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arch: Remove unnecessary inclusions of asm/semaphore.h
[linux-2.6/mini2440.git] / drivers / net / wireless / zd1201.c
blobd5c0c66188cad3d146e32e3b0c6ccf0012e3066a
1 /*
2 * Driver for ZyDAS zd1201 based wireless USB devices.
3 *
4 * Copyright (c) 2004, 2005 Jeroen Vreeken (pe1rxq@amsat.org)
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * version 2 as published by the Free Software Foundation.
9 *
10 * Parts of this driver have been derived from a wlan-ng version
11 * modified by ZyDAS. They also made documentation available, thanks!
12 * Copyright (C) 1999 AbsoluteValue Systems, Inc. All Rights Reserved.
13 */
14
15 #include <linux/module.h>
16 #include <linux/usb.h>
17 #include <linux/netdevice.h>
18 #include <linux/etherdevice.h>
19 #include <linux/wireless.h>
20 #include <net/iw_handler.h>
21 #include <linux/string.h>
22 #include <linux/if_arp.h>
23 #include <linux/firmware.h>
24 #include <net/ieee80211.h>
25 #include "zd1201.h"
26
27 static struct usb_device_id zd1201_table[] = {
28 {USB_DEVICE(0x0586, 0x3400)}, /* Peabird Wireless USB Adapter */
29 {USB_DEVICE(0x0ace, 0x1201)}, /* ZyDAS ZD1201 Wireless USB Adapter */
30 {USB_DEVICE(0x050d, 0x6051)}, /* Belkin F5D6051 usb adapter */
31 {USB_DEVICE(0x0db0, 0x6823)}, /* MSI UB11B usb adapter */
32 {USB_DEVICE(0x1044, 0x8005)}, /* GIGABYTE GN-WLBZ201 usb adapter */
33 {}
34 };
35
36 static int ap; /* Are we an AP or a normal station? */
37
38 #define ZD1201_VERSION "0.15"
39
40 MODULE_AUTHOR("Jeroen Vreeken <pe1rxq@amsat.org>");
41 MODULE_DESCRIPTION("Driver for ZyDAS ZD1201 based USB Wireless adapters");
42 MODULE_VERSION(ZD1201_VERSION);
43 MODULE_LICENSE("GPL");
44 module_param(ap, int, 0);
45 MODULE_PARM_DESC(ap, "If non-zero Access Point firmware will be loaded");
46 MODULE_DEVICE_TABLE(usb, zd1201_table);
47
48
49 static int zd1201_fw_upload(struct usb_device *dev, int apfw)
50 {
51 const struct firmware *fw_entry;
52 char *data;
53 unsigned long len;
54 int err;
55 unsigned char ret;
56 char *buf;
57 char *fwfile;
58
59 if (apfw)
60 fwfile = "zd1201-ap.fw";
61 else
62 fwfile = "zd1201.fw";
63
64 err = request_firmware(&fw_entry, fwfile, &dev->dev);
65 if (err) {
66 dev_err(&dev->dev, "Failed to load %s firmware file!\n", fwfile);
67 dev_err(&dev->dev, "Make sure the hotplug firmware loader is installed.\n");
68 dev_err(&dev->dev, "Goto http://linux-lc100020.sourceforge.net for more info.\n");
69 return err;
70 }
71
72 data = fw_entry->data;
73 len = fw_entry->size;
74
75 buf = kmalloc(1024, GFP_ATOMIC);
76 if (!buf)
77 goto exit;
78
79 while (len > 0) {
80 int translen = (len > 1024) ? 1024 : len;
81 memcpy(buf, data, translen);
82
83 err = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), 0,
84 USB_DIR_OUT | 0x40, 0, 0, buf, translen,
85 ZD1201_FW_TIMEOUT);
86 if (err < 0)
87 goto exit;
88
89 len -= translen;
90 data += translen;
91 }
92
93 err = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), 0x2,
94 USB_DIR_OUT | 0x40, 0, 0, NULL, 0, ZD1201_FW_TIMEOUT);
95 if (err < 0)
96 goto exit;
97
98 err = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), 0x4,
99 USB_DIR_IN | 0x40, 0,0, &ret, sizeof(ret), ZD1201_FW_TIMEOUT);
100 if (err < 0)
101 goto exit;
102
103 if (ret & 0x80) {
104 err = -EIO;
105 goto exit;
106 }
107
108 err = 0;
109 exit:
110 kfree(buf);
111 release_firmware(fw_entry);
112 return err;
113 }
114
115 static void zd1201_usbfree(struct urb *urb)
116 {
117 struct zd1201 *zd = urb->context;
118
119 switch(urb->status) {
120 case -EILSEQ:
121 case -ENODEV:
122 case -ETIME:
123 case -ENOENT:
124 case -EPIPE:
125 case -EOVERFLOW:
126 case -ESHUTDOWN:
127 dev_warn(&zd->usb->dev, "%s: urb failed: %d\n",
128 zd->dev->name, urb->status);
129 }
130
131 kfree(urb->transfer_buffer);
132 usb_free_urb(urb);
133 return;
134 }
135
136 /* cmdreq message:
137 u32 type
138 u16 cmd
139 u16 parm0
140 u16 parm1
141 u16 parm2
142 u8 pad[4]
143
144 total: 4 + 2 + 2 + 2 + 2 + 4 = 16
145 */
146 static int zd1201_docmd(struct zd1201 *zd, int cmd, int parm0,
147 int parm1, int parm2)
148 {
149 unsigned char *command;
150 int ret;
151 struct urb *urb;
152
153 command = kmalloc(16, GFP_ATOMIC);
154 if (!command)
155 return -ENOMEM;
156
157 *((__le32*)command) = cpu_to_le32(ZD1201_USB_CMDREQ);
158 *((__le16*)&command[4]) = cpu_to_le16(cmd);
159 *((__le16*)&command[6]) = cpu_to_le16(parm0);
160 *((__le16*)&command[8]) = cpu_to_le16(parm1);
161 *((__le16*)&command[10])= cpu_to_le16(parm2);
162
163 urb = usb_alloc_urb(0, GFP_ATOMIC);
164 if (!urb) {
165 kfree(command);
166 return -ENOMEM;
167 }
168 usb_fill_bulk_urb(urb, zd->usb, usb_sndbulkpipe(zd->usb, zd->endp_out2),
169 command, 16, zd1201_usbfree, zd);
170 ret = usb_submit_urb(urb, GFP_ATOMIC);
171 if (ret) {
172 kfree(command);
173 usb_free_urb(urb);
174 }
175
176 return ret;
177 }
178
179 /* Callback after sending out a packet */
180 static void zd1201_usbtx(struct urb *urb)
181 {
182 struct zd1201 *zd = urb->context;
183 netif_wake_queue(zd->dev);
184 return;
185 }
186
187 /* Incoming data */
188 static void zd1201_usbrx(struct urb *urb)
189 {
190 struct zd1201 *zd = urb->context;
191 int free = 0;
192 unsigned char *data = urb->transfer_buffer;
193 struct sk_buff *skb;
194 unsigned char type;
195
196 if (!zd)
197 return;
198
199 switch(urb->status) {
200 case -EILSEQ:
201 case -ENODEV:
202 case -ETIME:
203 case -ENOENT:
204 case -EPIPE:
205 case -EOVERFLOW:
206 case -ESHUTDOWN:
207 dev_warn(&zd->usb->dev, "%s: rx urb failed: %d\n",
208 zd->dev->name, urb->status);
209 free = 1;
210 goto exit;
211 }
212
213 if (urb->status != 0 || urb->actual_length == 0)
214 goto resubmit;
215
216 type = data[0];
217 if (type == ZD1201_PACKET_EVENTSTAT || type == ZD1201_PACKET_RESOURCE) {
218 memcpy(zd->rxdata, data, urb->actual_length);
219 zd->rxlen = urb->actual_length;
220 zd->rxdatas = 1;
221 wake_up(&zd->rxdataq);
222 }
223 /* Info frame */
224 if (type == ZD1201_PACKET_INQUIRE) {
225 int i = 0;
226 unsigned short infotype, framelen, copylen;
227 framelen = le16_to_cpu(*(__le16*)&data[4]);
228 infotype = le16_to_cpu(*(__le16*)&data[6]);
229
230 if (infotype == ZD1201_INF_LINKSTATUS) {
231 short linkstatus;
232
233 linkstatus = le16_to_cpu(*(__le16*)&data[8]);
234 switch(linkstatus) {
235 case 1:
236 netif_carrier_on(zd->dev);
237 break;
238 case 2:
239 netif_carrier_off(zd->dev);
240 break;
241 case 3:
242 netif_carrier_off(zd->dev);
243 break;
244 case 4:
245 netif_carrier_on(zd->dev);
246 break;
247 default:
248 netif_carrier_off(zd->dev);
249 }
250 goto resubmit;
251 }
252 if (infotype == ZD1201_INF_ASSOCSTATUS) {
253 short status = le16_to_cpu(*(__le16*)(data+8));
254 int event;
255 union iwreq_data wrqu;
256
257 switch (status) {
258 case ZD1201_ASSOCSTATUS_STAASSOC:
259 case ZD1201_ASSOCSTATUS_REASSOC:
260 event = IWEVREGISTERED;
261 break;
262 case ZD1201_ASSOCSTATUS_DISASSOC:
263 case ZD1201_ASSOCSTATUS_ASSOCFAIL:
264 case ZD1201_ASSOCSTATUS_AUTHFAIL:
265 default:
266 event = IWEVEXPIRED;
267 }
268 memcpy(wrqu.addr.sa_data, data+10, ETH_ALEN);
269 wrqu.addr.sa_family = ARPHRD_ETHER;
270
271 /* Send event to user space */
272 wireless_send_event(zd->dev, event, &wrqu, NULL);
273
274 goto resubmit;
275 }
276 if (infotype == ZD1201_INF_AUTHREQ) {
277 union iwreq_data wrqu;
278
279 memcpy(wrqu.addr.sa_data, data+8, ETH_ALEN);
280 wrqu.addr.sa_family = ARPHRD_ETHER;
281 /* There isn't a event that trully fits this request.
