1 /******************************************************************************
3 * Copyright(c) 2003 - 2008 Intel Corporation. All rights reserved.
5 * Portions of this file are derived from the ipw3945 project, as well
6 * as portions of the ieee80211 subsystem header files.
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of version 2 of the GNU General Public License as
10 * published by the Free Software Foundation.
12 * This program is distributed in the hope that it will be useful, but WITHOUT
13 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
17 * You should have received a copy of the GNU General Public License along with
18 * this program; if not, write to the Free Software Foundation, Inc.,
19 * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
21 * The full GNU General Public License is included in this distribution in the
22 * file called LICENSE.
24 * Contact Information:
25 * Intel Linux Wireless <ilw@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/init.h>
33 #include <linux/pci.h>
34 #include <linux/dma-mapping.h>
35 #include <linux/delay.h>
36 #include <linux/skbuff.h>
37 #include <linux/netdevice.h>
38 #include <linux/wireless.h>
39 #include <linux/firmware.h>
40 #include <linux/etherdevice.h>
41 #include <linux/if_arp.h>
43 #include <net/ieee80211_radiotap.h>
44 #include <net/lib80211.h>
45 #include <net/mac80211.h>
47 #include <asm/div64.h>
49 #define DRV_NAME "iwl3945"
51 #include "iwl-commands.h"
53 #include "iwl-3945-fh.h"
54 #include "iwl-helpers.h"
58 static int iwl3945_tx_queue_update_write_ptr(struct iwl_priv
*priv
,
59 struct iwl3945_tx_queue
*txq
);
62 * module name, copyright, version, etc.
65 #define DRV_DESCRIPTION \
66 "Intel(R) PRO/Wireless 3945ABG/BG Network Connection driver for Linux"
68 #ifdef CONFIG_IWL3945_DEBUG
74 #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT
80 #define IWL39_VERSION "1.2.26k" VD VS
81 #define DRV_COPYRIGHT "Copyright(c) 2003-2008 Intel Corporation"
82 #define DRV_AUTHOR "<ilw@linux.intel.com>"
83 #define DRV_VERSION IWL39_VERSION
86 MODULE_DESCRIPTION(DRV_DESCRIPTION
);
87 MODULE_VERSION(DRV_VERSION
);
88 MODULE_AUTHOR(DRV_COPYRIGHT
" " DRV_AUTHOR
);
89 MODULE_LICENSE("GPL");
91 /* module parameters */
92 struct iwl_mod_params iwl3945_mod_params
= {
93 .num_of_queues
= IWL39_MAX_NUM_QUEUES
,
94 /* the rest are 0 by default */
97 static const struct ieee80211_supported_band
*iwl3945_get_band(
98 struct iwl_priv
*priv
, enum ieee80211_band band
)
100 return priv
->hw
->wiphy
->bands
[band
];
103 /*************** DMA-QUEUE-GENERAL-FUNCTIONS *****
106 * Theory of operation
108 * A Tx or Rx queue resides in host DRAM, and is comprised of a circular buffer
109 * of buffer descriptors, each of which points to one or more data buffers for
110 * the device to read from or fill. Driver and device exchange status of each
111 * queue via "read" and "write" pointers. Driver keeps minimum of 2 empty
112 * entries in each circular buffer, to protect against confusing empty and full
115 * The device reads or writes the data in the queues via the device's several
116 * DMA/FIFO channels. Each queue is mapped to a single DMA channel.
118 * For Tx queue, there are low mark and high mark limits. If, after queuing
119 * the packet for Tx, free space become < low mark, Tx queue stopped. When
120 * reclaiming packets (on 'tx done IRQ), if free space become > high mark,
123 * The 3945 operates with six queues: One receive queue, one transmit queue
124 * (#4) for sending commands to the device firmware, and four transmit queues
125 * (#0-3) for data tx via EDCA. An additional 2 HCCA queues are unused.
126 ***************************************************/
128 int iwl3945_x2_queue_used(const struct iwl_queue
*q
, int i
)
130 return q
->write_ptr
> q
->read_ptr
?
131 (i
>= q
->read_ptr
&& i
< q
->write_ptr
) :
132 !(i
< q
->read_ptr
&& i
>= q
->write_ptr
);
136 * iwl3945_queue_init - Initialize queue's high/low-water and read/write indexes
138 static int iwl3945_queue_init(struct iwl_priv
*priv
, struct iwl_queue
*q
,
139 int count
, int slots_num
, u32 id
)
142 q
->n_window
= slots_num
;
145 /* count must be power-of-two size, otherwise iwl_queue_inc_wrap
146 * and iwl_queue_dec_wrap are broken. */
147 BUG_ON(!is_power_of_2(count
));
149 /* slots_num must be power-of-two size, otherwise
150 * get_cmd_index is broken. */
151 BUG_ON(!is_power_of_2(slots_num
));
153 q
->low_mark
= q
->n_window
/ 4;
157 q
->high_mark
= q
->n_window
/ 8;
158 if (q
->high_mark
< 2)
161 q
->write_ptr
= q
->read_ptr
= 0;
167 * iwl3945_tx_queue_alloc - Alloc driver data and TFD CB for one Tx/cmd queue
169 static int iwl3945_tx_queue_alloc(struct iwl_priv
*priv
,
170 struct iwl3945_tx_queue
*txq
, u32 id
)
172 struct pci_dev
*dev
= priv
->pci_dev
;
174 /* Driver private data, only for Tx (not command) queues,
175 * not shared with device. */
176 if (id
!= IWL_CMD_QUEUE_NUM
) {
177 txq
->txb
= kmalloc(sizeof(txq
->txb
[0]) *
178 TFD_QUEUE_SIZE_MAX
, GFP_KERNEL
);
180 IWL_ERR(priv
, "kmalloc for auxiliary BD "
181 "structures failed\n");
187 /* Circular buffer of transmit frame descriptors (TFDs),
188 * shared with device */
189 txq
->bd
= pci_alloc_consistent(dev
,
190 sizeof(txq
->bd
[0]) * TFD_QUEUE_SIZE_MAX
,
194 IWL_ERR(priv
, "pci_alloc_consistent(%zd) failed\n",
195 sizeof(txq
->bd
[0]) * TFD_QUEUE_SIZE_MAX
);
210 * iwl3945_tx_queue_init - Allocate and initialize one tx/cmd queue
212 int iwl3945_tx_queue_init(struct iwl_priv
*priv
,
213 struct iwl3945_tx_queue
*txq
, int slots_num
, u32 txq_id
)
215 struct pci_dev
*dev
= priv
->pci_dev
;
220 * Alloc buffer array for commands (Tx or other types of commands).
221 * For the command queue (#4), allocate command space + one big
222 * command for scan, since scan command is very huge; the system will
223 * not have two scans at the same time, so only one is needed.
224 * For data Tx queues (all other queues), no super-size command
227 len
= sizeof(struct iwl_cmd
) * slots_num
;
228 if (txq_id
== IWL_CMD_QUEUE_NUM
)
229 len
+= IWL_MAX_SCAN_SIZE
;
230 txq
->cmd
= pci_alloc_consistent(dev
, len
, &txq
->dma_addr_cmd
);
234 /* Alloc driver data array and TFD circular buffer */
235 rc
= iwl3945_tx_queue_alloc(priv
, txq
, txq_id
);
237 pci_free_consistent(dev
, len
, txq
->cmd
, txq
->dma_addr_cmd
);
241 txq
->need_update
= 0;
243 /* TFD_QUEUE_SIZE_MAX must be power-of-two size, otherwise
244 * iwl_queue_inc_wrap and iwl_queue_dec_wrap are broken. */
245 BUILD_BUG_ON(TFD_QUEUE_SIZE_MAX
& (TFD_QUEUE_SIZE_MAX
- 1));
247 /* Initialize queue high/low-water, head/tail indexes */
248 iwl3945_queue_init(priv
, &txq
->q
, TFD_QUEUE_SIZE_MAX
, slots_num
, txq_id
);
250 /* Tell device where to find queue, enable DMA channel. */
251 iwl3945_hw_tx_queue_init(priv
, txq
);
257 * iwl3945_tx_queue_free - Deallocate DMA queue.
258 * @txq: Transmit queue to deallocate.
260 * Empty queue by removing and destroying all BD's.
262 * 0-fill, but do not free "txq" descriptor structure.
264 void iwl3945_tx_queue_free(struct iwl_priv
*priv
, struct iwl3945_tx_queue
*txq
)
266 struct iwl_queue
*q
= &txq
->q
;
267 struct pci_dev
*dev
= priv
->pci_dev
;
273 /* first, empty all BD's */
274 for (; q
->write_ptr
!= q
->read_ptr
;
275 q
->read_ptr
= iwl_queue_inc_wrap(q
->read_ptr
, q
->n_bd
))
276 iwl3945_hw_txq_free_tfd(priv
, txq
);
278 len
= sizeof(struct iwl_cmd
) * q
->n_window
;
279 if (q
->id
== IWL_CMD_QUEUE_NUM
)
280 len
+= IWL_MAX_SCAN_SIZE
;
282 /* De-alloc array of command/tx buffers */
283 pci_free_consistent(dev
, len
, txq
->cmd
, txq
->dma_addr_cmd
);
285 /* De-alloc circular buffer of TFDs */
287 pci_free_consistent(dev
, sizeof(struct iwl3945_tfd_frame
) *
288 txq
->q
.n_bd
, txq
->bd
, txq
->q
.dma_addr
);
290 /* De-alloc array of per-TFD driver data */
294 /* 0-fill queue descriptor structure */
295 memset(txq
, 0, sizeof(*txq
));
298 /*************** STATION TABLE MANAGEMENT ****
299 * mac80211 should be examined to determine if sta_info is duplicating
300 * the functionality provided here
303 /**************************************************************/
304 #if 0 /* temporary disable till we add real remove station */
306 * iwl3945_remove_station - Remove driver's knowledge of station.
308 * NOTE: This does not remove station from device's station table.
310 static u8
iwl3945_remove_station(struct iwl_priv
*priv
, const u8
*addr
, int is_ap
)
312 int index
= IWL_INVALID_STATION
;
316 spin_lock_irqsave(&priv
->sta_lock
, flags
);
320 else if (is_broadcast_ether_addr(addr
))
321 index
= priv
->hw_params
.bcast_sta_id
;
323 for (i
= IWL_STA_ID
; i
< priv
->hw_params
.max_stations
; i
++)
324 if (priv
->stations_39
[i
].used
&&
325 !compare_ether_addr(priv
->stations_39
[i
].sta
.sta
.addr
,
331 if (unlikely(index
== IWL_INVALID_STATION
))
334 if (priv
->stations_39
[index
].used
) {
335 priv
->stations_39
[index
].used
= 0;
336 priv
->num_stations
--;
339 BUG_ON(priv
->num_stations
< 0);
342 spin_unlock_irqrestore(&priv
->sta_lock
, flags
);
348 * iwl3945_clear_stations_table - Clear the driver's station table
350 * NOTE: This does not clear or otherwise alter the device's station table.
352 static void iwl3945_clear_stations_table(struct iwl_priv
*priv
)
356 spin_lock_irqsave(&priv
->sta_lock
, flags
);
358 priv
->num_stations
= 0;
359 memset(priv
->stations_39
, 0, sizeof(priv
->stations_39
));
361 spin_unlock_irqrestore(&priv
->sta_lock
, flags
);
365 * iwl3945_add_station - Add station to station tables in driver and device
367 u8
iwl3945_add_station(struct iwl_priv
*priv
, const u8
*addr
, int is_ap
, u8 flags
)
370 int index
= IWL_INVALID_STATION
;
371 struct iwl3945_station_entry
*station
;
372 unsigned long flags_spin
;
375 spin_lock_irqsave(&priv
->sta_lock
, flags_spin
);
378 else if (is_broadcast_ether_addr(addr
))
379 index
= priv
->hw_params
.bcast_sta_id
;
381 for (i
= IWL_STA_ID
; i
< priv
->hw_params
.max_stations
; i
++) {
382 if (!compare_ether_addr(priv
->stations_39
[i
].sta
.sta
.addr
,
388 if (!priv
->stations_39
[i
].used
&&
389 index
== IWL_INVALID_STATION
)
393 /* These two conditions has the same outcome but keep them separate
394 since they have different meaning */
395 if (unlikely(index
== IWL_INVALID_STATION
)) {
396 spin_unlock_irqrestore(&priv
->sta_lock
, flags_spin
);
400 if (priv
->stations_39
[index
].used
&&
401 !compare_ether_addr(priv
->stations_39
[index
].sta
.sta
.addr
, addr
)) {
402 spin_unlock_irqrestore(&priv
->sta_lock
, flags_spin
);
406 IWL_DEBUG_ASSOC("Add STA ID %d: %pM\n", index
, addr
);
407 station
= &priv
->stations_39
[index
];
409 priv
->num_stations
++;
411 /* Set up the REPLY_ADD_STA command to send to device */
412 memset(&station
->sta
, 0, sizeof(struct iwl3945_addsta_cmd
));
413 memcpy(station
->sta
.sta
.addr
, addr
, ETH_ALEN
);
414 station
->sta
.mode
= 0;
415 station
->sta
.sta
.sta_id
= index
;
416 station
->sta
.station_flags
= 0;
418 if (priv
->band
== IEEE80211_BAND_5GHZ
)
419 rate
= IWL_RATE_6M_PLCP
;
421 rate
= IWL_RATE_1M_PLCP
;
423 /* Turn on both antennas for the station... */
424 station
->sta
.rate_n_flags
=
425 iwl3945_hw_set_rate_n_flags(rate
, RATE_MCS_ANT_AB_MSK
);
427 spin_unlock_irqrestore(&priv
->sta_lock
, flags_spin
);
429 /* Add station to device's station table */
430 iwl3945_send_add_station(priv
, &station
->sta
, flags
);
436 /*************** HOST COMMAND QUEUE FUNCTIONS *****/
438 #define IWL_CMD(x) case x: return #x
439 #define HOST_COMPLETE_TIMEOUT (HZ / 2)
442 * iwl3945_enqueue_hcmd - enqueue a uCode command
443 * @priv: device private data point
444 * @cmd: a point to the ucode command structure
446 * The function returns < 0 values to indicate the operation is
447 * failed. On success, it turns the index (> 0) of command in the
450 static int iwl3945_enqueue_hcmd(struct iwl_priv
*priv
, struct iwl_host_cmd
*cmd
)
452 struct iwl3945_tx_queue
*txq
= &priv
->txq39
[IWL_CMD_QUEUE_NUM
];
453 struct iwl_queue
*q
= &txq
->q
;
454 struct iwl3945_tfd_frame
*tfd
;
456 struct iwl_cmd
*out_cmd
;
458 u16 fix_size
= (u16
)(cmd
->len
+ sizeof(out_cmd
->hdr
));
459 dma_addr_t phys_addr
;
465 /* If any of the command structures end up being larger than
466 * the TFD_MAX_PAYLOAD_SIZE, and it sent as a 'small' command then
467 * we will need to increase the size of the TFD entries */
468 BUG_ON((fix_size
> TFD_MAX_PAYLOAD_SIZE
) &&
469 !(cmd
->meta
.flags
& CMD_SIZE_HUGE
));
472 if (iwl_is_rfkill(priv
)) {
473 IWL_DEBUG_INFO("Not sending command - RF KILL");
477 if (iwl_queue_space(q
) < ((cmd
->meta
.flags
& CMD_ASYNC
) ? 2 : 1)) {
478 IWL_ERR(priv
, "No space for Tx\n");
482 spin_lock_irqsave(&priv
->hcmd_lock
, flags
);
484 tfd
= &txq
->bd
[q
->write_ptr
];
485 memset(tfd
, 0, sizeof(*tfd
));
487 control_flags
= (u32
*) tfd
;
489 idx
= get_cmd_index(q
, q
->write_ptr
, cmd
->meta
.flags
& CMD_SIZE_HUGE
);
490 out_cmd
= &txq
->cmd
[idx
];
492 out_cmd
->hdr
.cmd
= cmd
->id
;
493 memcpy(&out_cmd
->meta
, &cmd
->meta
, sizeof(cmd
->meta
));
494 memcpy(&out_cmd
->cmd
.payload
, cmd
->data
, cmd
->len
);
496 /* At this point, the out_cmd now has all of the incoming cmd
499 out_cmd
->hdr
.flags
= 0;
500 out_cmd
->hdr
.sequence
= cpu_to_le16(QUEUE_TO_SEQ(IWL_CMD_QUEUE_NUM
) |
501 INDEX_TO_SEQ(q
->write_ptr
));
502 if (out_cmd
->meta
.flags
& CMD_SIZE_HUGE
)
503 out_cmd
->hdr
.sequence
|= SEQ_HUGE_FRAME
;
505 phys_addr
= txq
->dma_addr_cmd
+ sizeof(txq
->cmd
[0]) * idx
+
506 offsetof(struct iwl_cmd
, hdr
);
507 iwl3945_hw_txq_attach_buf_to_tfd(priv
, tfd
, phys_addr
, fix_size
);
509 pad
= U32_PAD(cmd
->len
);
510 count
= TFD_CTL_COUNT_GET(*control_flags
);
511 *control_flags
= TFD_CTL_COUNT_SET(count
) | TFD_CTL_PAD_SET(pad
);
513 IWL_DEBUG_HC("Sending command %s (#%x), seq: 0x%04X, "
514 "%d bytes at %d[%d]:%d\n",
515 get_cmd_string(out_cmd
->hdr
.cmd
),
516 out_cmd
->hdr
.cmd
, le16_to_cpu(out_cmd
->hdr
.sequence
),
517 fix_size
, q
->write_ptr
, idx
, IWL_CMD_QUEUE_NUM
);
519 txq
->need_update
= 1;
521 /* Increment and update queue's write index */
522 q
->write_ptr
= iwl_queue_inc_wrap(q
->write_ptr
, q
->n_bd
);
523 ret
= iwl3945_tx_queue_update_write_ptr(priv
, txq
);
525 spin_unlock_irqrestore(&priv
->hcmd_lock
, flags
);
526 return ret
? ret
: idx
;
529 static int iwl3945_send_cmd_async(struct iwl_priv
*priv
,
530 struct iwl_host_cmd
*cmd
)
534 BUG_ON(!(cmd
->meta
.flags
& CMD_ASYNC
));
536 /* An asynchronous command can not expect an SKB to be set. */
537 BUG_ON(cmd
->meta
.flags
& CMD_WANT_SKB
);
539 /* An asynchronous command MUST have a callback. */
540 BUG_ON(!cmd
->meta
.u
.callback
);
542 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
545 ret
= iwl3945_enqueue_hcmd(priv
, cmd
);
548 "Error sending %s: iwl3945_enqueue_hcmd failed: %d\n",
549 get_cmd_string(cmd
->id
), ret
);
555 static int iwl3945_send_cmd_sync(struct iwl_priv
*priv
,
556 struct iwl_host_cmd
*cmd
)
561 BUG_ON(cmd
->meta
.flags
& CMD_ASYNC
);
563 /* A synchronous command can not have a callback set. */
564 BUG_ON(cmd
->meta
.u
.callback
!= NULL
);
566 if (test_and_set_bit(STATUS_HCMD_SYNC_ACTIVE
, &priv
->status
)) {
568 "Error sending %s: Already sending a host command\n",
569 get_cmd_string(cmd
->id
));
574 set_bit(STATUS_HCMD_ACTIVE
, &priv
->status
);
576 if (cmd
->meta
.flags
& CMD_WANT_SKB
)
577 cmd
->meta
.source
= &cmd
->meta
;
579 cmd_idx
= iwl3945_enqueue_hcmd(priv
, cmd
);
583 "Error sending %s: iwl3945_enqueue_hcmd failed: %d\n",
584 get_cmd_string(cmd
->id
), ret
);
588 ret
= wait_event_interruptible_timeout(priv
->wait_command_queue
,
589 !test_bit(STATUS_HCMD_ACTIVE
, &priv
->status
),
590 HOST_COMPLETE_TIMEOUT
);
592 if (test_bit(STATUS_HCMD_ACTIVE
, &priv
->status
)) {
593 IWL_ERR(priv
, "Error sending %s: time out after %dms\n",
594 get_cmd_string(cmd
->id
),
595 jiffies_to_msecs(HOST_COMPLETE_TIMEOUT
));
597 clear_bit(STATUS_HCMD_ACTIVE
, &priv
->status
);
603 if (test_bit(STATUS_RF_KILL_HW
, &priv
->status
)) {
604 IWL_DEBUG_INFO("Command %s aborted: RF KILL Switch\n",
605 get_cmd_string(cmd
->id
));
609 if (test_bit(STATUS_FW_ERROR
, &priv
->status
)) {
610 IWL_DEBUG_INFO("Command %s failed: FW Error\n",
611 get_cmd_string(cmd
->id
));
615 if ((cmd
->meta
.flags
& CMD_WANT_SKB
) && !cmd
->meta
.u
.skb
) {
616 IWL_ERR(priv
, "Error: Response NULL in '%s'\n",
617 get_cmd_string(cmd
->id
));
626 if (cmd
->meta
.flags
& CMD_WANT_SKB
) {
627 struct iwl_cmd
*qcmd
;
629 /* Cancel the CMD_WANT_SKB flag for the cmd in the
630 * TX cmd queue. Otherwise in case the cmd comes
631 * in later, it will possibly set an invalid
632 * address (cmd->meta.source). */
633 qcmd
= &priv
->txq39
[IWL_CMD_QUEUE_NUM
].cmd
[cmd_idx
];
634 qcmd
->meta
.flags
&= ~CMD_WANT_SKB
;
637 if (cmd
->meta
.u
.skb
) {
638 dev_kfree_skb_any(cmd
->meta
.u
.skb
);
639 cmd
->meta
.u
.skb
= NULL
;
642 clear_bit(STATUS_HCMD_SYNC_ACTIVE
, &priv
->status
);
646 int iwl3945_send_cmd(struct iwl_priv
*priv
, struct iwl_host_cmd
*cmd
)
648 if (cmd
->meta
.flags
& CMD_ASYNC
)
649 return iwl3945_send_cmd_async(priv
, cmd
);
651 return iwl3945_send_cmd_sync(priv
, cmd
);
654 int iwl3945_send_cmd_pdu(struct iwl_priv
*priv
, u8 id
, u16 len
, const void *data
)
656 struct iwl_host_cmd cmd
= {
662 return iwl3945_send_cmd_sync(priv
, &cmd
);
665 static int __must_check
iwl3945_send_cmd_u32(struct iwl_priv
*priv
, u8 id
, u32 val
)
667 struct iwl_host_cmd cmd
= {
673 return iwl3945_send_cmd_sync(priv
, &cmd
);
676 int iwl3945_send_statistics_request(struct iwl_priv
*priv
)
678 return iwl3945_send_cmd_u32(priv
, REPLY_STATISTICS_CMD
, 0);
682 * iwl3945_set_rxon_channel - Set the phymode and channel values in staging RXON
683 * @band: 2.4 or 5 GHz band
684 * @channel: Any channel valid for the requested band
686 * In addition to setting the staging RXON, priv->band is also set.
688 * NOTE: Does not commit to the hardware; it sets appropriate bit fields
689 * in the staging RXON flag structure based on the band
691 static int iwl3945_set_rxon_channel(struct iwl_priv
*priv
,
692 enum ieee80211_band band
,
695 if (!iwl3945_get_channel_info(priv
, band
, channel
)) {
696 IWL_DEBUG_INFO("Could not set channel to %d [%d]\n",
701 if ((le16_to_cpu(priv
->staging39_rxon
.channel
) == channel
) &&
702 (priv
->band
== band
))
705 priv
->staging39_rxon
.channel
= cpu_to_le16(channel
);
706 if (band
== IEEE80211_BAND_5GHZ
)
707 priv
->staging39_rxon
.flags
&= ~RXON_FLG_BAND_24G_MSK
;
709 priv
->staging39_rxon
.flags
|= RXON_FLG_BAND_24G_MSK
;
713 IWL_DEBUG_INFO("Staging channel set to %d [%d]\n", channel
, band
);
719 * iwl3945_check_rxon_cmd - validate RXON structure is valid
721 * NOTE: This is really only useful during development and can eventually
722 * be #ifdef'd out once the driver is stable and folks aren't actively
725 static int iwl3945_check_rxon_cmd(struct iwl_priv
*priv
)
729 struct iwl3945_rxon_cmd
*rxon
= &priv
->staging39_rxon
;
731 if (rxon
->flags
& RXON_FLG_BAND_24G_MSK
) {
732 error
|= le32_to_cpu(rxon
->flags
&
733 (RXON_FLG_TGJ_NARROW_BAND_MSK
|
734 RXON_FLG_RADAR_DETECT_MSK
));
736 IWL_WARN(priv
, "check 24G fields %d | %d\n",
739 error
|= (rxon
->flags
& RXON_FLG_SHORT_SLOT_MSK
) ?
740 0 : le32_to_cpu(RXON_FLG_SHORT_SLOT_MSK
);
742 IWL_WARN(priv
, "check 52 fields %d | %d\n",
744 error
|= le32_to_cpu(rxon
->flags
& RXON_FLG_CCK_MSK
);
746 IWL_WARN(priv
, "check 52 CCK %d | %d\n",
749 error
|= (rxon
->node_addr
[0] | rxon
->bssid_addr
[0]) & 0x1;
751 IWL_WARN(priv
, "check mac addr %d | %d\n", counter
++, error
);
753 /* make sure basic rates 6Mbps and 1Mbps are supported */
754 error
|= (((rxon
->ofdm_basic_rates
& IWL_RATE_6M_MASK
) == 0) &&
755 ((rxon
->cck_basic_rates
& IWL_RATE_1M_MASK
) == 0));
757 IWL_WARN(priv
, "check basic rate %d | %d\n", counter
++, error
);
759 error
|= (le16_to_cpu(rxon
->assoc_id
) > 2007);
761 IWL_WARN(priv
, "check assoc id %d | %d\n", counter
++, error
);
763 error
|= ((rxon
->flags
& (RXON_FLG_CCK_MSK
| RXON_FLG_SHORT_SLOT_MSK
))
764 == (RXON_FLG_CCK_MSK
| RXON_FLG_SHORT_SLOT_MSK
));
766 IWL_WARN(priv
, "check CCK and short slot %d | %d\n",
769 error
|= ((rxon
->flags
& (RXON_FLG_CCK_MSK
| RXON_FLG_AUTO_DETECT_MSK
))
770 == (RXON_FLG_CCK_MSK
| RXON_FLG_AUTO_DETECT_MSK
));
772 IWL_WARN(priv
, "check CCK & auto detect %d | %d\n",
775 error
|= ((rxon
->flags
& (RXON_FLG_AUTO_DETECT_MSK
|
776 RXON_FLG_TGG_PROTECT_MSK
)) == RXON_FLG_TGG_PROTECT_MSK
);
778 IWL_WARN(priv
, "check TGG and auto detect %d | %d\n",
781 if ((rxon
->flags
& RXON_FLG_DIS_DIV_MSK
))
782 error
|= ((rxon
->flags
& (RXON_FLG_ANT_B_MSK
|
783 RXON_FLG_ANT_A_MSK
)) == 0);
785 IWL_WARN(priv
, "check antenna %d %d\n", counter
++, error
);
788 IWL_WARN(priv
, "Tuning to channel %d\n",
789 le16_to_cpu(rxon
->channel
));
792 IWL_ERR(priv
, "Not a valid rxon_assoc_cmd field values\n");
799 * iwl3945_full_rxon_required - check if full RXON (vs RXON_ASSOC) cmd is needed
800 * @priv: staging_rxon is compared to active_rxon
802 * If the RXON structure is changing enough to require a new tune,
803 * or is clearing the RXON_FILTER_ASSOC_MSK, then return 1 to indicate that
804 * a new tune (full RXON command, rather than RXON_ASSOC cmd) is required.
806 static int iwl3945_full_rxon_required(struct iwl_priv
*priv
)
809 /* These items are only settable from the full RXON command */
810 if (!(iwl3945_is_associated(priv
)) ||
811 compare_ether_addr(priv
->staging39_rxon
.bssid_addr
,
812 priv
->active39_rxon
.bssid_addr
) ||
813 compare_ether_addr(priv
->staging39_rxon
.node_addr
,
814 priv
->active39_rxon
.node_addr
) ||
815 compare_ether_addr(priv
->staging39_rxon
.wlap_bssid_addr
,
816 priv
->active39_rxon
.wlap_bssid_addr
) ||
817 (priv
->staging39_rxon
.dev_type
!= priv
->active39_rxon
.dev_type
) ||
818 (priv
->staging39_rxon
.channel
!= priv
->active39_rxon
.channel
) ||
819 (priv
->staging39_rxon
.air_propagation
!=
820 priv
->active39_rxon
.air_propagation
) ||
821 (priv
->staging39_rxon
.assoc_id
!= priv
->active39_rxon
.assoc_id
))
824 /* flags, filter_flags, ofdm_basic_rates, and cck_basic_rates can
825 * be updated with the RXON_ASSOC command -- however only some
826 * flag transitions are allowed using RXON_ASSOC */
828 /* Check if we are not switching bands */
829 if ((priv
->staging39_rxon
.flags
& RXON_FLG_BAND_24G_MSK
) !=
830 (priv
->active39_rxon
.flags
& RXON_FLG_BAND_24G_MSK
))
833 /* Check if we are switching association toggle */
834 if ((priv
->staging39_rxon
.filter_flags
& RXON_FILTER_ASSOC_MSK
) !=
835 (priv
->active39_rxon
.filter_flags
& RXON_FILTER_ASSOC_MSK
))
841 static int iwl3945_send_rxon_assoc(struct iwl_priv
*priv
)
844 struct iwl_rx_packet
*res
= NULL
;
845 struct iwl3945_rxon_assoc_cmd rxon_assoc
;
846 struct iwl_host_cmd cmd
= {
847 .id
= REPLY_RXON_ASSOC
,
848 .len
= sizeof(rxon_assoc
),
849 .meta
.flags
= CMD_WANT_SKB
,
852 const struct iwl3945_rxon_cmd
*rxon1
= &priv
->staging39_rxon
;
853 const struct iwl3945_rxon_cmd
*rxon2
= &priv
->active39_rxon
;
855 if ((rxon1
->flags
== rxon2
->flags
) &&
856 (rxon1
->filter_flags
== rxon2
->filter_flags
) &&
857 (rxon1
->cck_basic_rates
== rxon2
->cck_basic_rates
) &&
858 (rxon1
->ofdm_basic_rates
== rxon2
->ofdm_basic_rates
)) {
859 IWL_DEBUG_INFO("Using current RXON_ASSOC. Not resending.\n");
863 rxon_assoc
.flags
= priv
->staging39_rxon
.flags
;
864 rxon_assoc
.filter_flags
= priv
->staging39_rxon
.filter_flags
;
865 rxon_assoc
.ofdm_basic_rates
= priv
->staging39_rxon
.ofdm_basic_rates
;
866 rxon_assoc
.cck_basic_rates
= priv
->staging39_rxon
.cck_basic_rates
;
867 rxon_assoc
.reserved
= 0;
869 rc
= iwl3945_send_cmd_sync(priv
, &cmd
);
873 res
= (struct iwl_rx_packet
*)cmd
.meta
.u
.skb
->data
;
874 if (res
->hdr
.flags
& IWL_CMD_FAILED_MSK
) {
875 IWL_ERR(priv
, "Bad return from REPLY_RXON_ASSOC command\n");
879 priv
->alloc_rxb_skb
--;
880 dev_kfree_skb_any(cmd
.meta
.u
.skb
);
886 * iwl3945_commit_rxon - commit staging_rxon to hardware
888 * The RXON command in staging_rxon is committed to the hardware and
889 * the active_rxon structure is updated with the new data. This
890 * function correctly transitions out of the RXON_ASSOC_MSK state if
891 * a HW tune is required based on the RXON structure changes.
893 static int iwl3945_commit_rxon(struct iwl_priv
*priv
)
895 /* cast away the const for active_rxon in this function */
896 struct iwl3945_rxon_cmd
*active_rxon
= (void *)&priv
->active39_rxon
;
899 if (!iwl_is_alive(priv
))
902 /* always get timestamp with Rx frame */
903 priv
->staging39_rxon
.flags
|= RXON_FLG_TSF2HOST_MSK
;
906 priv
->staging39_rxon
.flags
&=
907 ~(RXON_FLG_DIS_DIV_MSK
| RXON_FLG_ANT_SEL_MSK
);
908 priv
->staging39_rxon
.flags
|= iwl3945_get_antenna_flags(priv
);
910 rc
= iwl3945_check_rxon_cmd(priv
);
912 IWL_ERR(priv
, "Invalid RXON configuration. Not committing.\n");
916 /* If we don't need to send a full RXON, we can use
917 * iwl3945_rxon_assoc_cmd which is used to reconfigure filter
918 * and other flags for the current radio configuration. */
919 if (!iwl3945_full_rxon_required(priv
)) {
920 rc
= iwl3945_send_rxon_assoc(priv
);
922 IWL_ERR(priv
, "Error setting RXON_ASSOC "
923 "configuration (%d).\n", rc
);
927 memcpy(active_rxon
, &priv
->staging39_rxon
, sizeof(*active_rxon
));
932 /* If we are currently associated and the new config requires
933 * an RXON_ASSOC and the new config wants the associated mask enabled,
934 * we must clear the associated from the active configuration
935 * before we apply the new config */
936 if (iwl3945_is_associated(priv
) &&
937 (priv
->staging39_rxon
.filter_flags
& RXON_FILTER_ASSOC_MSK
)) {
938 IWL_DEBUG_INFO("Toggling associated bit on current RXON\n");
939 active_rxon
->filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
941 rc
= iwl3945_send_cmd_pdu(priv
, REPLY_RXON
,
942 sizeof(struct iwl3945_rxon_cmd
),
943 &priv
->active39_rxon
);
945 /* If the mask clearing failed then we set
946 * active_rxon back to what it was previously */
948 active_rxon
->filter_flags
|= RXON_FILTER_ASSOC_MSK
;
949 IWL_ERR(priv
, "Error clearing ASSOC_MSK on current "
950 "configuration (%d).\n", rc
);
955 IWL_DEBUG_INFO("Sending RXON\n"
956 "* with%s RXON_FILTER_ASSOC_MSK\n"
959 ((priv
->staging39_rxon
.filter_flags
&
960 RXON_FILTER_ASSOC_MSK
) ? "" : "out"),
961 le16_to_cpu(priv
->staging39_rxon
.channel
),
962 priv
->staging_rxon
.bssid_addr
);
964 /* Apply the new configuration */
965 rc
= iwl3945_send_cmd_pdu(priv
, REPLY_RXON
,
966 sizeof(struct iwl3945_rxon_cmd
), &priv
->staging39_rxon
);
968 IWL_ERR(priv
, "Error setting new configuration (%d).\n", rc
);
972 memcpy(active_rxon
, &priv
->staging39_rxon
, sizeof(*active_rxon
));
974 iwl3945_clear_stations_table(priv
);
976 /* If we issue a new RXON command which required a tune then we must
977 * send a new TXPOWER command or we won't be able to Tx any frames */
978 rc
= iwl3945_hw_reg_send_txpower(priv
);
980 IWL_ERR(priv
, "Error setting Tx power (%d).\n", rc
);
984 /* Add the broadcast address so we can send broadcast frames */
985 if (iwl3945_add_station(priv
, iwl_bcast_addr
, 0, 0) ==
986 IWL_INVALID_STATION
) {
987 IWL_ERR(priv
, "Error adding BROADCAST address for transmit.\n");
991 /* If we have set the ASSOC_MSK and we are in BSS mode then
992 * add the IWL_AP_ID to the station rate table */
993 if (iwl3945_is_associated(priv
) &&
994 (priv
->iw_mode
== NL80211_IFTYPE_STATION
))
995 if (iwl3945_add_station(priv
, priv
->active39_rxon
.bssid_addr
, 1, 0)
996 == IWL_INVALID_STATION
) {
997 IWL_ERR(priv
, "Error adding AP address for transmit\n");
1001 /* Init the hardware's rate fallback order based on the band */
1002 rc
= iwl3945_init_hw_rate_table(priv
);
1004 IWL_ERR(priv
, "Error setting HW rate table: %02X\n", rc
);
1011 static int iwl3945_send_bt_config(struct iwl_priv
*priv
)
1013 struct iwl_bt_cmd bt_cmd
= {
1021 return iwl3945_send_cmd_pdu(priv
, REPLY_BT_CONFIG
,
1022 sizeof(bt_cmd
), &bt_cmd
);
1025 static int iwl3945_send_scan_abort(struct iwl_priv
*priv
)
1028 struct iwl_rx_packet
*res
;
1029 struct iwl_host_cmd cmd
= {
1030 .id
= REPLY_SCAN_ABORT_CMD
,
1031 .meta
.flags
= CMD_WANT_SKB
,
1034 /* If there isn't a scan actively going on in the hardware
1035 * then we are in between scan bands and not actually
1036 * actively scanning, so don't send the abort command */
1037 if (!test_bit(STATUS_SCAN_HW
, &priv
->status
)) {
1038 clear_bit(STATUS_SCAN_ABORTING
, &priv
->status
);
1042 rc
= iwl3945_send_cmd_sync(priv
, &cmd
);
1044 clear_bit(STATUS_SCAN_ABORTING
, &priv
->status
);
1048 res
= (struct iwl_rx_packet
*)cmd
.meta
.u
.skb
->data
;
1049 if (res
->u
.status
!= CAN_ABORT_STATUS
) {
1050 /* The scan abort will return 1 for success or
1051 * 2 for "failure". A failure condition can be
1052 * due to simply not being in an active scan which
1053 * can occur if we send the scan abort before we
1054 * the microcode has notified us that a scan is
1056 IWL_DEBUG_INFO("SCAN_ABORT returned %d.\n", res
->u
.status
);
1057 clear_bit(STATUS_SCAN_ABORTING
, &priv
->status
);
1058 clear_bit(STATUS_SCAN_HW
, &priv
->status
);
1061 dev_kfree_skb_any(cmd
.meta
.u
.skb
);
1066 static int iwl3945_card_state_sync_callback(struct iwl_priv
*priv
,
1067 struct iwl_cmd
*cmd
,
1068 struct sk_buff
*skb
)
1076 * Use: Sets the device's internal card state to enable, disable, or halt
1078 * When in the 'enable' state the card operates as normal.
