1 /* $NetBSD: if_upgt.c,v 1.3 2010/08/25 12:43:56 tsutsui 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@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 1.3 2010/08/25 12:43:56 tsutsui Exp $"); 22 23 #include <sys/param.h> 24 #include <sys/callout.h> 25 #include <sys/device.h> 26 #include <sys/errno.h> 27 #include <sys/kernel.h> 28 #include <sys/kthread.h> 29 #include <sys/mbuf.h> 30 #include <sys/proc.h> 31 #include <sys/sockio.h> 32 #include <sys/systm.h> 33 #include <sys/vnode.h> 34 35 #include <sys/bus.h> 36 #include <sys/endian.h> 37 #include <sys/intr.h> 38 39 #include <net/bpf.h> 40 #include <net/if.h> 41 #include <net/if_arp.h> 42 #include <net/if_dl.h> 43 #include <net/if_ether.h> 44 #include <net/if_media.h> 45 #include <net/if_types.h> 46 47 #include <net80211/ieee80211_var.h> 48 #include <net80211/ieee80211_radiotap.h> 49 50 #include <dev/firmload.h> 51 52 #include <dev/usb/usb.h> 53 #include <dev/usb/usbdi.h> 54 #include <dev/usb/usbdi_util.h> 55 #include <dev/usb/usbdevs.h> 56 57 #include <dev/usb/if_upgtvar.h> 58 59 /* 60 * Driver for the USB PrismGT devices. 61 * 62 * For now just USB 2.0 devices with the GW3887 chipset are supported. 63 * The driver has been written based on the firmware version 2.13.1.0_LM87. 64 * 65 * TODO's: 66 * - Fix MONITOR mode (MAC filter). 67 * - Add HOSTAP mode. 68 * - Add IBSS mode. 69 * - Support the USB 1.0 devices (NET2280, ISL3880, ISL3886 chipsets). 70 * 71 * Parts of this driver has been influenced by reading the p54u driver 72 * written by Jean-Baptiste Note <jean-baptiste.note@m4x.org> and 73 * Sebastien Bourdeauducq <lekernel@prism54.org>. 74 */ 75 76 #ifdef UPGT_DEBUG 77 int upgt_debug = 2; 78 #define DPRINTF(l, x...) do { if ((l) <= upgt_debug) printf(x); } while (0) 79 #else 80 #define DPRINTF(l, x...) 81 #endif 82 83 /* 84 * Prototypes. 85 */ 86 static int upgt_match(device_t, cfdata_t, void *); 87 static void upgt_attach(device_t, device_t, void *); 88 static int upgt_detach(device_t, int); 89 static int upgt_activate(device_t, devact_t); 90 91 static void upgt_attach_hook(device_t); 92 static int upgt_device_type(struct upgt_softc *, uint16_t, uint16_t); 93 static int upgt_device_init(struct upgt_softc *); 94 static int upgt_mem_init(struct upgt_softc *); 95 static uint32_t upgt_mem_alloc(struct upgt_softc *); 96 static void upgt_mem_free(struct upgt_softc *, uint32_t); 97 static int upgt_fw_alloc(struct upgt_softc *); 98 static void upgt_fw_free(struct upgt_softc *); 99 static int upgt_fw_verify(struct upgt_softc *); 100 static int upgt_fw_load(struct upgt_softc *); 101 static int upgt_fw_copy(char *, char *, int); 102 static int upgt_eeprom_read(struct upgt_softc *); 103 static int upgt_eeprom_parse(struct upgt_softc *); 104 static void upgt_eeprom_parse_hwrx(struct upgt_softc *, uint8_t *); 105 static void upgt_eeprom_parse_freq3(struct upgt_softc *, uint8_t *, int); 106 static void upgt_eeprom_parse_freq4(struct upgt_softc *, uint8_t *, int); 107 static void upgt_eeprom_parse_freq6(struct upgt_softc *, uint8_t *, int); 108 109 static int upgt_ioctl(struct ifnet *, u_long, void *); 110 static int upgt_init(struct ifnet *); 111 static void upgt_stop(struct upgt_softc *); 112 static int upgt_media_change(struct ifnet *); 113 static void upgt_newassoc(struct ieee80211_node *, int); 114 static int upgt_newstate(struct ieee80211com *, enum ieee80211_state, 115 int); 116 static void upgt_newstate_task(void *); 117 static void upgt_next_scan(void *); 118 static void upgt_start(struct ifnet *); 119 static void upgt_watchdog(struct ifnet *); 120 static void upgt_tx_task(void *); 121 static void upgt_tx_done(struct upgt_softc *, uint8_t *); 122 static void upgt_rx_cb(usbd_xfer_handle, usbd_private_handle, usbd_status); 123 static void upgt_rx(struct upgt_softc *, uint8_t *, int); 124 static void upgt_setup_rates(struct upgt_softc *); 125 static uint8_t upgt_rx_rate(struct upgt_softc *, const int); 126 static int upgt_set_macfilter(struct upgt_softc *, uint8_t state); 127 static int upgt_set_channel(struct upgt_softc *, unsigned); 128 static void upgt_set_led(struct upgt_softc *, int); 129 static void upgt_set_led_blink(void *); 130 static int upgt_get_stats(struct upgt_softc *); 131 132 static int upgt_alloc_tx(struct upgt_softc *); 133 static int upgt_alloc_rx(struct upgt_softc *); 134 static int upgt_alloc_cmd(struct upgt_softc *); 135 static void upgt_free_tx(struct upgt_softc *); 136 static void upgt_free_rx(struct upgt_softc *); 137 static void upgt_free_cmd(struct upgt_softc *); 138 static int upgt_bulk_xmit(struct upgt_softc *, struct upgt_data *, 139 usbd_pipe_handle, uint32_t *, int); 140 141 #if 0 142 static void upgt_hexdump(void *, int); 143 #endif 144 static uint32_t upgt_crc32_le(const void *, size_t); 145 static uint32_t upgt_chksum_le(const uint32_t *, size_t); 146 147 CFATTACH_DECL_NEW(upgt, sizeof(struct upgt_softc), 148 upgt_match, upgt_attach, upgt_detach, upgt_activate); 149 150 static const struct usb_devno upgt_devs_1[] = { 151 /* version 1 devices */ 152 { USB_VENDOR_ALCATELT, USB_PRODUCT_ALCATELT_ST120G } 153 }; 154 155 static const struct usb_devno upgt_devs_2[] = { 156 /* version 2 devices */ 157 { USB_VENDOR_ACCTON, USB_PRODUCT_ACCTON_PRISM_GT }, 158 { USB_VENDOR_ALCATELT, USB_PRODUCT_ALCATELT_ST121G }, 159 { USB_VENDOR_BELKIN, USB_PRODUCT_BELKIN_F5D7050 }, 160 { USB_VENDOR_CISCOLINKSYS, USB_PRODUCT_CISCOLINKSYS_WUSB54AG }, 161 { USB_VENDOR_CISCOLINKSYS, USB_PRODUCT_CISCOLINKSYS_WUSB54GV2 }, 162 { USB_VENDOR_CONCEPTRONIC2, USB_PRODUCT_CONCEPTRONIC2_PRISM_GT }, 163 { USB_VENDOR_COREGA, USB_PRODUCT_COREGA_CGWLUSB2GTST }, 164 { USB_VENDOR_DELL, USB_PRODUCT_DELL_PRISM_GT_1 }, 165 { USB_VENDOR_DELL, USB_PRODUCT_DELL_PRISM_GT_2 }, 166 { USB_VENDOR_DLINK, USB_PRODUCT_DLINK_DWLG122A2 }, 167 { USB_VENDOR_FSC, USB_PRODUCT_FSC_E5400 }, 168 { USB_VENDOR_GLOBESPAN, USB_PRODUCT_GLOBESPAN_PRISM_GT_1 }, 169 { USB_VENDOR_GLOBESPAN, USB_PRODUCT_GLOBESPAN_PRISM_GT_2 }, 170 { USB_VENDOR_INTERSIL, USB_PRODUCT_INTERSIL_PRISM_GT }, 171 { USB_VENDOR_PHEENET, USB_PRODUCT_PHEENET_GWU513 }, 172 { USB_VENDOR_PHILIPS, USB_PRODUCT_PHILIPS_CPWUA054 }, 173 { USB_VENDOR_SHARP, USB_PRODUCT_SHARP_RUITZ1016YCZZ }, 174 { USB_VENDOR_SMC, USB_PRODUCT_SMC_2862WG }, 175 { USB_VENDOR_USR, USB_PRODUCT_USR_USR5422 }, 176 { USB_VENDOR_WISTRONNEWEB, USB_PRODUCT_WISTRONNEWEB_UR045G }, 177 { USB_VENDOR_XYRATEX, USB_PRODUCT_XYRATEX_PRISM_GT_1 }, 178 { USB_VENDOR_XYRATEX, USB_PRODUCT_XYRATEX_PRISM_GT_2 }, 179 { USB_VENDOR_ZCOM, USB_PRODUCT_ZCOM_MD40900 }, 180 { USB_VENDOR_ZCOM, USB_PRODUCT_ZCOM_XG703A } 181 }; 182 183 static int 184 firmware_load(const char *dname, const char *iname, uint8_t **ucodep, 185 size_t *sizep) 186 { 187 firmware_handle_t fh; 188 int error; 189 190 if ((error = firmware_open(dname, iname, &fh)) != 0) 191 return error; 192 *sizep = firmware_get_size(fh); 193 if ((*ucodep = firmware_malloc(*sizep)) == NULL) { 194 firmware_close(fh); 195 return ENOMEM; 196 } 197 if ((error = firmware_read(fh, 0, *ucodep, *sizep)) != 0) 198 firmware_free(*ucodep, *sizep); 199 firmware_close(fh); 200 201 return error; 202 } 203 204 static int 205 upgt_match(device_t parent, cfdata_t match, void *aux) 206 { 207 struct usb_attach_arg *uaa = aux; 208 209 if (usb_lookup(upgt_devs_1, uaa->vendor, uaa->product) != NULL) 210 return UMATCH_VENDOR_PRODUCT; 211 212 if (usb_lookup(upgt_devs_2, uaa->vendor, uaa->product) != NULL) 213 return UMATCH_VENDOR_PRODUCT; 214 215 return UMATCH_NONE; 216 } 217 218 static void 219 upgt_attach(device_t parent, device_t self, void *aux) 220 { 221 struct upgt_softc *sc = device_private(self); 222 struct usb_attach_arg *uaa = aux; 223 usb_interface_descriptor_t *id; 224 usb_endpoint_descriptor_t *ed; 225 usbd_status error; 226 char *devinfop; 227 int i; 228 229 aprint_naive("\n"); 230 aprint_normal("\n"); 231 232 /* 233 * Attach USB device. 