[PATCH] libertas: fix a debug statement
[linux-2.6] / 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 libertas_driver_version[] = "COMM-USB8388-" DRIVER_RELEASE_VERSION
28 #ifdef  DEBUG
29     "-dbg"
30 #endif
31     "";
32
33
34 /* Module parameters */
35 unsigned int libertas_debug = 0;
36 module_param(libertas_debug, int, 0644);
37 EXPORT_SYMBOL_GPL(libertas_debug);
38
39
40 #define WLAN_TX_PWR_DEFAULT             20      /*100mW */
41 #define WLAN_TX_PWR_US_DEFAULT          20      /*100mW */
42 #define WLAN_TX_PWR_JP_DEFAULT          16      /*50mW */
43 #define WLAN_TX_PWR_FR_DEFAULT          20      /*100mW */
44 #define WLAN_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, WLAN_TX_PWR_US_DEFAULT},
50         {2, 2417, WLAN_TX_PWR_US_DEFAULT},
51         {3, 2422, WLAN_TX_PWR_US_DEFAULT},
52         {4, 2427, WLAN_TX_PWR_US_DEFAULT},
53         {5, 2432, WLAN_TX_PWR_US_DEFAULT},
54         {6, 2437, WLAN_TX_PWR_US_DEFAULT},
55         {7, 2442, WLAN_TX_PWR_US_DEFAULT},
56         {8, 2447, WLAN_TX_PWR_US_DEFAULT},
57         {9, 2452, WLAN_TX_PWR_US_DEFAULT},
58         {10, 2457, WLAN_TX_PWR_US_DEFAULT},
59         {11, 2462, WLAN_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, WLAN_TX_PWR_EMEA_DEFAULT},
65         {2, 2417, WLAN_TX_PWR_EMEA_DEFAULT},
66         {3, 2422, WLAN_TX_PWR_EMEA_DEFAULT},
67         {4, 2427, WLAN_TX_PWR_EMEA_DEFAULT},
68         {5, 2432, WLAN_TX_PWR_EMEA_DEFAULT},
69         {6, 2437, WLAN_TX_PWR_EMEA_DEFAULT},
70         {7, 2442, WLAN_TX_PWR_EMEA_DEFAULT},
71         {8, 2447, WLAN_TX_PWR_EMEA_DEFAULT},
72         {9, 2452, WLAN_TX_PWR_EMEA_DEFAULT},
73         {10, 2457, WLAN_TX_PWR_EMEA_DEFAULT},
74         {11, 2462, WLAN_TX_PWR_EMEA_DEFAULT},
75         {12, 2467, WLAN_TX_PWR_EMEA_DEFAULT},
76         {13, 2472, WLAN_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, WLAN_TX_PWR_DEFAULT},
82         {11, 2462, WLAN_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, WLAN_TX_PWR_FR_DEFAULT},
88         {11, 2462, WLAN_TX_PWR_FR_DEFAULT},
89         {12, 2467, WLAN_TX_PWR_FR_DEFAULT},
90         {13, 2472, WLAN_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, WLAN_TX_PWR_JP_DEFAULT},
96         {2, 2417, WLAN_TX_PWR_JP_DEFAULT},
97         {3, 2422, WLAN_TX_PWR_JP_DEFAULT},
98         {4, 2427, WLAN_TX_PWR_JP_DEFAULT},
99         {5, 2432, WLAN_TX_PWR_JP_DEFAULT},
100         {6, 2437, WLAN_TX_PWR_JP_DEFAULT},
101         {7, 2442, WLAN_TX_PWR_JP_DEFAULT},
102         {8, 2447, WLAN_TX_PWR_JP_DEFAULT},
103         {9, 2452, WLAN_TX_PWR_JP_DEFAULT},
104         {10, 2457, WLAN_TX_PWR_JP_DEFAULT},
105         {11, 2462, WLAN_TX_PWR_JP_DEFAULT},
106         {12, 2467, WLAN_TX_PWR_JP_DEFAULT},
107         {13, 2472, WLAN_TX_PWR_JP_DEFAULT},
108         {14, 2484, WLAN_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 libertas_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 libertas_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 libertas_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 libertas_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 libertas_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         libertas_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 libertas_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         libertas_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 libertas_add_rtap(wlan_private *priv);
251 void libertas_remove_rtap(wlan_private *priv);
252
253 /**
254  * Get function for sysfs attribute rtap
255  */
256 static ssize_t libertas_rtap_get(struct device * dev,
257                 struct device_attribute *attr, char * buf)
258 {
259         wlan_private *priv = (wlan_private *) (to_net_dev(dev))->priv;
260         wlan_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 libertas_rtap_set(struct device * dev,
268                 struct device_attribute *attr, const char * buf, size_t count)
269 {
270         int monitor_mode;
271         wlan_private *priv = (wlan_private *) (to_net_dev(dev))->priv;
272         wlan_adapter *adapter = priv->adapter;
273
274         sscanf(buf, "%x", &monitor_mode);
275         if (monitor_mode != WLAN_MONITOR_OFF) {
276                 if(adapter->monitormode == monitor_mode)
277                         return strlen(buf);
278                 if (adapter->monitormode == WLAN_MONITOR_OFF) {
279                         if (adapter->mode == IW_MODE_INFRA)
280                                 libertas_send_deauthentication(priv);
281                         else if (adapter->mode == IW_MODE_ADHOC)
282                                 libertas_stop_adhoc_network(priv);
283                         libertas_add_rtap(priv);
284                 }
285                 adapter->monitormode = monitor_mode;
286         }
287
288         else {
289                 if(adapter->monitormode == WLAN_MONITOR_OFF)
290                         return strlen(buf);
291                 adapter->monitormode = WLAN_MONITOR_OFF;
292                 libertas_remove_rtap(priv);
293                 netif_wake_queue(priv->dev);
294                 netif_wake_queue(priv->mesh_dev);
295         }
296
297         libertas_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  * libertas_rtap attribute to be exported per mshX interface
305  * through sysfs (/sys/class/net/mshX/libertas-rtap)
306  */
307 static DEVICE_ATTR(libertas_rtap, 0644, libertas_rtap_get,
308                 libertas_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, libertas_anycast_get, libertas_anycast_set);
315
316 static ssize_t libertas_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         libertas_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 libertas_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         wlan_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 = libertas_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                 libertas_autostart_enabled_get, libertas_autostart_enabled_set);
354
355 static struct attribute *libertas_mesh_sysfs_entries[] = {
356         &dev_attr_anycast_mask.attr,
357         &dev_attr_autostart_enabled.attr,
358         NULL,
359 };
360
361 static struct attribute_group libertas_mesh_attr_group = {
