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net: use netdev_mc_count and netdev_mc_empty when appropriate
[linux-2.6.git] / drivers / net / wireless / zd1201.c
blob5d2b52f4717fc0cb0ad76e8d954a7ad5aabbda10
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/netdevice.h>
18 #include <linux/etherdevice.h>
19 #include <linux/wireless.h>
20 #include <linux/ieee80211.h>
21 #include <net/iw_handler.h>
22 #include <linux/string.h>
23 #include <linux/if_arp.h>
24 #include <linux/firmware.h>
25 #include "zd1201.h"
26
27 static struct usb_device_id zd1201_table[] = {
28 {USB_DEVICE(0x0586, 0x3400)}, /* Peabird Wireless USB Adapter */
29 {USB_DEVICE(0x0ace, 0x1201)}, /* ZyDAS ZD1201 Wireless USB Adapter */
30 {USB_DEVICE(0x050d, 0x6051)}, /* Belkin F5D6051 usb adapter */
31 {USB_DEVICE(0x0db0, 0x6823)}, /* MSI UB11B usb adapter */
32 {USB_DEVICE(0x1044, 0x8005)}, /* GIGABYTE GN-WLBZ201 usb adapter */
33 {}
34 };
35
36 static int ap; /* Are we an AP or a normal station? */
37
38 #define ZD1201_VERSION "0.15"
39
40 MODULE_AUTHOR("Jeroen Vreeken <pe1rxq@amsat.org>");
41 MODULE_DESCRIPTION("Driver for ZyDAS ZD1201 based USB Wireless adapters");
42 MODULE_VERSION(ZD1201_VERSION);
43 MODULE_LICENSE("GPL");
44 module_param(ap, int, 0);
45 MODULE_PARM_DESC(ap, "If non-zero Access Point firmware will be loaded");
46 MODULE_DEVICE_TABLE(usb, zd1201_table);
47
48
49 static int zd1201_fw_upload(struct usb_device *dev, int apfw)
50 {
51 const struct firmware *fw_entry;
52 const char *data;
53 unsigned long len;
54 int err;
55 unsigned char ret;
56 char *buf;
57 char *fwfile;
58
59 if (apfw)
60 fwfile = "zd1201-ap.fw";
61 else
62 fwfile = "zd1201.fw";
63
64 err = request_firmware(&fw_entry, fwfile, &dev->dev);
65 if (err) {
66 dev_err(&dev->dev, "Failed to load %s firmware file!\n", fwfile);
67 dev_err(&dev->dev, "Make sure the hotplug firmware loader is installed.\n");
68 dev_err(&dev->dev, "Goto http://linux-lc100020.sourceforge.net for more info.\n");
69 return err;
70 }
71
72 data = fw_entry->data;
73 len = fw_entry->size;
74
75 buf = kmalloc(1024, GFP_ATOMIC);
76 if (!buf)
77 goto exit;
78
79 while (len > 0) {
80 int translen = (len > 1024) ? 1024 : len;
81 memcpy(buf, data, translen);
82
83 err = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), 0,
84 USB_DIR_OUT | 0x40, 0, 0, buf, translen,
85 ZD1201_FW_TIMEOUT);
86 if (err < 0)
87 goto exit;
88
89 len -= translen;
90 data += translen;
91 }
92
93 err = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), 0x2,
94 USB_DIR_OUT | 0x40, 0, 0, NULL, 0, ZD1201_FW_TIMEOUT);
95 if (err < 0)
96 goto exit;
97
98 err = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), 0x4,
99 USB_DIR_IN | 0x40, 0,0, &ret, sizeof(ret), ZD1201_FW_TIMEOUT);
100 if (err < 0)
101 goto exit;
102
103 if (ret & 0x80) {
104 err = -EIO;
105 goto exit;
106 }
107
108 err = 0;
109 exit:
110 kfree(buf);
111 release_firmware(fw_entry);
112 return err;
113 }
114
115 MODULE_FIRMWARE("zd1201-ap.fw");
116 MODULE_FIRMWARE("zd1201.fw");
117
118 static void zd1201_usbfree(struct urb *urb)
119 {
120 struct zd1201 *zd = urb->context;
121
122 switch(urb->status) {
123 case -EILSEQ:
124 case -ENODEV:
125 case -ETIME:
126 case -ENOENT:
127 case -EPIPE:
128 case -EOVERFLOW:
129 case -ESHUTDOWN:
130 dev_warn(&zd->usb->dev, "%s: urb failed: %d\n",
131 zd->dev->name, urb->status);
132 }
133
134 kfree(urb->transfer_buffer);
135 usb_free_urb(urb);
136 return;
137 }
138
139 /* cmdreq message:
140 u32 type
141 u16 cmd
142 u16 parm0
143 u16 parm1
144 u16 parm2
145 u8 pad[4]
146
147 total: 4 + 2 + 2 + 2 + 2 + 4 = 16
148 */
149 static int zd1201_docmd(struct zd1201 *zd, int cmd, int parm0,
150 int parm1, int parm2)
151 {
152 unsigned char *command;
153 int ret;
154 struct urb *urb;
155
156 command = kmalloc(16, GFP_ATOMIC);
157 if (!command)
158 return -ENOMEM;
159
160 *((__le32*)command) = cpu_to_le32(ZD1201_USB_CMDREQ);
161 *((__le16*)&command[4]) = cpu_to_le16(cmd);
162 *((__le16*)&command[6]) = cpu_to_le16(parm0);
163 *((__le16*)&command[8]) = cpu_to_le16(parm1);
164 *((__le16*)&command[10])= cpu_to_le16(parm2);
165
166 urb = usb_alloc_urb(0, GFP_ATOMIC);
167 if (!urb) {
168 kfree(command);
169 return -ENOMEM;
170 }
171 usb_fill_bulk_urb(urb, zd->usb, usb_sndbulkpipe(zd->usb, zd->endp_out2),
172 command, 16, zd1201_usbfree, zd);
173 ret = usb_submit_urb(urb, GFP_ATOMIC);
174 if (ret) {
175 kfree(command);
176 usb_free_urb(urb);
177 }
178
179 return ret;
180 }
181
182 /* Callback after sending out a packet */
183 static void zd1201_usbtx(struct urb *urb)
184 {
185 struct zd1201 *zd = urb->context;
186 netif_wake_queue(zd->dev);
187 return;
188 }
189
190 /* Incoming data */
191 static void zd1201_usbrx(struct urb *urb)
192 {
193 struct zd1201 *zd = urb->context;
194 int free = 0;
195 unsigned char *data = urb->transfer_buffer;
196 struct sk_buff *skb;
197 unsigned char type;
198
199 if (!zd)
200 return;
201
202 switch(urb->status) {
203 case -EILSEQ:
204 case -ENODEV:
205 case -ETIME:
206 case -ENOENT:
207 case -EPIPE:
208 case -EOVERFLOW:
209 case -ESHUTDOWN:
