Linux kernel & device driver programming

Cross-Referenced Linux and Device Driver Code

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Version: [ 2.6.11.8 ] [ 2.6.25 ] [ 2.6.25.8 ] [ 2.6.31.13 ] Architecture: [ i386 ]

Diff markup

Differences between /linux/drivers/net/wireless/zd1201.c (Version 2.6.25) and /linux/drivers/net/wireless/zd1201.c (Version 2.6.11.8)


  1 /*                                                  1 
  2  *      Driver for ZyDAS zd1201 based wireless    
  3  *                                                
  4  *      Copyright (c) 2004, 2005 Jeroen Vreeke    
  5  *                                                
  6  *      This program is free software; you can    
  7  *      modify it under the terms of the GNU G    
  8  *      version 2 as published by the Free Sof    
  9  *                                                
 10  *      Parts of this driver have been derived    
 11  *      modified by ZyDAS. They also made docu    
 12  *      Copyright (C) 1999 AbsoluteValue Syste    
 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)}, /* Peabi    
 29         {USB_DEVICE(0x0ace, 0x1201)}, /* ZyDAS    
 30         {USB_DEVICE(0x050d, 0x6051)}, /* Belki    
 31         {USB_DEVICE(0x0db0, 0x6823)}, /* MSI U    
 32         {USB_DEVICE(0x1044, 0x8005)}, /* GIGAB    
 33         {}                                        
 34 };                                                
 35                                                   
 36 static int ap;  /* Are we an AP or a normal st    
 37                                                   
 38 #define ZD1201_VERSION  "0.15"                    
 39                                                   
 40 MODULE_AUTHOR("Jeroen Vreeken <pe1rxq@amsat.or    
 41 MODULE_DESCRIPTION("Driver for ZyDAS ZD1201 ba    
 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    
 46 MODULE_DEVICE_TABLE(usb, zd1201_table);           
 47                                                   
 48                                                   
 49 static int zd1201_fw_upload(struct usb_device     
 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, fwfi    
 65         if (err) {                                
 66                 dev_err(&dev->dev, "Failed to     
 67                 dev_err(&dev->dev, "Make sure     
 68                 dev_err(&dev->dev, "Goto http:    
 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) ?     
 81                 memcpy(buf, data, translen);      
 82                                                   
 83                 err = usb_control_msg(dev, usb    
 84                     USB_DIR_OUT | 0x40, 0, 0,     
 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_sndctrl    
 94             USB_DIR_OUT | 0x40, 0, 0, NULL, 0,    
 95         if (err < 0)                              
 96                 goto exit;                        
 97                                                   
 98         err = usb_control_msg(dev, usb_rcvctrl    
 99             USB_DIR_IN | 0x40, 0,0, &ret, size    
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    
128                             zd->dev->name, urb    
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    
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(ZD12    
158         *((__le16*)&command[4]) = cpu_to_le16(    
159         *((__le16*)&command[6]) = cpu_to_le16(    
160         *((__le16*)&command[8]) = cpu_to_le16(    
161         *((__le16*)&command[10])= cpu_to_le16(    
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_sn    
169                           command, 16, zd1201_    
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_bu    
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    
208                             zd->dev->name, urb    
209                         free = 1;                 
210                         goto exit;                
211         }                                         
212                                                   
213         if (urb->status != 0 || urb->actual_le    
214                 goto resubmit;                    
215                                                   
216         type = data[0];                           
217         if (type == ZD1201_PACKET_EVENTSTAT ||    
218                 memcpy(zd->rxdata, data, urb->    
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, frame    
227                 framelen = le16_to_cpu(*(__le1    
228                 infotype = le16_to_cpu(*(__le1    
229                                                   
230                 if (infotype == ZD1201_INF_LIN    
231                         short linkstatus;         
232                                                   
233                         linkstatus = le16_to_c    
234                         switch(linkstatus) {      
235                                 case 1:           
236                                         netif_    
237                                         break;    
238                                 case 2:           
239                                         netif_    
240                                         break;    
241                                 case 3:           
242                                         netif_    
243                                         break;    
244                                 case 4:           
245                                         netif_    
246                                         break;    
247                                 default:          
248                                         netif_    
249                         }                         
250                         goto resubmit;            
251                 }                                 
252                 if (infotype == ZD1201_INF_ASS    
253                         short status = le16_to    
254                         int event;                
255                         union iwreq_data wrqu;    
256                                                   
257                         switch (status) {         
258                                 case ZD1201_AS    
259                                 case ZD1201_AS    
260                                         event     
261                                         break;    
262                                 case ZD1201_AS    
263                                 case ZD1201_AS    
264                                 case ZD1201_AS    
265                                 default:          
266                                         event     
267                         }                         
268                         memcpy(wrqu.addr.sa_da    
269                         wrqu.addr.sa_family =     
270                                                   
271                         /* Send event to user     
272                         wireless_send_event(zd    
273                                                   
274                         goto resubmit;            
275                 }                                 
276                 if (infotype == ZD1201_INF_AUT    
277                         union iwreq_data wrqu;    
278                                                   
279                         memcpy(wrqu.addr.sa_da    
280                         wrqu.addr.sa_family =     
281                         /* There isn't a event    
282                            We assume that user    
283                            see a new station b    
284                            authstation ioctl t    
285                         wireless_send_event(zd    
286                         goto resubmit;            
287                 }                                 
288                 /* Other infotypes are handled    
289                 zd->rxlen = 0;                    
290                 while (i < urb->actual_length)    
291                         copylen = le16_to_cpu(    
292                         /* Sanity check, somet    
293                         if (copylen+zd->rxlen     
294                                 break;            
295                         memcpy(zd->rxdata+zd->    
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] == ZD12    
307                 int datalen = urb->actual_leng    
