1 /* 2 * Copyright (c) 2006 Damien Bergamini <damien.bergamini@free.fr> 3 * Copyright (c) 2006 Sam Leffler, Errno Consulting 4 * Copyright (c) 2007 Christoph Hellwig <hch@lst.de> 5 * Copyright (c) 2008-2009 Weongyo Jeong <weongyo@freebsd.org> 6 * Copyright (c) 2012 Pontus Fuchs <pontus.fuchs@gmail.com> 7 * 8 * Permission to use, copy, modify, and/or distribute this software for any 9 * purpose with or without fee is hereby granted, provided that the above 10 * copyright notice and this permission notice appear in all copies. 11 * 12 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 13 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 14 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 15 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 16 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 17 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 18 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 19 */ 20 21 /* 22 * This driver is based on the uath driver written by Damien Bergamini for 23 * OpenBSD, who did black-box analysis of the Windows binary driver to find 24 * out how the hardware works. It contains a lot magic numbers because of 25 * that and only has minimal functionality. 26 */ 27 #include <linux/compiler.h> 28 #include <linux/init.h> 29 #include <linux/kernel.h> 30 #include <linux/module.h> 31 #include <linux/list.h> 32 #include <linux/completion.h> 33 #include <linux/firmware.h> 34 #include <linux/skbuff.h> 35 #include <linux/usb.h> 36 #include <net/mac80211.h> 37 38 #include "ar5523.h" 39 #include "ar5523_hw.h" 40 41 /* 42 * Various supported device vendors/products. 43 * UB51: AR5005UG 802.11b/g, UB52: AR5005UX 802.11a/b/g 44 */ 45 46 static int ar5523_submit_rx_cmd(struct ar5523 *ar); 47 static void ar5523_data_tx_pkt_put(struct ar5523 *ar); 48 49 static void ar5523_read_reply(struct ar5523 *ar, struct ar5523_cmd_hdr *hdr, 50 struct ar5523_tx_cmd *cmd) 51 { 52 int dlen, olen; 53 __be32 *rp; 54 55 dlen = be32_to_cpu(hdr->len) - sizeof(*hdr); 56 57 if (dlen < 0) { 58 WARN_ON(1); 59 goto out; 60 } 61 62 ar5523_dbg(ar, "Code = %d len = %d\n", be32_to_cpu(hdr->code) & 0xff, 63 dlen); 64 65 rp = (__be32 *)(hdr + 1); 66 if (dlen >= sizeof(u32)) { 67 olen = be32_to_cpu(rp[0]); 68 dlen -= sizeof(u32); 69 if (olen == 0) { 70 /* convention is 0 =>'s one word */ 71 olen = sizeof(u32); 72 } 73 } else 74 olen = 0; 75 76 if (cmd->odata) { 77 if (cmd->olen < olen) { 78 ar5523_err(ar, "olen to small %d < %d\n", 79 cmd->olen, olen); 80 cmd->olen = 0; 81 cmd->res = -EOVERFLOW; 82 } else { 83 cmd->olen = olen; 84 memcpy(cmd->odata, &rp[1], olen); 85 cmd->res = 0; 86 } 87 } 88 89 out: 90 complete(&cmd->done); 91 } 92 93 static void ar5523_cmd_rx_cb(struct urb *urb) 94 { 95 struct ar5523 *ar = urb->context; 96 struct ar5523_tx_cmd *cmd = &ar->tx_cmd; 97 struct ar5523_cmd_hdr *hdr = ar->rx_cmd_buf; 98 int dlen; 99 u32 code, hdrlen; 100 101 if (urb->status) { 102 if (urb->status != -ESHUTDOWN) 103 ar5523_err(ar, "RX USB error %d.\n", urb->status); 104 goto skip; 105 } 106 107 if (urb->actual_length < sizeof(struct ar5523_cmd_hdr)) { 108 ar5523_err(ar, "RX USB to short.\n"); 109 goto skip; 110 } 111 112 ar5523_dbg(ar, "%s code %02x priv %d\n", __func__, 113 be32_to_cpu(hdr->code) & 0xff, hdr->priv); 114 115 code = be32_to_cpu(hdr->code); 116 hdrlen = be32_to_cpu(hdr->len); 117 118 switch (code & 0xff) { 119 default: 120 /* reply to a read command */ 121 if (hdr->priv != AR5523_CMD_ID) { 122 ar5523_err(ar, "Unexpected command id: %02x\n", 123 code & 0xff); 124 goto skip; 125 } 126 ar5523_read_reply(ar, hdr, cmd); 127 break; 128 129 case WDCMSG_DEVICE_AVAIL: 130 ar5523_dbg(ar, "WDCMSG_DEVICE_AVAIL\n"); 131 cmd->res = 0; 132 cmd->olen = 0; 133 complete(&cmd->done); 134 break; 135 136 case WDCMSG_SEND_COMPLETE: 137 ar5523_dbg(ar, "WDCMSG_SEND_COMPLETE: %d pending\n", 138 atomic_read(&ar->tx_nr_pending)); 139 if (!test_bit(AR5523_HW_UP, &ar->flags)) 140 ar5523_dbg(ar, "Unexpected WDCMSG_SEND_COMPLETE\n"); 141 else { 142 mod_timer(&ar->tx_wd_timer, 143 jiffies + AR5523_TX_WD_TIMEOUT); 144 ar5523_data_tx_pkt_put(ar); 145 146 } 147 break; 148 149 case WDCMSG_TARGET_START: 150 /* This command returns a bogus id so it needs special 151 handling */ 152 dlen = hdrlen - sizeof(*hdr); 153 if (dlen != (int)sizeof(u32)) { 154 ar5523_err(ar, "Invalid reply to WDCMSG_TARGET_START"); 155 return; 156 } 157 memcpy(cmd->odata, hdr + 1, sizeof(u32)); 158 cmd->olen = sizeof(u32); 159 cmd->res = 0; 160 complete(&cmd->done); 161 break; 162 163 case WDCMSG_STATS_UPDATE: 164 ar5523_dbg(ar, "WDCMSG_STATS_UPDATE\n"); 165 break; 166 } 167 168 skip: 169 ar5523_submit_rx_cmd(ar); 170 } 171 172 static int ar5523_alloc_rx_cmd(struct ar5523 *ar) 173 { 174 ar->rx_cmd_urb = usb_alloc_urb(0, GFP_KERNEL); 175 if (!ar->rx_cmd_urb) 176 return -ENOMEM; 177 178 ar->rx_cmd_buf = usb_alloc_coherent(ar->dev, AR5523_MAX_RXCMDSZ, 179 GFP_KERNEL, 180 &ar->rx_cmd_urb->transfer_dma); 181 if (!ar->rx_cmd_buf) { 182 usb_free_urb(ar->rx_cmd_urb); 183 return -ENOMEM; 184 } 185 return 0; 186 } 187 188 static void ar5523_cancel_rx_cmd(struct ar5523 *ar) 189 { 190 usb_kill_urb(ar->rx_cmd_urb); 191 } 192 193 static void ar5523_free_rx_cmd(struct ar5523 *ar) 194 { 195 usb_free_coherent(ar->dev, AR5523_MAX_RXCMDSZ, 196 ar->rx_cmd_buf, ar->rx_cmd_urb->transfer_dma); 197 usb_free_urb(ar->rx_cmd_urb); 198 } 199 200 static int ar5523_submit_rx_cmd(struct ar5523 *ar) 201 { 202 int error; 203 204 usb_fill_bulk_urb(ar->rx_cmd_urb, ar->dev, 205 ar5523_cmd_rx_pipe(ar->dev), ar->rx_cmd_buf, 206 AR5523_MAX_RXCMDSZ, ar5523_cmd_rx_cb, ar); 207 ar->rx_cmd_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; 208 209 error = usb_submit_urb(ar->rx_cmd_urb, GFP_ATOMIC); 210 if (error) { 211 if (error != -ENODEV) 212 ar5523_err(ar, "error %d when submitting rx urb\n", 213 error); 214 return error; 215 } 216 return 0; 217 } 218 219 /* 220 * Command submitted cb 221 */ 222 static void ar5523_cmd_tx_cb(struct urb *urb) 223 { 224 struct ar5523_tx_cmd *cmd = urb->context; 225 struct ar5523 *ar = cmd->ar; 226 227 if (urb->status) { 228 ar5523_err(ar, "Failed to TX command. Status = %d\n", 229 urb->status); 230 cmd->res = urb->status; 231 complete(&cmd->done); 232 return; 233 } 234 235 if (!