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net: fix network drivers ndo_start_xmit() return values (part 2)
[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>
17#include <linux/netdevice.h>
18#include <linux/etherdevice.h>
19#include <linux/wireless.h>
2c706002 20#include <linux/ieee80211.h>
1da177e4
LT		 21#include <net/iw_handler.h>
22#include <linux/string.h>
23#include <linux/if_arp.h>
24#include <linux/firmware.h>
1da177e4
LT		 25#include "zd1201.h"
26
27static struct usb_device_id zd1201_table[] = {
28 {USB_DEVICE(0x0586, 0x3400)}, /* Peabird Wireless USB Adapter */
29 {USB_DEVICE(0x0ace, 0x1201)}, /* ZyDAS ZD1201 Wireless USB Adapter */
30 {USB_DEVICE(0x050d, 0x6051)}, /* Belkin F5D6051 usb adapter */
31 {USB_DEVICE(0x0db0, 0x6823)}, /* MSI UB11B usb adapter */
f2908097 32 {USB_DEVICE(0x1044, 0x8005)}, /* GIGABYTE GN-WLBZ201 usb adapter */
1da177e4
LT		 33 {}
34};
35
2a806340 36static int ap; /* Are we an AP or a normal station? */
1da177e4
LT		 37
38#define ZD1201_VERSION "0.15"
39
40MODULE_AUTHOR("Jeroen Vreeken <pe1rxq@amsat.org>");
41MODULE_DESCRIPTION("Driver for ZyDAS ZD1201 based USB Wireless adapters");
42MODULE_VERSION(ZD1201_VERSION);
43MODULE_LICENSE("GPL");
44module_param(ap, int, 0);
45MODULE_PARM_DESC(ap, "If non-zero Access Point firmware will be loaded");
46MODULE_DEVICE_TABLE(usb, zd1201_table);
47
48
2e0a6b8c 49static int zd1201_fw_upload(struct usb_device *dev, int apfw)
1da177e4
LT		 50{
51 const struct firmware *fw_entry;
45ef0bdb 52 const char *data;
1da177e4
LT		 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");
2a806340 68 dev_err(&dev->dev, "Goto http://linux-lc100020.sourceforge.net for more info.\n");
1da177e4
LT		 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;
2a806340 97
1da177e4
LT		 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;
2a806340 102
1da177e4
LT		 103 if (ret & 0x80) {
104 err = -EIO;
105 goto exit;
106 }
107
108 err = 0;
109exit:
1bc3c9e1 110 kfree(buf);
1da177e4
LT		 111 release_firmware(fw_entry);
112 return err;
113}
114
7d12e780 115static void zd1201_usbfree(struct urb *urb)
1da177e4
LT		 116{
117 struct zd1201 *zd = urb->context;
118
119 switch(urb->status) {
120 case -EILSEQ:
121 case -ENODEV:
38e2bfc9 122 case -ETIME:
1da177e4
LT		 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*/
2e0a6b8c
AB		 146static int zd1201_docmd(struct zd1201 *zd, int cmd, int parm0,
147 int parm1, int parm2)
1da177e4
LT		 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),
2a806340 169 command, 16, zd1201_usbfree, zd);
1da177e4
LT		 170 ret = usb_submit_urb(urb, GFP_ATOMIC);
171 if (ret) {
172 kfree(command);
173 usb_free_urb(urb);
174 }
2a806340 175
1da177e4
LT		 176 return ret;
177}
178
179/* Callback after sending out a packet */
7d12e780 180static void zd1201_usbtx(struct urb *urb)
1da177e4
LT		 181{
182 struct zd1201 *zd = urb->context;
183 netif_wake_queue(zd->dev);
184 return;
185}
186
093cf723 187/* Incoming data */
7d12e780 188static void zd1201_usbrx(struct urb *urb)
1da177e4
LT		 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
683f8c9e
ES		 196 if (!zd)
197 return;
1da177e4
LT		 198
199 switch(urb->status) {
200 case -EILSEQ:
201 case -ENODEV:
38e2bfc9 202 case -ETIME:
1da177e4
LT		 203 case -ENOENT:
204 case -EPIPE:
205 case -EOVERFLOW:
206 case -ESHUTDOWN:
207 dev_warn(&zd->usb->dev, "%s: rx urb failed: %d\n",
208 zd->dev->name, urb->status);
209 free = 1;
210 goto exit;
211 }
212
213 if (urb->status != 0 || urb->actual_length == 0)
214 goto resubmit;
215
216 type = data[0];
217 if (type == ZD1201_PACKET_EVENTSTAT || type == ZD1201_PACKET_RESOURCE) {
218 memcpy(zd->rxdata, data, urb->actual_length);
219 zd->rxlen = urb->actual_length;
220 zd->rxdatas = 1;
221 wake_up(&zd->rxdataq);
222 }
223 /* Info frame */
224 if (type == ZD1201_PACKET_INQUIRE) {
225 int i = 0;
226 unsigned short infotype, framelen, copylen;
227 framelen = le16_to_cpu(*(__le16*)&data[4]);
228 infotype = le16_to_cpu(*(__le16*)&data[6]);
229
230 if (infotype == ZD1201_INF_LINKSTATUS) {
231 short linkstatus;
232
233 linkstatus = le16_to_cpu(*(__le16*)&data[8]);
234 switch(linkstatus) {
235 case 1:
236 netif_carrier_on(zd->dev);
237 break;
238 case 2:
239 netif_carrier_off(zd->dev);
240 break;
241 case 3:
242 netif_carrier_off(zd->dev);
243 break;
244 case 4:
245 netif_carrier_on(zd->dev);
246 break;
247 default:
248 netif_carrier_off(zd->dev);
249 }
250 goto resubmit;
251 }
252 if (infotype == ZD1201_INF_ASSOCSTATUS) {
253 short status = le16_to_cpu(*(__le16*)(data+8));
254 int event;
255 union iwreq_data wrqu;
256
257 switch (status) {
258 case ZD1201_ASSOCSTATUS_STAASSOC:
259 case ZD1201_ASSOCSTATUS_REASSOC:
260 event = IWEVREGISTERED;
261 break;
262 case ZD1201_ASSOCSTATUS_DISASSOC:
263 case ZD1201_ASSOCSTATUS_ASSOCFAIL:
264 case ZD1201_ASSOCSTATUS_AUTHFAIL:
265 default:
266 event = IWEVEXPIRED;
267 }
268 memcpy(wrqu.addr.sa_data, data+10, ETH_ALEN);
269 wrqu.addr.sa_family = ARPHRD_ETHER;
270
271 /* Send event to user space */
272 wireless_send_event(zd->dev, event, &wrqu, NULL);
273
274 goto resubmit;
275 }
276 if (infotype == ZD1201_INF_AUTHREQ) {
277 union iwreq_data wrqu;
278
279 memcpy(wrqu.addr.sa_data, data+8, ETH_ALEN);
280 wrqu.addr.sa_family = ARPHRD_ETHER;
281 /* There isn't a event that trully fits this request.
