if_upgt.c revision 1.26.2.1
1 /* $NetBSD: if_upgt.c,v 1.26.2.1 2020/01/17 21:47:32 ad Exp $ */ 2 /* $OpenBSD: if_upgt.c,v 1.49 2010/04/20 22:05:43 tedu Exp $ */ 3 4 /* 5 * Copyright (c) 2007 Marcus Glocker <mglocker (at) openbsd.org> 6 * 7 * Permission to use, copy, modify, and distribute this software for any 8 * purpose with or without fee is hereby granted, provided that the above 9 * copyright notice and this permission notice appear in all copies. 10 * 11 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 12 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 13 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 14 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 15 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 16 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 17 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 18 */ 19 20 #include <sys/cdefs.h> 21 __KERNEL_RCSID(0, "$NetBSD: if_upgt.c,v 1.26.2.1 2020/01/17 21:47:32 ad Exp $"); 22 23 #ifdef _KERNEL_OPT 24 #include "opt_usb.h" 25 #endif 26 27 #include <sys/param.h> 28 #include <sys/callout.h> 29 #include <sys/device.h> 30 #include <sys/errno.h> 31 #include <sys/kernel.h> 32 #include <sys/kthread.h> 33 #include <sys/mbuf.h> 34 #include <sys/proc.h> 35 #include <sys/sockio.h> 36 #include <sys/systm.h> 37 #include <sys/vnode.h> 38 #include <sys/bus.h> 39 #include <sys/endian.h> 40 #include <sys/intr.h> 41 42 #include <net/bpf.h> 43 #include <net/if.h> 44 #include <net/if_arp.h> 45 #include <net/if_dl.h> 46 #include <net/if_ether.h> 47 #include <net/if_media.h> 48 #include <net/if_types.h> 49 50 #include <net80211/ieee80211_var.h> 51 #include <net80211/ieee80211_radiotap.h> 52 53 #include <dev/firmload.h> 54 55 #include <dev/usb/usb.h> 56 #include <dev/usb/usbdi.h> 57 #include <dev/usb/usbdi_util.h> 58 #include <dev/usb/usbdivar.h> 59 #include <dev/usb/usbdevs.h> 60 61 #include <dev/usb/if_upgtvar.h> 62 63 /* 64 * Driver for the USB PrismGT devices. 65 * 66 * For now just USB 2.0 devices with the GW3887 chipset are supported. 67 * The driver has been written based on the firmware version 2.13.1.0_LM87. 68 * 69 * TODO's: 70 * - Fix MONITOR mode (MAC filter). 71 * - Add HOSTAP mode. 72 * - Add IBSS mode. 73 * - Support the USB 1.0 devices (NET2280, ISL3880, ISL3886 chipsets). 74 * 75 * Parts of this driver has been influenced by reading the p54u driver 76 * written by Jean-Baptiste Note <jean-baptiste.note (at) m4x.org> and 77 * Sebastien Bourdeauducq <lekernel (at) prism54.org>. 78 */ 79 80 #ifdef UPGT_DEBUG 81 int upgt_debug = 2; 82 #define DPRINTF(l, x...) do { if ((l) <= upgt_debug) printf(x); } while (0) 83 #else 84 #define DPRINTF(l, x...) 85 #endif 86 87 /* 88 * Prototypes. 89 */ 90 static int upgt_match(device_t, cfdata_t, void *); 91 static void upgt_attach(device_t, device_t, void *); 92 static int upgt_detach(device_t, int); 93 static int upgt_activate(device_t, devact_t); 94 95 static void upgt_attach_hook(device_t); 96 static int upgt_device_type(struct upgt_softc *, uint16_t, uint16_t); 97 static int upgt_device_init(struct upgt_softc *); 98 static int upgt_mem_init(struct upgt_softc *); 99 static uint32_t upgt_mem_alloc(struct upgt_softc *); 100 static void upgt_mem_free(struct upgt_softc *, uint32_t); 101 static int upgt_fw_alloc(struct upgt_softc *); 102 static void upgt_fw_free(struct upgt_softc *); 103 static int upgt_fw_verify(struct upgt_softc *); 104 static int upgt_fw_load(struct upgt_softc *); 105 static int upgt_fw_copy(char *, char *, int); 106 static int upgt_eeprom_read(struct upgt_softc *); 107 static int upgt_eeprom_parse(struct upgt_softc *); 108 static void upgt_eeprom_parse_hwrx(struct upgt_softc *, uint8_t *); 109 static void upgt_eeprom_parse_freq3(struct upgt_softc *, uint8_t *, int); 110 static void upgt_eeprom_parse_freq4(struct upgt_softc *, uint8_t *, int); 111 static void upgt_eeprom_parse_freq6(struct upgt_softc *, uint8_t *, int); 112 113 static int upgt_ioctl(struct ifnet *, u_long, void *); 114 static int upgt_init(struct ifnet *); 115 static void upgt_stop(struct upgt_softc *); 116 static int upgt_media_change(struct ifnet *); 117 static void upgt_newassoc(struct ieee80211_node *, int); 118 static int upgt_newstate(struct ieee80211com *, enum ieee80211_state, 119 int); 120 static void upgt_newstate_task(void *); 121 static void upgt_next_scan(void *); 122 static void upgt_start(struct ifnet *); 123 static void upgt_watchdog(struct ifnet *); 124 static void upgt_tx_task(void *); 125 static void upgt_tx_done(struct upgt_softc *, uint8_t *); 126 static void upgt_rx_cb(struct usbd_xfer *, void *, usbd_status); 127 static void upgt_rx(struct upgt_softc *, uint8_t *, int); 128 static void upgt_setup_rates(struct upgt_softc *); 129 static uint8_t upgt_rx_rate(struct upgt_softc *, const int); 130 static int upgt_set_macfilter(struct upgt_softc *, uint8_t); 131 static int upgt_set_channel(struct upgt_softc *, unsigned); 132 static void upgt_set_led(struct upgt_softc *, int); 133 static void upgt_set_led_blink(void *); 134 static int upgt_get_stats(struct upgt_softc *); 135 136 static int upgt_alloc_tx(struct upgt_softc *); 137 static int upgt_alloc_rx(struct upgt_softc *); 138 static int upgt_alloc_cmd(struct upgt_softc *); 139 static void upgt_free_tx(struct upgt_softc *); 140 static void upgt_free_rx(struct upgt_softc *); 141 static void upgt_free_cmd(struct upgt_softc *); 142 static int upgt_bulk_xmit(struct upgt_softc *, struct upgt_data *, 143 struct usbd_pipe *, uint32_t *, int); 144 145 #if 0 146 static void upgt_hexdump(void *, int); 147 #endif 148 static uint32_t upgt_crc32_le(const void *, size_t); 149 static uint32_t upgt_chksum_le(const uint32_t *, size_t); 150 151 CFATTACH_DECL_NEW(upgt, sizeof(struct upgt_softc), 152 upgt_match, upgt_attach, upgt_detach, upgt_activate); 153 154 static const struct usb_devno upgt_devs_1[] = { 155 /* version 1 devices */ 156 { USB_VENDOR_ALCATELT, USB_PRODUCT_ALCATELT_ST120G }, 157 { USB_VENDOR_SMC, USB_PRODUCT_SMC_2862WG_V1 } 158 }; 159 160 static const struct usb_devno upgt_devs_2[] = { 161 /* version 2 devices */ 162 { USB_VENDOR_ACCTON, USB_PRODUCT_ACCTON_PRISM_GT }, 163 { USB_VENDOR_ALCATELT, USB_PRODUCT_ALCATELT_ST121G }, 164 { USB_VENDOR_BELKIN, USB_PRODUCT_BELKIN_F5D7050 }, 165 { USB_VENDOR_CISCOLINKSYS, USB_PRODUCT_CISCOLINKSYS_WUSB54AG }, 166 { USB_VENDOR_CISCOLINKSYS, USB_PRODUCT_CISCOLINKSYS_WUSB54GV2 }, 167 { USB_VENDOR_CONCEPTRONIC2, USB_PRODUCT_CONCEPTRONIC2_PRISM_GT }, 168 { USB_VENDOR_COREGA, USB_PRODUCT_COREGA_CGWLUSB2GTST }, 169 { USB_VENDOR_DELL, USB_PRODUCT_DELL_PRISM_GT_1 }, 170 { USB_VENDOR_DELL, USB_PRODUCT_DELL_PRISM_GT_2 }, 171 { USB_VENDOR_DLINK, USB_PRODUCT_DLINK_DWLG122A2 }, 172 { USB_VENDOR_FSC, USB_PRODUCT_FSC_E5400 }, 173 { USB_VENDOR_GLOBESPAN, USB_PRODUCT_GLOBESPAN_PRISM_GT_1 }, 174 { USB_VENDOR_GLOBESPAN, USB_PRODUCT_GLOBESPAN_PRISM_GT_2 }, 175 { USB_VENDOR_INTERSIL, USB_PRODUCT_INTERSIL_PRISM_GT }, 176 { USB_VENDOR_PHEENET, USB_PRODUCT_PHEENET_GWU513 }, 177 { USB_VENDOR_PHILIPS, USB_PRODUCT_PHILIPS_CPWUA054 }, 178 { USB_VENDOR_SHARP, USB_PRODUCT_SHARP_RUITZ1016YCZZ }, 179 { USB_VENDOR_SMC, USB_PRODUCT_SMC_2862WG }, 180 { USB_VENDOR_USR, USB_PRODUCT_USR_USR5422 }, 181 { USB_VENDOR_WISTRONNEWEB, USB_PRODUCT_WISTRONNEWEB_UR045G }, 182 { USB_VENDOR_CONEXANT, USB_PRODUCT_CONEXANT_PRISM_GT_1 }, 183 { USB_VENDOR_CONEXANT, USB_PRODUCT_CONEXANT_PRISM_GT_2 }, 184 { USB_VENDOR_ZCOM, USB_PRODUCT_ZCOM_MD40900 }, 185 { USB_VENDOR_ZCOM, USB_PRODUCT_ZCOM_XG703A } 186 }; 187 188 static int 189 firmware_load(const char *dname, const char *iname, uint8_t **ucodep, 190 size_t *sizep) 191 { 192 firmware_handle_t fh; 193 int error; 194 195 if ((error = firmware_open(dname, iname, &fh)) != 0) 196 return error; 197 *sizep = firmware_get_size(fh); 198 if ((*ucodep = firmware_malloc(*sizep)) == NULL) { 199 firmware_close(fh); 200 return ENOMEM; 201 } 202 if ((error = firmware_read(fh, 0, *ucodep, *sizep)) != 0) 203 firmware_free(*ucodep, *sizep); 204 firmware_close(fh); 205 206 return error; 207 } 208 209 static int 210 upgt_match(device_t parent, cfdata_t match, void *aux) 211 { 212 struct usb_attach_arg *uaa = aux; 213 214 if (usb_lookup(upgt_devs_1, uaa->uaa_vendor, uaa->uaa_product) != NULL) 215 return UMATCH_VENDOR_PRODUCT; 216 217 if (usb_lookup(upgt_devs_2, uaa->uaa_vendor, uaa->uaa_product) != NULL) 218 return UMATCH_VENDOR_PRODUCT; 219 220 return UMATCH_NONE; 221 } 222 223 static void 224 upgt_attach(device_t parent, device_t self, void *aux) 225 { 226 struct upgt_softc *sc = device_private(self); 227 struct usb_attach_arg *uaa = aux; 228 usb_interface_descriptor_t *id; 229 usb_endpoint_descriptor_t *ed; 230 usbd_status error; 231 char *devinfop; 232 int i; 233 234 aprint_naive("\n"); 235 aprint_normal("\n"); 236 237 /* 238 * Attach USB device. 