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