]> git.proxmox.com Git - mirror_ubuntu-artful-kernel.git/blob - drivers/net/wireless/zd1201.c
projects / mirror_ubuntu-artful-kernel.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
blame | history | raw | HEAD
[PATCH] zd1201: Possible NULL dereference
[mirror_ubuntu-artful-kernel.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/netdevice.h>
18 #include <linux/etherdevice.h>
19 #include <linux/wireless.h>
20 #include <net/iw_handler.h>
21 #include <linux/string.h>
22 #include <linux/if_arp.h>
23 #include <linux/firmware.h>
24 #include <net/ieee80211.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 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 static void zd1201_usbfree(struct urb *urb)
116 {
117 struct zd1201 *zd = urb->context;
118
119 switch(urb->status) {
120 case -EILSEQ:
121 case -ENODEV:
122 case -ETIME:
123 case -ENOENT:
124 case -EPIPE:
125 case -EOVERFLOW:
126 case -ESHUTDOWN:
127 dev_warn(&zd->usb->dev, "%s: urb failed: %d\n",
128 zd->dev->name, urb->status);
129 }
130
131 kfree(urb->transfer_buffer);
132 usb_free_urb(urb);
133 return;
134 }
135
136 /* cmdreq message:
137 u32 type
138 u16 cmd
139 u16 parm0
140 u16 parm1
141 u16 parm2
142 u8 pad[4]
143
144 total: 4 + 2 + 2 + 2 + 2 + 4 = 16
145 */
146 static int zd1201_docmd(struct zd1201 *zd, int cmd, int parm0,
147 int parm1, int parm2)
148 {
149 unsigned char *command;
150 int ret;
151 struct urb *urb;
152
153 command = kmalloc(16, GFP_ATOMIC);
154 if (!command)
155 return -ENOMEM;
156
157 *((__le32*)command) = cpu_to_le32(ZD1201_USB_CMDREQ);
158 *((__le16*)&command[4]) = cpu_to_le16(cmd);
159 *((__le16*)&command[6]) = cpu_to_le16(parm0);
160 *((__le16*)&command[8]) = cpu_to_le16(parm1);
161 *((__le16*)&command[10])= cpu_to_le16(parm2);
162
163 urb = usb_alloc_urb(0, GFP_ATOMIC);
164 if (!urb) {
165 kfree(command);
166 return -ENOMEM;
167 }
168 usb_fill_bulk_urb(urb, zd->usb, usb_sndbulkpipe(zd->usb, zd->endp_out2),
169 command, 16, zd1201_usbfree, zd);
170 ret = usb_submit_urb(urb, GFP_ATOMIC);
171 if (ret) {
172 kfree(command);
173 usb_free_urb(urb);
174 }
175
176 return ret;
177 }
178
179 /* Callback after sending out a packet */
180 static void zd1201_usbtx(struct urb *urb)
181 {
182 struct zd1201 *zd = urb->context;
183 netif_wake_queue(zd->dev);
184 return;
185 }
186
187 /* Incoming data */
188 static void zd1201_usbrx(struct urb *urb)
189 {
190 struct zd1201 *zd = urb->context;
191 int free = 0;
192 unsigned char *data = urb->transfer_buffer;
193 struct sk_buff *skb;
194 unsigned char type;
195
196 if (!zd)
197 return;
198
199 switch(urb->status) {
200 case -EILSEQ:
201 case -ENODEV:
202 case -ETIME:
203 case -ENOENT:
204 case -EPIPE:
205 case -EOVERFLOW:
206 case -ESHUTDOWN:
207 dev_warn(&zd->usb->dev, "%s: rx urb failed: %d\n",
208 zd->dev->name, urb->status);
209 free = 1;
210 goto exit;
211 }
212
213 if (urb->status != 0 || urb->actual_length == 0)
214 goto resubmit;
215
216 type = data[0];
217 if (type == ZD1201_PACKET_EVENTSTAT || type == ZD1201_PACKET_RESOURCE) {
218 memcpy(zd->rxdata, data, urb->actual_length);
219 zd->rxlen = urb->actual_length;
220 zd->rxdatas = 1;
221 wake_up(&zd->rxdataq);
222 }
223 /* Info frame */
224 if (type == ZD1201_PACKET_INQUIRE) {
225 int i = 0;
226 unsigned short infotype, framelen, copylen;
227 framelen = le16_to_cpu(*(__le16*)&data[4]);
228 infotype = le16_to_cpu(*(__le16*)&data[6]);
229
230 if (infotype == ZD1201_INF_LINKSTATUS) {
231 short linkstatus;
232
233 linkstatus = le16_to_cpu(*(__le16*)&data[8]);
234 switch(linkstatus) {
235 case 1:
236 netif_carrier_on(zd->dev);
237 break;
238 case 2:
239 netif_carrier_off(zd->dev);
240 break;
241 case 3:
242 netif_carrier_off(zd->dev);
243 break;
244 case 4:
245 netif_carrier_on(zd->dev);
246 break;
247 default:
248 netif_carrier_off(zd->dev);
249 }
250 goto resubmit;
251 }
252 if (infotype == ZD1201_INF_ASSOCSTATUS) {
253 short status = le16_to_cpu(*(__le16*)(data+8));
254 int event;
255 union iwreq_data wrqu;
256
257 switch (status) {
258 case ZD1201_ASSOCSTATUS_STAASSOC:
259 case ZD1201_ASSOCSTATUS_REASSOC:
260 event = IWEVREGISTERED;
261 break;
262 case ZD1201_ASSOCSTATUS_DISASSOC:
263 case ZD1201_ASSOCSTATUS_ASSOCFAIL:
264 case ZD1201_ASSOCSTATUS_AUTHFAIL:
265 default:
266 event = IWEVEXPIRED;
267 }
268 memcpy(wrqu.addr.sa_data, data+10, ETH_ALEN);
269 wrqu.addr.sa_family = ARPHRD_ETHER;
270
271 /* Send event to user space */
272 wireless_send_event(zd->dev, event, &wrqu, NULL);
273
274 goto resubmit;
275 }
276 if (infotype == ZD1201_INF_AUTHREQ) {
277 union iwreq_data wrqu;
278
279 memcpy(wrqu.addr.sa_data, data+8, ETH_ALEN);
280 wrqu.addr.sa_family = ARPHRD_ETHER;
281 /* There isn't a event that trully fits this request.
