2 * This file contains functions for 802.11D.
4 #include <linux/ctype.h>
5 #include <linux/kernel.h>
6 #include <linux/wireless.h>
14 #define TX_PWR_DEFAULT 10
16 static struct region_code_mapping region_code_mapping
[] = {
17 {"US ", 0x10}, /* US FCC */
18 {"CA ", 0x10}, /* IC Canada */
19 {"SG ", 0x10}, /* Singapore */
20 {"EU ", 0x30}, /* ETSI */
21 {"AU ", 0x30}, /* Australia */
22 {"KR ", 0x30}, /* Republic Of Korea */
23 {"ES ", 0x31}, /* Spain */
24 {"FR ", 0x32}, /* France */
25 {"JP ", 0x40}, /* Japan */
28 /* Following 2 structure defines the supported channels */
29 static struct chan_freq_power channel_freq_power_UN_BG
[] = {
30 {1, 2412, TX_PWR_DEFAULT
},
31 {2, 2417, TX_PWR_DEFAULT
},
32 {3, 2422, TX_PWR_DEFAULT
},
33 {4, 2427, TX_PWR_DEFAULT
},
34 {5, 2432, TX_PWR_DEFAULT
},
35 {6, 2437, TX_PWR_DEFAULT
},
36 {7, 2442, TX_PWR_DEFAULT
},
37 {8, 2447, TX_PWR_DEFAULT
},
38 {9, 2452, TX_PWR_DEFAULT
},
39 {10, 2457, TX_PWR_DEFAULT
},
40 {11, 2462, TX_PWR_DEFAULT
},
41 {12, 2467, TX_PWR_DEFAULT
},
42 {13, 2472, TX_PWR_DEFAULT
},
43 {14, 2484, TX_PWR_DEFAULT
}
46 static u8
wlan_region_2_code(u8
* region
)
49 u8 size
= sizeof(region_code_mapping
)/
50 sizeof(struct region_code_mapping
);
52 for (i
= 0; region
[i
] && i
< COUNTRY_CODE_LEN
; i
++)
53 region
[i
] = toupper(region
[i
]);
55 for (i
= 0; i
< size
; i
++) {
56 if (!memcmp(region
, region_code_mapping
[i
].region
,
58 return (region_code_mapping
[i
].code
);
62 return (region_code_mapping
[0].code
);
65 static u8
*wlan_code_2_region(u8 code
)
68 u8 size
= sizeof(region_code_mapping
)
69 / sizeof(struct region_code_mapping
);
70 for (i
= 0; i
< size
; i
++) {
71 if (region_code_mapping
[i
].code
== code
)
72 return (region_code_mapping
[i
].region
);
75 return (region_code_mapping
[0].region
);
79 * @brief This function finds the nrchan-th chan after the firstchan
81 * @param firstchan first channel number
82 * @param nrchan number of channels
83 * @return the nrchan-th chan number
85 static u8
wlan_get_chan_11d(u8 band
, u8 firstchan
, u8 nrchan
, u8
* chan
)
86 /*find the nrchan-th chan after the firstchan*/
89 struct chan_freq_power
*cfp
;
92 cfp
= channel_freq_power_UN_BG
;
93 cfp_no
= sizeof(channel_freq_power_UN_BG
) /
94 sizeof(struct chan_freq_power
);
96 for (i
= 0; i
< cfp_no
; i
++) {
97 if ((cfp
+ i
)->channel
== firstchan
) {
98 lbs_deb_11d("firstchan found\n");
104 /*if beyond the boundary */
105 if (i
+ nrchan
< cfp_no
) {
106 *chan
= (cfp
+ i
+ nrchan
)->channel
;
115 * @brief This function Checks if chan txpwr is learned from AP/IBSS
116 * @param chan chan number
117 * @param parsed_region_chan pointer to parsed_region_chan_11d
118 * @return TRUE; FALSE
120 static u8
wlan_channel_known_11d(u8 chan
,
121 struct parsed_region_chan_11d
* parsed_region_chan
)
123 struct chan_power_11d
*chanpwr
= parsed_region_chan
->chanpwr
;
124 u8 nr_chan
= parsed_region_chan
->nr_chan
;
127 lbs_deb_hex(LBS_DEB_11D
, "parsed_region_chan", (char *)chanpwr
,
128 sizeof(struct chan_power_11d
) * nr_chan
);
130 for (i
= 0; i
< nr_chan
; i
++) {
131 if (chan
== chanpwr
[i
].chan
) {
132 lbs_deb_11d("found chan %d\n", chan
);
137 lbs_deb_11d("chan %d not found\n", chan
);
141 u32
libertas_chan_2_freq(u8 chan
, u8 band
)
143 struct chan_freq_power
*cf
;
148 cf
= channel_freq_power_UN_BG
;
150 sizeof(channel_freq_power_UN_BG
) /
151 sizeof(struct chan_freq_power
);
153 for (i
= 0; i
< cnt
; i
++) {
154 if (chan
== cf
[i
].channel
)
161 static int generate_domain_info_11d(struct parsed_region_chan_11d
163 struct wlan_802_11d_domain_reg
* domaininfo
)
167 u8 nr_chan
= parsed_region_chan
->nr_chan
;
168 u8 nr_parsedchan
= 0;
170 u8 firstchan
