projects / deliverable / linux.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
blame | history | raw | HEAD
[PATCH] libertas: keep mesh autostart enabled while asleep
[deliverable/linux.git] / drivers / net / wireless / libertas / main.c
1 /**
2 * This file contains the major functions in WLAN
3 * driver. It includes init, exit, open, close and main
4 * thread etc..
5 */
6
7 #include <linux/moduleparam.h>
8 #include <linux/delay.h>
9 #include <linux/freezer.h>
10 #include <linux/etherdevice.h>
11 #include <linux/netdevice.h>
12 #include <linux/if_arp.h>
13 #include <linux/kthread.h>
14
15 #include <net/iw_handler.h>
16 #include <net/ieee80211.h>
17
18 #include "host.h"
19 #include "decl.h"
20 #include "dev.h"
21 #include "wext.h"
22 #include "debugfs.h"
23 #include "assoc.h"
24
25 #define DRIVER_RELEASE_VERSION "322.p1"
26 const char libertas_driver_version[] = "COMM-USB8388-" DRIVER_RELEASE_VERSION
27 #ifdef DEBUG
28 "-dbg"
29 #endif
30 "";
31
32
33 /* Module parameters */
34 unsigned int libertas_debug = 0;
35 module_param(libertas_debug, int, 0644);
36 EXPORT_SYMBOL_GPL(libertas_debug);
37
38
39 #define WLAN_TX_PWR_DEFAULT 20 /*100mW */
40 #define WLAN_TX_PWR_US_DEFAULT 20 /*100mW */
41 #define WLAN_TX_PWR_JP_DEFAULT 16 /*50mW */
42 #define WLAN_TX_PWR_FR_DEFAULT 20 /*100mW */
43 #define WLAN_TX_PWR_EMEA_DEFAULT 20 /*100mW */
44
45 /* Format { channel, frequency (MHz), maxtxpower } */
46 /* band: 'B/G', region: USA FCC/Canada IC */
47 static struct chan_freq_power channel_freq_power_US_BG[] = {
48 {1, 2412, WLAN_TX_PWR_US_DEFAULT},
49 {2, 2417, WLAN_TX_PWR_US_DEFAULT},
50 {3, 2422, WLAN_TX_PWR_US_DEFAULT},
51 {4, 2427, WLAN_TX_PWR_US_DEFAULT},
52 {5, 2432, WLAN_TX_PWR_US_DEFAULT},
53 {6, 2437, WLAN_TX_PWR_US_DEFAULT},
54 {7, 2442, WLAN_TX_PWR_US_DEFAULT},
55 {8, 2447, WLAN_TX_PWR_US_DEFAULT},
56 {9, 2452, WLAN_TX_PWR_US_DEFAULT},
57 {10, 2457, WLAN_TX_PWR_US_DEFAULT},
58 {11, 2462, WLAN_TX_PWR_US_DEFAULT}
59 };
60
61 /* band: 'B/G', region: Europe ETSI */
62 static struct chan_freq_power channel_freq_power_EU_BG[] = {
63 {1, 2412, WLAN_TX_PWR_EMEA_DEFAULT},
64 {2, 2417, WLAN_TX_PWR_EMEA_DEFAULT},
65 {3, 2422, WLAN_TX_PWR_EMEA_DEFAULT},
66 {4, 2427, WLAN_TX_PWR_EMEA_DEFAULT},
67 {5, 2432, WLAN_TX_PWR_EMEA_DEFAULT},
68 {6, 2437, WLAN_TX_PWR_EMEA_DEFAULT},
69 {7, 2442, WLAN_TX_PWR_EMEA_DEFAULT},
70 {8, 2447, WLAN_TX_PWR_EMEA_DEFAULT},
71 {9, 2452, WLAN_TX_PWR_EMEA_DEFAULT},
72 {10, 2457, WLAN_TX_PWR_EMEA_DEFAULT},
73 {11, 2462, WLAN_TX_PWR_EMEA_DEFAULT},
74 {12, 2467, WLAN_TX_PWR_EMEA_DEFAULT},
75 {13, 2472, WLAN_TX_PWR_EMEA_DEFAULT}
76 };
77
78 /* band: 'B/G', region: Spain */
79 static struct chan_freq_power channel_freq_power_SPN_BG[] = {
80 {10, 2457, WLAN_TX_PWR_DEFAULT},
81 {11, 2462, WLAN_TX_PWR_DEFAULT}
82 };
83
84 /* band: 'B/G', region: France */
85 static struct chan_freq_power channel_freq_power_FR_BG[] = {
86 {10, 2457, WLAN_TX_PWR_FR_DEFAULT},
87 {11, 2462, WLAN_TX_PWR_FR_DEFAULT},
88 {12, 2467, WLAN_TX_PWR_FR_DEFAULT},
89 {13, 2472, WLAN_TX_PWR_FR_DEFAULT}
90 };
91
92 /* band: 'B/G', region: Japan */
93 static struct chan_freq_power channel_freq_power_JPN_BG[] = {
94 {1, 2412, WLAN_TX_PWR_JP_DEFAULT},
95 {2, 2417, WLAN_TX_PWR_JP_DEFAULT},
96 {3, 2422, WLAN_TX_PWR_JP_DEFAULT},
97 {4, 2427, WLAN_TX_PWR_JP_DEFAULT},
98 {5, 2432, WLAN_TX_PWR_JP_DEFAULT},
99 {6, 2437, WLAN_TX_PWR_JP_DEFAULT},
100 {7, 2442, WLAN_TX_PWR_JP_DEFAULT},
101 {8, 2447, WLAN_TX_PWR_JP_DEFAULT},
102 {9, 2452, WLAN_TX_PWR_JP_DEFAULT},
103 {10, 2457, WLAN_TX_PWR_JP_DEFAULT},
104 {11, 2462, WLAN_TX_PWR_JP_DEFAULT},
105 {12, 2467, WLAN_TX_PWR_JP_DEFAULT},
106 {13, 2472, WLAN_TX_PWR_JP_DEFAULT},
107 {14, 2484, WLAN_TX_PWR_JP_DEFAULT}
108 };
109
110 /**
111 * the structure for channel, frequency and power
112 */
113 struct region_cfp_table {
114 u8 region;
115 struct chan_freq_power *cfp_BG;
116 int cfp_no_BG;
117 };
118
119 /**
120 * the structure for the mapping between region and CFP
121 */
122 static struct region_cfp_table region_cfp_table[] = {
123 {0x10, /*US FCC */
124 channel_freq_power_US_BG,
125 sizeof(channel_freq_power_US_BG) / sizeof(struct chan_freq_power),
126 }
127 ,
128 {0x20, /*CANADA IC */
129 channel_freq_power_US_BG,
130 sizeof(channel_freq_power_US_BG) / sizeof(struct chan_freq_power),
131 }
132 ,
133 {0x30, /*EU*/ channel_freq_power_EU_BG,
134 sizeof(channel_freq_power_EU_BG) / sizeof(struct chan_freq_power),
135 }
136 ,
137 {0x31, /*SPAIN*/ channel_freq_power_SPN_BG,
138 sizeof(channel_freq_power_SPN_BG) / sizeof(struct chan_freq_power),
139 }
140 ,
141 {0x32, /*FRANCE*/ channel_freq_power_FR_BG,
142 sizeof(channel_freq_power_FR_BG) / sizeof(struct chan_freq_power),
143 }
144 ,
145 {0x40, /*JAPAN*/ channel_freq_power_JPN_BG,
146 sizeof(channel_freq_power_JPN_BG) / sizeof(struct chan_freq_power),
147 }
148 ,
149 /*Add new region here */
150 };
151
152 /**
153 * the table to keep region code
154 */
155 u16 libertas_region_code_to_index[MRVDRV_MAX_REGION_CODE] =
156 { 0x10, 0x20, 0x30, 0x31, 0x32, 0x40 };
157
158 /**
159 * 802.11b/g supported bitrates (in 500Kb/s units)
160 */
161 u8 libertas_bg_rates[MAX_RATES] =
162 { 0x02, 0x04, 0x0b, 0x16, 0x0c, 0x12, 0x18, 0x24, 0x30, 0x48, 0x60, 0x6c,
163 0x00, 0x00 };
164
165 /**
166 * FW rate table. FW refers to rates by their index in this table, not by the
167 * rate value itself. Values of 0x00 are
168 * reserved positions.