282 We assume that userspace will be smart enough to
283 see a new station being expired and sends back a
284 authstation ioctl to authorize it. */
285 wireless_send_event(zd->dev, IWEVEXPIRED, &wrqu, NULL);
286 goto resubmit;
287 }
288 /* Other infotypes are handled outside this handler */
289 zd->rxlen = 0;
290 while (i < urb->actual_length) {
291 copylen = le16_to_cpu(*(__le16*)&data[i+2]);
292 /* Sanity check, sometimes we get junk */
293 if (copylen+zd->rxlen > sizeof(zd->rxdata))
294 break;
295 memcpy(zd->rxdata+zd->rxlen, data+i+4, copylen);
296 zd->rxlen += copylen;
297 i += 64;
298 }
299 if (i >= urb->actual_length) {
300 zd->rxdatas = 1;
301 wake_up(&zd->rxdataq);
302 }
303 goto resubmit;
304 }
305 /* Actual data */
306 if (data[urb->actual_length-1] == ZD1201_PACKET_RXDATA) {
307 int datalen = urb->actual_length-1;
308 unsigned short len, fc, seq;
309 struct hlist_node *node;
310
311 len = ntohs(*(__be16 *)&data[datalen-2]);
312 if (len>datalen)
313 len=datalen;
314 fc = le16_to_cpu(*(__le16 *)&data[datalen-16]);
315 seq = le16_to_cpu(*(__le16 *)&data[datalen-24]);
316
2a806340 317 if (zd->monitor) {
1da177e4
LT		 318 if (datalen < 24)
319 goto resubmit;
320 if (!(skb = dev_alloc_skb(datalen+24)))
321 goto resubmit;
322
323 memcpy(skb_put(skb, 2), &data[datalen-16], 2);
324 memcpy(skb_put(skb, 2), &data[datalen-2], 2);
325 memcpy(skb_put(skb, 6), &data[datalen-14], 6);
326 memcpy(skb_put(skb, 6), &data[datalen-22], 6);
327 memcpy(skb_put(skb, 6), &data[datalen-8], 6);
328 memcpy(skb_put(skb, 2), &data[datalen-24], 2);
329 memcpy(skb_put(skb, len), data, len);
1da177e4 330 skb->protocol = eth_type_trans(skb, zd->dev);
22bc1ce4
SH		 331 zd->dev->stats.rx_packets++;
332 zd->dev->stats.rx_bytes += skb->len;
1da177e4
LT		 333 netif_rx(skb);
334 goto resubmit;
335 }
336
3dcefbc9
AV		 337 if ((seq & IEEE80211_SCTL_FRAG) ||
338 (fc & IEEE80211_FCTL_MOREFRAGS)) {
1da177e4
LT		 339 struct zd1201_frag *frag = NULL;
340 char *ptr;
341
342 if (datalen<14)
343 goto resubmit;
3dcefbc9 344 if ((seq & IEEE80211_SCTL_FRAG) == 0) {
81065e2f 345 frag = kmalloc(sizeof(*frag), GFP_ATOMIC);
1da177e4
LT		 346 if (!frag)
347 goto resubmit;
2c706002 348 skb = dev_alloc_skb(IEEE80211_MAX_DATA_LEN +14+2);
1da177e4
LT		 349 if (!skb) {
350 kfree(frag);
351 goto resubmit;
352 }
353 frag->skb = skb;
3dcefbc9 354 frag->seq = seq & IEEE80211_SCTL_SEQ;
1da177e4
LT		 355 skb_reserve(skb, 2);
356 memcpy(skb_put(skb, 12), &data[datalen-14], 12);
357 memcpy(skb_put(skb, 2), &data[6], 2);
358 memcpy(skb_put(skb, len), data+8, len);
359 hlist_add_head(&frag->fnode, &zd->fraglist);
360 goto resubmit;
361 }
362 hlist_for_each_entry(frag, node, &zd->fraglist, fnode)
2a806340 363 if (frag->seq == (seq&IEEE80211_SCTL_SEQ))
1da177e4
LT		 364 break;
365 if (!frag)
366 goto resubmit;
367 skb = frag->skb;
368 ptr = skb_put(skb, len);
369 if (ptr)
370 memcpy(ptr, data+8, len);
3dcefbc9 371 if (fc & IEEE80211_FCTL_MOREFRAGS)
1da177e4
LT		 372 goto resubmit;
373 hlist_del_init(&frag->fnode);
374 kfree(frag);
1da177e4
LT		 375 } else {
376 if (datalen<14)
377 goto resubmit;
378 skb = dev_alloc_skb(len + 14 + 2);
379 if (!skb)
380 goto resubmit;
381 skb_reserve(skb, 2);
382 memcpy(skb_put(skb, 12), &data[datalen-14], 12);
383 memcpy(skb_put(skb, 2), &data[6], 2);
384 memcpy(skb_put(skb, len), data+8, len);
385 }
1da177e4 386 skb->protocol = eth_type_trans(skb, zd->dev);
22bc1ce4
SH		 387 zd->dev->stats.rx_packets++;
388 zd->dev->stats.rx_bytes += skb->len;
1da177e4
LT		 389 netif_rx(skb);
390 }
391resubmit:
392 memset(data, 0, ZD1201_RXSIZE);
393
394 urb->status = 0;
395 urb->dev = zd->usb;
396 if(usb_submit_urb(urb, GFP_ATOMIC))
397 free = 1;
398
399exit:
400 if (free) {
401 zd->rxlen = 0;
402 zd->rxdatas = 1;
403 wake_up(&zd->rxdataq);
404 kfree(urb->transfer_buffer);
405 }
406 return;
407}
408
409static int zd1201_getconfig(struct zd1201 *zd, int rid, void *riddata,
410 unsigned int riddatalen)
411{
412 int err;
413 int i = 0;
414 int code;
415 int rid_fid;
416 int length;
417 unsigned char *pdata;
2a806340 418
1da177e4
LT		 419 zd->rxdatas = 0;
420 err = zd1201_docmd(zd, ZD1201_CMDCODE_ACCESS, rid, 0, 0);
421 if (err)
422 return err;
423
424 wait_event_interruptible(zd->rxdataq, zd->rxdatas);
425 if (!zd->rxlen)
426 return -EIO;
427
428 code = le16_to_cpu(*(__le16*)(&zd->rxdata[4]));
429 rid_fid = le16_to_cpu(*(__le16*)(&zd->rxdata[6]));
430 length = le16_to_cpu(*(__le16*)(&zd->rxdata[8]));
431 if (length > zd->rxlen)
432 length = zd->rxlen-6;
433
434 /* If access bit is not on, then error */
435 if ((code & ZD1201_ACCESSBIT) != ZD1201_ACCESSBIT || rid_fid != rid )
436 return -EINVAL;
437
438 /* Not enough buffer for allocating data */
439 if (riddatalen != (length - 4)) {
440 dev_dbg(&zd->usb->dev, "riddatalen mismatches, expected=%u, (packet=%u) length=%u, rid=0x%04X, rid_fid=0x%04X\n",
441 riddatalen, zd->rxlen, length, rid, rid_fid);
442 return -ENODATA;
443 }
444
445 zd->rxdatas = 0;
446 /* Issue SetRxRid commnd */
447 err = zd1201_docmd(zd, ZD1201_CMDCODE_SETRXRID, rid, 0, length);
448 if (err)
449 return err;
450
451 /* Receive RID record from resource packets */
452 wait_event_interruptible(zd->rxdataq, zd->rxdatas);
453 if (!zd->rxlen)
454 return -EIO;
455
456 if (zd->rxdata[zd->rxlen - 1] != ZD1201_PACKET_RESOURCE) {
457 dev_dbg(&zd->usb->dev, "Packet type mismatch: 0x%x not 0x3\n",
458 zd->rxdata[zd->rxlen-1]);
459 return -EINVAL;
460 }
461
462 /* Set the data pointer and received data length */
463 pdata = zd->rxdata;
464 length = zd->rxlen;
465
466 do {
2a806340 467 int actual_length;
1da177e4
LT		 468
469 actual_length = (length > 64) ? 64 : length;
470
2a806340 471 if (pdata[0] != 0x3) {
1da177e4
LT		 472 dev_dbg(&zd->usb->dev, "Rx Resource packet type error: %02X\n",
473 pdata[0]);
474 return -EINVAL;
475 }
476
477 if (actual_length != 64) {
478 /* Trim the last packet type byte */
479 actual_length--;
480 }
481
482 /* Skip the 4 bytes header (RID length and RID) */
2a806340 483 if (i == 0) {
1da177e4
LT		 484 pdata += 8;
485 actual_length -= 8;
2a806340 486 } else {
1da177e4
LT		 487 pdata += 4;
488 actual_length -= 4;
489 }
490
491 memcpy(riddata, pdata, actual_length);
492 riddata += actual_length;
493 pdata += actual_length;
494 length -= 64;
495 i++;
496 } while (length > 0);
497
498 return 0;
499}
500
501/*
502 * resreq:
503 * byte type
504 * byte sequence
505 * u16 reserved
506 * byte data[12]
507 * total: 16
508 */
509static int zd1201_setconfig(struct zd1201 *zd, int rid, void *buf, int len, int wait)
510{
