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Merge branch 'upstream-fixes' into upstream
[linux-2.6-block.git] / drivers / usb / net / 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>
20#include <net/iw_handler.h>
21#include <linux/string.h>
22#include <linux/if_arp.h>
23#include <linux/firmware.h>
3dcefbc9 24#include <net/ieee80211.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
36static int ap = 0; /* Are we an AP or a normal station? */
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;
52 char* data;
53 unsigned long len;
54 int err;
55 unsigned char ret;
56 char *buf;
57 char *fwfile;
58
59 if (apfw)
60 fwfile = "zd1201-ap.fw";
61 else
62 fwfile = "zd1201.fw";
63
64 err = request_firmware(&fw_entry, fwfile, &dev->dev);
65 if (err) {
66 dev_err(&dev->dev, "Failed to load %s firmware file!\n", fwfile);
67 dev_err(&dev->dev, "Make sure the hotplug firmware loader is installed.\n");
68 dev_err(&dev->dev, "Goto http://linux-lc100020.sourceforge.net for more info\n");
69 return err;
70 }
71
72 data = fw_entry->data;
73 len = fw_entry->size;
74
75 buf = kmalloc(1024, GFP_ATOMIC);
76 if (!buf)
77 goto exit;
78
79 while (len > 0) {
80 int translen = (len > 1024) ? 1024 : len;
81 memcpy(buf, data, translen);
82
83 err = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), 0,
84 USB_DIR_OUT | 0x40, 0, 0, buf, translen,
85 ZD1201_FW_TIMEOUT);
86 if (err < 0)
87 goto exit;
88
89 len -= translen;
90 data += translen;
91 }
92
93 err = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), 0x2,
94 USB_DIR_OUT | 0x40, 0, 0, NULL, 0, ZD1201_FW_TIMEOUT);
95 if (err < 0)
96 goto exit;
97
98 err = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), 0x4,
99 USB_DIR_IN | 0x40, 0,0, &ret, sizeof(ret), ZD1201_FW_TIMEOUT);
100 if (err < 0)
101 goto exit;
102
103 if (ret & 0x80) {
104 err = -EIO;
105 goto exit;
106 }
107
108 err = 0;
109exit:
1bc3c9e1 110 kfree(buf);
1da177e4
LT		 111 release_firmware(fw_entry);
112 return err;
113}
114
2e0a6b8c 115static void zd1201_usbfree(struct urb *urb, struct pt_regs *regs)
1da177e4
LT		 116{
117 struct zd1201 *zd = urb->context;
118
119 switch(urb->status) {
120 case -EILSEQ:
121 case -ENODEV:
122 case -ETIMEDOUT:
123 case -ENOENT:
124 case -EPIPE:
125 case -EOVERFLOW:
126 case -ESHUTDOWN:
127 dev_warn(&zd->usb->dev, "%s: urb failed: %d\n",
128 zd->dev->name, urb->status);
129 }
130
131 kfree(urb->transfer_buffer);
132 usb_free_urb(urb);
133 return;
134}
135
136/* cmdreq message:
137 u32 type
138 u16 cmd
139 u16 parm0
140 u16 parm1
141 u16 parm2
142 u8 pad[4]
143
144 total: 4 + 2 + 2 + 2 + 2 + 4 = 16
145*/
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),
169 command, 16, zd1201_usbfree, zd);
170 ret = usb_submit_urb(urb, GFP_ATOMIC);
171 if (ret) {
172 kfree(command);
173 usb_free_urb(urb);
174 }
175
176 return ret;
177}
178
179/* Callback after sending out a packet */
2e0a6b8c 180static void zd1201_usbtx(struct urb *urb, struct pt_regs *regs)
1da177e4
LT		 181{
182 struct zd1201 *zd = urb->context;
183 netif_wake_queue(zd->dev);
184 return;
185}
186
093cf723 187/* Incoming data */
2e0a6b8c 188static void zd1201_usbrx(struct urb *urb, struct pt_regs *regs)
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
196 if (!zd) {
197 free = 1;
198 goto exit;
199 }
200
201 switch(urb->status) {
202 case -EILSEQ:
203 case -ENODEV:
204 case -ETIMEDOUT:
205 case -ENOENT:
206 case -EPIPE:
207 case -EOVERFLOW:
208 case -ESHUTDOWN:
209 dev_warn(&zd->usb->dev, "%s: rx urb failed: %d\n",
210 zd->dev->name, urb->status);
211 free = 1;
212 goto exit;
213 }
214
215 if (urb->status != 0 || urb->actual_length == 0)
216 goto resubmit;
217
218 type = data[0];
219 if (type == ZD1201_PACKET_EVENTSTAT || type == ZD1201_PACKET_RESOURCE) {
220 memcpy(zd->rxdata, data, urb->actual_length);
221 zd->rxlen = urb->actual_length;
222 zd->rxdatas = 1;
223 wake_up(&zd->rxdataq);
224 }
225 /* Info frame */
226 if (type == ZD1201_PACKET_INQUIRE) {
227 int i = 0;
228 unsigned short infotype, framelen, copylen;
229 framelen = le16_to_cpu(*(__le16*)&data[4]);
230 infotype = le16_to_cpu(*(__le16*)&data[6]);
231
232 if (infotype == ZD1201_INF_LINKSTATUS) {
233 short linkstatus;
234
235 linkstatus = le16_to_cpu(*(__le16*)&data[8]);
236 switch(linkstatus) {
237 case 1:
238 netif_carrier_on(zd->dev);
239 break;
240 case 2:
241 netif_carrier_off(zd->dev);
242 break;
243 case 3:
244 netif_carrier_off(zd->dev);
245 break;
246 case 4:
247 netif_carrier_on(zd->dev);
248 break;
249 default:
250 netif_carrier_off(zd->dev);
251 }
252 goto resubmit;
253 }
254 if (infotype == ZD1201_INF_ASSOCSTATUS) {
255 short status = le16_to_cpu(*(__le16*)(data+8));
256 int event;
257 union iwreq_data wrqu;
258
259 switch (status) {
260 case ZD1201_ASSOCSTATUS_STAASSOC:
261 case ZD1201_ASSOCSTATUS_REASSOC:
262 event = IWEVREGISTERED;
263 break;
264 case ZD1201_ASSOCSTATUS_DISASSOC:
265 case ZD1201_ASSOCSTATUS_ASSOCFAIL:
266 case ZD1201_ASSOCSTATUS_AUTHFAIL:
267 default:
268 event = IWEVEXPIRED;
269 }
270 memcpy(wrqu.addr.sa_data, data+10, ETH_ALEN);
271 wrqu.addr.sa_family = ARPHRD_ETHER;
272
273 /* Send event to user space */
274 wireless_send_event(zd->dev, event, &wrqu, NULL);
275
276 goto resubmit;
277 }
278 if (infotype == ZD1201_INF_AUTHREQ) {
279 union iwreq_data wrqu;
280
281 memcpy(wrqu.addr.sa_data, data+8, ETH_ALEN);
282 wrqu.addr.sa_family = ARPHRD_ETHER;
283 /* There isn't a event that trully fits this request.