169 */
170 static u8 fw_data_rates[MAX_RATES] =
171 { 0x02, 0x04, 0x0B, 0x16, 0x00, 0x0C, 0x12,
172 0x18, 0x24, 0x30, 0x48, 0x60, 0x6C, 0x00
173 };
174
175 /**
176 * @brief use index to get the data rate
177 *
178 * @param idx The index of data rate
179 * @return data rate or 0
180 */
181 u32 libertas_fw_index_to_data_rate(u8 idx)
182 {
183 if (idx >= sizeof(fw_data_rates))
184 idx = 0;
185 return fw_data_rates[idx];
186 }
187
188 /**
189 * @brief use rate to get the index
190 *
191 * @param rate data rate
192 * @return index or 0
193 */
194 u8 libertas_data_rate_to_fw_index(u32 rate)
195 {
196 u8 i;
197
198 if (!rate)
199 return 0;
200
201 for (i = 0; i < sizeof(fw_data_rates); i++) {
202 if (rate == fw_data_rates[i])
203 return i;
204 }
205 return 0;
206 }
207
208 /**
209 * Attributes exported through sysfs
210 */
211
212 /**
213 * @brief Get function for sysfs attribute anycast_mask
214 */
215 static ssize_t libertas_anycast_get(struct device * dev,
216 struct device_attribute *attr, char * buf)
217 {
218 struct cmd_ds_mesh_access mesh_access;
219
220 memset(&mesh_access, 0, sizeof(mesh_access));
221 libertas_prepare_and_send_command(to_net_dev(dev)->priv,
222 CMD_MESH_ACCESS,
223 CMD_ACT_MESH_GET_ANYCAST,
224 CMD_OPTION_WAITFORRSP, 0, (void *)&mesh_access);
225
226 return snprintf(buf, 12, "0x%X\n", le32_to_cpu(mesh_access.data[0]));
227 }
228
229 /**
230 * @brief Set function for sysfs attribute anycast_mask
231 */
232 static ssize_t libertas_anycast_set(struct device * dev,
233 struct device_attribute *attr, const char * buf, size_t count)
234 {
235 struct cmd_ds_mesh_access mesh_access;
236 uint32_t datum;
237
238 memset(&mesh_access, 0, sizeof(mesh_access));
239 sscanf(buf, "%x", &datum);
240 mesh_access.data[0] = cpu_to_le32(datum);
241
242 libertas_prepare_and_send_command((to_net_dev(dev))->priv,
243 CMD_MESH_ACCESS,
244 CMD_ACT_MESH_SET_ANYCAST,
245 CMD_OPTION_WAITFORRSP, 0, (void *)&mesh_access);
246 return strlen(buf);
247 }
248
249 /**
250 * anycast_mask attribute to be exported per mshX interface
251 * through sysfs (/sys/class/net/mshX/anycast_mask)
252 */
253 static DEVICE_ATTR(anycast_mask, 0644, libertas_anycast_get, libertas_anycast_set);
254
255 static ssize_t libertas_autostart_enabled_get(struct device * dev,
256 struct device_attribute *attr, char * buf)
257 {
258 struct cmd_ds_mesh_access mesh_access;
259
260 memset(&mesh_access, 0, sizeof(mesh_access));
261 libertas_prepare_and_send_command(to_net_dev(dev)->priv,
262 CMD_MESH_ACCESS,
263 CMD_ACT_MESH_GET_AUTOSTART_ENABLED,
264 CMD_OPTION_WAITFORRSP, 0, (void *)&mesh_access);
265
266 return sprintf(buf, "%d\n", le32_to_cpu(mesh_access.data[0]));
267 }
268
269 static ssize_t libertas_autostart_enabled_set(struct device * dev,
270 struct device_attribute *attr, const char * buf, size_t count)
271 {
272 struct cmd_ds_mesh_access mesh_access;
273 uint32_t datum;
274 wlan_private * priv = (to_net_dev(dev))->priv;
275 int ret;
276
277 memset(&mesh_access, 0, sizeof(mesh_access));
278 sscanf(buf, "%d", &datum);
279 mesh_access.data[0] = cpu_to_le32(datum);
280
281 ret = libertas_prepare_and_send_command(priv,
282 CMD_MESH_ACCESS,
283 CMD_ACT_MESH_SET_AUTOSTART_ENABLED,
284 CMD_OPTION_WAITFORRSP, 0, (void *)&mesh_access);
285 if (ret == 0)
286 priv->mesh_autostart_enabled = datum ? 1 : 0;
287
288 return strlen(buf);
289 }
290
291 static DEVICE_ATTR(autostart_enabled, 0644,
292 libertas_autostart_enabled_get, libertas_autostart_enabled_set);
293
294 static struct attribute *libertas_mesh_sysfs_entries[] = {
295 &dev_attr_anycast_mask.attr,
296 &dev_attr_autostart_enabled.attr,
297 NULL,
298 };
299
300 static struct attribute_group libertas_mesh_attr_group = {
301 .attrs = libertas_mesh_sysfs_entries,
302 };
303
304 /**
305 * @brief Check if the device can be open and wait if necessary.
306 *
307 * @param dev A pointer to net_device structure
308 * @return 0
309 *
310 * For USB adapter, on some systems the device open handler will be
311 * called before FW ready. Use the following flag check and wait
312 * function to work around the issue.
