tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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
27static 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
36static int ap = 0; /* Are we an AP or a normal station? */
37
38#define ZD1201_VERSION "0.15"
39
40MODULE_AUTHOR("Jeroen Vreeken <pe1rxq@amsat.org>");
41MODULE_DESCRIPTION("Driver for ZyDAS ZD1201 based USB Wireless adapters");
42MODULE_VERSION(ZD1201_VERSION);
43MODULE_LICENSE("GPL");
44module_param(ap, int, 0);
45MODULE_PARM_DESC(ap, "If non-zero Access Point firmware will be loaded");
46MODULE_DEVICE_TABLE(usb, zd1201_table);
47
48
49static 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;
109exit:
110 kfree(buf);
111 release_firmware(fw_entry);
112 return err;
113}
114
115static void zd1201_usbfree(struct urb *urb, struct pt_regs *regs)
116{
117 struct zd1201 *zd = urb->context;
118
119 switch(urb->status) {
120 case -EILSEQ:
121 case -ENODEV:
122 case -ETIMEDOUT:
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*/
146static 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 */
180static void zd1201_usbtx(struct urb *urb, struct pt_regs *regs)
181{
182 struct zd1201 *zd = urb->context;
183 netif_wake_queue(zd->dev);
184 return;
185}
186
187/* Incoming data */
188static void zd1201_usbrx(struct urb *urb, struct pt_regs *regs)
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 free = 1;
198 goto exit;
199 }
200
201 switch(urb->status) {
202 case -EILSEQ:
203 case -ENODEV:
204 case -ETIMEDOUT:
205 case -ENOENT:
206 case -EPIPE:
207 case -EOVERFLOW:
208 case -ESHUTDOWN:
209 dev_warn(&zd->usb->dev, "%s: rx urb failed: %d\n",
210 zd->dev->name, urb->status);
211 free = 1;
212 goto exit;
213 }
214
215 if (urb->status != 0 || urb->actual_length == 0)
216 goto resubmit;
217
218 type = data[0];
219 if (type == ZD1201_PACKET_EVENTSTAT || type == ZD1201_PACKET_RESOURCE) {
220 memcpy(zd->rxdata, data, urb->actual_length);
221 zd->rxlen = urb->actual_length;
222 zd->rxdatas = 1;
223 wake_up(&zd->rxdataq);
224 }
225 /* Info frame */
226 if (type == ZD1201_PACKET_INQUIRE) {
227 int i = 0;
228 unsigned short infotype, framelen, copylen;
229 framelen = le16_to_cpu(*(__le16*)&data[4]);
230 infotype = le16_to_cpu(*(__le16*)&data[6]);
231
232 if (infotype == ZD1201_INF_LINKSTATUS) {
233 short linkstatus;
234
235 linkstatus = le16_to_cpu(*(__le16*)&data[8]);
236 switch(linkstatus) {
237 case 1:
238 netif_carrier_on(zd->dev);
239 break;
240 case 2:
241 netif_carrier_off(zd->dev);
242 break;
243 case 3:
244 netif_carrier_off(zd->dev);
245 break;
246 case 4:
247 netif_carrier_on(zd->dev);
248 break;
249 default:
250 netif_carrier_off(zd->dev);
251 }
252 goto resubmit;
253 }
254 if (infotype == ZD1201_INF_ASSOCSTATUS) {
255 short status = le16_to_cpu(*(__le16*)(data+8));
256 int event;
257 union iwreq_data wrqu;
258
259 switch (status) {
260 case ZD1201_ASSOCSTATUS_STAASSOC:
261 case ZD1201_ASSOCSTATUS_REASSOC:
262 event = IWEVREGISTERED;
263 break;
264 case ZD1201_ASSOCSTATUS_DISASSOC:
265 case ZD1201_ASSOCSTATUS_ASSOCFAIL:
266 case ZD1201_ASSOCSTATUS_AUTHFAIL:
267 default:
268 event = IWEVEXPIRED;
269 }
270 memcpy(wrqu.addr.sa_data, data+10, ETH_ALEN);
271 wrqu.addr.sa_family = ARPHRD_ETHER;
272
273 /* Send event to user space */
274 wireless_send_event(zd->dev, event, &wrqu, NULL);
275
276 goto resubmit;
277 }
278 if (infotype == ZD1201_INF_AUTHREQ) {
279 union iwreq_data wrqu;
280
281 memcpy(wrqu.addr.sa_data, data+8, ETH_ALEN);
282 wrqu.addr.sa_family = ARPHRD_ETHER;
283 /* There isn't a event that trully fits this request.
284 We assume that userspace will be smart enough to
285 see a new station being expired and sends back a
286 authstation ioctl to authorize it. */
287 wireless_send_event(zd->dev, IWEVEXPIRED, &wrqu, NULL);
288 goto resubmit;
289 }
290 /* Other infotypes are handled outside this handler */
291 zd->rxlen = 0;
292 while (i < urb->actual_length) {
293 copylen = le16_to_cpu(*(__le16*)&data[i+2]);
294 /* Sanity check, sometimes we get junk */
295 if (copylen+zd->rxlen > sizeof(zd->rxdata))
296 break;
297 memcpy(zd->rxdata+zd->rxlen, data+i+4, copylen);
298 zd->rxlen += copylen;
299 i += 64;
300 }
301 if (i >= urb->actual_length) {
302 zd->rxdatas = 1;
303 wake_up(&zd->rxdataq);
304 }
305 goto resubmit;
306 }
307 /* Actual data */
308 if (data[urb->actual_length-1] == ZD1201_PACKET_RXDATA) {
309 int datalen = urb->actual_length-1;
310 unsigned short len, fc, seq;
311 struct hlist_node *node;
312
313 len = ntohs(*(__be16 *)&data[datalen-2]);
314 if (len>datalen)
315 len=datalen;
316 fc = le16_to_cpu(*(__le16 *)&data[datalen-16]);
317 seq = le16_to_cpu(*(__le16 *)&data[datalen-24]);
318
319 if(zd->monitor) {
320 if (datalen < 24)
321 goto resubmit;
322 if (!(skb = dev_alloc_skb(datalen+24)))
323 goto resubmit;
324
325 memcpy(skb_put(skb, 2), &data[datalen-16], 2);
326 memcpy(skb_put(skb, 2), &data[datalen-2], 2);
327 memcpy(skb_put(skb, 6), &data[datalen-14], 6);
328 memcpy(skb_put(skb, 6), &data[datalen-22], 6);
329 memcpy(skb_put(skb, 6), &data[datalen-8], 6);
330 memcpy(skb_put(skb, 2), &data[datalen-24], 2);
331 memcpy(skb_put(skb, len), data, len);
332 skb->dev = zd->dev;
333 skb->dev->last_rx = jiffies;
334 skb->protocol = eth_type_trans(skb, zd->dev);
335 zd->stats.rx_packets++;
336 zd->stats.rx_bytes += skb->len;
337 netif_rx(skb);
338 goto resubmit;
339 }
340
341 if ((seq & IEEE80211_SCTL_FRAG) ||
342 (fc & IEEE80211_FCTL_MOREFRAGS)) {
343 struct zd1201_frag *frag = NULL;
344 char *ptr;
345
346 if (datalen<14)
347 goto resubmit;
348 if ((seq & IEEE80211_SCTL_FRAG) == 0) {
349 frag = kmalloc(sizeof(*frag), GFP_ATOMIC);
350 if (!frag)
351 goto resubmit;
352 skb = dev_alloc_skb(IEEE80211_DATA_LEN +14+2);
353 if (!skb) {
354 kfree(frag);
355 goto resubmit;
356 }
357 frag->skb = skb;
358 frag->seq = seq & IEEE80211_SCTL_SEQ;
359 skb_reserve(skb, 2);
360 memcpy(skb_put(skb, 12), &data[datalen-14], 12);
361 memcpy(skb_put(skb, 2), &data[6], 2);
362 memcpy(skb_put(skb, len), data+8, len);
363 hlist_add_head(&frag->fnode, &zd->fraglist);
364 goto resubmit;
365 }
366 hlist_for_each_entry(frag, node, &zd->fraglist, fnode)
367 if(frag->seq == (seq&IEEE80211_SCTL_SEQ))
368 break;
369 if (!frag)
370 goto resubmit;
371 skb = frag->skb;
372 ptr = skb_put(skb, len);
373 if (ptr)
374 memcpy(ptr, data+8, len);
375 if (fc & IEEE80211_FCTL_MOREFRAGS)
376 goto resubmit;
377 hlist_del_init(&frag->fnode);
378 kfree(frag);
379 /* Fallthrough */
380 } else {
381 if (datalen<14)
382 goto resubmit;
383 skb = dev_alloc_skb(len + 14 + 2);
384 if (!skb)
385 goto resubmit;
386 skb_reserve(skb, 2);
387 memcpy(skb_put(skb, 12), &data[datalen-14], 12);
388 memcpy(skb_put(skb, 2), &data[6], 2);
389 memcpy(skb_put(skb, len), data+8, len);
390 }
