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Merge tag 'v3.11-rc7' into stable/for-linus-3.12
[deliverable/linux.git] / drivers / net / wireless / zd1201.c
1 /*
2 * Driver for ZyDAS zd1201 based wireless USB devices.
3 *
4 * Copyright (c) 2004, 2005 Jeroen Vreeken (pe1rxq@amsat.org)
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * version 2 as published by the Free Software Foundation.
9 *
10 * Parts of this driver have been derived from a wlan-ng version
11 * modified by ZyDAS. They also made documentation available, thanks!
12 * Copyright (C) 1999 AbsoluteValue Systems, Inc. All Rights Reserved.
13 */
14
15 #include <linux/module.h>
16 #include <linux/usb.h>
17 #include <linux/slab.h>
18 #include <linux/netdevice.h>
19 #include <linux/etherdevice.h>
20 #include <linux/wireless.h>
21 #include <linux/ieee80211.h>
22 #include <net/iw_handler.h>
23 #include <linux/string.h>
24 #include <linux/if_arp.h>
25 #include <linux/firmware.h>
26 #include "zd1201.h"
27
28 static struct usb_device_id zd1201_table[] = {
29 {USB_DEVICE(0x0586, 0x3400)}, /* Peabird Wireless USB Adapter */
30 {USB_DEVICE(0x0ace, 0x1201)}, /* ZyDAS ZD1201 Wireless USB Adapter */
31 {USB_DEVICE(0x050d, 0x6051)}, /* Belkin F5D6051 usb adapter */
32 {USB_DEVICE(0x0db0, 0x6823)}, /* MSI UB11B usb adapter */
33 {USB_DEVICE(0x1044, 0x8004)}, /* Gigabyte GN-WLBZ101 */
34 {USB_DEVICE(0x1044, 0x8005)}, /* GIGABYTE GN-WLBZ201 usb adapter */
35 {}
36 };
37
38 static int ap; /* Are we an AP or a normal station? */
39
40 #define ZD1201_VERSION "0.15"
41
42 MODULE_AUTHOR("Jeroen Vreeken <pe1rxq@amsat.org>");
43 MODULE_DESCRIPTION("Driver for ZyDAS ZD1201 based USB Wireless adapters");
44 MODULE_VERSION(ZD1201_VERSION);
45 MODULE_LICENSE("GPL");
46 module_param(ap, int, 0);
47 MODULE_PARM_DESC(ap, "If non-zero Access Point firmware will be loaded");
48 MODULE_DEVICE_TABLE(usb, zd1201_table);
49
50
51 static int zd1201_fw_upload(struct usb_device *dev, int apfw)
52 {
53 const struct firmware *fw_entry;
54 const char *data;
55 unsigned long len;
56 int err;
57 unsigned char ret;
58 char *buf;
59 char *fwfile;
60
61 if (apfw)
62 fwfile = "zd1201-ap.fw";
63 else
64 fwfile = "zd1201.fw";
65
66 err = request_firmware(&fw_entry, fwfile, &dev->dev);
67 if (err) {
68 dev_err(&dev->dev, "Failed to load %s firmware file!\n", fwfile);
69 dev_err(&dev->dev, "Make sure the hotplug firmware loader is installed.\n");
70 dev_err(&dev->dev, "Goto http://linux-lc100020.sourceforge.net for more info.\n");
71 return err;
72 }
73
74 data = fw_entry->data;
75 len = fw_entry->size;
76
77 buf = kmalloc(1024, GFP_ATOMIC);
78 if (!buf)
79 goto exit;
80
81 while (len > 0) {
82 int translen = (len > 1024) ? 1024 : len;
83 memcpy(buf, data, translen);
84
85 err = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), 0,
86 USB_DIR_OUT | 0x40, 0, 0, buf, translen,
87 ZD1201_FW_TIMEOUT);
88 if (err < 0)
89 goto exit;
90
91 len -= translen;
92 data += translen;
93 }
94
95 err = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), 0x2,
96 USB_DIR_OUT | 0x40, 0, 0, NULL, 0, ZD1201_FW_TIMEOUT);
97 if (err < 0)
98 goto exit;
99
100 err = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), 0x4,
101 USB_DIR_IN | 0x40, 0, 0, buf, sizeof(ret), ZD1201_FW_TIMEOUT);
102 if (err < 0)
103 goto exit;
104
105 memcpy(&ret, buf, sizeof(ret));
106
107 if (ret & 0x80) {
108 err = -EIO;
109 goto exit;
110 }
111
112 err = 0;
113 exit:
114 kfree(buf);
115 release_firmware(fw_entry);
116 return err;
117 }
118
119 MODULE_FIRMWARE("zd1201-ap.fw");
120 MODULE_FIRMWARE("zd1201.fw");
121
122 static void zd1201_usbfree(struct urb *urb)
123 {
124 struct zd1201 *zd = urb->context;
125
126 switch(urb->status) {
127 case -EILSEQ:
128 case -ENODEV:
129 case -ETIME:
130 case -ENOENT:
131 case -EPIPE:
132 case -EOVERFLOW:
133 case -ESHUTDOWN:
134 dev_warn(&zd->usb->dev, "%s: urb failed: %d\n",
135 zd->dev->name, urb->status);
136 }
137
138 kfree(urb->transfer_buffer);
139 usb_free_urb(urb);
140 }
141
142 /* cmdreq message:
143 u32 type
144 u16 cmd
145 u16 parm0
146 u16 parm1
147 u16 parm2
148 u8 pad[4]
149
150 total: 4 + 2 + 2 + 2 + 2 + 4 = 16
151 */
152 static int zd1201_docmd(struct zd1201 *zd, int cmd, int parm0,
153 int parm1, int parm2)
154 {
155 unsigned char *command;
156 int ret;
157 struct urb *urb;
158
159 command = kmalloc(16, GFP_ATOMIC);
160 if (!command)
161 return -ENOMEM;
162
163 *((__le32*)command) = cpu_to_le32(ZD1201_USB_CMDREQ);
164 *((__le16*)&command[4]) = cpu_to_le16(cmd);
165 *((__le16*)&command[6]) = cpu_to_le16(parm0);
166 *((__le16*)&command[8]) = cpu_to_le16(parm1);
167 *((__le16*)&command[10])= cpu_to_le16(parm2);
168
169 urb = usb_alloc_urb(0, GFP_ATOMIC);
170 if (!urb) {
171 kfree(command);
172 return -ENOMEM;
173 }
174 usb_fill_bulk_urb(urb, zd->usb, usb_sndbulkpipe(zd->usb, zd->endp_out2),
175 command, 16, zd1201_usbfree, zd);
176 ret = usb_submit_urb(urb, GFP_ATOMIC);
177 if (ret) {
178 kfree(command);
179 usb_free_urb(urb);
180 }
181
182 return ret;
183 }
184
185 /* Callback after sending out a packet */
186 static void zd1201_usbtx(struct urb *urb)
187 {
188 struct zd1201 *zd = urb->context;
189 netif_wake_queue(zd->dev);
190 }
191
192 /* Incoming data */
193 static void zd1201_usbrx(struct urb *urb)
194 {
195 struct zd1201 *zd = urb->context;
196 int free = 0;
197 unsigned char *data = urb->transfer_buffer;
198 struct sk_buff *skb;
199 unsigned char type;
200
201 if (!zd)
202 return;
203
204 switch(urb->status) {
205 case -EILSEQ:
206 case -ENODEV:
207 case -ETIME:
208 case -ENOENT:
209 case -EPIPE:
210 case -EOVERFLOW:
211 case -ESHUTDOWN:
212 dev_warn(&zd->usb->dev, "%s: rx urb failed: %d\n",
213 zd->dev->name, urb->status);
214 free = 1;
215 goto exit;
216 }
217
218 if (urb->status != 0 || urb->actual_length == 0)
219 goto resubmit;
220
221 type = data[0];
222 if (type == ZD1201_PACKET_EVENTSTAT || type == ZD1201_PACKET_RESOURCE) {
223 memcpy(zd->rxdata, data, urb->actual_length);
224 zd->rxlen = urb->actual_length;
225 zd->rxdatas = 1;
226 wake_up(&zd->rxdataq);
227 }
228 /* Info frame */
229 if (type == ZD1201_PACKET_INQUIRE) {
230 int i = 0;
231 unsigned short infotype, framelen, copylen;
232 framelen = le16_to_cpu(*(__le16*)&data[4]);
233 infotype = le16_to_cpu(*(__le16*)&data[6]);
234
235 if (infotype == ZD1201_INF_LINKSTATUS) {
236 short linkstatus;
237
238 linkstatus = le16_to_cpu(*(__le16*)&data[8]);
239 switch(linkstatus) {
240 case 1:
241 netif_carrier_on(zd->dev);
242 break;
243 case 2:
244 netif_carrier_off(zd->dev);
245 break;
246 case 3:
247 netif_carrier_off(zd->dev);
248 break;
249 case 4:
250 netif_carrier_on(zd->dev);
251 break;
252 default:
253 netif_carrier_off(zd->dev);
254 }
255 goto resubmit;
256 }
257 if (infotype == ZD1201_INF_ASSOCSTATUS) {
258 short status = le16_to_cpu(*(__le16*)(data+8));
259 int event;
260 union iwreq_data wrqu;
261
262 switch (status) {
263 case ZD1201_ASSOCSTATUS_STAASSOC:
264 case ZD1201_ASSOCSTATUS_REASSOC:
265 event = IWEVREGISTERED;
266 break;
267 case ZD1201_ASSOCSTATUS_DISASSOC:
268 case ZD1201_ASSOCSTATUS_ASSOCFAIL:
269 case ZD1201_ASSOCSTATUS_AUTHFAIL:
270 default:
271 event = IWEVEXPIRED;
272 }
273 memcpy(wrqu.addr.sa_data, data+10, ETH_ALEN);
274 wrqu.addr.sa_family = ARPHRD_ETHER;
275
276 /* Send event to user space */
277 wireless_send_event(zd->dev, event, &wrqu, NULL);
278
279 goto resubmit;
280 }
281 if (infotype == ZD1201_INF_AUTHREQ) {
282 union iwreq_data wrqu;
283
284 memcpy(wrqu.addr.sa_data, data+8, ETH_ALEN);
285 wrqu.addr.sa_family = ARPHRD_ETHER;
286 /* There isn't a event that trully fits this request.