313 *
314 */
315 static int pre_open_check(struct net_device *dev)
316 {
317 wlan_private *priv = (wlan_private *) dev->priv;
318 wlan_adapter *adapter = priv->adapter;
319 int i = 0;
320
321 while (!adapter->fw_ready && i < 20) {
322 i++;
323 msleep_interruptible(100);
324 }
325 if (!adapter->fw_ready) {
326 lbs_pr_err("firmware not ready\n");
327 return -1;
328 }
329
330 return 0;
331 }
332
333 /**
334 * @brief This function opens the device
335 *
336 * @param dev A pointer to net_device structure
337 * @return 0
338 */
339 static int libertas_dev_open(struct net_device *dev)
340 {
341 wlan_private *priv = (wlan_private *) dev->priv;
342 wlan_adapter *adapter = priv->adapter;
343
344 lbs_deb_enter(LBS_DEB_NET);
345
346 priv->open = 1;
347
348 if (adapter->connect_status == LIBERTAS_CONNECTED) {
349 netif_carrier_on(priv->dev);
350 if (priv->mesh_dev)
351 netif_carrier_on(priv->mesh_dev);
352 } else {
353 netif_carrier_off(priv->dev);
354 if (priv->mesh_dev)
355 netif_carrier_off(priv->mesh_dev);
356 }
357
358 lbs_deb_leave(LBS_DEB_NET);
359 return 0;
360 }
361 /**
362 * @brief This function opens the mshX interface
363 *
364 * @param dev A pointer to net_device structure
365 * @return 0
366 */
367 static int libertas_mesh_open(struct net_device *dev)
368 {
369 wlan_private *priv = (wlan_private *) dev->priv ;
370
371 if (pre_open_check(dev) == -1)
372 return -1;
373 priv->mesh_open = 1 ;
374 netif_wake_queue(priv->mesh_dev);
375 if (priv->infra_open == 0)
376 return libertas_dev_open(priv->dev) ;
377 return 0;
378 }
379
380 /**
381 * @brief This function opens the ethX interface
382 *
383 * @param dev A pointer to net_device structure
384 * @return 0
385 */
386 static int libertas_open(struct net_device *dev)
387 {
388 wlan_private *priv = (wlan_private *) dev->priv ;
389
390 if(pre_open_check(dev) == -1)
391 return -1;
392 priv->infra_open = 1 ;
393 netif_wake_queue(priv->dev);
394 if (priv->open == 0)
395 return libertas_dev_open(priv->dev) ;
396 return 0;
397 }
398
399 static int libertas_dev_close(struct net_device *dev)
400 {
401 wlan_private *priv = dev->priv;
402
403 lbs_deb_enter(LBS_DEB_NET);
404
405 netif_carrier_off(priv->dev);
406 priv->open = 0;
407
408 lbs_deb_leave(LBS_DEB_NET);
409 return 0;
410 }
411
412 /**
413 * @brief This function closes the mshX interface
414 *
415 * @param dev A pointer to net_device structure
416 * @return 0
417 */
418 static int libertas_mesh_close(struct net_device *dev)
419 {
420 wlan_private *priv = (wlan_private *) (dev->priv);
421
422 priv->mesh_open = 0;
423 netif_stop_queue(priv->mesh_dev);
424 if (priv->infra_open == 0)
425 return libertas_dev_close(dev);
426 else
427 return 0;
428 }
429
430 /**
431 * @brief This function closes the ethX interface
432 *
433 * @param dev A pointer to net_device structure
434 * @return 0
435 */
436 static int libertas_close(struct net_device *dev)
437 {
438 wlan_private *priv = (wlan_private *) dev->priv;
439
440 netif_stop_queue(dev);
441 priv->infra_open = 0;
442 if (priv->mesh_open == 0)
443 return libertas_dev_close(dev);
444 else
445 return 0;
446 }
447
448
449 static int libertas_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
450 {
451 int ret = 0;
452 wlan_private *priv = dev->priv;
453
454 lbs_deb_enter(LBS_DEB_NET);
455
456 if (priv->dnld_sent || priv->adapter->TxLockFlag) {
457 priv->stats.tx_dropped++;
458 goto done;
459 }
460
461 netif_stop_queue(priv->dev);
462 if (priv->mesh_dev)
463 netif_stop_queue(priv->mesh_dev);
464
465 if (libertas_process_tx(priv, skb) == 0)
466 dev->trans_start = jiffies;
467 done:
468 lbs_deb_leave_args(LBS_DEB_NET, "ret %d", ret);
469 return ret;
470 }
471
472 /**
473 * @brief Mark mesh packets and handover them to libertas_hard_start_xmit
474 *
475 */
476 static int libertas_mesh_pre_start_xmit(struct sk_buff *skb,
477 struct net_device *dev)
478 {
479 wlan_private *priv = dev->priv;
480 int ret;
481
482 lbs_deb_enter(LBS_DEB_MESH);
483
484 SET_MESH_FRAME(skb);
485
486 ret = libertas_hard_start_xmit(skb, priv->dev);
487 lbs_deb_leave_args(LBS_DEB_MESH, "ret %d", ret);
488 return ret;
489 }
490
491 /**
492 * @brief Mark non-mesh packets and handover them to libertas_hard_start_xmit
493 *
494 */
495 static int libertas_pre_start_xmit(struct sk_buff *skb, struct net_device *dev)
496 {
497 int ret;
498
499 lbs_deb_enter(LBS_DEB_NET);
500
501 UNSET_MESH_FRAME(skb);
502
503 ret = libertas_hard_start_xmit(skb, dev);
504 lbs_deb_leave_args(LBS_DEB_NET, "ret %d", ret);
505 return ret;
506 }
507
508 static void libertas_tx_timeout(struct net_device *dev)
509 {
510 wlan_private *priv = (wlan_private *) dev->priv;
511
512 lbs_deb_enter(LBS_DEB_TX);
513
514 lbs_pr_err("tx watch dog timeout\n");
515
516 priv->dnld_sent = DNLD_RES_RECEIVED;
517 dev->trans_start = jiffies;
518
519 if (priv->adapter->currenttxskb) {
520 if (priv->adapter->radiomode == WLAN_RADIOMODE_RADIOTAP) {
521 /* If we are here, we have not received feedback from
522 the previous packet. Assume TX_FAIL and move on. */
523 priv->adapter->eventcause = 0x01000000;
524 libertas_send_tx_feedback(priv);
525 } else
526 wake_up_interruptible(&priv->waitq);
527 } else if (priv->adapter->connect_status == LIBERTAS_CONNECTED) {
528 netif_wake_queue(priv->dev);
529 if (priv->mesh_dev)
530 netif_wake_queue(priv->mesh_dev);
531 }
532
533 lbs_deb_leave(LBS_DEB_TX);
534 }
535
536 /**
