if_axe.c revision 1.35
1 /* $NetBSD: if_axe.c,v 1.35 2010/06/23 19:00:26 pgoyette 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 1.35 2010/06/23 19:00:26 pgoyette 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 sc->axe_refcnt++; 219 mutex_enter(&sc->axe_mii_lock); 220 } 221 222 static void 223 axe_unlock_mii(struct axe_softc *sc) 224 { 225 mutex_exit(&sc->axe_mii_lock); 226 if (--sc->axe_refcnt < 0) 227 usb_detach_wakeup((sc->axe_dev)); 228 } 229 230 static int 231 axe_cmd(struct axe_softc *sc, int cmd, int index, int val, void *buf) 232 { 233 usb_device_request_t req; 234 usbd_status err; 235 236 KASSERT(mutex_owned(&sc->axe_mii_lock)); 237 238 if (sc->axe_dying) 239 return 0; 240 241 if (AXE_CMD_DIR(cmd)) 242 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 243 else 244 req.bmRequestType = UT_READ_VENDOR_DEVICE; 245 req.bRequest = AXE_CMD_CMD(cmd); 246 USETW(req.wValue, val); 247 USETW(req.wIndex, index); 248 USETW(req.wLength, AXE_CMD_LEN(cmd)); 249 250 err = usbd_do_request(sc->axe_udev, &req, buf); 251 252 if (err) { 253 DPRINTF(("axe_cmd err: cmd %d err %d\n", cmd, err)); 254 return -1; 255 } 256 return 0; 257 } 258 259 static int 260 axe_miibus_readreg(device_t dev, int phy, int reg) 261 { 262 struct axe_softc *sc = device_private(dev); 263 usbd_status err; 264 u_int16_t val; 265 266 if (sc->axe_dying) { 267 DPRINTF(("axe: dying\n")); 268 return 0; 269 } 270 271 /* 272 * The chip tells us the MII address of any supported 273 * PHYs attached to the chip, so only read from those. 274 * 275 * But if the chip lies about its PHYs, read from any. 276 */ 277 val = 0; 278 279 if ((phy == sc->axe_phyaddrs[0]) || (phy == sc->axe_phyaddrs[1]) || 280 (sc->axe_flags & AXE_ANY_PHY)) { 281 axe_lock_mii(sc); 282 axe_cmd(sc, AXE_CMD_MII_OPMODE_SW, 0, 0, NULL); 283 err = axe_cmd(sc, AXE_CMD_MII_READ_REG, reg, phy, (void *)&val); 284 axe_cmd(sc, AXE_CMD_MII_OPMODE_HW, 0, 0, NULL); 285 axe_unlock_mii(sc); 286 287 if (err) { 288 aprint_error_dev(sc->axe_dev, "read PHY failed\n"); 289 return -1; 290 } 291 DPRINTF(("axe_miibus_readreg: phy 0x%x reg 0x%x val 0x%x\n", 292 phy, reg, val)); 293 294 if (val && val != 0xffff) 295 sc->axe_phyaddrs[0] = phy; 296 } else { 297 DPRINTF(("axe_miibus_readreg: ignore read from phy 0x%x\n", 298 phy)); 299 } 300 return (le16toh(val)); 301 } 302 303 static void 304 axe_miibus_writereg(device_t dev, int phy, int reg, int aval) 305 { 306 struct axe_softc *sc = device_private(dev); 307 usbd_status err; 308 u_int16_t val; 309 310 if (sc->axe_dying) 311 return; 312 313 val = htole16(aval); 314 axe_lock_mii(sc); 315 axe_cmd(sc, AXE_CMD_MII_OPMODE_SW, 0, 0, NULL); 316 err = axe_cmd(sc, AXE_CMD_MII_WRITE_REG, reg, phy, (void *)&val); 317 axe_cmd(sc, AXE_CMD_MII_OPMODE_HW, 0, 0, NULL); 318 axe_unlock_mii(sc); 319 320 if (err) { 321 aprint_error_dev(sc->axe_dev, "write PHY failed\n"); 322 return; 323 } 324 } 325 326 static void 327 axe_miibus_statchg(device_t dev) 328 { 329 struct axe_softc *sc = device_private(dev); 330 struct mii_data *mii = &sc->axe_mii; 331 int val, err; 332 333 if ((mii->mii_media_active & IFM_GMASK) == IFM_FDX) 334 val = AXE_MEDIA_FULL_DUPLEX; 335 else 336 val = 0; 337 338 if (sc->axe_flags & AX178 || sc->axe_flags & AX772) { 339 val |= (AXE_178_MEDIA_RX_EN | AXE_178_MEDIA_MAGIC); 340 341 switch (IFM_SUBTYPE(mii->mii_media_active)) { 342 case