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 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, framelen, copylen; 234 framelen = le16_to_cpu(*(__le16*)&data[4]); 235 infotype = le16_to_cpu(*(__le16*)&data[6]); 236 237 if (infotype == ZD1201_INF_LINKSTATUS) { 238 short linkstatus; 239 240 linkstatus = le16_to_cpu(*(__le16*)&data[8]); 241 switch(linkstatus) { 242 case 1: 243 netif_carrier_on(zd->dev); 244 break; 245 case 2: 246 netif_carrier_off(zd->dev); 247 break; 248 case 3: 249 netif_carrier_off(zd->dev); 250 break; 251 case 4: 252 netif_carrier_on(zd->dev); 253 break; 254 default: 255 netif_carrier_off(zd->dev); 256 } 257 goto resubmit; 258 } 259 if (infotype == ZD1201_INF_ASSOCSTATUS) { 260 short status = le16_to_cpu(*(__le16*)(data+8)); 261 int event; 262 union iwreq_data wrqu; 263 264 switch (status) { 265 case ZD1201_ASSOCSTATUS_STAASSOC: 266 case ZD1201_ASSOCSTATUS_REASSOC: 267 event = IWEVREGISTERED; 268 break; 269 case ZD1201_ASSOCSTATUS_DISASSOC: 270 case ZD1201_ASSOCSTATUS_ASSOCFAIL: 271 case ZD1201_ASSOCSTATUS_AUTHFAIL: 272 default: 273 event = IWEVEXPIRED; 274 } 275 memcpy(wrqu.addr.sa_data, data+10, ETH_ALEN); 276 wrqu.addr.sa_family = ARPHRD_ETHER; 277 278 /* Send event to user space */ 279 wireless_send_event(zd->dev, event, &wrqu, NULL); 280 281 goto resubmit; 282 } 283 if (infotype == ZD1201_INF_AUTHREQ) { 284 union iwreq_data wrqu; 285 286 memcpy(wrqu.addr.sa_data, data+8, ETH_ALEN); 287 wrqu.addr.sa_family = ARPHRD_ETHER; 288 /* There isn't a event that trully fits this request. 289 We assume that userspace will be smart enough to 290 see a new station being expired and sends back a 291 authstation ioctl to authorize it. */ 292 wireless_send_event(zd->dev, IWEVEXPIRED, &wrqu, NULL); 293 goto resubmit; 294 } 295 /* Other infotypes are handled outside this handler */ 296 zd->rxlen = 0; 297 while (i < urb->actual_length) { 298 copylen = le16_to_cpu(*(__le16*)&data[i+2]); 299 /* Sanity check, sometimes we get junk */ 300 if (copylen+zd->rxlen > sizeof(zd->rxdata)) 301 break; 302 memcpy(zd->rxdata+zd->rxlen, data+i+4, copylen); 303 zd->rxlen += copylen; 304 i += 64; 305 } 306 if (i >= urb->actual_length) { 307 zd->rxdatas = 1; 308 wake_up(&zd->rxdataq); 309 } 310 goto resubmit; 311 } 312 /* Actual data */ 313 if (data[urb->actual_length-1] == ZD1201_PACKET_RXDATA) { 314 int datalen = urb->actual_length-1; 315 unsigned short len, fc, seq; 316 317 len = ntohs(*(__be16 *)&data[datalen-2]); 318 if (len>datalen) 319 len=datalen; 320 fc = le16_to_cpu(*(__le16 *)&data[datalen-16]); 321 seq = le16_to_cpu(*(__le16 *)&data[datalen-24]); 322 323 if (zd->monitor) { 324 if (datalen < 24) 325 goto resubmit; 326 if (!(skb = dev_alloc_skb(datalen+24))) 327 goto resubmit; 328 329 memcpy(skb_put(skb, 2), &data[datalen-16], 2); 330 memcpy(skb_put(skb, 2), &data[datalen-2], 2); 331 memcpy(skb_put(skb, 6), &data[datalen-14], 6); 332 memcpy(skb_put(skb, 6), &data[datalen-22], 6); 333 memcpy(skb_put(skb, 6), &data[datalen-8], 6); 334 memcpy(skb_put(skb, 2), &data[datalen-24], 2); 335 memcpy(skb_put(skb, len), data, len); 336 skb->protocol = eth_type_trans(skb, zd->dev); 337 zd->dev->stats.rx_packets++; 338 zd->dev->stats.rx_bytes += skb->len; 339 netif_rx(skb); 340 goto resubmit; 341 } 342 343 if ((seq & IEEE80211_SCTL_FRAG) || 344 (fc & IEEE80211_FCTL_MOREFRAGS)) { 345 struct zd1201_frag *frag = NULL; 346 char *ptr; 347 348 if (datalen<14) 349 goto resubmit; 350 if ((seq & IEEE80211_SCTL_FRAG) == 0) { 351 frag = kmalloc(sizeof(*frag), GFP_ATOMIC); 352 if (!frag) 353 goto resubmit; 354 skb = dev_alloc_skb(IEEE80211_MAX_DATA_LEN +14+2); 355 if (!skb) { 356 kfree(frag); 357 goto resubmit; 358 } 359 frag->skb = skb; 360 frag->seq = seq & IEEE80211_SCTL_SEQ; 361 skb_reserve(skb, 2); 362 memcpy(skb_put(skb, 12), &data[datalen-14], 12); 363 memcpy(skb_put(skb, 2), &data[6], 2); 364 memcpy(skb_put(skb, len), data+8, len); 365 hlist_add_head(&frag->fnode, &zd->fraglist); 366 goto resubmit; 367 } 368 hlist_for_each_entry(frag, &zd->fraglist, fnode) 369 if (frag->seq == (seq&IEEE80211_SCTL_SEQ)) 370 break; 371 if (!frag) 372 goto resubmit; 373 skb = frag->skb; 374 ptr = skb_put(skb, len); 375 if (ptr) 376 memcpy(ptr, data+8, len); 377 if (fc & IEEE80211_FCTL_MOREFRAGS) 378 goto resubmit; 379 hlist_del_init(&frag->fnode); 380 kfree(frag); 381 } else { 382 if (datalen<14) 383 goto resubmit; 384 skb = dev_alloc_skb(len + 14 + 2); 385 if (!skb) 386 goto resubmit; 387 skb_reserve(skb, 2); 388 memcpy(skb_put(skb, 12), &data[datalen-14], 12); 389 memcpy(skb_put(skb, 2), &data[6], 2); 390 memcpy(skb_put(skb, len), data+8, len); 391 } 392 skb->protocol = eth_type_trans(skb, zd->dev); 393 zd->dev->stats.rx_packets++; 394 zd->dev->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 } 413 414 static int zd1201_getconfig(struct zd1201 *zd, int rid, void *riddata, 415 unsigned int riddatalen) 416 { 417 int err; 418 int i = 0; 419 int code; 420 int rid_fid; 421 int length; 422 unsigned char *pdata; 423 424 zd->rxdatas = 0; 425 err = zd1201_docmd(zd, ZD1201_CMDCODE_ACCESS, rid, 0, 0); 426 if (err) 427 return err; 428 429 wait_event_interruptible(zd->rxdataq, zd->rxdatas); 430 if (!zd->rxlen) 431 return -EIO; 432 433 code = le16_to_cpu(*(__le16*)(&zd->rxdata[4])); 434 rid_fid = le16_to_cpu(*(__le16*)(&zd->rxdata[6])); 435 length = le16_to_cpu(*(__le16*)(&zd->rxdata[8])); 436 if (length > zd->rxlen) 437 length = zd->rxlen-6; 438 439 /* If access bit is not on, then error */ 440 if ((code & ZD1201_ACCESSBIT) != ZD1201_ACCESSBIT || rid_fid != rid ) 441 return -EINVAL; 442 443 /* Not enough buffer for allocating data */ 444 if (riddatalen != (length - 4)) { 445 dev_dbg(&zd->usb->dev, "riddatalen mismatches, expected=%u, (packet=%u) length=%u, rid=0x%04X, rid_fid=0x%04X\n", 446 riddatalen, zd->rxlen, length, rid, rid_fid); 447 return -ENODATA; 448 } 449 450 zd->rxdatas = 0; 451 /* Issue SetRxRid commnd */ 452 err = zd1201_docmd(zd, ZD1201_CMDCODE_SETRXRID, rid, 0, length); 453 if (err) 454 return err; 455 456 /* Receive RID record from resource packets */ 457 wait_event_interruptible(zd->rxdataq, zd->rxdatas); 458 if (!zd->rxlen) 459 return -EIO; 460 461 if (zd->rxdata[zd->rxlen - 1] != ZD1201_PACKET_RESOURCE) { 462 dev_dbg(&zd->usb->dev, "Packet type mismatch: 0x%x not 0x3\n", 463 zd->rxdata[zd->rxlen-1]); 464 return -EINVAL; 465 } 466 467 /* Set the data pointer and received data length */ 468 pdata = zd->rxdata; 469 length = zd->rxlen; 470 471 do { 472 int actual_length; 473 474 actual_length = (length > 64) ? 