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fix noise/signal level display (fixes #20)
[openwrt.git] / target / linux / package / wlcompat / wlcompat.c
1 /*
2 * wlcompat.c
3 *
4 * Copyright (C) 2005 Mike Baker,
5 * Felix Fietkau <openwrt@nbd.name>
6 *
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License
9 * as published by the Free Software Foundation; either version 2
10 * of the License, or (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
20 *
21 * $Id$
22 */
23
24
25 #include <linux/config.h>
26 #include <linux/module.h>
27 #include <linux/init.h>
28 #include <linux/if_arp.h>
29 #include <asm/uaccess.h>
30 #include <linux/wireless.h>
31
32 #include <net/iw_handler.h>
33 #include <wlioctl.h>
34
35 static struct net_device *dev;
36 static unsigned short bss_force;
37 static struct iw_statistics wstats;
38 char buf[WLC_IOCTL_MAXLEN];
39
40 /* The frequency of each channel in MHz */
41 const long channel_frequency[] = {
42 2412, 2417, 2422, 2427, 2432, 2437, 2442,
43 2447, 2452, 2457, 2462, 2467, 2472, 2484
44 };
45 #define NUM_CHANNELS ( sizeof(channel_frequency) / sizeof(channel_frequency[0]) )
46
47 typedef struct internal_wsec_key {
48 uint8 index; // 0x00
49 uint8 unknown_1; // 0x01
50 uint8 type; // 0x02
51 uint8 unknown_2[7]; // 0x03
52 uint8 len; // 0x0a
53 uint8 pad[3];
54 char data[32]; // 0x0e
55 } wkey;
56
57
58 static int wlcompat_private_ioctl(struct net_device *dev,
59 struct iw_request_info *info,
60 union iwreq_data *wrqu,
61 char *extra);
62 #ifdef DEBUG
63 void print_buffer(int len, unsigned char *buf);
64 #endif
65
66 static int wl_ioctl(struct net_device *dev, int cmd, void *buf, int len)
67 {
68 mm_segment_t old_fs = get_fs();
69 struct ifreq ifr;
70 int ret;
71 wl_ioctl_t ioc;
72 ioc.cmd = cmd;
73 ioc.buf = buf;
74 ioc.len = len;
75 strncpy(ifr.ifr_name, dev->name, IFNAMSIZ);
76 ifr.ifr_data = (caddr_t) &ioc;
77 set_fs(KERNEL_DS);
78 ret = dev->do_ioctl(dev,&ifr,SIOCDEVPRIVATE);
79 set_fs (old_fs);
80 return ret;
81 }
82
83 static int wl_set_val(struct net_device *dev, char *var, void *val, int len)
84 {
85 char buf[128];
86 int buf_len;
87 int ret;
88
89 /* check for overflow */
90 if ((buf_len = strlen(var)) + 1 + len > sizeof(buf))
91 return -1;
92
93 strcpy(buf, var);
94 buf_len += 1;
95
96 /* append int value onto the end of the name string */
97 memcpy(&(buf[buf_len]), val, len);
98 buf_len += len;
99
100 ret = wl_ioctl(dev, WLC_SET_VAR, buf, buf_len);
101 return ret;
102 }
103
104 static int wl_get_val(struct net_device *dev, char *var, void *val, int len)
105 {
106 char buf[128];
107 int buf_len;
108 int ret;
109
110 /* check for overflow */
111 if ((buf_len = strlen(var)) + 1 > sizeof(buf) || len > sizeof(buf))
112 return -1;
113
114 strcpy(buf, var);
115 if (ret = wl_ioctl(dev, WLC_GET_VAR, buf, buf_len + len))
116 return ret;
117
118 memcpy(val, buf, len);
119 return 0;
120 }
121
122 int get_primary_key(struct net_device *dev)
123 {
124 int key, val;
125
126 for (key = val = 0; (key < 4) && (val == 0); key++) {
127 val = key;
128 if (wl_ioctl(dev, WLC_GET_KEY_PRIMARY, &val, sizeof(val)) < 0)
129 return -EINVAL;
130 }
131 return key;
132 }
133
134
135 static int wlcompat_ioctl_getiwrange(struct net_device *dev,
