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"
52 #include "iwl-3945-fh.h"
53 #include "iwl-commands.h"
55 #include "iwl-helpers.h"
59 static int iwl3945_tx_queue_update_write_ptr(struct iwl_priv
*priv
,
60 struct iwl_tx_queue
*txq
);
63 * module name, copyright, version, etc.
66 #define DRV_DESCRIPTION \
67 "Intel(R) PRO/Wireless 3945ABG/BG Network Connection driver for Linux"
69 #ifdef CONFIG_IWL3945_DEBUG
75 #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT
81 #define IWL39_VERSION "1.2.26k" VD VS
82 #define DRV_COPYRIGHT "Copyright(c) 2003-2008 Intel Corporation"
83 #define DRV_AUTHOR "<ilw@linux.intel.com>"
84 #define DRV_VERSION IWL39_VERSION
87 MODULE_DESCRIPTION(DRV_DESCRIPTION
);
88 MODULE_VERSION(DRV_VERSION
);
89 MODULE_AUTHOR(DRV_COPYRIGHT
" " DRV_AUTHOR
);
90 MODULE_LICENSE("GPL");
92 /* module parameters */
93 struct iwl_mod_params iwl3945_mod_params
= {
94 .num_of_queues
= IWL39_MAX_NUM_QUEUES
,
95 /* the rest are 0 by default */
98 /*************** DMA-QUEUE-GENERAL-FUNCTIONS *****
101 * Theory of operation
103 * A Tx or Rx queue resides in host DRAM, and is comprised of a circular buffer
104 * of buffer descriptors, each of which points to one or more data buffers for
105 * the device to read from or fill. Driver and device exchange status of each
106 * queue via "read" and "write" pointers. Driver keeps minimum of 2 empty
107 * entries in each circular buffer, to protect against confusing empty and full
110 * The device reads or writes the data in the queues via the device's several
111 * DMA/FIFO channels. Each queue is mapped to a single DMA channel.
113 * For Tx queue, there are low mark and high mark limits. If, after queuing
114 * the packet for Tx, free space become < low mark, Tx queue stopped. When
115 * reclaiming packets (on 'tx done IRQ), if free space become > high mark,
118 * The 3945 operates with six queues: One receive queue, one transmit queue
119 * (#4) for sending commands to the device firmware, and four transmit queues
120 * (#0-3) for data tx via EDCA. An additional 2 HCCA queues are unused.
121 ***************************************************/
123 int iwl3945_x2_queue_used(const struct iwl_queue
*q
, int i
)
125 return q
->write_ptr
> q
->read_ptr
?
126 (i
>= q
->read_ptr
&& i
< q
->write_ptr
) :
127 !(i
< q
->read_ptr
&& i
>= q
->write_ptr
);
131 * iwl3945_queue_init - Initialize queue's high/low-water and read/write indexes
133 static int iwl3945_queue_init(struct iwl_priv
*priv
, struct iwl_queue
*q
,
134 int count
, int slots_num
, u32 id
)
137 q
->n_window
= slots_num
;
140 /* count must be power-of-two size, otherwise iwl_queue_inc_wrap
141 * and iwl_queue_dec_wrap are broken. */
142 BUG_ON(!is_power_of_2(count
));
144 /* slots_num must be power-of-two size, otherwise
145 * get_cmd_index is broken. */
146 BUG_ON(!is_power_of_2(slots_num
));
148 q
->low_mark
= q
->n_window
/ 4;
152 q
->high_mark
= q
->n_window
/ 8;
153 if (q
->high_mark
< 2)
156 q
->write_ptr
= q
->read_ptr
= 0;
162 * iwl3945_tx_queue_alloc - Alloc driver data and TFD CB for one Tx/cmd queue
164 static int iwl3945_tx_queue_alloc(struct iwl_priv
*priv
,
165 struct iwl_tx_queue
*txq
, u32 id
)
167 struct pci_dev
*dev
= priv
->pci_dev
;
169 /* Driver private data, only for Tx (not command) queues,
170 * not shared with device. */
171 if (id
!= IWL_CMD_QUEUE_NUM
) {
172 txq
->txb
= kmalloc(sizeof(txq
->txb
[0]) *
173 TFD_QUEUE_SIZE_MAX
, GFP_KERNEL
);
175 IWL_ERR(priv
, "kmalloc for auxiliary BD "
176 "structures failed\n");
182 /* Circular buffer of transmit frame descriptors (TFDs),
183 * shared with device */
184 txq
->tfds39
= pci_alloc_consistent(dev
,
185 sizeof(txq
->tfds39
[0]) * TFD_QUEUE_SIZE_MAX
,
189 IWL_ERR(priv
, "pci_alloc_consistent(%zd) failed\n",
190 sizeof(txq
->tfds39
[0]) * TFD_QUEUE_SIZE_MAX
);
205 * iwl3945_tx_queue_init - Allocate and initialize one tx/cmd queue
207 int iwl3945_tx_queue_init(struct iwl_priv
*priv
,
208 struct iwl_tx_queue
*txq
, int slots_num
, u32 txq_id
)
214 * Alloc buffer array for commands (Tx or other types of commands).
215 * For the command queue (#4), allocate command space + one big
216 * command for scan, since scan command is very huge; the system will
217 * not have two scans at the same time, so only one is needed.
218 * For data Tx queues (all other queues), no super-size command
221 len
= sizeof(struct iwl_cmd
);
222 for (i
= 0; i
<= slots_num
; i
++) {
223 if (i
== slots_num
) {
224 if (txq_id
== IWL_CMD_QUEUE_NUM
)
225 len
+= IWL_MAX_SCAN_SIZE
;
230 txq
->cmd
[i
] = kmalloc(len
, GFP_KERNEL
);
235 /* Alloc driver data array and TFD circular buffer */
236 rc
= iwl3945_tx_queue_alloc(priv
, txq
, txq_id
);
240 txq
->need_update
= 0;
242 /* TFD_QUEUE_SIZE_MAX must be power-of-two size, otherwise
243 * iwl_queue_inc_wrap and iwl_queue_dec_wrap are broken. */
244 BUILD_BUG_ON(TFD_QUEUE_SIZE_MAX
& (TFD_QUEUE_SIZE_MAX
- 1));
246 /* Initialize queue high/low-water, head/tail indexes */
247 iwl3945_queue_init(priv
, &txq
->q
, TFD_QUEUE_SIZE_MAX
, slots_num
, txq_id
);
249 /* Tell device where to find queue, enable DMA channel. */
250 iwl3945_hw_tx_queue_init(priv
, txq
);
254 for (i
= 0; i
< slots_num
; i
++) {
259 if (txq_id
== IWL_CMD_QUEUE_NUM
) {
260 kfree(txq
->cmd
[slots_num
]);
261 txq
->cmd
[slots_num
] = NULL
;
267 * iwl3945_tx_queue_free - Deallocate DMA queue.
268 * @txq: Transmit queue to deallocate.
270 * Empty queue by removing and destroying all BD's.
272 * 0-fill, but do not free "txq" descriptor structure.
274 void iwl3945_tx_queue_free(struct iwl_priv
*priv
, struct iwl_tx_queue
*txq
)
276 struct iwl_queue
*q
= &txq
->q
;
277 struct pci_dev
*dev
= priv
->pci_dev
;
283 /* first, empty all BD's */
284 for (; q
->write_ptr
!= q
->read_ptr
;
285 q
->read_ptr
= iwl_queue_inc_wrap(q
->read_ptr
, q
->n_bd
))
286 iwl3945_hw_txq_free_tfd(priv
, txq
);
288 len
= sizeof(struct iwl_cmd
) * q
->n_window
;
289 if (q
->id
== IWL_CMD_QUEUE_NUM
)
290 len
+= IWL_MAX_SCAN_SIZE
;
292 /* De-alloc array of command/tx buffers */
293 for (i
= 0; i
< TFD_TX_CMD_SLOTS
; i
++)
296 /* De-alloc circular buffer of TFDs */
298 pci_free_consistent(dev
, sizeof(struct iwl3945_tfd
) *
299 txq
->q
.n_bd
, txq
->tfds39
, txq
->q
.dma_addr
);
301 /* De-alloc array of per-TFD driver data */
305 /* 0-fill queue descriptor structure */
306 memset(txq
, 0, sizeof(*txq
));
309 /*************** STATION TABLE MANAGEMENT ****
310 * mac80211 should be examined to determine if sta_info is duplicating
311 * the functionality provided here
314 /**************************************************************/
315 #if 0 /* temporary disable till we add real remove station */
317 * iwl3945_remove_station - Remove driver's knowledge of station.
319 * NOTE: This does not remove station from device's station table.
321 static u8
iwl3945_remove_station(struct iwl_priv
*priv
, const u8
*addr
, int is_ap
)
323 int index
= IWL_INVALID_STATION
;
327 spin_lock_irqsave(&priv
->sta_lock
, flags
);
331 else if (is_broadcast_ether_addr(addr
))
332 index
= priv
->hw_params
.bcast_sta_id
;
334 for (i
= IWL_STA_ID
; i
< priv
->hw_params
.max_stations
; i
++)
335 if (priv
->stations_39
[i
].used
&&
336 !compare_ether_addr(priv
->stations_39
[i
].sta
.sta
.addr
,
342 if (unlikely(index
== IWL_INVALID_STATION
))
345 if (priv
->stations_39
[index
].used
) {
346 priv
->stations_39
[index
].used
= 0;
347 priv
->num_stations
--;
350 BUG_ON(priv
->num_stations
< 0);
353 spin_unlock_irqrestore(&priv
->sta_lock
, flags
);
359 * iwl3945_clear_stations_table - Clear the driver's station table
361 * NOTE: This does not clear or otherwise alter the device's station table.
363 static void iwl3945_clear_stations_table(struct iwl_priv
*priv
)
367 spin_lock_irqsave(&priv
->sta_lock
, flags
);
369 priv
->num_stations
= 0;
370 memset(priv
->stations_39
, 0, sizeof(priv
->stations_39
));
372 spin_unlock_irqrestore(&priv
->sta_lock
, flags
);
376 * iwl3945_add_station - Add station to station tables in driver and device
378 u8
iwl3945_add_station(struct iwl_priv
*priv
, const u8
*addr
, int is_ap
, u8 flags
)
381 int index
= IWL_INVALID_STATION
;
382 struct iwl3945_station_entry
*station
;
383 unsigned long flags_spin
;
386 spin_lock_irqsave(&priv
->sta_lock
, flags_spin
);
389 else if (is_broadcast_ether_addr(addr
))
390 index
= priv
->hw_params
.bcast_sta_id
;
392 for (i
= IWL_STA_ID
; i
< priv
->hw_params
.max_stations
; i
++) {
393 if (!compare_ether_addr(priv
->stations_39
[i
].sta
.sta
.addr
,
399 if (!priv
->stations_39
[i
].used
&&
400 index
== IWL_INVALID_STATION
)
404 /* These two conditions has the same outcome but keep them separate
405 since they have different meaning */
406 if (unlikely(index
== IWL_INVALID_STATION
)) {
407 spin_unlock_irqrestore(&priv
->sta_lock
, flags_spin
);
411 if (priv
->stations_39
[index
].used
&&
412 !compare_ether_addr(priv
->stations_39
[index
].sta
.sta
.addr
, addr
)) {
413 spin_unlock_irqrestore(&priv
->sta_lock
, flags_spin
);
417 IWL_DEBUG_ASSOC("Add STA ID %d: %pM\n", index
, addr
);
418 station
= &priv
->stations_39
[index
];
420 priv
->num_stations
++;
422 /* Set up the REPLY_ADD_STA command to send to device */
423 memset(&station
->sta
, 0, sizeof(struct iwl3945_addsta_cmd
));
424 memcpy(station
->sta
.sta
.addr
, addr
, ETH_ALEN
);
425 station
->sta
.mode
= 0;
426 station
->sta
.sta
.sta_id
= index
;
427 station
->sta
.station_flags
= 0;
429 if (priv
->band
== IEEE80211_BAND_5GHZ
)
430 rate
= IWL_RATE_6M_PLCP
;
432 rate
= IWL_RATE_1M_PLCP
;
434 /* Turn on both antennas for the station... */
435 station
->sta
.rate_n_flags
=
436 iwl3945_hw_set_rate_n_flags(rate
, RATE_MCS_ANT_AB_MSK
);
438 spin_unlock_irqrestore(&priv
->sta_lock
, flags_spin
);
440 /* Add station to device's station table */
441 iwl3945_send_add_station(priv
, &station
->sta
, flags
);
447 /*************** HOST COMMAND QUEUE FUNCTIONS *****/
449 #define IWL_CMD(x) case x: return #x
450 #define HOST_COMPLETE_TIMEOUT (HZ / 2)
453 * iwl3945_enqueue_hcmd - enqueue a uCode command
454 * @priv: device private data point
455 * @cmd: a point to the ucode command structure
457 * The function returns < 0 values to indicate the operation is
458 * failed. On success, it turns the index (> 0) of command in the
461 static int iwl3945_enqueue_hcmd(struct iwl_priv
*priv
, struct iwl_host_cmd
*cmd
)
463 struct iwl_tx_queue
*txq
= &priv
->txq
[IWL_CMD_QUEUE_NUM
];
464 struct iwl_queue
*q
= &txq
->q
;
465 struct iwl3945_tfd
*tfd
;
466 struct iwl_cmd
*out_cmd
;
468 u16 fix_size
= (u16
)(cmd
->len
+ sizeof(out_cmd
->hdr
));
469 dma_addr_t phys_addr
;
474 /* If any of the command structures end up being larger than
475 * the TFD_MAX_PAYLOAD_SIZE, and it sent as a 'small' command then
476 * we will need to increase the size of the TFD entries */
477 BUG_ON((fix_size
> TFD_MAX_PAYLOAD_SIZE
) &&
478 !(cmd
->meta
.flags
& CMD_SIZE_HUGE
));
481 if (iwl_is_rfkill(priv
)) {
482 IWL_DEBUG_INFO("Not sending command - RF KILL");
486 if (iwl_queue_space(q
) < ((cmd
->meta
.flags
& CMD_ASYNC
) ? 2 : 1)) {
487 IWL_ERR(priv
, "No space for Tx\n");
491 spin_lock_irqsave(&priv
->hcmd_lock
, flags
);
493 tfd
= &txq
->tfds39
[q
->write_ptr
];
494 memset(tfd
, 0, sizeof(*tfd
));
496 idx
= get_cmd_index(q
, q
->write_ptr
, cmd
->meta
.flags
& CMD_SIZE_HUGE
);
497 out_cmd
= txq
->cmd
[idx
];
499 out_cmd
->hdr
.cmd
= cmd
->id
;
500 memcpy(&out_cmd
->meta
, &cmd
->meta
, sizeof(cmd
->meta
));
501 memcpy(&out_cmd
->cmd
.payload
, cmd
->data
, cmd
->len
);
503 /* At this point, the out_cmd now has all of the incoming cmd
506 out_cmd
->hdr
.flags
= 0;
507 out_cmd
->hdr
.sequence
= cpu_to_le16(QUEUE_TO_SEQ(IWL_CMD_QUEUE_NUM
) |
508 INDEX_TO_SEQ(q
->write_ptr
));
509 if (out_cmd
->meta
.flags
& CMD_SIZE_HUGE
)
510 out_cmd
->hdr
.sequence
|= SEQ_HUGE_FRAME
;
512 len
= (idx
== TFD_CMD_SLOTS
) ?
513 IWL_MAX_SCAN_SIZE
: sizeof(struct iwl_cmd
);
515 phys_addr
= pci_map_single(priv
->pci_dev
, out_cmd
,
516 len
, PCI_DMA_TODEVICE
);
517 pci_unmap_addr_set(&out_cmd
->meta
, mapping
, phys_addr
);
518 pci_unmap_len_set(&out_cmd
->meta
, len
, len
);
519 phys_addr
+= offsetof(struct iwl_cmd
, hdr
);
521 iwl3945_hw_txq_attach_buf_to_tfd(priv
, tfd
, phys_addr
, fix_size
);
523 pad
= U32_PAD(cmd
->len
);
524 tfd
->control_flags
|= cpu_to_le32(TFD_CTL_PAD_SET(pad
));
526 IWL_DEBUG_HC("Sending command %s (#%x), seq: 0x%04X, "
527 "%d bytes at %d[%d]:%d\n",
528 get_cmd_string(out_cmd
->hdr
.cmd
),
529 out_cmd
->hdr
.cmd
, le16_to_cpu(out_cmd
->hdr
.sequence
),
530 fix_size
, q
->write_ptr
, idx
, IWL_CMD_QUEUE_NUM
);
532 txq
->need_update
= 1;
534 /* Increment and update queue's write index */
535 q
->write_ptr
= iwl_queue_inc_wrap(q
->write_ptr
, q
->n_bd
);
536 ret
= iwl3945_tx_queue_update_write_ptr(priv
, txq
);
538 spin_unlock_irqrestore(&priv
->hcmd_lock
, flags
);
539 return ret
? ret
: idx
;
542 static int iwl3945_send_cmd_async(struct iwl_priv
*priv
,
543 struct iwl_host_cmd
*cmd
)
547 BUG_ON(!(cmd
->meta
.flags
& CMD_ASYNC
));
549 /* An asynchronous command can not expect an SKB to be set. */
550 BUG_ON(cmd
->meta
.flags
& CMD_WANT_SKB
);
552 /* An asynchronous command MUST have a callback. */
553 BUG_ON(!cmd
->meta
.u
.callback
);
555 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
558 ret
= iwl3945_enqueue_hcmd(priv
, cmd
);
561 "Error sending %s: iwl3945_enqueue_hcmd failed: %d\n",
562 get_cmd_string(cmd
->id
), ret
);
568 static int iwl3945_send_cmd_sync(struct iwl_priv
*priv
,
569 struct iwl_host_cmd
*cmd
)
574 BUG_ON(cmd
->meta
.flags
& CMD_ASYNC
);
576 /* A synchronous command can not have a callback set. */
577 BUG_ON(cmd
->meta
.u
.callback
!= NULL
);
579 if (test_and_set_bit(STATUS_HCMD_SYNC_ACTIVE
, &priv
->status
)) {
581 "Error sending %s: Already sending a host command\n",
582 get_cmd_string(cmd
->id
));
587 set_bit(STATUS_HCMD_ACTIVE
, &priv
->status
);
589 if (cmd
->meta
.flags
& CMD_WANT_SKB
)
590 cmd
->meta
.source
= &cmd
->meta
;
592 cmd_idx
= iwl3945_enqueue_hcmd(priv
, cmd
);
596 "Error sending %s: iwl3945_enqueue_hcmd failed: %d\n",
597 get_cmd_string(cmd
->id
), ret
);
601 ret
= wait_event_interruptible_timeout(priv
->wait_command_queue
,
602 !test_bit(STATUS_HCMD_ACTIVE
, &priv
->status
),
603 HOST_COMPLETE_TIMEOUT
);
605 if (test_bit(STATUS_HCMD_ACTIVE
, &priv
->status
)) {
606 IWL_ERR(priv
, "Error sending %s: time out after %dms\n",
607 get_cmd_string(cmd
->id
),
608 jiffies_to_msecs(HOST_COMPLETE_TIMEOUT
));
610 clear_bit(STATUS_HCMD_ACTIVE
, &priv
->status
);
616 if (test_bit(STATUS_RF_KILL_HW
, &priv
->status
)) {
617 IWL_DEBUG_INFO("Command %s aborted: RF KILL Switch\n",
618 get_cmd_string(cmd
->id
));
622 if (test_bit(STATUS_FW_ERROR
, &priv
->status
)) {
623 IWL_DEBUG_INFO("Command %s failed: FW Error\n",
624 get_cmd_string(cmd
->id
));
628 if ((cmd
->meta
.flags
& CMD_WANT_SKB
) && !cmd
->meta
.u
.skb
) {
629 IWL_ERR(priv
, "Error: Response NULL in '%s'\n",
630 get_cmd_string(cmd
->id
));
639 if (cmd
->meta
.flags
& CMD_WANT_SKB
) {
640 struct iwl_cmd
*qcmd
;
642 /* Cancel the CMD_WANT_SKB flag for the cmd in the
643 * TX cmd queue. Otherwise in case the cmd comes
644 * in later, it will possibly set an invalid
645 * address (cmd->meta.source). */
646 qcmd
= priv
->txq
[IWL_CMD_QUEUE_NUM
].cmd
[cmd_idx
];
647 qcmd
->meta
.flags
&= ~CMD_WANT_SKB
;
650 if (cmd
->meta
.u
.skb
) {
651 dev_kfree_skb_any(cmd
->meta
.u
.skb
);
652 cmd
->meta
.u
.skb
= NULL
;
655 clear_bit(STATUS_HCMD_SYNC_ACTIVE
, &priv
->status
);
659 int iwl3945_send_cmd(struct iwl_priv
*priv
, struct iwl_host_cmd
*cmd
)
661 if (cmd
->meta
.flags
& CMD_ASYNC
)
662 return iwl3945_send_cmd_async(priv
, cmd
);
664 return iwl3945_send_cmd_sync(priv
, cmd
);
667 int iwl3945_send_cmd_pdu(struct iwl_priv
*priv
, u8 id
, u16 len
, const void *data
)
669 struct iwl_host_cmd cmd
= {
675 return iwl3945_send_cmd_sync(priv
, &cmd
);
678 static int __must_check
iwl3945_send_cmd_u32(struct iwl_priv
*priv
, u8 id
, u32 val
)
680 struct iwl_host_cmd cmd
= {
686 return iwl3945_send_cmd_sync(priv
, &cmd
);
689 int iwl3945_send_statistics_request(struct iwl_priv
*priv
)
691 return iwl3945_send_cmd_u32(priv
, REPLY_STATISTICS_CMD
, 0);
695 * iwl3945_set_rxon_channel - Set the phymode and channel values in staging RXON
696 * @band: 2.4 or 5 GHz band
697 * @channel: Any channel valid for the requested band
699 * In addition to setting the staging RXON, priv->band is also set.
701 * NOTE: Does not commit to the hardware; it sets appropriate bit fields
702 * in the staging RXON flag structure based on the band
704 static int iwl3945_set_rxon_channel(struct iwl_priv
*priv
,
705 enum ieee80211_band band
,
708 if (!iwl3945_get_channel_info(priv
, band
, channel
)) {
709 IWL_DEBUG_INFO("Could not set channel to %d [%d]\n",
714 if ((le16_to_cpu(priv
->staging39_rxon
.channel
) == channel
) &&
715 (priv
->band
== band
))
718 priv
->staging39_rxon
.channel
= cpu_to_le16(channel
);
719 if (band
== IEEE80211_BAND_5GHZ
)
720 priv
->staging39_rxon
.flags
&= ~RXON_FLG_BAND_24G_MSK
;
722 priv
->staging39_rxon
.flags
|= RXON_FLG_BAND_24G_MSK
;
726 IWL_DEBUG_INFO("Staging channel set to %d [%d]\n", channel
, band
);
732 * iwl3945_check_rxon_cmd - validate RXON structure is valid
734 * NOTE: This is really only useful during development and can eventually
735 * be #ifdef'd out once the driver is stable and folks aren't actively
738 static int iwl3945_check_rxon_cmd(struct iwl_priv
*priv
)
742 struct iwl3945_rxon_cmd
*rxon
= &priv
->staging39_rxon
;
744 if (rxon
->flags
& RXON_FLG_BAND_24G_MSK
) {
745 error
|= le32_to_cpu(rxon
->flags
&
746 (RXON_FLG_TGJ_NARROW_BAND_MSK
|
747 RXON_FLG_RADAR_DETECT_MSK
));
749 IWL_WARN(priv
, "check 24G fields %d | %d\n",
752 error
|= (rxon
->flags
& RXON_FLG_SHORT_SLOT_MSK
) ?
753 0 : le32_to_cpu(RXON_FLG_SHORT_SLOT_MSK
);
755 IWL_WARN(priv
, "check 52 fields %d | %d\n",
757 error
|= le32_to_cpu(rxon
->flags
& RXON_FLG_CCK_MSK
);
759 IWL_WARN(priv
, "check 52 CCK %d | %d\n",
762 error
|= (rxon
->node_addr
[0] | rxon
->bssid_addr
[0]) & 0x1;
764 IWL_WARN(priv
, "check mac addr %d | %d\n", counter
++, error
);
766 /* make sure basic rates 6Mbps and 1Mbps are supported */
767 error
|= (((rxon
->ofdm_basic_rates
& IWL_RATE_6M_MASK
) == 0) &&
768 ((rxon
->cck_basic_rates
& IWL_RATE_1M_MASK
) == 0));
770 IWL_WARN(priv
, "check basic rate %d | %d\n", counter
++, error
);
772 error
|= (le16_to_cpu(rxon
->assoc_id
) > 2007);
774 IWL_WARN(priv
, "check assoc id %d | %d\n", counter
++, error
);
776 error
|= ((rxon
->flags
& (RXON_FLG_CCK_MSK
| RXON_FLG_SHORT_SLOT_MSK
))
777 == (RXON_FLG_CCK_MSK
| RXON_FLG_SHORT_SLOT_MSK
));
779 IWL_WARN(priv
, "check CCK and short slot %d | %d\n",
782 error
|= ((rxon
->flags
& (RXON_FLG_CCK_MSK
| RXON_FLG_AUTO_DETECT_MSK
))
783 == (RXON_FLG_CCK_MSK
| RXON_FLG_AUTO_DETECT_MSK
));
785 IWL_WARN(priv
, "check CCK & auto detect %d | %d\n",
788 error
|= ((rxon
->flags
& (RXON_FLG_AUTO_DETECT_MSK
|
789 RXON_FLG_TGG_PROTECT_MSK
)) == RXON_FLG_TGG_PROTECT_MSK
);
791 IWL_WARN(priv
, "check TGG and auto detect %d | %d\n",
794 if ((rxon
->flags
& RXON_FLG_DIS_DIV_MSK
))
795 error
|= ((rxon
->flags
& (RXON_FLG_ANT_B_MSK
|
796 RXON_FLG_ANT_A_MSK
)) == 0);
798 IWL_WARN(priv
, "check antenna %d %d\n", counter
++, error
);
801 IWL_WARN(priv
, "Tuning to channel %d\n",
802 le16_to_cpu(rxon
->channel
));
805 IWL_ERR(priv
, "Not a valid rxon_assoc_cmd field values\n");
812 * iwl3945_full_rxon_required - check if full RXON (vs RXON_ASSOC) cmd is needed
813 * @priv: staging_rxon is compared to active_rxon
815 * If the RXON structure is changing enough to require a new tune,
816 * or is clearing the RXON_FILTER_ASSOC_MSK, then return 1 to indicate that
817 * a new tune (full RXON command, rather than RXON_ASSOC cmd) is required.
819 static int iwl3945_full_rxon_required(struct iwl_priv
*priv
)
822 /* These items are only settable from the full RXON command */
823 if (!(iwl3945_is_associated(priv
)) ||
824 compare_ether_addr(priv
->staging39_rxon
.bssid_addr
,
825 priv
->active39_rxon
.bssid_addr
) ||
826 compare_ether_addr(priv
->staging39_rxon
.node_addr
,
827 priv
->active39_rxon
.node_addr
) ||
828 compare_ether_addr(priv
->staging39_rxon
.wlap_bssid_addr
,
829 priv
->active39_rxon
.wlap_bssid_addr
) ||
830 (priv
->staging39_rxon
.dev_type
!= priv
->active39_rxon
.dev_type
) ||
831 (priv
->staging39_rxon
.channel
!= priv
->active39_rxon
.channel
) ||
832 (priv
->staging39_rxon
.air_propagation
!=
833 priv
->active39_rxon
.air_propagation
) ||
834 (priv
->staging39_rxon
.assoc_id
!= priv
->active39_rxon
.assoc_id
))
837 /* flags, filter_flags, ofdm_basic_rates, and cck_basic_rates can
838 * be updated with the RXON_ASSOC command -- however only some
839 * flag transitions are allowed using RXON_ASSOC */
841 /* Check if we are not switching bands */
842 if ((priv
->staging39_rxon
.flags
& RXON_FLG_BAND_24G_MSK
) !=
843 (priv
->active39_rxon
.flags
& RXON_FLG_BAND_24G_MSK
))
846 /* Check if we are switching association toggle */
847 if ((priv
->staging39_rxon
.filter_flags
& RXON_FILTER_ASSOC_MSK
) !=
848 (priv
->active39_rxon
.filter_flags
& RXON_FILTER_ASSOC_MSK
))
854 static int iwl3945_send_rxon_assoc(struct iwl_priv
*priv
)
857 struct iwl_rx_packet
*res
= NULL
;
858 struct iwl3945_rxon_assoc_cmd rxon_assoc
;
859 struct iwl_host_cmd cmd
= {
860 .id
= REPLY_RXON_ASSOC
,
861 .len
= sizeof(rxon_assoc
),
862 .meta
.flags
= CMD_WANT_SKB
,
865 const struct iwl3945_rxon_cmd
*rxon1
= &priv
->staging39_rxon
;
866 const struct iwl3945_rxon_cmd
*rxon2
= &priv
->active39_rxon
;
868 if ((rxon1
->flags
== rxon2
->flags
) &&
869 (rxon1
->filter_flags
== rxon2
->filter_flags
) &&
870 (rxon1
->cck_basic_rates
== rxon2
->cck_basic_rates
) &&
871 (rxon1
->ofdm_basic_rates
== rxon2
->ofdm_basic_rates
)) {
872 IWL_DEBUG_INFO("Using current RXON_ASSOC. Not resending.\n");
876 rxon_assoc
.flags
= priv
->staging39_rxon
.flags
;
877 rxon_assoc
.filter_flags
= priv
->staging39_rxon
.filter_flags
;
878 rxon_assoc
.ofdm_basic_rates
= priv
->staging39_rxon
.ofdm_basic_rates
;
879 rxon_assoc
.cck_basic_rates
= priv
->staging39_rxon
.cck_basic_rates
;
880 rxon_assoc
.reserved
= 0;
882 rc
= iwl3945_send_cmd_sync(priv
, &cmd
);
886 res
= (struct iwl_rx_packet
*)cmd
.meta
.u
.skb
->data
;
887 if (res
->hdr
.flags
& IWL_CMD_FAILED_MSK
) {
888 IWL_ERR(priv
, "Bad return from REPLY_RXON_ASSOC command\n");
892 priv
->alloc_rxb_skb
--;
893 dev_kfree_skb_any(cmd
.meta
.u
.skb
);
899 * iwl3945_commit_rxon - commit staging_rxon to hardware
901 * The RXON command in staging_rxon is committed to the hardware and
902 * the active_rxon structure is updated with the new data. This
903 * function correctly transitions out of the RXON_ASSOC_MSK state if
904 * a HW tune is required based on the RXON structure changes.
906 static int iwl3945_commit_rxon(struct iwl_priv
*priv
)
908 /* cast away the const for active_rxon in this function */
909 struct iwl3945_rxon_cmd
*active_rxon
= (void *)&priv
->active39_rxon
;
912 if (!iwl_is_alive(priv
))
915 /* always get timestamp with Rx frame */
916 priv
->staging39_rxon
.flags
|= RXON_FLG_TSF2HOST_MSK
;
919 priv
->staging39_rxon
.flags
&=
920 ~(RXON_FLG_DIS_DIV_MSK
| RXON_FLG_ANT_SEL_MSK
);
921 priv
->staging39_rxon
.flags
|= iwl3945_get_antenna_flags(priv
);
923 rc
= iwl3945_check_rxon_cmd(priv
);
925 IWL_ERR(priv
, "Invalid RXON configuration. Not committing.\n");
929 /* If we don't need to send a full RXON, we can use
930 * iwl3945_rxon_assoc_cmd which is used to reconfigure filter
931 * and other flags for the current radio configuration. */
932 if (!iwl3945_full_rxon_required(priv
)) {
933 rc
= iwl3945_send_rxon_assoc(priv
);
935 IWL_ERR(priv
, "Error setting RXON_ASSOC "
936 "configuration (%d).\n", rc
);
940 memcpy(active_rxon
, &priv
->staging39_rxon
, sizeof(*active_rxon
));
945 /* If we are currently associated and the new config requires
946 * an RXON_ASSOC and the new config wants the associated mask enabled,
947 * we must clear the associated from the active configuration
948 * before we apply the new config */
949 if (iwl3945_is_associated(priv
) &&
950 (priv
->staging39_rxon
.filter_flags
& RXON_FILTER_ASSOC_MSK
)) {
951 IWL_DEBUG_INFO("Toggling associated bit on current RXON\n");
952 active_rxon
->filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
954 rc
= iwl3945_send_cmd_pdu(priv
, REPLY_RXON
,
955 sizeof(struct iwl3945_rxon_cmd
),
956 &priv
->active39_rxon
);
958 /* If the mask clearing failed then we set
959 * active_rxon back to what it was previously */
961 active_rxon
->filter_flags
|= RXON_FILTER_ASSOC_MSK
;
962 IWL_ERR(priv
, "Error clearing ASSOC_MSK on current "
963 "configuration (%d).\n", rc
);
968 IWL_DEBUG_INFO("Sending RXON\n"
969 "* with%s RXON_FILTER_ASSOC_MSK\n"
972 ((priv
->staging39_rxon
.filter_flags
&
973 RXON_FILTER_ASSOC_MSK
) ? "" : "out"),
974 le16_to_cpu(priv
->staging39_rxon
.channel
),
975 priv
->staging_rxon
.bssid_addr
);
977 /* Apply the new configuration */
978 rc
= iwl3945_send_cmd_pdu(priv
, REPLY_RXON
,
979 sizeof(struct iwl3945_rxon_cmd
), &priv
->staging39_rxon
);
981 IWL_ERR(priv
, "Error setting new configuration (%d).\n", rc
);
985 memcpy(active_rxon
, &priv
->staging39_rxon
, sizeof(*active_rxon
));
987 iwl3945_clear_stations_table(priv
);
989 /* If we issue a new RXON command which required a tune then we must
990 * send a new TXPOWER command or we won't be able to Tx any frames */
991 rc
= iwl3945_hw_reg_send_txpower(priv
);
993 IWL_ERR(priv
, "Error setting Tx power (%d).\n", rc
);
997 /* Add the broadcast address so we can send broadcast frames */
998 if (iwl3945_add_station(priv
, iwl_bcast_addr
, 0, 0) ==
999 IWL_INVALID_STATION
) {
1000 IWL_ERR(priv
, "Error adding BROADCAST address for transmit.\n");
1004 /* If we have set the ASSOC_MSK and we are in BSS mode then
1005 * add the IWL_AP_ID to the station rate table */
1006 if (iwl3945_is_associated(priv
) &&
1007 (priv
->iw_mode
== NL80211_IFTYPE_STATION
))
1008 if (iwl3945_add_station(priv
, priv
->active39_rxon
.bssid_addr
, 1, 0)
1009 == IWL_INVALID_STATION
) {
1010 IWL_ERR(priv
, "Error adding AP address for transmit\n");
1014 /* Init the hardware's rate fallback order based on the band */
1015 rc
= iwl3945_init_hw_rate_table(priv
);
1017 IWL_ERR(priv
, "Error setting HW rate table: %02X\n", rc
);
1024 static int iwl3945_send_bt_config(struct iwl_priv
*priv
)
1026 struct iwl_bt_cmd bt_cmd
= {
1034 return iwl3945_send_cmd_pdu(priv
, REPLY_BT_CONFIG
,
1035 sizeof(bt_cmd
), &bt_cmd
);
1038 static int iwl3945_send_scan_abort(struct iwl_priv
*priv
)
1041 struct iwl_rx_packet
*res
;
1042 struct iwl_host_cmd cmd
= {
1043 .id
= REPLY_SCAN_ABORT_CMD
,
1044 .meta
.flags
= CMD_WANT_SKB
,
1047 /* If there isn't a scan actively going on in the hardware
1048 * then we are in between scan bands and not actually
1049 * actively scanning, so don't send the abort command */
1050 if (!test_bit(STATUS_SCAN_HW
, &priv
->status
)) {
1051 clear_bit(STATUS_SCAN_ABORTING
, &priv
->status
);
1055 rc
= iwl3945_send_cmd_sync(priv
, &cmd
);
1057 clear_bit(STATUS_SCAN_ABORTING
, &priv
->status
);
1061 res
= (struct iwl_rx_packet
*)cmd
.meta
.u
.skb
->data
;
1062 if (res
->u
.status
!= CAN_ABORT_STATUS
) {
1063 /* The scan abort will return 1 for success or
1064 * 2 for "failure". A failure condition can be
1065 * due to simply not being in an active scan which
1066 * can occur if we send the scan abort before we
1067 * the microcode has notified us that a scan is
1069 IWL_DEBUG_INFO("SCAN_ABORT returned %d.\n", res
->u
.status
);
1070 clear_bit(STATUS_SCAN_ABORTING
, &priv
->status
);
1071 clear_bit(STATUS_SCAN_HW
, &priv
->status
);
1074 dev_kfree_skb_any(cmd
.meta
.u
.skb
);
1079 static int iwl3945_card_state_sync_callback(struct iwl_priv
*priv
,
1080 struct iwl_cmd
*cmd
,
1081 struct sk_buff
*skb
)
1089 * Use: Sets the device's internal card state to enable, disable, or halt
1091 * When in the 'enable' state the card operates as normal.
1092 * When in the 'disable' state, the card enters into a low power mode.
1093 * When in the 'halt' state, the card is shut down and must be fully
1094 * restarted to come back on.
