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/slab.h> 18 #include <linux/netdevice.h> 19 #include <linux/etherdevice.h> 20 #include <linux/wireless.h> 21 #include <net/cfg80211.h> 22 #include <net/iw_handler.h> 23 #include <linux/string.h> 24 #include <linux/if_arp.h> 25 #include <linux/firmware.h> 26 #include "zd1201.h" 27 28 static const struct usb_device_id zd1201_table[] = { 29 {USB_DEVICE(0x0586, 0x3400)}, /* Peabird Wireless USB Adapter */ 30 {USB_DEVICE(0x0ace, 0x1201)}, /* ZyDAS ZD1201 Wireless USB Adapter */ 31 {USB_DEVICE(0x050d, 0x6051)}, /* Belkin F5D6051 usb adapter */ 32 {USB_DEVICE(0x0db0, 0x6823)}, /* MSI UB11B usb adapter */ 33 {USB_DEVICE(0x1044, 0x8004)}, /* Gigabyte GN-WLBZ101 */ 34 {USB_DEVICE(0x1044, 0x8005)}, /* GIGABYTE GN-WLBZ201 usb adapter */ 35 {} 36 }; 37 38 static int ap; /* Are we an AP or a normal station? */ 39 40 #define ZD1201_VERSION "0.15" 41 42 MODULE_AUTHOR("Jeroen Vreeken <pe1rxq@amsat.org>"); 43 MODULE_DESCRIPTION("Driver for ZyDAS ZD1201 based USB Wireless adapters"); 44 MODULE_VERSION(ZD1201_VERSION); 45 MODULE_LICENSE("GPL"); 46 module_param(ap, int, 0); 47 MODULE_PARM_DESC(ap, "If non-zero Access Point firmware will be loaded"); 48 MODULE_DEVICE_TABLE(usb, zd1201_table); 49 50 51 static int zd1201_fw_upload(struct usb_device *dev, int apfw) 52 { 53 const struct firmware *fw_entry; 54 const char *data; 55 unsigned long len; 56 int err; 57 unsigned char ret; 58 char *buf; 59 char *fwfile; 60 61 if (apfw) 62 fwfile = "zd1201-ap.fw"; 63 else 64 fwfile = "zd1201.fw"; 65 66 err = request_firmware(&fw_entry, fwfile, &dev->dev); 67 if (err) { 68 dev_err(&dev->dev, "Failed to load %s firmware file!\n", fwfile); 69 dev_err(&dev->dev, "Make sure the hotplug firmware loader is installed.\n"); 70 dev_err(&dev->dev, "Goto http://linux-lc100020.sourceforge.net for more info.\n"); 71 return err; 72 } 73 74 data = fw_entry->data; 75 len = fw_entry->size; 76 77 buf = kmalloc(1024, GFP_ATOMIC); 78 if (!buf) { 79 err = -ENOMEM; 80 goto exit; 81 } 82 83 while (len > 0) { 84 int translen = (len > 1024) ? 1024 : len; 85 memcpy(buf, data, translen); 86 87 err = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), 0, 88 USB_DIR_OUT | 0x40, 0, 0, buf, translen, 89 ZD1201_FW_TIMEOUT); 90 if (err < 0) 91 goto exit; 92 93 len -= translen; 94 data += translen; 95 } 96 97 err = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), 0x2, 98 USB_DIR_OUT | 0x40, 0, 0, NULL, 0, ZD1201_FW_TIMEOUT); 99 if (err < 0) 100 goto exit; 101 102 err = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), 0x4, 103 USB_DIR_IN | 0x40, 0, 0, buf, sizeof(ret), ZD1201_FW_TIMEOUT); 104 if (err < 0) 105 goto exit; 106 107 memcpy(&ret, buf, sizeof(ret)); 108 109 if (ret & 0x80) { 110 err = -EIO; 111 goto exit; 112 } 113 114 err = 0; 115 exit: 116 kfree(buf); 117 release_firmware(fw_entry); 118 return err; 119 } 120 121 MODULE_FIRMWARE("zd1201-ap.fw"); 122 MODULE_FIRMWARE("zd1201.fw"); 123 124 static void zd1201_usbfree(struct urb *urb) 125 { 126 struct zd1201 *zd = urb->context; 127 128 switch(urb->status) { 129 case -EILSEQ: 130 case -ENODEV: 131 case -ETIME: 132 case -ENOENT: 133 case -EPIPE: 134 case -EOVERFLOW: 135 case -ESHUTDOWN: 136 dev_warn(&zd->usb->dev, "%s: urb failed: %d\n", 137 zd->dev->name, urb->status); 138 } 139 140 kfree(urb->transfer_buffer); 141 usb_free_urb(urb); 142 } 143 144 /* cmdreq message: 145 u32 type 146 u16 cmd 147 u16 parm0 148 u16 parm1 149 u16 parm2 150 u8 pad[4] 151 152 total: 4 + 2 + 2 + 2 + 2 + 4 = 16 153 */ 154 static int zd1201_docmd(struct zd1201 *zd, int cmd, int parm0, 155 int parm1, int parm2) 156 { 157 unsigned char *command; 158 int ret; 159 struct urb *urb; 160 161 command = kmalloc(16, GFP_ATOMIC); 162 if (!command) 163 return -ENOMEM; 164 165 *((__le32*)command) = cpu_to_le32(ZD1201_USB_CMDREQ); 166 *((__le16*)&command[4]) = cpu_to_le16(cmd); 167 *((__le16*)&command[6]) = cpu_to_le16(parm0); 168 *((__le16*)&command[8]) = cpu_to_le16(parm1); 169 *((__le16*)&command[10])= cpu_to_le16(parm2); 170 171 urb = usb_alloc_urb(0, GFP_ATOMIC); 172 if (!urb) { 173 kfree(command); 174 return -ENOMEM; 175 } 176 usb_fill_bulk_urb(urb, zd->usb, usb_sndbulkpipe(zd->usb, zd->endp_out2), 177 command, 16, zd1201_usbfree, zd); 178 ret = usb_submit_urb(urb, GFP_ATOMIC); 179 if (ret) { 180 kfree(command); 181 usb_free_urb(urb); 182 } 183 184 return ret; 185 } 186 187 /* Callback after sending out a packet */ 188 static void zd1201_usbtx(struct urb *urb) 189 { 190 struct zd1201 *zd = urb->context; 191 netif_wake_queue(zd->dev); 192 } 193 194 /* Incoming data */ 195 static void zd1201_usbrx(struct urb *urb) 196 { 197 struct zd1201 *zd = urb->context; 198 int free = 0; 199 unsigned char *data = urb->transfer_buffer; 200 struct sk_buff *skb; 201 unsigned char type; 202 203 if (!zd) 204 return; 205 206 switch(urb->status) { 207 case -EILSEQ: 208 case -ENODEV: 209 case -ETIME: 210 case -ENOENT: 211 case -EPIPE: 212 case -EOVERFLOW: 213 case -ESHUTDOWN: 214 dev_warn(&zd->usb->dev, "%s: rx urb failed: %d\n", 215 zd->dev->name, urb->status); 216 free = 1; 217 goto exit; 218 } 219 220 if (urb->status != 0 || urb->actual_length == 0) 221 goto resubmit; 222 223 type = data[0]; 224 if (type == ZD1201_PACKET_EVENTSTAT || type == ZD1201_PACKET_RESOURCE) { 225 memcpy(zd->rxdata, data, urb->actual_length); 226 zd->rxlen = urb->actual_length; 227 zd->rxdatas = 1; 228 wake_up(&zd->rxdataq); 229 } 230 /* Info frame */ 231 if (type == ZD1201_PACKET_INQUIRE) { 232 int i = 0; 233 unsigned short infotype, copylen; 234 infotype = le16_to_cpu(*(__le16*)&data[6]); 235 236 if (infotype == ZD1201_INF_LINKSTATUS) { 237 short linkstatus; 238 239 linkstatus = le16_to_cpu(*(__le16*)&data[8]); 240 switch(linkstatus) { 241 case 1: 242 netif_carrier_on(zd->dev); 243 break; 244 case 2: 245 netif_carrier_off(zd->dev); 246 break; 247 case 3: 248 netif_carrier_off(zd->dev); 249 break; 250 case 4: 251 netif_carrier_on(zd->dev); 252 break; 253 default: 254 netif_carrier_off(zd->dev); 255 } 256 goto resubmit; 257 } 258 if (infotype == ZD1201_INF_ASSOCSTATUS) { 259 short status = le16_to_cpu(*(__le16*)(data+8)); 260 int event; 261 union iwreq_data wrqu; 262 263 switch (status) { 264 case ZD1201_ASSOCSTATUS_STAASSOC: 265 case ZD1201_ASSOCSTATUS_REASSOC: 266 event = IWEVREGISTERED; 267 break; 268 case ZD1201_ASSOCSTATUS_DISASSOC: 269 case ZD1201_ASSOCSTATUS_ASSOCFAIL: 270 case ZD1201_ASSOCSTATUS_AUTHFAIL: 271 default: 272 event = IWEVEXPIRED; 273 } 274 memcpy(wrqu.addr.sa_data, data+10, ETH_ALEN); 275 wrqu.addr.sa_family = ARPHRD_ETHER; 276 277 /* Send event to user space */ 278 wireless_send_event(zd->dev, event, &wrqu, NULL); 279 280 goto resubmit; 281 } 282 if (infotype == ZD1201_INF_AUTHREQ) { 283 union iwreq_data wrqu; 284 285 memcpy(wrqu.addr.sa_data, data+8, ETH_ALEN); 286 wrqu.addr.sa_family = ARPHRD_ETHER; 287 /* There isn't a event that trully fits this request. 