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libertas: fix lbs_rtap attribute in sysfs
[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 #include "join.h"
25
26 #define DRIVER_RELEASE_VERSION "323.p0"
27 const char lbs_driver_version[] = "COMM-USB8388-" DRIVER_RELEASE_VERSION
28 #ifdef DEBUG
29 "-dbg"
30 #endif
31 "";
32
33
34 /* Module parameters */
35 unsigned int lbs_debug;
36 EXPORT_SYMBOL_GPL(lbs_debug);
37 module_param_named(libertas_debug, lbs_debug, int, 0644);
38
39
40 #define LBS_TX_PWR_DEFAULT 20 /*100mW */
41 #define LBS_TX_PWR_US_DEFAULT 20 /*100mW */
42 #define LBS_TX_PWR_JP_DEFAULT 16 /*50mW */
43 #define LBS_TX_PWR_FR_DEFAULT 20 /*100mW */
44 #define LBS_TX_PWR_EMEA_DEFAULT 20 /*100mW */
45
46 /* Format { channel, frequency (MHz), maxtxpower } */
47 /* band: 'B/G', region: USA FCC/Canada IC */
48 static struct chan_freq_power channel_freq_power_US_BG[] = {
49 {1, 2412, LBS_TX_PWR_US_DEFAULT},
50 {2, 2417, LBS_TX_PWR_US_DEFAULT},
51 {3, 2422, LBS_TX_PWR_US_DEFAULT},
52 {4, 2427, LBS_TX_PWR_US_DEFAULT},
53 {5, 2432, LBS_TX_PWR_US_DEFAULT},
54 {6, 2437, LBS_TX_PWR_US_DEFAULT},
55 {7, 2442, LBS_TX_PWR_US_DEFAULT},
56 {8, 2447, LBS_TX_PWR_US_DEFAULT},
57 {9, 2452, LBS_TX_PWR_US_DEFAULT},
58 {10, 2457, LBS_TX_PWR_US_DEFAULT},
59 {11, 2462, LBS_TX_PWR_US_DEFAULT}
60 };
61
62 /* band: 'B/G', region: Europe ETSI */
63 static struct chan_freq_power channel_freq_power_EU_BG[] = {
64 {1, 2412, LBS_TX_PWR_EMEA_DEFAULT},
65 {2, 2417, LBS_TX_PWR_EMEA_DEFAULT},
66 {3, 2422, LBS_TX_PWR_EMEA_DEFAULT},
67 {4, 2427, LBS_TX_PWR_EMEA_DEFAULT},
68 {5, 2432, LBS_TX_PWR_EMEA_DEFAULT},
69 {6, 2437, LBS_TX_PWR_EMEA_DEFAULT},
70 {7, 2442, LBS_TX_PWR_EMEA_DEFAULT},
71 {8, 2447, LBS_TX_PWR_EMEA_DEFAULT},
72 {9, 2452, LBS_TX_PWR_EMEA_DEFAULT},
73 {10, 2457, LBS_TX_PWR_EMEA_DEFAULT},
74 {11, 2462, LBS_TX_PWR_EMEA_DEFAULT},
75 {12, 2467, LBS_TX_PWR_EMEA_DEFAULT},
76 {13, 2472, LBS_TX_PWR_EMEA_DEFAULT}
77 };
78
79 /* band: 'B/G', region: Spain */
80 static struct chan_freq_power channel_freq_power_SPN_BG[] = {
81 {10, 2457, LBS_TX_PWR_DEFAULT},
82 {11, 2462, LBS_TX_PWR_DEFAULT}
83 };
84
85 /* band: 'B/G', region: France */
86 static struct chan_freq_power channel_freq_power_FR_BG[] = {
87 {10, 2457, LBS_TX_PWR_FR_DEFAULT},
88 {11, 2462, LBS_TX_PWR_FR_DEFAULT},
89 {12, 2467, LBS_TX_PWR_FR_DEFAULT},
90 {13, 2472, LBS_TX_PWR_FR_DEFAULT}
91 };
92
93 /* band: 'B/G', region: Japan */
94 static struct chan_freq_power channel_freq_power_JPN_BG[] = {
95 {1, 2412, LBS_TX_PWR_JP_DEFAULT},
96 {2, 2417, LBS_TX_PWR_JP_DEFAULT},
97 {3, 2422, LBS_TX_PWR_JP_DEFAULT},
98 {4, 2427, LBS_TX_PWR_JP_DEFAULT},
99 {5, 2432, LBS_TX_PWR_JP_DEFAULT},
100 {6, 2437, LBS_TX_PWR_JP_DEFAULT},
101 {7, 2442, LBS_TX_PWR_JP_DEFAULT},
102 {8, 2447, LBS_TX_PWR_JP_DEFAULT},
103 {9, 2452, LBS_TX_PWR_JP_DEFAULT},
104 {10, 2457, LBS_TX_PWR_JP_DEFAULT},
105 {11, 2462, LBS_TX_PWR_JP_DEFAULT},
106 {12, 2467, LBS_TX_PWR_JP_DEFAULT},
107 {13, 2472, LBS_TX_PWR_JP_DEFAULT},
108 {14, 2484, LBS_TX_PWR_JP_DEFAULT}
109 };
110
111 /**
112 * the structure for channel, frequency and power
113 */
114 struct region_cfp_table {
115 u8 region;
116 struct chan_freq_power *cfp_BG;
117 int cfp_no_BG;
118 };
119
120 /**
121 * the structure for the mapping between region and CFP
122 */
123 static struct region_cfp_table region_cfp_table[] = {
124 {0x10, /*US FCC */
125 channel_freq_power_US_BG,
126 ARRAY_SIZE(channel_freq_power_US_BG),
127 }
128 ,
129 {0x20, /*CANADA IC */
130 channel_freq_power_US_BG,
131 ARRAY_SIZE(channel_freq_power_US_BG),
132 }
133 ,
134 {0x30, /*EU*/ channel_freq_power_EU_BG,
135 ARRAY_SIZE(channel_freq_power_EU_BG),
136 }
137 ,
138 {0x31, /*SPAIN*/ channel_freq_power_SPN_BG,
139 ARRAY_SIZE(channel_freq_power_SPN_BG),
140 }
141 ,
142 {0x32, /*FRANCE*/ channel_freq_power_FR_BG,
143 ARRAY_SIZE(channel_freq_power_FR_BG),
144 }
145 ,
146 {0x40, /*JAPAN*/ channel_freq_power_JPN_BG,
147 ARRAY_SIZE(channel_freq_power_JPN_BG),
148 }
149 ,
150 /*Add new region here */
151 };
152
153 /**
154 * the table to keep region code
155 */
156 u16 lbs_region_code_to_index[MRVDRV_MAX_REGION_CODE] =
157 { 0x10, 0x20, 0x30, 0x31, 0x32, 0x40 };
158
159 /**
160 * 802.11b/g supported bitrates (in 500Kb/s units)
161 */
162 u8 lbs_bg_rates[MAX_RATES] =
163 { 0x02, 0x04, 0x0b, 0x16, 0x0c, 0x12, 0x18, 0x24, 0x30, 0x48, 0x60, 0x6c,
164 0x00, 0x00 };
165
166 /**
167 * FW rate table. FW refers to rates by their index in this table, not by the
168 * rate value itself. Values of 0x00 are
169 * reserved positions.