239 */ 240 sc->sc_dev = self; 241 sc->sc_udev = uaa->uaa_device; 242 sc->sc_init_state = UPGT_INIT_NONE; 243 244 devinfop = usbd_devinfo_alloc(sc->sc_udev, 0); 245 aprint_normal_dev(sc->sc_dev, "%s\n", devinfop); 246 usbd_devinfo_free(devinfop); 247 248 /* check device type */ 249 if (upgt_device_type(sc, uaa->uaa_vendor, uaa->uaa_product) != 0) 250 return; 251 252 /* set configuration number */ 253 error = usbd_set_config_no(sc->sc_udev, UPGT_CONFIG_NO, 0); 254 if (error != 0) { 255 aprint_error_dev(sc->sc_dev, "failed to set configuration" 256 ", err=%s\n", usbd_errstr(error)); 257 return; 258 } 259 260 /* get the first interface handle */ 261 error = usbd_device2interface_handle(sc->sc_udev, UPGT_IFACE_INDEX, 262 &sc->sc_iface); 263 if (error != 0) { 264 aprint_error_dev(sc->sc_dev, 265 "could not get interface handle\n"); 266 return; 267 } 268 269 /* find endpoints */ 270 id = usbd_get_interface_descriptor(sc->sc_iface); 271 sc->sc_rx_no = sc->sc_tx_no = -1; 272 for (i = 0; i < id->bNumEndpoints; i++) { 273 ed = usbd_interface2endpoint_descriptor(sc->sc_iface, i); 274 if (ed == NULL) { 275 aprint_error_dev(sc->sc_dev, 276 "no endpoint descriptor for iface %d\n", i); 277 return; 278 } 279 280 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT && 281 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) 282 sc->sc_tx_no = ed->bEndpointAddress; 283 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 284 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) 285 sc->sc_rx_no = ed->bEndpointAddress; 286 287 /* 288 * 0x01 TX pipe 289 * 0x81 RX pipe 290 * 291 * Deprecated scheme (not used with fw version >2.5.6.x): 292 * 0x02 TX MGMT pipe 293 * 0x82 TX MGMT pipe 294 */ 295 if (sc->sc_tx_no != -1 && sc->sc_rx_no != -1) 296 break; 297 } 298 if (sc->sc_rx_no == -1 || sc->sc_tx_no == -1) { 299 aprint_error_dev(sc->sc_dev, "missing endpoint\n"); 300 return; 301 } 302 303 /* setup tasks and timeouts */ 304 usb_init_task(&sc->sc_task_newstate, upgt_newstate_task, sc, 0); 305 usb_init_task(&sc->sc_task_tx, upgt_tx_task, sc, 0); 306 callout_init(&sc->scan_to, 0); 307 callout_setfunc(&sc->scan_to, upgt_next_scan, sc); 308 callout_init(&sc->led_to, 0); 309 callout_setfunc(&sc->led_to, upgt_set_led_blink, sc); 310 sc->sc_init_state = UPGT_INIT_INITED; 311 312 /* 313 * Open TX and RX USB bulk pipes. 314 */ 315 error = usbd_open_pipe(sc->sc_iface, sc->sc_tx_no, USBD_EXCLUSIVE_USE, 316 &sc->sc_tx_pipeh); 317 if (error != 0) { 318 aprint_error_dev(sc->sc_dev, 319 "could not open TX pipe: %s\n", usbd_errstr(error)); 320 goto fail; 321 } 322 error = usbd_open_pipe(sc->sc_iface, sc->sc_rx_no, USBD_EXCLUSIVE_USE, 323 &sc->sc_rx_pipeh); 324 if (error != 0) { 325 aprint_error_dev(sc->sc_dev, "could not open RX pipe: %s\n", 326 usbd_errstr(error)); 327 goto fail; 328 } 329 330 /* 331 * Allocate TX, RX, and CMD xfers. 332 */ 333 if (upgt_alloc_tx(sc) != 0) 334 goto fail; 335 if (upgt_alloc_rx(sc) != 0) 336 goto fail; 337 if (upgt_alloc_cmd(sc) != 0) 338 goto fail; 339 340 /* 341 * We need the firmware loaded from file system to complete the attach. 342 */ 343 config_mountroot(self, upgt_attach_hook); 344 345 return; 346 fail: 347 aprint_error_dev(sc->sc_dev, "%s failed\n", __func__); 348 } 349 350 static void 351 upgt_attach_hook(device_t arg) 352 { 353 struct upgt_softc *sc = device_private(arg); 354 struct ieee80211com *ic = &sc->sc_ic; 355 struct ifnet *ifp = &sc->sc_if; 356 usbd_status error; 357 int i; 358 359 /* 360 * Load firmware file into memory. 361 */ 362 if (upgt_fw_alloc(sc) != 0) 363 goto fail; 364 365 /* 366 * Initialize the device. 367 */ 368 if (upgt_device_init(sc) != 0) 369 goto fail; 370 371 /* 372 * Verify the firmware. 373 */ 374 if (upgt_fw_verify(sc) != 0) 375 goto fail; 376 377 /* 378 * Calculate device memory space. 379 */ 380 if (sc->sc_memaddr_frame_start == 0 || sc->sc_memaddr_frame_end == 0) { 381 aprint_error_dev(sc->sc_dev, 382 "could not find memory space addresses on FW\n"); 383 goto fail; 384 } 385 sc->sc_memaddr_frame_end -= UPGT_MEMSIZE_RX + 1; 386 sc->sc_memaddr_rx_start = sc->sc_memaddr_frame_end + 1; 387 388 DPRINTF(1, "%s: memory address frame start=0x%08x\n", 389 device_xname(sc->sc_dev), sc->sc_memaddr_frame_start); 390 DPRINTF(1, "%s: memory address frame end=0x%08x\n", 391 device_xname(sc->sc_dev), sc->sc_memaddr_frame_end); 392 DPRINTF(1, "%s: memory address rx start=0x%08x\n", 393 device_xname(sc->sc_dev), sc->sc_memaddr_rx_start); 394 395 upgt_mem_init(sc); 396 397 /* 398 * Load the firmware. 399 */ 400 if (upgt_fw_load(sc) != 0) 401 goto fail; 402 403 /* 404 * Startup the RX pipe. 405 */ 406 struct upgt_data *data_rx = &sc->rx_data; 407 408 usbd_setup_xfer(data_rx->xfer, data_rx, data_rx->buf, 409 MCLBYTES, USBD_SHORT_XFER_OK, USBD_NO_TIMEOUT, upgt_rx_cb); 410 error = usbd_transfer(data_rx->xfer); 411 if (error != USBD_NORMAL_COMPLETION && error != USBD_IN_PROGRESS) { 412 aprint_error_dev(sc->sc_dev, 413 "could not queue RX transfer\n"); 414 goto fail; 415 } 416 usbd_delay_ms(sc->sc_udev, 100); 417 418 /* 419 * Read the whole EEPROM content and parse it. 420 */ 421 if (upgt_eeprom_read(sc) != 0) 422 goto fail; 423 if (upgt_eeprom_parse(sc) != 0) 424 goto fail; 425 426 /* 427 * Setup the 802.11 device. 428 */ 429 ic->ic_ifp = ifp; 430 ic->ic_phytype = IEEE80211_T_OFDM; 431 ic->ic_opmode = IEEE80211_M_STA; 432 ic->ic_state = IEEE80211_S_INIT; 433 ic->ic_caps = 434 IEEE80211_C_MONITOR | 435 IEEE80211_C_SHPREAMBLE | 436 IEEE80211_C_SHSLOT; 437 438 ic->ic_sup_rates[IEEE80211_MODE_11B] = ieee80211_std_rateset_11b; 439 ic->ic_sup_rates[IEEE80211_MODE_11G] = ieee80211_std_rateset_11g; 440 441 for (i = 1; i <= 14; i++) { 442 ic->ic_channels[i].ic_freq = 443 ieee80211_ieee2mhz(i, IEEE80211_CHAN_2GHZ); 444 ic->ic_channels[i].ic_flags = 445 IEEE80211_CHAN_CCK | IEEE80211_CHAN_OFDM | 446 IEEE80211_CHAN_DYN | IEEE80211_CHAN_2GHZ; 447 } 448 449 ifp->if_softc = sc; 450 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 451 ifp->if_init = upgt_init; 452 ifp->if_ioctl = upgt_ioctl; 453 ifp->if_start = upgt_start; 454 ifp->if_watchdog = upgt_watchdog; 455 IFQ_SET_READY(&ifp->if_snd); 456 memcpy(ifp->if_xname, device_xname(sc->sc_dev), IFNAMSIZ); 457 458 if_attach(ifp); 459 ieee80211_ifattach(ic); 460 ic->ic_newassoc = upgt_newassoc; 461 462 sc->sc_newstate = ic->ic_newstate; 463 ic->ic_newstate = upgt_newstate; 464 ieee80211_media_init(ic, upgt_media_change, ieee80211_media_status); 465 466 bpf_attach2(ifp, DLT_IEEE802_11_RADIO, 467 sizeof(struct ieee80211_frame) + IEEE80211_RADIOTAP_HDRLEN, 468 &sc->sc_drvbpf); 469 470 sc->sc_rxtap_len = sizeof(sc->sc_rxtapu); 471 sc->sc_rxtap.wr_ihdr.it_len = htole16(sc->sc_rxtap_len); 472 sc->sc_rxtap.wr_ihdr.it_present = htole32(UPGT_RX_RADIOTAP_PRESENT); 473 474 sc->sc_txtap_len = sizeof(sc->sc_txtapu); 475 sc->sc_txtap.wt_ihdr.it_len = htole16(sc->sc_txtap_len); 476 sc->sc_txtap.wt_ihdr.it_present = htole32(UPGT_TX_RADIOTAP_PRESENT); 477 478 aprint_normal_dev(sc->sc_dev, "address %s\n", 479 ether_sprintf(ic->ic_myaddr)); 480 481 ieee80211_announce(ic); 482 483 usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev, sc->sc_dev); 484 485 /* device attached */ 486 sc->sc_flags |= UPGT_DEVICE_ATTACHED; 487 488 return; 489 fail: 490 aprint_error_dev(sc->sc_dev, "%s failed\n", __func__); 491 } 492 493 static int 494 upgt_detach(device_t self, int flags) 495 { 496 struct upgt_softc *sc = device_private(self); 497 struct ifnet *ifp = &sc->sc_if; 498 struct ieee80211com *ic = &sc->sc_ic; 499 int s; 500 501 DPRINTF(1, "%s: %s\n", device_xname(sc->sc_dev), __func__); 502 503 if (sc->sc_init_state < UPGT_INIT_INITED) 504 return 0; 505 506 s = splnet(); 507 508 if (ifp->if_flags & IFF_RUNNING) 509 upgt_stop(sc); 510 511 /* remove tasks and timeouts */ 512 callout_halt(&sc->scan_to, NULL); 513 callout_halt(&sc->led_to, NULL); 514 usb_rem_task_wait(sc->sc_udev, &sc->sc_task_newstate, USB_TASKQ_DRIVER, 515 NULL); 516 usb_rem_task_wait(sc->sc_udev, &sc->sc_task_tx, USB_TASKQ_DRIVER, 517 NULL); 518 callout_destroy(&sc->scan_to); 519 callout_destroy(&sc->led_to); 520 521 /* abort and close TX / RX pipes */ 522 if (sc->sc_tx_pipeh != NULL) { 523 usbd_abort_pipe(sc->sc_tx_pipeh); 524 } 525 if (sc->sc_rx_pipeh != NULL) { 526 usbd_abort_pipe(sc->sc_rx_pipeh); 527 } 528 529 /* free xfers */ 530 upgt_free_tx(sc); 531 upgt_free_rx(sc); 532 upgt_free_cmd(sc); 533 534 /* Close TX / RX pipes */ 535 if (sc->sc_tx_pipeh != NULL) { 536 usbd_close_pipe(sc->sc_tx_pipeh); 537 } 538 if (sc->sc_rx_pipeh != NULL) { 539 usbd_close_pipe(sc->sc_rx_pipeh); 540 } 541 542 /* free firmware */ 543 upgt_fw_free(sc); 544 545 if (sc->sc_flags & UPGT_DEVICE_ATTACHED) { 546 /* detach interface */ 547 bpf_detach(ifp); 548 ieee80211_ifdetach(ic); 549 if_detach(ifp); 550 } 551 552 splx(s); 553 554 usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev, sc->sc_dev); 555 556 return 0; 557 } 558 559 static int 560 upgt_activate(device_t self, devact_t act) 561 { 562 struct upgt_softc *sc = device_private(self); 563 564 switch (act) { 565 case DVACT_DEACTIVATE: 566 if_deactivate(&sc->sc_if); 567 return 0; 568 default: 569 return EOPNOTSUPP; 570 } 571 } 572 573 static int 574 upgt_device_type(struct upgt_softc *sc, uint16_t vendor, uint16_t product) 575 { 576 577 if (usb_lookup(upgt_devs_1, vendor, product) != NULL) { 578 sc->sc_device_type = 1; 579 /* XXX */ 580 aprint_error_dev(sc->sc_dev, 581 "version 1 devices not supported yet\n"); 582 return 1; 583 } else 584 sc->sc_device_type = 2; 585 586 return 0; 587 } 588 589 static int 590 upgt_device_init(struct upgt_softc *sc) 591 { 592 struct upgt_data *data_cmd = &sc->cmd_data; 593 const uint8_t init_cmd[] = { 0x7e, 0x7e, 0x7e, 0x7e }; 594 int len; 595 596 len = sizeof(init_cmd); 597 memcpy(data_cmd->buf, init_cmd, len); 598 if (upgt_bulk_xmit(sc, data_cmd, sc->sc_tx_pipeh, &len, 0) != 0) { 599 aprint_error_dev(sc->sc_dev, 600 "could not send device init string\n"); 601 return EIO; 602 } 603 usbd_delay_ms(sc->sc_udev, 100); 604 605 DPRINTF(1, "%s: device initialized\n", device_xname(sc->sc_dev)); 606 607 return 0; 608 } 609 610 static int 611 upgt_mem_init(struct upgt_softc *sc) 612 { 613 int i; 614 615 for (i = 0; i < UPGT_MEMORY_MAX_PAGES; i++) { 616 sc->sc_memory.page[i].used = 0; 617 618 if (i == 0) { 619 /* 620 * The first memory page is always reserved for 621 * command data. 622 */ 623 sc->sc_memory.page[i].addr = 624 sc->sc_memaddr_frame_start + MCLBYTES; 625 } else { 626 sc->sc_memory.page[i].addr = 627 sc->sc_memory.page[i - 1].addr + MCLBYTES; 628 } 629 630 if (sc->sc_memory.page[i].addr + MCLBYTES >= 631 sc->sc_memaddr_frame_end) 632 break; 633 634 DPRINTF(2, "%s: memory address page %d=0x%08x\n", 635 device_xname(sc->sc_dev), i, sc->sc_memory.page[i].addr); 636 } 637 638 sc->sc_memory.pages = i; 639 640 DPRINTF(2, "%s: memory pages=%d\n", 641 device_xname(sc->sc_dev), sc->sc_memory.pages); 642 643 return 0; 644 } 645 646 static uint32_t 647 upgt_mem_alloc(struct upgt_softc *sc) 648 { 649 int i; 650 651 for (i = 0; i < sc->sc_memory.pages; i++) { 652 if (sc->sc_memory.page[i].used == 0) { 653 sc->sc_memory.page[i].used = 1; 654 return sc->sc_memory.page[i].addr; 655 } 656 } 657 658 return 0; 659 } 660 661 static void 662 upgt_mem_free(struct upgt_softc *sc, uint32_t addr) 663 { 664 int i; 665 666 for (i = 0; i < sc->sc_memory.pages; i++) { 667 if (sc->sc_memory.page[i].addr == addr) { 668 sc->sc_memory.page[i].used = 0; 669 return; 670 } 671 } 672 673 aprint_error_dev(sc->sc_dev, "could not free memory address 0x%08x\n", 674 addr); 675 } 676 677 678 static int 679 upgt_fw_alloc(struct upgt_softc *sc) 680 { 681 const char *name = "upgt-gw3887"; 682 int error; 683 684 if (sc->sc_fw == NULL) { 685 error = firmware_load("upgt", name, &sc->sc_fw, 686 &sc->sc_fw_size); 687 if (error != 0) { 688 if (error == ENOENT) { 689 /* 690 * The firmware file for upgt(4) is not in 691 * the default distribution due to its lisence 692 * so explicitly notify it if the firmware file 693 * is not found. 694 */ 695 aprint_error_dev(sc->sc_dev, 696 "firmware file %s is not installed\n", 697 name); 698 aprint_error_dev(sc->sc_dev, 699 "(it is not included in the default" 700 " distribution)\n"); 701 aprint_error_dev(sc->sc_dev, 702 "see upgt(4) man page for details about " 703 "firmware installation\n"); 704 } else { 705 aprint_error_dev(sc->sc_dev, 706 "could not read firmware %s\n", name); 707 } 708 return EIO; 709 } 710 } 711 712 DPRINTF(1, "%s: firmware %s allocated\n", device_xname(sc->sc_dev), 713 name); 714 715 return 0; 716 } 717 718 static void 719 upgt_fw_free(struct upgt_softc *sc) 720 { 721 722 if (sc->sc_fw != NULL) { 723 firmware_free(sc->sc_fw, sc->sc_fw_size); 724 sc->sc_fw = NULL; 725 DPRINTF(1, "%s: firmware freed\n", device_xname(sc->sc_dev)); 726 } 727 } 728 729 static int 730 upgt_fw_verify(struct upgt_softc *sc) 731 { 732 struct upgt_fw_bra_option *bra_option; 733 uint32_t bra_option_type, bra_option_len; 734 uint32_t *uc; 735 int offset, bra_end = 0; 736 737 /* 738 * Seek to beginning of Boot Record Area (BRA). 739 */ 740 for (offset = 0; offset < sc->sc_fw_size; offset += sizeof(*uc)) { 741 uc = (uint32_t *)(sc->sc_fw + offset); 742 if (*uc == 0) 743 break; 744 } 745 for (; offset < sc->sc_fw_size; offset += sizeof(*uc)) { 746 uc = (uint32_t *)(sc->sc_fw + offset); 747 if (*uc != 0) 748 break; 749 } 750 if (offset == sc->sc_fw_size) { 751 aprint_error_dev(sc->sc_dev, 752 "firmware Boot Record Area not found\n"); 753 return EIO; 754 } 755 DPRINTF(1, "%s: firmware Boot Record Area found at offset %d\n", 756 device_xname(sc->sc_dev), offset); 757 758 /* 759 * Parse Boot Record Area (BRA) options. 760 */ 761 while (offset < sc->sc_fw_size && bra_end == 0) { 762 /* get current BRA option */ 763 bra_option = (struct upgt_fw_bra_option *)(sc->sc_fw + offset); 764 bra_option_type = le32toh(bra_option->type); 765 bra_option_len = le32toh(bra_option->len) * sizeof(*uc); 766 767 switch (bra_option_type) { 768 case UPGT_BRA_TYPE_FW: 769 DPRINTF(1, "%s: UPGT_BRA_TYPE_FW len=%d\n", 770 device_xname(sc->sc_dev), bra_option_len); 771 772 if (bra_option_len != UPGT_BRA_FWTYPE_SIZE) { 773 aprint_error_dev(sc->sc_dev, 774 "wrong UPGT_BRA_TYPE_FW len\n"); 775 return EIO; 776 } 777 if (memcmp(UPGT_BRA_FWTYPE_LM86, bra_option->data, 778 bra_option_len) == 0) { 779 sc->sc_fw_type = UPGT_FWTYPE_LM86; 780 break; 781 } 782 if (memcmp(UPGT_BRA_FWTYPE_LM87, bra_option->data, 783 bra_option_len) == 0) { 784 sc->sc_fw_type = UPGT_FWTYPE_LM87; 785 break; 786 } 787 if (memcmp(UPGT_BRA_FWTYPE_FMAC, bra_option->data, 788 bra_option_len) == 0) { 789 sc->sc_fw_type = UPGT_FWTYPE_FMAC; 790 break; 791 } 792 aprint_error_dev(sc->sc_dev, 793 "unsupported firmware type\n"); 794 return EIO; 795 case UPGT_BRA_TYPE_VERSION: 796 DPRINTF(1, "%s: UPGT_BRA_TYPE_VERSION len=%d\n", 797 device_xname(sc->sc_dev), bra_option_len); 798 break; 799 case UPGT_BRA_TYPE_DEPIF: 800 DPRINTF(1, "%s: UPGT_BRA_TYPE_DEPIF len=%d\n", 801 device_xname(sc->sc_dev), bra_option_len); 802 break; 803 case UPGT_BRA_TYPE_EXPIF: 804 DPRINTF(1, "%s: UPGT_BRA_TYPE_EXPIF len=%d\n", 805 device_xname(sc->sc_dev), bra_option_len); 806 break; 807 case UPGT_BRA_TYPE_DESCR: 808 DPRINTF(1, "%s: UPGT_BRA_TYPE_DESCR len=%d\n", 809 device_xname(sc->sc_dev), bra_option_len); 810 811 struct upgt_fw_bra_descr *descr = 812 (struct upgt_fw_bra_descr *)bra_option->data; 813 814 sc->sc_memaddr_frame_start = 815 le32toh(descr->memaddr_space_start); 816 sc->sc_memaddr_frame_end = 817 le32toh(descr->memaddr_space_end); 818 819 DPRINTF(2, "%s: memory address space start=0x%08x\n", 820 device_xname(sc->sc_dev), 821 sc->sc_memaddr_frame_start); 822 DPRINTF(2, "%s: memory address space end=0x%08x\n", 823 device_xname(sc->sc_dev), 824 sc->sc_memaddr_frame_end); 825 break; 826 case UPGT_BRA_TYPE_END: 827 DPRINTF(1, "%s: UPGT_BRA_TYPE_END len=%d\n", 828 device_xname(sc->sc_dev), bra_option_len); 829 bra_end = 1; 830 break; 831 default: 832 DPRINTF(1, "%s: unknown BRA option len=%d\n", 833 device_xname(sc->sc_dev), bra_option_len); 834 return EIO; 835 } 836 837 /* jump to next BRA option */ 838 offset += sizeof(struct upgt_fw_bra_option) + bra_option_len; 839 } 840 841 DPRINTF(1, "%s: firmware verified\n", device_xname(sc->sc_dev)); 842 843 return 0; 844 } 845 846 static int 847 upgt_fw_load(struct upgt_softc *sc) 848 { 849 struct upgt_data *data_cmd = &sc->cmd_data; 850 struct upgt_data *data_rx = &sc->rx_data; 851 struct upgt_fw_x2_header *x2; 852 const uint8_t start_fwload_cmd[] = { 0x3c, 0x0d }; 853 int offset, bsize, n, i, len; 854 uint32_t crc; 855 856 /* send firmware start load command */ 857 len = sizeof(start_fwload_cmd); 858 memcpy(data_cmd->buf, start_fwload_cmd, len); 859 if (upgt_bulk_xmit(sc, data_cmd, sc->sc_tx_pipeh, &len, 0) != 0) { 860 aprint_error_dev(sc->sc_dev, 861 "could not send start_firmware_load command\n"); 862 return EIO; 863 } 864 865 /* send X2 header */ 866 len = sizeof(struct upgt_fw_x2_header); 867 x2 = (struct upgt_fw_x2_header *)data_cmd->buf; 868 memcpy(x2->signature, UPGT_X2_SIGNATURE, UPGT_X2_SIGNATURE_SIZE); 869 x2->startaddr = htole32(UPGT_MEMADDR_FIRMWARE_START); 870 x2->len = htole32(sc->sc_fw_size); 871 x2->crc = upgt_crc32_le(data_cmd->buf + UPGT_X2_SIGNATURE_SIZE, 872 sizeof(struct upgt_fw_x2_header) - UPGT_X2_SIGNATURE_SIZE - 873 sizeof(uint32_t)); 874 if (upgt_bulk_xmit(sc, data_cmd, sc->sc_tx_pipeh, &len, 