362         .attrs = libertas_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         wlan_private *priv = (wlan_private *) dev->priv;
379         wlan_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 libertas_dev_open(struct net_device *dev)
401 {
402         wlan_private *priv = (wlan_private *) dev->priv;
403         wlan_adapter *adapter = priv->adapter;
404
405         lbs_deb_enter(LBS_DEB_NET);
406
407         priv->open = 1;
408
409         if (adapter->connect_status == LIBERTAS_CONNECTED) {
410                 netif_carrier_on(priv->dev);
411                 if (priv->mesh_dev)
412                         netif_carrier_on(priv->mesh_dev);
413         } else {
414                 netif_carrier_off(priv->dev);
415                 if (priv->mesh_dev)
416                         netif_carrier_off(priv->mesh_dev);
417         }
418
419         lbs_deb_leave(LBS_DEB_NET);
420         return 0;
421 }
422 /**
423  *  @brief This function opens the mshX interface
424  *
425  *  @param dev     A pointer to net_device structure
426  *  @return        0
427  */
428 static int libertas_mesh_open(struct net_device *dev)
429 {
430         wlan_private *priv = (wlan_private *) dev->priv ;
431
432         if (pre_open_check(dev) == -1)
433                 return -1;
434         priv->mesh_open = 1 ;
435         netif_wake_queue(priv->mesh_dev);
436         if (priv->infra_open == 0)
437                 return libertas_dev_open(priv->dev) ;
438         return 0;
439 }
440
441 /**
442  *  @brief This function opens the ethX interface
443  *
444  *  @param dev     A pointer to net_device structure
445  *  @return        0
446  */
447 static int libertas_open(struct net_device *dev)
448 {
449         wlan_private *priv = (wlan_private *) dev->priv ;
450
451         if(pre_open_check(dev) == -1)
452                 return -1;
453         priv->infra_open = 1 ;
454         netif_wake_queue(priv->dev);
455         if (priv->open == 0)
456                 return libertas_dev_open(priv->dev) ;
457         return 0;
458 }
459
460 static int libertas_dev_close(struct net_device *dev)
461 {
462         wlan_private *priv = dev->priv;
463
464         lbs_deb_enter(LBS_DEB_NET);
465
466         netif_carrier_off(priv->dev);
467         priv->open = 0;
468
469         lbs_deb_leave(LBS_DEB_NET);
470         return 0;
471 }
472
473 /**
474  *  @brief This function closes the mshX interface
475  *
476  *  @param dev     A pointer to net_device structure
477  *  @return        0
478  */
479 static int libertas_mesh_close(struct net_device *dev)
480 {
481         wlan_private *priv = (wlan_private *) (dev->priv);
482
483         priv->mesh_open = 0;
484         netif_stop_queue(priv->mesh_dev);
485         if (priv->infra_open == 0)
486                 return libertas_dev_close(dev);
487         else
488                 return 0;
489 }
490
491 /**
492  *  @brief This function closes the ethX interface
493  *
494  *  @param dev     A pointer to net_device structure
495  *  @return        0
496  */
497 static int libertas_close(struct net_device *dev)
498 {
499         wlan_private *priv = (wlan_private *) dev->priv;
500
501         netif_stop_queue(dev);
502         priv->infra_open = 0;
503         if (priv->mesh_open == 0)
504                 return libertas_dev_close(dev);
505         else
506                 return 0;
507 }
508
509
510 static int libertas_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
511 {
512         int ret = 0;
513         wlan_private *priv = dev->priv;
514
515         lbs_deb_enter(LBS_DEB_NET);
516
517         if (priv->dnld_sent || priv->adapter->TxLockFlag) {
518                 priv->stats.tx_dropped++;
519                 goto done;
520         }
521
522         netif_stop_queue(priv->dev);
523         if (priv->mesh_dev)
524                 netif_stop_queue(priv->mesh_dev);
525
526         if (libertas_process_tx(priv, skb) == 0)
527                 dev->trans_start = jiffies;
528 done:
529         lbs_deb_leave_args(LBS_DEB_NET, "ret %d", ret);
530         return ret;
531 }
532
533 /**
534  * @brief Mark mesh packets and handover them to libertas_hard_start_xmit
535  *
536  */
537 static int libertas_mesh_pre_start_xmit(struct sk_buff *skb,
538                 struct net_device *dev)
539 {
540         wlan_private *priv = dev->priv;
541         int ret;
542
543         lbs_deb_enter(LBS_DEB_MESH);
544         if(priv->adapter->monitormode != WLAN_MONITOR_OFF) {
545                 netif_stop_queue(dev);
546                 return -EOPNOTSUPP;
547         }
548
549         SET_MESH_FRAME(skb);
550
551         ret = libertas_hard_start_xmit(skb, priv->dev);
552         lbs_deb_leave_args(LBS_DEB_MESH, "ret %d", ret);
553         return ret;
554 }
555
556 /**
557  * @brief Mark non-mesh packets and handover them to libertas_hard_start_xmit
558  *
559  */
560 static int libertas_pre_start_xmit(struct sk_buff *skb, struct net_device *dev)
561 {
562         wlan_private *priv = dev->priv;
563         int ret;
564
565         lbs_deb_enter(LBS_DEB_NET);
566
567         if(priv->adapter->monitormode != WLAN_MONITOR_OFF) {
568                 netif_stop_queue(dev);
569                 return -EOPNOTSUPP;
570         }
571
572         UNSET_MESH_FRAME(skb);
573
574         ret = libertas_hard_start_xmit(skb, dev);
575         lbs_deb_leave_args(LBS_DEB_NET, "ret %d", ret);
576         return ret;
577 }
578
579 static void libertas_tx_timeout(struct net_device *dev)
580 {
581         wlan_private *priv = (wlan_private *) dev->priv;
582
583         lbs_deb_enter(LBS_DEB_TX);
584
585         lbs_pr_err("tx watch dog timeout\n");
586
587         priv->dnld_sent = DNLD_RES_RECEIVED;
588         dev->trans_start = jiffies;
589
590         if (priv->adapter->currenttxskb) {
591                 if (priv->adapter->monitormode != WLAN_MONITOR_OFF) {
592                         /* If we are here, we have not received feedback from
593                            the previous packet.  Assume TX_FAIL and move on. */
594                         priv->adapter->eventcause = 0x01000000;
595                         libertas_send_tx_feedback(priv);
596                 } else
597                         wake_up_interruptible(&priv->waitq);
