers */
2812 out_cmd
= &txq
->cmd
[idx
];
2813 memset(&out_cmd
->hdr
, 0, sizeof(out_cmd
->hdr
));
2814 memset(&out_cmd
->cmd
.tx
, 0, sizeof(out_cmd
->cmd
.tx
));
2817 * Set up the Tx-command (not MAC!) header.
2818 * Store the chosen Tx queue and TFD index within the sequence field;
2819 * after Tx, uCode's Tx response will return this value so driver can
2820 * locate the frame within the tx queue and do post-tx processing.
2822 out_cmd
->hdr
.cmd
= REPLY_TX
;
2823 out_cmd
->hdr
.sequence
= cpu_to_le16((u16
)(QUEUE_TO_SEQ(txq_id
) |
2824 INDEX_TO_SEQ(q
->write_ptr
)));
2826 /* Copy MAC header from skb into command buffer */
2827 memcpy(out_cmd
->cmd
.tx
.hdr
, hdr
, hdr_len
);
2830 * Use the first empty entry in this queue's command buffer array
2831 * to contain the Tx command and MAC header concatenated together
2832 * (payload data will be in another buffer).
2833 * Size of this varies, due to varying MAC header length.
2834 * If end is not dword aligned, we'll have 2 extra bytes at the end
2835 * of the MAC header (device reads on dword boundaries).
2836 * We'll tell device about this padding later.
2838 len
= priv
->hw_setting
.tx_cmd_len
+
2839 sizeof(struct iwl4965_cmd_header
) + hdr_len
;
2842 len
= (len
+ 3) & ~3;
2849 /* Physical address of this Tx command's header (not MAC header!),
2850 * within command buffer array. */
2851 txcmd_phys
= txq
->dma_addr_cmd
+ sizeof(struct iwl4965_cmd
) * idx
+
2852 offsetof(struct iwl4965_cmd
, hdr
);
2854 /* Add buffer containing Tx command and MAC(!) header to TFD's
2856 iwl4965_hw_txq_attach_buf_to_tfd(priv
, tfd
, txcmd_phys
, len
);
2858 if (!(ctl
->flags
& IEEE80211_TXCTL_DO_NOT_ENCRYPT
))
2859 iwl4965_build_tx_cmd_hwcrypto(priv
, ctl
, out_cmd
, skb
, 0);
2861 /* Set up TFD's 2nd entry to point directly to remainder of skb,
2862 * if any (802.11 null frames have no payload). */
2863 len
= skb
->len
- hdr_len
;
2865 phys_addr
= pci_map_single(priv
->pci_dev
, skb
->data
+ hdr_len
,
2866 len
, PCI_DMA_TODEVICE
);
2867 iwl4965_hw_txq_attach_buf_to_tfd(priv
, tfd
, phys_addr
, len
);
2870 /* Tell 4965 about any 2-byte padding after MAC header */
2872 out_cmd
->cmd
.tx
.tx_flags
|= TX_CMD_FLG_MH_PAD_MSK
;
2874 /* Total # bytes to be transmitted */
2875 len
= (u16
)skb
->len
;
2876 out_cmd
->cmd
.tx
.len
= cpu_to_le16(len
);
2878 /* TODO need this for burst mode later on */
2879 iwl4965_build_tx_cmd_basic(priv
, out_cmd
, ctl
, hdr
, unicast
, sta_id
);
2881 /* set is_hcca to 0; it probably will never be implemented */
2882 iwl4965_hw_build_tx_cmd_rate(priv
, out_cmd
, ctl
, hdr
, sta_id
, 0);
2884 scratch_phys
= txcmd_phys
+ sizeof(struct iwl4965_cmd_header
) +
2885 offsetof(struct iwl4965_tx_cmd
, scratch
);
2886 out_cmd
->cmd
.tx
.dram_lsb_ptr
= cpu_to_le32(scratch_phys
);
2887 out_cmd
->cmd
.tx
.dram_msb_ptr
= iwl_get_dma_hi_address(scratch_phys
);
2889 if (!ieee80211_get_morefrag(hdr
)) {
2890 txq
->need_update
= 1;
2892 u8 tid
= (u8
)(le16_to_cpu(*qc
) & 0xf);
2893 priv
->stations
[sta_id
].tid
[tid
].seq_number
= seq_number
;
2897 txq
->need_update
= 0;
2900 iwl4965_print_hex_dump(IWL_DL_TX
, out_cmd
->cmd
.payload
,
2901 sizeof(out_cmd
->cmd
.tx
));
2903 iwl4965_print_hex_dump(IWL_DL_TX
, (u8
*)out_cmd
->cmd
.tx
.hdr
,
2904 ieee80211_get_hdrlen(fc
));
2906 /* Set up entry for this TFD in Tx byte-count array */
2907 iwl4965_tx_queue_update_wr_ptr(priv
, txq
, len
);
2909 /* Tell device the write index *just past* this latest filled TFD */
2910 q
->write_ptr
= iwl4965_queue_inc_wrap(q
->write_ptr
, q
->n_bd
);
2911 rc
= iwl4965_tx_queue_update_write_ptr(priv
, txq
);
2912 spin_unlock_irqrestore(&priv
->lock
, flags
);
2917 if ((iwl4965_queue_space(q
) < q
->high_mark
)
2918 && priv
->mac80211_registered
) {
2919 if (wait_write_ptr
) {
2920 spin_lock_irqsave(&priv
->lock
, flags
);
2921 txq
->need_update
= 1;
2922 iwl4965_tx_queue_update_write_ptr(priv
, txq
);
2923 spin_unlock_irqrestore(&priv
->lock
, flags
);
2926 ieee80211_stop_queue(priv
->hw
, ctl
->queue
);
2932 spin_unlock_irqrestore(&priv
->lock
, flags
);
2937 static void iwl4965_set_rate(struct iwl4965_priv
*priv
)
2939 const struct ieee80211_supported_band
*hw
= NULL
;
2940 struct ieee80211_rate
*rate
;
2943 hw
= iwl4965_get_hw_mode(priv
, priv
->band
);
2945 IWL_ERROR("Failed to set rate: unable to get hw mode\n");
2949 priv
->active_rate
= 0;
2950 priv
->active_rate_basic
= 0;
2952 for (i
= 0; i
< hw
->n_bitrates
; i
++) {
2953 rate
= &(hw
->bitrates
[i
]);
2954 if (rate
->hw_value
< IWL_RATE_COUNT
)
2955 priv
->active_rate
|= (1 << rate
->hw_value
);
2958 IWL_DEBUG_RATE("Set active_rate = %0x, active_rate_basic = %0x\n",
2959 priv
->active_rate
, priv
->active_rate_basic
);
2962 * If a basic rate is configured, then use it (adding IWL_RATE_1M_MASK)
2963 * otherwise set it to the default of all CCK rates and 6, 12, 24 for
2966 if (priv
->active_rate_basic
& IWL_CCK_BASIC_RATES_MASK
)
2967 priv
->staging_rxon
.cck_basic_rates
=
2968 ((priv
->active_rate_basic
&
2969 IWL_CCK_RATES_MASK
) >> IWL_FIRST_CCK_RATE
) & 0xF;
2971 priv
->staging_rxon
.cck_basic_rates
=
2972 (IWL_CCK_BASIC_RATES_MASK
>> IWL_FIRST_CCK_RATE
) & 0xF;
2974 if (priv
->active_rate_basic
& IWL_OFDM_BASIC_RATES_MASK
)
2975 priv
->staging_rxon
.ofdm_basic_rates
=
2976 ((priv
->active_rate_basic
&
2977 (IWL_OFDM_BASIC_RATES_MASK
| IWL_RATE_6M_MASK
)) >>
2978 IWL_FIRST_OFDM_RATE
) & 0xFF;
2980 priv
->staging_rxon
.ofdm_basic_rates
=
2981 (IWL_OFDM_BASIC_RATES_MASK
>> IWL_FIRST_OFDM_RATE
) & 0xFF;
2984 static void iwl4965_radio_kill_sw(struct iwl4965_priv
*priv
, int disable_radio
)
2986 unsigned long flags
;
2988 if (!!disable_radio
== test_bit(STATUS_RF_KILL_SW
, &priv
->status
))
2991 IWL_DEBUG_RF_KILL("Manual SW RF KILL set to: RADIO %s\n",
2992 disable_radio
? "OFF" : "ON");
2994 if (disable_radio
) {
2995 iwl4965_scan_cancel(priv
);
2996 /* FIXME: This is a workaround for AP */
2997 if (priv
->iw_mode
!= IEEE80211_IF_TYPE_AP
) {
2998 spin_lock_irqsave(&priv
->lock
, flags
);
2999 iwl4965_write32(priv
, CSR_UCODE_DRV_GP1_SET
,
3000 CSR_UCODE_SW_BIT_RFKILL
);
3001 spin_unlock_irqrestore(&priv
->lock
, flags
);
3002 iwl4965_send_card_state(priv
, CARD_STATE_CMD_DISABLE
, 0);
3003 set_bit(STATUS_RF_KILL_SW
, &priv
->status
);
3008 spin_lock_irqsave(&priv
->lock
, flags
);
3009 iwl4965_write32(priv
, CSR_UCODE_DRV_GP1_CLR
, CSR_UCODE_SW_BIT_RFKILL
);
3011 clear_bit(STATUS_RF_KILL_SW
, &priv
->status
);
3012 spin_unlock_irqrestore(&priv
->lock
, flags
);
3017 spin_lock_irqsave(&priv
->lock
, flags
);
3018 iwl4965_read32(priv
, CSR_UCODE_DRV_GP1
);
3019 if (!iwl4965_grab_nic_access(priv
))
3020 iwl4965_release_nic_access(priv
);
3021 spin_unlock_irqrestore(&priv
->lock
, flags
);
3023 if (test_bit(STATUS_RF_KILL_HW
, &priv
->status
)) {
3024 IWL_DEBUG_RF_KILL("Can not turn radio back on - "
3025 "disabled by HW switch\n");
3029 queue_work(priv
->workqueue
, &priv
->restart
);
3033 void iwl4965_set_decrypted_flag(struct iwl4965_priv
*priv
, struct sk_buff
*skb
,
3034 u32 decrypt_res
, struct ieee80211_rx_status
*stats
)
3037 le16_to_cpu(((struct ieee80211_hdr
*)skb
->data
)->frame_control
);
3039 if (priv
->active_rxon
.filter_flags
& RXON_FILTER_DIS_DECRYPT_MSK
)
3042 if (!(fc
& IEEE80211_FCTL_PROTECTED
))
3045 IWL_DEBUG_RX("decrypt_res:0x%x\n", decrypt_res
);
3046 switch (decrypt_res
& RX_RES_STATUS_SEC_TYPE_MSK
) {
3047 case RX_RES_STATUS_SEC_TYPE_TKIP
:
3048 if ((decrypt_res
& RX_RES_STATUS_DECRYPT_TYPE_MSK
) ==
3049 RX_RES_STATUS_BAD_ICV_MIC
)
3050 stats
->flag
|= RX_FLAG_MMIC_ERROR
;
3051 case RX_RES_STATUS_SEC_TYPE_WEP
:
3052 case RX_RES_STATUS_SEC_TYPE_CCMP
:
3053 if ((decrypt_res
& RX_RES_STATUS_DECRYPT_TYPE_MSK
) ==
3054 RX_RES_STATUS_DECRYPT_OK
) {
3055 IWL_DEBUG_RX("hw decrypt successfully!!!\n");
3056 stats
->flag
|= RX_FLAG_DECRYPTED
;
3066 #define IWL_PACKET_RETRY_TIME HZ
3068 int iwl4965_is_duplicate_packet(struct iwl4965_priv
*priv
, struct ieee80211_hdr
*header
)
3070 u16 sc
= le16_to_cpu(header
->seq_ctrl
);
3071 u16 seq
= (sc
& IEEE80211_SCTL_SEQ
) >> 4;
3072 u16 frag
= sc
& IEEE80211_SCTL_FRAG
;
3073 u16
*last_seq
, *last_frag
;
3074 unsigned long *last_time
;
3076 switch (priv
->iw_mode
) {
3077 case IEEE80211_IF_TYPE_IBSS
:{
3078 struct list_head
*p
;
3079 struct iwl4965_ibss_seq
*entry
= NULL
;
3080 u8
*mac
= header
->addr2
;
3081 int index
= mac
[5] & (IWL_IBSS_MAC_HASH_SIZE
- 1);
3083 __list_for_each(p
, &priv
->ibss_mac_hash
[index
]) {
3084 entry
= list_entry(p
, struct iwl4965_ibss_seq
, list
);
3085 if (!compare_ether_addr(entry
->mac
, mac
))
3088 if (p
== &priv
->ibss_mac_hash
[index
]) {
3089 entry
= kzalloc(sizeof(*entry
), GFP_ATOMIC
);
3091 IWL_ERROR("Cannot malloc new mac entry\n");
3094 memcpy(entry
->mac
, mac
, ETH_ALEN
);
3095 entry
->seq_num
= seq
;
3096 entry
->frag_num
= frag
;
3097 entry
->packet_time
= jiffies
;
3098 list_add(&entry
->list
, &priv
->ibss_mac_hash
[index
]);
3101 last_seq
= &entry
->seq_num
;
3102 last_frag
= &entry
->frag_num
;
3103 last_time
= &entry
->packet_time
;
3106 case IEEE80211_IF_TYPE_STA
:
3107 last_seq
= &priv
->last_seq_num
;
3108 last_frag
= &priv
->last_frag_num
;
3109 last_time
= &priv
->last_packet_time
;
3114 if ((*last_seq
== seq
) &&
3115 time_after(*last_time
+ IWL_PACKET_RETRY_TIME
, jiffies
)) {
3116 if (*last_frag
== frag
)
3118 if (*last_frag
+ 1 != frag
)
3119 /* out-of-order fragment */
3125 *last_time
= jiffies
;
3132 #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
3134 #include "iwl-spectrum.h"
3136 #define BEACON_TIME_MASK_LOW 0x00FFFFFF
3137 #define BEACON_TIME_MASK_HIGH 0xFF000000
3138 #define TIME_UNIT 1024
3141 * extended beacon time format
3142 * time in usec will be changed into a 32-bit value in 8:24 format
3143 * the high 1 byte is the beacon counts
3144 * the lower 3 bytes is the time in usec within one beacon interval
3147 static u32
iwl4965_usecs_to_beacons(u32 usec
, u32 beacon_interval
)
3151 u32 interval
= beacon_interval
* 1024;
3153 if (!interval
|| !usec
)
3156 quot
= (usec
/ interval
) & (BEACON_TIME_MASK_HIGH
>> 24);
3157 rem
= (usec
% interval
) & BEACON_TIME_MASK_LOW
;
3159 return (quot
<< 24) + rem
;
3162 /* base is usually what we get from ucode with each received frame,
3163 * the same as HW timer counter counting down
3166 static __le32
iwl4965_add_beacon_time(u32 base
, u32 addon
, u32 beacon_interval
)
3168 u32 base_low
= base
& BEACON_TIME_MASK_LOW
;
3169 u32 addon_low
= addon
& BEACON_TIME_MASK_LOW
;
3170 u32 interval
= beacon_interval
* TIME_UNIT
;
3171 u32 res
= (base
& BEACON_TIME_MASK_HIGH
) +
3172 (addon
& BEACON_TIME_MASK_HIGH
);
3174 if (base_low
> addon_low
)
3175 res
+= base_low
- addon_low
;
3176 else if (base_low
< addon_low
) {
3177 res
+= interval
+ base_low
- addon_low
;
3182 return cpu_to_le32(res
);
3185 static int iwl4965_get_measurement(struct iwl4965_priv
*priv
,
3186 struct ieee80211_measurement_params
*params
,
3189 struct iwl4965_spectrum_cmd spectrum
;
3190 struct iwl4965_rx_packet
*res
;
3191 struct iwl4965_host_cmd cmd
= {
3192 .id
= REPLY_SPECTRUM_MEASUREMENT_CMD
,
3193 .data
= (void *)&spectrum
,
3194 .meta
.flags
= CMD_WANT_SKB
,
3196 u32 add_time
= le64_to_cpu(params
->start_time
);
3198 int spectrum_resp_status
;
3199 int duration
= le16_to_cpu(params
->duration
);
3201 if (iwl4965_is_associated(priv
))
3203 iwl4965_usecs_to_beacons(
3204 le64_to_cpu(params
->start_time
) - priv
->last_tsf
,
3205 le16_to_cpu(priv
->rxon_timing
.beacon_interval
));
3207 memset(&spectrum
, 0, sizeof(spectrum
));
3209 spectrum
.channel_count
= cpu_to_le16(1);
3211 RXON_FLG_TSF2HOST_MSK
| RXON_FLG_ANT_A_MSK
| RXON_FLG_DIS_DIV_MSK
;
3212 spectrum
.filter_flags
= MEASUREMENT_FILTER_FLAG
;
3213 cmd
.len
= sizeof(spectrum
);
3214 spectrum
.len
= cpu_to_le16(cmd
.len
- sizeof(spectrum
.len
));
3216 if (iwl4965_is_associated(priv
))
3217 spectrum
.start_time
=
3218 iwl4965_add_beacon_time(priv
->last_beacon_time
,
3220 le16_to_cpu(priv
->rxon_timing
.beacon_interval
));
3222 spectrum
.start_time
= 0;
3224 spectrum
.channels
[0].duration
= cpu_to_le32(duration
* TIME_UNIT
);
3225 spectrum
.channels
[0].channel
= params
->channel
;
3226 spectrum
.channels
[0].type
= type
;
3227 if (priv
->active_rxon
.flags
& RXON_FLG_BAND_24G_MSK
)
3228 spectrum
.flags
|= RXON_FLG_BAND_24G_MSK
|
3229 RXON_FLG_AUTO_DETECT_MSK
| RXON_FLG_TGG_PROTECT_MSK
;
3231 rc
= iwl4965_send_cmd_sync(priv
, &cmd
);
3235 res
= (struct iwl4965_rx_packet
*)cmd
.meta
.u
.skb
->data
;
3236 if (res
->hdr
.flags
& IWL_CMD_FAILED_MSK
) {
3237 IWL_ERROR("Bad return from REPLY_RX_ON_ASSOC command\n");
3241 spectrum_resp_status
= le16_to_cpu(res
->u
.spectrum
.status
);
3242 switch (spectrum_resp_status
) {
3243 case 0: /* Command will be handled */
3244 if (res
->u
.spectrum
.id
!= 0xff) {
3246 ("Replaced existing measurement: %d\n",
3247 res
->u
.spectrum
.id
);
3248 priv
->measurement_status
&= ~MEASUREMENT_READY
;
3250 priv
->measurement_status
|= MEASUREMENT_ACTIVE
;
3254 case 1: /* Command will not be handled */
3259 dev_kfree_skb_any(cmd
.meta
.u
.skb
);
3265 static void iwl4965_txstatus_to_ieee(struct iwl4965_priv
*priv
,
3266 struct iwl4965_tx_info
*tx_sta
)
3269 tx_sta
->status
.ack_signal
= 0;
3270 tx_sta
->status
.excessive_retries
= 0;
3271 tx_sta
->status
.queue_length
= 0;
3272 tx_sta
->status
.queue_number
= 0;
3275 ieee80211_tx_status_irqsafe(priv
->hw
,
3276 tx_sta
->skb
[0], &(tx_sta
->status
));
3278 ieee80211_tx_status(priv
->hw
,
3279 tx_sta
->skb
[0], &(tx_sta
->status
));
3281 tx_sta
->skb
[0] = NULL
;
3285 * iwl4965_tx_queue_reclaim - Reclaim Tx queue entries already Tx'd
3287 * When FW advances 'R' index, all entries between old and new 'R' index
3288 * need to be reclaimed. As result, some free space forms. If there is
3289 * enough free space (> low mark), wake the stack that feeds us.
3291 int iwl4965_tx_queue_reclaim(struct iwl4965_priv
*priv
, int txq_id
, int index
)
3293 struct iwl4965_tx_queue
*txq
= &priv
->txq
[txq_id
];
3294 struct iwl4965_queue
*q
= &txq
->q
;
3297 if ((index
>= q
->n_bd
) || (x2_queue_used(q
, index
) == 0)) {
3298 IWL_ERROR("Read index for DMA queue txq id (%d), index %d, "
3299 "is out of range [0-%d] %d %d.\n", txq_id
,
3300 index
, q
->n_bd
, q
->write_ptr
, q
->read_ptr
);
3304 for (index
= iwl4965_queue_inc_wrap(index
, q
->n_bd
);
3305 q
->read_ptr
!= index
;
3306 q
->read_ptr
= iwl4965_queue_inc_wrap(q
->read_ptr
, q
->n_bd
)) {
3307 if (txq_id
!= IWL_CMD_QUEUE_NUM
) {
3308 iwl4965_txstatus_to_ieee(priv
,
3309 &(txq
->txb
[txq
->q
.read_ptr
]));
3310 iwl4965_hw_txq_free_tfd(priv
, txq
);
3311 } else if (nfreed
> 1) {
3312 IWL_ERROR("HCMD skipped: index (%d) %d %d\n", index
,
3313 q
->write_ptr
, q
->read_ptr
);
3314 queue_work(priv
->workqueue
, &priv
->restart
);
3319 /* if (iwl4965_queue_space(q) > q->low_mark && (txq_id >= 0) &&
3320 (txq_id != IWL_CMD_QUEUE_NUM) &&
3321 priv->mac80211_registered)
3322 ieee80211_wake_queue(priv->hw, txq_id); */
3328 static int iwl4965_is_tx_success(u32 status
)
3330 status
&= TX_STATUS_MSK
;
3331 return (status
== TX_STATUS_SUCCESS
)
3332 || (status
== TX_STATUS_DIRECT_DONE
);
3335 /******************************************************************************
3337 * Generic RX handler implementations
3339 ******************************************************************************/
3340 #ifdef CONFIG_IWL4965_HT
3342 static inline int iwl4965_get_ra_sta_id(struct iwl4965_priv
*priv
,
3343 struct ieee80211_hdr
*hdr
)
3345 if (priv
->iw_mode
== IEEE80211_IF_TYPE_STA
)
3348 u8
*da
= ieee80211_get_DA(hdr
);
3349 return iwl4965_hw_find_station(priv
, da
);
3353 static struct ieee80211_hdr
*iwl4965_tx_queue_get_hdr(
3354 struct iwl4965_priv
*priv
, int txq_id
, int idx
)
3356 if (priv
->txq
[txq_id
].txb
[idx
].skb
[0])
3357 return (struct ieee80211_hdr
*)priv
->txq
[txq_id
].
3358 txb
[idx
].skb
[0]->data
;
3362 static inline u32
iwl4965_get_scd_ssn(struct iwl4965_tx_resp
*tx_resp
)
3364 __le32
*scd_ssn
= (__le32
*)((u32
*)&tx_resp
->status
+
3365 tx_resp
->frame_count
);
3366 return le32_to_cpu(*scd_ssn
) & MAX_SN
;
3371 * iwl4965_tx_status_reply_tx - Handle Tx rspnse for frames in aggregation queue
3373 static int iwl4965_tx_status_reply_tx(struct iwl4965_priv
*priv
,
3374 struct iwl4965_ht_agg
*agg
,
3375 struct iwl4965_tx_resp_agg
*tx_resp
,
3379 struct agg_tx_status
*frame_status
= &tx_resp
->status
;
3380 struct ieee80211_tx_status
*tx_status
= NULL
;
3381 struct ieee80211_hdr
*hdr
= NULL
;
3386 if (agg
->wait_for_ba
)
3387 IWL_DEBUG_TX_REPLY("got tx response w/o block-ack\n");
3389 agg
->frame_count
= tx_resp
->frame_count
;
3390 agg
->start_idx
= start_idx
;
3391 agg
->rate_n_flags
= le32_to_cpu(tx_resp
->rate_n_flags
);
3394 /* # frames attempted by Tx command */
3395 if (agg
->frame_count
== 1) {
3396 /* Only one frame was attempted; no block-ack will arrive */
3397 status
= le16_to_cpu(frame_status
[0].status
);
3398 seq
= le16_to_cpu(frame_status
[0].sequence
);
3399 idx
= SEQ_TO_INDEX(seq
);
3400 txq_id
= SEQ_TO_QUEUE(seq
);
3402 /* FIXME: code repetition */
3403 IWL_DEBUG_TX_REPLY("FrameCnt = %d, StartIdx=%d idx=%d\n",
3404 agg
->frame_count
, agg
->start_idx
, idx
);
3406 tx_status
= &(priv
->txq
[txq_id
].txb
[idx
].status
);
3407 tx_status
->retry_count
= tx_resp
->failure_frame
;
3408 tx_status
->queue_number
= status
& 0xff;
3409 tx_status
->queue_length
= tx_resp
->failure_rts
;
3410 tx_status
->control
.flags
&= ~IEEE80211_TXCTL_AMPDU
;
3411 tx_status
->flags
= iwl4965_is_tx_success(status
)?
