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 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 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 too 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 } 170 171 skip: 172 ar5523_submit_rx_cmd(ar); 173 } 174 175 static 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 } 190 191 static void ar5523_cancel_rx_cmd(struct ar5523 *ar) 192 { 193 usb_kill_urb(ar->rx_cmd_urb); 194 } 195 196 static 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 } 202 203 static 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 */ 225 static 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 } 243 244 static int ar5523_cmd(struct ar5523 *ar, u32 code, const void *idata, 245 int ilen, void *odata, int olen, int flags) 246 { 247 struct ar5523_cmd_hdr *hdr; 248 struct ar5523_tx_cmd *cmd = &ar->tx_cmd; 249 int xferlen, error; 250 251 /* always bulk-out a multiple of 4 bytes */ 252 xferlen = (sizeof(struct ar5523_cmd_hdr) + ilen + 3) & ~3; 253 254 hdr = (struct ar5523_cmd_hdr *)cmd->buf_tx; 255 memset(hdr, 0, sizeof(struct ar5523_cmd_hdr)); 256 hdr->len = cpu_to_be32(xferlen); 257 hdr->code = cpu_to_be32(code); 258 hdr->priv = AR5523_CMD_ID; 259 260 if (flags & AR5523_CMD_FLAG_MAGIC) 261 hdr->magic = cpu_to_be32(1 << 24); 262 if (ilen) 263 memcpy(hdr + 1, idata, ilen); 264 265 cmd->odata = odata; 266 cmd->olen = olen; 267 cmd->flags = flags; 268 269 ar5523_dbg(ar, "do cmd %02x\n", code); 270 271 usb_fill_bulk_urb(cmd->urb_tx, ar->dev, ar5523_cmd_tx_pipe(ar->dev), 272 cmd->buf_tx, xferlen, ar5523_cmd_tx_cb, cmd); 273 cmd->urb_tx->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; 274 275 error = usb_submit_urb(cmd->urb_tx, GFP_KERNEL); 276 if (error) { 277 ar5523_err(ar, "could not send command 0x%x, error=%d\n", 278 code, error); 279 return error; 280 } 281 282 if (!wait_for_completion_timeout(&cmd->done, 2 * HZ)) { 283 cmd->odata = NULL; 284 ar5523_err(ar, "timeout waiting for command %02x reply\n", 285 code); 286 cmd->res = -ETIMEDOUT; 287 } 288 return cmd->res; 289 } 290 291 static int ar5523_cmd_write(struct ar5523 *ar, u32 code, const void *data, 292 int len, int flags) 293 { 294 flags &= ~AR5523_CMD_FLAG_READ; 295 return ar5523_cmd(ar, code, data, len, NULL, 0, flags); 296 } 297 298 static int ar5523_cmd_read(struct ar5523 *ar, u32 code, const void *idata, 299 int ilen, void *odata, int olen, int flags) 300 { 301 flags |= AR5523_CMD_FLAG_READ; 302 return ar5523_cmd(ar, code, idata, ilen, odata, olen, flags); 303 } 304 305 static int ar5523_config(struct ar5523 *ar, u32 reg, u32 val) 306 { 307 struct ar5523_write_mac write; 308 int error; 309 310 write.reg = cpu_to_be32(reg); 311 write.len = cpu_to_be32(0); /* 0 = single write */ 312 *(__be32 *)write.data = cpu_to_be32(val); 313 314 error = ar5523_cmd_write(ar, WDCMSG_TARGET_SET_CONFIG, &write, 315 3 * sizeof(u32), 0); 316 if (error != 0) 317 ar5523_err(ar, "could not write register 0x%02x\n", reg); 318 return error; 319 } 320 321 static int ar5523_config_multi(struct ar5523 *ar, u32 reg, const void *data, 322 int len) 323 { 324 struct ar5523_write_mac write; 325 int error; 326 327 write.reg = cpu_to_be32(reg); 328 write.len = cpu_to_be32(len); 329 memcpy(write.data, data, len); 330 331 /* properly handle the case where len is zero (reset) */ 332 error = ar5523_cmd_write(ar, WDCMSG_TARGET_SET_CONFIG, &write, 333 (len == 0) ? sizeof(u32) : 2 * sizeof(u32) + len, 0); 334 if (error != 0) 335 ar5523_err(ar, "could not write %d bytes to register 0x%02x\n", 336 len, reg); 337 return error; 338 } 339 340 static int ar5523_get_status(struct ar5523 *ar, u32 which, void *odata, 341 int olen) 342 { 343 int error; 344 __be32 which_be; 345 346 which_be = cpu_to_be32(which); 347 error = ar5523_cmd_read(ar, WDCMSG_TARGET_GET_STATUS, 348 &which_be, sizeof(which_be), odata, olen, AR5523_CMD_FLAG_MAGIC); 349 if (error != 0) 350 ar5523_err(ar, "could not read EEPROM offset 0x%02x\n", which); 351 return error; 352 } 353 354 static int ar5523_get_capability(struct ar5523 *ar, u32 cap, u32 *val) 355 { 356 int error; 357 __be32 cap_be, val_be; 358 359 cap_be = cpu_to_be32(cap); 360 error = ar5523_cmd_read(ar, WDCMSG_TARGET_GET_CAPABILITY, &cap_be, 361 sizeof(cap_be), &val_be, sizeof(__be32), 362 AR5523_CMD_FLAG_MAGIC); 363 if (error != 0) { 364 ar5523_err(ar, "could not read capability %u\n", cap); 365 return error; 366 } 367 *val = be32_to_cpu(val_be); 368 return error; 369 } 370 371 static int ar5523_get_devcap(struct ar5523 *ar) 372 { 373 #define GETCAP(x) do { \ 374 error = ar5523_get_capability(ar, x, &cap); \ 375 if (error != 0) \ 376 return error; \ 377 ar5523_info(ar, "Cap: " \ 378 "%s=0x%08x\n", #x, cap); \ 379 } while (0) 380 int error; 381 u32 cap; 382 383 /* collect device capabilities */ 384 GETCAP(CAP_TARGET_VERSION); 