1096 static int iwl3945_send_card_state(struct iwl_priv
*priv
, u32 flags
, u8 meta_flag
)
1098 struct iwl_host_cmd cmd
= {
1099 .id
= REPLY_CARD_STATE_CMD
,
1102 .meta
.flags
= meta_flag
,
1105 if (meta_flag
& CMD_ASYNC
)
1106 cmd
.meta
.u
.callback
= iwl3945_card_state_sync_callback
;
1108 return iwl3945_send_cmd(priv
, &cmd
);
1111 static int iwl3945_add_sta_sync_callback(struct iwl_priv
*priv
,
1112 struct iwl_cmd
*cmd
, struct sk_buff
*skb
)
1114 struct iwl_rx_packet
*res
= NULL
;
1117 IWL_ERR(priv
, "Error: Response NULL in REPLY_ADD_STA.\n");
1121 res
= (struct iwl_rx_packet
*)skb
->data
;
1122 if (res
->hdr
.flags
& IWL_CMD_FAILED_MSK
) {
1123 IWL_ERR(priv
, "Bad return from REPLY_ADD_STA (0x%08X)\n",
1128 switch (res
->u
.add_sta
.status
) {
1129 case ADD_STA_SUCCESS_MSK
:
1135 /* We didn't cache the SKB; let the caller free it */
1139 int iwl3945_send_add_station(struct iwl_priv
*priv
,
1140 struct iwl3945_addsta_cmd
*sta
, u8 flags
)
1142 struct iwl_rx_packet
*res
= NULL
;
1144 struct iwl_host_cmd cmd
= {
1145 .id
= REPLY_ADD_STA
,
1146 .len
= sizeof(struct iwl3945_addsta_cmd
),
1147 .meta
.flags
= flags
,
1151 if (flags
& CMD_ASYNC
)
1152 cmd
.meta
.u
.callback
= iwl3945_add_sta_sync_callback
;
1154 cmd
.meta
.flags
|= CMD_WANT_SKB
;
1156 rc
= iwl3945_send_cmd(priv
, &cmd
);
1158 if (rc
|| (flags
& CMD_ASYNC
))
1161 res
= (struct iwl_rx_packet
*)cmd
.meta
.u
.skb
->data
;
1162 if (res
->hdr
.flags
& IWL_CMD_FAILED_MSK
) {
1163 IWL_ERR(priv
, "Bad return from REPLY_ADD_STA (0x%08X)\n",
1169 switch (res
->u
.add_sta
.status
) {
1170 case ADD_STA_SUCCESS_MSK
:
1171 IWL_DEBUG_INFO("REPLY_ADD_STA PASSED\n");
1175 IWL_WARN(priv
, "REPLY_ADD_STA failed\n");
1180 priv
->alloc_rxb_skb
--;
1181 dev_kfree_skb_any(cmd
.meta
.u
.skb
);
1186 static int iwl3945_update_sta_key_info(struct iwl_priv
*priv
,
1187 struct ieee80211_key_conf
*keyconf
,
1190 unsigned long flags
;
1191 __le16 key_flags
= 0;
1193 switch (keyconf
->alg
) {
1195 key_flags
|= STA_KEY_FLG_CCMP
;
1196 key_flags
|= cpu_to_le16(
1197 keyconf
->keyidx
<< STA_KEY_FLG_KEYID_POS
);
1198 key_flags
&= ~STA_KEY_FLG_INVALID
;
1205 spin_lock_irqsave(&priv
->sta_lock
, flags
);
1206 priv
->stations_39
[sta_id
].keyinfo
.alg
= keyconf
->alg
;
1207 priv
->stations_39
[sta_id
].keyinfo
.keylen
= keyconf
->keylen
;
1208 memcpy(priv
->stations_39
[sta_id
].keyinfo
.key
, keyconf
->key
,
1211 memcpy(priv
->stations_39
[sta_id
].sta
.key
.key
, keyconf
->key
,
1213 priv
->stations_39
[sta_id
].sta
.key
.key_flags
= key_flags
;
1214 priv
->stations_39
[sta_id
].sta
.sta
.modify_mask
= STA_MODIFY_KEY_MASK
;
1215 priv
->stations_39
[sta_id
].sta
.mode
= STA_CONTROL_MODIFY_MSK
;
1217 spin_unlock_irqrestore(&priv
->sta_lock
, flags
);
1219 IWL_DEBUG_INFO("hwcrypto: modify ucode station key info\n");
1220 iwl3945_send_add_station(priv
, &priv
->stations_39
[sta_id
].sta
, 0);
1224 static int iwl3945_clear_sta_key_info(struct iwl_priv
*priv
, u8 sta_id
)
1226 unsigned long flags
;
1228 spin_lock_irqsave(&priv
->sta_lock
, flags
);
1229 memset(&priv
->stations_39
[sta_id
].keyinfo
, 0, sizeof(struct iwl3945_hw_key
));
1230 memset(&priv
->stations_39
[sta_id
].sta
.key
, 0,
1231 sizeof(struct iwl4965_keyinfo
));
1232 priv
->stations_39
[sta_id
].sta
.key
.key_flags
= STA_KEY_FLG_NO_ENC
;
1233 priv
->stations_39
[sta_id
].sta
.sta
.modify_mask
= STA_MODIFY_KEY_MASK
;
1234 priv
->stations_39
[sta_id
].sta
.mode
= STA_CONTROL_MODIFY_MSK
;
1235 spin_unlock_irqrestore(&priv
->sta_lock
, flags
);
1237 IWL_DEBUG_INFO("hwcrypto: clear ucode station key info\n");
1238 iwl3945_send_add_station(priv
, &priv
->stations_39
[sta_id
].sta
, 0);
1242 static void iwl3945_clear_free_frames(struct iwl_priv
*priv
)
1244 struct list_head
*element
;
1246 IWL_DEBUG_INFO("%d frames on pre-allocated heap on clear.\n",
1247 priv
->frames_count
);
1249 while (!list_empty(&priv
->free_frames
)) {
1250 element
= priv
->free_frames
.next
;
1252 kfree(list_entry(element
, struct iwl3945_frame
, list
));
1253 priv
->frames_count
--;
1256 if (priv
->frames_count
) {
1257 IWL_WARN(priv
, "%d frames still in use. Did we lose one?\n",
1258 priv
->frames_count
);
1259 priv
->frames_count
= 0;
1263 static struct iwl3945_frame
*iwl3945_get_free_frame(struct iwl_priv
*priv
)
1265 struct iwl3945_frame
*frame
;
1266 struct list_head
*element
;
1267 if (list_empty(&priv
->free_frames
)) {
1268 frame
= kzalloc(sizeof(*frame
), GFP_KERNEL
);
1270 IWL_ERR(priv
, "Could not allocate frame!\n");
1274 priv
->frames_count
++;
1278 element
= priv
->free_frames
.next
;
1280 return list_entry(element
, struct iwl3945_frame
, list
);
1283 static void iwl3945_free_frame(struct iwl_priv
*priv
, struct iwl3945_frame
*frame
)
1285 memset(frame
, 0, sizeof(*frame
));
1286 list_add(&frame
->list
, &priv
->free_frames
);
1289 unsigned int iwl3945_fill_beacon_frame(struct iwl_priv
*priv
,
1290 struct ieee80211_hdr
*hdr
,
1294 if (!iwl3945_is_associated(priv
) || !priv
->ibss_beacon
||
1295 ((priv
->iw_mode
!= NL80211_IFTYPE_ADHOC
) &&
1296 (priv
->iw_mode
!= NL80211_IFTYPE_AP
)))
1299 if (priv
->ibss_beacon
->len
> left
)
1302 memcpy(hdr
, priv
->ibss_beacon
->data
, priv
->ibss_beacon
->len
);
1304 return priv
->ibss_beacon
->len
;
1307 static u8
iwl3945_rate_get_lowest_plcp(struct iwl_priv
*priv
)
1313 if (priv
->staging39_rxon
.flags
& RXON_FLG_BAND_24G_MSK
)
1314 rate_mask
= priv
->active_rate_basic
& IWL_CCK_RATES_MASK
;
1316 rate_mask
= priv
->active_rate_basic
& IWL_OFDM_RATES_MASK
;
1318 for (i
= IWL_RATE_1M_INDEX
; i
!= IWL_RATE_INVALID
;
1319 i
= iwl3945_rates
[i
].next_ieee
) {
1320 if (rate_mask
& (1 << i
))
1321 return iwl3945_rates
[i
].plcp
;
1324 /* No valid rate was found. Assign the lowest one */
1325 if (priv
->staging39_rxon
.flags
& RXON_FLG_BAND_24G_MSK
)
1326 return IWL_RATE_1M_PLCP
;
1328 return IWL_RATE_6M_PLCP
;
1331 static int iwl3945_send_beacon_cmd(struct iwl_priv
*priv
)
1333 struct iwl3945_frame
*frame
;
1334 unsigned int frame_size
;
1338 frame
= iwl3945_get_free_frame(priv
);
1341 IWL_ERR(priv
, "Could not obtain free frame buffer for beacon "
1346 rate
= iwl3945_rate_get_lowest_plcp(priv
);
1348 frame_size
= iwl3945_hw_get_beacon_cmd(priv
, frame
, rate
);
1350 rc
= iwl3945_send_cmd_pdu(priv
, REPLY_TX_BEACON
, frame_size
,
1353 iwl3945_free_frame(priv
, frame
);
1358 /******************************************************************************
1360 * EEPROM related functions
1362 ******************************************************************************/
1364 static void get_eeprom_mac(struct iwl_priv
*priv
, u8
*mac
)
1366 memcpy(mac
, priv
->eeprom39
.mac_address
, 6);
1370 * Clear the OWNER_MSK, to establish driver (instead of uCode running on
1371 * embedded controller) as EEPROM reader; each read is a series of pulses
1372 * to/from the EEPROM chip, not a single event, so even reads could conflict
1373 * if they weren't arbitrated by some ownership mechanism. Here, the driver
1374 * simply claims ownership, which should be safe when this function is called
1375 * (i.e. before loading uCode!).
1377 static inline int iwl3945_eeprom_acquire_semaphore(struct iwl_priv
*priv
)
1379 _iwl_clear_bit(priv
, CSR_EEPROM_GP
, CSR_EEPROM_GP_IF_OWNER_MSK
);
1384 * iwl3945_eeprom_init - read EEPROM contents
1386 * Load the EEPROM contents from adapter into priv->eeprom39
1388 * NOTE: This routine uses the non-debug IO access functions.
1390 int iwl3945_eeprom_init(struct iwl_priv
*priv
)
1392 u16
*e
= (u16
*)&priv
->eeprom39
;
1393 u32 gp
= iwl_read32(priv
, CSR_EEPROM_GP
);
1394 int sz
= sizeof(priv
->eeprom39
);
1398 /* The EEPROM structure has several padding buffers within it
1399 * and when adding new EEPROM maps is subject to programmer errors
1400 * which may be very difficult to identify without explicitly
1401 * checking the resulting size of the eeprom map. */
1402 BUILD_BUG_ON(sizeof(priv
->eeprom39
) != IWL_EEPROM_IMAGE_SIZE
);
1404 if ((gp
& CSR_EEPROM_GP_VALID_MSK
) == CSR_EEPROM_GP_BAD_SIGNATURE
) {
1405 IWL_ERR(priv
, "EEPROM not found, EEPROM_GP=0x%08x\n", gp
);
1409 /* Make sure driver (instead of uCode) is allowed to read EEPROM */
1410 ret
= iwl3945_eeprom_acquire_semaphore(priv
);
1412 IWL_ERR(priv
, "Failed to acquire EEPROM semaphore.\n");
1416 /* eeprom is an array of 16bit values */
1417 for (addr
= 0; addr
< sz
; addr
+= sizeof(u16
)) {
1420 _iwl_write32(priv
, CSR_EEPROM_REG
,
1421 CSR_EEPROM_REG_MSK_ADDR
& (addr
<< 1));
1422 _iwl_clear_bit(priv
, CSR_EEPROM_REG
, CSR_EEPROM_REG_BIT_CMD
);
1423 ret
= iwl_poll_direct_bit(priv
, CSR_EEPROM_REG
,
1424 CSR_EEPROM_REG_READ_VALID_MSK
,
1425 IWL_EEPROM_ACCESS_TIMEOUT
);
1427 IWL_ERR(priv
, "Time out reading EEPROM[%d]\n", addr
);
1431 r
= _iwl_read_direct32(priv
, CSR_EEPROM_REG
);
1432 e
[addr
/ 2] = le16_to_cpu((__force __le16
)(r
>> 16));
1438 static void iwl3945_unset_hw_params(struct iwl_priv
*priv
)
1440 if (priv
->shared_virt
)
1441 pci_free_consistent(priv
->pci_dev
,
1442 sizeof(struct iwl3945_shared
),
1448 * iwl3945_supported_rate_to_ie - fill in the supported rate in IE field
1450 * return : set the bit for each supported rate insert in ie
1452 static u16
iwl3945_supported_rate_to_ie(u8
*ie
, u16 supported_rate
,
1453 u16 basic_rate
, int *left
)
1455 u16 ret_rates
= 0, bit
;
1460 for (bit
= 1, i
= 0; i
< IWL_RATE_COUNT
; i
++, bit
<<= 1) {
1461 if (bit
& supported_rate
) {
1463 rates
[*cnt
] = iwl3945_rates
[i
].ieee
|
1464 ((bit
& basic_rate
) ? 0x80 : 0x00);
1468 (*cnt
>= IWL_SUPPORTED_RATES_IE_LEN
))
1477 * iwl3945_fill_probe_req - fill in all required fields and IE for probe request
1479 static u16
iwl3945_fill_probe_req(struct iwl_priv
*priv
,
1480 struct ieee80211_mgmt
*frame
,
1485 u16 active_rates
, ret_rates
, cck_rates
;
1487 /* Make sure there is enough space for the probe request,
1488 * two mandatory IEs and the data */
1494 frame
->frame_control
= cpu_to_le16(IEEE80211_STYPE_PROBE_REQ
);
1495 memcpy(frame
->da
, iwl_bcast_addr
, ETH_ALEN
);
1496 memcpy(frame
->sa
, priv
->mac_addr
, ETH_ALEN
);
1497 memcpy(frame
->bssid
, iwl_bcast_addr
, ETH_ALEN
);
1498 frame
->seq_ctrl
= 0;
1500 /* fill in our indirect SSID IE */
1507 pos
= &(frame
->u
.probe_req
.variable
[0]);
1508 *pos
++ = WLAN_EID_SSID
;
1511 /* fill in supported rate */
1517 /* ... fill it in... */
1518 *pos
++ = WLAN_EID_SUPP_RATES
;
1521 priv
->active_rate
= priv
->rates_mask
;
1522 active_rates
= priv
->active_rate
;
1523 priv
->active_rate_basic
= priv
->rates_mask
& IWL_BASIC_RATES_MASK
;
1525 cck_rates
= IWL_CCK_RATES_MASK
& active_rates
;
1526 ret_rates
= iwl3945_supported_rate_to_ie(pos
, cck_rates
,
1527 priv
->active_rate_basic
, &left
);
1528 active_rates
&= ~ret_rates
;
1530 ret_rates
= iwl3945_supported_rate_to_ie(pos
, active_rates
,
1531 priv
->active_rate_basic
, &left
);
1532 active_rates
&= ~ret_rates
;
1536 if (active_rates
== 0)
1539 /* fill in supported extended rate */
1544 /* ... fill it in... */
1545 *pos
++ = WLAN_EID_EXT_SUPP_RATES
;
1547 iwl3945_supported_rate_to_ie(pos
, active_rates
,
1548 priv
->active_rate_basic
, &left
);
1559 static int iwl3945_send_qos_params_command(struct iwl_priv
*priv
,
1560 struct iwl_qosparam_cmd
*qos
)
1563 return iwl3945_send_cmd_pdu(priv
, REPLY_QOS_PARAM
,
1564 sizeof(struct iwl_qosparam_cmd
), qos
);
1567 static void iwl3945_activate_qos(struct iwl_priv
*priv
, u8 force
)
1569 unsigned long flags
;
1571 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
1574 spin_lock_irqsave(&priv
->lock
, flags
);
1575 priv
->qos_data
.def_qos_parm
.qos_flags
= 0;
1577 if (priv
->qos_data
.qos_cap
.q_AP
.queue_request
&&
1578 !priv
->qos_data
.qos_cap
.q_AP
.txop_request
)
1579 priv
->qos_data
.def_qos_parm
.qos_flags
|=
1580 QOS_PARAM_FLG_TXOP_TYPE_MSK
;
1582 if (priv
->qos_data
.qos_active
)
1583 priv
->qos_data
.def_qos_parm
.qos_flags
|=
1584 QOS_PARAM_FLG_UPDATE_EDCA_MSK
;
1586 spin_unlock_irqrestore(&priv
->lock
, flags
);
1588 if (force
|| iwl3945_is_associated(priv
)) {
1589 IWL_DEBUG_QOS("send QoS cmd with QoS active %d \n",
1590 priv
->qos_data
.qos_active
);
1592 iwl3945_send_qos_params_command(priv
,
1593 &(priv
->qos_data
.def_qos_parm
));
1598 * Power management (not Tx power!) functions
1600 #define MSEC_TO_USEC 1024
1603 #define NOSLP __constant_cpu_to_le16(0), 0, 0
1604 #define SLP IWL_POWER_DRIVER_ALLOW_SLEEP_MSK, 0, 0
1605 #define SLP_TIMEOUT(T) __constant_cpu_to_le32((T) * MSEC_TO_USEC)
1606 #define SLP_VEC(X0, X1, X2, X3, X4) {__constant_cpu_to_le32(X0), \
1607 __constant_cpu_to_le32(X1), \
1608 __constant_cpu_to_le32(X2), \
1609 __constant_cpu_to_le32(X3), \
1610 __constant_cpu_to_le32(X4)}
1612 /* default power management (not Tx power) table values */
1614 static struct iwl_power_vec_entry range_0
[IWL39_POWER_AC
] = {
1615 {{NOSLP
, SLP_TIMEOUT(0), SLP_TIMEOUT(0), SLP_VEC(0, 0, 0, 0, 0)}, 0},
1616 {{SLP
, SLP_TIMEOUT(200), SLP_TIMEOUT(500), SLP_VEC(1, 2, 3, 4, 4)}, 0},
1617 {{SLP
, SLP_TIMEOUT(200), SLP_TIMEOUT(300), SLP_VEC(2, 4, 6, 7, 7)}, 0},
1618 {{SLP
, SLP_TIMEOUT(50), SLP_TIMEOUT(100), SLP_VEC(2, 6, 9, 9, 10)}, 0},
1619 {{SLP
, SLP_TIMEOUT(50), SLP_TIMEOUT(25), SLP_VEC(2, 7, 9, 9, 10)}, 1},
1620 {{SLP
, SLP_TIMEOUT(25), SLP_TIMEOUT(25), SLP_VEC(4, 7, 10, 10, 10)}, 1}
1624 static struct iwl_power_vec_entry range_1
[IWL39_POWER_AC
] = {
1625 {{NOSLP
, SLP_TIMEOUT(0), SLP_TIMEOUT(0), SLP_VEC(0, 0, 0, 0, 0)}, 0},
1626 {{SLP
, SLP_TIMEOUT(200), SLP_TIMEOUT(500),
1627 SLP_VEC(1, 2, 3, 4, 0xFF)}, 0},
1628 {{SLP
, SLP_TIMEOUT(200), SLP_TIMEOUT(300),
1629 SLP_VEC(2, 4, 6, 7, 0xFF)}, 0},
1630 {{SLP
, SLP_TIMEOUT(50), SLP_TIMEOUT(100),
1631 SLP_VEC(2, 6, 9, 9, 0xFF)}, 0},
1632 {{SLP
, SLP_TIMEOUT(50), SLP_TIMEOUT(25), SLP_VEC(2, 7, 9, 9, 0xFF)}, 0},
1633 {{SLP
, SLP_TIMEOUT(25), SLP_TIMEOUT(25),
1634 SLP_VEC(4, 7, 10, 10, 0xFF)}, 0}
1637 int iwl3945_power_init_handle(struct iwl_priv
*priv
)
1640 struct iwl3945_power_mgr
*pow_data
;
1641 int size
= sizeof(struct iwl_power_vec_entry
) * IWL39_POWER_AC
;
1644 IWL_DEBUG_POWER("Initialize power \n");
1646 pow_data
= &(priv
->power_data_39
);
1648 memset(pow_data
, 0, sizeof(*pow_data
));
1650 pow_data
->active_index
= IWL_POWER_RANGE_0
;
1651 pow_data
->dtim_val
= 0xffff;
1653 memcpy(&pow_data
->pwr_range_0
[0], &range_0
[0], size
);
1654 memcpy(&pow_data
->pwr_range_1
[0], &range_1
[0], size
);
1656 rc
= pci_read_config_word(priv
->pci_dev
, PCI_LINK_CTRL
, &pci_pm
);
1660 struct iwl_powertable_cmd
*cmd
;
1662 IWL_DEBUG_POWER("adjust power command flags\n");
1664 for (i
= 0; i
< IWL39_POWER_AC
; i
++) {
1665 cmd
= &pow_data
->pwr_range_0
[i
].cmd
;
1668 cmd
->flags
&= ~IWL_POWER_PCI_PM_MSK
;
1670 cmd
->flags
|= IWL_POWER_PCI_PM_MSK
;
1676 static int iwl3945_update_power_cmd(struct iwl_priv
*priv
,
1677 struct iwl_powertable_cmd
*cmd
, u32 mode
)
1682 struct iwl_power_vec_entry
*range
;
1684 struct iwl3945_power_mgr
*pow_data
;
1686 if (mode
> IWL_POWER_INDEX_5
) {
1687 IWL_DEBUG_POWER("Error invalid power mode \n");
1690 pow_data
= &(priv
->power_data_39
);
1692 if (pow_data
->active_index
== IWL_POWER_RANGE_0
)
1693 range
= &pow_data
->pwr_range_0
[0];
1695 range
= &pow_data
->pwr_range_1
[1];
1697 memcpy(cmd
, &range
[mode
].cmd
, sizeof(struct iwl3945_powertable_cmd
));
1699 #ifdef IWL_MAC80211_DISABLE
1700 if (priv
->assoc_network
!= NULL
) {
1701 unsigned long flags
;
1703 period
= priv
->assoc_network
->tim
.tim_period
;
1705 #endif /*IWL_MAC80211_DISABLE */
1706 skip
= range
[mode
].no_dtim
;
1715 cmd
->flags
&= ~IWL_POWER_SLEEP_OVER_DTIM_MSK
;
1717 __le32 slp_itrvl
= cmd
->sleep_interval
[IWL_POWER_VEC_SIZE
- 1];
1718 max_sleep
= (le32_to_cpu(slp_itrvl
) / period
) * period
;
1719 cmd
->flags
|= IWL_POWER_SLEEP_OVER_DTIM_MSK
;
1722 for (i
= 0; i
< IWL_POWER_VEC_SIZE
; i
++) {
1723 if (le32_to_cpu(cmd
->sleep_interval
[i
]) > max_sleep
)
1724 cmd
->sleep_interval
[i
] = cpu_to_le32(max_sleep
);
1727 IWL_DEBUG_POWER("Flags value = 0x%08X\n", cmd
->flags
);
1728 IWL_DEBUG_POWER("Tx timeout = %u\n", le32_to_cpu(cmd
->tx_data_timeout
));
1729 IWL_DEBUG_POWER("Rx timeout = %u\n", le32_to_cpu(cmd
->rx_data_timeout
));
1730 IWL_DEBUG_POWER("Sleep interval vector = { %d , %d , %d , %d , %d }\n",
1731 le32_to_cpu(cmd
->sleep_interval
[0]),
1732 le32_to_cpu(cmd
->sleep_interval
[1]),
1733 le32_to_cpu(cmd
->sleep_interval
[2]),
1734 le32_to_cpu(cmd
->sleep_interval
[3]),
1735 le32_to_cpu(cmd
->sleep_interval
[4]));
1740 static int iwl3945_send_power_mode(struct iwl_priv
*priv
, u32 mode
)
1742 u32
uninitialized_var(final_mode
);
1744 struct iwl_powertable_cmd cmd
;
1746 /* If on battery, set to 3,
1747 * if plugged into AC power, set to CAM ("continuously aware mode"),
1748 * else user level */
1750 case IWL39_POWER_BATTERY
:
1751 final_mode
= IWL_POWER_INDEX_3
;
1753 case IWL39_POWER_AC
:
1754 final_mode
= IWL_POWER_MODE_CAM
;
1761 iwl3945_update_power_cmd(priv
, &cmd
, final_mode
);
1763 /* FIXME use get_hcmd_size 3945 command is 4 bytes shorter */
1764 rc
= iwl3945_send_cmd_pdu(priv
, POWER_TABLE_CMD
,
1765 sizeof(struct iwl3945_powertable_cmd
), &cmd
);
1767 if (final_mode
== IWL_POWER_MODE_CAM
)
1768 clear_bit(STATUS_POWER_PMI
, &priv
->status
);
1770 set_bit(STATUS_POWER_PMI
, &priv
->status
);
1776 * iwl3945_scan_cancel - Cancel any currently executing HW scan
1778 * NOTE: priv->mutex is not required before calling this function
1780 static int iwl3945_scan_cancel(struct iwl_priv
*priv
)
1782 if (!test_bit(STATUS_SCAN_HW
, &priv
->status
)) {
1783 clear_bit(STATUS_SCANNING
, &priv
->status
);
1787 if (test_bit(STATUS_SCANNING
, &priv
->status
)) {
1788 if (!test_bit(STATUS_SCAN_ABORTING
, &priv
->status
)) {
1789 IWL_DEBUG_SCAN("Queuing scan abort.\n");
1790 set_bit(STATUS_SCAN_ABORTING
, &priv
->status
);
1791 queue_work(priv
->workqueue
, &priv
->abort_scan
);
1794 IWL_DEBUG_SCAN("Scan abort already in progress.\n");
1796 return test_bit(STATUS_SCANNING
, &priv
->status
);
1803 * iwl3945_scan_cancel_timeout - Cancel any currently executing HW scan
1804 * @ms: amount of time to wait (in milliseconds) for scan to abort
1806 * NOTE: priv->mutex must be held before calling this function
1808 static int iwl3945_scan_cancel_timeout(struct iwl_priv
*priv
, unsigned long ms
)
1810 unsigned long now
= jiffies
;
1813 ret
= iwl3945_scan_cancel(priv
);
1815 mutex_unlock(&priv
->mutex
);
1816 while (!time_after(jiffies
, now
+ msecs_to_jiffies(ms
)) &&
1817 test_bit(STATUS_SCANNING
, &priv
->status
))
1819 mutex_lock(&priv
->mutex
);
1821 return test_bit(STATUS_SCANNING
, &priv
->status
);
1827 #define MAX_UCODE_BEACON_INTERVAL 1024
1828 #define INTEL_CONN_LISTEN_INTERVAL __constant_cpu_to_le16(0xA)
1830 static __le16
iwl3945_adjust_beacon_interval(u16 beacon_val
)
1833 u16 beacon_factor
= 0;
1836 (beacon_val
+ MAX_UCODE_BEACON_INTERVAL
)
1837 / MAX_UCODE_BEACON_INTERVAL
;
1838 new_val
= beacon_val
/ beacon_factor
;
1840 return cpu_to_le16(new_val
);
1843 static void iwl3945_setup_rxon_timing(struct iwl_priv
*priv
)
1845 u64 interval_tm_unit
;
1847 unsigned long flags
;
1848 struct ieee80211_conf
*conf
= NULL
;
1851 conf
= ieee80211_get_hw_conf(priv
->hw
);
1853 spin_lock_irqsave(&priv
->lock
, flags
);
1854 priv
->rxon_timing
.timestamp
= cpu_to_le64(priv
->timestamp
);
1855 priv
->rxon_timing
.listen_interval
= INTEL_CONN_LISTEN_INTERVAL
;
1857 tsf
= priv
->timestamp
;
1859 beacon_int
= priv
->beacon_int
;
1860 spin_unlock_irqrestore(&priv
->lock
, flags
);
1862 if (priv
->iw_mode
== NL80211_IFTYPE_STATION
) {
1863 if (beacon_int
== 0) {
1864 priv
->rxon_timing
.beacon_interval
= cpu_to_le16(100);
1865 priv
->rxon_timing
.beacon_init_val
= cpu_to_le32(102400);
1867 priv
->rxon_timing
.beacon_interval
=
1868 cpu_to_le16(beacon_int
);
1869 priv
->rxon_timing
.beacon_interval
=
1870 iwl3945_adjust_beacon_interval(
1871 le16_to_cpu(priv
->rxon_timing
.beacon_interval
));
1874 priv
->rxon_timing
.atim_window
= 0;
1876 priv
->rxon_timing
.beacon_interval
=
1877 iwl3945_adjust_beacon_interval(conf
->beacon_int
);
1878 /* TODO: we need to get atim_window from upper stack
1879 * for now we set to 0 */
1880 priv
->rxon_timing
.atim_window
= 0;
1884 (le16_to_cpu(priv
->rxon_timing
.beacon_interval
) * 1024);
1885 result
= do_div(tsf
, interval_tm_unit
);
1886 priv
->rxon_timing
.beacon_init_val
=
1887 cpu_to_le32((u32
) ((u64
) interval_tm_unit
- result
));
1890 ("beacon interval %d beacon timer %d beacon tim %d\n",
1891 le16_to_cpu(priv
->rxon_timing
.beacon_interval
),
1892 le32_to_cpu(priv
->rxon_timing
.beacon_init_val
),
1893 le16_to_cpu(priv
->rxon_timing
.atim_window
));
1896 static int iwl3945_scan_initiate(struct iwl_priv
*priv
)
1898 if (!iwl_is_ready_rf(priv
)) {
1899 IWL_DEBUG_SCAN("Aborting scan due to not ready.\n");
1903 if (test_bit(STATUS_SCANNING
, &priv
->status
)) {
1904 IWL_DEBUG_SCAN("Scan already in progress.\n");
1908 if (test_bit(STATUS_SCAN_ABORTING
, &priv
->status
)) {
1909 IWL_DEBUG_SCAN("Scan request while abort pending. "
1914 IWL_DEBUG_INFO("Starting scan...\n");
1915 if (priv
->cfg
->sku
& IWL_SKU_G
)
1916 priv
->scan_bands
|= BIT(IEEE80211_BAND_2GHZ
);
1917 if (priv
->cfg
->sku
& IWL_SKU_A
)
1918 priv
->scan_bands
|= BIT(IEEE80211_BAND_5GHZ
);
1919 set_bit(STATUS_SCANNING
, &priv
->status
);
1920 priv
->scan_start
= jiffies
;
1921 priv
->scan_pass_start
= priv
->scan_start
;
1923 queue_work(priv
->workqueue
, &priv
->request_scan
);
1928 static int iwl3945_set_rxon_hwcrypto(struct iwl_priv
*priv
, int hw_decrypt
)
1930 struct iwl3945_rxon_cmd
*rxon
= &priv
->staging39_rxon
;
1933 rxon
->filter_flags
&= ~RXON_FILTER_DIS_DECRYPT_MSK
;
1935 rxon
->filter_flags
|= RXON_FILTER_DIS_DECRYPT_MSK
;
1940 static void iwl3945_set_flags_for_phymode(struct iwl_priv
*priv
,
1941 enum ieee80211_band band
)
1943 if (band
== IEEE80211_BAND_5GHZ
) {
1944 priv
->staging39_rxon
.flags
&=
1945 ~(RXON_FLG_BAND_24G_MSK
| RXON_FLG_AUTO_DETECT_MSK
1946 | RXON_FLG_CCK_MSK
);
1947 priv
->staging39_rxon
.flags
|= RXON_FLG_SHORT_SLOT_MSK
;
1949 /* Copied from iwl3945_bg_post_associate() */
1950 if (priv
->assoc_capability
& WLAN_CAPABILITY_SHORT_SLOT_TIME
)
1951 priv
->staging39_rxon
.flags
|= RXON_FLG_SHORT_SLOT_MSK
;
1953 priv
->staging39_rxon
.flags
&= ~RXON_FLG_SHORT_SLOT_MSK
;
1955 if (priv
->iw_mode
== NL80211_IFTYPE_ADHOC
)
1956 priv
->staging39_rxon
.flags
&= ~RXON_FLG_SHORT_SLOT_MSK
;
1958 priv
->staging39_rxon
.flags
|= RXON_FLG_BAND_24G_MSK
;
1959 priv
->staging39_rxon
.flags
|= RXON_FLG_AUTO_DETECT_MSK
;
1960 priv
->staging39_rxon
.flags
&= ~RXON_FLG_CCK_MSK
;
1965 * initialize rxon structure with default values from eeprom
1967 static void iwl3945_connection_init_rx_config(struct iwl_priv
*priv
,
1970 const struct iwl_channel_info
*ch_info
;
1972 memset(&priv
->staging39_rxon
, 0, sizeof(priv
->staging39_rxon
));
1975 case NL80211_IFTYPE_AP
:
1976 priv
->staging39_rxon
.dev_type
= RXON_DEV_TYPE_AP
;
1979 case NL80211_IFTYPE_STATION
:
1980 priv
->staging39_rxon
.dev_type
= RXON_DEV_TYPE_ESS
;
1981 priv
->staging39_rxon
.filter_flags
= RXON_FILTER_ACCEPT_GRP_MSK
;
1984 case NL80211_IFTYPE_ADHOC
:
1985 priv
->staging39_rxon
.dev_type
= RXON_DEV_TYPE_IBSS
;
1986 priv
->staging39_rxon
.flags
= RXON_FLG_SHORT_PREAMBLE_MSK
;
1987 priv
->staging39_rxon
.filter_flags
= RXON_FILTER_BCON_AWARE_MSK
|
1988 RXON_FILTER_ACCEPT_GRP_MSK
;
1991 case NL80211_IFTYPE_MONITOR
:
1992 priv
->staging39_rxon
.dev_type
= RXON_DEV_TYPE_SNIFFER
;
1993 priv
->staging39_rxon
.filter_flags
= RXON_FILTER_PROMISC_MSK
|
1994 RXON_FILTER_CTL2HOST_MSK
| RXON_FILTER_ACCEPT_GRP_MSK
;
1997 IWL_ERR(priv
, "Unsupported interface type %d\n", mode
);
2002 /* TODO: Figure out when short_preamble would be set and cache from
2004 if (!hw_to_local(priv
->hw
)->short_preamble
)
2005 priv
->staging39_rxon
.flags
&= ~RXON_FLG_SHORT_PREAMBLE_MSK
;
2007 priv
->staging39_rxon
.flags
|= RXON_FLG_SHORT_PREAMBLE_MSK
;
2010 ch_info
= iwl3945_get_channel_info(priv
, priv
->band
,
2011 le16_to_cpu(priv
->active39_rxon
.channel
));
2014 ch_info
= &priv
->channel_info
[0];
2017 * in some case A channels are all non IBSS
2018 * in this case force B/G channel
2020 if ((mode
== NL80211_IFTYPE_ADHOC
) && !(is_channel_ibss(ch_info
)))
2021 ch_info
= &priv
->channel_info
[0];
2023 priv
->staging39_rxon
.channel
= cpu_to_le16(ch_info
->channel
);
2024 if (is_channel_a_band(ch_info
))
2025 priv
->band
= IEEE80211_BAND_5GHZ
;
2027 priv
->band
= IEEE80211_BAND_2GHZ
;
2029 iwl3945_set_flags_for_phymode(priv
, priv
->band
);
2031 priv
->staging39_rxon
.ofdm_basic_rates
=
2032 (IWL_OFDM_RATES_MASK
>> IWL_FIRST_OFDM_RATE
) & 0xFF;
2033 priv
->staging39_rxon
.cck_basic_rates
=
2034 (IWL_CCK_RATES_MASK
>> IWL_FIRST_CCK_RATE
) & 0xF;
2037 static int iwl3945_set_mode(struct iwl_priv
*priv
, int mode
)
2039 if (mode
== NL80211_IFTYPE_ADHOC
) {
2040 const struct iwl_channel_info
*ch_info
;
2042 ch_info
= iwl3945_get_channel_info(priv
,
2044 le16_to_cpu(priv
->staging39_rxon
.channel
));
2046 if (!ch_info
|| !is_channel_ibss(ch_info
)) {
2047 IWL_ERR(priv
, "channel %d not IBSS channel\n",
2048 le16_to_cpu(priv
->staging39_rxon
.channel
));
2053 iwl3945_connection_init_rx_config(priv
, mode
);
2054 memcpy(priv
->staging39_rxon
.node_addr
, priv
->mac_addr
, ETH_ALEN
);
2056 iwl3945_clear_stations_table(priv
);
2058 /* don't commit rxon if rf-kill is on*/
2059 if (!iwl_is_ready_rf(priv
))
2062 cancel_delayed_work(&priv
->scan_check
);
2063 if (iwl3945_scan_cancel_timeout(priv
, 100)) {
2064 IWL_WARN(priv
, "Aborted scan still in progress after 100ms\n");
2065 IWL_DEBUG_MAC80211("leaving - scan abort failed.\n");
2069 iwl3945_commit_rxon(priv
);
2074 static void iwl3945_build_tx_cmd_hwcrypto(struct iwl_priv
*priv
,
2075 struct ieee80211_tx_info
*info
,
2076 struct iwl_cmd
*cmd
,
2077 struct sk_buff
*skb_frag
,
2080 struct iwl3945_hw_key
*keyinfo
=
2081 &priv
->stations_39
[info
->control
.hw_key
->hw_key_idx
].keyinfo
;
2083 switch (keyinfo
->alg
) {
2085 cmd
->cmd
.tx
.sec_ctl
= TX_CMD_SEC_CCM
;
2086 memcpy(cmd
->cmd
.tx
.key
, keyinfo
->key
, keyinfo
->keylen
);
2087 IWL_DEBUG_TX("tx_cmd with AES hwcrypto\n");
2092 cmd
->cmd
.tx
.sec_ctl
= TX_CMD_SEC_TKIP
;
2095 memcpy(cmd
->cmd
.tx
.tkip_mic
.byte
, skb_frag
->tail
- 8,
2098 memset(cmd
->cmd
.tx
.tkip_mic
.byte
, 0, 8);
2103 cmd
->cmd
.tx
.sec_ctl
= TX_CMD_SEC_WEP
|
2104 (info
->control
.hw_key
->hw_key_idx
& TX_CMD_SEC_MSK
) << TX_CMD_SEC_SHIFT
;
2106 if (keyinfo
->keylen
== 13)
2107 cmd
->cmd
.tx
.sec_ctl
|= TX_CMD_SEC_KEY128
;
2109 memcpy(&cmd
->cmd
.tx
.key
[3], keyinfo
->key
, keyinfo
->keylen
);
2111 IWL_DEBUG_TX("Configuring packet for WEP encryption "
2112 "with key %d\n", info
->control
.hw_key
->hw_key_idx
);
2116 IWL_ERR(priv
, "Unknown encode alg %d\n", keyinfo
->alg
);
2122 * handle build REPLY_TX command notification.