511 int err;
512 unsigned char *request;
513 int reqlen;
514 char seq=0;
515 struct urb *urb;
55016f10 516 gfp_t gfp_mask = wait ? GFP_NOIO : GFP_ATOMIC;
1da177e4
LT		 517
518 len += 4; /* first 4 are for header */
519
520 zd->rxdatas = 0;
521 zd->rxlen = 0;
522 for (seq=0; len > 0; seq++) {
523 request = kmalloc(16, gfp_mask);
524 if (!request)
525 return -ENOMEM;
526 urb = usb_alloc_urb(0, gfp_mask);
527 if (!urb) {
528 kfree(request);
529 return -ENOMEM;
530 }
531 memset(request, 0, 16);
532 reqlen = len>12 ? 12 : len;
533 request[0] = ZD1201_USB_RESREQ;
534 request[1] = seq;
535 request[2] = 0;
536 request[3] = 0;
537 if (request[1] == 0) {
538 /* add header */
539 *(__le16*)&request[4] = cpu_to_le16((len-2+1)/2);
540 *(__le16*)&request[6] = cpu_to_le16(rid);
541 memcpy(request+8, buf, reqlen-4);
542 buf += reqlen-4;
543 } else {
544 memcpy(request+4, buf, reqlen);
545 buf += reqlen;
546 }
547
548 len -= reqlen;
549
550 usb_fill_bulk_urb(urb, zd->usb, usb_sndbulkpipe(zd->usb,
551 zd->endp_out2), request, 16, zd1201_usbfree, zd);
552 err = usb_submit_urb(urb, gfp_mask);
553 if (err)
554 goto err;
555 }
556
557 request = kmalloc(16, gfp_mask);
558 if (!request)
559 return -ENOMEM;
560 urb = usb_alloc_urb(0, gfp_mask);
561 if (!urb) {
562 kfree(request);
563 return -ENOMEM;
564 }
565 *((__le32*)request) = cpu_to_le32(ZD1201_USB_CMDREQ);
566 *((__le16*)&request[4]) =
567 cpu_to_le16(ZD1201_CMDCODE_ACCESS|ZD1201_ACCESSBIT);
568 *((__le16*)&request[6]) = cpu_to_le16(rid);
569 *((__le16*)&request[8]) = cpu_to_le16(0);
570 *((__le16*)&request[10]) = cpu_to_le16(0);
571 usb_fill_bulk_urb(urb, zd->usb, usb_sndbulkpipe(zd->usb, zd->endp_out2),
572 request, 16, zd1201_usbfree, zd);
573 err = usb_submit_urb(urb, gfp_mask);
574 if (err)
575 goto err;
576
577 if (wait) {
578 wait_event_interruptible(zd->rxdataq, zd->rxdatas);
579 if (!zd->rxlen || le16_to_cpu(*(__le16*)&zd->rxdata[6]) != rid) {
580 dev_dbg(&zd->usb->dev, "wrong or no RID received\n");
581 }
582 }
583
584 return 0;
585err:
586 kfree(request);
587 usb_free_urb(urb);
588 return err;
589}
590
591static inline int zd1201_getconfig16(struct zd1201 *zd, int rid, short *val)
592{
593 int err;
594 __le16 zdval;
595
596 err = zd1201_getconfig(zd, rid, &zdval, sizeof(__le16));
597 if (err)
598 return err;
599 *val = le16_to_cpu(zdval);
600 return 0;
601}
602
603static inline int zd1201_setconfig16(struct zd1201 *zd, int rid, short val)
604{
605 __le16 zdval = cpu_to_le16(val);
606 return (zd1201_setconfig(zd, rid, &zdval, sizeof(__le16), 1));
607}
608
2e0a6b8c 609static int zd1201_drvr_start(struct zd1201 *zd)
1da177e4
LT		 610{
611 int err, i;
612 short max;
613 __le16 zdmax;
614 unsigned char *buffer;
2a806340 615
80b6ca48 616 buffer = kzalloc(ZD1201_RXSIZE, GFP_KERNEL);
1da177e4
LT		 617 if (!buffer)
618 return -ENOMEM;
1da177e4
LT		 619
620 usb_fill_bulk_urb(zd->rx_urb, zd->usb,
621 usb_rcvbulkpipe(zd->usb, zd->endp_in), buffer, ZD1201_RXSIZE,
622 zd1201_usbrx, zd);
623
624 err = usb_submit_urb(zd->rx_urb, GFP_KERNEL);
625 if (err)
626 goto err_buffer;
2a806340 627
1da177e4
LT		 628 err = zd1201_docmd(zd, ZD1201_CMDCODE_INIT, 0, 0, 0);
629 if (err)
630 goto err_urb;
631
632 err = zd1201_getconfig(zd, ZD1201_RID_CNFMAXTXBUFFERNUMBER, &zdmax,
633 sizeof(__le16));
634 if (err)
635 goto err_urb;
636
637 max = le16_to_cpu(zdmax);
638 for (i=0; i<max; i++) {
639 err = zd1201_docmd(zd, ZD1201_CMDCODE_ALLOC, 1514, 0, 0);
640 if (err)
641 goto err_urb;
642 }
643
644 return 0;
645
646err_urb:
647 usb_kill_urb(zd->rx_urb);
648 return err;
649err_buffer:
650 kfree(buffer);
651 return err;
652}
653
654/* Magic alert: The firmware doesn't seem to like the MAC state being
655 * toggled in promisc (aka monitor) mode.
656 * (It works a number of times, but will halt eventually)
657 * So we turn it of before disabling and on after enabling if needed.
658 */
659static int zd1201_enable(struct zd1201 *zd)
660{
661 int err;
662
663 if (zd->mac_enabled)
664 return 0;
665
666 err = zd1201_docmd(zd, ZD1201_CMDCODE_ENABLE, 0, 0, 0);
667 if (!err)
668 zd->mac_enabled = 1;
669
670 if (zd->monitor)
671 err = zd1201_setconfig16(zd, ZD1201_RID_PROMISCUOUSMODE, 1);
672
673 return err;
674}
675
676static int zd1201_disable(struct zd1201 *zd)
677{
678 int err;
2a806340 679
1da177e4
LT		 680 if (!zd->mac_enabled)
681 return 0;
682 if (zd->monitor) {
683 err = zd1201_setconfig16(zd, ZD1201_RID_PROMISCUOUSMODE, 0);
684 if (err)
685 return err;
686 }
687
688 err = zd1201_docmd(zd, ZD1201_CMDCODE_DISABLE, 0, 0, 0);
689 if (!err)
690 zd->mac_enabled = 0;
691 return err;
692}
693
694static int zd1201_mac_reset(struct zd1201 *zd)
695{
696 if (!zd->mac_enabled)
697 return 0;
698 zd1201_disable(zd);
699 return zd1201_enable(zd);
700}
701
702static int zd1201_join(struct zd1201 *zd, char *essid, int essidlen)
703{
704 int err, val;
705 char buf[IW_ESSID_MAX_SIZE+2];
706
707 err = zd1201_disable(zd);
708 if (err)
709 return err;
710
711 val = ZD1201_CNFAUTHENTICATION_OPENSYSTEM;
712 val |= ZD1201_CNFAUTHENTICATION_SHAREDKEY;
713 err = zd1201_setconfig16(zd, ZD1201_RID_CNFAUTHENTICATION, val);
714 if (err)
715 return err;
716
717 *(__le16 *)buf = cpu_to_le16(essidlen);
718 memcpy(buf+2, essid, essidlen);
719 if (!zd->ap) { /* Normal station */
720 err = zd1201_setconfig(zd, ZD1201_RID_CNFDESIREDSSID, buf,
721 IW_ESSID_MAX_SIZE+2, 1);
722 if (err)
723 return err;
724 } else { /* AP */
725 err = zd1201_setconfig(zd, ZD1201_RID_CNFOWNSSID, buf,
726 IW_ESSID_MAX_SIZE+2, 1);
727 if (err)
728 return err;
729 }
730
731 err = zd1201_setconfig(zd, ZD1201_RID_CNFOWNMACADDR,
732 zd->dev->dev_addr, zd->dev->addr_len, 1);
733 if (err)
734 return err;
735
736 err = zd1201_enable(zd);
737 if (err)
738 return err;
739
740 msleep(100);
741 return 0;
742}
743
744static int zd1201_net_open(struct net_device *dev)
745{
3d29b0c3 746 struct zd1201 *zd = netdev_priv(dev);
1da177e4
LT		 747
748 /* Start MAC with wildcard if no essid set */
749 if (!zd->mac_enabled)
750 zd1201_join(zd, zd->essid, zd->essidlen);
751 netif_start_queue(dev);
752
753 return 0;
754}
755
756static int zd1201_net_stop(struct net_device *dev)
757{
758 netif_stop_queue(dev);
1da177e4
LT		 759 return 0;
760}
761
762/*
763 RFC 1042 encapsulates Ethernet frames in 802.11 frames
764 by prefixing them with 0xaa, 0xaa, 0x03) followed by a SNAP OID of 0
093cf723 765 (0x00, 0x00, 0x00). Zd requires an additional padding, copy
1da177e4
LT		 766 of ethernet addresses, length of the standard RFC 1042 packet
767 and a command byte (which is nul for tx).