1079 * When in the 'disable' state, the card enters into a low power mode.
1080 * When in the 'halt' state, the card is shut down and must be fully
1081 * restarted to come back on.
1083 static int iwl3945_send_card_state(struct iwl_priv
*priv
, u32 flags
, u8 meta_flag
)
1085 struct iwl_host_cmd cmd
= {
1086 .id
= REPLY_CARD_STATE_CMD
,
1089 .meta
.flags
= meta_flag
,
1092 if (meta_flag
& CMD_ASYNC
)
1093 cmd
.meta
.u
.callback
= iwl3945_card_state_sync_callback
;
1095 return iwl3945_send_cmd(priv
, &cmd
);
1098 static int iwl3945_add_sta_sync_callback(struct iwl_priv
*priv
,
1099 struct iwl_cmd
*cmd
, struct sk_buff
*skb
)
1101 struct iwl_rx_packet
*res
= NULL
;
1104 IWL_ERR(priv
, "Error: Response NULL in REPLY_ADD_STA.\n");
1108 res
= (struct iwl_rx_packet
*)skb
->data
;
1109 if (res
->hdr
.flags
& IWL_CMD_FAILED_MSK
) {
1110 IWL_ERR(priv
, "Bad return from REPLY_ADD_STA (0x%08X)\n",
1115 switch (res
->u
.add_sta
.status
) {
1116 case ADD_STA_SUCCESS_MSK
:
1122 /* We didn't cache the SKB; let the caller free it */
1126 int iwl3945_send_add_station(struct iwl_priv
*priv
,
1127 struct iwl3945_addsta_cmd
*sta
, u8 flags
)
1129 struct iwl_rx_packet
*res
= NULL
;
1131 struct iwl_host_cmd cmd
= {
1132 .id
= REPLY_ADD_STA
,
1133 .len
= sizeof(struct iwl3945_addsta_cmd
),
1134 .meta
.flags
= flags
,
1138 if (flags
& CMD_ASYNC
)
1139 cmd
.meta
.u
.callback
= iwl3945_add_sta_sync_callback
;
1141 cmd
.meta
.flags
|= CMD_WANT_SKB
;
1143 rc
= iwl3945_send_cmd(priv
, &cmd
);
1145 if (rc
|| (flags
& CMD_ASYNC
))
1148 res
= (struct iwl_rx_packet
*)cmd
.meta
.u
.skb
->data
;
1149 if (res
->hdr
.flags
& IWL_CMD_FAILED_MSK
) {
1150 IWL_ERR(priv
, "Bad return from REPLY_ADD_STA (0x%08X)\n",
1156 switch (res
->u
.add_sta
.status
) {
1157 case ADD_STA_SUCCESS_MSK
:
1158 IWL_DEBUG_INFO("REPLY_ADD_STA PASSED\n");
1162 IWL_WARN(priv
, "REPLY_ADD_STA failed\n");
1167 priv
->alloc_rxb_skb
--;
1168 dev_kfree_skb_any(cmd
.meta
.u
.skb
);
1173 static int iwl3945_update_sta_key_info(struct iwl_priv
*priv
,
1174 struct ieee80211_key_conf
*keyconf
,
1177 unsigned long flags
;
1178 __le16 key_flags
= 0;
1180 switch (keyconf
->alg
) {
1182 key_flags
|= STA_KEY_FLG_CCMP
;
1183 key_flags
|= cpu_to_le16(
1184 keyconf
->keyidx
<< STA_KEY_FLG_KEYID_POS
);
1185 key_flags
&= ~STA_KEY_FLG_INVALID
;
1192 spin_lock_irqsave(&priv
->sta_lock
, flags
);
1193 priv
->stations_39
[sta_id
].keyinfo
.alg
= keyconf
->alg
;
1194 priv
->stations_39
[sta_id
].keyinfo
.keylen
= keyconf
->keylen
;
1195 memcpy(priv
->stations_39
[sta_id
].keyinfo
.key
, keyconf
->key
,
1198 memcpy(priv
->stations_39
[sta_id
].sta
.key
.key
, keyconf
->key
,
1200 priv
->stations_39
[sta_id
].sta
.key
.key_flags
= key_flags
;
1201 priv
->stations_39
[sta_id
].sta
.sta
.modify_mask
= STA_MODIFY_KEY_MASK
;
1202 priv
->stations_39
[sta_id
].sta
.mode
= STA_CONTROL_MODIFY_MSK
;
1204 spin_unlock_irqrestore(&priv
->sta_lock
, flags
);
1206 IWL_DEBUG_INFO("hwcrypto: modify ucode station key info\n");
1207 iwl3945_send_add_station(priv
, &priv
->stations_39
[sta_id
].sta
, 0);
1211 static int iwl3945_clear_sta_key_info(struct iwl_priv
*priv
, u8 sta_id
)
1213 unsigned long flags
;
1215 spin_lock_irqsave(&priv
->sta_lock
, flags
);
1216 memset(&priv
->stations_39
[sta_id
].keyinfo
, 0, sizeof(struct iwl3945_hw_key
));
1217 memset(&priv
->stations_39
[sta_id
].sta
.key
, 0,
1218 sizeof(struct iwl4965_keyinfo
));
1219 priv
->stations_39
[sta_id
].sta
.key
.key_flags
= STA_KEY_FLG_NO_ENC
;
1220 priv
->stations_39
[sta_id
].sta
.sta
.modify_mask
= STA_MODIFY_KEY_MASK
;
1221 priv
->stations_39
[sta_id
].sta
.mode
= STA_CONTROL_MODIFY_MSK
;
1222 spin_unlock_irqrestore(&priv
->sta_lock
, flags
);
1224 IWL_DEBUG_INFO("hwcrypto: clear ucode station key info\n");
1225 iwl3945_send_add_station(priv
, &priv
->stations_39
[sta_id
].sta
, 0);
1229 static void iwl3945_clear_free_frames(struct iwl_priv
*priv
)
1231 struct list_head
*element
;
1233 IWL_DEBUG_INFO("%d frames on pre-allocated heap on clear.\n",
1234 priv
->frames_count
);
1236 while (!list_empty(&priv
->free_frames
)) {
1237 element
= priv
->free_frames
.next
;
1239 kfree(list_entry(element
, struct iwl3945_frame
, list
));
1240 priv
->frames_count
--;
1243 if (priv
->frames_count
) {
1244 IWL_WARN(priv
, "%d frames still in use. Did we lose one?\n",
1245 priv
->frames_count
);
1246 priv
->frames_count
= 0;
1250 static struct iwl3945_frame
*iwl3945_get_free_frame(struct iwl_priv
*priv
)
1252 struct iwl3945_frame
*frame
;
1253 struct list_head
*element
;
1254 if (list_empty(&priv
->free_frames
)) {
1255 frame
= kzalloc(sizeof(*frame
), GFP_KERNEL
);
1257 IWL_ERR(priv
, "Could not allocate frame!\n");
1261 priv
->frames_count
++;
1265 element
= priv
->free_frames
.next
;
1267 return list_entry(element
, struct iwl3945_frame
, list
);
1270 static void iwl3945_free_frame(struct iwl_priv
*priv
, struct iwl3945_frame
*frame
)
1272 memset(frame
, 0, sizeof(*frame
));
1273 list_add(&frame
->list
, &priv
->free_frames
);
1276 unsigned int iwl3945_fill_beacon_frame(struct iwl_priv
*priv
,
1277 struct ieee80211_hdr
*hdr
,
1281 if (!iwl3945_is_associated(priv
) || !priv
->ibss_beacon
||
1282 ((priv
->iw_mode
!= NL80211_IFTYPE_ADHOC
) &&
1283 (priv
->iw_mode
!= NL80211_IFTYPE_AP
)))
1286 if (priv
->ibss_beacon
->len
> left
)
1289 memcpy(hdr
, priv
->ibss_beacon
->data
, priv
->ibss_beacon
->len
);
1291 return priv
->ibss_beacon
->len
;
1294 static u8
iwl3945_rate_get_lowest_plcp(struct iwl_priv
*priv
)
1300 if (priv
->staging39_rxon
.flags
& RXON_FLG_BAND_24G_MSK
)
1301 rate_mask
= priv
->active_rate_basic
& IWL_CCK_RATES_MASK
;
1303 rate_mask
= priv
->active_rate_basic
& IWL_OFDM_RATES_MASK
;
1305 for (i
= IWL_RATE_1M_INDEX
; i
!= IWL_RATE_INVALID
;
1306 i
= iwl3945_rates
[i
].next_ieee
) {
1307 if (rate_mask
& (1 << i
))
1308 return iwl3945_rates
[i
].plcp
;
1311 /* No valid rate was found. Assign the lowest one */
1312 if (priv
->staging39_rxon
.flags
& RXON_FLG_BAND_24G_MSK
)
1313 return IWL_RATE_1M_PLCP
;
1315 return IWL_RATE_6M_PLCP
;
1318 static int iwl3945_send_beacon_cmd(struct iwl_priv
*priv
)
1320 struct iwl3945_frame
*frame
;
1321 unsigned int frame_size
;
1325 frame
= iwl3945_get_free_frame(priv
);
1328 IWL_ERR(priv
, "Could not obtain free frame buffer for beacon "
1333 rate
= iwl3945_rate_get_lowest_plcp(priv
);
1335 frame_size
= iwl3945_hw_get_beacon_cmd(priv
, frame
, rate
);
1337 rc
= iwl3945_send_cmd_pdu(priv
, REPLY_TX_BEACON
, frame_size
,
1340 iwl3945_free_frame(priv
, frame
);
1345 /******************************************************************************
1347 * EEPROM related functions
1349 ******************************************************************************/
1351 static void get_eeprom_mac(struct iwl_priv
*priv
, u8
*mac
)
1353 memcpy(mac
, priv
->eeprom39
.mac_address
, 6);
1357 * Clear the OWNER_MSK, to establish driver (instead of uCode running on
1358 * embedded controller) as EEPROM reader; each read is a series of pulses
1359 * to/from the EEPROM chip, not a single event, so even reads could conflict
1360 * if they weren't arbitrated by some ownership mechanism. Here, the driver
1361 * simply claims ownership, which should be safe when this function is called
1362 * (i.e. before loading uCode!).
1364 static inline int iwl3945_eeprom_acquire_semaphore(struct iwl_priv
*priv
)
1366 _iwl_clear_bit(priv
, CSR_EEPROM_GP
, CSR_EEPROM_GP_IF_OWNER_MSK
);
1371 * iwl3945_eeprom_init - read EEPROM contents
1373 * Load the EEPROM contents from adapter into priv->eeprom39
1375 * NOTE: This routine uses the non-debug IO access functions.
1377 int iwl3945_eeprom_init(struct iwl_priv
*priv
)
1379 u16
*e
= (u16
*)&priv
->eeprom39
;
1380 u32 gp
= iwl_read32(priv
, CSR_EEPROM_GP
);
1381 int sz
= sizeof(priv
->eeprom39
);
1385 /* The EEPROM structure has several padding buffers within it
1386 * and when adding new EEPROM maps is subject to programmer errors
1387 * which may be very difficult to identify without explicitly
1388 * checking the resulting size of the eeprom map. */
1389 BUILD_BUG_ON(sizeof(priv
->eeprom39
) != IWL_EEPROM_IMAGE_SIZE
);
1391 if ((gp
& CSR_EEPROM_GP_VALID_MSK
) == CSR_EEPROM_GP_BAD_SIGNATURE
) {
1392 IWL_ERR(priv
, "EEPROM not found, EEPROM_GP=0x%08x\n", gp
);
1396 /* Make sure driver (instead of uCode) is allowed to read EEPROM */
1397 ret
= iwl3945_eeprom_acquire_semaphore(priv
);
1399 IWL_ERR(priv
, "Failed to acquire EEPROM semaphore.\n");
1403 /* eeprom is an array of 16bit values */
1404 for (addr
= 0; addr
< sz
; addr
+= sizeof(u16
)) {
1407 _iwl_write32(priv
, CSR_EEPROM_REG
,
1408 CSR_EEPROM_REG_MSK_ADDR
& (addr
<< 1));
1409 _iwl_clear_bit(priv
, CSR_EEPROM_REG
, CSR_EEPROM_REG_BIT_CMD
);
1410 ret
= iwl_poll_direct_bit(priv
, CSR_EEPROM_REG
,
1411 CSR_EEPROM_REG_READ_VALID_MSK
,
1412 IWL_EEPROM_ACCESS_TIMEOUT
);
1414 IWL_ERR(priv
, "Time out reading EEPROM[%d]\n", addr
);
1418 r
= _iwl_read_direct32(priv
, CSR_EEPROM_REG
);
1419 e
[addr
/ 2] = le16_to_cpu((__force __le16
)(r
>> 16));
1425 static void iwl3945_unset_hw_params(struct iwl_priv
*priv
)
1427 if (priv
->shared_virt
)
1428 pci_free_consistent(priv
->pci_dev
,
1429 sizeof(struct iwl3945_shared
),
1435 * iwl3945_supported_rate_to_ie - fill in the supported rate in IE field
1437 * return : set the bit for each supported rate insert in ie
1439 static u16
iwl3945_supported_rate_to_ie(u8
*ie
, u16 supported_rate
,
1440 u16 basic_rate
, int *left
)
1442 u16 ret_rates
= 0, bit
;
1447 for (bit
= 1, i
= 0; i
< IWL_RATE_COUNT
; i
++, bit
<<= 1) {
1448 if (bit
& supported_rate
) {
1450 rates
[*cnt
] = iwl3945_rates
[i
].ieee
|
1451 ((bit
& basic_rate
) ? 0x80 : 0x00);
1455 (*cnt
>= IWL_SUPPORTED_RATES_IE_LEN
))
1464 * iwl3945_fill_probe_req - fill in all required fields and IE for probe request
1466 static u16
iwl3945_fill_probe_req(struct iwl_priv
*priv
,
1467 struct ieee80211_mgmt
*frame
,
1472 u16 active_rates
, ret_rates
, cck_rates
;
1474 /* Make sure there is enough space for the probe request,
1475 * two mandatory IEs and the data */
1481 frame
->frame_control
= cpu_to_le16(IEEE80211_STYPE_PROBE_REQ
);
1482 memcpy(frame
->da
, iwl_bcast_addr
, ETH_ALEN
);
1483 memcpy(frame
->sa
, priv
->mac_addr
, ETH_ALEN
);
1484 memcpy(frame
->bssid
, iwl_bcast_addr
, ETH_ALEN
);
1485 frame
->seq_ctrl
= 0;
1487 /* fill in our indirect SSID IE */
1494 pos
= &(frame
->u
.probe_req
.variable
[0]);
1495 *pos
++ = WLAN_EID_SSID
;
1498 /* fill in supported rate */
1504 /* ... fill it in... */
1505 *pos
++ = WLAN_EID_SUPP_RATES
;
1508 priv
->active_rate
= priv
->rates_mask
;
1509 active_rates
= priv
->active_rate
;
1510 priv
->active_rate_basic
= priv
->rates_mask
& IWL_BASIC_RATES_MASK
;
1512 cck_rates
= IWL_CCK_RATES_MASK
& active_rates
;
1513 ret_rates
= iwl3945_supported_rate_to_ie(pos
, cck_rates
,
1514 priv
->active_rate_basic
, &left
);
1515 active_rates
&= ~ret_rates
;
1517 ret_rates
= iwl3945_supported_rate_to_ie(pos
, active_rates
,
1518 priv
->active_rate_basic
, &left
);
1519 active_rates
&= ~ret_rates
;
1523 if (active_rates
== 0)
1526 /* fill in supported extended rate */
1531 /* ... fill it in... */
1532 *pos
++ = WLAN_EID_EXT_SUPP_RATES
;
1534 iwl3945_supported_rate_to_ie(pos
, active_rates
,
1535 priv
->active_rate_basic
, &left
);
1546 static int iwl3945_send_qos_params_command(struct iwl_priv
*priv
,
1547 struct iwl_qosparam_cmd
*qos
)
1550 return iwl3945_send_cmd_pdu(priv
, REPLY_QOS_PARAM
,
1551 sizeof(struct iwl_qosparam_cmd
), qos
);
1554 static void iwl3945_activate_qos(struct iwl_priv
*priv
, u8 force
)
1556 unsigned long flags
;
1558 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
1561 spin_lock_irqsave(&priv
->lock
, flags
);
1562 priv
->qos_data
.def_qos_parm
.qos_flags
= 0;
1564 if (priv
->qos_data
.qos_cap
.q_AP
.queue_request
&&
1565 !priv
->qos_data
.qos_cap
.q_AP
.txop_request
)
1566 priv
->qos_data
.def_qos_parm
.qos_flags
|=
1567 QOS_PARAM_FLG_TXOP_TYPE_MSK
;
1569 if (priv
->qos_data
.qos_active
)
1570 priv
->qos_data
.def_qos_parm
.qos_flags
|=
1571 QOS_PARAM_FLG_UPDATE_EDCA_MSK
;
1573 spin_unlock_irqrestore(&priv
->lock
, flags
);
1575 if (force
|| iwl3945_is_associated(priv
)) {
1576 IWL_DEBUG_QOS("send QoS cmd with QoS active %d \n",
1577 priv
->qos_data
.qos_active
);
1579 iwl3945_send_qos_params_command(priv
,
1580 &(priv
->qos_data
.def_qos_parm
));
1585 * Power management (not Tx power!) functions
1587 #define MSEC_TO_USEC 1024
1590 #define NOSLP __constant_cpu_to_le16(0), 0, 0
1591 #define SLP IWL_POWER_DRIVER_ALLOW_SLEEP_MSK, 0, 0
1592 #define SLP_TIMEOUT(T) __constant_cpu_to_le32((T) * MSEC_TO_USEC)
1593 #define SLP_VEC(X0, X1, X2, X3, X4) {__constant_cpu_to_le32(X0), \
1594 __constant_cpu_to_le32(X1), \
1595 __constant_cpu_to_le32(X2), \
1596 __constant_cpu_to_le32(X3), \
1597 __constant_cpu_to_le32(X4)}
1599 /* default power management (not Tx power) table values */
1601 static struct iwl_power_vec_entry range_0
[IWL39_POWER_AC
] = {
1602 {{NOSLP
, SLP_TIMEOUT(0), SLP_TIMEOUT(0), SLP_VEC(0, 0, 0, 0, 0)}, 0},
1603 {{SLP
, SLP_TIMEOUT(200), SLP_TIMEOUT(500), SLP_VEC(1, 2, 3, 4, 4)}, 0},
1604 {{SLP
, SLP_TIMEOUT(200), SLP_TIMEOUT(300), SLP_VEC(2, 4, 6, 7, 7)}, 0},
1605 {{SLP
, SLP_TIMEOUT(50), SLP_TIMEOUT(100), SLP_VEC(2, 6, 9, 9, 10)}, 0},
1606 {{SLP
, SLP_TIMEOUT(50), SLP_TIMEOUT(25), SLP_VEC(2, 7, 9, 9, 10)}, 1},
1607 {{SLP
, SLP_TIMEOUT(25), SLP_TIMEOUT(25), SLP_VEC(4, 7, 10, 10, 10)}, 1}
1611 static struct iwl_power_vec_entry range_1
[IWL39_POWER_AC
] = {
1612 {{NOSLP
, SLP_TIMEOUT(0), SLP_TIMEOUT(0), SLP_VEC(0, 0, 0, 0, 0)}, 0},
1613 {{SLP
, SLP_TIMEOUT(200), SLP_TIMEOUT(500),
1614 SLP_VEC(1, 2, 3, 4, 0xFF)}, 0},
1615 {{SLP
, SLP_TIMEOUT(200), SLP_TIMEOUT(300),
1616 SLP_VEC(2, 4, 6, 7, 0xFF)}, 0},
1617 {{SLP
, SLP_TIMEOUT(50), SLP_TIMEOUT(100),
1618 SLP_VEC(2, 6, 9, 9, 0xFF)}, 0},
1619 {{SLP
, SLP_TIMEOUT(50), SLP_TIMEOUT(25), SLP_VEC(2, 7, 9, 9, 0xFF)}, 0},
1620 {{SLP
, SLP_TIMEOUT(25), SLP_TIMEOUT(25),
1621 SLP_VEC(4, 7, 10, 10, 0xFF)}, 0}
1624 int iwl3945_power_init_handle(struct iwl_priv
*priv
)
1627 struct iwl3945_power_mgr
*pow_data
;
1628 int size
= sizeof(struct iwl_power_vec_entry
) * IWL39_POWER_AC
;
1631 IWL_DEBUG_POWER("Initialize power \n");
1633 pow_data
= &(priv
->power_data_39
);
1635 memset(pow_data
, 0, sizeof(*pow_data
));
1637 pow_data
->active_index
= IWL_POWER_RANGE_0
;
1638 pow_data
->dtim_val
= 0xffff;
1640 memcpy(&pow_data
->pwr_range_0
[0], &range_0
[0], size
);
1641 memcpy(&pow_data
->pwr_range_1
[0], &range_1
[0], size
);
1643 rc
= pci_read_config_word(priv
->pci_dev
, PCI_LINK_CTRL
, &pci_pm
);
1647 struct iwl_powertable_cmd
*cmd
;
1649 IWL_DEBUG_POWER("adjust power command flags\n");
1651 for (i
= 0; i
< IWL39_POWER_AC
; i
++) {
1652 cmd
= &pow_data
->pwr_range_0
[i
].cmd
;
1655 cmd
->flags
&= ~IWL_POWER_PCI_PM_MSK
;
1657 cmd
->flags
|= IWL_POWER_PCI_PM_MSK
;
1663 static int iwl3945_update_power_cmd(struct iwl_priv
*priv
,
1664 struct iwl_powertable_cmd
*cmd
, u32 mode
)
1669 struct iwl_power_vec_entry
*range
;
1671 struct iwl3945_power_mgr
*pow_data
;
1673 if (mode
> IWL_POWER_INDEX_5
) {
1674 IWL_DEBUG_POWER("Error invalid power mode \n");
1677 pow_data
= &(priv
->power_data_39
);
1679 if (pow_data
->active_index
== IWL_POWER_RANGE_0
)
1680 range
= &pow_data
->pwr_range_0
[0];
1682 range
= &pow_data
->pwr_range_1
[1];
1684 memcpy(cmd
, &range
[mode
].cmd
, sizeof(struct iwl3945_powertable_cmd
));
1686 #ifdef IWL_MAC80211_DISABLE
1687 if (priv
->assoc_network
!= NULL
) {
1688 unsigned long flags
;
1690 period
= priv
->assoc_network
->tim
.tim_period
;
1692 #endif /*IWL_MAC80211_DISABLE */
1693 skip
= range
[mode
].no_dtim
;
1702 cmd
->flags
&= ~IWL_POWER_SLEEP_OVER_DTIM_MSK
;
1704 __le32 slp_itrvl
= cmd
->sleep_interval
[IWL_POWER_VEC_SIZE
- 1];
1705 max_sleep
= (le32_to_cpu(slp_itrvl
) / period
) * period
;
1706 cmd
->flags
|= IWL_POWER_SLEEP_OVER_DTIM_MSK
;
1709 for (i
= 0; i
< IWL_POWER_VEC_SIZE
; i
++) {
1710 if (le32_to_cpu(cmd
->sleep_interval
[i
]) > max_sleep
)
1711 cmd
->sleep_interval
[i
] = cpu_to_le32(max_sleep
);
1714 IWL_DEBUG_POWER("Flags value = 0x%08X\n", cmd
->flags
);
1715 IWL_DEBUG_POWER("Tx timeout = %u\n", le32_to_cpu(cmd
->tx_data_timeout
));
1716 IWL_DEBUG_POWER("Rx timeout = %u\n", le32_to_cpu(cmd
->rx_data_timeout
));
1717 IWL_DEBUG_POWER("Sleep interval vector = { %d , %d , %d , %d , %d }\n",
1718 le32_to_cpu(cmd
->sleep_interval
[0]),
1719 le32_to_cpu(cmd
->sleep_interval
[1]),
1720 le32_to_cpu(cmd
->sleep_interval
[2]),
1721 le32_to_cpu(cmd
->sleep_interval
[3]),
1722 le32_to_cpu(cmd
->sleep_interval
[4]));
1727 static int iwl3945_send_power_mode(struct iwl_priv
*priv
, u32 mode
)
1729 u32
uninitialized_var(final_mode
);
1731 struct iwl_powertable_cmd cmd
;
1733 /* If on battery, set to 3,
1734 * if plugged into AC power, set to CAM ("continuously aware mode"),
1735 * else user level */
1737 case IWL39_POWER_BATTERY
:
1738 final_mode
= IWL_POWER_INDEX_3
;
1740 case IWL39_POWER_AC
:
1741 final_mode
= IWL_POWER_MODE_CAM
;
1748 iwl3945_update_power_cmd(priv
, &cmd
, final_mode
);
1750 /* FIXME use get_hcmd_size 3945 command is 4 bytes shorter */
1751 rc
= iwl3945_send_cmd_pdu(priv
, POWER_TABLE_CMD
,
1752 sizeof(struct iwl3945_powertable_cmd
), &cmd
);
1754 if (final_mode
== IWL_POWER_MODE_CAM
)
1755 clear_bit(STATUS_POWER_PMI
, &priv
->status
);
1757 set_bit(STATUS_POWER_PMI
, &priv
->status
);
1763 * iwl3945_scan_cancel - Cancel any currently executing HW scan
1765 * NOTE: priv->mutex is not required before calling this function
1767 static int iwl3945_scan_cancel(struct iwl_priv
*priv
)
1769 if (!test_bit(STATUS_SCAN_HW
, &priv
->status
)) {
1770 clear_bit(STATUS_SCANNING
, &priv
->status
);
1774 if (test_bit(STATUS_SCANNING
, &priv
->status
)) {
1775 if (!test_bit(STATUS_SCAN_ABORTING
, &priv
->status
)) {
1776 IWL_DEBUG_SCAN("Queuing scan abort.\n");
1777 set_bit(STATUS_SCAN_ABORTING
, &priv
->status
);
1778 queue_work(priv
->workqueue
, &priv
->abort_scan
);
1781 IWL_DEBUG_SCAN("Scan abort already in progress.\n");
1783 return test_bit(STATUS_SCANNING
, &priv
->status
);
1790 * iwl3945_scan_cancel_timeout - Cancel any currently executing HW scan
1791 * @ms: amount of time to wait (in milliseconds) for scan to abort
1793 * NOTE: priv->mutex must be held before calling this function
1795 static int iwl3945_scan_cancel_timeout(struct iwl_priv
*priv
, unsigned long ms
)
1797 unsigned long now
= jiffies
;
1800 ret
= iwl3945_scan_cancel(priv
);
1802 mutex_unlock(&priv
->mutex
);
1803 while (!time_after(jiffies
, now
+ msecs_to_jiffies(ms
)) &&
1804 test_bit(STATUS_SCANNING
, &priv
->status
))
1806 mutex_lock(&priv
->mutex
);
1808 return test_bit(STATUS_SCANNING
, &priv
->status
);
1814 #define MAX_UCODE_BEACON_INTERVAL 1024
1815 #define INTEL_CONN_LISTEN_INTERVAL __constant_cpu_to_le16(0xA)
1817 static __le16
iwl3945_adjust_beacon_interval(u16 beacon_val
)
1820 u16 beacon_factor
= 0;
1823 (beacon_val
+ MAX_UCODE_BEACON_INTERVAL
)
1824 / MAX_UCODE_BEACON_INTERVAL
;
1825 new_val
= beacon_val
/ beacon_factor
;
1827 return cpu_to_le16(new_val
);
1830 static void iwl3945_setup_rxon_timing(struct iwl_priv
*priv
)
1832 u64 interval_tm_unit
;
1834 unsigned long flags
;
1835 struct ieee80211_conf
*conf
= NULL
;
1838 conf
= ieee80211_get_hw_conf(priv
->hw
);
1840 spin_lock_irqsave(&priv
->lock
, flags
);
1841 priv
->rxon_timing
.timestamp
= cpu_to_le64(priv
->timestamp
);
1842 priv
->rxon_timing
.listen_interval
= INTEL_CONN_LISTEN_INTERVAL
;
1844 tsf
= priv
->timestamp
;
1846 beacon_int
= priv
->beacon_int
;
1847 spin_unlock_irqrestore(&priv
->lock
, flags
);
1849 if (priv
->iw_mode
== NL80211_IFTYPE_STATION
) {
1850 if (beacon_int
== 0) {
1851 priv
->rxon_timing
.beacon_interval
= cpu_to_le16(100);
1852 priv
->rxon_timing
.beacon_init_val
= cpu_to_le32(102400);
1854 priv
->rxon_timing
.beacon_interval
=
1855 cpu_to_le16(beacon_int
);
1856 priv
->rxon_timing
.beacon_interval
=
1857 iwl3945_adjust_beacon_interval(
1858 le16_to_cpu(priv
->rxon_timing
.beacon_interval
));
1861 priv
->rxon_timing
.atim_window
= 0;
1863 priv
->rxon_timing
.beacon_interval
=
1864 iwl3945_adjust_beacon_interval(conf
->beacon_int
);
1865 /* TODO: we need to get atim_window from upper stack
1866 * for now we set to 0 */
1867 priv
->rxon_timing
.atim_window
= 0;
1871 (le16_to_cpu(priv
->rxon_timing
.beacon_interval
) * 1024);
1872 result
= do_div(tsf
, interval_tm_unit
);
1873 priv
->rxon_timing
.beacon_init_val
=
1874 cpu_to_le32((u32
) ((u64
) interval_tm_unit
- result
));
1877 ("beacon interval %d beacon timer %d beacon tim %d\n",
1878 le16_to_cpu(priv
->rxon_timing
.beacon_interval
),
1879 le32_to_cpu(priv
->rxon_timing
.beacon_init_val
),
1880 le16_to_cpu(priv
->rxon_timing
.atim_window
));
1883 static int iwl3945_scan_initiate(struct iwl_priv
*priv
)
1885 if (!iwl_is_ready_rf(priv
)) {
1886 IWL_DEBUG_SCAN("Aborting scan due to not ready.\n");
1890 if (test_bit(STATUS_SCANNING
, &priv
->status
)) {
1891 IWL_DEBUG_SCAN("Scan already in progress.\n");
1895 if (test_bit(STATUS_SCAN_ABORTING
, &priv
->status
)) {
1896 IWL_DEBUG_SCAN("Scan request while abort pending. "
1901 IWL_DEBUG_INFO("Starting scan...\n");
1902 if (priv
->cfg
->sku
& IWL_SKU_G
)
1903 priv
->scan_bands
|= BIT(IEEE80211_BAND_2GHZ
);
1904 if (priv
->cfg
->sku
& IWL_SKU_A
)
1905 priv
->scan_bands
|= BIT(IEEE80211_BAND_5GHZ
);
1906 set_bit(STATUS_SCANNING
, &priv
->status
);
1907 priv
->scan_start
= jiffies
;
1908 priv
->scan_pass_start
= priv
->scan_start
;
1910 queue_work(priv
->workqueue
, &priv
->request_scan
);
1915 static int iwl3945_set_rxon_hwcrypto(struct iwl_priv
*priv
, int hw_decrypt
)
1917 struct iwl3945_rxon_cmd
*rxon
= &priv
->staging39_rxon
;
1920 rxon
->filter_flags
&= ~RXON_FILTER_DIS_DECRYPT_MSK
;
1922 rxon
->filter_flags
|= RXON_FILTER_DIS_DECRYPT_MSK
;
1927 static void iwl3945_set_flags_for_phymode(struct iwl_priv
*priv
,
1928 enum ieee80211_band band
)
1930 if (band
== IEEE80211_BAND_5GHZ
) {
1931 priv
->staging39_rxon
.flags
&=
1932 ~(RXON_FLG_BAND_24G_MSK
| RXON_FLG_AUTO_DETECT_MSK
1933 | RXON_FLG_CCK_MSK
);
1934 priv
->staging39_rxon
.flags
|= RXON_FLG_SHORT_SLOT_MSK
;
1936 /* Copied from iwl3945_bg_post_associate() */
1937 if (priv
->assoc_capability
& WLAN_CAPABILITY_SHORT_SLOT_TIME
)
1938 priv
->staging39_rxon
.flags
|= RXON_FLG_SHORT_SLOT_MSK
;
1940 priv
->staging39_rxon
.flags
&= ~RXON_FLG_SHORT_SLOT_MSK
;
1942 if (priv
->iw_mode
== NL80211_IFTYPE_ADHOC
)
1943 priv
->staging39_rxon
.flags
&= ~RXON_FLG_SHORT_SLOT_MSK
;
1945 priv
->staging39_rxon
.flags
|= RXON_FLG_BAND_24G_MSK
;
1946 priv
->staging39_rxon
.flags
|= RXON_FLG_AUTO_DETECT_MSK
;
1947 priv
->staging39_rxon
.flags
&= ~RXON_FLG_CCK_MSK
;
1952 * initialize rxon structure with default values from eeprom
1954 static void iwl3945_connection_init_rx_config(struct iwl_priv
*priv
,
1957 const struct iwl_channel_info
*ch_info
;
1959 memset(&priv
->staging39_rxon
, 0, sizeof(priv
->staging39_rxon
));
1962 case NL80211_IFTYPE_AP
:
1963 priv
->staging39_rxon
.dev_type
= RXON_DEV_TYPE_AP
;
1966 case NL80211_IFTYPE_STATION
:
1967 priv
->staging39_rxon
.dev_type
= RXON_DEV_TYPE_ESS
;
1968 priv
->staging39_rxon
.filter_flags
= RXON_FILTER_ACCEPT_GRP_MSK
;
1971 case NL80211_IFTYPE_ADHOC
:
1972 priv
->staging39_rxon
.dev_type
= RXON_DEV_TYPE_IBSS
;
1973 priv
->staging39_rxon
.flags
= RXON_FLG_SHORT_PREAMBLE_MSK
;
1974 priv
->staging39_rxon
.filter_flags
= RXON_FILTER_BCON_AWARE_MSK
|
1975 RXON_FILTER_ACCEPT_GRP_MSK
;
1978 case NL80211_IFTYPE_MONITOR
:
1979 priv
->staging39_rxon
.dev_type
= RXON_DEV_TYPE_SNIFFER
;
1980 priv
->staging39_rxon
.filter_flags
= RXON_FILTER_PROMISC_MSK
|
1981 RXON_FILTER_CTL2HOST_MSK
| RXON_FILTER_ACCEPT_GRP_MSK
;
1984 IWL_ERR(priv
, "Unsupported interface type %d\n", mode
);
1989 /* TODO: Figure out when short_preamble would be set and cache from
1991 if (!hw_to_local(priv
->hw
)->short_preamble
)
1992 priv
->staging39_rxon
.flags
&= ~RXON_FLG_SHORT_PREAMBLE_MSK
;
1994 priv
->staging39_rxon
.flags
|= RXON_FLG_SHORT_PREAMBLE_MSK
;
1997 ch_info
= iwl3945_get_channel_info(priv
, priv
->band
,
1998 le16_to_cpu(priv
->active39_rxon
.channel
));
2001 ch_info
= &priv
->channel_info
[0];
2004 * in some case A channels are all non IBSS
2005 * in this case force B/G channel
2007 if ((mode
== NL80211_IFTYPE_ADHOC
) && !(is_channel_ibss(ch_info
)))
2008 ch_info
= &priv
->channel_info
[0];
2010 priv
->staging39_rxon
.channel
= cpu_to_le16(ch_info
->channel
);
2011 if (is_channel_a_band(ch_info
))
2012 priv
->band
= IEEE80211_BAND_5GHZ
;
2014 priv
->band
= IEEE80211_BAND_2GHZ
;
2016 iwl3945_set_flags_for_phymode(priv
, priv
->band
);
2018 priv
->staging39_rxon
.ofdm_basic_rates
=
2019 (IWL_OFDM_RATES_MASK
>> IWL_FIRST_OFDM_RATE
) & 0xFF;
2020 priv
->staging39_rxon
.cck_basic_rates
=
2021 (IWL_CCK_RATES_MASK
>> IWL_FIRST_CCK_RATE
) & 0xF;
2024 static int iwl3945_set_mode(struct iwl_priv
*priv
, int mode
)
2026 if (mode
== NL80211_IFTYPE_ADHOC
) {
2027 const struct iwl_channel_info
*ch_info
;
2029 ch_info
= iwl3945_get_channel_info(priv
,
2031 le16_to_cpu(priv
->staging39_rxon
.channel
));
2033 if (!ch_info
|| !is_channel_ibss(ch_info
)) {
2034 IWL_ERR(priv
, "channel %d not IBSS channel\n",
2035 le16_to_cpu(priv
->staging39_rxon
.channel
));
2040 iwl3945_connection_init_rx_config(priv
, mode
);
2041 memcpy(priv
->staging39_rxon
.node_addr
, priv
->mac_addr
, ETH_ALEN
);
2043 iwl3945_clear_stations_table(priv
);
2045 /* don't commit rxon if rf-kill is on*/
2046 if (!iwl_is_ready_rf(priv
))
2049 cancel_delayed_work(&priv
->scan_check
);
2050 if (iwl3945_scan_cancel_timeout(priv
, 100)) {
2051 IWL_WARN(priv
, "Aborted scan still in progress after 100ms\n");
2052 IWL_DEBUG_MAC80211("leaving - scan abort failed.\n");
2056 iwl3945_commit_rxon(priv
);
2061 static void iwl3945_build_tx_cmd_hwcrypto(struct iwl_priv
*priv
,
2062 struct ieee80211_tx_info
*info
,
2063 struct iwl_cmd
*cmd
,
2064 struct sk_buff
*skb_frag
,
2067 struct iwl3945_hw_key
*keyinfo
=
2068 &priv
->stations_39
[info
->control
.hw_key
->hw_key_idx
].keyinfo
;
2070 switch (keyinfo
->alg
) {
2072 cmd
->cmd
.tx
.sec_ctl
= TX_CMD_SEC_CCM
;
2073 memcpy(cmd
->cmd
.tx
.key
, keyinfo
->key
, keyinfo
->keylen
);
2074 IWL_DEBUG_TX("tx_cmd with AES hwcrypto\n");
2079 cmd
->cmd
.tx
.sec_ctl
= TX_CMD_SEC_TKIP
;
2082 memcpy(cmd
->cmd
.tx
.tkip_mic
.byte
, skb_frag
->tail
- 8,
2085 memset(cmd
->cmd
.tx
.tkip_mic
.byte
, 0, 8);
2090 cmd
->cmd
.tx
.sec_ctl
= TX_CMD_SEC_WEP
|
2091 (info
->control
.hw_key
->hw_key_idx
& TX_CMD_SEC_MSK
) << TX_CMD_SEC_SHIFT
;
2093 if (keyinfo
->keylen
== 13)
2094 cmd
->cmd
.tx
.sec_ctl
|= TX_CMD_SEC_KEY128
;
2096 memcpy(&cmd
->cmd
.tx
.key
[3], keyinfo
->key
, keyinfo
->keylen
);
2098 IWL_DEBUG_TX("Configuring packet for WEP encryption "
2099 "with key %d\n", info
->control
.hw_key
->hw_key_idx
);
2103 IWL_ERR(priv
, "Unknown encode alg %d\n", keyinfo
->alg
);
2109 * handle build REPLY_TX command notification.