2124 static void iwl3945_build_tx_cmd_basic(struct iwl_priv
*priv
,
2125 struct iwl_cmd
*cmd
,
2126 struct ieee80211_tx_info
*info
,
2127 struct ieee80211_hdr
*hdr
,
2128 int is_unicast
, u8 std_id
)
2130 __le16 fc
= hdr
->frame_control
;
2131 __le32 tx_flags
= cmd
->cmd
.tx
.tx_flags
;
2132 u8 rc_flags
= info
->control
.rates
[0].flags
;
2134 cmd
->cmd
.tx
.stop_time
.life_time
= TX_CMD_LIFE_TIME_INFINITE
;
2135 if (!(info
->flags
& IEEE80211_TX_CTL_NO_ACK
)) {
2136 tx_flags
|= TX_CMD_FLG_ACK_MSK
;
2137 if (ieee80211_is_mgmt(fc
))
2138 tx_flags
|= TX_CMD_FLG_SEQ_CTL_MSK
;
2139 if (ieee80211_is_probe_resp(fc
) &&
2140 !(le16_to_cpu(hdr
->seq_ctrl
) & 0xf))
2141 tx_flags
|= TX_CMD_FLG_TSF_MSK
;
2143 tx_flags
&= (~TX_CMD_FLG_ACK_MSK
);
2144 tx_flags
|= TX_CMD_FLG_SEQ_CTL_MSK
;
2147 cmd
->cmd
.tx
.sta_id
= std_id
;
2148 if (ieee80211_has_morefrags(fc
))
2149 tx_flags
|= TX_CMD_FLG_MORE_FRAG_MSK
;
2151 if (ieee80211_is_data_qos(fc
)) {
2152 u8
*qc
= ieee80211_get_qos_ctl(hdr
);
2153 cmd
->cmd
.tx
.tid_tspec
= qc
[0] & 0xf;
2154 tx_flags
&= ~TX_CMD_FLG_SEQ_CTL_MSK
;
2156 tx_flags
|= TX_CMD_FLG_SEQ_CTL_MSK
;
2159 if (rc_flags
& IEEE80211_TX_RC_USE_RTS_CTS
) {
2160 tx_flags
|= TX_CMD_FLG_RTS_MSK
;
2161 tx_flags
&= ~TX_CMD_FLG_CTS_MSK
;
2162 } else if (rc_flags
& IEEE80211_TX_RC_USE_CTS_PROTECT
) {
2163 tx_flags
&= ~TX_CMD_FLG_RTS_MSK
;
2164 tx_flags
|= TX_CMD_FLG_CTS_MSK
;
2167 if ((tx_flags
& TX_CMD_FLG_RTS_MSK
) || (tx_flags
& TX_CMD_FLG_CTS_MSK
))
2168 tx_flags
|= TX_CMD_FLG_FULL_TXOP_PROT_MSK
;
2170 tx_flags
&= ~(TX_CMD_FLG_ANT_SEL_MSK
);
2171 if (ieee80211_is_mgmt(fc
)) {
2172 if (ieee80211_is_assoc_req(fc
) || ieee80211_is_reassoc_req(fc
))
2173 cmd
->cmd
.tx
.timeout
.pm_frame_timeout
= cpu_to_le16(3);
2175 cmd
->cmd
.tx
.timeout
.pm_frame_timeout
= cpu_to_le16(2);
2177 cmd
->cmd
.tx
.timeout
.pm_frame_timeout
= 0;
2178 #ifdef CONFIG_IWL3945_LEDS
2179 priv
->rxtxpackets
+= le16_to_cpu(cmd
->cmd
.tx
.len
);
2183 cmd
->cmd
.tx
.driver_txop
= 0;
2184 cmd
->cmd
.tx
.tx_flags
= tx_flags
;
2185 cmd
->cmd
.tx
.next_frame_len
= 0;
2189 * iwl3945_get_sta_id - Find station's index within station table
2191 static int iwl3945_get_sta_id(struct iwl_priv
*priv
, struct ieee80211_hdr
*hdr
)
2194 u16 fc
= le16_to_cpu(hdr
->frame_control
);
2196 /* If this frame is broadcast or management, use broadcast station id */
2197 if (((fc
& IEEE80211_FCTL_FTYPE
) != IEEE80211_FTYPE_DATA
) ||
2198 is_multicast_ether_addr(hdr
->addr1
))
2199 return priv
->hw_params
.bcast_sta_id
;
2201 switch (priv
->iw_mode
) {
2203 /* If we are a client station in a BSS network, use the special
2204 * AP station entry (that's the only station we communicate with) */
2205 case NL80211_IFTYPE_STATION
:
2208 /* If we are an AP, then find the station, or use BCAST */
2209 case NL80211_IFTYPE_AP
:
2210 sta_id
= iwl3945_hw_find_station(priv
, hdr
->addr1
);
2211 if (sta_id
!= IWL_INVALID_STATION
)
2213 return priv
->hw_params
.bcast_sta_id
;
2215 /* If this frame is going out to an IBSS network, find the station,
2216 * or create a new station table entry */
2217 case NL80211_IFTYPE_ADHOC
: {
2218 /* Create new station table entry */
2219 sta_id
= iwl3945_hw_find_station(priv
, hdr
->addr1
);
2220 if (sta_id
!= IWL_INVALID_STATION
)
2223 sta_id
= iwl3945_add_station(priv
, hdr
->addr1
, 0, CMD_ASYNC
);
2225 if (sta_id
!= IWL_INVALID_STATION
)
2228 IWL_DEBUG_DROP("Station %pM not in station map. "
2229 "Defaulting to broadcast...\n",
2231 iwl_print_hex_dump(priv
, IWL_DL_DROP
, (u8
*) hdr
, sizeof(*hdr
));
2232 return priv
->hw_params
.bcast_sta_id
;
2234 /* If we are in monitor mode, use BCAST. This is required for
2235 * packet injection. */
2236 case NL80211_IFTYPE_MONITOR
:
2237 return priv
->hw_params
.bcast_sta_id
;
2240 IWL_WARN(priv
, "Unknown mode of operation: %d\n",
2242 return priv
->hw_params
.bcast_sta_id
;
2247 * start REPLY_TX command process
2249 static int iwl3945_tx_skb(struct iwl_priv
*priv
, struct sk_buff
*skb
)
2251 struct ieee80211_hdr
*hdr
= (struct ieee80211_hdr
*)skb
->data
;
2252 struct ieee80211_tx_info
*info
= IEEE80211_SKB_CB(skb
);
2253 struct iwl3945_tfd
*tfd
;
2254 int txq_id
= skb_get_queue_mapping(skb
);
2255 struct iwl_tx_queue
*txq
= NULL
;
2256 struct iwl_queue
*q
= NULL
;
2257 dma_addr_t phys_addr
;
2258 dma_addr_t txcmd_phys
;
2259 struct iwl_cmd
*out_cmd
= NULL
;
2260 u16 len
, idx
, len_org
, hdr_len
;
2267 u8 wait_write_ptr
= 0;
2269 unsigned long flags
;
2272 spin_lock_irqsave(&priv
->lock
, flags
);
2273 if (iwl_is_rfkill(priv
)) {
2274 IWL_DEBUG_DROP("Dropping - RF KILL\n");
2278 if ((ieee80211_get_tx_rate(priv
->hw
, info
)->hw_value
& 0xFF) == IWL_INVALID_RATE
) {
2279 IWL_ERR(priv
, "ERROR: No TX rate available.\n");
2283 unicast
= !is_multicast_ether_addr(hdr
->addr1
);
2286 fc
= hdr
->frame_control
;
2288 #ifdef CONFIG_IWL3945_DEBUG
2289 if (ieee80211_is_auth(fc
))
2290 IWL_DEBUG_TX("Sending AUTH frame\n");
2291 else if (ieee80211_is_assoc_req(fc
))
2292 IWL_DEBUG_TX("Sending ASSOC frame\n");
2293 else if (ieee80211_is_reassoc_req(fc
))
2294 IWL_DEBUG_TX("Sending REASSOC frame\n");
2297 /* drop all data frame if we are not associated */
2298 if (ieee80211_is_data(fc
) &&
2299 (priv
->iw_mode
!= NL80211_IFTYPE_MONITOR
) && /* packet injection */
2300 (!iwl3945_is_associated(priv
) ||
2301 ((priv
->iw_mode
== NL80211_IFTYPE_STATION
) && !priv
->assoc_id
))) {
2302 IWL_DEBUG_DROP("Dropping - !iwl3945_is_associated\n");
2306 spin_unlock_irqrestore(&priv
->lock
, flags
);
2308 hdr_len
= ieee80211_hdrlen(fc
);
2310 /* Find (or create) index into station table for destination station */
2311 sta_id
= iwl3945_get_sta_id(priv
, hdr
);
2312 if (sta_id
== IWL_INVALID_STATION
) {
2313 IWL_DEBUG_DROP("Dropping - INVALID STATION: %pM\n",
2318 IWL_DEBUG_RATE("station Id %d\n", sta_id
);
2320 if (ieee80211_is_data_qos(fc
)) {
2321 qc
= ieee80211_get_qos_ctl(hdr
);
2322 tid
= qc
[0] & IEEE80211_QOS_CTL_TID_MASK
;
2323 seq_number
= priv
->stations_39
[sta_id
].tid
[tid
].seq_number
&
2325 hdr
->seq_ctrl
= cpu_to_le16(seq_number
) |
2327 __constant_cpu_to_le16(IEEE80211_SCTL_FRAG
));
2331 /* Descriptor for chosen Tx queue */
2332 txq
= &priv
->txq
[txq_id
];
2335 spin_lock_irqsave(&priv
->lock
, flags
);
2337 /* Set up first empty TFD within this queue's circular TFD buffer */
2338 tfd
= &txq
->tfds39
[q
->write_ptr
];
2339 memset(tfd
, 0, sizeof(*tfd
));
2340 idx
= get_cmd_index(q
, q
->write_ptr
, 0);
2342 /* Set up driver data for this TFD */
2343 memset(&(txq
->txb
[q
->write_ptr
]), 0, sizeof(struct iwl_tx_info
));
2344 txq
->txb
[q
->write_ptr
].skb
[0] = skb
;
2346 /* Init first empty entry in queue's array of Tx/cmd buffers */
2347 out_cmd
= txq
->cmd
[idx
];
2348 memset(&out_cmd
->hdr
, 0, sizeof(out_cmd
->hdr
));
2349 memset(&out_cmd
->cmd
.tx
, 0, sizeof(out_cmd
->cmd
.tx
));
2352 * Set up the Tx-command (not MAC!) header.
2353 * Store the chosen Tx queue and TFD index within the sequence field;
2354 * after Tx, uCode's Tx response will return this value so driver can
2355 * locate the frame within the tx queue and do post-tx processing.
2357 out_cmd
->hdr
.cmd
= REPLY_TX
;
2358 out_cmd
->hdr
.sequence
= cpu_to_le16((u16
)(QUEUE_TO_SEQ(txq_id
) |
2359 INDEX_TO_SEQ(q
->write_ptr
)));
2361 /* Copy MAC header from skb into command buffer */
2362 memcpy(out_cmd
->cmd
.tx
.hdr
, hdr
, hdr_len
);
2365 * Use the first empty entry in this queue's command buffer array
2366 * to contain the Tx command and MAC header concatenated together
2367 * (payload data will be in another buffer).
2368 * Size of this varies, due to varying MAC header length.
2369 * If end is not dword aligned, we'll have 2 extra bytes at the end
2370 * of the MAC header (device reads on dword boundaries).
2371 * We'll tell device about this padding later.
2373 len
= sizeof(struct iwl3945_tx_cmd
) +
2374 sizeof(struct iwl_cmd_header
) + hdr_len
;
2377 len
= (len
+ 3) & ~3;
2384 /* Physical address of this Tx command's header (not MAC header!),
2385 * within command buffer array. */
2386 txcmd_phys
= pci_map_single(priv
->pci_dev
,
2387 out_cmd
, sizeof(struct iwl_cmd
),
2389 pci_unmap_addr_set(&out_cmd
->meta
, mapping
, txcmd_phys
);
2390 pci_unmap_len_set(&out_cmd
->meta
, len
, sizeof(struct iwl_cmd
));
2391 /* Add buffer containing Tx command and MAC(!) header to TFD's
2393 txcmd_phys
+= offsetof(struct iwl_cmd
, hdr
);
2395 /* Add buffer containing Tx command and MAC(!) header to TFD's
2397 iwl3945_hw_txq_attach_buf_to_tfd(priv
, tfd
, txcmd_phys
, len
);
2399 if (info
->control
.hw_key
)
2400 iwl3945_build_tx_cmd_hwcrypto(priv
, info
, out_cmd
, skb
, 0);
2402 /* Set up TFD's 2nd entry to point directly to remainder of skb,
2403 * if any (802.11 null frames have no payload). */
2404 len
= skb
->len
- hdr_len
;
2406 phys_addr
= pci_map_single(priv
->pci_dev
, skb
->data
+ hdr_len
,
2407 len
, PCI_DMA_TODEVICE
);
2408 iwl3945_hw_txq_attach_buf_to_tfd(priv
, tfd
, phys_addr
, len
);
2412 /* If there is no payload, then we use only one Tx buffer */
2413 tfd
->control_flags
= cpu_to_le32(TFD_CTL_COUNT_SET(1));
2415 /* Else use 2 buffers.
2416 * Tell 3945 about any padding after MAC header */
2417 tfd
->control_flags
= cpu_to_le32(TFD_CTL_COUNT_SET(2) |
2418 TFD_CTL_PAD_SET(U32_PAD(len
)));
2420 /* Total # bytes to be transmitted */
2421 len
= (u16
)skb
->len
;
2422 out_cmd
->cmd
.tx
.len
= cpu_to_le16(len
);
2424 /* TODO need this for burst mode later on */
2425 iwl3945_build_tx_cmd_basic(priv
, out_cmd
, info
, hdr
, unicast
, sta_id
);
2427 /* set is_hcca to 0; it probably will never be implemented */
2428 iwl3945_hw_build_tx_cmd_rate(priv
, out_cmd
, info
, hdr
, sta_id
, 0);
2430 out_cmd
->cmd
.tx
.tx_flags
&= ~TX_CMD_FLG_ANT_A_MSK
;
2431 out_cmd
->cmd
.tx
.tx_flags
&= ~TX_CMD_FLG_ANT_B_MSK
;
2433 if (!ieee80211_has_morefrags(hdr
->frame_control
)) {
2434 txq
->need_update
= 1;
2436 priv
->stations_39
[sta_id
].tid
[tid
].seq_number
= seq_number
;
2439 txq
->need_update
= 0;
2442 iwl_print_hex_dump(priv
, IWL_DL_TX
, out_cmd
->cmd
.payload
,
2443 sizeof(out_cmd
->cmd
.tx
));
2445 iwl_print_hex_dump(priv
, IWL_DL_TX
, (u8
*)out_cmd
->cmd
.tx
.hdr
,
2446 ieee80211_hdrlen(fc
));
2448 /* Tell device the write index *just past* this latest filled TFD */
2449 q
->write_ptr
= iwl_queue_inc_wrap(q
->write_ptr
, q
->n_bd
);
2450 rc
= iwl3945_tx_queue_update_write_ptr(priv
, txq
);
2451 spin_unlock_irqrestore(&priv
->lock
, flags
);
2456 if ((iwl_queue_space(q
) < q
->high_mark
)
2457 && priv
->mac80211_registered
) {
2458 if (wait_write_ptr
) {
2459 spin_lock_irqsave(&priv
->lock
, flags
);
2460 txq
->need_update
= 1;
2461 iwl3945_tx_queue_update_write_ptr(priv
, txq
);
2462 spin_unlock_irqrestore(&priv
->lock
, flags
);
2465 ieee80211_stop_queue(priv
->hw
, skb_get_queue_mapping(skb
));
2471 spin_unlock_irqrestore(&priv
->lock
, flags
);
2476 static void iwl3945_set_rate(struct iwl_priv
*priv
)
2478 const struct ieee80211_supported_band
*sband
= NULL
;
2479 struct ieee80211_rate
*rate
;
2482 sband
= iwl_get_hw_mode(priv
, priv
->band
);
2484 IWL_ERR(priv
, "Failed to set rate: unable to get hw mode\n");
2488 priv
->active_rate
= 0;
2489 priv
->active_rate_basic
= 0;
2491 IWL_DEBUG_RATE("Setting rates for %s GHz\n",
2492 sband
->band
== IEEE80211_BAND_2GHZ
? "2.4" : "5");
2494 for (i
= 0; i
< sband
->n_bitrates
; i
++) {
2495 rate
= &sband
->bitrates
[i
];
2496 if ((rate
->hw_value
< IWL_RATE_COUNT
) &&
2497 !(rate
->flags
& IEEE80211_CHAN_DISABLED
)) {
2498 IWL_DEBUG_RATE("Adding rate index %d (plcp %d)\n",
2499 rate
->hw_value
, iwl3945_rates
[rate
->hw_value
].plcp
);
2500 priv
->active_rate
|= (1 << rate
->hw_value
);
2504 IWL_DEBUG_RATE("Set active_rate = %0x, active_rate_basic = %0x\n",
2505 priv
->active_rate
, priv
->active_rate_basic
);
2508 * If a basic rate is configured, then use it (adding IWL_RATE_1M_MASK)
2509 * otherwise set it to the default of all CCK rates and 6, 12, 24 for
2512 if (priv
->active_rate_basic
& IWL_CCK_BASIC_RATES_MASK
)
2513 priv
->staging39_rxon
.cck_basic_rates
=
2514 ((priv
->active_rate_basic
&
2515 IWL_CCK_RATES_MASK
) >> IWL_FIRST_CCK_RATE
) & 0xF;
2517 priv
->staging39_rxon
.cck_basic_rates
=
2518 (IWL_CCK_BASIC_RATES_MASK
>> IWL_FIRST_CCK_RATE
) & 0xF;
2520 if (priv
->active_rate_basic
& IWL_OFDM_BASIC_RATES_MASK
)
2521 priv
->staging39_rxon
.ofdm_basic_rates
=
2522 ((priv
->active_rate_basic
&
2523 (IWL_OFDM_BASIC_RATES_MASK
| IWL_RATE_6M_MASK
)) >>
2524 IWL_FIRST_OFDM_RATE
) & 0xFF;
2526 priv
->staging39_rxon
.ofdm_basic_rates
=
2527 (IWL_OFDM_BASIC_RATES_MASK
>> IWL_FIRST_OFDM_RATE
) & 0xFF;
2530 static void iwl3945_radio_kill_sw(struct iwl_priv
*priv
, int disable_radio
)
2532 unsigned long flags
;
2534 if (!!disable_radio
== test_bit(STATUS_RF_KILL_SW
, &priv
->status
))
2537 IWL_DEBUG_RF_KILL("Manual SW RF KILL set to: RADIO %s\n",
2538 disable_radio
? "OFF" : "ON");
2540 if (disable_radio
) {
2541 iwl3945_scan_cancel(priv
);
2542 /* FIXME: This is a workaround for AP */
2543 if (priv
->iw_mode
!= NL80211_IFTYPE_AP
) {
2544 spin_lock_irqsave(&priv
->lock
, flags
);
2545 iwl_write32(priv
, CSR_UCODE_DRV_GP1_SET
,
2546 CSR_UCODE_SW_BIT_RFKILL
);
2547 spin_unlock_irqrestore(&priv
->lock
, flags
);
2548 iwl3945_send_card_state(priv
, CARD_STATE_CMD_DISABLE
, 0);
2549 set_bit(STATUS_RF_KILL_SW
, &priv
->status
);
2554 spin_lock_irqsave(&priv
->lock
, flags
);
2555 iwl_write32(priv
, CSR_UCODE_DRV_GP1_CLR
, CSR_UCODE_SW_BIT_RFKILL
);
2557 clear_bit(STATUS_RF_KILL_SW
, &priv
->status
);
2558 spin_unlock_irqrestore(&priv
->lock
, flags
);
2563 spin_lock_irqsave(&priv
->lock
, flags
);
2564 iwl_read32(priv
, CSR_UCODE_DRV_GP1
);
2565 if (!iwl_grab_nic_access(priv
))
2566 iwl_release_nic_access(priv
);
2567 spin_unlock_irqrestore(&priv
->lock
, flags
);
2569 if (test_bit(STATUS_RF_KILL_HW
, &priv
->status
)) {
2570 IWL_DEBUG_RF_KILL("Can not turn radio back on - "
2571 "disabled by HW switch\n");
2576 queue_work(priv
->workqueue
, &priv
->restart
);
2580 void iwl3945_set_decrypted_flag(struct iwl_priv
*priv
, struct sk_buff
*skb
,
2581 u32 decrypt_res
, struct ieee80211_rx_status
*stats
)
2584 le16_to_cpu(((struct ieee80211_hdr
*)skb
->data
)->frame_control
);
2586 if (priv
->active39_rxon
.filter_flags
& RXON_FILTER_DIS_DECRYPT_MSK
)
2589 if (!(fc
& IEEE80211_FCTL_PROTECTED
))
2592 IWL_DEBUG_RX("decrypt_res:0x%x\n", decrypt_res
);
2593 switch (decrypt_res
& RX_RES_STATUS_SEC_TYPE_MSK
) {
2594 case RX_RES_STATUS_SEC_TYPE_TKIP
:
2595 if ((decrypt_res
& RX_RES_STATUS_DECRYPT_TYPE_MSK
) ==
2596 RX_RES_STATUS_BAD_ICV_MIC
)
2597 stats
->flag
|= RX_FLAG_MMIC_ERROR
;
2598 case RX_RES_STATUS_SEC_TYPE_WEP
:
2599 case RX_RES_STATUS_SEC_TYPE_CCMP
:
2600 if ((decrypt_res
& RX_RES_STATUS_DECRYPT_TYPE_MSK
) ==
2601 RX_RES_STATUS_DECRYPT_OK
) {
2602 IWL_DEBUG_RX("hw decrypt successfully!!!\n");
2603 stats
->flag
|= RX_FLAG_DECRYPTED
;
2612 #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT
2614 #include "iwl-spectrum.h"
2616 #define BEACON_TIME_MASK_LOW 0x00FFFFFF
2617 #define BEACON_TIME_MASK_HIGH 0xFF000000
2618 #define TIME_UNIT 1024
2621 * extended beacon time format
2622 * time in usec will be changed into a 32-bit value in 8:24 format
2623 * the high 1 byte is the beacon counts
2624 * the lower 3 bytes is the time in usec within one beacon interval
2627 static u32
iwl3945_usecs_to_beacons(u32 usec
, u32 beacon_interval
)
2631 u32 interval
= beacon_interval
* 1024;
2633 if (!interval
|| !usec
)
2636 quot
= (usec
/ interval
) & (BEACON_TIME_MASK_HIGH
>> 24);
2637 rem
= (usec
% interval
) & BEACON_TIME_MASK_LOW
;
2639 return (quot
<< 24) + rem
;
2642 /* base is usually what we get from ucode with each received frame,
2643 * the same as HW timer counter counting down
2646 static __le32
iwl3945_add_beacon_time(u32 base
, u32 addon
, u32 beacon_interval
)
2648 u32 base_low
= base
& BEACON_TIME_MASK_LOW
;
2649 u32 addon_low
= addon
& BEACON_TIME_MASK_LOW
;
2650 u32 interval
= beacon_interval
* TIME_UNIT
;
2651 u32 res
= (base
& BEACON_TIME_MASK_HIGH
) +
2652 (addon
& BEACON_TIME_MASK_HIGH
);
2654 if (base_low
> addon_low
)
2655 res
+= base_low
- addon_low
;
2656 else if (base_low
< addon_low
) {
2657 res
+= interval
+ base_low
- addon_low
;
2662 return cpu_to_le32(res
);
2665 static int iwl3945_get_measurement(struct iwl_priv
*priv
,
2666 struct ieee80211_measurement_params
*params
,
2669 struct iwl_spectrum_cmd spectrum
;
2670 struct iwl_rx_packet
*res
;
2671 struct iwl_host_cmd cmd
= {
2672 .id
= REPLY_SPECTRUM_MEASUREMENT_CMD
,
2673 .data
= (void *)&spectrum
,
2674 .meta
.flags
= CMD_WANT_SKB
,
2676 u32 add_time
= le64_to_cpu(params
->start_time
);
2678 int spectrum_resp_status
;
2679 int duration
= le16_to_cpu(params
->duration
);
2681 if (iwl3945_is_associated(priv
))
2683 iwl3945_usecs_to_beacons(
2684 le64_to_cpu(params
->start_time
) - priv
->last_tsf
,
2685 le16_to_cpu(priv
->rxon_timing
.beacon_interval
));
2687 memset(&spectrum
, 0, sizeof(spectrum
));
2689 spectrum
.channel_count
= cpu_to_le16(1);
2691 RXON_FLG_TSF2HOST_MSK
| RXON_FLG_ANT_A_MSK
| RXON_FLG_DIS_DIV_MSK
;
2692 spectrum
.filter_flags
= MEASUREMENT_FILTER_FLAG
;
2693 cmd
.len
= sizeof(spectrum
);
2694 spectrum
.len
= cpu_to_le16(cmd
.len
- sizeof(spectrum
.len
));
2696 if (iwl3945_is_associated(priv
))
2697 spectrum
.start_time
=
2698 iwl3945_add_beacon_time(priv
->last_beacon_time
,
2700 le16_to_cpu(priv
->rxon_timing
.beacon_interval
));
2702 spectrum
.start_time
= 0;
2704 spectrum
.channels
[0].duration
= cpu_to_le32(duration
* TIME_UNIT
);
2705 spectrum
.channels
[0].channel
= params
->channel
;
2706 spectrum
.channels
[0].type
= type
;
2707 if (priv
->active39_rxon
.flags
& RXON_FLG_BAND_24G_MSK
)
2708 spectrum
.flags
|= RXON_FLG_BAND_24G_MSK
|
2709 RXON_FLG_AUTO_DETECT_MSK
| RXON_FLG_TGG_PROTECT_MSK
;
2711 rc
= iwl3945_send_cmd_sync(priv
, &cmd
);
2715 res
= (struct iwl_rx_packet
*)cmd
.meta
.u
.skb
->data
;
2716 if (res
->hdr
.flags
& IWL_CMD_FAILED_MSK
) {
2717 IWL_ERR(priv
, "Bad return from REPLY_RX_ON_ASSOC command\n");
2721 spectrum_resp_status
= le16_to_cpu(res
->u
.spectrum
.status
);
2722 switch (spectrum_resp_status
) {
2723 case 0: /* Command will be handled */
2724 if (res
->u
.spectrum
.id
!= 0xff) {
2725 IWL_DEBUG_INFO("Replaced existing measurement: %d\n",
2726 res
->u
.spectrum
.id
);
2727 priv
->measurement_status
&= ~MEASUREMENT_READY
;
2729 priv
->measurement_status
|= MEASUREMENT_ACTIVE
;
2733 case 1: /* Command will not be handled */
2738 dev_kfree_skb_any(cmd
.meta
.u
.skb
);
2744 static void iwl3945_rx_reply_alive(struct iwl_priv
*priv
,
2745 struct iwl_rx_mem_buffer
*rxb
)
2747 struct iwl_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
2748 struct iwl_alive_resp
*palive
;
2749 struct delayed_work
*pwork
;
2751 palive
= &pkt
->u
.alive_frame
;
2753 IWL_DEBUG_INFO("Alive ucode status 0x%08X revision "
2755 palive
->is_valid
, palive
->ver_type
,
2756 palive
->ver_subtype
);
2758 if (palive
->ver_subtype
== INITIALIZE_SUBTYPE
) {
2759 IWL_DEBUG_INFO("Initialization Alive received.\n");
2760 memcpy(&priv
->card_alive_init
, &pkt
->u
.alive_frame
,
2761 sizeof(struct iwl_alive_resp
));
2762 pwork
= &priv
->init_alive_start
;
2764 IWL_DEBUG_INFO("Runtime Alive received.\n");
2765 memcpy(&priv
->card_alive
, &pkt
->u
.alive_frame
,
2766 sizeof(struct iwl_alive_resp
));
2767 pwork
= &priv
->alive_start
;
2768 iwl3945_disable_events(priv
);
2771 /* We delay the ALIVE response by 5ms to
2772 * give the HW RF Kill time to activate... */
2773 if (palive
->is_valid
== UCODE_VALID_OK
)
2774 queue_delayed_work(priv
->workqueue
, pwork
,
2775 msecs_to_jiffies(5));
2777 IWL_WARN(priv
, "uCode did not respond OK.\n");
2780 static void iwl3945_rx_reply_add_sta(struct iwl_priv
*priv
,
2781 struct iwl_rx_mem_buffer
*rxb
)
2783 struct iwl_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
2785 IWL_DEBUG_RX("Received REPLY_ADD_STA: 0x%02X\n", pkt
->u
.status
);
2789 static void iwl3945_rx_reply_error(struct iwl_priv
*priv
,
2790 struct iwl_rx_mem_buffer
*rxb
)
2792 struct iwl_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
2794 IWL_ERR(priv
, "Error Reply type 0x%08X cmd %s (0x%02X) "
2795 "seq 0x%04X ser 0x%08X\n",
2796 le32_to_cpu(pkt
->u
.err_resp
.error_type
),
2797 get_cmd_string(pkt
->u
.err_resp
.cmd_id
),
2798 pkt
->u
.err_resp
.cmd_id
,
2799 le16_to_cpu(pkt
->u
.err_resp
.bad_cmd_seq_num
),
2800 le32_to_cpu(pkt
->u
.err_resp
.error_info
));
2803 #define TX_STATUS_ENTRY(x) case TX_STATUS_FAIL_ ## x: return #x
2805 static void iwl3945_rx_csa(struct iwl_priv
*priv
, struct iwl_rx_mem_buffer
*rxb
)
2807 struct iwl_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
2808 struct iwl3945_rxon_cmd
*rxon
= (void *)&priv
->active39_rxon
;
2809 struct iwl_csa_notification
*csa
= &(pkt
->u
.csa_notif
);
2810 IWL_DEBUG_11H("CSA notif: channel %d, status %d\n",
2811 le16_to_cpu(csa
->channel
), le32_to_cpu(csa
->status
));
2812 rxon
->channel
= csa
->channel
;
2813 priv
->staging39_rxon
.channel
= csa
->channel
;
2816 static void iwl3945_rx_spectrum_measure_notif(struct iwl_priv
*priv
,
2817 struct iwl_rx_mem_buffer
*rxb
)
2819 #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT
2820 struct iwl_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
2821 struct iwl_spectrum_notification
*report
= &(pkt
->u
.spectrum_notif
);
2823 if (!report
->state
) {
2824 IWL_DEBUG(IWL_DL_11H
| IWL_DL_INFO
,
2825 "Spectrum Measure Notification: Start\n");
2829 memcpy(&priv
->measure_report
, report
, sizeof(*report
));
2830 priv
->measurement_status
|= MEASUREMENT_READY
;
2834 static void iwl3945_rx_pm_sleep_notif(struct iwl_priv
*priv
,
2835 struct iwl_rx_mem_buffer
*rxb
)
2837 #ifdef CONFIG_IWL3945_DEBUG
2838 struct iwl_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
2839 struct iwl_sleep_notification
*sleep
= &(pkt
->u
.sleep_notif
);
2840 IWL_DEBUG_RX("sleep mode: %d, src: %d\n",
2841 sleep
->pm_sleep_mode
, sleep
->pm_wakeup_src
);
2845 static void iwl3945_rx_pm_debug_statistics_notif(struct iwl_priv
*priv
,
2846 struct iwl_rx_mem_buffer
*rxb
)
2848 struct iwl_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
2849 IWL_DEBUG_RADIO("Dumping %d bytes of unhandled "
2850 "notification for %s:\n",
2851 le32_to_cpu(pkt
->len
), get_cmd_string(pkt
->hdr
.cmd
));
2852 iwl_print_hex_dump(priv
, IWL_DL_RADIO
, pkt
->u
.raw
,
2853 le32_to_cpu(pkt
->len
));
2856 static void iwl3945_bg_beacon_update(struct work_struct
*work
)
2858 struct iwl_priv
*priv
=
2859 container_of(work
, struct iwl_priv
, beacon_update
);
2860 struct sk_buff
*beacon
;
2862 /* Pull updated AP beacon from mac80211. will fail if not in AP mode */
2863 beacon
= ieee80211_beacon_get(priv
->hw
, priv
->vif
);
2866 IWL_ERR(priv
, "update beacon failed\n");
2870 mutex_lock(&priv
->mutex
);
2871 /* new beacon skb is allocated every time; dispose previous.*/
2872 if (priv
->ibss_beacon
)
2873 dev_kfree_skb(priv
->ibss_beacon
);
2875 priv
->ibss_beacon
= beacon
;
2876 mutex_unlock(&priv
->mutex
);
2878 iwl3945_send_beacon_cmd(priv
);
2881 static void iwl3945_rx_beacon_notif(struct iwl_priv
*priv
,
2882 struct iwl_rx_mem_buffer
*rxb
)
2884 #ifdef CONFIG_IWL3945_DEBUG
2885 struct iwl_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
2886 struct iwl3945_beacon_notif
*beacon
= &(pkt
->u
.beacon_status
);
2887 u8 rate
= beacon
->beacon_notify_hdr
.rate
;
2889 IWL_DEBUG_RX("beacon status %x retries %d iss %d "
2890 "tsf %d %d rate %d\n",
2891 le32_to_cpu(beacon
->beacon_notify_hdr
.status
) & TX_STATUS_MSK
,
2892 beacon
->beacon_notify_hdr
.failure_frame
,
2893 le32_to_cpu(beacon
->ibss_mgr_status
),
2894 le32_to_cpu(beacon
->high_tsf
),
2895 le32_to_cpu(beacon
->low_tsf
), rate
);
2898 if ((priv
->iw_mode
== NL80211_IFTYPE_AP
) &&
2899 (!test_bit(STATUS_EXIT_PENDING
, &priv
->status
)))
2900 queue_work(priv
->workqueue
, &priv
->beacon_update
);
2903 /* Service response to REPLY_SCAN_CMD (0x80) */
2904 static void iwl3945_rx_reply_scan(struct iwl_priv
*priv
,
2905 struct iwl_rx_mem_buffer
*rxb
)
2907 #ifdef CONFIG_IWL3945_DEBUG
2908 struct iwl_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
2909 struct iwl_scanreq_notification
*notif
=
2910 (struct iwl_scanreq_notification
*)pkt
->u
.raw
;
2912 IWL_DEBUG_RX("Scan request status = 0x%x\n", notif
->status
);
2916 /* Service SCAN_START_NOTIFICATION (0x82) */
2917 static void iwl3945_rx_scan_start_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_scanstart_notification
*notif
=
2922 (struct iwl_scanstart_notification
*)pkt
->u
.raw
;
2923 priv
->scan_start_tsf
= le32_to_cpu(notif
->tsf_low
);
2924 IWL_DEBUG_SCAN("Scan start: "
2926 "(TSF: 0x%08X:%08X) - %d (beacon timer %u)\n",
2928 notif
->band
? "bg" : "a",
2930 notif
->tsf_low
, notif
->status
, notif
->beacon_timer
);
2933 /* Service SCAN_RESULTS_NOTIFICATION (0x83) */
2934 static void iwl3945_rx_scan_results_notif(struct iwl_priv
*priv
,
2935 struct iwl_rx_mem_buffer
*rxb
)
2937 struct iwl_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
2938 struct iwl_scanresults_notification
*notif
=
2939 (struct iwl_scanresults_notification
*)pkt
->u
.raw
;
2941 IWL_DEBUG_SCAN("Scan ch.res: "
2943 "(TSF: 0x%08X:%08X) - %d "
2944 "elapsed=%lu usec (%dms since last)\n",
2946 notif
->band
? "bg" : "a",
2947 le32_to_cpu(notif
->tsf_high
),
2948 le32_to_cpu(notif
->tsf_low
),
2949 le32_to_cpu(notif
->statistics
[0]),
2950 le32_to_cpu(notif
->tsf_low
) - priv
->scan_start_tsf
,
2951 jiffies_to_msecs(elapsed_jiffies
2952 (priv
->last_scan_jiffies
, jiffies
)));
2954 priv
->last_scan_jiffies
= jiffies
;
2955 priv
->next_scan_jiffies
= 0;
2958 /* Service SCAN_COMPLETE_NOTIFICATION (0x84) */
2959 static void iwl3945_rx_scan_complete_notif(struct iwl_priv
*priv
,
2960 struct iwl_rx_mem_buffer
*rxb
)
2962 struct iwl_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
2963 struct iwl_scancomplete_notification
*scan_notif
= (void *)pkt
->u
.raw
;
2965 IWL_DEBUG_SCAN("Scan complete: %d channels (TSF 0x%08X:%08X) - %d\n",
2966 scan_notif
->scanned_channels
,
2967 scan_notif
->tsf_low
,
2968 scan_notif
->tsf_high
, scan_notif
->status
);
2970 /* The HW is no longer scanning */
2971 clear_bit(STATUS_SCAN_HW
, &priv
->status
);
2973 /* The scan completion notification came in, so kill that timer... */
2974 cancel_delayed_work(&priv
->scan_check
);
2976 IWL_DEBUG_INFO("Scan pass on %sGHz took %dms\n",
2977 (priv
->scan_bands
& BIT(IEEE80211_BAND_2GHZ
)) ?