288 We assume that userspace will be smart enough to 289 see a new station being expired and sends back a 290 authstation ioctl to authorize it. */ 291 wireless_send_event(zd->dev, IWEVEXPIRED, &wrqu, NULL); 292 goto resubmit; 293 } 294 /* Other infotypes are handled outside this handler */ 295 zd->rxlen = 0; 296 while (i < urb->actual_length) { 297 copylen = le16_to_cpu(*(__le16*)&data[i+2]); 298 /* Sanity check, sometimes we get junk */ 299 if (copylen+zd->rxlen > sizeof(zd->rxdata)) 300 break; 301 memcpy(zd->rxdata+zd->rxlen, data+i+4, copylen); 302 zd->rxlen += copylen; 303 i += 64; 304 } 305 if (i >= urb->actual_length) { 306 zd->rxdatas = 1; 307 wake_up(&zd->rxdataq); 308 } 309 goto resubmit; 310 } 311 /* Actual data */ 312 if (data[urb->actual_length-1] == ZD1201_PACKET_RXDATA) { 313 int datalen = urb->actual_length-1; 314 unsigned short len, fc, seq; 315 316 len = ntohs(*(__be16 *)&data[datalen-2]); 317 if (len>datalen) 318 len=datalen; 319 fc = le16_to_cpu(*(__le16 *)&data[datalen-16]); 320 seq = le16_to_cpu(*(__le16 *)&data[datalen-24]); 321 322 if (zd->monitor) { 323 if (datalen < 24) 324 goto resubmit; 325 if (!(skb = dev_alloc_skb(datalen+24))) 326 goto resubmit; 327 328 skb_put_data(skb, &data[datalen - 16], 2); 329 skb_put_data(skb, &data[datalen - 2], 2); 330 skb_put_data(skb, &data[datalen - 14], 6); 331 skb_put_data(skb, &data[datalen - 22], 6); 332 skb_put_data(skb, &data[datalen - 8], 6); 333 skb_put_data(skb, &data[datalen - 24], 2); 334 skb_put_data(skb, data, len); 335 skb->protocol = eth_type_trans(skb, zd->dev); 336 zd->dev->stats.rx_packets++; 337 zd->dev->stats.rx_bytes += skb->len; 338 netif_rx(skb); 339 goto resubmit; 340 } 341 342 if ((seq & IEEE80211_SCTL_FRAG) || 343 (fc & IEEE80211_FCTL_MOREFRAGS)) { 344 struct zd1201_frag *frag = NULL; 345 char *ptr; 346 347 if (datalen<14) 348 goto resubmit; 349 if ((seq & IEEE80211_SCTL_FRAG) == 0) { 350 frag = kmalloc(sizeof(*frag), GFP_ATOMIC); 351 if (!frag) 352 goto resubmit; 353 skb = dev_alloc_skb(IEEE80211_MAX_DATA_LEN +14+2); 354 if (!skb) { 355 kfree(frag); 356 goto resubmit; 357 } 358 frag->skb = skb; 359 frag->seq = seq & IEEE80211_SCTL_SEQ; 360 skb_reserve(skb, 2); 361 skb_put_data(skb, &data[datalen - 14], 12); 362 skb_put_data(skb, &data[6], 2); 363 skb_put_data(skb, data + 8, len); 364 hlist_add_head(&frag->fnode, &zd->fraglist); 365 goto resubmit; 366 } 367 hlist_for_each_entry(frag, &zd->fraglist, fnode) 368 if (frag->seq == (seq&IEEE80211_SCTL_SEQ)) 369 break; 370 if (!frag) 371 goto resubmit; 372 skb = frag->skb; 373 ptr = skb_put(skb, len); 374 if (ptr) 375 memcpy(ptr, data+8, len); 376 if (fc & IEEE80211_FCTL_MOREFRAGS) 377 goto resubmit; 378 hlist_del_init(&frag->fnode); 379 kfree(frag); 380 } else { 381 if (datalen<14) 382 goto resubmit; 383 skb = dev_alloc_skb(len + 14 + 2); 384 if (!skb) 385 goto resubmit; 386 skb_reserve(skb, 2); 387 skb_put_data(skb, &data[datalen - 14], 12); 388 skb_put_data(skb, &data[6], 2); 389 skb_put_data(skb, data + 8, len); 390 } 391 skb->protocol = eth_type_trans(skb, zd->dev); 392 zd->dev->stats.rx_packets++; 393 zd->dev->stats.rx_bytes += skb->len; 394 netif_rx(skb); 395 } 396 resubmit: 397 memset(data, 0, ZD1201_RXSIZE); 398 399 urb->status = 0; 400 urb->dev = zd->usb; 401 if(usb_submit_urb(urb, GFP_ATOMIC)) 402 free = 1; 403 404 exit: 405 if (free) { 406 zd->rxlen = 0; 407 zd->rxdatas = 1; 408 wake_up(&zd->rxdataq); 409 kfree(urb->transfer_buffer); 410 } 411 } 412 413 static int zd1201_getconfig(struct zd1201 *zd, int rid, void *riddata, 414 unsigned int riddatalen) 415 { 416 int err; 417 int i = 0; 418 int code; 419 int rid_fid; 420 int length; 421 unsigned char *pdata; 422 423 zd->rxdatas = 0; 424 err = zd1201_docmd(zd, ZD1201_CMDCODE_ACCESS, rid, 0, 0); 425 if (err) 426 return err; 427 428 wait_event_interruptible(zd->rxdataq, zd->rxdatas); 429 if (!zd->rxlen) 430 return -EIO; 431 432 code = le16_to_cpu(*(__le16*)(&zd->rxdata[4])); 433 rid_fid = le16_to_cpu(*(__le16*)(&zd->rxdata[6])); 434 length = le16_to_cpu(*(__le16*)(&zd->rxdata[8])); 435 if (length > zd->rxlen) 436 length = zd->rxlen-6; 437 438 /* If access bit is not on, then error */ 439 if ((code & ZD1201_ACCESSBIT) != ZD1201_ACCESSBIT || rid_fid != rid ) 440 return -EINVAL; 441 442 /* Not enough buffer for allocating data */ 443 if (riddatalen != (length - 4)) { 444 dev_dbg(&zd->usb->dev, "riddatalen mismatches, expected=%u, (packet=%u) length=%u, rid=0x%04X, rid_fid=0x%04X\n", 445 riddatalen, zd->rxlen, length, rid, rid_fid); 446 return -ENODATA; 447 } 448 449 zd->rxdatas = 0; 450 /* Issue SetRxRid commnd */ 451 err = zd1201_docmd(zd, ZD1201_CMDCODE_SETRXRID, rid, 0, length); 452 if (err) 453 return err; 454 455 /* Receive RID record from resource packets */ 456 wait_event_interruptible(zd->rxdataq, zd->rxdatas); 457 if (!zd->rxlen) 458 return -EIO; 459 460 if (zd->rxdata[zd->rxlen - 1] != ZD1201_PACKET_RESOURCE) { 461 dev_dbg(&zd->usb->dev, "Packet type mismatch: 0x%x not 0x3\n", 462 zd->rxdata[zd->rxlen-1]); 463 return -EINVAL; 464 } 465 466 /* Set the data pointer and received data length */ 467 pdata = zd->rxdata; 468 length = zd->rxlen; 469 470 do { 471 int actual_length; 472 473 actual_length = (length > 64) ? 64 : length; 474 475 if (pdata[0] != 0x3) { 476 dev_dbg(&zd->usb->dev, "Rx Resource packet type error: %02X\n", 477 pdata[0]); 478 return -EINVAL; 479 } 480 481 if (actual_length != 64) { 482 /* Trim the last packet type byte */ 483 actual_length--; 484 } 485 486 /* Skip the 4 bytes header (RID length and RID) */ 487 if (i == 0) { 488 pdata += 8; 489 actual_length -= 8; 490 } else { 491 pdata += 4; 492 actual_length -= 4; 493 } 494 495 memcpy(riddata, pdata, actual_length); 496 riddata += actual_length; 497 pdata += actual_length; 498 length -= 64; 499 i++; 500 } while (length > 0); 501 502 return 0; 503 } 504 505 /* 506 * resreq: 507 * byte type 508 * byte sequence 509 * u16 reserved 510 * byte data[12] 511 * total: 16 512 */ 513 static int zd1201_setconfig(struct zd1201 *zd, int rid, void *buf, int len, int wait) 514 { 515 int err; 516 unsigned char *request; 517 int reqlen; 518 char seq=0; 519 struct urb *urb; 520 gfp_t gfp_mask = wait ? GFP_NOIO : GFP_ATOMIC; 521 522 len += 4; /* first 4 are for header */ 523 524 zd->rxdatas = 0; 525 zd->rxlen = 0; 526 for (seq=0; len > 0; seq++) { 527 request = kmalloc(16, gfp_mask); 528 if (!request) 529 return -ENOMEM; 530 urb = usb_alloc_urb(0, gfp_mask); 531 if (!urb) { 532 kfree(request); 533 return -ENOMEM; 534 } 535 memset(request, 0, 16); 536 reqlen = len>12 ? 