if_axen.c revision 1.3.6.6
1 /* $NetBSD: if_axen.c,v 1.3.6.6 2015/04/06 15:18:13 skrll Exp $ */ 2 /* $OpenBSD: if_axen.c,v 1.3 2013/10/21 10:10:22 yuo Exp $ */ 3 4 /* 5 * Copyright (c) 2013 Yojiro UO <yuo (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 /* 21 * ASIX Electronics AX88178a USB 2.0 ethernet and AX88179 USB 3.0 Ethernet 22 * driver. 23 */ 24 25 #include <sys/cdefs.h> 26 __KERNEL_RCSID(0, "$NetBSD: if_axen.c,v 1.3.6.6 2015/04/06 15:18:13 skrll Exp $"); 27 28 #ifdef _KERNEL_OPT 29 #include "opt_inet.h" 30 #endif 31 32 #include <sys/param.h> 33 #include <sys/bus.h> 34 #include <sys/device.h> 35 #include <sys/kernel.h> 36 #include <sys/mbuf.h> 37 #include <sys/module.h> 38 #include <sys/rwlock.h> 39 #include <sys/socket.h> 40 #include <sys/sockio.h> 41 #include <sys/systm.h> 42 43 #include <sys/rnd.h> 44 45 #include <net/if.h> 46 #include <net/if_dl.h> 47 #include <net/if_ether.h> 48 #include <net/if_media.h> 49 50 #include <net/bpf.h> 51 52 #include <dev/mii/mii.h> 53 #include <dev/mii/miivar.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_axenreg.h> 62 63 #ifdef AXEN_DEBUG 64 #define DPRINTF(x) do { if (axendebug) printf x; } while (/*CONSTCOND*/0) 65 #define DPRINTFN(n,x) do { if (axendebug >= (n)) printf x; } while (/*CONSTCOND*/0) 66 int axendebug = 0; 67 #else 68 #define DPRINTF(x) 69 #define DPRINTFN(n,x) 70 #endif 71 72 #define AXEN_TOE /* enable checksum offload function */ 73 74 /* 75 * Various supported device vendors/products. 76 */ 77 static const struct axen_type axen_devs[] = { 78 #if 0 /* not tested */ 79 { { USB_VENDOR_ASIX, USB_PRODUCT_ASIX_AX88178A}, AX178A }, 80 #endif 81 { { USB_VENDOR_ASIX, USB_PRODUCT_ASIX_AX88179}, AX179 } 82 }; 83 84 #define axen_lookup(v, p) ((const struct axen_type *)usb_lookup(axen_devs, v, p)) 85 86 static int axen_match(device_t, cfdata_t, void *); 87 static void axen_attach(device_t, device_t, void *); 88 static int axen_detach(device_t, int); 89 static int axen_activate(device_t, devact_t); 90 91 CFATTACH_DECL_NEW(axen, sizeof(struct axen_softc), 92 axen_match, axen_attach, axen_detach, axen_activate); 93 94 static int axen_tx_list_init(struct axen_softc *); 95 static int axen_rx_list_init(struct axen_softc *); 96 static struct mbuf *axen_newbuf(void); 97 static int axen_encap(struct axen_softc *, struct mbuf *, int); 98 static void axen_rxeof(struct usbd_xfer *, void *, usbd_status); 99 static void axen_txeof(struct usbd_xfer *, void *, usbd_status); 100 static void axen_tick(void *); 101 static void axen_tick_task(void *); 102 static void axen_start(struct ifnet *); 103 static int axen_ioctl(struct ifnet *, u_long, void *); 104 static int axen_init(struct ifnet *); 105 static void axen_stop(struct ifnet *, int); 106 static void axen_watchdog(struct ifnet *); 107 static int axen_miibus_readreg(device_t, int, int); 108 static void axen_miibus_writereg(device_t, int, int, int); 109 static void axen_miibus_statchg(struct ifnet *); 110 static int axen_cmd(struct axen_softc *, int, int, int, void *); 111 static int axen_ifmedia_upd(struct ifnet *); 112 static void axen_ifmedia_sts(struct ifnet *, struct ifmediareq *); 113 static void axen_reset(struct axen_softc *); 114 #if 0 115 static int axen_ax88179_eeprom(struct axen_softc *, void *); 116 #endif 117 118 static void axen_iff(struct axen_softc *); 119 static void axen_lock_mii(struct axen_softc *); 120 static void axen_unlock_mii(struct axen_softc *); 121 122 static void axen_ax88179_init(struct axen_softc *); 123 124 /* Get exclusive access to the MII registers */ 125 static void 126 axen_lock_mii(struct axen_softc *sc) 127 { 128 129 sc->axen_refcnt++; 130 rw_enter(&sc->axen_mii_lock, RW_WRITER); 131 } 132 133 static void 134 axen_unlock_mii(struct axen_softc *sc) 135 { 136 137 rw_exit(&sc->axen_mii_lock); 138 if (--sc->axen_refcnt < 0) 139 usb_detach_wakeupold(sc->axen_dev); 140 } 141 142 static int 143 axen_cmd(struct axen_softc *sc, int cmd, int index, int val, void *buf) 144 { 145 usb_device_request_t req; 146 usbd_status err; 147 148 KASSERT(rw_lock_held(&sc->axen_mii_lock)); 149 150 if (sc->axen_dying) 151 return 0; 152 153 if (AXEN_CMD_DIR(cmd)) 154 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 155 else 156 req.bmRequestType = UT_READ_VENDOR_DEVICE; 157 req.bRequest = AXEN_CMD_CMD(cmd); 158 USETW(req.wValue, val); 159 USETW(req.wIndex, index); 160 USETW(req.wLength, AXEN_CMD_LEN(cmd)); 161 162 err = usbd_do_request(sc->axen_udev, &req, buf); 163 DPRINTFN(5, ("axen_cmd: cmd 0x%04x val 0x%04x len %d\n", 164 cmd, val, AXEN_CMD_LEN(cmd))); 165 166 if (err) { 167 DPRINTF(("axen_cmd err: cmd: %d, error: %d\n", cmd, err)); 168 return -1; 169 } 170 171 return 0; 172 } 173 174 static int 175 axen_miibus_readreg(device_t dev, int phy, int reg) 176 { 177 struct axen_softc *sc = device_private(dev); 178 usbd_status err; 179 uint16_t val; 180 int ival; 181 182 if (sc->axen_dying) { 183 DPRINTF(("axen: dying\n")); 184 return 0; 185 } 186 187 if (sc->axen_phyno != phy) 188 return 0; 189 190 axen_lock_mii(sc); 191 err = axen_cmd(sc, AXEN_CMD_MII_READ_REG, reg, phy, &val); 192 axen_unlock_mii(sc); 193 194 if (err) { 195 aprint_error_dev(sc->axen_dev, "read PHY failed\n"); 196 return -1; 197 } 198 199 ival = le16toh(val); 200 DPRINTFN(2,("axen_miibus_readreg: phy 0x%x reg 0x%x val 0x%x\n", 201 