IFM_1000_T: 343 val |= AXE_178_MEDIA_GMII | AXE_178_MEDIA_ENCK; 344 break; 345 case IFM_100_TX: 346 val |= AXE_178_MEDIA_100TX; 347 break; 348 case IFM_10_T: 349 /* doesn't need to be handled */ 350 break; 351 } 352 } 353 354 DPRINTF(("axe_miibus_statchg: val=0x%x\n", val)); 355 axe_lock_mii(sc); 356 err = axe_cmd(sc, AXE_CMD_WRITE_MEDIA, 0, val, NULL); 357 axe_unlock_mii(sc); 358 if (err) { 359 aprint_error_dev(sc->axe_dev, "media change failed\n"); 360 return; 361 } 362 } 363 364 /* 365 * Set media options 366 */ 367 static int 368 axe_ifmedia_upd(struct ifnet *ifp) 369 { 370 struct axe_softc *sc = ifp->if_softc; 371 struct mii_data *mii = &sc->axe_mii; 372 int rc; 373 374 sc->axe_link = 0; 375 376 if (mii->mii_instance) { 377 struct mii_softc *miisc; 378 379 LIST_FOREACH(miisc, &mii->mii_phys, mii_list) 380 mii_phy_reset(miisc); 381 } 382 383 if ((rc = mii_mediachg(mii)) == ENXIO) 384 return 0; 385 return rc; 386 } 387 388 /* 389 * Report current media status 390 */ 391 static void 392 axe_ifmedia_sts(struct ifnet *ifp, struct ifmediareq *ifmr) 393 { 394 struct axe_softc *sc = ifp->if_softc; 395 struct mii_data *mii = &sc->axe_mii; 396 397 mii_pollstat(mii); 398 ifmr->ifm_active = mii->mii_media_active; 399 ifmr->ifm_status = mii->mii_media_status; 400 } 401 402 static void 403 axe_setmulti(struct axe_softc *sc) 404 { 405 struct ifnet *ifp = &sc->sc_if; 406 struct ether_multi *enm; 407 struct ether_multistep step; 408 u_int32_t h = 0; 409 u_int16_t rxmode; 410 u_int8_t hashtbl[8] = { 0, 0, 0, 0, 0, 0, 0, 0 }; 411 412 if (sc->axe_dying) 413 return; 414 415 axe_lock_mii(sc); 416 axe_cmd(sc, AXE_CMD_RXCTL_READ, 0, 0, (void *)&rxmode); 417 rxmode = le16toh(rxmode); 418 419 rxmode &= ~(AXE_RXCMD_ALLMULTI | AXE_RXCMD_PROMISC); 420 421 /* If we want promiscuous mode, set the allframes bit */ 422 if (ifp->if_flags & IFF_PROMISC) { 423 rxmode |= AXE_RXCMD_PROMISC; 424 goto allmulti; 425 } 426 427 /* Now program new ones */ 428 ETHER_FIRST_MULTI(step, &sc->axe_ec, enm); 429 while (enm != NULL) { 430 if (memcmp(enm->enm_addrlo, enm->enm_addrhi, 431 ETHER_ADDR_LEN) != 0) 432 goto allmulti; 433 434 h = ether_crc32_be(enm->enm_addrlo, ETHER_ADDR_LEN) >> 26; 435 hashtbl[h >> 3] |= 1U << (h & 7); 436 ETHER_NEXT_MULTI(step, enm); 437 } 438 ifp->if_flags &= ~IFF_ALLMULTI; 439 axe_cmd(sc, AXE_CMD_WRITE_MCAST, 0, 0, (void *)&hashtbl); 440 axe_cmd(sc, AXE_CMD_RXCTL_WRITE, 0, rxmode, NULL); 441 axe_unlock_mii(sc); 442 return; 443 444 allmulti: 445 ifp->if_flags |= IFF_ALLMULTI; 446 rxmode |= AXE_RXCMD_ALLMULTI; 447 axe_cmd(sc, AXE_CMD_RXCTL_WRITE, 0, rxmode, NULL); 448 axe_unlock_mii(sc); 449 return; 450 } 451 452 static void 453 axe_reset(struct axe_softc *sc) 454 { 455 if (sc->axe_dying) 456 return; 457 /* XXX What to reset? */ 458 459 /* Wait a little while for the chip to get its brains in order. */ 460 DELAY(1000); 461 return; 462 } 463 464 static void 465 axe_ax88178_init(struct axe_softc *sc) 466 { 467 int gpio0 = 0, phymode = 0; 468 uint16_t eeprom; 469 470 axe_cmd(sc, AXE_CMD_SROM_WR_ENABLE, 0, 0, NULL); 471 /* XXX magic */ 472 axe_cmd(sc, AXE_CMD_SROM_READ, 0, 0x0017, &eeprom); 473 axe_cmd(sc, AXE_CMD_SROM_WR_DISABLE, 0, 0, NULL); 474 475 eeprom = le16toh(eeprom); 476 477 DPRINTF((" EEPROM is 0x%x\n", eeprom)); 478 479 /* if EEPROM is invalid we have to use to GPIO0 */ 480 if (eeprom == 0xffff) { 481 phymode = 0; 482 gpio0 = 1; 483 } else { 484 phymode = eeprom & 7; 485 gpio0 = (eeprom & 0x80) ? 