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 45 static int ar5523_submit_rx_cmd(struct ar5523 *ar); 46 static void ar5523_data_tx_pkt_put(struct ar5523 *ar); 47 48 static 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 to 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 88 out: 89 complete(&cmd->done); 90 } 91 92 static 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 memcpy(cmd->odata, hdr + 1, sizeof(u32)); 157 cmd->olen = sizeof(u32); 158 cmd->res = 0; 159 complete(&cmd->done); 160 break; 161 162 case WDCMSG_STATS_UPDATE: 163 ar5523_dbg(ar, "WDCMSG_STATS_UPDATE\n"); 164 break; 165 } 166 167 skip: 168 ar5523_submit_rx_cmd(ar); 169 } 170 171 static int ar5523_alloc_rx_cmd(struct ar5523 *ar) 172 { 173 ar->rx_cmd_urb = usb_alloc_urb(0, GFP_KERNEL); 174 if (!ar->rx_cmd_urb) 175 return -ENOMEM; 176 177 ar->rx_cmd_buf = usb_alloc_coherent(ar->dev, AR5523_MAX_RXCMDSZ, 178 GFP_KERNEL, 179 &ar->rx_cmd_urb->transfer_dma); 180 if (!ar->rx_cmd_buf) { 181 usb_free_urb(ar->rx_cmd_urb); 182 return -ENOMEM; 183 } 184 return 0; 185 } 186 187 static void ar5523_cancel_rx_cmd(struct ar5523 *ar) 188 { 189 usb_kill_urb(ar->rx_cmd_urb); 190 } 191 192 static void ar5523_free_rx_cmd(struct ar5523 *ar) 193 { 194 usb_free_coherent(ar->dev, AR5523_MAX_RXCMDSZ, 195 ar->rx_cmd_buf, ar->rx_cmd_urb->transfer_dma); 196 usb_free_urb(ar->rx_cmd_urb); 197 } 198 199 static int ar5523_submit_rx_cmd(struct ar5523 *ar) 200 { 201 int error; 202 203 usb_fill_bulk_urb(ar->rx_cmd_urb, ar->dev, 204 ar5523_cmd_rx_pipe(ar->dev), ar->rx_cmd_buf, 205 AR5523_MAX_RXCMDSZ, ar5523_cmd_rx_cb, ar); 206 ar->rx_cmd_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; 207 208 error = usb_submit_urb(ar->rx_cmd_urb, GFP_ATOMIC); 209 if (error) { 210 if (error != -ENODEV) 211 ar5523_err(ar, "error %d when submitting rx urb\n", 212 error); 213 return error; 214 } 215 return 0; 216 } 217 218 /* 219 * Command submitted cb 220 */ 221 static void ar5523_cmd_tx_cb(struct urb *urb) 222 { 223 struct ar5523_tx_cmd *cmd = urb->context; 224 struct ar5523 *ar = cmd->ar; 225 226 if (urb->status) { 227 ar5523_err(ar, "Failed to TX command. Status = %d\n", 228 urb->status); 229 cmd->res = urb->status; 230 complete(&cmd->done); 231 return; 232 } 233 234 if (!(cmd->flags & AR5523_CMD_FLAG_READ)) { 235 cmd->res = 0; 236 complete(&cmd->done); 237 } 238 } 239 240 static int ar5523_cmd(struct ar5523 *ar, u32 code, const void *idata, 241 int ilen, void *odata, int olen, int flags) 242 { 243 struct ar5523_cmd_hdr *hdr; 244 struct ar5523_tx_cmd *cmd = &ar->tx_cmd; 245 int xferlen, error; 246 247 /* always bulk-out a multiple of 4 bytes */ 248 xferlen = (sizeof(struct ar5523_cmd_hdr) + ilen + 3) & ~3; 249 250 hdr = (struct ar5523_cmd_hdr *)cmd->buf_tx; 251 memset(hdr, 0, sizeof(struct ar5523_cmd_hdr)); 252 hdr->len = cpu_to_be32(xferlen); 253 hdr->code = cpu_to_be32(code); 254 hdr->priv = AR5523_CMD_ID; 255 256 if (flags & AR5523_CMD_FLAG_MAGIC) 257 hdr->magic = cpu_to_be32(1 << 24); 258 memcpy(hdr + 1, idata, ilen); 259 260 cmd->odata = odata; 261 cmd->olen = olen; 262 cmd->flags = flags; 263 264 ar5523_dbg(ar, "do cmd %02x\n", code); 265 266 usb_fill_bulk_urb(cmd->urb_tx, ar->dev, ar5523_cmd_tx_pipe(ar->dev), 267 cmd->buf_tx, xferlen, ar5523_cmd_tx_cb, cmd); 268 cmd->urb_tx->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; 269 270 error = usb_submit_urb(cmd->urb_tx, GFP_KERNEL); 271 if (error) { 272 ar5523_err(ar, "could not send command 