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drivers/net: Remove unnecessary returns from void function()s
[net-next-2.6.git] / drivers / net / wireless / zd1201.c
CommitLineData
1da177e4
LT		 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>
5a0e3ad6 17#include <linux/slab.h>
1da177e4
LT		 18#include <linux/netdevice.h>
19#include <linux/etherdevice.h>
20#include <linux/wireless.h>
2c706002 21#include <linux/ieee80211.h>
1da177e4
LT		 22#include <net/iw_handler.h>
23#include <linux/string.h>
24#include <linux/if_arp.h>
25#include <linux/firmware.h>
1da177e4
LT		 26#include "zd1201.h"
27
28static struct usb_device_id zd1201_table[] = {
29 {USB_DEVICE(0x0586, 0x3400)}, /* Peabird Wireless USB Adapter */
30 {USB_DEVICE(0x0ace, 0x1201)}, /* ZyDAS ZD1201 Wireless USB Adapter */
31 {USB_DEVICE(0x050d, 0x6051)}, /* Belkin F5D6051 usb adapter */
32 {USB_DEVICE(0x0db0, 0x6823)}, /* MSI UB11B usb adapter */
f2908097 33 {USB_DEVICE(0x1044, 0x8005)}, /* GIGABYTE GN-WLBZ201 usb adapter */
1da177e4
LT		 34 {}
35};
36
2a806340 37static int ap; /* Are we an AP or a normal station? */
1da177e4
LT		 38
39#define ZD1201_VERSION "0.15"
40
41MODULE_AUTHOR("Jeroen Vreeken <pe1rxq@amsat.org>");
42MODULE_DESCRIPTION("Driver for ZyDAS ZD1201 based USB Wireless adapters");
43MODULE_VERSION(ZD1201_VERSION);
44MODULE_LICENSE("GPL");
45module_param(ap, int, 0);
46MODULE_PARM_DESC(ap, "If non-zero Access Point firmware will be loaded");
47MODULE_DEVICE_TABLE(usb, zd1201_table);
48
49
2e0a6b8c 50static int zd1201_fw_upload(struct usb_device *dev, int apfw)
1da177e4
LT		 51{
52 const struct firmware *fw_entry;
45ef0bdb 53 const char *data;
1da177e4
LT		 54 unsigned long len;
55 int err;
56 unsigned char ret;
57 char *buf;
58 char *fwfile;
59
60 if (apfw)
61 fwfile = "zd1201-ap.fw";
62 else
63 fwfile = "zd1201.fw";
64
65 err = request_firmware(&fw_entry, fwfile, &dev->dev);
66 if (err) {
67 dev_err(&dev->dev, "Failed to load %s firmware file!\n", fwfile);
68 dev_err(&dev->dev, "Make sure the hotplug firmware loader is installed.\n");
2a806340 69 dev_err(&dev->dev, "Goto http://linux-lc100020.sourceforge.net for more info.\n");
1da177e4
LT		 70 return err;
71 }
72
73 data = fw_entry->data;
74 len = fw_entry->size;
75
76 buf = kmalloc(1024, GFP_ATOMIC);
77 if (!buf)
78 goto exit;
79
80 while (len > 0) {
81 int translen = (len > 1024) ? 1024 : len;
82 memcpy(buf, data, translen);
83
84 err = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), 0,
85 USB_DIR_OUT | 0x40, 0, 0, buf, translen,
86 ZD1201_FW_TIMEOUT);
87 if (err < 0)
88 goto exit;
89
90 len -= translen;
91 data += translen;
92 }
93
94 err = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), 0x2,
95 USB_DIR_OUT | 0x40, 0, 0, NULL, 0, ZD1201_FW_TIMEOUT);
96 if (err < 0)
97 goto exit;
2a806340 98
1da177e4
LT		 99 err = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), 0x4,
100 USB_DIR_IN | 0x40, 0,0, &ret, sizeof(ret), ZD1201_FW_TIMEOUT);
101 if (err < 0)
102 goto exit;
2a806340 103
1da177e4
LT		 104 if (ret & 0x80) {
105 err = -EIO;
106 goto exit;
107 }
108
109 err = 0;
110exit:
1bc3c9e1 111 kfree(buf);
1da177e4
LT		 112 release_firmware(fw_entry);
113 return err;
114}
115
e01b0e0f
BH		 116MODULE_FIRMWARE("zd1201-ap.fw");
117MODULE_FIRMWARE("zd1201.fw");
118
7d12e780 119static void zd1201_usbfree(struct urb *urb)
1da177e4
LT		 120{
121 struct zd1201 *zd = urb->context;
122
123 switch(urb->status) {
124 case -EILSEQ:
125 case -ENODEV:
38e2bfc9 126 case -ETIME:
1da177e4
LT		 127 case -ENOENT:
128 case -EPIPE:
129 case -EOVERFLOW:
130 case -ESHUTDOWN:
131 dev_warn(&zd->usb->dev, "%s: urb failed: %d\n",
132 zd->dev->name, urb->status);
133 }
134
135 kfree(urb->transfer_buffer);
136 usb_free_urb(urb);
1da177e4
LT		 137}
138
139/* cmdreq message:
140 u32 type
141 u16 cmd
142 u16 parm0
143 u16 parm1
144 u16 parm2
145 u8 pad[4]
146
147 total: 4 + 2 + 2 + 2 + 2 + 4 = 16
148*/
2e0a6b8c
AB		 149static int zd1201_docmd(struct zd1201 *zd, int cmd, int parm0,
150 int parm1, int parm2)
1da177e4
LT		 151{
152 unsigned char *command;
153 int ret;
154 struct urb *urb;
155
156 command = kmalloc(16, GFP_ATOMIC);
157 if (!command)
158 return -ENOMEM;
159
160 *((__le32*)command) = cpu_to_le32(ZD1201_USB_CMDREQ);
161 *((__le16*)&command[4]) = cpu_to_le16(cmd);
162 *((__le16*)&command[6]) = cpu_to_le16(parm0);
163 *((__le16*)&command[8]) = cpu_to_le16(parm1);
164 *((__le16*)&command[10])= cpu_to_le16(parm2);
165
166 urb = usb_alloc_urb(0, GFP_ATOMIC);
167 if (!urb) {
168 kfree(command);
169 return -ENOMEM;
170 }
171 usb_fill_bulk_urb(urb, zd->usb, usb_sndbulkpipe(zd->usb, zd->endp_out2),
2a806340 172 command, 16, zd1201_usbfree, zd);
1da177e4
LT		 173 ret = usb_submit_urb(urb, GFP_ATOMIC);
174 if (ret) {
175 kfree(command);
176 usb_free_urb(urb);
177 }
2a806340 178
1da177e4
LT		 179 return ret;
180}
181
182/* Callback after sending out a packet */
7d12e780 183static void zd1201_usbtx(struct urb *urb)
1da177e4
LT		 184{
185 struct zd1201 *zd = urb->context;
186 netif_wake_queue(zd->dev);
1da177e4
LT		 187}
188
093cf723 189/* Incoming data */
7d12e780 190static void zd1201_usbrx(struct urb *urb)
1da177e4
LT		 191{
192 struct zd1201 *zd = urb->context;
193 int free = 0;
194 unsigned char *data = urb->transfer_buffer;
195 struct sk_buff *skb;
196 unsigned char type;
197
683f8c9e
ES		 198 if (!zd)
199 return;
1da177e4
LT		 200
201 switch(urb->status) {
202 case -EILSEQ:
203 case -ENODEV:
38e2bfc9 204 case -ETIME:
1da177e4
LT		 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
2a806340 319 if (zd->monitor) {
1da177e4
LT		 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);
1da177e4 332 skb->protocol = eth_type_trans(skb, zd->dev);
22bc1ce4
SH		 333 zd->dev->stats.rx_packets++;
334 zd->dev->stats.rx_bytes += skb->len;
1da177e4
LT		 335 netif_rx(skb);
336 goto resubmit;
337 }
338
3dcefbc9
AV		 339 if ((seq & IEEE80211_SCTL_FRAG) ||
340 (fc & IEEE80211_FCTL_MOREFRAGS)) {
1da177e4
LT		 341 struct zd1201_frag *frag = NULL;
342 char *ptr;
343
344 if (datalen<14)
345 goto resubmit;
3dcefbc9 346 if ((seq & IEEE80211_SCTL_FRAG) == 0) {
81065e2f 347 frag = kmalloc(sizeof(*frag), GFP_ATOMIC);
1da177e4
LT		 348 if (!frag)
349 goto resubmit;
2c706002 350 skb = dev_alloc_skb(IEEE80211_MAX_DATA_LEN +14+2);
1da177e4
LT		 351 if (!skb) {
352 kfree(frag);
353 goto resubmit;
354 }
355 frag->skb = skb;
3dcefbc9 356 frag->seq = seq & IEEE80211_SCTL_SEQ;
1da177e4
LT		 357 skb_reserve(skb, 2);
358 memcpy(skb_put(skb, 12), &data[datalen-14], 12);
359 memcpy(skb_put(skb, 2), &data[6], 2);
360 memcpy(skb_put(skb, len), data+8, len);
361 hlist_add_head(&frag->fnode, &zd->fraglist);
362 goto resubmit;
363 }
364 hlist_for_each_entry(frag, node, &zd->fraglist, fnode)
2a806340 365 if (frag->seq == (seq&IEEE80211_SCTL_SEQ))
1da177e4
LT		 366 break;
367 if (!frag)
368 goto resubmit;
369 skb = frag->skb;
370 ptr = skb_put(skb, len);
371 if (ptr)
372 memcpy(ptr, data+8, len);
3dcefbc9 373 if (fc & IEEE80211_FCTL_MOREFRAGS)
1da177e4
LT		 374 goto resubmit;
375 hlist_del_init(&frag->fnode);
376 kfree(frag);
1da177e4
LT		 377 } else {
378 if (datalen<14)
379 goto resubmit;
380 skb = dev_alloc_skb(len + 14 + 2);