282 We assume that userspace will be smart enough to
283 see a new station being expired and sends back a
284 authstation ioctl to authorize it. */
285 wireless_send_event(zd->dev, IWEVEXPIRED, &wrqu, NULL);
286 goto resubmit;
287 }
288 /* Other infotypes are handled outside this handler */
289 zd->rxlen = 0;
290 while (i < urb->actual_length) {
291 copylen = le16_to_cpu(*(__le16*)&data[i+2]);
292 /* Sanity check, sometimes we get junk */
293 if (copylen+zd->rxlen > sizeof(zd->rxdata))
294 break;
295 memcpy(zd->rxdata+zd->rxlen, data+i+4, copylen);
296 zd->rxlen += copylen;
297 i += 64;
298 }
299 if (i >= urb->actual_length) {
300 zd->rxdatas = 1;
301 wake_up(&zd->rxdataq);
302 }
303 goto resubmit;
304 }
305 /* Actual data */
306 if (data[urb->actual_length-1] == ZD1201_PACKET_RXDATA) {
307 int datalen = urb->actual_length-1;
308 unsigned short len, fc, seq;
309 struct hlist_node *node;
310
311 len = ntohs(*(__be16 *)&data[datalen-2]);
312 if (len>datalen)
313 len=datalen;
314 fc = le16_to_cpu(*(__le16 *)&data[datalen-16]);
315 seq = le16_to_cpu(*(__le16 *)&data[datalen-24]);
316
317 if (zd->monitor) {
318 if (datalen < 24)
319 goto resubmit;
320 if (!(skb = dev_alloc_skb(datalen+24)))
321 goto resubmit;
322
323 memcpy(skb_put(skb, 2), &data[datalen-16], 2);
324 memcpy(skb_put(skb, 2), &data[datalen-2], 2);
325 memcpy(skb_put(skb, 6), &data[datalen-14], 6);
326 memcpy(skb_put(skb, 6), &data[datalen-22], 6);
327 memcpy(skb_put(skb, 6), &data[datalen-8], 6);
328 memcpy(skb_put(skb, 2), &data[datalen-24], 2);
329 memcpy(skb_put(skb, len), data, len);
330 skb->protocol = eth_type_trans(skb, zd->dev);
331 skb->dev->last_rx = jiffies;
332 zd->stats.rx_packets++;
333 zd->stats.rx_bytes += skb->len;
334 netif_rx(skb);
335 goto resubmit;
336 }
337
338 if ((seq & IEEE80211_SCTL_FRAG) ||
339 (fc & IEEE80211_FCTL_MOREFRAGS)) {
340 struct zd1201_frag *frag = NULL;
341 char *ptr;
342
343 if (datalen<14)
344 goto resubmit;
345 if ((seq & IEEE80211_SCTL_FRAG) == 0) {
346 frag = kmalloc(sizeof(*frag), GFP_ATOMIC);
347 if (!frag)
348 goto resubmit;
349 skb = dev_alloc_skb(IEEE80211_DATA_LEN +14+2);
350 if (!skb) {
351 kfree(frag);
352 goto resubmit;
353 }
354 frag->skb = skb;
355 frag->seq = seq & IEEE80211_SCTL_SEQ;
356 skb_reserve(skb, 2);
357 memcpy(skb_put(skb, 12), &data[datalen-14], 12);
358 memcpy(skb_put(skb, 2), &data[6], 2);
359 memcpy(skb_put(skb, len), data+8, len);
360 hlist_add_head(&frag->fnode, &zd->fraglist);
361 goto resubmit;
362 }
363 hlist_for_each_entry(frag, node, &zd->fraglist, fnode)
364 if (frag->seq == (seq&IEEE80211_SCTL_SEQ))
365 break;
366 if (!frag)
367 goto resubmit;
368 skb = frag->skb;
369 ptr = skb_put(skb, len);
370 if (ptr)
371 memcpy(ptr, data+8, len);
372 if (fc & IEEE80211_FCTL_MOREFRAGS)
373 goto resubmit;
374 hlist_del_init(&frag->fnode);
375 kfree(frag);
376 } else {
377 if (datalen<14)
378 goto resubmit;
379 skb = dev_alloc_skb(len + 14 + 2);
380 if (!skb)
381 goto resubmit;
382 skb_reserve(skb, 2);
383 memcpy(skb_put(skb, 12), &data[datalen-14], 12);
384 memcpy(skb_put(skb, 2), &data[6], 2);
385 memcpy(skb_put(skb, len), data+8, len);
386 }
387 skb->protocol = eth_type_trans(skb, zd->dev);
388 skb->dev->last_rx = jiffies;
389 zd->stats.rx_packets++;
390 zd->stats.rx_bytes += skb->len;
391 netif_rx(skb);
392 }
393 resubmit:
394 memset(data, 0, ZD1201_RXSIZE);
395
396 urb->status = 0;
397 urb->dev = zd->usb;
398 if(usb_submit_urb(urb, GFP_ATOMIC))
399 free = 1;
400
401 exit:
402 if (free) {
403 zd->rxlen = 0;
404 zd->rxdatas = 1;
405 wake_up(&zd->rxdataq);
406 kfree(urb->transfer_buffer);
407 }
408 return;
409 }
410
411 static int zd1201_getconfig(struct zd1201 *zd, int rid, void *riddata,
412 unsigned int riddatalen)
413 {
414 int err;
415 int i = 0;
416 int code;
417 int rid_fid;
418 int length;
419 unsigned char *pdata;
420
421 zd->rxdatas = 0;
422 err = zd1201_docmd(zd, ZD1201_CMDCODE_ACCESS, rid, 0, 0);
423 if (err)
424 return err;
425
426 wait_event_interruptible(zd->rxdataq, zd->rxdatas);
427 if (!zd->rxlen)
428 return -EIO;
429
430 code = le16_to_cpu(*(__le16*)(&zd->rxdata[4]));
431 rid_fid = le16_to_cpu(*(__le16*)(&zd->rxdata[6]));
432 length = le16_to_cpu(*(__le16*)(&zd->rxdata[8]));
433 if (length > zd->rxlen)
434 length = zd->rxlen-6;
435
436 /* If access bit is not on, then error */
437 if ((code & ZD1201_ACCESSBIT) != ZD1201_ACCESSBIT || rid_fid != rid )
438 return -EINVAL;
439
440 /* Not enough buffer for allocating data */
441 if (riddatalen != (length - 4)) {
442 dev_dbg(&zd->usb->dev, "riddatalen mismatches, expected=%u, (packet=%u) length=%u, rid=0x%04X, rid_fid=0x%04X\n",
443 riddatalen, zd->rxlen, length, rid, rid_fid);
444 return -ENODATA;
445 }
446
447 zd->rxdatas = 0;
448 /* Issue SetRxRid commnd */
449 err = zd1201_docmd(zd, ZD1201_CMDCODE_SETRXRID, rid, 0, length);
450 if (err)
451 return err;
452
453 /* Receive RID record from resource packets */
454 wait_event_interruptible(zd->rxdataq, zd->rxdatas);
455 if (!zd->rxlen)
456 return -EIO;
457
458 if (zd->rxdata[zd->rxlen - 1] != ZD1201_PACKET_RESOURCE) {
459 dev_dbg(&zd->usb->dev, "Packet type mismatch: 0x%x not 0x3\n",
460 zd->rxdata[zd->rxlen-1]);
461 return -EINVAL;
462 }
463
464 /* Set the data pointer and received data length */
465 pdata = zd->rxdata;
466 length = zd->rxlen;
467
468 do {
469 int actual_length;
470
471 actual_length = (length > 64) ? 64 : length;
472
473 if (pdata[0] != 0x3) {
474 dev_dbg(&zd->usb->dev, "Rx Resource packet type error: %02X\n",
475 pdata[0]);
476 return -EINVAL;
477 }
478
479 if (actual_length != 64) {
480 /* Trim the last packet type byte */
481 actual_length--;
482 }
483
484 /* Skip the 4 bytes header (RID length and RID) */
485 if (i == 0) {
486 pdata += 8;
487 actual_length -= 8;
488 } else {
489 pdata += 4;
490 actual_length -= 4;
491 }
492
493 memcpy(riddata, pdata, actual_length);
494 riddata += actual_length;
495 pdata += actual_length;
496 length -= 64;
497 i++;
498 } while (length > 0);
499
500 return 0;
501 }
502
503 /*
504 * resreq:
505 * byte type
506 * byte sequence
507 * u16 reserved
508 * byte data[12]
509 * total: 16
510 */
511 static int zd1201_setconfig(struct zd1201 *zd, int rid, void *buf, int len, int wait)
512 {
513 int err;
514 unsigned char *request;
515 int reqlen;
516 char seq=0;
517 struct urb *urb;
