summaryrefslogtreecommitdiffstats
path: root/drivers/net/wireless/libertas/11d.c
blob: ba4cbcb5911359ed9f89e4ab9631b756005deec1 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
/**
  * This file contains functions for 802.11D.
  */
#include <linux/ctype.h>
#include <linux/kernel.h>
#include <linux/wireless.h>

#include "host.h"
#include "decl.h"
#include "11d.h"
#include "dev.h"
#include "wext.h"

#define TX_PWR_DEFAULT	10

static struct region_code_mapping region_code_mapping[] = {
	{"US ", 0x10},		/* US FCC      */
	{"CA ", 0x10},		/* IC Canada   */
	{"SG ", 0x10},		/* Singapore   */
	{"EU ", 0x30},		/* ETSI        */
	{"AU ", 0x30},		/* Australia   */
	{"KR ", 0x30},		/* Republic Of Korea */
	{"ES ", 0x31},		/* Spain       */
	{"FR ", 0x32},		/* France      */
	{"JP ", 0x40},		/* Japan       */
};

/* Following 2 structure defines the supported channels */
static struct chan_freq_power channel_freq_power_UN_BG[] = {
	{1, 2412, TX_PWR_DEFAULT},
	{2, 2417, TX_PWR_DEFAULT},
	{3, 2422, TX_PWR_DEFAULT},
	{4, 2427, TX_PWR_DEFAULT},
	{5, 2432, TX_PWR_DEFAULT},
	{6, 2437, TX_PWR_DEFAULT},
	{7, 2442, TX_PWR_DEFAULT},
	{8, 2447, TX_PWR_DEFAULT},
	{9, 2452, TX_PWR_DEFAULT},
	{10, 2457, TX_PWR_DEFAULT},
	{11, 2462, TX_PWR_DEFAULT},
	{12, 2467, TX_PWR_DEFAULT},
	{13, 2472, TX_PWR_DEFAULT},
	{14, 2484, TX_PWR_DEFAULT}
};

static u8 wlan_region_2_code(u8 * region)
{
	u8 i;
	u8 size = sizeof(region_code_mapping)/
		  sizeof(struct region_code_mapping);

	for (i = 0; region[i] && i < COUNTRY_CODE_LEN; i++)
		region[i] = toupper(region[i]);

	for (i = 0; i < size; i++) {
		if (!memcmp(region, region_code_mapping[i].region,
			    COUNTRY_CODE_LEN))
			return (region_code_mapping[i].code);
	}

	/* default is US */
	return (region_code_mapping[0].code);
}

static u8 *wlan_code_2_region(u8 code)
{
	u8 i;
	u8 size = sizeof(region_code_mapping)
		  / sizeof(struct region_code_mapping);
	for (i = 0; i < size; i++) {
		if (region_code_mapping[i].code == code)
			return (region_code_mapping[i].region);
	}
	/* default is US */
	return (region_code_mapping[0].region);
}

/**
 *  @brief This function finds the nrchan-th chan after the firstchan
 *  @param band       band
 *  @param firstchan  first channel number
 *  @param nrchan   number of channels
 *  @return 	      the nrchan-th chan number
*/
static u8 wlan_get_chan_11d(u8 band, u8 firstchan, u8 nrchan, u8 * chan)
/*find the nrchan-th chan after the firstchan*/
{
	u8 i;
	struct chan_freq_power *cfp;
	u8 cfp_no;

	cfp = channel_freq_power_UN_BG;
	cfp_no = sizeof(channel_freq_power_UN_BG) /
	    sizeof(struct chan_freq_power);

	for (i = 0; i < cfp_no; i++) {
		if ((cfp + i)->channel == firstchan) {
			lbs_deb_11d("firstchan found\n");
			break;
		}
	}

	if (i < cfp_no) {
		/*if beyond the boundary */
		if (i + nrchan < cfp_no) {
			*chan = (cfp + i + nrchan)->channel;
			return 1;
		}
	}