391 skb->dev = zd->dev;
392 skb->dev->last_rx = jiffies;
393 skb->protocol = eth_type_trans(skb, zd->dev);
394 zd->stats.rx_packets++;
395 zd->stats.rx_bytes += skb->len;
396 netif_rx(skb);
397 }
398resubmit:
399 memset(data, 0, ZD1201_RXSIZE);
400
401 urb->status = 0;
402 urb->dev = zd->usb;
403 if(usb_submit_urb(urb, GFP_ATOMIC))
404 free = 1;
405
406exit:
407 if (free) {
408 zd->rxlen = 0;
409 zd->rxdatas = 1;
410 wake_up(&zd->rxdataq);
411 kfree(urb->transfer_buffer);
412 }
413 return;
414}
415
416static int zd1201_getconfig(struct zd1201 *zd, int rid, void *riddata,
417 unsigned int riddatalen)
418{
419 int err;
420 int i = 0;
421 int code;
422 int rid_fid;
423 int length;
424 unsigned char *pdata;
425
426 zd->rxdatas = 0;
427 err = zd1201_docmd(zd, ZD1201_CMDCODE_ACCESS, rid, 0, 0);
428 if (err)
429 return err;
430
431 wait_event_interruptible(zd->rxdataq, zd->rxdatas);
432 if (!zd->rxlen)
433 return -EIO;
434
435 code = le16_to_cpu(*(__le16*)(&zd->rxdata[4]));
436 rid_fid = le16_to_cpu(*(__le16*)(&zd->rxdata[6]));
437 length = le16_to_cpu(*(__le16*)(&zd->rxdata[8]));
438 if (length > zd->rxlen)
439 length = zd->rxlen-6;
440
441 /* If access bit is not on, then error */
442 if ((code & ZD1201_ACCESSBIT) != ZD1201_ACCESSBIT || rid_fid != rid )
443 return -EINVAL;
444
445 /* Not enough buffer for allocating data */
446 if (riddatalen != (length - 4)) {
447 dev_dbg(&zd->usb->dev, "riddatalen mismatches, expected=%u, (packet=%u) length=%u, rid=0x%04X, rid_fid=0x%04X\n",
448 riddatalen, zd->rxlen, length, rid, rid_fid);
449 return -ENODATA;
450 }
451
452 zd->rxdatas = 0;
453 /* Issue SetRxRid commnd */
454 err = zd1201_docmd(zd, ZD1201_CMDCODE_SETRXRID, rid, 0, length);
455 if (err)
456 return err;
457
458 /* Receive RID record from resource packets */
459 wait_event_interruptible(zd->rxdataq, zd->rxdatas);
460 if (!zd->rxlen)
461 return -EIO;
462
463 if (zd->rxdata[zd->rxlen - 1] != ZD1201_PACKET_RESOURCE) {
464 dev_dbg(&zd->usb->dev, "Packet type mismatch: 0x%x not 0x3\n",
465 zd->rxdata[zd->rxlen-1]);
466 return -EINVAL;
467 }
468
469 /* Set the data pointer and received data length */
470 pdata = zd->rxdata;
471 length = zd->rxlen;
472
473 do {
474 int actual_length;
475
476 actual_length = (length > 64) ? 64 : length;
477
478 if(pdata[0] != 0x3) {
479 dev_dbg(&zd->usb->dev, "Rx Resource packet type error: %02X\n",
480 pdata[0]);
481 return -EINVAL;
482 }
483
484 if (actual_length != 64) {
485 /* Trim the last packet type byte */
486 actual_length--;
487 }
488
489 /* Skip the 4 bytes header (RID length and RID) */
490 if(i == 0) {
491 pdata += 8;
492 actual_length -= 8;
493 }
494 else {
495 pdata += 4;
496 actual_length -= 4;
497 }
498
499 memcpy(riddata, pdata, actual_length);
500 riddata += actual_length;
501 pdata += actual_length;
502 length -= 64;
503 i++;
504 } while (length > 0);
505
506 return 0;
507}
508
509/*
510 * resreq:
511 * byte type
512 * byte sequence
513 * u16 reserved
514 * byte data[12]
515 * total: 16
516 */
517static int zd1201_setconfig(struct zd1201 *zd, int rid, void *buf, int len, int wait)
518{
519 int err;
520 unsigned char *request;
521 int reqlen;
522 char seq=0;
523 struct urb *urb;
524 unsigned int gfp_mask = wait ? GFP_NOIO : GFP_ATOMIC;
525
526 len += 4; /* first 4 are for header */
527
528 zd->rxdatas = 0;
529 zd->rxlen = 0;
530 for (seq=0; len > 0; seq++) {
531 request = kmalloc(16, gfp_mask);
532 if (!request)
533 return -ENOMEM;
534 urb = usb_alloc_urb(0, gfp_mask);
535 if (!urb) {
536 kfree(request);
537 return -ENOMEM;
538 }
539 memset(request, 0, 16);
540 reqlen = len>12 ? 12 : len;
541 request[0] = ZD1201_USB_RESREQ;
542 request[1] = seq;
543 request[2] = 0;
544 request[3] = 0;
545 if (request[1] == 0) {
546 /* add header */
547 *(__le16*)&request[4] = cpu_to_le16((len-2+1)/2);
548 *(__le16*)&request[6] = cpu_to_le16(rid);
549 memcpy(request+8, buf, reqlen-4);
550 buf += reqlen-4;
551 } else {
552 memcpy(request+4, buf, reqlen);
553 buf += reqlen;
554 }
555
556 len -= reqlen;
557
558 usb_fill_bulk_urb(urb, zd->usb, usb_sndbulkpipe(zd->usb,
559 zd->endp_out2), request, 16, zd1201_usbfree, zd);
560 err = usb_submit_urb(urb, gfp_mask);
561 if (err)
562 goto err;
563 }
564
565 request = kmalloc(16, gfp_mask);
566 if (!request)
567 return -ENOMEM;
568 urb = usb_alloc_urb(0, gfp_mask);
569 if (!urb) {
570 kfree(request);
571 return -ENOMEM;
572 }
573 *((__le32*)request) = cpu_to_le32(ZD1201_USB_CMDREQ);
574 *((__le16*)&request[4]) =
575 cpu_to_le16(ZD1201_CMDCODE_ACCESS|ZD1201_ACCESSBIT);
576 *((__le16*)&request[6]) = cpu_to_le16(rid);
577 *((__le16*)&request[8]) = cpu_to_le16(0);
578 *((__le16*)&request[10]) = cpu_to_le16(0);
579 usb_fill_bulk_urb(urb, zd->usb, usb_sndbulkpipe(zd->usb, zd->endp_out2),
580 request, 16, zd1201_usbfree, zd);
581 err = usb_submit_urb(urb, gfp_mask);
582 if (err)
583 goto err;
584
585 if (wait) {
586 wait_event_interruptible(zd->rxdataq, zd->rxdatas);
587 if (!zd->rxlen || le16_to_cpu(*(__le16*)&zd->rxdata[6]) != rid) {
588 dev_dbg(&zd->usb->dev, "wrong or no RID received\n");
589 }
590 }
591
592 return 0;
593err:
594 kfree(request);
595 usb_free_urb(urb);
596 return err;
597}
598
599static inline int zd1201_getconfig16(struct zd1201 *zd, int rid, short *val)
600{
601 int err;
602 __le16 zdval;
603
604 err = zd1201_getconfig(zd, rid, &zdval, sizeof(__le16));
605 if (err)
606 return err;
607 *val = le16_to_cpu(zdval);
608 return 0;
609}
610
611static inline int zd1201_setconfig16(struct zd1201 *zd, int rid, short val)
612{
613 __le16 zdval = cpu_to_le16(val);
614 return (zd1201_setconfig(zd, rid, &zdval, sizeof(__le16), 1));
615}
616
617static int zd1201_drvr_start(struct zd1201 *zd)
618{
619 int err, i;
620 short max;
621 __le16 zdmax;
622 unsigned char *buffer;
623
624 buffer = kmalloc(ZD1201_RXSIZE, GFP_KERNEL);
625 if (!buffer)
626 return -ENOMEM;
627 memset(buffer, 0, ZD1201_RXSIZE);
628
629 usb_fill_bulk_urb(zd->rx_urb, zd->usb,
630 usb_rcvbulkpipe(zd->usb, zd->endp_in), buffer, ZD1201_RXSIZE,
631 zd1201_usbrx, zd);
632
633 err = usb_submit_urb(zd->rx_urb, GFP_KERNEL);
634 if (err)
635 goto err_buffer;
636
637 err = zd1201_docmd(zd, ZD1201_CMDCODE_INIT, 0, 0, 0);
638 if (err)
639 goto err_urb;
640
641 err = zd1201_getconfig(zd, ZD1201_RID_CNFMAXTXBUFFERNUMBER, &zdmax,
642 sizeof(__le16));
643 if (err)
644 goto err_urb;
645
646 max = le16_to_cpu(zdmax);
647 for (i=0; i<max; i++) {
648 err = zd1201_docmd(zd, ZD1201_CMDCODE_ALLOC, 1514, 0, 0);
649 if (err)
650 goto err_urb;
651 }
652
653 return 0;
654
655err_urb:
656 usb_kill_urb(zd->rx_urb);
657 return err;
658err_buffer:
659 kfree(buffer);
660 return err;
661}
662
663/* Magic alert: The firmware doesn't seem to like the MAC state being
664 * toggled in promisc (aka monitor) mode.