518 gfp_t gfp_mask = wait ? GFP_NOIO : GFP_ATOMIC;
519
520 len += 4; /* first 4 are for header */
521
522 zd->rxdatas = 0;
523 zd->rxlen = 0;
524 for (seq=0; len > 0; seq++) {
525 request = kmalloc(16, gfp_mask);
526 if (!request)
527 return -ENOMEM;
528 urb = usb_alloc_urb(0, gfp_mask);
529 if (!urb) {
530 kfree(request);
531 return -ENOMEM;
532 }
533 memset(request, 0, 16);
534 reqlen = len>12 ? 12 : len;
535 request[0] = ZD1201_USB_RESREQ;
536 request[1] = seq;
537 request[2] = 0;
538 request[3] = 0;
539 if (request[1] == 0) {
540 /* add header */
541 *(__le16*)&request[4] = cpu_to_le16((len-2+1)/2);
542 *(__le16*)&request[6] = cpu_to_le16(rid);
543 memcpy(request+8, buf, reqlen-4);
544 buf += reqlen-4;
545 } else {
546 memcpy(request+4, buf, reqlen);
547 buf += reqlen;
548 }
549
550 len -= reqlen;
551
552 usb_fill_bulk_urb(urb, zd->usb, usb_sndbulkpipe(zd->usb,
553 zd->endp_out2), request, 16, zd1201_usbfree, zd);
554 err = usb_submit_urb(urb, gfp_mask);
555 if (err)
556 goto err;
557 }
558
559 request = kmalloc(16, gfp_mask);
560 if (!request)
561 return -ENOMEM;
562 urb = usb_alloc_urb(0, gfp_mask);
563 if (!urb) {
564 kfree(request);
565 return -ENOMEM;
566 }
567 *((__le32*)request) = cpu_to_le32(ZD1201_USB_CMDREQ);
568 *((__le16*)&request[4]) =
569 cpu_to_le16(ZD1201_CMDCODE_ACCESS|ZD1201_ACCESSBIT);
570 *((__le16*)&request[6]) = cpu_to_le16(rid);
571 *((__le16*)&request[8]) = cpu_to_le16(0);
572 *((__le16*)&request[10]) = cpu_to_le16(0);
573 usb_fill_bulk_urb(urb, zd->usb, usb_sndbulkpipe(zd->usb, zd->endp_out2),
574 request, 16, zd1201_usbfree, zd);
575 err = usb_submit_urb(urb, gfp_mask);
576 if (err)
577 goto err;
578
579 if (wait) {
580 wait_event_interruptible(zd->rxdataq, zd->rxdatas);
581 if (!zd->rxlen || le16_to_cpu(*(__le16*)&zd->rxdata[6]) != rid) {
582 dev_dbg(&zd->usb->dev, "wrong or no RID received\n");
583 }
584 }
585
586 return 0;
587 err:
588 kfree(request);
589 usb_free_urb(urb);
590 return err;
591 }
592
593 static inline int zd1201_getconfig16(struct zd1201 *zd, int rid, short *val)
594 {
595 int err;
596 __le16 zdval;
597
598 err = zd1201_getconfig(zd, rid, &zdval, sizeof(__le16));
599 if (err)
600 return err;
601 *val = le16_to_cpu(zdval);
602 return 0;
603 }
604
605 static inline int zd1201_setconfig16(struct zd1201 *zd, int rid, short val)
606 {
607 __le16 zdval = cpu_to_le16(val);
608 return (zd1201_setconfig(zd, rid, &zdval, sizeof(__le16), 1));
609 }
610
611 static int zd1201_drvr_start(struct zd1201 *zd)
612 {
613 int err, i;
614 short max;
615 __le16 zdmax;
616 unsigned char *buffer;
617
618 buffer = kzalloc(ZD1201_RXSIZE, GFP_KERNEL);
619 if (!buffer)
620 return -ENOMEM;
621
622 usb_fill_bulk_urb(zd->rx_urb, zd->usb,
623 usb_rcvbulkpipe(zd->usb, zd->endp_in), buffer, ZD1201_RXSIZE,
624 zd1201_usbrx, zd);
625
626 err = usb_submit_urb(zd->rx_urb, GFP_KERNEL);
627 if (err)
628 goto err_buffer;
629
630 err = zd1201_docmd(zd, ZD1201_CMDCODE_INIT, 0, 0, 0);
631 if (err)
632 goto err_urb;
633
634 err = zd1201_getconfig(zd, ZD1201_RID_CNFMAXTXBUFFERNUMBER, &zdmax,
635 sizeof(__le16));
636 if (err)
637 goto err_urb;
638
639 max = le16_to_cpu(zdmax);
640 for (i=0; i<max; i++) {
641 err = zd1201_docmd(zd, ZD1201_CMDCODE_ALLOC, 1514, 0, 0);
642 if (err)
643 goto err_urb;
644 }
645
646 return 0;
647
648 err_urb:
649 usb_kill_urb(zd->rx_urb);
650 return err;
651 err_buffer:
652 kfree(buffer);
653 return err;
654 }
655
656 /* Magic alert: The firmware doesn't seem to like the MAC state being
657 * toggled in promisc (aka monitor) mode.
658 * (It works a number of times, but will halt eventually)
659 * So we turn it of before disabling and on after enabling if needed.
660 */
661 static int zd1201_enable(struct zd1201 *zd)
662 {
663 int err;
664
665 if (zd->mac_enabled)
666 return 0;
667
668 err = zd1201_docmd(zd, ZD1201_CMDCODE_ENABLE, 0, 0, 0);
669 if (!err)
670 zd->mac_enabled = 1;
671
672 if (zd->monitor)
673 err = zd1201_setconfig16(zd, ZD1201_RID_PROMISCUOUSMODE, 1);
674
675 return err;
676 }
677
678 static int zd1201_disable(struct zd1201 *zd)
679 {
680 int err;
681
682 if (!zd->mac_enabled)
683 return 0;
684 if (zd->monitor) {
685 err = zd1201_setconfig16(zd, ZD1201_RID_PROMISCUOUSMODE, 0);
686 if (err)
687 return err;
688 }
689
690 err = zd1201_docmd(zd, ZD1201_CMDCODE_DISABLE, 0, 0, 0);
691 if (!err)
692 zd->mac_enabled = 0;
693 return err;
694 }
695
696 static int zd1201_mac_reset(struct zd1201 *zd)
697 {
698 if (!zd->mac_enabled)
699 return 0;
700 zd1201_disable(zd);
701 return zd1201_enable(zd);
702 }
703
704 static int zd1201_join(struct zd1201 *zd, char *essid, int essidlen)
705 {
706 int err, val;
707 char buf[IW_ESSID_MAX_SIZE+2];
708
709 err = zd1201_disable(zd);
710 if (err)
711 return err;
712
713 val = ZD1201_CNFAUTHENTICATION_OPENSYSTEM;
714 val |= ZD1201_CNFAUTHENTICATION_SHAREDKEY;
715 err = zd1201_setconfig16(zd, ZD1201_RID_CNFAUTHENTICATION, val);
716 if (err)
717 return err;
718
719 *(__le16 *)buf = cpu_to_le16(essidlen);
720 memcpy(buf+2, essid, essidlen);
721 if (!zd->ap) { /* Normal station */
722 err = zd1201_setconfig(zd, ZD1201_RID_CNFDESIREDSSID, buf,
723 IW_ESSID_MAX_SIZE+2, 1);
724 if (err)
725 return err;
726 } else { /* AP */
727 err = zd1201_setconfig(zd, ZD1201_RID_CNFOWNSSID, buf,
728 IW_ESSID_MAX_SIZE+2, 1);
729 if (err)
730 return err;
731 }
732
733 err = zd1201_setconfig(zd, ZD1201_RID_CNFOWNMACADDR,
734 zd->dev->dev_addr, zd->dev->addr_len, 1);
735 if (err)
736 return err;
737
738 err = zd1201_enable(zd);
739 if (err)
740 return err;
741
742 msleep(100);
743 return 0;
744 }
745
746 static int zd1201_net_open(struct net_device *dev)
747 {
748 struct zd1201 *zd = (struct zd1201 *)dev->priv;
749
750 /* Start MAC with wildcard if no essid set */
751 if (!zd->mac_enabled)
752 zd1201_join(zd, zd->essid, zd->essidlen);
753 netif_start_queue(dev);
754
755 return 0;
756 }
757
758 static int zd1201_net_stop(struct net_device *dev)
759 {
760 netif_stop_queue(dev);
761 return 0;
762 }
763
764 /*
765 RFC 1042 encapsulates Ethernet frames in 802.11 frames
766 by prefixing them with 0xaa, 0xaa, 0x03) followed by a SNAP OID of 0
767 (0x00, 0x00, 0x00). Zd requires an additional padding, copy
768 of ethernet addresses, length of the standard RFC 1042 packet
769 and a command byte (which is nul for tx).