210 dev_warn(&zd->usb->dev, "%s: rx urb failed: %d\n",
211 zd->dev->name, urb->status);
212 free = 1;
213 goto exit;
214 }
215
216 if (urb->status != 0 || urb->actual_length == 0)
217 goto resubmit;
218
219 type = data[0];
220 if (type == ZD1201_PACKET_EVENTSTAT || type == ZD1201_PACKET_RESOURCE) {
221 memcpy(zd->rxdata, data, urb->actual_length);
222 zd->rxlen = urb->actual_length;
223 zd->rxdatas = 1;
224 wake_up(&zd->rxdataq);
225 }
226 /* Info frame */
227 if (type == ZD1201_PACKET_INQUIRE) {
228 int i = 0;
229 unsigned short infotype, framelen, copylen;
230 framelen = le16_to_cpu(*(__le16*)&data[4]);
231 infotype = le16_to_cpu(*(__le16*)&data[6]);
232
233 if (infotype == ZD1201_INF_LINKSTATUS) {
234 short linkstatus;
235
236 linkstatus = le16_to_cpu(*(__le16*)&data[8]);
237 switch(linkstatus) {
238 case 1:
239 netif_carrier_on(zd->dev);
240 break;
241 case 2:
242 netif_carrier_off(zd->dev);
243 break;
244 case 3:
245 netif_carrier_off(zd->dev);
246 break;
247 case 4:
248 netif_carrier_on(zd->dev);
249 break;
250 default:
251 netif_carrier_off(zd->dev);
252 }
253 goto resubmit;
254 }
255 if (infotype == ZD1201_INF_ASSOCSTATUS) {
256 short status = le16_to_cpu(*(__le16*)(data+8));
257 int event;
258 union iwreq_data wrqu;
259
260 switch (status) {
261 case ZD1201_ASSOCSTATUS_STAASSOC:
262 case ZD1201_ASSOCSTATUS_REASSOC:
263 event = IWEVREGISTERED;
264 break;
265 case ZD1201_ASSOCSTATUS_DISASSOC:
266 case ZD1201_ASSOCSTATUS_ASSOCFAIL:
267 case ZD1201_ASSOCSTATUS_AUTHFAIL:
268 default:
269 event = IWEVEXPIRED;
270 }
271 memcpy(wrqu.addr.sa_data, data+10, ETH_ALEN);
272 wrqu.addr.sa_family = ARPHRD_ETHER;
273
274 /* Send event to user space */
275 wireless_send_event(zd->dev, event, &wrqu, NULL);
276
277 goto resubmit;
278 }
279 if (infotype == ZD1201_INF_AUTHREQ) {
280 union iwreq_data wrqu;
281
282 memcpy(wrqu.addr.sa_data, data+8, ETH_ALEN);
283 wrqu.addr.sa_family = ARPHRD_ETHER;
284 /* There isn't a event that trully fits this request.
285 We assume that userspace will be smart enough to
286 see a new station being expired and sends back a
287 authstation ioctl to authorize it. */
288 wireless_send_event(zd->dev, IWEVEXPIRED, &wrqu, NULL);
289 goto resubmit;
290 }
291 /* Other infotypes are handled outside this handler */
292 zd->rxlen = 0;
293 while (i < urb->actual_length) {
294 copylen = le16_to_cpu(*(__le16*)&data[i+2]);
295 /* Sanity check, sometimes we get junk */
296 if (copylen+zd->rxlen > sizeof(zd->rxdata))
297 break;
298 memcpy(zd->rxdata+zd->rxlen, data+i+4, copylen);
299 zd->rxlen += copylen;
300 i += 64;
301 }
302 if (i >= urb->actual_length) {
303 zd->rxdatas = 1;
304 wake_up(&zd->rxdataq);
305 }
306 goto resubmit;
307 }
308 /* Actual data */
309 if (data[urb->actual_length-1] == ZD1201_PACKET_RXDATA) {
310 int datalen = urb->actual_length-1;
311 unsigned short len, fc, seq;
312 struct hlist_node *node;
313
314 len = ntohs(*(__be16 *)&data[datalen-2]);
315 if (len>datalen)
316 len=datalen;
317 fc = le16_to_cpu(*(__le16 *)&data[datalen-16]);
318 seq = le16_to_cpu(*(__le16 *)&data[datalen-24]);
319
320 if (zd->monitor) {
321 if (datalen < 24)
322 goto resubmit;
323 if (!(skb = dev_alloc_skb(datalen+24)))
324 goto resubmit;
325
326 memcpy(skb_put(skb, 2), &data[datalen-16], 2);
327 memcpy(skb_put(skb, 2), &data[datalen-2], 2);
328 memcpy(skb_put(skb, 6), &data[datalen-14], 6);
329 memcpy(skb_put(skb, 6), &data[datalen-22], 6);
330 memcpy(skb_put(skb, 6), &data[datalen-8], 6);
331 memcpy(skb_put(skb, 2), &data[datalen-24], 2);
332 memcpy(skb_put(skb, len), data, len);
333 skb->protocol = eth_type_trans(skb, zd->dev);
334 zd->dev->stats.rx_packets++;
335 zd->dev->stats.rx_bytes += skb->len;
336 netif_rx(skb);
337 goto resubmit;
338 }
339
340 if ((seq & IEEE80211_SCTL_FRAG) ||
341 (fc & IEEE80211_FCTL_MOREFRAGS)) {
342 struct zd1201_frag *frag = NULL;
343 char *ptr;
344
345 if (datalen<14)
346 goto resubmit;
347 if ((seq & IEEE80211_SCTL_FRAG) == 0) {
348 frag = kmalloc(sizeof(*frag), GFP_ATOMIC);
349 if (!frag)
350 goto resubmit;
351 skb = dev_alloc_skb(IEEE80211_MAX_DATA_LEN +14+2);
352 if (!skb) {
353 kfree(frag);
354 goto resubmit;
355 }
356 frag->skb = skb;
357 frag->seq = seq & IEEE80211_SCTL_SEQ;
358 skb_reserve(skb, 2);
359 memcpy(skb_put(skb, 12), &data[datalen-14], 12);
360 memcpy(skb_put(skb, 2), &data[6], 2);
361 memcpy(skb_put(skb, len), data+8, len);
362 hlist_add_head(&frag->fnode, &zd->fraglist);
363 goto resubmit;
364 }
365 hlist_for_each_entry(frag, node, &zd->fraglist, fnode)
366 if (frag->seq == (seq&IEEE80211_SCTL_SEQ))
367 break;
368 if (!frag)
369 goto resubmit;
370 skb = frag->skb;
371 ptr = skb_put(skb, len);
372 if (ptr)
373 memcpy(ptr, data+8, len);
374 if (fc & IEEE80211_FCTL_MOREFRAGS)
375 goto resubmit;
376 hlist_del_init(&frag->fnode);
377 kfree(frag);
378 } else {
379 if (datalen<14)
380 goto resubmit;
381 skb = dev_alloc_skb(len + 14 + 2);
382 if (!skb)
383 goto resubmit;
384 skb_reserve(skb, 2);
385 memcpy(skb_put(skb, 12), &data[datalen-14], 12);
386 memcpy(skb_put(skb, 2), &data[6], 2);
387 memcpy(skb_put(skb, len), data+8, len);