234 */ 235 sc->sc_dev = self; 236 sc->sc_udev = uaa->device; 237 238 devinfop = usbd_devinfo_alloc(sc->sc_udev, 0); 239 aprint_normal_dev(sc->sc_dev, "%s\n", devinfop); 240 usbd_devinfo_free(devinfop); 241 242 /* check device type */ 243 if (upgt_device_type(sc, uaa->vendor, uaa->product) != 0) 244 return; 245 246 /* set configuration number */ 247 if (usbd_set_config_no(sc->sc_udev, UPGT_CONFIG_NO, 0) != 0) { 248 aprint_error_dev(sc->sc_dev, 249 "could not set configuration no\n"); 250 return; 251 } 252 253 /* get the first interface handle */ 254 error = usbd_device2interface_handle(sc->sc_udev, UPGT_IFACE_INDEX, 255 &sc->sc_iface); 256 if (error != 0) { 257 aprint_error_dev(sc->sc_dev, 258 "could not get interface handle\n"); 259 return; 260 } 261 262 /* find endpoints */ 263 id = usbd_get_interface_descriptor(sc->sc_iface); 264 sc->sc_rx_no = sc->sc_tx_no = -1; 265 for (i = 0; i < id->bNumEndpoints; i++) { 266 ed = usbd_interface2endpoint_descriptor(sc->sc_iface, i); 267 if (ed == NULL) { 268 aprint_error_dev(sc->sc_dev, 269 "no endpoint descriptor for iface %d\n", i); 270 return; 271 } 272 273 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT && 274 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) 275 sc->sc_tx_no = ed->bEndpointAddress; 276 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 277 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) 278 sc->sc_rx_no = ed->bEndpointAddress; 279 280 /* 281 * 0x01 TX pipe 282 * 0x81 RX pipe 283 * 284 * Deprecated scheme (not used with fw version >2.5.6.x): 285 * 0x02 TX MGMT pipe 286 * 0x82 TX MGMT pipe 287 */ 288 if (sc->sc_tx_no != -1 && sc->sc_rx_no != -1) 289 break; 290 } 291 if (sc->sc_rx_no == -1 || sc->sc_tx_no == -1) { 292 aprint_error_dev(sc->sc_dev, "missing endpoint\n"); 293 return; 294 } 295 296 /* setup tasks and timeouts */ 297 usb_init_task(&sc->sc_task_newstate, upgt_newstate_task, sc); 298 usb_init_task(&sc->sc_task_tx, upgt_tx_task, sc); 299 callout_init(&sc->scan_to, 0); 300 callout_setfunc(&sc->scan_to, upgt_next_scan, sc); 301 callout_init(&sc->led_to, 0); 302 callout_setfunc(&sc->led_to, upgt_set_led_blink, sc); 303 304 /* 305 * Open TX and RX USB bulk pipes. 306 */ 307 error = usbd_open_pipe(sc->sc_iface, sc->sc_tx_no, USBD_EXCLUSIVE_USE, 308 &sc->sc_tx_pipeh); 309 if (error != 0) { 310 aprint_error_dev(sc->sc_dev, 311 "could not open TX pipe: %s\n", usbd_errstr(error)); 312 goto fail; 313 } 314 error = usbd_open_pipe(sc->sc_iface, sc->sc_rx_no, USBD_EXCLUSIVE_USE, 315 &sc->sc_rx_pipeh); 316 if (error != 0) { 317 aprint_error_dev(sc->sc_dev, "could not open RX pipe: %s\n", 318 usbd_errstr(error)); 319 goto fail; 320 } 321 322 /* 323 * Allocate TX, RX, and CMD xfers. 324 */ 325 if (upgt_alloc_tx(sc) != 0) 326 goto fail; 327 if (upgt_alloc_rx(sc) != 0) 328 goto fail; 329 if (upgt_alloc_cmd(sc) != 0) 330 goto fail; 331 332 /* 333 * We need the firmware loaded from file system to complete the attach. 334 */ 335 config_mountroot(self, upgt_attach_hook); 336 337 return; 338 fail: 339 aprint_error_dev(sc->sc_dev, "%s failed\n", __func__); 340 } 341 342 static void 343 upgt_attach_hook(device_t arg) 344 { 345 struct upgt_softc *sc = device_private(arg); 346 struct ieee80211com *ic = &sc->sc_ic; 347 struct ifnet *ifp = &sc->sc_if; 348 usbd_status error; 349 int i; 350 351 /* 352 * Load firmware file into memory. 353 */ 354 if (upgt_fw_alloc(sc) != 0) 355 goto fail; 356 357 /* 358 * Initialize the device. 359 */ 360 if (upgt_device_init(sc) != 0) 361 goto fail; 362 363 /* 364 * Verify the firmware. 365 */ 366 if (upgt_fw_verify(sc) != 0) 367 goto fail; 368 369 /* 370 * Calculate device memory space. 371 */ 372 if (sc->sc_memaddr_frame_start == 0 || sc->sc_memaddr_frame_end == 0) { 373 aprint_error_dev(sc->sc_dev, 374 "could not find memory space addresses on FW\n"); 375 goto fail; 376 } 377 sc->sc_memaddr_frame_end -= UPGT_MEMSIZE_RX + 1; 378 sc->sc_memaddr_rx_start = sc->sc_memaddr_frame_end + 1; 379 380 DPRINTF(1, "%s: memory address frame start=0x%08x\n", 381 device_xname(sc->sc_dev), sc->sc_memaddr_frame_start); 382 DPRINTF(1, "%s: memory address frame end=0x%08x\n", 383 device_xname(sc->sc_dev), sc->sc_memaddr_frame_end); 384 DPRINTF(1, "%s: memory address rx start=0x%08x\n", 385 device_xname(sc->sc_dev), sc->sc_memaddr_rx_start); 386 387 upgt_mem_init(sc); 388 389 /* 390 * Load the firmware. 391 */ 392 if (upgt_fw_load(sc) != 0) 393 goto fail; 394 395 /* 396 * Startup the RX pipe. 397 */ 398 struct upgt_data *data_rx = &sc->rx_data; 399 400 usbd_setup_xfer(data_rx->xfer, sc->sc_rx_pipeh, data_rx, data_rx->buf, 401 MCLBYTES, USBD_SHORT_XFER_OK, USBD_NO_TIMEOUT, upgt_rx_cb); 402 error = usbd_transfer(data_rx->xfer); 403 if (error != USBD_NORMAL_COMPLETION && error != USBD_IN_PROGRESS) { 404 aprint_error_dev(sc->sc_dev, 405 "could not queue RX transfer\n"); 406 goto fail; 407 } 408 usbd_delay_ms(sc->sc_udev, 100); 409 410 /* 411 * Read the whole EEPROM content and parse it. 412 */ 413 if (upgt_eeprom_read(sc) != 0) 414 goto fail; 415 if (upgt_eeprom_parse(sc) != 0) 416 goto fail; 417 418 /* 419 * Setup the 802.11 device. 420 */ 421 ic->ic_ifp = ifp; 422 ic->ic_phytype = IEEE80211_T_OFDM; 423 ic->ic_opmode = IEEE80211_M_STA; 424 ic->ic_state = IEEE80211_S_INIT; 425 ic->ic_caps = 426 IEEE80211_C_MONITOR | 427 IEEE80211_C_SHPREAMBLE | 428 IEEE80211_C_SHSLOT; 429 430 ic->ic_sup_rates[IEEE80211_MODE_11B] = ieee80211_std_rateset_11b; 431 ic->ic_sup_rates[IEEE80211_MODE_11G] = ieee80211_std_rateset_11g; 432 433 for (i = 1; i <= 14; i++) { 434 ic->ic_channels[i].ic_freq = 435 ieee80211_ieee2mhz(i, IEEE80211_CHAN_2GHZ); 436 ic->ic_channels[i].ic_flags = 437 IEEE80211_CHAN_CCK | IEEE80211_CHAN_OFDM | 438 IEEE80211_CHAN_DYN | IEEE80211_CHAN_2GHZ; 439 } 440 441 ifp->if_softc = sc; 442 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 443 ifp->if_init = upgt_init; 444 ifp->if_ioctl = upgt_ioctl; 445 ifp->if_start = upgt_start; 446 ifp->if_watchdog = upgt_watchdog; 447 IFQ_SET_READY(&ifp->if_snd); 448 memcpy(ifp->if_xname, device_xname(sc->sc_dev), IFNAMSIZ); 449 450 if_attach(ifp); 451 ieee80211_ifattach(ic); 452 ic->ic_newassoc = upgt_newassoc; 453 454 sc->sc_newstate = ic->ic_newstate; 455 ic->ic_newstate = upgt_newstate; 456 ieee80211_media_init(ic, upgt_media_change, ieee80211_media_status); 457 458 bpf_attach2(ifp, DLT_IEEE802_11_RADIO, 459 sizeof(struct ieee80211_frame) + IEEE80211_RADIOTAP_HDRLEN, 460 &sc->sc_drvbpf); 461 462 sc->sc_rxtap_len = sizeof(sc->sc_rxtapu); 463 sc->sc_rxtap.wr_ihdr.it_len = htole16(sc->sc_rxtap_len); 464 sc->sc_rxtap.wr_ihdr.it_present = htole32(UPGT_RX_RADIOTAP_PRESENT); 465 466 sc->sc_txtap_len = sizeof(sc->sc_txtapu); 467 sc->sc_txtap.wt_ihdr.it_len = htole16(sc->sc_txtap_len); 468 sc->sc_txtap.wt_ihdr.it_present = htole32(UPGT_TX_RADIOTAP_PRESENT); 469 470 aprint_normal_dev(sc->sc_dev, "address %s\n", 471 ether_sprintf(ic->ic_myaddr)); 472 473 ieee80211_announce(ic); 474 475 usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev, sc->sc_dev); 476 477 /* device attached */ 478 sc->sc_flags |= UPGT_DEVICE_ATTACHED; 479 480 return; 481 fail: 482 aprint_error_dev(sc->sc_dev, "%s failed\n", __func__); 483 } 484 485 static int 486 upgt_detach(device_t self, int flags) 487 { 488 struct upgt_softc *sc = device_private(self); 489 struct ifnet *ifp = &sc->sc_if; 490 struct ieee80211com *ic = &sc->sc_ic; 491 int s; 492 493 DPRINTF(1, "%s: %s\n", device_xname(sc->sc_dev), __func__); 494 495 s = splnet(); 496 497 if (ifp->if_flags & IFF_RUNNING) 498 upgt_stop(sc); 499 500 /* remove tasks and timeouts */ 501 usb_rem_task(sc->sc_udev, &sc->sc_task_newstate); 502 usb_rem_task(sc->sc_udev, &sc->sc_task_tx); 503 callout_destroy(&sc->scan_to); 504 callout_destroy(&sc->led_to); 505 506 /* abort and close TX / RX pipes */ 507 if (sc->sc_tx_pipeh != NULL) { 508 usbd_abort_pipe(sc->sc_tx_pipeh); 509 usbd_close_pipe(sc->sc_tx_pipeh); 510 } 511 if (sc->sc_rx_pipeh != NULL) { 512 usbd_abort_pipe(sc->sc_rx_pipeh); 513 usbd_close_pipe(sc->sc_rx_pipeh); 514 } 515 516 /* free xfers */ 517 upgt_free_tx(sc); 518 upgt_free_rx(sc); 519 upgt_free_cmd(sc); 520 521 /* free firmware */ 522 upgt_fw_free(sc); 523 524 if (sc->sc_flags & UPGT_DEVICE_ATTACHED) { 525 /* detach interface */ 526 bpf_detach(ifp); 527 ieee80211_ifdetach(ic); 528 if_detach(ifp); 529 } 530 531 splx(s); 532 533 usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev, sc->sc_dev); 534 535 return 0; 536 } 537 538 static int 539 upgt_activate(device_t self, devact_t act) 540 { 541 struct upgt_softc *sc = device_private(self); 542 543 switch (act) { 544 case DVACT_DEACTIVATE: 545 if_deactivate(&sc->sc_if); 546 return 0; 547 default: 548 return EOPNOTSUPP; 549 } 550 } 551 552 static int 553 upgt_device_type(struct upgt_softc *sc, uint16_t vendor, uint16_t product) 554 { 555 556 if (usb_lookup(upgt_devs_1, vendor, product) != NULL) { 557 sc->sc_device_type = 1; 558 /* XXX */ 559 aprint_error_dev(sc->sc_dev, 560 "version 1 devices not supported yet\n"); 561 return 1; 562 } else 563 sc->sc_device_type = 2; 564 565 return 0; 566 } 567 568 static int 569 upgt_device_init(struct upgt_softc *sc) 570 { 571 struct upgt_data *data_cmd = &sc->cmd_data; 572 const uint8_t