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added 2.6.29.6 aldebaran kernel
[nao-ulib.git] / kernel / 2.6.29.6-aldebaran-rt / drivers / net / wireless / zd1201.c
blob9fb90b3e37f65dbf92506897ec3a384e534f0fc6
1 /*
2 * Driver for ZyDAS zd1201 based wireless USB devices.
3 *
4 * Copyright (c) 2004, 2005 Jeroen Vreeken (pe1rxq@amsat.org)
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * version 2 as published by the Free Software Foundation.
9 *
10 * Parts of this driver have been derived from a wlan-ng version
11 * modified by ZyDAS. They also made documentation available, thanks!
12 * Copyright (C) 1999 AbsoluteValue Systems, Inc. All Rights Reserved.
13 */
14
15 #include <linux/module.h>
16 #include <linux/usb.h>
17 #include <linux/netdevice.h>
18 #include <linux/etherdevice.h>
19 #include <linux/wireless.h>
20 #include <linux/ieee80211.h>
21 #include <net/iw_handler.h>
22 #include <linux/string.h>
23 #include <linux/if_arp.h>
24 #include <linux/firmware.h>
25 #include "zd1201.h"
26
27 static struct usb_device_id zd1201_table[] = {
28 {USB_DEVICE(0x0586, 0x3400)}, /* Peabird Wireless USB Adapter */
29 {USB_DEVICE(0x0ace, 0x1201)}, /* ZyDAS ZD1201 Wireless USB Adapter */
30 {USB_DEVICE(0x050d, 0x6051)}, /* Belkin F5D6051 usb adapter */
31 {USB_DEVICE(0x0db0, 0x6823)}, /* MSI UB11B usb adapter */
32 {USB_DEVICE(0x1044, 0x8005)}, /* GIGABYTE GN-WLBZ201 usb adapter */
33 {}
34 };
35
36 static int ap; /* Are we an AP or a normal station? */
37
38 #define ZD1201_VERSION "0.15"
39
40 MODULE_AUTHOR("Jeroen Vreeken <pe1rxq@amsat.org>");
41 MODULE_DESCRIPTION("Driver for ZyDAS ZD1201 based USB Wireless adapters");
42 MODULE_VERSION(ZD1201_VERSION);
43 MODULE_LICENSE("GPL");
44 module_param(ap, int, 0);
45 MODULE_PARM_DESC(ap, "If non-zero Access Point firmware will be loaded");
46 MODULE_DEVICE_TABLE(usb, zd1201_table);
47
48
49 static int zd1201_fw_upload(struct usb_device *dev, int apfw)
50 {
51 const struct firmware *fw_entry;
52 const char *data;
53 unsigned long len;
54 int err;
55 unsigned char ret;
56 char *buf;
57 char *fwfile;
58
59 if (apfw)
60 fwfile = "zd1201-ap.fw";
61 else
62 fwfile = "zd1201.fw";
63
64 err = request_firmware(&fw_entry, fwfile, &dev->dev);
65 if (err) {
66 dev_err(&dev->dev, "Failed to load %s firmware file!\n", fwfile);
67 dev_err(&dev->dev, "Make sure the hotplug firmware loader is installed.\n");
68 dev_err(&dev->dev, "Goto http://linux-lc100020.sourceforge.net for more info.\n");
69 return err;
70 }
71
72 data = fw_entry->data;
73 len = fw_entry->size;
74
75 buf = kmalloc(1024, GFP_ATOMIC);
76 if (!buf)
77 goto exit;
78
79 while (len > 0) {
80 int translen = (len > 1024) ? 1024 : len;
81 memcpy(buf, data, translen);
82
83 err = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), 0,
84 USB_DIR_OUT | 0x40, 0, 0, buf, translen,
85 ZD1201_FW_TIMEOUT);
86 if (err < 0)
87 goto exit;
88
89 len -= translen;
90 data += translen;
91 }
92
93 err = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), 0x2,
94 USB_DIR_OUT | 0x40, 0, 0, NULL, 0, ZD1201_FW_TIMEOUT);
95 if (err < 0)
96 goto exit;
97
98 err = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), 0x4,
99 USB_DIR_IN | 0x40, 0,0, &ret, sizeof(ret), ZD1201_FW_TIMEOUT);
100 if (err < 0)
101 goto exit;
102
103 if (ret & 0x80) {
104 err = -EIO;
105 goto exit;
106 }
107
108 err = 0;
109 exit:
110 kfree(buf);
111 release_firmware(fw_entry);
112 return err;
113 }
114
115 static void zd1201_usbfree(struct urb *urb)
116 {
117 struct zd1201 *zd = urb->context;
118
119 switch(urb->status) {
120 case -EILSEQ:
121 case -ENODEV:
122 case -ETIME:
123 case -ENOENT:
124 case -EPIPE:
125 case -EOVERFLOW:
126 case -ESHUTDOWN:
127 dev_warn(&zd->usb->dev, "%s: urb failed: %d\n",
128 zd->dev->name, urb->status);
129 }
130
131 kfree(urb->transfer_buffer);
132 usb_free_urb(urb);
133 return;
134 }
135
136 /* cmdreq message:
137 u32 type
138 u16 cmd
139 u16 parm0
140 u16 parm1
141 u16 parm2
142 u8 pad[4]
143
144 total: 4 + 2 + 2 + 2 + 2 + 4 = 16
145 */
146 static int zd1201_docmd(struct zd1201 *zd, int cmd, int parm0,
147 int parm1, int parm2)
148 {
149 unsigned char *command;
150 int ret;
151 struct urb *urb;
152
153 command = kmalloc(16, GFP_ATOMIC);
154 if (!command)
155 return -ENOMEM;
156
157 *((__le32*)command) = cpu_to_le32(ZD1201_USB_CMDREQ);
158 *((__le16*)&command[4]) = cpu_to_le16(cmd);
159 *((__le16*)&command[6]) = cpu_to_le16(parm0);
160 *((__le16*)&command[8]) = cpu_to_le16(parm1);
161 *((__le16*)&command[10])= cpu_to_le16(parm2);
162
163 urb = usb_alloc_urb(0, GFP_ATOMIC);
164 if (!urb) {
165 kfree(command);
166 return -ENOMEM;
167 }
168 usb_fill_bulk_urb(urb, zd->usb, usb_sndbulkpipe(zd->usb, zd->endp_out2),
169 command, 16, zd1201_usbfree, zd);
170 ret = usb_submit_urb(urb, GFP_ATOMIC);
171 if (ret) {
172 kfree(command);
173 usb_free_urb(urb);
174 }
175
176 return ret;
177 }
178
179 /* Callback after sending out a packet */
180 static void zd1201_usbtx(struct urb *urb)
181 {
182 struct zd1201 *zd = urb->context;
183 netif_wake_queue(zd->dev);
184 return;
185 }
186
187 /* Incoming data */
188 static void zd1201_usbrx(struct urb *urb)
189 {
190 struct zd1201 *zd = urb->context;
191 int free = 0;
192 unsigned char *data = urb->transfer_buffer;
193 struct sk_buff *skb;
194 unsigned char type;
195
196 if (!zd)
197 return;
198
199 switch(urb->status) {
200 case -EILSEQ:
201 case -ENODEV:
202 case -ETIME:
203 case -ENOENT:
204 case -EPIPE:
205 case -EOVERFLOW:
206 case -ESHUTDOWN:
207 dev_warn(&zd->usb->dev, "%s: rx urb failed: %d\n",
208 zd->dev->name, urb->status);
209 free = 1;
210 goto exit;
211 }
212
213 if (urb->status != 0 || urb->actual_length == 0)
214 goto resubmit;
215
216 type = data[0];
217 if (type == ZD1201_PACKET_EVENTSTAT || type == ZD1201_PACKET_RESOURCE) {
218 memcpy(zd->rxdata, data, urb->actual_length);
219 zd->rxlen = urb->actual_length;
220 zd->rxdatas = 1;
221 wake_up(&zd->rxdataq);
222 }
223 /* Info frame */
224 if (type == ZD1201_PACKET_INQUIRE) {
225 int i = 0;
226 unsigned short infotype, framelen, copylen;
227 framelen = le16_to_cpu(*(__le16*)&data[4]);
228 infotype = le16_to_cpu(*(__le16*)&data[6]);
229
230 if (infotype == ZD1201_INF_LINKSTATUS) {
231 short linkstatus;
232
233 linkstatus = le16_to_cpu(*(__le16*)&data[8]);
234 switch(linkstatus) {
235 case 1:
236 netif_carrier_on(zd->dev);
237 break;
238 case 2:
239 netif_carrier_off(zd->dev);
240 break;
241 case 3:
242 netif_carrier_off(zd->dev);
243 break;
244 case 4:
245 netif_carrier_on(zd->dev);
246 break;
247 default:
248 netif_carrier_off(zd->dev);
249 }
250 goto resubmit;
251 }
252 if (infotype == ZD1201_INF_ASSOCSTATUS) {
253 short status = le16_to_cpu(*(__le16*)(data+8));
254 int event;
255 union iwreq_data wrqu;
256
257 switch (status) {
258 case ZD1201_ASSOCSTATUS_STAASSOC:
259 case ZD1201_ASSOCSTATUS_REASSOC:
260 event = IWEVREGISTERED;
261 break;
262 case ZD1201_ASSOCSTATUS_DISASSOC:
263 case ZD1201_ASSOCSTATUS_ASSOCFAIL:
264 case ZD1201_ASSOCSTATUS_AUTHFAIL:
265 default:
266 event = IWEVEXPIRED;
267 }
268 memcpy(wrqu.addr.sa_data, data+10, ETH_ALEN);
269 wrqu.addr.sa_family = ARPHRD_ETHER;
270
271 /* Send event to user space */
272 wireless_send_event(zd->dev, event, &wrqu, NULL);
273
274 goto resubmit;
275 }
276 if (infotype == ZD1201_INF_AUTHREQ) {
277 union iwreq_data wrqu;
278
279 memcpy(wrqu.addr.sa_data, data+8, ETH_ALEN);
280 wrqu.addr.sa_family = ARPHRD_ETHER;
281 /* There isn't a event that trully fits this request.