308                 unsigned short len, fc, seq;      
309                 struct hlist_node *node;          
310                                                   
311                 len = ntohs(*(__be16 *)&data[d    
312                 if (len>datalen)                  
313                         len=datalen;              
314                 fc = le16_to_cpu(*(__le16 *)&d    
315                 seq = le16_to_cpu(*(__le16 *)&    
316                                                   
317                 if (zd->monitor) {                
318                         if (datalen < 24)         
319                                 goto resubmit;    
320                         if (!(skb = dev_alloc_    
321                                 goto resubmit;    
322                                                   
323                         memcpy(skb_put(skb, 2)    
324                         memcpy(skb_put(skb, 2)    
325                         memcpy(skb_put(skb, 6)    
326                         memcpy(skb_put(skb, 6)    
327                         memcpy(skb_put(skb, 6)    
328                         memcpy(skb_put(skb, 2)    
329                         memcpy(skb_put(skb, le    
330                         skb->protocol = eth_ty    
331                         skb->dev->last_rx = ji    
332                         zd->stats.rx_packets++    
333                         zd->stats.rx_bytes +=     
334                         netif_rx(skb);            
335                         goto resubmit;            
336                 }                                 
337                                                   
338                 if ((seq & IEEE80211_SCTL_FRAG    
339                     (fc & IEEE80211_FCTL_MOREF    
340                         struct zd1201_frag *fr    
341                         char *ptr;                
342                                                   
343                         if (datalen<14)           
344                                 goto resubmit;    
345                         if ((seq & IEEE80211_S    
346                                 frag = kmalloc    
347                                 if (!frag)        
348                                         goto r    
349                                 skb = dev_allo    
350                                 if (!skb) {       
351                                         kfree(    
352                                         goto r    
353                                 }                 
354                                 frag->skb = sk    
355                                 frag->seq = se    
356                                 skb_reserve(sk    
357                                 memcpy(skb_put    
358                                 memcpy(skb_put    
359                                 memcpy(skb_put    
360                                 hlist_add_head    
361                                 goto resubmit;    
362                         }                         
363                         hlist_for_each_entry(f    
364                                 if (frag->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, da    
372                         if (fc & IEEE80211_FCT    
373                                 goto resubmit;    
374                         hlist_del_init(&frag->    
375                         kfree(frag);              
376                 } else {                          
377                         if (datalen<14)           
378                                 goto resubmit;    
379                         skb = dev_alloc_skb(le    
380                         if (!skb)                 
381                                 goto resubmit;    
382                         skb_reserve(skb, 2);      
383                         memcpy(skb_put(skb, 12    
384                         memcpy(skb_put(skb, 2)    
385                         memcpy(skb_put(skb, le    
386                 }                                 
387                 skb->protocol = eth_type_trans    
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,    
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_    
423         if (err)                                  
424                 return err;                       
425                                                   
426         wait_event_interruptible(zd->rxdataq,     
427         if (!zd->rxlen)                           
428                 return -EIO;                      
429                                                   
430         code = le16_to_cpu(*(__le16*)(&zd->rxd    
431         rid_fid = le16_to_cpu(*(__le16*)(&zd->    
432         length = le16_to_cpu(*(__le16*)(&zd->r    
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) != ZD120    
438                 return -EINVAL;                   
439                                                   
440         /* Not enough buffer for allocating da    
441         if (riddatalen != (length - 4)) {         
442                 dev_dbg(&zd->usb->dev, "riddat    
443                     riddatalen, zd->rxlen, len    
444                 return -ENODATA;                  
445         }                                         
446                                                   
447         zd->rxdatas = 0;                          
448         /* Issue SetRxRid commnd */               
449         err = zd1201_docmd(zd, ZD1201_CMDCODE_    
450         if (err)                                  
451                 return err;                       
452                                                   
453         /* Receive RID record from resource pa    
454         wait_event_interruptible(zd->rxdataq,     
455         if (!zd->rxlen)                           
456                 return -EIO;                      
457                                                   
458         if (zd->rxdata[zd->rxlen - 1] != ZD120    
459                 dev_dbg(&zd->usb->dev, "Packet    
460                     zd->rxdata[zd->rxlen-1]);     
461                 return -EINVAL;                   
462         }                                         
463                                                   
464         /* Set the data pointer and received d    
465         pdata = zd->rxdata;                       
466         length = zd->rxlen;                       
467                                                   
468         do {                                      
469                 int actual_length;                
470                                                   
471                 actual_length = (length > 64)     
472                                                   
473                 if (pdata[0] != 0x3) {            
474                         dev_dbg(&zd->usb->dev,    
475                             pdata[0]);            
476                         return -EINVAL;           
477                 }                                 
478                                                   
479                 if (actual_length != 64) {        
480                         /* Trim the last packe    
481                         actual_length--;          
482                 }                                 
483                                                   
484                 /* Skip the 4 bytes header (RI    
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_    
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,    
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    
519                                                   
520         len += 4;                       /* fir    
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_mas    
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]     
542                         *(__le16*)&request[6]     
543                         memcpy(request+8, buf,    
544                         buf += reqlen-4;          
545                 } else {                          
546                         memcpy(request+4, buf,    
547                         buf += reqlen;            
548                 }                                 
549                                                   
550                 len -= reqlen;                    
551                                                   