282 We assume that userspace will be smart enough to
283 see a new station being expired and sends back a
284 authstation ioctl to authorize it. */
285 wireless_send_event(zd->dev, IWEVEXPIRED, &wrqu, NULL);
286 goto resubmit;
287 }
288 /* Other infotypes are handled outside this handler */
289 zd->rxlen = 0;
290 while (i < urb->actual_length) {
291 copylen = le16_to_cpu(*(__le16*)&data[i+2]);
292 /* Sanity check, sometimes we get junk */
293 if (copylen+zd->rxlen > sizeof(zd->rxdata))
294 break;
295 memcpy(zd->rxdata+zd->rxlen, data+i+4, copylen);
296 zd->rxlen += copylen;
297 i += 64;
298 }
299 if (i >= urb->actual_length) {
300 zd->rxdatas = 1;
301 wake_up(&zd->rxdataq);
302 }
303 goto resubmit;
304 }
305 /* Actual data */
306 if (data[urb->actual_length-1] == ZD1201_PACKET_RXDATA) {
307 int datalen = urb->actual_length-1;
308 unsigned short len, fc, seq;
309 struct hlist_node *node;
310
311 len = ntohs(*(__be16 *)&data[datalen-2]);
312 if (len>datalen)
313 len=datalen;
314 fc = le16_to_cpu(*(__le16 *)&data[datalen-16]);
315 seq = le16_to_cpu(*(__le16 *)&data[datalen-24]);
316
317 if (zd->monitor) {
318 if (datalen < 24)
319 goto resubmit;
320 if (!(skb = dev_alloc_skb(datalen+24)))
321 goto resubmit;
322
323 memcpy(skb_put(skb, 2), &data[datalen-16], 2);
324 memcpy(skb_put(skb, 2), &data[datalen-2], 2);
325 memcpy(skb_put(skb, 6), &data[datalen-14], 6);
326 memcpy(skb_put(skb, 6), &data[datalen-22], 6);
327 memcpy(skb_put(skb, 6), &data[datalen-8], 6);
328 memcpy(skb_put(skb, 2), &data[datalen-24], 2);
329 memcpy(skb_put(skb, len), data, len);
330 skb->dev = zd->dev;
331 skb->dev->last_rx = jiffies;
332 skb->protocol = eth_type_trans(skb, zd->dev);
333 zd->stats.rx_packets++;
334 zd->stats.rx_bytes += skb->len;
335 netif_rx(skb);
336 goto resubmit;
337 }
338
339 if ((seq & IEEE80211_SCTL_FRAG) ||
340 (fc & IEEE80211_FCTL_MOREFRAGS)) {
341 struct zd1201_frag *frag = NULL;
342 char *ptr;
343
344 if (datalen<14)
345 goto resubmit;
346 if ((seq & IEEE80211_SCTL_FRAG) == 0) {
347 frag = kmalloc(sizeof(*frag), GFP_ATOMIC);
348 if (!frag)
349 goto resubmit;
350 skb = dev_alloc_skb(IEEE80211_DATA_LEN +14+2);
351 if (!skb) {
352 kfree(frag);
353 goto resubmit;
354 }
355 frag->skb = skb;
356 frag->seq = seq & IEEE80211_SCTL_SEQ;
357 skb_reserve(skb, 2);
358 memcpy(skb_put(skb, 12), &data[datalen-14], 12);
359 memcpy(skb_put(skb, 2), &data[6], 2);
360 memcpy(skb_put(skb, len), data+8, len);
361 hlist_add_head(&frag->fnode, &zd->fraglist);
362 goto resubmit;
363 }
364 hlist_for_each_entry(frag, node, &zd->fraglist, fnode)
365 if (frag->seq == (seq&IEEE80211_SCTL_SEQ))
366 break;
367 if (!frag)
368 goto resubmit;
369 skb = frag->skb;
370 ptr = skb_put(skb, len);
371 if (ptr)
372 memcpy(ptr, data+8, len);
373 if (fc & IEEE80211_FCTL_MOREFRAGS)
374 goto resubmit;
375 hlist_del_init(&frag->fnode);
376 kfree(frag);
377 } else {
378 if (datalen<14)
379 goto resubmit;
380 skb = dev_alloc_skb(len + 14 + 2);
381 if (!skb)
382 goto resubmit;
383 skb_reserve(skb, 2);
384 memcpy(skb_put(skb, 12), &data[datalen-14], 12);
385 memcpy(skb_put(skb, 2), &data[6], 2);
386 memcpy(skb_put(skb, len), data+8, len);
387 }
388 skb->dev = zd->dev;
389 skb->dev->last_rx = jiffies;
390 skb->protocol = eth_type_trans(skb, zd->dev);
391 zd->stats.rx_packets++;
392 zd->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 return;
411 }
412
413 static int zd1201_getconfig(struct zd1201 *zd, int rid, void *riddata,
414 unsigned int riddatalen)
415 {
416 int err;
417 int i = 0;
418 int code;
419 int rid_fid;
420 int length;
421 unsigned char *pdata;
422
423 zd->rxdatas = 0;
424 err = zd1201_docmd(zd, ZD1201_CMDCODE_ACCESS, rid, 0, 0);
425 if (err)
426 return err;
427
428 wait_event_interruptible(zd->rxdataq, zd->rxdatas);
429 if (!zd->rxlen)
430 return -EIO;
431
432 code = le16_to_cpu(*(__le16*)(&zd->rxdata[4]));
433 rid_fid = le16_to_cpu(*(__le16*)(&zd->rxdata[6]));
434 length = le16_to_cpu(*(__le16*)(&zd->rxdata[8]));
435 if (length > zd->rxlen)
436 length = zd->rxlen-6;
437
438 /* If access bit is not on, then error */
439 if ((code & ZD1201_ACCESSBIT) != ZD1201_ACCESSBIT || rid_fid != rid )
440 return -EINVAL;
441
442 /* Not enough buffer for allocating data */
443 if (riddatalen != (length - 4)) {
444 dev_dbg(&zd->usb->dev, "riddatalen mismatches, expected=%u, (packet=%u) length=%u, rid=0x%04X, rid_fid=0x%04X\n",
445 riddatalen, zd->rxlen, length, rid, rid_fid);
446 return -ENODATA;
447 }
448
449 zd->rxdatas = 0;
450 /* Issue SetRxRid commnd */
451 err = zd1201_docmd(zd, ZD1201_CMDCODE_SETRXRID, rid, 0, length);
452 if (err)
453 return err;
454
455 /* Receive RID record from resource packets */
456 wait_event_interruptible(zd->rxdataq, zd->rxdatas);
457 if (!zd->rxlen)
458 return -EIO;
459
460 if (zd->rxdata[zd->rxlen - 1] != ZD1201_PACKET_RESOURCE) {
461 dev_dbg(&zd->usb->dev, "Packet type mismatch: 0x%x not 0x3\n",
462 zd->rxdata[zd->rxlen-1]);
463 return -EINVAL;
464 }
465
466 /* Set the data pointer and received data length */
467 pdata = zd->rxdata;
468 length = zd->rxlen;
469
470 do {
471 int actual_length;
472
473 actual_length = (length > 64) ? 64 : length;
474
475 if (pdata[0] != 0x3) {
476 dev_dbg(&zd->usb->dev, "Rx Resource packet type error: %02X\n",
477 pdata[0]);
478 return -EINVAL;
479 }
480
481 if (actual_length != 64) {
482 /* Trim the last packet type byte */
483 actual_length--;
484 }
485
486 /* Skip the 4 bytes header (RID length and RID) */
487 if (i == 0) {
488 pdata += 8;
489 actual_length -= 8;
490 } else {
491 pdata += 4;
492 actual_length -= 4;
493 }
494
495 memcpy(riddata, pdata, actual_length);
496 riddata += actual_length;
497 pdata += actual_length;
498 length -= 64;
499 i++;
500 } while (length > 0);
501
502 return 0;
503 }
504
505 /*
506 * resreq:
507 * byte type
508 * byte sequence
509 * u16 reserved
510 * byte data[12]
511 * total: 16
512 */
513 static int zd1201_setconfig(struct zd1201 *zd, int rid, void *buf, int len, int wait)
514 {
515 int err;
516 unsigned char *request;
517 int reqlen;
518 char seq=0;
519 struct urb *urb;
520 gfp_t gfp_mask = wait ? GFP_NOIO : GFP_ATOMIC;
521
522 len += 4; /* first 4 are for header */
523
524 zd->rxdatas = 0;