	return 0;
}

/**
 *  @brief This function Checks if chan txpwr is learned from AP/IBSS
 *  @param chan                 chan number
 *  @param parsed_region_chan   pointer to parsed_region_chan_11d
 *  @return 	                TRUE; FALSE
*/
static u8 wlan_channel_known_11d(u8 chan,
			  struct parsed_region_chan_11d * parsed_region_chan)
{
	struct chan_power_11d *chanpwr = parsed_region_chan->chanpwr;
	u8 nr_chan = parsed_region_chan->nr_chan;
	u8 i = 0;

	lbs_dbg_hex("11D:parsed_region_chan:", (char *)chanpwr,
		sizeof(struct chan_power_11d) * nr_chan);

	for (i = 0; i < nr_chan; i++) {
		if (chan == chanpwr[i].chan) {
			lbs_deb_11d("11D: Found Chan:%d\n", chan);
			return 1;
		}
	}

	lbs_deb_11d("11D: Not Find Chan:%d\n", chan);
	return 0;
}

u32 libertas_chan_2_freq(u8 chan, u8 band)
{
	struct chan_freq_power *cf;
	u16 cnt;
	u16 i;
	u32 freq = 0;

	cf = channel_freq_power_UN_BG;
	cnt =
	    sizeof(channel_freq_power_UN_BG) /
	    sizeof(struct chan_freq_power);

	for (i = 0; i < cnt; i++) {
		if (chan == cf[i].channel)
			freq = cf[i].freq;
	}

	return freq;
}

static int generate_domain_info_11d(struct parsed_region_chan_11d
				  *parsed_region_chan,
				  struct wlan_802_11d_domain_reg * domaininfo)
{
	u8 nr_subband = 0;

	u8 nr_chan = parsed_region_chan->nr_chan;
	u8 nr_parsedchan = 0;

	u8 firstchan = 0, nextchan = 0, maxpwr = 0;

	u8 i, flag = 0;

	memcpy(domaininfo->countrycode, parsed_region_chan->countrycode,
	       COUNTRY_CODE_LEN);

	lbs_deb_11d("11D:nrchan=%d\n", nr_chan);
	lbs_dbg_hex("11D:parsed_region_chan:", (char *)parsed_region_chan,
		sizeof(struct parsed_region_chan_11d));

	for (i = 0; i < nr_chan; i++) {
		if (!flag) {
			flag = 1;
			nextchan = firstchan =
			    parsed_region_chan->chanpwr[i].chan;
			maxpwr = parsed_region_chan->chanpwr[i].pwr;
			nr_parsedchan = 1;
			continue;
		}

		if (parsed_region_chan->chanpwr[i].chan == nextchan + 1 &&
		    parsed_region_chan->chanpwr[i].pwr == maxpwr) {
			nextchan++;
			nr_parsedchan++;
		} else {
			domaininfo->subband[nr_subband].firstchan = firstchan;
			domaininfo->subband[nr_subband].nrchan =
			    nr_parsedchan;
			domaininfo->subband[nr_subband].maxtxpwr = maxpwr;
			nr_subband++;
			nextchan = firstchan =
			    parsed_region_chan->chanpwr[i].chan;
			maxpwr = parsed_region_chan->chanpwr[i].pwr;
		}
	}

	if (flag) {
		domaininfo->subband[nr_subband].firstchan = firstchan;
		domaininfo->subband[nr_subband].nrchan = nr_parsedchan;
		domaininfo->subband[nr_subband].maxtxpwr = maxpwr;
		nr_subband++;
	}
	domaininfo->nr_subband = nr_subband;

	lbs_deb_11d("nr_subband=%x\n", domaininfo->nr_subband);
	lbs_dbg_hex("11D:domaininfo:", (char *)domaininfo,
		COUNTRY_CODE_LEN + 1 +
		sizeof(struct ieeetypes_subbandset) * nr_subband);
	return 0;
}

