drivers/usb/net/zd1201.c

   1 /*
   2  *      Driver for ZyDAS zd1201 based wireless USB devices.
   3  *
   4  *      Copyright (c) 2004, 2005 Jeroen Vreeken (pe1rxq@amsat.org)
   5  *
   6  *      This program is free software; you can redistribute it and/or
   7  *      modify it under the terms of the GNU General Public License
   8  *      version 2 as published by the Free Software Foundation.
   9  *
  10  *      Parts of this driver have been derived from a wlan-ng version
  11  *      modified by ZyDAS. They also made documentation available, thanks!
  12  *      Copyright (C) 1999 AbsoluteValue Systems, Inc.  All Rights Reserved.
  13  */
  14
  15 #include <linux/module.h>
  16 #include <linux/usb.h>
  17 #include <linux/netdevice.h>
  18 #include <linux/etherdevice.h>
  19 #include <linux/wireless.h>
  20 #include <net/iw_handler.h>
  21 #include <linux/string.h>
  22 #include <linux/if_arp.h>
  23 #include <linux/firmware.h>
  24 #include <ieee802_11.h>
  25 #include "zd1201.h"
  26
  27 static struct usb_device_id zd1201_table[] = {
  28         {USB_DEVICE(0x0586, 0x3400)}, /* Peabird Wireless USB Adapter */
  29         {USB_DEVICE(0x0ace, 0x1201)}, /* ZyDAS ZD1201 Wireless USB Adapter */
  30         {USB_DEVICE(0x050d, 0x6051)}, /* Belkin F5D6051 usb  adapter */
  31         {USB_DEVICE(0x0db0, 0x6823)}, /* MSI UB11B usb  adapter */
  32         {}
  33 };
  34
  35 static int ap = 0;      /* Are we an AP or a normal station? */
  36
  37 #define ZD1201_VERSION  "0.15"
  38
  39 MODULE_AUTHOR("Jeroen Vreeken <pe1rxq@amsat.org>");
  40 MODULE_DESCRIPTION("Driver for ZyDAS ZD1201 based USB Wireless adapters");
  41 MODULE_VERSION(ZD1201_VERSION);
  42 MODULE_LICENSE("GPL");
  43 module_param(ap, int, 0);
  44 MODULE_PARM_DESC(ap, "If non-zero Access Point firmware will be loaded");
  45 MODULE_DEVICE_TABLE(usb, zd1201_table);
  46
  47
  48 int zd1201_fw_upload(struct usb_device *dev, int apfw)
  49 {
  50         const struct firmware *fw_entry;
  51         char* data;
  52         unsigned long len;
  53         int err;
  54         unsigned char ret;
  55         char *buf;
  56         char *fwfile;
  57
  58         if (apfw)
  59                 fwfile = "zd1201-ap.fw";
  60         else
  61                 fwfile = "zd1201.fw";
  62
  63         err = request_firmware(&fw_entry, fwfile, &dev->dev);
  64         if (err) {
  65                 dev_err(&dev->dev, "Failed to load %s firmware file!\n", fwfile);
  66                 dev_err(&dev->dev, "Make sure the hotplug firmware loader is installed.\n");
  67                 dev_err(&dev->dev, "Goto http://linux-lc100020.sourceforge.net for more info\n");
  68                 return err;
  69         }
  70
  71         data = fw_entry->data;
  72         len = fw_entry->size;
  73
  74         buf = kmalloc(1024, GFP_ATOMIC);
  75         if (!buf)
  76                 goto exit;
  77
  78         while (len > 0) {
  79                 int translen = (len > 1024) ? 1024 : len;
  80                 memcpy(buf, data, translen);
  81
  82                 err = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), 0,
  83                     USB_DIR_OUT | 0x40, 0, 0, buf, translen,
  84                     ZD1201_FW_TIMEOUT);
  85                 if (err < 0)
  86                         goto exit;
  87
  88                 len -= translen;
  89                 data += translen;
  90         }
  91
  92         err = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), 0x2,
  93             USB_DIR_OUT | 0x40, 0, 0, NULL, 0, ZD1201_FW_TIMEOUT);
  94         if (err < 0)
  95                 goto exit;
  96
  97         err = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), 0x4,
  98             USB_DIR_IN | 0x40, 0,0, &ret, sizeof(ret), ZD1201_FW_TIMEOUT);
  99         if (err < 0)
 100                 goto exit;
 101
 102         if (ret & 0x80) {
 103                 err = -EIO;
 104                 goto exit;
 105         }
 106
 107         err = 0;
 108 exit:
 109         kfree(buf);
 110         release_firmware(fw_entry);
 111         return err;
 112 }
 113
 114 void zd1201_usbfree(struct urb *urb, struct pt_regs *regs)
 115 {
 116         struct zd1201 *zd = urb->context;
 117
 118         switch(urb->status) {
 119                 case -EILSEQ:
 120                 case -ENODEV:
 121                 case -ETIMEDOUT:
 122                 case -ENOENT:
 123                 case -EPIPE:
 124                 case -EOVERFLOW:
 125                 case -ESHUTDOWN:
 126                         dev_warn(&zd->usb->dev, "%s: urb failed: %d\n",
 127                             zd->dev->name, urb->status);
 128         }
 129
 130         kfree(urb->transfer_buffer);
 131         usb_free_urb(urb);
 132         return;
 133 }
 134
 135 /* cmdreq message:
 136         u32 type
 137         u16 cmd
 138         u16 parm0
 139         u16 parm1
 140         u16 parm2
 141         u8  pad[4]
 142
 143         total: 4 + 2 + 2 + 2 + 2 + 4 = 16
 144 */
 145 int zd1201_docmd(struct zd1201 *zd, int cmd, int parm0, int parm1, int parm2)
 146 {
 147         unsigned char *command;
 148         int ret;
 149         struct urb *urb;
 150
 151         command = kmalloc(16, GFP_ATOMIC);
 152         if (!command)
 153                 return -ENOMEM;
 154
 155         *((__le32*)command) = cpu_to_le32(ZD1201_USB_CMDREQ);
 156         *((__le16*)&command[4]) = cpu_to_le16(cmd);
 157         *((__le16*)&command[6]) = cpu_to_le16(parm0);
 158         *((__le16*)&command[8]) = cpu_to_le16(parm1);
 159         *((__le16*)&command[10])= cpu_to_le16(parm2);
 160
 161         urb = usb_alloc_urb(0, GFP_ATOMIC);
 162         if (!urb) {
 163                 kfree(command);
 164                 return -ENOMEM;
 165         }
 166         usb_fill_bulk_urb(urb, zd->usb, usb_sndbulkpipe(zd->usb, zd->endp_out2),
 167              command, 16, zd1201_usbfree, zd);
 168         ret = usb_submit_urb(urb, GFP_ATOMIC);
 169         if (ret) {
 170                 kfree(command);
 171                 usb_free_urb(urb);
 172         }
 173
 174         return ret;
 175 }
 176
 177 /* Callback after sending out a packet */
 178 void zd1201_usbtx(struct urb *urb, struct pt_regs *regs)
 179 {
 180         struct zd1201 *zd = urb->context;
 181         netif_wake_queue(zd->dev);
 182         return;
 183 }
 184
 185 /* Incomming data */
 186 void zd1201_usbrx(struct urb *urb, struct pt_regs *regs)
 187 {
 188         struct zd1201 *zd = urb->context;
 189         int free = 0;
 190         unsigned char *data = urb->transfer_buffer;
 191         struct sk_buff *skb;
 192         unsigned char type;
 193
 194         if (!zd) {
 195                 free = 1;
 196                 goto exit;
 197         }
 198
 199         switch(urb->status) {
 200                 case -EILSEQ:
 201                 case -ENODEV:
 202                 case -ETIMEDOUT:
 203                 case -ENOENT:
 204                 case -EPIPE:
 205                 case -EOVERFLOW:
 206                 case -ESHUTDOWN:
 207                         dev_warn(&zd->usb->dev, "%s: rx urb failed: %d\n",
 208                             zd->dev->name, urb->status);
 209                         free = 1;
 210                         goto exit;
 211         }
 212
 213         if (urb->status != 0 || urb->actual_length == 0)
 214                 goto resubmit;
 215
 216         type = data[0];
 217         if (type == ZD1201_PACKET_EVENTSTAT || type == ZD1201_PACKET_RESOURCE) {
 218                 memcpy(zd->rxdata, data, urb->actual_length);
 219                 zd->rxlen = urb->actual_length;
 220                 zd->rxdatas = 1;
 221                 wake_up(&zd->rxdataq);
 222         }
 223         /* Info frame */
 224         if (type == ZD1201_PACKET_INQUIRE) {
 225                 int i = 0;
 226                 unsigned short infotype, framelen, copylen;
 227                 framelen = le16_to_cpu(*(__le16*)&data[4]);
 228                 infotype = le16_to_cpu(*(__le16*)&data[6]);
 229
 230                 if (infotype == ZD1201_INF_LINKSTATUS) {
 231                         short linkstatus;
 232
 233                         linkstatus = le16_to_cpu(*(__le16*)&data[8]);
 234                         switch(linkstatus) {
 235                                 case 1:
 236                                         netif_carrier_on(zd->dev);
 237                                         break;
 238                                 case 2:
 239                                         netif_carrier_off(zd->dev);
 240                                         break;
 241                                 case 3:
 242                                         netif_carrier_off(zd->dev);
 243                                         break;
 244                                 case 4:
 245                                         netif_carrier_on(zd->dev);
 246                                         break;
 247                                 default:
 248                                         netif_carrier_off(zd->dev);
 249                         }
 250                         goto resubmit;
 251                 }
 252                 if (infotype == ZD1201_INF_ASSOCSTATUS) {
 253                         short status = le16_to_cpu(*(__le16*)(data+8));
 254                         int event;
 255                         union iwreq_data wrqu;
 256
 257                         switch (status) {
 258                                 case ZD1201_ASSOCSTATUS_STAASSOC:
 259                                 case ZD1201_ASSOCSTATUS_REASSOC:
 260                                         event = IWEVREGISTERED;
 261                                         break;
 262                                 case ZD1201_ASSOCSTATUS_DISASSOC:
 263                                 case ZD1201_ASSOCSTATUS_ASSOCFAIL:
 264                                 case ZD1201_ASSOCSTATUS_AUTHFAIL:
 265                                 default:
 266                                         event = IWEVEXPIRED;
 267                         }
 268                         memcpy(wrqu.addr.sa_data, data+10, ETH_ALEN);
 269                         wrqu.addr.sa_family = ARPHRD_ETHER;
 270
 271                         /* Send event to user space */
 272                         wireless_send_event(zd->dev, event, &wrqu, NULL);
 273
 274                         goto resubmit;
 275                 }
 276                 if (infotype == ZD1201_INF_AUTHREQ) {
 277                         union iwreq_data wrqu;
 278
 279                         memcpy(wrqu.addr.sa_data, data+8, ETH_ALEN);
 280                         wrqu.addr.sa_family = ARPHRD_ETHER;
 281                         /* There isn't a event that trully fits this request.
