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Linux v2.6.13
[linux-2.6/next.git] / drivers / usb / net / zd1201.c
blobe32a80b39182b5dbbc06d15b2f96abf1897f9e7f
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 <ieee802_11.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 & IEEE802_11_SCTL_FRAG) ||
342 (fc & IEEE802_11_FCTL_MOREFRAGS)) {
343 struct zd1201_frag *frag = NULL;
344 char *ptr;
345
346 if (datalen<14)
347 goto resubmit;
348 if ((seq & IEEE802_11_SCTL_FRAG) == 0) {
349 frag = kmalloc(sizeof(*frag), GFP_ATOMIC);
350 if (!frag)
351 goto resubmit;
352 skb = dev_alloc_skb(IEEE802_11_DATA_LEN +14+2);
353 if (!skb) {
354 kfree(frag);
355 goto resubmit;
356 }
357 frag->skb = skb;
358 frag->seq = seq & IEEE802_11_SCTL_SEQ;
359 skb_reserve(skb, 2);
360 memcpy(skb_put(skb, 12), &data[datalen-14], 12);
361 memcpy(skb_put(skb, 2), &data[6], 2);
362 memcpy(skb_put(skb, len), data+8, len);
363 hlist_add_head(&frag->fnode, &zd->fraglist);
364 goto resubmit;
365 }
366 hlist_for_each_entry(frag, node, &zd->fraglist, fnode)
367 if(frag->seq == (seq&IEEE802_11_SCTL_SEQ))
368 break;
369 if (!frag)
370 goto resubmit;
371 skb = frag->skb;
372 ptr = skb_put(skb, len);
373 if (ptr)
374 memcpy(ptr, data+8, len);
375 if (fc & IEEE802_11_FCTL_MOREFRAGS)
376 goto resubmit;
377 hlist_del_init(&frag->fnode);
378 kfree(frag);
379 /* Fallthrough */
380 } else {
381 if (datalen<14)
382 goto resubmit;
383 skb = dev_alloc_skb(len + 14 + 2);
384 if (!skb)
385 goto resubmit;
386 skb_reserve(skb, 2);
387 memcpy(skb_put(skb, 12), &data[datalen-14], 12);
388 memcpy(skb_put(skb, 2), &data[6], 2);
389 memcpy(skb_put(skb, len), data+8, len);
390 }
391 skb->dev = zd->dev;
392 skb->dev->last_rx = jiffies;
393 skb->protocol = eth_type_trans(skb, zd->dev);
394 zd->stats.rx_packets++;
395 zd->stats.rx_bytes += skb->len;
396 netif_rx(skb);
397 }
398 resubmit:
399 memset(data, 0, ZD1201_RXSIZE);
400
401 urb->status = 0;
402 urb->dev = zd->usb;
403 if(usb_submit_urb(urb, GFP_ATOMIC))
404 free = 1;
405
406 exit:
407 if (free) {
408 zd->rxlen = 0;
409 zd->rxdatas = 1;
410 wake_up(&zd->rxdataq);
411 kfree(urb->transfer_buffer);
412 }
413 return;
414 }
415
416 static int zd1201_getconfig(struct zd1201 *zd, int rid, void *riddata,
417 unsigned int riddatalen)
418 {
419 int err;
420 int i = 0;
421 int code;
422 int rid_fid;
423 int length;
424 unsigned char *pdata;
425
426 zd->rxdatas = 0;
427 err = zd1201_docmd(zd, ZD1201_CMDCODE_ACCESS, rid, 0, 0);
428 if (err)
429 return err;
430
431 wait_event_interruptible(zd->rxdataq, zd->rxdatas);
432 if (!zd->rxlen)
433 return -EIO;
434
435 code = le16_to_cpu(*(__le16*)(&zd->rxdata[4]));
436 rid_fid = le16_to_cpu(*(__le16*)(&zd->rxdata[6]));
437 length = le16_to_cpu(*(__le16*)(&zd->rxdata[8]));
438 if (length > zd->rxlen)
439 length = zd->rxlen-6;
440
441 /* If access bit is not on, then error */
442 if ((code & ZD1201_ACCESSBIT) != ZD1201_ACCESSBIT || rid_fid != rid )
443 return -EINVAL;
444
445 /* Not enough buffer for allocating data */
446 if (riddatalen != (length - 4)) {
447 dev_dbg(&zd->usb->dev, "riddatalen mismatches, expected=%u, (packet=%u) length=%u, rid=0x%04X, rid_fid=0x%04X\n",
448 riddatalen, zd->rxlen, length, rid, rid_fid);
449 return -ENODATA;
450 }
451
452 zd->rxdatas = 0;
453 /* Issue SetRxRid commnd */
454 err = zd1201_docmd(zd, ZD1201_CMDCODE_SETRXRID, rid, 0, length);
455 if (err)
456 return err;
457
458 /* Receive RID record from resource packets */
459 wait_event_interruptible(zd->rxdataq, zd->rxdatas);
460 if (!zd->rxlen)
461 return -EIO;
462
463 if (zd->rxdata[zd->rxlen - 1] != ZD1201_PACKET_RESOURCE) {
464 dev_dbg(&zd->usb->dev, "Packet type mismatch: 0x%x not 0x3\n",
465 zd->rxdata[zd->rxlen-1]);
466 return -EINVAL;
467 }
468
469 /* Set the data pointer and received data length */
470 pdata = zd->rxdata;
471 length = zd->rxlen;
472
473 do {
474 int actual_length;
475
476 actual_length = (length > 64) ? 64 : length;
477
478 if(pdata[0] != 0x3) {
479 dev_dbg(&zd->usb->dev, "Rx Resource packet type error: %02X\n",
480 pdata[0]);
481 return -EINVAL;
482 }
483
484 if (actual_length != 64) {
485 /* Trim the last packet type byte */
486 actual_length--;
487 }
488
489 /* Skip the 4 bytes header (RID length and RID) */
490 if(i == 0) {
491 pdata += 8;
492 actual_length -= 8;
493 }
494 else {
495 pdata += 4;
496 actual_length -= 4;
497 }
498
499 memcpy(riddata, pdata, actual_length);
500 riddata += actual_length;
501 pdata += actual_length;
502 length -= 64;
503 i++;
504 } while (length > 0);
505
506 return 0;
507 }
508
509 /*
510 * resreq:
511 * byte type
512 * byte sequence
513 * u16 reserved
514 * byte data[12]
515 * total: 16
516 */
517 static int zd1201_setconfig(struct zd1201 *zd, int rid, void *buf, int len, int wait)
518 {
519 int err;
520 unsigned char *request;
521 int reqlen;
522 char seq=0;
523 struct urb *urb;
524 unsigned int gfp_mask = wait ? GFP_NOIO : GFP_ATOMIC;
525
526 len += 4; /* first 4 are for header */
527
528 zd->rxdatas = 0;
529 zd->rxlen = 0;
530 for (seq=0; len > 0; seq++) {
531 request = kmalloc(16, gfp_mask);
532 if (!request)
533 return -ENOMEM;
534 urb = usb_alloc_urb(0, gfp_mask);
535 if (!urb) {
536 kfree(request);
537 return -ENOMEM;
538 }
539 memset(request, 0, 16);
540 reqlen = len>12 ? 12 : len;
541 request[0] = ZD1201_USB_RESREQ;
542 request[1] = seq;
543 request[2] = 0;
544 request[3] = 0;
545 if (request[1] == 0) {
546 /* add header */
547 *(__le16*)&request[4] = cpu_to_le16((len-2+1)/2);
548 *(__le16*)&request[6] = cpu_to_le16(rid);
549 memcpy(request+8, buf, reqlen-4);
550 buf += reqlen-4;
551 } else {
