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/spare/repo/netdev-2.6 branch 'master'
[linux-2.6/verdex.git] / drivers / usb / net / zd1201.c
blob2a1d489e92c024793f9437a0a8ac0d3538af9950
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 = 0; /* 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, 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 */
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, struct pt_regs *regs)
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, 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(struct zd1201_frag*),
350 GFP_ATOMIC);
351 if (!frag)
352 goto resubmit;
353 skb = dev_alloc_skb(IEEE80211_DATA_LEN +14+2);
354 if (!skb) {
355 kfree(frag);
356 goto resubmit;
357 }
358 frag->skb = skb;
359 frag->seq = seq & IEEE80211_SCTL_SEQ;
360 skb_reserve(skb, 2);
361 memcpy(skb_put(skb, 12), &data[datalen-14], 12);
362 memcpy(skb_put(skb, 2), &data[6], 2);
363 memcpy(skb_put(skb, len), data+8, len);
364 hlist_add_head(&frag->fnode, &zd->fraglist);
365 goto resubmit;
366 }
367 hlist_for_each_entry(frag, node, &zd->fraglist, fnode)
368 if(frag->seq == (seq&IEEE80211_SCTL_SEQ))
369 break;
370 if (!frag)
371 goto resubmit;
372 skb = frag->skb;
373 ptr = skb_put(skb, len);
374 if (ptr)
375 memcpy(ptr, data+8, len);
376 if (fc & IEEE80211_FCTL_MOREFRAGS)
377 goto resubmit;
378 hlist_del_init(&frag->fnode);
379 kfree(frag);
380 /* Fallthrough */
381 } else {
382 if (datalen<14)
383 goto resubmit;
384 skb = dev_alloc_skb(len + 14 + 2);
385 if (!skb)
386 goto resubmit;
387 skb_reserve(skb, 2);
388 memcpy(skb_put(skb, 12), &data[datalen-14], 12);
389 memcpy(skb_put(skb, 2), &data[6], 2);
390 memcpy(skb_put(skb, len), data+8, len);
391 }
392 skb->dev = zd->dev;
393 skb->dev->last_rx = jiffies;
394 skb->protocol = eth_type_trans(skb, zd->dev);
395 zd->stats.rx_packets++;
396 zd->stats.rx_bytes += skb->len;
397 netif_rx(skb);
398 }
399 resubmit:
400 memset(data, 0, ZD1201_RXSIZE);
401
402 urb->status = 0;
403 urb->dev = zd->usb;
404 if(usb_submit_urb(urb, GFP_ATOMIC))
405 free = 1;
406
407 exit:
408 if (free) {
409 zd->rxlen = 0;
410 zd->rxdatas = 1;
411 wake_up(&zd->rxdataq);
412 kfree(urb->transfer_buffer);
413 }
414 return;
415 }
416
417 static int zd1201_getconfig(struct zd1201 *zd, int rid, void *riddata,
418 unsigned int riddatalen)
419 {
420 int err;
421 int i = 0;
422 int code;
423 int rid_fid;
424 int length;
425 unsigned char *pdata;
426
427 zd->rxdatas = 0;
428 err = zd1201_docmd(zd, ZD1201_CMDCODE_ACCESS, rid, 0, 0);
429 if (err)
430 return err;
431
432 wait_event_interruptible(zd->rxdataq, zd->rxdatas);
433 if (!zd->rxlen)
434 return -EIO;
435
436 code = le16_to_cpu(*(__le16*)(&zd->rxdata[4]));
437 rid_fid = le16_to_cpu(*(__le16*)(&zd->rxdata[6]));
438 length = le16_to_cpu(*(__le16*)(&zd->rxdata[8]));
439 if (length > zd->rxlen)
440 length = zd->rxlen-6;
441
442 /* If access bit is not on, then error */
443 if ((code & ZD1201_ACCESSBIT) != ZD1201_ACCESSBIT || rid_fid != rid )
444 return -EINVAL;
445
446 /* Not enough buffer for allocating data */
447 if (riddatalen != (length - 4)) {
448 dev_dbg(&zd->usb->dev, "riddatalen mismatches, expected=%u, (packet=%u) length=%u, rid=0x%04X, rid_fid=0x%04X\n",
449 riddatalen, zd->rxlen, length, rid, rid_fid);
450 return -ENODATA;
451 }
452
453 zd->rxdatas = 0;
454 /* Issue SetRxRid commnd */
455 err = zd1201_docmd(zd, ZD1201_CMDCODE_SETRXRID, rid, 0, length);
456 if (err)
457 return err;
458
459 /* Receive RID record from resource packets */
460 wait_event_interruptible(zd->rxdataq, zd->rxdatas);
461 if (!zd->rxlen)
462 return -EIO;
463
464 if (zd->rxdata[zd->rxlen - 1] != ZD1201_PACKET_RESOURCE) {
465 dev_dbg(&zd->usb->dev, "Packet type mismatch: 0x%x not 0x3\n",
466 zd->rxdata[zd->rxlen-1]);
467 return -EINVAL;
468 }
469
470 /* Set the data pointer and received data length */
471 pdata = zd->rxdata;
472 length = zd->rxlen;
473
474 do {
475 int actual_length;
476
477 actual_length = (length > 64) ? 64 : length;
478
479 if(pdata[0] != 0x3) {
480 dev_dbg(&zd->usb->dev, "Rx Resource packet type error: %02X\n",
481 pdata[0]);
482 return -EINVAL;
483 }
484
485 if (actual_length != 64) {
486 /* Trim the last packet type byte */
487 actual_length--;
488 }
489
490 /* Skip the 4 bytes header (RID length and RID) */
491 if(i == 0) {
492 pdata += 8;
493 actual_length -= 8;
494 }
495 else {
496 pdata += 4;
497 actual_length -= 4;
498 }
499
500 memcpy(riddata, pdata, actual_length);
501 riddata += actual_length;
502 pdata += actual_length;
503 length -= 64;
504 i++;
505 } while (length > 0);
506
507 return 0;
508 }
509
510 /*
511 * resreq:
512 * byte type
513 * byte sequence
514 * u16 reserved
515 * byte data[12]
516 * total: 16
517 */
518 static int zd1201_setconfig(struct zd1201 *zd, int rid, void *buf, int len, int wait)
519 {
520 int err;
521 unsigned char *request;
522 int reqlen;
523 char seq=0;
524 struct urb *urb;
525 unsigned int gfp_mask = wait ? GFP_NOIO : GFP_ATOMIC;
526
527 len += 4; /* first 4 are for header */
528
529 zd->rxdatas = 0;
530 zd->rxlen = 0;
531 for (seq=0; len > 0; seq++) {
532 request = kmalloc(16, gfp_mask);
533 if (!request)
534 return -ENOMEM;
535 urb = usb_alloc_urb(0, gfp_mask);
536 if (!urb) {
537 kfree(request);
538 return -ENOMEM;
539 }
540 memset(request, 0, 16);
541 reqlen = len>12 ? 12 : len;
542 request[0] = ZD1201_USB_RESREQ;
543 request[1] = seq;
544 request[2] = 0;
545 request[3] = 0;
546 if (request[1] == 0) {
547 /* add header */
548 *(__le16*)&request[4] = cpu_to_le16((len-2+1)/2);
549 *(__le16*)&request[6] = cpu_to_le16(rid);
550 memcpy(request+8, buf, reqlen-4);
551 buf += reqlen-4;