284 We assume that userspace will be smart enough to
285 see a new station being expired and sends back a
286 authstation ioctl to authorize it. */
287 wireless_send_event(zd->dev, IWEVEXPIRED, &wrqu, NULL);
288 goto resubmit;
289 }
290 /* Other infotypes are handled outside this handler */
291 zd->rxlen = 0;
292 while (i < urb->actual_length) {
293 copylen = le16_to_cpu(*(__le16*)&data[i+2]);
294 /* Sanity check, sometimes we get junk */
295 if (copylen+zd->rxlen > sizeof(zd->rxdata))
296 break;
297 memcpy(zd->rxdata+zd->rxlen, data+i+4, copylen);
298 zd->rxlen += copylen;
299 i += 64;
300 }
301 if (i >= urb->actual_length) {
302 zd->rxdatas = 1;
303 wake_up(&zd->rxdataq);
304 }
305 goto resubmit;
306 }
307 /* Actual data */
308 if (data[urb->actual_length-1] == ZD1201_PACKET_RXDATA) {
309 int datalen = urb->actual_length-1;
310 unsigned short len, fc, seq;
311 struct hlist_node *node;
312
313 len = ntohs(*(__be16 *)&data[datalen-2]);
314 if (len>datalen)
315 len=datalen;
316 fc = le16_to_cpu(*(__le16 *)&data[datalen-16]);
317 seq = le16_to_cpu(*(__le16 *)&data[datalen-24]);
318
319 if(zd->monitor) {
320 if (datalen < 24)
321 goto resubmit;
322 if (!(skb = dev_alloc_skb(datalen+24)))
323 goto resubmit;
324
325 memcpy(skb_put(skb, 2), &data[datalen-16], 2);
326 memcpy(skb_put(skb, 2), &data[datalen-2], 2);
327 memcpy(skb_put(skb, 6), &data[datalen-14], 6);
328 memcpy(skb_put(skb, 6), &data[datalen-22], 6);
329 memcpy(skb_put(skb, 6), &data[datalen-8], 6);
330 memcpy(skb_put(skb, 2), &data[datalen-24], 2);
331 memcpy(skb_put(skb, len), data, len);
332 skb->dev = zd->dev;
333 skb->dev->last_rx = jiffies;
334 skb->protocol = eth_type_trans(skb, zd->dev);
335 zd->stats.rx_packets++;
336 zd->stats.rx_bytes += skb->len;
337 netif_rx(skb);
338 goto resubmit;
339 }
340
3dcefbc9
AV		 341 if ((seq & IEEE80211_SCTL_FRAG) ||
342 (fc & IEEE80211_FCTL_MOREFRAGS)) {
1da177e4
LT		 343 struct zd1201_frag *frag = NULL;
344 char *ptr;
345
346 if (datalen<14)
347 goto resubmit;
3dcefbc9 348 if ((seq & IEEE80211_SCTL_FRAG) == 0) {
81065e2f 349 frag = kmalloc(sizeof(*frag), GFP_ATOMIC);
1da177e4
LT		 350 if (!frag)
351 goto resubmit;
3dcefbc9 352 skb = dev_alloc_skb(IEEE80211_DATA_LEN +14+2);
1da177e4
LT		 353 if (!skb) {
354 kfree(frag);
355 goto resubmit;
356 }
357 frag->skb = skb;
3dcefbc9 358 frag->seq = seq & IEEE80211_SCTL_SEQ;
1da177e4
LT		 359 skb_reserve(skb, 2);
360 memcpy(skb_put(skb, 12), &data[datalen-14], 12);
361 memcpy(skb_put(skb, 2), &data[6], 2);
362 memcpy(skb_put(skb, len), data+8, len);
363 hlist_add_head(&frag->fnode, &zd->fraglist);
364 goto resubmit;
365 }
366 hlist_for_each_entry(frag, node, &zd->fraglist, fnode)
3dcefbc9 367 if(frag->seq == (seq&IEEE80211_SCTL_SEQ))
1da177e4
LT		 368 break;
369 if (!frag)
370 goto resubmit;
371 skb = frag->skb;
372 ptr = skb_put(skb, len);
373 if (ptr)
374 memcpy(ptr, data+8, len);
3dcefbc9 375 if (fc & IEEE80211_FCTL_MOREFRAGS)
1da177e4
LT		 376 goto resubmit;
377 hlist_del_init(&frag->fnode);
378 kfree(frag);
379 /* Fallthrough */
380 } else {
381 if (datalen<14)
382 goto resubmit;
383 skb = dev_alloc_skb(len + 14 + 2);
384 if (!skb)
385 goto resubmit;
386 skb_reserve(skb, 2);
387 memcpy(skb_put(skb, 12), &data[datalen-14], 12);
388 memcpy(skb_put(skb, 2), &data[6], 2);
389 memcpy(skb_put(skb, len), data+8, len);
390 }
391 skb->dev = zd->dev;
392 skb->dev->last_rx = jiffies;
393 skb->protocol = eth_type_trans(skb, zd->dev);
394 zd->stats.rx_packets++;
395 zd->stats.rx_bytes += skb->len;
396 netif_rx(skb);
397 }
398resubmit:
399 memset(data, 0, ZD1201_RXSIZE);
400
401 urb->status = 0;
402 urb->dev = zd->usb;
403 if(usb_submit_urb(urb, GFP_ATOMIC))
404 free = 1;
405
406exit:
407 if (free) {
408 zd->rxlen = 0;
409 zd->rxdatas = 1;
410 wake_up(&zd->rxdataq);
411 kfree(urb->transfer_buffer);
412 }
413 return;
414}
415
416static int zd1201_getconfig(struct zd1201 *zd, int rid, void *riddata,
417 unsigned int riddatalen)
418{
419 int err;
420 int i = 0;
421 int code;
422 int rid_fid;
423 int length;
424 unsigned char *pdata;
425
426 zd->rxdatas = 0;
427 err = zd1201_docmd(zd, ZD1201_CMDCODE_ACCESS, rid, 0, 0);
428 if (err)
429 return err;
430
431 wait_event_interruptible(zd->rxdataq, zd->rxdatas);
432 if (!zd->rxlen)
433 return -EIO;
434
435 code = le16_to_cpu(*(__le16*)(&zd->rxdata[4]));
436 rid_fid = le16_to_cpu(*(__le16*)(&zd->rxdata[6]));
437 length = le16_to_cpu(*(__le16*)(&zd->rxdata[8]));
438 if (length > zd->rxlen)
439 length = zd->rxlen-6;
440
441 /* If access bit is not on, then error */
442 if ((code & ZD1201_ACCESSBIT) != ZD1201_ACCESSBIT || rid_fid != rid )
443 return -EINVAL;
444
445 /* Not enough buffer for allocating data */
446 if (riddatalen != (length - 4)) {
447 dev_dbg(&zd->usb->dev, "riddatalen mismatches, expected=%u, (packet=%u) length=%u, rid=0x%04X, rid_fid=0x%04X\n",
448 riddatalen, zd->rxlen, length, rid, rid_fid);
449 return -ENODATA;
450 }
451
452 zd->rxdatas = 0;
453 /* Issue SetRxRid commnd */
454 err = zd1201_docmd(zd, ZD1201_CMDCODE_SETRXRID, rid, 0, length);
455 if (err)
456 return err;
457
458 /* Receive RID record from resource packets */
459 wait_event_interruptible(zd->rxdataq, zd->rxdatas);
460 if (!zd->rxlen)
461 return -EIO;
462
463 if (zd->rxdata[zd->rxlen - 1] != ZD1201_PACKET_RESOURCE) {
464 dev_dbg(&zd->usb->dev, "Packet type mismatch: 0x%x not 0x3\n",
465 zd->rxdata[zd->rxlen-1]);
466 return -EINVAL;
467 }
468
469 /* Set the data pointer and received data length */
470 pdata = zd->rxdata;
471 length = zd->rxlen;
472
473 do {
474 int actual_length;
475
476 actual_length = (length > 64) ? 64 : length;
477
478 if(pdata[0] != 0x3) {
479 dev_dbg(&zd->usb->dev, "Rx Resource packet type error: %02X\n",
480 pdata[0]);
481 return -EINVAL;
482 }
483
484 if (actual_length != 64) {
485 /* Trim the last packet type byte */
486 actual_length--;
487 }
488
489 /* Skip the 4 bytes header (RID length and RID) */
490 if(i == 0) {
491 pdata += 8;
492 actual_length -= 8;
493 }
494 else {
495 pdata += 4;
496 actual_length -= 4;
497 }
498
499 memcpy(riddata, pdata, actual_length);
500 riddata += actual_length;
501 pdata += actual_length;
502 length -= 64;
503 i++;
504 } while (length > 0);
505
506 return 0;
507}
508
509/*
510 * resreq:
511 * byte type
512 * byte sequence
513 * u16 reserved
514 * byte data[12]
515 * total: 16
516 */
517static int zd1201_setconfig(struct zd1201 *zd, int rid, void *buf, int len, int wait)
518{
519 int err;