12 : len; 537 request[0] = ZD1201_USB_RESREQ; 538 request[1] = seq; 539 request[2] = 0; 540 request[3] = 0; 541 if (request[1] == 0) { 542 /* add header */ 543 *(__le16*)&request[4] = cpu_to_le16((len-2+1)/2); 544 *(__le16*)&request[6] = cpu_to_le16(rid); 545 memcpy(request+8, buf, reqlen-4); 546 buf += reqlen-4; 547 } else { 548 memcpy(request+4, buf, reqlen); 549 buf += reqlen; 550 } 551 552 len -= reqlen; 553 554 usb_fill_bulk_urb(urb, zd->usb, usb_sndbulkpipe(zd->usb, 555 zd->endp_out2), request, 16, zd1201_usbfree, zd); 556 err = usb_submit_urb(urb, gfp_mask); 557 if (err) 558 goto err; 559 } 560 561 request = kmalloc(16, gfp_mask); 562 if (!request) 563 return -ENOMEM; 564 urb = usb_alloc_urb(0, gfp_mask); 565 if (!urb) { 566 kfree(request); 567 return -ENOMEM; 568 } 569 *((__le32*)request) = cpu_to_le32(ZD1201_USB_CMDREQ); 570 *((__le16*)&request[4]) = 571 cpu_to_le16(ZD1201_CMDCODE_ACCESS|ZD1201_ACCESSBIT); 572 *((__le16*)&request[6]) = cpu_to_le16(rid); 573 *((__le16*)&request[8]) = cpu_to_le16(0); 574 *((__le16*)&request[10]) = cpu_to_le16(0); 575 usb_fill_bulk_urb(urb, zd->usb, usb_sndbulkpipe(zd->usb, zd->endp_out2), 576 request, 16, zd1201_usbfree, zd); 577 err = usb_submit_urb(urb, gfp_mask); 578 if (err) 579 goto err; 580 581 if (wait) { 582 wait_event_interruptible(zd->rxdataq, zd->rxdatas); 583 if (!zd->rxlen || le16_to_cpu(*(__le16*)&zd->rxdata[6]) != rid) { 584 dev_dbg(&zd->usb->dev, "wrong or no RID received\n"); 585 } 586 } 587 588 return 0; 589 err: 590 kfree(request); 591 usb_free_urb(urb); 592 return err; 593 } 594 595 static inline int zd1201_getconfig16(struct zd1201 *zd, int rid, short *val) 596 { 597 int err; 598 __le16 zdval; 599 600 err = zd1201_getconfig(zd, rid, &zdval, sizeof(__le16)); 601 if (err) 602 return err; 603 *val = le16_to_cpu(zdval); 604 return 0; 605 } 606 607 static inline int zd1201_setconfig16(struct zd1201 *zd, int rid, short val) 608 { 609 __le16 zdval = cpu_to_le16(val); 610 return (zd1201_setconfig(zd, rid, &zdval, sizeof(__le16), 1)); 611 } 612 613 static int zd1201_drvr_start(struct zd1201 *zd) 614 { 615 int err, i; 616 short max; 617 __le16 zdmax; 618 unsigned char *buffer; 619 620 buffer = kzalloc(ZD1201_RXSIZE, GFP_KERNEL); 621 if (!buffer) 622 return -ENOMEM; 623 624 usb_fill_bulk_urb(zd->rx_urb, zd->usb, 625 usb_rcvbulkpipe(zd->usb, zd->endp_in), buffer, ZD1201_RXSIZE, 626 zd1201_usbrx, zd); 627 628 err = usb_submit_urb(zd->rx_urb, GFP_KERNEL); 629 if (err) 630 goto err_buffer; 631 632 err = zd1201_docmd(zd, ZD1201_CMDCODE_INIT, 0, 0, 0); 633 if (err) 634 goto err_urb; 635 636 err = zd1201_getconfig(zd, ZD1201_RID_CNFMAXTXBUFFERNUMBER, &zdmax, 637 sizeof(__le16)); 638 if (err) 639 goto err_urb; 640 641 max = le16_to_cpu(zdmax); 642 for (i=0; i<max; i++) { 643 err = zd1201_docmd(zd, ZD1201_CMDCODE_ALLOC, 1514, 0, 0); 644 if (err) 645 goto err_urb; 646 } 647 648 return 0; 649 650 err_urb: 651 usb_kill_urb(zd->rx_urb); 652 return err; 653 err_buffer: 654 kfree(buffer); 655 return err; 656 } 657 658 /* Magic alert: The firmware doesn't seem to like the MAC state being 659 * toggled in promisc (aka monitor) mode. 660 * (It works a number of times, but will halt eventually) 661 * So we turn it of before disabling and on after enabling if needed. 662 */ 663 static int zd1201_enable(struct zd1201 *zd) 664 { 665 int err; 666 667 if (zd->mac_enabled) 668 return 0; 669 670 err = zd1201_docmd(zd, ZD1201_CMDCODE_ENABLE, 0, 0, 0); 671 if (!err) 672 zd->mac_enabled = 1; 673 674 if (zd->monitor) 675 err = zd1201_setconfig16(zd, ZD1201_RID_PROMISCUOUSMODE, 1); 676 677 return err; 678 } 679 680 static int zd1201_disable(struct zd1201 *zd) 681 { 682 int err; 683 684 if (!zd->mac_enabled) 685 return 0; 686 if (zd->monitor) { 687 err = zd1201_setconfig16(zd, ZD1201_RID_PROMISCUOUSMODE, 0); 688 if (err) 689 return err; 690 } 691 692 err = zd1201_docmd(zd, ZD1201_CMDCODE_DISABLE, 0, 0, 0); 693 if (!err) 694 zd->mac_enabled = 0; 695 return err; 696 } 697 698 static int zd1201_mac_reset(struct zd1201 *zd) 699 { 700 if (!zd->mac_enabled) 701 return 0; 702 zd1201_disable(zd); 703 return zd1201_enable(zd); 704 } 705 706 static int zd1201_join(struct zd1201 *zd, char *essid, int essidlen) 707 { 708 int err, val; 709 char buf[IW_ESSID_MAX_SIZE+2]; 710 711 err = zd1201_disable(zd); 712 if (err) 713 return err; 714 715 val = ZD1201_CNFAUTHENTICATION_OPENSYSTEM; 716 val |= ZD1201_CNFAUTHENTICATION_SHAREDKEY; 717 err = zd1201_setconfig16(zd, ZD1201_RID_CNFAUTHENTICATION, val); 718 if (err) 719 return err; 720 721 *(__le16 *)buf = cpu_to_le16(essidlen); 722 memcpy(buf+2, essid, essidlen); 723 if (!zd->ap) { /* Normal station */ 724 err = zd1201_setconfig(zd, ZD1201_RID_CNFDESIREDSSID, buf, 725 IW_ESSID_MAX_SIZE+2, 1); 726 if (err) 727 return err; 728 } else { /* AP */ 729 err = zd1201_setconfig(zd, ZD1201_RID_CNFOWNSSID, buf, 730 IW_ESSID_MAX_SIZE+2, 1); 731 if (err) 732 return err; 733 } 734 735 err = zd1201_setconfig(zd, ZD1201_RID_CNFOWNMACADDR, 736 zd->dev->dev_addr, zd->dev->addr_len, 1); 737 if (err) 738 return err; 739 740 err = zd1201_enable(zd); 741 if (err) 742 return err; 743 744 msleep(100); 745 return 0; 746 } 747 748 static int zd1201_net_open(struct net_device *dev) 749 { 750 struct zd1201 *zd = netdev_priv(dev); 751 752 /* Start MAC with wildcard if no essid set */ 753 if (!zd->mac_enabled) 754 zd1201_join(zd, zd->essid, zd->essidlen); 755 netif_start_queue(dev); 756 757 return 0; 758 } 759 760 static int zd1201_net_stop(struct net_device *dev) 761 { 762 netif_stop_queue(dev); 763 return 0; 764 } 765 766 /* 767 RFC 1042 encapsulates Ethernet frames in 802.11 frames 768 by prefixing them with 0xaa, 0xaa, 0x03) followed by a SNAP OID of 0 769 (0x00, 0x00, 0x00). Zd requires an additional padding, copy 770 of ethernet addresses, length of the standard RFC 1042 packet 771 and a command byte (which is nul for tx). 