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iwlwifi: get_hw_cmd_size
[deliverable/linux.git] / drivers / net / wireless / iwlwifi / iwl4965-base.c
CommitLineData
b481de9c
ZY		 1/******************************************************************************
2 *
eb7ae89c 3 * Copyright(c) 2003 - 2008 Intel Corporation. All rights reserved.
b481de9c
ZY		 4 *
5 * Portions of this file are derived from the ipw3945 project, as well
6 * as portions of the ieee80211 subsystem header files.
7 *
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.
11 *
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
15 * more details.
16 *
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
20 *
21 * The full GNU General Public License is included in this distribution in the
22 * file called LICENSE.
23 *
24 * Contact Information:
25 * James P. Ketrenos <ipw2100-admin@linux.intel.com>
26 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
27 *
28 *****************************************************************************/
29
b481de9c
ZY		 30#include <linux/kernel.h>
31#include <linux/module.h>
32#include <linux/version.h>
33#include <linux/init.h>
34#include <linux/pci.h>
35#include <linux/dma-mapping.h>
36#include <linux/delay.h>
37#include <linux/skbuff.h>
38#include <linux/netdevice.h>
39#include <linux/wireless.h>
40#include <linux/firmware.h>
b481de9c
ZY		 41#include <linux/etherdevice.h>
42#include <linux/if_arp.h>
43
b481de9c
ZY		 44#include <net/mac80211.h>
45
46#include <asm/div64.h>
47
6bc913bd 48#include "iwl-eeprom.h"
3e0d4cb1 49#include "iwl-dev.h"
fee1247a 50#include "iwl-core.h"
3395f6e9 51#include "iwl-io.h"
b481de9c 52#include "iwl-helpers.h"
6974e363 53#include "iwl-sta.h"
f0832f13 54#include "iwl-calib.h"
b481de9c 55
c79dd5b5 56static int iwl4965_tx_queue_update_write_ptr(struct iwl_priv *priv,
16466903 57 struct iwl_tx_queue *txq);
416e1438 58
b481de9c
ZY		 59/******************************************************************************
60 *
61 * module boiler plate
62 *
63 ******************************************************************************/
64
b481de9c
ZY		 65/*
66 * module name, copyright, version, etc.
67 * NOTE: DRV_NAME is defined in iwlwifi.h for use by iwl-debug.h and printk
68 */
69
70#define DRV_DESCRIPTION "Intel(R) Wireless WiFi Link 4965AGN driver for Linux"
71
0a6857e7 72#ifdef CONFIG_IWLWIFI_DEBUG
b481de9c
ZY		 73#define VD "d"
74#else
75#define VD
76#endif
77
c8b0e6e1 78#ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
b481de9c
ZY		 79#define VS "s"
80#else
81#define VS
82#endif
83
df48c323 84#define DRV_VERSION IWLWIFI_VERSION VD VS
b481de9c 85
b481de9c
ZY		 86
87MODULE_DESCRIPTION(DRV_DESCRIPTION);
88MODULE_VERSION(DRV_VERSION);
89MODULE_AUTHOR(DRV_COPYRIGHT);
90MODULE_LICENSE("GPL");
91
92__le16 *ieee80211_get_qos_ctrl(struct ieee80211_hdr *hdr)
93{
94 u16 fc = le16_to_cpu(hdr->frame_control);
95 int hdr_len = ieee80211_get_hdrlen(fc);
96
97 if ((fc & 0x00cc) == (IEEE80211_STYPE_QOS_DATA | IEEE80211_FTYPE_DATA))
98 return (__le16 *) ((u8 *) hdr + hdr_len - QOS_CONTROL_LEN);
99 return NULL;
100}
101
d1141dfb 102static const struct ieee80211_supported_band *iwl_get_hw_mode(
c79dd5b5 103 struct iwl_priv *priv, enum ieee80211_band band)
b481de9c 104{
8318d78a 105 return priv->hw->wiphy->bands[band];
b481de9c
ZY		 106}
107
bb8c093b 108static int iwl4965_is_empty_essid(const char *essid, int essid_len)
b481de9c
ZY		 109{
110 /* Single white space is for Linksys APs */
111 if (essid_len == 1 && essid[0] == ' ')
112 return 1;
113
114 /* Otherwise, if the entire essid is 0, we assume it is hidden */
115 while (essid_len) {
116 essid_len--;
117 if (essid[essid_len] != '\0')
118 return 0;
119 }
120
121 return 1;
122}
123
bb8c093b 124static const char *iwl4965_escape_essid(const char *essid, u8 essid_len)
b481de9c
ZY		 125{
126 static char escaped[IW_ESSID_MAX_SIZE * 2 + 1];
127 const char *s = essid;
128 char *d = escaped;
129
bb8c093b 130 if (iwl4965_is_empty_essid(essid, essid_len)) {
b481de9c
ZY		 131 memcpy(escaped, "<hidden>", sizeof("<hidden>"));
132 return escaped;
133 }
134
135 essid_len = min(essid_len, (u8) IW_ESSID_MAX_SIZE);
136 while (essid_len--) {
137 if (*s == '\0') {
138 *d++ = '\\';
139 *d++ = '0';
140 s++;
141 } else
142 *d++ = *s++;
143 }
144 *d = '\0';
145 return escaped;
146}
147
bf403db8 148
b481de9c
ZY		 149/*************** DMA-QUEUE-GENERAL-FUNCTIONS *****
150 * DMA services
151 *
152 * Theory of operation
153 *
6440adb5
CB		 154 * A Tx or Rx queue resides in host DRAM, and is comprised of a circular buffer
155 * of buffer descriptors, each of which points to one or more data buffers for
156 * the device to read from or fill. Driver and device exchange status of each
157 * queue via "read" and "write" pointers. Driver keeps minimum of 2 empty
158 * entries in each circular buffer, to protect against confusing empty and full
159 * queue states.
160 *
161 * The device reads or writes the data in the queues via the device's several
162 * DMA/FIFO channels. Each queue is mapped to a single DMA channel.
b481de9c
ZY		 163 *
164 * For Tx queue, there are low mark and high mark limits. If, after queuing
165 * the packet for Tx, free space become < low mark, Tx queue stopped. When
166 * reclaiming packets (on 'tx done IRQ), if free space become > high mark,
167 * Tx queue resumed.
168 *
6440adb5
CB		 169 * The 4965 operates with up to 17 queues: One receive queue, one transmit
170 * queue (#4) for sending commands to the device firmware, and 15 other
171 * Tx queues that may be mapped to prioritized Tx DMA/FIFO channels.
e3851447
BC		 172 *
173 * See more detailed info in iwl-4965-hw.h.
b481de9c
ZY		 174 ***************************************************/
175
443cfd45 176int iwl_queue_space(const struct iwl_queue *q)
b481de9c 177{
fc4b6853 178 int s = q->read_ptr - q->write_ptr;
b481de9c 179
fc4b6853 180 if (q->read_ptr > q->write_ptr)
b481de9c
ZY		 181 s -= q->n_bd;
182
183 if (s <= 0)
184 s += q->n_window;
185 /* keep some reserve to not confuse empty and full situations */
186 s -= 2;
187 if (s < 0)
188 s = 0;
189 return s;
190}
191
b481de9c 192
443cfd45 193static inline int iwl_queue_used(const struct iwl_queue *q, int i)
b481de9c 194{
fc4b6853
TW		 195 return q->write_ptr > q->read_ptr ?
196 (i >= q->read_ptr && i < q->write_ptr) :
197 !(i < q->read_ptr && i >= q->write_ptr);
b481de9c
ZY		 198}
199
443cfd45 200static inline u8 get_cmd_index(struct iwl_queue *q, u32 index, int is_huge)
b481de9c 201{
6440adb5 202 /* This is for scan command, the big buffer at end of command array */
b481de9c 203 if (is_huge)
6440adb5 204 return q->n_window; /* must be power of 2 */
b481de9c 205
6440adb5 206 /* Otherwise, use normal size buffers */
b481de9c
ZY		 207 return index & (q->n_window - 1);
208}
209
bb8c093b 210const u8 iwl4965_broadcast_addr[ETH_ALEN] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
b481de9c
ZY		 211
212/*************** STATION TABLE MANAGEMENT ****
9fbab516 213 * mac80211 should be examined to determine if sta_info is duplicating
b481de9c
ZY		 214 * the functionality provided here
215 */
216
217/**************************************************************/
218
01ebd063 219#if 0 /* temporary disable till we add real remove station */
6440adb5
CB		 220/**
221 * iwl4965_remove_station - Remove driver's knowledge of station.
222 *
223 * NOTE: This does not remove station from device's station table.
224 */
c79dd5b5 225static u8 iwl4965_remove_station(struct iwl_priv *priv, const u8 *addr, int is_ap)
b481de9c
ZY		 226{
227 int index = IWL_INVALID_STATION;
228 int i;
229 unsigned long flags;
230
231 spin_lock_irqsave(&priv->sta_lock, flags);
232
233 if (is_ap)
234 index = IWL_AP_ID;
235 else if (is_broadcast_ether_addr(addr))
5425e490 236 index = priv->hw_params.bcast_sta_id;
b481de9c 237 else
5425e490 238 for (i = IWL_STA_ID; i < priv->hw_params.max_stations; i++)
b481de9c
ZY		 239 if (priv->stations[i].used &&
240 !compare_ether_addr(priv->stations[i].sta.sta.addr,
241 addr)) {
242 index = i;
243 break;
244 }
245
246 if (unlikely(index == IWL_INVALID_STATION))
247 goto out;
248
249 if (priv->stations[index].used) {
250 priv->stations[index].used = 0;
251 priv->num_stations--;
252 }
253
254 BUG_ON(priv->num_stations < 0);
255
256out:
257 spin_unlock_irqrestore(&priv->sta_lock, flags);
258 return 0;
259}
556f8db7 260#endif
b481de9c 261
6440adb5
CB		 262/**
263 * iwl4965_add_station_flags - Add station to tables in driver and device
264 */
c79dd5b5 265u8 iwl4965_add_station_flags(struct iwl_priv *priv, const u8 *addr,
67d62035 266 int is_ap, u8 flags, void *ht_data)
b481de9c
ZY		 267{
268 int i;
269 int index = IWL_INVALID_STATION;
6def9761 270 struct iwl_station_entry *station;
b481de9c 271 unsigned long flags_spin;
0795af57 272 DECLARE_MAC_BUF(mac);
b481de9c
ZY		 273
274 spin_lock_irqsave(&priv->sta_lock, flags_spin);
275 if (is_ap)
276 index = IWL_AP_ID;
277 else if (is_broadcast_ether_addr(addr))
5425e490 278 index = priv->hw_params.bcast_sta_id;
b481de9c 279 else
5425e490 280 for (i = IWL_STA_ID; i < priv->hw_params.max_stations; i++) {
b481de9c
ZY		 281 if (!compare_ether_addr(priv->stations[i].sta.sta.addr,
282 addr)) {
283 index = i;
284 break;
285 }
286
287 if (!priv->stations[i].used &&
288 index == IWL_INVALID_STATION)
289 index = i;
290 }
291
292
9fbab516
BC		 293 /* These two conditions have the same outcome, but keep them separate
294 since they have different meanings */
b481de9c
ZY		 295 if (unlikely(index == IWL_INVALID_STATION)) {
296 spin_unlock_irqrestore(&priv->sta_lock, flags_spin);
297 return index;
298 }
299
300 if (priv->stations[index].used &&
301 !compare_ether_addr(priv->stations[index].sta.sta.addr, addr)) {
302 spin_unlock_irqrestore(&priv->sta_lock, flags_spin);
303 return index;
304 }
305
306
0795af57 307 IWL_DEBUG_ASSOC("Add STA ID %d: %s\n", index, print_mac(mac, addr));
b481de9c
ZY		 308 station = &priv->stations[index];
309 station->used = 1;
310 priv->num_stations++;
311
6440adb5 312 /* Set up the REPLY_ADD_STA command to send to device */
133636de 313 memset(&station->sta, 0, sizeof(struct iwl_addsta_cmd));
b481de9c
ZY		 314 memcpy(station->sta.sta.addr, addr, ETH_ALEN);
315 station->sta.mode = 0;
316 station->sta.sta.sta_id = index;
317 station->sta.station_flags = 0;
318
c8b0e6e1 319#ifdef CONFIG_IWL4965_HT
b481de9c 320 /* BCAST station and IBSS stations do not work in HT mode */
5425e490 321 if (index != priv->hw_params.bcast_sta_id &&
b481de9c 322 priv->iw_mode != IEEE80211_IF_TYPE_IBSS)
67d62035
RR		 323 iwl4965_set_ht_add_station(priv, index,
324 (struct ieee80211_ht_info *) ht_data);
c8b0e6e1 325#endif /*CONFIG_IWL4965_HT*/
b481de9c
ZY		 326
327 spin_unlock_irqrestore(&priv->sta_lock, flags_spin);
6440adb5
CB		 328
329 /* Add station to device's station table */
133636de 330 iwl_send_add_sta(priv, &station->sta, flags);
b481de9c
ZY		 331 return index;
332
333}
334
b481de9c 335
b481de9c
ZY		 336
337/*************** HOST COMMAND QUEUE FUNCTIONS *****/
338
b481de9c 339/**
bb8c093b 340 * iwl4965_enqueue_hcmd - enqueue a uCode command
b481de9c
ZY		 341 * @priv: device private data point
342 * @cmd: a point to the ucode command structure
343 *
344 * The function returns < 0 values to indicate the operation is
345 * failed. On success, it turns the index (> 0) of command in the
346 * command queue.
347 */
857485c0 348int iwl4965_enqueue_hcmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd)
b481de9c 349{
16466903 350 struct iwl_tx_queue *txq = &priv->txq[IWL_CMD_QUEUE_NUM];
443cfd45 351 struct iwl_queue *q = &txq->q;
1053d35f 352 struct iwl_tfd_frame *tfd;
b481de9c 353 u32 *control_flags;
857485c0 354 struct iwl_cmd *out_cmd;
b481de9c 355 u32 idx;
c1adf9fb 356 u16 fix_size;
b481de9c
ZY		 357 dma_addr_t phys_addr;
358 int ret;
359 unsigned long flags;
360
c1adf9fb
GG		 361 cmd->len = priv->cfg->ops->utils->get_hcmd_size(cmd->id, cmd->len);
362 fix_size = (u16)(cmd->len + sizeof(out_cmd->hdr));
363
b481de9c
ZY		 364 /* If any of the command structures end up being larger than
365 * the TFD_MAX_PAYLOAD_SIZE, and it sent as a 'small' command then
366 * we will need to increase the size of the TFD entries */
367 BUG_ON((fix_size > TFD_MAX_PAYLOAD_SIZE) &&
368 !(cmd->meta.flags & CMD_SIZE_HUGE));
369
fee1247a 370 if (iwl_is_rfkill(priv)) {
c342a1b9
GG		 371 IWL_DEBUG_INFO("Not sending command - RF KILL");
372 return -EIO;
373 }
374
443cfd45 375 if (iwl_queue_space(q) < ((cmd->meta.flags & CMD_ASYNC) ? 2 : 1)) {
b481de9c
ZY		 376 IWL_ERROR("No space for Tx\n");
377 return -ENOSPC;
378 }
379
380 spin_lock_irqsave(&priv->hcmd_lock, flags);
381
fc4b6853 382 tfd = &txq->bd[q->write_ptr];
b481de9c
ZY		 383 memset(tfd, 0, sizeof(*tfd));
384
385 control_flags = (u32 *) tfd;
386
fc4b6853 387 idx = get_cmd_index(q, q->write_ptr, cmd->meta.flags & CMD_SIZE_HUGE);
b481de9c
ZY		 388 out_cmd = &txq->cmd[idx];
389
390 out_cmd->hdr.cmd = cmd->id;
391 memcpy(&out_cmd->meta, &cmd->meta, sizeof(cmd->meta));
392 memcpy(&out_cmd->cmd.payload, cmd->data, cmd->len);
393
394 /* At this point, the out_cmd now has all of the incoming cmd
395 * information */
396
397 out_cmd->hdr.flags = 0;
398 out_cmd->hdr.sequence = cpu_to_le16(QUEUE_TO_SEQ(IWL_CMD_QUEUE_NUM) |
fc4b6853 399 INDEX_TO_SEQ(q->write_ptr));
b481de9c
ZY		 400 if (out_cmd->meta.flags & CMD_SIZE_HUGE)
401 out_cmd->hdr.sequence |= cpu_to_le16(SEQ_HUGE_FRAME);
402
403 phys_addr = txq->dma_addr_cmd + sizeof(txq->cmd[0]) * idx +
857485c0 404 offsetof(struct iwl_cmd, hdr);
bb8c093b 405 iwl4965_hw_txq_attach_buf_to_tfd(priv, tfd, phys_addr, fix_size);
b481de9c
ZY		 406
407 IWL_DEBUG_HC("Sending command %s (#%x), seq: 0x%04X, "
408 "%d bytes at %d[%d]:%d\n",
409 get_cmd_string(out_cmd->hdr.cmd),
410 out_cmd->hdr.cmd, le16_to_cpu(out_cmd->hdr.sequence),
fc4b6853 411 fix_size, q->write_ptr, idx, IWL_CMD_QUEUE_NUM);
b481de9c
ZY		 412
413 txq->need_update = 1;
6440adb5
CB		 414
415 /* Set up entry in queue's byte count circular buffer */
e2a722eb 416 priv->cfg->ops->lib->txq_update_byte_cnt_tbl(priv, txq, 0);
6440adb5
CB		 417
418 /* Increment and update queue's write index */
c54b679d 419 q->write_ptr = iwl_queue_inc_wrap(q->write_ptr, q->n_bd);
e2a722eb 420 ret = iwl4965_tx_queue_update_write_ptr(priv, txq);
b481de9c
ZY		 421
422 spin_unlock_irqrestore(&priv->hcmd_lock, flags);
423 return ret ? ret : idx;
424}
425
deb09c43
EG		 426static void iwl4965_set_rxon_hwcrypto(struct iwl_priv *priv, int hw_decrypt)
427{
c1adf9fb 428 struct iwl_rxon_cmd *rxon = &priv->staging_rxon;
deb09c43
EG		 429
430 if (hw_decrypt)
431 rxon->filter_flags &= ~RXON_FILTER_DIS_DECRYPT_MSK;
432 else
433 rxon->filter_flags |= RXON_FILTER_DIS_DECRYPT_MSK;
434
435}
436
b481de9c 437/**
bb8c093b 438 * iwl4965_rxon_add_station - add station into station table.
b481de9c
ZY		 439 *
440 * there is only one AP station with id= IWL_AP_ID
9fbab516
BC		 441 * NOTE: mutex must be held before calling this fnction
442 */
c79dd5b5 443static int iwl4965_rxon_add_station(struct iwl_priv *priv,
b481de9c
ZY		 444 const u8 *addr, int is_ap)
445{
556f8db7 446 u8 sta_id;
b481de9c 447
6440adb5 448 /* Add station to device's station table */
67d62035
RR		 449#ifdef CONFIG_IWL4965_HT
450 struct ieee80211_conf *conf = &priv->hw->conf;
451 struct ieee80211_ht_info *cur_ht_config = &conf->ht_conf;
452
453 if ((is_ap) &&
454 (conf->flags & IEEE80211_CONF_SUPPORT_HT_MODE) &&
455 (priv->iw_mode == IEEE80211_IF_TYPE_STA))
456 sta_id = iwl4965_add_station_flags(priv, addr, is_ap,
457 0, cur_ht_config);
458 else
459#endif /* CONFIG_IWL4965_HT */
460 sta_id = iwl4965_add_station_flags(priv, addr, is_ap,
461 0, NULL);
6440adb5
CB		 462
463 /* Set up default rate scaling table in device's station table */
b481de9c
ZY		 464 iwl4965_add_station(priv, addr, is_ap);
465
556f8db7 466 return sta_id;
b481de9c
ZY		 467}
468
b481de9c 469/**
bb8c093b 470 * iwl4965_check_rxon_cmd - validate RXON structure is valid
b481de9c
ZY		 471 *
472 * NOTE: This is really only useful during development and can eventually
473 * be #ifdef'd out once the driver is stable and folks aren't actively
474 * making changes
475 */
c1adf9fb 476static int iwl4965_check_rxon_cmd(struct iwl_rxon_cmd *rxon)
b481de9c
ZY		 477{
478 int error = 0;
479 int counter = 1;
480
481 if (rxon->flags & RXON_FLG_BAND_24G_MSK) {
482 error |= le32_to_cpu(rxon->flags &
483 (RXON_FLG_TGJ_NARROW_BAND_MSK |
484 RXON_FLG_RADAR_DETECT_MSK));
485 if (error)
486 IWL_WARNING("check 24G fields %d | %d\n",
487 counter++, error);
488 } else {
489 error |= (rxon->flags & RXON_FLG_SHORT_SLOT_MSK) ?
490 0 : le32_to_cpu(RXON_FLG_SHORT_SLOT_MSK);
491 if (error)
492 IWL_WARNING("check 52 fields %d | %d\n",
493 counter++, error);
494 error |= le32_to_cpu(rxon->flags & RXON_FLG_CCK_MSK);
495 if (error)
496 IWL_WARNING("check 52 CCK %d | %d\n",
497 counter++, error);
498 }
499 error |= (rxon->node_addr[0] | rxon->bssid_addr[0]) & 0x1;
500 if (error)
501 IWL_WARNING("check mac addr %d | %d\n", counter++, error);
502
503 /* make sure basic rates 6Mbps and 1Mbps are supported */
504 error |= (((rxon->ofdm_basic_rates & IWL_RATE_6M_MASK) == 0) &&
505 ((rxon->cck_basic_rates & IWL_RATE_1M_MASK) == 0));
506 if (error)
507 IWL_WARNING("check basic rate %d | %d\n", counter++, error);
508
509 error |= (le16_to_cpu(rxon->assoc_id) > 2007);
510 if (error)
511 IWL_WARNING("check assoc id %d | %d\n", counter++, error);
512
513 error |= ((rxon->flags & (RXON_FLG_CCK_MSK | RXON_FLG_SHORT_SLOT_MSK))
514 == (RXON_FLG_CCK_MSK | RXON_FLG_SHORT_SLOT_MSK));
515 if (error)
516 IWL_WARNING("check CCK and short slot %d | %d\n",
517 counter++, error);
518
519 error |= ((rxon->flags & (RXON_FLG_CCK_MSK | RXON_FLG_AUTO_DETECT_MSK))
520 == (RXON_FLG_CCK_MSK | RXON_FLG_AUTO_DETECT_MSK));
521 if (error)
522 IWL_WARNING("check CCK & auto detect %d | %d\n",
523 counter++, error);
524
525 error |= ((rxon->flags & (RXON_FLG_AUTO_DETECT_MSK |
526 RXON_FLG_TGG_PROTECT_MSK)) == RXON_FLG_TGG_PROTECT_MSK);
527 if (error)
528 IWL_WARNING("check TGG and auto detect %d | %d\n",
529 counter++, error);
530
531 if (error)
532 IWL_WARNING("Tuning to channel %d\n",
533 le16_to_cpu(rxon->channel));
534
535 if (error) {
bb8c093b 536 IWL_ERROR("Not a valid iwl4965_rxon_assoc_cmd field values\n");
b481de9c
ZY		 537 return -1;
538 }
539 return 0;
540}
541
542/**
9fbab516 543 * iwl4965_full_rxon_required - check if full RXON (vs RXON_ASSOC) cmd is needed
01ebd063 544 * @priv: staging_rxon is compared to active_rxon
b481de9c 545 *
9fbab516
BC		 546 * If the RXON structure is changing enough to require a new tune,
547 * or is clearing the RXON_FILTER_ASSOC_MSK, then return 1 to indicate that
548 * a new tune (full RXON command, rather than RXON_ASSOC cmd) is required.
b481de9c 549 */
c79dd5b5 550static int iwl4965_full_rxon_required(struct iwl_priv *priv)
b481de9c
ZY		 551{
552
553 /* These items are only settable from the full RXON command */
554 if (!(priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) ||
555 compare_ether_addr(priv->staging_rxon.bssid_addr,
556 priv->active_rxon.bssid_addr) ||
557 compare_ether_addr(priv->staging_rxon.node_addr,
558 priv->active_rxon.node_addr) ||
559 compare_ether_addr(priv->staging_rxon.wlap_bssid_addr,
560 priv->active_rxon.wlap_bssid_addr) ||
561 (priv->staging_rxon.dev_type != priv->active_rxon.dev_type) ||
562 (priv->staging_rxon.channel != priv->active_rxon.channel) ||
563 (priv->staging_rxon.air_propagation !=
564 priv->active_rxon.air_propagation) ||
565 (priv->staging_rxon.ofdm_ht_single_stream_basic_rates !=
566 priv->active_rxon.ofdm_ht_single_stream_basic_rates) ||
567 (priv->staging_rxon.ofdm_ht_dual_stream_basic_rates !=
568 priv->active_rxon.ofdm_ht_dual_stream_basic_rates) ||
569 (priv->staging_rxon.rx_chain != priv->active_rxon.rx_chain) ||
570 (priv->staging_rxon.assoc_id != priv->active_rxon.assoc_id))
571 return 1;
572
573 /* flags, filter_flags, ofdm_basic_rates, and cck_basic_rates can
574 * be updated with the RXON_ASSOC command -- however only some
575 * flag transitions are allowed using RXON_ASSOC */
576
577 /* Check if we are not switching bands */
578 if ((priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) !=
579 (priv->active_rxon.flags & RXON_FLG_BAND_24G_MSK))
580 return 1;
581
582 /* Check if we are switching association toggle */
583 if ((priv->staging_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) !=
584 (priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK))
585 return 1;
586
587 return 0;
588}
589
b481de9c 590/**
bb8c093b 591 * iwl4965_commit_rxon - commit staging_rxon to hardware
b481de9c 592 *
01ebd063 593 * The RXON command in staging_rxon is committed to the hardware and
b481de9c
ZY		 594 * the active_rxon structure is updated with the new data. This
595 * function correctly transitions out of the RXON_ASSOC_MSK state if
596 * a HW tune is required based on the RXON structure changes.
597 */
c79dd5b5 598static int iwl4965_commit_rxon(struct iwl_priv *priv)
b481de9c
ZY		 599{
600 /* cast away the const for active_rxon in this function */
c1adf9fb 601 struct iwl_rxon_cmd *active_rxon = (void *)&priv->active_rxon;
0795af57 602 DECLARE_MAC_BUF(mac);
b481de9c
ZY		 603 int rc = 0;
604
fee1247a 605 if (!iwl_is_alive(priv))
b481de9c
ZY		 606 return -1;
607
608 /* always get timestamp with Rx frame */
609 priv->staging_rxon.flags |= RXON_FLG_TSF2HOST_MSK;
610
bb8c093b 611 rc = iwl4965_check_rxon_cmd(&priv->staging_rxon);
b481de9c
ZY		 612 if (rc) {
613 IWL_ERROR("Invalid RXON configuration. Not committing.\n");
614 return -EINVAL;
615 }
616
617 /* If we don't need to send a full RXON, we can use
bb8c093b 618 * iwl4965_rxon_assoc_cmd which is used to reconfigure filter
b481de9c 619 * and other flags for the current radio configuration. */
bb8c093b 620 if (!iwl4965_full_rxon_required(priv)) {
7e8c519e 621 rc = iwl_send_rxon_assoc(priv);
b481de9c
ZY		 622 if (rc) {
623 IWL_ERROR("Error setting RXON_ASSOC "
624 "configuration (%d).\n", rc);
625 return rc;
626 }
627
628 memcpy(active_rxon, &priv->staging_rxon, sizeof(*active_rxon));
629
630 return 0;
631 }
632
633 /* station table will be cleared */
634 priv->assoc_station_added = 0;
635
b481de9c
ZY		 636 /* If we are currently associated and the new config requires
637 * an RXON_ASSOC and the new config wants the associated mask enabled,
638 * we must clear the associated from the active configuration
639 * before we apply the new config */
3109ece1 640 if (iwl_is_associated(priv) &&
b481de9c
ZY		 641 (priv->staging_rxon.filter_flags & RXON_FILTER_ASSOC_MSK)) {
642 IWL_DEBUG_INFO("Toggling associated bit on current RXON\n");
643 active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK;
644
857485c0 645 rc = iwl_send_cmd_pdu(priv, REPLY_RXON,
c1adf9fb 646 sizeof(struct iwl_rxon_cmd),
b481de9c
ZY		 647 &priv->active_rxon);
648
649 /* If the mask clearing failed then we set
650 * active_rxon back to what it was previously */
651 if (rc) {
652 active_rxon->filter_flags |= RXON_FILTER_ASSOC_MSK;
653 IWL_ERROR("Error clearing ASSOC_MSK on current "
654 "configuration (%d).\n", rc);
655 return rc;
656 }
b481de9c
ZY		 657 }
658
659 IWL_DEBUG_INFO("Sending RXON\n"
660 "* with%s RXON_FILTER_ASSOC_MSK\n"
661 "* channel = %d\n"
0795af57 662 "* bssid = %s\n",
b481de9c
ZY		 663 ((priv->staging_rxon.filter_flags &
664 RXON_FILTER_ASSOC_MSK) ? "" : "out"),
665 le16_to_cpu(priv->staging_rxon.channel),
0795af57 666 print_mac(mac, priv->staging_rxon.bssid_addr));
b481de9c 667
099b40b7 668 iwl4965_set_rxon_hwcrypto(priv, !priv->hw_params.sw_crypto);
b481de9c 669 /* Apply the new configuration */
857485c0 670 rc = iwl_send_cmd_pdu(priv, REPLY_RXON,
c1adf9fb 671 sizeof(struct iwl_rxon_cmd), &priv->staging_rxon);
b481de9c
ZY		 672 if (rc) {
673 IWL_ERROR("Error setting new configuration (%d).\n", rc);
674 return rc;
675 }
676
bf85ea4f 677 iwlcore_clear_stations_table(priv);
556f8db7 678
b481de9c
ZY		 679 if (!priv->error_recovering)
680 priv->start_calib = 0;
681
f0832f13 682 iwl_init_sensitivity(priv);
b481de9c
ZY		 683
684 memcpy(active_rxon, &priv->staging_rxon, sizeof(*active_rxon));
685
686 /* If we issue a new RXON command which required a tune then we must
687 * send a new TXPOWER command or we won't be able to Tx any frames */
bb8c093b 688 rc = iwl4965_hw_reg_send_txpower(priv);
b481de9c
ZY		 689 if (rc) {
690 IWL_ERROR("Error setting Tx power (%d).\n", rc);
691 return rc;
692 }
693
694 /* Add the broadcast address so we can send broadcast frames */
bb8c093b 695 if (iwl4965_rxon_add_station(priv, iwl4965_broadcast_addr, 0) ==
b481de9c
ZY		 696 IWL_INVALID_STATION) {
697 IWL_ERROR("Error adding BROADCAST address for transmit.\n");
698 return -EIO;
699 }
700
701 /* If we have set the ASSOC_MSK and we are in BSS mode then
702 * add the IWL_AP_ID to the station rate table */
3109ece1 703 if (iwl_is_associated(priv) &&
b481de9c 704 (priv->iw_mode == IEEE80211_IF_TYPE_STA)) {
bb8c093b 705 if (iwl4965_rxon_add_station(priv, priv->active_rxon.bssid_addr, 1)
b481de9c
ZY		 706 == IWL_INVALID_STATION) {
707 IWL_ERROR("Error adding AP address for transmit.\n");
708 return -EIO;
709 }
710 priv->assoc_station_added = 1;
6974e363
EG		 711 if (priv->default_wep_key &&
712 iwl_send_static_wepkey_cmd(priv, 0))
713 IWL_ERROR("Could not send WEP static key.\n");
b481de9c
ZY		 714 }
715
716 return 0;
717}
718
5da4b55f
MA		 719void iwl4965_update_chain_flags(struct iwl_priv *priv)
720{
721
c7de35cd 722 iwl_set_rxon_chain(priv);
5da4b55f
MA		 723 iwl4965_commit_rxon(priv);
724}
725
c79dd5b5 726static int iwl4965_send_bt_config(struct iwl_priv *priv)
b481de9c 727{
bb8c093b 728 struct iwl4965_bt_cmd bt_cmd = {
b481de9c
ZY		 729 .flags = 3,
730 .lead_time = 0xAA,
731 .max_kill = 1,
732 .kill_ack_mask = 0,
733 .kill_cts_mask = 0,
734 };
735
857485c0 736 return iwl_send_cmd_pdu(priv, REPLY_BT_CONFIG,
bb8c093b 737 sizeof(struct iwl4965_bt_cmd), &bt_cmd);
b481de9c
ZY		 738}
739
c79dd5b5 740static int iwl4965_send_scan_abort(struct iwl_priv *priv)
b481de9c 741{
db11d634
TW		 742 int ret = 0;
743 struct iwl_rx_packet *res;
857485c0 744 struct iwl_host_cmd cmd = {
b481de9c
ZY		 745 .id = REPLY_SCAN_ABORT_CMD,
746 .meta.flags = CMD_WANT_SKB,
747 };
748
749 /* If there isn't a scan actively going on in the hardware
750 * then we are in between scan bands and not actually
751 * actively scanning, so don't send the abort command */
752 if (!test_bit(STATUS_SCAN_HW, &priv->status)) {
753 clear_bit(STATUS_SCAN_ABORTING, &priv->status);
754 return 0;
755 }
756
db11d634
TW		 757 ret = iwl_send_cmd_sync(priv, &cmd);
758 if (ret) {
b481de9c 759 clear_bit(STATUS_SCAN_ABORTING, &priv->status);
db11d634 760 return ret;
b481de9c
ZY		 761 }
762
db11d634 763 res = (struct iwl_rx_packet *)cmd.meta.u.skb->data;
b481de9c
ZY		 764 if (res->u.status != CAN_ABORT_STATUS) {
765 /* The scan abort will return 1 for success or
766 * 2 for "failure". A failure condition can be
767 * due to simply not being in an active scan which
768 * can occur if we send the scan abort before we
769 * the microcode has notified us that a scan is
770 * completed. */
771 IWL_DEBUG_INFO("SCAN_ABORT returned %d.\n", res->u.status);
772 clear_bit(STATUS_SCAN_ABORTING, &priv->status);
773 clear_bit(STATUS_SCAN_HW, &priv->status);
774 }
775
776 dev_kfree_skb_any(cmd.meta.u.skb);
777
db11d634 778 return ret;
b481de9c
ZY		 779}
780
b481de9c
ZY		 781/*
782 * CARD_STATE_CMD
783 *
9fbab516 784 * Use: Sets the device's internal card state to enable, disable, or halt
b481de9c
ZY		 785 *
786 * When in the 'enable' state the card operates as normal.
787 * When in the 'disable' state, the card enters into a low power mode.
788 * When in the 'halt' state, the card is shut down and must be fully
789 * restarted to come back on.
