if_axe.c revision 1.40
1 /* $NetBSD: if_axe.c,v 1.40 2010/08/14 08:10:49 tsutsui Exp $ */ 2 /* $OpenBSD: if_axe.c,v 1.96 2010/01/09 05:33:08 jsg Exp $ */ 3 4 /* 5 * Copyright (c) 2005, 2006, 2007 Jonathan Gray <jsg (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 * Copyright (c) 1997, 1998, 1999, 2000-2003 22 * Bill Paul <wpaul (at) windriver.com>. All rights reserved. 23 * 24 * Redistribution and use in source and binary forms, with or without 25 * modification, are permitted provided that the following conditions 26 * are met: 27 * 1. Redistributions of source code must retain the above copyright 28 * notice, this list of conditions and the following disclaimer. 29 * 2. Redistributions in binary form must reproduce the above copyright 30 * notice, this list of conditions and the following disclaimer in the 31 * documentation and/or other materials provided with the distribution. 32 * 3. All advertising materials mentioning features or use of this software 33 * must display the following acknowledgement: 34 * This product includes software developed by Bill Paul. 35 * 4. Neither the name of the author nor the names of any co-contributors 36 * may be used to endorse or promote products derived from this software 37 * without specific prior written permission. 38 * 39 * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND 40 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 41 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 42 * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD 43 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 44 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 45 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 46 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 47 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 48 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 49 * THE POSSIBILITY OF SUCH DAMAGE. 50 */ 51 52 /* 53 * ASIX Electronics AX88172 USB 2.0 ethernet driver. Used in the 54 * LinkSys USB200M and various other adapters. 55 * 56 * Manuals available from: 57 * http://www.asix.com.tw/datasheet/mac/Ax88172.PDF 58 * Note: you need the manual for the AX88170 chip (USB 1.x ethernet 59 * controller) to find the definitions for the RX control register. 60 * http://www.asix.com.tw/datasheet/mac/Ax88170.PDF 61 * 62 * Written by Bill Paul <wpaul (at) windriver.com> 63 * Senior Engineer 64 * Wind River Systems 65 */ 66 67 /* 68 * The AX88172 provides USB ethernet supports at 10 and 100Mbps. 69 * It uses an external PHY (reference designs use a RealTek chip), 70 * and has a 64-bit multicast hash filter. There is some information 71 * missing from the manual which one needs to know in order to make 72 * the chip function: 73 * 74 * - You must set bit 7 in the RX control register, otherwise the 75 * chip won't receive any packets. 76 * - You must initialize all 3 IPG registers, or you won't be able 77 * to send any packets. 78 * 79 * Note that this device appears to only support loading the station 80 * address via autload from the EEPROM (i.e. there's no way to manaully 81 * set it). 82 * 83 * (Adam Weinberger wanted me to name this driver if_gir.c.) 84 */ 85 86 /* 87 * Ported to OpenBSD 3/28/2004 by Greg Taleck <taleck (at) oz.net> 88 * with bits and pieces from the aue and url drivers. 89 */ 90 91 #include <sys/cdefs.h> 92 __KERNEL_RCSID(0, "$NetBSD: if_axe.c,v 1.40 2010/08/14 08:10:49 tsutsui Exp $"); 93 94 #if defined(__NetBSD__) 95 #include "opt_inet.h" 96 #include "rnd.h" 97 #endif 98 99 100 #include <sys/param.h> 101 #include <sys/bus.h> 102 #include <sys/device.h> 103 #include <sys/kernel.h> 104 #include <sys/mbuf.h> 105 #include <sys/mutex.h> 106 #include <sys/socket.h> 107 #include <sys/sockio.h> 108 #include <sys/systm.h> 109 110 #if NRND > 0 111 #include <sys/rnd.h> 112 #endif 113 114 #include <net/if.h> 115 #include <net/if_dl.h> 116 #include <net/if_ether.h> 117 #include <net/if_media.h> 118 119 #include <net/bpf.h> 120 121 #include <dev/mii/mii.h> 122 #include <dev/mii/miivar.h> 123 124 #include <dev/usb/usb.h> 125 #include <dev/usb/usbdi.h> 126 #include <dev/usb/usbdi_util.h> 127 #include <dev/usb/usbdivar.h> 128 #include <dev/usb/usbdevs.h> 129 130 #include <dev/usb/if_axereg.h> 131 132 #ifdef AXE_DEBUG 133 #define DPRINTF(x) do { if (axedebug) logprintf x; } while (0) 134 #define DPRINTFN(n,x) do { if (axedebug >= (n)) logprintf x; } while (0) 135 int axedebug = 0; 136 #else 137 #define DPRINTF(x) 138 #define DPRINTFN(n,x) 139 #endif 140 141 /* 142 * Various supported device vendors/products. 