552 } else {
553 memcpy(request+4, buf, reqlen);
554 buf += reqlen;
555 }
556
557 len -= reqlen;
558
559 usb_fill_bulk_urb(urb, zd->usb, usb_sndbulkpipe(zd->usb,
560 zd->endp_out2), request, 16, zd1201_usbfree, zd);
561 err = usb_submit_urb(urb, gfp_mask);
562 if (err)
563 goto err;
564 }
565
566 request = kmalloc(16, gfp_mask);
567 if (!request)
568 return -ENOMEM;
569 urb = usb_alloc_urb(0, gfp_mask);
570 if (!urb) {
571 kfree(request);
572 return -ENOMEM;
573 }
574 *((__le32*)request) = cpu_to_le32(ZD1201_USB_CMDREQ);
575 *((__le16*)&request[4]) =
576 cpu_to_le16(ZD1201_CMDCODE_ACCESS|ZD1201_ACCESSBIT);
577 *((__le16*)&request[6]) = cpu_to_le16(rid);
578 *((__le16*)&request[8]) = cpu_to_le16(0);
579 *((__le16*)&request[10]) = cpu_to_le16(0);
580 usb_fill_bulk_urb(urb, zd->usb, usb_sndbulkpipe(zd->usb, zd->endp_out2),
581 request, 16, zd1201_usbfree, zd);
582 err = usb_submit_urb(urb, gfp_mask);
583 if (err)
584 goto err;
585
586 if (wait) {
587 wait_event_interruptible(zd->rxdataq, zd->rxdatas);
588 if (!zd->rxlen || le16_to_cpu(*(__le16*)&zd->rxdata[6]) != rid) {
589 dev_dbg(&zd->usb->dev, "wrong or no RID received\n");
590 }
591 }
592
593 return 0;
594 err:
595 kfree(request);
596 usb_free_urb(urb);
597 return err;
598 }
599
600 static inline int zd1201_getconfig16(struct zd1201 *zd, int rid, short *val)
601 {
602 int err;
603 __le16 zdval;
604
605 err = zd1201_getconfig(zd, rid, &zdval, sizeof(__le16));
606 if (err)
607 return err;
608 *val = le16_to_cpu(zdval);
609 return 0;
610 }
611
612 static inline int zd1201_setconfig16(struct zd1201 *zd, int rid, short val)
613 {
614 __le16 zdval = cpu_to_le16(val);
615 return (zd1201_setconfig(zd, rid, &zdval, sizeof(__le16), 1));
616 }
617
618 static int zd1201_drvr_start(struct zd1201 *zd)
619 {
620 int err, i;
621 short max;
622 __le16 zdmax;
623 unsigned char *buffer;
624
625 buffer = kmalloc(ZD1201_RXSIZE, GFP_KERNEL);
626 if (!buffer)
627 return -ENOMEM;
628 memset(buffer, 0, ZD1201_RXSIZE);
629
630 usb_fill_bulk_urb(zd->rx_urb, zd->usb,
631 usb_rcvbulkpipe(zd->usb, zd->endp_in), buffer, ZD1201_RXSIZE,
632 zd1201_usbrx, zd);
633
634 err = usb_submit_urb(zd->rx_urb, GFP_KERNEL);
635 if (err)
636 goto err_buffer;
637
638 err = zd1201_docmd(zd, ZD1201_CMDCODE_INIT, 0, 0, 0);
639 if (err)
640 goto err_urb;
641
642 err = zd1201_getconfig(zd, ZD1201_RID_CNFMAXTXBUFFERNUMBER, &zdmax,
643 sizeof(__le16));
644 if (err)
645 goto err_urb;
646
647 max = le16_to_cpu(zdmax);
648 for (i=0; i<max; i++) {
649 err = zd1201_docmd(zd, ZD1201_CMDCODE_ALLOC, 1514, 0, 0);
650 if (err)
651 goto err_urb;
652 }
653
654 return 0;
655
656 err_urb:
657 usb_kill_urb(zd->rx_urb);
658 return err;
659 err_buffer:
660 kfree(buffer);
661 return err;
662 }
663
664 /* Magic alert: The firmware doesn't seem to like the MAC state being
665 * toggled in promisc (aka monitor) mode.
666 * (It works a number of times, but will halt eventually)
667 * So we turn it of before disabling and on after enabling if needed.
668 */
669 static int zd1201_enable(struct zd1201 *zd)
670 {
671 int err;
672
673 if (zd->mac_enabled)
674 return 0;
675
676 err = zd1201_docmd(zd, ZD1201_CMDCODE_ENABLE, 0, 0, 0);
677 if (!err)
678 zd->mac_enabled = 1;
679
680 if (zd->monitor)
681 err = zd1201_setconfig16(zd, ZD1201_RID_PROMISCUOUSMODE, 1);
682
683 return err;
684 }
685
686 static int zd1201_disable(struct zd1201 *zd)
687 {
688 int err;
689
690 if (!zd->mac_enabled)
691 return 0;
692 if (zd->monitor) {
693 err = zd1201_setconfig16(zd, ZD1201_RID_PROMISCUOUSMODE, 0);
694 if (err)
695 return err;
696 }
697
698 err = zd1201_docmd(zd, ZD1201_CMDCODE_DISABLE, 0, 0, 0);
699 if (!err)
700 zd->mac_enabled = 0;
701 return err;
702 }
703
704 static int zd1201_mac_reset(struct zd1201 *zd)
705 {
706 if (!zd->mac_enabled)
707 return 0;
708 zd1201_disable(zd);
709 return zd1201_enable(zd);
710 }
711
712 static int zd1201_join(struct zd1201 *zd, char *essid, int essidlen)
713 {
714 int err, val;
715 char buf[IW_ESSID_MAX_SIZE+2];
716
717 err = zd1201_disable(zd);
718 if (err)
719 return err;
720
721 val = ZD1201_CNFAUTHENTICATION_OPENSYSTEM;
722 val |= ZD1201_CNFAUTHENTICATION_SHAREDKEY;
723 err = zd1201_setconfig16(zd, ZD1201_RID_CNFAUTHENTICATION, val);
724 if (err)
725 return err;
726
727 *(__le16 *)buf = cpu_to_le16(essidlen);
728 memcpy(buf+2, essid, essidlen);
729 if (!zd->ap) { /* Normal station */
730 err = zd1201_setconfig(zd, ZD1201_RID_CNFDESIREDSSID, buf,
731 IW_ESSID_MAX_SIZE+2, 1);
732 if (err)
733 return err;
734 } else { /* AP */
735 err = zd1201_setconfig(zd, ZD1201_RID_CNFOWNSSID, buf,
736 IW_ESSID_MAX_SIZE+2, 1);
737 if (err)
738 return err;
739 }
740
741 err = zd1201_setconfig(zd, ZD1201_RID_CNFOWNMACADDR,
742 zd->dev->dev_addr, zd->dev->addr_len, 1);
743 if (err)
744 return err;
745
746 err = zd1201_enable(zd);
747 if (err)
748 return err;
749
750 msleep(100);
751 return 0;
752 }
753
754 static int zd1201_net_open(struct net_device *dev)
755 {
756 struct zd1201 *zd = (struct zd1201 *)dev->priv;
757
758 /* Start MAC with wildcard if no essid set */
759 if (!zd->mac_enabled)
760 zd1201_join(zd, zd->essid, zd->essidlen);
761 netif_start_queue(dev);
762
763 return 0;
764 }
765
766 static int zd1201_net_stop(struct net_device *dev)
767 {
768 netif_stop_queue(dev);
769
770 return 0;
771 }
772
773 /*
774 RFC 1042 encapsulates Ethernet frames in 802.11 frames
775 by prefixing them with 0xaa, 0xaa, 0x03) followed by a SNAP OID of 0
776 (0x00, 0x00, 0x00). Zd requires an additional padding, copy
777 of ethernet addresses, length of the standard RFC 1042 packet
778 and a command byte (which is nul for tx).