790 */
c79dd5b5 791static int iwl4965_send_card_state(struct iwl_priv *priv, u32 flags, u8 meta_flag)
b481de9c 792{
857485c0 793 struct iwl_host_cmd cmd = {
b481de9c
ZY		 794 .id = REPLY_CARD_STATE_CMD,
795 .len = sizeof(u32),
796 .data = &flags,
797 .meta.flags = meta_flag,
798 };
799
857485c0 800 return iwl_send_cmd(priv, &cmd);
b481de9c
ZY		 801}
802
c79dd5b5 803static void iwl4965_clear_free_frames(struct iwl_priv *priv)
b481de9c
ZY		 804{
805 struct list_head *element;
806
807 IWL_DEBUG_INFO("%d frames on pre-allocated heap on clear.\n",
808 priv->frames_count);
809
810 while (!list_empty(&priv->free_frames)) {
811 element = priv->free_frames.next;
812 list_del(element);
bb8c093b 813 kfree(list_entry(element, struct iwl4965_frame, list));
b481de9c
ZY		 814 priv->frames_count--;
815 }
816
817 if (priv->frames_count) {
818 IWL_WARNING("%d frames still in use. Did we lose one?\n",
819 priv->frames_count);
820 priv->frames_count = 0;
821 }
822}
823
c79dd5b5 824static struct iwl4965_frame *iwl4965_get_free_frame(struct iwl_priv *priv)
b481de9c 825{
bb8c093b 826 struct iwl4965_frame *frame;
b481de9c
ZY		 827 struct list_head *element;
828 if (list_empty(&priv->free_frames)) {
829 frame = kzalloc(sizeof(*frame), GFP_KERNEL);
830 if (!frame) {
831 IWL_ERROR("Could not allocate frame!\n");
832 return NULL;
833 }
834
835 priv->frames_count++;
836 return frame;
837 }
838
839 element = priv->free_frames.next;
840 list_del(element);
bb8c093b 841 return list_entry(element, struct iwl4965_frame, list);
b481de9c
ZY		 842}
843
c79dd5b5 844static void iwl4965_free_frame(struct iwl_priv *priv, struct iwl4965_frame *frame)
b481de9c
ZY		 845{
846 memset(frame, 0, sizeof(*frame));
847 list_add(&frame->list, &priv->free_frames);
848}
849
c79dd5b5 850unsigned int iwl4965_fill_beacon_frame(struct iwl_priv *priv,
b481de9c
ZY		 851 struct ieee80211_hdr *hdr,
852 const u8 *dest, int left)
853{
854
3109ece1 855 if (!iwl_is_associated(priv) || !priv->ibss_beacon ||
b481de9c
ZY		 856 ((priv->iw_mode != IEEE80211_IF_TYPE_IBSS) &&
857 (priv->iw_mode != IEEE80211_IF_TYPE_AP)))
858 return 0;
859
860 if (priv->ibss_beacon->len > left)
861 return 0;
862
863 memcpy(hdr, priv->ibss_beacon->data, priv->ibss_beacon->len);
864
865 return priv->ibss_beacon->len;
866}
867
39e88504 868static u8 iwl4965_rate_get_lowest_plcp(struct iwl_priv *priv)
b481de9c 869{
39e88504
GC		 870 int i;
871 int rate_mask;
872
873 /* Set rate mask*/
874 if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK)
875 rate_mask = priv->active_rate_basic & 0xF;
876 else
877 rate_mask = priv->active_rate_basic & 0xFF0;
b481de9c 878
39e88504 879 /* Find lowest valid rate */
b481de9c 880 for (i = IWL_RATE_1M_INDEX; i != IWL_RATE_INVALID;
39e88504 881 i = iwl4965_rates[i].next_ieee) {
b481de9c 882 if (rate_mask & (1 << i))
bb8c093b 883 return iwl4965_rates[i].plcp;
b481de9c
ZY		 884 }
885
39e88504
GC		 886 /* No valid rate was found. Assign the lowest one */
887 if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK)
888 return IWL_RATE_1M_PLCP;
889 else
890 return IWL_RATE_6M_PLCP;
b481de9c
ZY		 891}
892
c79dd5b5 893static int iwl4965_send_beacon_cmd(struct iwl_priv *priv)
b481de9c 894{
bb8c093b 895 struct iwl4965_frame *frame;
b481de9c
ZY		 896 unsigned int frame_size;
897 int rc;
898 u8 rate;
899
bb8c093b 900 frame = iwl4965_get_free_frame(priv);
b481de9c
ZY		 901
902 if (!frame) {
903 IWL_ERROR("Could not obtain free frame buffer for beacon "
904 "command.\n");
905 return -ENOMEM;
906 }
907
39e88504 908 rate = iwl4965_rate_get_lowest_plcp(priv);
b481de9c 909
bb8c093b 910 frame_size = iwl4965_hw_get_beacon_cmd(priv, frame, rate);
b481de9c 911
857485c0 912 rc = iwl_send_cmd_pdu(priv, REPLY_TX_BEACON, frame_size,
b481de9c
ZY		 913 &frame->u.cmd[0]);
914
bb8c093b 915 iwl4965_free_frame(priv, frame);
b481de9c
ZY		 916
917 return rc;
918}
919
b481de9c
ZY		 920/******************************************************************************
921 *
922 * Misc. internal state and helper functions
923 *
924 ******************************************************************************/
b481de9c 925
b481de9c 926/**
bb8c093b 927 * iwl4965_supported_rate_to_ie - fill in the supported rate in IE field
b481de9c
ZY		 928 *
929 * return : set the bit for each supported rate insert in ie
930 */
bb8c093b 931static u16 iwl4965_supported_rate_to_ie(u8 *ie, u16 supported_rate,
c7c46676 932 u16 basic_rate, int *left)
b481de9c
ZY		 933{
934 u16 ret_rates = 0, bit;
935 int i;
c7c46676
TW		 936 u8 *cnt = ie;
937 u8 *rates = ie + 1;
b481de9c
ZY		 938
939 for (bit = 1, i = 0; i < IWL_RATE_COUNT; i++, bit <<= 1) {
940 if (bit & supported_rate) {
941 ret_rates |= bit;
bb8c093b 942 rates[*cnt] = iwl4965_rates[i].ieee |
c7c46676
TW		 943 ((bit & basic_rate) ? 0x80 : 0x00);
944 (*cnt)++;
945 (*left)--;
946 if ((*left <= 0) ||
947 (*cnt >= IWL_SUPPORTED_RATES_IE_LEN))
b481de9c
ZY		 948 break;
949 }
950 }
951
952 return ret_rates;
953}
954
d1141dfb
EG		 955#ifdef CONFIG_IWL4965_HT
956static void iwl4965_ht_conf(struct iwl_priv *priv,
957 struct ieee80211_bss_conf *bss_conf)
958{
959 struct ieee80211_ht_info *ht_conf = bss_conf->ht_conf;
960 struct ieee80211_ht_bss_info *ht_bss_conf = bss_conf->ht_bss_conf;
961 struct iwl_ht_info *iwl_conf = &priv->current_ht_config;
962
963 IWL_DEBUG_MAC80211("enter: \n");
964
965 iwl_conf->is_ht = bss_conf->assoc_ht;
966
967 if (!iwl_conf->is_ht)
968 return;
969
970 priv->ps_mode = (u8)((ht_conf->cap & IEEE80211_HT_CAP_MIMO_PS) >> 2);
971
972 if (ht_conf->cap & IEEE80211_HT_CAP_SGI_20)
973 iwl_conf->sgf |= 0x1;
974 if (ht_conf->cap & IEEE80211_HT_CAP_SGI_40)
975 iwl_conf->sgf |= 0x2;
976
977 iwl_conf->is_green_field = !!(ht_conf->cap & IEEE80211_HT_CAP_GRN_FLD);
978 iwl_conf->max_amsdu_size =
979 !!(ht_conf->cap & IEEE80211_HT_CAP_MAX_AMSDU);
980
981 iwl_conf->supported_chan_width =
982 !!(ht_conf->cap & IEEE80211_HT_CAP_SUP_WIDTH);
983 iwl_conf->extension_chan_offset =
984 ht_bss_conf->bss_cap & IEEE80211_HT_IE_CHA_SEC_OFFSET;
985 /* If no above or below channel supplied disable FAT channel */
986 if (iwl_conf->extension_chan_offset != IWL_EXT_CHANNEL_OFFSET_ABOVE &&
987 iwl_conf->extension_chan_offset != IWL_EXT_CHANNEL_OFFSET_BELOW)
988 iwl_conf->supported_chan_width = 0;
989
990 iwl_conf->tx_mimo_ps_mode =
991 (u8)((ht_conf->cap & IEEE80211_HT_CAP_MIMO_PS) >> 2);
992 memcpy(iwl_conf->supp_mcs_set, ht_conf->supp_mcs_set, 16);
993
994 iwl_conf->control_channel = ht_bss_conf->primary_channel;
995 iwl_conf->tx_chan_width =
996 !!(ht_bss_conf->bss_cap & IEEE80211_HT_IE_CHA_WIDTH);
997 iwl_conf->ht_protection =
998 ht_bss_conf->bss_op_mode & IEEE80211_HT_IE_HT_PROTECTION;
999 iwl_conf->non_GF_STA_present =
1000 !!(ht_bss_conf->bss_op_mode & IEEE80211_HT_IE_NON_GF_STA_PRSNT);
1001
1002 IWL_DEBUG_MAC80211("control channel %d\n", iwl_conf->control_channel);
1003 IWL_DEBUG_MAC80211("leave\n");
1004}
1005
1006static void iwl_ht_cap_to_ie(const struct ieee80211_supported_band *sband,
1007 u8 *pos, int *left)
1008{
1009 struct ieee80211_ht_cap *ht_cap;
1010
1011 if (!sband || !sband->ht_info.ht_supported)
1012 return;
1013
1014 if (*left < sizeof(struct ieee80211_ht_cap))
1015 return;
1016
1017 *pos++ = sizeof(struct ieee80211_ht_cap);
1018 ht_cap = (struct ieee80211_ht_cap *) pos;
1019
1020 ht_cap->cap_info = cpu_to_le16(sband->ht_info.cap);
1021 memcpy(ht_cap->supp_mcs_set, sband->ht_info.supp_mcs_set, 16);
1022 ht_cap->ampdu_params_info =
1023 (sband->ht_info.ampdu_factor & IEEE80211_HT_CAP_AMPDU_FACTOR) |
1024 ((sband->ht_info.ampdu_density << 2) &
1025 IEEE80211_HT_CAP_AMPDU_DENSITY);
1026 *left -= sizeof(struct ieee80211_ht_cap);
1027}
1028#else
1029static inline void iwl4965_ht_conf(struct iwl_priv *priv,
1030 struct ieee80211_bss_conf *bss_conf)
1031{
1032}
1033static void iwl_ht_cap_to_ie(const struct ieee80211_supported_band *sband,
1034 u8 *pos, int *left)
1035{
1036}
1037#endif
1038
1039
b481de9c 1040/**
bb8c093b 1041 * iwl4965_fill_probe_req - fill in all required fields and IE for probe request
b481de9c 1042 */
c79dd5b5 1043static u16 iwl4965_fill_probe_req(struct iwl_priv *priv,
78330fdd
TW		 1044 enum ieee80211_band band,
1045 struct ieee80211_mgmt *frame,
1046 int left, int is_direct)
b481de9c
ZY		 1047{
1048 int len = 0;
1049 u8 *pos = NULL;
bee488db 1050 u16 active_rates, ret_rates, cck_rates, active_rate_basic;
78330fdd 1051 const struct ieee80211_supported_band *sband =
d1141dfb 1052 iwl_get_hw_mode(priv, band);
b481de9c
ZY		 1053
1054 /* Make sure there is enough space for the probe request,
1055 * two mandatory IEs and the data */
1056 left -= 24;
1057 if (left < 0)
1058 return 0;
1059 len += 24;
1060
1061 frame->frame_control = cpu_to_le16(IEEE80211_STYPE_PROBE_REQ);
bb8c093b 1062 memcpy(frame->da, iwl4965_broadcast_addr, ETH_ALEN);
b481de9c 1063 memcpy(frame->sa, priv->mac_addr, ETH_ALEN);
bb8c093b 1064 memcpy(frame->bssid, iwl4965_broadcast_addr, ETH_ALEN);
b481de9c
ZY		 1065 frame->seq_ctrl = 0;
1066
1067 /* fill in our indirect SSID IE */
1068 /* ...next IE... */
1069
1070 left -= 2;
1071 if (left < 0)
1072 return 0;
1073 len += 2;
1074 pos = &(frame->u.probe_req.variable[0]);
1075 *pos++ = WLAN_EID_SSID;
1076 *pos++ = 0;
1077
1078 /* fill in our direct SSID IE... */
1079 if (is_direct) {
1080 /* ...next IE... */
1081 left -= 2 + priv->essid_len;
1082 if (left < 0)
1083 return 0;
1084 /* ... fill it in... */
1085 *pos++ = WLAN_EID_SSID;
1086 *pos++ = priv->essid_len;
1087 memcpy(pos, priv->essid, priv->essid_len);
1088 pos += priv->essid_len;
1089 len += 2 + priv->essid_len;
1090 }
1091
1092 /* fill in supported rate */
1093 /* ...next IE... */
1094 left -= 2;
1095 if (left < 0)
1096 return 0;
c7c46676 1097
b481de9c
ZY		 1098 /* ... fill it in... */
1099 *pos++ = WLAN_EID_SUPP_RATES;
1100 *pos = 0;
c7c46676 1101
bee488db 1102 /* exclude 60M rate */
1103 active_rates = priv->rates_mask;
1104 active_rates &= ~IWL_RATE_60M_MASK;
1105
1106 active_rate_basic = active_rates & IWL_BASIC_RATES_MASK;
b481de9c 1107
c7c46676 1108 cck_rates = IWL_CCK_RATES_MASK & active_rates;
bb8c093b 1109 ret_rates = iwl4965_supported_rate_to_ie(pos, cck_rates,
bee488db 1110 active_rate_basic, &left);
c7c46676
TW		 1111 active_rates &= ~ret_rates;
1112
bb8c093b 1113 ret_rates = iwl4965_supported_rate_to_ie(pos, active_rates,
bee488db 1114 active_rate_basic, &left);
c7c46676
TW		 1115 active_rates &= ~ret_rates;
1116
b481de9c
ZY		 1117 len += 2 + *pos;
1118 pos += (*pos) + 1;
c7c46676 1119 if (active_rates == 0)
b481de9c
ZY		 1120 goto fill_end;
1121
1122 /* fill in supported extended rate */
1123 /* ...next IE... */
1124 left -= 2;
1125 if (left < 0)
1126 return 0;
1127 /* ... fill it in... */
1128 *pos++ = WLAN_EID_EXT_SUPP_RATES;
1129 *pos = 0;
bb8c093b 1130 iwl4965_supported_rate_to_ie(pos, active_rates,
bee488db 1131 active_rate_basic, &left);
b481de9c
ZY		 1132 if (*pos > 0)
1133 len += 2 + *pos;
1134
b481de9c 1135 fill_end:
d1141dfb
EG		 1136 /* fill in HT IE */
1137 left -= 2;
1138 if (left < 0)
1139 return 0;
1140
1141 *pos++ = WLAN_EID_HT_CAPABILITY;
1142 *pos = 0;
1143
1144 iwl_ht_cap_to_ie(sband, pos, &left);
1145
1146 if (*pos > 0)
1147 len += 2 + *pos;
b481de9c
ZY		 1148 return (u16)len;
1149}
1150
1151/*
1152 * QoS support
1153*/
c79dd5b5 1154static int iwl4965_send_qos_params_command(struct iwl_priv *priv,
bb8c093b 1155 struct iwl4965_qosparam_cmd *qos)
b481de9c
ZY		 1156{
1157
857485c0 1158 return iwl_send_cmd_pdu(priv, REPLY_QOS_PARAM,
bb8c093b 1159 sizeof(struct iwl4965_qosparam_cmd), qos);
b481de9c
ZY		 1160}
1161
c79dd5b5 1162static void iwl4965_activate_qos(struct iwl_priv *priv, u8 force)
b481de9c
ZY		 1163{
1164 unsigned long flags;
1165
b481de9c
ZY		 1166 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
1167 return;
1168
1169 if (!priv->qos_data.qos_enable)
1170 return;
1171
1172 spin_lock_irqsave(&priv->lock, flags);
1173 priv->qos_data.def_qos_parm.qos_flags = 0;
1174
1175 if (priv->qos_data.qos_cap.q_AP.queue_request &&
1176 !priv->qos_data.qos_cap.q_AP.txop_request)
1177 priv->qos_data.def_qos_parm.qos_flags |=
1178 QOS_PARAM_FLG_TXOP_TYPE_MSK;
b481de9c
ZY		 1179 if (priv->qos_data.qos_active)
1180 priv->qos_data.def_qos_parm.qos_flags |=
1181 QOS_PARAM_FLG_UPDATE_EDCA_MSK;
1182
c8b0e6e1 1183#ifdef CONFIG_IWL4965_HT
fd105e79 1184 if (priv->current_ht_config.is_ht)
f1f1f5c7 1185 priv->qos_data.def_qos_parm.qos_flags |= QOS_PARAM_FLG_TGN_MSK;
c8b0e6e1 1186#endif /* CONFIG_IWL4965_HT */
f1f1f5c7 1187
b481de9c
ZY		 1188 spin_unlock_irqrestore(&priv->lock, flags);
1189
3109ece1 1190 if (force || iwl_is_associated(priv)) {
f1f1f5c7
TW		 1191 IWL_DEBUG_QOS("send QoS cmd with Qos active=%d FLAGS=0x%X\n",
1192 priv->qos_data.qos_active,
1193 priv->qos_data.def_qos_parm.qos_flags);
b481de9c 1194
bb8c093b 1195 iwl4965_send_qos_params_command(priv,
b481de9c
ZY		 1196 &(priv->qos_data.def_qos_parm));
1197 }
1198}
1199
c79dd5b5 1200int iwl4965_is_network_packet(struct iwl_priv *priv, struct ieee80211_hdr *header)
b481de9c
ZY		 1201{
1202 /* Filter incoming packets to determine if they are targeted toward
1203 * this network, discarding packets coming from ourselves */
1204 switch (priv->iw_mode) {
1205 case IEEE80211_IF_TYPE_IBSS: /* Header: Dest. | Source | BSSID */
1206 /* packets from our adapter are dropped (echo) */
1207 if (!compare_ether_addr(header->addr2, priv->mac_addr))
1208 return 0;
1209 /* {broad,multi}cast packets to our IBSS go through */
1210 if (is_multicast_ether_addr(header->addr1))
1211 return !compare_ether_addr(header->addr3, priv->bssid);
1212 /* packets to our adapter go through */
1213 return !compare_ether_addr(header->addr1, priv->mac_addr);
1214 case IEEE80211_IF_TYPE_STA: /* Header: Dest. | AP{BSSID} | Source */
1215 /* packets from our adapter are dropped (echo) */
1216 if (!compare_ether_addr(header->addr3, priv->mac_addr))
1217 return 0;
1218 /* {broad,multi}cast packets to our BSS go through */
1219 if (is_multicast_ether_addr(header->addr1))
1220 return !compare_ether_addr(header->addr2, priv->bssid);
1221 /* packets to our adapter go through */
1222 return !compare_ether_addr(header->addr1, priv->mac_addr);
69dc5d9d
TW		 1223 default:
1224 break;
b481de9c
ZY		 1225 }
1226
1227 return 1;
1228}
1229
1230#define TX_STATUS_ENTRY(x) case TX_STATUS_FAIL_ ## x: return #x
1231
bb8c093b 1232static const char *iwl4965_get_tx_fail_reason(u32 status)
b481de9c
ZY		 1233{
1234 switch (status & TX_STATUS_MSK) {
1235 case TX_STATUS_SUCCESS:
1236 return "SUCCESS";
1237 TX_STATUS_ENTRY(SHORT_LIMIT);
1238 TX_STATUS_ENTRY(LONG_LIMIT);
1239 TX_STATUS_ENTRY(FIFO_UNDERRUN);
1240 TX_STATUS_ENTRY(MGMNT_ABORT);
1241 TX_STATUS_ENTRY(NEXT_FRAG);
1242 TX_STATUS_ENTRY(LIFE_EXPIRE);
1243 TX_STATUS_ENTRY(DEST_PS);
1244 TX_STATUS_ENTRY(ABORTED);
1245 TX_STATUS_ENTRY(BT_RETRY);
1246 TX_STATUS_ENTRY(STA_INVALID);
1247 TX_STATUS_ENTRY(FRAG_DROPPED);
1248 TX_STATUS_ENTRY(TID_DISABLE);
1249 TX_STATUS_ENTRY(FRAME_FLUSHED);
1250 TX_STATUS_ENTRY(INSUFFICIENT_CF_POLL);
1251 TX_STATUS_ENTRY(TX_LOCKED);
1252 TX_STATUS_ENTRY(NO_BEACON_ON_RADAR);
1253 }
1254
1255 return "UNKNOWN";
1256}
1257
1258/**
bb8c093b 1259 * iwl4965_scan_cancel - Cancel any currently executing HW scan
b481de9c
ZY		 1260 *
1261 * NOTE: priv->mutex is not required before calling this function
1262 */
c79dd5b5 1263static int iwl4965_scan_cancel(struct iwl_priv *priv)
b481de9c
ZY		 1264{
1265 if (!test_bit(STATUS_SCAN_HW, &priv->status)) {
1266 clear_bit(STATUS_SCANNING, &priv->status);
1267 return 0;
1268 }
1269
1270 if (test_bit(STATUS_SCANNING, &priv->status)) {
1271 if (!test_bit(STATUS_SCAN_ABORTING, &priv->status)) {
1272 IWL_DEBUG_SCAN("Queuing scan abort.\n");
1273 set_bit(STATUS_SCAN_ABORTING, &priv->status);
1274 queue_work(priv->workqueue, &priv->abort_scan);
1275
1276 } else
1277 IWL_DEBUG_SCAN("Scan abort already in progress.\n");
1278
1279 return test_bit(STATUS_SCANNING, &priv->status);
1280 }
1281
1282 return 0;
1283}
1284
1285/**
bb8c093b 1286 * iwl4965_scan_cancel_timeout - Cancel any currently executing HW scan
b481de9c
ZY		 1287 * @ms: amount of time to wait (in milliseconds) for scan to abort
1288 *
1289 * NOTE: priv->mutex must be held before calling this function
1290 */
c79dd5b5 1291static int iwl4965_scan_cancel_timeout(struct iwl_priv *priv, unsigned long ms)
b481de9c
ZY		 1292{
1293 unsigned long now = jiffies;
1294 int ret;
1295
bb8c093b 1296 ret = iwl4965_scan_cancel(priv);
b481de9c
ZY		 1297 if (ret && ms) {
1298 mutex_unlock(&priv->mutex);
1299 while (!time_after(jiffies, now + msecs_to_jiffies(ms)) &&
1300 test_bit(STATUS_SCANNING, &priv->status))
1301 msleep(1);
1302 mutex_lock(&priv->mutex);
1303
1304 return test_bit(STATUS_SCANNING, &priv->status);
1305 }
1306
1307 return ret;
1308}
1309
c79dd5b5 1310static void iwl4965_sequence_reset(struct iwl_priv *priv)
b481de9c
ZY		 1311{
1312 /* Reset ieee stats */
1313
1314 /* We don't reset the net_device_stats (ieee->stats) on
1315 * re-association */
1316
1317 priv->last_seq_num = -1;
1318 priv->last_frag_num = -1;
1319 priv->last_packet_time = 0;
1320
bb8c093b 1321 iwl4965_scan_cancel(priv);
b481de9c
ZY		 1322}
1323
1324#define MAX_UCODE_BEACON_INTERVAL 4096
1325#define INTEL_CONN_LISTEN_INTERVAL __constant_cpu_to_le16(0xA)
1326
bb8c093b 1327static __le16 iwl4965_adjust_beacon_interval(u16 beacon_val)
b481de9c
ZY		 1328{
1329 u16 new_val = 0;
1330 u16 beacon_factor = 0;
1331
1332 beacon_factor =
1333 (beacon_val + MAX_UCODE_BEACON_INTERVAL)
1334 / MAX_UCODE_BEACON_INTERVAL;
1335 new_val = beacon_val / beacon_factor;
1336
1337 return cpu_to_le16(new_val);
1338}
1339
c79dd5b5 1340static void iwl4965_setup_rxon_timing(struct iwl_priv *priv)
b481de9c
ZY		 1341{
1342 u64 interval_tm_unit;
1343 u64 tsf, result;
1344 unsigned long flags;
1345 struct ieee80211_conf *conf = NULL;
1346 u16 beacon_int = 0;
1347
1348 conf = ieee80211_get_hw_conf(priv->hw);
1349
1350 spin_lock_irqsave(&priv->lock, flags);
3109ece1
TW		 1351 priv->rxon_timing.timestamp.dw[1] = cpu_to_le32(priv->timestamp >> 32);
1352 priv->rxon_timing.timestamp.dw[0] =
1353 cpu_to_le32(priv->timestamp & 0xFFFFFFFF);
b481de9c
ZY		 1354
1355 priv->rxon_timing.listen_interval = INTEL_CONN_LISTEN_INTERVAL;
1356
3109ece1 1357 tsf = priv->timestamp;
b481de9c
ZY		 1358
1359 beacon_int = priv->beacon_int;
1360 spin_unlock_irqrestore(&priv->lock, flags);
1361
1362 if (priv->iw_mode == IEEE80211_IF_TYPE_STA) {
1363 if (beacon_int == 0) {
1364 priv->rxon_timing.beacon_interval = cpu_to_le16(100);
1365 priv->rxon_timing.beacon_init_val = cpu_to_le32(102400);
1366 } else {
1367 priv->rxon_timing.beacon_interval =
1368 cpu_to_le16(beacon_int);
1369 priv->rxon_timing.beacon_interval =
bb8c093b 1370 iwl4965_adjust_beacon_interval(
b481de9c
ZY		 1371 le16_to_cpu(priv->rxon_timing.beacon_interval));
1372 }
1373
1374 priv->rxon_timing.atim_window = 0;
1375 } else {
1376 priv->rxon_timing.beacon_interval =
bb8c093b 1377 iwl4965_adjust_beacon_interval(conf->beacon_int);
b481de9c
ZY		 1378 /* TODO: we need to get atim_window from upper stack
1379 * for now we set to 0 */
1380 priv->rxon_timing.atim_window = 0;
1381 }
1382
1383 interval_tm_unit =
1384 (le16_to_cpu(priv->rxon_timing.beacon_interval) * 1024);
1385 result = do_div(tsf, interval_tm_unit);
1386 priv->rxon_timing.beacon_init_val =
1387 cpu_to_le32((u32) ((u64) interval_tm_unit - result));
1388
1389 IWL_DEBUG_ASSOC
1390 ("beacon interval %d beacon timer %d beacon tim %d\n",
1391 le16_to_cpu(priv->rxon_timing.beacon_interval),
1392 le32_to_cpu(priv->rxon_timing.beacon_init_val),
1393 le16_to_cpu(priv->rxon_timing.atim_window));
1394}
1395
c79dd5b5 1396static int iwl4965_scan_initiate(struct iwl_priv *priv)
b481de9c
ZY		 1397{
1398 if (priv->iw_mode == IEEE80211_IF_TYPE_AP) {
1399 IWL_ERROR("APs don't scan.\n");
1400 return 0;
1401 }
1402
fee1247a 1403 if (!iwl_is_ready_rf(priv)) {
b481de9c
ZY		 1404 IWL_DEBUG_SCAN("Aborting scan due to not ready.\n");
1405 return -EIO;
1406 }
1407
1408 if (test_bit(STATUS_SCANNING, &priv->status)) {
1409 IWL_DEBUG_SCAN("Scan already in progress.\n");
1410 return -EAGAIN;
1411 }
1412
1413 if (test_bit(STATUS_SCAN_ABORTING, &priv->status)) {
1414 IWL_DEBUG_SCAN("Scan request while abort pending. "
1415 "Queuing.\n");
1416 return -EAGAIN;
1417 }
1418
1419 IWL_DEBUG_INFO("Starting scan...\n");
1420 priv->scan_bands = 2;
1421 set_bit(STATUS_SCANNING, &priv->status);
1422 priv->scan_start = jiffies;
1423 priv->scan_pass_start = priv->scan_start;
1424
1425 queue_work(priv->workqueue, &priv->request_scan);
1426
1427 return 0;
1428}
1429
b481de9c 1430
c79dd5b5 1431static void iwl4965_set_flags_for_phymode(struct iwl_priv *priv,
8318d78a 1432 enum ieee80211_band band)
b481de9c 1433{
8318d78a 1434 if (band == IEEE80211_BAND_5GHZ) {
b481de9c
ZY		 1435 priv->staging_rxon.flags &=
1436 ~(RXON_FLG_BAND_24G_MSK | RXON_FLG_AUTO_DETECT_MSK
1437 | RXON_FLG_CCK_MSK);
1438 priv->staging_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK;
1439 } else {
508e32e1 1440 /* Copied from iwl4965_post_associate() */
b481de9c
ZY		 1441 if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_SLOT_TIME)
1442 priv->staging_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK;
1443 else
1444 priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK;
1445
1446 if (priv->iw_mode == IEEE80211_IF_TYPE_IBSS)
1447 priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK;
1448
1449 priv->staging_rxon.flags |= RXON_FLG_BAND_24G_MSK;
1450 priv->staging_rxon.flags |= RXON_FLG_AUTO_DETECT_MSK;
1451 priv->staging_rxon.flags &= ~RXON_FLG_CCK_MSK;
1452 }
1453}
1454
1455/*
01ebd063 1456 * initialize rxon structure with default values from eeprom
b481de9c 1457 */
c79dd5b5 1458static void iwl4965_connection_init_rx_config(struct iwl_priv *priv)
b481de9c 1459{
bf85ea4f 1460 const struct iwl_channel_info *ch_info;
b481de9c
ZY		 1461
1462 memset(&priv->staging_rxon, 0, sizeof(priv->staging_rxon));
1463
1464 switch (priv->iw_mode) {
1465 case IEEE80211_IF_TYPE_AP:
1466 priv->staging_rxon.dev_type = RXON_DEV_TYPE_AP;
1467 break;
1468
1469 case IEEE80211_IF_TYPE_STA:
1470 priv->staging_rxon.dev_type = RXON_DEV_TYPE_ESS;
1471 priv->staging_rxon.filter_flags = RXON_FILTER_ACCEPT_GRP_MSK;
1472 break;
1473
1474 case IEEE80211_IF_TYPE_IBSS:
1475 priv->staging_rxon.dev_type = RXON_DEV_TYPE_IBSS;
1476 priv->staging_rxon.flags = RXON_FLG_SHORT_PREAMBLE_MSK;
1477 priv->staging_rxon.filter_flags = RXON_FILTER_BCON_AWARE_MSK |
1478 RXON_FILTER_ACCEPT_GRP_MSK;
1479 break;
1480
1481 case IEEE80211_IF_TYPE_MNTR:
1482 priv->staging_rxon.dev_type = RXON_DEV_TYPE_SNIFFER;
1483 priv->staging_rxon.filter_flags = RXON_FILTER_PROMISC_MSK |
1484 RXON_FILTER_CTL2HOST_MSK | RXON_FILTER_ACCEPT_GRP_MSK;
1485 break;
69dc5d9d
TW		 1486 default:
1487 IWL_ERROR("Unsupported interface type %d\n", priv->iw_mode);
1488 break;
b481de9c
ZY		 1489 }
1490
1491#if 0
1492 /* TODO: Figure out when short_preamble would be set and cache from
1493 * that */
1494 if (!hw_to_local(priv->hw)->short_preamble)
1495 priv->staging_rxon.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK;
1496 else
1497 priv->staging_rxon.flags |= RXON_FLG_SHORT_PREAMBLE_MSK;
1498#endif
1499
8622e705 1500 ch_info = iwl_get_channel_info(priv, priv->band,
b481de9c
ZY		 1501 le16_to_cpu(priv->staging_rxon.channel));
1502
1503 if (!ch_info)
1504 ch_info = &priv->channel_info[0];
1505
1506 /*
1507 * in some case A channels are all non IBSS
1508 * in this case force B/G channel
1509 */
1510 if ((priv->iw_mode == IEEE80211_IF_TYPE_IBSS) &&
1511 !(is_channel_ibss(ch_info)))
1512 ch_info = &priv->channel_info[0];
1513
1514 priv->staging_rxon.channel = cpu_to_le16(ch_info->channel);
8318d78a 1515 priv->band = ch_info->band;
b481de9c 1516
8318d78a 1517 iwl4965_set_flags_for_phymode(priv, priv->band);
b481de9c
ZY		 1518
1519 priv->staging_rxon.ofdm_basic_rates =
1520 (IWL_OFDM_RATES_MASK >> IWL_FIRST_OFDM_RATE) & 0xFF;
1521 priv->staging_rxon.cck_basic_rates =
1522 (IWL_CCK_RATES_MASK >> IWL_FIRST_CCK_RATE) & 0xF;
1523
1524 priv->staging_rxon.flags &= ~(RXON_FLG_CHANNEL_MODE_MIXED_MSK |
1525 RXON_FLG_CHANNEL_MODE_PURE_40_MSK);
1526 memcpy(priv->staging_rxon.node_addr, priv->mac_addr, ETH_ALEN);
1527 memcpy(priv->staging_rxon.wlap_bssid_addr, priv->mac_addr, ETH_ALEN);
1528 priv->staging_rxon.ofdm_ht_single_stream_basic_rates = 0xff;
1529 priv->staging_rxon.ofdm_ht_dual_stream_basic_rates = 0xff;
c7de35cd 1530 iwl_set_rxon_chain(priv);
b481de9c
ZY		 1531}
1532
c79dd5b5 1533static int iwl4965_set_mode(struct iwl_priv *priv, int mode)
b481de9c 1534{
b481de9c 1535 if (mode == IEEE80211_IF_TYPE_IBSS) {
bf85ea4f 1536 const struct iwl_channel_info *ch_info;
b481de9c 1537
8622e705 1538 ch_info = iwl_get_channel_info(priv,
8318d78a 1539 priv->band,
b481de9c
ZY		 1540 le16_to_cpu(priv->staging_rxon.channel));
1541
1542 if (!ch_info || !is_channel_ibss(ch_info)) {
1543 IWL_ERROR("channel %d not IBSS channel\n",
1544 le16_to_cpu(priv->staging_rxon.channel));
1545 return -EINVAL;
1546 }
1547 }
1548
b481de9c
ZY		 1549 priv->iw_mode = mode;
1550
bb8c093b 1551 iwl4965_connection_init_rx_config(priv);
b481de9c
ZY		 1552 memcpy(priv->staging_rxon.node_addr, priv->mac_addr, ETH_ALEN);
1553
bf85ea4f 1554 iwlcore_clear_stations_table(priv);
b481de9c 1555
fde3571f 1556 /* dont commit rxon if rf-kill is on*/
fee1247a 1557 if (!iwl_is_ready_rf(priv))
fde3571f
MA		 1558 return -EAGAIN;
1559
1560 cancel_delayed_work(&priv->scan_check);
1561 if (iwl4965_scan_cancel_timeout(priv, 100)) {
1562 IWL_WARNING("Aborted scan still in progress after 100ms\n");
1563 IWL_DEBUG_MAC80211("leaving - scan abort failed.\n");
1564 return -EAGAIN;
1565 }
1566
bb8c093b 1567 iwl4965_commit_rxon(priv);
b481de9c
ZY		 1568
1569 return 0;
1570}
1571
c79dd5b5 1572static void iwl4965_build_tx_cmd_hwcrypto(struct iwl_priv *priv,
b481de9c 1573 struct ieee80211_tx_control *ctl,
857485c0 1574 struct iwl_cmd *cmd,
b481de9c 1575 struct sk_buff *skb_frag,
deb09c43 1576 int sta_id)
b481de9c 1577{
6def9761 1578 struct iwl_hw_key *keyinfo = &priv->stations[sta_id].keyinfo;
6974e363
EG		 1579 struct iwl_wep_key *wepkey;
1580 int keyidx = 0;
1581
1c014420 1582 BUG_ON(ctl->hw_key->hw_key_idx > 3);
b481de9c
ZY		 1583
1584 switch (keyinfo->alg) {
1585 case ALG_CCMP:
1586 cmd->cmd.tx.sec_ctl = TX_CMD_SEC_CCM;
1587 memcpy(cmd->cmd.tx.key, keyinfo->key, keyinfo->keylen);
8236e183
MS		 1588 if (ctl->flags & IEEE80211_TXCTL_AMPDU)
1589 cmd->cmd.tx.tx_flags |= TX_CMD_FLG_AGG_CCMP_MSK;
b481de9c
ZY		 1590 IWL_DEBUG_TX("tx_cmd with aes hwcrypto\n");
1591 break;
1592
1593 case ALG_TKIP:
b481de9c 1594 cmd->cmd.tx.sec_ctl = TX_CMD_SEC_TKIP;
2bc75089
EG		 1595 ieee80211_get_tkip_key(keyinfo->conf, skb_frag,
1596 IEEE80211_TKIP_P2_KEY, cmd->cmd.tx.key);
1597 IWL_DEBUG_TX("tx_cmd with tkip hwcrypto\n");
b481de9c
ZY		 1598 break;
1599
1600 case ALG_WEP:
1c014420 1601 wepkey = &priv->wep_keys[ctl->hw_key->hw_key_idx];
6974e363
EG		 1602 cmd->cmd.tx.sec_ctl = 0;
1603 if (priv->default_wep_key) {
1604 /* the WEP key was sent as static */
1c014420 1605 keyidx = ctl->hw_key->hw_key_idx;
6974e363
EG		 1606 memcpy(&cmd->cmd.tx.key[3], wepkey->key,
1607 wepkey->key_size);
1608 if (wepkey->key_size == WEP_KEY_LEN_128)
1609 cmd->cmd.tx.sec_ctl |= TX_CMD_SEC_KEY128;
1610 } else {
0211ddda
EG		 1611 /* the WEP key was sent as dynamic */
1612 keyidx = keyinfo->keyidx;
1613 memcpy(&cmd->cmd.tx.key[3], keyinfo->key,
1614 keyinfo->keylen);
1615 if (keyinfo->keylen == WEP_KEY_LEN_128)
1616 cmd->cmd.tx.sec_ctl |= TX_CMD_SEC_KEY128;
6974e363 1617 }
b481de9c 1618
6974e363
EG		 1619 cmd->cmd.tx.sec_ctl |= (TX_CMD_SEC_WEP |
1620 (keyidx & TX_CMD_SEC_MSK) << TX_CMD_SEC_SHIFT);
b481de9c
ZY		 1621
1622 IWL_DEBUG_TX("Configuring packet for WEP encryption "
6974e363 1623 "with key %d\n", keyidx);
b481de9c
ZY		 1624 break;
1625
b481de9c
ZY		 1626 default:
1627 printk(KERN_ERR "Unknown encode alg %d\n", keyinfo->alg);
1628 break;
1629 }
1630}
1631
1632/*
1633 * handle build REPLY_TX command notification.
1634 */
c79dd5b5 1635static void iwl4965_build_tx_cmd_basic(struct iwl_priv *priv,
857485c0 1636 struct iwl_cmd *cmd,
b481de9c
ZY		 1637 struct ieee80211_tx_control *ctrl,
1638 struct ieee80211_hdr *hdr,
1639 int is_unicast, u8 std_id)
1640{
1641 __le16 *qc;
1642 u16 fc = le16_to_cpu(hdr->frame_control);
1643 __le32 tx_flags = cmd->cmd.tx.tx_flags;
1644
1645 cmd->cmd.tx.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE;
1646 if (!(ctrl->flags & IEEE80211_TXCTL_NO_ACK)) {
1647 tx_flags |= TX_CMD_FLG_ACK_MSK;
1648 if ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT)
1649 tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK;
1650 if (ieee80211_is_probe_response(fc) &&
1651 !(le16_to_cpu(hdr->seq_ctrl) & 0xf))
1652 tx_flags |= TX_CMD_FLG_TSF_MSK;
1653 } else {
1654 tx_flags &= (~TX_CMD_FLG_ACK_MSK);
1655 tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK;
1656 }
1657
87e4f7df
TW		 1658 if (ieee80211_is_back_request(fc))
1659 tx_flags |= TX_CMD_FLG_ACK_MSK | TX_CMD_FLG_IMM_BA_RSP_MASK;
1660
1661
b481de9c
ZY		 1662 cmd->cmd.tx.sta_id = std_id;
1663 if (ieee80211_get_morefrag(hdr))
1664 tx_flags |= TX_CMD_FLG_MORE_FRAG_MSK;
1665
1666 qc = ieee80211_get_qos_ctrl(hdr);
1667 if (qc) {
1668 cmd->cmd.tx.tid_tspec = (u8) (le16_to_cpu(*qc) & 0xf);
1669 tx_flags &= ~TX_CMD_FLG_SEQ_CTL_MSK;
1670 } else
1671 tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK;
1672
1673 if (ctrl->flags & IEEE80211_TXCTL_USE_RTS_CTS) {
1674 tx_flags |= TX_CMD_FLG_RTS_MSK;
1675 tx_flags &= ~TX_CMD_FLG_CTS_MSK;
1676 } else if (ctrl->flags & IEEE80211_TXCTL_USE_CTS_PROTECT) {
1677 tx_flags &= ~TX_CMD_FLG_RTS_MSK;
1678 tx_flags |= TX_CMD_FLG_CTS_MSK;
1679 }
1680
1681 if ((tx_flags & TX_CMD_FLG_RTS_MSK) || (tx_flags & TX_CMD_FLG_CTS_MSK))
1682 tx_flags |= TX_CMD_FLG_FULL_TXOP_PROT_MSK;
1683
1684 tx_flags &= ~(TX_CMD_FLG_ANT_SEL_MSK);
1685 if ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT) {
1686 if ((fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_ASSOC_REQ ||
1687 (fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_REASSOC_REQ)
bc434dd2 1688 cmd->cmd.tx.timeout.pm_frame_timeout = cpu_to_le16(3);
b481de9c 1689 else
bc434dd2 1690 cmd->cmd.tx.timeout.pm_frame_timeout = cpu_to_le16(2);
ab53d8af 1691 } else {
b481de9c 1692 cmd->cmd.tx.timeout.pm_frame_timeout = 0;
ab53d8af 1693 }
b481de9c
ZY		 1694
1695 cmd->cmd.tx.driver_txop = 0;
1696 cmd->cmd.tx.tx_flags = tx_flags;
1697 cmd->cmd.tx.next_frame_len = 0;
1698}
19758bef
TW		 1699static void iwl_update_tx_stats(struct iwl_priv *priv, u16 fc, u16 len)
1700{
1701 /* 0 - mgmt, 1 - cnt, 2 - data */
1702 int idx = (fc & IEEE80211_FCTL_FTYPE) >> 2;
1703 priv->tx_stats[idx].cnt++;
1704 priv->tx_stats[idx].bytes += len;
1705}
6440adb5
CB		 1706/**
1707 * iwl4965_get_sta_id - Find station's index within station table
1708 *
1709 * If new IBSS station, create new entry in station table
1710 */
c79dd5b5 1711static int iwl4965_get_sta_id(struct iwl_priv *priv,
9fbab516 1712 struct ieee80211_hdr *hdr)
b481de9c
ZY		 1713{
1714 int sta_id;
1715 u16 fc = le16_to_cpu(hdr->frame_control);
0795af57 1716 DECLARE_MAC_BUF(mac);
b481de9c 1717
6440adb5 1718 /* If this frame is broadcast or management, use broadcast station id */
b481de9c
ZY		 1719 if (((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA) ||
1720 is_multicast_ether_addr(hdr->addr1))
5425e490 1721 return priv->hw_params.bcast_sta_id;
b481de9c
ZY		 1722
1723 switch (priv->iw_mode) {
1724
6440adb5
CB		 1725 /* If we are a client station in a BSS network, use the special
1726 * AP station entry (that's the only station we communicate with) */
b481de9c
ZY		 1727 case IEEE80211_IF_TYPE_STA:
1728 return IWL_AP_ID;
1729
1730 /* If we are an AP, then find the station, or use BCAST */
1731 case IEEE80211_IF_TYPE_AP:
947b13a7 1732 sta_id = iwl_find_station(priv, hdr->addr1);
b481de9c
ZY		 1733 if (sta_id != IWL_INVALID_STATION)
1734 return sta_id;
5425e490 1735 return priv->hw_params.bcast_sta_id;
b481de9c 1736
6440adb5
CB		 1737 /* If this frame is going out to an IBSS network, find the station,
1738 * or create a new station table entry */
b481de9c 1739 case IEEE80211_IF_TYPE_IBSS:
947b13a7 1740 sta_id = iwl_find_station(priv, hdr->addr1);
b481de9c
ZY		 1741 if (sta_id != IWL_INVALID_STATION)
1742 return sta_id;
1743
6440adb5 1744 /* Create new station table entry */
67d62035
RR		 1745 sta_id = iwl4965_add_station_flags(priv, hdr->addr1,
1746 0, CMD_ASYNC, NULL);
b481de9c
ZY		 1747
1748 if (sta_id != IWL_INVALID_STATION)
1749 return sta_id;
1750
0795af57 1751 IWL_DEBUG_DROP("Station %s not in station map. "
b481de9c 1752 "Defaulting to broadcast...\n",
0795af57 1753 print_mac(mac, hdr->addr1));
bf403db8 1754 iwl_print_hex_dump(priv, IWL_DL_DROP, (u8 *) hdr, sizeof(*hdr));
5425e490 1755 return priv->hw_params.bcast_sta_id;
b481de9c
ZY		 1756
1757 default:
01ebd063 1758 IWL_WARNING("Unknown mode of operation: %d", priv->iw_mode);
5425e490 1759 return priv->hw_params.bcast_sta_id;
b481de9c
ZY		 1760 }
1761}
1762
1763/*
1764 * start REPLY_TX command process
1765 */
c79dd5b5 1766static int iwl4965_tx_skb(struct iwl_priv *priv,
b481de9c
ZY		 1767 struct sk_buff *skb, struct ieee80211_tx_control *ctl)
1768{
1769 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
1053d35f 1770 struct iwl_tfd_frame *tfd;
b481de9c
ZY		 1771 u32 *control_flags;
1772 int txq_id = ctl->queue;
16466903 1773 struct iwl_tx_queue *txq = NULL;
443cfd45 1774 struct iwl_queue *q = NULL;
b481de9c
ZY		 1775 dma_addr_t phys_addr;
1776 dma_addr_t txcmd_phys;
87e4f7df 1777 dma_addr_t scratch_phys;
857485c0 1778 struct iwl_cmd *out_cmd = NULL;
b481de9c
ZY		 1779 u16 len, idx, len_org;
1780 u8 id, hdr_len, unicast;
1781 u8 sta_id;
1782 u16 seq_number = 0;
1783 u16 fc;
1784 __le16 *qc;
1785 u8 wait_write_ptr = 0;
1786 unsigned long flags;
1787 int rc;
1788
1789 spin_lock_irqsave(&priv->lock, flags);
fee1247a 1790 if (iwl_is_rfkill(priv)) {
b481de9c
ZY		 1791 IWL_DEBUG_DROP("Dropping - RF KILL\n");
1792 goto drop_unlock;
1793 }
1794
32bfd35d
JB		 1795 if (!priv->vif) {
1796 IWL_DEBUG_DROP("Dropping - !priv->vif\n");
b481de9c
ZY		 1797 goto drop_unlock;
1798 }
1799
8318d78a 1800 if ((ctl->tx_rate->hw_value & 0xFF) == IWL_INVALID_RATE) {
b481de9c
ZY		 1801 IWL_ERROR("ERROR: No TX rate available.\n");
1802 goto drop_unlock;
1803 }
1804
1805 unicast = !is_multicast_ether_addr(hdr->addr1);
1806 id = 0;
1807
1808 fc = le16_to_cpu(hdr->frame_control);
1809
0a6857e7 1810#ifdef CONFIG_IWLWIFI_DEBUG
b481de9c
ZY		 1811 if (ieee80211_is_auth(fc))
1812 IWL_DEBUG_TX("Sending AUTH frame\n");
1813 else if (ieee80211_is_assoc_request(fc))
1814 IWL_DEBUG_TX("Sending ASSOC frame\n");
1815 else if (ieee80211_is_reassoc_request(fc))
1816 IWL_DEBUG_TX("Sending REASSOC frame\n");
1817#endif
1818
7878a5a4 1819 /* drop all data frame if we are not associated */
76f3915b 1820 if (((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA) &&
3109ece1 1821 (!iwl_is_associated(priv) ||
a6477249 1822 ((priv->iw_mode == IEEE80211_IF_TYPE_STA) && !priv->assoc_id) ||
76f3915b 1823 !priv->assoc_station_added)) {
3109ece1 1824 IWL_DEBUG_DROP("Dropping - !iwl_is_associated\n");
b481de9c
ZY		 1825 goto drop_unlock;
1826 }
1827
1828 spin_unlock_irqrestore(&priv->lock, flags);
1829
1830 hdr_len = ieee80211_get_hdrlen(fc);
6440adb5
CB		 1831
1832 /* Find (or create) index into station table for destination station */
bb8c093b 1833 sta_id = iwl4965_get_sta_id(priv, hdr);
b481de9c 1834 if (sta_id == IWL_INVALID_STATION) {
0795af57
JP		 1835 DECLARE_MAC_BUF(mac);
1836
1837 IWL_DEBUG_DROP("Dropping - INVALID STATION: %s\n",
1838 print_mac(mac, hdr->addr1));
b481de9c
ZY		 1839 goto drop;
1840 }
1841
07bc28ed 1842 IWL_DEBUG_TX("station Id %d\n", sta_id);
b481de9c
ZY		 1843
1844 qc = ieee80211_get_qos_ctrl(hdr);
1845 if (qc) {
1846 u8 tid = (u8)(le16_to_cpu(*qc) & 0xf);
1847 seq_number = priv->stations[sta_id].tid[tid].seq_number &
1848 IEEE80211_SCTL_SEQ;
1849 hdr->seq_ctrl = cpu_to_le16(seq_number) |
1850 (hdr->seq_ctrl &
1851 __constant_cpu_to_le16(IEEE80211_SCTL_FRAG));
1852 seq_number += 0x10;
c8b0e6e1 1853#ifdef CONFIG_IWL4965_HT
b481de9c 1854 /* aggregation is on for this <sta,tid> */
fe01b477 1855 if (ctl->flags & IEEE80211_TXCTL_AMPDU)
b481de9c 1856 txq_id = priv->stations[sta_id].tid[tid].agg.txq_id;
fe01b477 1857 priv->stations[sta_id].tid[tid].tfds_in_queue++;
c8b0e6e1 1858#endif /* CONFIG_IWL4965_HT */
b481de9c 1859 }
6440adb5
CB		 1860
1861 /* Descriptor for chosen Tx queue */
b481de9c
ZY		 1862 txq = &priv->txq[txq_id];
1863 q = &txq->q;
1864
1865 spin_lock_irqsave(&priv->lock, flags);
1866
6440adb5 1867 /* Set up first empty TFD within this queue's circular TFD buffer */
fc4b6853 1868 tfd = &txq->bd[q->write_ptr];
b481de9c
ZY		 1869 memset(tfd, 0, sizeof(*tfd));
1870 control_flags = (u32 *) tfd;
fc4b6853 1871 idx = get_cmd_index(q, q->write_ptr, 0);
b481de9c 1872
6440adb5 1873 /* Set up driver data for this TFD */
8567c63e 1874 memset(&(txq->txb[q->write_ptr]), 0, sizeof(struct iwl_tx_info));
fc4b6853
TW		 1875 txq->txb[q->write_ptr].skb[0] = skb;
1876 memcpy(&(txq->txb[q->write_ptr].status.control),
b481de9c 1877 ctl, sizeof(struct ieee80211_tx_control));
6440adb5
CB		 1878
1879 /* Set up first empty entry in queue's array of Tx/cmd buffers */
b481de9c
ZY		 1880 out_cmd = &txq->cmd[idx];
1881 memset(&out_cmd->hdr, 0, sizeof(out_cmd->hdr));
1882 memset(&out_cmd->cmd.tx, 0, sizeof(out_cmd->cmd.tx));
6440adb5
CB		 1883
1884 /*
1885 * Set up the Tx-command (not MAC!) header.