170 */
171 static u8 fw_data_rates[MAX_RATES] =
172 { 0x02, 0x04, 0x0B, 0x16, 0x00, 0x0C, 0x12,
173 0x18, 0x24, 0x30, 0x48, 0x60, 0x6C, 0x00
174 };
175
176 /**
177 * @brief use index to get the data rate
178 *
179 * @param idx The index of data rate
180 * @return data rate or 0
181 */
182 u32 lbs_fw_index_to_data_rate(u8 idx)
183 {
184 if (idx >= sizeof(fw_data_rates))
185 idx = 0;
186 return fw_data_rates[idx];
187 }
188
189 /**
190 * @brief use rate to get the index
191 *
192 * @param rate data rate
193 * @return index or 0
194 */
195 u8 lbs_data_rate_to_fw_index(u32 rate)
196 {
197 u8 i;
198
199 if (!rate)
200 return 0;
201
202 for (i = 0; i < sizeof(fw_data_rates); i++) {
203 if (rate == fw_data_rates[i])
204 return i;
205 }
206 return 0;
207 }
208
209 /**
210 * Attributes exported through sysfs
211 */
212
213 /**
214 * @brief Get function for sysfs attribute anycast_mask
215 */
216 static ssize_t lbs_anycast_get(struct device *dev,
217 struct device_attribute *attr, char * buf)
218 {
219 struct cmd_ds_mesh_access mesh_access;
220
221 memset(&mesh_access, 0, sizeof(mesh_access));
222 lbs_prepare_and_send_command(to_net_dev(dev)->priv,
223 CMD_MESH_ACCESS,
224 CMD_ACT_MESH_GET_ANYCAST,
225 CMD_OPTION_WAITFORRSP, 0, (void *)&mesh_access);
226
227 return snprintf(buf, 12, "0x%X\n", le32_to_cpu(mesh_access.data[0]));
228 }
229
230 /**
231 * @brief Set function for sysfs attribute anycast_mask
232 */
233 static ssize_t lbs_anycast_set(struct device *dev,
234 struct device_attribute *attr, const char * buf, size_t count)
235 {
236 struct cmd_ds_mesh_access mesh_access;
237 uint32_t datum;
238
239 memset(&mesh_access, 0, sizeof(mesh_access));
240 sscanf(buf, "%x", &datum);
241 mesh_access.data[0] = cpu_to_le32(datum);
242
243 lbs_prepare_and_send_command((to_net_dev(dev))->priv,
244 CMD_MESH_ACCESS,
245 CMD_ACT_MESH_SET_ANYCAST,
246 CMD_OPTION_WAITFORRSP, 0, (void *)&mesh_access);
247 return strlen(buf);
248 }
249
250 int lbs_add_rtap(struct lbs_private *priv);
251 void lbs_remove_rtap(struct lbs_private *priv);
252
253 /**
254 * Get function for sysfs attribute rtap
255 */
256 static ssize_t lbs_rtap_get(struct device *dev,
257 struct device_attribute *attr, char * buf)
258 {
259 struct lbs_private *priv = to_net_dev(dev)->priv;
260 struct lbs_adapter *adapter = priv->adapter;
261 return snprintf(buf, 5, "0x%X\n", adapter->monitormode);
262 }
263
264 /**
265 * Set function for sysfs attribute rtap
266 */
267 static ssize_t lbs_rtap_set(struct device *dev,
268 struct device_attribute *attr, const char * buf, size_t count)
269 {
270 int monitor_mode;
271 struct lbs_private *priv = to_net_dev(dev)->priv;
272 struct lbs_adapter *adapter = priv->adapter;
273
274 sscanf(buf, "%x", &monitor_mode);
275 if (monitor_mode != LBS_MONITOR_OFF) {
276 if(adapter->monitormode == monitor_mode)
277 return strlen(buf);
278 if (adapter->monitormode == LBS_MONITOR_OFF) {
279 if (adapter->mode == IW_MODE_INFRA)
280 lbs_send_deauthentication(priv);
281 else if (adapter->mode == IW_MODE_ADHOC)
282 lbs_stop_adhoc_network(priv);
283 lbs_add_rtap(priv);
284 }
285 adapter->monitormode = monitor_mode;
286 }
287
288 else {
289 if (adapter->monitormode == LBS_MONITOR_OFF)
290 return strlen(buf);
291 adapter->monitormode = LBS_MONITOR_OFF;
292 lbs_remove_rtap(priv);
293 netif_wake_queue(priv->dev);
294 netif_wake_queue(priv->mesh_dev);
295 }
296
297 lbs_prepare_and_send_command(priv,
298 CMD_802_11_MONITOR_MODE, CMD_ACT_SET,
299 CMD_OPTION_WAITFORRSP, 0, &adapter->monitormode);
300 return strlen(buf);
301 }
302
303 /**
304 * lbs_rtap attribute to be exported per mshX interface
305 * through sysfs (/sys/class/net/mshX/libertas-rtap)
306 */
307 static DEVICE_ATTR(lbs_rtap, 0644, lbs_rtap_get,
308 lbs_rtap_set );
309
310 /**
311 * anycast_mask attribute to be exported per mshX interface
312 * through sysfs (/sys/class/net/mshX/anycast_mask)
313 */
314 static DEVICE_ATTR(anycast_mask, 0644, lbs_anycast_get, lbs_anycast_set);
315
316 static ssize_t lbs_autostart_enabled_get(struct device *dev,
317 struct device_attribute *attr, char * buf)
318 {
319 struct cmd_ds_mesh_access mesh_access;
320
321 memset(&mesh_access, 0, sizeof(mesh_access));
322 lbs_prepare_and_send_command(to_net_dev(dev)->priv,
323 CMD_MESH_ACCESS,
324 CMD_ACT_MESH_GET_AUTOSTART_ENABLED,
325 CMD_OPTION_WAITFORRSP, 0, (void *)&mesh_access);
326
327 return sprintf(buf, "%d\n", le32_to_cpu(mesh_access.data[0]));
328 }
329
330 static ssize_t lbs_autostart_enabled_set(struct device *dev,
331 struct device_attribute *attr, const char * buf, size_t count)
332 {
333 struct cmd_ds_mesh_access mesh_access;
334 uint32_t datum;
335 struct lbs_private *priv = (to_net_dev(dev))->priv;
336 int ret;
337
338 memset(&mesh_access, 0, sizeof(mesh_access));
339 sscanf(buf, "%d", &datum);
340 mesh_access.data[0] = cpu_to_le32(datum);
341
342 ret = lbs_prepare_and_send_command(priv,
343 CMD_MESH_ACCESS,
344 CMD_ACT_MESH_SET_AUTOSTART_ENABLED,
345 CMD_OPTION_WAITFORRSP, 0, (void *)&mesh_access);
346 if (ret == 0)
347 priv->mesh_autostart_enabled = datum ? 1 : 0;
348
349 return strlen(buf);
350 }
351
352 static DEVICE_ATTR(autostart_enabled, 0644,
353 lbs_autostart_enabled_get, lbs_autostart_enabled_set);
354
355 static struct attribute *lbs_mesh_sysfs_entries[] = {
356 &dev_attr_anycast_mask.attr,
357 &dev_attr_autostart_enabled.attr,
358 NULL,
359 };
360
361 static struct attribute_group lbs_mesh_attr_group = {
362 .attrs = lbs_mesh_sysfs_entries,
363 };
364
365 /**
366 * @brief Check if the device can be open and wait if necessary.
367 *
368 * @param dev A pointer to net_device structure
369 * @return 0
370 *
371 * For USB adapter, on some systems the device open handler will be
372 * called before FW ready. Use the following flag check and wait
373 * function to work around the issue.