0) != 0) { 875 aprint_error_dev(sc->sc_dev, 876 "could not send firmware X2 header\n"); 877 return EIO; 878 } 879 880 /* download firmware */ 881 for (offset = 0; offset < sc->sc_fw_size; offset += bsize) { 882 if (sc->sc_fw_size - offset > UPGT_FW_BLOCK_SIZE) 883 bsize = UPGT_FW_BLOCK_SIZE; 884 else 885 bsize = sc->sc_fw_size - offset; 886 887 n = upgt_fw_copy(sc->sc_fw + offset, data_cmd->buf, bsize); 888 889 DPRINTF(1, "%s: FW offset=%d, read=%d, sent=%d\n", 890 device_xname(sc->sc_dev), offset, n, bsize); 891 892 if (upgt_bulk_xmit(sc, data_cmd, sc->sc_tx_pipeh, &bsize, 0) 893 != 0) { 894 aprint_error_dev(sc->sc_dev, 895 "error while downloading firmware block\n"); 896 return EIO; 897 } 898 899 bsize = n; 900 } 901 DPRINTF(1, "%s: firmware downloaded\n", device_xname(sc->sc_dev)); 902 903 /* load firmware */ 904 crc = upgt_crc32_le(sc->sc_fw, sc->sc_fw_size); 905 *((uint32_t *)(data_cmd->buf) ) = crc; 906 *((uint8_t *)(data_cmd->buf) + 4) = 'g'; 907 *((uint8_t *)(data_cmd->buf) + 5) = '\r'; 908 len = 6; 909 if (upgt_bulk_xmit(sc, data_cmd, sc->sc_tx_pipeh, &len, 0) != 0) { 910 aprint_error_dev(sc->sc_dev, 911 "could not send load_firmware command\n"); 912 return EIO; 913 } 914 915 for (i = 0; i < UPGT_FIRMWARE_TIMEOUT; i++) { 916 len = UPGT_FW_BLOCK_SIZE; 917 memset(data_rx->buf, 0, 2); 918 if (upgt_bulk_xmit(sc, data_rx, sc->sc_rx_pipeh, &len, 919 USBD_SHORT_XFER_OK) != 0) { 920 aprint_error_dev(sc->sc_dev, 921 "could not read firmware response\n"); 922 return EIO; 923 } 924 925 if (memcmp(data_rx->buf, "OK", 2) == 0) 926 break; /* firmware load was successful */ 927 } 928 if (i == UPGT_FIRMWARE_TIMEOUT) { 929 aprint_error_dev(sc->sc_dev, "firmware load failed\n"); 930 return EIO; 931 } 932 DPRINTF(1, "%s: firmware loaded\n", device_xname(sc->sc_dev)); 933 934 return 0; 935 } 936 937 /* 938 * While copying the version 2 firmware, we need to replace two characters: 939 * 940 * 0x7e -> 0x7d 0x5e 941 * 0x7d -> 0x7d 0x5d 942 */ 943 static int 944 upgt_fw_copy(char *src, char *dst, int size) 945 { 946 int i, j; 947 948 for (i = 0, j = 0; i < size && j < size; i++) { 949 switch (src[i]) { 950 case 0x7e: 951 dst[j] = 0x7d; 952 j++; 953 dst[j] = 0x5e; 954 j++; 955 break; 956 case 0x7d: 957 dst[j] = 0x7d; 958 j++; 959 dst[j] = 0x5d; 960 j++; 961 break; 962 default: 963 dst[j] = src[i]; 964 j++; 965 break; 966 } 967 } 968 969 return i; 970 } 971 972 static int 973 upgt_eeprom_read(struct upgt_softc *sc) 974 { 975 struct upgt_data *data_cmd = &sc->cmd_data; 976 struct upgt_lmac_mem *mem; 977 struct upgt_lmac_eeprom *eeprom; 978 int offset, block, len; 979 980 offset = 0; 981 block = UPGT_EEPROM_BLOCK_SIZE; 982 while (offset < UPGT_EEPROM_SIZE) { 983 DPRINTF(1, "%s: request EEPROM block (offset=%d, len=%d)\n", 984 device_xname(sc->sc_dev), offset, block); 985 986 /* 987 * Transmit the URB containing the CMD data. 988 */ 989 len = sizeof(*mem) + sizeof(*eeprom) + block; 990 991 memset(data_cmd->buf, 0, len); 992 993 mem = (struct upgt_lmac_mem *)data_cmd->buf; 994 mem->addr = htole32(sc->sc_memaddr_frame_start + 995 UPGT_MEMSIZE_FRAME_HEAD); 996 997 eeprom = (struct upgt_lmac_eeprom *)(mem + 1); 998 eeprom->header1.flags = 0; 999 eeprom->header1.type = UPGT_H1_TYPE_CTRL; 1000 eeprom->header1.len = htole16(( 1001 sizeof(struct upgt_lmac_eeprom) - 1002 sizeof(struct upgt_lmac_header)) + block); 1003 1004 eeprom->header2.reqid = htole32(sc->sc_memaddr_frame_start); 1005 eeprom->header2.type = htole16(UPGT_H2_TYPE_EEPROM); 1006 eeprom->header2.flags = 0; 1007 1008 eeprom->offset = htole16(offset); 1009 eeprom->len = htole16(block); 1010 1011 mem->chksum = upgt_chksum_le((uint32_t *)eeprom, 1012 len - sizeof(*mem)); 1013 1014 if (upgt_bulk_xmit(sc, data_cmd, sc->sc_tx_pipeh, &len, 1015 USBD_FORCE_SHORT_XFER) != 0) { 1016 aprint_error_dev(sc->sc_dev, 1017 "could not transmit EEPROM data URB\n"); 1018 return EIO; 1019 } 1020 1021 mutex_enter(&sc->sc_mtx); 1022 int res = cv_timedwait(&sc->sc_cv, &sc->sc_mtx, UPGT_USB_TIMEOUT); 1023 mutex_exit(&sc->sc_mtx); 1024 if (res) { 1025 aprint_error_dev(sc->sc_dev, 1026 "timeout while waiting for EEPROM data\n"); 1027 return EIO; 1028 } 1029 1030 offset += block; 1031 if (UPGT_EEPROM_SIZE - offset < block) 1032 block = UPGT_EEPROM_SIZE - offset; 1033 } 1034 1035 return 0; 1036 } 1037 1038 static int 1039 upgt_eeprom_parse(struct upgt_softc *sc) 1040 { 1041 struct ieee80211com *ic = &sc->sc_ic; 1042 struct upgt_eeprom_header *eeprom_header; 1043 struct upgt_eeprom_option *eeprom_option; 1044 uint16_t option_len; 1045 uint16_t option_type; 1046 uint16_t preamble_len; 1047 int option_end = 0; 1048 1049 /* calculate eeprom options start offset */ 1050 eeprom_header = (struct upgt_eeprom_header *)sc->sc_eeprom; 1051 preamble_len = le16toh(eeprom_header->preamble_len); 1052 eeprom_option = (struct upgt_eeprom_option *)(sc->sc_eeprom + 1053 (sizeof(struct upgt_eeprom_header) + preamble_len)); 1054 1055 while (!option_end) { 1056 /* the eeprom option length is stored in words */ 1057 option_len = 1058 (le16toh(eeprom_option->len) - 1) * sizeof(uint16_t); 1059 option_type = 1060 le16toh(eeprom_option->type); 1061 1062 switch (option_type) { 1063 case UPGT_EEPROM_TYPE_NAME: 1064 DPRINTF(1, "%s: EEPROM name len=%d\n", 1065 device_xname(sc->sc_dev), option_len); 1066 break; 1067 case UPGT_EEPROM_TYPE_SERIAL: 1068 DPRINTF(1, "%s: EEPROM serial len=%d\n", 1069 device_xname(sc->sc_dev), option_len); 1070 break; 1071 case UPGT_EEPROM_TYPE_MAC: 1072 DPRINTF(1, "%s: EEPROM mac len=%d\n", 1073 device_xname(sc->sc_dev), option_len); 1074 1075 IEEE80211_ADDR_COPY(ic->ic_myaddr, eeprom_option->data); 1076 break; 1077 case UPGT_EEPROM_TYPE_HWRX: 1078 DPRINTF(1, "%s: EEPROM hwrx len=%d\n", 1079 device_xname(sc->sc_dev), option_len); 1080 1081 upgt_eeprom_parse_hwrx(sc, eeprom_option->data); 1082 break; 1083 case UPGT_EEPROM_TYPE_CHIP: 1084 DPRINTF(1, "%s: EEPROM chip len=%d\n", 1085 device_xname(sc->sc_dev), option_len); 1086 break; 1087 case UPGT_EEPROM_TYPE_FREQ3: 1088 DPRINTF(1, "%s: EEPROM freq3 len=%d\n", 1089 device_xname(sc->sc_dev), option_len); 1090 1091 upgt_eeprom_parse_freq3(sc, eeprom_option->data, 1092 option_len); 1093 break; 1094 case UPGT_EEPROM_TYPE_FREQ4: 1095 DPRINTF(1, "%s: EEPROM freq4 len=%d\n", 1096 device_xname(sc->sc_dev), option_len); 1097 1098 upgt_eeprom_parse_freq4(sc, eeprom_option->data, 1099 option_len); 1100 break; 1101 case UPGT_EEPROM_TYPE_FREQ5: 1102 DPRINTF(1, "%s: EEPROM freq5 len=%d\n", 1103 device_xname(sc->sc_dev), option_len); 1104 break; 1105 case UPGT_EEPROM_TYPE_FREQ6: 1106 DPRINTF(1, "%s: EEPROM freq6 len=%d\n", 1107 device_xname(sc->sc_dev), option_len); 1108 1109 upgt_eeprom_parse_freq6(sc, eeprom_option->data, 1110 option_len); 1111 break; 1112 case UPGT_EEPROM_TYPE_END: 1113 DPRINTF(1, "%s: EEPROM end len=%d\n", 1114 device_xname(sc->sc_dev), option_len); 1115 option_end = 1; 1116 break; 1117 case UPGT_EEPROM_TYPE_OFF: 1118 DPRINTF(1, "%s: EEPROM off without end option\n", 1119 device_xname(sc->sc_dev)); 1120 return EIO; 1121 default: 1122 DPRINTF(1, "%s: EEPROM unknown type 0x%04x len=%d\n", 1123 device_xname(sc->sc_dev), option_type, option_len); 1124 break; 1125 } 1126 1127 /* jump to next EEPROM option */ 1128 eeprom_option = (struct upgt_eeprom_option *) 1129 (eeprom_option->data + option_len); 1130 } 1131 1132 return 0; 1133 } 1134 1135 static void 1136 upgt_eeprom_parse_hwrx(struct upgt_softc *sc, uint8_t *data) 1137 { 1138 struct upgt_eeprom_option_hwrx *option_hwrx; 1139 1140 option_hwrx = (struct upgt_eeprom_option_hwrx *)data; 1141 1142 sc->sc_eeprom_hwrx = option_hwrx->rxfilter - UPGT_EEPROM_RX_CONST; 1143 1144 DPRINTF(2, "%s: hwrx option value=0x%04x\n", 1145 device_xname(sc->sc_dev), sc->sc_eeprom_hwrx); 1146 } 1147 1148 static void 1149 upgt_eeprom_parse_freq3(struct upgt_softc *sc, uint8_t *data, int len) 1150 { 1151 struct upgt_eeprom_freq3_header *freq3_header; 1152 struct upgt_lmac_freq3 *freq3; 1153 int i, elements, flags; 1154 unsigned channel; 1155 1156 freq3_header = (struct upgt_eeprom_freq3_header *)data; 1157 freq3 = (struct upgt_lmac_freq3 *)(freq3_header + 1); 1158 1159 flags = freq3_header->flags; 1160 elements = freq3_header->elements; 1161 1162 DPRINTF(2, "%s: flags=0x%02x\n", device_xname(sc->sc_dev), flags); 1163 DPRINTF(2, "%s: elements=%d\n", device_xname(sc->sc_dev), elements); 1164 __USE(flags); 1165 1166 for (i = 0; i < elements; i++) { 1167 channel = ieee80211_mhz2ieee(le16toh(freq3[i].freq), 0); 1168 1169 sc->sc_eeprom_freq3[channel] = freq3[i]; 1170 1171 DPRINTF(2, "%s: frequence=%d, channel=%d\n", 1172 device_xname(sc->sc_dev), 1173 le16toh(sc->sc_eeprom_freq3[channel].freq), channel); 1174 } 1175 } 1176 1177 static void 1178 upgt_eeprom_parse_freq4(struct