381 if (!skb)
382 goto resubmit;
383 skb_reserve(skb, 2);
384 memcpy(skb_put(skb, 12), &data[datalen-14], 12);
385 memcpy(skb_put(skb, 2), &data[6], 2);
386 memcpy(skb_put(skb, len), data+8, len);
387 }
1da177e4 388 skb->protocol = eth_type_trans(skb, zd->dev);
22bc1ce4
SH		 389 zd->dev->stats.rx_packets++;
390 zd->dev->stats.rx_bytes += skb->len;
1da177e4
LT		 391 netif_rx(skb);
392 }
393resubmit:
394 memset(data, 0, ZD1201_RXSIZE);
395
396 urb->status = 0;
397 urb->dev = zd->usb;
398 if(usb_submit_urb(urb, GFP_ATOMIC))
399 free = 1;
400
401exit:
402 if (free) {
403 zd->rxlen = 0;
404 zd->rxdatas = 1;
405 wake_up(&zd->rxdataq);
406 kfree(urb->transfer_buffer);
407 }
1da177e4
LT		 408}
409
410static int zd1201_getconfig(struct zd1201 *zd, int rid, void *riddata,
411 unsigned int riddatalen)
412{
413 int err;
414 int i = 0;
415 int code;
416 int rid_fid;
417 int length;
418 unsigned char *pdata;
2a806340 419
1da177e4
LT		 420 zd->rxdatas = 0;
421 err = zd1201_docmd(zd, ZD1201_CMDCODE_ACCESS, rid, 0, 0);
422 if (err)
423 return err;
424
425 wait_event_interruptible(zd->rxdataq, zd->rxdatas);
426 if (!zd->rxlen)
427 return -EIO;
428
429 code = le16_to_cpu(*(__le16*)(&zd->rxdata[4]));
430 rid_fid = le16_to_cpu(*(__le16*)(&zd->rxdata[6]));
431 length = le16_to_cpu(*(__le16*)(&zd->rxdata[8]));
432 if (length > zd->rxlen)
433 length = zd->rxlen-6;
434
435 /* If access bit is not on, then error */
436 if ((code & ZD1201_ACCESSBIT) != ZD1201_ACCESSBIT || rid_fid != rid )
437 return -EINVAL;
438
439 /* Not enough buffer for allocating data */
440 if (riddatalen != (length - 4)) {
441 dev_dbg(&zd->usb->dev, "riddatalen mismatches, expected=%u, (packet=%u) length=%u, rid=0x%04X, rid_fid=0x%04X\n",
442 riddatalen, zd->rxlen, length, rid, rid_fid);
443 return -ENODATA;
444 }
445
446 zd->rxdatas = 0;
447 /* Issue SetRxRid commnd */
448 err = zd1201_docmd(zd, ZD1201_CMDCODE_SETRXRID, rid, 0, length);
449 if (err)
450 return err;
451
452 /* Receive RID record from resource packets */
453 wait_event_interruptible(zd->rxdataq, zd->rxdatas);
454 if (!zd->rxlen)
455 return -EIO;
456
457 if (zd->rxdata[zd->rxlen - 1] != ZD1201_PACKET_RESOURCE) {
458 dev_dbg(&zd->usb->dev, "Packet type mismatch: 0x%x not 0x3\n",
459 zd->rxdata[zd->rxlen-1]);
460 return -EINVAL;
461 }
462
463 /* Set the data pointer and received data length */
464 pdata = zd->rxdata;
465 length = zd->rxlen;
466
467 do {
2a806340 468 int actual_length;
1da177e4
LT		 469
470 actual_length = (length > 64) ? 64 : length;
471
2a806340 472 if (pdata[0] != 0x3) {
1da177e4
LT		 473 dev_dbg(&zd->usb->dev, "Rx Resource packet type error: %02X\n",
474 pdata[0]);
475 return -EINVAL;
476 }
477
478 if (actual_length != 64) {
479 /* Trim the last packet type byte */
480 actual_length--;
481 }
482
483 /* Skip the 4 bytes header (RID length and RID) */
2a806340 484 if (i == 0) {
1da177e4
LT		 485 pdata += 8;
486 actual_length -= 8;
2a806340 487 } else {
1da177e4
LT		 488 pdata += 4;
489 actual_length -= 4;
490 }
491
492 memcpy(riddata, pdata, actual_length);
493 riddata += actual_length;
494 pdata += actual_length;
495 length -= 64;
496 i++;
497 } while (length > 0);
498
499 return 0;
500}
501
502/*
503 * resreq:
504 * byte type
505 * byte sequence
506 * u16 reserved
507 * byte data[12]
508 * total: 16
509 */
510static int zd1201_setconfig(struct zd1201 *zd, int rid, void *buf, int len, int wait)
511{
512 int err;
513 unsigned char *request;
514 int reqlen;
515 char seq=0;
516 struct urb *urb;
55016f10 517 gfp_t gfp_mask = wait ? GFP_NOIO : GFP_ATOMIC;
1da177e4
LT		 518
519 len += 4; /* first 4 are for header */
520
521 zd->rxdatas = 0;
522 zd->rxlen = 0;
523 for (seq=0; len > 0; seq++) {
524 request = kmalloc(16, gfp_mask);
525 if (!request)
526 return -ENOMEM;
527 urb = usb_alloc_urb(0, gfp_mask);
528 if (!urb) {
529 kfree(request);
530 return -ENOMEM;
531 }
532 memset(request, 0, 16);
533 reqlen = len>12 ? 12 : len;
534 request[0] = ZD1201_USB_RESREQ;
535 request[1] = seq;
536 request[2] = 0;
537 request[3] = 0;
538 if (request[1] == 0) {
539 /* add header */
540 *(__le16*)&request[4] = cpu_to_le16((len-2+1)/2);
541 *(__le16*)&request[6] = cpu_to_le16(rid);
542 memcpy(request+8, buf, reqlen-4);
543 buf += reqlen-4;
544 } else {
545 memcpy(request+4, buf, reqlen);
546 buf += reqlen;
547 }
548
549 len -= reqlen;
550
551 usb_fill_bulk_urb(urb, zd->usb, usb_sndbulkpipe(zd->usb,
552 zd->endp_out2), request, 16, zd1201_usbfree, zd);
553 err = usb_submit_urb(urb, gfp_mask);
554 if (err)
555 goto err;
556 }
557
558 request = kmalloc(16, gfp_mask);
559 if (!request)
560 return -ENOMEM;
561 urb = usb_alloc_urb(0, gfp_mask);
562 if (!urb) {
563 kfree(request);
564 return -ENOMEM;
565 }
566 *((__le32*)request) = cpu_to_le32(ZD1201_USB_CMDREQ);
567 *((__le16*)&request[4]) =
568 cpu_to_le16(ZD1201_CMDCODE_ACCESS|ZD1201_ACCESSBIT);
569 *((__le16*)&request[6]) = cpu_to_le16(rid);
570 *((__le16*)&request[8]) = cpu_to_le16(0);
571 *((__le16*)&request[10]) = cpu_to_le16(0);
572 usb_fill_bulk_urb(urb, zd->usb, usb_sndbulkpipe(zd->usb, zd->endp_out2),
573 request, 16, zd1201_usbfree, zd);
574 err = usb_submit_urb(urb, gfp_mask);
575 if (err)
576 goto err;
577
578 if (wait) {
579 wait_event_interruptible(zd->rxdataq, zd->rxdatas);
580 if (!zd->rxlen || le16_to_cpu(*(__le16*)&zd->rxdata[6]) != rid) {
581 dev_dbg(&zd->usb->dev, "wrong or no RID received\n");
582 }
583 }
584
585 return 0;
586err:
587 kfree(request);
588 usb_free_urb(urb);
589 return err;
590}
591
592static inline int zd1201_getconfig16(struct zd1201 *zd, int rid, short *val)
593{
594 int err;
595 __le16 zdval;
596
597 err = zd1201_getconfig(zd, rid, &zdval, sizeof(__le16));
598 if (err)
599 return err;
600 *val = le16_to_cpu(zdval);
601 return 0;
602}
603
604static inline int zd1201_setconfig16(struct zd1201 *zd, int rid, short val)
605{
606 __le16 zdval = cpu_to_le16(val);
607 return (zd1201_setconfig(zd, rid, &zdval, sizeof(__le16), 1));
608}
609
2e0a6b8c 610static int zd1201_drvr_start(struct zd1201 *zd)
1da177e4
LT		 611{
612 int err, i;
613 short max;
614 __le16 zdmax;
615 unsigned char *buffer;
2a806340 616
80b6ca48 617 buffer = kzalloc(ZD1201_RXSIZE, GFP_KERNEL);
1da177e4
LT		 618 if (!buffer)
619 return -ENOMEM;
1da177e4
LT		 620
621 usb_fill_bulk_urb(zd->rx_urb, zd->usb,
622 usb_rcvbulkpipe(zd->usb, zd->endp_in), buffer, ZD1201_RXSIZE,
623 zd1201_usbrx, zd);
624
625 err = usb_submit_urb(zd->rx_urb, GFP_KERNEL);
626 if (err)
627 goto err_buffer;
2a806340 628
1da177e4
LT		 629 err = zd1201_docmd(zd, ZD1201_CMDCODE_INIT, 0, 0, 0);
630 if (err)
631 goto err_urb;
632
633 err = zd1201_getconfig(zd, ZD1201_RID_CNFMAXTXBUFFERNUMBER, &zdmax,
634 sizeof(__le16));
635 if (err)
636 goto err_urb;
637
638 max = le16_to_cpu(zdmax);
639 for (i=0; i<max; i++) {
640 err = zd1201_docmd(zd, ZD1201_CMDCODE_ALLOC, 1514, 0, 0);
641 if (err)
642 goto err_urb;
643 }
644
645 return 0;
646
647err_urb:
648 usb_kill_urb(zd->rx_urb);
649 return err;
650err_buffer:
651 kfree(buffer);
652 return err;
653}
654
655/* Magic alert: The firmware doesn't seem to like the MAC state being
656 * toggled in promisc (aka monitor) mode.