282 We assume that userspace will be smart enough to
283 see a new station being expired and sends back a
284 authstation ioctl to authorize it. */
285 wireless_send_event(zd->dev, IWEVEXPIRED, &wrqu, NULL);
286 goto resubmit;
287 }
288 /* Other infotypes are handled outside this handler */
289 zd->rxlen = 0;
290 while (i < urb->actual_length) {
291 copylen = le16_to_cpu(*(__le16*)&data[i+2]);
292 /* Sanity check, sometimes we get junk */
293 if (copylen+zd->rxlen > sizeof(zd->rxdata))
294 break;
295 memcpy(zd->rxdata+zd->rxlen, data+i+4, copylen);
296 zd->rxlen += copylen;
297 i += 64;
298 }
299 if (i >= urb->actual_length) {
300 zd->rxdatas = 1;
301 wake_up(&zd->rxdataq);
302 }
303 goto resubmit;
304 }
305 /* Actual data */
306 if (data[urb->actual_length-1] == ZD1201_PACKET_RXDATA) {
307 int datalen = urb->actual_length-1;
308 unsigned short len, fc, seq;
309 struct hlist_node *node;
310
311 len = ntohs(*(__be16 *)&data[datalen-2]);
312 if (len>datalen)
313 len=datalen;
314 fc = le16_to_cpu(*(__le16 *)&data[datalen-16]);
315 seq = le16_to_cpu(*(__le16 *)&data[datalen-24]);
316
317 if (zd->monitor) {
318 if (datalen < 24)
319 goto resubmit;
320 if (!(skb = dev_alloc_skb(datalen+24)))
321 goto resubmit;
322
323 memcpy(skb_put(skb, 2), &data[datalen-16], 2);
324 memcpy(skb_put(skb, 2), &data[datalen-2], 2);
325 memcpy(skb_put(skb, 6), &data[datalen-14], 6);
326 memcpy(skb_put(skb, 6), &data[datalen-22], 6);
327 memcpy(skb_put(skb, 6), &data[datalen-8], 6);
328 memcpy(skb_put(skb, 2), &data[datalen-24], 2);
329 memcpy(skb_put(skb, len), data, len);
330 skb->protocol = eth_type_trans(skb, zd->dev);
331 zd->stats.rx_packets++;
332 zd->stats.rx_bytes += skb->len;
333 netif_rx(skb);
334 goto resubmit;
335 }
336
337 if ((seq & IEEE80211_SCTL_FRAG) ||
338 (fc & IEEE80211_FCTL_MOREFRAGS)) {
339 struct zd1201_frag *frag = NULL;
340 char *ptr;
341
342 if (datalen<14)
343 goto resubmit;
344 if ((seq & IEEE80211_SCTL_FRAG) == 0) {
345 frag = kmalloc(sizeof(*frag), GFP_ATOMIC);
346 if (!frag)
347 goto resubmit;
348 skb = dev_alloc_skb(IEEE80211_MAX_DATA_LEN +14+2);
349 if (!skb) {
350 kfree(frag);
351 goto resubmit;
352 }
353 frag->skb = skb;
354 frag->seq = seq & IEEE80211_SCTL_SEQ;
355 skb_reserve(skb, 2);
356 memcpy(skb_put(skb, 12), &data[datalen-14], 12);
357 memcpy(skb_put(skb, 2), &data[6], 2);
358 memcpy(skb_put(skb, len), data+8, len);
359 hlist_add_head(&frag->fnode, &zd->fraglist);
360 goto resubmit;
361 }
362 hlist_for_each_entry(frag, node, &zd->fraglist, fnode)
363 if (frag->seq == (seq&IEEE80211_SCTL_SEQ))
364 break;
365 if (!frag)
366 goto resubmit;
367 skb = frag->skb;
368 ptr = skb_put(skb, len);
369 if (ptr)
370 memcpy(ptr, data+8, len);
371 if (fc & IEEE80211_FCTL_MOREFRAGS)
372 goto resubmit;
373 hlist_del_init(&frag->fnode);
374 kfree(frag);
375 } else {
376 if (datalen<14)
377 goto resubmit;
378 skb = dev_alloc_skb(len + 14 + 2);
379 if (!skb)
380 goto resubmit;
381 skb_reserve(skb, 2);
382 memcpy(skb_put(skb, 12), &data[datalen-14], 12);
383 memcpy(skb_put(skb, 2), &data[6], 2);
384 memcpy(skb_put(skb, len), data+8, len);
385 }
386 skb->protocol = eth_type_trans(skb, zd->dev);
387 zd->stats.rx_packets++;
388 zd->stats.rx_bytes += skb->len;
389 netif_rx(skb);
390 }
391 resubmit:
392 memset(data, 0, ZD1201_RXSIZE);
393
394 urb->status = 0;
395 urb->dev = zd->usb;
396 if(usb_submit_urb(urb, GFP_ATOMIC))
397 free = 1;
398
399 exit:
400 if (free) {
401 zd->rxlen = 0;
402 zd->rxdatas = 1;
403 wake_up(&zd->rxdataq);
404 kfree(urb->transfer_buffer);
405 }
406 return;
407 }
408
409 static int zd1201_getconfig(struct zd1201 *zd, int rid, void *riddata,
410 unsigned int riddatalen)
411 {
412 int err;
413 int i = 0;
414 int code;
415 int rid_fid;
416 int length;
417 unsigned char *pdata;
418
419 zd->rxdatas = 0;
420 err = zd1201_docmd(zd, ZD1201_CMDCODE_ACCESS, rid, 0, 0);
421 if (err)
422 return err;
423
424 wait_event_interruptible(zd->rxdataq, zd->rxdatas);
425 if (!zd->rxlen)
426 return -EIO;
427
428 code = le16_to_cpu(*(__le16*)(&zd->rxdata[4]));
429 rid_fid = le16_to_cpu(*(__le16*)(&zd->rxdata[6]));
430 length = le16_to_cpu(*(__le16*)(&zd->rxdata[8]));
431 if (length > zd->rxlen)
432 length = zd->rxlen-6;
433
434 /* If access bit is not on, then error */
435 if ((code & ZD1201_ACCESSBIT) != ZD1201_ACCESSBIT || rid_fid != rid )
436 return -EINVAL;
437
438 /* Not enough buffer for allocating data */
439 if (riddatalen != (length - 4)) {
440 dev_dbg(&zd->usb->dev, "riddatalen mismatches, expected=%u, (packet=%u) length=%u, rid=0x%04X, rid_fid=0x%04X\n",
441 riddatalen, zd->rxlen, length, rid, rid_fid);
442 return -ENODATA;
443 }
444
445 zd->rxdatas = 0;
446 /* Issue SetRxRid commnd */
447 err = zd1201_docmd(zd, ZD1201_CMDCODE_SETRXRID, rid, 0, length);
448 if (err)
449 return err;
450
451 /* Receive RID record from resource packets */
452 wait_event_interruptible(zd->rxdataq, zd->rxdatas);
453 if (!zd->rxlen)
454 return -EIO;
455
456 if (zd->rxdata[zd->rxlen - 1] != ZD1201_PACKET_RESOURCE) {
457 dev_dbg(&zd->usb->dev, "Packet type mismatch: 0x%x not 0x3\n",
458 zd->rxdata[zd->rxlen-1]);
459 return -EINVAL;
460 }
461
462 /* Set the data pointer and received data length */
463 pdata = zd->rxdata;
464 length = zd->rxlen;
465
466 do {
467 int actual_length;
468
469 actual_length = (length > 64) ? 64 : length;
470
471 if (pdata[0] != 0x3) {
472 dev_dbg(&zd->usb->dev, "Rx Resource packet type error: %02X\n",
473 pdata[0]);
474 return -EINVAL;
475 }
476
477 if (actual_length != 64) {
478 /* Trim the last packet type byte */
479 actual_length--;
480 }
481
482 /* Skip the 4 bytes header (RID length and RID) */
483 if (i == 0) {
484 pdata += 8;
485 actual_length -= 8;
486 } else {
487 pdata += 4;
488 actual_length -= 4;
489 }
490
491 memcpy(riddata, pdata, actual_length);
492 riddata += actual_length;
493 pdata += actual_length;
494 length -= 64;
495 i++;
496 } while (length > 0);
497
498 return 0;
499 }
500
501 /*
502 * resreq:
503 * byte type
504 * byte sequence
505 * u16 reserved
506 * byte data[12]
507 * total: 16
508 */
509 static int zd1201_setconfig(struct zd1201 *zd, int rid, void *buf, int len, int wait)
510 {
511 int err;
512 unsigned char *request;
513 int reqlen;
514 char seq=0;
515 struct urb *urb;
516 gfp_t gfp_mask = wait ? GFP_NOIO : GFP_ATOMIC;