upgt_softc *sc, uint8_t *data, int len) 1179 { 1180 struct upgt_eeprom_freq4_header *freq4_header; 1181 struct upgt_eeprom_freq4_1 *freq4_1; 1182 struct upgt_eeprom_freq4_2 *freq4_2; 1183 int i, j, elements, settings, flags; 1184 unsigned channel; 1185 1186 freq4_header = (struct upgt_eeprom_freq4_header *)data; 1187 freq4_1 = (struct upgt_eeprom_freq4_1 *)(freq4_header + 1); 1188 1189 flags = freq4_header->flags; 1190 elements = freq4_header->elements; 1191 settings = freq4_header->settings; 1192 1193 /* we need this value later */ 1194 sc->sc_eeprom_freq6_settings = freq4_header->settings; 1195 1196 DPRINTF(2, "%s: flags=0x%02x\n", device_xname(sc->sc_dev), flags); 1197 DPRINTF(2, "%s: elements=%d\n", device_xname(sc->sc_dev), elements); 1198 DPRINTF(2, "%s: settings=%d\n", device_xname(sc->sc_dev), settings); 1199 __USE(flags); 1200 1201 for (i = 0; i < elements; i++) { 1202 channel = ieee80211_mhz2ieee(le16toh(freq4_1[i].freq), 0); 1203 1204 freq4_2 = (struct upgt_eeprom_freq4_2 *)freq4_1[i].data; 1205 1206 for (j = 0; j < settings; j++) { 1207 sc->sc_eeprom_freq4[channel][j].cmd = freq4_2[j]; 1208 sc->sc_eeprom_freq4[channel][j].pad = 0; 1209 } 1210 1211 DPRINTF(2, "%s: frequence=%d, channel=%d\n", 1212 device_xname(sc->sc_dev), 1213 le16toh(freq4_1[i].freq), channel); 1214 } 1215 } 1216 1217 static void 1218 upgt_eeprom_parse_freq6(struct upgt_softc *sc, uint8_t *data, int len) 1219 { 1220 struct upgt_lmac_freq6 *freq6; 1221 int i, elements; 1222 unsigned channel; 1223 1224 freq6 = (struct upgt_lmac_freq6 *)data; 1225 1226 elements = len / sizeof(struct upgt_lmac_freq6); 1227 1228 DPRINTF(2, "%s: elements=%d\n", device_xname(sc->sc_dev), elements); 1229 1230 for (i = 0; i < elements; i++) { 1231 channel = ieee80211_mhz2ieee(le16toh(freq6[i].freq), 0); 1232 1233 sc->sc_eeprom_freq6[channel] = freq6[i]; 1234 1235 DPRINTF(2, "%s: frequence=%d, channel=%d\n", 1236 device_xname(sc->sc_dev), 1237 le16toh(sc->sc_eeprom_freq6[channel].freq), channel); 1238 } 1239 } 1240 1241 static int 1242 upgt_ioctl(struct ifnet *ifp, u_long cmd, void *data) 1243 { 1244 struct upgt_softc *sc = ifp->if_softc; 1245 struct ieee80211com *ic = &sc->sc_ic; 1246 int s, error = 0; 1247 1248 s = splnet(); 1249 1250 switch (cmd) { 1251 case SIOCSIFFLAGS: 1252 if ((error = ifioctl_common(ifp, cmd, data)) != 0) 1253 break; 1254 if (ifp->if_flags & IFF_UP) { 1255 if ((ifp->if_flags & IFF_RUNNING) == 0) 1256 upgt_init(ifp); 1257 } else { 1258 if (ifp->if_flags & IFF_RUNNING) 1259 upgt_stop(sc); 1260 } 1261 break; 1262 case SIOCADDMULTI: 1263 case SIOCDELMULTI: 1264 if ((error = ether_ioctl(ifp, cmd, data)) == ENETRESET) { 1265 /* setup multicast filter, etc */ 1266 error = 0; 1267 } 1268 break; 1269 default: 1270 error = ieee80211_ioctl(ic, cmd, data); 1271 break; 1272 } 1273 1274 if (error == ENETRESET) { 1275 if ((ifp->if_flags & (IFF_UP | IFF_RUNNING)) == 1276 (IFF_UP | IFF_RUNNING)) 1277 upgt_init(ifp); 1278 error = 0; 1279 } 1280 1281 splx(s); 1282 1283 return error; 1284 } 1285 1286 static int 1287 upgt_init(struct ifnet *ifp) 1288 { 1289 struct upgt_softc *sc = ifp->if_softc; 1290 struct ieee80211com *ic = &sc->sc_ic; 1291 1292 DPRINTF(1, "%s: %s\n", device_xname(sc->sc_dev), __func__); 1293 1294 if (ifp->if_flags & IFF_RUNNING) 1295 upgt_stop(sc); 1296 1297 ifp->if_flags |= IFF_RUNNING; 1298 ifp->if_flags &= ~IFF_OACTIVE; 1299 1300 IEEE80211_ADDR_COPY(ic->ic_myaddr, CLLADDR(ifp->if_sadl)); 1301 1302 /* setup device rates */ 1303 upgt_setup_rates(sc); 1304 1305 if (ic->ic_opmode == IEEE80211_M_MONITOR) 1306 ieee80211_new_state(ic, IEEE80211_S_RUN, -1); 1307 else 1308 ieee80211_new_state(ic, IEEE80211_S_SCAN, -1); 1309 1310 return 0; 1311 } 1312 1313 static void 1314 upgt_stop(struct upgt_softc *sc) 1315 { 1316 struct ieee80211com *ic = &sc->sc_ic; 1317 struct ifnet *ifp = &sc->sc_if; 1318 1319 DPRINTF(1, "%s: %s\n", device_xname(sc->sc_dev), __func__); 1320 1321 /* device down */ 1322 ifp->if_timer = 0; 1323 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); 1324 1325 /* change device back to initial state */ 1326 ieee80211_new_state(ic, IEEE80211_S_INIT, -1); 1327 } 1328 1329 static int 1330 upgt_media_change(struct ifnet *ifp) 1331 { 1332 struct upgt_softc *sc = ifp->if_softc; 1333 int error; 1334 1335 DPRINTF(1, "%s: %s\n", device_xname(sc->sc_dev), __func__); 1336 1337 if ((error = ieee80211_media_change(ifp)) != ENETRESET) 1338 return error; 1339 1340 if ((ifp->if_flags & (IFF_UP | IFF_RUNNING)) == 1341 (IFF_UP | IFF_RUNNING)) { 1342 /* give pending USB transfers a chance to finish */ 1343 usbd_delay_ms(sc->sc_udev, 100); 1344 upgt_init(ifp); 1345 } 1346 1347 return 0; 1348 } 1349 1350 static void 1351 upgt_newassoc(struct ieee80211_node *ni, int isnew) 1352 { 1353 1354 ni->ni_txrate = 0; 1355 } 1356 1357 static int 1358 upgt_newstate(struct ieee80211com *ic, enum ieee80211_state nstate, int arg) 1359 { 1360 struct upgt_softc *sc = ic->ic_ifp->if_softc; 1361 1362 /* 1363 * XXXSMP: This does not wait for the task, if it is in flight, 1364 * to complete. If this code works at all, it must rely on the 1365 * kernel lock to serialize with the USB task thread. 1366 */ 1367 usb_rem_task(sc->sc_udev, &sc->sc_task_newstate); 1368 callout_stop(&sc->scan_to); 1369 1370 /* do it in a process context */ 1371 sc->sc_state = nstate; 1372 sc->sc_arg = arg; 1373 usb_add_task(sc->sc_udev, &sc->sc_task_newstate, USB_TASKQ_DRIVER); 1374 1375 return 0; 1376 } 1377 1378 static void 1379 upgt_newstate_task(void *arg) 1380 { 1381 struct upgt_softc *sc = arg; 1382 struct ieee80211com *ic = &sc->sc_ic; 1383 struct ieee80211_node *ni; 1384 unsigned channel; 1385 1386 mutex_enter(&sc->sc_mtx); 1387 1388 switch (sc->sc_state) { 1389 case IEEE80211_S_INIT: 1390 DPRINTF(1, "%s: newstate is IEEE80211_S_INIT\n", 1391 device_xname(sc->sc_dev)); 1392 1393 /* do not accept any frames if the device is down */ 1394 upgt_set_macfilter(sc, IEEE80211_S_INIT); 1395 upgt_set_led(sc, UPGT_LED_OFF); 1396 break; 1397 case IEEE80211_S_SCAN: 1398 DPRINTF(1, "%s: newstate is IEEE80211_S_SCAN\n", 1399 device_xname(sc->sc_dev)); 1400 1401 channel = ieee80211_chan2ieee(ic, ic->ic_curchan); 1402 upgt_set_channel(sc, channel); 1403 upgt_set_macfilter(sc, IEEE80211_S_SCAN); 1404 callout_schedule(&sc->scan_to, hz / 5); 1405 break; 1406 case IEEE80211_S_AUTH: 1407 DPRINTF(1, "%s: newstate is IEEE80211_S_AUTH\n", 1408 device_xname(sc->sc_dev)); 1409 1410 channel = ieee80211_chan2ieee(ic, ic->ic_curchan); 1411 upgt_set_channel(sc, channel); 1412 break; 1413 case IEEE80211_S_ASSOC: 1414 DPRINTF(1, "%s: newstate is IEEE80211_S_ASSOC\n", 1415 device_xname(sc->sc_dev)); 1416 1417 channel = ieee80211_chan2ieee(ic, ic->ic_curchan); 1418 upgt_set_channel(sc, channel); 1419 break; 1420 case IEEE80211_S_RUN: 1421 DPRINTF(1, "%s: newstate is IEEE80211_S_RUN\n", 1422 device_xname(sc->sc_dev)); 1423 1424 channel = ieee80211_chan2ieee(ic, ic->ic_curchan); 1425 upgt_set_channel(sc, channel); 1426 1427 ni = ic->ic_bss; 1428 1429 /* 1430 * TX rate control is done by the firmware. 1431 * Report the maximum rate which is available therefore. 1432 */ 1433 ni->ni_txrate = ni->ni_rates.rs_nrates - 1; 1434 1435 if (ic->ic_opmode != IEEE80211_M_MONITOR) 1436 upgt_set_macfilter(sc, IEEE80211_S_RUN); 1437 upgt_set_led(sc, UPGT_LED_ON); 1438 break; 1439 } 1440 1441 mutex_exit(&sc->sc_mtx); 1442 1443 sc->sc_newstate(ic, sc->sc_state, sc->sc_arg); 1444 } 1445 1446 static void 1447 upgt_next_scan(void *arg) 1448 { 1449 struct upgt_softc *sc = arg; 1450 struct ieee80211com *ic = &sc->sc_ic; 1451 1452 DPRINTF(2, "%s: %s\n", device_xname(sc->sc_dev), __func__); 1453 1454 if (ic->ic_state == IEEE80211_S_SCAN) 1455 ieee80211_next_scan(ic); 1456 } 1457 1458 static void 1459 upgt_start(struct ifnet *ifp) 1460 { 1461 struct upgt_softc *sc = ifp->if_softc; 1462 struct ieee80211com *ic = &sc->sc_ic; 1463 struct ether_header *eh; 1464 struct ieee80211_node *ni; 1465 struct mbuf *m; 1466 int i; 1467 1468 /* don't transmit packets if interface is busy or down */ 1469 if ((ifp->if_flags & (IFF_RUNNING | IFF_OACTIVE)) != IFF_RUNNING) 1470 return; 1471 1472 DPRINTF(2, "%s: %s\n", device_xname(sc->sc_dev), __func__); 1473 1474 for (i = 0; i < UPGT_TX_COUNT; i++) { 1475 struct upgt_data *data_tx = &sc->tx_data[i]; 1476 1477 if (data_tx->m != NULL) 1478 continue; 1479 1480 IF_POLL(&ic->ic_mgtq, m); 1481 if (m != NULL) { 1482 /* management frame */ 1483 IF_DEQUEUE(&ic->ic_mgtq, m); 1484 1485 ni = M_GETCTX(m, struct ieee80211_node *); 1486 M_CLEARCTX(m); 1487 1488 bpf_mtap3(ic->ic_rawbpf, m, BPF_D_OUT); 1489 1490 if ((data_tx->addr = upgt_mem_alloc(sc)) == 0) { 1491 aprint_error_dev(sc->sc_dev, 1492 "no free prism memory\n"); 1493 m_freem(m); 1494 ifp->if_oerrors++; 1495 break; 1496 } 1497 data_tx->ni = ni; 1498 data_tx->m = m; 1499 sc->tx_queued++; 1500 } else { 1501 /* data frame */ 1502 if (ic->ic_state != IEEE80211_S_RUN) 1503 break; 1504 1505 IFQ_POLL(&ifp->if_snd, m); 1506 if (m == NULL) 1507 break; 1508 1509 IFQ_DEQUEUE(&ifp->if_snd, m); 1510 if (m->m_len < sizeof(struct ether_header) && 1511 !