3412 IEEE80211_TX_STATUS_ACK
: 0;
3414 tx_status->control.tx_rate =
3415 iwl4965_hw_get_rate_n_flags(tx_resp->rate_n_flags); */
3416 /* FIXME: code repetition end */
3418 IWL_DEBUG_TX_REPLY("1 Frame 0x%x failure :%d\n",
3419 status
& 0xff, tx_resp
->failure_frame
);
3420 IWL_DEBUG_TX_REPLY("Rate Info rate_n_flags=%x\n",
3421 iwl4965_hw_get_rate_n_flags(tx_resp
->rate_n_flags
));
3423 agg
->wait_for_ba
= 0;
3425 /* Two or more frames were attempted; expect block-ack */
3427 int start
= agg
->start_idx
;
3429 /* Construct bit-map of pending frames within Tx window */
3430 for (i
= 0; i
< agg
->frame_count
; i
++) {
3432 status
= le16_to_cpu(frame_status
[i
].status
);
3433 seq
= le16_to_cpu(frame_status
[i
].sequence
);
3434 idx
= SEQ_TO_INDEX(seq
);
3435 txq_id
= SEQ_TO_QUEUE(seq
);
3437 if (status
& (AGG_TX_STATE_FEW_BYTES_MSK
|
3438 AGG_TX_STATE_ABORT_MSK
))
3441 IWL_DEBUG_TX_REPLY("FrameCnt = %d, txq_id=%d idx=%d\n",
3442 agg
->frame_count
, txq_id
, idx
);
3444 hdr
= iwl4965_tx_queue_get_hdr(priv
, txq_id
, idx
);
3446 sc
= le16_to_cpu(hdr
->seq_ctrl
);
3447 if (idx
!= (SEQ_TO_SN(sc
) & 0xff)) {
3448 IWL_ERROR("BUG_ON idx doesn't match seq control"
3449 " idx=%d, seq_idx=%d, seq=%d\n",
3455 IWL_DEBUG_TX_REPLY("AGG Frame i=%d idx %d seq=%d\n",
3456 i
, idx
, SEQ_TO_SN(sc
));
3460 sh
= (start
- idx
) + 0xff;
3461 bitmap
= bitmap
<< sh
;
3464 } else if (sh
< -64)
3465 sh
= 0xff - (start
- idx
);
3469 bitmap
= bitmap
<< sh
;
3472 bitmap
|= (1 << sh
);
3473 IWL_DEBUG_TX_REPLY("start=%d bitmap=0x%x\n",
3474 start
, (u32
)(bitmap
& 0xFFFFFFFF));
3477 agg
->bitmap
= bitmap
;
3478 agg
->start_idx
= start
;
3479 agg
->rate_n_flags
= le32_to_cpu(tx_resp
->rate_n_flags
);
3480 IWL_DEBUG_TX_REPLY("Frames %d start_idx=%d bitmap=0x%llx\n",
3481 agg
->frame_count
, agg
->start_idx
,
3485 agg
->wait_for_ba
= 1;
3492 * iwl4965_rx_reply_tx - Handle standard (non-aggregation) Tx response
3494 static void iwl4965_rx_reply_tx(struct iwl4965_priv
*priv
,
3495 struct iwl4965_rx_mem_buffer
*rxb
)
3497 struct iwl4965_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3498 u16 sequence
= le16_to_cpu(pkt
->hdr
.sequence
);
3499 int txq_id
= SEQ_TO_QUEUE(sequence
);
3500 int index
= SEQ_TO_INDEX(sequence
);
3501 struct iwl4965_tx_queue
*txq
= &priv
->txq
[txq_id
];
3502 struct ieee80211_tx_status
*tx_status
;
3503 struct iwl4965_tx_resp
*tx_resp
= (void *)&pkt
->u
.raw
[0];
3504 u32 status
= le32_to_cpu(tx_resp
->status
);
3505 #ifdef CONFIG_IWL4965_HT
3506 int tid
= MAX_TID_COUNT
, sta_id
= IWL_INVALID_STATION
;
3507 struct ieee80211_hdr
*hdr
;
3511 if ((index
>= txq
->q
.n_bd
) || (x2_queue_used(&txq
->q
, index
) == 0)) {
3512 IWL_ERROR("Read index for DMA queue txq_id (%d) index %d "
3513 "is out of range [0-%d] %d %d\n", txq_id
,
3514 index
, txq
->q
.n_bd
, txq
->q
.write_ptr
,
3519 #ifdef CONFIG_IWL4965_HT
3520 hdr
= iwl4965_tx_queue_get_hdr(priv
, txq_id
, index
);
3521 qc
= ieee80211_get_qos_ctrl(hdr
);
3524 tid
= le16_to_cpu(*qc
) & 0xf;
3526 sta_id
= iwl4965_get_ra_sta_id(priv
, hdr
);
3527 if (txq
->sched_retry
&& unlikely(sta_id
== IWL_INVALID_STATION
)) {
3528 IWL_ERROR("Station not known\n");
3532 if (txq
->sched_retry
) {
3533 const u32 scd_ssn
= iwl4965_get_scd_ssn(tx_resp
);
3534 struct iwl4965_ht_agg
*agg
= NULL
;
3539 agg
= &priv
->stations
[sta_id
].tid
[tid
].agg
;
3541 iwl4965_tx_status_reply_tx(priv
, agg
,
3542 (struct iwl4965_tx_resp_agg
*)tx_resp
, index
);
3544 if ((tx_resp
->frame_count
== 1) &&
3545 !iwl4965_is_tx_success(status
)) {
3546 /* TODO: send BAR */
3549 if (txq
->q
.read_ptr
!= (scd_ssn
& 0xff)) {
3551 index
= iwl4965_queue_dec_wrap(scd_ssn
& 0xff, txq
->q
.n_bd
);
3552 IWL_DEBUG_TX_REPLY("Retry scheduler reclaim scd_ssn "
3553 "%d index %d\n", scd_ssn
, index
);
3554 freed
= iwl4965_tx_queue_reclaim(priv
, txq_id
, index
);
3555 priv
->stations
[sta_id
].tid
[tid
].tfds_in_queue
-= freed
;
3557 if (iwl4965_queue_space(&txq
->q
) > txq
->q
.low_mark
&&
3558 txq_id
>= 0 && priv
->mac80211_registered
&&
3559 agg
->state
!= IWL_EMPTYING_HW_QUEUE_DELBA
)
3560 ieee80211_wake_queue(priv
->hw
, txq_id
);
3562 iwl4965_check_empty_hw_queue(priv
, sta_id
, tid
, txq_id
);
3565 #endif /* CONFIG_IWL4965_HT */
3566 tx_status
= &(txq
->txb
[txq
->q
.read_ptr
].status
);
3568 tx_status
->retry_count
= tx_resp
->failure_frame
;
3569 tx_status
->queue_number
= status
;
3570 tx_status
->queue_length
= tx_resp
->bt_kill_count
;
3571 tx_status
->queue_length
|= tx_resp
->failure_rts
;
3574 iwl4965_is_tx_success(status
) ? IEEE80211_TX_STATUS_ACK
: 0;
3576 IWL_DEBUG_TX("Tx queue %d Status %s (0x%08x) rate_n_flags 0x%x "
3577 "retries %d\n", txq_id
, iwl4965_get_tx_fail_reason(status
),
3578 status
, le32_to_cpu(tx_resp
->rate_n_flags
),
3579 tx_resp
->failure_frame
);
3581 IWL_DEBUG_TX_REPLY("Tx queue reclaim %d\n", index
);
3583 int freed
= iwl4965_tx_queue_reclaim(priv
, txq_id
, index
);
3584 #ifdef CONFIG_IWL4965_HT
3585 if (tid
!= MAX_TID_COUNT
)
3586 priv
->stations
[sta_id
].tid
[tid
].tfds_in_queue
-= freed
;
3587 if (iwl4965_queue_space(&txq
->q
) > txq
->q
.low_mark
&&
3589 priv
->mac80211_registered
)
3590 ieee80211_wake_queue(priv
->hw
, txq_id
);
3591 if (tid
!= MAX_TID_COUNT
)
3592 iwl4965_check_empty_hw_queue(priv
, sta_id
, tid
, txq_id
);
3595 #ifdef CONFIG_IWL4965_HT
3597 #endif /* CONFIG_IWL4965_HT */
3599 if (iwl_check_bits(status
, TX_ABORT_REQUIRED_MSK
))
3600 IWL_ERROR("TODO: Implement Tx ABORT REQUIRED!!!\n");
3604 static void iwl4965_rx_reply_alive(struct iwl4965_priv
*priv
,
3605 struct iwl4965_rx_mem_buffer
*rxb
)
3607 struct iwl4965_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3608 struct iwl4965_alive_resp
*palive
;
3609 struct delayed_work
*pwork
;
3611 palive
= &pkt
->u
.alive_frame
;
3613 IWL_DEBUG_INFO("Alive ucode status 0x%08X revision "
3615 palive
->is_valid
, palive
->ver_type
,
3616 palive
->ver_subtype
);
3618 if (palive
->ver_subtype
== INITIALIZE_SUBTYPE
) {
3619 IWL_DEBUG_INFO("Initialization Alive received.\n");
3620 memcpy(&priv
->card_alive_init
,
3621 &pkt
->u
.alive_frame
,
3622 sizeof(struct iwl4965_init_alive_resp
));
3623 pwork
= &priv
->init_alive_start
;
3625 IWL_DEBUG_INFO("Runtime Alive received.\n");
3626 memcpy(&priv
->card_alive
, &pkt
->u
.alive_frame
,
3627 sizeof(struct iwl4965_alive_resp
));
3628 pwork
= &priv
->alive_start
;
3631 /* We delay the ALIVE response by 5ms to
3632 * give the HW RF Kill time to activate... */
3633 if (palive
->is_valid
== UCODE_VALID_OK
)
3634 queue_delayed_work(priv
->workqueue
, pwork
,
3635 msecs_to_jiffies(5));
3637 IWL_WARNING("uCode did not respond OK.\n");
3640 static void iwl4965_rx_reply_add_sta(struct iwl4965_priv
*priv
,
3641 struct iwl4965_rx_mem_buffer
*rxb
)
3643 struct iwl4965_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3645 IWL_DEBUG_RX("Received REPLY_ADD_STA: 0x%02X\n", pkt
->u
.status
);
3649 static void iwl4965_rx_reply_error(struct iwl4965_priv
*priv
,
3650 struct iwl4965_rx_mem_buffer
*rxb
)
3652 struct iwl4965_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3654 IWL_ERROR("Error Reply type 0x%08X cmd %s (0x%02X) "
3655 "seq 0x%04X ser 0x%08X\n",
3656 le32_to_cpu(pkt
->u
.err_resp
.error_type
),
3657 get_cmd_string(pkt
->u
.err_resp
.cmd_id
),
3658 pkt
->u
.err_resp
.cmd_id
,
3659 le16_to_cpu(pkt
->u
.err_resp
.bad_cmd_seq_num
),
3660 le32_to_cpu(pkt
->u
.err_resp
.error_info
));
3663 #define TX_STATUS_ENTRY(x) case TX_STATUS_FAIL_ ## x: return #x
3665 static void iwl4965_rx_csa(struct iwl4965_priv
*priv
, struct iwl4965_rx_mem_buffer
*rxb
)
3667 struct iwl4965_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3668 struct iwl4965_rxon_cmd
*rxon
= (void *)&priv
->active_rxon
;
3669 struct iwl4965_csa_notification
*csa
= &(pkt
->u
.csa_notif
);
3670 IWL_DEBUG_11H("CSA notif: channel %d, status %d\n",
3671 le16_to_cpu(csa
->channel
), le32_to_cpu(csa
->status
));
3672 rxon
->channel
= csa
->channel
;
3673 priv
->staging_rxon
.channel
= csa
->channel
;
3676 static void iwl4965_rx_spectrum_measure_notif(struct iwl4965_priv
*priv
,
3677 struct iwl4965_rx_mem_buffer
*rxb
)
3679 #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
3680 struct iwl4965_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3681 struct iwl4965_spectrum_notification
*report
= &(pkt
->u
.spectrum_notif
);
3683 if (!report
->state
) {
3684 IWL_DEBUG(IWL_DL_11H
| IWL_DL_INFO
,
3685 "Spectrum Measure Notification: Start\n");
3689 memcpy(&priv
->measure_report
, report
, sizeof(*report
));
3690 priv
->measurement_status
|= MEASUREMENT_READY
;
3694 static void iwl4965_rx_pm_sleep_notif(struct iwl4965_priv
*priv
,
3695 struct iwl4965_rx_mem_buffer
*rxb
)
3697 #ifdef CONFIG_IWL4965_DEBUG
3698 struct iwl4965_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3699 struct iwl4965_sleep_notification
*sleep
= &(pkt
->u
.sleep_notif
);
3700 IWL_DEBUG_RX("sleep mode: %d, src: %d\n",
3701 sleep
->pm_sleep_mode
, sleep
->pm_wakeup_src
);
3705 static void iwl4965_rx_pm_debug_statistics_notif(struct iwl4965_priv
*priv
,
3706 struct iwl4965_rx_mem_buffer
*rxb
)
3708 struct iwl4965_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3709 IWL_DEBUG_RADIO("Dumping %d bytes of unhandled "
3710 "notification for %s:\n",
3711 le32_to_cpu(pkt
->len
), get_cmd_string(pkt
->hdr
.cmd
));
3712 iwl4965_print_hex_dump(IWL_DL_RADIO
, pkt
->u
.raw
, le32_to_cpu(pkt
->len
));
3715 static void iwl4965_bg_beacon_update(struct work_struct
*work
)
3717 struct iwl4965_priv
*priv
=
3718 container_of(work
, struct iwl4965_priv
, beacon_update
);
3719 struct sk_buff
*beacon
;
3721 /* Pull updated AP beacon from mac80211. will fail if not in AP mode */
3722 beacon
= ieee80211_beacon_get(priv
->hw
, priv
->vif
, NULL
);
3725 IWL_ERROR("update beacon failed\n");
3729 mutex_lock(&priv
->mutex
);
3730 /* new beacon skb is allocated every time; dispose previous.*/
3731 if (priv
->ibss_beacon
)
3732 dev_kfree_skb(priv
->ibss_beacon
);
3734 priv
->ibss_beacon
= beacon
;
3735 mutex_unlock(&priv
->mutex
);
3737 iwl4965_send_beacon_cmd(priv
);
3740 static void iwl4965_rx_beacon_notif(struct iwl4965_priv
*priv
,
3741 struct iwl4965_rx_mem_buffer
*rxb
)
3743 #ifdef CONFIG_IWL4965_DEBUG
3744 struct iwl4965_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3745 struct iwl4965_beacon_notif
*beacon
= &(pkt
->u
.beacon_status
);
3746 u8 rate
= iwl4965_hw_get_rate(beacon
->beacon_notify_hdr
.rate_n_flags
);
3748 IWL_DEBUG_RX("beacon status %x retries %d iss %d "
3749 "tsf %d %d rate %d\n",
3750 le32_to_cpu(beacon
->beacon_notify_hdr
.status
) & TX_STATUS_MSK
,
3751 beacon
->beacon_notify_hdr
.failure_frame
,
3752 le32_to_cpu(beacon
->ibss_mgr_status
),
3753 le32_to_cpu(beacon
->high_tsf
),
3754 le32_to_cpu(beacon
->low_tsf
), rate
);
3757 if ((priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) &&
3758 (!test_bit(STATUS_EXIT_PENDING
, &priv
->status
)))
3759 queue_work(priv
->workqueue
, &priv
->beacon_update
);
3762 /* Service response to REPLY_SCAN_CMD (0x80) */
3763 static void iwl4965_rx_reply_scan(struct iwl4965_priv
*priv
,
3764 struct iwl4965_rx_mem_buffer
*rxb
)
3766 #ifdef CONFIG_IWL4965_DEBUG
3767 struct iwl4965_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3768 struct iwl4965_scanreq_notification
*notif
=
3769 (struct iwl4965_scanreq_notification
*)pkt
->u
.raw
;
3771 IWL_DEBUG_RX("Scan request status = 0x%x\n", notif
->status
);
3775 /* Service SCAN_START_NOTIFICATION (0x82) */
3776 static void iwl4965_rx_scan_start_notif(struct iwl4965_priv
*priv
,
3777 struct iwl4965_rx_mem_buffer
*rxb
)
3779 struct iwl4965_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3780 struct iwl4965_scanstart_notification
*notif
=
3781 (struct iwl4965_scanstart_notification
*)pkt
->u
.raw
;
3782 priv
->scan_start_tsf
= le32_to_cpu(notif
->tsf_low
);
3783 IWL_DEBUG_SCAN("Scan start: "
3785 "(TSF: 0x%08X:%08X) - %d (beacon timer %u)\n",
3787 notif
->band
? "bg" : "a",
3789 notif
->tsf_low
, notif
->status
, notif
->beacon_timer
);
3792 /* Service SCAN_RESULTS_NOTIFICATION (0x83) */
3793 static void iwl4965_rx_scan_results_notif(struct iwl4965_priv
*priv
,
3794 struct iwl4965_rx_mem_buffer
*rxb
)
3796 struct iwl4965_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3797 struct iwl4965_scanresults_notification
*notif
=
3798 (struct iwl4965_scanresults_notification
*)pkt
->u
.raw
;
3800 IWL_DEBUG_SCAN("Scan ch.res: "
3802 "(TSF: 0x%08X:%08X) - %d "
3803 "elapsed=%lu usec (%dms since last)\n",
3805 notif
->band
? "bg" : "a",
3806 le32_to_cpu(notif
->tsf_high
),
3807 le32_to_cpu(notif
->tsf_low
),
3808 le32_to_cpu(notif
->statistics
[0]),
3809 le32_to_cpu(notif
->tsf_low
) - priv
->scan_start_tsf
,
3810 jiffies_to_msecs(elapsed_jiffies
3811 (priv
->last_scan_jiffies
, jiffies
)));
3813 priv
->last_scan_jiffies
= jiffies
;
3814 priv
->next_scan_jiffies
= 0;
3817 /* Service SCAN_COMPLETE_NOTIFICATION (0x84) */
3818 static void iwl4965_rx_scan_complete_notif(struct iwl4965_priv
*priv
,
3819 struct iwl4965_rx_mem_buffer
*rxb
)
3821 struct iwl4965_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3822 struct iwl4965_scancomplete_notification
*scan_notif
= (void *)pkt
->u
.raw
;
3824 IWL_DEBUG_SCAN("Scan complete: %d channels (TSF 0x%08X:%08X) - %d\n",
3825 scan_notif
->scanned_channels
,
3826 scan_notif
->tsf_low
,
3827 scan_notif
->tsf_high
, scan_notif
->status
);
3829 /* The HW is no longer scanning */
3830 clear_bit(STATUS_SCAN_HW
, &priv
->status
);
3832 /* The scan completion notification came in, so kill that timer... */
3833 cancel_delayed_work(&priv
->scan_check
);
3835 IWL_DEBUG_INFO("Scan pass on %sGHz took %dms\n",
3836 (priv
->scan_bands
== 2) ? "2.4" : "5.2",
3837 jiffies_to_msecs(elapsed_jiffies
3838 (priv
->scan_pass_start
, jiffies
)));
3840 /* Remove this scanned band from the list
3841 * of pending bands to scan */
3844 /* If a request to abort was given, or the scan did not succeed
3845 * then we reset the scan state machine and terminate,
3846 * re-queuing another scan if one has been requested */
3847 if (test_bit(STATUS_SCAN_ABORTING
, &priv
->status
)) {
3848 IWL_DEBUG_INFO("Aborted scan completed.\n");
3849 clear_bit(STATUS_SCAN_ABORTING
, &priv
->status
);
3851 /* If there are more bands on this scan pass reschedule */
3852 if (priv
->scan_bands
> 0)
3856 priv
->last_scan_jiffies
= jiffies
;
3857 priv
->next_scan_jiffies
= 0;
3858 IWL_DEBUG_INFO("Setting scan to off\n");
3860 clear_bit(STATUS_SCANNING
, &priv
->status
);
3862 IWL_DEBUG_INFO("Scan took %dms\n",
3863 jiffies_to_msecs(elapsed_jiffies(priv
->scan_start
, jiffies
)));
3865 queue_work(priv
->workqueue
, &priv
->scan_completed
);
3870 priv
->scan_pass_start
= jiffies
;
3871 queue_work(priv
->workqueue
, &priv
->request_scan
);
3874 /* Handle notification from uCode that card's power state is changing
3875 * due to software, hardware, or critical temperature RFKILL */
3876 static void iwl4965_rx_card_state_notif(struct iwl4965_priv
*priv
,
3877 struct iwl4965_rx_mem_buffer
*rxb
)
3879 struct iwl4965_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3880 u32 flags
= le32_to_cpu(pkt
->u
.card_state_notif
.flags
);
3881 unsigned long status
= priv
->status
;
3883 IWL_DEBUG_RF_KILL("Card state received: HW:%s SW:%s\n",
3884 (flags
& HW_CARD_DISABLED
) ? "Kill" : "On",
3885 (flags
& SW_CARD_DISABLED
) ? "Kill" : "On");
3887 if (flags
& (SW_CARD_DISABLED
| HW_CARD_DISABLED
|
3888 RF_CARD_DISABLED
)) {
3890 iwl4965_write32(priv
, CSR_UCODE_DRV_GP1_SET
,
3891 CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED
);
3893 if (!iwl4965_grab_nic_access(priv
)) {
3894 iwl4965_write_direct32(
3895 priv
, HBUS_TARG_MBX_C
,
3896 HBUS_TARG_MBX_C_REG_BIT_CMD_BLOCKED
);
3898 iwl4965_release_nic_access(priv
);
3901 if (!(flags
& RXON_CARD_DISABLED
)) {
3902 iwl4965_write32(priv
, CSR_UCODE_DRV_GP1_CLR
,
3903 CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED
);
3904 if (!iwl4965_grab_nic_access(priv
)) {
3905 iwl4965_write_direct32(
3906 priv
, HBUS_TARG_MBX_C
,
3907 HBUS_TARG_MBX_C_REG_BIT_CMD_BLOCKED
);
3909 iwl4965_release_nic_access(priv
);
3913 if (flags
& RF_CARD_DISABLED
) {
3914 iwl4965_write32(priv
, CSR_UCODE_DRV_GP1_SET
,
3915 CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT
);
3916 iwl4965_read32(priv
, CSR_UCODE_DRV_GP1
);
3917 if (!iwl4965_grab_nic_access(priv
))
3918 iwl4965_release_nic_access(priv
);
3922 if (flags
& HW_CARD_DISABLED
)
3923 set_bit(STATUS_RF_KILL_HW
, &priv
->status
);
3925 clear_bit(STATUS_RF_KILL_HW
, &priv
->status
);
3928 if (flags
& SW_CARD_DISABLED
)
3929 set_bit(STATUS_RF_KILL_SW
, &priv
->status
);
3931 clear_bit(STATUS_RF_KILL_SW
, &priv
->status
);
3933 if (!(flags
& RXON_CARD_DISABLED
))
3934 iwl4965_scan_cancel(priv
);
3936 if ((test_bit(STATUS_RF_KILL_HW
, &status
) !=
3937 test_bit(STATUS_RF_KILL_HW
, &priv
->status
)) ||
3938 (test_bit(STATUS_RF_KILL_SW
, &status
) !=
3939 test_bit(STATUS_RF_KILL_SW
, &priv
->status
)))
3940 queue_work(priv
->workqueue
, &priv
->rf_kill
);
3942 wake_up_interruptible(&priv
->wait_command_queue
);
3946 * iwl4965_setup_rx_handlers - Initialize Rx handler callbacks
3948 * Setup the RX handlers for each of the reply types sent from the uCode
3951 * This function chains into the hardware specific files for them to setup
3952 * any hardware specific handlers as well.
3954 static void iwl4965_setup_rx_handlers(struct iwl4965_priv
*priv
)
3956 priv
->rx_handlers
[REPLY_ALIVE
] = iwl4965_rx_reply_alive
;
3957 priv
->rx_handlers
[REPLY_ADD_STA
] = iwl4965_rx_reply_add_sta
;
3958 priv
->rx_handlers
[REPLY_ERROR
] = iwl4965_rx_reply_error
;
3959 priv
->rx_handlers
[CHANNEL_SWITCH_NOTIFICATION
] = iwl4965_rx_csa
;
3960 priv
->rx_handlers
[SPECTRUM_MEASURE_NOTIFICATION
] =
3961 iwl4965_rx_spectrum_measure_notif
;
3962 priv
->rx_handlers
[PM_SLEEP_NOTIFICATION
] = iwl4965_rx_pm_sleep_notif
;
3963 priv
->rx_handlers
[PM_DEBUG_STATISTIC_NOTIFIC
] =
3964 iwl4965_rx_pm_debug_statistics_notif
;
3965 priv
->rx_handlers
[BEACON_NOTIFICATION
] = iwl4965_rx_beacon_notif
;
3968 * The same handler is used for both the REPLY to a discrete
3969 * statistics request from the host as well as for the periodic
3970 * statistics notifications (after received beacons) from the uCode.
3972 priv
->rx_handlers
[REPLY_STATISTICS_CMD
] = iwl4965_hw_rx_statistics
;
3973 priv
->rx_handlers
[STATISTICS_NOTIFICATION
] = iwl4965_hw_rx_statistics
;
3975 priv
->rx_handlers
[REPLY_SCAN_CMD
] = iwl4965_rx_reply_scan
;
3976 priv
->rx_handlers
[SCAN_START_NOTIFICATION
] = iwl4965_rx_scan_start_notif
;
3977 priv
->rx_handlers
[SCAN_RESULTS_NOTIFICATION
] =
3978 iwl4965_rx_scan_results_notif
;
3979 priv
->rx_handlers
[SCAN_COMPLETE_NOTIFICATION
] =
3980 iwl4965_rx_scan_complete_notif
;
3981 priv
->rx_handlers
[CARD_STATE_NOTIFICATION
] = iwl4965_rx_card_state_notif
;
3982 priv
->rx_handlers
[REPLY_TX
] = iwl4965_rx_reply_tx
;
3984 /* Set up hardware specific Rx handlers */
3985 iwl4965_hw_rx_handler_setup(priv
);
3989 * iwl4965_tx_cmd_complete - Pull unused buffers off the queue and reclaim them
3990 * @rxb: Rx buffer to reclaim
3992 * If an Rx buffer has an async callback associated with it the callback
3993 * will be executed. The attached skb (if present) will only be freed
3994 * if the callback returns 1
3996 static void iwl4965_tx_cmd_complete(struct iwl4965_priv
*priv
,
3997 struct iwl4965_rx_mem_buffer
*rxb
)
3999 struct iwl4965_rx_packet
*pkt
= (struct iwl4965_rx_packet
*)rxb
->skb
->data
;
4000 u16 sequence
= le16_to_cpu(pkt
->hdr
.sequence
);
4001 int txq_id
= SEQ_TO_QUEUE(sequence
);
4002 int index
= SEQ_TO_INDEX(sequence
);
4003 int huge
= sequence
& SEQ_HUGE_FRAME
;
4005 struct iwl4965_cmd
*cmd
;
4007 /* If a Tx command is being handled and it isn't in the actual
4008 * command queue then there a command routing bug has been introduced
4009 * in the queue management code. */
4010 if (txq_id
!= IWL_CMD_QUEUE_NUM
)
4011 IWL_ERROR("Error wrong command queue %d command id 0x%X\n",
4012 txq_id
, pkt
->hdr
.cmd
);
4013 BUG_ON(txq_id
!= IWL_CMD_QUEUE_NUM
);
4015 cmd_index
= get_cmd_index(&priv
->txq
[IWL_CMD_QUEUE_NUM
].q
, index
, huge
);
4016 cmd
= &priv
->txq
[IWL_CMD_QUEUE_NUM
].cmd
[cmd_index
];
4018 /* Input error checking is done when commands are added to queue. */
4019 if (cmd
->meta
.flags
& CMD_WANT_SKB
) {
4020 cmd
->meta
.source
->u
.skb
= rxb
->skb
;
4022 } else if (cmd
->meta
.u
.callback
&&
4023 !cmd
->meta
.u
.callback(priv
, cmd
, rxb
->skb
))
4026 iwl4965_tx_queue_reclaim(priv
, txq_id
, index
);
4028 if (!(cmd
->meta
.flags
& CMD_ASYNC
)) {
4029 clear_bit(STATUS_HCMD_ACTIVE
, &priv
->status
);
4030 wake_up_interruptible(&priv
->wait_command_queue
);
4034 /************************** RX-FUNCTIONS ****************************/
4036 * Rx theory of operation
4038 * Driver allocates a circular buffer of Receive Buffer Descriptors (RBDs),
4039 * each of which point to Receive Buffers to be filled by 4965. These get
4040 * used not only for Rx frames, but for any command response or notification
4041 * from the 4965. The driver and 4965 manage the Rx buffers by means
4042 * of indexes into the circular buffer.
4045 * The host/firmware share two index registers for managing the Rx buffers.
4047 * The READ index maps to the first position that the firmware may be writing
4048 * to -- the driver can read up to (but not including) this position and get
4050 * The READ index is managed by the firmware once the card is enabled.
4052 * The WRITE index maps to the last position the driver has read from -- the
4053 * position preceding WRITE is the last slot the firmware can place a packet.
4055 * The queue is empty (no good data) if WRITE = READ - 1, and is full if
4058 * During initialization, the host sets up the READ queue position to the first
4059 * INDEX position, and WRITE to the last (READ - 1 wrapped)
4061 * When the firmware places a packet in a buffer, it will advance the READ index
4062 * and fire the RX interrupt. The driver can then query the READ index and
4063 * process as many packets as possible, moving the WRITE index forward as it
4064 * resets the Rx queue buffers with new memory.
4066 * The management in the driver is as follows:
4067 * + A list of pre-allocated SKBs is stored in iwl->rxq->rx_free. When
4068 * iwl->rxq->free_count drops to or below RX_LOW_WATERMARK, work is scheduled
4069 * to replenish the iwl->rxq->rx_free.
4070 * + In iwl4965_rx_replenish (scheduled) if 'processed' != 'read' then the
4071 * iwl->rxq is replenished and the READ INDEX is updated (updating the
4072 * 'processed' and 'read' driver indexes as well)
4073 * + A received packet is processed and handed to the kernel network stack,
4074 * detached from the iwl->rxq. The driver 'processed' index is updated.
4075 * + The Host/Firmware iwl->rxq is replenished at tasklet time from the rx_free
4076 * list. If there are no allocated buffers in iwl->rxq->rx_free, the READ
4077 * INDEX is not incremented and iwl->status(RX_STALLED) is set. If there
4078 * were enough free buffers and RX_STALLED is set it is cleared.
4083 * iwl4965_rx_queue_alloc() Allocates rx_free
4084 * iwl4965_rx_replenish() Replenishes rx_free list from rx_used, and calls
4085 * iwl4965_rx_queue_restock
4086 * iwl4965_rx_queue_restock() Moves available buffers from rx_free into Rx
4087 * queue, updates firmware pointers, and updates
4088 * the WRITE index. If insufficient rx_free buffers
4089 * are available, schedules iwl4965_rx_replenish
4091 * -- enable interrupts --
4092 * ISR - iwl4965_rx() Detach iwl4965_rx_mem_buffers from pool up to the
4093 * READ INDEX, detaching the SKB from the pool.
4094 * Moves the packet buffer from queue to rx_used.
4095 * Calls iwl4965_rx_queue_restock to refill any empty
4102 * iwl4965_rx_queue_space - Return number of free slots available in queue.
4104 static int iwl4965_rx_queue_space(const struct iwl4965_rx_queue
*q
)
4106 int s
= q
->read
- q
->write
;
4109 /* keep some buffer to not confuse full and empty queue */
4117 * iwl4965_rx_queue_update_write_ptr - Update the write pointer for the RX queue
4119 int iwl4965_rx_queue_update_write_ptr(struct iwl4965_priv
*priv
, struct iwl4965_rx_queue
*q
)
4123 unsigned long flags
;
4125 spin_lock_irqsave(&q
->lock
, flags
);
4127 if (q
->need_update
== 0)
4130 /* If power-saving is in use, make sure device is awake */
4131 if (test_bit(STATUS_POWER_PMI
, &priv
->status
)) {
4132 reg
= iwl4965_read32(priv
, CSR_UCODE_DRV_GP1
);
4134 if (reg
& CSR_UCODE_DRV_GP1_BIT_MAC_SLEEP
) {
4135 iwl4965_set_bit(priv
, CSR_GP_CNTRL
,
4136 CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ
);
4140 rc
= iwl4965_grab_nic_access(priv
);
4144 /* Device expects a multiple of 8 */
4145 iwl4965_write_direct32(priv
, FH_RSCSR_CHNL0_WPTR
,
4147 iwl4965_release_nic_access(priv
);
4149 /* Else device is assumed to be awake */
4151 /* Device expects a multiple of 8 */
4152 iwl4965_write32(priv
, FH_RSCSR_CHNL0_WPTR
, q
->write
& ~0x7);
4158 spin_unlock_irqrestore(&q
->lock
, flags
);
4163 * iwl4965_dma_addr2rbd_ptr - convert a DMA address to a uCode read buffer ptr
4165 static inline __le32
iwl4965_dma_addr2rbd_ptr(struct iwl4965_priv
*priv
,
4166 dma_addr_t dma_addr
)
4168 return cpu_to_le32((u32
)(dma_addr
>> 8));
4173 * iwl4965_rx_queue_restock - refill RX queue from pre-allocated pool
4175 * If there are slots in the RX queue that need to be restocked,
4176 * and we have free pre-allocated buffers, fill the ranks as much
4177 * as we can, pulling from rx_free.
4179 * This moves the 'write' index forward to catch up with 'processed', and
4180 * also updates the memory address in the firmware to reference the new
4183 static int iwl4965_rx_queue_restock(struct iwl4965_priv
*priv
)
4185 struct iwl4965_rx_queue
*rxq
= &priv
->rxq
;
4186 struct list_head
*element
;
4187 struct iwl4965_rx_mem_buffer
*rxb
;
4188 unsigned long flags
;
4191 spin_lock_irqsave(&rxq
->lock
, flags
);
4192 write
= rxq
->write
& ~0x7;
4193 while ((iwl4965_rx_queue_space(rxq
) > 0) && (rxq
->free_count
)) {
4194 /* Get next free Rx buffer, remove from free list */
4195 element
= rxq
->rx_free
.next
;
4196 rxb
= list_entry(element
, struct iwl4965_rx_mem_buffer
, list
);
4199 /* Point to Rx buffer via next RBD in circular buffer */
4200 rxq
->bd
[rxq
->write
] = iwl4965_dma_addr2rbd_ptr(priv
, rxb
->dma_addr
);
4201 rxq
->queue
[rxq
->write
] = rxb
;
4202 rxq
->write
= (rxq
->write
+ 1) & RX_QUEUE_MASK
;
4205 spin_unlock_irqrestore(&rxq
->lock
, flags
);
4206 /* If the pre-allocated buffer pool is dropping low, schedule to
4208 if (rxq
->free_count
<= RX_LOW_WATERMARK
)
4209 queue_work(priv
->workqueue
, &priv
->rx_replenish
);
4212 /* If we've added more space for the firmware to place data, tell it.
4213 * Increment device's write pointer in multiples of 8. */
4214 if ((write
!= (rxq
->write
& ~0x7))
4215 || (abs(rxq
->write
- rxq
->read
) > 7)) {
4216 spin_lock_irqsave(&rxq
->lock
, flags
);
4217 rxq
->need_update
= 1;
4218 spin_unlock_irqrestore(&rxq
->lock
, flags
);
4219 rc
= iwl4965_rx_queue_update_write_ptr(priv
, rxq
);
4228 * iwl4965_rx_replenish - Move all used packet from rx_used to rx_free
4230 * When moving to rx_free an SKB is allocated for the slot.
4232 * Also restock the Rx queue via iwl4965_rx_queue_restock.