0 : 1; 486 } 487 488 DPRINTF(("use gpio0: %d, phymode %d\n", gpio0, phymode)); 489 490 axe_cmd(sc, AXE_CMD_WRITE_GPIO, 0, 0x008c, NULL); 491 usbd_delay_ms(sc->axe_udev, 40); 492 if ((eeprom >> 8) != 1) { 493 axe_cmd(sc, AXE_CMD_WRITE_GPIO, 0, 0x003c, NULL); 494 usbd_delay_ms(sc->axe_udev, 30); 495 496 axe_cmd(sc, AXE_CMD_WRITE_GPIO, 0, 0x001c, NULL); 497 usbd_delay_ms(sc->axe_udev, 300); 498 499 axe_cmd(sc, AXE_CMD_WRITE_GPIO, 0, 0x003c, NULL); 500 usbd_delay_ms(sc->axe_udev, 30); 501 } else { 502 DPRINTF(("axe gpio phymode == 1 path\n")); 503 axe_cmd(sc, AXE_CMD_WRITE_GPIO, 0, 0x0004, NULL); 504 usbd_delay_ms(sc->axe_udev, 30); 505 axe_cmd(sc, AXE_CMD_WRITE_GPIO, 0, 0x000c, NULL); 506 usbd_delay_ms(sc->axe_udev, 30); 507 } 508 509 /* soft reset */ 510 axe_cmd(sc, AXE_CMD_SW_RESET_REG, 0, AXE_SW_RESET_CLEAR, NULL); 511 usbd_delay_ms(sc->axe_udev, 150); 512 axe_cmd(sc, AXE_CMD_SW_RESET_REG, 0, 513 AXE_SW_RESET_PRL | AXE_178_RESET_MAGIC, NULL); 514 usbd_delay_ms(sc->axe_udev, 150); 515 /* Enable MII/GMII/RGMII for external PHY */ 516 axe_cmd(sc, AXE_CMD_SW_PHY_SELECT, 0, 0, NULL); 517 usbd_delay_ms(sc->axe_udev, 10); 518 axe_cmd(sc, AXE_CMD_RXCTL_WRITE, 0, 0, NULL); 519 } 520 521 static void 522 axe_ax88772_init(struct axe_softc *sc) 523 { 524 525 axe_cmd(sc, AXE_CMD_WRITE_GPIO, 0, 0x00b0, NULL); 526 usbd_delay_ms(sc->axe_udev, 40); 527 528 if (sc->axe_phyaddrs[1] == AXE_INTPHY) { 529 /* ask for the embedded PHY */ 530 axe_cmd(sc, AXE_CMD_SW_PHY_SELECT, 0, 0x01, NULL); 531 usbd_delay_ms(sc->axe_udev, 10); 532 533 /* power down and reset state, pin reset state */ 534 axe_cmd(sc, AXE_CMD_SW_RESET_REG, 0, AXE_SW_RESET_CLEAR, NULL); 535 usbd_delay_ms(sc->axe_udev, 60); 536 537 /* power down/reset state, pin operating state */ 538 axe_cmd(sc, AXE_CMD_SW_RESET_REG, 0, 539 AXE_SW_RESET_IPPD | AXE_SW_RESET_PRL, NULL); 540 usbd_delay_ms(sc->axe_udev, 150); 541 542 /* power up, reset */ 543 axe_cmd(sc, AXE_CMD_SW_RESET_REG, 0, AXE_SW_RESET_PRL, NULL); 544 545 /* power up, operating */ 546 axe_cmd(sc, AXE_CMD_SW_RESET_REG, 0, 547 AXE_SW_RESET_IPRL | AXE_SW_RESET_PRL, NULL); 548 } else { 549 /* ask for external PHY */ 550 axe_cmd(sc, AXE_CMD_SW_PHY_SELECT, 0, 0x00, NULL); 551 usbd_delay_ms(sc->axe_udev, 10); 552 553 /* power down internal PHY */ 554 axe_cmd(sc, AXE_CMD_SW_RESET_REG, 0, 555 AXE_SW_RESET_IPPD | AXE_SW_RESET_PRL, NULL); 556 } 557 558 usbd_delay_ms(sc->axe_udev, 150); 559 axe_cmd(sc, AXE_CMD_RXCTL_WRITE, 0, 0, NULL); 560 } 561 562 /* 563 * Probe for a AX88172 chip. 564 */ 565 int 566 axe_match(device_t parent, cfdata_t match, void *aux) 567 { 568 struct usb_attach_arg *uaa = aux; 569 570 return (axe_lookup(uaa->vendor, uaa->product) != NULL ? 571 UMATCH_VENDOR_PRODUCT : UMATCH_NONE); 572 } 573 574 /* 575 * Attach the interface. Allocate softc structures, do ifmedia 576 * setup and ethernet/BPF attach. 