525 zd->rxlen = 0;
526 for (seq=0; len > 0; seq++) {
527 request = kmalloc(16, gfp_mask);
528 if (!request)
529 return -ENOMEM;
530 urb = usb_alloc_urb(0, gfp_mask);
531 if (!urb) {
532 kfree(request);
533 return -ENOMEM;
534 }
535 memset(request, 0, 16);
536 reqlen = len>12 ? 12 : len;
537 request[0] = ZD1201_USB_RESREQ;
538 request[1] = seq;
539 request[2] = 0;
540 request[3] = 0;
541 if (request[1] == 0) {
542 /* add header */
543 *(__le16*)&request[4] = cpu_to_le16((len-2+1)/2);
544 *(__le16*)&request[6] = cpu_to_le16(rid);
545 memcpy(request+8, buf, reqlen-4);
546 buf += reqlen-4;
547 } else {
548 memcpy(request+4, buf, reqlen);
549 buf += reqlen;
550 }
551
552 len -= reqlen;
553
554 usb_fill_bulk_urb(urb, zd->usb, usb_sndbulkpipe(zd->usb,
555 zd->endp_out2), request, 16, zd1201_usbfree, zd);
556 err = usb_submit_urb(urb, gfp_mask);
557 if (err)
558 goto err;
559 }
560
561 request = kmalloc(16, gfp_mask);
562 if (!request)
563 return -ENOMEM;
564 urb = usb_alloc_urb(0, gfp_mask);
565 if (!urb) {
566 kfree(request);
567 return -ENOMEM;
568 }
569 *((__le32*)request) = cpu_to_le32(ZD1201_USB_CMDREQ);
570 *((__le16*)&request[4]) =
571 cpu_to_le16(ZD1201_CMDCODE_ACCESS|ZD1201_ACCESSBIT);
572 *((__le16*)&request[6]) = cpu_to_le16(rid);
573 *((__le16*)&request[8]) = cpu_to_le16(0);
574 *((__le16*)&request[10]) = cpu_to_le16(0);
575 usb_fill_bulk_urb(urb, zd->usb, usb_sndbulkpipe(zd->usb, zd->endp_out2),
576 request, 16, zd1201_usbfree, zd);
577 err = usb_submit_urb(urb, gfp_mask);
578 if (err)
579 goto err;
580
581 if (wait) {
582 wait_event_interruptible(zd->rxdataq, zd->rxdatas);
583 if (!zd->rxlen || le16_to_cpu(*(__le16*)&zd->rxdata[6]) != rid) {
584 dev_dbg(&zd->usb->dev, "wrong or no RID received\n");
585 }
586 }
587
588 return 0;
589 err:
590 kfree(request);
591 usb_free_urb(urb);
592 return err;
593 }
594
595 static inline int zd1201_getconfig16(struct zd1201 *zd, int rid, short *val)
596 {
597 int err;
598 __le16 zdval;
599
600 err = zd1201_getconfig(zd, rid, &zdval, sizeof(__le16));
601 if (err)
602 return err;
603 *val = le16_to_cpu(zdval);
604 return 0;
605 }
606
607 static inline int zd1201_setconfig16(struct zd1201 *zd, int rid, short val)
608 {
609 __le16 zdval = cpu_to_le16(val);
610 return (zd1201_setconfig(zd, rid, &zdval, sizeof(__le16), 1));
611 }
612
613 static int zd1201_drvr_start(struct zd1201 *zd)
614 {
615 int err, i;
616 short max;
617 __le16 zdmax;
618 unsigned char *buffer;
619
620 buffer = kzalloc(ZD1201_RXSIZE, GFP_KERNEL);
621 if (!buffer)
622 return -ENOMEM;
623
624 usb_fill_bulk_urb(zd->rx_urb, zd->usb,
625 usb_rcvbulkpipe(zd->usb, zd->endp_in), buffer, ZD1201_RXSIZE,
626 zd1201_usbrx, zd);
627
628 err = usb_submit_urb(zd->rx_urb, GFP_KERNEL);
629 if (err)
630 goto err_buffer;
631
632 err = zd1201_docmd(zd, ZD1201_CMDCODE_INIT, 0, 0, 0);
633 if (err)
634 goto err_urb;
635
636 err = zd1201_getconfig(zd, ZD1201_RID_CNFMAXTXBUFFERNUMBER, &zdmax,
637 sizeof(__le16));
638 if (err)
639 goto err_urb;
640
641 max = le16_to_cpu(zdmax);
642 for (i=0; i<max; i++) {
643 err = zd1201_docmd(zd, ZD1201_CMDCODE_ALLOC, 1514, 0, 0);
644 if (err)
645 goto err_urb;
646 }
647
648 return 0;
649
650 err_urb:
651 usb_kill_urb(zd->rx_urb);
652 return err;
653 err_buffer:
654 kfree(buffer);
655 return err;
656 }
657
658 /* Magic alert: The firmware doesn't seem to like the MAC state being
659 * toggled in promisc (aka monitor) mode.
660 * (It works a number of times, but will halt eventually)
661 * So we turn it of before disabling and on after enabling if needed.
662 */
663 static int zd1201_enable(struct zd1201 *zd)
664 {
665 int err;
666
667 if (zd->mac_enabled)
668 return 0;
669
670 err = zd1201_docmd(zd, ZD1201_CMDCODE_ENABLE, 0, 0, 0);
671 if (!err)
672 zd->mac_enabled = 1;
673
674 if (zd->monitor)
675 err = zd1201_setconfig16(zd, ZD1201_RID_PROMISCUOUSMODE, 1);
676
677 return err;
678 }
679
680 static int zd1201_disable(struct zd1201 *zd)
681 {
682 int err;
683
684 if (!zd->mac_enabled)
685 return 0;
686 if (zd->monitor) {
687 err = zd1201_setconfig16(zd, ZD1201_RID_PROMISCUOUSMODE, 0);
688 if (err)
689 return err;
690 }
691
692 err = zd1201_docmd(zd, ZD1201_CMDCODE_DISABLE, 0, 0, 0);
693 if (!err)
694 zd->mac_enabled = 0;
695 return err;
696 }
697
698 static int zd1201_mac_reset(struct zd1201 *zd)
699 {
700 if (!zd->mac_enabled)
701 return 0;
702 zd1201_disable(zd);
703 return zd1201_enable(zd);
704 }
705
706 static int zd1201_join(struct zd1201 *zd, char *essid, int essidlen)
707 {
708 int err, val;
709 char buf[IW_ESSID_MAX_SIZE+2];
710
711 err = zd1201_disable(zd);
712 if (err)
713 return err;
714
715 val = ZD1201_CNFAUTHENTICATION_OPENSYSTEM;
716 val |= ZD1201_CNFAUTHENTICATION_SHAREDKEY;
717 err = zd1201_setconfig16(zd, ZD1201_RID_CNFAUTHENTICATION, val);
718 if (err)
719 return err;
720
721 *(__le16 *)buf = cpu_to_le16(essidlen);
722 memcpy(buf+2, essid, essidlen);
723 if (!zd->ap) { /* Normal station */
724 err = zd1201_setconfig(zd, ZD1201_RID_CNFDESIREDSSID, buf,
725 IW_ESSID_MAX_SIZE+2, 1);
726 if (err)
727 return err;
728 } else { /* AP */
729 err = zd1201_setconfig(zd, ZD1201_RID_CNFOWNSSID, buf,
730 IW_ESSID_MAX_SIZE+2, 1);
731 if (err)
732 return err;
733 }
734
735 err = zd1201_setconfig(zd, ZD1201_RID_CNFOWNMACADDR,
736 zd->dev->dev_addr, zd->dev->addr_len, 1);
737 if (err)
738 return err;
739
740 err = zd1201_enable(zd);
741 if (err)
742 return err;
743
744 msleep(100);
745 return 0;
746 }
747
748 static int zd1201_net_open(struct net_device *dev)
749 {
750 struct zd1201 *zd = (struct zd1201 *)dev->priv;
751
752 /* Start MAC with wildcard if no essid set */
753 if (!zd->mac_enabled)
754 zd1201_join(zd, zd->essid, zd->essidlen);
755 netif_start_queue(dev);
756
757 return 0;
758 }
759
760 static int zd1201_net_stop(struct net_device *dev)
761 {
762 netif_stop_queue(dev);
763 return 0;
764 }
765
766 /*
767 RFC 1042 encapsulates Ethernet frames in 802.11 frames
768 by prefixing them with 0xaa, 0xaa, 0x03) followed by a SNAP OID of 0
769 (0x00, 0x00, 0x00). Zd requires an additional padding, copy
770 of ethernet addresses, length of the standard RFC 1042 packet
771 and a command byte (which is nul for tx).