 282                            We assume that userspace will be smart enough to
 283                            see a new station being expired and sends back a
 284                            authstation ioctl to authorize it. */
 285                         wireless_send_event(zd->dev, IWEVEXPIRED, &wrqu, NULL);
 286                         goto resubmit;
 287                 }
 288                 /* Other infotypes are handled outside this handler */
 289                 zd->rxlen = 0;
 290                 while (i < urb->actual_length) {
 291                         copylen = le16_to_cpu(*(__le16*)&data[i+2]);
 292                         /* Sanity check, sometimes we get junk */
 293                         if (copylen+zd->rxlen > sizeof(zd->rxdata))
 294                                 break;
 295                         memcpy(zd->rxdata+zd->rxlen, data+i+4, copylen);
 296                         zd->rxlen += copylen;
 297                         i += 64;
 298                 }
 299                 if (i >= urb->actual_length) {
 300                         zd->rxdatas = 1;
 301                         wake_up(&zd->rxdataq);
 302                 }
 303                 goto  resubmit;
 304         }
 305         /* Actual data */
 306         if (data[urb->actual_length-1] == ZD1201_PACKET_RXDATA) {
 307                 int datalen = urb->actual_length-1;
 308                 unsigned short len, fc, seq;
 309                 struct hlist_node *node;
 310
 311                 len = ntohs(*(__be16 *)&data[datalen-2]);
 312                 if (len>datalen)
 313                         len=datalen;
 314                 fc = le16_to_cpu(*(__le16 *)&data[datalen-16]);
 315                 seq = le16_to_cpu(*(__le16 *)&data[datalen-24]);
 316
 317                 if(zd->monitor) {
 318                         if (datalen < 24)
 319                                 goto resubmit;
 320                         if (!(skb = dev_alloc_skb(datalen+24)))
 321                                 goto resubmit;
 322
 323                         memcpy(skb_put(skb, 2), &data[datalen-16], 2);
 324                         memcpy(skb_put(skb, 2), &data[datalen-2], 2);
 325                         memcpy(skb_put(skb, 6), &data[datalen-14], 6);
 326                         memcpy(skb_put(skb, 6), &data[datalen-22], 6);
 327                         memcpy(skb_put(skb, 6), &data[datalen-8], 6);
 328                         memcpy(skb_put(skb, 2), &data[datalen-24], 2);
 329                         memcpy(skb_put(skb, len), data, len);
 330                         skb->dev = zd->dev;
 331                         skb->dev->last_rx = jiffies;
 332                         skb->protocol = eth_type_trans(skb, zd->dev);
 333                         zd->stats.rx_packets++;
 334                         zd->stats.rx_bytes += skb->len;
 335                         netif_rx(skb);
 336                         goto resubmit;
 337                 }
 338
 339                 if ((seq & IEEE802_11_SCTL_FRAG) ||
 340                     (fc & IEEE802_11_FCTL_MOREFRAGS)) {
 341                         struct zd1201_frag *frag = NULL;
 342                         char *ptr;
 343
 344                         if (datalen<14)
 345                                 goto resubmit;
 346                         if ((seq & IEEE802_11_SCTL_FRAG) == 0) {
 347                                 frag = kmalloc(sizeof(struct zd1201_frag*),
 348                                     GFP_ATOMIC);
 349                                 if (!frag)
 350                                         goto resubmit;
 351                                 skb = dev_alloc_skb(IEEE802_11_DATA_LEN +14+2);
 352                                 if (!skb) {
 353                                         kfree(frag);
 354                                         goto resubmit;
 355                                 }
 356                                 frag->skb = skb;
 357                                 frag->seq = seq & IEEE802_11_SCTL_SEQ;
 358                                 skb_reserve(skb, 2);
 359                                 memcpy(skb_put(skb, 12), &data[datalen-14], 12);
 360                                 memcpy(skb_put(skb, 2), &data[6], 2);
 361                                 memcpy(skb_put(skb, len), data+8, len);
 362                                 hlist_add_head(&frag->fnode, &zd->fraglist);
 363                                 goto resubmit;
 364                         }
 365                         hlist_for_each_entry(frag, node, &zd->fraglist, fnode)
 366                                 if(frag->seq == (seq&IEEE802_11_SCTL_SEQ))
 367                                         break;
 368                         if (!frag)
 369                                 goto resubmit;
 370                         skb = frag->skb;
 371                         ptr = skb_put(skb, len);
 372                         if (ptr)
 373                                 memcpy(ptr, data+8, len);
 374                         if (fc & IEEE802_11_FCTL_MOREFRAGS)
 375                                 goto resubmit;
 376                         hlist_del_init(&frag->fnode);
 377                         kfree(frag);
 378                         /* Fallthrough */
 379                 } else {
 380                         if (datalen<14)
 381                                 goto resubmit;
 382                         skb = dev_alloc_skb(len + 14 + 2);
 383                         if (!skb)
 384                                 goto resubmit;
 385                         skb_reserve(skb, 2);
 386                         memcpy(skb_put(skb, 12), &data[datalen-14], 12);
 387                         memcpy(skb_put(skb, 2), &data[6], 2);
 388                         memcpy(skb_put(skb, len), data+8, len);
 389                 }
 390                 skb->dev = zd->dev;
 391                 skb->dev->last_rx = jiffies;
 392                 skb->protocol = eth_type_trans(skb, zd->dev);
 393                 zd->stats.rx_packets++;
 394                 zd->stats.rx_bytes += skb->len;
 395                 netif_rx(skb);
 396         }
 397 resubmit:
 398         memset(data, 0, ZD1201_RXSIZE);
 399
 400         urb->status = 0;
 401         urb->dev = zd->usb;
 402         if(usb_submit_urb(urb, GFP_ATOMIC))
 403                 free = 1;
 404
 405 exit:
 406         if (free) {
 407                 zd->rxlen = 0;
 408                 zd->rxdatas = 1;
 409                 wake_up(&zd->rxdataq);
 410                 kfree(urb->transfer_buffer);
 411         }
 412         return;
 413 }
 414
 415 static int zd1201_getconfig(struct zd1201 *zd, int rid, void *riddata,
 416         unsigned int riddatalen)
 417 {
 418         int err;
 419         int i = 0;
 420         int code;
 421         int rid_fid;
 422         int length;
 423         unsigned char *pdata;
 424
 425         zd->rxdatas = 0;
 426         err = zd1201_docmd(zd, ZD1201_CMDCODE_ACCESS, rid, 0, 0);
 427         if (err)
 428                 return err;
 429
 430         wait_event_interruptible(zd->rxdataq, zd->rxdatas);
 431         if (!zd->rxlen)
 432                 return -EIO;
 433
 434         code = le16_to_cpu(*(__le16*)(&zd->rxdata[4]));
 435         rid_fid = le16_to_cpu(*(__le16*)(&zd->rxdata[6]));
 436         length = le16_to_cpu(*(__le16*)(&zd->rxdata[8]));
 437         if (length > zd->rxlen)
 438                 length = zd->rxlen-6;
 439
 440         /* If access bit is not on, then error */
 441         if ((code & ZD1201_ACCESSBIT) != ZD1201_ACCESSBIT || rid_fid != rid )
 442                 return -EINVAL;
 443
 444         /* Not enough buffer for allocating data */
 445         if (riddatalen != (length - 4)) {
 446                 dev_dbg(&zd->usb->dev, "riddatalen mismatches, expected=%u, (packet=%u) length=%u, rid=0x%04X, rid_fid=0x%04X\n",
 447                     riddatalen, zd->rxlen, length, rid, rid_fid);
 448                 return -ENODATA;
 449         }
 450
 451         zd->rxdatas = 0;
 452         /* Issue SetRxRid commnd */
 453         err = zd1201_docmd(zd, ZD1201_CMDCODE_SETRXRID, rid, 0, length);
 454         if (err)
 455                 return err;
 456
 457         /* Receive RID record from resource packets */
 458         wait_event_interruptible(zd->rxdataq, zd->rxdatas);
 459         if (!zd->rxlen)
 460                 return -EIO;
 461
 462         if (zd->rxdata[zd->rxlen - 1] != ZD1201_PACKET_RESOURCE) {
 463                 dev_dbg(&zd->usb->dev, "Packet type mismatch: 0x%x not 0x3\n",
 464                     zd->rxdata[zd->rxlen-1]);
 465                 return -EINVAL;
 466         }
 467
 468         /* Set the data pointer and received data length */
 469         pdata = zd->rxdata;
 470         length = zd->rxlen;
 471
 472         do {
 473                 int  actual_length;
 474
 475                 actual_length = (length > 64) ? 64 : length;
 476
 477                 if(pdata[0] != 0x3) {
 478                         dev_dbg(&zd->usb->dev, "Rx Resource packet type error: %02X\n",
 479                             pdata[0]);
 480                         return -EINVAL;
 481                 }
 482
 483                 if (actual_length != 64) {
 484                         /* Trim the last packet type byte */
 485                         actual_length--;
 486                 }
 487
 488                 /* Skip the 4 bytes header (RID length and RID) */
 489                 if(i == 0) {
 490                         pdata += 8;
 491                         actual_length -= 8;
 492                 }