64 : length; 475 476 if (pdata[0] != 0x3) { 477 dev_dbg(&zd->usb->dev, "Rx Resource packet type error: %02X\n", 478 pdata[0]); 479 return -EINVAL; 480 } 481 482 if (actual_length != 64) { 483 /* Trim the last packet type byte */ 484 actual_length--; 485 } 486 487 /* Skip the 4 bytes header (RID length and RID) */ 488 if (i == 0) { 489 pdata += 8; 490 actual_length -= 8; 491 } else { 492 pdata += 4; 493 actual_length -= 4; 494 } 495 496 memcpy(riddata, pdata, actual_length); 497 riddata += actual_length; 498 pdata += actual_length; 499 length -= 64; 500 i++; 501 } while (length > 0); 502 503 return 0; 504 } 505 506 /* 507 * resreq: 508 * byte type 509 * byte sequence 510 * u16 reserved 511 * byte data[12] 512 * total: 16 513 */ 514 static int zd1201_setconfig(struct zd1201 *zd, int rid, void *buf, int len, int wait) 515 { 516 int err; 517 unsigned char *request; 518 int reqlen; 519 char seq=0; 520 struct urb *urb; 521 gfp_t gfp_mask = wait ? GFP_NOIO : GFP_ATOMIC; 522 523 len += 4; /* first 4 are for header */ 524 525 zd->rxdatas = 0; 526 zd->rxlen = 0; 527 for (seq=0; len > 0; seq++) { 528 request = kmalloc(16, gfp_mask); 529 if (!request) 530 return -ENOMEM; 531 urb = usb_alloc_urb(0, gfp_mask); 532 if (!urb) { 533 kfree(request); 534 return -ENOMEM; 535 } 536 memset(request, 0, 16); 537 reqlen = len>12 ? 12 : len; 538 request[0] = ZD1201_USB_RESREQ; 539 request[1] = seq; 540 request[2] = 0; 541 request[3] = 0; 542 if (request[1] == 0) { 543 /* add header */ 544 *(__le16*)&request[4] = cpu_to_le16((len-2+1)/2); 545 *(__le16*)&request[6] = cpu_to_le16(rid); 546 memcpy(request+8, buf, reqlen-4); 547 buf += reqlen-4; 548 } else { 549 memcpy(request+4, buf, reqlen); 550 buf += reqlen; 551 } 552 553 len -= reqlen; 554 555 usb_fill_bulk_urb(urb, zd->usb, usb_sndbulkpipe(zd->usb, 556 zd->endp_out2), request, 16, zd1201_usbfree, zd); 557 err = usb_submit_urb(urb, gfp_mask); 558 if (err) 559 goto err; 560 } 561 562 request = kmalloc(16, gfp_mask); 563 if (!request) 564 return -ENOMEM; 565 urb = usb_alloc_urb(0, gfp_mask); 566 if (!urb) { 567 kfree(request); 568 return -ENOMEM; 569 } 570 *((__le32*)request) = cpu_to_le32(ZD1201_USB_CMDREQ); 571 *((__le16*)&request[4]) = 572 cpu_to_le16(ZD1201_CMDCODE_ACCESS|ZD1201_ACCESSBIT); 573 *((__le16*)&request[6]) = cpu_to_le16(rid); 574 *((__le16*)&request[8]) = cpu_to_le16(0); 575 *((__le16*)&request[10]) = cpu_to_le16(0); 576 usb_fill_bulk_urb(urb, zd->usb, usb_sndbulkpipe(zd->usb, zd->endp_out2), 577 request, 16, zd1201_usbfree, zd); 578 err = usb_submit_urb(urb, gfp_mask); 579 if (err) 580 goto err; 581 582 if (wait) { 583 wait_event_interruptible(zd->rxdataq, zd->rxdatas); 584 if (!zd->rxlen || le16_to_cpu(*(__le16*)&zd->rxdata[6]) != rid) { 585 dev_dbg(&zd->usb->dev, "wrong or no RID received\n"); 586 } 587 } 588 589 return 0; 590 err: 591 kfree(request); 592 usb_free_urb(urb); 593 return err; 594 } 595 596 static inline int zd1201_getconfig16(struct zd1201 *zd, int rid, short *val) 597 { 598 int err; 599 __le16 zdval; 600 601 err = zd1201_getconfig(zd, rid, &zdval, sizeof(__le16)); 602 if (err) 603 return err; 604 *val = le16_to_cpu(zdval); 605 return 0; 606 } 607 608 static inline int zd1201_setconfig16(struct zd1201 *zd, int rid, short val) 609 { 610 __le16 zdval = cpu_to_le16(val); 611 return (zd1201_setconfig(zd, rid, &zdval, sizeof(__le16), 1)); 612 } 613 614 static int zd1201_drvr_start(struct zd1201 *zd) 615 { 616 int err, i; 617 short max; 618 __le16 zdmax; 619 unsigned char *buffer; 620 621 buffer = kzalloc(ZD1201_RXSIZE, GFP_KERNEL); 622 if (!buffer) 623 return -ENOMEM; 624 625 usb_fill_bulk_urb(zd->rx_urb, zd->usb, 626 usb_rcvbulkpipe(zd->usb, zd->endp_in), buffer, ZD1201_RXSIZE, 627 zd1201_usbrx, zd); 628 629 err = usb_submit_urb(zd->rx_urb, GFP_KERNEL); 630 if (err) 631 goto err_buffer; 632 633 err = zd1201_docmd(zd, ZD1201_CMDCODE_INIT, 0, 0, 0); 634 if (err) 635 goto err_urb; 636 637 err = zd1201_getconfig(zd, ZD1201_RID_CNFMAXTXBUFFERNUMBER, &zdmax, 638 sizeof(__le16)); 639 if (err) 640 goto err_urb; 641 642 max = le16_to_cpu(zdmax); 643 for (i=0; i<max; i++) { 644 err = zd1201_docmd(zd, ZD1201_CMDCODE_ALLOC, 1514, 0, 0); 645 if (err) 646 goto err_urb; 647 } 648 649 return 0; 650 651 err_urb: 652 usb_kill_urb(zd->rx_urb); 653 return err; 654 err_buffer: 655 kfree(buffer); 656 return err; 657 } 658 659 /* Magic alert: The firmware doesn't seem to like the MAC state being 660 * toggled in promisc (aka monitor) mode. 661 * (It works a number of times, but will halt eventually) 662 * So we turn it of before disabling and on after enabling if needed. 