(cmd->flags & AR5523_CMD_FLAG_READ)) { 236 cmd->res = 0; 237 complete(&cmd->done); 238 } 239 } 240 241 static int ar5523_cmd(struct ar5523 *ar, u32 code, const void *idata, 242 int ilen, void *odata, int olen, int flags) 243 { 244 struct ar5523_cmd_hdr *hdr; 245 struct ar5523_tx_cmd *cmd = &ar->tx_cmd; 246 int xferlen, error; 247 248 /* always bulk-out a multiple of 4 bytes */ 249 xferlen = (sizeof(struct ar5523_cmd_hdr) + ilen + 3) & ~3; 250 251 hdr = (struct ar5523_cmd_hdr *)cmd->buf_tx; 252 memset(hdr, 0, sizeof(struct ar5523_cmd_hdr)); 253 hdr->len = cpu_to_be32(xferlen); 254 hdr->code = cpu_to_be32(code); 255 hdr->priv = AR5523_CMD_ID; 256 257 if (flags & AR5523_CMD_FLAG_MAGIC) 258 hdr->magic = cpu_to_be32(1 << 24); 259 memcpy(hdr + 1, idata, ilen); 260 261 cmd->odata = odata; 262 cmd->olen = olen; 263 cmd->flags = flags; 264 265 ar5523_dbg(ar, "do cmd %02x\n", code); 266 267 usb_fill_bulk_urb(cmd->urb_tx, ar->dev, ar5523_cmd_tx_pipe(ar->dev), 268 cmd->buf_tx, xferlen, ar5523_cmd_tx_cb, cmd); 269 cmd->urb_tx->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; 270 271 error = usb_submit_urb(cmd->urb_tx, GFP_KERNEL); 272 if (error) { 273 ar5523_err(ar, "could not send command 0x%x, error=%d\n", 274 code, error); 275 return error; 276 } 277 278 if (!wait_for_completion_timeout(&cmd->done, 2 * HZ)) { 279 cmd->odata = NULL; 280 ar5523_err(ar, "timeout waiting for command %02x reply\n", 281 code); 282 cmd->res = -ETIMEDOUT; 283 } 284 return cmd->res; 285 } 286 287 static int ar5523_cmd_write(struct ar5523 *ar, u32 code, const void *data, 288 int len, int flags) 289 { 290 flags &= ~AR5523_CMD_FLAG_READ; 291 return ar5523_cmd(ar, code, data, len, NULL, 0, flags); 292 } 293 294 static int ar5523_cmd_read(struct ar5523 *ar, u32 code, const void *idata, 295 int ilen, void *odata, int olen, int flags) 296 { 297 flags |= AR5523_CMD_FLAG_READ; 298 return ar5523_cmd(ar, code, idata, ilen, odata, olen, flags); 299 } 300 301 static int ar5523_config(struct ar5523 *ar, u32 reg, u32 val) 302 { 303 struct ar5523_write_mac write; 304 int error; 305 306 write.reg = cpu_to_be32(reg); 307 write.len = cpu_to_be32(0); /* 0 = single write */ 308 *(__be32 *)write.data = cpu_to_be32(val); 309 310 error = ar5523_cmd_write(ar, WDCMSG_TARGET_SET_CONFIG, &write, 311 3 * sizeof(u32), 0); 312 if (error != 0) 313 ar5523_err(ar, "could not write register 0x%02x\n", reg); 314 return error; 315 } 316 317 static int ar5523_config_multi(struct ar5523 *ar, u32 reg, const void *data, 318 int len) 319 { 320 struct ar5523_write_mac write; 321 int error; 322 323 write.reg = cpu_to_be32(reg); 324 write.len = cpu_to_be32(len); 325 memcpy(write.data, data, len); 326 327 /* properly handle the case where len is zero (reset) */ 328 error = ar5523_cmd_write(ar, WDCMSG_TARGET_SET_CONFIG, &write, 329 (len == 0) ? sizeof(u32) : 2 * sizeof(u32) + len, 0); 330 if (error != 0) 331 ar5523_err(ar, "could not write %d bytes to register 0x%02x\n", 332 len, reg); 333 return error; 334 } 335 336 static int ar5523_get_status(struct ar5523 *ar, u32 which, void *odata, 337 int olen) 338 { 339 int error; 340 __be32 which_be; 341 342 which_be = cpu_to_be32(which); 343 error = ar5523_cmd_read(ar, WDCMSG_TARGET_GET_STATUS, 344 &which_be, sizeof(which_be), odata, olen, AR5523_CMD_FLAG_MAGIC); 345 if (error != 0) 346 ar5523_err(ar, "could not read EEPROM offset 0x%02x\n", which); 347 return error; 348 } 349 350 static int ar5523_get_capability(struct ar5523 *ar, u32 cap, u32 *val) 351 { 352 int error; 353 __be32 cap_be, val_be; 354 355 cap_be = cpu_to_be32(cap); 356 error = ar5523_cmd_read(ar, WDCMSG_TARGET_GET_CAPABILITY, &cap_be, 357 sizeof(cap_be), &val_be, sizeof(__be32), 358 AR5523_CMD_FLAG_MAGIC); 359 if (error != 0) { 360 ar5523_err(ar, "could not read capability %u\n", cap); 361 return error; 362 } 363 *val = be32_to_cpu(val_be); 364 return error; 365 } 366 367 static int ar5523_get_devcap(struct ar5523 *ar) 368 { 369 #define GETCAP(x) do { \ 370 error = ar5523_get_capability(ar, x, &cap); \ 371 if (error != 0) \ 372 return error; \ 373 ar5523_info(ar, "Cap: " \ 374 "%s=0x%08x\n", #x, cap); \ 375 } while (0) 376 int error; 377 u32 cap; 378 379 /* collect device capabilities */ 380 GETCAP(CAP_TARGET_VERSION); 381 GETCAP(CAP_TARGET_REVISION); 382 GETCAP(CAP_MAC_VERSION); 383 GETCAP(CAP_MAC_REVISION); 384 GETCAP(CAP_PHY_REVISION); 385 GETCAP(CAP_ANALOG_5GHz_REVISION); 386 GETCAP(CAP_ANALOG_2GHz_REVISION); 387 388 GETCAP(CAP_REG_DOMAIN); 389 GETCAP(CAP_REG_CAP_BITS); 390 GETCAP(CAP_WIRELESS_MODES); 391 GETCAP(CAP_CHAN_SPREAD_SUPPORT); 392 GETCAP(CAP_COMPRESS_SUPPORT); 393 GETCAP(CAP_BURST_SUPPORT); 394 GETCAP(CAP_FAST_FRAMES_SUPPORT); 395 GETCAP(CAP_CHAP_TUNING_SUPPORT); 396 GETCAP(CAP_TURBOG_SUPPORT); 397 GETCAP(CAP_TURBO_PRIME_SUPPORT); 398 GETCAP(CAP_DEVICE_TYPE); 399 GETCAP(CAP_WME_SUPPORT); 400 GETCAP(CAP_TOTAL_QUEUES); 401 GETCAP(CAP_CONNECTION_ID_MAX); 402 403 GETCAP(CAP_LOW_5GHZ_CHAN); 404 GETCAP(CAP_HIGH_5GHZ_CHAN); 405 GETCAP(CAP_LOW_2GHZ_CHAN); 406 GETCAP(CAP_HIGH_2GHZ_CHAN); 407 GETCAP(CAP_TWICE_ANTENNAGAIN_5G); 408 GETCAP(CAP_TWICE_ANTENNAGAIN_2G); 409 410 GETCAP(CAP_CIPHER_AES_CCM); 411 GETCAP(CAP_CIPHER_TKIP); 412 GETCAP(CAP_MIC_TKIP); 413 return 0; 414 } 415 416 static int ar5523_set_ledsteady(struct ar5523 *ar, int lednum, int ledmode) 417 { 418 struct ar5523_cmd_ledsteady led; 419 420 led.lednum = cpu_to_be32(lednum); 421 led.ledmode = cpu_to_be32(ledmode); 422 423 ar5523_dbg(ar, "set %s led %s (steady)\n", 424 (lednum == UATH_LED_LINK) ? "link" : "activity", 425 ledmode ? "on" : "off"); 426 return ar5523_cmd_write(ar, WDCMSG_SET_LED_STEADY, &led, sizeof(led), 427 0); 428 } 429 430 static int ar5523_set_rxfilter(struct ar5523 *ar, u32 bits, u32 op) 431 { 432 struct ar5523_cmd_rx_filter rxfilter; 433 434 rxfilter.bits = cpu_to_be32(bits); 435 rxfilter.op = cpu_to_be32(op); 436 437 ar5523_dbg(ar, "setting Rx filter=0x%x flags=0x%x\n", bits, op); 438 return ar5523_cmd_write(ar, WDCMSG_RX_FILTER, &rxfilter, 439 sizeof(rxfilter), 0); 440 } 441 442 static int ar5523_reset_tx_queues(struct ar5523 *ar) 443 { 444 __be32 qid = cpu_to_be32(0); 445 446 ar5523_dbg(ar, "resetting Tx queue\n"); 447 return ar5523_cmd_write(ar, WDCMSG_RELEASE_TX_QUEUE, 448 &qid, sizeof(qid), 0); 449 } 450 451 static int ar5523_set_chan(struct ar5523 *ar) 452 { 453 struct ieee80211_conf *conf = &ar->hw->conf; 454 455 struct ar5523_cmd_reset reset; 456 457 memset(&reset, 0, sizeof(reset)); 458 reset.flags |= cpu_to_be32(UATH_CHAN_2GHZ); 459 reset.flags |= cpu_to_be32(UATH_CHAN_OFDM); 460 reset.freq = cpu_to_be32(conf->chandef.chan->center_freq); 461 reset.maxrdpower = cpu_to_be32(50); /* XXX */ 462 reset.channelchange = cpu_to_be32(1); 463 reset.keeprccontent = cpu_to_be32(0); 464 465 ar5523_dbg(ar, "set chan flags 0x%x freq %d\n", 466 be32_to_cpu(reset.flags), 467 conf->chandef.chan->center_freq); 468 return ar5523_cmd_write(ar, WDCMSG_RESET, &reset, sizeof(reset), 0); 469 } 470 471 static int ar5523_queue_init(struct