768
769 tx frame (from Wlan NG):
770 RFC 1042:
771 llc 0xAA 0xAA 0x03 (802.2 LLC)
772 snap 0x00 0x00 0x00 (Ethernet encapsulated)
773 type 2 bytes, Ethernet type field
774 payload (minus eth header)
775 Zydas specific:
776 padding 1B if (skb->len+8+1)%64==0
777 Eth MAC addr 12 bytes, Ethernet MAC addresses
778 length 2 bytes, RFC 1042 packet length
779 (llc+snap+type+payload)
780 zd 1 null byte, zd1201 packet type
781 */
782static int zd1201_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
783{
3d29b0c3 784 struct zd1201 *zd = netdev_priv(dev);
1da177e4
LT		 785 unsigned char *txbuf = zd->txdata;
786 int txbuflen, pad = 0, err;
787 struct urb *urb = zd->tx_urb;
788
789 if (!zd->mac_enabled || zd->monitor) {
22bc1ce4 790 dev->stats.tx_dropped++;
1da177e4
LT		 791 kfree_skb(skb);
792 return 0;
793 }
794 netif_stop_queue(dev);
795
796 txbuflen = skb->len + 8 + 1;
797 if (txbuflen%64 == 0) {
798 pad = 1;
799 txbuflen++;
800 }
801 txbuf[0] = 0xAA;
802 txbuf[1] = 0xAA;
803 txbuf[2] = 0x03;
804 txbuf[3] = 0x00; /* rfc1042 */
805 txbuf[4] = 0x00;
806 txbuf[5] = 0x00;
807
d626f62b 808 skb_copy_from_linear_data_offset(skb, 12, txbuf + 6, skb->len - 12);
1da177e4
LT		 809 if (pad)
810 txbuf[skb->len-12+6]=0;
d626f62b 811 skb_copy_from_linear_data(skb, txbuf + skb->len - 12 + 6 + pad, 12);
1da177e4
LT		 812 *(__be16*)&txbuf[skb->len+6+pad] = htons(skb->len-12+6);
813 txbuf[txbuflen-1] = 0;
814
815 usb_fill_bulk_urb(urb, zd->usb, usb_sndbulkpipe(zd->usb, zd->endp_out),
816 txbuf, txbuflen, zd1201_usbtx, zd);
817
818 err = usb_submit_urb(zd->tx_urb, GFP_ATOMIC);
819 if (err) {
22bc1ce4 820 dev->stats.tx_errors++;
1da177e4
LT		 821 netif_start_queue(dev);
822 return err;
823 }
22bc1ce4
SH		 824 dev->stats.tx_packets++;
825 dev->stats.tx_bytes += skb->len;
1da177e4
LT		 826 dev->trans_start = jiffies;
827 kfree_skb(skb);
828
829 return 0;
830}
831
832static void zd1201_tx_timeout(struct net_device *dev)
833{
3d29b0c3 834 struct zd1201 *zd = netdev_priv(dev);
1da177e4
LT		 835
836 if (!zd)
837 return;
838 dev_warn(&zd->usb->dev, "%s: TX timeout, shooting down urb\n",
839 dev->name);
1da177e4 840 usb_unlink_urb(zd->tx_urb);
22bc1ce4 841 dev->stats.tx_errors++;
1da177e4
LT		 842 /* Restart the timeout to quiet the watchdog: */
843 dev->trans_start = jiffies;
844}
845
846static int zd1201_set_mac_address(struct net_device *dev, void *p)
847{
848 struct sockaddr *addr = p;
3d29b0c3 849 struct zd1201 *zd = netdev_priv(dev);
1da177e4
LT		 850 int err;
851
852 if (!zd)
853 return -ENODEV;
854
855 err = zd1201_setconfig(zd, ZD1201_RID_CNFOWNMACADDR,
856 addr->sa_data, dev->addr_len, 1);
857 if (err)
858 return err;
859 memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
860
861 return zd1201_mac_reset(zd);
862}
863
1da177e4
LT		 864static struct iw_statistics *zd1201_get_wireless_stats(struct net_device *dev)
865{
3d29b0c3 866 struct zd1201 *zd = netdev_priv(dev);
1da177e4
LT		 867
868 return &zd->iwstats;
869}
870
871static void zd1201_set_multicast(struct net_device *dev)
872{
3d29b0c3 873 struct zd1201 *zd = netdev_priv(dev);
1da177e4
LT		 874 struct dev_mc_list *mc = dev->mc_list;
875 unsigned char reqbuf[ETH_ALEN*ZD1201_MAXMULTI];
876 int i;
877
878 if (dev->mc_count > ZD1201_MAXMULTI)
879 return;
880
881 for (i=0; i<dev->mc_count; i++) {
882 memcpy(reqbuf+i*ETH_ALEN, mc->dmi_addr, ETH_ALEN);
883 mc = mc->next;
884 }
885 zd1201_setconfig(zd, ZD1201_RID_CNFGROUPADDRESS, reqbuf,
886 dev->mc_count*ETH_ALEN, 0);
887
888}
889
890static int zd1201_config_commit(struct net_device *dev,
891 struct iw_request_info *info, struct iw_point *data, char *essid)
892{
3d29b0c3 893 struct zd1201 *zd = netdev_priv(dev);
1da177e4
LT		 894
895 return zd1201_mac_reset(zd);
896}
897
898static int zd1201_get_name(struct net_device *dev,
899 struct iw_request_info *info, char *name, char *extra)
900{
901 strcpy(name, "IEEE 802.11b");
1da177e4
LT		 902 return 0;
903}
904
905static int zd1201_set_freq(struct net_device *dev,
906 struct iw_request_info *info, struct iw_freq *freq, char *extra)
907{
3d29b0c3 908 struct zd1201 *zd = netdev_priv(dev);
1da177e4
LT		 909 short channel = 0;
910 int err;
911
912 if (freq->e == 0)
913 channel = freq->m;
914 else {
9ee677c2
DK		 915 channel = ieee80211_freq_to_dsss_chan(freq->m);
916 if (channel < 0)
917 channel = 0;
1da177e4
LT		 918 }
919
920 err = zd1201_setconfig16(zd, ZD1201_RID_CNFOWNCHANNEL, channel);
921 if (err)
922 return err;
923
924 zd1201_mac_reset(zd);
925
926 return 0;
927}
928
929static int zd1201_get_freq(struct net_device *dev,
930 struct iw_request_info *info, struct iw_freq *freq, char *extra)
931{
3d29b0c3 932 struct zd1201 *zd = netdev_priv(dev);
1da177e4
LT		 933 short channel;
934 int err;
935
936 err = zd1201_getconfig16(zd, ZD1201_RID_CNFOWNCHANNEL, &channel);
937 if (err)
938 return err;
939 freq->e = 0;
940 freq->m = channel;
941
942 return 0;
943}
944
945static int zd1201_set_mode(struct net_device *dev,
946 struct iw_request_info *info, __u32 *mode, char *extra)
947{
3d29b0c3 948 struct zd1201 *zd = netdev_priv(dev);
1da177e4
LT		 949 short porttype, monitor = 0;
950 unsigned char buffer[IW_ESSID_MAX_SIZE+2];
951 int err;
952
953 if (zd->ap) {
954 if (*mode != IW_MODE_MASTER)
955 return -EINVAL;
956 return 0;
957 }
958
959 err = zd1201_setconfig16(zd, ZD1201_RID_PROMISCUOUSMODE, 0);
960 if (err)
961 return err;
962 zd->dev->type = ARPHRD_ETHER;
963 switch(*mode) {
964 case IW_MODE_MONITOR:
965 monitor = 1;
966 zd->dev->type = ARPHRD_IEEE80211;
967 /* Make sure we are no longer associated with by
968 setting an 'impossible' essid.
969 (otherwise we mess up firmware)
970 */
971 zd1201_join(zd, "\0-*#\0", 5);
972 /* Put port in pIBSS */
973 case 8: /* No pseudo-IBSS in wireless extensions (yet) */
974 porttype = ZD1201_PORTTYPE_PSEUDOIBSS;
975 break;
976 case IW_MODE_ADHOC:
977 porttype = ZD1201_PORTTYPE_IBSS;
978 break;
979 case IW_MODE_INFRA:
980 porttype = ZD1201_PORTTYPE_BSS;
981 break;
982 default:
983 return -EINVAL;
984 }
985
986 err = zd1201_setconfig16(zd, ZD1201_RID_CNFPORTTYPE, porttype);
987 if (err)
988 return err;
989 if (zd->monitor && !monitor) {
990 zd1201_disable(zd);
991 *(__le16 *)buffer = cpu_to_le16(zd->essidlen);
992 memcpy(buffer+2, zd->essid, zd->essidlen);
993 err = zd1201_setconfig(zd, ZD1201_RID_CNFDESIREDSSID,
994 buffer, IW_ESSID_MAX_SIZE+2, 1);
995 if (err)
996 return err;
997 }
2a806340 998 zd->monitor = monitor;
1da177e4
LT		 999 /* If monitor mode is set we don't actually turn it on here since it
1000 * is done during mac reset anyway (see zd1201_mac_enable).
1001 */
1da177e4
LT		 1002 zd1201_mac_reset(zd);
1003
1004 return 0;
1005}
1006
1007static int zd1201_get_mode(struct net_device *dev,
1008 struct iw_request_info *info, __u32 *mode, char *extra)
1009{
3d29b0c3 1010 struct zd1201 *zd = netdev_priv(dev);
1da177e4
LT		 1011 short porttype;
1012 int err;
1013
1014 err = zd1201_getconfig16(zd, ZD1201_RID_CNFPORTTYPE, &porttype);
1015 if (err)
1016 return err;
1017 switch(porttype) {
1018 case ZD1201_PORTTYPE_IBSS:
1019 *mode = IW_MODE_ADHOC;
1020 break;
1021 case ZD1201_PORTTYPE_BSS:
1022 *mode = IW_MODE_INFRA;
1023 break;
1024 case ZD1201_PORTTYPE_WDS:
1025 *mode = IW_MODE_REPEAT;
1026 break;
1027 case ZD1201_PORTTYPE_PSEUDOIBSS:
1028 *mode = 8;/* No Pseudo-IBSS... */
1029 break;
1030 case ZD1201_PORTTYPE_AP:
1031 *mode = IW_MODE_MASTER;
1032 break;
1033 default:
1034 dev_dbg(&zd->usb->dev, "Unknown porttype: %d\n",
1035 porttype);
1036 *mode = IW_MODE_AUTO;
1037 }
1038 if (zd->monitor)
1039 *mode = IW_MODE_MONITOR;
1040
1041 return 0;
1042}
1043
1044static int zd1201_get_range(struct net_device *dev,
1045 struct iw_request_info *info, struct iw_point *wrq, char *extra)
1046{
1047 struct iw_range *range = (struct iw_range *)extra;
1048
1049 wrq->length = sizeof(struct iw_range);
1050 memset(range, 0, sizeof(struct iw_range));
1051 range->we_version_compiled = WIRELESS_EXT;
1052 range->we_version_source = WIRELESS_EXT;
1053
1054 range->max_qual.qual = 128;
1055 range->max_qual.level = 128;
1056 range->max_qual.noise = 128;
1057 range->max_qual.updated = 7;
1058
1059 range->encoding_size[0] = 5;
1060 range->encoding_size[1] = 13;
1061 range->num_encoding_sizes = 2;
1062 range->max_encoding_tokens = ZD1201_NUMKEYS;
1063
1064 range->num_bitrates = 4;
1065 range->bitrate[0] = 1000000;
1066 range->bitrate[1] = 2000000;
1067 range->bitrate[2] = 5500000;
1068 range->bitrate[3] = 11000000;
1069
1070 range->min_rts = 0;
1071 range->min_frag = ZD1201_FRAGMIN;
1072 range->max_rts = ZD1201_RTSMAX;
1073 range->min_frag = ZD1201_FRAGMAX;
1074
1075 return 0;
1076}
1077
1078/* Little bit of magic here: we only get the quality if we poll
1079 * for it, and we never get an actual request to trigger such
093cf723 1080 * a poll. Therefore we 'assume' that the user will soon ask for
1da177e4
LT		 1081 * the stats after asking the bssid.