2979 jiffies_to_msecs(elapsed_jiffies
2980 (priv
->scan_pass_start
, jiffies
)));
2982 /* Remove this scanned band from the list of pending
2983 * bands to scan, band G precedes A in order of scanning
2984 * as seen in iwl3945_bg_request_scan */
2985 if (priv
->scan_bands
& BIT(IEEE80211_BAND_2GHZ
))
2986 priv
->scan_bands
&= ~BIT(IEEE80211_BAND_2GHZ
);
2987 else if (priv
->scan_bands
& BIT(IEEE80211_BAND_5GHZ
))
2988 priv
->scan_bands
&= ~BIT(IEEE80211_BAND_5GHZ
);
2990 /* If a request to abort was given, or the scan did not succeed
2991 * then we reset the scan state machine and terminate,
2992 * re-queuing another scan if one has been requested */
2993 if (test_bit(STATUS_SCAN_ABORTING
, &priv
->status
)) {
2994 IWL_DEBUG_INFO("Aborted scan completed.\n");
2995 clear_bit(STATUS_SCAN_ABORTING
, &priv
->status
);
2997 /* If there are more bands on this scan pass reschedule */
2998 if (priv
->scan_bands
> 0)
3002 priv
->last_scan_jiffies
= jiffies
;
3003 priv
->next_scan_jiffies
= 0;
3004 IWL_DEBUG_INFO("Setting scan to off\n");
3006 clear_bit(STATUS_SCANNING
, &priv
->status
);
3008 IWL_DEBUG_INFO("Scan took %dms\n",
3009 jiffies_to_msecs(elapsed_jiffies(priv
->scan_start
, jiffies
)));
3011 queue_work(priv
->workqueue
, &priv
->scan_completed
);
3016 priv
->scan_pass_start
= jiffies
;
3017 queue_work(priv
->workqueue
, &priv
->request_scan
);
3020 /* Handle notification from uCode that card's power state is changing
3021 * due to software, hardware, or critical temperature RFKILL */
3022 static void iwl3945_rx_card_state_notif(struct iwl_priv
*priv
,
3023 struct iwl_rx_mem_buffer
*rxb
)
3025 struct iwl_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3026 u32 flags
= le32_to_cpu(pkt
->u
.card_state_notif
.flags
);
3027 unsigned long status
= priv
->status
;
3029 IWL_DEBUG_RF_KILL("Card state received: HW:%s SW:%s\n",
3030 (flags
& HW_CARD_DISABLED
) ? "Kill" : "On",
3031 (flags
& SW_CARD_DISABLED
) ? "Kill" : "On");
3033 iwl_write32(priv
, CSR_UCODE_DRV_GP1_SET
,
3034 CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED
);
3036 if (flags
& HW_CARD_DISABLED
)
3037 set_bit(STATUS_RF_KILL_HW
, &priv
->status
);
3039 clear_bit(STATUS_RF_KILL_HW
, &priv
->status
);
3042 if (flags
& SW_CARD_DISABLED
)
3043 set_bit(STATUS_RF_KILL_SW
, &priv
->status
);
3045 clear_bit(STATUS_RF_KILL_SW
, &priv
->status
);
3047 iwl3945_scan_cancel(priv
);
3049 if ((test_bit(STATUS_RF_KILL_HW
, &status
) !=
3050 test_bit(STATUS_RF_KILL_HW
, &priv
->status
)) ||
3051 (test_bit(STATUS_RF_KILL_SW
, &status
) !=
3052 test_bit(STATUS_RF_KILL_SW
, &priv
->status
)))
3053 queue_work(priv
->workqueue
, &priv
->rf_kill
);
3055 wake_up_interruptible(&priv
->wait_command_queue
);
3059 * iwl3945_setup_rx_handlers - Initialize Rx handler callbacks
3061 * Setup the RX handlers for each of the reply types sent from the uCode
3064 * This function chains into the hardware specific files for them to setup
3065 * any hardware specific handlers as well.
3067 static void iwl3945_setup_rx_handlers(struct iwl_priv
*priv
)
3069 priv
->rx_handlers
[REPLY_ALIVE
] = iwl3945_rx_reply_alive
;
3070 priv
->rx_handlers
[REPLY_ADD_STA
] = iwl3945_rx_reply_add_sta
;
3071 priv
->rx_handlers
[REPLY_ERROR
] = iwl3945_rx_reply_error
;
3072 priv
->rx_handlers
[CHANNEL_SWITCH_NOTIFICATION
] = iwl3945_rx_csa
;
3073 priv
->rx_handlers
[SPECTRUM_MEASURE_NOTIFICATION
] =
3074 iwl3945_rx_spectrum_measure_notif
;
3075 priv
->rx_handlers
[PM_SLEEP_NOTIFICATION
] = iwl3945_rx_pm_sleep_notif
;
3076 priv
->rx_handlers
[PM_DEBUG_STATISTIC_NOTIFIC
] =
3077 iwl3945_rx_pm_debug_statistics_notif
;
3078 priv
->rx_handlers
[BEACON_NOTIFICATION
] = iwl3945_rx_beacon_notif
;
3081 * The same handler is used for both the REPLY to a discrete
3082 * statistics request from the host as well as for the periodic
3083 * statistics notifications (after received beacons) from the uCode.
3085 priv
->rx_handlers
[REPLY_STATISTICS_CMD
] = iwl3945_hw_rx_statistics
;
3086 priv
->rx_handlers
[STATISTICS_NOTIFICATION
] = iwl3945_hw_rx_statistics
;
3088 priv
->rx_handlers
[REPLY_SCAN_CMD
] = iwl3945_rx_reply_scan
;
3089 priv
->rx_handlers
[SCAN_START_NOTIFICATION
] = iwl3945_rx_scan_start_notif
;
3090 priv
->rx_handlers
[SCAN_RESULTS_NOTIFICATION
] =
3091 iwl3945_rx_scan_results_notif
;
3092 priv
->rx_handlers
[SCAN_COMPLETE_NOTIFICATION
] =
3093 iwl3945_rx_scan_complete_notif
;
3094 priv
->rx_handlers
[CARD_STATE_NOTIFICATION
] = iwl3945_rx_card_state_notif
;
3096 /* Set up hardware specific Rx handlers */
3097 iwl3945_hw_rx_handler_setup(priv
);
3101 * iwl3945_cmd_queue_reclaim - Reclaim CMD queue entries
3102 * When FW advances 'R' index, all entries between old and new 'R' index
3103 * need to be reclaimed.
3105 static void iwl3945_cmd_queue_reclaim(struct iwl_priv
*priv
,
3106 int txq_id
, int index
)
3108 struct iwl_tx_queue
*txq
= &priv
->txq
[txq_id
];
3109 struct iwl_queue
*q
= &txq
->q
;
3112 if ((index
>= q
->n_bd
) || (iwl3945_x2_queue_used(q
, index
) == 0)) {
3113 IWL_ERR(priv
, "Read index for DMA queue txq id (%d), index %d, "
3114 "is out of range [0-%d] %d %d.\n", txq_id
,
3115 index
, q
->n_bd
, q
->write_ptr
, q
->read_ptr
);
3119 for (index
= iwl_queue_inc_wrap(index
, q
->n_bd
); q
->read_ptr
!= index
;
3120 q
->read_ptr
= iwl_queue_inc_wrap(q
->read_ptr
, q
->n_bd
)) {
3122 IWL_ERR(priv
, "HCMD skipped: index (%d) %d %d\n", index
,
3123 q
->write_ptr
, q
->read_ptr
);
3124 queue_work(priv
->workqueue
, &priv
->restart
);
3133 * iwl3945_tx_cmd_complete - Pull unused buffers off the queue and reclaim them
3134 * @rxb: Rx buffer to reclaim
3136 * If an Rx buffer has an async callback associated with it the callback
3137 * will be executed. The attached skb (if present) will only be freed
3138 * if the callback returns 1
3140 static void iwl3945_tx_cmd_complete(struct iwl_priv
*priv
,
3141 struct iwl_rx_mem_buffer
*rxb
)
3143 struct iwl_rx_packet
*pkt
= (struct iwl_rx_packet
*)rxb
->skb
->data
;
3144 u16 sequence
= le16_to_cpu(pkt
->hdr
.sequence
);
3145 int txq_id
= SEQ_TO_QUEUE(sequence
);
3146 int index
= SEQ_TO_INDEX(sequence
);
3147 int huge
= !!(pkt
->hdr
.sequence
& SEQ_HUGE_FRAME
);
3149 struct iwl_cmd
*cmd
;
3151 BUG_ON(txq_id
!= IWL_CMD_QUEUE_NUM
);
3153 cmd_index
= get_cmd_index(&priv
->txq
[IWL_CMD_QUEUE_NUM
].q
, index
, huge
);
3154 cmd
= priv
->txq
[IWL_CMD_QUEUE_NUM
].cmd
[cmd_index
];
3156 /* Input error checking is done when commands are added to queue. */
3157 if (cmd
->meta
.flags
& CMD_WANT_SKB
) {
3158 cmd
->meta
.source
->u
.skb
= rxb
->skb
;
3160 } else if (cmd
->meta
.u
.callback
&&
3161 !cmd
->meta
.u
.callback(priv
, cmd
, rxb
->skb
))
3164 iwl3945_cmd_queue_reclaim(priv
, txq_id
, index
);
3166 if (!(cmd
->meta
.flags
& CMD_ASYNC
)) {
3167 clear_bit(STATUS_HCMD_ACTIVE
, &priv
->status
);
3168 wake_up_interruptible(&priv
->wait_command_queue
);
3172 /************************** RX-FUNCTIONS ****************************/
3174 * Rx theory of operation
3176 * The host allocates 32 DMA target addresses and passes the host address
3177 * to the firmware at register IWL_RFDS_TABLE_LOWER + N * RFD_SIZE where N is
3181 * The host/firmware share two index registers for managing the Rx buffers.
3183 * The READ index maps to the first position that the firmware may be writing
3184 * to -- the driver can read up to (but not including) this position and get
3186 * The READ index is managed by the firmware once the card is enabled.
3188 * The WRITE index maps to the last position the driver has read from -- the
3189 * position preceding WRITE is the last slot the firmware can place a packet.
3191 * The queue is empty (no good data) if WRITE = READ - 1, and is full if
3194 * During initialization, the host sets up the READ queue position to the first
3195 * INDEX position, and WRITE to the last (READ - 1 wrapped)
3197 * When the firmware places a packet in a buffer, it will advance the READ index
3198 * and fire the RX interrupt. The driver can then query the READ index and
3199 * process as many packets as possible, moving the WRITE index forward as it
3200 * resets the Rx queue buffers with new memory.
3202 * The management in the driver is as follows:
3203 * + A list of pre-allocated SKBs is stored in iwl->rxq->rx_free. When
3204 * iwl->rxq->free_count drops to or below RX_LOW_WATERMARK, work is scheduled
3205 * to replenish the iwl->rxq->rx_free.
3206 * + In iwl3945_rx_replenish (scheduled) if 'processed' != 'read' then the
3207 * iwl->rxq is replenished and the READ INDEX is updated (updating the
3208 * 'processed' and 'read' driver indexes as well)
3209 * + A received packet is processed and handed to the kernel network stack,
3210 * detached from the iwl->rxq. The driver 'processed' index is updated.
3211 * + The Host/Firmware iwl->rxq is replenished at tasklet time from the rx_free
3212 * list. If there are no allocated buffers in iwl->rxq->rx_free, the READ
3213 * INDEX is not incremented and iwl->status(RX_STALLED) is set. If there
3214 * were enough free buffers and RX_STALLED is set it is cleared.
3219 * iwl3945_rx_queue_alloc() Allocates rx_free
3220 * iwl3945_rx_replenish() Replenishes rx_free list from rx_used, and calls
3221 * iwl3945_rx_queue_restock
3222 * iwl3945_rx_queue_restock() Moves available buffers from rx_free into Rx
3223 * queue, updates firmware pointers, and updates
3224 * the WRITE index. If insufficient rx_free buffers
3225 * are available, schedules iwl3945_rx_replenish
3227 * -- enable interrupts --
3228 * ISR - iwl3945_rx() Detach iwl_rx_mem_buffers from pool up to the
3229 * READ INDEX, detaching the SKB from the pool.
3230 * Moves the packet buffer from queue to rx_used.
3231 * Calls iwl3945_rx_queue_restock to refill any empty
3238 * iwl3945_rx_queue_space - Return number of free slots available in queue.
3240 static int iwl3945_rx_queue_space(const struct iwl_rx_queue
*q
)
3242 int s
= q
->read
- q
->write
;
3245 /* keep some buffer to not confuse full and empty queue */
3253 * iwl3945_rx_queue_update_write_ptr - Update the write pointer for the RX queue
3255 int iwl3945_rx_queue_update_write_ptr(struct iwl_priv
*priv
, struct iwl_rx_queue
*q
)
3259 unsigned long flags
;
3261 spin_lock_irqsave(&q
->lock
, flags
);
3263 if (q
->need_update
== 0)
3266 /* If power-saving is in use, make sure device is awake */
3267 if (test_bit(STATUS_POWER_PMI
, &priv
->status
)) {
3268 reg
= iwl_read32(priv
, CSR_UCODE_DRV_GP1
);
3270 if (reg
& CSR_UCODE_DRV_GP1_BIT_MAC_SLEEP
) {
3271 iwl_set_bit(priv
, CSR_GP_CNTRL
,
3272 CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ
);
3276 rc
= iwl_grab_nic_access(priv
);
3280 /* Device expects a multiple of 8 */
3281 iwl_write_direct32(priv
, FH39_RSCSR_CHNL0_WPTR
,
3283 iwl_release_nic_access(priv
);
3285 /* Else device is assumed to be awake */
3287 /* Device expects a multiple of 8 */
3288 iwl_write32(priv
, FH39_RSCSR_CHNL0_WPTR
, q
->write
& ~0x7);
3294 spin_unlock_irqrestore(&q
->lock
, flags
);
3299 * iwl3945_dma_addr2rbd_ptr - convert a DMA address to a uCode read buffer ptr
3301 static inline __le32
iwl3945_dma_addr2rbd_ptr(struct iwl_priv
*priv
,
3302 dma_addr_t dma_addr
)
3304 return cpu_to_le32((u32
)dma_addr
);
3308 * iwl3945_rx_queue_restock - refill RX queue from pre-allocated pool
3310 * If there are slots in the RX queue that need to be restocked,
3311 * and we have free pre-allocated buffers, fill the ranks as much
3312 * as we can, pulling from rx_free.
3314 * This moves the 'write' index forward to catch up with 'processed', and
3315 * also updates the memory address in the firmware to reference the new
3318 static int iwl3945_rx_queue_restock(struct iwl_priv
*priv
)
3320 struct iwl_rx_queue
*rxq
= &priv
->rxq
;
3321 struct list_head
*element
;
3322 struct iwl_rx_mem_buffer
*rxb
;
3323 unsigned long flags
;
3326 spin_lock_irqsave(&rxq
->lock
, flags
);
3327 write
= rxq
->write
& ~0x7;
3328 while ((iwl3945_rx_queue_space(rxq
) > 0) && (rxq
->free_count
)) {
3329 /* Get next free Rx buffer, remove from free list */
3330 element
= rxq
->rx_free
.next
;
3331 rxb
= list_entry(element
, struct iwl_rx_mem_buffer
, list
);
3334 /* Point to Rx buffer via next RBD in circular buffer */
3335 rxq
->bd
[rxq
->write
] = iwl3945_dma_addr2rbd_ptr(priv
, rxb
->real_dma_addr
);
3336 rxq
->queue
[rxq
->write
] = rxb
;
3337 rxq
->write
= (rxq
->write
+ 1) & RX_QUEUE_MASK
;
3340 spin_unlock_irqrestore(&rxq
->lock
, flags
);
3341 /* If the pre-allocated buffer pool is dropping low, schedule to
3343 if (rxq
->free_count
<= RX_LOW_WATERMARK
)
3344 queue_work(priv
->workqueue
, &priv
->rx_replenish
);
3347 /* If we've added more space for the firmware to place data, tell it.
3348 * Increment device's write pointer in multiples of 8. */
3349 if ((write
!= (rxq
->write
& ~0x7))
3350 || (abs(rxq
->write
- rxq
->read
) > 7)) {
3351 spin_lock_irqsave(&rxq
->lock
, flags
);
3352 rxq
->need_update
= 1;
3353 spin_unlock_irqrestore(&rxq
->lock
, flags
);
3354 rc
= iwl3945_rx_queue_update_write_ptr(priv
, rxq
);
3363 * iwl3945_rx_replenish - Move all used packet from rx_used to rx_free
3365 * When moving to rx_free an SKB is allocated for the slot.
3367 * Also restock the Rx queue via iwl3945_rx_queue_restock.
3368 * This is called as a scheduled work item (except for during initialization)
3370 static void iwl3945_rx_allocate(struct iwl_priv
*priv
)
3372 struct iwl_rx_queue
*rxq
= &priv
->rxq
;
3373 struct list_head
*element
;
3374 struct iwl_rx_mem_buffer
*rxb
;
3375 unsigned long flags
;
3376 spin_lock_irqsave(&rxq
->lock
, flags
);
3377 while (!list_empty(&rxq
->rx_used
)) {
3378 element
= rxq
->rx_used
.next
;
3379 rxb
= list_entry(element
, struct iwl_rx_mem_buffer
, list
);
3381 /* Alloc a new receive buffer */
3383 alloc_skb(IWL_RX_BUF_SIZE
, __GFP_NOWARN
| GFP_ATOMIC
);
3385 if (net_ratelimit())
3386 IWL_CRIT(priv
, ": Can not allocate SKB buffers\n");
3387 /* We don't reschedule replenish work here -- we will
3388 * call the restock method and if it still needs
3389 * more buffers it will schedule replenish */
3393 /* If radiotap head is required, reserve some headroom here.
3394 * The physical head count is a variable rx_stats->phy_count.
3395 * We reserve 4 bytes here. Plus these extra bytes, the
3396 * headroom of the physical head should be enough for the
3397 * radiotap head that iwl3945 supported. See iwl3945_rt.
3399 skb_reserve(rxb
->skb
, 4);
3401 priv
->alloc_rxb_skb
++;
3404 /* Get physical address of RB/SKB */
3405 rxb
->real_dma_addr
=
3406 pci_map_single(priv
->pci_dev
, rxb
->skb
->data
,
3407 IWL_RX_BUF_SIZE
, PCI_DMA_FROMDEVICE
);
3408 list_add_tail(&rxb
->list
, &rxq
->rx_free
);
3411 spin_unlock_irqrestore(&rxq
->lock
, flags
);
3415 * this should be called while priv->lock is locked
3417 static void __iwl3945_rx_replenish(void *data
)
3419 struct iwl_priv
*priv
= data
;
3421 iwl3945_rx_allocate(priv
);
3422 iwl3945_rx_queue_restock(priv
);
3426 void iwl3945_rx_replenish(void *data
)
3428 struct iwl_priv
*priv
= data
;
3429 unsigned long flags
;
3431 iwl3945_rx_allocate(priv
);
3433 spin_lock_irqsave(&priv
->lock
, flags
);
3434 iwl3945_rx_queue_restock(priv
);
3435 spin_unlock_irqrestore(&priv
->lock
, flags
);
3438 /* Assumes that the skb field of the buffers in 'pool' is kept accurate.
3439 * If an SKB has been detached, the POOL needs to have its SKB set to NULL
3440 * This free routine walks the list of POOL entries and if SKB is set to
3441 * non NULL it is unmapped and freed
3443 static void iwl3945_rx_queue_free(struct iwl_priv
*priv
, struct iwl_rx_queue
*rxq
)
3446 for (i
= 0; i
< RX_QUEUE_SIZE
+ RX_FREE_BUFFERS
; i
++) {
3447 if (rxq
->pool
[i
].skb
!= NULL
) {
3448 pci_unmap_single(priv
->pci_dev
,
3449 rxq
->pool
[i
].real_dma_addr
,
3450 IWL_RX_BUF_SIZE
, PCI_DMA_FROMDEVICE
);
3451 dev_kfree_skb(rxq
->pool
[i
].skb
);
3455 pci_free_consistent(priv
->pci_dev
, 4 * RX_QUEUE_SIZE
, rxq
->bd
,
3460 int iwl3945_rx_queue_alloc(struct iwl_priv
*priv
)
3462 struct iwl_rx_queue
*rxq
= &priv
->rxq
;
3463 struct pci_dev
*dev
= priv
->pci_dev
;
3466 spin_lock_init(&rxq
->lock
);
3467 INIT_LIST_HEAD(&rxq
->rx_free
);
3468 INIT_LIST_HEAD(&rxq
->rx_used
);
3470 /* Alloc the circular buffer of Read Buffer Descriptors (RBDs) */
3471 rxq
->bd
= pci_alloc_consistent(dev
, 4 * RX_QUEUE_SIZE
, &rxq
->dma_addr
);
3475 /* Fill the rx_used queue with _all_ of the Rx buffers */
3476 for (i
= 0; i
< RX_FREE_BUFFERS
+ RX_QUEUE_SIZE
; i
++)
3477 list_add_tail(&rxq
->pool
[i
].list
, &rxq
->rx_used
);
3479 /* Set us so that we have processed and used all buffers, but have
3480 * not restocked the Rx queue with fresh buffers */
3481 rxq
->read
= rxq
->write
= 0;
3482 rxq
->free_count
= 0;
3483 rxq
->need_update
= 0;
3487 void iwl3945_rx_queue_reset(struct iwl_priv
*priv
, struct iwl_rx_queue
*rxq
)
3489 unsigned long flags
;
3491 spin_lock_irqsave(&rxq
->lock
, flags
);
3492 INIT_LIST_HEAD(&rxq
->rx_free
);
3493 INIT_LIST_HEAD(&rxq
->rx_used
);
3494 /* Fill the rx_used queue with _all_ of the Rx buffers */
3495 for (i
= 0; i
< RX_FREE_BUFFERS
+ RX_QUEUE_SIZE
; i
++) {
3496 /* In the reset function, these buffers may have been allocated
3497 * to an SKB, so we need to unmap and free potential storage */
3498 if (rxq
->pool
[i
].skb
!= NULL
) {
3499 pci_unmap_single(priv
->pci_dev
,
3500 rxq
->pool
[i
].real_dma_addr
,
3501 IWL_RX_BUF_SIZE
, PCI_DMA_FROMDEVICE
);
3502 priv
->alloc_rxb_skb
--;
3503 dev_kfree_skb(rxq
->pool
[i
].skb
);
3504 rxq
->pool
[i
].skb
= NULL
;
3506 list_add_tail(&rxq
->pool
[i
].list
, &rxq
->rx_used
);
3509 /* Set us so that we have processed and used all buffers, but have
3510 * not restocked the Rx queue with fresh buffers */
3511 rxq
->read
= rxq
->write
= 0;
3512 rxq
->free_count
= 0;
3513 spin_unlock_irqrestore(&rxq
->lock
, flags
);
3516 /* Convert linear signal-to-noise ratio into dB */
3517 static u8 ratio2dB
[100] = {
3518 /* 0 1 2 3 4 5 6 7 8 9 */
3519 0, 0, 6, 10, 12, 14, 16, 17, 18, 19, /* 00 - 09 */
3520 20, 21, 22, 22, 23, 23, 24, 25, 26, 26, /* 10 - 19 */
3521 26, 26, 26, 27, 27, 28, 28, 28, 29, 29, /* 20 - 29 */
3522 29, 30, 30, 30, 31, 31, 31, 31, 32, 32, /* 30 - 39 */
3523 32, 32, 32, 33, 33, 33, 33, 33, 34, 34, /* 40 - 49 */
3524 34, 34, 34, 34, 35, 35, 35, 35, 35, 35, /* 50 - 59 */
3525 36, 36, 36, 36, 36, 36, 36, 37, 37, 37, /* 60 - 69 */
3526 37, 37, 37, 37, 37, 38, 38, 38, 38, 38, /* 70 - 79 */
3527 38, 38, 38, 38, 38, 39, 39, 39, 39, 39, /* 80 - 89 */
3528 39, 39, 39, 39, 39, 40, 40, 40, 40, 40 /* 90 - 99 */
3531 /* Calculates a relative dB value from a ratio of linear
3532 * (i.e. not dB) signal levels.
3533 * Conversion assumes that levels are voltages (20*log), not powers (10*log). */
3534 int iwl3945_calc_db_from_ratio(int sig_ratio
)
3536 /* 1000:1 or higher just report as 60 dB */
3537 if (sig_ratio
>= 1000)
3540 /* 100:1 or higher, divide by 10 and use table,
3541 * add 20 dB to make up for divide by 10 */
3542 if (sig_ratio
>= 100)
3543 return 20 + (int)ratio2dB
[sig_ratio
/10];
3545 /* We shouldn't see this */
3549 /* Use table for ratios 1:1 - 99:1 */
3550 return (int)ratio2dB
[sig_ratio
];
3553 #define PERFECT_RSSI (-20) /* dBm */
3554 #define WORST_RSSI (-95) /* dBm */
3555 #define RSSI_RANGE (PERFECT_RSSI - WORST_RSSI)
3557 /* Calculate an indication of rx signal quality (a percentage, not dBm!).
3558 * See http://www.ces.clemson.edu/linux/signal_quality.shtml for info
3559 * about formulas used below. */
3560 int iwl3945_calc_sig_qual(int rssi_dbm
, int noise_dbm
)
3563 int degradation
= PERFECT_RSSI
- rssi_dbm
;
3565 /* If we get a noise measurement, use signal-to-noise ratio (SNR)
3566 * as indicator; formula is (signal dbm - noise dbm).
3567 * SNR at or above 40 is a great signal (100%).
3568 * Below that, scale to fit SNR of 0 - 40 dB within 0 - 100% indicator.
3569 * Weakest usable signal is usually 10 - 15 dB SNR. */
3571 if (rssi_dbm
- noise_dbm
>= 40)
3573 else if (rssi_dbm
< noise_dbm
)
3575 sig_qual
= ((rssi_dbm
- noise_dbm
) * 5) / 2;
3577 /* Else use just the signal level.
3578 * This formula is a least squares fit of data points collected and
3579 * compared with a reference system that had a percentage (%) display
3580 * for signal quality. */
3582 sig_qual
= (100 * (RSSI_RANGE
* RSSI_RANGE
) - degradation
*
3583 (15 * RSSI_RANGE
+ 62 * degradation
)) /
3584 (RSSI_RANGE
* RSSI_RANGE
);
3588 else if (sig_qual
< 1)
3595 * iwl3945_rx_handle - Main entry function for receiving responses from uCode
3597 * Uses the priv->rx_handlers callback function array to invoke
3598 * the appropriate handlers, including command responses,
3599 * frame-received notifications, and other notifications.
3601 static void iwl3945_rx_handle(struct iwl_priv
*priv
)
3603 struct iwl_rx_mem_buffer
*rxb
;
3604 struct iwl_rx_packet
*pkt
;
3605 struct iwl_rx_queue
*rxq
= &priv
->rxq
;
3608 unsigned long flags
;
3612 /* uCode's read index (stored in shared DRAM) indicates the last Rx
3613 * buffer that the driver may process (last buffer filled by ucode). */
3614 r
= le16_to_cpu(rxq
->rb_stts
->closed_rb_num
) & 0x0FFF;
3617 if (iwl3945_rx_queue_space(rxq
) > (RX_QUEUE_SIZE
/ 2))
3619 /* Rx interrupt, but nothing sent from uCode */
3621 IWL_DEBUG(IWL_DL_RX
| IWL_DL_ISR
, "r = %d, i = %d\n", r
, i
);
3624 rxb
= rxq
->queue
[i
];
3626 /* If an RXB doesn't have a Rx queue slot associated with it,
3627 * then a bug has been introduced in the queue refilling
3628 * routines -- catch it here */
3629 BUG_ON(rxb
== NULL
);
3631 rxq
->queue
[i
] = NULL
;
3633 pci_dma_sync_single_for_cpu(priv
->pci_dev
, rxb
->real_dma_addr
,
3635 PCI_DMA_FROMDEVICE
);
3636 pkt
= (struct iwl_rx_packet
*)rxb
->skb
->data
;
3638 /* Reclaim a command buffer only if this packet is a response
3639 * to a (driver-originated) command.
3640 * If the packet (e.g. Rx frame) originated from uCode,
3641 * there is no command buffer to reclaim.
3642 * Ucode should set SEQ_RX_FRAME bit if ucode-originated,
3643 * but apparently a few don't get set; catch them here. */
3644 reclaim
= !(pkt
->hdr
.sequence
& SEQ_RX_FRAME
) &&
3645 (pkt
->hdr
.cmd
!= STATISTICS_NOTIFICATION
) &&
3646 (pkt
->hdr
.cmd
!= REPLY_TX
);
3648 /* Based on type of command response or notification,
3649 * handle those that need handling via function in
3650 * rx_handlers table. See iwl3945_setup_rx_handlers() */
3651 if (priv
->rx_handlers
[pkt
->hdr
.cmd
]) {
3652 IWL_DEBUG(IWL_DL_HCMD
| IWL_DL_RX
| IWL_DL_ISR
,
3653 "r = %d, i = %d, %s, 0x%02x\n", r
, i
,
3654 get_cmd_string(pkt
->hdr
.cmd
), pkt
->hdr
.cmd
);
3655 priv
->rx_handlers
[pkt
->hdr
.cmd
] (priv
, rxb
);
3657 /* No handling needed */
3658 IWL_DEBUG(IWL_DL_HCMD
| IWL_DL_RX
| IWL_DL_ISR
,
3659 "r %d i %d No handler needed for %s, 0x%02x\n",
3660 r
, i
, get_cmd_string(pkt
->hdr
.cmd
),
3665 /* Invoke any callbacks, transfer the skb to caller, and
3666 * fire off the (possibly) blocking iwl3945_send_cmd()
3667 * as we reclaim the driver command queue */
3668 if (rxb
&& rxb
->skb
)
3669 iwl3945_tx_cmd_complete(priv
, rxb
);
3671 IWL_WARN(priv
, "Claim null rxb?\n");
3674 /* For now we just don't re-use anything. We can tweak this
3675 * later to try and re-use notification packets and SKBs that
3676 * fail to Rx correctly */
3677 if (rxb
->skb
!= NULL
) {
3678 priv
->alloc_rxb_skb
--;
3679 dev_kfree_skb_any(rxb
->skb
);
3683 pci_unmap_single(priv
->pci_dev
, rxb
->real_dma_addr
,
3684 IWL_RX_BUF_SIZE
, PCI_DMA_FROMDEVICE
);
3685 spin_lock_irqsave(&rxq
->lock
, flags
);
3686 list_add_tail(&rxb
->list
, &priv
->rxq
.rx_used
);
3687 spin_unlock_irqrestore(&rxq
->lock
, flags
);
3688 i
= (i
+ 1) & RX_QUEUE_MASK
;
3689 /* If there are a lot of unused frames,
3690 * restock the Rx queue so ucode won't assert. */
3695 __iwl3945_rx_replenish(priv
);
3701 /* Backtrack one entry */
3703 iwl3945_rx_queue_restock(priv
);
3707 * iwl3945_tx_queue_update_write_ptr - Send new write index to hardware
3709 static int iwl3945_tx_queue_update_write_ptr(struct iwl_priv
*priv
,
3710 struct iwl_tx_queue
*txq
)
3714 int txq_id
= txq
->q
.id
;
3716 if (txq
->need_update
== 0)
3719 /* if we're trying to save power */
3720 if (test_bit(STATUS_POWER_PMI
, &priv
->status
)) {
3721 /* wake up nic if it's powered down ...
3722 * uCode will wake up, and interrupt us again, so next
3723 * time we'll skip this part. */
3724 reg
= iwl_read32(priv
, CSR_UCODE_DRV_GP1
);
3726 if (reg
& CSR_UCODE_DRV_GP1_BIT_MAC_SLEEP
) {
3727 IWL_DEBUG_INFO("Requesting wakeup, GP1 = 0x%x\n", reg
);
3728 iwl_set_bit(priv
, CSR_GP_CNTRL
,
3729 CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ
);
3733 /* restore this queue's parameters in nic hardware. */
3734 rc
= iwl_grab_nic_access(priv
);
3737 iwl_write_direct32(priv
, HBUS_TARG_WRPTR
,
3738 txq
->q
.write_ptr
| (txq_id
<< 8));
3739 iwl_release_nic_access(priv
);
3741 /* else not in power-save mode, uCode will never sleep when we're
3742 * trying to tx (during RFKILL, we're not trying to tx). */
3744 iwl_write32(priv
, HBUS_TARG_WRPTR
,
3745 txq
->q
.write_ptr
| (txq_id
<< 8));
3747 txq
->need_update
= 0;
3752 #ifdef CONFIG_IWL3945_DEBUG
3753 static void iwl3945_print_rx_config_cmd(struct iwl_priv
*priv
,
3754 struct iwl3945_rxon_cmd
*rxon
)
3756 IWL_DEBUG_RADIO("RX CONFIG:\n");
3757 iwl_print_hex_dump(priv
, IWL_DL_RADIO
, (u8
*) rxon
, sizeof(*rxon
));
3758 IWL_DEBUG_RADIO("u16 channel: 0x%x\n", le16_to_cpu(rxon
->channel
));
3759 IWL_DEBUG_RADIO("u32 flags: 0x%08X\n", le32_to_cpu(rxon
->flags
));
3760 IWL_DEBUG_RADIO("u32 filter_flags: 0x%08x\n",
3761 le32_to_cpu(rxon
->filter_flags
));
3762 IWL_DEBUG_RADIO("u8 dev_type: 0x%x\n", rxon
->dev_type
);
3763 IWL_DEBUG_RADIO("u8 ofdm_basic_rates: 0x%02x\n",
3764 rxon
->ofdm_basic_rates
);
3765 IWL_DEBUG_RADIO("u8 cck_basic_rates: 0x%02x\n", rxon
->cck_basic_rates
);
3766 IWL_DEBUG_RADIO("u8[6] node_addr: %pM\n", rxon
->node_addr
);
3767 IWL_DEBUG_RADIO("u8[6] bssid_addr: %pM\n", rxon
->bssid_addr
);
3768 IWL_DEBUG_RADIO("u16 assoc_id: 0x%x\n", le16_to_cpu(rxon
->assoc_id
));
3772 static void iwl3945_enable_interrupts(struct iwl_priv
*priv
)
3774 IWL_DEBUG_ISR("Enabling interrupts\n");
3775 set_bit(STATUS_INT_ENABLED
, &priv
->status
);
3776 iwl_write32(priv
, CSR_INT_MASK
, CSR_INI_SET_MASK
);
3780 /* call this function to flush any scheduled tasklet */
3781 static inline void iwl_synchronize_irq(struct iwl_priv
*priv
)
3783 /* wait to make sure we flush pending tasklet*/
3784 synchronize_irq(priv
->pci_dev
->irq
);
3785 tasklet_kill(&priv
->irq_tasklet
);
3789 static inline void iwl3945_disable_interrupts(struct iwl_priv
*priv
)
3791 clear_bit(STATUS_INT_ENABLED
, &priv
->status
);
3793 /* disable interrupts from uCode/NIC to host */
3794 iwl_write32(priv
, CSR_INT_MASK
, 0x00000000);
3796 /* acknowledge/clear/reset any interrupts still pending
3797 * from uCode or flow handler (Rx/Tx DMA) */
3798 iwl_write32(priv
, CSR_INT
, 0xffffffff);
3799 iwl_write32(priv
, CSR_FH_INT_STATUS
, 0xffffffff);
3800 IWL_DEBUG_ISR("Disabled interrupts\n");
3803 static const char *desc_lookup(int i
)
3811 return "BAD_CHECKSUM";
3813 return "NMI_INTERRUPT";
3817 return "FATAL_ERROR";
3823 #define ERROR_START_OFFSET (1 * sizeof(u32))
3824 #define ERROR_ELEM_SIZE (7 * sizeof(u32))
3826 static void iwl3945_dump_nic_error_log(struct iwl_priv
*priv
)
3829 u32 desc
, time
, count
, base
, data1
;
3830 u32 blink1
, blink2
, ilink1
, ilink2
;
3833 base
= le32_to_cpu(priv
->card_alive
.error_event_table_ptr
);
3835 if (!iwl3945_hw_valid_rtc_data_addr(base
)) {
3836 IWL_ERR(priv
, "Not valid error log pointer 0x%08X\n", base
);
3840 rc
= iwl_grab_nic_access(priv
);
3842 IWL_WARN(priv
, "Can not read from adapter at this time.\n");
3846 count
= iwl_read_targ_mem(priv
, base
);
3848 if (ERROR_START_OFFSET
<= count
* ERROR_ELEM_SIZE
) {
3849 IWL_ERR(priv
, "Start IWL Error Log Dump:\n");
3850 IWL_ERR(priv
, "Status: 0x%08lX, count: %d\n",
3851 priv
->status
, count
);
3854 IWL_ERR(priv
, "Desc Time asrtPC blink2 "
3855 "ilink1 nmiPC Line\n");
3856 for (i
= ERROR_START_OFFSET
;
3857 i
< (count
* ERROR_ELEM_SIZE
) + ERROR_START_OFFSET
;
3858 i
+= ERROR_ELEM_SIZE
) {
3859 desc
= iwl_read_targ_mem(priv
, base
+ i
);
3861 iwl_read_targ_mem(priv
, base
+ i
+ 1 * sizeof(u32
));
3863 iwl_read_targ_mem(priv
, base
+ i
+ 2 * sizeof(u32
));
3865 iwl_read_targ_mem(priv
, base
+ i
+ 3 * sizeof(u32
));
3867 iwl_read_targ_mem(priv
, base
+ i
+ 4 * sizeof(u32
));
3869 iwl_read_targ_mem(priv
, base
+ i
+ 5 * sizeof(u32
));
3871 iwl_read_targ_mem(priv
, base
+ i
+ 6 * sizeof(u32
));
3874 "%-13s (#%d) %010u 0x%05X 0x%05X 0x%05X 0x%05X %u\n\n",
3875 desc_lookup(desc
), desc
, time
, blink1
, blink2
,
3876 ilink1
, ilink2
, data1
);
3879 iwl_release_nic_access(priv
);
3883 #define EVENT_START_OFFSET (6 * sizeof(u32))
3886 * iwl3945_print_event_log - Dump error event log to syslog
3888 * NOTE: Must be called with iwl_grab_nic_access() already obtained!