520 unsigned char *request;
521 int reqlen;
522 char seq=0;
523 struct urb *urb;
55016f10 524 gfp_t gfp_mask = wait ? GFP_NOIO : GFP_ATOMIC;
1da177e4
LT		 525
526 len += 4; /* first 4 are for header */
527
528 zd->rxdatas = 0;
529 zd->rxlen = 0;
530 for (seq=0; len > 0; seq++) {
531 request = kmalloc(16, gfp_mask);
532 if (!request)
533 return -ENOMEM;
534 urb = usb_alloc_urb(0, gfp_mask);
535 if (!urb) {
536 kfree(request);
537 return -ENOMEM;
538 }
539 memset(request, 0, 16);
540 reqlen = len>12 ? 12 : len;
541 request[0] = ZD1201_USB_RESREQ;
542 request[1] = seq;
543 request[2] = 0;
544 request[3] = 0;
545 if (request[1] == 0) {
546 /* add header */
547 *(__le16*)&request[4] = cpu_to_le16((len-2+1)/2);
548 *(__le16*)&request[6] = cpu_to_le16(rid);
549 memcpy(request+8, buf, reqlen-4);
550 buf += reqlen-4;
551 } else {
552 memcpy(request+4, buf, reqlen);
553 buf += reqlen;
554 }
555
556 len -= reqlen;
557
558 usb_fill_bulk_urb(urb, zd->usb, usb_sndbulkpipe(zd->usb,
559 zd->endp_out2), request, 16, zd1201_usbfree, zd);
560 err = usb_submit_urb(urb, gfp_mask);
561 if (err)
562 goto err;
563 }
564
565 request = kmalloc(16, gfp_mask);
566 if (!request)
567 return -ENOMEM;
568 urb = usb_alloc_urb(0, gfp_mask);
569 if (!urb) {
570 kfree(request);
571 return -ENOMEM;
572 }
573 *((__le32*)request) = cpu_to_le32(ZD1201_USB_CMDREQ);
574 *((__le16*)&request[4]) =
575 cpu_to_le16(ZD1201_CMDCODE_ACCESS|ZD1201_ACCESSBIT);
576 *((__le16*)&request[6]) = cpu_to_le16(rid);
577 *((__le16*)&request[8]) = cpu_to_le16(0);
578 *((__le16*)&request[10]) = cpu_to_le16(0);
579 usb_fill_bulk_urb(urb, zd->usb, usb_sndbulkpipe(zd->usb, zd->endp_out2),
580 request, 16, zd1201_usbfree, zd);
581 err = usb_submit_urb(urb, gfp_mask);
582 if (err)
583 goto err;
584
585 if (wait) {
586 wait_event_interruptible(zd->rxdataq, zd->rxdatas);
587 if (!zd->rxlen || le16_to_cpu(*(__le16*)&zd->rxdata[6]) != rid) {
588 dev_dbg(&zd->usb->dev, "wrong or no RID received\n");
589 }
590 }
591
592 return 0;
593err:
594 kfree(request);
595 usb_free_urb(urb);
596 return err;
597}
598
599static inline int zd1201_getconfig16(struct zd1201 *zd, int rid, short *val)
600{
601 int err;
602 __le16 zdval;
603
604 err = zd1201_getconfig(zd, rid, &zdval, sizeof(__le16));
605 if (err)
606 return err;
607 *val = le16_to_cpu(zdval);
608 return 0;
609}
610
611static inline int zd1201_setconfig16(struct zd1201 *zd, int rid, short val)
612{
613 __le16 zdval = cpu_to_le16(val);
614 return (zd1201_setconfig(zd, rid, &zdval, sizeof(__le16), 1));
615}
616
2e0a6b8c 617static int zd1201_drvr_start(struct zd1201 *zd)
1da177e4
LT		 618{
619 int err, i;
620 short max;
621 __le16 zdmax;
622 unsigned char *buffer;
623
80b6ca48 624 buffer = kzalloc(ZD1201_RXSIZE, GFP_KERNEL);
1da177e4
LT		 625 if (!buffer)
626 return -ENOMEM;
1da177e4
LT		 627
628 usb_fill_bulk_urb(zd->rx_urb, zd->usb,
629 usb_rcvbulkpipe(zd->usb, zd->endp_in), buffer, ZD1201_RXSIZE,
630 zd1201_usbrx, zd);
631
632 err = usb_submit_urb(zd->rx_urb, GFP_KERNEL);
633 if (err)
634 goto err_buffer;
635
636 err = zd1201_docmd(zd, ZD1201_CMDCODE_INIT, 0, 0, 0);
637 if (err)
638 goto err_urb;
639
640 err = zd1201_getconfig(zd, ZD1201_RID_CNFMAXTXBUFFERNUMBER, &zdmax,
641 sizeof(__le16));
642 if (err)
643 goto err_urb;
644
645 max = le16_to_cpu(zdmax);
646 for (i=0; i<max; i++) {
647 err = zd1201_docmd(zd, ZD1201_CMDCODE_ALLOC, 1514, 0, 0);
648 if (err)
649 goto err_urb;
650 }
651
652 return 0;
653
654err_urb:
655 usb_kill_urb(zd->rx_urb);
656 return err;
657err_buffer:
658 kfree(buffer);
659 return err;
660}
661
662/* Magic alert: The firmware doesn't seem to like the MAC state being
663 * toggled in promisc (aka monitor) mode.
664 * (It works a number of times, but will halt eventually)
665 * So we turn it of before disabling and on after enabling if needed.
666 */
667static int zd1201_enable(struct zd1201 *zd)
668{
669 int err;
670
671 if (zd->mac_enabled)
672 return 0;
673
674 err = zd1201_docmd(zd, ZD1201_CMDCODE_ENABLE, 0, 0, 0);
675 if (!err)
676 zd->mac_enabled = 1;
677
678 if (zd->monitor)
679 err = zd1201_setconfig16(zd, ZD1201_RID_PROMISCUOUSMODE, 1);
680
681 return err;
682}
683
684static int zd1201_disable(struct zd1201 *zd)
685{
686 int err;
687
688 if (!zd->mac_enabled)
689 return 0;
690 if (zd->monitor) {
691 err = zd1201_setconfig16(zd, ZD1201_RID_PROMISCUOUSMODE, 0);
692 if (err)
693 return err;
694 }
695
696 err = zd1201_docmd(zd, ZD1201_CMDCODE_DISABLE, 0, 0, 0);
697 if (!err)
698 zd->mac_enabled = 0;
699 return err;
700}
701
702static int zd1201_mac_reset(struct zd1201 *zd)
703{
704 if (!zd->mac_enabled)
705 return 0;
706 zd1201_disable(zd);
707 return zd1201_enable(zd);
708}
709
710static int zd1201_join(struct zd1201 *zd, char *essid, int essidlen)
711{
712 int err, val;
713 char buf[IW_ESSID_MAX_SIZE+2];
714
715 err = zd1201_disable(zd);
716 if (err)
717 return err;
718
719 val = ZD1201_CNFAUTHENTICATION_OPENSYSTEM;
720 val |= ZD1201_CNFAUTHENTICATION_SHAREDKEY;
721 err = zd1201_setconfig16(zd, ZD1201_RID_CNFAUTHENTICATION, val);
722 if (err)
723 return err;
724
725 *(__le16 *)buf = cpu_to_le16(essidlen);
726 memcpy(buf+2, essid, essidlen);
727 if (!zd->ap) { /* Normal station */
728 err = zd1201_setconfig(zd, ZD1201_RID_CNFDESIREDSSID, buf,
729 IW_ESSID_MAX_SIZE+2, 1);
730 if (err)
731 return err;
732 } else { /* AP */
733 err = zd1201_setconfig(zd, ZD1201_RID_CNFOWNSSID, buf,
734 IW_ESSID_MAX_SIZE+2, 1);
735 if (err)
736 return err;
737 }
738
739 err = zd1201_setconfig(zd, ZD1201_RID_CNFOWNMACADDR,
740 zd->dev->dev_addr, zd->dev->addr_len, 1);
741 if (err)
742 return err;
743
744 err = zd1201_enable(zd);
745 if (err)
746 return err;
747
748 msleep(100);
749 return 0;
750}
751
752static int zd1201_net_open(struct net_device *dev)
753{
754 struct zd1201 *zd = (struct zd1201 *)dev->priv;
755
756 /* Start MAC with wildcard if no essid set */
757 if (!zd->mac_enabled)
758 zd1201_join(zd, zd->essid, zd->essidlen);
759 netif_start_queue(dev);
760
761 return 0;
762}
763
764static int zd1201_net_stop(struct net_device *dev)
765{
766 netif_stop_queue(dev);
767
768 return 0;
769}
770
771/*
772 RFC 1042 encapsulates Ethernet frames in 802.11 frames
773 by prefixing them with 0xaa, 0xaa, 0x03) followed by a SNAP OID of 0
093cf723 774 (0x00, 0x00, 0x00). Zd requires an additional padding, copy
1da177e4
LT		 775 of ethernet addresses, length of the standard RFC 1042 packet
776 and a command byte (which is nul for tx).