385 GETCAP(CAP_TARGET_REVISION); 386 GETCAP(CAP_MAC_VERSION); 387 GETCAP(CAP_MAC_REVISION); 388 GETCAP(CAP_PHY_REVISION); 389 GETCAP(CAP_ANALOG_5GHz_REVISION); 390 GETCAP(CAP_ANALOG_2GHz_REVISION); 391 392 GETCAP(CAP_REG_DOMAIN); 393 GETCAP(CAP_REG_CAP_BITS); 394 GETCAP(CAP_WIRELESS_MODES); 395 GETCAP(CAP_CHAN_SPREAD_SUPPORT); 396 GETCAP(CAP_COMPRESS_SUPPORT); 397 GETCAP(CAP_BURST_SUPPORT); 398 GETCAP(CAP_FAST_FRAMES_SUPPORT); 399 GETCAP(CAP_CHAP_TUNING_SUPPORT); 400 GETCAP(CAP_TURBOG_SUPPORT); 401 GETCAP(CAP_TURBO_PRIME_SUPPORT); 402 GETCAP(CAP_DEVICE_TYPE); 403 GETCAP(CAP_WME_SUPPORT); 404 GETCAP(CAP_TOTAL_QUEUES); 405 GETCAP(CAP_CONNECTION_ID_MAX); 406 407 GETCAP(CAP_LOW_5GHZ_CHAN); 408 GETCAP(CAP_HIGH_5GHZ_CHAN); 409 GETCAP(CAP_LOW_2GHZ_CHAN); 410 GETCAP(CAP_HIGH_2GHZ_CHAN); 411 GETCAP(CAP_TWICE_ANTENNAGAIN_5G); 412 GETCAP(CAP_TWICE_ANTENNAGAIN_2G); 413 414 GETCAP(CAP_CIPHER_AES_CCM); 415 GETCAP(CAP_CIPHER_TKIP); 416 GETCAP(CAP_MIC_TKIP); 417 return 0; 418 } 419 420 static int ar5523_set_ledsteady(struct ar5523 *ar, int lednum, int ledmode) 421 { 422 struct ar5523_cmd_ledsteady led; 423 424 led.lednum = cpu_to_be32(lednum); 425 led.ledmode = cpu_to_be32(ledmode); 426 427 ar5523_dbg(ar, "set %s led %s (steady)\n", 428 (lednum == UATH_LED_LINK) ? "link" : "activity", 429 ledmode ? "on" : "off"); 430 return ar5523_cmd_write(ar, WDCMSG_SET_LED_STEADY, &led, sizeof(led), 431 0); 432 } 433 434 static int ar5523_set_rxfilter(struct ar5523 *ar, u32 bits, u32 op) 435 { 436 struct ar5523_cmd_rx_filter rxfilter; 437 438 rxfilter.bits = cpu_to_be32(bits); 439 rxfilter.op = cpu_to_be32(op); 440 441 ar5523_dbg(ar, "setting Rx filter=0x%x flags=0x%x\n", bits, op); 442 return ar5523_cmd_write(ar, WDCMSG_RX_FILTER, &rxfilter, 443 sizeof(rxfilter), 0); 444 } 445 446 static int ar5523_reset_tx_queues(struct ar5523 *ar) 447 { 448 __be32 qid = cpu_to_be32(0); 449 450 ar5523_dbg(ar, "resetting Tx queue\n"); 451 return ar5523_cmd_write(ar, WDCMSG_RELEASE_TX_QUEUE, 452 &qid, sizeof(qid), 0); 453 } 454 455 static int ar5523_set_chan(struct ar5523 *ar) 456 { 457 struct ieee80211_conf *conf = &ar->hw->conf; 458 459 struct ar5523_cmd_reset reset; 460 461 memset(&reset, 0, sizeof(reset)); 462 reset.flags |= cpu_to_be32(UATH_CHAN_2GHZ); 463 reset.flags |= cpu_to_be32(UATH_CHAN_OFDM); 464 reset.freq = cpu_to_be32(conf->chandef.chan->center_freq); 465 reset.maxrdpower = cpu_to_be32(50); /* XXX */ 466 reset.channelchange = cpu_to_be32(1); 467 reset.keeprccontent = cpu_to_be32(0); 468 469 ar5523_dbg(ar, "set chan flags 0x%x freq %d\n", 470 be32_to_cpu(reset.flags), 471 conf->chandef.chan->center_freq); 472 return ar5523_cmd_write(ar, WDCMSG_RESET, &reset, sizeof(reset), 0); 473 } 474 475 static int ar5523_queue_init(struct ar5523 *ar) 476 { 477 struct ar5523_cmd_txq_setup qinfo; 478 479 ar5523_dbg(ar, "setting up Tx queue\n"); 480 qinfo.qid = cpu_to_be32(0); 481 qinfo.len = cpu_to_be32(sizeof(qinfo.attr)); 482 qinfo.attr.priority = cpu_to_be32(0); /* XXX */ 483 qinfo.attr.aifs = cpu_to_be32(3); 484 qinfo.attr.logcwmin = cpu_to_be32(4); 485 qinfo.attr.logcwmax = cpu_to_be32(10); 486 qinfo.attr.bursttime = cpu_to_be32(0); 487 qinfo.attr.mode = cpu_to_be32(0); 488 qinfo.attr.qflags = cpu_to_be32(1); /* XXX? */ 489 return ar5523_cmd_write(ar, WDCMSG_SETUP_TX_QUEUE, &qinfo, 490 sizeof(qinfo), 0); 491 } 492 493 static int ar5523_switch_chan(struct ar5523 *ar) 494 { 495 int error; 496 497 error = ar5523_set_chan(ar); 498 if (error) { 499 ar5523_err(ar, "could not set chan, error %d\n", error); 500 goto out_err; 501 } 502 503 /* reset Tx rings */ 504 error = ar5523_reset_tx_queues(ar); 505 if (error) { 506 ar5523_err(ar, "could not reset Tx queues, error %d\n", 507 error); 508 goto out_err; 509 } 510 /* set Tx rings WME properties */ 511 error = ar5523_queue_init(ar); 512 if (error) 513 ar5523_err(ar, "could not init wme, error %d\n", error); 514 515 out_err: 516 return error; 517 } 518 519 static void ar5523_rx_data_put(struct ar5523 *ar, 520 struct ar5523_rx_data *data) 521 { 522 unsigned long flags; 523 spin_lock_irqsave(&ar->rx_data_list_lock, flags); 524 list_move(&data->list, &ar->rx_data_free); 525 spin_unlock_irqrestore(&ar->rx_data_list_lock, flags); 526 } 527 528 static void ar5523_data_rx_cb(struct urb *urb) 529 { 530 struct ar5523_rx_data *data = urb->context; 531 struct ar5523 *ar = data->ar; 532 struct ar5523_rx_desc *desc; 533 struct ar5523_chunk *chunk; 534 struct ieee80211_hw *hw = ar->hw; 535 struct ieee80211_rx_status *rx_status; 536 u32 rxlen; 537 int usblen = urb->actual_length; 538 int hdrlen, pad; 539 540 ar5523_dbg(ar, "%s\n", __func__); 541 /* sync/async unlink faults aren't errors */ 542 if (urb->status) { 543 if (urb->status != -ESHUTDOWN) 544 ar5523_err(ar, "%s: USB err: %d\n", __func__, 545 urb->status); 546 goto skip; 547 } 