287 We assume that userspace will be smart enough to
288 see a new station being expired and sends back a
289 authstation ioctl to authorize it. */
290 wireless_send_event(zd->dev, IWEVEXPIRED, &wrqu, NULL);
291 goto resubmit;
292 }
293 /* Other infotypes are handled outside this handler */
294 zd->rxlen = 0;
295 while (i < urb->actual_length) {
296 copylen = le16_to_cpu(*(__le16*)&data[i+2]);
297 /* Sanity check, sometimes we get junk */
298 if (copylen+zd->rxlen > sizeof(zd->rxdata))
299 break;
300 memcpy(zd->rxdata+zd->rxlen, data+i+4, copylen);
301 zd->rxlen += copylen;
302 i += 64;
303 }
304 if (i >= urb->actual_length) {
305 zd->rxdatas = 1;
306 wake_up(&zd->rxdataq);
307 }
308 goto resubmit;
309 }
310 /* Actual data */
311 if (data[urb->actual_length-1] == ZD1201_PACKET_RXDATA) {
312 int datalen = urb->actual_length-1;
313 unsigned short len, fc, seq;
314
315 len = ntohs(*(__be16 *)&data[datalen-2]);
316 if (len>datalen)
317 len=datalen;
318 fc = le16_to_cpu(*(__le16 *)&data[datalen-16]);
319 seq = le16_to_cpu(*(__le16 *)&data[datalen-24]);
320
321 if (zd->monitor) {
322 if (datalen < 24)
323 goto resubmit;
324 if (!(skb = dev_alloc_skb(datalen+24)))
325 goto resubmit;
326
327 memcpy(skb_put(skb, 2), &data[datalen-16], 2);
328 memcpy(skb_put(skb, 2), &data[datalen-2], 2);
329 memcpy(skb_put(skb, 6), &data[datalen-14], 6);
330 memcpy(skb_put(skb, 6), &data[datalen-22], 6);
331 memcpy(skb_put(skb, 6), &data[datalen-8], 6);
332 memcpy(skb_put(skb, 2), &data[datalen-24], 2);
333 memcpy(skb_put(skb, len), data, len);
334 skb->protocol = eth_type_trans(skb, zd->dev);
335 zd->dev->stats.rx_packets++;
336 zd->dev->stats.rx_bytes += skb->len;
337 netif_rx(skb);
338 goto resubmit;
339 }
340
341 if ((seq & IEEE80211_SCTL_FRAG) ||
342 (fc & IEEE80211_FCTL_MOREFRAGS)) {
343 struct zd1201_frag *frag = NULL;
344 char *ptr;
345
346 if (datalen<14)
347 goto resubmit;
348 if ((seq & IEEE80211_SCTL_FRAG) == 0) {
349 frag = kmalloc(sizeof(*frag), GFP_ATOMIC);
350 if (!frag)
351 goto resubmit;
352 skb = dev_alloc_skb(IEEE80211_MAX_DATA_LEN +14+2);
353 if (!skb) {
354 kfree(frag);
355 goto resubmit;
356 }
357 frag->skb = skb;
358 frag->seq = seq & IEEE80211_SCTL_SEQ;
359 skb_reserve(skb, 2);
360 memcpy(skb_put(skb, 12), &data[datalen-14], 12);
361 memcpy(skb_put(skb, 2), &data[6], 2);
362 memcpy(skb_put(skb, len), data+8, len);
363 hlist_add_head(&frag->fnode, &zd->fraglist);
364 goto resubmit;
365 }
366 hlist_for_each_entry(frag, &zd->fraglist, fnode)
367 if (frag->seq == (seq&IEEE80211_SCTL_SEQ))
368 break;
369 if (!frag)
370 goto resubmit;
371 skb = frag->skb;
372 ptr = skb_put(skb, len);
373 if (ptr)
374 memcpy(ptr, data+8, len);
375 if (fc & IEEE80211_FCTL_MOREFRAGS)
376 goto resubmit;
377 hlist_del_init(&frag->fnode);
378 kfree(frag);
379 } else {
380 if (datalen<14)
381 goto resubmit;
382 skb = dev_alloc_skb(len + 14 + 2);
383 if (!skb)
384 goto resubmit;
385 skb_reserve(skb, 2);
386 memcpy(skb_put(skb, 12), &data[datalen-14], 12);
387 memcpy(skb_put(skb, 2), &data[6], 2);
388 memcpy(skb_put(skb, len), data+8, len);
389 }
390 skb->protocol = eth_type_trans(skb, zd->dev);
391 zd->dev->stats.rx_packets++;
392 zd->dev->stats.rx_bytes += skb->len;
393 netif_rx(skb);
394 }
395 resubmit:
396 memset(data, 0, ZD1201_RXSIZE);
397
398 urb->status = 0;
399 urb->dev = zd->usb;
400 if(usb_submit_urb(urb, GFP_ATOMIC))
401 free = 1;
402
403 exit:
404 if (free) {
405 zd->rxlen = 0;
406 zd->rxdatas = 1;
407 wake_up(&zd->rxdataq);
408 kfree(urb->transfer_buffer);
409 }
410 }
411
412 static int zd1201_getconfig(struct zd1201 *zd, int rid, void *riddata,
413 unsigned int riddatalen)
414 {
415 int err;
416 int i = 0;
417 int code;
418 int rid_fid;
419 int length;
420 unsigned char *pdata;
421
422 zd->rxdatas = 0;
423 err = zd1201_docmd(zd, ZD1201_CMDCODE_ACCESS, rid, 0, 0);
424 if (err)
425 return err;
426
427 wait_event_interruptible(zd->rxdataq, zd->rxdatas);
428 if (!zd->rxlen)
429 return -EIO;
430
431 code = le16_to_cpu(*(__le16*)(&zd->rxdata[4]));
432 rid_fid = le16_to_cpu(*(__le16*)(&zd->rxdata[6]));
433 length = le16_to_cpu(*(__le16*)(&zd->rxdata[8]));
434 if (length > zd->rxlen)
435 length = zd->rxlen-6;
436
437 /* If access bit is not on, then error */
438 if ((code & ZD1201_ACCESSBIT) != ZD1201_ACCESSBIT || rid_fid != rid )
439 return -EINVAL;
440
441 /* Not enough buffer for allocating data */
442 if (riddatalen != (length - 4)) {
443 dev_dbg(&zd->usb->dev, "riddatalen mismatches, expected=%u, (packet=%u) length=%u, rid=0x%04X, rid_fid=0x%04X\n",
444 riddatalen, zd->rxlen, length, rid, rid_fid);
445 return -ENODATA;
446 }
447
448 zd->rxdatas = 0;
449 /* Issue SetRxRid commnd */
450 err = zd1201_docmd(zd, ZD1201_CMDCODE_SETRXRID, rid, 0, length);
451 if (err)
452 return err;
453
454 /* Receive RID record from resource packets */
455 wait_event_interruptible(zd->rxdataq, zd->rxdatas);
456 if (!zd->rxlen)
457 return -EIO;
458
459 if (zd->rxdata[zd->rxlen - 1] != ZD1201_PACKET_RESOURCE) {
460 dev_dbg(&zd->usb->dev, "Packet type mismatch: 0x%x not 0x3\n",
461 zd->rxdata[zd->rxlen-1]);
462 return -EINVAL;
463 }
464
465 /* Set the data pointer and received data length */
466 pdata = zd->rxdata;
467 length = zd->rxlen;
468
469 do {
470 int actual_length;
471
472 actual_length = (length > 64) ? 64 : length;
473
474 if (pdata[0] != 0x3) {
475 dev_dbg(&zd->usb->dev, "Rx Resource packet type error: %02X\n",
476 pdata[0]);
477 return -EINVAL;
478 }
479
480 if (actual_length != 64) {
481 /* Trim the last packet type byte */
482 actual_length--;
483 }
484
485 /* Skip the 4 bytes header (RID length and RID) */
486 if (i == 0) {
487 pdata += 8;
488 actual_length -= 8;
489 } else {
490 pdata += 4;
491 actual_length -= 4;
492 }
493
494 memcpy(riddata, pdata, actual_length);
495 riddata += actual_length;
496 pdata += actual_length;
497 length -= 64;
498 i++;
499 } while (length > 0);
500
501 return 0;
502 }
503
504 /*
505 * resreq:
506 * byte type
507 * byte sequence
508 * u16 reserved
509 * byte data[12]
510 * total: 16
511 */
512 static int zd1201_setconfig(struct zd1201 *zd, int rid, void *buf, int len, int wait)
513 {
514 int err;
515 unsigned char *request;
516 int reqlen;
517 char seq=0;
518 struct urb *urb;
519 gfp_t gfp_mask = wait ? GFP_NOIO : GFP_ATOMIC;