374 *
375 */
376 static int pre_open_check(struct net_device *dev)
377 {
378 struct lbs_private *priv = (struct lbs_private *) dev->priv;
379 struct lbs_adapter *adapter = priv->adapter;
380 int i = 0;
381
382 while (!adapter->fw_ready && i < 20) {
383 i++;
384 msleep_interruptible(100);
385 }
386 if (!adapter->fw_ready) {
387 lbs_pr_err("firmware not ready\n");
388 return -1;
389 }
390
391 return 0;
392 }
393
394 /**
395 * @brief This function opens the device
396 *
397 * @param dev A pointer to net_device structure
398 * @return 0
399 */
400 static int lbs_dev_open(struct net_device *dev)
401 {
402 struct lbs_private *priv = (struct lbs_private *) dev->priv;
403 struct lbs_adapter *adapter = priv->adapter;
404
405 lbs_deb_enter(LBS_DEB_NET);
406
407 priv->open = 1;
408
409 if (adapter->connect_status == LBS_CONNECTED)
410 netif_carrier_on(priv->dev);
411 else
412 netif_carrier_off(priv->dev);
413
414 if (priv->mesh_dev) {
415 if (adapter->mesh_connect_status == LBS_CONNECTED)
416 netif_carrier_on(priv->mesh_dev);
417 else
418 netif_carrier_off(priv->mesh_dev);
419 }
420
421 lbs_deb_leave(LBS_DEB_NET);
422 return 0;
423 }
424 /**
425 * @brief This function opens the mshX interface
426 *
427 * @param dev A pointer to net_device structure
428 * @return 0
429 */
430 static int lbs_mesh_open(struct net_device *dev)
431 {
432 struct lbs_private *priv = (struct lbs_private *) dev->priv ;
433
434 if (pre_open_check(dev) == -1)
435 return -1;
436 priv->mesh_open = 1 ;
437 netif_wake_queue(priv->mesh_dev);
438
439 priv->adapter->mesh_connect_status = LBS_CONNECTED;
440
441 netif_carrier_on(priv->mesh_dev);
442 netif_wake_queue(priv->mesh_dev);
443 if (priv->infra_open == 0)
444 return lbs_dev_open(priv->dev) ;
445 return 0;
446 }
447
448 /**
449 * @brief This function opens the ethX interface
450 *
451 * @param dev A pointer to net_device structure
452 * @return 0
453 */
454 static int lbs_open(struct net_device *dev)
455 {
456 struct lbs_private *priv = (struct lbs_private *) dev->priv ;
457
458 if(pre_open_check(dev) == -1)
459 return -1;
460 priv->infra_open = 1 ;
461 netif_wake_queue(priv->dev);
462 if (priv->open == 0)
463 return lbs_dev_open(priv->dev) ;
464 return 0;
465 }
466
467 static int lbs_dev_close(struct net_device *dev)
468 {
469 struct lbs_private *priv = dev->priv;
470
471 lbs_deb_enter(LBS_DEB_NET);
472
473 netif_carrier_off(priv->dev);
474 priv->open = 0;
475
476 lbs_deb_leave(LBS_DEB_NET);
477 return 0;
478 }
479
480 /**
481 * @brief This function closes the mshX interface
482 *
483 * @param dev A pointer to net_device structure
484 * @return 0
485 */
486 static int lbs_mesh_close(struct net_device *dev)
487 {
488 struct lbs_private *priv = (struct lbs_private *) (dev->priv);
489
490 priv->mesh_open = 0;
491 netif_stop_queue(priv->mesh_dev);
492 if (priv->infra_open == 0)
493 return lbs_dev_close(dev);
494 else
495 return 0;
496 }
497
498 /**
499 * @brief This function closes the ethX interface
500 *
501 * @param dev A pointer to net_device structure
502 * @return 0
503 */
504 static int lbs_close(struct net_device *dev)
505 {
506 struct lbs_private *priv = (struct lbs_private *) dev->priv;
507
508 netif_stop_queue(dev);
509 priv->infra_open = 0;
510 if (priv->mesh_open == 0)
511 return lbs_dev_close(dev);
512 else
513 return 0;
514 }
515
516
517 static int lbs_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
518 {
519 int ret = 0;
520 struct lbs_private *priv = dev->priv;
521
522 lbs_deb_enter(LBS_DEB_TX);
523
524 if (priv->dnld_sent || priv->adapter->TxLockFlag) {
525 priv->stats.tx_dropped++;
526 goto done;
527 }
528
529 netif_stop_queue(priv->dev);
530 if (priv->mesh_dev)
531 netif_stop_queue(priv->mesh_dev);
532
533 if (lbs_process_tx(priv, skb) == 0)
534 dev->trans_start = jiffies;
535 done:
536 lbs_deb_leave_args(LBS_DEB_TX, "ret %d", ret);
537 return ret;
538 }
539
540 /**
541 * @brief Mark mesh packets and handover them to lbs_hard_start_xmit
542 *
543 */
544 static int lbs_mesh_pre_start_xmit(struct sk_buff *skb,
545 struct net_device *dev)
546 {
547 struct lbs_private *priv = dev->priv;
548 int ret;
549
550 lbs_deb_enter(LBS_DEB_MESH);
551 if (priv->adapter->monitormode != LBS_MONITOR_OFF) {
552 netif_stop_queue(dev);
553 return -EOPNOTSUPP;
554 }
555
556 SET_MESH_FRAME(skb);
557
558 ret = lbs_hard_start_xmit(skb, priv->mesh_dev);
559 lbs_deb_leave_args(LBS_DEB_MESH, "ret %d", ret);
560 return ret;
561 }
562
563 /**
564 * @brief Mark non-mesh packets and handover them to lbs_hard_start_xmit
565 *
566 */
567 static int lbs_pre_start_xmit(struct sk_buff *skb, struct net_device *dev)
568 {
569 struct lbs_private *priv = dev->priv;
570 int ret;
571
572 lbs_deb_enter(LBS_DEB_TX);
573
574 if (priv->adapter->monitormode != LBS_MONITOR_OFF) {
575 netif_stop_queue(dev);
576 return -EOPNOTSUPP;
577 }
578
579 UNSET_MESH_FRAME(skb);
580
581 ret = lbs_hard_start_xmit(skb, dev);
582 lbs_deb_leave_args(LBS_DEB_TX, "ret %d", ret);
583 return ret;
584 }
585
586 static void lbs_tx_timeout(struct net_device *dev)
587 {
588 struct lbs_private *priv = (struct lbs_private *) dev->priv;
589
590 lbs_deb_enter(LBS_DEB_TX);
591
592 lbs_pr_err("tx watch dog timeout\n");
593
594 priv->dnld_sent = DNLD_RES_RECEIVED;
595 dev->trans_start = jiffies;
596