2111 static void iwl3945_build_tx_cmd_basic(struct iwl_priv
*priv
,
2112 struct iwl_cmd
*cmd
,
2113 struct ieee80211_tx_info
*info
,
2114 struct ieee80211_hdr
*hdr
,
2115 int is_unicast
, u8 std_id
)
2117 __le16 fc
= hdr
->frame_control
;
2118 __le32 tx_flags
= cmd
->cmd
.tx
.tx_flags
;
2119 u8 rc_flags
= info
->control
.rates
[0].flags
;
2121 cmd
->cmd
.tx
.stop_time
.life_time
= TX_CMD_LIFE_TIME_INFINITE
;
2122 if (!(info
->flags
& IEEE80211_TX_CTL_NO_ACK
)) {
2123 tx_flags
|= TX_CMD_FLG_ACK_MSK
;
2124 if (ieee80211_is_mgmt(fc
))
2125 tx_flags
|= TX_CMD_FLG_SEQ_CTL_MSK
;
2126 if (ieee80211_is_probe_resp(fc
) &&
2127 !(le16_to_cpu(hdr
->seq_ctrl
) & 0xf))
2128 tx_flags
|= TX_CMD_FLG_TSF_MSK
;
2130 tx_flags
&= (~TX_CMD_FLG_ACK_MSK
);
2131 tx_flags
|= TX_CMD_FLG_SEQ_CTL_MSK
;
2134 cmd
->cmd
.tx
.sta_id
= std_id
;
2135 if (ieee80211_has_morefrags(fc
))
2136 tx_flags
|= TX_CMD_FLG_MORE_FRAG_MSK
;
2138 if (ieee80211_is_data_qos(fc
)) {
2139 u8
*qc
= ieee80211_get_qos_ctl(hdr
);
2140 cmd
->cmd
.tx
.tid_tspec
= qc
[0] & 0xf;
2141 tx_flags
&= ~TX_CMD_FLG_SEQ_CTL_MSK
;
2143 tx_flags
|= TX_CMD_FLG_SEQ_CTL_MSK
;
2146 if (rc_flags
& IEEE80211_TX_RC_USE_RTS_CTS
) {
2147 tx_flags
|= TX_CMD_FLG_RTS_MSK
;
2148 tx_flags
&= ~TX_CMD_FLG_CTS_MSK
;
2149 } else if (rc_flags
& IEEE80211_TX_RC_USE_CTS_PROTECT
) {
2150 tx_flags
&= ~TX_CMD_FLG_RTS_MSK
;
2151 tx_flags
|= TX_CMD_FLG_CTS_MSK
;
2154 if ((tx_flags
& TX_CMD_FLG_RTS_MSK
) || (tx_flags
& TX_CMD_FLG_CTS_MSK
))
2155 tx_flags
|= TX_CMD_FLG_FULL_TXOP_PROT_MSK
;
2157 tx_flags
&= ~(TX_CMD_FLG_ANT_SEL_MSK
);
2158 if (ieee80211_is_mgmt(fc
)) {
2159 if (ieee80211_is_assoc_req(fc
) || ieee80211_is_reassoc_req(fc
))
2160 cmd
->cmd
.tx
.timeout
.pm_frame_timeout
= cpu_to_le16(3);
2162 cmd
->cmd
.tx
.timeout
.pm_frame_timeout
= cpu_to_le16(2);
2164 cmd
->cmd
.tx
.timeout
.pm_frame_timeout
= 0;
2165 #ifdef CONFIG_IWL3945_LEDS
2166 priv
->rxtxpackets
+= le16_to_cpu(cmd
->cmd
.tx
.len
);
2170 cmd
->cmd
.tx
.driver_txop
= 0;
2171 cmd
->cmd
.tx
.tx_flags
= tx_flags
;
2172 cmd
->cmd
.tx
.next_frame_len
= 0;
2176 * iwl3945_get_sta_id - Find station's index within station table
2178 static int iwl3945_get_sta_id(struct iwl_priv
*priv
, struct ieee80211_hdr
*hdr
)
2181 u16 fc
= le16_to_cpu(hdr
->frame_control
);
2183 /* If this frame is broadcast or management, use broadcast station id */
2184 if (((fc
& IEEE80211_FCTL_FTYPE
) != IEEE80211_FTYPE_DATA
) ||
2185 is_multicast_ether_addr(hdr
->addr1
))
2186 return priv
->hw_params
.bcast_sta_id
;
2188 switch (priv
->iw_mode
) {
2190 /* If we are a client station in a BSS network, use the special
2191 * AP station entry (that's the only station we communicate with) */
2192 case NL80211_IFTYPE_STATION
:
2195 /* If we are an AP, then find the station, or use BCAST */
2196 case NL80211_IFTYPE_AP
:
2197 sta_id
= iwl3945_hw_find_station(priv
, hdr
->addr1
);
2198 if (sta_id
!= IWL_INVALID_STATION
)
2200 return priv
->hw_params
.bcast_sta_id
;
2202 /* If this frame is going out to an IBSS network, find the station,
2203 * or create a new station table entry */
2204 case NL80211_IFTYPE_ADHOC
: {
2205 /* Create new station table entry */
2206 sta_id
= iwl3945_hw_find_station(priv
, hdr
->addr1
);
2207 if (sta_id
!= IWL_INVALID_STATION
)
2210 sta_id
= iwl3945_add_station(priv
, hdr
->addr1
, 0, CMD_ASYNC
);
2212 if (sta_id
!= IWL_INVALID_STATION
)
2215 IWL_DEBUG_DROP("Station %pM not in station map. "
2216 "Defaulting to broadcast...\n",
2218 iwl_print_hex_dump(priv
, IWL_DL_DROP
, (u8
*) hdr
, sizeof(*hdr
));
2219 return priv
->hw_params
.bcast_sta_id
;
2221 /* If we are in monitor mode, use BCAST. This is required for
2222 * packet injection. */
2223 case NL80211_IFTYPE_MONITOR
:
2224 return priv
->hw_params
.bcast_sta_id
;
2227 IWL_WARN(priv
, "Unknown mode of operation: %d\n",
2229 return priv
->hw_params
.bcast_sta_id
;
2234 * start REPLY_TX command process
2236 static int iwl3945_tx_skb(struct iwl_priv
*priv
, struct sk_buff
*skb
)
2238 struct ieee80211_hdr
*hdr
= (struct ieee80211_hdr
*)skb
->data
;
2239 struct ieee80211_tx_info
*info
= IEEE80211_SKB_CB(skb
);
2240 struct iwl3945_tfd_frame
*tfd
;
2242 int txq_id
= skb_get_queue_mapping(skb
);
2243 struct iwl3945_tx_queue
*txq
= NULL
;
2244 struct iwl_queue
*q
= NULL
;
2245 dma_addr_t phys_addr
;
2246 dma_addr_t txcmd_phys
;
2247 struct iwl_cmd
*out_cmd
= NULL
;
2248 u16 len
, idx
, len_org
, hdr_len
;
2255 u8 wait_write_ptr
= 0;
2257 unsigned long flags
;
2260 spin_lock_irqsave(&priv
->lock
, flags
);
2261 if (iwl_is_rfkill(priv
)) {
2262 IWL_DEBUG_DROP("Dropping - RF KILL\n");
2266 if ((ieee80211_get_tx_rate(priv
->hw
, info
)->hw_value
& 0xFF) == IWL_INVALID_RATE
) {
2267 IWL_ERR(priv
, "ERROR: No TX rate available.\n");
2271 unicast
= !is_multicast_ether_addr(hdr
->addr1
);
2274 fc
= hdr
->frame_control
;
2276 #ifdef CONFIG_IWL3945_DEBUG
2277 if (ieee80211_is_auth(fc
))
2278 IWL_DEBUG_TX("Sending AUTH frame\n");
2279 else if (ieee80211_is_assoc_req(fc
))
2280 IWL_DEBUG_TX("Sending ASSOC frame\n");
2281 else if (ieee80211_is_reassoc_req(fc
))
2282 IWL_DEBUG_TX("Sending REASSOC frame\n");
2285 /* drop all data frame if we are not associated */
2286 if (ieee80211_is_data(fc
) &&
2287 (priv
->iw_mode
!= NL80211_IFTYPE_MONITOR
) && /* packet injection */
2288 (!iwl3945_is_associated(priv
) ||
2289 ((priv
->iw_mode
== NL80211_IFTYPE_STATION
) && !priv
->assoc_id
))) {
2290 IWL_DEBUG_DROP("Dropping - !iwl3945_is_associated\n");
2294 spin_unlock_irqrestore(&priv
->lock
, flags
);
2296 hdr_len
= ieee80211_hdrlen(fc
);
2298 /* Find (or create) index into station table for destination station */
2299 sta_id
= iwl3945_get_sta_id(priv
, hdr
);
2300 if (sta_id
== IWL_INVALID_STATION
) {
2301 IWL_DEBUG_DROP("Dropping - INVALID STATION: %pM\n",
2306 IWL_DEBUG_RATE("station Id %d\n", sta_id
);
2308 if (ieee80211_is_data_qos(fc
)) {
2309 qc
= ieee80211_get_qos_ctl(hdr
);
2310 tid
= qc
[0] & IEEE80211_QOS_CTL_TID_MASK
;
2311 seq_number
= priv
->stations_39
[sta_id
].tid
[tid
].seq_number
&
2313 hdr
->seq_ctrl
= cpu_to_le16(seq_number
) |
2315 __constant_cpu_to_le16(IEEE80211_SCTL_FRAG
));
2319 /* Descriptor for chosen Tx queue */
2320 txq
= &priv
->txq39
[txq_id
];
2323 spin_lock_irqsave(&priv
->lock
, flags
);
2325 /* Set up first empty TFD within this queue's circular TFD buffer */
2326 tfd
= &txq
->bd
[q
->write_ptr
];
2327 memset(tfd
, 0, sizeof(*tfd
));
2328 control_flags
= (u32
*) tfd
;
2329 idx
= get_cmd_index(q
, q
->write_ptr
, 0);
2331 /* Set up driver data for this TFD */
2332 memset(&(txq
->txb
[q
->write_ptr
]), 0, sizeof(struct iwl3945_tx_info
));
2333 txq
->txb
[q
->write_ptr
].skb
[0] = skb
;
2335 /* Init first empty entry in queue's array of Tx/cmd buffers */
2336 out_cmd
= &txq
->cmd
[idx
];
2337 memset(&out_cmd
->hdr
, 0, sizeof(out_cmd
->hdr
));
2338 memset(&out_cmd
->cmd
.tx
, 0, sizeof(out_cmd
->cmd
.tx
));
2341 * Set up the Tx-command (not MAC!) header.
2342 * Store the chosen Tx queue and TFD index within the sequence field;
2343 * after Tx, uCode's Tx response will return this value so driver can
2344 * locate the frame within the tx queue and do post-tx processing.
2346 out_cmd
->hdr
.cmd
= REPLY_TX
;
2347 out_cmd
->hdr
.sequence
= cpu_to_le16((u16
)(QUEUE_TO_SEQ(txq_id
) |
2348 INDEX_TO_SEQ(q
->write_ptr
)));
2350 /* Copy MAC header from skb into command buffer */
2351 memcpy(out_cmd
->cmd
.tx
.hdr
, hdr
, hdr_len
);
2354 * Use the first empty entry in this queue's command buffer array
2355 * to contain the Tx command and MAC header concatenated together
2356 * (payload data will be in another buffer).
2357 * Size of this varies, due to varying MAC header length.
2358 * If end is not dword aligned, we'll have 2 extra bytes at the end
2359 * of the MAC header (device reads on dword boundaries).
2360 * We'll tell device about this padding later.
2362 len
= sizeof(struct iwl3945_tx_cmd
) +
2363 sizeof(struct iwl_cmd_header
) + hdr_len
;
2366 len
= (len
+ 3) & ~3;
2373 /* Physical address of this Tx command's header (not MAC header!),
2374 * within command buffer array. */
2375 txcmd_phys
= txq
->dma_addr_cmd
+ sizeof(struct iwl_cmd
) * idx
+
2376 offsetof(struct iwl_cmd
, hdr
);
2378 /* Add buffer containing Tx command and MAC(!) header to TFD's
2380 iwl3945_hw_txq_attach_buf_to_tfd(priv
, tfd
, txcmd_phys
, len
);
2382 if (info
->control
.hw_key
)
2383 iwl3945_build_tx_cmd_hwcrypto(priv
, info
, out_cmd
, skb
, 0);
2385 /* Set up TFD's 2nd entry to point directly to remainder of skb,
2386 * if any (802.11 null frames have no payload). */
2387 len
= skb
->len
- hdr_len
;
2389 phys_addr
= pci_map_single(priv
->pci_dev
, skb
->data
+ hdr_len
,
2390 len
, PCI_DMA_TODEVICE
);
2391 iwl3945_hw_txq_attach_buf_to_tfd(priv
, tfd
, phys_addr
, len
);
2395 /* If there is no payload, then we use only one Tx buffer */
2396 *control_flags
= TFD_CTL_COUNT_SET(1);
2398 /* Else use 2 buffers.
2399 * Tell 3945 about any padding after MAC header */
2400 *control_flags
= TFD_CTL_COUNT_SET(2) |
2401 TFD_CTL_PAD_SET(U32_PAD(len
));
2403 /* Total # bytes to be transmitted */
2404 len
= (u16
)skb
->len
;
2405 out_cmd
->cmd
.tx
.len
= cpu_to_le16(len
);
2407 /* TODO need this for burst mode later on */
2408 iwl3945_build_tx_cmd_basic(priv
, out_cmd
, info
, hdr
, unicast
, sta_id
);
2410 /* set is_hcca to 0; it probably will never be implemented */
2411 iwl3945_hw_build_tx_cmd_rate(priv
, out_cmd
, info
, hdr
, sta_id
, 0);
2413 out_cmd
->cmd
.tx
.tx_flags
&= ~TX_CMD_FLG_ANT_A_MSK
;
2414 out_cmd
->cmd
.tx
.tx_flags
&= ~TX_CMD_FLG_ANT_B_MSK
;
2416 if (!ieee80211_has_morefrags(hdr
->frame_control
)) {
2417 txq
->need_update
= 1;
2419 priv
->stations_39
[sta_id
].tid
[tid
].seq_number
= seq_number
;
2422 txq
->need_update
= 0;
2425 iwl_print_hex_dump(priv
, IWL_DL_TX
, out_cmd
->cmd
.payload
,
2426 sizeof(out_cmd
->cmd
.tx
));
2428 iwl_print_hex_dump(priv
, IWL_DL_TX
, (u8
*)out_cmd
->cmd
.tx
.hdr
,
2429 ieee80211_hdrlen(fc
));
2431 /* Tell device the write index *just past* this latest filled TFD */
2432 q
->write_ptr
= iwl_queue_inc_wrap(q
->write_ptr
, q
->n_bd
);
2433 rc
= iwl3945_tx_queue_update_write_ptr(priv
, txq
);
2434 spin_unlock_irqrestore(&priv
->lock
, flags
);
2439 if ((iwl_queue_space(q
) < q
->high_mark
)
2440 && priv
->mac80211_registered
) {
2441 if (wait_write_ptr
) {
2442 spin_lock_irqsave(&priv
->lock
, flags
);
2443 txq
->need_update
= 1;
2444 iwl3945_tx_queue_update_write_ptr(priv
, txq
);
2445 spin_unlock_irqrestore(&priv
->lock
, flags
);
2448 ieee80211_stop_queue(priv
->hw
, skb_get_queue_mapping(skb
));
2454 spin_unlock_irqrestore(&priv
->lock
, flags
);
2459 static void iwl3945_set_rate(struct iwl_priv
*priv
)
2461 const struct ieee80211_supported_band
*sband
= NULL
;
2462 struct ieee80211_rate
*rate
;
2465 sband
= iwl3945_get_band(priv
, priv
->band
);
2467 IWL_ERR(priv
, "Failed to set rate: unable to get hw mode\n");
2471 priv
->active_rate
= 0;
2472 priv
->active_rate_basic
= 0;
2474 IWL_DEBUG_RATE("Setting rates for %s GHz\n",
2475 sband
->band
== IEEE80211_BAND_2GHZ
? "2.4" : "5");
2477 for (i
= 0; i
< sband
->n_bitrates
; i
++) {
2478 rate
= &sband
->bitrates
[i
];
2479 if ((rate
->hw_value
< IWL_RATE_COUNT
) &&
2480 !(rate
->flags
& IEEE80211_CHAN_DISABLED
)) {
2481 IWL_DEBUG_RATE("Adding rate index %d (plcp %d)\n",
2482 rate
->hw_value
, iwl3945_rates
[rate
->hw_value
].plcp
);
2483 priv
->active_rate
|= (1 << rate
->hw_value
);
2487 IWL_DEBUG_RATE("Set active_rate = %0x, active_rate_basic = %0x\n",
2488 priv
->active_rate
, priv
->active_rate_basic
);
2491 * If a basic rate is configured, then use it (adding IWL_RATE_1M_MASK)
2492 * otherwise set it to the default of all CCK rates and 6, 12, 24 for
2495 if (priv
->active_rate_basic
& IWL_CCK_BASIC_RATES_MASK
)
2496 priv
->staging39_rxon
.cck_basic_rates
=
2497 ((priv
->active_rate_basic
&
2498 IWL_CCK_RATES_MASK
) >> IWL_FIRST_CCK_RATE
) & 0xF;
2500 priv
->staging39_rxon
.cck_basic_rates
=
2501 (IWL_CCK_BASIC_RATES_MASK
>> IWL_FIRST_CCK_RATE
) & 0xF;
2503 if (priv
->active_rate_basic
& IWL_OFDM_BASIC_RATES_MASK
)
2504 priv
->staging39_rxon
.ofdm_basic_rates
=
2505 ((priv
->active_rate_basic
&
2506 (IWL_OFDM_BASIC_RATES_MASK
| IWL_RATE_6M_MASK
)) >>
2507 IWL_FIRST_OFDM_RATE
) & 0xFF;
2509 priv
->staging39_rxon
.ofdm_basic_rates
=
2510 (IWL_OFDM_BASIC_RATES_MASK
>> IWL_FIRST_OFDM_RATE
) & 0xFF;
2513 static void iwl3945_radio_kill_sw(struct iwl_priv
*priv
, int disable_radio
)
2515 unsigned long flags
;
2517 if (!!disable_radio
== test_bit(STATUS_RF_KILL_SW
, &priv
->status
))
2520 IWL_DEBUG_RF_KILL("Manual SW RF KILL set to: RADIO %s\n",
2521 disable_radio
? "OFF" : "ON");
2523 if (disable_radio
) {
2524 iwl3945_scan_cancel(priv
);
2525 /* FIXME: This is a workaround for AP */
2526 if (priv
->iw_mode
!= NL80211_IFTYPE_AP
) {
2527 spin_lock_irqsave(&priv
->lock
, flags
);
2528 iwl_write32(priv
, CSR_UCODE_DRV_GP1_SET
,
2529 CSR_UCODE_SW_BIT_RFKILL
);
2530 spin_unlock_irqrestore(&priv
->lock
, flags
);
2531 iwl3945_send_card_state(priv
, CARD_STATE_CMD_DISABLE
, 0);
2532 set_bit(STATUS_RF_KILL_SW
, &priv
->status
);
2537 spin_lock_irqsave(&priv
->lock
, flags
);
2538 iwl_write32(priv
, CSR_UCODE_DRV_GP1_CLR
, CSR_UCODE_SW_BIT_RFKILL
);
2540 clear_bit(STATUS_RF_KILL_SW
, &priv
->status
);
2541 spin_unlock_irqrestore(&priv
->lock
, flags
);
2546 spin_lock_irqsave(&priv
->lock
, flags
);
2547 iwl_read32(priv
, CSR_UCODE_DRV_GP1
);
2548 if (!iwl_grab_nic_access(priv
))
2549 iwl_release_nic_access(priv
);
2550 spin_unlock_irqrestore(&priv
->lock
, flags
);
2552 if (test_bit(STATUS_RF_KILL_HW
, &priv
->status
)) {
2553 IWL_DEBUG_RF_KILL("Can not turn radio back on - "
2554 "disabled by HW switch\n");
2559 queue_work(priv
->workqueue
, &priv
->restart
);
2563 void iwl3945_set_decrypted_flag(struct iwl_priv
*priv
, struct sk_buff
*skb
,
2564 u32 decrypt_res
, struct ieee80211_rx_status
*stats
)
2567 le16_to_cpu(((struct ieee80211_hdr
*)skb
->data
)->frame_control
);
2569 if (priv
->active39_rxon
.filter_flags
& RXON_FILTER_DIS_DECRYPT_MSK
)
2572 if (!(fc
& IEEE80211_FCTL_PROTECTED
))
2575 IWL_DEBUG_RX("decrypt_res:0x%x\n", decrypt_res
);
2576 switch (decrypt_res
& RX_RES_STATUS_SEC_TYPE_MSK
) {
2577 case RX_RES_STATUS_SEC_TYPE_TKIP
:
2578 if ((decrypt_res
& RX_RES_STATUS_DECRYPT_TYPE_MSK
) ==
2579 RX_RES_STATUS_BAD_ICV_MIC
)
2580 stats
->flag
|= RX_FLAG_MMIC_ERROR
;
2581 case RX_RES_STATUS_SEC_TYPE_WEP
:
2582 case RX_RES_STATUS_SEC_TYPE_CCMP
:
2583 if ((decrypt_res
& RX_RES_STATUS_DECRYPT_TYPE_MSK
) ==
2584 RX_RES_STATUS_DECRYPT_OK
) {
2585 IWL_DEBUG_RX("hw decrypt successfully!!!\n");
2586 stats
->flag
|= RX_FLAG_DECRYPTED
;
2595 #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT
2597 #include "iwl-spectrum.h"
2599 #define BEACON_TIME_MASK_LOW 0x00FFFFFF
2600 #define BEACON_TIME_MASK_HIGH 0xFF000000
2601 #define TIME_UNIT 1024
2604 * extended beacon time format
2605 * time in usec will be changed into a 32-bit value in 8:24 format
2606 * the high 1 byte is the beacon counts
2607 * the lower 3 bytes is the time in usec within one beacon interval
2610 static u32
iwl3945_usecs_to_beacons(u32 usec
, u32 beacon_interval
)
2614 u32 interval
= beacon_interval
* 1024;
2616 if (!interval
|| !usec
)
2619 quot
= (usec
/ interval
) & (BEACON_TIME_MASK_HIGH
>> 24);
2620 rem
= (usec
% interval
) & BEACON_TIME_MASK_LOW
;
2622 return (quot
<< 24) + rem
;
2625 /* base is usually what we get from ucode with each received frame,
2626 * the same as HW timer counter counting down
2629 static __le32
iwl3945_add_beacon_time(u32 base
, u32 addon
, u32 beacon_interval
)
2631 u32 base_low
= base
& BEACON_TIME_MASK_LOW
;
2632 u32 addon_low
= addon
& BEACON_TIME_MASK_LOW
;
2633 u32 interval
= beacon_interval
* TIME_UNIT
;
2634 u32 res
= (base
& BEACON_TIME_MASK_HIGH
) +
2635 (addon
& BEACON_TIME_MASK_HIGH
);
2637 if (base_low
> addon_low
)
2638 res
+= base_low
- addon_low
;
2639 else if (base_low
< addon_low
) {
2640 res
+= interval
+ base_low
- addon_low
;
2645 return cpu_to_le32(res
);
2648 static int iwl3945_get_measurement(struct iwl_priv
*priv
,
2649 struct ieee80211_measurement_params
*params
,
2652 struct iwl_spectrum_cmd spectrum
;
2653 struct iwl_rx_packet
*res
;
2654 struct iwl_host_cmd cmd
= {
2655 .id
= REPLY_SPECTRUM_MEASUREMENT_CMD
,
2656 .data
= (void *)&spectrum
,
2657 .meta
.flags
= CMD_WANT_SKB
,
2659 u32 add_time
= le64_to_cpu(params
->start_time
);
2661 int spectrum_resp_status
;
2662 int duration
= le16_to_cpu(params
->duration
);
2664 if (iwl3945_is_associated(priv
))
2666 iwl3945_usecs_to_beacons(
2667 le64_to_cpu(params
->start_time
) - priv
->last_tsf
,
2668 le16_to_cpu(priv
->rxon_timing
.beacon_interval
));
2670 memset(&spectrum
, 0, sizeof(spectrum
));
2672 spectrum
.channel_count
= cpu_to_le16(1);
2674 RXON_FLG_TSF2HOST_MSK
| RXON_FLG_ANT_A_MSK
| RXON_FLG_DIS_DIV_MSK
;
2675 spectrum
.filter_flags
= MEASUREMENT_FILTER_FLAG
;
2676 cmd
.len
= sizeof(spectrum
);
2677 spectrum
.len
= cpu_to_le16(cmd
.len
- sizeof(spectrum
.len
));
2679 if (iwl3945_is_associated(priv
))
2680 spectrum
.start_time
=
2681 iwl3945_add_beacon_time(priv
->last_beacon_time
,
2683 le16_to_cpu(priv
->rxon_timing
.beacon_interval
));
2685 spectrum
.start_time
= 0;
2687 spectrum
.channels
[0].duration
= cpu_to_le32(duration
* TIME_UNIT
);
2688 spectrum
.channels
[0].channel
= params
->channel
;
2689 spectrum
.channels
[0].type
= type
;
2690 if (priv
->active39_rxon
.flags
& RXON_FLG_BAND_24G_MSK
)
2691 spectrum
.flags
|= RXON_FLG_BAND_24G_MSK
|
2692 RXON_FLG_AUTO_DETECT_MSK
| RXON_FLG_TGG_PROTECT_MSK
;
2694 rc
= iwl3945_send_cmd_sync(priv
, &cmd
);
2698 res
= (struct iwl_rx_packet
*)cmd
.meta
.u
.skb
->data
;
2699 if (res
->hdr
.flags
& IWL_CMD_FAILED_MSK
) {
2700 IWL_ERR(priv
, "Bad return from REPLY_RX_ON_ASSOC command\n");
2704 spectrum_resp_status
= le16_to_cpu(res
->u
.spectrum
.status
);
2705 switch (spectrum_resp_status
) {
2706 case 0: /* Command will be handled */
2707 if (res
->u
.spectrum
.id
!= 0xff) {
2708 IWL_DEBUG_INFO("Replaced existing measurement: %d\n",
2709 res
->u
.spectrum
.id
);
2710 priv
->measurement_status
&= ~MEASUREMENT_READY
;
2712 priv
->measurement_status
|= MEASUREMENT_ACTIVE
;
2716 case 1: /* Command will not be handled */
2721 dev_kfree_skb_any(cmd
.meta
.u
.skb
);
2727 static void iwl3945_rx_reply_alive(struct iwl_priv
*priv
,
2728 struct iwl_rx_mem_buffer
*rxb
)
2730 struct iwl_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
2731 struct iwl_alive_resp
*palive
;
2732 struct delayed_work
*pwork
;
2734 palive
= &pkt
->u
.alive_frame
;
2736 IWL_DEBUG_INFO("Alive ucode status 0x%08X revision "
2738 palive
->is_valid
, palive
->ver_type
,
2739 palive
->ver_subtype
);
2741 if (palive
->ver_subtype
== INITIALIZE_SUBTYPE
) {
2742 IWL_DEBUG_INFO("Initialization Alive received.\n");
2743 memcpy(&priv
->card_alive_init
, &pkt
->u
.alive_frame
,
2744 sizeof(struct iwl_alive_resp
));
2745 pwork
= &priv
->init_alive_start
;
2747 IWL_DEBUG_INFO("Runtime Alive received.\n");
2748 memcpy(&priv
->card_alive
, &pkt
->u
.alive_frame
,
2749 sizeof(struct iwl_alive_resp
));
2750 pwork
= &priv
->alive_start
;
2751 iwl3945_disable_events(priv
);
2754 /* We delay the ALIVE response by 5ms to
2755 * give the HW RF Kill time to activate... */
2756 if (palive
->is_valid
== UCODE_VALID_OK
)
2757 queue_delayed_work(priv
->workqueue
, pwork
,
2758 msecs_to_jiffies(5));
2760 IWL_WARN(priv
, "uCode did not respond OK.\n");
2763 static void iwl3945_rx_reply_add_sta(struct iwl_priv
*priv
,
2764 struct iwl_rx_mem_buffer
*rxb
)
2766 struct iwl_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
2768 IWL_DEBUG_RX("Received REPLY_ADD_STA: 0x%02X\n", pkt
->u
.status
);
2772 static void iwl3945_rx_reply_error(struct iwl_priv
*priv
,
2773 struct iwl_rx_mem_buffer
*rxb
)
2775 struct iwl_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
2777 IWL_ERR(priv
, "Error Reply type 0x%08X cmd %s (0x%02X) "
2778 "seq 0x%04X ser 0x%08X\n",
2779 le32_to_cpu(pkt
->u
.err_resp
.error_type
),
2780 get_cmd_string(pkt
->u
.err_resp
.cmd_id
),
2781 pkt
->u
.err_resp
.cmd_id
,
2782 le16_to_cpu(pkt
->u
.err_resp
.bad_cmd_seq_num
),
2783 le32_to_cpu(pkt
->u
.err_resp
.error_info
));
2786 #define TX_STATUS_ENTRY(x) case TX_STATUS_FAIL_ ## x: return #x
2788 static void iwl3945_rx_csa(struct iwl_priv
*priv
, struct iwl_rx_mem_buffer
*rxb
)
2790 struct iwl_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
2791 struct iwl3945_rxon_cmd
*rxon
= (void *)&priv
->active39_rxon
;
2792 struct iwl_csa_notification
*csa
= &(pkt
->u
.csa_notif
);
2793 IWL_DEBUG_11H("CSA notif: channel %d, status %d\n",
2794 le16_to_cpu(csa
->channel
), le32_to_cpu(csa
->status
));
2795 rxon
->channel
= csa
->channel
;
2796 priv
->staging39_rxon
.channel
= csa
->channel
;
2799 static void iwl3945_rx_spectrum_measure_notif(struct iwl_priv
*priv
,
2800 struct iwl_rx_mem_buffer
*rxb
)
2802 #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT
2803 struct iwl_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
2804 struct iwl_spectrum_notification
*report
= &(pkt
->u
.spectrum_notif
);
2806 if (!report
->state
) {
2807 IWL_DEBUG(IWL_DL_11H
| IWL_DL_INFO
,
2808 "Spectrum Measure Notification: Start\n");
2812 memcpy(&priv
->measure_report
, report
, sizeof(*report
));
2813 priv
->measurement_status
|= MEASUREMENT_READY
;
2817 static void iwl3945_rx_pm_sleep_notif(struct iwl_priv
*priv
,
2818 struct iwl_rx_mem_buffer
*rxb
)
2820 #ifdef CONFIG_IWL3945_DEBUG
2821 struct iwl_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
2822 struct iwl_sleep_notification
*sleep
= &(pkt
->u
.sleep_notif
);
2823 IWL_DEBUG_RX("sleep mode: %d, src: %d\n",
2824 sleep
->pm_sleep_mode
, sleep
->pm_wakeup_src
);
2828 static void iwl3945_rx_pm_debug_statistics_notif(struct iwl_priv
*priv
,
2829 struct iwl_rx_mem_buffer
*rxb
)
2831 struct iwl_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
2832 IWL_DEBUG_RADIO("Dumping %d bytes of unhandled "
2833 "notification for %s:\n",
2834 le32_to_cpu(pkt
->len
), get_cmd_string(pkt
->hdr
.cmd
));
2835 iwl_print_hex_dump(priv
, IWL_DL_RADIO
, pkt
->u
.raw
,
2836 le32_to_cpu(pkt
->len
));
2839 static void iwl3945_bg_beacon_update(struct work_struct
*work
)
2841 struct iwl_priv
*priv
=
2842 container_of(work
, struct iwl_priv
, beacon_update
);
2843 struct sk_buff
*beacon
;
2845 /* Pull updated AP beacon from mac80211. will fail if not in AP mode */
2846 beacon
= ieee80211_beacon_get(priv
->hw
, priv
->vif
);
2849 IWL_ERR(priv
, "update beacon failed\n");
2853 mutex_lock(&priv
->mutex
);
2854 /* new beacon skb is allocated every time; dispose previous.*/
2855 if (priv
->ibss_beacon
)
2856 dev_kfree_skb(priv
->ibss_beacon
);
2858 priv
->ibss_beacon
= beacon
;
2859 mutex_unlock(&priv
->mutex
);
2861 iwl3945_send_beacon_cmd(priv
);
2864 static void iwl3945_rx_beacon_notif(struct iwl_priv
*priv
,
2865 struct iwl_rx_mem_buffer
*rxb
)
2867 #ifdef CONFIG_IWL3945_DEBUG
2868 struct iwl_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
2869 struct iwl3945_beacon_notif
*beacon
= &(pkt
->u
.beacon_status
);
2870 u8 rate
= beacon
->beacon_notify_hdr
.rate
;
2872 IWL_DEBUG_RX("beacon status %x retries %d iss %d "
2873 "tsf %d %d rate %d\n",
2874 le32_to_cpu(beacon
->beacon_notify_hdr
.status
) & TX_STATUS_MSK
,
2875 beacon
->beacon_notify_hdr
.failure_frame
,
2876 le32_to_cpu(beacon
->ibss_mgr_status
),
2877 le32_to_cpu(beacon
->high_tsf
),
2878 le32_to_cpu(beacon
->low_tsf
), rate
);
2881 if ((priv
->iw_mode
== NL80211_IFTYPE_AP
) &&
2882 (!test_bit(STATUS_EXIT_PENDING
, &priv
->status
)))
2883 queue_work(priv
->workqueue
, &priv
->beacon_update
);
2886 /* Service response to REPLY_SCAN_CMD (0x80) */
2887 static void iwl3945_rx_reply_scan(struct iwl_priv
*priv
,
2888 struct iwl_rx_mem_buffer
*rxb
)
2890 #ifdef CONFIG_IWL3945_DEBUG
2891 struct iwl_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
2892 struct iwl_scanreq_notification
*notif
=
2893 (struct iwl_scanreq_notification
*)pkt
->u
.raw
;
2895 IWL_DEBUG_RX("Scan request status = 0x%x\n", notif
->status
);
2899 /* Service SCAN_START_NOTIFICATION (0x82) */
2900 static void iwl3945_rx_scan_start_notif(struct iwl_priv
*priv
,
2901 struct iwl_rx_mem_buffer
*rxb
)
2903 struct iwl_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
2904 struct iwl_scanstart_notification
*notif
=
2905 (struct iwl_scanstart_notification
*)pkt
->u
.raw
;
2906 priv
->scan_start_tsf
= le32_to_cpu(notif
->tsf_low
);
2907 IWL_DEBUG_SCAN("Scan start: "
2909 "(TSF: 0x%08X:%08X) - %d (beacon timer %u)\n",
2911 notif
->band
? "bg" : "a",
2913 notif
->tsf_low
, notif
->status
, notif
->beacon_timer
);
2916 /* Service SCAN_RESULTS_NOTIFICATION (0x83) */
2917 static void iwl3945_rx_scan_results_notif(struct iwl_priv
*priv
,
2918 struct iwl_rx_mem_buffer
*rxb
)
2920 struct iwl_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
2921 struct iwl_scanresults_notification
*notif
=
2922 (struct iwl_scanresults_notification
*)pkt
->u
.raw
;
2924 IWL_DEBUG_SCAN("Scan ch.res: "
2926 "(TSF: 0x%08X:%08X) - %d "
2927 "elapsed=%lu usec (%dms since last)\n",
2929 notif
->band
? "bg" : "a",
2930 le32_to_cpu(notif
->tsf_high
),
2931 le32_to_cpu(notif
->tsf_low
),
2932 le32_to_cpu(notif
->statistics
[0]),
2933 le32_to_cpu(notif
->tsf_low
) - priv
->scan_start_tsf
,
2934 jiffies_to_msecs(elapsed_jiffies
2935 (priv
->last_scan_jiffies
, jiffies
)));
2937 priv
->last_scan_jiffies
= jiffies
;
2938 priv
->next_scan_jiffies
= 0;
2941 /* Service SCAN_COMPLETE_NOTIFICATION (0x84) */
2942 static void iwl3945_rx_scan_complete_notif(struct iwl_priv
*priv
,
2943 struct iwl_rx_mem_buffer
*rxb
)
2945 struct iwl_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
2946 struct iwl_scancomplete_notification
*scan_notif
= (void *)pkt
->u
.raw
;
2948 IWL_DEBUG_SCAN("Scan complete: %d channels (TSF 0x%08X:%08X) - %d\n",
2949 scan_notif
->scanned_channels
,
2950 scan_notif
->tsf_low
,
2951 scan_notif
->tsf_high
, scan_notif
->status
);
2953 /* The HW is no longer scanning */
2954 clear_bit(STATUS_SCAN_HW
, &priv
->status
);
2956 /* The scan completion notification came in, so kill that timer... */
2957 cancel_delayed_work(&priv
->scan_check
);
2959 IWL_DEBUG_INFO("Scan pass on %sGHz took %dms\n",
2960 (priv
->scan_bands
& BIT(IEEE80211_BAND_2GHZ
)) ?