772
773 tx frame (from Wlan NG):
774 RFC 1042:
775 llc 0xAA 0xAA 0x03 (802.2 LLC)
776 snap 0x00 0x00 0x00 (Ethernet encapsulated)
777 type 2 bytes, Ethernet type field
778 payload (minus eth header)
779 Zydas specific:
780 padding 1B if (skb->len+8+1)%64==0
781 Eth MAC addr 12 bytes, Ethernet MAC addresses
782 length 2 bytes, RFC 1042 packet length
783 (llc+snap+type+payload)
784 zd 1 null byte, zd1201 packet type
785 */
786 static int zd1201_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
787 {
788 struct zd1201 *zd = (struct zd1201 *)dev->priv;
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 zd->stats.tx_dropped++;
795 kfree_skb(skb);
796 return 0;
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 memcpy(txbuf+6, skb->data+12, skb->len-12);
813 if (pad)
814 txbuf[skb->len-12+6]=0;
815 memcpy(txbuf+skb->len-12+6+pad, skb->data, 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 zd->stats.tx_errors++;
825 netif_start_queue(dev);
826 return err;
827 }
828 zd->stats.tx_packets++;
829 zd->stats.tx_bytes += skb->len;
830 dev->trans_start = jiffies;
831 kfree_skb(skb);
832
833 return 0;
834 }
835
836 static void zd1201_tx_timeout(struct net_device *dev)
837 {
838 struct zd1201 *zd = (struct zd1201 *)dev->priv;
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 zd->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 = (struct zd1201 *)dev->priv;
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 net_device_stats *zd1201_get_stats(struct net_device *dev)
869 {
870 struct zd1201 *zd = (struct zd1201 *)dev->priv;
871
872 return &zd->stats;
873 }
874
875 static struct iw_statistics *zd1201_get_wireless_stats(struct net_device *dev)
876 {
877 struct zd1201 *zd = (struct zd1201 *)dev->priv;
878
879 return &zd->iwstats;
880 }
881
882 static void zd1201_set_multicast(struct net_device *dev)
883 {
884 struct zd1201 *zd = (struct zd1201 *)dev->priv;
885 struct dev_mc_list *mc = dev->mc_list;
886 unsigned char reqbuf[ETH_ALEN*ZD1201_MAXMULTI];
887 int i;
888
889 if (dev->mc_count > ZD1201_MAXMULTI)
890 return;
891
892 for (i=0; i<dev->mc_count; i++) {
893 memcpy(reqbuf+i*ETH_ALEN, mc->dmi_addr, ETH_ALEN);
894 mc = mc->next;
895 }
896 zd1201_setconfig(zd, ZD1201_RID_CNFGROUPADDRESS, reqbuf,
897 dev->mc_count*ETH_ALEN, 0);
898
899 }
900
901 static int zd1201_config_commit(struct net_device *dev,
902 struct iw_request_info *info, struct iw_point *data, char *essid)
903 {
904 struct zd1201 *zd = (struct zd1201 *)dev->priv;
905
906 return zd1201_mac_reset(zd);
907 }
908
909 static int zd1201_get_name(struct net_device *dev,
910 struct iw_request_info *info, char *name, char *extra)
911 {
912 strcpy(name, "IEEE 802.11b");
913 return 0;
914 }
915
916 static int zd1201_set_freq(struct net_device *dev,
917 struct iw_request_info *info, struct iw_freq *freq, char *extra)
918 {
919 struct zd1201 *zd = (struct zd1201 *)dev->priv;
920 short channel = 0;
921 int err;
922
923 if (freq->e == 0)
924 channel = freq->m;
925 else {
926 if (freq->m >= 2482)
927 channel = 14;
928 if (freq->m >= 2407)
929 channel = (freq->m-2407)/5;
930 }
931
932 err = zd1201_setconfig16(zd, ZD1201_RID_CNFOWNCHANNEL, channel);
933 if (err)
934 return err;
935
936 zd1201_mac_reset(zd);
937
938 return 0;
939 }
940
941 static int zd1201_get_freq(struct net_device *dev,
942 struct iw_request_info *info, struct iw_freq *freq, char *extra)
943 {
944 struct zd1201 *zd = (struct zd1201 *)dev->priv;
945 short channel;
946 int err;
947
948 err = zd1201_getconfig16(zd, ZD1201_RID_CNFOWNCHANNEL, &channel);
949 if (err)
950 return err;
951 freq->e = 0;
952 freq->m = channel;
953
954 return 0;
955 }
956
957 static int zd1201_set_mode(struct net_device *dev,
958 struct iw_request_info *info, __u32 *mode, char *extra)
959 {
960 struct zd1201 *zd = (struct zd1201 *)dev->priv;
961 short porttype, monitor = 0;
962 unsigned char buffer[IW_ESSID_MAX_SIZE+2];
963 int err;
964
965 if (zd->ap) {
966 if (*mode != IW_MODE_MASTER)
967 return -EINVAL;
968 return 0;
969 }
970
971 err = zd1201_setconfig16(zd, ZD1201_RID_PROMISCUOUSMODE, 0);
972 if (err)
973 return err;
974 zd->dev->type = ARPHRD_ETHER;
975 switch(*mode) {
976 case IW_MODE_MONITOR:
977 monitor = 1;
978 zd->dev->type = ARPHRD_IEEE80211;
979 /* Make sure we are no longer associated with by
980 setting an 'impossible' essid.
981 (otherwise we mess up firmware)
982 */
983 zd1201_join(zd, "\0-*#\0", 5);
984 /* Put port in pIBSS */
985 case 8: /* No pseudo-IBSS in wireless extensions (yet) */
986 porttype = ZD1201_PORTTYPE_PSEUDOIBSS;
987 break;
988 case IW_MODE_ADHOC:
989 porttype = ZD1201_PORTTYPE_IBSS;
990 break;
991 case IW_MODE_INFRA:
992 porttype = ZD1201_PORTTYPE_BSS;
993 break;
994 default:
995 return -EINVAL;
996 }
997
998 err = zd1201_setconfig16(zd, ZD1201_RID_CNFPORTTYPE, porttype);
999 if (err)
1000 return err;
1001 if (zd->monitor && !monitor) {
1002 zd1201_disable(zd);
1003 *(__le16 *)buffer = cpu_to_le16(zd->essidlen);
1004 memcpy(buffer+2, zd->essid, zd->essidlen);
1005 err = zd1201_setconfig(zd, ZD1201_RID_CNFDESIREDSSID,
1006 buffer, IW_ESSID_MAX_SIZE+2, 1);
1007 if (err)
1008 return err;
1009 }
1010 zd->monitor = monitor;
1011 /* If monitor mode is set we don't actually turn it on here since it
1012 * is done during mac reset anyway (see zd1201_mac_enable).
1013 */
1014 zd1201_mac_reset(zd);
1015
1016 return 0;
1017 }
1018
1019 static int zd1201_get_mode(struct net_device *dev,
1020 struct iw_request_info *info, __u32 *mode, char *extra)
1021 {
1022 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1023 short porttype;
1024 int err;
1025
1026 err = zd1201_getconfig16(zd, ZD1201_RID_CNFPORTTYPE, &porttype);
1027 if (err)
1028 return err;
1029 switch(porttype) {
1030 case ZD1201_PORTTYPE_IBSS:
1031 *mode = IW_MODE_ADHOC;
1032 break;
1033 case ZD1201_PORTTYPE_BSS:
1034 *mode = IW_MODE_INFRA;
1035 break;
1036 case ZD1201_PORTTYPE_WDS:
1037 *mode = IW_MODE_REPEAT;
1038 break;
1039 case ZD1201_PORTTYPE_PSEUDOIBSS:
1040 *mode = 8;/* No Pseudo-IBSS... */
1041 break;
1042 case ZD1201_PORTTYPE_AP:
1043 *mode = IW_MODE_MASTER;
1044 break;
1045 default:
1046 dev_dbg(&zd->usb->dev, "Unknown porttype: %d\n",
1047 porttype);
1048 *mode = IW_MODE_AUTO;
1049 }
1050 if (zd->monitor)
1051 *mode = IW_MODE_MONITOR;
1052
1053 return 0;
1054 }
1055
1056 static int zd1201_get_range(struct net_device *dev,
1057 struct iw_request_info *info, struct iw_point *wrq, char *extra)
1058 {
1059 struct iw_range *range = (struct iw_range *)extra;
1060
1061 wrq->length = sizeof(struct iw_range);
1062 memset(range, 0, sizeof(struct iw_range));
1063 range->we_version_compiled = WIRELESS_EXT;
1064 range->we_version_source = WIRELESS_EXT;
1065
1066 range->max_qual.qual = 128;
1067 range->max_qual.level = 128;
1068 range->max_qual.noise = 128;
1069 range->max_qual.updated = 7;
1070
1071 range->encoding_size[0] = 5;
1072 range->encoding_size[1] = 13;
1073 range->num_encoding_sizes = 2;
1074 range->max_encoding_tokens = ZD1201_NUMKEYS;
1075
1076 range->num_bitrates = 4;
1077 range->bitrate[0] = 1000000;
1078 range->bitrate[1] = 2000000;
1079 range->bitrate[2] = 5500000;
1080 range->bitrate[3] = 11000000;
1081
1082 range->min_rts = 0;
1083 range->min_frag = ZD1201_FRAGMIN;
1084 range->max_rts = ZD1201_RTSMAX;
1085 range->min_frag = ZD1201_FRAGMAX;
1086
1087 return 0;
1088 }
1089
1090 /* Little bit of magic here: we only get the quality if we poll
1091 * for it, and we never get an actual request to trigger such
1092 * a poll. Therefore we 'assume' that the user will soon ask for
1093 * the stats after asking the bssid.