597 if (priv->adapter->currenttxskb) {
598 if (priv->adapter->monitormode != LBS_MONITOR_OFF) {
599 /* If we are here, we have not received feedback from
600 the previous packet. Assume TX_FAIL and move on. */
601 priv->adapter->eventcause = 0x01000000;
602 lbs_send_tx_feedback(priv);
603 } else
604 wake_up_interruptible(&priv->waitq);
605 } else if (dev == priv->dev) {
606 if (priv->adapter->connect_status == LBS_CONNECTED)
607 netif_wake_queue(priv->dev);
608
609 } else if (dev == priv->mesh_dev) {
610 if (priv->adapter->mesh_connect_status == LBS_CONNECTED)
611 netif_wake_queue(priv->mesh_dev);
612 }
613
614 lbs_deb_leave(LBS_DEB_TX);
615 }
616
617 void lbs_host_to_card_done(struct lbs_private *priv)
618 {
619 struct lbs_adapter *adapter = priv->adapter;
620
621 priv->dnld_sent = DNLD_RES_RECEIVED;
622
623 /* Wake main thread if commands are pending */
624 if (!adapter->cur_cmd)
625 wake_up_interruptible(&priv->waitq);
626
627 if (priv->dev && adapter->connect_status == LBS_CONNECTED)
628 netif_wake_queue(priv->dev);
629
630 if (priv->mesh_dev && adapter->mesh_connect_status == LBS_CONNECTED)
631 netif_wake_queue(priv->mesh_dev);
632 }
633 EXPORT_SYMBOL_GPL(lbs_host_to_card_done);
634
635 /**
636 * @brief This function returns the network statistics
637 *
638 * @param dev A pointer to struct lbs_private structure
639 * @return A pointer to net_device_stats structure
640 */
641 static struct net_device_stats *lbs_get_stats(struct net_device *dev)
642 {
643 struct lbs_private *priv = (struct lbs_private *) dev->priv;
644
645 return &priv->stats;
646 }
647
648 static int lbs_set_mac_address(struct net_device *dev, void *addr)
649 {
650 int ret = 0;
651 struct lbs_private *priv = (struct lbs_private *) dev->priv;
652 struct lbs_adapter *adapter = priv->adapter;
653 struct sockaddr *phwaddr = addr;
654
655 lbs_deb_enter(LBS_DEB_NET);
656
657 /* In case it was called from the mesh device */
658 dev = priv->dev ;
659
660 memset(adapter->current_addr, 0, ETH_ALEN);
661
662 /* dev->dev_addr is 8 bytes */
663 lbs_deb_hex(LBS_DEB_NET, "dev->dev_addr", dev->dev_addr, ETH_ALEN);
664
665 lbs_deb_hex(LBS_DEB_NET, "addr", phwaddr->sa_data, ETH_ALEN);
666 memcpy(adapter->current_addr, phwaddr->sa_data, ETH_ALEN);
667
668 ret = lbs_prepare_and_send_command(priv, CMD_802_11_MAC_ADDRESS,
669 CMD_ACT_SET,
670 CMD_OPTION_WAITFORRSP, 0, NULL);
671
672 if (ret) {
673 lbs_deb_net("set MAC address failed\n");
674 ret = -1;
675 goto done;
676 }
677
678 lbs_deb_hex(LBS_DEB_NET, "adapter->macaddr", adapter->current_addr, ETH_ALEN);
679 memcpy(dev->dev_addr, adapter->current_addr, ETH_ALEN);
680 if (priv->mesh_dev)
681 memcpy(priv->mesh_dev->dev_addr, adapter->current_addr, ETH_ALEN);
682
683 done:
684 lbs_deb_leave_args(LBS_DEB_NET, "ret %d", ret);
685 return ret;
686 }
687
688 static int lbs_copy_multicast_address(struct lbs_adapter *adapter,
689 struct net_device *dev)
690 {
691 int i = 0;
692 struct dev_mc_list *mcptr = dev->mc_list;
693
694 for (i = 0; i < dev->mc_count; i++) {
695 memcpy(&adapter->multicastlist[i], mcptr->dmi_addr, ETH_ALEN);
696 mcptr = mcptr->next;
697 }
698
699 return i;
700
701 }
702
703 static void lbs_set_multicast_list(struct net_device *dev)
704 {
705 struct lbs_private *priv = dev->priv;
706 struct lbs_adapter *adapter = priv->adapter;
707 int oldpacketfilter;
708 DECLARE_MAC_BUF(mac);
709
710 lbs_deb_enter(LBS_DEB_NET);
711
712 oldpacketfilter = adapter->currentpacketfilter;
713
714 if (dev->flags & IFF_PROMISC) {
715 lbs_deb_net("enable promiscuous mode\n");
716 adapter->currentpacketfilter |=
717 CMD_ACT_MAC_PROMISCUOUS_ENABLE;
718 adapter->currentpacketfilter &=
719 ~(CMD_ACT_MAC_ALL_MULTICAST_ENABLE |
720 CMD_ACT_MAC_MULTICAST_ENABLE);
721 } else {
722 /* Multicast */
723 adapter->currentpacketfilter &=
724 ~CMD_ACT_MAC_PROMISCUOUS_ENABLE;
725
726 if (dev->flags & IFF_ALLMULTI || dev->mc_count >
727 MRVDRV_MAX_MULTICAST_LIST_SIZE) {
728 lbs_deb_net( "enabling all multicast\n");
729 adapter->currentpacketfilter |=
730 CMD_ACT_MAC_ALL_MULTICAST_ENABLE;
731 adapter->currentpacketfilter &=
732 ~CMD_ACT_MAC_MULTICAST_ENABLE;
733 } else {
734 adapter->currentpacketfilter &=
735 ~CMD_ACT_MAC_ALL_MULTICAST_ENABLE;
736
737 if (!dev->mc_count) {
738 lbs_deb_net("no multicast addresses, "
739 "disabling multicast\n");
740 adapter->currentpacketfilter &=
741 ~CMD_ACT_MAC_MULTICAST_ENABLE;
742 } else {
743 int i;
744
745 adapter->currentpacketfilter |=
746 CMD_ACT_MAC_MULTICAST_ENABLE;
747
748 adapter->nr_of_multicastmacaddr =
749 lbs_copy_multicast_address(adapter, dev);
750
751 lbs_deb_net("multicast addresses: %d\n",
752 dev->mc_count);
753
754 for (i = 0; i < dev->mc_count; i++) {
755 lbs_deb_net("Multicast address %d:%s\n",
756 i, print_mac(mac,
757 adapter->multicastlist[i]));
758 }
759 /* send multicast addresses to firmware */
760 lbs_prepare_and_send_command(priv,
761 CMD_MAC_MULTICAST_ADR,
762 CMD_ACT_SET, 0, 0,
763 NULL);
764 }
765 }
766 }
767
768 if (adapter->currentpacketfilter != oldpacketfilter) {
769 lbs_set_mac_packet_filter(priv);
770 }
771
772 lbs_deb_leave(LBS_DEB_NET);
773 }
774
775 /**
776 * @brief This function handles the major jobs in the LBS driver.
777 * It handles all events generated by firmware, RX data received
778 * from firmware and TX data sent from kernel.