770
771 tx frame (from Wlan NG):
772 RFC 1042:
773 llc 0xAA 0xAA 0x03 (802.2 LLC)
774 snap 0x00 0x00 0x00 (Ethernet encapsulated)
775 type 2 bytes, Ethernet type field
776 payload (minus eth header)
777 Zydas specific:
778 padding 1B if (skb->len+8+1)%64==0
779 Eth MAC addr 12 bytes, Ethernet MAC addresses
780 length 2 bytes, RFC 1042 packet length
781 (llc+snap+type+payload)
782 zd 1 null byte, zd1201 packet type
783 */
784 static int zd1201_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
785 {
786 struct zd1201 *zd = (struct zd1201 *)dev->priv;
787 unsigned char *txbuf = zd->txdata;
788 int txbuflen, pad = 0, err;
789 struct urb *urb = zd->tx_urb;
790
791 if (!zd->mac_enabled || zd->monitor) {
792 zd->stats.tx_dropped++;
793 kfree_skb(skb);
794 return 0;
795 }
796 netif_stop_queue(dev);
797
798 txbuflen = skb->len + 8 + 1;
799 if (txbuflen%64 == 0) {
800 pad = 1;
801 txbuflen++;
802 }
803 txbuf[0] = 0xAA;
804 txbuf[1] = 0xAA;
805 txbuf[2] = 0x03;
806 txbuf[3] = 0x00; /* rfc1042 */
807 txbuf[4] = 0x00;
808 txbuf[5] = 0x00;
809
810 skb_copy_from_linear_data_offset(skb, 12, txbuf + 6, skb->len - 12);
811 if (pad)
812 txbuf[skb->len-12+6]=0;
813 skb_copy_from_linear_data(skb, txbuf + skb->len - 12 + 6 + pad, 12);
814 *(__be16*)&txbuf[skb->len+6+pad] = htons(skb->len-12+6);
815 txbuf[txbuflen-1] = 0;
816
817 usb_fill_bulk_urb(urb, zd->usb, usb_sndbulkpipe(zd->usb, zd->endp_out),
818 txbuf, txbuflen, zd1201_usbtx, zd);
819
820 err = usb_submit_urb(zd->tx_urb, GFP_ATOMIC);
821 if (err) {
822 zd->stats.tx_errors++;
823 netif_start_queue(dev);
824 return err;
825 }
826 zd->stats.tx_packets++;
827 zd->stats.tx_bytes += skb->len;
828 dev->trans_start = jiffies;
829 kfree_skb(skb);
830
831 return 0;
832 }
833
834 static void zd1201_tx_timeout(struct net_device *dev)
835 {
836 struct zd1201 *zd = (struct zd1201 *)dev->priv;
837
838 if (!zd)
839 return;
840 dev_warn(&zd->usb->dev, "%s: TX timeout, shooting down urb\n",
841 dev->name);
842 usb_unlink_urb(zd->tx_urb);
843 zd->stats.tx_errors++;
844 /* Restart the timeout to quiet the watchdog: */
845 dev->trans_start = jiffies;
846 }
847
848 static int zd1201_set_mac_address(struct net_device *dev, void *p)
849 {
850 struct sockaddr *addr = p;
851 struct zd1201 *zd = (struct zd1201 *)dev->priv;
852 int err;
853
854 if (!zd)
855 return -ENODEV;
856
857 err = zd1201_setconfig(zd, ZD1201_RID_CNFOWNMACADDR,
858 addr->sa_data, dev->addr_len, 1);
859 if (err)
860 return err;
861 memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
862
863 return zd1201_mac_reset(zd);
864 }
865
866 static struct net_device_stats *zd1201_get_stats(struct net_device *dev)
867 {
868 struct zd1201 *zd = (struct zd1201 *)dev->priv;
869
870 return &zd->stats;
871 }
872
873 static struct iw_statistics *zd1201_get_wireless_stats(struct net_device *dev)
874 {
875 struct zd1201 *zd = (struct zd1201 *)dev->priv;
876
877 return &zd->iwstats;
878 }
879
880 static void zd1201_set_multicast(struct net_device *dev)
881 {
882 struct zd1201 *zd = (struct zd1201 *)dev->priv;
883 struct dev_mc_list *mc = dev->mc_list;
884 unsigned char reqbuf[ETH_ALEN*ZD1201_MAXMULTI];
885 int i;
886
887 if (dev->mc_count > ZD1201_MAXMULTI)
888 return;
889
890 for (i=0; i<dev->mc_count; i++) {
891 memcpy(reqbuf+i*ETH_ALEN, mc->dmi_addr, ETH_ALEN);
892 mc = mc->next;
893 }
894 zd1201_setconfig(zd, ZD1201_RID_CNFGROUPADDRESS, reqbuf,
895 dev->mc_count*ETH_ALEN, 0);
896
897 }
898
899 static int zd1201_config_commit(struct net_device *dev,
900 struct iw_request_info *info, struct iw_point *data, char *essid)
901 {
902 struct zd1201 *zd = (struct zd1201 *)dev->priv;
903
904 return zd1201_mac_reset(zd);
905 }
906
907 static int zd1201_get_name(struct net_device *dev,
908 struct iw_request_info *info, char *name, char *extra)
909 {
910 strcpy(name, "IEEE 802.11b");
911 return 0;
912 }
913
914 static int zd1201_set_freq(struct net_device *dev,
915 struct iw_request_info *info, struct iw_freq *freq, char *extra)
916 {
917 struct zd1201 *zd = (struct zd1201 *)dev->priv;
918 short channel = 0;
919 int err;
920
921 if (freq->e == 0)
922 channel = freq->m;
923 else {
924 if (freq->m >= 2482)
925 channel = 14;
926 if (freq->m >= 2407)
927 channel = (freq->m-2407)/5;
928 }
929
930 err = zd1201_setconfig16(zd, ZD1201_RID_CNFOWNCHANNEL, channel);
931 if (err)
932 return err;
933
934 zd1201_mac_reset(zd);
935
936 return 0;
937 }
938
939 static int zd1201_get_freq(struct net_device *dev,
940 struct iw_request_info *info, struct iw_freq *freq, char *extra)
941 {
942 struct zd1201 *zd = (struct zd1201 *)dev->priv;
943 short channel;
944 int err;
945
946 err = zd1201_getconfig16(zd, ZD1201_RID_CNFOWNCHANNEL, &channel);
947 if (err)
948 return err;
949 freq->e = 0;
950 freq->m = channel;
951
952 return 0;
953 }
954
955 static int zd1201_set_mode(struct net_device *dev,
956 struct iw_request_info *info, __u32 *mode, char *extra)
957 {
958 struct zd1201 *zd = (struct zd1201 *)dev->priv;
959 short porttype, monitor = 0;
960 unsigned char buffer[IW_ESSID_MAX_SIZE+2];
961 int err;
962
963 if (zd->ap) {
964 if (*mode != IW_MODE_MASTER)
965 return -EINVAL;
966 return 0;
967 }
968
969 err = zd1201_setconfig16(zd, ZD1201_RID_PROMISCUOUSMODE, 0);
970 if (err)
971 return err;
972 zd->dev->type = ARPHRD_ETHER;
973 switch(*mode) {
974 case IW_MODE_MONITOR:
975 monitor = 1;
976 zd->dev->type = ARPHRD_IEEE80211;
977 /* Make sure we are no longer associated with by
978 setting an 'impossible' essid.
979 (otherwise we mess up firmware)
980 */
981 zd1201_join(zd, "\0-*#\0", 5);
982 /* Put port in pIBSS */
983 case 8: /* No pseudo-IBSS in wireless extensions (yet) */
984 porttype = ZD1201_PORTTYPE_PSEUDOIBSS;
985 break;
986 case IW_MODE_ADHOC:
987 porttype = ZD1201_PORTTYPE_IBSS;
988 break;
989 case IW_MODE_INFRA:
990 porttype = ZD1201_PORTTYPE_BSS;
991 break;
992 default:
993 return -EINVAL;
994 }
995
996 err = zd1201_setconfig16(zd, ZD1201_RID_CNFPORTTYPE, porttype);
997 if (err)
998 return err;
999 if (zd->monitor && !monitor) {
1000 zd1201_disable(zd);
1001 *(__le16 *)buffer = cpu_to_le16(zd->essidlen);
1002 memcpy(buffer+2, zd->essid, zd->essidlen);
1003 err = zd1201_setconfig(zd, ZD1201_RID_CNFDESIREDSSID,
1004 buffer, IW_ESSID_MAX_SIZE+2, 1);
1005 if (err)
1006 return err;
1007 }
1008 zd->monitor = monitor;
1009 /* If monitor mode is set we don't actually turn it on here since it
1010 * is done during mac reset anyway (see zd1201_mac_enable).