552                 usb_fill_bulk_urb(urb, zd->usb    
553                     zd->endp_out2), request, 1    
554                 err = usb_submit_urb(urb, gfp_    
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(ZD12    
568         *((__le16*)&request[4]) =                 
569             cpu_to_le16(ZD1201_CMDCODE_ACCESS|    
570         *((__le16*)&request[6]) = cpu_to_le16(    
571         *((__le16*)&request[8]) = cpu_to_le16(    
572         *((__le16*)&request[10]) = cpu_to_le16    
573         usb_fill_bulk_urb(urb, zd->usb, usb_sn    
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->r    
581                 if (!zd->rxlen || le16_to_cpu(    
582                         dev_dbg(&zd->usb->dev,    
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 zd    
594 {                                                 
595         int err;                                  
596         __le16 zdval;                             
597                                                   
598         err = zd1201_getconfig(zd, rid, &zdval    
599         if (err)                                  
600                 return err;                       
601         *val = le16_to_cpu(zdval);                
602         return 0;                                 
603 }                                                 
604                                                   
605 static inline int zd1201_setconfig16(struct zd    
606 {                                                 
607         __le16 zdval = cpu_to_le16(val);          
608         return (zd1201_setconfig(zd, rid, &zdv    
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_KE    
619         if (!buffer)                              
620                 return -ENOMEM;                   
621                                                   
622         usb_fill_bulk_urb(zd->rx_urb, zd->usb,    
623             usb_rcvbulkpipe(zd->usb, zd->endp_    
624             zd1201_usbrx, zd);                    
625                                                   
626         err = usb_submit_urb(zd->rx_urb, GFP_K    
627         if (err)                                  
628                 goto err_buffer;                  
629                                                   
630         err = zd1201_docmd(zd, ZD1201_CMDCODE_    
631         if (err)                                  
632                 goto err_urb;                     
633                                                   
634         err = zd1201_getconfig(zd, ZD1201_RID_    
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_    
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    
657  *      toggled in promisc (aka monitor) mode.    
658  *      (It works a number of times, but will     
659  *      So we turn it of before disabling and     
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_    
669         if (!err)                                 
670                 zd->mac_enabled = 1;              
671                                                   
672         if (zd->monitor)                          
673                 err = zd1201_setconfig16(zd, Z    
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, Z    
686                 if (err)                          
687                         return err;               
688         }                                         
689                                                   
690         err = zd1201_docmd(zd, ZD1201_CMDCODE_    
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    
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_OPENSYS    
714         val |= ZD1201_CNFAUTHENTICATION_SHARED    
715         err = zd1201_setconfig16(zd, ZD1201_RI    
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, ZD1    
723                     IW_ESSID_MAX_SIZE+2, 1);      
724                 if (err)                          
725                         return err;               
726         } else {        /* AP */                  
727                 err = zd1201_setconfig(zd, ZD1    
728                     IW_ESSID_MAX_SIZE+2, 1);      
729                 if (err)                          
730                         return err;               
731         }                                         
732                                                   
733         err = zd1201_setconfig(zd, ZD1201_RID_    
734             zd->dev->dev_addr, zd->dev->addr_l    
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 *    
747 {                                                 
748         struct zd1201 *zd = (struct zd1201 *)d    
749                                                   
750         /* Start MAC with wildcard if no essid    
751         if (!zd->mac_enabled)                     
752                 zd1201_join(zd, zd->essid, zd-    
753         netif_start_queue(dev);                   
754                                                   
755         return 0;                                 
756 }                                                 
757                                                   
758 static int zd1201_net_stop(struct net_device *    
759 {                                                 
760         netif_stop_queue(dev);                    
761         return 0;                                 
762 }                                                 
763                                                   
764 /*                                                
765         RFC 1042 encapsulates Ethernet frames     
766         by prefixing them with 0xaa, 0xaa, 0x0    
767         (0x00, 0x00, 0x00). Zd requires an add    
768         of ethernet addresses, length of the s    
769         and a command byte (which is nul for t    
770                                                   
771         tx frame (from Wlan NG):                  
772         RFC 1042:                                 
773                 llc             0xAA 0xAA 0x03    
774                 snap            0x00 0x00 0x00    
775                 type            2 bytes, Ether    
776                 payload         (minus eth hea    
777         Zydas specific:                           
778                 padding         1B if (skb->le    
779                 Eth MAC addr    12 bytes, Ethe    
780                 length          2 bytes, RFC 1    
781                                 (llc+snap+type    
782                 zd              1 null byte, z    
783  */                                               
784 static int zd1201_hard_start_xmit(struct sk_bu    
785 {                                                 
786         struct zd1201 *zd = (struct zd1201 *)d    
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,     
811         if (pad)                                  
812                 txbuf[skb->len-12+6]=0;           
813         skb_copy_from_linear_data(skb, txbuf +    
814         *(__be16*)&txbuf[skb->len+6+pad] = hto    
815         txbuf[txbuflen-1] = 0;                    
816                                                   
817         usb_fill_bulk_urb(urb, zd->usb, usb_sn    
818             txbuf, txbuflen, zd1201_usbtx, zd)    
819                                                   
820         err = usb_submit_urb(zd->tx_urb, GFP_A    
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_devic    
835 {                                                 
836         struct zd1201 *zd = (struct zd1201 *)d    
837                                                   
838         if (!zd)                                  
839                 return;                           
840         dev_warn(&zd->usb->dev, "%s: TX timeou    
841             dev->name);                           
842         usb_unlink_urb(zd->tx_urb);               
843         zd->stats.tx_errors++;                    
844         /* Restart the timeout to quiet the wa    
845         dev->trans_start = jiffies;               
846 }                                                 
847                                                   
848 static int zd1201_set_mac_address(struct net_d    
849 {                                                 
850         struct sockaddr *addr = p;                
851         struct zd1201 *zd = (struct zd1201 *)d    
852         int err;                                  