1886 * Store the chosen Tx queue and TFD index within the sequence field;
1887 * after Tx, uCode's Tx response will return this value so driver can
1888 * locate the frame within the tx queue and do post-tx processing.
1889 */
b481de9c
ZY		 1890 out_cmd->hdr.cmd = REPLY_TX;
1891 out_cmd->hdr.sequence = cpu_to_le16((u16)(QUEUE_TO_SEQ(txq_id) |
fc4b6853 1892 INDEX_TO_SEQ(q->write_ptr)));
6440adb5
CB		 1893
1894 /* Copy MAC header from skb into command buffer */
b481de9c
ZY		 1895 memcpy(out_cmd->cmd.tx.hdr, hdr, hdr_len);
1896
6440adb5
CB		 1897 /*
1898 * Use the first empty entry in this queue's command buffer array
1899 * to contain the Tx command and MAC header concatenated together
1900 * (payload data will be in another buffer).
1901 * Size of this varies, due to varying MAC header length.
1902 * If end is not dword aligned, we'll have 2 extra bytes at the end
1903 * of the MAC header (device reads on dword boundaries).
1904 * We'll tell device about this padding later.
1905 */
5425e490 1906 len = priv->hw_params.tx_cmd_len +
857485c0 1907 sizeof(struct iwl_cmd_header) + hdr_len;
b481de9c
ZY		 1908
1909 len_org = len;
1910 len = (len + 3) & ~3;
1911
1912 if (len_org != len)
1913 len_org = 1;
1914 else
1915 len_org = 0;
1916
6440adb5
CB		 1917 /* Physical address of this Tx command's header (not MAC header!),
1918 * within command buffer array. */
857485c0
TW		 1919 txcmd_phys = txq->dma_addr_cmd + sizeof(struct iwl_cmd) * idx +
1920 offsetof(struct iwl_cmd, hdr);
b481de9c 1921
6440adb5
CB		 1922 /* Add buffer containing Tx command and MAC(!) header to TFD's
1923 * first entry */
bb8c093b 1924 iwl4965_hw_txq_attach_buf_to_tfd(priv, tfd, txcmd_phys, len);
b481de9c
ZY		 1925
1926 if (!(ctl->flags & IEEE80211_TXCTL_DO_NOT_ENCRYPT))
deb09c43 1927 iwl4965_build_tx_cmd_hwcrypto(priv, ctl, out_cmd, skb, sta_id);
b481de9c 1928
6440adb5
CB		 1929 /* Set up TFD's 2nd entry to point directly to remainder of skb,
1930 * if any (802.11 null frames have no payload). */
b481de9c
ZY		 1931 len = skb->len - hdr_len;
1932 if (len) {
1933 phys_addr = pci_map_single(priv->pci_dev, skb->data + hdr_len,
1934 len, PCI_DMA_TODEVICE);
bb8c093b 1935 iwl4965_hw_txq_attach_buf_to_tfd(priv, tfd, phys_addr, len);
b481de9c
ZY		 1936 }
1937
6440adb5 1938 /* Tell 4965 about any 2-byte padding after MAC header */
b481de9c
ZY		 1939 if (len_org)
1940 out_cmd->cmd.tx.tx_flags |= TX_CMD_FLG_MH_PAD_MSK;
1941
6440adb5 1942 /* Total # bytes to be transmitted */
b481de9c
ZY		 1943 len = (u16)skb->len;
1944 out_cmd->cmd.tx.len = cpu_to_le16(len);
1945
1946 /* TODO need this for burst mode later on */
bb8c093b 1947 iwl4965_build_tx_cmd_basic(priv, out_cmd, ctl, hdr, unicast, sta_id);
b481de9c
ZY		 1948
1949 /* set is_hcca to 0; it probably will never be implemented */
bb8c093b 1950 iwl4965_hw_build_tx_cmd_rate(priv, out_cmd, ctl, hdr, sta_id, 0);
b481de9c 1951
19758bef
TW		 1952 iwl_update_tx_stats(priv, fc, len);
1953
857485c0 1954 scratch_phys = txcmd_phys + sizeof(struct iwl_cmd_header) +
87e4f7df
TW		 1955 offsetof(struct iwl4965_tx_cmd, scratch);
1956 out_cmd->cmd.tx.dram_lsb_ptr = cpu_to_le32(scratch_phys);
1957 out_cmd->cmd.tx.dram_msb_ptr = iwl_get_dma_hi_address(scratch_phys);
1958
b481de9c
ZY		 1959 if (!ieee80211_get_morefrag(hdr)) {
1960 txq->need_update = 1;
1961 if (qc) {
1962 u8 tid = (u8)(le16_to_cpu(*qc) & 0xf);
1963 priv->stations[sta_id].tid[tid].seq_number = seq_number;
1964 }
1965 } else {
1966 wait_write_ptr = 1;
1967 txq->need_update = 0;
1968 }
1969
bf403db8 1970 iwl_print_hex_dump(priv, IWL_DL_TX, out_cmd->cmd.payload,
b481de9c
ZY		 1971 sizeof(out_cmd->cmd.tx));
1972
bf403db8 1973 iwl_print_hex_dump(priv, IWL_DL_TX, (u8 *)out_cmd->cmd.tx.hdr,
b481de9c
ZY		 1974 ieee80211_get_hdrlen(fc));
1975
6440adb5 1976 /* Set up entry for this TFD in Tx byte-count array */
e2a722eb 1977 priv->cfg->ops->lib->txq_update_byte_cnt_tbl(priv, txq, len);
b481de9c 1978
6440adb5 1979 /* Tell device the write index *just past* this latest filled TFD */
c54b679d 1980 q->write_ptr = iwl_queue_inc_wrap(q->write_ptr, q->n_bd);
bb8c093b 1981 rc = iwl4965_tx_queue_update_write_ptr(priv, txq);
b481de9c
ZY		 1982 spin_unlock_irqrestore(&priv->lock, flags);
1983
1984 if (rc)
1985 return rc;
1986
443cfd45 1987 if ((iwl_queue_space(q) < q->high_mark)
b481de9c
ZY		 1988 && priv->mac80211_registered) {
1989 if (wait_write_ptr) {
1990 spin_lock_irqsave(&priv->lock, flags);
1991 txq->need_update = 1;
bb8c093b 1992 iwl4965_tx_queue_update_write_ptr(priv, txq);
b481de9c
ZY		 1993 spin_unlock_irqrestore(&priv->lock, flags);
1994 }
1995
1996 ieee80211_stop_queue(priv->hw, ctl->queue);
1997 }
1998
1999 return 0;
2000
2001drop_unlock:
2002 spin_unlock_irqrestore(&priv->lock, flags);
2003drop:
2004 return -1;
2005}
2006
c79dd5b5 2007static void iwl4965_set_rate(struct iwl_priv *priv)
b481de9c 2008{
8318d78a 2009 const struct ieee80211_supported_band *hw = NULL;
b481de9c
ZY		 2010 struct ieee80211_rate *rate;
2011 int i;
2012
d1141dfb 2013 hw = iwl_get_hw_mode(priv, priv->band);
c4ba9621
SA		 2014 if (!hw) {
2015 IWL_ERROR("Failed to set rate: unable to get hw mode\n");
2016 return;
2017 }
b481de9c
ZY		 2018
2019 priv->active_rate = 0;
2020 priv->active_rate_basic = 0;
2021
8318d78a
JB		 2022 for (i = 0; i < hw->n_bitrates; i++) {
2023 rate = &(hw->bitrates[i]);
2024 if (rate->hw_value < IWL_RATE_COUNT)
2025 priv->active_rate |= (1 << rate->hw_value);
b481de9c
ZY		 2026 }
2027
2028 IWL_DEBUG_RATE("Set active_rate = %0x, active_rate_basic = %0x\n",
2029 priv->active_rate, priv->active_rate_basic);
2030
2031 /*
2032 * If a basic rate is configured, then use it (adding IWL_RATE_1M_MASK)
2033 * otherwise set it to the default of all CCK rates and 6, 12, 24 for
2034 * OFDM
2035 */
2036 if (priv->active_rate_basic & IWL_CCK_BASIC_RATES_MASK)
2037 priv->staging_rxon.cck_basic_rates =
2038 ((priv->active_rate_basic &
2039 IWL_CCK_RATES_MASK) >> IWL_FIRST_CCK_RATE) & 0xF;
2040 else
2041 priv->staging_rxon.cck_basic_rates =
2042 (IWL_CCK_BASIC_RATES_MASK >> IWL_FIRST_CCK_RATE) & 0xF;
2043
2044 if (priv->active_rate_basic & IWL_OFDM_BASIC_RATES_MASK)
2045 priv->staging_rxon.ofdm_basic_rates =
2046 ((priv->active_rate_basic &
2047 (IWL_OFDM_BASIC_RATES_MASK | IWL_RATE_6M_MASK)) >>
2048 IWL_FIRST_OFDM_RATE) & 0xFF;
2049 else
2050 priv->staging_rxon.ofdm_basic_rates =
2051 (IWL_OFDM_BASIC_RATES_MASK >> IWL_FIRST_OFDM_RATE) & 0xFF;
2052}
2053
ad97edd2 2054void iwl4965_radio_kill_sw(struct iwl_priv *priv, int disable_radio)
b481de9c
ZY		 2055{
2056 unsigned long flags;
2057
2058 if (!!disable_radio == test_bit(STATUS_RF_KILL_SW, &priv->status))
2059 return;
2060
2061 IWL_DEBUG_RF_KILL("Manual SW RF KILL set to: RADIO %s\n",
2062 disable_radio ? "OFF" : "ON");
2063
2064 if (disable_radio) {
bb8c093b 2065 iwl4965_scan_cancel(priv);
b481de9c
ZY		 2066 /* FIXME: This is a workaround for AP */
2067 if (priv->iw_mode != IEEE80211_IF_TYPE_AP) {
2068 spin_lock_irqsave(&priv->lock, flags);
3395f6e9 2069 iwl_write32(priv, CSR_UCODE_DRV_GP1_SET,
b481de9c
ZY		 2070 CSR_UCODE_SW_BIT_RFKILL);
2071 spin_unlock_irqrestore(&priv->lock, flags);
ad97edd2 2072 /* call the host command only if no hw rf-kill set */
59003835
MA		 2073 if (!test_bit(STATUS_RF_KILL_HW, &priv->status) &&
2074 iwl_is_ready(priv))
ad97edd2
MA		 2075 iwl4965_send_card_state(priv,
2076 CARD_STATE_CMD_DISABLE,
2077 0);
b481de9c 2078 set_bit(STATUS_RF_KILL_SW, &priv->status);
ad97edd2
MA		 2079
2080 /* make sure mac80211 stop sending Tx frame */
2081 if (priv->mac80211_registered)
2082 ieee80211_stop_queues(priv->hw);
b481de9c
ZY		 2083 }
2084 return;
2085 }
2086
2087 spin_lock_irqsave(&priv->lock, flags);
3395f6e9 2088 iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
b481de9c
ZY		 2089
2090 clear_bit(STATUS_RF_KILL_SW, &priv->status);
2091 spin_unlock_irqrestore(&priv->lock, flags);
2092
2093 /* wake up ucode */
2094 msleep(10);
2095
2096 spin_lock_irqsave(&priv->lock, flags);
3395f6e9
TW		 2097 iwl_read32(priv, CSR_UCODE_DRV_GP1);
2098 if (!iwl_grab_nic_access(priv))
2099 iwl_release_nic_access(priv);
b481de9c
ZY		 2100 spin_unlock_irqrestore(&priv->lock, flags);
2101
2102 if (test_bit(STATUS_RF_KILL_HW, &priv->status)) {
2103 IWL_DEBUG_RF_KILL("Can not turn radio back on - "
2104 "disabled by HW switch\n");
2105 return;
2106 }
2107
2108 queue_work(priv->workqueue, &priv->restart);
2109 return;
2110}
2111
b481de9c
ZY		 2112#define IWL_PACKET_RETRY_TIME HZ
2113
c79dd5b5 2114int iwl4965_is_duplicate_packet(struct iwl_priv *priv, struct ieee80211_hdr *header)
b481de9c
ZY		 2115{
2116 u16 sc = le16_to_cpu(header->seq_ctrl);
2117 u16 seq = (sc & IEEE80211_SCTL_SEQ) >> 4;
2118 u16 frag = sc & IEEE80211_SCTL_FRAG;
2119 u16 *last_seq, *last_frag;
2120 unsigned long *last_time;
2121
2122 switch (priv->iw_mode) {
2123 case IEEE80211_IF_TYPE_IBSS:{
2124 struct list_head *p;
bb8c093b 2125 struct iwl4965_ibss_seq *entry = NULL;
b481de9c
ZY		 2126 u8 *mac = header->addr2;
2127 int index = mac[5] & (IWL_IBSS_MAC_HASH_SIZE - 1);
2128
2129 __list_for_each(p, &priv->ibss_mac_hash[index]) {
bb8c093b 2130 entry = list_entry(p, struct iwl4965_ibss_seq, list);
b481de9c
ZY		 2131 if (!compare_ether_addr(entry->mac, mac))
2132 break;
2133 }
2134 if (p == &priv->ibss_mac_hash[index]) {
2135 entry = kzalloc(sizeof(*entry), GFP_ATOMIC);
2136 if (!entry) {
bc434dd2 2137 IWL_ERROR("Cannot malloc new mac entry\n");
b481de9c
ZY		 2138 return 0;
2139 }
2140 memcpy(entry->mac, mac, ETH_ALEN);
2141 entry->seq_num = seq;
2142 entry->frag_num = frag;
2143 entry->packet_time = jiffies;
bc434dd2 2144 list_add(&entry->list, &priv->ibss_mac_hash[index]);
b481de9c
ZY		 2145 return 0;
2146 }
2147 last_seq = &entry->seq_num;
2148 last_frag = &entry->frag_num;
2149 last_time = &entry->packet_time;
2150 break;
2151 }
2152 case IEEE80211_IF_TYPE_STA:
2153 last_seq = &priv->last_seq_num;
2154 last_frag = &priv->last_frag_num;
2155 last_time = &priv->last_packet_time;
2156 break;
2157 default:
2158 return 0;
2159 }
2160 if ((*last_seq == seq) &&
2161 time_after(*last_time + IWL_PACKET_RETRY_TIME, jiffies)) {
2162 if (*last_frag == frag)
2163 goto drop;
2164 if (*last_frag + 1 != frag)
2165 /* out-of-order fragment */
2166 goto drop;
2167 } else
2168 *last_seq = seq;
2169
2170 *last_frag = frag;
2171 *last_time = jiffies;
2172 return 0;
2173
2174 drop:
2175 return 1;
2176}
2177
c8b0e6e1 2178#ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
b481de9c
ZY		 2179
2180#include "iwl-spectrum.h"
2181
2182#define BEACON_TIME_MASK_LOW 0x00FFFFFF
2183#define BEACON_TIME_MASK_HIGH 0xFF000000
2184#define TIME_UNIT 1024
2185
2186/*
2187 * extended beacon time format
2188 * time in usec will be changed into a 32-bit value in 8:24 format
2189 * the high 1 byte is the beacon counts
2190 * the lower 3 bytes is the time in usec within one beacon interval
2191 */
2192
bb8c093b 2193static u32 iwl4965_usecs_to_beacons(u32 usec, u32 beacon_interval)
b481de9c
ZY		 2194{
2195 u32 quot;
2196 u32 rem;
2197 u32 interval = beacon_interval * 1024;
2198
2199 if (!interval || !usec)
2200 return 0;
2201
2202 quot = (usec / interval) & (BEACON_TIME_MASK_HIGH >> 24);
2203 rem = (usec % interval) & BEACON_TIME_MASK_LOW;
2204
2205 return (quot << 24) + rem;
2206}
2207
2208/* base is usually what we get from ucode with each received frame,
2209 * the same as HW timer counter counting down
2210 */
2211
bb8c093b 2212static __le32 iwl4965_add_beacon_time(u32 base, u32 addon, u32 beacon_interval)
b481de9c
ZY		 2213{
2214 u32 base_low = base & BEACON_TIME_MASK_LOW;
2215 u32 addon_low = addon & BEACON_TIME_MASK_LOW;
2216 u32 interval = beacon_interval * TIME_UNIT;
2217 u32 res = (base & BEACON_TIME_MASK_HIGH) +
2218 (addon & BEACON_TIME_MASK_HIGH);
2219
2220 if (base_low > addon_low)
2221 res += base_low - addon_low;
2222 else if (base_low < addon_low) {
2223 res += interval + base_low - addon_low;
2224 res += (1 << 24);
2225 } else
2226 res += (1 << 24);
2227
2228 return cpu_to_le32(res);
2229}
2230
c79dd5b5 2231static int iwl4965_get_measurement(struct iwl_priv *priv,
b481de9c
ZY		 2232 struct ieee80211_measurement_params *params,
2233 u8 type)
2234{
bb8c093b 2235 struct iwl4965_spectrum_cmd spectrum;
db11d634 2236 struct iwl_rx_packet *res;
857485c0 2237 struct iwl_host_cmd cmd = {
b481de9c
ZY		 2238 .id = REPLY_SPECTRUM_MEASUREMENT_CMD,
2239 .data = (void *)&spectrum,
2240 .meta.flags = CMD_WANT_SKB,
2241 };
2242 u32 add_time = le64_to_cpu(params->start_time);
2243 int rc;
2244 int spectrum_resp_status;
2245 int duration = le16_to_cpu(params->duration);
2246
3109ece1 2247 if (iwl_is_associated(priv))
b481de9c 2248 add_time =
bb8c093b 2249 iwl4965_usecs_to_beacons(
b481de9c
ZY		 2250 le64_to_cpu(params->start_time) - priv->last_tsf,
2251 le16_to_cpu(priv->rxon_timing.beacon_interval));
2252
2253 memset(&spectrum, 0, sizeof(spectrum));
2254
2255 spectrum.channel_count = cpu_to_le16(1);
2256 spectrum.flags =
2257 RXON_FLG_TSF2HOST_MSK | RXON_FLG_ANT_A_MSK | RXON_FLG_DIS_DIV_MSK;
2258 spectrum.filter_flags = MEASUREMENT_FILTER_FLAG;
2259 cmd.len = sizeof(spectrum);
2260 spectrum.len = cpu_to_le16(cmd.len - sizeof(spectrum.len));
2261
3109ece1 2262 if (iwl_is_associated(priv))
b481de9c 2263 spectrum.start_time =
bb8c093b 2264 iwl4965_add_beacon_time(priv->last_beacon_time,
b481de9c
ZY		 2265 add_time,
2266 le16_to_cpu(priv->rxon_timing.beacon_interval));
2267 else
2268 spectrum.start_time = 0;
2269
2270 spectrum.channels[0].duration = cpu_to_le32(duration * TIME_UNIT);
2271 spectrum.channels[0].channel = params->channel;
2272 spectrum.channels[0].type = type;
2273 if (priv->active_rxon.flags & RXON_FLG_BAND_24G_MSK)
2274 spectrum.flags |= RXON_FLG_BAND_24G_MSK |
2275 RXON_FLG_AUTO_DETECT_MSK | RXON_FLG_TGG_PROTECT_MSK;
2276
857485c0 2277 rc = iwl_send_cmd_sync(priv, &cmd);
b481de9c
ZY		 2278 if (rc)
2279 return rc;
2280
db11d634 2281 res = (struct iwl_rx_packet *)cmd.meta.u.skb->data;
b481de9c
ZY		 2282 if (res->hdr.flags & IWL_CMD_FAILED_MSK) {
2283 IWL_ERROR("Bad return from REPLY_RX_ON_ASSOC command\n");
2284 rc = -EIO;
2285 }
2286
2287 spectrum_resp_status = le16_to_cpu(res->u.spectrum.status);
2288 switch (spectrum_resp_status) {
2289 case 0: /* Command will be handled */
2290 if (res->u.spectrum.id != 0xff) {
2291 IWL_DEBUG_INFO
2292 ("Replaced existing measurement: %d\n",
2293 res->u.spectrum.id);
2294 priv->measurement_status &= ~MEASUREMENT_READY;
2295 }
2296 priv->measurement_status |= MEASUREMENT_ACTIVE;
2297 rc = 0;
2298 break;
2299
2300 case 1: /* Command will not be handled */
2301 rc = -EAGAIN;
2302 break;
2303 }
2304
2305 dev_kfree_skb_any(cmd.meta.u.skb);
2306
2307 return rc;
2308}
2309#endif
2310
c79dd5b5 2311static void iwl4965_txstatus_to_ieee(struct iwl_priv *priv,
8567c63e 2312 struct iwl_tx_info *tx_sta)
b481de9c
ZY		 2313{
2314
2315 tx_sta->status.ack_signal = 0;
2316 tx_sta->status.excessive_retries = 0;
b481de9c
ZY		 2317
2318 if (in_interrupt())
2319 ieee80211_tx_status_irqsafe(priv->hw,
2320 tx_sta->skb[0], &(tx_sta->status));
2321 else
2322 ieee80211_tx_status(priv->hw,
2323 tx_sta->skb[0], &(tx_sta->status));
2324
2325 tx_sta->skb[0] = NULL;
2326}
2327
2328/**
6440adb5 2329 * iwl4965_tx_queue_reclaim - Reclaim Tx queue entries already Tx'd
b481de9c 2330 *
6440adb5
CB		 2331 * When FW advances 'R' index, all entries between old and new 'R' index
2332 * need to be reclaimed. As result, some free space forms. If there is
2333 * enough free space (> low mark), wake the stack that feeds us.
b481de9c 2334 */
c79dd5b5 2335int iwl4965_tx_queue_reclaim(struct iwl_priv *priv, int txq_id, int index)
b481de9c 2336{
16466903 2337 struct iwl_tx_queue *txq = &priv->txq[txq_id];
443cfd45 2338 struct iwl_queue *q = &txq->q;
b481de9c
ZY		 2339 int nfreed = 0;
2340
443cfd45 2341 if ((index >= q->n_bd) || (iwl_queue_used(q, index) == 0)) {
b481de9c
ZY		 2342 IWL_ERROR("Read index for DMA queue txq id (%d), index %d, "
2343 "is out of range [0-%d] %d %d.\n", txq_id,
fc4b6853 2344 index, q->n_bd, q->write_ptr, q->read_ptr);
b481de9c
ZY		 2345 return 0;
2346 }
2347
c54b679d 2348 for (index = iwl_queue_inc_wrap(index, q->n_bd);
fc4b6853 2349 q->read_ptr != index;
c54b679d 2350 q->read_ptr = iwl_queue_inc_wrap(q->read_ptr, q->n_bd)) {
b481de9c 2351 if (txq_id != IWL_CMD_QUEUE_NUM) {
bb8c093b 2352 iwl4965_txstatus_to_ieee(priv,
fc4b6853 2353 &(txq->txb[txq->q.read_ptr]));
1053d35f 2354 iwl_hw_txq_free_tfd(priv, txq);
b481de9c
ZY		 2355 } else if (nfreed > 1) {
2356 IWL_ERROR("HCMD skipped: index (%d) %d %d\n", index,
fc4b6853 2357 q->write_ptr, q->read_ptr);
b481de9c
ZY		 2358 queue_work(priv->workqueue, &priv->restart);
2359 }
2360 nfreed++;
2361 }
2362
b481de9c
ZY		 2363 return nfreed;
2364}
2365
bb8c093b 2366static int iwl4965_is_tx_success(u32 status)
b481de9c
ZY		 2367{
2368 status &= TX_STATUS_MSK;
2369 return (status == TX_STATUS_SUCCESS)
2370 || (status == TX_STATUS_DIRECT_DONE);
2371}
2372
2373/******************************************************************************
2374 *
2375 * Generic RX handler implementations
2376 *
2377 ******************************************************************************/
c8b0e6e1 2378#ifdef CONFIG_IWL4965_HT
b481de9c 2379
c79dd5b5 2380static inline int iwl4965_get_ra_sta_id(struct iwl_priv *priv,
b481de9c
ZY		 2381 struct ieee80211_hdr *hdr)
2382{
2383 if (priv->iw_mode == IEEE80211_IF_TYPE_STA)
2384 return IWL_AP_ID;
2385 else {
2386 u8 *da = ieee80211_get_DA(hdr);
947b13a7 2387 return iwl_find_station(priv, da);
b481de9c
ZY		 2388 }
2389}
2390
bb8c093b 2391static struct ieee80211_hdr *iwl4965_tx_queue_get_hdr(
c79dd5b5 2392 struct iwl_priv *priv, int txq_id, int idx)
b481de9c
ZY		 2393{
2394 if (priv->txq[txq_id].txb[idx].skb[0])
2395 return (struct ieee80211_hdr *)priv->txq[txq_id].
2396 txb[idx].skb[0]->data;
2397 return NULL;
2398}
2399
bb8c093b 2400static inline u32 iwl4965_get_scd_ssn(struct iwl4965_tx_resp *tx_resp)
b481de9c
ZY		 2401{
2402 __le32 *scd_ssn = (__le32 *)((u32 *)&tx_resp->status +
2403 tx_resp->frame_count);
2404 return le32_to_cpu(*scd_ssn) & MAX_SN;
2405
2406}
6440adb5
CB		 2407
2408/**
2409 * iwl4965_tx_status_reply_tx - Handle Tx rspnse for frames in aggregation queue
2410 */
c79dd5b5 2411static int iwl4965_tx_status_reply_tx(struct iwl_priv *priv,
6def9761 2412 struct iwl_ht_agg *agg,
fe01b477 2413 struct iwl4965_tx_resp_agg *tx_resp,
b481de9c
ZY		 2414 u16 start_idx)
2415{
fe01b477
RR		 2416 u16 status;
2417 struct agg_tx_status *frame_status = &tx_resp->status;
b481de9c
ZY		 2418 struct ieee80211_tx_status *tx_status = NULL;
2419 struct ieee80211_hdr *hdr = NULL;
2420 int i, sh;
2421 int txq_id, idx;
2422 u16 seq;
2423
2424 if (agg->wait_for_ba)
6440adb5 2425 IWL_DEBUG_TX_REPLY("got tx response w/o block-ack\n");
b481de9c
ZY		 2426
2427 agg->frame_count = tx_resp->frame_count;
2428 agg->start_idx = start_idx;
2429 agg->rate_n_flags = le32_to_cpu(tx_resp->rate_n_flags);
fe01b477 2430 agg->bitmap = 0;
b481de9c 2431
6440adb5 2432 /* # frames attempted by Tx command */
b481de9c 2433 if (agg->frame_count == 1) {
6440adb5 2434 /* Only one frame was attempted; no block-ack will arrive */
fe01b477
RR		 2435 status = le16_to_cpu(frame_status[0].status);
2436 seq = le16_to_cpu(frame_status[0].sequence);
2437 idx = SEQ_TO_INDEX(seq);
2438 txq_id = SEQ_TO_QUEUE(seq);
b481de9c 2439
b481de9c 2440 /* FIXME: code repetition */
fe01b477
RR		 2441 IWL_DEBUG_TX_REPLY("FrameCnt = %d, StartIdx=%d idx=%d\n",
2442 agg->frame_count, agg->start_idx, idx);
b481de9c 2443
fe01b477 2444 tx_status = &(priv->txq[txq_id].txb[idx].status);
b481de9c 2445 tx_status->retry_count = tx_resp->failure_frame;
fe01b477 2446 tx_status->control.flags &= ~IEEE80211_TXCTL_AMPDU;
bb8c093b 2447 tx_status->flags = iwl4965_is_tx_success(status)?