520
521 len += 4; /* first 4 are for header */
522
523 zd->rxdatas = 0;
524 zd->rxlen = 0;
525 for (seq=0; len > 0; seq++) {
526 request = kmalloc(16, gfp_mask);
527 if (!request)
528 return -ENOMEM;
529 urb = usb_alloc_urb(0, gfp_mask);
530 if (!urb) {
531 kfree(request);
532 return -ENOMEM;
533 }
534 memset(request, 0, 16);
535 reqlen = len>12 ? 12 : len;
536 request[0] = ZD1201_USB_RESREQ;
537 request[1] = seq;
538 request[2] = 0;
539 request[3] = 0;
540 if (request[1] == 0) {
541 /* add header */
542 *(__le16*)&request[4] = cpu_to_le16((len-2+1)/2);
543 *(__le16*)&request[6] = cpu_to_le16(rid);
544 memcpy(request+8, buf, reqlen-4);
545 buf += reqlen-4;
546 } else {
547 memcpy(request+4, buf, reqlen);
548 buf += reqlen;
549 }
550
551 len -= reqlen;
552
553 usb_fill_bulk_urb(urb, zd->usb, usb_sndbulkpipe(zd->usb,
554 zd->endp_out2), request, 16, zd1201_usbfree, zd);
555 err = usb_submit_urb(urb, gfp_mask);
556 if (err)
557 goto err;
558 }
559
560 request = kmalloc(16, gfp_mask);
561 if (!request)
562 return -ENOMEM;
563 urb = usb_alloc_urb(0, gfp_mask);
564 if (!urb) {
565 kfree(request);
566 return -ENOMEM;
567 }
568 *((__le32*)request) = cpu_to_le32(ZD1201_USB_CMDREQ);
569 *((__le16*)&request[4]) =
570 cpu_to_le16(ZD1201_CMDCODE_ACCESS|ZD1201_ACCESSBIT);
571 *((__le16*)&request[6]) = cpu_to_le16(rid);
572 *((__le16*)&request[8]) = cpu_to_le16(0);
573 *((__le16*)&request[10]) = cpu_to_le16(0);
574 usb_fill_bulk_urb(urb, zd->usb, usb_sndbulkpipe(zd->usb, zd->endp_out2),
575 request, 16, zd1201_usbfree, zd);
576 err = usb_submit_urb(urb, gfp_mask);
577 if (err)
578 goto err;
579
580 if (wait) {
581 wait_event_interruptible(zd->rxdataq, zd->rxdatas);
582 if (!zd->rxlen || le16_to_cpu(*(__le16*)&zd->rxdata[6]) != rid) {
583 dev_dbg(&zd->usb->dev, "wrong or no RID received\n");
584 }
585 }
586
587 return 0;
588 err:
589 kfree(request);
590 usb_free_urb(urb);
591 return err;
592 }
593
594 static inline int zd1201_getconfig16(struct zd1201 *zd, int rid, short *val)
595 {
596 int err;
597 __le16 zdval;
598
599 err = zd1201_getconfig(zd, rid, &zdval, sizeof(__le16));
600 if (err)
601 return err;
602 *val = le16_to_cpu(zdval);
603 return 0;
604 }
605
606 static inline int zd1201_setconfig16(struct zd1201 *zd, int rid, short val)
607 {
608 __le16 zdval = cpu_to_le16(val);
609 return (zd1201_setconfig(zd, rid, &zdval, sizeof(__le16), 1));
610 }
611
612 static int zd1201_drvr_start(struct zd1201 *zd)
613 {
614 int err, i;
615 short max;
616 __le16 zdmax;
617 unsigned char *buffer;
618
619 buffer = kzalloc(ZD1201_RXSIZE, GFP_KERNEL);
620 if (!buffer)
621 return -ENOMEM;
622
623 usb_fill_bulk_urb(zd->rx_urb, zd->usb,
624 usb_rcvbulkpipe(zd->usb, zd->endp_in), buffer, ZD1201_RXSIZE,
625 zd1201_usbrx, zd);
626
627 err = usb_submit_urb(zd->rx_urb, GFP_KERNEL);
628 if (err)
629 goto err_buffer;
630
631 err = zd1201_docmd(zd, ZD1201_CMDCODE_INIT, 0, 0, 0);
632 if (err)
633 goto err_urb;
634
635 err = zd1201_getconfig(zd, ZD1201_RID_CNFMAXTXBUFFERNUMBER, &zdmax,
636 sizeof(__le16));
637 if (err)
638 goto err_urb;
639
640 max = le16_to_cpu(zdmax);
641 for (i=0; i<max; i++) {
642 err = zd1201_docmd(zd, ZD1201_CMDCODE_ALLOC, 1514, 0, 0);
643 if (err)
644 goto err_urb;
645 }
646
647 return 0;
648
649 err_urb:
650 usb_kill_urb(zd->rx_urb);
651 return err;
652 err_buffer:
653 kfree(buffer);
654 return err;
655 }
656
657 /* Magic alert: The firmware doesn't seem to like the MAC state being
658 * toggled in promisc (aka monitor) mode.
659 * (It works a number of times, but will halt eventually)
660 * So we turn it of before disabling and on after enabling if needed.
661 */
662 static int zd1201_enable(struct zd1201 *zd)
663 {
664 int err;
665
666 if (zd->mac_enabled)
667 return 0;
668
669 err = zd1201_docmd(zd, ZD1201_CMDCODE_ENABLE, 0, 0, 0);
670 if (!err)
671 zd->mac_enabled = 1;
672
673 if (zd->monitor)
674 err = zd1201_setconfig16(zd, ZD1201_RID_PROMISCUOUSMODE, 1);
675
676 return err;
677 }
678
679 static int zd1201_disable(struct zd1201 *zd)
680 {
681 int err;
682
683 if (!zd->mac_enabled)
684 return 0;
685 if (zd->monitor) {
686 err = zd1201_setconfig16(zd, ZD1201_RID_PROMISCUOUSMODE, 0);
687 if (err)
688 return err;
689 }
690
691 err = zd1201_docmd(zd, ZD1201_CMDCODE_DISABLE, 0, 0, 0);
692 if (!err)
693 zd->mac_enabled = 0;
694 return err;
695 }
696
697 static int zd1201_mac_reset(struct zd1201 *zd)
698 {
699 if (!zd->mac_enabled)
700 return 0;
701 zd1201_disable(zd);
702 return zd1201_enable(zd);
703 }
704
705 static int zd1201_join(struct zd1201 *zd, char *essid, int essidlen)
706 {
707 int err, val;
708 char buf[IW_ESSID_MAX_SIZE+2];
709
710 err = zd1201_disable(zd);
711 if (err)
712 return err;
713
714 val = ZD1201_CNFAUTHENTICATION_OPENSYSTEM;
715 val |= ZD1201_CNFAUTHENTICATION_SHAREDKEY;
716 err = zd1201_setconfig16(zd, ZD1201_RID_CNFAUTHENTICATION, val);
717 if (err)
718 return err;
719
720 *(__le16 *)buf = cpu_to_le16(essidlen);
721 memcpy(buf+2, essid, essidlen);
722 if (!zd->ap) { /* Normal station */
723 err = zd1201_setconfig(zd, ZD1201_RID_CNFDESIREDSSID, buf,
724 IW_ESSID_MAX_SIZE+2, 1);
725 if (err)
726 return err;
727 } else { /* AP */
728 err = zd1201_setconfig(zd, ZD1201_RID_CNFOWNSSID, buf,
729 IW_ESSID_MAX_SIZE+2, 1);
730 if (err)
731 return err;
732 }
733
734 err = zd1201_setconfig(zd, ZD1201_RID_CNFOWNMACADDR,
735 zd->dev->dev_addr, zd->dev->addr_len, 1);
736 if (err)
737 return err;
738
739 err = zd1201_enable(zd);
740 if (err)
741 return err;
742
743 msleep(100);
744 return 0;
745 }
746
747 static int zd1201_net_open(struct net_device *dev)
748 {
749 struct zd1201 *zd = netdev_priv(dev);
750
751 /* Start MAC with wildcard if no essid set */
752 if (!zd->mac_enabled)
753 zd1201_join(zd, zd->essid, zd->essidlen);
754 netif_start_queue(dev);
755
756 return 0;
757 }
758
759 static int zd1201_net_stop(struct net_device *dev)
760 {
761 netif_stop_queue(dev);
762 return 0;
763 }
764
765 /*
766 RFC 1042 encapsulates Ethernet frames in 802.11 frames
767 by prefixing them with 0xaa, 0xaa, 0x03) followed by a SNAP OID of 0
768 (0x00, 0x00, 0x00). Zd requires an additional padding, copy
769 of ethernet addresses, length of the standard RFC 1042 packet
770 and a command byte (which is nul for tx).