657 * (It works a number of times, but will halt eventually)
658 * So we turn it of before disabling and on after enabling if needed.
659 */
660static int zd1201_enable(struct zd1201 *zd)
661{
662 int err;
663
664 if (zd->mac_enabled)
665 return 0;
666
667 err = zd1201_docmd(zd, ZD1201_CMDCODE_ENABLE, 0, 0, 0);
668 if (!err)
669 zd->mac_enabled = 1;
670
671 if (zd->monitor)
672 err = zd1201_setconfig16(zd, ZD1201_RID_PROMISCUOUSMODE, 1);
673
674 return err;
675}
676
677static int zd1201_disable(struct zd1201 *zd)
678{
679 int err;
2a806340 680
1da177e4
LT		 681 if (!zd->mac_enabled)
682 return 0;
683 if (zd->monitor) {
684 err = zd1201_setconfig16(zd, ZD1201_RID_PROMISCUOUSMODE, 0);
685 if (err)
686 return err;
687 }
688
689 err = zd1201_docmd(zd, ZD1201_CMDCODE_DISABLE, 0, 0, 0);
690 if (!err)
691 zd->mac_enabled = 0;
692 return err;
693}
694
695static int zd1201_mac_reset(struct zd1201 *zd)
696{
697 if (!zd->mac_enabled)
698 return 0;
699 zd1201_disable(zd);
700 return zd1201_enable(zd);
701}
702
703static int zd1201_join(struct zd1201 *zd, char *essid, int essidlen)
704{
705 int err, val;
706 char buf[IW_ESSID_MAX_SIZE+2];
707
708 err = zd1201_disable(zd);
709 if (err)
710 return err;
711
712 val = ZD1201_CNFAUTHENTICATION_OPENSYSTEM;
713 val |= ZD1201_CNFAUTHENTICATION_SHAREDKEY;
714 err = zd1201_setconfig16(zd, ZD1201_RID_CNFAUTHENTICATION, val);
715 if (err)
716 return err;
717
718 *(__le16 *)buf = cpu_to_le16(essidlen);
719 memcpy(buf+2, essid, essidlen);
720 if (!zd->ap) { /* Normal station */
721 err = zd1201_setconfig(zd, ZD1201_RID_CNFDESIREDSSID, buf,
722 IW_ESSID_MAX_SIZE+2, 1);
723 if (err)
724 return err;
725 } else { /* AP */
726 err = zd1201_setconfig(zd, ZD1201_RID_CNFOWNSSID, buf,
727 IW_ESSID_MAX_SIZE+2, 1);
728 if (err)
729 return err;
730 }
731
732 err = zd1201_setconfig(zd, ZD1201_RID_CNFOWNMACADDR,
733 zd->dev->dev_addr, zd->dev->addr_len, 1);
734 if (err)
735 return err;
736
737 err = zd1201_enable(zd);
738 if (err)
739 return err;
740
741 msleep(100);
742 return 0;
743}
744
745static int zd1201_net_open(struct net_device *dev)
746{
3d29b0c3 747 struct zd1201 *zd = netdev_priv(dev);
1da177e4
LT		 748
749 /* Start MAC with wildcard if no essid set */
750 if (!zd->mac_enabled)
751 zd1201_join(zd, zd->essid, zd->essidlen);
752 netif_start_queue(dev);
753
754 return 0;
755}
756
757static int zd1201_net_stop(struct net_device *dev)
758{
759 netif_stop_queue(dev);
1da177e4
LT		 760 return 0;
761}
762
763/*
764 RFC 1042 encapsulates Ethernet frames in 802.11 frames
765 by prefixing them with 0xaa, 0xaa, 0x03) followed by a SNAP OID of 0
093cf723 766 (0x00, 0x00, 0x00). Zd requires an additional padding, copy
1da177e4
LT		 767 of ethernet addresses, length of the standard RFC 1042 packet
768 and a command byte (which is nul for tx).
769
770 tx frame (from Wlan NG):
771 RFC 1042:
772 llc 0xAA 0xAA 0x03 (802.2 LLC)
773 snap 0x00 0x00 0x00 (Ethernet encapsulated)
774 type 2 bytes, Ethernet type field
775 payload (minus eth header)
776 Zydas specific:
777 padding 1B if (skb->len+8+1)%64==0
778 Eth MAC addr 12 bytes, Ethernet MAC addresses
779 length 2 bytes, RFC 1042 packet length
780 (llc+snap+type+payload)
781 zd 1 null byte, zd1201 packet type
782 */
d0cf9c0d
SH		 783static netdev_tx_t zd1201_hard_start_xmit(struct sk_buff *skb,
784 struct net_device *dev)
1da177e4 785{
3d29b0c3 786 struct zd1201 *zd = netdev_priv(dev);
1da177e4
LT		 787 unsigned char *txbuf = zd->txdata;
788 int txbuflen, pad = 0, err;
789 struct urb *urb = zd->tx_urb;
790
791 if (!zd->mac_enabled || zd->monitor) {
22bc1ce4 792 dev->stats.tx_dropped++;
1da177e4 793 kfree_skb(skb);
6ed10654 794 return NETDEV_TX_OK;
1da177e4
LT		 795 }
796 netif_stop_queue(dev);
797
798 txbuflen = skb->len + 8 + 1;
799 if (txbuflen%64 == 0) {
800 pad = 1;
801 txbuflen++;
802 }
803 txbuf[0] = 0xAA;
804 txbuf[1] = 0xAA;
805 txbuf[2] = 0x03;
806 txbuf[3] = 0x00; /* rfc1042 */
807 txbuf[4] = 0x00;
808 txbuf[5] = 0x00;
809
d626f62b 810 skb_copy_from_linear_data_offset(skb, 12, txbuf + 6, skb->len - 12);
1da177e4
LT		 811 if (pad)
812 txbuf[skb->len-12+6]=0;
d626f62b 813 skb_copy_from_linear_data(skb, txbuf + skb->len - 12 + 6 + pad, 12);
1da177e4
LT		 814 *(__be16*)&txbuf[skb->len+6+pad] = htons(skb->len-12+6);
815 txbuf[txbuflen-1] = 0;
816
817 usb_fill_bulk_urb(urb, zd->usb, usb_sndbulkpipe(zd->usb, zd->endp_out),
818 txbuf, txbuflen, zd1201_usbtx, zd);
819
820 err = usb_submit_urb(zd->tx_urb, GFP_ATOMIC);
821 if (err) {
22bc1ce4 822 dev->stats.tx_errors++;
1da177e4 823 netif_start_queue(dev);
4153e775
PM		 824 } else {
825 dev->stats.tx_packets++;
826 dev->stats.tx_bytes += skb->len;
1da177e4 827 }
1da177e4
LT		 828 kfree_skb(skb);
829
6ed10654 830 return NETDEV_TX_OK;
1da177e4
LT		 831}
832
833static void zd1201_tx_timeout(struct net_device *dev)
834{
3d29b0c3 835 struct zd1201 *zd = netdev_priv(dev);
1da177e4
LT		 836
837 if (!zd)
838 return;
839 dev_warn(&zd->usb->dev, "%s: TX timeout, shooting down urb\n",
840 dev->name);
1da177e4 841 usb_unlink_urb(zd->tx_urb);
22bc1ce4 842 dev->stats.tx_errors++;
1da177e4 843 /* Restart the timeout to quiet the watchdog: */
1ae5dc34 844 dev->trans_start = jiffies; /* prevent tx timeout */
1da177e4
LT		 845}
846
847static int zd1201_set_mac_address(struct net_device *dev, void *p)
848{
849 struct sockaddr *addr = p;
3d29b0c3 850 struct zd1201 *zd = netdev_priv(dev);
1da177e4
LT		 851 int err;
852
853 if (!zd)
854 return -ENODEV;
855
856 err = zd1201_setconfig(zd, ZD1201_RID_CNFOWNMACADDR,
857 addr->sa_data, dev->addr_len, 1);
858 if (err)
859 return err;
860 memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
861
862 return zd1201_mac_reset(zd);
863}
864
1da177e4
LT		 865static struct iw_statistics *zd1201_get_wireless_stats(struct net_device *dev)
866{
3d29b0c3 867 struct zd1201 *zd = netdev_priv(dev);
1da177e4
LT		 868
869 return &zd->iwstats;
870}
871
872static void zd1201_set_multicast(struct net_device *dev)