/**
 *  @brief This function generates parsed_region_chan from Domain Info learned from AP/IBSS
 *  @param region_chan          pointer to struct region_channel
 *  @param *parsed_region_chan  pointer to parsed_region_chan_11d
 *  @return 	                N/A
*/
static void wlan_generate_parsed_region_chan_11d(struct region_channel * region_chan,
					  struct parsed_region_chan_11d *
					  parsed_region_chan)
{
	u8 i;
	struct chan_freq_power *cfp;

	if (region_chan == NULL) {
		lbs_deb_11d("11D: region_chan is NULL\n");
		return;
	}

	cfp = region_chan->CFP;
	if (cfp == NULL) {
		lbs_deb_11d("11D: cfp equal NULL \n");
		return;
	}

	parsed_region_chan->band = region_chan->band;
	parsed_region_chan->region = region_chan->region;
	memcpy(parsed_region_chan->countrycode,
	       wlan_code_2_region(region_chan->region), COUNTRY_CODE_LEN);

	lbs_deb_11d("11D: region[0x%x] band[%d]\n", parsed_region_chan->region,
	       parsed_region_chan->band);

	for (i = 0; i < region_chan->nrcfp; i++, cfp++) {
		parsed_region_chan->chanpwr[i].chan = cfp->channel;
		parsed_region_chan->chanpwr[i].pwr = cfp->maxtxpower;
		lbs_deb_11d("11D: Chan[%d] Pwr[%d]\n",
		       parsed_region_chan->chanpwr[i].chan,
		       parsed_region_chan->chanpwr[i].pwr);
	}
	parsed_region_chan->nr_chan = region_chan->nrcfp;

	lbs_deb_11d("11D: nrchan[%d]\n", parsed_region_chan->nr_chan);

	return;
}

/**
 *  @brief generate parsed_region_chan from Domain Info learned from AP/IBSS
 *  @param region               region ID
 *  @param band                 band
 *  @param chan                 chan
 *  @return 	                TRUE;FALSE
*/
static u8 wlan_region_chan_supported_11d(u8 region, u8 band, u8 chan)
{
	struct chan_freq_power *cfp;
	int cfp_no;
	u8 idx;
	int ret = 0;

	lbs_deb_enter(LBS_DEB_11D);

	cfp = libertas_get_region_cfp_table(region, band, &cfp_no);
	if (cfp == NULL)
		return 0;

	for (idx = 0; idx < cfp_no; idx++) {
		if (chan == (cfp + idx)->channel) {
			/* If Mrvl Chip Supported? */
			if ((cfp + idx)->unsupported) {
				ret = 0;
			} else {
				ret = 1;
			}
			goto done;
		}
	}

	/*chan is not in the region table */

done:
	lbs_deb_leave_args(LBS_DEB_11D, "ret %d", ret);
	return ret;
}

/**
 *  @brief This function checks if chan txpwr is learned from AP/IBSS
 *  @param chan                 chan number
 *  @param parsed_region_chan   pointer to parsed_region_chan_11d
 *  @return 	                0
*/
static int parse_domain_info_11d(struct ieeetypes_countryinfofullset*
				 countryinfo,
				 u8 band,
				 struct parsed_region_chan_11d *
				 parsed_region_chan)
{
	u8 nr_subband, nrchan;
	u8 lastchan, firstchan;
	u8 region;
	u8 curchan = 0;

	u8 idx = 0;		/*chan index in parsed_region_chan */

	u8 j, i;

	lbs_deb_enter(LBS_DEB_11D);

	/*validation Rules:
	   1. valid region Code
	   2. First Chan increment
	   3. channel range no overlap
	   4. channel is valid?
	   5. channel is supported by region?
	   6. Others
	 */

	lbs_dbg_hex("CountryInfo:", (u8 *) countryinfo, 30);

	if ((*(countryinfo->countrycode)) == 0
	    || (countryinfo->len <= COUNTRY_CODE_LEN)) {
		/* No region Info or Wrong region info: treat as No 11D info */
		goto done;
	}