143 */ 144 static const struct axe_type axe_devs[] = { 145 { { USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_UFE2000}, 0 }, 146 { { USB_VENDOR_ACERCM, USB_PRODUCT_ACERCM_EP1427X2}, 0 }, 147 { { USB_VENDOR_APPLE, USB_PRODUCT_APPLE_ETHERNET }, AX772 }, 148 { { USB_VENDOR_ASIX, USB_PRODUCT_ASIX_AX88172}, 0 }, 149 { { USB_VENDOR_ASIX, USB_PRODUCT_ASIX_AX88772}, AX772 }, 150 { { USB_VENDOR_ASIX, USB_PRODUCT_ASIX_AX88772A}, AX772 }, 151 { { USB_VENDOR_ASIX, USB_PRODUCT_ASIX_AX88178}, AX178 }, 152 { { USB_VENDOR_ATEN, USB_PRODUCT_ATEN_UC210T}, 0 }, 153 { { USB_VENDOR_BELKIN, USB_PRODUCT_BELKIN_F5D5055 }, AX178 }, 154 { { USB_VENDOR_BILLIONTON, USB_PRODUCT_BILLIONTON_USB2AR}, 0}, 155 { { USB_VENDOR_CISCOLINKSYS, USB_PRODUCT_CISCOLINKSYS_USB200MV2}, AX772 }, 156 { { USB_VENDOR_COREGA, USB_PRODUCT_COREGA_FETHER_USB2_TX }, 0}, 157 { { USB_VENDOR_DLINK, USB_PRODUCT_DLINK_DUBE100}, 0 }, 158 { { USB_VENDOR_DLINK, USB_PRODUCT_DLINK_DUBE100B1 }, AX772 }, 159 { { USB_VENDOR_GOODWAY, USB_PRODUCT_GOODWAY_GWUSB2E}, 0 }, 160 { { USB_VENDOR_IODATA, USB_PRODUCT_IODATA_ETGUS2 }, AX178 }, 161 { { USB_VENDOR_JVC, USB_PRODUCT_JVC_MP_PRX1}, 0 }, 162 { { USB_VENDOR_LINKSYS2, USB_PRODUCT_LINKSYS2_USB200M}, 0 }, 163 { { USB_VENDOR_LINKSYS4, USB_PRODUCT_LINKSYS4_USB1000 }, AX178 }, 164 { { USB_VENDOR_LOGITEC, USB_PRODUCT_LOGITEC_LAN_GTJU2}, AX178 }, 165 { { USB_VENDOR_MELCO, USB_PRODUCT_MELCO_LUAU2GT}, AX178 }, 166 { { USB_VENDOR_MELCO, USB_PRODUCT_MELCO_LUAU2KTX}, 0 }, 167 { { USB_VENDOR_MSI, USB_PRODUCT_MSI_AX88772A}, AX772 }, 168 { { USB_VENDOR_NETGEAR, USB_PRODUCT_NETGEAR_FA120}, 0 }, 169 { { USB_VENDOR_OQO, USB_PRODUCT_OQO_ETHER01PLUS }, AX772 }, 170 { { USB_VENDOR_PLANEX3, USB_PRODUCT_PLANEX3_GU1000T }, AX178 }, 171 { { USB_VENDOR_SYSTEMTALKS, USB_PRODUCT_SYSTEMTALKS_SGCX2UL}, 0 }, 172 { { USB_VENDOR_SITECOM, USB_PRODUCT_SITECOM_LN029}, 0 }, 173 { { USB_VENDOR_SITECOMEU, USB_PRODUCT_SITECOMEU_LN028 }, AX178 } 174 }; 175 #define axe_lookup(v, p) ((const struct axe_type *)usb_lookup(axe_devs, v, p)) 176 177 int axe_match(device_t, cfdata_t, void *); 178 void axe_attach(device_t, device_t, void *); 179 int axe_detach(device_t, int); 180 int axe_activate(device_t, devact_t); 181 182 CFATTACH_DECL_NEW(axe, sizeof(struct axe_softc), 183 axe_match, axe_attach, axe_detach, axe_activate); 184 185 static int axe_tx_list_init(struct axe_softc *); 186 static int axe_rx_list_init(struct axe_softc *); 187 static int axe_newbuf(struct axe_softc *, struct axe_chain *, 188 struct mbuf *); 189 static int axe_encap(struct axe_softc *, struct mbuf *, int); 190 static void axe_rxeof(usbd_xfer_handle, usbd_private_handle, usbd_status); 191 static void axe_txeof(usbd_xfer_handle, usbd_private_handle, usbd_status); 192 static void axe_tick(void *); 193 static void axe_tick_task(void *); 194 static void axe_start(struct ifnet *); 195 static int axe_ioctl(struct ifnet *, u_long, void *); 196 static int axe_init(struct ifnet *); 197 static void axe_stop(struct ifnet *, int); 198 static void axe_watchdog(struct ifnet *); 199 static int axe_miibus_readreg(device_t, int, int); 200 static void axe_miibus_writereg(device_t, int, int, int); 201 static void axe_miibus_statchg(device_t); 202 static int axe_cmd(struct axe_softc *, int, int, int, void *); 203 static void axe_reset(struct axe_softc *sc); 204 static int axe_ifmedia_upd(struct ifnet *); 205 static void axe_ifmedia_sts(struct ifnet *, struct ifmediareq *); 206 207 static void axe_setmulti(struct axe_softc *); 208 static void axe_lock_mii(struct axe_softc *sc); 209 static void axe_unlock_mii(struct axe_softc *sc); 210 211 static void axe_ax88178_init(struct axe_softc *); 212 static void axe_ax88772_init(struct axe_softc *); 213 214 /* Get exclusive access to the MII registers */ 215 static void 216 axe_lock_mii(struct axe_softc *sc) 217 { 218 219 sc->axe_refcnt++; 220 mutex_enter(&sc->axe_mii_lock); 221 } 222 223 static void 224 axe_unlock_mii(struct axe_softc *sc) 225 { 226 227 mutex_exit(&sc->axe_mii_lock); 228 if (--sc->axe_refcnt < 0) 229 usb_detach_wakeup((sc->axe_dev)); 230 } 231 232 static int 233 axe_cmd(struct axe_softc *sc, int cmd, int index, int val, void *buf) 234 { 235 usb_device_request_t req; 236 usbd_status err; 237 238 KASSERT(mutex_owned(&sc->axe_mii_lock)); 239 240 if (sc->axe_dying) 241 return 0; 242 243 if (AXE_CMD_DIR(cmd)) 244 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 245 else 246 req.bmRequestType = UT_READ_VENDOR_DEVICE; 247 req.bRequest = AXE_CMD_CMD(cmd); 248 USETW(req.wValue, val); 249 USETW(req.wIndex, index); 250 USETW(req.wLength, AXE_CMD_LEN(cmd)); 251 252 err = usbd_do_request(sc->axe_udev, &req, buf); 253 254 if (err) { 255 DPRINTF(("axe_cmd err: cmd %d err %d\n", cmd, err)); 256 return -1; 257 } 258 return 0; 259 } 260 261 static int 262 axe_miibus_readreg(device_t dev, int phy, int reg) 263 { 264 struct axe_softc *sc = device_private(dev); 265 usbd_status err; 266 uint16_t val; 267 268 if (sc->axe_dying) { 269 DPRINTF(("axe: dying\n")); 270 return 0; 271 } 272 273 /* 274 * The chip tells us the MII address of any supported 275 * PHYs attached to the chip, so only read from those. 