853                                                   
854         if (!zd)                                  
855                 return -ENODEV;                   
856                                                   
857         err = zd1201_setconfig(zd, ZD1201_RID_    
858             addr->sa_data, dev->addr_len, 1);     
859         if (err)                                  
860                 return err;                       
861         memcpy(dev->dev_addr, addr->sa_data, d    
862                                                   
863         return zd1201_mac_reset(zd);              
864 }                                                 
865                                                   
866 static struct net_device_stats *zd1201_get_sta    
867 {                                                 
868         struct zd1201 *zd = (struct zd1201 *)d    
869                                                   
870         return &zd->stats;                        
871 }                                                 
872                                                   
873 static struct iw_statistics *zd1201_get_wirele    
874 {                                                 
875         struct zd1201 *zd = (struct zd1201 *)d    
876                                                   
877         return &zd->iwstats;                      
878 }                                                 
879                                                   
880 static void zd1201_set_multicast(struct net_de    
881 {                                                 
882         struct zd1201 *zd = (struct zd1201 *)d    
883         struct dev_mc_list *mc = dev->mc_list;    
884         unsigned char reqbuf[ETH_ALEN*ZD1201_M    
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->    
892                 mc = mc->next;                    
893         }                                         
894         zd1201_setconfig(zd, ZD1201_RID_CNFGRO    
895             dev->mc_count*ETH_ALEN, 0);           
896                                                   
897 }                                                 
898                                                   
899 static int zd1201_config_commit(struct net_dev    
900     struct iw_request_info *info, struct iw_po    
901 {                                                 
902         struct zd1201 *zd = (struct zd1201 *)d    
903                                                   
904         return zd1201_mac_reset(zd);              
905 }                                                 
906                                                   
907 static int zd1201_get_name(struct net_device *    
908     struct iw_request_info *info, char *name,     
909 {                                                 
910         strcpy(name, "IEEE 802.11b");             
911         return 0;                                 
912 }                                                 
913                                                   
914 static int zd1201_set_freq(struct net_device *    
915     struct iw_request_info *info, struct iw_fr    
916 {                                                 
917         struct zd1201 *zd = (struct zd1201 *)d    
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-240    
928         }                                         
929                                                   
930         err = zd1201_setconfig16(zd, ZD1201_RI    
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 *    
940     struct iw_request_info *info, struct iw_fr    
941 {                                                 
942         struct zd1201 *zd = (struct zd1201 *)d    
943         short channel;                            
944         int err;                                  
945                                                   
946         err = zd1201_getconfig16(zd, ZD1201_RI    
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 *    
956     struct iw_request_info *info, __u32 *mode,    
957 {                                                 
958         struct zd1201 *zd = (struct zd1201 *)d    
959         short porttype, monitor = 0;              
960         unsigned char buffer[IW_ESSID_MAX_SIZE    
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_RI    
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    
977                         /* Make sure we are no    
978                            setting an 'impossi    
979                            (otherwise we mess     
980                          */                       
981                         zd1201_join(zd, "\0-*#    
982                         /* Put port in pIBSS *    
983                 case 8: /* No pseudo-IBSS in w    
984                         porttype = ZD1201_PORT    
985                         break;                    
986                 case IW_MODE_ADHOC:               
987                         porttype = ZD1201_PORT    
988                         break;                    
989                 case IW_MODE_INFRA:               
990                         porttype = ZD1201_PORT    
991                         break;                    
992                 default:                          
993                         return -EINVAL;           
994         }                                         
995                                                   
996         err = zd1201_setconfig16(zd, ZD1201_RI    
997         if (err)                                  
998                 return err;                       
999         if (zd->monitor && !monitor) {            
1000                         zd1201_disable(zd);      
1001                         *(__le16 *)buffer = c    
1002                         memcpy(buffer+2, zd->    
1003                         err = zd1201_setconfi    
1004                             buffer, IW_ESSID_    
1005                         if (err)                 
1006                                 return err;      
1007         }                                        
1008         zd->monitor = monitor;                   
1009         /* If monitor mode is set we don't ac    
1010          * is done during mac reset anyway (s    
1011          */                                      
1012         zd1201_mac_reset(zd);                    
1013                                                  
1014         return 0;                                
1015 }                                                
1016                                                  
1017 static int zd1201_get_mode(struct net_device     
1018     struct iw_request_info *info, __u32 *mode    
1019 {                                                
1020         struct zd1201 *zd = (struct zd1201 *)    
1021         short porttype;                          
1022         int err;                                 
1023                                                  
1024         err = zd1201_getconfig16(zd, ZD1201_R    
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_REPEA    
1036                         break;                   
1037                 case ZD1201_PORTTYPE_PSEUDOIB    
1038                         *mode = 8;/* No Pseud    
1039                         break;                   
1040                 case ZD1201_PORTTYPE_AP:         
1041                         *mode = IW_MODE_MASTE    
1042                         break;                   
1043                 default:                         
1044                         dev_dbg(&zd->usb->dev    
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    
1055     struct iw_request_info *info, struct iw_p    
1056 {                                                
1057         struct iw_range *range = (struct iw_r    
1058                                                  
1059         wrq->length = sizeof(struct iw_range)    
1060         memset(range, 0, sizeof(struct iw_ran    
1061         range->we_version_compiled = WIRELESS    
1062         range->we_version_source = WIRELESS_E    
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_N    
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    
1089  *      for it, and we never get an actual re    
1090  *      a poll. Therefore we 'assume' that th    
1091  *      the stats after asking the bssid.        
