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[PATCH] libertas: remove WLAN_802_11_NETWORK_INFRASTRUCTURE enum
[net-next-2.6.git] / drivers / net / wireless / libertas / main.c
CommitLineData
876c9d3a
MT		 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/delay.h>
8#include <linux/freezer.h>
9#include <linux/etherdevice.h>
10#include <linux/netdevice.h>
11#include <linux/if_arp.h>
12
13#include <net/iw_handler.h>
14
15#include "host.h"
16#include "sbi.h"
17#include "decl.h"
18#include "dev.h"
19#include "fw.h"
20#include "wext.h"
21#include "debugfs.h"
22#include "assoc.h"
23
24#ifdef ENABLE_PM
25static struct pm_dev *wlan_pm_dev = NULL;
26#endif
27
28#define WLAN_TX_PWR_DEFAULT 20 /*100mW */
29#define WLAN_TX_PWR_US_DEFAULT 20 /*100mW */
30#define WLAN_TX_PWR_JP_DEFAULT 16 /*50mW */
31#define WLAN_TX_PWR_FR_DEFAULT 20 /*100mW */
32#define WLAN_TX_PWR_EMEA_DEFAULT 20 /*100mW */
33
34/* Format { channel, frequency (MHz), maxtxpower } */
35/* band: 'B/G', region: USA FCC/Canada IC */
36static struct chan_freq_power channel_freq_power_US_BG[] = {
37 {1, 2412, WLAN_TX_PWR_US_DEFAULT},
38 {2, 2417, WLAN_TX_PWR_US_DEFAULT},
39 {3, 2422, WLAN_TX_PWR_US_DEFAULT},
40 {4, 2427, WLAN_TX_PWR_US_DEFAULT},
41 {5, 2432, WLAN_TX_PWR_US_DEFAULT},
42 {6, 2437, WLAN_TX_PWR_US_DEFAULT},
43 {7, 2442, WLAN_TX_PWR_US_DEFAULT},
44 {8, 2447, WLAN_TX_PWR_US_DEFAULT},
45 {9, 2452, WLAN_TX_PWR_US_DEFAULT},
46 {10, 2457, WLAN_TX_PWR_US_DEFAULT},
47 {11, 2462, WLAN_TX_PWR_US_DEFAULT}
48};
49
50/* band: 'B/G', region: Europe ETSI */
51static struct chan_freq_power channel_freq_power_EU_BG[] = {
52 {1, 2412, WLAN_TX_PWR_EMEA_DEFAULT},
53 {2, 2417, WLAN_TX_PWR_EMEA_DEFAULT},
54 {3, 2422, WLAN_TX_PWR_EMEA_DEFAULT},
55 {4, 2427, WLAN_TX_PWR_EMEA_DEFAULT},
56 {5, 2432, WLAN_TX_PWR_EMEA_DEFAULT},
57 {6, 2437, WLAN_TX_PWR_EMEA_DEFAULT},
58 {7, 2442, WLAN_TX_PWR_EMEA_DEFAULT},
59 {8, 2447, WLAN_TX_PWR_EMEA_DEFAULT},
60 {9, 2452, WLAN_TX_PWR_EMEA_DEFAULT},
61 {10, 2457, WLAN_TX_PWR_EMEA_DEFAULT},
62 {11, 2462, WLAN_TX_PWR_EMEA_DEFAULT},
63 {12, 2467, WLAN_TX_PWR_EMEA_DEFAULT},
64 {13, 2472, WLAN_TX_PWR_EMEA_DEFAULT}
65};
66
67/* band: 'B/G', region: Spain */
68static struct chan_freq_power channel_freq_power_SPN_BG[] = {
69 {10, 2457, WLAN_TX_PWR_DEFAULT},
70 {11, 2462, WLAN_TX_PWR_DEFAULT}
71};
72
73/* band: 'B/G', region: France */
74static struct chan_freq_power channel_freq_power_FR_BG[] = {
75 {10, 2457, WLAN_TX_PWR_FR_DEFAULT},
76 {11, 2462, WLAN_TX_PWR_FR_DEFAULT},
77 {12, 2467, WLAN_TX_PWR_FR_DEFAULT},
78 {13, 2472, WLAN_TX_PWR_FR_DEFAULT}
79};
80
81/* band: 'B/G', region: Japan */
82static struct chan_freq_power channel_freq_power_JPN_BG[] = {
83 {1, 2412, WLAN_TX_PWR_JP_DEFAULT},
84 {2, 2417, WLAN_TX_PWR_JP_DEFAULT},
85 {3, 2422, WLAN_TX_PWR_JP_DEFAULT},
86 {4, 2427, WLAN_TX_PWR_JP_DEFAULT},
87 {5, 2432, WLAN_TX_PWR_JP_DEFAULT},
88 {6, 2437, WLAN_TX_PWR_JP_DEFAULT},
89 {7, 2442, WLAN_TX_PWR_JP_DEFAULT},
90 {8, 2447, WLAN_TX_PWR_JP_DEFAULT},
91 {9, 2452, WLAN_TX_PWR_JP_DEFAULT},
92 {10, 2457, WLAN_TX_PWR_JP_DEFAULT},
93 {11, 2462, WLAN_TX_PWR_JP_DEFAULT},
94 {12, 2467, WLAN_TX_PWR_JP_DEFAULT},
95 {13, 2472, WLAN_TX_PWR_JP_DEFAULT},
96 {14, 2484, WLAN_TX_PWR_JP_DEFAULT}
97};
98
99/**
100 * the structure for channel, frequency and power
101 */
102struct region_cfp_table {
103 u8 region;
104 struct chan_freq_power *cfp_BG;
105 int cfp_no_BG;
106};
107
108/**
109 * the structure for the mapping between region and CFP
110 */
111static struct region_cfp_table region_cfp_table[] = {
112 {0x10, /*US FCC */
113 channel_freq_power_US_BG,
114 sizeof(channel_freq_power_US_BG) / sizeof(struct chan_freq_power),