 493                 else {
 494                         pdata += 4;
 495                         actual_length -= 4;
 496                 }
 497
 498                 memcpy(riddata, pdata, actual_length);
 499                 riddata += actual_length;
 500                 pdata += actual_length;
 501                 length -= 64;
 502                 i++;
 503         } while (length > 0);
 504
 505         return 0;
 506 }
 507
 508 /*
 509  *      resreq:
 510  *              byte    type
 511  *              byte    sequence
 512  *              u16     reserved
 513  *              byte    data[12]
 514  *      total: 16
 515  */
 516 static int zd1201_setconfig(struct zd1201 *zd, int rid, void *buf, int len, int wait)
 517 {
 518         int err;
 519         unsigned char *request;
 520         int reqlen;
 521         char seq=0;
 522         struct urb *urb;
 523         unsigned int gfp_mask = wait ? GFP_NOIO : GFP_ATOMIC;
 524
 525         len += 4;                       /* first 4 are for header */
 526
 527         zd->rxdatas = 0;
 528         zd->rxlen = 0;
 529         for (seq=0; len > 0; seq++) {
 530                 request = kmalloc(16, gfp_mask);
 531                 if (!request)
 532                         return -ENOMEM;
 533                 urb = usb_alloc_urb(0, gfp_mask);
 534                 if (!urb) {
 535                         kfree(request);
 536                         return -ENOMEM;
 537                 }
 538                 memset(request, 0, 16);
 539                 reqlen = len>12 ? 12 : len;
 540                 request[0] = ZD1201_USB_RESREQ;
 541                 request[1] = seq;
 542                 request[2] = 0;
 543                 request[3] = 0;
 544                 if (request[1] == 0) {
 545                         /* add header */
 546                         *(__le16*)&request[4] = cpu_to_le16((len-2+1)/2);
 547                         *(__le16*)&request[6] = cpu_to_le16(rid);
 548                         memcpy(request+8, buf, reqlen-4);
 549                         buf += reqlen-4;
 550                 } else {
 551                         memcpy(request+4, buf, reqlen);
 552                         buf += reqlen;
 553                 }
 554
 555                 len -= reqlen;
 556
 557                 usb_fill_bulk_urb(urb, zd->usb, usb_sndbulkpipe(zd->usb,
 558                     zd->endp_out2), request, 16, zd1201_usbfree, zd);
 559                 err = usb_submit_urb(urb, gfp_mask);
 560                 if (err)
 561                         goto err;
 562         }
 563
 564         request = kmalloc(16, gfp_mask);
 565         if (!request)
 566                 return -ENOMEM;
 567         urb = usb_alloc_urb(0, gfp_mask);
 568         if (!urb) {
 569                 kfree(request);
 570                 return -ENOMEM;
 571         }
 572         *((__le32*)request) = cpu_to_le32(ZD1201_USB_CMDREQ);
 573         *((__le16*)&request[4]) =
 574             cpu_to_le16(ZD1201_CMDCODE_ACCESS|ZD1201_ACCESSBIT);
 575         *((__le16*)&request[6]) = cpu_to_le16(rid);
 576         *((__le16*)&request[8]) = cpu_to_le16(0);
 577         *((__le16*)&request[10]) = cpu_to_le16(0);
 578         usb_fill_bulk_urb(urb, zd->usb, usb_sndbulkpipe(zd->usb, zd->endp_out2),
 579              request, 16, zd1201_usbfree, zd);
 580         err = usb_submit_urb(urb, gfp_mask);
 581         if (err)
 582                 goto err;
 583
 584         if (wait) {
 585                 wait_event_interruptible(zd->rxdataq, zd->rxdatas);
 586                 if (!zd->rxlen || le16_to_cpu(*(__le16*)&zd->rxdata[6]) != rid) {
 587                         dev_dbg(&zd->usb->dev, "wrong or no RID received\n");
 588                 }
 589         }
 590
 591         return 0;
 592 err:
 593         kfree(request);
 594         usb_free_urb(urb);
 595         return err;
 596 }
 597
 598 static inline int zd1201_getconfig16(struct zd1201 *zd, int rid, short *val)
 599 {
 600         int err;
 601         __le16 zdval;
 602
 603         err = zd1201_getconfig(zd, rid, &zdval, sizeof(__le16));
 604         if (err)
 605                 return err;
 606         *val = le16_to_cpu(zdval);
 607         return 0;
 608 }
 609
 610 static inline int zd1201_setconfig16(struct zd1201 *zd, int rid, short val)
 611 {
 612         __le16 zdval = cpu_to_le16(val);
 613         return (zd1201_setconfig(zd, rid, &zdval, sizeof(__le16), 1));
 614 }
 615
 616 int zd1201_drvr_start(struct zd1201 *zd)
 617 {
 618         int err, i;
 619         short max;
 620         __le16 zdmax;
 621         unsigned char *buffer;
 622
 623         buffer = kmalloc(ZD1201_RXSIZE, GFP_KERNEL);
 624         if (!buffer)
 625                 return -ENOMEM;
 626         memset(buffer, 0, ZD1201_RXSIZE);
 627
 628         usb_fill_bulk_urb(zd->rx_urb, zd->usb,
 629             usb_rcvbulkpipe(zd->usb, zd->endp_in), buffer, ZD1201_RXSIZE,
 630             zd1201_usbrx, zd);
 631
 632         err = usb_submit_urb(zd->rx_urb, GFP_KERNEL);
 633         if (err)
 634                 goto err_buffer;
 635
 636         err = zd1201_docmd(zd, ZD1201_CMDCODE_INIT, 0, 0, 0);
 637         if (err)
 638                 goto err_urb;
 639
 640         err = zd1201_getconfig(zd, ZD1201_RID_CNFMAXTXBUFFERNUMBER, &zdmax,
 641             sizeof(__le16));
 642         if (err)
 643                 goto err_urb;
 644
 645         max = le16_to_cpu(zdmax);
 646         for (i=0; i<max; i++) {
 647                 err = zd1201_docmd(zd, ZD1201_CMDCODE_ALLOC, 1514, 0, 0);
 648                 if (err)
 649                         goto err_urb;
 650         }
 651
 652         return 0;
 653
 654 err_urb:
 655         usb_kill_urb(zd->rx_urb);
 656         return err;
 657 err_buffer:
 658         kfree(buffer);
 659         return err;
 660 }
 661
 662 /*      Magic alert: The firmware doesn't seem to like the MAC state being
 663  *      toggled in promisc (aka monitor) mode.
 664  *      (It works a number of times, but will halt eventually)
 665  *      So we turn it of before disabling and on after enabling if needed.
 666  */
 667 static int zd1201_enable(struct zd1201 *zd)
 668 {
 669         int err;
 670
 671         if (zd->mac_enabled)
 672                 return 0;
 673
 674         err = zd1201_docmd(zd, ZD1201_CMDCODE_ENABLE, 0, 0, 0);
 675         if (!err)
 676                 zd->mac_enabled = 1;
 677
 678         if (zd->monitor)
 679                 err = zd1201_setconfig16(zd, ZD1201_RID_PROMISCUOUSMODE, 1);
 680
 681         return err;
 682 }
 683
 684 static int zd1201_disable(struct zd1201 *zd)
 685 {
 686         int err;
 687
 688         if (!zd->mac_enabled)
 689                 return 0;
 690         if (zd->monitor) {
 691                 err = zd1201_setconfig16(zd, ZD1201_RID_PROMISCUOUSMODE, 0);
 692                 if (err)
 693                         return err;
 694         }
 695
 696         err = zd1201_docmd(zd, ZD1201_CMDCODE_DISABLE, 0, 0, 0);
 697         if (!err)
 698                 zd->mac_enabled = 0;
 699         return err;
 700 }
 701
 702 static int zd1201_mac_reset(struct zd1201 *zd)
 703 {
 704         if (!zd->mac_enabled)
 705                 return 0;
 706         zd1201_disable(zd);
 707         return zd1201_enable(zd);
 708 }
 709
 710 static int zd1201_join(struct zd1201 *zd, char *essid, int essidlen)
 711 {
 712         int err, val;
 713         char buf[IW_ESSID_MAX_SIZE+2];
 714
 715         err = zd1201_disable(zd);
 716         if (err)
 717                 return err;
 718
 719         val = ZD1201_CNFAUTHENTICATION_OPENSYSTEM;
 720         val |= ZD1201_CNFAUTHENTICATION_SHAREDKEY;
 721         err = zd1201_setconfig16(zd, ZD1201_RID_CNFAUTHENTICATION, val);
 722         if (err)
 723                 return err;
 724
 725         *(__le16 *)buf = cpu_to_le16(essidlen);
 726         memcpy(buf+2, essid, essidlen);
 727         if (!zd->ap) {  /* Normal station */
 728                 err = zd1201_setconfig(zd, ZD1201_RID_CNFDESIREDSSID, buf,
 729                     IW_ESSID_MAX_SIZE+2, 1);
 730                 if (err)
 731                         return err;
 732         } else {        /* AP */
 733                 err = zd1201_setconfig(zd, ZD1201_RID_CNFOWNSSID, buf,
 734                     IW_ESSID_MAX_SIZE+2, 1);
 735                 if (err)
 736                         return err;
 737         }
 738
 739         err = zd1201_setconfig(zd, ZD1201_RID_CNFOWNMACADDR,
 740             zd->dev->dev_addr, zd->dev->addr_len, 1);
 741         if (err)
 742                 return err;
 743
 744         err = zd1201_enable(zd);
 745         if (err)
 746                 return err;
 747
 748         msleep(100);
 749         return 0;
 750 }
 751
 752 static int zd1201_net_open(struct net_device *dev)
 753 {
 754         struct zd1201 *zd = (struct zd1201 *)dev->priv;
 755
 756         /* Start MAC with wildcard if no essid set */
 757         if (!zd->mac_enabled)
 758                 zd1201_join(zd, zd->essid, zd->essidlen);
 759         netif_start_queue(dev);
 760
 761         return 0;
 762 }
 763
 764 static int zd1201_net_stop(struct net_device *dev)
 765 {
 766         netif_stop_queue(dev);
 767
 768         return 0;
 769 }
 770
 771 /*
 772         RFC 1042 encapsulates Ethernet frames in 802.11 frames
 773         by prefixing them with 0xaa, 0xaa, 0x03) followed by a SNAP OID of 0
 774         (0x00, 0x00, 0x00). Zd requires an additionnal padding, copy
 775         of ethernet addresses, length of the standard RFC 1042 packet
 776         and a command byte (which is nul for tx).