873{
3d29b0c3 874 struct zd1201 *zd = netdev_priv(dev);
22bedad3 875 struct netdev_hw_addr *ha;
1da177e4
LT		 876 unsigned char reqbuf[ETH_ALEN*ZD1201_MAXMULTI];
877 int i;
878
4cd24eaf 879 if (netdev_mc_count(dev) > ZD1201_MAXMULTI)
1da177e4
LT		 880 return;
881
655ffee2 882 i = 0;
22bedad3
JP		 883 netdev_for_each_mc_addr(ha, dev)
884 memcpy(reqbuf + i++ * ETH_ALEN, ha->addr, ETH_ALEN);
1da177e4 885 zd1201_setconfig(zd, ZD1201_RID_CNFGROUPADDRESS, reqbuf,
4cd24eaf 886 netdev_mc_count(dev) * ETH_ALEN, 0);
1da177e4
LT		 887}
888
889static int zd1201_config_commit(struct net_device *dev,
890 struct iw_request_info *info, struct iw_point *data, char *essid)
891{
3d29b0c3 892 struct zd1201 *zd = netdev_priv(dev);
1da177e4
LT		 893
894 return zd1201_mac_reset(zd);
895}
896
897static int zd1201_get_name(struct net_device *dev,
898 struct iw_request_info *info, char *name, char *extra)
899{
900 strcpy(name, "IEEE 802.11b");
1da177e4
LT		 901 return 0;
902}
903
904static int zd1201_set_freq(struct net_device *dev,
905 struct iw_request_info *info, struct iw_freq *freq, char *extra)
906{
3d29b0c3 907 struct zd1201 *zd = netdev_priv(dev);
1da177e4
LT		 908 short channel = 0;
909 int err;
910
911 if (freq->e == 0)
912 channel = freq->m;
913 else {
9ee677c2
DK		 914 channel = ieee80211_freq_to_dsss_chan(freq->m);
915 if (channel < 0)
916 channel = 0;
1da177e4
LT		 917 }
918
919 err = zd1201_setconfig16(zd, ZD1201_RID_CNFOWNCHANNEL, channel);
920 if (err)
921 return err;
922
923 zd1201_mac_reset(zd);
924
925 return 0;
926}
927
928static int zd1201_get_freq(struct net_device *dev,
929 struct iw_request_info *info, struct iw_freq *freq, char *extra)
930{
3d29b0c3 931 struct zd1201 *zd = netdev_priv(dev);
1da177e4
LT		 932 short channel;
933 int err;
934
935 err = zd1201_getconfig16(zd, ZD1201_RID_CNFOWNCHANNEL, &channel);
936 if (err)
937 return err;
938 freq->e = 0;
939 freq->m = channel;
940
941 return 0;
942}
943
944static int zd1201_set_mode(struct net_device *dev,
945 struct iw_request_info *info, __u32 *mode, char *extra)
946{
3d29b0c3 947 struct zd1201 *zd = netdev_priv(dev);
1da177e4
LT		 948 short porttype, monitor = 0;
949 unsigned char buffer[IW_ESSID_MAX_SIZE+2];
950 int err;
951
952 if (zd->ap) {
953 if (*mode != IW_MODE_MASTER)
954 return -EINVAL;
955 return 0;
956 }
957
958 err = zd1201_setconfig16(zd, ZD1201_RID_PROMISCUOUSMODE, 0);
959 if (err)
960 return err;
961 zd->dev->type = ARPHRD_ETHER;
962 switch(*mode) {
963 case IW_MODE_MONITOR:
964 monitor = 1;
965 zd->dev->type = ARPHRD_IEEE80211;
966 /* Make sure we are no longer associated with by
967 setting an 'impossible' essid.
968 (otherwise we mess up firmware)
969 */
970 zd1201_join(zd, "\0-*#\0", 5);
971 /* Put port in pIBSS */
972 case 8: /* No pseudo-IBSS in wireless extensions (yet) */
973 porttype = ZD1201_PORTTYPE_PSEUDOIBSS;
974 break;
975 case IW_MODE_ADHOC:
976 porttype = ZD1201_PORTTYPE_IBSS;
977 break;
978 case IW_MODE_INFRA:
979 porttype = ZD1201_PORTTYPE_BSS;
980 break;
981 default:
982 return -EINVAL;
983 }
984
985 err = zd1201_setconfig16(zd, ZD1201_RID_CNFPORTTYPE, porttype);
986 if (err)
987 return err;
988 if (zd->monitor && !monitor) {
989 zd1201_disable(zd);
990 *(__le16 *)buffer = cpu_to_le16(zd->essidlen);
991 memcpy(buffer+2, zd->essid, zd->essidlen);
992 err = zd1201_setconfig(zd, ZD1201_RID_CNFDESIREDSSID,
993 buffer, IW_ESSID_MAX_SIZE+2, 1);
994 if (err)
995 return err;
996 }
2a806340 997 zd->monitor = monitor;
1da177e4
LT		 998 /* If monitor mode is set we don't actually turn it on here since it
999 * is done during mac reset anyway (see zd1201_mac_enable).
1000 */
1da177e4
LT		 1001 zd1201_mac_reset(zd);
1002
1003 return 0;
1004}
1005
1006static int zd1201_get_mode(struct net_device *dev,
1007 struct iw_request_info *info, __u32 *mode, char *extra)
1008{
3d29b0c3 1009 struct zd1201 *zd = netdev_priv(dev);
1da177e4
LT		 1010 short porttype;
1011 int err;
1012
1013 err = zd1201_getconfig16(zd, ZD1201_RID_CNFPORTTYPE, &porttype);
1014 if (err)
1015 return err;
1016 switch(porttype) {
1017 case ZD1201_PORTTYPE_IBSS:
1018 *mode = IW_MODE_ADHOC;
1019 break;
1020 case ZD1201_PORTTYPE_BSS:
1021 *mode = IW_MODE_INFRA;
1022 break;
1023 case ZD1201_PORTTYPE_WDS:
1024 *mode = IW_MODE_REPEAT;
1025 break;
1026 case ZD1201_PORTTYPE_PSEUDOIBSS:
1027 *mode = 8;/* No Pseudo-IBSS... */
1028 break;
1029 case ZD1201_PORTTYPE_AP:
1030 *mode = IW_MODE_MASTER;
1031 break;
1032 default:
1033 dev_dbg(&zd->usb->dev, "Unknown porttype: %d\n",
1034 porttype);
1035 *mode = IW_MODE_AUTO;
1036 }
1037 if (zd->monitor)
1038 *mode = IW_MODE_MONITOR;
1039
1040 return 0;
1041}
1042
1043static int zd1201_get_range(struct net_device *dev,
1044 struct iw_request_info *info, struct iw_point *wrq, char *extra)
1045{
1046 struct iw_range *range = (struct iw_range *)extra;
1047
1048 wrq->length = sizeof(struct iw_range);
1049 memset(range, 0, sizeof(struct iw_range));
1050 range->we_version_compiled = WIRELESS_EXT;
1051 range->we_version_source = WIRELESS_EXT;
1052
1053 range->max_qual.qual = 128;
1054 range->max_qual.level = 128;
1055 range->max_qual.noise = 128;
1056 range->max_qual.updated = 7;
1057
1058 range->encoding_size[0] = 5;
1059 range->encoding_size[1] = 13;
1060 range->num_encoding_sizes = 2;
1061 range->max_encoding_tokens = ZD1201_NUMKEYS;
1062
1063 range->num_bitrates = 4;
1064 range->bitrate[0] = 1000000;
1065 range->bitrate[1] = 2000000;
1066 range->bitrate[2] = 5500000;
1067 range->bitrate[3] = 11000000;
1068
1069 range->min_rts = 0;
1070 range->min_frag = ZD1201_FRAGMIN;
1071 range->max_rts = ZD1201_RTSMAX;
1072 range->min_frag = ZD1201_FRAGMAX;
1073
1074 return 0;
1075}
1076
1077/* Little bit of magic here: we only get the quality if we poll
1078 * for it, and we never get an actual request to trigger such
093cf723 1079 * a poll. Therefore we 'assume' that the user will soon ask for
1da177e4
LT		 1080 * the stats after asking the bssid.