517
518 len += 4; /* first 4 are for header */
519
520 zd->rxdatas = 0;
521 zd->rxlen = 0;
522 for (seq=0; len > 0; seq++) {
523 request = kmalloc(16, gfp_mask);
524 if (!request)
525 return -ENOMEM;
526 urb = usb_alloc_urb(0, gfp_mask);
527 if (!urb) {
528 kfree(request);
529 return -ENOMEM;
530 }
531 memset(request, 0, 16);
532 reqlen = len>12 ? 12 : len;
533 request[0] = ZD1201_USB_RESREQ;
534 request[1] = seq;
535 request[2] = 0;
536 request[3] = 0;
537 if (request[1] == 0) {
538 /* add header */
539 *(__le16*)&request[4] = cpu_to_le16((len-2+1)/2);
540 *(__le16*)&request[6] = cpu_to_le16(rid);
541 memcpy(request+8, buf, reqlen-4);
542 buf += reqlen-4;
543 } else {
544 memcpy(request+4, buf, reqlen);
545 buf += reqlen;
546 }
547
548 len -= reqlen;
549
550 usb_fill_bulk_urb(urb, zd->usb, usb_sndbulkpipe(zd->usb,
551 zd->endp_out2), request, 16, zd1201_usbfree, zd);
552 err = usb_submit_urb(urb, gfp_mask);
553 if (err)
554 goto err;
555 }
556
557 request = kmalloc(16, gfp_mask);
558 if (!request)
559 return -ENOMEM;
560 urb = usb_alloc_urb(0, gfp_mask);
561 if (!urb) {
562 kfree(request);
563 return -ENOMEM;
564 }
565 *((__le32*)request) = cpu_to_le32(ZD1201_USB_CMDREQ);
566 *((__le16*)&request[4]) =
567 cpu_to_le16(ZD1201_CMDCODE_ACCESS|ZD1201_ACCESSBIT);
568 *((__le16*)&request[6]) = cpu_to_le16(rid);
569 *((__le16*)&request[8]) = cpu_to_le16(0);
570 *((__le16*)&request[10]) = cpu_to_le16(0);
571 usb_fill_bulk_urb(urb, zd->usb, usb_sndbulkpipe(zd->usb, zd->endp_out2),
572 request, 16, zd1201_usbfree, zd);
573 err = usb_submit_urb(urb, gfp_mask);
574 if (err)
575 goto err;
576
577 if (wait) {
578 wait_event_interruptible(zd->rxdataq, zd->rxdatas);
579 if (!zd->rxlen || le16_to_cpu(*(__le16*)&zd->rxdata[6]) != rid) {
580 dev_dbg(&zd->usb->dev, "wrong or no RID received\n");
581 }
582 }
583
584 return 0;
585 err:
586 kfree(request);
587 usb_free_urb(urb);
588 return err;
589 }
590
591 static inline int zd1201_getconfig16(struct zd1201 *zd, int rid, short *val)
592 {
593 int err;
594 __le16 zdval;
595
596 /* initialize */
597 *val = 0;
598
599 err = zd1201_getconfig(zd, rid, &zdval, sizeof(__le16));
600 if (err)
601 return err;
602 *val = le16_to_cpu(zdval);
603 return 0;
604 }
605
606 static inline int zd1201_setconfig16(struct zd1201 *zd, int rid, short val)
607 {
608 __le16 zdval = cpu_to_le16(val);
609 return (zd1201_setconfig(zd, rid, &zdval, sizeof(__le16), 1));
610 }
611
612 static int zd1201_drvr_start(struct zd1201 *zd)
613 {
614 int err, i;
615 short max;
616 __le16 zdmax;
617 unsigned char *buffer;
618
619 buffer = kzalloc(ZD1201_RXSIZE, GFP_KERNEL);
620 if (!buffer)
621 return -ENOMEM;
622
623 usb_fill_bulk_urb(zd->rx_urb, zd->usb,
624 usb_rcvbulkpipe(zd->usb, zd->endp_in), buffer, ZD1201_RXSIZE,
625 zd1201_usbrx, zd);
626
627 err = usb_submit_urb(zd->rx_urb, GFP_KERNEL);
628 if (err)
629 goto err_buffer;
630
631 err = zd1201_docmd(zd, ZD1201_CMDCODE_INIT, 0, 0, 0);
632 if (err)
633 goto err_urb;
634
635 err = zd1201_getconfig(zd, ZD1201_RID_CNFMAXTXBUFFERNUMBER, &zdmax,
636 sizeof(__le16));
637 if (err)
638 goto err_urb;
639
640 max = le16_to_cpu(zdmax);
641 for (i=0; i<max; i++) {
642 err = zd1201_docmd(zd, ZD1201_CMDCODE_ALLOC, 1514, 0, 0);
643 if (err)
644 goto err_urb;
645 }
646
647 return 0;
648
649 err_urb:
650 usb_kill_urb(zd->rx_urb);
651 return err;
652 err_buffer:
653 kfree(buffer);
654 return err;
655 }
656
657 /* Magic alert: The firmware doesn't seem to like the MAC state being
658 * toggled in promisc (aka monitor) mode.
659 * (It works a number of times, but will halt eventually)
660 * So we turn it of before disabling and on after enabling if needed.
661 */
662 static int zd1201_enable(struct zd1201 *zd)
663 {
664 int err;
665
666 if (zd->mac_enabled)
667 return 0;
668
669 err = zd1201_docmd(zd, ZD1201_CMDCODE_ENABLE, 0, 0, 0);
670 if (!err)
671 zd->mac_enabled = 1;
672
673 if (zd->monitor)
674 err = zd1201_setconfig16(zd, ZD1201_RID_PROMISCUOUSMODE, 1);
675
676 return err;
677 }
678
679 static int zd1201_disable(struct zd1201 *zd)
680 {
681 int err;
682
683 if (!zd->mac_enabled)
684 return 0;
685 if (zd->monitor) {
686 err = zd1201_setconfig16(zd, ZD1201_RID_PROMISCUOUSMODE, 0);
687 if (err)
688 return err;
689 }
690
691 err = zd1201_docmd(zd, ZD1201_CMDCODE_DISABLE, 0, 0, 0);
692 if (!err)
693 zd->mac_enabled = 0;
694 return err;
695 }
696
697 static int zd1201_mac_reset(struct zd1201 *zd)
698 {
699 if (!zd->mac_enabled)
700 return 0;
701 zd1201_disable(zd);
702 return zd1201_enable(zd);
703 }
704
705 static int zd1201_join(struct zd1201 *zd, char *essid, int essidlen)
706 {
707 int err, val;
708 char buf[IW_ESSID_MAX_SIZE+2];
709
710 err = zd1201_disable(zd);
711 if (err)
712 return err;
713
714 val = ZD1201_CNFAUTHENTICATION_OPENSYSTEM;
715 val |= ZD1201_CNFAUTHENTICATION_SHAREDKEY;
716 err = zd1201_setconfig16(zd, ZD1201_RID_CNFAUTHENTICATION, val);
717 if (err)
718 return err;
719
720 *(__le16 *)buf = cpu_to_le16(essidlen);
721 memcpy(buf+2, essid, essidlen);
722 if (!zd->ap) { /* Normal station */
723 err = zd1201_setconfig(zd, ZD1201_RID_CNFDESIREDSSID, buf,
724 IW_ESSID_MAX_SIZE+2, 1);
725 if (err)
726 return err;
727 } else { /* AP */
728 err = zd1201_setconfig(zd, ZD1201_RID_CNFOWNSSID, buf,
729 IW_ESSID_MAX_SIZE+2, 1);
730 if (err)
731 return err;
732 }
733
734 err = zd1201_setconfig(zd, ZD1201_RID_CNFOWNMACADDR,
735 zd->dev->dev_addr, zd->dev->addr_len, 1);
736 if (err)
737 return err;
738
739 err = zd1201_enable(zd);
740 if (err)
741 return err;
742
743 msleep(100);
744 return 0;
745 }
746
747 static int zd1201_net_open(struct net_device *dev)
748 {
749 struct zd1201 *zd = netdev_priv(dev);
750
751 /* Start MAC with wildcard if no essid set */
752 if (!zd->mac_enabled)
753 zd1201_join(zd, zd->essid, zd->essidlen);
754 netif_start_queue(dev);
755
756 return 0;
757 }
758
759 static int zd1201_net_stop(struct net_device *dev)
760 {
761 netif_stop_queue(dev);
762 return 0;
763 }
764
765 /*
766 RFC 1042 encapsulates Ethernet frames in 802.11 frames
767 by prefixing them with 0xaa, 0xaa, 0x03) followed by a SNAP OID of 0
768 (0x00, 0x00, 0x00). Zd requires an additional padding, copy
769 of ethernet addresses, length of the standard RFC 1042 packet
770 and a command byte (which is nul for tx).