663 */ 664 static int zd1201_enable(struct zd1201 *zd) 665 { 666 int err; 667 668 if (zd->mac_enabled) 669 return 0; 670 671 err = zd1201_docmd(zd, ZD1201_CMDCODE_ENABLE, 0, 0, 0); 672 if (!err) 673 zd->mac_enabled = 1; 674 675 if (zd->monitor) 676 err = zd1201_setconfig16(zd, ZD1201_RID_PROMISCUOUSMODE, 1); 677 678 return err; 679 } 680 681 static int zd1201_disable(struct zd1201 *zd) 682 { 683 int err; 684 685 if (!zd->mac_enabled) 686 return 0; 687 if (zd->monitor) { 688 err = zd1201_setconfig16(zd, ZD1201_RID_PROMISCUOUSMODE, 0); 689 if (err) 690 return err; 691 } 692 693 err = zd1201_docmd(zd, ZD1201_CMDCODE_DISABLE, 0, 0, 0); 694 if (!err) 695 zd->mac_enabled = 0; 696 return err; 697 } 698 699 static int zd1201_mac_reset(struct zd1201 *zd) 700 { 701 if (!zd->mac_enabled) 702 return 0; 703 zd1201_disable(zd); 704 return zd1201_enable(zd); 705 } 706 707 static int zd1201_join(struct zd1201 *zd, char *essid, int essidlen) 708 { 709 int err, val; 710 char buf[IW_ESSID_MAX_SIZE+2]; 711 712 err = zd1201_disable(zd); 713 if (err) 714 return err; 715 716 val = ZD1201_CNFAUTHENTICATION_OPENSYSTEM; 717 val |= ZD1201_CNFAUTHENTICATION_SHAREDKEY; 718 err = zd1201_setconfig16(zd, ZD1201_RID_CNFAUTHENTICATION, val); 719 if (err) 720 return err; 721 722 *(__le16 *)buf = cpu_to_le16(essidlen); 723 memcpy(buf+2, essid, essidlen); 724 if (!zd->ap) { /* Normal station */ 725 err = zd1201_setconfig(zd, ZD1201_RID_CNFDESIREDSSID, buf, 726 IW_ESSID_MAX_SIZE+2, 1); 727 if (err) 728 return err; 729 } else { /* AP */ 730 err = zd1201_setconfig(zd, ZD1201_RID_CNFOWNSSID, buf, 731 IW_ESSID_MAX_SIZE+2, 1); 732 if (err) 733 return err; 734 } 735 736 err = zd1201_setconfig(zd, ZD1201_RID_CNFOWNMACADDR, 737 zd->dev->dev_addr, zd->dev->addr_len, 1); 738 if (err) 739 return err; 740 741 err = zd1201_enable(zd); 742 if (err) 743 return err; 744 745 msleep(100); 746 return 0; 747 } 748 749 static int zd1201_net_open(struct net_device *dev) 750 { 751 struct zd1201 *zd = netdev_priv(dev); 752 753 /* Start MAC with wildcard if no essid set */ 754 if (!zd->mac_enabled) 755 zd1201_join(zd, zd->essid, zd->essidlen); 756 netif_start_queue(dev); 757 758 return 0; 759 } 760 761 static int zd1201_net_stop(struct net_device *dev) 762 { 763 netif_stop_queue(dev); 764 return 0; 765 } 766 767 /* 768 RFC 1042 encapsulates Ethernet frames in 802.11 frames 769 by prefixing them with 0xaa, 0xaa, 0x03) followed by a SNAP OID of 0 770 (0x00, 0x00, 0x00). Zd requires an additional padding, copy 771 of ethernet addresses, length of the standard RFC 1042 packet 772 and a command byte (which is nul for tx). 773 774 tx frame (from Wlan NG): 775 RFC 1042: 776 llc 0xAA 0xAA 0x03 (802.2 LLC) 777 snap 0x00 0x00 0x00 (Ethernet encapsulated) 778 type 2 bytes, Ethernet type field 779 payload (minus eth header) 780 Zydas specific: 781 padding 1B if (skb->len+8+1)%64==0 782 Eth MAC addr 12 bytes, Ethernet MAC addresses 783 length 2 bytes, RFC 1042 packet length 784 (llc+snap+type+payload) 785 zd 1 null byte, zd1201 packet type 786 */ 787 static netdev_tx_t zd1201_hard_start_xmit(struct sk_buff *skb, 788 struct net_device *dev) 789 { 790 struct zd1201 *zd = netdev_priv(dev); 791 unsigned char *txbuf = zd->txdata; 792 int txbuflen, pad = 0, err; 793 struct urb *urb = zd->tx_urb; 794 795 if (!zd->mac_enabled || zd->monitor) { 796 dev->stats.tx_dropped++; 797 kfree_skb(skb); 798 return NETDEV_TX_OK; 799 } 800 netif_stop_queue(dev); 801 802 txbuflen = skb->len + 8 + 1; 803 if (txbuflen%64 == 0) { 804 pad = 1; 805 txbuflen++; 806 } 807 txbuf[0] = 0xAA; 808 txbuf[1] = 0xAA; 809 txbuf[2] = 0x03; 810 txbuf[3] = 0x00; /* rfc1042 */ 811 txbuf[4] = 0x00; 812 txbuf[5] = 0x00; 813 814 skb_copy_from_linear_data_offset(skb, 12, txbuf + 6, skb->len - 12); 815 if (pad) 816 txbuf[skb->len-12+6]=0; 817 skb_copy_from_linear_data(skb, txbuf + skb->len - 12 + 6 + pad, 12); 818 *(__be16*)&txbuf[skb->len+6+pad] = htons(skb->len-12+6); 819 txbuf[txbuflen-1] = 0; 820 821 usb_fill_bulk_urb(urb, zd->usb, usb_sndbulkpipe(zd->usb, zd->endp_out), 822 txbuf, txbuflen, zd1201_usbtx, zd); 823 824 err = usb_submit_urb(zd->tx_urb, GFP_ATOMIC); 825 if (err) { 826 dev->stats.tx_errors++; 827 netif_start_queue(dev); 828 } else { 829 dev->stats.tx_packets++; 830 dev->stats.tx_bytes += skb->len; 831 } 832 kfree_skb(skb); 833 834 return NETDEV_TX_OK; 835 } 836 837 static void zd1201_tx_timeout(struct net_device *dev) 838 { 839 struct zd1201 *zd = netdev_priv(dev); 840 841 if (!zd) 842 return; 843 dev_warn(&zd->usb->dev, "%s: TX timeout, shooting down urb\n", 844 dev->name); 845 usb_unlink_urb(zd->tx_urb); 846 dev->stats.tx_errors++; 847 /* Restart the timeout to quiet the watchdog: */ 848 netif_trans_update(dev); /* prevent tx timeout */ 849 } 850 851 static int zd1201_set_mac_address(struct net_device *dev, void *p) 852 { 853 struct sockaddr *addr = p; 854 struct zd1201 *zd = netdev_priv(dev); 855 int err; 856 857 if (!zd) 858 return -ENODEV; 859 860 err = zd1201_setconfig(zd, ZD1201_RID_CNFOWNMACADDR, 861 addr->sa_data, dev->addr_len, 1); 862 if (err) 863 return err; 864 memcpy(dev->dev_addr, addr->sa_data, dev->addr_len); 865 866 return zd1201_mac_reset(zd); 867 } 868 869 static struct iw_statistics *zd1201_get_wireless_stats(struct net_device *dev) 870 { 871 struct zd1201 *zd = netdev_priv(dev); 872 873 return &zd->iwstats; 874 } 875 876 static void zd1201_set_multicast(struct net_device *dev) 877 { 878 struct zd1201 *zd = netdev_priv(dev); 879 struct netdev_hw_addr *ha; 880 unsigned char reqbuf[ETH_ALEN*ZD1201_MAXMULTI]; 881 int i; 882 883 if (netdev_mc_count(dev) > ZD1201_MAXMULTI) 884 return; 885 886 i = 0; 887 netdev_for_each_mc_addr(ha, dev) 888 memcpy(reqbuf + i++ * ETH_ALEN, ha->addr, ETH_ALEN); 889 zd1201_setconfig(zd, ZD1201_RID_CNFGROUPADDRESS, reqbuf, 890 netdev_mc_count(dev) * ETH_ALEN, 0); 891 } 892 893 static int zd1201_config_commit(struct net_device *dev, 894 struct iw_request_info *info, struct iw_point *data, char *essid) 895 { 896 struct zd1201 *zd = netdev_priv(dev); 897 898 return zd1201_mac_reset(zd); 899 } 900 901 static int zd1201_get_name(struct net_device *dev, 902 