779
780 tx frame (from Wlan NG):
781 RFC 1042:
782 llc 0xAA 0xAA 0x03 (802.2 LLC)
783 snap 0x00 0x00 0x00 (Ethernet encapsulated)
784 type 2 bytes, Ethernet type field
785 payload (minus eth header)
786 Zydas specific:
787 padding 1B if (skb->len+8+1)%64==0
788 Eth MAC addr 12 bytes, Ethernet MAC addresses
789 length 2 bytes, RFC 1042 packet length
790 (llc+snap+type+payload)
791 zd 1 null byte, zd1201 packet type
792 */
793 static int zd1201_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
794 {
795 struct zd1201 *zd = (struct zd1201 *)dev->priv;
796 unsigned char *txbuf = zd->txdata;
797 int txbuflen, pad = 0, err;
798 struct urb *urb = zd->tx_urb;
799
800 if (!zd->mac_enabled || zd->monitor) {
801 zd->stats.tx_dropped++;
802 kfree_skb(skb);
803 return 0;
804 }
805 netif_stop_queue(dev);
806
807 txbuflen = skb->len + 8 + 1;
808 if (txbuflen%64 == 0) {
809 pad = 1;
810 txbuflen++;
811 }
812 txbuf[0] = 0xAA;
813 txbuf[1] = 0xAA;
814 txbuf[2] = 0x03;
815 txbuf[3] = 0x00; /* rfc1042 */
816 txbuf[4] = 0x00;
817 txbuf[5] = 0x00;
818
819 memcpy(txbuf+6, skb->data+12, skb->len-12);
820 if (pad)
821 txbuf[skb->len-12+6]=0;
822 memcpy(txbuf+skb->len-12+6+pad, skb->data, 12);
823 *(__be16*)&txbuf[skb->len+6+pad] = htons(skb->len-12+6);
824 txbuf[txbuflen-1] = 0;
825
826 usb_fill_bulk_urb(urb, zd->usb, usb_sndbulkpipe(zd->usb, zd->endp_out),
827 txbuf, txbuflen, zd1201_usbtx, zd);
828
829 err = usb_submit_urb(zd->tx_urb, GFP_ATOMIC);
830 if (err) {
831 zd->stats.tx_errors++;
832 netif_start_queue(dev);
833 return err;
834 }
835 zd->stats.tx_packets++;
836 zd->stats.tx_bytes += skb->len;
837 dev->trans_start = jiffies;
838 kfree_skb(skb);
839
840 return 0;
841 }
842
843 static void zd1201_tx_timeout(struct net_device *dev)
844 {
845 struct zd1201 *zd = (struct zd1201 *)dev->priv;
846
847 if (!zd)
848 return;
849 dev_warn(&zd->usb->dev, "%s: TX timeout, shooting down urb\n",
850 dev->name);
851 zd->tx_urb->transfer_flags |= URB_ASYNC_UNLINK;
852 usb_unlink_urb(zd->tx_urb);
853 zd->stats.tx_errors++;
854 /* Restart the timeout to quiet the watchdog: */
855 dev->trans_start = jiffies;
856 }
857
858 static int zd1201_set_mac_address(struct net_device *dev, void *p)
859 {
860 struct sockaddr *addr = p;
861 struct zd1201 *zd = (struct zd1201 *)dev->priv;
862 int err;
863
864 if (!zd)
865 return -ENODEV;
866
867 err = zd1201_setconfig(zd, ZD1201_RID_CNFOWNMACADDR,
868 addr->sa_data, dev->addr_len, 1);
869 if (err)
870 return err;
871 memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
872
873 return zd1201_mac_reset(zd);
874 }
875
876 static struct net_device_stats *zd1201_get_stats(struct net_device *dev)
877 {
878 struct zd1201 *zd = (struct zd1201 *)dev->priv;
879
880 return &zd->stats;
881 }
882
883 static struct iw_statistics *zd1201_get_wireless_stats(struct net_device *dev)
884 {
885 struct zd1201 *zd = (struct zd1201 *)dev->priv;
886
887 return &zd->iwstats;
888 }
889
890 static void zd1201_set_multicast(struct net_device *dev)
891 {
892 struct zd1201 *zd = (struct zd1201 *)dev->priv;
893 struct dev_mc_list *mc = dev->mc_list;
894 unsigned char reqbuf[ETH_ALEN*ZD1201_MAXMULTI];
895 int i;
896
897 if (dev->mc_count > ZD1201_MAXMULTI)
898 return;
899
900 for (i=0; i<dev->mc_count; i++) {
901 memcpy(reqbuf+i*ETH_ALEN, mc->dmi_addr, ETH_ALEN);
902 mc = mc->next;
903 }
904 zd1201_setconfig(zd, ZD1201_RID_CNFGROUPADDRESS, reqbuf,
905 dev->mc_count*ETH_ALEN, 0);
906
907 }
908
909 static int zd1201_config_commit(struct net_device *dev,
910 struct iw_request_info *info, struct iw_point *data, char *essid)
911 {
912 struct zd1201 *zd = (struct zd1201 *)dev->priv;
913
914 return zd1201_mac_reset(zd);
915 }
916
917 static int zd1201_get_name(struct net_device *dev,
918 struct iw_request_info *info, char *name, char *extra)
919 {
920 strcpy(name, "IEEE 802.11b");
921
922 return 0;
923 }
924
925 static int zd1201_set_freq(struct net_device *dev,
926 struct iw_request_info *info, struct iw_freq *freq, char *extra)
927 {
928 struct zd1201 *zd = (struct zd1201 *)dev->priv;
929 short channel = 0;
930 int err;
931
932 if (freq->e == 0)
933 channel = freq->m;
934 else {
935 if (freq->m >= 2482)
936 channel = 14;
937 if (freq->m >= 2407)
938 channel = (freq->m-2407)/5;
939 }
940
941 err = zd1201_setconfig16(zd, ZD1201_RID_CNFOWNCHANNEL, channel);
942 if (err)
943 return err;
944
945 zd1201_mac_reset(zd);
946
947 return 0;
948 }
949
950 static int zd1201_get_freq(struct net_device *dev,
951 struct iw_request_info *info, struct iw_freq *freq, char *extra)
952 {
953 struct zd1201 *zd = (struct zd1201 *)dev->priv;
954 short channel;
955 int err;
956
957 err = zd1201_getconfig16(zd, ZD1201_RID_CNFOWNCHANNEL, &channel);
958 if (err)
959 return err;
960 freq->e = 0;
961 freq->m = channel;
962
963 return 0;
964 }
965
966 static int zd1201_set_mode(struct net_device *dev,
967 struct iw_request_info *info, __u32 *mode, char *extra)
968 {
969 struct zd1201 *zd = (struct zd1201 *)dev->priv;
970 short porttype, monitor = 0;
971 unsigned char buffer[IW_ESSID_MAX_SIZE+2];
972 int err;
973
974 if (zd->ap) {
975 if (*mode != IW_MODE_MASTER)
976 return -EINVAL;
977 return 0;
978 }
979
980 err = zd1201_setconfig16(zd, ZD1201_RID_PROMISCUOUSMODE, 0);
981 if (err)
982 return err;
983 zd->dev->type = ARPHRD_ETHER;
984 switch(*mode) {
985 case IW_MODE_MONITOR:
986 monitor = 1;
987 zd->dev->type = ARPHRD_IEEE80211;
988 /* Make sure we are no longer associated with by
989 setting an 'impossible' essid.