	/*Step1: check region_code */
	parsed_region_chan->region = region =
	    wlan_region_2_code(countryinfo->countrycode);

	lbs_deb_11d("regioncode=%x\n", (u8) parsed_region_chan->region);
	lbs_dbg_hex("CountryCode:", (char *)countryinfo->countrycode,
		COUNTRY_CODE_LEN);

	parsed_region_chan->band = band;

	memcpy(parsed_region_chan->countrycode, countryinfo->countrycode,
	       COUNTRY_CODE_LEN);

	nr_subband = (countryinfo->len - COUNTRY_CODE_LEN) /
	    sizeof(struct ieeetypes_subbandset);

	for (j = 0, lastchan = 0; j < nr_subband; j++) {

		if (countryinfo->subband[j].firstchan <= lastchan) {
			/*Step2&3. Check First Chan Num increment and no overlap */
			lbs_deb_11d("11D: Chan[%d>%d] Overlap\n",
			       countryinfo->subband[j].firstchan, lastchan);
			continue;
		}

		firstchan = countryinfo->subband[j].firstchan;
		nrchan = countryinfo->subband[j].nrchan;

		for (i = 0; idx < MAX_NO_OF_CHAN && i < nrchan; i++) {
			/*step4: channel is supported? */

			if (!wlan_get_chan_11d(band, firstchan, i, &curchan)) {
				/* Chan is not found in UN table */
				lbs_deb_11d("chan is not supported: %d \n", i);
				break;
			}

			lastchan = curchan;

			if (wlan_region_chan_supported_11d
			    (region, band, curchan)) {
				/*step5: Check if curchan is supported by mrvl in region */
				parsed_region_chan->chanpwr[idx].chan = curchan;
				parsed_region_chan->chanpwr[idx].pwr =
				    countryinfo->subband[j].maxtxpwr;
				idx++;
			} else {
				/*not supported and ignore the chan */
				lbs_deb_11d(
				       "11D:i[%d] chan[%d] unsupported in region[%x] band[%d]\n",
				       i, curchan, region, band);
			}
		}

		/*Step6: Add other checking if any */

	}

	parsed_region_chan->nr_chan = idx;

	lbs_deb_11d("nrchan=%x\n", parsed_region_chan->nr_chan);
	lbs_dbg_hex("11D:parsed_region_chan:", (u8 *) parsed_region_chan,
		2 + COUNTRY_CODE_LEN + sizeof(struct parsed_region_chan_11d) * idx);

done:
	lbs_deb_enter(LBS_DEB_11D);
	return 0;
}

/**
 *  @brief This function calculates the scan type for channels
 *  @param chan                 chan number
 *  @param parsed_region_chan   pointer to parsed_region_chan_11d
 *  @return 	                PASSIVE if chan is unknown; ACTIVE if chan is known
*/
u8 libertas_get_scan_type_11d(u8 chan,
			  struct parsed_region_chan_11d * parsed_region_chan)
{
	u8 scan_type = CMD_SCAN_TYPE_PASSIVE;

	lbs_deb_enter(LBS_DEB_11D);

	if (wlan_channel_known_11d(chan, parsed_region_chan)) {
		lbs_deb_11d("11D: Found and do Active Scan\n");
		scan_type = CMD_SCAN_TYPE_ACTIVE;
	} else {
		lbs_deb_11d("11D: Not Find and do Passive Scan\n");
	}

	lbs_deb_leave_args(LBS_DEB_11D, "ret scan_type %d", scan_type);
	return scan_type;

}

void libertas_init_11d(wlan_private * priv)
{
	priv->adapter->enable11d = 0;
	memset(&(priv->adapter->parsed_region_chan), 0,
	       sizeof(struct parsed_region_chan_11d));
	return;
}

/**
 *  @brief This function sets DOMAIN INFO to FW
 *  @param priv       pointer to wlan_private
 *  @return 	      0; -1
*/
static int set_domain_info_11d(wlan_private * priv)
{
	int ret;

	if (!priv->adapter->enable11d) {
		lbs_deb_11d("11D: dnld domain Info with 11d disabled\n");
		return 0;
	}

	ret = libertas_prepare_and_send_command(priv, CMD_802_11D_DOMAIN_INFO,
				    CMD_ACT_SET,
				    CMD_OPTION_WAITFORRSP, 0, NULL);
	if (ret)
		lbs_deb_11d("11D: Fail to dnld domain Info\n");

	return ret;
}

/**
 *  @brief This function setups scan channels
 *  @param priv       pointer to wlan_private
 *  @param band       band
 *  @return 	      0
*/
int libertas_set_universaltable(wlan_private * priv, u8 band)
{
	wlan_adapter *adapter = priv->adapter;
	u16 size = sizeof(struct chan_freq_power);
	u16 i = 0;