136 char *extra)
137 {
138 int i, k;
139 struct iw_range *range;
140
141 range = (struct iw_range *) extra;
142
143 range->we_version_compiled = WIRELESS_EXT;
144 range->we_version_source = WIRELESS_EXT;
145
146 range->min_nwid = range->max_nwid = 0;
147
148 range->num_channels = NUM_CHANNELS;
149 k = 0;
150 for (i = 0; i < NUM_CHANNELS; i++) {
151 range->freq[k].i = i + 1;
152 range->freq[k].m = channel_frequency[i] * 100000;
153 range->freq[k].e = 1;
154 k++;
155 if (k >= IW_MAX_FREQUENCIES)
156 break;
157 }
158 range->num_frequency = k;
159 range->sensitivity = 3;
160
161 /* nbd: don't know what this means, but other drivers set it this way */
162 range->pmp_flags = IW_POWER_PERIOD;
163 range->pmt_flags = IW_POWER_TIMEOUT;
164 range->pm_capa = IW_POWER_PERIOD | IW_POWER_TIMEOUT | IW_POWER_UNICAST_R;
165
166 range->min_pmp = 0;
167 range->max_pmp = 65535000;
168 range->min_pmt = 0;
169 range->max_pmt = 65535 * 1000;
170
171 range->max_qual.qual = 0;
172 range->max_qual.level = 100;
173 range->max_qual.noise = 100;
174
175 range->min_rts = 0;
176 if (wl_ioctl(dev, WLC_GET_RTS, &range->max_rts, sizeof(int)) < 0)
177 range->max_rts = 2347;
178
179 range->min_frag = 256;
180
181 if (wl_ioctl(dev, WLC_GET_FRAG, &range->max_frag, sizeof(int)) < 0)
182 range->max_frag = 2346;
183
184 range->txpower_capa = IW_TXPOW_DBM;
185
186 return 0;
187 }
188
189
190 static int wlcompat_set_scan(struct net_device *dev,
191 struct iw_request_info *info,
192 union iwreq_data *wrqu,
193 char *extra)
194 {
195 int ap = 0, oldap = 0;
196 wl_scan_params_t params;
197
198 memset(&params, 0, sizeof(params));
199
200 /* use defaults (same parameters as wl scan) */
201 memset(&params.bssid, 0xff, sizeof(params.bssid));
202 params.bss_type = DOT11_BSSTYPE_ANY;
203 params.scan_type = -1;
204 params.nprobes = -1;
205 params.active_time = -1;
206 params.passive_time = -1;
207 params.home_time = -1;
208
209 /* can only scan in STA mode */
210 wl_ioctl(dev, WLC_GET_AP, &oldap, sizeof(oldap));
211 if (oldap > 0)
212 wl_ioctl(dev, WLC_SET_AP, &ap, sizeof(ap));
213
214 if (wl_ioctl(dev, WLC_SCAN, &params, 64) < 0)
215 return -EINVAL;
216
217 if (oldap > 0)
218 wl_ioctl(dev, WLC_SET_AP, &oldap, sizeof(oldap));
219
220 return 0;
221 }
222
223
224 struct iw_statistics *wlcompat_get_wireless_stats(struct net_device *dev)
225 {
226 wl_bss_info_t *bss_info = (wl_bss_info_t *) buf;
227 get_pktcnt_t pkt;
228 int rssi, noise, ap;
229
230 memset(&wstats, 0, sizeof(wstats));
231 memset(&pkt, 0, sizeof(pkt));
232 memset(buf, 0, sizeof(buf));
233 bss_info->version = 0x2000;
234 wl_ioctl(dev, WLC_GET_BSS_INFO, bss_info, WLC_IOCTL_MAXLEN);
235 wl_ioctl(dev, WLC_GET_PKTCNTS, &pkt, sizeof(pkt));
236
237 wl_ioctl(dev, WLC_GET_AP, &ap, sizeof(ap));
238 if (!ap) {
239 // somehow the structure doesn't fit here
240 rssi = buf[82];
241 noise = buf[84];
242 } else {
243 noise = 0;
244 rssi = 0;
245 }
246
247 wstats.qual.level = rssi;
248 wstats.qual.noise = noise;
249 wstats.discard.misc = pkt.rx_bad_pkt;
250 wstats.discard.retries = pkt.tx_bad_pkt;
251
252 return &wstats;
253 }
254
255 static int wlcompat_get_scan(struct net_device *dev,
256 struct iw_request_info *info,