init_cmd[] = { 0x7e, 0x7e, 0x7e, 0x7e }; 573 int len; 574 575 len = sizeof(init_cmd); 576 memcpy(data_cmd->buf, init_cmd, len); 577 if (upgt_bulk_xmit(sc, data_cmd, sc->sc_tx_pipeh, &len, 0) != 0) { 578 aprint_error_dev(sc->sc_dev, 579 "could not send device init string\n"); 580 return EIO; 581 } 582 usbd_delay_ms(sc->sc_udev, 100); 583 584 DPRINTF(1, "%s: device initialized\n", device_xname(sc->sc_dev)); 585 586 return 0; 587 } 588 589 static int 590 upgt_mem_init(struct upgt_softc *sc) 591 { 592 int i; 593 594 for (i = 0; i < UPGT_MEMORY_MAX_PAGES; i++) { 595 sc->sc_memory.page[i].used = 0; 596 597 if (i == 0) { 598 /* 599 * The first memory page is always reserved for 600 * command data. 601 */ 602 sc->sc_memory.page[i].addr = 603 sc->sc_memaddr_frame_start + MCLBYTES; 604 } else { 605 sc->sc_memory.page[i].addr = 606 sc->sc_memory.page[i - 1].addr + MCLBYTES; 607 } 608 609 if (sc->sc_memory.page[i].addr + MCLBYTES >= 610 sc->sc_memaddr_frame_end) 611 break; 612 613 DPRINTF(2, "%s: memory address page %d=0x%08x\n", 614 device_xname(sc->sc_dev), i, sc->sc_memory.page[i].addr); 615 } 616 617 sc->sc_memory.pages = i; 618 619 DPRINTF(2, "%s: memory pages=%d\n", 620 device_xname(sc->sc_dev), sc->sc_memory.pages); 621 622 return 0; 623 } 624 625 static uint32_t 626 upgt_mem_alloc(struct upgt_softc *sc) 627 { 628 int i; 629 630 for (i = 0; i < sc->sc_memory.pages; i++) { 631 if (sc->sc_memory.page[i].used == 0) { 632 sc->sc_memory.page[i].used = 1; 633 return sc->sc_memory.page[i].addr; 634 } 635 } 636 637 return 0; 638 } 639 640 static void 641 upgt_mem_free(struct upgt_softc *sc, uint32_t addr) 642 { 643 int i; 644 645 for (i = 0; i < sc->sc_memory.pages; i++) { 646 if (sc->sc_memory.page[i].addr == addr) { 647 sc->sc_memory.page[i].used = 0; 648 return; 649 } 650 } 651 652 aprint_error_dev(sc->sc_dev, "could not free memory address 0x%08x\n", 653 addr); 654 } 655 656 657 static int 658 upgt_fw_alloc(struct upgt_softc *sc) 659 { 660 const char *name = "upgt-gw3887"; 661 int error; 662 663 if (sc->sc_fw == NULL) { 664 error = firmware_load("upgt", name, &sc->sc_fw, 665 &sc->sc_fw_size); 666 if (error != 0) { 667 if (error == ENOENT) { 668 /* 669 * The firmware file for upgt(4) is not in 670 * the default distribution due to its lisence 671 * so explicitly notify it if the firmware file 672 * is not found. 673 */ 674 aprint_error_dev(sc->sc_dev, 675 "firmware file %s is not installed\n", 676 name); 677 aprint_error_dev(sc->sc_dev, 678 "(it is not included in the default" 679 " distribution)\n"); 680 aprint_error_dev(sc->sc_dev, 681 "see upgt(4) man page for details about " 682 "firmware installation\n"); 683 } else { 684 aprint_error_dev(sc->sc_dev, 685 "could not read firmware %s\n", name); 686 } 687 return EIO; 688 } 689 } 690 691 DPRINTF(1, "%s: firmware %s allocated\n", device_xname(sc->sc_dev), 692 name); 693 694 return 0; 695 } 696 697 static void 698 upgt_fw_free(struct upgt_softc *sc) 699 { 700 701 if (sc->sc_fw != NULL) { 702 firmware_free(sc->sc_fw, sc->sc_fw_size); 703 sc->sc_fw = NULL; 704 DPRINTF(1, "%s: firmware freed\n", device_xname(sc->sc_dev)); 705 } 706 } 707 708 static int 709 upgt_fw_verify(struct upgt_softc *sc) 710 { 711 struct upgt_fw_bra_option *bra_option; 712 uint32_t bra_option_type, bra_option_len; 713 uint32_t *uc; 714 int offset, bra_end = 0; 715 716 /* 717 * Seek to beginning of Boot Record Area (BRA). 718 */ 719 for (offset = 0; offset < sc->sc_fw_size; offset += sizeof(*uc)) { 720 uc = (uint32_t *)(sc->sc_fw + offset); 721 if (*uc == 0) 722 break; 723 } 724 for (; offset < sc->sc_fw_size; offset += sizeof(*uc)) { 725 uc = (uint32_t *)(sc->sc_fw + offset); 726 if (*uc != 0) 727 break; 728 } 729 if (offset == sc->sc_fw_size) { 730 aprint_error_dev(sc->sc_dev, 731 "firmware Boot Record Area not found\n"); 732 return EIO; 733 } 734 DPRINTF(1, "%s: firmware Boot Record Area found at offset %d\n", 735 device_xname(sc->sc_dev), offset); 736 737 /* 738 * Parse Boot Record Area (BRA) options. 739 */ 740 while (offset < sc->sc_fw_size && bra_end == 0) { 741 /* get current BRA option */ 742 bra_option = (struct upgt_fw_bra_option *)(sc->sc_fw + offset); 743 bra_option_type = le32toh(bra_option->type); 744 bra_option_len = le32toh(bra_option->len) * sizeof(*uc); 745 746 switch (bra_option_type) { 747 case UPGT_BRA_TYPE_FW: 748 DPRINTF(1, "%s: UPGT_BRA_TYPE_FW len=%d\n", 749 device_xname(sc->sc_dev), bra_option_len); 750 751 if (bra_option_len != UPGT_BRA_FWTYPE_SIZE) { 752 aprint_error_dev(sc->sc_dev, 753 "wrong UPGT_BRA_TYPE_FW len\n"); 754 return EIO; 755 } 756 if (memcmp(UPGT_BRA_FWTYPE_LM86, bra_option->data, 757 bra_option_len) == 0) { 758 sc->sc_fw_type = UPGT_FWTYPE_LM86; 759 break; 760 } 761 if (memcmp(UPGT_BRA_FWTYPE_LM87, bra_option->data, 762 bra_option_len) == 0) { 763 sc->sc_fw_type = UPGT_FWTYPE_LM87; 764 break; 765 } 766 if (memcmp(UPGT_BRA_FWTYPE_FMAC, bra_option->data, 767 bra_option_len) == 0) { 768 sc->sc_fw_type = UPGT_FWTYPE_FMAC; 769 break; 770 } 771 aprint_error_dev(sc->sc_dev, 772 "unsupported firmware type\n"); 773 return EIO; 774 case UPGT_BRA_TYPE_VERSION: 775 DPRINTF(1, "%s: UPGT_BRA_TYPE_VERSION len=%d\n", 776 device_xname(sc->sc_dev), bra_option_len); 777 break; 778 case UPGT_BRA_TYPE_DEPIF: 779 DPRINTF(1, "%s: UPGT_BRA_TYPE_DEPIF len=%d\n", 780 device_xname(sc->sc_dev), bra_option_len); 781 break; 782 case UPGT_BRA_TYPE_EXPIF: 783 DPRINTF(1, "%s: UPGT_BRA_TYPE_EXPIF len=%d\n", 784 device_xname(sc->sc_dev), bra_option_len); 785 break; 786 case UPGT_BRA_TYPE_DESCR: 787 DPRINTF(1, "%s: UPGT_BRA_TYPE_DESCR len=%d\n", 788 device_xname(sc->sc_dev), bra_option_len); 789 790 struct upgt_fw_bra_descr *descr = 791 (struct upgt_fw_bra_descr *)bra_option->data; 792 793 sc->sc_memaddr_frame_start = 794 le32toh(descr->memaddr_space_start); 795 sc->sc_memaddr_frame_end = 796 le32toh(descr->memaddr_space_end); 797 798 DPRINTF(2, "%s: memory address space start=0x%08x\n", 799 device_xname(sc->sc_dev), 800 sc->sc_memaddr_frame_start); 801 DPRINTF(2, "%s: memory address space end=0x%08x\n", 802 device_xname(sc->sc_dev), 803 sc->sc_memaddr_frame_end); 804 break; 805 case UPGT_BRA_TYPE_END: 806 DPRINTF(1, "%s: UPGT_BRA_TYPE_END len=%d\n", 807 device_xname(sc->sc_dev), bra_option_len); 808 bra_end = 1; 809 break; 810 default: 811 DPRINTF(1, "%s: unknown BRA option len=%d\n", 812 device_xname(sc->sc_dev), bra_option_len); 813 return EIO; 814 } 815 816 /* jump to next BRA option */ 817 offset += sizeof(struct upgt_fw_bra_option) + bra_option_len; 818 } 819 820 DPRINTF(1, "%s: firmware verified\n", device_xname(sc->sc_dev)); 821 822 return 0; 823 } 824 825 static int 826 upgt_fw_load(struct upgt_softc *sc) 827 { 828 struct upgt_data *data_cmd = &sc->cmd_data; 829 struct upgt_data *data_rx = &sc->rx_data; 830 struct upgt_fw_x2_header *x2; 831 const uint8_t start_fwload_cmd[] = { 0x3c, 0x0d }; 832 int offset, bsize, n, i, len; 833 uint32_t crc; 834 835 /* send firmware start load command */ 836 len = sizeof(start_fwload_cmd); 837 memcpy(data_cmd->buf, start_fwload_cmd, len); 838 if (upgt_bulk_xmit(sc, data_cmd, sc->sc_tx_pipeh, &len, 0) != 0) { 839 aprint_error_dev(sc->sc_dev, 840 "could not send start_firmware_load command\n"); 841 return EIO; 842 } 843 844 /* send X2 header */ 845 len = sizeof(struct upgt_fw_x2_header); 846 x2 = (struct upgt_fw_x2_header *)data_cmd->buf; 847 memcpy(x2->signature, UPGT_X2_SIGNATURE, UPGT_X2_SIGNATURE_SIZE); 848 x2->startaddr = htole32(UPGT_MEMADDR_FIRMWARE_START); 849 x2->len = htole32(sc->sc_fw_size); 850 x2->crc = upgt_crc32_le(data_cmd->buf + UPGT_X2_SIGNATURE_SIZE, 851 sizeof(struct upgt_fw_x2_header) - UPGT_X2_SIGNATURE_SIZE - 852 sizeof(uint32_t)); 853 if (upgt_bulk_xmit(sc, data_cmd, sc->sc_tx_pipeh, &len, 0) != 0) { 854 aprint_error_dev(sc->sc_dev, 855 "could not send firmware X2 header\n"); 856 return EIO; 857 } 858 859 /* download firmware */ 860 for (offset = 0; offset < sc->sc_fw_size; offset += bsize) { 861 if (sc->sc_fw_size - offset > UPGT_FW_BLOCK_SIZE) 862 bsize = UPGT_FW_BLOCK_SIZE; 863 else 864 bsize = sc->sc_fw_size - offset; 865 866 n = upgt_fw_copy(sc->sc_fw + offset, data_cmd->buf, bsize); 867 868 DPRINTF(1, "%s: FW offset=%d, read=%d, sent=%d\n", 869 device_xname(sc->sc_dev), offset, n, bsize); 870 871 if (upgt_bulk_xmit(sc, data_cmd, sc->sc_tx_pipeh, &bsize, 0) 872 != 0) { 873 aprint_error_dev(sc->sc_dev, 874 "error while downloading firmware block\n"); 875 return EIO; 876 } 877 878 bsize = n; 879 } 880 DPRINTF(1, "%s: firmware downloaded\n", device_xname(sc->sc_dev)); 881 882 /* load firmware */ 883 crc = upgt_crc32_le(sc->sc_fw, sc->sc_fw_size); 884 *((uint32_t *)(data_cmd->buf) ) = crc; 885 *((uint8_t *)(data_cmd->buf) + 4) = 'g'; 886 *((uint8_t *)(data_cmd->buf) + 5) = '\r'; 887 len = 6; 888 if (upgt_bulk_xmit(sc, data_cmd, sc->sc_tx_pipeh, &len, 0) != 0) { 889 aprint_error_dev(sc->sc_dev, 890 "could not send load_firmware command\n"); 891 return EIO; 892 } 893 894 for (i = 0; i < UPGT_FIRMWARE_TIMEOUT; i++) { 895 len = UPGT_FW_BLOCK_SIZE; 896 memset(data_rx->buf, 0, 2); 897 if (upgt_bulk_xmit(sc, data_rx, sc->sc_rx_pipeh, &len, 898 USBD_SHORT_XFER_OK) != 0) { 899 aprint_error_dev(sc->sc_dev, 900 "could not read firmware response\n"); 901 return EIO; 902 } 903 904 if (memcmp(data_rx->buf, "OK", 2) == 0) 905 break; /* firmware load was successful */ 906 } 907 if (i == UPGT_FIRMWARE_TIMEOUT) { 908 aprint_error_dev(sc->sc_dev, "firmware load failed\n"); 909 return EIO; 910 } 911 DPRINTF(1, "%s: firmware loaded\n", device_xname(sc->sc_dev)); 912 913 return 0; 914 } 915 916 /* 917 * While copying the version 2 firmware, we need to replace two characters: 918 * 919 * 0x7e -> 0x7d 0x5e 920 * 0x7d -> 0x7d 0x5d 921 */ 922 static int 923 upgt_fw_copy(char *src, char *dst, int size) 924 { 925 int i, j; 926 927 for (i = 0, j = 0; i < size && j < size; i++) { 928 switch (src[i]) { 929 case 0x7e: 930 dst[j] = 0x7d; 931 j++; 932 dst[j] = 0x5e; 933 j++; 934 break; 935 case 0x7d: 936 dst[j] = 0x7d; 937 j++; 938 dst[j] = 0x5d; 939 j++; 940 break; 941 default: 942 dst[j] = src[i]; 943 j++; 944 break; 945 } 946 } 947 948 return i; 949 } 950 951 static int 952 upgt_eeprom_read(struct upgt_softc *sc) 953 { 954 struct upgt_data *data_cmd = &sc->cmd_data; 955 struct upgt_lmac_mem *mem; 956 struct upgt_lmac_eeprom *eeprom; 957 int offset, block, len; 958 959 offset = 0; 960 block = UPGT_EEPROM_BLOCK_SIZE; 961 while (offset < UPGT_EEPROM_SIZE) { 962 DPRINTF(1, "%s: request EEPROM block (offset=%d, len=%d)\n", 963 device_xname(sc->sc_dev), offset, block); 964 965 /* 966 * Transmit the URB containing the CMD data. 967 */ 968 len = sizeof(*mem) + sizeof(*eeprom) + block; 969 970 memset(data_cmd->buf, 0, len); 971 972 mem = (struct upgt_lmac_mem *)data_cmd->buf; 973 mem->addr = htole32(sc->sc_memaddr_frame_start + 974 UPGT_MEMSIZE_FRAME_HEAD); 975 976 eeprom = (struct upgt_lmac_eeprom *)(mem + 1); 977 eeprom->header1.flags = 0; 978 eeprom->header1.type = UPGT_H1_TYPE_CTRL; 979 eeprom->header1.len = htole16(( 980 sizeof(struct upgt_lmac_eeprom) - 981 sizeof(struct upgt_lmac_header)) + block); 982 983 eeprom->header2.reqid = htole32(sc->sc_memaddr_frame_start); 984 eeprom->header2.type = htole16(UPGT_H2_TYPE_EEPROM); 985 eeprom->header2.flags = 0; 986 987 eeprom->offset = htole16(offset); 988 eeprom->len = htole16(block); 989 990 mem->chksum = upgt_chksum_le((uint32_t *)eeprom, 991 len - sizeof(*mem)); 992 993 if (upgt_bulk_xmit(sc, data_cmd, sc->sc_tx_pipeh, &len, 994 USBD_FORCE_SHORT_XFER) != 0) { 995 aprint_error_dev(sc->sc_dev, 996 "could not transmit EEPROM data URB\n"); 997 return EIO; 998 } 999 if (tsleep(sc, 0, "eeprom_request", UPGT_USB_TIMEOUT)) { 1000 aprint_error_dev(sc->sc_dev, 1001 "timeout while waiting for EEPROM data\n"); 1002 return EIO; 1003 } 1004 1005 offset += block; 1006 if (UPGT_EEPROM_SIZE - offset < block) 1007 block = UPGT_EEPROM_SIZE - offset; 1008 } 1009 1010 return 0; 1011 } 1012 1013 static int 1014 upgt_eeprom_parse(struct upgt_softc *sc) 1015 { 1016 struct ieee80211com *ic = &sc->sc_ic; 1017 struct upgt_eeprom_header *eeprom_header; 1018 struct upgt_eeprom_option *eeprom_option; 1019 uint16_t option_len; 1020 uint16_t option_type; 1021 uint16_t preamble_len; 1022 int option_end = 0; 1023 1024 /* calculate eeprom options start offset */ 1025 eeprom_header = (struct upgt_eeprom_header *)sc->sc_eeprom; 1026 preamble_len = le16toh(eeprom_header->preamble_len); 1027 eeprom_option = (struct upgt_eeprom_option *)(sc->sc_eeprom + 1028 (sizeof(struct upgt_eeprom_header) + preamble_len)); 1029 1030 while (!option_end) { 1031 /* the eeprom option length is stored in words */ 1032 option_len = 1033 (le16toh(eeprom_option->len) - 1) * sizeof(uint16_t); 1034 option_type = 1035 le16toh(eeprom_option->type); 1036 1037 switch (option_type) { 1038 case UPGT_EEPROM_TYPE_NAME: 1039 DPRINTF(1, "%s: EEPROM name len=%d\n", 1040 device_xname(sc->sc_dev), option_len); 1041 break; 1042 case UPGT_EEPROM_TYPE_SERIAL: 1043 DPRINTF(1, "%s: EEPROM serial len=%d\n", 1044 device_xname(sc->sc_dev), option_len); 1045 break; 1046 case UPGT_EEPROM_TYPE_MAC: 1047 DPRINTF(1, "%s: EEPROM mac len=%d\n", 1048 device_xname(sc->sc_dev), option_len); 1049 1050 IEEE80211_ADDR_COPY(ic->ic_myaddr, eeprom_option->data); 1051 break; 1052 case UPGT_EEPROM_TYPE_HWRX: 1053 DPRINTF(1, "%s: EEPROM hwrx len=%d\n", 1054 device_xname(sc->sc_dev), option_len); 1055 1056 upgt_eeprom_parse_hwrx(sc, eeprom_option->data); 1057 break; 1058 case UPGT_EEPROM_TYPE_CHIP: 1059 DPRINTF(1, "%s: EEPROM chip len=%d\n", 1060 device_xname(sc->sc_dev), option_len); 1061 break; 1062 case UPGT_EEPROM_TYPE_FREQ3: 1063 DPRINTF(1, "%s: EEPROM freq3 len=%d\n", 1064 device_xname(sc->sc_dev), option_len); 1065 1066 upgt_eeprom_parse_freq3(sc, eeprom_option->data, 1067 option_len); 1068 break; 1069 case UPGT_EEPROM_TYPE_FREQ4: 1070 DPRINTF(1, "%s: EEPROM freq4 len=%d\n", 1071 device_xname(sc->sc_dev), option_len); 1072 1073 upgt_eeprom_parse_freq4(sc, eeprom_option->data, 1074 option_len); 1075 break; 1076 case UPGT_EEPROM_TYPE_FREQ5: 1077 DPRINTF(1, "%s: EEPROM freq5 len=%d\n", 1078 device_xname(sc->sc_dev), option_len); 1079 break; 1080 case UPGT_EEPROM_TYPE_FREQ6: 1081 DPRINTF(1, "%s: EEPROM freq6 len=%d\n", 1082 device_xname(sc->sc_dev), option_len); 1083 1084 upgt_eeprom_parse_freq6(sc, eeprom_option->data, 1085 option_len); 1086 break; 1087 case UPGT_EEPROM_TYPE_END: 1088 DPRINTF(1, "%s: EEPROM end len=%d\n", 1089 device_xname(sc->sc_dev), option_len); 1090 option_end = 1; 1091 break; 1092 case UPGT_EEPROM_TYPE_OFF: 1093 DPRINTF(1, "%s: EEPROM off without end option\n", 1094 device_xname(sc->sc_dev)); 1095 return EIO; 1096 default: 1097 DPRINTF(1, "%s: EEPROM unknown type 0x%04x len=%d\n", 1098 device_xname(sc->sc_dev), option_type, option_len); 1099 break; 1100 } 1101 1102 /* jump to next EEPROM option */ 1103 eeprom_option = (struct upgt_eeprom_option *) 1104 (eeprom_option->data + option_len); 1105 } 1106 1107 return 0; 1108 } 1109 1110 static void 1111 upgt_eeprom_parse_hwrx(struct upgt_softc *sc, uint8_t *data) 1112 { 1113 struct upgt_eeprom_option_hwrx *option_hwrx; 1114 1115 option_hwrx = (struct upgt_eeprom_option_hwrx *)data; 1116 1117 sc->sc_eeprom_hwrx = option_hwrx->rxfilter - UPGT_EEPROM_RX_CONST; 1118 1119 DPRINTF(2, "%s: hwrx option value=0x%04x\n", 1120 device_xname(sc->sc_dev), sc->sc_eeprom_hwrx); 1121 } 1122 1123 static void 1124 upgt_eeprom_parse_freq3(struct upgt_softc *sc, uint8_t *data, int len) 1125 { 1126 struct upgt_eeprom_freq3_header *freq3_header; 1127 struct upgt_lmac_freq3 *freq3; 1128 int i, elements, flags; 1129 unsigned channel; 1130 1131 freq3_header = (struct upgt_eeprom_freq3_header *)data; 1132 freq3 = (struct upgt_lmac_freq3 *)(freq3_header + 1); 1133 1134 flags = freq3_header->flags; 1135 elements = freq3_header->elements; 1136 1137 DPRINTF(2, "%s: flags=0x%02x\n", device_xname(sc->sc_dev), flags); 1138 DPRINTF(2, "%s: elements=%d\n", device_xname(sc->sc_dev), elements); 1139 1140 for (i = 0; i < elements; i++) { 1141 channel = ieee80211_mhz2ieee(le16toh(freq3[i].freq), 0); 1142 1143 sc->sc_eeprom_freq3[channel] = freq3[i]; 1144 1145 DPRINTF(2, "%s: frequence=%d, channel=%d\n", 1146 device_xname(sc->sc_dev), 1147 le16toh(sc->sc_eeprom_freq3[channel].freq), channel); 1148 } 1149 } 1150 1151 static void 1152 upgt_eeprom_parse_freq4(struct upgt_softc *sc, uint8_t *data, int len) 1153 { 1154 struct upgt_eeprom_freq4_header *freq4_header; 1155 struct upgt_eeprom_freq4_1 *freq4_1; 1156 struct upgt_eeprom_freq4_2 *freq4_2; 1157 int i, j, elements, settings, flags; 1158 unsigned channel; 1159 1160 freq4_header = (struct upgt_eeprom_freq4_header *)data; 1161 freq4_1 = (struct upgt_eeprom_freq4_1 *)(freq4_header + 1); 1162 1163 flags = freq4_header->flags; 1164 elements = freq4_header->elements; 1165 settings = freq4_header->settings; 1166 1167 /* we need this value later */ 1168 sc->sc_eeprom_freq6_settings = freq4_header->settings; 1169 1170 DPRINTF(2, "%s: flags=0x%02x\n", device_xname(sc->sc_dev), flags); 1171 DPRINTF(2, "%s: elements=%d\n", device_xname(sc->sc_dev), elements); 