0x%x, error=%d\n", 273 code, error); 274 return error; 275 } 276 277 if (!wait_for_completion_timeout(&cmd->done, 2 * HZ)) { 278 cmd->odata = NULL; 279 ar5523_err(ar, "timeout waiting for command %02x reply\n", 280 code); 281 cmd->res = -ETIMEDOUT; 282 } 283 return cmd->res; 284 } 285 286 static int ar5523_cmd_write(struct ar5523 *ar, u32 code, const void *data, 287 int len, int flags) 288 { 289 flags &= ~AR5523_CMD_FLAG_READ; 290 return ar5523_cmd(ar, code, data, len, NULL, 0, flags); 291 } 292 293 static int ar5523_cmd_read(struct ar5523 *ar, u32 code, const void *idata, 294 int ilen, void *odata, int olen, int flags) 295 { 296 flags |= AR5523_CMD_FLAG_READ; 297 return ar5523_cmd(ar, code, idata, ilen, odata, olen, flags); 298 } 299 300 static int ar5523_config(struct ar5523 *ar, u32 reg, u32 val) 301 { 302 struct ar5523_write_mac write; 303 int error; 304 305 write.reg = cpu_to_be32(reg); 306 write.len = cpu_to_be32(0); /* 0 = single write */ 307 *(__be32 *)write.data = cpu_to_be32(val); 308 309 error = ar5523_cmd_write(ar, WDCMSG_TARGET_SET_CONFIG, &write, 310 3 * sizeof(u32), 0); 311 if (error != 0) 312 ar5523_err(ar, "could not write register 0x%02x\n", reg); 313 return error; 314 } 315 316 static int ar5523_config_multi(struct ar5523 *ar, u32 reg, const void *data, 317 int len) 318 { 319 struct ar5523_write_mac write; 320 int error; 321 322 write.reg = cpu_to_be32(reg); 323 write.len = cpu_to_be32(len); 324 memcpy(write.data, data, len); 325 326 /* properly handle the case where len is zero (reset) */ 327 error = ar5523_cmd_write(ar, WDCMSG_TARGET_SET_CONFIG, &write, 328 (len == 0) ? sizeof(u32) : 2 * sizeof(u32) + len, 0); 329 if (error != 0) 330 ar5523_err(ar, "could not write %d bytes to register 0x%02x\n", 331 len, reg); 332 return error; 333 } 334 335 static int ar5523_get_status(struct ar5523 *ar, u32 which, void *odata, 336 int olen) 337 { 338 int error; 339 __be32 which_be; 340 341 which_be = cpu_to_be32(which); 342 error = ar5523_cmd_read(ar, WDCMSG_TARGET_GET_STATUS, 343 &which_be, sizeof(which_be), odata, olen, AR5523_CMD_FLAG_MAGIC); 344 if (error != 0) 345 ar5523_err(ar, "could not read EEPROM offset 0x%02x\n", which); 346 return error; 347 } 348 349 static int ar5523_get_capability(struct ar5523 *ar, u32 cap, u32 *val) 350 { 351 int error; 352 __be32 cap_be, val_be; 353 354 cap_be = cpu_to_be32(cap); 355 error = ar5523_cmd_read(ar, WDCMSG_TARGET_GET_CAPABILITY, &cap_be, 356 sizeof(cap_be), &val_be, sizeof(__be32), 357 AR5523_CMD_FLAG_MAGIC); 358 if (error != 0) { 359 ar5523_err(ar, "could not read capability %u\n", cap); 360 return error; 361 } 362 *val = be32_to_cpu(val_be); 363 return error; 364 } 365 366 static int ar5523_get_devcap(struct ar5523 *ar) 367 { 368 #define GETCAP(x) do { \ 369 error = ar5523_get_capability(ar, x, &cap); \ 370 if (error != 0) \ 371 return error; \ 372 ar5523_info(ar, "Cap: " \ 373 "%s=0x%08x\n", #x, cap); \ 374 } while (0) 375 int error; 376 u32 cap; 377 378 /* collect device capabilities */ 379 GETCAP(CAP_TARGET_VERSION); 380 GETCAP(CAP_TARGET_REVISION); 381 GETCAP(CAP_MAC_VERSION); 382 GETCAP(CAP_MAC_REVISION); 383 GETCAP(CAP_PHY_REVISION); 384 GETCAP(CAP_ANALOG_5GHz_REVISION); 385 GETCAP(CAP_ANALOG_2GHz_REVISION); 386 387 GETCAP(CAP_REG_DOMAIN); 388 GETCAP(CAP_REG_CAP_BITS); 389 GETCAP(CAP_WIRELESS_MODES); 390 GETCAP(CAP_CHAN_SPREAD_SUPPORT); 391 GETCAP(CAP_COMPRESS_SUPPORT); 392 GETCAP(CAP_BURST_SUPPORT); 393 GETCAP(CAP_FAST_FRAMES_SUPPORT); 