537 * @brief This function returns the network statistics
538 *
539 * @param dev A pointer to wlan_private structure
540 * @return A pointer to net_device_stats structure
541 */
542 static struct net_device_stats *libertas_get_stats(struct net_device *dev)
543 {
544 wlan_private *priv = (wlan_private *) dev->priv;
545
546 return &priv->stats;
547 }
548
549 static int libertas_set_mac_address(struct net_device *dev, void *addr)
550 {
551 int ret = 0;
552 wlan_private *priv = (wlan_private *) dev->priv;
553 wlan_adapter *adapter = priv->adapter;
554 struct sockaddr *phwaddr = addr;
555
556 lbs_deb_enter(LBS_DEB_NET);
557
558 /* In case it was called from the mesh device */
559 dev = priv->dev ;
560
561 memset(adapter->current_addr, 0, ETH_ALEN);
562
563 /* dev->dev_addr is 8 bytes */
564 lbs_deb_hex(LBS_DEB_NET, "dev->dev_addr", dev->dev_addr, ETH_ALEN);
565
566 lbs_deb_hex(LBS_DEB_NET, "addr", phwaddr->sa_data, ETH_ALEN);
567 memcpy(adapter->current_addr, phwaddr->sa_data, ETH_ALEN);
568
569 ret = libertas_prepare_and_send_command(priv, CMD_802_11_MAC_ADDRESS,
570 CMD_ACT_SET,
571 CMD_OPTION_WAITFORRSP, 0, NULL);
572
573 if (ret) {
574 lbs_deb_net("set MAC address failed\n");
575 ret = -1;
576 goto done;
577 }
578
579 lbs_deb_hex(LBS_DEB_NET, "adapter->macaddr", adapter->current_addr, ETH_ALEN);
580 memcpy(dev->dev_addr, adapter->current_addr, ETH_ALEN);
581 if (priv->mesh_dev)
582 memcpy(priv->mesh_dev->dev_addr, adapter->current_addr, ETH_ALEN);
583
584 done:
585 lbs_deb_leave_args(LBS_DEB_NET, "ret %d", ret);
586 return ret;
587 }
588
589 static int libertas_copy_multicast_address(wlan_adapter * adapter,
590 struct net_device *dev)
591 {
592 int i = 0;
593 struct dev_mc_list *mcptr = dev->mc_list;
594
595 for (i = 0; i < dev->mc_count; i++) {
596 memcpy(&adapter->multicastlist[i], mcptr->dmi_addr, ETH_ALEN);
597 mcptr = mcptr->next;
598 }
599
600 return i;
601
602 }
603
604 static void libertas_set_multicast_list(struct net_device *dev)
605 {
606 wlan_private *priv = dev->priv;
607 wlan_adapter *adapter = priv->adapter;
608 int oldpacketfilter;
609
610 lbs_deb_enter(LBS_DEB_NET);
611
612 oldpacketfilter = adapter->currentpacketfilter;
613
614 if (dev->flags & IFF_PROMISC) {
615 lbs_deb_net("enable promiscuous mode\n");
616 adapter->currentpacketfilter |=
617 CMD_ACT_MAC_PROMISCUOUS_ENABLE;
618 adapter->currentpacketfilter &=
619 ~(CMD_ACT_MAC_ALL_MULTICAST_ENABLE |
620 CMD_ACT_MAC_MULTICAST_ENABLE);
621 } else {
622 /* Multicast */
623 adapter->currentpacketfilter &=
624 ~CMD_ACT_MAC_PROMISCUOUS_ENABLE;
625
626 if (dev->flags & IFF_ALLMULTI || dev->mc_count >
627 MRVDRV_MAX_MULTICAST_LIST_SIZE) {
628 lbs_deb_net( "enabling all multicast\n");
629 adapter->currentpacketfilter |=
630 CMD_ACT_MAC_ALL_MULTICAST_ENABLE;
631 adapter->currentpacketfilter &=
632 ~CMD_ACT_MAC_MULTICAST_ENABLE;
633 } else {
634 adapter->currentpacketfilter &=
635 ~CMD_ACT_MAC_ALL_MULTICAST_ENABLE;
636
637 if (!dev->mc_count) {
638 lbs_deb_net("no multicast addresses, "
639 "disabling multicast\n");
640 adapter->currentpacketfilter &=
641 ~CMD_ACT_MAC_MULTICAST_ENABLE;
642 } else {
643 int i;
644
645 adapter->currentpacketfilter |=
646 CMD_ACT_MAC_MULTICAST_ENABLE;
647
648 adapter->nr_of_multicastmacaddr =
649 libertas_copy_multicast_address(adapter, dev);
650
651 lbs_deb_net("multicast addresses: %d\n",
652 dev->mc_count);
653
654 for (i = 0; i < dev->mc_count; i++) {
655 lbs_deb_net("Multicast address %d:"
656 MAC_FMT "\n", i,
657 adapter->multicastlist[i][0],
658 adapter->multicastlist[i][1],
659 adapter->multicastlist[i][2],
660 adapter->multicastlist[i][3],
661 adapter->multicastlist[i][4],
662 adapter->multicastlist[i][5]);
663 }
664 /* send multicast addresses to firmware */
665 libertas_prepare_and_send_command(priv,
666 CMD_MAC_MULTICAST_ADR,
667 CMD_ACT_SET, 0, 0,
668 NULL);
669 }
670 }
671 }
672
673 if (adapter->currentpacketfilter != oldpacketfilter) {
674 libertas_set_mac_packet_filter(priv);
675 }
676
677 lbs_deb_leave(LBS_DEB_NET);
678 }
679
680 /**
681 * @brief This function handles the major jobs in the WLAN driver.
682 * It handles all events generated by firmware, RX data received
683 * from firmware and TX data sent from kernel.
684 *
685 * @param data A pointer to wlan_thread structure
686 * @return 0
687 */
688 static int libertas_thread(void *data)
689 {
690 struct net_device *dev = data;
691 wlan_private *priv = dev->priv;
692 wlan_adapter *adapter = priv->adapter;
693 wait_queue_t wait;
694 u8 ireg = 0;
695
696 lbs_deb_enter(LBS_DEB_THREAD);
697
698 init_waitqueue_entry(&wait, current);
699
700 for (;;) {
701 lbs_deb_thread( "main-thread 111: intcounter=%d "
702 "currenttxskb=%p dnld_sent=%d\n",
703 adapter->intcounter,
704 adapter->currenttxskb, priv->dnld_sent);
705
706 add_wait_queue(&priv->waitq, &wait);
707 set_current_state(TASK_INTERRUPTIBLE);
708 spin_lock_irq(&adapter->driver_lock);
709 if ((adapter->psstate == PS_STATE_SLEEP) ||
710 (!adapter->intcounter
711 && (priv->dnld_sent || adapter->cur_cmd ||
712 list_empty(&adapter->cmdpendingq)))) {
713 lbs_deb_thread(
714 "main-thread sleeping... Conn=%d IntC=%d PS_mode=%d PS_State=%d\n",
715 adapter->connect_status, adapter->intcounter,
716 adapter->psmode, adapter->psstate);
717 spin_unlock_irq(&adapter->driver_lock);
718 schedule();
719 } else
720 spin_unlock_irq(&adapter->driver_lock);
721
722
723 lbs_deb_thread(