548 549 if (usblen < AR5523_MIN_RXBUFSZ) { 550 ar5523_err(ar, "RX: wrong xfer size (usblen=%d)\n", usblen); 551 goto skip; 552 } 553 554 chunk = (struct ar5523_chunk *) data->skb->data; 555 556 if (((chunk->flags & UATH_CFLAGS_FINAL) == 0) || 557 chunk->seqnum != 0) { 558 ar5523_dbg(ar, "RX: No final flag. s: %d f: %02x l: %d\n", 559 chunk->seqnum, chunk->flags, 560 be16_to_cpu(chunk->length)); 561 goto skip; 562 } 563 564 /* Rx descriptor is located at the end, 32-bit aligned */ 565 desc = (struct ar5523_rx_desc *) 566 (data->skb->data + usblen - sizeof(struct ar5523_rx_desc)); 567 568 rxlen = be32_to_cpu(desc->len); 569 if (rxlen > ar->rxbufsz) { 570 ar5523_dbg(ar, "RX: Bad descriptor (len=%d)\n", 571 be32_to_cpu(desc->len)); 572 goto skip; 573 } 574 575 if (!rxlen) { 576 ar5523_dbg(ar, "RX: rxlen is 0\n"); 577 goto skip; 578 } 579 580 if (be32_to_cpu(desc->status) != 0) { 581 ar5523_dbg(ar, "Bad RX status (0x%x len = %d). Skip\n", 582 be32_to_cpu(desc->status), be32_to_cpu(desc->len)); 583 goto skip; 584 } 585 586 skb_reserve(data->skb, sizeof(*chunk)); 587 skb_put(data->skb, rxlen - sizeof(struct ar5523_rx_desc)); 588 589 hdrlen = ieee80211_get_hdrlen_from_skb(data->skb); 590 if (!IS_ALIGNED(hdrlen, 4)) { 591 ar5523_dbg(ar, "eek, alignment workaround activated\n"); 592 pad = ALIGN(hdrlen, 4) - hdrlen; 593 memmove(data->skb->data + pad, data->skb->data, hdrlen); 594 skb_pull(data->skb, pad); 595 skb_put(data->skb, pad); 596 } 597 598 rx_status = IEEE80211_SKB_RXCB(data->skb); 599 memset(rx_status, 0, sizeof(*rx_status)); 600 rx_status->freq = be32_to_cpu(desc->channel); 601 rx_status->band = hw->conf.chandef.chan->band; 602 rx_status->signal = -95 + be32_to_cpu(desc->rssi); 603 604 ieee80211_rx_irqsafe(hw, data->skb); 605 data->skb = NULL; 606 607 skip: 608 if (data->skb) { 609 dev_kfree_skb_irq(data->skb); 610 data->skb = NULL; 611 } 612 613 ar5523_rx_data_put(ar, data); 614 if (atomic_inc_return(&ar->rx_data_free_cnt) >= 615 AR5523_RX_DATA_REFILL_COUNT && 616 test_bit(AR5523_HW_UP, &ar->flags)) 617 queue_work(ar->wq, &ar->rx_refill_work); 618 } 619 620 static void ar5523_rx_refill_work(struct work_struct *work) 621 { 622 struct ar5523 *ar = container_of(work, struct ar5523, rx_refill_work); 623 struct ar5523_rx_data *data; 624 unsigned long flags; 625 int error; 626 627 ar5523_dbg(ar, "%s\n", __func__); 628 do { 629 spin_lock_irqsave(&ar->rx_data_list_lock, flags); 630 631 if (!list_empty(&ar->rx_data_free)) 632 data = (struct ar5523_rx_data *) ar->rx_data_free.next; 633 else 634 data = NULL; 635 spin_unlock_irqrestore(&ar->rx_data_list_lock, flags); 636 637 if (!data) 638 goto done; 639 640 data->skb = alloc_skb(ar->rxbufsz, GFP_KERNEL); 641 if (!data->skb) { 642 ar5523_err(ar, "could not allocate rx skbuff\n"); 643 return; 644 } 645 646 usb_fill_bulk_urb(data->urb, ar->dev, 647 ar5523_data_rx_pipe(ar->dev), data->skb->data, 648 ar->rxbufsz, ar5523_data_rx_cb, data); 649 650 spin_lock_irqsave(&ar->rx_data_list_lock, flags); 651 list_move(&data->list, &ar->rx_data_used); 652 spin_unlock_irqrestore(&ar->rx_data_list_lock, flags); 653 atomic_dec(&ar->rx_data_free_cnt); 654 655 error = usb_submit_urb(data->urb, GFP_KERNEL); 656 if (error) { 657 kfree_skb(data->skb); 658 if (error != -ENODEV) 659 ar5523_err(ar, "Err sending rx data urb %d\n", 660 error); 661 ar5523_rx_data_put(ar, data); 662 atomic_inc(&ar->rx_data_free_cnt); 663 return; 664 } 665 666 } while (true); 667 done: 668 return; 669 } 670 671 static void ar5523_cancel_rx_bufs(struct ar5523 *ar) 672 { 673 struct ar5523_rx_data *data; 674 unsigned long flags; 675 676 do { 677 spin_lock_irqsave(&ar->rx_data_list_lock, flags); 678 if (!list_empty(&ar->rx_data_used)) 679 data = (struct ar5523_rx_data *) ar->rx_data_used.next; 680 else 681 data = NULL; 682 spin_unlock_irqrestore(&ar->rx_data_list_lock, flags); 683 684 if (!data) 685 break; 686 687 usb_kill_urb(data->urb); 688 list_move(&data->list, &ar->rx_data_free); 689 atomic_inc(&ar->rx_data_free_cnt); 690 } while (data); 691 } 692 693 static void ar5523_free_rx_bufs(struct ar5523 *ar) 694 { 695 struct ar5523_rx_data *data; 696 697 ar5523_cancel_rx_bufs(ar); 698 while (!list_empty(&ar->rx_data_free)) { 699 data = (struct ar5523_rx_data *) ar->rx_data_free.next; 700 list_del(&data->list); 701 usb_free_urb(data->urb); 702 } 703 } 704 705 static int ar5523_alloc_rx_bufs(struct ar5523 *ar) 706 { 707 int i; 708 709 for (i = 0; i < AR5523_RX_DATA_COUNT; i++) { 710 struct ar5523_rx_data *data = &ar->rx_data[i]; 711 712 data->ar = ar; 713 data->urb = usb_alloc_urb(0, GFP_KERNEL); 714 if (!data->urb) 715 goto err; 716 list_add_tail(&data->list, &ar->rx_data_free); 717 atomic_inc(&ar->rx_data_free_cnt); 718 } 719 return 0; 720 721 err: 722 ar5523_free_rx_bufs(ar); 723 return -ENOMEM; 724 } 725 726 static void