	memset(adapter->universal_channel, 0,
	       sizeof(adapter->universal_channel));

	adapter->universal_channel[i].nrcfp =
	    sizeof(channel_freq_power_UN_BG) / size;
	lbs_deb_11d("11D: BG-band nrcfp=%d\n",
	       adapter->universal_channel[i].nrcfp);

	adapter->universal_channel[i].CFP = channel_freq_power_UN_BG;
	adapter->universal_channel[i].valid = 1;
	adapter->universal_channel[i].region = UNIVERSAL_REGION_CODE;
	adapter->universal_channel[i].band = band;
	i++;

	return 0;
}

/**
 *  @brief This function implements command CMD_802_11D_DOMAIN_INFO
 *  @param priv       pointer to wlan_private
 *  @param cmd        pointer to cmd buffer
 *  @param cmdno      cmd ID
 *  @param cmdOption  cmd action
 *  @return 	      0
*/
int libertas_cmd_802_11d_domain_info(wlan_private * priv,
				 struct cmd_ds_command *cmd, u16 cmdno,
				 u16 cmdoption)
{
	struct cmd_ds_802_11d_domain_info *pdomaininfo =
	    &cmd->params.domaininfo;
	struct mrvlietypes_domainparamset *domain = &pdomaininfo->domain;
	wlan_adapter *adapter = priv->adapter;
	u8 nr_subband = adapter->domainreg.nr_subband;

	lbs_deb_enter(LBS_DEB_11D);

	lbs_deb_11d("nr_subband=%x\n", nr_subband);

	cmd->command = cpu_to_le16(cmdno);
	pdomaininfo->action = cpu_to_le16(cmdoption);
	if (cmdoption == CMD_ACT_GET) {
		cmd->size =
		    cpu_to_le16(sizeof(pdomaininfo->action) + S_DS_GEN);
		lbs_dbg_hex("11D: 802_11D_DOMAIN_INFO:", (u8 *) cmd,
			(int)(cmd->size));
		goto done;
	}

	domain->header.type = cpu_to_le16(TLV_TYPE_DOMAIN);
	memcpy(domain->countrycode, adapter->domainreg.countrycode,
	       sizeof(domain->countrycode));

	domain->header.len =
	    cpu_to_le16(nr_subband * sizeof(struct ieeetypes_subbandset) +
			     sizeof(domain->countrycode));

	if (nr_subband) {
		memcpy(domain->subband, adapter->domainreg.subband,
		       nr_subband * sizeof(struct ieeetypes_subbandset));

		cmd->size = cpu_to_le16(sizeof(pdomaininfo->action) +
					     domain->header.len +
					     sizeof(struct mrvlietypesheader) +
					     S_DS_GEN);
	} else {
		cmd->size =
		    cpu_to_le16(sizeof(pdomaininfo->action) + S_DS_GEN);
	}

	lbs_dbg_hex("11D:802_11D_DOMAIN_INFO:", (u8 *) cmd, le16_to_cpu(cmd->size));

done:
	lbs_deb_enter(LBS_DEB_11D);
	return 0;
}

/**
 *  @brief This function parses countryinfo from AP and download country info to FW
 *  @param priv    pointer to wlan_private
 *  @param resp    pointer to command response buffer
 *  @return 	   0; -1
 */
int libertas_ret_802_11d_domain_info(wlan_private * priv,
				 struct cmd_ds_command *resp)
{
	struct cmd_ds_802_11d_domain_info *domaininfo = &resp->params.domaininforesp;
	struct mrvlietypes_domainparamset *domain = &domaininfo->domain;
	u16 action = le16_to_cpu(domaininfo->action);
	s16 ret = 0;
	u8 nr_subband = 0;

	lbs_deb_enter(LBS_DEB_11D);

	lbs_dbg_hex("11D DOMAIN Info Rsp Data:", (u8 *) resp,
		(int)le16_to_cpu(resp->size));

	nr_subband = (le16_to_cpu(domain->header.len) - COUNTRY_CODE_LEN) /
		      sizeof(struct ieeetypes_subbandset);