772 773 tx frame (from Wlan NG): 774 RFC 1042: 775 llc 0xAA 0xAA 0x03 (802.2 LLC) 776 snap 0x00 0x00 0x00 (Ethernet encapsulated) 777 type 2 bytes, Ethernet type field 778 payload (minus eth header) 779 Zydas specific: 780 padding 1B if (skb->len+8+1)%64==0 781 Eth MAC addr 12 bytes, Ethernet MAC addresses 782 length 2 bytes, RFC 1042 packet length 783 (llc+snap+type+payload) 784 zd 1 null byte, zd1201 packet type 785 */ 786 static netdev_tx_t zd1201_hard_start_xmit(struct sk_buff *skb, 787 struct net_device *dev) 788 { 789 struct zd1201 *zd = netdev_priv(dev); 790 unsigned char *txbuf = zd->txdata; 791 int txbuflen, pad = 0, err; 792 struct urb *urb = zd->tx_urb; 793 794 if (!zd->mac_enabled || zd->monitor) { 795 dev->stats.tx_dropped++; 796 kfree_skb(skb); 797 return NETDEV_TX_OK; 798 } 799 netif_stop_queue(dev); 800 801 txbuflen = skb->len + 8 + 1; 802 if (txbuflen%64 == 0) { 803 pad = 1; 804 txbuflen++; 805 } 806 txbuf[0] = 0xAA; 807 txbuf[1] = 0xAA; 808 txbuf[2] = 0x03; 809 txbuf[3] = 0x00; /* rfc1042 */ 810 txbuf[4] = 0x00; 811 txbuf[5] = 0x00; 812 813 skb_copy_from_linear_data_offset(skb, 12, txbuf + 6, skb->len - 12); 814 if (pad) 815 txbuf[skb->len-12+6]=0; 816 skb_copy_from_linear_data(skb, txbuf + skb->len - 12 + 6 + pad, 12); 817 *(__be16*)&txbuf[skb->len+6+pad] = htons(skb->len-12+6); 818 txbuf[txbuflen-1] = 0; 819 820 usb_fill_bulk_urb(urb, zd->usb, usb_sndbulkpipe(zd->usb, zd->endp_out), 821 txbuf, txbuflen, zd1201_usbtx, zd); 822 823 err = usb_submit_urb(zd->tx_urb, GFP_ATOMIC); 824 if (err) { 825 dev->stats.tx_errors++; 826 netif_start_queue(dev); 827 } else { 828 dev->stats.tx_packets++; 829 dev->stats.tx_bytes += skb->len; 830 } 831 kfree_skb(skb); 832 833 return NETDEV_TX_OK; 834 } 835 836 static void zd1201_tx_timeout(struct net_device *dev) 837 { 838 struct zd1201 *zd = netdev_priv(dev); 839 840 if (!zd) 841 return; 842 dev_warn(&zd->usb->dev, "%s: TX timeout, shooting down urb\n", 843 dev->name); 844 usb_unlink_urb(zd->tx_urb); 845 dev->stats.tx_errors++; 846 /* Restart the timeout to quiet the watchdog: */ 847 netif_trans_update(dev); /* prevent tx timeout */ 848 } 849 850 static int zd1201_set_mac_address(struct net_device *dev, void *p) 851 { 852 struct sockaddr *addr = p; 853 struct zd1201 *zd = netdev_priv(dev); 854 int err; 855 856 if (!zd) 857 return -ENODEV; 858 859 err = zd1201_setconfig(zd, ZD1201_RID_CNFOWNMACADDR, 860 addr->sa_data, dev->addr_len, 1); 861 if (err) 862 return err; 863 memcpy(dev->dev_addr, addr->sa_data, dev->addr_len); 864 865 return zd1201_mac_reset(zd); 866 } 867 868 static struct iw_statistics *zd1201_get_wireless_stats(struct net_device *dev) 869 { 870 struct zd1201 *zd = netdev_priv(dev); 871 872 return &zd->iwstats; 873 } 874 875 static void zd1201_set_multicast(struct net_device *dev) 876 { 877 struct zd1201 *zd = netdev_priv(dev); 878 struct netdev_hw_addr *ha; 879 unsigned char reqbuf[ETH_ALEN*ZD1201_MAXMULTI]; 880 int i; 881 882 if (netdev_mc_count(dev) > ZD1201_MAXMULTI) 883 return; 884 885 i = 0; 886 netdev_for_each_mc_addr(ha, dev) 887 memcpy(reqbuf + i++ * ETH_ALEN, ha->addr, ETH_ALEN); 888 zd1201_setconfig(zd, ZD1201_RID_CNFGROUPADDRESS, reqbuf, 889 netdev_mc_count(dev) * ETH_ALEN, 0); 890 } 891 892 static int zd1201_config_commit(struct net_device *dev, 893 struct iw_request_info *info, struct iw_point *data, char *essid) 894 { 895 struct zd1201 *zd = netdev_priv(dev); 896 897 return zd1201_mac_reset(zd); 898 } 899 900 static int zd1201_get_name(struct net_device *dev, 901 struct iw_request_info *info, char *name, char *extra) 902 { 903 strcpy(name, "IEEE 802.11b"); 904 return 0; 905 } 906 907 static int zd1201_set_freq(struct net_device *dev, 908 struct iw_request_info *info, struct iw_freq *freq, char *extra) 909 { 910 struct zd1201 *zd = netdev_priv(dev); 911 short channel = 0; 912 int err; 913 914 if (freq->e == 0) 915 channel = freq->m; 916 else 917 channel = ieee80211_frequency_to_channel(freq->m); 918 919 err = zd1201_setconfig16(zd, ZD1201_RID_CNFOWNCHANNEL, channel); 920 if (err) 921 return err; 922 923 zd1201_mac_reset(zd); 924 925 return 0; 926 } 927 928 static int zd1201_get_freq(struct net_device *dev, 929 struct iw_request_info *info, struct iw_freq *freq, char *extra) 930 { 931 struct zd1201 *zd = netdev_priv(dev); 932 short channel; 933 int err; 934 935 err = zd1201_getconfig16(zd, ZD1201_RID_CNFOWNCHANNEL, &channel); 936 if (err) 937 return err; 938 freq->e = 0; 939 freq->m = channel; 940 941 return 0; 942 } 943 944 static int zd1201_set_mode(struct net_device *dev, 945 struct iw_request_info *info, __u32 *mode, char *extra) 946 { 947 struct zd1201 *zd = netdev_priv(dev); 948 short porttype, monitor = 0; 949 unsigned char buffer[IW_ESSID_MAX_SIZE+2]; 950 int err; 951 952 if (zd->ap) { 953 if (*mode != IW_MODE_MASTER) 954 return -EINVAL; 955 return 0; 956 } 957 958 err = zd1201_setconfig16(zd, ZD1201_RID_PROMISCUOUSMODE, 0); 959 if (err) 960 return err; 961 zd->dev->type = ARPHRD_ETHER; 962 switch(*mode) { 963 case IW_MODE_MONITOR: 964 monitor = 1; 965 zd->dev->type = ARPHRD_IEEE80211; 966 /* Make sure we are no longer associated with by 967 setting an 'impossible' essid. 968 (otherwise we mess up firmware) 969 */ 970 zd1201_join(zd, "\0-*#\0", 5); 971 /* Put port in pIBSS */ 972 case 8: /* No pseudo-IBSS in wireless extensions (yet) */ 973 porttype = ZD1201_PORTTYPE_PSEUDOIBSS; 974 break; 975 case IW_MODE_ADHOC: 976 porttype = ZD1201_PORTTYPE_IBSS; 977 break; 978 case IW_MODE_INFRA: 979 porttype = ZD1201_PORTTYPE_BSS; 980 break; 981 default: 982 return -EINVAL; 983 } 984 985 err = zd1201_setconfig16(zd, ZD1201_RID_CNFPORTTYPE, porttype); 986 if (err) 987 return err; 988 if (zd->monitor && !monitor) { 989 zd1201_disable(zd); 990 *(__le16 *)buffer = cpu_to_le16(zd->essidlen); 991 memcpy(buffer+2, zd->essid, zd->essidlen); 992 err = zd1201_setconfig(zd, ZD1201_RID_CNFDESIREDSSID, 993 buffer, IW_ESSID_MAX_SIZE+2, 1); 994 if (err) 995 return err; 996 } 997 zd->monitor = monitor; 998 /* If monitor mode is set we don't actually turn it on here since it 999 * is done during mac reset anyway (see zd1201_mac_enable). 