771
772 tx frame (from Wlan NG):
773 RFC 1042:
774 llc 0xAA 0xAA 0x03 (802.2 LLC)
775 snap 0x00 0x00 0x00 (Ethernet encapsulated)
776 type 2 bytes, Ethernet type field
777 payload (minus eth header)
778 Zydas specific:
779 padding 1B if (skb->len+8+1)%64==0
780 Eth MAC addr 12 bytes, Ethernet MAC addresses
781 length 2 bytes, RFC 1042 packet length
782 (llc+snap+type+payload)
783 zd 1 null byte, zd1201 packet type
784 */
785 static int zd1201_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
786 {
787 struct zd1201 *zd = netdev_priv(dev);
788 unsigned char *txbuf = zd->txdata;
789 int txbuflen, pad = 0, err;
790 struct urb *urb = zd->tx_urb;
791
792 if (!zd->mac_enabled || zd->monitor) {
793 zd->stats.tx_dropped++;
794 kfree_skb(skb);
795 return 0;
796 }
797 netif_stop_queue(dev);
798
799 txbuflen = skb->len + 8 + 1;
800 if (txbuflen%64 == 0) {
801 pad = 1;
802 txbuflen++;
803 }
804 txbuf[0] = 0xAA;
805 txbuf[1] = 0xAA;
806 txbuf[2] = 0x03;
807 txbuf[3] = 0x00; /* rfc1042 */
808 txbuf[4] = 0x00;
809 txbuf[5] = 0x00;
810
811 skb_copy_from_linear_data_offset(skb, 12, txbuf + 6, skb->len - 12);
812 if (pad)
813 txbuf[skb->len-12+6]=0;
814 skb_copy_from_linear_data(skb, txbuf + skb->len - 12 + 6 + pad, 12);
815 *(__be16*)&txbuf[skb->len+6+pad] = htons(skb->len-12+6);
816 txbuf[txbuflen-1] = 0;
817
818 usb_fill_bulk_urb(urb, zd->usb, usb_sndbulkpipe(zd->usb, zd->endp_out),
819 txbuf, txbuflen, zd1201_usbtx, zd);
820
821 err = usb_submit_urb(zd->tx_urb, GFP_ATOMIC);
822 if (err) {
823 zd->stats.tx_errors++;
824 netif_start_queue(dev);
825 return err;
826 }
827 zd->stats.tx_packets++;
828 zd->stats.tx_bytes += skb->len;
829 dev->trans_start = jiffies;
830 kfree_skb(skb);
831
832 return 0;
833 }
834
835 static void zd1201_tx_timeout(struct net_device *dev)
836 {
837 struct zd1201 *zd = netdev_priv(dev);
838
839 if (!zd)
840 return;
841 dev_warn(&zd->usb->dev, "%s: TX timeout, shooting down urb\n",
842 dev->name);
843 usb_unlink_urb(zd->tx_urb);
844 zd->stats.tx_errors++;
845 /* Restart the timeout to quiet the watchdog: */
846 dev->trans_start = jiffies;
847 }
848
849 static int zd1201_set_mac_address(struct net_device *dev, void *p)
850 {
851 struct sockaddr *addr = p;
852 struct zd1201 *zd = netdev_priv(dev);
853 int err;
854
855 if (!zd)
856 return -ENODEV;
857
858 err = zd1201_setconfig(zd, ZD1201_RID_CNFOWNMACADDR,
859 addr->sa_data, dev->addr_len, 1);
860 if (err)
861 return err;
862 memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
863
864 return zd1201_mac_reset(zd);
865 }
866
867 static struct net_device_stats *zd1201_get_stats(struct net_device *dev)
868 {
869 struct zd1201 *zd = netdev_priv(dev);
870
871 return &zd->stats;
872 }
873
874 static struct iw_statistics *zd1201_get_wireless_stats(struct net_device *dev)
875 {
876 struct zd1201 *zd = netdev_priv(dev);
877
878 return &zd->iwstats;
879 }
880
881 static void zd1201_set_multicast(struct net_device *dev)
882 {
883 struct zd1201 *zd = netdev_priv(dev);
884 struct dev_mc_list *mc = dev->mc_list;
885 unsigned char reqbuf[ETH_ALEN*ZD1201_MAXMULTI];
886 int i;
887
888 if (dev->mc_count > ZD1201_MAXMULTI)
889 return;
890
891 for (i=0; i<dev->mc_count; i++) {
892 memcpy(reqbuf+i*ETH_ALEN, mc->dmi_addr, ETH_ALEN);
893 mc = mc->next;
894 }
895 zd1201_setconfig(zd, ZD1201_RID_CNFGROUPADDRESS, reqbuf,
896 dev->mc_count*ETH_ALEN, 0);
897
898 }
899
900 static int zd1201_config_commit(struct net_device *dev,
901 struct iw_request_info *info, struct iw_point *data, char *essid)
902 {
903 struct zd1201 *zd = netdev_priv(dev);
904
905 return zd1201_mac_reset(zd);
906 }
907
908 static int zd1201_get_name(struct net_device *dev,
909 struct iw_request_info *info, char *name, char *extra)
910 {
911 strcpy(name, "IEEE 802.11b");
912 return 0;
913 }
914
915 static int zd1201_set_freq(struct net_device *dev,
916 struct iw_request_info *info, struct iw_freq *freq, char *extra)
917 {
918 struct zd1201 *zd = netdev_priv(dev);
919 short channel = 0;
920 int err;
921
922 if (freq->e == 0)
923 channel = freq->m;
924 else {
925 if (freq->m >= 2482)
926 channel = 14;
927 if (freq->m >= 2407)
928 channel = (freq->m-2407)/5;
929 }
930
931 err = zd1201_setconfig16(zd, ZD1201_RID_CNFOWNCHANNEL, channel);
932 if (err)
933 return err;
934
935 zd1201_mac_reset(zd);
936
937 return 0;
938 }
939
940 static int zd1201_get_freq(struct net_device *dev,
941 struct iw_request_info *info, struct iw_freq *freq, char *extra)
942 {
943 struct zd1201 *zd = netdev_priv(dev);
944 short channel;
945 int err;
946
947 err = zd1201_getconfig16(zd, ZD1201_RID_CNFOWNCHANNEL, &channel);
948 if (err)
949 return err;
950 freq->e = 0;
951 freq->m = channel;
952
953 return 0;
954 }
955
956 static int zd1201_set_mode(struct net_device *dev,
957 struct iw_request_info *info, __u32 *mode, char *extra)
958 {
959 struct zd1201 *zd = netdev_priv(dev);
960 short porttype, monitor = 0;
961 unsigned char buffer[IW_ESSID_MAX_SIZE+2];
962 int err;
963
964 if (zd->ap) {
965 if (*mode != IW_MODE_MASTER)
966 return -EINVAL;
967 return 0;
968 }
969
970 err = zd1201_setconfig16(zd, ZD1201_RID_PROMISCUOUSMODE, 0);
971 if (err)
972 return err;
973 zd->dev->type = ARPHRD_ETHER;
974 switch(*mode) {
975 case IW_MODE_MONITOR:
976 monitor = 1;
977 zd->dev->type = ARPHRD_IEEE80211;
978 /* Make sure we are no longer associated with by
979 setting an 'impossible' essid.
980 (otherwise we mess up firmware)
981 */
982 zd1201_join(zd, "\0-*#\0", 5);
983 /* Put port in pIBSS */
984 case 8: /* No pseudo-IBSS in wireless extensions (yet) */
985 porttype = ZD1201_PORTTYPE_PSEUDOIBSS;
986 break;
987 case IW_MODE_ADHOC:
988 porttype = ZD1201_PORTTYPE_IBSS;
989 break;
990 case IW_MODE_INFRA:
991 porttype = ZD1201_PORTTYPE_BSS;
992 break;
993 default:
994 return -EINVAL;
995 }
996
997 err = zd1201_setconfig16(zd, ZD1201_RID_CNFPORTTYPE, porttype);
998 if (err)
999 return err;
1000 if (zd->monitor && !monitor) {
1001 zd1201_disable(zd);
1002 *(__le16 *)buffer = cpu_to_le16(zd->essidlen);
1003 memcpy(buffer+2, zd->essid, zd->essidlen);
1004 err = zd1201_setconfig(zd, ZD1201_RID_CNFDESIREDSSID,
1005 buffer, IW_ESSID_MAX_SIZE+2, 1);
1006 if (err)
1007 return err;
1008 }
1009 zd->monitor = monitor;
1010 /* If monitor mode is set we don't actually turn it on here since it
1011 * is done during mac reset anyway (see zd1201_mac_enable).