= 0, nextchan
= 0, maxpwr
= 0;
174 memcpy(domaininfo
->countrycode
, parsed_region_chan
->countrycode
,
177 lbs_deb_11d("nrchan %d\n", nr_chan
);
178 lbs_deb_hex(LBS_DEB_11D
, "parsed_region_chan", (char *)parsed_region_chan
,
179 sizeof(struct parsed_region_chan_11d
));
181 for (i
= 0; i
< nr_chan
; i
++) {
184 nextchan
= firstchan
=
185 parsed_region_chan
->chanpwr
[i
].chan
;
186 maxpwr
= parsed_region_chan
->chanpwr
[i
].pwr
;
191 if (parsed_region_chan
->chanpwr
[i
].chan
== nextchan
+ 1 &&
192 parsed_region_chan
->chanpwr
[i
].pwr
== maxpwr
) {
196 domaininfo
->subband
[nr_subband
].firstchan
= firstchan
;
197 domaininfo
->subband
[nr_subband
].nrchan
=
199 domaininfo
->subband
[nr_subband
].maxtxpwr
= maxpwr
;
201 nextchan
= firstchan
=
202 parsed_region_chan
->chanpwr
[i
].chan
;
203 maxpwr
= parsed_region_chan
->chanpwr
[i
].pwr
;
208 domaininfo
->subband
[nr_subband
].firstchan
= firstchan
;
209 domaininfo
->subband
[nr_subband
].nrchan
= nr_parsedchan
;
210 domaininfo
->subband
[nr_subband
].maxtxpwr
= maxpwr
;
213 domaininfo
->nr_subband
= nr_subband
;
215 lbs_deb_11d("nr_subband=%x\n", domaininfo
->nr_subband
);
216 lbs_deb_hex(LBS_DEB_11D
, "domaininfo", (char *)domaininfo
,
217 COUNTRY_CODE_LEN
+ 1 +
218 sizeof(struct ieeetypes_subbandset
) * nr_subband
);
223 * @brief This function generates parsed_region_chan from Domain Info learned from AP/IBSS
224 * @param region_chan pointer to struct region_channel
225 * @param *parsed_region_chan pointer to parsed_region_chan_11d
228 static void wlan_generate_parsed_region_chan_11d(struct region_channel
* region_chan
,
229 struct parsed_region_chan_11d
*
233 struct chan_freq_power
*cfp
;
235 if (region_chan
== NULL
) {
236 lbs_deb_11d("region_chan is NULL\n");
240 cfp
= region_chan
->CFP
;
242 lbs_deb_11d("cfp is NULL \n");
246 parsed_region_chan
->band
= region_chan
->band
;
247 parsed_region_chan
->region
= region_chan
->region
;
248 memcpy(parsed_region_chan
->countrycode
,
249 wlan_code_2_region(region_chan
->region
), COUNTRY_CODE_LEN
);
251 lbs_deb_11d("region 0x%x, band %d\n", parsed_region_chan
->region
,
252 parsed_region_chan
->band
);
254 for (i
= 0; i
< region_chan
->nrcfp
; i
++, cfp
++) {
255 parsed_region_chan
->chanpwr
[i
].chan
= cfp
->channel
;
256 parsed_region_chan
->chanpwr
[i
].pwr
= cfp
->maxtxpower
;
257 lbs_deb_11d("chan %d, pwr %d\n",
258 parsed_region_chan
->chanpwr
[i
].chan
,
259 parsed_region_chan
->chanpwr
[i
].pwr
);
261 parsed_region_chan
->nr_chan
= region_chan
->nrcfp
;
263 lbs_deb_11d("nrchan %d\n", parsed_region_chan
->nr_chan
);
269 * @brief generate parsed_region_chan from Domain Info learned from AP/IBSS
270 * @param region region ID
275 static u8
wlan_region_chan_supported_11d(u8 region
, u8 band
, u8 chan
)
277 struct chan_freq_power
*cfp
;
282 lbs_deb_enter(LBS_DEB_11D
);
284 cfp
= libertas_get_region_cfp_table(region
, band
, &cfp_no
);
288 for (idx
= 0; idx
< cfp_no
; idx
++) {
289 if (chan
== (cfp
+ idx
)->channel
) {
290 /* If Mrvl Chip Supported? */
291 if ((cfp
+ idx
)->unsupported
) {
300 /*chan is not in the region table */
303 lbs_deb_leave_args(LBS_DEB_11D
, "ret %d", ret
);
308 * @brief This function checks if chan txpwr is learned from AP/IBSS
309 * @param chan chan number
310 * @param parsed_region_chan pointer to parsed_region_chan_11d
313 static int parse_domain_info_11d(struct ieeetypes_countryinfofullset
*
316 struct parsed_region_chan_11d
*
319 u8 nr_subband
, nrchan
;
320 u8 lastchan
, firstchan
;
324 u8 idx
= 0; /*chan index in parsed_region_chan */
328 lbs_deb_enter(LBS_DEB_11D
);
332 2. First Chan increment
333 3. channel range no overlap
335 5. channel is supported by region?