1000 */ 1001 zd1201_mac_reset(zd); 1002 1003 return 0; 1004 } 1005 1006 static int zd1201_get_mode(struct net_device *dev, 1007 struct iw_request_info *info, __u32 *mode, char *extra) 1008 { 1009 struct zd1201 *zd = netdev_priv(dev); 1010 short porttype; 1011 int err; 1012 1013 err = zd1201_getconfig16(zd, ZD1201_RID_CNFPORTTYPE, &porttype); 1014 if (err) 1015 return err; 1016 switch(porttype) { 1017 case ZD1201_PORTTYPE_IBSS: 1018 *mode = IW_MODE_ADHOC; 1019 break; 1020 case ZD1201_PORTTYPE_BSS: 1021 *mode = IW_MODE_INFRA; 1022 break; 1023 case ZD1201_PORTTYPE_WDS: 1024 *mode = IW_MODE_REPEAT; 1025 break; 1026 case ZD1201_PORTTYPE_PSEUDOIBSS: 1027 *mode = 8;/* No Pseudo-IBSS... */ 1028 break; 1029 case ZD1201_PORTTYPE_AP: 1030 *mode = IW_MODE_MASTER; 1031 break; 1032 default: 1033 dev_dbg(&zd->usb->dev, "Unknown porttype: %d\n", 1034 porttype); 1035 *mode = IW_MODE_AUTO; 1036 } 1037 if (zd->monitor) 1038 *mode = IW_MODE_MONITOR; 1039 1040 return 0; 1041 } 1042 1043 static int zd1201_get_range(struct net_device *dev, 1044 struct iw_request_info *info, struct iw_point *wrq, char *extra) 1045 { 1046 struct iw_range *range = (struct iw_range *)extra; 1047 1048 wrq->length = sizeof(struct iw_range); 1049 memset(range, 0, sizeof(struct iw_range)); 1050 range->we_version_compiled = WIRELESS_EXT; 1051 range->we_version_source = WIRELESS_EXT; 1052 1053 range->max_qual.qual = 128; 1054 range->max_qual.level = 128; 1055 range->max_qual.noise = 128; 1056 range->max_qual.updated = 7; 1057 1058 range->encoding_size[0] = 5; 1059 range->encoding_size[1] = 13; 1060 range->num_encoding_sizes = 2; 1061 range->max_encoding_tokens = ZD1201_NUMKEYS; 1062 1063 range->num_bitrates = 4; 1064 range->bitrate[0] = 1000000; 1065 range->bitrate[1] = 2000000; 1066 range->bitrate[2] = 5500000; 1067 range->bitrate[3] = 11000000; 1068 1069 range->min_rts = 0; 1070 range->min_frag = ZD1201_FRAGMIN; 1071 range->max_rts = ZD1201_RTSMAX; 1072 range->min_frag = ZD1201_FRAGMAX; 1073 1074 return 0; 1075 } 1076 1077 /* Little bit of magic here: we only get the quality if we poll 1078 * for it, and we never get an actual request to trigger such 1079 * a poll. Therefore we 'assume' that the user will soon ask for 1080 * the stats after asking the bssid. 1081 */ 1082 static int zd1201_get_wap(struct net_device *dev, 1083 struct iw_request_info *info, struct sockaddr *ap_addr, char *extra) 1084 { 1085 struct zd1201 *zd = netdev_priv(dev); 1086 unsigned char buffer[6]; 1087 1088 if (!zd1201_getconfig(zd, ZD1201_RID_COMMSQUALITY, buffer, 6)) { 1089 /* Unfortunately the quality and noise reported is useless. 1090 they seem to be accumulators that increase until you 1091 read them, unless we poll on a fixed interval we can't 1092 use them 1093 */ 1094 /*zd->iwstats.qual.qual = le16_to_cpu(((__le16 *)buffer)[0]);*/ 1095 zd->iwstats.qual.level = le16_to_cpu(((__le16 *)buffer)[1]); 1096 /*zd->iwstats.qual.noise = le16_to_cpu(((__le16 *)buffer)[2]);*/ 1097 zd->iwstats.qual.updated = 2; 1098 } 1099 1100 return zd1201_getconfig(zd, ZD1201_RID_CURRENTBSSID, ap_addr->sa_data, 6); 1101 } 1102 1103 static int zd1201_set_scan(struct net_device *dev, 1104 struct iw_request_info *info, struct iw_point *srq, char *extra) 1105 { 1106 /* We do everything in get_scan */ 1107 return 0; 1108 } 1109 1110 static int zd1201_get_scan(struct net_device *dev, 1111 struct iw_request_info *info, struct iw_point *srq, char *extra) 1112 { 1113 struct zd1201 *zd = netdev_priv(dev); 1114 int err, i, j, enabled_save; 1115 struct iw_event iwe; 1116 char *cev = extra; 1117 char *end_buf = extra + IW_SCAN_MAX_DATA; 1118 1119 /* No scanning in AP mode */ 1120 if (zd->ap) 1121 return -EOPNOTSUPP; 1122 1123 /* Scan doesn't seem to work if disabled */ 1124 enabled_save = zd->mac_enabled; 1125 zd1201_enable(zd); 1126 1127 zd->rxdatas = 0; 1128 err = zd1201_docmd(zd, ZD1201_CMDCODE_INQUIRE, 1129 ZD1201_INQ_SCANRESULTS, 0, 0); 1130 if (err) 1131 return err; 1132 1133 wait_event_interruptible(zd->rxdataq, zd->rxdatas); 1134 if (!zd->rxlen) 1135 return -EIO; 1136 1137 if (le16_to_cpu(*(__le16*)&zd->rxdata[2]) != ZD1201_INQ_SCANRESULTS) 1138 return -EIO; 1139 1140 for(i=8; i<zd->rxlen; i+=62) { 1141 iwe.cmd = SIOCGIWAP; 1142 iwe.u.ap_addr.sa_family = ARPHRD_ETHER; 1143 memcpy(iwe.u.ap_addr.sa_data, zd->rxdata+i+6, 6); 1144 cev = iwe_stream_add_event(info, cev, end_buf, 1145 &iwe, IW_EV_ADDR_LEN); 1146 1147 iwe.cmd = SIOCGIWESSID; 1148 iwe.u.data.length = zd->rxdata[i+16]; 1149 iwe.u.data.flags = 1; 1150 cev = iwe_stream_add_point(info, cev, end_buf, 1151 &iwe, zd->rxdata+i+18); 1152 1153 iwe.cmd = SIOCGIWMODE; 1154 if (zd->rxdata[i+14]&0x01) 1155 iwe.u.mode = IW_MODE_MASTER; 1156 else 1157 iwe.u.mode = IW_MODE_ADHOC; 1158 cev = iwe_stream_add_event(info, cev, end_buf, 1159 &iwe, IW_EV_UINT_LEN); 1160 1161 iwe.cmd = SIOCGIWFREQ; 1162 iwe.u.freq.m = zd->rxdata[i+0]; 1163 iwe.u.freq.e = 0; 1164 cev = iwe_stream_add_event(info, cev, end_buf, 1165 &iwe, IW_EV_FREQ_LEN); 1166 1167 iwe.cmd = SIOCGIWRATE; 1168 iwe.u.bitrate.fixed = 0; 1169 iwe.u.bitrate.disabled = 0; 1170 for (j=0; j<10; j++) if (zd->rxdata[i+50+j]) { 1171 iwe.u.bitrate.value = (zd->rxdata[i+50+j]&0x7f)*500000; 1172 cev = iwe_stream_add_event(info, cev, end_buf, 1173 &iwe, IW_EV_PARAM_LEN); 1174 } 1175 1176 iwe.cmd = SIOCGIWENCODE; 1177 iwe.u.data.length = 0; 1178 if (zd->rxdata[i+14]&0x10) 1179 iwe.u.data.flags = IW_ENCODE_ENABLED; 1180 else 1181 iwe.u.data.flags = IW_ENCODE_DISABLED; 1182 cev = iwe_stream_add_point(info, cev, end_buf, &iwe, NULL); 1183 1184 iwe.cmd = IWEVQUAL; 1185 iwe.u.qual.qual = zd->rxdata[i+4]; 1186 iwe.u.qual.noise= zd->rxdata[i+2]/10-100; 1187 iwe.u.qual.level = (256+zd->rxdata[i+4]*100)/255-100; 1188 iwe.u.qual.updated = 7; 1189 cev = iwe_stream_add_event(info, cev, end_buf, 1190 &iwe, IW_EV_QUAL_LEN); 1191 } 1192 1193 if (!enabled_save) 1194 zd1201_disable(zd); 1195 1196 srq->length = cev - extra; 1197 srq->flags = 0; 1198 1199 return 0; 1200 } 1201 1202 static int zd1201_set_essid(struct net_device *dev, 1203 struct iw_request_info *info, struct iw_point *data, char *essid) 1204 { 1205 struct zd1201 *zd = netdev_priv(dev); 1206 1207 if (data->length > IW_ESSID_MAX_SIZE) 1208 return -EINVAL; 1209 if (data->length < 1) 1210 data->length = 1; 1211 zd->essidlen = data->length; 1212 memset(zd->essid, 0, IW_ESSID_MAX_SIZE+1); 1213 memcpy(zd->essid, essid, data->length); 1214 return zd1201_join(zd, zd->essid, zd->essidlen); 1215 } 1216 1217 static int zd1201_get_essid(struct net_device *dev, 1218 struct iw_request_info *info, struct iw_point *data, char *essid) 1219 { 1220 struct zd1201 *zd = netdev_priv(dev); 1221 1222 memcpy(essid, zd->essid, zd->essidlen); 1223 data->flags = 1; 1224 data->length = zd->essidlen; 1225 1226 return 0; 1227 } 