3890 static void iwl3945_print_event_log(struct iwl_priv
*priv
, u32 start_idx
,
3891 u32 num_events
, u32 mode
)
3894 u32 base
; /* SRAM byte address of event log header */
3895 u32 event_size
; /* 2 u32s, or 3 u32s if timestamp recorded */
3896 u32 ptr
; /* SRAM byte address of log data */
3897 u32 ev
, time
, data
; /* event log data */
3899 if (num_events
== 0)
3902 base
= le32_to_cpu(priv
->card_alive
.log_event_table_ptr
);
3905 event_size
= 2 * sizeof(u32
);
3907 event_size
= 3 * sizeof(u32
);
3909 ptr
= base
+ EVENT_START_OFFSET
+ (start_idx
* event_size
);
3911 /* "time" is actually "data" for mode 0 (no timestamp).
3912 * place event id # at far right for easier visual parsing. */
3913 for (i
= 0; i
< num_events
; i
++) {
3914 ev
= iwl_read_targ_mem(priv
, ptr
);
3916 time
= iwl_read_targ_mem(priv
, ptr
);
3920 IWL_ERR(priv
, "0x%08x\t%04u\n", time
, ev
);
3922 data
= iwl_read_targ_mem(priv
, ptr
);
3924 IWL_ERR(priv
, "%010u\t0x%08x\t%04u\n", time
, data
, ev
);
3929 static void iwl3945_dump_nic_event_log(struct iwl_priv
*priv
)
3932 u32 base
; /* SRAM byte address of event log header */
3933 u32 capacity
; /* event log capacity in # entries */
3934 u32 mode
; /* 0 - no timestamp, 1 - timestamp recorded */
3935 u32 num_wraps
; /* # times uCode wrapped to top of log */
3936 u32 next_entry
; /* index of next entry to be written by uCode */
3937 u32 size
; /* # entries that we'll print */
3939 base
= le32_to_cpu(priv
->card_alive
.log_event_table_ptr
);
3940 if (!iwl3945_hw_valid_rtc_data_addr(base
)) {
3941 IWL_ERR(priv
, "Invalid event log pointer 0x%08X\n", base
);
3945 rc
= iwl_grab_nic_access(priv
);
3947 IWL_WARN(priv
, "Can not read from adapter at this time.\n");
3951 /* event log header */
3952 capacity
= iwl_read_targ_mem(priv
, base
);
3953 mode
= iwl_read_targ_mem(priv
, base
+ (1 * sizeof(u32
)));
3954 num_wraps
= iwl_read_targ_mem(priv
, base
+ (2 * sizeof(u32
)));
3955 next_entry
= iwl_read_targ_mem(priv
, base
+ (3 * sizeof(u32
)));
3957 size
= num_wraps
? capacity
: next_entry
;
3959 /* bail out if nothing in log */
3961 IWL_ERR(priv
, "Start IWL Event Log Dump: nothing in log\n");
3962 iwl_release_nic_access(priv
);
3966 IWL_ERR(priv
, "Start IWL Event Log Dump: display count %d, wraps %d\n",
3969 /* if uCode has wrapped back to top of log, start at the oldest entry,
3970 * i.e the next one that uCode would fill. */
3972 iwl3945_print_event_log(priv
, next_entry
,
3973 capacity
- next_entry
, mode
);
3975 /* (then/else) start at top of log */
3976 iwl3945_print_event_log(priv
, 0, next_entry
, mode
);
3978 iwl_release_nic_access(priv
);
3982 * iwl3945_irq_handle_error - called for HW or SW error interrupt from card
3984 static void iwl3945_irq_handle_error(struct iwl_priv
*priv
)
3986 /* Set the FW error flag -- cleared on iwl3945_down */
3987 set_bit(STATUS_FW_ERROR
, &priv
->status
);
3989 /* Cancel currently queued command. */
3990 clear_bit(STATUS_HCMD_ACTIVE
, &priv
->status
);
3992 #ifdef CONFIG_IWL3945_DEBUG
3993 if (priv
->debug_level
& IWL_DL_FW_ERRORS
) {
3994 iwl3945_dump_nic_error_log(priv
);
3995 iwl3945_dump_nic_event_log(priv
);
3996 iwl3945_print_rx_config_cmd(priv
, &priv
->staging39_rxon
);
4000 wake_up_interruptible(&priv
->wait_command_queue
);
4002 /* Keep the restart process from trying to send host
4003 * commands by clearing the INIT status bit */
4004 clear_bit(STATUS_READY
, &priv
->status
);
4006 if (!test_bit(STATUS_EXIT_PENDING
, &priv
->status
)) {
4007 IWL_DEBUG(IWL_DL_INFO
| IWL_DL_FW_ERRORS
,
4008 "Restarting adapter due to uCode error.\n");
4010 if (iwl3945_is_associated(priv
)) {
4011 memcpy(&priv
->recovery39_rxon
, &priv
->active39_rxon
,
4012 sizeof(priv
->recovery39_rxon
));
4013 priv
->error_recovering
= 1;
4015 queue_work(priv
->workqueue
, &priv
->restart
);
4019 static void iwl3945_error_recovery(struct iwl_priv
*priv
)
4021 unsigned long flags
;
4023 memcpy(&priv
->staging39_rxon
, &priv
->recovery39_rxon
,
4024 sizeof(priv
->staging39_rxon
));
4025 priv
->staging39_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
4026 iwl3945_commit_rxon(priv
);
4028 iwl3945_add_station(priv
, priv
->bssid
, 1, 0);
4030 spin_lock_irqsave(&priv
->lock
, flags
);
4031 priv
->assoc_id
= le16_to_cpu(priv
->staging39_rxon
.assoc_id
);
4032 priv
->error_recovering
= 0;
4033 spin_unlock_irqrestore(&priv
->lock
, flags
);
4036 static void iwl3945_irq_tasklet(struct iwl_priv
*priv
)
4038 u32 inta
, handled
= 0;
4040 unsigned long flags
;
4041 #ifdef CONFIG_IWL3945_DEBUG
4045 spin_lock_irqsave(&priv
->lock
, flags
);
4047 /* Ack/clear/reset pending uCode interrupts.
4048 * Note: Some bits in CSR_INT are "OR" of bits in CSR_FH_INT_STATUS,
4049 * and will clear only when CSR_FH_INT_STATUS gets cleared. */
4050 inta
= iwl_read32(priv
, CSR_INT
);
4051 iwl_write32(priv
, CSR_INT
, inta
);
4053 /* Ack/clear/reset pending flow-handler (DMA) interrupts.
4054 * Any new interrupts that happen after this, either while we're
4055 * in this tasklet, or later, will show up in next ISR/tasklet. */
4056 inta_fh
= iwl_read32(priv
, CSR_FH_INT_STATUS
);
4057 iwl_write32(priv
, CSR_FH_INT_STATUS
, inta_fh
);
4059 #ifdef CONFIG_IWL3945_DEBUG
4060 if (priv
->debug_level
& IWL_DL_ISR
) {
4061 /* just for debug */
4062 inta_mask
= iwl_read32(priv
, CSR_INT_MASK
);
4063 IWL_DEBUG_ISR("inta 0x%08x, enabled 0x%08x, fh 0x%08x\n",
4064 inta
, inta_mask
, inta_fh
);
4068 /* Since CSR_INT and CSR_FH_INT_STATUS reads and clears are not
4069 * atomic, make sure that inta covers all the interrupts that
4070 * we've discovered, even if FH interrupt came in just after
4071 * reading CSR_INT. */
4072 if (inta_fh
& CSR39_FH_INT_RX_MASK
)
4073 inta
|= CSR_INT_BIT_FH_RX
;
4074 if (inta_fh
& CSR39_FH_INT_TX_MASK
)
4075 inta
|= CSR_INT_BIT_FH_TX
;
4077 /* Now service all interrupt bits discovered above. */
4078 if (inta
& CSR_INT_BIT_HW_ERR
) {
4079 IWL_ERR(priv
, "Microcode HW error detected. Restarting.\n");
4081 /* Tell the device to stop sending interrupts */
4082 iwl3945_disable_interrupts(priv
);
4084 iwl3945_irq_handle_error(priv
);
4086 handled
|= CSR_INT_BIT_HW_ERR
;
4088 spin_unlock_irqrestore(&priv
->lock
, flags
);
4093 #ifdef CONFIG_IWL3945_DEBUG
4094 if (priv
->debug_level
& (IWL_DL_ISR
)) {
4095 /* NIC fires this, but we don't use it, redundant with WAKEUP */
4096 if (inta
& CSR_INT_BIT_SCD
)
4097 IWL_DEBUG_ISR("Scheduler finished to transmit "
4098 "the frame/frames.\n");
4100 /* Alive notification via Rx interrupt will do the real work */
4101 if (inta
& CSR_INT_BIT_ALIVE
)
4102 IWL_DEBUG_ISR("Alive interrupt\n");
4105 /* Safely ignore these bits for debug checks below */
4106 inta
&= ~(CSR_INT_BIT_SCD
| CSR_INT_BIT_ALIVE
);
4108 /* Error detected by uCode */
4109 if (inta
& CSR_INT_BIT_SW_ERR
) {
4110 IWL_ERR(priv
, "Microcode SW error detected. "
4111 "Restarting 0x%X.\n", inta
);
4112 iwl3945_irq_handle_error(priv
);
4113 handled
|= CSR_INT_BIT_SW_ERR
;
4116 /* uCode wakes up after power-down sleep */
4117 if (inta
& CSR_INT_BIT_WAKEUP
) {
4118 IWL_DEBUG_ISR("Wakeup interrupt\n");
4119 iwl3945_rx_queue_update_write_ptr(priv
, &priv
->rxq
);
4120 iwl3945_tx_queue_update_write_ptr(priv
, &priv
->txq
[0]);
4121 iwl3945_tx_queue_update_write_ptr(priv
, &priv
->txq
[1]);
4122 iwl3945_tx_queue_update_write_ptr(priv
, &priv
->txq
[2]);
4123 iwl3945_tx_queue_update_write_ptr(priv
, &priv
->txq
[3]);
4124 iwl3945_tx_queue_update_write_ptr(priv
, &priv
->txq
[4]);
4125 iwl3945_tx_queue_update_write_ptr(priv
, &priv
->txq
[5]);
4127 handled
|= CSR_INT_BIT_WAKEUP
;
4130 /* All uCode command responses, including Tx command responses,
4131 * Rx "responses" (frame-received notification), and other
4132 * notifications from uCode come through here*/
4133 if (inta
& (CSR_INT_BIT_FH_RX
| CSR_INT_BIT_SW_RX
)) {
4134 iwl3945_rx_handle(priv
);
4135 handled
|= (CSR_INT_BIT_FH_RX
| CSR_INT_BIT_SW_RX
);
4138 if (inta
& CSR_INT_BIT_FH_TX
) {
4139 IWL_DEBUG_ISR("Tx interrupt\n");
4141 iwl_write32(priv
, CSR_FH_INT_STATUS
, (1 << 6));
4142 if (!iwl_grab_nic_access(priv
)) {
4143 iwl_write_direct32(priv
, FH39_TCSR_CREDIT
4144 (FH39_SRVC_CHNL
), 0x0);
4145 iwl_release_nic_access(priv
);
4147 handled
|= CSR_INT_BIT_FH_TX
;
4150 if (inta
& ~handled
)
4151 IWL_ERR(priv
, "Unhandled INTA bits 0x%08x\n", inta
& ~handled
);
4153 if (inta
& ~CSR_INI_SET_MASK
) {
4154 IWL_WARN(priv
, "Disabled INTA bits 0x%08x were pending\n",
4155 inta
& ~CSR_INI_SET_MASK
);
4156 IWL_WARN(priv
, " with FH_INT = 0x%08x\n", inta_fh
);
4159 /* Re-enable all interrupts */
4160 /* only Re-enable if disabled by irq */
4161 if (test_bit(STATUS_INT_ENABLED
, &priv
->status
))
4162 iwl3945_enable_interrupts(priv
);
4164 #ifdef CONFIG_IWL3945_DEBUG
4165 if (priv
->debug_level
& (IWL_DL_ISR
)) {
4166 inta
= iwl_read32(priv
, CSR_INT
);
4167 inta_mask
= iwl_read32(priv
, CSR_INT_MASK
);
4168 inta_fh
= iwl_read32(priv
, CSR_FH_INT_STATUS
);
4169 IWL_DEBUG_ISR("End inta 0x%08x, enabled 0x%08x, fh 0x%08x, "
4170 "flags 0x%08lx\n", inta
, inta_mask
, inta_fh
, flags
);
4173 spin_unlock_irqrestore(&priv
->lock
, flags
);
4176 static irqreturn_t
iwl3945_isr(int irq
, void *data
)
4178 struct iwl_priv
*priv
= data
;
4179 u32 inta
, inta_mask
;
4184 spin_lock(&priv
->lock
);
4186 /* Disable (but don't clear!) interrupts here to avoid
4187 * back-to-back ISRs and sporadic interrupts from our NIC.
4188 * If we have something to service, the tasklet will re-enable ints.
4189 * If we *don't* have something, we'll re-enable before leaving here. */
4190 inta_mask
= iwl_read32(priv
, CSR_INT_MASK
); /* just for debug */
4191 iwl_write32(priv
, CSR_INT_MASK
, 0x00000000);
4193 /* Discover which interrupts are active/pending */
4194 inta
= iwl_read32(priv
, CSR_INT
);
4195 inta_fh
= iwl_read32(priv
, CSR_FH_INT_STATUS
);
4197 /* Ignore interrupt if there's nothing in NIC to service.
4198 * This may be due to IRQ shared with another device,
4199 * or due to sporadic interrupts thrown from our NIC. */
4200 if (!inta
&& !inta_fh
) {
4201 IWL_DEBUG_ISR("Ignore interrupt, inta == 0, inta_fh == 0\n");
4205 if ((inta
== 0xFFFFFFFF) || ((inta
& 0xFFFFFFF0) == 0xa5a5a5a0)) {
4206 /* Hardware disappeared */
4207 IWL_WARN(priv
, "HARDWARE GONE?? INTA == 0x%08x\n", inta
);
4211 IWL_DEBUG_ISR("ISR inta 0x%08x, enabled 0x%08x, fh 0x%08x\n",
4212 inta
, inta_mask
, inta_fh
);
4214 inta
&= ~CSR_INT_BIT_SCD
;
4216 /* iwl3945_irq_tasklet() will service interrupts and re-enable them */
4217 if (likely(inta
|| inta_fh
))
4218 tasklet_schedule(&priv
->irq_tasklet
);
4220 spin_unlock(&priv
->lock
);
4225 /* re-enable interrupts here since we don't have anything to service. */
4226 /* only Re-enable if disabled by irq */
4227 if (test_bit(STATUS_INT_ENABLED
, &priv
->status
))
4228 iwl3945_enable_interrupts(priv
);
4229 spin_unlock(&priv
->lock
);
4233 /************************** EEPROM BANDS ****************************
4235 * The iwl3945_eeprom_band definitions below provide the mapping from the
4236 * EEPROM contents to the specific channel number supported for each
4239 * For example, iwl3945_priv->eeprom39.band_3_channels[4] from the band_3
4240 * definition below maps to physical channel 42 in the 5.2GHz spectrum.
4241 * The specific geography and calibration information for that channel
4242 * is contained in the eeprom map itself.
4244 * During init, we copy the eeprom information and channel map
4245 * information into priv->channel_info_24/52 and priv->channel_map_24/52
4247 * channel_map_24/52 provides the index in the channel_info array for a
4248 * given channel. We have to have two separate maps as there is channel
4249 * overlap with the 2.4GHz and 5.2GHz spectrum as seen in band_1 and
4252 * A value of 0xff stored in the channel_map indicates that the channel
4253 * is not supported by the hardware at all.
4255 * A value of 0xfe in the channel_map indicates that the channel is not
4256 * valid for Tx with the current hardware. This means that
4257 * while the system can tune and receive on a given channel, it may not
4258 * be able to associate or transmit any frames on that
4259 * channel. There is no corresponding channel information for that
4262 *********************************************************************/
4265 static const u8 iwl3945_eeprom_band_1
[14] = {
4266 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14
4270 static const u8 iwl3945_eeprom_band_2
[] = { /* 4915-5080MHz */
4271 183, 184, 185, 187, 188, 189, 192, 196, 7, 8, 11, 12, 16
4274 static const u8 iwl3945_eeprom_band_3
[] = { /* 5170-5320MHz */
4275 34, 36, 38, 40, 42, 44, 46, 48, 52, 56, 60, 64
4278 static const u8 iwl3945_eeprom_band_4
[] = { /* 5500-5700MHz */
4279 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140
4282 static const u8 iwl3945_eeprom_band_5
[] = { /* 5725-5825MHz */
4283 145, 149, 153, 157, 161, 165
4286 static void iwl3945_init_band_reference(const struct iwl_priv
*priv
, int band
,
4287 int *eeprom_ch_count
,
4288 const struct iwl_eeprom_channel
4290 const u8
**eeprom_ch_index
)
4293 case 1: /* 2.4GHz band */
4294 *eeprom_ch_count
= ARRAY_SIZE(iwl3945_eeprom_band_1
);
4295 *eeprom_ch_info
= priv
->eeprom39
.band_1_channels
;
4296 *eeprom_ch_index
= iwl3945_eeprom_band_1
;
4298 case 2: /* 4.9GHz band */
4299 *eeprom_ch_count
= ARRAY_SIZE(iwl3945_eeprom_band_2
);
4300 *eeprom_ch_info
= priv
->eeprom39
.band_2_channels
;
4301 *eeprom_ch_index
= iwl3945_eeprom_band_2
;
4303 case 3: /* 5.2GHz band */
4304 *eeprom_ch_count
= ARRAY_SIZE(iwl3945_eeprom_band_3
);
4305 *eeprom_ch_info
= priv
->eeprom39
.band_3_channels
;
4306 *eeprom_ch_index
= iwl3945_eeprom_band_3
;
4308 case 4: /* 5.5GHz band */
4309 *eeprom_ch_count
= ARRAY_SIZE(iwl3945_eeprom_band_4
);
4310 *eeprom_ch_info
= priv
->eeprom39
.band_4_channels
;
4311 *eeprom_ch_index
= iwl3945_eeprom_band_4
;
4313 case 5: /* 5.7GHz band */
4314 *eeprom_ch_count
= ARRAY_SIZE(iwl3945_eeprom_band_5
);
4315 *eeprom_ch_info
= priv
->eeprom39
.band_5_channels
;
4316 *eeprom_ch_index
= iwl3945_eeprom_band_5
;
4325 * iwl3945_get_channel_info - Find driver's private channel info
4327 * Based on band and channel number.
4329 const struct iwl_channel_info
*
4330 iwl3945_get_channel_info(const struct iwl_priv
*priv
,
4331 enum ieee80211_band band
, u16 channel
)
4336 case IEEE80211_BAND_5GHZ
:
4337 for (i
= 14; i
< priv
->channel_count
; i
++) {
4338 if (priv
->channel_info
[i
].channel
== channel
)
4339 return &priv
->channel_info
[i
];
4343 case IEEE80211_BAND_2GHZ
:
4344 if (channel
>= 1 && channel
<= 14)
4345 return &priv
->channel_info
[channel
- 1];
4347 case IEEE80211_NUM_BANDS
:
4354 #define CHECK_AND_PRINT(x) ((eeprom_ch_info[ch].flags & EEPROM_CHANNEL_##x) \
4358 * iwl3945_init_channel_map - Set up driver's info for all possible channels
4360 static int iwl3945_init_channel_map(struct iwl_priv
*priv
)
4362 int eeprom_ch_count
= 0;
4363 const u8
*eeprom_ch_index
= NULL
;
4364 const struct iwl_eeprom_channel
*eeprom_ch_info
= NULL
;
4366 struct iwl_channel_info
*ch_info
;
4368 if (priv
->channel_count
) {
4369 IWL_DEBUG_INFO("Channel map already initialized.\n");
4373 if (priv
->eeprom39
.version
< 0x2f) {
4374 IWL_WARN(priv
, "Unsupported EEPROM version: 0x%04X\n",
4375 priv
->eeprom39
.version
);
4379 IWL_DEBUG_INFO("Initializing regulatory info from EEPROM\n");
4381 priv
->channel_count
=
4382 ARRAY_SIZE(iwl3945_eeprom_band_1
) +
4383 ARRAY_SIZE(iwl3945_eeprom_band_2
) +
4384 ARRAY_SIZE(iwl3945_eeprom_band_3
) +
4385 ARRAY_SIZE(iwl3945_eeprom_band_4
) +
4386 ARRAY_SIZE(iwl3945_eeprom_band_5
);
4388 IWL_DEBUG_INFO("Parsing data for %d channels.\n", priv
->channel_count
);
4390 priv
->channel_info
= kzalloc(sizeof(struct iwl_channel_info
) *
4391 priv
->channel_count
, GFP_KERNEL
);
4392 if (!priv
->channel_info
) {
4393 IWL_ERR(priv
, "Could not allocate channel_info\n");
4394 priv
->channel_count
= 0;
4398 ch_info
= priv
->channel_info
;
4400 /* Loop through the 5 EEPROM bands adding them in order to the
4401 * channel map we maintain (that contains additional information than
4402 * what just in the EEPROM) */
4403 for (band
= 1; band
<= 5; band
++) {
4405 iwl3945_init_band_reference(priv
, band
, &eeprom_ch_count
,
4406 &eeprom_ch_info
, &eeprom_ch_index
);
4408 /* Loop through each band adding each of the channels */
4409 for (ch
= 0; ch
< eeprom_ch_count
; ch
++) {
4410 ch_info
->channel
= eeprom_ch_index
[ch
];
4411 ch_info
->band
= (band
== 1) ? IEEE80211_BAND_2GHZ
:
4412 IEEE80211_BAND_5GHZ
;
4414 /* permanently store EEPROM's channel regulatory flags
4415 * and max power in channel info database. */
4416 ch_info
->eeprom
= eeprom_ch_info
[ch
];
4418 /* Copy the run-time flags so they are there even on
4419 * invalid channels */
4420 ch_info
->flags
= eeprom_ch_info
[ch
].flags
;
4422 if (!(is_channel_valid(ch_info
))) {
4423 IWL_DEBUG_INFO("Ch. %d Flags %x [%sGHz] - "
4427 is_channel_a_band(ch_info
) ?
4433 /* Initialize regulatory-based run-time data */
4434 ch_info
->max_power_avg
= ch_info
->curr_txpow
=
4435 eeprom_ch_info
[ch
].max_power_avg
;
4436 ch_info
->scan_power
= eeprom_ch_info
[ch
].max_power_avg
;
4437 ch_info
->min_power
= 0;
4439 IWL_DEBUG_INFO("Ch. %d [%sGHz] %s%s%s%s%s%s(0x%02x"
4440 " %ddBm): Ad-Hoc %ssupported\n",
4442 is_channel_a_band(ch_info
) ?
4444 CHECK_AND_PRINT(VALID
),
4445 CHECK_AND_PRINT(IBSS
),
4446 CHECK_AND_PRINT(ACTIVE
),
4447 CHECK_AND_PRINT(RADAR
),
4448 CHECK_AND_PRINT(WIDE
),
4449 CHECK_AND_PRINT(DFS
),
4450 eeprom_ch_info
[ch
].flags
,
4451 eeprom_ch_info
[ch
].max_power_avg
,
4452 ((eeprom_ch_info
[ch
].
4453 flags
& EEPROM_CHANNEL_IBSS
)
4454 && !(eeprom_ch_info
[ch
].
4455 flags
& EEPROM_CHANNEL_RADAR
))
4458 /* Set the user_txpower_limit to the highest power
4459 * supported by any channel */
4460 if (eeprom_ch_info
[ch
].max_power_avg
>
4461 priv
->user_txpower_limit
)
4462 priv
->user_txpower_limit
=
4463 eeprom_ch_info
[ch
].max_power_avg
;
4469 /* Set up txpower settings in driver for all channels */
4470 if (iwl3945_txpower_set_from_eeprom(priv
))
4477 * iwl3945_free_channel_map - undo allocations in iwl3945_init_channel_map
4479 static void iwl3945_free_channel_map(struct iwl_priv
*priv
)
4481 kfree(priv
->channel_info
);
4482 priv
->channel_count
= 0;
4485 /* For active scan, listen ACTIVE_DWELL_TIME (msec) on each channel after
4486 * sending probe req. This should be set long enough to hear probe responses
4487 * from more than one AP. */
4488 #define IWL_ACTIVE_DWELL_TIME_24 (30) /* all times in msec */
4489 #define IWL_ACTIVE_DWELL_TIME_52 (20)
4491 #define IWL_ACTIVE_DWELL_FACTOR_24GHZ (3)
4492 #define IWL_ACTIVE_DWELL_FACTOR_52GHZ (2)
4494 /* For faster active scanning, scan will move to the next channel if fewer than
4495 * PLCP_QUIET_THRESH packets are heard on this channel within
4496 * ACTIVE_QUIET_TIME after sending probe request. This shortens the dwell
4497 * time if it's a quiet channel (nothing responded to our probe, and there's
4498 * no other traffic).
4499 * Disable "quiet" feature by setting PLCP_QUIET_THRESH to 0. */
4500 #define IWL_PLCP_QUIET_THRESH __constant_cpu_to_le16(1) /* packets */
4501 #define IWL_ACTIVE_QUIET_TIME __constant_cpu_to_le16(10) /* msec */
4503 /* For passive scan, listen PASSIVE_DWELL_TIME (msec) on each channel.
4504 * Must be set longer than active dwell time.
4505 * For the most reliable scan, set > AP beacon interval (typically 100msec). */
4506 #define IWL_PASSIVE_DWELL_TIME_24 (20) /* all times in msec */
4507 #define IWL_PASSIVE_DWELL_TIME_52 (10)
4508 #define IWL_PASSIVE_DWELL_BASE (100)
4509 #define IWL_CHANNEL_TUNE_TIME 5
4511 #define IWL_SCAN_PROBE_MASK(n) (BIT(n) | (BIT(n) - BIT(1)))
4513 static inline u16
iwl3945_get_active_dwell_time(struct iwl_priv
*priv
,
4514 enum ieee80211_band band
,
4517 if (band
== IEEE80211_BAND_5GHZ
)
4518 return IWL_ACTIVE_DWELL_TIME_52
+
4519 IWL_ACTIVE_DWELL_FACTOR_52GHZ
* (n_probes
+ 1);
4521 return IWL_ACTIVE_DWELL_TIME_24
+
4522 IWL_ACTIVE_DWELL_FACTOR_24GHZ
* (n_probes
+ 1);
4525 static u16
iwl3945_get_passive_dwell_time(struct iwl_priv
*priv
,
4526 enum ieee80211_band band
)
4528 u16 passive
= (band
== IEEE80211_BAND_2GHZ
) ?
4529 IWL_PASSIVE_DWELL_BASE
+ IWL_PASSIVE_DWELL_TIME_24
:
4530 IWL_PASSIVE_DWELL_BASE
+ IWL_PASSIVE_DWELL_TIME_52
;
4532 if (iwl3945_is_associated(priv
)) {
4533 /* If we're associated, we clamp the maximum passive
4534 * dwell time to be 98% of the beacon interval (minus
4535 * 2 * channel tune time) */
4536 passive
= priv
->beacon_int
;
4537 if ((passive
> IWL_PASSIVE_DWELL_BASE
) || !passive
)
4538 passive
= IWL_PASSIVE_DWELL_BASE
;
4539 passive
= (passive
* 98) / 100 - IWL_CHANNEL_TUNE_TIME
* 2;
4545 static int iwl3945_get_channels_for_scan(struct iwl_priv
*priv
,
4546 enum ieee80211_band band
,
4547 u8 is_active
, u8 n_probes
,
4548 struct iwl3945_scan_channel
*scan_ch
)
4550 const struct ieee80211_channel
*channels
= NULL
;
4551 const struct ieee80211_supported_band
*sband
;
4552 const struct iwl_channel_info
*ch_info
;
4553 u16 passive_dwell
= 0;
4554 u16 active_dwell
= 0;
4557 sband
= iwl_get_hw_mode(priv
, band
);
4561 channels
= sband
->channels
;
4563 active_dwell
= iwl3945_get_active_dwell_time(priv
, band
, n_probes
);
4564 passive_dwell
= iwl3945_get_passive_dwell_time(priv
, band
);
4566 if (passive_dwell
<= active_dwell
)
4567 passive_dwell
= active_dwell
+ 1;
4569 for (i
= 0, added
= 0; i
< sband
->n_channels
; i
++) {
4570 if (channels
[i
].flags
& IEEE80211_CHAN_DISABLED
)
4573 scan_ch
->channel
= channels
[i
].hw_value
;
4575 ch_info
= iwl3945_get_channel_info(priv
, band
, scan_ch
->channel
);
4576 if (!is_channel_valid(ch_info
)) {
4577 IWL_DEBUG_SCAN("Channel %d is INVALID for this band.\n",
4582 scan_ch
->active_dwell
= cpu_to_le16(active_dwell
);
4583 scan_ch
->passive_dwell
= cpu_to_le16(passive_dwell
);
4584 /* If passive , set up for auto-switch
4585 * and use long active_dwell time.
4587 if (!is_active
|| is_channel_passive(ch_info
) ||
4588 (channels
[i
].flags
& IEEE80211_CHAN_PASSIVE_SCAN
)) {
4589 scan_ch
->type
= 0; /* passive */
4590 if (IWL_UCODE_API(priv
->ucode_ver
) == 1)
4591 scan_ch
->active_dwell
= cpu_to_le16(passive_dwell
- 1);
4593 scan_ch
->type
= 1; /* active */
4596 /* Set direct probe bits. These may be used both for active
4597 * scan channels (probes gets sent right away),
4598 * or for passive channels (probes get se sent only after
4599 * hearing clear Rx packet).*/
4600 if (IWL_UCODE_API(priv
->ucode_ver
) >= 2) {
4602 scan_ch
->type
|= IWL_SCAN_PROBE_MASK(n_probes
);
4604 /* uCode v1 does not allow setting direct probe bits on
4605 * passive channel. */
4606 if ((scan_ch
->type
& 1) && n_probes
)
4607 scan_ch
->type
|= IWL_SCAN_PROBE_MASK(n_probes
);
4610 /* Set txpower levels to defaults */
4611 scan_ch
->tpc
.dsp_atten
= 110;
4612 /* scan_pwr_info->tpc.dsp_atten; */
4614 /*scan_pwr_info->tpc.tx_gain; */
4615 if (band
== IEEE80211_BAND_5GHZ
)
4616 scan_ch
->tpc
.tx_gain
= ((1 << 5) | (3 << 3)) | 3;
4618 scan_ch
->tpc
.tx_gain
= ((1 << 5) | (5 << 3));
4619 /* NOTE: if we were doing 6Mb OFDM for scans we'd use
4621 * scan_ch->tpc.tx_gain = ((1 << 5) | (2 << 3)) | 3;
4625 IWL_DEBUG_SCAN("Scanning %d [%s %d]\n",
4627 (scan_ch
->type
& 1) ? "ACTIVE" : "PASSIVE",
4628 (scan_ch
->type
& 1) ?
4629 active_dwell
: passive_dwell
);
4635 IWL_DEBUG_SCAN("total channels to scan %d \n", added
);
4639 static void iwl3945_init_hw_rates(struct iwl_priv
*priv
,
4640 struct ieee80211_rate
*rates
)
4644 for (i
= 0; i
< IWL_RATE_COUNT
; i
++) {
4645 rates
[i
].bitrate
= iwl3945_rates
[i
].ieee
* 5;
4646 rates
[i
].hw_value
= i
; /* Rate scaling will work on indexes */
4647 rates
[i
].hw_value_short
= i
;
4649 if ((i
> IWL39_LAST_OFDM_RATE
) || (i
< IWL_FIRST_OFDM_RATE
)) {
4651 * If CCK != 1M then set short preamble rate flag.
4653 rates
[i
].flags
|= (iwl3945_rates
[i
].plcp
== 10) ?
4654 0 : IEEE80211_RATE_SHORT_PREAMBLE
;
4660 * iwl3945_init_geos - Initialize mac80211's geo/channel info based from eeprom
4662 static int iwl3945_init_geos(struct iwl_priv
*priv
)
4664 struct iwl_channel_info
*ch
;
4665 struct ieee80211_supported_band
*sband
;
4666 struct ieee80211_channel
*channels
;
4667 struct ieee80211_channel
*geo_ch
;
4668 struct ieee80211_rate
*rates
;
4671 if (priv
->bands
[IEEE80211_BAND_2GHZ
].n_bitrates
||
4672 priv
->bands
[IEEE80211_BAND_5GHZ
].n_bitrates
) {
4673 IWL_DEBUG_INFO("Geography modes already initialized.\n");
4674 set_bit(STATUS_GEO_CONFIGURED
, &priv
->status
);
4678 channels
= kzalloc(sizeof(struct ieee80211_channel
) *
4679 priv
->channel_count
, GFP_KERNEL
);
4683 rates
= kzalloc((sizeof(struct ieee80211_rate
) * (IWL_RATE_COUNT
+ 1)),
4690 /* 5.2GHz channels start after the 2.4GHz channels */
4691 sband
= &priv
->bands
[IEEE80211_BAND_5GHZ
];
4692 sband
->channels
= &channels
[ARRAY_SIZE(iwl3945_eeprom_band_1
)];
4694 sband
->bitrates
= &rates
[IWL_FIRST_OFDM_RATE
];
4695 sband
->n_bitrates
= IWL_RATE_COUNT
- IWL_FIRST_OFDM_RATE
;
4697 sband
= &priv
->bands
[IEEE80211_BAND_2GHZ
];
4698 sband
->channels
= channels
;
4700 sband
->bitrates
= rates
;
4701 sband
->n_bitrates
= IWL_RATE_COUNT
;
4703 priv
->ieee_channels
= channels
;
4704 priv
->ieee_rates
= rates
;
4706 iwl3945_init_hw_rates(priv
, rates
);
4708 for (i
= 0; i
< priv
->channel_count
; i
++) {
4709 ch
= &priv
->channel_info
[i
];
4711 /* FIXME: might be removed if scan is OK*/
4712 if (!is_channel_valid(ch
))
4715 if (is_channel_a_band(ch
))
4716 sband
= &priv
->bands
[IEEE80211_BAND_5GHZ
];
4718 sband
= &priv
->bands
[IEEE80211_BAND_2GHZ
];
4720 geo_ch
= &sband
->channels
[sband
->n_channels
++];
4722 geo_ch
->center_freq
= ieee80211_channel_to_frequency(ch
->channel
);
4723 geo_ch
->max_power
= ch
->max_power_avg
;
4724 geo_ch
->max_antenna_gain
= 0xff;
4725 geo_ch
->hw_value
= ch
->channel
;
4727 if (is_channel_valid(ch
)) {
4728 if (!(ch
->flags
& EEPROM_CHANNEL_IBSS
))
4729 geo_ch
->flags
|= IEEE80211_CHAN_NO_IBSS
;
4731 if (!(ch
->flags
& EEPROM_CHANNEL_ACTIVE
))
4732 geo_ch
->flags
|= IEEE80211_CHAN_PASSIVE_SCAN
;
4734 if (ch
->flags
& EEPROM_CHANNEL_RADAR
)
4735 geo_ch
->flags
|= IEEE80211_CHAN_RADAR
;
4737 if (ch
->max_power_avg
> priv
->max_channel_txpower_limit
)
4738 priv
->max_channel_txpower_limit
=
4741 geo_ch
->flags
|= IEEE80211_CHAN_DISABLED
;
4744 /* Save flags for reg domain usage */
4745 geo_ch
->orig_flags
= geo_ch
->flags
;
4747 IWL_DEBUG_INFO("Channel %d Freq=%d[%sGHz] %s flag=0%X\n",
4748 ch
->channel
, geo_ch
->center_freq
,
4749 is_channel_a_band(ch
) ? "5.2" : "2.4",
4750 geo_ch
->flags
& IEEE80211_CHAN_DISABLED
?