257 union iwreq_data *wrqu,
258 char *extra)
259 {
260 wl_scan_results_t *results = (wl_scan_results_t *) buf;
261 wl_bss_info_t *bss_info;
262 char *info_ptr;
263 char *current_ev = extra;
264 char *current_val;
265 char *end_buf = extra + IW_SCAN_MAX_DATA;
266 struct iw_event iwe;
267 int i, j;
268 int rssi, noise;
269
270 results->buflen = WLC_IOCTL_MAXLEN - sizeof(wl_scan_results_t);
271
272 if (wl_ioctl(dev, WLC_SCAN_RESULTS, buf, WLC_IOCTL_MAXLEN) < 0)
273 return -EAGAIN;
274
275 bss_info = &(results->bss_info[0]);
276 info_ptr = (char *) bss_info;
277 for (i = 0; i < results->count; i++) {
278
279 /* send the cell address (must be sent first) */
280 iwe.cmd = SIOCGIWAP;
281 iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
282 memcpy(&iwe.u.ap_addr.sa_data, &bss_info->BSSID, sizeof(bss_info->BSSID));
283 current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe, IW_EV_ADDR_LEN);
284
285 /* send the ESSID */
286 iwe.cmd = SIOCGIWESSID;
287 iwe.u.data.length = bss_info->SSID_len;
288 if (iwe.u.data.length > IW_ESSID_MAX_SIZE)
289 iwe.u.data.length = IW_ESSID_MAX_SIZE;
290 iwe.u.data.flags = 1;
291 current_ev = iwe_stream_add_point(current_ev, end_buf, &iwe, bss_info->SSID);
292
293 /* send frequency/channel info */
294 iwe.cmd = SIOCGIWFREQ;
295 iwe.u.freq.e = 0;
296 iwe.u.freq.m = bss_info->channel;
297 current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe, IW_EV_FREQ_LEN);
298
299 /* add quality statistics */
300 iwe.cmd = IWEVQUAL;
301 iwe.u.qual.qual = 0;
302 iwe.u.qual.level = bss_info->RSSI;
303 iwe.u.qual.noise = bss_info->phy_noise;
304 current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe, IW_EV_QUAL_LEN);
305
306 /* send rate information */
307 iwe.cmd = SIOCGIWRATE;
308 current_val = current_ev + IW_EV_LCP_LEN;
309 iwe.u.bitrate.fixed = iwe.u.bitrate.disabled = 0;
310
311 for(j = 0 ; j < bss_info->rateset.count ; j++) {
312 iwe.u.bitrate.value = ((bss_info->rateset.rates[j] & 0x7f) * 500000);
313 current_val = iwe_stream_add_value(current_ev, current_val, end_buf, &iwe, IW_EV_PARAM_LEN);
314 }
315 if((current_val - current_ev) > IW_EV_LCP_LEN)
316 current_ev = current_val;
317
318 info_ptr += sizeof(wl_bss_info_t);
319 if (bss_info->ie_length % 4)
320 info_ptr += bss_info->ie_length + 4 - (bss_info->ie_length % 4);
321 else
322 info_ptr += bss_info->ie_length;
323 bss_info = (wl_bss_info_t *) info_ptr;
324 }
325
326 wrqu->data.length = (current_ev - extra);
327 wrqu->data.flags = 0;
328
329 return 0;
330 }
331
332 static int wlcompat_ioctl(struct net_device *dev,
333 struct iw_request_info *info,
334 union iwreq_data *wrqu,
335 char *extra)
336 {
337 switch (info->cmd) {
338 case SIOCGIWNAME:
339 strcpy(wrqu->name, "IEEE 802.11-DS");
340 break;
341 case SIOCGIWFREQ:
342 {
343 channel_info_t ci;
344
345 if (wl_ioctl(dev,WLC_GET_CHANNEL, &ci, sizeof(ci)) < 0)
346 return -EINVAL;
347
348 wrqu->freq.m = ci.target_channel;
349 wrqu->freq.e = 0;
350 break;
351 }
352 case SIOCSIWFREQ:
353 {
354 if (wrqu->freq.m == -1) {
355 wrqu->freq.m = 0;
356 if (wl_ioctl(dev, WLC_SET_CHANNEL, &wrqu->freq.m, sizeof(int)) < 0)
357 return -EINVAL;
358 } else {
359 if (wrqu->freq.e == 1) {
360 int channel = 0;