779 *
780 * @param data A pointer to lbs_thread structure
781 * @return 0
782 */
783 static int lbs_thread(void *data)
784 {
785 struct net_device *dev = data;
786 struct lbs_private *priv = dev->priv;
787 struct lbs_adapter *adapter = priv->adapter;
788 wait_queue_t wait;
789 u8 ireg = 0;
790
791 lbs_deb_enter(LBS_DEB_THREAD);
792
793 init_waitqueue_entry(&wait, current);
794
795 set_freezable();
796
797 for (;;) {
798 lbs_deb_thread( "main-thread 111: intcounter=%d currenttxskb=%p dnld_sent=%d\n",
799 adapter->intcounter, adapter->currenttxskb, priv->dnld_sent);
800
801 add_wait_queue(&priv->waitq, &wait);
802 set_current_state(TASK_INTERRUPTIBLE);
803 spin_lock_irq(&adapter->driver_lock);
804
805 if ((adapter->psstate == PS_STATE_SLEEP) ||
806 (!adapter->intcounter && (priv->dnld_sent || adapter->cur_cmd || list_empty(&adapter->cmdpendingq)))) {
807 lbs_deb_thread("main-thread sleeping... Conn=%d IntC=%d PS_mode=%d PS_State=%d\n",
808 adapter->connect_status, adapter->intcounter,
809 adapter->psmode, adapter->psstate);
810 spin_unlock_irq(&adapter->driver_lock);
811 schedule();
812 } else
813 spin_unlock_irq(&adapter->driver_lock);
814
815 lbs_deb_thread("main-thread 222 (waking up): intcounter=%d currenttxskb=%p dnld_sent=%d\n",
816 adapter->intcounter, adapter->currenttxskb, priv->dnld_sent);
817
818 set_current_state(TASK_RUNNING);
819 remove_wait_queue(&priv->waitq, &wait);
820 try_to_freeze();
821
822 lbs_deb_thread("main-thread 333: intcounter=%d currenttxskb=%p dnld_sent=%d\n",
823 adapter->intcounter, adapter->currenttxskb, priv->dnld_sent);
824
825 if (kthread_should_stop() || adapter->surpriseremoved) {
826 lbs_deb_thread("main-thread: break from main thread: surpriseremoved=0x%x\n",
827 adapter->surpriseremoved);
828 break;
829 }
830
831
832 spin_lock_irq(&adapter->driver_lock);
833
834 if (adapter->intcounter) {
835 u8 int_status;
836
837 adapter->intcounter = 0;
838 int_status = priv->hw_get_int_status(priv, &ireg);
839
840 if (int_status) {
841 lbs_deb_thread("main-thread: reading HOST_INT_STATUS_REG failed\n");
842 spin_unlock_irq(&adapter->driver_lock);
843 continue;
844 }
845 adapter->hisregcpy |= ireg;
846 }
847
848 lbs_deb_thread("main-thread 444: intcounter=%d currenttxskb=%p dnld_sent=%d\n",
849 adapter->intcounter, adapter->currenttxskb, priv->dnld_sent);
850
851 /* command response? */
852 if (adapter->hisregcpy & MRVDRV_CMD_UPLD_RDY) {
853 lbs_deb_thread("main-thread: cmd response ready\n");
854
855 adapter->hisregcpy &= ~MRVDRV_CMD_UPLD_RDY;
856 spin_unlock_irq(&adapter->driver_lock);
857 lbs_process_rx_command(priv);
858 spin_lock_irq(&adapter->driver_lock);
859 }
860
861 /* Any Card Event */
862 if (adapter->hisregcpy & MRVDRV_CARDEVENT) {
863 lbs_deb_thread("main-thread: Card Event Activity\n");
864
865 adapter->hisregcpy &= ~MRVDRV_CARDEVENT;
866
867 if (priv->hw_read_event_cause(priv)) {
868 lbs_pr_alert("main-thread: hw_read_event_cause failed\n");
869 spin_unlock_irq(&adapter->driver_lock);
870 continue;
871 }
872 spin_unlock_irq(&adapter->driver_lock);
873 lbs_process_event(priv);
874 } else
875 spin_unlock_irq(&adapter->driver_lock);
876
877 /* Check if we need to confirm Sleep Request received previously */
878 if (adapter->psstate == PS_STATE_PRE_SLEEP &&
879 !priv->dnld_sent && !adapter->cur_cmd) {
880 if (adapter->connect_status == LBS_CONNECTED) {
881 lbs_deb_thread("main_thread: PRE_SLEEP--intcounter=%d currenttxskb=%p dnld_sent=%d cur_cmd=%p, confirm now\n",
882 adapter->intcounter, adapter->currenttxskb, priv->dnld_sent, adapter->cur_cmd);
883
884 lbs_ps_confirm_sleep(priv, (u16) adapter->psmode);
885 } else {
886 /* workaround for firmware sending
887 * deauth/linkloss event immediately
888 * after sleep request; remove this
889 * after firmware fixes it
890 */
891 adapter->psstate = PS_STATE_AWAKE;
892 lbs_pr_alert("main-thread: ignore PS_SleepConfirm in non-connected state\n");
893 }
894 }
895
896 /* The PS state is changed during processing of Sleep Request
897 * event above
898 */
899 if ((priv->adapter->psstate == PS_STATE_SLEEP) ||
900 (priv->adapter->psstate == PS_STATE_PRE_SLEEP))
901 continue;
902
903 /* Execute the next command */
904 if (!priv->dnld_sent && !priv->adapter->cur_cmd)
905 lbs_execute_next_command(priv);
906
907 /* Wake-up command waiters which can't sleep in
908 * lbs_prepare_and_send_command
909 */
910 if (!list_empty(&adapter->cmdpendingq))
911 wake_up_all(&adapter->cmd_pending);
912
913 lbs_tx_runqueue(priv);
914 }
915
916 del_timer(&adapter->command_timer);
917 wake_up_all(&adapter->cmd_pending);
918
919 lbs_deb_leave(LBS_DEB_THREAD);
920 return 0;
921 }
922
923 /**
924 * @brief This function downloads firmware image, gets
925 * HW spec from firmware and set basic parameters to
926 * firmware.
927 *
928 * @param priv A pointer to struct lbs_private structure
929 * @return 0 or -1
930 */
931 static int lbs_setup_firmware(struct lbs_private *priv)
932 {
933 int ret = -1;
934 struct lbs_adapter *adapter = priv->adapter;
935 struct cmd_ds_mesh_access mesh_access;
936
937 lbs_deb_enter(LBS_DEB_FW);
938
939 /*
940 * Read MAC address from HW
941 */
942 memset(adapter->current_addr, 0xff, ETH_ALEN);
943
944 ret = lbs_prepare_and_send_command(priv, CMD_GET_HW_SPEC,
945 0, CMD_OPTION_WAITFORRSP, 0, NULL);
946
947 if (ret) {
948 ret = -1;
949 goto done;
950 }
951
952 lbs_set_mac_packet_filter(priv);
953
954 /* Get the supported Data rates */
955 ret = lbs_prepare_and_send_command(priv, CMD_802_11_DATA_RATE,
956 CMD_ACT_GET_TX_RATE,
957 CMD_OPTION_WAITFORRSP, 0, NULL);
958
959 if (ret) {
960 ret = -1;
961 goto done;
962 }
963
964 /* Disable mesh autostart */
965 if (priv->mesh_dev) {
966 memset(&mesh_access, 0, sizeof(mesh_access));
967 mesh_access.data[0] = cpu_to_le32(0);
968 ret = lbs_prepare_and_send_command(priv,
969 CMD_MESH_ACCESS,
970 CMD_ACT_MESH_SET_AUTOSTART_ENABLED,
971 CMD_OPTION_WAITFORRSP, 0, (void *)&mesh_access);
972 if (ret) {
973 ret = -1;
974 goto done;
975 }
976 priv->mesh_autostart_enabled = 0;
977 }
978
979 ret = 0;
980 done:
981 lbs_deb_leave_args(LBS_DEB_FW, "ret %d", ret);
982 return ret;
983 }
984
985 /**
986 * This function handles the timeout of command sending.
987 * It will re-send the same command again.