276 * 277 * But if the chip lies about its PHYs, read from any. 278 */ 279 val = 0; 280 281 if ((phy == sc->axe_phyaddrs[0]) || (phy == sc->axe_phyaddrs[1]) || 282 (sc->axe_flags & AXE_ANY_PHY)) { 283 axe_lock_mii(sc); 284 axe_cmd(sc, AXE_CMD_MII_OPMODE_SW, 0, 0, NULL); 285 err = axe_cmd(sc, AXE_CMD_MII_READ_REG, reg, phy, (void *)&val); 286 axe_cmd(sc, AXE_CMD_MII_OPMODE_HW, 0, 0, NULL); 287 axe_unlock_mii(sc); 288 289 if (err) { 290 aprint_error_dev(sc->axe_dev, "read PHY failed\n"); 291 return -1; 292 } 293 DPRINTF(("axe_miibus_readreg: phy 0x%x reg 0x%x val 0x%x\n", 294 phy, reg, val)); 295 296 if (val && val != 0xffff) 297 sc->axe_phyaddrs[0] = phy; 298 } else { 299 DPRINTF(("axe_miibus_readreg: ignore read from phy 0x%x\n", 300 phy)); 301 } 302 return le16toh(val); 303 } 304 305 static void 306 axe_miibus_writereg(device_t dev, int phy, int reg, int aval) 307 { 308 struct axe_softc *sc = device_private(dev); 309 usbd_status err; 310 uint16_t val; 311 312 if (sc->axe_dying) 313 return; 314 315 val = htole16(aval); 316 axe_lock_mii(sc); 317 axe_cmd(sc, AXE_CMD_MII_OPMODE_SW, 0, 0, NULL); 318 err = axe_cmd(sc, AXE_CMD_MII_WRITE_REG, reg, phy, (void *)&val); 319 axe_cmd(sc, AXE_CMD_MII_OPMODE_HW, 0, 0, NULL); 320 axe_unlock_mii(sc); 321 322 if (err) { 323 aprint_error_dev(sc->axe_dev, "write PHY failed\n"); 324 return; 325 } 326 } 327 328 static void 329 axe_miibus_statchg(device_t dev) 330 { 331 struct axe_softc *sc = device_private(dev); 332 struct mii_data *mii = &sc->axe_mii; 333 int val, err; 334 335 if ((mii->mii_media_active & IFM_GMASK) == IFM_FDX) 336 val = AXE_MEDIA_FULL_DUPLEX; 337 else 338 val = 0; 339 340 if (sc->axe_flags & AX178 || sc->axe_flags & AX772) { 341 val |= (AXE_178_MEDIA_RX_EN | AXE_178_MEDIA_MAGIC); 342 343 switch (IFM_SUBTYPE(mii->mii_media_active)) { 344 case IFM_1000_T: 345 val |= AXE_178_MEDIA_GMII | AXE_178_MEDIA_ENCK; 346 break; 347 case IFM_100_TX: 348 val |= AXE_178_MEDIA_100TX; 349 break; 350 case IFM_10_T: 351 /* doesn't need to be handled */ 352 break; 353 } 354 } 355 356 DPRINTF(("axe_miibus_statchg: val=0x%x\n", val)); 357 axe_lock_mii(sc); 358 err = axe_cmd(sc, AXE_CMD_WRITE_MEDIA, 0, val, NULL); 359 axe_unlock_mii(sc); 360 if (err) { 361 aprint_error_dev(sc->axe_dev, "media change failed\n"); 362 return; 363 } 364 } 365 366 /* 367 * Set media options 368 */ 369 static int 370 axe_ifmedia_upd(struct ifnet *ifp) 371 { 372 struct axe_softc *sc = ifp->if_softc; 373 struct mii_data *mii = &sc->axe_mii; 374 int rc; 375 376 sc->axe_link = 0; 377 378 if (mii->mii_instance) { 379 struct mii_softc *miisc; 380 381 LIST_FOREACH(miisc, &mii->mii_phys, mii_list) 382 mii_phy_reset(miisc); 383 } 384 385 if ((rc = mii_mediachg(mii)) == ENXIO) 386 return 0; 387 return rc; 388 } 389 390 /* 391 * Report current media status 392 */ 393 static void 394 axe_ifmedia_sts(struct ifnet *ifp, struct ifmediareq *ifmr) 395 { 396 struct axe_softc *sc = ifp->if_softc; 397 struct mii_data *mii = &sc->axe_mii; 398 399 mii_pollstat(mii); 400 ifmr->ifm_active = mii->mii_media_active; 401 ifmr->ifm_status = mii->mii_media_status; 402 } 403 404 static void 405 axe_setmulti(struct axe_softc *sc) 406 { 407 struct ifnet *ifp = &sc->sc_if; 408 struct ether_multi *enm; 409 struct ether_multistep step; 410 uint32_t h = 0; 411 uint16_t rxmode; 412 uint8_t hashtbl[8] = { 0, 0, 0, 0, 0, 0, 0, 0 }; 413 414 if (sc->axe_dying) 415 return; 416 417 axe_lock_mii(sc); 418 axe_cmd(sc, AXE_CMD_RXCTL_READ, 0, 0, (void *)&rxmode); 419 rxmode = le16toh(rxmode); 420 421 rxmode &= ~(AXE_RXCMD_ALLMULTI | AXE_RXCMD_PROMISC); 422 423 /* If we want promiscuous mode, set the allframes bit */ 424 if (ifp->if_flags & IFF_PROMISC) { 425 rxmode |= AXE_RXCMD_PROMISC; 426 goto allmulti; 427 } 428 429 /* Now program new ones */ 430 ETHER_FIRST_MULTI(step, &sc->axe_ec, enm); 431 while (enm != NULL) { 432 if (memcmp(enm->enm_addrlo, enm->enm_addrhi, 433 ETHER_ADDR_LEN) != 0) 434 goto allmulti; 435 436 h = ether_crc32_be(enm->enm_addrlo, ETHER_ADDR_LEN) >> 26; 437 hashtbl[h >> 3] |= 1U << (h & 7); 438 ETHER_NEXT_MULTI(step, enm); 439 } 440 ifp->if_flags &= ~IFF_ALLMULTI; 441 axe_cmd(sc, AXE_CMD_WRITE_MCAST, 0, 0, (void *)&hashtbl); 442 axe_cmd(sc, AXE_CMD_RXCTL_WRITE, 0, rxmode, NULL); 443 axe_unlock_mii(sc); 444 return; 445 446 allmulti: 447 ifp->if_flags |= IFF_ALLMULTI; 448 rxmode |= AXE_RXCMD_ALLMULTI; 449 axe_cmd(sc, AXE_CMD_RXCTL_WRITE, 0, rxmode, NULL); 450 axe_unlock_mii(sc); 451 } 452 453 static void 454 axe_reset(struct axe_softc *sc) 455 { 456 457 if (sc->axe_dying) 458 return; 459 /* XXX What to reset? */ 460 461 /* Wait a little while for the chip to get its brains in order. */ 462 DELAY(1000); 463 } 464 465 static void 466 axe_ax88178_init(struct axe_softc *sc) 467 { 468 int gpio0 = 0, phymode = 0; 469 uint16_t eeprom; 470 471 axe_cmd(sc, AXE_CMD_SROM_WR_ENABLE, 0, 0, NULL); 472 /* XXX magic */ 473 axe_cmd(sc, AXE_CMD_SROM_READ, 0, 0x0017, &eeprom); 474 axe_cmd(sc, AXE_CMD_SROM_WR_DISABLE, 0, 0, NULL); 475 476 eeprom = le16toh(eeprom); 477 478 DPRINTF((" EEPROM is 0x%x\n", eeprom)); 479 480 /* if EEPROM is invalid we have to use to GPIO0 */ 481 if (eeprom == 0xffff) { 482 phymode = 0; 483 gpio0 = 1; 484 } else { 485 phymode = eeprom & 7; 486 gpio0 = (eeprom & 0x80) ? 