771
772 tx frame (from Wlan NG):
773 RFC 1042:
774 llc 0xAA 0xAA 0x03 (802.2 LLC)
775 snap 0x00 0x00 0x00 (Ethernet encapsulated)
776 type 2 bytes, Ethernet type field
777 payload (minus eth header)
778 Zydas specific:
779 padding 1B if (skb->len+8+1)%64==0
780 Eth MAC addr 12 bytes, Ethernet MAC addresses
781 length 2 bytes, RFC 1042 packet length
782 (llc+snap+type+payload)
783 zd 1 null byte, zd1201 packet type
784 */
785 static netdev_tx_t zd1201_hard_start_xmit(struct sk_buff *skb,
786 struct net_device *dev)
787 {
788 struct zd1201 *zd = netdev_priv(dev);
789 unsigned char *txbuf = zd->txdata;
790 int txbuflen, pad = 0, err;
791 struct urb *urb = zd->tx_urb;
792
793 if (!zd->mac_enabled || zd->monitor) {
794 dev->stats.tx_dropped++;
795 kfree_skb(skb);
796 return NETDEV_TX_OK;
797 }
798 netif_stop_queue(dev);
799
800 txbuflen = skb->len + 8 + 1;
801 if (txbuflen%64 == 0) {
802 pad = 1;
803 txbuflen++;
804 }
805 txbuf[0] = 0xAA;
806 txbuf[1] = 0xAA;
807 txbuf[2] = 0x03;
808 txbuf[3] = 0x00; /* rfc1042 */
809 txbuf[4] = 0x00;
810 txbuf[5] = 0x00;
811
812 skb_copy_from_linear_data_offset(skb, 12, txbuf + 6, skb->len - 12);
813 if (pad)
814 txbuf[skb->len-12+6]=0;
815 skb_copy_from_linear_data(skb, txbuf + skb->len - 12 + 6 + pad, 12);
816 *(__be16*)&txbuf[skb->len+6+pad] = htons(skb->len-12+6);
817 txbuf[txbuflen-1] = 0;
818
819 usb_fill_bulk_urb(urb, zd->usb, usb_sndbulkpipe(zd->usb, zd->endp_out),
820 txbuf, txbuflen, zd1201_usbtx, zd);
821
822 err = usb_submit_urb(zd->tx_urb, GFP_ATOMIC);
823 if (err) {
824 dev->stats.tx_errors++;
825 netif_start_queue(dev);
826 } else {
827 dev->stats.tx_packets++;
828 dev->stats.tx_bytes += skb->len;
829 }
830 kfree_skb(skb);
831
832 return NETDEV_TX_OK;
833 }
834
835 static void zd1201_tx_timeout(struct net_device *dev)
836 {
837 struct zd1201 *zd = netdev_priv(dev);
838
839 if (!zd)
840 return;
841 dev_warn(&zd->usb->dev, "%s: TX timeout, shooting down urb\n",
842 dev->name);
843 usb_unlink_urb(zd->tx_urb);
844 dev->stats.tx_errors++;
845 /* Restart the timeout to quiet the watchdog: */
846 dev->trans_start = jiffies; /* prevent tx timeout */
847 }
848
849 static int zd1201_set_mac_address(struct net_device *dev, void *p)
850 {
851 struct sockaddr *addr = p;
852 struct zd1201 *zd = netdev_priv(dev);
853 int err;
854
855 if (!zd)
856 return -ENODEV;
857
858 err = zd1201_setconfig(zd, ZD1201_RID_CNFOWNMACADDR,
859 addr->sa_data, dev->addr_len, 1);
860 if (err)
861 return err;
862 memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
863
864 return zd1201_mac_reset(zd);
865 }
866
867 static struct iw_statistics *zd1201_get_wireless_stats(struct net_device *dev)
868 {
869 struct zd1201 *zd = netdev_priv(dev);
870
871 return &zd->iwstats;
872 }
873
874 static void zd1201_set_multicast(struct net_device *dev)
875 {
876 struct zd1201 *zd = netdev_priv(dev);
877 struct netdev_hw_addr *ha;
878 unsigned char reqbuf[ETH_ALEN*ZD1201_MAXMULTI];
879 int i;
880
881 if (netdev_mc_count(dev) > ZD1201_MAXMULTI)
882 return;
883
884 i = 0;
885 netdev_for_each_mc_addr(ha, dev)
886 memcpy(reqbuf + i++ * ETH_ALEN, ha->addr, ETH_ALEN);
887 zd1201_setconfig(zd, ZD1201_RID_CNFGROUPADDRESS, reqbuf,
888 netdev_mc_count(dev) * ETH_ALEN, 0);
889 }
890
891 static int zd1201_config_commit(struct net_device *dev,
892 struct iw_request_info *info, struct iw_point *data, char *essid)
893 {
894 struct zd1201 *zd = netdev_priv(dev);
895
896 return zd1201_mac_reset(zd);
897 }
898
899 static int zd1201_get_name(struct net_device *dev,
900 struct iw_request_info *info, char *name, char *extra)
901 {
902 strcpy(name, "IEEE 802.11b");
903 return 0;
904 }
905
906 static int zd1201_set_freq(struct net_device *dev,
907 struct iw_request_info *info, struct iw_freq *freq, char *extra)
908 {
909 struct zd1201 *zd = netdev_priv(dev);
910 short channel = 0;
911 int err;
912
913 if (freq->e == 0)
914 channel = freq->m;
915 else {
916 channel = ieee80211_freq_to_dsss_chan(freq->m);
917 if (channel < 0)
918 channel = 0;
919 }
920
921 err = zd1201_setconfig16(zd, ZD1201_RID_CNFOWNCHANNEL, channel);
922 if (err)
923 return err;
924
925 zd1201_mac_reset(zd);
926
927 return 0;
928 }
929
930 static int zd1201_get_freq(struct net_device *dev,
931 struct iw_request_info *info, struct iw_freq *freq, char *extra)
932 {
933 struct zd1201 *zd = netdev_priv(dev);
934 short channel;
935 int err;
936
937 err = zd1201_getconfig16(zd, ZD1201_RID_CNFOWNCHANNEL, &channel);
938 if (err)
939 return err;
940 freq->e = 0;
941 freq->m = channel;
942
943 return 0;
944 }
945
946 static int zd1201_set_mode(struct net_device *dev,
947 struct iw_request_info *info, __u32 *mode, char *extra)
948 {
949 struct zd1201 *zd = netdev_priv(dev);
950 short porttype, monitor = 0;
951 unsigned char buffer[IW_ESSID_MAX_SIZE+2];
952 int err;
953
954 if (zd->ap) {
955 if (*mode != IW_MODE_MASTER)
956 return -EINVAL;
957 return 0;
958 }
959
960 err = zd1201_setconfig16(zd, ZD1201_RID_PROMISCUOUSMODE, 0);
961 if (err)
962 return err;
963 zd->dev->type = ARPHRD_ETHER;
964 switch(*mode) {
965 case IW_MODE_MONITOR:
966 monitor = 1;
967 zd->dev->type = ARPHRD_IEEE80211;
968 /* Make sure we are no longer associated with by
969 setting an 'impossible' essid.
970 (otherwise we mess up firmware)
971 */
972 zd1201_join(zd, "\0-*#\0", 5);
973 /* Put port in pIBSS */
974 case 8: /* No pseudo-IBSS in wireless extensions (yet) */
975 porttype = ZD1201_PORTTYPE_PSEUDOIBSS;
976 break;
977 case IW_MODE_ADHOC:
978 porttype = ZD1201_PORTTYPE_IBSS;
979 break;
980 case IW_MODE_INFRA:
981 porttype = ZD1201_PORTTYPE_BSS;
982 break;
983 default:
984 return -EINVAL;
985 }
986
987 err = zd1201_setconfig16(zd, ZD1201_RID_CNFPORTTYPE, porttype);
988 if (err)
989 return err;
990 if (zd->monitor && !monitor) {
991 zd1201_disable(zd);
992 *(__le16 *)buffer = cpu_to_le16(zd->essidlen);
993 memcpy(buffer+2, zd->essid, zd->essidlen);
994 err = zd1201_setconfig(zd, ZD1201_RID_CNFDESIREDSSID,
995 buffer, IW_ESSID_MAX_SIZE+2, 1);
996 if (err)
997 return err;
998 }
999 zd->monitor = monitor;
1000 /* If monitor mode is set we don't actually turn it on here since it
1001 * is done during mac reset anyway (see zd1201_mac_enable).