1228 1229 static int zd1201_get_nick(struct net_device *dev, struct iw_request_info *info, 1230 struct iw_point *data, char *nick) 1231 { 1232 strcpy(nick, "zd1201"); 1233 data->flags = 1; 1234 data->length = strlen(nick); 1235 return 0; 1236 } 1237 1238 static int zd1201_set_rate(struct net_device *dev, 1239 struct iw_request_info *info, struct iw_param *rrq, char *extra) 1240 { 1241 struct zd1201 *zd = netdev_priv(dev); 1242 short rate; 1243 int err; 1244 1245 switch (rrq->value) { 1246 case 1000000: 1247 rate = ZD1201_RATEB1; 1248 break; 1249 case 2000000: 1250 rate = ZD1201_RATEB2; 1251 break; 1252 case 5500000: 1253 rate = ZD1201_RATEB5; 1254 break; 1255 case 11000000: 1256 default: 1257 rate = ZD1201_RATEB11; 1258 break; 1259 } 1260 if (!rrq->fixed) { /* Also enable all lower bitrates */ 1261 rate |= rate-1; 1262 } 1263 1264 err = zd1201_setconfig16(zd, ZD1201_RID_TXRATECNTL, rate); 1265 if (err) 1266 return err; 1267 1268 return zd1201_mac_reset(zd); 1269 } 1270 1271 static int zd1201_get_rate(struct net_device *dev, 1272 struct iw_request_info *info, struct iw_param *rrq, char *extra) 1273 { 1274 struct zd1201 *zd = netdev_priv(dev); 1275 short rate; 1276 int err; 1277 1278 err = zd1201_getconfig16(zd, ZD1201_RID_CURRENTTXRATE, &rate); 1279 if (err) 1280 return err; 1281 1282 switch(rate) { 1283 case 1: 1284 rrq->value = 1000000; 1285 break; 1286 case 2: 1287 rrq->value = 2000000; 1288 break; 1289 case 5: 1290 rrq->value = 5500000; 1291 break; 1292 case 11: 1293 rrq->value = 11000000; 1294 break; 1295 default: 1296 rrq->value = 0; 1297 } 1298 rrq->fixed = 0; 1299 rrq->disabled = 0; 1300 1301 return 0; 1302 } 1303 1304 static int zd1201_set_rts(struct net_device *dev, struct iw_request_info *info, 1305 struct iw_param *rts, char *extra) 1306 { 1307 struct zd1201 *zd = netdev_priv(dev); 1308 int err; 1309 short val = rts->value; 1310 1311 if (rts->disabled || !rts->fixed) 1312 val = ZD1201_RTSMAX; 1313 if (val > ZD1201_RTSMAX) 1314 return -EINVAL; 1315 if (val < 0) 1316 return -EINVAL; 1317 1318 err = zd1201_setconfig16(zd, ZD1201_RID_CNFRTSTHRESHOLD, val); 1319 if (err) 1320 return err; 1321 return zd1201_mac_reset(zd); 1322 } 1323 1324 static int zd1201_get_rts(struct net_device *dev, struct iw_request_info *info, 1325 struct iw_param *rts, char *extra) 1326 { 1327 struct zd1201 *zd = netdev_priv(dev); 1328 short rtst; 1329 int err; 1330 1331 err = zd1201_getconfig16(zd, ZD1201_RID_CNFRTSTHRESHOLD, &rtst); 1332 if (err) 1333 return err; 1334 rts->value = rtst; 1335 rts->disabled = (rts->value == ZD1201_RTSMAX); 1336 rts->fixed = 1; 1337 1338 return 0; 1339 } 1340 1341 static int zd1201_set_frag(struct net_device *dev, struct iw_request_info *info, 1342 struct iw_param *frag, char *extra) 1343 { 1344 struct zd1201 *zd = netdev_priv(dev); 1345 int err; 1346 short val = frag->value; 1347 1348 if (frag->disabled || !frag->fixed) 1349 val = ZD1201_FRAGMAX; 1350 if (val > ZD1201_FRAGMAX) 1351 return -EINVAL; 1352 if (val < ZD1201_FRAGMIN) 1353 return -EINVAL; 1354 if (val & 1) 1355 return -EINVAL; 1356 err = zd1201_setconfig16(zd, ZD1201_RID_CNFFRAGTHRESHOLD, val); 1357 if (err) 1358 return err; 1359 return zd1201_mac_reset(zd); 1360 } 1361 1362 static int zd1201_get_frag(struct net_device *dev, struct iw_request_info *info, 1363 struct iw_param *frag, char *extra) 1364 { 1365 struct zd1201 *zd = netdev_priv(dev); 1366 short fragt; 1367 int err; 1368 1369 err = zd1201_getconfig16(zd, ZD1201_RID_CNFFRAGTHRESHOLD, &fragt); 1370 if (err) 1371 return err; 1372 frag->value = fragt; 1373 frag->disabled = (frag->value == ZD1201_FRAGMAX); 1374 frag->fixed = 1; 1375 1376 return 0; 1377 } 1378 1379 static int zd1201_set_retry(struct net_device *dev, 1380 struct iw_request_info *info, struct iw_param *rrq, char *extra) 1381 { 1382 return 0; 1383 } 1384 1385 static int zd1201_get_retry(struct net_device *dev, 1386 struct iw_request_info *info, struct iw_param *rrq, char *extra) 1387 { 1388 return 0; 1389 } 1390 1391 static int zd1201_set_encode(struct net_device *dev, 1392 struct iw_request_info *info, struct iw_point *erq, char *key) 1393 { 1394 struct zd1201 *zd = netdev_priv(dev); 1395 short i; 1396 int err, rid; 1397 1398 if (erq->length > ZD1201_MAXKEYLEN) 1399 return -EINVAL; 1400 1401 i = (erq->flags & IW_ENCODE_INDEX)-1; 1402 if (i == -1) { 1403 err = zd1201_getconfig16(zd,ZD1201_RID_CNFDEFAULTKEYID,&i); 1404 if (err) 1405 return err; 1406 } else { 1407 err = zd1201_setconfig16(zd, ZD1201_RID_CNFDEFAULTKEYID, i); 1408 if (err) 1409 return err; 1410 } 1411 1412 if (i < 0 || i >= ZD1201_NUMKEYS) 1413 return -EINVAL; 1414 1415 rid = ZD1201_RID_CNFDEFAULTKEY0 + i; 1416 err = zd1201_setconfig(zd, rid, key, erq->length, 1); 1417 if (err) 1418 return err; 1419 zd->encode_keylen[i] = erq->length; 1420 memcpy(zd->encode_keys[i], key, erq->length); 1421 1422 i=0; 1423 if (!(erq->flags & IW_ENCODE_DISABLED & IW_ENCODE_MODE)) { 1424 i |= 0x01; 1425 zd->encode_enabled = 1; 1426 } else 1427 zd->encode_enabled = 0; 1428 if (erq->flags & IW_ENCODE_RESTRICTED & IW_ENCODE_MODE) { 1429 i |= 0x02; 1430 zd->encode_restricted = 1; 1431 } else 1432 zd->encode_restricted = 0; 1433 err = zd1201_setconfig16(zd, ZD1201_RID_CNFWEBFLAGS, i); 1434 if (err) 1435 return err; 1436 1437 if (zd->encode_enabled) 1438 i = ZD1201_CNFAUTHENTICATION_SHAREDKEY; 1439 else 1440 i = ZD1201_CNFAUTHENTICATION_OPENSYSTEM; 1441 err = zd1201_setconfig16(zd, ZD1201_RID_CNFAUTHENTICATION, i); 1442 if (err) 1443 return err; 1444 1445 return zd1201_mac_reset(zd); 1446 } 1447 1448 static int zd1201_get_encode(struct net_device *dev, 1449 struct iw_request_info *info, struct iw_point *erq, char *key) 1450 { 1451 struct zd1201 *zd = netdev_priv(dev); 1452 short i; 1453 int err; 1454 1455 if (zd->encode_enabled) 1456 erq->flags = IW_ENCODE_ENABLED; 1457 else 1458 erq->flags = IW_ENCODE_DISABLED; 1459 if (zd->encode_restricted) 1460 erq->flags |= IW_ENCODE_RESTRICTED; 1461 else 1462 erq->flags |= IW_ENCODE_OPEN; 1463 1464 i = (erq->flags & IW_ENCODE_INDEX) -1; 1465 if (i == -1) { 1466 err = zd1201_getconfig16(zd, ZD1201_RID_CNFDEFAULTKEYID, &i); 1467 if (err) 1468 return err; 1469 } 1470 if (i<0 || i>= ZD1201_NUMKEYS) 1471 return -EINVAL; 1472 1473 erq->flags |= i+1; 1474 1475 erq->length = zd->encode_keylen[i]; 1476 memcpy(key, zd->encode_keys[i], erq->length); 1477 1478 return 0; 1479 } 1480 1481 static int zd1201_set_power(struct net_device *dev, 1482 struct iw_request_info *info, struct iw_param *vwrq, char *extra) 1483 { 1484 struct zd1201 *zd = netdev_priv(dev); 1485 short enabled, duration, level; 1486 int err; 1487 1488 enabled = vwrq->disabled ? 