115 }
116 ,
117 {0x20, /*CANADA IC */
118 channel_freq_power_US_BG,
119 sizeof(channel_freq_power_US_BG) / sizeof(struct chan_freq_power),
120 }
121 ,
122 {0x30, /*EU*/ channel_freq_power_EU_BG,
123 sizeof(channel_freq_power_EU_BG) / sizeof(struct chan_freq_power),
124 }
125 ,
126 {0x31, /*SPAIN*/ channel_freq_power_SPN_BG,
127 sizeof(channel_freq_power_SPN_BG) / sizeof(struct chan_freq_power),
128 }
129 ,
130 {0x32, /*FRANCE*/ channel_freq_power_FR_BG,
131 sizeof(channel_freq_power_FR_BG) / sizeof(struct chan_freq_power),
132 }
133 ,
134 {0x40, /*JAPAN*/ channel_freq_power_JPN_BG,
135 sizeof(channel_freq_power_JPN_BG) / sizeof(struct chan_freq_power),
136 }
137 ,
138/*Add new region here */
139};
140
141/**
142 * the rates supported by the card
143 */
144u8 libertas_wlan_data_rates[WLAN_SUPPORTED_RATES] =
145 { 0x02, 0x04, 0x0B, 0x16, 0x00, 0x0C, 0x12,
146 0x18, 0x24, 0x30, 0x48, 0x60, 0x6C, 0x00
147};
148
149/**
150 * the rates supported
151 */
152u8 libertas_supported_rates[G_SUPPORTED_RATES] =
153 { 0x82, 0x84, 0x8b, 0x96, 0x0c, 0x12, 0x18, 0x24, 0x30, 0x48, 0x60, 0x6c,
1540 };
155
156/**
157 * the rates supported for ad-hoc G mode
158 */
159u8 libertas_adhoc_rates_g[G_SUPPORTED_RATES] =
160 { 0x82, 0x84, 0x8b, 0x96, 0x0c, 0x12, 0x18, 0x24, 0x30, 0x48, 0x60, 0x6c,
1610 };
162
163/**
164 * the rates supported for ad-hoc B mode
165 */
166u8 libertas_adhoc_rates_b[4] = { 0x82, 0x84, 0x8b, 0x96 };
167
168/**
169 * the global variable of a pointer to wlan_private
170 * structure variable
171 */
172static wlan_private *wlanpriv = NULL;
173
174#define MAX_DEVS 5
175static struct net_device *libertas_devs[MAX_DEVS];
176static int libertas_found = 0;
177
178/**
179 * the table to keep region code
180 */
181u16 libertas_region_code_to_index[MRVDRV_MAX_REGION_CODE] =
182 { 0x10, 0x20, 0x30, 0x31, 0x32, 0x40 };
183
184static u8 *default_fw_name = "usb8388.bin";
185
186/**
187 * Attributes exported through sysfs
188 */
876c9d3a
MT		 189
190/**
191 * @brief Get function for sysfs attribute libertas_mpp
192 */
b3f1b8cf
JL		 193static ssize_t libertas_mpp_get(struct device * dev,
194 struct device_attribute *attr, char * buf) {
876c9d3a
MT		 195 struct cmd_ds_mesh_access mesh_access;
196
197 memset(&mesh_access, 0, sizeof(mesh_access));
198 libertas_prepare_and_send_command(to_net_dev(dev)->priv,
199 cmd_mesh_access,
200 cmd_act_mesh_get_mpp,
201 cmd_option_waitforrsp, 0, (void *)&mesh_access);
202
203 return snprintf(buf, 3, "%d\n", mesh_access.data[0]);
204}
205
206/**
207 * @brief Set function for sysfs attribute libertas_mpp
208 */
b3f1b8cf
JL		 209static ssize_t libertas_mpp_set(struct device * dev,
210 struct device_attribute *attr, const char * buf, size_t count) {
876c9d3a
MT		 211 struct cmd_ds_mesh_access mesh_access;
212
213
214 memset(&mesh_access, 0, sizeof(mesh_access));
215 sscanf(buf, "%d", &(mesh_access.data[0]));
216 libertas_prepare_and_send_command((to_net_dev(dev))->priv,
217 cmd_mesh_access,
218 cmd_act_mesh_set_mpp,
219 cmd_option_waitforrsp, 0, (void *)&mesh_access);
220 return strlen(buf);
221}
222
223/**
224 * libertas_mpp attribute to be exported per mshX interface
225 * through sysfs (/sys/class/net/mshX/libertas-mpp)
226 */
b3f1b8cf 227static DEVICE_ATTR(libertas_mpp, 0644, libertas_mpp_get,
876c9d3a
MT		 228 libertas_mpp_set );
229
230/**
231 * @brief Check if the device can be open and wait if necessary.
232 *
233 * @param dev A pointer to net_device structure
234 * @return 0
235 *
236 * For USB adapter, on some systems the device open handler will be
237 * called before FW ready. Use the following flag check and wait
238 * function to work around the issue.