724 "main-thread 222 (waking up): intcounter=%d currenttxskb=%p "
725 "dnld_sent=%d\n", adapter->intcounter,
726 adapter->currenttxskb, priv->dnld_sent);
727
728 set_current_state(TASK_RUNNING);
729 remove_wait_queue(&priv->waitq, &wait);
730 try_to_freeze();
731
732 lbs_deb_thread("main-thread 333: intcounter=%d currenttxskb=%p "
733 "dnld_sent=%d\n",
734 adapter->intcounter,
735 adapter->currenttxskb, priv->dnld_sent);
736
737 if (kthread_should_stop()
738 || adapter->surpriseremoved) {
739 lbs_deb_thread(
740 "main-thread: break from main thread: surpriseremoved=0x%x\n",
741 adapter->surpriseremoved);
742 break;
743 }
744
745
746 spin_lock_irq(&adapter->driver_lock);
747 if (adapter->intcounter) {
748 u8 int_status;
749 adapter->intcounter = 0;
750 int_status = priv->hw_get_int_status(priv, &ireg);
751
752 if (int_status) {
753 lbs_deb_thread(
754 "main-thread: reading HOST_INT_STATUS_REG failed\n");
755 spin_unlock_irq(&adapter->driver_lock);
756 continue;
757 }
758 adapter->hisregcpy |= ireg;
759 }
760
761 lbs_deb_thread("main-thread 444: intcounter=%d currenttxskb=%p "
762 "dnld_sent=%d\n",
763 adapter->intcounter,
764 adapter->currenttxskb, priv->dnld_sent);
765
766 /* command response? */
767 if (adapter->hisregcpy & MRVDRV_CMD_UPLD_RDY) {
768 lbs_deb_thread("main-thread: cmd response ready\n");
769
770 adapter->hisregcpy &= ~MRVDRV_CMD_UPLD_RDY;
771 spin_unlock_irq(&adapter->driver_lock);
772 libertas_process_rx_command(priv);
773 spin_lock_irq(&adapter->driver_lock);
774 }
775
776 /* Any Card Event */
777 if (adapter->hisregcpy & MRVDRV_CARDEVENT) {
778 lbs_deb_thread("main-thread: Card Event Activity\n");
779
780 adapter->hisregcpy &= ~MRVDRV_CARDEVENT;
781
782 if (priv->hw_read_event_cause(priv)) {
783 lbs_pr_alert(
784 "main-thread: hw_read_event_cause failed\n");
785 spin_unlock_irq(&adapter->driver_lock);
786 continue;
787 }
788 spin_unlock_irq(&adapter->driver_lock);
789 libertas_process_event(priv);
790 } else
791 spin_unlock_irq(&adapter->driver_lock);
792
793 /* Check if we need to confirm Sleep Request received previously */
794 if (adapter->psstate == PS_STATE_PRE_SLEEP) {
795 if (!priv->dnld_sent && !adapter->cur_cmd) {
796 if (adapter->connect_status ==
797 LIBERTAS_CONNECTED) {
798 lbs_deb_thread(
799 "main_thread: PRE_SLEEP--intcounter=%d currenttxskb=%p "
800 "dnld_sent=%d cur_cmd=%p, confirm now\n",
801 adapter->intcounter,
802 adapter->currenttxskb,
803 priv->dnld_sent,
804 adapter->cur_cmd);
805
806 libertas_ps_confirm_sleep(priv,
807 (u16) adapter->psmode);
808 } else {
809 /* workaround for firmware sending
810 * deauth/linkloss event immediately
811 * after sleep request, remove this
812 * after firmware fixes it
813 */
814 adapter->psstate = PS_STATE_AWAKE;
815 lbs_pr_alert(
816 "main-thread: ignore PS_SleepConfirm in non-connected state\n");
817 }
818 }
819 }
820
821 /* The PS state is changed during processing of Sleep Request
822 * event above
823 */
824 if ((priv->adapter->psstate == PS_STATE_SLEEP) ||
825 (priv->adapter->psstate == PS_STATE_PRE_SLEEP))
826 continue;
827
828 /* Execute the next command */
829 if (!priv->dnld_sent && !priv->adapter->cur_cmd)
830 libertas_execute_next_command(priv);
831
832 /* Wake-up command waiters which can't sleep in
833 * libertas_prepare_and_send_command
834 */
835 if (!adapter->nr_cmd_pending)
836 wake_up_all(&adapter->cmd_pending);
837
838 libertas_tx_runqueue(priv);
839 }
840
841 del_timer(&adapter->command_timer);
842 adapter->nr_cmd_pending = 0;
843 wake_up_all(&adapter->cmd_pending);
844
845 lbs_deb_leave(LBS_DEB_THREAD);
846 return 0;
847 }
848
849 /**
850 * @brief This function downloads firmware image, gets
851 * HW spec from firmware and set basic parameters to
852 * firmware.
853 *
854 * @param priv A pointer to wlan_private structure
855 * @return 0 or -1
856 */
857 static int wlan_setup_station_hw(wlan_private * priv)
858 {
859 int ret = -1;
860 wlan_adapter *adapter = priv->adapter;
861 struct cmd_ds_mesh_access mesh_access;
862
863 lbs_deb_enter(LBS_DEB_FW);
864
865 ret = priv->hw_prog_firmware(priv);
866
867 if (ret) {
868 lbs_deb_fw("bootloader in invalid state\n");
869 ret = -1;
870 goto done;
871 }
872
873 /*
874 * Read MAC address from HW
875 */
876 memset(adapter->current_addr, 0xff, ETH_ALEN);
877
878 ret = libertas_prepare_and_send_command(priv, CMD_GET_HW_SPEC,
879 0, CMD_OPTION_WAITFORRSP, 0, NULL);
880
881 if (ret) {
882 ret = -1;
883 goto done;
884 }
885
886 libertas_set_mac_packet_filter(priv);
887
888 /* Get the supported Data rates */
889 ret = libertas_prepare_and_send_command(priv, CMD_802_11_DATA_RATE,
890 CMD_ACT_GET_TX_RATE,
891 CMD_OPTION_WAITFORRSP, 0, NULL);
892
893 if (ret) {
894 ret = -1;
895 goto done;
896 }
897
898 /* Disable mesh autostart */
899 if (priv->mesh_dev) {
900 memset(&mesh_access, 0, sizeof(mesh_access));
901 mesh_access.data[0] = cpu_to_le32(0);
902 ret = libertas_prepare_and_send_command(priv,
903 CMD_MESH_ACCESS,
904 CMD_ACT_MESH_SET_AUTOSTART_ENABLED,
905 CMD_OPTION_WAITFORRSP, 0, (void *)&mesh_access);
906 if (ret) {
907 ret = -1;
908 goto done;
909 }
910 priv->mesh_autostart_enabled = 0;
911 }
912
913 ret = 0;
914 done:
915 lbs_deb_leave_args(LBS_DEB_FW, "ret %d", ret);
916 return ret;
917 }
918
919 static void command_timer_fn(unsigned long data);
920
921 /**
922 * This function handles the timeout of command sending.
923 * It will re-send the same command again.