4233 * This is called as a scheduled work item (except for during initialization)
4235 static void iwl4965_rx_allocate(struct iwl4965_priv
*priv
)
4237 struct iwl4965_rx_queue
*rxq
= &priv
->rxq
;
4238 struct list_head
*element
;
4239 struct iwl4965_rx_mem_buffer
*rxb
;
4240 unsigned long flags
;
4241 spin_lock_irqsave(&rxq
->lock
, flags
);
4242 while (!list_empty(&rxq
->rx_used
)) {
4243 element
= rxq
->rx_used
.next
;
4244 rxb
= list_entry(element
, struct iwl4965_rx_mem_buffer
, list
);
4246 /* Alloc a new receive buffer */
4248 alloc_skb(priv
->hw_setting
.rx_buf_size
,
4249 __GFP_NOWARN
| GFP_ATOMIC
);
4251 if (net_ratelimit())
4252 printk(KERN_CRIT DRV_NAME
4253 ": Can not allocate SKB buffers\n");
4254 /* We don't reschedule replenish work here -- we will
4255 * call the restock method and if it still needs
4256 * more buffers it will schedule replenish */
4259 priv
->alloc_rxb_skb
++;
4262 /* Get physical address of RB/SKB */
4264 pci_map_single(priv
->pci_dev
, rxb
->skb
->data
,
4265 priv
->hw_setting
.rx_buf_size
, PCI_DMA_FROMDEVICE
);
4266 list_add_tail(&rxb
->list
, &rxq
->rx_free
);
4269 spin_unlock_irqrestore(&rxq
->lock
, flags
);
4273 * this should be called while priv->lock is locked
4275 static void __iwl4965_rx_replenish(void *data
)
4277 struct iwl4965_priv
*priv
= data
;
4279 iwl4965_rx_allocate(priv
);
4280 iwl4965_rx_queue_restock(priv
);
4284 void iwl4965_rx_replenish(void *data
)
4286 struct iwl4965_priv
*priv
= data
;
4287 unsigned long flags
;
4289 iwl4965_rx_allocate(priv
);
4291 spin_lock_irqsave(&priv
->lock
, flags
);
4292 iwl4965_rx_queue_restock(priv
);
4293 spin_unlock_irqrestore(&priv
->lock
, flags
);
4296 /* Assumes that the skb field of the buffers in 'pool' is kept accurate.
4297 * If an SKB has been detached, the POOL needs to have its SKB set to NULL
4298 * This free routine walks the list of POOL entries and if SKB is set to
4299 * non NULL it is unmapped and freed
4301 static void iwl4965_rx_queue_free(struct iwl4965_priv
*priv
, struct iwl4965_rx_queue
*rxq
)
4304 for (i
= 0; i
< RX_QUEUE_SIZE
+ RX_FREE_BUFFERS
; i
++) {
4305 if (rxq
->pool
[i
].skb
!= NULL
) {
4306 pci_unmap_single(priv
->pci_dev
,
4307 rxq
->pool
[i
].dma_addr
,
4308 priv
->hw_setting
.rx_buf_size
,
4309 PCI_DMA_FROMDEVICE
);
4310 dev_kfree_skb(rxq
->pool
[i
].skb
);
4314 pci_free_consistent(priv
->pci_dev
, 4 * RX_QUEUE_SIZE
, rxq
->bd
,
4319 int iwl4965_rx_queue_alloc(struct iwl4965_priv
*priv
)
4321 struct iwl4965_rx_queue
*rxq
= &priv
->rxq
;
4322 struct pci_dev
*dev
= priv
->pci_dev
;
4325 spin_lock_init(&rxq
->lock
);
4326 INIT_LIST_HEAD(&rxq
->rx_free
);
4327 INIT_LIST_HEAD(&rxq
->rx_used
);
4329 /* Alloc the circular buffer of Read Buffer Descriptors (RBDs) */
4330 rxq
->bd
= pci_alloc_consistent(dev
, 4 * RX_QUEUE_SIZE
, &rxq
->dma_addr
);
4334 /* Fill the rx_used queue with _all_ of the Rx buffers */
4335 for (i
= 0; i
< RX_FREE_BUFFERS
+ RX_QUEUE_SIZE
; i
++)
4336 list_add_tail(&rxq
->pool
[i
].list
, &rxq
->rx_used
);
4338 /* Set us so that we have processed and used all buffers, but have
4339 * not restocked the Rx queue with fresh buffers */
4340 rxq
->read
= rxq
->write
= 0;
4341 rxq
->free_count
= 0;
4342 rxq
->need_update
= 0;
4346 void iwl4965_rx_queue_reset(struct iwl4965_priv
*priv
, struct iwl4965_rx_queue
*rxq
)
4348 unsigned long flags
;
4350 spin_lock_irqsave(&rxq
->lock
, flags
);
4351 INIT_LIST_HEAD(&rxq
->rx_free
);
4352 INIT_LIST_HEAD(&rxq
->rx_used
);
4353 /* Fill the rx_used queue with _all_ of the Rx buffers */
4354 for (i
= 0; i
< RX_FREE_BUFFERS
+ RX_QUEUE_SIZE
; i
++) {
4355 /* In the reset function, these buffers may have been allocated
4356 * to an SKB, so we need to unmap and free potential storage */
4357 if (rxq
->pool
[i
].skb
!= NULL
) {
4358 pci_unmap_single(priv
->pci_dev
,
4359 rxq
->pool
[i
].dma_addr
,
4360 priv
->hw_setting
.rx_buf_size
,
4361 PCI_DMA_FROMDEVICE
);
4362 priv
->alloc_rxb_skb
--;
4363 dev_kfree_skb(rxq
->pool
[i
].skb
);
4364 rxq
->pool
[i
].skb
= NULL
;
4366 list_add_tail(&rxq
->pool
[i
].list
, &rxq
->rx_used
);
4369 /* Set us so that we have processed and used all buffers, but have
4370 * not restocked the Rx queue with fresh buffers */
4371 rxq
->read
= rxq
->write
= 0;
4372 rxq
->free_count
= 0;
4373 spin_unlock_irqrestore(&rxq
->lock
, flags
);
4376 /* Convert linear signal-to-noise ratio into dB */
4377 static u8 ratio2dB
[100] = {
4378 /* 0 1 2 3 4 5 6 7 8 9 */
4379 0, 0, 6, 10, 12, 14, 16, 17, 18, 19, /* 00 - 09 */
4380 20, 21, 22, 22, 23, 23, 24, 25, 26, 26, /* 10 - 19 */
4381 26, 26, 26, 27, 27, 28, 28, 28, 29, 29, /* 20 - 29 */
4382 29, 30, 30, 30, 31, 31, 31, 31, 32, 32, /* 30 - 39 */
4383 32, 32, 32, 33, 33, 33, 33, 33, 34, 34, /* 40 - 49 */
4384 34, 34, 34, 34, 35, 35, 35, 35, 35, 35, /* 50 - 59 */
4385 36, 36, 36, 36, 36, 36, 36, 37, 37, 37, /* 60 - 69 */
4386 37, 37, 37, 37, 37, 38, 38, 38, 38, 38, /* 70 - 79 */
4387 38, 38, 38, 38, 38, 39, 39, 39, 39, 39, /* 80 - 89 */
4388 39, 39, 39, 39, 39, 40, 40, 40, 40, 40 /* 90 - 99 */
4391 /* Calculates a relative dB value from a ratio of linear
4392 * (i.e. not dB) signal levels.
4393 * Conversion assumes that levels are voltages (20*log), not powers (10*log). */
4394 int iwl4965_calc_db_from_ratio(int sig_ratio
)
4396 /* 1000:1 or higher just report as 60 dB */
4397 if (sig_ratio
>= 1000)
4400 /* 100:1 or higher, divide by 10 and use table,
4401 * add 20 dB to make up for divide by 10 */
4402 if (sig_ratio
>= 100)
4403 return (20 + (int)ratio2dB
[sig_ratio
/10]);
4405 /* We shouldn't see this */
4409 /* Use table for ratios 1:1 - 99:1 */
4410 return (int)ratio2dB
[sig_ratio
];
4413 #define PERFECT_RSSI (-20) /* dBm */
4414 #define WORST_RSSI (-95) /* dBm */
4415 #define RSSI_RANGE (PERFECT_RSSI - WORST_RSSI)
4417 /* Calculate an indication of rx signal quality (a percentage, not dBm!).
4418 * See http://www.ces.clemson.edu/linux/signal_quality.shtml for info
4419 * about formulas used below. */
4420 int iwl4965_calc_sig_qual(int rssi_dbm
, int noise_dbm
)
4423 int degradation
= PERFECT_RSSI
- rssi_dbm
;
4425 /* If we get a noise measurement, use signal-to-noise ratio (SNR)
4426 * as indicator; formula is (signal dbm - noise dbm).
4427 * SNR at or above 40 is a great signal (100%).
4428 * Below that, scale to fit SNR of 0 - 40 dB within 0 - 100% indicator.
4429 * Weakest usable signal is usually 10 - 15 dB SNR. */
4431 if (rssi_dbm
- noise_dbm
>= 40)
4433 else if (rssi_dbm
< noise_dbm
)
4435 sig_qual
= ((rssi_dbm
- noise_dbm
) * 5) / 2;
4437 /* Else use just the signal level.
4438 * This formula is a least squares fit of data points collected and
4439 * compared with a reference system that had a percentage (%) display
4440 * for signal quality. */
4442 sig_qual
= (100 * (RSSI_RANGE
* RSSI_RANGE
) - degradation
*
4443 (15 * RSSI_RANGE
+ 62 * degradation
)) /
4444 (RSSI_RANGE
* RSSI_RANGE
);
4448 else if (sig_qual
< 1)
4455 * iwl4965_rx_handle - Main entry function for receiving responses from uCode
4457 * Uses the priv->rx_handlers callback function array to invoke
4458 * the appropriate handlers, including command responses,
4459 * frame-received notifications, and other notifications.
4461 static void iwl4965_rx_handle(struct iwl4965_priv
*priv
)
4463 struct iwl4965_rx_mem_buffer
*rxb
;
4464 struct iwl4965_rx_packet
*pkt
;
4465 struct iwl4965_rx_queue
*rxq
= &priv
->rxq
;
4468 unsigned long flags
;
4472 /* uCode's read index (stored in shared DRAM) indicates the last Rx
4473 * buffer that the driver may process (last buffer filled by ucode). */
4474 r
= iwl4965_hw_get_rx_read(priv
);
4477 /* Rx interrupt, but nothing sent from uCode */
4479 IWL_DEBUG(IWL_DL_RX
| IWL_DL_ISR
, "r = %d, i = %d\n", r
, i
);
4481 if (iwl4965_rx_queue_space(rxq
) > (RX_QUEUE_SIZE
/ 2))
4485 rxb
= rxq
->queue
[i
];
4487 /* If an RXB doesn't have a Rx queue slot associated with it,
4488 * then a bug has been introduced in the queue refilling
4489 * routines -- catch it here */
4490 BUG_ON(rxb
== NULL
);
4492 rxq
->queue
[i
] = NULL
;
4494 pci_dma_sync_single_for_cpu(priv
->pci_dev
, rxb
->dma_addr
,
4495 priv
->hw_setting
.rx_buf_size
,
4496 PCI_DMA_FROMDEVICE
);
4497 pkt
= (struct iwl4965_rx_packet
*)rxb
->skb
->data
;
4499 /* Reclaim a command buffer only if this packet is a response
4500 * to a (driver-originated) command.
4501 * If the packet (e.g. Rx frame) originated from uCode,
4502 * there is no command buffer to reclaim.
4503 * Ucode should set SEQ_RX_FRAME bit if ucode-originated,
4504 * but apparently a few don't get set; catch them here. */
4505 reclaim
= !(pkt
->hdr
.sequence
& SEQ_RX_FRAME
) &&
4506 (pkt
->hdr
.cmd
!= REPLY_RX_PHY_CMD
) &&
4507 (pkt
->hdr
.cmd
!= REPLY_4965_RX
) &&
4508 (pkt
->hdr
.cmd
!= REPLY_COMPRESSED_BA
) &&
4509 (pkt
->hdr
.cmd
!= STATISTICS_NOTIFICATION
) &&
4510 (pkt
->hdr
.cmd
!= REPLY_TX
);
4512 /* Based on type of command response or notification,
4513 * handle those that need handling via function in
4514 * rx_handlers table. See iwl4965_setup_rx_handlers() */
4515 if (priv
->rx_handlers
[pkt
->hdr
.cmd
]) {
4516 IWL_DEBUG(IWL_DL_HOST_COMMAND
| IWL_DL_RX
| IWL_DL_ISR
,
4517 "r = %d, i = %d, %s, 0x%02x\n", r
, i
,
4518 get_cmd_string(pkt
->hdr
.cmd
), pkt
->hdr
.cmd
);
4519 priv
->rx_handlers
[pkt
->hdr
.cmd
] (priv
, rxb
);
4521 /* No handling needed */
4522 IWL_DEBUG(IWL_DL_HOST_COMMAND
| IWL_DL_RX
| IWL_DL_ISR
,
4523 "r %d i %d No handler needed for %s, 0x%02x\n",
4524 r
, i
, get_cmd_string(pkt
->hdr
.cmd
),
4529 /* Invoke any callbacks, transfer the skb to caller, and
4530 * fire off the (possibly) blocking iwl4965_send_cmd()
4531 * as we reclaim the driver command queue */
4532 if (rxb
&& rxb
->skb
)
4533 iwl4965_tx_cmd_complete(priv
, rxb
);
4535 IWL_WARNING("Claim null rxb?\n");
4538 /* For now we just don't re-use anything. We can tweak this
4539 * later to try and re-use notification packets and SKBs that
4540 * fail to Rx correctly */
4541 if (rxb
->skb
!= NULL
) {
4542 priv
->alloc_rxb_skb
--;
4543 dev_kfree_skb_any(rxb
->skb
);
4547 pci_unmap_single(priv
->pci_dev
, rxb
->dma_addr
,
4548 priv
->hw_setting
.rx_buf_size
,
4549 PCI_DMA_FROMDEVICE
);
4550 spin_lock_irqsave(&rxq
->lock
, flags
);
4551 list_add_tail(&rxb
->list
, &priv
->rxq
.rx_used
);
4552 spin_unlock_irqrestore(&rxq
->lock
, flags
);
4553 i
= (i
+ 1) & RX_QUEUE_MASK
;
4554 /* If there are a lot of unused frames,
4555 * restock the Rx queue so ucode wont assert. */
4560 __iwl4965_rx_replenish(priv
);
4566 /* Backtrack one entry */
4568 iwl4965_rx_queue_restock(priv
);
4572 * iwl4965_tx_queue_update_write_ptr - Send new write index to hardware
4574 static int iwl4965_tx_queue_update_write_ptr(struct iwl4965_priv
*priv
,
4575 struct iwl4965_tx_queue
*txq
)
4579 int txq_id
= txq
->q
.id
;
4581 if (txq
->need_update
== 0)
4584 /* if we're trying to save power */
4585 if (test_bit(STATUS_POWER_PMI
, &priv
->status
)) {
4586 /* wake up nic if it's powered down ...
4587 * uCode will wake up, and interrupt us again, so next
4588 * time we'll skip this part. */
4589 reg
= iwl4965_read32(priv
, CSR_UCODE_DRV_GP1
);
4591 if (reg
& CSR_UCODE_DRV_GP1_BIT_MAC_SLEEP
) {
4592 IWL_DEBUG_INFO("Requesting wakeup, GP1 = 0x%x\n", reg
);
4593 iwl4965_set_bit(priv
, CSR_GP_CNTRL
,
4594 CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ
);
4598 /* restore this queue's parameters in nic hardware. */
4599 rc
= iwl4965_grab_nic_access(priv
);
4602 iwl4965_write_direct32(priv
, HBUS_TARG_WRPTR
,
4603 txq
->q
.write_ptr
| (txq_id
<< 8));
4604 iwl4965_release_nic_access(priv
);
4606 /* else not in power-save mode, uCode will never sleep when we're
4607 * trying to tx (during RFKILL, we're not trying to tx). */
4609 iwl4965_write32(priv
, HBUS_TARG_WRPTR
,
4610 txq
->q
.write_ptr
| (txq_id
<< 8));
4612 txq
->need_update
= 0;
4617 #ifdef CONFIG_IWL4965_DEBUG
4618 static void iwl4965_print_rx_config_cmd(struct iwl4965_rxon_cmd
*rxon
)
4620 DECLARE_MAC_BUF(mac
);
4622 IWL_DEBUG_RADIO("RX CONFIG:\n");
4623 iwl4965_print_hex_dump(IWL_DL_RADIO
, (u8
*) rxon
, sizeof(*rxon
));
4624 IWL_DEBUG_RADIO("u16 channel: 0x%x\n", le16_to_cpu(rxon
->channel
));
4625 IWL_DEBUG_RADIO("u32 flags: 0x%08X\n", le32_to_cpu(rxon
->flags
));
4626 IWL_DEBUG_RADIO("u32 filter_flags: 0x%08x\n",
4627 le32_to_cpu(rxon
->filter_flags
));
4628 IWL_DEBUG_RADIO("u8 dev_type: 0x%x\n", rxon
->dev_type
);
4629 IWL_DEBUG_RADIO("u8 ofdm_basic_rates: 0x%02x\n",
4630 rxon
->ofdm_basic_rates
);
4631 IWL_DEBUG_RADIO("u8 cck_basic_rates: 0x%02x\n", rxon
->cck_basic_rates
);
4632 IWL_DEBUG_RADIO("u8[6] node_addr: %s\n",
4633 print_mac(mac
, rxon
->node_addr
));
4634 IWL_DEBUG_RADIO("u8[6] bssid_addr: %s\n",
4635 print_mac(mac
, rxon
->bssid_addr
));
4636 IWL_DEBUG_RADIO("u16 assoc_id: 0x%x\n", le16_to_cpu(rxon
->assoc_id
));
4640 static void iwl4965_enable_interrupts(struct iwl4965_priv
*priv
)
4642 IWL_DEBUG_ISR("Enabling interrupts\n");
4643 set_bit(STATUS_INT_ENABLED
, &priv
->status
);
4644 iwl4965_write32(priv
, CSR_INT_MASK
, CSR_INI_SET_MASK
);
4647 static inline void iwl4965_disable_interrupts(struct iwl4965_priv
*priv
)
4649 clear_bit(STATUS_INT_ENABLED
, &priv
->status
);
4651 /* disable interrupts from uCode/NIC to host */
4652 iwl4965_write32(priv
, CSR_INT_MASK
, 0x00000000);
4654 /* acknowledge/clear/reset any interrupts still pending
4655 * from uCode or flow handler (Rx/Tx DMA) */
4656 iwl4965_write32(priv
, CSR_INT
, 0xffffffff);
4657 iwl4965_write32(priv
, CSR_FH_INT_STATUS
, 0xffffffff);
4658 IWL_DEBUG_ISR("Disabled interrupts\n");
4661 static const char *desc_lookup(int i
)
4669 return "BAD_CHECKSUM";
4671 return "NMI_INTERRUPT";
4675 return "FATAL_ERROR";
4681 #define ERROR_START_OFFSET (1 * sizeof(u32))
4682 #define ERROR_ELEM_SIZE (7 * sizeof(u32))
4684 static void iwl4965_dump_nic_error_log(struct iwl4965_priv
*priv
)
4687 u32 desc
, time
, count
, base
, data1
;
4688 u32 blink1
, blink2
, ilink1
, ilink2
;
4691 base
= le32_to_cpu(priv
->card_alive
.error_event_table_ptr
);
4693 if (!iwl4965_hw_valid_rtc_data_addr(base
)) {
4694 IWL_ERROR("Not valid error log pointer 0x%08X\n", base
);
4698 rc
= iwl4965_grab_nic_access(priv
);
4700 IWL_WARNING("Can not read from adapter at this time.\n");
4704 count
= iwl4965_read_targ_mem(priv
, base
);
4706 if (ERROR_START_OFFSET
<= count
* ERROR_ELEM_SIZE
) {
4707 IWL_ERROR("Start IWL Error Log Dump:\n");
4708 IWL_ERROR("Status: 0x%08lX, count: %d\n", priv
->status
, count
);
4711 desc
= iwl4965_read_targ_mem(priv
, base
+ 1 * sizeof(u32
));
4712 blink1
= iwl4965_read_targ_mem(priv
, base
+ 3 * sizeof(u32
));
4713 blink2
= iwl4965_read_targ_mem(priv
, base
+ 4 * sizeof(u32
));
4714 ilink1
= iwl4965_read_targ_mem(priv
, base
+ 5 * sizeof(u32
));
4715 ilink2
= iwl4965_read_targ_mem(priv
, base
+ 6 * sizeof(u32
));
4716 data1
= iwl4965_read_targ_mem(priv
, base
+ 7 * sizeof(u32
));
4717 data2
= iwl4965_read_targ_mem(priv
, base
+ 8 * sizeof(u32
));
4718 line
= iwl4965_read_targ_mem(priv
, base
+ 9 * sizeof(u32
));
4719 time
= iwl4965_read_targ_mem(priv
, base
+ 11 * sizeof(u32
));
4721 IWL_ERROR("Desc Time "
4722 "data1 data2 line\n");
4723 IWL_ERROR("%-13s (#%d) %010u 0x%08X 0x%08X %u\n",
4724 desc_lookup(desc
), desc
, time
, data1
, data2
, line
);
4725 IWL_ERROR("blink1 blink2 ilink1 ilink2\n");
4726 IWL_ERROR("0x%05X 0x%05X 0x%05X 0x%05X\n", blink1
, blink2
,
4729 iwl4965_release_nic_access(priv
);
4732 #define EVENT_START_OFFSET (4 * sizeof(u32))
4735 * iwl4965_print_event_log - Dump error event log to syslog
4737 * NOTE: Must be called with iwl4965_grab_nic_access() already obtained!
4739 static void iwl4965_print_event_log(struct iwl4965_priv
*priv
, u32 start_idx
,
4740 u32 num_events
, u32 mode
)
4743 u32 base
; /* SRAM byte address of event log header */
4744 u32 event_size
; /* 2 u32s, or 3 u32s if timestamp recorded */
4745 u32 ptr
; /* SRAM byte address of log data */
4746 u32 ev
, time
, data
; /* event log data */
4748 if (num_events
== 0)
4751 base
= le32_to_cpu(priv
->card_alive
.log_event_table_ptr
);
4754 event_size
= 2 * sizeof(u32
);
4756 event_size
= 3 * sizeof(u32
);
4758 ptr
= base
+ EVENT_START_OFFSET
+ (start_idx
* event_size
);
4760 /* "time" is actually "data" for mode 0 (no timestamp).
4761 * place event id # at far right for easier visual parsing. */
4762 for (i
= 0; i
< num_events
; i
++) {
4763 ev
= iwl4965_read_targ_mem(priv
, ptr
);
4765 time
= iwl4965_read_targ_mem(priv
, ptr
);
4768 IWL_ERROR("0x%08x\t%04u\n", time
, ev
); /* data, ev */
4770 data
= iwl4965_read_targ_mem(priv
, ptr
);
4772 IWL_ERROR("%010u\t0x%08x\t%04u\n", time
, data
, ev
);
4777 static void iwl4965_dump_nic_event_log(struct iwl4965_priv
*priv
)
4780 u32 base
; /* SRAM byte address of event log header */
4781 u32 capacity
; /* event log capacity in # entries */
4782 u32 mode
; /* 0 - no timestamp, 1 - timestamp recorded */
4783 u32 num_wraps
; /* # times uCode wrapped to top of log */
4784 u32 next_entry
; /* index of next entry to be written by uCode */
4785 u32 size
; /* # entries that we'll print */
4787 base
= le32_to_cpu(priv
->card_alive
.log_event_table_ptr
);
4788 if (!iwl4965_hw_valid_rtc_data_addr(base
)) {
4789 IWL_ERROR("Invalid event log pointer 0x%08X\n", base
);
4793 rc
= iwl4965_grab_nic_access(priv
);
4795 IWL_WARNING("Can not read from adapter at this time.\n");
4799 /* event log header */
4800 capacity
= iwl4965_read_targ_mem(priv
, base
);
4801 mode
= iwl4965_read_targ_mem(priv
, base
+ (1 * sizeof(u32
)));
4802 num_wraps
= iwl4965_read_targ_mem(priv
, base
+ (2 * sizeof(u32
)));
4803 next_entry
= iwl4965_read_targ_mem(priv
, base
+ (3 * sizeof(u32
)));
4805 size
= num_wraps
? capacity
: next_entry
;
4807 /* bail out if nothing in log */
4809 IWL_ERROR("Start IWL Event Log Dump: nothing in log\n");
4810 iwl4965_release_nic_access(priv
);
4814 IWL_ERROR("Start IWL Event Log Dump: display count %d, wraps %d\n",
4817 /* if uCode has wrapped back to top of log, start at the oldest entry,
4818 * i.e the next one that uCode would fill. */
4820 iwl4965_print_event_log(priv
, next_entry
,
4821 capacity
- next_entry
, mode
);
4823 /* (then/else) start at top of log */
4824 iwl4965_print_event_log(priv
, 0, next_entry
, mode
);
4826 iwl4965_release_nic_access(priv
);
4830 * iwl4965_irq_handle_error - called for HW or SW error interrupt from card
4832 static void iwl4965_irq_handle_error(struct iwl4965_priv
*priv
)
4834 /* Set the FW error flag -- cleared on iwl4965_down */
4835 set_bit(STATUS_FW_ERROR
, &priv
->status
);
4837 /* Cancel currently queued command. */
4838 clear_bit(STATUS_HCMD_ACTIVE
, &priv
->status
);
4840 #ifdef CONFIG_IWL4965_DEBUG
4841 if (iwl4965_debug_level
& IWL_DL_FW_ERRORS
) {
4842 iwl4965_dump_nic_error_log(priv
);
4843 iwl4965_dump_nic_event_log(priv
);
4844 iwl4965_print_rx_config_cmd(&priv
->staging_rxon
);
4848 wake_up_interruptible(&priv
->wait_command_queue
);
4850 /* Keep the restart process from trying to send host
4851 * commands by clearing the INIT status bit */
4852 clear_bit(STATUS_READY
, &priv
->status
);
4854 if (!test_bit(STATUS_EXIT_PENDING
, &priv
->status
)) {
4855 IWL_DEBUG(IWL_DL_INFO
| IWL_DL_FW_ERRORS
,
4856 "Restarting adapter due to uCode error.\n");
4858 if (iwl4965_is_associated(priv
)) {
4859 memcpy(&priv
->recovery_rxon
, &priv
->active_rxon
,
4860 sizeof(priv
->recovery_rxon
));
4861 priv
->error_recovering
= 1;
4863 queue_work(priv
->workqueue
, &priv
->restart
);
4867 static void iwl4965_error_recovery(struct iwl4965_priv
*priv
)
4869 unsigned long flags
;
4871 memcpy(&priv
->staging_rxon
, &priv
->recovery_rxon
,
4872 sizeof(priv
->staging_rxon
));
4873 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
4874 iwl4965_commit_rxon(priv
);
4876 iwl4965_rxon_add_station(priv
, priv
->bssid
, 1);
4878 spin_lock_irqsave(&priv
->lock
, flags
);
4879 priv
->assoc_id
= le16_to_cpu(priv
->staging_rxon
.assoc_id
);
4880 priv
->error_recovering
= 0;
4881 spin_unlock_irqrestore(&priv
->lock
, flags
);
4884 static void iwl4965_irq_tasklet(struct iwl4965_priv
*priv
)
4886 u32 inta
, handled
= 0;
4888 unsigned long flags
;
4889 #ifdef CONFIG_IWL4965_DEBUG
4893 spin_lock_irqsave(&priv
->lock
, flags
);
4895 /* Ack/clear/reset pending uCode interrupts.
4896 * Note: Some bits in CSR_INT are "OR" of bits in CSR_FH_INT_STATUS,
4897 * and will clear only when CSR_FH_INT_STATUS gets cleared. */
4898 inta
= iwl4965_read32(priv
, CSR_INT
);
4899 iwl4965_write32(priv
, CSR_INT
, inta
);
4901 /* Ack/clear/reset pending flow-handler (DMA) interrupts.
4902 * Any new interrupts that happen after this, either while we're
4903 * in this tasklet, or later, will show up in next ISR/tasklet. */
4904 inta_fh
= iwl4965_read32(priv
, CSR_FH_INT_STATUS
);
4905 iwl4965_write32(priv
, CSR_FH_INT_STATUS
, inta_fh
);
4907 #ifdef CONFIG_IWL4965_DEBUG
4908 if (iwl4965_debug_level
& IWL_DL_ISR
) {
4909 /* just for debug */
4910 inta_mask
= iwl4965_read32(priv
, CSR_INT_MASK
);
4911 IWL_DEBUG_ISR("inta 0x%08x, enabled 0x%08x, fh 0x%08x\n",
4912 inta
, inta_mask
, inta_fh
);
4916 /* Since CSR_INT and CSR_FH_INT_STATUS reads and clears are not
4917 * atomic, make sure that inta covers all the interrupts that
4918 * we've discovered, even if FH interrupt came in just after
4919 * reading CSR_INT. */
4920 if (inta_fh
& CSR_FH_INT_RX_MASK
)
4921 inta
|= CSR_INT_BIT_FH_RX
;
4922 if (inta_fh
& CSR_FH_INT_TX_MASK
)
4923 inta
|= CSR_INT_BIT_FH_TX
;
4925 /* Now service all interrupt bits discovered above. */
4926 if (inta
& CSR_INT_BIT_HW_ERR
) {
4927 IWL_ERROR("Microcode HW error detected. Restarting.\n");
4929 /* Tell the device to stop sending interrupts */
4930 iwl4965_disable_interrupts(priv
);
4932 iwl4965_irq_handle_error(priv
);
4934 handled
|= CSR_INT_BIT_HW_ERR
;
4936 spin_unlock_irqrestore(&priv
->lock
, flags
);
4941 #ifdef CONFIG_IWL4965_DEBUG
4942 if (iwl4965_debug_level
& (IWL_DL_ISR
)) {
4943 /* NIC fires this, but we don't use it, redundant with WAKEUP */
4944 if (inta
& CSR_INT_BIT_SCD
)
4945 IWL_DEBUG_ISR("Scheduler finished to transmit "
4946 "the frame/frames.\n");
4948 /* Alive notification via Rx interrupt will do the real work */
4949 if (inta
& CSR_INT_BIT_ALIVE
)
4950 IWL_DEBUG_ISR("Alive interrupt\n");
4953 /* Safely ignore these bits for debug checks below */
4954 inta
&= ~(CSR_INT_BIT_SCD
| CSR_INT_BIT_ALIVE
);
4956 /* HW RF KILL switch toggled */
4957 if (inta
& CSR_INT_BIT_RF_KILL
) {
4959 if (!(iwl4965_read32(priv
, CSR_GP_CNTRL
) &
4960 CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW
))
4963 IWL_DEBUG(IWL_DL_INFO
| IWL_DL_RF_KILL
| IWL_DL_ISR
,
4964 "RF_KILL bit toggled to %s.\n",
4965 hw_rf_kill
? "disable radio":"enable radio");
4967 /* Queue restart only if RF_KILL switch was set to "kill"
4968 * when we loaded driver, and is now set to "enable".