1011 */
1012 zd1201_mac_reset(zd);
1013
1014 return 0;
1015 }
1016
1017 static int zd1201_get_mode(struct net_device *dev,
1018 struct iw_request_info *info, __u32 *mode, char *extra)
1019 {
1020 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1021 short porttype;
1022 int err;
1023
1024 err = zd1201_getconfig16(zd, ZD1201_RID_CNFPORTTYPE, &porttype);
1025 if (err)
1026 return err;
1027 switch(porttype) {
1028 case ZD1201_PORTTYPE_IBSS:
1029 *mode = IW_MODE_ADHOC;
1030 break;
1031 case ZD1201_PORTTYPE_BSS:
1032 *mode = IW_MODE_INFRA;
1033 break;
1034 case ZD1201_PORTTYPE_WDS:
1035 *mode = IW_MODE_REPEAT;
1036 break;
1037 case ZD1201_PORTTYPE_PSEUDOIBSS:
1038 *mode = 8;/* No Pseudo-IBSS... */
1039 break;
1040 case ZD1201_PORTTYPE_AP:
1041 *mode = IW_MODE_MASTER;
1042 break;
1043 default:
1044 dev_dbg(&zd->usb->dev, "Unknown porttype: %d\n",
1045 porttype);
1046 *mode = IW_MODE_AUTO;
1047 }
1048 if (zd->monitor)
1049 *mode = IW_MODE_MONITOR;
1050
1051 return 0;
1052 }
1053
1054 static int zd1201_get_range(struct net_device *dev,
1055 struct iw_request_info *info, struct iw_point *wrq, char *extra)
1056 {
1057 struct iw_range *range = (struct iw_range *)extra;
1058
1059 wrq->length = sizeof(struct iw_range);
1060 memset(range, 0, sizeof(struct iw_range));
1061 range->we_version_compiled = WIRELESS_EXT;
1062 range->we_version_source = WIRELESS_EXT;
1063
1064 range->max_qual.qual = 128;
1065 range->max_qual.level = 128;
1066 range->max_qual.noise = 128;
1067 range->max_qual.updated = 7;
1068
1069 range->encoding_size[0] = 5;
1070 range->encoding_size[1] = 13;
1071 range->num_encoding_sizes = 2;
1072 range->max_encoding_tokens = ZD1201_NUMKEYS;
1073
1074 range->num_bitrates = 4;
1075 range->bitrate[0] = 1000000;
1076 range->bitrate[1] = 2000000;
1077 range->bitrate[2] = 5500000;
1078 range->bitrate[3] = 11000000;
1079
1080 range->min_rts = 0;
1081 range->min_frag = ZD1201_FRAGMIN;
1082 range->max_rts = ZD1201_RTSMAX;
1083 range->min_frag = ZD1201_FRAGMAX;
1084
1085 return 0;
1086 }
1087
1088 /* Little bit of magic here: we only get the quality if we poll
1089 * for it, and we never get an actual request to trigger such
1090 * a poll. Therefore we 'assume' that the user will soon ask for
1091 * the stats after asking the bssid.
1092 */
1093 static int zd1201_get_wap(struct net_device *dev,
1094 struct iw_request_info *info, struct sockaddr *ap_addr, char *extra)
1095 {
1096 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1097 unsigned char buffer[6];
1098
1099 if (!zd1201_getconfig(zd, ZD1201_RID_COMMSQUALITY, buffer, 6)) {
1100 /* Unfortunately the quality and noise reported is useless.
1101 they seem to be accumulators that increase until you
1102 read them, unless we poll on a fixed interval we can't
1103 use them
1104 */
1105 /*zd->iwstats.qual.qual = le16_to_cpu(((__le16 *)buffer)[0]);*/
1106 zd->iwstats.qual.level = le16_to_cpu(((__le16 *)buffer)[1]);
1107 /*zd->iwstats.qual.noise = le16_to_cpu(((__le16 *)buffer)[2]);*/
1108 zd->iwstats.qual.updated = 2;
1109 }
1110
1111 return zd1201_getconfig(zd, ZD1201_RID_CURRENTBSSID, ap_addr->sa_data, 6);
1112 }
1113
1114 static int zd1201_set_scan(struct net_device *dev,
1115 struct iw_request_info *info, struct iw_point *srq, char *extra)
1116 {
1117 /* We do everything in get_scan */
1118 return 0;
1119 }
1120
1121 static int zd1201_get_scan(struct net_device *dev,
1122 struct iw_request_info *info, struct iw_point *srq, char *extra)
1123 {
1124 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1125 int err, i, j, enabled_save;
1126 struct iw_event iwe;
1127 char *cev = extra;
1128 char *end_buf = extra + IW_SCAN_MAX_DATA;
1129
1130 /* No scanning in AP mode */
1131 if (zd->ap)
1132 return -EOPNOTSUPP;
1133
1134 /* Scan doesn't seem to work if disabled */
1135 enabled_save = zd->mac_enabled;
1136 zd1201_enable(zd);
1137
1138 zd->rxdatas = 0;
1139 err = zd1201_docmd(zd, ZD1201_CMDCODE_INQUIRE,
1140 ZD1201_INQ_SCANRESULTS, 0, 0);
1141 if (err)
1142 return err;
1143
1144 wait_event_interruptible(zd->rxdataq, zd->rxdatas);
1145 if (!zd->rxlen)
1146 return -EIO;
1147
1148 if (le16_to_cpu(*(__le16*)&zd->rxdata[2]) != ZD1201_INQ_SCANRESULTS)
1149 return -EIO;
1150
1151 for(i=8; i<zd->rxlen; i+=62) {
1152 iwe.cmd = SIOCGIWAP;
1153 iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
1154 memcpy(iwe.u.ap_addr.sa_data, zd->rxdata+i+6, 6);
1155 cev = iwe_stream_add_event(cev, end_buf, &iwe, IW_EV_ADDR_LEN);
1156
1157 iwe.cmd = SIOCGIWESSID;
1158 iwe.u.data.length = zd->rxdata[i+16];
1159 iwe.u.data.flags = 1;
1160 cev = iwe_stream_add_point(cev, end_buf, &iwe, zd->rxdata+i+18);
1161
1162 iwe.cmd = SIOCGIWMODE;
1163 if (zd->rxdata[i+14]&0x01)
1164 iwe.u.mode = IW_MODE_MASTER;
1165 else
1166 iwe.u.mode = IW_MODE_ADHOC;
1167 cev = iwe_stream_add_event(cev, end_buf, &iwe, IW_EV_UINT_LEN);
1168
1169 iwe.cmd = SIOCGIWFREQ;
1170 iwe.u.freq.m = zd->rxdata[i+0];
1171 iwe.u.freq.e = 0;
1172 cev = iwe_stream_add_event(cev, end_buf, &iwe, IW_EV_FREQ_LEN);
1173
1174 iwe.cmd = SIOCGIWRATE;
1175 iwe.u.bitrate.fixed = 0;
1176 iwe.u.bitrate.disabled = 0;
1177 for (j=0; j<10; j++) if (zd->rxdata[i+50+j]) {
1178 iwe.u.bitrate.value = (zd->rxdata[i+50+j]&0x7f)*500000;
1179 cev=iwe_stream_add_event(cev, end_buf, &iwe,
1180 IW_EV_PARAM_LEN);
1181 }
1182
1183 iwe.cmd = SIOCGIWENCODE;
1184 iwe.u.data.length = 0;
1185 if (zd->rxdata[i+14]&0x10)
1186 iwe.u.data.flags = IW_ENCODE_ENABLED;
1187 else
1188 iwe.u.data.flags = IW_ENCODE_DISABLED;
1189 cev = iwe_stream_add_point(cev, end_buf, &iwe, NULL);
1190
1191 iwe.cmd = IWEVQUAL;
1192 iwe.u.qual.qual = zd->rxdata[i+4];
1193 iwe.u.qual.noise= zd->rxdata[i+2]/10-100;
1194 iwe.u.qual.level = (256+zd->rxdata[i+4]*100)/255-100;
1195 iwe.u.qual.updated = 7;
1196 cev = iwe_stream_add_event(cev, end_buf, &iwe, IW_EV_QUAL_LEN);
1197 }
1198
1199 if (!enabled_save)
1200 zd1201_disable(zd);
1201
1202 srq->length = cev - extra;
1203 srq->flags = 0;
1204
1205 return 0;
1206 }
1207
1208 static int zd1201_set_essid(struct net_device *dev,
1209 struct iw_request_info *info, struct iw_point *data, char *essid)
1210 {
1211 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1212
1213 if (data->length > IW_ESSID_MAX_SIZE)
1214 return -EINVAL;
1215 if (data->length < 1)
1216 data->length = 1;
1217 zd->essidlen = data->length;
1218 memset(zd->essid, 0, IW_ESSID_MAX_SIZE+1);
1219 memcpy(zd->essid, essid, data->length);
1220 return zd1201_join(zd, zd->essid, zd->essidlen);
1221 }
1222
1223 static int zd1201_get_essid(struct net_device *dev,
1224 struct iw_request_info *info, struct iw_point *data, char *essid)
1225 {
1226 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1227