577 */ 578 void 579 axe_attach(device_t parent, device_t self, void *aux) 580 { 581 struct axe_softc *sc = device_private(self); 582 struct usb_attach_arg *uaa = aux; 583 usbd_device_handle dev = uaa->device; 584 usbd_status err; 585 usb_interface_descriptor_t *id; 586 usb_endpoint_descriptor_t *ed; 587 struct mii_data *mii; 588 uint8_t eaddr[ETHER_ADDR_LEN]; 589 char *devinfop; 590 const char *devname = device_xname(self); 591 struct ifnet *ifp; 592 int i, s; 593 594 aprint_naive("\n"); 595 aprint_normal("\n"); 596 597 sc->axe_dev = self; 598 sc->axe_udev = dev; 599 600 devinfop = usbd_devinfo_alloc(dev, 0); 601 aprint_normal_dev(self, "%s\n", devinfop); 602 usbd_devinfo_free(devinfop); 603 604 err = usbd_set_config_no(dev, AXE_CONFIG_NO, 1); 605 if (err) { 606 aprint_error_dev(self, "getting interface handle failed\n"); 607 return; 608 } 609 610 sc->axe_flags = axe_lookup(uaa->vendor, uaa->product)->axe_flags; 611 612 mutex_init(&sc->axe_mii_lock, MUTEX_DEFAULT, IPL_NONE); 613 usb_init_task(&sc->axe_tick_task, axe_tick_task, sc); 614 usb_init_task(&sc->axe_stop_task, (void (*)(void *))axe_stop, 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) { 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 return; 743 } 744 745 int 746 axe_detach(device_t self, int flags) 747 { 748 struct axe_softc *sc = device_private(self); 749 int s; 750 struct ifnet *ifp = &sc->sc_if; 751 752 DPRINTFN(2,("%s: %s: enter\n", USBDEVNAME(sc->axe_dev), __func__)); 753 754 /* Detached before attached finished, so just bail out. */ 755 if (!sc->axe_attached) 756 return 0; 757 758 callout_destroy(&sc->axe_stat_ch); 759 760 sc->axe_dying = 1; 761 762 if (sc->axe_ep[AXE_ENDPT_TX] != NULL) 763 usbd_abort_pipe(sc->axe_ep[AXE_ENDPT_TX]); 764 if (sc->axe_ep[AXE_ENDPT_RX] != NULL) 765 usbd_abort_pipe(sc->axe_ep[AXE_ENDPT_RX]); 766 if (sc->axe_ep[AXE_ENDPT_INTR] != NULL) 767 usbd_abort_pipe(sc->axe_ep[AXE_ENDPT_INTR]); 768 769 /* 770 * Remove any pending tasks. They cannot be executing because they run 771 * in the same thread as detach. 772 */ 773 usb_rem_task(sc->axe_udev, &sc->axe_tick_task); 774 usb_rem_task(sc->axe_udev, &sc->axe_stop_task); 775 776 s = splusb(); 777 778 if (--sc->axe_refcnt >= 0) { 779 /* Wait for processes to go away */ 780 usb_detach_wait((sc->axe_dev)); 781 } 782 783 if (ifp->if_flags & IFF_RUNNING) 784 axe_stop(ifp, 1); 785 786 #if NRND > 0 787 rnd_detach_source(&sc->rnd_source); 788 #endif 789 mii_detach(&sc->axe_mii, MII_PHY_ANY, MII_OFFSET_ANY); 790 ifmedia_delete_instance(&sc->axe_mii.mii_media, IFM_INST_ANY); 791 ether_ifdetach(ifp); 792 if_detach(ifp); 793 794 #ifdef DIAGNOSTIC 795 if (sc->axe_ep[AXE_ENDPT_TX] != NULL || 796 sc->axe_ep[AXE_ENDPT_RX] != NULL || 797 sc->axe_ep[AXE_ENDPT_INTR] != NULL) 798 aprint_debug_dev(self, "detach has active endpoints\n"); 799 #endif 800 801 sc->axe_attached = 0; 802 803 if (--sc->axe_refcnt >= 0) { 804 /* Wait for processes to go away. */ 805 usb_detach_wait((sc->axe_dev)); 806 } 807 splx(s); 808 809 usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->axe_udev, sc->axe_dev); 810 811 return 0; 812 } 813 814 int 815 axe_activate(device_t self, devact_t act) 816 { 817 struct axe_softc *sc = device_private(self); 818 819 DPRINTFN(2,("%s: %s: enter\n", USBDEVNAME(sc->axe_dev), __func__)); 820 821 switch (act) { 822 case DVACT_DEACTIVATE: 823 if_deactivate(&sc->axe_ec.ec_if); 824 sc->axe_dying = 1; 825 return 0; 826 default: 827 return EOPNOTSUPP; 828 } 829 } 830 831 /* 832 * Initialize an RX descriptor and attach an MBUF cluster. 833 */ 834 static int 835 axe_newbuf(struct axe_softc *sc, struct axe_chain *c, struct mbuf *m) 836 { 837 struct mbuf *m_new = NULL; 838 839 DPRINTFN(10,("%s: %s: enter\n", USBDEVNAME(sc->axe_dev),__func__)); 840 841 if (m == NULL) { 842 MGETHDR(m_new, M_DONTWAIT, MT_DATA); 843 if (m_new == NULL) { 844 aprint_error_dev(sc->axe_dev, "no memory for rx list " 845 "-- packet dropped!