552 memcpy(request+4, buf, reqlen);
553 buf += reqlen;
554 }
555
556 len -= reqlen;
557
558 usb_fill_bulk_urb(urb, zd->usb, usb_sndbulkpipe(zd->usb,
559 zd->endp_out2), request, 16, zd1201_usbfree, zd);
560 err = usb_submit_urb(urb, gfp_mask);
561 if (err)
562 goto err;
563 }
564
565 request = kmalloc(16, gfp_mask);
566 if (!request)
567 return -ENOMEM;
568 urb = usb_alloc_urb(0, gfp_mask);
569 if (!urb) {
570 kfree(request);
571 return -ENOMEM;
572 }
573 *((__le32*)request) = cpu_to_le32(ZD1201_USB_CMDREQ);
574 *((__le16*)&request[4]) =
575 cpu_to_le16(ZD1201_CMDCODE_ACCESS|ZD1201_ACCESSBIT);
576 *((__le16*)&request[6]) = cpu_to_le16(rid);
577 *((__le16*)&request[8]) = cpu_to_le16(0);
578 *((__le16*)&request[10]) = cpu_to_le16(0);
579 usb_fill_bulk_urb(urb, zd->usb, usb_sndbulkpipe(zd->usb, zd->endp_out2),
580 request, 16, zd1201_usbfree, zd);
581 err = usb_submit_urb(urb, gfp_mask);
582 if (err)
583 goto err;
584
585 if (wait) {
586 wait_event_interruptible(zd->rxdataq, zd->rxdatas);
587 if (!zd->rxlen || le16_to_cpu(*(__le16*)&zd->rxdata[6]) != rid) {
588 dev_dbg(&zd->usb->dev, "wrong or no RID received\n");
589 }
590 }
591
592 return 0;
593 err:
594 kfree(request);
595 usb_free_urb(urb);
596 return err;
597 }
598
599 static inline int zd1201_getconfig16(struct zd1201 *zd, int rid, short *val)
600 {
601 int err;
602 __le16 zdval;
603
604 err = zd1201_getconfig(zd, rid, &zdval, sizeof(__le16));
605 if (err)
606 return err;
607 *val = le16_to_cpu(zdval);
608 return 0;
609 }
610
611 static inline int zd1201_setconfig16(struct zd1201 *zd, int rid, short val)
612 {
613 __le16 zdval = cpu_to_le16(val);
614 return (zd1201_setconfig(zd, rid, &zdval, sizeof(__le16), 1));
615 }
616
617 static int zd1201_drvr_start(struct zd1201 *zd)
618 {
619 int err, i;
620 short max;
621 __le16 zdmax;
622 unsigned char *buffer;
623
624 buffer = kmalloc(ZD1201_RXSIZE, GFP_KERNEL);
625 if (!buffer)
626 return -ENOMEM;
627 memset(buffer, 0, ZD1201_RXSIZE);
628
629 usb_fill_bulk_urb(zd->rx_urb, zd->usb,
630 usb_rcvbulkpipe(zd->usb, zd->endp_in), buffer, ZD1201_RXSIZE,
631 zd1201_usbrx, zd);
632
633 err = usb_submit_urb(zd->rx_urb, GFP_KERNEL);
634 if (err)
635 goto err_buffer;
636
637 err = zd1201_docmd(zd, ZD1201_CMDCODE_INIT, 0, 0, 0);
638 if (err)
639 goto err_urb;
640
641 err = zd1201_getconfig(zd, ZD1201_RID_CNFMAXTXBUFFERNUMBER, &zdmax,
642 sizeof(__le16));
643 if (err)
644 goto err_urb;
645
646 max = le16_to_cpu(zdmax);
647 for (i=0; i<max; i++) {
648 err = zd1201_docmd(zd, ZD1201_CMDCODE_ALLOC, 1514, 0, 0);
649 if (err)
650 goto err_urb;
651 }
652
653 return 0;
654
655 err_urb:
656 usb_kill_urb(zd->rx_urb);
657 return err;
658 err_buffer:
659 kfree(buffer);
660 return err;
661 }
662
663 /* Magic alert: The firmware doesn't seem to like the MAC state being
664 * toggled in promisc (aka monitor) mode.
665 * (It works a number of times, but will halt eventually)
666 * So we turn it of before disabling and on after enabling if needed.
667 */
668 static int zd1201_enable(struct zd1201 *zd)
669 {
670 int err;
671
672 if (zd->mac_enabled)
673 return 0;
674
675 err = zd1201_docmd(zd, ZD1201_CMDCODE_ENABLE, 0, 0, 0);
676 if (!err)
677 zd->mac_enabled = 1;
678
679 if (zd->monitor)
680 err = zd1201_setconfig16(zd, ZD1201_RID_PROMISCUOUSMODE, 1);
681
682 return err;
683 }
684
685 static int zd1201_disable(struct zd1201 *zd)
686 {
687 int err;
688
689 if (!zd->mac_enabled)
690 return 0;
691 if (zd->monitor) {
692 err = zd1201_setconfig16(zd, ZD1201_RID_PROMISCUOUSMODE, 0);
693 if (err)
694 return err;
695 }
696
697 err = zd1201_docmd(zd, ZD1201_CMDCODE_DISABLE, 0, 0, 0);
698 if (!err)
699 zd->mac_enabled = 0;
700 return err;
701 }
702
703 static int zd1201_mac_reset(struct zd1201 *zd)
704 {
705 if (!zd->mac_enabled)
706 return 0;
707 zd1201_disable(zd);
708 return zd1201_enable(zd);
709 }
710
711 static int zd1201_join(struct zd1201 *zd, char *essid, int essidlen)
712 {
713 int err, val;
714 char buf[IW_ESSID_MAX_SIZE+2];
715
716 err = zd1201_disable(zd);
717 if (err)
718 return err;
719
720 val = ZD1201_CNFAUTHENTICATION_OPENSYSTEM;
721 val |= ZD1201_CNFAUTHENTICATION_SHAREDKEY;
722 err = zd1201_setconfig16(zd, ZD1201_RID_CNFAUTHENTICATION, val);
723 if (err)
724 return err;
725
726 *(__le16 *)buf = cpu_to_le16(essidlen);
727 memcpy(buf+2, essid, essidlen);
728 if (!zd->ap) { /* Normal station */
729 err = zd1201_setconfig(zd, ZD1201_RID_CNFDESIREDSSID, buf,
730 IW_ESSID_MAX_SIZE+2, 1);
731 if (err)
732 return err;
733 } else { /* AP */
734 err = zd1201_setconfig(zd, ZD1201_RID_CNFOWNSSID, buf,
735 IW_ESSID_MAX_SIZE+2, 1);
736 if (err)
737 return err;
738 }
739
740 err = zd1201_setconfig(zd, ZD1201_RID_CNFOWNMACADDR,
741 zd->dev->dev_addr, zd->dev->addr_len, 1);
742 if (err)
743 return err;
744
745 err = zd1201_enable(zd);
746 if (err)
747 return err;
748
749 msleep(100);
750 return 0;
751 }
752
753 static int zd1201_net_open(struct net_device *dev)
754 {
755 struct zd1201 *zd = (struct zd1201 *)dev->priv;
756
757 /* Start MAC with wildcard if no essid set */
758 if (!zd->mac_enabled)
759 zd1201_join(zd, zd->essid, zd->essidlen);
760 netif_start_queue(dev);
761
762 return 0;
763 }
764
765 static int zd1201_net_stop(struct net_device *dev)
766 {
767 netif_stop_queue(dev);
768
769 return 0;
770 }
771
772 /*
773 RFC 1042 encapsulates Ethernet frames in 802.11 frames
774 by prefixing them with 0xaa, 0xaa, 0x03) followed by a SNAP OID of 0
775 (0x00, 0x00, 0x00). Zd requires an additional padding, copy
776 of ethernet addresses, length of the standard RFC 1042 packet
777 and a command byte (which is nul for tx).