4969 * After we're Alive, RF_KILL gets handled by
4970 * iwl4965_rx_card_state_notif() */
4971 if (!hw_rf_kill
&& !test_bit(STATUS_ALIVE
, &priv
->status
)) {
4972 clear_bit(STATUS_RF_KILL_HW
, &priv
->status
);
4973 queue_work(priv
->workqueue
, &priv
->restart
);
4976 handled
|= CSR_INT_BIT_RF_KILL
;
4979 /* Chip got too hot and stopped itself */
4980 if (inta
& CSR_INT_BIT_CT_KILL
) {
4981 IWL_ERROR("Microcode CT kill error detected.\n");
4982 handled
|= CSR_INT_BIT_CT_KILL
;
4985 /* Error detected by uCode */
4986 if (inta
& CSR_INT_BIT_SW_ERR
) {
4987 IWL_ERROR("Microcode SW error detected. Restarting 0x%X.\n",
4989 iwl4965_irq_handle_error(priv
);
4990 handled
|= CSR_INT_BIT_SW_ERR
;
4993 /* uCode wakes up after power-down sleep */
4994 if (inta
& CSR_INT_BIT_WAKEUP
) {
4995 IWL_DEBUG_ISR("Wakeup interrupt\n");
4996 iwl4965_rx_queue_update_write_ptr(priv
, &priv
->rxq
);
4997 iwl4965_tx_queue_update_write_ptr(priv
, &priv
->txq
[0]);
4998 iwl4965_tx_queue_update_write_ptr(priv
, &priv
->txq
[1]);
4999 iwl4965_tx_queue_update_write_ptr(priv
, &priv
->txq
[2]);
5000 iwl4965_tx_queue_update_write_ptr(priv
, &priv
->txq
[3]);
5001 iwl4965_tx_queue_update_write_ptr(priv
, &priv
->txq
[4]);
5002 iwl4965_tx_queue_update_write_ptr(priv
, &priv
->txq
[5]);
5004 handled
|= CSR_INT_BIT_WAKEUP
;
5007 /* All uCode command responses, including Tx command responses,
5008 * Rx "responses" (frame-received notification), and other
5009 * notifications from uCode come through here*/
5010 if (inta
& (CSR_INT_BIT_FH_RX
| CSR_INT_BIT_SW_RX
)) {
5011 iwl4965_rx_handle(priv
);
5012 handled
|= (CSR_INT_BIT_FH_RX
| CSR_INT_BIT_SW_RX
);
5015 if (inta
& CSR_INT_BIT_FH_TX
) {
5016 IWL_DEBUG_ISR("Tx interrupt\n");
5017 handled
|= CSR_INT_BIT_FH_TX
;
5020 if (inta
& ~handled
)
5021 IWL_ERROR("Unhandled INTA bits 0x%08x\n", inta
& ~handled
);
5023 if (inta
& ~CSR_INI_SET_MASK
) {
5024 IWL_WARNING("Disabled INTA bits 0x%08x were pending\n",
5025 inta
& ~CSR_INI_SET_MASK
);
5026 IWL_WARNING(" with FH_INT = 0x%08x\n", inta_fh
);
5029 /* Re-enable all interrupts */
5030 iwl4965_enable_interrupts(priv
);
5032 #ifdef CONFIG_IWL4965_DEBUG
5033 if (iwl4965_debug_level
& (IWL_DL_ISR
)) {
5034 inta
= iwl4965_read32(priv
, CSR_INT
);
5035 inta_mask
= iwl4965_read32(priv
, CSR_INT_MASK
);
5036 inta_fh
= iwl4965_read32(priv
, CSR_FH_INT_STATUS
);
5037 IWL_DEBUG_ISR("End inta 0x%08x, enabled 0x%08x, fh 0x%08x, "
5038 "flags 0x%08lx\n", inta
, inta_mask
, inta_fh
, flags
);
5041 spin_unlock_irqrestore(&priv
->lock
, flags
);
5044 static irqreturn_t
iwl4965_isr(int irq
, void *data
)
5046 struct iwl4965_priv
*priv
= data
;
5047 u32 inta
, inta_mask
;
5052 spin_lock(&priv
->lock
);
5054 /* Disable (but don't clear!) interrupts here to avoid
5055 * back-to-back ISRs and sporadic interrupts from our NIC.
5056 * If we have something to service, the tasklet will re-enable ints.
5057 * If we *don't* have something, we'll re-enable before leaving here. */
5058 inta_mask
= iwl4965_read32(priv
, CSR_INT_MASK
); /* just for debug */
5059 iwl4965_write32(priv
, CSR_INT_MASK
, 0x00000000);
5061 /* Discover which interrupts are active/pending */
5062 inta
= iwl4965_read32(priv
, CSR_INT
);
5063 inta_fh
= iwl4965_read32(priv
, CSR_FH_INT_STATUS
);
5065 /* Ignore interrupt if there's nothing in NIC to service.
5066 * This may be due to IRQ shared with another device,
5067 * or due to sporadic interrupts thrown from our NIC. */
5068 if (!inta
&& !inta_fh
) {
5069 IWL_DEBUG_ISR("Ignore interrupt, inta == 0, inta_fh == 0\n");
5073 if ((inta
== 0xFFFFFFFF) || ((inta
& 0xFFFFFFF0) == 0xa5a5a5a0)) {
5074 /* Hardware disappeared. It might have already raised
5076 IWL_WARNING("HARDWARE GONE?? INTA == 0x%080x\n", inta
);
5080 IWL_DEBUG_ISR("ISR inta 0x%08x, enabled 0x%08x, fh 0x%08x\n",
5081 inta
, inta_mask
, inta_fh
);
5083 inta
&= ~CSR_INT_BIT_SCD
;
5085 /* iwl4965_irq_tasklet() will service interrupts and re-enable them */
5086 if (likely(inta
|| inta_fh
))
5087 tasklet_schedule(&priv
->irq_tasklet
);
5090 spin_unlock(&priv
->lock
);
5094 /* re-enable interrupts here since we don't have anything to service. */
5095 iwl4965_enable_interrupts(priv
);
5096 spin_unlock(&priv
->lock
);
5100 /************************** EEPROM BANDS ****************************
5102 * The iwl4965_eeprom_band definitions below provide the mapping from the
5103 * EEPROM contents to the specific channel number supported for each
5106 * For example, iwl4965_priv->eeprom.band_3_channels[4] from the band_3
5107 * definition below maps to physical channel 42 in the 5.2GHz spectrum.
5108 * The specific geography and calibration information for that channel
5109 * is contained in the eeprom map itself.
5111 * During init, we copy the eeprom information and channel map
5112 * information into priv->channel_info_24/52 and priv->channel_map_24/52
5114 * channel_map_24/52 provides the index in the channel_info array for a
5115 * given channel. We have to have two separate maps as there is channel
5116 * overlap with the 2.4GHz and 5.2GHz spectrum as seen in band_1 and
5119 * A value of 0xff stored in the channel_map indicates that the channel
5120 * is not supported by the hardware at all.
5122 * A value of 0xfe in the channel_map indicates that the channel is not
5123 * valid for Tx with the current hardware. This means that
5124 * while the system can tune and receive on a given channel, it may not
5125 * be able to associate or transmit any frames on that
5126 * channel. There is no corresponding channel information for that
5129 *********************************************************************/
5132 static const u8 iwl4965_eeprom_band_1
[14] = {
5133 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14
5137 static const u8 iwl4965_eeprom_band_2
[] = { /* 4915-5080MHz */
5138 183, 184, 185, 187, 188, 189, 192, 196, 7, 8, 11, 12, 16
5141 static const u8 iwl4965_eeprom_band_3
[] = { /* 5170-5320MHz */
5142 34, 36, 38, 40, 42, 44, 46, 48, 52, 56, 60, 64
5145 static const u8 iwl4965_eeprom_band_4
[] = { /* 5500-5700MHz */
5146 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140
5149 static const u8 iwl4965_eeprom_band_5
[] = { /* 5725-5825MHz */
5150 145, 149, 153, 157, 161, 165
5153 static u8 iwl4965_eeprom_band_6
[] = { /* 2.4 FAT channel */
5157 static u8 iwl4965_eeprom_band_7
[] = { /* 5.2 FAT channel */
5158 36, 44, 52, 60, 100, 108, 116, 124, 132, 149, 157
5161 static void iwl4965_init_band_reference(const struct iwl4965_priv
*priv
,
5163 int *eeprom_ch_count
,
5164 const struct iwl4965_eeprom_channel
5166 const u8
**eeprom_ch_index
)
5169 case 1: /* 2.4GHz band */
5170 *eeprom_ch_count
= ARRAY_SIZE(iwl4965_eeprom_band_1
);
5171 *eeprom_ch_info
= priv
->eeprom
.band_1_channels
;
5172 *eeprom_ch_index
= iwl4965_eeprom_band_1
;
5174 case 2: /* 4.9GHz band */
5175 *eeprom_ch_count
= ARRAY_SIZE(iwl4965_eeprom_band_2
);
5176 *eeprom_ch_info
= priv
->eeprom
.band_2_channels
;
5177 *eeprom_ch_index
= iwl4965_eeprom_band_2
;
5179 case 3: /* 5.2GHz band */
5180 *eeprom_ch_count
= ARRAY_SIZE(iwl4965_eeprom_band_3
);
5181 *eeprom_ch_info
= priv
->eeprom
.band_3_channels
;
5182 *eeprom_ch_index
= iwl4965_eeprom_band_3
;
5184 case 4: /* 5.5GHz band */
5185 *eeprom_ch_count
= ARRAY_SIZE(iwl4965_eeprom_band_4
);
5186 *eeprom_ch_info
= priv
->eeprom
.band_4_channels
;
5187 *eeprom_ch_index
= iwl4965_eeprom_band_4
;
5189 case 5: /* 5.7GHz band */
5190 *eeprom_ch_count
= ARRAY_SIZE(iwl4965_eeprom_band_5
);
5191 *eeprom_ch_info
= priv
->eeprom
.band_5_channels
;
5192 *eeprom_ch_index
= iwl4965_eeprom_band_5
;
5194 case 6: /* 2.4GHz FAT channels */
5195 *eeprom_ch_count
= ARRAY_SIZE(iwl4965_eeprom_band_6
);
5196 *eeprom_ch_info
= priv
->eeprom
.band_24_channels
;
5197 *eeprom_ch_index
= iwl4965_eeprom_band_6
;
5199 case 7: /* 5 GHz FAT channels */
5200 *eeprom_ch_count
= ARRAY_SIZE(iwl4965_eeprom_band_7
);
5201 *eeprom_ch_info
= priv
->eeprom
.band_52_channels
;
5202 *eeprom_ch_index
= iwl4965_eeprom_band_7
;
5211 * iwl4965_get_channel_info - Find driver's private channel info
5213 * Based on band and channel number.
5215 const struct iwl4965_channel_info
*iwl4965_get_channel_info(const struct iwl4965_priv
*priv
,
5216 enum ieee80211_band band
, u16 channel
)
5221 case IEEE80211_BAND_5GHZ
:
5222 for (i
= 14; i
< priv
->channel_count
; i
++) {
5223 if (priv
->channel_info
[i
].channel
== channel
)
5224 return &priv
->channel_info
[i
];
5227 case IEEE80211_BAND_2GHZ
:
5228 if (channel
>= 1 && channel
<= 14)
5229 return &priv
->channel_info
[channel
- 1];
5238 #define CHECK_AND_PRINT(x) ((eeprom_ch_info[ch].flags & EEPROM_CHANNEL_##x) \
5242 * iwl4965_init_channel_map - Set up driver's info for all possible channels
5244 static int iwl4965_init_channel_map(struct iwl4965_priv
*priv
)
5246 int eeprom_ch_count
= 0;
5247 const u8
*eeprom_ch_index
= NULL
;
5248 const struct iwl4965_eeprom_channel
*eeprom_ch_info
= NULL
;
5250 struct iwl4965_channel_info
*ch_info
;
5252 if (priv
->channel_count
) {
5253 IWL_DEBUG_INFO("Channel map already initialized.\n");
5257 if (priv
->eeprom
.version
< 0x2f) {
5258 IWL_WARNING("Unsupported EEPROM version: 0x%04X\n",
5259 priv
->eeprom
.version
);
5263 IWL_DEBUG_INFO("Initializing regulatory info from EEPROM\n");
5265 priv
->channel_count
=
5266 ARRAY_SIZE(iwl4965_eeprom_band_1
) +
5267 ARRAY_SIZE(iwl4965_eeprom_band_2
) +
5268 ARRAY_SIZE(iwl4965_eeprom_band_3
) +
5269 ARRAY_SIZE(iwl4965_eeprom_band_4
) +
5270 ARRAY_SIZE(iwl4965_eeprom_band_5
);
5272 IWL_DEBUG_INFO("Parsing data for %d channels.\n", priv
->channel_count
);
5274 priv
->channel_info
= kzalloc(sizeof(struct iwl4965_channel_info
) *
5275 priv
->channel_count
, GFP_KERNEL
);
5276 if (!priv
->channel_info
) {
5277 IWL_ERROR("Could not allocate channel_info\n");
5278 priv
->channel_count
= 0;
5282 ch_info
= priv
->channel_info
;
5284 /* Loop through the 5 EEPROM bands adding them in order to the
5285 * channel map we maintain (that contains additional information than
5286 * what just in the EEPROM) */
5287 for (band
= 1; band
<= 5; band
++) {
5289 iwl4965_init_band_reference(priv
, band
, &eeprom_ch_count
,
5290 &eeprom_ch_info
, &eeprom_ch_index
);
5292 /* Loop through each band adding each of the channels */
5293 for (ch
= 0; ch
< eeprom_ch_count
; ch
++) {
5294 ch_info
->channel
= eeprom_ch_index
[ch
];
5295 ch_info
->band
= (band
== 1) ? IEEE80211_BAND_2GHZ
:
5296 IEEE80211_BAND_5GHZ
;
5298 /* permanently store EEPROM's channel regulatory flags
5299 * and max power in channel info database. */
5300 ch_info
->eeprom
= eeprom_ch_info
[ch
];
5302 /* Copy the run-time flags so they are there even on
5303 * invalid channels */
5304 ch_info
->flags
= eeprom_ch_info
[ch
].flags
;
5306 if (!(is_channel_valid(ch_info
))) {
5307 IWL_DEBUG_INFO("Ch. %d Flags %x [%sGHz] - "
5311 is_channel_a_band(ch_info
) ?
5317 /* Initialize regulatory-based run-time data */
5318 ch_info
->max_power_avg
= ch_info
->curr_txpow
=
5319 eeprom_ch_info
[ch
].max_power_avg
;
5320 ch_info
->scan_power
= eeprom_ch_info
[ch
].max_power_avg
;
5321 ch_info
->min_power
= 0;
5323 IWL_DEBUG_INFO("Ch. %d [%sGHz] %s%s%s%s%s%s%s(0x%02x"
5324 " %ddBm): Ad-Hoc %ssupported\n",
5326 is_channel_a_band(ch_info
) ?
5328 CHECK_AND_PRINT(VALID
),
5329 CHECK_AND_PRINT(IBSS
),
5330 CHECK_AND_PRINT(ACTIVE
),
5331 CHECK_AND_PRINT(RADAR
),
5332 CHECK_AND_PRINT(WIDE
),
5333 CHECK_AND_PRINT(NARROW
),
5334 CHECK_AND_PRINT(DFS
),
5335 eeprom_ch_info
[ch
].flags
,
5336 eeprom_ch_info
[ch
].max_power_avg
,
5337 ((eeprom_ch_info
[ch
].
5338 flags
& EEPROM_CHANNEL_IBSS
)
5339 && !(eeprom_ch_info
[ch
].
5340 flags
& EEPROM_CHANNEL_RADAR
))
5343 /* Set the user_txpower_limit to the highest power
5344 * supported by any channel */
5345 if (eeprom_ch_info
[ch
].max_power_avg
>
5346 priv
->user_txpower_limit
)
5347 priv
->user_txpower_limit
=
5348 eeprom_ch_info
[ch
].max_power_avg
;
5354 /* Two additional EEPROM bands for 2.4 and 5 GHz FAT channels */
5355 for (band
= 6; band
<= 7; band
++) {
5356 enum ieee80211_band ieeeband
;
5357 u8 fat_extension_chan
;
5359 iwl4965_init_band_reference(priv
, band
, &eeprom_ch_count
,
5360 &eeprom_ch_info
, &eeprom_ch_index
);
5362 /* EEPROM band 6 is 2.4, band 7 is 5 GHz */
5363 ieeeband
= (band
== 6) ? IEEE80211_BAND_2GHZ
: IEEE80211_BAND_5GHZ
;
5365 /* Loop through each band adding each of the channels */
5366 for (ch
= 0; ch
< eeprom_ch_count
; ch
++) {
5369 ((eeprom_ch_index
[ch
] == 5) ||
5370 (eeprom_ch_index
[ch
] == 6) ||
5371 (eeprom_ch_index
[ch
] == 7)))
5372 fat_extension_chan
= HT_IE_EXT_CHANNEL_MAX
;
5374 fat_extension_chan
= HT_IE_EXT_CHANNEL_ABOVE
;
5376 /* Set up driver's info for lower half */
5377 iwl4965_set_fat_chan_info(priv
, ieeeband
,
5378 eeprom_ch_index
[ch
],
5379 &(eeprom_ch_info
[ch
]),
5380 fat_extension_chan
);
5382 /* Set up driver's info for upper half */
5383 iwl4965_set_fat_chan_info(priv
, ieeeband
,
5384 (eeprom_ch_index
[ch
] + 4),
5385 &(eeprom_ch_info
[ch
]),
5386 HT_IE_EXT_CHANNEL_BELOW
);
5394 * iwl4965_free_channel_map - undo allocations in iwl4965_init_channel_map
5396 static void iwl4965_free_channel_map(struct iwl4965_priv
*priv
)
5398 kfree(priv
->channel_info
);
5399 priv
->channel_count
= 0;
5402 /* For active scan, listen ACTIVE_DWELL_TIME (msec) on each channel after
5403 * sending probe req. This should be set long enough to hear probe responses
5404 * from more than one AP. */
5405 #define IWL_ACTIVE_DWELL_TIME_24 (20) /* all times in msec */
5406 #define IWL_ACTIVE_DWELL_TIME_52 (10)
5408 /* For faster active scanning, scan will move to the next channel if fewer than
5409 * PLCP_QUIET_THRESH packets are heard on this channel within
5410 * ACTIVE_QUIET_TIME after sending probe request. This shortens the dwell
5411 * time if it's a quiet channel (nothing responded to our probe, and there's
5412 * no other traffic).
5413 * Disable "quiet" feature by setting PLCP_QUIET_THRESH to 0. */
5414 #define IWL_PLCP_QUIET_THRESH __constant_cpu_to_le16(1) /* packets */
5415 #define IWL_ACTIVE_QUIET_TIME __constant_cpu_to_le16(5) /* msec */
5417 /* For passive scan, listen PASSIVE_DWELL_TIME (msec) on each channel.
5418 * Must be set longer than active dwell time.
5419 * For the most reliable scan, set > AP beacon interval (typically 100msec). */
5420 #define IWL_PASSIVE_DWELL_TIME_24 (20) /* all times in msec */
5421 #define IWL_PASSIVE_DWELL_TIME_52 (10)
5422 #define IWL_PASSIVE_DWELL_BASE (100)
5423 #define IWL_CHANNEL_TUNE_TIME 5
5425 static inline u16
iwl4965_get_active_dwell_time(struct iwl4965_priv
*priv
,
5426 enum ieee80211_band band
)
5428 if (band
== IEEE80211_BAND_5GHZ
)
5429 return IWL_ACTIVE_DWELL_TIME_52
;
5431 return IWL_ACTIVE_DWELL_TIME_24
;
5434 static u16
iwl4965_get_passive_dwell_time(struct iwl4965_priv
*priv
,
5435 enum ieee80211_band band
)
5437 u16 active
= iwl4965_get_active_dwell_time(priv
, band
);
5438 u16 passive
= (band
!= IEEE80211_BAND_5GHZ
) ?
5439 IWL_PASSIVE_DWELL_BASE
+ IWL_PASSIVE_DWELL_TIME_24
:
5440 IWL_PASSIVE_DWELL_BASE
+ IWL_PASSIVE_DWELL_TIME_52
;
5442 if (iwl4965_is_associated(priv
)) {
5443 /* If we're associated, we clamp the maximum passive
5444 * dwell time to be 98% of the beacon interval (minus
5445 * 2 * channel tune time) */
5446 passive
= priv
->beacon_int
;
5447 if ((passive
> IWL_PASSIVE_DWELL_BASE
) || !passive
)
5448 passive
= IWL_PASSIVE_DWELL_BASE
;
5449 passive
= (passive
* 98) / 100 - IWL_CHANNEL_TUNE_TIME
* 2;
5452 if (passive
<= active
)
5453 passive
= active
+ 1;
5458 static int iwl4965_get_channels_for_scan(struct iwl4965_priv
*priv
,
5459 enum ieee80211_band band
,
5460 u8 is_active
, u8 direct_mask
,
5461 struct iwl4965_scan_channel
*scan_ch
)
5463 const struct ieee80211_channel
*channels
= NULL
;
5464 const struct ieee80211_supported_band
*sband
;
5465 const struct iwl4965_channel_info
*ch_info
;
5466 u16 passive_dwell
= 0;
5467 u16 active_dwell
= 0;
5470 sband
= iwl4965_get_hw_mode(priv
, band
);
5474 channels
= sband
->channels
;
5476 active_dwell
= iwl4965_get_active_dwell_time(priv
, band
);
5477 passive_dwell
= iwl4965_get_passive_dwell_time(priv
, band
);
5479 for (i
= 0, added
= 0; i
< sband
->n_channels
; i
++) {
5480 if (ieee80211_frequency_to_channel(channels
[i
].center_freq
) ==
5481 le16_to_cpu(priv
->active_rxon
.channel
)) {
5482 if (iwl4965_is_associated(priv
)) {
5484 ("Skipping current channel %d\n",
5485 le16_to_cpu(priv
->active_rxon
.channel
));
5488 } else if (priv
->only_active_channel
)
5491 scan_ch
->channel
= ieee80211_frequency_to_channel(channels
[i
].center_freq
);
5493 ch_info
= iwl4965_get_channel_info(priv
, band
,
5495 if (!is_channel_valid(ch_info
)) {
5496 IWL_DEBUG_SCAN("Channel %d is INVALID for this SKU.\n",
5501 if (!is_active
|| is_channel_passive(ch_info
) ||
5502 (channels
[i
].flags
& IEEE80211_CHAN_PASSIVE_SCAN
))
5503 scan_ch
->type
= 0; /* passive */
5505 scan_ch
->type
= 1; /* active */
5507 if (scan_ch
->type
& 1)
5508 scan_ch
->type
|= (direct_mask
<< 1);
5510 if (is_channel_narrow(ch_info
))
5511 scan_ch
->type
|= (1 << 7);
5513 scan_ch
->active_dwell
= cpu_to_le16(active_dwell
);
5514 scan_ch
->passive_dwell
= cpu_to_le16(passive_dwell
);
5516 /* Set txpower levels to defaults */
5517 scan_ch
->tpc
.dsp_atten
= 110;
5518 /* scan_pwr_info->tpc.dsp_atten; */
5520 /*scan_pwr_info->tpc.tx_gain; */
5521 if (band
== IEEE80211_BAND_5GHZ
)
5522 scan_ch
->tpc
.tx_gain
= ((1 << 5) | (3 << 3)) | 3;
5524 scan_ch
->tpc
.tx_gain
= ((1 << 5) | (5 << 3));
5525 /* NOTE: if we were doing 6Mb OFDM for scans we'd use
5527 * scan_ch->tpc.tx_gain = ((1 << 5) | (2 << 3)) | 3;
5531 IWL_DEBUG_SCAN("Scanning %d [%s %d]\n",
5533 (scan_ch
->type
& 1) ? "ACTIVE" : "PASSIVE",
5534 (scan_ch
->type
& 1) ?
5535 active_dwell
: passive_dwell
);
5541 IWL_DEBUG_SCAN("total channels to scan %d \n", added
);
5545 static void iwl4965_init_hw_rates(struct iwl4965_priv
*priv
,
5546 struct ieee80211_rate
*rates
)
5550 for (i
= 0; i
< IWL_RATE_COUNT
; i
++) {
5551 rates
[i
].bitrate
= iwl4965_rates
[i
].ieee
* 5;
5552 rates
[i
].hw_value
= i
; /* Rate scaling will work on indexes */
5553 rates
[i
].hw_value_short
= i
;
5555 if ((i
> IWL_LAST_OFDM_RATE
) || (i
< IWL_FIRST_OFDM_RATE
)) {
5557 * If CCK != 1M then set short preamble rate flag.
5559 rates
[i
].flags
|= (iwl4965_rates
[i
].plcp
== 10) ?
5560 0 : IEEE80211_RATE_SHORT_PREAMBLE
;
5566 * iwl4965_init_geos - Initialize mac80211's geo/channel info based from eeprom
5568 static int iwl4965_init_geos(struct iwl4965_priv
*priv
)
5570 struct iwl4965_channel_info
*ch
;
5571 struct ieee80211_supported_band
*sband
;
5572 struct ieee80211_channel
*channels
;
5573 struct ieee80211_channel
*geo_ch
;
5574 struct ieee80211_rate
*rates
;
5577 if (priv
->bands
[IEEE80211_BAND_2GHZ
].n_bitrates
||
5578 priv
->bands
[IEEE80211_BAND_5GHZ
].n_bitrates
) {
5579 IWL_DEBUG_INFO("Geography modes already initialized.\n");
5580 set_bit(STATUS_GEO_CONFIGURED
, &priv
->status
);
5584 channels
= kzalloc(sizeof(struct ieee80211_channel
) *
5585 priv
->channel_count
, GFP_KERNEL
);
5589 rates
= kzalloc((sizeof(struct ieee80211_rate
) * (IWL_RATE_COUNT
+ 1)),
5596 /* 5.2GHz channels start after the 2.4GHz channels */
5597 sband
= &priv
->bands
[IEEE80211_BAND_5GHZ
];
5598 sband
->channels
= &channels
[ARRAY_SIZE(iwl4965_eeprom_band_1
)];
5600 sband
->bitrates
= &rates
[IWL_FIRST_OFDM_RATE
];
5601 sband
->n_bitrates
= IWL_RATE_COUNT
- IWL_FIRST_OFDM_RATE
;
5603 iwl4965_init_ht_hw_capab(&sband
->ht_info
, IEEE80211_BAND_5GHZ
);
5605 sband
= &priv
->bands
[IEEE80211_BAND_2GHZ
];
5606 sband
->channels
= channels
;
5608 sband
->bitrates
= rates
;
5609 sband
->n_bitrates
= IWL_RATE_COUNT
;
5611 iwl4965_init_ht_hw_capab(&sband
->ht_info
, IEEE80211_BAND_2GHZ
);
5613 priv
->ieee_channels
= channels
;
5614 priv
->ieee_rates
= rates
;
5616 iwl4965_init_hw_rates(priv
, rates
);
5618 for (i
= 0; i
< priv
->channel_count
; i
++) {
5619 ch
= &priv
->channel_info
[i
];
5621 /* FIXME: might be removed if scan is OK */
5622 if (!is_channel_valid(ch
))
5625 if (is_channel_a_band(ch
))
5626 sband
= &priv
->bands
[IEEE80211_BAND_5GHZ
];
5628 sband
= &priv
->bands
[IEEE80211_BAND_2GHZ
];
5630 geo_ch
= &sband
->channels
[sband
->n_channels
++];
5632 geo_ch
->center_freq
= ieee80211_channel_to_frequency(ch
->channel
);
5633 geo_ch
->max_power
= ch
->max_power_avg
;
5634 geo_ch
->max_antenna_gain
= 0xff;
5635 geo_ch
->hw_value
= ch
->channel
;
5637 if (is_channel_valid(ch
)) {
5638 if (!(ch
->flags
& EEPROM_CHANNEL_IBSS
))
5639 geo_ch
->flags
|= IEEE80211_CHAN_NO_IBSS
;
5641 if (!(ch
->flags
& EEPROM_CHANNEL_ACTIVE
))
5642 geo_ch
->flags
|= IEEE80211_CHAN_PASSIVE_SCAN
;
5644 if (ch
->flags
& EEPROM_CHANNEL_RADAR
)
5645 geo_ch
->flags
|= IEEE80211_CHAN_RADAR
;
5647 if (ch
->max_power_avg
> priv
->max_channel_txpower_limit
)
5648 priv
->max_channel_txpower_limit
=
5651 geo_ch
->flags
|= IEEE80211_CHAN_DISABLED
;
5654 /* Save flags for reg domain usage */
5655 geo_ch
->orig_flags
= geo_ch
->flags
;
5657 IWL_DEBUG_INFO("Channel %d Freq=%d[%sGHz] %s flag=0%X\n",
5658 ch
->channel
, geo_ch
->center_freq
,
5659 is_channel_a_band(ch
) ? "5.2" : "2.4",
5660 geo_ch
->flags
& IEEE80211_CHAN_DISABLED
?