388 }
389 skb->protocol = eth_type_trans(skb, zd->dev);
390 zd->dev->stats.rx_packets++;
391 zd->dev->stats.rx_bytes += skb->len;
392 netif_rx(skb);
393 }
394 resubmit:
395 memset(data, 0, ZD1201_RXSIZE);
396
397 urb->status = 0;
398 urb->dev = zd->usb;
399 if(usb_submit_urb(urb, GFP_ATOMIC))
400 free = 1;
401
402 exit:
403 if (free) {
404 zd->rxlen = 0;
405 zd->rxdatas = 1;
406 wake_up(&zd->rxdataq);
407 kfree(urb->transfer_buffer);
408 }
409 return;
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 dev->trans_start = jiffies;
830 }
831 kfree_skb(skb);
832
833 return NETDEV_TX_OK;
834 }
835
836 static void zd1201_tx_timeout(struct net_device *dev)
837 {
838 struct zd1201 *zd = netdev_priv(dev);
839
840 if (!zd)
841 return;
842 dev_warn(&zd->usb->dev, "%s: TX timeout, shooting down urb\n",
843 dev->name);
844 usb_unlink_urb(zd->tx_urb);
845 dev->stats.tx_errors++;
846 /* Restart the timeout to quiet the watchdog: */
847 dev->trans_start = jiffies;
848 }
849
850 static int zd1201_set_mac_address(struct net_device *dev, void *p)
851 {
852 struct sockaddr *addr = p;
853 struct zd1201 *zd = netdev_priv(dev);
854 int err;
855
856 if (!zd)
857 return -ENODEV;
858
859 err = zd1201_setconfig(zd, ZD1201_RID_CNFOWNMACADDR,
860 addr->sa_data, dev->addr_len, 1);
861 if (err)
862 return err;
863 memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
864
865 return zd1201_mac_reset(zd);
866 }
867
868 static struct iw_statistics *zd1201_get_wireless_stats(struct net_device *dev)
869 {
870 struct zd1201 *zd = netdev_priv(dev);
871
872 return &zd->iwstats;
873 }
874
875 static void zd1201_set_multicast(struct net_device *dev)
876 {
877 struct zd1201 *zd = netdev_priv(dev);
878 struct dev_mc_list *mc = dev->mc_list;
879 unsigned char reqbuf[ETH_ALEN*ZD1201_MAXMULTI];
880 int i;
881
882 if (netdev_mc_count(dev) > ZD1201_MAXMULTI)
883 return;
884
885 for (i=0; i<netdev_mc_count(dev); i++) {
886 memcpy(reqbuf+i*ETH_ALEN, mc->dmi_addr, ETH_ALEN);
887 mc = mc->next;
888 }
889 zd1201_setconfig(zd, ZD1201_RID_CNFGROUPADDRESS, reqbuf,
890 netdev_mc_count(dev) * ETH_ALEN, 0);
891 }
892
893 static int zd1201_config_commit(struct net_device *dev,
894 struct iw_request_info *info, struct iw_point *data, char *essid)
895 {
896 struct zd1201 *zd = netdev_priv(dev);
897
898 return zd1201_mac_reset(zd);
899 }
900
901 static int zd1201_get_name(struct net_device *dev,
902 struct iw_request_info *info, char *name, char *extra)
903 {
904 strcpy(name, "IEEE 802.11b");
905 return 0;
906 }
907
908 static int zd1201_set_freq(struct net_device *dev,
909 struct iw_request_info *info, struct iw_freq *freq, char *extra)
910 {
911 struct zd1201 *zd = netdev_priv(dev);
912 short channel = 0;
913 int err;
914
915 if (freq->e == 0)
916 channel = freq->m;
917 else {
918 channel = ieee80211_freq_to_dsss_chan(freq->m);
919 if (channel < 0)
920 channel = 0;
921 }
922
923 err = zd1201_setconfig16(zd, ZD1201_RID_CNFOWNCHANNEL, channel);
924 if (err)
925 return err;
926
927 zd1201_mac_reset(zd);
928
929 return 0;
930 }
931
932 static int zd1201_get_freq(struct net_device *dev,
933 struct iw_request_info *info, struct iw_freq *freq, char *extra)
934 {
935 struct zd1201 *zd = netdev_priv(dev);
936 short channel;
937 int err;
938
939 err = zd1201_getconfig16(zd, ZD1201_RID_CNFOWNCHANNEL, &channel);
940 if (err)
941 return err;
942 freq->e = 0;
943 freq->m = channel;
944
945 return 0;
946 }
947
948 static int zd1201_set_mode(struct net_device *dev,
949 struct iw_request_info *info, __u32 *mode, char *extra)
950 {
951 struct zd1201 *zd = netdev_priv(dev);
952 short porttype, monitor = 0;
953 unsigned char buffer[IW_ESSID_MAX_SIZE+2];
954 int err;
955
956 if (zd->ap) {
957 if (*mode != IW_MODE_MASTER)
958 return -EINVAL;
959 return 0;
960 }
961
962 err = zd1201_setconfig16(zd, ZD1201_RID_PROMISCUOUSMODE, 0);
963 if (err)
964 return err;
965 zd->dev->type = ARPHRD_ETHER;
966 switch(*mode) {
967 case IW_MODE_MONITOR:
968 monitor = 1;
969 zd->dev->type = ARPHRD_IEEE80211;
970 /* Make sure we are no longer associated with by
971 setting an 'impossible' essid.
972 (otherwise we mess up firmware)
973 */
974 zd1201_join(zd, "\0-*#\0", 5);
975 /* Put port in pIBSS */
976 case 8: /* No pseudo-IBSS in wireless extensions (yet) */
977 porttype = ZD1201_PORTTYPE_PSEUDOIBSS;
978 break;
979 case IW_MODE_ADHOC:
980 porttype = ZD1201_PORTTYPE_IBSS;
981 break;
982 case IW_MODE_INFRA:
983 porttype = ZD1201_PORTTYPE_BSS;
984 break;
985 default:
986 return -EINVAL;
987 }
988
989 err = zd1201_setconfig16(zd, ZD1201_RID_CNFPORTTYPE, porttype);
990 if (err)
991 return err;
992 if (zd->monitor && !monitor) {
993 zd1201_disable(zd);
994 *(__le16 *)buffer = cpu_to_le16(zd->essidlen);
995 memcpy(buffer+2, zd->essid, zd->essidlen);
996 err = zd1201_setconfig(zd, ZD1201_RID_CNFDESIREDSSID,
997 buffer, IW_ESSID_MAX_SIZE+2, 1);
998 if (err)
999 return err;
1000 }
1001 zd->monitor = monitor;
1002 /* If monitor mode is set we don't actually turn it on here since it
1003 * is done during mac reset anyway (see zd1201_mac_enable).