 777
 778         tx frame (from Wlan NG):
 779         RFC 1042:
 780                 llc             0xAA 0xAA 0x03 (802.2 LLC)
 781                 snap            0x00 0x00 0x00 (Ethernet encapsulated)
 782                 type            2 bytes, Ethernet type field
 783                 payload         (minus eth header)
 784         Zydas specific:
 785                 padding         1B if (skb->len+8+1)%64==0
 786                 Eth MAC addr    12 bytes, Ethernet MAC addresses
 787                 length          2 bytes, RFC 1042 packet length
 788                                 (llc+snap+type+payload)
 789                 zd              1 null byte, zd1201 packet type
 790  */
 791 static int zd1201_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
 792 {
 793         struct zd1201 *zd = (struct zd1201 *)dev->priv;
 794         unsigned char *txbuf = zd->txdata;
 795         int txbuflen, pad = 0, err;
 796         struct urb *urb = zd->tx_urb;
 797
 798         if (!zd->mac_enabled || zd->monitor) {
 799                 zd->stats.tx_dropped++;
 800                 kfree_skb(skb);
 801                 return 0;
 802         }
 803         netif_stop_queue(dev);
 804
 805         txbuflen = skb->len + 8 + 1;
 806         if (txbuflen%64 == 0) {
 807                 pad = 1;
 808                 txbuflen++;
 809         }
 810         txbuf[0] = 0xAA;
 811         txbuf[1] = 0xAA;
 812         txbuf[2] = 0x03;
 813         txbuf[3] = 0x00;        /* rfc1042 */
 814         txbuf[4] = 0x00;
 815         txbuf[5] = 0x00;
 816
 817         memcpy(txbuf+6, skb->data+12, skb->len-12);
 818         if (pad)
 819                 txbuf[skb->len-12+6]=0;
 820         memcpy(txbuf+skb->len-12+6+pad, skb->data, 12);
 821         *(__be16*)&txbuf[skb->len+6+pad] = htons(skb->len-12+6);
 822         txbuf[txbuflen-1] = 0;
 823
 824         usb_fill_bulk_urb(urb, zd->usb, usb_sndbulkpipe(zd->usb, zd->endp_out),
 825             txbuf, txbuflen, zd1201_usbtx, zd);
 826
 827         err = usb_submit_urb(zd->tx_urb, GFP_ATOMIC);
 828         if (err) {
 829                 zd->stats.tx_errors++;
 830                 netif_start_queue(dev);
 831                 return err;
 832         }
 833         zd->stats.tx_packets++;
 834         zd->stats.tx_bytes += skb->len;
 835         dev->trans_start = jiffies;
 836         kfree_skb(skb);
 837
 838         return 0;
 839 }
 840
 841 static void zd1201_tx_timeout(struct net_device *dev)
 842 {
 843         struct zd1201 *zd = (struct zd1201 *)dev->priv;
 844
 845         if (!zd)
 846                 return;
 847         dev_warn(&zd->usb->dev, "%s: TX timeout, shooting down urb\n",
 848             dev->name);
 849         zd->tx_urb->transfer_flags |= URB_ASYNC_UNLINK;
 850         usb_unlink_urb(zd->tx_urb);
 851         zd->stats.tx_errors++;
 852         /* Restart the timeout to quiet the watchdog: */
 853         dev->trans_start = jiffies;
 854 }
 855
 856 static int zd1201_set_mac_address(struct net_device *dev, void *p)
 857 {
 858         struct sockaddr *addr = p;
 859         struct zd1201 *zd = (struct zd1201 *)dev->priv;
 860         int err;
 861
 862         if (!zd)
 863                 return -ENODEV;
 864
 865         err = zd1201_setconfig(zd, ZD1201_RID_CNFOWNMACADDR,
 866             addr->sa_data, dev->addr_len, 1);
 867         if (err)
 868                 return err;
 869         memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
 870
 871         return zd1201_mac_reset(zd);
 872 }
 873
 874 static struct net_device_stats *zd1201_get_stats(struct net_device *dev)
 875 {
 876         struct zd1201 *zd = (struct zd1201 *)dev->priv;
 877
 878         return &zd->stats;
 879 }
 880
 881 static struct iw_statistics *zd1201_get_wireless_stats(struct net_device *dev)
 882 {
 883         struct zd1201 *zd = (struct zd1201 *)dev->priv;
 884
 885         return &zd->iwstats;
 886 }
 887
 888 static void zd1201_set_multicast(struct net_device *dev)
 889 {
 890         struct zd1201 *zd = (struct zd1201 *)dev->priv;
 891         struct dev_mc_list *mc = dev->mc_list;
 892         unsigned char reqbuf[ETH_ALEN*ZD1201_MAXMULTI];
 893         int i;
 894
 895         if (dev->mc_count > ZD1201_MAXMULTI)
 896                 return;
 897
 898         for (i=0; i<dev->mc_count; i++) {
 899                 memcpy(reqbuf+i*ETH_ALEN, mc->dmi_addr, ETH_ALEN);
 900                 mc = mc->next;
 901         }
 902         zd1201_setconfig(zd, ZD1201_RID_CNFGROUPADDRESS, reqbuf,
 903             dev->mc_count*ETH_ALEN, 0);
 904
 905 }
 906
 907 static int zd1201_config_commit(struct net_device *dev,
 908     struct iw_request_info *info, struct iw_point *data, char *essid)
 909 {
 910         struct zd1201 *zd = (struct zd1201 *)dev->priv;
 911
 912         return zd1201_mac_reset(zd);
 913 }
 914
 915 static int zd1201_get_name(struct net_device *dev,
 916     struct iw_request_info *info, char *name, char *extra)
 917 {
 918         strcpy(name, "IEEE 802.11b");
 919
 920         return 0;
 921 }
 922
 923 static int zd1201_set_freq(struct net_device *dev,
 924     struct iw_request_info *info, struct iw_freq *freq, char *extra)
 925 {
 926         struct zd1201 *zd = (struct zd1201 *)dev->priv;
 927         short channel = 0;
 928         int err;
 929
 930         if (freq->e == 0)
 931                 channel = freq->m;
 932         else {
 933                 if (freq->m >= 2482)
 934                         channel = 14;
 935                 if (freq->m >= 2407)
 936                         channel = (freq->m-2407)/5;
 937         }
 938
 939         err = zd1201_setconfig16(zd, ZD1201_RID_CNFOWNCHANNEL, channel);
 940         if (err)
 941                 return err;
 942
 943         zd1201_mac_reset(zd);
 944
 945         return 0;
 946 }
 947
 948 static int zd1201_get_freq(struct net_device *dev,
 949     struct iw_request_info *info, struct iw_freq *freq, char *extra)
 950 {
 951         struct zd1201 *zd = (struct zd1201 *)dev->priv;
 952         short channel;
 953         int err;
 954
 955         err = zd1201_getconfig16(zd, ZD1201_RID_CNFOWNCHANNEL, &channel);
 956         if (err)
 957                 return err;
 958         freq->e = 0;
 959         freq->m = channel;
 960
 961         return 0;
 962 }
 963
 964 static int zd1201_set_mode(struct net_device *dev,
 965     struct iw_request_info *info, __u32 *mode, char *extra)
 966 {
 967         struct zd1201 *zd = (struct zd1201 *)dev->priv;
 968         short porttype, monitor = 0;
 969         unsigned char buffer[IW_ESSID_MAX_SIZE+2];
 970         int err;
 971
 972         if (zd->ap) {
 973                 if (*mode != IW_MODE_MASTER)
 974                         return -EINVAL;
 975                 return 0;
 976         }
 977
 978         err = zd1201_setconfig16(zd, ZD1201_RID_PROMISCUOUSMODE, 0);
 979         if (err)
 980                 return err;
 981         zd->dev->type = ARPHRD_ETHER;
 982         switch(*mode) {
 983                 case IW_MODE_MONITOR:
 984                         monitor = 1;
 985                         zd->dev->type = ARPHRD_IEEE80211;
 986                         /* Make sure we are no longer associated with by
 987                            setting an 'impossible' essid.