1092  */                                              
1093 static int zd1201_get_wap(struct net_device *    
1094     struct iw_request_info *info, struct sock    
1095 {                                                
1096         struct zd1201 *zd = (struct zd1201 *)    
1097         unsigned char buffer[6];                 
1098                                                  
1099         if (!zd1201_getconfig(zd, ZD1201_RID_    
1100                 /* Unfortunately the quality     
1101                    they seem to be accumulato    
1102                    read them, unless we poll     
1103                    use them                      
1104                  */                              
1105                 /*zd->iwstats.qual.qual = le1    
1106                 zd->iwstats.qual.level = le16    
1107                 /*zd->iwstats.qual.noise = le    
1108                 zd->iwstats.qual.updated = 2;    
1109         }                                        
1110                                                  
1111         return zd1201_getconfig(zd, ZD1201_RI    
1112 }                                                
1113                                                  
1114 static int zd1201_set_scan(struct net_device     
1115     struct iw_request_info *info, struct iw_p    
1116 {                                                
1117         /* We do everything in get_scan */       
1118         return 0;                                
1119 }                                                
1120                                                  
1121 static int zd1201_get_scan(struct net_device     
1122     struct iw_request_info *info, struct iw_p    
1123 {                                                
1124         struct zd1201 *zd = (struct zd1201 *)    
1125         int err, i, j, enabled_save;             
1126         struct iw_event iwe;                     
1127         char *cev = extra;                       
1128         char *end_buf = extra + IW_SCAN_MAX_D    
1129                                                  
1130         /* No scanning in AP mode */             
1131         if (zd->ap)                              
1132                 return -EOPNOTSUPP;              
1133                                                  
1134         /* Scan doesn't seem to work if disab    
1135         enabled_save = zd->mac_enabled;          
1136         zd1201_enable(zd);                       
1137                                                  
1138         zd->rxdatas = 0;                         
1139         err = zd1201_docmd(zd, ZD1201_CMDCODE    
1140              ZD1201_INQ_SCANRESULTS, 0, 0);      
1141         if (err)                                 
1142                 return err;                      
1143                                                  
1144         wait_event_interruptible(zd->rxdataq,    
1145         if (!zd->rxlen)                          
1146                 return -EIO;                     
1147                                                  
1148         if (le16_to_cpu(*(__le16*)&zd->rxdata    
1149                 return -EIO;                     
1150                                                  
1151         for(i=8; i<zd->rxlen; i+=62) {           
1152                 iwe.cmd = SIOCGIWAP;             
1153                 iwe.u.ap_addr.sa_family = ARP    
1154                 memcpy(iwe.u.ap_addr.sa_data,    
1155                 cev = iwe_stream_add_event(ce    
1156                                                  
1157                 iwe.cmd = SIOCGIWESSID;          
1158                 iwe.u.data.length = zd->rxdat    
1159                 iwe.u.data.flags = 1;            
1160                 cev = iwe_stream_add_point(ce    
1161                                                  
1162                 iwe.cmd = SIOCGIWMODE;           
1163                 if (zd->rxdata[i+14]&0x01)       
1164                         iwe.u.mode = IW_MODE_    
1165                 else                             
1166                         iwe.u.mode = IW_MODE_    
1167                 cev = iwe_stream_add_event(ce    
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(ce    
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->    
1178                         iwe.u.bitrate.value =    
1179                         cev=iwe_stream_add_ev    
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    
1187                 else                             
1188                         iwe.u.data.flags = IW    
1189                 cev = iwe_stream_add_point(ce    
1190                                                  
1191                 iwe.cmd = IWEVQUAL;              
1192                 iwe.u.qual.qual = zd->rxdata[    
1193                 iwe.u.qual.noise= zd->rxdata[    
1194                 iwe.u.qual.level = (256+zd->r    
1195                 iwe.u.qual.updated = 7;          
1196                 cev = iwe_stream_add_event(ce    
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    
1209     struct iw_request_info *info, struct iw_p    
1210 {                                                
1211         struct zd1201 *zd = (struct zd1201 *)    
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_SIZ    
1219         memcpy(zd->essid, essid, data->length    
1220         return zd1201_join(zd, zd->essid, zd-    
1221 }                                                
1222                                                  
1223 static int zd1201_get_essid(struct net_device    
1224     struct iw_request_info *info, struct iw_p    
1225 {                                                
1226         struct zd1201 *zd = (struct zd1201 *)    
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     
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     
1245     struct iw_request_info *info, struct iw_p    
1246 {                                                
1247         struct zd1201 *zd = (struct zd1201 *)    
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    
1267                 rate |= rate-1;                  
1268         }                                        
1269                                                  
1270         err = zd1201_setconfig16(zd, ZD1201_R    
1271         if (err)                                 
1272                 return err;                      
1273                                                  
1274         return zd1201_mac_reset(zd);             
1275 }                                                
1276                                                  
1277 static int zd1201_get_rate(struct net_device     
1278     struct iw_request_info *info, struct iw_p    
1279 {                                                
1280         struct zd1201 *zd = (struct zd1201 *)    
1281         short rate;                              
1282         int err;                                 
1283                                                  
1284         err = zd1201_getconfig16(zd, ZD1201_R    
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 *    