598         } else if (priv->adapter->connect_status == LIBERTAS_CONNECTED) {
599                 netif_wake_queue(priv->dev);
600                 if (priv->mesh_dev)
601                         netif_wake_queue(priv->mesh_dev);
602         }
603
604         lbs_deb_leave(LBS_DEB_TX);
605 }
606
607 /**
608  *  @brief This function returns the network statistics
609  *
610  *  @param dev     A pointer to wlan_private structure
611  *  @return        A pointer to net_device_stats structure
612  */
613 static struct net_device_stats *libertas_get_stats(struct net_device *dev)
614 {
615         wlan_private *priv = (wlan_private *) dev->priv;
616
617         return &priv->stats;
618 }
619
620 static int libertas_set_mac_address(struct net_device *dev, void *addr)
621 {
622         int ret = 0;
623         wlan_private *priv = (wlan_private *) dev->priv;
624         wlan_adapter *adapter = priv->adapter;
625         struct sockaddr *phwaddr = addr;
626
627         lbs_deb_enter(LBS_DEB_NET);
628
629         /* In case it was called from the mesh device */
630         dev = priv->dev ;
631
632         memset(adapter->current_addr, 0, ETH_ALEN);
633
634         /* dev->dev_addr is 8 bytes */
635         lbs_deb_hex(LBS_DEB_NET, "dev->dev_addr", dev->dev_addr, ETH_ALEN);
636
637         lbs_deb_hex(LBS_DEB_NET, "addr", phwaddr->sa_data, ETH_ALEN);
638         memcpy(adapter->current_addr, phwaddr->sa_data, ETH_ALEN);
639
640         ret = libertas_prepare_and_send_command(priv, CMD_802_11_MAC_ADDRESS,
641                                     CMD_ACT_SET,
642                                     CMD_OPTION_WAITFORRSP, 0, NULL);
643
644         if (ret) {
645                 lbs_deb_net("set MAC address failed\n");
646                 ret = -1;
647                 goto done;
648         }
649
650         lbs_deb_hex(LBS_DEB_NET, "adapter->macaddr", adapter->current_addr, ETH_ALEN);
651         memcpy(dev->dev_addr, adapter->current_addr, ETH_ALEN);
652         if (priv->mesh_dev)
653                 memcpy(priv->mesh_dev->dev_addr, adapter->current_addr, ETH_ALEN);
654
655 done:
656         lbs_deb_leave_args(LBS_DEB_NET, "ret %d", ret);
657         return ret;
658 }
659
660 static int libertas_copy_multicast_address(wlan_adapter * adapter,
661                                      struct net_device *dev)
662 {
663         int i = 0;
664         struct dev_mc_list *mcptr = dev->mc_list;
665
666         for (i = 0; i < dev->mc_count; i++) {
667                 memcpy(&adapter->multicastlist[i], mcptr->dmi_addr, ETH_ALEN);
668                 mcptr = mcptr->next;
669         }
670
671         return i;
672
673 }
674
675 static void libertas_set_multicast_list(struct net_device *dev)
676 {
677         wlan_private *priv = dev->priv;
678         wlan_adapter *adapter = priv->adapter;
679         int oldpacketfilter;
680         DECLARE_MAC_BUF(mac);
681
682         lbs_deb_enter(LBS_DEB_NET);
683
684         oldpacketfilter = adapter->currentpacketfilter;
685
686         if (dev->flags & IFF_PROMISC) {
687                 lbs_deb_net("enable promiscuous mode\n");
688                 adapter->currentpacketfilter |=
689                     CMD_ACT_MAC_PROMISCUOUS_ENABLE;
690                 adapter->currentpacketfilter &=
691                     ~(CMD_ACT_MAC_ALL_MULTICAST_ENABLE |
692                       CMD_ACT_MAC_MULTICAST_ENABLE);
693         } else {
694                 /* Multicast */
695                 adapter->currentpacketfilter &=
696                     ~CMD_ACT_MAC_PROMISCUOUS_ENABLE;
697
698                 if (dev->flags & IFF_ALLMULTI || dev->mc_count >
699                     MRVDRV_MAX_MULTICAST_LIST_SIZE) {
700                         lbs_deb_net( "enabling all multicast\n");
701                         adapter->currentpacketfilter |=
702                             CMD_ACT_MAC_ALL_MULTICAST_ENABLE;
703                         adapter->currentpacketfilter &=
704                             ~CMD_ACT_MAC_MULTICAST_ENABLE;
705                 } else {
706                         adapter->currentpacketfilter &=
707                             ~CMD_ACT_MAC_ALL_MULTICAST_ENABLE;
708
709                         if (!dev->mc_count) {
710                                 lbs_deb_net("no multicast addresses, "
711                                        "disabling multicast\n");
712                                 adapter->currentpacketfilter &=
713                                     ~CMD_ACT_MAC_MULTICAST_ENABLE;
714                         } else {
715                                 int i;
716
717                                 adapter->currentpacketfilter |=
718                                     CMD_ACT_MAC_MULTICAST_ENABLE;
719
720                                 adapter->nr_of_multicastmacaddr =
721                                     libertas_copy_multicast_address(adapter, dev);
722
723                                 lbs_deb_net("multicast addresses: %d\n",
724                                        dev->mc_count);
725
726                                 for (i = 0; i < dev->mc_count; i++) {
727                                         lbs_deb_net("Multicast address %d:%s\n",
728                                                i, print_mac(mac,
729                                                adapter->multicastlist[i]));
730                                 }
731                                 /* send multicast addresses to firmware */
732                                 libertas_prepare_and_send_command(priv,
733                                                       CMD_MAC_MULTICAST_ADR,
734                                                       CMD_ACT_SET, 0, 0,
735                                                       NULL);
736                         }
737                 }
738         }
739
740         if (adapter->currentpacketfilter != oldpacketfilter) {
741                 libertas_set_mac_packet_filter(priv);
742         }
743
744         lbs_deb_leave(LBS_DEB_NET);
745 }
746
747 /**
748  *  @brief This function handles the major jobs in the WLAN driver.
749  *  It handles all events generated by firmware, RX data received
750  *  from firmware and TX data sent from kernel.