5661 "restricted" : "valid",
5665 if ((priv
->bands
[IEEE80211_BAND_5GHZ
].n_channels
== 0) && priv
->is_abg
) {
5666 printk(KERN_INFO DRV_NAME
5667 ": Incorrectly detected BG card as ABG. Please send "
5668 "your PCI ID 0x%04X:0x%04X to maintainer.\n",
5669 priv
->pci_dev
->device
, priv
->pci_dev
->subsystem_device
);
5673 printk(KERN_INFO DRV_NAME
5674 ": Tunable channels: %d 802.11bg, %d 802.11a channels\n",
5675 priv
->bands
[IEEE80211_BAND_2GHZ
].n_channels
,
5676 priv
->bands
[IEEE80211_BAND_5GHZ
].n_channels
);
5678 priv
->hw
->wiphy
->bands
[IEEE80211_BAND_2GHZ
] = &priv
->bands
[IEEE80211_BAND_2GHZ
];
5679 priv
->hw
->wiphy
->bands
[IEEE80211_BAND_5GHZ
] = &priv
->bands
[IEEE80211_BAND_5GHZ
];
5681 set_bit(STATUS_GEO_CONFIGURED
, &priv
->status
);
5687 * iwl4965_free_geos - undo allocations in iwl4965_init_geos
5689 static void iwl4965_free_geos(struct iwl4965_priv
*priv
)
5691 kfree(priv
->ieee_channels
);
5692 kfree(priv
->ieee_rates
);
5693 clear_bit(STATUS_GEO_CONFIGURED
, &priv
->status
);
5696 /******************************************************************************
5698 * uCode download functions
5700 ******************************************************************************/
5702 static void iwl4965_dealloc_ucode_pci(struct iwl4965_priv
*priv
)
5704 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_code
);
5705 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_data
);
5706 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_data_backup
);
5707 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_init
);
5708 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_init_data
);
5709 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_boot
);
5713 * iwl4965_verify_inst_full - verify runtime uCode image in card vs. host,
5714 * looking at all data.
5716 static int iwl4965_verify_inst_full(struct iwl4965_priv
*priv
, __le32
*image
,
5724 IWL_DEBUG_INFO("ucode inst image size is %u\n", len
);
5726 rc
= iwl4965_grab_nic_access(priv
);
5730 iwl4965_write_direct32(priv
, HBUS_TARG_MEM_RADDR
, RTC_INST_LOWER_BOUND
);
5733 for (; len
> 0; len
-= sizeof(u32
), image
++) {
5734 /* read data comes through single port, auto-incr addr */
5735 /* NOTE: Use the debugless read so we don't flood kernel log
5736 * if IWL_DL_IO is set */
5737 val
= _iwl4965_read_direct32(priv
, HBUS_TARG_MEM_RDAT
);
5738 if (val
!= le32_to_cpu(*image
)) {
5739 IWL_ERROR("uCode INST section is invalid at "
5740 "offset 0x%x, is 0x%x, s/b 0x%x\n",
5741 save_len
- len
, val
, le32_to_cpu(*image
));
5749 iwl4965_release_nic_access(priv
);
5753 ("ucode image in INSTRUCTION memory is good\n");
5760 * iwl4965_verify_inst_sparse - verify runtime uCode image in card vs. host,
5761 * using sample data 100 bytes apart. If these sample points are good,
5762 * it's a pretty good bet that everything between them is good, too.
5764 static int iwl4965_verify_inst_sparse(struct iwl4965_priv
*priv
, __le32
*image
, u32 len
)
5771 IWL_DEBUG_INFO("ucode inst image size is %u\n", len
);
5773 rc
= iwl4965_grab_nic_access(priv
);
5777 for (i
= 0; i
< len
; i
+= 100, image
+= 100/sizeof(u32
)) {
5778 /* read data comes through single port, auto-incr addr */
5779 /* NOTE: Use the debugless read so we don't flood kernel log
5780 * if IWL_DL_IO is set */
5781 iwl4965_write_direct32(priv
, HBUS_TARG_MEM_RADDR
,
5782 i
+ RTC_INST_LOWER_BOUND
);
5783 val
= _iwl4965_read_direct32(priv
, HBUS_TARG_MEM_RDAT
);
5784 if (val
!= le32_to_cpu(*image
)) {
5785 #if 0 /* Enable this if you want to see details */
5786 IWL_ERROR("uCode INST section is invalid at "
5787 "offset 0x%x, is 0x%x, s/b 0x%x\n",
5797 iwl4965_release_nic_access(priv
);
5804 * iwl4965_verify_ucode - determine which instruction image is in SRAM,
5805 * and verify its contents
5807 static int iwl4965_verify_ucode(struct iwl4965_priv
*priv
)
5814 image
= (__le32
*)priv
->ucode_boot
.v_addr
;
5815 len
= priv
->ucode_boot
.len
;
5816 rc
= iwl4965_verify_inst_sparse(priv
, image
, len
);
5818 IWL_DEBUG_INFO("Bootstrap uCode is good in inst SRAM\n");
5822 /* Try initialize */
5823 image
= (__le32
*)priv
->ucode_init
.v_addr
;
5824 len
= priv
->ucode_init
.len
;
5825 rc
= iwl4965_verify_inst_sparse(priv
, image
, len
);
5827 IWL_DEBUG_INFO("Initialize uCode is good in inst SRAM\n");
5831 /* Try runtime/protocol */
5832 image
= (__le32
*)priv
->ucode_code
.v_addr
;
5833 len
= priv
->ucode_code
.len
;
5834 rc
= iwl4965_verify_inst_sparse(priv
, image
, len
);
5836 IWL_DEBUG_INFO("Runtime uCode is good in inst SRAM\n");
5840 IWL_ERROR("NO VALID UCODE IMAGE IN INSTRUCTION SRAM!!\n");
5842 /* Since nothing seems to match, show first several data entries in
5843 * instruction SRAM, so maybe visual inspection will give a clue.
5844 * Selection of bootstrap image (vs. other images) is arbitrary. */
5845 image
= (__le32
*)priv
->ucode_boot
.v_addr
;
5846 len
= priv
->ucode_boot
.len
;
5847 rc
= iwl4965_verify_inst_full(priv
, image
, len
);
5853 /* check contents of special bootstrap uCode SRAM */
5854 static int iwl4965_verify_bsm(struct iwl4965_priv
*priv
)
5856 __le32
*image
= priv
->ucode_boot
.v_addr
;
5857 u32 len
= priv
->ucode_boot
.len
;
5861 IWL_DEBUG_INFO("Begin verify bsm\n");
5863 /* verify BSM SRAM contents */
5864 val
= iwl4965_read_prph(priv
, BSM_WR_DWCOUNT_REG
);
5865 for (reg
= BSM_SRAM_LOWER_BOUND
;
5866 reg
< BSM_SRAM_LOWER_BOUND
+ len
;
5867 reg
+= sizeof(u32
), image
++) {
5868 val
= iwl4965_read_prph(priv
, reg
);
5869 if (val
!= le32_to_cpu(*image
)) {
5870 IWL_ERROR("BSM uCode verification failed at "
5871 "addr 0x%08X+%u (of %u), is 0x%x, s/b 0x%x\n",
5872 BSM_SRAM_LOWER_BOUND
,
5873 reg
- BSM_SRAM_LOWER_BOUND
, len
,
5874 val
, le32_to_cpu(*image
));
5879 IWL_DEBUG_INFO("BSM bootstrap uCode image OK\n");
5885 * iwl4965_load_bsm - Load bootstrap instructions
5889 * The Bootstrap State Machine (BSM) stores a short bootstrap uCode program
5890 * in special SRAM that does not power down during RFKILL. When powering back
5891 * up after power-saving sleeps (or during initial uCode load), the BSM loads
5892 * the bootstrap program into the on-board processor, and starts it.
5894 * The bootstrap program loads (via DMA) instructions and data for a new
5895 * program from host DRAM locations indicated by the host driver in the
5896 * BSM_DRAM_* registers. Once the new program is loaded, it starts
5899 * When initializing the NIC, the host driver points the BSM to the
5900 * "initialize" uCode image. This uCode sets up some internal data, then
5901 * notifies host via "initialize alive" that it is complete.
5903 * The host then replaces the BSM_DRAM_* pointer values to point to the
5904 * normal runtime uCode instructions and a backup uCode data cache buffer
5905 * (filled initially with starting data values for the on-board processor),
5906 * then triggers the "initialize" uCode to load and launch the runtime uCode,
5907 * which begins normal operation.
5909 * When doing a power-save shutdown, runtime uCode saves data SRAM into
5910 * the backup data cache in DRAM before SRAM is powered down.
5912 * When powering back up, the BSM loads the bootstrap program. This reloads
5913 * the runtime uCode instructions and the backup data cache into SRAM,
5914 * and re-launches the runtime uCode from where it left off.
5916 static int iwl4965_load_bsm(struct iwl4965_priv
*priv
)
5918 __le32
*image
= priv
->ucode_boot
.v_addr
;
5919 u32 len
= priv
->ucode_boot
.len
;
5929 IWL_DEBUG_INFO("Begin load bsm\n");
5931 /* make sure bootstrap program is no larger than BSM's SRAM size */
5932 if (len
> IWL_MAX_BSM_SIZE
)
5935 /* Tell bootstrap uCode where to find the "Initialize" uCode
5936 * in host DRAM ... host DRAM physical address bits 35:4 for 4965.
5937 * NOTE: iwl4965_initialize_alive_start() will replace these values,
5938 * after the "initialize" uCode has run, to point to
5939 * runtime/protocol instructions and backup data cache. */
5940 pinst
= priv
->ucode_init
.p_addr
>> 4;
5941 pdata
= priv
->ucode_init_data
.p_addr
>> 4;
5942 inst_len
= priv
->ucode_init
.len
;
5943 data_len
= priv
->ucode_init_data
.len
;
5945 rc
= iwl4965_grab_nic_access(priv
);
5949 iwl4965_write_prph(priv
, BSM_DRAM_INST_PTR_REG
, pinst
);
5950 iwl4965_write_prph(priv
, BSM_DRAM_DATA_PTR_REG
, pdata
);
5951 iwl4965_write_prph(priv
, BSM_DRAM_INST_BYTECOUNT_REG
, inst_len
);
5952 iwl4965_write_prph(priv
, BSM_DRAM_DATA_BYTECOUNT_REG
, data_len
);
5954 /* Fill BSM memory with bootstrap instructions */
5955 for (reg_offset
= BSM_SRAM_LOWER_BOUND
;
5956 reg_offset
< BSM_SRAM_LOWER_BOUND
+ len
;
5957 reg_offset
+= sizeof(u32
), image
++)
5958 _iwl4965_write_prph(priv
, reg_offset
,
5959 le32_to_cpu(*image
));
5961 rc
= iwl4965_verify_bsm(priv
);
5963 iwl4965_release_nic_access(priv
);
5967 /* Tell BSM to copy from BSM SRAM into instruction SRAM, when asked */
5968 iwl4965_write_prph(priv
, BSM_WR_MEM_SRC_REG
, 0x0);
5969 iwl4965_write_prph(priv
, BSM_WR_MEM_DST_REG
,
5970 RTC_INST_LOWER_BOUND
);
5971 iwl4965_write_prph(priv
, BSM_WR_DWCOUNT_REG
, len
/ sizeof(u32
));
5973 /* Load bootstrap code into instruction SRAM now,
5974 * to prepare to load "initialize" uCode */
5975 iwl4965_write_prph(priv
, BSM_WR_CTRL_REG
,
5976 BSM_WR_CTRL_REG_BIT_START
);
5978 /* Wait for load of bootstrap uCode to finish */
5979 for (i
= 0; i
< 100; i
++) {
5980 done
= iwl4965_read_prph(priv
, BSM_WR_CTRL_REG
);
5981 if (!(done
& BSM_WR_CTRL_REG_BIT_START
))
5986 IWL_DEBUG_INFO("BSM write complete, poll %d iterations\n", i
);
5988 IWL_ERROR("BSM write did not complete!\n");
5992 /* Enable future boot loads whenever power management unit triggers it
5993 * (e.g. when powering back up after power-save shutdown) */
5994 iwl4965_write_prph(priv
, BSM_WR_CTRL_REG
,
5995 BSM_WR_CTRL_REG_BIT_START_EN
);
5997 iwl4965_release_nic_access(priv
);
6002 static void iwl4965_nic_start(struct iwl4965_priv
*priv
)
6004 /* Remove all resets to allow NIC to operate */
6005 iwl4965_write32(priv
, CSR_RESET
, 0);
6010 * iwl4965_read_ucode - Read uCode images from disk file.
6012 * Copy into buffers for card to fetch via bus-mastering
6014 static int iwl4965_read_ucode(struct iwl4965_priv
*priv
)
6016 struct iwl4965_ucode
*ucode
;
6018 const struct firmware
*ucode_raw
;
6019 const char *name
= "iwlwifi-4965" IWL4965_UCODE_API
".ucode";
6022 u32 ver
, inst_size
, data_size
, init_size
, init_data_size
, boot_size
;
6024 /* Ask kernel firmware_class module to get the boot firmware off disk.
6025 * request_firmware() is synchronous, file is in memory on return. */
6026 ret
= request_firmware(&ucode_raw
, name
, &priv
->pci_dev
->dev
);
6028 IWL_ERROR("%s firmware file req failed: Reason %d\n",
6033 IWL_DEBUG_INFO("Got firmware '%s' file (%zd bytes) from disk\n",
6034 name
, ucode_raw
->size
);
6036 /* Make sure that we got at least our header! */
6037 if (ucode_raw
->size
< sizeof(*ucode
)) {
6038 IWL_ERROR("File size way too small!\n");
6043 /* Data from ucode file: header followed by uCode images */
6044 ucode
= (void *)ucode_raw
->data
;
6046 ver
= le32_to_cpu(ucode
->ver
);
6047 inst_size
= le32_to_cpu(ucode
->inst_size
);
6048 data_size
= le32_to_cpu(ucode
->data_size
);
6049 init_size
= le32_to_cpu(ucode
->init_size
);
6050 init_data_size
= le32_to_cpu(ucode
->init_data_size
);
6051 boot_size
= le32_to_cpu(ucode
->boot_size
);
6053 IWL_DEBUG_INFO("f/w package hdr ucode version = 0x%x\n", ver
);
6054 IWL_DEBUG_INFO("f/w package hdr runtime inst size = %u\n",
6056 IWL_DEBUG_INFO("f/w package hdr runtime data size = %u\n",
6058 IWL_DEBUG_INFO("f/w package hdr init inst size = %u\n",
6060 IWL_DEBUG_INFO("f/w package hdr init data size = %u\n",
6062 IWL_DEBUG_INFO("f/w package hdr boot inst size = %u\n",
6065 /* Verify size of file vs. image size info in file's header */
6066 if (ucode_raw
->size
< sizeof(*ucode
) +
6067 inst_size
+ data_size
+ init_size
+
6068 init_data_size
+ boot_size
) {
6070 IWL_DEBUG_INFO("uCode file size %d too small\n",
6071 (int)ucode_raw
->size
);
6076 /* Verify that uCode images will fit in card's SRAM */
6077 if (inst_size
> IWL_MAX_INST_SIZE
) {
6078 IWL_DEBUG_INFO("uCode instr len %d too large to fit in\n",
6084 if (data_size
> IWL_MAX_DATA_SIZE
) {
6085 IWL_DEBUG_INFO("uCode data len %d too large to fit in\n",
6090 if (init_size
> IWL_MAX_INST_SIZE
) {
6092 ("uCode init instr len %d too large to fit in\n",
6097 if (init_data_size
> IWL_MAX_DATA_SIZE
) {
6099 ("uCode init data len %d too large to fit in\n",
6104 if (boot_size
> IWL_MAX_BSM_SIZE
) {
6106 ("uCode boot instr len %d too large to fit in\n",
6112 /* Allocate ucode buffers for card's bus-master loading ... */
6114 /* Runtime instructions and 2 copies of data:
6115 * 1) unmodified from disk
6116 * 2) backup cache for save/restore during power-downs */
6117 priv
->ucode_code
.len
= inst_size
;
6118 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_code
);
6120 priv
->ucode_data
.len
= data_size
;
6121 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_data
);
6123 priv
->ucode_data_backup
.len
= data_size
;
6124 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_data_backup
);
6126 /* Initialization instructions and data */
6127 if (init_size
&& init_data_size
) {
6128 priv
->ucode_init
.len
= init_size
;
6129 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_init
);
6131 priv
->ucode_init_data
.len
= init_data_size
;
6132 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_init_data
);
6134 if (!priv
->ucode_init
.v_addr
|| !priv
->ucode_init_data
.v_addr
)
6138 /* Bootstrap (instructions only, no data) */
6140 priv
->ucode_boot
.len
= boot_size
;
6141 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_boot
);
6143 if (!priv
->ucode_boot
.v_addr
)
6147 /* Copy images into buffers for card's bus-master reads ... */
6149 /* Runtime instructions (first block of data in file) */
6150 src
= &ucode
->data
[0];
6151 len
= priv
->ucode_code
.len
;
6152 IWL_DEBUG_INFO("Copying (but not loading) uCode instr len %Zd\n", len
);
6153 memcpy(priv
->ucode_code
.v_addr
, src
, len
);
6154 IWL_DEBUG_INFO("uCode instr buf vaddr = 0x%p, paddr = 0x%08x\n",
6155 priv
->ucode_code
.v_addr
, (u32
)priv
->ucode_code
.p_addr
);
6157 /* Runtime data (2nd block)
6158 * NOTE: Copy into backup buffer will be done in iwl4965_up() */
6159 src
= &ucode
->data
[inst_size
];
6160 len
= priv
->ucode_data
.len
;
6161 IWL_DEBUG_INFO("Copying (but not loading) uCode data len %Zd\n", len
);
6162 memcpy(priv
->ucode_data
.v_addr
, src
, len
);
6163 memcpy(priv
->ucode_data_backup
.v_addr
, src
, len
);
6165 /* Initialization instructions (3rd block) */
6167 src
= &ucode
->data
[inst_size
+ data_size
];
6168 len
= priv
->ucode_init
.len
;
6169 IWL_DEBUG_INFO("Copying (but not loading) init instr len %Zd\n",
6171 memcpy(priv
->ucode_init
.v_addr
, src
, len
);
6174 /* Initialization data (4th block) */
6175 if (init_data_size
) {
6176 src
= &ucode
->data
[inst_size
+ data_size
+ init_size
];
6177 len
= priv
->ucode_init_data
.len
;
6178 IWL_DEBUG_INFO("Copying (but not loading) init data len %Zd\n",
6180 memcpy(priv
->ucode_init_data
.v_addr
, src
, len
);
6183 /* Bootstrap instructions (5th block) */
6184 src
= &ucode
->data
[inst_size
+ data_size
+ init_size
+ init_data_size
];
6185 len
= priv
->ucode_boot
.len
;
6186 IWL_DEBUG_INFO("Copying (but not loading) boot instr len %Zd\n", len
);
6187 memcpy(priv
->ucode_boot
.v_addr
, src
, len
);
6189 /* We have our copies now, allow OS release its copies */
6190 release_firmware(ucode_raw
);
6194 IWL_ERROR("failed to allocate pci memory\n");
6196 iwl4965_dealloc_ucode_pci(priv
);
6199 release_firmware(ucode_raw
);
6207 * iwl4965_set_ucode_ptrs - Set uCode address location
6209 * Tell initialization uCode where to find runtime uCode.
6211 * BSM registers initially contain pointers to initialization uCode.
6212 * We need to replace them to load runtime uCode inst and data,
6213 * and to save runtime data when powering down.
6215 static int iwl4965_set_ucode_ptrs(struct iwl4965_priv
*priv
)
6220 unsigned long flags
;
6222 /* bits 35:4 for 4965 */
6223 pinst
= priv
->ucode_code
.p_addr
>> 4;
6224 pdata
= priv
->ucode_data_backup
.p_addr
>> 4;
6226 spin_lock_irqsave(&priv
->lock
, flags
);
6227 rc
= iwl4965_grab_nic_access(priv
);
6229 spin_unlock_irqrestore(&priv
->lock
, flags
);
6233 /* Tell bootstrap uCode where to find image to load */
6234 iwl4965_write_prph(priv
, BSM_DRAM_INST_PTR_REG
, pinst
);
6235 iwl4965_write_prph(priv
, BSM_DRAM_DATA_PTR_REG
, pdata
);
6236 iwl4965_write_prph(priv
, BSM_DRAM_DATA_BYTECOUNT_REG
,
6237 priv
->ucode_data
.len
);
6239 /* Inst bytecount must be last to set up, bit 31 signals uCode
6240 * that all new ptr/size info is in place */
6241 iwl4965_write_prph(priv
, BSM_DRAM_INST_BYTECOUNT_REG
,
6242 priv
->ucode_code
.len
| BSM_DRAM_INST_LOAD
);
6244 iwl4965_release_nic_access(priv
);
6246 spin_unlock_irqrestore(&priv
->lock
, flags
);
6248 IWL_DEBUG_INFO("Runtime uCode pointers are set.\n");
6254 * iwl4965_init_alive_start - Called after REPLY_ALIVE notification received
6256 * Called after REPLY_ALIVE notification received from "initialize" uCode.
6258 * The 4965 "initialize" ALIVE reply contains calibration data for:
6259 * Voltage, temperature, and MIMO tx gain correction, now stored in priv
6260 * (3945 does not contain this data).
6262 * Tell "initialize" uCode to go ahead and load the runtime uCode.
6264 static void iwl4965_init_alive_start(struct iwl4965_priv
*priv
)
6266 /* Check alive response for "valid" sign from uCode */
6267 if (priv
->card_alive_init
.is_valid
!= UCODE_VALID_OK
) {
6268 /* We had an error bringing up the hardware, so take it
6269 * all the way back down so we can try again */
6270 IWL_DEBUG_INFO("Initialize Alive failed.\n");
6274 /* Bootstrap uCode has loaded initialize uCode ... verify inst image.
6275 * This is a paranoid check, because we would not have gotten the
6276 * "initialize" alive if code weren't properly loaded. */
6277 if (iwl4965_verify_ucode(priv
)) {
6278 /* Runtime instruction load was bad;
6279 * take it all the way back down so we can try again */
6280 IWL_DEBUG_INFO("Bad \"initialize\" uCode load.\n");
6284 /* Calculate temperature */
6285 priv
->temperature
= iwl4965_get_temperature(priv
);
6287 /* Send pointers to protocol/runtime uCode image ... init code will
6288 * load and launch runtime uCode, which will send us another "Alive"
6290 IWL_DEBUG_INFO("Initialization Alive received.\n");
6291 if (iwl4965_set_ucode_ptrs(priv
)) {
6292 /* Runtime instruction load won't happen;
6293 * take it all the way back down so we can try again */
6294 IWL_DEBUG_INFO("Couldn't set up uCode pointers.\n");
6300 queue_work(priv
->workqueue
, &priv
->restart
);
6305 * iwl4965_alive_start - called after REPLY_ALIVE notification received
6306 * from protocol/runtime uCode (initialization uCode's
6307 * Alive gets handled by iwl4965_init_alive_start()).
6309 static void iwl4965_alive_start(struct iwl4965_priv
*priv
)
6313 IWL_DEBUG_INFO("Runtime Alive received.\n");
6315 if (priv
->card_alive
.is_valid
!= UCODE_VALID_OK
) {
6316 /* We had an error bringing up the hardware, so take it
6317 * all the way back down so we can try again */
6318 IWL_DEBUG_INFO("Alive failed.\n");
6322 /* Initialize uCode has loaded Runtime uCode ... verify inst image.
6323 * This is a paranoid check, because we would not have gotten the
6324 * "runtime" alive if code weren't properly loaded. */
6325 if (iwl4965_verify_ucode(priv
)) {
6326 /* Runtime instruction load was bad;
6327 * take it all the way back down so we can try again */
6328 IWL_DEBUG_INFO("Bad runtime uCode load.\n");
6332 iwl4965_clear_stations_table(priv
);
6334 rc
= iwl4965_alive_notify(priv
);
6336 IWL_WARNING("Could not complete ALIVE transition [ntf]: %d\n",
6341 /* After the ALIVE response, we can send host commands to 4965 uCode */
6342 set_bit(STATUS_ALIVE
, &priv
->status
);
6344 /* Clear out the uCode error bit if it is set */
6345 clear_bit(STATUS_FW_ERROR
, &priv
->status
);
6347 if (iwl4965_is_rfkill(priv
))
6350 ieee80211_start_queues(priv
->hw
);
6352 priv
->active_rate
= priv
->rates_mask
;
6353 priv
->active_rate_basic
= priv
->rates_mask
& IWL_BASIC_RATES_MASK
;
6355 iwl4965_send_power_mode(priv
, IWL_POWER_LEVEL(priv
->power_mode
));
6357 if (iwl4965_is_associated(priv
)) {
6358 struct iwl4965_rxon_cmd
*active_rxon
=
6359 (struct iwl4965_rxon_cmd
*)(&priv
->active_rxon
);
6361 memcpy(&priv
->staging_rxon
, &priv
->active_rxon
,
6362 sizeof(priv
->staging_rxon
));
6363 active_rxon
->filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
6365 /* Initialize our rx_config data */
6366 iwl4965_connection_init_rx_config(priv
);
6367 memcpy(priv
->staging_rxon
.node_addr
, priv
->mac_addr
, ETH_ALEN
);
6370 /* Configure Bluetooth device coexistence support */
6371 iwl4965_send_bt_config(priv
);
6373 /* Configure the adapter for unassociated operation */
6374 iwl4965_commit_rxon(priv
);
6376 /* At this point, the NIC is initialized and operational */
6377 priv
->notif_missed_beacons
= 0;
6378 set_bit(STATUS_READY
, &priv
->status
);
6380 iwl4965_rf_kill_ct_config(priv
);
6382 IWL_DEBUG_INFO("ALIVE processing complete.\n");
6383 wake_up_interruptible(&priv
->wait_command_queue
);
6385 if (priv
->error_recovering
)
6386 iwl4965_error_recovery(priv
);
6391 queue_work(priv
->workqueue
, &priv
->restart
);
6394 static void iwl4965_cancel_deferred_work(struct iwl4965_priv
*priv
);
6396 static void __iwl4965_down(struct iwl4965_priv
*priv
)
6398 unsigned long flags
;
6399 int exit_pending
= test_bit(STATUS_EXIT_PENDING
, &priv
->status
);
6400 struct ieee80211_conf
*conf
= NULL
;
6402 IWL_DEBUG_INFO(DRV_NAME
" is going down\n");
6404 conf
= ieee80211_get_hw_conf(priv
->hw
);
6407 set_bit(STATUS_EXIT_PENDING
, &priv
->status
);
6409 iwl4965_clear_stations_table(priv
);
6411 /* Unblock any waiting calls */
6412 wake_up_interruptible_all(&priv
->wait_command_queue
);
6414 /* Wipe out the EXIT_PENDING status bit if we are not actually
6415 * exiting the module */
6417 clear_bit(STATUS_EXIT_PENDING
, &priv
->status
);
6419 /* stop and reset the on-board processor */
6420 iwl4965_write32(priv
, CSR_RESET
, CSR_RESET_REG_FLAG_NEVO_RESET
);
6422 /* tell the device to stop sending interrupts */
6423 iwl4965_disable_interrupts(priv
);
6425 if (priv
->mac80211_registered
)
6426 ieee80211_stop_queues(priv
->hw
);
6428 /* If we have not previously called iwl4965_init() then
6429 * clear all bits but the RF Kill and SUSPEND bits and return */
6430 if (!iwl4965_is_init(priv
)) {
6431 priv
->status
= test_bit(STATUS_RF_KILL_HW
, &priv
->status
) <<
6433 test_bit(STATUS_RF_KILL_SW
, &priv
->status
) <<
6435 test_bit(STATUS_GEO_CONFIGURED
, &priv
->status
) <<
6436 STATUS_GEO_CONFIGURED
|
6437 test_bit(STATUS_IN_SUSPEND
, &priv
->status
) <<
6442 /* ...otherwise clear out all the status bits but the RF Kill and
6443 * SUSPEND bits and continue taking the NIC down. */
6444 priv
->status
&= test_bit(STATUS_RF_KILL_HW
, &priv
->status
) <<
6446 test_bit(STATUS_RF_KILL_SW
, &priv
->status
) <<
6448 test_bit(STATUS_GEO_CONFIGURED
, &priv
->status
) <<
6449 STATUS_GEO_CONFIGURED
|
6450 test_bit(STATUS_IN_SUSPEND
, &priv
->status
) <<
6452 test_bit(STATUS_FW_ERROR
, &priv
->status
) <<
6455 spin_lock_irqsave(&priv
->lock
, flags
);
6456 iwl4965_clear_bit(priv
, CSR_GP_CNTRL
,
6457 CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ
);
6458 spin_unlock_irqrestore(&priv
->lock
, flags
);
6460 iwl4965_hw_txq_ctx_stop(priv
);
6461 iwl4965_hw_rxq_stop(priv
);
6463 spin_lock_irqsave(&priv
->lock
, flags
);
6464 if (!iwl4965_grab_nic_access(priv
)) {
6465 iwl4965_write_prph(priv
, APMG_CLK_DIS_REG
,
6466 APMG_CLK_VAL_DMA_CLK_RQT
);
6467 iwl4965_release_nic_access(priv
);
6469 spin_unlock_irqrestore(&priv
->lock
, flags
);
6473 iwl4965_hw_nic_stop_master(priv
);
6474 iwl4965_set_bit(priv
, CSR_RESET
, CSR_RESET_REG_FLAG_SW_RESET
);
6475 iwl4965_hw_nic_reset(priv
);
6478 memset(&priv
->card_alive
, 0, sizeof(struct iwl4965_alive_resp
));
6480 if (priv
->ibss_beacon
)
6481 dev_kfree_skb(priv
->ibss_beacon
);
6482 priv
->ibss_beacon
= NULL
;
6484 /* clear out any free frames */
6485 iwl4965_clear_free_frames(priv
);
6488 static void iwl4965_down(struct iwl4965_priv
*priv
)
6490 mutex_lock(&priv
->mutex
);
6491 __iwl4965_down(priv
);
6492 mutex_unlock(&priv
->mutex
);
6494 iwl4965_cancel_deferred_work(priv
);
6497 #define MAX_HW_RESTARTS 5
6499 static int __iwl4965_up(struct iwl4965_priv
*priv
)
6503 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
)) {
6504 IWL_WARNING("Exit pending; will not bring the NIC up\n");
6508 if (test_bit(STATUS_RF_KILL_SW
, &priv
->status
)) {
6509 IWL_WARNING("Radio disabled by SW RF kill (module "
6514 if (!priv
->ucode_data_backup
.v_addr
|| !priv
->ucode_data
.v_addr
) {
6515 IWL_ERROR("ucode not available for device bringup\n");
6519 /* If platform's RF_KILL switch is NOT set to KILL */
6520 if (iwl4965_read32(priv
, CSR_GP_CNTRL
) &
6521 CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW
)
6522 clear_bit(STATUS_RF_KILL_HW
, &priv
->status
);
6524 set_bit(STATUS_RF_KILL_HW
, &priv
->status
);
6525 if (!test_bit(STATUS_IN_SUSPEND
, &priv
->status
)) {
6526 IWL_WARNING("Radio disabled by HW RF Kill switch\n");
6531 iwl4965_write32(priv
, CSR_INT
, 0xFFFFFFFF);
6533 rc
= iwl4965_hw_nic_init(priv
);
6535 IWL_ERROR("Unable to int nic\n");
6539 /* make sure rfkill handshake bits are cleared */
6540 iwl4965_write32(priv
, CSR_UCODE_DRV_GP1_CLR
, CSR_UCODE_SW_BIT_RFKILL
);
6541 iwl4965_write32(priv
, CSR_UCODE_DRV_GP1_CLR
,
6542 CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED
);
6544 /* clear (again), then enable host interrupts */
6545 iwl4965_write32(priv
, CSR_INT
, 0xFFFFFFFF);
6546 iwl4965_enable_interrupts(priv
);
6548 /* really make sure rfkill handshake bits are cleared */
6549 iwl4965_write32(priv
, CSR_UCODE_DRV_GP1_CLR
, CSR_UCODE_SW_BIT_RFKILL
);
6550 iwl4965_write32(priv
, CSR_UCODE_DRV_GP1_CLR
, CSR_UCODE_SW_BIT_RFKILL
);
6552 /* Copy original ucode data image from disk into backup cache.
