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/kernel.h> 29#include <linux/module.h> 30#include <linux/list.h> 31#include <linux/completion.h> 32#include <linux/firmware.h> 33#include <linux/skbuff.h> 34#include <linux/usb.h> 35#include <net/mac80211.h> 36 37#include "ar5523.h" 38#include "ar5523_hw.h" 39 40/* 41 * Various supported device vendors/products. 42 * UB51: AR5005UG 802.11b/g, UB52: AR5005UX 802.11a/b/g 43 */ 44 45static int ar5523_submit_rx_cmd(struct ar5523 *ar); 46static void ar5523_data_tx_pkt_put(struct ar5523 *ar); 47 48static void ar5523_read_reply(struct ar5523 *ar, struct ar5523_cmd_hdr *hdr, 49 struct ar5523_tx_cmd *cmd) 50{ 51 int dlen, olen; 52 __be32 *rp; 53 54 dlen = be32_to_cpu(hdr->len) - sizeof(*hdr); 55 56 if (dlen < 0) { 57 WARN_ON(1); 58 goto out; 59 } 60 61 ar5523_dbg(ar, "Code = %d len = %d\n", be32_to_cpu(hdr->code) & 0xff, 62 dlen); 63 64 rp = (__be32 *)(hdr + 1); 65 if (dlen >= sizeof(u32)) { 66 olen = be32_to_cpu(rp[0]); 67 dlen -= sizeof(u32); 68 if (olen == 0) { 69 /* convention is 0 =>'s one word */ 70 olen = sizeof(u32); 71 } 72 } else 73 olen = 0; 74 75 if (cmd->odata) { 76 if (cmd->olen < olen) { 77 ar5523_err(ar, "olen too small %d < %d\n", 78 cmd->olen, olen); 79 cmd->olen = 0; 80 cmd->res = -EOVERFLOW; 81 } else { 82 cmd->olen = olen; 83 memcpy(cmd->odata, &rp[1], olen); 84 cmd->res = 0; 85 } 86 } 87 88out: 89 complete(&cmd->done); 90} 91 92static void ar5523_cmd_rx_cb(struct urb *urb) 93{ 94 struct ar5523 *ar = urb->context; 95 struct ar5523_tx_cmd *cmd = &ar->tx_cmd; 96 struct ar5523_cmd_hdr *hdr = ar->rx_cmd_buf; 97 int dlen; 98 u32 code, hdrlen; 99 100 if (urb->status) { 101 if (urb->status != -ESHUTDOWN) 102 ar5523_err(ar, "RX USB error %d.\n", urb->status); 103 goto skip; 104 } 105 106 if (urb->actual_length < sizeof(struct ar5523_cmd_hdr)) { 107 ar5523_err(ar, "RX USB to short.\n"); 108 goto skip; 109 } 110 111 ar5523_dbg(ar, "%s code %02x priv %d\n", __func__, 112 be32_to_cpu(hdr->code) & 0xff, hdr->priv); 113 114 code = be32_to_cpu(hdr->code); 115 hdrlen = be32_to_cpu(hdr->len); 116 117 switch (code & 0xff) { 118 default: 119 /* reply to a read command */ 120 if (hdr->priv != AR5523_CMD_ID) { 121 ar5523_err(ar, "Unexpected command id: %02x\n", 122 code & 0xff); 123 goto skip; 124 } 125 ar5523_read_reply(ar, hdr, cmd); 126 break; 127 128 case WDCMSG_DEVICE_AVAIL: 129 ar5523_dbg(ar, "WDCMSG_DEVICE_AVAIL\n"); 130 cmd->res = 0; 131 cmd->olen = 0; 132 complete(&cmd->done); 133 break; 134 135 case WDCMSG_SEND_COMPLETE: 136 ar5523_dbg(ar, "WDCMSG_SEND_COMPLETE: %d pending\n", 137 atomic_read(&ar->tx_nr_pending)); 138 if (!test_bit(AR5523_HW_UP, &ar->flags)) 139 ar5523_dbg(ar, "Unexpected WDCMSG_SEND_COMPLETE\n"); 140 else { 141 mod_timer(&ar->tx_wd_timer, 142 jiffies + AR5523_TX_WD_TIMEOUT); 143 ar5523_data_tx_pkt_put(ar); 144 145 } 146 break; 147 148 case WDCMSG_TARGET_START: 149 /* This command returns a bogus id so it needs special 150 handling */ 151 dlen = hdrlen - sizeof(*hdr); 152 if (dlen != (int)sizeof(u32)) { 153 ar5523_err(ar, "Invalid reply to WDCMSG_TARGET_START"); 154 return; 155 } 156 if (!cmd->odata) { 157 ar5523_err(ar, "Unexpected WDCMSG_TARGET_START reply"); 158 return; 159 } 160 memcpy(cmd->odata, hdr + 1, sizeof(u32)); 161 cmd->olen = sizeof(u32); 162 cmd->res = 0; 163 complete(&cmd->done); 164 break; 165 166 case WDCMSG_STATS_UPDATE: 167 ar5523_dbg(ar, "WDCMSG_STATS_UPDATE\n"); 168 break; 169 } 170 171skip: 172 ar5523_submit_rx_cmd(ar); 173} 174 175static int ar5523_alloc_rx_cmd(struct ar5523 *ar) 176{ 177 ar->rx_cmd_urb = usb_alloc_urb(0, GFP_KERNEL); 178 if (!ar->rx_cmd_urb) 179 return -ENOMEM; 180 181 ar->rx_cmd_buf = usb_alloc_coherent(ar->dev, AR5523_MAX_RXCMDSZ, 182 GFP_KERNEL, 183 &ar->rx_cmd_urb->transfer_dma); 184 if (!ar->rx_cmd_buf) { 185 usb_free_urb(ar->rx_cmd_urb); 186 return -ENOMEM; 187 } 188 return 0; 189} 190 191static void ar5523_cancel_rx_cmd(struct ar5523 *ar) 192{ 193 usb_kill_urb(ar->rx_cmd_urb); 194} 195 196static void ar5523_free_rx_cmd(struct ar5523 *ar) 197{ 198 usb_free_coherent(ar->dev, AR5523_MAX_RXCMDSZ, 199 ar->rx_cmd_buf, ar->rx_cmd_urb->transfer_dma); 200 usb_free_urb(ar->rx_cmd_urb); 201} 202 203static int ar5523_submit_rx_cmd(struct ar5523 *ar) 204{ 205 int error; 206 207 usb_fill_bulk_urb(ar->rx_cmd_urb, ar->dev, 208 ar5523_cmd_rx_pipe(ar->dev), ar->rx_cmd_buf, 209 AR5523_MAX_RXCMDSZ, ar5523_cmd_rx_cb, ar); 210 ar->rx_cmd_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; 211 212 error = usb_submit_urb(ar->rx_cmd_urb, GFP_ATOMIC); 213 if (error) { 214 if (error != -ENODEV) 215 ar5523_err(ar, "error %d when submitting rx urb\n", 216 error); 217 return error; 218 } 219 return 0; 220} 221 222/* 223 * Command submitted cb 224 */ 225static void ar5523_cmd_tx_cb(struct urb *urb) 226{ 227 struct ar5523_tx_cmd *cmd = urb->context; 228 struct ar5523 *ar = cmd->ar; 229 230 if (urb->status) { 231 ar5523_err(ar, "Failed to TX command. Status = %d\n", 232 urb->status); 233 cmd->res = urb->status; 234 complete(&cmd->done); 235 return; 236 } 237 238 if (!(cmd->flags & AR5523_CMD_FLAG_READ)) { 239 cmd->res = 0; 240 complete(&cmd->done); 241 } 242} 243 244static void ar5523_cancel_tx_cmd(struct ar5523 *ar) 245{ 246 usb_kill_urb(ar->tx_cmd.urb_tx); 247} 248 249static int ar5523_cmd(struct ar5523 *ar, u32 code, const void *idata, 250 int ilen, void *odata, int olen, int flags) 251{ 252 struct ar5523_cmd_hdr *hdr; 253 struct ar5523_tx_cmd *cmd = &ar->tx_cmd; 254 int xferlen, error; 255 256 /* always bulk-out a multiple of 4 bytes */ 257 xferlen = (sizeof(struct ar5523_cmd_hdr) + ilen + 3) & ~3; 258 259 hdr = (struct ar5523_cmd_hdr *)cmd->buf_tx; 260 memset(hdr, 0, sizeof(struct ar5523_cmd_hdr)); 261 hdr->len = cpu_to_be32(xferlen); 262 hdr->code = cpu_to_be32(code); 263 hdr->priv = AR5523_CMD_ID; 264 265 if (flags & AR5523_CMD_FLAG_MAGIC) 266 hdr->magic = cpu_to_be32(1 << 24); 267 if (ilen) 268 memcpy(hdr + 1, idata, ilen); 269 270 cmd->odata = odata; 271 cmd->olen = olen; 272 cmd->flags = flags; 273 274 ar5523_dbg(ar, "do cmd %02x\n", code); 275 276 usb_fill_bulk_urb(cmd->urb_tx, ar->dev, ar5523_cmd_tx_pipe(ar->dev), 277 cmd->buf_tx, xferlen, ar5523_cmd_tx_cb, cmd); 278 cmd->urb_tx->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; 279 280 error = usb_submit_urb(cmd->urb_tx, GFP_KERNEL); 281 if (error) { 282 ar5523_err(ar, "could not send command 0x%x, error=%d\n", 283 code, error); 284 return error; 285 } 286 287 if (!wait_for_completion_timeout(&cmd->done, 2 * HZ)) { 288 ar5523_cancel_tx_cmd(ar); 289 cmd->odata = NULL; 290 ar5523_err(ar, "timeout waiting for command %02x reply\n", 291 code); 292 cmd->res = -ETIMEDOUT; 293 } 294 return cmd->res; 295} 296 297static int ar5523_cmd_write(struct ar5523 *ar, u32 code, const void *data, 298 int len, int flags) 299{ 300 flags &= ~AR5523_CMD_FLAG_READ; 301 return ar5523_cmd(ar, code, data, len, NULL, 0, flags); 302} 303 304static int ar5523_cmd_read(struct ar5523 *ar, u32 code, const void *idata, 305 int ilen, void *odata, int olen, int flags) 306{ 307 flags |= AR5523_CMD_FLAG_READ; 308 return ar5523_cmd(ar, code, idata, ilen, odata, olen, flags); 309} 310 311static int ar5523_config(struct ar5523 *ar, u32 reg, u32 val) 312{ 313 struct ar5523_write_mac write; 314 int error; 315 316 write.reg = cpu_to_be32(reg); 317 write.len = cpu_to_be32(0); /* 0 = single write */ 318 *(__be32 *)write.data = cpu_to_be32(val); 319 320 error = ar5523_cmd_write(ar, WDCMSG_TARGET_SET_CONFIG, &write, 321 3 * sizeof(u32), 0); 322 if (error != 0) 323 ar5523_err(ar, "could not write register 0x%02x\n", reg); 324 return error; 325} 326 327static int ar5523_config_multi(struct ar5523 *ar, u32 reg, const void *data, 328 int len) 329{ 330 struct ar5523_write_mac write; 331 int error; 332 333 write.reg = cpu_to_be32(reg); 334 write.len = cpu_to_be32(len); 335 memcpy(write.data, data, len); 336 337 /* properly handle the case where len is zero (reset) */ 338 error = ar5523_cmd_write(ar, WDCMSG_TARGET_SET_CONFIG, &write, 339 (len == 0) ? sizeof(u32) : 2 * sizeof(u32) + len, 0); 340 if (error != 0) 341 ar5523_err(ar, "could not write %d bytes to register 0x%02x\n", 342 len, reg); 343 return error; 344} 345 346static int ar5523_get_status(struct ar5523 *ar, u32 which, void *odata, 347 int olen) 348{ 349 int error; 350 __be32 which_be; 351 352 which_be = cpu_to_be32(which); 353 error = ar5523_cmd_read(ar, WDCMSG_TARGET_GET_STATUS, 354 &which_be, sizeof(which_be), odata, olen, AR5523_CMD_FLAG_MAGIC); 355 if (error != 0) 356 ar5523_err(ar, "could not read EEPROM offset 0x%02x\n", which); 357 return error; 358} 359 360static int ar5523_get_capability(struct ar5523 *ar, u32 cap, u32 *val) 361{ 362 int error; 363 __be32 cap_be, val_be; 364 365 cap_be = cpu_to_be32(cap); 366 error = ar5523_cmd_read(ar, WDCMSG_TARGET_GET_CAPABILITY, &cap_be, 367 sizeof(cap_be), &val_be, sizeof(__be32), 368 AR5523_CMD_FLAG_MAGIC); 369 if (error != 0) { 370 ar5523_err(ar, "could not read capability %u\n", cap); 371 return error; 372 } 373 *val = be32_to_cpu(val_be); 374 return error; 375} 376 377static int ar5523_get_devcap(struct ar5523 *ar) 378{ 379#define GETCAP(x) do { \ 380 error = ar5523_get_capability(ar, x, &cap); \ 381 if (error != 0) \ 382 return error; \ 383 ar5523_info(ar, "Cap: " \ 384 "%s=0x%08x\n", #x, cap); \ 385} while (0) 386 int error; 387 u32 cap; 388 389 /* collect device capabilities */ 390 GETCAP(CAP_TARGET_VERSION); 391 GETCAP(CAP_TARGET_REVISION); 392 GETCAP(CAP_MAC_VERSION); 393 GETCAP(CAP_MAC_REVISION); 394 GETCAP(CAP_PHY_REVISION); 395 GETCAP(CAP_ANALOG_5GHz_REVISION); 396 GETCAP(CAP_ANALOG_2GHz_REVISION); 397 398 GETCAP(CAP_REG_DOMAIN); 399 GETCAP(CAP_REG_CAP_BITS); 400 GETCAP(CAP_WIRELESS_MODES); 401 GETCAP(CAP_CHAN_SPREAD_SUPPORT); 402 GETCAP(CAP_COMPRESS_SUPPORT); 403 GETCAP(CAP_BURST_SUPPORT); 404 GETCAP(CAP_FAST_FRAMES_SUPPORT); 405 GETCAP(CAP_CHAP_TUNING_SUPPORT); 406 GETCAP(CAP_TURBOG_SUPPORT); 407 GETCAP(CAP_TURBO_PRIME_SUPPORT); 408 GETCAP(CAP_DEVICE_TYPE); 409 GETCAP(CAP_WME_SUPPORT); 410 GETCAP(CAP_TOTAL_QUEUES); 411 GETCAP(CAP_CONNECTION_ID_MAX); 412 413 GETCAP(CAP_LOW_5GHZ_CHAN); 414 GETCAP(CAP_HIGH_5GHZ_CHAN); 415 GETCAP(CAP_LOW_2GHZ_CHAN); 416 GETCAP(CAP_HIGH_2GHZ_CHAN); 417 GETCAP(CAP_TWICE_ANTENNAGAIN_5G); 418 GETCAP(CAP_TWICE_ANTENNAGAIN_2G); 419 420 GETCAP(CAP_CIPHER_AES_CCM); 421 GETCAP(CAP_CIPHER_TKIP); 422 GETCAP(CAP_MIC_TKIP); 423 return 0; 424} 425 426static int ar5523_set_ledsteady(struct ar5523 *ar, int lednum, int ledmode) 427{ 428 struct ar5523_cmd_ledsteady led; 429 430 led.lednum = cpu_to_be32(lednum); 431 led.ledmode = cpu_to_be32(ledmode); 432 433 ar5523_dbg(ar, "set %s led %s (steady)\n", 434 (lednum == UATH_LED_LINK) ? "link" : "activity", 435 ledmode ? "on" : "off"); 436 return ar5523_cmd_write(ar, WDCMSG_SET_LED_STEADY, &led, sizeof(led), 437 0); 438} 439 440static int ar5523_set_rxfilter(struct ar5523 *ar, u32 bits, u32 op) 441{ 442 struct ar5523_cmd_rx_filter rxfilter; 443 444 rxfilter.bits = cpu_to_be32(bits); 445 rxfilter.op = cpu_to_be32(op); 446 447 ar5523_dbg(ar, "setting Rx filter=0x%x flags=0x%x\n", bits, op); 448 return ar5523_cmd_write(ar, WDCMSG_RX_FILTER, &rxfilter, 449 sizeof(rxfilter), 0); 450} 451 452static int ar5523_reset_tx_queues(struct ar5523 *ar) 453{ 454 __be32 qid = cpu_to_be32(0); 455 456 ar5523_dbg(ar, "resetting Tx queue\n"); 457 return ar5523_cmd_write(ar, WDCMSG_RELEASE_TX_QUEUE, 458 &qid, sizeof(qid), 0); 459} 460 461static int ar5523_set_chan(struct ar5523 *ar) 462{ 463 struct ieee80211_conf *conf = &ar->hw->conf; 464 465 struct ar5523_cmd_reset reset; 466 467 memset(&reset, 0, sizeof(reset)); 468 reset.flags |= cpu_to_be32(UATH_CHAN_2GHZ); 469 reset.flags |= cpu_to_be32(UATH_CHAN_OFDM); 470 reset.freq = cpu_to_be32(conf->chandef.chan->center_freq); 471 reset.maxrdpower = cpu_to_be32(50); /* XXX */ 472 reset.channelchange = cpu_to_be32(1); 473 reset.keeprccontent = cpu_to_be32(0); 474 475 ar5523_dbg(ar, "set chan flags 0x%x freq %d\n", 476 be32_to_cpu(reset.flags), 477 conf->chandef.chan->center_freq); 478 return ar5523_cmd_write(ar, WDCMSG_RESET, &reset, sizeof(reset), 0); 479} 480 481static int ar5523_queue_init(struct ar5523 *ar) 482{ 483 struct ar5523_cmd_txq_setup qinfo; 484 485 ar5523_dbg(ar, "setting up Tx queue\n"); 486 qinfo.qid = cpu_to_be32(0); 487 qinfo.len = cpu_to_be32(sizeof(qinfo.attr)); 488 qinfo.attr.priority = cpu_to_be32(0); /* XXX */ 489 qinfo.attr.aifs = cpu_to_be32(3); 490 qinfo.attr.logcwmin = cpu_to_be32(4); 491 qinfo.attr.logcwmax = cpu_to_be32(10); 492 qinfo.attr.bursttime = cpu_to_be32(0); 493 qinfo.attr.mode = cpu_to_be32(0); 494 qinfo.attr.qflags = cpu_to_be32(1); /* XXX? */ 495 return ar5523_cmd_write(ar, WDCMSG_SETUP_TX_QUEUE, &qinfo, 496 sizeof(qinfo), 0); 497} 498 499static int ar5523_switch_chan(struct ar5523 *ar) 500{ 501 int error; 502 503 error = ar5523_set_chan(ar); 504 if (error) { 505 ar5523_err(ar, "could not set chan, error %d\n", error); 506 goto out_err; 507 } 508 509 /* reset Tx rings */ 510 error = ar5523_reset_tx_queues(ar); 511 if (error) { 512 ar5523_err(ar, "could not reset Tx queues, error %d\n", 513 error); 514 goto out_err; 515 } 516 /* set Tx rings WME properties */ 517 error = ar5523_queue_init(ar); 518 if (error) 519 ar5523_err(ar, "could not init wme, error %d\n", error); 520 521out_err: 522 return error; 523} 524 525static void ar5523_rx_data_put(struct ar5523 *ar, 526 struct ar5523_rx_data *data) 527{ 528 unsigned long flags; 529 spin_lock_irqsave(&ar->rx_data_list_lock, flags); 530 list_move(&data->list, &ar->rx_data_free); 531 spin_unlock_irqrestore(&ar->rx_data_list_lock, flags); 532} 533 534static void ar5523_data_rx_cb(struct urb *urb) 535{ 536 struct ar5523_rx_data *data = urb->context; 537 struct ar5523 *ar = data->ar; 538 struct ar5523_rx_desc *desc; 539 struct ar5523_chunk *chunk; 540 struct ieee80211_hw *hw = ar->hw; 541 struct ieee80211_rx_status *rx_status; 542 u32 rxlen; 543 int usblen = urb->actual_length; 544 int hdrlen, pad; 545 546 ar5523_dbg(ar, "%s\n", __func__); 547 /* sync/async unlink faults aren't errors */ 548 if (urb->status) { 549 if (urb->status != -ESHUTDOWN) 550 ar5523_err(ar, "%s: USB err: %d\n", __func__, 551 urb->status); 552 goto skip; 553 } 554 555 if (usblen < AR5523_MIN_RXBUFSZ) { 556 ar5523_err(ar, "RX: wrong xfer size (usblen=%d)\n", usblen); 557 goto skip; 558 } 559 560 chunk = (struct ar5523_chunk *) data->skb->data; 561 562 if (((chunk->flags & UATH_CFLAGS_FINAL) == 0) || 563 chunk->seqnum != 0) { 564 ar5523_dbg(ar, "RX: No final flag. s: %d f: %02x l: %d\n", 565 chunk->seqnum, chunk->flags, 566 be16_to_cpu(chunk->length)); 567 goto skip; 568 } 569 570 /* Rx descriptor is located at the end, 32-bit aligned */ 571 desc = (struct ar5523_rx_desc *) 572 (data->skb->data + usblen - sizeof(struct ar5523_rx_desc)); 573 574 rxlen = be32_to_cpu(desc->len); 575 if (rxlen > ar->rxbufsz) { 576 ar5523_dbg(ar, "RX: Bad descriptor (len=%d)\n", 577 be32_to_cpu(desc->len)); 578 goto skip; 579 } 580 581 if (!rxlen) { 582 ar5523_dbg(ar, "RX: rxlen is 0\n"); 583 goto skip; 584 } 585 586 if (be32_to_cpu(desc->status) != 0) { 587 ar5523_dbg(ar, "Bad RX status (0x%x len = %d). Skip\n", 588 be32_to_cpu(desc->status), be32_to_cpu(desc->len)); 589 goto skip; 590 } 591 592 skb_reserve(data->skb, sizeof(*chunk)); 593 skb_put(data->skb, rxlen - sizeof(struct ar5523_rx_desc)); 594 595 hdrlen = ieee80211_get_hdrlen_from_skb(data->skb); 596 if (!IS_ALIGNED(hdrlen, 4)) { 597 ar5523_dbg(ar, "eek, alignment workaround activated\n"); 598 pad = ALIGN(hdrlen, 4) - hdrlen; 599 memmove(data->skb->data + pad, data->skb->data, hdrlen); 600 skb_pull(data->skb, pad); 601 skb_put(data->skb, pad); 602 } 603 604 rx_status = IEEE80211_SKB_RXCB(data->skb); 605 memset(rx_status, 0, sizeof(*rx_status)); 606 rx_status->freq = be32_to_cpu(desc->channel); 607 rx_status->band = hw->conf.chandef.chan->band; 608 rx_status->signal = -95 + be32_to_cpu(desc->rssi); 609 610 ieee80211_rx_irqsafe(hw, data->skb); 611 data->skb = NULL; 612 613skip: 614 if (data->skb) { 615 dev_kfree_skb_irq(data->skb); 616 data->skb = NULL; 617 } 618 619 ar5523_rx_data_put(ar, data); 620 if (atomic_inc_return(&ar->rx_data_free_cnt) >= 621 AR5523_RX_DATA_REFILL_COUNT && 622 test_bit(AR5523_HW_UP, &ar->flags)) 623 queue_work(ar->wq, &ar->rx_refill_work); 624} 625 626static void ar5523_rx_refill_work(struct work_struct *work) 627{ 628 struct ar5523 *ar = container_of(work, struct ar5523, rx_refill_work); 629 struct ar5523_rx_data *data; 630 unsigned long flags; 631 int error; 632 633 ar5523_dbg(ar, "%s\n", __func__); 634 do { 635 spin_lock_irqsave(&ar->rx_data_list_lock, flags); 636 637 if (!list_empty(&ar->rx_data_free)) 638 data = (struct ar5523_rx_data *) ar->rx_data_free.next; 639 else 640 data = NULL; 641 spin_unlock_irqrestore(&ar->rx_data_list_lock, flags); 642 643 if (!data) 644 goto done; 645 646 data->skb = alloc_skb(ar->rxbufsz, GFP_KERNEL); 647 if (!data->skb) { 648 ar5523_err(ar, "could not allocate rx skbuff\n"); 649 return; 650 } 651 652 usb_fill_bulk_urb(data->urb, ar->dev, 653 ar5523_data_rx_pipe(ar->dev), data->skb->data, 654 ar->rxbufsz, ar5523_data_rx_cb, data); 655 656 spin_lock_irqsave(&ar->rx_data_list_lock, flags); 657 list_move(&data->list, &ar->rx_data_used); 658 spin_unlock_irqrestore(&ar->rx_data_list_lock, flags); 659 atomic_dec(&ar->rx_data_free_cnt); 660 661 error = usb_submit_urb(data->urb, GFP_KERNEL); 662 if (error) { 663 kfree_skb(data->skb); 664 if (error != -ENODEV) 665 ar5523_err(ar, "Err sending rx data urb %d\n", 666 error); 667 ar5523_rx_data_put(ar, data); 668 atomic_inc(&ar->rx_data_free_cnt); 669 return; 670 } 671 672 } while (true); 673done: 674 return; 675} 676 677static void ar5523_cancel_rx_bufs(struct ar5523 *ar) 678{ 679 struct ar5523_rx_data *data; 680 unsigned long flags; 681 682 do { 683 spin_lock_irqsave(&ar->rx_data_list_lock, flags); 684 if (!list_empty(&ar->rx_data_used)) 685 data = (struct ar5523_rx_data *) ar->rx_data_used.next; 686 else 687 data = NULL; 688 spin_unlock_irqrestore(&ar->rx_data_list_lock, flags); 689 690 if (!data) 691 break; 692 693 usb_kill_urb(data->urb); 694 list_move(&data->list, &ar->rx_data_free); 695 atomic_inc(&ar->rx_data_free_cnt); 696 } while (data); 697} 698 699static void ar5523_free_rx_bufs(struct ar5523 *ar) 700{ 701 struct ar5523_rx_data *data; 702 703 ar5523_cancel_rx_bufs(ar); 704 while (!list_empty(&ar->rx_data_free)) { 705 data = (struct ar5523_rx_data *) ar->rx_data_free.next; 706 list_del(&data->list); 707 usb_free_urb(data->urb); 708 } 709} 710 711static int ar5523_alloc_rx_bufs(struct ar5523 *ar) 712{ 713 int i; 714 715 for (i = 0; i < AR5523_RX_DATA_COUNT; i++) { 716 struct ar5523_rx_data *data = &ar->rx_data[i]; 717 718 data->ar = ar; 719 data->urb = usb_alloc_urb(0, GFP_KERNEL); 720 if (!data->urb) 721 goto err; 722 list_add_tail(&data->list, &ar->rx_data_free); 723 atomic_inc(&ar->rx_data_free_cnt); 724 } 725 return 0; 726 727err: 728 ar5523_free_rx_bufs(ar); 729 return -ENOMEM; 730} 731 732static void ar5523_data_tx_pkt_put(struct ar5523 *ar) 733{ 734 atomic_dec(&ar->tx_nr_total); 735 if (!atomic_dec_return(&ar->tx_nr_pending)) { 736 del_timer(&ar->tx_wd_timer); 737 wake_up(&ar->tx_flush_waitq); 738 } 739 740 if (atomic_read(&ar->tx_nr_total) < AR5523_TX_DATA_RESTART_COUNT) { 741 ar5523_dbg(ar, "restart tx queue\n"); 742 ieee80211_wake_queues(ar->hw); 743 } 744} 745 746static