1172 DPRINTF(2, "%s: settings=%d\n", device_xname(sc->sc_dev), settings); 1173 1174 for (i = 0; i < elements; i++) { 1175 channel = ieee80211_mhz2ieee(le16toh(freq4_1[i].freq), 0); 1176 1177 freq4_2 = (struct upgt_eeprom_freq4_2 *)freq4_1[i].data; 1178 1179 for (j = 0; j < settings; j++) { 1180 sc->sc_eeprom_freq4[channel][j].cmd = freq4_2[j]; 1181 sc->sc_eeprom_freq4[channel][j].pad = 0; 1182 } 1183 1184 DPRINTF(2, "%s: frequence=%d, channel=%d\n", 1185 device_xname(sc->sc_dev), 1186 le16toh(freq4_1[i].freq), channel); 1187 } 1188 } 1189 1190 static void 1191 upgt_eeprom_parse_freq6(struct upgt_softc *sc, uint8_t *data, int len) 1192 { 1193 struct upgt_lmac_freq6 *freq6; 1194 int i, elements; 1195 unsigned channel; 1196 1197 freq6 = (struct upgt_lmac_freq6 *)data; 1198 1199 elements = len / sizeof(struct upgt_lmac_freq6); 1200 1201 DPRINTF(2, "%s: elements=%d\n", device_xname(sc->sc_dev), elements); 1202 1203 for (i = 0; i < elements; i++) { 1204 channel = ieee80211_mhz2ieee(le16toh(freq6[i].freq), 0); 1205 1206 sc->sc_eeprom_freq6[channel] = freq6[i]; 1207 1208 DPRINTF(2, "%s: frequence=%d, channel=%d\n", 1209 device_xname(sc->sc_dev), 1210 le16toh(sc->sc_eeprom_freq6[channel].freq), channel); 1211 } 1212 } 1213 1214 static int 1215 upgt_ioctl(struct ifnet *ifp, u_long cmd, void *data) 1216 { 1217 struct upgt_softc *sc = ifp->if_softc; 1218 struct ieee80211com *ic = &sc->sc_ic; 1219 int s, error = 0; 1220 1221 s = splnet(); 1222 1223 switch (cmd) { 1224 case SIOCSIFFLAGS: 1225 if ((error = ifioctl_common(ifp, cmd, data)) != 0) 1226 break; 1227 if (ifp->if_flags & IFF_UP) { 1228 if ((ifp->if_flags & IFF_RUNNING) == 0) 1229 upgt_init(ifp); 1230 } else { 1231 if (ifp->if_flags & IFF_RUNNING) 1232 upgt_stop(sc); 1233 } 1234 break; 1235 case SIOCADDMULTI: 1236 case SIOCDELMULTI: 1237 if ((error = ether_ioctl(ifp, cmd, data)) == ENETRESET) { 1238 /* setup multicast filter, etc */ 1239 error = 0; 1240 } 1241 break; 1242 default: 1243 error = ieee80211_ioctl(ic, cmd, data); 1244 break; 1245 } 1246 1247 if (error == ENETRESET) { 1248 if ((ifp->if_flags & (IFF_UP | IFF_RUNNING)) == 1249 (IFF_UP | IFF_RUNNING)) 1250 upgt_init(ifp); 1251 error = 0; 1252 } 1253 1254 splx(s); 1255 1256 return error; 1257 } 1258 1259 static int 1260 upgt_init(struct ifnet *ifp) 1261 { 1262 struct upgt_softc *sc = ifp->if_softc; 1263 struct ieee80211com *ic = &sc->sc_ic; 1264 1265 DPRINTF(1, "%s: %s\n", device_xname(sc->sc_dev), __func__); 1266 1267 if (ifp->if_flags & IFF_RUNNING) 1268 upgt_stop(sc); 1269 1270 ifp->if_flags |= IFF_RUNNING; 1271 ifp->if_flags &= ~IFF_OACTIVE; 1272 1273 IEEE80211_ADDR_COPY(ic->ic_myaddr, CLLADDR(ifp->if_sadl)); 1274 1275 /* setup device rates */ 1276 upgt_setup_rates(sc); 1277 1278 if (ic->ic_opmode == IEEE80211_M_MONITOR) 1279 ieee80211_new_state(ic, IEEE80211_S_RUN, -1); 1280 else 1281 ieee80211_new_state(ic, IEEE80211_S_SCAN, -1); 1282 1283 return 0; 1284 } 1285 1286 static void 1287 upgt_stop(struct upgt_softc *sc) 1288 { 1289 struct ieee80211com *ic = &sc->sc_ic; 1290 struct ifnet *ifp = &sc->sc_if; 1291 1292 DPRINTF(1, "%s: %s\n", device_xname(sc->sc_dev), __func__); 1293 1294 /* device down */ 1295 ifp->if_timer = 0; 1296 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); 1297 1298 /* change device back to initial state */ 1299 ieee80211_new_state(ic, IEEE80211_S_INIT, -1); 1300 } 1301 1302 static int 1303 upgt_media_change(struct ifnet *ifp) 1304 { 1305 struct upgt_softc *sc = ifp->if_softc; 1306 int error; 1307 1308 DPRINTF(1, "%s: %s\n", device_xname(sc->sc_dev), __func__); 1309 1310 if ((error = ieee80211_media_change(ifp) != ENETRESET)) 1311 return error; 1312 1313 if ((ifp->if_flags & (IFF_UP | IFF_RUNNING)) == 1314 (IFF_UP | IFF_RUNNING)) { 1315 /* give pending USB transfers a chance to finish */ 1316 usbd_delay_ms(sc->sc_udev, 100); 1317 upgt_init(ifp); 1318 } 1319 1320 return 0; 1321 } 1322 1323 static void 1324 upgt_newassoc(struct ieee80211_node *ni, int isnew) 1325 { 1326 1327 ni->ni_txrate = 0; 1328 } 1329 1330 static int 1331 upgt_newstate(struct ieee80211com *ic, enum ieee80211_state nstate, int arg) 1332 { 1333 struct upgt_softc *sc = ic->ic_ifp->if_softc; 1334 1335 usb_rem_task(sc->sc_udev, &sc->sc_task_newstate); 1336 callout_stop(&sc->scan_to); 1337 1338 /* do it in a process context */ 1339 sc->sc_state = nstate; 1340 sc->sc_arg = arg; 1341 usb_add_task(sc->sc_udev, &sc->sc_task_newstate, USB_TASKQ_DRIVER); 1342 1343 return 0; 1344 } 1345 1346 static void 1347 upgt_newstate_task(void *arg) 1348 { 1349 struct upgt_softc *sc = arg; 1350 struct ieee80211com *ic = &sc->sc_ic; 1351 struct ieee80211_node *ni; 1352 unsigned channel; 1353 1354 mutex_enter(&sc->sc_mtx); 1355 1356 switch (sc->sc_state) { 1357 case IEEE80211_S_INIT: 1358 DPRINTF(1, "%s: newstate is IEEE80211_S_INIT\n", 1359 device_xname(sc->sc_dev)); 1360 1361 /* do not accept any frames if the device is down */ 1362 upgt_set_macfilter(sc, IEEE80211_S_INIT); 1363 upgt_set_led(sc, UPGT_LED_OFF); 1364 break; 1365 case IEEE80211_S_SCAN: 1366 DPRINTF(1, "%s: newstate is IEEE80211_S_SCAN\n", 1367 device_xname(sc->sc_dev)); 1368 1369 channel = ieee80211_chan2ieee(ic, ic->ic_curchan); 1370 upgt_set_channel(sc, channel); 1371 upgt_set_macfilter(sc, IEEE80211_S_SCAN); 1372 callout_schedule(&sc->scan_to, hz / 5); 1373 break; 1374 case IEEE80211_S_AUTH: 1375 DPRINTF(1, "%s: newstate is IEEE80211_S_AUTH\n", 1376 device_xname(sc->sc_dev)); 1377 1378 channel = ieee80211_chan2ieee(ic, ic->ic_curchan); 1379 upgt_set_channel(sc, channel); 1380 break; 1381 case IEEE80211_S_ASSOC: 1382 DPRINTF(1, "%s: newstate is IEEE80211_S_ASSOC\n", 1383 device_xname(sc->sc_dev)); 1384 1385 channel = ieee80211_chan2ieee(ic, ic->ic_curchan); 1386 upgt_set_channel(sc, channel); 1387 break; 1388 case IEEE80211_S_RUN: 1389 DPRINTF(1, "%s: newstate is IEEE80211_S_RUN\n", 1390 device_xname(sc->sc_dev)); 1391 1392 channel = ieee80211_chan2ieee(ic, ic->ic_curchan); 1393 upgt_set_channel(sc, channel); 1394 1395 ni = ic->ic_bss; 1396 1397 /* 1398 * TX rate control is done by the firmware. 1399 * Report the maximum rate which is available therefore. 1400 */ 1401 ni->ni_txrate = ni->ni_rates.rs_nrates - 1; 1402 1403 if (ic->ic_opmode != IEEE80211_M_MONITOR) 1404 upgt_set_macfilter(sc, IEEE80211_S_RUN); 1405 upgt_set_led(sc, UPGT_LED_ON); 1406 break; 1407 } 1408 1409 mutex_exit(&sc->sc_mtx); 1410 1411 sc->sc_newstate(ic, sc->sc_state, sc->sc_arg); 1412 } 1413 1414 static void 1415 upgt_next_scan(void *arg) 1416 { 1417 struct upgt_softc *sc = arg; 1418 struct ieee80211com *ic = &sc->sc_ic; 1419 1420 DPRINTF(2, "%s: %s\n", device_xname(sc->sc_dev), __func__); 1421 1422 if (ic->ic_state == IEEE80211_S_SCAN) 1423 ieee80211_next_scan(ic); 1424 } 1425 1426 static void 1427 upgt_start(struct ifnet *ifp) 1428 { 1429 struct upgt_softc *sc = ifp->if_softc; 1430 struct ieee80211com *ic = &sc->sc_ic; 1431 struct ether_header *eh; 1432 struct ieee80211_node *ni; 1433 struct mbuf *m; 1434 int i; 1435 1436 /* don't transmit packets if interface is busy or down */ 1437 if ((ifp->if_flags & (IFF_RUNNING | IFF_OACTIVE)) != IFF_RUNNING) 1438 return; 1439 1440 DPRINTF(2, "%s: %s\n", device_xname(sc->sc_dev), __func__); 1441 1442 for (i = 0; i < UPGT_TX_COUNT; i++) { 1443 struct upgt_data *data_tx = &sc->tx_data[i]; 1444 1445 if (data_tx->m != NULL) 1446 continue; 1447 1448 IF_POLL(&ic->ic_mgtq, m); 1449 if (m != NULL) { 1450 /* management frame */ 1451 IF_DEQUEUE(&ic->ic_mgtq, m); 1452 1453 ni = (struct ieee80211_node *)m->m_pkthdr.rcvif; 1454 m->m_pkthdr.rcvif = NULL; 1455 1456 bpf_mtap3(ic->ic_rawbpf, m); 1457 1458 if ((data_tx->addr = upgt_mem_alloc(sc)) == 0) { 1459 aprint_error_dev(sc->sc_dev, 1460 "no free prism memory\n"); 1461 m_freem(m); 1462 ifp->if_oerrors++; 1463 break; 1464 } 1465 data_tx->ni = ni; 1466 data_tx->m = m; 1467 sc->tx_queued++; 1468 } else { 1469 /* data frame */ 1470 if (ic->ic_state != IEEE80211_S_RUN) 1471 break; 1472 1473 IFQ_POLL(&ifp->if_snd, m); 1474 if (m == NULL) 1475 break; 1476 1477 IFQ_DEQUEUE(&ifp->if_snd, m); 1478 if (m->m_len < sizeof(struct ether_header) && 1479 !