339 lbs_deb_hex(LBS_DEB_11D
, "countryinfo", (u8
*) countryinfo
, 30);
341 if ((*(countryinfo
->countrycode
)) == 0
342 || (countryinfo
->len
<= COUNTRY_CODE_LEN
)) {
343 /* No region Info or Wrong region info: treat as No 11D info */
347 /*Step1: check region_code */
348 parsed_region_chan
->region
= region
=
349 wlan_region_2_code(countryinfo
->countrycode
);
351 lbs_deb_11d("regioncode=%x\n", (u8
) parsed_region_chan
->region
);
352 lbs_deb_hex(LBS_DEB_11D
, "countrycode", (char *)countryinfo
->countrycode
,
355 parsed_region_chan
->band
= band
;
357 memcpy(parsed_region_chan
->countrycode
, countryinfo
->countrycode
,
360 nr_subband
= (countryinfo
->len
- COUNTRY_CODE_LEN
) /
361 sizeof(struct ieeetypes_subbandset
);
363 for (j
= 0, lastchan
= 0; j
< nr_subband
; j
++) {
365 if (countryinfo
->subband
[j
].firstchan
<= lastchan
) {
366 /*Step2&3. Check First Chan Num increment and no overlap */
367 lbs_deb_11d("chan %d>%d, overlap\n",
368 countryinfo
->subband
[j
].firstchan
, lastchan
);
372 firstchan
= countryinfo
->subband
[j
].firstchan
;
373 nrchan
= countryinfo
->subband
[j
].nrchan
;
375 for (i
= 0; idx
< MAX_NO_OF_CHAN
&& i
< nrchan
; i
++) {
376 /*step4: channel is supported? */
378 if (!wlan_get_chan_11d(band
, firstchan
, i
, &curchan
)) {
379 /* Chan is not found in UN table */
380 lbs_deb_11d("chan is not supported: %d \n", i
);
386 if (wlan_region_chan_supported_11d
387 (region
, band
, curchan
)) {
388 /*step5: Check if curchan is supported by mrvl in region */
389 parsed_region_chan
->chanpwr
[idx
].chan
= curchan
;
390 parsed_region_chan
->chanpwr
[idx
].pwr
=
391 countryinfo
->subband
[j
].maxtxpwr
;
394 /*not supported and ignore the chan */
396 "i %d, chan %d unsupported in region %x, band %d\n",
397 i
, curchan
, region
, band
);
401 /*Step6: Add other checking if any */
405 parsed_region_chan
->nr_chan
= idx
;
407 lbs_deb_11d("nrchan=%x\n", parsed_region_chan
->nr_chan
);
408 lbs_deb_hex(LBS_DEB_11D
, "parsed_region_chan", (u8
*) parsed_region_chan
,
409 2 + COUNTRY_CODE_LEN
+ sizeof(struct parsed_region_chan_11d
) * idx
);
412 lbs_deb_enter(LBS_DEB_11D
);
417 * @brief This function calculates the scan type for channels
418 * @param chan chan number
419 * @param parsed_region_chan pointer to parsed_region_chan_11d
420 * @return PASSIVE if chan is unknown; ACTIVE if chan is known
422 u8
libertas_get_scan_type_11d(u8 chan
,
423 struct parsed_region_chan_11d
* parsed_region_chan
)
425 u8 scan_type
= CMD_SCAN_TYPE_PASSIVE
;
427 lbs_deb_enter(LBS_DEB_11D
);
429 if (wlan_channel_known_11d(chan
, parsed_region_chan
)) {
430 lbs_deb_11d("found, do active scan\n");
431 scan_type
= CMD_SCAN_TYPE_ACTIVE
;
433 lbs_deb_11d("not found, do passive scan\n");
436 lbs_deb_leave_args(LBS_DEB_11D
, "ret scan_type %d", scan_type
);
441 void libertas_init_11d(wlan_private
* priv
)
443 priv
->adapter
->enable11d
= 0;
444 memset(&(priv
->adapter
->parsed_region_chan
), 0,
445 sizeof(struct parsed_region_chan_11d
));
450 * @brief This function sets DOMAIN INFO to FW
451 * @param priv pointer to wlan_private