665 * (It works a number of times, but will halt eventually)
666 * So we turn it of before disabling and on after enabling if needed.
667 */
668static int zd1201_enable(struct zd1201 *zd)
669{
670 int err;
671
672 if (zd->mac_enabled)
673 return 0;
674
675 err = zd1201_docmd(zd, ZD1201_CMDCODE_ENABLE, 0, 0, 0);
676 if (!err)
677 zd->mac_enabled = 1;
678
679 if (zd->monitor)
680 err = zd1201_setconfig16(zd, ZD1201_RID_PROMISCUOUSMODE, 1);
681
682 return err;
683}
684
685static int zd1201_disable(struct zd1201 *zd)
686{
687 int err;
688
689 if (!zd->mac_enabled)
690 return 0;
691 if (zd->monitor) {
692 err = zd1201_setconfig16(zd, ZD1201_RID_PROMISCUOUSMODE, 0);
693 if (err)
694 return err;
695 }
696
697 err = zd1201_docmd(zd, ZD1201_CMDCODE_DISABLE, 0, 0, 0);
698 if (!err)
699 zd->mac_enabled = 0;
700 return err;
701}
702
703static int zd1201_mac_reset(struct zd1201 *zd)
704{
705 if (!zd->mac_enabled)
706 return 0;
707 zd1201_disable(zd);
708 return zd1201_enable(zd);
709}
710
711static int zd1201_join(struct zd1201 *zd, char *essid, int essidlen)
712{
713 int err, val;
714 char buf[IW_ESSID_MAX_SIZE+2];
715
716 err = zd1201_disable(zd);
717 if (err)
718 return err;
719
720 val = ZD1201_CNFAUTHENTICATION_OPENSYSTEM;
721 val |= ZD1201_CNFAUTHENTICATION_SHAREDKEY;
722 err = zd1201_setconfig16(zd, ZD1201_RID_CNFAUTHENTICATION, val);
723 if (err)
724 return err;
725
726 *(__le16 *)buf = cpu_to_le16(essidlen);
727 memcpy(buf+2, essid, essidlen);
728 if (!zd->ap) { /* Normal station */
729 err = zd1201_setconfig(zd, ZD1201_RID_CNFDESIREDSSID, buf,
730 IW_ESSID_MAX_SIZE+2, 1);
731 if (err)
732 return err;
733 } else { /* AP */
734 err = zd1201_setconfig(zd, ZD1201_RID_CNFOWNSSID, buf,
735 IW_ESSID_MAX_SIZE+2, 1);
736 if (err)
737 return err;
738 }
739
740 err = zd1201_setconfig(zd, ZD1201_RID_CNFOWNMACADDR,
741 zd->dev->dev_addr, zd->dev->addr_len, 1);
742 if (err)
743 return err;
744
745 err = zd1201_enable(zd);
746 if (err)
747 return err;
748
749 msleep(100);
750 return 0;
751}
752
753static int zd1201_net_open(struct net_device *dev)
754{
755 struct zd1201 *zd = (struct zd1201 *)dev->priv;
756
757 /* Start MAC with wildcard if no essid set */
758 if (!zd->mac_enabled)
759 zd1201_join(zd, zd->essid, zd->essidlen);
760 netif_start_queue(dev);
761
762 return 0;
763}
764
765static int zd1201_net_stop(struct net_device *dev)
766{
767 netif_stop_queue(dev);
768
769 return 0;
770}
771
772/*
773 RFC 1042 encapsulates Ethernet frames in 802.11 frames
774 by prefixing them with 0xaa, 0xaa, 0x03) followed by a SNAP OID of 0
775 (0x00, 0x00, 0x00). Zd requires an additional padding, copy
776 of ethernet addresses, length of the standard RFC 1042 packet
777 and a command byte (which is nul for tx).
778
779 tx frame (from Wlan NG):
780 RFC 1042:
781 llc 0xAA 0xAA 0x03 (802.2 LLC)
782 snap 0x00 0x00 0x00 (Ethernet encapsulated)
783 type 2 bytes, Ethernet type field
784 payload (minus eth header)
785 Zydas specific:
786 padding 1B if (skb->len+8+1)%64==0
787 Eth MAC addr 12 bytes, Ethernet MAC addresses
788 length 2 bytes, RFC 1042 packet length
789 (llc+snap+type+payload)
790 zd 1 null byte, zd1201 packet type
791 */
792static int zd1201_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
793{
794 struct zd1201 *zd = (struct zd1201 *)dev->priv;
795 unsigned char *txbuf = zd->txdata;
796 int txbuflen, pad = 0, err;
797 struct urb *urb = zd->tx_urb;
798
799 if (!zd->mac_enabled || zd->monitor) {
800 zd->stats.tx_dropped++;
801 kfree_skb(skb);
802 return 0;
803 }
804 netif_stop_queue(dev);
805
806 txbuflen = skb->len + 8 + 1;
807 if (txbuflen%64 == 0) {
808 pad = 1;
809 txbuflen++;
810 }
811 txbuf[0] = 0xAA;
812 txbuf[1] = 0xAA;
813 txbuf[2] = 0x03;
814 txbuf[3] = 0x00; /* rfc1042 */
815 txbuf[4] = 0x00;
816 txbuf[5] = 0x00;
817
818 memcpy(txbuf+6, skb->data+12, skb->len-12);
819 if (pad)
820 txbuf[skb->len-12+6]=0;
821 memcpy(txbuf+skb->len-12+6+pad, skb->data, 12);
822 *(__be16*)&txbuf[skb->len+6+pad] = htons(skb->len-12+6);
823 txbuf[txbuflen-1] = 0;
824
825 usb_fill_bulk_urb(urb, zd->usb, usb_sndbulkpipe(zd->usb, zd->endp_out),
826 txbuf, txbuflen, zd1201_usbtx, zd);
827
828 err = usb_submit_urb(zd->tx_urb, GFP_ATOMIC);
829 if (err) {
830 zd->stats.tx_errors++;
831 netif_start_queue(dev);
832 return err;
833 }
834 zd->stats.tx_packets++;
835 zd->stats.tx_bytes += skb->len;
836 dev->trans_start = jiffies;
837 kfree_skb(skb);
838
839 return 0;
840}
841
842static void zd1201_tx_timeout(struct net_device *dev)
843{
844 struct zd1201 *zd = (struct zd1201 *)dev->priv;
845
846 if (!zd)
847 return;
848 dev_warn(&zd->usb->dev, "%s: TX timeout, shooting down urb\n",
849 dev->name);
850 usb_unlink_urb(zd->tx_urb);
851 zd->stats.tx_errors++;
852 /* Restart the timeout to quiet the watchdog: */
853 dev->trans_start = jiffies;
854}
855
856static int zd1201_set_mac_address(struct net_device *dev, void *p)
857{
858 struct sockaddr *addr = p;
859 struct zd1201 *zd = (struct zd1201 *)dev->priv;
860 int err;
861
862 if (!zd)
863 return -ENODEV;
864
865 err = zd1201_setconfig(zd, ZD1201_RID_CNFOWNMACADDR,
866 addr->sa_data, dev->addr_len, 1);
867 if (err)
868 return err;
869 memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
870
871 return zd1201_mac_reset(zd);
872}
873
874static struct net_device_stats *zd1201_get_stats(struct net_device *dev)
875{
876 struct zd1201 *zd = (struct zd1201 *)dev->priv;
877
878 return &zd->stats;
879}
880
881static struct iw_statistics *zd1201_get_wireless_stats(struct net_device *dev)
882{
883 struct zd1201 *zd = (struct zd1201 *)dev->priv;
884
885 return &zd->iwstats;
886}
887
888static void zd1201_set_multicast(struct net_device *dev)
889{