1002 */
1003 zd1201_mac_reset(zd);
1004
1005 return 0;
1006 }
1007
1008 static int zd1201_get_mode(struct net_device *dev,
1009 struct iw_request_info *info, __u32 *mode, char *extra)
1010 {
1011 struct zd1201 *zd = netdev_priv(dev);
1012 short porttype;
1013 int err;
1014
1015 err = zd1201_getconfig16(zd, ZD1201_RID_CNFPORTTYPE, &porttype);
1016 if (err)
1017 return err;
1018 switch(porttype) {
1019 case ZD1201_PORTTYPE_IBSS:
1020 *mode = IW_MODE_ADHOC;
1021 break;
1022 case ZD1201_PORTTYPE_BSS:
1023 *mode = IW_MODE_INFRA;
1024 break;
1025 case ZD1201_PORTTYPE_WDS:
1026 *mode = IW_MODE_REPEAT;
1027 break;
1028 case ZD1201_PORTTYPE_PSEUDOIBSS:
1029 *mode = 8;/* No Pseudo-IBSS... */
1030 break;
1031 case ZD1201_PORTTYPE_AP:
1032 *mode = IW_MODE_MASTER;
1033 break;
1034 default:
1035 dev_dbg(&zd->usb->dev, "Unknown porttype: %d\n",
1036 porttype);
1037 *mode = IW_MODE_AUTO;
1038 }
1039 if (zd->monitor)
1040 *mode = IW_MODE_MONITOR;
1041
1042 return 0;
1043 }
1044
1045 static int zd1201_get_range(struct net_device *dev,
1046 struct iw_request_info *info, struct iw_point *wrq, char *extra)
1047 {
1048 struct iw_range *range = (struct iw_range *)extra;
1049
1050 wrq->length = sizeof(struct iw_range);
1051 memset(range, 0, sizeof(struct iw_range));
1052 range->we_version_compiled = WIRELESS_EXT;
1053 range->we_version_source = WIRELESS_EXT;
1054
1055 range->max_qual.qual = 128;
1056 range->max_qual.level = 128;
1057 range->max_qual.noise = 128;
1058 range->max_qual.updated = 7;
1059
1060 range->encoding_size[0] = 5;
1061 range->encoding_size[1] = 13;
1062 range->num_encoding_sizes = 2;
1063 range->max_encoding_tokens = ZD1201_NUMKEYS;
1064
1065 range->num_bitrates = 4;
1066 range->bitrate[0] = 1000000;
1067 range->bitrate[1] = 2000000;
1068 range->bitrate[2] = 5500000;
1069 range->bitrate[3] = 11000000;
1070
1071 range->min_rts = 0;
1072 range->min_frag = ZD1201_FRAGMIN;
1073 range->max_rts = ZD1201_RTSMAX;
1074 range->min_frag = ZD1201_FRAGMAX;
1075
1076 return 0;
1077 }
1078
1079 /* Little bit of magic here: we only get the quality if we poll
1080 * for it, and we never get an actual request to trigger such
1081 * a poll. Therefore we 'assume' that the user will soon ask for
1082 * the stats after asking the bssid.
1083 */
1084 static int zd1201_get_wap(struct net_device *dev,
1085 struct iw_request_info *info, struct sockaddr *ap_addr, char *extra)
1086 {
1087 struct zd1201 *zd = netdev_priv(dev);
1088 unsigned char buffer[6];
1089
1090 if (!zd1201_getconfig(zd, ZD1201_RID_COMMSQUALITY, buffer, 6)) {
1091 /* Unfortunately the quality and noise reported is useless.
1092 they seem to be accumulators that increase until you
1093 read them, unless we poll on a fixed interval we can't
1094 use them
1095 */
1096 /*zd->iwstats.qual.qual = le16_to_cpu(((__le16 *)buffer)[0]);*/
1097 zd->iwstats.qual.level = le16_to_cpu(((__le16 *)buffer)[1]);
1098 /*zd->iwstats.qual.noise = le16_to_cpu(((__le16 *)buffer)[2]);*/
1099 zd->iwstats.qual.updated = 2;
1100 }
1101
1102 return zd1201_getconfig(zd, ZD1201_RID_CURRENTBSSID, ap_addr->sa_data, 6);
1103 }
1104
1105 static int zd1201_set_scan(struct net_device *dev,
1106 struct iw_request_info *info, struct iw_point *srq, char *extra)
1107 {
1108 /* We do everything in get_scan */
1109 return 0;
1110 }
1111
1112 static int zd1201_get_scan(struct net_device *dev,
1113 struct iw_request_info *info, struct iw_point *srq, char *extra)
1114 {
1115 struct zd1201 *zd = netdev_priv(dev);
1116 int err, i, j, enabled_save;
1117 struct iw_event iwe;
1118 char *cev = extra;
1119 char *end_buf = extra + IW_SCAN_MAX_DATA;
1120
1121 /* No scanning in AP mode */
1122 if (zd->ap)
1123 return -EOPNOTSUPP;
1124
1125 /* Scan doesn't seem to work if disabled */
1126 enabled_save = zd->mac_enabled;
1127 zd1201_enable(zd);
1128
1129 zd->rxdatas = 0;
1130 err = zd1201_docmd(zd, ZD1201_CMDCODE_INQUIRE,
1131 ZD1201_INQ_SCANRESULTS, 0, 0);
1132 if (err)
1133 return err;
1134
1135 wait_event_interruptible(zd->rxdataq, zd->rxdatas);
1136 if (!zd->rxlen)
1137 return -EIO;
1138
1139 if (le16_to_cpu(*(__le16*)&zd->rxdata[2]) != ZD1201_INQ_SCANRESULTS)
1140 return -EIO;
1141
1142 for(i=8; i<zd->rxlen; i+=62) {
1143 iwe.cmd = SIOCGIWAP;
1144 iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
1145 memcpy(iwe.u.ap_addr.sa_data, zd->rxdata+i+6, 6);
1146 cev = iwe_stream_add_event(info, cev, end_buf,
1147 &iwe, IW_EV_ADDR_LEN);
1148
1149 iwe.cmd = SIOCGIWESSID;
1150 iwe.u.data.length = zd->rxdata[i+16];
1151 iwe.u.data.flags = 1;
1152 cev = iwe_stream_add_point(info, cev, end_buf,
1153 &iwe, zd->rxdata+i+18);
1154
1155 iwe.cmd = SIOCGIWMODE;
1156 if (zd->rxdata[i+14]&0x01)
1157 iwe.u.mode = IW_MODE_MASTER;
1158 else
1159 iwe.u.mode = IW_MODE_ADHOC;
1160 cev = iwe_stream_add_event(info, cev, end_buf,
1161 &iwe, IW_EV_UINT_LEN);
1162
1163 iwe.cmd = SIOCGIWFREQ;
1164 iwe.u.freq.m = zd->rxdata[i+0];
1165 iwe.u.freq.e = 0;
1166 cev = iwe_stream_add_event(info, cev, end_buf,
1167 &iwe, IW_EV_FREQ_LEN);
1168
1169 iwe.cmd = SIOCGIWRATE;
1170 iwe.u.bitrate.fixed = 0;
1171 iwe.u.bitrate.disabled = 0;
1172 for (j=0; j<10; j++) if (zd->rxdata[i+50+j]) {
1173 iwe.u.bitrate.value = (zd->rxdata[i+50+j]&0x7f)*500000;
1174 cev = iwe_stream_add_event(info, cev, end_buf,
1175 &iwe, IW_EV_PARAM_LEN);
1176 }
1177
1178 iwe.cmd = SIOCGIWENCODE;
1179 iwe.u.data.length = 0;
1180 if (zd->rxdata[i+14]&0x10)
1181 iwe.u.data.flags = IW_ENCODE_ENABLED;
1182 else
1183 iwe.u.data.flags = IW_ENCODE_DISABLED;
1184 cev = iwe_stream_add_point(info, cev, end_buf, &iwe, NULL);
1185
1186 iwe.cmd = IWEVQUAL;
1187 iwe.u.qual.qual = zd->rxdata[i+4];
1188 iwe.u.qual.noise= zd->rxdata[i+2]/10-100;
1189 iwe.u.qual.level = (256+zd->rxdata[i+4]*100)/255-100;
1190 iwe.u.qual.updated = 7;
1191 cev = iwe_stream_add_event(info, cev, end_buf,
1192 &iwe, IW_EV_QUAL_LEN);
1193 }
1194
1195 if (!enabled_save)
1196 zd1201_disable(zd);
1197
1198 srq->length = cev - extra;
1199 srq->flags = 0;
1200
1201 return 0;
1202 }
1203
1204 static int zd1201_set_essid(struct net_device *dev,
1205 struct iw_request_info *info, struct iw_point *data, char *essid)
1206 {
1207 struct zd1201 *zd = netdev_priv(dev);
1208
1209 if (data->length > IW_ESSID_MAX_SIZE)
1210 return -EINVAL;
1211 if (data->length < 1)
1212 data->length = 1;
1213 zd->essidlen = data->length;
1214 memset(zd->essid, 0, IW_ESSID_MAX_SIZE+1);
1215 memcpy(zd->essid, essid, data->length);
1216 return zd1201_join(zd, zd->essid, zd->essidlen);
1217 }
1218
1219 static int zd1201_get_essid(struct net_device *dev,