1228 memcpy(essid, zd->essid, zd->essidlen);
1229 data->flags = 1;
1230 data->length = zd->essidlen;
1231
1232 return 0;
1233 }
1234
1235 static int zd1201_get_nick(struct net_device *dev, struct iw_request_info *info,
1236 struct iw_point *data, char *nick)
1237 {
1238 strcpy(nick, "zd1201");
1239 data->flags = 1;
1240 data->length = strlen(nick);
1241 return 0;
1242 }
1243
1244 static int zd1201_set_rate(struct net_device *dev,
1245 struct iw_request_info *info, struct iw_param *rrq, char *extra)
1246 {
1247 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1248 short rate;
1249 int err;
1250
1251 switch (rrq->value) {
1252 case 1000000:
1253 rate = ZD1201_RATEB1;
1254 break;
1255 case 2000000:
1256 rate = ZD1201_RATEB2;
1257 break;
1258 case 5500000:
1259 rate = ZD1201_RATEB5;
1260 break;
1261 case 11000000:
1262 default:
1263 rate = ZD1201_RATEB11;
1264 break;
1265 }
1266 if (!rrq->fixed) { /* Also enable all lower bitrates */
1267 rate |= rate-1;
1268 }
1269
1270 err = zd1201_setconfig16(zd, ZD1201_RID_TXRATECNTL, rate);
1271 if (err)
1272 return err;
1273
1274 return zd1201_mac_reset(zd);
1275 }
1276
1277 static int zd1201_get_rate(struct net_device *dev,
1278 struct iw_request_info *info, struct iw_param *rrq, char *extra)
1279 {
1280 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1281 short rate;
1282 int err;
1283
1284 err = zd1201_getconfig16(zd, ZD1201_RID_CURRENTTXRATE, &rate);
1285 if (err)
1286 return err;
1287
1288 switch(rate) {
1289 case 1:
1290 rrq->value = 1000000;
1291 break;
1292 case 2:
1293 rrq->value = 2000000;
1294 break;
1295 case 5:
1296 rrq->value = 5500000;
1297 break;
1298 case 11:
1299 rrq->value = 11000000;
1300 break;
1301 default:
1302 rrq->value = 0;
1303 }
1304 rrq->fixed = 0;
1305 rrq->disabled = 0;
1306
1307 return 0;
1308 }
1309
1310 static int zd1201_set_rts(struct net_device *dev, struct iw_request_info *info,
1311 struct iw_param *rts, char *extra)
1312 {
1313 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1314 int err;
1315 short val = rts->value;
1316
1317 if (rts->disabled || !rts->fixed)
1318 val = ZD1201_RTSMAX;
1319 if (val > ZD1201_RTSMAX)
1320 return -EINVAL;
1321 if (val < 0)
1322 return -EINVAL;
1323
1324 err = zd1201_setconfig16(zd, ZD1201_RID_CNFRTSTHRESHOLD, val);
1325 if (err)
1326 return err;
1327 return zd1201_mac_reset(zd);
1328 }
1329
1330 static int zd1201_get_rts(struct net_device *dev, struct iw_request_info *info,
1331 struct iw_param *rts, char *extra)
1332 {
1333 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1334 short rtst;
1335 int err;
1336
1337 err = zd1201_getconfig16(zd, ZD1201_RID_CNFRTSTHRESHOLD, &rtst);
1338 if (err)
1339 return err;
1340 rts->value = rtst;
1341 rts->disabled = (rts->value == ZD1201_RTSMAX);
1342 rts->fixed = 1;
1343
1344 return 0;
1345 }
1346
1347 static int zd1201_set_frag(struct net_device *dev, struct iw_request_info *info,
1348 struct iw_param *frag, char *extra)
1349 {
1350 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1351 int err;
1352 short val = frag->value;
1353
1354 if (frag->disabled || !frag->fixed)
1355 val = ZD1201_FRAGMAX;
1356 if (val > ZD1201_FRAGMAX)
1357 return -EINVAL;
1358 if (val < ZD1201_FRAGMIN)
1359 return -EINVAL;
1360 if (val & 1)
1361 return -EINVAL;
1362 err = zd1201_setconfig16(zd, ZD1201_RID_CNFFRAGTHRESHOLD, val);
1363 if (err)
1364 return err;
1365 return zd1201_mac_reset(zd);
1366 }
1367
1368 static int zd1201_get_frag(struct net_device *dev, struct iw_request_info *info,
1369 struct iw_param *frag, char *extra)
1370 {
1371 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1372 short fragt;
1373 int err;
1374
1375 err = zd1201_getconfig16(zd, ZD1201_RID_CNFFRAGTHRESHOLD, &fragt);
1376 if (err)
1377 return err;
1378 frag->value = fragt;
1379 frag->disabled = (frag->value == ZD1201_FRAGMAX);
1380 frag->fixed = 1;
1381
1382 return 0;
1383 }
1384
1385 static int zd1201_set_retry(struct net_device *dev,
1386 struct iw_request_info *info, struct iw_param *rrq, char *extra)
1387 {
1388 return 0;
1389 }
1390
1391 static int zd1201_get_retry(struct net_device *dev,
1392 struct iw_request_info *info, struct iw_param *rrq, char *extra)
1393 {
1394 return 0;
1395 }
1396
1397 static int zd1201_set_encode(struct net_device *dev,
1398 struct iw_request_info *info, struct iw_point *erq, char *key)
1399 {
1400 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1401 short i;
1402 int err, rid;
1403
1404 if (erq->length > ZD1201_MAXKEYLEN)
1405 return -EINVAL;
1406
1407 i = (erq->flags & IW_ENCODE_INDEX)-1;
1408 if (i == -1) {
1409 err = zd1201_getconfig16(zd,ZD1201_RID_CNFDEFAULTKEYID,&i);
1410 if (err)
1411 return err;
1412 } else {
1413 err = zd1201_setconfig16(zd, ZD1201_RID_CNFDEFAULTKEYID, i);
1414 if (err)
1415 return err;
1416 }
1417
1418 if (i < 0 || i >= ZD1201_NUMKEYS)
1419 return -EINVAL;
1420
1421 rid = ZD1201_RID_CNFDEFAULTKEY0 + i;
1422 err = zd1201_setconfig(zd, rid, key, erq->length, 1);
1423 if (err)
1424 return err;
1425 zd->encode_keylen[i] = erq->length;
1426 memcpy(zd->encode_keys[i], key, erq->length);
1427
1428 i=0;
1429 if (!(erq->flags & IW_ENCODE_DISABLED & IW_ENCODE_MODE)) {
1430 i |= 0x01;
1431 zd->encode_enabled = 1;
1432 } else
1433 zd->encode_enabled = 0;
1434 if (erq->flags & IW_ENCODE_RESTRICTED & IW_ENCODE_MODE) {
1435 i |= 0x02;
1436 zd->encode_restricted = 1;
1437 } else
1438 zd->encode_restricted = 0;
1439 err = zd1201_setconfig16(zd, ZD1201_RID_CNFWEBFLAGS, i);
1440 if (err)
1441 return err;
1442
1443 if (zd->encode_enabled)
1444 i = ZD1201_CNFAUTHENTICATION_SHAREDKEY;
1445 else
1446 i = ZD1201_CNFAUTHENTICATION_OPENSYSTEM;
1447 err = zd1201_setconfig16(zd, ZD1201_RID_CNFAUTHENTICATION, i);
1448 if (err)
1449 return err;
1450
1451 return zd1201_mac_reset(zd);
1452 }
1453
1454 static int zd1201_get_encode(struct net_device *dev,
1455 struct iw_request_info *info, struct iw_point *erq, char *key)
1456 {
1457 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1458 short i;
1459 int err;
1460
1461 if (zd->encode_enabled)
1462 erq->flags = IW_ENCODE_ENABLED;
1463 else
1464 erq->flags = IW_ENCODE_DISABLED;
1465 if (zd->encode_restricted)
1466 erq->flags |= IW_ENCODE_RESTRICTED;
1467 else
1468 erq->flags |= IW_ENCODE_OPEN;
1469
1470 i = (erq->flags & IW_ENCODE_INDEX) -1;
1471 if (i == -1) {
1472 err = zd1201_getconfig16(zd, ZD1201_RID_CNFDEFAULTKEYID, &i);
1473 if (err)
1474 return err;
1475 }
1476 if (i<0 || i>= ZD1201_NUMKEYS)
1477 return -EINVAL;
1478
1479 erq->flags |= i+1;
1480
1481 erq->length = zd->encode_keylen[i];
1482 memcpy(key, zd->encode_keys[i], erq->length);
1483
1484 return 0;
1485 }
1486
1487 static int zd1201_set_power(struct net_device *dev,