ar5523 *ar) 472 { 473 struct ar5523_cmd_txq_setup qinfo; 474 475 ar5523_dbg(ar, "setting up Tx queue\n"); 476 qinfo.qid = cpu_to_be32(0); 477 qinfo.len = cpu_to_be32(sizeof(qinfo.attr)); 478 qinfo.attr.priority = cpu_to_be32(0); /* XXX */ 479 qinfo.attr.aifs = cpu_to_be32(3); 480 qinfo.attr.logcwmin = cpu_to_be32(4); 481 qinfo.attr.logcwmax = cpu_to_be32(10); 482 qinfo.attr.bursttime = cpu_to_be32(0); 483 qinfo.attr.mode = cpu_to_be32(0); 484 qinfo.attr.qflags = cpu_to_be32(1); /* XXX? */ 485 return ar5523_cmd_write(ar, WDCMSG_SETUP_TX_QUEUE, &qinfo, 486 sizeof(qinfo), 0); 487 } 488 489 static int ar5523_switch_chan(struct ar5523 *ar) 490 { 491 int error; 492 493 error = ar5523_set_chan(ar); 494 if (error) { 495 ar5523_err(ar, "could not set chan, error %d\n", error); 496 goto out_err; 497 } 498 499 /* reset Tx rings */ 500 error = ar5523_reset_tx_queues(ar); 501 if (error) { 502 ar5523_err(ar, "could not reset Tx queues, error %d\n", 503 error); 504 goto out_err; 505 } 506 /* set Tx rings WME properties */ 507 error = ar5523_queue_init(ar); 508 if (error) 509 ar5523_err(ar, "could not init wme, error %d\n", error); 510 511 out_err: 512 return error; 513 } 514 515 static void ar5523_rx_data_put(struct ar5523 *ar, 516 struct ar5523_rx_data *data) 517 { 518 unsigned long flags; 519 spin_lock_irqsave(&ar->rx_data_list_lock, flags); 520 list_move(&data->list, &ar->rx_data_free); 521 spin_unlock_irqrestore(&ar->rx_data_list_lock, flags); 522 } 523 524 static void ar5523_data_rx_cb(struct urb *urb) 525 { 526 struct ar5523_rx_data *data = urb->context; 527 struct ar5523 *ar = data->ar; 528 struct ar5523_rx_desc *desc; 529 struct ar5523_chunk *chunk; 530 struct ieee80211_hw *hw = ar->hw; 531 struct ieee80211_rx_status *rx_status; 532 u32 rxlen; 533 int usblen = urb->actual_length; 534 int hdrlen, pad; 535 536 ar5523_dbg(ar, "%s\n", __func__); 537 /* sync/async unlink faults aren't errors */ 538 if (urb->status) { 539 if (urb->status != -ESHUTDOWN) 540 ar5523_err(ar, "%s: USB err: %d\n", __func__, 541 urb->status); 542 goto skip; 543 } 544 545 if (usblen < AR5523_MIN_RXBUFSZ) { 546 ar5523_err(ar, "RX: wrong xfer size (usblen=%d)\n", usblen); 547 goto skip; 548 } 549 550 chunk = (struct ar5523_chunk *) data->skb->data; 551 552 if (((chunk->flags & UATH_CFLAGS_FINAL) == 0) || 553 chunk->seqnum != 0) { 554 ar5523_dbg(ar, "RX: No final flag. s: %d f: %02x l: %d\n", 555 chunk->seqnum, chunk->flags, 556 be16_to_cpu(chunk->length)); 557 goto skip; 558 } 559 560 /* Rx descriptor is located at the end, 32-bit aligned */ 561 desc = (struct ar5523_rx_desc *) 562 (data->skb->data + usblen - sizeof(struct ar5523_rx_desc)); 563 564 rxlen = be32_to_cpu(desc->len); 565 if (rxlen > ar->rxbufsz) { 566 ar5523_dbg(ar, "RX: Bad descriptor (len=%d)\n", 567 be32_to_cpu(desc->len)); 568 goto skip; 569 } 570 571 if (!rxlen) { 572 ar5523_dbg(ar, "RX: rxlen is 0\n"); 573 goto skip; 574 } 575 576 if (be32_to_cpu(desc->status) != 0) { 577 ar5523_dbg(ar, "Bad RX status (0x%x len = %d). Skip\n", 578 be32_to_cpu(desc->status), be32_to_cpu(desc->len)); 579 goto skip; 580 } 581 582 skb_reserve(data->skb, sizeof(*chunk)); 583 skb_put(data->skb, rxlen - sizeof(struct ar5523_rx_desc)); 584 585 hdrlen = ieee80211_get_hdrlen_from_skb(data->skb); 586 if (!IS_ALIGNED(hdrlen, 4)) { 587 ar5523_dbg(ar, "eek, alignment workaround activated\n"); 588 pad = ALIGN(hdrlen, 4) - hdrlen; 589 memmove(data->skb->data + pad, data->skb->data, hdrlen); 590 skb_pull(data->skb, pad); 591 skb_put(data->skb, pad); 592 } 593 594 rx_status = IEEE80211_SKB_RXCB(data->skb); 595 memset(rx_status, 0, sizeof(*rx_status)); 596 rx_status->freq = be32_to_cpu(desc->channel); 597 rx_status->band = hw->conf.chandef.chan->band; 598 rx_status->signal = -95 + be32_to_cpu(desc->rssi); 599 600 ieee80211_rx_irqsafe(hw, data->skb); 601 data->skb = NULL; 602 603 skip: 604 if (data->skb) { 605 dev_kfree_skb_irq(data->skb); 606 data->skb = NULL; 607 } 608 609 ar5523_rx_data_put(ar, data); 610 if (atomic_inc_return(&ar->rx_data_free_cnt) >= 611 AR5523_RX_DATA_REFILL_COUNT && 612 test_bit(AR5523_HW_UP, &ar->flags)) 613 queue_work(ar->wq, &ar->rx_refill_work); 614 } 615 616 static void ar5523_rx_refill_work(struct work_struct *work) 617 { 618 struct ar5523 *ar = container_of(work, struct ar5523, rx_refill_work); 619 struct ar5523_rx_data *data; 620 unsigned long flags; 621 int error; 622 623 ar5523_dbg(ar, "%s\n", __func__); 624 do { 625 spin_lock_irqsave(&ar->rx_data_list_lock, flags); 626 627 if (!list_empty(&ar->rx_data_free)) 628 data = (struct ar5523_rx_data *) ar->rx_data_free.next; 629 else 630 data = NULL; 631 spin_unlock_irqrestore(&ar->rx_data_list_lock, flags); 632 633 if (!data) 634 goto done; 635 636 data->skb = alloc_skb(ar->rxbufsz, GFP_KERNEL); 637 if (!data->skb) { 638 ar5523_err(ar, "could not allocate rx skbuff\n"); 639 return; 640 } 641 642 usb_fill_bulk_urb(data->urb, ar->dev, 643 ar5523_data_rx_pipe(ar->dev), data->skb->data, 644 ar->rxbufsz, ar5523_data_rx_cb, data); 645 646 spin_lock_irqsave(&ar->rx_data_list_lock, flags); 647 list_move(&data->list, &ar->rx_data_used); 648 spin_unlock_irqrestore(&ar->rx_data_list_lock, flags); 649 atomic_dec(&ar->rx_data_free_cnt); 650 651 error = usb_submit_urb(data->urb, GFP_KERNEL); 652 if (error) { 653 kfree_skb(data->skb); 654 if (error != -ENODEV) 655 ar5523_err(ar, "Err sending rx data urb %d\n", 656 error); 657 ar5523_rx_data_put(ar, data); 658 atomic_inc(&ar->rx_data_free_cnt); 659 return; 660 } 661 662 } while (true); 663 done: 664 return; 665 } 666 667 static void ar5523_cancel_rx_bufs(struct ar5523 *ar) 668 { 669 struct ar5523_rx_data *data; 670 unsigned long flags; 671 672 do { 673 spin_lock_irqsave(&ar->rx_data_list_lock, flags); 674 if (!list_empty(&ar->rx_data_used)) 675 data = (struct ar5523_rx_data *) ar->rx_data_used.next; 676 else 677 data = NULL; 678 spin_unlock_irqrestore(&ar->rx_data_list_lock, flags); 679 680 if (!data) 681 break; 682 683 usb_kill_urb(data->urb); 684 list_move(&data->list, &ar->rx_data_free); 685 atomic_inc(&ar->rx_data_free_cnt); 686 } while (data); 687 } 688 689 static void ar5523_free_rx_bufs(struct ar5523 *ar) 690 { 691 struct ar5523_rx_data *data; 692 693 ar5523_cancel_rx_bufs(ar); 694 while (!list_empty(&ar->rx_data_free)) { 695 data = (struct ar5523_rx_data *) ar->rx_data_free.next; 696 list_del(&data->list); 697 usb_free_urb(data->urb); 698 } 699 } 700 701 static int ar5523_alloc_rx_bufs(struct ar5523 *ar) 702 { 703 int i; 704 705 for (i = 0; i < AR5523_RX_DATA_COUNT; i++) { 706 struct ar5523_rx_data *data = &ar->rx_data[i]; 707 708 data->ar = ar; 709 data->urb = usb_alloc_urb(0, GFP_KERNEL); 710 if (!data->urb) { 711 ar5523_err(ar, "could not allocate rx data urb\n"); 712 goto err; 713 } 714 list_add_tail(&data->list, &ar->rx_data_free); 715 atomic_inc(&ar->rx_data_free_cnt); 716 } 717 return 0; 718 719 err: 720 ar5523_free_rx_bufs(ar); 721 return -ENOMEM; 722 } 723 724 static void ar5523_data_tx_pkt_put(struct ar5523 *ar) 725 { 726 atomic_dec(&ar->tx_nr_total); 727 if (!atomic_dec_return(&ar->tx_nr_pending)) { 728 del_timer(&ar->tx_wd_timer); 729 wake_up(&ar->tx_flush_waitq); 730 } 731 732 if (atomic_read(&ar->tx_nr_total) < AR5523_TX_DATA_RESTART_COUNT) { 733 ar5523_dbg(ar, "restart tx queue\n"); 734 ieee80211_wake_queues(ar->hw); 735 } 736 } 737 738 static void ar5523_data_tx_cb(struct urb *urb) 739 { 740 struct sk_buff *skb = urb->context; 741 struct ieee80211_tx_info *txi = IEEE80211_SKB_CB(skb); 742 struct ar5523_tx_data *data = (struct ar5523_tx_data *) 743 txi->driver_data; 744 struct ar5523 *ar = data->ar; 745 unsigned long flags; 746 747 ar5523_dbg(ar, "data tx urb completed: %d\n", urb->status); 748 749 spin_lock_irqsave(&ar->tx_data_list_lock, flags); 750 list_del(&data->list); 751 spin_unlock_irqrestore(&ar->tx_data_list_lock, flags); 752 753 if (urb->status) { 754 ar5523_dbg(ar, "%s: urb status: %d\n", __func__, urb->status); 755 ar5523_data_tx_pkt_put(ar); 756 ieee80211_free_txskb(ar->hw, skb); 757 } else { 758 skb_pull(skb, sizeof(struct ar5523_tx_desc) + sizeof(__be32)); 759 ieee80211_tx_status_irqsafe(ar->hw, skb); 760 } 761 usb_free_urb(urb); 762 } 763 764 static void ar5523_tx(struct ieee80211_hw *hw, 765 struct ieee80211_tx_control *control, 766 struct sk_buff *skb) 767 { 768 struct ieee80211_tx_info *txi = IEEE80211_SKB_CB(skb); 769 struct ar5523_tx_data *data = (struct ar5523_tx_data *) 770 txi->driver_data; 771 struct ar5523 *ar = hw->priv; 772 unsigned long flags; 773 774 ar5523_dbg(ar, "tx called\n"); 775 if (atomic_inc_return(&ar->tx_nr_total) >= AR5523_TX_DATA_COUNT) { 776 ar5523_dbg(ar, "tx queue full\n"); 777 ar5523_dbg(ar, "stop queues (tot %d pend %d)\n", 778 atomic_read(&ar->tx_nr_total), 779 atomic_read(&ar->tx_nr_pending)); 780 ieee80211_stop_queues(hw); 781 } 782 783 data->skb = skb; 784 785 spin_lock_irqsave(&ar->tx_data_list_lock, flags); 786 list_add_tail(&data->list, &ar->tx_queue_pending); 787 spin_unlock_irqrestore(&ar->tx_data_list_lock, flags); 788 789 ieee80211_queue_work(ar->hw, &ar->tx_work); 790 } 791 792 static void ar5523_tx_work_locked(struct ar5523 *ar) 793 { 794 struct ar5523_tx_data *data; 795 struct ar5523_tx_desc *desc; 796 struct ar5523_chunk *chunk; 797 struct ieee80211_tx_info *txi; 798 struct urb *urb; 799 struct sk_buff *skb; 800 int error = 0, paylen; 801 u32 txqid; 802 unsigned long flags; 803 804 BUILD_BUG_ON(sizeof(struct ar5523_tx_data) > 805 IEEE80211_TX_INFO_DRIVER_DATA_SIZE); 806 807 ar5523_dbg(ar, "%s\n", __func__); 808 do { 809 spin_lock_irqsave(&ar->tx_data_list_lock, flags); 810 if (!list_empty(&ar->tx_queue_pending)) { 811 data = (struct ar5523_tx_data *) 812 ar->tx_queue_pending.next; 813 list_del(&data->list); 814 } else 815 data = NULL; 816 spin_unlock_irqrestore(&ar->tx_data_list_lock, flags); 817 818 if (!data) 819 break; 820 821 skb = data->skb; 822 txqid = 0; 823 txi = IEEE80211_SKB_CB(skb); 824 paylen = skb->len; 825 urb = usb_alloc_urb(0, GFP_KERNEL); 826 if (!urb) { 827 ar5523_err(ar, "Failed to allocate TX urb\n"); 828 ieee80211_free_txskb(ar->hw, skb); 829 continue; 830 } 831 832 data->ar = ar; 833 data->urb = urb; 834 835 desc = (struct ar5523_tx_desc *)skb_push(skb, sizeof(*desc)); 836 chunk = (struct ar5523_chunk *)skb_push(skb, sizeof(*chunk)); 837 838 chunk->seqnum = 0; 839 chunk->flags = UATH_CFLAGS_FINAL; 840 chunk->length = cpu_to_be16(skb->len); 841 842 desc->msglen = cpu_to_be32(skb->len); 843 desc->msgid = AR5523_DATA_ID; 844 desc->buflen = cpu_to_be32(paylen); 845 desc->type = cpu_to_be32(WDCMSG_SEND); 846 desc->flags = cpu_to_be32(UATH_TX_NOTIFY); 847 848 if (test_bit(AR5523_CONNECTED, &ar->flags)) 849 desc->connid = cpu_to_be32(AR5523_ID_BSS); 850 else 851 desc->connid = cpu_to_be32(AR5523_ID_BROADCAST); 852 853 if (txi->flags & IEEE80211_TX_CTL_USE_MINRATE) 854 txqid |= UATH_TXQID_MINRATE; 855 856 desc->txqid = cpu_to_be32(txqid); 857 858 urb->transfer_flags = URB_ZERO_PACKET; 859 usb_fill_bulk_urb(urb, ar->dev, ar5523_data_tx_pipe(ar->dev), 860 skb->data, skb->len, ar5523_data_tx_cb, skb); 861 862 spin_lock_irqsave(&ar->tx_data_list_lock, flags); 863 list_add_tail(&data->list, &ar->tx_queue_submitted); 864 spin_unlock_irqrestore(&ar->tx_data_list_lock, flags); 865 mod_timer(&ar->tx_wd_timer, jiffies + AR5523_TX_WD_TIMEOUT); 866 atomic_inc(&ar->tx_nr_pending); 867 868 ar5523_dbg(ar, "TX Frame (%d pending)\n", 869 atomic_read(&ar->tx_nr_pending)); 870 error = usb_submit_urb(urb, GFP_KERNEL); 871 if (error) { 872 ar5523_err(ar, "error %d when submitting tx urb\n", 873 error); 874 spin_lock_irqsave(&ar->tx_data_list_lock, flags); 875 list_del(&data->list); 876 spin_unlock_irqrestore(&ar->tx_data_list_lock, flags); 877 atomic_dec(&ar->tx_nr_pending); 878 ar5523_data_tx_pkt_put(ar); 879 usb_free_urb(urb); 880 ieee80211_free_txskb(ar->hw, skb); 881 } 882 } while (true); 883 } 884 885 static void ar5523_tx_work(struct work_struct *work) 886 { 887 struct ar5523 *ar = container_of(work, struct ar5523, tx_work); 888 889 ar5523_dbg(ar, "%s\n", __func__); 890 mutex_lock(&ar->mutex); 891 ar5523_tx_work_locked(ar); 892 mutex_unlock(&ar->mutex); 893 } 894 895 static void ar5523_tx_wd_timer(unsigned long arg) 896 { 897 struct ar5523 *ar = (struct ar5523 *) arg; 898 899 ar5523_dbg(ar, "TX watchdog timer triggered\n"); 900 ieee80211_queue_work(ar->hw, &ar->tx_wd_work); 901 } 902 903 static void ar5523_tx_wd_work(struct work_struct *work) 904 { 905 struct ar5523 *ar = container_of(work, struct ar5523, tx_wd_work); 906 907 /* Occasionally the TX queues stop responding. The only way to 908 * recover seems to be to reset the dongle. 909 */ 910 911 mutex_lock(&ar->mutex); 912 ar5523_err(ar, "TX queue stuck (tot %d pend %d)\n", 913 atomic_read(&ar->tx_nr_total), 914 atomic_read(&ar->tx_nr_pending)); 915 916 ar5523_err(ar, "Will restart dongle.