239 *
240 */
241static int pre_open_check(struct net_device *dev) {
242 wlan_private *priv = (wlan_private *) dev->priv;
243 wlan_adapter *adapter = priv->adapter;
244 int i = 0;
245
246 while (!adapter->fw_ready && i < 20) {
247 i++;
248 msleep_interruptible(100);
249 }
250 if (!adapter->fw_ready) {
251 lbs_pr_info("FW not ready, pre_open_check() return failure\n");
252 LEAVE();
253 return -1;
254 }
255
256 return 0;
257}
258
259/**
260 * @brief This function opens the device
261 *
262 * @param dev A pointer to net_device structure
263 * @return 0
264 */
265static int wlan_dev_open(struct net_device *dev)
266{
267 wlan_private *priv = (wlan_private *) dev->priv;
268 wlan_adapter *adapter = priv->adapter;
269
270 ENTER();
271
272
273 priv->open = 1;
274
275 if (adapter->connect_status == libertas_connected) {
276 netif_carrier_on(priv->wlan_dev.netdev);
277 } else
278 netif_carrier_off(priv->wlan_dev.netdev);
279
280 LEAVE();
281 return 0;
282}
283/**
284 * @brief This function opens the mshX interface
285 *
286 * @param dev A pointer to net_device structure
287 * @return 0
288 */
289static int mesh_open(struct net_device *dev)
290{
291 wlan_private *priv = (wlan_private *) dev->priv ;
292
293 if(pre_open_check(dev) == -1)
294 return -1;
295 priv->mesh_open = 1 ;
296 netif_start_queue(priv->mesh_dev);
297 if (priv->infra_open == 0)
298 return wlan_dev_open(priv->wlan_dev.netdev) ;
299 return 0;
300}
301
302/**
303 * @brief This function opens the ethX interface
304 *
305 * @param dev A pointer to net_device structure
306 * @return 0
307 */
308static int wlan_open(struct net_device *dev)
309{
310 wlan_private *priv = (wlan_private *) dev->priv ;
311
312 if(pre_open_check(dev) == -1)
313 return -1;
314 priv->infra_open = 1 ;
315 netif_wake_queue(priv->wlan_dev.netdev);
316 if (priv->open == 0)
317 return wlan_dev_open(priv->wlan_dev.netdev) ;
318 return 0;
319}
320
321static int wlan_dev_close(struct net_device *dev)
322{
323 wlan_private *priv = dev->priv;
324
325 ENTER();
326
327 netif_carrier_off(priv->wlan_dev.netdev);
328 priv->open = 0;
329
330 LEAVE();
331 return 0;
332}
333
334/**
335 * @brief This function closes the mshX interface
336 *
337 * @param dev A pointer to net_device structure
338 * @return 0
339 */
340static int mesh_close(struct net_device *dev)
341{
342 wlan_private *priv = (wlan_private *) (dev->priv);
343
344 priv->mesh_open = 0;
345 netif_stop_queue(priv->mesh_dev);
346 if (priv->infra_open == 0)
347 return wlan_dev_close( ((wlan_private *) dev->priv)->wlan_dev.netdev) ;
348 else
349 return 0;
350}
351
352/**
353 * @brief This function closes the ethX interface
354 *
355 * @param dev A pointer to net_device structure
356 * @return 0
357 */
358static int wlan_close(struct net_device *dev) {
359 wlan_private *priv = (wlan_private *) dev->priv;
360
361 netif_stop_queue(priv->wlan_dev.netdev);
362 priv->infra_open = 0;
363 if (priv->mesh_open == 0)
364 return wlan_dev_close( ((wlan_private *) dev->priv)->wlan_dev.netdev) ;
365 else
366 return 0;
367}
368
369
370#ifdef ENABLE_PM
371
372/**
373 * @brief This function is a callback function. it is called by
374 * kernel to enter or exit power saving mode.
375 *
376 * @param pmdev A pointer to pm_dev
377 * @param pmreq pm_request_t
378 * @param pmdata A pointer to pmdata
379 * @return 0 or -1
380 */
381static int wlan_pm_callback(struct pm_dev *pmdev, pm_request_t pmreq,
382 void *pmdata)
383{
384 wlan_private *priv = wlanpriv;
385 wlan_adapter *adapter = priv->adapter;
386 struct net_device *dev = priv->wlan_dev.netdev;
387
388 lbs_pr_debug(1, "WPRM_PM_CALLBACK: pmreq = %d.\n", pmreq);
389
390 switch (pmreq) {
391 case PM_SUSPEND:
392 lbs_pr_debug(1, "WPRM_PM_CALLBACK: enter PM_SUSPEND.\n");
393
394 /* in associated mode */
395 if (adapter->connect_status == libertas_connected) {
396 if ((adapter->psstate != PS_STATE_SLEEP)
397 ) {
398 lbs_pr_debug(1,
399 "wlan_pm_callback: can't enter sleep mode\n");
400 return -1;
401 } else {
402
403 /*
404 * Detach the network interface
405 * if the network is running
406 */
407 if (netif_running(dev)) {
408 netif_device_detach(dev);
409 lbs_pr_debug(1,
410 "netif_device_detach().\n");
411 }
412 libertas_sbi_suspend(priv);
413 }
414 break;
415 }
416
417 /* in non associated mode */
418
419 /*
420 * Detach the network interface
421 * if the network is running
422 */
423 if (netif_running(dev))
424 netif_device_detach(dev);
425
426 /*
427 * Storing and restoring of the regs be taken care
428 * at the driver rest will be done at wlan driver
429 * this makes driver independent of the card
430 */
431
432 libertas_sbi_suspend(priv);
433
434 break;
435
436 case PM_RESUME:
437 /* in associated mode */
438 if (adapter->connect_status == libertas_connected) {
439 {
440 /*
441 * Bring the inteface up first
442 * This case should not happen still ...
443 */
444 libertas_sbi_resume(priv);
445
446 /*
447 * Attach the network interface
448 * if the network is running
449 */
450 if (netif_running(dev)) {
451 netif_device_attach(dev);
452 lbs_pr_debug(1,
453 "after netif_device_attach().\n");
454 }
455 lbs_pr_debug(1,
456 "After netif attach, in associated mode.\n");
457 }
458 break;
459 }
460
461 /* in non associated mode */
462
463 /*
464 * Bring the inteface up first
465 * This case should not happen still ...