6553 * This will be used to initialize the on-board processor's
6554 * data SRAM for a clean start when the runtime program first loads. */
6555 memcpy(priv
->ucode_data_backup
.v_addr
, priv
->ucode_data
.v_addr
,
6556 priv
->ucode_data
.len
);
6558 /* We return success when we resume from suspend and rf_kill is on. */
6559 if (test_bit(STATUS_RF_KILL_HW
, &priv
->status
))
6562 for (i
= 0; i
< MAX_HW_RESTARTS
; i
++) {
6564 iwl4965_clear_stations_table(priv
);
6566 /* load bootstrap state machine,
6567 * load bootstrap program into processor's memory,
6568 * prepare to load the "initialize" uCode */
6569 rc
= iwl4965_load_bsm(priv
);
6572 IWL_ERROR("Unable to set up bootstrap uCode: %d\n", rc
);
6576 /* start card; "initialize" will load runtime ucode */
6577 iwl4965_nic_start(priv
);
6579 IWL_DEBUG_INFO(DRV_NAME
" is coming up\n");
6584 set_bit(STATUS_EXIT_PENDING
, &priv
->status
);
6585 __iwl4965_down(priv
);
6587 /* tried to restart and config the device for as long as our
6588 * patience could withstand */
6589 IWL_ERROR("Unable to initialize device after %d attempts.\n", i
);
6594 /*****************************************************************************
6596 * Workqueue callbacks
6598 *****************************************************************************/
6600 static void iwl4965_bg_init_alive_start(struct work_struct
*data
)
6602 struct iwl4965_priv
*priv
=
6603 container_of(data
, struct iwl4965_priv
, init_alive_start
.work
);
6605 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6608 mutex_lock(&priv
->mutex
);
6609 iwl4965_init_alive_start(priv
);
6610 mutex_unlock(&priv
->mutex
);
6613 static void iwl4965_bg_alive_start(struct work_struct
*data
)
6615 struct iwl4965_priv
*priv
=
6616 container_of(data
, struct iwl4965_priv
, alive_start
.work
);
6618 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6621 mutex_lock(&priv
->mutex
);
6622 iwl4965_alive_start(priv
);
6623 mutex_unlock(&priv
->mutex
);
6626 static void iwl4965_bg_rf_kill(struct work_struct
*work
)
6628 struct iwl4965_priv
*priv
= container_of(work
, struct iwl4965_priv
, rf_kill
);
6630 wake_up_interruptible(&priv
->wait_command_queue
);
6632 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6635 mutex_lock(&priv
->mutex
);
6637 if (!iwl4965_is_rfkill(priv
)) {
6638 IWL_DEBUG(IWL_DL_INFO
| IWL_DL_RF_KILL
,
6639 "HW and/or SW RF Kill no longer active, restarting "
6641 if (!test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6642 queue_work(priv
->workqueue
, &priv
->restart
);
6645 if (!test_bit(STATUS_RF_KILL_HW
, &priv
->status
))
6646 IWL_DEBUG_RF_KILL("Can not turn radio back on - "
6647 "disabled by SW switch\n");
6649 IWL_WARNING("Radio Frequency Kill Switch is On:\n"
6650 "Kill switch must be turned off for "
6651 "wireless networking to work.\n");
6653 mutex_unlock(&priv
->mutex
);
6656 #define IWL_SCAN_CHECK_WATCHDOG (7 * HZ)
6658 static void iwl4965_bg_scan_check(struct work_struct
*data
)
6660 struct iwl4965_priv
*priv
=
6661 container_of(data
, struct iwl4965_priv
, scan_check
.work
);
6663 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6666 mutex_lock(&priv
->mutex
);
6667 if (test_bit(STATUS_SCANNING
, &priv
->status
) ||
6668 test_bit(STATUS_SCAN_ABORTING
, &priv
->status
)) {
6669 IWL_DEBUG(IWL_DL_INFO
| IWL_DL_SCAN
,
6670 "Scan completion watchdog resetting adapter (%dms)\n",
6671 jiffies_to_msecs(IWL_SCAN_CHECK_WATCHDOG
));
6673 if (!test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6674 iwl4965_send_scan_abort(priv
);
6676 mutex_unlock(&priv
->mutex
);
6679 static void iwl4965_bg_request_scan(struct work_struct
*data
)
6681 struct iwl4965_priv
*priv
=
6682 container_of(data
, struct iwl4965_priv
, request_scan
);
6683 struct iwl4965_host_cmd cmd
= {
6684 .id
= REPLY_SCAN_CMD
,
6685 .len
= sizeof(struct iwl4965_scan_cmd
),
6686 .meta
.flags
= CMD_SIZE_HUGE
,
6689 struct iwl4965_scan_cmd
*scan
;
6690 struct ieee80211_conf
*conf
= NULL
;
6692 enum ieee80211_band band
;
6695 conf
= ieee80211_get_hw_conf(priv
->hw
);
6697 mutex_lock(&priv
->mutex
);
6699 if (!iwl4965_is_ready(priv
)) {
6700 IWL_WARNING("request scan called when driver not ready.\n");
6704 /* Make sure the scan wasn't cancelled before this queued work
6705 * was given the chance to run... */
6706 if (!test_bit(STATUS_SCANNING
, &priv
->status
))
6709 /* This should never be called or scheduled if there is currently
6710 * a scan active in the hardware. */
6711 if (test_bit(STATUS_SCAN_HW
, &priv
->status
)) {
6712 IWL_DEBUG_INFO("Multiple concurrent scan requests in parallel. "
6713 "Ignoring second request.\n");
6718 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
)) {
6719 IWL_DEBUG_SCAN("Aborting scan due to device shutdown\n");
6723 if (test_bit(STATUS_SCAN_ABORTING
, &priv
->status
)) {
6724 IWL_DEBUG_HC("Scan request while abort pending. Queuing.\n");
6728 if (iwl4965_is_rfkill(priv
)) {
6729 IWL_DEBUG_HC("Aborting scan due to RF Kill activation\n");
6733 if (!test_bit(STATUS_READY
, &priv
->status
)) {
6734 IWL_DEBUG_HC("Scan request while uninitialized. Queuing.\n");
6738 if (!priv
->scan_bands
) {
6739 IWL_DEBUG_HC("Aborting scan due to no requested bands\n");
6744 priv
->scan
= kmalloc(sizeof(struct iwl4965_scan_cmd
) +
6745 IWL_MAX_SCAN_SIZE
, GFP_KERNEL
);
6752 memset(scan
, 0, sizeof(struct iwl4965_scan_cmd
) + IWL_MAX_SCAN_SIZE
);
6754 scan
->quiet_plcp_th
= IWL_PLCP_QUIET_THRESH
;
6755 scan
->quiet_time
= IWL_ACTIVE_QUIET_TIME
;
6757 if (iwl4965_is_associated(priv
)) {
6760 u32 suspend_time
= 100;
6761 u32 scan_suspend_time
= 100;
6762 unsigned long flags
;
6764 IWL_DEBUG_INFO("Scanning while associated...\n");
6766 spin_lock_irqsave(&priv
->lock
, flags
);
6767 interval
= priv
->beacon_int
;
6768 spin_unlock_irqrestore(&priv
->lock
, flags
);
6770 scan
->suspend_time
= 0;
6771 scan
->max_out_time
= cpu_to_le32(200 * 1024);
6773 interval
= suspend_time
;
6775 extra
= (suspend_time
/ interval
) << 22;
6776 scan_suspend_time
= (extra
|
6777 ((suspend_time
% interval
) * 1024));
6778 scan
->suspend_time
= cpu_to_le32(scan_suspend_time
);
6779 IWL_DEBUG_SCAN("suspend_time 0x%X beacon interval %d\n",
6780 scan_suspend_time
, interval
);
6783 /* We should add the ability for user to lock to PASSIVE ONLY */
6784 if (priv
->one_direct_scan
) {
6786 ("Kicking off one direct scan for '%s'\n",
6787 iwl4965_escape_essid(priv
->direct_ssid
,
6788 priv
->direct_ssid_len
));
6789 scan
->direct_scan
[0].id
= WLAN_EID_SSID
;
6790 scan
->direct_scan
[0].len
= priv
->direct_ssid_len
;
6791 memcpy(scan
->direct_scan
[0].ssid
,
6792 priv
->direct_ssid
, priv
->direct_ssid_len
);
6794 } else if (!iwl4965_is_associated(priv
) && priv
->essid_len
) {
6795 scan
->direct_scan
[0].id
= WLAN_EID_SSID
;
6796 scan
->direct_scan
[0].len
= priv
->essid_len
;
6797 memcpy(scan
->direct_scan
[0].ssid
, priv
->essid
, priv
->essid_len
);
6802 scan
->tx_cmd
.tx_flags
= TX_CMD_FLG_SEQ_CTL_MSK
;
6803 scan
->tx_cmd
.sta_id
= priv
->hw_setting
.bcast_sta_id
;
6804 scan
->tx_cmd
.stop_time
.life_time
= TX_CMD_LIFE_TIME_INFINITE
;
6807 switch (priv
->scan_bands
) {
6809 scan
->flags
= RXON_FLG_BAND_24G_MSK
| RXON_FLG_AUTO_DETECT_MSK
;
6810 scan
->tx_cmd
.rate_n_flags
=
6811 iwl4965_hw_set_rate_n_flags(IWL_RATE_1M_PLCP
,
6812 RATE_MCS_ANT_B_MSK
|RATE_MCS_CCK_MSK
);
6814 scan
->good_CRC_th
= 0;
6815 band
= IEEE80211_BAND_2GHZ
;
6819 scan
->tx_cmd
.rate_n_flags
=
6820 iwl4965_hw_set_rate_n_flags(IWL_RATE_6M_PLCP
,
6821 RATE_MCS_ANT_B_MSK
);
6822 scan
->good_CRC_th
= IWL_GOOD_CRC_TH
;
6823 band
= IEEE80211_BAND_5GHZ
;
6827 IWL_WARNING("Invalid scan band count\n");
6831 /* We don't build a direct scan probe request; the uCode will do
6832 * that based on the direct_mask added to each channel entry */
6833 cmd_len
= iwl4965_fill_probe_req(priv
, band
,
6834 (struct ieee80211_mgmt
*)scan
->data
,
6835 IWL_MAX_SCAN_SIZE
- sizeof(*scan
), 0);
6837 scan
->tx_cmd
.len
= cpu_to_le16(cmd_len
);
6838 /* select Rx chains */
6840 /* Force use of chains B and C (0x6) for scan Rx.
6841 * Avoid A (0x1) because of its off-channel reception on A-band.
6842 * MIMO is not used here, but value is required to make uCode happy. */
6843 scan
->rx_chain
= RXON_RX_CHAIN_DRIVER_FORCE_MSK
|
6844 cpu_to_le16((0x7 << RXON_RX_CHAIN_VALID_POS
) |
6845 (0x6 << RXON_RX_CHAIN_FORCE_SEL_POS
) |
6846 (0x7 << RXON_RX_CHAIN_FORCE_MIMO_SEL_POS
));
6848 if (priv
->iw_mode
== IEEE80211_IF_TYPE_MNTR
)
6849 scan
->filter_flags
= RXON_FILTER_PROMISC_MSK
;
6853 ("Initiating direct scan for %s.\n",
6854 iwl4965_escape_essid(priv
->essid
, priv
->essid_len
));
6856 IWL_DEBUG_SCAN("Initiating indirect scan.\n");
6858 scan
->channel_count
=
6859 iwl4965_get_channels_for_scan(
6860 priv
, band
, 1, /* active */
6862 (void *)&scan
->data
[le16_to_cpu(scan
->tx_cmd
.len
)]);
6864 cmd
.len
+= le16_to_cpu(scan
->tx_cmd
.len
) +
6865 scan
->channel_count
* sizeof(struct iwl4965_scan_channel
);
6867 scan
->len
= cpu_to_le16(cmd
.len
);
6869 set_bit(STATUS_SCAN_HW
, &priv
->status
);
6870 rc
= iwl4965_send_cmd_sync(priv
, &cmd
);
6874 queue_delayed_work(priv
->workqueue
, &priv
->scan_check
,
6875 IWL_SCAN_CHECK_WATCHDOG
);
6877 mutex_unlock(&priv
->mutex
);
6881 /* inform mac80211 scan aborted */
6882 queue_work(priv
->workqueue
, &priv
->scan_completed
);
6883 mutex_unlock(&priv
->mutex
);
6886 static void iwl4965_bg_up(struct work_struct
*data
)
6888 struct iwl4965_priv
*priv
= container_of(data
, struct iwl4965_priv
, up
);
6890 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6893 mutex_lock(&priv
->mutex
);
6895 mutex_unlock(&priv
->mutex
);
6898 static void iwl4965_bg_restart(struct work_struct
*data
)
6900 struct iwl4965_priv
*priv
= container_of(data
, struct iwl4965_priv
, restart
);
6902 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6906 queue_work(priv
->workqueue
, &priv
->up
);
6909 static void iwl4965_bg_rx_replenish(struct work_struct
*data
)
6911 struct iwl4965_priv
*priv
=
6912 container_of(data
, struct iwl4965_priv
, rx_replenish
);
6914 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6917 mutex_lock(&priv
->mutex
);
6918 iwl4965_rx_replenish(priv
);
6919 mutex_unlock(&priv
->mutex
);
6922 #define IWL_DELAY_NEXT_SCAN (HZ*2)
6924 static void iwl4965_bg_post_associate(struct work_struct
*data
)
6926 struct iwl4965_priv
*priv
= container_of(data
, struct iwl4965_priv
,
6927 post_associate
.work
);
6930 struct ieee80211_conf
*conf
= NULL
;
6931 DECLARE_MAC_BUF(mac
);
6933 if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) {
6934 IWL_ERROR("%s Should not be called in AP mode\n", __FUNCTION__
);
6938 IWL_DEBUG_ASSOC("Associated as %d to: %s\n",
6940 print_mac(mac
, priv
->active_rxon
.bssid_addr
));
6943 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6946 mutex_lock(&priv
->mutex
);
6948 if (!priv
->vif
|| !priv
->is_open
) {
6949 mutex_unlock(&priv
->mutex
);
6952 iwl4965_scan_cancel_timeout(priv
, 200);
6954 conf
= ieee80211_get_hw_conf(priv
->hw
);
6956 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
6957 iwl4965_commit_rxon(priv
);
6959 memset(&priv
->rxon_timing
, 0, sizeof(struct iwl4965_rxon_time_cmd
));
6960 iwl4965_setup_rxon_timing(priv
);
6961 rc
= iwl4965_send_cmd_pdu(priv
, REPLY_RXON_TIMING
,
6962 sizeof(priv
->rxon_timing
), &priv
->rxon_timing
);
6964 IWL_WARNING("REPLY_RXON_TIMING failed - "
6965 "Attempting to continue.\n");
6967 priv
->staging_rxon
.filter_flags
|= RXON_FILTER_ASSOC_MSK
;
6969 #ifdef CONFIG_IWL4965_HT
6970 if (priv
->current_ht_config
.is_ht
)
6971 iwl4965_set_rxon_ht(priv
, &priv
->current_ht_config
);
6972 #endif /* CONFIG_IWL4965_HT*/
6973 iwl4965_set_rxon_chain(priv
);
6974 priv
->staging_rxon
.assoc_id
= cpu_to_le16(priv
->assoc_id
);
6976 IWL_DEBUG_ASSOC("assoc id %d beacon interval %d\n",
6977 priv
->assoc_id
, priv
->beacon_int
);
6979 if (priv
->assoc_capability
& WLAN_CAPABILITY_SHORT_PREAMBLE
)
6980 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_PREAMBLE_MSK
;
6982 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_PREAMBLE_MSK
;
6984 if (priv
->staging_rxon
.flags
& RXON_FLG_BAND_24G_MSK
) {
6985 if (priv
->assoc_capability
& WLAN_CAPABILITY_SHORT_SLOT_TIME
)
6986 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_SLOT_MSK
;
6988 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_SLOT_MSK
;
6990 if (priv
->iw_mode
== IEEE80211_IF_TYPE_IBSS
)
6991 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_SLOT_MSK
;
6995 iwl4965_commit_rxon(priv
);
6997 switch (priv
->iw_mode
) {
6998 case IEEE80211_IF_TYPE_STA
:
6999 iwl4965_rate_scale_init(priv
->hw
, IWL_AP_ID
);
7002 case IEEE80211_IF_TYPE_IBSS
:
7004 /* clear out the station table */
7005 iwl4965_clear_stations_table(priv
);
7007 iwl4965_rxon_add_station(priv
, iwl4965_broadcast_addr
, 0);
7008 iwl4965_rxon_add_station(priv
, priv
->bssid
, 0);
7009 iwl4965_rate_scale_init(priv
->hw
, IWL_STA_ID
);
7010 iwl4965_send_beacon_cmd(priv
);
7015 IWL_ERROR("%s Should not be called in %d mode\n",
7016 __FUNCTION__
, priv
->iw_mode
);
7020 iwl4965_sequence_reset(priv
);
7022 #ifdef CONFIG_IWL4965_SENSITIVITY
7023 /* Enable Rx differential gain and sensitivity calibrations */
7024 iwl4965_chain_noise_reset(priv
);
7025 priv
->start_calib
= 1;
7026 #endif /* CONFIG_IWL4965_SENSITIVITY */
7028 if (priv
->iw_mode
== IEEE80211_IF_TYPE_IBSS
)
7029 priv
->assoc_station_added
= 1;
7031 iwl4965_activate_qos(priv
, 0);
7033 /* we have just associated, don't start scan too early */
7034 priv
->next_scan_jiffies
= jiffies
+ IWL_DELAY_NEXT_SCAN
;
7035 mutex_unlock(&priv
->mutex
);
7038 static void iwl4965_bg_abort_scan(struct work_struct
*work
)
7040 struct iwl4965_priv
*priv
= container_of(work
, struct iwl4965_priv
, abort_scan
);
7042 if (!iwl4965_is_ready(priv
))
7045 mutex_lock(&priv
->mutex
);
7047 set_bit(STATUS_SCAN_ABORTING
, &priv
->status
);
7048 iwl4965_send_scan_abort(priv
);
7050 mutex_unlock(&priv
->mutex
);
7053 static int iwl4965_mac_config(struct ieee80211_hw
*hw
, struct ieee80211_conf
*conf
);
7055 static void iwl4965_bg_scan_completed(struct work_struct
*work
)
7057 struct iwl4965_priv
*priv
=
7058 container_of(work
, struct iwl4965_priv
, scan_completed
);
7060 IWL_DEBUG(IWL_DL_INFO
| IWL_DL_SCAN
, "SCAN complete scan\n");
7062 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
7065 if (test_bit(STATUS_CONF_PENDING
, &priv
->status
))
7066 iwl4965_mac_config(priv
->hw
, ieee80211_get_hw_conf(priv
->hw
));
7068 ieee80211_scan_completed(priv
->hw
);
7070 /* Since setting the TXPOWER may have been deferred while
7071 * performing the scan, fire one off */
7072 mutex_lock(&priv
->mutex
);
7073 iwl4965_hw_reg_send_txpower(priv
);
7074 mutex_unlock(&priv
->mutex
);
7077 /*****************************************************************************
7079 * mac80211 entry point functions
7081 *****************************************************************************/
7083 #define UCODE_READY_TIMEOUT (2 * HZ)
7085 static int iwl4965_mac_start(struct ieee80211_hw
*hw
)
7087 struct iwl4965_priv
*priv
= hw
->priv
;
7090 IWL_DEBUG_MAC80211("enter\n");
7092 if (pci_enable_device(priv
->pci_dev
)) {
7093 IWL_ERROR("Fail to pci_enable_device\n");
7096 pci_restore_state(priv
->pci_dev
);
7097 pci_enable_msi(priv
->pci_dev
);
7099 ret
= request_irq(priv
->pci_dev
->irq
, iwl4965_isr
, IRQF_SHARED
,
7102 IWL_ERROR("Error allocating IRQ %d\n", priv
->pci_dev
->irq
);
7103 goto out_disable_msi
;
7106 /* we should be verifying the device is ready to be opened */
7107 mutex_lock(&priv
->mutex
);
7109 memset(&priv
->staging_rxon
, 0, sizeof(struct iwl4965_rxon_cmd
));
7110 /* fetch ucode file from disk, alloc and copy to bus-master buffers ...
7111 * ucode filename and max sizes are card-specific. */
7113 if (!priv
->ucode_code
.len
) {
7114 ret
= iwl4965_read_ucode(priv
);
7116 IWL_ERROR("Could not read microcode: %d\n", ret
);
7117 mutex_unlock(&priv
->mutex
);
7118 goto out_release_irq
;
7122 ret
= __iwl4965_up(priv
);
7124 mutex_unlock(&priv
->mutex
);
7127 goto out_release_irq
;
7129 IWL_DEBUG_INFO("Start UP work done.\n");
7131 if (test_bit(STATUS_IN_SUSPEND
, &priv
->status
))
7134 /* Wait for START_ALIVE from ucode. Otherwise callbacks from
7135 * mac80211 will not be run successfully. */
7136 ret
= wait_event_interruptible_timeout(priv
->wait_command_queue
,
7137 test_bit(STATUS_READY
, &priv
->status
),
7138 UCODE_READY_TIMEOUT
);
7140 if (!test_bit(STATUS_READY
, &priv
->status
)) {
7141 IWL_ERROR("Wait for START_ALIVE timeout after %dms.\n",
7142 jiffies_to_msecs(UCODE_READY_TIMEOUT
));
7144 goto out_release_irq
;
7149 IWL_DEBUG_MAC80211("leave\n");
7153 free_irq(priv
->pci_dev
->irq
, priv
);
7155 pci_disable_msi(priv
->pci_dev
);
7156 pci_disable_device(priv
->pci_dev
);
7158 IWL_DEBUG_MAC80211("leave - failed\n");
7162 static void iwl4965_mac_stop(struct ieee80211_hw
*hw
)
7164 struct iwl4965_priv
*priv
= hw
->priv
;
7166 IWL_DEBUG_MAC80211("enter\n");
7168 if (!priv
->is_open
) {
7169 IWL_DEBUG_MAC80211("leave - skip\n");
7175 if (iwl4965_is_ready_rf(priv
)) {
7176 /* stop mac, cancel any scan request and clear
7177 * RXON_FILTER_ASSOC_MSK BIT
7179 mutex_lock(&priv
->mutex
);
7180 iwl4965_scan_cancel_timeout(priv
, 100);
7181 cancel_delayed_work(&priv
->post_associate
);
7182 mutex_unlock(&priv
->mutex
);
7187 flush_workqueue(priv
->workqueue
);
7188 free_irq(priv
->pci_dev
->irq
, priv
);
7189 pci_disable_msi(priv
->pci_dev
);
7190 pci_save_state(priv
->pci_dev
);
7191 pci_disable_device(priv
->pci_dev
);
7193 IWL_DEBUG_MAC80211("leave\n");
7196 static int iwl4965_mac_tx(struct ieee80211_hw
*hw
, struct sk_buff
*skb
,
7197 struct ieee80211_tx_control
*ctl
)
7199 struct iwl4965_priv
*priv
= hw
->priv
;
7201 IWL_DEBUG_MAC80211("enter\n");
7203 if (priv
->iw_mode
== IEEE80211_IF_TYPE_MNTR
) {
7204 IWL_DEBUG_MAC80211("leave - monitor\n");
7208 IWL_DEBUG_TX("dev->xmit(%d bytes) at rate 0x%02x\n", skb
->len
,
7209 ctl
->tx_rate
->bitrate
);
7211 if (iwl4965_tx_skb(priv
, skb
, ctl
))
7212 dev_kfree_skb_any(skb
);
7214 IWL_DEBUG_MAC80211("leave\n");
7218 static int iwl4965_mac_add_interface(struct ieee80211_hw
*hw
,
7219 struct ieee80211_if_init_conf
*conf
)
7221 struct iwl4965_priv
*priv
= hw
->priv
;
7222 unsigned long flags
;
7223 DECLARE_MAC_BUF(mac
);
7225 IWL_DEBUG_MAC80211("enter: type %d\n", conf
->type
);
7228 IWL_DEBUG_MAC80211("leave - vif != NULL\n");
7232 spin_lock_irqsave(&priv
->lock
, flags
);
7233 priv
->vif
= conf
->vif
;
7235 spin_unlock_irqrestore(&priv
->lock
, flags
);
7237 mutex_lock(&priv
->mutex
);
7239 if (conf
->mac_addr
) {
7240 IWL_DEBUG_MAC80211("Set %s\n", print_mac(mac
, conf
->mac_addr
));
7241 memcpy(priv
->mac_addr
, conf
->mac_addr
, ETH_ALEN
);
7244 if (iwl4965_is_ready(priv
))
7245 iwl4965_set_mode(priv
, conf
->type
);
7247 mutex_unlock(&priv
->mutex
);
7249 IWL_DEBUG_MAC80211("leave\n");
7254 * iwl4965_mac_config - mac80211 config callback
7256 * We ignore conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME since it seems to
7257 * be set inappropriately and the driver currently sets the hardware up to
7258 * use it whenever needed.