1082 */
1083static int zd1201_get_wap(struct net_device *dev,
1084 struct iw_request_info *info, struct sockaddr *ap_addr, char *extra)
1085{
3d29b0c3 1086 struct zd1201 *zd = netdev_priv(dev);
1da177e4
LT		 1087 unsigned char buffer[6];
1088
1089 if (!zd1201_getconfig(zd, ZD1201_RID_COMMSQUALITY, buffer, 6)) {
093cf723 1090 /* Unfortunately the quality and noise reported is useless.
1da177e4
LT		 1091 they seem to be accumulators that increase until you
1092 read them, unless we poll on a fixed interval we can't
1093 use them
1094 */
1095 /*zd->iwstats.qual.qual = le16_to_cpu(((__le16 *)buffer)[0]);*/
1096 zd->iwstats.qual.level = le16_to_cpu(((__le16 *)buffer)[1]);
1097 /*zd->iwstats.qual.noise = le16_to_cpu(((__le16 *)buffer)[2]);*/
1098 zd->iwstats.qual.updated = 2;
1099 }
1100
2a806340 1101 return zd1201_getconfig(zd, ZD1201_RID_CURRENTBSSID, ap_addr->sa_data, 6);
1da177e4
LT		 1102}
1103
1104static int zd1201_set_scan(struct net_device *dev,
1105 struct iw_request_info *info, struct iw_point *srq, char *extra)
1106{
1107 /* We do everything in get_scan */
1108 return 0;
1109}
1110
1111static int zd1201_get_scan(struct net_device *dev,
1112 struct iw_request_info *info, struct iw_point *srq, char *extra)
1113{
3d29b0c3 1114 struct zd1201 *zd = netdev_priv(dev);
1da177e4
LT		 1115 int err, i, j, enabled_save;
1116 struct iw_event iwe;
1117 char *cev = extra;
1118 char *end_buf = extra + IW_SCAN_MAX_DATA;
1119
1120 /* No scanning in AP mode */
1121 if (zd->ap)
1122 return -EOPNOTSUPP;
1123
1124 /* Scan doesn't seem to work if disabled */
1125 enabled_save = zd->mac_enabled;
1126 zd1201_enable(zd);
1127
1128 zd->rxdatas = 0;
1129 err = zd1201_docmd(zd, ZD1201_CMDCODE_INQUIRE,
1130 ZD1201_INQ_SCANRESULTS, 0, 0);
1131 if (err)
1132 return err;
1133
1134 wait_event_interruptible(zd->rxdataq, zd->rxdatas);
1135 if (!zd->rxlen)
1136 return -EIO;
1137
1138 if (le16_to_cpu(*(__le16*)&zd->rxdata[2]) != ZD1201_INQ_SCANRESULTS)
1139 return -EIO;
1140
1141 for(i=8; i<zd->rxlen; i+=62) {
1142 iwe.cmd = SIOCGIWAP;
1143 iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
1144 memcpy(iwe.u.ap_addr.sa_data, zd->rxdata+i+6, 6);
ccc58057
DM		 1145 cev = iwe_stream_add_event(info, cev, end_buf,
1146 &iwe, IW_EV_ADDR_LEN);
1da177e4
LT		 1147
1148 iwe.cmd = SIOCGIWESSID;
1149 iwe.u.data.length = zd->rxdata[i+16];
1150 iwe.u.data.flags = 1;
ccc58057
DM		 1151 cev = iwe_stream_add_point(info, cev, end_buf,
1152 &iwe, zd->rxdata+i+18);
1da177e4
LT		 1153
1154 iwe.cmd = SIOCGIWMODE;
1155 if (zd->rxdata[i+14]&0x01)
1156 iwe.u.mode = IW_MODE_MASTER;
1157 else
1158 iwe.u.mode = IW_MODE_ADHOC;
ccc58057
DM		 1159 cev = iwe_stream_add_event(info, cev, end_buf,
1160 &iwe, IW_EV_UINT_LEN);
1da177e4
LT		 1161
1162 iwe.cmd = SIOCGIWFREQ;
1163 iwe.u.freq.m = zd->rxdata[i+0];
1164 iwe.u.freq.e = 0;
ccc58057
DM		 1165 cev = iwe_stream_add_event(info, cev, end_buf,
1166 &iwe, IW_EV_FREQ_LEN);
1da177e4
LT		 1167
1168 iwe.cmd = SIOCGIWRATE;
1169 iwe.u.bitrate.fixed = 0;
1170 iwe.u.bitrate.disabled = 0;
1171 for (j=0; j<10; j++) if (zd->rxdata[i+50+j]) {
1172 iwe.u.bitrate.value = (zd->rxdata[i+50+j]&0x7f)*500000;
ccc58057
DM		 1173 cev = iwe_stream_add_event(info, cev, end_buf,
1174 &iwe, IW_EV_PARAM_LEN);
1da177e4
LT		 1175 }
1176
1177 iwe.cmd = SIOCGIWENCODE;
1178 iwe.u.data.length = 0;
1179 if (zd->rxdata[i+14]&0x10)
1180 iwe.u.data.flags = IW_ENCODE_ENABLED;
1181 else
1182 iwe.u.data.flags = IW_ENCODE_DISABLED;
ccc58057 1183 cev = iwe_stream_add_point(info, cev, end_buf, &iwe, NULL);
1da177e4
LT		 1184
1185 iwe.cmd = IWEVQUAL;
1186 iwe.u.qual.qual = zd->rxdata[i+4];
1187 iwe.u.qual.noise= zd->rxdata[i+2]/10-100;
1188 iwe.u.qual.level = (256+zd->rxdata[i+4]*100)/255-100;
1189 iwe.u.qual.updated = 7;
ccc58057
DM		 1190 cev = iwe_stream_add_event(info, cev, end_buf,
1191 &iwe, IW_EV_QUAL_LEN);
1da177e4
LT		 1192 }
1193
1194 if (!enabled_save)
1195 zd1201_disable(zd);
1196
1197 srq->length = cev - extra;
1198 srq->flags = 0;
1199
1200 return 0;
1201}
1202
1203static int zd1201_set_essid(struct net_device *dev,
1204 struct iw_request_info *info, struct iw_point *data, char *essid)
1205{
3d29b0c3 1206 struct zd1201 *zd = netdev_priv(dev);
1da177e4
LT		 1207
1208 if (data->length > IW_ESSID_MAX_SIZE)
1209 return -EINVAL;
1210 if (data->length < 1)
1211 data->length = 1;
22b99262 1212 zd->essidlen = data->length;
1da177e4
LT		 1213 memset(zd->essid, 0, IW_ESSID_MAX_SIZE+1);
1214 memcpy(zd->essid, essid, data->length);
1215 return zd1201_join(zd, zd->essid, zd->essidlen);
1216}
1217
1218static int zd1201_get_essid(struct net_device *dev,
1219 struct iw_request_info *info, struct iw_point *data, char *essid)
1220{
3d29b0c3 1221 struct zd1201 *zd = netdev_priv(dev);
1da177e4
LT		 1222
1223 memcpy(essid, zd->essid, zd->essidlen);
1224 data->flags = 1;
1225 data->length = zd->essidlen;
1226
1227 return 0;
1228}
1229
1230static int zd1201_get_nick(struct net_device *dev, struct iw_request_info *info,
1231 struct iw_point *data, char *nick)
1232{
1233 strcpy(nick, "zd1201");
1234 data->flags = 1;
1235 data->length = strlen(nick);
1236 return 0;
1237}
1238
1239static int zd1201_set_rate(struct net_device *dev,
1240 struct iw_request_info *info, struct iw_param *rrq, char *extra)
1241{
3d29b0c3 1242 struct zd1201 *zd = netdev_priv(dev);
1da177e4
LT		 1243 short rate;
1244 int err;
1245
1246 switch (rrq->value) {
1247 case 1000000:
1248 rate = ZD1201_RATEB1;
1249 break;
1250 case 2000000:
1251 rate = ZD1201_RATEB2;
1252 break;
1253 case 5500000:
1254 rate = ZD1201_RATEB5;
1255 break;
1256 case 11000000:
1257 default:
1258 rate = ZD1201_RATEB11;
1259 break;
1260 }
1261 if (!rrq->fixed) { /* Also enable all lower bitrates */
1262 rate |= rate-1;
1263 }
2a806340 1264
1da177e4
LT		 1265 err = zd1201_setconfig16(zd, ZD1201_RID_TXRATECNTL, rate);
1266 if (err)
1267 return err;
1268
1269 return zd1201_mac_reset(zd);
1270}
1271
1272static int zd1201_get_rate(struct net_device *dev,
1273 struct iw_request_info *info, struct iw_param *rrq, char *extra)
1274{
3d29b0c3 1275 struct zd1201 *zd = netdev_priv(dev);
1da177e4
LT		 1276 short rate;
1277 int err;
1278
1279 err = zd1201_getconfig16(zd, ZD1201_RID_CURRENTTXRATE, &rate);
1280 if (err)
1281 return err;
1282
1283 switch(rate) {
1284 case 1:
1285 rrq->value = 1000000;
1286 break;
1287 case 2:
1288 rrq->value = 2000000;
1289 break;
1290 case 5:
1291 rrq->value = 5500000;
1292 break;
1293 case 11:
1294 rrq->value = 11000000;
1295 break;
1296 default:
1297 rrq->value = 0;
1298 }
1299 rrq->fixed = 0;
1300 rrq->disabled = 0;
1301
1302 return 0;
1303}
1304
1305static int zd1201_set_rts(struct net_device *dev, struct iw_request_info *info,
1306 struct iw_param *rts, char *extra)
1307{
3d29b0c3 1308 struct zd1201 *zd = netdev_priv(dev);
1da177e4
LT		 1309 int err;
1310 short val = rts->value;
1311
1312 if (rts->disabled || !rts->fixed)
1313 val = ZD1201_RTSMAX;
1314 if (val > ZD1201_RTSMAX)
1315 return -EINVAL;
1316 if (val < 0)
1317 return -EINVAL;
1318
1319 err = zd1201_setconfig16(zd, ZD1201_RID_CNFRTSTHRESHOLD, val);
1320 if (err)
1321 return err;
1322 return zd1201_mac_reset(zd);
1323}
1324
1325static int zd1201_get_rts(struct net_device *dev, struct iw_request_info *info,
1326 struct iw_param *rts, char *extra)
1327{
3d29b0c3 1328 struct zd1201 *zd = netdev_priv(dev);
1da177e4
LT		 1329 short rtst;
1330 int err;
1331
1332 err = zd1201_getconfig16(zd, ZD1201_RID_CNFRTSTHRESHOLD, &rtst);
1333 if (err)
1334 return err;
1335 rts->value = rtst;
1336 rts->disabled = (rts->value == ZD1201_RTSMAX);
1337 rts->fixed = 1;
1338
1339 return 0;
1340}
1341
1342static int zd1201_set_frag(struct net_device *dev, struct iw_request_info *info,
1343 struct iw_param *frag, char *extra)
1344{
3d29b0c3 1345 struct zd1201 *zd = netdev_priv(dev);
1da177e4
LT		 1346 int err;
1347 short val = frag->value;
1348
1349 if (frag->disabled || !frag->fixed)
1350 val = ZD1201_FRAGMAX;
1351 if (val > ZD1201_FRAGMAX)
1352 return -EINVAL;
1353 if (val < ZD1201_FRAGMIN)
1354 return -EINVAL;
1355 if (val & 1)
1356 return -EINVAL;
1357 err = zd1201_setconfig16(zd, ZD1201_RID_CNFFRAGTHRESHOLD, val);
1358 if (err)
1359 return err;
1360 return zd1201_mac_reset(zd);
1361}
1362
1363static int zd1201_get_frag(struct net_device *dev, struct iw_request_info *info,
1364 struct iw_param *frag, char *extra)
1365{
3d29b0c3 1366 struct zd1201 *zd = netdev_priv(dev);
1da177e4
LT		 1367 short fragt;
1368 int err;
1369
1370 err = zd1201_getconfig16(zd, ZD1201_RID_CNFFRAGTHRESHOLD, &fragt);
1371 if (err)
1372 return err;
1373 frag->value = fragt;
1374 frag->disabled = (frag->value == ZD1201_FRAGMAX);
1375 frag->fixed = 1;
1376
1377 return 0;
1378}
1379
1380static int zd1201_set_retry(struct net_device *dev,
1381 struct iw_request_info *info, struct iw_param *rrq, char *extra)
1382{
1383 return 0;
1384}
1385
1386static int zd1201_get_retry(struct net_device *dev,
1387 struct iw_request_info *info, struct iw_param *rrq, char *extra)
1388{
1389 return 0;
1390}
1391
1392static int zd1201_set_encode(struct net_device *dev,
1393 struct iw_request_info *info, struct iw_point *erq, char *key)
1394{
3d29b0c3 1395 struct zd1201 *zd = netdev_priv(dev);
1da177e4
LT		 1396 short i;
1397 int err, rid;
1398
1399 if (erq->length > ZD1201_MAXKEYLEN)
1400 return -EINVAL;
1401
1402 i = (erq->flags & IW_ENCODE_INDEX)-1;
1403 if (i == -1) {
1404 err = zd1201_getconfig16(zd,ZD1201_RID_CNFDEFAULTKEYID,&i);
1405 if (err)
1406 return err;
1407 } else {
1408 err = zd1201_setconfig16(zd, ZD1201_RID_CNFDEFAULTKEYID, i);
1409 if (err)
1410 return err;
1411 }
1412
1413 if (i < 0 || i >= ZD1201_NUMKEYS)
1414 return -EINVAL;
1415
1416 rid = ZD1201_RID_CNFDEFAULTKEY0 + i;
1417 err = zd1201_setconfig(zd, rid, key, erq->length, 1);
1418 if (err)
1419 return err;
1420 zd->encode_keylen[i] = erq->length;
1421 memcpy(zd->encode_keys[i], key, erq->length);
1422
1423 i=0;
1424 if (!(erq->flags & IW_ENCODE_DISABLED & IW_ENCODE_MODE)) {
1425 i |= 0x01;
1426 zd->encode_enabled = 1;
1427 } else
1428 zd->encode_enabled = 0;
1429 if (erq->flags & IW_ENCODE_RESTRICTED & IW_ENCODE_MODE) {
1430 i |= 0x02;
1431 zd->encode_restricted = 1;
1432 } else
1433 zd->encode_restricted = 0;
1434 err = zd1201_setconfig16(zd, ZD1201_RID_CNFWEBFLAGS, i);
1435 if (err)
1436 return err;
1437
1438 if (zd->encode_enabled)
1439 i = ZD1201_CNFAUTHENTICATION_SHAREDKEY;
1440 else
1441 i = ZD1201_CNFAUTHENTICATION_OPENSYSTEM;
1442 err = zd1201_setconfig16(zd, ZD1201_RID_CNFAUTHENTICATION, i);
1443 if (err)
1444 return err;
1445
1446 return zd1201_mac_reset(zd);
1447}
1448
1449static int zd1201_get_encode(struct net_device *dev,
1450 struct iw_request_info *info, struct iw_point *erq, char *key)
1451{
3d29b0c3 1452 struct zd1201 *zd = netdev_priv(dev);
1da177e4
LT		 1453 short i;
1454 int err;
1455
1456 if (zd->encode_enabled)
1457 erq->flags = IW_ENCODE_ENABLED;
1458 else
1459 erq->flags = IW_ENCODE_DISABLED;
1460 if (zd->encode_restricted)
1461 erq->flags |= IW_ENCODE_RESTRICTED;
1462 else
1463 erq->flags |= IW_ENCODE_OPEN;
1464
1465 i = (erq->flags & IW_ENCODE_INDEX) -1;
1466 if (i == -1) {
1467 err = zd1201_getconfig16(zd, ZD1201_RID_CNFDEFAULTKEYID, &i);
1468 if (err)
1469 return err;
1470 }
1471 if (i<0 || i>= ZD1201_NUMKEYS)
1472 return -EINVAL;
1473
1474 erq->flags |= i+1;
2a806340 1475
1da177e4
LT		 1476 erq->length = zd->encode_keylen[i];
1477 memcpy(key, zd->encode_keys[i], erq->length);
1478
1479 return 0;
1480}
1481
1482static int zd1201_set_power(struct net_device *dev,
1483 struct iw_request_info *info, struct iw_param *vwrq, char *extra)
1484{
3d29b0c3 1485 struct zd1201 *zd = netdev_priv(dev);
1da177e4
LT		 1486 short enabled, duration, level;
1487 int err;
1488
1489 enabled = vwrq->disabled ? 0 : 1;
1490 if (enabled) {
1491 if (vwrq->flags & IW_POWER_PERIOD) {
1492 duration = vwrq->value;
1493 err = zd1201_setconfig16(zd,
1494 ZD1201_RID_CNFMAXSLEEPDURATION, duration);
1495 if (err)
1496 return err;
1497 goto out;
1498 }
1499 if (vwrq->flags & IW_POWER_TIMEOUT) {
1500 err = zd1201_getconfig16(zd,
1501 ZD1201_RID_CNFMAXSLEEPDURATION, &duration);
1502 if (err)
1503 return err;
1504 level = vwrq->value * 4 / duration;
1505 if (level > 4)
1506 level = 4;
1507 if (level < 0)
1508 level = 0;
1509 err = zd1201_setconfig16(zd, ZD1201_RID_CNFPMEPS,
1510 level);
1511 if (err)
1512 return err;
1513 goto out;
1514 }
1515 return -EINVAL;
1516 }
1517out:
2a806340 1518 return zd1201_setconfig16(zd, ZD1201_RID_CNFPMENABLED, enabled);
1da177e4
LT		 1519}
1520
1521static int zd1201_get_power(struct net_device *dev,
1522 struct iw_request_info *info, struct iw_param *vwrq, char *extra)
1523{
3d29b0c3 1524 struct zd1201 *zd = netdev_priv(dev);
1da177e4
LT		 1525 short enabled, level, duration;
1526 int err;
1527