778
779 tx frame (from Wlan NG):
780 RFC 1042:
781 llc 0xAA 0xAA 0x03 (802.2 LLC)
782 snap 0x00 0x00 0x00 (Ethernet encapsulated)
783 type 2 bytes, Ethernet type field
784 payload (minus eth header)
785 Zydas specific:
786 padding 1B if (skb->len+8+1)%64==0
787 Eth MAC addr 12 bytes, Ethernet MAC addresses
788 length 2 bytes, RFC 1042 packet length
789 (llc+snap+type+payload)
790 zd 1 null byte, zd1201 packet type
791 */
792 static int zd1201_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
793 {
794 struct zd1201 *zd = (struct zd1201 *)dev->priv;
795 unsigned char *txbuf = zd->txdata;
796 int txbuflen, pad = 0, err;
797 struct urb *urb = zd->tx_urb;
798
799 if (!zd->mac_enabled || zd->monitor) {
800 zd->stats.tx_dropped++;
801 kfree_skb(skb);
802 return 0;
803 }
804 netif_stop_queue(dev);
805
806 txbuflen = skb->len + 8 + 1;
807 if (txbuflen%64 == 0) {
808 pad = 1;
809 txbuflen++;
810 }
811 txbuf[0] = 0xAA;
812 txbuf[1] = 0xAA;
813 txbuf[2] = 0x03;
814 txbuf[3] = 0x00; /* rfc1042 */
815 txbuf[4] = 0x00;
816 txbuf[5] = 0x00;
817
818 memcpy(txbuf+6, skb->data+12, skb->len-12);
819 if (pad)
820 txbuf[skb->len-12+6]=0;
821 memcpy(txbuf+skb->len-12+6+pad, skb->data, 12);
822 *(__be16*)&txbuf[skb->len+6+pad] = htons(skb->len-12+6);
823 txbuf[txbuflen-1] = 0;
824
825 usb_fill_bulk_urb(urb, zd->usb, usb_sndbulkpipe(zd->usb, zd->endp_out),
826 txbuf, txbuflen, zd1201_usbtx, zd);
827
828 err = usb_submit_urb(zd->tx_urb, GFP_ATOMIC);
829 if (err) {
830 zd->stats.tx_errors++;
831 netif_start_queue(dev);
832 return err;
833 }
834 zd->stats.tx_packets++;
835 zd->stats.tx_bytes += skb->len;
836 dev->trans_start = jiffies;
837 kfree_skb(skb);
838
839 return 0;
840 }
841
842 static void zd1201_tx_timeout(struct net_device *dev)
843 {
844 struct zd1201 *zd = (struct zd1201 *)dev->priv;
845
846 if (!zd)
847 return;
848 dev_warn(&zd->usb->dev, "%s: TX timeout, shooting down urb\n",
849 dev->name);
850 zd->tx_urb->transfer_flags |= URB_ASYNC_UNLINK;
851 usb_unlink_urb(zd->tx_urb);
852 zd->stats.tx_errors++;
853 /* Restart the timeout to quiet the watchdog: */
854 dev->trans_start = jiffies;
855 }
856
857 static int zd1201_set_mac_address(struct net_device *dev, void *p)
858 {
859 struct sockaddr *addr = p;
860 struct zd1201 *zd = (struct zd1201 *)dev->priv;
861 int err;
862
863 if (!zd)
864 return -ENODEV;
865
866 err = zd1201_setconfig(zd, ZD1201_RID_CNFOWNMACADDR,
867 addr->sa_data, dev->addr_len, 1);
868 if (err)
869 return err;
870 memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
871
872 return zd1201_mac_reset(zd);
873 }
874
875 static struct net_device_stats *zd1201_get_stats(struct net_device *dev)
876 {
877 struct zd1201 *zd = (struct zd1201 *)dev->priv;
878
879 return &zd->stats;
880 }
881
882 static struct iw_statistics *zd1201_get_wireless_stats(struct net_device *dev)
883 {
884 struct zd1201 *zd = (struct zd1201 *)dev->priv;
885
886 return &zd->iwstats;
887 }
888
889 static void zd1201_set_multicast(struct net_device *dev)
890 {
891 struct zd1201 *zd = (struct zd1201 *)dev->priv;
892 struct dev_mc_list *mc = dev->mc_list;
893 unsigned char reqbuf[ETH_ALEN*ZD1201_MAXMULTI];
894 int i;
895
896 if (dev->mc_count > ZD1201_MAXMULTI)
897 return;
898
899 for (i=0; i<dev->mc_count; i++) {
900 memcpy(reqbuf+i*ETH_ALEN, mc->dmi_addr, ETH_ALEN);
901 mc = mc->next;
902 }
903 zd1201_setconfig(zd, ZD1201_RID_CNFGROUPADDRESS, reqbuf,
904 dev->mc_count*ETH_ALEN, 0);
905
906 }
907
908 static int zd1201_config_commit(struct net_device *dev,
909 struct iw_request_info *info, struct iw_point *data, char *essid)
910 {
911 struct zd1201 *zd = (struct zd1201 *)dev->priv;
912
913 return zd1201_mac_reset(zd);
914 }
915
916 static int zd1201_get_name(struct net_device *dev,
917 struct iw_request_info *info, char *name, char *extra)
918 {
919 strcpy(name, "IEEE 802.11b");
920
921 return 0;
922 }
923
924 static int zd1201_set_freq(struct net_device *dev,
925 struct iw_request_info *info, struct iw_freq *freq, char *extra)
926 {
927 struct zd1201 *zd = (struct zd1201 *)dev->priv;
928 short channel = 0;
929 int err;
930
931 if (freq->e == 0)
932 channel = freq->m;
933 else {
934 if (freq->m >= 2482)
935 channel = 14;
936 if (freq->m >= 2407)
937 channel = (freq->m-2407)/5;
938 }
939
940 err = zd1201_setconfig16(zd, ZD1201_RID_CNFOWNCHANNEL, channel);
941 if (err)
942 return err;
943
944 zd1201_mac_reset(zd);
945
946 return 0;
947 }
948
949 static int zd1201_get_freq(struct net_device *dev,
950 struct iw_request_info *info, struct iw_freq *freq, char *extra)
951 {
952 struct zd1201 *zd = (struct zd1201 *)dev->priv;
953 short channel;
954 int err;
955
956 err = zd1201_getconfig16(zd, ZD1201_RID_CNFOWNCHANNEL, &channel);
957 if (err)
958 return err;
959 freq->e = 0;
960 freq->m = channel;
961
962 return 0;
963 }
964
965 static int zd1201_set_mode(struct net_device *dev,
966 struct iw_request_info *info, __u32 *mode, char *extra)
967 {
968 struct zd1201 *zd = (struct zd1201 *)dev->priv;
969 short porttype, monitor = 0;
970 unsigned char buffer[IW_ESSID_MAX_SIZE+2];
971 int err;
972
973 if (zd->ap) {
974 if (*mode != IW_MODE_MASTER)
975 return -EINVAL;
976 return 0;
977 }
978
979 err = zd1201_setconfig16(zd, ZD1201_RID_PROMISCUOUSMODE, 0);
980 if (err)
981 return err;
982 zd->dev->type = ARPHRD_ETHER;
983 switch(*mode) {
984 case IW_MODE_MONITOR:
985 monitor = 1;
986 zd->dev->type = ARPHRD_IEEE80211;
987 /* Make sure we are no longer associated with by
988 setting an 'impossible' essid.