1311     struct iw_param *rts, char *extra)           
1312 {                                                
1313         struct zd1201 *zd = (struct zd1201 *)    
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_R    
1325         if (err)                                 
1326                 return err;                      
1327         return zd1201_mac_reset(zd);             
1328 }                                                
1329                                                  
1330 static int zd1201_get_rts(struct net_device *    
1331     struct iw_param *rts, char *extra)           
1332 {                                                
1333         struct zd1201 *zd = (struct zd1201 *)    
1334         short rtst;                              
1335         int err;                                 
1336                                                  
1337         err = zd1201_getconfig16(zd, ZD1201_R    
1338         if (err)                                 
1339                 return err;                      
1340         rts->value = rtst;                       
1341         rts->disabled = (rts->value == ZD1201    
1342         rts->fixed = 1;                          
1343                                                  
1344         return 0;                                
1345 }                                                
1346                                                  
1347 static int zd1201_set_frag(struct net_device     
1348     struct iw_param *frag, char *extra)          
1349 {                                                
1350         struct zd1201 *zd = (struct zd1201 *)    
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_R    
1363         if (err)                                 
1364                 return err;                      
1365         return zd1201_mac_reset(zd);             
1366 }                                                
1367                                                  
1368 static int zd1201_get_frag(struct net_device     
1369     struct iw_param *frag, char *extra)          
1370 {                                                
1371         struct zd1201 *zd = (struct zd1201 *)    
1372         short fragt;                             
1373         int err;                                 
1374                                                  
1375         err = zd1201_getconfig16(zd, ZD1201_R    
1376         if (err)                                 
1377                 return err;                      
1378         frag->value = fragt;                     
1379         frag->disabled = (frag->value == ZD12    
1380         frag->fixed = 1;                         
1381                                                  
1382         return 0;                                
1383 }                                                
1384                                                  
1385 static int zd1201_set_retry(struct net_device    
1386     struct iw_request_info *info, struct iw_p    
1387 {                                                
1388         return 0;                                
1389 }                                                
1390                                                  
1391 static int zd1201_get_retry(struct net_device    
1392     struct iw_request_info *info, struct iw_p    
1393 {                                                
1394         return 0;                                
1395 }                                                
1396                                                  
1397 static int zd1201_set_encode(struct net_devic    
1398     struct iw_request_info *info, struct iw_p    
1399 {                                                
1400         struct zd1201 *zd = (struct zd1201 *)    
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,Z    
1410                 if (err)                         
1411                         return err;              
1412         } else {                                 
1413                 err = zd1201_setconfig16(zd,     
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,     
1423         if (err)                                 
1424                 return err;                      
1425         zd->encode_keylen[i] = erq->length;      
1426         memcpy(zd->encode_keys[i], key, erq->    
1427                                                  
1428         i=0;                                     
1429         if (!(erq->flags & IW_ENCODE_DISABLED    
1430                 i |= 0x01;                       
1431                 zd->encode_enabled = 1;          
1432         } else                                   
1433                 zd->encode_enabled = 0;          
1434         if (erq->flags & IW_ENCODE_RESTRICTED    
1435                 i |= 0x02;                       
1436                 zd->encode_restricted = 1;       
1437         } else                                   
1438                 zd->encode_restricted = 0;       
1439         err = zd1201_setconfig16(zd, ZD1201_R    
1440         if (err)                                 
1441                 return err;                      
1442                                                  
1443         if (zd->encode_enabled)                  
1444                 i = ZD1201_CNFAUTHENTICATION_    
1445         else                                     
1446                 i = ZD1201_CNFAUTHENTICATION_    
1447         err = zd1201_setconfig16(zd, ZD1201_R    
1448         if (err)                                 
1449                 return err;                      
1450                                                  
1451         return zd1201_mac_reset(zd);             
1452 }                                                
1453                                                  
1454 static int zd1201_get_encode(struct net_devic    
1455     struct iw_request_info *info, struct iw_p    
1456 {                                                
1457         struct zd1201 *zd = (struct zd1201 *)    
1458         short i;                                 
1459         int err;                                 
1460                                                  
1461         if (zd->encode_enabled)                  
1462                 erq->flags = IW_ENCODE_ENABLE    
1463         else                                     
1464                 erq->flags = IW_ENCODE_DISABL    
1465         if (zd->encode_restricted)               
1466                 erq->flags |= IW_ENCODE_RESTR    
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,     
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->    
1483                                                  
1484         return 0;                                
1485 }                                                
1486                                                  
1487 static int zd1201_set_power(struct net_device    
1488     struct iw_request_info *info, struct iw_p    
1489 {                                                
1490         struct zd1201 *zd = (struct zd1201 *)    
1491         short enabled, duration, level;          