361 int f = wrqu->freq.m / 100000;
362 while ((channel < NUM_CHANNELS + 1) && (f != channel_frequency[channel]))
363 channel++;
364
365 if (channel == NUM_CHANNELS) // channel not found
366 return -EINVAL;
367
368 wrqu->freq.e = 0;
369 wrqu->freq.m = channel + 1;
370 }
371 if ((wrqu->freq.e == 0) && (wrqu->freq.m < 1000)) {
372 if (wl_ioctl(dev, WLC_SET_CHANNEL, &wrqu->freq.m, sizeof(int)) < 0)
373 return -EINVAL;
374 } else {
375 return -EINVAL;
376 }
377 }
378 break;
379 }
380 case SIOCSIWAP:
381 {
382 int ap = 0;
383 int infra = 0;
384 rw_reg_t reg;
385
386 memset(&reg, 0, sizeof(reg));
387
388 if (wrqu->ap_addr.sa_family != ARPHRD_ETHER)
389 return -EINVAL;
390
391 if (wl_ioctl(dev, WLC_GET_AP, &ap, sizeof(ap)) < 0)
392 return -EINVAL;
393
394 if (wl_ioctl(dev, WLC_GET_INFRA, &infra, sizeof(infra)) < 0)
395 return -EINVAL;
396
397 if (!infra) {
398 wl_ioctl(dev, WLC_SET_BSSID, wrqu->ap_addr.sa_data, 6);
399
400 reg.size = 4;
401 reg.byteoff = 0x184;
402 reg.val = bss_force << 16 | bss_force;
403 wl_ioctl(dev, WLC_W_REG, &reg, sizeof(reg));
404
405 reg.byteoff = 0x180;
406 wl_ioctl(dev, WLC_R_REG, &reg, sizeof(reg));
407 reg.val = bss_force << 16;
408 wl_ioctl(dev, WLC_W_REG, &reg, sizeof(reg));
409 }
410
411 if (wl_ioctl(dev, ((ap || !infra) ? WLC_SET_BSSID : WLC_REASSOC), wrqu->ap_addr.sa_data, 6) < 0)
412 return -EINVAL;
413
414 break;
415 }
416 case SIOCGIWAP:
417 {
418 #ifdef DEBUG
419 rw_reg_t reg;
420 memset(&reg, 0, sizeof(reg));
421
422 reg.size = 4;
423 reg.byteoff = 0x184;
424 wl_ioctl(dev, WLC_R_REG, &reg, sizeof(reg));
425 printk("bss time = 0x%08x", reg.val);
426
427 reg.byteoff = 0x180;
428 wl_ioctl(dev, WLC_R_REG, &reg, sizeof(reg));
429 printk("%08x\n", reg.val);
430 #endif
431
432 wrqu->ap_addr.sa_family = ARPHRD_ETHER;
433 if (wl_ioctl(dev,WLC_GET_BSSID,wrqu->ap_addr.sa_data,6) < 0)
434 return -EINVAL;
435 break;
436 }
437 case SIOCGIWESSID:
438 {
439 wlc_ssid_t ssid;
440
441 if (wl_ioctl(dev,WLC_GET_SSID, &ssid, sizeof(wlc_ssid_t)) < 0)
442 return -EINVAL;
443
444 wrqu->essid.flags = wrqu->data.flags = 1;
445 wrqu->essid.length = wrqu->data.length = ssid.SSID_len + 1;
446 memcpy(extra,ssid.SSID,ssid.SSID_len + 1);
447 break;
448 }
449 case SIOCSIWESSID:
450 {
451 wlc_ssid_t ssid;
452 memset(&ssid, 0, sizeof(ssid));
453 ssid.SSID_len = strlen(extra);
454 if (ssid.SSID_len > WLC_ESSID_MAX_SIZE)
455 ssid.SSID_len = WLC_ESSID_MAX_SIZE;
456 memcpy(ssid.SSID, extra, ssid.SSID_len);
457 if (wl_ioctl(dev, WLC_SET_SSID, &ssid, sizeof(ssid)) < 0)
458 return -EINVAL;
459 break;
460 }
461 case SIOCGIWRTS:
462 {
463 if (wl_ioctl(dev,WLC_GET_RTS,&(wrqu->rts.value),sizeof(int)) < 0)
464 return -EINVAL;
465 break;
466 }
467 case SIOCSIWRTS:
468 {
469 if (wl_ioctl(dev,WLC_SET_RTS,&(wrqu->rts.value),sizeof(int)) < 0)
470 return -EINVAL;
471 break;
472 }
473 case SIOCGIWFRAG:
474 {
475 if (wl_ioctl(dev,WLC_GET_FRAG,&(wrqu->frag.value),sizeof(int)) < 0)
476 return -EINVAL;
477 break;
478 }
479 case SIOCSIWFRAG:
480 {
481 if (wl_ioctl(dev,WLC_SET_FRAG,&(wrqu->frag.value),sizeof(int)) < 0)
482 return -EINVAL;
483 break;
484 }
485 case SIOCGIWTXPOW:
486 {
487 int radio;
488
489 wl_ioctl(dev, WLC_GET_RADIO, &radio, sizeof(int));
490