b481de9c 2448 IEEE80211_TX_STATUS_ACK : 0;
4c424e4c
RR		 2449 iwl4965_hwrate_to_tx_control(priv,
2450 le32_to_cpu(tx_resp->rate_n_flags),
2451 &tx_status->control);
b481de9c
ZY		 2452 /* FIXME: code repetition end */
2453
2454 IWL_DEBUG_TX_REPLY("1 Frame 0x%x failure :%d\n",
2455 status & 0xff, tx_resp->failure_frame);
2456 IWL_DEBUG_TX_REPLY("Rate Info rate_n_flags=%x\n",
bb8c093b 2457 iwl4965_hw_get_rate_n_flags(tx_resp->rate_n_flags));
b481de9c
ZY		 2458
2459 agg->wait_for_ba = 0;
2460 } else {
6440adb5 2461 /* Two or more frames were attempted; expect block-ack */
b481de9c
ZY		 2462 u64 bitmap = 0;
2463 int start = agg->start_idx;
2464
6440adb5 2465 /* Construct bit-map of pending frames within Tx window */
b481de9c
ZY		 2466 for (i = 0; i < agg->frame_count; i++) {
2467 u16 sc;
fe01b477
RR		 2468 status = le16_to_cpu(frame_status[i].status);
2469 seq = le16_to_cpu(frame_status[i].sequence);
b481de9c
ZY		 2470 idx = SEQ_TO_INDEX(seq);
2471 txq_id = SEQ_TO_QUEUE(seq);
2472
2473 if (status & (AGG_TX_STATE_FEW_BYTES_MSK |
2474 AGG_TX_STATE_ABORT_MSK))
2475 continue;
2476
2477 IWL_DEBUG_TX_REPLY("FrameCnt = %d, txq_id=%d idx=%d\n",
2478 agg->frame_count, txq_id, idx);
2479
bb8c093b 2480 hdr = iwl4965_tx_queue_get_hdr(priv, txq_id, idx);
b481de9c
ZY		 2481
2482 sc = le16_to_cpu(hdr->seq_ctrl);
2483 if (idx != (SEQ_TO_SN(sc) & 0xff)) {
2484 IWL_ERROR("BUG_ON idx doesn't match seq control"
2485 " idx=%d, seq_idx=%d, seq=%d\n",
2486 idx, SEQ_TO_SN(sc),
2487 hdr->seq_ctrl);
2488 return -1;
2489 }
2490
2491 IWL_DEBUG_TX_REPLY("AGG Frame i=%d idx %d seq=%d\n",
2492 i, idx, SEQ_TO_SN(sc));
2493
2494 sh = idx - start;
2495 if (sh > 64) {
2496 sh = (start - idx) + 0xff;
2497 bitmap = bitmap << sh;
2498 sh = 0;
2499 start = idx;
2500 } else if (sh < -64)
2501 sh = 0xff - (start - idx);
2502 else if (sh < 0) {
2503 sh = start - idx;
2504 start = idx;
2505 bitmap = bitmap << sh;
2506 sh = 0;
2507 }
2508 bitmap |= (1 << sh);
2509 IWL_DEBUG_TX_REPLY("start=%d bitmap=0x%x\n",
2510 start, (u32)(bitmap & 0xFFFFFFFF));
2511 }
2512
fe01b477 2513 agg->bitmap = bitmap;
b481de9c
ZY		 2514 agg->start_idx = start;
2515 agg->rate_n_flags = le32_to_cpu(tx_resp->rate_n_flags);
fe01b477 2516 IWL_DEBUG_TX_REPLY("Frames %d start_idx=%d bitmap=0x%llx\n",
b481de9c 2517 agg->frame_count, agg->start_idx,
06501d29 2518 (unsigned long long)agg->bitmap);
b481de9c
ZY		 2519
2520 if (bitmap)
2521 agg->wait_for_ba = 1;
2522 }
2523 return 0;
2524}
2525#endif
b481de9c 2526
6440adb5
CB		 2527/**
2528 * iwl4965_rx_reply_tx - Handle standard (non-aggregation) Tx response
2529 */
c79dd5b5 2530static void iwl4965_rx_reply_tx(struct iwl_priv *priv,
a55360e4 2531 struct iwl_rx_mem_buffer *rxb)
b481de9c 2532{
db11d634 2533 struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
b481de9c
ZY		 2534 u16 sequence = le16_to_cpu(pkt->hdr.sequence);
2535 int txq_id = SEQ_TO_QUEUE(sequence);
2536 int index = SEQ_TO_INDEX(sequence);
16466903 2537 struct iwl_tx_queue *txq = &priv->txq[txq_id];
b481de9c 2538 struct ieee80211_tx_status *tx_status;
bb8c093b 2539 struct iwl4965_tx_resp *tx_resp = (void *)&pkt->u.raw[0];
b481de9c 2540 u32 status = le32_to_cpu(tx_resp->status);
c8b0e6e1 2541#ifdef CONFIG_IWL4965_HT
fe01b477
RR		 2542 int tid = MAX_TID_COUNT, sta_id = IWL_INVALID_STATION;
2543 struct ieee80211_hdr *hdr;
2544 __le16 *qc;
b481de9c
ZY		 2545#endif
2546
443cfd45 2547 if ((index >= txq->q.n_bd) || (iwl_queue_used(&txq->q, index) == 0)) {
b481de9c
ZY		 2548 IWL_ERROR("Read index for DMA queue txq_id (%d) index %d "
2549 "is out of range [0-%d] %d %d\n", txq_id,
fc4b6853
TW		 2550 index, txq->q.n_bd, txq->q.write_ptr,
2551 txq->q.read_ptr);
b481de9c
ZY		 2552 return;
2553 }
2554
c8b0e6e1 2555#ifdef CONFIG_IWL4965_HT
fe01b477
RR		 2556 hdr = iwl4965_tx_queue_get_hdr(priv, txq_id, index);
2557 qc = ieee80211_get_qos_ctrl(hdr);
2558
2559 if (qc)
2560 tid = le16_to_cpu(*qc) & 0xf;
2561
2562 sta_id = iwl4965_get_ra_sta_id(priv, hdr);
2563 if (txq->sched_retry && unlikely(sta_id == IWL_INVALID_STATION)) {
2564 IWL_ERROR("Station not known\n");
2565 return;
2566 }
2567
b481de9c 2568 if (txq->sched_retry) {
bb8c093b 2569 const u32 scd_ssn = iwl4965_get_scd_ssn(tx_resp);
6def9761 2570 struct iwl_ht_agg *agg = NULL;
b481de9c 2571
fe01b477 2572 if (!qc)
b481de9c 2573 return;
b481de9c
ZY		 2574
2575 agg = &priv->stations[sta_id].tid[tid].agg;
2576
fe01b477
RR		 2577 iwl4965_tx_status_reply_tx(priv, agg,
2578 (struct iwl4965_tx_resp_agg *)tx_resp, index);
b481de9c
ZY		 2579
2580 if ((tx_resp->frame_count == 1) &&
bb8c093b 2581 !iwl4965_is_tx_success(status)) {
b481de9c
ZY		 2582 /* TODO: send BAR */
2583 }
2584
fe01b477 2585 if (txq->q.read_ptr != (scd_ssn & 0xff)) {
0d0b2c1c 2586 int freed, ampdu_q;
c54b679d 2587 index = iwl_queue_dec_wrap(scd_ssn & 0xff, txq->q.n_bd);
b481de9c
ZY		 2588 IWL_DEBUG_TX_REPLY("Retry scheduler reclaim scd_ssn "
2589 "%d index %d\n", scd_ssn , index);
fe01b477
RR		 2590 freed = iwl4965_tx_queue_reclaim(priv, txq_id, index);
2591 priv->stations[sta_id].tid[tid].tfds_in_queue -= freed;
2592
443cfd45 2593 if (iwl_queue_space(&txq->q) > txq->q.low_mark &&
fe01b477 2594 txq_id >= 0 && priv->mac80211_registered &&
0d0b2c1c
RR		 2595 agg->state != IWL_EMPTYING_HW_QUEUE_DELBA) {
2596 /* calculate mac80211 ampdu sw queue to wake */
2597 ampdu_q = txq_id - IWL_BACK_QUEUE_FIRST_ID +
2598 priv->hw->queues;
2599 if (agg->state == IWL_AGG_OFF)
2600 ieee80211_wake_queue(priv->hw, txq_id);
2601 else
2602 ieee80211_wake_queue(priv->hw, ampdu_q);
2603 }
fe01b477 2604 iwl4965_check_empty_hw_queue(priv, sta_id, tid, txq_id);
b481de9c
ZY		 2605 }
2606 } else {
c8b0e6e1 2607#endif /* CONFIG_IWL4965_HT */
fc4b6853 2608 tx_status = &(txq->txb[txq->q.read_ptr].status);
b481de9c
ZY		 2609
2610 tx_status->retry_count = tx_resp->failure_frame;
b481de9c 2611 tx_status->flags =
bb8c093b 2612 iwl4965_is_tx_success(status) ? IEEE80211_TX_STATUS_ACK : 0;
4c424e4c
RR		 2613 iwl4965_hwrate_to_tx_control(priv, le32_to_cpu(tx_resp->rate_n_flags),
2614 &tx_status->control);
b481de9c 2615
b481de9c 2616 IWL_DEBUG_TX("Tx queue %d Status %s (0x%08x) rate_n_flags 0x%x "
bb8c093b 2617 "retries %d\n", txq_id, iwl4965_get_tx_fail_reason(status),
b481de9c
ZY		 2618 status, le32_to_cpu(tx_resp->rate_n_flags),
2619 tx_resp->failure_frame);
2620
2621 IWL_DEBUG_TX_REPLY("Tx queue reclaim %d\n", index);
47c5196e 2622#ifdef CONFIG_IWL4965_HT
fe01b477
RR		 2623 if (index != -1) {
2624 int freed = iwl4965_tx_queue_reclaim(priv, txq_id, index);
fe01b477
RR		 2625 if (tid != MAX_TID_COUNT)
2626 priv->stations[sta_id].tid[tid].tfds_in_queue -= freed;
443cfd45 2627 if (iwl_queue_space(&txq->q) > txq->q.low_mark &&
0d0b2c1c 2628 (txq_id >= 0) && priv->mac80211_registered)
fe01b477
RR		 2629 ieee80211_wake_queue(priv->hw, txq_id);
2630 if (tid != MAX_TID_COUNT)
2631 iwl4965_check_empty_hw_queue(priv, sta_id, tid, txq_id);
fe01b477 2632 }
b481de9c 2633 }
c8b0e6e1 2634#endif /* CONFIG_IWL4965_HT */
b481de9c
ZY		 2635
2636 if (iwl_check_bits(status, TX_ABORT_REQUIRED_MSK))
2637 IWL_ERROR("TODO: Implement Tx ABORT REQUIRED!!!\n");
2638}
2639
2640
c79dd5b5 2641static void iwl4965_rx_reply_alive(struct iwl_priv *priv,
a55360e4 2642 struct iwl_rx_mem_buffer *rxb)
b481de9c 2643{
db11d634 2644 struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
bb8c093b 2645 struct iwl4965_alive_resp *palive;
b481de9c
ZY		 2646 struct delayed_work *pwork;
2647
2648 palive = &pkt->u.alive_frame;
2649
2650 IWL_DEBUG_INFO("Alive ucode status 0x%08X revision "
2651 "0x%01X 0x%01X\n",
2652 palive->is_valid, palive->ver_type,
2653 palive->ver_subtype);
2654
2655 if (palive->ver_subtype == INITIALIZE_SUBTYPE) {
2656 IWL_DEBUG_INFO("Initialization Alive received.\n");
2657 memcpy(&priv->card_alive_init,
2658 &pkt->u.alive_frame,
bb8c093b 2659 sizeof(struct iwl4965_init_alive_resp));
b481de9c
ZY		 2660 pwork = &priv->init_alive_start;
2661 } else {
2662 IWL_DEBUG_INFO("Runtime Alive received.\n");
2663 memcpy(&priv->card_alive, &pkt->u.alive_frame,
bb8c093b 2664 sizeof(struct iwl4965_alive_resp));
b481de9c
ZY		 2665 pwork = &priv->alive_start;
2666 }
2667
2668 /* We delay the ALIVE response by 5ms to
2669 * give the HW RF Kill time to activate... */
2670 if (palive->is_valid == UCODE_VALID_OK)
2671 queue_delayed_work(priv->workqueue, pwork,
2672 msecs_to_jiffies(5));
2673 else
2674 IWL_WARNING("uCode did not respond OK.\n");
2675}
2676
c79dd5b5 2677static void iwl4965_rx_reply_add_sta(struct iwl_priv *priv,
a55360e4 2678 struct iwl_rx_mem_buffer *rxb)
b481de9c 2679{
db11d634 2680 struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
b481de9c
ZY		 2681
2682 IWL_DEBUG_RX("Received REPLY_ADD_STA: 0x%02X\n", pkt->u.status);
2683 return;
2684}
2685
c79dd5b5 2686static void iwl4965_rx_reply_error(struct iwl_priv *priv,
a55360e4 2687 struct iwl_rx_mem_buffer *rxb)
b481de9c 2688{
db11d634 2689 struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
b481de9c
ZY		 2690
2691 IWL_ERROR("Error Reply type 0x%08X cmd %s (0x%02X) "
2692 "seq 0x%04X ser 0x%08X\n",
2693 le32_to_cpu(pkt->u.err_resp.error_type),
2694 get_cmd_string(pkt->u.err_resp.cmd_id),
2695 pkt->u.err_resp.cmd_id,
2696 le16_to_cpu(pkt->u.err_resp.bad_cmd_seq_num),
2697 le32_to_cpu(pkt->u.err_resp.error_info));
2698}
2699
2700#define TX_STATUS_ENTRY(x) case TX_STATUS_FAIL_ ## x: return #x
2701
a55360e4 2702static void iwl4965_rx_csa(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb)
b481de9c 2703{
db11d634 2704 struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
c1adf9fb 2705 struct iwl_rxon_cmd *rxon = (void *)&priv->active_rxon;
bb8c093b 2706 struct iwl4965_csa_notification *csa = &(pkt->u.csa_notif);
b481de9c
ZY		 2707 IWL_DEBUG_11H("CSA notif: channel %d, status %d\n",
2708 le16_to_cpu(csa->channel), le32_to_cpu(csa->status));
2709 rxon->channel = csa->channel;
2710 priv->staging_rxon.channel = csa->channel;
2711}
2712
c79dd5b5 2713static void iwl4965_rx_spectrum_measure_notif(struct iwl_priv *priv,
a55360e4 2714 struct iwl_rx_mem_buffer *rxb)
b481de9c 2715{
c8b0e6e1 2716#ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
db11d634 2717 struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
bb8c093b 2718 struct iwl4965_spectrum_notification *report = &(pkt->u.spectrum_notif);
b481de9c
ZY		 2719
2720 if (!report->state) {
f3d67999
EK		 2721 IWL_DEBUG(IWL_DL_11H,
2722 "Spectrum Measure Notification: Start\n");
b481de9c
ZY		 2723 return;
2724 }
2725
2726 memcpy(&priv->measure_report, report, sizeof(*report));
2727 priv->measurement_status |= MEASUREMENT_READY;
2728#endif
2729}
2730
c79dd5b5 2731static void iwl4965_rx_pm_sleep_notif(struct iwl_priv *priv,
a55360e4 2732 struct iwl_rx_mem_buffer *rxb)
b481de9c 2733{
0a6857e7 2734#ifdef CONFIG_IWLWIFI_DEBUG
db11d634 2735 struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
bb8c093b 2736 struct iwl4965_sleep_notification *sleep = &(pkt->u.sleep_notif);
b481de9c
ZY		 2737 IWL_DEBUG_RX("sleep mode: %d, src: %d\n",
2738 sleep->pm_sleep_mode, sleep->pm_wakeup_src);
2739#endif
2740}
2741
c79dd5b5 2742static void iwl4965_rx_pm_debug_statistics_notif(struct iwl_priv *priv,
a55360e4 2743 struct iwl_rx_mem_buffer *rxb)
b481de9c 2744{
db11d634 2745 struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
b481de9c
ZY		 2746 IWL_DEBUG_RADIO("Dumping %d bytes of unhandled "
2747 "notification for %s:\n",
2748 le32_to_cpu(pkt->len), get_cmd_string(pkt->hdr.cmd));
bf403db8 2749 iwl_print_hex_dump(priv, IWL_DL_RADIO, pkt->u.raw, le32_to_cpu(pkt->len));
b481de9c
ZY		 2750}
2751
bb8c093b 2752static void iwl4965_bg_beacon_update(struct work_struct *work)
b481de9c 2753{
c79dd5b5
TW		 2754 struct iwl_priv *priv =
2755 container_of(work, struct iwl_priv, beacon_update);
b481de9c
ZY		 2756 struct sk_buff *beacon;
2757
2758 /* Pull updated AP beacon from mac80211. will fail if not in AP mode */
32bfd35d 2759 beacon = ieee80211_beacon_get(priv->hw, priv->vif, NULL);
b481de9c
ZY		 2760
2761 if (!beacon) {
2762 IWL_ERROR("update beacon failed\n");
2763 return;
2764 }
2765
2766 mutex_lock(&priv->mutex);
2767 /* new beacon skb is allocated every time; dispose previous.*/
2768 if (priv->ibss_beacon)
2769 dev_kfree_skb(priv->ibss_beacon);
2770
2771 priv->ibss_beacon = beacon;
2772 mutex_unlock(&priv->mutex);
2773
bb8c093b 2774 iwl4965_send_beacon_cmd(priv);
b481de9c
ZY		 2775}
2776
c79dd5b5 2777static void iwl4965_rx_beacon_notif(struct iwl_priv *priv,
a55360e4 2778 struct iwl_rx_mem_buffer *rxb)
b481de9c 2779{
0a6857e7 2780#ifdef CONFIG_IWLWIFI_DEBUG
db11d634 2781 struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
bb8c093b
CH		 2782 struct iwl4965_beacon_notif *beacon = &(pkt->u.beacon_status);
2783 u8 rate = iwl4965_hw_get_rate(beacon->beacon_notify_hdr.rate_n_flags);
b481de9c
ZY		 2784
2785 IWL_DEBUG_RX("beacon status %x retries %d iss %d "
2786 "tsf %d %d rate %d\n",
2787 le32_to_cpu(beacon->beacon_notify_hdr.status) & TX_STATUS_MSK,
2788 beacon->beacon_notify_hdr.failure_frame,
2789 le32_to_cpu(beacon->ibss_mgr_status),
2790 le32_to_cpu(beacon->high_tsf),
2791 le32_to_cpu(beacon->low_tsf), rate);
2792#endif
2793
2794 if ((priv->iw_mode == IEEE80211_IF_TYPE_AP) &&
2795 (!test_bit(STATUS_EXIT_PENDING, &priv->status)))
2796 queue_work(priv->workqueue, &priv->beacon_update);
2797}
2798
2799/* Service response to REPLY_SCAN_CMD (0x80) */
c79dd5b5 2800static void iwl4965_rx_reply_scan(struct iwl_priv *priv,
a55360e4 2801 struct iwl_rx_mem_buffer *rxb)
b481de9c 2802{
0a6857e7 2803#ifdef CONFIG_IWLWIFI_DEBUG
db11d634 2804 struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
bb8c093b
CH		 2805 struct iwl4965_scanreq_notification *notif =
2806 (struct iwl4965_scanreq_notification *)pkt->u.raw;
b481de9c
ZY		 2807
2808 IWL_DEBUG_RX("Scan request status = 0x%x\n", notif->status);
2809#endif
2810}
2811
2812/* Service SCAN_START_NOTIFICATION (0x82) */
c79dd5b5 2813static void iwl4965_rx_scan_start_notif(struct iwl_priv *priv,
a55360e4 2814 struct iwl_rx_mem_buffer *rxb)
b481de9c 2815{
db11d634 2816 struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
bb8c093b
CH		 2817 struct iwl4965_scanstart_notification *notif =
2818 (struct iwl4965_scanstart_notification *)pkt->u.raw;
b481de9c
ZY		 2819 priv->scan_start_tsf = le32_to_cpu(notif->tsf_low);
2820 IWL_DEBUG_SCAN("Scan start: "
2821 "%d [802.11%s] "
2822 "(TSF: 0x%08X:%08X) - %d (beacon timer %u)\n",
2823 notif->channel,
2824 notif->band ? "bg" : "a",
2825 notif->tsf_high,
2826 notif->tsf_low, notif->status, notif->beacon_timer);
2827}
2828
2829/* Service SCAN_RESULTS_NOTIFICATION (0x83) */
c79dd5b5 2830static void iwl4965_rx_scan_results_notif(struct iwl_priv *priv,
a55360e4 2831 struct iwl_rx_mem_buffer *rxb)
b481de9c 2832{
db11d634 2833 struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
bb8c093b
CH		 2834 struct iwl4965_scanresults_notification *notif =
2835 (struct iwl4965_scanresults_notification *)pkt->u.raw;
b481de9c
ZY		 2836
2837 IWL_DEBUG_SCAN("Scan ch.res: "
2838 "%d [802.11%s] "
2839 "(TSF: 0x%08X:%08X) - %d "
2840 "elapsed=%lu usec (%dms since last)\n",
2841 notif->channel,
2842 notif->band ? "bg" : "a",
2843 le32_to_cpu(notif->tsf_high),
2844 le32_to_cpu(notif->tsf_low),
2845 le32_to_cpu(notif->statistics[0]),
2846 le32_to_cpu(notif->tsf_low) - priv->scan_start_tsf,
2847 jiffies_to_msecs(elapsed_jiffies
2848 (priv->last_scan_jiffies, jiffies)));
2849
2850 priv->last_scan_jiffies = jiffies;
7878a5a4 2851 priv->next_scan_jiffies = 0;
b481de9c
ZY		 2852}
2853
2854/* Service SCAN_COMPLETE_NOTIFICATION (0x84) */
c79dd5b5 2855static void iwl4965_rx_scan_complete_notif(struct iwl_priv *priv,
a55360e4 2856 struct iwl_rx_mem_buffer *rxb)
b481de9c 2857{
db11d634 2858 struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
bb8c093b 2859 struct iwl4965_scancomplete_notification *scan_notif = (void *)pkt->u.raw;
b481de9c
ZY		 2860
2861 IWL_DEBUG_SCAN("Scan complete: %d channels (TSF 0x%08X:%08X) - %d\n",
2862 scan_notif->scanned_channels,
2863 scan_notif->tsf_low,
2864 scan_notif->tsf_high, scan_notif->status);
2865
2866 /* The HW is no longer scanning */
2867 clear_bit(STATUS_SCAN_HW, &priv->status);
2868
2869 /* The scan completion notification came in, so kill that timer... */
2870 cancel_delayed_work(&priv->scan_check);
2871
2872 IWL_DEBUG_INFO("Scan pass on %sGHz took %dms\n",
2873 (priv->scan_bands == 2) ? "2.4" : "5.2",
2874 jiffies_to_msecs(elapsed_jiffies
2875 (priv->scan_pass_start, jiffies)));
2876
2877 /* Remove this scanned band from the list
2878 * of pending bands to scan */
2879 priv->scan_bands--;
2880
2881 /* If a request to abort was given, or the scan did not succeed
2882 * then we reset the scan state machine and terminate,
2883 * re-queuing another scan if one has been requested */
2884 if (test_bit(STATUS_SCAN_ABORTING, &priv->status)) {
2885 IWL_DEBUG_INFO("Aborted scan completed.\n");
2886 clear_bit(STATUS_SCAN_ABORTING, &priv->status);
2887 } else {
2888 /* If there are more bands on this scan pass reschedule */
2889 if (priv->scan_bands > 0)
2890 goto reschedule;
2891 }
2892
2893 priv->last_scan_jiffies = jiffies;
7878a5a4 2894 priv->next_scan_jiffies = 0;
b481de9c
ZY		 2895 IWL_DEBUG_INFO("Setting scan to off\n");
2896
2897 clear_bit(STATUS_SCANNING, &priv->status);
2898
2899 IWL_DEBUG_INFO("Scan took %dms\n",
2900 jiffies_to_msecs(elapsed_jiffies(priv->scan_start, jiffies)));
2901
2902 queue_work(priv->workqueue, &priv->scan_completed);
2903
2904 return;
2905
2906reschedule:
2907 priv->scan_pass_start = jiffies;
2908 queue_work(priv->workqueue, &priv->request_scan);
2909}
2910
2911/* Handle notification from uCode that card's power state is changing
2912 * due to software, hardware, or critical temperature RFKILL */
c79dd5b5 2913static void iwl4965_rx_card_state_notif(struct iwl_priv *priv,
a55360e4 2914 struct iwl_rx_mem_buffer *rxb)
b481de9c 2915{
db11d634 2916 struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
b481de9c
ZY		 2917 u32 flags = le32_to_cpu(pkt->u.card_state_notif.flags);
2918 unsigned long status = priv->status;
2919
2920 IWL_DEBUG_RF_KILL("Card state received: HW:%s SW:%s\n",
2921 (flags & HW_CARD_DISABLED) ? "Kill" : "On",
2922 (flags & SW_CARD_DISABLED) ? "Kill" : "On");
2923
2924 if (flags & (SW_CARD_DISABLED | HW_CARD_DISABLED |
2925 RF_CARD_DISABLED)) {
2926
3395f6e9 2927 iwl_write32(priv, CSR_UCODE_DRV_GP1_SET,
b481de9c
ZY		 2928 CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED);
2929
3395f6e9
TW		 2930 if (!iwl_grab_nic_access(priv)) {
2931 iwl_write_direct32(
b481de9c
ZY		 2932 priv, HBUS_TARG_MBX_C,
2933 HBUS_TARG_MBX_C_REG_BIT_CMD_BLOCKED);
2934
3395f6e9 2935 iwl_release_nic_access(priv);
b481de9c
ZY		 2936 }
2937
2938 if (!(flags & RXON_CARD_DISABLED)) {
3395f6e9 2939 iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR,
b481de9c 2940 CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED);
3395f6e9
TW		 2941 if (!iwl_grab_nic_access(priv)) {
2942 iwl_write_direct32(
b481de9c
ZY		 2943 priv, HBUS_TARG_MBX_C,
2944 HBUS_TARG_MBX_C_REG_BIT_CMD_BLOCKED);
2945
3395f6e9 2946 iwl_release_nic_access(priv);
b481de9c
ZY		 2947 }
2948 }
2949
2950 if (flags & RF_CARD_DISABLED) {
3395f6e9 2951 iwl_write32(priv, CSR_UCODE_DRV_GP1_SET,
b481de9c 2952 CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT);
3395f6e9
TW		 2953 iwl_read32(priv, CSR_UCODE_DRV_GP1);
2954 if (!iwl_grab_nic_access(priv))
2955 iwl_release_nic_access(priv);
b481de9c
ZY		 2956 }
2957 }
2958
2959 if (flags & HW_CARD_DISABLED)
2960 set_bit(STATUS_RF_KILL_HW, &priv->status);
2961 else
2962 clear_bit(STATUS_RF_KILL_HW, &priv->status);
2963
2964
2965 if (flags & SW_CARD_DISABLED)
2966 set_bit(STATUS_RF_KILL_SW, &priv->status);
2967 else
2968 clear_bit(STATUS_RF_KILL_SW, &priv->status);
2969
2970 if (!(flags & RXON_CARD_DISABLED))
bb8c093b 2971 iwl4965_scan_cancel(priv);
b481de9c
ZY		 2972
2973 if ((test_bit(STATUS_RF_KILL_HW, &status) !=
2974 test_bit(STATUS_RF_KILL_HW, &priv->status)) ||
2975 (test_bit(STATUS_RF_KILL_SW, &status) !=
2976 test_bit(STATUS_RF_KILL_SW, &priv->status)))
2977 queue_work(priv->workqueue, &priv->rf_kill);
2978 else
2979 wake_up_interruptible(&priv->wait_command_queue);
2980}
2981
2982/**
bb8c093b 2983 * iwl4965_setup_rx_handlers - Initialize Rx handler callbacks
b481de9c
ZY		 2984 *
2985 * Setup the RX handlers for each of the reply types sent from the uCode
2986 * to the host.
2987 *
2988 * This function chains into the hardware specific files for them to setup
2989 * any hardware specific handlers as well.
2990 */
c79dd5b5 2991static void iwl4965_setup_rx_handlers(struct iwl_priv *priv)
b481de9c 2992{
bb8c093b
CH		 2993 priv->rx_handlers[REPLY_ALIVE] = iwl4965_rx_reply_alive;
2994 priv->rx_handlers[REPLY_ADD_STA] = iwl4965_rx_reply_add_sta;
2995 priv->rx_handlers[REPLY_ERROR] = iwl4965_rx_reply_error;
2996 priv->rx_handlers[CHANNEL_SWITCH_NOTIFICATION] = iwl4965_rx_csa;
b481de9c 2997 priv->rx_handlers[SPECTRUM_MEASURE_NOTIFICATION] =
bb8c093b
CH		 2998 iwl4965_rx_spectrum_measure_notif;
2999 priv->rx_handlers[PM_SLEEP_NOTIFICATION] = iwl4965_rx_pm_sleep_notif;
b481de9c 3000 priv->rx_handlers[PM_DEBUG_STATISTIC_NOTIFIC] =
bb8c093b
CH		 3001 iwl4965_rx_pm_debug_statistics_notif;
3002 priv->rx_handlers[BEACON_NOTIFICATION] = iwl4965_rx_beacon_notif;
b481de9c 3003
9fbab516
BC		 3004 /*
3005 * The same handler is used for both the REPLY to a discrete
3006 * statistics request from the host as well as for the periodic
3007 * statistics notifications (after received beacons) from the uCode.
b481de9c 3008 */
bb8c093b
CH		 3009 priv->rx_handlers[REPLY_STATISTICS_CMD] = iwl4965_hw_rx_statistics;
3010 priv->rx_handlers[STATISTICS_NOTIFICATION] = iwl4965_hw_rx_statistics;
b481de9c 3011
bb8c093b
CH		 3012 priv->rx_handlers[REPLY_SCAN_CMD] = iwl4965_rx_reply_scan;
3013 priv->rx_handlers[SCAN_START_NOTIFICATION] = iwl4965_rx_scan_start_notif;
b481de9c 3014 priv->rx_handlers[SCAN_RESULTS_NOTIFICATION] =
bb8c093b 3015 iwl4965_rx_scan_results_notif;
b481de9c 3016 priv->rx_handlers[SCAN_COMPLETE_NOTIFICATION] =
bb8c093b
CH		 3017 iwl4965_rx_scan_complete_notif;
3018 priv->rx_handlers[CARD_STATE_NOTIFICATION] = iwl4965_rx_card_state_notif;
3019 priv->rx_handlers[REPLY_TX] = iwl4965_rx_reply_tx;
b481de9c 3020
9fbab516 3021 /* Set up hardware specific Rx handlers */
d4789efe 3022 priv->cfg->ops->lib->rx_handler_setup(priv);
b481de9c
ZY		 3023}
3024
3025/**
bb8c093b 3026 * iwl4965_tx_cmd_complete - Pull unused buffers off the queue and reclaim them
b481de9c
ZY		 3027 * @rxb: Rx buffer to reclaim
3028 *
3029 * If an Rx buffer has an async callback associated with it the callback
3030 * will be executed. The attached skb (if present) will only be freed
3031 * if the callback returns 1
3032 */
c79dd5b5 3033static void iwl4965_tx_cmd_complete(struct iwl_priv *priv,
a55360e4 3034 struct iwl_rx_mem_buffer *rxb)
b481de9c 3035{
db11d634 3036 struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
b481de9c
ZY		 3037 u16 sequence = le16_to_cpu(pkt->hdr.sequence);
3038 int txq_id = SEQ_TO_QUEUE(sequence);
3039 int index = SEQ_TO_INDEX(sequence);
3040 int huge = sequence & SEQ_HUGE_FRAME;
3041 int cmd_index;
857485c0 3042 struct iwl_cmd *cmd;
b481de9c
ZY		 3043
3044 /* If a Tx command is being handled and it isn't in the actual
3045 * command queue then there a command routing bug has been introduced
3046 * in the queue management code. */
3047 if (txq_id != IWL_CMD_QUEUE_NUM)
3048 IWL_ERROR("Error wrong command queue %d command id 0x%X\n",
3049 txq_id, pkt->hdr.cmd);
3050 BUG_ON(txq_id != IWL_CMD_QUEUE_NUM);
3051
3052 cmd_index = get_cmd_index(&priv->txq[IWL_CMD_QUEUE_NUM].q, index, huge);
3053 cmd = &priv->txq[IWL_CMD_QUEUE_NUM].cmd[cmd_index];
3054
3055 /* Input error checking is done when commands are added to queue. */
3056 if (cmd->meta.flags & CMD_WANT_SKB) {
3057 cmd->meta.source->u.skb = rxb->skb;
3058 rxb->skb = NULL;
3059 } else if (cmd->meta.u.callback &&
3060 !cmd->meta.u.callback(priv, cmd, rxb->skb))
3061 rxb->skb = NULL;
3062
bb8c093b 3063 iwl4965_tx_queue_reclaim(priv, txq_id, index);
b481de9c
ZY		 3064
3065 if (!(cmd->meta.flags & CMD_ASYNC)) {
3066 clear_bit(STATUS_HCMD_ACTIVE, &priv->status);
3067 wake_up_interruptible(&priv->wait_command_queue);
3068 }
3069}
3070
5c0eef96
MA		 3071/*
3072 * this should be called while priv->lock is locked
3073*/
a55360e4 3074static void __iwl_rx_replenish(struct iwl_priv *priv)
b481de9c 3075{
a55360e4
TW		 3076 iwl_rx_allocate(priv);
3077 iwl_rx_queue_restock(priv);
b481de9c
ZY		 3078}
3079
b481de9c
ZY		 3080
3081/**
a55360e4 3082 * iwl_rx_handle - Main entry function for receiving responses from uCode
b481de9c
ZY		 3083 *
3084 * Uses the priv->rx_handlers callback function array to invoke
3085 * the appropriate handlers, including command responses,
3086 * frame-received notifications, and other notifications.
3087 */
a55360e4 3088void iwl_rx_handle(struct iwl_priv *priv)
b481de9c 3089{
a55360e4 3090 struct iwl_rx_mem_buffer *rxb;
db11d634 3091 struct iwl_rx_packet *pkt;
a55360e4 3092 struct iwl_rx_queue *rxq = &priv->rxq;
b481de9c
ZY		 3093 u32 r, i;
3094 int reclaim;
3095 unsigned long flags;
5c0eef96 3096 u8 fill_rx = 0;
d68ab680 3097 u32 count = 8;
b481de9c 3098
6440adb5
CB		 3099 /* uCode's read index (stored in shared DRAM) indicates the last Rx
3100 * buffer that the driver may process (last buffer filled by ucode). */
d67f5489 3101 r = priv->cfg->ops->lib->shared_mem_rx_idx(priv);
b481de9c
ZY		 3102 i = rxq->read;
3103
3104 /* Rx interrupt, but nothing sent from uCode */
3105 if (i == r)
f3d67999 3106 IWL_DEBUG(IWL_DL_RX, "r = %d, i = %d\n", r, i);
b481de9c 3107
a55360e4 3108 if (iwl_rx_queue_space(rxq) > (RX_QUEUE_SIZE / 2))
5c0eef96
MA		 3109 fill_rx = 1;
3110
b481de9c
ZY		 3111 while (i != r) {
3112 rxb = rxq->queue[i];
3113
9fbab516 3114 /* If an RXB doesn't have a Rx queue slot associated with it,
b481de9c
ZY		 3115 * then a bug has been introduced in the queue refilling
3116 * routines -- catch it here */
3117 BUG_ON(rxb == NULL);
3118
3119 rxq->queue[i] = NULL;
3120
3121 pci_dma_sync_single_for_cpu(priv->pci_dev, rxb->dma_addr,
5425e490 3122 priv->hw_params.rx_buf_size,
b481de9c 3123 PCI_DMA_FROMDEVICE);
db11d634 3124 pkt = (struct iwl_rx_packet *)rxb->skb->data;
b481de9c
ZY		 3125
3126 /* Reclaim a command buffer only if this packet is a response
3127 * to a (driver-originated) command.
3128 * If the packet (e.g. Rx frame) originated from uCode,
3129 * there is no command buffer to reclaim.
3130 * Ucode should set SEQ_RX_FRAME bit if ucode-originated,
3131 * but apparently a few don't get set; catch them here. */
3132 reclaim = !(pkt->hdr.sequence & SEQ_RX_FRAME) &&
3133 (pkt->hdr.cmd != REPLY_RX_PHY_CMD) &&
857485c0 3134 (pkt->hdr.cmd != REPLY_RX) &&
cfe01709 3135 (pkt->hdr.cmd != REPLY_COMPRESSED_BA) &&
b481de9c
ZY		 3136 (pkt->hdr.cmd != STATISTICS_NOTIFICATION) &&
3137 (pkt->hdr.cmd != REPLY_TX);
3138
3139 /* Based on type of command response or notification,
3140 * handle those that need handling via function in
bb8c093b 3141 * rx_handlers table. See iwl4965_setup_rx_handlers() */
b481de9c 3142 if (priv->rx_handlers[pkt->hdr.cmd]) {
f3d67999
EK		 3143 IWL_DEBUG(IWL_DL_RX, "r = %d, i = %d, %s, 0x%02x\n", r,
3144 i, get_cmd_string(pkt->hdr.cmd), pkt->hdr.cmd);
b481de9c
ZY		 3145 priv->rx_handlers[pkt->hdr.cmd] (priv, rxb);
3146 } else {
3147 /* No handling needed */
f3d67999 3148 IWL_DEBUG(IWL_DL_RX,
b481de9c
ZY		 3149 "r %d i %d No handler needed for %s, 0x%02x\n",
3150 r, i, get_cmd_string(pkt->hdr.cmd),
3151 pkt->hdr.cmd);
3152 }
3153
3154 if (reclaim) {
9fbab516 3155 /* Invoke any callbacks, transfer the skb to caller, and
857485c0 3156 * fire off the (possibly) blocking iwl_send_cmd()
b481de9c
ZY		 3157 * as we reclaim the driver command queue */
3158 if (rxb && rxb->skb)
bb8c093b 3159 iwl4965_tx_cmd_complete(priv, rxb);
b481de9c
ZY		 3160 else
3161 IWL_WARNING("Claim null rxb?\n");
3162 }
3163
3164 /* For now we just don't re-use anything. We can tweak this
3165 * later to try and re-use notification packets and SKBs that
3166 * fail to Rx correctly */
3167 if (rxb->skb != NULL) {
3168 priv->alloc_rxb_skb--;
3169 dev_kfree_skb_any(rxb->skb);
3170 rxb->skb = NULL;
3171 }
3172
3173 pci_unmap_single(priv->pci_dev, rxb->dma_addr,
5425e490 3174 priv->hw_params.rx_buf_size,
9ee1ba47 3175 PCI_DMA_FROMDEVICE);
b481de9c
ZY		 3176 spin_lock_irqsave(&rxq->lock, flags);
3177 list_add_tail(&rxb->list, &priv->rxq.rx_used);
3178 spin_unlock_irqrestore(&rxq->lock, flags);
3179 i = (i + 1) & RX_QUEUE_MASK;
5c0eef96
MA		 3180 /* If there are a lot of unused frames,
3181 * restock the Rx queue so ucode wont assert. */
3182 if (fill_rx) {
3183 count++;
3184 if (count >= 8) {
3185 priv->rxq.read = i;
a55360e4 3186 __iwl_rx_replenish(priv);
5c0eef96
MA		 3187 count = 0;
3188 }
3189 }
b481de9c
ZY		 3190 }
3191
3192 /* Backtrack one entry */
3193 priv->rxq.read = i;
a55360e4
TW		 3194 iwl_rx_queue_restock(priv);
3195}
3196/* Convert linear signal-to-noise ratio into dB */
3197static u8 ratio2dB[100] = {
3198/* 0 1 2 3 4 5 6 7 8 9 */
3199 0, 0, 6, 10, 12, 14, 16, 17, 18, 19, /* 00 - 09 */
3200 20, 21, 22, 22, 23, 23, 24, 25, 26, 26, /* 10 - 19 */
3201 26, 26, 26, 27, 27, 28, 28, 28, 29, 29, /* 20 - 29 */
3202 29, 30, 30, 30, 31, 31, 31, 31, 32, 32, /* 30 - 39 */
3203 32, 32, 32, 33, 33, 33, 33, 33, 34, 34, /* 40 - 49 */
3204 34, 34, 34, 34, 35, 35, 35, 35, 35, 35, /* 50 - 59 */
3205 36, 36, 36, 36, 36, 36, 36, 37, 37, 37, /* 60 - 69 */
3206 37, 37, 37, 37, 37, 38, 38, 38, 38, 38, /* 70 - 79 */
3207 38, 38, 38, 38, 38, 39, 39, 39, 39, 39, /* 80 - 89 */
3208 39, 39, 39, 39, 39, 40, 40, 40, 40, 40 /* 90 - 99 */
3209};
3210
3211/* Calculates a relative dB value from a ratio of linear
3212 * (i.e. not dB) signal levels.
3213 * Conversion assumes that levels are voltages (20*log), not powers (10*log). */
3214int iwl4965_calc_db_from_ratio(int sig_ratio)
3215{
3216 /* 1000:1 or higher just report as 60 dB */
3217 if (sig_ratio >= 1000)
3218 return 60;
3219
3220 /* 100:1 or higher, divide by 10 and use table,
3221 * add 20 dB to make up for divide by 10 */
3222 if (sig_ratio >= 100)
3223 return (20 + (int)ratio2dB[sig_ratio/10]);
3224
3225 /* We shouldn't see this */
3226 if (sig_ratio < 1)
3227 return 0;
3228
3229 /* Use table for ratios 1:1 - 99:1 */
3230 return (int)ratio2dB[sig_ratio];
3231}
3232
3233#define PERFECT_RSSI (-20) /* dBm */
3234#define WORST_RSSI (-95) /* dBm */
3235#define RSSI_RANGE (PERFECT_RSSI - WORST_RSSI)
3236
3237/* Calculate an indication of rx signal quality (a percentage, not dBm!).
3238 * See http://www.ces.clemson.edu/linux/signal_quality.shtml for info
3239 * about formulas used below. */
3240int iwl4965_calc_sig_qual(int rssi_dbm, int noise_dbm)
3241{
3242 int sig_qual;
3243 int degradation = PERFECT_RSSI - rssi_dbm;
3244
3245 /* If we get a noise measurement, use signal-to-noise ratio (SNR)
3246 * as indicator; formula is (signal dbm - noise dbm).
3247 * SNR at or above 40 is a great signal (100%).
3248 * Below that, scale to fit SNR of 0 - 40 dB within 0 - 100% indicator.
3249 * Weakest usable signal is usually 10 - 15 dB SNR. */
3250 if (noise_dbm) {
3251 if (rssi_dbm - noise_dbm >= 40)
3252 return 100;
3253 else if (rssi_dbm < noise_dbm)
3254 return 0;
3255 sig_qual = ((rssi_dbm - noise_dbm) * 5) / 2;
3256
3257 /* Else use just the signal level.
3258 * This formula is a least squares fit of data points collected and
3259 * compared with a reference system that had a percentage (%) display
3260 * for signal quality. */
3261 } else
3262 sig_qual = (100 * (RSSI_RANGE * RSSI_RANGE) - degradation *
3263 (15 * RSSI_RANGE + 62 * degradation)) /
3264 (RSSI_RANGE * RSSI_RANGE);
3265
3266 if (sig_qual > 100)
3267 sig_qual = 100;
3268 else if (sig_qual < 1)
3269 sig_qual = 0;
3270
3271 return sig_qual;
b481de9c
ZY		 3272}
3273
6440adb5
CB		 3274/**
3275 * iwl4965_tx_queue_update_write_ptr - Send new write index to hardware
3276 */
c79dd5b5 3277static int iwl4965_tx_queue_update_write_ptr(struct iwl_priv *priv,
16466903 3278 struct iwl_tx_queue *txq)
b481de9c
ZY		 3279{
3280 u32 reg = 0;
3281 int rc = 0;
3282 int txq_id = txq->q.id;
3283
3284 if (txq->need_update == 0)
3285 return rc;
3286
3287 /* if we're trying to save power */
3288 if (test_bit(STATUS_POWER_PMI, &priv->status)) {
3289 /* wake up nic if it's powered down ...
3290 * uCode will wake up, and interrupt us again, so next
3291 * time we'll skip this part. */
3395f6e9 3292 reg = iwl_read32(priv, CSR_UCODE_DRV_GP1);
b481de9c
ZY		 3293
3294 if (reg & CSR_UCODE_DRV_GP1_BIT_MAC_SLEEP) {
3295 IWL_DEBUG_INFO("Requesting wakeup, GP1 = 0x%x\n", reg);
3395f6e9 3296 iwl_set_bit(priv, CSR_GP_CNTRL,
b481de9c
ZY		 3297 CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ);
3298 return rc;
3299 }
3300
3301 /* restore this queue's parameters in nic hardware. */
3395f6e9 3302 rc = iwl_grab_nic_access(priv);
b481de9c
ZY		 3303 if (rc)
3304 return rc;
3395f6e9 3305 iwl_write_direct32(priv, HBUS_TARG_WRPTR,
fc4b6853 3306 txq->q.write_ptr | (txq_id << 8));
3395f6e9 3307 iwl_release_nic_access(priv);
b481de9c
ZY		 3308
3309 /* else not in power-save mode, uCode will never sleep when we're
3310 * trying to tx (during RFKILL, we're not trying to tx). */
3311 } else
3395f6e9 3312 iwl_write32(priv, HBUS_TARG_WRPTR,
fc4b6853 3313 txq->q.write_ptr | (txq_id << 8));
b481de9c
ZY		 3314
3315 txq->need_update = 0;
3316
3317 return rc;
3318}
3319
0a6857e7 3320#ifdef CONFIG_IWLWIFI_DEBUG
bf403db8 3321static void iwl4965_print_rx_config_cmd(struct iwl_priv *priv)
b481de9c 3322{
c1adf9fb 3323 struct iwl_rxon_cmd *rxon = &priv->staging_rxon;
0795af57
JP		 3324 DECLARE_MAC_BUF(mac);
3325
b481de9c 3326 IWL_DEBUG_RADIO("RX CONFIG:\n");
bf403db8 3327 iwl_print_hex_dump(priv, IWL_DL_RADIO, (u8 *) rxon, sizeof(*rxon));
b481de9c
ZY		 3328 IWL_DEBUG_RADIO("u16 channel: 0x%x\n", le16_to_cpu(rxon->channel));
3329 IWL_DEBUG_RADIO("u32 flags: 0x%08X\n", le32_to_cpu(rxon->flags));
3330 IWL_DEBUG_RADIO("u32 filter_flags: 0x%08x\n",
3331 le32_to_cpu(rxon->filter_flags));
3332 IWL_DEBUG_RADIO("u8 dev_type: 0x%x\n", rxon->dev_type);
3333 IWL_DEBUG_RADIO("u8 ofdm_basic_rates: 0x%02x\n",
3334 rxon->ofdm_basic_rates);
3335 IWL_DEBUG_RADIO("u8 cck_basic_rates: 0x%02x\n", rxon->cck_basic_rates);
0795af57
JP		 3336 IWL_DEBUG_RADIO("u8[6] node_addr: %s\n",
3337 print_mac(mac, rxon->node_addr));
3338 IWL_DEBUG_RADIO("u8[6] bssid_addr: %s\n",
3339 print_mac(mac, rxon->bssid_addr));
b481de9c
ZY		 3340 IWL_DEBUG_RADIO("u16 assoc_id: 0x%x\n", le16_to_cpu(rxon->assoc_id));
3341}
3342#endif
3343
c79dd5b5 3344static void iwl4965_enable_interrupts(struct iwl_priv *priv)
b481de9c
ZY		 3345{
3346 IWL_DEBUG_ISR("Enabling interrupts\n");
3347 set_bit(STATUS_INT_ENABLED, &priv->status);
3395f6e9 3348 iwl_write32(priv, CSR_INT_MASK, CSR_INI_SET_MASK);
b481de9c
ZY		 3349}
3350
0359facc
MA		 3351/* call this function to flush any scheduled tasklet */
3352static inline void iwl_synchronize_irq(struct iwl_priv *priv)
3353{
3354 /* wait to make sure we flush pedding tasklet*/
3355 synchronize_irq(priv->pci_dev->irq);
3356 tasklet_kill(&priv->irq_tasklet);
3357}
3358
c79dd5b5 3359static inline void iwl4965_disable_interrupts(struct iwl_priv *priv)
b481de9c
ZY		 3360{
3361 clear_bit(STATUS_INT_ENABLED, &priv->status);
3362
3363 /* disable interrupts from uCode/NIC to host */
3395f6e9 3364 iwl_write32(priv, CSR_INT_MASK, 0x00000000);
b481de9c
ZY		 3365
3366 /* acknowledge/clear/reset any interrupts still pending
3367 * from uCode or flow handler (Rx/Tx DMA) */
3395f6e9
TW		 3368 iwl_write32(priv, CSR_INT, 0xffffffff);
3369 iwl_write32(priv, CSR_FH_INT_STATUS, 0xffffffff);
b481de9c
ZY		 3370 IWL_DEBUG_ISR("Disabled interrupts\n");
3371}
3372
3373static const char *desc_lookup(int i)
3374{
3375 switch (i) {
3376 case 1:
3377 return "FAIL";
3378 case 2:
3379 return "BAD_PARAM";
3380 case 3:
3381 return "BAD_CHECKSUM";
3382 case 4:
3383 return "NMI_INTERRUPT";
3384 case 5:
3385 return "SYSASSERT";
3386 case 6:
3387 return "FATAL_ERROR";
3388 }
3389
3390 return "UNKNOWN";
3391}
3392
3393#define ERROR_START_OFFSET (1 * sizeof(u32))
3394#define ERROR_ELEM_SIZE (7 * sizeof(u32))
3395
c79dd5b5 3396static void iwl4965_dump_nic_error_log(struct iwl_priv *priv)
b481de9c
ZY		 3397{
3398 u32 data2, line;
3399 u32 desc, time, count, base, data1;
3400 u32 blink1, blink2, ilink1, ilink2;
3401 int rc;
3402
3403 base = le32_to_cpu(priv->card_alive.error_event_table_ptr);
3404
57aab75a 3405 if (!priv->cfg->ops->lib->is_valid_rtc_data_addr(base)) {
b481de9c
ZY		 3406 IWL_ERROR("Not valid error log pointer 0x%08X\n", base);
3407 return;
3408 }
3409
3395f6e9 3410 rc = iwl_grab_nic_access(priv);
b481de9c
ZY		 3411 if (rc) {
3412 IWL_WARNING("Can not read from adapter at this time.\n");
3413 return;
3414 }
3415
3395f6e9 3416 count = iwl_read_targ_mem(priv, base);
b481de9c
ZY		 3417
3418 if (ERROR_START_OFFSET <= count * ERROR_ELEM_SIZE) {
3419 IWL_ERROR("Start IWL Error Log Dump:\n");
2acae16e 3420 IWL_ERROR("Status: 0x%08lX, count: %d\n", priv->status, count);
b481de9c
ZY		 3421 }
3422
3395f6e9
TW		 3423 desc = iwl_read_targ_mem(priv, base + 1 * sizeof(u32));
3424 blink1 = iwl_read_targ_mem(priv, base + 3 * sizeof(u32));
3425 blink2 = iwl_read_targ_mem(priv, base + 4 * sizeof(u32));
3426 ilink1 = iwl_read_targ_mem(priv, base + 5 * sizeof(u32));
3427 ilink2 = iwl_read_targ_mem(priv, base + 6 * sizeof(u32));
3428 data1 = iwl_read_targ_mem(priv, base + 7 * sizeof(u32));
3429 data2 = iwl_read_targ_mem(priv, base + 8 * sizeof(u32));
3430 line = iwl_read_targ_mem(priv, base + 9 * sizeof(u32));
3431 time = iwl_read_targ_mem(priv, base + 11 * sizeof(u32));
b481de9c
ZY		 3432
3433 IWL_ERROR("Desc Time "
3434 "data1 data2 line\n");
3435 IWL_ERROR("%-13s (#%d) %010u 0x%08X 0x%08X %u\n",
3436 desc_lookup(desc), desc, time, data1, data2, line);
3437 IWL_ERROR("blink1 blink2 ilink1 ilink2\n");
3438 IWL_ERROR("0x%05X 0x%05X 0x%05X 0x%05X\n", blink1, blink2,
3439 ilink1, ilink2);
3440
3395f6e9 3441 iwl_release_nic_access(priv);
b481de9c
ZY		 3442}
3443
3444#define EVENT_START_OFFSET (4 * sizeof(u32))
3445
3446/**
bb8c093b 3447 * iwl4965_print_event_log - Dump error event log to syslog
b481de9c 3448 *
3395f6e9 3449 * NOTE: Must be called with iwl_grab_nic_access() already obtained!
b481de9c 3450 */
c79dd5b5 3451static void iwl4965_print_event_log(struct iwl_priv *priv, u32 start_idx,
b481de9c
ZY		 3452 u32 num_events, u32 mode)
3453{
3454 u32 i;
3455 u32 base; /* SRAM byte address of event log header */
3456 u32 event_size; /* 2 u32s, or 3 u32s if timestamp recorded */
3457 u32 ptr; /* SRAM byte address of log data */
3458 u32 ev, time, data; /* event log data */
3459
3460 if (num_events == 0)
3461 return;
3462
3463 base = le32_to_cpu(priv->card_alive.log_event_table_ptr);
3464
3465 if (mode == 0)
3466 event_size = 2 * sizeof(u32);
3467 else
3468 event_size = 3 * sizeof(u32);
3469
3470 ptr = base + EVENT_START_OFFSET + (start_idx * event_size);
3471
3472 /* "time" is actually "data" for mode 0 (no timestamp).