1081 */
1082static int zd1201_get_wap(struct net_device *dev,
1083 struct iw_request_info *info, struct sockaddr *ap_addr, char *extra)
1084{
3d29b0c3 1085 struct zd1201 *zd = netdev_priv(dev);
1da177e4
LT		 1086 unsigned char buffer[6];
1087
1088 if (!zd1201_getconfig(zd, ZD1201_RID_COMMSQUALITY, buffer, 6)) {
093cf723 1089 /* Unfortunately the quality and noise reported is useless.
1da177e4
LT		 1090 they seem to be accumulators that increase until you
1091 read them, unless we poll on a fixed interval we can't
1092 use them
1093 */
1094 /*zd->iwstats.qual.qual = le16_to_cpu(((__le16 *)buffer)[0]);*/
1095 zd->iwstats.qual.level = le16_to_cpu(((__le16 *)buffer)[1]);
1096 /*zd->iwstats.qual.noise = le16_to_cpu(((__le16 *)buffer)[2]);*/
1097 zd->iwstats.qual.updated = 2;
1098 }
1099
2a806340 1100 return zd1201_getconfig(zd, ZD1201_RID_CURRENTBSSID, ap_addr->sa_data, 6);
1da177e4
LT		 1101}
1102
1103static int zd1201_set_scan(struct net_device *dev,
1104 struct iw_request_info *info, struct iw_point *srq, char *extra)
1105{
1106 /* We do everything in get_scan */
1107 return 0;
1108}
1109
1110static int zd1201_get_scan(struct net_device *dev,
1111 struct iw_request_info *info, struct iw_point *srq, char *extra)
1112{
3d29b0c3 1113 struct zd1201 *zd = netdev_priv(dev);
1da177e4
LT		 1114 int err, i, j, enabled_save;
1115 struct iw_event iwe;
1116 char *cev = extra;
1117 char *end_buf = extra + IW_SCAN_MAX_DATA;
1118
1119 /* No scanning in AP mode */
1120 if (zd->ap)
1121 return -EOPNOTSUPP;
1122
1123 /* Scan doesn't seem to work if disabled */
1124 enabled_save = zd->mac_enabled;
1125 zd1201_enable(zd);
1126
1127 zd->rxdatas = 0;
1128 err = zd1201_docmd(zd, ZD1201_CMDCODE_INQUIRE,
1129 ZD1201_INQ_SCANRESULTS, 0, 0);
1130 if (err)
1131 return err;
1132
1133 wait_event_interruptible(zd->rxdataq, zd->rxdatas);
1134 if (!zd->rxlen)
1135 return -EIO;
1136
1137 if (le16_to_cpu(*(__le16*)&zd->rxdata[2]) != ZD1201_INQ_SCANRESULTS)
1138 return -EIO;
1139
1140 for(i=8; i<zd->rxlen; i+=62) {
1141 iwe.cmd = SIOCGIWAP;
1142 iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
1143 memcpy(iwe.u.ap_addr.sa_data, zd->rxdata+i+6, 6);
ccc58057
DM		 1144 cev = iwe_stream_add_event(info, cev, end_buf,
1145 &iwe, IW_EV_ADDR_LEN);
1da177e4
LT		 1146
1147 iwe.cmd = SIOCGIWESSID;
1148 iwe.u.data.length = zd->rxdata[i+16];
1149 iwe.u.data.flags = 1;
ccc58057
DM		 1150 cev = iwe_stream_add_point(info, cev, end_buf,
1151 &iwe, zd->rxdata+i+18);
1da177e4
LT		 1152
1153 iwe.cmd = SIOCGIWMODE;
1154 if (zd->rxdata[i+14]&0x01)
1155 iwe.u.mode = IW_MODE_MASTER;
1156 else
1157 iwe.u.mode = IW_MODE_ADHOC;
ccc58057
DM		 1158 cev = iwe_stream_add_event(info, cev, end_buf,
1159 &iwe, IW_EV_UINT_LEN);
1da177e4
LT		 1160
1161 iwe.cmd = SIOCGIWFREQ;
1162 iwe.u.freq.m = zd->rxdata[i+0];
1163 iwe.u.freq.e = 0;
ccc58057
DM		 1164 cev = iwe_stream_add_event(info, cev, end_buf,
1165 &iwe, IW_EV_FREQ_LEN);
1da177e4
LT		 1166
1167 iwe.cmd = SIOCGIWRATE;
1168 iwe.u.bitrate.fixed = 0;
1169 iwe.u.bitrate.disabled = 0;
1170 for (j=0; j<10; j++) if (zd->rxdata[i+50+j]) {
1171 iwe.u.bitrate.value = (zd->rxdata[i+50+j]&0x7f)*500000;
ccc58057
DM		 1172 cev = iwe_stream_add_event(info, cev, end_buf,
1173 &iwe, IW_EV_PARAM_LEN);
1da177e4
LT		 1174 }
1175
1176 iwe.cmd = SIOCGIWENCODE;
1177 iwe.u.data.length = 0;
1178 if (zd->rxdata[i+14]&0x10)
1179 iwe.u.data.flags = IW_ENCODE_ENABLED;
1180 else
1181 iwe.u.data.flags = IW_ENCODE_DISABLED;
ccc58057 1182 cev = iwe_stream_add_point(info, cev, end_buf, &iwe, NULL);
1da177e4
LT		 1183
1184 iwe.cmd = IWEVQUAL;
1185 iwe.u.qual.qual = zd->rxdata[i+4];
1186 iwe.u.qual.noise= zd->rxdata[i+2]/10-100;
1187 iwe.u.qual.level = (256+zd->rxdata[i+4]*100)/255-100;
1188 iwe.u.qual.updated = 7;
ccc58057
DM		 1189 cev = iwe_stream_add_event(info, cev, end_buf,
1190 &iwe, IW_EV_QUAL_LEN);
1da177e4
LT		 1191 }
1192
1193 if (!enabled_save)
1194 zd1201_disable(zd);
1195
1196 srq->length = cev - extra;
1197 srq->flags = 0;
1198
1199 return 0;
1200}
1201
1202static int zd1201_set_essid(struct net_device *dev,
1203 struct iw_request_info *info, struct iw_point *data, char *essid)
1204{
3d29b0c3 1205 struct zd1201 *zd = netdev_priv(dev);
1da177e4
LT		 1206
1207 if (data->length > IW_ESSID_MAX_SIZE)
1208 return -EINVAL;
1209 if (data->length < 1)
1210 data->length = 1;
22b99262 1211 zd->essidlen = data->length;
1da177e4
LT		 1212 memset(zd->essid, 0, IW_ESSID_MAX_SIZE+1);
1213 memcpy(zd->essid, essid, data->length);
1214 return zd1201_join(zd, zd->essid, zd->essidlen);
1215}
1216
1217static int zd1201_get_essid(struct net_device *dev,
1218 struct iw_request_info *info, struct iw_point *data, char *essid)
1219{
3d29b0c3 1220 struct zd1201 *zd = netdev_priv(dev);
1da177e4
LT		 1221
1222 memcpy(essid, zd->essid, zd->essidlen);
1223 data->flags = 1;
1224 data->length = zd->essidlen;
1225
1226 return 0;
1227}
1228
1229static int zd1201_get_nick(struct net_device *dev, struct iw_request_info *info,
1230 struct iw_point *data, char *nick)
1231{
1232 strcpy(nick, "zd1201");
1233 data->flags = 1;
1234 data->length = strlen(nick);
1235 return 0;
1236}
1237
1238static int zd1201_set_rate(struct net_device *dev,
1239 struct iw_request_info *info, struct iw_param *rrq, char *extra)
1240{
3d29b0c3 1241 struct zd1201 *zd = netdev_priv(dev);
1da177e4
LT		 1242 short rate;
1243 int err;
1244
1245 switch (rrq->value) {
1246 case 1000000:
1247 rate = ZD1201_RATEB1;
1248 break;
1249 case 2000000:
1250 rate = ZD1201_RATEB2;
1251 break;
1252 case 5500000:
1253 rate = ZD1201_RATEB5;
1254 break;
1255 case 11000000:
1256 default:
1257 rate = ZD1201_RATEB11;
1258 break;
1259 }
1260 if (!rrq->fixed) { /* Also enable all lower bitrates */
1261 rate |= rate-1;
1262 }
2a806340 1263
1da177e4
LT		 1264 err = zd1201_setconfig16(zd, ZD1201_RID_TXRATECNTL, rate);
1265 if (err)
1266 return err;
1267
1268 return zd1201_mac_reset(zd);
1269}
1270
1271static int zd1201_get_rate(struct net_device *dev,
1272 struct iw_request_info *info, struct iw_param *rrq, char *extra)
1273{
3d29b0c3 1274 struct zd1201 *zd = netdev_priv(dev);
1da177e4
LT		 1275 short rate;
1276 int err;
1277
1278 err = zd1201_getconfig16(zd, ZD1201_RID_CURRENTTXRATE, &rate);
1279 if (err)
1280 return err;
1281
1282 switch(rate) {
1283 case 1:
1284 rrq->value = 1000000;
1285 break;
1286 case 2:
1287 rrq->value = 2000000;
1288 break;
1289 case 5:
1290 rrq->value = 5500000;
1291 break;
1292 case 11:
1293 rrq->value = 11000000;
1294 break;
1295 default:
1296 rrq->value = 0;
1297 }
1298 rrq->fixed = 0;
1299 rrq->disabled = 0;
1300
1301 return 0;
1302}
1303
1304static int zd1201_set_rts(struct net_device *dev, struct iw_request_info *info,
1305 struct iw_param *rts, char *extra)
1306{
3d29b0c3 1307 struct zd1201 *zd = netdev_priv(dev);
1da177e4
LT		 1308 int err;
1309 short val = rts->value;
1310
1311 if (rts->disabled || !rts->fixed)
1312 val = ZD1201_RTSMAX;
1313 if (val > ZD1201_RTSMAX)
1314 return -EINVAL;
1315 if (val < 0)
1316 return -EINVAL;
1317
1318 err = zd1201_setconfig16(zd, ZD1201_RID_CNFRTSTHRESHOLD, val);
1319 if (err)
1320 return err;
1321 return zd1201_mac_reset(zd);
1322}
1323
1324static int zd1201_get_rts(struct net_device *dev, struct iw_request_info *info,
1325 struct iw_param *rts, char *extra)
1326{
3d29b0c3 1327 struct zd1201 *zd = netdev_priv(dev);
1da177e4
LT		 1328 short rtst;
1329 int err;
1330
1331 err = zd1201_getconfig16(zd, ZD1201_RID_CNFRTSTHRESHOLD, &rtst);
1332 if (err)
1333 return err;
1334 rts->value = rtst;
1335 rts->disabled = (rts->value == ZD1201_RTSMAX);
1336 rts->fixed = 1;
1337
1338 return 0;
1339}
1340
1341static int zd1201_set_frag(struct net_device *dev, struct iw_request_info *info,
1342 struct iw_param *frag, char *extra)
1343{
3d29b0c3 1344 struct zd1201 *zd = netdev_priv(dev);
1da177e4
LT		 1345 int err;
1346 short val = frag->value;
1347
1348 if (frag->disabled || !frag->fixed)
1349 val = ZD1201_FRAGMAX;
1350 if (val > ZD1201_FRAGMAX)
1351 return -EINVAL;
1352 if (val < ZD1201_FRAGMIN)
1353 return -EINVAL;
1354 if (val & 1)
1355 return -EINVAL;
1356 err = zd1201_setconfig16(zd, ZD1201_RID_CNFFRAGTHRESHOLD, val);
1357 if (err)
1358 return err;
1359 return zd1201_mac_reset(zd);
1360}
1361
1362static int zd1201_get_frag(struct net_device *dev, struct iw_request_info *info,
1363 struct iw_param *frag, char *extra)
1364{
3d29b0c3 1365 struct zd1201 *zd = netdev_priv(dev);
1da177e4
LT		 1366 short fragt;
1367 int err;
1368
1369 err = zd1201_getconfig16(zd, ZD1201_RID_CNFFRAGTHRESHOLD, &fragt);
1370 if (err)
1371 return err;
1372 frag->value = fragt;
1373 frag->disabled = (frag->value == ZD1201_FRAGMAX);
1374 frag->fixed = 1;
1375
1376 return 0;
1377}
1378
1379static int zd1201_set_retry(struct net_device *dev,
1380 struct iw_request_info *info, struct iw_param *rrq, char *extra)
1381{
1382 return 0;
1383}
1384
1385static int zd1201_get_retry(struct net_device *dev,
1386 struct iw_request_info *info, struct iw_param *rrq, char *extra)
1387{
1388 return 0;
1389}
1390
1391static int zd1201_set_encode(struct net_device *dev,
1392 struct iw_request_info *info, struct iw_point *erq, char *key)
1393{
3d29b0c3 1394 struct zd1201 *zd = netdev_priv(dev);
1da177e4
LT		 1395 short i;
1396 int err, rid;
1397
1398 if (erq->length > ZD1201_MAXKEYLEN)
1399 return -EINVAL;
1400
1401 i = (erq->flags & IW_ENCODE_INDEX)-1;
1402 if (i == -1) {
1403 err = zd1201_getconfig16(zd,ZD1201_RID_CNFDEFAULTKEYID,&i);
1404 if (err)
1405 return err;
1406 } else {
1407 err = zd1201_setconfig16(zd, ZD1201_RID_CNFDEFAULTKEYID, i);
1408 if (err)
1409 return err;
1410 }
1411
1412 if (i < 0 || i >= ZD1201_NUMKEYS)
1413 return -EINVAL;
1414
1415 rid = ZD1201_RID_CNFDEFAULTKEY0 + i;
1416 err = zd1201_setconfig(zd, rid, key, erq->length, 1);
1417 if (err)
1418 return err;
1419 zd->encode_keylen[i] = erq->length;
1420 memcpy(zd->encode_keys[i], key, erq->length);
1421
1422 i=0;
1423 if (!(erq->flags & IW_ENCODE_DISABLED & IW_ENCODE_MODE)) {
1424 i |= 0x01;
1425 zd->encode_enabled = 1;
1426 } else
1427 zd->encode_enabled = 0;
1428 if (erq->flags & IW_ENCODE_RESTRICTED & IW_ENCODE_MODE) {
1429 i |= 0x02;
1430 zd->encode_restricted = 1;
1431 } else
1432 zd->encode_restricted = 0;
1433 err = zd1201_setconfig16(zd, ZD1201_RID_CNFWEBFLAGS, i);
1434 if (err)
1435 return err;
1436
1437 if (zd->encode_enabled)
1438 i = ZD1201_CNFAUTHENTICATION_SHAREDKEY;
1439 else
1440 i = ZD1201_CNFAUTHENTICATION_OPENSYSTEM;
1441 err = zd1201_setconfig16(zd, ZD1201_RID_CNFAUTHENTICATION, i);
1442 if (err)
1443 return err;
1444
1445 return zd1201_mac_reset(zd);
1446}
1447
1448static int zd1201_get_encode(struct net_device *dev,
1449 struct iw_request_info *info, struct iw_point *erq, char *key)
1450{
3d29b0c3 1451 struct zd1201 *zd = netdev_priv(dev);
1da177e4
LT		 1452 short i;
1453 int err;
1454
1455 if (zd->encode_enabled)
1456 erq->flags = IW_ENCODE_ENABLED;
1457 else
1458 erq->flags = IW_ENCODE_DISABLED;
1459 if (zd->encode_restricted)
1460 erq->flags |= IW_ENCODE_RESTRICTED;
1461 else
1462 erq->flags |= IW_ENCODE_OPEN;
1463
1464 i = (erq->flags & IW_ENCODE_INDEX) -1;
1465 if (i == -1) {
1466 err = zd1201_getconfig16(zd, ZD1201_RID_CNFDEFAULTKEYID, &i);
1467 if (err)
1468 return err;
1469 }
1470 if (i<0 || i>= ZD1201_NUMKEYS)
1471 return -EINVAL;
1472
1473 erq->flags |= i+1;
2a806340 1474
1da177e4
LT		 1475 erq->length = zd->encode_keylen[i];
1476 memcpy(key, zd->encode_keys[i], erq->length);
1477
1478 return 0;
1479}
1480
1481static int zd1201_set_power(struct net_device *dev,
1482 struct iw_request_info *info, struct iw_param *vwrq, char *extra)
1483{
3d29b0c3 1484 struct zd1201 *zd = netdev_priv(dev);
1da177e4
LT		 1485 short enabled, duration, level;
1486 int err;
1487
1488 enabled = vwrq->disabled ? 0 : 1;
1489 if (enabled) {
1490 if (vwrq->flags & IW_POWER_PERIOD) {
1491 duration = vwrq->value;
1492 err = zd1201_setconfig16(zd,
1493 ZD1201_RID_CNFMAXSLEEPDURATION, duration);
1494 if (err)
1495 return err;
1496 goto out;
1497 }
1498 if (vwrq->flags & IW_POWER_TIMEOUT) {
1499 err = zd1201_getconfig16(zd,
1500 ZD1201_RID_CNFMAXSLEEPDURATION, &duration);
1501 if (err)
1502 return err;
1503 level = vwrq->value * 4 / duration;
1504 if (level > 4)
1505 level = 4;
1506 if (level < 0)
1507 level = 0;
1508 err = zd1201_setconfig16(zd, ZD1201_RID_CNFPMEPS,
1509 level);
1510 if (err)
1511 return err;
1512 goto out;
1513 }
1514 return -EINVAL;
1515 }
1516out:
2a806340 1517 return zd1201_setconfig16(zd, ZD1201_RID_CNFPMENABLED, enabled);
1da177e4
LT		 1518}
1519
1520static int zd1201_get_power(struct net_device *dev,
1521 struct iw_request_info *info, struct iw_param *vwrq, char *extra)
1522{
3d29b0c3 1523 struct zd1201 *zd = netdev_priv(dev);
1da177e4
LT		 1524 short enabled, level, duration;
1525 int err;
1526