777
778 tx frame (from Wlan NG):
779 RFC 1042:
780 llc 0xAA 0xAA 0x03 (802.2 LLC)
781 snap 0x00 0x00 0x00 (Ethernet encapsulated)
782 type 2 bytes, Ethernet type field
783 payload (minus eth header)
784 Zydas specific:
785 padding 1B if (skb->len+8+1)%64==0
786 Eth MAC addr 12 bytes, Ethernet MAC addresses
787 length 2 bytes, RFC 1042 packet length
788 (llc+snap+type+payload)
789 zd 1 null byte, zd1201 packet type
790 */
791static int zd1201_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
792{
793 struct zd1201 *zd = (struct zd1201 *)dev->priv;
794 unsigned char *txbuf = zd->txdata;
795 int txbuflen, pad = 0, err;
796 struct urb *urb = zd->tx_urb;
797
798 if (!zd->mac_enabled || zd->monitor) {
799 zd->stats.tx_dropped++;
800 kfree_skb(skb);
801 return 0;
802 }
803 netif_stop_queue(dev);
804
805 txbuflen = skb->len + 8 + 1;
806 if (txbuflen%64 == 0) {
807 pad = 1;
808 txbuflen++;
809 }
810 txbuf[0] = 0xAA;
811 txbuf[1] = 0xAA;
812 txbuf[2] = 0x03;
813 txbuf[3] = 0x00; /* rfc1042 */
814 txbuf[4] = 0x00;
815 txbuf[5] = 0x00;
816
817 memcpy(txbuf+6, skb->data+12, skb->len-12);
818 if (pad)
819 txbuf[skb->len-12+6]=0;
820 memcpy(txbuf+skb->len-12+6+pad, skb->data, 12);
821 *(__be16*)&txbuf[skb->len+6+pad] = htons(skb->len-12+6);
822 txbuf[txbuflen-1] = 0;
823
824 usb_fill_bulk_urb(urb, zd->usb, usb_sndbulkpipe(zd->usb, zd->endp_out),
825 txbuf, txbuflen, zd1201_usbtx, zd);
826
827 err = usb_submit_urb(zd->tx_urb, GFP_ATOMIC);
828 if (err) {
829 zd->stats.tx_errors++;
830 netif_start_queue(dev);
831 return err;
832 }
833 zd->stats.tx_packets++;
834 zd->stats.tx_bytes += skb->len;
835 dev->trans_start = jiffies;
836 kfree_skb(skb);
837
838 return 0;
839}
840
841static void zd1201_tx_timeout(struct net_device *dev)
842{
843 struct zd1201 *zd = (struct zd1201 *)dev->priv;
844
845 if (!zd)
846 return;
847 dev_warn(&zd->usb->dev, "%s: TX timeout, shooting down urb\n",
848 dev->name);
1da177e4
LT		 849 usb_unlink_urb(zd->tx_urb);
850 zd->stats.tx_errors++;
851 /* Restart the timeout to quiet the watchdog: */
852 dev->trans_start = jiffies;
853}
854
855static int zd1201_set_mac_address(struct net_device *dev, void *p)
856{
857 struct sockaddr *addr = p;
858 struct zd1201 *zd = (struct zd1201 *)dev->priv;
859 int err;
860
861 if (!zd)
862 return -ENODEV;
863
864 err = zd1201_setconfig(zd, ZD1201_RID_CNFOWNMACADDR,
865 addr->sa_data, dev->addr_len, 1);
866 if (err)
867 return err;
868 memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
869
870 return zd1201_mac_reset(zd);
871}
872
873static struct net_device_stats *zd1201_get_stats(struct net_device *dev)
874{
875 struct zd1201 *zd = (struct zd1201 *)dev->priv;
876
877 return &zd->stats;
878}
879
880static struct iw_statistics *zd1201_get_wireless_stats(struct net_device *dev)
881{
882 struct zd1201 *zd = (struct zd1201 *)dev->priv;
883
884 return &zd->iwstats;
885}
886
887static void zd1201_set_multicast(struct net_device *dev)
888{
889 struct zd1201 *zd = (struct zd1201 *)dev->priv;
890 struct dev_mc_list *mc = dev->mc_list;
891 unsigned char reqbuf[ETH_ALEN*ZD1201_MAXMULTI];
892 int i;
893
894 if (dev->mc_count > ZD1201_MAXMULTI)
895 return;
896
897 for (i=0; i<dev->mc_count; i++) {
898 memcpy(reqbuf+i*ETH_ALEN, mc->dmi_addr, ETH_ALEN);
899 mc = mc->next;
900 }
901 zd1201_setconfig(zd, ZD1201_RID_CNFGROUPADDRESS, reqbuf,
902 dev->mc_count*ETH_ALEN, 0);
903
904}
905
906static int zd1201_config_commit(struct net_device *dev,
907 struct iw_request_info *info, struct iw_point *data, char *essid)
908{
909 struct zd1201 *zd = (struct zd1201 *)dev->priv;
910
911 return zd1201_mac_reset(zd);
912}
913
914static int zd1201_get_name(struct net_device *dev,
915 struct iw_request_info *info, char *name, char *extra)
916{
917 strcpy(name, "IEEE 802.11b");
918
919 return 0;
920}
921
922static int zd1201_set_freq(struct net_device *dev,
923 struct iw_request_info *info, struct iw_freq *freq, char *extra)
924{
925 struct zd1201 *zd = (struct zd1201 *)dev->priv;
926 short channel = 0;
927 int err;
928
929 if (freq->e == 0)
930 channel = freq->m;
931 else {
932 if (freq->m >= 2482)
933 channel = 14;
934 if (freq->m >= 2407)
935 channel = (freq->m-2407)/5;
936 }
937
938 err = zd1201_setconfig16(zd, ZD1201_RID_CNFOWNCHANNEL, channel);
939 if (err)
940 return err;
941
942 zd1201_mac_reset(zd);
943
944 return 0;
945}
946
947static int zd1201_get_freq(struct net_device *dev,
948 struct iw_request_info *info, struct iw_freq *freq, char *extra)
949{
950 struct zd1201 *zd = (struct zd1201 *)dev->priv;
951 short channel;
952 int err;
953
954 err = zd1201_getconfig16(zd, ZD1201_RID_CNFOWNCHANNEL, &channel);
955 if (err)
956 return err;
957 freq->e = 0;
958 freq->m = channel;
959
960 return 0;
961}
962
963static int zd1201_set_mode(struct net_device *dev,
964 struct iw_request_info *info, __u32 *mode, char *extra)
965{
966 struct zd1201 *zd = (struct zd1201 *)dev->priv;
967 short porttype, monitor = 0;
968 unsigned char buffer[IW_ESSID_MAX_SIZE+2];
969 int err;
970
971 if (zd->ap) {
972 if (*mode != IW_MODE_MASTER)
973 return -EINVAL;
974 return 0;
975 }
976
977 err = zd1201_setconfig16(zd, ZD1201_RID_PROMISCUOUSMODE, 0);
978 if (err)
979 return err;
980 zd->dev->type = ARPHRD_ETHER;
981 switch(*mode) {
982 case IW_MODE_MONITOR:
983 monitor = 1;
984 zd->dev->type = ARPHRD_IEEE80211;
985 /* Make sure we are no longer associated with by
986 setting an 'impossible' essid.
987 (otherwise we mess up firmware)
988 */
989 zd1201_join(zd, "\0-*#\0", 5);
990 /* Put port in pIBSS */
991 case 8: /* No pseudo-IBSS in wireless extensions (yet) */
992 porttype = ZD1201_PORTTYPE_PSEUDOIBSS;
993 break;
994 case IW_MODE_ADHOC:
995 porttype = ZD1201_PORTTYPE_IBSS;
996 break;
997 case IW_MODE_INFRA:
998 porttype = ZD1201_PORTTYPE_BSS;
999 break;
1000 default:
1001 return -EINVAL;
1002 }
1003
1004 err = zd1201_setconfig16(zd, ZD1201_RID_CNFPORTTYPE, porttype);
1005 if (err)
1006 return err;
1007 if (zd->monitor && !monitor) {
1008 zd1201_disable(zd);
1009 *(__le16 *)buffer = cpu_to_le16(zd->essidlen);
1010 memcpy(buffer+2, zd->essid, zd->essidlen);
1011 err = zd1201_setconfig(zd, ZD1201_RID_CNFDESIREDSSID,
1012 buffer, IW_ESSID_MAX_SIZE+2, 1);
1013 if (err)
1014 return err;
1015 }
1016 zd->monitor=monitor;
1017 /* If monitor mode is set we don't actually turn it on here since it
1018 * is done during mac reset anyway (see zd1201_mac_enable).