\n"); 917 ar5523_cmd_write(ar, WDCMSG_TARGET_RESET, NULL, 0, 0); 918 mutex_unlock(&ar->mutex); 919 } 920 921 static void ar5523_flush_tx(struct ar5523 *ar) 922 { 923 ar5523_tx_work_locked(ar); 924 925 /* Don't waste time trying to flush if USB is disconnected */ 926 if (test_bit(AR5523_USB_DISCONNECTED, &ar->flags)) 927 return; 928 if (!wait_event_timeout(ar->tx_flush_waitq, 929 !atomic_read(&ar->tx_nr_pending), AR5523_FLUSH_TIMEOUT)) 930 ar5523_err(ar, "flush timeout (tot %d pend %d)\n", 931 atomic_read(&ar->tx_nr_total), 932 atomic_read(&ar->tx_nr_pending)); 933 } 934 935 static void ar5523_free_tx_cmd(struct ar5523 *ar) 936 { 937 struct ar5523_tx_cmd *cmd = &ar->tx_cmd; 938 939 usb_free_coherent(ar->dev, AR5523_MAX_RXCMDSZ, cmd->buf_tx, 940 cmd->urb_tx->transfer_dma); 941 usb_free_urb(cmd->urb_tx); 942 } 943 944 static int ar5523_alloc_tx_cmd(struct ar5523 *ar) 945 { 946 struct ar5523_tx_cmd *cmd = &ar->tx_cmd; 947 948 cmd->ar = ar; 949 init_completion(&cmd->done); 950 951 cmd->urb_tx = usb_alloc_urb(0, GFP_KERNEL); 952 if (!cmd->urb_tx) { 953 ar5523_err(ar, "could not allocate urb\n"); 954 return -ENOMEM; 955 } 956 cmd->buf_tx = usb_alloc_coherent(ar->dev, AR5523_MAX_TXCMDSZ, 957 GFP_KERNEL, 958 &cmd->urb_tx->transfer_dma); 959 if (!cmd->buf_tx) { 960 usb_free_urb(cmd->urb_tx); 961 return -ENOMEM; 962 } 963 return 0; 964 } 965 966 /* 967 * This function is called periodically (every second) when associated to 968 * query device statistics. 969 */ 970 static void ar5523_stat_work(struct work_struct *work) 971 { 972 struct ar5523 *ar = container_of(work, struct ar5523, stat_work.work); 973 int error; 974 975 ar5523_dbg(ar, "%s\n", __func__); 976 mutex_lock(&ar->mutex); 977 978 /* 979 * Send request for statistics asynchronously once a second. This 980 * seems to be important. Throughput is a lot better if this is done. 981 */ 982 error = ar5523_cmd_write(ar, WDCMSG_TARGET_GET_STATS, NULL, 0, 0); 983 if (error) 984 ar5523_err(ar, "could not query stats, error %d\n", error); 985 mutex_unlock(&ar->mutex); 986 ieee80211_queue_delayed_work(ar->hw, &ar->stat_work, HZ); 987 } 988 989 /* 990 * Interface routines to the mac80211 stack. 991 */ 992 static int ar5523_start(struct ieee80211_hw *hw) 993 { 994 struct ar5523 *ar = hw->priv; 995 int error; 996 __be32 val; 997 998 ar5523_dbg(ar, "start called\n"); 999 1000 mutex_lock(&ar->mutex); 1001 val = cpu_to_be32(0); 1002 ar5523_cmd_write(ar, WDCMSG_BIND, &val, sizeof(val), 0); 1003 1004 /* set MAC address */ 1005 ar5523_config_multi(ar, CFG_MAC_ADDR, &ar->hw->wiphy->perm_addr, 1006 ETH_ALEN); 1007 1008 /* XXX honor net80211 state */ 1009 ar5523_config(ar, CFG_RATE_CONTROL_ENABLE, 0x00000001); 1010 ar5523_config(ar, CFG_DIVERSITY_CTL, 0x00000001); 1011 ar5523_config(ar, CFG_ABOLT, 0x0000003f); 1012 ar5523_config(ar, CFG_WME_ENABLED, 0x00000000); 1013 1014 ar5523_config(ar, CFG_SERVICE_TYPE, 1); 1015 ar5523_config(ar, CFG_TP_SCALE, 0x00000000); 1016 ar5523_config(ar, CFG_TPC_HALF_DBM5, 0x0000003c); 1017 ar5523_config(ar, CFG_TPC_HALF_DBM2, 0x0000003c); 1018 ar5523_config(ar, CFG_OVERRD_TX_POWER, 0x00000000); 1019 ar5523_config(ar, CFG_GMODE_PROTECTION, 0x00000000); 1020 ar5523_config(ar, CFG_GMODE_PROTECT_RATE_INDEX, 0x00000003); 1021 ar5523_config(ar, CFG_PROTECTION_TYPE, 0x00000000); 1022 ar5523_config(ar, CFG_MODE_CTS, 0x00000002); 1023 1024 error = ar5523_cmd_read(ar, WDCMSG_TARGET_START, NULL, 0, 1025 &val, sizeof(val), AR5523_CMD_FLAG_MAGIC); 1026 if (error) { 1027 ar5523_dbg(ar, "could not start target, error %d\n", error); 1028 goto err; 1029 } 1030 ar5523_dbg(ar, "WDCMSG_TARGET_START returns handle: 0x%x\n", 1031 be32_to_cpu(val)); 1032 1033 ar5523_switch_chan(ar); 1034 1035 val = cpu_to_be32(TARGET_DEVICE_AWAKE); 1036 ar5523_cmd_write(ar, WDCMSG_SET_PWR_MODE, &val, sizeof(val), 0); 1037 /* XXX? check */ 1038 ar5523_cmd_write(ar, WDCMSG_RESET_KEY_CACHE, NULL, 0, 0); 1039 1040 set_bit(AR5523_HW_UP, &ar->flags); 1041 queue_work(ar->wq, &ar->rx_refill_work); 1042 1043 /* enable Rx */ 1044 ar5523_set_rxfilter(ar, 0, UATH_FILTER_OP_INIT); 1045 ar5523_set_rxfilter(ar, 1046 UATH_FILTER_RX_UCAST | UATH_FILTER_RX_MCAST | 1047 UATH_FILTER_RX_BCAST | UATH_FILTER_RX_BEACON, 1048 UATH_FILTER_OP_SET); 1049 1050 ar5523_set_ledsteady(ar, UATH_LED_ACTIVITY, UATH_LED_ON); 1051 ar5523_dbg(ar, "start OK\n"); 1052 1053 err: 1054 mutex_unlock(&ar->mutex); 1055 return error; 1056 } 1057 1058 static void ar5523_stop(struct ieee80211_hw *hw) 1059 { 1060 struct ar5523 *ar = hw->priv; 1061 1062 ar5523_dbg(ar, "stop called\n"); 1063 1064 cancel_delayed_work_sync(&ar->stat_work); 1065 mutex_lock(&ar->mutex); 1066 clear_bit(AR5523_HW_UP, &ar->flags); 1067 1068 ar5523_set_ledsteady(ar, UATH_LED_LINK, UATH_LED_OFF); 1069 ar5523_set_ledsteady(ar, UATH_LED_ACTIVITY, UATH_LED_OFF); 1070 1071 ar5523_cmd_write(ar, WDCMSG_TARGET_STOP, NULL, 0, 0); 1072 1073 del_timer_sync(&ar->tx_wd_timer); 1074 cancel_work_sync(&ar->tx_wd_work); 1075 cancel_work_sync(&ar->rx_refill_work); 1076 ar5523_cancel_rx_bufs(ar); 1077 mutex_unlock(&ar->mutex); 1078 } 1079 1080 static int ar5523_set_rts_threshold(struct ieee80211_hw *hw, u32 value) 1081 { 1082 struct ar5523 *ar = hw->priv; 1083 int ret; 1084 1085 ar5523_dbg(ar, "set_rts_threshold called\n"); 1086 mutex_lock(&ar->mutex); 1087 1088 ret = ar5523_config(ar, CFG_USER_RTS_THRESHOLD, value); 1089 1090 mutex_unlock(&ar->mutex); 1091 return ret; 1092 } 1093 1094 static void ar5523_flush(struct ieee80211_hw *hw, u32 queues, bool drop) 1095 { 1096 struct ar5523 *ar = hw->priv; 1097 1098 ar5523_dbg(ar, "flush called\n"); 1099 ar5523_flush_tx(ar); 1100 } 1101 1102 static int ar5523_add_interface(struct ieee80211_hw *hw, 1103 struct ieee80211_vif *vif) 1104 { 1105 struct ar5523 *ar = hw->priv; 1106 1107 ar5523_dbg(ar, "add interface called\n"); 1108 1109 if (ar->vif) { 1110 ar5523_dbg(ar, "invalid add_interface\n"); 1111 return -EOPNOTSUPP; 1112 } 1113 1114 switch (vif->type) { 1115 case NL80211_IFTYPE_STATION: 1116 ar->vif = vif; 1117 break; 1118 default: 1119 return -EOPNOTSUPP; 1120 } 1121 return 0; 1122 } 1123 1124 static void ar5523_remove_interface(struct ieee80211_hw *hw, 1125 struct ieee80211_vif *vif) 1126 { 1127 struct ar5523 *ar = hw->priv; 1128 1129 ar5523_dbg(ar, "remove interface called\n"); 1130 ar->vif = NULL; 1131 } 1132 1133 static int ar5523_hwconfig(struct ieee80211_hw *hw, u32 changed) 1134 { 1135 struct ar5523 *ar = hw->priv; 1136 1137 ar5523_dbg(ar, "config called\n"); 1138 mutex_lock(&ar->mutex); 1139 if (changed & IEEE80211_CONF_CHANGE_CHANNEL) { 1140 ar5523_dbg(ar, "Do channel switch\n"); 1141 ar5523_flush_tx(ar); 1142 ar5523_switch_chan(ar); 1143 } 1144 mutex_unlock(&ar->mutex); 1145 return 0; 1146 } 1147 1148 static int ar5523_get_wlan_mode(struct ar5523 *ar, 1149 struct ieee80211_bss_conf *bss_conf) 1150 { 1151 struct ieee80211_supported_band *band; 1152 int bit; 1153 struct ieee80211_sta *sta; 1154 u32 sta_rate_set; 1155 1156 band = ar->hw->wiphy->bands[ar->hw->conf.chandef.chan->band]; 1157 sta = ieee80211_find_sta(ar->vif, bss_conf->bssid); 1158 if (!sta) { 1159 ar5523_info(ar, "STA not found!