924 */
925 static void command_timer_fn(unsigned long data)
926 {
927 wlan_private *priv = (wlan_private *)data;
928 wlan_adapter *adapter = priv->adapter;
929 struct cmd_ctrl_node *ptempnode;
930 struct cmd_ds_command *cmd;
931 unsigned long flags;
932
933 ptempnode = adapter->cur_cmd;
934 if (ptempnode == NULL) {
935 lbs_deb_fw("ptempnode empty\n");
936 return;
937 }
938
939 cmd = (struct cmd_ds_command *)ptempnode->bufvirtualaddr;
940 if (!cmd) {
941 lbs_deb_fw("cmd is NULL\n");
942 return;
943 }
944
945 lbs_deb_fw("command_timer_fn fired, cmd %x\n", cmd->command);
946
947 if (!adapter->fw_ready)
948 return;
949
950 spin_lock_irqsave(&adapter->driver_lock, flags);
951 adapter->cur_cmd = NULL;
952 spin_unlock_irqrestore(&adapter->driver_lock, flags);
953
954 lbs_deb_fw("re-sending same command because of timeout\n");
955 libertas_queue_cmd(adapter, ptempnode, 0);
956
957 wake_up_interruptible(&priv->waitq);
958
959 return;
960 }
961
962 static void libertas_free_adapter(wlan_private * priv)
963 {
964 wlan_adapter *adapter = priv->adapter;
965
966 if (!adapter) {
967 lbs_deb_fw("why double free adapter?\n");
968 return;
969 }
970
971 lbs_deb_fw("free command buffer\n");
972 libertas_free_cmd_buffer(priv);
973
974 lbs_deb_fw("free command_timer\n");
975 del_timer(&adapter->command_timer);
976
977 lbs_deb_fw("free scan results table\n");
978 kfree(adapter->networks);
979 adapter->networks = NULL;
980
981 /* Free the adapter object itself */
982 lbs_deb_fw("free adapter\n");
983 kfree(adapter);
984 priv->adapter = NULL;
985 }
986
987 static int wlan_allocate_adapter(wlan_private * priv)
988 {
989 size_t bufsize;
990 wlan_adapter *adapter = priv->adapter;
991
992 /* Allocate buffer to store the BSSID list */
993 bufsize = MAX_NETWORK_COUNT * sizeof(struct bss_descriptor);
994 adapter->networks = kzalloc(bufsize, GFP_KERNEL);
995 if (!adapter->networks) {
996 lbs_pr_err("Out of memory allocating beacons\n");
997 libertas_free_adapter(priv);
998 return -ENOMEM;
999 }
1000
1001 /* Allocate the command buffers */
1002 libertas_allocate_cmd_buffer(priv);
1003
1004 memset(&adapter->libertas_ps_confirm_sleep, 0, sizeof(struct PS_CMD_ConfirmSleep));
1005 adapter->libertas_ps_confirm_sleep.seqnum = cpu_to_le16(++adapter->seqnum);
1006 adapter->libertas_ps_confirm_sleep.command =
1007 cpu_to_le16(CMD_802_11_PS_MODE);
1008 adapter->libertas_ps_confirm_sleep.size =
1009 cpu_to_le16(sizeof(struct PS_CMD_ConfirmSleep));
1010 adapter->libertas_ps_confirm_sleep.result = 0;
1011 adapter->libertas_ps_confirm_sleep.action =
1012 cpu_to_le16(CMD_SUBCMD_SLEEP_CONFIRMED);
1013
1014 return 0;
1015 }
1016
1017 static void wlan_init_adapter(wlan_private * priv)
1018 {
1019 wlan_adapter *adapter = priv->adapter;
1020 int i;
1021
1022 adapter->connect_status = LIBERTAS_DISCONNECTED;
1023 memset(adapter->current_addr, 0xff, ETH_ALEN);
1024
1025 /* 802.11 specific */
1026 adapter->secinfo.wep_enabled = 0;
1027 for (i = 0; i < sizeof(adapter->wep_keys) / sizeof(adapter->wep_keys[0]);
1028 i++)
1029 memset(&adapter->wep_keys[i], 0, sizeof(struct enc_key));
1030 adapter->wep_tx_keyidx = 0;
1031 adapter->secinfo.auth_mode = IW_AUTH_ALG_OPEN_SYSTEM;
1032 adapter->mode = IW_MODE_INFRA;
1033
1034 adapter->pending_assoc_req = NULL;
1035 adapter->in_progress_assoc_req = NULL;
1036
1037 /* Initialize scan result lists */
1038 INIT_LIST_HEAD(&adapter->network_free_list);
1039 INIT_LIST_HEAD(&adapter->network_list);
1040 for (i = 0; i < MAX_NETWORK_COUNT; i++) {
1041 list_add_tail(&adapter->networks[i].list,
1042 &adapter->network_free_list);
1043 }
1044
1045 mutex_init(&adapter->lock);
1046
1047 memset(&adapter->curbssparams, 0, sizeof(adapter->curbssparams));
1048 adapter->curbssparams.channel = DEFAULT_AD_HOC_CHANNEL;
1049
1050 /* PnP and power profile */
1051 adapter->surpriseremoved = 0;
1052
1053 adapter->currentpacketfilter =
1054 CMD_ACT_MAC_RX_ON | CMD_ACT_MAC_TX_ON;
1055
1056 adapter->radioon = RADIO_ON;
1057
1058 adapter->auto_rate = 1;
1059 adapter->cur_rate = 0;
1060
1061 // set default capabilities
1062 adapter->capability = WLAN_CAPABILITY_SHORT_PREAMBLE;
1063
1064 adapter->psmode = WLAN802_11POWERMODECAM;
1065
1066 adapter->psstate = PS_STATE_FULL_POWER;
1067 adapter->needtowakeup = 0;
1068
1069 adapter->intcounter = 0;
1070
1071 adapter->currenttxskb = NULL;
1072
1073 memset(&adapter->tx_queue_ps, 0, NR_TX_QUEUE*sizeof(struct sk_buff*));
1074 adapter->tx_queue_idx = 0;
1075 spin_lock_init(&adapter->txqueue_lock);
1076
1077 return;
1078 }
1079
1080 static int libertas_init_fw(wlan_private * priv)
1081 {
1082 int ret = -1;
1083 wlan_adapter *adapter = priv->adapter;
1084
1085 lbs_deb_enter(LBS_DEB_FW);
1086
1087 /* Allocate adapter structure */
1088 if ((ret = wlan_allocate_adapter(priv)) != 0)
1089 goto done;
1090
1091 /* init adapter structure */
1092 wlan_init_adapter(priv);
1093
1094 /* init timer etc. */
1095 setup_timer(&adapter->command_timer, command_timer_fn,
1096 (unsigned long)priv);
1097
1098 /* download fimrware etc. */
1099 if ((ret = wlan_setup_station_hw(priv)) != 0) {
1100 del_timer_sync(&adapter->command_timer);
1101 goto done;
1102 }
1103
1104 /* init 802.11d */
1105 libertas_init_11d(priv);
1106
1107 ret = 0;
1108 done:
1109 lbs_deb_leave_args(LBS_DEB_FW, "ret %d", ret);
1110 return ret;
1111 }
1112
1113 /**
1114 * @brief This function adds the card. it will probe the
1115 * card, allocate the wlan_priv and initialize the device.