(m = m_pullup(m, sizeof(struct ether_header)))) 1512 continue; 1513 1514 eh = mtod(m, struct ether_header *); 1515 ni = ieee80211_find_txnode(ic, eh->ether_dhost); 1516 if (ni == NULL) { 1517 m_freem(m); 1518 continue; 1519 } 1520 1521 bpf_mtap(ifp, m, BPF_D_OUT); 1522 1523 m = ieee80211_encap(ic, m, ni); 1524 if (m == NULL) { 1525 ieee80211_free_node(ni); 1526 continue; 1527 } 1528 1529 bpf_mtap3(ic->ic_rawbpf, m, BPF_D_OUT); 1530 1531 if ((data_tx->addr = upgt_mem_alloc(sc)) == 0) { 1532 aprint_error_dev(sc->sc_dev, 1533 "no free prism memory\n"); 1534 m_freem(m); 1535 ieee80211_free_node(ni); 1536 ifp->if_oerrors++; 1537 break; 1538 } 1539 data_tx->ni = ni; 1540 data_tx->m = m; 1541 sc->tx_queued++; 1542 } 1543 } 1544 1545 if (sc->tx_queued > 0) { 1546 DPRINTF(2, "%s: tx_queued=%d\n", 1547 device_xname(sc->sc_dev), sc->tx_queued); 1548 /* process the TX queue in process context */ 1549 ifp->if_timer = 5; 1550 ifp->if_flags |= IFF_OACTIVE; 1551 usb_rem_task(sc->sc_udev, &sc->sc_task_tx); 1552 usb_add_task(sc->sc_udev, &sc->sc_task_tx, USB_TASKQ_DRIVER); 1553 } 1554 } 1555 1556 static void 1557 upgt_watchdog(struct ifnet *ifp) 1558 { 1559 struct upgt_softc *sc = ifp->if_softc; 1560 struct ieee80211com *ic = &sc->sc_ic; 1561 1562 if (ic->ic_state == IEEE80211_S_INIT) 1563 return; 1564 1565 aprint_error_dev(sc->sc_dev, "watchdog timeout\n"); 1566 1567 /* TODO: what shall we do on TX timeout? */ 1568 1569 ieee80211_watchdog(ic); 1570 } 1571 1572 static void 1573 upgt_tx_task(void *arg) 1574 { 1575 struct upgt_softc *sc = arg; 1576 struct ieee80211com *ic = &sc->sc_ic; 1577 struct ieee80211_frame *wh; 1578 struct ieee80211_key *k; 1579 struct ifnet *ifp = &sc->sc_if; 1580 struct upgt_lmac_mem *mem; 1581 struct upgt_lmac_tx_desc *txdesc; 1582 struct mbuf *m; 1583 uint32_t addr; 1584 int i, len, pad, s; 1585 usbd_status error; 1586 1587 mutex_enter(&sc->sc_mtx); 1588 upgt_set_led(sc, UPGT_LED_BLINK); 1589 mutex_exit(&sc->sc_mtx); 1590 1591 s = splnet(); 1592 1593 for (i = 0; i < UPGT_TX_COUNT; i++) { 1594 struct upgt_data *data_tx = &sc->tx_data[i]; 1595 1596 if (data_tx->m == NULL) 1597 continue; 1598 1599 m = data_tx->m; 1600 addr = data_tx->addr + UPGT_MEMSIZE_FRAME_HEAD; 1601 1602 /* 1603 * Software crypto. 1604 */ 1605 wh = mtod(m, struct ieee80211_frame *); 1606 1607 if (wh->i_fc[1] & IEEE80211_FC1_WEP) { 1608 k = ieee80211_crypto_encap(ic, data_tx->ni, m); 1609 if (k == NULL) { 1610 m_freem(m); 1611 data_tx->m = NULL; 1612 ieee80211_free_node(data_tx->ni); 1613 data_tx->ni = NULL; 1614 ifp->if_oerrors++; 1615 break; 1616 } 1617 1618 /* in case packet header moved, reset pointer */ 1619 wh = mtod(m, struct ieee80211_frame *); 1620 } 1621 1622 /* 1623 * Transmit the URB containing the TX data. 1624 */ 1625 memset(data_tx->buf, 0, sizeof(*mem) + sizeof(*txdesc)); 1626 1627 mem = (struct upgt_lmac_mem *)data_tx->buf; 1628 mem->addr = htole32(addr); 1629 1630 txdesc = (struct upgt_lmac_tx_desc *)(mem + 1); 1631 1632 /* XXX differ between data and mgmt frames? */ 1633 txdesc->header1.flags = UPGT_H1_FLAGS_TX_DATA; 1634 txdesc->header1.type = UPGT_H1_TYPE_TX_DATA; 1635 txdesc->header1.len = htole16(m->m_pkthdr.len); 1636 1637 txdesc->header2.reqid = htole32(data_tx->addr); 1638 txdesc->header2.type = htole16(UPGT_H2_TYPE_TX_ACK_YES); 1639 txdesc->header2.flags = htole16(UPGT_H2_FLAGS_TX_ACK_YES); 1640 1641 if ((wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) == 1642 IEEE80211_FC0_TYPE_MGT) { 1643 /* always send mgmt frames at lowest rate (DS1) */ 1644 memset(txdesc->rates, 0x10, sizeof(txdesc->rates)); 1645 } else { 1646 memcpy(txdesc->rates, sc->sc_cur_rateset, 1647 sizeof(txdesc->rates)); 1648 } 1649 txdesc->type = htole32(UPGT_TX_DESC_TYPE_DATA); 1650 txdesc->pad3[0] = UPGT_TX_DESC_PAD3_SIZE; 1651 1652 if (sc->sc_drvbpf != NULL) { 1653 struct upgt_tx_radiotap_header *tap = &sc->sc_txtap; 1654 1655 tap->wt_flags = 0; 1656 tap->wt_rate = 0; /* TODO: where to get from? */ 1657 tap->wt_chan_freq = htole16(ic->ic_curchan->ic_freq); 1658 tap->wt_chan_flags = htole16(ic->ic_curchan->ic_flags); 1659 1660 bpf_mtap2(sc->sc_drvbpf, tap, sc->sc_txtap_len, m, 1661 BPF_D_OUT); 1662 } 1663 1664 /* copy frame below our TX descriptor header */ 1665 m_copydata(m, 0, m->m_pkthdr.len, 1666 data_tx->buf + sizeof(*mem) + sizeof(*txdesc)); 1667 1668 /* calculate frame size */ 1669 len = sizeof(*mem) + sizeof(*txdesc) + m->m_pkthdr.len; 1670 1671 if (len & 3) { 1672 /* we need to align the frame to a 4 byte boundary */ 1673 pad = 4 - (len & 3); 1674 memset(data_tx->buf + len, 0, pad); 1675 len += pad; 1676 } 1677 1678 /* calculate frame checksum */ 1679 mem->chksum = upgt_chksum_le((uint32_t *)txdesc, 1680 len - sizeof(*mem)); 1681 1682 /* we do not need the mbuf anymore */ 1683 m_freem(m); 1684 data_tx->m = NULL; 1685 1686 ieee80211_free_node(data_tx->ni); 1687 data_tx->ni = NULL; 1688 1689 DPRINTF(2, "%s: TX start data sending\n", 1690 device_xname(sc->sc_dev)); 1691 1692 usbd_setup_xfer(data_tx->xfer, data_tx, data_tx->buf, len, 1693 USBD_FORCE_SHORT_XFER, UPGT_USB_TIMEOUT, NULL); 1694 error = usbd_transfer(data_tx->xfer); 1695 if (error != USBD_NORMAL_COMPLETION && 1696 error != USBD_IN_PROGRESS) { 1697 aprint_error_dev(sc->sc_dev, 1698 "could not transmit TX data URB\n"); 1699 ifp->if_oerrors++; 1700 break; 1701 } 1702 1703 DPRINTF(2, "%s: TX sent (%d bytes)\n", 1704 device_xname(sc->sc_dev), len); 1705 } 1706 1707 splx(s); 1708 1709 /* 1710 * If we don't regulary read the device statistics, the RX queue 1711 * will stall. It's strange, but it works, so we keep reading 1712 * the statistics here. *shrug* 1713 */ 1714 mutex_enter(&sc->sc_mtx); 1715 upgt_get_stats(sc); 1716 mutex_exit(&sc->sc_mtx); 1717 } 1718 1719 static void 1720 upgt_tx_done(struct upgt_softc *sc, uint8_t *data) 1721 { 1722 struct ifnet *ifp = &sc->sc_if; 1723 struct upgt_lmac_tx_done_desc *desc; 1724 int i, s; 1725 1726 s = splnet(); 1727 1728 desc = (struct upgt_lmac_tx_done_desc *)data; 1729 1730 for (i = 0; i < UPGT_TX_COUNT; i++) { 1731 struct upgt_data *data_tx = &sc->tx_data[i]; 1732 1733 if (data_tx->addr == le32toh(desc->header2.reqid)) { 1734 upgt_mem_free(sc, data_tx->addr); 1735 data_tx->addr = 0; 1736 1737 sc->tx_queued--; 1738 ifp->if_opackets++; 1739 1740 DPRINTF(2, "%s: TX done: ", device_xname(sc->sc_dev)); 1741 DPRINTF(2, "memaddr=0x%08x, status=0x%04x, rssi=%d, ", 1742 le32toh(desc->header2.reqid), 1743 le16toh(desc->status), 1744 le16toh(desc->rssi)); 1745 DPRINTF(2, "seq=%d\n", le16toh(desc->seq)); 1746 break; 1747 } 1748 } 1749 1750 if (sc->tx_queued == 0) { 1751 /* TX queued was processed, continue */ 1752 ifp->if_timer = 0; 1753 ifp->if_flags &= ~IFF_OACTIVE; 1754 upgt_start(ifp); 1755 } 1756 1757 splx(s); 1758 } 1759 1760 static void 1761 upgt_rx_cb(struct usbd_xfer *xfer, void * priv, usbd_status status) 1762 { 1763 struct upgt_data *data_rx = priv; 1764 struct upgt_softc *sc = data_rx->sc; 1765 int len; 1766 struct upgt_lmac_header *header; 1767 struct upgt_lmac_eeprom *eeprom; 1768 uint8_t h1_type; 1769 uint16_t h2_type; 1770 1771 DPRINTF(3, "%s: %s\n", device_xname(sc->sc_dev), __func__); 1772 1773 if (status != USBD_NORMAL_COMPLETION) { 1774 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) 1775 return; 1776 if (status == USBD_STALLED) 1777 usbd_clear_endpoint_stall_async(sc->sc_rx_pipeh); 1778 goto skip; 1779 } 1780 usbd_get_xfer_status(xfer, NULL, NULL, &len, NULL); 1781 1782 /* 1783 * Check what type of frame came in. 1784 */ 1785 header = (struct upgt_lmac_header *)(data_rx->buf + 4); 1786 1787 h1_type = header->header1.type; 1788 h2_type = le16toh(header->header2.type); 1789 1790 if (h1_type == UPGT_H1_TYPE_CTRL && 1791 h2_type == UPGT_H2_TYPE_EEPROM) { 1792 eeprom = (struct upgt_lmac_eeprom *)(data_rx->buf + 4); 1793 uint16_t eeprom_offset = le16toh(eeprom->offset); 1794 uint16_t eeprom_len = le16toh(eeprom->len); 1795 1796 DPRINTF(2, "%s: received EEPROM block (offset=%d, len=%d)\n", 1797 device_xname(sc->sc_dev), eeprom_offset, eeprom_len); 1798 1799 mutex_enter(&sc->sc_mtx); 1800 memcpy(sc->sc_eeprom + eeprom_offset, 1801 data_rx->buf + sizeof(struct upgt_lmac_eeprom) + 4, 1802 eeprom_len); 1803 1804 /* EEPROM data has arrived in time, wakeup upgt_eeprom_read */ 1805 /* Note eeprom data arrived */ 1806 cv_broadcast(&sc->sc_cv); 1807 mutex_exit(&sc->sc_mtx); 1808 } else 1809 if (h1_type == UPGT_H1_TYPE_CTRL && 1810 h2_type == UPGT_H2_TYPE_TX_DONE) { 1811 DPRINTF(2, "%s: received 802.11 TX done\n", 1812 device_xname(sc->sc_dev)); 1813 1814 upgt_tx_done(sc, data_rx->buf + 4); 1815 } else 1816 if (h1_type == UPGT_H1_TYPE_RX_DATA || 1817 h1_type == UPGT_H1_TYPE_RX_DATA_MGMT) { 1818 DPRINTF(3, "%s: received 802.11 RX data\n", 1819 device_xname(sc->sc_dev)); 1820 1821 upgt_rx(sc, data_rx->buf + 4, le16toh(header->header1.len)); 1822 } else 1823 if (h1_type == UPGT_H1_TYPE_CTRL && 1824 h2_type == UPGT_H2_TYPE_STATS) { 1825 DPRINTF(2, "%s: received statistic data\n", 1826 device_xname(sc->sc_dev)); 1827 1828 /* TODO: what could we do with the statistic data? */ 1829 } else { 1830 /* ignore unknown frame types */ 1831 DPRINTF(1, "%s: received unknown frame type 0x%02x\n", 1832 device_xname(sc->sc_dev), header->header1.type); 1833 } 1834 1835 skip: /* setup new transfer */ 1836 usbd_setup_xfer(xfer, data_rx, data_rx->buf, MCLBYTES, 1837 USBD_SHORT_XFER_OK, USBD_NO_TIMEOUT, upgt_rx_cb); 1838 (void)usbd_transfer(xfer); 1839 } 1840 1841 static void 1842 upgt_rx(struct upgt_softc *sc, uint8_t *data, int pkglen) 1843 { 1844 struct ieee80211com *ic = &sc->sc_ic; 1845 struct ifnet *ifp = &sc->sc_if; 1846 struct upgt_lmac_rx_desc *rxdesc; 1847 struct ieee80211_frame *wh; 1848 struct ieee80211_node *ni; 1849 struct mbuf *m; 1850 int s; 1851 1852 /* access RX packet descriptor */ 1853 rxdesc = (struct upgt_lmac_rx_desc *)data; 1854 1855 /* create mbuf which is suitable for strict alignment archs */ 1856 m = m_devget(rxdesc->data, pkglen, 0, ifp); 1857 if (m == NULL) { 1858 DPRINTF(1, "%s: could not create RX mbuf\n", 1859 device_xname(sc->sc_dev)); 1860 ifp->if_ierrors++; 1861 return; 1862 } 1863 1864 s = splnet(); 1865 1866 if (sc->sc_drvbpf != NULL) { 1867 struct upgt_rx_radiotap_header *tap = &sc->sc_rxtap; 1868 1869 tap->wr_flags = IEEE80211_RADIOTAP_F_FCS; 1870 tap->wr_rate = upgt_rx_rate(sc, rxdesc->rate); 1871 tap->wr_chan_freq = htole16(ic->ic_curchan->ic_freq); 1872 tap->wr_chan_flags = htole16(ic->ic_curchan->ic_flags); 1873 tap->wr_antsignal = rxdesc->rssi; 1874 1875 bpf_mtap2(sc->sc_drvbpf, tap, sc->sc_rxtap_len, m, BPF_D_IN); 1876 } 1877 1878 /* trim FCS */ 1879 m_adj(m, -IEEE80211_CRC_LEN); 1880 1881 wh = mtod(m, struct ieee80211_frame *); 1882 ni = ieee80211_find_rxnode(ic, (struct ieee80211_frame_min *)wh); 1883 1884 /* push the frame up to the 802.11 stack */ 1885 ieee80211_input(ic, m, ni, rxdesc->rssi, 0); 1886 1887 /* node is no longer needed */ 1888 ieee80211_free_node(ni); 1889 1890 splx(s); 1891 1892 DPRINTF(3, "%s: RX done\n", device_xname(sc->sc_dev)); 1893 } 1894 1895 static void 1896 upgt_setup_rates(struct upgt_softc *sc) 1897 { 1898 struct ieee80211com *ic = &sc->sc_ic; 1899 1900 /* 1901 * 0x01 = OFMD6 0x10 = DS1 1902 * 0x04 = OFDM9 0x11 = DS2 1903 * 0x06 = OFDM12 0x12 = DS5 1904 * 0x07 = OFDM18 0x13 = DS11 1905 * 0x08 = OFDM24 1906 * 0x09 = OFDM36 1907 * 0x0a = OFDM48 1908 * 0x0b = OFDM54 1909 */ 1910 const uint8_t rateset_auto_11b[] = 1911 { 0x13, 0x13, 0x12, 0x11, 0x11, 0x10, 0x10, 0x10 }; 1912 const uint8_t rateset_auto_11g[] = 1913 { 0x0b, 0x0a, 0x09, 0x08, 0x07, 0x06, 0x04, 0x01 }; 1914 const uint8_t rateset_fix_11bg[] = 1915 { 0x10, 0x11, 0x12, 0x13, 0x01, 0x04, 0x06, 0x07, 1916 0x08, 0x09, 0x0a, 0x0b }; 1917 1918 if (ic->ic_fixed_rate == IEEE80211_FIXED_RATE_NONE) { 1919 /* 1920 * Automatic rate control is done by the device. 1921 * We just pass the rateset from which the device 1922 * will pickup a rate. 1923 */ 1924 if (ic->ic_curmode == IEEE80211_MODE_11B) 1925 memcpy(sc->sc_cur_rateset, rateset_auto_11b, 1926 sizeof(sc->sc_cur_rateset)); 1927 if (ic->ic_curmode == IEEE80211_MODE_11G || 1928 ic->ic_curmode == IEEE80211_MODE_AUTO) 1929 memcpy(sc->sc_cur_rateset, rateset_auto_11g, 1930 sizeof(sc->sc_cur_rateset)); 1931 } else { 1932 /* set a fixed rate */ 1933 memset(sc->sc_cur_rateset, rateset_fix_11bg[ic->ic_fixed_rate], 1934 sizeof(sc->sc_cur_rateset)); 1935 } 1936 } 1937 1938 static uint8_t 1939 upgt_rx_rate(struct upgt_softc *sc, const int rate) 1940 { 1941 struct ieee80211com *ic = &sc->sc_ic; 1942 1943 if (ic->ic_curmode == IEEE80211_MODE_11B) { 1944 if (rate < 0 || rate > 3) 1945 /* invalid rate */ 1946 return 0; 1947 1948 switch (rate) { 1949 case 0: 1950 return 2; 1951 case 1: 1952 return 4; 1953 case 2: 1954 return 11; 1955 case 3: 1956 return 22; 1957 default: 1958 return 0; 1959 } 1960 } 1961 1962 if (ic->ic_curmode == IEEE80211_MODE_11G) { 1963 if (rate < 0 || rate > 11) 1964 /* invalid rate */ 1965 return 0; 1966 1967 switch (rate) { 1968 case 0: 1969 return 2; 1970 case 1: 1971 return 4; 1972 case 2: 1973 return 11; 1974 case 3: 1975 return 22; 1976 case 4: 1977 return 12; 1978 case 5: 1979 return 18; 1980 case 6: 1981 return 24; 1982 case 7: 1983 return 36; 1984 case 8: 1985 return 48; 1986 case 9: 1987 return 72; 1988 case 10: 1989 return 96; 1990 case 11: 1991 return 108; 1992 default: 1993 return 0; 1994 } 1995 } 1996 1997 return 0; 1998 } 1999 2000 static int 2001 upgt_set_macfilter(struct upgt_softc *sc, uint8_t state) 2002 { 2003 struct ieee80211com *ic = &sc->sc_ic; 2004 struct ieee80211_node *ni = ic->ic_bss; 2005 struct upgt_data *data_cmd = &sc->cmd_data; 2006 struct upgt_lmac_mem *mem; 2007 struct upgt_lmac_filter *filter; 2008 int len; 2009 const uint8_t broadcast[] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }; 2010 2011 /* 2012 * Transmit the URB containing the CMD data. 2013 */ 2014 len = sizeof(*mem) + sizeof(*filter); 2015 2016 memset(data_cmd->buf, 0, len); 2017 2018 mem = (struct upgt_lmac_mem *)data_cmd->buf; 2019 mem->addr = htole32(sc->sc_memaddr_frame_start + 2020 UPGT_MEMSIZE_FRAME_HEAD); 2021 2022 filter = (struct upgt_lmac_filter *)(mem + 1); 2023 2024 filter->header1.flags = UPGT_H1_FLAGS_TX_NO_CALLBACK; 2025 filter->header1.type = UPGT_H1_TYPE_CTRL; 2026 filter->header1.len = htole16( 2027 sizeof(struct upgt_lmac_filter) - 2028 sizeof(struct upgt_lmac_header)); 2029 2030 filter->header2.reqid = htole32(sc->sc_memaddr_frame_start); 2031 filter->header2.type = htole16(UPGT_H2_TYPE_MACFILTER); 2032 filter->header2.flags = 0; 2033 2034 switch (state) { 2035 case IEEE80211_S_INIT: 2036 DPRINTF(1, "%s: set MAC filter to INIT\n", 2037 device_xname(sc->sc_dev)); 2038 2039 filter->type = htole16(UPGT_FILTER_TYPE_RESET); 2040 break; 2041 case IEEE80211_S_SCAN: 2042 DPRINTF(1, "%s: set MAC filter to SCAN (bssid %s)\n", 2043 device_xname(sc->sc_dev), ether_sprintf(broadcast)); 2044 2045 filter->type = htole16(UPGT_FILTER_TYPE_NONE); 2046 IEEE80211_ADDR_COPY(filter->dst, ic->ic_myaddr); 2047 IEEE80211_ADDR_COPY(filter->src, broadcast); 2048 filter->unknown1 = htole16(UPGT_FILTER_UNKNOWN1); 2049 filter->rxaddr = htole32(sc->sc_memaddr_rx_start); 2050 filter->unknown2 = htole16(UPGT_FILTER_UNKNOWN2); 2051 filter->rxhw = htole32(sc->sc_eeprom_hwrx); 2052 filter->unknown3 = htole16(UPGT_FILTER_UNKNOWN3); 2053 break; 2054 case IEEE80211_S_RUN: 2055 DPRINTF(1, "%s: set MAC filter to RUN (bssid %s)\n", 2056 device_xname(sc->sc_dev), ether_sprintf(ni->ni_bssid)); 2057 2058 filter->type = htole16(UPGT_FILTER_TYPE_STA); 2059 IEEE80211_ADDR_COPY(filter->dst, ic->ic_myaddr); 2060 IEEE80211_ADDR_COPY(filter->src, ni->ni_bssid); 2061 filter->unknown1 = htole16(UPGT_FILTER_UNKNOWN1); 2062 filter->rxaddr = htole32(sc->sc_memaddr_rx_start); 2063 filter->unknown2 = htole16(UPGT_FILTER_UNKNOWN2); 2064 filter->rxhw = htole32(sc->sc_eeprom_hwrx); 2065 filter->unknown3 = htole16(UPGT_FILTER_UNKNOWN3); 2066 break; 2067 default: 2068 aprint_error_dev(sc->sc_dev, 2069 "MAC filter does not know that state\n"); 2070 break; 2071 } 2072 2073 mem->chksum = upgt_chksum_le((uint32_t *)filter, sizeof(*filter)); 2074 2075 if (upgt_bulk_xmit(sc, data_cmd, sc->sc_tx_pipeh, &len, 0) != 0) { 2076 aprint_error_dev(sc->sc_dev, 2077 "could not transmit macfilter CMD data URB\n"); 2078 return EIO; 2079 } 2080 2081 return 0; 2082 } 2083 2084 static int 2085 upgt_set_channel(struct upgt_softc *sc, unsigned channel) 2086 { 2087 struct upgt_data *data_cmd = &sc->cmd_data; 2088 struct upgt_lmac_mem *mem; 2089 struct upgt_lmac_channel *chan; 2090 int len; 2091 2092 DPRINTF(1, "%s: %s: %d\n", device_xname(sc->sc_dev), __func__, 2093 channel); 2094 2095 /* 2096 * Transmit the URB containing the CMD data. 2097 */ 2098 len = sizeof(*mem) + sizeof(*chan); 2099 2100 memset(data_cmd->buf, 0, len); 2101 2102 mem = (struct upgt_lmac_mem *)data_cmd->buf; 2103 mem->addr = htole32(sc->sc_memaddr_frame_start + 2104 UPGT_MEMSIZE_FRAME_HEAD); 2105 2106 chan = (struct upgt_lmac_channel *)(mem + 1); 2107 2108 chan->header1.flags = UPGT_H1_FLAGS_TX_NO_CALLBACK; 2109 chan->header1.type = UPGT_H1_TYPE_CTRL; 2110 chan->header1.len = htole16( 2111 