751  *
752  *  @param data    A pointer to wlan_thread structure
753  *  @return        0
754  */
755 static int libertas_thread(void *data)
756 {
757         struct net_device *dev = data;
758         wlan_private *priv = dev->priv;
759         wlan_adapter *adapter = priv->adapter;
760         wait_queue_t wait;
761         u8 ireg = 0;
762
763         lbs_deb_enter(LBS_DEB_THREAD);
764
765         init_waitqueue_entry(&wait, current);
766
767         set_freezable();
768         for (;;) {
769                 lbs_deb_thread( "main-thread 111: intcounter=%d "
770                        "currenttxskb=%p dnld_sent=%d\n",
771                        adapter->intcounter,
772                        adapter->currenttxskb, priv->dnld_sent);
773
774                 add_wait_queue(&priv->waitq, &wait);
775                 set_current_state(TASK_INTERRUPTIBLE);
776                 spin_lock_irq(&adapter->driver_lock);
777                 if ((adapter->psstate == PS_STATE_SLEEP) ||
778                     (!adapter->intcounter
779                      && (priv->dnld_sent || adapter->cur_cmd ||
780                          list_empty(&adapter->cmdpendingq)))) {
781                         lbs_deb_thread(
782                                "main-thread sleeping... Conn=%d IntC=%d PS_mode=%d PS_State=%d\n",
783                                adapter->connect_status, adapter->intcounter,
784                                adapter->psmode, adapter->psstate);
785                         spin_unlock_irq(&adapter->driver_lock);
786                         schedule();
787                 } else
788                         spin_unlock_irq(&adapter->driver_lock);
789
790                 lbs_deb_thread(
791                        "main-thread 222 (waking up): intcounter=%d currenttxskb=%p "
792                        "dnld_sent=%d\n", adapter->intcounter,
793                        adapter->currenttxskb, priv->dnld_sent);
794
795                 set_current_state(TASK_RUNNING);
796                 remove_wait_queue(&priv->waitq, &wait);
797                 try_to_freeze();
798
799                 lbs_deb_thread("main-thread 333: intcounter=%d currenttxskb=%p "
800                        "dnld_sent=%d\n",
801                        adapter->intcounter,
802                        adapter->currenttxskb, priv->dnld_sent);
803
804                 if (kthread_should_stop()
805                     || adapter->surpriseremoved) {
806                         lbs_deb_thread(
807                                "main-thread: break from main thread: surpriseremoved=0x%x\n",
808                                adapter->surpriseremoved);
809                         break;
810                 }
811
812
813                 spin_lock_irq(&adapter->driver_lock);
814                 if (adapter->intcounter) {
815                         u8 int_status;
816                         adapter->intcounter = 0;
817                         int_status = priv->hw_get_int_status(priv, &ireg);
818
819                         if (int_status) {
820                                 lbs_deb_thread(
821                                        "main-thread: reading HOST_INT_STATUS_REG failed\n");
822                                 spin_unlock_irq(&adapter->driver_lock);
823                                 continue;
824                         }
825                         adapter->hisregcpy |= ireg;
826                 }
827
828                 lbs_deb_thread("main-thread 444: intcounter=%d currenttxskb=%p "
829                        "dnld_sent=%d\n",
830                        adapter->intcounter,
831                        adapter->currenttxskb, priv->dnld_sent);
832
833                 /* command response? */
834                 if (adapter->hisregcpy & MRVDRV_CMD_UPLD_RDY) {
835                         lbs_deb_thread("main-thread: cmd response ready\n");
836
837                         adapter->hisregcpy &= ~MRVDRV_CMD_UPLD_RDY;
838                         spin_unlock_irq(&adapter->driver_lock);
839                         libertas_process_rx_command(priv);
840                         spin_lock_irq(&adapter->driver_lock);
841                 }
842
843                 /* Any Card Event */
844                 if (adapter->hisregcpy & MRVDRV_CARDEVENT) {
845                         lbs_deb_thread("main-thread: Card Event Activity\n");
846
847                         adapter->hisregcpy &= ~MRVDRV_CARDEVENT;
848
849                         if (priv->hw_read_event_cause(priv)) {
850                                 lbs_pr_alert(
851                                        "main-thread: hw_read_event_cause failed\n");
852                                 spin_unlock_irq(&adapter->driver_lock);
853                                 continue;
854                         }
855                         spin_unlock_irq(&adapter->driver_lock);
856                         libertas_process_event(priv);
857                 } else
858                         spin_unlock_irq(&adapter->driver_lock);
859
860                 /* Check if we need to confirm Sleep Request received previously */
861                 if (adapter->psstate == PS_STATE_PRE_SLEEP) {
862                         if (!priv->dnld_sent && !adapter->cur_cmd) {
863                                 if (adapter->connect_status ==
864                                     LIBERTAS_CONNECTED) {
865                                         lbs_deb_thread(
866                                                "main_thread: PRE_SLEEP--intcounter=%d currenttxskb=%p "
867                                                "dnld_sent=%d cur_cmd=%p, confirm now\n",
868                                                adapter->intcounter,
869                                                adapter->currenttxskb,
870                                                priv->dnld_sent,
871                                                adapter->cur_cmd);
872
873                                         libertas_ps_confirm_sleep(priv,
874                                                        (u16) adapter->psmode);
875                                 } else {
876                                         /* workaround for firmware sending
877                                          * deauth/linkloss event immediately
878                                          * after sleep request, remove this
879                                          * after firmware fixes it
880                                          */
881                                         adapter->psstate = PS_STATE_AWAKE;
882                                         lbs_pr_alert(
883                                                "main-thread: ignore PS_SleepConfirm in non-connected state\n");
884                                 }
885                         }
886                 }
887
888                 /* The PS state is changed during processing of Sleep Request
889                  * event above
890                  */
891                 if ((priv->adapter->psstate == PS_STATE_SLEEP) ||
892                     (priv->adapter->psstate == PS_STATE_PRE_SLEEP))
893                         continue;
894
895                 /* Execute the next command */
896                 if (!priv->dnld_sent && !priv->adapter->cur_cmd)
897                         libertas_execute_next_command(priv);
898
899                 /* Wake-up command waiters which can't sleep in
900                  * libertas_prepare_and_send_command
901                  */
902                 if (!adapter->nr_cmd_pending)
903                         wake_up_all(&adapter->cmd_pending);
904
905                 libertas_tx_runqueue(priv);
906         }
907
908         del_timer(&adapter->command_timer);
909         adapter->nr_cmd_pending = 0;
910         wake_up_all(&adapter->cmd_pending);
911
912         lbs_deb_leave(LBS_DEB_THREAD);
913         return 0;
914 }
915
916 /**
917  *  @brief This function downloads firmware image, gets
918  *  HW spec from firmware and set basic parameters to
919  *  firmware.