4751 "restricted" : "valid",
4755 if ((priv
->bands
[IEEE80211_BAND_5GHZ
].n_channels
== 0) &&
4756 priv
->cfg
->sku
& IWL_SKU_A
) {
4757 IWL_INFO(priv
, "Incorrectly detected BG card as ABG. "
4758 "Please send your PCI ID 0x%04X:0x%04X to maintainer.\n",
4759 priv
->pci_dev
->device
, priv
->pci_dev
->subsystem_device
);
4760 priv
->cfg
->sku
&= ~IWL_SKU_A
;
4763 IWL_INFO(priv
, "Tunable channels: %d 802.11bg, %d 802.11a channels\n",
4764 priv
->bands
[IEEE80211_BAND_2GHZ
].n_channels
,
4765 priv
->bands
[IEEE80211_BAND_5GHZ
].n_channels
);
4767 if (priv
->bands
[IEEE80211_BAND_2GHZ
].n_channels
)
4768 priv
->hw
->wiphy
->bands
[IEEE80211_BAND_2GHZ
] =
4769 &priv
->bands
[IEEE80211_BAND_2GHZ
];
4770 if (priv
->bands
[IEEE80211_BAND_5GHZ
].n_channels
)
4771 priv
->hw
->wiphy
->bands
[IEEE80211_BAND_5GHZ
] =
4772 &priv
->bands
[IEEE80211_BAND_5GHZ
];
4774 set_bit(STATUS_GEO_CONFIGURED
, &priv
->status
);
4780 * iwl3945_free_geos - undo allocations in iwl3945_init_geos
4782 static void iwl3945_free_geos(struct iwl_priv
*priv
)
4784 kfree(priv
->ieee_channels
);
4785 kfree(priv
->ieee_rates
);
4786 clear_bit(STATUS_GEO_CONFIGURED
, &priv
->status
);
4789 /******************************************************************************
4791 * uCode download functions
4793 ******************************************************************************/
4795 static void iwl3945_dealloc_ucode_pci(struct iwl_priv
*priv
)
4797 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_code
);
4798 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_data
);
4799 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_data_backup
);
4800 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_init
);
4801 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_init_data
);
4802 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_boot
);
4806 * iwl3945_verify_inst_full - verify runtime uCode image in card vs. host,
4807 * looking at all data.
4809 static int iwl3945_verify_inst_full(struct iwl_priv
*priv
, __le32
*image
, u32 len
)
4816 IWL_DEBUG_INFO("ucode inst image size is %u\n", len
);
4818 rc
= iwl_grab_nic_access(priv
);
4822 iwl_write_direct32(priv
, HBUS_TARG_MEM_RADDR
,
4823 IWL39_RTC_INST_LOWER_BOUND
);
4826 for (; len
> 0; len
-= sizeof(u32
), image
++) {
4827 /* read data comes through single port, auto-incr addr */
4828 /* NOTE: Use the debugless read so we don't flood kernel log
4829 * if IWL_DL_IO is set */
4830 val
= _iwl_read_direct32(priv
, HBUS_TARG_MEM_RDAT
);
4831 if (val
!= le32_to_cpu(*image
)) {
4832 IWL_ERR(priv
, "uCode INST section is invalid at "
4833 "offset 0x%x, is 0x%x, s/b 0x%x\n",
4834 save_len
- len
, val
, le32_to_cpu(*image
));
4842 iwl_release_nic_access(priv
);
4845 IWL_DEBUG_INFO("ucode image in INSTRUCTION memory is good\n");
4852 * iwl3945_verify_inst_sparse - verify runtime uCode image in card vs. host,
4853 * using sample data 100 bytes apart. If these sample points are good,
4854 * it's a pretty good bet that everything between them is good, too.
4856 static int iwl3945_verify_inst_sparse(struct iwl_priv
*priv
, __le32
*image
, u32 len
)
4863 IWL_DEBUG_INFO("ucode inst image size is %u\n", len
);
4865 rc
= iwl_grab_nic_access(priv
);
4869 for (i
= 0; i
< len
; i
+= 100, image
+= 100/sizeof(u32
)) {
4870 /* read data comes through single port, auto-incr addr */
4871 /* NOTE: Use the debugless read so we don't flood kernel log
4872 * if IWL_DL_IO is set */
4873 iwl_write_direct32(priv
, HBUS_TARG_MEM_RADDR
,
4874 i
+ IWL39_RTC_INST_LOWER_BOUND
);
4875 val
= _iwl_read_direct32(priv
, HBUS_TARG_MEM_RDAT
);
4876 if (val
!= le32_to_cpu(*image
)) {
4877 #if 0 /* Enable this if you want to see details */
4878 IWL_ERR(priv
, "uCode INST section is invalid at "
4879 "offset 0x%x, is 0x%x, s/b 0x%x\n",
4889 iwl_release_nic_access(priv
);
4896 * iwl3945_verify_ucode - determine which instruction image is in SRAM,
4897 * and verify its contents
4899 static int iwl3945_verify_ucode(struct iwl_priv
*priv
)
4906 image
= (__le32
*)priv
->ucode_boot
.v_addr
;
4907 len
= priv
->ucode_boot
.len
;
4908 rc
= iwl3945_verify_inst_sparse(priv
, image
, len
);
4910 IWL_DEBUG_INFO("Bootstrap uCode is good in inst SRAM\n");
4914 /* Try initialize */
4915 image
= (__le32
*)priv
->ucode_init
.v_addr
;
4916 len
= priv
->ucode_init
.len
;
4917 rc
= iwl3945_verify_inst_sparse(priv
, image
, len
);
4919 IWL_DEBUG_INFO("Initialize uCode is good in inst SRAM\n");
4923 /* Try runtime/protocol */
4924 image
= (__le32
*)priv
->ucode_code
.v_addr
;
4925 len
= priv
->ucode_code
.len
;
4926 rc
= iwl3945_verify_inst_sparse(priv
, image
, len
);
4928 IWL_DEBUG_INFO("Runtime uCode is good in inst SRAM\n");
4932 IWL_ERR(priv
, "NO VALID UCODE IMAGE IN INSTRUCTION SRAM!!\n");
4934 /* Since nothing seems to match, show first several data entries in
4935 * instruction SRAM, so maybe visual inspection will give a clue.
4936 * Selection of bootstrap image (vs. other images) is arbitrary. */
4937 image
= (__le32
*)priv
->ucode_boot
.v_addr
;
4938 len
= priv
->ucode_boot
.len
;
4939 rc
= iwl3945_verify_inst_full(priv
, image
, len
);
4944 static void iwl3945_nic_start(struct iwl_priv
*priv
)
4946 /* Remove all resets to allow NIC to operate */
4947 iwl_write32(priv
, CSR_RESET
, 0);
4951 * iwl3945_read_ucode - Read uCode images from disk file.
4953 * Copy into buffers for card to fetch via bus-mastering
4955 static int iwl3945_read_ucode(struct iwl_priv
*priv
)
4957 struct iwl_ucode
*ucode
;
4958 int ret
= -EINVAL
, index
;
4959 const struct firmware
*ucode_raw
;
4960 /* firmware file name contains uCode/driver compatibility version */
4961 const char *name_pre
= priv
->cfg
->fw_name_pre
;
4962 const unsigned int api_max
= priv
->cfg
->ucode_api_max
;
4963 const unsigned int api_min
= priv
->cfg
->ucode_api_min
;
4967 u32 api_ver
, inst_size
, data_size
, init_size
, init_data_size
, boot_size
;
4969 /* Ask kernel firmware_class module to get the boot firmware off disk.
4970 * request_firmware() is synchronous, file is in memory on return. */
4971 for (index
= api_max
; index
>= api_min
; index
--) {
4972 sprintf(buf
, "%s%u%s", name_pre
, index
, ".ucode");
4973 ret
= request_firmware(&ucode_raw
, buf
, &priv
->pci_dev
->dev
);
4975 IWL_ERR(priv
, "%s firmware file req failed: %d\n",
4982 if (index
< api_max
)
4983 IWL_ERR(priv
, "Loaded firmware %s, "
4984 "which is deprecated. "
4985 " Please use API v%u instead.\n",
4987 IWL_DEBUG_INFO("Got firmware '%s' file (%zd bytes) from disk\n",
4988 buf
, ucode_raw
->size
);
4996 /* Make sure that we got at least our header! */
4997 if (ucode_raw
->size
< sizeof(*ucode
)) {
4998 IWL_ERR(priv
, "File size way too small!\n");
5003 /* Data from ucode file: header followed by uCode images */
5004 ucode
= (void *)ucode_raw
->data
;
5006 priv
->ucode_ver
= le32_to_cpu(ucode
->ver
);
5007 api_ver
= IWL_UCODE_API(priv
->ucode_ver
);
5008 inst_size
= le32_to_cpu(ucode
->inst_size
);
5009 data_size
= le32_to_cpu(ucode
->data_size
);
5010 init_size
= le32_to_cpu(ucode
->init_size
);
5011 init_data_size
= le32_to_cpu(ucode
->init_data_size
);
5012 boot_size
= le32_to_cpu(ucode
->boot_size
);
5014 /* api_ver should match the api version forming part of the
5015 * firmware filename ... but we don't check for that and only rely
5016 * on the API version read from firware header from here on forward */
5018 if (api_ver
< api_min
|| api_ver
> api_max
) {
5019 IWL_ERR(priv
, "Driver unable to support your firmware API. "
5020 "Driver supports v%u, firmware is v%u.\n",
5022 priv
->ucode_ver
= 0;
5026 if (api_ver
!= api_max
)
5027 IWL_ERR(priv
, "Firmware has old API version. Expected %u, "
5028 "got %u. New firmware can be obtained "
5029 "from http://www.intellinuxwireless.org.\n",
5032 IWL_INFO(priv
, "loaded firmware version %u.%u.%u.%u\n",
5033 IWL_UCODE_MAJOR(priv
->ucode_ver
),
5034 IWL_UCODE_MINOR(priv
->ucode_ver
),
5035 IWL_UCODE_API(priv
->ucode_ver
),
5036 IWL_UCODE_SERIAL(priv
->ucode_ver
));
5038 IWL_DEBUG_INFO("f/w package hdr ucode version raw = 0x%x\n",
5040 IWL_DEBUG_INFO("f/w package hdr runtime inst size = %u\n", inst_size
);
5041 IWL_DEBUG_INFO("f/w package hdr runtime data size = %u\n", data_size
);
5042 IWL_DEBUG_INFO("f/w package hdr init inst size = %u\n", init_size
);
5043 IWL_DEBUG_INFO("f/w package hdr init data size = %u\n", init_data_size
);
5044 IWL_DEBUG_INFO("f/w package hdr boot inst size = %u\n", boot_size
);
5047 /* Verify size of file vs. image size info in file's header */
5048 if (ucode_raw
->size
< sizeof(*ucode
) +
5049 inst_size
+ data_size
+ init_size
+
5050 init_data_size
+ boot_size
) {
5052 IWL_DEBUG_INFO("uCode file size %d too small\n",
5053 (int)ucode_raw
->size
);
5058 /* Verify that uCode images will fit in card's SRAM */
5059 if (inst_size
> IWL39_MAX_INST_SIZE
) {
5060 IWL_DEBUG_INFO("uCode instr len %d too large to fit in\n",
5066 if (data_size
> IWL39_MAX_DATA_SIZE
) {
5067 IWL_DEBUG_INFO("uCode data len %d too large to fit in\n",
5072 if (init_size
> IWL39_MAX_INST_SIZE
) {
5073 IWL_DEBUG_INFO("uCode init instr len %d too large to fit in\n",
5078 if (init_data_size
> IWL39_MAX_DATA_SIZE
) {
5079 IWL_DEBUG_INFO("uCode init data len %d too large to fit in\n",
5084 if (boot_size
> IWL39_MAX_BSM_SIZE
) {
5085 IWL_DEBUG_INFO("uCode boot instr len %d too large to fit in\n",
5091 /* Allocate ucode buffers for card's bus-master loading ... */
5093 /* Runtime instructions and 2 copies of data:
5094 * 1) unmodified from disk
5095 * 2) backup cache for save/restore during power-downs */
5096 priv
->ucode_code
.len
= inst_size
;
5097 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_code
);
5099 priv
->ucode_data
.len
= data_size
;
5100 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_data
);
5102 priv
->ucode_data_backup
.len
= data_size
;
5103 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_data_backup
);
5105 if (!priv
->ucode_code
.v_addr
|| !priv
->ucode_data
.v_addr
||
5106 !priv
->ucode_data_backup
.v_addr
)
5109 /* Initialization instructions and data */
5110 if (init_size
&& init_data_size
) {
5111 priv
->ucode_init
.len
= init_size
;
5112 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_init
);
5114 priv
->ucode_init_data
.len
= init_data_size
;
5115 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_init_data
);
5117 if (!priv
->ucode_init
.v_addr
|| !priv
->ucode_init_data
.v_addr
)
5121 /* Bootstrap (instructions only, no data) */
5123 priv
->ucode_boot
.len
= boot_size
;
5124 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_boot
);
5126 if (!priv
->ucode_boot
.v_addr
)
5130 /* Copy images into buffers for card's bus-master reads ... */
5132 /* Runtime instructions (first block of data in file) */
5133 src
= &ucode
->data
[0];
5134 len
= priv
->ucode_code
.len
;
5135 IWL_DEBUG_INFO("Copying (but not loading) uCode instr len %Zd\n", len
);
5136 memcpy(priv
->ucode_code
.v_addr
, src
, len
);
5137 IWL_DEBUG_INFO("uCode instr buf vaddr = 0x%p, paddr = 0x%08x\n",
5138 priv
->ucode_code
.v_addr
, (u32
)priv
->ucode_code
.p_addr
);
5140 /* Runtime data (2nd block)
5141 * NOTE: Copy into backup buffer will be done in iwl3945_up() */
5142 src
= &ucode
->data
[inst_size
];
5143 len
= priv
->ucode_data
.len
;
5144 IWL_DEBUG_INFO("Copying (but not loading) uCode data len %Zd\n", len
);
5145 memcpy(priv
->ucode_data
.v_addr
, src
, len
);
5146 memcpy(priv
->ucode_data_backup
.v_addr
, src
, len
);
5148 /* Initialization instructions (3rd block) */
5150 src
= &ucode
->data
[inst_size
+ data_size
];
5151 len
= priv
->ucode_init
.len
;
5152 IWL_DEBUG_INFO("Copying (but not loading) init instr len %Zd\n",
5154 memcpy(priv
->ucode_init
.v_addr
, src
, len
);
5157 /* Initialization data (4th block) */
5158 if (init_data_size
) {
5159 src
= &ucode
->data
[inst_size
+ data_size
+ init_size
];
5160 len
= priv
->ucode_init_data
.len
;
5161 IWL_DEBUG_INFO("Copying (but not loading) init data len %d\n",
5163 memcpy(priv
->ucode_init_data
.v_addr
, src
, len
);
5166 /* Bootstrap instructions (5th block) */
5167 src
= &ucode
->data
[inst_size
+ data_size
+ init_size
+ init_data_size
];
5168 len
= priv
->ucode_boot
.len
;
5169 IWL_DEBUG_INFO("Copying (but not loading) boot instr len %d\n",
5171 memcpy(priv
->ucode_boot
.v_addr
, src
, len
);
5173 /* We have our copies now, allow OS release its copies */
5174 release_firmware(ucode_raw
);
5178 IWL_ERR(priv
, "failed to allocate pci memory\n");
5180 iwl3945_dealloc_ucode_pci(priv
);
5183 release_firmware(ucode_raw
);
5191 * iwl3945_set_ucode_ptrs - Set uCode address location
5193 * Tell initialization uCode where to find runtime uCode.
5195 * BSM registers initially contain pointers to initialization uCode.
5196 * We need to replace them to load runtime uCode inst and data,
5197 * and to save runtime data when powering down.
5199 static int iwl3945_set_ucode_ptrs(struct iwl_priv
*priv
)
5204 unsigned long flags
;
5206 /* bits 31:0 for 3945 */
5207 pinst
= priv
->ucode_code
.p_addr
;
5208 pdata
= priv
->ucode_data_backup
.p_addr
;
5210 spin_lock_irqsave(&priv
->lock
, flags
);
5211 rc
= iwl_grab_nic_access(priv
);
5213 spin_unlock_irqrestore(&priv
->lock
, flags
);
5217 /* Tell bootstrap uCode where to find image to load */
5218 iwl_write_prph(priv
, BSM_DRAM_INST_PTR_REG
, pinst
);
5219 iwl_write_prph(priv
, BSM_DRAM_DATA_PTR_REG
, pdata
);
5220 iwl_write_prph(priv
, BSM_DRAM_DATA_BYTECOUNT_REG
,
5221 priv
->ucode_data
.len
);
5223 /* Inst byte count must be last to set up, bit 31 signals uCode
5224 * that all new ptr/size info is in place */
5225 iwl_write_prph(priv
, BSM_DRAM_INST_BYTECOUNT_REG
,
5226 priv
->ucode_code
.len
| BSM_DRAM_INST_LOAD
);
5228 iwl_release_nic_access(priv
);
5230 spin_unlock_irqrestore(&priv
->lock
, flags
);
5232 IWL_DEBUG_INFO("Runtime uCode pointers are set.\n");
5238 * iwl3945_init_alive_start - Called after REPLY_ALIVE notification received
5240 * Called after REPLY_ALIVE notification received from "initialize" uCode.
5242 * Tell "initialize" uCode to go ahead and load the runtime uCode.
5244 static void iwl3945_init_alive_start(struct iwl_priv
*priv
)
5246 /* Check alive response for "valid" sign from uCode */
5247 if (priv
->card_alive_init
.is_valid
!= UCODE_VALID_OK
) {
5248 /* We had an error bringing up the hardware, so take it
5249 * all the way back down so we can try again */
5250 IWL_DEBUG_INFO("Initialize Alive failed.\n");
5254 /* Bootstrap uCode has loaded initialize uCode ... verify inst image.
5255 * This is a paranoid check, because we would not have gotten the
5256 * "initialize" alive if code weren't properly loaded. */
5257 if (iwl3945_verify_ucode(priv
)) {
5258 /* Runtime instruction load was bad;
5259 * take it all the way back down so we can try again */
5260 IWL_DEBUG_INFO("Bad \"initialize\" uCode load.\n");
5264 /* Send pointers to protocol/runtime uCode image ... init code will
5265 * load and launch runtime uCode, which will send us another "Alive"
5267 IWL_DEBUG_INFO("Initialization Alive received.\n");
5268 if (iwl3945_set_ucode_ptrs(priv
)) {
5269 /* Runtime instruction load won't happen;
5270 * take it all the way back down so we can try again */
5271 IWL_DEBUG_INFO("Couldn't set up uCode pointers.\n");
5277 queue_work(priv
->workqueue
, &priv
->restart
);
5282 static int iwl3945_mac_beacon_update(struct ieee80211_hw
*hw
,
5283 struct sk_buff
*skb
);
5286 * iwl3945_alive_start - called after REPLY_ALIVE notification received
5287 * from protocol/runtime uCode (initialization uCode's
5288 * Alive gets handled by iwl3945_init_alive_start()).
5290 static void iwl3945_alive_start(struct iwl_priv
*priv
)
5293 int thermal_spin
= 0;
5296 IWL_DEBUG_INFO("Runtime Alive received.\n");
5298 if (priv
->card_alive
.is_valid
!= UCODE_VALID_OK
) {
5299 /* We had an error bringing up the hardware, so take it
5300 * all the way back down so we can try again */
5301 IWL_DEBUG_INFO("Alive failed.\n");
5305 /* Initialize uCode has loaded Runtime uCode ... verify inst image.
5306 * This is a paranoid check, because we would not have gotten the
5307 * "runtime" alive if code weren't properly loaded. */
5308 if (iwl3945_verify_ucode(priv
)) {
5309 /* Runtime instruction load was bad;
5310 * take it all the way back down so we can try again */
5311 IWL_DEBUG_INFO("Bad runtime uCode load.\n");
5315 iwl3945_clear_stations_table(priv
);
5317 rc
= iwl_grab_nic_access(priv
);
5319 IWL_WARN(priv
, "Can not read RFKILL status from adapter\n");
5323 rfkill
= iwl_read_prph(priv
, APMG_RFKILL_REG
);
5324 IWL_DEBUG_INFO("RFKILL status: 0x%x\n", rfkill
);
5325 iwl_release_nic_access(priv
);
5328 clear_bit(STATUS_RF_KILL_HW
, &priv
->status
);
5329 /* if RFKILL is not on, then wait for thermal
5330 * sensor in adapter to kick in */
5331 while (iwl3945_hw_get_temperature(priv
) == 0) {
5337 IWL_DEBUG_INFO("Thermal calibration took %dus\n",
5340 set_bit(STATUS_RF_KILL_HW
, &priv
->status
);
5342 /* After the ALIVE response, we can send commands to 3945 uCode */
5343 set_bit(STATUS_ALIVE
, &priv
->status
);
5345 /* Clear out the uCode error bit if it is set */
5346 clear_bit(STATUS_FW_ERROR
, &priv
->status
);
5348 if (iwl_is_rfkill(priv
))
5351 ieee80211_wake_queues(priv
->hw
);
5353 priv
->active_rate
= priv
->rates_mask
;
5354 priv
->active_rate_basic
= priv
->rates_mask
& IWL_BASIC_RATES_MASK
;
5356 iwl3945_send_power_mode(priv
, IWL_POWER_LEVEL(priv
->power_mode
));
5358 if (iwl3945_is_associated(priv
)) {
5359 struct iwl3945_rxon_cmd
*active_rxon
=
5360 (struct iwl3945_rxon_cmd
*)(&priv
->active39_rxon
);
5362 memcpy(&priv
->staging39_rxon
, &priv
->active39_rxon
,
5363 sizeof(priv
->staging39_rxon
));
5364 active_rxon
->filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
5366 /* Initialize our rx_config data */
5367 iwl3945_connection_init_rx_config(priv
, priv
->iw_mode
);
5368 memcpy(priv
->staging39_rxon
.node_addr
, priv
->mac_addr
, ETH_ALEN
);
5371 /* Configure Bluetooth device coexistence support */
5372 iwl3945_send_bt_config(priv
);
5374 /* Configure the adapter for unassociated operation */
5375 iwl3945_commit_rxon(priv
);
5377 iwl3945_reg_txpower_periodic(priv
);
5379 iwl3945_led_register(priv
);
5381 IWL_DEBUG_INFO("ALIVE processing complete.\n");
5382 set_bit(STATUS_READY
, &priv
->status
);
5383 wake_up_interruptible(&priv
->wait_command_queue
);
5385 if (priv
->error_recovering
)
5386 iwl3945_error_recovery(priv
);
5388 /* reassociate for ADHOC mode */
5389 if (priv
->vif
&& (priv
->iw_mode
== NL80211_IFTYPE_ADHOC
)) {
5390 struct sk_buff
*beacon
= ieee80211_beacon_get(priv
->hw
,
5393 iwl3945_mac_beacon_update(priv
->hw
, beacon
);
5399 queue_work(priv
->workqueue
, &priv
->restart
);
5402 static void iwl3945_cancel_deferred_work(struct iwl_priv
*priv
);
5404 static void __iwl3945_down(struct iwl_priv
*priv
)
5406 unsigned long flags
;
5407 int exit_pending
= test_bit(STATUS_EXIT_PENDING
, &priv
->status
);
5408 struct ieee80211_conf
*conf
= NULL
;
5410 IWL_DEBUG_INFO(DRV_NAME
" is going down\n");
5412 conf
= ieee80211_get_hw_conf(priv
->hw
);
5415 set_bit(STATUS_EXIT_PENDING
, &priv
->status
);
5417 iwl3945_led_unregister(priv
);
5418 iwl3945_clear_stations_table(priv
);
5420 /* Unblock any waiting calls */
5421 wake_up_interruptible_all(&priv
->wait_command_queue
);
5423 /* Wipe out the EXIT_PENDING status bit if we are not actually
5424 * exiting the module */
5426 clear_bit(STATUS_EXIT_PENDING
, &priv
->status
);
5428 /* stop and reset the on-board processor */
5429 iwl_write32(priv
, CSR_RESET
, CSR_RESET_REG_FLAG_NEVO_RESET
);
5431 /* tell the device to stop sending interrupts */
5432 spin_lock_irqsave(&priv
->lock
, flags
);
5433 iwl3945_disable_interrupts(priv
);
5434 spin_unlock_irqrestore(&priv
->lock
, flags
);
5435 iwl_synchronize_irq(priv
);
5437 if (priv
->mac80211_registered
)
5438 ieee80211_stop_queues(priv
->hw
);
5440 /* If we have not previously called iwl3945_init() then
5441 * clear all bits but the RF Kill and SUSPEND bits and return */
5442 if (!iwl_is_init(priv
)) {
5443 priv
->status
= test_bit(STATUS_RF_KILL_HW
, &priv
->status
) <<
5445 test_bit(STATUS_RF_KILL_SW
, &priv
->status
) <<
5447 test_bit(STATUS_GEO_CONFIGURED
, &priv
->status
) <<
5448 STATUS_GEO_CONFIGURED
|
5449 test_bit(STATUS_IN_SUSPEND
, &priv
->status
) <<
5451 test_bit(STATUS_EXIT_PENDING
, &priv
->status
) <<
5452 STATUS_EXIT_PENDING
;
5456 /* ...otherwise clear out all the status bits but the RF Kill and
5457 * SUSPEND bits and continue taking the NIC down. */
5458 priv
->status
&= test_bit(STATUS_RF_KILL_HW
, &priv
->status
) <<
5460 test_bit(STATUS_RF_KILL_SW
, &priv
->status
) <<
5462 test_bit(STATUS_GEO_CONFIGURED
, &priv
->status
) <<
5463 STATUS_GEO_CONFIGURED
|
5464 test_bit(STATUS_IN_SUSPEND
, &priv
->status
) <<
5466 test_bit(STATUS_FW_ERROR
, &priv
->status
) <<
5468 test_bit(STATUS_EXIT_PENDING
, &priv
->status
) <<
5469 STATUS_EXIT_PENDING
;
5471 spin_lock_irqsave(&priv
->lock
, flags
);
5472 iwl_clear_bit(priv
, CSR_GP_CNTRL
, CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ
);
5473 spin_unlock_irqrestore(&priv
->lock
, flags
);
5475 iwl3945_hw_txq_ctx_stop(priv
);
5476 iwl3945_hw_rxq_stop(priv
);
5478 spin_lock_irqsave(&priv
->lock
, flags
);
5479 if (!iwl_grab_nic_access(priv
)) {
5480 iwl_write_prph(priv
, APMG_CLK_DIS_REG
,
5481 APMG_CLK_VAL_DMA_CLK_RQT
);
5482 iwl_release_nic_access(priv
);
5484 spin_unlock_irqrestore(&priv
->lock
, flags
);
5488 priv
->cfg
->ops
->lib
->apm_ops
.reset(priv
);
5490 memset(&priv
->card_alive
, 0, sizeof(struct iwl_alive_resp
));
5492 if (priv
->ibss_beacon
)
5493 dev_kfree_skb(priv
->ibss_beacon
);
5494 priv
->ibss_beacon
= NULL
;
5496 /* clear out any free frames */
5497 iwl3945_clear_free_frames(priv
);
5500 static void iwl3945_down(struct iwl_priv
*priv
)
5502 mutex_lock(&priv
->mutex
);
5503 __iwl3945_down(priv
);
5504 mutex_unlock(&priv
->mutex
);
5506 iwl3945_cancel_deferred_work(priv
);
5509 #define MAX_HW_RESTARTS 5
5511 static int __iwl3945_up(struct iwl_priv
*priv
)
5515 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
)) {
5516 IWL_WARN(priv
, "Exit pending; will not bring the NIC up\n");
5520 if (test_bit(STATUS_RF_KILL_SW
, &priv
->status
)) {
5521 IWL_WARN(priv
, "Radio disabled by SW RF kill (module "
5526 if (!priv
->ucode_data_backup
.v_addr
|| !priv
->ucode_data
.v_addr
) {
5527 IWL_ERR(priv
, "ucode not available for device bring up\n");
5531 /* If platform's RF_KILL switch is NOT set to KILL */
5532 if (iwl_read32(priv
, CSR_GP_CNTRL
) &
5533 CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW
)
5534 clear_bit(STATUS_RF_KILL_HW
, &priv
->status
);
5536 set_bit(STATUS_RF_KILL_HW
, &priv
->status
);
5537 if (!test_bit(STATUS_IN_SUSPEND
, &priv
->status
)) {
5538 IWL_WARN(priv
, "Radio disabled by HW RF Kill switch\n");
5543 iwl_write32(priv
, CSR_INT
, 0xFFFFFFFF);
5545 rc
= iwl3945_hw_nic_init(priv
);
5547 IWL_ERR(priv
, "Unable to int nic\n");
5551 /* make sure rfkill handshake bits are cleared */
5552 iwl_write32(priv
, CSR_UCODE_DRV_GP1_CLR
, CSR_UCODE_SW_BIT_RFKILL
);
5553 iwl_write32(priv
, CSR_UCODE_DRV_GP1_CLR
,
5554 CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED
);
5556 /* clear (again), then enable host interrupts */
5557 iwl_write32(priv
, CSR_INT
, 0xFFFFFFFF);
5558 iwl3945_enable_interrupts(priv
);
5560 /* really make sure rfkill handshake bits are cleared */
5561 iwl_write32(priv
, CSR_UCODE_DRV_GP1_CLR
, CSR_UCODE_SW_BIT_RFKILL
);
5562 iwl_write32(priv
, CSR_UCODE_DRV_GP1_CLR
, CSR_UCODE_SW_BIT_RFKILL
);
5564 /* Copy original ucode data image from disk into backup cache.
5565 * This will be used to initialize the on-board processor's
5566 * data SRAM for a clean start when the runtime program first loads. */
5567 memcpy(priv
->ucode_data_backup
.v_addr
, priv
->ucode_data
.v_addr
,
5568 priv
->ucode_data
.len
);
5570 /* We return success when we resume from suspend and rf_kill is on. */
5571 if (test_bit(STATUS_RF_KILL_HW
, &priv
->status
))
5574 for (i
= 0; i
< MAX_HW_RESTARTS
; i
++) {
5576 iwl3945_clear_stations_table(priv
);
5578 /* load bootstrap state machine,
5579 * load bootstrap program into processor's memory,
5580 * prepare to load the "initialize" uCode */
5581 priv
->cfg
->ops
->lib
->load_ucode(priv
);
5585 "Unable to set up bootstrap uCode: %d\n", rc
);
5589 /* start card; "initialize" will load runtime ucode */
5590 iwl3945_nic_start(priv
);
5592 IWL_DEBUG_INFO(DRV_NAME
" is coming up\n");
5597 set_bit(STATUS_EXIT_PENDING
, &priv
->status
);
5598 __iwl3945_down(priv
);
5599 clear_bit(STATUS_EXIT_PENDING
, &priv
->status
);
5601 /* tried to restart and config the device for as long as our
5602 * patience could withstand */
5603 IWL_ERR(priv
, "Unable to initialize device after %d attempts.\n", i
);
5608 /*****************************************************************************
5610 * Workqueue callbacks
5612 *****************************************************************************/
5614 static void iwl3945_bg_init_alive_start(struct work_struct
*data
)
5616 struct iwl_priv
*priv
=
5617 container_of(data
, struct iwl_priv
, init_alive_start
.work
);
5619 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
5622 mutex_lock(&priv
->mutex
);
5623 iwl3945_init_alive_start(priv
);
5624 mutex_unlock(&priv
->mutex
);
5627 static void iwl3945_bg_alive_start(struct work_struct
*data
)
5629 struct iwl_priv
*priv
=
5630 container_of(data
, struct iwl_priv
, alive_start
.work
);
5632 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
5635 mutex_lock(&priv
->mutex
);
5636 iwl3945_alive_start(priv
);
5637 mutex_unlock(&priv
->mutex
);
5640 static void iwl3945_bg_rf_kill(struct work_struct
*work
)
5642 struct iwl_priv
*priv
= container_of(work
, struct iwl_priv
, rf_kill
);
5644 wake_up_interruptible(&priv
->wait_command_queue
);
5646 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
5649 mutex_lock(&priv
->mutex
);
5651 if (!iwl_is_rfkill(priv
)) {
5652 IWL_DEBUG(IWL_DL_INFO
| IWL_DL_RF_KILL
,
5653 "HW and/or SW RF Kill no longer active, restarting "
5655 if (!test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
5656 queue_work(priv
->workqueue
, &priv
->restart
);
5659 if (!test_bit(STATUS_RF_KILL_HW
, &priv
->status
))
5660 IWL_DEBUG_RF_KILL("Can not turn radio back on - "
5661 "disabled by SW switch\n");
5663 IWL_WARN(priv
, "Radio Frequency Kill Switch is On:\n"
5664 "Kill switch must be turned off for "
5665 "wireless networking to work.\n");
5668 mutex_unlock(&priv
->mutex
);
5669 iwl3945_rfkill_set_hw_state(priv
);
5672 #define IWL_SCAN_CHECK_WATCHDOG (7 * HZ)
5674 static void iwl3945_bg_scan_check(struct work_struct
*data
)
5676 struct iwl_priv
*priv
=
5677 container_of(data
, struct iwl_priv
, scan_check
.work
);
5679 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
5682 mutex_lock(&priv
->mutex
);
5683 if (test_bit(STATUS_SCANNING
, &priv
->status
) ||
5684 test_bit(STATUS_SCAN_ABORTING
, &priv
->status
)) {
5685 IWL_DEBUG(IWL_DL_INFO
| IWL_DL_SCAN
,
5686 "Scan completion watchdog resetting adapter (%dms)\n",
5687 jiffies_to_msecs(IWL_SCAN_CHECK_WATCHDOG
));
5689 if (!test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
5690 iwl3945_send_scan_abort(priv
);
5692 mutex_unlock(&priv
->mutex
);
5695 static void iwl3945_bg_request_scan(struct work_struct
*data
)
5697 struct iwl_priv
*priv
=
5698 container_of(data
, struct iwl_priv
, request_scan
);
5699 struct iwl_host_cmd cmd
= {
5700 .id
= REPLY_SCAN_CMD
,
5701 .len
= sizeof(struct iwl3945_scan_cmd
),
5702 .meta
.flags
= CMD_SIZE_HUGE
,
5705 struct iwl3945_scan_cmd
*scan
;
5706 struct ieee80211_conf
*conf
= NULL
;
5708 enum ieee80211_band band
;
5709 DECLARE_SSID_BUF(ssid
);
5711 conf
= ieee80211_get_hw_conf(priv
->hw
);
5713 mutex_lock(&priv
->mutex
);
5715 if (!iwl_is_ready(priv
)) {
5716 IWL_WARN(priv
, "request scan called when driver not ready.\n");
5720 /* Make sure the scan wasn't canceled before this queued work
5721 * was given the chance to run... */
5722 if (!test_bit(STATUS_SCANNING
, &priv
->status
))
5725 /* This should never be called or scheduled if there is currently
5726 * a scan active in the hardware. */
5727 if (test_bit(STATUS_SCAN_HW
, &priv
->status
)) {
5728 IWL_DEBUG_INFO("Multiple concurrent scan requests in parallel. "
5729 "Ignoring second request.\n");
5734 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
)) {
5735 IWL_DEBUG_SCAN("Aborting scan due to device shutdown\n");
5739 if (test_bit(STATUS_SCAN_ABORTING
, &priv
->status
)) {
5740 IWL_DEBUG_HC("Scan request while abort pending. Queuing.\n");
5744 if (iwl_is_rfkill(priv
)) {
5745 IWL_DEBUG_HC("Aborting scan due to RF Kill activation\n");
5749 if (!test_bit(STATUS_READY
, &priv
->status
)) {
5750 IWL_DEBUG_HC("Scan request while uninitialized. Queuing.\n");
5754 if (!priv
->scan_bands
) {
5755 IWL_DEBUG_HC("Aborting scan due to no requested bands\n");
5759 if (!priv
->scan39
) {
5760 priv
->scan39
= kmalloc(sizeof(struct iwl3945_scan_cmd
) +
5761 IWL_MAX_SCAN_SIZE
, GFP_KERNEL
);
5762 if (!priv
->scan39
) {
5767 scan
= priv
->scan39
;
5768 memset(scan
, 0, sizeof(struct iwl3945_scan_cmd
) + IWL_MAX_SCAN_SIZE
);
5770 scan
->quiet_plcp_th
= IWL_PLCP_QUIET_THRESH
;
5771 scan
->quiet_time
= IWL_ACTIVE_QUIET_TIME
;
5773 if (iwl3945_is_associated(priv
)) {
5776 u32 suspend_time
= 100;
5777 u32 scan_suspend_time
= 100;
5778 unsigned long flags
;
5780 IWL_DEBUG_INFO("Scanning while associated...\n");
5782 spin_lock_irqsave(&priv
->lock
, flags
);
5783 interval
= priv
->beacon_int
;
5784 spin_unlock_irqrestore(&priv
->lock
, flags
);
5786 scan
->suspend_time
= 0;
5787 scan
->max_out_time
= cpu_to_le32(200 * 1024);
5789 interval
= suspend_time
;
5791 * suspend time format:
5792 * 0-19: beacon interval in usec (time before exec.)