phy, reg, ival)); 202 203 if (reg == MII_BMSR) { 204 ival &= ~BMSR_EXTCAP; 205 } 206 207 return ival; 208 } 209 210 static void 211 axen_miibus_writereg(device_t dev, int phy, int reg, int val) 212 { 213 struct axen_softc *sc = device_private(dev); 214 usbd_status err; 215 uint16_t uval; 216 217 if (sc->axen_dying) 218 return; 219 220 if (sc->axen_phyno != phy) 221 return; 222 223 uval = htole16(val); 224 axen_lock_mii(sc); 225 err = axen_cmd(sc, AXEN_CMD_MII_WRITE_REG, reg, phy, &uval); 226 axen_unlock_mii(sc); 227 DPRINTFN(2, ("axen_miibus_writereg: phy 0x%x reg 0x%x val 0x%0x\n", 228 phy, reg, val)); 229 230 if (err) { 231 aprint_error_dev(sc->axen_dev, "write PHY failed\n"); 232 return; 233 } 234 } 235 236 static void 237 axen_miibus_statchg(struct ifnet *ifp) 238 { 239 struct axen_softc *sc = ifp->if_softc; 240 struct mii_data *mii = GET_MII(sc); 241 int err; 242 uint16_t val; 243 uint16_t wval; 244 245 sc->axen_link = 0; 246 if ((mii->mii_media_status & (IFM_ACTIVE | IFM_AVALID)) == 247 (IFM_ACTIVE | IFM_AVALID)) { 248 switch (IFM_SUBTYPE(mii->mii_media_active)) { 249 case IFM_10_T: 250 case IFM_100_TX: 251 sc->axen_link++; 252 break; 253 case IFM_1000_T: 254 sc->axen_link++; 255 break; 256 default: 257 break; 258 } 259 } 260 261 /* Lost link, do nothing. */ 262 if (sc->axen_link == 0) 263 return; 264 265 val = 0; 266 if ((mii->mii_media_active & IFM_GMASK) == IFM_FDX) 267 val |= AXEN_MEDIUM_FDX; 268 269 val |= (AXEN_MEDIUM_RECV_EN | AXEN_MEDIUM_ALWAYS_ONE); 270 val |= (AXEN_MEDIUM_RXFLOW_CTRL_EN | AXEN_MEDIUM_TXFLOW_CTRL_EN); 271 272 switch (IFM_SUBTYPE(mii->mii_media_active)) { 273 case IFM_1000_T: 274 val |= AXEN_MEDIUM_GIGA | AXEN_MEDIUM_EN_125MHZ; 275 break; 276 case IFM_100_TX: 277 val |= AXEN_MEDIUM_PS; 278 break; 279 case IFM_10_T: 280 /* doesn't need to be handled */ 281 break; 282 } 283 284 DPRINTF(("axen_miibus_statchg: val=0x%x\n", val)); 285 wval = htole16(val); 286 axen_lock_mii(sc); 287 err = axen_cmd(sc, AXEN_CMD_MAC_WRITE2, 2, AXEN_MEDIUM_STATUS, &wval); 288 axen_unlock_mii(sc); 289 if (err) { 290 aprint_error_dev(sc->axen_dev, "media change failed\n"); 291 return; 292 } 293 } 294 295 /* 296 * Set media options. 297 */ 298 static int 299 axen_ifmedia_upd(struct ifnet *ifp) 300 { 301 struct axen_softc *sc = ifp->if_softc; 302 struct mii_data *mii = GET_MII(sc); 303 int rc; 304 305 sc->axen_link = 0; 306 307 if (mii->mii_instance) { 308 struct mii_softc *miisc; 309 310 LIST_FOREACH(miisc, &mii->mii_phys, mii_list) 311 mii_phy_reset(miisc); 312 } 313 314 if ((rc = mii_mediachg(mii)) == ENXIO) 315 return 0; 316 return rc; 317 } 318 319 /* 320 * Report current media status. 321 */ 322 static void 323 axen_ifmedia_sts(struct ifnet *ifp, struct ifmediareq *ifmr) 324 { 325 struct axen_softc *sc = ifp->if_softc; 326 struct mii_data *mii = GET_MII(sc); 327 328 mii_pollstat(mii); 329 ifmr->ifm_active = mii->mii_media_active; 330 ifmr->ifm_status = mii->mii_media_status; 331 } 332 333 static void 334 axen_iff(struct axen_softc *sc) 335 { 336 struct ifnet *ifp = GET_IFP(sc); 337 struct ethercom *ec = &sc->axen_ec; 338 struct ether_multi *enm; 339 struct ether_multistep step; 340 uint32_t h = 0; 341 uint16_t rxmode; 342 uint8_t hashtbl[8] = { 0, 0, 0, 0, 0, 0, 0, 0 }; 343 uint16_t wval; 344 345 if (sc->axen_dying) 346 return; 347 348 rxmode = 0; 349 350 /* Enable receiver, set RX mode */ 351 axen_lock_mii(sc); 352 axen_cmd(sc, AXEN_CMD_MAC_READ2, 2, AXEN_MAC_RXCTL, &wval); 353 rxmode = le16toh(wval); 354 rxmode &= ~(AXEN_RXCTL_ACPT_ALL_MCAST | AXEN_RXCTL_ACPT_PHY_MCAST | 355 AXEN_RXCTL_PROMISC); 356 ifp->if_flags &= ~IFF_ALLMULTI; 357 358 /* 359 * Always accept broadcast frames. 360 * Always accept frames destined to our station address. 361 */ 362 rxmode |= AXEN_RXCTL_ACPT_BCAST; 363 364 if (ifp->if_flags & IFF_PROMISC || ec->ec_multicnt > 0 /* XXX */) { 365 ifp->if_flags |= IFF_ALLMULTI; 366 rxmode |= AXEN_RXCTL_ACPT_ALL_MCAST | AXEN_RXCTL_ACPT_PHY_MCAST; 367 if (ifp->if_flags & IFF_PROMISC) 368 rxmode |= AXEN_RXCTL_PROMISC; 369 } else { 370 rxmode |= AXEN_RXCTL_ACPT_ALL_MCAST | AXEN_RXCTL_ACPT_PHY_MCAST; 371 372 /* now program new ones */ 373 ETHER_FIRST_MULTI(step, ec, enm); 374 while (enm != NULL) { 375 h = ether_crc32_be(enm->enm_addrlo, 376 ETHER_ADDR_LEN) >> 26; 377 hashtbl[h / 8] |= 1 << (h % 8); 378 ETHER_NEXT_MULTI(step, enm); 379 } 380 } 381 382 axen_cmd(sc, AXEN_CMD_MAC_WRITE_FILTER, 8, AXEN_FILTER_MULTI, hashtbl); 383 wval = htole16(rxmode); 384 axen_cmd(sc, AXEN_CMD_MAC_WRITE2, 2, AXEN_MAC_RXCTL, &wval); 385 axen_unlock_mii(sc); 386 } 387 388 static void 389 axen_reset(struct axen_softc *sc) 390 { 391 392 if (sc->axen_dying) 393 return; 394 /* XXX What to reset? */ 395 396 /* Wait a little while for the chip to get its brains in order. */ 397 DELAY(1000); 398 } 399 400 #if 0 /* not used */ 401 #define AXEN_GPIO_WRITE(x,y) do { \ 402 axen_cmd(sc, AXEN_CMD_WRITE_GPIO, 0, (x), NULL); \ 403 usbd_delay_ms(sc->axen_udev, (y)); \ 404 } while (/*CONSTCOND*/0) 405 406 static int 407 axen_ax88179_eeprom(struct axen_softc *sc, void *addr) 408 { 409 int i, retry; 410 uint8_t eeprom[20]; 411 uint16_t csum; 412 uint16_t buf; 413 414 for (i = 0; i < 6; i++) { 415 /* set eeprom address */ 416 buf = htole16(i); 417 axen_cmd(sc, AXEN_CMD_MAC_WRITE, 1, AXEN_MAC_EEPROM_ADDR, &buf); 418 419 /* set eeprom