920  *
921  *  @param priv    A pointer to wlan_private structure
922  *  @return        0 or -1
923  */
924 static int wlan_setup_firmware(wlan_private * priv)
925 {
926         int ret = -1;
927         wlan_adapter *adapter = priv->adapter;
928         struct cmd_ds_mesh_access mesh_access;
929
930         lbs_deb_enter(LBS_DEB_FW);
931
932         /*
933          * Read MAC address from HW
934          */
935         memset(adapter->current_addr, 0xff, ETH_ALEN);
936
937         ret = libertas_prepare_and_send_command(priv, CMD_GET_HW_SPEC,
938                                     0, CMD_OPTION_WAITFORRSP, 0, NULL);
939
940         if (ret) {
941                 ret = -1;
942                 goto done;
943         }
944
945         libertas_set_mac_packet_filter(priv);
946
947         /* Get the supported Data rates */
948         ret = libertas_prepare_and_send_command(priv, CMD_802_11_DATA_RATE,
949                                     CMD_ACT_GET_TX_RATE,
950                                     CMD_OPTION_WAITFORRSP, 0, NULL);
951
952         if (ret) {
953                 ret = -1;
954                 goto done;
955         }
956
957         /* Disable mesh autostart */
958         if (priv->mesh_dev) {
959                 memset(&mesh_access, 0, sizeof(mesh_access));
960                 mesh_access.data[0] = cpu_to_le32(0);
961                 ret = libertas_prepare_and_send_command(priv,
962                                 CMD_MESH_ACCESS,
963                                 CMD_ACT_MESH_SET_AUTOSTART_ENABLED,
964                                 CMD_OPTION_WAITFORRSP, 0, (void *)&mesh_access);
965                 if (ret) {
966                         ret = -1;
967                         goto done;
968                 }
969                 priv->mesh_autostart_enabled = 0;
970         }
971
972        /* Set the boot2 version in firmware */
973        ret = libertas_prepare_and_send_command(priv, CMD_SET_BOOT2_VER,
974                                    0, CMD_OPTION_WAITFORRSP, 0, NULL);
975
976         ret = 0;
977 done:
978         lbs_deb_leave_args(LBS_DEB_FW, "ret %d", ret);
979         return ret;
980 }
981
982 /**
983  *  This function handles the timeout of command sending.
984  *  It will re-send the same command again.
985  */
986 static void command_timer_fn(unsigned long data)
987 {
988         wlan_private *priv = (wlan_private *)data;
989         wlan_adapter *adapter = priv->adapter;
990         struct cmd_ctrl_node *ptempnode;
991         struct cmd_ds_command *cmd;
992         unsigned long flags;
993
994         ptempnode = adapter->cur_cmd;
995         if (ptempnode == NULL) {
996                 lbs_deb_fw("ptempnode empty\n");
997                 return;
998         }
999
1000         cmd = (struct cmd_ds_command *)ptempnode->bufvirtualaddr;
1001         if (!cmd) {
1002                 lbs_deb_fw("cmd is NULL\n");
1003                 return;
1004         }
1005
1006         lbs_deb_fw("command_timer_fn fired, cmd %x\n", cmd->command);
1007
1008         if (!adapter->fw_ready)
1009                 return;
1010
1011         spin_lock_irqsave(&adapter->driver_lock, flags);
1012         adapter->cur_cmd = NULL;
1013         spin_unlock_irqrestore(&adapter->driver_lock, flags);
1014
1015         lbs_deb_fw("re-sending same command because of timeout\n");
1016         libertas_queue_cmd(adapter, ptempnode, 0);
1017
1018         wake_up_interruptible(&priv->waitq);
1019
1020         return;
1021 }
1022
1023 static int libertas_init_adapter(wlan_private * priv)
1024 {
1025         wlan_adapter *adapter = priv->adapter;
1026         size_t bufsize;
1027         int i, ret = 0;
1028
1029         /* Allocate buffer to store the BSSID list */
1030         bufsize = MAX_NETWORK_COUNT * sizeof(struct bss_descriptor);
1031         adapter->networks = kzalloc(bufsize, GFP_KERNEL);
1032         if (!adapter->networks) {
1033                 lbs_pr_err("Out of memory allocating beacons\n");
1034                 ret = -1;
1035                 goto out;
1036         }
1037
1038         /* Initialize scan result lists */
1039         INIT_LIST_HEAD(&adapter->network_free_list);
1040         INIT_LIST_HEAD(&adapter->network_list);
1041         for (i = 0; i < MAX_NETWORK_COUNT; i++) {
1042                 list_add_tail(&adapter->networks[i].list,
1043                               &adapter->network_free_list);
1044         }
1045
1046         adapter->libertas_ps_confirm_sleep.seqnum = cpu_to_le16(++adapter->seqnum);
1047         adapter->libertas_ps_confirm_sleep.command =
1048             cpu_to_le16(CMD_802_11_PS_MODE);
1049         adapter->libertas_ps_confirm_sleep.size =
1050             cpu_to_le16(sizeof(struct PS_CMD_ConfirmSleep));
1051         adapter->libertas_ps_confirm_sleep.action =
1052             cpu_to_le16(CMD_SUBCMD_SLEEP_CONFIRMED);
1053
1054         memset(adapter->current_addr, 0xff, ETH_ALEN);
1055
1056         adapter->connect_status = LIBERTAS_DISCONNECTED;
1057         adapter->secinfo.auth_mode = IW_AUTH_ALG_OPEN_SYSTEM;
1058         adapter->mode = IW_MODE_INFRA;
1059         adapter->curbssparams.channel = DEFAULT_AD_HOC_CHANNEL;
1060         adapter->currentpacketfilter = CMD_ACT_MAC_RX_ON | CMD_ACT_MAC_TX_ON;
1061         adapter->radioon = RADIO_ON;
1062         adapter->auto_rate = 1;
1063         adapter->capability = WLAN_CAPABILITY_SHORT_PREAMBLE;
1064         adapter->psmode = WLAN802_11POWERMODECAM;
1065         adapter->psstate = PS_STATE_FULL_POWER;
1066
1067         mutex_init(&adapter->lock);
1068
1069         memset(&adapter->tx_queue_ps, 0, NR_TX_QUEUE*sizeof(struct sk_buff*));
1070         adapter->tx_queue_idx = 0;
1071         spin_lock_init(&adapter->txqueue_lock);
1072
1073         setup_timer(&adapter->command_timer, command_timer_fn,
1074                     (unsigned long)priv);
1075
1076         INIT_LIST_HEAD(&adapter->cmdfreeq);
1077         INIT_LIST_HEAD(&adapter->cmdpendingq);
1078
1079         spin_lock_init(&adapter->driver_lock);
1080         init_waitqueue_head(&adapter->cmd_pending);
1081         adapter->nr_cmd_pending = 0;
1082
1083         /* Allocate the command buffers */
1084         if (libertas_allocate_cmd_buffer(priv)) {
1085                 lbs_pr_err("Out of memory allocating command buffers\n");
1086                 ret = -1;
1087         }
1088
1089 out:
1090         return ret;
1091 }
1092
1093 static void libertas_free_adapter(wlan_private * priv)
1094 {
1095         wlan_adapter *adapter = priv->adapter;
1096
1097         if (!adapter) {
1098                 lbs_deb_fw("why double free adapter?\n");
1099                 return;
1100         }
1101
1102         lbs_deb_fw("free command buffer\n");
1103         libertas_free_cmd_buffer(priv);
1104
1105         lbs_deb_fw("free command_timer\n");
1106         del_timer(&adapter->command_timer);
1107
1108         lbs_deb_fw("free scan results table\n");
1109         kfree(adapter->networks);
1110         adapter->networks = NULL;
1111
1112         /* Free the adapter object itself */
1113         lbs_deb_fw("free adapter\n");
1114         kfree(adapter);
1115         priv->adapter = NULL;
1116 }
1117
1118 /**
1119  * @brief This function adds the card. it will probe the
1120  * card, allocate the wlan_priv and initialize the device.