1527 err = zd1201_getconfig16(zd, ZD1201_RID_CNFPMENABLED, &enabled);
1528 if (err)
1529 return err;
1530 err = zd1201_getconfig16(zd, ZD1201_RID_CNFPMEPS, &level);
1531 if (err)
1532 return err;
1533 err = zd1201_getconfig16(zd, ZD1201_RID_CNFMAXSLEEPDURATION, &duration);
1534 if (err)
1535 return err;
1536 vwrq->disabled = enabled ? 0 : 1;
1537 if (vwrq->flags & IW_POWER_TYPE) {
1538 if (vwrq->flags & IW_POWER_PERIOD) {
1539 vwrq->value = duration;
1540 vwrq->flags = IW_POWER_PERIOD;
1541 } else {
1542 vwrq->value = duration * level / 4;
1543 vwrq->flags = IW_POWER_TIMEOUT;
1544 }
1545 }
1546 if (vwrq->flags & IW_POWER_MODE) {
1547 if (enabled && level)
1548 vwrq->flags = IW_POWER_UNICAST_R;
1549 else
1550 vwrq->flags = IW_POWER_ALL_R;
1551 }
1552
1553 return 0;
1554}
1555
1556
1557static const iw_handler zd1201_iw_handler[] =
1558{
1559 (iw_handler) zd1201_config_commit, /* SIOCSIWCOMMIT */
1560 (iw_handler) zd1201_get_name, /* SIOCGIWNAME */
1561 (iw_handler) NULL, /* SIOCSIWNWID */
1562 (iw_handler) NULL, /* SIOCGIWNWID */
1563 (iw_handler) zd1201_set_freq, /* SIOCSIWFREQ */
1564 (iw_handler) zd1201_get_freq, /* SIOCGIWFREQ */
1565 (iw_handler) zd1201_set_mode, /* SIOCSIWMODE */
1566 (iw_handler) zd1201_get_mode, /* SIOCGIWMODE */
1567 (iw_handler) NULL, /* SIOCSIWSENS */
1568 (iw_handler) NULL, /* SIOCGIWSENS */
1569 (iw_handler) NULL, /* SIOCSIWRANGE */
1570 (iw_handler) zd1201_get_range, /* SIOCGIWRANGE */
1571 (iw_handler) NULL, /* SIOCSIWPRIV */
1572 (iw_handler) NULL, /* SIOCGIWPRIV */
1573 (iw_handler) NULL, /* SIOCSIWSTATS */
1574 (iw_handler) NULL, /* SIOCGIWSTATS */
1575 (iw_handler) NULL, /* SIOCSIWSPY */
1576 (iw_handler) NULL, /* SIOCGIWSPY */
1577 (iw_handler) NULL, /* -- hole -- */
1578 (iw_handler) NULL, /* -- hole -- */
1579 (iw_handler) NULL/*zd1201_set_wap*/, /* SIOCSIWAP */
1580 (iw_handler) zd1201_get_wap, /* SIOCGIWAP */
1581 (iw_handler) NULL, /* -- hole -- */
1582 (iw_handler) NULL, /* SIOCGIWAPLIST */
1583 (iw_handler) zd1201_set_scan, /* SIOCSIWSCAN */
1584 (iw_handler) zd1201_get_scan, /* SIOCGIWSCAN */
1585 (iw_handler) zd1201_set_essid, /* SIOCSIWESSID */
1586 (iw_handler) zd1201_get_essid, /* SIOCGIWESSID */
1587 (iw_handler) NULL, /* SIOCSIWNICKN */
1588 (iw_handler) zd1201_get_nick, /* SIOCGIWNICKN */
1589 (iw_handler) NULL, /* -- hole -- */
1590 (iw_handler) NULL, /* -- hole -- */
1591 (iw_handler) zd1201_set_rate, /* SIOCSIWRATE */
1592 (iw_handler) zd1201_get_rate, /* SIOCGIWRATE */
1593 (iw_handler) zd1201_set_rts, /* SIOCSIWRTS */
1594 (iw_handler) zd1201_get_rts, /* SIOCGIWRTS */
1595 (iw_handler) zd1201_set_frag, /* SIOCSIWFRAG */
1596 (iw_handler) zd1201_get_frag, /* SIOCGIWFRAG */
1597 (iw_handler) NULL, /* SIOCSIWTXPOW */
1598 (iw_handler) NULL, /* SIOCGIWTXPOW */
1599 (iw_handler) zd1201_set_retry, /* SIOCSIWRETRY */
1600 (iw_handler) zd1201_get_retry, /* SIOCGIWRETRY */
1601 (iw_handler) zd1201_set_encode, /* SIOCSIWENCODE */
1602 (iw_handler) zd1201_get_encode, /* SIOCGIWENCODE */
1603 (iw_handler) zd1201_set_power, /* SIOCSIWPOWER */
1604 (iw_handler) zd1201_get_power, /* SIOCGIWPOWER */
1605};
1606
1607static int zd1201_set_hostauth(struct net_device *dev,
1608 struct iw_request_info *info, struct iw_param *rrq, char *extra)
1609{
3d29b0c3 1610 struct zd1201 *zd = netdev_priv(dev);
1da177e4
LT		 1611
1612 if (!zd->ap)
1613 return -EOPNOTSUPP;
1614
2a806340 1615 return zd1201_setconfig16(zd, ZD1201_RID_CNFHOSTAUTH, rrq->value);
1da177e4
LT		 1616}
1617
1618static int zd1201_get_hostauth(struct net_device *dev,
1619 struct iw_request_info *info, struct iw_param *rrq, char *extra)
1620{
3d29b0c3 1621 struct zd1201 *zd = netdev_priv(dev);
1da177e4
LT		 1622 short hostauth;
1623 int err;
1624
1625 if (!zd->ap)
1626 return -EOPNOTSUPP;
1627
1628 err = zd1201_getconfig16(zd, ZD1201_RID_CNFHOSTAUTH, &hostauth);
1629 if (err)
1630 return err;
1631 rrq->value = hostauth;
1632 rrq->fixed = 1;
1633
1634 return 0;
1635}
1636
1637static int zd1201_auth_sta(struct net_device *dev,
1638 struct iw_request_info *info, struct sockaddr *sta, char *extra)
1639{
3d29b0c3 1640 struct zd1201 *zd = netdev_priv(dev);
1da177e4
LT		 1641 unsigned char buffer[10];
1642
1643 if (!zd->ap)
1644 return -EOPNOTSUPP;
1645
1646 memcpy(buffer, sta->sa_data, ETH_ALEN);
1647 *(short*)(buffer+6) = 0; /* 0==success, 1==failure */
1648 *(short*)(buffer+8) = 0;
1649
1650 return zd1201_setconfig(zd, ZD1201_RID_AUTHENTICATESTA, buffer, 10, 1);
1651}
1652
1653static int zd1201_set_maxassoc(struct net_device *dev,
1654 struct iw_request_info *info, struct iw_param *rrq, char *extra)
1655{
3d29b0c3 1656 struct zd1201 *zd = netdev_priv(dev);
1da177e4
LT		 1657 int err;
1658
1659 if (!zd->ap)
1660 return -EOPNOTSUPP;
1661
1662 err = zd1201_setconfig16(zd, ZD1201_RID_CNFMAXASSOCSTATIONS, rrq->value);
1663 if (err)
1664 return err;
1665 return 0;
1666}
1667
1668static int zd1201_get_maxassoc(struct net_device *dev,
1669 struct iw_request_info *info, struct iw_param *rrq, char *extra)
1670{
3d29b0c3 1671 struct zd1201 *zd = netdev_priv(dev);
1da177e4
LT		 1672 short maxassoc;
1673 int err;
1674
1675 if (!zd->ap)
1676 return -EOPNOTSUPP;
1677
1678 err = zd1201_getconfig16(zd, ZD1201_RID_CNFMAXASSOCSTATIONS, &maxassoc);
1679 if (err)
1680 return err;
1681 rrq->value = maxassoc;
1682 rrq->fixed = 1;
1683
1684 return 0;
1685}
1686
1687static const iw_handler zd1201_private_handler[] = {
1688 (iw_handler) zd1201_set_hostauth, /* ZD1201SIWHOSTAUTH */
1689 (iw_handler) zd1201_get_hostauth, /* ZD1201GIWHOSTAUTH */
1690 (iw_handler) zd1201_auth_sta, /* ZD1201SIWAUTHSTA */
1691 (iw_handler) NULL, /* nothing to get */
1692 (iw_handler) zd1201_set_maxassoc, /* ZD1201SIMAXASSOC */
1693 (iw_handler) zd1201_get_maxassoc, /* ZD1201GIMAXASSOC */
1694};
1695
1696static const struct iw_priv_args zd1201_private_args[] = {
1697 { ZD1201SIWHOSTAUTH, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
1698 IW_PRIV_TYPE_NONE, "sethostauth" },
1699 { ZD1201GIWHOSTAUTH, IW_PRIV_TYPE_NONE,
1700 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "gethostauth" },
52950ed4 1701 { ZD1201SIWAUTHSTA, IW_PRIV_TYPE_ADDR | IW_PRIV_SIZE_FIXED | 1,
1da177e4
LT		 1702 IW_PRIV_TYPE_NONE, "authstation" },
1703 { ZD1201SIWMAXASSOC, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
1704 IW_PRIV_TYPE_NONE, "setmaxassoc" },
1705 { ZD1201GIWMAXASSOC, IW_PRIV_TYPE_NONE,