1116 *
1117 * @param card A pointer to card
1118 * @return A pointer to wlan_private structure
1119 */
1120 wlan_private *libertas_add_card(void *card, struct device *dmdev)
1121 {
1122 struct net_device *dev = NULL;
1123 wlan_private *priv = NULL;
1124
1125 lbs_deb_enter(LBS_DEB_NET);
1126
1127 /* Allocate an Ethernet device and register it */
1128 if (!(dev = alloc_etherdev(sizeof(wlan_private)))) {
1129 lbs_pr_err("init ethX device failed\n");
1130 return NULL;
1131 }
1132 priv = dev->priv;
1133
1134 /* allocate buffer for wlan_adapter */
1135 if (!(priv->adapter = kzalloc(sizeof(wlan_adapter), GFP_KERNEL))) {
1136 lbs_pr_err("allocate buffer for wlan_adapter failed\n");
1137 goto err_kzalloc;
1138 }
1139
1140 priv->dev = dev;
1141 priv->card = card;
1142 priv->mesh_open = 0;
1143 priv->infra_open = 0;
1144
1145 SET_MODULE_OWNER(dev);
1146
1147 /* Setup the OS Interface to our functions */
1148 dev->open = libertas_open;
1149 dev->hard_start_xmit = libertas_pre_start_xmit;
1150 dev->stop = libertas_close;
1151 dev->set_mac_address = libertas_set_mac_address;
1152 dev->tx_timeout = libertas_tx_timeout;
1153 dev->get_stats = libertas_get_stats;
1154 dev->watchdog_timeo = 5 * HZ;
1155 dev->ethtool_ops = &libertas_ethtool_ops;
1156 #ifdef WIRELESS_EXT
1157 dev->wireless_handlers = (struct iw_handler_def *)&libertas_handler_def;
1158 #endif
1159 #define NETIF_F_DYNALLOC 16
1160 dev->features |= NETIF_F_DYNALLOC;
1161 dev->flags |= IFF_BROADCAST | IFF_MULTICAST;
1162 dev->set_multicast_list = libertas_set_multicast_list;
1163
1164 SET_NETDEV_DEV(dev, dmdev);
1165
1166 INIT_LIST_HEAD(&priv->adapter->cmdfreeq);
1167 INIT_LIST_HEAD(&priv->adapter->cmdpendingq);
1168
1169 spin_lock_init(&priv->adapter->driver_lock);
1170 init_waitqueue_head(&priv->adapter->cmd_pending);
1171 priv->adapter->nr_cmd_pending = 0;
1172 goto done;
1173
1174 err_kzalloc:
1175 free_netdev(dev);
1176 priv = NULL;
1177 done:
1178 lbs_deb_leave_args(LBS_DEB_NET, "priv %p", priv);
1179 return priv;
1180 }
1181 EXPORT_SYMBOL_GPL(libertas_add_card);
1182
1183 int libertas_activate_card(wlan_private *priv)
1184 {
1185 struct net_device *dev = priv->dev;
1186 int ret = -1;
1187
1188 lbs_deb_enter(LBS_DEB_MAIN);
1189
1190 lbs_deb_thread("Starting main thread...\n");
1191 init_waitqueue_head(&priv->waitq);
1192 priv->main_thread = kthread_run(libertas_thread, dev, "libertas_main");
1193 if (IS_ERR(priv->main_thread)) {
1194 lbs_deb_thread("Error creating main thread.\n");
1195 goto done;
1196 }
1197
1198 priv->assoc_thread =
1199 create_singlethread_workqueue("libertas_assoc");
1200 INIT_DELAYED_WORK(&priv->assoc_work, libertas_association_worker);
1201 INIT_WORK(&priv->sync_channel, libertas_sync_channel);
1202
1203 /*
1204 * Register the device. Fillup the private data structure with
1205 * relevant information from the card and request for the required
1206 * IRQ.
1207 */
1208 if (priv->hw_register_dev(priv) < 0) {
1209 lbs_pr_err("failed to register WLAN device\n");
1210 goto err_registerdev;
1211 }
1212
1213 /* init FW and HW */
1214 if (libertas_init_fw(priv)) {
1215 lbs_pr_err("firmware init failed\n");
1216 goto err_registerdev;
1217 }
1218
1219 if (register_netdev(dev)) {
1220 lbs_pr_err("cannot register ethX device\n");
1221 goto err_init_fw;
1222 }
1223
1224 lbs_pr_info("%s: Marvell WLAN 802.11 adapter\n", dev->name);
1225
1226 libertas_debugfs_init_one(priv, dev);
1227
1228 ret = 0;
1229 goto done;
1230
1231 err_init_fw:
1232 priv->hw_unregister_dev(priv);
1233 err_registerdev:
1234 destroy_workqueue(priv->assoc_thread);
1235 /* Stop the thread servicing the interrupts */
1236 wake_up_interruptible(&priv->waitq);
1237 kthread_stop(priv->main_thread);
1238 done:
1239 lbs_deb_leave_args(LBS_DEB_NET, "ret %d", ret);
1240 return ret;
1241 }
1242 EXPORT_SYMBOL_GPL(libertas_activate_card);
1243
1244
1245 /**
1246 * @brief This function adds mshX interface
1247 *
1248 * @param priv A pointer to the wlan_private structure
1249 * @return 0 if successful, -X otherwise
1250 */
1251 int libertas_add_mesh(wlan_private *priv, struct device *dev)
1252 {
1253 struct net_device *mesh_dev = NULL;
1254 int ret = 0;
1255
1256 lbs_deb_enter(LBS_DEB_MESH);
1257
1258 /* Allocate a virtual mesh device */
1259 if (!(mesh_dev = alloc_netdev(0, "msh%d", ether_setup))) {
1260 lbs_deb_mesh("init mshX device failed\n");
1261 ret = -ENOMEM;
1262 goto done;
1263 }
1264 mesh_dev->priv = priv;
1265 priv->mesh_dev = mesh_dev;
1266
1267 SET_MODULE_OWNER(mesh_dev);
1268
1269 mesh_dev->open = libertas_mesh_open;
1270 mesh_dev->hard_start_xmit = libertas_mesh_pre_start_xmit;
1271 mesh_dev->stop = libertas_mesh_close;
1272 mesh_dev->get_stats = libertas_get_stats;
1273 mesh_dev->set_mac_address = libertas_set_mac_address;
1274 mesh_dev->ethtool_ops = &libertas_ethtool_ops;
1275 memcpy(mesh_dev->dev_addr, priv->dev->dev_addr,
1276 sizeof(priv->dev->dev_addr));
1277
1278 SET_NETDEV_DEV(priv->mesh_dev, dev);
1279
1280 #ifdef WIRELESS_EXT
1281 mesh_dev->wireless_handlers = (struct iw_handler_def *)&mesh_handler_def;
1282 #endif
1283 #define NETIF_F_DYNALLOC 16
1284
1285 /* Register virtual mesh interface */
1286 ret = register_netdev(mesh_dev);
1287 if (ret) {
1288 lbs_pr_err("cannot register mshX virtual interface\n");
1289 goto err_free;
1290 }
1291
1292 ret = sysfs_create_group(&(mesh_dev->dev.kobj), &libertas_mesh_attr_group);
1293 if (ret)
1294 goto err_unregister;
1295
1296 /* Everything successful */
1297 ret = 0;
1298 goto done;
1299
1300 err_unregister:
1301 unregister_netdev(mesh_dev);
1302
1303 err_free:
1304 free_netdev(mesh_dev);
1305
1306 done:
1307 lbs_deb_leave_args(LBS_DEB_MESH, "ret %d", ret);
1308 return ret;
1309 }
1310 EXPORT_SYMBOL_GPL(libertas_add_mesh);
1311
1312 static void wake_pending_cmdnodes(wlan_private *priv)
1313 {
1314 struct cmd_ctrl_node *cmdnode;
1315 unsigned long flags;
1316
1317 lbs_deb_enter(LBS_DEB_HOST);
1318
1319 spin_lock_irqsave(&priv->adapter->driver_lock, flags);