1220 struct iw_request_info *info, struct iw_point *data, char *essid)
1221 {
1222 struct zd1201 *zd = netdev_priv(dev);
1223
1224 memcpy(essid, zd->essid, zd->essidlen);
1225 data->flags = 1;
1226 data->length = zd->essidlen;
1227
1228 return 0;
1229 }
1230
1231 static int zd1201_get_nick(struct net_device *dev, struct iw_request_info *info,
1232 struct iw_point *data, char *nick)
1233 {
1234 strcpy(nick, "zd1201");
1235 data->flags = 1;
1236 data->length = strlen(nick);
1237 return 0;
1238 }
1239
1240 static int zd1201_set_rate(struct net_device *dev,
1241 struct iw_request_info *info, struct iw_param *rrq, char *extra)
1242 {
1243 struct zd1201 *zd = netdev_priv(dev);
1244 short rate;
1245 int err;
1246
1247 switch (rrq->value) {
1248 case 1000000:
1249 rate = ZD1201_RATEB1;
1250 break;
1251 case 2000000:
1252 rate = ZD1201_RATEB2;
1253 break;
1254 case 5500000:
1255 rate = ZD1201_RATEB5;
1256 break;
1257 case 11000000:
1258 default:
1259 rate = ZD1201_RATEB11;
1260 break;
1261 }
1262 if (!rrq->fixed) { /* Also enable all lower bitrates */
1263 rate |= rate-1;
1264 }
1265
1266 err = zd1201_setconfig16(zd, ZD1201_RID_TXRATECNTL, rate);
1267 if (err)
1268 return err;
1269
1270 return zd1201_mac_reset(zd);
1271 }
1272
1273 static int zd1201_get_rate(struct net_device *dev,
1274 struct iw_request_info *info, struct iw_param *rrq, char *extra)
1275 {
1276 struct zd1201 *zd = netdev_priv(dev);
1277 short rate;
1278 int err;
1279
1280 err = zd1201_getconfig16(zd, ZD1201_RID_CURRENTTXRATE, &rate);
1281 if (err)
1282 return err;
1283
1284 switch(rate) {
1285 case 1:
1286 rrq->value = 1000000;
1287 break;
1288 case 2:
1289 rrq->value = 2000000;
1290 break;
1291 case 5:
1292 rrq->value = 5500000;
1293 break;
1294 case 11:
1295 rrq->value = 11000000;
1296 break;
1297 default:
1298 rrq->value = 0;
1299 }
1300 rrq->fixed = 0;
1301 rrq->disabled = 0;
1302
1303 return 0;
1304 }
1305
1306 static int zd1201_set_rts(struct net_device *dev, struct iw_request_info *info,
1307 struct iw_param *rts, char *extra)
1308 {
1309 struct zd1201 *zd = netdev_priv(dev);
1310 int err;
1311 short val = rts->value;
1312
1313 if (rts->disabled || !rts->fixed)
1314 val = ZD1201_RTSMAX;
1315 if (val > ZD1201_RTSMAX)
1316 return -EINVAL;
1317 if (val < 0)
1318 return -EINVAL;
1319
1320 err = zd1201_setconfig16(zd, ZD1201_RID_CNFRTSTHRESHOLD, val);
1321 if (err)
1322 return err;
1323 return zd1201_mac_reset(zd);
1324 }
1325
1326 static int zd1201_get_rts(struct net_device *dev, struct iw_request_info *info,
1327 struct iw_param *rts, char *extra)
1328 {
1329 struct zd1201 *zd = netdev_priv(dev);
1330 short rtst;
1331 int err;
1332
1333 err = zd1201_getconfig16(zd, ZD1201_RID_CNFRTSTHRESHOLD, &rtst);
1334 if (err)
1335 return err;
1336 rts->value = rtst;
1337 rts->disabled = (rts->value == ZD1201_RTSMAX);
1338 rts->fixed = 1;
1339
1340 return 0;
1341 }
1342
1343 static int zd1201_set_frag(struct net_device *dev, struct iw_request_info *info,
1344 struct iw_param *frag, char *extra)
1345 {
1346 struct zd1201 *zd = netdev_priv(dev);
1347 int err;
1348 short val = frag->value;
1349
1350 if (frag->disabled || !frag->fixed)
1351 val = ZD1201_FRAGMAX;
1352 if (val > ZD1201_FRAGMAX)
1353 return -EINVAL;
1354 if (val < ZD1201_FRAGMIN)
1355 return -EINVAL;
1356 if (val & 1)
1357 return -EINVAL;
1358 err = zd1201_setconfig16(zd, ZD1201_RID_CNFFRAGTHRESHOLD, val);
1359 if (err)
1360 return err;
1361 return zd1201_mac_reset(zd);
1362 }
1363
1364 static int zd1201_get_frag(struct net_device *dev, struct iw_request_info *info,
1365 struct iw_param *frag, char *extra)
1366 {
1367 struct zd1201 *zd = netdev_priv(dev);
1368 short fragt;
1369 int err;
1370
1371 err = zd1201_getconfig16(zd, ZD1201_RID_CNFFRAGTHRESHOLD, &fragt);
1372 if (err)
1373 return err;
1374 frag->value = fragt;
1375 frag->disabled = (frag->value == ZD1201_FRAGMAX);
1376 frag->fixed = 1;
1377
1378 return 0;
1379 }
1380
1381 static int zd1201_set_retry(struct net_device *dev,
1382 struct iw_request_info *info, struct iw_param *rrq, char *extra)
1383 {
1384 return 0;
1385 }
1386
1387 static int zd1201_get_retry(struct net_device *dev,
1388 struct iw_request_info *info, struct iw_param *rrq, char *extra)
1389 {
1390 return 0;
1391 }
1392
1393 static int zd1201_set_encode(struct net_device *dev,
1394 struct iw_request_info *info, struct iw_point *erq, char *key)
1395 {
1396 struct zd1201 *zd = netdev_priv(dev);
1397 short i;
1398 int err, rid;
1399
1400 if (erq->length > ZD1201_MAXKEYLEN)
1401 return -EINVAL;
1402
1403 i = (erq->flags & IW_ENCODE_INDEX)-1;
1404 if (i == -1) {
1405 err = zd1201_getconfig16(zd,ZD1201_RID_CNFDEFAULTKEYID,&i);
1406 if (err)
1407 return err;
1408 } else {
1409 err = zd1201_setconfig16(zd, ZD1201_RID_CNFDEFAULTKEYID, i);
1410 if (err)
1411 return err;
1412 }
1413
1414 if (i < 0 || i >= ZD1201_NUMKEYS)
1415 return -EINVAL;
1416
1417 rid = ZD1201_RID_CNFDEFAULTKEY0 + i;
1418 err = zd1201_setconfig(zd, rid, key, erq->length, 1);
1419 if (err)
1420 return err;
1421 zd->encode_keylen[i] = erq->length;
1422 memcpy(zd->encode_keys[i], key, erq->length);
1423
1424 i=0;
1425 if (!(erq->flags & IW_ENCODE_DISABLED & IW_ENCODE_MODE)) {
1426 i |= 0x01;
1427 zd->encode_enabled = 1;
1428 } else
1429 zd->encode_enabled = 0;
1430 if (erq->flags & IW_ENCODE_RESTRICTED & IW_ENCODE_MODE) {
1431 i |= 0x02;
1432 zd->encode_restricted = 1;
1433 } else
1434 zd->encode_restricted = 0;
1435 err = zd1201_setconfig16(zd, ZD1201_RID_CNFWEBFLAGS, i);
1436 if (err)
1437 return err;
1438
1439 if (zd->encode_enabled)
1440 i = ZD1201_CNFAUTHENTICATION_SHAREDKEY;
1441 else
1442 i = ZD1201_CNFAUTHENTICATION_OPENSYSTEM;
1443 err = zd1201_setconfig16(zd, ZD1201_RID_CNFAUTHENTICATION, i);
1444 if (err)
1445 return err;
1446
1447 return zd1201_mac_reset(zd);
1448 }
1449
1450 static int zd1201_get_encode(struct net_device *dev,
1451 struct iw_request_info *info, struct iw_point *erq, char *key)
1452 {
1453 struct zd1201 *zd = netdev_priv(dev);
1454 short i;
1455 int err;
1456
1457 if (zd->encode_enabled)
1458 erq->flags = IW_ENCODE_ENABLED;
1459 else
1460 erq->flags = IW_ENCODE_DISABLED;
1461 if (zd->encode_restricted)
1462 erq->flags |= IW_ENCODE_RESTRICTED;
1463 else
1464 erq->flags |= IW_ENCODE_OPEN;
1465
1466 i = (erq->flags & IW_ENCODE_INDEX) -1;
1467 if (i == -1) {
1468 err = zd1201_getconfig16(zd, ZD1201_RID_CNFDEFAULTKEYID, &i);
1469 if (err)
1470 return err;
1471 }
1472 if (i<0 || i>= ZD1201_NUMKEYS)
1473 return -EINVAL;
1474
1475 erq->flags |= i+1;
1476
1477 erq->length = zd->encode_keylen[i];