3473 * place event id # at far right for easier visual parsing. */
3474 for (i = 0; i < num_events; i++) {
3395f6e9 3475 ev = iwl_read_targ_mem(priv, ptr);
b481de9c 3476 ptr += sizeof(u32);
3395f6e9 3477 time = iwl_read_targ_mem(priv, ptr);
b481de9c
ZY		 3478 ptr += sizeof(u32);
3479 if (mode == 0)
3480 IWL_ERROR("0x%08x\t%04u\n", time, ev); /* data, ev */
3481 else {
3395f6e9 3482 data = iwl_read_targ_mem(priv, ptr);
b481de9c
ZY		 3483 ptr += sizeof(u32);
3484 IWL_ERROR("%010u\t0x%08x\t%04u\n", time, data, ev);
3485 }
3486 }
3487}
3488
c79dd5b5 3489static void iwl4965_dump_nic_event_log(struct iwl_priv *priv)
b481de9c
ZY		 3490{
3491 int rc;
3492 u32 base; /* SRAM byte address of event log header */
3493 u32 capacity; /* event log capacity in # entries */
3494 u32 mode; /* 0 - no timestamp, 1 - timestamp recorded */
3495 u32 num_wraps; /* # times uCode wrapped to top of log */
3496 u32 next_entry; /* index of next entry to be written by uCode */
3497 u32 size; /* # entries that we'll print */
3498
3499 base = le32_to_cpu(priv->card_alive.log_event_table_ptr);
57aab75a 3500 if (!priv->cfg->ops->lib->is_valid_rtc_data_addr(base)) {
b481de9c
ZY		 3501 IWL_ERROR("Invalid event log pointer 0x%08X\n", base);
3502 return;
3503 }
3504
3395f6e9 3505 rc = iwl_grab_nic_access(priv);
b481de9c
ZY		 3506 if (rc) {
3507 IWL_WARNING("Can not read from adapter at this time.\n");
3508 return;
3509 }
3510
3511 /* event log header */
3395f6e9
TW		 3512 capacity = iwl_read_targ_mem(priv, base);
3513 mode = iwl_read_targ_mem(priv, base + (1 * sizeof(u32)));
3514 num_wraps = iwl_read_targ_mem(priv, base + (2 * sizeof(u32)));
3515 next_entry = iwl_read_targ_mem(priv, base + (3 * sizeof(u32)));
b481de9c
ZY		 3516
3517 size = num_wraps ? capacity : next_entry;
3518
3519 /* bail out if nothing in log */
3520 if (size == 0) {
583fab37 3521 IWL_ERROR("Start IWL Event Log Dump: nothing in log\n");
3395f6e9 3522 iwl_release_nic_access(priv);
b481de9c
ZY		 3523 return;
3524 }
3525
583fab37 3526 IWL_ERROR("Start IWL Event Log Dump: display count %d, wraps %d\n",
b481de9c
ZY		 3527 size, num_wraps);
3528
3529 /* if uCode has wrapped back to top of log, start at the oldest entry,
3530 * i.e the next one that uCode would fill. */
3531 if (num_wraps)
bb8c093b 3532 iwl4965_print_event_log(priv, next_entry,
b481de9c
ZY		 3533 capacity - next_entry, mode);
3534
3535 /* (then/else) start at top of log */
bb8c093b 3536 iwl4965_print_event_log(priv, 0, next_entry, mode);
b481de9c 3537
3395f6e9 3538 iwl_release_nic_access(priv);
b481de9c
ZY		 3539}
3540
3541/**
bb8c093b 3542 * iwl4965_irq_handle_error - called for HW or SW error interrupt from card
b481de9c 3543 */
c79dd5b5 3544static void iwl4965_irq_handle_error(struct iwl_priv *priv)
b481de9c 3545{
bb8c093b 3546 /* Set the FW error flag -- cleared on iwl4965_down */
b481de9c
ZY		 3547 set_bit(STATUS_FW_ERROR, &priv->status);
3548
3549 /* Cancel currently queued command. */
3550 clear_bit(STATUS_HCMD_ACTIVE, &priv->status);
3551
0a6857e7 3552#ifdef CONFIG_IWLWIFI_DEBUG
bf403db8 3553 if (priv->debug_level & IWL_DL_FW_ERRORS) {
bb8c093b
CH		 3554 iwl4965_dump_nic_error_log(priv);
3555 iwl4965_dump_nic_event_log(priv);
bf403db8 3556 iwl4965_print_rx_config_cmd(priv);
b481de9c
ZY		 3557 }
3558#endif
3559
3560 wake_up_interruptible(&priv->wait_command_queue);
3561
3562 /* Keep the restart process from trying to send host
3563 * commands by clearing the INIT status bit */
3564 clear_bit(STATUS_READY, &priv->status);
3565
3566 if (!test_bit(STATUS_EXIT_PENDING, &priv->status)) {
f3d67999 3567 IWL_DEBUG(IWL_DL_FW_ERRORS,
b481de9c
ZY		 3568 "Restarting adapter due to uCode error.\n");
3569
3109ece1 3570 if (iwl_is_associated(priv)) {
b481de9c
ZY		 3571 memcpy(&priv->recovery_rxon, &priv->active_rxon,
3572 sizeof(priv->recovery_rxon));
3573 priv->error_recovering = 1;
3574 }
3a1081e8
EK		 3575 if (priv->cfg->mod_params->restart_fw)
3576 queue_work(priv->workqueue, &priv->restart);
b481de9c
ZY		 3577 }
3578}
3579
c79dd5b5 3580static void iwl4965_error_recovery(struct iwl_priv *priv)
b481de9c
ZY		 3581{
3582 unsigned long flags;
3583
3584 memcpy(&priv->staging_rxon, &priv->recovery_rxon,
3585 sizeof(priv->staging_rxon));
3586 priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
bb8c093b 3587 iwl4965_commit_rxon(priv);
b481de9c 3588
bb8c093b 3589 iwl4965_rxon_add_station(priv, priv->bssid, 1);
b481de9c
ZY		 3590
3591 spin_lock_irqsave(&priv->lock, flags);
3592 priv->assoc_id = le16_to_cpu(priv->staging_rxon.assoc_id);
3593 priv->error_recovering = 0;
3594 spin_unlock_irqrestore(&priv->lock, flags);
3595}
3596
c79dd5b5 3597static void iwl4965_irq_tasklet(struct iwl_priv *priv)
b481de9c
ZY		 3598{
3599 u32 inta, handled = 0;
3600 u32 inta_fh;
3601 unsigned long flags;
0a6857e7 3602#ifdef CONFIG_IWLWIFI_DEBUG
b481de9c
ZY		 3603 u32 inta_mask;
3604#endif
3605
3606 spin_lock_irqsave(&priv->lock, flags);
3607
3608 /* Ack/clear/reset pending uCode interrupts.
3609 * Note: Some bits in CSR_INT are "OR" of bits in CSR_FH_INT_STATUS,
3610 * and will clear only when CSR_FH_INT_STATUS gets cleared. */
3395f6e9
TW		 3611 inta = iwl_read32(priv, CSR_INT);
3612 iwl_write32(priv, CSR_INT, inta);
b481de9c
ZY		 3613
3614 /* Ack/clear/reset pending flow-handler (DMA) interrupts.
3615 * Any new interrupts that happen after this, either while we're
3616 * in this tasklet, or later, will show up in next ISR/tasklet. */
3395f6e9
TW		 3617 inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS);
3618 iwl_write32(priv, CSR_FH_INT_STATUS, inta_fh);
b481de9c 3619
0a6857e7 3620#ifdef CONFIG_IWLWIFI_DEBUG
bf403db8 3621 if (priv->debug_level & IWL_DL_ISR) {
9fbab516 3622 /* just for debug */
3395f6e9 3623 inta_mask = iwl_read32(priv, CSR_INT_MASK);
b481de9c
ZY		 3624 IWL_DEBUG_ISR("inta 0x%08x, enabled 0x%08x, fh 0x%08x\n",
3625 inta, inta_mask, inta_fh);
3626 }
3627#endif
3628
3629 /* Since CSR_INT and CSR_FH_INT_STATUS reads and clears are not
3630 * atomic, make sure that inta covers all the interrupts that
3631 * we've discovered, even if FH interrupt came in just after
3632 * reading CSR_INT. */
6f83eaa1 3633 if (inta_fh & CSR49_FH_INT_RX_MASK)
b481de9c 3634 inta |= CSR_INT_BIT_FH_RX;
6f83eaa1 3635 if (inta_fh & CSR49_FH_INT_TX_MASK)
b481de9c
ZY		 3636 inta |= CSR_INT_BIT_FH_TX;
3637
3638 /* Now service all interrupt bits discovered above. */
3639 if (inta & CSR_INT_BIT_HW_ERR) {
3640 IWL_ERROR("Microcode HW error detected. Restarting.\n");
3641
3642 /* Tell the device to stop sending interrupts */
bb8c093b 3643 iwl4965_disable_interrupts(priv);
b481de9c 3644
bb8c093b 3645 iwl4965_irq_handle_error(priv);
b481de9c
ZY		 3646
3647 handled |= CSR_INT_BIT_HW_ERR;
3648
3649 spin_unlock_irqrestore(&priv->lock, flags);
3650
3651 return;
3652 }
3653
0a6857e7 3654#ifdef CONFIG_IWLWIFI_DEBUG
bf403db8 3655 if (priv->debug_level & (IWL_DL_ISR)) {
b481de9c 3656 /* NIC fires this, but we don't use it, redundant with WAKEUP */
25c03d8e
JP		 3657 if (inta & CSR_INT_BIT_SCD)
3658 IWL_DEBUG_ISR("Scheduler finished to transmit "
3659 "the frame/frames.\n");
b481de9c
ZY		 3660
3661 /* Alive notification via Rx interrupt will do the real work */
3662 if (inta & CSR_INT_BIT_ALIVE)
3663 IWL_DEBUG_ISR("Alive interrupt\n");
3664 }
3665#endif
3666 /* Safely ignore these bits for debug checks below */
25c03d8e 3667 inta &= ~(CSR_INT_BIT_SCD | CSR_INT_BIT_ALIVE);
b481de9c 3668
9fbab516 3669 /* HW RF KILL switch toggled */
b481de9c
ZY		 3670 if (inta & CSR_INT_BIT_RF_KILL) {
3671 int hw_rf_kill = 0;
3395f6e9 3672 if (!(iwl_read32(priv, CSR_GP_CNTRL) &
b481de9c
ZY		 3673 CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW))
3674 hw_rf_kill = 1;
3675
f3d67999 3676 IWL_DEBUG(IWL_DL_RF_KILL, "RF_KILL bit toggled to %s.\n",
b481de9c
ZY		 3677 hw_rf_kill ? "disable radio":"enable radio");
3678
3679 /* Queue restart only if RF_KILL switch was set to "kill"
3680 * when we loaded driver, and is now set to "enable".
3681 * After we're Alive, RF_KILL gets handled by
3230455d 3682 * iwl4965_rx_card_state_notif() */
53e49093
ZY		 3683 if (!hw_rf_kill && !test_bit(STATUS_ALIVE, &priv->status)) {
3684 clear_bit(STATUS_RF_KILL_HW, &priv->status);
b481de9c 3685 queue_work(priv->workqueue, &priv->restart);
53e49093 3686 }
b481de9c
ZY		 3687
3688 handled |= CSR_INT_BIT_RF_KILL;
3689 }
3690
9fbab516 3691 /* Chip got too hot and stopped itself */
b481de9c
ZY		 3692 if (inta & CSR_INT_BIT_CT_KILL) {
3693 IWL_ERROR("Microcode CT kill error detected.\n");
3694 handled |= CSR_INT_BIT_CT_KILL;
3695 }
3696
3697 /* Error detected by uCode */
3698 if (inta & CSR_INT_BIT_SW_ERR) {
3699 IWL_ERROR("Microcode SW error detected. Restarting 0x%X.\n",
3700 inta);
bb8c093b 3701 iwl4965_irq_handle_error(priv);
b481de9c
ZY		 3702 handled |= CSR_INT_BIT_SW_ERR;
3703 }
3704
3705 /* uCode wakes up after power-down sleep */
3706 if (inta & CSR_INT_BIT_WAKEUP) {
3707 IWL_DEBUG_ISR("Wakeup interrupt\n");
a55360e4 3708 iwl_rx_queue_update_write_ptr(priv, &priv->rxq);
bb8c093b
CH		 3709 iwl4965_tx_queue_update_write_ptr(priv, &priv->txq[0]);
3710 iwl4965_tx_queue_update_write_ptr(priv, &priv->txq[1]);
3711 iwl4965_tx_queue_update_write_ptr(priv, &priv->txq[2]);
3712 iwl4965_tx_queue_update_write_ptr(priv, &priv->txq[3]);
3713 iwl4965_tx_queue_update_write_ptr(priv, &priv->txq[4]);
3714 iwl4965_tx_queue_update_write_ptr(priv, &priv->txq[5]);
b481de9c
ZY		 3715
3716 handled |= CSR_INT_BIT_WAKEUP;
3717 }
3718
3719 /* All uCode command responses, including Tx command responses,
3720 * Rx "responses" (frame-received notification), and other
3721 * notifications from uCode come through here*/
3722 if (inta & (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX)) {
a55360e4 3723 iwl_rx_handle(priv);
b481de9c
ZY		 3724 handled |= (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX);
3725 }
3726
3727 if (inta & CSR_INT_BIT_FH_TX) {
3728 IWL_DEBUG_ISR("Tx interrupt\n");
3729 handled |= CSR_INT_BIT_FH_TX;
3730 }
3731
3732 if (inta & ~handled)
3733 IWL_ERROR("Unhandled INTA bits 0x%08x\n", inta & ~handled);
3734
3735 if (inta & ~CSR_INI_SET_MASK) {
3736 IWL_WARNING("Disabled INTA bits 0x%08x were pending\n",
3737 inta & ~CSR_INI_SET_MASK);
3738 IWL_WARNING(" with FH_INT = 0x%08x\n", inta_fh);
3739 }
3740
3741 /* Re-enable all interrupts */
0359facc
MA		 3742 /* only Re-enable if diabled by irq */
3743 if (test_bit(STATUS_INT_ENABLED, &priv->status))
3744 iwl4965_enable_interrupts(priv);
b481de9c 3745
0a6857e7 3746#ifdef CONFIG_IWLWIFI_DEBUG
bf403db8 3747 if (priv->debug_level & (IWL_DL_ISR)) {
3395f6e9
TW		 3748 inta = iwl_read32(priv, CSR_INT);
3749 inta_mask = iwl_read32(priv, CSR_INT_MASK);
3750 inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS);
b481de9c
ZY		 3751 IWL_DEBUG_ISR("End inta 0x%08x, enabled 0x%08x, fh 0x%08x, "
3752 "flags 0x%08lx\n", inta, inta_mask, inta_fh, flags);
3753 }
3754#endif
3755 spin_unlock_irqrestore(&priv->lock, flags);
3756}
3757
bb8c093b 3758static irqreturn_t iwl4965_isr(int irq, void *data)
b481de9c 3759{
c79dd5b5 3760 struct iwl_priv *priv = data;
b481de9c
ZY		 3761 u32 inta, inta_mask;
3762 u32 inta_fh;
3763 if (!priv)
3764 return IRQ_NONE;
3765
3766 spin_lock(&priv->lock);
3767
3768 /* Disable (but don't clear!) interrupts here to avoid
3769 * back-to-back ISRs and sporadic interrupts from our NIC.
3770 * If we have something to service, the tasklet will re-enable ints.
3771 * If we *don't* have something, we'll re-enable before leaving here. */
3395f6e9
TW		 3772 inta_mask = iwl_read32(priv, CSR_INT_MASK); /* just for debug */
3773 iwl_write32(priv, CSR_INT_MASK, 0x00000000);
b481de9c
ZY		 3774
3775 /* Discover which interrupts are active/pending */
3395f6e9
TW		 3776 inta = iwl_read32(priv, CSR_INT);
3777 inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS);
b481de9c
ZY		 3778
3779 /* Ignore interrupt if there's nothing in NIC to service.
3780 * This may be due to IRQ shared with another device,
3781 * or due to sporadic interrupts thrown from our NIC. */
3782 if (!inta && !inta_fh) {
3783 IWL_DEBUG_ISR("Ignore interrupt, inta == 0, inta_fh == 0\n");
3784 goto none;
3785 }
3786
3787 if ((inta == 0xFFFFFFFF) || ((inta & 0xFFFFFFF0) == 0xa5a5a5a0)) {
66fbb541
ON		 3788 /* Hardware disappeared. It might have already raised
3789 * an interrupt */
b481de9c 3790 IWL_WARNING("HARDWARE GONE?? INTA == 0x%080x\n", inta);
66fbb541 3791 goto unplugged;
b481de9c
ZY		 3792 }
3793
3794 IWL_DEBUG_ISR("ISR inta 0x%08x, enabled 0x%08x, fh 0x%08x\n",
3795 inta, inta_mask, inta_fh);
3796
25c03d8e
JP		 3797 inta &= ~CSR_INT_BIT_SCD;
3798
bb8c093b 3799 /* iwl4965_irq_tasklet() will service interrupts and re-enable them */
25c03d8e
JP		 3800 if (likely(inta || inta_fh))
3801 tasklet_schedule(&priv->irq_tasklet);
b481de9c 3802
66fbb541
ON		 3803 unplugged:
3804 spin_unlock(&priv->lock);
b481de9c
ZY		 3805 return IRQ_HANDLED;
3806
3807 none:
3808 /* re-enable interrupts here since we don't have anything to service. */
0359facc
MA		 3809 /* only Re-enable if diabled by irq */
3810 if (test_bit(STATUS_INT_ENABLED, &priv->status))
3811 iwl4965_enable_interrupts(priv);
b481de9c
ZY		 3812 spin_unlock(&priv->lock);
3813 return IRQ_NONE;
3814}
3815
b481de9c
ZY		 3816/* For active scan, listen ACTIVE_DWELL_TIME (msec) on each channel after
3817 * sending probe req. This should be set long enough to hear probe responses
3818 * from more than one AP. */
3819#define IWL_ACTIVE_DWELL_TIME_24 (20) /* all times in msec */
3820#define IWL_ACTIVE_DWELL_TIME_52 (10)
3821
3822/* For faster active scanning, scan will move to the next channel if fewer than
3823 * PLCP_QUIET_THRESH packets are heard on this channel within
3824 * ACTIVE_QUIET_TIME after sending probe request. This shortens the dwell
3825 * time if it's a quiet channel (nothing responded to our probe, and there's
3826 * no other traffic).
3827 * Disable "quiet" feature by setting PLCP_QUIET_THRESH to 0. */
3828#define IWL_PLCP_QUIET_THRESH __constant_cpu_to_le16(1) /* packets */
3829#define IWL_ACTIVE_QUIET_TIME __constant_cpu_to_le16(5) /* msec */
3830
3831/* For passive scan, listen PASSIVE_DWELL_TIME (msec) on each channel.
3832 * Must be set longer than active dwell time.
3833 * For the most reliable scan, set > AP beacon interval (typically 100msec). */
3834#define IWL_PASSIVE_DWELL_TIME_24 (20) /* all times in msec */
3835#define IWL_PASSIVE_DWELL_TIME_52 (10)
3836#define IWL_PASSIVE_DWELL_BASE (100)
3837#define IWL_CHANNEL_TUNE_TIME 5
3838
c79dd5b5 3839static inline u16 iwl4965_get_active_dwell_time(struct iwl_priv *priv,
8318d78a 3840 enum ieee80211_band band)
b481de9c 3841{
8318d78a 3842 if (band == IEEE80211_BAND_5GHZ)
b481de9c
ZY		 3843 return IWL_ACTIVE_DWELL_TIME_52;
3844 else
3845 return IWL_ACTIVE_DWELL_TIME_24;
3846}
3847
c79dd5b5 3848static u16 iwl4965_get_passive_dwell_time(struct iwl_priv *priv,
8318d78a 3849 enum ieee80211_band band)
b481de9c 3850{
8318d78a
JB		 3851 u16 active = iwl4965_get_active_dwell_time(priv, band);
3852 u16 passive = (band != IEEE80211_BAND_5GHZ) ?
b481de9c
ZY		 3853 IWL_PASSIVE_DWELL_BASE + IWL_PASSIVE_DWELL_TIME_24 :
3854 IWL_PASSIVE_DWELL_BASE + IWL_PASSIVE_DWELL_TIME_52;
3855
3109ece1 3856 if (iwl_is_associated(priv)) {
b481de9c
ZY		 3857 /* If we're associated, we clamp the maximum passive
3858 * dwell time to be 98% of the beacon interval (minus
3859 * 2 * channel tune time) */
3860 passive = priv->beacon_int;
3861 if ((passive > IWL_PASSIVE_DWELL_BASE) || !passive)
3862 passive = IWL_PASSIVE_DWELL_BASE;
3863 passive = (passive * 98) / 100 - IWL_CHANNEL_TUNE_TIME * 2;
3864 }
3865
3866 if (passive <= active)
3867 passive = active + 1;
3868
3869 return passive;
3870}
3871
c79dd5b5 3872static int iwl4965_get_channels_for_scan(struct iwl_priv *priv,
8318d78a 3873 enum ieee80211_band band,
b481de9c 3874 u8 is_active, u8 direct_mask,
bb8c093b 3875 struct iwl4965_scan_channel *scan_ch)
b481de9c
ZY		 3876{
3877 const struct ieee80211_channel *channels = NULL;
8318d78a 3878 const struct ieee80211_supported_band *sband;
bf85ea4f 3879 const struct iwl_channel_info *ch_info;
b481de9c
ZY		 3880 u16 passive_dwell = 0;
3881 u16 active_dwell = 0;
3882 int added, i;
3883
d1141dfb 3884 sband = iwl_get_hw_mode(priv, band);
8318d78a 3885 if (!sband)
b481de9c
ZY		 3886 return 0;
3887
8318d78a 3888 channels = sband->channels;
b481de9c 3889
8318d78a
JB		 3890 active_dwell = iwl4965_get_active_dwell_time(priv, band);
3891 passive_dwell = iwl4965_get_passive_dwell_time(priv, band);
b481de9c 3892
8318d78a 3893 for (i = 0, added = 0; i < sband->n_channels; i++) {
182e2e66
JB		 3894 if (channels[i].flags & IEEE80211_CHAN_DISABLED)
3895 continue;
3896
8318d78a 3897 scan_ch->channel = ieee80211_frequency_to_channel(channels[i].center_freq);
b481de9c 3898
8622e705 3899 ch_info = iwl_get_channel_info(priv, band,
9fbab516 3900 scan_ch->channel);
b481de9c
ZY		 3901 if (!is_channel_valid(ch_info)) {
3902 IWL_DEBUG_SCAN("Channel %d is INVALID for this SKU.\n",
3903 scan_ch->channel);
3904 continue;
3905 }
3906
3907 if (!is_active || is_channel_passive(ch_info) ||
8318d78a 3908 (channels[i].flags & IEEE80211_CHAN_PASSIVE_SCAN))
b481de9c
ZY		 3909 scan_ch->type = 0; /* passive */
3910 else
3911 scan_ch->type = 1; /* active */
3912
3913 if (scan_ch->type & 1)
3914 scan_ch->type |= (direct_mask << 1);
3915
b481de9c
ZY		 3916 scan_ch->active_dwell = cpu_to_le16(active_dwell);
3917 scan_ch->passive_dwell = cpu_to_le16(passive_dwell);
3918
9fbab516 3919 /* Set txpower levels to defaults */
b481de9c
ZY		 3920 scan_ch->tpc.dsp_atten = 110;
3921 /* scan_pwr_info->tpc.dsp_atten; */
3922
3923 /*scan_pwr_info->tpc.tx_gain; */
8318d78a 3924 if (band == IEEE80211_BAND_5GHZ)
b481de9c
ZY		 3925 scan_ch->tpc.tx_gain = ((1 << 5) | (3 << 3)) | 3;
3926 else {
3927 scan_ch->tpc.tx_gain = ((1 << 5) | (5 << 3));
3928 /* NOTE: if we were doing 6Mb OFDM for scans we'd use
9fbab516 3929 * power level:
8a1b0245 3930 * scan_ch->tpc.tx_gain = ((1 << 5) | (2 << 3)) | 3;
b481de9c
ZY		 3931 */
3932 }
3933
3934 IWL_DEBUG_SCAN("Scanning %d [%s %d]\n",
3935 scan_ch->channel,
3936 (scan_ch->type & 1) ? "ACTIVE" : "PASSIVE",
3937 (scan_ch->type & 1) ?
3938 active_dwell : passive_dwell);
3939
3940 scan_ch++;
3941 added++;
3942 }
3943
3944 IWL_DEBUG_SCAN("total channels to scan %d \n", added);
3945 return added;
3946}
3947
b481de9c
ZY		 3948/******************************************************************************
3949 *
3950 * uCode download functions
3951 *
3952 ******************************************************************************/
3953
c79dd5b5 3954static void iwl4965_dealloc_ucode_pci(struct iwl_priv *priv)
b481de9c 3955{
98c92211
TW		 3956 iwl_free_fw_desc(priv->pci_dev, &priv->ucode_code);
3957 iwl_free_fw_desc(priv->pci_dev, &priv->ucode_data);
3958 iwl_free_fw_desc(priv->pci_dev, &priv->ucode_data_backup);
3959 iwl_free_fw_desc(priv->pci_dev, &priv->ucode_init);
3960 iwl_free_fw_desc(priv->pci_dev, &priv->ucode_init_data);
3961 iwl_free_fw_desc(priv->pci_dev, &priv->ucode_boot);
b481de9c
ZY		 3962}
3963
edcdf8b2
RR		 3964static void iwl4965_nic_start(struct iwl_priv *priv)
3965{
3966 /* Remove all resets to allow NIC to operate */
3967 iwl_write32(priv, CSR_RESET, 0);
3968}
3969
3970
b481de9c 3971/**
bb8c093b 3972 * iwl4965_read_ucode - Read uCode images from disk file.
b481de9c
ZY		 3973 *
3974 * Copy into buffers for card to fetch via bus-mastering
3975 */
c79dd5b5 3976static int iwl4965_read_ucode(struct iwl_priv *priv)
b481de9c 3977{
bb8c093b 3978 struct iwl4965_ucode *ucode;
90e759d1 3979 int ret;
b481de9c 3980 const struct firmware *ucode_raw;
4bf775cd 3981 const char *name = priv->cfg->fw_name;
b481de9c
ZY		 3982 u8 *src;
3983 size_t len;
3984 u32 ver, inst_size, data_size, init_size, init_data_size, boot_size;
3985
3986 /* Ask kernel firmware_class module to get the boot firmware off disk.
3987 * request_firmware() is synchronous, file is in memory on return. */
90e759d1
TW		 3988 ret = request_firmware(&ucode_raw, name, &priv->pci_dev->dev);
3989 if (ret < 0) {
3990 IWL_ERROR("%s firmware file req failed: Reason %d\n",
3991 name, ret);
b481de9c
ZY		 3992 goto error;
3993 }
3994
3995 IWL_DEBUG_INFO("Got firmware '%s' file (%zd bytes) from disk\n",
3996 name, ucode_raw->size);
3997
3998 /* Make sure that we got at least our header! */
3999 if (ucode_raw->size < sizeof(*ucode)) {
4000 IWL_ERROR("File size way too small!\n");
90e759d1 4001 ret = -EINVAL;
b481de9c
ZY		 4002 goto err_release;
4003 }
4004
4005 /* Data from ucode file: header followed by uCode images */
4006 ucode = (void *)ucode_raw->data;
4007
4008 ver = le32_to_cpu(ucode->ver);
4009 inst_size = le32_to_cpu(ucode->inst_size);
4010 data_size = le32_to_cpu(ucode->data_size);
4011 init_size = le32_to_cpu(ucode->init_size);
4012 init_data_size = le32_to_cpu(ucode->init_data_size);
4013 boot_size = le32_to_cpu(ucode->boot_size);
4014
4015 IWL_DEBUG_INFO("f/w package hdr ucode version = 0x%x\n", ver);
4016 IWL_DEBUG_INFO("f/w package hdr runtime inst size = %u\n",
4017 inst_size);
4018 IWL_DEBUG_INFO("f/w package hdr runtime data size = %u\n",
4019 data_size);
4020 IWL_DEBUG_INFO("f/w package hdr init inst size = %u\n",
4021 init_size);
4022 IWL_DEBUG_INFO("f/w package hdr init data size = %u\n",
4023 init_data_size);
4024 IWL_DEBUG_INFO("f/w package hdr boot inst size = %u\n",
4025 boot_size);
4026
4027 /* Verify size of file vs. image size info in file's header */
4028 if (ucode_raw->size < sizeof(*ucode) +
4029 inst_size + data_size + init_size +
4030 init_data_size + boot_size) {
4031
4032 IWL_DEBUG_INFO("uCode file size %d too small\n",
4033 (int)ucode_raw->size);
90e759d1 4034 ret = -EINVAL;
b481de9c
ZY		 4035 goto err_release;
4036 }
4037
4038 /* Verify that uCode images will fit in card's SRAM */
099b40b7 4039 if (inst_size > priv->hw_params.max_inst_size) {
90e759d1
TW		 4040 IWL_DEBUG_INFO("uCode instr len %d too large to fit in\n",
4041 inst_size);
4042 ret = -EINVAL;
b481de9c
ZY		 4043 goto err_release;
4044 }
4045
099b40b7 4046 if (data_size > priv->hw_params.max_data_size) {
90e759d1
TW		 4047 IWL_DEBUG_INFO("uCode data len %d too large to fit in\n",
4048 data_size);
4049 ret = -EINVAL;
b481de9c
ZY		 4050 goto err_release;
4051 }
099b40b7 4052 if (init_size > priv->hw_params.max_inst_size) {
b481de9c 4053 IWL_DEBUG_INFO
90e759d1
TW		 4054 ("uCode init instr len %d too large to fit in\n",
4055 init_size);
4056 ret = -EINVAL;
b481de9c
ZY		 4057 goto err_release;
4058 }
099b40b7 4059 if (init_data_size > priv->hw_params.max_data_size) {
b481de9c 4060 IWL_DEBUG_INFO
90e759d1
TW		 4061 ("uCode init data len %d too large to fit in\n",
4062 init_data_size);
4063 ret = -EINVAL;
b481de9c
ZY		 4064 goto err_release;
4065 }
099b40b7 4066 if (boot_size > priv->hw_params.max_bsm_size) {
b481de9c 4067 IWL_DEBUG_INFO
90e759d1
TW		 4068 ("uCode boot instr len %d too large to fit in\n",
4069 boot_size);
4070 ret = -EINVAL;
b481de9c
ZY		 4071 goto err_release;
4072 }
4073
4074 /* Allocate ucode buffers for card's bus-master loading ... */
4075
4076 /* Runtime instructions and 2 copies of data:
4077 * 1) unmodified from disk
4078 * 2) backup cache for save/restore during power-downs */
4079 priv->ucode_code.len = inst_size;
98c92211 4080 iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_code);
b481de9c
ZY		 4081
4082 priv->ucode_data.len = data_size;
98c92211 4083 iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_data);
b481de9c
ZY		 4084
4085 priv->ucode_data_backup.len = data_size;
98c92211 4086 iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_data_backup);
b481de9c
ZY		 4087
4088 /* Initialization instructions and data */
90e759d1
TW		 4089 if (init_size && init_data_size) {
4090 priv->ucode_init.len = init_size;
98c92211 4091 iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_init);
90e759d1
TW		 4092
4093 priv->ucode_init_data.len = init_data_size;
98c92211 4094 iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_init_data);
90e759d1
TW		 4095
4096 if (!priv->ucode_init.v_addr || !priv->ucode_init_data.v_addr)
4097 goto err_pci_alloc;
4098 }
b481de9c
ZY		 4099
4100 /* Bootstrap (instructions only, no data) */
90e759d1
TW		 4101 if (boot_size) {
4102 priv->ucode_boot.len = boot_size;
98c92211 4103 iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_boot);
b481de9c 4104
90e759d1
TW		 4105 if (!priv->ucode_boot.v_addr)
4106 goto err_pci_alloc;
4107 }
b481de9c
ZY		 4108
4109 /* Copy images into buffers for card's bus-master reads ... */
4110
4111 /* Runtime instructions (first block of data in file) */
4112 src = &ucode->data[0];
4113 len = priv->ucode_code.len;
90e759d1 4114 IWL_DEBUG_INFO("Copying (but not loading) uCode instr len %Zd\n", len);
b481de9c
ZY		 4115 memcpy(priv->ucode_code.v_addr, src, len);
4116 IWL_DEBUG_INFO("uCode instr buf vaddr = 0x%p, paddr = 0x%08x\n",
4117 priv->ucode_code.v_addr, (u32)priv->ucode_code.p_addr);
4118
4119 /* Runtime data (2nd block)
bb8c093b 4120 * NOTE: Copy into backup buffer will be done in iwl4965_up() */
b481de9c
ZY		 4121 src = &ucode->data[inst_size];
4122 len = priv->ucode_data.len;
90e759d1 4123 IWL_DEBUG_INFO("Copying (but not loading) uCode data len %Zd\n", len);
b481de9c
ZY		 4124 memcpy(priv->ucode_data.v_addr, src, len);
4125 memcpy(priv->ucode_data_backup.v_addr, src, len);
4126
4127 /* Initialization instructions (3rd block) */
4128 if (init_size) {
4129 src = &ucode->data[inst_size + data_size];
4130 len = priv->ucode_init.len;
90e759d1
TW		 4131 IWL_DEBUG_INFO("Copying (but not loading) init instr len %Zd\n",
4132 len);
b481de9c
ZY		 4133 memcpy(priv->ucode_init.v_addr, src, len);
4134 }
4135
4136 /* Initialization data (4th block) */
4137 if (init_data_size) {
4138 src = &ucode->data[inst_size + data_size + init_size];
4139 len = priv->ucode_init_data.len;
90e759d1
TW		 4140 IWL_DEBUG_INFO("Copying (but not loading) init data len %Zd\n",
4141 len);
b481de9c
ZY		 4142 memcpy(priv->ucode_init_data.v_addr, src, len);
4143 }
4144
4145 /* Bootstrap instructions (5th block) */
4146 src = &ucode->data[inst_size + data_size + init_size + init_data_size];
4147 len = priv->ucode_boot.len;
90e759d1 4148 IWL_DEBUG_INFO("Copying (but not loading) boot instr len %Zd\n", len);
b481de9c
ZY		 4149 memcpy(priv->ucode_boot.v_addr, src, len);
4150
4151 /* We have our copies now, allow OS release its copies */
4152 release_firmware(ucode_raw);
4153 return 0;
4154
4155 err_pci_alloc:
4156 IWL_ERROR("failed to allocate pci memory\n");
90e759d1 4157 ret = -ENOMEM;
bb8c093b 4158 iwl4965_dealloc_ucode_pci(priv);
b481de9c
ZY		 4159
4160 err_release:
4161 release_firmware(ucode_raw);
4162
4163 error:
90e759d1 4164 return ret;
b481de9c
ZY		 4165}
4166
b481de9c 4167/**
bb8c093b 4168 * iwl4965_alive_start - called after REPLY_ALIVE notification received
b481de9c 4169 * from protocol/runtime uCode (initialization uCode's
bb8c093b 4170 * Alive gets handled by iwl4965_init_alive_start()).
b481de9c 4171 */
c79dd5b5 4172static void iwl4965_alive_start(struct iwl_priv *priv)
b481de9c 4173{
57aab75a 4174 int ret = 0;
b481de9c
ZY		 4175
4176 IWL_DEBUG_INFO("Runtime Alive received.\n");
4177
4178 if (priv->card_alive.is_valid != UCODE_VALID_OK) {
4179 /* We had an error bringing up the hardware, so take it
4180 * all the way back down so we can try again */
4181 IWL_DEBUG_INFO("Alive failed.\n");
4182 goto restart;
4183 }
4184
4185 /* Initialize uCode has loaded Runtime uCode ... verify inst image.