command */ 420 buf = htole16(AXEN_EEPROM_READ); 421 axen_cmd(sc, AXEN_CMD_MAC_WRITE, 1, AXEN_MAC_EEPROM_CMD, &buf); 422 423 /* check the value is ready */ 424 retry = 3; 425 do { 426 buf = htole16(AXEN_EEPROM_READ); 427 usbd_delay_ms(sc->axen_udev, 10); 428 axen_cmd(sc, AXEN_CMD_MAC_READ, 1, AXEN_MAC_EEPROM_CMD, 429 &buf); 430 retry--; 431 if (retry < 0) 432 return EINVAL; 433 } while ((le16toh(buf) & 0xff) & AXEN_EEPROM_BUSY); 434 435 /* read data */ 436 axen_cmd(sc, AXEN_CMD_MAC_READ2, 2, AXEN_EEPROM_READ, 437 &eeprom[i * 2]); 438 439 /* sanity check */ 440 if ((i == 0) && (eeprom[0] == 0xff)) 441 return EINVAL; 442 } 443 444 /* check checksum */ 445 csum = eeprom[6] + eeprom[7] + eeprom[8] + eeprom[9]; 446 csum = (csum >> 8) + (csum & 0xff) + eeprom[10]; 447 if (csum != 0xff) { 448 printf("eeprom checksum mismatchi(0x%02x)\n", csum); 449 return EINVAL; 450 } 451 452 memcpy(addr, eeprom, ETHER_ADDR_LEN); 453 return 0; 454 } 455 #endif 456 457 static void 458 axen_ax88179_init(struct axen_softc *sc) 459 { 460 struct axen_qctrl qctrl; 461 uint16_t ctl, temp; 462 uint16_t wval; 463 uint8_t val; 464 465 axen_lock_mii(sc); 466 467 /* XXX: ? */ 468 axen_cmd(sc, AXEN_CMD_MAC_READ, 1, AXEN_UNK_05, &val); 469 DPRINTFN(5, ("AXEN_CMD_MAC_READ(0x05): 0x%02x\n", val)); 470 471 /* check AX88179 version, UA1 / UA2 */ 472 axen_cmd(sc, AXEN_CMD_MAC_READ, 1, AXEN_GENERAL_STATUS, &val); 473 /* UA1 */ 474 if (!(val & AXEN_GENERAL_STATUS_MASK)) { 475 sc->axen_rev = AXEN_REV_UA1; 476 DPRINTF(("AX88179 ver. UA1\n")); 477 } else { 478 sc->axen_rev = AXEN_REV_UA2; 479 DPRINTF(("AX88179 ver. UA2\n")); 480 } 481 482 /* power up ethernet PHY */ 483 wval = htole16(0); 484 axen_cmd(sc, AXEN_CMD_MAC_WRITE2, 2, AXEN_PHYPWR_RSTCTL, &wval); 485 486 wval = htole16(AXEN_PHYPWR_RSTCTL_IPRL); 487 axen_cmd(sc, AXEN_CMD_MAC_WRITE2, 2, AXEN_PHYPWR_RSTCTL, &wval); 488 usbd_delay_ms(sc->axen_udev, 200); 489 490 /* set clock mode */ 491 val = AXEN_PHYCLK_ACS | AXEN_PHYCLK_BCS; 492 axen_cmd(sc, AXEN_CMD_MAC_WRITE, 1, AXEN_PHYCLK, &val); 493 usbd_delay_ms(sc->axen_udev, 100); 494 495 /* set monitor mode (disable) */ 496 val = AXEN_MONITOR_NONE; 497 axen_cmd(sc, AXEN_CMD_MAC_WRITE, 1, AXEN_MONITOR_MODE, &val); 498 499 /* enable auto detach */ 500 axen_cmd(sc, AXEN_CMD_EEPROM_READ, 2, AXEN_EEPROM_STAT, &wval); 501 temp = le16toh(wval); 502 DPRINTFN(2,("EEPROM0x43 = 0x%04x\n", temp)); 503 if (!(temp == 0xffff) && !(temp & 0x0100)) { 504 /* Enable auto detach bit */ 505 val = 0; 506 axen_cmd(sc, AXEN_CMD_MAC_WRITE, 1, AXEN_PHYCLK, &val); 507 val = AXEN_PHYCLK_ULR; 508 axen_cmd(sc, AXEN_CMD_MAC_WRITE, 1, AXEN_PHYCLK, &val); 509 usbd_delay_ms(sc->axen_udev, 100); 510 511 axen_cmd(sc, AXEN_CMD_MAC_READ2, 2, AXEN_PHYPWR_RSTCTL, &wval); 512 ctl = le16toh(wval); 513 ctl |= AXEN_PHYPWR_RSTCTL_AUTODETACH; 514 wval = htole16(ctl); 515 axen_cmd(sc, AXEN_CMD_MAC_WRITE2, 2, AXEN_PHYPWR_RSTCTL, &wval); 516 usbd_delay_ms(sc->axen_udev, 200); 517 aprint_error_dev(sc->axen_dev, "enable auto detach (0x%04x)\n", 518 ctl); 519 } 520 521 /* bulkin queue setting */ 522 axen_cmd(sc, AXEN_CMD_MAC_READ, 1, AXEN_USB_UPLINK, &val); 523 switch (val) { 524 case AXEN_USB_FS: 525 DPRINTF(("uplink: USB1.1\n")); 526 qctrl.ctrl = 0x07; 527 qctrl.timer_low = 0xcc; 528 qctrl.timer_high = 0x4c; 529 qctrl.bufsize = AXEN_BUFSZ_LS - 1; 530 qctrl.ifg = 0x08; 531 break; 532 case AXEN_USB_HS: 533 DPRINTF(("uplink: USB2.0\n")); 534 qctrl.ctrl = 0x07; 535 qctrl.timer_low = 0x02; 536 qctrl.timer_high = 0xa0; 537 qctrl.bufsize = AXEN_BUFSZ_HS - 1; 538 qctrl.ifg = 0xff; 539 break; 540 case AXEN_USB_SS: 541 DPRINTF(("uplink: USB3.0\n")); 542 qctrl.ctrl = 0x07; 543 qctrl.timer_low = 0x4f; 544 qctrl.timer_high = 0x00; 545 qctrl.bufsize = AXEN_BUFSZ_SS - 1; 546 qctrl.ifg = 0xff; 547 break; 548 default: 549 aprint_error_dev(sc->axen_dev, "unknown uplink bus:0x%02x\n", 550 val); 551 axen_unlock_mii(sc); 552 return; 553 } 554 axen_cmd(sc, AXEN_CMD_MAC_SET_RXSR, 5, AXEN_RX_BULKIN_QCTRL, &qctrl); 555 556 /* 557 * set buffer high/low watermark to pause/resume. 558 * write 2byte will set high/log simultaneous with AXEN_PAUSE_HIGH. 559 * XXX: what is the best value? OSX driver uses 0x3c-0x4c as LOW-HIGH 560 * watermark parameters. 561 */ 562 val = 0x34; 563 axen_cmd(sc, AXEN_CMD_MAC_WRITE, 1, AXEN_PAUSE_LOW_WATERMARK, &val); 564 val = 0x52; 565 axen_cmd(sc, AXEN_CMD_MAC_WRITE, 1, AXEN_PAUSE_HIGH_WATERMARK, &val); 566 567 /* Set RX/TX configuration. */ 568 /* Offloadng enable */ 569 #ifdef AXEN_TOE 570 val = AXEN_RXCOE_IPv4 | AXEN_RXCOE_TCPv4 | AXEN_RXCOE_UDPv4 | 571 AXEN_RXCOE_TCPv6 | AXEN_RXCOE_UDPv6; 572 #else 573 val = AXEN_RXCOE_OFF; 574 #endif 575 axen_cmd(sc, AXEN_CMD_MAC_WRITE, 1, AXEN_RX_COE, &val); 576 577 #ifdef AXEN_TOE 578 val = AXEN_TXCOE_IPv4 | AXEN_TXCOE_TCPv4 | AXEN_TXCOE_UDPv4 | 579 AXEN_TXCOE_TCPv6 | AXEN_TXCOE_UDPv6; 580 #else 581 val = AXEN_TXCOE_OFF; 582 #endif 583 axen_cmd(sc, AXEN_CMD_MAC_WRITE, 1, AXEN_TX_COE, &val); 584 585 /* Set RX control register */ 586 ctl = AXEN_RXCTL_IPE | AXEN_RXCTL_DROPCRCERR | AXEN_RXCTL_AUTOB; 587 ctl |= AXEN_RXCTL_ACPT_PHY_MCAST | AXEN_RXCTL_ACPT_ALL_MCAST; 588 ctl |= AXEN_RXCTL_START; 589 wval = htole16(ctl); 590 axen_cmd(sc, AXEN_CMD_MAC_WRITE2, 2, AXEN_MAC_RXCTL, &wval); 591 592 /* set monitor mode (enable) */ 593 val = AXEN_MONITOR_PMETYPE | AXEN_MONITOR_PMEPOL | AXEN_MONITOR_RWMP; 594 axen_cmd(sc, AXEN_CMD_MAC_WRITE, 1, AXEN_MONITOR_MODE, &val); 595 axen_cmd(sc, AXEN_CMD_MAC_READ, 1, AXEN_MONITOR_MODE, &val); 596 DPRINTF(("axen: Monitor mode = 0x%02x\n", val)); 597 598 /* set medium type */ 599 ctl = AXEN_MEDIUM_GIGA | AXEN_MEDIUM_FDX | AXEN_MEDIUM_ALWAYS_ONE | 600 AXEN_MEDIUM_RXFLOW_CTRL_EN | AXEN_MEDIUM_TXFLOW_CTRL_EN; 601 ctl |= AXEN_MEDIUM_RECV_EN; 602 wval = htole16(ctl); 603 DPRINTF(("axen: set to medium mode: 0x%04x\n", ctl)); 604 axen_cmd(sc, AXEN_CMD_MAC_WRITE2, 2, AXEN_MEDIUM_STATUS, &wval); 605 usbd_delay_ms(sc->axen_udev, 100); 606 607 axen_cmd(sc, AXEN_CMD_MAC_READ2, 2, AXEN_MEDIUM_STATUS, &wval); 608 DPRINTF(("axen: current medium mode: 0x%04x\n", le16toh(wval))); 609 610 axen_unlock_mii(sc); 611 612 #if 0 /* XXX: TBD.... */ 613 #define GMII_LED_ACTIVE 0x1a 614 #define GMII_PHY_PAGE_SEL 0x1e 615 #define GMII_PHY_PAGE_SEL 0x1f 616 #define GMII_PAGE_EXT 0x0007 617 axen_miibus_writereg(&sc->axen_dev, sc->axen_phyno, GMII_PHY_PAGE_SEL, 618 GMII_PAGE_EXT); 619 axen_miibus_writereg(&sc->axen_dev, sc->axen_phyno, GMII_PHY_PAGE, 620 0x002c); 621 #endif 622 623 #if 1 /* XXX: phy hack ? */ 624 axen_miibus_writereg(sc->axen_dev, sc->axen_phyno, 0x1F, 0x0005); 625 axen_miibus_writereg(sc->axen_dev, sc->axen_phyno, 0x0C, 0x0000); 626 val = axen_miibus_readreg(sc->axen_dev, sc->axen_phyno, 0x0001); 627 axen_miibus_writereg(sc->axen_dev, sc->axen_phyno, 0x01, 628 val | 0x0080); 629 axen_miibus_writereg(sc->axen_dev, sc->axen_phyno, 0x1F, 0x0000); 630 #endif 631 } 632 633 static int 634 axen_match(device_t parent, cfdata_t match, void *aux) 635 { 636 struct usb_attach_arg *uaa = aux; 637 638 return axen_lookup(uaa->uaa_vendor, uaa->uaa_product) != NULL ? 639 UMATCH_VENDOR_PRODUCT : UMATCH_NONE; 640 } 641 642 static void 643 axen_attach(device_t parent, device_t self, void *aux) 644 { 645 struct axen_softc *sc = device_private(self); 646 struct usb_attach_arg *uaa = aux; 647 struct usbd_device *dev = uaa->uaa_device; 648 usbd_status err; 649 usb_interface_descriptor_t *id; 650 usb_endpoint_descriptor_t *ed; 651 struct mii_data *mii; 652 uint8_t eaddr[ETHER_ADDR_LEN]; 653 char *devinfop; 654 const char *devname = device_xname(self); 655 struct ifnet *ifp; 656 int i, s; 657 658 aprint_naive("\n"); 659 aprint_normal("\n"); 660 661 sc->axen_dev = self; 662 sc->axen_udev = dev; 663 664 devinfop = usbd_devinfo_alloc(dev, 0); 665 aprint_normal_dev(self, "%s\n", devinfop); 666 usbd_devinfo_free(devinfop); 667 668 err = usbd_set_config_no(dev, AXEN_CONFIG_NO, 1); 669 if (err) { 670 aprint_error_dev(self, "failed to set configuration" 671 ", err=%s\n", usbd_errstr(err)); 672 return; 673 } 674 675 sc->axen_flags = axen_lookup(uaa->uaa_vendor, uaa->uaa_product)->axen_flags; 676 677 rw_init(&sc->axen_mii_lock); 678 usb_init_task(&sc->axen_tick_task, axen_tick_task, sc, 0); 679 680 err = usbd_device2interface_handle(dev, AXEN_IFACE_IDX,&sc->axen_iface); 681 if (err) { 682 aprint_error_dev(self, "getting interface handle failed\n"); 683 return; 684 } 685 686 sc->axen_product = uaa->uaa_product; 687 sc->axen_vendor = uaa->uaa_vendor; 688 689 id = usbd_get_interface_descriptor(sc->axen_iface); 690 691 /* decide on what our bufsize will be */ 692 switch (sc->axen_udev->ud_speed) { 693 case USB_SPEED_SUPER: 694 sc->axen_bufsz = AXEN_BUFSZ_SS * 1024; 695 break; 696 case USB_SPEED_HIGH: 697 sc->axen_bufsz = AXEN_BUFSZ_HS * 1024; 698 break; 699 default: 700 sc->axen_bufsz = AXEN_BUFSZ_LS * 1024; 701 break; 702 } 703 704 /* Find endpoints. */ 705 for (i = 0; i < id->bNumEndpoints; i++) { 706 ed = usbd_interface2endpoint_descriptor(sc->axen_iface, i); 707 if (!ed) { 708 aprint_error_dev(self, "couldn't get ep %d\n", i); 709 return; 710 } 711 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 712 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { 713 sc->axen_ed[AXEN_ENDPT_RX] = ed->bEndpointAddress; 714 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT && 715 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { 716 sc->axen_ed[AXEN_ENDPT_TX] = ed->bEndpointAddress; 717 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 718 UE_GET_XFERTYPE(ed->bmAttributes) == UE_INTERRUPT) { 719 sc->axen_ed[AXEN_ENDPT_INTR] = ed->bEndpointAddress; 720 } 721 } 722 723 s = splnet(); 724 725 sc->axen_phyno = AXEN_PHY_ID; 726 DPRINTF(("%s: phyno %d\n", device_xname(self), sc->axen_phyno)); 727 728 /* 729 * Get station address. 730 */ 731 #if 0 /* read from eeprom */ 732 if (axen_ax88179_eeprom(sc, &eaddr)) { 733 printf("EEPROM checksum error\n"); 734 return; 735 } 736 #else /* use MAC command */ 737 axen_lock_mii(sc); 738 axen_cmd(sc, AXEN_CMD_MAC_READ_ETHER, 6, AXEN_CMD_MAC_NODE_ID, &eaddr); 739 axen_unlock_mii(sc); 740 #endif 741 axen_ax88179_init(sc); 742 743 /* 744 * An ASIX chip was detected. Inform the world. 745 */ 746 if (sc->axen_flags & AX178A) 747 aprint_normal_dev(self, "AX88178a\n"); 748 else if (sc->axen_flags & AX179) 749 aprint_normal_dev(self, "AX88179\n"); 750 aprint_normal_dev(self, "Ethernet address %s\n", ether_sprintf(eaddr)); 751 752 /* Initialize interface info.