988 */
989 static void command_timer_fn(unsigned long data)
990 {
991 struct lbs_private *priv = (struct lbs_private *)data;
992 struct lbs_adapter *adapter = priv->adapter;
993 struct cmd_ctrl_node *ptempnode;
994 struct cmd_ds_command *cmd;
995 unsigned long flags;
996
997 ptempnode = adapter->cur_cmd;
998 if (ptempnode == NULL) {
999 lbs_deb_fw("ptempnode empty\n");
1000 return;
1001 }
1002
1003 cmd = (struct cmd_ds_command *)ptempnode->bufvirtualaddr;
1004 if (!cmd) {
1005 lbs_deb_fw("cmd is NULL\n");
1006 return;
1007 }
1008
1009 lbs_deb_fw("command_timer_fn fired, cmd %x\n", cmd->command);
1010
1011 if (!adapter->fw_ready)
1012 return;
1013
1014 spin_lock_irqsave(&adapter->driver_lock, flags);
1015 adapter->cur_cmd = NULL;
1016 spin_unlock_irqrestore(&adapter->driver_lock, flags);
1017
1018 lbs_deb_fw("re-sending same command because of timeout\n");
1019 lbs_queue_cmd(adapter, ptempnode, 0);
1020
1021 wake_up_interruptible(&priv->waitq);
1022
1023 return;
1024 }
1025
1026 static int lbs_init_adapter(struct lbs_private *priv)
1027 {
1028 struct lbs_adapter *adapter = priv->adapter;
1029 size_t bufsize;
1030 int i, ret = 0;
1031
1032 /* Allocate buffer to store the BSSID list */
1033 bufsize = MAX_NETWORK_COUNT * sizeof(struct bss_descriptor);
1034 adapter->networks = kzalloc(bufsize, GFP_KERNEL);
1035 if (!adapter->networks) {
1036 lbs_pr_err("Out of memory allocating beacons\n");
1037 ret = -1;
1038 goto out;
1039 }
1040
1041 /* Initialize scan result lists */
1042 INIT_LIST_HEAD(&adapter->network_free_list);
1043 INIT_LIST_HEAD(&adapter->network_list);
1044 for (i = 0; i < MAX_NETWORK_COUNT; i++) {
1045 list_add_tail(&adapter->networks[i].list,
1046 &adapter->network_free_list);
1047 }
1048
1049 adapter->lbs_ps_confirm_sleep.seqnum = cpu_to_le16(++adapter->seqnum);
1050 adapter->lbs_ps_confirm_sleep.command =
1051 cpu_to_le16(CMD_802_11_PS_MODE);
1052 adapter->lbs_ps_confirm_sleep.size =
1053 cpu_to_le16(sizeof(struct PS_CMD_ConfirmSleep));
1054 adapter->lbs_ps_confirm_sleep.action =
1055 cpu_to_le16(CMD_SUBCMD_SLEEP_CONFIRMED);
1056
1057 memset(adapter->current_addr, 0xff, ETH_ALEN);
1058
1059 adapter->connect_status = LBS_DISCONNECTED;
1060 adapter->mesh_connect_status = LBS_DISCONNECTED;
1061 adapter->secinfo.auth_mode = IW_AUTH_ALG_OPEN_SYSTEM;
1062 adapter->mode = IW_MODE_INFRA;
1063 adapter->curbssparams.channel = DEFAULT_AD_HOC_CHANNEL;
1064 adapter->currentpacketfilter = CMD_ACT_MAC_RX_ON | CMD_ACT_MAC_TX_ON;
1065 adapter->radioon = RADIO_ON;
1066 adapter->auto_rate = 1;
1067 adapter->capability = WLAN_CAPABILITY_SHORT_PREAMBLE;
1068 adapter->psmode = LBS802_11POWERMODECAM;
1069 adapter->psstate = PS_STATE_FULL_POWER;
1070
1071 mutex_init(&adapter->lock);
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 setup_timer(&adapter->command_timer, command_timer_fn,
1078 (unsigned long)priv);
1079
1080 INIT_LIST_HEAD(&adapter->cmdfreeq);
1081 INIT_LIST_HEAD(&adapter->cmdpendingq);
1082
1083 spin_lock_init(&adapter->driver_lock);
1084 init_waitqueue_head(&adapter->cmd_pending);
1085
1086 /* Allocate the command buffers */
1087 if (lbs_allocate_cmd_buffer(priv)) {
1088 lbs_pr_err("Out of memory allocating command buffers\n");
1089 ret = -1;
1090 }
1091
1092 out:
1093 return ret;
1094 }
1095
1096 static void lbs_free_adapter(struct lbs_private *priv)
1097 {
1098 struct lbs_adapter *adapter = priv->adapter;
1099
1100 if (!adapter) {
1101 lbs_deb_fw("why double free adapter?\n");
1102 return;
1103 }
1104
1105 lbs_deb_fw("free command buffer\n");
1106 lbs_free_cmd_buffer(priv);
1107
1108 lbs_deb_fw("free command_timer\n");
1109 del_timer(&adapter->command_timer);
1110
1111 lbs_deb_fw("free scan results table\n");
1112 kfree(adapter->networks);
1113 adapter->networks = NULL;
1114
1115 /* Free the adapter object itself */
1116 lbs_deb_fw("free adapter\n");
1117 kfree(adapter);
1118 priv->adapter = NULL;
1119 }
1120
1121 /**
1122 * @brief This function adds the card. it will probe the
1123 * card, allocate the lbs_priv and initialize the device.
1124 *
1125 * @param card A pointer to card
1126 * @return A pointer to struct lbs_private structure
1127 */
1128 struct lbs_private *lbs_add_card(void *card, struct device *dmdev)
1129 {
1130 struct net_device *dev = NULL;
1131 struct lbs_private *priv = NULL;
1132
1133 lbs_deb_enter(LBS_DEB_NET);
1134
1135 /* Allocate an Ethernet device and register it */
1136 dev = alloc_etherdev(sizeof(struct lbs_private));
1137 if (!dev) {
1138 lbs_pr_err("init ethX device failed\n");
1139 goto done;
1140 }
1141 priv = dev->priv;
1142
1143 /* allocate buffer for struct lbs_adapter */
1144 priv->adapter = kzalloc(sizeof(struct lbs_adapter), GFP_KERNEL);
1145 if (!priv->adapter) {
1146 lbs_pr_err("allocate buffer for struct lbs_adapter failed\n");
1147 goto err_kzalloc;
1148 }
1149
1150 if (lbs_init_adapter(priv)) {
1151 lbs_pr_err("failed to initialize adapter structure.\n");
1152 goto err_init_adapter;
1153 }
1154
1155 priv->dev = dev;
1156 priv->card = card;
1157 priv->mesh_open = 0;
1158 priv->infra_open = 0;
1159
1160 /* Setup the OS Interface to our functions */
1161 dev->open = lbs_open;
1162 dev->hard_start_xmit = lbs_pre_start_xmit;
1163 dev->stop = lbs_close;
1164 dev->set_mac_address = lbs_set_mac_address;
1165 dev->tx_timeout = lbs_tx_timeout;
1166 dev->get_stats = lbs_get_stats;
1167 dev->watchdog_timeo = 5 * HZ;
1168 dev->ethtool_ops = &lbs_ethtool_ops;
1169 #ifdef WIRELESS_EXT
1170 dev->wireless_handlers = (struct iw_handler_def *)&lbs_handler_def;
1171 #endif
1172 dev->flags |= IFF_BROADCAST | IFF_MULTICAST;
1173 dev->set_multicast_list = lbs_set_multicast_list;
1174
1175 SET_NETDEV_DEV(dev, dmdev);
1176
1177 priv->rtap_net_dev = NULL;
1178
1179 lbs_deb_thread("Starting main thread...\n");
1180 init_waitqueue_head(&priv->waitq);
1181 priv->main_thread = kthread_run(lbs_thread, dev, "lbs_main");
1182 if (IS_ERR(priv->main_thread)) {