ar5523_data_tx_pkt_put(struct ar5523 *ar) 727 { 728 atomic_dec(&ar->tx_nr_total); 729 if (!atomic_dec_return(&ar->tx_nr_pending)) { 730 del_timer(&ar->tx_wd_timer); 731 wake_up(&ar->tx_flush_waitq); 732 } 733 734 if (atomic_read(&ar->tx_nr_total) < AR5523_TX_DATA_RESTART_COUNT) { 735 ar5523_dbg(ar, "restart tx queue\n"); 736 ieee80211_wake_queues(ar->hw); 737 } 738 } 739 740 static void ar5523_data_tx_cb(struct urb *urb) 741 { 742 struct sk_buff *skb = urb->context; 743 struct ieee80211_tx_info *txi = IEEE80211_SKB_CB(skb); 744 struct ar5523_tx_data *data = (struct ar5523_tx_data *) 745 txi->driver_data; 746 struct ar5523 *ar = data->ar; 747 unsigned long flags; 748 749 ar5523_dbg(ar, "data tx urb completed: %d\n", urb->status); 750 751 spin_lock_irqsave(&ar->tx_data_list_lock, flags); 752 list_del(&data->list); 753 spin_unlock_irqrestore(&ar->tx_data_list_lock, flags); 754 755 if (urb->status) { 756 ar5523_dbg(ar, "%s: urb status: %d\n", __func__, urb->status); 757 ar5523_data_tx_pkt_put(ar); 758 ieee80211_free_txskb(ar->hw, skb); 759 } else { 760 skb_pull(skb, sizeof(struct ar5523_tx_desc) + sizeof(__be32)); 761 ieee80211_tx_status_irqsafe(ar->hw, skb); 762 } 763 usb_free_urb(urb); 764 } 765 766 static void ar5523_tx(struct ieee80211_hw *hw, 767 struct ieee80211_tx_control *control, 768 struct sk_buff *skb) 769 { 770 struct ieee80211_tx_info *txi = IEEE80211_SKB_CB(skb); 771 struct ar5523_tx_data *data = (struct ar5523_tx_data *) 772 txi->driver_data; 773 struct ar5523 *ar = hw->priv; 774 unsigned long flags; 775 776 ar5523_dbg(ar, "tx called\n"); 777 if (atomic_inc_return(&ar->tx_nr_total) >= AR5523_TX_DATA_COUNT) { 778 ar5523_dbg(ar, "tx queue full\n"); 779 ar5523_dbg(ar, "stop queues (tot %d pend %d)\n", 780 atomic_read(&ar->tx_nr_total), 781 atomic_read(&ar->tx_nr_pending)); 782 ieee80211_stop_queues(hw); 783 } 784 785 spin_lock_irqsave(&ar->tx_data_list_lock, flags); 786 list_add_tail(&data->list, &ar->tx_queue_pending); 787 spin_unlock_irqrestore(&ar->tx_data_list_lock, flags); 788 789 ieee80211_queue_work(ar->hw, &ar->tx_work); 790 } 791 792 static void ar5523_tx_work_locked(struct ar5523 *ar) 793 { 794 struct ar5523_tx_data *data; 795 struct ar5523_tx_desc *desc; 796 struct ar5523_chunk *chunk; 797 struct ieee80211_tx_info *txi; 798 struct urb *urb; 799 struct sk_buff *skb; 800 int error = 0, paylen; 801 u32 txqid; 802 unsigned long flags; 803 804 BUILD_BUG_ON(sizeof(struct ar5523_tx_data) > 805 IEEE80211_TX_INFO_DRIVER_DATA_SIZE); 806 807 ar5523_dbg(ar, "%s\n", __func__); 808 do { 809 spin_lock_irqsave(&ar->tx_data_list_lock, flags); 810 if (!list_empty(&ar->tx_queue_pending)) { 811 data = (struct ar5523_tx_data *) 812 ar->tx_queue_pending.next; 813 list_del(&data->list); 814 } else 815 data = NULL; 816 spin_unlock_irqrestore(&ar->tx_data_list_lock, flags); 817 818 if (!data) 819 break; 820 821 txi = container_of((void *)data, struct ieee80211_tx_info, 822 driver_data); 823 txqid = 0; 824 825 skb = container_of((void *)txi, struct sk_buff, cb); 826 paylen = skb->len; 827 828 urb = usb_alloc_urb(0, GFP_KERNEL); 829 if (!urb) { 830 ieee80211_free_txskb(ar->hw, skb); 831 continue; 832 } 833 834 data->ar = ar; 835 data->urb = urb; 836 837 desc = skb_push(skb, sizeof(*desc)); 838 chunk = skb_push(skb, sizeof(*chunk)); 839 840 chunk->seqnum = 0; 841 chunk->flags = UATH_CFLAGS_FINAL; 842 chunk->length = cpu_to_be16(skb->len); 843 844 desc->msglen = cpu_to_be32(skb->len); 845 desc->msgid = AR5523_DATA_ID; 846 desc->buflen = cpu_to_be32(paylen); 847 desc->type = cpu_to_be32(WDCMSG_SEND); 848 desc->flags = cpu_to_be32(UATH_TX_NOTIFY); 849 850 if (test_bit(AR5523_CONNECTED, &ar->flags)) 851 desc->connid = cpu_to_be32(AR5523_ID_BSS); 852 else 853 desc->connid = cpu_to_be32(AR5523_ID_BROADCAST); 854 855 if (txi->flags & IEEE80211_TX_CTL_USE_MINRATE) 856 txqid |= UATH_TXQID_MINRATE; 857 858 desc->txqid = cpu_to_be32(txqid); 859 860 urb->transfer_flags = URB_ZERO_PACKET; 861 usb_fill_bulk_urb(urb, ar->dev, ar5523_data_tx_pipe(ar->dev), 862 skb->data, skb->len, ar5523_data_tx_cb, skb); 863 864 spin_lock_irqsave(&ar->tx_data_list_lock, flags); 865 list_add_tail(&data->list, &ar->tx_queue_submitted); 866 spin_unlock_irqrestore(&ar->tx_data_list_lock, flags); 867 mod_timer(&ar->tx_wd_timer, jiffies + AR5523_TX_WD_TIMEOUT); 868 atomic_inc(&ar->tx_nr_pending); 869 870 ar5523_dbg(ar, "TX Frame (%d pending)\n", 871 atomic_read(&ar->tx_nr_pending)); 872 error = usb_submit_urb(urb, GFP_KERNEL); 873 if (error) { 874 ar5523_err(ar, "error %d when submitting tx urb\n", 875 error); 876 spin_lock_irqsave(&ar->tx_data_list_lock, flags); 877 list_del(&data->list); 878 spin_unlock_irqrestore(&ar->tx_data_list_lock, flags); 879 atomic_dec(&ar->tx_nr_pending); 880 ar5523_data_tx_pkt_put(ar); 881 usb_free_urb(urb); 882 ieee80211_free_txskb(ar->hw, skb); 