989 (otherwise we mess up firmware)
990 */
991 zd1201_join(zd, "\0-*#\0", 5);
992 /* Put port in pIBSS */
993 case 8: /* No pseudo-IBSS in wireless extensions (yet) */
994 porttype = ZD1201_PORTTYPE_PSEUDOIBSS;
995 break;
996 case IW_MODE_ADHOC:
997 porttype = ZD1201_PORTTYPE_IBSS;
998 break;
999 case IW_MODE_INFRA:
1000 porttype = ZD1201_PORTTYPE_BSS;
1001 break;
1002 default:
1003 return -EINVAL;
1004 }
1005
1006 err = zd1201_setconfig16(zd, ZD1201_RID_CNFPORTTYPE, porttype);
1007 if (err)
1008 return err;
1009 if (zd->monitor && !monitor) {
1010 zd1201_disable(zd);
1011 *(__le16 *)buffer = cpu_to_le16(zd->essidlen);
1012 memcpy(buffer+2, zd->essid, zd->essidlen);
1013 err = zd1201_setconfig(zd, ZD1201_RID_CNFDESIREDSSID,
1014 buffer, IW_ESSID_MAX_SIZE+2, 1);
1015 if (err)
1016 return err;
1017 }
1018 zd->monitor=monitor;
1019 /* If monitor mode is set we don't actually turn it on here since it
1020 * is done during mac reset anyway (see zd1201_mac_enable).
1021 */
1022
1023 zd1201_mac_reset(zd);
1024
1025 return 0;
1026 }
1027
1028 static int zd1201_get_mode(struct net_device *dev,
1029 struct iw_request_info *info, __u32 *mode, char *extra)
1030 {
1031 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1032 short porttype;
1033 int err;
1034
1035 err = zd1201_getconfig16(zd, ZD1201_RID_CNFPORTTYPE, &porttype);
1036 if (err)
1037 return err;
1038 switch(porttype) {
1039 case ZD1201_PORTTYPE_IBSS:
1040 *mode = IW_MODE_ADHOC;
1041 break;
1042 case ZD1201_PORTTYPE_BSS:
1043 *mode = IW_MODE_INFRA;
1044 break;
1045 case ZD1201_PORTTYPE_WDS:
1046 *mode = IW_MODE_REPEAT;
1047 break;
1048 case ZD1201_PORTTYPE_PSEUDOIBSS:
1049 *mode = 8;/* No Pseudo-IBSS... */
1050 break;
1051 case ZD1201_PORTTYPE_AP:
1052 *mode = IW_MODE_MASTER;
1053 break;
1054 default:
1055 dev_dbg(&zd->usb->dev, "Unknown porttype: %d\n",
1056 porttype);
1057 *mode = IW_MODE_AUTO;
1058 }
1059 if (zd->monitor)
1060 *mode = IW_MODE_MONITOR;
1061
1062 return 0;
1063 }
1064
1065 static int zd1201_get_range(struct net_device *dev,
1066 struct iw_request_info *info, struct iw_point *wrq, char *extra)
1067 {
1068 struct iw_range *range = (struct iw_range *)extra;
1069
1070 wrq->length = sizeof(struct iw_range);
1071 memset(range, 0, sizeof(struct iw_range));
1072 range->we_version_compiled = WIRELESS_EXT;
1073 range->we_version_source = WIRELESS_EXT;
1074
1075 range->max_qual.qual = 128;
1076 range->max_qual.level = 128;
1077 range->max_qual.noise = 128;
1078 range->max_qual.updated = 7;
1079
1080 range->encoding_size[0] = 5;
1081 range->encoding_size[1] = 13;
1082 range->num_encoding_sizes = 2;
1083 range->max_encoding_tokens = ZD1201_NUMKEYS;
1084
1085 range->num_bitrates = 4;
1086 range->bitrate[0] = 1000000;
1087 range->bitrate[1] = 2000000;
1088 range->bitrate[2] = 5500000;
1089 range->bitrate[3] = 11000000;
1090
1091 range->min_rts = 0;
1092 range->min_frag = ZD1201_FRAGMIN;
1093 range->max_rts = ZD1201_RTSMAX;
1094 range->min_frag = ZD1201_FRAGMAX;
1095
1096 return 0;
1097 }
1098
1099 /* Little bit of magic here: we only get the quality if we poll
1100 * for it, and we never get an actual request to trigger such
1101 * a poll. Therefore we 'assume' that the user will soon ask for
1102 * the stats after asking the bssid.
1103 */
1104 static int zd1201_get_wap(struct net_device *dev,
1105 struct iw_request_info *info, struct sockaddr *ap_addr, char *extra)
1106 {
1107 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1108 unsigned char buffer[6];
1109
1110 if (!zd1201_getconfig(zd, ZD1201_RID_COMMSQUALITY, buffer, 6)) {
1111 /* Unfortunately the quality and noise reported is useless.
1112 they seem to be accumulators that increase until you
1113 read them, unless we poll on a fixed interval we can't
1114 use them
1115 */
1116 /*zd->iwstats.qual.qual = le16_to_cpu(((__le16 *)buffer)[0]);*/
1117 zd->iwstats.qual.level = le16_to_cpu(((__le16 *)buffer)[1]);
1118 /*zd->iwstats.qual.noise = le16_to_cpu(((__le16 *)buffer)[2]);*/
1119 zd->iwstats.qual.updated = 2;
1120 }
1121
1122 return zd1201_getconfig(zd,ZD1201_RID_CURRENTBSSID,ap_addr->sa_data,6);
1123 }
1124
1125 static int zd1201_set_scan(struct net_device *dev,
1126 struct iw_request_info *info, struct iw_point *srq, char *extra)
1127 {
1128 /* We do everything in get_scan */
1129 return 0;
1130 }
1131
1132 static int zd1201_get_scan(struct net_device *dev,
1133 struct iw_request_info *info, struct iw_point *srq, char *extra)
1134 {
1135 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1136 int err, i, j, enabled_save;
1137 struct iw_event iwe;
1138 char *cev = extra;
1139 char *end_buf = extra + IW_SCAN_MAX_DATA;
1140
1141 /* No scanning in AP mode */
1142 if (zd->ap)
1143 return -EOPNOTSUPP;
1144
1145 /* Scan doesn't seem to work if disabled */
1146 enabled_save = zd->mac_enabled;
1147 zd1201_enable(zd);
1148
1149 zd->rxdatas = 0;
1150 err = zd1201_docmd(zd, ZD1201_CMDCODE_INQUIRE,
1151 ZD1201_INQ_SCANRESULTS, 0, 0);
1152 if (err)
1153 return err;
1154
1155 wait_event_interruptible(zd->rxdataq, zd->rxdatas);
1156 if (!zd->rxlen)
1157 return -EIO;
1158
1159 if (le16_to_cpu(*(__le16*)&zd->rxdata[2]) != ZD1201_INQ_SCANRESULTS)
1160 return -EIO;
1161
1162 for(i=8; i<zd->rxlen; i+=62) {
1163 iwe.cmd = SIOCGIWAP;
1164 iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
1165 memcpy(iwe.u.ap_addr.sa_data, zd->rxdata+i+6, 6);
1166 cev = iwe_stream_add_event(cev, end_buf, &iwe, IW_EV_ADDR_LEN);
1167
1168 iwe.cmd = SIOCGIWESSID;
1169 iwe.u.data.length = zd->rxdata[i+16];
1170 iwe.u.data.flags = 1;