*/ 753 754 ifp = &sc->sc_if; 755 ifp->if_softc = sc; 756 strlcpy(ifp->if_xname, devname, IFNAMSIZ); 757 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 758 ifp->if_ioctl = axen_ioctl; 759 ifp->if_start = axen_start; 760 ifp->if_init = axen_init; 761 ifp->if_stop = axen_stop; 762 ifp->if_watchdog = axen_watchdog; 763 764 IFQ_SET_READY(&ifp->if_snd); 765 766 sc->axen_ec.ec_capabilities = ETHERCAP_VLAN_MTU; 767 #ifdef AXEN_TOE 768 ifp->if_capabilities |= IFCAP_CSUM_IPv4_Rx | IFCAP_CSUM_IPv4_Tx | 769 IFCAP_CSUM_TCPv4_Rx | IFCAP_CSUM_TCPv4_Tx | 770 IFCAP_CSUM_UDPv4_Rx | IFCAP_CSUM_UDPv4_Tx | 771 IFCAP_CSUM_TCPv6_Rx | IFCAP_CSUM_TCPv6_Tx | 772 IFCAP_CSUM_UDPv6_Rx | IFCAP_CSUM_UDPv6_Tx; 773 #endif 774 775 /* Initialize MII/media info. */ 776 mii = &sc->axen_mii; 777 mii->mii_ifp = ifp; 778 mii->mii_readreg = axen_miibus_readreg; 779 mii->mii_writereg = axen_miibus_writereg; 780 mii->mii_statchg = axen_miibus_statchg; 781 mii->mii_flags = MIIF_AUTOTSLEEP; 782 783 sc->axen_ec.ec_mii = mii; 784 ifmedia_init(&mii->mii_media, 0, axen_ifmedia_upd, axen_ifmedia_sts); 785 mii_attach(self, mii, 0xffffffff, MII_PHY_ANY, MII_OFFSET_ANY, 0); 786 787 if (LIST_FIRST(&mii->mii_phys) == NULL) { 788 ifmedia_add(&mii->mii_media, IFM_ETHER | IFM_NONE, 0, NULL); 789 ifmedia_set(&mii->mii_media, IFM_ETHER | IFM_NONE); 790 } else 791 ifmedia_set(&mii->mii_media, IFM_ETHER | IFM_AUTO); 792 793 /* Attach the interface. */ 794 if_attach(ifp); 795 ether_ifattach(ifp, eaddr); 796 rnd_attach_source(&sc->rnd_source, device_xname(sc->axen_dev), 797 RND_TYPE_NET, RND_FLAG_DEFAULT); 798 799 callout_init(&sc->axen_stat_ch, 0); 800 callout_setfunc(&sc->axen_stat_ch, axen_tick, sc); 801 802 sc->axen_attached = true; 803 splx(s); 804 805 usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->axen_udev,sc->axen_dev); 806 } 807 808 static int 809 axen_detach(device_t self, int flags) 810 { 811 struct axen_softc *sc = device_private(self); 812 struct ifnet *ifp = GET_IFP(sc); 813 int s; 814 815 DPRINTFN(2,("%s: %s: enter\n", device_xname(sc->axen_dev), __func__)); 816 817 /* Detached before attached finished, so just bail out. */ 818 if (!sc->axen_attached) 819 return 0; 820 821 sc->axen_dying = true; 822 823 /* 824 * Remove any pending tasks. They cannot be executing because they run 825 * in the same thread as detach. 826 */ 827 usb_rem_task(sc->axen_udev, &sc->axen_tick_task); 828 829 s = splusb(); 830 831 if (ifp->if_flags & IFF_RUNNING) 832 axen_stop(ifp, 1); 833 834 callout_destroy(&sc->axen_stat_ch); 835 rnd_detach_source(&sc->rnd_source); 836 mii_detach(&sc->axen_mii, MII_PHY_ANY, MII_OFFSET_ANY); 837 ifmedia_delete_instance(&sc->axen_mii.mii_media, IFM_INST_ANY); 838 ether_ifdetach(ifp); 839 if_detach(ifp); 840 841 #ifdef DIAGNOSTIC 842 if (sc->axen_ep[AXEN_ENDPT_TX] != NULL || 843 sc->axen_ep[AXEN_ENDPT_RX] != NULL || 844 sc->axen_ep[AXEN_ENDPT_INTR] != NULL) 845 aprint_debug_dev(self, "detach has active endpoints\n"); 846 #endif 847 848 sc->axen_attached = false; 849 850 if (--sc->axen_refcnt >= 0) { 851 /* Wait for processes to go away. */ 852 usb_detach_waitold(sc->axen_dev); 853 } 854 splx(s); 855 856 usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->axen_udev,sc->axen_dev); 857 858 rw_destroy(&sc->axen_mii_lock); 859 860 return 0; 861 } 862 863 static int 864 axen_activate(device_t self, devact_t act) 865 { 866 struct axen_softc *sc = device_private(self); 867 struct ifnet *ifp = GET_IFP(sc); 868 869 DPRINTFN(2,("%s: %s: enter\n", device_xname(sc->axen_dev), __func__)); 870 871 switch (act) { 872 case DVACT_DEACTIVATE: 873 if_deactivate(ifp); 874 sc->axen_dying = true; 875 return 0; 876 default: 877 return EOPNOTSUPP; 878 } 879 } 880 881 static struct mbuf * 882 axen_newbuf(void) 883 { 884 struct mbuf *m; 885 886 MGETHDR(m, M_DONTWAIT, MT_DATA); 887 if (m == NULL) 888 return NULL; 889 890 MCLGET(m, M_DONTWAIT); 891 if (!(m->m_flags & M_EXT)) { 892 m_freem(m); 893 return NULL; 894 } 895 896 m->m_len = m->m_pkthdr.len = MCLBYTES; 897 m_adj(m, ETHER_ALIGN); 898 899 return m; 900 } 901 902 static int 903 axen_rx_list_init(struct axen_softc *sc) 904 { 905 struct axen_cdata *cd; 906 struct axen_chain *c; 907 int i; 908 909 DPRINTF(("%s: %s: enter\n", device_xname(sc->axen_dev), __func__)); 910 911 cd = &sc->axen_cdata; 912 for (i = 0; i < AXEN_RX_LIST_CNT; i++) { 913 c = &cd->axen_rx_chain[i]; 914 c->axen_sc = sc; 915 c->axen_idx = i; 916 if (c->axen_xfer == NULL) { 917 c->axen_xfer = usbd_alloc_xfer(sc->axen_udev); 918 if (c->axen_xfer == NULL) 919 return ENOBUFS; 920 c->axen_buf = usbd_alloc_buffer(c->axen_xfer, 921 sc->axen_bufsz); 922 if (c->axen_buf == NULL) { 923 usbd_free_xfer(c->axen_xfer); 924 return ENOBUFS; 925 } 926 } 927 } 928 929 return 0; 930 } 931 932 static int 933 axen_tx_list_init(struct axen_softc *sc) 934 { 935 struct axen_cdata *cd; 936 struct axen_chain *c; 937 int i; 938 939 DPRINTF(("%s: %s: enter\n", device_xname(sc->axen_dev), __func__)); 940 941 cd = &sc->axen_cdata; 942 for (i = 0; i < AXEN_TX_LIST_CNT; i++) { 943 c = &cd->axen_tx_chain[i]; 944 c->axen_sc = sc; 945 c->axen_idx = i; 946 if (c->axen_xfer == NULL) { 947 c->axen_xfer = usbd_alloc_xfer(sc->axen_udev); 948 if (c->axen_xfer == NULL) 949 return ENOBUFS; 950 c->axen_buf = usbd_alloc_buffer(c->axen_xfer, 951 sc->axen_bufsz); 952 if (c->axen_buf == NULL) { 953 usbd_free_xfer(c->axen_xfer); 954 return ENOBUFS; 955 } 956 } 957 } 958 959 return 0; 960 } 961 962 /* 963 * A frame has been uploaded: pass the resulting mbuf chain up to 964 * the higher level protocols. 