990 (otherwise we mess up firmware)
991 */
992 zd1201_join(zd, "\0-*#\0", 5);
993 /* Put port in pIBSS */
994 case 8: /* No pseudo-IBSS in wireless extensions (yet) */
995 porttype = ZD1201_PORTTYPE_PSEUDOIBSS;
996 break;
997 case IW_MODE_ADHOC:
998 porttype = ZD1201_PORTTYPE_IBSS;
999 break;
1000 case IW_MODE_INFRA:
1001 porttype = ZD1201_PORTTYPE_BSS;
1002 break;
1003 default:
1004 return -EINVAL;
1005 }
1006
1007 err = zd1201_setconfig16(zd, ZD1201_RID_CNFPORTTYPE, porttype);
1008 if (err)
1009 return err;
1010 if (zd->monitor && !monitor) {
1011 zd1201_disable(zd);
1012 *(__le16 *)buffer = cpu_to_le16(zd->essidlen);
1013 memcpy(buffer+2, zd->essid, zd->essidlen);
1014 err = zd1201_setconfig(zd, ZD1201_RID_CNFDESIREDSSID,
1015 buffer, IW_ESSID_MAX_SIZE+2, 1);
1016 if (err)
1017 return err;
1018 }
1019 zd->monitor=monitor;
1020 /* If monitor mode is set we don't actually turn it on here since it
1021 * is done during mac reset anyway (see zd1201_mac_enable).
1022 */
1023
1024 zd1201_mac_reset(zd);
1025
1026 return 0;
1027 }
1028
1029 static int zd1201_get_mode(struct net_device *dev,
1030 struct iw_request_info *info, __u32 *mode, char *extra)
1031 {
1032 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1033 short porttype;
1034 int err;
1035
1036 err = zd1201_getconfig16(zd, ZD1201_RID_CNFPORTTYPE, &porttype);
1037 if (err)
1038 return err;
1039 switch(porttype) {
1040 case ZD1201_PORTTYPE_IBSS:
1041 *mode = IW_MODE_ADHOC;
1042 break;
1043 case ZD1201_PORTTYPE_BSS:
1044 *mode = IW_MODE_INFRA;
1045 break;
1046 case ZD1201_PORTTYPE_WDS:
1047 *mode = IW_MODE_REPEAT;
1048 break;
1049 case ZD1201_PORTTYPE_PSEUDOIBSS:
1050 *mode = 8;/* No Pseudo-IBSS... */
1051 break;
1052 case ZD1201_PORTTYPE_AP:
1053 *mode = IW_MODE_MASTER;
1054 break;
1055 default:
1056 dev_dbg(&zd->usb->dev, "Unknown porttype: %d\n",
1057 porttype);
1058 *mode = IW_MODE_AUTO;
1059 }
1060 if (zd->monitor)
1061 *mode = IW_MODE_MONITOR;
1062
1063 return 0;
1064 }
1065
1066 static int zd1201_get_range(struct net_device *dev,
1067 struct iw_request_info *info, struct iw_point *wrq, char *extra)
1068 {
1069 struct iw_range *range = (struct iw_range *)extra;
1070
1071 wrq->length = sizeof(struct iw_range);
1072 memset(range, 0, sizeof(struct iw_range));
1073 range->we_version_compiled = WIRELESS_EXT;
1074 range->we_version_source = WIRELESS_EXT;
1075
1076 range->max_qual.qual = 128;
1077 range->max_qual.level = 128;
1078 range->max_qual.noise = 128;
1079 range->max_qual.updated = 7;
1080
1081 range->encoding_size[0] = 5;
1082 range->encoding_size[1] = 13;
1083 range->num_encoding_sizes = 2;
1084 range->max_encoding_tokens = ZD1201_NUMKEYS;
1085
1086 range->num_bitrates = 4;
1087 range->bitrate[0] = 1000000;
1088 range->bitrate[1] = 2000000;
1089 range->bitrate[2] = 5500000;
1090 range->bitrate[3] = 11000000;
1091
1092 range->min_rts = 0;
1093 range->min_frag = ZD1201_FRAGMIN;
1094 range->max_rts = ZD1201_RTSMAX;
1095 range->min_frag = ZD1201_FRAGMAX;
1096
1097 return 0;
1098 }
1099
1100 /* Little bit of magic here: we only get the quality if we poll
1101 * for it, and we never get an actual request to trigger such
1102 * a poll. Therefore we 'assume' that the user will soon ask for
1103 * the stats after asking the bssid.
1104 */
1105 static int zd1201_get_wap(struct net_device *dev,
1106 struct iw_request_info *info, struct sockaddr *ap_addr, char *extra)
1107 {
1108 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1109 unsigned char buffer[6];
1110
1111 if (!zd1201_getconfig(zd, ZD1201_RID_COMMSQUALITY, buffer, 6)) {
1112 /* Unfortunately the quality and noise reported is useless.
1113 they seem to be accumulators that increase until you
1114 read them, unless we poll on a fixed interval we can't
1115 use them
1116 */
1117 /*zd->iwstats.qual.qual = le16_to_cpu(((__le16 *)buffer)[0]);*/
1118 zd->iwstats.qual.level = le16_to_cpu(((__le16 *)buffer)[1]);
1119 /*zd->iwstats.qual.noise = le16_to_cpu(((__le16 *)buffer)[2]);*/
1120 zd->iwstats.qual.updated = 2;
1121 }
1122
1123 return zd1201_getconfig(zd,ZD1201_RID_CURRENTBSSID,ap_addr->sa_data,6);
1124 }
1125
1126 static int zd1201_set_scan(struct net_device *dev,
1127 struct iw_request_info *info, struct iw_point *srq, char *extra)
1128 {
1129 /* We do everything in get_scan */
1130 return 0;
1131 }
1132
1133 static int zd1201_get_scan(struct net_device *dev,
1134 struct iw_request_info *info, struct iw_point *srq, char *extra)
1135 {
1136 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1137 int err, i, j, enabled_save;
1138 struct iw_event iwe;
1139 char *cev = extra;
1140 char *end_buf = extra + IW_SCAN_MAX_DATA;
1141
1142 /* No scanning in AP mode */
1143 if (zd->ap)
1144 return -EOPNOTSUPP;
1145
1146 /* Scan doesn't seem to work if disabled */
1147 enabled_save = zd->mac_enabled;
1148 zd1201_enable(zd);
1149
1150 zd->rxdatas = 0;
1151 err = zd1201_docmd(zd, ZD1201_CMDCODE_INQUIRE,
1152 ZD1201_INQ_SCANRESULTS, 0, 0);
1153 if (err)
1154 return err;
1155
1156 wait_event_interruptible(zd->rxdataq, zd->rxdatas);
1157 if (!zd->rxlen)
1158 return -EIO;
1159
1160 if (le16_to_cpu(*(__le16*)&zd->rxdata[2]) != ZD1201_INQ_SCANRESULTS)
1161 return -EIO;
1162
1163 for(i=8; i<zd->rxlen; i+=62) {
1164 iwe.cmd = SIOCGIWAP;
1165 iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
1166 memcpy(iwe.u.ap_addr.sa_data, zd->rxdata+i+6, 6);
1167 cev = iwe_stream_add_event(cev, end_buf, &iwe, IW_EV_ADDR_LEN);
1168
1169 iwe.cmd = SIOCGIWESSID;
1170 iwe.u.data.length = zd->rxdata[i+16];
1171 iwe.u.data.flags = 1;