1171 cev = iwe_stream_add_point(cev, end_buf, &iwe, zd->rxdata+i+18);
1172
1173 iwe.cmd = SIOCGIWMODE;
1174 if (zd->rxdata[i+14]&0x01)
1175 iwe.u.mode = IW_MODE_MASTER;
1176 else
1177 iwe.u.mode = IW_MODE_ADHOC;
1178 cev = iwe_stream_add_event(cev, end_buf, &iwe, IW_EV_UINT_LEN);
1179
1180 iwe.cmd = SIOCGIWFREQ;
1181 iwe.u.freq.m = zd->rxdata[i+0];
1182 iwe.u.freq.e = 0;
1183 cev = iwe_stream_add_event(cev, end_buf, &iwe, IW_EV_FREQ_LEN);
1184
1185 iwe.cmd = SIOCGIWRATE;
1186 iwe.u.bitrate.fixed = 0;
1187 iwe.u.bitrate.disabled = 0;
1188 for (j=0; j<10; j++) if (zd->rxdata[i+50+j]) {
1189 iwe.u.bitrate.value = (zd->rxdata[i+50+j]&0x7f)*500000;
1190 cev=iwe_stream_add_event(cev, end_buf, &iwe,
1191 IW_EV_PARAM_LEN);
1192 }
1193
1194 iwe.cmd = SIOCGIWENCODE;
1195 iwe.u.data.length = 0;
1196 if (zd->rxdata[i+14]&0x10)
1197 iwe.u.data.flags = IW_ENCODE_ENABLED;
1198 else
1199 iwe.u.data.flags = IW_ENCODE_DISABLED;
1200 cev = iwe_stream_add_point(cev, end_buf, &iwe, NULL);
1201
1202 iwe.cmd = IWEVQUAL;
1203 iwe.u.qual.qual = zd->rxdata[i+4];
1204 iwe.u.qual.noise= zd->rxdata[i+2]/10-100;
1205 iwe.u.qual.level = (256+zd->rxdata[i+4]*100)/255-100;
1206 iwe.u.qual.updated = 7;
1207 cev = iwe_stream_add_event(cev, end_buf, &iwe, IW_EV_QUAL_LEN);
1208 }
1209
1210 if (!enabled_save)
1211 zd1201_disable(zd);
1212
1213 srq->length = cev - extra;
1214 srq->flags = 0;
1215
1216 return 0;
1217 }
1218
1219 static int zd1201_set_essid(struct net_device *dev,
1220 struct iw_request_info *info, struct iw_point *data, char *essid)
1221 {
1222 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1223
1224 if (data->length > IW_ESSID_MAX_SIZE)
1225 return -EINVAL;
1226 if (data->length < 1)
1227 data->length = 1;
1228 zd->essidlen = data->length-1;
1229 memset(zd->essid, 0, IW_ESSID_MAX_SIZE+1);
1230 memcpy(zd->essid, essid, data->length);
1231 return zd1201_join(zd, zd->essid, zd->essidlen);
1232 }
1233
1234 static int zd1201_get_essid(struct net_device *dev,
1235 struct iw_request_info *info, struct iw_point *data, char *essid)
1236 {
1237 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1238
1239 memcpy(essid, zd->essid, zd->essidlen);
1240 data->flags = 1;
1241 data->length = zd->essidlen;
1242
1243 return 0;
1244 }
1245
1246 static int zd1201_get_nick(struct net_device *dev, struct iw_request_info *info,
1247 struct iw_point *data, char *nick)
1248 {
1249 strcpy(nick, "zd1201");
1250 data->flags = 1;
1251 data->length = strlen(nick);
1252 return 0;
1253 }
1254
1255 static int zd1201_set_rate(struct net_device *dev,
1256 struct iw_request_info *info, struct iw_param *rrq, char *extra)
1257 {
1258 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1259 short rate;
1260 int err;
1261
1262 switch (rrq->value) {
1263 case 1000000:
1264 rate = ZD1201_RATEB1;
1265 break;
1266 case 2000000:
1267 rate = ZD1201_RATEB2;
1268 break;
1269 case 5500000:
1270 rate = ZD1201_RATEB5;
1271 break;
1272 case 11000000:
1273 default:
1274 rate = ZD1201_RATEB11;
1275 break;
1276 }
1277 if (!rrq->fixed) { /* Also enable all lower bitrates */
1278 rate |= rate-1;
1279 }
1280
1281 err = zd1201_setconfig16(zd, ZD1201_RID_TXRATECNTL, rate);
1282 if (err)
1283 return err;
1284
1285 return zd1201_mac_reset(zd);
1286 }
1287
1288 static int zd1201_get_rate(struct net_device *dev,
1289 struct iw_request_info *info, struct iw_param *rrq, char *extra)
1290 {
1291 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1292 short rate;
1293 int err;
1294
1295 err = zd1201_getconfig16(zd, ZD1201_RID_CURRENTTXRATE, &rate);
1296 if (err)
1297 return err;
1298
1299 switch(rate) {
1300 case 1:
1301 rrq->value = 1000000;
1302 break;
1303 case 2:
1304 rrq->value = 2000000;
1305 break;
1306 case 5:
1307 rrq->value = 5500000;
1308 break;
1309 case 11:
1310 rrq->value = 11000000;
1311 break;
1312 default:
1313 rrq->value = 0;
1314 }
1315 rrq->fixed = 0;
1316 rrq->disabled = 0;
1317
1318 return 0;
1319 }
1320
1321 static int zd1201_set_rts(struct net_device *dev, struct iw_request_info *info,
1322 struct iw_param *rts, char *extra)
1323 {
1324 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1325 int err;
1326 short val = rts->value;
1327
1328 if (rts->disabled || !rts->fixed)
1329 val = ZD1201_RTSMAX;
1330 if (val > ZD1201_RTSMAX)
1331 return -EINVAL;
1332 if (val < 0)
1333 return -EINVAL;
1334
1335 err = zd1201_setconfig16(zd, ZD1201_RID_CNFRTSTHRESHOLD, val);
1336 if (err)
1337 return err;
1338 return zd1201_mac_reset(zd);
1339 }
1340
1341 static int zd1201_get_rts(struct net_device *dev, struct iw_request_info *info,
1342 struct iw_param *rts, char *extra)
1343 {
1344 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1345 short rtst;
1346 int err;
1347
1348 err = zd1201_getconfig16(zd, ZD1201_RID_CNFRTSTHRESHOLD, &rtst);
1349 if (err)
1350 return err;
1351 rts->value = rtst;
1352 rts->disabled = (rts->value == ZD1201_RTSMAX);
1353 rts->fixed = 1;
1354
1355 return 0;
1356 }
1357
1358 static int zd1201_set_frag(struct net_device *dev, struct iw_request_info *info,
1359 struct iw_param *frag, char *extra)
1360 {
1361 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1362 int err;
1363 short val = frag->value;
1364
1365 if (frag->disabled || !frag->fixed)
1366 val = ZD1201_FRAGMAX;
1367 if (val > ZD1201_FRAGMAX)
1368 return -EINVAL;
1369 if (val < ZD1201_FRAGMIN)
1370 return -EINVAL;
1371 if (val & 1)
1372 return -EINVAL;
1373 err = zd1201_setconfig16(zd, ZD1201_RID_CNFFRAGTHRESHOLD, val);
1374 if (err)
1375 return err;
1376 return zd1201_mac_reset(zd);
1377 }
1378
1379 static int zd1201_get_frag(struct net_device *dev, struct iw_request_info *info,