394 GETCAP(CAP_CHAP_TUNING_SUPPORT); 395 GETCAP(CAP_TURBOG_SUPPORT); 396 GETCAP(CAP_TURBO_PRIME_SUPPORT); 397 GETCAP(CAP_DEVICE_TYPE); 398 GETCAP(CAP_WME_SUPPORT); 399 GETCAP(CAP_TOTAL_QUEUES); 400 GETCAP(CAP_CONNECTION_ID_MAX); 401 402 GETCAP(CAP_LOW_5GHZ_CHAN); 403 GETCAP(CAP_HIGH_5GHZ_CHAN); 404 GETCAP(CAP_LOW_2GHZ_CHAN); 405 GETCAP(CAP_HIGH_2GHZ_CHAN); 406 GETCAP(CAP_TWICE_ANTENNAGAIN_5G); 407 GETCAP(CAP_TWICE_ANTENNAGAIN_2G); 408 409 GETCAP(CAP_CIPHER_AES_CCM); 410 GETCAP(CAP_CIPHER_TKIP); 411 GETCAP(CAP_MIC_TKIP); 412 return 0; 413 } 414 415 static int ar5523_set_ledsteady(struct ar5523 *ar, int lednum, int ledmode) 416 { 417 struct ar5523_cmd_ledsteady led; 418 419 led.lednum = cpu_to_be32(lednum); 420 led.ledmode = cpu_to_be32(ledmode); 421 422 ar5523_dbg(ar, "set %s led %s (steady)\n", 423 (lednum == UATH_LED_LINK) ? "link" : "activity", 424 ledmode ? "on" : "off"); 425 return ar5523_cmd_write(ar, WDCMSG_SET_LED_STEADY, &led, sizeof(led), 426 0); 427 } 428 429 static int ar5523_set_rxfilter(struct ar5523 *ar, u32 bits, u32 op) 430 { 431 struct ar5523_cmd_rx_filter rxfilter; 432 433 rxfilter.bits = cpu_to_be32(bits); 434 rxfilter.op = cpu_to_be32(op); 435 436 ar5523_dbg(ar, "setting Rx filter=0x%x flags=0x%x\n", bits, op); 437 return ar5523_cmd_write(ar, WDCMSG_RX_FILTER, &rxfilter, 438 sizeof(rxfilter), 0); 439 } 440 441 static int ar5523_reset_tx_queues(struct ar5523 *ar) 442 { 443 __be32 qid = cpu_to_be32(0); 444 445 ar5523_dbg(ar, "resetting Tx queue\n"); 446 return ar5523_cmd_write(ar, WDCMSG_RELEASE_TX_QUEUE, 447 &qid, sizeof(qid), 0); 448 } 449 450 static int ar5523_set_chan(struct ar5523 *ar) 451 { 452 struct ieee80211_conf *conf = &ar->hw->conf; 453 454 struct ar5523_cmd_reset reset; 455 456 memset(&reset, 0, sizeof(reset)); 457 reset.flags |= cpu_to_be32(UATH_CHAN_2GHZ); 458 reset.flags |= cpu_to_be32(UATH_CHAN_OFDM); 459 reset.freq = cpu_to_be32(conf->chandef.chan->center_freq); 460 reset.maxrdpower = cpu_to_be32(50); /* XXX */ 461 reset.channelchange = cpu_to_be32(1); 462 reset.keeprccontent = cpu_to_be32(0); 463 464 ar5523_dbg(ar, "set chan flags 0x%x freq %d\n", 465 be32_to_cpu(reset.flags), 466 conf->chandef.chan->center_freq); 467 return ar5523_cmd_write(ar, WDCMSG_RESET, &reset, sizeof(reset), 0); 468 } 469 470 static int ar5523_queue_init(struct ar5523 *ar) 471 { 472 struct ar5523_cmd_txq_setup qinfo; 473 474 ar5523_dbg(ar, "setting up Tx queue\n"); 475 qinfo.qid = cpu_to_be32(0); 476 qinfo.len = cpu_to_be32(sizeof(qinfo.attr)); 477 qinfo.attr.priority = cpu_to_be32(0); /* XXX */ 478 qinfo.attr.aifs = cpu_to_be32(3); 479 qinfo.attr.logcwmin = cpu_to_be32(4); 480 qinfo.attr.logcwmax = cpu_to_be32(10); 481 qinfo.attr.bursttime = cpu_to_be32(0); 482 qinfo.attr.mode = cpu_to_be32(0); 483 qinfo.attr.qflags = cpu_to_be32(1); /* XXX? */ 484 return ar5523_cmd_write(ar, WDCMSG_SETUP_TX_QUEUE, &qinfo, 485 sizeof(qinfo), 0); 486 } 487 488 static int ar5523_switch_chan(struct ar5523 *ar) 489 { 490 int error; 491 492 error = ar5523_set_chan(ar); 493 if (error) { 494 ar5523_err(ar, "could not set chan, error %d\n", error); 495 goto out_err; 496 } 497 498 /* reset Tx rings */ 499 error = ar5523_reset_tx_queues(ar); 500 if (error) { 501 ar5523_err(ar, "could not reset Tx queues, error %d\n", 502 error); 503 goto out_err; 504 } 505 /* set Tx rings WME properties */ 506 error = ar5523_queue_init(ar); 507 if (error) 508 ar5523_err(ar, "could not init wme, error %d\n", error); 