1004 */
1005 zd1201_mac_reset(zd);
1006
1007 return 0;
1008 }
1009
1010 static int zd1201_get_mode(struct net_device *dev,
1011 struct iw_request_info *info, __u32 *mode, char *extra)
1012 {
1013 struct zd1201 *zd = netdev_priv(dev);
1014 short porttype;
1015 int err;
1016
1017 err = zd1201_getconfig16(zd, ZD1201_RID_CNFPORTTYPE, &porttype);
1018 if (err)
1019 return err;
1020 switch(porttype) {
1021 case ZD1201_PORTTYPE_IBSS:
1022 *mode = IW_MODE_ADHOC;
1023 break;
1024 case ZD1201_PORTTYPE_BSS:
1025 *mode = IW_MODE_INFRA;
1026 break;
1027 case ZD1201_PORTTYPE_WDS:
1028 *mode = IW_MODE_REPEAT;
1029 break;
1030 case ZD1201_PORTTYPE_PSEUDOIBSS:
1031 *mode = 8;/* No Pseudo-IBSS... */
1032 break;
1033 case ZD1201_PORTTYPE_AP:
1034 *mode = IW_MODE_MASTER;
1035 break;
1036 default:
1037 dev_dbg(&zd->usb->dev, "Unknown porttype: %d\n",
1038 porttype);
1039 *mode = IW_MODE_AUTO;
1040 }
1041 if (zd->monitor)
1042 *mode = IW_MODE_MONITOR;
1043
1044 return 0;
1045 }
1046
1047 static int zd1201_get_range(struct net_device *dev,
1048 struct iw_request_info *info, struct iw_point *wrq, char *extra)
1049 {
1050 struct iw_range *range = (struct iw_range *)extra;
1051
1052 wrq->length = sizeof(struct iw_range);
1053 memset(range, 0, sizeof(struct iw_range));
1054 range->we_version_compiled = WIRELESS_EXT;
1055 range->we_version_source = WIRELESS_EXT;
1056
1057 range->max_qual.qual = 128;
1058 range->max_qual.level = 128;
1059 range->max_qual.noise = 128;
1060 range->max_qual.updated = 7;
1061
1062 range->encoding_size[0] = 5;
1063 range->encoding_size[1] = 13;
1064 range->num_encoding_sizes = 2;
1065 range->max_encoding_tokens = ZD1201_NUMKEYS;
1066
1067 range->num_bitrates = 4;
1068 range->bitrate[0] = 1000000;
1069 range->bitrate[1] = 2000000;
1070 range->bitrate[2] = 5500000;
1071 range->bitrate[3] = 11000000;
1072
1073 range->min_rts = 0;
1074 range->min_frag = ZD1201_FRAGMIN;
1075 range->max_rts = ZD1201_RTSMAX;
1076 range->min_frag = ZD1201_FRAGMAX;
1077
1078 return 0;
1079 }
1080
1081 /* Little bit of magic here: we only get the quality if we poll
1082 * for it, and we never get an actual request to trigger such
1083 * a poll. Therefore we 'assume' that the user will soon ask for
1084 * the stats after asking the bssid.
1085 */
1086 static int zd1201_get_wap(struct net_device *dev,
1087 struct iw_request_info *info, struct sockaddr *ap_addr, char *extra)
1088 {
1089 struct zd1201 *zd = netdev_priv(dev);
1090 unsigned char buffer[6];
1091
1092 if (!zd1201_getconfig(zd, ZD1201_RID_COMMSQUALITY, buffer, 6)) {
1093 /* Unfortunately the quality and noise reported is useless.
1094 they seem to be accumulators that increase until you
1095 read them, unless we poll on a fixed interval we can't
1096 use them
1097 */
1098 /*zd->iwstats.qual.qual = le16_to_cpu(((__le16 *)buffer)[0]);*/
1099 zd->iwstats.qual.level = le16_to_cpu(((__le16 *)buffer)[1]);
1100 /*zd->iwstats.qual.noise = le16_to_cpu(((__le16 *)buffer)[2]);*/
1101 zd->iwstats.qual.updated = 2;
1102 }
1103
1104 return zd1201_getconfig(zd, ZD1201_RID_CURRENTBSSID, ap_addr->sa_data, 6);
1105 }
1106
1107 static int zd1201_set_scan(struct net_device *dev,
1108 struct iw_request_info *info, struct iw_point *srq, char *extra)
1109 {
1110 /* We do everything in get_scan */
1111 return 0;
1112 }
1113
1114 static int zd1201_get_scan(struct net_device *dev,
1115 struct iw_request_info *info, struct iw_point *srq, char *extra)
1116 {
1117 struct zd1201 *zd = netdev_priv(dev);
1118 int err, i, j, enabled_save;
1119 struct iw_event iwe;
1120 char *cev = extra;
1121 char *end_buf = extra + IW_SCAN_MAX_DATA;
1122
1123 /* No scanning in AP mode */
1124 if (zd->ap)
1125 return -EOPNOTSUPP;
1126
1127 /* Scan doesn't seem to work if disabled */
1128 enabled_save = zd->mac_enabled;
1129 zd1201_enable(zd);
1130
1131 zd->rxdatas = 0;
1132 err = zd1201_docmd(zd, ZD1201_CMDCODE_INQUIRE,
1133 ZD1201_INQ_SCANRESULTS, 0, 0);
1134 if (err)
1135 return err;
1136
1137 wait_event_interruptible(zd->rxdataq, zd->rxdatas);
1138 if (!zd->rxlen)
1139 return -EIO;
1140
1141 if (le16_to_cpu(*(__le16*)&zd->rxdata[2]) != ZD1201_INQ_SCANRESULTS)
1142 return -EIO;
1143
1144 for(i=8; i<zd->rxlen; i+=62) {
1145 iwe.cmd = SIOCGIWAP;
1146 iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
1147 memcpy(iwe.u.ap_addr.sa_data, zd->rxdata+i+6, 6);
1148 cev = iwe_stream_add_event(info, cev, end_buf,
1149 &iwe, IW_EV_ADDR_LEN);
1150
1151 iwe.cmd = SIOCGIWESSID;
1152 iwe.u.data.length = zd->rxdata[i+16];
1153 iwe.u.data.flags = 1;
1154 cev = iwe_stream_add_point(info, cev, end_buf,
1155 &iwe, zd->rxdata+i+18);
1156
1157 iwe.cmd = SIOCGIWMODE;
1158 if (zd->rxdata[i+14]&0x01)
1159 iwe.u.mode = IW_MODE_MASTER;
1160 else
1161 iwe.u.mode = IW_MODE_ADHOC;
1162 cev = iwe_stream_add_event(info, cev, end_buf,
1163 &iwe, IW_EV_UINT_LEN);
1164
1165 iwe.cmd = SIOCGIWFREQ;
1166 iwe.u.freq.m = zd->rxdata[i+0];
1167 iwe.u.freq.e = 0;
1168 cev = iwe_stream_add_event(info, cev, end_buf,
1169 &iwe, IW_EV_FREQ_LEN);
1170
1171 iwe.cmd = SIOCGIWRATE;
1172 iwe.u.bitrate.fixed = 0;
1173 iwe.u.bitrate.disabled = 0;
1174 for (j=0; j<10; j++) if (zd->rxdata[i+50+j]) {
1175 iwe.u.bitrate.value = (zd->rxdata[i+50+j]&0x7f)*500000;
1176 cev = iwe_stream_add_event(info, cev, end_buf,
1177 &iwe, IW_EV_PARAM_LEN);