1172 cev = iwe_stream_add_point(cev, end_buf, &iwe, zd->rxdata+i+18);
1173
1174 iwe.cmd = SIOCGIWMODE;
1175 if (zd->rxdata[i+14]&0x01)
1176 iwe.u.mode = IW_MODE_MASTER;
1177 else
1178 iwe.u.mode = IW_MODE_ADHOC;
1179 cev = iwe_stream_add_event(cev, end_buf, &iwe, IW_EV_UINT_LEN);
1180
1181 iwe.cmd = SIOCGIWFREQ;
1182 iwe.u.freq.m = zd->rxdata[i+0];
1183 iwe.u.freq.e = 0;
1184 cev = iwe_stream_add_event(cev, end_buf, &iwe, IW_EV_FREQ_LEN);
1185
1186 iwe.cmd = SIOCGIWRATE;
1187 iwe.u.bitrate.fixed = 0;
1188 iwe.u.bitrate.disabled = 0;
1189 for (j=0; j<10; j++) if (zd->rxdata[i+50+j]) {
1190 iwe.u.bitrate.value = (zd->rxdata[i+50+j]&0x7f)*500000;
1191 cev=iwe_stream_add_event(cev, end_buf, &iwe,
1192 IW_EV_PARAM_LEN);
1193 }
1194
1195 iwe.cmd = SIOCGIWENCODE;
1196 iwe.u.data.length = 0;
1197 if (zd->rxdata[i+14]&0x10)
1198 iwe.u.data.flags = IW_ENCODE_ENABLED;
1199 else
1200 iwe.u.data.flags = IW_ENCODE_DISABLED;
1201 cev = iwe_stream_add_point(cev, end_buf, &iwe, NULL);
1202
1203 iwe.cmd = IWEVQUAL;
1204 iwe.u.qual.qual = zd->rxdata[i+4];
1205 iwe.u.qual.noise= zd->rxdata[i+2]/10-100;
1206 iwe.u.qual.level = (256+zd->rxdata[i+4]*100)/255-100;
1207 iwe.u.qual.updated = 7;
1208 cev = iwe_stream_add_event(cev, end_buf, &iwe, IW_EV_QUAL_LEN);
1209 }
1210
1211 if (!enabled_save)
1212 zd1201_disable(zd);
1213
1214 srq->length = cev - extra;
1215 srq->flags = 0;
1216
1217 return 0;
1218 }
1219
1220 static int zd1201_set_essid(struct net_device *dev,
1221 struct iw_request_info *info, struct iw_point *data, char *essid)
1222 {
1223 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1224
1225 if (data->length > IW_ESSID_MAX_SIZE)
1226 return -EINVAL;
1227 if (data->length < 1)
1228 data->length = 1;
1229 zd->essidlen = data->length-1;
1230 memset(zd->essid, 0, IW_ESSID_MAX_SIZE+1);
1231 memcpy(zd->essid, essid, data->length);
1232 return zd1201_join(zd, zd->essid, zd->essidlen);
1233 }
1234
1235 static int zd1201_get_essid(struct net_device *dev,
1236 struct iw_request_info *info, struct iw_point *data, char *essid)
1237 {
1238 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1239
1240 memcpy(essid, zd->essid, zd->essidlen);
1241 data->flags = 1;
1242 data->length = zd->essidlen;
1243
1244 return 0;
1245 }
1246
1247 static int zd1201_get_nick(struct net_device *dev, struct iw_request_info *info,
1248 struct iw_point *data, char *nick)
1249 {
1250 strcpy(nick, "zd1201");
1251 data->flags = 1;
1252 data->length = strlen(nick);
1253 return 0;
1254 }
1255
1256 static int zd1201_set_rate(struct net_device *dev,
1257 struct iw_request_info *info, struct iw_param *rrq, char *extra)
1258 {
1259 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1260 short rate;
1261 int err;
1262
1263 switch (rrq->value) {
1264 case 1000000:
1265 rate = ZD1201_RATEB1;
1266 break;
1267 case 2000000:
1268 rate = ZD1201_RATEB2;
1269 break;
1270 case 5500000:
1271 rate = ZD1201_RATEB5;
1272 break;
1273 case 11000000:
1274 default:
1275 rate = ZD1201_RATEB11;
1276 break;
1277 }
1278 if (!rrq->fixed) { /* Also enable all lower bitrates */
1279 rate |= rate-1;
1280 }
1281
1282 err = zd1201_setconfig16(zd, ZD1201_RID_TXRATECNTL, rate);
1283 if (err)
1284 return err;
1285
1286 return zd1201_mac_reset(zd);
1287 }
1288
1289 static int zd1201_get_rate(struct net_device *dev,
1290 struct iw_request_info *info, struct iw_param *rrq, char *extra)
1291 {
1292 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1293 short rate;
1294 int err;
1295
1296 err = zd1201_getconfig16(zd, ZD1201_RID_CURRENTTXRATE, &rate);
1297 if (err)
1298 return err;
1299
1300 switch(rate) {
1301 case 1:
1302 rrq->value = 1000000;
1303 break;
1304 case 2:
1305 rrq->value = 2000000;
1306 break;
1307 case 5:
1308 rrq->value = 5500000;
1309 break;
1310 case 11:
1311 rrq->value = 11000000;
1312 break;
1313 default:
1314 rrq->value = 0;
1315 }
1316 rrq->fixed = 0;
1317 rrq->disabled = 0;
1318
1319 return 0;
1320 }
1321
1322 static int zd1201_set_rts(struct net_device *dev, struct iw_request_info *info,
1323 struct iw_param *rts, char *extra)
1324 {
1325 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1326 int err;
1327 short val = rts->value;
1328
1329 if (rts->disabled || !rts->fixed)
1330 val = ZD1201_RTSMAX;
1331 if (val > ZD1201_RTSMAX)
1332 return -EINVAL;
1333 if (val < 0)
1334 return -EINVAL;
1335
1336 err = zd1201_setconfig16(zd, ZD1201_RID_CNFRTSTHRESHOLD, val);
1337 if (err)
1338 return err;
1339 return zd1201_mac_reset(zd);
1340 }
1341
1342 static int zd1201_get_rts(struct net_device *dev, struct iw_request_info *info,
1343 struct iw_param *rts, char *extra)
1344 {
1345 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1346 short rtst;
1347 int err;
1348
1349 err = zd1201_getconfig16(zd, ZD1201_RID_CNFRTSTHRESHOLD, &rtst);
1350 if (err)
1351 return err;
1352 rts->value = rtst;
1353 rts->disabled = (rts->value == ZD1201_RTSMAX);
1354 rts->fixed = 1;
1355
1356 return 0;
1357 }
1358
1359 static int zd1201_set_frag(struct net_device *dev, struct iw_request_info *info,
1360 struct iw_param *frag, char *extra)
1361 {
1362 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1363 int err;
1364 short val = frag->value;
1365
1366 if (frag->disabled || !frag->fixed)
1367 val = ZD1201_FRAGMAX;
1368 if (val > ZD1201_FRAGMAX)
1369 return -EINVAL;
1370 if (val < ZD1201_FRAGMIN)
1371 return -EINVAL;
1372 if (val & 1)
1373 return -EINVAL;
1374 err = zd1201_setconfig16(zd, ZD1201_RID_CNFFRAGTHRESHOLD, val);
1375 if (err)
1376 return err;
1377 return zd1201_mac_reset(zd);
1378 }
1379
1380 static int zd1201_get_frag(struct net_device *dev, struct iw_request_info *info,