1183 lbs_deb_thread("Error creating main thread.\n");
1184 goto err_init_adapter;
1185 }
1186
1187 priv->work_thread = create_singlethread_workqueue("lbs_worker");
1188 INIT_DELAYED_WORK(&priv->assoc_work, lbs_association_worker);
1189 INIT_DELAYED_WORK(&priv->scan_work, lbs_scan_worker);
1190 INIT_WORK(&priv->sync_channel, lbs_sync_channel);
1191
1192 goto done;
1193
1194 err_init_adapter:
1195 lbs_free_adapter(priv);
1196
1197 err_kzalloc:
1198 free_netdev(dev);
1199 priv = NULL;
1200
1201 done:
1202 lbs_deb_leave_args(LBS_DEB_NET, "priv %p", priv);
1203 return priv;
1204 }
1205 EXPORT_SYMBOL_GPL(lbs_add_card);
1206
1207
1208 int lbs_remove_card(struct lbs_private *priv)
1209 {
1210 struct lbs_adapter *adapter = priv->adapter;
1211 struct net_device *dev = priv->dev;
1212 union iwreq_data wrqu;
1213
1214 lbs_deb_enter(LBS_DEB_MAIN);
1215
1216 lbs_remove_rtap(priv);
1217
1218 dev = priv->dev;
1219 device_remove_file(&dev->dev, &dev_attr_lbs_rtap);
1220
1221 cancel_delayed_work(&priv->scan_work);
1222 cancel_delayed_work(&priv->assoc_work);
1223 destroy_workqueue(priv->work_thread);
1224
1225 if (adapter->psmode == LBS802_11POWERMODEMAX_PSP) {
1226 adapter->psmode = LBS802_11POWERMODECAM;
1227 lbs_ps_wakeup(priv, CMD_OPTION_WAITFORRSP);
1228 }
1229
1230 memset(wrqu.ap_addr.sa_data, 0xaa, ETH_ALEN);
1231 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
1232 wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL);
1233
1234 /* Stop the thread servicing the interrupts */
1235 adapter->surpriseremoved = 1;
1236 kthread_stop(priv->main_thread);
1237
1238 lbs_free_adapter(priv);
1239
1240 priv->dev = NULL;
1241 free_netdev(dev);
1242
1243 lbs_deb_leave(LBS_DEB_MAIN);
1244 return 0;
1245 }
1246 EXPORT_SYMBOL_GPL(lbs_remove_card);
1247
1248
1249 int lbs_start_card(struct lbs_private *priv)
1250 {
1251 struct net_device *dev = priv->dev;
1252 int ret = -1;
1253
1254 lbs_deb_enter(LBS_DEB_MAIN);
1255
1256 /* poke the firmware */
1257 ret = lbs_setup_firmware(priv);
1258 if (ret)
1259 goto done;
1260
1261 /* init 802.11d */
1262 lbs_init_11d(priv);
1263
1264 if (register_netdev(dev)) {
1265 lbs_pr_err("cannot register ethX device\n");
1266 goto done;
1267 }
1268 if (device_create_file(&dev->dev, &dev_attr_lbs_rtap))
1269 lbs_pr_err("cannot register lbs_rtap attribute\n");
1270
1271 lbs_debugfs_init_one(priv, dev);
1272
1273 lbs_pr_info("%s: Marvell WLAN 802.11 adapter\n", dev->name);
1274
1275 ret = 0;
1276
1277 done:
1278 lbs_deb_leave_args(LBS_DEB_MAIN, "ret %d", ret);
1279 return ret;
1280 }
1281 EXPORT_SYMBOL_GPL(lbs_start_card);
1282
1283
1284 int lbs_stop_card(struct lbs_private *priv)
1285 {
1286 struct net_device *dev = priv->dev;
1287 int ret = -1;
1288 struct cmd_ctrl_node *cmdnode;
1289 unsigned long flags;
1290
1291 lbs_deb_enter(LBS_DEB_MAIN);
1292
1293 netif_stop_queue(priv->dev);
1294 netif_carrier_off(priv->dev);
1295
1296 lbs_debugfs_remove_one(priv);
1297
1298 /* Flush pending command nodes */
1299 spin_lock_irqsave(&priv->adapter->driver_lock, flags);
1300 list_for_each_entry(cmdnode, &priv->adapter->cmdpendingq, list) {
1301 cmdnode->cmdwaitqwoken = 1;
1302 wake_up_interruptible(&cmdnode->cmdwait_q);
1303 }
1304 spin_unlock_irqrestore(&priv->adapter->driver_lock, flags);
1305
1306 unregister_netdev(dev);
1307
1308 lbs_deb_leave_args(LBS_DEB_MAIN, "ret %d", ret);
1309 return ret;
1310 }
1311 EXPORT_SYMBOL_GPL(lbs_stop_card);
1312
1313
1314 /**
1315 * @brief This function adds mshX interface
1316 *
1317 * @param priv A pointer to the struct lbs_private structure
1318 * @return 0 if successful, -X otherwise
1319 */
1320 int lbs_add_mesh(struct lbs_private *priv, struct device *dev)
1321 {
1322 struct net_device *mesh_dev = NULL;
1323 int ret = 0;
1324
1325 lbs_deb_enter(LBS_DEB_MESH);
1326
1327 /* Allocate a virtual mesh device */
1328 if (!(mesh_dev = alloc_netdev(0, "msh%d", ether_setup))) {
1329 lbs_deb_mesh("init mshX device failed\n");
1330 ret = -ENOMEM;
1331 goto done;
1332 }
1333 mesh_dev->priv = priv;
1334 priv->mesh_dev = mesh_dev;
1335
1336 mesh_dev->open = lbs_mesh_open;
1337 mesh_dev->hard_start_xmit = lbs_mesh_pre_start_xmit;
1338 mesh_dev->stop = lbs_mesh_close;
1339 mesh_dev->get_stats = lbs_get_stats;
1340 mesh_dev->set_mac_address = lbs_set_mac_address;
1341 mesh_dev->ethtool_ops = &lbs_ethtool_ops;
1342 memcpy(mesh_dev->dev_addr, priv->dev->dev_addr,
1343 sizeof(priv->dev->dev_addr));
1344
1345 SET_NETDEV_DEV(priv->mesh_dev, dev);
1346
1347 #ifdef WIRELESS_EXT
1348 mesh_dev->wireless_handlers = (struct iw_handler_def *)&mesh_handler_def;
1349 #endif
1350 /* Register virtual mesh interface */
1351 ret = register_netdev(mesh_dev);
1352 if (ret) {
1353 lbs_pr_err("cannot register mshX virtual interface\n");
1354 goto err_free;
1355 }
1356
1357 ret = sysfs_create_group(&(mesh_dev->dev.kobj), &lbs_mesh_attr_group);
1358 if (ret)
1359 goto err_unregister;
1360
1361 /* Everything successful */
1362 ret = 0;
1363 goto done;
1364
1365 err_unregister:
1366 unregister_netdev(mesh_dev);
1367
1368 err_free:
1369 free_netdev(mesh_dev);
1370
1371 done:
1372 lbs_deb_leave_args(LBS_DEB_MESH, "ret %d", ret);
1373 return ret;
1374 }
1375 EXPORT_SYMBOL_GPL(lbs_add_mesh);
1376
1377
1378 void lbs_remove_mesh(struct lbs_private *priv)
1379 {
1380 struct net_device *mesh_dev;
1381
1382 lbs_deb_enter(LBS_DEB_MAIN);
1383
1384 if (!priv)
1385 goto out;
1386
1387 mesh_dev = priv->mesh_dev;
1388
1389 netif_stop_queue(mesh_dev);
1390 netif_carrier_off(priv->mesh_dev);
1391
1392 sysfs_remove_group(&(mesh_dev->dev.kobj), &lbs_mesh_attr_group);
1393 unregister_netdev(mesh_dev);
1394
1395 priv->mesh_dev = NULL ;
1396 free_netdev(mesh_dev);
1397
1398 out:
1399 lbs_deb_leave(LBS_DEB_MAIN);
1400 }
1401 EXPORT_SYMBOL_GPL(lbs_remove_mesh);
1402
1403 /**
1404 * @brief This function finds the CFP in
1405 * region_cfp_table based on region and band parameter.