1178 }
1179
1180 iwe.cmd = SIOCGIWENCODE;
1181 iwe.u.data.length = 0;
1182 if (zd->rxdata[i+14]&0x10)
1183 iwe.u.data.flags = IW_ENCODE_ENABLED;
1184 else
1185 iwe.u.data.flags = IW_ENCODE_DISABLED;
1186 cev = iwe_stream_add_point(info, cev, end_buf, &iwe, NULL);
1187
1188 iwe.cmd = IWEVQUAL;
1189 iwe.u.qual.qual = zd->rxdata[i+4];
1190 iwe.u.qual.noise= zd->rxdata[i+2]/10-100;
1191 iwe.u.qual.level = (256+zd->rxdata[i+4]*100)/255-100;
1192 iwe.u.qual.updated = 7;
1193 cev = iwe_stream_add_event(info, cev, end_buf,
1194 &iwe, IW_EV_QUAL_LEN);
1195 }
1196
1197 if (!enabled_save)
1198 zd1201_disable(zd);
1199
1200 srq->length = cev - extra;
1201 srq->flags = 0;
1202
1203 return 0;
1204 }
1205
1206 static int zd1201_set_essid(struct net_device *dev,
1207 struct iw_request_info *info, struct iw_point *data, char *essid)
1208 {
1209 struct zd1201 *zd = netdev_priv(dev);
1210
1211 if (data->length > IW_ESSID_MAX_SIZE)
1212 return -EINVAL;
1213 if (data->length < 1)
1214 data->length = 1;
1215 zd->essidlen = data->length;
1216 memset(zd->essid, 0, IW_ESSID_MAX_SIZE+1);
1217 memcpy(zd->essid, essid, data->length);
1218 return zd1201_join(zd, zd->essid, zd->essidlen);
1219 }
1220
1221 static int zd1201_get_essid(struct net_device *dev,
1222 struct iw_request_info *info, struct iw_point *data, char *essid)
1223 {
1224 struct zd1201 *zd = netdev_priv(dev);
1225
1226 memcpy(essid, zd->essid, zd->essidlen);
1227 data->flags = 1;
1228 data->length = zd->essidlen;
1229
1230 return 0;
1231 }
1232
1233 static int zd1201_get_nick(struct net_device *dev, struct iw_request_info *info,
1234 struct iw_point *data, char *nick)
1235 {
1236 strcpy(nick, "zd1201");
1237 data->flags = 1;
1238 data->length = strlen(nick);
1239 return 0;
1240 }
1241
1242 static int zd1201_set_rate(struct net_device *dev,
1243 struct iw_request_info *info, struct iw_param *rrq, char *extra)
1244 {
1245 struct zd1201 *zd = netdev_priv(dev);
1246 short rate;
1247 int err;
1248
1249 switch (rrq->value) {
1250 case 1000000:
1251 rate = ZD1201_RATEB1;
1252 break;
1253 case 2000000:
1254 rate = ZD1201_RATEB2;
1255 break;
1256 case 5500000:
1257 rate = ZD1201_RATEB5;
1258 break;
1259 case 11000000:
1260 default:
1261 rate = ZD1201_RATEB11;
1262 break;
1263 }
1264 if (!rrq->fixed) { /* Also enable all lower bitrates */
1265 rate |= rate-1;
1266 }
1267
1268 err = zd1201_setconfig16(zd, ZD1201_RID_TXRATECNTL, rate);
1269 if (err)
1270 return err;
1271
1272 return zd1201_mac_reset(zd);
1273 }
1274
1275 static int zd1201_get_rate(struct net_device *dev,
1276 struct iw_request_info *info, struct iw_param *rrq, char *extra)
1277 {
1278 struct zd1201 *zd = netdev_priv(dev);
1279 short rate;
1280 int err;
1281
1282 err = zd1201_getconfig16(zd, ZD1201_RID_CURRENTTXRATE, &rate);
1283 if (err)
1284 return err;
1285
1286 switch(rate) {
1287 case 1:
1288 rrq->value = 1000000;
1289 break;
1290 case 2:
1291 rrq->value = 2000000;
1292 break;
1293 case 5:
1294 rrq->value = 5500000;
1295 break;
1296 case 11:
1297 rrq->value = 11000000;
1298 break;
1299 default:
1300 rrq->value = 0;
1301 }
1302 rrq->fixed = 0;
1303 rrq->disabled = 0;
1304
1305 return 0;
1306 }
1307
1308 static int zd1201_set_rts(struct net_device *dev, struct iw_request_info *info,
1309 struct iw_param *rts, char *extra)
1310 {
1311 struct zd1201 *zd = netdev_priv(dev);
1312 int err;
1313 short val = rts->value;
1314
1315 if (rts->disabled || !rts->fixed)
1316 val = ZD1201_RTSMAX;
1317 if (val > ZD1201_RTSMAX)
1318 return -EINVAL;
1319 if (val < 0)
1320 return -EINVAL;
1321
1322 err = zd1201_setconfig16(zd, ZD1201_RID_CNFRTSTHRESHOLD, val);
1323 if (err)
1324 return err;
1325 return zd1201_mac_reset(zd);
1326 }
1327
1328 static int zd1201_get_rts(struct net_device *dev, struct iw_request_info *info,
1329 struct iw_param *rts, char *extra)
1330 {
1331 struct zd1201 *zd = netdev_priv(dev);
1332 short rtst;
1333 int err;
1334
1335 err = zd1201_getconfig16(zd, ZD1201_RID_CNFRTSTHRESHOLD, &rtst);
1336 if (err)
1337 return err;
1338 rts->value = rtst;
1339 rts->disabled = (rts->value == ZD1201_RTSMAX);
1340 rts->fixed = 1;
1341
1342 return 0;
1343 }
1344
1345 static int zd1201_set_frag(struct net_device *dev, struct iw_request_info *info,
1346 struct iw_param *frag, char *extra)
1347 {
1348 struct zd1201 *zd = netdev_priv(dev);
1349 int err;
1350 short val = frag->value;
1351
1352 if (frag->disabled || !frag->fixed)
1353 val = ZD1201_FRAGMAX;
1354 if (val > ZD1201_FRAGMAX)
1355 return -EINVAL;
1356 if (val < ZD1201_FRAGMIN)
1357 return -EINVAL;
1358 if (val & 1)
1359 return -EINVAL;
1360 err = zd1201_setconfig16(zd, ZD1201_RID_CNFFRAGTHRESHOLD, val);
1361 if (err)
1362 return err;
1363 return zd1201_mac_reset(zd);
1364 }
1365
1366 static int zd1201_get_frag(struct net_device *dev, struct iw_request_info *info,
1367 struct iw_param *frag, char *extra)
1368 {
1369 struct zd1201 *zd = netdev_priv(dev);
1370 short fragt;
1371 int err;
1372
1373 err = zd1201_getconfig16(zd, ZD1201_RID_CNFFRAGTHRESHOLD, &fragt);
1374 if (err)
1375 return err;
1376 frag->value = fragt;
1377 frag->disabled = (frag->value == ZD1201_FRAGMAX);
1378 frag->fixed = 1;
1379
1380 return 0;
1381 }
1382
1383 static int zd1201_set_retry(struct net_device *dev,
1384 struct iw_request_info *info, struct iw_param *rrq, char *extra)