2962 jiffies_to_msecs(elapsed_jiffies
2963 (priv
->scan_pass_start
, jiffies
)));
2965 /* Remove this scanned band from the list of pending
2966 * bands to scan, band G precedes A in order of scanning
2967 * as seen in iwl3945_bg_request_scan */
2968 if (priv
->scan_bands
& BIT(IEEE80211_BAND_2GHZ
))
2969 priv
->scan_bands
&= ~BIT(IEEE80211_BAND_2GHZ
);
2970 else if (priv
->scan_bands
& BIT(IEEE80211_BAND_5GHZ
))
2971 priv
->scan_bands
&= ~BIT(IEEE80211_BAND_5GHZ
);
2973 /* If a request to abort was given, or the scan did not succeed
2974 * then we reset the scan state machine and terminate,
2975 * re-queuing another scan if one has been requested */
2976 if (test_bit(STATUS_SCAN_ABORTING
, &priv
->status
)) {
2977 IWL_DEBUG_INFO("Aborted scan completed.\n");
2978 clear_bit(STATUS_SCAN_ABORTING
, &priv
->status
);
2980 /* If there are more bands on this scan pass reschedule */
2981 if (priv
->scan_bands
> 0)
2985 priv
->last_scan_jiffies
= jiffies
;
2986 priv
->next_scan_jiffies
= 0;
2987 IWL_DEBUG_INFO("Setting scan to off\n");
2989 clear_bit(STATUS_SCANNING
, &priv
->status
);
2991 IWL_DEBUG_INFO("Scan took %dms\n",
2992 jiffies_to_msecs(elapsed_jiffies(priv
->scan_start
, jiffies
)));
2994 queue_work(priv
->workqueue
, &priv
->scan_completed
);
2999 priv
->scan_pass_start
= jiffies
;
3000 queue_work(priv
->workqueue
, &priv
->request_scan
);
3003 /* Handle notification from uCode that card's power state is changing
3004 * due to software, hardware, or critical temperature RFKILL */
3005 static void iwl3945_rx_card_state_notif(struct iwl_priv
*priv
,
3006 struct iwl_rx_mem_buffer
*rxb
)
3008 struct iwl_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3009 u32 flags
= le32_to_cpu(pkt
->u
.card_state_notif
.flags
);
3010 unsigned long status
= priv
->status
;
3012 IWL_DEBUG_RF_KILL("Card state received: HW:%s SW:%s\n",
3013 (flags
& HW_CARD_DISABLED
) ? "Kill" : "On",
3014 (flags
& SW_CARD_DISABLED
) ? "Kill" : "On");
3016 iwl_write32(priv
, CSR_UCODE_DRV_GP1_SET
,
3017 CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED
);
3019 if (flags
& HW_CARD_DISABLED
)
3020 set_bit(STATUS_RF_KILL_HW
, &priv
->status
);
3022 clear_bit(STATUS_RF_KILL_HW
, &priv
->status
);
3025 if (flags
& SW_CARD_DISABLED
)
3026 set_bit(STATUS_RF_KILL_SW
, &priv
->status
);
3028 clear_bit(STATUS_RF_KILL_SW
, &priv
->status
);
3030 iwl3945_scan_cancel(priv
);
3032 if ((test_bit(STATUS_RF_KILL_HW
, &status
) !=
3033 test_bit(STATUS_RF_KILL_HW
, &priv
->status
)) ||
3034 (test_bit(STATUS_RF_KILL_SW
, &status
) !=
3035 test_bit(STATUS_RF_KILL_SW
, &priv
->status
)))
3036 queue_work(priv
->workqueue
, &priv
->rf_kill
);
3038 wake_up_interruptible(&priv
->wait_command_queue
);
3042 * iwl3945_setup_rx_handlers - Initialize Rx handler callbacks
3044 * Setup the RX handlers for each of the reply types sent from the uCode
3047 * This function chains into the hardware specific files for them to setup
3048 * any hardware specific handlers as well.
3050 static void iwl3945_setup_rx_handlers(struct iwl_priv
*priv
)
3052 priv
->rx_handlers
[REPLY_ALIVE
] = iwl3945_rx_reply_alive
;
3053 priv
->rx_handlers
[REPLY_ADD_STA
] = iwl3945_rx_reply_add_sta
;
3054 priv
->rx_handlers
[REPLY_ERROR
] = iwl3945_rx_reply_error
;
3055 priv
->rx_handlers
[CHANNEL_SWITCH_NOTIFICATION
] = iwl3945_rx_csa
;
3056 priv
->rx_handlers
[SPECTRUM_MEASURE_NOTIFICATION
] =
3057 iwl3945_rx_spectrum_measure_notif
;
3058 priv
->rx_handlers
[PM_SLEEP_NOTIFICATION
] = iwl3945_rx_pm_sleep_notif
;
3059 priv
->rx_handlers
[PM_DEBUG_STATISTIC_NOTIFIC
] =
3060 iwl3945_rx_pm_debug_statistics_notif
;
3061 priv
->rx_handlers
[BEACON_NOTIFICATION
] = iwl3945_rx_beacon_notif
;
3064 * The same handler is used for both the REPLY to a discrete
3065 * statistics request from the host as well as for the periodic
3066 * statistics notifications (after received beacons) from the uCode.
3068 priv
->rx_handlers
[REPLY_STATISTICS_CMD
] = iwl3945_hw_rx_statistics
;
3069 priv
->rx_handlers
[STATISTICS_NOTIFICATION
] = iwl3945_hw_rx_statistics
;
3071 priv
->rx_handlers
[REPLY_SCAN_CMD
] = iwl3945_rx_reply_scan
;
3072 priv
->rx_handlers
[SCAN_START_NOTIFICATION
] = iwl3945_rx_scan_start_notif
;
3073 priv
->rx_handlers
[SCAN_RESULTS_NOTIFICATION
] =
3074 iwl3945_rx_scan_results_notif
;
3075 priv
->rx_handlers
[SCAN_COMPLETE_NOTIFICATION
] =
3076 iwl3945_rx_scan_complete_notif
;
3077 priv
->rx_handlers
[CARD_STATE_NOTIFICATION
] = iwl3945_rx_card_state_notif
;
3079 /* Set up hardware specific Rx handlers */
3080 iwl3945_hw_rx_handler_setup(priv
);
3084 * iwl3945_cmd_queue_reclaim - Reclaim CMD queue entries
3085 * When FW advances 'R' index, all entries between old and new 'R' index
3086 * need to be reclaimed.
3088 static void iwl3945_cmd_queue_reclaim(struct iwl_priv
*priv
,
3089 int txq_id
, int index
)
3091 struct iwl3945_tx_queue
*txq
= &priv
->txq39
[txq_id
];
3092 struct iwl_queue
*q
= &txq
->q
;
3095 if ((index
>= q
->n_bd
) || (iwl3945_x2_queue_used(q
, index
) == 0)) {
3096 IWL_ERR(priv
, "Read index for DMA queue txq id (%d), index %d, "
3097 "is out of range [0-%d] %d %d.\n", txq_id
,
3098 index
, q
->n_bd
, q
->write_ptr
, q
->read_ptr
);
3102 for (index
= iwl_queue_inc_wrap(index
, q
->n_bd
); q
->read_ptr
!= index
;
3103 q
->read_ptr
= iwl_queue_inc_wrap(q
->read_ptr
, q
->n_bd
)) {
3105 IWL_ERR(priv
, "HCMD skipped: index (%d) %d %d\n", index
,
3106 q
->write_ptr
, q
->read_ptr
);
3107 queue_work(priv
->workqueue
, &priv
->restart
);
3116 * iwl3945_tx_cmd_complete - Pull unused buffers off the queue and reclaim them
3117 * @rxb: Rx buffer to reclaim
3119 * If an Rx buffer has an async callback associated with it the callback
3120 * will be executed. The attached skb (if present) will only be freed
3121 * if the callback returns 1
3123 static void iwl3945_tx_cmd_complete(struct iwl_priv
*priv
,
3124 struct iwl_rx_mem_buffer
*rxb
)
3126 struct iwl_rx_packet
*pkt
= (struct iwl_rx_packet
*)rxb
->skb
->data
;
3127 u16 sequence
= le16_to_cpu(pkt
->hdr
.sequence
);
3128 int txq_id
= SEQ_TO_QUEUE(sequence
);
3129 int index
= SEQ_TO_INDEX(sequence
);
3130 int huge
= !!(pkt
->hdr
.sequence
& SEQ_HUGE_FRAME
);
3132 struct iwl_cmd
*cmd
;
3134 BUG_ON(txq_id
!= IWL_CMD_QUEUE_NUM
);
3136 cmd_index
= get_cmd_index(&priv
->txq39
[IWL_CMD_QUEUE_NUM
].q
, index
, huge
);
3137 cmd
= &priv
->txq39
[IWL_CMD_QUEUE_NUM
].cmd
[cmd_index
];
3139 /* Input error checking is done when commands are added to queue. */
3140 if (cmd
->meta
.flags
& CMD_WANT_SKB
) {
3141 cmd
->meta
.source
->u
.skb
= rxb
->skb
;
3143 } else if (cmd
->meta
.u
.callback
&&
3144 !cmd
->meta
.u
.callback(priv
, cmd
, rxb
->skb
))
3147 iwl3945_cmd_queue_reclaim(priv
, txq_id
, index
);
3149 if (!(cmd
->meta
.flags
& CMD_ASYNC
)) {
3150 clear_bit(STATUS_HCMD_ACTIVE
, &priv
->status
);
3151 wake_up_interruptible(&priv
->wait_command_queue
);
3155 /************************** RX-FUNCTIONS ****************************/
3157 * Rx theory of operation
3159 * The host allocates 32 DMA target addresses and passes the host address
3160 * to the firmware at register IWL_RFDS_TABLE_LOWER + N * RFD_SIZE where N is
3164 * The host/firmware share two index registers for managing the Rx buffers.
3166 * The READ index maps to the first position that the firmware may be writing
3167 * to -- the driver can read up to (but not including) this position and get
3169 * The READ index is managed by the firmware once the card is enabled.
3171 * The WRITE index maps to the last position the driver has read from -- the
3172 * position preceding WRITE is the last slot the firmware can place a packet.
3174 * The queue is empty (no good data) if WRITE = READ - 1, and is full if
3177 * During initialization, the host sets up the READ queue position to the first
3178 * INDEX position, and WRITE to the last (READ - 1 wrapped)
3180 * When the firmware places a packet in a buffer, it will advance the READ index
3181 * and fire the RX interrupt. The driver can then query the READ index and
3182 * process as many packets as possible, moving the WRITE index forward as it
3183 * resets the Rx queue buffers with new memory.
3185 * The management in the driver is as follows:
3186 * + A list of pre-allocated SKBs is stored in iwl->rxq->rx_free. When
3187 * iwl->rxq->free_count drops to or below RX_LOW_WATERMARK, work is scheduled
3188 * to replenish the iwl->rxq->rx_free.
3189 * + In iwl3945_rx_replenish (scheduled) if 'processed' != 'read' then the
3190 * iwl->rxq is replenished and the READ INDEX is updated (updating the
3191 * 'processed' and 'read' driver indexes as well)
3192 * + A received packet is processed and handed to the kernel network stack,
3193 * detached from the iwl->rxq. The driver 'processed' index is updated.
3194 * + The Host/Firmware iwl->rxq is replenished at tasklet time from the rx_free
3195 * list. If there are no allocated buffers in iwl->rxq->rx_free, the READ
3196 * INDEX is not incremented and iwl->status(RX_STALLED) is set. If there
3197 * were enough free buffers and RX_STALLED is set it is cleared.
3202 * iwl3945_rx_queue_alloc() Allocates rx_free
3203 * iwl3945_rx_replenish() Replenishes rx_free list from rx_used, and calls
3204 * iwl3945_rx_queue_restock
3205 * iwl3945_rx_queue_restock() Moves available buffers from rx_free into Rx
3206 * queue, updates firmware pointers, and updates
3207 * the WRITE index. If insufficient rx_free buffers
3208 * are available, schedules iwl3945_rx_replenish
3210 * -- enable interrupts --
3211 * ISR - iwl3945_rx() Detach iwl_rx_mem_buffers from pool up to the
3212 * READ INDEX, detaching the SKB from the pool.
3213 * Moves the packet buffer from queue to rx_used.
3214 * Calls iwl3945_rx_queue_restock to refill any empty
3221 * iwl3945_rx_queue_space - Return number of free slots available in queue.
3223 static int iwl3945_rx_queue_space(const struct iwl_rx_queue
*q
)
3225 int s
= q
->read
- q
->write
;
3228 /* keep some buffer to not confuse full and empty queue */
3236 * iwl3945_rx_queue_update_write_ptr - Update the write pointer for the RX queue
3238 int iwl3945_rx_queue_update_write_ptr(struct iwl_priv
*priv
, struct iwl_rx_queue
*q
)
3242 unsigned long flags
;
3244 spin_lock_irqsave(&q
->lock
, flags
);
3246 if (q
->need_update
== 0)
3249 /* If power-saving is in use, make sure device is awake */
3250 if (test_bit(STATUS_POWER_PMI
, &priv
->status
)) {
3251 reg
= iwl_read32(priv
, CSR_UCODE_DRV_GP1
);
3253 if (reg
& CSR_UCODE_DRV_GP1_BIT_MAC_SLEEP
) {
3254 iwl_set_bit(priv
, CSR_GP_CNTRL
,
3255 CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ
);
3259 rc
= iwl_grab_nic_access(priv
);
3263 /* Device expects a multiple of 8 */
3264 iwl_write_direct32(priv
, FH39_RSCSR_CHNL0_WPTR
,
3266 iwl_release_nic_access(priv
);
3268 /* Else device is assumed to be awake */
3270 /* Device expects a multiple of 8 */
3271 iwl_write32(priv
, FH39_RSCSR_CHNL0_WPTR
, q
->write
& ~0x7);
3277 spin_unlock_irqrestore(&q
->lock
, flags
);
3282 * iwl3945_dma_addr2rbd_ptr - convert a DMA address to a uCode read buffer ptr
3284 static inline __le32
iwl3945_dma_addr2rbd_ptr(struct iwl_priv
*priv
,
3285 dma_addr_t dma_addr
)
3287 return cpu_to_le32((u32
)dma_addr
);
3291 * iwl3945_rx_queue_restock - refill RX queue from pre-allocated pool
3293 * If there are slots in the RX queue that need to be restocked,
3294 * and we have free pre-allocated buffers, fill the ranks as much
3295 * as we can, pulling from rx_free.
3297 * This moves the 'write' index forward to catch up with 'processed', and
3298 * also updates the memory address in the firmware to reference the new
3301 static int iwl3945_rx_queue_restock(struct iwl_priv
*priv
)
3303 struct iwl_rx_queue
*rxq
= &priv
->rxq
;
3304 struct list_head
*element
;
3305 struct iwl_rx_mem_buffer
*rxb
;
3306 unsigned long flags
;
3309 spin_lock_irqsave(&rxq
->lock
, flags
);
3310 write
= rxq
->write
& ~0x7;
3311 while ((iwl3945_rx_queue_space(rxq
) > 0) && (rxq
->free_count
)) {
3312 /* Get next free Rx buffer, remove from free list */
3313 element
= rxq
->rx_free
.next
;
3314 rxb
= list_entry(element
, struct iwl_rx_mem_buffer
, list
);
3317 /* Point to Rx buffer via next RBD in circular buffer */
3318 rxq
->bd
[rxq
->write
] = iwl3945_dma_addr2rbd_ptr(priv
, rxb
->real_dma_addr
);
3319 rxq
->queue
[rxq
->write
] = rxb
;
3320 rxq
->write
= (rxq
->write
+ 1) & RX_QUEUE_MASK
;
3323 spin_unlock_irqrestore(&rxq
->lock
, flags
);
3324 /* If the pre-allocated buffer pool is dropping low, schedule to
3326 if (rxq
->free_count
<= RX_LOW_WATERMARK
)
3327 queue_work(priv
->workqueue
, &priv
->rx_replenish
);
3330 /* If we've added more space for the firmware to place data, tell it.
3331 * Increment device's write pointer in multiples of 8. */
3332 if ((write
!= (rxq
->write
& ~0x7))
3333 || (abs(rxq
->write
- rxq
->read
) > 7)) {
3334 spin_lock_irqsave(&rxq
->lock
, flags
);
3335 rxq
->need_update
= 1;
3336 spin_unlock_irqrestore(&rxq
->lock
, flags
);
3337 rc
= iwl3945_rx_queue_update_write_ptr(priv
, rxq
);
3346 * iwl3945_rx_replenish - Move all used packet from rx_used to rx_free
3348 * When moving to rx_free an SKB is allocated for the slot.
3350 * Also restock the Rx queue via iwl3945_rx_queue_restock.
3351 * This is called as a scheduled work item (except for during initialization)
3353 static void iwl3945_rx_allocate(struct iwl_priv
*priv
)
3355 struct iwl_rx_queue
*rxq
= &priv
->rxq
;
3356 struct list_head
*element
;
3357 struct iwl_rx_mem_buffer
*rxb
;
3358 unsigned long flags
;
3359 spin_lock_irqsave(&rxq
->lock
, flags
);
3360 while (!list_empty(&rxq
->rx_used
)) {
3361 element
= rxq
->rx_used
.next
;
3362 rxb
= list_entry(element
, struct iwl_rx_mem_buffer
, list
);
3364 /* Alloc a new receive buffer */
3366 alloc_skb(IWL_RX_BUF_SIZE
, __GFP_NOWARN
| GFP_ATOMIC
);
3368 if (net_ratelimit())
3369 IWL_CRIT(priv
, ": Can not allocate SKB buffers\n");
3370 /* We don't reschedule replenish work here -- we will
3371 * call the restock method and if it still needs
3372 * more buffers it will schedule replenish */
3376 /* If radiotap head is required, reserve some headroom here.
3377 * The physical head count is a variable rx_stats->phy_count.
3378 * We reserve 4 bytes here. Plus these extra bytes, the
3379 * headroom of the physical head should be enough for the
3380 * radiotap head that iwl3945 supported. See iwl3945_rt.
3382 skb_reserve(rxb
->skb
, 4);
3384 priv
->alloc_rxb_skb
++;
3387 /* Get physical address of RB/SKB */
3388 rxb
->real_dma_addr
=
3389 pci_map_single(priv
->pci_dev
, rxb
->skb
->data
,
3390 IWL_RX_BUF_SIZE
, PCI_DMA_FROMDEVICE
);
3391 list_add_tail(&rxb
->list
, &rxq
->rx_free
);
3394 spin_unlock_irqrestore(&rxq
->lock
, flags
);
3398 * this should be called while priv->lock is locked
3400 static void __iwl3945_rx_replenish(void *data
)
3402 struct iwl_priv
*priv
= data
;
3404 iwl3945_rx_allocate(priv
);
3405 iwl3945_rx_queue_restock(priv
);
3409 void iwl3945_rx_replenish(void *data
)
3411 struct iwl_priv
*priv
= data
;
3412 unsigned long flags
;
3414 iwl3945_rx_allocate(priv
);
3416 spin_lock_irqsave(&priv
->lock
, flags
);
3417 iwl3945_rx_queue_restock(priv
);
3418 spin_unlock_irqrestore(&priv
->lock
, flags
);
3421 /* Assumes that the skb field of the buffers in 'pool' is kept accurate.
3422 * If an SKB has been detached, the POOL needs to have its SKB set to NULL
3423 * This free routine walks the list of POOL entries and if SKB is set to
3424 * non NULL it is unmapped and freed
3426 static void iwl3945_rx_queue_free(struct iwl_priv
*priv
, struct iwl_rx_queue
*rxq
)
3429 for (i
= 0; i
< RX_QUEUE_SIZE
+ RX_FREE_BUFFERS
; i
++) {
3430 if (rxq
->pool
[i
].skb
!= NULL
) {
3431 pci_unmap_single(priv
->pci_dev
,
3432 rxq
->pool
[i
].real_dma_addr
,
3433 IWL_RX_BUF_SIZE
, PCI_DMA_FROMDEVICE
);
3434 dev_kfree_skb(rxq
->pool
[i
].skb
);
3438 pci_free_consistent(priv
->pci_dev
, 4 * RX_QUEUE_SIZE
, rxq
->bd
,
3443 int iwl3945_rx_queue_alloc(struct iwl_priv
*priv
)
3445 struct iwl_rx_queue
*rxq
= &priv
->rxq
;
3446 struct pci_dev
*dev
= priv
->pci_dev
;
3449 spin_lock_init(&rxq
->lock
);
3450 INIT_LIST_HEAD(&rxq
->rx_free
);
3451 INIT_LIST_HEAD(&rxq
->rx_used
);
3453 /* Alloc the circular buffer of Read Buffer Descriptors (RBDs) */
3454 rxq
->bd
= pci_alloc_consistent(dev
, 4 * RX_QUEUE_SIZE
, &rxq
->dma_addr
);
3458 /* Fill the rx_used queue with _all_ of the Rx buffers */
3459 for (i
= 0; i
< RX_FREE_BUFFERS
+ RX_QUEUE_SIZE
; i
++)
3460 list_add_tail(&rxq
->pool
[i
].list
, &rxq
->rx_used
);
3462 /* Set us so that we have processed and used all buffers, but have
3463 * not restocked the Rx queue with fresh buffers */
3464 rxq
->read
= rxq
->write
= 0;
3465 rxq
->free_count
= 0;
3466 rxq
->need_update
= 0;
3470 void iwl3945_rx_queue_reset(struct iwl_priv
*priv
, struct iwl_rx_queue
*rxq
)
3472 unsigned long flags
;
3474 spin_lock_irqsave(&rxq
->lock
, flags
);
3475 INIT_LIST_HEAD(&rxq
->rx_free
);
3476 INIT_LIST_HEAD(&rxq
->rx_used
);
3477 /* Fill the rx_used queue with _all_ of the Rx buffers */
3478 for (i
= 0; i
< RX_FREE_BUFFERS
+ RX_QUEUE_SIZE
; i
++) {
3479 /* In the reset function, these buffers may have been allocated
3480 * to an SKB, so we need to unmap and free potential storage */
3481 if (rxq
->pool
[i
].skb
!= NULL
) {
3482 pci_unmap_single(priv
->pci_dev
,
3483 rxq
->pool
[i
].real_dma_addr
,
3484 IWL_RX_BUF_SIZE
, PCI_DMA_FROMDEVICE
);
3485 priv
->alloc_rxb_skb
--;
3486 dev_kfree_skb(rxq
->pool
[i
].skb
);
3487 rxq
->pool
[i
].skb
= NULL
;
3489 list_add_tail(&rxq
->pool
[i
].list
, &rxq
->rx_used
);
3492 /* Set us so that we have processed and used all buffers, but have
3493 * not restocked the Rx queue with fresh buffers */
3494 rxq
->read
= rxq
->write
= 0;
3495 rxq
->free_count
= 0;
3496 spin_unlock_irqrestore(&rxq
->lock
, flags
);
3499 /* Convert linear signal-to-noise ratio into dB */
3500 static u8 ratio2dB
[100] = {
3501 /* 0 1 2 3 4 5 6 7 8 9 */
3502 0, 0, 6, 10, 12, 14, 16, 17, 18, 19, /* 00 - 09 */
3503 20, 21, 22, 22, 23, 23, 24, 25, 26, 26, /* 10 - 19 */
3504 26, 26, 26, 27, 27, 28, 28, 28, 29, 29, /* 20 - 29 */
3505 29, 30, 30, 30, 31, 31, 31, 31, 32, 32, /* 30 - 39 */
3506 32, 32, 32, 33, 33, 33, 33, 33, 34, 34, /* 40 - 49 */
3507 34, 34, 34, 34, 35, 35, 35, 35, 35, 35, /* 50 - 59 */
3508 36, 36, 36, 36, 36, 36, 36, 37, 37, 37, /* 60 - 69 */
3509 37, 37, 37, 37, 37, 38, 38, 38, 38, 38, /* 70 - 79 */
3510 38, 38, 38, 38, 38, 39, 39, 39, 39, 39, /* 80 - 89 */
3511 39, 39, 39, 39, 39, 40, 40, 40, 40, 40 /* 90 - 99 */
3514 /* Calculates a relative dB value from a ratio of linear
3515 * (i.e. not dB) signal levels.
3516 * Conversion assumes that levels are voltages (20*log), not powers (10*log). */
3517 int iwl3945_calc_db_from_ratio(int sig_ratio
)
3519 /* 1000:1 or higher just report as 60 dB */
3520 if (sig_ratio
>= 1000)
3523 /* 100:1 or higher, divide by 10 and use table,
3524 * add 20 dB to make up for divide by 10 */
3525 if (sig_ratio
>= 100)
3526 return 20 + (int)ratio2dB
[sig_ratio
/10];
3528 /* We shouldn't see this */
3532 /* Use table for ratios 1:1 - 99:1 */
3533 return (int)ratio2dB
[sig_ratio
];
3536 #define PERFECT_RSSI (-20) /* dBm */
3537 #define WORST_RSSI (-95) /* dBm */
3538 #define RSSI_RANGE (PERFECT_RSSI - WORST_RSSI)
3540 /* Calculate an indication of rx signal quality (a percentage, not dBm!).
3541 * See http://www.ces.clemson.edu/linux/signal_quality.shtml for info
3542 * about formulas used below. */
3543 int iwl3945_calc_sig_qual(int rssi_dbm
, int noise_dbm
)
3546 int degradation
= PERFECT_RSSI
- rssi_dbm
;
3548 /* If we get a noise measurement, use signal-to-noise ratio (SNR)
3549 * as indicator; formula is (signal dbm - noise dbm).
3550 * SNR at or above 40 is a great signal (100%).
3551 * Below that, scale to fit SNR of 0 - 40 dB within 0 - 100% indicator.
3552 * Weakest usable signal is usually 10 - 15 dB SNR. */
3554 if (rssi_dbm
- noise_dbm
>= 40)
3556 else if (rssi_dbm
< noise_dbm
)
3558 sig_qual
= ((rssi_dbm
- noise_dbm
) * 5) / 2;
3560 /* Else use just the signal level.
3561 * This formula is a least squares fit of data points collected and
3562 * compared with a reference system that had a percentage (%) display
3563 * for signal quality. */
3565 sig_qual
= (100 * (RSSI_RANGE
* RSSI_RANGE
) - degradation
*
3566 (15 * RSSI_RANGE
+ 62 * degradation
)) /
3567 (RSSI_RANGE
* RSSI_RANGE
);
3571 else if (sig_qual
< 1)
3578 * iwl3945_rx_handle - Main entry function for receiving responses from uCode
3580 * Uses the priv->rx_handlers callback function array to invoke
3581 * the appropriate handlers, including command responses,
3582 * frame-received notifications, and other notifications.
3584 static void iwl3945_rx_handle(struct iwl_priv
*priv
)
3586 struct iwl_rx_mem_buffer
*rxb
;
3587 struct iwl_rx_packet
*pkt
;
3588 struct iwl_rx_queue
*rxq
= &priv
->rxq
;
3591 unsigned long flags
;
3595 /* uCode's read index (stored in shared DRAM) indicates the last Rx
3596 * buffer that the driver may process (last buffer filled by ucode). */
3597 r
= iwl3945_hw_get_rx_read(priv
);
3600 if (iwl3945_rx_queue_space(rxq
) > (RX_QUEUE_SIZE
/ 2))
3602 /* Rx interrupt, but nothing sent from uCode */
3604 IWL_DEBUG(IWL_DL_RX
| IWL_DL_ISR
, "r = %d, i = %d\n", r
, i
);
3607 rxb
= rxq
->queue
[i
];
3609 /* If an RXB doesn't have a Rx queue slot associated with it,
3610 * then a bug has been introduced in the queue refilling
3611 * routines -- catch it here */
3612 BUG_ON(rxb
== NULL
);
3614 rxq
->queue
[i
] = NULL
;
3616 pci_dma_sync_single_for_cpu(priv
->pci_dev
, rxb
->real_dma_addr
,
3618 PCI_DMA_FROMDEVICE
);
3619 pkt
= (struct iwl_rx_packet
*)rxb
->skb
->data
;
3621 /* Reclaim a command buffer only if this packet is a response
3622 * to a (driver-originated) command.
3623 * If the packet (e.g. Rx frame) originated from uCode,
3624 * there is no command buffer to reclaim.
3625 * Ucode should set SEQ_RX_FRAME bit if ucode-originated,
3626 * but apparently a few don't get set; catch them here. */
3627 reclaim
= !(pkt
->hdr
.sequence
& SEQ_RX_FRAME
) &&
3628 (pkt
->hdr
.cmd
!= STATISTICS_NOTIFICATION
) &&
3629 (pkt
->hdr
.cmd
!= REPLY_TX
);
3631 /* Based on type of command response or notification,
3632 * handle those that need handling via function in
3633 * rx_handlers table. See iwl3945_setup_rx_handlers() */
3634 if (priv
->rx_handlers
[pkt
->hdr
.cmd
]) {
3635 IWL_DEBUG(IWL_DL_HCMD
| IWL_DL_RX
| IWL_DL_ISR
,
3636 "r = %d, i = %d, %s, 0x%02x\n", r
, i
,
3637 get_cmd_string(pkt
->hdr
.cmd
), pkt
->hdr
.cmd
);
3638 priv
->rx_handlers
[pkt
->hdr
.cmd
] (priv
, rxb
);
3640 /* No handling needed */
3641 IWL_DEBUG(IWL_DL_HCMD
| IWL_DL_RX
| IWL_DL_ISR
,
3642 "r %d i %d No handler needed for %s, 0x%02x\n",
3643 r
, i
, get_cmd_string(pkt
->hdr
.cmd
),
3648 /* Invoke any callbacks, transfer the skb to caller, and
3649 * fire off the (possibly) blocking iwl3945_send_cmd()
3650 * as we reclaim the driver command queue */
3651 if (rxb
&& rxb
->skb
)
3652 iwl3945_tx_cmd_complete(priv
, rxb
);
3654 IWL_WARN(priv
, "Claim null rxb?\n");
3657 /* For now we just don't re-use anything. We can tweak this
3658 * later to try and re-use notification packets and SKBs that
3659 * fail to Rx correctly */
3660 if (rxb
->skb
!= NULL
) {
3661 priv
->alloc_rxb_skb
--;
3662 dev_kfree_skb_any(rxb
->skb
);
3666 pci_unmap_single(priv
->pci_dev
, rxb
->real_dma_addr
,
3667 IWL_RX_BUF_SIZE
, PCI_DMA_FROMDEVICE
);
3668 spin_lock_irqsave(&rxq
->lock
, flags
);
3669 list_add_tail(&rxb
->list
, &priv
->rxq
.rx_used
);
3670 spin_unlock_irqrestore(&rxq
->lock
, flags
);
3671 i
= (i
+ 1) & RX_QUEUE_MASK
;
3672 /* If there are a lot of unused frames,
3673 * restock the Rx queue so ucode won't assert. */
3678 __iwl3945_rx_replenish(priv
);
3684 /* Backtrack one entry */
3686 iwl3945_rx_queue_restock(priv
);
3690 * iwl3945_tx_queue_update_write_ptr - Send new write index to hardware
3692 static int iwl3945_tx_queue_update_write_ptr(struct iwl_priv
*priv
,
3693 struct iwl3945_tx_queue
*txq
)
3697 int txq_id
= txq
->q
.id
;
3699 if (txq
->need_update
== 0)
3702 /* if we're trying to save power */
3703 if (test_bit(STATUS_POWER_PMI
, &priv
->status
)) {
3704 /* wake up nic if it's powered down ...
3705 * uCode will wake up, and interrupt us again, so next
3706 * time we'll skip this part. */
3707 reg
= iwl_read32(priv
, CSR_UCODE_DRV_GP1
);
3709 if (reg
& CSR_UCODE_DRV_GP1_BIT_MAC_SLEEP
) {
3710 IWL_DEBUG_INFO("Requesting wakeup, GP1 = 0x%x\n", reg
);
3711 iwl_set_bit(priv
, CSR_GP_CNTRL
,
3712 CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ
);
3716 /* restore this queue's parameters in nic hardware. */
3717 rc
= iwl_grab_nic_access(priv
);
3720 iwl_write_direct32(priv
, HBUS_TARG_WRPTR
,
3721 txq
->q
.write_ptr
| (txq_id
<< 8));
3722 iwl_release_nic_access(priv
);
3724 /* else not in power-save mode, uCode will never sleep when we're
3725 * trying to tx (during RFKILL, we're not trying to tx). */
3727 iwl_write32(priv
, HBUS_TARG_WRPTR
,
3728 txq
->q
.write_ptr
| (txq_id
<< 8));
3730 txq
->need_update
= 0;
3735 #ifdef CONFIG_IWL3945_DEBUG
3736 static void iwl3945_print_rx_config_cmd(struct iwl_priv
*priv
,
3737 struct iwl3945_rxon_cmd
*rxon
)
3739 IWL_DEBUG_RADIO("RX CONFIG:\n");
3740 iwl_print_hex_dump(priv
, IWL_DL_RADIO
, (u8
*) rxon
, sizeof(*rxon
));
3741 IWL_DEBUG_RADIO("u16 channel: 0x%x\n", le16_to_cpu(rxon
->channel
));
3742 IWL_DEBUG_RADIO("u32 flags: 0x%08X\n", le32_to_cpu(rxon
->flags
));
3743 IWL_DEBUG_RADIO("u32 filter_flags: 0x%08x\n",
3744 le32_to_cpu(rxon
->filter_flags
));
3745 IWL_DEBUG_RADIO("u8 dev_type: 0x%x\n", rxon
->dev_type
);
3746 IWL_DEBUG_RADIO("u8 ofdm_basic_rates: 0x%02x\n",
3747 rxon
->ofdm_basic_rates
);
3748 IWL_DEBUG_RADIO("u8 cck_basic_rates: 0x%02x\n", rxon
->cck_basic_rates
);
3749 IWL_DEBUG_RADIO("u8[6] node_addr: %pM\n", rxon
->node_addr
);
3750 IWL_DEBUG_RADIO("u8[6] bssid_addr: %pM\n", rxon
->bssid_addr
);
3751 IWL_DEBUG_RADIO("u16 assoc_id: 0x%x\n", le16_to_cpu(rxon
->assoc_id
));
3755 static void iwl3945_enable_interrupts(struct iwl_priv
*priv
)
3757 IWL_DEBUG_ISR("Enabling interrupts\n");
3758 set_bit(STATUS_INT_ENABLED
, &priv
->status
);
3759 iwl_write32(priv
, CSR_INT_MASK
, CSR_INI_SET_MASK
);
3763 /* call this function to flush any scheduled tasklet */
3764 static inline void iwl_synchronize_irq(struct iwl_priv
*priv
)
3766 /* wait to make sure we flush pending tasklet*/
3767 synchronize_irq(priv
->pci_dev
->irq
);
3768 tasklet_kill(&priv
->irq_tasklet
);
3772 static inline void iwl3945_disable_interrupts(struct iwl_priv
*priv
)
3774 clear_bit(STATUS_INT_ENABLED
, &priv
->status
);
3776 /* disable interrupts from uCode/NIC to host */
3777 iwl_write32(priv
, CSR_INT_MASK
, 0x00000000);
3779 /* acknowledge/clear/reset any interrupts still pending
3780 * from uCode or flow handler (Rx/Tx DMA) */
3781 iwl_write32(priv
, CSR_INT
, 0xffffffff);
3782 iwl_write32(priv
, CSR_FH_INT_STATUS
, 0xffffffff);
3783 IWL_DEBUG_ISR("Disabled interrupts\n");
3786 static const char *desc_lookup(int i
)
3794 return "BAD_CHECKSUM";
3796 return "NMI_INTERRUPT";
3800 return "FATAL_ERROR";
3806 #define ERROR_START_OFFSET (1 * sizeof(u32))
3807 #define ERROR_ELEM_SIZE (7 * sizeof(u32))
3809 static void iwl3945_dump_nic_error_log(struct iwl_priv
*priv
)
3812 u32 desc
, time
, count
, base
, data1
;
3813 u32 blink1
, blink2
, ilink1
, ilink2
;
3816 base
= le32_to_cpu(priv
->card_alive
.error_event_table_ptr
);
3818 if (!iwl3945_hw_valid_rtc_data_addr(base
)) {
3819 IWL_ERR(priv
, "Not valid error log pointer 0x%08X\n", base
);
3823 rc
= iwl_grab_nic_access(priv
);
3825 IWL_WARN(priv
, "Can not read from adapter at this time.\n");
3829 count
= iwl_read_targ_mem(priv
, base
);
3831 if (ERROR_START_OFFSET
<= count
* ERROR_ELEM_SIZE
) {
3832 IWL_ERR(priv
, "Start IWL Error Log Dump:\n");
3833 IWL_ERR(priv
, "Status: 0x%08lX, count: %d\n",
3834 priv
->status
, count
);
3837 IWL_ERR(priv
, "Desc Time asrtPC blink2 "
3838 "ilink1 nmiPC Line\n");
3839 for (i
= ERROR_START_OFFSET
;
3840 i
< (count
* ERROR_ELEM_SIZE
) + ERROR_START_OFFSET
;
3841 i
+= ERROR_ELEM_SIZE
) {
3842 desc
= iwl_read_targ_mem(priv
, base
+ i
);
3844 iwl_read_targ_mem(priv
, base
+ i
+ 1 * sizeof(u32
));
3846 iwl_read_targ_mem(priv
, base
+ i
+ 2 * sizeof(u32
));
3848 iwl_read_targ_mem(priv
, base
+ i
+ 3 * sizeof(u32
));
3850 iwl_read_targ_mem(priv
, base
+ i
+ 4 * sizeof(u32
));
3852 iwl_read_targ_mem(priv
, base
+ i
+ 5 * sizeof(u32
));
3854 iwl_read_targ_mem(priv
, base
+ i
+ 6 * sizeof(u32
));
3857 "%-13s (#%d) %010u 0x%05X 0x%05X 0x%05X 0x%05X %u\n\n",
3858 desc_lookup(desc
), desc
, time
, blink1
, blink2
,
3859 ilink1
, ilink2
, data1
);
3862 iwl_release_nic_access(priv
);
3866 #define EVENT_START_OFFSET (6 * sizeof(u32))
3869 * iwl3945_print_event_log - Dump error event log to syslog
3871 * NOTE: Must be called with iwl_grab_nic_access() already obtained!