1488 struct iw_request_info *info, struct iw_param *vwrq, char *extra)
1489 {
1490 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1491 short enabled, duration, level;
1492 int err;
1493
1494 enabled = vwrq->disabled ? 0 : 1;
1495 if (enabled) {
1496 if (vwrq->flags & IW_POWER_PERIOD) {
1497 duration = vwrq->value;
1498 err = zd1201_setconfig16(zd,
1499 ZD1201_RID_CNFMAXSLEEPDURATION, duration);
1500 if (err)
1501 return err;
1502 goto out;
1503 }
1504 if (vwrq->flags & IW_POWER_TIMEOUT) {
1505 err = zd1201_getconfig16(zd,
1506 ZD1201_RID_CNFMAXSLEEPDURATION, &duration);
1507 if (err)
1508 return err;
1509 level = vwrq->value * 4 / duration;
1510 if (level > 4)
1511 level = 4;
1512 if (level < 0)
1513 level = 0;
1514 err = zd1201_setconfig16(zd, ZD1201_RID_CNFPMEPS,
1515 level);
1516 if (err)
1517 return err;
1518 goto out;
1519 }
1520 return -EINVAL;
1521 }
1522 out:
1523 return zd1201_setconfig16(zd, ZD1201_RID_CNFPMENABLED, enabled);
1524 }
1525
1526 static int zd1201_get_power(struct net_device *dev,
1527 struct iw_request_info *info, struct iw_param *vwrq, char *extra)
1528 {
1529 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1530 short enabled, level, duration;
1531 int err;
1532
1533 err = zd1201_getconfig16(zd, ZD1201_RID_CNFPMENABLED, &enabled);
1534 if (err)
1535 return err;
1536 err = zd1201_getconfig16(zd, ZD1201_RID_CNFPMEPS, &level);
1537 if (err)
1538 return err;
1539 err = zd1201_getconfig16(zd, ZD1201_RID_CNFMAXSLEEPDURATION, &duration);
1540 if (err)
1541 return err;
1542 vwrq->disabled = enabled ? 0 : 1;
1543 if (vwrq->flags & IW_POWER_TYPE) {
1544 if (vwrq->flags & IW_POWER_PERIOD) {
1545 vwrq->value = duration;
1546 vwrq->flags = IW_POWER_PERIOD;
1547 } else {
1548 vwrq->value = duration * level / 4;
1549 vwrq->flags = IW_POWER_TIMEOUT;
1550 }
1551 }
1552 if (vwrq->flags & IW_POWER_MODE) {
1553 if (enabled && level)
1554 vwrq->flags = IW_POWER_UNICAST_R;
1555 else
1556 vwrq->flags = IW_POWER_ALL_R;
1557 }
1558
1559 return 0;
1560 }
1561
1562
1563 static const iw_handler zd1201_iw_handler[] =
1564 {
1565 (iw_handler) zd1201_config_commit, /* SIOCSIWCOMMIT */
1566 (iw_handler) zd1201_get_name, /* SIOCGIWNAME */
1567 (iw_handler) NULL, /* SIOCSIWNWID */
1568 (iw_handler) NULL, /* SIOCGIWNWID */
1569 (iw_handler) zd1201_set_freq, /* SIOCSIWFREQ */
1570 (iw_handler) zd1201_get_freq, /* SIOCGIWFREQ */
1571 (iw_handler) zd1201_set_mode, /* SIOCSIWMODE */
1572 (iw_handler) zd1201_get_mode, /* SIOCGIWMODE */
1573 (iw_handler) NULL, /* SIOCSIWSENS */
1574 (iw_handler) NULL, /* SIOCGIWSENS */
1575 (iw_handler) NULL, /* SIOCSIWRANGE */
1576 (iw_handler) zd1201_get_range, /* SIOCGIWRANGE */
1577 (iw_handler) NULL, /* SIOCSIWPRIV */
1578 (iw_handler) NULL, /* SIOCGIWPRIV */
1579 (iw_handler) NULL, /* SIOCSIWSTATS */
1580 (iw_handler) NULL, /* SIOCGIWSTATS */
1581 (iw_handler) NULL, /* SIOCSIWSPY */
1582 (iw_handler) NULL, /* SIOCGIWSPY */
1583 (iw_handler) NULL, /* -- hole -- */
1584 (iw_handler) NULL, /* -- hole -- */
1585 (iw_handler) NULL/*zd1201_set_wap*/, /* SIOCSIWAP */
1586 (iw_handler) zd1201_get_wap, /* SIOCGIWAP */
1587 (iw_handler) NULL, /* -- hole -- */
1588 (iw_handler) NULL, /* SIOCGIWAPLIST */
1589 (iw_handler) zd1201_set_scan, /* SIOCSIWSCAN */
1590 (iw_handler) zd1201_get_scan, /* SIOCGIWSCAN */
1591 (iw_handler) zd1201_set_essid, /* SIOCSIWESSID */
1592 (iw_handler) zd1201_get_essid, /* SIOCGIWESSID */
1593 (iw_handler) NULL, /* SIOCSIWNICKN */
1594 (iw_handler) zd1201_get_nick, /* SIOCGIWNICKN */
1595 (iw_handler) NULL, /* -- hole -- */
1596 (iw_handler) NULL, /* -- hole -- */
1597 (iw_handler) zd1201_set_rate, /* SIOCSIWRATE */
1598 (iw_handler) zd1201_get_rate, /* SIOCGIWRATE */
1599 (iw_handler) zd1201_set_rts, /* SIOCSIWRTS */
1600 (iw_handler) zd1201_get_rts, /* SIOCGIWRTS */
1601 (iw_handler) zd1201_set_frag, /* SIOCSIWFRAG */
1602 (iw_handler) zd1201_get_frag, /* SIOCGIWFRAG */
1603 (iw_handler) NULL, /* SIOCSIWTXPOW */
1604 (iw_handler) NULL, /* SIOCGIWTXPOW */
1605 (iw_handler) zd1201_set_retry, /* SIOCSIWRETRY */
1606 (iw_handler) zd1201_get_retry, /* SIOCGIWRETRY */
1607 (iw_handler) zd1201_set_encode, /* SIOCSIWENCODE */
1608 (iw_handler) zd1201_get_encode, /* SIOCGIWENCODE */
1609 (iw_handler) zd1201_set_power, /* SIOCSIWPOWER */
1610 (iw_handler) zd1201_get_power, /* SIOCGIWPOWER */
1611 };
1612
1613 static int zd1201_set_hostauth(struct net_device *dev,
1614 struct iw_request_info *info, struct iw_param *rrq, char *extra)
1615 {
1616 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1617
1618 if (!zd->ap)
1619 return -EOPNOTSUPP;
1620
1621 return zd1201_setconfig16(zd, ZD1201_RID_CNFHOSTAUTH, rrq->value);
1622 }
1623
1624 static int zd1201_get_hostauth(struct net_device *dev,
1625 struct iw_request_info *info, struct iw_param *rrq, char *extra)
1626 {
1627 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1628 short hostauth;
1629 int err;
1630
1631 if (!zd->ap)
1632 return -EOPNOTSUPP;
1633
1634 err = zd1201_getconfig16(zd, ZD1201_RID_CNFHOSTAUTH, &hostauth);
1635 if (err)
1636 return err;
1637 rrq->value = hostauth;
1638 rrq->fixed = 1;
1639
1640 return 0;
1641 }
1642
1643 static int zd1201_auth_sta(struct net_device *dev,
1644 struct iw_request_info *info, struct sockaddr *sta, char *extra)
1645 {
1646 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1647 unsigned char buffer[10];
1648
1649 if (!zd->ap)
1650 return -EOPNOTSUPP;
1651
1652 memcpy(buffer, sta->sa_data, ETH_ALEN);
1653 *(short*)(buffer+6) = 0; /* 0==success, 1==failure */
1654 *(short*)(buffer+8) = 0;
1655
1656 return zd1201_setconfig(zd, ZD1201_RID_AUTHENTICATESTA, buffer, 10, 1);
1657 }
1658
1659 static int zd1201_set_maxassoc(struct net_device *dev,
1660 struct iw_request_info *info, struct iw_param *rrq, char *extra)
1661 {
1662 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1663 int err;
1664
1665 if (!zd->ap)
1666 return -EOPNOTSUPP;
1667
1668 err = zd1201_setconfig16(zd, ZD1201_RID_CNFMAXASSOCSTATIONS, rrq->value);
1669 if (err)
1670 return err;
1671 return 0;
1672 }
1673
1674 static int zd1201_get_maxassoc(struct net_device *dev,
1675 struct iw_request_info *info, struct iw_param *rrq, char *extra)
1676 {
1677 struct zd1201 *zd = (struct zd1201 *)dev->priv;
1678 short maxassoc;
1679 int err;
1680
1681 if (!zd->ap)
1682 return -EOPNOTSUPP;
1683
1684 err = zd1201_getconfig16(zd, ZD1201_RID_CNFMAXASSOCSTATIONS, &maxassoc);
1685 if (err)
1686 return err;
1687 rrq->value = maxassoc;
1688 rrq->fixed = 1;
1689
1690 return 0;
1691 }
1692
1693 static const iw_handler zd1201_private_handler[] = {
1694 (iw_handler) zd1201_set_hostauth, /* ZD1201SIWHOSTAUTH */