1385 {
1386 return 0;
1387 }
1388
1389 static int zd1201_get_retry(struct net_device *dev,
1390 struct iw_request_info *info, struct iw_param *rrq, char *extra)
1391 {
1392 return 0;
1393 }
1394
1395 static int zd1201_set_encode(struct net_device *dev,
1396 struct iw_request_info *info, struct iw_point *erq, char *key)
1397 {
1398 struct zd1201 *zd = netdev_priv(dev);
1399 short i;
1400 int err, rid;
1401
1402 if (erq->length > ZD1201_MAXKEYLEN)
1403 return -EINVAL;
1404
1405 i = (erq->flags & IW_ENCODE_INDEX)-1;
1406 if (i == -1) {
1407 err = zd1201_getconfig16(zd,ZD1201_RID_CNFDEFAULTKEYID,&i);
1408 if (err)
1409 return err;
1410 } else {
1411 err = zd1201_setconfig16(zd, ZD1201_RID_CNFDEFAULTKEYID, i);
1412 if (err)
1413 return err;
1414 }
1415
1416 if (i < 0 || i >= ZD1201_NUMKEYS)
1417 return -EINVAL;
1418
1419 rid = ZD1201_RID_CNFDEFAULTKEY0 + i;
1420 err = zd1201_setconfig(zd, rid, key, erq->length, 1);
1421 if (err)
1422 return err;
1423 zd->encode_keylen[i] = erq->length;
1424 memcpy(zd->encode_keys[i], key, erq->length);
1425
1426 i=0;
1427 if (!(erq->flags & IW_ENCODE_DISABLED & IW_ENCODE_MODE)) {
1428 i |= 0x01;
1429 zd->encode_enabled = 1;
1430 } else
1431 zd->encode_enabled = 0;
1432 if (erq->flags & IW_ENCODE_RESTRICTED & IW_ENCODE_MODE) {
1433 i |= 0x02;
1434 zd->encode_restricted = 1;
1435 } else
1436 zd->encode_restricted = 0;
1437 err = zd1201_setconfig16(zd, ZD1201_RID_CNFWEBFLAGS, i);
1438 if (err)
1439 return err;
1440
1441 if (zd->encode_enabled)
1442 i = ZD1201_CNFAUTHENTICATION_SHAREDKEY;
1443 else
1444 i = ZD1201_CNFAUTHENTICATION_OPENSYSTEM;
1445 err = zd1201_setconfig16(zd, ZD1201_RID_CNFAUTHENTICATION, i);
1446 if (err)
1447 return err;
1448
1449 return zd1201_mac_reset(zd);
1450 }
1451
1452 static int zd1201_get_encode(struct net_device *dev,
1453 struct iw_request_info *info, struct iw_point *erq, char *key)
1454 {
1455 struct zd1201 *zd = netdev_priv(dev);
1456 short i;
1457 int err;
1458
1459 if (zd->encode_enabled)
1460 erq->flags = IW_ENCODE_ENABLED;
1461 else
1462 erq->flags = IW_ENCODE_DISABLED;
1463 if (zd->encode_restricted)
1464 erq->flags |= IW_ENCODE_RESTRICTED;
1465 else
1466 erq->flags |= IW_ENCODE_OPEN;
1467
1468 i = (erq->flags & IW_ENCODE_INDEX) -1;
1469 if (i == -1) {
1470 err = zd1201_getconfig16(zd, ZD1201_RID_CNFDEFAULTKEYID, &i);
1471 if (err)
1472 return err;
1473 }
1474 if (i<0 || i>= ZD1201_NUMKEYS)
1475 return -EINVAL;
1476
1477 erq->flags |= i+1;
1478
1479 erq->length = zd->encode_keylen[i];
1480 memcpy(key, zd->encode_keys[i], erq->length);
1481
1482 return 0;
1483 }
1484
1485 static int zd1201_set_power(struct net_device *dev,
1486 struct iw_request_info *info, struct iw_param *vwrq, char *extra)
1487 {
1488 struct zd1201 *zd = netdev_priv(dev);
1489 short enabled, duration, level;
1490 int err;
1491
1492 enabled = vwrq->disabled ? 0 : 1;
1493 if (enabled) {
1494 if (vwrq->flags & IW_POWER_PERIOD) {
1495 duration = vwrq->value;
1496 err = zd1201_setconfig16(zd,
1497 ZD1201_RID_CNFMAXSLEEPDURATION, duration);
1498 if (err)
1499 return err;
1500 goto out;
1501 }
1502 if (vwrq->flags & IW_POWER_TIMEOUT) {
1503 err = zd1201_getconfig16(zd,
1504 ZD1201_RID_CNFMAXSLEEPDURATION, &duration);
1505 if (err)
1506 return err;
1507 level = vwrq->value * 4 / duration;
1508 if (level > 4)
1509 level = 4;
1510 if (level < 0)
1511 level = 0;
1512 err = zd1201_setconfig16(zd, ZD1201_RID_CNFPMEPS,
1513 level);
1514 if (err)
1515 return err;
1516 goto out;
1517 }
1518 return -EINVAL;
1519 }
1520 out:
1521 return zd1201_setconfig16(zd, ZD1201_RID_CNFPMENABLED, enabled);
1522 }
1523
1524 static int zd1201_get_power(struct net_device *dev,
1525 struct iw_request_info *info, struct iw_param *vwrq, char *extra)
1526 {
1527 struct zd1201 *zd = netdev_priv(dev);
1528 short enabled, level, duration;
1529 int err;
1530
1531 err = zd1201_getconfig16(zd, ZD1201_RID_CNFPMENABLED, &enabled);
1532 if (err)
1533 return err;
1534 err = zd1201_getconfig16(zd, ZD1201_RID_CNFPMEPS, &level);
1535 if (err)
1536 return err;
1537 err = zd1201_getconfig16(zd, ZD1201_RID_CNFMAXSLEEPDURATION, &duration);
1538 if (err)
1539 return err;
1540 vwrq->disabled = enabled ? 0 : 1;
1541 if (vwrq->flags & IW_POWER_TYPE) {
1542 if (vwrq->flags & IW_POWER_PERIOD) {
1543 vwrq->value = duration;
1544 vwrq->flags = IW_POWER_PERIOD;
1545 } else {
1546 vwrq->value = duration * level / 4;
1547 vwrq->flags = IW_POWER_TIMEOUT;
1548 }
1549 }
1550 if (vwrq->flags & IW_POWER_MODE) {
1551 if (enabled && level)
1552 vwrq->flags = IW_POWER_UNICAST_R;
1553 else
1554 vwrq->flags = IW_POWER_ALL_R;
1555 }
1556
1557 return 0;
1558 }
1559
1560
1561 static const iw_handler zd1201_iw_handler[] =
1562 {
1563 (iw_handler) zd1201_config_commit, /* SIOCSIWCOMMIT */
1564 (iw_handler) zd1201_get_name, /* SIOCGIWNAME */
1565 (iw_handler) NULL, /* SIOCSIWNWID */
1566 (iw_handler) NULL, /* SIOCGIWNWID */
1567 (iw_handler) zd1201_set_freq, /* SIOCSIWFREQ */
1568 (iw_handler) zd1201_get_freq, /* SIOCGIWFREQ */
1569 (iw_handler) zd1201_set_mode, /* SIOCSIWMODE */
1570 (iw_handler) zd1201_get_mode, /* SIOCGIWMODE */
1571 (iw_handler) NULL, /* SIOCSIWSENS */
1572 (iw_handler) NULL, /* SIOCGIWSENS */
1573 (iw_handler) NULL, /* SIOCSIWRANGE */
1574 (iw_handler) zd1201_get_range, /* SIOCGIWRANGE */