1019 */
1020
1021 zd1201_mac_reset(zd);
1022
1023 return 0;
1024}
1025
1026static int zd1201_get_mode(struct net_device *dev,
1027 struct iw_request_info *info, __u32 *mode, char *extra)
1028{
1029 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1030 short porttype;
1031 int err;
1032
1033 err = zd1201_getconfig16(zd, ZD1201_RID_CNFPORTTYPE, &porttype);
1034 if (err)
1035 return err;
1036 switch(porttype) {
1037 case ZD1201_PORTTYPE_IBSS:
1038 *mode = IW_MODE_ADHOC;
1039 break;
1040 case ZD1201_PORTTYPE_BSS:
1041 *mode = IW_MODE_INFRA;
1042 break;
1043 case ZD1201_PORTTYPE_WDS:
1044 *mode = IW_MODE_REPEAT;
1045 break;
1046 case ZD1201_PORTTYPE_PSEUDOIBSS:
1047 *mode = 8;/* No Pseudo-IBSS... */
1048 break;
1049 case ZD1201_PORTTYPE_AP:
1050 *mode = IW_MODE_MASTER;
1051 break;
1052 default:
1053 dev_dbg(&zd->usb->dev, "Unknown porttype: %d\n",
1054 porttype);
1055 *mode = IW_MODE_AUTO;
1056 }
1057 if (zd->monitor)
1058 *mode = IW_MODE_MONITOR;
1059
1060 return 0;
1061}
1062
1063static int zd1201_get_range(struct net_device *dev,
1064 struct iw_request_info *info, struct iw_point *wrq, char *extra)
1065{
1066 struct iw_range *range = (struct iw_range *)extra;
1067
1068 wrq->length = sizeof(struct iw_range);
1069 memset(range, 0, sizeof(struct iw_range));
1070 range->we_version_compiled = WIRELESS_EXT;
1071 range->we_version_source = WIRELESS_EXT;
1072
1073 range->max_qual.qual = 128;
1074 range->max_qual.level = 128;
1075 range->max_qual.noise = 128;
1076 range->max_qual.updated = 7;
1077
1078 range->encoding_size[0] = 5;
1079 range->encoding_size[1] = 13;
1080 range->num_encoding_sizes = 2;
1081 range->max_encoding_tokens = ZD1201_NUMKEYS;
1082
1083 range->num_bitrates = 4;
1084 range->bitrate[0] = 1000000;
1085 range->bitrate[1] = 2000000;
1086 range->bitrate[2] = 5500000;
1087 range->bitrate[3] = 11000000;
1088
1089 range->min_rts = 0;
1090 range->min_frag = ZD1201_FRAGMIN;
1091 range->max_rts = ZD1201_RTSMAX;
1092 range->min_frag = ZD1201_FRAGMAX;
1093
1094 return 0;
1095}
1096
1097/* Little bit of magic here: we only get the quality if we poll
1098 * for it, and we never get an actual request to trigger such
093cf723 1099 * a poll. Therefore we 'assume' that the user will soon ask for
1da177e4
LT		 1100 * the stats after asking the bssid.
1101 */
1102static int zd1201_get_wap(struct net_device *dev,
1103 struct iw_request_info *info, struct sockaddr *ap_addr, char *extra)
1104{
1105 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1106 unsigned char buffer[6];
1107
1108 if (!zd1201_getconfig(zd, ZD1201_RID_COMMSQUALITY, buffer, 6)) {
093cf723 1109 /* Unfortunately the quality and noise reported is useless.
1da177e4
LT		 1110 they seem to be accumulators that increase until you
1111 read them, unless we poll on a fixed interval we can't
1112 use them
1113 */
1114 /*zd->iwstats.qual.qual = le16_to_cpu(((__le16 *)buffer)[0]);*/
1115 zd->iwstats.qual.level = le16_to_cpu(((__le16 *)buffer)[1]);
1116 /*zd->iwstats.qual.noise = le16_to_cpu(((__le16 *)buffer)[2]);*/
1117 zd->iwstats.qual.updated = 2;
1118 }
1119
1120 return zd1201_getconfig(zd,ZD1201_RID_CURRENTBSSID,ap_addr->sa_data,6);
1121}
1122
1123static int zd1201_set_scan(struct net_device *dev,
1124 struct iw_request_info *info, struct iw_point *srq, char *extra)
1125{
1126 /* We do everything in get_scan */
1127 return 0;
1128}
1129
1130static int zd1201_get_scan(struct net_device *dev,
1131 struct iw_request_info *info, struct iw_point *srq, char *extra)
1132{
1133 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1134 int err, i, j, enabled_save;
1135 struct iw_event iwe;
1136 char *cev = extra;
1137 char *end_buf = extra + IW_SCAN_MAX_DATA;
1138
1139 /* No scanning in AP mode */
1140 if (zd->ap)
1141 return -EOPNOTSUPP;
1142
1143 /* Scan doesn't seem to work if disabled */
1144 enabled_save = zd->mac_enabled;
1145 zd1201_enable(zd);
1146
1147 zd->rxdatas = 0;
1148 err = zd1201_docmd(zd, ZD1201_CMDCODE_INQUIRE,
1149 ZD1201_INQ_SCANRESULTS, 0, 0);
1150 if (err)
1151 return err;
1152
1153 wait_event_interruptible(zd->rxdataq, zd->rxdatas);
1154 if (!zd->rxlen)
1155 return -EIO;
1156
1157 if (le16_to_cpu(*(__le16*)&zd->rxdata[2]) != ZD1201_INQ_SCANRESULTS)
1158 return -EIO;
1159
1160 for(i=8; i<zd->rxlen; i+=62) {
1161 iwe.cmd = SIOCGIWAP;
1162 iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
1163 memcpy(iwe.u.ap_addr.sa_data, zd->rxdata+i+6, 6);
1164 cev = iwe_stream_add_event(cev, end_buf, &iwe, IW_EV_ADDR_LEN);
1165
1166 iwe.cmd = SIOCGIWESSID;
1167 iwe.u.data.length = zd->rxdata[i+16];
1168 iwe.u.data.flags = 1;
1169 cev = iwe_stream_add_point(cev, end_buf, &iwe, zd->rxdata+i+18);
1170
1171 iwe.cmd = SIOCGIWMODE;
1172 if (zd->rxdata[i+14]&0x01)
1173 iwe.u.mode = IW_MODE_MASTER;
1174 else
1175 iwe.u.mode = IW_MODE_ADHOC;
1176 cev = iwe_stream_add_event(cev, end_buf, &iwe, IW_EV_UINT_LEN);
1177
1178 iwe.cmd = SIOCGIWFREQ;
1179 iwe.u.freq.m = zd->rxdata[i+0];
1180 iwe.u.freq.e = 0;
1181 cev = iwe_stream_add_event(cev, end_buf, &iwe, IW_EV_FREQ_LEN);
1182
1183 iwe.cmd = SIOCGIWRATE;
1184 iwe.u.bitrate.fixed = 0;
1185 iwe.u.bitrate.disabled = 0;
1186 for (j=0; j<10; j++) if (zd->rxdata[i+50+j]) {
1187 iwe.u.bitrate.value = (zd->rxdata[i+50+j]&0x7f)*500000;
1188 cev=iwe_stream_add_event(cev, end_buf, &iwe,
1189 IW_EV_PARAM_LEN);
1190 }
1191
1192 iwe.cmd = SIOCGIWENCODE;
1193 iwe.u.data.length = 0;
1194 if (zd->rxdata[i+14]&0x10)
1195 iwe.u.data.flags = IW_ENCODE_ENABLED;
1196 else
1197 iwe.u.data.flags = IW_ENCODE_DISABLED;
1198 cev = iwe_stream_add_point(cev, end_buf, &iwe, NULL);
1199
1200 iwe.cmd = IWEVQUAL;
1201 iwe.u.qual.qual = zd->rxdata[i+4];
1202 iwe.u.qual.noise= zd->rxdata[i+2]/10-100;
1203 iwe.u.qual.level = (256+zd->rxdata[i+4]*100)/255-100;
1204 iwe.u.qual.updated = 7;
1205 cev = iwe_stream_add_event(cev, end_buf, &iwe, IW_EV_QUAL_LEN);
1206 }
1207
1208 if (!enabled_save)
1209 zd1201_disable(zd);
1210
1211 srq->length = cev - extra;
1212 srq->flags = 0;
1213
1214 return 0;
1215}
1216
1217static int zd1201_set_essid(struct net_device *dev,
1218 struct iw_request_info *info, struct iw_point *data, char *essid)
1219{
1220 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1221
1222 if (data->length > IW_ESSID_MAX_SIZE)
1223 return -EINVAL;
1224 if (data->length < 1)
1225 data->length = 1;
1226 zd->essidlen = data->length-1;
1227 memset(zd->essid, 0, IW_ESSID_MAX_SIZE+1);
1228 memcpy(zd->essid, essid, data->length);
1229 return zd1201_join(zd, zd->essid, zd->essidlen);
1230}
1231
1232static int zd1201_get_essid(struct net_device *dev,
1233 struct iw_request_info *info, struct iw_point *data, char *essid)
1234{
1235 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1236
1237 memcpy(essid, zd->essid, zd->essidlen);