965 */ 966 static void 967 axen_rxeof(struct usbd_xfer *xfer, void * priv, usbd_status status) 968 { 969 struct axen_chain *c = (struct axen_chain *)priv; 970 struct axen_softc *sc = c->axen_sc; 971 struct ifnet *ifp = GET_IFP(sc); 972 uint8_t *buf = c->axen_buf; 973 struct mbuf *m; 974 uint32_t total_len; 975 uint32_t rx_hdr, pkt_hdr; 976 uint32_t *hdr_p; 977 uint16_t hdr_offset, pkt_count; 978 size_t pkt_len; 979 size_t temp; 980 int s; 981 982 DPRINTFN(10,("%s: %s: enter\n", device_xname(sc->axen_dev), __func__)); 983 984 if (sc->axen_dying) 985 return; 986 987 if (!(ifp->if_flags & IFF_RUNNING)) 988 return; 989 990 if (status != USBD_NORMAL_COMPLETION) { 991 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) 992 return; 993 if (usbd_ratecheck(&sc->axen_rx_notice)) { 994 aprint_error_dev(sc->axen_dev, "usb errors on rx: %s\n", 995 usbd_errstr(status)); 996 } 997 if (status == USBD_STALLED) 998 usbd_clear_endpoint_stall_async(sc->axen_ep[AXEN_ENDPT_RX]); 999 goto done; 1000 } 1001 1002 usbd_get_xfer_status(xfer, NULL, NULL, &total_len, NULL); 1003 1004 if (total_len < sizeof(pkt_hdr)) { 1005 ifp->if_ierrors++; 1006 goto done; 1007 } 1008 1009 /* 1010 * buffer map 1011 * [packet #0]...[packet #n][pkt hdr#0]..[pkt hdr#n][recv_hdr] 1012 * each packet has 0xeeee as psuedo header.. 1013 */ 1014 hdr_p = (uint32_t *)(buf + total_len - sizeof(uint32_t)); 1015 rx_hdr = le32toh(*hdr_p); 1016 hdr_offset = (uint16_t)(rx_hdr >> 16); 1017 pkt_count = (uint16_t)(rx_hdr & 0xffff); 1018 1019 if (total_len > sc->axen_bufsz) { 1020 aprint_error_dev(sc->axen_dev, "rxeof: too large transfer\n"); 1021 goto done; 1022 } 1023 1024 /* sanity check */ 1025 if (hdr_offset > total_len) { 1026 ifp->if_ierrors++; 1027 usbd_delay_ms(sc->axen_udev, 100); 1028 goto done; 1029 } 1030 1031 /* point first packet header */ 1032 hdr_p = (uint32_t *)(buf + hdr_offset); 1033 1034 /* 1035 * ax88179 will pack multiple ip packet to a USB transaction. 1036 * process all of packets in the buffer 1037 */ 1038 1039 #if 1 /* XXX: paranoiac check. need to remove later */ 1040 #define AXEN_MAX_PACKED_PACKET 200 1041 if (pkt_count > AXEN_MAX_PACKED_PACKET) { 1042 DPRINTF(("%s: Too many packets (%d) in a transaction, discard.\n", 1043 device_xname(sc->axen_dev), pkt_count)); 1044 goto done; 1045 } 1046 #endif 1047 1048 do { 1049 if ((buf[0] != 0xee) || (buf[1] != 0xee)){ 1050 aprint_error_dev(sc->axen_dev, 1051 "invalid buffer(pkt#%d), continue\n", pkt_count); 1052 ifp->if_ierrors += pkt_count; 1053 goto done; 1054 } 1055 1056 pkt_hdr = le32toh(*hdr_p); 1057 pkt_len = (pkt_hdr >> 16) & 0x1fff; 1058 DPRINTFN(10, 1059 ("%s: rxeof: packet#%d, pkt_hdr 0x%08x, pkt_len %zu\n", 1060 device_xname(sc->axen_dev), pkt_count, pkt_hdr, pkt_len)); 1061 1062 if ((pkt_hdr & AXEN_RXHDR_CRC_ERR) || 1063 (pkt_hdr & AXEN_RXHDR_DROP_ERR)) { 1064 ifp->if_ierrors++; 1065 /* move to next pkt header */ 1066 DPRINTF(("%s: crc err (pkt#%d)\n", 1067 device_xname(sc->axen_dev), pkt_count)); 1068 goto nextpkt; 1069 } 1070 1071 /* process each packet */ 1072 /* allocate mbuf */ 1073 m = axen_newbuf(); 1074 if (m == NULL) { 1075 ifp->if_ierrors++; 1076 goto nextpkt; 1077 } 1078 1079 /* skip pseudo header (2byte) */ 1080 ifp->if_ipackets++; 1081 m->m_pkthdr.rcvif = ifp; 1082 m->m_pkthdr.len = m->m_len = pkt_len - 6; 1083 1084 #ifdef AXEN_TOE 1085 /* cheksum err */ 1086 if ((pkt_hdr & AXEN_RXHDR_L3CSUM_ERR) || 1087 (pkt_hdr & AXEN_RXHDR_L4CSUM_ERR)) { 1088 aprint_error_dev(sc->axen_dev, 1089 "checksum err (pkt#%d)\n", pkt_count); 1090 goto nextpkt; 1091 } else { 1092 m->m_pkthdr.csum_flags |= M_CSUM_IPv4; 1093 } 1094 1095 int l4_type = (pkt_hdr & AXEN_RXHDR_L4_TYPE_MASK) >> 1096 AXEN_RXHDR_L4_TYPE_OFFSET; 1097 1098 if ((l4_type == AXEN_RXHDR_L4_TYPE_TCP) || 1099 (l4_type == AXEN_RXHDR_L4_TYPE_UDP)) { 1100 m->m_pkthdr.csum_flags |= M_CSUM_TCPv4 | 1101 M_CSUM_UDPv4; /* XXX v6? */ 1102 } 1103 #endif 1104 1105 memcpy(mtod(m, char *), buf + 2, pkt_len - 6); 1106 1107 /* push the packet up */ 1108 s = splnet(); 1109 bpf_mtap(ifp, m); 1110 (*(ifp)->if_input)((ifp), (m)); 1111 splx(s); 1112 1113 nextpkt: 1114 /* 1115 * prepare next packet 1116 * as each packet will be aligned 8byte boundary, 1117 * need to fix up the start point of the buffer. 1118 */ 1119 temp = ((pkt_len + 7) & 0xfff8); 1120 buf = buf + temp; 1121 hdr_p++; 1122 pkt_count--; 1123 } while( pkt_count > 0); 1124 1125 done: 1126 /* clear buffer for next transaction */ 1127 memset(c->axen_buf, 0, sc->axen_bufsz); 1128 1129 /* Setup new transfer. */ 1130 usbd_setup_xfer(xfer, sc->axen_ep[AXEN_ENDPT_RX], 1131 c, c->axen_buf, sc->axen_bufsz, 1132 USBD_SHORT_XFER_OK, 1133 USBD_NO_TIMEOUT, axen_rxeof); 1134 usbd_transfer(xfer); 1135 1136 DPRINTFN(10,("%s: %s: start rx\n",device_xname(sc->axen_dev),__func__)); 1137 } 1138 1139 /* 1140 * A frame was downloaded to the chip. It's safe for us to clean up 1141 * the list buffers. 