1381 struct iw_param *frag, char *extra)
1382 {
1383 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1384 short fragt;
1385 int err;
1386
1387 err = zd1201_getconfig16(zd, ZD1201_RID_CNFFRAGTHRESHOLD, &fragt);
1388 if (err)
1389 return err;
1390 frag->value = fragt;
1391 frag->disabled = (frag->value == ZD1201_FRAGMAX);
1392 frag->fixed = 1;
1393
1394 return 0;
1395 }
1396
1397 static int zd1201_set_retry(struct net_device *dev,
1398 struct iw_request_info *info, struct iw_param *rrq, char *extra)
1399 {
1400 return 0;
1401 }
1402
1403 static int zd1201_get_retry(struct net_device *dev,
1404 struct iw_request_info *info, struct iw_param *rrq, char *extra)
1405 {
1406 return 0;
1407 }
1408
1409 static int zd1201_set_encode(struct net_device *dev,
1410 struct iw_request_info *info, struct iw_point *erq, char *key)
1411 {
1412 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1413 short i;
1414 int err, rid;
1415
1416 if (erq->length > ZD1201_MAXKEYLEN)
1417 return -EINVAL;
1418
1419 i = (erq->flags & IW_ENCODE_INDEX)-1;
1420 if (i == -1) {
1421 err = zd1201_getconfig16(zd,ZD1201_RID_CNFDEFAULTKEYID,&i);
1422 if (err)
1423 return err;
1424 } else {
1425 err = zd1201_setconfig16(zd, ZD1201_RID_CNFDEFAULTKEYID, i);
1426 if (err)
1427 return err;
1428 }
1429
1430 if (i < 0 || i >= ZD1201_NUMKEYS)
1431 return -EINVAL;
1432
1433 rid = ZD1201_RID_CNFDEFAULTKEY0 + i;
1434 err = zd1201_setconfig(zd, rid, key, erq->length, 1);
1435 if (err)
1436 return err;
1437 zd->encode_keylen[i] = erq->length;
1438 memcpy(zd->encode_keys[i], key, erq->length);
1439
1440 i=0;
1441 if (!(erq->flags & IW_ENCODE_DISABLED & IW_ENCODE_MODE)) {
1442 i |= 0x01;
1443 zd->encode_enabled = 1;
1444 } else
1445 zd->encode_enabled = 0;
1446 if (erq->flags & IW_ENCODE_RESTRICTED & IW_ENCODE_MODE) {
1447 i |= 0x02;
1448 zd->encode_restricted = 1;
1449 } else
1450 zd->encode_restricted = 0;
1451 err = zd1201_setconfig16(zd, ZD1201_RID_CNFWEBFLAGS, i);
1452 if (err)
1453 return err;
1454
1455 if (zd->encode_enabled)
1456 i = ZD1201_CNFAUTHENTICATION_SHAREDKEY;
1457 else
1458 i = ZD1201_CNFAUTHENTICATION_OPENSYSTEM;
1459 err = zd1201_setconfig16(zd, ZD1201_RID_CNFAUTHENTICATION, i);
1460 if (err)
1461 return err;
1462
1463 return zd1201_mac_reset(zd);
1464 }
1465
1466 static int zd1201_get_encode(struct net_device *dev,
1467 struct iw_request_info *info, struct iw_point *erq, char *key)
1468 {
1469 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1470 short i;
1471 int err;
1472
1473 if (zd->encode_enabled)
1474 erq->flags = IW_ENCODE_ENABLED;
1475 else
1476 erq->flags = IW_ENCODE_DISABLED;
1477 if (zd->encode_restricted)
1478 erq->flags |= IW_ENCODE_RESTRICTED;
1479 else
1480 erq->flags |= IW_ENCODE_OPEN;
1481
1482 i = (erq->flags & IW_ENCODE_INDEX) -1;
1483 if (i == -1) {
1484 err = zd1201_getconfig16(zd, ZD1201_RID_CNFDEFAULTKEYID, &i);
1485 if (err)
1486 return err;
1487 }
1488 if (i<0 || i>= ZD1201_NUMKEYS)
1489 return -EINVAL;
1490
1491 erq->flags |= i+1;
1492
1493 erq->length = zd->encode_keylen[i];
1494 memcpy(key, zd->encode_keys[i], erq->length);
1495
1496 return 0;
1497 }
1498
1499 static int zd1201_set_power(struct net_device *dev,
1500 struct iw_request_info *info, struct iw_param *vwrq, char *extra)
1501 {
1502 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1503 short enabled, duration, level;
1504 int err;
1505
1506 enabled = vwrq->disabled ? 0 : 1;
1507 if (enabled) {
1508 if (vwrq->flags & IW_POWER_PERIOD) {
1509 duration = vwrq->value;
1510 err = zd1201_setconfig16(zd,
1511 ZD1201_RID_CNFMAXSLEEPDURATION, duration);
1512 if (err)
1513 return err;
1514 goto out;
1515 }
1516 if (vwrq->flags & IW_POWER_TIMEOUT) {
1517 err = zd1201_getconfig16(zd,
1518 ZD1201_RID_CNFMAXSLEEPDURATION, &duration);
1519 if (err)
1520 return err;
1521 level = vwrq->value * 4 / duration;
1522 if (level > 4)
1523 level = 4;
1524 if (level < 0)
1525 level = 0;
1526 err = zd1201_setconfig16(zd, ZD1201_RID_CNFPMEPS,
1527 level);
1528 if (err)
1529 return err;
1530 goto out;
1531 }
1532 return -EINVAL;
1533 }
1534 out:
1535 err = zd1201_setconfig16(zd, ZD1201_RID_CNFPMENABLED, enabled);
1536 if (err)
1537 return err;
1538
1539 return 0;
1540 }
1541
1542 static int zd1201_get_power(struct net_device *dev,
1543 struct iw_request_info *info, struct iw_param *vwrq, char *extra)
1544 {
1545 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1546 short enabled, level, duration;
1547 int err;
1548
1549 err = zd1201_getconfig16(zd, ZD1201_RID_CNFPMENABLED, &enabled);
1550 if (err)
1551 return err;
1552 err = zd1201_getconfig16(zd, ZD1201_RID_CNFPMEPS, &level);
1553 if (err)
1554 return err;
1555 err = zd1201_getconfig16(zd, ZD1201_RID_CNFMAXSLEEPDURATION, &duration);
1556 if (err)
1557 return err;
1558 vwrq->disabled = enabled ? 0 : 1;
1559 if (vwrq->flags & IW_POWER_TYPE) {
1560 if (vwrq->flags & IW_POWER_PERIOD) {
1561 vwrq->value = duration;
1562 vwrq->flags = IW_POWER_PERIOD;
1563 } else {
1564 vwrq->value = duration * level / 4;
1565 vwrq->flags = IW_POWER_TIMEOUT;
1566 }
1567 }
1568 if (vwrq->flags & IW_POWER_MODE) {
1569 if (enabled && level)
1570 vwrq->flags = IW_POWER_UNICAST_R;
1571 else
1572 vwrq->flags = IW_POWER_ALL_R;
1573 }
1574
1575 return 0;
1576 }
1577
1578
1579 static const iw_handler zd1201_iw_handler[] =
1580 {
1581 (iw_handler) zd1201_config_commit, /* SIOCSIWCOMMIT */
1582 (iw_handler) zd1201_get_name, /* SIOCGIWNAME */
1583 (iw_handler) NULL, /* SIOCSIWNWID */
1584 (iw_handler) NULL, /* SIOCGIWNWID */