1575 (iw_handler) NULL, /* SIOCSIWPRIV */
1576 (iw_handler) NULL, /* SIOCGIWPRIV */
1577 (iw_handler) NULL, /* SIOCSIWSTATS */
1578 (iw_handler) NULL, /* SIOCGIWSTATS */
1579 (iw_handler) NULL, /* SIOCSIWSPY */
1580 (iw_handler) NULL, /* SIOCGIWSPY */
1581 (iw_handler) NULL, /* -- hole -- */
1582 (iw_handler) NULL, /* -- hole -- */
1583 (iw_handler) NULL/*zd1201_set_wap*/, /* SIOCSIWAP */
1584 (iw_handler) zd1201_get_wap, /* SIOCGIWAP */
1585 (iw_handler) NULL, /* -- hole -- */
1586 (iw_handler) NULL, /* SIOCGIWAPLIST */
1587 (iw_handler) zd1201_set_scan, /* SIOCSIWSCAN */
1588 (iw_handler) zd1201_get_scan, /* SIOCGIWSCAN */
1589 (iw_handler) zd1201_set_essid, /* SIOCSIWESSID */
1590 (iw_handler) zd1201_get_essid, /* SIOCGIWESSID */
1591 (iw_handler) NULL, /* SIOCSIWNICKN */
1592 (iw_handler) zd1201_get_nick, /* SIOCGIWNICKN */
1593 (iw_handler) NULL, /* -- hole -- */
1594 (iw_handler) NULL, /* -- hole -- */
1595 (iw_handler) zd1201_set_rate, /* SIOCSIWRATE */
1596 (iw_handler) zd1201_get_rate, /* SIOCGIWRATE */
1597 (iw_handler) zd1201_set_rts, /* SIOCSIWRTS */
1598 (iw_handler) zd1201_get_rts, /* SIOCGIWRTS */
1599 (iw_handler) zd1201_set_frag, /* SIOCSIWFRAG */
1600 (iw_handler) zd1201_get_frag, /* SIOCGIWFRAG */
1601 (iw_handler) NULL, /* SIOCSIWTXPOW */
1602 (iw_handler) NULL, /* SIOCGIWTXPOW */
1603 (iw_handler) zd1201_set_retry, /* SIOCSIWRETRY */
1604 (iw_handler) zd1201_get_retry, /* SIOCGIWRETRY */
1605 (iw_handler) zd1201_set_encode, /* SIOCSIWENCODE */
1606 (iw_handler) zd1201_get_encode, /* SIOCGIWENCODE */
1607 (iw_handler) zd1201_set_power, /* SIOCSIWPOWER */
1608 (iw_handler) zd1201_get_power, /* SIOCGIWPOWER */
1609 };
1610
1611 static int zd1201_set_hostauth(struct net_device *dev,
1612 struct iw_request_info *info, struct iw_param *rrq, char *extra)
1613 {
1614 struct zd1201 *zd = netdev_priv(dev);
1615
1616 if (!zd->ap)
1617 return -EOPNOTSUPP;
1618
1619 return zd1201_setconfig16(zd, ZD1201_RID_CNFHOSTAUTH, rrq->value);
1620 }
1621
1622 static int zd1201_get_hostauth(struct net_device *dev,
1623 struct iw_request_info *info, struct iw_param *rrq, char *extra)
1624 {
1625 struct zd1201 *zd = netdev_priv(dev);
1626 short hostauth;
1627 int err;
1628
1629 if (!zd->ap)
1630 return -EOPNOTSUPP;
1631
1632 err = zd1201_getconfig16(zd, ZD1201_RID_CNFHOSTAUTH, &hostauth);
1633 if (err)
1634 return err;
1635 rrq->value = hostauth;
1636 rrq->fixed = 1;
1637
1638 return 0;
1639 }
1640
1641 static int zd1201_auth_sta(struct net_device *dev,
1642 struct iw_request_info *info, struct sockaddr *sta, char *extra)
1643 {
1644 struct zd1201 *zd = netdev_priv(dev);
1645 unsigned char buffer[10];
1646
1647 if (!zd->ap)
1648 return -EOPNOTSUPP;
1649
1650 memcpy(buffer, sta->sa_data, ETH_ALEN);
1651 *(short*)(buffer+6) = 0; /* 0==success, 1==failure */
1652 *(short*)(buffer+8) = 0;
1653
1654 return zd1201_setconfig(zd, ZD1201_RID_AUTHENTICATESTA, buffer, 10, 1);
1655 }
1656
1657 static int zd1201_set_maxassoc(struct net_device *dev,
1658 struct iw_request_info *info, struct iw_param *rrq, char *extra)
1659 {
1660 struct zd1201 *zd = netdev_priv(dev);
1661 int err;
1662
1663 if (!zd->ap)
1664 return -EOPNOTSUPP;
1665
1666 err = zd1201_setconfig16(zd, ZD1201_RID_CNFMAXASSOCSTATIONS, rrq->value);
1667 if (err)
1668 return err;
1669 return 0;
1670 }
1671
1672 static int zd1201_get_maxassoc(struct net_device *dev,
1673 struct iw_request_info *info, struct iw_param *rrq, char *extra)
1674 {
1675 struct zd1201 *zd = netdev_priv(dev);
1676 short maxassoc;
1677 int err;
1678
1679 if (!zd->ap)
1680 return -EOPNOTSUPP;
1681
1682 err = zd1201_getconfig16(zd, ZD1201_RID_CNFMAXASSOCSTATIONS, &maxassoc);
1683 if (err)
1684 return err;
1685 rrq->value = maxassoc;
1686 rrq->fixed = 1;
1687
1688 return 0;
1689 }
1690
1691 static const iw_handler zd1201_private_handler[] = {
1692 (iw_handler) zd1201_set_hostauth, /* ZD1201SIWHOSTAUTH */
1693 (iw_handler) zd1201_get_hostauth, /* ZD1201GIWHOSTAUTH */
1694 (iw_handler) zd1201_auth_sta, /* ZD1201SIWAUTHSTA */
1695 (iw_handler) NULL, /* nothing to get */
1696 (iw_handler) zd1201_set_maxassoc, /* ZD1201SIMAXASSOC */
1697 (iw_handler) zd1201_get_maxassoc, /* ZD1201GIMAXASSOC */
1698 };
1699
1700 static const struct iw_priv_args zd1201_private_args[] = {
1701 { ZD1201SIWHOSTAUTH, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
1702 IW_PRIV_TYPE_NONE, "sethostauth" },
1703 { ZD1201GIWHOSTAUTH, IW_PRIV_TYPE_NONE,
1704 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "gethostauth" },
1705 { ZD1201SIWAUTHSTA, IW_PRIV_TYPE_ADDR | IW_PRIV_SIZE_FIXED | 1,
1706 IW_PRIV_TYPE_NONE, "authstation" },
1707 { ZD1201SIWMAXASSOC, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
1708 IW_PRIV_TYPE_NONE, "setmaxassoc" },
1709 { ZD1201GIWMAXASSOC, IW_PRIV_TYPE_NONE,
1710 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getmaxassoc" },
1711 };
1712
1713 static const struct iw_handler_def zd1201_iw_handlers = {
1714 .num_standard = ARRAY_SIZE(zd1201_iw_handler),
1715 .num_private = ARRAY_SIZE(zd1201_private_handler),
1716 .num_private_args = ARRAY_SIZE(zd1201_private_args),
1717 .standard = (iw_handler *)zd1201_iw_handler,
1718 .private = (iw_handler *)zd1201_private_handler,
1719 .private_args = (struct iw_priv_args *) zd1201_private_args,