1238 data->flags = 1;
1239 data->length = zd->essidlen;
1240
1241 return 0;
1242}
1243
1244static int zd1201_get_nick(struct net_device *dev, struct iw_request_info *info,
1245 struct iw_point *data, char *nick)
1246{
1247 strcpy(nick, "zd1201");
1248 data->flags = 1;
1249 data->length = strlen(nick);
1250 return 0;
1251}
1252
1253static int zd1201_set_rate(struct net_device *dev,
1254 struct iw_request_info *info, struct iw_param *rrq, char *extra)
1255{
1256 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1257 short rate;
1258 int err;
1259
1260 switch (rrq->value) {
1261 case 1000000:
1262 rate = ZD1201_RATEB1;
1263 break;
1264 case 2000000:
1265 rate = ZD1201_RATEB2;
1266 break;
1267 case 5500000:
1268 rate = ZD1201_RATEB5;
1269 break;
1270 case 11000000:
1271 default:
1272 rate = ZD1201_RATEB11;
1273 break;
1274 }
1275 if (!rrq->fixed) { /* Also enable all lower bitrates */
1276 rate |= rate-1;
1277 }
1278
1279 err = zd1201_setconfig16(zd, ZD1201_RID_TXRATECNTL, rate);
1280 if (err)
1281 return err;
1282
1283 return zd1201_mac_reset(zd);
1284}
1285
1286static int zd1201_get_rate(struct net_device *dev,
1287 struct iw_request_info *info, struct iw_param *rrq, char *extra)
1288{
1289 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1290 short rate;
1291 int err;
1292
1293 err = zd1201_getconfig16(zd, ZD1201_RID_CURRENTTXRATE, &rate);
1294 if (err)
1295 return err;
1296
1297 switch(rate) {
1298 case 1:
1299 rrq->value = 1000000;
1300 break;
1301 case 2:
1302 rrq->value = 2000000;
1303 break;
1304 case 5:
1305 rrq->value = 5500000;
1306 break;
1307 case 11:
1308 rrq->value = 11000000;
1309 break;
1310 default:
1311 rrq->value = 0;
1312 }
1313 rrq->fixed = 0;
1314 rrq->disabled = 0;
1315
1316 return 0;
1317}
1318
1319static int zd1201_set_rts(struct net_device *dev, struct iw_request_info *info,
1320 struct iw_param *rts, char *extra)
1321{
1322 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1323 int err;
1324 short val = rts->value;
1325
1326 if (rts->disabled || !rts->fixed)
1327 val = ZD1201_RTSMAX;
1328 if (val > ZD1201_RTSMAX)
1329 return -EINVAL;
1330 if (val < 0)
1331 return -EINVAL;
1332
1333 err = zd1201_setconfig16(zd, ZD1201_RID_CNFRTSTHRESHOLD, val);
1334 if (err)
1335 return err;
1336 return zd1201_mac_reset(zd);
1337}
1338
1339static int zd1201_get_rts(struct net_device *dev, struct iw_request_info *info,
1340 struct iw_param *rts, char *extra)
1341{
1342 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1343 short rtst;
1344 int err;
1345
1346 err = zd1201_getconfig16(zd, ZD1201_RID_CNFRTSTHRESHOLD, &rtst);
1347 if (err)
1348 return err;
1349 rts->value = rtst;
1350 rts->disabled = (rts->value == ZD1201_RTSMAX);
1351 rts->fixed = 1;
1352
1353 return 0;
1354}
1355
1356static int zd1201_set_frag(struct net_device *dev, struct iw_request_info *info,
1357 struct iw_param *frag, char *extra)
1358{
1359 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1360 int err;
1361 short val = frag->value;
1362
1363 if (frag->disabled || !frag->fixed)
1364 val = ZD1201_FRAGMAX;
1365 if (val > ZD1201_FRAGMAX)
1366 return -EINVAL;
1367 if (val < ZD1201_FRAGMIN)
1368 return -EINVAL;
1369 if (val & 1)
1370 return -EINVAL;
1371 err = zd1201_setconfig16(zd, ZD1201_RID_CNFFRAGTHRESHOLD, val);
1372 if (err)
1373 return err;
1374 return zd1201_mac_reset(zd);
1375}
1376
1377static int zd1201_get_frag(struct net_device *dev, struct iw_request_info *info,
1378 struct iw_param *frag, char *extra)
1379{
1380 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1381 short fragt;
1382 int err;
1383
1384 err = zd1201_getconfig16(zd, ZD1201_RID_CNFFRAGTHRESHOLD, &fragt);
1385 if (err)
1386 return err;
1387 frag->value = fragt;
1388 frag->disabled = (frag->value == ZD1201_FRAGMAX);
1389 frag->fixed = 1;
1390
1391 return 0;
1392}
1393
1394static int zd1201_set_retry(struct net_device *dev,
1395 struct iw_request_info *info, struct iw_param *rrq, char *extra)
1396{
1397 return 0;
1398}
1399
1400static int zd1201_get_retry(struct net_device *dev,
1401 struct iw_request_info *info, struct iw_param *rrq, char *extra)
1402{
1403 return 0;
1404}
1405
1406static int zd1201_set_encode(struct net_device *dev,
1407 struct iw_request_info *info, struct iw_point *erq, char *key)
1408{
1409 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1410 short i;
1411 int err, rid;
1412
1413 if (erq->length > ZD1201_MAXKEYLEN)
1414 return -EINVAL;
1415
1416 i = (erq->flags & IW_ENCODE_INDEX)-1;
1417 if (i == -1) {
1418 err = zd1201_getconfig16(zd,ZD1201_RID_CNFDEFAULTKEYID,&i);
1419 if (err)
1420 return err;
1421 } else {
1422 err = zd1201_setconfig16(zd, ZD1201_RID_CNFDEFAULTKEYID, i);
1423 if (err)
1424 return err;
1425 }
1426
1427 if (i < 0 || i >= ZD1201_NUMKEYS)
1428 return -EINVAL;
1429
1430 rid = ZD1201_RID_CNFDEFAULTKEY0 + i;
1431 err = zd1201_setconfig(zd, rid, key, erq->length, 1);
1432 if (err)
1433 return err;
1434 zd->encode_keylen[i] = erq->length;
1435 memcpy(zd->encode_keys[i], key, erq->length);
1436
1437 i=0;
1438 if (!(erq->flags & IW_ENCODE_DISABLED & IW_ENCODE_MODE)) {
1439 i |= 0x01;
1440 zd->encode_enabled = 1;
1441 } else
1442 zd->encode_enabled = 0;
1443 if (erq->flags & IW_ENCODE_RESTRICTED & IW_ENCODE_MODE) {
1444 i |= 0x02;
1445 zd->encode_restricted = 1;
1446 } else
1447 zd->encode_restricted = 0;
1448 err = zd1201_setconfig16(zd, ZD1201_RID_CNFWEBFLAGS, i);
1449 if (err)
1450 return err;
1451
1452 if (zd->encode_enabled)
1453 i = ZD1201_CNFAUTHENTICATION_SHAREDKEY;
1454 else
1455 i = ZD1201_CNFAUTHENTICATION_OPENSYSTEM;
1456 err = zd1201_setconfig16(zd, ZD1201_RID_CNFAUTHENTICATION, i);
1457 if (err)
1458 return err;
1459
1460 return zd1201_mac_reset(zd);
1461}
1462
1463static int zd1201_get_encode(struct net_device *dev,
1464 struct iw_request_info *info, struct iw_point *erq, char *key)
1465{
1466 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1467 short i;
1468 int err;
1469
1470 if (zd->encode_enabled)
1471 erq->flags = IW_ENCODE_ENABLED;
1472 else
1473 erq->flags = IW_ENCODE_DISABLED;
1474 if (zd->encode_restricted)
1475 erq->flags |= IW_ENCODE_RESTRICTED;
1476 else
1477 erq->flags |= IW_ENCODE_OPEN;
1478
1479 i = (erq->flags & IW_ENCODE_INDEX) -1;
1480 if (i == -1) {
1481 err = zd1201_getconfig16(zd, ZD1201_RID_CNFDEFAULTKEYID, &i);
1482 if (err)
1483 return err;
1484 }
1485 if (i<0 || i>= ZD1201_NUMKEYS)
1486 return -EINVAL;
1487
1488 erq->flags |= i+1;
1489
1490 erq->length = zd->encode_keylen[i];
1491 memcpy(key, zd->encode_keys[i], erq->length);
1492
1493 return 0;
1494}
1495
1496static int zd1201_set_power(struct net_device *dev,
1497 struct iw_request_info *info, struct iw_param *vwrq, char *extra)
1498{