0 : 1; 1489 if (enabled) { 1490 if (vwrq->flags & IW_POWER_PERIOD) { 1491 duration = vwrq->value; 1492 err = zd1201_setconfig16(zd, 1493 ZD1201_RID_CNFMAXSLEEPDURATION, duration); 1494 if (err) 1495 return err; 1496 goto out; 1497 } 1498 if (vwrq->flags & IW_POWER_TIMEOUT) { 1499 err = zd1201_getconfig16(zd, 1500 ZD1201_RID_CNFMAXSLEEPDURATION, &duration); 1501 if (err) 1502 return err; 1503 level = vwrq->value * 4 / duration; 1504 if (level > 4) 1505 level = 4; 1506 if (level < 0) 1507 level = 0; 1508 err = zd1201_setconfig16(zd, ZD1201_RID_CNFPMEPS, 1509 level); 1510 if (err) 1511 return err; 1512 goto out; 1513 } 1514 return -EINVAL; 1515 } 1516 out: 1517 return zd1201_setconfig16(zd, ZD1201_RID_CNFPMENABLED, enabled); 1518 } 1519 1520 static int zd1201_get_power(struct net_device *dev, 1521 struct iw_request_info *info, struct iw_param *vwrq, char *extra) 1522 { 1523 struct zd1201 *zd = netdev_priv(dev); 1524 short enabled, level, duration; 1525 int err; 1526 1527 err = zd1201_getconfig16(zd, ZD1201_RID_CNFPMENABLED, &enabled); 1528 if (err) 1529 return err; 1530 err = zd1201_getconfig16(zd, ZD1201_RID_CNFPMEPS, &level); 1531 if (err) 1532 return err; 1533 err = zd1201_getconfig16(zd, ZD1201_RID_CNFMAXSLEEPDURATION, &duration); 1534 if (err) 1535 return err; 1536 vwrq->disabled = enabled ? 0 : 1; 1537 if (vwrq->flags & IW_POWER_TYPE) { 1538 if (vwrq->flags & IW_POWER_PERIOD) { 1539 vwrq->value = duration; 1540 vwrq->flags = IW_POWER_PERIOD; 1541 } else { 1542 vwrq->value = duration * level / 4; 1543 vwrq->flags = IW_POWER_TIMEOUT; 1544 } 1545 } 1546 if (vwrq->flags & IW_POWER_MODE) { 1547 if (enabled && level) 1548 vwrq->flags = IW_POWER_UNICAST_R; 1549 else 1550 vwrq->flags = IW_POWER_ALL_R; 1551 } 1552 1553 return 0; 1554 } 1555 1556 1557 static const iw_handler zd1201_iw_handler[] = 1558 { 1559 (iw_handler) zd1201_config_commit, /* SIOCSIWCOMMIT */ 1560 (iw_handler) zd1201_get_name, /* SIOCGIWNAME */ 1561 (iw_handler) NULL, /* SIOCSIWNWID */ 1562 (iw_handler) NULL, /* SIOCGIWNWID */ 1563 (iw_handler) zd1201_set_freq, /* SIOCSIWFREQ */ 1564 (iw_handler) zd1201_get_freq, /* SIOCGIWFREQ */ 1565 (iw_handler) zd1201_set_mode, /* SIOCSIWMODE */ 1566 (iw_handler) zd1201_get_mode, /* SIOCGIWMODE */ 1567 (iw_handler) NULL, /* SIOCSIWSENS */ 1568 (iw_handler) NULL, /* SIOCGIWSENS */ 1569 (iw_handler) NULL, /* SIOCSIWRANGE */ 1570 (iw_handler) zd1201_get_range, /* SIOCGIWRANGE */ 1571 (iw_handler) NULL, /* SIOCSIWPRIV */ 1572 (iw_handler) NULL, /* SIOCGIWPRIV */ 1573 (iw_handler) NULL, /* SIOCSIWSTATS */ 1574 (iw_handler) NULL, /* SIOCGIWSTATS */ 1575 (iw_handler) NULL, /* SIOCSIWSPY */ 1576 (iw_handler) NULL, /* SIOCGIWSPY */ 1577 (iw_handler) NULL, /* -- hole -- */ 1578 (iw_handler) NULL, /* -- hole -- */ 1579 (iw_handler) NULL/*zd1201_set_wap*/, /* SIOCSIWAP */ 1580 (iw_handler) zd1201_get_wap, /* SIOCGIWAP */ 1581 (iw_handler) NULL, /* -- hole -- */ 1582 (iw_handler) NULL, /* SIOCGIWAPLIST */ 1583 (iw_handler) zd1201_set_scan, /* SIOCSIWSCAN */ 1584 (iw_handler) zd1201_get_scan, /* SIOCGIWSCAN */ 1585 (iw_handler) zd1201_set_essid, /* SIOCSIWESSID */ 1586 (iw_handler) zd1201_get_essid, /* SIOCGIWESSID */ 1587 (iw_handler) NULL, /* SIOCSIWNICKN */ 1588 (iw_handler) zd1201_get_nick, /* SIOCGIWNICKN */ 1589 (iw_handler) NULL, /* -- hole -- */ 1590 (iw_handler) NULL, /* -- hole -- */ 1591 (iw_handler) zd1201_set_rate, /* SIOCSIWRATE */ 1592 (iw_handler) zd1201_get_rate, /* SIOCGIWRATE */ 1593 (iw_handler) zd1201_set_rts, /* SIOCSIWRTS */ 1594 (iw_handler) zd1201_get_rts, /* SIOCGIWRTS */ 1595 (iw_handler) zd1201_set_frag, /* SIOCSIWFRAG */ 1596 (iw_handler) zd1201_get_frag, /* SIOCGIWFRAG */ 1597 (iw_handler) NULL, /* SIOCSIWTXPOW */ 1598 (iw_handler) NULL, /* SIOCGIWTXPOW */ 1599 (iw_handler) zd1201_set_retry, /* SIOCSIWRETRY */ 1600 (iw_handler) zd1201_get_retry, /* SIOCGIWRETRY */ 1601 (iw_handler) zd1201_set_encode, /* SIOCSIWENCODE */ 1602 (iw_handler) zd1201_get_encode, /* SIOCGIWENCODE */ 1603 (iw_handler) zd1201_set_power, /* SIOCSIWPOWER */ 1604 (iw_handler) zd1201_get_power, /* SIOCGIWPOWER */ 1605 }; 1606 1607 static int zd1201_set_hostauth(struct net_device *dev, 1608 struct iw_request_info *info, struct iw_param *rrq, char *extra) 1609 { 1610 struct zd1201 *zd = netdev_priv(dev); 1611 1612 if (!zd->ap) 1613 return -EOPNOTSUPP; 1614 1615 return zd1201_setconfig16(zd, ZD1201_RID_CNFHOSTAUTH, rrq->value); 1616 } 1617 1618 static int zd1201_get_hostauth(struct net_device *dev, 1619 struct iw_request_info *info, struct iw_param *rrq, char *extra) 1620 { 1621 struct zd1201 *zd = netdev_priv(dev); 1622 short hostauth; 1623 int err; 1624 1625 if (!zd->ap) 1626 return -EOPNOTSUPP; 1627 1628 err = zd1201_getconfig16(zd, ZD1201_RID_CNFHOSTAUTH, &hostauth); 1629 if (err) 1630 return err; 1631 rrq->value = hostauth; 1632 rrq->fixed = 1; 1633 1634 return 0; 1635 } 1636 1637 static int zd1201_auth_sta(struct net_device *dev, 1638 struct iw_request_info *info, struct sockaddr *sta, char *extra) 1639 { 1640 struct zd1201 *zd = netdev_priv(dev); 1641 unsigned char buffer[10]; 1642 1643 if (!zd->ap) 1644 return -EOPNOTSUPP; 1645 1646 memcpy(buffer, sta->sa_data, ETH_ALEN); 1647 *(short*)(buffer+6) = 0; /* 0==success, 1==failure */ 1648 *(short*)(buffer+8) = 0; 1649 1650 return zd1201_setconfig(zd, ZD1201_RID_AUTHENTICATESTA, buffer, 10, 1); 1651 } 1652 1653 static int zd1201_set_maxassoc(struct net_device *dev, 1654 struct iw_request_info *info, struct iw_param *rrq, char *extra) 1655 { 1656 struct zd1201 *zd = netdev_priv(dev); 1657 int err; 1658 1659 if (!zd->ap) 1660 return -EOPNOTSUPP; 1661 1662 err = zd1201_setconfig16(zd, ZD1201_RID_CNFMAXASSOCSTATIONS, rrq->value); 1663 if (err) 1664 return err; 1665 return 0; 1666 } 1667 1668 static int zd1201_get_maxassoc(struct net_device *dev, 1669 struct iw_request_info *info, struct iw_param *rrq, char *extra) 1670 { 1671 struct zd1201 *zd = netdev_priv(dev); 1672 short maxassoc; 1673 int err; 1674 1675 if (!zd->ap) 1676 return -EOPNOTSUPP; 1677 1678 err = zd1201_getconfig16(zd, ZD1201_RID_CNFMAXASSOCSTATIONS, &maxassoc); 1679 if (err) 1680 return err; 1681 rrq->value = maxassoc; 1682 rrq->fixed = 1; 1683 1684 return 0; 1685 } 1686 1687 static const iw_handler zd1201_private_handler[] = { 