1320 list_for_each_entry(cmdnode, &priv->adapter->cmdpendingq, list) {
1321 cmdnode->cmdwaitqwoken = 1;
1322 wake_up_interruptible(&cmdnode->cmdwait_q);
1323 }
1324 spin_unlock_irqrestore(&priv->adapter->driver_lock, flags);
1325 }
1326
1327
1328 int libertas_remove_card(wlan_private *priv)
1329 {
1330 wlan_adapter *adapter;
1331 struct net_device *dev;
1332 union iwreq_data wrqu;
1333
1334 lbs_deb_enter(LBS_DEB_NET);
1335
1336 if (!priv)
1337 goto out;
1338
1339 adapter = priv->adapter;
1340
1341 if (!adapter)
1342 goto out;
1343
1344 dev = priv->dev;
1345
1346 netif_stop_queue(priv->dev);
1347 netif_carrier_off(priv->dev);
1348
1349 wake_pending_cmdnodes(priv);
1350
1351 unregister_netdev(dev);
1352
1353 cancel_delayed_work(&priv->assoc_work);
1354 destroy_workqueue(priv->assoc_thread);
1355
1356 if (adapter->psmode == WLAN802_11POWERMODEMAX_PSP) {
1357 adapter->psmode = WLAN802_11POWERMODECAM;
1358 libertas_ps_wakeup(priv, CMD_OPTION_WAITFORRSP);
1359 }
1360
1361 memset(wrqu.ap_addr.sa_data, 0xaa, ETH_ALEN);
1362 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
1363 wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL);
1364
1365 adapter->surpriseremoved = 1;
1366
1367 /* Stop the thread servicing the interrupts */
1368 kthread_stop(priv->main_thread);
1369
1370 libertas_debugfs_remove_one(priv);
1371
1372 lbs_deb_net("free adapter\n");
1373 libertas_free_adapter(priv);
1374
1375 lbs_deb_net("unregister finish\n");
1376
1377 priv->dev = NULL;
1378 free_netdev(dev);
1379
1380 out:
1381 lbs_deb_leave(LBS_DEB_NET);
1382 return 0;
1383 }
1384 EXPORT_SYMBOL_GPL(libertas_remove_card);
1385
1386
1387 void libertas_remove_mesh(wlan_private *priv)
1388 {
1389 struct net_device *mesh_dev;
1390
1391 lbs_deb_enter(LBS_DEB_NET);
1392
1393 if (!priv)
1394 goto out;
1395
1396 mesh_dev = priv->mesh_dev;
1397
1398 netif_stop_queue(mesh_dev);
1399 netif_carrier_off(priv->mesh_dev);
1400
1401 sysfs_remove_group(&(mesh_dev->dev.kobj), &libertas_mesh_attr_group);
1402 unregister_netdev(mesh_dev);
1403
1404 priv->mesh_dev = NULL ;
1405 free_netdev(mesh_dev);
1406
1407 out:
1408 lbs_deb_leave(LBS_DEB_NET);
1409 }
1410 EXPORT_SYMBOL_GPL(libertas_remove_mesh);
1411
1412 /**
1413 * @brief This function finds the CFP in
1414 * region_cfp_table based on region and band parameter.
1415 *
1416 * @param region The region code
1417 * @param band The band
1418 * @param cfp_no A pointer to CFP number
1419 * @return A pointer to CFP
1420 */
1421 struct chan_freq_power *libertas_get_region_cfp_table(u8 region, u8 band, int *cfp_no)
1422 {
1423 int i, end;
1424
1425 lbs_deb_enter(LBS_DEB_MAIN);
1426
1427 end = sizeof(region_cfp_table)/sizeof(struct region_cfp_table);
1428
1429 for (i = 0; i < end ; i++) {
1430 lbs_deb_main("region_cfp_table[i].region=%d\n",
1431 region_cfp_table[i].region);
1432 if (region_cfp_table[i].region == region) {
1433 *cfp_no = region_cfp_table[i].cfp_no_BG;
1434 lbs_deb_leave(LBS_DEB_MAIN);
1435 return region_cfp_table[i].cfp_BG;
1436 }
1437 }
1438
1439 lbs_deb_leave_args(LBS_DEB_MAIN, "ret NULL");
1440 return NULL;
1441 }
1442
1443 int libertas_set_regiontable(wlan_private * priv, u8 region, u8 band)
1444 {
1445 wlan_adapter *adapter = priv->adapter;
1446 int ret = 0;
1447 int i = 0;
1448
1449 struct chan_freq_power *cfp;
1450 int cfp_no;
1451
1452 lbs_deb_enter(LBS_DEB_MAIN);
1453
1454 memset(adapter->region_channel, 0, sizeof(adapter->region_channel));
1455
1456 {
1457 cfp = libertas_get_region_cfp_table(region, band, &cfp_no);
1458 if (cfp != NULL) {
1459 adapter->region_channel[i].nrcfp = cfp_no;
1460 adapter->region_channel[i].CFP = cfp;
1461 } else {
1462 lbs_deb_main("wrong region code %#x in band B/G\n",
1463 region);
1464 ret = -1;
1465 goto out;
1466 }
1467 adapter->region_channel[i].valid = 1;
1468 adapter->region_channel[i].region = region;
1469 adapter->region_channel[i].band = band;
1470 i++;
1471 }
1472 out:
1473 lbs_deb_leave_args(LBS_DEB_MAIN, "ret %d", ret);
1474 return ret;
1475 }
1476
1477 /**
1478 * @brief This function handles the interrupt. it will change PS
1479 * state if applicable. it will wake up main_thread to handle
1480 * the interrupt event as well.
1481 *
1482 * @param dev A pointer to net_device structure
1483 * @return n/a
1484 */
1485 void libertas_interrupt(struct net_device *dev)
1486 {
1487 wlan_private *priv = dev->priv;
1488
1489 lbs_deb_enter(LBS_DEB_THREAD);
1490
1491 lbs_deb_thread("libertas_interrupt: intcounter=%d\n",
1492 priv->adapter->intcounter);
1493
1494 priv->adapter->intcounter++;
1495
1496 if (priv->adapter->psstate == PS_STATE_SLEEP) {
1497 priv->adapter->psstate = PS_STATE_AWAKE;
1498 netif_wake_queue(dev);
1499 if (priv->mesh_dev)
1500 netif_wake_queue(priv->mesh_dev);
1501 }
1502
1503 wake_up_interruptible(&priv->waitq);
1504
1505 lbs_deb_leave(LBS_DEB_THREAD);
1506 }
1507 EXPORT_SYMBOL_GPL(libertas_interrupt);
1508
1509 int libertas_reset_device(wlan_private *priv)
1510 {
1511 int ret;
1512
1513 lbs_deb_enter(LBS_DEB_MAIN);
1514 ret = libertas_prepare_and_send_command(priv, CMD_802_11_RESET,
1515 CMD_ACT_HALT, 0, 0, NULL);
1516 msleep_interruptible(10);
1517
1518 lbs_deb_leave_args(LBS_DEB_MAIN, "ret %d", ret);
1519 return ret;
1520 }
1521 EXPORT_SYMBOL_GPL(libertas_reset_device);
1522
1523 static int libertas_init_module(void)
1524 {
1525 lbs_deb_enter(LBS_DEB_MAIN);
1526 libertas_debugfs_init();
1527 lbs_deb_leave(LBS_DEB_MAIN);
1528 return 0;
1529 }
1530
1531 static void libertas_exit_module(void)
1532 {
1533 lbs_deb_enter(LBS_DEB_MAIN);
1534
1535 libertas_debugfs_remove();
1536
1537 lbs_deb_leave(LBS_DEB_MAIN);
1538 }
1539
1540 module_init(libertas_init_module);
1541 module_exit(libertas_exit_module);
1542
1543 MODULE_DESCRIPTION("Libertas WLAN Driver Library");
1544 MODULE_AUTHOR("Marvell International Ltd.");
1545 MODULE_LICENSE("GPL");
Linux kernel - Deliverables
This page took 0.061481 seconds and 6 git commands to generate.