491 if (wl_get_val(dev, "qtxpower", &(wrqu->txpower.value), sizeof(int)) < 0)
492 return -EINVAL;
493
494 wrqu->txpower.value &= ~WL_TXPWR_OVERRIDE;
495 wrqu->txpower.value /= 4;
496
497 wrqu->txpower.fixed = 0;
498 wrqu->txpower.disabled = radio;
499 wrqu->txpower.flags = IW_TXPOW_DBM;
500 break;
501 }
502 case SIOCSIWTXPOW:
503 {
504 /* This is weird: WLC_SET_RADIO with 1 as argument disables the radio */
505 int radio = wrqu->txpower.disabled;
506
507 wl_ioctl(dev, WLC_SET_RADIO, &radio, sizeof(int));
508
509 if (!wrqu->txpower.disabled && (wrqu->txpower.value > 0)) {
510 int value;
511
512 if (wl_get_val(dev, "qtxpower", &value, sizeof(int)) < 0)
513 return -EINVAL;
514
515 value &= WL_TXPWR_OVERRIDE;
516 wrqu->txpower.value *= 4;
517 wrqu->txpower.value |= value;
518
519 if (wrqu->txpower.flags != IW_TXPOW_DBM)
520 return -EINVAL;
521
522 if (wrqu->txpower.value > 0)
523 if (wl_set_val(dev, "qtxpower", &(wrqu->txpower.value), sizeof(int)) < 0)
524 return -EINVAL;
525 }
526 break;
527 }
528 case SIOCSIWENCODE:
529 {
530 int val = 0, wep = 1, wrestrict = 1;
531 int index = (wrqu->data.flags & IW_ENCODE_INDEX) - 1;
532
533 if (index < 0)
534 index = get_primary_key(dev);
535
536 if (wrqu->data.flags & IW_ENCODE_DISABLED) {
537 wep = 0;
538 if (wl_ioctl(dev, WLC_SET_WSEC, &wep, sizeof(val)) < 0)
539 return -EINVAL;
540 return 0;
541 }
542
543 if (wl_ioctl(dev, WLC_SET_WSEC, &wep, sizeof(val)) < 0)
544 return -EINVAL;
545
546 if (wrqu->data.flags & IW_ENCODE_OPEN)
547 wrestrict = 0;
548
549 if (wrqu->data.pointer && (wrqu->data.length > 0) && (wrqu->data.length <= 16)) {
550 wl_wsec_key_t key;
551 memset(&key, 0, sizeof(key));
552
553 key.flags = WL_PRIMARY_KEY;
554 key.len = wrqu->data.length;
555 key.index = index;
556 memcpy(key.data, wrqu->data.pointer, wrqu->data.length);
557
558 if (wl_ioctl(dev, WLC_SET_KEY, &key, sizeof(key)) < 0)
559 return -EINVAL;
560 }
561
562 if (index >= 0)
563 wl_ioctl(dev, WLC_SET_KEY_PRIMARY, &index, sizeof(index));
564
565 if (wrestrict >= 0)
566 wl_ioctl(dev, WLC_SET_WEP_RESTRICT, &wrestrict, sizeof(wrestrict));
567
568 break;
569 }
570 case SIOCGIWENCODE:
571 {
572 int val;
573
574 if (wl_ioctl(dev, WLC_GET_WEP, &val, sizeof(val)) < 0)
575 return -EINVAL;
576
577
578 if (val > 0) {
579 int key = get_primary_key(dev);
580
581 wrqu->data.flags = IW_ENCODE_ENABLED;
582 if (key-- > 0) {
583 int *info_addr;
584 wkey *wep_key;
585
586 info_addr = (int *) dev->priv;
587 wep_key = (wkey *) ((*info_addr) + 0x2752 + (key * 0x110));
588
589 wrqu->data.flags |= key + 1;
590 wrqu->data.length = wep_key->len;
591
592 memset(extra, 0, 16);
593 memcpy(extra, wep_key->data, 16);
594 } else {
595 wrqu->data.flags |= IW_ENCODE_NOKEY;
596 }
597 } else {
598 wrqu->data.flags = IW_ENCODE_DISABLED;
599 }
600
601 break;
602 }
603 case SIOCGIWRANGE:
604 {
605 return wlcompat_ioctl_getiwrange(dev, extra);
606 break;
607 }
608 case SIOCSIWMODE:
609 {
610 int ap = -1, infra = -1, passive = 0, wet = 0;
611
612 switch (wrqu->mode) {
613 case IW_MODE_MONITOR:
614 passive = 1;
615 break;
616 case IW_MODE_ADHOC:
617 infra = 0;
618 ap = 0;
619 break;
620 case IW_MODE_MASTER:
621 infra = 1;
622 ap = 1;
623 break;
624 case IW_MODE_INFRA:
625 infra = 1;
626 ap = 0;
627 break;
628 case IW_MODE_REPEAT:
629 infra = 1;
630 ap = 0;
631 wet = 1;
632 break;
633
634 default:
635 return -EINVAL;
636 }
637
638 wl_ioctl(dev, WLC_SET_PASSIVE, &passive, sizeof(passive));
639 wl_ioctl(dev, WLC_SET_MONITOR, &passive, sizeof(passive));
640 wl_ioctl(dev, WLC_SET_WET, &wet, sizeof(wet));
641 if (ap >= 0)
642 wl_ioctl(dev, WLC_SET_AP, &ap, sizeof(ap));
643 if (infra >= 0)
644 wl_ioctl(dev, WLC_SET_INFRA, &infra, sizeof(infra));
645
646 break;
647
648 }
649 case SIOCGIWMODE:
650 {
651 int ap, infra, wet, passive;
652
653 if (wl_ioctl(dev, WLC_GET_AP, &ap, sizeof(ap)) < 0)
654 return -EINVAL;
655 if (wl_ioctl(dev, WLC_GET_INFRA, &infra, sizeof(infra)) < 0)
656 return -EINVAL;
657 if (wl_ioctl(dev, WLC_GET_PASSIVE, &passive, sizeof(passive)) < 0)
658 return -EINVAL;
659 if (wl_ioctl(dev, WLC_GET_WET, &wet, sizeof(wet)) < 0)
660 return -EINVAL;
661
662 if (passive) {
663 wrqu->mode = IW_MODE_MONITOR;
664 } else if (!infra) {
665 wrqu->mode = IW_MODE_ADHOC;
666 } else {
667 if (ap) {
668 wrqu->mode = IW_MODE_MASTER;
669 } else {
670 if (wet) {
671 wrqu->mode = IW_MODE_REPEAT;
672 } else {
673 wrqu->mode = IW_MODE_INFRA;
674 }
675 }
676 }
677 break;
678 }
679 default:
680 {
681 if (info->cmd >= SIOCIWFIRSTPRIV)
682 return wlcompat_private_ioctl(dev, info, wrqu, extra);
683
684 return -EINVAL;
685 }
686 }
687
688 return 0;
689 }
690
691 static const iw_handler wlcompat_handler[] = {
692 NULL, /* SIOCSIWCOMMIT */
693 wlcompat_ioctl, /* SIOCGIWNAME */
694 NULL, /* SIOCSIWNWID */
695 NULL, /* SIOCGIWNWID */
696 wlcompat_ioctl, /* SIOCSIWFREQ */
697 wlcompat_ioctl, /* SIOCGIWFREQ */
698 wlcompat_ioctl, /* SIOCSIWMODE */
699 wlcompat_ioctl, /* SIOCGIWMODE */
700 NULL, /* SIOCSIWSENS */
701 NULL, /* SIOCGIWSENS */
702 NULL, /* SIOCSIWRANGE, unused */
703 wlcompat_ioctl, /* SIOCGIWRANGE */
704 NULL, /* SIOCSIWPRIV */
705 NULL, /* SIOCGIWPRIV */
706 NULL, /* SIOCSIWSTATS */
707 NULL, /* SIOCGIWSTATS */
708 iw_handler_set_spy, /* SIOCSIWSPY */
709 iw_handler_get_spy, /* SIOCGIWSPY */
710 iw_handler_set_thrspy, /* SIOCSIWTHRSPY */
711 iw_handler_get_thrspy, /* SIOCGIWTHRSPY */
712 wlcompat_ioctl, /* SIOCSIWAP */
713 wlcompat_ioctl, /* SIOCGIWAP */
714 NULL, /* -- hole -- */
715 NULL, /* SIOCGIWAPLIST */
716 wlcompat_set_scan, /* SIOCSIWSCAN */
717 wlcompat_get_scan, /* SIOCGIWSCAN */
718 wlcompat_ioctl, /* SIOCSIWESSID */
719 wlcompat_ioctl, /* SIOCGIWESSID */
720 NULL, /* SIOCSIWNICKN */
721 NULL, /* SIOCGIWNICKN */
722 NULL, /* -- hole -- */
723 NULL, /* -- hole -- */
724 NULL, /* SIOCSIWRATE */
725 NULL, /* SIOCGIWRATE */
726 wlcompat_ioctl, /* SIOCSIWRTS */
727 wlcompat_ioctl, /* SIOCGIWRTS */
728 wlcompat_ioctl, /* SIOCSIWFRAG */
729 wlcompat_ioctl, /* SIOCGIWFRAG */
730 wlcompat_ioctl, /* SIOCSIWTXPOW */
731 wlcompat_ioctl, /* SIOCGIWTXPOW */
732 NULL, /* SIOCSIWRETRY */
733 NULL, /* SIOCGIWRETRY */
734 wlcompat_ioctl, /* SIOCSIWENCODE */
735 wlcompat_ioctl, /* SIOCGIWENCODE */
736 };
737
738
739 #define WLCOMPAT_SET_MONITOR SIOCIWFIRSTPRIV + 0
740 #define WLCOMPAT_GET_MONITOR SIOCIWFIRSTPRIV + 1
741 #define WLCOMPAT_SET_TXPWR_LIMIT SIOCIWFIRSTPRIV + 2
742 #define WLCOMPAT_GET_TXPWR_LIMIT SIOCIWFIRSTPRIV + 3