5794 * 24-31: number of beacons (suspend between channels)
5797 extra
= (suspend_time
/ interval
) << 24;
5798 scan_suspend_time
= 0xFF0FFFFF &
5799 (extra
| ((suspend_time
% interval
) * 1024));
5801 scan
->suspend_time
= cpu_to_le32(scan_suspend_time
);
5802 IWL_DEBUG_SCAN("suspend_time 0x%X beacon interval %d\n",
5803 scan_suspend_time
, interval
);
5806 /* We should add the ability for user to lock to PASSIVE ONLY */
5807 if (priv
->one_direct_scan
) {
5809 ("Kicking off one direct scan for '%s'\n",
5810 print_ssid(ssid
, priv
->direct_ssid
,
5811 priv
->direct_ssid_len
));
5812 scan
->direct_scan
[0].id
= WLAN_EID_SSID
;
5813 scan
->direct_scan
[0].len
= priv
->direct_ssid_len
;
5814 memcpy(scan
->direct_scan
[0].ssid
,
5815 priv
->direct_ssid
, priv
->direct_ssid_len
);
5818 IWL_DEBUG_SCAN("Kicking off one indirect scan.\n");
5820 /* We don't build a direct scan probe request; the uCode will do
5821 * that based on the direct_mask added to each channel entry */
5822 scan
->tx_cmd
.len
= cpu_to_le16(
5823 iwl3945_fill_probe_req(priv
, (struct ieee80211_mgmt
*)scan
->data
,
5824 IWL_MAX_SCAN_SIZE
- sizeof(*scan
)));
5825 scan
->tx_cmd
.tx_flags
= TX_CMD_FLG_SEQ_CTL_MSK
;
5826 scan
->tx_cmd
.sta_id
= priv
->hw_params
.bcast_sta_id
;
5827 scan
->tx_cmd
.stop_time
.life_time
= TX_CMD_LIFE_TIME_INFINITE
;
5829 /* flags + rate selection */
5831 if (priv
->scan_bands
& BIT(IEEE80211_BAND_2GHZ
)) {
5832 scan
->flags
= RXON_FLG_BAND_24G_MSK
| RXON_FLG_AUTO_DETECT_MSK
;
5833 scan
->tx_cmd
.rate
= IWL_RATE_1M_PLCP
;
5834 scan
->good_CRC_th
= 0;
5835 band
= IEEE80211_BAND_2GHZ
;
5836 } else if (priv
->scan_bands
& BIT(IEEE80211_BAND_5GHZ
)) {
5837 scan
->tx_cmd
.rate
= IWL_RATE_6M_PLCP
;
5838 scan
->good_CRC_th
= IWL_GOOD_CRC_TH
;
5839 band
= IEEE80211_BAND_5GHZ
;
5841 IWL_WARN(priv
, "Invalid scan band count\n");
5845 /* select Rx antennas */
5846 scan
->flags
|= iwl3945_get_antenna_flags(priv
);
5848 if (priv
->iw_mode
== NL80211_IFTYPE_MONITOR
)
5849 scan
->filter_flags
= RXON_FILTER_PROMISC_MSK
;
5851 scan
->channel_count
=
5852 iwl3945_get_channels_for_scan(priv
, band
, 1, /* active */
5854 (void *)&scan
->data
[le16_to_cpu(scan
->tx_cmd
.len
)]);
5856 if (scan
->channel_count
== 0) {
5857 IWL_DEBUG_SCAN("channel count %d\n", scan
->channel_count
);
5861 cmd
.len
+= le16_to_cpu(scan
->tx_cmd
.len
) +
5862 scan
->channel_count
* sizeof(struct iwl3945_scan_channel
);
5864 scan
->len
= cpu_to_le16(cmd
.len
);
5866 set_bit(STATUS_SCAN_HW
, &priv
->status
);
5867 rc
= iwl3945_send_cmd_sync(priv
, &cmd
);
5871 queue_delayed_work(priv
->workqueue
, &priv
->scan_check
,
5872 IWL_SCAN_CHECK_WATCHDOG
);
5874 mutex_unlock(&priv
->mutex
);
5878 /* can not perform scan make sure we clear scanning
5879 * bits from status so next scan request can be performed.
5880 * if we dont clear scanning status bit here all next scan
5883 clear_bit(STATUS_SCAN_HW
, &priv
->status
);
5884 clear_bit(STATUS_SCANNING
, &priv
->status
);
5886 /* inform mac80211 scan aborted */
5887 queue_work(priv
->workqueue
, &priv
->scan_completed
);
5888 mutex_unlock(&priv
->mutex
);
5891 static void iwl3945_bg_up(struct work_struct
*data
)
5893 struct iwl_priv
*priv
= container_of(data
, struct iwl_priv
, up
);
5895 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
5898 mutex_lock(&priv
->mutex
);
5900 mutex_unlock(&priv
->mutex
);
5901 iwl3945_rfkill_set_hw_state(priv
);
5904 static void iwl3945_bg_restart(struct work_struct
*data
)
5906 struct iwl_priv
*priv
= container_of(data
, struct iwl_priv
, restart
);
5908 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
5912 queue_work(priv
->workqueue
, &priv
->up
);
5915 static void iwl3945_bg_rx_replenish(struct work_struct
*data
)
5917 struct iwl_priv
*priv
=
5918 container_of(data
, struct iwl_priv
, rx_replenish
);
5920 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
5923 mutex_lock(&priv
->mutex
);
5924 iwl3945_rx_replenish(priv
);
5925 mutex_unlock(&priv
->mutex
);
5928 #define IWL_DELAY_NEXT_SCAN (HZ*2)
5930 static void iwl3945_post_associate(struct iwl_priv
*priv
)
5933 struct ieee80211_conf
*conf
= NULL
;
5935 if (priv
->iw_mode
== NL80211_IFTYPE_AP
) {
5936 IWL_ERR(priv
, "%s Should not be called in AP mode\n", __func__
);
5941 IWL_DEBUG_ASSOC("Associated as %d to: %pM\n",
5942 priv
->assoc_id
, priv
->active39_rxon
.bssid_addr
);
5944 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
5947 if (!priv
->vif
|| !priv
->is_open
)
5950 iwl3945_scan_cancel_timeout(priv
, 200);
5952 conf
= ieee80211_get_hw_conf(priv
->hw
);
5954 priv
->staging39_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
5955 iwl3945_commit_rxon(priv
);
5957 memset(&priv
->rxon_timing
, 0, sizeof(struct iwl_rxon_time_cmd
));
5958 iwl3945_setup_rxon_timing(priv
);
5959 rc
= iwl3945_send_cmd_pdu(priv
, REPLY_RXON_TIMING
,
5960 sizeof(priv
->rxon_timing
), &priv
->rxon_timing
);
5962 IWL_WARN(priv
, "REPLY_RXON_TIMING failed - "
5963 "Attempting to continue.\n");
5965 priv
->staging39_rxon
.filter_flags
|= RXON_FILTER_ASSOC_MSK
;
5967 priv
->staging39_rxon
.assoc_id
= cpu_to_le16(priv
->assoc_id
);
5969 IWL_DEBUG_ASSOC("assoc id %d beacon interval %d\n",
5970 priv
->assoc_id
, priv
->beacon_int
);
5972 if (priv
->assoc_capability
& WLAN_CAPABILITY_SHORT_PREAMBLE
)
5973 priv
->staging39_rxon
.flags
|= RXON_FLG_SHORT_PREAMBLE_MSK
;
5975 priv
->staging39_rxon
.flags
&= ~RXON_FLG_SHORT_PREAMBLE_MSK
;
5977 if (priv
->staging39_rxon
.flags
& RXON_FLG_BAND_24G_MSK
) {
5978 if (priv
->assoc_capability
& WLAN_CAPABILITY_SHORT_SLOT_TIME
)
5979 priv
->staging39_rxon
.flags
|= RXON_FLG_SHORT_SLOT_MSK
;
5981 priv
->staging39_rxon
.flags
&= ~RXON_FLG_SHORT_SLOT_MSK
;
5983 if (priv
->iw_mode
== NL80211_IFTYPE_ADHOC
)
5984 priv
->staging39_rxon
.flags
&= ~RXON_FLG_SHORT_SLOT_MSK
;
5988 iwl3945_commit_rxon(priv
);
5990 switch (priv
->iw_mode
) {
5991 case NL80211_IFTYPE_STATION
:
5992 iwl3945_rate_scale_init(priv
->hw
, IWL_AP_ID
);
5995 case NL80211_IFTYPE_ADHOC
:
5998 iwl3945_add_station(priv
, priv
->bssid
, 0, 0);
5999 iwl3945_sync_sta(priv
, IWL_STA_ID
,
6000 (priv
->band
== IEEE80211_BAND_5GHZ
) ?
6001 IWL_RATE_6M_PLCP
: IWL_RATE_1M_PLCP
,
6003 iwl3945_rate_scale_init(priv
->hw
, IWL_STA_ID
);
6004 iwl3945_send_beacon_cmd(priv
);
6009 IWL_ERR(priv
, "%s Should not be called in %d mode\n",
6010 __func__
, priv
->iw_mode
);
6014 iwl3945_activate_qos(priv
, 0);
6016 /* we have just associated, don't start scan too early */
6017 priv
->next_scan_jiffies
= jiffies
+ IWL_DELAY_NEXT_SCAN
;
6020 static void iwl3945_bg_abort_scan(struct work_struct
*work
)
6022 struct iwl_priv
*priv
= container_of(work
, struct iwl_priv
, abort_scan
);
6024 if (!iwl_is_ready(priv
))
6027 mutex_lock(&priv
->mutex
);
6029 set_bit(STATUS_SCAN_ABORTING
, &priv
->status
);
6030 iwl3945_send_scan_abort(priv
);
6032 mutex_unlock(&priv
->mutex
);
6035 static int iwl3945_mac_config(struct ieee80211_hw
*hw
, u32 changed
);
6037 static void iwl3945_bg_scan_completed(struct work_struct
*work
)
6039 struct iwl_priv
*priv
=
6040 container_of(work
, struct iwl_priv
, scan_completed
);
6042 IWL_DEBUG(IWL_DL_INFO
| IWL_DL_SCAN
, "SCAN complete scan\n");
6044 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6047 if (test_bit(STATUS_CONF_PENDING
, &priv
->status
))
6048 iwl3945_mac_config(priv
->hw
, 0);
6050 ieee80211_scan_completed(priv
->hw
);
6052 /* Since setting the TXPOWER may have been deferred while
6053 * performing the scan, fire one off */
6054 mutex_lock(&priv
->mutex
);
6055 iwl3945_hw_reg_send_txpower(priv
);
6056 mutex_unlock(&priv
->mutex
);
6059 /*****************************************************************************
6061 * mac80211 entry point functions
6063 *****************************************************************************/
6065 #define UCODE_READY_TIMEOUT (2 * HZ)
6067 static int iwl3945_mac_start(struct ieee80211_hw
*hw
)
6069 struct iwl_priv
*priv
= hw
->priv
;
6072 IWL_DEBUG_MAC80211("enter\n");
6074 if (pci_enable_device(priv
->pci_dev
)) {
6075 IWL_ERR(priv
, "Fail to pci_enable_device\n");
6078 pci_restore_state(priv
->pci_dev
);
6079 pci_enable_msi(priv
->pci_dev
);
6081 ret
= request_irq(priv
->pci_dev
->irq
, iwl3945_isr
, IRQF_SHARED
,
6084 IWL_ERR(priv
, "Error allocating IRQ %d\n", priv
->pci_dev
->irq
);
6085 goto out_disable_msi
;
6088 /* we should be verifying the device is ready to be opened */
6089 mutex_lock(&priv
->mutex
);
6091 memset(&priv
->staging39_rxon
, 0, sizeof(struct iwl3945_rxon_cmd
));
6092 /* fetch ucode file from disk, alloc and copy to bus-master buffers ...
6093 * ucode filename and max sizes are card-specific. */
6095 if (!priv
->ucode_code
.len
) {
6096 ret
= iwl3945_read_ucode(priv
);
6098 IWL_ERR(priv
, "Could not read microcode: %d\n", ret
);
6099 mutex_unlock(&priv
->mutex
);
6100 goto out_release_irq
;
6104 ret
= __iwl3945_up(priv
);
6106 mutex_unlock(&priv
->mutex
);
6108 iwl3945_rfkill_set_hw_state(priv
);
6111 goto out_release_irq
;
6113 IWL_DEBUG_INFO("Start UP work.\n");
6115 if (test_bit(STATUS_IN_SUSPEND
, &priv
->status
))
6118 /* Wait for START_ALIVE from ucode. Otherwise callbacks from
6119 * mac80211 will not be run successfully. */
6120 ret
= wait_event_interruptible_timeout(priv
->wait_command_queue
,
6121 test_bit(STATUS_READY
, &priv
->status
),
6122 UCODE_READY_TIMEOUT
);
6124 if (!test_bit(STATUS_READY
, &priv
->status
)) {
6126 "Wait for START_ALIVE timeout after %dms.\n",
6127 jiffies_to_msecs(UCODE_READY_TIMEOUT
));
6129 goto out_release_irq
;
6134 IWL_DEBUG_MAC80211("leave\n");
6138 free_irq(priv
->pci_dev
->irq
, priv
);
6140 pci_disable_msi(priv
->pci_dev
);
6141 pci_disable_device(priv
->pci_dev
);
6143 IWL_DEBUG_MAC80211("leave - failed\n");
6147 static void iwl3945_mac_stop(struct ieee80211_hw
*hw
)
6149 struct iwl_priv
*priv
= hw
->priv
;
6151 IWL_DEBUG_MAC80211("enter\n");
6153 if (!priv
->is_open
) {
6154 IWL_DEBUG_MAC80211("leave - skip\n");
6160 if (iwl_is_ready_rf(priv
)) {
6161 /* stop mac, cancel any scan request and clear
6162 * RXON_FILTER_ASSOC_MSK BIT
6164 mutex_lock(&priv
->mutex
);
6165 iwl3945_scan_cancel_timeout(priv
, 100);
6166 mutex_unlock(&priv
->mutex
);
6171 flush_workqueue(priv
->workqueue
);
6172 free_irq(priv
->pci_dev
->irq
, priv
);
6173 pci_disable_msi(priv
->pci_dev
);
6174 pci_save_state(priv
->pci_dev
);
6175 pci_disable_device(priv
->pci_dev
);
6177 IWL_DEBUG_MAC80211("leave\n");
6180 static int iwl3945_mac_tx(struct ieee80211_hw
*hw
, struct sk_buff
*skb
)
6182 struct iwl_priv
*priv
= hw
->priv
;
6184 IWL_DEBUG_MAC80211("enter\n");
6186 IWL_DEBUG_TX("dev->xmit(%d bytes) at rate 0x%02x\n", skb
->len
,
6187 ieee80211_get_tx_rate(hw
, IEEE80211_SKB_CB(skb
))->bitrate
);
6189 if (iwl3945_tx_skb(priv
, skb
))
6190 dev_kfree_skb_any(skb
);
6192 IWL_DEBUG_MAC80211("leave\n");
6193 return NETDEV_TX_OK
;
6196 static int iwl3945_mac_add_interface(struct ieee80211_hw
*hw
,
6197 struct ieee80211_if_init_conf
*conf
)
6199 struct iwl_priv
*priv
= hw
->priv
;
6200 unsigned long flags
;
6202 IWL_DEBUG_MAC80211("enter: type %d\n", conf
->type
);
6205 IWL_DEBUG_MAC80211("leave - vif != NULL\n");
6209 spin_lock_irqsave(&priv
->lock
, flags
);
6210 priv
->vif
= conf
->vif
;
6211 priv
->iw_mode
= conf
->type
;
6213 spin_unlock_irqrestore(&priv
->lock
, flags
);
6215 mutex_lock(&priv
->mutex
);
6217 if (conf
->mac_addr
) {
6218 IWL_DEBUG_MAC80211("Set: %pM\n", conf
->mac_addr
);
6219 memcpy(priv
->mac_addr
, conf
->mac_addr
, ETH_ALEN
);
6222 if (iwl_is_ready(priv
))
6223 iwl3945_set_mode(priv
, conf
->type
);
6225 mutex_unlock(&priv
->mutex
);
6227 IWL_DEBUG_MAC80211("leave\n");
6232 * iwl3945_mac_config - mac80211 config callback
6234 * We ignore conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME since it seems to
6235 * be set inappropriately and the driver currently sets the hardware up to
6236 * use it whenever needed.
6238 static int iwl3945_mac_config(struct ieee80211_hw
*hw
, u32 changed
)
6240 struct iwl_priv
*priv
= hw
->priv
;
6241 const struct iwl_channel_info
*ch_info
;
6242 struct ieee80211_conf
*conf
= &hw
->conf
;
6243 unsigned long flags
;
6246 mutex_lock(&priv
->mutex
);
6247 IWL_DEBUG_MAC80211("enter to channel %d\n", conf
->channel
->hw_value
);
6249 if (!iwl_is_ready(priv
)) {
6250 IWL_DEBUG_MAC80211("leave - not ready\n");
6255 if (unlikely(!iwl3945_mod_params
.disable_hw_scan
&&
6256 test_bit(STATUS_SCANNING
, &priv
->status
))) {
6257 IWL_DEBUG_MAC80211("leave - scanning\n");
6258 set_bit(STATUS_CONF_PENDING
, &priv
->status
);
6259 mutex_unlock(&priv
->mutex
);
6263 spin_lock_irqsave(&priv
->lock
, flags
);
6265 ch_info
= iwl3945_get_channel_info(priv
, conf
->channel
->band
,
6266 conf
->channel
->hw_value
);
6267 if (!is_channel_valid(ch_info
)) {
6268 IWL_DEBUG_SCAN("Channel %d [%d] is INVALID for this band.\n",
6269 conf
->channel
->hw_value
, conf
->channel
->band
);
6270 IWL_DEBUG_MAC80211("leave - invalid channel\n");
6271 spin_unlock_irqrestore(&priv
->lock
, flags
);
6276 iwl3945_set_rxon_channel(priv
, conf
->channel
->band
, conf
->channel
->hw_value
);
6278 iwl3945_set_flags_for_phymode(priv
, conf
->channel
->band
);
6280 /* The list of supported rates and rate mask can be different
6281 * for each phymode; since the phymode may have changed, reset
6282 * the rate mask to what mac80211 lists */
6283 iwl3945_set_rate(priv
);
6285 spin_unlock_irqrestore(&priv
->lock
, flags
);
6287 #ifdef IEEE80211_CONF_CHANNEL_SWITCH
6288 if (conf
->flags
& IEEE80211_CONF_CHANNEL_SWITCH
) {
6289 iwl3945_hw_channel_switch(priv
, conf
->channel
);
6294 iwl3945_radio_kill_sw(priv
, !conf
->radio_enabled
);
6296 if (!conf
->radio_enabled
) {
6297 IWL_DEBUG_MAC80211("leave - radio disabled\n");
6301 if (iwl_is_rfkill(priv
)) {
6302 IWL_DEBUG_MAC80211("leave - RF kill\n");
6307 iwl3945_set_rate(priv
);
6309 if (memcmp(&priv
->active39_rxon
,
6310 &priv
->staging39_rxon
, sizeof(priv
->staging39_rxon
)))
6311 iwl3945_commit_rxon(priv
);
6313 IWL_DEBUG_INFO("No re-sending same RXON configuration.\n");
6315 IWL_DEBUG_MAC80211("leave\n");
6318 clear_bit(STATUS_CONF_PENDING
, &priv
->status
);
6319 mutex_unlock(&priv
->mutex
);
6323 static void iwl3945_config_ap(struct iwl_priv
*priv
)
6327 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6330 /* The following should be done only at AP bring up */
6331 if (!(iwl3945_is_associated(priv
))) {
6333 /* RXON - unassoc (to set timing command) */
6334 priv
->staging39_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
6335 iwl3945_commit_rxon(priv
);
6338 memset(&priv
->rxon_timing
, 0, sizeof(struct iwl_rxon_time_cmd
));
6339 iwl3945_setup_rxon_timing(priv
);
6340 rc
= iwl3945_send_cmd_pdu(priv
, REPLY_RXON_TIMING
,
6341 sizeof(priv
->rxon_timing
), &priv
->rxon_timing
);
6343 IWL_WARN(priv
, "REPLY_RXON_TIMING failed - "
6344 "Attempting to continue.\n");
6346 /* FIXME: what should be the assoc_id for AP? */
6347 priv
->staging39_rxon
.assoc_id
= cpu_to_le16(priv
->assoc_id
);
6348 if (priv
->assoc_capability
& WLAN_CAPABILITY_SHORT_PREAMBLE
)
6349 priv
->staging39_rxon
.flags
|=
6350 RXON_FLG_SHORT_PREAMBLE_MSK
;
6352 priv
->staging39_rxon
.flags
&=
6353 ~RXON_FLG_SHORT_PREAMBLE_MSK
;
6355 if (priv
->staging39_rxon
.flags
& RXON_FLG_BAND_24G_MSK
) {
6356 if (priv
->assoc_capability
&
6357 WLAN_CAPABILITY_SHORT_SLOT_TIME
)
6358 priv
->staging39_rxon
.flags
|=
6359 RXON_FLG_SHORT_SLOT_MSK
;
6361 priv
->staging39_rxon
.flags
&=
6362 ~RXON_FLG_SHORT_SLOT_MSK
;
6364 if (priv
->iw_mode
== NL80211_IFTYPE_ADHOC
)
6365 priv
->staging39_rxon
.flags
&=
6366 ~RXON_FLG_SHORT_SLOT_MSK
;
6368 /* restore RXON assoc */
6369 priv
->staging39_rxon
.filter_flags
|= RXON_FILTER_ASSOC_MSK
;
6370 iwl3945_commit_rxon(priv
);
6371 iwl3945_add_station(priv
, iwl_bcast_addr
, 0, 0);
6373 iwl3945_send_beacon_cmd(priv
);
6375 /* FIXME - we need to add code here to detect a totally new
6376 * configuration, reset the AP, unassoc, rxon timing, assoc,
6377 * clear sta table, add BCAST sta... */
6380 static int iwl3945_mac_config_interface(struct ieee80211_hw
*hw
,
6381 struct ieee80211_vif
*vif
,
6382 struct ieee80211_if_conf
*conf
)
6384 struct iwl_priv
*priv
= hw
->priv
;
6390 if (priv
->vif
!= vif
) {
6391 IWL_DEBUG_MAC80211("leave - priv->vif != vif\n");
6395 /* handle this temporarily here */
6396 if (priv
->iw_mode
== NL80211_IFTYPE_ADHOC
&&
6397 conf
->changed
& IEEE80211_IFCC_BEACON
) {
6398 struct sk_buff
*beacon
= ieee80211_beacon_get(hw
, vif
);
6401 mutex_lock(&priv
->mutex
);
6402 rc
= iwl3945_mac_beacon_update(hw
, beacon
);
6403 mutex_unlock(&priv
->mutex
);
6408 if (!iwl_is_alive(priv
))
6411 mutex_lock(&priv
->mutex
);
6414 IWL_DEBUG_MAC80211("bssid: %pM\n", conf
->bssid
);
6417 * very dubious code was here; the probe filtering flag is never set:
6419 if (unlikely(test_bit(STATUS_SCANNING, &priv->status)) &&
6420 !(priv->hw->flags & IEEE80211_HW_NO_PROBE_FILTERING)) {
6423 if (priv
->iw_mode
== NL80211_IFTYPE_AP
) {
6425 conf
->bssid
= priv
->mac_addr
;
6426 memcpy(priv
->bssid
, priv
->mac_addr
, ETH_ALEN
);
6427 IWL_DEBUG_MAC80211("bssid was set to: %pM\n",
6430 if (priv
->ibss_beacon
)
6431 dev_kfree_skb(priv
->ibss_beacon
);
6433 priv
->ibss_beacon
= ieee80211_beacon_get(hw
, vif
);
6436 if (iwl_is_rfkill(priv
))
6439 if (conf
->bssid
&& !is_zero_ether_addr(conf
->bssid
) &&
6440 !is_multicast_ether_addr(conf
->bssid
)) {
6441 /* If there is currently a HW scan going on in the background
6442 * then we need to cancel it else the RXON below will fail. */
6443 if (iwl3945_scan_cancel_timeout(priv
, 100)) {
6444 IWL_WARN(priv
, "Aborted scan still in progress "
6446 IWL_DEBUG_MAC80211("leaving - scan abort failed.\n");
6447 mutex_unlock(&priv
->mutex
);
6450 memcpy(priv
->staging39_rxon
.bssid_addr
, conf
->bssid
, ETH_ALEN
);
6452 /* TODO: Audit driver for usage of these members and see
6453 * if mac80211 deprecates them (priv->bssid looks like it
6454 * shouldn't be there, but I haven't scanned the IBSS code
6455 * to verify) - jpk */
6456 memcpy(priv
->bssid
, conf
->bssid
, ETH_ALEN
);
6458 if (priv
->iw_mode
== NL80211_IFTYPE_AP
)
6459 iwl3945_config_ap(priv
);
6461 rc
= iwl3945_commit_rxon(priv
);
6462 if ((priv
->iw_mode
== NL80211_IFTYPE_STATION
) && rc
)
6463 iwl3945_add_station(priv
,
6464 priv
->active39_rxon
.bssid_addr
, 1, 0);
6468 iwl3945_scan_cancel_timeout(priv
, 100);
6469 priv
->staging39_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
6470 iwl3945_commit_rxon(priv
);
6474 IWL_DEBUG_MAC80211("leave\n");
6475 mutex_unlock(&priv
->mutex
);
6480 static void iwl3945_configure_filter(struct ieee80211_hw
*hw
,
6481 unsigned int changed_flags
,
6482 unsigned int *total_flags
,
6483 int mc_count
, struct dev_addr_list
*mc_list
)
6485 struct iwl_priv
*priv
= hw
->priv
;
6486 __le32
*filter_flags
= &priv
->staging39_rxon
.filter_flags
;
6488 IWL_DEBUG_MAC80211("Enter: changed: 0x%x, total: 0x%x\n",
6489 changed_flags
, *total_flags
);
6491 if (changed_flags
& (FIF_OTHER_BSS
| FIF_PROMISC_IN_BSS
)) {
6492 if (*total_flags
& (FIF_OTHER_BSS
| FIF_PROMISC_IN_BSS
))
6493 *filter_flags
|= RXON_FILTER_PROMISC_MSK
;
6495 *filter_flags
&= ~RXON_FILTER_PROMISC_MSK
;
6497 if (changed_flags
& FIF_ALLMULTI
) {
6498 if (*total_flags
& FIF_ALLMULTI
)
6499 *filter_flags
|= RXON_FILTER_ACCEPT_GRP_MSK
;
6501 *filter_flags
&= ~RXON_FILTER_ACCEPT_GRP_MSK
;
6503 if (changed_flags
& FIF_CONTROL
) {
6504 if (*total_flags
& FIF_CONTROL
)
6505 *filter_flags
|= RXON_FILTER_CTL2HOST_MSK
;
6507 *filter_flags
&= ~RXON_FILTER_CTL2HOST_MSK
;
6509 if (changed_flags
& FIF_BCN_PRBRESP_PROMISC
) {
6510 if (*total_flags
& FIF_BCN_PRBRESP_PROMISC
)
6511 *filter_flags
|= RXON_FILTER_BCON_AWARE_MSK
;
6513 *filter_flags
&= ~RXON_FILTER_BCON_AWARE_MSK
;
6516 /* We avoid iwl_commit_rxon here to commit the new filter flags
6517 * since mac80211 will call ieee80211_hw_config immediately.
6518 * (mc_list is not supported at this time). Otherwise, we need to
6519 * queue a background iwl_commit_rxon work.
6522 *total_flags
&= FIF_OTHER_BSS
| FIF_ALLMULTI
| FIF_PROMISC_IN_BSS
|
6523 FIF_BCN_PRBRESP_PROMISC
| FIF_CONTROL
;
6526 static void iwl3945_mac_remove_interface(struct ieee80211_hw
*hw
,
6527 struct ieee80211_if_init_conf
*conf
)
6529 struct iwl_priv
*priv
= hw
->priv
;
6531 IWL_DEBUG_MAC80211("enter\n");
6533 mutex_lock(&priv
->mutex
);
6535 if (iwl_is_ready_rf(priv
)) {
6536 iwl3945_scan_cancel_timeout(priv
, 100);
6537 priv
->staging39_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
6538 iwl3945_commit_rxon(priv
);
6540 if (priv
->vif
== conf
->vif
) {
6542 memset(priv
->bssid
, 0, ETH_ALEN
);
6544 mutex_unlock(&priv
->mutex
);
6546 IWL_DEBUG_MAC80211("leave\n");
6549 #define IWL_DELAY_NEXT_SCAN_AFTER_ASSOC (HZ*6)
6551 static void iwl3945_bss_info_changed(struct ieee80211_hw
*hw
,
6552 struct ieee80211_vif
*vif
,
6553 struct ieee80211_bss_conf
*bss_conf
,
6556 struct iwl_priv
*priv
= hw
->priv
;
6558 IWL_DEBUG_MAC80211("changes = 0x%X\n", changes
);
6560 if (changes
& BSS_CHANGED_ERP_PREAMBLE
) {
6561 IWL_DEBUG_MAC80211("ERP_PREAMBLE %d\n",
6562 bss_conf
->use_short_preamble
);
6563 if (bss_conf
->use_short_preamble
)
6564 priv
->staging39_rxon
.flags
|= RXON_FLG_SHORT_PREAMBLE_MSK
;
6566 priv
->staging39_rxon
.flags
&= ~RXON_FLG_SHORT_PREAMBLE_MSK
;
6569 if (changes
& BSS_CHANGED_ERP_CTS_PROT
) {
6570 IWL_DEBUG_MAC80211("ERP_CTS %d\n", bss_conf
->use_cts_prot
);
6571 if (bss_conf
->use_cts_prot
&& (priv
->band
!= IEEE80211_BAND_5GHZ
))
6572 priv
->staging39_rxon
.flags
|= RXON_FLG_TGG_PROTECT_MSK
;
6574 priv
->staging39_rxon
.flags
&= ~RXON_FLG_TGG_PROTECT_MSK
;
6577 if (changes
& BSS_CHANGED_ASSOC
) {
6578 IWL_DEBUG_MAC80211("ASSOC %d\n", bss_conf
->assoc
);
6579 /* This should never happen as this function should
6580 * never be called from interrupt context. */
6581 if (WARN_ON_ONCE(in_interrupt()))
6583 if (bss_conf
->assoc
) {
6584 priv
->assoc_id
= bss_conf
->aid
;
6585 priv
->beacon_int
= bss_conf
->beacon_int
;
6586 priv
->timestamp
= bss_conf
->timestamp
;
6587 priv
->assoc_capability
= bss_conf
->assoc_capability
;
6588 priv
->next_scan_jiffies
= jiffies
+
6589 IWL_DELAY_NEXT_SCAN_AFTER_ASSOC
;
6590 mutex_lock(&priv
->mutex
);
6591 iwl3945_post_associate(priv
);
6592 mutex_unlock(&priv
->mutex
);
6595 IWL_DEBUG_MAC80211("DISASSOC %d\n", bss_conf
->assoc
);
6597 } else if (changes
&& iwl3945_is_associated(priv
) && priv
->assoc_id
) {
6598 IWL_DEBUG_MAC80211("Associated Changes %d\n", changes
);
6599 iwl3945_send_rxon_assoc(priv
);
6604 static int iwl3945_mac_hw_scan(struct ieee80211_hw
*hw
, u8
*ssid
, size_t len
)
6607 unsigned long flags
;
6608 struct iwl_priv
*priv
= hw
->priv
;
6609 DECLARE_SSID_BUF(ssid_buf
);
6611 IWL_DEBUG_MAC80211("enter\n");
6613 mutex_lock(&priv
->mutex
);
6614 spin_lock_irqsave(&priv
->lock
, flags
);
6616 if (!iwl_is_ready_rf(priv
)) {
6618 IWL_DEBUG_MAC80211("leave - not ready or exit pending\n");
6622 /* we don't schedule scan within next_scan_jiffies period */
6623 if (priv
->next_scan_jiffies
&&
6624 time_after(priv
->next_scan_jiffies
, jiffies
)) {
6628 /* if we just finished scan ask for delay for a broadcast scan */
6629 if ((len
== 0) && priv
->last_scan_jiffies
&&
6630 time_after(priv
->last_scan_jiffies
+ IWL_DELAY_NEXT_SCAN
,
6636 IWL_DEBUG_SCAN("direct scan for %s [%d]\n ",
6637 print_ssid(ssid_buf
, ssid
, len
), (int)len
);
6639 priv
->one_direct_scan
= 1;
6640 priv
->direct_ssid_len
= (u8
)
6641 min((u8
) len
, (u8
) IW_ESSID_MAX_SIZE
);
6642 memcpy(priv
->direct_ssid
, ssid
, priv
->direct_ssid_len
);
6644 priv
->one_direct_scan
= 0;
6646 rc
= iwl3945_scan_initiate(priv
);
6648 IWL_DEBUG_MAC80211("leave\n");
6651 spin_unlock_irqrestore(&priv
->lock
, flags
);
6652 mutex_unlock(&priv
->mutex
);
6657 static int iwl3945_mac_set_key(struct ieee80211_hw
*hw
, enum set_key_cmd cmd
,
6658 const u8
*local_addr
, const u8
*addr
,
6659 struct ieee80211_key_conf
*key
)
6661 struct iwl_priv
*priv
= hw
->priv
;
6665 IWL_DEBUG_MAC80211("enter\n");
6667 if (iwl3945_mod_params
.sw_crypto
) {
6668 IWL_DEBUG_MAC80211("leave - hwcrypto disabled\n");
6672 if (is_zero_ether_addr(addr
))
6673 /* only support pairwise keys */
6676 sta_id
= iwl3945_hw_find_station(priv
, addr
);
6677 if (sta_id
== IWL_INVALID_STATION
) {
6678 IWL_DEBUG_MAC80211("leave - %pM not in station map.\n",
6683 mutex_lock(&priv
->mutex
);
6685 iwl3945_scan_cancel_timeout(priv
, 100);
6689 rc
= iwl3945_update_sta_key_info(priv
, key
, sta_id
);
6691 iwl3945_set_rxon_hwcrypto(priv
, 1);
6692 iwl3945_commit_rxon(priv
);
6693 key
->hw_key_idx
= sta_id
;
6694 IWL_DEBUG_MAC80211("set_key success, using hwcrypto\n");
6695 key
->flags
|= IEEE80211_KEY_FLAG_GENERATE_IV
;
6699 rc
= iwl3945_clear_sta_key_info(priv
, sta_id
);
6701 iwl3945_set_rxon_hwcrypto(priv
, 0);
6702 iwl3945_commit_rxon(priv
);
6703 IWL_DEBUG_MAC80211("disable hwcrypto key\n");
6710 IWL_DEBUG_MAC80211("leave\n");
6711 mutex_unlock(&priv
->mutex
);
6716 static int iwl3945_mac_conf_tx(struct ieee80211_hw
*hw
, u16 queue
,
6717 const struct ieee80211_tx_queue_params
*params
)
6719 struct iwl_priv
*priv
= hw
->priv
;
6720 unsigned long flags
;
6723 IWL_DEBUG_MAC80211("enter\n");
6725 if (!iwl_is_ready_rf(priv
)) {
6726 IWL_DEBUG_MAC80211("leave - RF not ready\n");
6730 if (queue
>= AC_NUM
) {
6731 IWL_DEBUG_MAC80211("leave - queue >= AC_NUM %d\n", queue
);
6735 q
= AC_NUM
- 1 - queue
;
6737 spin_lock_irqsave(&priv
->lock
, flags
);
6739 priv
->qos_data
.def_qos_parm
.ac
[q
].cw_min
= cpu_to_le16(params
->cw_min
);
6740 priv
->qos_data
.def_qos_parm
.ac
[q
].cw_max
= cpu_to_le16(params
->cw_max
);
6741 priv
->qos_data
.def_qos_parm
.ac
[q
].aifsn
= params
->aifs
;
6742 priv
->qos_data
.def_qos_parm
.ac
[q
].edca_txop
=
6743 cpu_to_le16((params
->txop
* 32));
6745 priv
->qos_data
.def_qos_parm
.ac
[q
].reserved1
= 0;
6746 priv
->qos_data
.qos_active
= 1;
6748 spin_unlock_irqrestore(&priv
->lock
, flags
);
6750 mutex_lock(&priv
->mutex
);
6751 if (priv
->iw_mode
== NL80211_IFTYPE_AP
)
6752 iwl3945_activate_qos(priv
, 1);
6753 else if (priv
->assoc_id
&& iwl3945_is_associated(priv
))
6754 iwl3945_activate_qos(priv
, 0);
6756 mutex_unlock(&priv
->mutex
);
6758 IWL_DEBUG_MAC80211("leave\n");
6762 static int iwl3945_mac_get_tx_stats(struct ieee80211_hw
*hw
,
6763 struct ieee80211_tx_queue_stats
*stats
)
6765 struct iwl_priv
*priv
= hw
->priv
;
6767 struct iwl_tx_queue
*txq
;
6768 struct iwl_queue
*q
;
6769 unsigned long flags
;
6771 IWL_DEBUG_MAC80211("enter\n");
6773 if (!iwl_is_ready_rf(priv
)) {
6774 IWL_DEBUG_MAC80211("leave - RF not ready\n");
6778 spin_lock_irqsave(&priv
->lock
, flags
);
6780 for (i
= 0; i
< AC_NUM
; i
++) {
6781 txq
= &priv
->txq
[i
];
6783 avail
= iwl_queue_space(q
);
6785 stats
[i
].len
= q
->n_window
- avail
;
6786 stats
[i
].limit
= q
->n_window
- q
->high_mark
;
6787 stats
[i
].count
= q
->n_window
;
6790 spin_unlock_irqrestore(&priv
->lock
, flags
);
6792 IWL_DEBUG_MAC80211("leave\n");
6797 static void iwl3945_mac_reset_tsf(struct ieee80211_hw
*hw
)
6799 struct iwl_priv
*priv
= hw
->priv
;
6800 unsigned long flags
;
6802 mutex_lock(&priv
->mutex
);
6803 IWL_DEBUG_MAC80211("enter\n");
6805 iwl_reset_qos(priv
);
6807 spin_lock_irqsave(&priv
->lock
, flags
);
6809 priv
->assoc_capability
= 0;
6810 priv
->call_post_assoc_from_beacon
= 0;
6812 /* new association get rid of ibss beacon skb */
6813 if (priv
->ibss_beacon
)
6814 dev_kfree_skb(priv
->ibss_beacon
);
6816 priv
->ibss_beacon
= NULL
;
6818 priv
->beacon_int
= priv
->hw
->conf
.beacon_int
;
6819 priv
->timestamp
= 0;
6820 if ((priv
->iw_mode
== NL80211_IFTYPE_STATION
))
6821 priv
->beacon_int
= 0;
6823 spin_unlock_irqrestore(&priv
->lock
, flags
);
6825 if (!iwl_is_ready_rf(priv
)) {
6826 IWL_DEBUG_MAC80211("leave - not ready\n");
6827 mutex_unlock(&priv
->mutex
);
6831 /* we are restarting association process
6832 * clear RXON_FILTER_ASSOC_MSK bit
6834 if (priv
->iw_mode
!= NL80211_IFTYPE_AP
) {
6835 iwl3945_scan_cancel_timeout(priv
, 100);
6836 priv
->staging39_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
6837 iwl3945_commit_rxon(priv
);
6840 /* Per mac80211.h: This is only used in IBSS mode... */
6841 if (priv
->iw_mode
!= NL80211_IFTYPE_ADHOC
) {
6843 IWL_DEBUG_MAC80211("leave - not in IBSS\n");
6844 mutex_unlock(&priv
->mutex
);
6848 iwl3945_set_rate(priv
);
6850 mutex_unlock(&priv
->mutex
);
6852 IWL_DEBUG_MAC80211("leave\n");
6856 static int iwl3945_mac_beacon_update(struct ieee80211_hw
*hw
, struct sk_buff
*skb
)
6858 struct iwl_priv
*priv
= hw
->priv
;
6859 unsigned long flags
;
6861 IWL_DEBUG_MAC80211("enter\n");
6863 if (!iwl_is_ready_rf(priv
)) {
6864 IWL_DEBUG_MAC80211("leave - RF not ready\n");
6868 if (priv
->iw_mode
!= NL80211_IFTYPE_ADHOC
) {
6869 IWL_DEBUG_MAC80211("leave - not IBSS\n");
6873 spin_lock_irqsave(&priv
->lock
, flags
);
6875 if (priv
->ibss_beacon
)
6876 dev_kfree_skb(priv
->ibss_beacon
);
6878 priv
->ibss_beacon
= skb
;
6882 IWL_DEBUG_MAC80211("leave\n");
6883 spin_unlock_irqrestore(&priv
->lock
, flags
);
6885 iwl_reset_qos(priv
);
6887 iwl3945_post_associate(priv
);
6893 /*****************************************************************************
6897 *****************************************************************************/
6899 #ifdef CONFIG_IWL3945_DEBUG
6902 * The following adds a new attribute to the sysfs representation
6903 * of this device driver (i.e. a new file in /sys/bus/pci/drivers/iwl/)
6904 * used for controlling the debug level.