1094 */
1095 static int zd1201_get_wap(struct net_device *dev,
1096 struct iw_request_info *info, struct sockaddr *ap_addr, char *extra)
1097 {
1098 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1099 unsigned char buffer[6];
1100
1101 if (!zd1201_getconfig(zd, ZD1201_RID_COMMSQUALITY, buffer, 6)) {
1102 /* Unfortunately the quality and noise reported is useless.
1103 they seem to be accumulators that increase until you
1104 read them, unless we poll on a fixed interval we can't
1105 use them
1106 */
1107 /*zd->iwstats.qual.qual = le16_to_cpu(((__le16 *)buffer)[0]);*/
1108 zd->iwstats.qual.level = le16_to_cpu(((__le16 *)buffer)[1]);
1109 /*zd->iwstats.qual.noise = le16_to_cpu(((__le16 *)buffer)[2]);*/
1110 zd->iwstats.qual.updated = 2;
1111 }
1112
1113 return zd1201_getconfig(zd, ZD1201_RID_CURRENTBSSID, ap_addr->sa_data, 6);
1114 }
1115
1116 static int zd1201_set_scan(struct net_device *dev,
1117 struct iw_request_info *info, struct iw_point *srq, char *extra)
1118 {
1119 /* We do everything in get_scan */
1120 return 0;
1121 }
1122
1123 static int zd1201_get_scan(struct net_device *dev,
1124 struct iw_request_info *info, struct iw_point *srq, char *extra)
1125 {
1126 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1127 int err, i, j, enabled_save;
1128 struct iw_event iwe;
1129 char *cev = extra;
1130 char *end_buf = extra + IW_SCAN_MAX_DATA;
1131
1132 /* No scanning in AP mode */
1133 if (zd->ap)
1134 return -EOPNOTSUPP;
1135
1136 /* Scan doesn't seem to work if disabled */
1137 enabled_save = zd->mac_enabled;
1138 zd1201_enable(zd);
1139
1140 zd->rxdatas = 0;
1141 err = zd1201_docmd(zd, ZD1201_CMDCODE_INQUIRE,
1142 ZD1201_INQ_SCANRESULTS, 0, 0);
1143 if (err)
1144 return err;
1145
1146 wait_event_interruptible(zd->rxdataq, zd->rxdatas);
1147 if (!zd->rxlen)
1148 return -EIO;
1149
1150 if (le16_to_cpu(*(__le16*)&zd->rxdata[2]) != ZD1201_INQ_SCANRESULTS)
1151 return -EIO;
1152
1153 for(i=8; i<zd->rxlen; i+=62) {
1154 iwe.cmd = SIOCGIWAP;
1155 iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
1156 memcpy(iwe.u.ap_addr.sa_data, zd->rxdata+i+6, 6);
1157 cev = iwe_stream_add_event(cev, end_buf, &iwe, IW_EV_ADDR_LEN);
1158
1159 iwe.cmd = SIOCGIWESSID;
1160 iwe.u.data.length = zd->rxdata[i+16];
1161 iwe.u.data.flags = 1;
1162 cev = iwe_stream_add_point(cev, end_buf, &iwe, zd->rxdata+i+18);
1163
1164 iwe.cmd = SIOCGIWMODE;
1165 if (zd->rxdata[i+14]&0x01)
1166 iwe.u.mode = IW_MODE_MASTER;
1167 else
1168 iwe.u.mode = IW_MODE_ADHOC;
1169 cev = iwe_stream_add_event(cev, end_buf, &iwe, IW_EV_UINT_LEN);
1170
1171 iwe.cmd = SIOCGIWFREQ;
1172 iwe.u.freq.m = zd->rxdata[i+0];
1173 iwe.u.freq.e = 0;
1174 cev = iwe_stream_add_event(cev, end_buf, &iwe, IW_EV_FREQ_LEN);
1175
1176 iwe.cmd = SIOCGIWRATE;
1177 iwe.u.bitrate.fixed = 0;
1178 iwe.u.bitrate.disabled = 0;
1179 for (j=0; j<10; j++) if (zd->rxdata[i+50+j]) {
1180 iwe.u.bitrate.value = (zd->rxdata[i+50+j]&0x7f)*500000;
1181 cev=iwe_stream_add_event(cev, end_buf, &iwe,
1182 IW_EV_PARAM_LEN);
1183 }
1184
1185 iwe.cmd = SIOCGIWENCODE;
1186 iwe.u.data.length = 0;
1187 if (zd->rxdata[i+14]&0x10)
1188 iwe.u.data.flags = IW_ENCODE_ENABLED;
1189 else
1190 iwe.u.data.flags = IW_ENCODE_DISABLED;
1191 cev = iwe_stream_add_point(cev, end_buf, &iwe, NULL);
1192
1193 iwe.cmd = IWEVQUAL;
1194 iwe.u.qual.qual = zd->rxdata[i+4];
1195 iwe.u.qual.noise= zd->rxdata[i+2]/10-100;
1196 iwe.u.qual.level = (256+zd->rxdata[i+4]*100)/255-100;
1197 iwe.u.qual.updated = 7;
1198 cev = iwe_stream_add_event(cev, end_buf, &iwe, IW_EV_QUAL_LEN);
1199 }
1200
1201 if (!enabled_save)
1202 zd1201_disable(zd);
1203
1204 srq->length = cev - extra;
1205 srq->flags = 0;
1206
1207 return 0;
1208 }
1209
1210 static int zd1201_set_essid(struct net_device *dev,
1211 struct iw_request_info *info, struct iw_point *data, char *essid)
1212 {
1213 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1214
1215 if (data->length > IW_ESSID_MAX_SIZE)
1216 return -EINVAL;
1217 if (data->length < 1)
1218 data->length = 1;
1219 zd->essidlen = data->length;
1220 memset(zd->essid, 0, IW_ESSID_MAX_SIZE+1);
1221 memcpy(zd->essid, essid, data->length);
1222 return zd1201_join(zd, zd->essid, zd->essidlen);
1223 }
1224
1225 static int zd1201_get_essid(struct net_device *dev,
1226 struct iw_request_info *info, struct iw_point *data, char *essid)
1227 {
1228 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1229
1230 memcpy(essid, zd->essid, zd->essidlen);
1231 data->flags = 1;
1232 data->length = zd->essidlen;
1233
1234 return 0;
1235 }
1236
1237 static int zd1201_get_nick(struct net_device *dev, struct iw_request_info *info,
1238 struct iw_point *data, char *nick)
1239 {
1240 strcpy(nick, "zd1201");
1241 data->flags = 1;
1242 data->length = strlen(nick);
1243 return 0;
1244 }
1245
1246 static int zd1201_set_rate(struct net_device *dev,
1247 struct iw_request_info *info, struct iw_param *rrq, char *extra)
1248 {
1249 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1250 short rate;
1251 int err;
1252
1253 switch (rrq->value) {
1254 case 1000000:
1255 rate = ZD1201_RATEB1;
1256 break;
1257 case 2000000:
1258 rate = ZD1201_RATEB2;
1259 break;
1260 case 5500000:
1261 rate = ZD1201_RATEB5;
1262 break;
1263 case 11000000:
1264 default:
1265 rate = ZD1201_RATEB11;
1266 break;
1267 }
1268 if (!rrq->fixed) { /* Also enable all lower bitrates */
1269 rate |= rate-1;
1270 }
1271
1272 err = zd1201_setconfig16(zd, ZD1201_RID_TXRATECNTL, rate);
1273 if (err)
1274 return err;
1275
1276 return zd1201_mac_reset(zd);
1277 }
1278
1279 static int zd1201_get_rate(struct net_device *dev,
1280 struct iw_request_info *info, struct iw_param *rrq, char *extra)
1281 {
1282 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1283 short rate;
1284 int err;
1285
1286 err = zd1201_getconfig16(zd, ZD1201_RID_CURRENTTXRATE, &rate);
1287 if (err)
1288 return err;
1289
1290 switch(rate) {
1291 case 1:
1292 rrq->value = 1000000;
1293 break;
1294 case 2:
1295 rrq->value = 2000000;
1296 break;
1297 case 5:
1298 rrq->value = 5500000;
1299 break;
1300 case 11:
1301 rrq->value = 11000000;