4186 * This is a paranoid check, because we would not have gotten the
4187 * "runtime" alive if code weren't properly loaded. */
b0692f2f 4188 if (iwl_verify_ucode(priv)) {
b481de9c
ZY		 4189 /* Runtime instruction load was bad;
4190 * take it all the way back down so we can try again */
4191 IWL_DEBUG_INFO("Bad runtime uCode load.\n");
4192 goto restart;
4193 }
4194
bf85ea4f 4195 iwlcore_clear_stations_table(priv);
b481de9c 4196
57aab75a
TW		 4197 ret = priv->cfg->ops->lib->alive_notify(priv);
4198 if (ret) {
b481de9c 4199 IWL_WARNING("Could not complete ALIVE transition [ntf]: %d\n",
57aab75a 4200 ret);
b481de9c
ZY		 4201 goto restart;
4202 }
4203
9fbab516 4204 /* After the ALIVE response, we can send host commands to 4965 uCode */
b481de9c
ZY		 4205 set_bit(STATUS_ALIVE, &priv->status);
4206
4207 /* Clear out the uCode error bit if it is set */
4208 clear_bit(STATUS_FW_ERROR, &priv->status);
4209
fee1247a 4210 if (iwl_is_rfkill(priv))
b481de9c
ZY		 4211 return;
4212
5a66926a 4213 ieee80211_start_queues(priv->hw);
b481de9c
ZY		 4214
4215 priv->active_rate = priv->rates_mask;
4216 priv->active_rate_basic = priv->rates_mask & IWL_BASIC_RATES_MASK;
4217
3109ece1 4218 if (iwl_is_associated(priv)) {
c1adf9fb
GG		 4219 struct iwl_rxon_cmd *active_rxon =
4220 (struct iwl_rxon_cmd *)&priv->active_rxon;
b481de9c
ZY		 4221
4222 memcpy(&priv->staging_rxon, &priv->active_rxon,
4223 sizeof(priv->staging_rxon));
4224 active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK;
4225 } else {
4226 /* Initialize our rx_config data */
bb8c093b 4227 iwl4965_connection_init_rx_config(priv);
b481de9c
ZY		 4228 memcpy(priv->staging_rxon.node_addr, priv->mac_addr, ETH_ALEN);
4229 }
4230
9fbab516 4231 /* Configure Bluetooth device coexistence support */
bb8c093b 4232 iwl4965_send_bt_config(priv);
b481de9c
ZY		 4233
4234 /* Configure the adapter for unassociated operation */
bb8c093b 4235 iwl4965_commit_rxon(priv);
b481de9c
ZY		 4236
4237 /* At this point, the NIC is initialized and operational */
4238 priv->notif_missed_beacons = 0;
b481de9c
ZY		 4239
4240 iwl4965_rf_kill_ct_config(priv);
5a66926a 4241
fe00b5a5
RC		 4242 iwl_leds_register(priv);
4243
b481de9c 4244 IWL_DEBUG_INFO("ALIVE processing complete.\n");
a9f46786 4245 set_bit(STATUS_READY, &priv->status);
5a66926a 4246 wake_up_interruptible(&priv->wait_command_queue);
b481de9c
ZY		 4247
4248 if (priv->error_recovering)
bb8c093b 4249 iwl4965_error_recovery(priv);
b481de9c 4250
c8381fdc 4251 iwlcore_low_level_notify(priv, IWLCORE_START_EVT);
84363e6e 4252 ieee80211_notify_mac(priv->hw, IEEE80211_NOTIFY_RE_ASSOC);
b481de9c
ZY		 4253 return;
4254
4255 restart:
4256 queue_work(priv->workqueue, &priv->restart);
4257}
4258
c79dd5b5 4259static void iwl4965_cancel_deferred_work(struct iwl_priv *priv);
b481de9c 4260
c79dd5b5 4261static void __iwl4965_down(struct iwl_priv *priv)
b481de9c
ZY		 4262{
4263 unsigned long flags;
4264 int exit_pending = test_bit(STATUS_EXIT_PENDING, &priv->status);
4265 struct ieee80211_conf *conf = NULL;
4266
4267 IWL_DEBUG_INFO(DRV_NAME " is going down\n");
4268
4269 conf = ieee80211_get_hw_conf(priv->hw);
4270
4271 if (!exit_pending)
4272 set_bit(STATUS_EXIT_PENDING, &priv->status);
4273
ab53d8af
MA		 4274 iwl_leds_unregister(priv);
4275
c8381fdc
MA		 4276 iwlcore_low_level_notify(priv, IWLCORE_STOP_EVT);
4277
bf85ea4f 4278 iwlcore_clear_stations_table(priv);
b481de9c
ZY		 4279
4280 /* Unblock any waiting calls */
4281 wake_up_interruptible_all(&priv->wait_command_queue);
4282
b481de9c
ZY		 4283 /* Wipe out the EXIT_PENDING status bit if we are not actually
4284 * exiting the module */
4285 if (!exit_pending)
4286 clear_bit(STATUS_EXIT_PENDING, &priv->status);
4287
4288 /* stop and reset the on-board processor */
3395f6e9 4289 iwl_write32(priv, CSR_RESET, CSR_RESET_REG_FLAG_NEVO_RESET);
b481de9c
ZY		 4290
4291 /* tell the device to stop sending interrupts */
0359facc 4292 spin_lock_irqsave(&priv->lock, flags);
bb8c093b 4293 iwl4965_disable_interrupts(priv);
0359facc
MA		 4294 spin_unlock_irqrestore(&priv->lock, flags);
4295 iwl_synchronize_irq(priv);
b481de9c
ZY		 4296
4297 if (priv->mac80211_registered)
4298 ieee80211_stop_queues(priv->hw);
4299
bb8c093b 4300 /* If we have not previously called iwl4965_init() then
b481de9c 4301 * clear all bits but the RF Kill and SUSPEND bits and return */
fee1247a 4302 if (!iwl_is_init(priv)) {
b481de9c
ZY		 4303 priv->status = test_bit(STATUS_RF_KILL_HW, &priv->status) <<
4304 STATUS_RF_KILL_HW |
4305 test_bit(STATUS_RF_KILL_SW, &priv->status) <<
4306 STATUS_RF_KILL_SW |
9788864e
RC		 4307 test_bit(STATUS_GEO_CONFIGURED, &priv->status) <<
4308 STATUS_GEO_CONFIGURED |
b481de9c
ZY		 4309 test_bit(STATUS_IN_SUSPEND, &priv->status) <<
4310 STATUS_IN_SUSPEND;
4311 goto exit;
4312 }
4313
4314 /* ...otherwise clear out all the status bits but the RF Kill and
4315 * SUSPEND bits and continue taking the NIC down. */
4316 priv->status &= test_bit(STATUS_RF_KILL_HW, &priv->status) <<
4317 STATUS_RF_KILL_HW |
4318 test_bit(STATUS_RF_KILL_SW, &priv->status) <<
4319 STATUS_RF_KILL_SW |
9788864e
RC		 4320 test_bit(STATUS_GEO_CONFIGURED, &priv->status) <<
4321 STATUS_GEO_CONFIGURED |
b481de9c
ZY		 4322 test_bit(STATUS_IN_SUSPEND, &priv->status) <<
4323 STATUS_IN_SUSPEND |
4324 test_bit(STATUS_FW_ERROR, &priv->status) <<
4325 STATUS_FW_ERROR;
4326
4327 spin_lock_irqsave(&priv->lock, flags);
3395f6e9 4328 iwl_clear_bit(priv, CSR_GP_CNTRL,
9fbab516 4329 CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ);
b481de9c
ZY		 4330 spin_unlock_irqrestore(&priv->lock, flags);
4331
bb8c093b
CH		 4332 iwl4965_hw_txq_ctx_stop(priv);
4333 iwl4965_hw_rxq_stop(priv);
b481de9c
ZY		 4334
4335 spin_lock_irqsave(&priv->lock, flags);
3395f6e9
TW		 4336 if (!iwl_grab_nic_access(priv)) {
4337 iwl_write_prph(priv, APMG_CLK_DIS_REG,
b481de9c 4338 APMG_CLK_VAL_DMA_CLK_RQT);
3395f6e9 4339 iwl_release_nic_access(priv);
b481de9c
ZY		 4340 }
4341 spin_unlock_irqrestore(&priv->lock, flags);
4342
4343 udelay(5);
4344
bb8c093b 4345 iwl4965_hw_nic_stop_master(priv);
3395f6e9 4346 iwl_set_bit(priv, CSR_RESET, CSR_RESET_REG_FLAG_SW_RESET);
bb8c093b 4347 iwl4965_hw_nic_reset(priv);
399f4900 4348 priv->cfg->ops->lib->free_shared_mem(priv);
b481de9c
ZY		 4349
4350 exit:
bb8c093b 4351 memset(&priv->card_alive, 0, sizeof(struct iwl4965_alive_resp));
b481de9c
ZY		 4352
4353 if (priv->ibss_beacon)
4354 dev_kfree_skb(priv->ibss_beacon);
4355 priv->ibss_beacon = NULL;
4356
4357 /* clear out any free frames */
bb8c093b 4358 iwl4965_clear_free_frames(priv);
b481de9c
ZY		 4359}
4360
c79dd5b5 4361static void iwl4965_down(struct iwl_priv *priv)
b481de9c
ZY		 4362{
4363 mutex_lock(&priv->mutex);
bb8c093b 4364 __iwl4965_down(priv);
b481de9c 4365 mutex_unlock(&priv->mutex);
b24d22b1 4366
bb8c093b 4367 iwl4965_cancel_deferred_work(priv);
b481de9c
ZY		 4368}
4369
4370#define MAX_HW_RESTARTS 5
4371
c79dd5b5 4372static int __iwl4965_up(struct iwl_priv *priv)
b481de9c 4373{
57aab75a
TW		 4374 int i;
4375 int ret;
b481de9c
ZY		 4376
4377 if (test_bit(STATUS_EXIT_PENDING, &priv->status)) {
4378 IWL_WARNING("Exit pending; will not bring the NIC up\n");
4379 return -EIO;
4380 }
4381
4382 if (test_bit(STATUS_RF_KILL_SW, &priv->status)) {
4383 IWL_WARNING("Radio disabled by SW RF kill (module "
4384 "parameter)\n");
ad97edd2 4385 iwl_rfkill_set_hw_state(priv);
e655b9f0
ZY		 4386 return -ENODEV;
4387 }
4388
e903fbd4
RC		 4389 if (!priv->ucode_data_backup.v_addr || !priv->ucode_data.v_addr) {
4390 IWL_ERROR("ucode not available for device bringup\n");
4391 return -EIO;
4392 }
4393
e655b9f0 4394 /* If platform's RF_KILL switch is NOT set to KILL */
3395f6e9 4395 if (iwl_read32(priv, CSR_GP_CNTRL) &
e655b9f0
ZY		 4396 CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW)
4397 clear_bit(STATUS_RF_KILL_HW, &priv->status);
4398 else {
4399 set_bit(STATUS_RF_KILL_HW, &priv->status);
4400 if (!test_bit(STATUS_IN_SUSPEND, &priv->status)) {
ad97edd2 4401 iwl_rfkill_set_hw_state(priv);
e655b9f0
ZY		 4402 IWL_WARNING("Radio disabled by HW RF Kill switch\n");
4403 return -ENODEV;
4404 }
b481de9c
ZY		 4405 }
4406
ad97edd2 4407 iwl_rfkill_set_hw_state(priv);
3395f6e9 4408 iwl_write32(priv, CSR_INT, 0xFFFFFFFF);
b481de9c 4409
399f4900
RR		 4410 ret = priv->cfg->ops->lib->alloc_shared_mem(priv);
4411 if (ret) {
4412 IWL_ERROR("Unable to allocate shared memory\n");
4413 return ret;
4414 }
4415
1053d35f 4416 ret = iwl_hw_nic_init(priv);
57aab75a
TW		 4417 if (ret) {
4418 IWL_ERROR("Unable to init nic\n");
4419 return ret;
b481de9c
ZY		 4420 }
4421
4422 /* make sure rfkill handshake bits are cleared */
3395f6e9
TW		 4423 iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
4424 iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR,
b481de9c
ZY		 4425 CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED);
4426
4427 /* clear (again), then enable host interrupts */
3395f6e9 4428 iwl_write32(priv, CSR_INT, 0xFFFFFFFF);
bb8c093b 4429 iwl4965_enable_interrupts(priv);
b481de9c
ZY		 4430
4431 /* really make sure rfkill handshake bits are cleared */
3395f6e9
TW		 4432 iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
4433 iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
b481de9c
ZY		 4434
4435 /* Copy original ucode data image from disk into backup cache.
4436 * This will be used to initialize the on-board processor's
4437 * data SRAM for a clean start when the runtime program first loads. */
4438 memcpy(priv->ucode_data_backup.v_addr, priv->ucode_data.v_addr,
5a66926a 4439 priv->ucode_data.len);
b481de9c 4440
e655b9f0
ZY		 4441 /* We return success when we resume from suspend and rf_kill is on. */
4442 if (test_bit(STATUS_RF_KILL_HW, &priv->status))
b481de9c 4443 return 0;
b481de9c
ZY		 4444
4445 for (i = 0; i < MAX_HW_RESTARTS; i++) {
4446
bf85ea4f 4447 iwlcore_clear_stations_table(priv);
b481de9c
ZY		 4448
4449 /* load bootstrap state machine,
4450 * load bootstrap program into processor's memory,
4451 * prepare to load the "initialize" uCode */
57aab75a 4452 ret = priv->cfg->ops->lib->load_ucode(priv);
b481de9c 4453
57aab75a
TW		 4454 if (ret) {
4455 IWL_ERROR("Unable to set up bootstrap uCode: %d\n", ret);
b481de9c
ZY		 4456 continue;
4457 }
4458
4459 /* start card; "initialize" will load runtime ucode */
edcdf8b2 4460 iwl4965_nic_start(priv);
b481de9c 4461
b481de9c
ZY		 4462 IWL_DEBUG_INFO(DRV_NAME " is coming up\n");
4463
4464 return 0;
4465 }
4466
4467 set_bit(STATUS_EXIT_PENDING, &priv->status);
bb8c093b 4468 __iwl4965_down(priv);
b481de9c
ZY		 4469
4470 /* tried to restart and config the device for as long as our
4471 * patience could withstand */
4472 IWL_ERROR("Unable to initialize device after %d attempts.\n", i);
4473 return -EIO;
4474}
4475
4476
4477/*****************************************************************************
4478 *
4479 * Workqueue callbacks
4480 *
4481 *****************************************************************************/
4482
bb8c093b 4483static void iwl4965_bg_init_alive_start(struct work_struct *data)
b481de9c 4484{
c79dd5b5
TW		 4485 struct iwl_priv *priv =
4486 container_of(data, struct iwl_priv, init_alive_start.work);
b481de9c
ZY		 4487
4488 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
4489 return;
4490
4491 mutex_lock(&priv->mutex);
f3ccc08c 4492 priv->cfg->ops->lib->init_alive_start(priv);
b481de9c
ZY		 4493 mutex_unlock(&priv->mutex);
4494}
4495
bb8c093b 4496static void iwl4965_bg_alive_start(struct work_struct *data)
b481de9c 4497{
c79dd5b5
TW		 4498 struct iwl_priv *priv =
4499 container_of(data, struct iwl_priv, alive_start.work);
b481de9c
ZY		 4500
4501 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
4502 return;
4503
4504 mutex_lock(&priv->mutex);
bb8c093b 4505 iwl4965_alive_start(priv);
b481de9c
ZY		 4506 mutex_unlock(&priv->mutex);
4507}
4508
bb8c093b 4509static void iwl4965_bg_rf_kill(struct work_struct *work)
b481de9c 4510{
c79dd5b5 4511 struct iwl_priv *priv = container_of(work, struct iwl_priv, rf_kill);
b481de9c
ZY		 4512
4513 wake_up_interruptible(&priv->wait_command_queue);
4514
4515 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
4516 return;
4517
4518 mutex_lock(&priv->mutex);
4519
fee1247a 4520 if (!iwl_is_rfkill(priv)) {
f3d67999 4521 IWL_DEBUG(IWL_DL_RF_KILL,
b481de9c
ZY		 4522 "HW and/or SW RF Kill no longer active, restarting "
4523 "device\n");
4524 if (!test_bit(STATUS_EXIT_PENDING, &priv->status))
4525 queue_work(priv->workqueue, &priv->restart);
4526 } else {
ad97edd2
MA		 4527 /* make sure mac80211 stop sending Tx frame */
4528 if (priv->mac80211_registered)
4529 ieee80211_stop_queues(priv->hw);
b481de9c
ZY		 4530
4531 if (!test_bit(STATUS_RF_KILL_HW, &priv->status))
4532 IWL_DEBUG_RF_KILL("Can not turn radio back on - "
4533 "disabled by SW switch\n");
4534 else
4535 IWL_WARNING("Radio Frequency Kill Switch is On:\n"
4536 "Kill switch must be turned off for "
4537 "wireless networking to work.\n");
4538 }
ad97edd2
MA		 4539 iwl_rfkill_set_hw_state(priv);
4540
b481de9c
ZY		 4541 mutex_unlock(&priv->mutex);
4542}
4543
4419e39b
AK		 4544static void iwl4965_bg_set_monitor(struct work_struct *work)
4545{
4546 struct iwl_priv *priv = container_of(work,
4547 struct iwl_priv, set_monitor);
4548
4549 IWL_DEBUG(IWL_DL_STATE, "setting monitor mode\n");
4550
4551 mutex_lock(&priv->mutex);
4552
4553 if (!iwl_is_ready(priv))
4554 IWL_DEBUG(IWL_DL_STATE, "leave - not ready\n");
4555 else
4556 if (iwl4965_set_mode(priv, IEEE80211_IF_TYPE_MNTR) != 0)
4557 IWL_ERROR("iwl4965_set_mode() failed\n");
4558
4559 mutex_unlock(&priv->mutex);
4560}
4561
b481de9c
ZY		 4562#define IWL_SCAN_CHECK_WATCHDOG (7 * HZ)
4563
bb8c093b 4564static void iwl4965_bg_scan_check(struct work_struct *data)
b481de9c 4565{
c79dd5b5
TW		 4566 struct iwl_priv *priv =
4567 container_of(data, struct iwl_priv, scan_check.work);
b481de9c
ZY		 4568
4569 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
4570 return;
4571
4572 mutex_lock(&priv->mutex);
4573 if (test_bit(STATUS_SCANNING, &priv->status) ||
4574 test_bit(STATUS_SCAN_ABORTING, &priv->status)) {
f3d67999
EK		 4575 IWL_DEBUG(IWL_DL_SCAN, "Scan completion watchdog resetting "
4576 "adapter (%dms)\n",
4577 jiffies_to_msecs(IWL_SCAN_CHECK_WATCHDOG));
052c4b9f 4578
b481de9c 4579 if (!test_bit(STATUS_EXIT_PENDING, &priv->status))
bb8c093b 4580 iwl4965_send_scan_abort(priv);
b481de9c
ZY		 4581 }
4582 mutex_unlock(&priv->mutex);
4583}
4584
bb8c093b 4585static void iwl4965_bg_request_scan(struct work_struct *data)
b481de9c 4586{
c79dd5b5
TW		 4587 struct iwl_priv *priv =
4588 container_of(data, struct iwl_priv, request_scan);
857485c0 4589 struct iwl_host_cmd cmd = {
b481de9c 4590 .id = REPLY_SCAN_CMD,
bb8c093b 4591 .len = sizeof(struct iwl4965_scan_cmd),
b481de9c
ZY		 4592 .meta.flags = CMD_SIZE_HUGE,
4593 };
bb8c093b 4594 struct iwl4965_scan_cmd *scan;
b481de9c 4595 struct ieee80211_conf *conf = NULL;
78330fdd 4596 u16 cmd_len;
8318d78a 4597 enum ieee80211_band band;
78330fdd 4598 u8 direct_mask;
857485c0 4599 int ret = 0;
b481de9c
ZY		 4600
4601 conf = ieee80211_get_hw_conf(priv->hw);
4602
4603 mutex_lock(&priv->mutex);
4604
fee1247a 4605 if (!iwl_is_ready(priv)) {
b481de9c
ZY		 4606 IWL_WARNING("request scan called when driver not ready.\n");
4607 goto done;
4608 }
4609
4610 /* Make sure the scan wasn't cancelled before this queued work
4611 * was given the chance to run... */
4612 if (!test_bit(STATUS_SCANNING, &priv->status))
4613 goto done;
4614
4615 /* This should never be called or scheduled if there is currently
4616 * a scan active in the hardware. */
4617 if (test_bit(STATUS_SCAN_HW, &priv->status)) {
4618 IWL_DEBUG_INFO("Multiple concurrent scan requests in parallel. "
4619 "Ignoring second request.\n");
857485c0 4620 ret = -EIO;
b481de9c
ZY		 4621 goto done;
4622 }
4623
4624 if (test_bit(STATUS_EXIT_PENDING, &priv->status)) {
4625 IWL_DEBUG_SCAN("Aborting scan due to device shutdown\n");
4626 goto done;
4627 }
4628
4629 if (test_bit(STATUS_SCAN_ABORTING, &priv->status)) {
4630 IWL_DEBUG_HC("Scan request while abort pending. Queuing.\n");
4631 goto done;
4632 }
4633
fee1247a 4634 if (iwl_is_rfkill(priv)) {
b481de9c
ZY		 4635 IWL_DEBUG_HC("Aborting scan due to RF Kill activation\n");
4636 goto done;
4637 }
4638
4639 if (!test_bit(STATUS_READY, &priv->status)) {
4640 IWL_DEBUG_HC("Scan request while uninitialized. Queuing.\n");
4641 goto done;
4642 }
4643
4644 if (!priv->scan_bands) {
4645 IWL_DEBUG_HC("Aborting scan due to no requested bands\n");
4646 goto done;
4647 }
4648
4649 if (!priv->scan) {
bb8c093b 4650 priv->scan = kmalloc(sizeof(struct iwl4965_scan_cmd) +
b481de9c
ZY		 4651 IWL_MAX_SCAN_SIZE, GFP_KERNEL);
4652 if (!priv->scan) {
857485c0 4653 ret = -ENOMEM;
b481de9c
ZY		 4654 goto done;
4655 }
4656 }
4657 scan = priv->scan;
bb8c093b 4658 memset(scan, 0, sizeof(struct iwl4965_scan_cmd) + IWL_MAX_SCAN_SIZE);
b481de9c
ZY		 4659
4660 scan->quiet_plcp_th = IWL_PLCP_QUIET_THRESH;
4661 scan->quiet_time = IWL_ACTIVE_QUIET_TIME;
4662
3109ece1 4663 if (iwl_is_associated(priv)) {
b481de9c
ZY		 4664 u16 interval = 0;
4665 u32 extra;
4666 u32 suspend_time = 100;
4667 u32 scan_suspend_time = 100;
4668 unsigned long flags;
4669
4670 IWL_DEBUG_INFO("Scanning while associated...\n");
4671
4672 spin_lock_irqsave(&priv->lock, flags);
4673 interval = priv->beacon_int;
4674 spin_unlock_irqrestore(&priv->lock, flags);
4675
4676 scan->suspend_time = 0;
052c4b9f 4677 scan->max_out_time = cpu_to_le32(200 * 1024);
b481de9c
ZY		 4678 if (!interval)
4679 interval = suspend_time;
4680
4681 extra = (suspend_time / interval) << 22;
4682 scan_suspend_time = (extra |
4683 ((suspend_time % interval) * 1024));
4684 scan->suspend_time = cpu_to_le32(scan_suspend_time);
4685 IWL_DEBUG_SCAN("suspend_time 0x%X beacon interval %d\n",
4686 scan_suspend_time, interval);
4687 }
4688
4689 /* We should add the ability for user to lock to PASSIVE ONLY */
4690 if (priv->one_direct_scan) {
4691 IWL_DEBUG_SCAN
4692 ("Kicking off one direct scan for '%s'\n",
bb8c093b 4693 iwl4965_escape_essid(priv->direct_ssid,
b481de9c
ZY		 4694 priv->direct_ssid_len));
4695 scan->direct_scan[0].id = WLAN_EID_SSID;
4696 scan->direct_scan[0].len = priv->direct_ssid_len;
4697 memcpy(scan->direct_scan[0].ssid,
4698 priv->direct_ssid, priv->direct_ssid_len);
4699 direct_mask = 1;
3109ece1 4700 } else if (!iwl_is_associated(priv) && priv->essid_len) {
786b4557
BM		 4701 IWL_DEBUG_SCAN
4702 ("Kicking off one direct scan for '%s' when not associated\n",
4703 iwl4965_escape_essid(priv->essid, priv->essid_len));
b481de9c
ZY		 4704 scan->direct_scan[0].id = WLAN_EID_SSID;
4705 scan->direct_scan[0].len = priv->essid_len;
4706 memcpy(scan->direct_scan[0].ssid, priv->essid, priv->essid_len);
4707 direct_mask = 1;
857485c0 4708 } else {
786b4557 4709 IWL_DEBUG_SCAN("Kicking off one indirect scan.\n");
b481de9c 4710 direct_mask = 0;
857485c0 4711 }
b481de9c 4712
b481de9c 4713 scan->tx_cmd.tx_flags = TX_CMD_FLG_SEQ_CTL_MSK;
5425e490 4714 scan->tx_cmd.sta_id = priv->hw_params.bcast_sta_id;
b481de9c
ZY		 4715 scan->tx_cmd.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE;
4716
b481de9c
ZY		 4717
4718 switch (priv->scan_bands) {
4719 case 2:
4720 scan->flags = RXON_FLG_BAND_24G_MSK | RXON_FLG_AUTO_DETECT_MSK;
4721 scan->tx_cmd.rate_n_flags =
bb8c093b 4722 iwl4965_hw_set_rate_n_flags(IWL_RATE_1M_PLCP,
b481de9c
ZY		 4723 RATE_MCS_ANT_B_MSK|RATE_MCS_CCK_MSK);
4724
4725 scan->good_CRC_th = 0;
8318d78a 4726 band = IEEE80211_BAND_2GHZ;
b481de9c
ZY		 4727 break;
4728
4729 case 1:
4730 scan->tx_cmd.rate_n_flags =
bb8c093b 4731 iwl4965_hw_set_rate_n_flags(IWL_RATE_6M_PLCP,
b481de9c
ZY		 4732 RATE_MCS_ANT_B_MSK);
4733 scan->good_CRC_th = IWL_GOOD_CRC_TH;
8318d78a 4734 band = IEEE80211_BAND_5GHZ;
b481de9c
ZY		 4735 break;
4736
4737 default:
4738 IWL_WARNING("Invalid scan band count\n");
4739 goto done;
4740 }
4741
78330fdd
TW		 4742 /* We don't build a direct scan probe request; the uCode will do
4743 * that based on the direct_mask added to each channel entry */
4744 cmd_len = iwl4965_fill_probe_req(priv, band,
4745 (struct ieee80211_mgmt *)scan->data,
4746 IWL_MAX_SCAN_SIZE - sizeof(*scan), 0);
4747
4748 scan->tx_cmd.len = cpu_to_le16(cmd_len);
b481de9c
ZY		 4749 /* select Rx chains */
4750
4751 /* Force use of chains B and C (0x6) for scan Rx.
4752 * Avoid A (0x1) because of its off-channel reception on A-band.
4753 * MIMO is not used here, but value is required to make uCode happy. */
4754 scan->rx_chain = RXON_RX_CHAIN_DRIVER_FORCE_MSK |
4755 cpu_to_le16((0x7 << RXON_RX_CHAIN_VALID_POS) |
4756 (0x6 << RXON_RX_CHAIN_FORCE_SEL_POS) |
4757 (0x7 << RXON_RX_CHAIN_FORCE_MIMO_SEL_POS));
4758
4759 if (priv->iw_mode == IEEE80211_IF_TYPE_MNTR)
4760 scan->filter_flags = RXON_FILTER_PROMISC_MSK;
4761
786b4557 4762 if (direct_mask)
26c0f03f
RC		 4763 scan->channel_count =
4764 iwl4965_get_channels_for_scan(
4765 priv, band, 1, /* active */
4766 direct_mask,
4767 (void *)&scan->data[le16_to_cpu(scan->tx_cmd.len)]);
786b4557 4768 else
26c0f03f
RC		 4769 scan->channel_count =
4770 iwl4965_get_channels_for_scan(
4771 priv, band, 0, /* passive */
4772 direct_mask,
4773 (void *)&scan->data[le16_to_cpu(scan->tx_cmd.len)]);
b481de9c 4774
5da4b55f
MA		 4775 scan->filter_flags |= (RXON_FILTER_ACCEPT_GRP_MSK |
4776 RXON_FILTER_BCON_AWARE_MSK);
b481de9c 4777 cmd.len += le16_to_cpu(scan->tx_cmd.len) +
bb8c093b 4778 scan->channel_count * sizeof(struct iwl4965_scan_channel);
b481de9c
ZY		 4779 cmd.data = scan;
4780 scan->len = cpu_to_le16(cmd.len);
4781
4782 set_bit(STATUS_SCAN_HW, &priv->status);
857485c0
TW		 4783 ret = iwl_send_cmd_sync(priv, &cmd);
4784 if (ret)
b481de9c
ZY		 4785 goto done;
4786
4787 queue_delayed_work(priv->workqueue, &priv->scan_check,
4788 IWL_SCAN_CHECK_WATCHDOG);
4789
4790 mutex_unlock(&priv->mutex);
4791 return;
4792
4793 done:
01ebd063 4794 /* inform mac80211 scan aborted */
b481de9c
ZY		 4795 queue_work(priv->workqueue, &priv->scan_completed);
4796 mutex_unlock(&priv->mutex);
4797}
4798
bb8c093b 4799static void iwl4965_bg_up(struct work_struct *data)
b481de9c 4800{
c79dd5b5 4801 struct iwl_priv *priv = container_of(data, struct iwl_priv, up);
b481de9c
ZY		 4802
4803 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
4804 return;
4805
4806 mutex_lock(&priv->mutex);
bb8c093b 4807 __iwl4965_up(priv);
b481de9c
ZY		 4808 mutex_unlock(&priv->mutex);
4809}
4810
bb8c093b 4811static void iwl4965_bg_restart(struct work_struct *data)
b481de9c 4812{
c79dd5b5 4813 struct iwl_priv *priv = container_of(data, struct iwl_priv, restart);
b481de9c
ZY		 4814
4815 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
4816 return;
4817
bb8c093b 4818 iwl4965_down(priv);
b481de9c
ZY		 4819 queue_work(priv->workqueue, &priv->up);
4820}
4821
bb8c093b 4822static void iwl4965_bg_rx_replenish(struct work_struct *data)
b481de9c 4823{
c79dd5b5
TW		 4824 struct iwl_priv *priv =
4825 container_of(data, struct iwl_priv, rx_replenish);
b481de9c
ZY		 4826
4827 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
4828 return;
4829
4830 mutex_lock(&priv->mutex);
a55360e4 4831 iwl_rx_replenish(priv);
b481de9c
ZY		 4832 mutex_unlock(&priv->mutex);
4833}
4834
7878a5a4
MA		 4835#define IWL_DELAY_NEXT_SCAN (HZ*2)
4836
508e32e1 4837static void iwl4965_post_associate(struct iwl_priv *priv)
b481de9c 4838{
b481de9c 4839 struct ieee80211_conf *conf = NULL;
857485c0 4840 int ret = 0;
0795af57 4841 DECLARE_MAC_BUF(mac);
b481de9c
ZY		 4842
4843 if (priv->iw_mode == IEEE80211_IF_TYPE_AP) {
4844 IWL_ERROR("%s Should not be called in AP mode\n", __FUNCTION__);
4845 return;
4846 }
4847
0795af57
JP		 4848 IWL_DEBUG_ASSOC("Associated as %d to: %s\n",
4849 priv->assoc_id,
4850 print_mac(mac, priv->active_rxon.bssid_addr));
b481de9c
ZY		 4851
4852
4853 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
4854 return;
4855
b481de9c 4856
508e32e1 4857 if (!priv->vif || !priv->is_open)
948c171c 4858 return;
508e32e1 4859
bb8c093b 4860 iwl4965_scan_cancel_timeout(priv, 200);
052c4b9f 4861
b481de9c
ZY		 4862 conf = ieee80211_get_hw_conf(priv->hw);
4863
4864 priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
bb8c093b 4865 iwl4965_commit_rxon(priv);
b481de9c 4866
bb8c093b
CH		 4867 memset(&priv->rxon_timing, 0, sizeof(struct iwl4965_rxon_time_cmd));
4868 iwl4965_setup_rxon_timing(priv);
857485c0 4869 ret = iwl_send_cmd_pdu(priv, REPLY_RXON_TIMING,
b481de9c 4870 sizeof(priv->rxon_timing), &priv->rxon_timing);
857485c0 4871 if (ret)
b481de9c
ZY		 4872 IWL_WARNING("REPLY_RXON_TIMING failed - "
4873 "Attempting to continue.\n");
4874
4875 priv->staging_rxon.filter_flags |= RXON_FILTER_ASSOC_MSK;
4876
c8b0e6e1 4877#ifdef CONFIG_IWL4965_HT
fd105e79 4878 if (priv->current_ht_config.is_ht)
47c5196e 4879 iwl_set_rxon_ht(priv, &priv->current_ht_config);
c8b0e6e1 4880#endif /* CONFIG_IWL4965_HT*/
c7de35cd 4881 iwl_set_rxon_chain(priv);
b481de9c
ZY		 4882 priv->staging_rxon.assoc_id = cpu_to_le16(priv->assoc_id);
4883
4884 IWL_DEBUG_ASSOC("assoc id %d beacon interval %d\n",
4885 priv->assoc_id, priv->beacon_int);
4886
4887 if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_PREAMBLE)
4888 priv->staging_rxon.flags |= RXON_FLG_SHORT_PREAMBLE_MSK;
4889 else
4890 priv->staging_rxon.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK;
4891
4892 if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) {
4893 if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_SLOT_TIME)
4894 priv->staging_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK;
4895 else
4896 priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK;
4897
4898 if (priv->iw_mode == IEEE80211_IF_TYPE_IBSS)
4899 priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK;
4900
4901 }
4902
bb8c093b 4903 iwl4965_commit_rxon(priv);
b481de9c
ZY		 4904
4905 switch (priv->iw_mode) {
4906 case IEEE80211_IF_TYPE_STA:
bb8c093b 4907 iwl4965_rate_scale_init(priv->hw, IWL_AP_ID);
b481de9c
ZY		 4908 break;
4909
4910 case IEEE80211_IF_TYPE_IBSS:
4911
4912 /* clear out the station table */
bf85ea4f 4913 iwlcore_clear_stations_table(priv);
b481de9c 4914
bb8c093b
CH		 4915 iwl4965_rxon_add_station(priv, iwl4965_broadcast_addr, 0);
4916 iwl4965_rxon_add_station(priv, priv->bssid, 0);
4917 iwl4965_rate_scale_init(priv->hw, IWL_STA_ID);
4918 iwl4965_send_beacon_cmd(priv);
b481de9c
ZY		 4919
4920 break;
4921
4922 default:
4923 IWL_ERROR("%s Should not be called in %d mode\n",
4924 __FUNCTION__, priv->iw_mode);
4925 break;
4926 }
4927
bb8c093b 4928 iwl4965_sequence_reset(priv);
b481de9c 4929
b481de9c 4930 /* Enable Rx differential gain and sensitivity calibrations */
f0832f13 4931 iwl_chain_noise_reset(priv);
b481de9c 4932 priv->start_calib = 1;
b481de9c
ZY		 4933
4934 if (priv->iw_mode == IEEE80211_IF_TYPE_IBSS)
4935 priv->assoc_station_added = 1;
4936
bb8c093b 4937 iwl4965_activate_qos(priv, 0);
292ae174 4938
5da4b55f 4939 iwl_power_update_mode(priv, 0);
7878a5a4
MA		 4940 /* we have just associated, don't start scan too early */
4941 priv->next_scan_jiffies = jiffies + IWL_DELAY_NEXT_SCAN;
508e32e1
RC		 4942}
4943
4944
4945static void iwl4965_bg_post_associate(struct work_struct *data)
4946{
4947 struct iwl_priv *priv = container_of(data, struct iwl_priv,
4948 post_associate.work);
4949
4950 mutex_lock(&priv->mutex);
4951 iwl4965_post_associate(priv);
b481de9c 4952 mutex_unlock(&priv->mutex);
508e32e1 4953
b481de9c
ZY		 4954}
4955
bb8c093b 4956static void iwl4965_bg_abort_scan(struct work_struct *work)
b481de9c 4957{
c79dd5b5 4958 struct iwl_priv *priv = container_of(work, struct iwl_priv, abort_scan);
b481de9c 4959
fee1247a 4960 if (!iwl_is_ready(priv))
b481de9c
ZY		 4961 return;
4962
4963 mutex_lock(&priv->mutex);
4964
4965 set_bit(STATUS_SCAN_ABORTING, &priv->status);
bb8c093b 4966 iwl4965_send_scan_abort(priv);
b481de9c
ZY		 4967
4968 mutex_unlock(&priv->mutex);
4969}
4970
76bb77e0
ZY		 4971static int iwl4965_mac_config(struct ieee80211_hw *hw, struct ieee80211_conf *conf);
4972
bb8c093b 4973static void iwl4965_bg_scan_completed(struct work_struct *work)
b481de9c 4974{
c79dd5b5
TW		 4975 struct iwl_priv *priv =
4976 container_of(work, struct iwl_priv, scan_completed);
b481de9c 4977
f3d67999 4978 IWL_DEBUG(IWL_DL_SCAN, "SCAN complete scan\n");
b481de9c
ZY		 4979
4980 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
4981 return;
4982
a0646470
ZY		 4983 if (test_bit(STATUS_CONF_PENDING, &priv->status))
4984 iwl4965_mac_config(priv->hw, ieee80211_get_hw_conf(priv->hw));
76bb77e0 4985
b481de9c
ZY		 4986 ieee80211_scan_completed(priv->hw);
4987
4988 /* Since setting the TXPOWER may have been deferred while
4989 * performing the scan, fire one off */
4990 mutex_lock(&priv->mutex);
bb8c093b 4991 iwl4965_hw_reg_send_txpower(priv);
b481de9c
ZY		 4992 mutex_unlock(&priv->mutex);
4993}
4994
4995/*****************************************************************************
4996 *
4997 * mac80211 entry point functions
4998 *
4999 *****************************************************************************/
5000
5a66926a
ZY		 5001#define UCODE_READY_TIMEOUT (2 * HZ)
5002
bb8c093b 5003static int iwl4965_mac_start(struct ieee80211_hw *hw)
b481de9c 5004{
c79dd5b5 5005 struct iwl_priv *priv = hw->priv;
5a66926a 5006 int ret;
b481de9c
ZY		 5007
5008 IWL_DEBUG_MAC80211("enter\n");
5009
5a66926a
ZY		 5010 if (pci_enable_device(priv->pci_dev)) {
5011 IWL_ERROR("Fail to pci_enable_device\n");
5012 return -ENODEV;
5013 }
5014 pci_restore_state(priv->pci_dev);
5015 pci_enable_msi(priv->pci_dev);
5016
5017 ret = request_irq(priv->pci_dev->irq, iwl4965_isr, IRQF_SHARED,
5018 DRV_NAME, priv);
5019 if (ret) {
5020 IWL_ERROR("Error allocating IRQ %d\n", priv->pci_dev->irq);
5021 goto out_disable_msi;
5022 }
5023
b481de9c
ZY		 5024 /* we should be verifying the device is ready to be opened */
5025 mutex_lock(&priv->mutex);
5026
c1adf9fb 5027 memset(&priv->staging_rxon, 0, sizeof(struct iwl_rxon_cmd));
5a66926a
ZY		 5028 /* fetch ucode file from disk, alloc and copy to bus-master buffers ...