454 static int set_domain_info_11d(wlan_private
* priv
)
458 if (!priv
->adapter
->enable11d
) {
459 lbs_deb_11d("dnld domain Info with 11d disabled\n");
463 ret
= libertas_prepare_and_send_command(priv
, CMD_802_11D_DOMAIN_INFO
,
465 CMD_OPTION_WAITFORRSP
, 0, NULL
);
467 lbs_deb_11d("fail to dnld domain info\n");
473 * @brief This function setups scan channels
474 * @param priv pointer to wlan_private
478 int libertas_set_universaltable(wlan_private
* priv
, u8 band
)
480 wlan_adapter
*adapter
= priv
->adapter
;
481 u16 size
= sizeof(struct chan_freq_power
);
484 memset(adapter
->universal_channel
, 0,
485 sizeof(adapter
->universal_channel
));
487 adapter
->universal_channel
[i
].nrcfp
=
488 sizeof(channel_freq_power_UN_BG
) / size
;
489 lbs_deb_11d("BG-band nrcfp %d\n",
490 adapter
->universal_channel
[i
].nrcfp
);
492 adapter
->universal_channel
[i
].CFP
= channel_freq_power_UN_BG
;
493 adapter
->universal_channel
[i
].valid
= 1;
494 adapter
->universal_channel
[i
].region
= UNIVERSAL_REGION_CODE
;
495 adapter
->universal_channel
[i
].band
= band
;
502 * @brief This function implements command CMD_802_11D_DOMAIN_INFO
503 * @param priv pointer to wlan_private
504 * @param cmd pointer to cmd buffer
505 * @param cmdno cmd ID
506 * @param cmdOption cmd action
509 int libertas_cmd_802_11d_domain_info(wlan_private
* priv
,
510 struct cmd_ds_command
*cmd
, u16 cmdno
,
513 struct cmd_ds_802_11d_domain_info
*pdomaininfo
=
514 &cmd
->params
.domaininfo
;
515 struct mrvlietypes_domainparamset
*domain
= &pdomaininfo
->domain
;
516 wlan_adapter
*adapter
= priv
->adapter
;
517 u8 nr_subband
= adapter
->domainreg
.nr_subband
;
519 lbs_deb_enter(LBS_DEB_11D
);
521 lbs_deb_11d("nr_subband=%x\n", nr_subband
);
523 cmd
->command
= cpu_to_le16(cmdno
);
524 pdomaininfo
->action
= cpu_to_le16(cmdoption
);
525 if (cmdoption
== CMD_ACT_GET
) {
527 cpu_to_le16(sizeof(pdomaininfo
->action
) + S_DS_GEN
);
528 lbs_deb_hex(LBS_DEB_11D
, "802_11D_DOMAIN_INFO", (u8
*) cmd
,
533 domain
->header
.type
= cpu_to_le16(TLV_TYPE_DOMAIN
);
534 memcpy(domain
->countrycode
, adapter
->domainreg
.countrycode
,
535 sizeof(domain
->countrycode
));
538 cpu_to_le16(nr_subband
* sizeof(struct ieeetypes_subbandset
) +
539 sizeof(domain
->countrycode
));
542 memcpy(domain
->subband
, adapter
->domainreg
.subband
,
543 nr_subband
* sizeof(struct ieeetypes_subbandset
));
545 cmd
->size
= cpu_to_le16(sizeof(pdomaininfo
->action
) +
546 le16_to_cpu(domain
->header
.len
) +
547 sizeof(struct mrvlietypesheader
) +
551 cpu_to_le16(sizeof(pdomaininfo
->action
) + S_DS_GEN
);
554 lbs_deb_hex(LBS_DEB_11D
, "802_11D_DOMAIN_INFO", (u8
*) cmd
, le16_to_cpu(cmd
->size
));
557 lbs_deb_enter(LBS_DEB_11D
);
562 * @brief This function parses countryinfo from AP and download country info to FW
563 * @param priv pointer to wlan_private
564 * @param resp pointer to command response buffer
567 int libertas_ret_802_11d_domain_info(wlan_private
* priv
,
568 struct cmd_ds_command
*resp
)
570 struct cmd_ds_802_11d_domain_info
*domaininfo
= &resp
->params
.domaininforesp
;