1121  *
1122  *  @param card    A pointer to card
1123  *  @return        A pointer to wlan_private structure
1124  */
1125 wlan_private *libertas_add_card(void *card, struct device *dmdev)
1126 {
1127         struct net_device *dev = NULL;
1128         wlan_private *priv = NULL;
1129
1130         lbs_deb_enter(LBS_DEB_NET);
1131
1132         /* Allocate an Ethernet device and register it */
1133         if (!(dev = alloc_etherdev(sizeof(wlan_private)))) {
1134                 lbs_pr_err("init ethX device failed\n");
1135                 goto done;
1136         }
1137         priv = dev->priv;
1138
1139         /* allocate buffer for wlan_adapter */
1140         if (!(priv->adapter = kzalloc(sizeof(wlan_adapter), GFP_KERNEL))) {
1141                 lbs_pr_err("allocate buffer for wlan_adapter failed\n");
1142                 goto err_kzalloc;
1143         }
1144
1145         if (libertas_init_adapter(priv)) {
1146                 lbs_pr_err("failed to initialize adapter structure.\n");
1147                 goto err_init_adapter;
1148         }
1149
1150         priv->dev = dev;
1151         priv->card = card;
1152         priv->mesh_open = 0;
1153         priv->infra_open = 0;
1154         priv->hotplug_device = dmdev;
1155
1156         /* Setup the OS Interface to our functions */
1157         dev->open = libertas_open;
1158         dev->hard_start_xmit = libertas_pre_start_xmit;
1159         dev->stop = libertas_close;
1160         dev->set_mac_address = libertas_set_mac_address;
1161         dev->tx_timeout = libertas_tx_timeout;
1162         dev->get_stats = libertas_get_stats;
1163         dev->watchdog_timeo = 5 * HZ;
1164         dev->ethtool_ops = &libertas_ethtool_ops;
1165 #ifdef  WIRELESS_EXT
1166         dev->wireless_handlers = (struct iw_handler_def *)&libertas_handler_def;
1167 #endif
1168 #define NETIF_F_DYNALLOC 16
1169         dev->features |= NETIF_F_DYNALLOC;
1170         dev->flags |= IFF_BROADCAST | IFF_MULTICAST;
1171         dev->set_multicast_list = libertas_set_multicast_list;
1172
1173         SET_NETDEV_DEV(dev, dmdev);
1174
1175         priv->rtap_net_dev = NULL;
1176         if (device_create_file(dmdev, &dev_attr_libertas_rtap))
1177                 goto err_init_adapter;
1178
1179         lbs_deb_thread("Starting main thread...\n");
1180         init_waitqueue_head(&priv->waitq);
1181         priv->main_thread = kthread_run(libertas_thread, dev, "libertas_main");
1182         if (IS_ERR(priv->main_thread)) {
1183                 lbs_deb_thread("Error creating main thread.\n");
1184                 goto err_kthread_run;
1185         }
1186
1187         priv->work_thread = create_singlethread_workqueue("libertas_worker");
1188         INIT_DELAYED_WORK(&priv->assoc_work, libertas_association_worker);
1189         INIT_DELAYED_WORK(&priv->scan_work, libertas_scan_worker);
1190         INIT_WORK(&priv->sync_channel, libertas_sync_channel);
1191
1192         goto done;
1193
1194 err_kthread_run:
1195         device_remove_file(dmdev, &dev_attr_libertas_rtap);
1196
1197 err_init_adapter:
1198         libertas_free_adapter(priv);
1199
1200 err_kzalloc:
1201         free_netdev(dev);
1202         priv = NULL;
1203
1204 done:
1205         lbs_deb_leave_args(LBS_DEB_NET, "priv %p", priv);
1206         return priv;
1207 }
1208 EXPORT_SYMBOL_GPL(libertas_add_card);
1209
1210
1211 int libertas_remove_card(wlan_private *priv)
1212 {
1213         wlan_adapter *adapter = priv->adapter;
1214         struct net_device *dev = priv->dev;
1215         union iwreq_data wrqu;
1216
1217         lbs_deb_enter(LBS_DEB_MAIN);
1218
1219         libertas_remove_rtap(priv);
1220
1221         dev = priv->dev;
1222         device_remove_file(priv->hotplug_device, &dev_attr_libertas_rtap);
1223
1224         cancel_delayed_work(&priv->scan_work);
1225         cancel_delayed_work(&priv->assoc_work);
1226         destroy_workqueue(priv->work_thread);
1227
1228         if (adapter->psmode == WLAN802_11POWERMODEMAX_PSP) {
1229                 adapter->psmode = WLAN802_11POWERMODECAM;
1230                 libertas_ps_wakeup(priv, CMD_OPTION_WAITFORRSP);
1231         }
1232
1233         memset(wrqu.ap_addr.sa_data, 0xaa, ETH_ALEN);
1234         wrqu.ap_addr.sa_family = ARPHRD_ETHER;
1235         wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL);
1236
1237         /* Stop the thread servicing the interrupts */
1238         adapter->surpriseremoved = 1;
1239         kthread_stop(priv->main_thread);
1240
1241         libertas_free_adapter(priv);
1242
1243         priv->dev = NULL;
1244         free_netdev(dev);
1245
1246         lbs_deb_leave(LBS_DEB_MAIN);
1247         return 0;
1248 }
1249 EXPORT_SYMBOL_GPL(libertas_remove_card);
1250
1251
1252 int libertas_start_card(wlan_private *priv)
1253 {
1254         struct net_device *dev = priv->dev;