1720 .get_wireless_stats = zd1201_get_wireless_stats,
1721 };
1722
1723 static const struct net_device_ops zd1201_netdev_ops = {
1724 .ndo_open = zd1201_net_open,
1725 .ndo_stop = zd1201_net_stop,
1726 .ndo_start_xmit = zd1201_hard_start_xmit,
1727 .ndo_tx_timeout = zd1201_tx_timeout,
1728 .ndo_set_multicast_list = zd1201_set_multicast,
1729 .ndo_set_mac_address = zd1201_set_mac_address,
1730 .ndo_change_mtu = eth_change_mtu,
1731 .ndo_validate_addr = eth_validate_addr,
1732 };
1733
1734 static int zd1201_probe(struct usb_interface *interface,
1735 const struct usb_device_id *id)
1736 {
1737 struct zd1201 *zd;
1738 struct net_device *dev;
1739 struct usb_device *usb;
1740 int err;
1741 short porttype;
1742 char buf[IW_ESSID_MAX_SIZE+2];
1743
1744 usb = interface_to_usbdev(interface);
1745
1746 dev = alloc_etherdev(sizeof(*zd));
1747 if (!dev)
1748 return -ENOMEM;
1749 zd = netdev_priv(dev);
1750 zd->dev = dev;
1751
1752 zd->ap = ap;
1753 zd->usb = usb;
1754 zd->removed = 0;
1755 init_waitqueue_head(&zd->rxdataq);
1756 INIT_HLIST_HEAD(&zd->fraglist);
1757
1758 err = zd1201_fw_upload(usb, zd->ap);
1759 if (err) {
1760 dev_err(&usb->dev, "zd1201 firmware upload failed: %d\n", err);
1761 goto err_zd;
1762 }
1763
1764 zd->endp_in = 1;
1765 zd->endp_out = 1;
1766 zd->endp_out2 = 2;
1767 zd->rx_urb = usb_alloc_urb(0, GFP_KERNEL);
1768 zd->tx_urb = usb_alloc_urb(0, GFP_KERNEL);
1769 if (!zd->rx_urb || !zd->tx_urb)
1770 goto err_zd;
1771
1772 mdelay(100);
1773 err = zd1201_drvr_start(zd);
1774 if (err)
1775 goto err_zd;
1776
1777 err = zd1201_setconfig16(zd, ZD1201_RID_CNFMAXDATALEN, 2312);
1778 if (err)
1779 goto err_start;
1780
1781 err = zd1201_setconfig16(zd, ZD1201_RID_TXRATECNTL,
1782 ZD1201_RATEB1 | ZD1201_RATEB2 | ZD1201_RATEB5 | ZD1201_RATEB11);
1783 if (err)
1784 goto err_start;
1785
1786 dev->netdev_ops = &zd1201_netdev_ops;
1787 dev->wireless_handlers = &zd1201_iw_handlers;
1788 dev->watchdog_timeo = ZD1201_TX_TIMEOUT;
1789 strcpy(dev->name, "wlan%d");
1790
1791 err = zd1201_getconfig(zd, ZD1201_RID_CNFOWNMACADDR,
1792 dev->dev_addr, dev->addr_len);
1793 if (err)
1794 goto err_start;
1795
1796 /* Set wildcard essid to match zd->essid */
1797 *(__le16 *)buf = cpu_to_le16(0);
1798 err = zd1201_setconfig(zd, ZD1201_RID_CNFDESIREDSSID, buf,
1799 IW_ESSID_MAX_SIZE+2, 1);
1800 if (err)
1801 goto err_start;
1802
1803 if (zd->ap)
1804 porttype = ZD1201_PORTTYPE_AP;
1805 else
1806 porttype = ZD1201_PORTTYPE_BSS;
1807 err = zd1201_setconfig16(zd, ZD1201_RID_CNFPORTTYPE, porttype);
1808 if (err)
1809 goto err_start;
1810
1811 SET_NETDEV_DEV(dev, &usb->dev);
1812
1813 err = register_netdev(dev);
1814 if (err)
1815 goto err_start;
1816 dev_info(&usb->dev, "%s: ZD1201 USB Wireless interface\n",
1817 dev->name);
1818
1819 usb_set_intfdata(interface, zd);
1820 zd1201_enable(zd); /* zd1201 likes to startup enabled, */
1821 zd1201_disable(zd); /* interfering with all the wifis in range */
1822 return 0;
1823
1824 err_start:
1825 /* Leave the device in reset state */
1826 zd1201_docmd(zd, ZD1201_CMDCODE_INIT, 0, 0, 0);
1827 err_zd:
1828 usb_free_urb(zd->tx_urb);
1829 usb_free_urb(zd->rx_urb);
1830 free_netdev(dev);
1831 return err;
1832 }
1833
1834 static void zd1201_disconnect(struct usb_interface *interface)
1835 {
1836 struct zd1201 *zd=(struct zd1201 *)usb_get_intfdata(interface);
1837 struct hlist_node *node, *node2;
1838 struct zd1201_frag *frag;
1839
1840 if (!zd)
1841 return;
1842 usb_set_intfdata(interface, NULL);
1843
1844 hlist_for_each_entry_safe(frag, node, node2, &zd->fraglist, fnode) {
1845 hlist_del_init(&frag->fnode);
1846 kfree_skb(frag->skb);
1847 kfree(frag);
1848 }
1849
1850 if (zd->tx_urb) {
1851 usb_kill_urb(zd->tx_urb);
1852 usb_free_urb(zd->tx_urb);
1853 }
1854 if (zd->rx_urb) {
1855 usb_kill_urb(zd->rx_urb);
1856 usb_free_urb(zd->rx_urb);
1857 }
1858
1859 if (zd->dev) {
1860 unregister_netdev(zd->dev);
1861 free_netdev(zd->dev);
1862 }
1863 }
1864
1865 #ifdef CONFIG_PM
1866
1867 static int zd1201_suspend(struct usb_interface *interface,
1868 pm_message_t message)
1869 {
1870 struct zd1201 *zd = usb_get_intfdata(interface);
1871
1872 netif_device_detach(zd->dev);
1873
1874 zd->was_enabled = zd->mac_enabled;
1875
1876 if (zd->was_enabled)
1877 return zd1201_disable(zd);
1878 else
1879 return 0;
1880 }
1881
1882 static int zd1201_resume(struct usb_interface *interface)
1883 {
1884 struct zd1201 *zd = usb_get_intfdata(interface);
1885
1886 if (!zd || !zd->dev)
1887 return -ENODEV;
1888
1889 netif_device_attach(zd->dev);
1890
1891 if (zd->was_enabled)
1892 return zd1201_enable(zd);
1893 else
1894 return 0;
1895 }
1896
1897 #else
1898
1899 #define zd1201_suspend NULL
1900 #define zd1201_resume NULL
1901
1902 #endif
1903
1904 static struct usb_driver zd1201_usb = {
1905 .name = "zd1201",
1906 .probe = zd1201_probe,
1907 .disconnect = zd1201_disconnect,
1908 .id_table = zd1201_table,
1909 .suspend = zd1201_suspend,
1910 .resume = zd1201_resume,
1911 };
1912
1913 static int __init zd1201_init(void)
1914 {
1915 return usb_register(&zd1201_usb);
1916 }
1917
1918 static void __exit zd1201_cleanup(void)
1919 {
1920 usb_deregister(&zd1201_usb);
1921 }
1922
1923 module_init(zd1201_init);
1924 module_exit(zd1201_cleanup);
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