1012 */
1013 zd1201_mac_reset(zd);
1014
1015 return 0;
1016 }
1017
1018 static int zd1201_get_mode(struct net_device *dev,
1019 struct iw_request_info *info, __u32 *mode, char *extra)
1020 {
1021 struct zd1201 *zd = netdev_priv(dev);
1022 short porttype;
1023 int err;
1024
1025 err = zd1201_getconfig16(zd, ZD1201_RID_CNFPORTTYPE, &porttype);
1026 if (err)
1027 return err;
1028 switch(porttype) {
1029 case ZD1201_PORTTYPE_IBSS:
1030 *mode = IW_MODE_ADHOC;
1031 break;
1032 case ZD1201_PORTTYPE_BSS:
1033 *mode = IW_MODE_INFRA;
1034 break;
1035 case ZD1201_PORTTYPE_WDS:
1036 *mode = IW_MODE_REPEAT;
1037 break;
1038 case ZD1201_PORTTYPE_PSEUDOIBSS:
1039 *mode = 8;/* No Pseudo-IBSS... */
1040 break;
1041 case ZD1201_PORTTYPE_AP:
1042 *mode = IW_MODE_MASTER;
1043 break;
1044 default:
1045 dev_dbg(&zd->usb->dev, "Unknown porttype: %d\n",
1046 porttype);
1047 *mode = IW_MODE_AUTO;
1048 }
1049 if (zd->monitor)
1050 *mode = IW_MODE_MONITOR;
1051
1052 return 0;
1053 }
1054
1055 static int zd1201_get_range(struct net_device *dev,
1056 struct iw_request_info *info, struct iw_point *wrq, char *extra)
1057 {
1058 struct iw_range *range = (struct iw_range *)extra;
1059
1060 wrq->length = sizeof(struct iw_range);
1061 memset(range, 0, sizeof(struct iw_range));
1062 range->we_version_compiled = WIRELESS_EXT;
1063 range->we_version_source = WIRELESS_EXT;
1064
1065 range->max_qual.qual = 128;
1066 range->max_qual.level = 128;
1067 range->max_qual.noise = 128;
1068 range->max_qual.updated = 7;
1069
1070 range->encoding_size[0] = 5;
1071 range->encoding_size[1] = 13;
1072 range->num_encoding_sizes = 2;
1073 range->max_encoding_tokens = ZD1201_NUMKEYS;
1074
1075 range->num_bitrates = 4;
1076 range->bitrate[0] = 1000000;
1077 range->bitrate[1] = 2000000;
1078 range->bitrate[2] = 5500000;
1079 range->bitrate[3] = 11000000;
1080
1081 range->min_rts = 0;
1082 range->min_frag = ZD1201_FRAGMIN;
1083 range->max_rts = ZD1201_RTSMAX;
1084 range->min_frag = ZD1201_FRAGMAX;
1085
1086 return 0;
1087 }
1088
1089 /* Little bit of magic here: we only get the quality if we poll
1090 * for it, and we never get an actual request to trigger such
1091 * a poll. Therefore we 'assume' that the user will soon ask for
1092 * the stats after asking the bssid.
1093 */
1094 static int zd1201_get_wap(struct net_device *dev,
1095 struct iw_request_info *info, struct sockaddr *ap_addr, char *extra)
1096 {
1097 struct zd1201 *zd = netdev_priv(dev);
1098 unsigned char buffer[6];
1099
1100 if (!zd1201_getconfig(zd, ZD1201_RID_COMMSQUALITY, buffer, 6)) {
1101 /* Unfortunately the quality and noise reported is useless.
1102 they seem to be accumulators that increase until you
1103 read them, unless we poll on a fixed interval we can't
1104 use them
1105 */
1106 /*zd->iwstats.qual.qual = le16_to_cpu(((__le16 *)buffer)[0]);*/
1107 zd->iwstats.qual.level = le16_to_cpu(((__le16 *)buffer)[1]);
1108 /*zd->iwstats.qual.noise = le16_to_cpu(((__le16 *)buffer)[2]);*/
1109 zd->iwstats.qual.updated = 2;
1110 }
1111
1112 return zd1201_getconfig(zd, ZD1201_RID_CURRENTBSSID, ap_addr->sa_data, 6);
1113 }
1114
1115 static int zd1201_set_scan(struct net_device *dev,
1116 struct iw_request_info *info, struct iw_point *srq, char *extra)
1117 {
1118 /* We do everything in get_scan */
1119 return 0;
1120 }
1121
1122 static int zd1201_get_scan(struct net_device *dev,
1123 struct iw_request_info *info, struct iw_point *srq, char *extra)
1124 {
1125 struct zd1201 *zd = netdev_priv(dev);
1126 int err, i, j, enabled_save;
1127 struct iw_event iwe;
1128 char *cev = extra;
1129 char *end_buf = extra + IW_SCAN_MAX_DATA;
1130
1131 /* No scanning in AP mode */
1132 if (zd->ap)
1133 return -EOPNOTSUPP;
1134
1135 /* Scan doesn't seem to work if disabled */
1136 enabled_save = zd->mac_enabled;
1137 zd1201_enable(zd);
1138
1139 zd->rxdatas = 0;
1140 err = zd1201_docmd(zd, ZD1201_CMDCODE_INQUIRE,
1141 ZD1201_INQ_SCANRESULTS, 0, 0);
1142 if (err)
1143 return err;
1144
1145 wait_event_interruptible(zd->rxdataq, zd->rxdatas);
1146 if (!zd->rxlen)
1147 return -EIO;
1148
1149 if (le16_to_cpu(*(__le16*)&zd->rxdata[2]) != ZD1201_INQ_SCANRESULTS)
1150 return -EIO;
1151
1152 for(i=8; i<zd->rxlen; i+=62) {
1153 iwe.cmd = SIOCGIWAP;
1154 iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
1155 memcpy(iwe.u.ap_addr.sa_data, zd->rxdata+i+6, 6);
1156 cev = iwe_stream_add_event(info, cev, end_buf,
1157 &iwe, IW_EV_ADDR_LEN);
1158
1159 iwe.cmd = SIOCGIWESSID;
1160 iwe.u.data.length = zd->rxdata[i+16];
1161 iwe.u.data.flags = 1;
1162 cev = iwe_stream_add_point(info, cev, end_buf,
1163 &iwe, zd->rxdata+i+18);
1164
1165 iwe.cmd = SIOCGIWMODE;
1166 if (zd->rxdata[i+14]&0x01)
1167 iwe.u.mode = IW_MODE_MASTER;
1168 else
1169 iwe.u.mode = IW_MODE_ADHOC;
1170 cev = iwe_stream_add_event(info, cev, end_buf,
1171 &iwe, IW_EV_UINT_LEN);
1172
1173 iwe.cmd = SIOCGIWFREQ;
1174 iwe.u.freq.m = zd->rxdata[i+0];
1175 iwe.u.freq.e = 0;
1176 cev = iwe_stream_add_event(info, cev, end_buf,
1177 &iwe, IW_EV_FREQ_LEN);
1178
1179 iwe.cmd = SIOCGIWRATE;
1180 iwe.u.bitrate.fixed = 0;
1181 iwe.u.bitrate.disabled = 0;
1182 for (j=0; j<10; j++) if (zd->rxdata[i+50+j]) {
1183 iwe.u.bitrate.value = (zd->rxdata[i+50+j]&0x7f)*500000;
1184 cev = iwe_stream_add_event(info, cev, end_buf,
1185 &iwe, IW_EV_PARAM_LEN);
1186 }
1187
1188 iwe.cmd = SIOCGIWENCODE;
1189 iwe.u.data.length = 0;
1190 if (zd->rxdata[i+14]&0x10)
1191 iwe.u.data.flags = IW_ENCODE_ENABLED;
1192 else
1193 iwe.u.data.flags = IW_ENCODE_DISABLED;
1194 cev = iwe_stream_add_point(info, cev, end_buf, &iwe, NULL);
1195
1196 iwe.cmd = IWEVQUAL;
1197 iwe.u.qual.qual = zd->rxdata[i+4];
1198 iwe.u.qual.noise= zd->rxdata[i+2]/10-100;
1199 iwe.u.qual.level = (256+zd->rxdata[i+4]*100)/255-100;
1200 iwe.u.qual.updated = 7;
1201 cev = iwe_stream_add_event(info, cev, end_buf,
1202 &iwe, IW_EV_QUAL_LEN);
1203 }
1204
1205 if (!enabled_save)
1206 zd1201_disable(zd);
1207
1208 srq->length = cev - extra;
1209 srq->flags = 0;
1210
1211 return 0;
1212 }
1213
1214 static int zd1201_set_essid(struct net_device *dev,
1215 struct iw_request_info *info, struct iw_point *data, char *essid)
1216 {
1217 struct zd1201 *zd = netdev_priv(dev);
1218
1219 if (data->length > IW_ESSID_MAX_SIZE)
1220 return -EINVAL;
1221 if (data->length < 1)
1222 data->length = 1;
1223 zd->essidlen = data->length;
1224 memset(zd->essid, 0, IW_ESSID_MAX_SIZE+1);
1225 memcpy(zd->essid, essid, data->length);
1226 return zd1201_join(zd, zd->essid, zd->essidlen);
1227 }
1228
1229 static int zd1201_get_essid(struct net_device *dev,