1688 (iw_handler) zd1201_set_hostauth, /* ZD1201SIWHOSTAUTH */ 1689 (iw_handler) zd1201_get_hostauth, /* ZD1201GIWHOSTAUTH */ 1690 (iw_handler) zd1201_auth_sta, /* ZD1201SIWAUTHSTA */ 1691 (iw_handler) NULL, /* nothing to get */ 1692 (iw_handler) zd1201_set_maxassoc, /* ZD1201SIMAXASSOC */ 1693 (iw_handler) zd1201_get_maxassoc, /* ZD1201GIMAXASSOC */ 1694 }; 1695 1696 static const struct iw_priv_args zd1201_private_args[] = { 1697 { ZD1201SIWHOSTAUTH, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 1698 IW_PRIV_TYPE_NONE, "sethostauth" }, 1699 { ZD1201GIWHOSTAUTH, IW_PRIV_TYPE_NONE, 1700 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "gethostauth" }, 1701 { ZD1201SIWAUTHSTA, IW_PRIV_TYPE_ADDR | IW_PRIV_SIZE_FIXED | 1, 1702 IW_PRIV_TYPE_NONE, "authstation" }, 1703 { ZD1201SIWMAXASSOC, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 1704 IW_PRIV_TYPE_NONE, "setmaxassoc" }, 1705 { ZD1201GIWMAXASSOC, IW_PRIV_TYPE_NONE, 1706 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getmaxassoc" }, 1707 }; 1708 1709 static const struct iw_handler_def zd1201_iw_handlers = { 1710 .num_standard = ARRAY_SIZE(zd1201_iw_handler), 1711 .num_private = ARRAY_SIZE(zd1201_private_handler), 1712 .num_private_args = ARRAY_SIZE(zd1201_private_args), 1713 .standard = (iw_handler *)zd1201_iw_handler, 1714 .private = (iw_handler *)zd1201_private_handler, 1715 .private_args = (struct iw_priv_args *) zd1201_private_args, 1716 .get_wireless_stats = zd1201_get_wireless_stats, 1717 }; 1718 1719 static const struct net_device_ops zd1201_netdev_ops = { 1720 .ndo_open = zd1201_net_open, 1721 .ndo_stop = zd1201_net_stop, 1722 .ndo_start_xmit = zd1201_hard_start_xmit, 1723 .ndo_tx_timeout = zd1201_tx_timeout, 1724 .ndo_set_rx_mode = zd1201_set_multicast, 1725 .ndo_set_mac_address = zd1201_set_mac_address, 1726 .ndo_validate_addr = eth_validate_addr, 1727 }; 1728 1729 static int zd1201_probe(struct usb_interface *interface, 1730 const struct usb_device_id *id) 1731 { 1732 struct zd1201 *zd; 1733 struct net_device *dev; 1734 struct usb_device *usb; 1735 int err; 1736 short porttype; 1737 char buf[IW_ESSID_MAX_SIZE+2]; 1738 1739 usb = interface_to_usbdev(interface); 1740 1741 dev = alloc_etherdev(sizeof(*zd)); 1742 if (!dev) 1743 return -ENOMEM; 1744 zd = netdev_priv(dev); 1745 zd->dev = dev; 1746 1747 zd->ap = ap; 1748 zd->usb = usb; 1749 zd->removed = 0; 1750 init_waitqueue_head(&zd->rxdataq); 1751 INIT_HLIST_HEAD(&zd->fraglist); 1752 1753 err = zd1201_fw_upload(usb, zd->ap); 1754 if (err) { 1755 dev_err(&usb->dev, "zd1201 firmware upload failed: %d\n", err); 1756 goto err_zd; 1757 } 1758 1759 zd->endp_in = 1; 1760 zd->endp_out = 1; 1761 zd->endp_out2 = 2; 1762 zd->rx_urb = usb_alloc_urb(0, GFP_KERNEL); 1763 zd->tx_urb = usb_alloc_urb(0, GFP_KERNEL); 1764 if (!zd->rx_urb || !zd->tx_urb) { 1765 err = -ENOMEM; 1766 goto err_zd; 1767 } 1768 1769 mdelay(100); 1770 err = zd1201_drvr_start(zd); 1771 if (err) 1772 goto err_zd; 1773 1774 err = zd1201_setconfig16(zd, ZD1201_RID_CNFMAXDATALEN, 2312); 1775 if (err) 1776 goto err_start; 1777 1778 err = zd1201_setconfig16(zd, ZD1201_RID_TXRATECNTL, 1779 ZD1201_RATEB1 | ZD1201_RATEB2 | ZD1201_RATEB5 | ZD1201_RATEB11); 1780 if (err) 1781 goto err_start; 1782 1783 dev->netdev_ops = &zd1201_netdev_ops; 1784 dev->wireless_handlers = &zd1201_iw_handlers; 1785 dev->watchdog_timeo = ZD1201_TX_TIMEOUT; 1786 strcpy(dev->name, "wlan%d"); 1787 1788 err = zd1201_getconfig(zd, ZD1201_RID_CNFOWNMACADDR, 1789 dev->dev_addr, dev->addr_len); 1790 if (err) 1791 goto err_start; 1792 1793 /* Set wildcard essid to match zd->essid */ 1794 *(__le16 *)buf = cpu_to_le16(0); 1795 err = zd1201_setconfig(zd, ZD1201_RID_CNFDESIREDSSID, buf, 1796 IW_ESSID_MAX_SIZE+2, 1); 1797 if (err) 1798 goto err_start; 1799 1800 if (zd->ap) 1801 porttype = ZD1201_PORTTYPE_AP; 1802 else 1803 porttype = ZD1201_PORTTYPE_BSS; 1804 err = zd1201_setconfig16(zd, ZD1201_RID_CNFPORTTYPE, porttype); 1805 if (err) 1806 goto err_start; 1807 1808 SET_NETDEV_DEV(dev, &usb->dev); 1809 1810 err = register_netdev(dev); 1811 if (err) 1812 goto err_start; 1813 dev_info(&usb->dev, "%s: ZD1201 USB Wireless interface\n", 1814 dev->name); 1815 1816 usb_set_intfdata(interface, zd); 1817 zd1201_enable(zd); /* zd1201 likes to startup enabled, */ 1818 zd1201_disable(zd); /* interfering with all the wifis in range */ 1819 return 0; 1820 1821 err_start: 1822 /* Leave the device in reset state */ 1823 zd1201_docmd(zd, ZD1201_CMDCODE_INIT, 0, 0, 0); 1824 err_zd: 1825 usb_free_urb(zd->tx_urb); 1826 usb_free_urb(zd->rx_urb); 1827 free_netdev(dev); 1828 return err; 1829 } 1830 1831 static void zd1201_disconnect(struct usb_interface *interface) 1832 { 1833 struct zd1201 *zd = usb_get_intfdata(interface); 1834 struct hlist_node *node2; 1835 struct zd1201_frag *frag; 1836 1837 if (!zd) 1838 return; 1839 usb_set_intfdata(interface, NULL); 1840 1841 hlist_for_each_entry_safe(frag, node2, &zd->fraglist, fnode) { 1842 hlist_del_init(&frag->fnode); 1843 kfree_skb(frag->skb); 1844 kfree(frag); 1845 } 1846 1847 if (zd->tx_urb) { 1848 usb_kill_urb(zd->tx_urb); 1849 usb_free_urb(zd->tx_urb); 1850 } 1851 if (zd->rx_urb) { 1852 usb_kill_urb(zd->rx_urb); 1853 usb_free_urb(zd->rx_urb); 1854 } 1855 1856 if (zd->dev) { 1857 unregister_netdev(zd->dev); 1858 free_netdev(zd->dev); 1859 } 1860 } 1861 1862 #ifdef CONFIG_PM 1863 1864 static int zd1201_suspend(struct usb_interface *interface, 1865 pm_message_t message) 1866 { 1867 struct zd1201 *zd = usb_get_intfdata(interface); 1868 1869 netif_device_detach(zd->dev); 1870 1871 zd->was_enabled = zd->mac_enabled; 1872 1873 if (zd->was_enabled) 1874 return zd1201_disable(zd); 1875 else 1876 return 0; 1877 } 1878 1879 static int zd1201_resume(struct usb_interface *interface) 1880 { 1881 struct zd1201 *zd = usb_get_intfdata(interface); 1882 1883 if (!zd || !zd->dev) 1884 return -ENODEV; 1885 1886 netif_device_attach(zd->dev); 1887 1888 if (zd->was_enabled) 1889 return zd1201_enable(zd); 1890 else 1891 return 0; 1892 } 1893 1894 #else 1895 1896 #define zd1201_suspend NULL 1897 #define zd1201_resume NULL 1898 1899 #endif 1900 1901 static struct usb_driver zd1201_usb = { 1902 .name = "zd1201", 1903 .probe = zd1201_probe, 1904 .disconnect = zd1201_disconnect, 1905 .id_table = zd1201_table, 1906 .suspend = zd1201_suspend, 1907 .resume = zd1201_resume, 1908 .disable_hub_initiated_lpm = 1, 1909 }; 1910 1911 module_usb_driver(zd1201_usb); 1912