 988                            (otherwise we mess up firmware)
 989                          */
 990                         zd1201_join(zd, "\0-*#\0", 5);
 991                         /* Put port in pIBSS */
 992                 case 8: /* No pseudo-IBSS in wireless extensions (yet) */
 993                         porttype = ZD1201_PORTTYPE_PSEUDOIBSS;
 994                         break;
 995                 case IW_MODE_ADHOC:
 996                         porttype = ZD1201_PORTTYPE_IBSS;
 997                         break;
 998                 case IW_MODE_INFRA:
 999                         porttype = ZD1201_PORTTYPE_BSS;
1000                         break;
1001                 default:
1002                         return -EINVAL;
1003         }
1004
1005         err = zd1201_setconfig16(zd, ZD1201_RID_CNFPORTTYPE, porttype);
1006         if (err)
1007                 return err;
1008         if (zd->monitor && !monitor) {
1009                         zd1201_disable(zd);
1010                         *(__le16 *)buffer = cpu_to_le16(zd->essidlen);
1011                         memcpy(buffer+2, zd->essid, zd->essidlen);
1012                         err = zd1201_setconfig(zd, ZD1201_RID_CNFDESIREDSSID,
1013                             buffer, IW_ESSID_MAX_SIZE+2, 1);
1014                         if (err)
1015                                 return err;
1016         }
1017         zd->monitor=monitor;
1018         /* If monitor mode is set we don't actually turn it on here since it
1019          * is done during mac reset anyway (see zd1201_mac_enable).
1020          */
1021
1022         zd1201_mac_reset(zd);
1023
1024         return 0;
1025 }
1026
1027 static int zd1201_get_mode(struct net_device *dev,
1028     struct iw_request_info *info, __u32 *mode, char *extra)
1029 {
1030         struct zd1201 *zd = (struct zd1201 *)dev->priv;
1031         short porttype;
1032         int err;
1033
1034         err = zd1201_getconfig16(zd, ZD1201_RID_CNFPORTTYPE, &porttype);
1035         if (err)
1036                 return err;
1037         switch(porttype) {
1038                 case ZD1201_PORTTYPE_IBSS:
1039                         *mode = IW_MODE_ADHOC;
1040                         break;
1041                 case ZD1201_PORTTYPE_BSS:
1042                         *mode = IW_MODE_INFRA;
1043                         break;
1044                 case ZD1201_PORTTYPE_WDS:
1045                         *mode = IW_MODE_REPEAT;
1046                         break;
1047                 case ZD1201_PORTTYPE_PSEUDOIBSS:
1048                         *mode = 8;/* No Pseudo-IBSS... */
1049                         break;
1050                 case ZD1201_PORTTYPE_AP:
1051                         *mode = IW_MODE_MASTER;
1052                         break;
1053                 default:
1054                         dev_dbg(&zd->usb->dev, "Unknown porttype: %d\n",
1055                             porttype);
1056                         *mode = IW_MODE_AUTO;
1057         }
1058         if (zd->monitor)
1059                 *mode = IW_MODE_MONITOR;
1060
1061         return 0;
1062 }
1063
1064 static int zd1201_get_range(struct net_device *dev,
1065     struct iw_request_info *info, struct iw_point *wrq, char *extra)
1066 {
1067         struct iw_range *range = (struct iw_range *)extra;
1068
1069         wrq->length = sizeof(struct iw_range);
1070         memset(range, 0, sizeof(struct iw_range));
1071         range->we_version_compiled = WIRELESS_EXT;
1072         range->we_version_source = WIRELESS_EXT;
1073
1074         range->max_qual.qual = 128;
1075         range->max_qual.level = 128;
1076         range->max_qual.noise = 128;
1077         range->max_qual.updated = 7;
1078
1079         range->encoding_size[0] = 5;
1080         range->encoding_size[1] = 13;
1081         range->num_encoding_sizes = 2;
1082         range->max_encoding_tokens = ZD1201_NUMKEYS;
1083
1084         range->num_bitrates = 4;
1085         range->bitrate[0] = 1000000;
1086         range->bitrate[1] = 2000000;
1087         range->bitrate[2] = 5500000;
1088         range->bitrate[3] = 11000000;
1089
1090         range->min_rts = 0;
1091         range->min_frag = ZD1201_FRAGMIN;
1092         range->max_rts = ZD1201_RTSMAX;
1093         range->min_frag = ZD1201_FRAGMAX;
1094
1095         return 0;
1096 }
1097
1098 /*      Little bit of magic here: we only get the quality if we poll
1099  *      for it, and we never get an actual request to trigger such
1100  *      a poll. Therefore we 'asume' that the user will soon ask for
1101  *      the stats after asking the bssid.
1102  */
1103 static int zd1201_get_wap(struct net_device *dev,
1104     struct iw_request_info *info, struct sockaddr *ap_addr, char *extra)
1105 {
1106         struct zd1201 *zd = (struct zd1201 *)dev->priv;
1107         unsigned char buffer[6];
1108
1109         if (!zd1201_getconfig(zd, ZD1201_RID_COMMSQUALITY, buffer, 6)) {
1110                 /* Unfortunatly the quality and noise reported is useless.
1111                    they seem to be accumulators that increase until you
1112                    read them, unless we poll on a fixed interval we can't
1113                    use them
1114                  */
1115                 /*zd->iwstats.qual.qual = le16_to_cpu(((__le16 *)buffer)[0]);*/
1116                 zd->iwstats.qual.level = le16_to_cpu(((__le16 *)buffer)[1]);
1117                 /*zd->iwstats.qual.noise = le16_to_cpu(((__le16 *)buffer)[2]);*/
1118                 zd->iwstats.qual.updated = 2;
1119         }
1120
1121         return zd1201_getconfig(zd,ZD1201_RID_CURRENTBSSID,ap_addr->sa_data,6);
1122 }
1123
1124 static int zd1201_set_scan(struct net_device *dev,
1125     struct iw_request_info *info, struct iw_point *srq, char *extra)
1126 {
1127         /* We do everything in get_scan */
1128         return 0;
1129 }
1130
1131 static int zd1201_get_scan(struct net_device *dev,
1132     struct iw_request_info *info, struct iw_point *srq, char *extra)
1133 {
1134         struct zd1201 *zd = (struct zd1201 *)dev->priv;
1135         int err, i, j, enabled_save;
1136         struct iw_event iwe;
1137         char *cev = extra;
1138         char *end_buf = extra + IW_SCAN_MAX_DATA;
1139
1140         /* No scanning in AP mode */
1141         if (zd->ap)
1142                 return -EOPNOTSUPP;
1143
1144         /* Scan doesn't seem to work if disabled */
1145         enabled_save = zd->mac_enabled;
1146         zd1201_enable(zd);
1147
1148         zd->rxdatas = 0;
1149         err = zd1201_docmd(zd, ZD1201_CMDCODE_INQUIRE,
1150              ZD1201_INQ_SCANRESULTS, 0, 0);
1151         if (err)
1152                 return err;
1153
1154         wait_event_interruptible(zd->rxdataq, zd->rxdatas);
1155         if (!zd->rxlen)
1156                 return -EIO;
1157
1158         if (le16_to_cpu(*(__le16*)&zd->rxdata[2]) != ZD1201_INQ_SCANRESULTS)
1159                 return -EIO;
1160
1161         for(i=8; i<zd->rxlen; i+=62) {
1162                 iwe.cmd = SIOCGIWAP;
1163                 iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
1164                 memcpy(iwe.u.ap_addr.sa_data, zd->rxdata+i+6, 6);
1165                 cev = iwe_stream_add_event(cev, end_buf, &iwe, IW_EV_ADDR_LEN);
1166
1167                 iwe.cmd = SIOCGIWESSID;
1168                 iwe.u.data.length = zd->rxdata[i+16];
1169                 iwe.u.data.flags = 1;
1170                 cev = iwe_stream_add_point(cev, end_buf, &iwe, zd->rxdata+i+18);
1171
1172                 iwe.cmd = SIOCGIWMODE;
1173                 if (zd->rxdata[i+14]&0x01)
1174                         iwe.u.mode = IW_MODE_MASTER;
1175                 else
1176                         iwe.u.mode = IW_MODE_ADHOC;
1177                 cev = iwe_stream_add_event(cev, end_buf, &iwe, IW_EV_UINT_LEN);
1178
1179                 iwe.cmd = SIOCGIWFREQ;
1180                 iwe.u.freq.m = zd->rxdata[i+0];
1181                 iwe.u.freq.e = 0;
1182                 cev = iwe_stream_add_event(cev, end_buf, &iwe, IW_EV_FREQ_LEN);
1183
1184                 iwe.cmd = SIOCGIWRATE;
1185                 iwe.u.bitrate.fixed = 0;
1186                 iwe.u.bitrate.disabled = 0;
1187                 for (j=0; j<10; j++) if (zd->rxdata[i+50+j]) {
1188                         iwe.u.bitrate.value = (zd->rxdata[i+50+j]&0x7f)*500000;
1189                         cev=iwe_stream_add_event(cev, end_buf, &iwe,
1190                             IW_EV_PARAM_LEN);
1191                 }
1192
1193                 iwe.cmd = SIOCGIWENCODE;
1194                 iwe.u.data.length = 0;
1195                 if (zd->rxdata[i+14]&0x10)
1196                         iwe.u.data.flags = IW_ENCODE_ENABLED;
1197                 else
1198                         iwe.u.data.flags = IW_ENCODE_DISABLED;
1199                 cev = iwe_stream_add_point(cev, end_buf, &iwe, NULL);
1200
1201                 iwe.cmd = IWEVQUAL;