1230 struct iw_request_info *info, struct iw_point *data, char *essid)
1231 {
1232 struct zd1201 *zd = netdev_priv(dev);
1233
1234 memcpy(essid, zd->essid, zd->essidlen);
1235 data->flags = 1;
1236 data->length = zd->essidlen;
1237
1238 return 0;
1239 }
1240
1241 static int zd1201_get_nick(struct net_device *dev, struct iw_request_info *info,
1242 struct iw_point *data, char *nick)
1243 {
1244 strcpy(nick, "zd1201");
1245 data->flags = 1;
1246 data->length = strlen(nick);
1247 return 0;
1248 }
1249
1250 static int zd1201_set_rate(struct net_device *dev,
1251 struct iw_request_info *info, struct iw_param *rrq, char *extra)
1252 {
1253 struct zd1201 *zd = netdev_priv(dev);
1254 short rate;
1255 int err;
1256
1257 switch (rrq->value) {
1258 case 1000000:
1259 rate = ZD1201_RATEB1;
1260 break;
1261 case 2000000:
1262 rate = ZD1201_RATEB2;
1263 break;
1264 case 5500000:
1265 rate = ZD1201_RATEB5;
1266 break;
1267 case 11000000:
1268 default:
1269 rate = ZD1201_RATEB11;
1270 break;
1271 }
1272 if (!rrq->fixed) { /* Also enable all lower bitrates */
1273 rate |= rate-1;
1274 }
1275
1276 err = zd1201_setconfig16(zd, ZD1201_RID_TXRATECNTL, rate);
1277 if (err)
1278 return err;
1279
1280 return zd1201_mac_reset(zd);
1281 }
1282
1283 static int zd1201_get_rate(struct net_device *dev,
1284 struct iw_request_info *info, struct iw_param *rrq, char *extra)
1285 {
1286 struct zd1201 *zd = netdev_priv(dev);
1287 short rate;
1288 int err;
1289
1290 err = zd1201_getconfig16(zd, ZD1201_RID_CURRENTTXRATE, &rate);
1291 if (err)
1292 return err;
1293
1294 switch(rate) {
1295 case 1:
1296 rrq->value = 1000000;
1297 break;
1298 case 2:
1299 rrq->value = 2000000;
1300 break;
1301 case 5:
1302 rrq->value = 5500000;
1303 break;
1304 case 11:
1305 rrq->value = 11000000;
1306 break;
1307 default:
1308 rrq->value = 0;
1309 }
1310 rrq->fixed = 0;
1311 rrq->disabled = 0;
1312
1313 return 0;
1314 }
1315
1316 static int zd1201_set_rts(struct net_device *dev, struct iw_request_info *info,
1317 struct iw_param *rts, char *extra)
1318 {
1319 struct zd1201 *zd = netdev_priv(dev);
1320 int err;
1321 short val = rts->value;
1322
1323 if (rts->disabled || !rts->fixed)
1324 val = ZD1201_RTSMAX;
1325 if (val > ZD1201_RTSMAX)
1326 return -EINVAL;
1327 if (val < 0)
1328 return -EINVAL;
1329
1330 err = zd1201_setconfig16(zd, ZD1201_RID_CNFRTSTHRESHOLD, val);
1331 if (err)
1332 return err;
1333 return zd1201_mac_reset(zd);
1334 }
1335
1336 static int zd1201_get_rts(struct net_device *dev, struct iw_request_info *info,
1337 struct iw_param *rts, char *extra)
1338 {
1339 struct zd1201 *zd = netdev_priv(dev);
1340 short rtst;
1341 int err;
1342
1343 err = zd1201_getconfig16(zd, ZD1201_RID_CNFRTSTHRESHOLD, &rtst);
1344 if (err)
1345 return err;
1346 rts->value = rtst;
1347 rts->disabled = (rts->value == ZD1201_RTSMAX);
1348 rts->fixed = 1;
1349
1350 return 0;
1351 }
1352
1353 static int zd1201_set_frag(struct net_device *dev, struct iw_request_info *info,
1354 struct iw_param *frag, char *extra)
1355 {
1356 struct zd1201 *zd = netdev_priv(dev);
1357 int err;
1358 short val = frag->value;
1359
1360 if (frag->disabled || !frag->fixed)
1361 val = ZD1201_FRAGMAX;
1362 if (val > ZD1201_FRAGMAX)
1363 return -EINVAL;
1364 if (val < ZD1201_FRAGMIN)
1365 return -EINVAL;
1366 if (val & 1)
1367 return -EINVAL;
1368 err = zd1201_setconfig16(zd, ZD1201_RID_CNFFRAGTHRESHOLD, val);
1369 if (err)
1370 return err;
1371 return zd1201_mac_reset(zd);
1372 }
1373
1374 static int zd1201_get_frag(struct net_device *dev, struct iw_request_info *info,
1375 struct iw_param *frag, char *extra)
1376 {
1377 struct zd1201 *zd = netdev_priv(dev);
1378 short fragt;
1379 int err;
1380
1381 err = zd1201_getconfig16(zd, ZD1201_RID_CNFFRAGTHRESHOLD, &fragt);
1382 if (err)
1383 return err;
1384 frag->value = fragt;
1385 frag->disabled = (frag->value == ZD1201_FRAGMAX);
1386 frag->fixed = 1;
1387
1388 return 0;
1389 }
1390
1391 static int zd1201_set_retry(struct net_device *dev,
1392 struct iw_request_info *info, struct iw_param *rrq, char *extra)
1393 {
1394 return 0;
1395 }
1396
1397 static int zd1201_get_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_set_encode(struct net_device *dev,
1404 struct iw_request_info *info, struct iw_point *erq, char *key)
1405 {
1406 struct zd1201 *zd = netdev_priv(dev);
1407 short i;
1408 int err, rid;
1409
1410 if (erq->length > ZD1201_MAXKEYLEN)
1411 return -EINVAL;
1412
1413 i = (erq->flags & IW_ENCODE_INDEX)-1;
1414 if (i == -1) {
1415 err = zd1201_getconfig16(zd,ZD1201_RID_CNFDEFAULTKEYID,&i);
1416 if (err)
1417 return err;
1418 } else {
1419 err = zd1201_setconfig16(zd, ZD1201_RID_CNFDEFAULTKEYID, i);
1420 if (err)
1421 return err;
1422 }
1423
1424 if (i < 0 || i >= ZD1201_NUMKEYS)
1425 return -EINVAL;
1426
1427 rid = ZD1201_RID_CNFDEFAULTKEY0 + i;
1428 err = zd1201_setconfig(zd, rid, key, erq->length, 1);
1429 if (err)
1430 return err;
1431 zd->encode_keylen[i] = erq->length;
1432 memcpy(zd->encode_keys[i], key, erq->length);
1433
1434 i=0;
1435 if (!(erq->flags & IW_ENCODE_DISABLED & IW_ENCODE_MODE)) {
1436 i |= 0x01;
1437 zd->encode_enabled = 1;
1438 } else
1439 zd->encode_enabled = 0;
1440 if (erq->flags & IW_ENCODE_RESTRICTED & IW_ENCODE_MODE) {
1441 i |= 0x02;
1442 zd->encode_restricted = 1;
1443 } else
1444 zd->encode_restricted = 0;
1445 err = zd1201_setconfig16(zd, ZD1201_RID_CNFWEBFLAGS, i);
1446 if (err)
1447 return err;
1448
1449 if (zd->encode_enabled)
1450 i = ZD1201_CNFAUTHENTICATION_SHAREDKEY;
1451 else
1452 i = ZD1201_CNFAUTHENTICATION_OPENSYSTEM;
1453 err = zd1201_setconfig16(zd, ZD1201_RID_CNFAUTHENTICATION, i);
1454 if (err)
1455 return err;
1456
1457 return zd1201_mac_reset(zd);
1458 }
1459
1460 static int zd1201_get_encode(struct net_device *dev,
1461 struct iw_request_info *info, struct iw_point *erq, char *key)
1462 {
1463 struct zd1201 *zd = netdev_priv(dev);
1464 short i;
1465 int err;
1466
1467 if (zd->encode_enabled)
1468 erq->flags = IW_ENCODE_ENABLED;
1469 else
1470 erq->flags = IW_ENCODE_DISABLED;
1471 if (zd->encode_restricted)
1472 erq->flags |= IW_ENCODE_RESTRICTED;
1473 else
1474 erq->flags |= IW_ENCODE_OPEN;
1475
1476 i = (erq->flags & IW_ENCODE_INDEX) -1;
1477 if (i == -1) {
1478 err = zd1201_getconfig16(zd, ZD1201_RID_CNFDEFAULTKEYID, &i);
1479 if (err)
1480 return err;
1481 }
1482 if (i<0 || i>= ZD1201_NUMKEYS)
1483 return -EINVAL;
1484
1485 erq->flags |= i+1;
1486
1487 erq->length = zd->encode_keylen[i];
1488 memcpy(key, zd->encode_keys[i], erq->length);
1489
1490 return 0;
1491 }
1492