883 } 884 } while (true); 885 } 886 887 static void ar5523_tx_work(struct work_struct *work) 888 { 889 struct ar5523 *ar = container_of(work, struct ar5523, tx_work); 890 891 ar5523_dbg(ar, "%s\n", __func__); 892 mutex_lock(&ar->mutex); 893 ar5523_tx_work_locked(ar); 894 mutex_unlock(&ar->mutex); 895 } 896 897 static void ar5523_tx_wd_timer(struct timer_list *t) 898 { 899 struct ar5523 *ar = from_timer(ar, t, tx_wd_timer); 900 901 ar5523_dbg(ar, "TX watchdog timer triggered\n"); 902 ieee80211_queue_work(ar->hw, &ar->tx_wd_work); 903 } 904 905 static void ar5523_tx_wd_work(struct work_struct *work) 906 { 907 struct ar5523 *ar = container_of(work, struct ar5523, tx_wd_work); 908 909 /* Occasionally the TX queues stop responding. The only way to 910 * recover seems to be to reset the dongle. 911 */ 912 913 mutex_lock(&ar->mutex); 914 ar5523_err(ar, "TX queue stuck (tot %d pend %d)\n", 915 atomic_read(&ar->tx_nr_total), 916 atomic_read(&ar->tx_nr_pending)); 917 918 ar5523_err(ar, "Will restart dongle.\n"); 919 ar5523_cmd_write(ar, WDCMSG_TARGET_RESET, NULL, 0, 0); 920 mutex_unlock(&ar->mutex); 921 } 922 923 static void ar5523_flush_tx(struct ar5523 *ar) 924 { 925 ar5523_tx_work_locked(ar); 926 927 /* Don't waste time trying to flush if USB is disconnected */ 928 if (test_bit(AR5523_USB_DISCONNECTED, &ar->flags)) 929 return; 930 if (!wait_event_timeout(ar->tx_flush_waitq, 931 !atomic_read(&ar->tx_nr_pending), AR5523_FLUSH_TIMEOUT)) 932 ar5523_err(ar, "flush timeout (tot %d pend %d)\n", 933 atomic_read(&ar->tx_nr_total), 934 atomic_read(&ar->tx_nr_pending)); 935 } 936 937 static void ar5523_free_tx_cmd(struct ar5523 *ar) 938 { 939 struct ar5523_tx_cmd *cmd = &ar->tx_cmd; 940 941 usb_free_coherent(ar->dev, AR5523_MAX_RXCMDSZ, cmd->buf_tx, 942 cmd->urb_tx->transfer_dma); 943 usb_free_urb(cmd->urb_tx); 944 } 945 946 static int ar5523_alloc_tx_cmd(struct ar5523 *ar) 947 { 948 struct ar5523_tx_cmd *cmd = &ar->tx_cmd; 949 950 cmd->ar = ar; 951 init_completion(&cmd->done); 952 953 cmd->urb_tx = usb_alloc_urb(0, GFP_KERNEL); 954 if (!cmd->urb_tx) 955 return -ENOMEM; 956 cmd->buf_tx = usb_alloc_coherent(ar->dev, AR5523_MAX_TXCMDSZ, 957 GFP_KERNEL, 958 &cmd->urb_tx->transfer_dma); 959 if (!cmd->buf_tx) { 960 usb_free_urb(cmd->urb_tx); 961 return -ENOMEM; 962 } 963 return 0; 964 } 965 966 /* 967 * This function is called periodically (every second) when associated to 968 * query device statistics. 969 */ 970 static void ar5523_stat_work(struct work_struct *work) 971 { 972 struct ar5523 *ar = container_of(work, struct ar5523, stat_work.work); 973 int error; 974 975 ar5523_dbg(ar, "%s\n", __func__); 976 mutex_lock(&ar->mutex); 977 978 /* 979 * Send request for statistics asynchronously once a second. This 980 * seems to be important. Throughput is a lot better if this is done. 981 */ 982 error = ar5523_cmd_write(ar, WDCMSG_TARGET_GET_STATS, NULL, 0, 0); 983 if (error) 984 ar5523_err(ar, "could not query stats, error %d\n", error); 985 mutex_unlock(&ar->mutex); 986 ieee80211_queue_delayed_work(ar->hw, &ar->stat_work, HZ); 987 } 988 989 /* 990 * Interface routines to the mac80211 stack. 991 */ 992 static int ar5523_start(struct ieee80211_hw *hw) 993 { 994 struct ar5523 *ar = hw->priv; 995 int error; 996 __be32 val; 997 998 ar5523_dbg(ar, "start called\n"); 999 1000 mutex_lock(&ar->mutex); 1001 val = cpu_to_be32(0); 1002 ar5523_cmd_write(ar, WDCMSG_BIND, &val, sizeof(val), 0); 1003 1004 /* set MAC address */ 1005 ar5523_config_multi(ar, CFG_MAC_ADDR, &ar->hw->wiphy->perm_addr, 1006 ETH_ALEN); 1007 1008 /* XXX honor net80211 state */ 1009 ar5523_config(ar, CFG_RATE_CONTROL_ENABLE, 0x00000001); 1010 ar5523_config(ar, CFG_DIVERSITY_CTL, 0x00000001); 1011 ar5523_config(ar, CFG_ABOLT, 0x0000003f); 1012 ar5523_config(ar, CFG_WME_ENABLED, 0x00000000); 1013 1014 ar5523_config(ar, CFG_SERVICE_TYPE, 1); 1015 ar5523_config(ar, CFG_TP_SCALE, 0x00000000); 1016 ar5523_config(ar, CFG_TPC_HALF_DBM5, 0x0000003c); 1017 ar5523_config(ar, CFG_TPC_HALF_DBM2, 0x0000003c); 1018 ar5523_config(ar, CFG_OVERRD_TX_POWER, 0x00000000); 1019 ar5523_config(ar, CFG_GMODE_PROTECTION, 0x00000000); 1020 ar5523_config(ar, CFG_GMODE_PROTECT_RATE_INDEX, 0x00000003); 1021 ar5523_config(ar, CFG_PROTECTION_TYPE, 0x00000000); 1022 ar5523_config(ar, CFG_MODE_CTS, 0x00000002); 1023 1024 error = ar5523_cmd_read(ar, WDCMSG_TARGET_START, NULL, 0, 1025 &val, sizeof(val), AR5523_CMD_FLAG_MAGIC); 1026 if (error) { 1027 ar5523_dbg(ar, "could not start target, error %d\n", error); 1028 goto err; 1029 } 1030 ar5523_dbg(ar, "WDCMSG_TARGET_START returns handle: 0x%x\n", 1031 be32_to_cpu(val)); 1032 1033 ar5523_switch_chan(ar); 1034 1035 val = cpu_to_be32(TARGET_DEVICE_AWAKE); 1036 ar5523_cmd_write(ar, WDCMSG_SET_PWR_MODE, &val, sizeof(val), 0); 1037 /* XXX? check */ 1038 ar5523_cmd_write(ar, WDCMSG_RESET_KEY_CACHE, NULL, 