890 struct zd1201 *zd = (struct zd1201 *)dev->priv;
891 struct dev_mc_list *mc = dev->mc_list;
892 unsigned char reqbuf[ETH_ALEN*ZD1201_MAXMULTI];
893 int i;
894
895 if (dev->mc_count > ZD1201_MAXMULTI)
896 return;
897
898 for (i=0; i<dev->mc_count; i++) {
899 memcpy(reqbuf+i*ETH_ALEN, mc->dmi_addr, ETH_ALEN);
900 mc = mc->next;
901 }
902 zd1201_setconfig(zd, ZD1201_RID_CNFGROUPADDRESS, reqbuf,
903 dev->mc_count*ETH_ALEN, 0);
904
905}
906
907static int zd1201_config_commit(struct net_device *dev,
908 struct iw_request_info *info, struct iw_point *data, char *essid)
909{
910 struct zd1201 *zd = (struct zd1201 *)dev->priv;
911
912 return zd1201_mac_reset(zd);
913}
914
915static int zd1201_get_name(struct net_device *dev,
916 struct iw_request_info *info, char *name, char *extra)
917{
918 strcpy(name, "IEEE 802.11b");
919
920 return 0;
921}
922
923static int zd1201_set_freq(struct net_device *dev,
924 struct iw_request_info *info, struct iw_freq *freq, char *extra)
925{
926 struct zd1201 *zd = (struct zd1201 *)dev->priv;
927 short channel = 0;
928 int err;
929
930 if (freq->e == 0)
931 channel = freq->m;
932 else {
933 if (freq->m >= 2482)
934 channel = 14;
935 if (freq->m >= 2407)
936 channel = (freq->m-2407)/5;
937 }
938
939 err = zd1201_setconfig16(zd, ZD1201_RID_CNFOWNCHANNEL, channel);
940 if (err)
941 return err;
942
943 zd1201_mac_reset(zd);
944
945 return 0;
946}
947
948static int zd1201_get_freq(struct net_device *dev,
949 struct iw_request_info *info, struct iw_freq *freq, char *extra)
950{
951 struct zd1201 *zd = (struct zd1201 *)dev->priv;
952 short channel;
953 int err;
954
955 err = zd1201_getconfig16(zd, ZD1201_RID_CNFOWNCHANNEL, &channel);
956 if (err)
957 return err;
958 freq->e = 0;
959 freq->m = channel;
960
961 return 0;
962}
963
964static int zd1201_set_mode(struct net_device *dev,
965 struct iw_request_info *info, __u32 *mode, char *extra)
966{
967 struct zd1201 *zd = (struct zd1201 *)dev->priv;
968 short porttype, monitor = 0;
969 unsigned char buffer[IW_ESSID_MAX_SIZE+2];
970 int err;
971
972 if (zd->ap) {
973 if (*mode != IW_MODE_MASTER)
974 return -EINVAL;
975 return 0;
976 }
977
978 err = zd1201_setconfig16(zd, ZD1201_RID_PROMISCUOUSMODE, 0);
979 if (err)
980 return err;
981 zd->dev->type = ARPHRD_ETHER;
982 switch(*mode) {
983 case IW_MODE_MONITOR:
984 monitor = 1;
985 zd->dev->type = ARPHRD_IEEE80211;
986 /* Make sure we are no longer associated with by
987 setting an 'impossible' essid.
988 (otherwise we mess up firmware)
989 */
990 zd1201_join(zd, "\0-*#\0", 5);
991 /* Put port in pIBSS */
992 case 8: /* No pseudo-IBSS in wireless extensions (yet) */
993 porttype = ZD1201_PORTTYPE_PSEUDOIBSS;
994 break;
995 case IW_MODE_ADHOC:
996 porttype = ZD1201_PORTTYPE_IBSS;
997 break;
998 case IW_MODE_INFRA:
999 porttype = ZD1201_PORTTYPE_BSS;
1000 break;
1001 default:
1002 return -EINVAL;
1003 }
1004
1005 err = zd1201_setconfig16(zd, ZD1201_RID_CNFPORTTYPE, porttype);
1006 if (err)
1007 return err;
1008 if (zd->monitor && !monitor) {
1009 zd1201_disable(zd);
1010 *(__le16 *)buffer = cpu_to_le16(zd->essidlen);
1011 memcpy(buffer+2, zd->essid, zd->essidlen);
1012 err = zd1201_setconfig(zd, ZD1201_RID_CNFDESIREDSSID,
1013 buffer, IW_ESSID_MAX_SIZE+2, 1);
1014 if (err)
1015 return err;
1016 }
1017 zd->monitor=monitor;
1018 /* If monitor mode is set we don't actually turn it on here since it
1019 * is done during mac reset anyway (see zd1201_mac_enable).
1020 */
1021
1022 zd1201_mac_reset(zd);
1023
1024 return 0;
1025}
1026
1027static int zd1201_get_mode(struct net_device *dev,
1028 struct iw_request_info *info, __u32 *mode, char *extra)
1029{
1030 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1031 short porttype;
1032 int err;
1033
1034 err = zd1201_getconfig16(zd, ZD1201_RID_CNFPORTTYPE, &porttype);
1035 if (err)
1036 return err;
1037 switch(porttype) {
1038 case ZD1201_PORTTYPE_IBSS:
1039 *mode = IW_MODE_ADHOC;
1040 break;
1041 case ZD1201_PORTTYPE_BSS:
1042 *mode = IW_MODE_INFRA;
1043 break;
1044 case ZD1201_PORTTYPE_WDS:
1045 *mode = IW_MODE_REPEAT;
1046 break;
1047 case ZD1201_PORTTYPE_PSEUDOIBSS:
1048 *mode = 8;/* No Pseudo-IBSS... */
1049 break;
1050 case ZD1201_PORTTYPE_AP:
1051 *mode = IW_MODE_MASTER;
1052 break;
1053 default:
1054 dev_dbg(&zd->usb->dev, "Unknown porttype: %d\n",
1055 porttype);
1056 *mode = IW_MODE_AUTO;
1057 }
1058 if (zd->monitor)
1059 *mode = IW_MODE_MONITOR;
1060
1061 return 0;
1062}
1063
1064static int zd1201_get_range(struct net_device *dev,
1065 struct iw_request_info *info, struct iw_point *wrq, char *extra)
1066{
1067 struct iw_range *range = (struct iw_range *)extra;
1068
1069 wrq->length = sizeof(struct iw_range);
1070 memset(range, 0, sizeof(struct iw_range));
1071 range->we_version_compiled = WIRELESS_EXT;
1072 range->we_version_source = WIRELESS_EXT;
1073
1074 range->max_qual.qual = 128;
1075 range->max_qual.level = 128;
1076 range->max_qual.noise = 128;
1077 range->max_qual.updated = 7;
1078
1079 range->encoding_size[0] = 5;
1080 range->encoding_size[1] = 13;
1081 range->num_encoding_sizes = 2;
1082 range->max_encoding_tokens = ZD1201_NUMKEYS;
1083
1084 range->num_bitrates = 4;
1085 range->bitrate[0] = 1000000;
1086 range->bitrate[1] = 2000000;
1087 range->bitrate[2] = 5500000;
1088 range->bitrate[3] = 11000000;
1089
1090 range->min_rts = 0;
1091 range->min_frag = ZD1201_FRAGMIN;
1092 range->max_rts = ZD1201_RTSMAX;
1093 range->min_frag = ZD1201_FRAGMAX;
1094
1095 return 0;
1096}
1097
1098/* Little bit of magic here: we only get the quality if we poll
1099 * for it, and we never get an actual request to trigger such
1100 * a poll. Therefore we 'assume' that the user will soon ask for
1101 * the stats after asking the bssid.