1302 break;
1303 default:
1304 rrq->value = 0;
1305 }
1306 rrq->fixed = 0;
1307 rrq->disabled = 0;
1308
1309 return 0;
1310 }
1311
1312 static int zd1201_set_rts(struct net_device *dev, struct iw_request_info *info,
1313 struct iw_param *rts, char *extra)
1314 {
1315 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1316 int err;
1317 short val = rts->value;
1318
1319 if (rts->disabled || !rts->fixed)
1320 val = ZD1201_RTSMAX;
1321 if (val > ZD1201_RTSMAX)
1322 return -EINVAL;
1323 if (val < 0)
1324 return -EINVAL;
1325
1326 err = zd1201_setconfig16(zd, ZD1201_RID_CNFRTSTHRESHOLD, val);
1327 if (err)
1328 return err;
1329 return zd1201_mac_reset(zd);
1330 }
1331
1332 static int zd1201_get_rts(struct net_device *dev, struct iw_request_info *info,
1333 struct iw_param *rts, char *extra)
1334 {
1335 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1336 short rtst;
1337 int err;
1338
1339 err = zd1201_getconfig16(zd, ZD1201_RID_CNFRTSTHRESHOLD, &rtst);
1340 if (err)
1341 return err;
1342 rts->value = rtst;
1343 rts->disabled = (rts->value == ZD1201_RTSMAX);
1344 rts->fixed = 1;
1345
1346 return 0;
1347 }
1348
1349 static int zd1201_set_frag(struct net_device *dev, struct iw_request_info *info,
1350 struct iw_param *frag, char *extra)
1351 {
1352 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1353 int err;
1354 short val = frag->value;
1355
1356 if (frag->disabled || !frag->fixed)
1357 val = ZD1201_FRAGMAX;
1358 if (val > ZD1201_FRAGMAX)
1359 return -EINVAL;
1360 if (val < ZD1201_FRAGMIN)
1361 return -EINVAL;
1362 if (val & 1)
1363 return -EINVAL;
1364 err = zd1201_setconfig16(zd, ZD1201_RID_CNFFRAGTHRESHOLD, val);
1365 if (err)
1366 return err;
1367 return zd1201_mac_reset(zd);
1368 }
1369
1370 static int zd1201_get_frag(struct net_device *dev, struct iw_request_info *info,
1371 struct iw_param *frag, char *extra)
1372 {
1373 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1374 short fragt;
1375 int err;
1376
1377 err = zd1201_getconfig16(zd, ZD1201_RID_CNFFRAGTHRESHOLD, &fragt);
1378 if (err)
1379 return err;
1380 frag->value = fragt;
1381 frag->disabled = (frag->value == ZD1201_FRAGMAX);
1382 frag->fixed = 1;
1383
1384 return 0;
1385 }
1386
1387 static int zd1201_set_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_get_retry(struct net_device *dev,
1394 struct iw_request_info *info, struct iw_param *rrq, char *extra)
1395 {
1396 return 0;
1397 }
1398
1399 static int zd1201_set_encode(struct net_device *dev,
1400 struct iw_request_info *info, struct iw_point *erq, char *key)
1401 {
1402 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1403 short i;
1404 int err, rid;
1405
1406 if (erq->length > ZD1201_MAXKEYLEN)
1407 return -EINVAL;
1408
1409 i = (erq->flags & IW_ENCODE_INDEX)-1;
1410 if (i == -1) {
1411 err = zd1201_getconfig16(zd,ZD1201_RID_CNFDEFAULTKEYID,&i);
1412 if (err)
1413 return err;
1414 } else {
1415 err = zd1201_setconfig16(zd, ZD1201_RID_CNFDEFAULTKEYID, i);
1416 if (err)
1417 return err;
1418 }
1419
1420 if (i < 0 || i >= ZD1201_NUMKEYS)
1421 return -EINVAL;
1422
1423 rid = ZD1201_RID_CNFDEFAULTKEY0 + i;
1424 err = zd1201_setconfig(zd, rid, key, erq->length, 1);
1425 if (err)
1426 return err;
1427 zd->encode_keylen[i] = erq->length;
1428 memcpy(zd->encode_keys[i], key, erq->length);
1429
1430 i=0;
1431 if (!(erq->flags & IW_ENCODE_DISABLED & IW_ENCODE_MODE)) {
1432 i |= 0x01;
1433 zd->encode_enabled = 1;
1434 } else
1435 zd->encode_enabled = 0;
1436 if (erq->flags & IW_ENCODE_RESTRICTED & IW_ENCODE_MODE) {
1437 i |= 0x02;
1438 zd->encode_restricted = 1;
1439 } else
1440 zd->encode_restricted = 0;
1441 err = zd1201_setconfig16(zd, ZD1201_RID_CNFWEBFLAGS, i);
1442 if (err)
1443 return err;
1444
1445 if (zd->encode_enabled)
1446 i = ZD1201_CNFAUTHENTICATION_SHAREDKEY;
1447 else
1448 i = ZD1201_CNFAUTHENTICATION_OPENSYSTEM;
1449 err = zd1201_setconfig16(zd, ZD1201_RID_CNFAUTHENTICATION, i);
1450 if (err)
1451 return err;
1452
1453 return zd1201_mac_reset(zd);
1454 }
1455
1456 static int zd1201_get_encode(struct net_device *dev,
1457 struct iw_request_info *info, struct iw_point *erq, char *key)
1458 {
1459 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1460 short i;
1461 int err;
1462
1463 if (zd->encode_enabled)
1464 erq->flags = IW_ENCODE_ENABLED;
1465 else
1466 erq->flags = IW_ENCODE_DISABLED;
1467 if (zd->encode_restricted)
1468 erq->flags |= IW_ENCODE_RESTRICTED;
1469 else
1470 erq->flags |= IW_ENCODE_OPEN;
1471
1472 i = (erq->flags & IW_ENCODE_INDEX) -1;
1473 if (i == -1) {
1474 err = zd1201_getconfig16(zd, ZD1201_RID_CNFDEFAULTKEYID, &i);
1475 if (err)
1476 return err;
1477 }
1478 if (i<0 || i>= ZD1201_NUMKEYS)
1479 return -EINVAL;
1480
1481 erq->flags |= i+1;
1482
1483 erq->length = zd->encode_keylen[i];
1484 memcpy(key, zd->encode_keys[i], erq->length);
1485
1486 return 0;
1487 }
1488
1489 static int zd1201_set_power(struct net_device *dev,
1490 struct iw_request_info *info, struct iw_param *vwrq, char *extra)
1491 {
1492 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1493 short enabled, duration, level;
1494 int err;
1495
1496 enabled = vwrq->disabled ? 0 : 1;
1497 if (enabled) {
1498 if (vwrq->flags & IW_POWER_PERIOD) {
1499 duration = vwrq->value;
1500 err = zd1201_setconfig16(zd,
1501 ZD1201_RID_CNFMAXSLEEPDURATION, duration);
1502 if (err)
1503 return err;
1504 goto out;
1505 }
1506 if (vwrq->flags & IW_POWER_TIMEOUT) {
1507 err = zd1201_getconfig16(zd,
1508 ZD1201_RID_CNFMAXSLEEPDURATION, &duration);
1509 if (err)
1510 return err;
1511 level = vwrq->value * 4 / duration;
1512 if (level > 4)
1513 level = 4;
1514 if (level < 0)
1515 level = 0;
1516 err = zd1201_setconfig16(zd, ZD1201_RID_CNFPMEPS,
1517 level);
1518 if (err)
1519 return err;
1520 goto out;
1521 }
1522 return -EINVAL;
1523 }
1524 out:
1525 return zd1201_setconfig16(zd, ZD1201_RID_CNFPMENABLED, enabled);
1526 }
1527
1528 static int zd1201_get_power(struct net_device *dev,
1529 struct iw_request_info *info, struct iw_param *vwrq, char *extra)
1530 {
1531 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1532 short enabled, level, duration;