509 510 out_err: 511 return error; 512 } 513 514 static void ar5523_rx_data_put(struct ar5523 *ar, 515 struct ar5523_rx_data *data) 516 { 517 unsigned long flags; 518 spin_lock_irqsave(&ar->rx_data_list_lock, flags); 519 list_move(&data->list, &ar->rx_data_free); 520 spin_unlock_irqrestore(&ar->rx_data_list_lock, flags); 521 } 522 523 static void ar5523_data_rx_cb(struct urb *urb) 524 { 525 struct ar5523_rx_data *data = urb->context; 526 struct ar5523 *ar = data->ar; 527 struct ar5523_rx_desc *desc; 528 struct ar5523_chunk *chunk; 529 struct ieee80211_hw *hw = ar->hw; 530 struct ieee80211_rx_status *rx_status; 531 u32 rxlen; 532 int usblen = urb->actual_length; 533 int hdrlen, pad; 534 535 ar5523_dbg(ar, "%s\n", __func__); 536 /* sync/async unlink faults aren't errors */ 537 if (urb->status) { 538 if (urb->status != -ESHUTDOWN) 539 ar5523_err(ar, "%s: USB err: %d\n", __func__, 540 urb->status); 541 goto skip; 542 } 543 544 if (usblen < AR5523_MIN_RXBUFSZ) { 545 ar5523_err(ar, "RX: wrong xfer size (usblen=%d)\n", usblen); 546 goto skip; 547 } 548 549 chunk = (struct ar5523_chunk *) data->skb->data; 550 551 if (((chunk->flags & UATH_CFLAGS_FINAL) == 0) || 552 chunk->seqnum != 0) { 553 ar5523_dbg(ar, "RX: No final flag. s: %d f: %02x l: %d\n", 554 chunk->seqnum, chunk->flags, 555 be16_to_cpu(chunk->length)); 556 goto skip; 557 } 558 559 /* Rx descriptor is located at the end, 32-bit aligned */ 560 desc = (struct ar5523_rx_desc *) 561 (data->skb->data + usblen - sizeof(struct ar5523_rx_desc)); 562 563 rxlen = be32_to_cpu(desc->len); 564 if (rxlen > ar->rxbufsz) { 565 ar5523_dbg(ar, "RX: Bad descriptor (len=%d)\n", 566 be32_to_cpu(desc->len)); 567 goto skip; 568 } 569 570 if (!rxlen) { 571 ar5523_dbg(ar, "RX: rxlen is 0\n"); 572 goto skip; 573 } 574 575 if (be32_to_cpu(desc->status) != 0) { 576 ar5523_dbg(ar, "Bad RX status (0x%x len = %d). Skip\n", 577 be32_to_cpu(desc->status), be32_to_cpu(desc->len)); 578 goto skip; 579 } 580 581 skb_reserve(data->skb, sizeof(*chunk)); 582 skb_put(data->skb, rxlen - sizeof(struct ar5523_rx_desc)); 583 584 hdrlen = ieee80211_get_hdrlen_from_skb(data->skb); 585 if (!IS_ALIGNED(hdrlen, 4)) { 586 ar5523_dbg(ar, "eek, alignment workaround activated\n"); 587 pad = ALIGN(hdrlen, 4) - hdrlen; 588 memmove(data->skb->data + pad, data->skb->data, hdrlen); 589 skb_pull(data->skb, pad); 590 skb_put(data->skb, pad); 591 } 592 593 rx_status = IEEE80211_SKB_RXCB(data->skb); 594 memset(rx_status, 0, sizeof(*rx_status)); 595 rx_status->freq = be32_to_cpu(desc->channel); 596 rx_status->band = hw->conf.chandef.chan->band; 597 rx_status->signal = -95 + be32_to_cpu(desc->rssi); 598 599 ieee80211_rx_irqsafe(hw, data->skb); 600 data->skb = NULL; 601 602 skip: 603 if (data->skb) { 604 dev_kfree_skb_irq(data->skb); 605 data->skb = NULL; 606 } 607 608 ar5523_rx_data_put(ar, data); 609 if (atomic_inc_return(&ar->rx_data_free_cnt) >= 610 AR5523_RX_DATA_REFILL_COUNT && 611 test_bit(AR5523_HW_UP, &ar->flags)) 612 queue_work(ar->wq, &ar->rx_refill_work); 613 } 614 615 static void ar5523_rx_refill_work(struct work_struct *work) 616 { 617 struct ar5523 *ar = container_of(work, struct ar5523, rx_refill_work); 618 struct ar5523_rx_data *data; 619 unsigned long flags; 620 int error; 621 622 ar5523_dbg(ar, "%s\n", __func__); 623 do { 624 spin_lock_irqsave(&ar->rx_data_list_lock, flags); 625 626 if (!list_empty(&ar->rx_data_free)) 627 data = (struct ar5523_rx_data *) ar->rx_data_free.next; 