1102 */
1103static int zd1201_get_wap(struct net_device *dev,
1104 struct iw_request_info *info, struct sockaddr *ap_addr, char *extra)
1105{
1106 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1107 unsigned char buffer[6];
1108
1109 if (!zd1201_getconfig(zd, ZD1201_RID_COMMSQUALITY, buffer, 6)) {
1110 /* Unfortunately the quality and noise reported is useless.
1111 they seem to be accumulators that increase until you
1112 read them, unless we poll on a fixed interval we can't
1113 use them
1114 */
1115 /*zd->iwstats.qual.qual = le16_to_cpu(((__le16 *)buffer)[0]);*/
1116 zd->iwstats.qual.level = le16_to_cpu(((__le16 *)buffer)[1]);
1117 /*zd->iwstats.qual.noise = le16_to_cpu(((__le16 *)buffer)[2]);*/
1118 zd->iwstats.qual.updated = 2;
1119 }
1120
1121 return zd1201_getconfig(zd,ZD1201_RID_CURRENTBSSID,ap_addr->sa_data,6);
1122}
1123
1124static int zd1201_set_scan(struct net_device *dev,
1125 struct iw_request_info *info, struct iw_point *srq, char *extra)
1126{
1127 /* We do everything in get_scan */
1128 return 0;
1129}
1130
1131static int zd1201_get_scan(struct net_device *dev,
1132 struct iw_request_info *info, struct iw_point *srq, char *extra)
1133{
1134 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1135 int err, i, j, enabled_save;
1136 struct iw_event iwe;
1137 char *cev = extra;
1138 char *end_buf = extra + IW_SCAN_MAX_DATA;
1139
1140 /* No scanning in AP mode */
1141 if (zd->ap)
1142 return -EOPNOTSUPP;
1143
1144 /* Scan doesn't seem to work if disabled */
1145 enabled_save = zd->mac_enabled;
1146 zd1201_enable(zd);
1147
1148 zd->rxdatas = 0;
1149 err = zd1201_docmd(zd, ZD1201_CMDCODE_INQUIRE,
1150 ZD1201_INQ_SCANRESULTS, 0, 0);
1151 if (err)
1152 return err;
1153
1154 wait_event_interruptible(zd->rxdataq, zd->rxdatas);
1155 if (!zd->rxlen)
1156 return -EIO;
1157
1158 if (le16_to_cpu(*(__le16*)&zd->rxdata[2]) != ZD1201_INQ_SCANRESULTS)
1159 return -EIO;
1160
1161 for(i=8; i<zd->rxlen; i+=62) {
1162 iwe.cmd = SIOCGIWAP;
1163 iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
1164 memcpy(iwe.u.ap_addr.sa_data, zd->rxdata+i+6, 6);
1165 cev = iwe_stream_add_event(cev, end_buf, &iwe, IW_EV_ADDR_LEN);
1166
1167 iwe.cmd = SIOCGIWESSID;
1168 iwe.u.data.length = zd->rxdata[i+16];
1169 iwe.u.data.flags = 1;
1170 cev = iwe_stream_add_point(cev, end_buf, &iwe, zd->rxdata+i+18);
1171
1172 iwe.cmd = SIOCGIWMODE;
1173 if (zd->rxdata[i+14]&0x01)
1174 iwe.u.mode = IW_MODE_MASTER;
1175 else
1176 iwe.u.mode = IW_MODE_ADHOC;
1177 cev = iwe_stream_add_event(cev, end_buf, &iwe, IW_EV_UINT_LEN);
1178
1179 iwe.cmd = SIOCGIWFREQ;
1180 iwe.u.freq.m = zd->rxdata[i+0];
1181 iwe.u.freq.e = 0;
1182 cev = iwe_stream_add_event(cev, end_buf, &iwe, IW_EV_FREQ_LEN);
1183
1184 iwe.cmd = SIOCGIWRATE;
1185 iwe.u.bitrate.fixed = 0;
1186 iwe.u.bitrate.disabled = 0;
1187 for (j=0; j<10; j++) if (zd->rxdata[i+50+j]) {
1188 iwe.u.bitrate.value = (zd->rxdata[i+50+j]&0x7f)*500000;
1189 cev=iwe_stream_add_event(cev, end_buf, &iwe,
1190 IW_EV_PARAM_LEN);
1191 }
1192
1193 iwe.cmd = SIOCGIWENCODE;
1194 iwe.u.data.length = 0;
1195 if (zd->rxdata[i+14]&0x10)
1196 iwe.u.data.flags = IW_ENCODE_ENABLED;
1197 else
1198 iwe.u.data.flags = IW_ENCODE_DISABLED;
1199 cev = iwe_stream_add_point(cev, end_buf, &iwe, NULL);
1200
1201 iwe.cmd = IWEVQUAL;
1202 iwe.u.qual.qual = zd->rxdata[i+4];
1203 iwe.u.qual.noise= zd->rxdata[i+2]/10-100;
1204 iwe.u.qual.level = (256+zd->rxdata[i+4]*100)/255-100;
1205 iwe.u.qual.updated = 7;
1206 cev = iwe_stream_add_event(cev, end_buf, &iwe, IW_EV_QUAL_LEN);
1207 }
1208
1209 if (!enabled_save)
1210 zd1201_disable(zd);
1211
1212 srq->length = cev - extra;
1213 srq->flags = 0;
1214
1215 return 0;
1216}
1217
1218static int zd1201_set_essid(struct net_device *dev,
1219 struct iw_request_info *info, struct iw_point *data, char *essid)
1220{
1221 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1222
1223 if (data->length > IW_ESSID_MAX_SIZE)
1224 return -EINVAL;
1225 if (data->length < 1)
1226 data->length = 1;
1227 zd->essidlen = data->length-1;
1228 memset(zd->essid, 0, IW_ESSID_MAX_SIZE+1);
1229 memcpy(zd->essid, essid, data->length);
1230 return zd1201_join(zd, zd->essid, zd->essidlen);
1231}
1232
1233static int zd1201_get_essid(struct net_device *dev,
1234 struct iw_request_info *info, struct iw_point *data, char *essid)
1235{
1236 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1237
1238 memcpy(essid, zd->essid, zd->essidlen);
1239 data->flags = 1;
1240 data->length = zd->essidlen;
1241
1242 return 0;
1243}
1244
1245static int zd1201_get_nick(struct net_device *dev, struct iw_request_info *info,
1246 struct iw_point *data, char *nick)
1247{
1248 strcpy(nick, "zd1201");
1249 data->flags = 1;
1250 data->length = strlen(nick);
1251 return 0;
1252}
1253
1254static int zd1201_set_rate(struct net_device *dev,
1255 struct iw_request_info *info, struct iw_param *rrq, char *extra)
1256{
1257 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1258 short rate;
1259 int err;
1260
1261 switch (rrq->value) {
1262 case 1000000:
1263 rate = ZD1201_RATEB1;
1264 break;
1265 case 2000000:
1266 rate = ZD1201_RATEB2;
1267 break;
1268 case 5500000:
1269 rate = ZD1201_RATEB5;
1270 break;
1271 case 11000000:
1272 default:
1273 rate = ZD1201_RATEB11;
1274 break;
1275 }
1276 if (!rrq->fixed) { /* Also enable all lower bitrates */
1277 rate |= rate-1;
1278 }
1279
1280 err = zd1201_setconfig16(zd, ZD1201_RID_TXRATECNTL, rate);
1281 if (err)
1282 return err;
1283
1284 return zd1201_mac_reset(zd);
1285}
1286
1287static int zd1201_get_rate(struct net_device *dev,
1288 struct iw_request_info *info, struct iw_param *rrq, char *extra)
1289{
1290 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1291 short rate;
1292 int err;
1293
1294 err = zd1201_getconfig16(zd, ZD1201_RID_CURRENTTXRATE, &rate);
1295 if (err)
1296 return err;
1297
1298 switch(rate) {
1299 case 1:
1300 rrq->value = 1000000;
1301 break;
1302 case 2:
1303 rrq->value = 2000000;
1304 break;
1305 case 5:
1306 rrq->value = 5500000;
1307 break;
1308 case 11:
1309 rrq->value = 11000000;
1310 break;
1311 default:
1312 rrq->value = 0;
1313 }
1314 rrq->fixed = 0;
1315 rrq->disabled = 0;
1316
1317 return 0;
1318}
1319
1320static int zd1201_set_rts(struct net_device *dev, struct iw_request_info *info,
1321 struct iw_param *rts, char *extra)
1322{
1323 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1324 int err;
1325 short val = rts->value;
1326
1327 if (rts->disabled || !rts->fixed)
1328 val = ZD1201_RTSMAX;
1329 if (val > ZD1201_RTSMAX)
1330 return -EINVAL;
1331 if (val < 0)
1332 return -EINVAL;
1333
1334 err = zd1201_setconfig16(zd, ZD1201_RID_CNFRTSTHRESHOLD, val);
1335 if (err)
1336 return err;
1337 return zd1201_mac_reset(zd);
1338}
1339
1340static int zd1201_get_rts(struct net_device *dev, struct iw_request_info *info,
1341 struct iw_param *rts, char *extra)
1342{
1343 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1344 short rtst;
1345 int err;
1346
1347 err = zd1201_getconfig16(zd, ZD1201_RID_CNFRTSTHRESHOLD, &rtst);
1348 if (err)
1349 return err;
1350 rts->value = rtst;
1351 rts->disabled = (rts->value == ZD1201_RTSMAX);
1352 rts->fixed = 1;
1353
1354 return 0;
1355}
1356
1357static int zd1201_set_frag(struct net_device *dev, struct iw_request_info *info,
1358 struct iw_param *frag, char *extra)
1359{
1360 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1361 int err;
1362 short val = frag->value;
1363
1364 if (frag->disabled || !frag->fixed)
1365 val = ZD1201_FRAGMAX;
1366 if (val > ZD1201_FRAGMAX)
1367 return -EINVAL;
1368 if (val < ZD1201_FRAGMIN)
1369 return -EINVAL;
1370 if (val & 1)
1371 return -EINVAL;
1372 err = zd1201_setconfig16(zd, ZD1201_RID_CNFFRAGTHRESHOLD, val);
1373 if (err)
1374 return err;
1375 return zd1201_mac_reset(zd);
1376}
1377
1378static int zd1201_get_frag(struct net_device *dev, struct iw_request_info *info,
1379 struct iw_param *frag, char *extra)
1380{
1381 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1382 short fragt;
1383 int err;
1384
1385 err = zd1201_getconfig16(zd, ZD1201_RID_CNFFRAGTHRESHOLD, &fragt);
1386 if (err)
1387 return err;
1388 frag->value = fragt;
1389 frag->disabled = (frag->value == ZD1201_FRAGMAX);
1390 frag->fixed = 1;
1391
1392 return 0;
1393}
1394
1395static int zd1201_set_retry(struct net_device *dev,
1396 struct iw_request_info *info, struct iw_param *rrq, char *extra)
1397{
1398 return 0;
1399}
1400
1401static int zd1201_get_retry(struct net_device *dev,
1402 struct iw_request_info *info, struct iw_param *rrq, char *extra)
1403{
1404 return 0;
1405}
1406
1407static int zd1201_set_encode(struct net_device *dev,
1408 struct iw_request_info *info, struct iw_point *erq, char *key)
1409{
1410 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1411 short i;
1412 int err, rid;
1413
1414 if (erq->length > ZD1201_MAXKEYLEN)
1415 return -EINVAL;
1416
1417 i = (erq->flags & IW_ENCODE_INDEX)-1;
1418 if (i == -1) {
1419 err = zd1201_getconfig16(zd,ZD1201_RID_CNFDEFAULTKEYID,&i);
1420 if (err)
1421 return err;
1422 } else {
1423 err = zd1201_setconfig16(zd, ZD1201_RID_CNFDEFAULTKEYID, i);
1424 if (err)
1425 return err;
1426 }
1427
1428 if (i < 0 || i >= ZD1201_NUMKEYS)
1429 return -EINVAL;
1430
1431 rid = ZD1201_RID_CNFDEFAULTKEY0 + i;
1432 err = zd1201_setconfig(zd, rid, key, erq->length, 1);
1433 if (err)
1434 return err;
1435 zd->encode_keylen[i] = erq->length;
1436 memcpy(zd->encode_keys[i], key, erq->length);
1437
1438 i=0;
1439 if (!(erq->flags & IW_ENCODE_DISABLED & IW_ENCODE_MODE)) {
1440 i |= 0x01;
1441 zd->encode_enabled = 1;
1442 } else
1443 zd->encode_enabled = 0;
1444 if (erq->flags & IW_ENCODE_RESTRICTED & IW_ENCODE_MODE) {
1445 i |= 0x02;
1446 zd->encode_restricted = 1;
1447 } else
1448 zd->encode_restricted = 0;
1449 err = zd1201_setconfig16(zd, ZD1201_RID_CNFWEBFLAGS, i);
1450 if (err)
1451 return err;
1452
1453 if (zd->encode_enabled)
1454 i = ZD1201_CNFAUTHENTICATION_SHAREDKEY;
1455 else
1456 i = ZD1201_CNFAUTHENTICATION_OPENSYSTEM;
1457 err = zd1201_setconfig16(zd, ZD1201_RID_CNFAUTHENTICATION, i);
1458 if (err)
1459 return err;
1460
1461 return zd1201_mac_reset(zd);
1462}
1463
1464static int zd1201_get_encode(struct net_device *dev,
1465 struct iw_request_info *info, struct iw_point *erq, char *key)
1466{
1467 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1468 short i;
1469 int err;
1470
1471 if (zd->encode_enabled)
1472 erq->flags = IW_ENCODE_ENABLED;
1473 else
1474 erq->flags = IW_ENCODE_DISABLED;
1475 if (zd->encode_restricted)
1476 erq->flags |= IW_ENCODE_RESTRICTED;
1477 else
1478 erq->flags |= IW_ENCODE_OPEN;
1479
1480 i = (erq->flags & IW_ENCODE_INDEX) -1;
1481 if (i == -1) {
1482 err = zd1201_getconfig16(zd, ZD1201_RID_CNFDEFAULTKEYID, &i);
1483 if (err)
1484 return err;
1485 }
1486 if (i<0 || i>= ZD1201_NUMKEYS)
1487 return -EINVAL;
1488
1489 erq->flags |= i+1;
1490
1491 erq->length = zd->encode_keylen[i];
1492 memcpy(key, zd->encode_keys[i], erq->length);
1493
1494 return 0;
1495}
1496
1497static int zd1201_set_power(struct net_device *dev,
1498 struct iw_request_info *info, struct iw_param *vwrq, char *extra)
1499{
1500 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1501 short enabled, duration, level;
1502 int err;
1503
1504 enabled = vwrq->disabled ? 0 : 1;
1505 if (enabled) {
1506 if (vwrq->flags & IW_POWER_PERIOD) {
1507 duration = vwrq->value;
1508 err = zd1201_setconfig16(zd,
1509 ZD1201_RID_CNFMAXSLEEPDURATION, duration);
1510 if (err)
1511 return err;
1512 goto out;
1513 }
1514 if (vwrq->flags & IW_POWER_TIMEOUT) {
1515 err = zd1201_getconfig16(zd,
1516 ZD1201_RID_CNFMAXSLEEPDURATION, &duration);
1517 if (err)
1518 return err;
1519 level = vwrq->value * 4 / duration;
1520 if (level > 4)
1521 level = 4;
1522 if (level < 0)
1523 level = 0;
1524 err = zd1201_setconfig16(zd, ZD1201_RID_CNFPMEPS,
1525 level);
1526 if (err)
1527 return err;
1528 goto out;
1529 }
1530 return -EINVAL;
1531 }
1532out:
1533 err = zd1201_setconfig16(zd, ZD1201_RID_CNFPMENABLED, enabled);
1534 if (err)
1535 return err;
1536
1537 return 0;
1538}
1539
1540static int zd1201_get_power(struct net_device *dev,
1541 struct iw_request_info *info, struct iw_param *vwrq, char *extra)
1542{