1202                 iwe.u.qual.qual = zd->rxdata[i+4];
1203                 iwe.u.qual.noise= zd->rxdata[i+2]/10-100;
1204                 iwe.u.qual.level = (256+zd->rxdata[i+4]*100)/255-100;
1205                 iwe.u.qual.updated = 7;
1206                 cev = iwe_stream_add_event(cev, end_buf, &iwe, IW_EV_QUAL_LEN);
1207         }
1208
1209         if (!enabled_save)
1210                 zd1201_disable(zd);
1211
1212         srq->length = cev - extra;
1213         srq->flags = 0;
1214
1215         return 0;
1216 }
1217
1218 static int zd1201_set_essid(struct net_device *dev,
1219     struct iw_request_info *info, struct iw_point *data, char *essid)
1220 {
1221         struct zd1201 *zd = (struct zd1201 *)dev->priv;
1222
1223         if (data->length > IW_ESSID_MAX_SIZE)
1224                 return -EINVAL;
1225         if (data->length < 1)
1226                 data->length = 1;
1227         zd->essidlen = data->length-1;
1228         memset(zd->essid, 0, IW_ESSID_MAX_SIZE+1);
1229         memcpy(zd->essid, essid, data->length);
1230         return zd1201_join(zd, zd->essid, zd->essidlen);
1231 }
1232
1233 static int zd1201_get_essid(struct net_device *dev,
1234     struct iw_request_info *info, struct iw_point *data, char *essid)
1235 {
1236         struct zd1201 *zd = (struct zd1201 *)dev->priv;
1237
1238         memcpy(essid, zd->essid, zd->essidlen);
1239         data->flags = 1;
1240         data->length = zd->essidlen;
1241
1242         return 0;
1243 }
1244
1245 static int zd1201_get_nick(struct net_device *dev, struct iw_request_info *info,
1246     struct iw_point *data, char *nick)
1247 {
1248         strcpy(nick, "zd1201");
1249         data->flags = 1;
1250         data->length = strlen(nick);
1251         return 0;
1252 }
1253
1254 static int zd1201_set_rate(struct net_device *dev,
1255     struct iw_request_info *info, struct iw_param *rrq, char *extra)
1256 {
1257         struct zd1201 *zd = (struct zd1201 *)dev->priv;
1258         short rate;
1259         int err;
1260
1261         switch (rrq->value) {
1262                 case 1000000:
1263                         rate = ZD1201_RATEB1;
1264                         break;
1265                 case 2000000:
1266                         rate = ZD1201_RATEB2;
1267                         break;
1268                 case 5500000:
1269                         rate = ZD1201_RATEB5;
1270                         break;
1271                 case 11000000:
1272                 default:
1273                         rate = ZD1201_RATEB11;
1274                         break;
1275         }
1276         if (!rrq->fixed) { /* Also enable all lower bitrates */
1277                 rate |= rate-1;
1278         }
1279
1280         err = zd1201_setconfig16(zd, ZD1201_RID_TXRATECNTL, rate);
1281         if (err)
1282                 return err;
1283
1284         return zd1201_mac_reset(zd);
1285 }
1286
1287 static int zd1201_get_rate(struct net_device *dev,
1288     struct iw_request_info *info, struct iw_param *rrq, char *extra)
1289 {
1290         struct zd1201 *zd = (struct zd1201 *)dev->priv;
1291         short rate;
1292         int err;
1293
1294         err = zd1201_getconfig16(zd, ZD1201_RID_CURRENTTXRATE, &rate);
1295         if (err)
1296                 return err;
1297
1298         switch(rate) {
1299                 case 1:
1300                         rrq->value = 1000000;
1301                         break;
1302                 case 2:
1303                         rrq->value = 2000000;
1304                         break;
1305                 case 5:
1306                         rrq->value = 5500000;
1307                         break;
1308                 case 11:
1309                         rrq->value = 11000000;
1310                         break;
1311                 default:
1312                         rrq->value = 0;
1313         }
1314         rrq->fixed = 0;
1315         rrq->disabled = 0;
1316
1317         return 0;
1318 }
1319
1320 static int zd1201_set_rts(struct net_device *dev, struct iw_request_info *info,
1321     struct iw_param *rts, char *extra)
1322 {
1323         struct zd1201 *zd = (struct zd1201 *)dev->priv;
1324         int err;
1325         short val = rts->value;
1326
1327         if (rts->disabled || !rts->fixed)
1328                 val = ZD1201_RTSMAX;
1329         if (val > ZD1201_RTSMAX)
1330                 return -EINVAL;
1331         if (val < 0)
1332                 return -EINVAL;
1333
1334         err = zd1201_setconfig16(zd, ZD1201_RID_CNFRTSTHRESHOLD, val);
1335         if (err)
1336                 return err;
1337         return zd1201_mac_reset(zd);
1338 }
1339
1340 static int zd1201_get_rts(struct net_device *dev, struct iw_request_info *info,
1341     struct iw_param *rts, char *extra)
1342 {
1343         struct zd1201 *zd = (struct zd1201 *)dev->priv;
1344         short rtst;
1345         int err;
1346
1347         err = zd1201_getconfig16(zd, ZD1201_RID_CNFRTSTHRESHOLD, &rtst);
1348         if (err)
1349                 return err;
1350         rts->value = rtst;
1351         rts->disabled = (rts->value == ZD1201_RTSMAX);
1352         rts->fixed = 1;
1353
1354         return 0;
1355 }
1356
1357 static int zd1201_set_frag(struct net_device *dev, struct iw_request_info *info,
1358     struct iw_param *frag, char *extra)
1359 {
1360         struct zd1201 *zd = (struct zd1201 *)dev->priv;
1361         int err;
1362         short val = frag->value;
1363
1364         if (frag->disabled || !frag->fixed)
1365                 val = ZD1201_FRAGMAX;
1366         if (val > ZD1201_FRAGMAX)
1367                 return -EINVAL;
1368         if (val < ZD1201_FRAGMIN)
1369                 return -EINVAL;
1370         if (val & 1)
1371                 return -EINVAL;
1372         err = zd1201_setconfig16(zd, ZD1201_RID_CNFFRAGTHRESHOLD, val);
1373         if (err)
1374                 return err;
1375         return zd1201_mac_reset(zd);
1376 }
1377
1378 static int zd1201_get_frag(struct net_device *dev, struct iw_request_info *info,
1379     struct iw_param *frag, char *extra)
1380 {
1381         struct zd1201 *zd = (struct zd1201 *)dev->priv;
1382         short fragt;
1383         int err;
1384
1385         err = zd1201_getconfig16(zd, ZD1201_RID_CNFFRAGTHRESHOLD, &fragt);
1386         if (err)
1387                 return err;
1388         frag->value = fragt;
1389         frag->disabled = (frag->value == ZD1201_FRAGMAX);
1390         frag->fixed = 1;
1391
1392         return 0;
1393 }
1394
1395 static int zd1201_set_retry(struct net_device *dev,
1396     struct iw_request_info *info, struct iw_param *rrq, char *extra)
1397 {
1398         return 0;
1399 }
1400
1401 static int zd1201_get_retry(struct net_device *dev,
1402     struct iw_request_info *info, struct iw_param *rrq, char *extra)
1403 {
1404         return 0;
1405 }
1406
1407 static int zd1201_set_encode(struct net_device *dev,
1408     struct iw_request_info *info, struct iw_point *erq, char *key)
1409 {
1410         struct zd1201 *zd = (struct zd1201 *)dev->priv;
1411         short i;
1412         int err, rid;
1413
1414         if (erq->length > ZD1201_MAXKEYLEN)
1415                 return -EINVAL;
1416
1417         i = (erq->flags & IW_ENCODE_INDEX)-1;
1418         if (i == -1) {
1419                 err = zd1201_getconfig16(zd,ZD1201_RID_CNFDEFAULTKEYID,&i);
1420                 if (err)
1421                         return err;
1422         } else {
1423                 err = zd1201_setconfig16(zd, ZD1201_RID_CNFDEFAULTKEYID, i);
1424                 if (err)
1425                         return err;
1426         }
1427
1428         if (i < 0 || i >= ZD1201_NUMKEYS)
1429                 return -EINVAL;
1430
1431         rid = ZD1201_RID_CNFDEFAULTKEY0 + i;
1432         err = zd1201_setconfig(zd, rid, key, erq->length, 1);
1433         if (err)
1434                 return err;
1435         zd->encode_keylen[i] = erq->length;
1436         memcpy(zd->encode_keys[i], key, erq->length);
1437
1438         i=0;
1439         if (!(erq->flags & IW_ENCODE_DISABLED & IW_ENCODE_MODE)) {
1440                 i |= 0x01;
1441                 zd->encode_enabled = 1;
1442         } else
1443                 zd->encode_enabled = 0;
1444         if (erq->flags & IW_ENCODE_RESTRICTED & IW_ENCODE_MODE) {
1445                 i |= 0x02;
1446                 zd->encode_restricted = 1;
1447         } else
1448                 zd->encode_restricted = 0;
1449         err = zd1201_setconfig16(zd, ZD1201_RID_CNFWEBFLAGS, i);
1450         if (err)
1451                 return err;
1452
1453         if (zd->encode_enabled)
1454                 i = ZD1201_CNFAUTHENTICATION_SHAREDKEY;
1455         else
1456                 i = ZD1201_CNFAUTHENTICATION_OPENSYSTEM;
1457         err = zd1201_setconfig16(zd, ZD1201_RID_CNFAUTHENTICATION, i);
1458         if (err)
1459                 return err;