1493 static int zd1201_set_power(struct net_device *dev,
1494 struct iw_request_info *info, struct iw_param *vwrq, char *extra)
1495 {
1496 struct zd1201 *zd = netdev_priv(dev);
1497 short enabled, duration, level;
1498 int err;
1499
1500 enabled = vwrq->disabled ? 0 : 1;
1501 if (enabled) {
1502 if (vwrq->flags & IW_POWER_PERIOD) {
1503 duration = vwrq->value;
1504 err = zd1201_setconfig16(zd,
1505 ZD1201_RID_CNFMAXSLEEPDURATION, duration);
1506 if (err)
1507 return err;
1508 goto out;
1509 }
1510 if (vwrq->flags & IW_POWER_TIMEOUT) {
1511 err = zd1201_getconfig16(zd,
1512 ZD1201_RID_CNFMAXSLEEPDURATION, &duration);
1513 if (err)
1514 return err;
1515 level = vwrq->value * 4 / duration;
1516 if (level > 4)
1517 level = 4;
1518 if (level < 0)
1519 level = 0;
1520 err = zd1201_setconfig16(zd, ZD1201_RID_CNFPMEPS,
1521 level);
1522 if (err)
1523 return err;
1524 goto out;
1525 }
1526 return -EINVAL;
1527 }
1528 out:
1529 return zd1201_setconfig16(zd, ZD1201_RID_CNFPMENABLED, enabled);
1530 }
1531
1532 static int zd1201_get_power(struct net_device *dev,
1533 struct iw_request_info *info, struct iw_param *vwrq, char *extra)
1534 {
1535 struct zd1201 *zd = netdev_priv(dev);
1536 short enabled, level, duration;
1537 int err;
1538
1539 err = zd1201_getconfig16(zd, ZD1201_RID_CNFPMENABLED, &enabled);
1540 if (err)
1541 return err;
1542 err = zd1201_getconfig16(zd, ZD1201_RID_CNFPMEPS, &level);
1543 if (err)
1544 return err;
1545 err = zd1201_getconfig16(zd, ZD1201_RID_CNFMAXSLEEPDURATION, &duration);
1546 if (err)
1547 return err;
1548 vwrq->disabled = enabled ? 0 : 1;
1549 if (vwrq->flags & IW_POWER_TYPE) {
1550 if (vwrq->flags & IW_POWER_PERIOD) {
1551 vwrq->value = duration;
1552 vwrq->flags = IW_POWER_PERIOD;
1553 } else {
1554 vwrq->value = duration * level / 4;
1555 vwrq->flags = IW_POWER_TIMEOUT;
1556 }
1557 }
1558 if (vwrq->flags & IW_POWER_MODE) {
1559 if (enabled && level)
1560 vwrq->flags = IW_POWER_UNICAST_R;
1561 else
1562 vwrq->flags = IW_POWER_ALL_R;
1563 }
1564
1565 return 0;
1566 }
1567
1568
1569 static const iw_handler zd1201_iw_handler[] =
1570 {
1571 (iw_handler) zd1201_config_commit, /* SIOCSIWCOMMIT */
1572 (iw_handler) zd1201_get_name, /* SIOCGIWNAME */
1573 (iw_handler) NULL, /* SIOCSIWNWID */
1574 (iw_handler) NULL, /* SIOCGIWNWID */
1575 (iw_handler) zd1201_set_freq, /* SIOCSIWFREQ */
1576 (iw_handler) zd1201_get_freq, /* SIOCGIWFREQ */
1577 (iw_handler) zd1201_set_mode, /* SIOCSIWMODE */
1578 (iw_handler) zd1201_get_mode, /* SIOCGIWMODE */
1579 (iw_handler) NULL, /* SIOCSIWSENS */
1580 (iw_handler) NULL, /* SIOCGIWSENS */
1581 (iw_handler) NULL, /* SIOCSIWRANGE */
1582 (iw_handler) zd1201_get_range, /* SIOCGIWRANGE */
1583 (iw_handler) NULL, /* SIOCSIWPRIV */
1584 (iw_handler) NULL, /* SIOCGIWPRIV */
1585 (iw_handler) NULL, /* SIOCSIWSTATS */
1586 (iw_handler) NULL, /* SIOCGIWSTATS */
1587 (iw_handler) NULL, /* SIOCSIWSPY */
1588 (iw_handler) NULL, /* SIOCGIWSPY */
1589 (iw_handler) NULL, /* -- hole -- */
1590 (iw_handler) NULL, /* -- hole -- */
1591 (iw_handler) NULL/*zd1201_set_wap*/, /* SIOCSIWAP */
1592 (iw_handler) zd1201_get_wap, /* SIOCGIWAP */
1593 (iw_handler) NULL, /* -- hole -- */
1594 (iw_handler) NULL, /* SIOCGIWAPLIST */
1595 (iw_handler) zd1201_set_scan, /* SIOCSIWSCAN */
1596 (iw_handler) zd1201_get_scan, /* SIOCGIWSCAN */
1597 (iw_handler) zd1201_set_essid, /* SIOCSIWESSID */
1598 (iw_handler) zd1201_get_essid, /* SIOCGIWESSID */
1599 (iw_handler) NULL, /* SIOCSIWNICKN */
1600 (iw_handler) zd1201_get_nick, /* SIOCGIWNICKN */
1601 (iw_handler) NULL, /* -- hole -- */
1602 (iw_handler) NULL, /* -- hole -- */
1603 (iw_handler) zd1201_set_rate, /* SIOCSIWRATE */
1604 (iw_handler) zd1201_get_rate, /* SIOCGIWRATE */
1605 (iw_handler) zd1201_set_rts, /* SIOCSIWRTS */
1606 (iw_handler) zd1201_get_rts, /* SIOCGIWRTS */
1607 (iw_handler) zd1201_set_frag, /* SIOCSIWFRAG */
1608 (iw_handler) zd1201_get_frag, /* SIOCGIWFRAG */
1609 (iw_handler) NULL, /* SIOCSIWTXPOW */
1610 (iw_handler) NULL, /* SIOCGIWTXPOW */
1611 (iw_handler) zd1201_set_retry, /* SIOCSIWRETRY */
1612 (iw_handler) zd1201_get_retry, /* SIOCGIWRETRY */
1613 (iw_handler) zd1201_set_encode, /* SIOCSIWENCODE */
1614 (iw_handler) zd1201_get_encode, /* SIOCGIWENCODE */
1615 (iw_handler) zd1201_set_power, /* SIOCSIWPOWER */
1616 (iw_handler) zd1201_get_power, /* SIOCGIWPOWER */
1617 };
1618
1619 static int zd1201_set_hostauth(struct net_device *dev,
1620 struct iw_request_info *info, struct iw_param *rrq, char *extra)
1621 {
1622 struct zd1201 *zd = netdev_priv(dev);
1623
1624 if (!zd->ap)
1625 return -EOPNOTSUPP;
1626
1627 return zd1201_setconfig16(zd, ZD1201_RID_CNFHOSTAUTH, rrq->value);
1628 }
1629
1630 static int zd1201_get_hostauth(struct net_device *dev,
1631 struct iw_request_info *info, struct iw_param *rrq, char *extra)
1632 {
1633 struct zd1201 *zd = netdev_priv(dev);
1634 short hostauth;
1635 int err;
1636
1637 if (!zd->ap)
1638 return -EOPNOTSUPP;
1639
1640 err = zd1201_getconfig16(zd, ZD1201_RID_CNFHOSTAUTH, &hostauth);
1641 if (err)
1642 return err;
1643 rrq->value = hostauth;
1644 rrq->fixed = 1;
1645
1646 return 0;
1647 }
1648
1649 static int zd1201_auth_sta(struct net_device *dev,
1650 struct iw_request_info *info, struct sockaddr *sta, char *extra)
1651 {
1652 struct zd1201 *zd = netdev_priv(dev);
1653 unsigned char buffer[10];
1654
1655 if (!zd->ap)
1656 return -EOPNOTSUPP;
1657
1658 memcpy(buffer, sta->sa_data, ETH_ALEN);
1659 *(short*)(buffer+6) = 0; /* 0==success, 1==failure */
1660 *(short*)(buffer+8) = 0;
1661
1662 return zd1201_setconfig(zd, ZD1201_RID_AUTHENTICATESTA, buffer, 10, 1);
1663 }
1664
1665 static int zd1201_set_maxassoc(struct net_device *dev,
1666 struct iw_request_info *info, struct iw_param *rrq, char *extra)
1667 {
1668 struct zd1201 *zd = netdev_priv(dev);
1669 int err;
1670
1671 if (!zd->ap)
1672 return -EOPNOTSUPP;
1673
1674 err = zd1201_setconfig16(zd, ZD1201_RID_CNFMAXASSOCSTATIONS, rrq->value);
1675 if (err)
1676 return err;
1677 return 0;
1678 }
1679
1680 static int zd1201_get_maxassoc(struct net_device *dev,
1681 struct iw_request_info *info, struct iw_param *rrq, char *extra)
1682 {
1683 struct zd1201 *zd = netdev_priv(dev);
1684 short maxassoc;
1685 int err;
1686
1687 if (!zd->ap)
1688 return -EOPNOTSUPP;
1689
1690 err = zd1201_getconfig16(zd, ZD1201_RID_CNFMAXASSOCSTATIONS, &maxassoc);
1691 if (err)
1692 return err;
1693 rrq->value = maxassoc;
1694 rrq->fixed = 1;
1695
1696 return 0;
1697 }
1698
1699 static const iw_handler zd1201_private_handler[] = {
1700 (iw_handler) zd1201_set_hostauth, /* ZD1201SIWHOSTAUTH */