7260 static int iwl4965_mac_config(struct ieee80211_hw
*hw
, struct ieee80211_conf
*conf
)
7262 struct iwl4965_priv
*priv
= hw
->priv
;
7263 const struct iwl4965_channel_info
*ch_info
;
7264 unsigned long flags
;
7267 mutex_lock(&priv
->mutex
);
7268 IWL_DEBUG_MAC80211("enter to channel %d\n", conf
->channel
->hw_value
);
7270 priv
->add_radiotap
= !!(conf
->flags
& IEEE80211_CONF_RADIOTAP
);
7272 if (!iwl4965_is_ready(priv
)) {
7273 IWL_DEBUG_MAC80211("leave - not ready\n");
7278 if (unlikely(!iwl4965_param_disable_hw_scan
&&
7279 test_bit(STATUS_SCANNING
, &priv
->status
))) {
7280 IWL_DEBUG_MAC80211("leave - scanning\n");
7281 set_bit(STATUS_CONF_PENDING
, &priv
->status
);
7282 mutex_unlock(&priv
->mutex
);
7286 spin_lock_irqsave(&priv
->lock
, flags
);
7288 ch_info
= iwl4965_get_channel_info(priv
, conf
->channel
->band
,
7289 ieee80211_frequency_to_channel(conf
->channel
->center_freq
));
7290 if (!is_channel_valid(ch_info
)) {
7291 IWL_DEBUG_MAC80211("leave - invalid channel\n");
7292 spin_unlock_irqrestore(&priv
->lock
, flags
);
7297 #ifdef CONFIG_IWL4965_HT
7298 /* if we are switching from ht to 2.4 clear flags
7299 * from any ht related info since 2.4 does not
7301 if ((le16_to_cpu(priv
->staging_rxon
.channel
) != conf
->channel
->hw_value
)
7302 #ifdef IEEE80211_CONF_CHANNEL_SWITCH
7303 && !(conf
->flags
& IEEE80211_CONF_CHANNEL_SWITCH
)
7306 priv
->staging_rxon
.flags
= 0;
7307 #endif /* CONFIG_IWL4965_HT */
7309 iwl4965_set_rxon_channel(priv
, conf
->channel
->band
,
7310 ieee80211_frequency_to_channel(conf
->channel
->center_freq
));
7312 iwl4965_set_flags_for_phymode(priv
, conf
->channel
->band
);
7314 /* The list of supported rates and rate mask can be different
7315 * for each band; since the band may have changed, reset
7316 * the rate mask to what mac80211 lists */
7317 iwl4965_set_rate(priv
);
7319 spin_unlock_irqrestore(&priv
->lock
, flags
);
7321 #ifdef IEEE80211_CONF_CHANNEL_SWITCH
7322 if (conf
->flags
& IEEE80211_CONF_CHANNEL_SWITCH
) {
7323 iwl4965_hw_channel_switch(priv
, conf
->channel
);
7328 iwl4965_radio_kill_sw(priv
, !conf
->radio_enabled
);
7330 if (!conf
->radio_enabled
) {
7331 IWL_DEBUG_MAC80211("leave - radio disabled\n");
7335 if (iwl4965_is_rfkill(priv
)) {
7336 IWL_DEBUG_MAC80211("leave - RF kill\n");
7341 iwl4965_set_rate(priv
);
7343 if (memcmp(&priv
->active_rxon
,
7344 &priv
->staging_rxon
, sizeof(priv
->staging_rxon
)))
7345 iwl4965_commit_rxon(priv
);
7347 IWL_DEBUG_INFO("No re-sending same RXON configuration.\n");
7349 IWL_DEBUG_MAC80211("leave\n");
7352 clear_bit(STATUS_CONF_PENDING
, &priv
->status
);
7353 mutex_unlock(&priv
->mutex
);
7357 static void iwl4965_config_ap(struct iwl4965_priv
*priv
)
7361 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
7364 /* The following should be done only at AP bring up */
7365 if ((priv
->active_rxon
.filter_flags
& RXON_FILTER_ASSOC_MSK
) == 0) {
7367 /* RXON - unassoc (to set timing command) */
7368 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
7369 iwl4965_commit_rxon(priv
);
7372 memset(&priv
->rxon_timing
, 0, sizeof(struct iwl4965_rxon_time_cmd
));
7373 iwl4965_setup_rxon_timing(priv
);
7374 rc
= iwl4965_send_cmd_pdu(priv
, REPLY_RXON_TIMING
,
7375 sizeof(priv
->rxon_timing
), &priv
->rxon_timing
);
7377 IWL_WARNING("REPLY_RXON_TIMING failed - "
7378 "Attempting to continue.\n");
7380 iwl4965_set_rxon_chain(priv
);
7382 /* FIXME: what should be the assoc_id for AP? */
7383 priv
->staging_rxon
.assoc_id
= cpu_to_le16(priv
->assoc_id
);
7384 if (priv
->assoc_capability
& WLAN_CAPABILITY_SHORT_PREAMBLE
)
7385 priv
->staging_rxon
.flags
|=
7386 RXON_FLG_SHORT_PREAMBLE_MSK
;
7388 priv
->staging_rxon
.flags
&=
7389 ~RXON_FLG_SHORT_PREAMBLE_MSK
;
7391 if (priv
->staging_rxon
.flags
& RXON_FLG_BAND_24G_MSK
) {
7392 if (priv
->assoc_capability
&
7393 WLAN_CAPABILITY_SHORT_SLOT_TIME
)
7394 priv
->staging_rxon
.flags
|=
7395 RXON_FLG_SHORT_SLOT_MSK
;
7397 priv
->staging_rxon
.flags
&=
7398 ~RXON_FLG_SHORT_SLOT_MSK
;
7400 if (priv
->iw_mode
== IEEE80211_IF_TYPE_IBSS
)
7401 priv
->staging_rxon
.flags
&=
7402 ~RXON_FLG_SHORT_SLOT_MSK
;
7404 /* restore RXON assoc */
7405 priv
->staging_rxon
.filter_flags
|= RXON_FILTER_ASSOC_MSK
;
7406 iwl4965_commit_rxon(priv
);
7407 iwl4965_activate_qos(priv
, 1);
7408 iwl4965_rxon_add_station(priv
, iwl4965_broadcast_addr
, 0);
7410 iwl4965_send_beacon_cmd(priv
);
7412 /* FIXME - we need to add code here to detect a totally new
7413 * configuration, reset the AP, unassoc, rxon timing, assoc,
7414 * clear sta table, add BCAST sta... */
7417 static int iwl4965_mac_config_interface(struct ieee80211_hw
*hw
,
7418 struct ieee80211_vif
*vif
,
7419 struct ieee80211_if_conf
*conf
)
7421 struct iwl4965_priv
*priv
= hw
->priv
;
7422 DECLARE_MAC_BUF(mac
);
7423 unsigned long flags
;
7429 if ((priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) &&
7430 (!conf
->beacon
|| !conf
->ssid_len
)) {
7432 ("Leaving in AP mode because HostAPD is not ready.\n");
7436 if (!iwl4965_is_alive(priv
))
7439 mutex_lock(&priv
->mutex
);
7442 IWL_DEBUG_MAC80211("bssid: %s\n",
7443 print_mac(mac
, conf
->bssid
));
7446 * very dubious code was here; the probe filtering flag is never set:
7448 if (unlikely(test_bit(STATUS_SCANNING, &priv->status)) &&
7449 !(priv->hw->flags & IEEE80211_HW_NO_PROBE_FILTERING)) {
7451 if (unlikely(test_bit(STATUS_SCANNING
, &priv
->status
))) {
7452 IWL_DEBUG_MAC80211("leave - scanning\n");
7453 mutex_unlock(&priv
->mutex
);
7457 if (priv
->vif
!= vif
) {
7458 IWL_DEBUG_MAC80211("leave - priv->vif != vif\n");
7459 mutex_unlock(&priv
->mutex
);
7463 if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) {
7465 conf
->bssid
= priv
->mac_addr
;
7466 memcpy(priv
->bssid
, priv
->mac_addr
, ETH_ALEN
);
7467 IWL_DEBUG_MAC80211("bssid was set to: %s\n",
7468 print_mac(mac
, conf
->bssid
));
7470 if (priv
->ibss_beacon
)
7471 dev_kfree_skb(priv
->ibss_beacon
);
7473 priv
->ibss_beacon
= conf
->beacon
;
7476 if (iwl4965_is_rfkill(priv
))
7479 if (conf
->bssid
&& !is_zero_ether_addr(conf
->bssid
) &&
7480 !is_multicast_ether_addr(conf
->bssid
)) {
7481 /* If there is currently a HW scan going on in the background
7482 * then we need to cancel it else the RXON below will fail. */
7483 if (iwl4965_scan_cancel_timeout(priv
, 100)) {
7484 IWL_WARNING("Aborted scan still in progress "
7486 IWL_DEBUG_MAC80211("leaving - scan abort failed.\n");
7487 mutex_unlock(&priv
->mutex
);
7490 memcpy(priv
->staging_rxon
.bssid_addr
, conf
->bssid
, ETH_ALEN
);
7492 /* TODO: Audit driver for usage of these members and see
7493 * if mac80211 deprecates them (priv->bssid looks like it
7494 * shouldn't be there, but I haven't scanned the IBSS code
7495 * to verify) - jpk */
7496 memcpy(priv
->bssid
, conf
->bssid
, ETH_ALEN
);
7498 if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
)
7499 iwl4965_config_ap(priv
);
7501 rc
= iwl4965_commit_rxon(priv
);
7502 if ((priv
->iw_mode
== IEEE80211_IF_TYPE_STA
) && rc
)
7503 iwl4965_rxon_add_station(
7504 priv
, priv
->active_rxon
.bssid_addr
, 1);
7508 iwl4965_scan_cancel_timeout(priv
, 100);
7509 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
7510 iwl4965_commit_rxon(priv
);
7514 spin_lock_irqsave(&priv
->lock
, flags
);
7515 if (!conf
->ssid_len
)
7516 memset(priv
->essid
, 0, IW_ESSID_MAX_SIZE
);
7518 memcpy(priv
->essid
, conf
->ssid
, conf
->ssid_len
);
7520 priv
->essid_len
= conf
->ssid_len
;
7521 spin_unlock_irqrestore(&priv
->lock
, flags
);
7523 IWL_DEBUG_MAC80211("leave\n");
7524 mutex_unlock(&priv
->mutex
);
7529 static void iwl4965_configure_filter(struct ieee80211_hw
*hw
,
7530 unsigned int changed_flags
,
7531 unsigned int *total_flags
,
7532 int mc_count
, struct dev_addr_list
*mc_list
)
7536 * see also iwl4965_connection_init_rx_config
7541 static void iwl4965_mac_remove_interface(struct ieee80211_hw
*hw
,
7542 struct ieee80211_if_init_conf
*conf
)
7544 struct iwl4965_priv
*priv
= hw
->priv
;
7546 IWL_DEBUG_MAC80211("enter\n");
7548 mutex_lock(&priv
->mutex
);
7550 if (iwl4965_is_ready_rf(priv
)) {
7551 iwl4965_scan_cancel_timeout(priv
, 100);
7552 cancel_delayed_work(&priv
->post_associate
);
7553 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
7554 iwl4965_commit_rxon(priv
);
7556 if (priv
->vif
== conf
->vif
) {
7558 memset(priv
->bssid
, 0, ETH_ALEN
);
7559 memset(priv
->essid
, 0, IW_ESSID_MAX_SIZE
);
7560 priv
->essid_len
= 0;
7562 mutex_unlock(&priv
->mutex
);
7564 IWL_DEBUG_MAC80211("leave\n");
7568 static void iwl4965_bss_info_changed(struct ieee80211_hw
*hw
,
7569 struct ieee80211_vif
*vif
,
7570 struct ieee80211_bss_conf
*bss_conf
,
7573 struct iwl4965_priv
*priv
= hw
->priv
;
7575 if (changes
& BSS_CHANGED_ERP_PREAMBLE
) {
7576 if (bss_conf
->use_short_preamble
)
7577 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_PREAMBLE_MSK
;
7579 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_PREAMBLE_MSK
;
7582 if (changes
& BSS_CHANGED_ERP_CTS_PROT
) {
7583 if (bss_conf
->use_cts_prot
&& (priv
->band
!= IEEE80211_BAND_5GHZ
))
7584 priv
->staging_rxon
.flags
|= RXON_FLG_TGG_PROTECT_MSK
;
7586 priv
->staging_rxon
.flags
&= ~RXON_FLG_TGG_PROTECT_MSK
;
7589 if (changes
& BSS_CHANGED_ASSOC
) {
7592 * do stuff instead of sniffing assoc resp
7596 if (iwl4965_is_associated(priv
))
7597 iwl4965_send_rxon_assoc(priv
);
7600 static int iwl4965_mac_hw_scan(struct ieee80211_hw
*hw
, u8
*ssid
, size_t len
)
7603 unsigned long flags
;
7604 struct iwl4965_priv
*priv
= hw
->priv
;
7606 IWL_DEBUG_MAC80211("enter\n");
7608 mutex_lock(&priv
->mutex
);
7609 spin_lock_irqsave(&priv
->lock
, flags
);
7611 if (!iwl4965_is_ready_rf(priv
)) {
7613 IWL_DEBUG_MAC80211("leave - not ready or exit pending\n");
7617 if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) { /* APs don't scan */
7619 IWL_ERROR("ERROR: APs don't scan\n");
7623 /* we don't schedule scan within next_scan_jiffies period */
7624 if (priv
->next_scan_jiffies
&&
7625 time_after(priv
->next_scan_jiffies
, jiffies
)) {
7629 /* if we just finished scan ask for delay */
7630 if (priv
->last_scan_jiffies
&& time_after(priv
->last_scan_jiffies
+
7631 IWL_DELAY_NEXT_SCAN
, jiffies
)) {
7636 IWL_DEBUG_SCAN("direct scan for %s [%d]\n ",
7637 iwl4965_escape_essid(ssid
, len
), (int)len
);
7639 priv
->one_direct_scan
= 1;
7640 priv
->direct_ssid_len
= (u8
)
7641 min((u8
) len
, (u8
) IW_ESSID_MAX_SIZE
);
7642 memcpy(priv
->direct_ssid
, ssid
, priv
->direct_ssid_len
);
7644 priv
->one_direct_scan
= 0;
7646 rc
= iwl4965_scan_initiate(priv
);
7648 IWL_DEBUG_MAC80211("leave\n");
7651 spin_unlock_irqrestore(&priv
->lock
, flags
);
7652 mutex_unlock(&priv
->mutex
);
7657 static int iwl4965_mac_set_key(struct ieee80211_hw
*hw
, enum set_key_cmd cmd
,
7658 const u8
*local_addr
, const u8
*addr
,
7659 struct ieee80211_key_conf
*key
)
7661 struct iwl4965_priv
*priv
= hw
->priv
;
7662 DECLARE_MAC_BUF(mac
);
7666 IWL_DEBUG_MAC80211("enter\n");
7668 if (!iwl4965_param_hwcrypto
) {
7669 IWL_DEBUG_MAC80211("leave - hwcrypto disabled\n");
7673 if (is_zero_ether_addr(addr
))
7674 /* only support pairwise keys */
7677 sta_id
= iwl4965_hw_find_station(priv
, addr
);
7678 if (sta_id
== IWL_INVALID_STATION
) {
7679 IWL_DEBUG_MAC80211("leave - %s not in station map.\n",
7680 print_mac(mac
, addr
));
7684 mutex_lock(&priv
->mutex
);
7686 iwl4965_scan_cancel_timeout(priv
, 100);
7690 rc
= iwl4965_update_sta_key_info(priv
, key
, sta_id
);
7692 iwl4965_set_rxon_hwcrypto(priv
, 1);
7693 iwl4965_commit_rxon(priv
);
7694 key
->hw_key_idx
= sta_id
;
7695 IWL_DEBUG_MAC80211("set_key success, using hwcrypto\n");
7696 key
->flags
|= IEEE80211_KEY_FLAG_GENERATE_IV
;
7700 rc
= iwl4965_clear_sta_key_info(priv
, sta_id
);
7702 iwl4965_set_rxon_hwcrypto(priv
, 0);
7703 iwl4965_commit_rxon(priv
);
7704 IWL_DEBUG_MAC80211("disable hwcrypto key\n");
7711 IWL_DEBUG_MAC80211("leave\n");
7712 mutex_unlock(&priv
->mutex
);
7717 static int iwl4965_mac_conf_tx(struct ieee80211_hw
*hw
, int queue
,
7718 const struct ieee80211_tx_queue_params
*params
)
7720 struct iwl4965_priv
*priv
= hw
->priv
;
7721 unsigned long flags
;
7724 IWL_DEBUG_MAC80211("enter\n");
7726 if (!iwl4965_is_ready_rf(priv
)) {
7727 IWL_DEBUG_MAC80211("leave - RF not ready\n");
7731 if (queue
>= AC_NUM
) {
7732 IWL_DEBUG_MAC80211("leave - queue >= AC_NUM %d\n", queue
);
7736 if (!priv
->qos_data
.qos_enable
) {
7737 priv
->qos_data
.qos_active
= 0;
7738 IWL_DEBUG_MAC80211("leave - qos not enabled\n");
7741 q
= AC_NUM
- 1 - queue
;
7743 spin_lock_irqsave(&priv
->lock
, flags
);
7745 priv
->qos_data
.def_qos_parm
.ac
[q
].cw_min
= cpu_to_le16(params
->cw_min
);
7746 priv
->qos_data
.def_qos_parm
.ac
[q
].cw_max
= cpu_to_le16(params
->cw_max
);
7747 priv
->qos_data
.def_qos_parm
.ac
[q
].aifsn
= params
->aifs
;
7748 priv
->qos_data
.def_qos_parm
.ac
[q
].edca_txop
=
7749 cpu_to_le16((params
->txop
* 32));
7751 priv
->qos_data
.def_qos_parm
.ac
[q
].reserved1
= 0;
7752 priv
->qos_data
.qos_active
= 1;
7754 spin_unlock_irqrestore(&priv
->lock
, flags
);
7756 mutex_lock(&priv
->mutex
);
7757 if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
)
7758 iwl4965_activate_qos(priv
, 1);
7759 else if (priv
->assoc_id
&& iwl4965_is_associated(priv
))
7760 iwl4965_activate_qos(priv
, 0);
7762 mutex_unlock(&priv
->mutex
);
7764 IWL_DEBUG_MAC80211("leave\n");
7768 static int iwl4965_mac_get_tx_stats(struct ieee80211_hw
*hw
,
7769 struct ieee80211_tx_queue_stats
*stats
)
7771 struct iwl4965_priv
*priv
= hw
->priv
;
7773 struct iwl4965_tx_queue
*txq
;
7774 struct iwl4965_queue
*q
;
7775 unsigned long flags
;
7777 IWL_DEBUG_MAC80211("enter\n");
7779 if (!iwl4965_is_ready_rf(priv
)) {
7780 IWL_DEBUG_MAC80211("leave - RF not ready\n");
7784 spin_lock_irqsave(&priv
->lock
, flags
);
7786 for (i
= 0; i
< AC_NUM
; i
++) {
7787 txq
= &priv
->txq
[i
];
7789 avail
= iwl4965_queue_space(q
);
7791 stats
->data
[i
].len
= q
->n_window
- avail
;
7792 stats
->data
[i
].limit
= q
->n_window
- q
->high_mark
;
7793 stats
->data
[i
].count
= q
->n_window
;
7796 spin_unlock_irqrestore(&priv
->lock
, flags
);
7798 IWL_DEBUG_MAC80211("leave\n");
7803 static int iwl4965_mac_get_stats(struct ieee80211_hw
*hw
,
7804 struct ieee80211_low_level_stats
*stats
)
7806 IWL_DEBUG_MAC80211("enter\n");
7807 IWL_DEBUG_MAC80211("leave\n");
7812 static u64
iwl4965_mac_get_tsf(struct ieee80211_hw
*hw
)
7814 IWL_DEBUG_MAC80211("enter\n");
7815 IWL_DEBUG_MAC80211("leave\n");
7820 static void iwl4965_mac_reset_tsf(struct ieee80211_hw
*hw
)
7822 struct iwl4965_priv
*priv
= hw
->priv
;
7823 unsigned long flags
;
7825 mutex_lock(&priv
->mutex
);
7826 IWL_DEBUG_MAC80211("enter\n");
7828 priv
->lq_mngr
.lq_ready
= 0;
7829 #ifdef CONFIG_IWL4965_HT
7830 spin_lock_irqsave(&priv
->lock
, flags
);
7831 memset(&priv
->current_ht_config
, 0, sizeof(struct iwl_ht_info
));
7832 spin_unlock_irqrestore(&priv
->lock
, flags
);
7833 #endif /* CONFIG_IWL4965_HT */
7835 iwl4965_reset_qos(priv
);
7837 cancel_delayed_work(&priv
->post_associate
);
7839 spin_lock_irqsave(&priv
->lock
, flags
);
7841 priv
->assoc_capability
= 0;
7842 priv
->call_post_assoc_from_beacon
= 0;
7843 priv
->assoc_station_added
= 0;
7845 /* new association get rid of ibss beacon skb */
7846 if (priv
->ibss_beacon
)
7847 dev_kfree_skb(priv
->ibss_beacon
);
7849 priv
->ibss_beacon
= NULL
;
7851 priv
->beacon_int
= priv
->hw
->conf
.beacon_int
;
7852 priv
->timestamp1
= 0;
7853 priv
->timestamp0
= 0;
7854 if ((priv
->iw_mode
== IEEE80211_IF_TYPE_STA
))
7855 priv
->beacon_int
= 0;
7857 spin_unlock_irqrestore(&priv
->lock
, flags
);
7859 if (!iwl4965_is_ready_rf(priv
)) {
7860 IWL_DEBUG_MAC80211("leave - not ready\n");
7861 mutex_unlock(&priv
->mutex
);
7865 /* we are restarting association process
7866 * clear RXON_FILTER_ASSOC_MSK bit
7868 if (priv
->iw_mode
!= IEEE80211_IF_TYPE_AP
) {
7869 iwl4965_scan_cancel_timeout(priv
, 100);
7870 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
7871 iwl4965_commit_rxon(priv
);
7874 /* Per mac80211.h: This is only used in IBSS mode... */
7875 if (priv
->iw_mode
!= IEEE80211_IF_TYPE_IBSS
) {
7877 IWL_DEBUG_MAC80211("leave - not in IBSS\n");
7878 mutex_unlock(&priv
->mutex
);
7882 priv
->only_active_channel
= 0;
7884 iwl4965_set_rate(priv
);
7886 mutex_unlock(&priv
->mutex
);
7888 IWL_DEBUG_MAC80211("leave\n");
7891 static int iwl4965_mac_beacon_update(struct ieee80211_hw
*hw
, struct sk_buff
*skb
,
7892 struct ieee80211_tx_control
*control
)
7894 struct iwl4965_priv
*priv
= hw
->priv
;
7895 unsigned long flags
;
7897 mutex_lock(&priv
->mutex
);
7898 IWL_DEBUG_MAC80211("enter\n");
7900 if (!iwl4965_is_ready_rf(priv
)) {
7901 IWL_DEBUG_MAC80211("leave - RF not ready\n");
7902 mutex_unlock(&priv
->mutex
);
7906 if (priv
->iw_mode
!= IEEE80211_IF_TYPE_IBSS
) {
7907 IWL_DEBUG_MAC80211("leave - not IBSS\n");
7908 mutex_unlock(&priv
->mutex
);
7912 spin_lock_irqsave(&priv
->lock
, flags
);
7914 if (priv
->ibss_beacon
)
7915 dev_kfree_skb(priv
->ibss_beacon
);
7917 priv
->ibss_beacon
= skb
;
7921 IWL_DEBUG_MAC80211("leave\n");
7922 spin_unlock_irqrestore(&priv
->lock
, flags
);
7924 iwl4965_reset_qos(priv
);
7926 queue_work(priv
->workqueue
, &priv
->post_associate
.work
);
7928 mutex_unlock(&priv
->mutex
);
7933 #ifdef CONFIG_IWL4965_HT
7935 static void iwl4965_ht_info_fill(struct ieee80211_conf
*conf
,
7936 struct iwl4965_priv
*priv
)
7938 struct iwl_ht_info
*iwl_conf
= &priv
->current_ht_config
;
7939 struct ieee80211_ht_info
*ht_conf
= &conf
->ht_conf
;
7940 struct ieee80211_ht_bss_info
*ht_bss_conf
= &conf
->ht_bss_conf
;
7942 IWL_DEBUG_MAC80211("enter: \n");
7944 if (!(conf
->flags
& IEEE80211_CONF_SUPPORT_HT_MODE
)) {
7945 iwl_conf
->is_ht
= 0;
7949 iwl_conf
->is_ht
= 1;
7950 priv
->ps_mode
= (u8
)((ht_conf
->cap
& IEEE80211_HT_CAP_MIMO_PS
) >> 2);
7952 if (ht_conf
->cap
& IEEE80211_HT_CAP_SGI_20
)
7953 iwl_conf
->sgf
|= 0x1;
7954 if (ht_conf
->cap
& IEEE80211_HT_CAP_SGI_40
)
7955 iwl_conf
->sgf
|= 0x2;
7957 iwl_conf
->is_green_field
= !!(ht_conf
->cap
& IEEE80211_HT_CAP_GRN_FLD
);
7958 iwl_conf
->max_amsdu_size
=
7959 !!(ht_conf
->cap
& IEEE80211_HT_CAP_MAX_AMSDU
);
7961 iwl_conf
->supported_chan_width
=
7962 !!(ht_conf
->cap
& IEEE80211_HT_CAP_SUP_WIDTH
);
7963 iwl_conf
->extension_chan_offset
=
7964 ht_bss_conf
->bss_cap
& IEEE80211_HT_IE_CHA_SEC_OFFSET
;
7965 /* If no above or below channel supplied disable FAT channel */
7966 if (iwl_conf
->extension_chan_offset
!= IWL_EXT_CHANNEL_OFFSET_ABOVE
&&
7967 iwl_conf
->extension_chan_offset
!= IWL_EXT_CHANNEL_OFFSET_BELOW
)
7968 iwl_conf
->supported_chan_width
= 0;
7970 iwl_conf
->tx_mimo_ps_mode
=
7971 (u8
)((ht_conf
->cap
& IEEE80211_HT_CAP_MIMO_PS
) >> 2);
7972 memcpy(iwl_conf
->supp_mcs_set
, ht_conf
->supp_mcs_set
, 16);
7974 iwl_conf
->control_channel
= ht_bss_conf
->primary_channel
;
7975 iwl_conf
->tx_chan_width
=
7976 !!(ht_bss_conf
->bss_cap
& IEEE80211_HT_IE_CHA_WIDTH
);
7977 iwl_conf
->ht_protection
=
7978 ht_bss_conf
->bss_op_mode
& IEEE80211_HT_IE_HT_PROTECTION
;
7979 iwl_conf
->non_GF_STA_present
=
7980 !!(ht_bss_conf
->bss_op_mode
& IEEE80211_HT_IE_NON_GF_STA_PRSNT
);
7982 IWL_DEBUG_MAC80211("control channel %d\n",
7983 iwl_conf
->control_channel
);
7984 IWL_DEBUG_MAC80211("leave\n");
7987 static int iwl4965_mac_conf_ht(struct ieee80211_hw
*hw
,
7988 struct ieee80211_conf
*conf
)
7990 struct iwl4965_priv
*priv
= hw
->priv
;
7992 IWL_DEBUG_MAC80211("enter: \n");
7994 iwl4965_ht_info_fill(conf
, priv
);
7995 iwl4965_set_rxon_chain(priv
);
7997 if (priv
&& priv
->assoc_id
&&
7998 (priv
->iw_mode
== IEEE80211_IF_TYPE_STA
)) {
7999 unsigned long flags
;
8001 spin_lock_irqsave(&priv
->lock
, flags
);
8002 if (priv
->beacon_int
)
8003 queue_work(priv
->workqueue
, &priv
->post_associate
.work
);
8005 priv
->call_post_assoc_from_beacon
= 1;
8006 spin_unlock_irqrestore(&priv
->lock
, flags
);
8009 IWL_DEBUG_MAC80211("leave:\n");
8013 #endif /*CONFIG_IWL4965_HT*/
8015 /*****************************************************************************
8019 *****************************************************************************/
8021 #ifdef CONFIG_IWL4965_DEBUG
8024 * The following adds a new attribute to the sysfs representation
8025 * of this device driver (i.e. a new file in /sys/bus/pci/drivers/iwl/)
8026 * used for controlling the debug level.
8028 * See the level definitions in iwl for details.