1460
1461         return zd1201_mac_reset(zd);
1462 }
1463
1464 static int zd1201_get_encode(struct net_device *dev,
1465     struct iw_request_info *info, struct iw_point *erq, char *key)
1466 {
1467         struct zd1201 *zd = (struct zd1201 *)dev->priv;
1468         short i;
1469         int err;
1470
1471         if (zd->encode_enabled)
1472                 erq->flags = IW_ENCODE_ENABLED;
1473         else
1474                 erq->flags = IW_ENCODE_DISABLED;
1475         if (zd->encode_restricted)
1476                 erq->flags |= IW_ENCODE_RESTRICTED;
1477         else
1478                 erq->flags |= IW_ENCODE_OPEN;
1479
1480         i = (erq->flags & IW_ENCODE_INDEX) -1;
1481         if (i == -1) {
1482                 err = zd1201_getconfig16(zd, ZD1201_RID_CNFDEFAULTKEYID, &i);
1483                 if (err)
1484                         return err;
1485         }
1486         if (i<0 || i>= ZD1201_NUMKEYS)
1487                 return -EINVAL;
1488
1489         erq->flags |= i+1;
1490
1491         erq->length = zd->encode_keylen[i];
1492         memcpy(key, zd->encode_keys[i], erq->length);
1493
1494         return 0;
1495 }
1496
1497 static int zd1201_set_power(struct net_device *dev,
1498     struct iw_request_info *info, struct iw_param *vwrq, char *extra)
1499 {
1500         struct zd1201 *zd = (struct zd1201 *)dev->priv;
1501         short enabled, duration, level;
1502         int err;
1503
1504         enabled = vwrq->disabled ? 0 : 1;
1505         if (enabled) {
1506                 if (vwrq->flags & IW_POWER_PERIOD) {
1507                         duration = vwrq->value;
1508                         err = zd1201_setconfig16(zd,
1509                             ZD1201_RID_CNFMAXSLEEPDURATION, duration);
1510                         if (err)
1511                                 return err;
1512                         goto out;
1513                 }
1514                 if (vwrq->flags & IW_POWER_TIMEOUT) {
1515                         err = zd1201_getconfig16(zd,
1516                             ZD1201_RID_CNFMAXSLEEPDURATION, &duration);
1517                         if (err)
1518                                 return err;
1519                         level = vwrq->value * 4 / duration;
1520                         if (level > 4)
1521                                 level = 4;
1522                         if (level < 0)
1523                                 level = 0;
1524                         err = zd1201_setconfig16(zd, ZD1201_RID_CNFPMEPS,
1525                             level);
1526                         if (err)
1527                                 return err;
1528                         goto out;
1529                 }
1530                 return -EINVAL;
1531         }
1532 out:
1533         err = zd1201_setconfig16(zd, ZD1201_RID_CNFPMENABLED, enabled);
1534         if (err)
1535                 return err;
1536
1537         return 0;
1538 }
1539
1540 static int zd1201_get_power(struct net_device *dev,
1541     struct iw_request_info *info, struct iw_param *vwrq, char *extra)
1542 {
1543         struct zd1201 *zd = (struct zd1201 *)dev->priv;
1544         short enabled, level, duration;
1545         int err;
1546
1547         err = zd1201_getconfig16(zd, ZD1201_RID_CNFPMENABLED, &enabled);
1548         if (err)
1549                 return err;
1550         err = zd1201_getconfig16(zd, ZD1201_RID_CNFPMEPS, &level);
1551         if (err)
1552                 return err;
1553         err = zd1201_getconfig16(zd, ZD1201_RID_CNFMAXSLEEPDURATION, &duration);
1554         if (err)
1555                 return err;
1556         vwrq->disabled = enabled ? 0 : 1;
1557         if (vwrq->flags & IW_POWER_TYPE) {
1558                 if (vwrq->flags & IW_POWER_PERIOD) {
1559                         vwrq->value = duration;
1560                         vwrq->flags = IW_POWER_PERIOD;
1561                 } else {
1562                         vwrq->value = duration * level / 4;
1563                         vwrq->flags = IW_POWER_TIMEOUT;
1564                 }
1565         }
1566         if (vwrq->flags & IW_POWER_MODE) {
1567                 if (enabled && level)
1568                         vwrq->flags = IW_POWER_UNICAST_R;
1569                 else
1570                         vwrq->flags = IW_POWER_ALL_R;
1571         }
1572
1573         return 0;
1574 }
1575
1576
1577 static const iw_handler zd1201_iw_handler[] =
1578 {
1579         (iw_handler) zd1201_config_commit,      /* SIOCSIWCOMMIT */
1580         (iw_handler) zd1201_get_name,           /* SIOCGIWNAME */
1581         (iw_handler) NULL,                      /* SIOCSIWNWID */
1582         (iw_handler) NULL,                      /* SIOCGIWNWID */
1583         (iw_handler) zd1201_set_freq,           /* SIOCSIWFREQ */
1584         (iw_handler) zd1201_get_freq,           /* SIOCGIWFREQ */
1585         (iw_handler) zd1201_set_mode,           /* SIOCSIWMODE */
1586         (iw_handler) zd1201_get_mode,           /* SIOCGIWMODE */
1587         (iw_handler) NULL,                      /* SIOCSIWSENS */
1588         (iw_handler) NULL,                      /* SIOCGIWSENS */
1589         (iw_handler) NULL,                      /* SIOCSIWRANGE */
1590         (iw_handler) zd1201_get_range,           /* SIOCGIWRANGE */
1591         (iw_handler) NULL,                      /* SIOCSIWPRIV */
1592         (iw_handler) NULL,                      /* SIOCGIWPRIV */
1593         (iw_handler) NULL,                      /* SIOCSIWSTATS */
1594         (iw_handler) NULL,                      /* SIOCGIWSTATS */
1595         (iw_handler) NULL,                      /* SIOCSIWSPY */
1596         (iw_handler) NULL,                      /* SIOCGIWSPY */
1597         (iw_handler) NULL,                      /* -- hole -- */
1598         (iw_handler) NULL,                      /* -- hole -- */
1599         (iw_handler) NULL/*zd1201_set_wap*/,            /* SIOCSIWAP */
1600         (iw_handler) zd1201_get_wap,            /* SIOCGIWAP */
1601         (iw_handler) NULL,                      /* -- hole -- */
1602         (iw_handler) NULL,                      /* SIOCGIWAPLIST */
1603         (iw_handler) zd1201_set_scan,           /* SIOCSIWSCAN */
1604         (iw_handler) zd1201_get_scan,           /* SIOCGIWSCAN */
1605         (iw_handler) zd1201_set_essid,          /* SIOCSIWESSID */
1606         (iw_handler) zd1201_get_essid,          /* SIOCGIWESSID */
1607         (iw_handler) NULL,                      /* SIOCSIWNICKN */
1608         (iw_handler) zd1201_get_nick,           /* SIOCGIWNICKN */
1609         (iw_handler) NULL,                      /* -- hole -- */
1610         (iw_handler) NULL,                      /* -- hole -- */
1611         (iw_handler) zd1201_set_rate,           /* SIOCSIWRATE */
1612         (iw_handler) zd1201_get_rate,           /* SIOCGIWRATE */
1613         (iw_handler) zd1201_set_rts,            /* SIOCSIWRTS */
1614         (iw_handler) zd1201_get_rts,            /* SIOCGIWRTS */
1615         (iw_handler) zd1201_set_frag,           /* SIOCSIWFRAG */
1616         (iw_handler) zd1201_get_frag,           /* SIOCGIWFRAG */
1617         (iw_handler) NULL,                      /* SIOCSIWTXPOW */
1618         (iw_handler) NULL,                      /* SIOCGIWTXPOW */
1619         (iw_handler) zd1201_set_retry,          /* SIOCSIWRETRY */
1620         (iw_handler) zd1201_get_retry,          /* SIOCGIWRETRY */
1621         (iw_handler) zd1201_set_encode,         /* SIOCSIWENCODE */
1622         (iw_handler) zd1201_get_encode,         /* SIOCGIWENCODE */
1623         (iw_handler) zd1201_set_power,          /* SIOCSIWPOWER */
1624         (iw_handler) zd1201_get_power,          /* SIOCGIWPOWER */
1625 };
1626
1627 static int zd1201_set_hostauth(struct net_device *dev,
1628     struct iw_request_info *info, struct iw_param *rrq, char *extra)
1629 {
1630         struct zd1201 *zd = (struct zd1201 *)dev->priv;
1631         int err;
1632
1633         if (!zd->ap)
1634                 return -EOPNOTSUPP;
1635
1636         err = zd1201_setconfig16(zd, ZD1201_RID_CNFHOSTAUTH, rrq->value);
1637         if (err)
1638                 return err;
1639         return 0;
1640 }
1641
1642 static int zd1201_get_hostauth(struct net_device *dev,
1643     struct iw_request_info *info, struct iw_param *rrq, char *extra)
1644 {
1645         struct zd1201 *zd = (struct zd1201 *)dev->priv;
1646         short hostauth;
1647         int err;
1648
1649         if (!zd->ap)
1650                 return -EOPNOTSUPP;
1651
1652         err = zd1201_getconfig16(zd, ZD1201_RID_CNFHOSTAUTH, &hostauth);
1653         if (err)
1654                 return err;
1655         rrq->value = hostauth;
1656         rrq->fixed = 1;
1657
1658         return 0;
1659 }
1660
1661 static int zd1201_auth_sta(struct net_device *dev,
1662     struct iw_request_info *info, struct sockaddr *sta, char *extra)