1142 */ 1143 static void 1144 axen_txeof(struct usbd_xfer *xfer, void * priv, usbd_status status) 1145 { 1146 struct axen_chain *c = (struct axen_chain *)priv; 1147 struct axen_softc *sc = c->axen_sc; 1148 struct ifnet *ifp = GET_IFP(sc); 1149 int s; 1150 1151 if (sc->axen_dying) 1152 return; 1153 1154 s = splnet(); 1155 1156 if (status != USBD_NORMAL_COMPLETION) { 1157 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) { 1158 splx(s); 1159 return; 1160 } 1161 ifp->if_oerrors++; 1162 aprint_error_dev(sc->axen_dev, "usb error on tx: %s\n", 1163 usbd_errstr(status)); 1164 if (status == USBD_STALLED) 1165 usbd_clear_endpoint_stall_async(sc->axen_ep[AXEN_ENDPT_TX]); 1166 splx(s); 1167 return; 1168 } 1169 1170 ifp->if_timer = 0; 1171 ifp->if_flags &= ~IFF_OACTIVE; 1172 1173 if (!IFQ_IS_EMPTY(&ifp->if_snd)) 1174 axen_start(ifp); 1175 1176 ifp->if_opackets++; 1177 splx(s); 1178 } 1179 1180 static void 1181 axen_tick(void *xsc) 1182 { 1183 struct axen_softc *sc = xsc; 1184 1185 if (sc == NULL) 1186 return; 1187 1188 DPRINTFN(0xff,("%s: %s: enter\n", device_xname(sc->axen_dev),__func__)); 1189 1190 if (sc->axen_dying) 1191 return; 1192 1193 /* Perform periodic stuff in process context */ 1194 usb_add_task(sc->axen_udev, &sc->axen_tick_task, USB_TASKQ_DRIVER); 1195 } 1196 1197 static void 1198 axen_tick_task(void *xsc) 1199 { 1200 int s; 1201 struct axen_softc *sc; 1202 struct ifnet *ifp; 1203 struct mii_data *mii; 1204 1205 sc = xsc; 1206 1207 if (sc == NULL) 1208 return; 1209 1210 if (sc->axen_dying) 1211 return; 1212 1213 ifp = GET_IFP(sc); 1214 mii = GET_MII(sc); 1215 if (mii == NULL) 1216 return; 1217 1218 s = splnet(); 1219 1220 mii_tick(mii); 1221 if (sc->axen_link == 0 && 1222 (mii->mii_media_status & IFM_ACTIVE) != 0 && 1223 IFM_SUBTYPE(mii->mii_media_active) != IFM_NONE) { 1224 DPRINTF(("%s: %s: got link\n", device_xname(sc->axen_dev), 1225 __func__)); 1226 sc->axen_link++; 1227 if (!IFQ_IS_EMPTY(&ifp->if_snd)) 1228 axen_start(ifp); 1229 } 1230 1231 callout_schedule(&sc->axen_stat_ch, hz); 1232 1233 splx(s); 1234 } 1235 1236 static int 1237 axen_encap(struct axen_softc *sc, struct mbuf *m, int idx) 1238 { 1239 struct ifnet *ifp = GET_IFP(sc); 1240 struct axen_chain *c; 1241 usbd_status err; 1242 struct axen_sframe_hdr hdr; 1243 int length, boundary; 1244 1245 c = &sc->axen_cdata.axen_tx_chain[idx]; 1246 1247 boundary = (sc->axen_udev->ud_speed == USB_SPEED_HIGH) ? 512 : 64; 1248 1249 hdr.plen = htole32(m->m_pkthdr.len); 1250 hdr.gso = 0; /* disable segmentation offloading */ 1251 1252 memcpy(c->axen_buf, &hdr, sizeof(hdr)); 1253 length = sizeof(hdr); 1254 1255 m_copydata(m, 0, m->m_pkthdr.len, c->axen_buf + length); 1256 length += m->m_pkthdr.len; 1257 1258 if ((length % boundary) == 0) { 1259 hdr.plen = 0x0; 1260 hdr.gso |= 0x80008000; /* enable padding */ 1261 memcpy(c->axen_buf + length, &hdr, sizeof(hdr)); 1262 length += sizeof(hdr); 1263 } 1264 1265 usbd_setup_xfer(c->axen_xfer, sc->axen_ep[AXEN_ENDPT_TX], 1266 c, c->axen_buf, length, USBD_FORCE_SHORT_XFER, 1267 10000, axen_txeof); 1268 1269 /* Transmit */ 1270 err = usbd_transfer(c->axen_xfer); 1271 if (err != USBD_IN_PROGRESS) { 1272 axen_stop(ifp, 0); 1273 return EIO; 1274 } 1275 1276 sc->axen_cdata.axen_tx_cnt++; 1277 1278 return 0; 1279 } 1280 1281 static void 1282 axen_start(struct ifnet *ifp) 1283 { 1284 struct axen_softc *sc; 1285 struct mbuf *m; 1286 1287 sc = ifp->if_softc; 1288 1289 if (sc->axen_link == 0) 1290 return; 1291 1292 if ((ifp->if_flags & (IFF_OACTIVE|IFF_RUNNING)) != IFF_RUNNING) 1293 return; 1294 1295 IFQ_POLL(&ifp->if_snd, m); 1296 if (m == NULL) 1297 return; 1298 1299 if (axen_encap(sc, m, 0)) { 1300 ifp->if_flags |= IFF_OACTIVE; 1301 return; 1302 } 1303 IFQ_DEQUEUE(&ifp->if_snd, m); 1304 1305 /* 1306 * If there's a BPF listener, bounce a copy of this frame 1307 * to him. 1308 */ 1309 bpf_mtap(ifp, m); 1310 m_freem(m); 1311 1312 ifp->if_flags |= IFF_OACTIVE; 1313 1314 /* 1315 * Set a timeout in case the chip goes out to lunch. 1316 */ 1317 ifp->if_timer = 5; 1318 } 1319 1320 static int 1321 axen_init(struct ifnet *ifp) 1322 { 1323 struct axen_softc *sc = ifp->if_softc; 1324 struct axen_chain *c; 1325 usbd_status err; 1326 int i, s; 1327 uint16_t rxmode; 1328 uint16_t wval; 1329 uint8_t bval; 1330 1331 s = splnet(); 1332 1333 if (ifp->if_flags & IFF_RUNNING) 1334 axen_stop(ifp, 0); 1335 1336 /* 1337 * Cancel pending I/O and free all RX/TX buffers. 1338 */ 1339 axen_reset(sc); 1340 1341 /* XXX: ? */ 1342 axen_lock_mii(sc); 1343 bval = 0x01; 1344 axen_cmd(sc, AXEN_CMD_MAC_WRITE, 1, AXEN_UNK_28, &bval); 1345 axen_unlock_mii(sc); 1346 1347 /* Init RX ring. */ 1348 if (axen_rx_list_init(sc) == ENOBUFS) { 1349 aprint_error_dev(sc->axen_dev, "rx list init failed\n"); 1350 axen_unlock_mii(sc); 1351 splx(s); 1352 return ENOBUFS; 1353 } 1354 1355 /* Init TX ring. */ 1356 if (axen_tx_list_init(sc) == ENOBUFS) { 1357 aprint_error_dev(sc->axen_dev, "tx list init failed\n"); 1358 axen_unlock_mii(sc); 1359 splx(s); 1360 return ENOBUFS; 1361 } 1362 1363 /* Program promiscuous mode and multicast filters. */ 1364 axen_iff(sc); 1365 1366 /* Enable receiver, set RX mode */ 1367 axen_lock_mii(sc); 1368 axen_cmd(sc, AXEN_CMD_MAC_READ2, 2, AXEN_MAC_RXCTL, &wval); 1369 rxmode = le16toh(wval); 1370 rxmode |= AXEN_RXCTL_START; 1371 wval = htole16(rxmode); 1372 axen_cmd(sc, AXEN_CMD_MAC_WRITE2, 2, AXEN_MAC_RXCTL, &wval); 1373 axen_unlock_mii(sc); 1374 1375 /* Open RX and TX pipes. */ 1376 err = usbd_open_pipe(sc->axen_iface, sc->axen_ed[AXEN_ENDPT_RX], 1377 USBD_EXCLUSIVE_USE, &sc->axen_ep[AXEN_ENDPT_RX]); 1378 if (err) { 1379 aprint_error_dev(sc->axen_dev, "open rx pipe failed: %s\n", 1380 usbd_errstr(err)); 1381 splx(s); 1382 return EIO; 1383 } 1384 1385 err = usbd_open_pipe(sc->axen_iface, sc->axen_ed[AXEN_ENDPT_TX], 1386 USBD_EXCLUSIVE_USE, &sc->axen_ep[AXEN_ENDPT_TX]); 1387 if (err) { 1388 aprint_error_dev(sc->axen_dev, "open tx pipe failed: %s\n", 1389 usbd_errstr(err)); 1390 splx(s); 1391 return EIO; 1392 } 1393 1394 /* Start up the receive pipe. */ 1395 for (i = 0; i < AXEN_RX_LIST_CNT; i++) { 1396 c = &sc->axen_cdata.axen_rx_chain[i]; 1397 usbd_setup_xfer(c->axen_xfer, sc->axen_ep[AXEN_ENDPT_RX], 1398 c, c->axen_buf, sc->axen_bufsz, 1399 USBD_SHORT_XFER_OK, 1400 USBD_NO_TIMEOUT, axen_rxeof); 1401 usbd_transfer(c->axen_xfer); 1402 } 1403 1404 ifp->if_flags |= IFF_RUNNING; 1405 ifp->if_flags &= ~IFF_OACTIVE; 1406 1407 splx(s); 1408 1409 callout_schedule(&sc->axen_stat_ch, hz); 1410 return 0; 1411 } 1412 1413 static int 1414 axen_ioctl(struct ifnet *ifp, u_long cmd, void *data) 1415 { 1416 struct axen_softc *sc = ifp->if_softc; 1417 int s; 1418 int error = 0; 1419 1420 s = splnet(); 1421 1422 switch (cmd) { 1423 case SIOCSIFFLAGS: 1424 if ((error = ifioctl_common(ifp, cmd, data)) != 0) 1425 break; 1426 1427 switch (ifp->if_flags & (IFF_UP | IFF_RUNNING)) { 1428 case IFF_RUNNING: 1429 axen_stop(ifp, 1); 1430 break; 1431 case IFF_UP: 1432 axen_init(ifp); 1433 break; 1434 case IFF_UP | IFF_RUNNING: 1435 if ((ifp->if_flags ^ sc->axen_if_flags) == IFF_PROMISC) 1436 axen_iff(sc); 1437 else 1438 axen_init(ifp); 1439 break; 1440 } 1441 sc->axen_if_flags = ifp->if_flags; 1442 break; 1443 1444 default: 1445 if ((error = ether_ioctl(ifp, cmd, data)) != ENETRESET) 1446 break; 1447 1448 error = 0; 1449 1450 if (cmd == SIOCADDMULTI || cmd == SIOCDELMULTI) 1451 axen_iff(sc); 1452 break; 1453 } 1454 splx(s); 1455 1456 return error; 1457 } 1458 1459 static void 1460 axen_watchdog(struct ifnet *ifp) 1461 { 1462 struct axen_softc *sc; 1463 struct axen_chain *c; 1464 usbd_status stat; 1465 int s; 1466 1467 sc = ifp->if_softc; 1468 1469 ifp->if_oerrors++; 1470 aprint_error_dev(sc->axen_dev, "watchdog timeout\n"); 1471 1472 s = splusb(); 1473 c = &sc->axen_cdata.axen_tx_chain[0]; 1474 usbd_get_xfer_status(c->axen_xfer, NULL, NULL, NULL, &stat); 1475 axen_txeof(c->axen_xfer, c, stat); 1476 1477 if (!IFQ_IS_EMPTY(&ifp->if_snd)) 1478 axen_start(ifp); 1479 splx(s); 1480 } 1481 1482 /* 1483 * Stop the adapter and free any mbufs allocated to the 1484 * RX and TX lists. 1485 */ 1486 static void 1487 axen_stop(struct ifnet *ifp, int disable) 1488 { 1489 struct axen_softc *sc = ifp->if_softc; 1490 usbd_status err; 1491 int i; 1492 1493 axen_reset(sc); 1494 1495 ifp->if_timer = 0; 1496 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); 1497 1498 callout_stop(&sc->axen_stat_ch); 1499 1500 /* Stop transfers. */ 1501 if (sc->axen_ep[AXEN_ENDPT_RX] != NULL) { 1502 err = usbd_abort_pipe(sc->axen_ep[AXEN_ENDPT_RX]); 1503 if (err) { 1504 aprint_error_dev(sc->axen_dev, 1505 "abort rx pipe failed: %s\n", usbd_errstr(err)); 1506 1507 } 1508 err = usbd_close_pipe(sc->axen_ep[AXEN_ENDPT_RX]); 1509 if (err) { 1510 aprint_error_dev(sc->axen_dev, 1511 "close rx pipe failed: %s\n", usbd_errstr(err)); 1512 } 1513 sc->axen_ep[AXEN_ENDPT_RX] = NULL; 1514 } 1515 1516 if (sc->axen_ep[AXEN_ENDPT_TX] != NULL) { 1517 err = usbd_abort_pipe(sc->axen_ep[AXEN_ENDPT_TX]); 1518 if (err) { 1519 aprint_error_dev(sc->axen_dev, 1520 "abort tx pipe failed: %s\n", usbd_errstr(err)); 1521 } 1522 err = usbd_close_pipe(sc->axen_ep[AXEN_ENDPT_TX]); 1523 if (err) { 1524 aprint_error_dev(sc->axen_dev, 1525 "close tx pipe failed: %s\n", usbd_errstr(err)); 1526 } 1527 sc->axen_ep[AXEN_ENDPT_TX] = NULL; 1528 } 1529 1530 if (sc->axen_ep[AXEN_ENDPT_INTR] != NULL) { 1531 err = usbd_abort_pipe(sc->axen_ep[AXEN_ENDPT_INTR]); 1532 if (err) { 1533 aprint_error_dev(sc->axen_dev, 1534 "abort intr pipe failed: %s\n", usbd_errstr(err)); 1535 } 1536 err = usbd_close_pipe(sc->axen_ep[AXEN_ENDPT_INTR]); 1537 if (err) { 1538 aprint_error_dev(sc->axen_dev, 1539 "close intr pipe failed: %s\n", usbd_errstr(err)); 1540 } 1541 sc->axen_ep[AXEN_ENDPT_INTR] = NULL; 1542 } 1543 1544 /* Free RX resources. */ 1545 for (i = 0; i < AXEN_RX_LIST_CNT; i++) { 1546 if (sc->axen_cdata.axen_rx_chain[i].axen_xfer != NULL) { 1547 usbd_free_xfer(sc->axen_cdata.axen_rx_chain[i].axen_xfer); 1548 sc->axen_cdata.axen_rx_chain[i].axen_xfer = NULL; 1549 } 1550 } 1551 1552 /* Free TX resources. */ 1553 for (i = 0; i < AXEN_TX_LIST_CNT; i++) { 1554 if (sc->axen_cdata.axen_tx_chain[i].axen_xfer != NULL) { 1555 usbd_free_xfer(sc->axen_cdata.axen_tx_chain[i].axen_xfer); 1556 sc->axen_cdata.axen_tx_chain[i].axen_xfer = NULL; 1557 } 1558 } 1559 1560 sc->axen_link = 0; 1561 } 1562 1563 MODULE(MODULE_CLASS_DRIVER, if_axen, "bpf"); 1564 1565 #ifdef _MODULE 1566 #include "ioconf.c" 1567 #endif 1568 1569 static int 1570 if_axen_modcmd(modcmd_t cmd, void *aux) 1571 { 1572 int error = 0; 1573 1574 switch (cmd) { 1575 case MODULE_CMD_INIT: 1576 #ifdef _MODULE 1577 error = config_init_component(cfdriver_ioconf_axen, 1578 cfattach_ioconf_axen, cfdata_ioconf_axen); 1579 #endif 1580 return error; 1581 case MODULE_CMD_FINI: 1582 #ifdef _MODULE 1583 error = config_fini_component(cfdriver_ioconf_axen, 1584 cfattach_ioconf_axen, cfdata_ioconf_axen); 1585 #endif 1586 return error; 1587 default: 1588 return ENOTTY; 1589 } 1590 } 1591
Indexes created Mon Oct 13 21:09:55 GMT 2025