628 else 629 data = NULL; 630 spin_unlock_irqrestore(&ar->rx_data_list_lock, flags); 631 632 if (!data) 633 goto done; 634 635 data->skb = alloc_skb(ar->rxbufsz, GFP_KERNEL); 636 if (!data->skb) { 637 ar5523_err(ar, "could not allocate rx skbuff\n"); 638 return; 639 } 640 641 usb_fill_bulk_urb(data->urb, ar->dev, 642 ar5523_data_rx_pipe(ar->dev), data->skb->data, 643 ar->rxbufsz, ar5523_data_rx_cb, data); 644 645 spin_lock_irqsave(&ar->rx_data_list_lock, flags); 646 list_move(&data->list, &ar->rx_data_used); 647 spin_unlock_irqrestore(&ar->rx_data_list_lock, flags); 648 atomic_dec(&ar->rx_data_free_cnt); 649 650 error = usb_submit_urb(data->urb, GFP_KERNEL); 651 if (error) { 652 kfree_skb(data->skb); 653 if (error != -ENODEV) 654 ar5523_err(ar, "Err sending rx data urb %d\n", 655 error); 656 ar5523_rx_data_put(ar, data); 657 atomic_inc(&ar->rx_data_free_cnt); 658 return; 659 } 660 661 } while (true); 662 done: 663 return; 664 } 665 666 static void ar5523_cancel_rx_bufs(struct ar5523 *ar) 667 { 668 struct ar5523_rx_data *data; 669 unsigned long flags; 670 671 do { 672 spin_lock_irqsave(&ar->rx_data_list_lock, flags); 673 if (!list_empty(&ar->rx_data_used)) 674 data = (struct ar5523_rx_data *) ar->rx_data_used.next; 675 else 676 data = NULL; 677 spin_unlock_irqrestore(&ar->rx_data_list_lock, flags); 678 679 if (!data) 680 break; 681 682 usb_kill_urb(data->urb); 683 list_move(&data->list, &ar->rx_data_free); 684 atomic_inc(&ar->rx_data_free_cnt); 685 } while (data); 686 } 687 688 static void ar5523_free_rx_bufs(struct ar5523 *ar) 689 { 690 struct ar5523_rx_data *data; 691 692 ar5523_cancel_rx_bufs(ar); 693 while (!list_empty(&ar->rx_data_free)) { 694 data = (struct ar5523_rx_data *) ar->rx_data_free.next; 695 list_del(&data->list); 696 usb_free_urb(data->urb); 697 } 698 } 699 700 static int ar5523_alloc_rx_bufs(struct ar5523 *ar) 701 { 702 int i; 703 704 for (i = 0; i < AR5523_RX_DATA_COUNT; i++) { 705 struct ar5523_rx_data *data = &ar->rx_data[i]; 706 707 data->ar = ar; 708 data->urb = usb_alloc_urb(0, GFP_KERNEL); 709 if (!data->urb) { 710 ar5523_err(ar, "could not allocate rx data urb\n"); 711 goto err; 712 } 713 list_add_tail(&data->list, &ar->rx_data_free); 714 atomic_inc(&ar->rx_data_free_cnt); 715 } 716 return 0; 717 718 err: 719 ar5523_free_rx_bufs(ar); 720 return -ENOMEM; 721 } 722 723 static void ar5523_data_tx_pkt_put(struct ar5523 *ar) 724 { 725 atomic_dec(&ar->tx_nr_total); 726 if (!atomic_dec_return(&ar->tx_nr_pending)) { 727 del_timer(&ar->tx_wd_timer); 728 wake_up(&ar->tx_flush_waitq); 729 } 730 731 if (atomic_read(&ar->tx_nr_total) < AR5523_TX_DATA_RESTART_COUNT) { 732 ar5523_dbg(ar, "restart tx queue\n"); 733 ieee80211_wake_queues(ar->hw); 734 } 735 } 736 737 static void ar5523_data_tx_cb(struct urb *urb) 738 { 739 struct sk_buff *skb = urb->context; 740 struct ieee80211_tx_info *txi = IEEE80211_SKB_CB(skb); 741 struct ar5523_tx_data *data = (struct ar5523_tx_data *) 742 txi->driver_data; 743 struct ar5523 *ar = data->ar; 744 unsigned long flags; 745 746 ar5523_dbg(ar, "data tx urb completed: %d\n", urb->status); 747 748 spin_lock_irqsave(&ar->tx_data_list_lock, flags); 749 list_del(&data->list); 750 spin_unlock_irqrestore(&ar->tx_data_list_lock, flags); 751 752 if (urb->status) { 753 ar5523_dbg(ar, "%s: urb status: %d\n", __func__, urb->status); 754 ar5523_data_tx_pkt_put(ar); 755 ieee80211_free_txskb(ar->hw, skb); 756 } else { 757 skb_pull(skb, sizeof(struct