1663 {
1664         struct zd1201 *zd = (struct zd1201 *)dev->priv;
1665         unsigned char buffer[10];
1666
1667         if (!zd->ap)
1668                 return -EOPNOTSUPP;
1669
1670         memcpy(buffer, sta->sa_data, ETH_ALEN);
1671         *(short*)(buffer+6) = 0;        /* 0==success, 1==failure */
1672         *(short*)(buffer+8) = 0;
1673
1674         return zd1201_setconfig(zd, ZD1201_RID_AUTHENTICATESTA, buffer, 10, 1);
1675 }
1676
1677 static int zd1201_set_maxassoc(struct net_device *dev,
1678     struct iw_request_info *info, struct iw_param *rrq, char *extra)
1679 {
1680         struct zd1201 *zd = (struct zd1201 *)dev->priv;
1681         int err;
1682
1683         if (!zd->ap)
1684                 return -EOPNOTSUPP;
1685
1686         err = zd1201_setconfig16(zd, ZD1201_RID_CNFMAXASSOCSTATIONS, rrq->value);
1687         if (err)
1688                 return err;
1689         return 0;
1690 }
1691
1692 static int zd1201_get_maxassoc(struct net_device *dev,
1693     struct iw_request_info *info, struct iw_param *rrq, char *extra)
1694 {
1695         struct zd1201 *zd = (struct zd1201 *)dev->priv;
1696         short maxassoc;
1697         int err;
1698
1699         if (!zd->ap)
1700                 return -EOPNOTSUPP;
1701
1702         err = zd1201_getconfig16(zd, ZD1201_RID_CNFMAXASSOCSTATIONS, &maxassoc);
1703         if (err)
1704                 return err;
1705         rrq->value = maxassoc;
1706         rrq->fixed = 1;
1707
1708         return 0;
1709 }
1710
1711 static const iw_handler zd1201_private_handler[] = {
1712         (iw_handler) zd1201_set_hostauth,       /* ZD1201SIWHOSTAUTH */
1713         (iw_handler) zd1201_get_hostauth,       /* ZD1201GIWHOSTAUTH */
1714         (iw_handler) zd1201_auth_sta,           /* ZD1201SIWAUTHSTA */
1715         (iw_handler) NULL,                      /* nothing to get */
1716         (iw_handler) zd1201_set_maxassoc,       /* ZD1201SIMAXASSOC */
1717         (iw_handler) zd1201_get_maxassoc,       /* ZD1201GIMAXASSOC */
1718 };
1719
1720 static const struct iw_priv_args zd1201_private_args[] = {
1721         { ZD1201SIWHOSTAUTH, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
1722             IW_PRIV_TYPE_NONE, "sethostauth" },
1723         { ZD1201GIWHOSTAUTH, IW_PRIV_TYPE_NONE,
1724             IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "gethostauth" },
1725         { ZD1201SIWAUTHSTA, IW_PRIV_TYPE_ADDR | IW_PRIV_SIZE_FIXED | 1,
1726             IW_PRIV_TYPE_NONE, "authstation" },
1727         { ZD1201SIWMAXASSOC, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
1728             IW_PRIV_TYPE_NONE, "setmaxassoc" },
1729         { ZD1201GIWMAXASSOC, IW_PRIV_TYPE_NONE,
1730             IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getmaxassoc" },
1731 };
1732
1733 static const struct iw_handler_def zd1201_iw_handlers = {
1734         .num_standard           = sizeof(zd1201_iw_handler)/sizeof(iw_handler),
1735         .num_private            = sizeof(zd1201_private_handler)/sizeof(iw_handler),
1736         .num_private_args       = sizeof(zd1201_private_args)/sizeof(struct iw_priv_args),
1737         .standard               = (iw_handler *)zd1201_iw_handler,
1738         .private                = (iw_handler *)zd1201_private_handler,
1739         .private_args           = (struct iw_priv_args *) zd1201_private_args,
1740 };
1741
1742 int zd1201_probe(struct usb_interface *interface, const struct usb_device_id *id)
1743 {
1744         struct zd1201 *zd;
1745         struct usb_device *usb;
1746         int i, err;
1747         short porttype;
1748         char buf[IW_ESSID_MAX_SIZE+2];
1749
1750         usb = interface_to_usbdev(interface);
1751
1752         zd = kmalloc(sizeof(struct zd1201), GFP_KERNEL);
1753         if (!zd) {
1754                 return -ENOMEM;
1755         }
1756         memset(zd, 0, sizeof(struct zd1201));
1757         zd->ap = ap;
1758         zd->usb = usb;
1759         zd->removed = 0;
1760         init_waitqueue_head(&zd->rxdataq);
1761         INIT_HLIST_HEAD(&zd->fraglist);
1762
1763         err = zd1201_fw_upload(usb, zd->ap);
1764         if (err) {
1765                 dev_err(&usb->dev, "zd1201 firmware upload failed: %d\n", err);
1766                 goto err_zd;
1767         }
1768
1769         zd->endp_in = 1;
1770         zd->endp_out = 1;
1771         zd->endp_out2 = 2;
1772         zd->rx_urb = usb_alloc_urb(0, GFP_KERNEL);
1773         zd->tx_urb = usb_alloc_urb(0, GFP_KERNEL);
1774         if (!zd->rx_urb || !zd->tx_urb)
1775                 goto err_zd;
1776
1777         for(i = 0; i<100; i++)
1778                 udelay(1000);
1779
1780         err = zd1201_drvr_start(zd);
1781         if (err)
1782                 goto err_zd;
1783
1784         err = zd1201_setconfig16(zd, ZD1201_RID_CNFMAXDATALEN, 2312);
1785         if (err)
1786                 goto err_start;
1787
1788         err = zd1201_setconfig16(zd, ZD1201_RID_TXRATECNTL,
1789             ZD1201_RATEB1 | ZD1201_RATEB2 | ZD1201_RATEB5 | ZD1201_RATEB11);
1790         if (err)
1791                 goto err_start;
1792
1793         zd->dev = alloc_etherdev(0);
1794         if (!zd->dev)
1795                 goto err_start;
1796
1797         zd->dev->priv = zd;
1798         zd->dev->open = zd1201_net_open;
1799         zd->dev->stop = zd1201_net_stop;
1800         zd->dev->get_stats = zd1201_get_stats;
1801         zd->dev->get_wireless_stats = zd1201_get_wireless_stats;
1802         zd->dev->wireless_handlers =
1803             (struct iw_handler_def *)&zd1201_iw_handlers;
1804         zd->dev->hard_start_xmit = zd1201_hard_start_xmit;
1805         zd->dev->watchdog_timeo = ZD1201_TX_TIMEOUT;
1806         zd->dev->tx_timeout = zd1201_tx_timeout;
1807         zd->dev->set_multicast_list = zd1201_set_multicast;
1808         zd->dev->set_mac_address = zd1201_set_mac_address;
1809         strcpy(zd->dev->name, "wlan%d");
1810
1811         err = zd1201_getconfig(zd, ZD1201_RID_CNFOWNMACADDR,
1812             zd->dev->dev_addr, zd->dev->addr_len);
1813         if (err)
1814                 goto err_net;
1815
1816         /* Set wildcard essid to match zd->essid */
1817         *(__le16 *)buf = cpu_to_le16(0);
1818         err = zd1201_setconfig(zd, ZD1201_RID_CNFDESIREDSSID, buf,
1819             IW_ESSID_MAX_SIZE+2, 1);
1820         if (err)
1821                 goto err_net;
1822
1823         if (zd->ap)
1824                 porttype = ZD1201_PORTTYPE_AP;
1825         else
1826                 porttype = ZD1201_PORTTYPE_BSS;
1827         err = zd1201_setconfig16(zd, ZD1201_RID_CNFPORTTYPE, porttype);
1828         if (err)
1829                 goto err_net;
1830
1831         err = register_netdev(zd->dev);
1832         if (err)
1833                 goto err_net;
1834         dev_info(&usb->dev, "%s: ZD1201 USB Wireless interface\n",
1835             zd->dev->name);
1836
1837         usb_set_intfdata(interface, zd);
1838         return 0;
1839
1840 err_net:
1841         free_netdev(zd->dev);
1842 err_start:
1843         /* Leave the device in reset state */
1844         zd1201_docmd(zd, ZD1201_CMDCODE_INIT, 0, 0, 0);
1845 err_zd:
1846         if (zd->tx_urb)
1847                 usb_free_urb(zd->tx_urb);
1848         if (zd->rx_urb)
1849                 usb_free_urb(zd->rx_urb);
1850         kfree(zd);
1851         return err;
1852 }
1853
1854 void zd1201_disconnect(struct usb_interface *interface)
1855 {
1856         struct zd1201 *zd=(struct zd1201 *)usb_get_intfdata(interface);
1857         struct hlist_node *node, *node2;
1858         struct zd1201_frag *frag;
1859
1860         if (!zd)
1861                 return;
1862         usb_set_intfdata(interface, NULL);
1863         if (zd->dev) {
1864                 unregister_netdev(zd->dev);
1865                 free_netdev(zd->dev);
1866         }
1867
1868         hlist_for_each_entry_safe(frag, node, node2, &zd->fraglist, fnode) {
1869                 hlist_del_init(&frag->fnode);
1870                 kfree_skb(frag->skb);
1871                 kfree(frag);
1872         }
1873
1874         if (zd->tx_urb) {
1875                 usb_kill_urb(zd->tx_urb);
1876                 usb_free_urb(zd->tx_urb);
1877         }
1878         if (zd->rx_urb) {
1879                 usb_kill_urb(zd->rx_urb);
1880                 usb_free_urb(zd->rx_urb);
1881         }
1882         kfree(zd);
1883 }
1884
1885 struct usb_driver zd1201_usb = {
1886         .owner = THIS_MODULE,
1887         .name = "zd1201",
1888         .probe = zd1201_probe,
1889         .disconnect = zd1201_disconnect,
1890         .id_table = zd1201_table,
1891 };
1892
1893 static int __init zd1201_init(void)
1894 {
1895         return usb_register(&zd1201_usb);
1896 }
1897
1898 static void __exit zd1201_cleanup(void)
1899 {
1900         usb_deregister(&zd1201_usb);
1901 }
1902
1903 module_init(zd1201_init);
1904 module_exit(zd1201_cleanup);