void ar5523_data_tx_cb(struct urb *urb) 747{ 748 struct sk_buff *skb = urb->context; 749 struct ieee80211_tx_info *txi = IEEE80211_SKB_CB(skb); 750 struct ar5523_tx_data *data = (struct ar5523_tx_data *) 751 txi->driver_data; 752 struct ar5523 *ar = data->ar; 753 unsigned long flags; 754 755 ar5523_dbg(ar, "data tx urb completed: %d\n", urb->status); 756 757 spin_lock_irqsave(&ar->tx_data_list_lock, flags); 758 list_del(&data->list); 759 spin_unlock_irqrestore(&ar->tx_data_list_lock, flags); 760 761 if (urb->status) { 762 ar5523_dbg(ar, "%s: urb status: %d\n", __func__, urb->status); 763 ar5523_data_tx_pkt_put(ar); 764 ieee80211_free_txskb(ar->hw, skb); 765 } else { 766 skb_pull(skb, sizeof(struct ar5523_tx_desc) + sizeof(__be32)); 767 ieee80211_tx_status_irqsafe(ar->hw, skb); 768 } 769 usb_free_urb(urb); 770} 771 772static void ar5523_tx(struct ieee80211_hw *hw, 773 struct ieee80211_tx_control *control, 774 struct sk_buff *skb) 775{ 776 struct ieee80211_tx_info *txi = IEEE80211_SKB_CB(skb); 777 struct ar5523_tx_data *data = (struct ar5523_tx_data *) 778 txi->driver_data; 779 struct ar5523 *ar = hw->priv; 780 unsigned long flags; 781 782 ar5523_dbg(ar, "tx called\n"); 783 if (atomic_inc_return(&ar->tx_nr_total) >= AR5523_TX_DATA_COUNT) { 784 ar5523_dbg(ar, "tx queue full\n"); 785 ar5523_dbg(ar, "stop queues (tot %d pend %d)\n", 786 atomic_read(&ar->tx_nr_total), 787 atomic_read(&ar->tx_nr_pending)); 788 ieee80211_stop_queues(hw); 789 } 790 791 spin_lock_irqsave(&ar->tx_data_list_lock, flags); 792 list_add_tail(&data->list, &ar->tx_queue_pending); 793 spin_unlock_irqrestore(&ar->tx_data_list_lock, flags); 794 795 ieee80211_queue_work(ar->hw, &ar->tx_work); 796} 797 798static void ar5523_tx_work_locked(struct ar5523 *ar) 799{ 800 struct ar5523_tx_data *data; 801 struct ar5523_tx_desc *desc; 802 struct ar5523_chunk *chunk; 803 struct ieee80211_tx_info *txi; 804 struct urb *urb; 805 struct sk_buff *skb; 806 int error = 0, paylen; 807 u32 txqid; 808 unsigned long flags; 809 810 BUILD_BUG_ON(sizeof(struct ar5523_tx_data) > 811 IEEE80211_TX_INFO_DRIVER_DATA_SIZE); 812 813 ar5523_dbg(ar, "%s\n", __func__); 814 do { 815 spin_lock_irqsave(&ar->tx_data_list_lock, flags); 816 if (!list_empty(&ar->tx_queue_pending)) { 817 data = (struct ar5523_tx_data *) 818 ar->tx_queue_pending.next; 819 list_del(&data->list); 820 } else 821 data = NULL; 822 spin_unlock_irqrestore(&ar->tx_data_list_lock, flags); 823 824 if (!data) 825 break; 826 827 txi = container_of((void *)data, struct ieee80211_tx_info, 828 driver_data); 829 txqid = 0; 830 831 skb = container_of((void *)txi, struct sk_buff, cb); 832 paylen = skb->len; 833 834 urb = usb_alloc_urb(0, GFP_KERNEL); 835 if (!urb) { 836 ieee80211_free_txskb(ar->hw, skb); 837 continue; 838 } 839 840 data->ar = ar; 841 data->urb = urb; 842 843 desc = skb_push(skb, sizeof(*desc)); 844 chunk = skb_push(skb, sizeof(*chunk)); 845 846 chunk->seqnum = 0; 847 chunk->flags = UATH_CFLAGS_FINAL; 848 chunk->length = cpu_to_be16(skb->len); 849 850 desc->msglen = cpu_to_be32(skb->len); 851 desc->msgid = AR5523_DATA_ID; 852 desc->buflen = cpu_to_be32(paylen); 853 desc->type = cpu_to_be32(WDCMSG_SEND); 854 desc->flags = cpu_to_be32(UATH_TX_NOTIFY); 855 856 if (test_bit(AR5523_CONNECTED, &ar->flags)) 857 desc->connid = cpu_to_be32(AR5523_ID_BSS); 858 else 859 desc->connid = cpu_to_be32(AR5523_ID_BROADCAST); 860 861 if (txi->flags & IEEE80211_TX_CTL_USE_MINRATE) 862 txqid |= UATH_TXQID_MINRATE; 863 864 desc->txqid = cpu_to_be32(txqid); 865 866 urb->transfer_flags = URB_ZERO_PACKET; 867 usb_fill_bulk_urb(urb, ar->dev, ar5523_data_tx_pipe(ar->dev), 868 skb->data, skb->len, ar5523_data_tx_cb, skb); 869 870 spin_lock_irqsave(&ar->tx_data_list_lock, flags); 871 list_add_tail(&data->list, &ar->tx_queue_submitted); 872 spin_unlock_irqrestore(&ar->tx_data_list_lock, flags); 873 mod_timer(&ar->tx_wd_timer, jiffies + AR5523_TX_WD_TIMEOUT); 874 atomic_inc(&ar->tx_nr_pending); 875 876 ar5523_dbg(ar, "TX Frame (%d pending)\n", 877 atomic_read(&ar->tx_nr_pending)); 878 error = usb_submit_urb(urb, GFP_KERNEL); 879 if (error) { 880 ar5523_err(ar, "error %d when submitting tx urb\n", 881 error); 882 spin_lock_irqsave(&ar->tx_data_list_lock, flags); 883 list_del(&data->list); 884 spin_unlock_irqrestore(&ar->tx_data_list_lock, flags); 885 atomic_dec(&ar->tx_nr_pending); 886 ar5523_data_tx_pkt_put(ar); 887 usb_free_urb(urb); 888 ieee80211_free_txskb(ar->hw, skb); 889 } 890 } while (true); 891} 892 893static void ar5523_tx_work(struct work_struct *work) 894{ 895 struct ar5523 *ar = container_of(work, struct ar5523, tx_work); 896 897 ar5523_dbg(ar, "%s\n", __func__); 898 mutex_lock(&ar->mutex); 899 ar5523_tx_work_locked(ar); 900 mutex_unlock(&ar->mutex); 901} 902 903static void ar5523_tx_wd_timer(struct timer_list *t) 904{ 905 struct ar5523 *ar = from_timer(ar, t, tx_wd_timer); 906 907 ar5523_dbg(ar, "TX watchdog timer triggered\n"); 908 ieee80211_queue_work(ar->hw, &ar->tx_wd_work); 909} 910 911static void ar5523_tx_wd_work(struct work_struct *work) 912{ 913 struct ar5523 *ar = container_of(work, struct ar5523, tx_wd_work); 914 915 /* Occasionally the TX queues stop responding. The only way to 916 * recover seems to be to reset the dongle. 917 */ 918 919 mutex_lock(&ar->mutex); 920 ar5523_err(ar, "TX queue stuck (tot %d pend %d)\n", 921 atomic_read(&ar->tx_nr_total), 922 atomic_read(&ar->tx_nr_pending)); 923 924 ar5523_err(ar, "Will restart dongle.\n"); 925 ar5523_cmd_write(ar, WDCMSG_TARGET_RESET, NULL, 0, 0); 926 mutex_unlock(&ar->mutex); 927} 928 929static void ar5523_flush_tx(struct ar5523 *ar) 930{ 931 ar5523_tx_work_locked(ar); 932 933 /* Don't waste time trying to flush if USB is disconnected */ 934 if (test_bit(AR5523_USB_DISCONNECTED, &ar->flags)) 935 return; 936 if (!wait_event_timeout(ar->tx_flush_waitq, 937 !atomic_read(&ar->tx_nr_pending), AR5523_FLUSH_TIMEOUT)) 938 ar5523_err(ar, "flush timeout (tot %d pend %d)\n", 939 atomic_read(&ar->tx_nr_total), 940 atomic_read(&ar->tx_nr_pending)); 941} 942 943static void ar5523_free_tx_cmd(struct ar5523 *ar) 944{ 945 struct ar5523_tx_cmd *cmd = &ar->tx_cmd; 946 947 usb_free_coherent(ar->dev, AR5523_MAX_RXCMDSZ, cmd->buf_tx, 948 cmd->urb_tx->transfer_dma); 949 usb_free_urb(cmd->urb_tx); 950} 951 952static int ar5523_alloc_tx_cmd(struct ar5523 *ar) 953{ 954 struct ar5523_tx_cmd *cmd = &ar->tx_cmd; 955 956 cmd->ar = ar; 957 init_completion(&cmd->done); 958 959 cmd->urb_tx = usb_alloc_urb(0, GFP_KERNEL); 960 if (!cmd->urb_tx) 961 return -ENOMEM; 962 cmd->buf_tx = usb_alloc_coherent(ar->dev, AR5523_MAX_TXCMDSZ, 963 GFP_KERNEL, 964 &cmd->urb_tx->transfer_dma); 965 if (!cmd->buf_tx) { 966 usb_free_urb(cmd->urb_tx); 967 return -ENOMEM; 968 } 969 return 0; 970} 971 972/* 973 * This function is called periodically (every second) when associated to 974 * query device statistics. 