0 : 1; 487 } 488 489 DPRINTF(("use gpio0: %d, phymode %d\n", gpio0, phymode)); 490 491 axe_cmd(sc, AXE_CMD_WRITE_GPIO, 0, 0x008c, NULL); 492 usbd_delay_ms(sc->axe_udev, 40); 493 if ((eeprom >> 8) != 1) { 494 axe_cmd(sc, AXE_CMD_WRITE_GPIO, 0, 0x003c, NULL); 495 usbd_delay_ms(sc->axe_udev, 30); 496 497 axe_cmd(sc, AXE_CMD_WRITE_GPIO, 0, 0x001c, NULL); 498 usbd_delay_ms(sc->axe_udev, 300); 499 500 axe_cmd(sc, AXE_CMD_WRITE_GPIO, 0, 0x003c, NULL); 501 usbd_delay_ms(sc->axe_udev, 30); 502 } else { 503 DPRINTF(("axe gpio phymode == 1 path\n")); 504 axe_cmd(sc, AXE_CMD_WRITE_GPIO, 0, 0x0004, NULL); 505 usbd_delay_ms(sc->axe_udev, 30); 506 axe_cmd(sc, AXE_CMD_WRITE_GPIO, 0, 0x000c, NULL); 507 usbd_delay_ms(sc->axe_udev, 30); 508 } 509 510 /* soft reset */ 511 axe_cmd(sc, AXE_CMD_SW_RESET_REG, 0, AXE_SW_RESET_CLEAR, NULL); 512 usbd_delay_ms(sc->axe_udev, 150); 513 axe_cmd(sc, AXE_CMD_SW_RESET_REG, 0, 514 AXE_SW_RESET_PRL | AXE_178_RESET_MAGIC, NULL); 515 usbd_delay_ms(sc->axe_udev, 150); 516 /* Enable MII/GMII/RGMII for external PHY */ 517 axe_cmd(sc, AXE_CMD_SW_PHY_SELECT, 0, 0, NULL); 518 usbd_delay_ms(sc->axe_udev, 10); 519 axe_cmd(sc, AXE_CMD_RXCTL_WRITE, 0, 0, NULL); 520 } 521 522 static void 523 axe_ax88772_init(struct axe_softc *sc) 524 { 525 526 axe_cmd(sc, AXE_CMD_WRITE_GPIO, 0, 0x00b0, NULL); 527 usbd_delay_ms(sc->axe_udev, 40); 528 529 if (sc->axe_phyaddrs[1] == AXE_INTPHY) { 530 /* ask for the embedded PHY */ 531 axe_cmd(sc, AXE_CMD_SW_PHY_SELECT, 0, 0x01, NULL); 532 usbd_delay_ms(sc->axe_udev, 10); 533 534 /* power down and reset state, pin reset state */ 535 axe_cmd(sc, AXE_CMD_SW_RESET_REG, 0, AXE_SW_RESET_CLEAR, NULL); 536 usbd_delay_ms(sc->axe_udev, 60); 537 538 /* power down/reset state, pin operating state */ 539 axe_cmd(sc, AXE_CMD_SW_RESET_REG, 0, 540 AXE_SW_RESET_IPPD | AXE_SW_RESET_PRL, NULL); 541 usbd_delay_ms(sc->axe_udev, 150); 542 543 /* power up, reset */ 544 axe_cmd(sc, AXE_CMD_SW_RESET_REG, 0, AXE_SW_RESET_PRL, NULL); 545 546 /* power up, operating */ 547 axe_cmd(sc, AXE_CMD_SW_RESET_REG, 0, 548 AXE_SW_RESET_IPRL | AXE_SW_RESET_PRL, NULL); 549 } else { 550 /* ask for external PHY */ 551 axe_cmd(sc, AXE_CMD_SW_PHY_SELECT, 0, 0x00, NULL); 552 usbd_delay_ms(sc->axe_udev, 10); 553 554 /* power down internal PHY */ 555 axe_cmd(sc, AXE_CMD_SW_RESET_REG, 0, 556 AXE_SW_RESET_IPPD | AXE_SW_RESET_PRL, NULL); 557 } 558 559 usbd_delay_ms(sc->axe_udev, 150); 560 axe_cmd(sc, AXE_CMD_RXCTL_WRITE, 0, 0, NULL); 561 } 562 563 /* 564 * Probe for a AX88172 chip. 565 */ 566 int 567 axe_match(device_t parent, cfdata_t match, void *aux) 568 { 569 struct usb_attach_arg *uaa = aux; 570 571 return axe_lookup(uaa->vendor, uaa->product) != NULL ? 572 UMATCH_VENDOR_PRODUCT : UMATCH_NONE; 573 } 574 575 /* 576 * Attach the interface. Allocate softc structures, do ifmedia 577 * setup and ethernet/BPF attach. 578 */ 579 void 580 axe_attach(device_t parent, device_t self, void *aux) 581 { 582 struct axe_softc *sc = device_private(self); 583 struct usb_attach_arg *uaa = aux; 584 usbd_device_handle dev = uaa->device; 585 usbd_status err; 586 usb_interface_descriptor_t *id; 587 usb_endpoint_descriptor_t *ed; 588 struct mii_data *mii; 589 uint8_t eaddr[ETHER_ADDR_LEN]; 590 char *devinfop; 591 const char *devname = device_xname(self); 592 struct ifnet *ifp; 593 int i, s; 594 595 aprint_naive("\n"); 596 aprint_normal("\n"); 597 598 sc->axe_dev = self; 599 sc->axe_udev = dev; 600 601 devinfop = usbd_devinfo_alloc(dev, 0); 602 aprint_normal_dev(self, "%s\n", devinfop); 603 usbd_devinfo_free(devinfop); 604 605 err = usbd_set_config_no(dev, AXE_CONFIG_NO, 1); 606 if (err) { 607 aprint_error_dev(self, "getting interface handle failed\n"); 608 return; 609 } 610 611 sc->axe_flags = axe_lookup(uaa->vendor, uaa->product)->axe_flags; 612 613 mutex_init(&sc->axe_mii_lock, MUTEX_DEFAULT, IPL_NONE); 614 usb_init_task(&sc->axe_tick_task, axe_tick_task, sc); 615 616 err = usbd_device2interface_handle(dev, AXE_IFACE_IDX, &sc->axe_iface); 617 if (err) { 618 aprint_error_dev(self, "getting interface handle failed\n"); 619 return; 620 } 621 622 sc->axe_product = uaa->product; 623 sc->axe_vendor = uaa->vendor; 624 625 id = usbd_get_interface_descriptor(sc->axe_iface); 626 627 /* decide on what our bufsize will be */ 628 if (sc->axe_flags & AX178 || sc->axe_flags & AX772) 629 sc->axe_bufsz = (sc->axe_udev->speed == USB_SPEED_HIGH) ? 630 AXE_178_MAX_BUFSZ : AXE_178_MIN_BUFSZ; 631 else 632 sc->axe_bufsz = AXE_172_BUFSZ; 633 634 /* Find endpoints. */ 635 for (i = 0; i < id->bNumEndpoints; i++) { 636 ed = usbd_interface2endpoint_descriptor(sc->axe_iface, i); 637 if (ed == NULL) { 638 aprint_error_dev(self, "couldn't get ep %d\n", i); 639 return; 640 } 641 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 642 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { 643 sc->axe_ed[AXE_ENDPT_RX] = ed->bEndpointAddress; 644 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT && 645 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { 646 sc->axe_ed[AXE_ENDPT_TX] = ed->bEndpointAddress; 647 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 648 UE_GET_XFERTYPE(ed->bmAttributes) == UE_INTERRUPT) { 649 sc->axe_ed[AXE_ENDPT_INTR] = ed->bEndpointAddress; 650 } 651 } 652 653 s = splnet(); 654 655 /* We need the PHYID for init dance in some cases */ 656 axe_lock_mii(sc); 657 axe_cmd(sc, AXE_CMD_READ_PHYID, 0, 0, (void *)&sc->axe_phyaddrs); 658 659 DPRINTF((" phyaddrs[0]: %x phyaddrs[1]: %x\n", 660 sc->axe_phyaddrs[0], sc->axe_phyaddrs[1])); 661 662 if (sc->axe_flags & AX178) 663 axe_ax88178_init(sc); 664 else if (sc->axe_flags & AX772) 665 axe_ax88772_init(sc); 666 667 /* 668 * Get station address. 669 */ 670 if (sc->axe_flags & AX178 || sc->axe_flags & AX772) 671 axe_cmd(sc, AXE_178_CMD_READ_NODEID, 0, 0, &eaddr); 672 else 673 axe_cmd(sc, AXE_172_CMD_READ_NODEID, 0, 0, &eaddr); 674 675 /* 676 * Load IPG values 677 */ 678 axe_cmd(sc, AXE_CMD_READ_IPG012, 0, 0, (void *)&sc->axe_ipgs); 679 axe_unlock_mii(sc); 680 681 /* 682 * An ASIX chip was detected. Inform the world. 