743 #define WLCOMPAT_SET_ANTDIV SIOCIWFIRSTPRIV + 4
744 #define WLCOMPAT_GET_ANTDIV SIOCIWFIRSTPRIV + 5
745 #define WLCOMPAT_SET_TXANT SIOCIWFIRSTPRIV + 6
746 #define WLCOMPAT_GET_TXANT SIOCIWFIRSTPRIV + 7
747 #define WLCOMPAT_SET_BSS_FORCE SIOCIWFIRSTPRIV + 8
748 #define WLCOMPAT_GET_BSS_FORCE SIOCIWFIRSTPRIV + 9
749
750
751 static int wlcompat_private_ioctl(struct net_device *dev,
752 struct iw_request_info *info,
753 union iwreq_data *wrqu,
754 char *extra)
755 {
756 int *value = (int *) wrqu->name;
757
758 switch (info->cmd) {
759 case WLCOMPAT_SET_MONITOR:
760 {
761 if (wl_ioctl(dev, WLC_SET_MONITOR, value, sizeof(int)) < 0)
762 return -EINVAL;
763
764 break;
765 }
766 case WLCOMPAT_GET_MONITOR:
767 {
768 if (wl_ioctl(dev, WLC_GET_MONITOR, extra, sizeof(int)) < 0)
769 return -EINVAL;
770
771 break;
772 }
773 case WLCOMPAT_SET_TXPWR_LIMIT:
774 {
775 int val;
776
777
778 if (wl_get_val(dev, "qtxpower", &val, sizeof(int)) < 0)
779 return -EINVAL;
780
781 if (*extra > 0)
782 val |= WL_TXPWR_OVERRIDE;
783 else
784 val &= ~WL_TXPWR_OVERRIDE;
785
786 if (wl_set_val(dev, "qtxpower", &val, sizeof(int)) < 0)
787 return -EINVAL;
788
789 break;
790 }
791 case WLCOMPAT_GET_TXPWR_LIMIT:
792 {
793 if (wl_get_val(dev, "qtxpower", value, sizeof(int)) < 0)
794 return -EINVAL;
795
796 *value = ((*value & WL_TXPWR_OVERRIDE) == WL_TXPWR_OVERRIDE ? 1 : 0);
797
798 break;
799 }
800 case WLCOMPAT_SET_ANTDIV:
801 {
802 if (wl_ioctl(dev, WLC_SET_ANTDIV, value, sizeof(int)) < 0)
803 return -EINVAL;
804
805 break;
806 }
807 case WLCOMPAT_GET_ANTDIV:
808 {
809 if (wl_ioctl(dev, WLC_GET_ANTDIV, extra, sizeof(int)) < 0)
810 return -EINVAL;
811
812 break;
813 }
814 case WLCOMPAT_SET_TXANT:
815 {
816 if (wl_ioctl(dev, WLC_SET_TXANT, value, sizeof(int)) < 0)
817 return -EINVAL;
818
819 break;
820 }
821 case WLCOMPAT_GET_TXANT:
822 {
823 if (wl_ioctl(dev, WLC_GET_TXANT, extra, sizeof(int)) < 0)
824 return -EINVAL;
825
826 break;
827 }
828 case WLCOMPAT_SET_BSS_FORCE:
829 {
830 bss_force = (unsigned short) *value;
831 break;
832 }
833 case WLCOMPAT_GET_BSS_FORCE:
834 {
835 *extra = (int) bss_force;
836 break;
837 }
838 default:
839 {
840 return -EINVAL;
841 }
842
843 }
844 return 0;
845 }
846
847 static const struct iw_priv_args wlcompat_private_args[] =
848 {
849 { WLCOMPAT_SET_MONITOR,
850 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
851 0,
852 "set_monitor"
853 },
854 { WLCOMPAT_GET_MONITOR,
855 0,
856 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
857 "get_monitor"
858 },
859 { WLCOMPAT_SET_TXPWR_LIMIT,
860 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
861 0,
862 "set_txpwr_force"
863 },
864 { WLCOMPAT_GET_TXPWR_LIMIT,
865 0,
866 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
867 "get_txpwr_force"
868 },
869 { WLCOMPAT_SET_ANTDIV,
870 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
871 0,
872 "set_antdiv"
873 },
874 { WLCOMPAT_GET_ANTDIV,
875 0,
876 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
877 "get_antdiv"
878 },
879 { WLCOMPAT_SET_TXANT,
880 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
881 0,
882 "set_txant"
883 },
884 { WLCOMPAT_GET_TXANT,
885 0,
886 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