975 */ 976static void ar5523_stat_work(struct work_struct *work) 977{ 978 struct ar5523 *ar = container_of(work, struct ar5523, stat_work.work); 979 int error; 980 981 ar5523_dbg(ar, "%s\n", __func__); 982 mutex_lock(&ar->mutex); 983 984 /* 985 * Send request for statistics asynchronously once a second. This 986 * seems to be important. Throughput is a lot better if this is done. 987 */ 988 error = ar5523_cmd_write(ar, WDCMSG_TARGET_GET_STATS, NULL, 0, 0); 989 if (error) 990 ar5523_err(ar, "could not query stats, error %d\n", error); 991 mutex_unlock(&ar->mutex); 992 ieee80211_queue_delayed_work(ar->hw, &ar->stat_work, HZ); 993} 994 995/* 996 * Interface routines to the mac80211 stack. 997 */ 998static int ar5523_start(struct ieee80211_hw *hw) 999{ 1000 struct ar5523 *ar = hw->priv; 1001 int error; 1002 __be32 val; 1003 1004 ar5523_dbg(ar, "start called\n"); 1005 1006 mutex_lock(&ar->mutex); 1007 val = cpu_to_be32(0); 1008 ar5523_cmd_write(ar, WDCMSG_BIND, &val, sizeof(val), 0); 1009 1010 /* set MAC address */ 1011 ar5523_config_multi(ar, CFG_MAC_ADDR, &ar->hw->wiphy->perm_addr, 1012 ETH_ALEN); 1013 1014 /* XXX honor net80211 state */ 1015 ar5523_config(ar, CFG_RATE_CONTROL_ENABLE, 0x00000001); 1016 ar5523_config(ar, CFG_DIVERSITY_CTL, 0x00000001); 1017 ar5523_config(ar, CFG_ABOLT, 0x0000003f); 1018 ar5523_config(ar, CFG_WME_ENABLED, 0x00000000); 1019 1020 ar5523_config(ar, CFG_SERVICE_TYPE, 1); 1021 ar5523_config(ar, CFG_TP_SCALE, 0x00000000); 1022 ar5523_config(ar, CFG_TPC_HALF_DBM5, 0x0000003c); 1023 ar5523_config(ar, CFG_TPC_HALF_DBM2, 0x0000003c); 1024 ar5523_config(ar, CFG_OVERRD_TX_POWER, 0x00000000); 1025 ar5523_config(ar, CFG_GMODE_PROTECTION, 0x00000000); 1026 ar5523_config(ar, CFG_GMODE_PROTECT_RATE_INDEX, 0x00000003); 1027 ar5523_config(ar, CFG_PROTECTION_TYPE, 0x00000000); 1028 ar5523_config(ar, CFG_MODE_CTS, 0x00000002); 1029 1030 error = ar5523_cmd_read(ar, WDCMSG_TARGET_START, NULL, 0, 1031 &val, sizeof(val), AR5523_CMD_FLAG_MAGIC); 1032 if (error) { 1033 ar5523_dbg(ar, "could not start target, error %d\n", error); 1034 goto err; 1035 } 1036 ar5523_dbg(ar, "WDCMSG_TARGET_START returns handle: 0x%x\n", 1037 be32_to_cpu(val)); 1038 1039 ar5523_switch_chan(ar); 1040 1041 val = cpu_to_be32(TARGET_DEVICE_AWAKE); 1042 ar5523_cmd_write(ar, WDCMSG_SET_PWR_MODE, &val, sizeof(val), 0); 1043 /* XXX? check */ 1044 ar5523_cmd_write(ar, WDCMSG_RESET_KEY_CACHE, NULL, 0, 0); 1045 1046 set_bit(AR5523_HW_UP, &ar->flags); 1047 queue_work(ar->wq, &ar->rx_refill_work); 1048 1049 /* enable Rx */ 1050 ar5523_set_rxfilter(ar, 0, UATH_FILTER_OP_INIT); 1051 ar5523_set_rxfilter(ar, 1052 UATH_FILTER_RX_UCAST | UATH_FILTER_RX_MCAST | 1053 UATH_FILTER_RX_BCAST | UATH_FILTER_RX_BEACON, 1054 UATH_FILTER_OP_SET); 1055 1056 ar5523_set_ledsteady(ar, UATH_LED_ACTIVITY, UATH_LED_ON); 1057 ar5523_dbg(ar, "start OK\n"); 1058 1059err: 1060 mutex_unlock(&ar->mutex); 1061 return error; 1062} 1063 1064static void ar5523_stop(struct ieee80211_hw *hw) 1065{ 1066 struct ar5523 *ar = hw->priv; 1067 1068 ar5523_dbg(ar, "stop called\n"); 1069 1070 cancel_delayed_work_sync(&ar->stat_work); 1071 mutex_lock(&ar->mutex); 1072 clear_bit(AR5523_HW_UP, &ar->flags); 1073 1074 ar5523_set_ledsteady(ar, UATH_LED_LINK, UATH_LED_OFF); 1075 ar5523_set_ledsteady(ar, UATH_LED_ACTIVITY, UATH_LED_OFF); 1076 1077 ar5523_cmd_write(ar, WDCMSG_TARGET_STOP, NULL, 0, 0); 1078 1079 del_timer_sync(&ar->tx_wd_timer); 1080 cancel_work_sync(&ar->tx_wd_work); 1081 cancel_work_sync(&ar->rx_refill_work); 1082 ar5523_cancel_rx_bufs(ar); 1083 mutex_unlock(&ar->mutex); 1084} 1085 1086static int ar5523_set_rts_threshold(struct ieee80211_hw *hw, u32 value) 1087{ 1088 struct ar5523 *ar = hw->priv; 1089 int ret; 1090 1091 ar5523_dbg(ar, "set_rts_threshold called\n"); 1092 mutex_lock(&ar->mutex); 1093 1094 ret = ar5523_config(ar, CFG_USER_RTS_THRESHOLD, value); 1095 1096 mutex_unlock(&ar->mutex); 1097 return ret; 1098} 1099 1100static void ar5523_flush(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 1101 u32 queues, bool drop) 1102{ 1103 struct ar5523 *ar = hw->priv; 1104 1105 ar5523_dbg(ar, "flush called\n"); 1106 ar5523_flush_tx(ar); 1107} 1108 1109static int ar5523_add_interface(struct ieee80211_hw *hw, 1110 struct ieee80211_vif *vif) 1111{ 1112 struct ar5523 *ar = hw->priv; 1113 1114 ar5523_dbg(ar, "add interface called\n"); 1115 1116 if (ar->vif) { 1117 ar5523_dbg(ar, "invalid add_interface\n"); 1118 return -EOPNOTSUPP; 1119 } 1120 1121 switch (vif->type) { 1122 case NL80211_IFTYPE_STATION: 1123 ar->vif = vif; 1124 break; 1125 default: 1126 return -EOPNOTSUPP; 1127 } 1128 return 0; 1129} 1130 1131static void ar5523_remove_interface(struct ieee80211_hw *hw, 1132 struct ieee80211_vif *vif) 1133{ 1134 struct ar5523 *ar = hw->priv; 1135 1136 ar5523_dbg(ar, "remove interface called\n"); 1137 ar->vif = NULL; 1138} 1139 1140static int ar5523_hwconfig(struct ieee80211_hw *hw, u32 changed) 1141{ 1142 struct ar5523 *ar = hw->priv; 1143 1144 ar5523_dbg(ar, "config called\n"); 1145 mutex_lock(&ar->mutex); 1146 if (changed & IEEE80211_CONF_CHANGE_CHANNEL) { 1147 ar5523_dbg(ar, "Do channel switch\n"); 1148 ar5523_flush_tx(ar); 1149 ar5523_switch_chan(ar); 1150 } 1151 mutex_unlock(&ar->mutex); 1152 return 0; 1153} 1154 1155static int ar5523_get_wlan_mode(struct ar5523 *ar, 1156 struct ieee80211_bss_conf *bss_conf) 1157{ 1158 struct ieee80211_supported_band *band; 1159 int bit; 1160 struct ieee80211_sta *sta; 1161 u32 sta_rate_set; 1162 1163 band = ar->hw->wiphy->bands[ar->hw->conf.chandef.chan->band]; 1164 sta = ieee80211_find_sta(ar->vif, bss_conf->bssid); 1165 if (!sta) { 1166 ar5523_info(ar, "STA not found!