1478 memcpy(key, zd->encode_keys[i], erq->length);
1479
1480 return 0;
1481 }
1482
1483 static int zd1201_set_power(struct net_device *dev,
1484 struct iw_request_info *info, struct iw_param *vwrq, char *extra)
1485 {
1486 struct zd1201 *zd = netdev_priv(dev);
1487 short enabled, duration, level;
1488 int err;
1489
1490 enabled = vwrq->disabled ? 0 : 1;
1491 if (enabled) {
1492 if (vwrq->flags & IW_POWER_PERIOD) {
1493 duration = vwrq->value;
1494 err = zd1201_setconfig16(zd,
1495 ZD1201_RID_CNFMAXSLEEPDURATION, duration);
1496 if (err)
1497 return err;
1498 goto out;
1499 }
1500 if (vwrq->flags & IW_POWER_TIMEOUT) {
1501 err = zd1201_getconfig16(zd,
1502 ZD1201_RID_CNFMAXSLEEPDURATION, &duration);
1503 if (err)
1504 return err;
1505 level = vwrq->value * 4 / duration;
1506 if (level > 4)
1507 level = 4;
1508 if (level < 0)
1509 level = 0;
1510 err = zd1201_setconfig16(zd, ZD1201_RID_CNFPMEPS,
1511 level);
1512 if (err)
1513 return err;
1514 goto out;
1515 }
1516 return -EINVAL;
1517 }
1518 out:
1519 return zd1201_setconfig16(zd, ZD1201_RID_CNFPMENABLED, enabled);
1520 }
1521
1522 static int zd1201_get_power(struct net_device *dev,
1523 struct iw_request_info *info, struct iw_param *vwrq, char *extra)
1524 {
1525 struct zd1201 *zd = netdev_priv(dev);
1526 short enabled, level, duration;
1527 int err;
1528
1529 err = zd1201_getconfig16(zd, ZD1201_RID_CNFPMENABLED, &enabled);
1530 if (err)
1531 return err;
1532 err = zd1201_getconfig16(zd, ZD1201_RID_CNFPMEPS, &level);
1533 if (err)
1534 return err;
1535 err = zd1201_getconfig16(zd, ZD1201_RID_CNFMAXSLEEPDURATION, &duration);
1536 if (err)
1537 return err;
1538 vwrq->disabled = enabled ? 0 : 1;
1539 if (vwrq->flags & IW_POWER_TYPE) {
1540 if (vwrq->flags & IW_POWER_PERIOD) {
1541 vwrq->value = duration;
1542 vwrq->flags = IW_POWER_PERIOD;
1543 } else {
1544 vwrq->value = duration * level / 4;
1545 vwrq->flags = IW_POWER_TIMEOUT;
1546 }
1547 }
1548 if (vwrq->flags & IW_POWER_MODE) {
1549 if (enabled && level)
1550 vwrq->flags = IW_POWER_UNICAST_R;
1551 else
1552 vwrq->flags = IW_POWER_ALL_R;
1553 }
1554
1555 return 0;
1556 }
1557
1558
1559 static const iw_handler zd1201_iw_handler[] =
1560 {
1561 (iw_handler) zd1201_config_commit, /* SIOCSIWCOMMIT */
1562 (iw_handler) zd1201_get_name, /* SIOCGIWNAME */
1563 (iw_handler) NULL, /* SIOCSIWNWID */
1564 (iw_handler) NULL, /* SIOCGIWNWID */
1565 (iw_handler) zd1201_set_freq, /* SIOCSIWFREQ */
1566 (iw_handler) zd1201_get_freq, /* SIOCGIWFREQ */
1567 (iw_handler) zd1201_set_mode, /* SIOCSIWMODE */
1568 (iw_handler) zd1201_get_mode, /* SIOCGIWMODE */
1569 (iw_handler) NULL, /* SIOCSIWSENS */
1570 (iw_handler) NULL, /* SIOCGIWSENS */
1571 (iw_handler) NULL, /* SIOCSIWRANGE */
1572 (iw_handler) zd1201_get_range, /* SIOCGIWRANGE */
1573 (iw_handler) NULL, /* SIOCSIWPRIV */
1574 (iw_handler) NULL, /* SIOCGIWPRIV */
1575 (iw_handler) NULL, /* SIOCSIWSTATS */
1576 (iw_handler) NULL, /* SIOCGIWSTATS */
1577 (iw_handler) NULL, /* SIOCSIWSPY */
1578 (iw_handler) NULL, /* SIOCGIWSPY */
1579 (iw_handler) NULL, /* -- hole -- */
1580 (iw_handler) NULL, /* -- hole -- */
1581 (iw_handler) NULL/*zd1201_set_wap*/, /* SIOCSIWAP */
1582 (iw_handler) zd1201_get_wap, /* SIOCGIWAP */
1583 (iw_handler) NULL, /* -- hole -- */
1584 (iw_handler) NULL, /* SIOCGIWAPLIST */
1585 (iw_handler) zd1201_set_scan, /* SIOCSIWSCAN */
1586 (iw_handler) zd1201_get_scan, /* SIOCGIWSCAN */
1587 (iw_handler) zd1201_set_essid, /* SIOCSIWESSID */
1588 (iw_handler) zd1201_get_essid, /* SIOCGIWESSID */
1589 (iw_handler) NULL, /* SIOCSIWNICKN */
1590 (iw_handler) zd1201_get_nick, /* SIOCGIWNICKN */
1591 (iw_handler) NULL, /* -- hole -- */
1592 (iw_handler) NULL, /* -- hole -- */
1593 (iw_handler) zd1201_set_rate, /* SIOCSIWRATE */
1594 (iw_handler) zd1201_get_rate, /* SIOCGIWRATE */
1595 (iw_handler) zd1201_set_rts, /* SIOCSIWRTS */
1596 (iw_handler) zd1201_get_rts, /* SIOCGIWRTS */
1597 (iw_handler) zd1201_set_frag, /* SIOCSIWFRAG */
1598 (iw_handler) zd1201_get_frag, /* SIOCGIWFRAG */
1599 (iw_handler) NULL, /* SIOCSIWTXPOW */
1600 (iw_handler) NULL, /* SIOCGIWTXPOW */
1601 (iw_handler) zd1201_set_retry, /* SIOCSIWRETRY */
1602 (iw_handler) zd1201_get_retry, /* SIOCGIWRETRY */
1603 (iw_handler) zd1201_set_encode, /* SIOCSIWENCODE */
1604 (iw_handler) zd1201_get_encode, /* SIOCGIWENCODE */
1605 (iw_handler) zd1201_set_power, /* SIOCSIWPOWER */
1606 (iw_handler) zd1201_get_power, /* SIOCGIWPOWER */
1607 };
1608
1609 static int zd1201_set_hostauth(struct net_device *dev,
1610 struct iw_request_info *info, struct iw_param *rrq, char *extra)
1611 {
1612 struct zd1201 *zd = netdev_priv(dev);
1613
1614 if (!zd->ap)
1615 return -EOPNOTSUPP;
1616
1617 return zd1201_setconfig16(zd, ZD1201_RID_CNFHOSTAUTH, rrq->value);
1618 }
1619
1620 static int zd1201_get_hostauth(struct net_device *dev,
1621 struct iw_request_info *info, struct iw_param *rrq, char *extra)
1622 {
1623 struct zd1201 *zd = netdev_priv(dev);
1624 short hostauth;
1625 int err;
1626
1627 if (!zd->ap)
1628 return -EOPNOTSUPP;
1629
1630 err = zd1201_getconfig16(zd, ZD1201_RID_CNFHOSTAUTH, &hostauth);
1631 if (err)
1632 return err;
1633 rrq->value = hostauth;
1634 rrq->fixed = 1;
1635
1636 return 0;
1637 }
1638
1639 static int zd1201_auth_sta(struct net_device *dev,
1640 struct iw_request_info *info, struct sockaddr *sta, char *extra)
1641 {
1642 struct zd1201 *zd = netdev_priv(dev);
1643 unsigned char buffer[10];
1644
1645 if (!zd->ap)
1646 return -EOPNOTSUPP;
1647
1648 memcpy(buffer, sta->sa_data, ETH_ALEN);
1649 *(short*)(buffer+6) = 0; /* 0==success, 1==failure */
1650 *(short*)(buffer+8) = 0;
1651
1652 return zd1201_setconfig(zd, ZD1201_RID_AUTHENTICATESTA, buffer, 10, 1);
1653 }
1654
1655 static int zd1201_set_maxassoc(struct net_device *dev,
1656 struct iw_request_info *info, struct iw_param *rrq, char *extra)
1657 {
1658 struct zd1201 *zd = netdev_priv(dev);
1659 int err;
1660
1661 if (!zd->ap)
1662 return -EOPNOTSUPP;
1663
1664 err = zd1201_setconfig16(zd, ZD1201_RID_CNFMAXASSOCSTATIONS, rrq->value);
1665 if (err)
1666 return err;
1667 return 0;
1668 }
1669
1670 static int zd1201_get_maxassoc(struct net_device *dev,
1671 struct iw_request_info *info, struct iw_param *rrq, char *extra)
1672 {
1673 struct zd1201 *zd = netdev_priv(dev);
1674 short maxassoc;
1675 int err;
1676
1677 if (!zd->ap)
1678 return -EOPNOTSUPP;
1679
1680 err = zd1201_getconfig16(zd, ZD1201_RID_CNFMAXASSOCSTATIONS, &maxassoc);
1681 if (err)
1682 return err;
1683 rrq->value = maxassoc;
1684 rrq->fixed = 1;
1685
1686 return 0;
1687 }
1688