1499 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1500 short enabled, duration, level;
1501 int err;
1502
1503 enabled = vwrq->disabled ? 0 : 1;
1504 if (enabled) {
1505 if (vwrq->flags & IW_POWER_PERIOD) {
1506 duration = vwrq->value;
1507 err = zd1201_setconfig16(zd,
1508 ZD1201_RID_CNFMAXSLEEPDURATION, duration);
1509 if (err)
1510 return err;
1511 goto out;
1512 }
1513 if (vwrq->flags & IW_POWER_TIMEOUT) {
1514 err = zd1201_getconfig16(zd,
1515 ZD1201_RID_CNFMAXSLEEPDURATION, &duration);
1516 if (err)
1517 return err;
1518 level = vwrq->value * 4 / duration;
1519 if (level > 4)
1520 level = 4;
1521 if (level < 0)
1522 level = 0;
1523 err = zd1201_setconfig16(zd, ZD1201_RID_CNFPMEPS,
1524 level);
1525 if (err)
1526 return err;
1527 goto out;
1528 }
1529 return -EINVAL;
1530 }
1531out:
1532 err = zd1201_setconfig16(zd, ZD1201_RID_CNFPMENABLED, enabled);
1533 if (err)
1534 return err;
1535
1536 return 0;
1537}
1538
1539static int zd1201_get_power(struct net_device *dev,
1540 struct iw_request_info *info, struct iw_param *vwrq, char *extra)
1541{
1542 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1543 short enabled, level, duration;
1544 int err;
1545
1546 err = zd1201_getconfig16(zd, ZD1201_RID_CNFPMENABLED, &enabled);
1547 if (err)
1548 return err;
1549 err = zd1201_getconfig16(zd, ZD1201_RID_CNFPMEPS, &level);
1550 if (err)
1551 return err;
1552 err = zd1201_getconfig16(zd, ZD1201_RID_CNFMAXSLEEPDURATION, &duration);
1553 if (err)
1554 return err;
1555 vwrq->disabled = enabled ? 0 : 1;
1556 if (vwrq->flags & IW_POWER_TYPE) {
1557 if (vwrq->flags & IW_POWER_PERIOD) {
1558 vwrq->value = duration;
1559 vwrq->flags = IW_POWER_PERIOD;
1560 } else {
1561 vwrq->value = duration * level / 4;
1562 vwrq->flags = IW_POWER_TIMEOUT;
1563 }
1564 }
1565 if (vwrq->flags & IW_POWER_MODE) {
1566 if (enabled && level)
1567 vwrq->flags = IW_POWER_UNICAST_R;
1568 else
1569 vwrq->flags = IW_POWER_ALL_R;
1570 }
1571
1572 return 0;
1573}
1574
1575
1576static const iw_handler zd1201_iw_handler[] =
1577{
1578 (iw_handler) zd1201_config_commit, /* SIOCSIWCOMMIT */
1579 (iw_handler) zd1201_get_name, /* SIOCGIWNAME */
1580 (iw_handler) NULL, /* SIOCSIWNWID */
1581 (iw_handler) NULL, /* SIOCGIWNWID */
1582 (iw_handler) zd1201_set_freq, /* SIOCSIWFREQ */
1583 (iw_handler) zd1201_get_freq, /* SIOCGIWFREQ */
1584 (iw_handler) zd1201_set_mode, /* SIOCSIWMODE */
1585 (iw_handler) zd1201_get_mode, /* SIOCGIWMODE */
1586 (iw_handler) NULL, /* SIOCSIWSENS */
1587 (iw_handler) NULL, /* SIOCGIWSENS */
1588 (iw_handler) NULL, /* SIOCSIWRANGE */
1589 (iw_handler) zd1201_get_range, /* SIOCGIWRANGE */
1590 (iw_handler) NULL, /* SIOCSIWPRIV */
1591 (iw_handler) NULL, /* SIOCGIWPRIV */
1592 (iw_handler) NULL, /* SIOCSIWSTATS */
1593 (iw_handler) NULL, /* SIOCGIWSTATS */
1594 (iw_handler) NULL, /* SIOCSIWSPY */
1595 (iw_handler) NULL, /* SIOCGIWSPY */
1596 (iw_handler) NULL, /* -- hole -- */
1597 (iw_handler) NULL, /* -- hole -- */
1598 (iw_handler) NULL/*zd1201_set_wap*/, /* SIOCSIWAP */
1599 (iw_handler) zd1201_get_wap, /* SIOCGIWAP */
1600 (iw_handler) NULL, /* -- hole -- */
1601 (iw_handler) NULL, /* SIOCGIWAPLIST */
1602 (iw_handler) zd1201_set_scan, /* SIOCSIWSCAN */
1603 (iw_handler) zd1201_get_scan, /* SIOCGIWSCAN */
1604 (iw_handler) zd1201_set_essid, /* SIOCSIWESSID */
1605 (iw_handler) zd1201_get_essid, /* SIOCGIWESSID */
1606 (iw_handler) NULL, /* SIOCSIWNICKN */
1607 (iw_handler) zd1201_get_nick, /* SIOCGIWNICKN */
1608 (iw_handler) NULL, /* -- hole -- */
1609 (iw_handler) NULL, /* -- hole -- */
1610 (iw_handler) zd1201_set_rate, /* SIOCSIWRATE */
1611 (iw_handler) zd1201_get_rate, /* SIOCGIWRATE */
1612 (iw_handler) zd1201_set_rts, /* SIOCSIWRTS */
1613 (iw_handler) zd1201_get_rts, /* SIOCGIWRTS */
1614 (iw_handler) zd1201_set_frag, /* SIOCSIWFRAG */
1615 (iw_handler) zd1201_get_frag, /* SIOCGIWFRAG */
1616 (iw_handler) NULL, /* SIOCSIWTXPOW */
1617 (iw_handler) NULL, /* SIOCGIWTXPOW */
1618 (iw_handler) zd1201_set_retry, /* SIOCSIWRETRY */
1619 (iw_handler) zd1201_get_retry, /* SIOCGIWRETRY */
1620 (iw_handler) zd1201_set_encode, /* SIOCSIWENCODE */
1621 (iw_handler) zd1201_get_encode, /* SIOCGIWENCODE */
1622 (iw_handler) zd1201_set_power, /* SIOCSIWPOWER */
1623 (iw_handler) zd1201_get_power, /* SIOCGIWPOWER */
1624};
1625
1626static int zd1201_set_hostauth(struct net_device *dev,
1627 struct iw_request_info *info, struct iw_param *rrq, char *extra)
1628{
1629 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1630 int err;
1631
1632 if (!zd->ap)
1633 return -EOPNOTSUPP;
1634
1635 err = zd1201_setconfig16(zd, ZD1201_RID_CNFHOSTAUTH, rrq->value);
1636 if (err)
1637 return err;
1638 return 0;
1639}
1640
1641static int zd1201_get_hostauth(struct net_device *dev,
1642 struct iw_request_info *info, struct iw_param *rrq, char *extra)
1643{
1644 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1645 short hostauth;
1646 int err;
1647
1648 if (!zd->ap)
1649 return -EOPNOTSUPP;
1650
1651 err = zd1201_getconfig16(zd, ZD1201_RID_CNFHOSTAUTH, &hostauth);
1652 if (err)
1653 return err;
1654 rrq->value = hostauth;
1655 rrq->fixed = 1;
1656
1657 return 0;
1658}
1659
1660static int zd1201_auth_sta(struct net_device *dev,
1661 struct iw_request_info *info, struct sockaddr *sta, char *extra)
1662{
1663 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1664 unsigned char buffer[10];
1665
1666 if (!zd->ap)
1667 return -EOPNOTSUPP;
1668
1669 memcpy(buffer, sta->sa_data, ETH_ALEN);
1670 *(short*)(buffer+6) = 0; /* 0==success, 1==failure */
1671 *(short*)(buffer+8) = 0;
1672
1673 return zd1201_setconfig(zd, ZD1201_RID_AUTHENTICATESTA, buffer, 10, 1);
1674}
1675
1676static int zd1201_set_maxassoc(struct net_device *dev,
1677 struct iw_request_info *info, struct iw_param *rrq, char *extra)
1678{
1679 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1680 int err;
1681
1682 if (!zd->ap)
1683 return -EOPNOTSUPP;
1684
1685 err = zd1201_setconfig16(zd, ZD1201_RID_CNFMAXASSOCSTATIONS, rrq->value);
1686 if (err)
1687 return err;
1688 return 0;
1689}
1690
1691static int zd1201_get_maxassoc(struct net_device *dev,
1692 struct iw_request_info *info, struct iw_param *rrq, char *extra)
1693{
1694 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1695 short maxassoc;
1696 int err;
1697
1698 if (!zd->ap)
1699 return -EOPNOTSUPP;
1700
1701 err = zd1201_getconfig16(zd, ZD1201_RID_CNFMAXASSOCSTATIONS, &maxassoc);
1702 if (err)
1703 return err;
1704 rrq->value = maxassoc;
1705 rrq->fixed = 1;
1706
1707 return 0;
1708}
1709
1710static const iw_handler zd1201_private_handler[] = {
1711 (iw_handler) zd1201_set_hostauth, /* ZD1201SIWHOSTAUTH */
1712 (iw_handler) zd1201_get_hostauth, /* ZD1201GIWHOSTAUTH */
1713 (iw_handler) zd1201_auth_sta, /* ZD1201SIWAUTHSTA */