\n"); 1160 return WLAN_MODE_11b; 1161 } 1162 sta_rate_set = sta->supp_rates[ar->hw->conf.chandef.chan->band]; 1163 1164 for (bit = 0; bit < band->n_bitrates; bit++) { 1165 if (sta_rate_set & 1) { 1166 int rate = band->bitrates[bit].bitrate; 1167 switch (rate) { 1168 case 60: 1169 case 90: 1170 case 120: 1171 case 180: 1172 case 240: 1173 case 360: 1174 case 480: 1175 case 540: 1176 return WLAN_MODE_11g; 1177 } 1178 } 1179 sta_rate_set >>= 1; 1180 } 1181 return WLAN_MODE_11b; 1182 } 1183 1184 static void ar5523_create_rateset(struct ar5523 *ar, 1185 struct ieee80211_bss_conf *bss_conf, 1186 struct ar5523_cmd_rateset *rs, 1187 bool basic) 1188 { 1189 struct ieee80211_supported_band *band; 1190 struct ieee80211_sta *sta; 1191 int bit, i = 0; 1192 u32 sta_rate_set, basic_rate_set; 1193 1194 sta = ieee80211_find_sta(ar->vif, bss_conf->bssid); 1195 basic_rate_set = bss_conf->basic_rates; 1196 if (!sta) { 1197 ar5523_info(ar, "STA not found. Cannot set rates\n"); 1198 sta_rate_set = bss_conf->basic_rates; 1199 } else 1200 sta_rate_set = sta->supp_rates[ar->hw->conf.chandef.chan->band]; 1201 1202 ar5523_dbg(ar, "sta rate_set = %08x\n", sta_rate_set); 1203 1204 band = ar->hw->wiphy->bands[ar->hw->conf.chandef.chan->band]; 1205 for (bit = 0; bit < band->n_bitrates; bit++) { 1206 BUG_ON(i >= AR5523_MAX_NRATES); 1207 ar5523_dbg(ar, "Considering rate %d : %d\n", 1208 band->bitrates[bit].hw_value, sta_rate_set & 1); 1209 if (sta_rate_set & 1) { 1210 rs->set[i] = band->bitrates[bit].hw_value; 1211 if (basic_rate_set & 1 && basic) 1212 rs->set[i] |= 0x80; 1213 i++; 1214 } 1215 sta_rate_set >>= 1; 1216 basic_rate_set >>= 1; 1217 } 1218 1219 rs->length = i; 1220 } 1221 1222 static int ar5523_set_basic_rates(struct ar5523 *ar, 1223 struct ieee80211_bss_conf *bss) 1224 { 1225 struct ar5523_cmd_rates rates; 1226 1227 memset(&rates, 0, sizeof(rates)); 1228 rates.connid = cpu_to_be32(2); /* XXX */ 1229 rates.size = cpu_to_be32(sizeof(struct ar5523_cmd_rateset)); 1230 ar5523_create_rateset(ar, bss, &rates.rateset, true); 1231 1232 return ar5523_cmd_write(ar, WDCMSG_SET_BASIC_RATE, &rates, 1233 sizeof(rates), 0); 1234 } 1235 1236 static int ar5523_create_connection(struct ar5523 *ar, 1237 struct ieee80211_vif *vif, 1238 struct ieee80211_bss_conf *bss) 1239 { 1240 struct ar5523_cmd_create_connection create; 1241 int wlan_mode; 1242 1243 memset(&create, 0, sizeof(create)); 1244 create.connid = cpu_to_be32(2); 1245 create.bssid = cpu_to_be32(0); 1246 /* XXX packed or not? */ 1247 create.size = cpu_to_be32(sizeof(struct ar5523_cmd_rateset)); 1248 1249 ar5523_create_rateset(ar, bss, &create.connattr.rateset, false); 1250 1251 wlan_mode = ar5523_get_wlan_mode(ar, bss); 1252 create.connattr.wlanmode = cpu_to_be32(wlan_mode); 1253 1254 return ar5523_cmd_write(ar, WDCMSG_CREATE_CONNECTION, &create, 1255 sizeof(create), 0); 1256 } 1257 1258 static int ar5523_write_associd(struct ar5523 *ar, 1259 struct ieee80211_bss_conf *bss) 1260 { 1261 struct ar5523_cmd_set_associd associd; 1262 1263 memset(&associd, 0, sizeof(associd)); 1264 associd.defaultrateix = cpu_to_be32(0); /* XXX */ 1265 associd.associd = cpu_to_be32(bss->aid); 1266 associd.timoffset = cpu_to_be32(0x3b); /* XXX */ 1267 memcpy(associd.bssid, bss->bssid, ETH_ALEN); 1268 return ar5523_cmd_write(ar, WDCMSG_WRITE_ASSOCID, &associd, 1269 sizeof(associd), 0); 1270 } 1271 1272 static void ar5523_bss_info_changed(struct ieee80211_hw *hw, 1273 struct ieee80211_vif *vif, 1274 struct ieee80211_bss_conf *bss, 1275 u32 changed) 1276 { 1277 struct ar5523 *ar = hw->priv; 1278 int error; 1279 1280 ar5523_dbg(ar, "bss_info_changed called\n"); 1281 mutex_lock(&ar->mutex); 1282 1283 if (!(changed & BSS_CHANGED_ASSOC)) 1284 goto out_unlock; 1285 1286 if (bss->assoc) { 1287 error = ar5523_create_connection(ar, vif, bss); 1288 if (error) { 1289 ar5523_err(ar, "could not create connection\n"); 1290 goto out_unlock; 1291 } 1292 1293 error = ar5523_set_basic_rates(ar, bss); 1294 if (error) { 1295 ar5523_err(ar, "could not set negotiated rate set\n"); 1296 goto out_unlock; 1297 } 1298 1299 error = ar5523_write_associd(ar, bss); 1300 if (error) { 1301 ar5523_err(ar, "could not set association\n"); 1302 goto out_unlock; 1303 } 1304 1305 /* turn link LED on */ 1306 ar5523_set_ledsteady(ar, UATH_LED_LINK, UATH_LED_ON); 1307 set_bit(AR5523_CONNECTED, &ar->flags); 1308 ieee80211_queue_delayed_work(hw, &ar->stat_work, HZ); 1309 1310 } else { 1311 cancel_delayed_work(&ar->stat_work); 1312 clear_bit(AR5523_CONNECTED, &ar->flags); 1313 ar5523_set_ledsteady(ar, UATH_LED_LINK, UATH_LED_OFF); 1314 } 1315 1316 out_unlock: 1317 mutex_unlock(&ar->mutex); 1318 1319 } 1320 1321 #define AR5523_SUPPORTED_FILTERS (FIF_PROMISC_IN_BSS | \ 1322 FIF_ALLMULTI | \ 1323 FIF_FCSFAIL | \ 1324 FIF_OTHER_BSS) 1325 1326 static void ar5523_configure_filter(struct ieee80211_hw *hw, 1327 unsigned int changed_flags, 1328 unsigned int *total_flags, 1329 u64 multicast) 1330 { 1331 struct ar5523 *ar = hw->priv; 1332 u32 filter = 0; 1333 1334 ar5523_dbg(ar, "configure_filter called\n"); 1335 mutex_lock(&ar->mutex); 1336 ar5523_flush_tx(ar); 1337 1338 *total_flags &= AR5523_SUPPORTED_FILTERS; 1339 1340 /* The filters seems strange. UATH_FILTER_RX_BCAST and 1341 * UATH_FILTER_RX_MCAST does not result in those frames being RXed. 1342 * The only way I have found to get [mb]cast frames seems to be 1343 * to set UATH_FILTER_RX_PROM. */ 1344 filter |= UATH_FILTER_RX_UCAST | UATH_FILTER_RX_MCAST | 1345 UATH_FILTER_RX_BCAST | UATH_FILTER_RX_BEACON | 1346 UATH_FILTER_RX_PROM; 1347 1348 ar5523_set_rxfilter(ar, 0, UATH_FILTER_OP_INIT); 1349 ar5523_set_rxfilter(ar, filter, UATH_FILTER_OP_SET); 1350 1351 mutex_unlock(&ar->mutex); 1352 } 1353 1354 static const struct ieee80211_ops ar5523_ops = { 1355 .start = ar5523_start, 1356 .stop = ar5523_stop, 1357 .tx = ar5523_tx, 1358 .set_rts_threshold = ar5523_set_rts_threshold, 1359 .add_interface = ar5523_add_interface, 1360 .remove_interface = ar5523_remove_interface, 1361 .config = ar5523_hwconfig, 1362 .bss_info_changed = ar5523_bss_info_changed, 1363 .configure_filter = ar5523_configure_filter, 1364 .flush = ar5523_flush, 1365 }; 1366 1367 static int ar5523_host_available(struct ar5523 *ar) 1368 { 1369 struct ar5523_cmd_host_available setup; 1370 1371 /* inform target the host is available */ 1372 setup.sw_ver_major = cpu_to_be32(ATH_SW_VER_MAJOR); 1373 setup.sw_ver_minor = cpu_to_be32(ATH_SW_VER_MINOR); 1374 setup.sw_ver_patch = cpu_to_be32(ATH_SW_VER_PATCH); 1375 setup.sw_ver_build = cpu_to_be32(ATH_SW_VER_BUILD); 1376 return