466 */
467
468 libertas_sbi_resume(priv);
469
470 if (netif_running(dev))
471 netif_device_attach(dev);
472
473 lbs_pr_debug(1, "after netif attach, in NON associated mode.\n");
474 break;
475 }
476
477 return 0;
478}
479#endif /* ENABLE_PM */
480
481static int wlan_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
482{
483 int ret = 0;
484 wlan_private *priv = dev->priv;
485
486 ENTER();
487
488 if (priv->wlan_dev.dnld_sent || priv->adapter->TxLockFlag) {
489 priv->stats.tx_dropped++;
490 goto done;
491 }
492
493 netif_stop_queue(priv->wlan_dev.netdev);
494
495 if (libertas_process_tx(priv, skb) == 0)
496 dev->trans_start = jiffies;
497done:
498 LEAVE();
499 return ret;
500}
501
502/**
503 * @brief Mark mesh packets and handover them to wlan_hard_start_xmit
504 *
505 */
506static int mesh_pre_start_xmit(struct sk_buff *skb, struct net_device *dev)
507{
508 wlan_private *priv = dev->priv;
509 ENTER();
510 SET_MESH_FRAME(skb);
511 LEAVE();
512
513 return wlan_hard_start_xmit(skb, priv->wlan_dev.netdev);
514}
515
516/**
517 * @brief Mark non-mesh packets and handover them to wlan_hard_start_xmit
518 *
519 */
520static int wlan_pre_start_xmit(struct sk_buff *skb, struct net_device *dev) {
521 ENTER();
522 UNSET_MESH_FRAME(skb);
523 LEAVE();
524 return wlan_hard_start_xmit(skb, dev);
525}
526
527static void wlan_tx_timeout(struct net_device *dev)
528{
529 wlan_private *priv = (wlan_private *) dev->priv;
530
531 ENTER();
532
533 lbs_pr_err("tx watch dog timeout!\n");
534
535 priv->wlan_dev.dnld_sent = DNLD_RES_RECEIVED;
536 dev->trans_start = jiffies;
537
538 if (priv->adapter->currenttxskb) {
539 if (priv->adapter->radiomode == WLAN_RADIOMODE_RADIOTAP) {
540 /* If we are here, we have not received feedback from
541 the previous packet. Assume TX_FAIL and move on. */
542 priv->adapter->eventcause = 0x01000000;
543 libertas_send_tx_feedback(priv);
544 } else
545 wake_up_interruptible(&priv->mainthread.waitq);
546 } else if (priv->adapter->connect_status == libertas_connected)
547 netif_wake_queue(priv->wlan_dev.netdev);
548
549 LEAVE();
550}
551
552/**
553 * @brief This function returns the network statistics
554 *
555 * @param dev A pointer to wlan_private structure
556 * @return A pointer to net_device_stats structure
557 */
558static struct net_device_stats *wlan_get_stats(struct net_device *dev)
559{
560 wlan_private *priv = (wlan_private *) dev->priv;
561
562 return &priv->stats;
563}
564
565static int wlan_set_mac_address(struct net_device *dev, void *addr)
566{
567 int ret = 0;
568 wlan_private *priv = (wlan_private *) dev->priv;
569 wlan_adapter *adapter = priv->adapter;
570 struct sockaddr *phwaddr = addr;
571
572 ENTER();
573
574 memset(adapter->current_addr, 0, ETH_ALEN);
575
576 /* dev->dev_addr is 8 bytes */
577 lbs_dbg_hex("dev->dev_addr:", dev->dev_addr, ETH_ALEN);
578
579 lbs_dbg_hex("addr:", phwaddr->sa_data, ETH_ALEN);
580 memcpy(adapter->current_addr, phwaddr->sa_data, ETH_ALEN);
581
582 ret = libertas_prepare_and_send_command(priv, cmd_802_11_mac_address,
583 cmd_act_set,
584 cmd_option_waitforrsp, 0, NULL);
585
586 if (ret) {
587 lbs_pr_debug(1, "set mac address failed.\n");
588 ret = -1;
589 goto done;
590 }
591
592 lbs_dbg_hex("adapter->macaddr:", adapter->current_addr, ETH_ALEN);
593 memcpy(dev->dev_addr, adapter->current_addr, ETH_ALEN);
594 memcpy(((wlan_private *) dev->priv)->mesh_dev->dev_addr, adapter->current_addr, ETH_ALEN);
595
596done:
597 LEAVE();
598 return ret;
599}
600
601static int wlan_copy_multicast_address(wlan_adapter * adapter,
602 struct net_device *dev)
603{
604 int i = 0;
605 struct dev_mc_list *mcptr = dev->mc_list;
606
607 for (i = 0; i < dev->mc_count; i++) {
608 memcpy(&adapter->multicastlist[i], mcptr->dmi_addr, ETH_ALEN);
609 mcptr = mcptr->next;
610 }
611
612 return i;
613
614}
615
616static void wlan_set_multicast_list(struct net_device *dev)
617{
618 wlan_private *priv = dev->priv;
619 wlan_adapter *adapter = priv->adapter;
620 int oldpacketfilter;
621
622 ENTER();
623
624 oldpacketfilter = adapter->currentpacketfilter;
625
626 if (dev->flags & IFF_PROMISC) {
627 lbs_pr_debug(1, "enable Promiscuous mode\n");
628 adapter->currentpacketfilter |=
629 cmd_act_mac_promiscuous_enable;
630 adapter->currentpacketfilter &=
631 ~(cmd_act_mac_all_multicast_enable |
632 cmd_act_mac_multicast_enable);
633 } else {
634 /* Multicast */
635 adapter->currentpacketfilter &=
636 ~cmd_act_mac_promiscuous_enable;
637
638 if (dev->flags & IFF_ALLMULTI || dev->mc_count >
639 MRVDRV_MAX_MULTICAST_LIST_SIZE) {
640 lbs_pr_debug(1, "Enabling All Multicast!\n");
641 adapter->currentpacketfilter |=
642 cmd_act_mac_all_multicast_enable;
643 adapter->currentpacketfilter &=
644 ~cmd_act_mac_multicast_enable;
645 } else {
646 adapter->currentpacketfilter &=