1492         int err;                                 
1493                                                  
1494         enabled = vwrq->disabled ? 0 : 1;        
1495         if (enabled) {                           
1496                 if (vwrq->flags & IW_POWER_PE    
1497                         duration = vwrq->valu    
1498                         err = zd1201_setconfi    
1499                             ZD1201_RID_CNFMAX    
1500                         if (err)                 
1501                                 return err;      
1502                         goto out;                
1503                 }                                
1504                 if (vwrq->flags & IW_POWER_TI    
1505                         err = zd1201_getconfi    
1506                             ZD1201_RID_CNFMAX    
1507                         if (err)                 
1508                                 return err;      
1509                         level = vwrq->value *    
1510                         if (level > 4)           
1511                                 level = 4;       
1512                         if (level < 0)           
1513                                 level = 0;       
1514                         err = zd1201_setconfi    
1515                             level);              
1516                         if (err)                 
1517                                 return err;      
1518                         goto out;                
1519                 }                                
1520                 return -EINVAL;                  
1521         }                                        
1522 out:                                             
1523         return zd1201_setconfig16(zd, ZD1201_    
1524 }                                                
1525                                                  
1526 static int zd1201_get_power(struct net_device    
1527     struct iw_request_info *info, struct iw_p    
1528 {                                                
1529         struct zd1201 *zd = (struct zd1201 *)    
1530         short enabled, level, duration;          
1531         int err;                                 
1532                                                  
1533         err = zd1201_getconfig16(zd, ZD1201_R    
1534         if (err)                                 
1535                 return err;                      
1536         err = zd1201_getconfig16(zd, ZD1201_R    
1537         if (err)                                 
1538                 return err;                      
1539         err = zd1201_getconfig16(zd, ZD1201_R    
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_PE    
1545                         vwrq->value = duratio    
1546                         vwrq->flags = IW_POWE    
1547                 } else {                         
1548                         vwrq->value = duratio    
1549                         vwrq->flags = IW_POWE    
1550                 }                                
1551         }                                        
1552         if (vwrq->flags & IW_POWER_MODE) {       
1553                 if (enabled && level)            
1554                         vwrq->flags = IW_POWE    
1555                 else                             
1556                         vwrq->flags = IW_POWE    
1557         }                                        
1558                                                  
1559         return 0;                                
1560 }                                                
1561                                                  
1562                                                  
1563 static const iw_handler zd1201_iw_handler[] =    
1564 {                                                
1565         (iw_handler) zd1201_config_commit,       
1566         (iw_handler) zd1201_get_name,            
1567         (iw_handler) NULL,                       
1568         (iw_handler) NULL,                       
1569         (iw_handler) zd1201_set_freq,            
1570         (iw_handler) zd1201_get_freq,            
1571         (iw_handler) zd1201_set_mode,            
1572         (iw_handler) zd1201_get_mode,            
1573         (iw_handler) NULL,                       
1574         (iw_handler) NULL,                       
1575         (iw_handler) NULL,                       
1576         (iw_handler) zd1201_get_range,           
1577         (iw_handler) NULL,                       
1578         (iw_handler) NULL,                       
1579         (iw_handler) NULL,                       
1580         (iw_handler) NULL,                       
1581         (iw_handler) NULL,                       
1582         (iw_handler) NULL,                       
1583         (iw_handler) NULL,                       
1584         (iw_handler) NULL,                       
1585         (iw_handler) NULL/*zd1201_set_wap*/,     
1586         (iw_handler) zd1201_get_wap,             
1587         (iw_handler) NULL,                       
1588         (iw_handler) NULL,                       
1589         (iw_handler) zd1201_set_scan,            
1590         (iw_handler) zd1201_get_scan,            
1591         (iw_handler) zd1201_set_essid,           
1592         (iw_handler) zd1201_get_essid,           
1593         (iw_handler) NULL,                       
1594         (iw_handler) zd1201_get_nick,            
1595         (iw_handler) NULL,                       
1596         (iw_handler) NULL,                       
1597         (iw_handler) zd1201_set_rate,            
1598         (iw_handler) zd1201_get_rate,            
1599         (iw_handler) zd1201_set_rts,             
1600         (iw_handler) zd1201_get_rts,             
1601         (iw_handler) zd1201_set_frag,            
1602         (iw_handler) zd1201_get_frag,            
1603         (iw_handler) NULL,                       
1604         (iw_handler) NULL,                       
1605         (iw_handler) zd1201_set_retry,           
1606         (iw_handler) zd1201_get_retry,           
1607         (iw_handler) zd1201_set_encode,          
1608         (iw_handler) zd1201_get_encode,          
1609         (iw_handler) zd1201_set_power,           
1610         (iw_handler) zd1201_get_power,           
1611 };                                               
1612                                                  
1613 static int zd1201_set_hostauth(struct net_dev    
1614     struct iw_request_info *info, struct iw_p    
1615 {                                                
1616         struct zd1201 *zd = (struct zd1201 *)    
1617                                                  
1618         if (!zd->ap)                             
1619                 return -EOPNOTSUPP;              
1620                                                  
1621         return zd1201_setconfig16(zd, ZD1201_    
1622 }                                                
1623                                                  
1624 static int zd1201_get_hostauth(struct net_dev    
1625     struct iw_request_info *info, struct iw_p    