1406 *
1407 * @param region The region code
1408 * @param band The band
1409 * @param cfp_no A pointer to CFP number
1410 * @return A pointer to CFP
1411 */
1412 struct chan_freq_power *lbs_get_region_cfp_table(u8 region, u8 band, int *cfp_no)
1413 {
1414 int i, end;
1415
1416 lbs_deb_enter(LBS_DEB_MAIN);
1417
1418 end = ARRAY_SIZE(region_cfp_table);
1419
1420 for (i = 0; i < end ; i++) {
1421 lbs_deb_main("region_cfp_table[i].region=%d\n",
1422 region_cfp_table[i].region);
1423 if (region_cfp_table[i].region == region) {
1424 *cfp_no = region_cfp_table[i].cfp_no_BG;
1425 lbs_deb_leave(LBS_DEB_MAIN);
1426 return region_cfp_table[i].cfp_BG;
1427 }
1428 }
1429
1430 lbs_deb_leave_args(LBS_DEB_MAIN, "ret NULL");
1431 return NULL;
1432 }
1433
1434 int lbs_set_regiontable(struct lbs_private *priv, u8 region, u8 band)
1435 {
1436 struct lbs_adapter *adapter = priv->adapter;
1437 int ret = 0;
1438 int i = 0;
1439
1440 struct chan_freq_power *cfp;
1441 int cfp_no;
1442
1443 lbs_deb_enter(LBS_DEB_MAIN);
1444
1445 memset(adapter->region_channel, 0, sizeof(adapter->region_channel));
1446
1447 {
1448 cfp = lbs_get_region_cfp_table(region, band, &cfp_no);
1449 if (cfp != NULL) {
1450 adapter->region_channel[i].nrcfp = cfp_no;
1451 adapter->region_channel[i].CFP = cfp;
1452 } else {
1453 lbs_deb_main("wrong region code %#x in band B/G\n",
1454 region);
1455 ret = -1;
1456 goto out;
1457 }
1458 adapter->region_channel[i].valid = 1;
1459 adapter->region_channel[i].region = region;
1460 adapter->region_channel[i].band = band;
1461 i++;
1462 }
1463 out:
1464 lbs_deb_leave_args(LBS_DEB_MAIN, "ret %d", ret);
1465 return ret;
1466 }
1467
1468 /**
1469 * @brief This function handles the interrupt. it will change PS
1470 * state if applicable. it will wake up main_thread to handle
1471 * the interrupt event as well.
1472 *
1473 * @param dev A pointer to net_device structure
1474 * @return n/a
1475 */
1476 void lbs_interrupt(struct net_device *dev)
1477 {
1478 struct lbs_private *priv = dev->priv;
1479
1480 lbs_deb_enter(LBS_DEB_THREAD);
1481
1482 lbs_deb_thread("lbs_interrupt: intcounter=%d\n",
1483 priv->adapter->intcounter);
1484
1485 priv->adapter->intcounter++;
1486
1487 if (priv->adapter->psstate == PS_STATE_SLEEP) {
1488 priv->adapter->psstate = PS_STATE_AWAKE;
1489 netif_wake_queue(dev);
1490 if (priv->mesh_dev)
1491 netif_wake_queue(priv->mesh_dev);
1492 }
1493
1494 wake_up_interruptible(&priv->waitq);
1495
1496 lbs_deb_leave(LBS_DEB_THREAD);
1497 }
1498 EXPORT_SYMBOL_GPL(lbs_interrupt);
1499
1500 int lbs_reset_device(struct lbs_private *priv)
1501 {
1502 int ret;
1503
1504 lbs_deb_enter(LBS_DEB_MAIN);
1505 ret = lbs_prepare_and_send_command(priv, CMD_802_11_RESET,
1506 CMD_ACT_HALT, 0, 0, NULL);
1507 msleep_interruptible(10);
1508
1509 lbs_deb_leave_args(LBS_DEB_MAIN, "ret %d", ret);
1510 return ret;
1511 }
1512 EXPORT_SYMBOL_GPL(lbs_reset_device);
1513
1514 static int __init lbs_init_module(void)
1515 {
1516 lbs_deb_enter(LBS_DEB_MAIN);
1517 lbs_debugfs_init();
1518 lbs_deb_leave(LBS_DEB_MAIN);
1519 return 0;
1520 }
1521
1522 static void __exit lbs_exit_module(void)
1523 {
1524 lbs_deb_enter(LBS_DEB_MAIN);
1525
1526 lbs_debugfs_remove();
1527
1528 lbs_deb_leave(LBS_DEB_MAIN);
1529 }
1530
1531 /*
1532 * rtap interface support fuctions
1533 */
1534
1535 static int lbs_rtap_open(struct net_device *dev)
1536 {
1537 netif_carrier_off(dev);
1538 netif_stop_queue(dev);
1539 return 0;
1540 }
1541
1542 static int lbs_rtap_stop(struct net_device *dev)
1543 {
1544 return 0;
1545 }
1546
1547 static int lbs_rtap_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
1548 {
1549 netif_stop_queue(dev);
1550 return -EOPNOTSUPP;
1551 }
1552
1553 static struct net_device_stats *lbs_rtap_get_stats(struct net_device *dev)
1554 {
1555 struct lbs_private *priv = dev->priv;
1556 return &priv->ieee->stats;
1557 }
1558
1559
1560 void lbs_remove_rtap(struct lbs_private *priv)
1561 {
1562 if (priv->rtap_net_dev == NULL)
1563 return;
1564 unregister_netdev(priv->rtap_net_dev);
1565 free_ieee80211(priv->rtap_net_dev);
1566 priv->rtap_net_dev = NULL;
1567 }
1568
1569 int lbs_add_rtap(struct lbs_private *priv)
1570 {
1571 int rc = 0;
1572
1573 if (priv->rtap_net_dev)
1574 return -EPERM;
1575
1576 priv->rtap_net_dev = alloc_ieee80211(0);
1577 if (priv->rtap_net_dev == NULL)
1578 return -ENOMEM;
1579
1580
1581 priv->ieee = netdev_priv(priv->rtap_net_dev);
1582
1583 strcpy(priv->rtap_net_dev->name, "rtap%d");
1584
1585 priv->rtap_net_dev->type = ARPHRD_IEEE80211_RADIOTAP;
1586 priv->rtap_net_dev->open = lbs_rtap_open;
1587 priv->rtap_net_dev->stop = lbs_rtap_stop;
1588 priv->rtap_net_dev->get_stats = lbs_rtap_get_stats;
1589 priv->rtap_net_dev->hard_start_xmit = lbs_rtap_hard_start_xmit;
1590 priv->rtap_net_dev->set_multicast_list = lbs_set_multicast_list;
1591 priv->rtap_net_dev->priv = priv;
1592
1593 priv->ieee->iw_mode = IW_MODE_MONITOR;
1594
1595 rc = register_netdev(priv->rtap_net_dev);
1596 if (rc) {
1597 free_ieee80211(priv->rtap_net_dev);
1598 priv->rtap_net_dev = NULL;
1599 return rc;
1600 }
1601
1602 return 0;
1603 }
1604
1605
1606 module_init(lbs_init_module);
1607 module_exit(lbs_exit_module);
1608
1609 MODULE_DESCRIPTION("Libertas WLAN Driver Library");
1610 MODULE_AUTHOR("Marvell International Ltd.");
1611 MODULE_LICENSE("GPL");
Linux kernel - Deliverables
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