	lbs_deb_11d("11D Domain Info Resp: nr_subband=%d\n", nr_subband);

	if (nr_subband > MRVDRV_MAX_SUBBAND_802_11D) {
		lbs_deb_11d("Invalid Numrer of Subband returned!!\n");
		return -1;
	}

	switch (action) {
	case CMD_ACT_SET:	/*Proc Set action */
		break;

	case CMD_ACT_GET:
		break;
	default:
		lbs_deb_11d("Invalid action:%d\n", domaininfo->action);
		ret = -1;
		break;
	}

	lbs_deb_leave_args(LBS_DEB_11D, "ret %d", ret);
	return ret;
}

/**
 *  @brief This function parses countryinfo from AP and download country info to FW
 *  @param priv    pointer to wlan_private
 *  @return 	   0; -1
 */
int libertas_parse_dnld_countryinfo_11d(wlan_private * priv,
                                        struct bss_descriptor * bss)
{
	int ret;
	wlan_adapter *adapter = priv->adapter;

	lbs_deb_enter(LBS_DEB_11D);
	if (priv->adapter->enable11d) {
		memset(&adapter->parsed_region_chan, 0,
		       sizeof(struct parsed_region_chan_11d));
		ret = parse_domain_info_11d(&bss->countryinfo, 0,
					       &adapter->parsed_region_chan);

		if (ret == -1) {
			lbs_deb_11d("11D: Err Parse domain_info from AP..\n");
			goto done;
		}

		memset(&adapter->domainreg, 0,
		       sizeof(struct wlan_802_11d_domain_reg));
		generate_domain_info_11d(&adapter->parsed_region_chan,
				      &adapter->domainreg);

		ret = set_domain_info_11d(priv);

		if (ret) {
			lbs_deb_11d("11D: Err set domainInfo to FW\n");
			goto done;
		}
	}
	ret = 0;

done:
	lbs_deb_leave_args(LBS_DEB_11D, "ret %d", ret);
	return ret;
}

/**
 *  @brief This function generates 11D info from user specified regioncode and download to FW
 *  @param priv    pointer to wlan_private
 *  @return 	   0; -1
 */
int libertas_create_dnld_countryinfo_11d(wlan_private * priv)
{
	int ret;
	wlan_adapter *adapter = priv->adapter;
	struct region_channel *region_chan;
	u8 j;

	lbs_deb_enter(LBS_DEB_11D);
	lbs_deb_11d("11D:curbssparams.band[%d]\n", adapter->curbssparams.band);

	if (priv->adapter->enable11d) {
		/* update parsed_region_chan_11; dnld domaininf to FW */

		for (j = 0; j < sizeof(adapter->region_channel) /
		     sizeof(adapter->region_channel[0]); j++) {
			region_chan = &adapter->region_channel[j];

			lbs_deb_11d("11D:[%d] region_chan->band[%d]\n", j,
			       region_chan->band);

			if (!region_chan || !region_chan->valid
			    || !region_chan->CFP)
				continue;
			if (region_chan->band != adapter->curbssparams.band)
				continue;
			break;
		}

		if (j >= sizeof(adapter->region_channel) /
		    sizeof(adapter->region_channel[0])) {
			lbs_deb_11d("11D:region_chan not found. band[%d]\n",
			       adapter->curbssparams.band);
			ret = -1;
			goto done;
		}

		memset(&adapter->parsed_region_chan, 0,
		       sizeof(struct parsed_region_chan_11d));
		wlan_generate_parsed_region_chan_11d(region_chan,
						     &adapter->
						     parsed_region_chan);

		memset(&adapter->domainreg, 0,
		       sizeof(struct wlan_802_11d_domain_reg));
		generate_domain_info_11d(&adapter->parsed_region_chan,
					 &adapter->domainreg);

		ret = set_domain_info_11d(priv);

		if (ret) {
			lbs_deb_11d("11D: Err set domainInfo to FW\n");
			goto done;
		}

	}
	ret = 0;

done:
	lbs_deb_leave_args(LBS_DEB_11D, "ret %d", ret);
	return ret;
}