\n"); 846 return (ENOBUFS); 847 } 848 849 MCLGET(m_new, M_DONTWAIT); 850 if (!(m_new->m_flags & M_EXT)) { 851 aprint_error_dev(sc->axe_dev, "no memory for rx list " 852 "-- packet dropped!\n"); 853 m_freem(m_new); 854 return (ENOBUFS); 855 } 856 m_new->m_len = m_new->m_pkthdr.len = MCLBYTES; 857 } else { 858 m_new = m; 859 m_new->m_len = m_new->m_pkthdr.len = MCLBYTES; 860 m_new->m_data = m_new->m_ext.ext_buf; 861 } 862 863 m_adj(m_new, ETHER_ALIGN); 864 c->axe_mbuf = m_new; 865 866 return (0); 867 } 868 869 static int 870 axe_rx_list_init(struct axe_softc *sc) 871 { 872 struct axe_cdata *cd; 873 struct axe_chain *c; 874 int i; 875 876 DPRINTF(("%s: %s: enter\n", USBDEVNAME(sc->axe_dev), __func__)); 877 878 cd = &sc->axe_cdata; 879 for (i = 0; i < AXE_RX_LIST_CNT; i++) { 880 c = &cd->axe_rx_chain[i]; 881 c->axe_sc = sc; 882 c->axe_idx = i; 883 if (axe_newbuf(sc, c, NULL) == ENOBUFS) 884 return (ENOBUFS); 885 if (c->axe_xfer == NULL) { 886 c->axe_xfer = usbd_alloc_xfer(sc->axe_udev); 887 if (c->axe_xfer == NULL) 888 return (ENOBUFS); 889 c->axe_buf = usbd_alloc_buffer(c->axe_xfer, 890 sc->axe_bufsz); 891 if (c->axe_buf == NULL) { 892 usbd_free_xfer(c->axe_xfer); 893 return (ENOBUFS); 894 } 895 } 896 } 897 898 return 0; 899 } 900 901 static int 902 axe_tx_list_init(struct axe_softc *sc) 903 { 904 struct axe_cdata *cd; 905 struct axe_chain *c; 906 int i; 907 908 DPRINTF(("%s: %s: enter\n", USBDEVNAME(sc->axe_dev), __func__)); 909 910 cd = &sc->axe_cdata; 911 for (i = 0; i < AXE_TX_LIST_CNT; i++) { 912 c = &cd->axe_tx_chain[i]; 913 c->axe_sc = sc; 914 c->axe_idx = i; 915 c->axe_mbuf = NULL; 916 if (c->axe_xfer == NULL) { 917 c->axe_xfer = usbd_alloc_xfer(sc->axe_udev); 918 if (c->axe_xfer == NULL) 919 return (ENOBUFS); 920 c->axe_buf = usbd_alloc_buffer(c->axe_xfer, 921 sc->axe_bufsz); 922 if (c->axe_buf == NULL) { 923 usbd_free_xfer(c->axe_xfer); 924 return (ENOBUFS); 925 } 926 } 927 } 928 929 return 0; 930 } 931 932 /* 933 * A frame has been uploaded: pass the resulting mbuf chain up to 934 * the higher level protocols. 935 */ 936 static void 937 axe_rxeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status) 938 { 939 struct axe_softc *sc; 940 struct axe_chain *c; 941 struct ifnet *ifp; 942 uint8_t *buf; 943 u_int32_t total_len; 944 u_int16_t pktlen = 0; 945 struct mbuf *m; 946 struct axe_sframe_hdr hdr; 947 int s; 948 949 c = (struct axe_chain *)priv; 950 sc = c->axe_sc; 951 buf = c->axe_buf; 952 ifp = &sc->sc_if; 953 954 DPRINTFN(10,("%s: %s: enter\n", USBDEVNAME(sc->axe_dev),__func__)); 955 956 if (sc->axe_dying) 957 return; 958 959 if (!(ifp->if_flags & IFF_RUNNING)) 960 return; 961 962 if (status != USBD_NORMAL_COMPLETION) { 963 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) 964 return; 965 if (usbd_ratecheck(&sc->axe_rx_notice)) 966 aprint_error_dev(sc->axe_dev, "usb errors on rx: %s\n", 967 usbd_errstr(status)); 968 if (status == USBD_STALLED) 969 usbd_clear_endpoint_stall_async(sc->axe_ep[AXE_ENDPT_RX]); 970 goto done; 971 } 972 973 usbd_get_xfer_status(xfer, NULL, NULL, &total_len, NULL); 974 975 do { 976 if (sc->axe_flags & AX178 || sc->axe_flags & AX772) { 977 if (total_len < sizeof(hdr)) { 978 ifp->if_ierrors++; 979 goto