1695 (iw_handler) zd1201_get_hostauth, /* ZD1201GIWHOSTAUTH */
1696 (iw_handler) zd1201_auth_sta, /* ZD1201SIWAUTHSTA */
1697 (iw_handler) NULL, /* nothing to get */
1698 (iw_handler) zd1201_set_maxassoc, /* ZD1201SIMAXASSOC */
1699 (iw_handler) zd1201_get_maxassoc, /* ZD1201GIMAXASSOC */
1700 };
1701
1702 static const struct iw_priv_args zd1201_private_args[] = {
1703 { ZD1201SIWHOSTAUTH, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
1704 IW_PRIV_TYPE_NONE, "sethostauth" },
1705 { ZD1201GIWHOSTAUTH, IW_PRIV_TYPE_NONE,
1706 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "gethostauth" },
1707 { ZD1201SIWAUTHSTA, IW_PRIV_TYPE_ADDR | IW_PRIV_SIZE_FIXED | 1,
1708 IW_PRIV_TYPE_NONE, "authstation" },
1709 { ZD1201SIWMAXASSOC, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
1710 IW_PRIV_TYPE_NONE, "setmaxassoc" },
1711 { ZD1201GIWMAXASSOC, IW_PRIV_TYPE_NONE,
1712 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getmaxassoc" },
1713 };
1714
1715 static const struct iw_handler_def zd1201_iw_handlers = {
1716 .num_standard = ARRAY_SIZE(zd1201_iw_handler),
1717 .num_private = ARRAY_SIZE(zd1201_private_handler),
1718 .num_private_args = ARRAY_SIZE(zd1201_private_args),
1719 .standard = (iw_handler *)zd1201_iw_handler,
1720 .private = (iw_handler *)zd1201_private_handler,
1721 .private_args = (struct iw_priv_args *) zd1201_private_args,
1722 .get_wireless_stats = zd1201_get_wireless_stats,
1723 };
1724
1725 static int zd1201_probe(struct usb_interface *interface,
1726 const struct usb_device_id *id)
1727 {
1728 struct zd1201 *zd;
1729 struct usb_device *usb;
1730 int err;
1731 short porttype;
1732 char buf[IW_ESSID_MAX_SIZE+2];
1733
1734 usb = interface_to_usbdev(interface);
1735
1736 zd = kzalloc(sizeof(struct zd1201), GFP_KERNEL);
1737 if (!zd)
1738 return -ENOMEM;
1739 zd->ap = ap;
1740 zd->usb = usb;
1741 zd->removed = 0;
1742 init_waitqueue_head(&zd->rxdataq);
1743 INIT_HLIST_HEAD(&zd->fraglist);
1744
1745 err = zd1201_fw_upload(usb, zd->ap);
1746 if (err) {
1747 dev_err(&usb->dev, "zd1201 firmware upload failed: %d\n", err);
1748 goto err_zd;
1749 }
1750
1751 zd->endp_in = 1;
1752 zd->endp_out = 1;
1753 zd->endp_out2 = 2;
1754 zd->rx_urb = usb_alloc_urb(0, GFP_KERNEL);
1755 zd->tx_urb = usb_alloc_urb(0, GFP_KERNEL);
1756 if (!zd->rx_urb || !zd->tx_urb)
1757 goto err_zd;
1758
1759 mdelay(100);
1760 err = zd1201_drvr_start(zd);
1761 if (err)
1762 goto err_zd;
1763
1764 err = zd1201_setconfig16(zd, ZD1201_RID_CNFMAXDATALEN, 2312);
1765 if (err)
1766 goto err_start;
1767
1768 err = zd1201_setconfig16(zd, ZD1201_RID_TXRATECNTL,
1769 ZD1201_RATEB1 | ZD1201_RATEB2 | ZD1201_RATEB5 | ZD1201_RATEB11);
1770 if (err)
1771 goto err_start;
1772
1773 zd->dev = alloc_etherdev(0);
1774 if (!zd->dev)
1775 goto err_start;
1776
1777 zd->dev->priv = zd;
1778 zd->dev->open = zd1201_net_open;
1779 zd->dev->stop = zd1201_net_stop;
1780 zd->dev->get_stats = zd1201_get_stats;
1781 zd->dev->wireless_handlers =
1782 (struct iw_handler_def *)&zd1201_iw_handlers;
1783 zd->dev->hard_start_xmit = zd1201_hard_start_xmit;
1784 zd->dev->watchdog_timeo = ZD1201_TX_TIMEOUT;
1785 zd->dev->tx_timeout = zd1201_tx_timeout;
1786 zd->dev->set_multicast_list = zd1201_set_multicast;
1787 zd->dev->set_mac_address = zd1201_set_mac_address;
1788 strcpy(zd->dev->name, "wlan%d");
1789
1790 err = zd1201_getconfig(zd, ZD1201_RID_CNFOWNMACADDR,
1791 zd->dev->dev_addr, zd->dev->addr_len);
1792 if (err)
1793 goto err_net;
1794
1795 /* Set wildcard essid to match zd->essid */
1796 *(__le16 *)buf = cpu_to_le16(0);
1797 err = zd1201_setconfig(zd, ZD1201_RID_CNFDESIREDSSID, buf,
1798 IW_ESSID_MAX_SIZE+2, 1);
1799 if (err)
1800 goto err_net;
1801
1802 if (zd->ap)
1803 porttype = ZD1201_PORTTYPE_AP;
1804 else
1805 porttype = ZD1201_PORTTYPE_BSS;
1806 err = zd1201_setconfig16(zd, ZD1201_RID_CNFPORTTYPE, porttype);
1807 if (err)
1808 goto err_net;
1809
1810 SET_NETDEV_DEV(zd->dev, &usb->dev);
1811
1812 err = register_netdev(zd->dev);
1813 if (err)
1814 goto err_net;
1815 dev_info(&usb->dev, "%s: ZD1201 USB Wireless interface\n",
1816 zd->dev->name);
1817
1818 usb_set_intfdata(interface, zd);
1819 zd1201_enable(zd); /* zd1201 likes to startup enabled, */
1820 zd1201_disable(zd); /* interfering with all the wifis in range */
1821 return 0;
1822
1823 err_net:
1824 free_netdev(zd->dev);
1825 err_start:
1826 /* Leave the device in reset state */
1827 zd1201_docmd(zd, ZD1201_CMDCODE_INIT, 0, 0, 0);
1828 err_zd:
1829 usb_free_urb(zd->tx_urb);
1830 usb_free_urb(zd->rx_urb);
1831 kfree(zd);
1832 return err;
1833 }
1834
1835 static void zd1201_disconnect(struct usb_interface *interface)
1836 {
1837 struct zd1201 *zd=(struct zd1201 *)usb_get_intfdata(interface);
1838 struct hlist_node *node, *node2;
1839 struct zd1201_frag *frag;
1840
1841 if (!zd)
1842 return;
1843 usb_set_intfdata(interface, NULL);
1844 if (zd->dev) {
1845 unregister_netdev(zd->dev);
1846 free_netdev(zd->dev);
1847 }
1848
1849 hlist_for_each_entry_safe(frag, node, node2, &zd->fraglist, fnode) {
1850 hlist_del_init(&frag->fnode);
1851 kfree_skb(frag->skb);
1852 kfree(frag);
1853 }
1854
1855 if (zd->tx_urb) {
1856 usb_kill_urb(zd->tx_urb);
1857 usb_free_urb(zd->tx_urb);
1858 }
1859 if (zd->rx_urb) {
1860 usb_kill_urb(zd->rx_urb);
1861 usb_free_urb(zd->rx_urb);
1862 }
1863 kfree(zd);
1864 }
1865
1866 #ifdef CONFIG_PM
1867
1868 static int zd1201_suspend(struct usb_interface *interface,
1869 pm_message_t message)
1870 {
1871 struct zd1201 *zd = usb_get_intfdata(interface);
1872
1873 netif_device_detach(zd->dev);
1874
1875 zd->was_enabled = zd->mac_enabled;
1876
1877 if (zd->was_enabled)
1878 return zd1201_disable(zd);
1879 else
1880 return 0;
1881 }
1882
1883 static int zd1201_resume(struct usb_interface *interface)
1884 {
1885 struct zd1201 *zd = usb_get_intfdata(interface);
1886
1887 if (!zd || !zd->dev)
1888 return -ENODEV;
1889
1890 netif_device_attach(zd->dev);
1891
1892 if (zd->was_enabled)
1893 return zd1201_enable(zd);
1894 else
1895 return 0;
1896 }
1897
1898 #else
1899
1900 #define zd1201_suspend NULL
1901 #define zd1201_resume NULL
1902
1903 #endif
1904
1905 static struct usb_driver zd1201_usb = {
1906 .name = "zd1201",
1907 .probe = zd1201_probe,
1908 .disconnect = zd1201_disconnect,
1909 .id_table = zd1201_table,
1910 .suspend = zd1201_suspend,
1911 .resume = zd1201_resume,
1912 };
1913
1914 static int __init zd1201_init(void)
1915 {
1916 return usb_register(&zd1201_usb);
1917 }
1918
1919 static void __exit zd1201_cleanup(void)
1920 {
1921 usb_deregister(&zd1201_usb);
1922 }
1923
1924 module_init(zd1201_init);
1925 module_exit(zd1201_cleanup);
Support for the Chinese Samsung S3C2440 based development boards