struct iw_request_info *info, char *name, char *extra) 903 { 904 strcpy(name, "IEEE 802.11b"); 905 return 0; 906 } 907 908 static int zd1201_set_freq(struct net_device *dev, 909 struct iw_request_info *info, struct iw_freq *freq, char *extra) 910 { 911 struct zd1201 *zd = netdev_priv(dev); 912 short channel = 0; 913 int err; 914 915 if (freq->e == 0) 916 channel = freq->m; 917 else 918 channel = ieee80211_frequency_to_channel(freq->m); 919 920 err = zd1201_setconfig16(zd, ZD1201_RID_CNFOWNCHANNEL, channel); 921 if (err) 922 return err; 923 924 zd1201_mac_reset(zd); 925 926 return 0; 927 } 928 929 static int zd1201_get_freq(struct net_device *dev, 930 struct iw_request_info *info, struct iw_freq *freq, char *extra) 931 { 932 struct zd1201 *zd = netdev_priv(dev); 933 short channel; 934 int err; 935 936 err = zd1201_getconfig16(zd, ZD1201_RID_CNFOWNCHANNEL, &channel); 937 if (err) 938 return err; 939 freq->e = 0; 940 freq->m = channel; 941 942 return 0; 943 } 944 945 static int zd1201_set_mode(struct net_device *dev, 946 struct iw_request_info *info, __u32 *mode, char *extra) 947 { 948 struct zd1201 *zd = netdev_priv(dev); 949 short porttype, monitor = 0; 950 unsigned char buffer[IW_ESSID_MAX_SIZE+2]; 951 int err; 952 953 if (zd->ap) { 954 if (*mode != IW_MODE_MASTER) 955 return -EINVAL; 956 return 0; 957 } 958 959 err = zd1201_setconfig16(zd, ZD1201_RID_PROMISCUOUSMODE, 0); 960 if (err) 961 return err; 962 zd->dev->type = ARPHRD_ETHER; 963 switch(*mode) { 964 case IW_MODE_MONITOR: 965 monitor = 1; 966 zd->dev->type = ARPHRD_IEEE80211; 967 /* Make sure we are no longer associated with by 968 setting an 'impossible' essid. 969 (otherwise we mess up firmware) 970 */ 971 zd1201_join(zd, "\0-*#\0", 5); 972 /* Put port in pIBSS */ 973 case 8: /* No pseudo-IBSS in wireless extensions (yet) */ 974 porttype = ZD1201_PORTTYPE_PSEUDOIBSS; 975 break; 976 case IW_MODE_ADHOC: 977 porttype = ZD1201_PORTTYPE_IBSS; 978 break; 979 case IW_MODE_INFRA: 980 porttype = ZD1201_PORTTYPE_BSS; 981 break; 982 default: 983 return -EINVAL; 984 } 985 986 err = zd1201_setconfig16(zd, ZD1201_RID_CNFPORTTYPE, porttype); 987 if (err) 988 return err; 989 if (zd->monitor && !monitor) { 990 zd1201_disable(zd); 991 *(__le16 *)buffer = cpu_to_le16(zd->essidlen); 992 memcpy(buffer+2, zd->essid, zd->essidlen); 993 err = zd1201_setconfig(zd, ZD1201_RID_CNFDESIREDSSID, 994 buffer, IW_ESSID_MAX_SIZE+2, 1); 995 if (err) 996 return err; 997 } 998 zd->monitor = monitor; 999 /* If monitor mode is set we don't actually turn it on here since it 1000 * is done during mac reset anyway (see zd1201_mac_enable). 1001 */ 1002 zd1201_mac_reset(zd); 1003 1004 return 0; 1005 } 1006 1007 static int zd1201_get_mode(struct net_device *dev, 1008 struct iw_request_info *info, __u32 *mode, char *extra) 1009 { 1010 struct zd1201 *zd = netdev_priv(dev); 1011 short porttype; 1012 int err; 1013 1014 err = zd1201_getconfig16(zd, ZD1201_RID_CNFPORTTYPE, &porttype); 1015 if (err) 1016 return err; 1017 switch(porttype) { 1018 case ZD1201_PORTTYPE_IBSS: 1019 *mode = IW_MODE_ADHOC; 1020 break; 1021 case ZD1201_PORTTYPE_BSS: 1022 *mode = IW_MODE_INFRA; 1023 break; 1024 case ZD1201_PORTTYPE_WDS: 1025 *mode = IW_MODE_REPEAT; 1026 break; 1027 case ZD1201_PORTTYPE_PSEUDOIBSS: 1028 *mode = 8;/* No Pseudo-IBSS... */ 1029 break; 1030 case ZD1201_PORTTYPE_AP: 1031 *mode = IW_MODE_MASTER; 1032 break; 1033 default: 1034 dev_dbg(&zd->usb->dev, "Unknown porttype: %d\n", 1035 porttype); 1036 *mode = IW_MODE_AUTO; 1037 } 1038 if (zd->monitor) 1039 *mode = IW_MODE_MONITOR; 1040 1041 return 0; 1042 } 1043 1044 static int zd1201_get_range(struct net_device *dev, 1045 struct iw_request_info *info, struct iw_point *wrq, char *extra) 1046 { 1047 struct iw_range *range = (struct iw_range *)extra; 1048 1049 wrq->length = sizeof(struct iw_range); 1050 memset(range, 0, sizeof(struct iw_range)); 1051 range->we_version_compiled = WIRELESS_EXT; 1052 range->we_version_source = WIRELESS_EXT; 1053 1054 range->max_qual.qual = 128; 1055 range->max_qual.level = 128; 1056 range->max_qual.noise = 128; 1057 range->max_qual.updated = 7; 1058 1059 range->encoding_size[0] = 5; 1060 range->encoding_size[1] = 13; 1061 range->num_encoding_sizes = 2; 1062 range->max_encoding_tokens = ZD1201_NUMKEYS; 1063 1064 range->num_bitrates = 4; 1065 range->bitrate[0] = 1000000; 1066 range->bitrate[1] = 2000000; 1067 range->bitrate[2] = 5500000; 1068 range->bitrate[3] = 11000000; 1069 1070 range->min_rts = 0; 1071 range->min_frag = ZD1201_FRAGMIN; 1072 range->max_rts = ZD1201_RTSMAX; 1073 range->min_frag = ZD1201_FRAGMAX; 1074 1075 return 0; 1076 } 1077 1078 /* Little bit of magic here: we only get the quality if we poll 1079 * for it, and we never get an actual request to trigger such 1080 * a poll. Therefore we 'assume' that the user will soon ask for 1081 * the stats after asking the bssid. 1082 */ 1083 static int zd1201_get_wap(struct net_device *dev, 1084 struct iw_request_info *info, struct sockaddr *ap_addr, char *extra) 1085 { 1086 struct zd1201 *zd = netdev_priv(dev); 1087 unsigned char buffer[6]; 1088 1089 if (!zd1201_getconfig(zd, ZD1201_RID_COMMSQUALITY, buffer, 6)) { 1090 /* Unfortunately the quality and noise reported is useless. 