ar5523_tx_desc) + sizeof(__be32)); 758 ieee80211_tx_status_irqsafe(ar->hw, skb); 759 } 760 usb_free_urb(urb); 761 } 762 763 static void ar5523_tx(struct ieee80211_hw *hw, 764 struct ieee80211_tx_control *control, 765 struct sk_buff *skb) 766 { 767 struct ieee80211_tx_info *txi = IEEE80211_SKB_CB(skb); 768 struct ar5523_tx_data *data = (struct ar5523_tx_data *) 769 txi->driver_data; 770 struct ar5523 *ar = hw->priv; 771 unsigned long flags; 772 773 ar5523_dbg(ar, "tx called\n"); 774 if (atomic_inc_return(&ar->tx_nr_total) >= AR5523_TX_DATA_COUNT) { 775 ar5523_dbg(ar, "tx queue full\n"); 776 ar5523_dbg(ar, "stop queues (tot %d pend %d)\n", 777 atomic_read(&ar->tx_nr_total), 778 atomic_read(&ar->tx_nr_pending)); 779 ieee80211_stop_queues(hw); 780 } 781 782 data->skb = skb; 783 784 spin_lock_irqsave(&ar->tx_data_list_lock, flags); 785 list_add_tail(&data->list, &ar->tx_queue_pending); 786 spin_unlock_irqrestore(&ar->tx_data_list_lock, flags); 787 788 ieee80211_queue_work(ar->hw, &ar->tx_work); 789 } 790 791 static void ar5523_tx_work_locked(struct ar5523 *ar) 792 { 793 struct ar5523_tx_data *data; 794 struct ar5523_tx_desc *desc; 795 struct ar5523_chunk *chunk; 796 struct ieee80211_tx_info *txi; 797 struct urb *urb; 798 struct sk_buff *skb; 799 int error = 0, paylen; 800 u32 txqid; 801 unsigned long flags; 802 803 BUILD_BUG_ON(sizeof(struct ar5523_tx_data) > 804 IEEE80211_TX_INFO_DRIVER_DATA_SIZE); 805 806 ar5523_dbg(ar, "%s\n", __func__); 807 do { 808 spin_lock_irqsave(&ar->tx_data_list_lock, flags); 809 if (!list_empty(&ar->tx_queue_pending)) { 810 data = (struct ar5523_tx_data *) 811 ar->tx_queue_pending.next; 812 list_del(&data->list); 813 } else 814 data = NULL; 815 spin_unlock_irqrestore(&ar->tx_data_list_lock, flags); 816 817 if (!data) 818 break; 819 820 skb = data->skb; 821 txqid = 0; 822 txi = IEEE80211_SKB_CB(skb); 823 paylen = skb->len; 824 urb = usb_alloc_urb(0, GFP_KERNEL); 825 if (!urb) { 826 ar5523_err(ar, "Failed to allocate TX urb\n"); 827 ieee80211_free_txskb(ar->hw, skb); 828 continue; 829 } 830 831 data->ar = ar; 832 data->urb = urb; 833 834 desc = (struct ar5523_tx_desc *)skb_push(skb, sizeof(*desc)); 835 chunk = (struct ar5523_chunk *)skb_push(skb, sizeof(*chunk)); 836 837 chunk->seqnum = 0; 838 chunk->flags = UATH_CFLAGS_FINAL; 839 chunk->length = cpu_to_be16(skb->len); 840 841 desc->msglen = cpu_to_be32(skb->len); 842 desc->msgid = AR5523_DATA_ID; 843 desc->buflen = cpu_to_be32(paylen); 844 desc->type = cpu_to_be32(WDCMSG_SEND); 845 desc->flags = cpu_to_be32(UATH_TX_NOTIFY); 846 847 if (test_bit(AR5523_CONNECTED, &ar->flags)) 848 desc->connid = cpu_to_be32(AR5523_ID_BSS); 849 else 850 desc->connid = cpu_to_be32(AR5523_ID_BROADCAST); 851 852 if (txi->flags & IEEE80211_TX_CTL_USE_MINRATE) 853 txqid |= UATH_TXQID_MINRATE; 854 855 desc->txqid = cpu_to_be32(txqid); 856 857 urb->transfer_flags = URB_ZERO_PACKET; 858 usb_fill_bulk_urb(urb, ar->dev, ar5523_data_tx_pipe(ar->dev), 859 skb->data, skb->len, ar5523_data_tx_cb, skb); 860 861 spin_lock_irqsave(&ar->tx_data_list_lock, flags); 862 list_add_tail(&data->list, &ar->tx_queue_submitted); 863 spin_unlock_irqrestore(&ar->tx_data_list_lock, flags); 864 mod_timer(&ar->tx_wd_timer, jiffies + AR5523_TX_WD_TIMEOUT); 865 atomic_inc(&ar->tx_nr_pending); 866 867 ar5523_dbg(ar, "TX Frame (%d pending)\n", 868 atomic_read(&ar->tx_nr_pending)); 869 error = usb_submit_urb(urb, GFP_KERNEL); 870 if (error) { 871 ar5523_err(ar, "error %d when submitting