done; 980 } 981 buf += pktlen; 982 983 memcpy(&hdr, buf, sizeof(hdr)); 984 total_len -= sizeof(hdr); 985 986 if ((hdr.len ^ hdr.ilen) != 0xffff) { 987 ifp->if_ierrors++; 988 goto done; 989 } 990 pktlen = le16toh(hdr.len); 991 if (pktlen > total_len) { 992 ifp->if_ierrors++; 993 goto done; 994 } 995 996 buf += sizeof(hdr); 997 998 pktlen = roundup2(pktlen, 2); 999 1000 if (total_len < pktlen) 1001 total_len = 0; 1002 else 1003 total_len -= pktlen; 1004 } else { /* AX172 */ 1005 pktlen = total_len; 1006 total_len = 0; 1007 } 1008 1009 m = c->axe_mbuf; 1010 1011 /* XXX ugly */ 1012 if (axe_newbuf(sc, c, NULL) == ENOBUFS) { 1013 ifp->if_ierrors++; 1014 goto done; 1015 } 1016 1017 ifp->if_ipackets++; 1018 m->m_pkthdr.rcvif = ifp; 1019 m->m_pkthdr.len = m->m_len = pktlen; 1020 1021 memcpy(mtod(m, char *), buf, pktlen); 1022 1023 /* No errors; receive the packet. */ 1024 pktlen -= ETHER_CRC_LEN + 4; 1025 1026 s = splnet(); 1027 1028 bpf_mtap(ifp, m); 1029 1030 DPRINTFN(10,("%s: %s: deliver %d\n", USBDEVNAME(sc->axe_dev), 1031 __func__, m->m_len)); 1032 (*(ifp)->if_input)((ifp), (m)); 1033 1034 splx(s); 1035 1036 } while (total_len > 0); 1037 1038 done: 1039 1040 /* Setup new transfer. */ 1041 usbd_setup_xfer(xfer, sc->axe_ep[AXE_ENDPT_RX], 1042 c, c->axe_buf, sc->axe_bufsz, 1043 USBD_SHORT_XFER_OK | USBD_NO_COPY, 1044 USBD_NO_TIMEOUT, axe_rxeof); 1045 usbd_transfer(xfer); 1046 1047 DPRINTFN(10,("%s: %s: start rx\n", USBDEVNAME(sc->axe_dev), 1048 __func__)); 1049 return; 1050 } 1051 1052 /* 1053 * A frame was downloaded to the chip. It's safe for us to clean up 1054 * the list buffers. 1055 */ 1056 1057 static void 1058 axe_txeof(usbd_xfer_handle xfer, usbd_private_handle priv, 1059 usbd_status status) 1060 { 1061 struct axe_softc *sc; 1062 struct axe_chain *c; 1063 struct ifnet *ifp; 1064 int s; 1065 1066 c = priv; 1067 sc = c->axe_sc; 1068 ifp = &sc->sc_if; 1069 1070 if (sc->axe_dying) 1071 return; 1072 1073 s = splnet(); 1074 1075 if (status != USBD_NORMAL_COMPLETION) { 1076 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) { 1077 splx(s); 1078 return; 1079 } 1080 ifp->if_oerrors++; 1081 aprint_error_dev(sc->axe_dev, "usb error on tx: %s\n", 1082 usbd_errstr(status)); 1083 if (status == USBD_STALLED) 1084 usbd_clear_endpoint_stall_async(sc->axe_ep[AXE_ENDPT_TX]); 1085 splx(s); 1086 return; 1087 } 1088 1089 ifp->if_timer = 0; 1090 ifp->if_flags &= ~IFF_OACTIVE; 1091 1092 m_freem(c->axe_mbuf); 1093 c->axe_mbuf = NULL; 1094 1095 if (IFQ_IS_EMPTY(&ifp->if_snd) == 0) 1096 axe_start(ifp); 1097 1098 ifp->if_opackets++; 1099 splx(s); 1100 return; 1101 } 1102 1103 static void 1104 axe_tick(void *xsc) 1105 { 1106 struct axe_softc *sc = xsc; 1107 1108 if (sc == NULL) 1109 return; 1110 1111 DPRINTFN(0xff, ("%s: %s: enter\n", USBDEVNAME(sc->axe_dev), 1112 __func__)); 1113 1114 if (sc->axe_dying) 1115 return; 1116 1117 /* Perform periodic stuff in process context */ 1118 usb_add_task(sc->axe_udev, &sc->axe_tick_task, USB_TASKQ_DRIVER); 1119 1120 } 1121 1122 static void 1123 axe_tick_task(void *xsc) 1124 { 1125 int s; 1126 struct axe_softc *sc; 1127 struct ifnet *ifp; 1128 struct mii_data *mii; 1129 1130 sc = xsc; 1131 1132 if (sc == NULL) 1133 return; 1134 1135 if (sc->axe_dying) 1136 return; 1137 1138 ifp = &sc->sc_if; 1139 mii = &sc->axe_mii; 1140 1141 if (mii == NULL) 1142 return; 1143 1144 s = splnet(); 