683 */ 684 aprint_normal_dev(self, "Ethernet address %s\n", ether_sprintf(eaddr)); 685 686 /* Initialize interface info.*/ 687 ifp = &sc->sc_if; 688 ifp->if_softc = sc; 689 strncpy(ifp->if_xname, devname, IFNAMSIZ); 690 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 691 ifp->if_ioctl = axe_ioctl; 692 ifp->if_start = axe_start; 693 ifp->if_init = axe_init; 694 ifp->if_stop = axe_stop; 695 ifp->if_watchdog = axe_watchdog; 696 697 IFQ_SET_READY(&ifp->if_snd); 698 699 sc->axe_ec.ec_capabilities = ETHERCAP_VLAN_MTU; 700 701 /* Initialize MII/media info. */ 702 mii = &sc->axe_mii; 703 mii->mii_ifp = ifp; 704 mii->mii_readreg = axe_miibus_readreg; 705 mii->mii_writereg = axe_miibus_writereg; 706 mii->mii_statchg = axe_miibus_statchg; 707 mii->mii_flags = MIIF_AUTOTSLEEP; 708 709 sc->axe_ec.ec_mii = mii; 710 if (sc->axe_flags & AXE_MII) 711 ifmedia_init(&mii->mii_media, 0, axe_ifmedia_upd, 712 axe_ifmedia_sts); 713 else 714 ifmedia_init(&mii->mii_media, 0, ether_mediachange, 715 ether_mediastatus); 716 717 mii_attach(sc->axe_dev, mii, 0xffffffff, MII_PHY_ANY, MII_OFFSET_ANY, 718 0); 719 720 if (LIST_EMPTY(&mii->mii_phys)) { 721 ifmedia_add(&mii->mii_media, IFM_ETHER | IFM_NONE, 0, NULL); 722 ifmedia_set(&mii->mii_media, IFM_ETHER | IFM_NONE); 723 } else 724 ifmedia_set(&mii->mii_media, IFM_ETHER | IFM_AUTO); 725 726 /* Attach the interface. */ 727 if_attach(ifp); 728 ether_ifattach(ifp, eaddr); 729 #if NRND > 0 730 rnd_attach_source(&sc->rnd_source, device_xname(sc->axe_dev), 731 RND_TYPE_NET, 0); 732 #endif 733 734 callout_init(&sc->axe_stat_ch, 0); 735 callout_setfunc(&sc->axe_stat_ch, axe_tick, sc); 736 737 sc->axe_attached = 1; 738 splx(s); 739 740 usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->axe_udev, sc->axe_dev); 741 } 742 743 int 744 axe_detach(device_t self, int flags) 745 { 746 struct axe_softc *sc = device_private(self); 747 int s; 748 struct ifnet *ifp = &sc->sc_if; 749 750 DPRINTFN(2,("%s: %s: enter\n", USBDEVNAME(sc->axe_dev), __func__)); 751 752 /* Detached before attached finished, so just bail out. */ 753 if (!sc->axe_attached) 754 return 0; 755 756 sc->axe_dying = 1; 757 758 /* 759 * Remove any pending tasks. They cannot be executing because they run 760 * in the same thread as detach. 761 */ 762 usb_rem_task(sc->axe_udev, &sc->axe_tick_task); 763 764 s = splusb(); 765 766 if (ifp->if_flags & IFF_RUNNING) 767 axe_stop(ifp, 1); 768 769 callout_destroy(&sc->axe_stat_ch); 770 mutex_destroy(&sc->axe_mii_lock); 771 #if NRND > 0 772 rnd_detach_source(&sc->rnd_source); 773 #endif 774 mii_detach(&sc->axe_mii, MII_PHY_ANY, MII_OFFSET_ANY); 775 ifmedia_delete_instance(&sc->axe_mii.mii_media, IFM_INST_ANY); 776 ether_ifdetach(ifp); 777 if_detach(ifp); 778 779 #ifdef DIAGNOSTIC 780 if (sc->axe_ep[AXE_ENDPT_TX] != NULL || 781 sc->axe_ep[AXE_ENDPT_RX] != NULL || 782 sc->axe_ep[AXE_ENDPT_INTR] != NULL) 783 aprint_debug_dev(self, "detach has active endpoints\n"); 784 #endif 785 786 sc->axe_attached = 0; 787 788 if (--sc->axe_refcnt >= 0) { 789 /* Wait for processes to go away. */ 790 usb_detach_wait((sc->axe_dev)); 791 } 792 splx(s); 793 794 usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->axe_udev, sc->axe_dev); 795 796 return 0; 797 } 798 799 int 800 axe_activate(device_t self, devact_t act) 801 { 802 struct axe_softc *sc = device_private(self); 803 804 DPRINTFN(2,("%s: %s: enter\n", USBDEVNAME(sc->axe_dev), __func__)); 805 806 switch (act) { 807 case DVACT_DEACTIVATE: 808 if_deactivate(&sc->axe_ec.ec_if); 809 sc->axe_dying = 1; 810 return 0; 811 default: 812 return EOPNOTSUPP; 813 } 814 } 815 816 /* 817 * Initialize an RX descriptor and attach an MBUF cluster. 818 */ 819 static int 820 axe_newbuf(struct axe_softc *sc, struct axe_chain *c, struct mbuf *m) 821 { 822 struct mbuf *m_new = NULL; 823 824 DPRINTFN(10,("%s: %s: enter\n", USBDEVNAME(sc->axe_dev),__func__)); 825 826 if (m == NULL) { 827 MGETHDR(m_new, M_DONTWAIT, MT_DATA); 828 if (m_new == NULL) { 829 aprint_error_dev(sc->axe_dev, "no memory for rx list " 830 "-- packet dropped!\n"); 831 return ENOBUFS; 832 } 833 834 MCLGET(m_new, M_DONTWAIT); 835 if ((m_new->m_flags & M_EXT) == 0) { 836 aprint_error_dev(sc->axe_dev, "no memory for rx list " 837 "-- packet dropped!\n"); 838 m_freem(m_new); 839 return ENOBUFS; 840 } 841 m_new->m_len = m_new->m_pkthdr.len = MCLBYTES; 842 } else { 843 m_new = m; 844 m_new->m_len = m_new->m_pkthdr.len = MCLBYTES; 845 m_new->m_data = m_new->m_ext.ext_buf; 846 } 847 848 m_adj(m_new, ETHER_ALIGN); 849 c->axe_mbuf = m_new; 850 851 return 0; 852 } 853 854 static int 855 axe_rx_list_init(struct axe_softc *sc) 856 { 857 struct axe_cdata *cd; 858 struct axe_chain *c; 859 int i; 860 861 DPRINTF(("%s: %s: enter\n", USBDEVNAME(sc->axe_dev), __func__)); 862 863 cd = &sc->axe_cdata; 864 for (i = 0; i < AXE_RX_LIST_CNT; i++) { 865 c = &cd->axe_rx_chain[i]; 866 c->axe_sc = sc; 867 c->axe_idx = i; 868 if (axe_newbuf(sc, c, NULL) == ENOBUFS) 869 return ENOBUFS; 870 if (c->axe_xfer == NULL) { 871 c->axe_xfer = usbd_alloc_xfer(sc->axe_udev); 872 if (c->axe_xfer == NULL) 873 return