647 ~cmd_act_mac_all_multicast_enable;
648
649 if (!dev->mc_count) {
650 lbs_pr_debug(1, "No multicast addresses - "
651 "disabling multicast!\n");
652 adapter->currentpacketfilter &=
653 ~cmd_act_mac_multicast_enable;
654 } else {
655 int i;
656
657 adapter->currentpacketfilter |=
658 cmd_act_mac_multicast_enable;
659
660 adapter->nr_of_multicastmacaddr =
661 wlan_copy_multicast_address(adapter, dev);
662
663 lbs_pr_debug(1, "Multicast addresses: %d\n",
664 dev->mc_count);
665
666 for (i = 0; i < dev->mc_count; i++) {
667 lbs_pr_debug(1, "Multicast address %d:"
668 "%x %x %x %x %x %x\n", i,
669 adapter->multicastlist[i][0],
670 adapter->multicastlist[i][1],
671 adapter->multicastlist[i][2],
672 adapter->multicastlist[i][3],
673 adapter->multicastlist[i][4],
674 adapter->multicastlist[i][5]);
675 }
676 /* set multicast addresses to firmware */
677 libertas_prepare_and_send_command(priv,
678 cmd_mac_multicast_adr,
679 cmd_act_set, 0, 0,
680 NULL);
681 }
682 }
683 }
684
685 if (adapter->currentpacketfilter != oldpacketfilter) {
686 libertas_set_mac_packet_filter(priv);
687 }
688
689 LEAVE();
690}
691
692/**
693 * @brief This function hanldes the major job in WLAN driver.
694 * it handles the event generated by firmware, rx data received
695 * from firmware and tx data sent from kernel.
696 *
697 * @param data A pointer to wlan_thread structure
698 * @return 0
699 */
700static int wlan_service_main_thread(void *data)
701{
702 struct wlan_thread *thread = data;
703 wlan_private *priv = thread->priv;
704 wlan_adapter *adapter = priv->adapter;
705 wait_queue_t wait;
706 u8 ireg = 0;
707
708 ENTER();
709
710 wlan_activate_thread(thread);
711
712 init_waitqueue_entry(&wait, current);
713
714 for (;;) {
715 lbs_pr_debug(1, "main-thread 111: intcounter=%d "
716 "currenttxskb=%p dnld_sent=%d\n",
717 adapter->intcounter,
718 adapter->currenttxskb, priv->wlan_dev.dnld_sent);
719
720 add_wait_queue(&thread->waitq, &wait);
721 set_current_state(TASK_INTERRUPTIBLE);
722 spin_lock_irq(&adapter->driver_lock);
723 if ((adapter->psstate == PS_STATE_SLEEP) ||
724 (!adapter->intcounter
725 && (priv->wlan_dev.dnld_sent || adapter->cur_cmd ||
726 list_empty(&adapter->cmdpendingq)))) {
727 lbs_pr_debug(1,
728 "main-thread sleeping... Conn=%d IntC=%d PS_mode=%d PS_State=%d\n",
729 adapter->connect_status, adapter->intcounter,
730 adapter->psmode, adapter->psstate);
731 spin_unlock_irq(&adapter->driver_lock);
732 schedule();
733 } else
734 spin_unlock_irq(&adapter->driver_lock);
735
736
737 lbs_pr_debug(1,
738 "main-thread 222 (waking up): intcounter=%d currenttxskb=%p "
739 "dnld_sent=%d\n", adapter->intcounter,
740 adapter->currenttxskb, priv->wlan_dev.dnld_sent);
741
742 set_current_state(TASK_RUNNING);
743 remove_wait_queue(&thread->waitq, &wait);
744 try_to_freeze();
745
746 lbs_pr_debug(1, "main-thread 333: intcounter=%d currenttxskb=%p "
747 "dnld_sent=%d\n",
748 adapter->intcounter,
749 adapter->currenttxskb, priv->wlan_dev.dnld_sent);
750
751 if (kthread_should_stop()
752 || adapter->surpriseremoved) {
753 lbs_pr_debug(1,
754 "main-thread: break from main thread: surpriseremoved=0x%x\n",
755 adapter->surpriseremoved);
756 break;
757 }
758
759
760 spin_lock_irq(&adapter->driver_lock);
761 if (adapter->intcounter) {
762 u8 int_status;
763 adapter->intcounter = 0;
764 int_status = libertas_sbi_get_int_status(priv, &ireg);
765
766 if (int_status) {
767 lbs_pr_debug(1,
768 "main-thread: reading HOST_INT_STATUS_REG failed\n");
769 spin_unlock_irq(&adapter->driver_lock);
770 continue;
771 }
772 adapter->hisregcpy |= ireg;
773 }
774
775 lbs_pr_debug(1, "main-thread 444: intcounter=%d currenttxskb=%p "
776 "dnld_sent=%d\n",
777 adapter->intcounter,
778 adapter->currenttxskb, priv->wlan_dev.dnld_sent);
779
780 /* command response? */
781 if (adapter->hisregcpy & his_cmdupldrdy) {
782 lbs_pr_debug(1, "main-thread: cmd response ready.\n");
783
784 adapter->hisregcpy &= ~his_cmdupldrdy;
785 spin_unlock_irq(&adapter->driver_lock);
786 libertas_process_rx_command(priv);
787 spin_lock_irq(&adapter->driver_lock);
788 }
789
790 /* Any Card Event */
791 if (adapter->hisregcpy & his_cardevent) {
792 lbs_pr_debug(1, "main-thread: Card Event Activity.\n");
793
794 adapter->hisregcpy &= ~his_cardevent;
795
796 if (libertas_sbi_read_event_cause(priv)) {
797 lbs_pr_alert(
798 "main-thread: libertas_sbi_read_event_cause failed.\n");
799 spin_unlock_irq(&adapter->driver_lock);
800 continue;
801 }
802 spin_unlock_irq(&adapter->driver_lock);
803 libertas_process_event(priv);
804 } else
805 spin_unlock_irq(&adapter->driver_lock);
806
807 /* Check if we need to confirm Sleep Request received previously */
808 if (adapter->psstate == PS_STATE_PRE_SLEEP) {
809 if (!priv->wlan_dev.dnld_sent && !adapter->cur_cmd) {
810 if (adapter->connect_status ==