(m = m_pullup(m, sizeof(struct ether_header)))) 1480 continue; 1481 1482 eh = mtod(m, struct ether_header *); 1483 ni = ieee80211_find_txnode(ic, eh->ether_dhost); 1484 if (ni == NULL) { 1485 m_freem(m); 1486 continue; 1487 } 1488 1489 bpf_mtap(ifp, m); 1490 1491 m = ieee80211_encap(ic, m, ni); 1492 if (m == NULL) { 1493 ieee80211_free_node(ni); 1494 continue; 1495 } 1496 1497 bpf_mtap3(ic->ic_rawbpf, m); 1498 1499 if ((data_tx->addr = upgt_mem_alloc(sc)) == 0) { 1500 aprint_error_dev(sc->sc_dev, 1501 "no free prism memory\n"); 1502 m_freem(m); 1503 ieee80211_free_node(ni); 1504 ifp->if_oerrors++; 1505 break; 1506 } 1507 data_tx->ni = ni; 1508 data_tx->m = m; 1509 sc->tx_queued++; 1510 } 1511 } 1512 1513 if (sc->tx_queued > 0) { 1514 DPRINTF(2, "%s: tx_queued=%d\n", 1515 device_xname(sc->sc_dev), sc->tx_queued); 1516 /* process the TX queue in process context */ 1517 ifp->if_timer = 5; 1518 ifp->if_flags |= IFF_OACTIVE; 1519 usb_rem_task(sc->sc_udev, &sc->sc_task_tx); 1520 usb_add_task(sc->sc_udev, &sc->sc_task_tx, USB_TASKQ_DRIVER); 1521 } 1522 } 1523 1524 static void 1525 upgt_watchdog(struct ifnet *ifp) 1526 { 1527 struct upgt_softc *sc = ifp->if_softc; 1528 struct ieee80211com *ic = &sc->sc_ic; 1529 1530 if (ic->ic_state == IEEE80211_S_INIT) 1531 return; 1532 1533 aprint_error_dev(sc->sc_dev, "watchdog timeout\n"); 1534 1535 /* TODO: what shall we do on TX timeout? */ 1536 1537 ieee80211_watchdog(ic); 1538 } 1539 1540 static void 1541 upgt_tx_task(void *arg) 1542 { 1543 struct upgt_softc *sc = arg; 1544 struct ieee80211com *ic = &sc->sc_ic; 1545 struct ieee80211_frame *wh; 1546 struct ieee80211_key *k; 1547 struct ifnet *ifp = &sc->sc_if; 1548 struct upgt_lmac_mem *mem; 1549 struct upgt_lmac_tx_desc *txdesc; 1550 struct mbuf *m; 1551 uint32_t addr; 1552 int i, len, pad, s; 1553 usbd_status error; 1554 1555 mutex_enter(&sc->sc_mtx); 1556 upgt_set_led(sc, UPGT_LED_BLINK); 1557 mutex_exit(&sc->sc_mtx); 1558 1559 s = splnet(); 1560 1561 for (i = 0; i < UPGT_TX_COUNT; i++) { 1562 struct upgt_data *data_tx = &sc->tx_data[i]; 1563 1564 if (data_tx->m == NULL) 1565 continue; 1566 1567 m = data_tx->m; 1568 addr = data_tx->addr + UPGT_MEMSIZE_FRAME_HEAD; 1569 1570 /* 1571 * Software crypto. 1572 */ 1573 wh = mtod(m, struct ieee80211_frame *); 1574 1575 if (wh->i_fc[1] & IEEE80211_FC1_WEP) { 1576 k = ieee80211_crypto_encap(ic, data_tx->ni, m); 1577 if (k == NULL) { 1578 m_freem(m); 1579 data_tx->m = NULL; 1580 ieee80211_free_node(data_tx->ni); 1581 data_tx->ni = NULL; 1582 ifp->if_oerrors++; 1583 break; 1584 } 1585 1586 /* in case packet header moved, reset pointer */ 1587 wh = mtod(m, struct ieee80211_frame *); 1588 } 1589 1590 /* 1591 * Transmit the URB containing the TX data. 1592 */ 1593 memset(data_tx->buf, 0, sizeof(*mem) + sizeof(*txdesc)); 1594 1595 mem = (struct upgt_lmac_mem *)data_tx->buf; 1596 mem->addr = htole32(addr); 1597 1598 txdesc = (struct upgt_lmac_tx_desc *)(mem + 1); 1599 1600 /* XXX differ between data and mgmt frames? */ 1601 txdesc->header1.flags = UPGT_H1_FLAGS_TX_DATA; 1602 txdesc->header1.type = UPGT_H1_TYPE_TX_DATA; 1603 txdesc->header1.len = htole16(m->m_pkthdr.len); 1604 1605 txdesc->header2.reqid = htole32(data_tx->addr); 1606 txdesc->header2.type = htole16(UPGT_H2_TYPE_TX_ACK_YES); 1607 txdesc->header2.flags = htole16(UPGT_H2_FLAGS_TX_ACK_YES); 1608 1609 if ((wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) == 1610 IEEE80211_FC0_TYPE_MGT) { 1611 /* always send mgmt frames at lowest rate (DS1) */ 1612 memset(txdesc->rates, 0x10, sizeof(txdesc->rates)); 1613 } else { 1614 memcpy(txdesc->rates, sc->sc_cur_rateset, 1615 sizeof(txdesc->rates)); 1616 } 1617 txdesc->type = htole32(UPGT_TX_DESC_TYPE_DATA); 1618 txdesc->pad3[0] = UPGT_TX_DESC_PAD3_SIZE; 1619 1620 if (sc->sc_drvbpf != NULL) { 1621 struct upgt_tx_radiotap_header *tap = &sc->sc_txtap; 1622 1623 tap->wt_flags = 0; 1624 tap->wt_rate = 0; /* TODO: where to get from? */ 1625 tap->wt_chan_freq = htole16(ic->ic_curchan->ic_freq); 1626 tap->wt_chan_flags = htole16(ic->ic_curchan->ic_flags); 1627 1628 bpf_mtap2(sc->sc_drvbpf, tap, sc->sc_txtap_len, m); 1629 } 1630 1631 /* copy frame below our TX descriptor header */ 1632 m_copydata(m, 0, m->m_pkthdr.len, 1633 data_tx->buf + sizeof(*mem) + sizeof(*txdesc)); 1634 1635 /* calculate frame size */ 1636 len = sizeof(*mem) + sizeof(*txdesc) + m->m_pkthdr.len; 1637 1638 if (len & 3) { 1639 /* we need to align the frame to a 4 byte boundary */ 1640 pad = 4 - (len & 3); 1641 memset(data_tx->buf + len, 0, pad); 1642 len += pad; 1643 } 1644 1645 /* calculate frame checksum */ 1646 mem->chksum = upgt_chksum_le((uint32_t *)txdesc, 1647 len - sizeof(*mem)); 1648 1649 /* we do not need the mbuf anymore */ 1650 m_freem(m); 1651 data_tx->m = NULL; 1652 1653 ieee80211_free_node(data_tx->ni); 1654 data_tx->ni = NULL; 1655 1656 DPRINTF(2, "%s: TX start data sending\n", 1657 device_xname(sc->sc_dev)); 1658 1659 usbd_setup_xfer(data_tx->xfer, sc->sc_tx_pipeh, data_tx, 1660 data_tx->buf, len, USBD_FORCE_SHORT_XFER | USBD_NO_COPY, 1661 UPGT_USB_TIMEOUT, NULL); 1662 error = usbd_transfer(data_tx->xfer); 1663 if (error != USBD_NORMAL_COMPLETION && 1664 error != USBD_IN_PROGRESS) { 1665 aprint_error_dev(sc->sc_dev, 1666 "could not transmit TX data URB\n"); 1667 ifp->if_oerrors++; 1668 break; 1669 } 1670 1671 DPRINTF(2, "%s: TX sent (%d bytes)\n", 1672 device_xname(sc->sc_dev), len); 1673 } 1674 1675 splx(s); 1676 1677 /* 1678 * If we don't regulary read the device statistics, the RX queue 1679 * will stall. It's strange, but it works, so we keep reading 1680 * the statistics here. *shrug* 1681 */ 1682 mutex_enter(&sc->sc_mtx); 1683 upgt_get_stats(sc); 1684 mutex_exit(&sc->sc_mtx); 1685 } 1686 1687 static void 1688 upgt_tx_done(struct upgt_softc *sc, uint8_t *data) 1689 { 1690 struct ifnet *ifp = &sc->sc_if; 1691 struct upgt_lmac_tx_done_desc *desc; 1692 int i, s; 1693 1694 s = splnet(); 1695 1696 desc = (struct upgt_lmac_tx_done_desc *)data; 1697 1698 for (i = 0; i < UPGT_TX_COUNT; i++) { 1699 struct upgt_data *data_tx = &sc->tx_data[i]; 1700 1701 if (data_tx->addr == le32toh(desc->header2.reqid)) { 1702 upgt_mem_free(sc, data_tx->addr); 1703 data_tx->addr = 0; 1704 1705 sc->tx_queued--; 1706 ifp->if_opackets++; 1707 1708 DPRINTF(2, "%s: TX done: ", device_xname(sc->sc_dev)); 1709 DPRINTF(2, "memaddr=0x%08x, status=0x%04x, rssi=%d, ", 1710 le32toh(desc->header2.reqid), 1711 le16toh(desc->status), 1712 le16toh(desc->rssi)); 1713 DPRINTF(2, "seq=%d\n", le16toh(desc->seq)); 1714 break; 1715 } 1716 } 1717 1718 if (sc->tx_queued == 0) { 1719 /* TX queued was processed, continue */ 1720 ifp->if_timer = 0; 1721 ifp->if_flags &= ~IFF_OACTIVE; 1722 upgt_start(ifp); 1723 } 1724 1725 splx(s); 1726 } 1727 1728 static void 1729 upgt_rx_cb(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status) 1730 { 1731 struct upgt_data *data_rx = priv; 1732 struct upgt_softc *sc = data_rx->sc; 1733 int len; 1734 struct upgt_lmac_header *header; 1735 struct upgt_lmac_eeprom *eeprom; 1736 uint8_t h1_type; 1737 uint16_t h2_type; 1738 1739 DPRINTF(3, "%s: %s\n", device_xname(sc->sc_dev), __func__); 1740 1741 if (status != USBD_NORMAL_COMPLETION) { 1742 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) 1743 return; 1744 if (status == USBD_STALLED) 1745 usbd_clear_endpoint_stall_async(sc->sc_rx_pipeh); 1746 goto skip; 1747 } 1748 usbd_get_xfer_status(xfer, NULL, NULL, &len, NULL); 1749 1750 /* 1751 * Check what type of frame came in. 1752 */ 1753 header = (struct upgt_lmac_header *)(data_rx->buf + 4); 1754 1755 h1_type = header->header1.type; 1756 h2_type = le16toh(header->header2.type); 1757 1758 if (h1_type == UPGT_H1_TYPE_CTRL && 1759 h2_type == UPGT_H2_TYPE_EEPROM) { 1760 eeprom = (struct upgt_lmac_eeprom *)(data_rx->buf + 4); 1761 uint16_t eeprom_offset = le16toh(eeprom->offset); 1762 uint16_t eeprom_len = le16toh(eeprom->len); 1763 1764 DPRINTF(2, "%s: received EEPROM block (offset=%d, len=%d)\n", 1765 device_xname(sc->sc_dev), eeprom_offset, eeprom_len); 1766 1767 memcpy(sc->sc_eeprom + eeprom_offset, 1768 data_rx->buf + sizeof(struct upgt_lmac_eeprom) + 4, 1769 eeprom_len); 1770 1771 /* EEPROM data has arrived in time, wakeup tsleep() */ 1772 wakeup(sc); 1773 } else 1774 if (h1_type == UPGT_H1_TYPE_CTRL && 1775 h2_type == UPGT_H2_TYPE_TX_DONE) { 1776 DPRINTF(2, "%s: received 802.11 TX done\n", 1777 device_xname(sc->sc_dev)); 1778 1779 upgt_tx_done(sc, data_rx->buf + 4); 1780 } else 1781 if (h1_type == UPGT_H1_TYPE_RX_DATA || 1782 h1_type == UPGT_H1_TYPE_RX_DATA_MGMT) { 1783 DPRINTF(3, "%s: received 802.11 RX data\n", 1784 device_xname(sc->sc_dev)); 1785 1786 upgt_rx(sc, data_rx->buf + 4, le16toh(header->header1.len)); 1787 } else 1788 if (h1_type == UPGT_H1_TYPE_CTRL && 1789 h2_type == UPGT_H2_TYPE_STATS) { 1790 DPRINTF(2, "%s: received statistic data\n", 1791 device_xname(sc->sc_dev)); 1792 1793 /* TODO: what could we do with the statistic data? */ 1794 } else { 1795 /* ignore unknown