1626 {                                                
1627         struct zd1201 *zd = (struct zd1201 *)    
1628         short hostauth;                          
1629         int err;                                 
1630                                                  
1631         if (!zd->ap)                             
1632                 return -EOPNOTSUPP;              
1633                                                  
1634         err = zd1201_getconfig16(zd, ZD1201_R    
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     
1644     struct iw_request_info *info, struct sock    
1645 {                                                
1646         struct zd1201 *zd = (struct zd1201 *)    
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=    
1654         *(short*)(buffer+8) = 0;                 
1655                                                  
1656         return zd1201_setconfig(zd, ZD1201_RI    
1657 }                                                
1658                                                  
1659 static int zd1201_set_maxassoc(struct net_dev    
1660     struct iw_request_info *info, struct iw_p    
1661 {                                                
1662         struct zd1201 *zd = (struct zd1201 *)    
1663         int err;                                 
1664                                                  
1665         if (!zd->ap)                             
1666                 return -EOPNOTSUPP;              
1667                                                  
1668         err = zd1201_setconfig16(zd, ZD1201_R    
1669         if (err)                                 
1670                 return err;                      
1671         return 0;                                
1672 }                                                
1673                                                  
1674 static int zd1201_get_maxassoc(struct net_dev    
1675     struct iw_request_info *info, struct iw_p    
1676 {                                                
1677         struct zd1201 *zd = (struct zd1201 *)    
1678         short maxassoc;                          
1679         int err;                                 
1680                                                  
1681         if (!zd->ap)                             
1682                 return -EOPNOTSUPP;              
1683                                                  
1684         err = zd1201_getconfig16(zd, ZD1201_R    
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_handle    
1694         (iw_handler) zd1201_set_hostauth,        
1695         (iw_handler) zd1201_get_hostauth,        
1696         (iw_handler) zd1201_auth_sta,            
1697         (iw_handler) NULL,                       
1698         (iw_handler) zd1201_set_maxassoc,        
1699         (iw_handler) zd1201_get_maxassoc,        
1700 };                                               
1701                                                  
1702 static const struct iw_priv_args zd1201_priva    
1703         { ZD1201SIWHOSTAUTH, IW_PRIV_TYPE_INT    
1704             IW_PRIV_TYPE_NONE, "sethostauth"     
1705         { ZD1201GIWHOSTAUTH, IW_PRIV_TYPE_NON    
1706             IW_PRIV_TYPE_INT | IW_PRIV_SIZE_F    
1707         { ZD1201SIWAUTHSTA, IW_PRIV_TYPE_ADDR    
1708             IW_PRIV_TYPE_NONE, "authstation"     
1709         { ZD1201SIWMAXASSOC, IW_PRIV_TYPE_INT    
1710             IW_PRIV_TYPE_NONE, "setmaxassoc"     
1711         { ZD1201GIWMAXASSOC, IW_PRIV_TYPE_NON    
1712             IW_PRIV_TYPE_INT | IW_PRIV_SIZE_F    
1713 };                                               
1714                                                  
1715 static const struct iw_handler_def zd1201_iw_    
1716         .num_standard           = ARRAY_SIZE(    
1717         .num_private            = ARRAY_SIZE(    
1718         .num_private_args       = ARRAY_SIZE(    
1719         .standard               = (iw_handler    
1720         .private                = (iw_handler    
1721         .private_args           = (struct iw_    
1722         .get_wireless_stats     = zd1201_get_    
1723 };                                               
1724                                                  
1725 static int zd1201_probe(struct usb_interface     
1726                         const struct usb_devi    
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), G    
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 fi    
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_KER    
1755         zd->tx_urb = usb_alloc_urb(0, GFP_KER    
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_R    
1765         if (err)                                 
1766                 goto err_start;                  
1767                                                  
1768         err = zd1201_setconfig16(zd, ZD1201_R    
1769             ZD1201_RATEB1 | ZD1201_RATEB2 | Z    
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_    
1783         zd->dev->hard_start_xmit = zd1201_har    
1784         zd->dev->watchdog_timeo = ZD1201_TX_T    
1785         zd->dev->tx_timeout = zd1201_tx_timeo    
1786         zd->dev->set_multicast_list = zd1201_    
1787         zd->dev->set_mac_address = zd1201_set    
1788         strcpy(zd->dev->name, "wlan%d");         
1789                                                  
1790         err = zd1201_getconfig(zd, ZD1201_RID    
1791             zd->dev->dev_addr, zd->dev->addr_    
1792         if (err)                                 
1793                 goto err_net;                    
1794                                                  
1795         /* Set wildcard essid to match zd->es    
1796         *(__le16 *)buf = cpu_to_le16(0);         
1797         err = zd1201_setconfig(zd, ZD1201_RID    
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_BS    
1806         err = zd1201_setconfig16(zd, ZD1201_R    
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 W    
1816             zd->dev->name);                      
1817                                                  
1818         usb_set_intfdata(interface, zd);         
1819         zd1201_enable(zd);      /* zd1201 lik    
1820         zd1201_disable(zd);     /* interferin    
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,    
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_inte    
1836 {                                                
1837         struct zd1201 *zd=(struct zd1201 *)us    
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,    
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_interfac    
1869                            pm_message_t messa    
1870 {                                                
1871         struct zd1201 *zd = usb_get_intfdata(    
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    
1884 {                                                
1885         struct zd1201 *zd = usb_get_intfdata(    
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);                     
1926                                                  
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