1145 1146 mii_tick(mii); 1147 if (!sc->axe_link && mii->mii_media_status & IFM_ACTIVE && 1148 IFM_SUBTYPE(mii->mii_media_active) != IFM_NONE) { 1149 DPRINTF(("%s: %s: got link\n", device_xname(sc->axe_dev), 1150 __func__)); 1151 sc->axe_link++; 1152 if (!IFQ_IS_EMPTY(&ifp->if_snd) == 0) 1153 axe_start(ifp); 1154 } 1155 1156 callout_schedule(&sc->axe_stat_ch, hz); 1157 1158 splx(s); 1159 } 1160 1161 static int 1162 axe_encap(struct axe_softc *sc, struct mbuf *m, int idx) 1163 { 1164 struct ifnet *ifp = &sc->sc_if; 1165 struct axe_chain *c; 1166 usbd_status err; 1167 struct axe_sframe_hdr hdr; 1168 int length, boundary; 1169 1170 c = &sc->axe_cdata.axe_tx_chain[idx]; 1171 1172 /* 1173 * Copy the mbuf data into a contiguous buffer, leaving two 1174 * bytes at the beginning to hold the frame length. 1175 */ 1176 if (sc->axe_flags & AX178 || sc->axe_flags & AX772) { 1177 boundary = (sc->axe_udev->speed == USB_SPEED_HIGH) ? 512 : 64; 1178 1179 hdr.len = htole16(m->m_pkthdr.len); 1180 hdr.ilen = ~hdr.len; 1181 1182 memcpy(c->axe_buf, &hdr, sizeof(hdr)); 1183 length = sizeof(hdr); 1184 1185 m_copydata(m, 0, m->m_pkthdr.len, c->axe_buf + length); 1186 length += m->m_pkthdr.len; 1187 1188 if ((length % boundary) == 0) { 1189 hdr.len = 0x0000; 1190 hdr.ilen = 0xffff; 1191 memcpy(c->axe_buf + length, &hdr, sizeof(hdr)); 1192 length += sizeof(hdr); 1193 } 1194 } else { 1195 m_copydata(m, 0, m->m_pkthdr.len, c->axe_buf); 1196 length = m->m_pkthdr.len; 1197 } 1198 c->axe_mbuf = m; 1199 1200 usbd_setup_xfer(c->axe_xfer, sc->axe_ep[AXE_ENDPT_TX], 1201 c, c->axe_buf, length, USBD_FORCE_SHORT_XFER | USBD_NO_COPY, 10000, 1202 axe_txeof); 1203 1204 /* Transmit */ 1205 err = usbd_transfer(c->axe_xfer); 1206 if (err != USBD_IN_PROGRESS) { 1207 axe_stop(ifp, 0); 1208 return EIO; 1209 } 1210 1211 sc->axe_cdata.axe_tx_cnt++; 1212 1213 return 0; 1214 } 1215 1216 static void 1217 axe_start(struct ifnet *ifp) 1218 { 1219 struct axe_softc *sc; 1220 struct mbuf *m_head = NULL; 1221 1222 sc = ifp->if_softc; 1223 1224 if ((sc->axe_flags & AXE_MII) != 0 && sc->axe_link == 0) 1225 return; 1226 1227 if ((ifp->if_flags & (IFF_OACTIVE|IFF_RUNNING)) != IFF_RUNNING) 1228 return; 1229 1230 IFQ_POLL(&ifp->if_snd, m_head); 1231 if (m_head == NULL) { 1232 return; 1233 } 1234 1235 if (axe_encap(sc, m_head, 0)) { 1236 ifp->if_flags |= IFF_OACTIVE; 1237 return; 1238 } 1239 IFQ_DEQUEUE(&ifp->if_snd, m_head); 1240 1241 /* 1242 * If there's a BPF listener, bounce a copy of this frame 1243 * to him. 1244 */ 1245 bpf_mtap(ifp, m_head); 1246 1247 ifp->if_flags |= IFF_OACTIVE; 1248 1249 /* 1250 * Set a timeout in case the chip goes out to lunch. 1251 */ 1252 ifp->if_timer = 5; 1253 1254 return; 1255 } 1256 1257 static int 1258 axe_init(struct ifnet *ifp) 1259 { 1260 struct axe_softc *sc = ifp->if_softc; 1261 struct axe_chain *c; 1262 usbd_status err; 1263 int rxmode; 1264 int i, s; 1265 uint8_t eaddr[ETHER_ADDR_LEN]; 1266 1267 s = splnet(); 1268 1269 if (ifp->if_flags & IFF_RUNNING) 1270 axe_stop(ifp, 0); 1271 1272 /* 1273 * Cancel pending I/O and free all RX/TX buffers. 