1091 they seem to be accumulators that increase until you 1092 read them, unless we poll on a fixed interval we can't 1093 use them 1094 */ 1095 /*zd->iwstats.qual.qual = le16_to_cpu(((__le16 *)buffer)[0]);*/ 1096 zd->iwstats.qual.level = le16_to_cpu(((__le16 *)buffer)[1]); 1097 /*zd->iwstats.qual.noise = le16_to_cpu(((__le16 *)buffer)[2]);*/ 1098 zd->iwstats.qual.updated = 2; 1099 } 1100 1101 return zd1201_getconfig(zd, ZD1201_RID_CURRENTBSSID, ap_addr->sa_data, 6); 1102 } 1103 1104 static int zd1201_set_scan(struct net_device *dev, 1105 struct iw_request_info *info, struct iw_point *srq, char *extra) 1106 { 1107 /* We do everything in get_scan */ 1108 return 0; 1109 } 1110 1111 static int zd1201_get_scan(struct net_device *dev, 1112 struct iw_request_info *info, struct iw_point *srq, char *extra) 1113 { 1114 struct zd1201 *zd = netdev_priv(dev); 1115 int err, i, j, enabled_save; 1116 struct iw_event iwe; 1117 char *cev = extra; 1118 char *end_buf = extra + IW_SCAN_MAX_DATA; 1119 1120 /* No scanning in AP mode */ 1121 if (zd->ap) 1122 return -EOPNOTSUPP; 1123 1124 /* Scan doesn't seem to work if disabled */ 1125 enabled_save = zd->mac_enabled; 1126 zd1201_enable(zd); 1127 1128 zd->rxdatas = 0; 1129 err = zd1201_docmd(zd, ZD1201_CMDCODE_INQUIRE, 1130 ZD1201_INQ_SCANRESULTS, 0, 0); 1131 if (err) 1132 return err; 1133 1134 wait_event_interruptible(zd->rxdataq, zd->rxdatas); 1135 if (!zd->rxlen) 1136 return -EIO; 1137 1138 if (le16_to_cpu(*(__le16*)&zd->rxdata[2]) != ZD1201_INQ_SCANRESULTS) 1139 return -EIO; 1140 1141 for(i=8; i<zd->rxlen; i+=62) { 1142 iwe.cmd = SIOCGIWAP; 1143 iwe.u.ap_addr.sa_family = ARPHRD_ETHER; 1144 memcpy(iwe.u.ap_addr.sa_data, zd->rxdata+i+6, 6); 1145 cev = iwe_stream_add_event(info, cev, end_buf, 1146 &iwe, IW_EV_ADDR_LEN); 1147 1148 iwe.cmd = SIOCGIWESSID; 1149 iwe.u.data.length = zd->rxdata[i+16]; 1150 iwe.u.data.flags = 1; 1151 cev = iwe_stream_add_point(info, cev, end_buf, 1152 &iwe, zd->rxdata+i+18); 1153 1154 iwe.cmd = SIOCGIWMODE; 1155 if (zd->rxdata[i+14]&0x01) 1156 iwe.u.mode = IW_MODE_MASTER; 1157 else 1158 iwe.u.mode = IW_MODE_ADHOC; 1159 cev = iwe_stream_add_event(info, cev, end_buf, 1160 &iwe, IW_EV_UINT_LEN); 1161 1162 iwe.cmd = SIOCGIWFREQ; 1163 iwe.u.freq.m = zd->rxdata[i+0]; 1164 iwe.u.freq.e = 0; 1165 cev = iwe_stream_add_event(info, cev, end_buf, 1166 &iwe, IW_EV_FREQ_LEN); 1167 1168 iwe.cmd = SIOCGIWRATE; 1169 iwe.u.bitrate.fixed = 0; 1170 iwe.u.bitrate.disabled = 0; 1171 for (j=0; j<10; j++) if (zd->rxdata[i+50+j]) { 1172 iwe.u.bitrate.value = (zd->rxdata[i+50+j]&0x7f)*500000; 1173 cev = iwe_stream_add_event(info, cev, end_buf, 1174 &iwe, IW_EV_PARAM_LEN); 1175 } 1176 1177 iwe.cmd = SIOCGIWENCODE; 1178 iwe.u.data.length = 0; 1179 if (zd->rxdata[i+14]&0x10) 1180 iwe.u.data.flags = IW_ENCODE_ENABLED; 1181 else 1182 iwe.u.data.flags = IW_ENCODE_DISABLED; 1183 cev = iwe_stream_add_point(info, cev, end_buf, &iwe, NULL); 1184 1185 iwe.cmd = IWEVQUAL; 1186 iwe.u.qual.qual = zd->rxdata[i+4]; 1187 iwe.u.qual.noise= zd->rxdata[i+2]/10-100; 1188 iwe.u.qual.level = (256+zd->rxdata[i+4]*100)/255-100; 1189 iwe.u.qual.updated = 7; 1190 cev = iwe_stream_add_event(info, cev, end_buf, 1191 &iwe, IW_EV_QUAL_LEN); 1192 } 1193 1194 if (!enabled_save) 1195 zd1201_disable(zd); 1196 1197 srq->length = cev - extra; 1198 srq->flags = 0; 1199 1200 return 0; 1201 } 1202 1203 static int zd1201_set_essid(struct net_device *dev, 1204 struct iw_request_info *info, struct iw_point *data, char *essid) 1205 { 1206 struct zd1201 *zd = netdev_priv(dev); 1207 1208 if (data->length > IW_ESSID_MAX_SIZE) 1209 return -EINVAL; 1210 if (data->length < 1) 1211 data->length = 1; 1212 zd->essidlen = data->length; 1213 memset(zd->essid, 0, IW_ESSID_MAX_SIZE+1); 1214 memcpy(zd->essid, essid, data->length); 1215 return zd1201_join(zd, zd->essid, zd->essidlen); 1216 } 1217 1218 static int zd1201_get_essid(struct net_device *dev, 1219 struct iw_request_info *info, struct iw_point *data, char *essid) 1220 { 1221 struct zd1201 *zd = netdev_priv(dev); 1222 1223 memcpy(essid, zd->essid, zd->essidlen); 1224 data->flags = 1; 1225 data->length = zd->essidlen; 1226 1227 return 0; 1228 } 1229 1230 static int zd1201_get_nick(struct net_device *dev, struct iw_request_info *info, 1231 struct iw_point *data, char *nick) 1232 { 1233 strcpy(nick, "zd1201"); 1234 data->flags = 1; 1235 data->length = strlen(nick); 1236 return 0; 1237 } 1238 1239 static int zd1201_set_rate(struct net_device *dev, 1240 struct iw_request_info *info, struct iw_param *rrq, char *extra) 1241 { 1242 struct zd1201 *zd = netdev_priv(dev); 1243 short rate; 1244 int err; 1245 1246 switch (rrq->value) { 1247 case 1000000: 1248 rate = ZD1201_RATEB1; 1249 break; 1250 case 2000000: 1251 rate = ZD1201_RATEB2; 1252 break; 1253 case 5500000: 1254 rate = ZD1201_RATEB5; 1255 break; 1256 case 11000000: 1257 default: 1258 rate = ZD1201_RATEB11; 1259 break; 1260 } 1261 if (!rrq->fixed) { /* Also enable all lower bitrates */ 1262 rate |= rate-1; 1263 } 1264 1265 err = zd1201_setconfig16(zd, ZD1201_RID_TXRATECNTL, rate); 1266 if (err) 1267 return err; 1268 1269 return zd1201_mac_reset(zd); 1270 } 1271 1272 static int zd1201_get_rate(struct net_device *dev, 1273 struct iw_request_info *info, struct iw_param *rrq, char *extra) 1274 { 1275 struct zd1201 *zd = netdev_priv(dev); 1276 short rate; 1277 int err; 1278 1279 err = zd1201_getconfig16(zd, ZD1201_RID_CURRENTTXRATE, &rate); 1280 if (err) 1281 return err; 1282 1283 switch(rate) { 1284 case 1: 1285 rrq->value = 1000000; 1286 break; 1287 case 2: 1288 rrq->value = 2000000; 1289 break; 1290 case 5: 1291 rrq->value = 5500000; 1292 break; 1293 case 11: 1294 rrq->value = 11000000; 1295 break; 1296 default: 1297 rrq->value = 0; 1298 } 1299 rrq->fixed = 0; 1300 rrq->disabled = 0; 1301 1302 return 0; 1303 } 1304 1305 static int zd1201_set_rts(struct net_device *dev, struct iw_request_info *info, 1306 struct iw_param *rts, char *extra) 1307 { 1308 struct zd1201 *zd = netdev_priv(dev); 1309 int err; 1310 short val = rts->value; 1311 1312 if (rts->disabled || !rts->fixed) 1313 val = ZD1201_RTSMAX; 1314 if (val > ZD1201_RTSMAX) 1315 return -EINVAL; 1316 if (val < 0) 1317 return -EINVAL; 1318 1319 err = zd1201_setconfig16(zd, ZD1201_RID_CNFRTSTHRESHOLD, val); 1320 if (err) 