1255         int ret = -1;
1256
1257         lbs_deb_enter(LBS_DEB_MAIN);
1258
1259         /* poke the firmware */
1260         ret = wlan_setup_firmware(priv);
1261         if (ret)
1262                 goto done;
1263
1264         /* init 802.11d */
1265         libertas_init_11d(priv);
1266
1267         if (register_netdev(dev)) {
1268                 lbs_pr_err("cannot register ethX device\n");
1269                 goto done;
1270         }
1271
1272         libertas_debugfs_init_one(priv, dev);
1273
1274         lbs_pr_info("%s: Marvell WLAN 802.11 adapter\n", dev->name);
1275
1276         ret = 0;
1277
1278 done:
1279         lbs_deb_leave_args(LBS_DEB_MAIN, "ret %d", ret);
1280         return ret;
1281 }
1282 EXPORT_SYMBOL_GPL(libertas_start_card);
1283
1284
1285 int libertas_stop_card(wlan_private *priv)
1286 {
1287         struct net_device *dev = priv->dev;
1288         int ret = -1;
1289         struct cmd_ctrl_node *cmdnode;
1290         unsigned long flags;
1291
1292         lbs_deb_enter(LBS_DEB_MAIN);
1293
1294         netif_stop_queue(priv->dev);
1295         netif_carrier_off(priv->dev);
1296
1297         libertas_debugfs_remove_one(priv);
1298
1299         /* Flush pending command nodes */
1300         spin_lock_irqsave(&priv->adapter->driver_lock, flags);
1301         list_for_each_entry(cmdnode, &priv->adapter->cmdpendingq, list) {
1302                 cmdnode->cmdwaitqwoken = 1;
1303                 wake_up_interruptible(&cmdnode->cmdwait_q);
1304         }
1305         spin_unlock_irqrestore(&priv->adapter->driver_lock, flags);
1306
1307         unregister_netdev(dev);
1308
1309         lbs_deb_leave_args(LBS_DEB_MAIN, "ret %d", ret);
1310         return ret;
1311 }
1312 EXPORT_SYMBOL_GPL(libertas_stop_card);
1313
1314
1315 /**
1316  * @brief This function adds mshX interface
1317  *
1318  *  @param priv    A pointer to the wlan_private structure
1319  *  @return        0 if successful, -X otherwise
1320  */
1321 int libertas_add_mesh(wlan_private *priv, struct device *dev)
1322 {
1323         struct net_device *mesh_dev = NULL;
1324         int ret = 0;
1325
1326         lbs_deb_enter(LBS_DEB_MESH);
1327
1328         /* Allocate a virtual mesh device */
1329         if (!(mesh_dev = alloc_netdev(0, "msh%d", ether_setup))) {
1330                 lbs_deb_mesh("init mshX device failed\n");
1331                 ret = -ENOMEM;
1332                 goto done;
1333         }
1334         mesh_dev->priv = priv;
1335         priv->mesh_dev = mesh_dev;
1336
1337         mesh_dev->open = libertas_mesh_open;
1338         mesh_dev->hard_start_xmit = libertas_mesh_pre_start_xmit;
1339         mesh_dev->stop = libertas_mesh_close;
1340         mesh_dev->get_stats = libertas_get_stats;
1341         mesh_dev->set_mac_address = libertas_set_mac_address;
1342         mesh_dev->ethtool_ops = &libertas_ethtool_ops;
1343         memcpy(mesh_dev->dev_addr, priv->dev->dev_addr,
1344                         sizeof(priv->dev->dev_addr));
1345
1346         SET_NETDEV_DEV(priv->mesh_dev, dev);
1347
1348 #ifdef  WIRELESS_EXT
1349         mesh_dev->wireless_handlers = (struct iw_handler_def *)&mesh_handler_def;
1350 #endif
1351 #define NETIF_F_DYNALLOC 16
1352
1353         /* Register virtual mesh interface */
1354         ret = register_netdev(mesh_dev);
1355         if (ret) {
1356                 lbs_pr_err("cannot register mshX virtual interface\n");
1357                 goto err_free;
1358         }
1359
1360         ret = sysfs_create_group(&(mesh_dev->dev.kobj), &libertas_mesh_attr_group);
1361         if (ret)
1362                 goto err_unregister;
1363
1364         /* Everything successful */
1365         ret = 0;
1366         goto done;
1367
1368 err_unregister:
1369         unregister_netdev(mesh_dev);
1370
1371 err_free:
1372         free_netdev(mesh_dev);
1373
1374 done:
1375         lbs_deb_leave_args(LBS_DEB_MESH, "ret %d", ret);
1376         return ret;
1377 }
1378 EXPORT_SYMBOL_GPL(libertas_add_mesh);
1379
1380
1381 void libertas_remove_mesh(wlan_private *priv)
1382 {
1383         struct net_device *mesh_dev;
1384
1385         lbs_deb_enter(LBS_DEB_MAIN);
1386
1387         if (!priv)
1388                 goto out;
1389
1390         mesh_dev = priv->mesh_dev;
1391
1392         netif_stop_queue(mesh_dev);
1393         netif_carrier_off(priv->mesh_dev);
1394
1395         sysfs_remove_group(&(mesh_dev->dev.kobj), &libertas_mesh_attr_group);
1396         unregister_netdev(mesh_dev);
1397
1398         priv->mesh_dev = NULL ;
1399         free_netdev(mesh_dev);
1400
1401 out:
1402         lbs_deb_leave(LBS_DEB_MAIN);
1403 }
1404 EXPORT_SYMBOL_GPL(libertas_remove_mesh);
1405
1406 /**
1407  *  @brief This function finds the CFP in
1408  *  region_cfp_table based on region and band parameter.