0, 0); 1039 1040 set_bit(AR5523_HW_UP, &ar->flags); 1041 queue_work(ar->wq, &ar->rx_refill_work); 1042 1043 /* enable Rx */ 1044 ar5523_set_rxfilter(ar, 0, UATH_FILTER_OP_INIT); 1045 ar5523_set_rxfilter(ar, 1046 UATH_FILTER_RX_UCAST | UATH_FILTER_RX_MCAST | 1047 UATH_FILTER_RX_BCAST | UATH_FILTER_RX_BEACON, 1048 UATH_FILTER_OP_SET); 1049 1050 ar5523_set_ledsteady(ar, UATH_LED_ACTIVITY, UATH_LED_ON); 1051 ar5523_dbg(ar, "start OK\n"); 1052 1053 err: 1054 mutex_unlock(&ar->mutex); 1055 return error; 1056 } 1057 1058 static void ar5523_stop(struct ieee80211_hw *hw) 1059 { 1060 struct ar5523 *ar = hw->priv; 1061 1062 ar5523_dbg(ar, "stop called\n"); 1063 1064 cancel_delayed_work_sync(&ar->stat_work); 1065 mutex_lock(&ar->mutex); 1066 clear_bit(AR5523_HW_UP, &ar->flags); 1067 1068 ar5523_set_ledsteady(ar, UATH_LED_LINK, UATH_LED_OFF); 1069 ar5523_set_ledsteady(ar, UATH_LED_ACTIVITY, UATH_LED_OFF); 1070 1071 ar5523_cmd_write(ar, WDCMSG_TARGET_STOP, NULL, 0, 0); 1072 1073 del_timer_sync(&ar->tx_wd_timer); 1074 cancel_work_sync(&ar->tx_wd_work); 1075 cancel_work_sync(&ar->rx_refill_work); 1076 ar5523_cancel_rx_bufs(ar); 1077 mutex_unlock(&ar->mutex); 1078 } 1079 1080 static int ar5523_set_rts_threshold(struct ieee80211_hw *hw, u32 value) 1081 { 1082 struct ar5523 *ar = hw->priv; 1083 int ret; 1084 1085 ar5523_dbg(ar, "set_rts_threshold called\n"); 1086 mutex_lock(&ar->mutex); 1087 1088 ret = ar5523_config(ar, CFG_USER_RTS_THRESHOLD, value); 1089 1090 mutex_unlock(&ar->mutex); 1091 return ret; 1092 } 1093 1094 static void ar5523_flush(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 1095 u32 queues, bool drop) 1096 { 1097 struct ar5523 *ar = hw->priv; 1098 1099 ar5523_dbg(ar, "flush called\n"); 1100 ar5523_flush_tx(ar); 1101 } 1102 1103 static int ar5523_add_interface(struct ieee80211_hw *hw, 1104 struct ieee80211_vif *vif) 1105 { 1106 struct ar5523 *ar = hw->priv; 1107 1108 ar5523_dbg(ar, "add interface called\n"); 1109 1110 if (ar->vif) { 1111 ar5523_dbg(ar, "invalid add_interface\n"); 1112 return -EOPNOTSUPP; 1113 } 1114 1115 switch (vif->type) { 1116 case NL80211_IFTYPE_STATION: 1117 ar->vif = vif; 1118 break; 1119 default: 1120 return -EOPNOTSUPP; 1121 } 1122 return 0; 1123 } 1124 1125 static void ar5523_remove_interface(struct ieee80211_hw *hw, 1126 struct ieee80211_vif *vif) 1127 { 1128 struct ar5523 *ar = hw->priv; 1129 1130 ar5523_dbg(ar, "remove interface called\n"); 1131 ar->vif = NULL; 1132 } 1133 1134 static int ar5523_hwconfig(struct ieee80211_hw *hw, u32 changed) 1135 { 1136 struct ar5523 *ar = hw->priv; 1137 1138 ar5523_dbg(ar, "config called\n"); 1139 mutex_lock(&ar->mutex); 1140 if (changed & IEEE80211_CONF_CHANGE_CHANNEL) { 1141 ar5523_dbg(ar, "Do channel switch\n"); 1142 ar5523_flush_tx(ar); 1143 ar5523_switch_chan(ar); 1144 } 1145 mutex_unlock(&ar->mutex); 1146 return 0; 1147 } 1148 1149 static int ar5523_get_wlan_mode(struct ar5523 *ar, 1150 struct ieee80211_bss_conf *bss_conf) 1151 { 1152 struct ieee80211_supported_band *band; 1153 int bit; 1154 struct ieee80211_sta *sta; 1155 u32 sta_rate_set; 1156 1157 band = ar->hw->wiphy->bands[ar->hw->conf.chandef.chan->band]; 1158 sta = ieee80211_find_sta(ar->vif, bss_conf->bssid); 1159 if (!sta) { 1160 ar5523_info(ar, "STA not found!\n"); 1161 return WLAN_MODE_11b; 1162 } 1163 sta_rate_set = sta->deflink.supp_rates[ar->hw->conf.chandef.chan->band]; 1164 1165 for (bit = 0; bit < band->n_bitrates; bit++) { 1166 if (sta_rate_set & 1) { 1167 int rate = band->bitrates[bit].bitrate; 1168 switch (rate) { 1169 case 60: 1170 case 90: 1171 case 120: 1172 case 180: 1173 case 240: 1174 case 360: 1175 case 480: 1176 case 540: 1177 return WLAN_MODE_11g; 1178 } 1179 } 1180 sta_rate_set >>= 1; 1181 } 1182 return WLAN_MODE_11b; 1183 } 1184 1185 static void ar5523_create_rateset(struct ar5523 *ar, 1186 struct ieee80211_bss_conf *bss_conf, 1187 struct ar5523_cmd_rateset *rs, 1188 bool basic) 1189 { 1190 struct ieee80211_supported_band *band; 1191 struct ieee80211_sta *sta; 1192 int bit, i = 0; 1193 u32 sta_rate_set, basic_rate_set; 1194 1195 sta = ieee80211_find_sta(ar->vif, bss_conf->bssid); 1196 basic_rate_set = bss_conf->basic_rates; 1197 if (!sta) { 1198 ar5523_info(ar, "STA not found. Cannot set rates\n"); 1199 sta_rate_set = bss_conf->basic_rates; 1200 } else 1201 sta_rate_set = sta->deflink.supp_rates[ar->hw->conf.chandef.chan->band]; 1202 1203 ar5523_dbg(ar, "sta rate_set = %08x\n", sta_rate_set); 1204 1205 band = ar->hw->wiphy->bands[ar->hw->conf.chandef.chan->band]; 1206 for (bit = 0; bit < band->n_bitrates; bit++) { 1207 BUG_ON(i >= AR5523_MAX_NRATES); 1208 ar5523_dbg(ar, "Considering rate %d : %d\n", 1209 band->bitrates[bit].hw_value, sta_rate_set & 1); 1210 if (sta_rate_set & 1) { 1211 rs->set[i] = band->bitrates[bit].hw_value; 1212 if (basic_rate_set & 1 && basic) 1213 rs->set[i] |= 0x80; 1214 i++; 1215 } 1216 sta_rate_set >>= 1; 1217 basic_rate_set >>= 1; 1218 } 1219 1220 rs->length = i; 1221 } 1222 1223 static int ar5523_set_basic_rates(struct ar5523 *ar, 1224 struct ieee80211_bss_conf *bss) 1225 { 1226 struct ar5523_cmd_rates rates; 1227 1228 memset(&rates, 0, sizeof(rates)); 1229 rates.connid = cpu_to_be32(2); /* XXX */ 1230 rates.size = cpu_to_be32(sizeof(struct ar5523_cmd_rateset)); 1231 ar5523_create_rateset(ar, bss, &rates.rateset, true); 1232 1233 return ar5523_cmd_write(ar, WDCMSG_SET_BASIC_RATE, &rates, 1234 sizeof(rates), 0); 1235 } 1236 1237 static int ar5523_create_connection(struct ar5523 *ar, 1238 struct ieee80211_vif *vif, 1239 struct ieee80211_bss_conf *bss) 1240 { 1241 struct ar5523_cmd_create_connection create; 1242 int wlan_mode; 1243 1244 memset(&create, 0, sizeof(create)); 1245 create.connid = cpu_to_be32(2); 1246 create.bssid = cpu_to_be32(0); 1247 /* XXX packed or not? */ 1248 create.size = cpu_to_be32(sizeof(struct ar5523_cmd_rateset)); 1249 1250 ar5523_create_rateset(ar, bss, &create.connattr.rateset, false); 1251 1252 wlan_mode = ar5523_get_wlan_mode(ar, bss); 1253 create.connattr.wlanmode = cpu_to_be32(wlan_mode); 1254 1255 return ar5523_cmd_write(ar, WDCMSG_CREATE_CONNECTION, &create, 1256 sizeof(create), 0); 1257 } 1258 1259 static int ar5523_write_associd(struct ar5523 *ar, 1260 struct ieee80211_bss_conf *bss) 1261 { 1262 struct ar5523_cmd_set_associd associd; 1263 1264 memset(&associd, 0, sizeof(associd)); 1265 associd.defaultrateix = cpu_to_be32(0); /* XXX */ 1266 associd.associd = cpu_to_be32(bss->aid); 1267 associd.timoffset = cpu_to_be32(0x3b); /* XXX */ 1268 memcpy(associd.bssid, bss->bssid, ETH_ALEN); 1269 return ar5523_cmd_write(ar, WDCMSG_WRITE_ASSOCID, &associd, 1270 sizeof(associd), 0); 1271 } 1272 1273 static void ar5523_bss_info_changed(struct ieee80211_hw *hw, 1274 struct ieee80211_vif *vif, 1275 struct ieee80211_bss_conf *bss, 1276 u32 changed) 1277 { 1278 struct ar5523 *ar = hw->priv; 1279 int error; 1280 1281 ar5523_dbg(ar, "bss_info_changed called\n"); 1282 mutex_lock(&ar->mutex); 1283 1284 if (!(changed & BSS_CHANGED_ASSOC)) 1285 goto out_unlock; 1286 1287 if (bss->assoc) { 1288 error = ar5523_create_connection(ar, vif, bss); 1289 if (error) { 1290 ar5523_err(ar, "could not create connection\n"); 1291 goto out_unlock; 1292 } 1293 1294 error = ar5523_set_basic_rates(ar, bss); 1295 if (error) { 1296 ar5523_err(ar, "could not set negotiated rate set\n"); 1297 goto out_unlock; 1298 } 1299 1300 error = ar5523_write_associd(ar, bss); 1301 if (error) { 1302 ar5523_err(ar, "could not set association\n"); 1303 goto out_unlock; 1304 } 1305 1306 /* turn link LED on */ 1307 ar5523_set_ledsteady(ar, UATH_LED_LINK, UATH_LED_ON); 1308 set_bit(AR5523_CONNECTED, &ar->flags); 1309 ieee80211_queue_delayed_work(hw, &ar->stat_work, HZ); 1310 1311 } else { 1312 cancel_delayed_work(&ar->stat_work); 1313 clear_bit(AR5523_CONNECTED, &ar->flags); 1314 ar5523_set_ledsteady(ar, UATH_LED_LINK, UATH_LED_OFF); 1315 } 1316 1317 out_unlock: 1318 mutex_unlock(&ar->mutex); 1319 1320 } 1321 1322 #define AR5523_SUPPORTED_FILTERS (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 = NL80211_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[NL80211_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 = kzalloc(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 txblock->flags = cpu_to_be32(AR5523_WRITE_BLOCK); 1516 txblock->total = cpu_to_be32(fw->size); 1517 1518 offset = 0; 1519 len = fw->size; 1520 while (len > 0) { 1521 int mlen = min(len, AR5523_MAX_FWBLOCK_SIZE); 1522 1523 txblock->remain = cpu_to_be32(len - mlen); 1524 txblock->len = cpu_to_be32(mlen); 1525 1526 /* send firmware block meta-data */ 1527 error = usb_bulk_msg(dev, ar5523_cmd_tx_pipe(dev), 1528 txblock, sizeof(*txblock), &foolen, 1529 AR5523_CMD_TIMEOUT); 1530 if (error) { 1531 dev_err(&dev->dev, 1532 "could not send firmware block info\n"); 1533 goto out_free_fwbuf; 1534 } 1535 1536 /* send firmware block data */ 1537 memcpy(fwbuf, fw->data + offset, mlen); 1538 error = usb_bulk_msg(dev, ar5523_data_tx_pipe(dev), 1539 fwbuf, mlen, &foolen, 1540 AR5523_DATA_TIMEOUT); 1541 if (error) { 1542 dev_err(&dev->dev, 1543 "could not send firmware block data\n"); 1544 goto out_free_fwbuf; 1545 } 1546 1547 /* wait for ack from firmware */ 1548 error = usb_bulk_msg(dev, ar5523_cmd_rx_pipe(dev), 1549 rxblock, sizeof(*rxblock), &foolen, 1550 AR5523_CMD_TIMEOUT); 1551 if (error) { 1552 dev_err(&dev->dev, 1553 "could not read firmware answer\n"); 1554 goto out_free_fwbuf; 1555 } 1556 1557 len -= mlen; 1558 offset += mlen; 1559 } 1560 1561 /* 1562 * Set the error to -ENXIO to make sure we continue probing for 1563 * a driver. 