frame types */ 1796 DPRINTF(1, "%s: received unknown frame type 0x%02x\n", 1797 device_xname(sc->sc_dev), header->header1.type); 1798 } 1799 1800 skip: /* setup new transfer */ 1801 usbd_setup_xfer(xfer, sc->sc_rx_pipeh, data_rx, data_rx->buf, MCLBYTES, 1802 USBD_SHORT_XFER_OK, USBD_NO_TIMEOUT, upgt_rx_cb); 1803 (void)usbd_transfer(xfer); 1804 } 1805 1806 static void 1807 upgt_rx(struct upgt_softc *sc, uint8_t *data, int pkglen) 1808 { 1809 struct ieee80211com *ic = &sc->sc_ic; 1810 struct ifnet *ifp = &sc->sc_if; 1811 struct upgt_lmac_rx_desc *rxdesc; 1812 struct ieee80211_frame *wh; 1813 struct ieee80211_node *ni; 1814 struct mbuf *m; 1815 int s; 1816 1817 /* access RX packet descriptor */ 1818 rxdesc = (struct upgt_lmac_rx_desc *)data; 1819 1820 /* create mbuf which is suitable for strict alignment archs */ 1821 #define ETHER_ALIGN 0 1822 m = m_devget(rxdesc->data, pkglen, ETHER_ALIGN, ifp, NULL); 1823 if (m == NULL) { 1824 DPRINTF(1, "%s: could not create RX mbuf\n", 1825 device_xname(sc->sc_dev)); 1826 ifp->if_ierrors++; 1827 return; 1828 } 1829 1830 s = splnet(); 1831 1832 if (sc->sc_drvbpf != NULL) { 1833 struct upgt_rx_radiotap_header *tap = &sc->sc_rxtap; 1834 1835 tap->wr_flags = IEEE80211_RADIOTAP_F_FCS; 1836 tap->wr_rate = upgt_rx_rate(sc, rxdesc->rate); 1837 tap->wr_chan_freq = htole16(ic->ic_curchan->ic_freq); 1838 tap->wr_chan_flags = htole16(ic->ic_curchan->ic_flags); 1839 tap->wr_antsignal = rxdesc->rssi; 1840 1841 bpf_mtap2(sc->sc_drvbpf, tap, sc->sc_rxtap_len, m); 1842 } 1843 1844 /* trim FCS */ 1845 m_adj(m, -IEEE80211_CRC_LEN); 1846 1847 wh = mtod(m, struct ieee80211_frame *); 1848 ni = ieee80211_find_rxnode(ic, (struct ieee80211_frame_min *)wh); 1849 1850 /* push the frame up to the 802.11 stack */ 1851 ieee80211_input(ic, m, ni, rxdesc->rssi, 0); 1852 1853 /* node is no longer needed */ 1854 ieee80211_free_node(ni); 1855 1856 splx(s); 1857 1858 DPRINTF(3, "%s: RX done\n", device_xname(sc->sc_dev)); 1859 } 1860 1861 static void 1862 upgt_setup_rates(struct upgt_softc *sc) 1863 { 1864 struct ieee80211com *ic = &sc->sc_ic; 1865 1866 /* 1867 * 0x01 = OFMD6 0x10 = DS1 1868 * 0x04 = OFDM9 0x11 = DS2 1869 * 0x06 = OFDM12 0x12 = DS5 1870 * 0x07 = OFDM18 0x13 = DS11 1871 * 0x08 = OFDM24 1872 * 0x09 = OFDM36 1873 * 0x0a = OFDM48 1874 * 0x0b = OFDM54 1875 */ 1876 const uint8_t rateset_auto_11b[] = 1877 { 0x13, 0x13, 0x12, 0x11, 0x11, 0x10, 0x10, 0x10 }; 1878 const uint8_t rateset_auto_11g[] = 1879 { 0x0b, 0x0a, 0x09, 0x08, 0x07, 0x06, 0x04, 0x01 }; 1880 const uint8_t rateset_fix_11bg[] = 1881 { 0x10, 0x11, 0x12, 0x13, 0x01, 0x04, 0x06, 0x07, 1882 0x08, 0x09, 0x0a, 0x0b }; 1883 1884 if (ic->ic_fixed_rate == IEEE80211_FIXED_RATE_NONE) { 1885 /* 1886 * Automatic rate control is done by the device. 1887 * We just pass the rateset from which the device 1888 * will pickup a rate. 1889 */ 1890 if (ic->ic_curmode == IEEE80211_MODE_11B) 1891 memcpy(sc->sc_cur_rateset, rateset_auto_11b, 1892 sizeof(sc->sc_cur_rateset)); 1893 if (ic->ic_curmode == IEEE80211_MODE_11G || 1894 ic->ic_curmode == IEEE80211_MODE_AUTO) 1895 memcpy(sc->sc_cur_rateset, rateset_auto_11g, 1896 sizeof(sc->sc_cur_rateset)); 1897 } else { 1898 /* set a fixed rate */ 1899 memset(sc->sc_cur_rateset, rateset_fix_11bg[ic->ic_fixed_rate], 1900 sizeof(sc->sc_cur_rateset)); 1901 } 1902 } 1903 1904 static uint8_t 1905 upgt_rx_rate(struct upgt_softc *sc, const int rate) 1906 { 1907 struct ieee80211com *ic = &sc->sc_ic; 1908 1909 if (ic->ic_curmode == IEEE80211_MODE_11B) { 1910 if (rate < 0 || rate > 3) 1911 /* invalid rate */ 1912 return 0; 1913 1914 switch (rate) { 1915 case 0: 1916 return 2; 1917 case 1: 1918 return 4; 1919 case 2: 1920 return 11; 1921 case 3: 1922 return 22; 1923 default: 1924 return 0; 1925 } 1926 } 1927 1928 if (ic->ic_curmode == IEEE80211_MODE_11G) { 1929 if (rate < 0 || rate > 11) 1930 /* invalid rate */ 1931 return 0; 1932 1933 switch (rate) { 1934 case 0: 1935 return 2; 1936 case 1: 1937 return 4; 1938 case 2: 1939 return 11; 1940 case 3: 1941 return 22; 1942 case 4: 1943 return 12; 1944 case 5: 1945 return 18; 1946 case 6: 1947 return 24; 1948 case 7: 1949 return 36; 1950 case 8: 1951 return 48; 1952 case 9: 1953 return 72; 1954 case 10: 1955 return 96; 1956 case 11: 1957 return 108; 1958 default: 1959 return 0; 1960 } 1961 } 1962 1963 return 0; 1964 } 1965 1966 static int 1967 upgt_set_macfilter(struct upgt_softc *sc, uint8_t state) 1968 { 1969 struct ieee80211com *ic = &sc->sc_ic; 1970 struct ieee80211_node *ni = ic->ic_bss; 1971 struct upgt_data *data_cmd = &sc->cmd_data; 1972 struct upgt_lmac_mem *mem; 1973 struct upgt_lmac_filter *filter; 1974 int len; 1975 const uint8_t broadcast[] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }; 1976 1977 /* 1978 * Transmit the URB containing the CMD data. 1979 */ 1980 len = sizeof(*mem) + sizeof(*filter); 1981 1982 memset(data_cmd->buf, 0, len); 1983 1984 mem = (struct upgt_lmac_mem *)data_cmd->buf; 1985 mem->addr = htole32(sc->sc_memaddr_frame_start + 1986 UPGT_MEMSIZE_FRAME_HEAD); 1987 1988 filter = (struct upgt_lmac_filter *)(mem + 1); 1989 1990 filter->header1.flags = UPGT_H1_FLAGS_TX_NO_CALLBACK; 1991 filter->header1.type = UPGT_H1_TYPE_CTRL; 1992 filter->header1.len = htole16( 1993 sizeof(struct upgt_lmac_filter) - 1994 sizeof(struct upgt_lmac_header)); 1995 1996 filter->header2.reqid = htole32(sc->sc_memaddr_frame_start); 1997 filter->header2.type = htole16(UPGT_H2_TYPE_MACFILTER); 1998 filter->header2.flags = 0; 1999 2000 switch (state) { 2001 case IEEE80211_S_INIT: 2002 DPRINTF(1, "%s: set MAC filter to INIT\n", 2003 device_xname(sc->sc_dev)); 2004 2005 filter->type = htole16(UPGT_FILTER_TYPE_RESET); 2006 break; 2007 case IEEE80211_S_SCAN: 2008 DPRINTF(1, "%s: set MAC filter to SCAN (bssid %s)\n", 2009 device_xname(sc->sc_dev), ether_sprintf(broadcast)); 2010 2011 filter->type = htole16(UPGT_FILTER_TYPE_NONE); 2012 IEEE80211_ADDR_COPY(filter->dst, ic->ic_myaddr); 2013 IEEE80211_ADDR_COPY(filter->src, broadcast); 2014 filter->unknown1 = htole16(UPGT_FILTER_UNKNOWN1); 2015 filter->rxaddr = htole32(sc->sc_memaddr_rx_start); 2016 filter->unknown2 = htole16(UPGT_FILTER_UNKNOWN2); 2017 filter->rxhw = htole32(sc->sc_eeprom_hwrx); 2018 filter->unknown3 = htole16(UPGT_FILTER_UNKNOWN3); 2019 break; 2020 case IEEE80211_S_RUN: 2021 DPRINTF(1, "%s: set MAC filter to RUN (bssid %s)\n", 2022 device_xname(sc->sc_dev), ether_sprintf(ni->ni_bssid)); 2023 2024 filter->type = htole16(UPGT_FILTER_TYPE_STA); 2025 IEEE80211_ADDR_COPY(filter->dst, ic->ic_myaddr); 2026 IEEE80211_ADDR_COPY(filter->src, ni->ni_bssid); 2027 filter->unknown1 = htole16(UPGT_FILTER_UNKNOWN1); 2028 filter->rxaddr = htole32(sc->sc_memaddr_rx_start); 2029 filter->unknown2 = htole16(UPGT_FILTER_UNKNOWN2); 2030 filter->rxhw = htole32(sc->sc_eeprom_hwrx); 2031 filter->unknown3 = htole16(UPGT_FILTER_UNKNOWN3); 2032 break; 2033 default: 2034 aprint_error_dev(sc->sc_dev, 2035 "MAC filter does not know that state\n"); 2036 break; 2037 } 2038 2039 mem->chksum = upgt_chksum_le((uint32_t *)filter, sizeof(*filter)); 2040 2041 if (upgt_bulk_xmit(sc, data_cmd, sc->sc_tx_pipeh, &len, 0) != 0) { 2042 aprint_error_dev(sc->sc_dev, 2043 "could not transmit macfilter CMD data URB\n"); 2044 return EIO; 2045 } 2046 2047 return 0; 2048 } 2049 2050 static int 2051 upgt_set_channel(struct upgt_softc *sc, unsigned channel) 2052 { 2053 struct upgt_data *data_cmd = &sc->cmd_data; 2054 struct upgt_lmac_mem *mem; 2055 struct upgt_lmac_channel *chan; 2056 int len; 2057 2058 DPRINTF(1, "%s: %s: %d\n", device_xname(sc->sc_dev), __func__, 2059 channel); 2060 2061 /* 2062 * Transmit the URB containing the CMD data. 2063 */ 2064 len = sizeof(*mem) + sizeof(*chan); 2065 2066 memset(data_cmd->buf, 0, len); 2067 2068 mem = (struct upgt_lmac_mem *)data_cmd->buf; 2069 mem->addr = htole32(sc->sc_memaddr_frame_start + 2070 UPGT_MEMSIZE_FRAME_HEAD); 2071 2072 chan = (struct upgt_lmac_channel *)(mem + 1); 2073 2074 chan->header1.flags = UPGT_H1_FLAGS_TX_NO_CALLBACK; 2075 chan->header1.type = UPGT_H1_TYPE_CTRL; 2076 chan->header1.len = htole16( 2077 sizeof(struct upgt_lmac_channel) - 2078 sizeof(struct upgt_lmac_header)); 2079 2080 chan->header2.reqid = htole32(sc->sc_memaddr_frame_start); 2081 chan->header2.type = htole16(UPGT_H2_TYPE_CHANNEL); 2082 chan->header2.flags = 0; 2083 2084 chan->unknown1 = htole16(UPGT_CHANNEL_UNKNOWN1); 2085 chan->unknown2 = htole16(UPGT_CHANNEL_UNKNOWN2); 2086 chan->freq6 = sc->sc_eeprom_freq6[channel]; 2087 chan->settings = sc->sc_eeprom_freq6_settings; 2088 chan->unknown3 = UPGT_CHANNEL_UNKNOWN3; 2089 2090 memcpy(chan->freq3_1, &sc->sc_eeprom_freq3[channel].data, 2091 sizeof(chan->freq3_1)); 2092 2093 memcpy(chan->freq4, &sc->sc_eeprom_freq4[channel], 2094 sizeof(sc->sc_eeprom_freq4[channel])); 2095 2096 memcpy(chan->freq3_2, &sc->sc_eeprom_freq3[channel].data, 2097 sizeof(chan->freq3_2)); 2098 2099 mem->chksum = upgt_chksum_le((uint32_t *)chan, sizeof(*chan)); 2100 2101 if (upgt_bulk_xmit(sc, data_cmd, sc->sc_tx_pipeh, &len, 0) != 0) { 2102 aprint_error_dev(sc->sc_dev, 2103 "could not transmit channel CMD data URB\n"); 2104 return EIO; 2105 } 2106 2107 return 0; 2108 } 2109 2110 static void 2111 upgt_set_led(struct upgt_softc *sc, int action) 2112 { 2113 struct ieee80211com *ic = &sc->sc_ic; 2114 struct upgt_data *data_cmd = &sc->cmd_data; 2115 struct upgt_lmac_mem *mem; 2116 struct upgt_lmac_led *led; 2117 struct timeval t; 2118 int len; 2119 2120 /* 2121 * Transmit the URB containing the CMD data. 2122 */ 2123 len = sizeof(*mem) + sizeof(*led); 2124 2125 memset(data_cmd->buf, 0, len); 2126 2127 mem = (struct upgt_lmac_mem *)data_cmd->buf; 2128 mem->addr = htole32(sc->sc_memaddr_frame_start + 2129 UPGT_MEMSIZE_FRAME_HEAD); 2130 2131 led = (struct upgt_lmac_led *)(mem + 1); 2132 2133 led->header1.flags = UPGT_H1_FLAGS_TX_NO_CALLBACK; 2134 led->header1.type = UPGT_H1_TYPE_CTRL; 2135 led->header1.len = htole16( 2136 sizeof(struct upgt_lmac_led) - 2137 sizeof(struct upgt_lmac_header)); 2138 2139 led->header2.reqid = htole32(sc->sc_memaddr_frame_start); 2140 led->header2.type = htole16(UPGT_H2_TYPE_LED); 2141 led->header2.flags = 0; 2142 2143 switch (action) { 2144 case UPGT_LED_OFF: 2145 led->mode = htole16(UPGT_LED_MODE_SET); 2146 led->action_fix = 0; 2147 led->action_tmp = htole16(UPGT_LED_ACTION_OFF); 2148 led->action_tmp_dur = 0; 2149 break; 2150 case UPGT_LED_ON: 2151 led->mode = htole16(UPGT_LED_MODE_SET); 2152 led->action_fix = 0; 2153 led->action_tmp = htole16(UPGT_LED_ACTION_ON); 2154 led->action_tmp_dur = 0; 2155 break; 2156 case UPGT_LED_BLINK: 2157 if (ic->ic_state != IEEE80211_S_RUN) 2158 return; 2159 if (sc->sc_led_blink) 2160 /* previous blink was not finished */ 2161 return; 2162 led->mode = htole16(UPGT_LED_MODE_SET); 2163 led->action_fix = htole16(UPGT_LED_ACTION_OFF); 2164 led->action_tmp = htole16(UPGT_LED_ACTION_ON); 2165 led->action_tmp_dur = htole16(UPGT_LED_ACTION_TMP_DUR); 2166 /* lock blink */ 2167 sc->sc_led_blink = 1; 2168 t.tv_sec = 0; 2169 t.tv_usec = UPGT_LED_ACTION_TMP_DUR * 1000L; 2170 callout_schedule(&sc->led_to, tvtohz(&t)); 2171 break; 2172 default: 2173 return; 2174 } 2175 2176 mem->chksum = upgt_chksum_le((uint32_t *)led, sizeof(*led)); 2177 2178 if (upgt_bulk_xmit(sc, data_cmd, sc->sc_tx_pipeh, &len, 0) != 0) { 2179 aprint_error_dev(sc->sc_dev, 2180 "could not transmit led CMD URB\n"); 2181 } 2182 } 2183 2184 static void 2185 upgt_set_led_blink(void *arg) 2186 { 2187 struct upgt_softc *sc = arg; 2188 2189 /* blink finished, we are ready for a next one */ 2190 sc->sc_led_blink = 0; 2191 callout_stop(&sc->led_to); 2192 } 2193 2194 static int 2195 upgt_get_stats(struct upgt_softc *sc) 2196 { 2197 struct upgt_data *data_cmd = &sc->cmd_data; 2198 struct upgt_lmac_mem *mem; 2199 struct upgt_lmac_stats *stats; 2200 int len; 2201 2202 /* 2203 * Transmit the URB containing the CMD data. 2204 */ 2205 len = sizeof(*mem) + sizeof(*stats); 2206 2207 memset(data_cmd->buf, 0, len); 2208 2209 mem = (struct upgt_lmac_mem *)data_cmd->buf; 2210 mem->addr = htole32(sc->sc_memaddr_frame_start + 2211 UPGT_MEMSIZE_FRAME_HEAD); 2212 2213 stats = (struct upgt_lmac_stats *)(mem + 1); 2214 2215 stats->header1.flags = 0; 2216 stats->header1.type = UPGT_H1_TYPE_CTRL; 2217 stats->header1.len = htole16( 2218 sizeof(struct upgt_lmac_stats) - 2219 sizeof(struct upgt_lmac_header)); 2220 2221 stats->header2.reqid = htole32(sc->sc_memaddr_frame_start); 2222 stats->header2.type = htole16(UPGT_H2_TYPE_STATS); 2223 stats->header2.flags = 0; 2224 2225 mem->chksum = upgt_chksum_le((uint32_t *)stats, sizeof(*stats)); 2226 2227 if (upgt_bulk_xmit(sc, data_cmd, sc->sc_tx_pipeh, &len, 0) != 0) { 2228 aprint_error_dev(sc->sc_dev, 2229 "could not transmit statistics CMD data URB\n"); 2230 return EIO; 2231 } 2232 2233 return 0; 2234 2235 } 2236 2237 static int 2238 upgt_alloc_tx(struct upgt_softc *sc) 2239 { 2240 int i; 2241 2242 sc->tx_queued = 0; 2243 2244 for (i = 0; i < UPGT_TX_COUNT; i++) { 2245 struct upgt_data *data_tx = &sc->tx_data[i]; 2246 2247 data_tx->sc = sc; 2248 2249 data_tx->xfer = usbd_alloc_xfer(sc->sc_udev); 2250 if (data_tx->xfer == NULL) { 2251 aprint_error_dev(sc->sc_dev, 2252 "could not allocate TX xfer\n"); 2253 return ENOMEM; 2254 } 2255 2256 data_tx->buf = usbd_alloc_buffer(data_tx->xfer, MCLBYTES); 2257 if (data_tx->buf == NULL) { 2258 aprint_error_dev(sc->sc_dev, 2259 "could not allocate TX buffer\n"); 2260 return ENOMEM; 2261 } 2262 } 2263 2264 return 0; 2265 } 2266 2267 static int 2268 upgt_alloc_rx(struct upgt_softc *sc) 2269 { 2270 struct upgt_data *data_rx = &sc->rx_data; 2271 2272 data_rx->sc = sc; 2273 2274 data_rx->xfer = usbd_alloc_xfer(sc->sc_udev); 2275 if (data_rx->xfer == NULL) { 2276 aprint_error_dev(sc->sc_dev, "could not allocate RX xfer\n"); 2277 return ENOMEM; 2278 } 2279 2280 data_rx->buf = usbd_alloc_buffer(data_rx->xfer, MCLBYTES); 2281 if (data_rx->buf == NULL) { 2282 aprint_error_dev(sc->sc_dev, 2283 "could not allocate RX buffer\n"); 2284 return ENOMEM; 2285 } 2286 2287 return 0; 2288 } 2289 2290 static int 2291 upgt_alloc_cmd(struct upgt_softc *sc) 2292 { 2293 struct upgt_data *data_cmd = &sc->cmd_data; 2294 2295 data_cmd->sc = sc; 2296 2297 data_cmd->xfer = usbd_alloc_xfer(sc->sc_udev); 2298 if (data_cmd->xfer == NULL) { 2299 aprint_error_dev(sc->sc_dev, "could not allocate RX xfer\n"); 2300 return ENOMEM; 2301 } 2302 2303 data_cmd->buf = usbd_alloc_buffer(data_cmd->xfer, MCLBYTES); 2304 if (data_cmd->buf == NULL) { 2305 aprint_error_dev(sc->sc_dev, 2306 "could not allocate RX buffer\n"); 2307 return ENOMEM; 2308 } 2309 2310 mutex_init(&sc->sc_mtx, MUTEX_DEFAULT, IPL_SOFTNET); 2311 2312 return 0; 2313 } 2314 2315 static void 2316 upgt_free_tx(struct upgt_softc *sc) 2317 { 2318 int i; 2319 2320 for (i = 0; i < UPGT_TX_COUNT; i++) { 2321 struct upgt_data *data_tx = &sc->tx_data[i]; 2322 2323 if (data_tx->xfer != NULL) { 2324 usbd_free_xfer(data_tx->xfer); 2325 data_tx->xfer = NULL; 2326 } 2327 2328 data_tx->ni = NULL; 2329 } 2330 } 2331 2332 static void 2333 upgt_free_rx(struct upgt_softc *sc) 2334 { 2335 struct upgt_data *data_rx = &sc->rx_data; 2336 2337 if (data_rx->xfer != NULL) { 2338 usbd_free_xfer(data_rx->xfer); 2339 data_rx->xfer = NULL; 2340 } 2341 2342 data_rx->ni = NULL; 2343 } 2344 2345 static void 2346 upgt_free_cmd(struct upgt_softc *sc) 2347 { 2348 struct upgt_data *data_cmd = &sc->cmd_data; 2349 2350 if (data_cmd->xfer != NULL) { 2351 usbd_free_xfer(data_cmd->xfer); 2352 data_cmd->xfer = NULL; 2353 } 2354 2355 mutex_destroy(&sc->sc_mtx); 2356 } 2357 2358 static int 2359 upgt_bulk_xmit(struct upgt_softc *sc, struct upgt_data *data, 2360 usbd_pipe_handle pipeh, uint32_t *size, int flags) 2361 { 2362 usbd_status status; 2363 2364 status = usbd_bulk_transfer(data->xfer, pipeh, 2365 USBD_NO_COPY | flags, UPGT_USB_TIMEOUT, data->buf, size, 2366 "upgt_bulk_xmit"); 2367 if (status != USBD_NORMAL_COMPLETION) { 2368 aprint_error_dev(sc->sc_dev, "%s: error %s\n", __func__, 2369 usbd_errstr(status)); 2370 return EIO; 2371 } 2372 2373 return 0; 2374 } 2375 2376 #if 0 2377 static void 2378 upgt_hexdump(void *buf, int len) 2379 { 2380 int i; 2381 2382 for (i = 0; i < len; i++) { 2383 if (i % 16 == 0) 2384 printf("%s%5i:", i ? "\n" : "", i); 2385 if (i % 4 == 0) 2386 printf(" "); 2387 printf("%02x", (int)*((uint8_t *)buf + i)); 2388 } 2389 printf("\n"); 2390 } 2391 #endif 2392 2393 static uint32_t 2394 upgt_crc32_le(const void *buf, size_t size) 2395 { 2396 uint32_t crc; 2397 2398 crc = ether_crc32_le(buf, size); 2399 2400 /* apply final XOR value as common for CRC-32 */ 2401 crc = htole32(crc ^ 0xffffffffU); 2402 2403 return crc; 2404 } 2405 2406 /* 2407 * The firmware awaits a checksum for each frame we send to it. 2408 * The algorithm used therefor is uncommon but somehow similar to CRC32. 2409 */ 2410 static uint32_t 2411 upgt_chksum_le(const uint32_t *buf, size_t size) 2412 { 2413 int i; 2414 uint32_t crc = 0; 2415 2416 for (i = 0; i < size; i += sizeof(uint32_t)) { 2417 crc = htole32(crc ^ *buf++); 2418 crc = htole32((crc >> 5) ^ (crc << 3)); 2419 } 2420 2421 return crc; 2422 } 2423