tx urb\n", 872 error); 873 spin_lock_irqsave(&ar->tx_data_list_lock, flags); 874 list_del(&data->list); 875 spin_unlock_irqrestore(&ar->tx_data_list_lock, flags); 876 atomic_dec(&ar->tx_nr_pending); 877 ar5523_data_tx_pkt_put(ar); 878 usb_free_urb(urb); 879 ieee80211_free_txskb(ar->hw, skb); 880 } 881 } while (true); 882 } 883 884 static void ar5523_tx_work(struct work_struct *work) 885 { 886 struct ar5523 *ar = container_of(work, struct ar5523, tx_work); 887 888 ar5523_dbg(ar, "%s\n", __func__); 889 mutex_lock(&ar->mutex); 890 ar5523_tx_work_locked(ar); 891 mutex_unlock(&ar->mutex); 892 } 893 894 static void ar5523_tx_wd_timer(unsigned long arg) 895 { 896 struct ar5523 *ar = (struct ar5523 *) arg; 897 898 ar5523_dbg(ar, "TX watchdog timer triggered\n"); 899 ieee80211_queue_work(ar->hw, &ar->tx_wd_work); 900 } 901 902 static void ar5523_tx_wd_work(struct work_struct *work) 903 { 904 struct ar5523 *ar = container_of(work, struct ar5523, tx_wd_work); 905 906 /* Occasionally the TX queues stop responding. The only way to 907 * recover seems to be to reset the dongle. 908 */ 909 910 mutex_lock(&ar->mutex); 911 ar5523_err(ar, "TX queue stuck (tot %d pend %d)\n", 912 atomic_read(&ar->tx_nr_total), 913 atomic_read(&ar->tx_nr_pending)); 914 915 ar5523_err(ar, "Will restart dongle.\n"); 916 ar5523_cmd_write(ar, WDCMSG_TARGET_RESET, NULL, 0, 0); 917 mutex_unlock(&ar->mutex); 918 } 919 920 static void ar5523_flush_tx(struct ar5523 *ar) 921 { 922 ar5523_tx_work_locked(ar); 923 924 /* Don't waste time trying to flush if USB is disconnected */ 925 if (test_bit(AR5523_USB_DISCONNECTED, &ar->flags)) 926 return; 927 if (!wait_event_timeout(ar->tx_flush_waitq, 928 !atomic_read(&ar->tx_nr_pending), AR5523_FLUSH_TIMEOUT)) 929 ar5523_err(ar, "flush timeout (tot %d pend %d)\n", 930 atomic_read(&ar->tx_nr_total), 931 atomic_read(&ar->tx_nr_pending)); 932 } 933 934 static void ar5523_free_tx_cmd(struct ar5523 *ar) 935 { 936 struct ar5523_tx_cmd *cmd = &ar->tx_cmd; 937 938 usb_free_coherent(ar->dev, AR5523_MAX_RXCMDSZ, cmd->buf_tx, 939 cmd->urb_tx->transfer_dma); 940 usb_free_urb(cmd->urb_tx); 941 } 942 943 static int ar5523_alloc_tx_cmd(struct ar5523 *ar) 944 { 945 struct ar5523_tx_cmd *cmd = &ar->tx_cmd; 946 947 cmd->ar = ar; 948 init_completion(&cmd->done); 949 950 cmd->urb_tx = usb_alloc_urb(0, GFP_KERNEL); 951 if (!cmd->urb_tx) { 952 ar5523_err(ar, "could not allocate urb\n"); 953 return -ENOMEM; 954 } 955 cmd->buf_tx = usb_alloc_coherent(ar->dev, AR5523_MAX_TXCMDSZ, 956 GFP_KERNEL, 957 &cmd->urb_tx->transfer_dma); 958 if (!cmd->buf_tx) { 959 usb_free_urb(cmd->urb_tx); 960 return -ENOMEM; 961 } 962 return 0; 963 } 964 965 /* 966 * This function is called periodically (every second) when associated to 967 * query device statistics. 968 */ 969 static void ar5523_stat_work(struct work_struct *work) 970 { 971 struct ar5523 *ar = container_of(work, struct ar5523, stat_work.work); 972 int error; 973 974 ar5523_dbg(ar, "%s\n", __func__); 975 mutex_lock(&ar->mutex); 976 977 /* 978 * Send request for statistics asynchronously once a second. This 979 * seems to be important. Throughput is a lot better if this is done. 980 */ 981 error = ar5523_cmd_write(ar, WDCMSG_TARGET_GET_STATS, NULL, 0, 0); 982 if (error) 983 ar5523_err(ar, "could not query stats, error %d\n", error); 984 mutex_unlock(&ar->mutex); 985 ieee80211_queue_delayed_work(ar->hw, &ar->stat_work, HZ); 986 } 987 988 /* 989 * Interface routines to the mac80211 stack. 