ENOBUFS; 874 c->axe_buf = usbd_alloc_buffer(c->axe_xfer, 875 sc->axe_bufsz); 876 if (c->axe_buf == NULL) { 877 usbd_free_xfer(c->axe_xfer); 878 return ENOBUFS; 879 } 880 } 881 } 882 883 return 0; 884 } 885 886 static int 887 axe_tx_list_init(struct axe_softc *sc) 888 { 889 struct axe_cdata *cd; 890 struct axe_chain *c; 891 int i; 892 893 DPRINTF(("%s: %s: enter\n", USBDEVNAME(sc->axe_dev), __func__)); 894 895 cd = &sc->axe_cdata; 896 for (i = 0; i < AXE_TX_LIST_CNT; i++) { 897 c = &cd->axe_tx_chain[i]; 898 c->axe_sc = sc; 899 c->axe_idx = i; 900 c->axe_mbuf = NULL; 901 if (c->axe_xfer == NULL) { 902 c->axe_xfer = usbd_alloc_xfer(sc->axe_udev); 903 if (c->axe_xfer == NULL) 904 return ENOBUFS; 905 c->axe_buf = usbd_alloc_buffer(c->axe_xfer, 906 sc->axe_bufsz); 907 if (c->axe_buf == NULL) { 908 usbd_free_xfer(c->axe_xfer); 909 return ENOBUFS; 910 } 911 } 912 } 913 914 return 0; 915 } 916 917 /* 918 * A frame has been uploaded: pass the resulting mbuf chain up to 919 * the higher level protocols. 920 */ 921 static void 922 axe_rxeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status) 923 { 924 struct axe_softc *sc; 925 struct axe_chain *c; 926 struct ifnet *ifp; 927 uint8_t *buf; 928 uint32_t total_len; 929 uint16_t pktlen = 0; 930 struct mbuf *m; 931 struct axe_sframe_hdr hdr; 932 int s; 933 934 c = (struct axe_chain *)priv; 935 sc = c->axe_sc; 936 buf = c->axe_buf; 937 ifp = &sc->sc_if; 938 939 DPRINTFN(10,("%s: %s: enter\n", USBDEVNAME(sc->axe_dev),__func__)); 940 941 if (sc->axe_dying) 942 return; 943 944 if ((ifp->if_flags & IFF_RUNNING) == 0) 945 return; 946 947 if (status != USBD_NORMAL_COMPLETION) { 948 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) 949 return; 950 if (usbd_ratecheck(&sc->axe_rx_notice)) 951 aprint_error_dev(sc->axe_dev, "usb errors on rx: %s\n", 952 usbd_errstr(status)); 953 if (status == USBD_STALLED) 954 usbd_clear_endpoint_stall_async(sc->axe_ep[AXE_ENDPT_RX]); 955 goto done; 956 } 957 958 usbd_get_xfer_status(xfer, NULL, NULL, &total_len, NULL); 959 960 do { 961 if (sc->axe_flags & AX178 || sc->axe_flags & AX772) { 962 if (total_len < sizeof(hdr)) { 963 ifp->if_ierrors++; 964 goto done; 965 } 966 buf += pktlen; 967 968 memcpy(&hdr, buf, sizeof(hdr)); 969 total_len -= sizeof(hdr); 970 971 if ((hdr.len ^ hdr.ilen) != 0xffff) { 972 ifp->if_ierrors++; 973 goto done; 974 } 975 pktlen = le16toh(hdr.len); 976 if (pktlen > total_len) { 977 ifp->if_ierrors++; 978 goto done; 979 } 980 981 buf += sizeof(hdr); 982 983 pktlen = roundup2(pktlen, 2); 984 985 if (total_len < pktlen) 986 total_len = 0; 987 else 988 total_len -= pktlen; 989 } else { /* AX172 */ 990 pktlen = total_len; 991 total_len = 0; 992 } 993 994 m = c->axe_mbuf; 995 996 /* XXX ugly */ 997 if (axe_newbuf(sc, c, NULL) == ENOBUFS) { 998 ifp->if_ierrors++; 999 goto done; 1000 } 1001 1002 ifp->if_ipackets++; 1003 m->m_pkthdr.rcvif = ifp; 1004 m->m_pkthdr.len = m->m_len = pktlen; 1005 1006 memcpy(mtod(m, char *), buf, pktlen); 1007 1008 /* No errors; receive the packet. */ 1009 pktlen -= ETHER_CRC_LEN + 4; 1010 1011 s = splnet(); 1012 1013 bpf_mtap(ifp, m); 1014 1015 DPRINTFN(10,("%s: %s: deliver %d\n", USBDEVNAME(sc->axe_dev), 1016 __func__, m->m_len)); 1017 (*(ifp)->if_input)((ifp), (m)); 1018 1019 splx(s); 1020 1021 } while (total_len > 0); 1022 1023 done: 1024 1025 /* Setup new transfer. */ 1026 usbd_setup_xfer(xfer, sc->axe_ep[AXE_ENDPT_RX], 1027 c, c->axe_buf, sc->axe_bufsz, 1028 USBD_SHORT_XFER_OK | USBD_NO_COPY, 1029 USBD_NO_TIMEOUT, axe_rxeof); 1030 usbd_transfer(xfer); 1031 1032 DPRINTFN(10,("%s: %s: start rx\n", USBDEVNAME(sc->axe_dev), __func__)); 1033 } 1034 1035 /* 1036 * A frame was downloaded to the chip. It's safe for us to clean up 1037 * the list buffers. 1038 */ 1039 1040 static void 1041 axe_txeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status) 1042 { 1043 struct axe_softc *sc; 1044 struct axe_chain *c; 1045 struct ifnet *ifp; 1046 int s; 1047 1048 c = priv; 1049 sc = c->axe_sc; 1050 ifp = &sc->sc_if; 1051 1052 if (sc->axe_dying) 1053 return; 1054 1055 s = splnet(); 1056 1057 if (status != USBD_NORMAL_COMPLETION) { 1058 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) { 1059 splx(s); 1060 return; 1061 } 1062 ifp->if_oerrors++; 1063 aprint_error_dev(sc->axe_dev, "usb error on tx: %s\n", 1064 usbd_errstr(status)); 1065 if (status == USBD_STALLED) 1066 usbd_clear_endpoint_stall_async(sc->axe_ep[AXE_ENDPT_TX]); 1067 splx(s); 1068 return; 1069 } 1070 1071 ifp->if_timer = 0; 1072 ifp->if_flags &= ~IFF_OACTIVE; 1073 1074 m_freem(c->axe_mbuf); 1075 c->axe_mbuf = NULL; 1076 1077 if (!IFQ_IS_EMPTY(&ifp->if_snd)) 1078 axe_start(ifp); 1079 1080 ifp->if_opackets++; 1081 splx(s); 1082 } 1083 1084 static void 1085 axe_tick(void *xsc) 1086 { 1087 struct axe_softc *sc = xsc; 1088 1089 if (sc == NULL) 1090 return; 1091 1092 DPRINTFN(0xff, ("%s: %s: enter\n", USBDEVNAME(sc->axe_dev), __func__)); 1093 1094 if (sc->axe_dying) 1095 return; 1096 1097 /* Perform periodic stuff in process context */ 1098 usb_add_task(sc->axe_udev, &sc->axe_tick_task, USB_TASKQ_DRIVER); 1099 } 1100 1101 static void 1102 axe_tick_task(void *xsc) 1103 { 1104 int s; 1105 struct axe_softc *sc; 1106 struct ifnet *ifp; 1107 struct mii_data *mii; 1108 1109 sc = xsc; 1110 1111 if (sc == NULL) 1112 return; 1113 1114 if (sc->axe_dying) 1115 return; 1116 1117 ifp = &sc->sc_if; 1118 mii = &sc->axe_mii; 1119 1120 if (mii == NULL) 1121 return; 1122 1123 s = splnet(); 1124 1125 mii_tick(mii); 1126 if (sc->axe_link == 0 && 1127 (mii->mii_media_status & IFM_ACTIVE) != 0 && 1128 IFM_SUBTYPE(mii->mii_media_active) != IFM_NONE) { 1129 DPRINTF(("%s: %s: got link\n", device_xname(sc->axe_dev), 1130 __func__)); 1131 sc->axe_link++; 1132 if (!IFQ_IS_EMPTY(&ifp->if_snd)) 1133 axe_start(ifp); 1134 } 1135 1136 callout_schedule(&sc->axe_stat_ch, hz); 1137 1138 splx(s); 1139 } 1140 1141 static int 1142 axe_encap(struct axe_softc *sc, struct mbuf *m, int idx) 1143 { 1144 struct ifnet *ifp = &sc->sc_if; 1145 struct axe_chain *c; 1146 usbd_status err; 1147 struct axe_sframe_hdr hdr; 1148 int length, boundary; 1149 1150 c = &sc->axe_cdata.axe_tx_chain[idx]; 1151 1152 /* 1153 * Copy the mbuf data into a contiguous buffer, leaving two 1154 * bytes at the beginning to hold the frame length. 1155 */ 1156 if (sc->axe_flags & AX178 || sc->axe_flags & AX772) { 1157 boundary = (sc->axe_udev->speed == USB_SPEED_HIGH) ? 512 : 64; 1158 1159 hdr.len = htole16(m->m_pkthdr.len); 1160 hdr.ilen = ~hdr.len; 1161 1162 memcpy(c->axe_buf, &hdr, sizeof(hdr)); 1163 length = sizeof(hdr); 1164 1165 m_copydata(m, 0, m->m_pkthdr.len, c->axe_buf + length); 1166 length += m->m_pkthdr.len; 1167 1168 if ((length % boundary) == 0) { 1169 hdr.len = 0x0000; 1170 hdr.ilen = 0xffff; 1171 memcpy(c->axe_buf + length, &hdr, sizeof(hdr)); 1172 length += sizeof(hdr); 1173 } 1174 } else { 1175 m_copydata(m, 0, m->m_pkthdr.len, c->axe_buf); 1176 length = m->m_pkthdr.len; 1177 } 1178 c->axe_mbuf = m; 1179 1180 usbd_setup_xfer(c->axe_xfer, sc->axe_ep[AXE_ENDPT_TX], 1181 c, c->axe_buf, length, USBD_FORCE_SHORT_XFER | USBD_NO_COPY, 10000, 1182 axe_txeof); 1183 1184 /* Transmit */ 1185 err = usbd_transfer(c->axe_xfer); 1186 if (err != USBD_IN_PROGRESS) { 1187 axe_stop(ifp, 0); 1188 return EIO; 1189 } 1190 1191 sc->axe_cdata.axe_tx_cnt++; 1192 1193 return 0; 1194 } 1195 1196 static void 1197 axe_start(struct ifnet *ifp) 1198 { 1199 struct axe_softc *sc; 1200 struct mbuf *m_head = NULL; 1201 1202 sc = ifp->if_softc; 1203 1204 if ((sc->axe_flags & AXE_MII) != 0 && sc->axe_link == 0) 1205 return; 1206 1207 if ((ifp->if_flags & (IFF_OACTIVE|IFF_RUNNING)) != IFF_RUNNING) 1208 return; 1209 1210 IFQ_POLL(&ifp->if_snd, m_head); 1211 if (m_head == NULL) { 1212 return; 1213 } 1214 1215 if (axe_encap(sc, m_head, 0)) { 1216 ifp->if_flags |= IFF_OACTIVE; 1217 return; 1218 } 1219 IFQ_DEQUEUE(&ifp->if_snd, m_head); 1220 1221 /* 1222 * If there's a BPF listener, bounce a copy of this frame 1223 * to him. 1224 */ 1225 bpf_mtap(ifp, m_head); 1226 1227 ifp->if_flags |= IFF_OACTIVE; 1228 1229 /* 1230 * Set a timeout in case the chip goes out to lunch. 1231 */ 1232 ifp->if_timer = 5; 1233 1234 return; 1235 } 1236 1237 static int 1238 axe_init(struct ifnet *ifp) 1239 { 1240 struct axe_softc *sc = ifp->if_softc; 1241 struct axe_chain *c; 1242 usbd_status err; 1243 int rxmode; 1244 int i, s; 1245 uint8_t eaddr[ETHER_ADDR_LEN]; 1246 1247 s = splnet(); 1248 1249 if (ifp->if_flags & IFF_RUNNING) 1250 axe_stop(ifp, 0); 1251 1252 /* 1253 * Cancel pending I/O and free all RX/TX buffers. 1254 */ 1255 axe_reset(sc); 1256 1257 /* Set MAC address */ 1258 if (sc->axe_flags & AX178 || sc->axe_flags & AX772) { 1259 memcpy(eaddr, CLLADDR(ifp->if_sadl), sizeof(eaddr)); 1260 axe_lock_mii(sc); 1261 axe_cmd(sc, AXE_178_CMD_WRITE_NODEID, 0, 0, eaddr); 1262 axe_unlock_mii(sc); 1263 } 1264 1265 /* Enable RX logic. */ 1266 1267 /* Init RX ring. */ 1268 if (axe_rx_list_init(sc) == ENOBUFS) { 1269 aprint_error_dev(sc->axe_dev, "rx list init failed\n"); 1270 splx(s); 1271 return ENOBUFS; 1272 } 1273 1274 /* Init TX ring. */ 1275 if (axe_tx_list_init(sc) == ENOBUFS) { 1276 aprint_error_dev(sc->axe_dev, "tx list init failed\n"); 1277 splx(s); 1278 return ENOBUFS; 1279 } 1280 1281 /* Set transmitter IPG values */ 1282 axe_lock_mii(sc); 1283 if (sc->axe_flags & AX178 || sc->axe_flags & AX772) 1284 axe_cmd(sc, AXE_178_CMD_WRITE_IPG012, sc->axe_ipgs[2], 1285 (sc->axe_ipgs[1] << 8) | (sc->axe_ipgs[0]), NULL); 1286 else { 1287 axe_cmd(sc, AXE_172_CMD_WRITE_IPG0, 0, sc->axe_ipgs[0], NULL); 1288 axe_cmd(sc, AXE_172_CMD_WRITE_IPG1, 0, sc->axe_ipgs[1], NULL); 1289 axe_cmd(sc, AXE_172_CMD_WRITE_IPG2, 0, sc->axe_ipgs[2], NULL); 1290 } 1291 1292 /* Enable receiver, set RX mode */ 1293 rxmode = AXE_RXCMD_BROADCAST | AXE_RXCMD_MULTICAST | AXE_RXCMD_ENABLE; 1294 if (sc->axe_flags & AX178 || sc->axe_flags & AX772) { 1295 if (sc->axe_udev->speed == USB_SPEED_HIGH) { 1296 /* Largest possible USB buffer size for AX88178 */ 1297 rxmode |= AXE_178_RXCMD_MFB; 1298 } 1299 } else 1300 rxmode |= AXE_172_RXCMD_UNICAST; 1301 1302 /* If we want promiscuous mode, set the allframes bit. */ 1303 if (ifp->if_flags & IFF_PROMISC) 1304 rxmode |= AXE_RXCMD_PROMISC; 1305 1306 if (ifp->if_flags & IFF_BROADCAST) 1307 rxmode |= AXE_RXCMD_BROADCAST; 1308 1309 axe_cmd(sc, AXE_CMD_RXCTL_WRITE, 0, rxmode, NULL); 1310 axe_unlock_mii(sc); 1311 1312 /* Load the multicast filter. */ 1313 axe_setmulti(sc); 1314 1315 /* Open RX and TX pipes. */ 1316 err = usbd_open_pipe(sc->axe_iface, sc->axe_ed[AXE_ENDPT_RX], 1317 USBD_EXCLUSIVE_USE, &sc->axe_ep[AXE_ENDPT_RX]); 1318 if (err) { 1319 aprint_error_dev(sc->axe_dev, "open rx pipe failed: %s\n", 1320 usbd_errstr(err)); 1321 splx(s); 1322 return EIO; 1323 } 1324 1325 err = usbd_open_pipe(sc->axe_iface, sc->axe_ed[AXE_ENDPT_TX], 1326 USBD_EXCLUSIVE_USE, &sc->axe_ep[AXE_ENDPT_TX]); 1327 if (err) { 1328 aprint_error_dev(sc->axe_dev, "open tx pipe failed: %s\n", 1329 usbd_errstr(err)); 1330 splx(s); 1331 return EIO; 1332 } 1333 1334 /* Start up the receive pipe. */ 1335 for (i = 0; i < AXE_RX_LIST_CNT; i++) { 1336 c = &sc->axe_cdata.axe_rx_chain[i]; 1337 usbd_setup_xfer(c->axe_xfer, sc->axe_ep[AXE_ENDPT_RX], 1338 c, c->axe_buf, sc->axe_bufsz, 1339 USBD_SHORT_XFER_OK | USBD_NO_COPY, USBD_NO_TIMEOUT, 1340 axe_rxeof); 1341 usbd_transfer(c->axe_xfer); 1342 } 1343 1344 ifp->if_flags |= IFF_RUNNING; 1345 ifp->if_flags &= ~IFF_OACTIVE; 1346 1347 splx(s); 1348 1349 callout_schedule(&sc->axe_stat_ch, hz); 1350 return 0; 1351 } 1352 1353 static int 1354 axe_ioctl(struct ifnet *ifp, u_long cmd, void *data) 1355 { 1356 struct axe_softc *sc = ifp->if_softc; 1357 int s; 1358 int error = 0; 1359 1360 s = splnet(); 1361 1362 switch(cmd) { 1363 case SIOCSIFFLAGS: 1364 if ((error = ifioctl_common(ifp, cmd, data)) != 0) 1365 break; 1366 1367 switch (ifp->if_flags & (IFF_UP | IFF_RUNNING)) { 1368 case IFF_RUNNING: 1369 axe_stop(ifp, 1); 1370 break; 1371 case IFF_UP: 1372 axe_init(ifp); 1373 break; 1374 case IFF_UP | IFF_RUNNING: 1375 if ((ifp->if_flags ^ sc->axe_if_flags) == IFF_PROMISC) 1376 axe_setmulti(sc); 1377 else 1378 axe_init(ifp); 1379 break; 1380 } 1381 sc->axe_if_flags = ifp->if_flags; 1382 break; 1383 1384 default: 1385 if ((error = ether_ioctl(ifp, cmd, data)) != ENETRESET) 1386 break; 1387 1388 error = 0; 1389 1390 if (cmd == SIOCADDMULTI || cmd == SIOCDELMULTI) 1391 axe_setmulti(sc); 1392 1393 } 1394 splx(s); 1395 1396 return error; 1397 } 1398 1399 static void 1400 axe_watchdog(struct ifnet *ifp) 1401 { 1402 struct axe_softc *sc; 1403 struct axe_chain *c; 1404 usbd_status stat; 1405 int s; 1406 1407 sc = ifp->if_softc; 1408 1409 ifp->if_oerrors++; 1410 aprint_error_dev(sc->axe_dev, "watchdog timeout\n"); 1411 1412 s = splusb(); 1413 c = &sc->axe_cdata.axe_tx_chain[0]; 1414 usbd_get_xfer_status(c->axe_xfer, NULL, NULL, NULL, &stat); 1415 axe_txeof(c->axe_xfer, c, stat); 1416 1417 if (!IFQ_IS_EMPTY(&ifp->if_snd)) 1418 axe_start(ifp); 1419 splx(s); 1420 } 1421 1422 /* 1423 * Stop the adapter and free any mbufs allocated to the 1424 * RX and TX lists. 1425 */ 1426 static void 1427 axe_stop(struct ifnet *ifp, int disable) 1428 { 1429 struct axe_softc *sc = ifp->if_softc; 1430 usbd_status err; 1431 int i; 1432 1433 axe_reset(sc); 1434 1435 ifp->if_timer = 0; 1436 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); 1437 1438 callout_stop(&(sc->axe_stat_ch)); 1439 1440 /* Stop transfers. */ 1441 if (sc->axe_ep[AXE_ENDPT_RX] != NULL) { 1442 err = usbd_abort_pipe(sc->axe_ep[AXE_ENDPT_RX]); 1443 if (err) { 1444 aprint_error_dev(sc->axe_dev, 1445 "abort rx pipe failed: %s\n", usbd_errstr(err)); 1446 } 1447 err = usbd_close_pipe(sc->axe_ep[AXE_ENDPT_RX]); 1448 if (err) { 1449 aprint_error_dev(sc->axe_dev, 1450 "close rx pipe failed: %s\n", usbd_errstr(err)); 1451 } 1452 sc->axe_ep[AXE_ENDPT_RX] = NULL; 1453 } 1454 1455 if (sc->axe_ep[AXE_ENDPT_TX] != NULL) { 1456 err = usbd_abort_pipe(sc->axe_ep[AXE_ENDPT_TX]); 1457 if (err) { 1458 aprint_error_dev(sc->axe_dev, 1459 "abort tx pipe failed: %s\n", usbd_errstr(err)); 1460 } 1461 err = usbd_close_pipe(sc->axe_ep[AXE_ENDPT_TX]); 1462 if (err) { 1463 aprint_error_dev(sc->axe_dev, 1464 "close tx pipe failed: %s\n", usbd_errstr(err)); 1465 } 1466 sc->axe_ep[AXE_ENDPT_TX] = NULL; 1467 } 1468 1469 if (sc->axe_ep[AXE_ENDPT_INTR] != NULL) { 1470 err = usbd_abort_pipe(sc->axe_ep[AXE_ENDPT_INTR]); 1471 if (err) { 1472 aprint_error_dev(sc->axe_dev, 1473 "abort intr pipe failed: %s\n", usbd_errstr(err)); 1474 } 1475 err = usbd_close_pipe(sc->axe_ep[AXE_ENDPT_INTR]); 1476 if (err) { 1477 aprint_error_dev(sc->axe_dev, 1478 "close intr pipe failed: %s\n", usbd_errstr(err)); 1479 } 1480 sc->axe_ep[AXE_ENDPT_INTR] = NULL; 1481 } 1482 1483 /* Free RX resources. */ 1484 for (i = 0; i < AXE_RX_LIST_CNT; i++) { 1485 if (sc->axe_cdata.axe_rx_chain[i].axe_mbuf != NULL) { 1486 m_freem(sc->axe_cdata.axe_rx_chain[i].axe_mbuf); 1487 sc->axe_cdata.axe_rx_chain[i].axe_mbuf = NULL; 1488 } 1489 if (sc->axe_cdata.axe_rx_chain[i].axe_xfer != NULL) { 1490 usbd_free_xfer(sc->axe_cdata.axe_rx_chain[i].axe_xfer); 1491 sc->axe_cdata.axe_rx_chain[i].axe_xfer = NULL; 1492 } 1493 } 1494 1495 /* Free TX resources. */ 1496 for (i = 0; i < AXE_TX_LIST_CNT; i++) { 1497 if (sc->axe_cdata.axe_tx_chain[i].axe_mbuf != NULL) { 1498 m_freem(sc->axe_cdata.axe_tx_chain[i].axe_mbuf); 1499 sc->axe_cdata.axe_tx_chain[i].axe_mbuf = NULL; 1500 } 1501 if (sc->axe_cdata.axe_tx_chain[i].axe_xfer != NULL) { 1502 usbd_free_xfer(sc->axe_cdata.axe_tx_chain[i].axe_xfer); 1503 sc->axe_cdata.axe_tx_chain[i].axe_xfer = NULL; 1504 } 1505 } 1506 1507 sc->axe_link = 0; 1508 } 1509
Indexes created Wed Oct 01 18:09:54 GMT 2025