887 "get_txant"
888 },
889 { WLCOMPAT_SET_BSS_FORCE,
890 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
891 0,
892 "set_bss_force"
893 },
894 { WLCOMPAT_GET_BSS_FORCE,
895 0,
896 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
897 "get_bss_force"
898 },
899 };
900
901 static const iw_handler wlcompat_private[] =
902 {
903 wlcompat_private_ioctl,
904 NULL
905 };
906
907
908 static const struct iw_handler_def wlcompat_handler_def =
909 {
910 .standard = (iw_handler *) wlcompat_handler,
911 .num_standard = sizeof(wlcompat_handler)/sizeof(iw_handler),
912 .private = wlcompat_private,
913 .num_private = 1,
914 .private_args = wlcompat_private_args,
915 .num_private_args = sizeof(wlcompat_private_args) / sizeof(wlcompat_private_args[0])
916 };
917
918
919 #ifdef DEBUG
920 void print_buffer(int len, unsigned char *buf) {
921 int x;
922 if (buf != NULL) {
923 for (x=0;x<len && x<180 ;x++) {
924 if ((x % 4) == 0)
925 printk(" ");
926 printk("%02X",buf[x]);
927 }
928 } else {
929 printk(" NULL");
930 }
931 printk("\n");
932
933 }
934 #endif
935 static int (*old_ioctl)(struct net_device *dev, struct ifreq *ifr, int cmd);
936 static int new_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) {
937 int ret = 0;
938 struct iwreq *iwr = (struct iwreq *) ifr;
939 struct iw_request_info info;
940
941 #ifdef DEBUG
942 printk("dev: %s ioctl: 0x%04x\n",dev->name,cmd);
943 #endif
944
945 if (cmd >= SIOCIWFIRSTPRIV) {
946 info.cmd = cmd;
947 info.flags = 0;
948 ret = wlcompat_private_ioctl(dev, &info, &(iwr->u), (char *) &(iwr->u));
949 #ifdef DEBUG
950 } else if (cmd==SIOCDEVPRIVATE) {
951 wl_ioctl_t *ioc = (wl_ioctl_t *)ifr->ifr_data;
952 unsigned char *buf = ioc->buf;
953 printk(" cmd: %d buf: 0x%08x len: %d\n",ioc->cmd,&(ioc->buf),ioc->len);
954 printk(" send: ->");
955 print_buffer(ioc->len, buf);
956 ret = old_ioctl(dev,ifr,cmd);
957 printk(" recv: ->");
958 print_buffer(ioc->len, buf);
959 printk(" ret: %d\n", ret);
960 #endif
961 } else {
962 ret = old_ioctl(dev,ifr,cmd);
963 }
964 return ret;
965 }
966
967 static int __init wlcompat_init()
968 {
969 int found = 0, i;
970 char *devname = "eth0";
971 bss_force = 0;
972
973 while (!found && (dev = dev_get_by_name(devname))) {
974 if ((dev->wireless_handlers == NULL) && ((wl_ioctl(dev, WLC_GET_MAGIC, &i, sizeof(i)) == 0) && i == WLC_IOCTL_MAGIC))
975 found = 1;
976 devname[3]++;
977 }
978
979 if (!found) {
980 printk("No Broadcom devices found.\n");
981 return -ENODEV;
982 }
983
984
985 old_ioctl = dev->do_ioctl;
986 dev->do_ioctl = new_ioctl;
987 dev->wireless_handlers = (struct iw_handler_def *)&wlcompat_handler_def;
988 dev->get_wireless_stats = wlcompat_get_wireless_stats;
989 #ifdef DEBUG
990 printk("broadcom driver private data: 0x%08x\n", dev->priv);
991 #endif
992 return 0;
993 }
994
995 static void __exit wlcompat_exit()
996 {
997 dev->get_wireless_stats = NULL;
998 dev->wireless_handlers = NULL;
999 dev->do_ioctl = old_ioctl;
1000 return;
1001 }
1002
1003 EXPORT_NO_SYMBOLS;
1004 MODULE_AUTHOR("openwrt.org");
1005 MODULE_LICENSE("GPL");
1006
1007 module_init(wlcompat_init);
1008 module_exit(wlcompat_exit);
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