811 libertas_connected) {
812 lbs_pr_debug(1,
813 "main_thread: PRE_SLEEP--intcounter=%d currenttxskb=%p "
814 "dnld_sent=%d cur_cmd=%p, confirm now\n",
815 adapter->intcounter,
816 adapter->currenttxskb,
817 priv->wlan_dev.dnld_sent,
818 adapter->cur_cmd);
819
820 libertas_ps_confirm_sleep(priv,
821 (u16) adapter->psmode);
822 } else {
823 /* workaround for firmware sending
824 * deauth/linkloss event immediately
825 * after sleep request, remove this
826 * after firmware fixes it
827 */
828 adapter->psstate = PS_STATE_AWAKE;
829 lbs_pr_alert(
830 "main-thread: ignore PS_SleepConfirm in non-connected state\n");
831 }
832 }
833 }
834
835 /* The PS state is changed during processing of Sleep Request
836 * event above
837 */
838 if ((priv->adapter->psstate == PS_STATE_SLEEP) ||
839 (priv->adapter->psstate == PS_STATE_PRE_SLEEP))
840 continue;
841
842 /* Execute the next command */
843 if (!priv->wlan_dev.dnld_sent && !priv->adapter->cur_cmd)
844 libertas_execute_next_command(priv);
845
846 /* Wake-up command waiters which can't sleep in
847 * libertas_prepare_and_send_command
848 */
849 if (!adapter->nr_cmd_pending)
850 wake_up_all(&adapter->cmd_pending);
851
852 libertas_tx_runqueue(priv);
853 }
854
855 del_timer(&adapter->command_timer);
856 adapter->nr_cmd_pending = 0;
857 wake_up_all(&adapter->cmd_pending);
858 wlan_deactivate_thread(thread);
859
860 LEAVE();
861 return 0;
862}
863
864/**
865 * @brief This function adds the card. it will probe the
866 * card, allocate the wlan_priv and initialize the device.
867 *
868 * @param card A pointer to card
869 * @return A pointer to wlan_private structure
870 */
871wlan_private *wlan_add_card(void *card)
872{
873 struct net_device *dev = NULL;
874 struct net_device *mesh_dev = NULL;
875 wlan_private *priv = NULL;
876
877 ENTER();
878
879 /* Allocate an Ethernet device and register it */
880 if (!(dev = alloc_etherdev(sizeof(wlan_private)))) {
881 lbs_pr_alert( "Init ethernet device failed!\n");
882 return NULL;
883 }
884
885 priv = dev->priv;
886
887 /* allocate buffer for wlan_adapter */
888 if (!(priv->adapter = kmalloc(sizeof(wlan_adapter), GFP_KERNEL))) {
889 lbs_pr_alert( "Allocate buffer for wlan_adapter failed!\n");
890 goto err_kmalloc;
891 }
892
893 /* Allocate a virtual mesh device */
894 if (!(mesh_dev = alloc_netdev(0, "msh%d", ether_setup))) {
895 lbs_pr_debug(1, "Init ethernet device failed!\n");
896 return NULL;
897 }
898
899 /* Both intervaces share the priv structure */
900 mesh_dev->priv = priv;
901
902 /* init wlan_adapter */
903 memset(priv->adapter, 0, sizeof(wlan_adapter));
904
905 priv->wlan_dev.netdev = dev;
906 priv->wlan_dev.card = card;
907 priv->mesh_open = 0;
908 priv->infra_open = 0;
909 priv->mesh_dev = mesh_dev;
910 wlanpriv = priv;
911
912 SET_MODULE_OWNER(dev);
913 SET_MODULE_OWNER(mesh_dev);
914
915 /* Setup the OS Interface to our functions */
916 dev->open = wlan_open;
917 dev->hard_start_xmit = wlan_pre_start_xmit;
918 dev->stop = wlan_close;
919 dev->do_ioctl = libertas_do_ioctl;
920 dev->set_mac_address = wlan_set_mac_address;
921 mesh_dev->open = mesh_open;
922 mesh_dev->hard_start_xmit = mesh_pre_start_xmit;
923 mesh_dev->stop = mesh_close;
924 mesh_dev->do_ioctl = libertas_do_ioctl;
925 memcpy(mesh_dev->dev_addr, wlanpriv->wlan_dev.netdev->dev_addr,
926 sizeof(wlanpriv->wlan_dev.netdev->dev_addr));
927
928#define WLAN_WATCHDOG_TIMEOUT (5 * HZ)
929
930 dev->tx_timeout = wlan_tx_timeout;
931 dev->get_stats = wlan_get_stats;
932 dev->watchdog_timeo = WLAN_WATCHDOG_TIMEOUT;
933 dev->ethtool_ops = &libertas_ethtool_ops;
934 mesh_dev->get_stats = wlan_get_stats;
935 mesh_dev->ethtool_ops = &libertas_ethtool_ops;
936
937#ifdef WIRELESS_EXT
938 dev->wireless_handlers = (struct iw_handler_def *)&libertas_handler_def;
939 mesh_dev->wireless_handlers = (struct iw_handler_def *)&libertas_handler_def;
940#endif
941#define NETIF_F_DYNALLOC 16
942 dev->features |= NETIF_F_DYNALLOC;
943 dev->flags |= IFF_BROADCAST | IFF_MULTICAST;
944 dev->set_multicast_list = wlan_set_multicast_list;
945
946 INIT_LIST_HEAD(&priv->adapter->cmdfreeq);
947 INIT_LIST_HEAD(&priv->adapter->cmdpendingq);
948
949 spin_lock_init(&priv->adapter->driver_lock);
950 init_waitqueue_head(&priv->adapter->cmd_pending);
951 priv->adapter->nr_cmd_pending = 0;
952
953 lbs_pr_debug(1, "Starting kthread...\n");
954 priv->mainthread.priv = priv;
955 wlan_create_thread(wlan_service_main_thread,
956 &priv->mainthread, "wlan_main_service");
957
958 priv->assoc_thread =
959 create_singlethread_workqueue("libertas_assoc");
960 INIT_DELAYED_WORK(&priv->assoc_work, wlan_association_worker);
961
962 /*
963 * Register the device. Fillup the private data structure with
964 * relevant information from the card and request for the required
965 * IRQ.