ar5523_cmd_read(ar, WDCMSG_HOST_AVAILABLE, 1377 &setup, sizeof(setup), NULL, 0, 0); 1378 } 1379 1380 static int ar5523_get_devstatus(struct ar5523 *ar) 1381 { 1382 u8 macaddr[ETH_ALEN]; 1383 int error; 1384 1385 /* retrieve MAC address */ 1386 error = ar5523_get_status(ar, ST_MAC_ADDR, macaddr, ETH_ALEN); 1387 if (error) { 1388 ar5523_err(ar, "could not read MAC address\n"); 1389 return error; 1390 } 1391 1392 SET_IEEE80211_PERM_ADDR(ar->hw, macaddr); 1393 1394 error = ar5523_get_status(ar, ST_SERIAL_NUMBER, 1395 &ar->serial[0], sizeof(ar->serial)); 1396 if (error) { 1397 ar5523_err(ar, "could not read device serial number\n"); 1398 return error; 1399 } 1400 return 0; 1401 } 1402 1403 #define AR5523_SANE_RXBUFSZ 2000 1404 1405 static int ar5523_get_max_rxsz(struct ar5523 *ar) 1406 { 1407 int error; 1408 __be32 rxsize; 1409 1410 /* Get max rx size */ 1411 error = ar5523_get_status(ar, ST_WDC_TRANSPORT_CHUNK_SIZE, &rxsize, 1412 sizeof(rxsize)); 1413 if (error != 0) { 1414 ar5523_err(ar, "could not read max RX size\n"); 1415 return error; 1416 } 1417 1418 ar->rxbufsz = be32_to_cpu(rxsize); 1419 1420 if (!ar->rxbufsz || ar->rxbufsz > AR5523_SANE_RXBUFSZ) { 1421 ar5523_err(ar, "Bad rxbufsz from device. Using %d instead\n", 1422 AR5523_SANE_RXBUFSZ); 1423 ar->rxbufsz = AR5523_SANE_RXBUFSZ; 1424 } 1425 1426 ar5523_dbg(ar, "Max RX buf size: %d\n", ar->rxbufsz); 1427 return 0; 1428 } 1429 1430 /* 1431 * This is copied from rtl818x, but we should probably move this 1432 * to common code as in OpenBSD. 1433 */ 1434 static const struct ieee80211_rate ar5523_rates[] = { 1435 { .bitrate = 10, .hw_value = 2, }, 1436 { .bitrate = 20, .hw_value = 4 }, 1437 { .bitrate = 55, .hw_value = 11, }, 1438 { .bitrate = 110, .hw_value = 22, }, 1439 { .bitrate = 60, .hw_value = 12, }, 1440 { .bitrate = 90, .hw_value = 18, }, 1441 { .bitrate = 120, .hw_value = 24, }, 1442 { .bitrate = 180, .hw_value = 36, }, 1443 { .bitrate = 240, .hw_value = 48, }, 1444 { .bitrate = 360, .hw_value = 72, }, 1445 { .bitrate = 480, .hw_value = 96, }, 1446 { .bitrate = 540, .hw_value = 108, }, 1447 }; 1448 1449 static const struct ieee80211_channel ar5523_channels[] = { 1450 { .center_freq = 2412 }, 1451 { .center_freq = 2417 }, 1452 { .center_freq = 2422 }, 1453 { .center_freq = 2427 }, 1454 { .center_freq = 2432 }, 1455 { .center_freq = 2437 }, 1456 { .center_freq = 2442 }, 1457 { .center_freq = 2447 }, 1458 { .center_freq = 2452 }, 1459 { .center_freq = 2457 }, 1460 { .center_freq = 2462 }, 1461 { .center_freq = 2467 }, 1462 { .center_freq = 2472 }, 1463 { .center_freq = 2484 }, 1464 }; 1465 1466 static int ar5523_init_modes(struct ar5523 *ar) 1467 { 1468 BUILD_BUG_ON(sizeof(ar->channels) != sizeof(ar5523_channels)); 1469 BUILD_BUG_ON(sizeof(ar->rates) != sizeof(ar5523_rates)); 1470 1471 memcpy(ar->channels, ar5523_channels, sizeof(ar5523_channels)); 1472 memcpy(ar->rates, ar5523_rates, sizeof(ar5523_rates)); 1473 1474 ar->band.band = IEEE80211_BAND_2GHZ; 1475 ar->band.channels = ar->channels; 1476 ar->band.n_channels = ARRAY_SIZE(ar5523_channels); 1477 ar->band.bitrates = ar->rates; 1478 ar->band.n_bitrates = ARRAY_SIZE(ar5523_rates); 1479 ar->hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &ar->band; 1480 return 0; 1481 } 1482 1483 /* 1484 * Load the MIPS R4000 microcode into the device. Once the image is loaded, 1485 * the device will detach itself from the bus and reattach later with a new 1486 * product Id (a la ezusb). 1487 */ 1488 static int ar5523_load_firmware(struct usb_device *dev) 1489 { 1490 struct ar5523_fwblock *txblock, *rxblock; 1491 const struct firmware *fw; 1492 void *fwbuf; 1493 int len, offset; 1494 int foolen; /* XXX(hch): handle short transfers */ 1495 int error = -ENXIO; 1496 1497 if (request_firmware(&fw, AR5523_FIRMWARE_FILE, &dev->dev)) { 1498 dev_err(&dev->dev, "no firmware found: %s\n", 1499 AR5523_FIRMWARE_FILE); 1500 return -ENOENT; 1501 } 1502 1503 txblock = kmalloc(sizeof(*txblock), GFP_KERNEL); 1504 if (!txblock) 1505 goto out; 1506 1507 rxblock = kmalloc(sizeof(*rxblock), GFP_KERNEL); 1508 if (!rxblock) 1509 goto out_free_txblock; 1510 1511 fwbuf = kmalloc(AR5523_MAX_FWBLOCK_SIZE, GFP_KERNEL); 1512 if (!fwbuf) 1513 goto out_free_rxblock; 1514 1515 memset(txblock, 0, sizeof(struct ar5523_fwblock)); 1516 txblock->flags = cpu_to_be32(AR5523_WRITE_BLOCK); 1517 txblock->total = cpu_to_be32(fw->size); 1518 1519 offset = 0; 1520 len = fw->size; 1521 while (len > 0) { 1522 int mlen = min(len, AR5523_MAX_FWBLOCK_SIZE); 1523 1524 txblock->remain = cpu_to_be32(len - mlen); 1525 txblock->len = cpu_to_be32(mlen); 1526 1527 /* send firmware block meta-data */ 1528 error = usb_bulk_msg(dev, ar5523_cmd_tx_pipe(dev), 1529 txblock, sizeof(*txblock), &foolen, 1530 AR5523_CMD_TIMEOUT); 1531 if (error) { 1532 dev_err(&dev->dev, 1533 "could not send firmware block info\n"); 1534 goto out_free_fwbuf; 1535 } 1536 1537 /* send firmware block data */ 1538 memcpy(fwbuf, fw->data + offset, mlen); 1539 error = usb_bulk_msg(dev, ar5523_data_tx_pipe(dev), 1540 fwbuf, mlen, &foolen, 1541 AR5523_DATA_TIMEOUT); 1542 if (error) { 1543 dev_err(&dev->dev, 1544 "could not send firmware block data\n"); 1545 goto out_free_fwbuf; 1546 } 1547 1548 /* wait for ack from firmware */ 1549 error = usb_bulk_msg(dev, ar5523_cmd_rx_pipe(dev), 1550 rxblock, sizeof(*rxblock), &foolen, 1551 AR5523_CMD_TIMEOUT); 1552 if (error) { 1553 dev_err(&dev->dev, 1554 "could not read firmware answer\n"); 1555 goto out_free_fwbuf; 1556 } 1557 1558 len -= mlen; 1559 offset += mlen; 1560 } 1561 1562 /* 1563 * Set the error to -ENXIO to make sure we continue probing for 1564 * a driver. 1565 */ 1566 error = -ENXIO; 1567 1568 out_free_fwbuf: 1569 kfree(fwbuf); 1570 out_free_rxblock: 1571 kfree(rxblock); 1572 out_free_txblock: 1573 kfree(txblock); 1574 out: 1575 release_firmware(fw); 1576 return error; 1577 } 1578 1579 static int ar5523_probe(struct usb_interface *intf, 1580 const struct usb_device_id *id) 1581 { 1582 struct usb_device *dev = interface_to_usbdev(intf); 1583 struct ieee80211_hw *hw; 1584 struct ar5523 *ar; 1585 int error = -ENOMEM; 1586 1587 /* 1588 * Load firmware if the device requires it. This will return 1589 * -ENXIO on success and we'll get called back afer the usb 1590 * id changes to indicate that the firmware is present. 