1321 return err; 1322 return zd1201_mac_reset(zd); 1323 } 1324 1325 static int zd1201_get_rts(struct net_device *dev, struct iw_request_info *info, 1326 struct iw_param *rts, char *extra) 1327 { 1328 struct zd1201 *zd = netdev_priv(dev); 1329 short rtst; 1330 int err; 1331 1332 err = zd1201_getconfig16(zd, ZD1201_RID_CNFRTSTHRESHOLD, &rtst); 1333 if (err) 1334 return err; 1335 rts->value = rtst; 1336 rts->disabled = (rts->value == ZD1201_RTSMAX); 1337 rts->fixed = 1; 1338 1339 return 0; 1340 } 1341 1342 static int zd1201_set_frag(struct net_device *dev, struct iw_request_info *info, 1343 struct iw_param *frag, char *extra) 1344 { 1345 struct zd1201 *zd = netdev_priv(dev); 1346 int err; 1347 short val = frag->value; 1348 1349 if (frag->disabled || !frag->fixed) 1350 val = ZD1201_FRAGMAX; 1351 if (val > ZD1201_FRAGMAX) 1352 return -EINVAL; 1353 if (val < ZD1201_FRAGMIN) 1354 return -EINVAL; 1355 if (val & 1) 1356 return -EINVAL; 1357 err = zd1201_setconfig16(zd, ZD1201_RID_CNFFRAGTHRESHOLD, val); 1358 if (err) 1359 return err; 1360 return zd1201_mac_reset(zd); 1361 } 1362 1363 static int zd1201_get_frag(struct net_device *dev, struct iw_request_info *info, 1364 struct iw_param *frag, char *extra) 1365 { 1366 struct zd1201 *zd = netdev_priv(dev); 1367 short fragt; 1368 int err; 1369 1370 err = zd1201_getconfig16(zd, ZD1201_RID_CNFFRAGTHRESHOLD, &fragt); 1371 if (err) 1372 return err; 1373 frag->value = fragt; 1374 frag->disabled = (frag->value == ZD1201_FRAGMAX); 1375 frag->fixed = 1; 1376 1377 return 0; 1378 } 1379 1380 static int zd1201_set_retry(struct net_device *dev, 1381 struct iw_request_info *info, struct iw_param *rrq, char *extra) 1382 { 1383 return 0; 1384 } 1385 1386 static int zd1201_get_retry(struct net_device *dev, 1387 struct iw_request_info *info, struct iw_param *rrq, char *extra) 1388 { 1389 return 0; 1390 } 1391 1392 static int zd1201_set_encode(struct net_device *dev, 1393 struct iw_request_info *info, struct iw_point *erq, char *key) 1394 { 1395 struct zd1201 *zd = netdev_priv(dev); 1396 short i; 1397 int err, rid; 1398 1399 if (erq->length > ZD1201_MAXKEYLEN) 1400 return -EINVAL; 1401 1402 i = (erq->flags & IW_ENCODE_INDEX)-1; 1403 if (i == -1) { 1404 err = zd1201_getconfig16(zd,ZD1201_RID_CNFDEFAULTKEYID,&i); 1405 if (err) 1406 return err; 1407 } else { 1408 err = zd1201_setconfig16(zd, ZD1201_RID_CNFDEFAULTKEYID, i); 1409 if (err) 1410 return err; 1411 } 1412 1413 if (i < 0 || i >= ZD1201_NUMKEYS) 1414 return -EINVAL; 1415 1416 rid = ZD1201_RID_CNFDEFAULTKEY0 + i; 1417 err = zd1201_setconfig(zd, rid, key, erq->length, 1); 1418 if (err) 1419 return err; 1420 zd->encode_keylen[i] = erq->length; 1421 memcpy(zd->encode_keys[i], key, erq->length); 1422 1423 i=0; 1424 if (!(erq->flags & IW_ENCODE_DISABLED & IW_ENCODE_MODE)) { 1425 i |= 0x01; 1426 zd->encode_enabled = 1; 1427 } else 1428 zd->encode_enabled = 0; 1429 if (erq->flags & IW_ENCODE_RESTRICTED & IW_ENCODE_MODE) { 1430 i |= 0x02; 1431 zd->encode_restricted = 1; 1432 } else 1433 zd->encode_restricted = 0; 1434 err = zd1201_setconfig16(zd, ZD1201_RID_CNFWEBFLAGS, i); 1435 if (err) 1436 return err; 1437 1438 if (zd->encode_enabled) 1439 i = ZD1201_CNFAUTHENTICATION_SHAREDKEY; 1440 else 1441 i = ZD1201_CNFAUTHENTICATION_OPENSYSTEM; 1442 err = zd1201_setconfig16(zd, ZD1201_RID_CNFAUTHENTICATION, i); 1443 if (err) 1444 return err; 1445 1446 return zd1201_mac_reset(zd); 1447 } 1448 1449 static int zd1201_get_encode(struct net_device *dev, 1450 struct iw_request_info *info, struct iw_point *erq, char *key) 1451 { 1452 struct zd1201 *zd = netdev_priv(dev); 1453 short i; 1454 int err; 1455 1456 if (zd->encode_enabled) 1457 erq->flags = IW_ENCODE_ENABLED; 1458 else 1459 erq->flags = IW_ENCODE_DISABLED; 1460 if (zd->encode_restricted) 1461 erq->flags |= IW_ENCODE_RESTRICTED; 1462 else 1463 erq->flags |= IW_ENCODE_OPEN; 1464 1465 i = (erq->flags & IW_ENCODE_INDEX) -1; 1466 if (i == -1) { 1467 err = zd1201_getconfig16(zd, ZD1201_RID_CNFDEFAULTKEYID, &i); 1468 if (err) 1469 return err; 1470 } 1471 if (i<0 || i>= ZD1201_NUMKEYS) 1472 return -EINVAL; 1473 1474 erq->flags |= i+1; 1475 1476 erq->length = zd->encode_keylen[i]; 1477 memcpy(key, zd->encode_keys[i], erq->length); 1478 1479 return 0; 1480 } 1481 1482 static int zd1201_set_power(struct net_device *dev, 1483 struct iw_request_info *info, struct iw_param *vwrq, char *extra) 1484 { 1485 struct zd1201 *zd = netdev_priv(dev); 1486 short enabled, duration, level; 1487 int err; 1488 1489 enabled = vwrq->disabled ? 0 : 1; 1490 if (enabled) { 1491 if (vwrq->flags & IW_POWER_PERIOD) { 1492 duration = vwrq->value; 1493 err = zd1201_setconfig16(zd, 1494 ZD1201_RID_CNFMAXSLEEPDURATION, duration); 1495 if (err) 1496 return err; 1497 goto out; 1498 } 1499 if (vwrq->flags & IW_POWER_TIMEOUT) { 1500 err = zd1201_getconfig16(zd, 1501 ZD1201_RID_CNFMAXSLEEPDURATION, &duration); 1502 if (err) 1503 return err; 1504 level = vwrq->value * 4 / duration; 1505 if (level > 4) 1506 level = 4; 1507 if (level < 0) 1508 level = 0; 1509 err = zd1201_setconfig16(zd, ZD1201_RID_CNFPMEPS, 1510 level); 1511 if (err) 1512 return err; 1513 goto out; 1514 } 1515 return -EINVAL; 1516 } 1517 out: 1518 return zd1201_setconfig16(zd, ZD1201_RID_CNFPMENABLED, enabled); 1519 } 1520 1521 static int zd1201_get_power(struct net_device *dev, 1522 struct iw_request_info *info, struct iw_param *vwrq, char *extra) 1523 { 1524 struct zd1201 *zd = netdev_priv(dev); 1525 short enabled, level, duration; 1526 int err; 1527 1528 err = zd1201_getconfig16(zd, ZD1201_RID_CNFPMENABLED, &enabled); 1529 if (err) 1530 return err; 1531 err = zd1201_getconfig16(zd, ZD1201_RID_CNFPMEPS, &level); 1532 if (err) 1533 return err; 1534 err = zd1201_getconfig16(zd, ZD1201_RID_CNFMAXSLEEPDURATION, &duration); 1535 if (err) 1536 return err; 1537 vwrq->disabled = enabled ? 