1543 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1544 short enabled, level, duration;
1545 int err;
1546
1547 err = zd1201_getconfig16(zd, ZD1201_RID_CNFPMENABLED, &enabled);
1548 if (err)
1549 return err;
1550 err = zd1201_getconfig16(zd, ZD1201_RID_CNFPMEPS, &level);
1551 if (err)
1552 return err;
1553 err = zd1201_getconfig16(zd, ZD1201_RID_CNFMAXSLEEPDURATION, &duration);
1554 if (err)
1555 return err;
1556 vwrq->disabled = enabled ? 0 : 1;
1557 if (vwrq->flags & IW_POWER_TYPE) {
1558 if (vwrq->flags & IW_POWER_PERIOD) {
1559 vwrq->value = duration;
1560 vwrq->flags = IW_POWER_PERIOD;
1561 } else {
1562 vwrq->value = duration * level / 4;
1563 vwrq->flags = IW_POWER_TIMEOUT;
1564 }
1565 }
1566 if (vwrq->flags & IW_POWER_MODE) {
1567 if (enabled && level)
1568 vwrq->flags = IW_POWER_UNICAST_R;
1569 else
1570 vwrq->flags = IW_POWER_ALL_R;
1571 }
1572
1573 return 0;
1574}
1575
1576
1577static const iw_handler zd1201_iw_handler[] =
1578{
1579 (iw_handler) zd1201_config_commit, /* SIOCSIWCOMMIT */
1580 (iw_handler) zd1201_get_name, /* SIOCGIWNAME */
1581 (iw_handler) NULL, /* SIOCSIWNWID */
1582 (iw_handler) NULL, /* SIOCGIWNWID */
1583 (iw_handler) zd1201_set_freq, /* SIOCSIWFREQ */
1584 (iw_handler) zd1201_get_freq, /* SIOCGIWFREQ */
1585 (iw_handler) zd1201_set_mode, /* SIOCSIWMODE */
1586 (iw_handler) zd1201_get_mode, /* SIOCGIWMODE */
1587 (iw_handler) NULL, /* SIOCSIWSENS */
1588 (iw_handler) NULL, /* SIOCGIWSENS */
1589 (iw_handler) NULL, /* SIOCSIWRANGE */
1590 (iw_handler) zd1201_get_range, /* SIOCGIWRANGE */
1591 (iw_handler) NULL, /* SIOCSIWPRIV */
1592 (iw_handler) NULL, /* SIOCGIWPRIV */
1593 (iw_handler) NULL, /* SIOCSIWSTATS */
1594 (iw_handler) NULL, /* SIOCGIWSTATS */
1595 (iw_handler) NULL, /* SIOCSIWSPY */
1596 (iw_handler) NULL, /* SIOCGIWSPY */
1597 (iw_handler) NULL, /* -- hole -- */
1598 (iw_handler) NULL, /* -- hole -- */
1599 (iw_handler) NULL/*zd1201_set_wap*/, /* SIOCSIWAP */
1600 (iw_handler) zd1201_get_wap, /* SIOCGIWAP */
1601 (iw_handler) NULL, /* -- hole -- */
1602 (iw_handler) NULL, /* SIOCGIWAPLIST */
1603 (iw_handler) zd1201_set_scan, /* SIOCSIWSCAN */
1604 (iw_handler) zd1201_get_scan, /* SIOCGIWSCAN */
1605 (iw_handler) zd1201_set_essid, /* SIOCSIWESSID */
1606 (iw_handler) zd1201_get_essid, /* SIOCGIWESSID */
1607 (iw_handler) NULL, /* SIOCSIWNICKN */
1608 (iw_handler) zd1201_get_nick, /* SIOCGIWNICKN */
1609 (iw_handler) NULL, /* -- hole -- */
1610 (iw_handler) NULL, /* -- hole -- */
1611 (iw_handler) zd1201_set_rate, /* SIOCSIWRATE */
1612 (iw_handler) zd1201_get_rate, /* SIOCGIWRATE */
1613 (iw_handler) zd1201_set_rts, /* SIOCSIWRTS */
1614 (iw_handler) zd1201_get_rts, /* SIOCGIWRTS */
1615 (iw_handler) zd1201_set_frag, /* SIOCSIWFRAG */
1616 (iw_handler) zd1201_get_frag, /* SIOCGIWFRAG */
1617 (iw_handler) NULL, /* SIOCSIWTXPOW */
1618 (iw_handler) NULL, /* SIOCGIWTXPOW */
1619 (iw_handler) zd1201_set_retry, /* SIOCSIWRETRY */
1620 (iw_handler) zd1201_get_retry, /* SIOCGIWRETRY */
1621 (iw_handler) zd1201_set_encode, /* SIOCSIWENCODE */
1622 (iw_handler) zd1201_get_encode, /* SIOCGIWENCODE */
1623 (iw_handler) zd1201_set_power, /* SIOCSIWPOWER */
1624 (iw_handler) zd1201_get_power, /* SIOCGIWPOWER */
1625};
1626
1627static int zd1201_set_hostauth(struct net_device *dev,
1628 struct iw_request_info *info, struct iw_param *rrq, char *extra)
1629{
1630 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1631 int err;
1632
1633 if (!zd->ap)
1634 return -EOPNOTSUPP;
1635
1636 err = zd1201_setconfig16(zd, ZD1201_RID_CNFHOSTAUTH, rrq->value);
1637 if (err)
1638 return err;
1639 return 0;
1640}
1641
1642static int zd1201_get_hostauth(struct net_device *dev,
1643 struct iw_request_info *info, struct iw_param *rrq, char *extra)
1644{
1645 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1646 short hostauth;
1647 int err;
1648
1649 if (!zd->ap)
1650 return -EOPNOTSUPP;
1651
1652 err = zd1201_getconfig16(zd, ZD1201_RID_CNFHOSTAUTH, &hostauth);
1653 if (err)
1654 return err;
1655 rrq->value = hostauth;
1656 rrq->fixed = 1;
1657
1658 return 0;
1659}
1660
1661static int zd1201_auth_sta(struct net_device *dev,
1662 struct iw_request_info *info, struct sockaddr *sta, char *extra)
1663{
1664 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1665 unsigned char buffer[10];
1666
1667 if (!zd->ap)
1668 return -EOPNOTSUPP;
1669
1670 memcpy(buffer, sta->sa_data, ETH_ALEN);
1671 *(short*)(buffer+6) = 0; /* 0==success, 1==failure */
1672 *(short*)(buffer+8) = 0;
1673
1674 return zd1201_setconfig(zd, ZD1201_RID_AUTHENTICATESTA, buffer, 10, 1);
1675}
1676
1677static int zd1201_set_maxassoc(struct net_device *dev,
1678 struct iw_request_info *info, struct iw_param *rrq, char *extra)
1679{
1680 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1681 int err;
1682
1683 if (!zd->ap)
1684 return -EOPNOTSUPP;
1685
1686 err = zd1201_setconfig16(zd, ZD1201_RID_CNFMAXASSOCSTATIONS, rrq->value);
1687 if (err)
1688 return err;
1689 return 0;
1690}
1691
1692static int zd1201_get_maxassoc(struct net_device *dev,
1693 struct iw_request_info *info, struct iw_param *rrq, char *extra)
1694{
1695 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1696 short maxassoc;
1697 int err;
1698
1699 if (!zd->ap)
1700 return -EOPNOTSUPP;
1701
1702 err = zd1201_getconfig16(zd, ZD1201_RID_CNFMAXASSOCSTATIONS, &maxassoc);
1703 if (err)
1704 return err;
1705 rrq->value = maxassoc;
1706 rrq->fixed = 1;
1707
1708 return 0;
1709}
1710
1711static const iw_handler zd1201_private_handler[] = {
1712 (iw_handler) zd1201_set_hostauth, /* ZD1201SIWHOSTAUTH */
1713 (iw_handler) zd1201_get_hostauth, /* ZD1201GIWHOSTAUTH */
1714 (iw_handler) zd1201_auth_sta, /* ZD1201SIWAUTHSTA */
1715 (iw_handler) NULL, /* nothing to get */
1716 (iw_handler) zd1201_set_maxassoc, /* ZD1201SIMAXASSOC */
1717 (iw_handler) zd1201_get_maxassoc, /* ZD1201GIMAXASSOC */
1718};
1719
1720static const struct iw_priv_args zd1201_private_args[] = {
1721 { ZD1201SIWHOSTAUTH, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
1722 IW_PRIV_TYPE_NONE, "sethostauth" },
1723 { ZD1201GIWHOSTAUTH, IW_PRIV_TYPE_NONE,