1380 struct iw_param *frag, char *extra)
1381 {
1382 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1383 short fragt;
1384 int err;
1385
1386 err = zd1201_getconfig16(zd, ZD1201_RID_CNFFRAGTHRESHOLD, &fragt);
1387 if (err)
1388 return err;
1389 frag->value = fragt;
1390 frag->disabled = (frag->value == ZD1201_FRAGMAX);
1391 frag->fixed = 1;
1392
1393 return 0;
1394 }
1395
1396 static int zd1201_set_retry(struct net_device *dev,
1397 struct iw_request_info *info, struct iw_param *rrq, char *extra)
1398 {
1399 return 0;
1400 }
1401
1402 static int zd1201_get_retry(struct net_device *dev,
1403 struct iw_request_info *info, struct iw_param *rrq, char *extra)
1404 {
1405 return 0;
1406 }
1407
1408 static int zd1201_set_encode(struct net_device *dev,
1409 struct iw_request_info *info, struct iw_point *erq, char *key)
1410 {
1411 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1412 short i;
1413 int err, rid;
1414
1415 if (erq->length > ZD1201_MAXKEYLEN)
1416 return -EINVAL;
1417
1418 i = (erq->flags & IW_ENCODE_INDEX)-1;
1419 if (i == -1) {
1420 err = zd1201_getconfig16(zd,ZD1201_RID_CNFDEFAULTKEYID,&i);
1421 if (err)
1422 return err;
1423 } else {
1424 err = zd1201_setconfig16(zd, ZD1201_RID_CNFDEFAULTKEYID, i);
1425 if (err)
1426 return err;
1427 }
1428
1429 if (i < 0 || i >= ZD1201_NUMKEYS)
1430 return -EINVAL;
1431
1432 rid = ZD1201_RID_CNFDEFAULTKEY0 + i;
1433 err = zd1201_setconfig(zd, rid, key, erq->length, 1);
1434 if (err)
1435 return err;
1436 zd->encode_keylen[i] = erq->length;
1437 memcpy(zd->encode_keys[i], key, erq->length);
1438
1439 i=0;
1440 if (!(erq->flags & IW_ENCODE_DISABLED & IW_ENCODE_MODE)) {
1441 i |= 0x01;
1442 zd->encode_enabled = 1;
1443 } else
1444 zd->encode_enabled = 0;
1445 if (erq->flags & IW_ENCODE_RESTRICTED & IW_ENCODE_MODE) {
1446 i |= 0x02;
1447 zd->encode_restricted = 1;
1448 } else
1449 zd->encode_restricted = 0;
1450 err = zd1201_setconfig16(zd, ZD1201_RID_CNFWEBFLAGS, i);
1451 if (err)
1452 return err;
1453
1454 if (zd->encode_enabled)
1455 i = ZD1201_CNFAUTHENTICATION_SHAREDKEY;
1456 else
1457 i = ZD1201_CNFAUTHENTICATION_OPENSYSTEM;
1458 err = zd1201_setconfig16(zd, ZD1201_RID_CNFAUTHENTICATION, i);
1459 if (err)
1460 return err;
1461
1462 return zd1201_mac_reset(zd);
1463 }
1464
1465 static int zd1201_get_encode(struct net_device *dev,
1466 struct iw_request_info *info, struct iw_point *erq, char *key)
1467 {
1468 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1469 short i;
1470 int err;
1471
1472 if (zd->encode_enabled)
1473 erq->flags = IW_ENCODE_ENABLED;
1474 else
1475 erq->flags = IW_ENCODE_DISABLED;
1476 if (zd->encode_restricted)
1477 erq->flags |= IW_ENCODE_RESTRICTED;
1478 else
1479 erq->flags |= IW_ENCODE_OPEN;
1480
1481 i = (erq->flags & IW_ENCODE_INDEX) -1;
1482 if (i == -1) {
1483 err = zd1201_getconfig16(zd, ZD1201_RID_CNFDEFAULTKEYID, &i);
1484 if (err)
1485 return err;
1486 }
1487 if (i<0 || i>= ZD1201_NUMKEYS)
1488 return -EINVAL;
1489
1490 erq->flags |= i+1;
1491
1492 erq->length = zd->encode_keylen[i];
1493 memcpy(key, zd->encode_keys[i], erq->length);
1494
1495 return 0;
1496 }
1497
1498 static int zd1201_set_power(struct net_device *dev,
1499 struct iw_request_info *info, struct iw_param *vwrq, char *extra)
1500 {
1501 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1502 short enabled, duration, level;
1503 int err;
1504
1505 enabled = vwrq->disabled ? 0 : 1;
1506 if (enabled) {
1507 if (vwrq->flags & IW_POWER_PERIOD) {
1508 duration = vwrq->value;
1509 err = zd1201_setconfig16(zd,
1510 ZD1201_RID_CNFMAXSLEEPDURATION, duration);
1511 if (err)
1512 return err;
1513 goto out;
1514 }
1515 if (vwrq->flags & IW_POWER_TIMEOUT) {
1516 err = zd1201_getconfig16(zd,
1517 ZD1201_RID_CNFMAXSLEEPDURATION, &duration);
1518 if (err)
1519 return err;
1520 level = vwrq->value * 4 / duration;
1521 if (level > 4)
1522 level = 4;
1523 if (level < 0)
1524 level = 0;
1525 err = zd1201_setconfig16(zd, ZD1201_RID_CNFPMEPS,
1526 level);
1527 if (err)
1528 return err;
1529 goto out;
1530 }
1531 return -EINVAL;
1532 }
1533 out:
1534 err = zd1201_setconfig16(zd, ZD1201_RID_CNFPMENABLED, enabled);
1535 if (err)
1536 return err;
1537
1538 return 0;
1539 }
1540
1541 static int zd1201_get_power(struct net_device *dev,
1542 struct iw_request_info *info, struct iw_param *vwrq, char *extra)
1543 {
1544 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1545 short enabled, level, duration;
1546 int err;
1547
1548 err = zd1201_getconfig16(zd, ZD1201_RID_CNFPMENABLED, &enabled);
1549 if (err)
1550 return err;
1551 err = zd1201_getconfig16(zd, ZD1201_RID_CNFPMEPS, &level);
1552 if (err)
1553 return err;
1554 err = zd1201_getconfig16(zd, ZD1201_RID_CNFMAXSLEEPDURATION, &duration);
1555 if (err)
1556 return err;
1557 vwrq->disabled = enabled ? 0 : 1;
1558 if (vwrq->flags & IW_POWER_TYPE) {
1559 if (vwrq->flags & IW_POWER_PERIOD) {
1560 vwrq->value = duration;
1561 vwrq->flags = IW_POWER_PERIOD;
1562 } else {
1563 vwrq->value = duration * level / 4;
1564 vwrq->flags = IW_POWER_TIMEOUT;
1565 }
1566 }
1567 if (vwrq->flags & IW_POWER_MODE) {
1568 if (enabled && level)
1569 vwrq->flags = IW_POWER_UNICAST_R;
1570 else
1571 vwrq->flags = IW_POWER_ALL_R;
1572 }
1573
1574 return 0;
1575 }
1576
1577
1578 static const iw_handler zd1201_iw_handler[] =
1579 {
1580 (iw_handler) zd1201_config_commit, /* SIOCSIWCOMMIT */
1581 (iw_handler) zd1201_get_name, /* SIOCGIWNAME */
1582 (iw_handler) NULL, /* SIOCSIWNWID */
1583 (iw_handler) NULL, /* SIOCGIWNWID */