1409  *
1410  *  @param region  The region code
1411  *  @param band    The band
1412  *  @param cfp_no  A pointer to CFP number
1413  *  @return        A pointer to CFP
1414  */
1415 struct chan_freq_power *libertas_get_region_cfp_table(u8 region, u8 band, int *cfp_no)
1416 {
1417         int i, end;
1418
1419         lbs_deb_enter(LBS_DEB_MAIN);
1420
1421         end = ARRAY_SIZE(region_cfp_table);
1422
1423         for (i = 0; i < end ; i++) {
1424                 lbs_deb_main("region_cfp_table[i].region=%d\n",
1425                         region_cfp_table[i].region);
1426                 if (region_cfp_table[i].region == region) {
1427                         *cfp_no = region_cfp_table[i].cfp_no_BG;
1428                         lbs_deb_leave(LBS_DEB_MAIN);
1429                         return region_cfp_table[i].cfp_BG;
1430                 }
1431         }
1432
1433         lbs_deb_leave_args(LBS_DEB_MAIN, "ret NULL");
1434         return NULL;
1435 }
1436
1437 int libertas_set_regiontable(wlan_private * priv, u8 region, u8 band)
1438 {
1439         wlan_adapter *adapter = priv->adapter;
1440         int ret = 0;
1441         int i = 0;
1442
1443         struct chan_freq_power *cfp;
1444         int cfp_no;
1445
1446         lbs_deb_enter(LBS_DEB_MAIN);
1447
1448         memset(adapter->region_channel, 0, sizeof(adapter->region_channel));
1449
1450         {
1451                 cfp = libertas_get_region_cfp_table(region, band, &cfp_no);
1452                 if (cfp != NULL) {
1453                         adapter->region_channel[i].nrcfp = cfp_no;
1454                         adapter->region_channel[i].CFP = cfp;
1455                 } else {
1456                         lbs_deb_main("wrong region code %#x in band B/G\n",
1457                                region);
1458                         ret = -1;
1459                         goto out;
1460                 }
1461                 adapter->region_channel[i].valid = 1;
1462                 adapter->region_channel[i].region = region;
1463                 adapter->region_channel[i].band = band;
1464                 i++;
1465         }
1466 out:
1467         lbs_deb_leave_args(LBS_DEB_MAIN, "ret %d", ret);
1468         return ret;
1469 }
1470
1471 /**
1472  *  @brief This function handles the interrupt. it will change PS
1473  *  state if applicable. it will wake up main_thread to handle
1474  *  the interrupt event as well.
1475  *
1476  *  @param dev     A pointer to net_device structure
1477  *  @return        n/a
1478  */
1479 void libertas_interrupt(struct net_device *dev)
1480 {
1481         wlan_private *priv = dev->priv;
1482
1483         lbs_deb_enter(LBS_DEB_THREAD);
1484
1485         lbs_deb_thread("libertas_interrupt: intcounter=%d\n",
1486                priv->adapter->intcounter);
1487
1488         priv->adapter->intcounter++;
1489
1490         if (priv->adapter->psstate == PS_STATE_SLEEP) {
1491                 priv->adapter->psstate = PS_STATE_AWAKE;
1492                 netif_wake_queue(dev);
1493                 if (priv->mesh_dev)
1494                         netif_wake_queue(priv->mesh_dev);
1495         }
1496
1497         wake_up_interruptible(&priv->waitq);
1498
1499         lbs_deb_leave(LBS_DEB_THREAD);
1500 }
1501 EXPORT_SYMBOL_GPL(libertas_interrupt);
1502
1503 int libertas_reset_device(wlan_private *priv)
1504 {
1505         int ret;
1506
1507         lbs_deb_enter(LBS_DEB_MAIN);
1508         ret = libertas_prepare_and_send_command(priv, CMD_802_11_RESET,
1509                                     CMD_ACT_HALT, 0, 0, NULL);
1510         msleep_interruptible(10);
1511
1512         lbs_deb_leave_args(LBS_DEB_MAIN, "ret %d", ret);
1513         return ret;
1514 }
1515 EXPORT_SYMBOL_GPL(libertas_reset_device);
1516
1517 static int libertas_init_module(void)
1518 {
1519         lbs_deb_enter(LBS_DEB_MAIN);
1520         libertas_debugfs_init();
1521         lbs_deb_leave(LBS_DEB_MAIN);
1522         return 0;
1523 }
1524
1525 static void libertas_exit_module(void)
1526 {
1527         lbs_deb_enter(LBS_DEB_MAIN);
1528
1529         libertas_debugfs_remove();
1530
1531         lbs_deb_leave(LBS_DEB_MAIN);
1532 }
1533
1534 /*
1535  * rtap interface support fuctions
1536  */
1537
1538 static int libertas_rtap_open(struct net_device *dev)
1539 {
1540         netif_carrier_off(dev);
1541         netif_stop_queue(dev);
1542         return 0;
1543 }
1544
1545 static int libertas_rtap_stop(struct net_device *dev)
1546 {
1547         return 0;
1548 }
1549
1550 static int libertas_rtap_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
1551 {
1552         netif_stop_queue(dev);
1553         return -EOPNOTSUPP;
1554 }
1555
1556 static struct net_device_stats *libertas_rtap_get_stats(struct net_device *dev)
1557 {
1558         wlan_private *priv = dev->priv;
1559         return &priv->ieee->stats;
1560 }
1561
1562
1563 void libertas_remove_rtap(wlan_private *priv)
1564 {
1565         if (priv->rtap_net_dev == NULL)
1566                 return;
1567         unregister_netdev(priv->rtap_net_dev);
1568         free_ieee80211(priv->rtap_net_dev);
1569         priv->rtap_net_dev = NULL;
1570 }
1571
1572 int libertas_add_rtap(wlan_private *priv)
1573 {
1574         int rc = 0;
1575
1576         if (priv->rtap_net_dev)
1577                 return -EPERM;
1578
1579         priv->rtap_net_dev = alloc_ieee80211(0);
1580         if (priv->rtap_net_dev == NULL)
1581                 return -ENOMEM;
1582
1583
1584         priv->ieee = netdev_priv(priv->rtap_net_dev);
1585
1586         strcpy(priv->rtap_net_dev->name, "rtap%d");
1587
1588         priv->rtap_net_dev->type = ARPHRD_IEEE80211_RADIOTAP;
1589         priv->rtap_net_dev->open = libertas_rtap_open;
1590         priv->rtap_net_dev->stop = libertas_rtap_stop;
1591         priv->rtap_net_dev->get_stats = libertas_rtap_get_stats;
1592         priv->rtap_net_dev->hard_start_xmit = libertas_rtap_hard_start_xmit;
1593         priv->rtap_net_dev->set_multicast_list = libertas_set_multicast_list;
1594         priv->rtap_net_dev->priv = priv;
1595
1596         priv->ieee->iw_mode = IW_MODE_MONITOR;
1597
1598         rc = register_netdev(priv->rtap_net_dev);
1599         if (rc) {
1600                 free_ieee80211(priv->rtap_net_dev);
1601                 priv->rtap_net_dev = NULL;
1602                 return rc;
1603         }
1604
1605         return 0;
1606 }
1607
1608
1609 module_init(libertas_init_module);
1610 module_exit(libertas_exit_module);
1611
1612 MODULE_DESCRIPTION("Libertas WLAN Driver Library");
1613 MODULE_AUTHOR("Marvell International Ltd.");
1614 MODULE_LICENSE("GPL");