\n"); 1167 return WLAN_MODE_11b; 1168 } 1169 sta_rate_set = sta->supp_rates[ar->hw->conf.chandef.chan->band]; 1170 1171 for (bit = 0; bit < band->n_bitrates; bit++) { 1172 if (sta_rate_set & 1) { 1173 int rate = band->bitrates[bit].bitrate; 1174 switch (rate) { 1175 case 60: 1176 case 90: 1177 case 120: 1178 case 180: 1179 case 240: 1180 case 360: 1181 case 480: 1182 case 540: 1183 return WLAN_MODE_11g; 1184 } 1185 } 1186 sta_rate_set >>= 1; 1187 } 1188 return WLAN_MODE_11b; 1189} 1190 1191static void ar5523_create_rateset(struct ar5523 *ar, 1192 struct ieee80211_bss_conf *bss_conf, 1193 struct ar5523_cmd_rateset *rs, 1194 bool basic) 1195{ 1196 struct ieee80211_supported_band *band; 1197 struct ieee80211_sta *sta; 1198 int bit, i = 0; 1199 u32 sta_rate_set, basic_rate_set; 1200 1201 sta = ieee80211_find_sta(ar->vif, bss_conf->bssid); 1202 basic_rate_set = bss_conf->basic_rates; 1203 if (!sta) { 1204 ar5523_info(ar, "STA not found. Cannot set rates\n"); 1205 sta_rate_set = bss_conf->basic_rates; 1206 } else 1207 sta_rate_set = sta->supp_rates[ar->hw->conf.chandef.chan->band]; 1208 1209 ar5523_dbg(ar, "sta rate_set = %08x\n", sta_rate_set); 1210 1211 band = ar->hw->wiphy->bands[ar->hw->conf.chandef.chan->band]; 1212 for (bit = 0; bit < band->n_bitrates; bit++) { 1213 BUG_ON(i >= AR5523_MAX_NRATES); 1214 ar5523_dbg(ar, "Considering rate %d : %d\n", 1215 band->bitrates[bit].hw_value, sta_rate_set & 1); 1216 if (sta_rate_set & 1) { 1217 rs->set[i] = band->bitrates[bit].hw_value; 1218 if (basic_rate_set & 1 && basic) 1219 rs->set[i] |= 0x80; 1220 i++; 1221 } 1222 sta_rate_set >>= 1; 1223 basic_rate_set >>= 1; 1224 } 1225 1226 rs->length = i; 1227} 1228 1229static int ar5523_set_basic_rates(struct ar5523 *ar, 1230 struct ieee80211_bss_conf *bss) 1231{ 1232 struct ar5523_cmd_rates rates; 1233 1234 memset(&rates, 0, sizeof(rates)); 1235 rates.connid = cpu_to_be32(2); /* XXX */ 1236 rates.size = cpu_to_be32(sizeof(struct ar5523_cmd_rateset)); 1237 ar5523_create_rateset(ar, bss, &rates.rateset, true); 1238 1239 return ar5523_cmd_write(ar, WDCMSG_SET_BASIC_RATE, &rates, 1240 sizeof(rates), 0); 1241} 1242 1243static int ar5523_create_connection(struct ar5523 *ar, 1244 struct ieee80211_vif *vif, 1245 struct ieee80211_bss_conf *bss) 1246{ 1247 struct ar5523_cmd_create_connection create; 1248 int wlan_mode; 1249 1250 memset(&create, 0, sizeof(create)); 1251 create.connid = cpu_to_be32(2); 1252 create.bssid = cpu_to_be32(0); 1253 /* XXX packed or not? */ 1254 create.size = cpu_to_be32(sizeof(struct ar5523_cmd_rateset)); 1255 1256 ar5523_create_rateset(ar, bss, &create.connattr.rateset, false); 1257 1258 wlan_mode = ar5523_get_wlan_mode(ar, bss); 1259 create.connattr.wlanmode = cpu_to_be32(wlan_mode); 1260 1261 return ar5523_cmd_write(ar, WDCMSG_CREATE_CONNECTION, &create, 1262 sizeof(create), 0); 1263} 1264 1265static int ar5523_write_associd(struct ar5523 *ar, 1266 struct ieee80211_bss_conf *bss) 1267{ 1268 struct ar5523_cmd_set_associd associd; 1269 1270 memset(&associd, 0, sizeof(associd)); 1271 associd.defaultrateix = cpu_to_be32(0); /* XXX */ 1272 associd.associd = cpu_to_be32(bss->aid); 1273 associd.timoffset = cpu_to_be32(0x3b); /* XXX */ 1274 memcpy(associd.bssid, bss->bssid, ETH_ALEN); 1275 return ar5523_cmd_write(ar, WDCMSG_WRITE_ASSOCID, &associd, 1276 sizeof(associd), 0); 1277} 1278 1279static void ar5523_bss_info_changed(struct ieee80211_hw *hw, 1280 struct ieee80211_vif *vif, 1281 struct ieee80211_bss_conf *bss, 1282 u32 changed) 1283{ 1284 struct ar5523 *ar = hw->priv; 1285 int error; 1286 1287 ar5523_dbg(ar, "bss_info_changed called\n"); 1288 mutex_lock(&ar->mutex); 1289 1290 if (!(changed & BSS_CHANGED_ASSOC)) 1291 goto out_unlock; 1292 1293 if (bss->assoc) { 1294 error = ar5523_create_connection(ar, vif, bss); 1295 if (error) { 1296 ar5523_err(ar, "could not create connection\n"); 1297 goto out_unlock; 1298 } 1299 1300 error = ar5523_set_basic_rates(ar, bss); 1301 if (error) { 1302 ar5523_err(ar, "could not set negotiated rate set\n"); 1303 goto out_unlock; 1304 } 1305 1306 error = ar5523_write_associd(ar, bss); 1307 if (error) { 1308 ar5523_err(ar, "could not set association\n"); 1309 goto out_unlock; 1310 } 1311 1312 /* turn link LED on */ 1313 ar5523_set_ledsteady(ar, UATH_LED_LINK, UATH_LED_ON); 1314 set_bit(AR5523_CONNECTED, &ar->flags); 1315 ieee80211_queue_delayed_work(hw, &ar->stat_work, HZ); 1316 1317 } else { 1318 cancel_delayed_work(&ar->stat_work); 1319 clear_bit(AR5523_CONNECTED, &ar->flags); 1320 ar5523_set_ledsteady(ar, UATH_LED_LINK, UATH_LED_OFF); 1321 } 1322 1323out_unlock: 1324 mutex_unlock(&ar->mutex); 1325 1326} 1327 1328#define AR5523_SUPPORTED_FILTERS (FIF_ALLMULTI | \ 1329 FIF_FCSFAIL | \ 1330 FIF_OTHER_BSS) 1331 1332static void ar5523_configure_filter(struct ieee80211_hw *hw, 1333 unsigned int changed_flags, 1334 unsigned int *total_flags, 1335 u64 multicast) 1336{ 1337 struct ar5523 *ar = hw->priv; 1338 u32 filter = 0; 1339 1340 ar5523_dbg(ar, "configure_filter called\n"); 1341 mutex_lock(&ar->mutex); 1342 ar5523_flush_tx(ar); 1343 1344 *total_flags &= AR5523_SUPPORTED_FILTERS; 1345 1346 /* The filters seems strange. UATH_FILTER_RX_BCAST and 1347 * UATH_FILTER_RX_MCAST does not result in those frames being RXed. 1348 * The only way I have found to get [mb]cast frames seems to be 1349 * to set UATH_FILTER_RX_PROM. */ 1350 filter |= UATH_FILTER_RX_UCAST | UATH_FILTER_RX_MCAST | 1351 UATH_FILTER_RX_BCAST | UATH_FILTER_RX_BEACON | 1352 UATH_FILTER_RX_PROM; 1353 1354 ar5523_set_rxfilter(ar, 0, UATH_FILTER_OP_INIT); 1355 ar5523_set_rxfilter(ar, filter, UATH_FILTER_OP_SET); 1356 1357 mutex_unlock(&ar->mutex); 1358} 1359 1360static const struct ieee80211_ops ar5523_ops = { 1361 .start = ar5523_start, 1362 .stop = ar5523_stop, 1363 .tx = ar5523_tx, 1364 .set_rts_threshold = ar5523_set_rts_threshold, 1365 .add_interface = ar5523_add_interface, 1366 .remove_interface = ar5523_remove_interface, 1367 .config = ar5523_hwconfig, 1368 .bss_info_changed = ar5523_bss_info_changed, 1369 .configure_filter = ar5523_configure_filter, 1370 .flush = ar5523_flush, 1371}; 1372 1373static int ar5523_host_available(struct ar5523 *ar) 1374{ 1375 struct ar5523_cmd_host_available setup; 1376 1377 /* inform target the host is available */ 1378 setup.sw_ver_major = cpu_to_be32(ATH_SW_VER_MAJOR); 1379 setup.sw_ver_minor = cpu_to_be32(ATH_SW_VER_MINOR); 1380 setup.sw_ver_patch = cpu_to_be32(ATH_SW_VER_PATCH); 1381 setup.sw_ver_build = cpu_to_be32(ATH_SW_VER_BUILD); 1382 return ar5523_cmd_read(ar, WDCMSG_HOST_AVAILABLE, 1383 &setup, sizeof(setup), NULL, 0, 0); 1384} 1385 1386static int ar5523_get_devstatus(struct ar5523 *ar) 1387{ 1388 u8 macaddr[ETH_ALEN]; 1389 int error; 1390 1391 /* retrieve MAC address */ 1392 error = ar5523_get_status(ar, ST_MAC_ADDR, macaddr, ETH_ALEN); 1393 if (error) { 1394 ar5523_err(ar, "could not read MAC address\n"); 1395 return