1584 (iw_handler) zd1201_set_freq, /* SIOCSIWFREQ */
1585 (iw_handler) zd1201_get_freq, /* SIOCGIWFREQ */
1586 (iw_handler) zd1201_set_mode, /* SIOCSIWMODE */
1587 (iw_handler) zd1201_get_mode, /* SIOCGIWMODE */
1588 (iw_handler) NULL, /* SIOCSIWSENS */
1589 (iw_handler) NULL, /* SIOCGIWSENS */
1590 (iw_handler) NULL, /* SIOCSIWRANGE */
1591 (iw_handler) zd1201_get_range, /* SIOCGIWRANGE */
1592 (iw_handler) NULL, /* SIOCSIWPRIV */
1593 (iw_handler) NULL, /* SIOCGIWPRIV */
1594 (iw_handler) NULL, /* SIOCSIWSTATS */
1595 (iw_handler) NULL, /* SIOCGIWSTATS */
1596 (iw_handler) NULL, /* SIOCSIWSPY */
1597 (iw_handler) NULL, /* SIOCGIWSPY */
1598 (iw_handler) NULL, /* -- hole -- */
1599 (iw_handler) NULL, /* -- hole -- */
1600 (iw_handler) NULL/*zd1201_set_wap*/, /* SIOCSIWAP */
1601 (iw_handler) zd1201_get_wap, /* SIOCGIWAP */
1602 (iw_handler) NULL, /* -- hole -- */
1603 (iw_handler) NULL, /* SIOCGIWAPLIST */
1604 (iw_handler) zd1201_set_scan, /* SIOCSIWSCAN */
1605 (iw_handler) zd1201_get_scan, /* SIOCGIWSCAN */
1606 (iw_handler) zd1201_set_essid, /* SIOCSIWESSID */
1607 (iw_handler) zd1201_get_essid, /* SIOCGIWESSID */
1608 (iw_handler) NULL, /* SIOCSIWNICKN */
1609 (iw_handler) zd1201_get_nick, /* SIOCGIWNICKN */
1610 (iw_handler) NULL, /* -- hole -- */
1611 (iw_handler) NULL, /* -- hole -- */
1612 (iw_handler) zd1201_set_rate, /* SIOCSIWRATE */
1613 (iw_handler) zd1201_get_rate, /* SIOCGIWRATE */
1614 (iw_handler) zd1201_set_rts, /* SIOCSIWRTS */
1615 (iw_handler) zd1201_get_rts, /* SIOCGIWRTS */
1616 (iw_handler) zd1201_set_frag, /* SIOCSIWFRAG */
1617 (iw_handler) zd1201_get_frag, /* SIOCGIWFRAG */
1618 (iw_handler) NULL, /* SIOCSIWTXPOW */
1619 (iw_handler) NULL, /* SIOCGIWTXPOW */
1620 (iw_handler) zd1201_set_retry, /* SIOCSIWRETRY */
1621 (iw_handler) zd1201_get_retry, /* SIOCGIWRETRY */
1622 (iw_handler) zd1201_set_encode, /* SIOCSIWENCODE */
1623 (iw_handler) zd1201_get_encode, /* SIOCGIWENCODE */
1624 (iw_handler) zd1201_set_power, /* SIOCSIWPOWER */
1625 (iw_handler) zd1201_get_power, /* SIOCGIWPOWER */
1626 };
1627
1628 static int zd1201_set_hostauth(struct net_device *dev,
1629 struct iw_request_info *info, struct iw_param *rrq, char *extra)
1630 {
1631 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1632 int err;
1633
1634 if (!zd->ap)
1635 return -EOPNOTSUPP;
1636
1637 err = zd1201_setconfig16(zd, ZD1201_RID_CNFHOSTAUTH, rrq->value);
1638 if (err)
1639 return err;
1640 return 0;
1641 }
1642
1643 static int zd1201_get_hostauth(struct net_device *dev,
1644 struct iw_request_info *info, struct iw_param *rrq, char *extra)
1645 {
1646 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1647 short hostauth;
1648 int err;
1649
1650 if (!zd->ap)
1651 return -EOPNOTSUPP;
1652
1653 err = zd1201_getconfig16(zd, ZD1201_RID_CNFHOSTAUTH, &hostauth);
1654 if (err)
1655 return err;
1656 rrq->value = hostauth;
1657 rrq->fixed = 1;
1658
1659 return 0;
1660 }
1661
1662 static int zd1201_auth_sta(struct net_device *dev,
1663 struct iw_request_info *info, struct sockaddr *sta, char *extra)
1664 {
1665 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1666 unsigned char buffer[10];
1667
1668 if (!zd->ap)
1669 return -EOPNOTSUPP;
1670
1671 memcpy(buffer, sta->sa_data, ETH_ALEN);
1672 *(short*)(buffer+6) = 0; /* 0==success, 1==failure */
1673 *(short*)(buffer+8) = 0;
1674
1675 return zd1201_setconfig(zd, ZD1201_RID_AUTHENTICATESTA, buffer, 10, 1);
1676 }
1677
1678 static int zd1201_set_maxassoc(struct net_device *dev,
1679 struct iw_request_info *info, struct iw_param *rrq, char *extra)
1680 {
1681 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1682 int err;
1683
1684 if (!zd->ap)
1685 return -EOPNOTSUPP;
1686
1687 err = zd1201_setconfig16(zd, ZD1201_RID_CNFMAXASSOCSTATIONS, rrq->value);
1688 if (err)
1689 return err;
1690 return 0;
1691 }
1692
1693 static int zd1201_get_maxassoc(struct net_device *dev,
1694 struct iw_request_info *info, struct iw_param *rrq, char *extra)
1695 {
1696 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1697 short maxassoc;
1698 int err;
1699
1700 if (!zd->ap)
1701 return -EOPNOTSUPP;
1702
1703 err = zd1201_getconfig16(zd, ZD1201_RID_CNFMAXASSOCSTATIONS, &maxassoc);
1704 if (err)
1705 return err;
1706 rrq->value = maxassoc;
1707 rrq->fixed = 1;
1708
1709 return 0;
1710 }
1711
1712 static const iw_handler zd1201_private_handler[] = {
1713 (iw_handler) zd1201_set_hostauth, /* ZD1201SIWHOSTAUTH */
1714 (iw_handler) zd1201_get_hostauth, /* ZD1201GIWHOSTAUTH */
1715 (iw_handler) zd1201_auth_sta, /* ZD1201SIWAUTHSTA */
1716 (iw_handler) NULL, /* nothing to get */
1717 (iw_handler) zd1201_set_maxassoc, /* ZD1201SIMAXASSOC */
1718 (iw_handler) zd1201_get_maxassoc, /* ZD1201GIMAXASSOC */
1719 };
1720
1721 static const struct iw_priv_args zd1201_private_args[] = {
1722 { ZD1201SIWHOSTAUTH, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
1723 IW_PRIV_TYPE_NONE, "sethostauth" },
1724 { ZD1201GIWHOSTAUTH, IW_PRIV_TYPE_NONE,
1725 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "gethostauth" },
1726 { ZD1201SIWAUTHSTA, IW_PRIV_TYPE_ADDR | IW_PRIV_SIZE_FIXED | 1,
1727 IW_PRIV_TYPE_NONE, "authstation" },
1728 { ZD1201SIWMAXASSOC, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
1729 IW_PRIV_TYPE_NONE, "setmaxassoc" },
1730 { ZD1201GIWMAXASSOC, IW_PRIV_TYPE_NONE,
1731 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getmaxassoc" },
1732 };
1733
1734 static const struct iw_handler_def zd1201_iw_handlers = {
1735 .num_standard = sizeof(zd1201_iw_handler)/sizeof(iw_handler),
1736 .num_private = sizeof(zd1201_private_handler)/sizeof(iw_handler),