1585 (iw_handler) zd1201_set_freq, /* SIOCSIWFREQ */
1586 (iw_handler) zd1201_get_freq, /* SIOCGIWFREQ */
1587 (iw_handler) zd1201_set_mode, /* SIOCSIWMODE */
1588 (iw_handler) zd1201_get_mode, /* SIOCGIWMODE */
1589 (iw_handler) NULL, /* SIOCSIWSENS */
1590 (iw_handler) NULL, /* SIOCGIWSENS */
1591 (iw_handler) NULL, /* SIOCSIWRANGE */
1592 (iw_handler) zd1201_get_range, /* SIOCGIWRANGE */
1593 (iw_handler) NULL, /* SIOCSIWPRIV */
1594 (iw_handler) NULL, /* SIOCGIWPRIV */
1595 (iw_handler) NULL, /* SIOCSIWSTATS */
1596 (iw_handler) NULL, /* SIOCGIWSTATS */
1597 (iw_handler) NULL, /* SIOCSIWSPY */
1598 (iw_handler) NULL, /* SIOCGIWSPY */
1599 (iw_handler) NULL, /* -- hole -- */
1600 (iw_handler) NULL, /* -- hole -- */
1601 (iw_handler) NULL/*zd1201_set_wap*/, /* SIOCSIWAP */
1602 (iw_handler) zd1201_get_wap, /* SIOCGIWAP */
1603 (iw_handler) NULL, /* -- hole -- */
1604 (iw_handler) NULL, /* SIOCGIWAPLIST */
1605 (iw_handler) zd1201_set_scan, /* SIOCSIWSCAN */
1606 (iw_handler) zd1201_get_scan, /* SIOCGIWSCAN */
1607 (iw_handler) zd1201_set_essid, /* SIOCSIWESSID */
1608 (iw_handler) zd1201_get_essid, /* SIOCGIWESSID */
1609 (iw_handler) NULL, /* SIOCSIWNICKN */
1610 (iw_handler) zd1201_get_nick, /* SIOCGIWNICKN */
1611 (iw_handler) NULL, /* -- hole -- */
1612 (iw_handler) NULL, /* -- hole -- */
1613 (iw_handler) zd1201_set_rate, /* SIOCSIWRATE */
1614 (iw_handler) zd1201_get_rate, /* SIOCGIWRATE */
1615 (iw_handler) zd1201_set_rts, /* SIOCSIWRTS */
1616 (iw_handler) zd1201_get_rts, /* SIOCGIWRTS */
1617 (iw_handler) zd1201_set_frag, /* SIOCSIWFRAG */
1618 (iw_handler) zd1201_get_frag, /* SIOCGIWFRAG */
1619 (iw_handler) NULL, /* SIOCSIWTXPOW */
1620 (iw_handler) NULL, /* SIOCGIWTXPOW */
1621 (iw_handler) zd1201_set_retry, /* SIOCSIWRETRY */
1622 (iw_handler) zd1201_get_retry, /* SIOCGIWRETRY */
1623 (iw_handler) zd1201_set_encode, /* SIOCSIWENCODE */
1624 (iw_handler) zd1201_get_encode, /* SIOCGIWENCODE */
1625 (iw_handler) zd1201_set_power, /* SIOCSIWPOWER */
1626 (iw_handler) zd1201_get_power, /* SIOCGIWPOWER */
1627 };
1628
1629 static int zd1201_set_hostauth(struct net_device *dev,
1630 struct iw_request_info *info, struct iw_param *rrq, char *extra)
1631 {
1632 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1633 int err;
1634
1635 if (!zd->ap)
1636 return -EOPNOTSUPP;
1637
1638 err = zd1201_setconfig16(zd, ZD1201_RID_CNFHOSTAUTH, rrq->value);
1639 if (err)
1640 return err;
1641 return 0;
1642 }
1643
1644 static int zd1201_get_hostauth(struct net_device *dev,
1645 struct iw_request_info *info, struct iw_param *rrq, char *extra)
1646 {
1647 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1648 short hostauth;
1649 int err;
1650
1651 if (!zd->ap)
1652 return -EOPNOTSUPP;
1653
1654 err = zd1201_getconfig16(zd, ZD1201_RID_CNFHOSTAUTH, &hostauth);
1655 if (err)
1656 return err;
1657 rrq->value = hostauth;
1658 rrq->fixed = 1;
1659
1660 return 0;
1661 }
1662
1663 static int zd1201_auth_sta(struct net_device *dev,
1664 struct iw_request_info *info, struct sockaddr *sta, char *extra)
1665 {
1666 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1667 unsigned char buffer[10];
1668
1669 if (!zd->ap)
1670 return -EOPNOTSUPP;
1671
1672 memcpy(buffer, sta->sa_data, ETH_ALEN);
1673 *(short*)(buffer+6) = 0; /* 0==success, 1==failure */
1674 *(short*)(buffer+8) = 0;
1675
1676 return zd1201_setconfig(zd, ZD1201_RID_AUTHENTICATESTA, buffer, 10, 1);
1677 }
1678
1679 static int zd1201_set_maxassoc(struct net_device *dev,
1680 struct iw_request_info *info, struct iw_param *rrq, char *extra)
1681 {
1682 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1683 int err;
1684
1685 if (!zd->ap)
1686 return -EOPNOTSUPP;
1687
1688 err = zd1201_setconfig16(zd, ZD1201_RID_CNFMAXASSOCSTATIONS, rrq->value);
1689 if (err)
1690 return err;
1691 return 0;
1692 }
1693
1694 static int zd1201_get_maxassoc(struct net_device *dev,
1695 struct iw_request_info *info, struct iw_param *rrq, char *extra)
1696 {
1697 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1698 short maxassoc;
1699 int err;
1700
1701 if (!zd->ap)
1702 return -EOPNOTSUPP;
1703
1704 err = zd1201_getconfig16(zd, ZD1201_RID_CNFMAXASSOCSTATIONS, &maxassoc);
1705 if (err)
1706 return err;
1707 rrq->value = maxassoc;
1708 rrq->fixed = 1;
1709
1710 return 0;
1711 }
1712
1713 static const iw_handler zd1201_private_handler[] = {
1714 (iw_handler) zd1201_set_hostauth, /* ZD1201SIWHOSTAUTH */
1715 (iw_handler) zd1201_get_hostauth, /* ZD1201GIWHOSTAUTH */
1716 (iw_handler) zd1201_auth_sta, /* ZD1201SIWAUTHSTA */
1717 (iw_handler) NULL, /* nothing to get */
1718 (iw_handler) zd1201_set_maxassoc, /* ZD1201SIMAXASSOC */
1719 (iw_handler) zd1201_get_maxassoc, /* ZD1201GIMAXASSOC */
1720 };
1721
1722 static const struct iw_priv_args zd1201_private_args[] = {
1723 { ZD1201SIWHOSTAUTH, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
1724 IW_PRIV_TYPE_NONE, "sethostauth" },
1725 { ZD1201GIWHOSTAUTH, IW_PRIV_TYPE_NONE,
1726 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "gethostauth" },
1727 { ZD1201SIWAUTHSTA, IW_PRIV_TYPE_ADDR | IW_PRIV_SIZE_FIXED | 1,
1728 IW_PRIV_TYPE_NONE, "authstation" },
1729 { ZD1201SIWMAXASSOC, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
1730 IW_PRIV_TYPE_NONE, "setmaxassoc" },
1731 { ZD1201GIWMAXASSOC, IW_PRIV_TYPE_NONE,
1732 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getmaxassoc" },
1733 };
1734
1735 static const struct iw_handler_def zd1201_iw_handlers = {
1736 .num_standard = sizeof(zd1201_iw_handler)/sizeof(iw_handler),
1737 .num_private = sizeof(zd1201_private_handler)/sizeof(iw_handler),