3873 static void iwl3945_print_event_log(struct iwl_priv
*priv
, u32 start_idx
,
3874 u32 num_events
, u32 mode
)
3877 u32 base
; /* SRAM byte address of event log header */
3878 u32 event_size
; /* 2 u32s, or 3 u32s if timestamp recorded */
3879 u32 ptr
; /* SRAM byte address of log data */
3880 u32 ev
, time
, data
; /* event log data */
3882 if (num_events
== 0)
3885 base
= le32_to_cpu(priv
->card_alive
.log_event_table_ptr
);
3888 event_size
= 2 * sizeof(u32
);
3890 event_size
= 3 * sizeof(u32
);
3892 ptr
= base
+ EVENT_START_OFFSET
+ (start_idx
* event_size
);
3894 /* "time" is actually "data" for mode 0 (no timestamp).
3895 * place event id # at far right for easier visual parsing. */
3896 for (i
= 0; i
< num_events
; i
++) {
3897 ev
= iwl_read_targ_mem(priv
, ptr
);
3899 time
= iwl_read_targ_mem(priv
, ptr
);
3903 IWL_ERR(priv
, "0x%08x\t%04u\n", time
, ev
);
3905 data
= iwl_read_targ_mem(priv
, ptr
);
3907 IWL_ERR(priv
, "%010u\t0x%08x\t%04u\n", time
, data
, ev
);
3912 static void iwl3945_dump_nic_event_log(struct iwl_priv
*priv
)
3915 u32 base
; /* SRAM byte address of event log header */
3916 u32 capacity
; /* event log capacity in # entries */
3917 u32 mode
; /* 0 - no timestamp, 1 - timestamp recorded */
3918 u32 num_wraps
; /* # times uCode wrapped to top of log */
3919 u32 next_entry
; /* index of next entry to be written by uCode */
3920 u32 size
; /* # entries that we'll print */
3922 base
= le32_to_cpu(priv
->card_alive
.log_event_table_ptr
);
3923 if (!iwl3945_hw_valid_rtc_data_addr(base
)) {
3924 IWL_ERR(priv
, "Invalid event log pointer 0x%08X\n", base
);
3928 rc
= iwl_grab_nic_access(priv
);
3930 IWL_WARN(priv
, "Can not read from adapter at this time.\n");
3934 /* event log header */
3935 capacity
= iwl_read_targ_mem(priv
, base
);
3936 mode
= iwl_read_targ_mem(priv
, base
+ (1 * sizeof(u32
)));
3937 num_wraps
= iwl_read_targ_mem(priv
, base
+ (2 * sizeof(u32
)));
3938 next_entry
= iwl_read_targ_mem(priv
, base
+ (3 * sizeof(u32
)));
3940 size
= num_wraps
? capacity
: next_entry
;
3942 /* bail out if nothing in log */
3944 IWL_ERR(priv
, "Start IWL Event Log Dump: nothing in log\n");
3945 iwl_release_nic_access(priv
);
3949 IWL_ERR(priv
, "Start IWL Event Log Dump: display count %d, wraps %d\n",
3952 /* if uCode has wrapped back to top of log, start at the oldest entry,
3953 * i.e the next one that uCode would fill. */
3955 iwl3945_print_event_log(priv
, next_entry
,
3956 capacity
- next_entry
, mode
);
3958 /* (then/else) start at top of log */
3959 iwl3945_print_event_log(priv
, 0, next_entry
, mode
);
3961 iwl_release_nic_access(priv
);
3965 * iwl3945_irq_handle_error - called for HW or SW error interrupt from card
3967 static void iwl3945_irq_handle_error(struct iwl_priv
*priv
)
3969 /* Set the FW error flag -- cleared on iwl3945_down */
3970 set_bit(STATUS_FW_ERROR
, &priv
->status
);
3972 /* Cancel currently queued command. */
3973 clear_bit(STATUS_HCMD_ACTIVE
, &priv
->status
);
3975 #ifdef CONFIG_IWL3945_DEBUG
3976 if (priv
->debug_level
& IWL_DL_FW_ERRORS
) {
3977 iwl3945_dump_nic_error_log(priv
);
3978 iwl3945_dump_nic_event_log(priv
);
3979 iwl3945_print_rx_config_cmd(priv
, &priv
->staging39_rxon
);
3983 wake_up_interruptible(&priv
->wait_command_queue
);
3985 /* Keep the restart process from trying to send host
3986 * commands by clearing the INIT status bit */
3987 clear_bit(STATUS_READY
, &priv
->status
);
3989 if (!test_bit(STATUS_EXIT_PENDING
, &priv
->status
)) {
3990 IWL_DEBUG(IWL_DL_INFO
| IWL_DL_FW_ERRORS
,
3991 "Restarting adapter due to uCode error.\n");
3993 if (iwl3945_is_associated(priv
)) {
3994 memcpy(&priv
->recovery39_rxon
, &priv
->active39_rxon
,
3995 sizeof(priv
->recovery39_rxon
));
3996 priv
->error_recovering
= 1;
3998 queue_work(priv
->workqueue
, &priv
->restart
);
4002 static void iwl3945_error_recovery(struct iwl_priv
*priv
)
4004 unsigned long flags
;
4006 memcpy(&priv
->staging39_rxon
, &priv
->recovery39_rxon
,
4007 sizeof(priv
->staging39_rxon
));
4008 priv
->staging39_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
4009 iwl3945_commit_rxon(priv
);
4011 iwl3945_add_station(priv
, priv
->bssid
, 1, 0);
4013 spin_lock_irqsave(&priv
->lock
, flags
);
4014 priv
->assoc_id
= le16_to_cpu(priv
->staging39_rxon
.assoc_id
);
4015 priv
->error_recovering
= 0;
4016 spin_unlock_irqrestore(&priv
->lock
, flags
);
4019 static void iwl3945_irq_tasklet(struct iwl_priv
*priv
)
4021 u32 inta
, handled
= 0;
4023 unsigned long flags
;
4024 #ifdef CONFIG_IWL3945_DEBUG
4028 spin_lock_irqsave(&priv
->lock
, flags
);
4030 /* Ack/clear/reset pending uCode interrupts.
4031 * Note: Some bits in CSR_INT are "OR" of bits in CSR_FH_INT_STATUS,
4032 * and will clear only when CSR_FH_INT_STATUS gets cleared. */
4033 inta
= iwl_read32(priv
, CSR_INT
);
4034 iwl_write32(priv
, CSR_INT
, inta
);
4036 /* Ack/clear/reset pending flow-handler (DMA) interrupts.
4037 * Any new interrupts that happen after this, either while we're
4038 * in this tasklet, or later, will show up in next ISR/tasklet. */
4039 inta_fh
= iwl_read32(priv
, CSR_FH_INT_STATUS
);
4040 iwl_write32(priv
, CSR_FH_INT_STATUS
, inta_fh
);
4042 #ifdef CONFIG_IWL3945_DEBUG
4043 if (priv
->debug_level
& IWL_DL_ISR
) {
4044 /* just for debug */
4045 inta_mask
= iwl_read32(priv
, CSR_INT_MASK
);
4046 IWL_DEBUG_ISR("inta 0x%08x, enabled 0x%08x, fh 0x%08x\n",
4047 inta
, inta_mask
, inta_fh
);
4051 /* Since CSR_INT and CSR_FH_INT_STATUS reads and clears are not
4052 * atomic, make sure that inta covers all the interrupts that
4053 * we've discovered, even if FH interrupt came in just after
4054 * reading CSR_INT. */
4055 if (inta_fh
& CSR39_FH_INT_RX_MASK
)
4056 inta
|= CSR_INT_BIT_FH_RX
;
4057 if (inta_fh
& CSR39_FH_INT_TX_MASK
)
4058 inta
|= CSR_INT_BIT_FH_TX
;
4060 /* Now service all interrupt bits discovered above. */
4061 if (inta
& CSR_INT_BIT_HW_ERR
) {
4062 IWL_ERR(priv
, "Microcode HW error detected. Restarting.\n");
4064 /* Tell the device to stop sending interrupts */
4065 iwl3945_disable_interrupts(priv
);
4067 iwl3945_irq_handle_error(priv
);
4069 handled
|= CSR_INT_BIT_HW_ERR
;
4071 spin_unlock_irqrestore(&priv
->lock
, flags
);
4076 #ifdef CONFIG_IWL3945_DEBUG
4077 if (priv
->debug_level
& (IWL_DL_ISR
)) {
4078 /* NIC fires this, but we don't use it, redundant with WAKEUP */
4079 if (inta
& CSR_INT_BIT_SCD
)
4080 IWL_DEBUG_ISR("Scheduler finished to transmit "
4081 "the frame/frames.\n");
4083 /* Alive notification via Rx interrupt will do the real work */
4084 if (inta
& CSR_INT_BIT_ALIVE
)
4085 IWL_DEBUG_ISR("Alive interrupt\n");
4088 /* Safely ignore these bits for debug checks below */
4089 inta
&= ~(CSR_INT_BIT_SCD
| CSR_INT_BIT_ALIVE
);
4091 /* Error detected by uCode */
4092 if (inta
& CSR_INT_BIT_SW_ERR
) {
4093 IWL_ERR(priv
, "Microcode SW error detected. "
4094 "Restarting 0x%X.\n", inta
);
4095 iwl3945_irq_handle_error(priv
);
4096 handled
|= CSR_INT_BIT_SW_ERR
;
4099 /* uCode wakes up after power-down sleep */
4100 if (inta
& CSR_INT_BIT_WAKEUP
) {
4101 IWL_DEBUG_ISR("Wakeup interrupt\n");
4102 iwl3945_rx_queue_update_write_ptr(priv
, &priv
->rxq
);
4103 iwl3945_tx_queue_update_write_ptr(priv
, &priv
->txq39
[0]);
4104 iwl3945_tx_queue_update_write_ptr(priv
, &priv
->txq39
[1]);
4105 iwl3945_tx_queue_update_write_ptr(priv
, &priv
->txq39
[2]);
4106 iwl3945_tx_queue_update_write_ptr(priv
, &priv
->txq39
[3]);
4107 iwl3945_tx_queue_update_write_ptr(priv
, &priv
->txq39
[4]);
4108 iwl3945_tx_queue_update_write_ptr(priv
, &priv
->txq39
[5]);
4110 handled
|= CSR_INT_BIT_WAKEUP
;
4113 /* All uCode command responses, including Tx command responses,
4114 * Rx "responses" (frame-received notification), and other
4115 * notifications from uCode come through here*/
4116 if (inta
& (CSR_INT_BIT_FH_RX
| CSR_INT_BIT_SW_RX
)) {
4117 iwl3945_rx_handle(priv
);
4118 handled
|= (CSR_INT_BIT_FH_RX
| CSR_INT_BIT_SW_RX
);
4121 if (inta
& CSR_INT_BIT_FH_TX
) {
4122 IWL_DEBUG_ISR("Tx interrupt\n");
4124 iwl_write32(priv
, CSR_FH_INT_STATUS
, (1 << 6));
4125 if (!iwl_grab_nic_access(priv
)) {
4126 iwl_write_direct32(priv
, FH39_TCSR_CREDIT
4127 (FH39_SRVC_CHNL
), 0x0);
4128 iwl_release_nic_access(priv
);
4130 handled
|= CSR_INT_BIT_FH_TX
;
4133 if (inta
& ~handled
)
4134 IWL_ERR(priv
, "Unhandled INTA bits 0x%08x\n", inta
& ~handled
);
4136 if (inta
& ~CSR_INI_SET_MASK
) {
4137 IWL_WARN(priv
, "Disabled INTA bits 0x%08x were pending\n",
4138 inta
& ~CSR_INI_SET_MASK
);
4139 IWL_WARN(priv
, " with FH_INT = 0x%08x\n", inta_fh
);
4142 /* Re-enable all interrupts */
4143 /* only Re-enable if disabled by irq */
4144 if (test_bit(STATUS_INT_ENABLED
, &priv
->status
))
4145 iwl3945_enable_interrupts(priv
);
4147 #ifdef CONFIG_IWL3945_DEBUG
4148 if (priv
->debug_level
& (IWL_DL_ISR
)) {
4149 inta
= iwl_read32(priv
, CSR_INT
);
4150 inta_mask
= iwl_read32(priv
, CSR_INT_MASK
);
4151 inta_fh
= iwl_read32(priv
, CSR_FH_INT_STATUS
);
4152 IWL_DEBUG_ISR("End inta 0x%08x, enabled 0x%08x, fh 0x%08x, "
4153 "flags 0x%08lx\n", inta
, inta_mask
, inta_fh
, flags
);
4156 spin_unlock_irqrestore(&priv
->lock
, flags
);
4159 static irqreturn_t
iwl3945_isr(int irq
, void *data
)
4161 struct iwl_priv
*priv
= data
;
4162 u32 inta
, inta_mask
;
4167 spin_lock(&priv
->lock
);
4169 /* Disable (but don't clear!) interrupts here to avoid
4170 * back-to-back ISRs and sporadic interrupts from our NIC.
4171 * If we have something to service, the tasklet will re-enable ints.
4172 * If we *don't* have something, we'll re-enable before leaving here. */
4173 inta_mask
= iwl_read32(priv
, CSR_INT_MASK
); /* just for debug */
4174 iwl_write32(priv
, CSR_INT_MASK
, 0x00000000);
4176 /* Discover which interrupts are active/pending */
4177 inta
= iwl_read32(priv
, CSR_INT
);
4178 inta_fh
= iwl_read32(priv
, CSR_FH_INT_STATUS
);
4180 /* Ignore interrupt if there's nothing in NIC to service.
4181 * This may be due to IRQ shared with another device,
4182 * or due to sporadic interrupts thrown from our NIC. */
4183 if (!inta
&& !inta_fh
) {
4184 IWL_DEBUG_ISR("Ignore interrupt, inta == 0, inta_fh == 0\n");
4188 if ((inta
== 0xFFFFFFFF) || ((inta
& 0xFFFFFFF0) == 0xa5a5a5a0)) {
4189 /* Hardware disappeared */
4190 IWL_WARN(priv
, "HARDWARE GONE?? INTA == 0x%08x\n", inta
);
4194 IWL_DEBUG_ISR("ISR inta 0x%08x, enabled 0x%08x, fh 0x%08x\n",
4195 inta
, inta_mask
, inta_fh
);
4197 inta
&= ~CSR_INT_BIT_SCD
;
4199 /* iwl3945_irq_tasklet() will service interrupts and re-enable them */
4200 if (likely(inta
|| inta_fh
))
4201 tasklet_schedule(&priv
->irq_tasklet
);
4203 spin_unlock(&priv
->lock
);
4208 /* re-enable interrupts here since we don't have anything to service. */
4209 /* only Re-enable if disabled by irq */
4210 if (test_bit(STATUS_INT_ENABLED
, &priv
->status
))
4211 iwl3945_enable_interrupts(priv
);
4212 spin_unlock(&priv
->lock
);
4216 /************************** EEPROM BANDS ****************************
4218 * The iwl3945_eeprom_band definitions below provide the mapping from the
4219 * EEPROM contents to the specific channel number supported for each
4222 * For example, iwl3945_priv->eeprom39.band_3_channels[4] from the band_3
4223 * definition below maps to physical channel 42 in the 5.2GHz spectrum.
4224 * The specific geography and calibration information for that channel
4225 * is contained in the eeprom map itself.
4227 * During init, we copy the eeprom information and channel map
4228 * information into priv->channel_info_24/52 and priv->channel_map_24/52
4230 * channel_map_24/52 provides the index in the channel_info array for a
4231 * given channel. We have to have two separate maps as there is channel
4232 * overlap with the 2.4GHz and 5.2GHz spectrum as seen in band_1 and
4235 * A value of 0xff stored in the channel_map indicates that the channel
4236 * is not supported by the hardware at all.
4238 * A value of 0xfe in the channel_map indicates that the channel is not
4239 * valid for Tx with the current hardware. This means that
4240 * while the system can tune and receive on a given channel, it may not
4241 * be able to associate or transmit any frames on that
4242 * channel. There is no corresponding channel information for that
4245 *********************************************************************/
4248 static const u8 iwl3945_eeprom_band_1
[14] = {
4249 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14
4253 static const u8 iwl3945_eeprom_band_2
[] = { /* 4915-5080MHz */
4254 183, 184, 185, 187, 188, 189, 192, 196, 7, 8, 11, 12, 16
4257 static const u8 iwl3945_eeprom_band_3
[] = { /* 5170-5320MHz */
4258 34, 36, 38, 40, 42, 44, 46, 48, 52, 56, 60, 64
4261 static const u8 iwl3945_eeprom_band_4
[] = { /* 5500-5700MHz */
4262 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140
4265 static const u8 iwl3945_eeprom_band_5
[] = { /* 5725-5825MHz */
4266 145, 149, 153, 157, 161, 165
4269 static void iwl3945_init_band_reference(const struct iwl_priv
*priv
, int band
,
4270 int *eeprom_ch_count
,
4271 const struct iwl_eeprom_channel
4273 const u8
**eeprom_ch_index
)
4276 case 1: /* 2.4GHz band */
4277 *eeprom_ch_count
= ARRAY_SIZE(iwl3945_eeprom_band_1
);
4278 *eeprom_ch_info
= priv
->eeprom39
.band_1_channels
;
4279 *eeprom_ch_index
= iwl3945_eeprom_band_1
;
4281 case 2: /* 4.9GHz band */
4282 *eeprom_ch_count
= ARRAY_SIZE(iwl3945_eeprom_band_2
);
4283 *eeprom_ch_info
= priv
->eeprom39
.band_2_channels
;
4284 *eeprom_ch_index
= iwl3945_eeprom_band_2
;
4286 case 3: /* 5.2GHz band */
4287 *eeprom_ch_count
= ARRAY_SIZE(iwl3945_eeprom_band_3
);
4288 *eeprom_ch_info
= priv
->eeprom39
.band_3_channels
;
4289 *eeprom_ch_index
= iwl3945_eeprom_band_3
;
4291 case 4: /* 5.5GHz band */
4292 *eeprom_ch_count
= ARRAY_SIZE(iwl3945_eeprom_band_4
);
4293 *eeprom_ch_info
= priv
->eeprom39
.band_4_channels
;
4294 *eeprom_ch_index
= iwl3945_eeprom_band_4
;
4296 case 5: /* 5.7GHz band */
4297 *eeprom_ch_count
= ARRAY_SIZE(iwl3945_eeprom_band_5
);
4298 *eeprom_ch_info
= priv
->eeprom39
.band_5_channels
;
4299 *eeprom_ch_index
= iwl3945_eeprom_band_5
;
4308 * iwl3945_get_channel_info - Find driver's private channel info
4310 * Based on band and channel number.
4312 const struct iwl_channel_info
*
4313 iwl3945_get_channel_info(const struct iwl_priv
*priv
,
4314 enum ieee80211_band band
, u16 channel
)
4319 case IEEE80211_BAND_5GHZ
:
4320 for (i
= 14; i
< priv
->channel_count
; i
++) {
4321 if (priv
->channel_info
[i
].channel
== channel
)
4322 return &priv
->channel_info
[i
];
4326 case IEEE80211_BAND_2GHZ
:
4327 if (channel
>= 1 && channel
<= 14)
4328 return &priv
->channel_info
[channel
- 1];
4330 case IEEE80211_NUM_BANDS
:
4337 #define CHECK_AND_PRINT(x) ((eeprom_ch_info[ch].flags & EEPROM_CHANNEL_##x) \
4341 * iwl3945_init_channel_map - Set up driver's info for all possible channels
4343 static int iwl3945_init_channel_map(struct iwl_priv
*priv
)
4345 int eeprom_ch_count
= 0;
4346 const u8
*eeprom_ch_index
= NULL
;
4347 const struct iwl_eeprom_channel
*eeprom_ch_info
= NULL
;
4349 struct iwl_channel_info
*ch_info
;
4351 if (priv
->channel_count
) {
4352 IWL_DEBUG_INFO("Channel map already initialized.\n");
4356 if (priv
->eeprom39
.version
< 0x2f) {
4357 IWL_WARN(priv
, "Unsupported EEPROM version: 0x%04X\n",
4358 priv
->eeprom39
.version
);
4362 IWL_DEBUG_INFO("Initializing regulatory info from EEPROM\n");
4364 priv
->channel_count
=
4365 ARRAY_SIZE(iwl3945_eeprom_band_1
) +
4366 ARRAY_SIZE(iwl3945_eeprom_band_2
) +
4367 ARRAY_SIZE(iwl3945_eeprom_band_3
) +
4368 ARRAY_SIZE(iwl3945_eeprom_band_4
) +
4369 ARRAY_SIZE(iwl3945_eeprom_band_5
);
4371 IWL_DEBUG_INFO("Parsing data for %d channels.\n", priv
->channel_count
);
4373 priv
->channel_info
= kzalloc(sizeof(struct iwl_channel_info
) *
4374 priv
->channel_count
, GFP_KERNEL
);
4375 if (!priv
->channel_info
) {
4376 IWL_ERR(priv
, "Could not allocate channel_info\n");
4377 priv
->channel_count
= 0;
4381 ch_info
= priv
->channel_info
;
4383 /* Loop through the 5 EEPROM bands adding them in order to the
4384 * channel map we maintain (that contains additional information than
4385 * what just in the EEPROM) */
4386 for (band
= 1; band
<= 5; band
++) {
4388 iwl3945_init_band_reference(priv
, band
, &eeprom_ch_count
,
4389 &eeprom_ch_info
, &eeprom_ch_index
);
4391 /* Loop through each band adding each of the channels */
4392 for (ch
= 0; ch
< eeprom_ch_count
; ch
++) {
4393 ch_info
->channel
= eeprom_ch_index
[ch
];
4394 ch_info
->band
= (band
== 1) ? IEEE80211_BAND_2GHZ
:
4395 IEEE80211_BAND_5GHZ
;
4397 /* permanently store EEPROM's channel regulatory flags
4398 * and max power in channel info database. */
4399 ch_info
->eeprom
= eeprom_ch_info
[ch
];
4401 /* Copy the run-time flags so they are there even on
4402 * invalid channels */
4403 ch_info
->flags
= eeprom_ch_info
[ch
].flags
;
4405 if (!(is_channel_valid(ch_info
))) {
4406 IWL_DEBUG_INFO("Ch. %d Flags %x [%sGHz] - "
4410 is_channel_a_band(ch_info
) ?
4416 /* Initialize regulatory-based run-time data */
4417 ch_info
->max_power_avg
= ch_info
->curr_txpow
=
4418 eeprom_ch_info
[ch
].max_power_avg
;
4419 ch_info
->scan_power
= eeprom_ch_info
[ch
].max_power_avg
;
4420 ch_info
->min_power
= 0;
4422 IWL_DEBUG_INFO("Ch. %d [%sGHz] %s%s%s%s%s%s(0x%02x"
4423 " %ddBm): Ad-Hoc %ssupported\n",
4425 is_channel_a_band(ch_info
) ?
4427 CHECK_AND_PRINT(VALID
),
4428 CHECK_AND_PRINT(IBSS
),
4429 CHECK_AND_PRINT(ACTIVE
),
4430 CHECK_AND_PRINT(RADAR
),
4431 CHECK_AND_PRINT(WIDE
),
4432 CHECK_AND_PRINT(DFS
),
4433 eeprom_ch_info
[ch
].flags
,
4434 eeprom_ch_info
[ch
].max_power_avg
,
4435 ((eeprom_ch_info
[ch
].
4436 flags
& EEPROM_CHANNEL_IBSS
)
4437 && !(eeprom_ch_info
[ch
].
4438 flags
& EEPROM_CHANNEL_RADAR
))
4441 /* Set the user_txpower_limit to the highest power
4442 * supported by any channel */
4443 if (eeprom_ch_info
[ch
].max_power_avg
>
4444 priv
->user_txpower_limit
)
4445 priv
->user_txpower_limit
=
4446 eeprom_ch_info
[ch
].max_power_avg
;
4452 /* Set up txpower settings in driver for all channels */
4453 if (iwl3945_txpower_set_from_eeprom(priv
))
4460 * iwl3945_free_channel_map - undo allocations in iwl3945_init_channel_map
4462 static void iwl3945_free_channel_map(struct iwl_priv
*priv
)
4464 kfree(priv
->channel_info
);
4465 priv
->channel_count
= 0;
4468 /* For active scan, listen ACTIVE_DWELL_TIME (msec) on each channel after
4469 * sending probe req. This should be set long enough to hear probe responses
4470 * from more than one AP. */
4471 #define IWL_ACTIVE_DWELL_TIME_24 (30) /* all times in msec */
4472 #define IWL_ACTIVE_DWELL_TIME_52 (20)
4474 #define IWL_ACTIVE_DWELL_FACTOR_24GHZ (3)
4475 #define IWL_ACTIVE_DWELL_FACTOR_52GHZ (2)
4477 /* For faster active scanning, scan will move to the next channel if fewer than
4478 * PLCP_QUIET_THRESH packets are heard on this channel within
4479 * ACTIVE_QUIET_TIME after sending probe request. This shortens the dwell
4480 * time if it's a quiet channel (nothing responded to our probe, and there's
4481 * no other traffic).
4482 * Disable "quiet" feature by setting PLCP_QUIET_THRESH to 0. */
4483 #define IWL_PLCP_QUIET_THRESH __constant_cpu_to_le16(1) /* packets */
4484 #define IWL_ACTIVE_QUIET_TIME __constant_cpu_to_le16(10) /* msec */
4486 /* For passive scan, listen PASSIVE_DWELL_TIME (msec) on each channel.
4487 * Must be set longer than active dwell time.
4488 * For the most reliable scan, set > AP beacon interval (typically 100msec). */
4489 #define IWL_PASSIVE_DWELL_TIME_24 (20) /* all times in msec */
4490 #define IWL_PASSIVE_DWELL_TIME_52 (10)
4491 #define IWL_PASSIVE_DWELL_BASE (100)
4492 #define IWL_CHANNEL_TUNE_TIME 5
4494 #define IWL_SCAN_PROBE_MASK(n) (BIT(n) | (BIT(n) - BIT(1)))
4496 static inline u16
iwl3945_get_active_dwell_time(struct iwl_priv
*priv
,
4497 enum ieee80211_band band
,
4500 if (band
== IEEE80211_BAND_5GHZ
)
4501 return IWL_ACTIVE_DWELL_TIME_52
+
4502 IWL_ACTIVE_DWELL_FACTOR_52GHZ
* (n_probes
+ 1);
4504 return IWL_ACTIVE_DWELL_TIME_24
+
4505 IWL_ACTIVE_DWELL_FACTOR_24GHZ
* (n_probes
+ 1);
4508 static u16
iwl3945_get_passive_dwell_time(struct iwl_priv
*priv
,
4509 enum ieee80211_band band
)
4511 u16 passive
= (band
== IEEE80211_BAND_2GHZ
) ?
4512 IWL_PASSIVE_DWELL_BASE
+ IWL_PASSIVE_DWELL_TIME_24
:
4513 IWL_PASSIVE_DWELL_BASE
+ IWL_PASSIVE_DWELL_TIME_52
;
4515 if (iwl3945_is_associated(priv
)) {
4516 /* If we're associated, we clamp the maximum passive
4517 * dwell time to be 98% of the beacon interval (minus
4518 * 2 * channel tune time) */
4519 passive
= priv
->beacon_int
;
4520 if ((passive
> IWL_PASSIVE_DWELL_BASE
) || !passive
)
4521 passive
= IWL_PASSIVE_DWELL_BASE
;
4522 passive
= (passive
* 98) / 100 - IWL_CHANNEL_TUNE_TIME
* 2;
4528 static int iwl3945_get_channels_for_scan(struct iwl_priv
*priv
,
4529 enum ieee80211_band band
,
4530 u8 is_active
, u8 n_probes
,
4531 struct iwl3945_scan_channel
*scan_ch
)
4533 const struct ieee80211_channel
*channels
= NULL
;
4534 const struct ieee80211_supported_band
*sband
;
4535 const struct iwl_channel_info
*ch_info
;
4536 u16 passive_dwell
= 0;
4537 u16 active_dwell
= 0;
4540 sband
= iwl3945_get_band(priv
, band
);
4544 channels
= sband
->channels
;
4546 active_dwell
= iwl3945_get_active_dwell_time(priv
, band
, n_probes
);
4547 passive_dwell
= iwl3945_get_passive_dwell_time(priv
, band
);
4549 if (passive_dwell
<= active_dwell
)
4550 passive_dwell
= active_dwell
+ 1;
4552 for (i
= 0, added
= 0; i
< sband
->n_channels
; i
++) {
4553 if (channels
[i
].flags
& IEEE80211_CHAN_DISABLED
)
4556 scan_ch
->channel
= channels
[i
].hw_value
;
4558 ch_info
= iwl3945_get_channel_info(priv
, band
, scan_ch
->channel
);
4559 if (!is_channel_valid(ch_info
)) {
4560 IWL_DEBUG_SCAN("Channel %d is INVALID for this band.\n",
4565 scan_ch
->active_dwell
= cpu_to_le16(active_dwell
);
4566 scan_ch
->passive_dwell
= cpu_to_le16(passive_dwell
);
4567 /* If passive , set up for auto-switch
4568 * and use long active_dwell time.
4570 if (!is_active
|| is_channel_passive(ch_info
) ||
4571 (channels
[i
].flags
& IEEE80211_CHAN_PASSIVE_SCAN
)) {
4572 scan_ch
->type
= 0; /* passive */
4573 if (IWL_UCODE_API(priv
->ucode_ver
) == 1)
4574 scan_ch
->active_dwell
= cpu_to_le16(passive_dwell
- 1);
4576 scan_ch
->type
= 1; /* active */
4579 /* Set direct probe bits. These may be used both for active
4580 * scan channels (probes gets sent right away),
4581 * or for passive channels (probes get se sent only after
4582 * hearing clear Rx packet).*/
4583 if (IWL_UCODE_API(priv
->ucode_ver
) >= 2) {
4585 scan_ch
->type
|= IWL_SCAN_PROBE_MASK(n_probes
);
4587 /* uCode v1 does not allow setting direct probe bits on
4588 * passive channel. */
4589 if ((scan_ch
->type
& 1) && n_probes
)
4590 scan_ch
->type
|= IWL_SCAN_PROBE_MASK(n_probes
);
4593 /* Set txpower levels to defaults */
4594 scan_ch
->tpc
.dsp_atten
= 110;
4595 /* scan_pwr_info->tpc.dsp_atten; */
4597 /*scan_pwr_info->tpc.tx_gain; */
4598 if (band
== IEEE80211_BAND_5GHZ
)
4599 scan_ch
->tpc
.tx_gain
= ((1 << 5) | (3 << 3)) | 3;
4601 scan_ch
->tpc
.tx_gain
= ((1 << 5) | (5 << 3));
4602 /* NOTE: if we were doing 6Mb OFDM for scans we'd use
4604 * scan_ch->tpc.tx_gain = ((1 << 5) | (2 << 3)) | 3;
4608 IWL_DEBUG_SCAN("Scanning %d [%s %d]\n",
4610 (scan_ch
->type
& 1) ? "ACTIVE" : "PASSIVE",
4611 (scan_ch
->type
& 1) ?
4612 active_dwell
: passive_dwell
);
4618 IWL_DEBUG_SCAN("total channels to scan %d \n", added
);
4622 static void iwl3945_init_hw_rates(struct iwl_priv
*priv
,
4623 struct ieee80211_rate
*rates
)
4627 for (i
= 0; i
< IWL_RATE_COUNT
; i
++) {
4628 rates
[i
].bitrate
= iwl3945_rates
[i
].ieee
* 5;
4629 rates
[i
].hw_value
= i
; /* Rate scaling will work on indexes */
4630 rates
[i
].hw_value_short
= i
;
4632 if ((i
> IWL39_LAST_OFDM_RATE
) || (i
< IWL_FIRST_OFDM_RATE
)) {
4634 * If CCK != 1M then set short preamble rate flag.
4636 rates
[i
].flags
|= (iwl3945_rates
[i
].plcp
== 10) ?
4637 0 : IEEE80211_RATE_SHORT_PREAMBLE
;
4643 * iwl3945_init_geos - Initialize mac80211's geo/channel info based from eeprom
4645 static int iwl3945_init_geos(struct iwl_priv
*priv
)
4647 struct iwl_channel_info
*ch
;
4648 struct ieee80211_supported_band
*sband
;
4649 struct ieee80211_channel
*channels
;
4650 struct ieee80211_channel
*geo_ch
;
4651 struct ieee80211_rate
*rates
;
4654 if (priv
->bands
[IEEE80211_BAND_2GHZ
].n_bitrates
||
4655 priv
->bands
[IEEE80211_BAND_5GHZ
].n_bitrates
) {
4656 IWL_DEBUG_INFO("Geography modes already initialized.\n");
4657 set_bit(STATUS_GEO_CONFIGURED
, &priv
->status
);
4661 channels
= kzalloc(sizeof(struct ieee80211_channel
) *
4662 priv
->channel_count
, GFP_KERNEL
);
4666 rates
= kzalloc((sizeof(struct ieee80211_rate
) * (IWL_RATE_COUNT
+ 1)),
4673 /* 5.2GHz channels start after the 2.4GHz channels */
4674 sband
= &priv
->bands
[IEEE80211_BAND_5GHZ
];
4675 sband
->channels
= &channels
[ARRAY_SIZE(iwl3945_eeprom_band_1
)];
4677 sband
->bitrates
= &rates
[IWL_FIRST_OFDM_RATE
];
4678 sband
->n_bitrates
= IWL_RATE_COUNT
- IWL_FIRST_OFDM_RATE
;
4680 sband
= &priv
->bands
[IEEE80211_BAND_2GHZ
];
4681 sband
->channels
= channels
;
4683 sband
->bitrates
= rates
;
4684 sband
->n_bitrates
= IWL_RATE_COUNT
;
4686 priv
->ieee_channels
= channels
;
4687 priv
->ieee_rates
= rates
;
4689 iwl3945_init_hw_rates(priv
, rates
);
4691 for (i
= 0; i
< priv
->channel_count
; i
++) {
4692 ch
= &priv
->channel_info
[i
];
4694 /* FIXME: might be removed if scan is OK*/
4695 if (!is_channel_valid(ch
))
4698 if (is_channel_a_band(ch
))
4699 sband
= &priv
->bands
[IEEE80211_BAND_5GHZ
];
4701 sband
= &priv
->bands
[IEEE80211_BAND_2GHZ
];
4703 geo_ch
= &sband
->channels
[sband
->n_channels
++];
4705 geo_ch
->center_freq
= ieee80211_channel_to_frequency(ch
->channel
);
4706 geo_ch
->max_power
= ch
->max_power_avg
;
4707 geo_ch
->max_antenna_gain
= 0xff;
4708 geo_ch
->hw_value
= ch
->channel
;
4710 if (is_channel_valid(ch
)) {
4711 if (!(ch
->flags
& EEPROM_CHANNEL_IBSS
))
4712 geo_ch
->flags
|= IEEE80211_CHAN_NO_IBSS
;
4714 if (!(ch
->flags
& EEPROM_CHANNEL_ACTIVE
))
4715 geo_ch
->flags
|= IEEE80211_CHAN_PASSIVE_SCAN
;
4717 if (ch
->flags
& EEPROM_CHANNEL_RADAR
)
4718 geo_ch
->flags
|= IEEE80211_CHAN_RADAR
;
4720 if (ch
->max_power_avg
> priv
->max_channel_txpower_limit
)
4721 priv
->max_channel_txpower_limit
=
4724 geo_ch
->flags
|= IEEE80211_CHAN_DISABLED
;
4727 /* Save flags for reg domain usage */
4728 geo_ch
->orig_flags
= geo_ch
->flags
;
4730 IWL_DEBUG_INFO("Channel %d Freq=%d[%sGHz] %s flag=0%X\n",
4731 ch
->channel
, geo_ch
->center_freq
,
4732 is_channel_a_band(ch
) ? "5.2" : "2.4",
4733 geo_ch
->flags
& IEEE80211_CHAN_DISABLED
?