990 */ 991 static int ar5523_start(struct ieee80211_hw *hw) 992 { 993 struct ar5523 *ar = hw->priv; 994 int error; 995 __be32 val; 996 997 ar5523_dbg(ar, "start called\n"); 998 999 mutex_lock(&ar->mutex); 1000 val = cpu_to_be32(0); 1001 ar5523_cmd_write(ar, WDCMSG_BIND, &val, sizeof(val), 0); 1002 1003 /* set MAC address */ 1004 ar5523_config_multi(ar, CFG_MAC_ADDR, &ar->hw->wiphy->perm_addr, 1005 ETH_ALEN); 1006 1007 /* XXX honor net80211 state */ 1008 ar5523_config(ar, CFG_RATE_CONTROL_ENABLE, 0x00000001); 1009 ar5523_config(ar, CFG_DIVERSITY_CTL, 0x00000001); 1010 ar5523_config(ar, CFG_ABOLT, 0x0000003f); 1011 ar5523_config(ar, CFG_WME_ENABLED, 0x00000000); 1012 1013 ar5523_config(ar, CFG_SERVICE_TYPE, 1); 1014 ar5523_config(ar, CFG_TP_SCALE, 0x00000000); 1015 ar5523_config(ar, CFG_TPC_HALF_DBM5, 0x0000003c); 1016 ar5523_config(ar, CFG_TPC_HALF_DBM2, 0x0000003c); 1017 ar5523_config(ar, CFG_OVERRD_TX_POWER, 0x00000000); 1018 ar5523_config(ar, CFG_GMODE_PROTECTION, 0x00000000); 1019 ar5523_config(ar, CFG_GMODE_PROTECT_RATE_INDEX, 0x00000003); 1020 ar5523_config(ar, CFG_PROTECTION_TYPE, 0x00000000); 1021 ar5523_config(ar, CFG_MODE_CTS, 0x00000002); 1022 1023 error = ar5523_cmd_read(ar, WDCMSG_TARGET_START, NULL, 0, 1024 &val, sizeof(val), AR5523_CMD_FLAG_MAGIC); 1025 if (error) { 1026 ar5523_dbg(ar, "could not start target, error %d\n", error); 1027 goto err; 1028 } 1029 ar5523_dbg(ar, "WDCMSG_TARGET_START returns handle: 0x%x\n", 1030 be32_to_cpu(val)); 1031 1032 ar5523_switch_chan(ar); 1033 1034 val = cpu_to_be32(TARGET_DEVICE_AWAKE); 1035 ar5523_cmd_write(ar, WDCMSG_SET_PWR_MODE, &val, sizeof(val), 0); 1036 /* XXX? check */ 1037 ar5523_cmd_write(ar, WDCMSG_RESET_KEY_CACHE, NULL, 0, 0); 1038 1039 set_bit(AR5523_HW_UP, &ar->flags); 1040 queue_work(ar->wq, &ar->rx_refill_work); 1041 1042 /* enable Rx */ 1043 ar5523_set_rxfilter(ar, 0, UATH_FILTER_OP_INIT); 1044 ar5523_set_rxfilter(ar, 1045 UATH_FILTER_RX_UCAST | UATH_FILTER_RX_MCAST | 1046 UATH_FILTER_RX_BCAST | UATH_FILTER_RX_BEACON, 1047 UATH_FILTER_OP_SET); 1048 1049 ar5523_set_ledsteady(ar, UATH_LED_ACTIVITY, UATH_LED_ON); 1050 ar5523_dbg(ar, "start OK\n"); 1051 1052 err: 1053 mutex_unlock(&ar->mutex); 1054 return error; 1055 } 1056 1057 static void ar5523_stop(struct ieee80211_hw *hw) 1058 { 1059 struct ar5523 *ar = hw->priv; 1060 1061 ar5523_dbg(ar, "stop called\n"); 1062 1063 cancel_delayed_work_sync(&ar->stat_work); 1064 mutex_lock(&ar->mutex); 1065 clear_bit(AR5523_HW_UP, &ar->flags); 1066 1067 ar5523_set_ledsteady(ar, UATH_LED_LINK, UATH_LED_OFF); 1068 ar5523_set_ledsteady(ar, UATH_LED_ACTIVITY, UATH_LED_OFF); 1069 1070 ar5523_cmd_write(ar, WDCMSG_TARGET_STOP, NULL, 0, 0); 1071 1072 del_timer_sync(&ar->tx_wd_timer); 1073 cancel_work_sync(&ar->tx_wd_work); 1074 cancel_work_sync(&ar->rx_refill_work); 1075 ar5523_cancel_rx_bufs(ar); 1076 mutex_unlock(&ar->mutex); 1077 } 1078 1079 static int ar5523_set_rts_threshold(struct ieee80211_hw *hw, u32 value) 1080 { 1081 struct ar5523 *ar = hw->priv; 1082 int ret; 1083 1084 ar5523_dbg(ar, "set_rts_threshold called\n"); 1085 mutex_lock(&ar->mutex); 1086 1087 ret = ar5523_config(ar, CFG_USER_RTS_THRESHOLD, value); 1088 1089 mutex_unlock(&ar->mutex); 1090 return ret; 1091 } 1092 1093 static void ar5523_flush(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 1094 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, 0x160b), /* 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