6906 * See the level definitions in iwl for details.
6908 static ssize_t
show_debug_level(struct device
*d
,
6909 struct device_attribute
*attr
, char *buf
)
6911 struct iwl_priv
*priv
= d
->driver_data
;
6913 return sprintf(buf
, "0x%08X\n", priv
->debug_level
);
6915 static ssize_t
store_debug_level(struct device
*d
,
6916 struct device_attribute
*attr
,
6917 const char *buf
, size_t count
)
6919 struct iwl_priv
*priv
= d
->driver_data
;
6923 ret
= strict_strtoul(buf
, 0, &val
);
6925 IWL_INFO(priv
, "%s is not in hex or decimal form.\n", buf
);
6927 priv
->debug_level
= val
;
6929 return strnlen(buf
, count
);
6932 static DEVICE_ATTR(debug_level
, S_IWUSR
| S_IRUGO
,
6933 show_debug_level
, store_debug_level
);
6935 #endif /* CONFIG_IWL3945_DEBUG */
6937 static ssize_t
show_temperature(struct device
*d
,
6938 struct device_attribute
*attr
, char *buf
)
6940 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
6942 if (!iwl_is_alive(priv
))
6945 return sprintf(buf
, "%d\n", iwl3945_hw_get_temperature(priv
));
6948 static DEVICE_ATTR(temperature
, S_IRUGO
, show_temperature
, NULL
);
6950 static ssize_t
show_tx_power(struct device
*d
,
6951 struct device_attribute
*attr
, char *buf
)
6953 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
6954 return sprintf(buf
, "%d\n", priv
->user_txpower_limit
);
6957 static ssize_t
store_tx_power(struct device
*d
,
6958 struct device_attribute
*attr
,
6959 const char *buf
, size_t count
)
6961 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
6962 char *p
= (char *)buf
;
6965 val
= simple_strtoul(p
, &p
, 10);
6967 IWL_INFO(priv
, ": %s is not in decimal form.\n", buf
);
6969 iwl3945_hw_reg_set_txpower(priv
, val
);
6974 static DEVICE_ATTR(tx_power
, S_IWUSR
| S_IRUGO
, show_tx_power
, store_tx_power
);
6976 static ssize_t
show_flags(struct device
*d
,
6977 struct device_attribute
*attr
, char *buf
)
6979 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
6981 return sprintf(buf
, "0x%04X\n", priv
->active39_rxon
.flags
);
6984 static ssize_t
store_flags(struct device
*d
,
6985 struct device_attribute
*attr
,
6986 const char *buf
, size_t count
)
6988 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
6989 u32 flags
= simple_strtoul(buf
, NULL
, 0);
6991 mutex_lock(&priv
->mutex
);
6992 if (le32_to_cpu(priv
->staging39_rxon
.flags
) != flags
) {
6993 /* Cancel any currently running scans... */
6994 if (iwl3945_scan_cancel_timeout(priv
, 100))
6995 IWL_WARN(priv
, "Could not cancel scan.\n");
6997 IWL_DEBUG_INFO("Committing rxon.flags = 0x%04X\n",
6999 priv
->staging39_rxon
.flags
= cpu_to_le32(flags
);
7000 iwl3945_commit_rxon(priv
);
7003 mutex_unlock(&priv
->mutex
);
7008 static DEVICE_ATTR(flags
, S_IWUSR
| S_IRUGO
, show_flags
, store_flags
);
7010 static ssize_t
show_filter_flags(struct device
*d
,
7011 struct device_attribute
*attr
, char *buf
)
7013 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
7015 return sprintf(buf
, "0x%04X\n",
7016 le32_to_cpu(priv
->active39_rxon
.filter_flags
));
7019 static ssize_t
store_filter_flags(struct device
*d
,
7020 struct device_attribute
*attr
,
7021 const char *buf
, size_t count
)
7023 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
7024 u32 filter_flags
= simple_strtoul(buf
, NULL
, 0);
7026 mutex_lock(&priv
->mutex
);
7027 if (le32_to_cpu(priv
->staging39_rxon
.filter_flags
) != filter_flags
) {
7028 /* Cancel any currently running scans... */
7029 if (iwl3945_scan_cancel_timeout(priv
, 100))
7030 IWL_WARN(priv
, "Could not cancel scan.\n");
7032 IWL_DEBUG_INFO("Committing rxon.filter_flags = "
7033 "0x%04X\n", filter_flags
);
7034 priv
->staging39_rxon
.filter_flags
=
7035 cpu_to_le32(filter_flags
);
7036 iwl3945_commit_rxon(priv
);
7039 mutex_unlock(&priv
->mutex
);
7044 static DEVICE_ATTR(filter_flags
, S_IWUSR
| S_IRUGO
, show_filter_flags
,
7045 store_filter_flags
);
7047 #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT
7049 static ssize_t
show_measurement(struct device
*d
,
7050 struct device_attribute
*attr
, char *buf
)
7052 struct iwl_priv
*priv
= dev_get_drvdata(d
);
7053 struct iwl_spectrum_notification measure_report
;
7054 u32 size
= sizeof(measure_report
), len
= 0, ofs
= 0;
7055 u8
*data
= (u8
*)&measure_report
;
7056 unsigned long flags
;
7058 spin_lock_irqsave(&priv
->lock
, flags
);
7059 if (!(priv
->measurement_status
& MEASUREMENT_READY
)) {
7060 spin_unlock_irqrestore(&priv
->lock
, flags
);
7063 memcpy(&measure_report
, &priv
->measure_report
, size
);
7064 priv
->measurement_status
= 0;
7065 spin_unlock_irqrestore(&priv
->lock
, flags
);
7067 while (size
&& (PAGE_SIZE
- len
)) {
7068 hex_dump_to_buffer(data
+ ofs
, size
, 16, 1, buf
+ len
,
7069 PAGE_SIZE
- len
, 1);
7071 if (PAGE_SIZE
- len
)
7075 size
-= min(size
, 16U);
7081 static ssize_t
store_measurement(struct device
*d
,
7082 struct device_attribute
*attr
,
7083 const char *buf
, size_t count
)
7085 struct iwl_priv
*priv
= dev_get_drvdata(d
);
7086 struct ieee80211_measurement_params params
= {
7087 .channel
= le16_to_cpu(priv
->active39_rxon
.channel
),
7088 .start_time
= cpu_to_le64(priv
->last_tsf
),
7089 .duration
= cpu_to_le16(1),
7091 u8 type
= IWL_MEASURE_BASIC
;
7097 strncpy(buffer
, buf
, min(sizeof(buffer
), count
));
7098 channel
= simple_strtoul(p
, NULL
, 0);
7100 params
.channel
= channel
;
7103 while (*p
&& *p
!= ' ')
7106 type
= simple_strtoul(p
+ 1, NULL
, 0);
7109 IWL_DEBUG_INFO("Invoking measurement of type %d on "
7110 "channel %d (for '%s')\n", type
, params
.channel
, buf
);
7111 iwl3945_get_measurement(priv
, ¶ms
, type
);
7116 static DEVICE_ATTR(measurement
, S_IRUSR
| S_IWUSR
,
7117 show_measurement
, store_measurement
);
7118 #endif /* CONFIG_IWL3945_SPECTRUM_MEASUREMENT */
7120 static ssize_t
store_retry_rate(struct device
*d
,
7121 struct device_attribute
*attr
,
7122 const char *buf
, size_t count
)
7124 struct iwl_priv
*priv
= dev_get_drvdata(d
);
7126 priv
->retry_rate
= simple_strtoul(buf
, NULL
, 0);
7127 if (priv
->retry_rate
<= 0)
7128 priv
->retry_rate
= 1;
7133 static ssize_t
show_retry_rate(struct device
*d
,
7134 struct device_attribute
*attr
, char *buf
)
7136 struct iwl_priv
*priv
= dev_get_drvdata(d
);
7137 return sprintf(buf
, "%d", priv
->retry_rate
);
7140 static DEVICE_ATTR(retry_rate
, S_IWUSR
| S_IRUSR
, show_retry_rate
,
7143 static ssize_t
store_power_level(struct device
*d
,
7144 struct device_attribute
*attr
,
7145 const char *buf
, size_t count
)
7147 struct iwl_priv
*priv
= dev_get_drvdata(d
);
7151 mode
= simple_strtoul(buf
, NULL
, 0);
7152 mutex_lock(&priv
->mutex
);
7154 if (!iwl_is_ready(priv
)) {
7159 if ((mode
< 1) || (mode
> IWL39_POWER_LIMIT
) ||
7160 (mode
== IWL39_POWER_AC
))
7161 mode
= IWL39_POWER_AC
;
7163 mode
|= IWL_POWER_ENABLED
;
7165 if (mode
!= priv
->power_mode
) {
7166 rc
= iwl3945_send_power_mode(priv
, IWL_POWER_LEVEL(mode
));
7168 IWL_DEBUG_MAC80211("failed setting power mode.\n");
7171 priv
->power_mode
= mode
;
7177 mutex_unlock(&priv
->mutex
);
7181 #define MAX_WX_STRING 80
7183 /* Values are in microsecond */
7184 static const s32 timeout_duration
[] = {
7191 static const s32 period_duration
[] = {
7199 static ssize_t
show_power_level(struct device
*d
,
7200 struct device_attribute
*attr
, char *buf
)
7202 struct iwl_priv
*priv
= dev_get_drvdata(d
);
7203 int level
= IWL_POWER_LEVEL(priv
->power_mode
);
7206 p
+= sprintf(p
, "%d ", level
);
7208 case IWL_POWER_MODE_CAM
:
7209 case IWL39_POWER_AC
:
7210 p
+= sprintf(p
, "(AC)");
7212 case IWL39_POWER_BATTERY
:
7213 p
+= sprintf(p
, "(BATTERY)");
7217 "(Timeout %dms, Period %dms)",
7218 timeout_duration
[level
- 1] / 1000,
7219 period_duration
[level
- 1] / 1000);
7222 if (!(priv
->power_mode
& IWL_POWER_ENABLED
))
7223 p
+= sprintf(p
, " OFF\n");
7225 p
+= sprintf(p
, " \n");
7231 static DEVICE_ATTR(power_level
, S_IWUSR
| S_IRUSR
, show_power_level
,
7234 static ssize_t
show_channels(struct device
*d
,
7235 struct device_attribute
*attr
, char *buf
)
7237 /* all this shit doesn't belong into sysfs anyway */
7241 static DEVICE_ATTR(channels
, S_IRUSR
, show_channels
, NULL
);
7243 static ssize_t
show_statistics(struct device
*d
,
7244 struct device_attribute
*attr
, char *buf
)
7246 struct iwl_priv
*priv
= dev_get_drvdata(d
);
7247 u32 size
= sizeof(struct iwl3945_notif_statistics
);
7248 u32 len
= 0, ofs
= 0;
7249 u8
*data
= (u8
*)&priv
->statistics_39
;
7252 if (!iwl_is_alive(priv
))
7255 mutex_lock(&priv
->mutex
);
7256 rc
= iwl3945_send_statistics_request(priv
);
7257 mutex_unlock(&priv
->mutex
);
7261 "Error sending statistics request: 0x%08X\n", rc
);
7265 while (size
&& (PAGE_SIZE
- len
)) {
7266 hex_dump_to_buffer(data
+ ofs
, size
, 16, 1, buf
+ len
,
7267 PAGE_SIZE
- len
, 1);
7269 if (PAGE_SIZE
- len
)
7273 size
-= min(size
, 16U);
7279 static DEVICE_ATTR(statistics
, S_IRUGO
, show_statistics
, NULL
);
7281 static ssize_t
show_antenna(struct device
*d
,
7282 struct device_attribute
*attr
, char *buf
)
7284 struct iwl_priv
*priv
= dev_get_drvdata(d
);
7286 if (!iwl_is_alive(priv
))
7289 return sprintf(buf
, "%d\n", priv
->antenna
);
7292 static ssize_t
store_antenna(struct device
*d
,
7293 struct device_attribute
*attr
,
7294 const char *buf
, size_t count
)
7297 struct iwl_priv
*priv
= dev_get_drvdata(d
);
7302 if (sscanf(buf
, "%1i", &ant
) != 1) {
7303 IWL_DEBUG_INFO("not in hex or decimal form.\n");
7307 if ((ant
>= 0) && (ant
<= 2)) {
7308 IWL_DEBUG_INFO("Setting antenna select to %d.\n", ant
);
7309 priv
->antenna
= (enum iwl3945_antenna
)ant
;
7311 IWL_DEBUG_INFO("Bad antenna select value %d.\n", ant
);
7317 static DEVICE_ATTR(antenna
, S_IWUSR
| S_IRUGO
, show_antenna
, store_antenna
);
7319 static ssize_t
show_status(struct device
*d
,
7320 struct device_attribute
*attr
, char *buf
)
7322 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
7323 if (!iwl_is_alive(priv
))
7325 return sprintf(buf
, "0x%08x\n", (int)priv
->status
);
7328 static DEVICE_ATTR(status
, S_IRUGO
, show_status
, NULL
);
7330 static ssize_t
dump_error_log(struct device
*d
,
7331 struct device_attribute
*attr
,
7332 const char *buf
, size_t count
)
7334 char *p
= (char *)buf
;
7337 iwl3945_dump_nic_error_log((struct iwl_priv
*)d
->driver_data
);
7339 return strnlen(buf
, count
);
7342 static DEVICE_ATTR(dump_errors
, S_IWUSR
, NULL
, dump_error_log
);
7344 static ssize_t
dump_event_log(struct device
*d
,
7345 struct device_attribute
*attr
,
7346 const char *buf
, size_t count
)
7348 char *p
= (char *)buf
;
7351 iwl3945_dump_nic_event_log((struct iwl_priv
*)d
->driver_data
);
7353 return strnlen(buf
, count
);
7356 static DEVICE_ATTR(dump_events
, S_IWUSR
, NULL
, dump_event_log
);
7358 /*****************************************************************************
7360 * driver setup and tear down
7362 *****************************************************************************/
7364 static void iwl3945_setup_deferred_work(struct iwl_priv
*priv
)
7366 priv
->workqueue
= create_workqueue(DRV_NAME
);
7368 init_waitqueue_head(&priv
->wait_command_queue
);
7370 INIT_WORK(&priv
->up
, iwl3945_bg_up
);
7371 INIT_WORK(&priv
->restart
, iwl3945_bg_restart
);
7372 INIT_WORK(&priv
->rx_replenish
, iwl3945_bg_rx_replenish
);
7373 INIT_WORK(&priv
->scan_completed
, iwl3945_bg_scan_completed
);
7374 INIT_WORK(&priv
->request_scan
, iwl3945_bg_request_scan
);
7375 INIT_WORK(&priv
->abort_scan
, iwl3945_bg_abort_scan
);
7376 INIT_WORK(&priv
->rf_kill
, iwl3945_bg_rf_kill
);
7377 INIT_WORK(&priv
->beacon_update
, iwl3945_bg_beacon_update
);
7378 INIT_DELAYED_WORK(&priv
->init_alive_start
, iwl3945_bg_init_alive_start
);
7379 INIT_DELAYED_WORK(&priv
->alive_start
, iwl3945_bg_alive_start
);
7380 INIT_DELAYED_WORK(&priv
->scan_check
, iwl3945_bg_scan_check
);
7382 iwl3945_hw_setup_deferred_work(priv
);
7384 tasklet_init(&priv
->irq_tasklet
, (void (*)(unsigned long))
7385 iwl3945_irq_tasklet
, (unsigned long)priv
);
7388 static void iwl3945_cancel_deferred_work(struct iwl_priv
*priv
)
7390 iwl3945_hw_cancel_deferred_work(priv
);
7392 cancel_delayed_work_sync(&priv
->init_alive_start
);
7393 cancel_delayed_work(&priv
->scan_check
);
7394 cancel_delayed_work(&priv
->alive_start
);
7395 cancel_work_sync(&priv
->beacon_update
);
7398 static struct attribute
*iwl3945_sysfs_entries
[] = {
7399 &dev_attr_antenna
.attr
,
7400 &dev_attr_channels
.attr
,
7401 &dev_attr_dump_errors
.attr
,
7402 &dev_attr_dump_events
.attr
,
7403 &dev_attr_flags
.attr
,
7404 &dev_attr_filter_flags
.attr
,
7405 #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT
7406 &dev_attr_measurement
.attr
,
7408 &dev_attr_power_level
.attr
,
7409 &dev_attr_retry_rate
.attr
,
7410 &dev_attr_statistics
.attr
,
7411 &dev_attr_status
.attr
,
7412 &dev_attr_temperature
.attr
,
7413 &dev_attr_tx_power
.attr
,
7414 #ifdef CONFIG_IWL3945_DEBUG
7415 &dev_attr_debug_level
.attr
,
7420 static struct attribute_group iwl3945_attribute_group
= {
7421 .name
= NULL
, /* put in device directory */
7422 .attrs
= iwl3945_sysfs_entries
,
7425 static struct ieee80211_ops iwl3945_hw_ops
= {
7426 .tx
= iwl3945_mac_tx
,
7427 .start
= iwl3945_mac_start
,
7428 .stop
= iwl3945_mac_stop
,
7429 .add_interface
= iwl3945_mac_add_interface
,
7430 .remove_interface
= iwl3945_mac_remove_interface
,
7431 .config
= iwl3945_mac_config
,
7432 .config_interface
= iwl3945_mac_config_interface
,
7433 .configure_filter
= iwl3945_configure_filter
,
7434 .set_key
= iwl3945_mac_set_key
,
7435 .get_tx_stats
= iwl3945_mac_get_tx_stats
,
7436 .conf_tx
= iwl3945_mac_conf_tx
,
7437 .reset_tsf
= iwl3945_mac_reset_tsf
,
7438 .bss_info_changed
= iwl3945_bss_info_changed
,
7439 .hw_scan
= iwl3945_mac_hw_scan
7442 int iwl3945_init_drv(struct iwl_priv
*priv
)
7446 priv
->retry_rate
= 1;
7447 priv
->ibss_beacon
= NULL
;
7449 spin_lock_init(&priv
->lock
);
7450 spin_lock_init(&priv
->power_data
.lock
);
7451 spin_lock_init(&priv
->sta_lock
);
7452 spin_lock_init(&priv
->hcmd_lock
);
7454 INIT_LIST_HEAD(&priv
->free_frames
);
7456 mutex_init(&priv
->mutex
);
7458 /* Clear the driver's (not device's) station table */
7459 iwl3945_clear_stations_table(priv
);
7461 priv
->data_retry_limit
= -1;
7462 priv
->ieee_channels
= NULL
;
7463 priv
->ieee_rates
= NULL
;
7464 priv
->band
= IEEE80211_BAND_2GHZ
;
7466 priv
->iw_mode
= NL80211_IFTYPE_STATION
;
7468 iwl_reset_qos(priv
);
7470 priv
->qos_data
.qos_active
= 0;
7471 priv
->qos_data
.qos_cap
.val
= 0;
7473 priv
->rates_mask
= IWL_RATES_MASK
;
7474 /* If power management is turned on, default to AC mode */
7475 priv
->power_mode
= IWL_POWER_AC
;
7476 priv
->user_txpower_limit
= IWL_DEFAULT_TX_POWER
;
7478 ret
= iwl3945_init_channel_map(priv
);
7480 IWL_ERR(priv
, "initializing regulatory failed: %d\n", ret
);
7484 ret
= iwl3945_init_geos(priv
);
7486 IWL_ERR(priv
, "initializing geos failed: %d\n", ret
);
7487 goto err_free_channel_map
;
7492 err_free_channel_map
:
7493 iwl3945_free_channel_map(priv
);
7498 static int iwl3945_pci_probe(struct pci_dev
*pdev
, const struct pci_device_id
*ent
)
7501 struct iwl_priv
*priv
;
7502 struct ieee80211_hw
*hw
;
7503 struct iwl_cfg
*cfg
= (struct iwl_cfg
*)(ent
->driver_data
);
7504 unsigned long flags
;
7506 /***********************
7507 * 1. Allocating HW data
7508 * ********************/
7510 /* mac80211 allocates memory for this device instance, including
7511 * space for this driver's private structure */
7512 hw
= iwl_alloc_all(cfg
, &iwl3945_hw_ops
);
7514 printk(KERN_ERR DRV_NAME
"Can not allocate network device\n");
7519 SET_IEEE80211_DEV(hw
, &pdev
->dev
);
7521 if ((iwl3945_mod_params
.num_of_queues
> IWL39_MAX_NUM_QUEUES
) ||
7522 (iwl3945_mod_params
.num_of_queues
< IWL_MIN_NUM_QUEUES
)) {
7524 "invalid queues_num, should be between %d and %d\n",
7525 IWL_MIN_NUM_QUEUES
, IWL39_MAX_NUM_QUEUES
);
7531 * Disabling hardware scan means that mac80211 will perform scans
7532 * "the hard way", rather than using device's scan.
7534 if (iwl3945_mod_params
.disable_hw_scan
) {
7535 IWL_DEBUG_INFO("Disabling hw_scan\n");
7536 iwl3945_hw_ops
.hw_scan
= NULL
;
7540 IWL_DEBUG_INFO("*** LOAD DRIVER ***\n");
7542 priv
->pci_dev
= pdev
;
7544 #ifdef CONFIG_IWL3945_DEBUG
7545 priv
->debug_level
= iwl3945_mod_params
.debug
;
7546 atomic_set(&priv
->restrict_refcnt
, 0);
7548 hw
->rate_control_algorithm
= "iwl-3945-rs";
7549 hw
->sta_data_size
= sizeof(struct iwl3945_sta_priv
);
7551 /* Select antenna (may be helpful if only one antenna is connected) */
7552 priv
->antenna
= (enum iwl3945_antenna
)iwl3945_mod_params
.antenna
;
7554 /* Tell mac80211 our characteristics */
7555 hw
->flags
= IEEE80211_HW_SIGNAL_DBM
|
7556 IEEE80211_HW_NOISE_DBM
;
7558 hw
->wiphy
->interface_modes
=
7559 BIT(NL80211_IFTYPE_STATION
) |
7560 BIT(NL80211_IFTYPE_ADHOC
);
7562 hw
->wiphy
->fw_handles_regulatory
= true;
7564 /* 4 EDCA QOS priorities */
7567 /***************************
7568 * 2. Initializing PCI bus
7569 * *************************/
7570 if (pci_enable_device(pdev
)) {
7572 goto out_ieee80211_free_hw
;
7575 pci_set_master(pdev
);
7577 err
= pci_set_dma_mask(pdev
, DMA_32BIT_MASK
);
7579 err
= pci_set_consistent_dma_mask(pdev
, DMA_32BIT_MASK
);
7581 IWL_WARN(priv
, "No suitable DMA available.\n");
7582 goto out_pci_disable_device
;
7585 pci_set_drvdata(pdev
, priv
);
7586 err
= pci_request_regions(pdev
, DRV_NAME
);
7588 goto out_pci_disable_device
;
7590 /***********************
7591 * 3. Read REV Register
7592 * ********************/
7593 priv
->hw_base
= pci_iomap(pdev
, 0, 0);
7594 if (!priv
->hw_base
) {
7596 goto out_pci_release_regions
;
7599 IWL_DEBUG_INFO("pci_resource_len = 0x%08llx\n",
7600 (unsigned long long) pci_resource_len(pdev
, 0));
7601 IWL_DEBUG_INFO("pci_resource_base = %p\n", priv
->hw_base
);
7603 /* We disable the RETRY_TIMEOUT register (0x41) to keep
7604 * PCI Tx retries from interfering with C3 CPU state */
7605 pci_write_config_byte(pdev
, 0x41, 0x00);
7608 err
= priv
->cfg
->ops
->lib
->apm_ops
.init(priv
);
7610 IWL_DEBUG_INFO("Failed to init APMG\n");
7614 /***********************
7616 * ********************/
7618 /* Read the EEPROM */
7619 err
= iwl3945_eeprom_init(priv
);
7621 IWL_ERR(priv
, "Unable to init EEPROM\n");
7622 goto out_remove_sysfs
;
7624 /* MAC Address location in EEPROM same for 3945/4965 */
7625 get_eeprom_mac(priv
, priv
->mac_addr
);
7626 IWL_DEBUG_INFO("MAC address: %pM\n", priv
->mac_addr
);
7627 SET_IEEE80211_PERM_ADDR(priv
->hw
, priv
->mac_addr
);
7629 /***********************
7630 * 5. Setup HW Constants
7631 * ********************/
7632 /* Device-specific setup */
7633 if (iwl3945_hw_set_hw_params(priv
)) {
7634 IWL_ERR(priv
, "failed to set hw settings\n");
7638 /***********************
7640 * ********************/
7642 err
= iwl3945_init_drv(priv
);
7644 IWL_ERR(priv
, "initializing driver failed\n");
7648 IWL_INFO(priv
, "Detected Intel Wireless WiFi Link %s\n",
7651 /***********************************
7652 * 7. Initialize Module Parameters
7653 * **********************************/
7655 /* Initialize module parameter values here */
7656 /* Disable radio (SW RF KILL) via parameter when loading driver */
7657 if (iwl3945_mod_params
.disable
) {
7658 set_bit(STATUS_RF_KILL_SW
, &priv
->status
);
7659 IWL_DEBUG_INFO("Radio disabled.\n");
7663 /***********************
7665 * ********************/
7667 spin_lock_irqsave(&priv
->lock
, flags
);
7668 iwl3945_disable_interrupts(priv
);
7669 spin_unlock_irqrestore(&priv
->lock
, flags
);
7671 err
= sysfs_create_group(&pdev
->dev
.kobj
, &iwl3945_attribute_group
);
7673 IWL_ERR(priv
, "failed to create sysfs device attributes\n");
7674 goto out_release_irq
;
7677 iwl3945_set_rxon_channel(priv
, IEEE80211_BAND_2GHZ
, 6);
7678 iwl3945_setup_deferred_work(priv
);
7679 iwl3945_setup_rx_handlers(priv
);
7681 /***********************
7683 * ********************/
7684 pci_save_state(pdev
);
7685 pci_disable_device(pdev
);
7687 /*********************************
7688 * 10. Setup and Register mac80211
7689 * *******************************/
7691 err
= ieee80211_register_hw(priv
->hw
);
7693 IWL_ERR(priv
, "Failed to register network device: %d\n", err
);
7694 goto out_remove_sysfs
;
7697 priv
->hw
->conf
.beacon_int
= 100;
7698 priv
->mac80211_registered
= 1;
7700 err
= iwl3945_rfkill_init(priv
);
7702 IWL_ERR(priv
, "Unable to initialize RFKILL system. "
7703 "Ignoring error: %d\n", err
);
7708 sysfs_remove_group(&pdev
->dev
.kobj
, &iwl3945_attribute_group
);
7710 iwl3945_free_geos(priv
);
7713 destroy_workqueue(priv
->workqueue
);
7714 priv
->workqueue
= NULL
;
7715 iwl3945_unset_hw_params(priv
);
7718 pci_iounmap(pdev
, priv
->hw_base
);
7719 out_pci_release_regions
:
7720 pci_release_regions(pdev
);
7721 out_pci_disable_device
:
7722 pci_disable_device(pdev
);
7723 pci_set_drvdata(pdev
, NULL
);
7724 out_ieee80211_free_hw
:
7725 ieee80211_free_hw(priv
->hw
);
7730 static void __devexit
iwl3945_pci_remove(struct pci_dev
*pdev
)
7732 struct iwl_priv
*priv
= pci_get_drvdata(pdev
);
7733 unsigned long flags
;
7738 IWL_DEBUG_INFO("*** UNLOAD DRIVER ***\n");
7740 set_bit(STATUS_EXIT_PENDING
, &priv
->status
);
7742 if (priv
->mac80211_registered
) {
7743 ieee80211_unregister_hw(priv
->hw
);
7744 priv
->mac80211_registered
= 0;
7749 /* make sure we flush any pending irq or
7750 * tasklet for the driver
7752 spin_lock_irqsave(&priv
->lock
, flags
);
7753 iwl3945_disable_interrupts(priv
);
7754 spin_unlock_irqrestore(&priv
->lock
, flags
);
7756 iwl_synchronize_irq(priv
);
7758 sysfs_remove_group(&pdev
->dev
.kobj
, &iwl3945_attribute_group
);
7760 iwl3945_rfkill_unregister(priv
);
7761 iwl3945_dealloc_ucode_pci(priv
);
7764 iwl3945_rx_queue_free(priv
, &priv
->rxq
);
7765 iwl3945_hw_txq_ctx_free(priv
);
7767 iwl3945_unset_hw_params(priv
);
7768 iwl3945_clear_stations_table(priv
);
7770 /*netif_stop_queue(dev); */
7771 flush_workqueue(priv
->workqueue
);
7773 /* ieee80211_unregister_hw calls iwl3945_mac_stop, which flushes
7774 * priv->workqueue... so we can't take down the workqueue
7776 destroy_workqueue(priv
->workqueue
);
7777 priv
->workqueue
= NULL
;
7779 pci_iounmap(pdev
, priv
->hw_base
);
7780 pci_release_regions(pdev
);
7781 pci_disable_device(pdev
);
7782 pci_set_drvdata(pdev
, NULL
);
7784 iwl3945_free_channel_map(priv
);
7785 iwl3945_free_geos(priv
);
7786 kfree(priv
->scan39
);
7787 if (priv
->ibss_beacon
)
7788 dev_kfree_skb(priv
->ibss_beacon
);
7790 ieee80211_free_hw(priv
->hw
);
7795 static int iwl3945_pci_suspend(struct pci_dev
*pdev
, pm_message_t state
)
7797 struct iwl_priv
*priv
= pci_get_drvdata(pdev
);
7799 if (priv
->is_open
) {
7800 set_bit(STATUS_IN_SUSPEND
, &priv
->status
);
7801 iwl3945_mac_stop(priv
->hw
);
7805 pci_set_power_state(pdev
, PCI_D3hot
);
7810 static int iwl3945_pci_resume(struct pci_dev
*pdev
)
7812 struct iwl_priv
*priv
= pci_get_drvdata(pdev
);
7814 pci_set_power_state(pdev
, PCI_D0
);
7817 iwl3945_mac_start(priv
->hw
);
7819 clear_bit(STATUS_IN_SUSPEND
, &priv
->status
);
7823 #endif /* CONFIG_PM */
7825 /*************** RFKILL FUNCTIONS **********/
7826 #ifdef CONFIG_IWL3945_RFKILL
7827 /* software rf-kill from user */
7828 static int iwl3945_rfkill_soft_rf_kill(void *data
, enum rfkill_state state
)
7830 struct iwl_priv
*priv
= data
;
7836 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
7839 IWL_DEBUG_RF_KILL("we received soft RFKILL set to state %d\n", state
);
7840 mutex_lock(&priv
->mutex
);
7843 case RFKILL_STATE_UNBLOCKED
:
7844 if (iwl_is_rfkill_hw(priv
)) {
7848 iwl3945_radio_kill_sw(priv
, 0);
7850 case RFKILL_STATE_SOFT_BLOCKED
:
7851 iwl3945_radio_kill_sw(priv
, 1);
7854 IWL_WARN(priv
, "received unexpected RFKILL state %d\n", state
);
7858 mutex_unlock(&priv
->mutex
);
7863 int iwl3945_rfkill_init(struct iwl_priv
*priv
)
7865 struct device
*device
= wiphy_dev(priv
->hw
->wiphy
);
7868 BUG_ON(device
== NULL
);
7870 IWL_DEBUG_RF_KILL("Initializing RFKILL.\n");
7871 priv
->rfkill
= rfkill_allocate(device
, RFKILL_TYPE_WLAN
);
7872 if (!priv
->rfkill
) {
7873 IWL_ERR(priv
, "Unable to allocate rfkill device.\n");
7878 priv
->rfkill
->name
= priv
->cfg
->name
;
7879 priv
->rfkill
->data
= priv
;
7880 priv
->rfkill
->state
= RFKILL_STATE_UNBLOCKED
;
7881 priv
->rfkill
->toggle_radio
= iwl3945_rfkill_soft_rf_kill
;
7882 priv
->rfkill
->user_claim_unsupported
= 1;
7884 priv
->rfkill
->dev
.class->suspend
= NULL
;
7885 priv
->rfkill
->dev
.class->resume
= NULL
;
7887 ret
= rfkill_register(priv
->rfkill
);
7889 IWL_ERR(priv
, "Unable to register rfkill: %d\n", ret
);
7893 IWL_DEBUG_RF_KILL("RFKILL initialization complete.\n");
7897 if (priv
->rfkill
!= NULL
)
7898 rfkill_free(priv
->rfkill
);
7899 priv
->rfkill
= NULL
;
7902 IWL_DEBUG_RF_KILL("RFKILL initialization complete.\n");
7906 void iwl3945_rfkill_unregister(struct iwl_priv
*priv
)
7909 rfkill_unregister(priv
->rfkill
);
7911 priv
->rfkill
= NULL
;
7914 /* set rf-kill to the right state. */
7915 void iwl3945_rfkill_set_hw_state(struct iwl_priv
*priv
)
7921 if (iwl_is_rfkill_hw(priv
)) {
7922 rfkill_force_state(priv
->rfkill
, RFKILL_STATE_HARD_BLOCKED
);
7926 if (!iwl_is_rfkill_sw(priv
))
7927 rfkill_force_state(priv
->rfkill
, RFKILL_STATE_UNBLOCKED
);
7929 rfkill_force_state(priv
->rfkill
, RFKILL_STATE_SOFT_BLOCKED
);
7933 /*****************************************************************************
7935 * driver and module entry point
7937 *****************************************************************************/
7939 static struct pci_driver iwl3945_driver
= {
7941 .id_table
= iwl3945_hw_card_ids
,
7942 .probe
= iwl3945_pci_probe
,
7943 .remove
= __devexit_p(iwl3945_pci_remove
),
7945 .suspend
= iwl3945_pci_suspend
,
7946 .resume
= iwl3945_pci_resume
,
7950 static int __init
iwl3945_init(void)
7954 printk(KERN_INFO DRV_NAME
": " DRV_DESCRIPTION
", " DRV_VERSION
"\n");
7955 printk(KERN_INFO DRV_NAME
": " DRV_COPYRIGHT
"\n");
7957 ret
= iwl3945_rate_control_register();
7959 printk(KERN_ERR DRV_NAME
7960 "Unable to register rate control algorithm: %d\n", ret
);
7964 ret
= pci_register_driver(&iwl3945_driver
);
7966 printk(KERN_ERR DRV_NAME
"Unable to initialize PCI module\n");
7967 goto error_register
;
7973 iwl3945_rate_control_unregister();
7977 static void __exit
iwl3945_exit(void)
7979 pci_unregister_driver(&iwl3945_driver
);
7980 iwl3945_rate_control_unregister();
7983 MODULE_FIRMWARE(IWL3945_MODULE_FIRMWARE(IWL3945_UCODE_API_MAX
));
7985 module_param_named(antenna
, iwl3945_mod_params
.antenna
, int, 0444);
7986 MODULE_PARM_DESC(antenna
, "select antenna (1=Main, 2=Aux, default 0 [both])");
7987 module_param_named(disable
, iwl3945_mod_params
.disable
, int, 0444);
7988 MODULE_PARM_DESC(disable
, "manually disable the radio (default 0 [radio on])");
7989 module_param_named(hwcrypto
, iwl3945_mod_params
.sw_crypto
, int, 0444);
7990 MODULE_PARM_DESC(hwcrypto
,
7991 "using hardware crypto engine (default 0 [software])\n");
7992 module_param_named(debug
, iwl3945_mod_params
.debug
, uint
, 0444);
7993 MODULE_PARM_DESC(debug
, "debug output mask");
7994 module_param_named(disable_hw_scan
, iwl3945_mod_params
.disable_hw_scan
, int, 0444);
7995 MODULE_PARM_DESC(disable_hw_scan
, "disable hardware scanning (default 0)");
7997 module_param_named(queues_num
, iwl3945_mod_params
.num_of_queues
, int, 0444);
7998 MODULE_PARM_DESC(queues_num
, "number of hw queues.");
8000 module_exit(iwl3945_exit
);
8001 module_init(iwl3945_init
);