1714 (iw_handler) NULL, /* nothing to get */
1715 (iw_handler) zd1201_set_maxassoc, /* ZD1201SIMAXASSOC */
1716 (iw_handler) zd1201_get_maxassoc, /* ZD1201GIMAXASSOC */
1717};
1718
1719static const struct iw_priv_args zd1201_private_args[] = {
1720 { ZD1201SIWHOSTAUTH, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
1721 IW_PRIV_TYPE_NONE, "sethostauth" },
1722 { ZD1201GIWHOSTAUTH, IW_PRIV_TYPE_NONE,
1723 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "gethostauth" },
52950ed4 1724 { ZD1201SIWAUTHSTA, IW_PRIV_TYPE_ADDR | IW_PRIV_SIZE_FIXED | 1,
1da177e4
LT		 1725 IW_PRIV_TYPE_NONE, "authstation" },
1726 { ZD1201SIWMAXASSOC, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
1727 IW_PRIV_TYPE_NONE, "setmaxassoc" },
1728 { ZD1201GIWMAXASSOC, IW_PRIV_TYPE_NONE,
1729 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getmaxassoc" },
1730};
1731
1732static const struct iw_handler_def zd1201_iw_handlers = {
52950ed4
TK		 1733 .num_standard = ARRAY_SIZE(zd1201_iw_handler),
1734 .num_private = ARRAY_SIZE(zd1201_private_handler),
1735 .num_private_args = ARRAY_SIZE(zd1201_private_args),
1da177e4
LT		 1736 .standard = (iw_handler *)zd1201_iw_handler,
1737 .private = (iw_handler *)zd1201_private_handler,
1738 .private_args = (struct iw_priv_args *) zd1201_private_args,
00736025 1739 .get_wireless_stats = zd1201_get_wireless_stats,
1da177e4
LT		 1740};
1741
2e0a6b8c
AB		 1742static int zd1201_probe(struct usb_interface *interface,
1743 const struct usb_device_id *id)
1da177e4
LT		 1744{
1745 struct zd1201 *zd;
1746 struct usb_device *usb;
1747 int i, err;
1748 short porttype;
1749 char buf[IW_ESSID_MAX_SIZE+2];
1750
1751 usb = interface_to_usbdev(interface);
1752
80b6ca48
ES		 1753 zd = kzalloc(sizeof(struct zd1201), GFP_KERNEL);
1754 if (!zd)
1da177e4 1755 return -ENOMEM;
1da177e4
LT		 1756 zd->ap = ap;
1757 zd->usb = usb;
1758 zd->removed = 0;
1759 init_waitqueue_head(&zd->rxdataq);
1760 INIT_HLIST_HEAD(&zd->fraglist);
1761
1762 err = zd1201_fw_upload(usb, zd->ap);
1763 if (err) {
1764 dev_err(&usb->dev, "zd1201 firmware upload failed: %d\n", err);
1765 goto err_zd;
1766 }
1767
1768 zd->endp_in = 1;
1769 zd->endp_out = 1;
1770 zd->endp_out2 = 2;
1771 zd->rx_urb = usb_alloc_urb(0, GFP_KERNEL);
1772 zd->tx_urb = usb_alloc_urb(0, GFP_KERNEL);
1773 if (!zd->rx_urb || !zd->tx_urb)
1774 goto err_zd;
1775
1776 for(i = 0; i<100; i++)
1777 udelay(1000);
1778
1779 err = zd1201_drvr_start(zd);
1780 if (err)
1781 goto err_zd;
1782
1783 err = zd1201_setconfig16(zd, ZD1201_RID_CNFMAXDATALEN, 2312);
1784 if (err)
1785 goto err_start;
1786
1787 err = zd1201_setconfig16(zd, ZD1201_RID_TXRATECNTL,
1788 ZD1201_RATEB1 | ZD1201_RATEB2 | ZD1201_RATEB5 | ZD1201_RATEB11);
1789 if (err)
1790 goto err_start;
1791
1792 zd->dev = alloc_etherdev(0);
1793 if (!zd->dev)
1794 goto err_start;
1795
1796 zd->dev->priv = zd;
1797 zd->dev->open = zd1201_net_open;
1798 zd->dev->stop = zd1201_net_stop;
1799 zd->dev->get_stats = zd1201_get_stats;
1da177e4
LT		 1800 zd->dev->wireless_handlers =
1801 (struct iw_handler_def *)&zd1201_iw_handlers;
1802 zd->dev->hard_start_xmit = zd1201_hard_start_xmit;
1803 zd->dev->watchdog_timeo = ZD1201_TX_TIMEOUT;
1804 zd->dev->tx_timeout = zd1201_tx_timeout;
1805 zd->dev->set_multicast_list = zd1201_set_multicast;
1806 zd->dev->set_mac_address = zd1201_set_mac_address;
1807 strcpy(zd->dev->name, "wlan%d");
1808
1809 err = zd1201_getconfig(zd, ZD1201_RID_CNFOWNMACADDR,
1810 zd->dev->dev_addr, zd->dev->addr_len);
1811 if (err)
1812 goto err_net;
1813
1814 /* Set wildcard essid to match zd->essid */
1815 *(__le16 *)buf = cpu_to_le16(0);
1816 err = zd1201_setconfig(zd, ZD1201_RID_CNFDESIREDSSID, buf,
1817 IW_ESSID_MAX_SIZE+2, 1);
1818 if (err)
1819 goto err_net;
1820
1821 if (zd->ap)
1822 porttype = ZD1201_PORTTYPE_AP;
1823 else
1824 porttype = ZD1201_PORTTYPE_BSS;
1825 err = zd1201_setconfig16(zd, ZD1201_RID_CNFPORTTYPE, porttype);
1826 if (err)
1827 goto err_net;
1828
a083dec0
NL		 1829 SET_NETDEV_DEV(zd->dev, &usb->dev);
1830
1da177e4
LT		 1831 err = register_netdev(zd->dev);
1832 if (err)
1833 goto err_net;
1834 dev_info(&usb->dev, "%s: ZD1201 USB Wireless interface\n",
1835 zd->dev->name);
1836
1837 usb_set_intfdata(interface, zd);
1838 return 0;
1839
1840err_net:
1841 free_netdev(zd->dev);
1842err_start:
1843 /* Leave the device in reset state */
1844 zd1201_docmd(zd, ZD1201_CMDCODE_INIT, 0, 0, 0);
1845err_zd:
1846 if (zd->tx_urb)
1847 usb_free_urb(zd->tx_urb);
1848 if (zd->rx_urb)
1849 usb_free_urb(zd->rx_urb);
1850 kfree(zd);
1851 return err;
1852}
1853
2e0a6b8c 1854static void zd1201_disconnect(struct usb_interface *interface)
1da177e4
LT		 1855{
1856 struct zd1201 *zd=(struct zd1201 *)usb_get_intfdata(interface);
1857 struct hlist_node *node, *node2;
1858 struct zd1201_frag *frag;
1859
1860 if (!zd)
1861 return;
1862 usb_set_intfdata(interface, NULL);
1863 if (zd->dev) {
1864 unregister_netdev(zd->dev);
1865 free_netdev(zd->dev);
1866 }
1867
1868 hlist_for_each_entry_safe(frag, node, node2, &zd->fraglist, fnode) {
1869 hlist_del_init(&frag->fnode);
1870 kfree_skb(frag->skb);
1871 kfree(frag);
1872 }
1873
1874 if (zd->tx_urb) {
1875 usb_kill_urb(zd->tx_urb);
1876 usb_free_urb(zd->tx_urb);
1877 }
1878 if (zd->rx_urb) {
1879 usb_kill_urb(zd->rx_urb);
1880 usb_free_urb(zd->rx_urb);
1881 }
1882 kfree(zd);
1883}
1884
a3c900bb
CL		 1885#ifdef CONFIG_PM
1886
1887static int zd1201_suspend(struct usb_interface *interface,
1888 pm_message_t message)
1889{
1890 struct zd1201 *zd = usb_get_intfdata(interface);
1891
1892 netif_device_detach(zd->dev);
1893
1894 zd->was_enabled = zd->mac_enabled;
1895
1896 if (zd->was_enabled)
1897 return zd1201_disable(zd);
1898 else
1899 return 0;
1900}
1901
1902static int zd1201_resume(struct usb_interface *interface)
1903{
1904 struct zd1201 *zd = usb_get_intfdata(interface);
1905
f58f97fa
CL		 1906 if (!zd || !zd->dev)
1907 return -ENODEV;
1908
a3c900bb
CL		 1909 netif_device_attach(zd->dev);
1910
1911 if (zd->was_enabled)
1912 return zd1201_enable(zd);
1913 else
1914 return 0;
1915}
1916
1917#else
1918
1919#define zd1201_suspend NULL
1920#define zd1201_resume NULL
1921
1922#endif
1923
2e0a6b8c 1924static struct usb_driver zd1201_usb = {
1da177e4
LT		 1925 .name = "zd1201",
1926 .probe = zd1201_probe,
1927 .disconnect = zd1201_disconnect,
1928 .id_table = zd1201_table,
a3c900bb
CL		 1929 .suspend = zd1201_suspend,
1930 .resume = zd1201_resume,
1da177e4
LT		 1931};
1932
1933static int __init zd1201_init(void)
1934{
1935 return usb_register(&zd1201_usb);
1936}
1937
1938static void __exit zd1201_cleanup(void)
1939{
1940 usb_deregister(&zd1201_usb);
1941}
1942
1943module_init(zd1201_init);
1944module_exit(zd1201_cleanup);
Linux 6.x block layer and io_uring tree(s)