8031 static ssize_t
show_debug_level(struct device_driver
*d
, char *buf
)
8033 return sprintf(buf
, "0x%08X\n", iwl4965_debug_level
);
8035 static ssize_t
store_debug_level(struct device_driver
*d
,
8036 const char *buf
, size_t count
)
8038 char *p
= (char *)buf
;
8041 val
= simple_strtoul(p
, &p
, 0);
8043 printk(KERN_INFO DRV_NAME
8044 ": %s is not in hex or decimal form.\n", buf
);
8046 iwl4965_debug_level
= val
;
8048 return strnlen(buf
, count
);
8051 static DRIVER_ATTR(debug_level
, S_IWUSR
| S_IRUGO
,
8052 show_debug_level
, store_debug_level
);
8054 #endif /* CONFIG_IWL4965_DEBUG */
8056 static ssize_t
show_rf_kill(struct device
*d
,
8057 struct device_attribute
*attr
, char *buf
)
8060 * 0 - RF kill not enabled
8061 * 1 - SW based RF kill active (sysfs)
8062 * 2 - HW based RF kill active
8063 * 3 - Both HW and SW based RF kill active
8065 struct iwl4965_priv
*priv
= (struct iwl4965_priv
*)d
->driver_data
;
8066 int val
= (test_bit(STATUS_RF_KILL_SW
, &priv
->status
) ? 0x1 : 0x0) |
8067 (test_bit(STATUS_RF_KILL_HW
, &priv
->status
) ? 0x2 : 0x0);
8069 return sprintf(buf
, "%i\n", val
);
8072 static ssize_t
store_rf_kill(struct device
*d
,
8073 struct device_attribute
*attr
,
8074 const char *buf
, size_t count
)
8076 struct iwl4965_priv
*priv
= (struct iwl4965_priv
*)d
->driver_data
;
8078 mutex_lock(&priv
->mutex
);
8079 iwl4965_radio_kill_sw(priv
, buf
[0] == '1');
8080 mutex_unlock(&priv
->mutex
);
8085 static DEVICE_ATTR(rf_kill
, S_IWUSR
| S_IRUGO
, show_rf_kill
, store_rf_kill
);
8087 static ssize_t
show_temperature(struct device
*d
,
8088 struct device_attribute
*attr
, char *buf
)
8090 struct iwl4965_priv
*priv
= (struct iwl4965_priv
*)d
->driver_data
;
8092 if (!iwl4965_is_alive(priv
))
8095 return sprintf(buf
, "%d\n", iwl4965_hw_get_temperature(priv
));
8098 static DEVICE_ATTR(temperature
, S_IRUGO
, show_temperature
, NULL
);
8100 static ssize_t
show_rs_window(struct device
*d
,
8101 struct device_attribute
*attr
,
8104 struct iwl4965_priv
*priv
= d
->driver_data
;
8105 return iwl4965_fill_rs_info(priv
->hw
, buf
, IWL_AP_ID
);
8107 static DEVICE_ATTR(rs_window
, S_IRUGO
, show_rs_window
, NULL
);
8109 static ssize_t
show_tx_power(struct device
*d
,
8110 struct device_attribute
*attr
, char *buf
)
8112 struct iwl4965_priv
*priv
= (struct iwl4965_priv
*)d
->driver_data
;
8113 return sprintf(buf
, "%d\n", priv
->user_txpower_limit
);
8116 static ssize_t
store_tx_power(struct device
*d
,
8117 struct device_attribute
*attr
,
8118 const char *buf
, size_t count
)
8120 struct iwl4965_priv
*priv
= (struct iwl4965_priv
*)d
->driver_data
;
8121 char *p
= (char *)buf
;
8124 val
= simple_strtoul(p
, &p
, 10);
8126 printk(KERN_INFO DRV_NAME
8127 ": %s is not in decimal form.\n", buf
);
8129 iwl4965_hw_reg_set_txpower(priv
, val
);
8134 static DEVICE_ATTR(tx_power
, S_IWUSR
| S_IRUGO
, show_tx_power
, store_tx_power
);
8136 static ssize_t
show_flags(struct device
*d
,
8137 struct device_attribute
*attr
, char *buf
)
8139 struct iwl4965_priv
*priv
= (struct iwl4965_priv
*)d
->driver_data
;
8141 return sprintf(buf
, "0x%04X\n", priv
->active_rxon
.flags
);
8144 static ssize_t
store_flags(struct device
*d
,
8145 struct device_attribute
*attr
,
8146 const char *buf
, size_t count
)
8148 struct iwl4965_priv
*priv
= (struct iwl4965_priv
*)d
->driver_data
;
8149 u32 flags
= simple_strtoul(buf
, NULL
, 0);
8151 mutex_lock(&priv
->mutex
);
8152 if (le32_to_cpu(priv
->staging_rxon
.flags
) != flags
) {
8153 /* Cancel any currently running scans... */
8154 if (iwl4965_scan_cancel_timeout(priv
, 100))
8155 IWL_WARNING("Could not cancel scan.\n");
8157 IWL_DEBUG_INFO("Committing rxon.flags = 0x%04X\n",
8159 priv
->staging_rxon
.flags
= cpu_to_le32(flags
);
8160 iwl4965_commit_rxon(priv
);
8163 mutex_unlock(&priv
->mutex
);
8168 static DEVICE_ATTR(flags
, S_IWUSR
| S_IRUGO
, show_flags
, store_flags
);
8170 static ssize_t
show_filter_flags(struct device
*d
,
8171 struct device_attribute
*attr
, char *buf
)
8173 struct iwl4965_priv
*priv
= (struct iwl4965_priv
*)d
->driver_data
;
8175 return sprintf(buf
, "0x%04X\n",
8176 le32_to_cpu(priv
->active_rxon
.filter_flags
));
8179 static ssize_t
store_filter_flags(struct device
*d
,
8180 struct device_attribute
*attr
,
8181 const char *buf
, size_t count
)
8183 struct iwl4965_priv
*priv
= (struct iwl4965_priv
*)d
->driver_data
;
8184 u32 filter_flags
= simple_strtoul(buf
, NULL
, 0);
8186 mutex_lock(&priv
->mutex
);
8187 if (le32_to_cpu(priv
->staging_rxon
.filter_flags
) != filter_flags
) {
8188 /* Cancel any currently running scans... */
8189 if (iwl4965_scan_cancel_timeout(priv
, 100))
8190 IWL_WARNING("Could not cancel scan.\n");
8192 IWL_DEBUG_INFO("Committing rxon.filter_flags = "
8193 "0x%04X\n", filter_flags
);
8194 priv
->staging_rxon
.filter_flags
=
8195 cpu_to_le32(filter_flags
);
8196 iwl4965_commit_rxon(priv
);
8199 mutex_unlock(&priv
->mutex
);
8204 static DEVICE_ATTR(filter_flags
, S_IWUSR
| S_IRUGO
, show_filter_flags
,
8205 store_filter_flags
);
8207 #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
8209 static ssize_t
show_measurement(struct device
*d
,
8210 struct device_attribute
*attr
, char *buf
)
8212 struct iwl4965_priv
*priv
= dev_get_drvdata(d
);
8213 struct iwl4965_spectrum_notification measure_report
;
8214 u32 size
= sizeof(measure_report
), len
= 0, ofs
= 0;
8215 u8
*data
= (u8
*) & measure_report
;
8216 unsigned long flags
;
8218 spin_lock_irqsave(&priv
->lock
, flags
);
8219 if (!(priv
->measurement_status
& MEASUREMENT_READY
)) {
8220 spin_unlock_irqrestore(&priv
->lock
, flags
);
8223 memcpy(&measure_report
, &priv
->measure_report
, size
);
8224 priv
->measurement_status
= 0;
8225 spin_unlock_irqrestore(&priv
->lock
, flags
);
8227 while (size
&& (PAGE_SIZE
- len
)) {
8228 hex_dump_to_buffer(data
+ ofs
, size
, 16, 1, buf
+ len
,
8229 PAGE_SIZE
- len
, 1);
8231 if (PAGE_SIZE
- len
)
8235 size
-= min(size
, 16U);
8241 static ssize_t
store_measurement(struct device
*d
,
8242 struct device_attribute
*attr
,
8243 const char *buf
, size_t count
)
8245 struct iwl4965_priv
*priv
= dev_get_drvdata(d
);
8246 struct ieee80211_measurement_params params
= {
8247 .channel
= le16_to_cpu(priv
->active_rxon
.channel
),
8248 .start_time
= cpu_to_le64(priv
->last_tsf
),
8249 .duration
= cpu_to_le16(1),
8251 u8 type
= IWL_MEASURE_BASIC
;
8257 strncpy(buffer
, buf
, min(sizeof(buffer
), count
));
8258 channel
= simple_strtoul(p
, NULL
, 0);
8260 params
.channel
= channel
;
8263 while (*p
&& *p
!= ' ')
8266 type
= simple_strtoul(p
+ 1, NULL
, 0);
8269 IWL_DEBUG_INFO("Invoking measurement of type %d on "
8270 "channel %d (for '%s')\n", type
, params
.channel
, buf
);
8271 iwl4965_get_measurement(priv
, ¶ms
, type
);
8276 static DEVICE_ATTR(measurement
, S_IRUSR
| S_IWUSR
,
8277 show_measurement
, store_measurement
);
8278 #endif /* CONFIG_IWL4965_SPECTRUM_MEASUREMENT */
8280 static ssize_t
store_retry_rate(struct device
*d
,
8281 struct device_attribute
*attr
,
8282 const char *buf
, size_t count
)
8284 struct iwl4965_priv
*priv
= dev_get_drvdata(d
);
8286 priv
->retry_rate
= simple_strtoul(buf
, NULL
, 0);
8287 if (priv
->retry_rate
<= 0)
8288 priv
->retry_rate
= 1;
8293 static ssize_t
show_retry_rate(struct device
*d
,
8294 struct device_attribute
*attr
, char *buf
)
8296 struct iwl4965_priv
*priv
= dev_get_drvdata(d
);
8297 return sprintf(buf
, "%d", priv
->retry_rate
);
8300 static DEVICE_ATTR(retry_rate
, S_IWUSR
| S_IRUSR
, show_retry_rate
,
8303 static ssize_t
store_power_level(struct device
*d
,
8304 struct device_attribute
*attr
,
8305 const char *buf
, size_t count
)
8307 struct iwl4965_priv
*priv
= dev_get_drvdata(d
);
8311 mode
= simple_strtoul(buf
, NULL
, 0);
8312 mutex_lock(&priv
->mutex
);
8314 if (!iwl4965_is_ready(priv
)) {
8319 if ((mode
< 1) || (mode
> IWL_POWER_LIMIT
) || (mode
== IWL_POWER_AC
))
8320 mode
= IWL_POWER_AC
;
8322 mode
|= IWL_POWER_ENABLED
;
8324 if (mode
!= priv
->power_mode
) {
8325 rc
= iwl4965_send_power_mode(priv
, IWL_POWER_LEVEL(mode
));
8327 IWL_DEBUG_MAC80211("failed setting power mode.\n");
8330 priv
->power_mode
= mode
;
8336 mutex_unlock(&priv
->mutex
);
8340 #define MAX_WX_STRING 80
8342 /* Values are in microsecond */
8343 static const s32 timeout_duration
[] = {
8350 static const s32 period_duration
[] = {
8358 static ssize_t
show_power_level(struct device
*d
,
8359 struct device_attribute
*attr
, char *buf
)
8361 struct iwl4965_priv
*priv
= dev_get_drvdata(d
);
8362 int level
= IWL_POWER_LEVEL(priv
->power_mode
);
8365 p
+= sprintf(p
, "%d ", level
);
8367 case IWL_POWER_MODE_CAM
:
8369 p
+= sprintf(p
, "(AC)");
8371 case IWL_POWER_BATTERY
:
8372 p
+= sprintf(p
, "(BATTERY)");
8376 "(Timeout %dms, Period %dms)",
8377 timeout_duration
[level
- 1] / 1000,
8378 period_duration
[level
- 1] / 1000);
8381 if (!(priv
->power_mode
& IWL_POWER_ENABLED
))
8382 p
+= sprintf(p
, " OFF\n");
8384 p
+= sprintf(p
, " \n");
8386 return (p
- buf
+ 1);
8390 static DEVICE_ATTR(power_level
, S_IWUSR
| S_IRUSR
, show_power_level
,
8393 static ssize_t
show_channels(struct device
*d
,
8394 struct device_attribute
*attr
, char *buf
)
8396 /* all this shit doesn't belong into sysfs anyway */
8400 static DEVICE_ATTR(channels
, S_IRUSR
, show_channels
, NULL
);
8402 static ssize_t
show_statistics(struct device
*d
,
8403 struct device_attribute
*attr
, char *buf
)
8405 struct iwl4965_priv
*priv
= dev_get_drvdata(d
);
8406 u32 size
= sizeof(struct iwl4965_notif_statistics
);
8407 u32 len
= 0, ofs
= 0;
8408 u8
*data
= (u8
*) & priv
->statistics
;
8411 if (!iwl4965_is_alive(priv
))
8414 mutex_lock(&priv
->mutex
);
8415 rc
= iwl4965_send_statistics_request(priv
);
8416 mutex_unlock(&priv
->mutex
);
8420 "Error sending statistics request: 0x%08X\n", rc
);
8424 while (size
&& (PAGE_SIZE
- len
)) {
8425 hex_dump_to_buffer(data
+ ofs
, size
, 16, 1, buf
+ len
,
8426 PAGE_SIZE
- len
, 1);
8428 if (PAGE_SIZE
- len
)
8432 size
-= min(size
, 16U);
8438 static DEVICE_ATTR(statistics
, S_IRUGO
, show_statistics
, NULL
);
8440 static ssize_t
show_antenna(struct device
*d
,
8441 struct device_attribute
*attr
, char *buf
)
8443 struct iwl4965_priv
*priv
= dev_get_drvdata(d
);
8445 if (!iwl4965_is_alive(priv
))
8448 return sprintf(buf
, "%d\n", priv
->antenna
);
8451 static ssize_t
store_antenna(struct device
*d
,
8452 struct device_attribute
*attr
,
8453 const char *buf
, size_t count
)
8456 struct iwl4965_priv
*priv
= dev_get_drvdata(d
);
8461 if (sscanf(buf
, "%1i", &ant
) != 1) {
8462 IWL_DEBUG_INFO("not in hex or decimal form.\n");
8466 if ((ant
>= 0) && (ant
<= 2)) {
8467 IWL_DEBUG_INFO("Setting antenna select to %d.\n", ant
);
8468 priv
->antenna
= (enum iwl4965_antenna
)ant
;
8470 IWL_DEBUG_INFO("Bad antenna select value %d.\n", ant
);
8476 static DEVICE_ATTR(antenna
, S_IWUSR
| S_IRUGO
, show_antenna
, store_antenna
);
8478 static ssize_t
show_status(struct device
*d
,
8479 struct device_attribute
*attr
, char *buf
)
8481 struct iwl4965_priv
*priv
= (struct iwl4965_priv
*)d
->driver_data
;
8482 if (!iwl4965_is_alive(priv
))
8484 return sprintf(buf
, "0x%08x\n", (int)priv
->status
);
8487 static DEVICE_ATTR(status
, S_IRUGO
, show_status
, NULL
);
8489 static ssize_t
dump_error_log(struct device
*d
,
8490 struct device_attribute
*attr
,
8491 const char *buf
, size_t count
)
8493 char *p
= (char *)buf
;
8496 iwl4965_dump_nic_error_log((struct iwl4965_priv
*)d
->driver_data
);
8498 return strnlen(buf
, count
);
8501 static DEVICE_ATTR(dump_errors
, S_IWUSR
, NULL
, dump_error_log
);
8503 static ssize_t
dump_event_log(struct device
*d
,
8504 struct device_attribute
*attr
,
8505 const char *buf
, size_t count
)
8507 char *p
= (char *)buf
;
8510 iwl4965_dump_nic_event_log((struct iwl4965_priv
*)d
->driver_data
);
8512 return strnlen(buf
, count
);
8515 static DEVICE_ATTR(dump_events
, S_IWUSR
, NULL
, dump_event_log
);
8517 /*****************************************************************************
8519 * driver setup and teardown
8521 *****************************************************************************/
8523 static void iwl4965_setup_deferred_work(struct iwl4965_priv
*priv
)
8525 priv
->workqueue
= create_workqueue(DRV_NAME
);
8527 init_waitqueue_head(&priv
->wait_command_queue
);
8529 INIT_WORK(&priv
->up
, iwl4965_bg_up
);
8530 INIT_WORK(&priv
->restart
, iwl4965_bg_restart
);
8531 INIT_WORK(&priv
->rx_replenish
, iwl4965_bg_rx_replenish
);
8532 INIT_WORK(&priv
->scan_completed
, iwl4965_bg_scan_completed
);
8533 INIT_WORK(&priv
->request_scan
, iwl4965_bg_request_scan
);
8534 INIT_WORK(&priv
->abort_scan
, iwl4965_bg_abort_scan
);
8535 INIT_WORK(&priv
->rf_kill
, iwl4965_bg_rf_kill
);
8536 INIT_WORK(&priv
->beacon_update
, iwl4965_bg_beacon_update
);
8537 INIT_DELAYED_WORK(&priv
->post_associate
, iwl4965_bg_post_associate
);
8538 INIT_DELAYED_WORK(&priv
->init_alive_start
, iwl4965_bg_init_alive_start
);
8539 INIT_DELAYED_WORK(&priv
->alive_start
, iwl4965_bg_alive_start
);
8540 INIT_DELAYED_WORK(&priv
->scan_check
, iwl4965_bg_scan_check
);
8542 iwl4965_hw_setup_deferred_work(priv
);
8544 tasklet_init(&priv
->irq_tasklet
, (void (*)(unsigned long))
8545 iwl4965_irq_tasklet
, (unsigned long)priv
);
8548 static void iwl4965_cancel_deferred_work(struct iwl4965_priv
*priv
)
8550 iwl4965_hw_cancel_deferred_work(priv
);
8552 cancel_delayed_work_sync(&priv
->init_alive_start
);
8553 cancel_delayed_work(&priv
->scan_check
);
8554 cancel_delayed_work(&priv
->alive_start
);
8555 cancel_delayed_work(&priv
->post_associate
);
8556 cancel_work_sync(&priv
->beacon_update
);
8559 static struct attribute
*iwl4965_sysfs_entries
[] = {
8560 &dev_attr_antenna
.attr
,
8561 &dev_attr_channels
.attr
,
8562 &dev_attr_dump_errors
.attr
,
8563 &dev_attr_dump_events
.attr
,
8564 &dev_attr_flags
.attr
,
8565 &dev_attr_filter_flags
.attr
,
8566 #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
8567 &dev_attr_measurement
.attr
,
8569 &dev_attr_power_level
.attr
,
8570 &dev_attr_retry_rate
.attr
,
8571 &dev_attr_rf_kill
.attr
,
8572 &dev_attr_rs_window
.attr
,
8573 &dev_attr_statistics
.attr
,
8574 &dev_attr_status
.attr
,
8575 &dev_attr_temperature
.attr
,
8576 &dev_attr_tx_power
.attr
,
8581 static struct attribute_group iwl4965_attribute_group
= {
8582 .name
= NULL
, /* put in device directory */
8583 .attrs
= iwl4965_sysfs_entries
,
8586 static struct ieee80211_ops iwl4965_hw_ops
= {
8587 .tx
= iwl4965_mac_tx
,
8588 .start
= iwl4965_mac_start
,
8589 .stop
= iwl4965_mac_stop
,
8590 .add_interface
= iwl4965_mac_add_interface
,
8591 .remove_interface
= iwl4965_mac_remove_interface
,
8592 .config
= iwl4965_mac_config
,
8593 .config_interface
= iwl4965_mac_config_interface
,
8594 .configure_filter
= iwl4965_configure_filter
,
8595 .set_key
= iwl4965_mac_set_key
,
8596 .get_stats
= iwl4965_mac_get_stats
,
8597 .get_tx_stats
= iwl4965_mac_get_tx_stats
,
8598 .conf_tx
= iwl4965_mac_conf_tx
,
8599 .get_tsf
= iwl4965_mac_get_tsf
,
8600 .reset_tsf
= iwl4965_mac_reset_tsf
,
8601 .beacon_update
= iwl4965_mac_beacon_update
,
8602 .bss_info_changed
= iwl4965_bss_info_changed
,
8603 #ifdef CONFIG_IWL4965_HT
8604 .conf_ht
= iwl4965_mac_conf_ht
,
8605 .ampdu_action
= iwl4965_mac_ampdu_action
,
8606 #endif /* CONFIG_IWL4965_HT */
8607 .hw_scan
= iwl4965_mac_hw_scan
8610 static int iwl4965_pci_probe(struct pci_dev
*pdev
, const struct pci_device_id
*ent
)
8613 struct iwl4965_priv
*priv
;
8614 struct ieee80211_hw
*hw
;
8616 DECLARE_MAC_BUF(mac
);
8618 /* Disabling hardware scan means that mac80211 will perform scans
8619 * "the hard way", rather than using device's scan. */
8620 if (iwl4965_param_disable_hw_scan
) {
8621 IWL_DEBUG_INFO("Disabling hw_scan\n");
8622 iwl4965_hw_ops
.hw_scan
= NULL
;
8625 if ((iwl4965_param_queues_num
> IWL_MAX_NUM_QUEUES
) ||
8626 (iwl4965_param_queues_num
< IWL_MIN_NUM_QUEUES
)) {
8627 IWL_ERROR("invalid queues_num, should be between %d and %d\n",
8628 IWL_MIN_NUM_QUEUES
, IWL_MAX_NUM_QUEUES
);
8633 /* mac80211 allocates memory for this device instance, including
8634 * space for this driver's private structure */
8635 hw
= ieee80211_alloc_hw(sizeof(struct iwl4965_priv
), &iwl4965_hw_ops
);
8637 IWL_ERROR("Can not allocate network device\n");
8641 SET_IEEE80211_DEV(hw
, &pdev
->dev
);
8643 hw
->rate_control_algorithm
= "iwl-4965-rs";
8645 IWL_DEBUG_INFO("*** LOAD DRIVER ***\n");
8649 priv
->pci_dev
= pdev
;
8650 priv
->antenna
= (enum iwl4965_antenna
)iwl4965_param_antenna
;
8651 #ifdef CONFIG_IWL4965_DEBUG
8652 iwl4965_debug_level
= iwl4965_param_debug
;
8653 atomic_set(&priv
->restrict_refcnt
, 0);
8655 priv
->retry_rate
= 1;
8657 priv
->ibss_beacon
= NULL
;
8659 /* Tell mac80211 and its clients (e.g. Wireless Extensions)
8660 * the range of signal quality values that we'll provide.
8661 * Negative values for level/noise indicate that we'll provide dBm.
8662 * For WE, at least, non-0 values here *enable* display of values
8663 * in app (iwconfig). */
8664 hw
->max_rssi
= -20; /* signal level, negative indicates dBm */
8665 hw
->max_noise
= -20; /* noise level, negative indicates dBm */
8666 hw
->max_signal
= 100; /* link quality indication (%) */
8668 /* Tell mac80211 our Tx characteristics */
8669 hw
->flags
= IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE
;
8671 /* Default value; 4 EDCA QOS priorities */
8673 #ifdef CONFIG_IWL4965_HT
8674 /* Enhanced value; more queues, to support 11n aggregation */
8676 #endif /* CONFIG_IWL4965_HT */
8678 spin_lock_init(&priv
->lock
);
8679 spin_lock_init(&priv
->power_data
.lock
);
8680 spin_lock_init(&priv
->sta_lock
);
8681 spin_lock_init(&priv
->hcmd_lock
);
8682 spin_lock_init(&priv
->lq_mngr
.lock
);
8684 for (i
= 0; i
< IWL_IBSS_MAC_HASH_SIZE
; i
++)
8685 INIT_LIST_HEAD(&priv
->ibss_mac_hash
[i
]);
8687 INIT_LIST_HEAD(&priv
->free_frames
);
8689 mutex_init(&priv
->mutex
);
8690 if (pci_enable_device(pdev
)) {
8692 goto out_ieee80211_free_hw
;
8695 pci_set_master(pdev
);
8697 /* Clear the driver's (not device's) station table */
8698 iwl4965_clear_stations_table(priv
);
8700 priv
->data_retry_limit
= -1;
8701 priv
->ieee_channels
= NULL
;
8702 priv
->ieee_rates
= NULL
;
8703 priv
->band
= IEEE80211_BAND_2GHZ
;
8705 err
= pci_set_dma_mask(pdev
, DMA_32BIT_MASK
);
8707 err
= pci_set_consistent_dma_mask(pdev
, DMA_32BIT_MASK
);
8709 printk(KERN_WARNING DRV_NAME
": No suitable DMA available.\n");
8710 goto out_pci_disable_device
;
8713 pci_set_drvdata(pdev
, priv
);
8714 err
= pci_request_regions(pdev
, DRV_NAME
);
8716 goto out_pci_disable_device
;
8718 /* We disable the RETRY_TIMEOUT register (0x41) to keep
8719 * PCI Tx retries from interfering with C3 CPU state */
8720 pci_write_config_byte(pdev
, 0x41, 0x00);
8722 priv
->hw_base
= pci_iomap(pdev
, 0, 0);
8723 if (!priv
->hw_base
) {
8725 goto out_pci_release_regions
;
8728 IWL_DEBUG_INFO("pci_resource_len = 0x%08llx\n",
8729 (unsigned long long) pci_resource_len(pdev
, 0));
8730 IWL_DEBUG_INFO("pci_resource_base = %p\n", priv
->hw_base
);
8732 /* Initialize module parameter values here */
8734 /* Disable radio (SW RF KILL) via parameter when loading driver */
8735 if (iwl4965_param_disable
) {
8736 set_bit(STATUS_RF_KILL_SW
, &priv
->status
);
8737 IWL_DEBUG_INFO("Radio disabled.\n");
8740 priv
->iw_mode
= IEEE80211_IF_TYPE_STA
;
8743 priv
->use_ant_b_for_management_frame
= 1; /* start with ant B */
8744 priv
->valid_antenna
= 0x7; /* assume all 3 connected */
8745 priv
->ps_mode
= IWL_MIMO_PS_NONE
;
8747 /* Choose which receivers/antennas to use */
8748 iwl4965_set_rxon_chain(priv
);
8750 printk(KERN_INFO DRV_NAME
8751 ": Detected Intel Wireless WiFi Link 4965AGN\n");
8753 /* Device-specific setup */
8754 if (iwl4965_hw_set_hw_setting(priv
)) {
8755 IWL_ERROR("failed to set hw settings\n");
8759 if (iwl4965_param_qos_enable
)
8760 priv
->qos_data
.qos_enable
= 1;
8762 iwl4965_reset_qos(priv
);
8764 priv
->qos_data
.qos_active
= 0;
8765 priv
->qos_data
.qos_cap
.val
= 0;
8767 iwl4965_set_rxon_channel(priv
, IEEE80211_BAND_2GHZ
, 6);
8768 iwl4965_setup_deferred_work(priv
);
8769 iwl4965_setup_rx_handlers(priv
);
8771 priv
->rates_mask
= IWL_RATES_MASK
;
8772 /* If power management is turned on, default to AC mode */
8773 priv
->power_mode
= IWL_POWER_AC
;
8774 priv
->user_txpower_limit
= IWL_DEFAULT_TX_POWER
;
8776 iwl4965_disable_interrupts(priv
);
8778 err
= sysfs_create_group(&pdev
->dev
.kobj
, &iwl4965_attribute_group
);
8780 IWL_ERROR("failed to create sysfs device attributes\n");
8781 goto out_release_irq
;
8785 iwl4965_set_bit(priv
, CSR_GIO_CHICKEN_BITS
,
8786 CSR_GIO_CHICKEN_BITS_REG_BIT_DIS_L0S_EXIT_TIMER
);
8788 iwl4965_set_bit(priv
, CSR_GP_CNTRL
, CSR_GP_CNTRL_REG_FLAG_INIT_DONE
);
8789 err
= iwl4965_poll_bit(priv
, CSR_GP_CNTRL
,
8790 CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY
,
8791 CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY
, 25000);
8793 IWL_DEBUG_INFO("Failed to init the card\n");
8794 goto out_remove_sysfs
;
8796 /* Read the EEPROM */
8797 err
= iwl4965_eeprom_init(priv
);
8799 IWL_ERROR("Unable to init EEPROM\n");
8800 goto out_remove_sysfs
;
8802 /* MAC Address location in EEPROM same for 3945/4965 */
8803 get_eeprom_mac(priv
, priv
->mac_addr
);
8804 IWL_DEBUG_INFO("MAC address: %s\n", print_mac(mac
, priv
->mac_addr
));
8805 SET_IEEE80211_PERM_ADDR(priv
->hw
, priv
->mac_addr
);
8807 err
= iwl4965_init_channel_map(priv
);
8809 IWL_ERROR("initializing regulatory failed: %d\n", err
);
8810 goto out_remove_sysfs
;
8813 err
= iwl4965_init_geos(priv
);
8815 IWL_ERROR("initializing geos failed: %d\n", err
);
8816 goto out_free_channel_map
;
8819 iwl4965_rate_control_register(priv
->hw
);
8820 err
= ieee80211_register_hw(priv
->hw
);
8822 IWL_ERROR("Failed to register network device (error %d)\n", err
);
8826 priv
->hw
->conf
.beacon_int
= 100;
8827 priv
->mac80211_registered
= 1;
8828 pci_save_state(pdev
);
8829 pci_disable_device(pdev
);
8834 iwl4965_free_geos(priv
);
8835 out_free_channel_map
:
8836 iwl4965_free_channel_map(priv
);
8838 sysfs_remove_group(&pdev
->dev
.kobj
, &iwl4965_attribute_group
);
8841 destroy_workqueue(priv
->workqueue
);
8842 priv
->workqueue
= NULL
;
8843 iwl4965_unset_hw_setting(priv
);
8846 pci_iounmap(pdev
, priv
->hw_base
);
8847 out_pci_release_regions
:
8848 pci_release_regions(pdev
);
8849 out_pci_disable_device
:
8850 pci_disable_device(pdev
);
8851 pci_set_drvdata(pdev
, NULL
);
8852 out_ieee80211_free_hw
:
8853 ieee80211_free_hw(priv
->hw
);
8858 static void iwl4965_pci_remove(struct pci_dev
*pdev
)
8860 struct iwl4965_priv
*priv
= pci_get_drvdata(pdev
);
8861 struct list_head
*p
, *q
;
8867 IWL_DEBUG_INFO("*** UNLOAD DRIVER ***\n");
8869 set_bit(STATUS_EXIT_PENDING
, &priv
->status
);
8873 /* Free MAC hash list for ADHOC */
8874 for (i
= 0; i
< IWL_IBSS_MAC_HASH_SIZE
; i
++) {
8875 list_for_each_safe(p
, q
, &priv
->ibss_mac_hash
[i
]) {
8877 kfree(list_entry(p
, struct iwl4965_ibss_seq
, list
));
8881 sysfs_remove_group(&pdev
->dev
.kobj
, &iwl4965_attribute_group
);
8883 iwl4965_dealloc_ucode_pci(priv
);
8886 iwl4965_rx_queue_free(priv
, &priv
->rxq
);
8887 iwl4965_hw_txq_ctx_free(priv
);
8889 iwl4965_unset_hw_setting(priv
);
8890 iwl4965_clear_stations_table(priv
);
8892 if (priv
->mac80211_registered
) {
8893 ieee80211_unregister_hw(priv
->hw
);
8894 iwl4965_rate_control_unregister(priv
->hw
);
8897 /*netif_stop_queue(dev); */
8898 flush_workqueue(priv
->workqueue
);
8900 /* ieee80211_unregister_hw calls iwl4965_mac_stop, which flushes
8901 * priv->workqueue... so we can't take down the workqueue
8903 destroy_workqueue(priv
->workqueue
);
8904 priv
->workqueue
= NULL
;
8906 pci_iounmap(pdev
, priv
->hw_base
);
8907 pci_release_regions(pdev
);
8908 pci_disable_device(pdev
);
8909 pci_set_drvdata(pdev
, NULL
);
8911 iwl4965_free_channel_map(priv
);
8912 iwl4965_free_geos(priv
);
8914 if (priv
->ibss_beacon
)
8915 dev_kfree_skb(priv
->ibss_beacon
);
8917 ieee80211_free_hw(priv
->hw
);
8922 static int iwl4965_pci_suspend(struct pci_dev
*pdev
, pm_message_t state
)
8924 struct iwl4965_priv
*priv
= pci_get_drvdata(pdev
);
8926 if (priv
->is_open
) {
8927 set_bit(STATUS_IN_SUSPEND
, &priv
->status
);
8928 iwl4965_mac_stop(priv
->hw
);
8932 pci_set_power_state(pdev
, PCI_D3hot
);
8937 static int iwl4965_pci_resume(struct pci_dev
*pdev
)
8939 struct iwl4965_priv
*priv
= pci_get_drvdata(pdev
);
8941 pci_set_power_state(pdev
, PCI_D0
);
8944 iwl4965_mac_start(priv
->hw
);
8946 clear_bit(STATUS_IN_SUSPEND
, &priv
->status
);
8950 #endif /* CONFIG_PM */
8952 /*****************************************************************************
8954 * driver and module entry point
8956 *****************************************************************************/
8958 static struct pci_driver iwl4965_driver
= {
8960 .id_table
= iwl4965_hw_card_ids
,
8961 .probe
= iwl4965_pci_probe
,
8962 .remove
= __devexit_p(iwl4965_pci_remove
),
8964 .suspend
= iwl4965_pci_suspend
,
8965 .resume
= iwl4965_pci_resume
,
8969 static int __init
iwl4965_init(void)
8973 printk(KERN_INFO DRV_NAME
": " DRV_DESCRIPTION
", " DRV_VERSION
"\n");
8974 printk(KERN_INFO DRV_NAME
": " DRV_COPYRIGHT
"\n");
8975 ret
= pci_register_driver(&iwl4965_driver
);
8977 IWL_ERROR("Unable to initialize PCI module\n");
8980 #ifdef CONFIG_IWL4965_DEBUG
8981 ret
= driver_create_file(&iwl4965_driver
.driver
, &driver_attr_debug_level
);
8983 IWL_ERROR("Unable to create driver sysfs file\n");
8984 pci_unregister_driver(&iwl4965_driver
);
8992 static void __exit
iwl4965_exit(void)
8994 #ifdef CONFIG_IWL4965_DEBUG
8995 driver_remove_file(&iwl4965_driver
.driver
, &driver_attr_debug_level
);
8997 pci_unregister_driver(&iwl4965_driver
);
9000 module_param_named(antenna
, iwl4965_param_antenna
, int, 0444);
9001 MODULE_PARM_DESC(antenna
, "select antenna (1=Main, 2=Aux, default 0 [both])");
9002 module_param_named(disable
, iwl4965_param_disable
, int, 0444);
9003 MODULE_PARM_DESC(disable
, "manually disable the radio (default 0 [radio on])");
9004 module_param_named(hwcrypto
, iwl4965_param_hwcrypto
, int, 0444);
9005 MODULE_PARM_DESC(hwcrypto
,
9006 "using hardware crypto engine (default 0 [software])\n");
9007 module_param_named(debug
, iwl4965_param_debug
, int, 0444);
9008 MODULE_PARM_DESC(debug
, "debug output mask");
9009 module_param_named(disable_hw_scan
, iwl4965_param_disable_hw_scan
, int, 0444);
9010 MODULE_PARM_DESC(disable_hw_scan
, "disable hardware scanning (default 0)");
9012 module_param_named(queues_num
, iwl4965_param_queues_num
, int, 0444);
9013 MODULE_PARM_DESC(queues_num
, "number of hw queues.");
9016 module_param_named(qos_enable
, iwl4965_param_qos_enable
, int, 0444);
9017 MODULE_PARM_DESC(qos_enable
, "enable all QoS functionality");
9018 module_param_named(amsdu_size_8K
, iwl4965_param_amsdu_size_8K
, int, 0444);
9019 MODULE_PARM_DESC(amsdu_size_8K
, "enable 8K amsdu size");
9021 module_exit(iwl4965_exit
);
9022 module_init(iwl4965_init
);