966 */
967 if (libertas_sbi_register_dev(priv) < 0) {
968 lbs_pr_info("failed to register wlan device!\n");
969 goto err_registerdev;
970 }
971
972 /* init FW and HW */
973 if (libertas_init_fw(priv)) {
974 lbs_pr_debug(1, "Firmware Init failed\n");
975 goto err_registerdev;
976 }
977
978 if (register_netdev(dev)) {
979 lbs_pr_err("Cannot register network device!\n");
980 goto err_init_fw;
981 }
982
983 /* Register virtual mesh interface */
984 if (register_netdev(mesh_dev)) {
985 lbs_pr_info("Cannot register mesh virtual interface!\n");
986 goto err_init_fw;
987 }
988
989 lbs_pr_info("%s: Marvell Wlan 802.11 adapter ", dev->name);
990
991 libertas_debugfs_init_one(priv, dev);
992
993 if (libertas_found == MAX_DEVS)
994 goto err_init_fw;
995 libertas_devs[libertas_found] = dev;
996 libertas_found++;
997#ifdef ENABLE_PM
998 if (!(wlan_pm_dev = pm_register(PM_UNKNOWN_DEV, 0, wlan_pm_callback)))
999 lbs_pr_alert( "failed to register PM callback\n");
1000#endif
b3f1b8cf 1001 if (device_create_file(&(mesh_dev->dev), &dev_attr_libertas_mpp))
876c9d3a
MT		 1002 goto err_create_file;
1003
1004 LEAVE();
1005 return priv;
1006
1007err_create_file:
b3f1b8cf 1008 device_remove_file(&(mesh_dev->dev), &dev_attr_libertas_mpp);
876c9d3a
MT		 1009err_init_fw:
1010 libertas_sbi_unregister_dev(priv);
1011err_registerdev:
1012 destroy_workqueue(priv->assoc_thread);
1013 /* Stop the thread servicing the interrupts */
1014 wake_up_interruptible(&priv->mainthread.waitq);
1015 wlan_terminate_thread(&priv->mainthread);
1016 kfree(priv->adapter);
1017err_kmalloc:
1018 free_netdev(dev);
1019 free_netdev(mesh_dev);
1020 wlanpriv = NULL;
1021
1022 LEAVE();
1023 return NULL;
1024}
1025
1026static void wake_pending_cmdnodes(wlan_private *priv)
1027{
1028 struct cmd_ctrl_node *cmdnode;
1029 unsigned long flags;
1030
1031 spin_lock_irqsave(&priv->adapter->driver_lock, flags);
1032 list_for_each_entry(cmdnode, &priv->adapter->cmdpendingq, list) {
1033 cmdnode->cmdwaitqwoken = 1;
1034 wake_up_interruptible(&cmdnode->cmdwait_q);
1035 }
1036 spin_unlock_irqrestore(&priv->adapter->driver_lock, flags);
1037}
1038
1039
1040int wlan_remove_card(void *card)
1041{
1042 wlan_private *priv = libertas_sbi_get_priv(card);
1043 wlan_adapter *adapter;
1044 struct net_device *dev;
1045 struct net_device *mesh_dev;
1046 union iwreq_data wrqu;
1047 int i;
1048
1049 ENTER();
1050
1051 if (!priv) {
1052 LEAVE();
1053 return 0;
1054 }
1055
1056 adapter = priv->adapter;
1057
1058 if (!adapter) {
1059 LEAVE();
1060 return 0;
1061 }
1062
1063 dev = priv->wlan_dev.netdev;
1064 mesh_dev = priv->mesh_dev;
1065
1066 netif_stop_queue(mesh_dev);
1067 netif_stop_queue(priv->wlan_dev.netdev);
1068 netif_carrier_off(priv->wlan_dev.netdev);
1069
1070 wake_pending_cmdnodes(priv);
1071
b3f1b8cf 1072 device_remove_file(&(mesh_dev->dev), &dev_attr_libertas_mpp);
876c9d3a
MT		 1073 unregister_netdev(mesh_dev);
1074 unregister_netdev(dev);
1075
1076 cancel_delayed_work(&priv->assoc_work);
1077 destroy_workqueue(priv->assoc_thread);
1078
1079 if (adapter->psmode == wlan802_11powermodemax_psp) {
1080 adapter->psmode = wlan802_11powermodecam;
1081 libertas_ps_wakeup(priv, cmd_option_waitforrsp);
1082 }
1083
1084 memset(wrqu.ap_addr.sa_data, 0xaa, ETH_ALEN);
1085 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
1086 wireless_send_event(priv->wlan_dev.netdev, SIOCGIWAP, &wrqu, NULL);
1087
1088#ifdef ENABLE_PM
1089 pm_unregister(wlan_pm_dev);
1090#endif
1091
1092 adapter->surpriseremoved = 1;
1093
1094 /* Stop the thread servicing the interrupts */
1095 wlan_terminate_thread(&priv->mainthread);
1096
1097 libertas_debugfs_remove_one(priv);
1098
1099 lbs_pr_debug(1, "Free adapter\n");
1100 libertas_free_adapter(priv);
1101
1102 for (i = 0; i<libertas_found; i++) {
1103 if (libertas_devs[i]==priv->wlan_dev.netdev) {
1104 libertas_devs[i] = libertas_devs[--libertas_found];
1105 libertas_devs[libertas_found] = NULL ;
1106 break ;
1107 }
1108 }
1109
1110 lbs_pr_debug(1, "Unregister finish\n");
1111
1112 priv->wlan_dev.netdev = NULL;
1113 priv->mesh_dev = NULL ;
1114 free_netdev(mesh_dev);
1115 free_netdev(dev);
1116 wlanpriv = NULL;
1117
1118 LEAVE();
1119 return 0;
1120}
1121
1122/**
1123 * @brief This function finds the CFP in
1124 * region_cfp_table based on region and band parameter.