1724 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "gethostauth" },
1725 { ZD1201SIWAUTHSTA, IW_PRIV_TYPE_ADDR | IW_PRIV_SIZE_FIXED | 1,
1726 IW_PRIV_TYPE_NONE, "authstation" },
1727 { ZD1201SIWMAXASSOC, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
1728 IW_PRIV_TYPE_NONE, "setmaxassoc" },
1729 { ZD1201GIWMAXASSOC, IW_PRIV_TYPE_NONE,
1730 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getmaxassoc" },
1731};
1732
1733static const struct iw_handler_def zd1201_iw_handlers = {
1734 .num_standard = sizeof(zd1201_iw_handler)/sizeof(iw_handler),
1735 .num_private = sizeof(zd1201_private_handler)/sizeof(iw_handler),
1736 .num_private_args = sizeof(zd1201_private_args)/sizeof(struct iw_priv_args),
1737 .standard = (iw_handler *)zd1201_iw_handler,
1738 .private = (iw_handler *)zd1201_private_handler,
1739 .private_args = (struct iw_priv_args *) zd1201_private_args,
1740};
1741
1742static int zd1201_probe(struct usb_interface *interface,
1743 const struct usb_device_id *id)
1744{
1745 struct zd1201 *zd;
1746 struct usb_device *usb;
1747 int i, err;
1748 short porttype;
1749 char buf[IW_ESSID_MAX_SIZE+2];
1750
1751 usb = interface_to_usbdev(interface);
1752
1753 zd = kmalloc(sizeof(struct zd1201), GFP_KERNEL);
1754 if (!zd) {
1755 return -ENOMEM;
1756 }
1757 memset(zd, 0, sizeof(struct zd1201));
1758 zd->ap = ap;
1759 zd->usb = usb;
1760 zd->removed = 0;
1761 init_waitqueue_head(&zd->rxdataq);
1762 INIT_HLIST_HEAD(&zd->fraglist);
1763
1764 err = zd1201_fw_upload(usb, zd->ap);
1765 if (err) {
1766 dev_err(&usb->dev, "zd1201 firmware upload failed: %d\n", err);
1767 goto err_zd;
1768 }
1769
1770 zd->endp_in = 1;
1771 zd->endp_out = 1;
1772 zd->endp_out2 = 2;
1773 zd->rx_urb = usb_alloc_urb(0, GFP_KERNEL);
1774 zd->tx_urb = usb_alloc_urb(0, GFP_KERNEL);
1775 if (!zd->rx_urb || !zd->tx_urb)
1776 goto err_zd;
1777
1778 for(i = 0; i<100; i++)
1779 udelay(1000);
1780
1781 err = zd1201_drvr_start(zd);
1782 if (err)
1783 goto err_zd;
1784
1785 err = zd1201_setconfig16(zd, ZD1201_RID_CNFMAXDATALEN, 2312);
1786 if (err)
1787 goto err_start;
1788
1789 err = zd1201_setconfig16(zd, ZD1201_RID_TXRATECNTL,
1790 ZD1201_RATEB1 | ZD1201_RATEB2 | ZD1201_RATEB5 | ZD1201_RATEB11);
1791 if (err)
1792 goto err_start;
1793
1794 zd->dev = alloc_etherdev(0);
1795 if (!zd->dev)
1796 goto err_start;
1797
1798 zd->dev->priv = zd;
1799 zd->dev->open = zd1201_net_open;
1800 zd->dev->stop = zd1201_net_stop;
1801 zd->dev->get_stats = zd1201_get_stats;
1802 zd->dev->get_wireless_stats = zd1201_get_wireless_stats;
1803 zd->dev->wireless_handlers =
1804 (struct iw_handler_def *)&zd1201_iw_handlers;
1805 zd->dev->hard_start_xmit = zd1201_hard_start_xmit;
1806 zd->dev->watchdog_timeo = ZD1201_TX_TIMEOUT;
1807 zd->dev->tx_timeout = zd1201_tx_timeout;
1808 zd->dev->set_multicast_list = zd1201_set_multicast;
1809 zd->dev->set_mac_address = zd1201_set_mac_address;
1810 strcpy(zd->dev->name, "wlan%d");
1811
1812 err = zd1201_getconfig(zd, ZD1201_RID_CNFOWNMACADDR,
1813 zd->dev->dev_addr, zd->dev->addr_len);
1814 if (err)
1815 goto err_net;
1816
1817 /* Set wildcard essid to match zd->essid */
1818 *(__le16 *)buf = cpu_to_le16(0);
1819 err = zd1201_setconfig(zd, ZD1201_RID_CNFDESIREDSSID, buf,
1820 IW_ESSID_MAX_SIZE+2, 1);
1821 if (err)
1822 goto err_net;
1823
1824 if (zd->ap)
1825 porttype = ZD1201_PORTTYPE_AP;
1826 else
1827 porttype = ZD1201_PORTTYPE_BSS;
1828 err = zd1201_setconfig16(zd, ZD1201_RID_CNFPORTTYPE, porttype);
1829 if (err)
1830 goto err_net;
1831
1832 err = register_netdev(zd->dev);
1833 if (err)
1834 goto err_net;
1835 dev_info(&usb->dev, "%s: ZD1201 USB Wireless interface\n",
1836 zd->dev->name);
1837
1838 usb_set_intfdata(interface, zd);
1839 return 0;
1840
1841err_net:
1842 free_netdev(zd->dev);
1843err_start:
1844 /* Leave the device in reset state */
1845 zd1201_docmd(zd, ZD1201_CMDCODE_INIT, 0, 0, 0);
1846err_zd:
1847 if (zd->tx_urb)
1848 usb_free_urb(zd->tx_urb);
1849 if (zd->rx_urb)
1850 usb_free_urb(zd->rx_urb);
1851 kfree(zd);
1852 return err;
1853}
1854
1855static void zd1201_disconnect(struct usb_interface *interface)
1856{
1857 struct zd1201 *zd=(struct zd1201 *)usb_get_intfdata(interface);
1858 struct hlist_node *node, *node2;
1859 struct zd1201_frag *frag;
1860
1861 if (!zd)
1862 return;
1863 usb_set_intfdata(interface, NULL);
1864 if (zd->dev) {
1865 unregister_netdev(zd->dev);
1866 free_netdev(zd->dev);
1867 }
1868
1869 hlist_for_each_entry_safe(frag, node, node2, &zd->fraglist, fnode) {
1870 hlist_del_init(&frag->fnode);
1871 kfree_skb(frag->skb);
1872 kfree(frag);
1873 }
1874
1875 if (zd->tx_urb) {
1876 usb_kill_urb(zd->tx_urb);
1877 usb_free_urb(zd->tx_urb);
1878 }
1879 if (zd->rx_urb) {
1880 usb_kill_urb(zd->rx_urb);
1881 usb_free_urb(zd->rx_urb);
1882 }
1883 kfree(zd);
1884}
1885
1886#ifdef CONFIG_PM
1887
1888static int zd1201_suspend(struct usb_interface *interface,
1889 pm_message_t message)
1890{
1891 struct zd1201 *zd = usb_get_intfdata(interface);
1892
1893 netif_device_detach(zd->dev);
1894
1895 zd->was_enabled = zd->mac_enabled;
1896
1897 if (zd->was_enabled)
1898 return zd1201_disable(zd);
1899 else
1900 return 0;
1901}
1902
1903static int zd1201_resume(struct usb_interface *interface)
1904{
1905 struct zd1201 *zd = usb_get_intfdata(interface);
1906
1907 if (!zd || !zd->dev)
1908 return -ENODEV;
1909
1910 netif_device_attach(zd->dev);
1911
1912 if (zd->was_enabled)
1913 return zd1201_enable(zd);
1914 else
1915 return 0;
1916}
1917
1918#else
1919
1920#define zd1201_suspend NULL
1921#define zd1201_resume NULL
1922
1923#endif
1924
1925static struct usb_driver zd1201_usb = {
1926 .owner = THIS_MODULE,
1927 .name = "zd1201",
1928 .probe = zd1201_probe,
1929 .disconnect = zd1201_disconnect,
1930 .id_table = zd1201_table,
1931 .suspend = zd1201_suspend,
1932 .resume = zd1201_resume,
1933};
1934
1935static int __init zd1201_init(void)
1936{
1937 return usb_register(&zd1201_usb);
1938}
1939
1940static void __exit zd1201_cleanup(void)
1941{
1942 usb_deregister(&zd1201_usb);
1943}
1944
1945module_init(zd1201_init);
1946module_exit(zd1201_cleanup);