1689 static const iw_handler zd1201_private_handler[] = {
1690 (iw_handler) zd1201_set_hostauth, /* ZD1201SIWHOSTAUTH */
1691 (iw_handler) zd1201_get_hostauth, /* ZD1201GIWHOSTAUTH */
1692 (iw_handler) zd1201_auth_sta, /* ZD1201SIWAUTHSTA */
1693 (iw_handler) NULL, /* nothing to get */
1694 (iw_handler) zd1201_set_maxassoc, /* ZD1201SIMAXASSOC */
1695 (iw_handler) zd1201_get_maxassoc, /* ZD1201GIMAXASSOC */
1696 };
1697
1698 static const struct iw_priv_args zd1201_private_args[] = {
1699 { ZD1201SIWHOSTAUTH, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
1700 IW_PRIV_TYPE_NONE, "sethostauth" },
1701 { ZD1201GIWHOSTAUTH, IW_PRIV_TYPE_NONE,
1702 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "gethostauth" },
1703 { ZD1201SIWAUTHSTA, IW_PRIV_TYPE_ADDR | IW_PRIV_SIZE_FIXED | 1,
1704 IW_PRIV_TYPE_NONE, "authstation" },
1705 { ZD1201SIWMAXASSOC, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
1706 IW_PRIV_TYPE_NONE, "setmaxassoc" },
1707 { ZD1201GIWMAXASSOC, IW_PRIV_TYPE_NONE,
1708 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getmaxassoc" },
1709 };
1710
1711 static const struct iw_handler_def zd1201_iw_handlers = {
1712 .num_standard = ARRAY_SIZE(zd1201_iw_handler),
1713 .num_private = ARRAY_SIZE(zd1201_private_handler),
1714 .num_private_args = ARRAY_SIZE(zd1201_private_args),
1715 .standard = (iw_handler *)zd1201_iw_handler,
1716 .private = (iw_handler *)zd1201_private_handler,
1717 .private_args = (struct iw_priv_args *) zd1201_private_args,
1718 .get_wireless_stats = zd1201_get_wireless_stats,
1719 };
1720
1721 static const struct net_device_ops zd1201_netdev_ops = {
1722 .ndo_open = zd1201_net_open,
1723 .ndo_stop = zd1201_net_stop,
1724 .ndo_start_xmit = zd1201_hard_start_xmit,
1725 .ndo_tx_timeout = zd1201_tx_timeout,
1726 .ndo_set_rx_mode = zd1201_set_multicast,
1727 .ndo_set_mac_address = zd1201_set_mac_address,
1728 .ndo_change_mtu = eth_change_mtu,
1729 .ndo_validate_addr = eth_validate_addr,
1730 };
1731
1732 static int zd1201_probe(struct usb_interface *interface,
1733 const struct usb_device_id *id)
1734 {
1735 struct zd1201 *zd;
1736 struct net_device *dev;
1737 struct usb_device *usb;
1738 int err;
1739 short porttype;
1740 char buf[IW_ESSID_MAX_SIZE+2];
1741
1742 usb = interface_to_usbdev(interface);
1743
1744 dev = alloc_etherdev(sizeof(*zd));
1745 if (!dev)
1746 return -ENOMEM;
1747 zd = netdev_priv(dev);
1748 zd->dev = dev;
1749
1750 zd->ap = ap;
1751 zd->usb = usb;
1752 zd->removed = 0;
1753 init_waitqueue_head(&zd->rxdataq);
1754 INIT_HLIST_HEAD(&zd->fraglist);
1755
1756 err = zd1201_fw_upload(usb, zd->ap);
1757 if (err) {
1758 dev_err(&usb->dev, "zd1201 firmware upload failed: %d\n", err);
1759 goto err_zd;
1760 }
1761
1762 zd->endp_in = 1;
1763 zd->endp_out = 1;
1764 zd->endp_out2 = 2;
1765 zd->rx_urb = usb_alloc_urb(0, GFP_KERNEL);
1766 zd->tx_urb = usb_alloc_urb(0, GFP_KERNEL);
1767 if (!zd->rx_urb || !zd->tx_urb)
1768 goto err_zd;
1769
1770 mdelay(100);
1771 err = zd1201_drvr_start(zd);
1772 if (err)
1773 goto err_zd;
1774
1775 err = zd1201_setconfig16(zd, ZD1201_RID_CNFMAXDATALEN, 2312);
1776 if (err)
1777 goto err_start;
1778
1779 err = zd1201_setconfig16(zd, ZD1201_RID_TXRATECNTL,
1780 ZD1201_RATEB1 | ZD1201_RATEB2 | ZD1201_RATEB5 | ZD1201_RATEB11);
1781 if (err)
1782 goto err_start;
1783
1784 dev->netdev_ops = &zd1201_netdev_ops;
1785 dev->wireless_handlers = &zd1201_iw_handlers;
1786 dev->watchdog_timeo = ZD1201_TX_TIMEOUT;
1787 strcpy(dev->name, "wlan%d");
1788
1789 err = zd1201_getconfig(zd, ZD1201_RID_CNFOWNMACADDR,
1790 dev->dev_addr, dev->addr_len);
1791 if (err)
1792 goto err_start;
1793
1794 /* Set wildcard essid to match zd->essid */
1795 *(__le16 *)buf = cpu_to_le16(0);
1796 err = zd1201_setconfig(zd, ZD1201_RID_CNFDESIREDSSID, buf,
1797 IW_ESSID_MAX_SIZE+2, 1);
1798 if (err)
1799 goto err_start;
1800
1801 if (zd->ap)
1802 porttype = ZD1201_PORTTYPE_AP;
1803 else
1804 porttype = ZD1201_PORTTYPE_BSS;
1805 err = zd1201_setconfig16(zd, ZD1201_RID_CNFPORTTYPE, porttype);
1806 if (err)
1807 goto err_start;
1808
1809 SET_NETDEV_DEV(dev, &usb->dev);
1810
1811 err = register_netdev(dev);
1812 if (err)
1813 goto err_start;
1814 dev_info(&usb->dev, "%s: ZD1201 USB Wireless interface\n",
1815 dev->name);
1816
1817 usb_set_intfdata(interface, zd);
1818 zd1201_enable(zd); /* zd1201 likes to startup enabled, */
1819 zd1201_disable(zd); /* interfering with all the wifis in range */
1820 return 0;
1821
1822 err_start:
1823 /* Leave the device in reset state */
1824 zd1201_docmd(zd, ZD1201_CMDCODE_INIT, 0, 0, 0);
1825 err_zd:
1826 usb_free_urb(zd->tx_urb);
1827 usb_free_urb(zd->rx_urb);
1828 free_netdev(dev);
1829 return err;
1830 }
1831
1832 static void zd1201_disconnect(struct usb_interface *interface)
1833 {
1834 struct zd1201 *zd = usb_get_intfdata(interface);
1835 struct hlist_node *node2;
1836 struct zd1201_frag *frag;
1837
1838 if (!zd)
1839 return;
1840 usb_set_intfdata(interface, NULL);
1841
1842 hlist_for_each_entry_safe(frag, node2, &zd->fraglist, fnode) {
1843 hlist_del_init(&frag->fnode);
1844 kfree_skb(frag->skb);
1845 kfree(frag);
1846 }
1847
1848 if (zd->tx_urb) {
1849 usb_kill_urb(zd->tx_urb);
1850 usb_free_urb(zd->tx_urb);
1851 }
1852 if (zd->rx_urb) {
1853 usb_kill_urb(zd->rx_urb);
1854 usb_free_urb(zd->rx_urb);
1855 }
1856
1857 if (zd->dev) {
1858 unregister_netdev(zd->dev);
1859 free_netdev(zd->dev);
1860 }
1861 }
1862
1863 #ifdef CONFIG_PM
1864
1865 static int zd1201_suspend(struct usb_interface *interface,
1866 pm_message_t message)
1867 {
1868 struct zd1201 *zd = usb_get_intfdata(interface);
1869
1870 netif_device_detach(zd->dev);
1871
1872 zd->was_enabled = zd->mac_enabled;
1873
1874 if (zd->was_enabled)
1875 return zd1201_disable(zd);
1876 else
1877 return 0;
1878 }
1879
1880 static int zd1201_resume(struct usb_interface *interface)
1881 {
1882 struct zd1201 *zd = usb_get_intfdata(interface);
1883
1884 if (!zd || !zd->dev)
1885 return -ENODEV;
1886
1887 netif_device_attach(zd->dev);
1888
1889 if (zd->was_enabled)
1890 return zd1201_enable(zd);
1891 else
1892 return 0;
1893 }
1894
1895 #else
1896
1897 #define zd1201_suspend NULL
1898 #define zd1201_resume NULL
1899
1900 #endif
1901
1902 static struct usb_driver zd1201_usb = {
1903 .name = "zd1201",
1904 .probe = zd1201_probe,
1905 .disconnect = zd1201_disconnect,
1906 .id_table = zd1201_table,
1907 .suspend = zd1201_suspend,
1908 .resume = zd1201_resume,
1909 .disable_hub_initiated_lpm = 1,
1910 };
1911
1912 module_usb_driver(zd1201_usb);
Linux kernel - Deliverables
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