4734 "restricted" : "valid",
4738 if ((priv
->bands
[IEEE80211_BAND_5GHZ
].n_channels
== 0) &&
4739 priv
->cfg
->sku
& IWL_SKU_A
) {
4740 IWL_INFO(priv
, "Incorrectly detected BG card as ABG. "
4741 "Please send your PCI ID 0x%04X:0x%04X to maintainer.\n",
4742 priv
->pci_dev
->device
, priv
->pci_dev
->subsystem_device
);
4743 priv
->cfg
->sku
&= ~IWL_SKU_A
;
4746 IWL_INFO(priv
, "Tunable channels: %d 802.11bg, %d 802.11a channels\n",
4747 priv
->bands
[IEEE80211_BAND_2GHZ
].n_channels
,
4748 priv
->bands
[IEEE80211_BAND_5GHZ
].n_channels
);
4750 if (priv
->bands
[IEEE80211_BAND_2GHZ
].n_channels
)
4751 priv
->hw
->wiphy
->bands
[IEEE80211_BAND_2GHZ
] =
4752 &priv
->bands
[IEEE80211_BAND_2GHZ
];
4753 if (priv
->bands
[IEEE80211_BAND_5GHZ
].n_channels
)
4754 priv
->hw
->wiphy
->bands
[IEEE80211_BAND_5GHZ
] =
4755 &priv
->bands
[IEEE80211_BAND_5GHZ
];
4757 set_bit(STATUS_GEO_CONFIGURED
, &priv
->status
);
4763 * iwl3945_free_geos - undo allocations in iwl3945_init_geos
4765 static void iwl3945_free_geos(struct iwl_priv
*priv
)
4767 kfree(priv
->ieee_channels
);
4768 kfree(priv
->ieee_rates
);
4769 clear_bit(STATUS_GEO_CONFIGURED
, &priv
->status
);
4772 /******************************************************************************
4774 * uCode download functions
4776 ******************************************************************************/
4778 static void iwl3945_dealloc_ucode_pci(struct iwl_priv
*priv
)
4780 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_code
);
4781 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_data
);
4782 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_data_backup
);
4783 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_init
);
4784 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_init_data
);
4785 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_boot
);
4789 * iwl3945_verify_inst_full - verify runtime uCode image in card vs. host,
4790 * looking at all data.
4792 static int iwl3945_verify_inst_full(struct iwl_priv
*priv
, __le32
*image
, u32 len
)
4799 IWL_DEBUG_INFO("ucode inst image size is %u\n", len
);
4801 rc
= iwl_grab_nic_access(priv
);
4805 iwl_write_direct32(priv
, HBUS_TARG_MEM_RADDR
,
4806 IWL39_RTC_INST_LOWER_BOUND
);
4809 for (; len
> 0; len
-= sizeof(u32
), image
++) {
4810 /* read data comes through single port, auto-incr addr */
4811 /* NOTE: Use the debugless read so we don't flood kernel log
4812 * if IWL_DL_IO is set */
4813 val
= _iwl_read_direct32(priv
, HBUS_TARG_MEM_RDAT
);
4814 if (val
!= le32_to_cpu(*image
)) {
4815 IWL_ERR(priv
, "uCode INST section is invalid at "
4816 "offset 0x%x, is 0x%x, s/b 0x%x\n",
4817 save_len
- len
, val
, le32_to_cpu(*image
));
4825 iwl_release_nic_access(priv
);
4828 IWL_DEBUG_INFO("ucode image in INSTRUCTION memory is good\n");
4835 * iwl3945_verify_inst_sparse - verify runtime uCode image in card vs. host,
4836 * using sample data 100 bytes apart. If these sample points are good,
4837 * it's a pretty good bet that everything between them is good, too.
4839 static int iwl3945_verify_inst_sparse(struct iwl_priv
*priv
, __le32
*image
, u32 len
)
4846 IWL_DEBUG_INFO("ucode inst image size is %u\n", len
);
4848 rc
= iwl_grab_nic_access(priv
);
4852 for (i
= 0; i
< len
; i
+= 100, image
+= 100/sizeof(u32
)) {
4853 /* read data comes through single port, auto-incr addr */
4854 /* NOTE: Use the debugless read so we don't flood kernel log
4855 * if IWL_DL_IO is set */
4856 iwl_write_direct32(priv
, HBUS_TARG_MEM_RADDR
,
4857 i
+ IWL39_RTC_INST_LOWER_BOUND
);
4858 val
= _iwl_read_direct32(priv
, HBUS_TARG_MEM_RDAT
);
4859 if (val
!= le32_to_cpu(*image
)) {
4860 #if 0 /* Enable this if you want to see details */
4861 IWL_ERR(priv
, "uCode INST section is invalid at "
4862 "offset 0x%x, is 0x%x, s/b 0x%x\n",
4872 iwl_release_nic_access(priv
);
4879 * iwl3945_verify_ucode - determine which instruction image is in SRAM,
4880 * and verify its contents
4882 static int iwl3945_verify_ucode(struct iwl_priv
*priv
)
4889 image
= (__le32
*)priv
->ucode_boot
.v_addr
;
4890 len
= priv
->ucode_boot
.len
;
4891 rc
= iwl3945_verify_inst_sparse(priv
, image
, len
);
4893 IWL_DEBUG_INFO("Bootstrap uCode is good in inst SRAM\n");
4897 /* Try initialize */
4898 image
= (__le32
*)priv
->ucode_init
.v_addr
;
4899 len
= priv
->ucode_init
.len
;
4900 rc
= iwl3945_verify_inst_sparse(priv
, image
, len
);
4902 IWL_DEBUG_INFO("Initialize uCode is good in inst SRAM\n");
4906 /* Try runtime/protocol */
4907 image
= (__le32
*)priv
->ucode_code
.v_addr
;
4908 len
= priv
->ucode_code
.len
;
4909 rc
= iwl3945_verify_inst_sparse(priv
, image
, len
);
4911 IWL_DEBUG_INFO("Runtime uCode is good in inst SRAM\n");
4915 IWL_ERR(priv
, "NO VALID UCODE IMAGE IN INSTRUCTION SRAM!!\n");
4917 /* Since nothing seems to match, show first several data entries in
4918 * instruction SRAM, so maybe visual inspection will give a clue.
4919 * Selection of bootstrap image (vs. other images) is arbitrary. */
4920 image
= (__le32
*)priv
->ucode_boot
.v_addr
;
4921 len
= priv
->ucode_boot
.len
;
4922 rc
= iwl3945_verify_inst_full(priv
, image
, len
);
4927 static void iwl3945_nic_start(struct iwl_priv
*priv
)
4929 /* Remove all resets to allow NIC to operate */
4930 iwl_write32(priv
, CSR_RESET
, 0);
4934 * iwl3945_read_ucode - Read uCode images from disk file.
4936 * Copy into buffers for card to fetch via bus-mastering
4938 static int iwl3945_read_ucode(struct iwl_priv
*priv
)
4940 struct iwl_ucode
*ucode
;
4941 int ret
= -EINVAL
, index
;
4942 const struct firmware
*ucode_raw
;
4943 /* firmware file name contains uCode/driver compatibility version */
4944 const char *name_pre
= priv
->cfg
->fw_name_pre
;
4945 const unsigned int api_max
= priv
->cfg
->ucode_api_max
;
4946 const unsigned int api_min
= priv
->cfg
->ucode_api_min
;
4950 u32 api_ver
, inst_size
, data_size
, init_size
, init_data_size
, boot_size
;
4952 /* Ask kernel firmware_class module to get the boot firmware off disk.
4953 * request_firmware() is synchronous, file is in memory on return. */
4954 for (index
= api_max
; index
>= api_min
; index
--) {
4955 sprintf(buf
, "%s%u%s", name_pre
, index
, ".ucode");
4956 ret
= request_firmware(&ucode_raw
, buf
, &priv
->pci_dev
->dev
);
4958 IWL_ERR(priv
, "%s firmware file req failed: %d\n",
4965 if (index
< api_max
)
4966 IWL_ERR(priv
, "Loaded firmware %s, "
4967 "which is deprecated. "
4968 " Please use API v%u instead.\n",
4970 IWL_DEBUG_INFO("Got firmware '%s' file (%zd bytes) from disk\n",
4971 buf
, ucode_raw
->size
);
4979 /* Make sure that we got at least our header! */
4980 if (ucode_raw
->size
< sizeof(*ucode
)) {
4981 IWL_ERR(priv
, "File size way too small!\n");
4986 /* Data from ucode file: header followed by uCode images */
4987 ucode
= (void *)ucode_raw
->data
;
4989 priv
->ucode_ver
= le32_to_cpu(ucode
->ver
);
4990 api_ver
= IWL_UCODE_API(priv
->ucode_ver
);
4991 inst_size
= le32_to_cpu(ucode
->inst_size
);
4992 data_size
= le32_to_cpu(ucode
->data_size
);
4993 init_size
= le32_to_cpu(ucode
->init_size
);
4994 init_data_size
= le32_to_cpu(ucode
->init_data_size
);
4995 boot_size
= le32_to_cpu(ucode
->boot_size
);
4997 /* api_ver should match the api version forming part of the
4998 * firmware filename ... but we don't check for that and only rely
4999 * on the API version read from firware header from here on forward */
5001 if (api_ver
< api_min
|| api_ver
> api_max
) {
5002 IWL_ERR(priv
, "Driver unable to support your firmware API. "
5003 "Driver supports v%u, firmware is v%u.\n",
5005 priv
->ucode_ver
= 0;
5009 if (api_ver
!= api_max
)
5010 IWL_ERR(priv
, "Firmware has old API version. Expected %u, "
5011 "got %u. New firmware can be obtained "
5012 "from http://www.intellinuxwireless.org.\n",
5015 IWL_INFO(priv
, "loaded firmware version %u.%u.%u.%u\n",
5016 IWL_UCODE_MAJOR(priv
->ucode_ver
),
5017 IWL_UCODE_MINOR(priv
->ucode_ver
),
5018 IWL_UCODE_API(priv
->ucode_ver
),
5019 IWL_UCODE_SERIAL(priv
->ucode_ver
));
5021 IWL_DEBUG_INFO("f/w package hdr ucode version raw = 0x%x\n",
5023 IWL_DEBUG_INFO("f/w package hdr runtime inst size = %u\n", inst_size
);
5024 IWL_DEBUG_INFO("f/w package hdr runtime data size = %u\n", data_size
);
5025 IWL_DEBUG_INFO("f/w package hdr init inst size = %u\n", init_size
);
5026 IWL_DEBUG_INFO("f/w package hdr init data size = %u\n", init_data_size
);
5027 IWL_DEBUG_INFO("f/w package hdr boot inst size = %u\n", boot_size
);
5030 /* Verify size of file vs. image size info in file's header */
5031 if (ucode_raw
->size
< sizeof(*ucode
) +
5032 inst_size
+ data_size
+ init_size
+
5033 init_data_size
+ boot_size
) {
5035 IWL_DEBUG_INFO("uCode file size %d too small\n",
5036 (int)ucode_raw
->size
);
5041 /* Verify that uCode images will fit in card's SRAM */
5042 if (inst_size
> IWL39_MAX_INST_SIZE
) {
5043 IWL_DEBUG_INFO("uCode instr len %d too large to fit in\n",
5049 if (data_size
> IWL39_MAX_DATA_SIZE
) {
5050 IWL_DEBUG_INFO("uCode data len %d too large to fit in\n",
5055 if (init_size
> IWL39_MAX_INST_SIZE
) {
5056 IWL_DEBUG_INFO("uCode init instr len %d too large to fit in\n",
5061 if (init_data_size
> IWL39_MAX_DATA_SIZE
) {
5062 IWL_DEBUG_INFO("uCode init data len %d too large to fit in\n",
5067 if (boot_size
> IWL39_MAX_BSM_SIZE
) {
5068 IWL_DEBUG_INFO("uCode boot instr len %d too large to fit in\n",
5074 /* Allocate ucode buffers for card's bus-master loading ... */
5076 /* Runtime instructions and 2 copies of data:
5077 * 1) unmodified from disk
5078 * 2) backup cache for save/restore during power-downs */
5079 priv
->ucode_code
.len
= inst_size
;
5080 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_code
);
5082 priv
->ucode_data
.len
= data_size
;
5083 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_data
);
5085 priv
->ucode_data_backup
.len
= data_size
;
5086 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_data_backup
);
5088 if (!priv
->ucode_code
.v_addr
|| !priv
->ucode_data
.v_addr
||
5089 !priv
->ucode_data_backup
.v_addr
)
5092 /* Initialization instructions and data */
5093 if (init_size
&& init_data_size
) {
5094 priv
->ucode_init
.len
= init_size
;
5095 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_init
);
5097 priv
->ucode_init_data
.len
= init_data_size
;
5098 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_init_data
);
5100 if (!priv
->ucode_init
.v_addr
|| !priv
->ucode_init_data
.v_addr
)
5104 /* Bootstrap (instructions only, no data) */
5106 priv
->ucode_boot
.len
= boot_size
;
5107 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_boot
);
5109 if (!priv
->ucode_boot
.v_addr
)
5113 /* Copy images into buffers for card's bus-master reads ... */
5115 /* Runtime instructions (first block of data in file) */
5116 src
= &ucode
->data
[0];
5117 len
= priv
->ucode_code
.len
;
5118 IWL_DEBUG_INFO("Copying (but not loading) uCode instr len %Zd\n", len
);
5119 memcpy(priv
->ucode_code
.v_addr
, src
, len
);
5120 IWL_DEBUG_INFO("uCode instr buf vaddr = 0x%p, paddr = 0x%08x\n",
5121 priv
->ucode_code
.v_addr
, (u32
)priv
->ucode_code
.p_addr
);
5123 /* Runtime data (2nd block)
5124 * NOTE: Copy into backup buffer will be done in iwl3945_up() */
5125 src
= &ucode
->data
[inst_size
];
5126 len
= priv
->ucode_data
.len
;
5127 IWL_DEBUG_INFO("Copying (but not loading) uCode data len %Zd\n", len
);
5128 memcpy(priv
->ucode_data
.v_addr
, src
, len
);
5129 memcpy(priv
->ucode_data_backup
.v_addr
, src
, len
);
5131 /* Initialization instructions (3rd block) */
5133 src
= &ucode
->data
[inst_size
+ data_size
];
5134 len
= priv
->ucode_init
.len
;
5135 IWL_DEBUG_INFO("Copying (but not loading) init instr len %Zd\n",
5137 memcpy(priv
->ucode_init
.v_addr
, src
, len
);
5140 /* Initialization data (4th block) */
5141 if (init_data_size
) {
5142 src
= &ucode
->data
[inst_size
+ data_size
+ init_size
];
5143 len
= priv
->ucode_init_data
.len
;
5144 IWL_DEBUG_INFO("Copying (but not loading) init data len %d\n",
5146 memcpy(priv
->ucode_init_data
.v_addr
, src
, len
);
5149 /* Bootstrap instructions (5th block) */
5150 src
= &ucode
->data
[inst_size
+ data_size
+ init_size
+ init_data_size
];
5151 len
= priv
->ucode_boot
.len
;
5152 IWL_DEBUG_INFO("Copying (but not loading) boot instr len %d\n",
5154 memcpy(priv
->ucode_boot
.v_addr
, src
, len
);
5156 /* We have our copies now, allow OS release its copies */
5157 release_firmware(ucode_raw
);
5161 IWL_ERR(priv
, "failed to allocate pci memory\n");
5163 iwl3945_dealloc_ucode_pci(priv
);
5166 release_firmware(ucode_raw
);
5174 * iwl3945_set_ucode_ptrs - Set uCode address location
5176 * Tell initialization uCode where to find runtime uCode.
5178 * BSM registers initially contain pointers to initialization uCode.
5179 * We need to replace them to load runtime uCode inst and data,
5180 * and to save runtime data when powering down.
5182 static int iwl3945_set_ucode_ptrs(struct iwl_priv
*priv
)
5187 unsigned long flags
;
5189 /* bits 31:0 for 3945 */
5190 pinst
= priv
->ucode_code
.p_addr
;
5191 pdata
= priv
->ucode_data_backup
.p_addr
;
5193 spin_lock_irqsave(&priv
->lock
, flags
);
5194 rc
= iwl_grab_nic_access(priv
);
5196 spin_unlock_irqrestore(&priv
->lock
, flags
);
5200 /* Tell bootstrap uCode where to find image to load */
5201 iwl_write_prph(priv
, BSM_DRAM_INST_PTR_REG
, pinst
);
5202 iwl_write_prph(priv
, BSM_DRAM_DATA_PTR_REG
, pdata
);
5203 iwl_write_prph(priv
, BSM_DRAM_DATA_BYTECOUNT_REG
,
5204 priv
->ucode_data
.len
);
5206 /* Inst byte count must be last to set up, bit 31 signals uCode
5207 * that all new ptr/size info is in place */
5208 iwl_write_prph(priv
, BSM_DRAM_INST_BYTECOUNT_REG
,
5209 priv
->ucode_code
.len
| BSM_DRAM_INST_LOAD
);
5211 iwl_release_nic_access(priv
);
5213 spin_unlock_irqrestore(&priv
->lock
, flags
);
5215 IWL_DEBUG_INFO("Runtime uCode pointers are set.\n");
5221 * iwl3945_init_alive_start - Called after REPLY_ALIVE notification received
5223 * Called after REPLY_ALIVE notification received from "initialize" uCode.
5225 * Tell "initialize" uCode to go ahead and load the runtime uCode.
5227 static void iwl3945_init_alive_start(struct iwl_priv
*priv
)
5229 /* Check alive response for "valid" sign from uCode */
5230 if (priv
->card_alive_init
.is_valid
!= UCODE_VALID_OK
) {
5231 /* We had an error bringing up the hardware, so take it
5232 * all the way back down so we can try again */
5233 IWL_DEBUG_INFO("Initialize Alive failed.\n");
5237 /* Bootstrap uCode has loaded initialize uCode ... verify inst image.
5238 * This is a paranoid check, because we would not have gotten the
5239 * "initialize" alive if code weren't properly loaded. */
5240 if (iwl3945_verify_ucode(priv
)) {
5241 /* Runtime instruction load was bad;
5242 * take it all the way back down so we can try again */
5243 IWL_DEBUG_INFO("Bad \"initialize\" uCode load.\n");
5247 /* Send pointers to protocol/runtime uCode image ... init code will
5248 * load and launch runtime uCode, which will send us another "Alive"
5250 IWL_DEBUG_INFO("Initialization Alive received.\n");
5251 if (iwl3945_set_ucode_ptrs(priv
)) {
5252 /* Runtime instruction load won't happen;
5253 * take it all the way back down so we can try again */
5254 IWL_DEBUG_INFO("Couldn't set up uCode pointers.\n");
5260 queue_work(priv
->workqueue
, &priv
->restart
);
5265 static int iwl3945_mac_beacon_update(struct ieee80211_hw
*hw
,
5266 struct sk_buff
*skb
);
5269 * iwl3945_alive_start - called after REPLY_ALIVE notification received
5270 * from protocol/runtime uCode (initialization uCode's
5271 * Alive gets handled by iwl3945_init_alive_start()).
5273 static void iwl3945_alive_start(struct iwl_priv
*priv
)
5276 int thermal_spin
= 0;
5279 IWL_DEBUG_INFO("Runtime Alive received.\n");
5281 if (priv
->card_alive
.is_valid
!= UCODE_VALID_OK
) {
5282 /* We had an error bringing up the hardware, so take it
5283 * all the way back down so we can try again */
5284 IWL_DEBUG_INFO("Alive failed.\n");
5288 /* Initialize uCode has loaded Runtime uCode ... verify inst image.
5289 * This is a paranoid check, because we would not have gotten the
5290 * "runtime" alive if code weren't properly loaded. */
5291 if (iwl3945_verify_ucode(priv
)) {
5292 /* Runtime instruction load was bad;
5293 * take it all the way back down so we can try again */
5294 IWL_DEBUG_INFO("Bad runtime uCode load.\n");
5298 iwl3945_clear_stations_table(priv
);
5300 rc
= iwl_grab_nic_access(priv
);
5302 IWL_WARN(priv
, "Can not read RFKILL status from adapter\n");
5306 rfkill
= iwl_read_prph(priv
, APMG_RFKILL_REG
);
5307 IWL_DEBUG_INFO("RFKILL status: 0x%x\n", rfkill
);
5308 iwl_release_nic_access(priv
);
5311 clear_bit(STATUS_RF_KILL_HW
, &priv
->status
);
5312 /* if RFKILL is not on, then wait for thermal
5313 * sensor in adapter to kick in */
5314 while (iwl3945_hw_get_temperature(priv
) == 0) {
5320 IWL_DEBUG_INFO("Thermal calibration took %dus\n",
5323 set_bit(STATUS_RF_KILL_HW
, &priv
->status
);
5325 /* After the ALIVE response, we can send commands to 3945 uCode */
5326 set_bit(STATUS_ALIVE
, &priv
->status
);
5328 /* Clear out the uCode error bit if it is set */
5329 clear_bit(STATUS_FW_ERROR
, &priv
->status
);
5331 if (iwl_is_rfkill(priv
))
5334 ieee80211_wake_queues(priv
->hw
);
5336 priv
->active_rate
= priv
->rates_mask
;
5337 priv
->active_rate_basic
= priv
->rates_mask
& IWL_BASIC_RATES_MASK
;
5339 iwl3945_send_power_mode(priv
, IWL_POWER_LEVEL(priv
->power_mode
));
5341 if (iwl3945_is_associated(priv
)) {
5342 struct iwl3945_rxon_cmd
*active_rxon
=
5343 (struct iwl3945_rxon_cmd
*)(&priv
->active39_rxon
);
5345 memcpy(&priv
->staging39_rxon
, &priv
->active39_rxon
,
5346 sizeof(priv
->staging39_rxon
));
5347 active_rxon
->filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
5349 /* Initialize our rx_config data */
5350 iwl3945_connection_init_rx_config(priv
, priv
->iw_mode
);
5351 memcpy(priv
->staging39_rxon
.node_addr
, priv
->mac_addr
, ETH_ALEN
);
5354 /* Configure Bluetooth device coexistence support */
5355 iwl3945_send_bt_config(priv
);
5357 /* Configure the adapter for unassociated operation */
5358 iwl3945_commit_rxon(priv
);
5360 iwl3945_reg_txpower_periodic(priv
);
5362 iwl3945_led_register(priv
);
5364 IWL_DEBUG_INFO("ALIVE processing complete.\n");
5365 set_bit(STATUS_READY
, &priv
->status
);
5366 wake_up_interruptible(&priv
->wait_command_queue
);
5368 if (priv
->error_recovering
)
5369 iwl3945_error_recovery(priv
);
5371 /* reassociate for ADHOC mode */
5372 if (priv
->vif
&& (priv
->iw_mode
== NL80211_IFTYPE_ADHOC
)) {
5373 struct sk_buff
*beacon
= ieee80211_beacon_get(priv
->hw
,
5376 iwl3945_mac_beacon_update(priv
->hw
, beacon
);
5382 queue_work(priv
->workqueue
, &priv
->restart
);
5385 static void iwl3945_cancel_deferred_work(struct iwl_priv
*priv
);
5387 static void __iwl3945_down(struct iwl_priv
*priv
)
5389 unsigned long flags
;
5390 int exit_pending
= test_bit(STATUS_EXIT_PENDING
, &priv
->status
);
5391 struct ieee80211_conf
*conf
= NULL
;
5393 IWL_DEBUG_INFO(DRV_NAME
" is going down\n");
5395 conf
= ieee80211_get_hw_conf(priv
->hw
);
5398 set_bit(STATUS_EXIT_PENDING
, &priv
->status
);
5400 iwl3945_led_unregister(priv
);
5401 iwl3945_clear_stations_table(priv
);
5403 /* Unblock any waiting calls */
5404 wake_up_interruptible_all(&priv
->wait_command_queue
);
5406 /* Wipe out the EXIT_PENDING status bit if we are not actually
5407 * exiting the module */
5409 clear_bit(STATUS_EXIT_PENDING
, &priv
->status
);
5411 /* stop and reset the on-board processor */
5412 iwl_write32(priv
, CSR_RESET
, CSR_RESET_REG_FLAG_NEVO_RESET
);
5414 /* tell the device to stop sending interrupts */
5415 spin_lock_irqsave(&priv
->lock
, flags
);
5416 iwl3945_disable_interrupts(priv
);
5417 spin_unlock_irqrestore(&priv
->lock
, flags
);
5418 iwl_synchronize_irq(priv
);
5420 if (priv
->mac80211_registered
)
5421 ieee80211_stop_queues(priv
->hw
);
5423 /* If we have not previously called iwl3945_init() then
5424 * clear all bits but the RF Kill and SUSPEND bits and return */
5425 if (!iwl_is_init(priv
)) {
5426 priv
->status
= test_bit(STATUS_RF_KILL_HW
, &priv
->status
) <<
5428 test_bit(STATUS_RF_KILL_SW
, &priv
->status
) <<
5430 test_bit(STATUS_GEO_CONFIGURED
, &priv
->status
) <<
5431 STATUS_GEO_CONFIGURED
|
5432 test_bit(STATUS_IN_SUSPEND
, &priv
->status
) <<
5434 test_bit(STATUS_EXIT_PENDING
, &priv
->status
) <<
5435 STATUS_EXIT_PENDING
;
5439 /* ...otherwise clear out all the status bits but the RF Kill and
5440 * SUSPEND bits and continue taking the NIC down. */
5441 priv
->status
&= test_bit(STATUS_RF_KILL_HW
, &priv
->status
) <<
5443 test_bit(STATUS_RF_KILL_SW
, &priv
->status
) <<
5445 test_bit(STATUS_GEO_CONFIGURED
, &priv
->status
) <<
5446 STATUS_GEO_CONFIGURED
|
5447 test_bit(STATUS_IN_SUSPEND
, &priv
->status
) <<
5449 test_bit(STATUS_FW_ERROR
, &priv
->status
) <<
5451 test_bit(STATUS_EXIT_PENDING
, &priv
->status
) <<
5452 STATUS_EXIT_PENDING
;
5454 spin_lock_irqsave(&priv
->lock
, flags
);
5455 iwl_clear_bit(priv
, CSR_GP_CNTRL
, CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ
);
5456 spin_unlock_irqrestore(&priv
->lock
, flags
);
5458 iwl3945_hw_txq_ctx_stop(priv
);
5459 iwl3945_hw_rxq_stop(priv
);
5461 spin_lock_irqsave(&priv
->lock
, flags
);
5462 if (!iwl_grab_nic_access(priv
)) {
5463 iwl_write_prph(priv
, APMG_CLK_DIS_REG
,
5464 APMG_CLK_VAL_DMA_CLK_RQT
);
5465 iwl_release_nic_access(priv
);
5467 spin_unlock_irqrestore(&priv
->lock
, flags
);
5471 priv
->cfg
->ops
->lib
->apm_ops
.reset(priv
);
5473 memset(&priv
->card_alive
, 0, sizeof(struct iwl_alive_resp
));
5475 if (priv
->ibss_beacon
)
5476 dev_kfree_skb(priv
->ibss_beacon
);
5477 priv
->ibss_beacon
= NULL
;
5479 /* clear out any free frames */
5480 iwl3945_clear_free_frames(priv
);
5483 static void iwl3945_down(struct iwl_priv
*priv
)
5485 mutex_lock(&priv
->mutex
);
5486 __iwl3945_down(priv
);
5487 mutex_unlock(&priv
->mutex
);
5489 iwl3945_cancel_deferred_work(priv
);
5492 #define MAX_HW_RESTARTS 5
5494 static int __iwl3945_up(struct iwl_priv
*priv
)
5498 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
)) {
5499 IWL_WARN(priv
, "Exit pending; will not bring the NIC up\n");
5503 if (test_bit(STATUS_RF_KILL_SW
, &priv
->status
)) {
5504 IWL_WARN(priv
, "Radio disabled by SW RF kill (module "
5509 if (!priv
->ucode_data_backup
.v_addr
|| !priv
->ucode_data
.v_addr
) {
5510 IWL_ERR(priv
, "ucode not available for device bring up\n");
5514 /* If platform's RF_KILL switch is NOT set to KILL */
5515 if (iwl_read32(priv
, CSR_GP_CNTRL
) &
5516 CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW
)
5517 clear_bit(STATUS_RF_KILL_HW
, &priv
->status
);
5519 set_bit(STATUS_RF_KILL_HW
, &priv
->status
);
5520 if (!test_bit(STATUS_IN_SUSPEND
, &priv
->status
)) {
5521 IWL_WARN(priv
, "Radio disabled by HW RF Kill switch\n");
5526 iwl_write32(priv
, CSR_INT
, 0xFFFFFFFF);
5528 rc
= iwl3945_hw_nic_init(priv
);
5530 IWL_ERR(priv
, "Unable to int nic\n");
5534 /* make sure rfkill handshake bits are cleared */
5535 iwl_write32(priv
, CSR_UCODE_DRV_GP1_CLR
, CSR_UCODE_SW_BIT_RFKILL
);
5536 iwl_write32(priv
, CSR_UCODE_DRV_GP1_CLR
,
5537 CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED
);
5539 /* clear (again), then enable host interrupts */
5540 iwl_write32(priv
, CSR_INT
, 0xFFFFFFFF);
5541 iwl3945_enable_interrupts(priv
);
5543 /* really make sure rfkill handshake bits are cleared */
5544 iwl_write32(priv
, CSR_UCODE_DRV_GP1_CLR
, CSR_UCODE_SW_BIT_RFKILL
);
5545 iwl_write32(priv
, CSR_UCODE_DRV_GP1_CLR
, CSR_UCODE_SW_BIT_RFKILL
);
5547 /* Copy original ucode data image from disk into backup cache.
5548 * This will be used to initialize the on-board processor's
5549 * data SRAM for a clean start when the runtime program first loads. */
5550 memcpy(priv
->ucode_data_backup
.v_addr
, priv
->ucode_data
.v_addr
,
5551 priv
->ucode_data
.len
);
5553 /* We return success when we resume from suspend and rf_kill is on. */
5554 if (test_bit(STATUS_RF_KILL_HW
, &priv
->status
))
5557 for (i
= 0; i
< MAX_HW_RESTARTS
; i
++) {
5559 iwl3945_clear_stations_table(priv
);
5561 /* load bootstrap state machine,
5562 * load bootstrap program into processor's memory,
5563 * prepare to load the "initialize" uCode */
5564 priv
->cfg
->ops
->lib
->load_ucode(priv
);
5568 "Unable to set up bootstrap uCode: %d\n", rc
);
5572 /* start card; "initialize" will load runtime ucode */
5573 iwl3945_nic_start(priv
);
5575 IWL_DEBUG_INFO(DRV_NAME
" is coming up\n");
5580 set_bit(STATUS_EXIT_PENDING
, &priv
->status
);
5581 __iwl3945_down(priv
);
5582 clear_bit(STATUS_EXIT_PENDING
, &priv
->status
);
5584 /* tried to restart and config the device for as long as our
5585 * patience could withstand */
5586 IWL_ERR(priv
, "Unable to initialize device after %d attempts.\n", i
);
5591 /*****************************************************************************
5593 * Workqueue callbacks
5595 *****************************************************************************/
5597 static void iwl3945_bg_init_alive_start(struct work_struct
*data
)
5599 struct iwl_priv
*priv
=
5600 container_of(data
, struct iwl_priv
, init_alive_start
.work
);
5602 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
5605 mutex_lock(&priv
->mutex
);
5606 iwl3945_init_alive_start(priv
);
5607 mutex_unlock(&priv
->mutex
);
5610 static void iwl3945_bg_alive_start(struct work_struct
*data
)
5612 struct iwl_priv
*priv
=
5613 container_of(data
, struct iwl_priv
, alive_start
.work
);
5615 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
5618 mutex_lock(&priv
->mutex
);
5619 iwl3945_alive_start(priv
);
5620 mutex_unlock(&priv
->mutex
);
5623 static void iwl3945_bg_rf_kill(struct work_struct
*work
)
5625 struct iwl_priv
*priv
= container_of(work
, struct iwl_priv
, rf_kill
);
5627 wake_up_interruptible(&priv
->wait_command_queue
);
5629 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
5632 mutex_lock(&priv
->mutex
);
5634 if (!iwl_is_rfkill(priv
)) {
5635 IWL_DEBUG(IWL_DL_INFO
| IWL_DL_RF_KILL
,
5636 "HW and/or SW RF Kill no longer active, restarting "
5638 if (!test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
5639 queue_work(priv
->workqueue
, &priv
->restart
);
5642 if (!test_bit(STATUS_RF_KILL_HW
, &priv
->status
))
5643 IWL_DEBUG_RF_KILL("Can not turn radio back on - "
5644 "disabled by SW switch\n");
5646 IWL_WARN(priv
, "Radio Frequency Kill Switch is On:\n"
5647 "Kill switch must be turned off for "
5648 "wireless networking to work.\n");
5651 mutex_unlock(&priv
->mutex
);
5652 iwl3945_rfkill_set_hw_state(priv
);
5655 #define IWL_SCAN_CHECK_WATCHDOG (7 * HZ)
5657 static void iwl3945_bg_scan_check(struct work_struct
*data
)
5659 struct iwl_priv
*priv
=
5660 container_of(data
, struct iwl_priv
, scan_check
.work
);
5662 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
5665 mutex_lock(&priv
->mutex
);
5666 if (test_bit(STATUS_SCANNING
, &priv
->status
) ||
5667 test_bit(STATUS_SCAN_ABORTING
, &priv
->status
)) {
5668 IWL_DEBUG(IWL_DL_INFO
| IWL_DL_SCAN
,
5669 "Scan completion watchdog resetting adapter (%dms)\n",
5670 jiffies_to_msecs(IWL_SCAN_CHECK_WATCHDOG
));
5672 if (!test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
5673 iwl3945_send_scan_abort(priv
);
5675 mutex_unlock(&priv
->mutex
);
5678 static void iwl3945_bg_request_scan(struct work_struct
*data
)
5680 struct iwl_priv
*priv
=
5681 container_of(data
, struct iwl_priv
, request_scan
);
5682 struct iwl_host_cmd cmd
= {
5683 .id
= REPLY_SCAN_CMD
,
5684 .len
= sizeof(struct iwl3945_scan_cmd
),
5685 .meta
.flags
= CMD_SIZE_HUGE
,
5688 struct iwl3945_scan_cmd
*scan
;
5689 struct ieee80211_conf
*conf
= NULL
;
5691 enum ieee80211_band band
;
5692 DECLARE_SSID_BUF(ssid
);
5694 conf
= ieee80211_get_hw_conf(priv
->hw
);
5696 mutex_lock(&priv
->mutex
);
5698 if (!iwl_is_ready(priv
)) {
5699 IWL_WARN(priv
, "request scan called when driver not ready.\n");
5703 /* Make sure the scan wasn't canceled before this queued work
5704 * was given the chance to run... */
5705 if (!test_bit(STATUS_SCANNING
, &priv
->status
))
5708 /* This should never be called or scheduled if there is currently
5709 * a scan active in the hardware. */
5710 if (test_bit(STATUS_SCAN_HW
, &priv
->status
)) {
5711 IWL_DEBUG_INFO("Multiple concurrent scan requests in parallel. "
5712 "Ignoring second request.\n");
5717 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
)) {
5718 IWL_DEBUG_SCAN("Aborting scan due to device shutdown\n");
5722 if (test_bit(STATUS_SCAN_ABORTING
, &priv
->status
)) {
5723 IWL_DEBUG_HC("Scan request while abort pending. Queuing.\n");
5727 if (iwl_is_rfkill(priv
)) {
5728 IWL_DEBUG_HC("Aborting scan due to RF Kill activation\n");
5732 if (!test_bit(STATUS_READY
, &priv
->status
)) {
5733 IWL_DEBUG_HC("Scan request while uninitialized. Queuing.\n");
5737 if (!priv
->scan_bands
) {
5738 IWL_DEBUG_HC("Aborting scan due to no requested bands\n");
5742 if (!priv
->scan39
) {
5743 priv
->scan39
= kmalloc(sizeof(struct iwl3945_scan_cmd
) +
5744 IWL_MAX_SCAN_SIZE
, GFP_KERNEL
);
5745 if (!priv
->scan39
) {
5750 scan
= priv
->scan39
;
5751 memset(scan
, 0, sizeof(struct iwl3945_scan_cmd
) + IWL_MAX_SCAN_SIZE
);
5753 scan
->quiet_plcp_th
= IWL_PLCP_QUIET_THRESH
;
5754 scan
->quiet_time
= IWL_ACTIVE_QUIET_TIME
;
5756 if (iwl3945_is_associated(priv
)) {
5759 u32 suspend_time
= 100;
5760 u32 scan_suspend_time
= 100;
5761 unsigned long flags
;
5763 IWL_DEBUG_INFO("Scanning while associated...\n");
5765 spin_lock_irqsave(&priv
->lock
, flags
);
5766 interval
= priv
->beacon_int
;
5767 spin_unlock_irqrestore(&priv
->lock
, flags
);
5769 scan
->suspend_time
= 0;
5770 scan
->max_out_time
= cpu_to_le32(200 * 1024);
5772 interval
= suspend_time
;
5774 * suspend time format:
5775 * 0-19: beacon interval in usec (time before exec.)