571 struct mrvlietypes_domainparamset
*domain
= &domaininfo
->domain
;
572 u16 action
= le16_to_cpu(domaininfo
->action
);
576 lbs_deb_enter(LBS_DEB_11D
);
578 lbs_deb_hex(LBS_DEB_11D
, "domain info resp", (u8
*) resp
,
579 (int)le16_to_cpu(resp
->size
));
581 nr_subband
= (le16_to_cpu(domain
->header
.len
) - COUNTRY_CODE_LEN
) /
582 sizeof(struct ieeetypes_subbandset
);
584 lbs_deb_11d("domain info resp: nr_subband %d\n", nr_subband
);
586 if (nr_subband
> MRVDRV_MAX_SUBBAND_802_11D
) {
587 lbs_deb_11d("Invalid Numrer of Subband returned!!\n");
592 case CMD_ACT_SET
: /*Proc Set action */
598 lbs_deb_11d("Invalid action:%d\n", domaininfo
->action
);
603 lbs_deb_leave_args(LBS_DEB_11D
, "ret %d", ret
);
608 * @brief This function parses countryinfo from AP and download country info to FW
609 * @param priv pointer to wlan_private
612 int libertas_parse_dnld_countryinfo_11d(wlan_private
* priv
,
613 struct bss_descriptor
* bss
)
616 wlan_adapter
*adapter
= priv
->adapter
;
618 lbs_deb_enter(LBS_DEB_11D
);
619 if (priv
->adapter
->enable11d
) {
620 memset(&adapter
->parsed_region_chan
, 0,
621 sizeof(struct parsed_region_chan_11d
));
622 ret
= parse_domain_info_11d(&bss
->countryinfo
, 0,
623 &adapter
->parsed_region_chan
);
626 lbs_deb_11d("error parsing domain_info from AP\n");
630 memset(&adapter
->domainreg
, 0,
631 sizeof(struct wlan_802_11d_domain_reg
));
632 generate_domain_info_11d(&adapter
->parsed_region_chan
,
633 &adapter
->domainreg
);
635 ret
= set_domain_info_11d(priv
);
638 lbs_deb_11d("error setting domain info\n");
645 lbs_deb_leave_args(LBS_DEB_11D
, "ret %d", ret
);
650 * @brief This function generates 11D info from user specified regioncode and download to FW
651 * @param priv pointer to wlan_private
654 int libertas_create_dnld_countryinfo_11d(wlan_private
* priv
)
657 wlan_adapter
*adapter
= priv
->adapter
;
658 struct region_channel
*region_chan
;
661 lbs_deb_enter(LBS_DEB_11D
);
662 lbs_deb_11d("curbssparams.band %d\n", adapter
->curbssparams
.band
);
664 if (priv
->adapter
->enable11d
) {
665 /* update parsed_region_chan_11; dnld domaininf to FW */
667 for (j
= 0; j
< sizeof(adapter
->region_channel
) /
668 sizeof(adapter
->region_channel
[0]); j
++) {
669 region_chan
= &adapter
->region_channel
[j
];
671 lbs_deb_11d("%d region_chan->band %d\n", j
,
674 if (!region_chan
|| !region_chan
->valid
675 || !region_chan
->CFP
)
677 if (region_chan
->band
!= adapter
->curbssparams
.band
)
682 if (j
>= sizeof(adapter
->region_channel
) /
683 sizeof(adapter
->region_channel
[0])) {
684 lbs_deb_11d("region_chan not found, band %d\n",
685 adapter
->curbssparams
.band
);
690 memset(&adapter
->parsed_region_chan
, 0,
691 sizeof(struct parsed_region_chan_11d
));
692 wlan_generate_parsed_region_chan_11d(region_chan
,
696 memset(&adapter
->domainreg
, 0,
697 sizeof(struct wlan_802_11d_domain_reg
));
698 generate_domain_info_11d(&adapter
->parsed_region_chan
,
699 &adapter
->domainreg
);
701 ret
= set_domain_info_11d(priv
);
704 lbs_deb_11d("error setting domain info\n");
712 lbs_deb_leave_args(LBS_DEB_11D
, "ret %d", ret
);