error; 1396 } 1397 1398 SET_IEEE80211_PERM_ADDR(ar->hw, macaddr); 1399 1400 error = ar5523_get_status(ar, ST_SERIAL_NUMBER, 1401 &ar->serial[0], sizeof(ar->serial)); 1402 if (error) { 1403 ar5523_err(ar, "could not read device serial number\n"); 1404 return error; 1405 } 1406 return 0; 1407} 1408 1409#define AR5523_SANE_RXBUFSZ 2000 1410 1411static int ar5523_get_max_rxsz(struct ar5523 *ar) 1412{ 1413 int error; 1414 __be32 rxsize; 1415 1416 /* Get max rx size */ 1417 error = ar5523_get_status(ar, ST_WDC_TRANSPORT_CHUNK_SIZE, &rxsize, 1418 sizeof(rxsize)); 1419 if (error != 0) { 1420 ar5523_err(ar, "could not read max RX size\n"); 1421 return error; 1422 } 1423 1424 ar->rxbufsz = be32_to_cpu(rxsize); 1425 1426 if (!ar->rxbufsz || ar->rxbufsz > AR5523_SANE_RXBUFSZ) { 1427 ar5523_err(ar, "Bad rxbufsz from device. Using %d instead\n", 1428 AR5523_SANE_RXBUFSZ); 1429 ar->rxbufsz = AR5523_SANE_RXBUFSZ; 1430 } 1431 1432 ar5523_dbg(ar, "Max RX buf size: %d\n", ar->rxbufsz); 1433 return 0; 1434} 1435 1436/* 1437 * This is copied from rtl818x, but we should probably move this 1438 * to common code as in OpenBSD. 1439 */ 1440static const struct ieee80211_rate ar5523_rates[] = { 1441 { .bitrate = 10, .hw_value = 2, }, 1442 { .bitrate = 20, .hw_value = 4 }, 1443 { .bitrate = 55, .hw_value = 11, }, 1444 { .bitrate = 110, .hw_value = 22, }, 1445 { .bitrate = 60, .hw_value = 12, }, 1446 { .bitrate = 90, .hw_value = 18, }, 1447 { .bitrate = 120, .hw_value = 24, }, 1448 { .bitrate = 180, .hw_value = 36, }, 1449 { .bitrate = 240, .hw_value = 48, }, 1450 { .bitrate = 360, .hw_value = 72, }, 1451 { .bitrate = 480, .hw_value = 96, }, 1452 { .bitrate = 540, .hw_value = 108, }, 1453}; 1454 1455static const struct ieee80211_channel ar5523_channels[] = { 1456 { .center_freq = 2412 }, 1457 { .center_freq = 2417 }, 1458 { .center_freq = 2422 }, 1459 { .center_freq = 2427 }, 1460 { .center_freq = 2432 }, 1461 { .center_freq = 2437 }, 1462 { .center_freq = 2442 }, 1463 { .center_freq = 2447 }, 1464 { .center_freq = 2452 }, 1465 { .center_freq = 2457 }, 1466 { .center_freq = 2462 }, 1467 { .center_freq = 2467 }, 1468 { .center_freq = 2472 }, 1469 { .center_freq = 2484 }, 1470}; 1471 1472static int ar5523_init_modes(struct ar5523 *ar) 1473{ 1474 BUILD_BUG_ON(sizeof(ar->channels) != sizeof(ar5523_channels)); 1475 BUILD_BUG_ON(sizeof(ar->rates) != sizeof(ar5523_rates)); 1476 1477 memcpy(ar->channels, ar5523_channels, sizeof(ar5523_channels)); 1478 memcpy(ar->rates, ar5523_rates, sizeof(ar5523_rates)); 1479 1480 ar->band.band = NL80211_BAND_2GHZ; 1481 ar->band.channels = ar->channels; 1482 ar->band.n_channels = ARRAY_SIZE(ar5523_channels); 1483 ar->band.bitrates = ar->rates; 1484 ar->band.n_bitrates = ARRAY_SIZE(ar5523_rates); 1485 ar->hw->wiphy->bands[NL80211_BAND_2GHZ] = &ar->band; 1486 return 0; 1487} 1488 1489/* 1490 * Load the MIPS R4000 microcode into the device. Once the image is loaded, 1491 * the device will detach itself from the bus and reattach later with a new 1492 * product Id (a la ezusb). 1493 */ 1494static int ar5523_load_firmware(struct usb_device *dev) 1495{ 1496 struct ar5523_fwblock *txblock, *rxblock; 1497 const struct firmware *fw; 1498 void *fwbuf; 1499 int len, offset; 1500 int foolen; /* XXX(hch): handle short transfers */ 1501 int error = -ENXIO; 1502 1503 if (request_firmware(&fw, AR5523_FIRMWARE_FILE, &dev->dev)) { 1504 dev_err(&dev->dev, "no firmware found: %s\n", 1505 AR5523_FIRMWARE_FILE); 1506 return -ENOENT; 1507 } 1508 1509 txblock = kmalloc(sizeof(*txblock), GFP_KERNEL); 1510 if (!txblock) 1511 goto out; 1512 1513 rxblock = kmalloc(sizeof(*rxblock), GFP_KERNEL); 1514 if (!rxblock) 1515 goto out_free_txblock; 1516 1517 fwbuf = kmalloc(AR5523_MAX_FWBLOCK_SIZE, GFP_KERNEL); 1518 if (!fwbuf) 1519 goto out_free_rxblock; 1520 1521 memset(txblock, 0, sizeof(struct ar5523_fwblock)); 1522 txblock->flags = cpu_to_be32(AR5523_WRITE_BLOCK); 1523 txblock->total = cpu_to_be32(fw->size); 1524 1525 offset = 0; 1526 len = fw->size; 1527 while (len > 0) { 1528 int mlen = min(len, AR5523_MAX_FWBLOCK_SIZE); 1529 1530 txblock->remain = cpu_to_be32(len - mlen); 1531 txblock->len = cpu_to_be32(mlen); 1532 1533 /* send firmware block meta-data */ 1534 error = usb_bulk_msg(dev, ar5523_cmd_tx_pipe(dev), 1535 txblock, sizeof(*txblock), &foolen, 1536 AR5523_CMD_TIMEOUT); 1537 if (error) { 1538 dev_err(&dev->dev, 1539 "could not send firmware block info\n"); 1540 goto out_free_fwbuf; 1541 } 1542 1543 /* send firmware block data */ 1544 memcpy(fwbuf, fw->data + offset, mlen); 1545 error = usb_bulk_msg(dev, ar5523_data_tx_pipe(dev), 1546 fwbuf, mlen, &foolen, 1547 AR5523_DATA_TIMEOUT); 1548 if (error) { 1549 dev_err(&dev->dev, 1550 "could not send firmware block data\n"); 1551 goto out_free_fwbuf; 1552 } 1553 1554 /* wait for ack from firmware */ 1555 error = usb_bulk_msg(dev, ar5523_cmd_rx_pipe(dev), 1556 rxblock, sizeof(*rxblock), &foolen, 1557 AR5523_CMD_TIMEOUT); 1558 if (error) { 1559 dev_err(&dev->dev, 1560 "could not read firmware answer\n"); 1561 goto out_free_fwbuf; 1562 } 1563 1564 len -= mlen; 1565 offset += mlen; 1566 } 1567 1568 /* 1569 * Set the error to -ENXIO to make sure we continue probing for 1570 * a driver. 1571 */ 1572 error = -ENXIO; 1573 1574 out_free_fwbuf: 1575 kfree(fwbuf); 1576 out_free_rxblock: 1577 kfree(rxblock); 1578 out_free_txblock: 1579 kfree(txblock); 1580 out: 1581 release_firmware(fw); 1582 return error; 1583} 1584 1585static int ar5523_probe(struct usb_interface *intf, 1586 const struct usb_device_id *id) 1587{ 1588 struct usb_device *dev = interface_to_usbdev(intf); 1589 struct ieee80211_hw *hw; 1590 struct ar5523 *ar; 1591 int error = -ENOMEM; 1592 1593 /* 1594 * Load firmware if the device requires it. This will return 1595 * -ENXIO on success and we'll get called back afer the usb 1596 * id changes to indicate that the firmware is present. 