1701 (iw_handler) zd1201_get_hostauth, /* ZD1201GIWHOSTAUTH */
1702 (iw_handler) zd1201_auth_sta, /* ZD1201SIWAUTHSTA */
1703 (iw_handler) NULL, /* nothing to get */
1704 (iw_handler) zd1201_set_maxassoc, /* ZD1201SIMAXASSOC */
1705 (iw_handler) zd1201_get_maxassoc, /* ZD1201GIMAXASSOC */
1706 };
1707
1708 static const struct iw_priv_args zd1201_private_args[] = {
1709 { ZD1201SIWHOSTAUTH, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
1710 IW_PRIV_TYPE_NONE, "sethostauth" },
1711 { ZD1201GIWHOSTAUTH, IW_PRIV_TYPE_NONE,
1712 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "gethostauth" },
1713 { ZD1201SIWAUTHSTA, IW_PRIV_TYPE_ADDR | IW_PRIV_SIZE_FIXED | 1,
1714 IW_PRIV_TYPE_NONE, "authstation" },
1715 { ZD1201SIWMAXASSOC, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
1716 IW_PRIV_TYPE_NONE, "setmaxassoc" },
1717 { ZD1201GIWMAXASSOC, IW_PRIV_TYPE_NONE,
1718 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getmaxassoc" },
1719 };
1720
1721 static const struct iw_handler_def zd1201_iw_handlers = {
1722 .num_standard = ARRAY_SIZE(zd1201_iw_handler),
1723 .num_private = ARRAY_SIZE(zd1201_private_handler),
1724 .num_private_args = ARRAY_SIZE(zd1201_private_args),
1725 .standard = (iw_handler *)zd1201_iw_handler,
1726 .private = (iw_handler *)zd1201_private_handler,
1727 .private_args = (struct iw_priv_args *) zd1201_private_args,
1728 .get_wireless_stats = zd1201_get_wireless_stats,
1729 };
1730
1731 static int zd1201_probe(struct usb_interface *interface,
1732 const struct usb_device_id *id)
1733 {
1734 struct zd1201 *zd;
1735 struct net_device *dev;
1736 struct usb_device *usb;
1737 int err;
1738 short porttype;
1739 char buf[IW_ESSID_MAX_SIZE+2];
1740
1741 usb = interface_to_usbdev(interface);
1742
1743 dev = alloc_etherdev(sizeof(*zd));
1744 if (!dev)
1745 return -ENOMEM;
1746 zd = netdev_priv(dev);
1747 zd->dev = dev;
1748
1749 zd->ap = ap;
1750 zd->usb = usb;
1751 zd->removed = 0;
1752 init_waitqueue_head(&zd->rxdataq);
1753 INIT_HLIST_HEAD(&zd->fraglist);
1754
1755 err = zd1201_fw_upload(usb, zd->ap);
1756 if (err) {
1757 dev_err(&usb->dev, "zd1201 firmware upload failed: %d\n", err);
1758 goto err_zd;
1759 }
1760
1761 zd->endp_in = 1;
1762 zd->endp_out = 1;
1763 zd->endp_out2 = 2;
1764 zd->rx_urb = usb_alloc_urb(0, GFP_KERNEL);
1765 zd->tx_urb = usb_alloc_urb(0, GFP_KERNEL);
1766 if (!zd->rx_urb || !zd->tx_urb)
1767 goto err_zd;
1768
1769 mdelay(100);
1770 err = zd1201_drvr_start(zd);
1771 if (err)
1772 goto err_zd;
1773
1774 err = zd1201_setconfig16(zd, ZD1201_RID_CNFMAXDATALEN, 2312);
1775 if (err)
1776 goto err_start;
1777
1778 err = zd1201_setconfig16(zd, ZD1201_RID_TXRATECNTL,
1779 ZD1201_RATEB1 | ZD1201_RATEB2 | ZD1201_RATEB5 | ZD1201_RATEB11);
1780 if (err)
1781 goto err_start;
1782
1783 dev->open = zd1201_net_open;
1784 dev->stop = zd1201_net_stop;
1785 dev->get_stats = zd1201_get_stats;
1786 dev->wireless_handlers =
1787 (struct iw_handler_def *)&zd1201_iw_handlers;
1788 dev->hard_start_xmit = zd1201_hard_start_xmit;
1789 dev->watchdog_timeo = ZD1201_TX_TIMEOUT;
1790 dev->tx_timeout = zd1201_tx_timeout;
1791 dev->set_multicast_list = zd1201_set_multicast;
1792 dev->set_mac_address = zd1201_set_mac_address;
1793 strcpy(dev->name, "wlan%d");
1794
1795 err = zd1201_getconfig(zd, ZD1201_RID_CNFOWNMACADDR,
1796 dev->dev_addr, dev->addr_len);
1797 if (err)
1798 goto err_start;
1799
1800 /* Set wildcard essid to match zd->essid */
1801 *(__le16 *)buf = cpu_to_le16(0);
1802 err = zd1201_setconfig(zd, ZD1201_RID_CNFDESIREDSSID, buf,
1803 IW_ESSID_MAX_SIZE+2, 1);
1804 if (err)
1805 goto err_start;
1806
1807 if (zd->ap)
1808 porttype = ZD1201_PORTTYPE_AP;
1809 else
1810 porttype = ZD1201_PORTTYPE_BSS;
1811 err = zd1201_setconfig16(zd, ZD1201_RID_CNFPORTTYPE, porttype);
1812 if (err)
1813 goto err_start;
1814
1815 SET_NETDEV_DEV(dev, &usb->dev);
1816
1817 err = register_netdev(dev);
1818 if (err)
1819 goto err_start;
1820 dev_info(&usb->dev, "%s: ZD1201 USB Wireless interface\n",
1821 dev->name);
1822
1823 usb_set_intfdata(interface, zd);
1824 zd1201_enable(zd); /* zd1201 likes to startup enabled, */
1825 zd1201_disable(zd); /* interfering with all the wifis in range */
1826 return 0;
1827
1828 err_start:
1829 /* Leave the device in reset state */
1830 zd1201_docmd(zd, ZD1201_CMDCODE_INIT, 0, 0, 0);
1831 err_zd:
1832 usb_free_urb(zd->tx_urb);
1833 usb_free_urb(zd->rx_urb);
1834 free_netdev(dev);
1835 return err;
1836 }
1837
1838 static void zd1201_disconnect(struct usb_interface *interface)
1839 {
1840 struct zd1201 *zd=(struct zd1201 *)usb_get_intfdata(interface);
1841 struct hlist_node *node, *node2;
1842 struct zd1201_frag *frag;
1843
1844 if (!zd)
1845 return;
1846 usb_set_intfdata(interface, NULL);
1847
1848 hlist_for_each_entry_safe(frag, node, node2, &zd->fraglist, fnode) {
1849 hlist_del_init(&frag->fnode);
1850 kfree_skb(frag->skb);
1851 kfree(frag);
1852 }
1853
1854 if (zd->tx_urb) {
1855 usb_kill_urb(zd->tx_urb);
1856 usb_free_urb(zd->tx_urb);
1857 }
1858 if (zd->rx_urb) {
1859 usb_kill_urb(zd->rx_urb);
1860 usb_free_urb(zd->rx_urb);
1861 }
1862
1863 if (zd->dev) {
1864 unregister_netdev(zd->dev);
1865 free_netdev(zd->dev);
1866 }
1867 }
1868
1869 #ifdef CONFIG_PM
1870
1871 static int zd1201_suspend(struct usb_interface *interface,
1872 pm_message_t message)
1873 {
1874 struct zd1201 *zd = usb_get_intfdata(interface);
1875
1876 netif_device_detach(zd->dev);
1877
1878 zd->was_enabled = zd->mac_enabled;
1879
1880 if (zd->was_enabled)
1881 return zd1201_disable(zd);
1882 else
1883 return 0;
1884 }
1885
1886 static int zd1201_resume(struct usb_interface *interface)
1887 {
1888 struct zd1201 *zd = usb_get_intfdata(interface);
1889
1890 if (!zd || !zd->dev)
1891 return -ENODEV;
1892
1893 netif_device_attach(zd->dev);
1894
1895 if (zd->was_enabled)
1896 return zd1201_enable(zd);
1897 else
1898 return 0;
1899 }
1900
1901 #else
1902
1903 #define zd1201_suspend NULL
1904 #define zd1201_resume NULL
1905
1906 #endif
1907
1908 static struct usb_driver zd1201_usb = {
1909 .name = "zd1201",
1910 .probe = zd1201_probe,
1911 .disconnect = zd1201_disconnect,
1912 .id_table = zd1201_table,
1913 .suspend = zd1201_suspend,
1914 .resume = zd1201_resume,
1915 };
1916
1917 static int __init zd1201_init(void)
1918 {
1919 return usb_register(&zd1201_usb);
1920 }
1921
1922 static void __exit zd1201_cleanup(void)
1923 {
1924 usb_deregister(&zd1201_usb);
1925 }
1926
1927 module_init(zd1201_init);
1928 module_exit(zd1201_cleanup);
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