5777 * 24-31: number of beacons (suspend between channels)
5780 extra
= (suspend_time
/ interval
) << 24;
5781 scan_suspend_time
= 0xFF0FFFFF &
5782 (extra
| ((suspend_time
% interval
) * 1024));
5784 scan
->suspend_time
= cpu_to_le32(scan_suspend_time
);
5785 IWL_DEBUG_SCAN("suspend_time 0x%X beacon interval %d\n",
5786 scan_suspend_time
, interval
);
5789 /* We should add the ability for user to lock to PASSIVE ONLY */
5790 if (priv
->one_direct_scan
) {
5792 ("Kicking off one direct scan for '%s'\n",
5793 print_ssid(ssid
, priv
->direct_ssid
,
5794 priv
->direct_ssid_len
));
5795 scan
->direct_scan
[0].id
= WLAN_EID_SSID
;
5796 scan
->direct_scan
[0].len
= priv
->direct_ssid_len
;
5797 memcpy(scan
->direct_scan
[0].ssid
,
5798 priv
->direct_ssid
, priv
->direct_ssid_len
);
5801 IWL_DEBUG_SCAN("Kicking off one indirect scan.\n");
5803 /* We don't build a direct scan probe request; the uCode will do
5804 * that based on the direct_mask added to each channel entry */
5805 scan
->tx_cmd
.len
= cpu_to_le16(
5806 iwl3945_fill_probe_req(priv
, (struct ieee80211_mgmt
*)scan
->data
,
5807 IWL_MAX_SCAN_SIZE
- sizeof(*scan
)));
5808 scan
->tx_cmd
.tx_flags
= TX_CMD_FLG_SEQ_CTL_MSK
;
5809 scan
->tx_cmd
.sta_id
= priv
->hw_params
.bcast_sta_id
;
5810 scan
->tx_cmd
.stop_time
.life_time
= TX_CMD_LIFE_TIME_INFINITE
;
5812 /* flags + rate selection */
5814 if (priv
->scan_bands
& BIT(IEEE80211_BAND_2GHZ
)) {
5815 scan
->flags
= RXON_FLG_BAND_24G_MSK
| RXON_FLG_AUTO_DETECT_MSK
;
5816 scan
->tx_cmd
.rate
= IWL_RATE_1M_PLCP
;
5817 scan
->good_CRC_th
= 0;
5818 band
= IEEE80211_BAND_2GHZ
;
5819 } else if (priv
->scan_bands
& BIT(IEEE80211_BAND_5GHZ
)) {
5820 scan
->tx_cmd
.rate
= IWL_RATE_6M_PLCP
;
5821 scan
->good_CRC_th
= IWL_GOOD_CRC_TH
;
5822 band
= IEEE80211_BAND_5GHZ
;
5824 IWL_WARN(priv
, "Invalid scan band count\n");
5828 /* select Rx antennas */
5829 scan
->flags
|= iwl3945_get_antenna_flags(priv
);
5831 if (priv
->iw_mode
== NL80211_IFTYPE_MONITOR
)
5832 scan
->filter_flags
= RXON_FILTER_PROMISC_MSK
;
5834 scan
->channel_count
=
5835 iwl3945_get_channels_for_scan(priv
, band
, 1, /* active */
5837 (void *)&scan
->data
[le16_to_cpu(scan
->tx_cmd
.len
)]);
5839 if (scan
->channel_count
== 0) {
5840 IWL_DEBUG_SCAN("channel count %d\n", scan
->channel_count
);
5844 cmd
.len
+= le16_to_cpu(scan
->tx_cmd
.len
) +
5845 scan
->channel_count
* sizeof(struct iwl3945_scan_channel
);
5847 scan
->len
= cpu_to_le16(cmd
.len
);
5849 set_bit(STATUS_SCAN_HW
, &priv
->status
);
5850 rc
= iwl3945_send_cmd_sync(priv
, &cmd
);
5854 queue_delayed_work(priv
->workqueue
, &priv
->scan_check
,
5855 IWL_SCAN_CHECK_WATCHDOG
);
5857 mutex_unlock(&priv
->mutex
);
5861 /* can not perform scan make sure we clear scanning
5862 * bits from status so next scan request can be performed.
5863 * if we dont clear scanning status bit here all next scan
5866 clear_bit(STATUS_SCAN_HW
, &priv
->status
);
5867 clear_bit(STATUS_SCANNING
, &priv
->status
);
5869 /* inform mac80211 scan aborted */
5870 queue_work(priv
->workqueue
, &priv
->scan_completed
);
5871 mutex_unlock(&priv
->mutex
);
5874 static void iwl3945_bg_up(struct work_struct
*data
)
5876 struct iwl_priv
*priv
= container_of(data
, struct iwl_priv
, up
);
5878 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
5881 mutex_lock(&priv
->mutex
);
5883 mutex_unlock(&priv
->mutex
);
5884 iwl3945_rfkill_set_hw_state(priv
);
5887 static void iwl3945_bg_restart(struct work_struct
*data
)
5889 struct iwl_priv
*priv
= container_of(data
, struct iwl_priv
, restart
);
5891 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
5895 queue_work(priv
->workqueue
, &priv
->up
);
5898 static void iwl3945_bg_rx_replenish(struct work_struct
*data
)
5900 struct iwl_priv
*priv
=
5901 container_of(data
, struct iwl_priv
, rx_replenish
);
5903 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
5906 mutex_lock(&priv
->mutex
);
5907 iwl3945_rx_replenish(priv
);
5908 mutex_unlock(&priv
->mutex
);
5911 #define IWL_DELAY_NEXT_SCAN (HZ*2)
5913 static void iwl3945_post_associate(struct iwl_priv
*priv
)
5916 struct ieee80211_conf
*conf
= NULL
;
5918 if (priv
->iw_mode
== NL80211_IFTYPE_AP
) {
5919 IWL_ERR(priv
, "%s Should not be called in AP mode\n", __func__
);
5924 IWL_DEBUG_ASSOC("Associated as %d to: %pM\n",
5925 priv
->assoc_id
, priv
->active39_rxon
.bssid_addr
);
5927 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
5930 if (!priv
->vif
|| !priv
->is_open
)
5933 iwl3945_scan_cancel_timeout(priv
, 200);
5935 conf
= ieee80211_get_hw_conf(priv
->hw
);
5937 priv
->staging39_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
5938 iwl3945_commit_rxon(priv
);
5940 memset(&priv
->rxon_timing
, 0, sizeof(struct iwl_rxon_time_cmd
));
5941 iwl3945_setup_rxon_timing(priv
);
5942 rc
= iwl3945_send_cmd_pdu(priv
, REPLY_RXON_TIMING
,
5943 sizeof(priv
->rxon_timing
), &priv
->rxon_timing
);
5945 IWL_WARN(priv
, "REPLY_RXON_TIMING failed - "
5946 "Attempting to continue.\n");
5948 priv
->staging39_rxon
.filter_flags
|= RXON_FILTER_ASSOC_MSK
;
5950 priv
->staging39_rxon
.assoc_id
= cpu_to_le16(priv
->assoc_id
);
5952 IWL_DEBUG_ASSOC("assoc id %d beacon interval %d\n",
5953 priv
->assoc_id
, priv
->beacon_int
);
5955 if (priv
->assoc_capability
& WLAN_CAPABILITY_SHORT_PREAMBLE
)
5956 priv
->staging39_rxon
.flags
|= RXON_FLG_SHORT_PREAMBLE_MSK
;
5958 priv
->staging39_rxon
.flags
&= ~RXON_FLG_SHORT_PREAMBLE_MSK
;
5960 if (priv
->staging39_rxon
.flags
& RXON_FLG_BAND_24G_MSK
) {
5961 if (priv
->assoc_capability
& WLAN_CAPABILITY_SHORT_SLOT_TIME
)
5962 priv
->staging39_rxon
.flags
|= RXON_FLG_SHORT_SLOT_MSK
;
5964 priv
->staging39_rxon
.flags
&= ~RXON_FLG_SHORT_SLOT_MSK
;
5966 if (priv
->iw_mode
== NL80211_IFTYPE_ADHOC
)
5967 priv
->staging39_rxon
.flags
&= ~RXON_FLG_SHORT_SLOT_MSK
;
5971 iwl3945_commit_rxon(priv
);
5973 switch (priv
->iw_mode
) {
5974 case NL80211_IFTYPE_STATION
:
5975 iwl3945_rate_scale_init(priv
->hw
, IWL_AP_ID
);
5978 case NL80211_IFTYPE_ADHOC
:
5981 iwl3945_add_station(priv
, priv
->bssid
, 0, 0);
5982 iwl3945_sync_sta(priv
, IWL_STA_ID
,
5983 (priv
->band
== IEEE80211_BAND_5GHZ
) ?
5984 IWL_RATE_6M_PLCP
: IWL_RATE_1M_PLCP
,
5986 iwl3945_rate_scale_init(priv
->hw
, IWL_STA_ID
);
5987 iwl3945_send_beacon_cmd(priv
);
5992 IWL_ERR(priv
, "%s Should not be called in %d mode\n",
5993 __func__
, priv
->iw_mode
);
5997 iwl3945_activate_qos(priv
, 0);
5999 /* we have just associated, don't start scan too early */
6000 priv
->next_scan_jiffies
= jiffies
+ IWL_DELAY_NEXT_SCAN
;
6003 static void iwl3945_bg_abort_scan(struct work_struct
*work
)
6005 struct iwl_priv
*priv
= container_of(work
, struct iwl_priv
, abort_scan
);
6007 if (!iwl_is_ready(priv
))
6010 mutex_lock(&priv
->mutex
);
6012 set_bit(STATUS_SCAN_ABORTING
, &priv
->status
);
6013 iwl3945_send_scan_abort(priv
);
6015 mutex_unlock(&priv
->mutex
);
6018 static int iwl3945_mac_config(struct ieee80211_hw
*hw
, u32 changed
);
6020 static void iwl3945_bg_scan_completed(struct work_struct
*work
)
6022 struct iwl_priv
*priv
=
6023 container_of(work
, struct iwl_priv
, scan_completed
);
6025 IWL_DEBUG(IWL_DL_INFO
| IWL_DL_SCAN
, "SCAN complete scan\n");
6027 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6030 if (test_bit(STATUS_CONF_PENDING
, &priv
->status
))
6031 iwl3945_mac_config(priv
->hw
, 0);
6033 ieee80211_scan_completed(priv
->hw
);
6035 /* Since setting the TXPOWER may have been deferred while
6036 * performing the scan, fire one off */
6037 mutex_lock(&priv
->mutex
);
6038 iwl3945_hw_reg_send_txpower(priv
);
6039 mutex_unlock(&priv
->mutex
);
6042 /*****************************************************************************
6044 * mac80211 entry point functions
6046 *****************************************************************************/
6048 #define UCODE_READY_TIMEOUT (2 * HZ)
6050 static int iwl3945_mac_start(struct ieee80211_hw
*hw
)
6052 struct iwl_priv
*priv
= hw
->priv
;
6055 IWL_DEBUG_MAC80211("enter\n");
6057 if (pci_enable_device(priv
->pci_dev
)) {
6058 IWL_ERR(priv
, "Fail to pci_enable_device\n");
6061 pci_restore_state(priv
->pci_dev
);
6062 pci_enable_msi(priv
->pci_dev
);
6064 ret
= request_irq(priv
->pci_dev
->irq
, iwl3945_isr
, IRQF_SHARED
,
6067 IWL_ERR(priv
, "Error allocating IRQ %d\n", priv
->pci_dev
->irq
);
6068 goto out_disable_msi
;
6071 /* we should be verifying the device is ready to be opened */
6072 mutex_lock(&priv
->mutex
);
6074 memset(&priv
->staging39_rxon
, 0, sizeof(struct iwl3945_rxon_cmd
));
6075 /* fetch ucode file from disk, alloc and copy to bus-master buffers ...
6076 * ucode filename and max sizes are card-specific. */
6078 if (!priv
->ucode_code
.len
) {
6079 ret
= iwl3945_read_ucode(priv
);
6081 IWL_ERR(priv
, "Could not read microcode: %d\n", ret
);
6082 mutex_unlock(&priv
->mutex
);
6083 goto out_release_irq
;
6087 ret
= __iwl3945_up(priv
);
6089 mutex_unlock(&priv
->mutex
);
6091 iwl3945_rfkill_set_hw_state(priv
);
6094 goto out_release_irq
;
6096 IWL_DEBUG_INFO("Start UP work.\n");
6098 if (test_bit(STATUS_IN_SUSPEND
, &priv
->status
))
6101 /* Wait for START_ALIVE from ucode. Otherwise callbacks from
6102 * mac80211 will not be run successfully. */
6103 ret
= wait_event_interruptible_timeout(priv
->wait_command_queue
,
6104 test_bit(STATUS_READY
, &priv
->status
),
6105 UCODE_READY_TIMEOUT
);
6107 if (!test_bit(STATUS_READY
, &priv
->status
)) {
6109 "Wait for START_ALIVE timeout after %dms.\n",
6110 jiffies_to_msecs(UCODE_READY_TIMEOUT
));
6112 goto out_release_irq
;
6117 IWL_DEBUG_MAC80211("leave\n");
6121 free_irq(priv
->pci_dev
->irq
, priv
);
6123 pci_disable_msi(priv
->pci_dev
);
6124 pci_disable_device(priv
->pci_dev
);
6126 IWL_DEBUG_MAC80211("leave - failed\n");
6130 static void iwl3945_mac_stop(struct ieee80211_hw
*hw
)
6132 struct iwl_priv
*priv
= hw
->priv
;
6134 IWL_DEBUG_MAC80211("enter\n");
6136 if (!priv
->is_open
) {
6137 IWL_DEBUG_MAC80211("leave - skip\n");
6143 if (iwl_is_ready_rf(priv
)) {
6144 /* stop mac, cancel any scan request and clear
6145 * RXON_FILTER_ASSOC_MSK BIT
6147 mutex_lock(&priv
->mutex
);
6148 iwl3945_scan_cancel_timeout(priv
, 100);
6149 mutex_unlock(&priv
->mutex
);
6154 flush_workqueue(priv
->workqueue
);
6155 free_irq(priv
->pci_dev
->irq
, priv
);
6156 pci_disable_msi(priv
->pci_dev
);
6157 pci_save_state(priv
->pci_dev
);
6158 pci_disable_device(priv
->pci_dev
);
6160 IWL_DEBUG_MAC80211("leave\n");
6163 static int iwl3945_mac_tx(struct ieee80211_hw
*hw
, struct sk_buff
*skb
)
6165 struct iwl_priv
*priv
= hw
->priv
;
6167 IWL_DEBUG_MAC80211("enter\n");
6169 IWL_DEBUG_TX("dev->xmit(%d bytes) at rate 0x%02x\n", skb
->len
,
6170 ieee80211_get_tx_rate(hw
, IEEE80211_SKB_CB(skb
))->bitrate
);
6172 if (iwl3945_tx_skb(priv
, skb
))
6173 dev_kfree_skb_any(skb
);
6175 IWL_DEBUG_MAC80211("leave\n");
6176 return NETDEV_TX_OK
;
6179 static int iwl3945_mac_add_interface(struct ieee80211_hw
*hw
,
6180 struct ieee80211_if_init_conf
*conf
)
6182 struct iwl_priv
*priv
= hw
->priv
;
6183 unsigned long flags
;
6185 IWL_DEBUG_MAC80211("enter: type %d\n", conf
->type
);
6188 IWL_DEBUG_MAC80211("leave - vif != NULL\n");
6192 spin_lock_irqsave(&priv
->lock
, flags
);
6193 priv
->vif
= conf
->vif
;
6194 priv
->iw_mode
= conf
->type
;
6196 spin_unlock_irqrestore(&priv
->lock
, flags
);
6198 mutex_lock(&priv
->mutex
);
6200 if (conf
->mac_addr
) {
6201 IWL_DEBUG_MAC80211("Set: %pM\n", conf
->mac_addr
);
6202 memcpy(priv
->mac_addr
, conf
->mac_addr
, ETH_ALEN
);
6205 if (iwl_is_ready(priv
))
6206 iwl3945_set_mode(priv
, conf
->type
);
6208 mutex_unlock(&priv
->mutex
);
6210 IWL_DEBUG_MAC80211("leave\n");
6215 * iwl3945_mac_config - mac80211 config callback
6217 * We ignore conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME since it seems to
6218 * be set inappropriately and the driver currently sets the hardware up to
6219 * use it whenever needed.
6221 static int iwl3945_mac_config(struct ieee80211_hw
*hw
, u32 changed
)
6223 struct iwl_priv
*priv
= hw
->priv
;
6224 const struct iwl_channel_info
*ch_info
;
6225 struct ieee80211_conf
*conf
= &hw
->conf
;
6226 unsigned long flags
;
6229 mutex_lock(&priv
->mutex
);
6230 IWL_DEBUG_MAC80211("enter to channel %d\n", conf
->channel
->hw_value
);
6232 if (!iwl_is_ready(priv
)) {
6233 IWL_DEBUG_MAC80211("leave - not ready\n");
6238 if (unlikely(!iwl3945_mod_params
.disable_hw_scan
&&
6239 test_bit(STATUS_SCANNING
, &priv
->status
))) {
6240 IWL_DEBUG_MAC80211("leave - scanning\n");
6241 set_bit(STATUS_CONF_PENDING
, &priv
->status
);
6242 mutex_unlock(&priv
->mutex
);
6246 spin_lock_irqsave(&priv
->lock
, flags
);
6248 ch_info
= iwl3945_get_channel_info(priv
, conf
->channel
->band
,
6249 conf
->channel
->hw_value
);
6250 if (!is_channel_valid(ch_info
)) {
6251 IWL_DEBUG_SCAN("Channel %d [%d] is INVALID for this band.\n",
6252 conf
->channel
->hw_value
, conf
->channel
->band
);
6253 IWL_DEBUG_MAC80211("leave - invalid channel\n");
6254 spin_unlock_irqrestore(&priv
->lock
, flags
);
6259 iwl3945_set_rxon_channel(priv
, conf
->channel
->band
, conf
->channel
->hw_value
);
6261 iwl3945_set_flags_for_phymode(priv
, conf
->channel
->band
);
6263 /* The list of supported rates and rate mask can be different
6264 * for each phymode; since the phymode may have changed, reset
6265 * the rate mask to what mac80211 lists */
6266 iwl3945_set_rate(priv
);
6268 spin_unlock_irqrestore(&priv
->lock
, flags
);
6270 #ifdef IEEE80211_CONF_CHANNEL_SWITCH
6271 if (conf
->flags
& IEEE80211_CONF_CHANNEL_SWITCH
) {
6272 iwl3945_hw_channel_switch(priv
, conf
->channel
);
6277 iwl3945_radio_kill_sw(priv
, !conf
->radio_enabled
);
6279 if (!conf
->radio_enabled
) {
6280 IWL_DEBUG_MAC80211("leave - radio disabled\n");
6284 if (iwl_is_rfkill(priv
)) {
6285 IWL_DEBUG_MAC80211("leave - RF kill\n");
6290 iwl3945_set_rate(priv
);
6292 if (memcmp(&priv
->active39_rxon
,
6293 &priv
->staging39_rxon
, sizeof(priv
->staging39_rxon
)))
6294 iwl3945_commit_rxon(priv
);
6296 IWL_DEBUG_INFO("No re-sending same RXON configuration.\n");
6298 IWL_DEBUG_MAC80211("leave\n");
6301 clear_bit(STATUS_CONF_PENDING
, &priv
->status
);
6302 mutex_unlock(&priv
->mutex
);
6306 static void iwl3945_config_ap(struct iwl_priv
*priv
)
6310 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6313 /* The following should be done only at AP bring up */
6314 if (!(iwl3945_is_associated(priv
))) {
6316 /* RXON - unassoc (to set timing command) */
6317 priv
->staging39_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
6318 iwl3945_commit_rxon(priv
);
6321 memset(&priv
->rxon_timing
, 0, sizeof(struct iwl_rxon_time_cmd
));
6322 iwl3945_setup_rxon_timing(priv
);
6323 rc
= iwl3945_send_cmd_pdu(priv
, REPLY_RXON_TIMING
,
6324 sizeof(priv
->rxon_timing
), &priv
->rxon_timing
);
6326 IWL_WARN(priv
, "REPLY_RXON_TIMING failed - "
6327 "Attempting to continue.\n");
6329 /* FIXME: what should be the assoc_id for AP? */
6330 priv
->staging39_rxon
.assoc_id
= cpu_to_le16(priv
->assoc_id
);
6331 if (priv
->assoc_capability
& WLAN_CAPABILITY_SHORT_PREAMBLE
)
6332 priv
->staging39_rxon
.flags
|=
6333 RXON_FLG_SHORT_PREAMBLE_MSK
;
6335 priv
->staging39_rxon
.flags
&=
6336 ~RXON_FLG_SHORT_PREAMBLE_MSK
;
6338 if (priv
->staging39_rxon
.flags
& RXON_FLG_BAND_24G_MSK
) {
6339 if (priv
->assoc_capability
&
6340 WLAN_CAPABILITY_SHORT_SLOT_TIME
)
6341 priv
->staging39_rxon
.flags
|=
6342 RXON_FLG_SHORT_SLOT_MSK
;
6344 priv
->staging39_rxon
.flags
&=
6345 ~RXON_FLG_SHORT_SLOT_MSK
;
6347 if (priv
->iw_mode
== NL80211_IFTYPE_ADHOC
)
6348 priv
->staging39_rxon
.flags
&=
6349 ~RXON_FLG_SHORT_SLOT_MSK
;
6351 /* restore RXON assoc */
6352 priv
->staging39_rxon
.filter_flags
|= RXON_FILTER_ASSOC_MSK
;
6353 iwl3945_commit_rxon(priv
);
6354 iwl3945_add_station(priv
, iwl_bcast_addr
, 0, 0);
6356 iwl3945_send_beacon_cmd(priv
);
6358 /* FIXME - we need to add code here to detect a totally new
6359 * configuration, reset the AP, unassoc, rxon timing, assoc,
6360 * clear sta table, add BCAST sta... */
6363 static int iwl3945_mac_config_interface(struct ieee80211_hw
*hw
,
6364 struct ieee80211_vif
*vif
,
6365 struct ieee80211_if_conf
*conf
)
6367 struct iwl_priv
*priv
= hw
->priv
;
6373 if (priv
->vif
!= vif
) {
6374 IWL_DEBUG_MAC80211("leave - priv->vif != vif\n");
6378 /* handle this temporarily here */
6379 if (priv
->iw_mode
== NL80211_IFTYPE_ADHOC
&&
6380 conf
->changed
& IEEE80211_IFCC_BEACON
) {
6381 struct sk_buff
*beacon
= ieee80211_beacon_get(hw
, vif
);
6384 mutex_lock(&priv
->mutex
);
6385 rc
= iwl3945_mac_beacon_update(hw
, beacon
);
6386 mutex_unlock(&priv
->mutex
);
6391 if (!iwl_is_alive(priv
))
6394 mutex_lock(&priv
->mutex
);
6397 IWL_DEBUG_MAC80211("bssid: %pM\n", conf
->bssid
);
6400 * very dubious code was here; the probe filtering flag is never set:
6402 if (unlikely(test_bit(STATUS_SCANNING, &priv->status)) &&
6403 !(priv->hw->flags & IEEE80211_HW_NO_PROBE_FILTERING)) {
6406 if (priv
->iw_mode
== NL80211_IFTYPE_AP
) {
6408 conf
->bssid
= priv
->mac_addr
;
6409 memcpy(priv
->bssid
, priv
->mac_addr
, ETH_ALEN
);
6410 IWL_DEBUG_MAC80211("bssid was set to: %pM\n",
6413 if (priv
->ibss_beacon
)
6414 dev_kfree_skb(priv
->ibss_beacon
);
6416 priv
->ibss_beacon
= ieee80211_beacon_get(hw
, vif
);
6419 if (iwl_is_rfkill(priv
))
6422 if (conf
->bssid
&& !is_zero_ether_addr(conf
->bssid
) &&
6423 !is_multicast_ether_addr(conf
->bssid
)) {
6424 /* If there is currently a HW scan going on in the background
6425 * then we need to cancel it else the RXON below will fail. */
6426 if (iwl3945_scan_cancel_timeout(priv
, 100)) {
6427 IWL_WARN(priv
, "Aborted scan still in progress "
6429 IWL_DEBUG_MAC80211("leaving - scan abort failed.\n");
6430 mutex_unlock(&priv
->mutex
);
6433 memcpy(priv
->staging39_rxon
.bssid_addr
, conf
->bssid
, ETH_ALEN
);
6435 /* TODO: Audit driver for usage of these members and see
6436 * if mac80211 deprecates them (priv->bssid looks like it
6437 * shouldn't be there, but I haven't scanned the IBSS code
6438 * to verify) - jpk */
6439 memcpy(priv
->bssid
, conf
->bssid
, ETH_ALEN
);
6441 if (priv
->iw_mode
== NL80211_IFTYPE_AP
)
6442 iwl3945_config_ap(priv
);
6444 rc
= iwl3945_commit_rxon(priv
);
6445 if ((priv
->iw_mode
== NL80211_IFTYPE_STATION
) && rc
)
6446 iwl3945_add_station(priv
,
6447 priv
->active39_rxon
.bssid_addr
, 1, 0);
6451 iwl3945_scan_cancel_timeout(priv
, 100);
6452 priv
->staging39_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
6453 iwl3945_commit_rxon(priv
);
6457 IWL_DEBUG_MAC80211("leave\n");
6458 mutex_unlock(&priv
->mutex
);
6463 static void iwl3945_configure_filter(struct ieee80211_hw
*hw
,
6464 unsigned int changed_flags
,
6465 unsigned int *total_flags
,
6466 int mc_count
, struct dev_addr_list
*mc_list
)
6468 struct iwl_priv
*priv
= hw
->priv
;
6469 __le32
*filter_flags
= &priv
->staging39_rxon
.filter_flags
;
6471 IWL_DEBUG_MAC80211("Enter: changed: 0x%x, total: 0x%x\n",
6472 changed_flags
, *total_flags
);
6474 if (changed_flags
& (FIF_OTHER_BSS
| FIF_PROMISC_IN_BSS
)) {
6475 if (*total_flags
& (FIF_OTHER_BSS
| FIF_PROMISC_IN_BSS
))
6476 *filter_flags
|= RXON_FILTER_PROMISC_MSK
;
6478 *filter_flags
&= ~RXON_FILTER_PROMISC_MSK
;
6480 if (changed_flags
& FIF_ALLMULTI
) {
6481 if (*total_flags
& FIF_ALLMULTI
)
6482 *filter_flags
|= RXON_FILTER_ACCEPT_GRP_MSK
;
6484 *filter_flags
&= ~RXON_FILTER_ACCEPT_GRP_MSK
;
6486 if (changed_flags
& FIF_CONTROL
) {
6487 if (*total_flags
& FIF_CONTROL
)
6488 *filter_flags
|= RXON_FILTER_CTL2HOST_MSK
;
6490 *filter_flags
&= ~RXON_FILTER_CTL2HOST_MSK
;
6492 if (changed_flags
& FIF_BCN_PRBRESP_PROMISC
) {
6493 if (*total_flags
& FIF_BCN_PRBRESP_PROMISC
)
6494 *filter_flags
|= RXON_FILTER_BCON_AWARE_MSK
;
6496 *filter_flags
&= ~RXON_FILTER_BCON_AWARE_MSK
;
6499 /* We avoid iwl_commit_rxon here to commit the new filter flags
6500 * since mac80211 will call ieee80211_hw_config immediately.
6501 * (mc_list is not supported at this time). Otherwise, we need to
6502 * queue a background iwl_commit_rxon work.
6505 *total_flags
&= FIF_OTHER_BSS
| FIF_ALLMULTI
| FIF_PROMISC_IN_BSS
|
6506 FIF_BCN_PRBRESP_PROMISC
| FIF_CONTROL
;
6509 static void iwl3945_mac_remove_interface(struct ieee80211_hw
*hw
,
6510 struct ieee80211_if_init_conf
*conf
)
6512 struct iwl_priv
*priv
= hw
->priv
;
6514 IWL_DEBUG_MAC80211("enter\n");
6516 mutex_lock(&priv
->mutex
);
6518 if (iwl_is_ready_rf(priv
)) {
6519 iwl3945_scan_cancel_timeout(priv
, 100);
6520 priv
->staging39_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
6521 iwl3945_commit_rxon(priv
);
6523 if (priv
->vif
== conf
->vif
) {
6525 memset(priv
->bssid
, 0, ETH_ALEN
);
6527 mutex_unlock(&priv
->mutex
);
6529 IWL_DEBUG_MAC80211("leave\n");
6532 #define IWL_DELAY_NEXT_SCAN_AFTER_ASSOC (HZ*6)
6534 static void iwl3945_bss_info_changed(struct ieee80211_hw
*hw
,
6535 struct ieee80211_vif
*vif
,
6536 struct ieee80211_bss_conf
*bss_conf
,
6539 struct iwl_priv
*priv
= hw
->priv
;
6541 IWL_DEBUG_MAC80211("changes = 0x%X\n", changes
);
6543 if (changes
& BSS_CHANGED_ERP_PREAMBLE
) {
6544 IWL_DEBUG_MAC80211("ERP_PREAMBLE %d\n",
6545 bss_conf
->use_short_preamble
);
6546 if (bss_conf
->use_short_preamble
)
6547 priv
->staging39_rxon
.flags
|= RXON_FLG_SHORT_PREAMBLE_MSK
;
6549 priv
->staging39_rxon
.flags
&= ~RXON_FLG_SHORT_PREAMBLE_MSK
;
6552 if (changes
& BSS_CHANGED_ERP_CTS_PROT
) {
6553 IWL_DEBUG_MAC80211("ERP_CTS %d\n", bss_conf
->use_cts_prot
);
6554 if (bss_conf
->use_cts_prot
&& (priv
->band
!= IEEE80211_BAND_5GHZ
))
6555 priv
->staging39_rxon
.flags
|= RXON_FLG_TGG_PROTECT_MSK
;
6557 priv
->staging39_rxon
.flags
&= ~RXON_FLG_TGG_PROTECT_MSK
;
6560 if (changes
& BSS_CHANGED_ASSOC
) {
6561 IWL_DEBUG_MAC80211("ASSOC %d\n", bss_conf
->assoc
);
6562 /* This should never happen as this function should
6563 * never be called from interrupt context. */
6564 if (WARN_ON_ONCE(in_interrupt()))
6566 if (bss_conf
->assoc
) {
6567 priv
->assoc_id
= bss_conf
->aid
;
6568 priv
->beacon_int
= bss_conf
->beacon_int
;
6569 priv
->timestamp
= bss_conf
->timestamp
;
6570 priv
->assoc_capability
= bss_conf
->assoc_capability
;
6571 priv
->next_scan_jiffies
= jiffies
+
6572 IWL_DELAY_NEXT_SCAN_AFTER_ASSOC
;
6573 mutex_lock(&priv
->mutex
);
6574 iwl3945_post_associate(priv
);
6575 mutex_unlock(&priv
->mutex
);
6578 IWL_DEBUG_MAC80211("DISASSOC %d\n", bss_conf
->assoc
);
6580 } else if (changes
&& iwl3945_is_associated(priv
) && priv
->assoc_id
) {
6581 IWL_DEBUG_MAC80211("Associated Changes %d\n", changes
);
6582 iwl3945_send_rxon_assoc(priv
);
6587 static int iwl3945_mac_hw_scan(struct ieee80211_hw
*hw
, u8
*ssid
, size_t len
)
6590 unsigned long flags
;
6591 struct iwl_priv
*priv
= hw
->priv
;
6592 DECLARE_SSID_BUF(ssid_buf
);
6594 IWL_DEBUG_MAC80211("enter\n");
6596 mutex_lock(&priv
->mutex
);
6597 spin_lock_irqsave(&priv
->lock
, flags
);
6599 if (!iwl_is_ready_rf(priv
)) {
6601 IWL_DEBUG_MAC80211("leave - not ready or exit pending\n");
6605 /* we don't schedule scan within next_scan_jiffies period */
6606 if (priv
->next_scan_jiffies
&&
6607 time_after(priv
->next_scan_jiffies
, jiffies
)) {
6611 /* if we just finished scan ask for delay for a broadcast scan */
6612 if ((len
== 0) && priv
->last_scan_jiffies
&&
6613 time_after(priv
->last_scan_jiffies
+ IWL_DELAY_NEXT_SCAN
,
6619 IWL_DEBUG_SCAN("direct scan for %s [%d]\n ",
6620 print_ssid(ssid_buf
, ssid
, len
), (int)len
);
6622 priv
->one_direct_scan
= 1;
6623 priv
->direct_ssid_len
= (u8
)
6624 min((u8
) len
, (u8
) IW_ESSID_MAX_SIZE
);
6625 memcpy(priv
->direct_ssid
, ssid
, priv
->direct_ssid_len
);
6627 priv
->one_direct_scan
= 0;
6629 rc
= iwl3945_scan_initiate(priv
);
6631 IWL_DEBUG_MAC80211("leave\n");
6634 spin_unlock_irqrestore(&priv
->lock
, flags
);
6635 mutex_unlock(&priv
->mutex
);
6640 static int iwl3945_mac_set_key(struct ieee80211_hw
*hw
, enum set_key_cmd cmd
,
6641 const u8
*local_addr
, const u8
*addr
,
6642 struct ieee80211_key_conf
*key
)
6644 struct iwl_priv
*priv
= hw
->priv
;
6648 IWL_DEBUG_MAC80211("enter\n");
6650 if (iwl3945_mod_params
.sw_crypto
) {
6651 IWL_DEBUG_MAC80211("leave - hwcrypto disabled\n");
6655 if (is_zero_ether_addr(addr
))
6656 /* only support pairwise keys */
6659 sta_id
= iwl3945_hw_find_station(priv
, addr
);
6660 if (sta_id
== IWL_INVALID_STATION
) {
6661 IWL_DEBUG_MAC80211("leave - %pM not in station map.\n",
6666 mutex_lock(&priv
->mutex
);
6668 iwl3945_scan_cancel_timeout(priv
, 100);
6672 rc
= iwl3945_update_sta_key_info(priv
, key
, sta_id
);
6674 iwl3945_set_rxon_hwcrypto(priv
, 1);
6675 iwl3945_commit_rxon(priv
);
6676 key
->hw_key_idx
= sta_id
;
6677 IWL_DEBUG_MAC80211("set_key success, using hwcrypto\n");
6678 key
->flags
|= IEEE80211_KEY_FLAG_GENERATE_IV
;
6682 rc
= iwl3945_clear_sta_key_info(priv
, sta_id
);
6684 iwl3945_set_rxon_hwcrypto(priv
, 0);
6685 iwl3945_commit_rxon(priv
);
6686 IWL_DEBUG_MAC80211("disable hwcrypto key\n");
6693 IWL_DEBUG_MAC80211("leave\n");
6694 mutex_unlock(&priv
->mutex
);
6699 static int iwl3945_mac_conf_tx(struct ieee80211_hw
*hw
, u16 queue
,
6700 const struct ieee80211_tx_queue_params
*params
)
6702 struct iwl_priv
*priv
= hw
->priv
;
6703 unsigned long flags
;
6706 IWL_DEBUG_MAC80211("enter\n");
6708 if (!iwl_is_ready_rf(priv
)) {
6709 IWL_DEBUG_MAC80211("leave - RF not ready\n");
6713 if (queue
>= AC_NUM
) {
6714 IWL_DEBUG_MAC80211("leave - queue >= AC_NUM %d\n", queue
);
6718 q
= AC_NUM
- 1 - queue
;
6720 spin_lock_irqsave(&priv
->lock
, flags
);
6722 priv
->qos_data
.def_qos_parm
.ac
[q
].cw_min
= cpu_to_le16(params
->cw_min
);
6723 priv
->qos_data
.def_qos_parm
.ac
[q
].cw_max
= cpu_to_le16(params
->cw_max
);
6724 priv
->qos_data
.def_qos_parm
.ac
[q
].aifsn
= params
->aifs
;
6725 priv
->qos_data
.def_qos_parm
.ac
[q
].edca_txop
=
6726 cpu_to_le16((params
->txop
* 32));
6728 priv
->qos_data
.def_qos_parm
.ac
[q
].reserved1
= 0;
6729 priv
->qos_data
.qos_active
= 1;
6731 spin_unlock_irqrestore(&priv
->lock
, flags
);
6733 mutex_lock(&priv
->mutex
);
6734 if (priv
->iw_mode
== NL80211_IFTYPE_AP
)
6735 iwl3945_activate_qos(priv
, 1);
6736 else if (priv
->assoc_id
&& iwl3945_is_associated(priv
))
6737 iwl3945_activate_qos(priv
, 0);
6739 mutex_unlock(&priv
->mutex
);
6741 IWL_DEBUG_MAC80211("leave\n");
6745 static int iwl3945_mac_get_tx_stats(struct ieee80211_hw
*hw
,
6746 struct ieee80211_tx_queue_stats
*stats
)
6748 struct iwl_priv
*priv
= hw
->priv
;
6750 struct iwl3945_tx_queue
*txq
;
6751 struct iwl_queue
*q
;
6752 unsigned long flags
;
6754 IWL_DEBUG_MAC80211("enter\n");
6756 if (!iwl_is_ready_rf(priv
)) {
6757 IWL_DEBUG_MAC80211("leave - RF not ready\n");
6761 spin_lock_irqsave(&priv
->lock
, flags
);
6763 for (i
= 0; i
< AC_NUM
; i
++) {
6764 txq
= &priv
->txq39
[i
];
6766 avail
= iwl_queue_space(q
);
6768 stats
[i
].len
= q
->n_window
- avail
;
6769 stats
[i
].limit
= q
->n_window
- q
->high_mark
;
6770 stats
[i
].count
= q
->n_window
;
6773 spin_unlock_irqrestore(&priv
->lock
, flags
);
6775 IWL_DEBUG_MAC80211("leave\n");
6780 static void iwl3945_mac_reset_tsf(struct ieee80211_hw
*hw
)
6782 struct iwl_priv
*priv
= hw
->priv
;
6783 unsigned long flags
;
6785 mutex_lock(&priv
->mutex
);
6786 IWL_DEBUG_MAC80211("enter\n");
6788 iwl_reset_qos(priv
);
6790 spin_lock_irqsave(&priv
->lock
, flags
);
6792 priv
->assoc_capability
= 0;
6793 priv
->call_post_assoc_from_beacon
= 0;
6795 /* new association get rid of ibss beacon skb */
6796 if (priv
->ibss_beacon
)
6797 dev_kfree_skb(priv
->ibss_beacon
);
6799 priv
->ibss_beacon
= NULL
;
6801 priv
->beacon_int
= priv
->hw
->conf
.beacon_int
;
6802 priv
->timestamp
= 0;
6803 if ((priv
->iw_mode
== NL80211_IFTYPE_STATION
))
6804 priv
->beacon_int
= 0;
6806 spin_unlock_irqrestore(&priv
->lock
, flags
);
6808 if (!iwl_is_ready_rf(priv
)) {
6809 IWL_DEBUG_MAC80211("leave - not ready\n");
6810 mutex_unlock(&priv
->mutex
);
6814 /* we are restarting association process
6815 * clear RXON_FILTER_ASSOC_MSK bit
6817 if (priv
->iw_mode
!= NL80211_IFTYPE_AP
) {
6818 iwl3945_scan_cancel_timeout(priv
, 100);
6819 priv
->staging39_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
6820 iwl3945_commit_rxon(priv
);
6823 /* Per mac80211.h: This is only used in IBSS mode... */
6824 if (priv
->iw_mode
!= NL80211_IFTYPE_ADHOC
) {
6826 IWL_DEBUG_MAC80211("leave - not in IBSS\n");
6827 mutex_unlock(&priv
->mutex
);
6831 iwl3945_set_rate(priv
);
6833 mutex_unlock(&priv
->mutex
);
6835 IWL_DEBUG_MAC80211("leave\n");
6839 static int iwl3945_mac_beacon_update(struct ieee80211_hw
*hw
, struct sk_buff
*skb
)
6841 struct iwl_priv
*priv
= hw
->priv
;
6842 unsigned long flags
;
6844 IWL_DEBUG_MAC80211("enter\n");
6846 if (!iwl_is_ready_rf(priv
)) {
6847 IWL_DEBUG_MAC80211("leave - RF not ready\n");
6851 if (priv
->iw_mode
!= NL80211_IFTYPE_ADHOC
) {
6852 IWL_DEBUG_MAC80211("leave - not IBSS\n");
6856 spin_lock_irqsave(&priv
->lock
, flags
);
6858 if (priv
->ibss_beacon
)
6859 dev_kfree_skb(priv
->ibss_beacon
);
6861 priv
->ibss_beacon
= skb
;
6865 IWL_DEBUG_MAC80211("leave\n");
6866 spin_unlock_irqrestore(&priv
->lock
, flags
);
6868 iwl_reset_qos(priv
);
6870 iwl3945_post_associate(priv
);
6876 /*****************************************************************************
6880 *****************************************************************************/
6882 #ifdef CONFIG_IWL3945_DEBUG
6885 * The following adds a new attribute to the sysfs representation
6886 * of this device driver (i.e. a new file in /sys/bus/pci/drivers/iwl/)
6887 * used for controlling the debug level.