5029 * ucode filename and max sizes are card-specific. */
b481de9c 5030
5a66926a
ZY		 5031 if (!priv->ucode_code.len) {
5032 ret = iwl4965_read_ucode(priv);
5033 if (ret) {
5034 IWL_ERROR("Could not read microcode: %d\n", ret);
5035 mutex_unlock(&priv->mutex);
5036 goto out_release_irq;
5037 }
5038 }
b481de9c 5039
e655b9f0 5040 ret = __iwl4965_up(priv);
5a66926a 5041
b481de9c 5042 mutex_unlock(&priv->mutex);
5a66926a 5043
e655b9f0
ZY		 5044 if (ret)
5045 goto out_release_irq;
5046
5047 IWL_DEBUG_INFO("Start UP work done.\n");
5048
5049 if (test_bit(STATUS_IN_SUSPEND, &priv->status))
5050 return 0;
5051
5a66926a
ZY		 5052 /* Wait for START_ALIVE from ucode. Otherwise callbacks from
5053 * mac80211 will not be run successfully. */
5054 ret = wait_event_interruptible_timeout(priv->wait_command_queue,
5055 test_bit(STATUS_READY, &priv->status),
5056 UCODE_READY_TIMEOUT);
5057 if (!ret) {
5058 if (!test_bit(STATUS_READY, &priv->status)) {
5059 IWL_ERROR("Wait for START_ALIVE timeout after %dms.\n",
5060 jiffies_to_msecs(UCODE_READY_TIMEOUT));
5061 ret = -ETIMEDOUT;
5062 goto out_release_irq;
5063 }
5064 }
5065
e655b9f0 5066 priv->is_open = 1;
b481de9c
ZY		 5067 IWL_DEBUG_MAC80211("leave\n");
5068 return 0;
5a66926a
ZY		 5069
5070out_release_irq:
5071 free_irq(priv->pci_dev->irq, priv);
5072out_disable_msi:
5073 pci_disable_msi(priv->pci_dev);
e655b9f0
ZY		 5074 pci_disable_device(priv->pci_dev);
5075 priv->is_open = 0;
5076 IWL_DEBUG_MAC80211("leave - failed\n");
5a66926a 5077 return ret;
b481de9c
ZY		 5078}
5079
bb8c093b 5080static void iwl4965_mac_stop(struct ieee80211_hw *hw)
b481de9c 5081{
c79dd5b5 5082 struct iwl_priv *priv = hw->priv;
b481de9c
ZY		 5083
5084 IWL_DEBUG_MAC80211("enter\n");
948c171c 5085
e655b9f0
ZY		 5086 if (!priv->is_open) {
5087 IWL_DEBUG_MAC80211("leave - skip\n");
5088 return;
5089 }
5090
b481de9c 5091 priv->is_open = 0;
5a66926a 5092
fee1247a 5093 if (iwl_is_ready_rf(priv)) {
e655b9f0
ZY		 5094 /* stop mac, cancel any scan request and clear
5095 * RXON_FILTER_ASSOC_MSK BIT
5096 */
5a66926a
ZY		 5097 mutex_lock(&priv->mutex);
5098 iwl4965_scan_cancel_timeout(priv, 100);
5099 cancel_delayed_work(&priv->post_associate);
fde3571f 5100 mutex_unlock(&priv->mutex);
fde3571f
MA		 5101 }
5102
5a66926a
ZY		 5103 iwl4965_down(priv);
5104
5105 flush_workqueue(priv->workqueue);
5106 free_irq(priv->pci_dev->irq, priv);
5107 pci_disable_msi(priv->pci_dev);
5108 pci_save_state(priv->pci_dev);
5109 pci_disable_device(priv->pci_dev);
948c171c 5110
b481de9c 5111 IWL_DEBUG_MAC80211("leave\n");
b481de9c
ZY		 5112}
5113
bb8c093b 5114static int iwl4965_mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb,
b481de9c
ZY		 5115 struct ieee80211_tx_control *ctl)
5116{
c79dd5b5 5117 struct iwl_priv *priv = hw->priv;
b481de9c
ZY		 5118
5119 IWL_DEBUG_MAC80211("enter\n");
5120
5121 if (priv->iw_mode == IEEE80211_IF_TYPE_MNTR) {
5122 IWL_DEBUG_MAC80211("leave - monitor\n");
5123 return -1;
5124 }
5125
5126 IWL_DEBUG_TX("dev->xmit(%d bytes) at rate 0x%02x\n", skb->len,
8318d78a 5127 ctl->tx_rate->bitrate);
b481de9c 5128
bb8c093b 5129 if (iwl4965_tx_skb(priv, skb, ctl))
b481de9c
ZY		 5130 dev_kfree_skb_any(skb);
5131
5132 IWL_DEBUG_MAC80211("leave\n");
5133 return 0;
5134}
5135
bb8c093b 5136static int iwl4965_mac_add_interface(struct ieee80211_hw *hw,
b481de9c
ZY		 5137 struct ieee80211_if_init_conf *conf)
5138{
c79dd5b5 5139 struct iwl_priv *priv = hw->priv;
b481de9c 5140 unsigned long flags;
0795af57 5141 DECLARE_MAC_BUF(mac);
b481de9c 5142
32bfd35d 5143 IWL_DEBUG_MAC80211("enter: type %d\n", conf->type);
b481de9c 5144
32bfd35d
JB		 5145 if (priv->vif) {
5146 IWL_DEBUG_MAC80211("leave - vif != NULL\n");
75849d28 5147 return -EOPNOTSUPP;
b481de9c
ZY		 5148 }
5149
5150 spin_lock_irqsave(&priv->lock, flags);
32bfd35d 5151 priv->vif = conf->vif;
b481de9c
ZY		 5152
5153 spin_unlock_irqrestore(&priv->lock, flags);
5154
5155 mutex_lock(&priv->mutex);
864792e3
TW		 5156
5157 if (conf->mac_addr) {
5158 IWL_DEBUG_MAC80211("Set %s\n", print_mac(mac, conf->mac_addr));
5159 memcpy(priv->mac_addr, conf->mac_addr, ETH_ALEN);
5160 }
b481de9c 5161
fee1247a 5162 if (iwl_is_ready(priv))
5a66926a
ZY		 5163 iwl4965_set_mode(priv, conf->type);
5164
b481de9c
ZY		 5165 mutex_unlock(&priv->mutex);
5166
5a66926a 5167 IWL_DEBUG_MAC80211("leave\n");
b481de9c
ZY		 5168 return 0;
5169}
5170
5171/**
bb8c093b 5172 * iwl4965_mac_config - mac80211 config callback
b481de9c
ZY		 5173 *
5174 * We ignore conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME since it seems to
5175 * be set inappropriately and the driver currently sets the hardware up to
5176 * use it whenever needed.
5177 */
bb8c093b 5178static int iwl4965_mac_config(struct ieee80211_hw *hw, struct ieee80211_conf *conf)
b481de9c 5179{
c79dd5b5 5180 struct iwl_priv *priv = hw->priv;
bf85ea4f 5181 const struct iwl_channel_info *ch_info;
b481de9c 5182 unsigned long flags;
76bb77e0 5183 int ret = 0;
b481de9c
ZY		 5184
5185 mutex_lock(&priv->mutex);
8318d78a 5186 IWL_DEBUG_MAC80211("enter to channel %d\n", conf->channel->hw_value);
b481de9c 5187
12342c47
ZY		 5188 priv->add_radiotap = !!(conf->flags & IEEE80211_CONF_RADIOTAP);
5189
fee1247a 5190 if (!iwl_is_ready(priv)) {
b481de9c 5191 IWL_DEBUG_MAC80211("leave - not ready\n");
76bb77e0
ZY		 5192 ret = -EIO;
5193 goto out;
b481de9c
ZY		 5194 }
5195
1ea87396 5196 if (unlikely(!priv->cfg->mod_params->disable_hw_scan &&
b481de9c 5197 test_bit(STATUS_SCANNING, &priv->status))) {
a0646470
ZY		 5198 IWL_DEBUG_MAC80211("leave - scanning\n");
5199 set_bit(STATUS_CONF_PENDING, &priv->status);
b481de9c 5200 mutex_unlock(&priv->mutex);
a0646470 5201 return 0;
b481de9c
ZY		 5202 }
5203
5204 spin_lock_irqsave(&priv->lock, flags);
5205
8622e705 5206 ch_info = iwl_get_channel_info(priv, conf->channel->band,
8318d78a 5207 ieee80211_frequency_to_channel(conf->channel->center_freq));
b481de9c 5208 if (!is_channel_valid(ch_info)) {
b481de9c
ZY		 5209 IWL_DEBUG_MAC80211("leave - invalid channel\n");
5210 spin_unlock_irqrestore(&priv->lock, flags);
76bb77e0
ZY		 5211 ret = -EINVAL;
5212 goto out;
b481de9c
ZY		 5213 }
5214
c8b0e6e1 5215#ifdef CONFIG_IWL4965_HT
78330fdd 5216 /* if we are switching from ht to 2.4 clear flags
b481de9c
ZY		 5217 * from any ht related info since 2.4 does not
5218 * support ht */
78330fdd 5219 if ((le16_to_cpu(priv->staging_rxon.channel) != conf->channel->hw_value)
b481de9c
ZY		 5220#ifdef IEEE80211_CONF_CHANNEL_SWITCH
5221 && !(conf->flags & IEEE80211_CONF_CHANNEL_SWITCH)
5222#endif
5223 )
5224 priv->staging_rxon.flags = 0;
c8b0e6e1 5225#endif /* CONFIG_IWL4965_HT */
b481de9c 5226
c7de35cd 5227 iwl_set_rxon_channel(priv, conf->channel->band,
8318d78a 5228 ieee80211_frequency_to_channel(conf->channel->center_freq));
b481de9c 5229
8318d78a 5230 iwl4965_set_flags_for_phymode(priv, conf->channel->band);
b481de9c
ZY		 5231
5232 /* The list of supported rates and rate mask can be different
8318d78a 5233 * for each band; since the band may have changed, reset
b481de9c 5234 * the rate mask to what mac80211 lists */
bb8c093b 5235 iwl4965_set_rate(priv);
b481de9c
ZY		 5236
5237 spin_unlock_irqrestore(&priv->lock, flags);
5238
5239#ifdef IEEE80211_CONF_CHANNEL_SWITCH
5240 if (conf->flags & IEEE80211_CONF_CHANNEL_SWITCH) {
bb8c093b 5241 iwl4965_hw_channel_switch(priv, conf->channel);
76bb77e0 5242 goto out;
b481de9c
ZY		 5243 }
5244#endif
5245
ad97edd2
MA		 5246 if (priv->cfg->ops->lib->radio_kill_sw)
5247 priv->cfg->ops->lib->radio_kill_sw(priv, !conf->radio_enabled);
b481de9c
ZY		 5248
5249 if (!conf->radio_enabled) {
5250 IWL_DEBUG_MAC80211("leave - radio disabled\n");
76bb77e0 5251 goto out;
b481de9c
ZY		 5252 }
5253
fee1247a 5254 if (iwl_is_rfkill(priv)) {
b481de9c 5255 IWL_DEBUG_MAC80211("leave - RF kill\n");
76bb77e0
ZY		 5256 ret = -EIO;
5257 goto out;
b481de9c
ZY		 5258 }
5259
bb8c093b 5260 iwl4965_set_rate(priv);
b481de9c
ZY		 5261
5262 if (memcmp(&priv->active_rxon,
5263 &priv->staging_rxon, sizeof(priv->staging_rxon)))
bb8c093b 5264 iwl4965_commit_rxon(priv);
b481de9c
ZY		 5265 else
5266 IWL_DEBUG_INFO("No re-sending same RXON configuration.\n");
5267
5268 IWL_DEBUG_MAC80211("leave\n");
5269
a0646470
ZY		 5270out:
5271 clear_bit(STATUS_CONF_PENDING, &priv->status);
5a66926a 5272 mutex_unlock(&priv->mutex);
76bb77e0 5273 return ret;
b481de9c
ZY		 5274}
5275
c79dd5b5 5276static void iwl4965_config_ap(struct iwl_priv *priv)
b481de9c 5277{
857485c0 5278 int ret = 0;
b481de9c 5279
d986bcd1 5280 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
b481de9c
ZY		 5281 return;
5282
5283 /* The following should be done only at AP bring up */
5284 if ((priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) == 0) {
5285
5286 /* RXON - unassoc (to set timing command) */
5287 priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
bb8c093b 5288 iwl4965_commit_rxon(priv);
b481de9c
ZY		 5289
5290 /* RXON Timing */
bb8c093b
CH		 5291 memset(&priv->rxon_timing, 0, sizeof(struct iwl4965_rxon_time_cmd));
5292 iwl4965_setup_rxon_timing(priv);
857485c0 5293 ret = iwl_send_cmd_pdu(priv, REPLY_RXON_TIMING,
b481de9c 5294 sizeof(priv->rxon_timing), &priv->rxon_timing);
857485c0 5295 if (ret)
b481de9c
ZY		 5296 IWL_WARNING("REPLY_RXON_TIMING failed - "
5297 "Attempting to continue.\n");
5298
c7de35cd 5299 iwl_set_rxon_chain(priv);
b481de9c
ZY		 5300
5301 /* FIXME: what should be the assoc_id for AP? */
5302 priv->staging_rxon.assoc_id = cpu_to_le16(priv->assoc_id);
5303 if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_PREAMBLE)
5304 priv->staging_rxon.flags |=
5305 RXON_FLG_SHORT_PREAMBLE_MSK;
5306 else
5307 priv->staging_rxon.flags &=
5308 ~RXON_FLG_SHORT_PREAMBLE_MSK;
5309
5310 if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) {
5311 if (priv->assoc_capability &
5312 WLAN_CAPABILITY_SHORT_SLOT_TIME)
5313 priv->staging_rxon.flags |=
5314 RXON_FLG_SHORT_SLOT_MSK;
5315 else
5316 priv->staging_rxon.flags &=
5317 ~RXON_FLG_SHORT_SLOT_MSK;
5318
5319 if (priv->iw_mode == IEEE80211_IF_TYPE_IBSS)
5320 priv->staging_rxon.flags &=
5321 ~RXON_FLG_SHORT_SLOT_MSK;
5322 }
5323 /* restore RXON assoc */
5324 priv->staging_rxon.filter_flags |= RXON_FILTER_ASSOC_MSK;
bb8c093b 5325 iwl4965_commit_rxon(priv);
bb8c093b 5326 iwl4965_activate_qos(priv, 1);
bb8c093b 5327 iwl4965_rxon_add_station(priv, iwl4965_broadcast_addr, 0);
e1493deb 5328 }
bb8c093b 5329 iwl4965_send_beacon_cmd(priv);
b481de9c
ZY		 5330
5331 /* FIXME - we need to add code here to detect a totally new
5332 * configuration, reset the AP, unassoc, rxon timing, assoc,
5333 * clear sta table, add BCAST sta... */
5334}
5335
32bfd35d
JB		 5336static int iwl4965_mac_config_interface(struct ieee80211_hw *hw,
5337 struct ieee80211_vif *vif,
b481de9c
ZY		 5338 struct ieee80211_if_conf *conf)
5339{
c79dd5b5 5340 struct iwl_priv *priv = hw->priv;
0795af57 5341 DECLARE_MAC_BUF(mac);
b481de9c
ZY		 5342 unsigned long flags;
5343 int rc;
5344
5345 if (conf == NULL)
5346 return -EIO;
5347
b716bb91
EG		 5348 if (priv->vif != vif) {
5349 IWL_DEBUG_MAC80211("leave - priv->vif != vif\n");
b716bb91
EG		 5350 return 0;
5351 }
5352
b481de9c
ZY		 5353 if ((priv->iw_mode == IEEE80211_IF_TYPE_AP) &&
5354 (!conf->beacon || !conf->ssid_len)) {
5355 IWL_DEBUG_MAC80211
5356 ("Leaving in AP mode because HostAPD is not ready.\n");
5357 return 0;
5358 }
5359
fee1247a 5360 if (!iwl_is_alive(priv))
5a66926a
ZY		 5361 return -EAGAIN;
5362
b481de9c
ZY		 5363 mutex_lock(&priv->mutex);
5364
b481de9c 5365 if (conf->bssid)
0795af57
JP		 5366 IWL_DEBUG_MAC80211("bssid: %s\n",
5367 print_mac(mac, conf->bssid));
b481de9c 5368
4150c572
JB		 5369/*
5370 * very dubious code was here; the probe filtering flag is never set:
5371 *
b481de9c
ZY		 5372 if (unlikely(test_bit(STATUS_SCANNING, &priv->status)) &&
5373 !(priv->hw->flags & IEEE80211_HW_NO_PROBE_FILTERING)) {
4150c572 5374 */
b481de9c
ZY		 5375
5376 if (priv->iw_mode == IEEE80211_IF_TYPE_AP) {
5377 if (!conf->bssid) {
5378 conf->bssid = priv->mac_addr;
5379 memcpy(priv->bssid, priv->mac_addr, ETH_ALEN);
0795af57
JP		 5380 IWL_DEBUG_MAC80211("bssid was set to: %s\n",
5381 print_mac(mac, conf->bssid));
b481de9c
ZY		 5382 }
5383 if (priv->ibss_beacon)
5384 dev_kfree_skb(priv->ibss_beacon);
5385
5386 priv->ibss_beacon = conf->beacon;
5387 }
5388
fee1247a 5389 if (iwl_is_rfkill(priv))
fde3571f
MA		 5390 goto done;
5391
b481de9c
ZY		 5392 if (conf->bssid && !is_zero_ether_addr(conf->bssid) &&
5393 !is_multicast_ether_addr(conf->bssid)) {
5394 /* If there is currently a HW scan going on in the background
5395 * then we need to cancel it else the RXON below will fail. */
bb8c093b 5396 if (iwl4965_scan_cancel_timeout(priv, 100)) {
b481de9c
ZY		 5397 IWL_WARNING("Aborted scan still in progress "
5398 "after 100ms\n");
5399 IWL_DEBUG_MAC80211("leaving - scan abort failed.\n");
5400 mutex_unlock(&priv->mutex);
5401 return -EAGAIN;
5402 }
5403 memcpy(priv->staging_rxon.bssid_addr, conf->bssid, ETH_ALEN);
5404
5405 /* TODO: Audit driver for usage of these members and see
5406 * if mac80211 deprecates them (priv->bssid looks like it
5407 * shouldn't be there, but I haven't scanned the IBSS code
5408 * to verify) - jpk */
5409 memcpy(priv->bssid, conf->bssid, ETH_ALEN);
5410
5411 if (priv->iw_mode == IEEE80211_IF_TYPE_AP)
bb8c093b 5412 iwl4965_config_ap(priv);
b481de9c 5413 else {
bb8c093b 5414 rc = iwl4965_commit_rxon(priv);
b481de9c 5415 if ((priv->iw_mode == IEEE80211_IF_TYPE_STA) && rc)
bb8c093b 5416 iwl4965_rxon_add_station(
b481de9c
ZY		 5417 priv, priv->active_rxon.bssid_addr, 1);
5418 }
5419
5420 } else {
bb8c093b 5421 iwl4965_scan_cancel_timeout(priv, 100);
b481de9c 5422 priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
bb8c093b 5423 iwl4965_commit_rxon(priv);
b481de9c
ZY		 5424 }
5425
fde3571f 5426 done:
b481de9c
ZY		 5427 spin_lock_irqsave(&priv->lock, flags);
5428 if (!conf->ssid_len)
5429 memset(priv->essid, 0, IW_ESSID_MAX_SIZE);
5430 else
5431 memcpy(priv->essid, conf->ssid, conf->ssid_len);
5432
5433 priv->essid_len = conf->ssid_len;
5434 spin_unlock_irqrestore(&priv->lock, flags);
5435
5436 IWL_DEBUG_MAC80211("leave\n");
5437 mutex_unlock(&priv->mutex);
5438
5439 return 0;
5440}
5441
bb8c093b 5442static void iwl4965_configure_filter(struct ieee80211_hw *hw,
4150c572
JB		 5443 unsigned int changed_flags,
5444 unsigned int *total_flags,
5445 int mc_count, struct dev_addr_list *mc_list)
5446{
5447 /*
5448 * XXX: dummy
bb8c093b 5449 * see also iwl4965_connection_init_rx_config
4150c572 5450 */
4419e39b
AK		 5451 struct iwl_priv *priv = hw->priv;
5452 int new_flags = 0;
5453 if (changed_flags & (FIF_PROMISC_IN_BSS | FIF_OTHER_BSS)) {
5454 if (*total_flags & (FIF_PROMISC_IN_BSS | FIF_OTHER_BSS)) {
5455 IWL_DEBUG_MAC80211("Enter: type %d (0x%x, 0x%x)\n",
5456 IEEE80211_IF_TYPE_MNTR,
5457 changed_flags, *total_flags);
5458 /* queue work 'cuz mac80211 is holding a lock which
5459 * prevents us from issuing (synchronous) f/w cmds */
5460 queue_work(priv->workqueue, &priv->set_monitor);
5461 new_flags &= FIF_PROMISC_IN_BSS |
5462 FIF_OTHER_BSS |
5463 FIF_ALLMULTI;
5464 }
5465 }
5466 *total_flags = new_flags;
4150c572
JB		 5467}
5468
bb8c093b 5469static void iwl4965_mac_remove_interface(struct ieee80211_hw *hw,
b481de9c
ZY		 5470 struct ieee80211_if_init_conf *conf)
5471{
c79dd5b5 5472 struct iwl_priv *priv = hw->priv;
b481de9c
ZY		 5473
5474 IWL_DEBUG_MAC80211("enter\n");
5475
5476 mutex_lock(&priv->mutex);
948c171c 5477
fee1247a 5478 if (iwl_is_ready_rf(priv)) {
fde3571f
MA		 5479 iwl4965_scan_cancel_timeout(priv, 100);
5480 cancel_delayed_work(&priv->post_associate);
5481 priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
5482 iwl4965_commit_rxon(priv);
5483 }
32bfd35d
JB		 5484 if (priv->vif == conf->vif) {
5485 priv->vif = NULL;
b481de9c
ZY		 5486 memset(priv->bssid, 0, ETH_ALEN);
5487 memset(priv->essid, 0, IW_ESSID_MAX_SIZE);
5488 priv->essid_len = 0;
5489 }
5490 mutex_unlock(&priv->mutex);
5491
5492 IWL_DEBUG_MAC80211("leave\n");
5493
5494}
471b3efd 5495
3109ece1 5496#define IWL_DELAY_NEXT_SCAN_AFTER_ASSOC (HZ*6)
471b3efd
JB		 5497static void iwl4965_bss_info_changed(struct ieee80211_hw *hw,
5498 struct ieee80211_vif *vif,
5499 struct ieee80211_bss_conf *bss_conf,
5500 u32 changes)
220173b0 5501{
c79dd5b5 5502 struct iwl_priv *priv = hw->priv;
220173b0 5503
3109ece1
TW		 5504 IWL_DEBUG_MAC80211("changes = 0x%X\n", changes);
5505
471b3efd 5506 if (changes & BSS_CHANGED_ERP_PREAMBLE) {
3109ece1
TW		 5507 IWL_DEBUG_MAC80211("ERP_PREAMBLE %d\n",
5508 bss_conf->use_short_preamble);
471b3efd 5509 if (bss_conf->use_short_preamble)
220173b0
TW		 5510 priv->staging_rxon.flags |= RXON_FLG_SHORT_PREAMBLE_MSK;
5511 else
5512 priv->staging_rxon.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK;
5513 }
5514
471b3efd 5515 if (changes & BSS_CHANGED_ERP_CTS_PROT) {
3109ece1 5516 IWL_DEBUG_MAC80211("ERP_CTS %d\n", bss_conf->use_cts_prot);
8318d78a 5517 if (bss_conf->use_cts_prot && (priv->band != IEEE80211_BAND_5GHZ))
220173b0
TW		 5518 priv->staging_rxon.flags |= RXON_FLG_TGG_PROTECT_MSK;
5519 else
5520 priv->staging_rxon.flags &= ~RXON_FLG_TGG_PROTECT_MSK;
5521 }
5522
98952d5d 5523 if (changes & BSS_CHANGED_HT) {
3109ece1 5524 IWL_DEBUG_MAC80211("HT %d\n", bss_conf->assoc_ht);
98952d5d 5525 iwl4965_ht_conf(priv, bss_conf);
c7de35cd 5526 iwl_set_rxon_chain(priv);
98952d5d
TW		 5527 }
5528
471b3efd 5529 if (changes & BSS_CHANGED_ASSOC) {
3109ece1 5530 IWL_DEBUG_MAC80211("ASSOC %d\n", bss_conf->assoc);
508e32e1
RC		 5531 /* This should never happen as this function should
5532 * never be called from interrupt context. */
5533 if (WARN_ON_ONCE(in_interrupt()))
5534 return;
3109ece1
TW		 5535 if (bss_conf->assoc) {
5536 priv->assoc_id = bss_conf->aid;
5537 priv->beacon_int = bss_conf->beacon_int;
5538 priv->timestamp = bss_conf->timestamp;
5539 priv->assoc_capability = bss_conf->assoc_capability;
5540 priv->next_scan_jiffies = jiffies +
5541 IWL_DELAY_NEXT_SCAN_AFTER_ASSOC;
508e32e1
RC		 5542 mutex_lock(&priv->mutex);
5543 iwl4965_post_associate(priv);
5544 mutex_unlock(&priv->mutex);
3109ece1
TW		 5545 } else {
5546 priv->assoc_id = 0;
5547 IWL_DEBUG_MAC80211("DISASSOC %d\n", bss_conf->assoc);
5548 }
5549 } else if (changes && iwl_is_associated(priv) && priv->assoc_id) {
5550 IWL_DEBUG_MAC80211("Associated Changes %d\n", changes);
7e8c519e 5551 iwl_send_rxon_assoc(priv);
471b3efd
JB		 5552 }
5553
220173b0 5554}
b481de9c 5555
bb8c093b 5556static int iwl4965_mac_hw_scan(struct ieee80211_hw *hw, u8 *ssid, size_t len)
b481de9c
ZY		 5557{
5558 int rc = 0;
5559 unsigned long flags;
c79dd5b5 5560 struct iwl_priv *priv = hw->priv;
b481de9c
ZY		 5561
5562 IWL_DEBUG_MAC80211("enter\n");
5563
052c4b9f 5564 mutex_lock(&priv->mutex);
b481de9c
ZY		 5565 spin_lock_irqsave(&priv->lock, flags);
5566
fee1247a 5567 if (!iwl_is_ready_rf(priv)) {
b481de9c
ZY		 5568 rc = -EIO;
5569 IWL_DEBUG_MAC80211("leave - not ready or exit pending\n");
5570 goto out_unlock;
5571 }
5572
5573 if (priv->iw_mode == IEEE80211_IF_TYPE_AP) { /* APs don't scan */
5574 rc = -EIO;
5575 IWL_ERROR("ERROR: APs don't scan\n");
5576 goto out_unlock;
5577 }
5578
7878a5a4
MA		 5579 /* we don't schedule scan within next_scan_jiffies period */
5580 if (priv->next_scan_jiffies &&
5581 time_after(priv->next_scan_jiffies, jiffies)) {
5582 rc = -EAGAIN;
5583 goto out_unlock;
5584 }
b481de9c 5585 /* if we just finished scan ask for delay */
7878a5a4
MA		 5586 if (priv->last_scan_jiffies && time_after(priv->last_scan_jiffies +
5587 IWL_DELAY_NEXT_SCAN, jiffies)) {
b481de9c
ZY		 5588 rc = -EAGAIN;
5589 goto out_unlock;
5590 }
5591 if (len) {
7878a5a4 5592 IWL_DEBUG_SCAN("direct scan for %s [%d]\n ",
bb8c093b 5593 iwl4965_escape_essid(ssid, len), (int)len);
b481de9c
ZY		 5594
5595 priv->one_direct_scan = 1;
5596 priv->direct_ssid_len = (u8)
5597 min((u8) len, (u8) IW_ESSID_MAX_SIZE);
5598 memcpy(priv->direct_ssid, ssid, priv->direct_ssid_len);
948c171c
MA		 5599 } else
5600 priv->one_direct_scan = 0;
b481de9c 5601
bb8c093b 5602 rc = iwl4965_scan_initiate(priv);
b481de9c
ZY		 5603
5604 IWL_DEBUG_MAC80211("leave\n");
5605
5606out_unlock:
5607 spin_unlock_irqrestore(&priv->lock, flags);
052c4b9f 5608 mutex_unlock(&priv->mutex);
b481de9c
ZY		 5609
5610 return rc;
5611}
5612
ab885f8c
EG		 5613static void iwl4965_mac_update_tkip_key(struct ieee80211_hw *hw,
5614 struct ieee80211_key_conf *keyconf, const u8 *addr,
5615 u32 iv32, u16 *phase1key)
5616{
5617 struct iwl_priv *priv = hw->priv;
5618 u8 sta_id = IWL_INVALID_STATION;
5619 unsigned long flags;
5620 __le16 key_flags = 0;
5621 int i;
5622 DECLARE_MAC_BUF(mac);
5623
5624 IWL_DEBUG_MAC80211("enter\n");
5625
947b13a7 5626 sta_id = iwl_find_station(priv, addr);
ab885f8c
EG		 5627 if (sta_id == IWL_INVALID_STATION) {
5628 IWL_DEBUG_MAC80211("leave - %s not in station map.\n",
5629 print_mac(mac, addr));
5630 return;
5631 }
5632
5633 iwl4965_scan_cancel_timeout(priv, 100);
5634
5635 key_flags |= (STA_KEY_FLG_TKIP | STA_KEY_FLG_MAP_KEY_MSK);
5636 key_flags |= cpu_to_le16(keyconf->keyidx << STA_KEY_FLG_KEYID_POS);
5637 key_flags &= ~STA_KEY_FLG_INVALID;
5638
5425e490 5639 if (sta_id == priv->hw_params.bcast_sta_id)
ab885f8c
EG		 5640 key_flags |= STA_KEY_MULTICAST_MSK;
5641
5642 spin_lock_irqsave(&priv->sta_lock, flags);
5643
ab885f8c
EG		 5644 priv->stations[sta_id].sta.key.key_flags = key_flags;
5645 priv->stations[sta_id].sta.key.tkip_rx_tsc_byte2 = (u8) iv32;
5646
5647 for (i = 0; i < 5; i++)
5648 priv->stations[sta_id].sta.key.tkip_rx_ttak[i] =
5649 cpu_to_le16(phase1key[i]);
5650
5651 priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK;
5652 priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
5653
133636de 5654 iwl_send_add_sta(priv, &priv->stations[sta_id].sta, CMD_ASYNC);
ab885f8c
EG		 5655
5656 spin_unlock_irqrestore(&priv->sta_lock, flags);
5657
5658 IWL_DEBUG_MAC80211("leave\n");
5659}
5660
bb8c093b 5661static int iwl4965_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
b481de9c
ZY		 5662 const u8 *local_addr, const u8 *addr,
5663 struct ieee80211_key_conf *key)
5664{
c79dd5b5 5665 struct iwl_priv *priv = hw->priv;
0795af57 5666 DECLARE_MAC_BUF(mac);
deb09c43
EG		 5667 int ret = 0;
5668 u8 sta_id = IWL_INVALID_STATION;
6974e363 5669 u8 is_default_wep_key = 0;
b481de9c
ZY		 5670
5671 IWL_DEBUG_MAC80211("enter\n");
5672
099b40b7 5673 if (priv->hw_params.sw_crypto) {
b481de9c
ZY		 5674 IWL_DEBUG_MAC80211("leave - hwcrypto disabled\n");
5675 return -EOPNOTSUPP;
5676 }
5677
5678 if (is_zero_ether_addr(addr))
5679 /* only support pairwise keys */
5680 return -EOPNOTSUPP;
5681
947b13a7 5682 sta_id = iwl_find_station(priv, addr);
6974e363
EG		 5683 if (sta_id == IWL_INVALID_STATION) {
5684 IWL_DEBUG_MAC80211("leave - %s not in station map.\n",
5685 print_mac(mac, addr));
5686 return -EINVAL;
b481de9c 5687
deb09c43 5688 }
b481de9c 5689
6974e363 5690 mutex_lock(&priv->mutex);
bb8c093b 5691 iwl4965_scan_cancel_timeout(priv, 100);
6974e363
EG		 5692 mutex_unlock(&priv->mutex);
5693
5694 /* If we are getting WEP group key and we didn't receive any key mapping
5695 * so far, we are in legacy wep mode (group key only), otherwise we are
5696 * in 1X mode.
5697 * In legacy wep mode, we use another host command to the uCode */
5425e490 5698 if (key->alg == ALG_WEP && sta_id == priv->hw_params.bcast_sta_id &&
6974e363
EG		 5699 priv->iw_mode != IEEE80211_IF_TYPE_AP) {
5700 if (cmd == SET_KEY)
5701 is_default_wep_key = !priv->key_mapping_key;
5702 else
5703 is_default_wep_key = priv->default_wep_key;
5704 }
052c4b9f 5705
b481de9c 5706 switch (cmd) {
deb09c43 5707 case SET_KEY:
6974e363
EG		 5708 if (is_default_wep_key)
5709 ret = iwl_set_default_wep_key(priv, key);
deb09c43 5710 else
7480513f 5711 ret = iwl_set_dynamic_key(priv, key, sta_id);
deb09c43
EG		 5712
5713 IWL_DEBUG_MAC80211("enable hwcrypto key\n");
b481de9c
ZY		 5714 break;
5715 case DISABLE_KEY:
6974e363
EG		 5716 if (is_default_wep_key)
5717 ret = iwl_remove_default_wep_key(priv, key);
deb09c43 5718 else
3ec47732 5719 ret = iwl_remove_dynamic_key(priv, key, sta_id);
deb09c43
EG		 5720
5721 IWL_DEBUG_MAC80211("disable hwcrypto key\n");
b481de9c
ZY		 5722 break;
5723 default:
deb09c43 5724 ret = -EINVAL;
b481de9c
ZY		 5725 }
5726
5727 IWL_DEBUG_MAC80211("leave\n");
b481de9c 5728
deb09c43 5729 return ret;
b481de9c
ZY		 5730}
5731
e100bb64 5732static int iwl4965_mac_conf_tx(struct ieee80211_hw *hw, u16 queue,
b481de9c
ZY		 5733 const struct ieee80211_tx_queue_params *params)
5734{
c79dd5b5 5735 struct iwl_priv *priv = hw->priv;
b481de9c
ZY		 5736 unsigned long flags;
5737 int q;
b481de9c
ZY		 5738
5739 IWL_DEBUG_MAC80211("enter\n");
5740
fee1247a 5741 if (!iwl_is_ready_rf(priv)) {
b481de9c
ZY		 5742 IWL_DEBUG_MAC80211("leave - RF not ready\n");
5743 return -EIO;
5744 }
5745
5746 if (queue >= AC_NUM) {
5747 IWL_DEBUG_MAC80211("leave - queue >= AC_NUM %d\n", queue);
5748 return 0;
5749 }
5750
b481de9c
ZY		 5751 if (!priv->qos_data.qos_enable) {
5752 priv->qos_data.qos_active = 0;
5753 IWL_DEBUG_MAC80211("leave - qos not enabled\n");
5754 return 0;
5755 }
5756 q = AC_NUM - 1 - queue;
5757
5758 spin_lock_irqsave(&priv->lock, flags);
5759
5760 priv->qos_data.def_qos_parm.ac[q].cw_min = cpu_to_le16(params->cw_min);
5761 priv->qos_data.def_qos_parm.ac[q].cw_max = cpu_to_le16(params->cw_max);
5762 priv->qos_data.def_qos_parm.ac[q].aifsn = params->aifs;
5763 priv->qos_data.def_qos_parm.ac[q].edca_txop =
3330d7be 5764 cpu_to_le16((params->txop * 32));
b481de9c
ZY		 5765
5766 priv->qos_data.def_qos_parm.ac[q].reserved1 = 0;
5767 priv->qos_data.qos_active = 1;
5768
5769 spin_unlock_irqrestore(&priv->lock, flags);
5770
5771 mutex_lock(&priv->mutex);
5772 if (priv->iw_mode == IEEE80211_IF_TYPE_AP)
bb8c093b 5773 iwl4965_activate_qos(priv, 1);
3109ece1 5774 else if (priv->assoc_id && iwl_is_associated(priv))
bb8c093b 5775 iwl4965_activate_qos(priv, 0);
b481de9c
ZY		 5776
5777 mutex_unlock(&priv->mutex);
5778
b481de9c
ZY		 5779 IWL_DEBUG_MAC80211("leave\n");
5780 return 0;
5781}
5782
bb8c093b 5783static int iwl4965_mac_get_tx_stats(struct ieee80211_hw *hw,
b481de9c
ZY		 5784 struct ieee80211_tx_queue_stats *stats)
5785{
c79dd5b5 5786 struct iwl_priv *priv = hw->priv;
b481de9c 5787 int i, avail;
16466903 5788 struct iwl_tx_queue *txq;
443cfd45 5789 struct iwl_queue *q;
b481de9c
ZY		 5790 unsigned long flags;
5791
5792 IWL_DEBUG_MAC80211("enter\n");
5793
fee1247a 5794 if (!iwl_is_ready_rf(priv)) {
b481de9c
ZY		 5795 IWL_DEBUG_MAC80211("leave - RF not ready\n");
5796 return -EIO;
5797 }
5798
5799 spin_lock_irqsave(&priv->lock, flags);
5800
5801 for (i = 0; i < AC_NUM; i++) {
5802 txq = &priv->txq[i];
5803 q = &txq->q;
443cfd45 5804 avail = iwl_queue_space(q);
b481de9c 5805
57ffc589
JB		 5806 stats[i].len = q->n_window - avail;
5807 stats[i].limit = q->n_window - q->high_mark;
5808 stats[i].count = q->n_window;
b481de9c
ZY		 5809
5810 }
5811 spin_unlock_irqrestore(&priv->lock, flags);
5812
5813 IWL_DEBUG_MAC80211("leave\n");
5814
5815 return 0;
5816}
5817
bb8c093b 5818static int iwl4965_mac_get_stats(struct ieee80211_hw *hw,
b481de9c
ZY		 5819 struct ieee80211_low_level_stats *stats)
5820{
bf403db8
EK		 5821 struct iwl_priv *priv = hw->priv;
5822
5823 priv = hw->priv;
b481de9c
ZY		 5824 IWL_DEBUG_MAC80211("enter\n");
5825 IWL_DEBUG_MAC80211("leave\n");
5826
5827 return 0;
5828}
5829
bb8c093b 5830static u64 iwl4965_mac_get_tsf(struct ieee80211_hw *hw)
b481de9c 5831{
bf403db8
EK		 5832 struct iwl_priv *priv;
5833
5834 priv = hw->priv;
b481de9c
ZY		 5835 IWL_DEBUG_MAC80211("enter\n");
5836 IWL_DEBUG_MAC80211("leave\n");
5837
5838 return 0;
5839}
5840
bb8c093b 5841static void iwl4965_mac_reset_tsf(struct ieee80211_hw *hw)
b481de9c 5842{
c79dd5b5 5843 struct iwl_priv *priv = hw->priv;
b481de9c
ZY		 5844 unsigned long flags;
5845
5846 mutex_lock(&priv->mutex);
5847 IWL_DEBUG_MAC80211("enter\n");
5848
5849 priv->lq_mngr.lq_ready = 0;
c8b0e6e1 5850#ifdef CONFIG_IWL4965_HT
b481de9c 5851 spin_lock_irqsave(&priv->lock, flags);
fd105e79 5852 memset(&priv->current_ht_config, 0, sizeof(struct iwl_ht_info));
b481de9c 5853 spin_unlock_irqrestore(&priv->lock, flags);
c8b0e6e1 5854#endif /* CONFIG_IWL4965_HT */
b481de9c 5855
c7de35cd 5856 iwl_reset_qos(priv);
b481de9c
ZY		 5857
5858 cancel_delayed_work(&priv->post_associate);
5859
5860 spin_lock_irqsave(&priv->lock, flags);
5861 priv->assoc_id = 0;
5862 priv->assoc_capability = 0;
b481de9c
ZY		 5863 priv->assoc_station_added = 0;
5864
5865 /* new association get rid of ibss beacon skb */
5866 if (priv->ibss_beacon)
5867 dev_kfree_skb(priv->ibss_beacon);
5868
5869 priv->ibss_beacon = NULL;
5870
5871 priv->beacon_int = priv->hw->conf.beacon_int;
3109ece1 5872 priv->timestamp = 0;
b481de9c
ZY		 5873 if ((priv->iw_mode == IEEE80211_IF_TYPE_STA))
5874 priv->beacon_int = 0;
5875
5876 spin_unlock_irqrestore(&priv->lock, flags);
5877
fee1247a 5878 if (!iwl_is_ready_rf(priv)) {
fde3571f
MA		 5879 IWL_DEBUG_MAC80211("leave - not ready\n");
5880 mutex_unlock(&priv->mutex);
5881 return;
5882 }
5883
052c4b9f 5884 /* we are restarting association process
5885 * clear RXON_FILTER_ASSOC_MSK bit
5886 */
5887 if (priv->iw_mode != IEEE80211_IF_TYPE_AP) {
bb8c093b 5888 iwl4965_scan_cancel_timeout(priv, 100);
052c4b9f 5889 priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
bb8c093b 5890 iwl4965_commit_rxon(priv);
052c4b9f 5891 }
5892
5da4b55f
MA		 5893 iwl_power_update_mode(priv, 0);
5894
b481de9c
ZY		 5895 /* Per mac80211.h: This is only used in IBSS mode... */
5896 if (priv->iw_mode != IEEE80211_IF_TYPE_IBSS) {
052c4b9f 5897
b481de9c
ZY		 5898 IWL_DEBUG_MAC80211("leave - not in IBSS\n");
5899 mutex_unlock(&priv->mutex);
5900 return;
5901 }
5902
bb8c093b 5903 iwl4965_set_rate(priv);
b481de9c
ZY		 5904
5905 mutex_unlock(&priv->mutex);
5906
5907 IWL_DEBUG_MAC80211("leave\n");
b481de9c
ZY		 5908}
5909
bb8c093b 5910static int iwl4965_mac_beacon_update(struct ieee80211_hw *hw, struct sk_buff *skb,
b481de9c
ZY		 5911 struct ieee80211_tx_control *control)
5912{
c79dd5b5 5913 struct iwl_priv *priv = hw->priv;
b481de9c
ZY		 5914 unsigned long flags;
5915
5916 mutex_lock(&priv->mutex);
5917 IWL_DEBUG_MAC80211("enter\n");
5918
fee1247a 5919 if (!iwl_is_ready_rf(priv)) {
b481de9c
ZY		 5920 IWL_DEBUG_MAC80211("leave - RF not ready\n");
5921 mutex_unlock(&priv->mutex);
5922 return -EIO;
5923 }
5924
5925 if (priv->iw_mode != IEEE80211_IF_TYPE_IBSS) {
5926 IWL_DEBUG_MAC80211("leave - not IBSS\n");
5927 mutex_unlock(&priv->mutex);
5928 return -EIO;
5929 }
5930
5931 spin_lock_irqsave(&priv->lock, flags);
5932
5933 if (priv->ibss_beacon)
5934 dev_kfree_skb(priv->ibss_beacon);
5935
5936 priv->ibss_beacon = skb;
5937
5938 priv->assoc_id = 0;
5939
5940 IWL_DEBUG_MAC80211("leave\n");
5941 spin_unlock_irqrestore(&priv->lock, flags);
5942
c7de35cd 5943 iwl_reset_qos(priv);
b481de9c
ZY		 5944
5945 queue_work(priv->workqueue, &priv->post_associate.work);
5946
5947 mutex_unlock(&priv->mutex);
5948
5949 return 0;
5950}
5951
b481de9c
ZY		 5952/*****************************************************************************
5953 *
5954 * sysfs attributes
5955 *
5956 *****************************************************************************/
5957
0a6857e7 5958#ifdef CONFIG_IWLWIFI_DEBUG
b481de9c
ZY		 5959
5960/*
5961 * The following adds a new attribute to the sysfs representation
5962 * of this device driver (i.e. a new file in /sys/bus/pci/drivers/iwl/)
5963 * used for controlling the debug level.