sizeof(struct upgt_lmac_channel) - 2112 sizeof(struct upgt_lmac_header)); 2113 2114 chan->header2.reqid = htole32(sc->sc_memaddr_frame_start); 2115 chan->header2.type = htole16(UPGT_H2_TYPE_CHANNEL); 2116 chan->header2.flags = 0; 2117 2118 chan->unknown1 = htole16(UPGT_CHANNEL_UNKNOWN1); 2119 chan->unknown2 = htole16(UPGT_CHANNEL_UNKNOWN2); 2120 chan->freq6 = sc->sc_eeprom_freq6[channel]; 2121 chan->settings = sc->sc_eeprom_freq6_settings; 2122 chan->unknown3 = UPGT_CHANNEL_UNKNOWN3; 2123 2124 memcpy(chan->freq3_1, &sc->sc_eeprom_freq3[channel].data, 2125 sizeof(chan->freq3_1)); 2126 2127 memcpy(chan->freq4, &sc->sc_eeprom_freq4[channel], 2128 sizeof(sc->sc_eeprom_freq4[channel])); 2129 2130 memcpy(chan->freq3_2, &sc->sc_eeprom_freq3[channel].data, 2131 sizeof(chan->freq3_2)); 2132 2133 mem->chksum = upgt_chksum_le((uint32_t *)chan, sizeof(*chan)); 2134 2135 if (upgt_bulk_xmit(sc, data_cmd, sc->sc_tx_pipeh, &len, 0) != 0) { 2136 aprint_error_dev(sc->sc_dev, 2137 "could not transmit channel CMD data URB\n"); 2138 return EIO; 2139 } 2140 2141 return 0; 2142 } 2143 2144 static void 2145 upgt_set_led(struct upgt_softc *sc, int action) 2146 { 2147 struct ieee80211com *ic = &sc->sc_ic; 2148 struct upgt_data *data_cmd = &sc->cmd_data; 2149 struct upgt_lmac_mem *mem; 2150 struct upgt_lmac_led *led; 2151 struct timeval t; 2152 int len; 2153 2154 /* 2155 * Transmit the URB containing the CMD data. 2156 */ 2157 len = sizeof(*mem) + sizeof(*led); 2158 2159 memset(data_cmd->buf, 0, len); 2160 2161 mem = (struct upgt_lmac_mem *)data_cmd->buf; 2162 mem->addr = htole32(sc->sc_memaddr_frame_start + 2163 UPGT_MEMSIZE_FRAME_HEAD); 2164 2165 led = (struct upgt_lmac_led *)(mem + 1); 2166 2167 led->header1.flags = UPGT_H1_FLAGS_TX_NO_CALLBACK; 2168 led->header1.type = UPGT_H1_TYPE_CTRL; 2169 led->header1.len = htole16( 2170 sizeof(struct upgt_lmac_led) - 2171 sizeof(struct upgt_lmac_header)); 2172 2173 led->header2.reqid = htole32(sc->sc_memaddr_frame_start); 2174 led->header2.type = htole16(UPGT_H2_TYPE_LED); 2175 led->header2.flags = 0; 2176 2177 switch (action) { 2178 case UPGT_LED_OFF: 2179 led->mode = htole16(UPGT_LED_MODE_SET); 2180 led->action_fix = 0; 2181 led->action_tmp = htole16(UPGT_LED_ACTION_OFF); 2182 led->action_tmp_dur = 0; 2183 break; 2184 case UPGT_LED_ON: 2185 led->mode = htole16(UPGT_LED_MODE_SET); 2186 led->action_fix = 0; 2187 led->action_tmp = htole16(UPGT_LED_ACTION_ON); 2188 led->action_tmp_dur = 0; 2189 break; 2190 case UPGT_LED_BLINK: 2191 if (ic->ic_state != IEEE80211_S_RUN) 2192 return; 2193 if (sc->sc_led_blink) 2194 /* previous blink was not finished */ 2195 return; 2196 led->mode = htole16(UPGT_LED_MODE_SET); 2197 led->action_fix = htole16(UPGT_LED_ACTION_OFF); 2198 led->action_tmp = htole16(UPGT_LED_ACTION_ON); 2199 led->action_tmp_dur = htole16(UPGT_LED_ACTION_TMP_DUR); 2200 /* lock blink */ 2201 sc->sc_led_blink = 1; 2202 t.tv_sec = 0; 2203 t.tv_usec = UPGT_LED_ACTION_TMP_DUR * 1000L; 2204 callout_schedule(&sc->led_to, tvtohz(&t)); 2205 break; 2206 default: 2207 return; 2208 } 2209 2210 mem->chksum = upgt_chksum_le((uint32_t *)led, sizeof(*led)); 2211 2212 if (upgt_bulk_xmit(sc, data_cmd, sc->sc_tx_pipeh, &len, 0) != 0) { 2213 aprint_error_dev(sc->sc_dev, 2214 "could not transmit led CMD URB\n"); 2215 } 2216 } 2217 2218 static void 2219 upgt_set_led_blink(void *arg) 2220 { 2221 struct upgt_softc *sc = arg; 2222 2223 /* blink finished, we are ready for a next one */ 2224 sc->sc_led_blink = 0; 2225 callout_stop(&sc->led_to); 2226 } 2227 2228 static int 2229 upgt_get_stats(struct upgt_softc *sc) 2230 { 2231 struct upgt_data *data_cmd = &sc->cmd_data; 2232 struct upgt_lmac_mem *mem; 2233 struct upgt_lmac_stats *stats; 2234 int len; 2235 2236 /* 2237 * Transmit the URB containing the CMD data. 2238 */ 2239 len = sizeof(*mem) + sizeof(*stats); 2240 2241 memset(data_cmd->buf, 0, len); 2242 2243 mem = (struct upgt_lmac_mem *)data_cmd->buf; 2244 mem->addr = htole32(sc->sc_memaddr_frame_start + 2245 UPGT_MEMSIZE_FRAME_HEAD); 2246 2247 stats = (struct upgt_lmac_stats *)(mem + 1); 2248 2249 stats->header1.flags = 0; 2250 stats->header1.type = UPGT_H1_TYPE_CTRL; 2251 stats->header1.len = htole16( 2252 sizeof(struct upgt_lmac_stats) - 2253 sizeof(struct upgt_lmac_header)); 2254 2255 stats->header2.reqid = htole32(sc->sc_memaddr_frame_start); 2256 stats->header2.type = htole16(UPGT_H2_TYPE_STATS); 2257 stats->header2.flags = 0; 2258 2259 mem->chksum = upgt_chksum_le((uint32_t *)stats, sizeof(*stats)); 2260 2261 if (upgt_bulk_xmit(sc, data_cmd, sc->sc_tx_pipeh, &len, 0) != 0) { 2262 aprint_error_dev(sc->sc_dev, 2263 "could not transmit statistics CMD data URB\n"); 2264 return EIO; 2265 } 2266 2267 return 0; 2268 2269 } 2270 2271 static int 2272 upgt_alloc_tx(struct upgt_softc *sc) 2273 { 2274 int i; 2275 2276 sc->tx_queued = 0; 2277 2278 for (i = 0; i < UPGT_TX_COUNT; i++) { 2279 struct upgt_data *data_tx = &sc->tx_data[i]; 2280 2281 data_tx->sc = sc; 2282 2283 int err = usbd_create_xfer(sc->sc_tx_pipeh, MCLBYTES, 2284 USBD_FORCE_SHORT_XFER, 0, &data_tx->xfer); 2285 if (err) { 2286 aprint_error_dev(sc->sc_dev, 2287 "could not allocate TX xfer\n"); 2288 return err; 2289 } 2290 2291 data_tx->buf = usbd_get_buffer(data_tx->xfer); 2292 } 2293 2294 return 0; 2295 } 2296 2297 static int 2298 upgt_alloc_rx(struct upgt_softc *sc) 2299 { 2300 struct upgt_data *data_rx = &sc->rx_data; 2301 2302 data_rx->sc = sc; 2303 2304 int err = usbd_create_xfer(sc->sc_rx_pipeh, MCLBYTES, 2305 0, 0, &data_rx->xfer); 2306 if (err) { 2307 aprint_error_dev(sc->sc_dev, "could not allocate RX xfer\n"); 2308 return err; 2309 } 2310 2311 data_rx->buf = usbd_get_buffer(data_rx->xfer); 2312 2313 return 0; 2314 } 2315 2316 static int 2317 upgt_alloc_cmd(struct upgt_softc *sc) 2318 { 2319 struct upgt_data *data_cmd = &sc->cmd_data; 2320 2321 data_cmd->sc = sc; 2322 2323 int err = usbd_create_xfer(sc->sc_tx_pipeh, MCLBYTES, 2324 USBD_FORCE_SHORT_XFER, 0, &data_cmd->xfer); 2325 if (err) { 2326 aprint_error_dev(sc->sc_dev, "could not allocate RX xfer\n"); 2327 return err; 2328 } 2329 2330 data_cmd->buf = usbd_get_buffer(data_cmd->xfer); 2331 2332 cv_init(&sc->sc_cv, "upgteeprom"); 2333 mutex_init(&sc->sc_mtx, MUTEX_DEFAULT, IPL_NONE); 2334 2335 return 0; 2336 } 2337 2338 static void 2339 upgt_free_tx(struct upgt_softc *sc) 2340 { 2341 int i; 2342 2343 for (i = 0; i < UPGT_TX_COUNT; i++) { 2344 struct upgt_data *data_tx = &sc->tx_data[i]; 2345 2346 if (data_tx->xfer != NULL) { 2347 usbd_destroy_xfer(data_tx->xfer); 2348 data_tx->xfer = NULL; 2349 } 2350 2351 data_tx->ni = NULL; 2352 } 2353 } 2354 2355 static void 2356 upgt_free_rx(struct upgt_softc *sc) 2357 { 2358 struct upgt_data *data_rx = &sc->rx_data; 2359 2360 if (data_rx->xfer != NULL) { 2361 usbd_destroy_xfer(data_rx->xfer); 2362 data_rx->xfer = NULL; 2363 } 2364 2365 data_rx->ni = NULL; 2366 } 2367 2368 static void 2369 upgt_free_cmd(struct upgt_softc *sc) 2370 { 2371 struct upgt_data *data_cmd = &sc->cmd_data; 2372 2373 if (data_cmd->xfer != NULL) { 2374 usbd_destroy_xfer(data_cmd->xfer); 2375 data_cmd->xfer = NULL; 2376 } 2377 2378 mutex_destroy(&sc->sc_mtx); 2379 cv_destroy(&sc->sc_cv); 2380 } 2381 2382 static int 2383 upgt_bulk_xmit(struct upgt_softc *sc, struct upgt_data *data, 2384 struct usbd_pipe *pipeh, uint32_t *size, int flags) 2385 { 2386 usbd_status status; 2387 2388 status = usbd_bulk_transfer(data->xfer, pipeh, flags, UPGT_USB_TIMEOUT, 2389 data->buf, size); 2390 if (status != USBD_NORMAL_COMPLETION) { 2391 aprint_error_dev(sc->sc_dev, "%s: error %s\n", __func__, 2392 usbd_errstr(status)); 2393 return EIO; 2394 } 2395 2396 return 0; 2397 } 2398 2399 #if 0 2400 static void 2401 upgt_hexdump(void *buf, int len) 2402 { 2403 int i; 2404 2405 for (i = 0; i < len; i++) { 2406 if (i % 16 == 0) 2407 printf("%s%5i:", i ? "\n" : "", i); 2408 if (i % 4 == 0) 2409 printf(" "); 2410 printf("%02x", (int)*((uint8_t *)buf + i)); 2411 } 2412 printf("\n"); 2413 } 2414 #endif 2415 2416 static uint32_t 2417 upgt_crc32_le(const void *buf, size_t size) 2418 { 2419 uint32_t crc; 2420 2421 crc = ether_crc32_le(buf, size); 2422 2423 /* apply final XOR value as common for CRC-32 */ 2424 crc = htole32(crc ^ 0xffffffffU); 2425 2426 return crc; 2427 } 2428 2429 /* 2430 * The firmware awaits a checksum for each frame we send to it. 2431 * The algorithm used is uncommon but somehow similar to CRC32. 2432 */ 2433 static uint32_t 2434 upgt_chksum_le(const uint32_t *buf, size_t size) 2435 { 2436 int i; 2437 uint32_t crc = 0; 2438 2439 for (i = 0; i < size; i += sizeof(uint32_t)) { 2440 crc = htole32(crc ^ *buf++); 2441 crc = htole32((crc >> 5) ^ (crc << 3)); 2442 } 2443 2444 return crc; 2445 } 2446
Indexes created Thu Oct 02 14:10:14 GMT 2025