6889 * See the level definitions in iwl for details.
6891 static ssize_t
show_debug_level(struct device
*d
,
6892 struct device_attribute
*attr
, char *buf
)
6894 struct iwl_priv
*priv
= d
->driver_data
;
6896 return sprintf(buf
, "0x%08X\n", priv
->debug_level
);
6898 static ssize_t
store_debug_level(struct device
*d
,
6899 struct device_attribute
*attr
,
6900 const char *buf
, size_t count
)
6902 struct iwl_priv
*priv
= d
->driver_data
;
6906 ret
= strict_strtoul(buf
, 0, &val
);
6908 IWL_INFO(priv
, "%s is not in hex or decimal form.\n", buf
);
6910 priv
->debug_level
= val
;
6912 return strnlen(buf
, count
);
6915 static DEVICE_ATTR(debug_level
, S_IWUSR
| S_IRUGO
,
6916 show_debug_level
, store_debug_level
);
6918 #endif /* CONFIG_IWL3945_DEBUG */
6920 static ssize_t
show_temperature(struct device
*d
,
6921 struct device_attribute
*attr
, char *buf
)
6923 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
6925 if (!iwl_is_alive(priv
))
6928 return sprintf(buf
, "%d\n", iwl3945_hw_get_temperature(priv
));
6931 static DEVICE_ATTR(temperature
, S_IRUGO
, show_temperature
, NULL
);
6933 static ssize_t
show_tx_power(struct device
*d
,
6934 struct device_attribute
*attr
, char *buf
)
6936 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
6937 return sprintf(buf
, "%d\n", priv
->user_txpower_limit
);
6940 static ssize_t
store_tx_power(struct device
*d
,
6941 struct device_attribute
*attr
,
6942 const char *buf
, size_t count
)
6944 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
6945 char *p
= (char *)buf
;
6948 val
= simple_strtoul(p
, &p
, 10);
6950 IWL_INFO(priv
, ": %s is not in decimal form.\n", buf
);
6952 iwl3945_hw_reg_set_txpower(priv
, val
);
6957 static DEVICE_ATTR(tx_power
, S_IWUSR
| S_IRUGO
, show_tx_power
, store_tx_power
);
6959 static ssize_t
show_flags(struct device
*d
,
6960 struct device_attribute
*attr
, char *buf
)
6962 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
6964 return sprintf(buf
, "0x%04X\n", priv
->active39_rxon
.flags
);
6967 static ssize_t
store_flags(struct device
*d
,
6968 struct device_attribute
*attr
,
6969 const char *buf
, size_t count
)
6971 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
6972 u32 flags
= simple_strtoul(buf
, NULL
, 0);
6974 mutex_lock(&priv
->mutex
);
6975 if (le32_to_cpu(priv
->staging39_rxon
.flags
) != flags
) {
6976 /* Cancel any currently running scans... */
6977 if (iwl3945_scan_cancel_timeout(priv
, 100))
6978 IWL_WARN(priv
, "Could not cancel scan.\n");
6980 IWL_DEBUG_INFO("Committing rxon.flags = 0x%04X\n",
6982 priv
->staging39_rxon
.flags
= cpu_to_le32(flags
);
6983 iwl3945_commit_rxon(priv
);
6986 mutex_unlock(&priv
->mutex
);
6991 static DEVICE_ATTR(flags
, S_IWUSR
| S_IRUGO
, show_flags
, store_flags
);
6993 static ssize_t
show_filter_flags(struct device
*d
,
6994 struct device_attribute
*attr
, char *buf
)
6996 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
6998 return sprintf(buf
, "0x%04X\n",
6999 le32_to_cpu(priv
->active39_rxon
.filter_flags
));
7002 static ssize_t
store_filter_flags(struct device
*d
,
7003 struct device_attribute
*attr
,
7004 const char *buf
, size_t count
)
7006 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
7007 u32 filter_flags
= simple_strtoul(buf
, NULL
, 0);
7009 mutex_lock(&priv
->mutex
);
7010 if (le32_to_cpu(priv
->staging39_rxon
.filter_flags
) != filter_flags
) {
7011 /* Cancel any currently running scans... */
7012 if (iwl3945_scan_cancel_timeout(priv
, 100))
7013 IWL_WARN(priv
, "Could not cancel scan.\n");
7015 IWL_DEBUG_INFO("Committing rxon.filter_flags = "
7016 "0x%04X\n", filter_flags
);
7017 priv
->staging39_rxon
.filter_flags
=
7018 cpu_to_le32(filter_flags
);
7019 iwl3945_commit_rxon(priv
);
7022 mutex_unlock(&priv
->mutex
);
7027 static DEVICE_ATTR(filter_flags
, S_IWUSR
| S_IRUGO
, show_filter_flags
,
7028 store_filter_flags
);
7030 #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT
7032 static ssize_t
show_measurement(struct device
*d
,
7033 struct device_attribute
*attr
, char *buf
)
7035 struct iwl_priv
*priv
= dev_get_drvdata(d
);
7036 struct iwl_spectrum_notification measure_report
;
7037 u32 size
= sizeof(measure_report
), len
= 0, ofs
= 0;
7038 u8
*data
= (u8
*)&measure_report
;
7039 unsigned long flags
;
7041 spin_lock_irqsave(&priv
->lock
, flags
);
7042 if (!(priv
->measurement_status
& MEASUREMENT_READY
)) {
7043 spin_unlock_irqrestore(&priv
->lock
, flags
);
7046 memcpy(&measure_report
, &priv
->measure_report
, size
);
7047 priv
->measurement_status
= 0;
7048 spin_unlock_irqrestore(&priv
->lock
, flags
);
7050 while (size
&& (PAGE_SIZE
- len
)) {
7051 hex_dump_to_buffer(data
+ ofs
, size
, 16, 1, buf
+ len
,
7052 PAGE_SIZE
- len
, 1);
7054 if (PAGE_SIZE
- len
)
7058 size
-= min(size
, 16U);
7064 static ssize_t
store_measurement(struct device
*d
,
7065 struct device_attribute
*attr
,
7066 const char *buf
, size_t count
)
7068 struct iwl_priv
*priv
= dev_get_drvdata(d
);
7069 struct ieee80211_measurement_params params
= {
7070 .channel
= le16_to_cpu(priv
->active39_rxon
.channel
),
7071 .start_time
= cpu_to_le64(priv
->last_tsf
),
7072 .duration
= cpu_to_le16(1),
7074 u8 type
= IWL_MEASURE_BASIC
;
7080 strncpy(buffer
, buf
, min(sizeof(buffer
), count
));
7081 channel
= simple_strtoul(p
, NULL
, 0);
7083 params
.channel
= channel
;
7086 while (*p
&& *p
!= ' ')
7089 type
= simple_strtoul(p
+ 1, NULL
, 0);
7092 IWL_DEBUG_INFO("Invoking measurement of type %d on "
7093 "channel %d (for '%s')\n", type
, params
.channel
, buf
);
7094 iwl3945_get_measurement(priv
, ¶ms
, type
);
7099 static DEVICE_ATTR(measurement
, S_IRUSR
| S_IWUSR
,
7100 show_measurement
, store_measurement
);
7101 #endif /* CONFIG_IWL3945_SPECTRUM_MEASUREMENT */
7103 static ssize_t
store_retry_rate(struct device
*d
,
7104 struct device_attribute
*attr
,
7105 const char *buf
, size_t count
)
7107 struct iwl_priv
*priv
= dev_get_drvdata(d
);
7109 priv
->retry_rate
= simple_strtoul(buf
, NULL
, 0);
7110 if (priv
->retry_rate
<= 0)
7111 priv
->retry_rate
= 1;
7116 static ssize_t
show_retry_rate(struct device
*d
,
7117 struct device_attribute
*attr
, char *buf
)
7119 struct iwl_priv
*priv
= dev_get_drvdata(d
);
7120 return sprintf(buf
, "%d", priv
->retry_rate
);
7123 static DEVICE_ATTR(retry_rate
, S_IWUSR
| S_IRUSR
, show_retry_rate
,
7126 static ssize_t
store_power_level(struct device
*d
,
7127 struct device_attribute
*attr
,
7128 const char *buf
, size_t count
)
7130 struct iwl_priv
*priv
= dev_get_drvdata(d
);
7134 mode
= simple_strtoul(buf
, NULL
, 0);
7135 mutex_lock(&priv
->mutex
);
7137 if (!iwl_is_ready(priv
)) {
7142 if ((mode
< 1) || (mode
> IWL39_POWER_LIMIT
) ||
7143 (mode
== IWL39_POWER_AC
))
7144 mode
= IWL39_POWER_AC
;
7146 mode
|= IWL_POWER_ENABLED
;
7148 if (mode
!= priv
->power_mode
) {
7149 rc
= iwl3945_send_power_mode(priv
, IWL_POWER_LEVEL(mode
));
7151 IWL_DEBUG_MAC80211("failed setting power mode.\n");
7154 priv
->power_mode
= mode
;
7160 mutex_unlock(&priv
->mutex
);
7164 #define MAX_WX_STRING 80
7166 /* Values are in microsecond */
7167 static const s32 timeout_duration
[] = {
7174 static const s32 period_duration
[] = {
7182 static ssize_t
show_power_level(struct device
*d
,
7183 struct device_attribute
*attr
, char *buf
)
7185 struct iwl_priv
*priv
= dev_get_drvdata(d
);
7186 int level
= IWL_POWER_LEVEL(priv
->power_mode
);
7189 p
+= sprintf(p
, "%d ", level
);
7191 case IWL_POWER_MODE_CAM
:
7192 case IWL39_POWER_AC
:
7193 p
+= sprintf(p
, "(AC)");
7195 case IWL39_POWER_BATTERY
:
7196 p
+= sprintf(p
, "(BATTERY)");
7200 "(Timeout %dms, Period %dms)",
7201 timeout_duration
[level
- 1] / 1000,
7202 period_duration
[level
- 1] / 1000);
7205 if (!(priv
->power_mode
& IWL_POWER_ENABLED
))
7206 p
+= sprintf(p
, " OFF\n");
7208 p
+= sprintf(p
, " \n");
7214 static DEVICE_ATTR(power_level
, S_IWUSR
| S_IRUSR
, show_power_level
,
7217 static ssize_t
show_channels(struct device
*d
,
7218 struct device_attribute
*attr
, char *buf
)
7220 /* all this shit doesn't belong into sysfs anyway */
7224 static DEVICE_ATTR(channels
, S_IRUSR
, show_channels
, NULL
);
7226 static ssize_t
show_statistics(struct device
*d
,
7227 struct device_attribute
*attr
, char *buf
)
7229 struct iwl_priv
*priv
= dev_get_drvdata(d
);
7230 u32 size
= sizeof(struct iwl3945_notif_statistics
);
7231 u32 len
= 0, ofs
= 0;
7232 u8
*data
= (u8
*)&priv
->statistics_39
;
7235 if (!iwl_is_alive(priv
))
7238 mutex_lock(&priv
->mutex
);
7239 rc
= iwl3945_send_statistics_request(priv
);
7240 mutex_unlock(&priv
->mutex
);
7244 "Error sending statistics request: 0x%08X\n", rc
);
7248 while (size
&& (PAGE_SIZE
- len
)) {
7249 hex_dump_to_buffer(data
+ ofs
, size
, 16, 1, buf
+ len
,
7250 PAGE_SIZE
- len
, 1);
7252 if (PAGE_SIZE
- len
)
7256 size
-= min(size
, 16U);
7262 static DEVICE_ATTR(statistics
, S_IRUGO
, show_statistics
, NULL
);
7264 static ssize_t
show_antenna(struct device
*d
,
7265 struct device_attribute
*attr
, char *buf
)
7267 struct iwl_priv
*priv
= dev_get_drvdata(d
);
7269 if (!iwl_is_alive(priv
))
7272 return sprintf(buf
, "%d\n", priv
->antenna
);
7275 static ssize_t
store_antenna(struct device
*d
,
7276 struct device_attribute
*attr
,
7277 const char *buf
, size_t count
)
7280 struct iwl_priv
*priv
= dev_get_drvdata(d
);
7285 if (sscanf(buf
, "%1i", &ant
) != 1) {
7286 IWL_DEBUG_INFO("not in hex or decimal form.\n");
7290 if ((ant
>= 0) && (ant
<= 2)) {
7291 IWL_DEBUG_INFO("Setting antenna select to %d.\n", ant
);
7292 priv
->antenna
= (enum iwl3945_antenna
)ant
;
7294 IWL_DEBUG_INFO("Bad antenna select value %d.\n", ant
);
7300 static DEVICE_ATTR(antenna
, S_IWUSR
| S_IRUGO
, show_antenna
, store_antenna
);
7302 static ssize_t
show_status(struct device
*d
,
7303 struct device_attribute
*attr
, char *buf
)
7305 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
7306 if (!iwl_is_alive(priv
))
7308 return sprintf(buf
, "0x%08x\n", (int)priv
->status
);
7311 static DEVICE_ATTR(status
, S_IRUGO
, show_status
, NULL
);
7313 static ssize_t
dump_error_log(struct device
*d
,
7314 struct device_attribute
*attr
,
7315 const char *buf
, size_t count
)
7317 char *p
= (char *)buf
;
7320 iwl3945_dump_nic_error_log((struct iwl_priv
*)d
->driver_data
);
7322 return strnlen(buf
, count
);
7325 static DEVICE_ATTR(dump_errors
, S_IWUSR
, NULL
, dump_error_log
);
7327 static ssize_t
dump_event_log(struct device
*d
,
7328 struct device_attribute
*attr
,
7329 const char *buf
, size_t count
)
7331 char *p
= (char *)buf
;
7334 iwl3945_dump_nic_event_log((struct iwl_priv
*)d
->driver_data
);
7336 return strnlen(buf
, count
);
7339 static DEVICE_ATTR(dump_events
, S_IWUSR
, NULL
, dump_event_log
);
7341 /*****************************************************************************
7343 * driver setup and tear down
7345 *****************************************************************************/
7347 static void iwl3945_setup_deferred_work(struct iwl_priv
*priv
)
7349 priv
->workqueue
= create_workqueue(DRV_NAME
);
7351 init_waitqueue_head(&priv
->wait_command_queue
);
7353 INIT_WORK(&priv
->up
, iwl3945_bg_up
);
7354 INIT_WORK(&priv
->restart
, iwl3945_bg_restart
);
7355 INIT_WORK(&priv
->rx_replenish
, iwl3945_bg_rx_replenish
);
7356 INIT_WORK(&priv
->scan_completed
, iwl3945_bg_scan_completed
);
7357 INIT_WORK(&priv
->request_scan
, iwl3945_bg_request_scan
);
7358 INIT_WORK(&priv
->abort_scan
, iwl3945_bg_abort_scan
);
7359 INIT_WORK(&priv
->rf_kill
, iwl3945_bg_rf_kill
);
7360 INIT_WORK(&priv
->beacon_update
, iwl3945_bg_beacon_update
);
7361 INIT_DELAYED_WORK(&priv
->init_alive_start
, iwl3945_bg_init_alive_start
);
7362 INIT_DELAYED_WORK(&priv
->alive_start
, iwl3945_bg_alive_start
);
7363 INIT_DELAYED_WORK(&priv
->scan_check
, iwl3945_bg_scan_check
);
7365 iwl3945_hw_setup_deferred_work(priv
);
7367 tasklet_init(&priv
->irq_tasklet
, (void (*)(unsigned long))
7368 iwl3945_irq_tasklet
, (unsigned long)priv
);
7371 static void iwl3945_cancel_deferred_work(struct iwl_priv
*priv
)
7373 iwl3945_hw_cancel_deferred_work(priv
);
7375 cancel_delayed_work_sync(&priv
->init_alive_start
);
7376 cancel_delayed_work(&priv
->scan_check
);
7377 cancel_delayed_work(&priv
->alive_start
);
7378 cancel_work_sync(&priv
->beacon_update
);
7381 static struct attribute
*iwl3945_sysfs_entries
[] = {
7382 &dev_attr_antenna
.attr
,
7383 &dev_attr_channels
.attr
,
7384 &dev_attr_dump_errors
.attr
,
7385 &dev_attr_dump_events
.attr
,
7386 &dev_attr_flags
.attr
,
7387 &dev_attr_filter_flags
.attr
,
7388 #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT
7389 &dev_attr_measurement
.attr
,
7391 &dev_attr_power_level
.attr
,
7392 &dev_attr_retry_rate
.attr
,
7393 &dev_attr_statistics
.attr
,
7394 &dev_attr_status
.attr
,
7395 &dev_attr_temperature
.attr
,
7396 &dev_attr_tx_power
.attr
,
7397 #ifdef CONFIG_IWL3945_DEBUG
7398 &dev_attr_debug_level
.attr
,
7403 static struct attribute_group iwl3945_attribute_group
= {
7404 .name
= NULL
, /* put in device directory */
7405 .attrs
= iwl3945_sysfs_entries
,
7408 static struct ieee80211_ops iwl3945_hw_ops
= {
7409 .tx
= iwl3945_mac_tx
,
7410 .start
= iwl3945_mac_start
,
7411 .stop
= iwl3945_mac_stop
,
7412 .add_interface
= iwl3945_mac_add_interface
,
7413 .remove_interface
= iwl3945_mac_remove_interface
,
7414 .config
= iwl3945_mac_config
,
7415 .config_interface
= iwl3945_mac_config_interface
,
7416 .configure_filter
= iwl3945_configure_filter
,
7417 .set_key
= iwl3945_mac_set_key
,
7418 .get_tx_stats
= iwl3945_mac_get_tx_stats
,
7419 .conf_tx
= iwl3945_mac_conf_tx
,
7420 .reset_tsf
= iwl3945_mac_reset_tsf
,
7421 .bss_info_changed
= iwl3945_bss_info_changed
,
7422 .hw_scan
= iwl3945_mac_hw_scan
7425 int iwl3945_init_drv(struct iwl_priv
*priv
)
7429 priv
->retry_rate
= 1;
7430 priv
->ibss_beacon
= NULL
;
7432 spin_lock_init(&priv
->lock
);
7433 spin_lock_init(&priv
->power_data
.lock
);
7434 spin_lock_init(&priv
->sta_lock
);
7435 spin_lock_init(&priv
->hcmd_lock
);
7437 INIT_LIST_HEAD(&priv
->free_frames
);
7439 mutex_init(&priv
->mutex
);
7441 /* Clear the driver's (not device's) station table */
7442 iwl3945_clear_stations_table(priv
);
7444 priv
->data_retry_limit
= -1;
7445 priv
->ieee_channels
= NULL
;
7446 priv
->ieee_rates
= NULL
;
7447 priv
->band
= IEEE80211_BAND_2GHZ
;
7449 priv
->iw_mode
= NL80211_IFTYPE_STATION
;
7451 iwl_reset_qos(priv
);
7453 priv
->qos_data
.qos_active
= 0;
7454 priv
->qos_data
.qos_cap
.val
= 0;
7456 priv
->rates_mask
= IWL_RATES_MASK
;
7457 /* If power management is turned on, default to AC mode */
7458 priv
->power_mode
= IWL_POWER_AC
;
7459 priv
->user_txpower_limit
= IWL_DEFAULT_TX_POWER
;
7461 ret
= iwl3945_init_channel_map(priv
);
7463 IWL_ERR(priv
, "initializing regulatory failed: %d\n", ret
);
7467 ret
= iwl3945_init_geos(priv
);
7469 IWL_ERR(priv
, "initializing geos failed: %d\n", ret
);
7470 goto err_free_channel_map
;
7475 err_free_channel_map
:
7476 iwl3945_free_channel_map(priv
);
7481 static int iwl3945_pci_probe(struct pci_dev
*pdev
, const struct pci_device_id
*ent
)
7484 struct iwl_priv
*priv
;
7485 struct ieee80211_hw
*hw
;
7486 struct iwl_cfg
*cfg
= (struct iwl_cfg
*)(ent
->driver_data
);
7487 unsigned long flags
;
7489 /***********************
7490 * 1. Allocating HW data
7491 * ********************/
7493 /* mac80211 allocates memory for this device instance, including
7494 * space for this driver's private structure */
7495 hw
= iwl_alloc_all(cfg
, &iwl3945_hw_ops
);
7497 printk(KERN_ERR DRV_NAME
"Can not allocate network device\n");
7502 SET_IEEE80211_DEV(hw
, &pdev
->dev
);
7504 if ((iwl3945_mod_params
.num_of_queues
> IWL39_MAX_NUM_QUEUES
) ||
7505 (iwl3945_mod_params
.num_of_queues
< IWL_MIN_NUM_QUEUES
)) {
7507 "invalid queues_num, should be between %d and %d\n",
7508 IWL_MIN_NUM_QUEUES
, IWL39_MAX_NUM_QUEUES
);
7514 * Disabling hardware scan means that mac80211 will perform scans
7515 * "the hard way", rather than using device's scan.
7517 if (iwl3945_mod_params
.disable_hw_scan
) {
7518 IWL_DEBUG_INFO("Disabling hw_scan\n");
7519 iwl3945_hw_ops
.hw_scan
= NULL
;
7523 IWL_DEBUG_INFO("*** LOAD DRIVER ***\n");
7525 priv
->pci_dev
= pdev
;
7527 #ifdef CONFIG_IWL3945_DEBUG
7528 priv
->debug_level
= iwl3945_mod_params
.debug
;
7529 atomic_set(&priv
->restrict_refcnt
, 0);
7531 hw
->rate_control_algorithm
= "iwl-3945-rs";
7532 hw
->sta_data_size
= sizeof(struct iwl3945_sta_priv
);
7534 /* Select antenna (may be helpful if only one antenna is connected) */
7535 priv
->antenna
= (enum iwl3945_antenna
)iwl3945_mod_params
.antenna
;
7537 /* Tell mac80211 our characteristics */
7538 hw
->flags
= IEEE80211_HW_SIGNAL_DBM
|
7539 IEEE80211_HW_NOISE_DBM
;
7541 hw
->wiphy
->interface_modes
=
7542 BIT(NL80211_IFTYPE_STATION
) |
7543 BIT(NL80211_IFTYPE_ADHOC
);
7545 hw
->wiphy
->fw_handles_regulatory
= true;
7547 /* 4 EDCA QOS priorities */
7550 /***************************
7551 * 2. Initializing PCI bus
7552 * *************************/
7553 if (pci_enable_device(pdev
)) {
7555 goto out_ieee80211_free_hw
;
7558 pci_set_master(pdev
);
7560 err
= pci_set_dma_mask(pdev
, DMA_32BIT_MASK
);
7562 err
= pci_set_consistent_dma_mask(pdev
, DMA_32BIT_MASK
);
7564 IWL_WARN(priv
, "No suitable DMA available.\n");
7565 goto out_pci_disable_device
;
7568 pci_set_drvdata(pdev
, priv
);
7569 err
= pci_request_regions(pdev
, DRV_NAME
);
7571 goto out_pci_disable_device
;
7573 /***********************
7574 * 3. Read REV Register
7575 * ********************/
7576 priv
->hw_base
= pci_iomap(pdev
, 0, 0);
7577 if (!priv
->hw_base
) {
7579 goto out_pci_release_regions
;
7582 IWL_DEBUG_INFO("pci_resource_len = 0x%08llx\n",
7583 (unsigned long long) pci_resource_len(pdev
, 0));
7584 IWL_DEBUG_INFO("pci_resource_base = %p\n", priv
->hw_base
);
7586 /* We disable the RETRY_TIMEOUT register (0x41) to keep
7587 * PCI Tx retries from interfering with C3 CPU state */
7588 pci_write_config_byte(pdev
, 0x41, 0x00);
7591 err
= priv
->cfg
->ops
->lib
->apm_ops
.init(priv
);
7593 IWL_DEBUG_INFO("Failed to init APMG\n");
7597 /***********************
7599 * ********************/
7601 /* Read the EEPROM */
7602 err
= iwl3945_eeprom_init(priv
);
7604 IWL_ERR(priv
, "Unable to init EEPROM\n");
7605 goto out_remove_sysfs
;
7607 /* MAC Address location in EEPROM same for 3945/4965 */
7608 get_eeprom_mac(priv
, priv
->mac_addr
);
7609 IWL_DEBUG_INFO("MAC address: %pM\n", priv
->mac_addr
);
7610 SET_IEEE80211_PERM_ADDR(priv
->hw
, priv
->mac_addr
);
7612 /***********************
7613 * 5. Setup HW Constants
7614 * ********************/
7615 /* Device-specific setup */
7616 if (iwl3945_hw_set_hw_params(priv
)) {
7617 IWL_ERR(priv
, "failed to set hw settings\n");
7621 /***********************
7623 * ********************/
7625 err
= iwl3945_init_drv(priv
);
7627 IWL_ERR(priv
, "initializing driver failed\n");
7631 IWL_INFO(priv
, "Detected Intel Wireless WiFi Link %s\n",
7634 /***********************************
7635 * 7. Initialize Module Parameters
7636 * **********************************/
7638 /* Initialize module parameter values here */
7639 /* Disable radio (SW RF KILL) via parameter when loading driver */
7640 if (iwl3945_mod_params
.disable
) {
7641 set_bit(STATUS_RF_KILL_SW
, &priv
->status
);
7642 IWL_DEBUG_INFO("Radio disabled.\n");
7646 /***********************
7648 * ********************/
7650 spin_lock_irqsave(&priv
->lock
, flags
);
7651 iwl3945_disable_interrupts(priv
);
7652 spin_unlock_irqrestore(&priv
->lock
, flags
);
7654 err
= sysfs_create_group(&pdev
->dev
.kobj
, &iwl3945_attribute_group
);
7656 IWL_ERR(priv
, "failed to create sysfs device attributes\n");
7657 goto out_release_irq
;
7660 iwl3945_set_rxon_channel(priv
, IEEE80211_BAND_2GHZ
, 6);
7661 iwl3945_setup_deferred_work(priv
);
7662 iwl3945_setup_rx_handlers(priv
);
7664 /***********************
7666 * ********************/
7667 pci_save_state(pdev
);
7668 pci_disable_device(pdev
);
7670 /*********************************
7671 * 10. Setup and Register mac80211
7672 * *******************************/
7674 err
= ieee80211_register_hw(priv
->hw
);
7676 IWL_ERR(priv
, "Failed to register network device: %d\n", err
);
7677 goto out_remove_sysfs
;
7680 priv
->hw
->conf
.beacon_int
= 100;
7681 priv
->mac80211_registered
= 1;
7683 err
= iwl3945_rfkill_init(priv
);
7685 IWL_ERR(priv
, "Unable to initialize RFKILL system. "
7686 "Ignoring error: %d\n", err
);
7691 sysfs_remove_group(&pdev
->dev
.kobj
, &iwl3945_attribute_group
);
7693 iwl3945_free_geos(priv
);
7696 destroy_workqueue(priv
->workqueue
);
7697 priv
->workqueue
= NULL
;
7698 iwl3945_unset_hw_params(priv
);
7701 pci_iounmap(pdev
, priv
->hw_base
);
7702 out_pci_release_regions
:
7703 pci_release_regions(pdev
);
7704 out_pci_disable_device
:
7705 pci_disable_device(pdev
);
7706 pci_set_drvdata(pdev
, NULL
);
7707 out_ieee80211_free_hw
:
7708 ieee80211_free_hw(priv
->hw
);
7713 static void __devexit
iwl3945_pci_remove(struct pci_dev
*pdev
)
7715 struct iwl_priv
*priv
= pci_get_drvdata(pdev
);
7716 unsigned long flags
;
7721 IWL_DEBUG_INFO("*** UNLOAD DRIVER ***\n");
7723 set_bit(STATUS_EXIT_PENDING
, &priv
->status
);
7727 /* make sure we flush any pending irq or
7728 * tasklet for the driver
7730 spin_lock_irqsave(&priv
->lock
, flags
);
7731 iwl3945_disable_interrupts(priv
);
7732 spin_unlock_irqrestore(&priv
->lock
, flags
);
7734 iwl_synchronize_irq(priv
);
7736 sysfs_remove_group(&pdev
->dev
.kobj
, &iwl3945_attribute_group
);
7738 iwl3945_rfkill_unregister(priv
);
7739 iwl3945_dealloc_ucode_pci(priv
);
7742 iwl3945_rx_queue_free(priv
, &priv
->rxq
);
7743 iwl3945_hw_txq_ctx_free(priv
);
7745 iwl3945_unset_hw_params(priv
);
7746 iwl3945_clear_stations_table(priv
);
7748 if (priv
->mac80211_registered
)
7749 ieee80211_unregister_hw(priv
->hw
);
7751 /*netif_stop_queue(dev); */
7752 flush_workqueue(priv
->workqueue
);
7754 /* ieee80211_unregister_hw calls iwl3945_mac_stop, which flushes
7755 * priv->workqueue... so we can't take down the workqueue
7757 destroy_workqueue(priv
->workqueue
);
7758 priv
->workqueue
= NULL
;
7760 pci_iounmap(pdev
, priv
->hw_base
);
7761 pci_release_regions(pdev
);
7762 pci_disable_device(pdev
);
7763 pci_set_drvdata(pdev
, NULL
);
7765 iwl3945_free_channel_map(priv
);
7766 iwl3945_free_geos(priv
);
7767 kfree(priv
->scan39
);
7768 if (priv
->ibss_beacon
)
7769 dev_kfree_skb(priv
->ibss_beacon
);
7771 ieee80211_free_hw(priv
->hw
);
7776 static int iwl3945_pci_suspend(struct pci_dev
*pdev
, pm_message_t state
)
7778 struct iwl_priv
*priv
= pci_get_drvdata(pdev
);
7780 if (priv
->is_open
) {
7781 set_bit(STATUS_IN_SUSPEND
, &priv
->status
);
7782 iwl3945_mac_stop(priv
->hw
);
7786 pci_set_power_state(pdev
, PCI_D3hot
);
7791 static int iwl3945_pci_resume(struct pci_dev
*pdev
)
7793 struct iwl_priv
*priv
= pci_get_drvdata(pdev
);
7795 pci_set_power_state(pdev
, PCI_D0
);
7798 iwl3945_mac_start(priv
->hw
);
7800 clear_bit(STATUS_IN_SUSPEND
, &priv
->status
);
7804 #endif /* CONFIG_PM */
7806 /*************** RFKILL FUNCTIONS **********/
7807 #ifdef CONFIG_IWL3945_RFKILL
7808 /* software rf-kill from user */
7809 static int iwl3945_rfkill_soft_rf_kill(void *data
, enum rfkill_state state
)
7811 struct iwl_priv
*priv
= data
;
7817 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
7820 IWL_DEBUG_RF_KILL("we received soft RFKILL set to state %d\n", state
);
7821 mutex_lock(&priv
->mutex
);
7824 case RFKILL_STATE_UNBLOCKED
:
7825 if (iwl_is_rfkill_hw(priv
)) {
7829 iwl3945_radio_kill_sw(priv
, 0);
7831 case RFKILL_STATE_SOFT_BLOCKED
:
7832 iwl3945_radio_kill_sw(priv
, 1);
7835 IWL_WARN(priv
, "received unexpected RFKILL state %d\n", state
);
7839 mutex_unlock(&priv
->mutex
);
7844 int iwl3945_rfkill_init(struct iwl_priv
*priv
)
7846 struct device
*device
= wiphy_dev(priv
->hw
->wiphy
);
7849 BUG_ON(device
== NULL
);
7851 IWL_DEBUG_RF_KILL("Initializing RFKILL.\n");
7852 priv
->rfkill
= rfkill_allocate(device
, RFKILL_TYPE_WLAN
);
7853 if (!priv
->rfkill
) {
7854 IWL_ERR(priv
, "Unable to allocate rfkill device.\n");
7859 priv
->rfkill
->name
= priv
->cfg
->name
;
7860 priv
->rfkill
->data
= priv
;
7861 priv
->rfkill
->state
= RFKILL_STATE_UNBLOCKED
;
7862 priv
->rfkill
->toggle_radio
= iwl3945_rfkill_soft_rf_kill
;
7863 priv
->rfkill
->user_claim_unsupported
= 1;
7865 priv
->rfkill
->dev
.class->suspend
= NULL
;
7866 priv
->rfkill
->dev
.class->resume
= NULL
;
7868 ret
= rfkill_register(priv
->rfkill
);
7870 IWL_ERR(priv
, "Unable to register rfkill: %d\n", ret
);
7874 IWL_DEBUG_RF_KILL("RFKILL initialization complete.\n");
7878 if (priv
->rfkill
!= NULL
)
7879 rfkill_free(priv
->rfkill
);
7880 priv
->rfkill
= NULL
;
7883 IWL_DEBUG_RF_KILL("RFKILL initialization complete.\n");
7887 void iwl3945_rfkill_unregister(struct iwl_priv
*priv
)
7890 rfkill_unregister(priv
->rfkill
);
7892 priv
->rfkill
= NULL
;
7895 /* set rf-kill to the right state. */
7896 void iwl3945_rfkill_set_hw_state(struct iwl_priv
*priv
)
7902 if (iwl_is_rfkill_hw(priv
)) {
7903 rfkill_force_state(priv
->rfkill
, RFKILL_STATE_HARD_BLOCKED
);
7907 if (!iwl_is_rfkill_sw(priv
))
7908 rfkill_force_state(priv
->rfkill
, RFKILL_STATE_UNBLOCKED
);
7910 rfkill_force_state(priv
->rfkill
, RFKILL_STATE_SOFT_BLOCKED
);
7914 /*****************************************************************************
7916 * driver and module entry point
7918 *****************************************************************************/
7920 static struct pci_driver iwl3945_driver
= {
7922 .id_table
= iwl3945_hw_card_ids
,
7923 .probe
= iwl3945_pci_probe
,
7924 .remove
= __devexit_p(iwl3945_pci_remove
),
7926 .suspend
= iwl3945_pci_suspend
,
7927 .resume
= iwl3945_pci_resume
,
7931 static int __init
iwl3945_init(void)
7935 printk(KERN_INFO DRV_NAME
": " DRV_DESCRIPTION
", " DRV_VERSION
"\n");
7936 printk(KERN_INFO DRV_NAME
": " DRV_COPYRIGHT
"\n");
7938 ret
= iwl3945_rate_control_register();
7940 printk(KERN_ERR DRV_NAME
7941 "Unable to register rate control algorithm: %d\n", ret
);
7945 ret
= pci_register_driver(&iwl3945_driver
);
7947 printk(KERN_ERR DRV_NAME
"Unable to initialize PCI module\n");
7948 goto error_register
;
7954 iwl3945_rate_control_unregister();
7958 static void __exit
iwl3945_exit(void)
7960 pci_unregister_driver(&iwl3945_driver
);
7961 iwl3945_rate_control_unregister();
7964 MODULE_FIRMWARE(IWL3945_MODULE_FIRMWARE(IWL3945_UCODE_API_MAX
));
7966 module_param_named(antenna
, iwl3945_mod_params
.antenna
, int, 0444);
7967 MODULE_PARM_DESC(antenna
, "select antenna (1=Main, 2=Aux, default 0 [both])");
7968 module_param_named(disable
, iwl3945_mod_params
.disable
, int, 0444);
7969 MODULE_PARM_DESC(disable
, "manually disable the radio (default 0 [radio on])");
7970 module_param_named(hwcrypto
, iwl3945_mod_params
.sw_crypto
, int, 0444);
7971 MODULE_PARM_DESC(hwcrypto
,
7972 "using hardware crypto engine (default 0 [software])\n");
7973 module_param_named(debug
, iwl3945_mod_params
.debug
, uint
, 0444);
7974 MODULE_PARM_DESC(debug
, "debug output mask");
7975 module_param_named(disable_hw_scan
, iwl3945_mod_params
.disable_hw_scan
, int, 0444);
7976 MODULE_PARM_DESC(disable_hw_scan
, "disable hardware scanning (default 0)");
7978 module_param_named(queues_num
, iwl3945_mod_params
.num_of_queues
, int, 0444);
7979 MODULE_PARM_DESC(queues_num
, "number of hw queues.");
7981 module_exit(iwl3945_exit
);
7982 module_init(iwl3945_init
);