1564 */ 1565 error = -ENXIO; 1566 1567 out_free_fwbuf: 1568 kfree(fwbuf); 1569 out_free_rxblock: 1570 kfree(rxblock); 1571 out_free_txblock: 1572 kfree(txblock); 1573 out: 1574 release_firmware(fw); 1575 return error; 1576 } 1577 1578 static int ar5523_probe(struct usb_interface *intf, 1579 const struct usb_device_id *id) 1580 { 1581 struct usb_device *dev = interface_to_usbdev(intf); 1582 struct ieee80211_hw *hw; 1583 struct ar5523 *ar; 1584 int error = -ENOMEM; 1585 1586 /* 1587 * Load firmware if the device requires it. This will return 1588 * -ENXIO on success and we'll get called back afer the usb 1589 * id changes to indicate that the firmware is present. 1590 */ 1591 if (id->driver_info & AR5523_FLAG_PRE_FIRMWARE) 1592 return ar5523_load_firmware(dev); 1593 1594 1595 hw = ieee80211_alloc_hw(sizeof(*ar), &ar5523_ops); 1596 if (!hw) 1597 goto out; 1598 SET_IEEE80211_DEV(hw, &intf->dev); 1599 1600 ar = hw->priv; 1601 ar->hw = hw; 1602 ar->dev = dev; 1603 mutex_init(&ar->mutex); 1604 1605 INIT_DELAYED_WORK(&ar->stat_work, ar5523_stat_work); 1606 timer_setup(&ar->tx_wd_timer, ar5523_tx_wd_timer, 0); 1607 INIT_WORK(&ar->tx_wd_work, ar5523_tx_wd_work); 1608 INIT_WORK(&ar->tx_work, ar5523_tx_work); 1609 INIT_LIST_HEAD(&ar->tx_queue_pending); 1610 INIT_LIST_HEAD(&ar->tx_queue_submitted); 1611 spin_lock_init(&ar->tx_data_list_lock); 1612 atomic_set(&ar->tx_nr_total, 0); 1613 atomic_set(&ar->tx_nr_pending, 0); 1614 init_waitqueue_head(&ar->tx_flush_waitq); 1615 1616 atomic_set(&ar->rx_data_free_cnt, 0); 1617 INIT_WORK(&ar->rx_refill_work, ar5523_rx_refill_work); 1618 INIT_LIST_HEAD(&ar->rx_data_free); 1619 INIT_LIST_HEAD(&ar->rx_data_used); 1620 spin_lock_init(&ar->rx_data_list_lock); 1621 1622 ar->wq = create_singlethread_workqueue("ar5523"); 1623 if (!ar->wq) { 1624 ar5523_err(ar, "Could not create wq\n"); 1625 goto out_free_ar; 1626 } 1627 1628 error = ar5523_alloc_rx_bufs(ar); 1629 if (error) { 1630 ar5523_err(ar, "Could not allocate rx buffers\n"); 1631 goto out_free_wq; 1632 } 1633 1634 error = ar5523_alloc_rx_cmd(ar); 1635 if (error) { 1636 ar5523_err(ar, "Could not allocate rx command buffers\n"); 1637 goto out_free_rx_bufs; 1638 } 1639 1640 error = ar5523_alloc_tx_cmd(ar); 1641 if (error) { 1642 ar5523_err(ar, "Could not allocate tx command buffers\n"); 1643 goto out_free_rx_cmd; 1644 } 1645 1646 error = ar5523_submit_rx_cmd(ar); 1647 if (error) { 1648 ar5523_err(ar, "Failed to submit rx cmd\n"); 1649 goto out_free_tx_cmd; 1650 } 1651 1652 /* 1653 * We're now ready to send/receive firmware commands. 1654 */ 1655 error = ar5523_host_available(ar); 1656 if (error) { 1657 ar5523_err(ar, "could not initialize adapter\n"); 1658 goto out_cancel_rx_cmd; 1659 } 1660 1661 error = ar5523_get_max_rxsz(ar); 1662 if (error) { 1663 ar5523_err(ar, "could not get caps from adapter\n"); 1664 goto out_cancel_rx_cmd; 1665 } 1666 1667 error = ar5523_get_devcap(ar); 1668 if (error) { 1669 ar5523_err(ar, "could not get caps from adapter\n"); 1670 goto out_cancel_rx_cmd; 1671 } 1672 1673 error = ar5523_get_devstatus(ar); 1674 if (error != 0) { 1675 ar5523_err(ar, "could not get device status\n"); 1676 goto out_cancel_rx_cmd; 1677 } 1678 1679 ar5523_info(ar, "MAC/BBP AR5523, RF AR%c112\n", 1680 (id->driver_info & AR5523_FLAG_ABG) ? '5' : '2'); 1681 1682 ar->vif = NULL; 1683 ieee80211_hw_set(hw, HAS_RATE_CONTROL); 1684 ieee80211_hw_set(hw, RX_INCLUDES_FCS); 1685 ieee80211_hw_set(hw, SIGNAL_DBM); 1686 hw->extra_tx_headroom = sizeof(struct ar5523_tx_desc) + 1687 sizeof(struct ar5523_chunk); 1688 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION); 1689 hw->queues = 1; 1690 1691 error = ar5523_init_modes(ar); 1692 if (error) 1693 goto out_cancel_rx_cmd; 1694 1695 wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_CQM_RSSI_LIST); 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 const 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(0x083a, 0x4506), /* SMC / EZ Connect 1777 SMCWUSBT-G2 */ 1778 AR5523_DEVICE_UG(0x157e, 0x3006), /* Umedia / AR5523_1, TEW444UBEU*/ 1779 AR5523_DEVICE_UX(0x157e, 0x3205), /* Umedia / AR5523_2 */ 1780 AR5523_DEVICE_UG(0x1435, 0x0826), /* Wistronneweb / AR5523_1 */ 1781 AR5523_DEVICE_UX(0x1435, 0x0828), /* Wistronneweb / AR5523_2 */ 1782 AR5523_DEVICE_UG(0x0cde, 0x0012), /* Zcom / AR5523 */ 1783 AR5523_DEVICE_UG(0x1385, 0x4250), /* Netgear3 / WG111T (2) */ 1784 AR5523_DEVICE_UG(0x1385, 0x5f00), /* Netgear / WPN111 */ 1785 AR5523_DEVICE_UG(0x1385, 0x5f02), /* Netgear / WPN111 */ 1786 { } 1787 }; 1788 MODULE_DEVICE_TABLE(usb, ar5523_id_table); 1789 1790 static struct usb_driver ar5523_driver = { 1791 .name = "ar5523", 1792 .id_table = ar5523_id_table, 1793 .probe = ar5523_probe, 1794 .disconnect = ar5523_disconnect, 1795 }; 1796 1797 module_usb_driver(ar5523_driver); 1798 1799 MODULE_LICENSE("Dual BSD/GPL"); 1800 MODULE_FIRMWARE(AR5523_FIRMWARE_FILE); 1801