1528 err = zd1201_getconfig16(zd, ZD1201_RID_CNFPMENABLED, &enabled);
1529 if (err)
1530 return err;
1531 err = zd1201_getconfig16(zd, ZD1201_RID_CNFPMEPS, &level);
1532 if (err)
1533 return err;
1534 err = zd1201_getconfig16(zd, ZD1201_RID_CNFMAXSLEEPDURATION, &duration);
1535 if (err)
1536 return err;
1537 vwrq->disabled = enabled ? 0 : 1;
1538 if (vwrq->flags & IW_POWER_TYPE) {
1539 if (vwrq->flags & IW_POWER_PERIOD) {
1540 vwrq->value = duration;
1541 vwrq->flags = IW_POWER_PERIOD;
1542 } else {
1543 vwrq->value = duration * level / 4;
1544 vwrq->flags = IW_POWER_TIMEOUT;
1545 }
1546 }
1547 if (vwrq->flags & IW_POWER_MODE) {
1548 if (enabled && level)
1549 vwrq->flags = IW_POWER_UNICAST_R;
1550 else
1551 vwrq->flags = IW_POWER_ALL_R;
1552 }
1553
1554 return 0;
1555}
1556
1557
1558static const iw_handler zd1201_iw_handler[] =
1559{
1560 (iw_handler) zd1201_config_commit, /* SIOCSIWCOMMIT */
1561 (iw_handler) zd1201_get_name, /* SIOCGIWNAME */
1562 (iw_handler) NULL, /* SIOCSIWNWID */
1563 (iw_handler) NULL, /* SIOCGIWNWID */
1564 (iw_handler) zd1201_set_freq, /* SIOCSIWFREQ */
1565 (iw_handler) zd1201_get_freq, /* SIOCGIWFREQ */
1566 (iw_handler) zd1201_set_mode, /* SIOCSIWMODE */
1567 (iw_handler) zd1201_get_mode, /* SIOCGIWMODE */
1568 (iw_handler) NULL, /* SIOCSIWSENS */
1569 (iw_handler) NULL, /* SIOCGIWSENS */
1570 (iw_handler) NULL, /* SIOCSIWRANGE */
1571 (iw_handler) zd1201_get_range, /* SIOCGIWRANGE */
1572 (iw_handler) NULL, /* SIOCSIWPRIV */
1573 (iw_handler) NULL, /* SIOCGIWPRIV */
1574 (iw_handler) NULL, /* SIOCSIWSTATS */
1575 (iw_handler) NULL, /* SIOCGIWSTATS */
1576 (iw_handler) NULL, /* SIOCSIWSPY */
1577 (iw_handler) NULL, /* SIOCGIWSPY */
1578 (iw_handler) NULL, /* -- hole -- */
1579 (iw_handler) NULL, /* -- hole -- */
1580 (iw_handler) NULL/*zd1201_set_wap*/, /* SIOCSIWAP */
1581 (iw_handler) zd1201_get_wap, /* SIOCGIWAP */
1582 (iw_handler) NULL, /* -- hole -- */
1583 (iw_handler) NULL, /* SIOCGIWAPLIST */
1584 (iw_handler) zd1201_set_scan, /* SIOCSIWSCAN */
1585 (iw_handler) zd1201_get_scan, /* SIOCGIWSCAN */
1586 (iw_handler) zd1201_set_essid, /* SIOCSIWESSID */
1587 (iw_handler) zd1201_get_essid, /* SIOCGIWESSID */
1588 (iw_handler) NULL, /* SIOCSIWNICKN */
1589 (iw_handler) zd1201_get_nick, /* SIOCGIWNICKN */
1590 (iw_handler) NULL, /* -- hole -- */
1591 (iw_handler) NULL, /* -- hole -- */
1592 (iw_handler) zd1201_set_rate, /* SIOCSIWRATE */
1593 (iw_handler) zd1201_get_rate, /* SIOCGIWRATE */
1594 (iw_handler) zd1201_set_rts, /* SIOCSIWRTS */
1595 (iw_handler) zd1201_get_rts, /* SIOCGIWRTS */
1596 (iw_handler) zd1201_set_frag, /* SIOCSIWFRAG */
1597 (iw_handler) zd1201_get_frag, /* SIOCGIWFRAG */
1598 (iw_handler) NULL, /* SIOCSIWTXPOW */
1599 (iw_handler) NULL, /* SIOCGIWTXPOW */
1600 (iw_handler) zd1201_set_retry, /* SIOCSIWRETRY */
1601 (iw_handler) zd1201_get_retry, /* SIOCGIWRETRY */
1602 (iw_handler) zd1201_set_encode, /* SIOCSIWENCODE */
1603 (iw_handler) zd1201_get_encode, /* SIOCGIWENCODE */
1604 (iw_handler) zd1201_set_power, /* SIOCSIWPOWER */
1605 (iw_handler) zd1201_get_power, /* SIOCGIWPOWER */
1606};
1607
1608static int zd1201_set_hostauth(struct net_device *dev,
1609 struct iw_request_info *info, struct iw_param *rrq, char *extra)
1610{
3d29b0c3 1611 struct zd1201 *zd = netdev_priv(dev);
1da177e4
LT		 1612
1613 if (!zd->ap)
1614 return -EOPNOTSUPP;
1615
2a806340 1616 return zd1201_setconfig16(zd, ZD1201_RID_CNFHOSTAUTH, rrq->value);
1da177e4
LT		 1617}
1618
1619static int zd1201_get_hostauth(struct net_device *dev,
1620 struct iw_request_info *info, struct iw_param *rrq, char *extra)
1621{
3d29b0c3 1622 struct zd1201 *zd = netdev_priv(dev);
1da177e4
LT		 1623 short hostauth;
1624 int err;
1625
1626 if (!zd->ap)
1627 return -EOPNOTSUPP;
1628
1629 err = zd1201_getconfig16(zd, ZD1201_RID_CNFHOSTAUTH, &hostauth);
1630 if (err)
1631 return err;
1632 rrq->value = hostauth;
1633 rrq->fixed = 1;
1634
1635 return 0;
1636}
1637
1638static int zd1201_auth_sta(struct net_device *dev,
1639 struct iw_request_info *info, struct sockaddr *sta, char *extra)
1640{
3d29b0c3 1641 struct zd1201 *zd = netdev_priv(dev);
1da177e4
LT		 1642 unsigned char buffer[10];
1643
1644 if (!zd->ap)
1645 return -EOPNOTSUPP;
1646
1647 memcpy(buffer, sta->sa_data, ETH_ALEN);
1648 *(short*)(buffer+6) = 0; /* 0==success, 1==failure */
1649 *(short*)(buffer+8) = 0;
1650
1651 return zd1201_setconfig(zd, ZD1201_RID_AUTHENTICATESTA, buffer, 10, 1);
1652}
1653
1654static int zd1201_set_maxassoc(struct net_device *dev,
1655 struct iw_request_info *info, struct iw_param *rrq, char *extra)
1656{
3d29b0c3 1657 struct zd1201 *zd = netdev_priv(dev);
1da177e4
LT		 1658 int err;
1659
1660 if (!zd->ap)
1661 return -EOPNOTSUPP;
1662
1663 err = zd1201_setconfig16(zd, ZD1201_RID_CNFMAXASSOCSTATIONS, rrq->value);
1664 if (err)
1665 return err;
1666 return 0;
1667}
1668
1669static int zd1201_get_maxassoc(struct net_device *dev,
1670 struct iw_request_info *info, struct iw_param *rrq, char *extra)
1671{
3d29b0c3 1672 struct zd1201 *zd = netdev_priv(dev);
1da177e4
LT		 1673 short maxassoc;
1674 int err;
1675
1676 if (!zd->ap)
1677 return -EOPNOTSUPP;
1678
1679 err = zd1201_getconfig16(zd, ZD1201_RID_CNFMAXASSOCSTATIONS, &maxassoc);
1680 if (err)
1681 return err;
1682 rrq->value = maxassoc;
1683 rrq->fixed = 1;
1684
1685 return 0;
1686}
1687
1688static const iw_handler zd1201_private_handler[] = {
1689 (iw_handler) zd1201_set_hostauth, /* ZD1201SIWHOSTAUTH */
1690 (iw_handler) zd1201_get_hostauth, /* ZD1201GIWHOSTAUTH */
1691 (iw_handler) zd1201_auth_sta, /* ZD1201SIWAUTHSTA */
1692 (iw_handler) NULL, /* nothing to get */
1693 (iw_handler) zd1201_set_maxassoc, /* ZD1201SIMAXASSOC */
1694 (iw_handler) zd1201_get_maxassoc, /* ZD1201GIMAXASSOC */
1695};
1696
1697static const struct iw_priv_args zd1201_private_args[] = {
1698 { ZD1201SIWHOSTAUTH, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
1699 IW_PRIV_TYPE_NONE, "sethostauth" },
1700 { ZD1201GIWHOSTAUTH, IW_PRIV_TYPE_NONE,
1701 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "gethostauth" },
52950ed4 1702 { ZD1201SIWAUTHSTA, IW_PRIV_TYPE_ADDR | IW_PRIV_SIZE_FIXED | 1,
1da177e4
LT		 1703 IW_PRIV_TYPE_NONE, "authstation" },
1704 { ZD1201SIWMAXASSOC, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
1705 IW_PRIV_TYPE_NONE, "setmaxassoc" },
1706 { ZD1201GIWMAXASSOC, IW_PRIV_TYPE_NONE,