0 : 1; 1538 if (vwrq->flags & IW_POWER_TYPE) { 1539 if (vwrq->flags & IW_POWER_PERIOD) { 1540 vwrq->value = duration; 1541 vwrq->flags = IW_POWER_PERIOD; 1542 } else { 1543 vwrq->value = duration * level / 4; 1544 vwrq->flags = IW_POWER_TIMEOUT; 1545 } 1546 } 1547 if (vwrq->flags & IW_POWER_MODE) { 1548 if (enabled && level) 1549 vwrq->flags = IW_POWER_UNICAST_R; 1550 else 1551 vwrq->flags = IW_POWER_ALL_R; 1552 } 1553 1554 return 0; 1555 } 1556 1557 1558 static const iw_handler zd1201_iw_handler[] = 1559 { 1560 (iw_handler) zd1201_config_commit, /* SIOCSIWCOMMIT */ 1561 (iw_handler) zd1201_get_name, /* SIOCGIWNAME */ 1562 (iw_handler) NULL, /* SIOCSIWNWID */ 1563 (iw_handler) NULL, /* SIOCGIWNWID */ 1564 (iw_handler) zd1201_set_freq, /* SIOCSIWFREQ */ 1565 (iw_handler) zd1201_get_freq, /* SIOCGIWFREQ */ 1566 (iw_handler) zd1201_set_mode, /* SIOCSIWMODE */ 1567 (iw_handler) zd1201_get_mode, /* SIOCGIWMODE */ 1568 (iw_handler) NULL, /* SIOCSIWSENS */ 1569 (iw_handler) NULL, /* SIOCGIWSENS */ 1570 (iw_handler) NULL, /* SIOCSIWRANGE */ 1571 (iw_handler) zd1201_get_range, /* SIOCGIWRANGE */ 1572 (iw_handler) NULL, /* SIOCSIWPRIV */ 1573 (iw_handler) NULL, /* SIOCGIWPRIV */ 1574 (iw_handler) NULL, /* SIOCSIWSTATS */ 1575 (iw_handler) NULL, /* SIOCGIWSTATS */ 1576 (iw_handler) NULL, /* SIOCSIWSPY */ 1577 (iw_handler) NULL, /* SIOCGIWSPY */ 1578 (iw_handler) NULL, /* -- hole -- */ 1579 (iw_handler) NULL, /* -- hole -- */ 1580 (iw_handler) NULL/*zd1201_set_wap*/, /* SIOCSIWAP */ 1581 (iw_handler) zd1201_get_wap, /* SIOCGIWAP */ 1582 (iw_handler) NULL, /* -- hole -- */ 1583 (iw_handler) NULL, /* SIOCGIWAPLIST */ 1584 (iw_handler) zd1201_set_scan, /* SIOCSIWSCAN */ 1585 (iw_handler) zd1201_get_scan, /* SIOCGIWSCAN */ 1586 (iw_handler) zd1201_set_essid, /* SIOCSIWESSID */ 1587 (iw_handler) zd1201_get_essid, /* SIOCGIWESSID */ 1588 (iw_handler) NULL, /* SIOCSIWNICKN */ 1589 (iw_handler) zd1201_get_nick, /* SIOCGIWNICKN */ 1590 (iw_handler) NULL, /* -- hole -- */ 1591 (iw_handler) NULL, /* -- hole -- */ 1592 (iw_handler) zd1201_set_rate, /* SIOCSIWRATE */ 1593 (iw_handler) zd1201_get_rate, /* SIOCGIWRATE */ 1594 (iw_handler) zd1201_set_rts, /* SIOCSIWRTS */ 1595 (iw_handler) zd1201_get_rts, /* SIOCGIWRTS */ 1596 (iw_handler) zd1201_set_frag, /* SIOCSIWFRAG */ 1597 (iw_handler) zd1201_get_frag, /* SIOCGIWFRAG */ 1598 (iw_handler) NULL, /* SIOCSIWTXPOW */ 1599 (iw_handler) NULL, /* SIOCGIWTXPOW */ 1600 (iw_handler) zd1201_set_retry, /* SIOCSIWRETRY */ 1601 (iw_handler) zd1201_get_retry, /* SIOCGIWRETRY */ 1602 (iw_handler) zd1201_set_encode, /* SIOCSIWENCODE */ 1603 (iw_handler) zd1201_get_encode, /* SIOCGIWENCODE */ 1604 (iw_handler) zd1201_set_power, /* SIOCSIWPOWER */ 1605 (iw_handler) zd1201_get_power, /* SIOCGIWPOWER */ 1606 }; 1607 1608 static int zd1201_set_hostauth(struct net_device *dev, 1609 struct iw_request_info *info, struct iw_param *rrq, char *extra) 1610 { 1611 struct zd1201 *zd = netdev_priv(dev); 1612 1613 if (!zd->ap) 1614 return -EOPNOTSUPP; 1615 1616 return zd1201_setconfig16(zd, ZD1201_RID_CNFHOSTAUTH, rrq->value); 1617 } 1618 1619 static int zd1201_get_hostauth(struct net_device *dev, 1620 struct iw_request_info *info, struct iw_param *rrq, char *extra) 1621 { 1622 struct zd1201 *zd = netdev_priv(dev); 1623 short hostauth; 1624 int err; 1625 1626 if (!zd->ap) 1627 return -EOPNOTSUPP; 1628 1629 err = zd1201_getconfig16(zd, ZD1201_RID_CNFHOSTAUTH, &hostauth); 1630 if (err) 1631 return err; 1632 rrq->value = hostauth; 1633 rrq->fixed = 1; 1634 1635 return 0; 1636 } 1637 1638 static int zd1201_auth_sta(struct net_device *dev, 1639 struct iw_request_info *info, struct sockaddr *sta, char *extra) 1640 { 1641 struct zd1201 *zd = netdev_priv(dev); 1642 unsigned char buffer[10]; 1643 1644 if (!zd->ap) 1645 return -EOPNOTSUPP; 1646 1647 memcpy(buffer, sta->sa_data, ETH_ALEN); 1648 *(short*)(buffer+6) = 0; /* 0==success, 1==failure */ 1649 *(short*)(buffer+8) = 0; 1650 1651 return zd1201_setconfig(zd, ZD1201_RID_AUTHENTICATESTA, buffer, 10, 1); 1652 } 1653 1654 static int zd1201_set_maxassoc(struct net_device *dev, 1655 struct iw_request_info *info, struct iw_param *rrq, char *extra) 1656 { 1657 struct zd1201 *zd = netdev_priv(dev); 1658 int err; 1659 1660 if (!zd->ap) 1661 return -EOPNOTSUPP; 1662 1663 err = zd1201_setconfig16(zd, ZD1201_RID_CNFMAXASSOCSTATIONS, rrq->value); 1664 if (err) 1665 return err; 1666 return 0; 1667 } 1668 1669 static int zd1201_get_maxassoc(struct net_device *dev, 1670 struct iw_request_info *info, struct iw_param *rrq, char *extra) 1671 { 1672 struct zd1201 *zd = netdev_priv(dev); 1673 short maxassoc; 1674 int err; 1675 1676 if (!zd->ap) 1677 return -EOPNOTSUPP; 1678 1679 err = zd1201_getconfig16(zd, ZD1201_RID_CNFMAXASSOCSTATIONS, &maxassoc); 1680 if (err) 1681 return err; 1682 rrq->value = maxassoc; 1683 rrq->fixed = 1; 1684 1685 return 0; 1686 } 1687 1688 static const iw_handler zd1201_private_handler[] = { 1689 (iw_handler) zd1201_set_hostauth, /* ZD1201SIWHOSTAUTH */ 1690 (iw_handler) zd1201_get_hostauth, /* ZD1201GIWHOSTAUTH */ 1691 (iw_handler) zd1201_auth_sta, /* ZD1201SIWAUTHSTA */ 1692 (iw_handler) NULL, /* nothing to get */ 1693 (iw_handler) zd1201_set_maxassoc, /* ZD1201SIMAXASSOC */ 1694 (iw_handler) zd1201_get_maxassoc, /* ZD1201GIMAXASSOC */ 1695 }; 1696 1697 static const struct iw_priv_args zd1201_private_args[] = { 1698 { ZD1201SIWHOSTAUTH, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 1699 IW_PRIV_TYPE_NONE, "sethostauth" }, 1700 { ZD1201GIWHOSTAUTH, IW_PRIV_TYPE_NONE, 1701 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "gethostauth" }, 1702 { ZD1201SIWAUTHSTA, IW_PRIV_TYPE_ADDR | IW_PRIV_SIZE_FIXED | 1, 1703 IW_PRIV_TYPE_NONE, "authstation" }, 1704 { ZD1201SIWMAXASSOC, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 1705 IW_PRIV_TYPE_NONE, "setmaxassoc" }, 1706 { ZD1201GIWMAXASSOC, IW_PRIV_TYPE_NONE, 1707 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getmaxassoc" }, 1708 }; 1709 1710 static const struct iw_handler_def zd1201_iw_handlers = { 1711 .num_standard = ARRAY_SIZE(zd1201_iw_handler), 1712 .num_private = ARRAY_SIZE(zd1201_private_handler), 1713 .num_private_args = ARRAY_SIZE(zd1201_private_args), 1714 .standard = (iw_handler *)zd1201_iw_handler, 1715 .private = (iw_handler *)zd1201_private_handler, 1716 .private_args = (struct iw_priv_args *) zd1201_private_args, 1717 .get_wireless_stats = zd1201_get_wireless_stats, 1718 }; 1719 1720 static const struct net_device_ops zd1201_netdev_ops = { 1721 .ndo_open = zd1201_net_open, 1722 .ndo_stop = zd1201_net_stop, 1723 .ndo_start_xmit = zd1201_hard_start_xmit, 1724 .ndo_tx_timeout = zd1201_tx_timeout, 1725 .ndo_set_rx_mode = zd1201_set_multicast, 1726 .ndo_set_mac_address = zd1201_set_mac_address, 1727 .ndo_change_mtu = eth_change_mtu, 1728 .ndo_validate_addr = eth_validate_addr, 1729 }; 1730 1731 static int zd1201_probe(struct usb_interface *interface, 1732 const struct usb_device_id *id) 1733 { 1734 struct zd1201 *zd; 1735 struct net_device *dev; 1736 struct usb_device *usb; 1737 int err; 1738 short porttype; 1739 char buf[IW_ESSID_MAX_SIZE+2]; 1740 1741 usb = interface_to_usbdev(interface); 1742 1743 dev = alloc_etherdev(sizeof(*zd)); 1744 if (!dev) 1745 return -ENOMEM; 1746 zd = netdev_priv(dev); 1747 zd->dev = dev; 1748 1749 zd->ap = ap; 1750 zd->usb = usb; 1751 zd->removed = 0; 1752 init_waitqueue_head(&zd->rxdataq); 1753 INIT_HLIST_HEAD(&zd->fraglist); 1754 1755 err = zd1201_fw_upload(usb, zd->ap); 1756 if (err) { 1757 dev_err(&usb->dev, "zd1201 firmware upload failed: %d\n", err); 1758 goto err_zd; 1759 } 1760 1761 zd->endp_in = 1; 1762 zd->endp_out = 1; 1763 zd->endp_out2 = 2; 1764 zd->rx_urb = usb_alloc_urb(0, GFP_KERNEL); 1765 zd->tx_urb = usb_alloc_urb(0, GFP_KERNEL); 1766 if (!zd->rx_urb || !zd->tx_urb) { 1767 err = -ENOMEM; 1768 goto err_zd; 1769 } 1770 1771 mdelay(100); 1772 err = zd1201_drvr_start(zd); 1773 if (err) 1774 goto err_zd; 1775 1776 err = zd1201_setconfig16(zd, ZD1201_RID_CNFMAXDATALEN, 2312); 1777 if (err) 1778 goto err_start; 1779 1780 err = zd1201_setconfig16(zd, ZD1201_RID_TXRATECNTL, 1781 ZD1201_RATEB1 | ZD1201_RATEB2 | ZD1201_RATEB5 | ZD1201_RATEB11); 1782 if (err) 1783 goto err_start; 1784 1785 dev->netdev_ops = &zd1201_netdev_ops; 1786 dev->wireless_handlers = &zd1201_iw_handlers; 1787 dev->watchdog_timeo = ZD1201_TX_TIMEOUT; 1788 strcpy(dev->name, "wlan%d"); 1789 1790 err = zd1201_getconfig(zd, ZD1201_RID_CNFOWNMACADDR, 1791 dev->dev_addr, dev->addr_len); 1792 if (err) 1793 goto err_start; 1794 1795 /* Set wildcard essid to match zd->essid */ 1796 *(__le16 *)buf = cpu_to_le16(0); 1797 err = zd1201_setconfig(zd, ZD1201_RID_CNFDESIREDSSID, buf, 1798 IW_ESSID_MAX_SIZE+2, 1); 1799 if (err) 1800 goto err_start; 1801 1802 if (zd->ap) 1803 porttype = ZD1201_PORTTYPE_AP; 1804 else 1805 porttype = ZD1201_PORTTYPE_BSS; 1806 err = zd1201_setconfig16(zd, ZD1201_RID_CNFPORTTYPE, porttype); 1807 if (err) 1808 goto err_start; 1809 1810 SET_NETDEV_DEV(dev, &usb->dev); 1811 1812 err = register_netdev(dev); 1813 if (err) 1814 goto err_start; 1815 dev_info(&usb->dev, "%s: ZD1201 USB Wireless interface\n", 1816 dev->name); 1817 1818 usb_set_intfdata(interface, zd); 1819 zd1201_enable(zd); /* zd1201 likes to startup enabled, */ 1820 zd1201_disable(zd); /* interfering with all the wifis in range */ 1821 return 0; 1822 1823 err_start: 1824 /* Leave the device in reset state */ 1825 zd1201_docmd(zd, ZD1201_CMDCODE_INIT, 0, 0, 0); 1826 err_zd: 1827 usb_free_urb(zd->tx_urb); 1828 usb_free_urb(zd->rx_urb); 1829 free_netdev(dev); 1830 return err; 1831 } 1832 1833 static void zd1201_disconnect(struct usb_interface *interface) 1834 { 1835 struct zd1201 *zd = usb_get_intfdata(interface); 1836 struct hlist_node *node2; 1837 struct zd1201_frag *frag; 1838 1839 if (!zd) 1840 return; 1841 usb_set_intfdata(interface, NULL); 1842 1843 hlist_for_each_entry_safe(frag, node2, &zd->fraglist, fnode) { 1844 hlist_del_init(&frag->fnode); 1845 kfree_skb(frag->skb); 1846 kfree(frag); 1847 } 1848 1849 if (zd->tx_urb) { 1850 usb_kill_urb(zd->tx_urb); 1851 usb_free_urb(zd->tx_urb); 1852 } 1853 if (zd->rx_urb) { 1854 usb_kill_urb(zd->rx_urb); 1855 usb_free_urb(zd->rx_urb); 1856 } 1857 1858 if (zd->dev) { 1859 unregister_netdev(zd->dev); 1860 free_netdev(zd->dev); 1861 } 1862 } 1863 1864 #ifdef CONFIG_PM 1865 1866 static int zd1201_suspend(struct usb_interface *interface, 1867 pm_message_t message) 1868 { 1869 struct zd1201 *zd = usb_get_intfdata(interface); 1870 1871 netif_device_detach(zd->dev); 1872 1873 zd->was_enabled = zd->mac_enabled; 1874 1875 if (zd->was_enabled) 1876 return zd1201_disable(zd); 1877 else 1878 return 0; 1879 } 1880 1881 static int zd1201_resume(struct usb_interface *interface) 1882 { 1883 struct zd1201 *zd = usb_get_intfdata(interface); 1884 1885 if (!zd || !zd->dev) 1886 return -ENODEV; 1887 1888 netif_device_attach(zd->dev); 1889 1890 if (zd->was_enabled) 1891 return zd1201_enable(zd); 1892 else 1893 return 0; 1894 } 1895 1896 #else 1897 1898 #define zd1201_suspend NULL 1899 #define zd1201_resume NULL 1900 1901 #endif 1902 1903 static struct usb_driver zd1201_usb = { 1904 .name = "zd1201", 1905 .probe = zd1201_probe, 1906 .disconnect = zd1201_disconnect, 1907 .id_table = zd1201_table, 1908 .suspend = zd1201_suspend, 1909 .resume = zd1201_resume, 1910 .disable_hub_initiated_lpm = 1, 1911 }; 1912 1913 module_usb_driver(zd1201_usb); 1914