5964 *
5965 * See the level definitions in iwl for details.
5966 */
5967
8cf769c6
EK		 5968static ssize_t show_debug_level(struct device *d,
5969 struct device_attribute *attr, char *buf)
b481de9c 5970{
8cf769c6
EK		 5971 struct iwl_priv *priv = d->driver_data;
5972
5973 return sprintf(buf, "0x%08X\n", priv->debug_level);
b481de9c 5974}
8cf769c6
EK		 5975static ssize_t store_debug_level(struct device *d,
5976 struct device_attribute *attr,
b481de9c
ZY		 5977 const char *buf, size_t count)
5978{
8cf769c6 5979 struct iwl_priv *priv = d->driver_data;
b481de9c
ZY		 5980 char *p = (char *)buf;
5981 u32 val;
5982
5983 val = simple_strtoul(p, &p, 0);
5984 if (p == buf)
5985 printk(KERN_INFO DRV_NAME
5986 ": %s is not in hex or decimal form.\n", buf);
5987 else
8cf769c6 5988 priv->debug_level = val;
b481de9c
ZY		 5989
5990 return strnlen(buf, count);
5991}
5992
8cf769c6
EK		 5993static DEVICE_ATTR(debug_level, S_IWUSR | S_IRUGO,
5994 show_debug_level, store_debug_level);
5995
b481de9c 5996
0a6857e7 5997#endif /* CONFIG_IWLWIFI_DEBUG */
b481de9c 5998
b481de9c 5999
bc6f59bc
TW		 6000static ssize_t show_version(struct device *d,
6001 struct device_attribute *attr, char *buf)
6002{
6003 struct iwl_priv *priv = d->driver_data;
6004 struct iwl4965_alive_resp *palive = &priv->card_alive;
6005
6006 if (palive->is_valid)
6007 return sprintf(buf, "fw version: 0x%01X.0x%01X.0x%01X.0x%01X\n"
6008 "fw type: 0x%01X 0x%01X\n",
6009 palive->ucode_major, palive->ucode_minor,
6010 palive->sw_rev[0], palive->sw_rev[1],
6011 palive->ver_type, palive->ver_subtype);
6012
6013 else
6014 return sprintf(buf, "fw not loaded\n");
6015}
6016
6017static DEVICE_ATTR(version, S_IWUSR | S_IRUGO, show_version, NULL);
6018
b481de9c
ZY		 6019static ssize_t show_temperature(struct device *d,
6020 struct device_attribute *attr, char *buf)
6021{
c79dd5b5 6022 struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
b481de9c 6023
fee1247a 6024 if (!iwl_is_alive(priv))
b481de9c
ZY		 6025 return -EAGAIN;
6026
bb8c093b 6027 return sprintf(buf, "%d\n", iwl4965_hw_get_temperature(priv));
b481de9c
ZY		 6028}
6029
6030static DEVICE_ATTR(temperature, S_IRUGO, show_temperature, NULL);
6031
6032static ssize_t show_rs_window(struct device *d,
6033 struct device_attribute *attr,
6034 char *buf)
6035{
c79dd5b5 6036 struct iwl_priv *priv = d->driver_data;
bb8c093b 6037 return iwl4965_fill_rs_info(priv->hw, buf, IWL_AP_ID);
b481de9c
ZY		 6038}
6039static DEVICE_ATTR(rs_window, S_IRUGO, show_rs_window, NULL);
6040
6041static ssize_t show_tx_power(struct device *d,
6042 struct device_attribute *attr, char *buf)
6043{
c79dd5b5 6044 struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
b481de9c
ZY		 6045 return sprintf(buf, "%d\n", priv->user_txpower_limit);
6046}
6047
6048static ssize_t store_tx_power(struct device *d,
6049 struct device_attribute *attr,
6050 const char *buf, size_t count)
6051{
c79dd5b5 6052 struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
b481de9c
ZY		 6053 char *p = (char *)buf;
6054 u32 val;
6055
6056 val = simple_strtoul(p, &p, 10);
6057 if (p == buf)
6058 printk(KERN_INFO DRV_NAME
6059 ": %s is not in decimal form.\n", buf);
6060 else
bb8c093b 6061 iwl4965_hw_reg_set_txpower(priv, val);
b481de9c
ZY		 6062
6063 return count;
6064}
6065
6066static DEVICE_ATTR(tx_power, S_IWUSR | S_IRUGO, show_tx_power, store_tx_power);
6067
6068static ssize_t show_flags(struct device *d,
6069 struct device_attribute *attr, char *buf)
6070{
c79dd5b5 6071 struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
b481de9c
ZY		 6072
6073 return sprintf(buf, "0x%04X\n", priv->active_rxon.flags);
6074}
6075
6076static ssize_t store_flags(struct device *d,
6077 struct device_attribute *attr,
6078 const char *buf, size_t count)
6079{
c79dd5b5 6080 struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
b481de9c
ZY		 6081 u32 flags = simple_strtoul(buf, NULL, 0);
6082
6083 mutex_lock(&priv->mutex);
6084 if (le32_to_cpu(priv->staging_rxon.flags) != flags) {
6085 /* Cancel any currently running scans... */
bb8c093b 6086 if (iwl4965_scan_cancel_timeout(priv, 100))
b481de9c
ZY		 6087 IWL_WARNING("Could not cancel scan.\n");
6088 else {
6089 IWL_DEBUG_INFO("Committing rxon.flags = 0x%04X\n",
6090 flags);
6091 priv->staging_rxon.flags = cpu_to_le32(flags);
bb8c093b 6092 iwl4965_commit_rxon(priv);
b481de9c
ZY		 6093 }
6094 }
6095 mutex_unlock(&priv->mutex);
6096
6097 return count;
6098}
6099
6100static DEVICE_ATTR(flags, S_IWUSR | S_IRUGO, show_flags, store_flags);
6101
6102static ssize_t show_filter_flags(struct device *d,
6103 struct device_attribute *attr, char *buf)
6104{
c79dd5b5 6105 struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
b481de9c
ZY		 6106
6107 return sprintf(buf, "0x%04X\n",
6108 le32_to_cpu(priv->active_rxon.filter_flags));
6109}
6110
6111static ssize_t store_filter_flags(struct device *d,
6112 struct device_attribute *attr,
6113 const char *buf, size_t count)
6114{
c79dd5b5 6115 struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
b481de9c
ZY		 6116 u32 filter_flags = simple_strtoul(buf, NULL, 0);
6117
6118 mutex_lock(&priv->mutex);
6119 if (le32_to_cpu(priv->staging_rxon.filter_flags) != filter_flags) {
6120 /* Cancel any currently running scans... */
bb8c093b 6121 if (iwl4965_scan_cancel_timeout(priv, 100))
b481de9c
ZY		 6122 IWL_WARNING("Could not cancel scan.\n");
6123 else {
6124 IWL_DEBUG_INFO("Committing rxon.filter_flags = "
6125 "0x%04X\n", filter_flags);
6126 priv->staging_rxon.filter_flags =
6127 cpu_to_le32(filter_flags);
bb8c093b 6128 iwl4965_commit_rxon(priv);
b481de9c
ZY		 6129 }
6130 }
6131 mutex_unlock(&priv->mutex);
6132
6133 return count;
6134}
6135
6136static DEVICE_ATTR(filter_flags, S_IWUSR | S_IRUGO, show_filter_flags,
6137 store_filter_flags);
6138
c8b0e6e1 6139#ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
b481de9c
ZY		 6140
6141static ssize_t show_measurement(struct device *d,
6142 struct device_attribute *attr, char *buf)
6143{
c79dd5b5 6144 struct iwl_priv *priv = dev_get_drvdata(d);
bb8c093b 6145 struct iwl4965_spectrum_notification measure_report;
b481de9c
ZY		 6146 u32 size = sizeof(measure_report), len = 0, ofs = 0;
6147 u8 *data = (u8 *) & measure_report;
6148 unsigned long flags;
6149
6150 spin_lock_irqsave(&priv->lock, flags);
6151 if (!(priv->measurement_status & MEASUREMENT_READY)) {
6152 spin_unlock_irqrestore(&priv->lock, flags);
6153 return 0;
6154 }
6155 memcpy(&measure_report, &priv->measure_report, size);
6156 priv->measurement_status = 0;
6157 spin_unlock_irqrestore(&priv->lock, flags);
6158
6159 while (size && (PAGE_SIZE - len)) {
6160 hex_dump_to_buffer(data + ofs, size, 16, 1, buf + len,
6161 PAGE_SIZE - len, 1);
6162 len = strlen(buf);
6163 if (PAGE_SIZE - len)
6164 buf[len++] = '\n';
6165
6166 ofs += 16;
6167 size -= min(size, 16U);
6168 }
6169
6170 return len;
6171}
6172
6173static ssize_t store_measurement(struct device *d,
6174 struct device_attribute *attr,
6175 const char *buf, size_t count)
6176{
c79dd5b5 6177 struct iwl_priv *priv = dev_get_drvdata(d);
b481de9c
ZY		 6178 struct ieee80211_measurement_params params = {
6179 .channel = le16_to_cpu(priv->active_rxon.channel),
6180 .start_time = cpu_to_le64(priv->last_tsf),
6181 .duration = cpu_to_le16(1),
6182 };
6183 u8 type = IWL_MEASURE_BASIC;
6184 u8 buffer[32];
6185 u8 channel;
6186
6187 if (count) {
6188 char *p = buffer;
6189 strncpy(buffer, buf, min(sizeof(buffer), count));
6190 channel = simple_strtoul(p, NULL, 0);
6191 if (channel)
6192 params.channel = channel;
6193
6194 p = buffer;
6195 while (*p && *p != ' ')
6196 p++;
6197 if (*p)
6198 type = simple_strtoul(p + 1, NULL, 0);
6199 }
6200
6201 IWL_DEBUG_INFO("Invoking measurement of type %d on "
6202 "channel %d (for '%s')\n", type, params.channel, buf);
bb8c093b 6203 iwl4965_get_measurement(priv, &params, type);
b481de9c
ZY		 6204
6205 return count;
6206}
6207
6208static DEVICE_ATTR(measurement, S_IRUSR | S_IWUSR,
6209 show_measurement, store_measurement);
c8b0e6e1 6210#endif /* CONFIG_IWL4965_SPECTRUM_MEASUREMENT */
b481de9c
ZY		 6211
6212static ssize_t store_retry_rate(struct device *d,
6213 struct device_attribute *attr,
6214 const char *buf, size_t count)
6215{
c79dd5b5 6216 struct iwl_priv *priv = dev_get_drvdata(d);
b481de9c
ZY		 6217
6218 priv->retry_rate = simple_strtoul(buf, NULL, 0);
6219 if (priv->retry_rate <= 0)
6220 priv->retry_rate = 1;
6221
6222 return count;
6223}
6224
6225static ssize_t show_retry_rate(struct device *d,
6226 struct device_attribute *attr, char *buf)
6227{
c79dd5b5 6228 struct iwl_priv *priv = dev_get_drvdata(d);
b481de9c
ZY		 6229 return sprintf(buf, "%d", priv->retry_rate);
6230}
6231
6232static DEVICE_ATTR(retry_rate, S_IWUSR | S_IRUSR, show_retry_rate,
6233 store_retry_rate);
6234
6235static ssize_t store_power_level(struct device *d,
6236 struct device_attribute *attr,
6237 const char *buf, size_t count)
6238{
c79dd5b5 6239 struct iwl_priv *priv = dev_get_drvdata(d);
b481de9c
ZY		 6240 int rc;
6241 int mode;
6242
6243 mode = simple_strtoul(buf, NULL, 0);
6244 mutex_lock(&priv->mutex);
6245
fee1247a 6246 if (!iwl_is_ready(priv)) {
b481de9c
ZY		 6247 rc = -EAGAIN;
6248 goto out;
6249 }
6250
5da4b55f
MA		 6251 rc = iwl_power_set_user_mode(priv, mode);
6252 if (rc) {
6253 IWL_DEBUG_MAC80211("failed setting power mode.\n");
6254 goto out;
b481de9c 6255 }
b481de9c
ZY		 6256 rc = count;
6257
6258 out:
6259 mutex_unlock(&priv->mutex);
6260 return rc;
6261}
6262
6263#define MAX_WX_STRING 80
6264
6265/* Values are in microsecond */
6266static const s32 timeout_duration[] = {
6267 350000,
6268 250000,
6269 75000,
6270 37000,
6271 25000,
6272};
6273static const s32 period_duration[] = {
6274 400000,
6275 700000,
6276 1000000,
6277 1000000,
6278 1000000
6279};
6280
6281static ssize_t show_power_level(struct device *d,
6282 struct device_attribute *attr, char *buf)
6283{
c79dd5b5 6284 struct iwl_priv *priv = dev_get_drvdata(d);
5da4b55f 6285 int level = priv->power_data.power_mode;
b481de9c
ZY		 6286 char *p = buf;
6287
6288 p += sprintf(p, "%d ", level);
6289 switch (level) {
6290 case IWL_POWER_MODE_CAM:
6291 case IWL_POWER_AC:
6292 p += sprintf(p, "(AC)");
6293 break;
6294 case IWL_POWER_BATTERY:
6295 p += sprintf(p, "(BATTERY)");
6296 break;
6297 default:
6298 p += sprintf(p,
6299 "(Timeout %dms, Period %dms)",
6300 timeout_duration[level - 1] / 1000,
6301 period_duration[level - 1] / 1000);
6302 }
5da4b55f 6303/*
b481de9c
ZY		 6304 if (!(priv->power_mode & IWL_POWER_ENABLED))
6305 p += sprintf(p, " OFF\n");
6306 else
6307 p += sprintf(p, " \n");
5da4b55f
MA		 6308*/
6309 p += sprintf(p, " \n");
b481de9c 6310 return (p - buf + 1);
b481de9c
ZY		 6311}
6312
6313static DEVICE_ATTR(power_level, S_IWUSR | S_IRUSR, show_power_level,
6314 store_power_level);
6315
6316static ssize_t show_channels(struct device *d,
6317 struct device_attribute *attr, char *buf)
6318{
8318d78a
JB		 6319 /* all this shit doesn't belong into sysfs anyway */
6320 return 0;
b481de9c
ZY		 6321}
6322
6323static DEVICE_ATTR(channels, S_IRUSR, show_channels, NULL);
6324
6325static ssize_t show_statistics(struct device *d,
6326 struct device_attribute *attr, char *buf)
6327{
c79dd5b5 6328 struct iwl_priv *priv = dev_get_drvdata(d);
bb8c093b 6329 u32 size = sizeof(struct iwl4965_notif_statistics);
b481de9c
ZY		 6330 u32 len = 0, ofs = 0;
6331 u8 *data = (u8 *) & priv->statistics;
6332 int rc = 0;
6333
fee1247a 6334 if (!iwl_is_alive(priv))
b481de9c
ZY		 6335 return -EAGAIN;
6336
6337 mutex_lock(&priv->mutex);
49ea8596 6338 rc = iwl_send_statistics_request(priv, 0);
b481de9c
ZY		 6339 mutex_unlock(&priv->mutex);
6340
6341 if (rc) {
6342 len = sprintf(buf,
6343 "Error sending statistics request: 0x%08X\n", rc);
6344 return len;
6345 }
6346
6347 while (size && (PAGE_SIZE - len)) {
6348 hex_dump_to_buffer(data + ofs, size, 16, 1, buf + len,
6349 PAGE_SIZE - len, 1);
6350 len = strlen(buf);
6351 if (PAGE_SIZE - len)
6352 buf[len++] = '\n';
6353
6354 ofs += 16;
6355 size -= min(size, 16U);
6356 }
6357
6358 return len;
6359}
6360
6361static DEVICE_ATTR(statistics, S_IRUGO, show_statistics, NULL);
6362
b481de9c
ZY		 6363static ssize_t show_status(struct device *d,
6364 struct device_attribute *attr, char *buf)
6365{
c79dd5b5 6366 struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
fee1247a 6367 if (!iwl_is_alive(priv))
b481de9c
ZY		 6368 return -EAGAIN;
6369 return sprintf(buf, "0x%08x\n", (int)priv->status);
6370}
6371
6372static DEVICE_ATTR(status, S_IRUGO, show_status, NULL);
6373
6374static ssize_t dump_error_log(struct device *d,
6375 struct device_attribute *attr,
6376 const char *buf, size_t count)
6377{
6378 char *p = (char *)buf;
6379
6380 if (p[0] == '1')
c79dd5b5 6381 iwl4965_dump_nic_error_log((struct iwl_priv *)d->driver_data);
b481de9c
ZY		 6382
6383 return strnlen(buf, count);
6384}
6385
6386static DEVICE_ATTR(dump_errors, S_IWUSR, NULL, dump_error_log);
6387
6388static ssize_t dump_event_log(struct device *d,
6389 struct device_attribute *attr,
6390 const char *buf, size_t count)
6391{
6392 char *p = (char *)buf;
6393
6394 if (p[0] == '1')
c79dd5b5 6395 iwl4965_dump_nic_event_log((struct iwl_priv *)d->driver_data);
b481de9c
ZY		 6396
6397 return strnlen(buf, count);
6398}
6399
6400static DEVICE_ATTR(dump_events, S_IWUSR, NULL, dump_event_log);
6401
6402/*****************************************************************************
6403 *
6404 * driver setup and teardown
6405 *
6406 *****************************************************************************/
6407
c79dd5b5 6408static void iwl4965_setup_deferred_work(struct iwl_priv *priv)
b481de9c
ZY		 6409{
6410 priv->workqueue = create_workqueue(DRV_NAME);
6411
6412 init_waitqueue_head(&priv->wait_command_queue);
6413
bb8c093b
CH		 6414 INIT_WORK(&priv->up, iwl4965_bg_up);
6415 INIT_WORK(&priv->restart, iwl4965_bg_restart);
6416 INIT_WORK(&priv->rx_replenish, iwl4965_bg_rx_replenish);
6417 INIT_WORK(&priv->scan_completed, iwl4965_bg_scan_completed);
6418 INIT_WORK(&priv->request_scan, iwl4965_bg_request_scan);
6419 INIT_WORK(&priv->abort_scan, iwl4965_bg_abort_scan);
6420 INIT_WORK(&priv->rf_kill, iwl4965_bg_rf_kill);
6421 INIT_WORK(&priv->beacon_update, iwl4965_bg_beacon_update);
4419e39b 6422 INIT_WORK(&priv->set_monitor, iwl4965_bg_set_monitor);
bb8c093b
CH		 6423 INIT_DELAYED_WORK(&priv->post_associate, iwl4965_bg_post_associate);
6424 INIT_DELAYED_WORK(&priv->init_alive_start, iwl4965_bg_init_alive_start);
6425 INIT_DELAYED_WORK(&priv->alive_start, iwl4965_bg_alive_start);
6426 INIT_DELAYED_WORK(&priv->scan_check, iwl4965_bg_scan_check);
6427
6428 iwl4965_hw_setup_deferred_work(priv);
b481de9c
ZY		 6429
6430 tasklet_init(&priv->irq_tasklet, (void (*)(unsigned long))
bb8c093b 6431 iwl4965_irq_tasklet, (unsigned long)priv);
b481de9c
ZY		 6432}
6433
c79dd5b5 6434static void iwl4965_cancel_deferred_work(struct iwl_priv *priv)
b481de9c 6435{
bb8c093b 6436 iwl4965_hw_cancel_deferred_work(priv);
b481de9c 6437
3ae6a054 6438 cancel_delayed_work_sync(&priv->init_alive_start);
b481de9c
ZY		 6439 cancel_delayed_work(&priv->scan_check);
6440 cancel_delayed_work(&priv->alive_start);
6441 cancel_delayed_work(&priv->post_associate);
6442 cancel_work_sync(&priv->beacon_update);
6443}
6444
bb8c093b 6445static struct attribute *iwl4965_sysfs_entries[] = {
b481de9c
ZY		 6446 &dev_attr_channels.attr,
6447 &dev_attr_dump_errors.attr,
6448 &dev_attr_dump_events.attr,
6449 &dev_attr_flags.attr,
6450 &dev_attr_filter_flags.attr,
c8b0e6e1 6451#ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
b481de9c
ZY		 6452 &dev_attr_measurement.attr,
6453#endif
6454 &dev_attr_power_level.attr,
6455 &dev_attr_retry_rate.attr,
b481de9c
ZY		 6456 &dev_attr_rs_window.attr,
6457 &dev_attr_statistics.attr,
6458 &dev_attr_status.attr,
6459 &dev_attr_temperature.attr,
b481de9c 6460 &dev_attr_tx_power.attr,
8cf769c6
EK		 6461#ifdef CONFIG_IWLWIFI_DEBUG
6462 &dev_attr_debug_level.attr,
6463#endif
bc6f59bc 6464 &dev_attr_version.attr,
b481de9c
ZY		 6465
6466 NULL
6467};
6468
bb8c093b 6469static struct attribute_group iwl4965_attribute_group = {
b481de9c 6470 .name = NULL, /* put in device directory */
bb8c093b 6471 .attrs = iwl4965_sysfs_entries,
b481de9c
ZY		 6472};
6473
bb8c093b
CH		 6474static struct ieee80211_ops iwl4965_hw_ops = {
6475 .tx = iwl4965_mac_tx,
6476 .start = iwl4965_mac_start,
6477 .stop = iwl4965_mac_stop,
6478 .add_interface = iwl4965_mac_add_interface,
6479 .remove_interface = iwl4965_mac_remove_interface,
6480 .config = iwl4965_mac_config,
6481 .config_interface = iwl4965_mac_config_interface,
6482 .configure_filter = iwl4965_configure_filter,
6483 .set_key = iwl4965_mac_set_key,
ab885f8c 6484 .update_tkip_key = iwl4965_mac_update_tkip_key,
bb8c093b
CH		 6485 .get_stats = iwl4965_mac_get_stats,
6486 .get_tx_stats = iwl4965_mac_get_tx_stats,
6487 .conf_tx = iwl4965_mac_conf_tx,
6488 .get_tsf = iwl4965_mac_get_tsf,
6489 .reset_tsf = iwl4965_mac_reset_tsf,
6490 .beacon_update = iwl4965_mac_beacon_update,
471b3efd 6491 .bss_info_changed = iwl4965_bss_info_changed,
c8b0e6e1 6492#ifdef CONFIG_IWL4965_HT
9ab46173 6493 .ampdu_action = iwl4965_mac_ampdu_action,
c8b0e6e1 6494#endif /* CONFIG_IWL4965_HT */
bb8c093b 6495 .hw_scan = iwl4965_mac_hw_scan
b481de9c
ZY		 6496};
6497
bb8c093b 6498static int iwl4965_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
b481de9c
ZY		 6499{
6500 int err = 0;
c79dd5b5 6501 struct iwl_priv *priv;
b481de9c 6502 struct ieee80211_hw *hw;
82b9a121 6503 struct iwl_cfg *cfg = (struct iwl_cfg *)(ent->driver_data);
0359facc 6504 unsigned long flags;
5a66926a 6505 DECLARE_MAC_BUF(mac);
b481de9c 6506
316c30d9
AK		 6507 /************************
6508 * 1. Allocating HW data
6509 ************************/
6510
6440adb5
CB		 6511 /* Disabling hardware scan means that mac80211 will perform scans
6512 * "the hard way", rather than using device's scan. */
1ea87396 6513 if (cfg->mod_params->disable_hw_scan) {
bf403db8
EK		 6514 if (cfg->mod_params->debug & IWL_DL_INFO)
6515 dev_printk(KERN_DEBUG, &(pdev->dev),
6516 "Disabling hw_scan\n");
bb8c093b 6517 iwl4965_hw_ops.hw_scan = NULL;
b481de9c
ZY		 6518 }
6519
1d0a082d
AK		 6520 hw = iwl_alloc_all(cfg, &iwl4965_hw_ops);
6521 if (!hw) {
b481de9c
ZY		 6522 err = -ENOMEM;
6523 goto out;
6524 }
1d0a082d
AK		 6525 priv = hw->priv;
6526 /* At this point both hw and priv are allocated. */
6527
b481de9c
ZY		 6528 SET_IEEE80211_DEV(hw, &pdev->dev);
6529
6530 IWL_DEBUG_INFO("*** LOAD DRIVER ***\n");
82b9a121 6531 priv->cfg = cfg;
b481de9c 6532 priv->pci_dev = pdev;
316c30d9 6533
0a6857e7 6534#ifdef CONFIG_IWLWIFI_DEBUG
bf403db8 6535 priv->debug_level = priv->cfg->mod_params->debug;
b481de9c
ZY		 6536 atomic_set(&priv->restrict_refcnt, 0);
6537#endif
b481de9c 6538
316c30d9
AK		 6539 /**************************
6540 * 2. Initializing PCI bus
6541 **************************/
6542 if (pci_enable_device(pdev)) {
6543 err = -ENODEV;
6544 goto out_ieee80211_free_hw;
6545 }
6546
6547 pci_set_master(pdev);
6548
cc2a8ea8 6549 err = pci_set_dma_mask(pdev, DMA_64BIT_MASK);
316c30d9 6550 if (!err)
cc2a8ea8
RR		 6551 err = pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK);
6552 if (err) {
6553 err = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
6554 if (!err)
6555 err = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK);
6556 /* both attempts failed: */
316c30d9 6557 if (err) {
cc2a8ea8
RR		 6558 printk(KERN_WARNING "%s: No suitable DMA available.\n",
6559 DRV_NAME);
316c30d9 6560 goto out_pci_disable_device;
cc2a8ea8 6561 }
316c30d9
AK		 6562 }
6563
6564 err = pci_request_regions(pdev, DRV_NAME);
6565 if (err)
6566 goto out_pci_disable_device;
6567
6568 pci_set_drvdata(pdev, priv);
6569
6570 /* We disable the RETRY_TIMEOUT register (0x41) to keep
6571 * PCI Tx retries from interfering with C3 CPU state */
6572 pci_write_config_byte(pdev, 0x41, 0x00);
6573
6574 /***********************
6575 * 3. Read REV register
6576 ***********************/
6577 priv->hw_base = pci_iomap(pdev, 0, 0);
6578 if (!priv->hw_base) {
6579 err = -ENODEV;
6580 goto out_pci_release_regions;
6581 }
6582
6583 IWL_DEBUG_INFO("pci_resource_len = 0x%08llx\n",
6584 (unsigned long long) pci_resource_len(pdev, 0));
6585 IWL_DEBUG_INFO("pci_resource_base = %p\n", priv->hw_base);
6586
b661c819 6587 iwl_hw_detect(priv);
316c30d9 6588 printk(KERN_INFO DRV_NAME
b661c819
TW		 6589 ": Detected Intel Wireless WiFi Link %s REV=0x%X\n",
6590 priv->cfg->name, priv->hw_rev);
316c30d9 6591
91238714
TW		 6592 /* amp init */
6593 err = priv->cfg->ops->lib->apm_ops.init(priv);
316c30d9 6594 if (err < 0) {
91238714 6595 IWL_DEBUG_INFO("Failed to init APMG\n");
316c30d9
AK		 6596 goto out_iounmap;
6597 }
91238714
TW		 6598 /*****************
6599 * 4. Read EEPROM
6600 *****************/
316c30d9
AK		 6601 /* Read the EEPROM */
6602 err = iwl_eeprom_init(priv);
6603 if (err) {
6604 IWL_ERROR("Unable to init EEPROM\n");
6605 goto out_iounmap;
6606 }
8614f360
TW		 6607 err = iwl_eeprom_check_version(priv);
6608 if (err)
6609 goto out_iounmap;
6610
02883017 6611 /* extract MAC Address */
316c30d9
AK		 6612 iwl_eeprom_get_mac(priv, priv->mac_addr);
6613 IWL_DEBUG_INFO("MAC address: %s\n", print_mac(mac, priv->mac_addr));
6614 SET_IEEE80211_PERM_ADDR(priv->hw, priv->mac_addr);
6615
6616 /************************
6617 * 5. Setup HW constants
6618 ************************/
6619 /* Device-specific setup */
5425e490
TW		 6620 if (priv->cfg->ops->lib->set_hw_params(priv)) {
6621 IWL_ERROR("failed to set hw parameters\n");
073d3f5f 6622 goto out_free_eeprom;
316c30d9
AK		 6623 }
6624
6625 /*******************
6626 * 6. Setup hw/priv
6627 *******************/
b481de9c 6628
bf85ea4f
AK		 6629 err = iwl_setup(priv);
6630 if (err)
399f4900 6631 goto out_free_eeprom;
bf85ea4f 6632 /* At this point both hw and priv are initialized. */
316c30d9
AK		 6633
6634 /**********************************
6635 * 7. Initialize module parameters
6636 **********************************/
6637
6638 /* Disable radio (SW RF KILL) via parameter when loading driver */
1ea87396 6639 if (priv->cfg->mod_params->disable) {
316c30d9
AK		 6640 set_bit(STATUS_RF_KILL_SW, &priv->status);
6641 IWL_DEBUG_INFO("Radio disabled.\n");
6642 }
6643
1ea87396 6644 if (priv->cfg->mod_params->enable_qos)
316c30d9
AK		 6645 priv->qos_data.qos_enable = 1;
6646
6647 /********************
6648 * 8. Setup services
6649 ********************/
0359facc 6650 spin_lock_irqsave(&priv->lock, flags);
316c30d9 6651 iwl4965_disable_interrupts(priv);
0359facc 6652 spin_unlock_irqrestore(&priv->lock, flags);
316c30d9
AK		 6653
6654 err = sysfs_create_group(&pdev->dev.kobj, &iwl4965_attribute_group);
6655 if (err) {
6656 IWL_ERROR("failed to create sysfs device attributes\n");
399f4900 6657 goto out_free_eeprom;
316c30d9
AK		 6658 }
6659
6660 err = iwl_dbgfs_register(priv, DRV_NAME);
6661 if (err) {
6662 IWL_ERROR("failed to create debugfs files\n");
6663 goto out_remove_sysfs;
6664 }
6665
6666 iwl4965_setup_deferred_work(priv);
6667 iwl4965_setup_rx_handlers(priv);
6668
6669 /********************
6670 * 9. Conclude
6671 ********************/
5a66926a
ZY		 6672 pci_save_state(pdev);
6673 pci_disable_device(pdev);
b481de9c 6674
c8381fdc
MA		 6675 /* notify iwlcore to init */
6676 iwlcore_low_level_notify(priv, IWLCORE_INIT_EVT);
b481de9c
ZY		 6677 return 0;
6678
316c30d9
AK		 6679 out_remove_sysfs:
6680 sysfs_remove_group(&pdev->dev.kobj, &iwl4965_attribute_group);
073d3f5f
TW		 6681 out_free_eeprom:
6682 iwl_eeprom_free(priv);
b481de9c
ZY		 6683 out_iounmap:
6684 pci_iounmap(pdev, priv->hw_base);
6685 out_pci_release_regions:
6686 pci_release_regions(pdev);
316c30d9 6687 pci_set_drvdata(pdev, NULL);
b481de9c
ZY		 6688 out_pci_disable_device:
6689 pci_disable_device(pdev);
b481de9c
ZY		 6690 out_ieee80211_free_hw:
6691 ieee80211_free_hw(priv->hw);
6692 out:
6693 return err;
6694}
6695
c83dbf68 6696static void __devexit iwl4965_pci_remove(struct pci_dev *pdev)
b481de9c 6697{
c79dd5b5 6698 struct iwl_priv *priv = pci_get_drvdata(pdev);
b481de9c
ZY		 6699 struct list_head *p, *q;
6700 int i;
0359facc 6701 unsigned long flags;
b481de9c
ZY		 6702
6703 if (!priv)
6704 return;
6705
6706 IWL_DEBUG_INFO("*** UNLOAD DRIVER ***\n");
6707
c4f55232
RR		 6708 if (priv->mac80211_registered) {
6709 ieee80211_unregister_hw(priv->hw);
6710 priv->mac80211_registered = 0;
6711 }
6712
b481de9c 6713 set_bit(STATUS_EXIT_PENDING, &priv->status);
b24d22b1 6714
bb8c093b 6715 iwl4965_down(priv);
b481de9c 6716
0359facc
MA		 6717 /* make sure we flush any pending irq or
6718 * tasklet for the driver
6719 */
6720 spin_lock_irqsave(&priv->lock, flags);
6721 iwl4965_disable_interrupts(priv);
6722 spin_unlock_irqrestore(&priv->lock, flags);
6723
6724 iwl_synchronize_irq(priv);
6725
b481de9c
ZY		 6726 /* Free MAC hash list for ADHOC */
6727 for (i = 0; i < IWL_IBSS_MAC_HASH_SIZE; i++) {
6728 list_for_each_safe(p, q, &priv->ibss_mac_hash[i]) {
6729 list_del(p);
bb8c093b 6730 kfree(list_entry(p, struct iwl4965_ibss_seq, list));
b481de9c
ZY		 6731 }
6732 }
6733
c8381fdc 6734 iwlcore_low_level_notify(priv, IWLCORE_REMOVE_EVT);
712b6cf5 6735 iwl_dbgfs_unregister(priv);
bb8c093b 6736 sysfs_remove_group(&pdev->dev.kobj, &iwl4965_attribute_group);
b481de9c 6737
bb8c093b 6738 iwl4965_dealloc_ucode_pci(priv);
b481de9c
ZY		 6739
6740 if (priv->rxq.bd)
a55360e4 6741 iwl_rx_queue_free(priv, &priv->rxq);
1053d35f 6742 iwl_hw_txq_ctx_free(priv);
b481de9c 6743
bf85ea4f 6744 iwlcore_clear_stations_table(priv);
073d3f5f 6745 iwl_eeprom_free(priv);
b481de9c 6746
b481de9c 6747
948c171c
MA		 6748 /*netif_stop_queue(dev); */
6749 flush_workqueue(priv->workqueue);
6750
bb8c093b 6751 /* ieee80211_unregister_hw calls iwl4965_mac_stop, which flushes
b481de9c
ZY		 6752 * priv->workqueue... so we can't take down the workqueue
6753 * until now... */
6754 destroy_workqueue(priv->workqueue);
6755 priv->workqueue = NULL;
6756
b481de9c
ZY		 6757 pci_iounmap(pdev, priv->hw_base);
6758 pci_release_regions(pdev);
6759 pci_disable_device(pdev);
6760 pci_set_drvdata(pdev, NULL);
6761
bf85ea4f 6762 iwl_free_channel_map(priv);
c7de35cd 6763 iwlcore_free_geos(priv);
b481de9c
ZY		 6764
6765 if (priv->ibss_beacon)
6766 dev_kfree_skb(priv->ibss_beacon);
6767
6768 ieee80211_free_hw(priv->hw);
6769}
6770
6771#ifdef CONFIG_PM
6772
bb8c093b 6773static int iwl4965_pci_suspend(struct pci_dev *pdev, pm_message_t state)
b481de9c 6774{
c79dd5b5 6775 struct iwl_priv *priv = pci_get_drvdata(pdev);
b481de9c 6776
e655b9f0
ZY		 6777 if (priv->is_open) {
6778 set_bit(STATUS_IN_SUSPEND, &priv->status);
6779 iwl4965_mac_stop(priv->hw);
6780 priv->is_open = 1;
6781 }
b481de9c 6782
b481de9c
ZY		 6783 pci_set_power_state(pdev, PCI_D3hot);
6784
b481de9c
ZY		 6785 return 0;
6786}
6787
bb8c093b 6788static int iwl4965_pci_resume(struct pci_dev *pdev)
b481de9c 6789{
c79dd5b5 6790 struct iwl_priv *priv = pci_get_drvdata(pdev);
b481de9c 6791
b481de9c 6792 pci_set_power_state(pdev, PCI_D0);
b481de9c 6793
e655b9f0
ZY		 6794 if (priv->is_open)
6795 iwl4965_mac_start(priv->hw);
b481de9c 6796
e655b9f0 6797 clear_bit(STATUS_IN_SUSPEND, &priv->status);
b481de9c
ZY		 6798 return 0;
6799}
6800
6801#endif /* CONFIG_PM */
6802
6803/*****************************************************************************
6804 *
6805 * driver and module entry point
6806 *
6807 *****************************************************************************/
6808
fed9017e
RR		 6809/* Hardware specific file defines the PCI IDs table for that hardware module */
6810static struct pci_device_id iwl_hw_card_ids[] = {
6811 {IWL_PCI_DEVICE(0x4229, PCI_ANY_ID, iwl4965_agn_cfg)},
6812 {IWL_PCI_DEVICE(0x4230, PCI_ANY_ID, iwl4965_agn_cfg)},
5a6a256e
TW		 6813#ifdef CONFIG_IWL5000
6814 {IWL_PCI_DEVICE(0x4235, PCI_ANY_ID, iwl5300_agn_cfg)},
6815 {IWL_PCI_DEVICE(0x4232, PCI_ANY_ID, iwl5100_agn_cfg)},
6816 {IWL_PCI_DEVICE(0x423A, PCI_ANY_ID, iwl5350_agn_cfg)},
6817#endif /* CONFIG_IWL5000 */
fed9017e
RR		 6818 {0}
6819};
6820MODULE_DEVICE_TABLE(pci, iwl_hw_card_ids);
6821
6822static struct pci_driver iwl_driver = {
b481de9c 6823 .name = DRV_NAME,
fed9017e 6824 .id_table = iwl_hw_card_ids,
bb8c093b
CH		 6825 .probe = iwl4965_pci_probe,
6826 .remove = __devexit_p(iwl4965_pci_remove),
b481de9c 6827#ifdef CONFIG_PM
bb8c093b
CH		 6828 .suspend = iwl4965_pci_suspend,
6829 .resume = iwl4965_pci_resume,
b481de9c
ZY		 6830#endif
6831};
6832
bb8c093b 6833static int __init iwl4965_init(void)
b481de9c
ZY		 6834{
6835
6836 int ret;
6837 printk(KERN_INFO DRV_NAME ": " DRV_DESCRIPTION ", " DRV_VERSION "\n");
6838 printk(KERN_INFO DRV_NAME ": " DRV_COPYRIGHT "\n");
897e1cf2
RC		 6839
6840 ret = iwl4965_rate_control_register();
6841 if (ret) {
6842 IWL_ERROR("Unable to register rate control algorithm: %d\n", ret);
6843 return ret;
6844 }
6845
fed9017e 6846 ret = pci_register_driver(&iwl_driver);
b481de9c
ZY		 6847 if (ret) {
6848 IWL_ERROR("Unable to initialize PCI module\n");
897e1cf2 6849 goto error_register;
b481de9c 6850 }
b481de9c
ZY		 6851
6852 return ret;
897e1cf2 6853
897e1cf2
RC		 6854error_register:
6855 iwl4965_rate_control_unregister();
6856 return ret;
b481de9c
ZY		 6857}
6858
bb8c093b 6859static void __exit iwl4965_exit(void)
b481de9c 6860{
fed9017e 6861 pci_unregister_driver(&iwl_driver);
897e1cf2 6862 iwl4965_rate_control_unregister();
b481de9c
ZY		 6863}
6864
bb8c093b
CH		 6865module_exit(iwl4965_exit);
6866module_init(iwl4965_init);
Linux kernel - Deliverables
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