1737 .num_private_args = sizeof(zd1201_private_args)/sizeof(struct iw_priv_args),
1738 .standard = (iw_handler *)zd1201_iw_handler,
1739 .private = (iw_handler *)zd1201_private_handler,
1740 .private_args = (struct iw_priv_args *) zd1201_private_args,
1741 };
1742
1743 static int zd1201_probe(struct usb_interface *interface,
1744 const struct usb_device_id *id)
1745 {
1746 struct zd1201 *zd;
1747 struct usb_device *usb;
1748 int i, err;
1749 short porttype;
1750 char buf[IW_ESSID_MAX_SIZE+2];
1751
1752 usb = interface_to_usbdev(interface);
1753
1754 zd = kmalloc(sizeof(struct zd1201), GFP_KERNEL);
1755 if (!zd) {
1756 return -ENOMEM;
1757 }
1758 memset(zd, 0, sizeof(struct zd1201));
1759 zd->ap = ap;
1760 zd->usb = usb;
1761 zd->removed = 0;
1762 init_waitqueue_head(&zd->rxdataq);
1763 INIT_HLIST_HEAD(&zd->fraglist);
1764
1765 err = zd1201_fw_upload(usb, zd->ap);
1766 if (err) {
1767 dev_err(&usb->dev, "zd1201 firmware upload failed: %d\n", err);
1768 goto err_zd;
1769 }
1770
1771 zd->endp_in = 1;
1772 zd->endp_out = 1;
1773 zd->endp_out2 = 2;
1774 zd->rx_urb = usb_alloc_urb(0, GFP_KERNEL);
1775 zd->tx_urb = usb_alloc_urb(0, GFP_KERNEL);
1776 if (!zd->rx_urb || !zd->tx_urb)
1777 goto err_zd;
1778
1779 for(i = 0; i<100; i++)
1780 udelay(1000);
1781
1782 err = zd1201_drvr_start(zd);
1783 if (err)
1784 goto err_zd;
1785
1786 err = zd1201_setconfig16(zd, ZD1201_RID_CNFMAXDATALEN, 2312);
1787 if (err)
1788 goto err_start;
1789
1790 err = zd1201_setconfig16(zd, ZD1201_RID_TXRATECNTL,
1791 ZD1201_RATEB1 | ZD1201_RATEB2 | ZD1201_RATEB5 | ZD1201_RATEB11);
1792 if (err)
1793 goto err_start;
1794
1795 zd->dev = alloc_etherdev(0);
1796 if (!zd->dev)
1797 goto err_start;
1798
1799 zd->dev->priv = zd;
1800 zd->dev->open = zd1201_net_open;
1801 zd->dev->stop = zd1201_net_stop;
1802 zd->dev->get_stats = zd1201_get_stats;
1803 zd->dev->get_wireless_stats = zd1201_get_wireless_stats;
1804 zd->dev->wireless_handlers =
1805 (struct iw_handler_def *)&zd1201_iw_handlers;
1806 zd->dev->hard_start_xmit = zd1201_hard_start_xmit;
1807 zd->dev->watchdog_timeo = ZD1201_TX_TIMEOUT;
1808 zd->dev->tx_timeout = zd1201_tx_timeout;
1809 zd->dev->set_multicast_list = zd1201_set_multicast;
1810 zd->dev->set_mac_address = zd1201_set_mac_address;
1811 strcpy(zd->dev->name, "wlan%d");
1812
1813 err = zd1201_getconfig(zd, ZD1201_RID_CNFOWNMACADDR,
1814 zd->dev->dev_addr, zd->dev->addr_len);
1815 if (err)
1816 goto err_net;
1817
1818 /* Set wildcard essid to match zd->essid */
1819 *(__le16 *)buf = cpu_to_le16(0);
1820 err = zd1201_setconfig(zd, ZD1201_RID_CNFDESIREDSSID, buf,
1821 IW_ESSID_MAX_SIZE+2, 1);
1822 if (err)
1823 goto err_net;
1824
1825 if (zd->ap)
1826 porttype = ZD1201_PORTTYPE_AP;
1827 else
1828 porttype = ZD1201_PORTTYPE_BSS;
1829 err = zd1201_setconfig16(zd, ZD1201_RID_CNFPORTTYPE, porttype);
1830 if (err)
1831 goto err_net;
1832
1833 err = register_netdev(zd->dev);
1834 if (err)
1835 goto err_net;
1836 dev_info(&usb->dev, "%s: ZD1201 USB Wireless interface\n",
1837 zd->dev->name);
1838
1839 usb_set_intfdata(interface, zd);
1840 return 0;
1841
1842 err_net:
1843 free_netdev(zd->dev);
1844 err_start:
1845 /* Leave the device in reset state */
1846 zd1201_docmd(zd, ZD1201_CMDCODE_INIT, 0, 0, 0);
1847 err_zd:
1848 if (zd->tx_urb)
1849 usb_free_urb(zd->tx_urb);
1850 if (zd->rx_urb)
1851 usb_free_urb(zd->rx_urb);
1852 kfree(zd);
1853 return err;
1854 }
1855
1856 static void zd1201_disconnect(struct usb_interface *interface)
1857 {
1858 struct zd1201 *zd=(struct zd1201 *)usb_get_intfdata(interface);
1859 struct hlist_node *node, *node2;
1860 struct zd1201_frag *frag;
1861
1862 if (!zd)
1863 return;
1864 usb_set_intfdata(interface, NULL);
1865 if (zd->dev) {
1866 unregister_netdev(zd->dev);
1867 free_netdev(zd->dev);
1868 }
1869
1870 hlist_for_each_entry_safe(frag, node, node2, &zd->fraglist, fnode) {
1871 hlist_del_init(&frag->fnode);
1872 kfree_skb(frag->skb);
1873 kfree(frag);
1874 }
1875
1876 if (zd->tx_urb) {
1877 usb_kill_urb(zd->tx_urb);
1878 usb_free_urb(zd->tx_urb);
1879 }
1880 if (zd->rx_urb) {
1881 usb_kill_urb(zd->rx_urb);
1882 usb_free_urb(zd->rx_urb);
1883 }
1884 kfree(zd);
1885 }
1886
1887 #ifdef CONFIG_PM
1888
1889 static int zd1201_suspend(struct usb_interface *interface,
1890 pm_message_t message)
1891 {
1892 struct zd1201 *zd = usb_get_intfdata(interface);
1893
1894 netif_device_detach(zd->dev);
1895
1896 zd->was_enabled = zd->mac_enabled;
1897
1898 if (zd->was_enabled)
1899 return zd1201_disable(zd);
1900 else
1901 return 0;
1902 }
1903
1904 static int zd1201_resume(struct usb_interface *interface)
1905 {
1906 struct zd1201 *zd = usb_get_intfdata(interface);
1907
1908 if (!zd || !zd->dev)
1909 return -ENODEV;
1910
1911 netif_device_attach(zd->dev);
1912
1913 if (zd->was_enabled)
1914 return zd1201_enable(zd);
1915 else
1916 return 0;
1917 }
1918
1919 #else
1920
1921 #define zd1201_suspend NULL
1922 #define zd1201_resume NULL
1923
1924 #endif
1925
1926 static struct usb_driver zd1201_usb = {
1927 .owner = THIS_MODULE,
1928 .name = "zd1201",
1929 .probe = zd1201_probe,
1930 .disconnect = zd1201_disconnect,
1931 .id_table = zd1201_table,
1932 .suspend = zd1201_suspend,
1933 .resume = zd1201_resume,
1934 };
1935
1936 static int __init zd1201_init(void)
1937 {
1938 return usb_register(&zd1201_usb);
1939 }
1940
1941 static void __exit zd1201_cleanup(void)
1942 {
1943 usb_deregister(&zd1201_usb);
1944 }
1945
1946 module_init(zd1201_init);
1947 module_exit(zd1201_cleanup);
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