1738 .num_private_args = sizeof(zd1201_private_args)/sizeof(struct iw_priv_args),
1739 .standard = (iw_handler *)zd1201_iw_handler,
1740 .private = (iw_handler *)zd1201_private_handler,
1741 .private_args = (struct iw_priv_args *) zd1201_private_args,
1742 };
1743
1744 static int zd1201_probe(struct usb_interface *interface,
1745 const struct usb_device_id *id)
1746 {
1747 struct zd1201 *zd;
1748 struct usb_device *usb;
1749 int i, err;
1750 short porttype;
1751 char buf[IW_ESSID_MAX_SIZE+2];
1752
1753 usb = interface_to_usbdev(interface);
1754
1755 zd = kmalloc(sizeof(struct zd1201), GFP_KERNEL);
1756 if (!zd) {
1757 return -ENOMEM;
1758 }
1759 memset(zd, 0, sizeof(struct zd1201));
1760 zd->ap = ap;
1761 zd->usb = usb;
1762 zd->removed = 0;
1763 init_waitqueue_head(&zd->rxdataq);
1764 INIT_HLIST_HEAD(&zd->fraglist);
1765
1766 err = zd1201_fw_upload(usb, zd->ap);
1767 if (err) {
1768 dev_err(&usb->dev, "zd1201 firmware upload failed: %d\n", err);
1769 goto err_zd;
1770 }
1771
1772 zd->endp_in = 1;
1773 zd->endp_out = 1;
1774 zd->endp_out2 = 2;
1775 zd->rx_urb = usb_alloc_urb(0, GFP_KERNEL);
1776 zd->tx_urb = usb_alloc_urb(0, GFP_KERNEL);
1777 if (!zd->rx_urb || !zd->tx_urb)
1778 goto err_zd;
1779
1780 for(i = 0; i<100; i++)
1781 udelay(1000);
1782
1783 err = zd1201_drvr_start(zd);
1784 if (err)
1785 goto err_zd;
1786
1787 err = zd1201_setconfig16(zd, ZD1201_RID_CNFMAXDATALEN, 2312);
1788 if (err)
1789 goto err_start;
1790
1791 err = zd1201_setconfig16(zd, ZD1201_RID_TXRATECNTL,
1792 ZD1201_RATEB1 | ZD1201_RATEB2 | ZD1201_RATEB5 | ZD1201_RATEB11);
1793 if (err)
1794 goto err_start;
1795
1796 zd->dev = alloc_etherdev(0);
1797 if (!zd->dev)
1798 goto err_start;
1799
1800 zd->dev->priv = zd;
1801 zd->dev->open = zd1201_net_open;
1802 zd->dev->stop = zd1201_net_stop;
1803 zd->dev->get_stats = zd1201_get_stats;
1804 zd->dev->get_wireless_stats = zd1201_get_wireless_stats;
1805 zd->dev->wireless_handlers =
1806 (struct iw_handler_def *)&zd1201_iw_handlers;
1807 zd->dev->hard_start_xmit = zd1201_hard_start_xmit;
1808 zd->dev->watchdog_timeo = ZD1201_TX_TIMEOUT;
1809 zd->dev->tx_timeout = zd1201_tx_timeout;
1810 zd->dev->set_multicast_list = zd1201_set_multicast;
1811 zd->dev->set_mac_address = zd1201_set_mac_address;
1812 strcpy(zd->dev->name, "wlan%d");
1813
1814 err = zd1201_getconfig(zd, ZD1201_RID_CNFOWNMACADDR,
1815 zd->dev->dev_addr, zd->dev->addr_len);
1816 if (err)
1817 goto err_net;
1818
1819 /* Set wildcard essid to match zd->essid */
1820 *(__le16 *)buf = cpu_to_le16(0);
1821 err = zd1201_setconfig(zd, ZD1201_RID_CNFDESIREDSSID, buf,
1822 IW_ESSID_MAX_SIZE+2, 1);
1823 if (err)
1824 goto err_net;
1825
1826 if (zd->ap)
1827 porttype = ZD1201_PORTTYPE_AP;
1828 else
1829 porttype = ZD1201_PORTTYPE_BSS;
1830 err = zd1201_setconfig16(zd, ZD1201_RID_CNFPORTTYPE, porttype);
1831 if (err)
1832 goto err_net;
1833
1834 err = register_netdev(zd->dev);
1835 if (err)
1836 goto err_net;
1837 dev_info(&usb->dev, "%s: ZD1201 USB Wireless interface\n",
1838 zd->dev->name);
1839
1840 usb_set_intfdata(interface, zd);
1841 return 0;
1842
1843 err_net:
1844 free_netdev(zd->dev);
1845 err_start:
1846 /* Leave the device in reset state */
1847 zd1201_docmd(zd, ZD1201_CMDCODE_INIT, 0, 0, 0);
1848 err_zd:
1849 if (zd->tx_urb)
1850 usb_free_urb(zd->tx_urb);
1851 if (zd->rx_urb)
1852 usb_free_urb(zd->rx_urb);
1853 kfree(zd);
1854 return err;
1855 }
1856
1857 static void zd1201_disconnect(struct usb_interface *interface)
1858 {
1859 struct zd1201 *zd=(struct zd1201 *)usb_get_intfdata(interface);
1860 struct hlist_node *node, *node2;
1861 struct zd1201_frag *frag;
1862
1863 if (!zd)
1864 return;
1865 usb_set_intfdata(interface, NULL);
1866 if (zd->dev) {
1867 unregister_netdev(zd->dev);
1868 free_netdev(zd->dev);
1869 }
1870
1871 hlist_for_each_entry_safe(frag, node, node2, &zd->fraglist, fnode) {
1872 hlist_del_init(&frag->fnode);
1873 kfree_skb(frag->skb);
1874 kfree(frag);
1875 }
1876
1877 if (zd->tx_urb) {
1878 usb_kill_urb(zd->tx_urb);
1879 usb_free_urb(zd->tx_urb);
1880 }
1881 if (zd->rx_urb) {
1882 usb_kill_urb(zd->rx_urb);
1883 usb_free_urb(zd->rx_urb);
1884 }
1885 kfree(zd);
1886 }
1887
1888 #ifdef CONFIG_PM
1889
1890 static int zd1201_suspend(struct usb_interface *interface,
1891 pm_message_t message)
1892 {
1893 struct zd1201 *zd = usb_get_intfdata(interface);
1894
1895 netif_device_detach(zd->dev);
1896
1897 zd->was_enabled = zd->mac_enabled;
1898
1899 if (zd->was_enabled)
1900 return zd1201_disable(zd);
1901 else
1902 return 0;
1903 }
1904
1905 static int zd1201_resume(struct usb_interface *interface)
1906 {
1907 struct zd1201 *zd = usb_get_intfdata(interface);
1908
1909 if (!zd || !zd->dev)
1910 return -ENODEV;
1911
1912 netif_device_attach(zd->dev);
1913
1914 if (zd->was_enabled)
1915 return zd1201_enable(zd);
1916 else
1917 return 0;
1918 }
1919
1920 #else
1921
1922 #define zd1201_suspend NULL
1923 #define zd1201_resume NULL
1924
1925 #endif
1926
1927 static struct usb_driver zd1201_usb = {
1928 .owner = THIS_MODULE,
1929 .name = "zd1201",
1930 .probe = zd1201_probe,
1931 .disconnect = zd1201_disconnect,
1932 .id_table = zd1201_table,
1933 .suspend = zd1201_suspend,
1934 .resume = zd1201_resume,
1935 };
1936
1937 static int __init zd1201_init(void)
1938 {
1939 return usb_register(&zd1201_usb);
1940 }
1941
1942 static void __exit zd1201_cleanup(void)
1943 {
1944 usb_deregister(&zd1201_usb);
1945 }
1946
1947 module_init(zd1201_init);
1948 module_exit(zd1201_cleanup);
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