1707 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getmaxassoc" },
1708};
1709
1710static const struct iw_handler_def zd1201_iw_handlers = {
52950ed4
TK		 1711 .num_standard = ARRAY_SIZE(zd1201_iw_handler),
1712 .num_private = ARRAY_SIZE(zd1201_private_handler),
1713 .num_private_args = ARRAY_SIZE(zd1201_private_args),
1da177e4
LT		 1714 .standard = (iw_handler *)zd1201_iw_handler,
1715 .private = (iw_handler *)zd1201_private_handler,
1716 .private_args = (struct iw_priv_args *) zd1201_private_args,
00736025 1717 .get_wireless_stats = zd1201_get_wireless_stats,
1da177e4
LT		 1718};
1719
2bd9f54d
SH		 1720static const struct net_device_ops zd1201_netdev_ops = {
1721 .ndo_open = zd1201_net_open,
1722 .ndo_stop = zd1201_net_stop,
1723 .ndo_start_xmit = zd1201_hard_start_xmit,
1724 .ndo_tx_timeout = zd1201_tx_timeout,
1725 .ndo_set_multicast_list = zd1201_set_multicast,
1726 .ndo_set_mac_address = zd1201_set_mac_address,
1727 .ndo_change_mtu = eth_change_mtu,
2bd9f54d
SH		 1728 .ndo_validate_addr = eth_validate_addr,
1729};
1730
2e0a6b8c
AB		 1731static int zd1201_probe(struct usb_interface *interface,
1732 const struct usb_device_id *id)
1da177e4
LT		 1733{
1734 struct zd1201 *zd;
3d29b0c3 1735 struct net_device *dev;
1da177e4 1736 struct usb_device *usb;
2a806340 1737 int err;
1da177e4
LT		 1738 short porttype;
1739 char buf[IW_ESSID_MAX_SIZE+2];
1740
1741 usb = interface_to_usbdev(interface);
1742
3d29b0c3
JL		 1743 dev = alloc_etherdev(sizeof(*zd));
1744 if (!dev)
1da177e4 1745 return -ENOMEM;
3d29b0c3
JL		 1746 zd = netdev_priv(dev);
1747 zd->dev = dev;
1748
1da177e4
LT		 1749 zd->ap = ap;
1750 zd->usb = usb;
1751 zd->removed = 0;
1752 init_waitqueue_head(&zd->rxdataq);
1753 INIT_HLIST_HEAD(&zd->fraglist);
1754
1755 err = zd1201_fw_upload(usb, zd->ap);
1756 if (err) {
1757 dev_err(&usb->dev, "zd1201 firmware upload failed: %d\n", err);
1758 goto err_zd;
1759 }
1760
1761 zd->endp_in = 1;
1762 zd->endp_out = 1;
1763 zd->endp_out2 = 2;
1764 zd->rx_urb = usb_alloc_urb(0, GFP_KERNEL);
1765 zd->tx_urb = usb_alloc_urb(0, GFP_KERNEL);
1766 if (!zd->rx_urb || !zd->tx_urb)
1767 goto err_zd;
1768
2a806340 1769 mdelay(100);
1da177e4
LT		 1770 err = zd1201_drvr_start(zd);
1771 if (err)
1772 goto err_zd;
1773
1774 err = zd1201_setconfig16(zd, ZD1201_RID_CNFMAXDATALEN, 2312);
1775 if (err)
1776 goto err_start;
1777
1778 err = zd1201_setconfig16(zd, ZD1201_RID_TXRATECNTL,
1779 ZD1201_RATEB1 | ZD1201_RATEB2 | ZD1201_RATEB5 | ZD1201_RATEB11);
1780 if (err)
1781 goto err_start;
1782
2bd9f54d 1783 dev->netdev_ops = &zd1201_netdev_ops;
22bc1ce4 1784 dev->wireless_handlers = &zd1201_iw_handlers;
3d29b0c3 1785 dev->watchdog_timeo = ZD1201_TX_TIMEOUT;
3d29b0c3 1786 strcpy(dev->name, "wlan%d");
1da177e4
LT		 1787
1788 err = zd1201_getconfig(zd, ZD1201_RID_CNFOWNMACADDR,
3d29b0c3 1789 dev->dev_addr, dev->addr_len);
1da177e4 1790 if (err)
3d29b0c3 1791 goto err_start;
1da177e4
LT		 1792
1793 /* Set wildcard essid to match zd->essid */
1794 *(__le16 *)buf = cpu_to_le16(0);
1795 err = zd1201_setconfig(zd, ZD1201_RID_CNFDESIREDSSID, buf,
1796 IW_ESSID_MAX_SIZE+2, 1);
1797 if (err)
3d29b0c3 1798 goto err_start;
1da177e4
LT		 1799
1800 if (zd->ap)
1801 porttype = ZD1201_PORTTYPE_AP;
1802 else
1803 porttype = ZD1201_PORTTYPE_BSS;
1804 err = zd1201_setconfig16(zd, ZD1201_RID_CNFPORTTYPE, porttype);
1805 if (err)
3d29b0c3 1806 goto err_start;
1da177e4 1807
3d29b0c3 1808 SET_NETDEV_DEV(dev, &usb->dev);
a083dec0 1809
3d29b0c3 1810 err = register_netdev(dev);
1da177e4 1811 if (err)
3d29b0c3 1812 goto err_start;
1da177e4 1813 dev_info(&usb->dev, "%s: ZD1201 USB Wireless interface\n",
3d29b0c3 1814 dev->name);
2a806340 1815
1da177e4 1816 usb_set_intfdata(interface, zd);
d91928e9
PM		 1817 zd1201_enable(zd); /* zd1201 likes to startup enabled, */
1818 zd1201_disable(zd); /* interfering with all the wifis in range */
1da177e4
LT		 1819 return 0;
1820
1da177e4
LT		 1821err_start:
1822 /* Leave the device in reset state */
1823 zd1201_docmd(zd, ZD1201_CMDCODE_INIT, 0, 0, 0);
1824err_zd:
f988f272
MK		 1825 usb_free_urb(zd->tx_urb);
1826 usb_free_urb(zd->rx_urb);
3d29b0c3 1827 free_netdev(dev);
1da177e4
LT		 1828 return err;
1829}
1830
2e0a6b8c 1831static void zd1201_disconnect(struct usb_interface *interface)
1da177e4
LT		 1832{
1833 struct zd1201 *zd=(struct zd1201 *)usb_get_intfdata(interface);
1834 struct hlist_node *node, *node2;
1835 struct zd1201_frag *frag;
1836
1837 if (!zd)
1838 return;
1839 usb_set_intfdata(interface, NULL);
1da177e4
LT		 1840
1841 hlist_for_each_entry_safe(frag, node, node2, &zd->fraglist, fnode) {
1842 hlist_del_init(&frag->fnode);
1843 kfree_skb(frag->skb);
1844 kfree(frag);
1845 }
1846
1847 if (zd->tx_urb) {
1848 usb_kill_urb(zd->tx_urb);
1849 usb_free_urb(zd->tx_urb);
1850 }
1851 if (zd->rx_urb) {
1852 usb_kill_urb(zd->rx_urb);
1853 usb_free_urb(zd->rx_urb);
1854 }
b88a2a22
WC		 1855
1856 if (zd->dev) {
1857 unregister_netdev(zd->dev);
1858 free_netdev(zd->dev);
1859 }
1da177e4
LT		 1860}
1861
a3c900bb
CL		 1862#ifdef CONFIG_PM
1863
1864static int zd1201_suspend(struct usb_interface *interface,
1865 pm_message_t message)
1866{
1867 struct zd1201 *zd = usb_get_intfdata(interface);
1868
1869 netif_device_detach(zd->dev);
1870
1871 zd->was_enabled = zd->mac_enabled;
1872
1873 if (zd->was_enabled)
1874 return zd1201_disable(zd);
1875 else
1876 return 0;
1877}
1878
1879static int zd1201_resume(struct usb_interface *interface)
1880{
1881 struct zd1201 *zd = usb_get_intfdata(interface);
1882
f58f97fa
CL		 1883 if (!zd || !zd->dev)
1884 return -ENODEV;
1885
a3c900bb
CL		 1886 netif_device_attach(zd->dev);
1887
1888 if (zd->was_enabled)
1889 return zd1201_enable(zd);
1890 else
1891 return 0;
1892}
1893
1894#else
1895
1896#define zd1201_suspend NULL
1897#define zd1201_resume NULL
1898
1899#endif
1900
2e0a6b8c 1901static struct usb_driver zd1201_usb = {
1da177e4
LT		 1902 .name = "zd1201",
1903 .probe = zd1201_probe,
1904 .disconnect = zd1201_disconnect,
1905 .id_table = zd1201_table,
a3c900bb
CL		 1906 .suspend = zd1201_suspend,
1907 .resume = zd1201_resume,
1da177e4
LT		 1908};
1909
1910static int __init zd1201_init(void)
1911{
1912 return usb_register(&zd1201_usb);
1913}
1914
1915static void __exit zd1201_cleanup(void)
1916{
1917 usb_deregister(&zd1201_usb);
1918}
1919
1920module_init(zd1201_init);
1921module_exit(zd1201_cleanup);
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