1597 */ 1598 if (id->driver_info & AR5523_FLAG_PRE_FIRMWARE) 1599 return ar5523_load_firmware(dev); 1600 1601 1602 hw = ieee80211_alloc_hw(sizeof(*ar), &ar5523_ops); 1603 if (!hw) 1604 goto out; 1605 SET_IEEE80211_DEV(hw, &intf->dev); 1606 1607 ar = hw->priv; 1608 ar->hw = hw; 1609 ar->dev = dev; 1610 mutex_init(&ar->mutex); 1611 1612 INIT_DELAYED_WORK(&ar->stat_work, ar5523_stat_work); 1613 timer_setup(&ar->tx_wd_timer, ar5523_tx_wd_timer, 0); 1614 INIT_WORK(&ar->tx_wd_work, ar5523_tx_wd_work); 1615 INIT_WORK(&ar->tx_work, ar5523_tx_work); 1616 INIT_LIST_HEAD(&ar->tx_queue_pending); 1617 INIT_LIST_HEAD(&ar->tx_queue_submitted); 1618 spin_lock_init(&ar->tx_data_list_lock); 1619 atomic_set(&ar->tx_nr_total, 0); 1620 atomic_set(&ar->tx_nr_pending, 0); 1621 init_waitqueue_head(&ar->tx_flush_waitq); 1622 1623 atomic_set(&ar->rx_data_free_cnt, 0); 1624 INIT_WORK(&ar->rx_refill_work, ar5523_rx_refill_work); 1625 INIT_LIST_HEAD(&ar->rx_data_free); 1626 INIT_LIST_HEAD(&ar->rx_data_used); 1627 spin_lock_init(&ar->rx_data_list_lock); 1628 1629 ar->wq = create_singlethread_workqueue("ar5523"); 1630 if (!ar->wq) { 1631 ar5523_err(ar, "Could not create wq\n"); 1632 goto out_free_ar; 1633 } 1634 1635 error = ar5523_alloc_rx_bufs(ar); 1636 if (error) { 1637 ar5523_err(ar, "Could not allocate rx buffers\n"); 1638 goto out_free_wq; 1639 } 1640 1641 error = ar5523_alloc_rx_cmd(ar); 1642 if (error) { 1643 ar5523_err(ar, "Could not allocate rx command buffers\n"); 1644 goto out_free_rx_bufs; 1645 } 1646 1647 error = ar5523_alloc_tx_cmd(ar); 1648 if (error) { 1649 ar5523_err(ar, "Could not allocate tx command buffers\n"); 1650 goto out_free_rx_cmd; 1651 } 1652 1653 error = ar5523_submit_rx_cmd(ar); 1654 if (error) { 1655 ar5523_err(ar, "Failed to submit rx cmd\n"); 1656 goto out_free_tx_cmd; 1657 } 1658 1659 /* 1660 * We're now ready to send/receive firmware commands. 1661 */ 1662 error = ar5523_host_available(ar); 1663 if (error) { 1664 ar5523_err(ar, "could not initialize adapter\n"); 1665 goto out_cancel_rx_cmd; 1666 } 1667 1668 error = ar5523_get_max_rxsz(ar); 1669 if (error) { 1670 ar5523_err(ar, "could not get caps from adapter\n"); 1671 goto out_cancel_rx_cmd; 1672 } 1673 1674 error = ar5523_get_devcap(ar); 1675 if (error) { 1676 ar5523_err(ar, "could not get caps from adapter\n"); 1677 goto out_cancel_rx_cmd; 1678 } 1679 1680 error = ar5523_get_devstatus(ar); 1681 if (error != 0) { 1682 ar5523_err(ar, "could not get device status\n"); 1683 goto out_cancel_rx_cmd; 1684 } 1685 1686 ar5523_info(ar, "MAC/BBP AR5523, RF AR%c112\n", 1687 (id->driver_info & AR5523_FLAG_ABG) ? '5' : '2'); 1688 1689 ar->vif = NULL; 1690 ieee80211_hw_set(hw, HAS_RATE_CONTROL); 1691 ieee80211_hw_set(hw, RX_INCLUDES_FCS); 1692 ieee80211_hw_set(hw, SIGNAL_DBM); 1693 hw->extra_tx_headroom = sizeof(struct ar5523_tx_desc) + 1694 sizeof(struct ar5523_chunk); 1695 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION); 1696 hw->queues = 1; 1697 1698 error = ar5523_init_modes(ar); 1699 if (error) 1700 goto out_cancel_rx_cmd; 1701 1702 wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_CQM_RSSI_LIST); 1703 1704 usb_set_intfdata(intf, hw); 1705 1706 error = ieee80211_register_hw(hw); 1707 if (error) { 1708 ar5523_err(ar, "could not register device\n"); 1709 goto out_cancel_rx_cmd; 1710 } 1711 1712 ar5523_info(ar, "Found and initialized AR5523 device\n"); 1713 return 0; 1714 1715out_cancel_rx_cmd: 1716 ar5523_cancel_rx_cmd(ar); 1717out_free_tx_cmd: 1718 ar5523_free_tx_cmd(ar); 1719out_free_rx_cmd: 1720 ar5523_free_rx_cmd(ar); 1721out_free_rx_bufs: 1722 ar5523_free_rx_bufs(ar); 1723out_free_wq: 1724 destroy_workqueue(ar->wq); 1725out_free_ar: 1726 ieee80211_free_hw(hw); 1727out: 1728 return error; 1729} 1730 1731static void ar5523_disconnect(struct usb_interface *intf) 1732{ 1733 struct ieee80211_hw *hw = usb_get_intfdata(intf); 1734 struct ar5523 *ar = hw->priv; 1735 1736 ar5523_dbg(ar, "detaching\n"); 1737 set_bit(AR5523_USB_DISCONNECTED, &ar->flags); 1738 1739 ieee80211_unregister_hw(hw); 1740 1741 ar5523_cancel_rx_cmd(ar); 1742 ar5523_free_tx_cmd(ar); 1743 ar5523_free_rx_cmd(ar); 1744 ar5523_free_rx_bufs(ar); 1745 1746 destroy_workqueue(ar->wq); 1747 1748 ieee80211_free_hw(hw); 1749 usb_set_intfdata(intf, NULL); 1750} 1751 1752#define AR5523_DEVICE_UG(vendor, device) \ 1753 { USB_DEVICE((vendor), (device)) }, \ 1754 { USB_DEVICE((vendor), (device) + 1), \ 1755 .driver_info = AR5523_FLAG_PRE_FIRMWARE } 1756#define AR5523_DEVICE_UX(vendor, device) \ 1757 { USB_DEVICE((vendor), (device)), \ 1758 .driver_info = AR5523_FLAG_ABG }, \ 1759 { USB_DEVICE((vendor), (device) + 1), \ 1760 .driver_info = AR5523_FLAG_ABG|AR5523_FLAG_PRE_FIRMWARE } 1761 1762static const struct usb_device_id ar5523_id_table[] = { 1763 AR5523_DEVICE_UG(0x168c, 0x0001), /* Atheros / AR5523 */ 1764 AR5523_DEVICE_UG(0x0cf3, 0x0001), /* Atheros2 / AR5523_1 */ 1765 AR5523_DEVICE_UG(0x0cf3, 0x0003), /* Atheros2 / AR5523_2 */ 1766 AR5523_DEVICE_UX(0x0cf3, 0x0005), /* Atheros2 / AR5523_3 */ 1767 AR5523_DEVICE_UG(0x0d8e, 0x7801), /* Conceptronic / AR5523_1 */ 1768 AR5523_DEVICE_UX(0x0d8e, 0x7811), /* Conceptronic / AR5523_2 */ 1769 AR5523_DEVICE_UX(0x2001, 0x3a00), /* Dlink / DWLAG132 */ 1770 AR5523_DEVICE_UG(0x2001, 0x3a02), /* Dlink / DWLG132 */ 1771 AR5523_DEVICE_UX(0x2001, 0x3a04), /* Dlink / DWLAG122 */ 1772 AR5523_DEVICE_UG(0x07d1, 0x3a07), /* D-Link / WUA-2340 rev A1 */ 1773 AR5523_DEVICE_UG(0x1690, 0x0712), /* Gigaset / AR5523 */ 1774 AR5523_DEVICE_UG(0x1690, 0x0710), /* Gigaset / SMCWUSBTG */ 1775 AR5523_DEVICE_UG(0x129b, 0x160b), /* Gigaset / USB stick 108 1776 (CyberTAN Technology) */ 1777 AR5523_DEVICE_UG(0x16ab, 0x7801), /* Globalsun / AR5523_1 */ 1778 AR5523_DEVICE_UX(0x16ab, 0x7811), /* Globalsun / AR5523_2 */ 1779 AR5523_DEVICE_UG(0x0d8e, 0x7802), /* Globalsun / AR5523_3 */ 1780 AR5523_DEVICE_UX(0x0846, 0x4300), /* Netgear / WG111U */ 1781 AR5523_DEVICE_UG(0x0846, 0x4250), /* Netgear / WG111T */ 1782 AR5523_DEVICE_UG(0x0846, 0x5f00), /* Netgear / WPN111 */ 1783 AR5523_DEVICE_UG(0x083a, 0x4506), /* SMC / EZ Connect 1784 SMCWUSBT-G2 */ 1785 AR5523_DEVICE_UG(0x157e, 0x3006), /* Umedia / AR5523_1 */ 1786 AR5523_DEVICE_UX(0x157e, 0x3205), /* Umedia / AR5523_2 */ 1787 AR5523_DEVICE_UG(0x157e, 0x3006), /* Umedia / TEW444UBEU */ 1788 AR5523_DEVICE_UG(0x1435, 0x0826), /* Wistronneweb / AR5523_1 */ 1789 AR5523_DEVICE_UX(0x1435, 0x0828), /* Wistronneweb / AR5523_2 */ 1790 AR5523_DEVICE_UG(0x0cde, 0x0012), /* Zcom / AR5523 */ 1791 AR5523_DEVICE_UG(0x1385, 0x4250), /* Netgear3 / WG111T (2) */ 1792 AR5523_DEVICE_UG(0x1385, 0x5f00), /* Netgear / WPN111 */ 1793 AR5523_DEVICE_UG(0x1385, 0x5f02), /* Netgear / WPN111 */ 1794 { } 1795}; 1796MODULE_DEVICE_TABLE(usb, ar5523_id_table); 1797 1798static struct usb_driver ar5523_driver = { 1799 .name = "ar5523", 1800 .id_table = ar5523_id_table, 1801 .probe = ar5523_probe, 1802 .disconnect = ar5523_disconnect, 1803}; 1804 1805module_usb_driver(ar5523_driver); 1806 1807MODULE_LICENSE("Dual BSD/GPL"); 1808MODULE_FIRMWARE(AR5523_FIRMWARE_FILE); 1809