1591 */ 1592 if (id->driver_info & AR5523_FLAG_PRE_FIRMWARE) 1593 return ar5523_load_firmware(dev); 1594 1595 1596 hw = ieee80211_alloc_hw(sizeof(*ar), &ar5523_ops); 1597 if (!hw) 1598 goto out; 1599 SET_IEEE80211_DEV(hw, &intf->dev); 1600 1601 ar = hw->priv; 1602 ar->hw = hw; 1603 ar->dev = dev; 1604 mutex_init(&ar->mutex); 1605 1606 INIT_DELAYED_WORK(&ar->stat_work, ar5523_stat_work); 1607 init_timer(&ar->tx_wd_timer); 1608 setup_timer(&ar->tx_wd_timer, ar5523_tx_wd_timer, (unsigned long) ar); 1609 INIT_WORK(&ar->tx_wd_work, ar5523_tx_wd_work); 1610 INIT_WORK(&ar->tx_work, ar5523_tx_work); 1611 INIT_LIST_HEAD(&ar->tx_queue_pending); 1612 INIT_LIST_HEAD(&ar->tx_queue_submitted); 1613 spin_lock_init(&ar->tx_data_list_lock); 1614 atomic_set(&ar->tx_nr_total, 0); 1615 atomic_set(&ar->tx_nr_pending, 0); 1616 init_waitqueue_head(&ar->tx_flush_waitq); 1617 1618 atomic_set(&ar->rx_data_free_cnt, 0); 1619 INIT_WORK(&ar->rx_refill_work, ar5523_rx_refill_work); 1620 INIT_LIST_HEAD(&ar->rx_data_free); 1621 INIT_LIST_HEAD(&ar->rx_data_used); 1622 spin_lock_init(&ar->rx_data_list_lock); 1623 1624 ar->wq = create_singlethread_workqueue("ar5523"); 1625 if (!ar->wq) { 1626 ar5523_err(ar, "Could not create wq\n"); 1627 goto out_free_ar; 1628 } 1629 1630 error = ar5523_alloc_rx_bufs(ar); 1631 if (error) { 1632 ar5523_err(ar, "Could not allocate rx buffers\n"); 1633 goto out_free_wq; 1634 } 1635 1636 error = ar5523_alloc_rx_cmd(ar); 1637 if (error) { 1638 ar5523_err(ar, "Could not allocate rx command buffers\n"); 1639 goto out_free_rx_bufs; 1640 } 1641 1642 error = ar5523_alloc_tx_cmd(ar); 1643 if (error) { 1644 ar5523_err(ar, "Could not allocate tx command buffers\n"); 1645 goto out_free_rx_cmd; 1646 } 1647 1648 error = ar5523_submit_rx_cmd(ar); 1649 if (error) { 1650 ar5523_err(ar, "Failed to submit rx cmd\n"); 1651 goto out_free_tx_cmd; 1652 } 1653 1654 /* 1655 * We're now ready to send/receive firmware commands. 1656 */ 1657 error = ar5523_host_available(ar); 1658 if (error) { 1659 ar5523_err(ar, "could not initialize adapter\n"); 1660 goto out_cancel_rx_cmd; 1661 } 1662 1663 error = ar5523_get_max_rxsz(ar); 1664 if (error) { 1665 ar5523_err(ar, "could not get caps from adapter\n"); 1666 goto out_cancel_rx_cmd; 1667 } 1668 1669 error = ar5523_get_devcap(ar); 1670 if (error) { 1671 ar5523_err(ar, "could not get caps from adapter\n"); 1672 goto out_cancel_rx_cmd; 1673 } 1674 1675 error = ar5523_get_devstatus(ar); 1676 if (error != 0) { 1677 ar5523_err(ar, "could not get device status\n"); 1678 goto out_cancel_rx_cmd; 1679 } 1680 1681 ar5523_info(ar, "MAC/BBP AR5523, RF AR%c112\n", 1682 (id->driver_info & AR5523_FLAG_ABG) ? '5' : '2'); 1683 1684 ar->vif = NULL; 1685 hw->flags = IEEE80211_HW_RX_INCLUDES_FCS | 1686 IEEE80211_HW_SIGNAL_DBM | 1687 IEEE80211_HW_HAS_RATE_CONTROL; 1688 hw->extra_tx_headroom = sizeof(struct ar5523_tx_desc) + 1689 sizeof(struct ar5523_chunk); 1690 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION); 1691 hw->queues = 1; 1692 1693 error = ar5523_init_modes(ar); 1694 if (error) 1695 goto out_cancel_rx_cmd; 1696 1697 usb_set_intfdata(intf, hw); 1698 1699 error = ieee80211_register_hw(hw); 1700 if (error) { 1701 ar5523_err(ar, "could not register device\n"); 1702 goto out_cancel_rx_cmd; 1703 } 1704 1705 ar5523_info(ar, "Found and initialized AR5523 device\n"); 1706 return 0; 1707 1708 out_cancel_rx_cmd: 1709 ar5523_cancel_rx_cmd(ar); 1710 out_free_tx_cmd: 1711 ar5523_free_tx_cmd(ar); 1712 out_free_rx_cmd: 1713 ar5523_free_rx_cmd(ar); 1714 out_free_rx_bufs: 1715 ar5523_free_rx_bufs(ar); 1716 out_free_wq: 1717 destroy_workqueue(ar->wq); 1718 out_free_ar: 1719 ieee80211_free_hw(hw); 1720 out: 1721 return error; 1722 } 1723 1724 static void ar5523_disconnect(struct usb_interface *intf) 1725 { 1726 struct ieee80211_hw *hw = usb_get_intfdata(intf); 1727 struct ar5523 *ar = hw->priv; 1728 1729 ar5523_dbg(ar, "detaching\n"); 1730 set_bit(AR5523_USB_DISCONNECTED, &ar->flags); 1731 1732 ieee80211_unregister_hw(hw); 1733 1734 ar5523_cancel_rx_cmd(ar); 1735 ar5523_free_tx_cmd(ar); 1736 ar5523_free_rx_cmd(ar); 1737 ar5523_free_rx_bufs(ar); 1738 1739 destroy_workqueue(ar->wq); 1740 1741 ieee80211_free_hw(hw); 1742 usb_set_intfdata(intf, NULL); 1743 } 1744 1745 #define AR5523_DEVICE_UG(vendor, device) \ 1746 { USB_DEVICE((vendor), (device)) }, \ 1747 { USB_DEVICE((vendor), (device) + 1), \ 1748 .driver_info = AR5523_FLAG_PRE_FIRMWARE } 1749 #define AR5523_DEVICE_UX(vendor, device) \ 1750 { USB_DEVICE((vendor), (device)), \ 1751 .driver_info = AR5523_FLAG_ABG }, \ 1752 { USB_DEVICE((vendor), (device) + 1), \ 1753 .driver_info = AR5523_FLAG_ABG|AR5523_FLAG_PRE_FIRMWARE } 1754 1755 static struct usb_device_id ar5523_id_table[] = { 1756 AR5523_DEVICE_UG(0x168c, 0x0001), /* Atheros / AR5523 */ 1757 AR5523_DEVICE_UG(0x0cf3, 0x0001), /* Atheros2 / AR5523_1 */ 1758 AR5523_DEVICE_UG(0x0cf3, 0x0003), /* Atheros2 / AR5523_2 */ 1759 AR5523_DEVICE_UX(0x0cf3, 0x0005), /* Atheros2 / AR5523_3 */ 1760 AR5523_DEVICE_UG(0x0d8e, 0x7801), /* Conceptronic / AR5523_1 */ 1761 AR5523_DEVICE_UX(0x0d8e, 0x7811), /* Conceptronic / AR5523_2 */ 1762 AR5523_DEVICE_UX(0x2001, 0x3a00), /* Dlink / DWLAG132 */ 1763 AR5523_DEVICE_UG(0x2001, 0x3a02), /* Dlink / DWLG132 */ 1764 AR5523_DEVICE_UX(0x2001, 0x3a04), /* Dlink / DWLAG122 */ 1765 AR5523_DEVICE_UG(0x07d1, 0x3a07), /* D-Link / WUA-2340 rev A1 */ 1766 AR5523_DEVICE_UG(0x1690, 0x0712), /* Gigaset / AR5523 */ 1767 AR5523_DEVICE_UG(0x1690, 0x0710), /* Gigaset / SMCWUSBTG */ 1768 AR5523_DEVICE_UG(0x129b, 0x160c), /* Gigaset / USB stick 108 1769 (CyberTAN Technology) */ 1770 AR5523_DEVICE_UG(0x16ab, 0x7801), /* Globalsun / AR5523_1 */ 1771 AR5523_DEVICE_UX(0x16ab, 0x7811), /* Globalsun / AR5523_2 */ 1772 AR5523_DEVICE_UG(0x0d8e, 0x7802), /* Globalsun / AR5523_3 */ 1773 AR5523_DEVICE_UX(0x0846, 0x4300), /* Netgear / WG111U */ 1774 AR5523_DEVICE_UG(0x0846, 0x4250), /* Netgear / WG111T */ 1775 AR5523_DEVICE_UG(0x0846, 0x5f00), /* Netgear / WPN111 */ 1776 AR5523_DEVICE_UG(0x157e, 0x3006), /* Umedia / AR5523_1 */ 1777 AR5523_DEVICE_UX(0x157e, 0x3205), /* Umedia / AR5523_2 */ 1778 AR5523_DEVICE_UG(0x157e, 0x3006), /* Umedia / TEW444UBEU */ 1779 AR5523_DEVICE_UG(0x1435, 0x0826), /* Wistronneweb / AR5523_1 */ 1780 AR5523_DEVICE_UX(0x1435, 0x0828), /* Wistronneweb / AR5523_2 */ 1781 AR5523_DEVICE_UG(0x0cde, 0x0012), /* Zcom / AR5523 */ 1782 AR5523_DEVICE_UG(0x1385, 0x4250), /* Netgear3 / WG111T (2) */ 1783 AR5523_DEVICE_UG(0x1385, 0x5f00), /* Netgear / WPN111 */ 1784 AR5523_DEVICE_UG(0x1385, 0x5f02), /* Netgear / WPN111 */ 1785 { } 1786 }; 1787 MODULE_DEVICE_TABLE(usb, ar5523_id_table); 1788 1789 static struct usb_driver ar5523_driver = { 1790 .name = "ar5523", 1791 .id_table = ar5523_id_table, 1792 .probe = ar5523_probe, 1793 .disconnect = ar5523_disconnect, 1794 }; 1795 1796 module_usb_driver(ar5523_driver); 1797 1798 MODULE_LICENSE("Dual BSD/GPL"); 1799 MODULE_FIRMWARE(AR5523_FIRMWARE_FILE); 1800