1533 int err;
1534
1535 err = zd1201_getconfig16(zd, ZD1201_RID_CNFPMENABLED, &enabled);
1536 if (err)
1537 return err;
1538 err = zd1201_getconfig16(zd, ZD1201_RID_CNFPMEPS, &level);
1539 if (err)
1540 return err;
1541 err = zd1201_getconfig16(zd, ZD1201_RID_CNFMAXSLEEPDURATION, &duration);
1542 if (err)
1543 return err;
1544 vwrq->disabled = enabled ? 0 : 1;
1545 if (vwrq->flags & IW_POWER_TYPE) {
1546 if (vwrq->flags & IW_POWER_PERIOD) {
1547 vwrq->value = duration;
1548 vwrq->flags = IW_POWER_PERIOD;
1549 } else {
1550 vwrq->value = duration * level / 4;
1551 vwrq->flags = IW_POWER_TIMEOUT;
1552 }
1553 }
1554 if (vwrq->flags & IW_POWER_MODE) {
1555 if (enabled && level)
1556 vwrq->flags = IW_POWER_UNICAST_R;
1557 else
1558 vwrq->flags = IW_POWER_ALL_R;
1559 }
1560
1561 return 0;
1562 }
1563
1564
1565 static const iw_handler zd1201_iw_handler[] =
1566 {
1567 (iw_handler) zd1201_config_commit, /* SIOCSIWCOMMIT */
1568 (iw_handler) zd1201_get_name, /* SIOCGIWNAME */
1569 (iw_handler) NULL, /* SIOCSIWNWID */
1570 (iw_handler) NULL, /* SIOCGIWNWID */
1571 (iw_handler) zd1201_set_freq, /* SIOCSIWFREQ */
1572 (iw_handler) zd1201_get_freq, /* SIOCGIWFREQ */
1573 (iw_handler) zd1201_set_mode, /* SIOCSIWMODE */
1574 (iw_handler) zd1201_get_mode, /* SIOCGIWMODE */
1575 (iw_handler) NULL, /* SIOCSIWSENS */
1576 (iw_handler) NULL, /* SIOCGIWSENS */
1577 (iw_handler) NULL, /* SIOCSIWRANGE */
1578 (iw_handler) zd1201_get_range, /* SIOCGIWRANGE */
1579 (iw_handler) NULL, /* SIOCSIWPRIV */
1580 (iw_handler) NULL, /* SIOCGIWPRIV */
1581 (iw_handler) NULL, /* SIOCSIWSTATS */
1582 (iw_handler) NULL, /* SIOCGIWSTATS */
1583 (iw_handler) NULL, /* SIOCSIWSPY */
1584 (iw_handler) NULL, /* SIOCGIWSPY */
1585 (iw_handler) NULL, /* -- hole -- */
1586 (iw_handler) NULL, /* -- hole -- */
1587 (iw_handler) NULL/*zd1201_set_wap*/, /* SIOCSIWAP */
1588 (iw_handler) zd1201_get_wap, /* SIOCGIWAP */
1589 (iw_handler) NULL, /* -- hole -- */
1590 (iw_handler) NULL, /* SIOCGIWAPLIST */
1591 (iw_handler) zd1201_set_scan, /* SIOCSIWSCAN */
1592 (iw_handler) zd1201_get_scan, /* SIOCGIWSCAN */
1593 (iw_handler) zd1201_set_essid, /* SIOCSIWESSID */
1594 (iw_handler) zd1201_get_essid, /* SIOCGIWESSID */
1595 (iw_handler) NULL, /* SIOCSIWNICKN */
1596 (iw_handler) zd1201_get_nick, /* SIOCGIWNICKN */
1597 (iw_handler) NULL, /* -- hole -- */
1598 (iw_handler) NULL, /* -- hole -- */
1599 (iw_handler) zd1201_set_rate, /* SIOCSIWRATE */
1600 (iw_handler) zd1201_get_rate, /* SIOCGIWRATE */
1601 (iw_handler) zd1201_set_rts, /* SIOCSIWRTS */
1602 (iw_handler) zd1201_get_rts, /* SIOCGIWRTS */
1603 (iw_handler) zd1201_set_frag, /* SIOCSIWFRAG */
1604 (iw_handler) zd1201_get_frag, /* SIOCGIWFRAG */
1605 (iw_handler) NULL, /* SIOCSIWTXPOW */
1606 (iw_handler) NULL, /* SIOCGIWTXPOW */
1607 (iw_handler) zd1201_set_retry, /* SIOCSIWRETRY */
1608 (iw_handler) zd1201_get_retry, /* SIOCGIWRETRY */
1609 (iw_handler) zd1201_set_encode, /* SIOCSIWENCODE */
1610 (iw_handler) zd1201_get_encode, /* SIOCGIWENCODE */
1611 (iw_handler) zd1201_set_power, /* SIOCSIWPOWER */
1612 (iw_handler) zd1201_get_power, /* SIOCGIWPOWER */
1613 };
1614
1615 static int zd1201_set_hostauth(struct net_device *dev,
1616 struct iw_request_info *info, struct iw_param *rrq, char *extra)
1617 {
1618 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1619
1620 if (!zd->ap)
1621 return -EOPNOTSUPP;
1622
1623 return zd1201_setconfig16(zd, ZD1201_RID_CNFHOSTAUTH, rrq->value);
1624 }
1625
1626 static int zd1201_get_hostauth(struct net_device *dev,
1627 struct iw_request_info *info, struct iw_param *rrq, char *extra)
1628 {
1629 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1630 short hostauth;
1631 int err;
1632
1633 if (!zd->ap)
1634 return -EOPNOTSUPP;
1635
1636 err = zd1201_getconfig16(zd, ZD1201_RID_CNFHOSTAUTH, &hostauth);
1637 if (err)
1638 return err;
1639 rrq->value = hostauth;
1640 rrq->fixed = 1;
1641
1642 return 0;
1643 }
1644
1645 static int zd1201_auth_sta(struct net_device *dev,
1646 struct iw_request_info *info, struct sockaddr *sta, char *extra)
1647 {
1648 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1649 unsigned char buffer[10];
1650
1651 if (!zd->ap)
1652 return -EOPNOTSUPP;
1653
1654 memcpy(buffer, sta->sa_data, ETH_ALEN);
1655 *(short*)(buffer+6) = 0; /* 0==success, 1==failure */
1656 *(short*)(buffer+8) = 0;
1657
1658 return zd1201_setconfig(zd, ZD1201_RID_AUTHENTICATESTA, buffer, 10, 1);
1659 }
1660
1661 static int zd1201_set_maxassoc(struct net_device *dev,
1662 struct iw_request_info *info, struct iw_param *rrq, char *extra)
1663 {
1664 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1665 int err;
1666
1667 if (!zd->ap)
1668 return -EOPNOTSUPP;
1669
1670 err = zd1201_setconfig16(zd, ZD1201_RID_CNFMAXASSOCSTATIONS, rrq->value);
1671 if (err)
1672 return err;
1673 return 0;
1674 }
1675
1676 static int zd1201_get_maxassoc(struct net_device *dev,
1677 struct iw_request_info *info, struct iw_param *rrq, char *extra)
1678 {
1679 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1680 short maxassoc;
1681 int err;
1682
1683 if (!zd->ap)
1684 return -EOPNOTSUPP;
1685
1686 err = zd1201_getconfig16(zd, ZD1201_RID_CNFMAXASSOCSTATIONS, &maxassoc);
1687 if (err)
1688 return err;
1689 rrq->value = maxassoc;
1690 rrq->fixed = 1;
1691
1692 return 0;
1693 }
1694
1695 static const iw_handler zd1201_private_handler[] = {
1696 (iw_handler) zd1201_set_hostauth, /* ZD1201SIWHOSTAUTH */
1697 (iw_handler) zd1201_get_hostauth, /* ZD1201GIWHOSTAUTH */
1698 (iw_handler) zd1201_auth_sta, /* ZD1201SIWAUTHSTA */
1699 (iw_handler) NULL, /* nothing to get */
1700 (iw_handler) zd1201_set_maxassoc, /* ZD1201SIMAXASSOC */
1701 (iw_handler) zd1201_get_maxassoc, /* ZD1201GIMAXASSOC */
1702 };
1703
1704 static const struct iw_priv_args zd1201_private_args[] = {
1705 { ZD1201SIWHOSTAUTH, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
1706 IW_PRIV_TYPE_NONE, "sethostauth" },
1707 { ZD1201GIWHOSTAUTH, IW_PRIV_TYPE_NONE,
1708 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "gethostauth" },