1125 *
1126 * @param region The region code
1127 * @param band The band
1128 * @param cfp_no A pointer to CFP number
1129 * @return A pointer to CFP
1130 */
1131struct chan_freq_power *libertas_get_region_cfp_table(u8 region, u8 band, int *cfp_no)
1132{
1133 int i, end;
1134
1135 ENTER();
1136
1137 end = sizeof(region_cfp_table)/sizeof(struct region_cfp_table);
1138
1139 for (i = 0; i < end ; i++) {
1140 lbs_pr_debug(1, "region_cfp_table[i].region=%d\n",
1141 region_cfp_table[i].region);
1142 if (region_cfp_table[i].region == region) {
1143 *cfp_no = region_cfp_table[i].cfp_no_BG;
1144 LEAVE();
1145 return region_cfp_table[i].cfp_BG;
1146 }
1147 }
1148
1149 LEAVE();
1150 return NULL;
1151}
1152
1153int libertas_set_regiontable(wlan_private * priv, u8 region, u8 band)
1154{
1155 wlan_adapter *adapter = priv->adapter;
1156 int i = 0;
1157
1158 struct chan_freq_power *cfp;
1159 int cfp_no;
1160
1161 ENTER();
1162
1163 memset(adapter->region_channel, 0, sizeof(adapter->region_channel));
1164
1165 {
1166 cfp = libertas_get_region_cfp_table(region, band, &cfp_no);
1167 if (cfp != NULL) {
1168 adapter->region_channel[i].nrcfp = cfp_no;
1169 adapter->region_channel[i].CFP = cfp;
1170 } else {
1171 lbs_pr_debug(1, "wrong region code %#x in band B-G\n",
1172 region);
1173 return -1;
1174 }
1175 adapter->region_channel[i].valid = 1;
1176 adapter->region_channel[i].region = region;
1177 adapter->region_channel[i].band = band;
1178 i++;
1179 }
1180 LEAVE();
1181 return 0;
1182}
1183
1184/**
1185 * @brief This function handles the interrupt. it will change PS
1186 * state if applicable. it will wake up main_thread to handle
1187 * the interrupt event as well.
1188 *
1189 * @param dev A pointer to net_device structure
1190 * @return n/a
1191 */
1192void libertas_interrupt(struct net_device *dev)
1193{
1194 wlan_private *priv = dev->priv;
1195
1196 ENTER();
1197
1198 lbs_pr_debug(1, "libertas_interrupt: intcounter=%d\n",
1199 priv->adapter->intcounter);
1200
1201 priv->adapter->intcounter++;
1202
1203 if (priv->adapter->psstate == PS_STATE_SLEEP) {
1204 priv->adapter->psstate = PS_STATE_AWAKE;
1205 netif_wake_queue(dev);
1206 }
1207
1208 wake_up_interruptible(&priv->mainthread.waitq);
1209
1210 LEAVE();
1211}
1212
1213static int wlan_init_module(void)
1214{
1215 int ret = 0;
1216
1217 ENTER();
1218
1219 if (libertas_fw_name == NULL) {
1220 libertas_fw_name = default_fw_name;
1221 }
1222
1223 libertas_debugfs_init();
1224
1225 if (libertas_sbi_register()) {
1226 ret = -1;
1227 libertas_debugfs_remove();
1228 goto done;
1229 }
1230
1231done:
1232 LEAVE();
1233 return ret;
1234}
1235
1236static void wlan_cleanup_module(void)
1237{
1238 int i;
1239
1240 ENTER();
1241
1242 for (i = 0; i<libertas_found; i++) {
1243 wlan_private *priv = libertas_devs[i]->priv;
1244 reset_device(priv);
1245 }
1246
1247 libertas_sbi_unregister();
1248 libertas_debugfs_remove();
1249
1250 LEAVE();
1251}
1252
1253module_init(wlan_init_module);
1254module_exit(wlan_cleanup_module);
1255
1256MODULE_DESCRIPTION("M-WLAN Driver");
1257MODULE_AUTHOR("Marvell International Ltd.");
1258MODULE_LICENSE("GPL");
Clone of davem's net-next-2.6 tree