1706 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getmaxassoc" },
1707};
1708
1709static const struct iw_handler_def zd1201_iw_handlers = {
52950ed4
TK		 1710 .num_standard = ARRAY_SIZE(zd1201_iw_handler),
1711 .num_private = ARRAY_SIZE(zd1201_private_handler),
1712 .num_private_args = ARRAY_SIZE(zd1201_private_args),
1da177e4
LT		 1713 .standard = (iw_handler *)zd1201_iw_handler,
1714 .private = (iw_handler *)zd1201_private_handler,
1715 .private_args = (struct iw_priv_args *) zd1201_private_args,
00736025 1716 .get_wireless_stats = zd1201_get_wireless_stats,
1da177e4
LT		 1717};
1718
2bd9f54d
SH		 1719static const struct net_device_ops zd1201_netdev_ops = {
1720 .ndo_open = zd1201_net_open,
1721 .ndo_stop = zd1201_net_stop,
1722 .ndo_start_xmit = zd1201_hard_start_xmit,
1723 .ndo_tx_timeout = zd1201_tx_timeout,
1724 .ndo_set_multicast_list = zd1201_set_multicast,
1725 .ndo_set_mac_address = zd1201_set_mac_address,
1726 .ndo_change_mtu = eth_change_mtu,
2bd9f54d
SH		 1727 .ndo_validate_addr = eth_validate_addr,
1728};
1729
2e0a6b8c
AB		 1730static int zd1201_probe(struct usb_interface *interface,
1731 const struct usb_device_id *id)
1da177e4
LT		 1732{
1733 struct zd1201 *zd;
3d29b0c3 1734 struct net_device *dev;
1da177e4 1735 struct usb_device *usb;
2a806340 1736 int err;
1da177e4
LT		 1737 short porttype;
1738 char buf[IW_ESSID_MAX_SIZE+2];
1739
1740 usb = interface_to_usbdev(interface);
1741
3d29b0c3
JL		 1742 dev = alloc_etherdev(sizeof(*zd));
1743 if (!dev)
1da177e4 1744 return -ENOMEM;
3d29b0c3
JL		 1745 zd = netdev_priv(dev);
1746 zd->dev = dev;
1747
1da177e4
LT		 1748 zd->ap = ap;
1749 zd->usb = usb;
1750 zd->removed = 0;
1751 init_waitqueue_head(&zd->rxdataq);
1752 INIT_HLIST_HEAD(&zd->fraglist);
1753
1754 err = zd1201_fw_upload(usb, zd->ap);
1755 if (err) {
1756 dev_err(&usb->dev, "zd1201 firmware upload failed: %d\n", err);
1757 goto err_zd;
1758 }
1759
1760 zd->endp_in = 1;
1761 zd->endp_out = 1;
1762 zd->endp_out2 = 2;
1763 zd->rx_urb = usb_alloc_urb(0, GFP_KERNEL);
1764 zd->tx_urb = usb_alloc_urb(0, GFP_KERNEL);
1765 if (!zd->rx_urb || !zd->tx_urb)
1766 goto err_zd;
1767
2a806340 1768 mdelay(100);
1da177e4
LT		 1769 err = zd1201_drvr_start(zd);
1770 if (err)
1771 goto err_zd;
1772
1773 err = zd1201_setconfig16(zd, ZD1201_RID_CNFMAXDATALEN, 2312);
1774 if (err)
1775 goto err_start;
1776
1777 err = zd1201_setconfig16(zd, ZD1201_RID_TXRATECNTL,
1778 ZD1201_RATEB1 | ZD1201_RATEB2 | ZD1201_RATEB5 | ZD1201_RATEB11);
1779 if (err)
1780 goto err_start;
1781
2bd9f54d 1782 dev->netdev_ops = &zd1201_netdev_ops;
22bc1ce4 1783 dev->wireless_handlers = &zd1201_iw_handlers;
3d29b0c3 1784 dev->watchdog_timeo = ZD1201_TX_TIMEOUT;
3d29b0c3 1785 strcpy(dev->name, "wlan%d");
1da177e4
LT		 1786
1787 err = zd1201_getconfig(zd, ZD1201_RID_CNFOWNMACADDR,
3d29b0c3 1788 dev->dev_addr, dev->addr_len);
1da177e4 1789 if (err)
3d29b0c3 1790 goto err_start;
1da177e4
LT		 1791
1792 /* Set wildcard essid to match zd->essid */
1793 *(__le16 *)buf = cpu_to_le16(0);
1794 err = zd1201_setconfig(zd, ZD1201_RID_CNFDESIREDSSID, buf,
1795 IW_ESSID_MAX_SIZE+2, 1);
1796 if (err)
3d29b0c3 1797 goto err_start;
1da177e4
LT		 1798
1799 if (zd->ap)
1800 porttype = ZD1201_PORTTYPE_AP;
1801 else
1802 porttype = ZD1201_PORTTYPE_BSS;
1803 err = zd1201_setconfig16(zd, ZD1201_RID_CNFPORTTYPE, porttype);
1804 if (err)
3d29b0c3 1805 goto err_start;
1da177e4 1806
3d29b0c3 1807 SET_NETDEV_DEV(dev, &usb->dev);
a083dec0 1808
3d29b0c3 1809 err = register_netdev(dev);
1da177e4 1810 if (err)
3d29b0c3 1811 goto err_start;
1da177e4 1812 dev_info(&usb->dev, "%s: ZD1201 USB Wireless interface\n",
3d29b0c3 1813 dev->name);
2a806340 1814
1da177e4 1815 usb_set_intfdata(interface, zd);
d91928e9
PM		 1816 zd1201_enable(zd); /* zd1201 likes to startup enabled, */
1817 zd1201_disable(zd); /* interfering with all the wifis in range */
1da177e4
LT		 1818 return 0;
1819
1da177e4
LT		 1820err_start:
1821 /* Leave the device in reset state */
1822 zd1201_docmd(zd, ZD1201_CMDCODE_INIT, 0, 0, 0);
1823err_zd:
f988f272
MK		 1824 usb_free_urb(zd->tx_urb);
1825 usb_free_urb(zd->rx_urb);
3d29b0c3 1826 free_netdev(dev);
1da177e4
LT		 1827 return err;
1828}
1829
2e0a6b8c 1830static void zd1201_disconnect(struct usb_interface *interface)
1da177e4
LT		 1831{
1832 struct zd1201 *zd=(struct zd1201 *)usb_get_intfdata(interface);
1833 struct hlist_node *node, *node2;
1834 struct zd1201_frag *frag;
1835
1836 if (!zd)
1837 return;
1838 usb_set_intfdata(interface, NULL);
1da177e4
LT		 1839
1840 hlist_for_each_entry_safe(frag, node, node2, &zd->fraglist, fnode) {
1841 hlist_del_init(&frag->fnode);
1842 kfree_skb(frag->skb);
1843 kfree(frag);
1844 }
1845
1846 if (zd->tx_urb) {
1847 usb_kill_urb(zd->tx_urb);
1848 usb_free_urb(zd->tx_urb);
1849 }
1850 if (zd->rx_urb) {
1851 usb_kill_urb(zd->rx_urb);
1852 usb_free_urb(zd->rx_urb);
1853 }
b88a2a22
WC		 1854
1855 if (zd->dev) {
1856 unregister_netdev(zd->dev);
1857 free_netdev(zd->dev);
1858 }
1da177e4
LT		 1859}
1860
a3c900bb
CL		 1861#ifdef CONFIG_PM
1862
1863static int zd1201_suspend(struct usb_interface *interface,
1864 pm_message_t message)
1865{
1866 struct zd1201 *zd = usb_get_intfdata(interface);
1867
1868 netif_device_detach(zd->dev);
1869
1870 zd->was_enabled = zd->mac_enabled;
1871
1872 if (zd->was_enabled)
1873 return zd1201_disable(zd);
1874 else
1875 return 0;
1876}
1877
1878static int zd1201_resume(struct usb_interface *interface)
1879{
1880 struct zd1201 *zd = usb_get_intfdata(interface);
1881
f58f97fa
CL		 1882 if (!zd || !zd->dev)
1883 return -ENODEV;
1884
a3c900bb
CL		 1885 netif_device_attach(zd->dev);
1886
1887 if (zd->was_enabled)
1888 return zd1201_enable(zd);
1889 else
1890 return 0;
1891}
1892
1893#else
1894
1895#define zd1201_suspend NULL
1896#define zd1201_resume NULL
1897
1898#endif
1899
2e0a6b8c 1900static struct usb_driver zd1201_usb = {
1da177e4
LT		 1901 .name = "zd1201",
1902 .probe = zd1201_probe,
1903 .disconnect = zd1201_disconnect,
1904 .id_table = zd1201_table,
a3c900bb
CL		 1905 .suspend = zd1201_suspend,
1906 .resume = zd1201_resume,
1da177e4
LT		 1907};
1908
1909static int __init zd1201_init(void)
1910{
1911 return usb_register(&zd1201_usb);
1912}
1913
1914static void __exit zd1201_cleanup(void)
1915{
1916 usb_deregister(&zd1201_usb);
1917}
1918
1919module_init(zd1201_init);
1920module_exit(zd1201_cleanup);
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