1709 { ZD1201SIWAUTHSTA, IW_PRIV_TYPE_ADDR | IW_PRIV_SIZE_FIXED | 1,
1710 IW_PRIV_TYPE_NONE, "authstation" },
1711 { ZD1201SIWMAXASSOC, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
1712 IW_PRIV_TYPE_NONE, "setmaxassoc" },
1713 { ZD1201GIWMAXASSOC, IW_PRIV_TYPE_NONE,
1714 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getmaxassoc" },
1715 };
1716
1717 static const struct iw_handler_def zd1201_iw_handlers = {
1718 .num_standard = ARRAY_SIZE(zd1201_iw_handler),
1719 .num_private = ARRAY_SIZE(zd1201_private_handler),
1720 .num_private_args = ARRAY_SIZE(zd1201_private_args),
1721 .standard = (iw_handler *)zd1201_iw_handler,
1722 .private = (iw_handler *)zd1201_private_handler,
1723 .private_args = (struct iw_priv_args *) zd1201_private_args,
1724 .get_wireless_stats = zd1201_get_wireless_stats,
1725 };
1726
1727 static int zd1201_probe(struct usb_interface *interface,
1728 const struct usb_device_id *id)
1729 {
1730 struct zd1201 *zd;
1731 struct usb_device *usb;
1732 int err;
1733 short porttype;
1734 char buf[IW_ESSID_MAX_SIZE+2];
1735
1736 usb = interface_to_usbdev(interface);
1737
1738 zd = kzalloc(sizeof(struct zd1201), GFP_KERNEL);
1739 if (!zd)
1740 return -ENOMEM;
1741 zd->ap = ap;
1742 zd->usb = usb;
1743 zd->removed = 0;
1744 init_waitqueue_head(&zd->rxdataq);
1745 INIT_HLIST_HEAD(&zd->fraglist);
1746
1747 err = zd1201_fw_upload(usb, zd->ap);
1748 if (err) {
1749 dev_err(&usb->dev, "zd1201 firmware upload failed: %d\n", err);
1750 goto err_zd;
1751 }
1752
1753 zd->endp_in = 1;
1754 zd->endp_out = 1;
1755 zd->endp_out2 = 2;
1756 zd->rx_urb = usb_alloc_urb(0, GFP_KERNEL);
1757 zd->tx_urb = usb_alloc_urb(0, GFP_KERNEL);
1758 if (!zd->rx_urb || !zd->tx_urb)
1759 goto err_zd;
1760
1761 mdelay(100);
1762 err = zd1201_drvr_start(zd);
1763 if (err)
1764 goto err_zd;
1765
1766 err = zd1201_setconfig16(zd, ZD1201_RID_CNFMAXDATALEN, 2312);
1767 if (err)
1768 goto err_start;
1769
1770 err = zd1201_setconfig16(zd, ZD1201_RID_TXRATECNTL,
1771 ZD1201_RATEB1 | ZD1201_RATEB2 | ZD1201_RATEB5 | ZD1201_RATEB11);
1772 if (err)
1773 goto err_start;
1774
1775 zd->dev = alloc_etherdev(0);
1776 if (!zd->dev)
1777 goto err_start;
1778
1779 zd->dev->priv = zd;
1780 zd->dev->open = zd1201_net_open;
1781 zd->dev->stop = zd1201_net_stop;
1782 zd->dev->get_stats = zd1201_get_stats;
1783 zd->dev->wireless_handlers =
1784 (struct iw_handler_def *)&zd1201_iw_handlers;
1785 zd->dev->hard_start_xmit = zd1201_hard_start_xmit;
1786 zd->dev->watchdog_timeo = ZD1201_TX_TIMEOUT;
1787 zd->dev->tx_timeout = zd1201_tx_timeout;
1788 zd->dev->set_multicast_list = zd1201_set_multicast;
1789 zd->dev->set_mac_address = zd1201_set_mac_address;
1790 strcpy(zd->dev->name, "wlan%d");
1791
1792 err = zd1201_getconfig(zd, ZD1201_RID_CNFOWNMACADDR,
1793 zd->dev->dev_addr, zd->dev->addr_len);
1794 if (err)
1795 goto err_net;
1796
1797 /* Set wildcard essid to match zd->essid */
1798 *(__le16 *)buf = cpu_to_le16(0);
1799 err = zd1201_setconfig(zd, ZD1201_RID_CNFDESIREDSSID, buf,
1800 IW_ESSID_MAX_SIZE+2, 1);
1801 if (err)
1802 goto err_net;
1803
1804 if (zd->ap)
1805 porttype = ZD1201_PORTTYPE_AP;
1806 else
1807 porttype = ZD1201_PORTTYPE_BSS;
1808 err = zd1201_setconfig16(zd, ZD1201_RID_CNFPORTTYPE, porttype);
1809 if (err)
1810 goto err_net;
1811
1812 SET_NETDEV_DEV(zd->dev, &usb->dev);
1813
1814 err = register_netdev(zd->dev);
1815 if (err)
1816 goto err_net;
1817 dev_info(&usb->dev, "%s: ZD1201 USB Wireless interface\n",
1818 zd->dev->name);
1819
1820 usb_set_intfdata(interface, zd);
1821 zd1201_enable(zd); /* zd1201 likes to startup enabled, */
1822 zd1201_disable(zd); /* interfering with all the wifis in range */
1823 return 0;
1824
1825 err_net:
1826 free_netdev(zd->dev);
1827 err_start:
1828 /* Leave the device in reset state */
1829 zd1201_docmd(zd, ZD1201_CMDCODE_INIT, 0, 0, 0);
1830 err_zd:
1831 if (zd->tx_urb)
1832 usb_free_urb(zd->tx_urb);
1833 if (zd->rx_urb)
1834 usb_free_urb(zd->rx_urb);
1835 kfree(zd);
1836 return err;
1837 }
1838
1839 static void zd1201_disconnect(struct usb_interface *interface)
1840 {
1841 struct zd1201 *zd=(struct zd1201 *)usb_get_intfdata(interface);
1842 struct hlist_node *node, *node2;
1843 struct zd1201_frag *frag;
1844
1845 if (!zd)
1846 return;
1847 usb_set_intfdata(interface, NULL);
1848 if (zd->dev) {
1849 unregister_netdev(zd->dev);
1850 free_netdev(zd->dev);
1851 }
1852
1853 hlist_for_each_entry_safe(frag, node, node2, &zd->fraglist, fnode) {
1854 hlist_del_init(&frag->fnode);
1855 kfree_skb(frag->skb);
1856 kfree(frag);
1857 }
1858
1859 if (zd->tx_urb) {
1860 usb_kill_urb(zd->tx_urb);
1861 usb_free_urb(zd->tx_urb);
1862 }
1863 if (zd->rx_urb) {
1864 usb_kill_urb(zd->rx_urb);
1865 usb_free_urb(zd->rx_urb);
1866 }
1867 kfree(zd);
1868 }
1869
1870 #ifdef CONFIG_PM
1871
1872 static int zd1201_suspend(struct usb_interface *interface,
1873 pm_message_t message)
1874 {
1875 struct zd1201 *zd = usb_get_intfdata(interface);
1876
1877 netif_device_detach(zd->dev);
1878
1879 zd->was_enabled = zd->mac_enabled;
1880
1881 if (zd->was_enabled)
1882 return zd1201_disable(zd);
1883 else
1884 return 0;
1885 }
1886
1887 static int zd1201_resume(struct usb_interface *interface)
1888 {
1889 struct zd1201 *zd = usb_get_intfdata(interface);
1890
1891 if (!zd || !zd->dev)
1892 return -ENODEV;
1893
1894 netif_device_attach(zd->dev);
1895
1896 if (zd->was_enabled)
1897 return zd1201_enable(zd);
1898 else
1899 return 0;
1900 }
1901
1902 #else
1903
1904 #define zd1201_suspend NULL
1905 #define zd1201_resume NULL
1906
1907 #endif
1908
1909 static struct usb_driver zd1201_usb = {
1910 .name = "zd1201",
1911 .probe = zd1201_probe,
1912 .disconnect = zd1201_disconnect,
1913 .id_table = zd1201_table,
1914 .suspend = zd1201_suspend,
1915 .resume = zd1201_resume,
1916 };
1917
1918 static int __init zd1201_init(void)
1919 {
1920 return usb_register(&zd1201_usb);
1921 }
1922
1923 static void __exit zd1201_cleanup(void)
1924 {
1925 usb_deregister(&zd1201_usb);
1926 }
1927
1928 module_init(zd1201_init);
1929 module_exit(zd1201_cleanup);
Ubuntu Artful kernel mirror