1274 */ 1275 axe_reset(sc); 1276 1277 /* Set MAC address */ 1278 if (sc->axe_flags & AX178 || sc->axe_flags & AX772) { 1279 memcpy(eaddr, CLLADDR(ifp->if_sadl), sizeof(eaddr)); 1280 axe_lock_mii(sc); 1281 axe_cmd(sc, AXE_178_CMD_WRITE_NODEID, 0, 0, eaddr); 1282 axe_unlock_mii(sc); 1283 } 1284 1285 /* Enable RX logic. */ 1286 1287 /* Init RX ring. */ 1288 if (axe_rx_list_init(sc) == ENOBUFS) { 1289 aprint_error_dev(sc->axe_dev, "rx list init failed\n"); 1290 splx(s); 1291 return ENOBUFS; 1292 } 1293 1294 /* Init TX ring. */ 1295 if (axe_tx_list_init(sc) == ENOBUFS) { 1296 aprint_error_dev(sc->axe_dev, "tx list init failed\n"); 1297 splx(s); 1298 return ENOBUFS; 1299 } 1300 1301 /* Set transmitter IPG values */ 1302 axe_lock_mii(sc); 1303 if (sc->axe_flags & AX178 || sc->axe_flags & AX772) 1304 axe_cmd(sc, AXE_178_CMD_WRITE_IPG012, sc->axe_ipgs[2], 1305 (sc->axe_ipgs[1] << 8) | (sc->axe_ipgs[0]), NULL); 1306 else { 1307 axe_cmd(sc, AXE_172_CMD_WRITE_IPG0, 0, sc->axe_ipgs[0], NULL); 1308 axe_cmd(sc, AXE_172_CMD_WRITE_IPG1, 0, sc->axe_ipgs[1], NULL); 1309 axe_cmd(sc, AXE_172_CMD_WRITE_IPG2, 0, sc->axe_ipgs[2], NULL); 1310 } 1311 1312 /* Enable receiver, set RX mode */ 1313 rxmode = AXE_RXCMD_BROADCAST | AXE_RXCMD_MULTICAST | AXE_RXCMD_ENABLE; 1314 if (sc->axe_flags & AX178 || sc->axe_flags & AX772) { 1315 if (sc->axe_udev->speed == USB_SPEED_HIGH) { 1316 /* Largest possible USB buffer size for AX88178 */ 1317 rxmode |= AXE_178_RXCMD_MFB; 1318 } 1319 } else 1320 rxmode |= AXE_172_RXCMD_UNICAST; 1321 1322 /* If we want promiscuous mode, set the allframes bit. */ 1323 if (ifp->if_flags & IFF_PROMISC) 1324 rxmode |= AXE_RXCMD_PROMISC; 1325 1326 if (ifp->if_flags & IFF_BROADCAST) 1327 rxmode |= AXE_RXCMD_BROADCAST; 1328 1329 axe_cmd(sc, AXE_CMD_RXCTL_WRITE, 0, rxmode, NULL); 1330 axe_unlock_mii(sc); 1331 1332 /* Load the multicast filter. */ 1333 axe_setmulti(sc); 1334 1335 /* Open RX and TX pipes. */ 1336 err = usbd_open_pipe(sc->axe_iface, sc->axe_ed[AXE_ENDPT_RX], 1337 USBD_EXCLUSIVE_USE, &sc->axe_ep[AXE_ENDPT_RX]); 1338 if (err) { 1339 aprint_error_dev(sc->axe_dev, "open rx pipe failed: %s\n", 1340 usbd_errstr(err)); 1341 splx(s); 1342 return EIO; 1343 } 1344 1345 err = usbd_open_pipe(sc->axe_iface, sc->axe_ed[AXE_ENDPT_TX], 1346 USBD_EXCLUSIVE_USE, &sc->axe_ep[AXE_ENDPT_TX]); 1347 if (err) { 1348 aprint_error_dev(sc->axe_dev, "open tx pipe failed: %s\n", 1349 usbd_errstr(err)); 1350 splx(s); 1351 return EIO; 1352 } 1353 1354 /* Start up the receive pipe. */ 1355 for (i = 0; i < AXE_RX_LIST_CNT; i++) { 1356 c = &sc->axe_cdata.axe_rx_chain[i]; 1357 usbd_setup_xfer(c->axe_xfer, sc->axe_ep[AXE_ENDPT_RX], 1358 c, c->axe_buf, sc->axe_bufsz, 1359 USBD_SHORT_XFER_OK | USBD_NO_COPY, USBD_NO_TIMEOUT, 1360 axe_rxeof); 1361 usbd_transfer(c->axe_xfer); 1362 } 1363 1364 ifp->if_flags |= IFF_RUNNING; 1365 ifp->if_flags &= ~IFF_OACTIVE; 1366 1367 splx(s); 1368 1369 callout_schedule(&sc->axe_stat_ch, hz); 1370 return 0; 1371 } 1372 1373 static int 1374 axe_ioctl(struct ifnet *ifp, u_long cmd, void *data) 1375 { 1376 struct axe_softc *sc = ifp->if_softc; 1377 int s; 1378 int error = 0; 1379 1380 s = splnet(); 1381 1382 switch(cmd) { 1383 case SIOCSIFFLAGS: 1384 if ((error = ifioctl_common(ifp, cmd, data)) != 0) 1385 break; 1386 1387 switch (ifp->if_flags & (IFF_UP | IFF_RUNNING)) { 1388 case IFF_RUNNING: 1389 axe_stop(ifp, 1); 1390 break; 1391 case IFF_UP: 1392 axe_init(ifp); 1393 break; 1394 case IFF_UP | IFF_RUNNING: 1395 if ((ifp->if_flags ^ sc->axe_if_flags) == IFF_PROMISC) 1396 axe_setmulti(sc); 1397 else 1398 axe_init(ifp); 1399 break; 1400 } 1401 sc->axe_if_flags = ifp->if_flags; 1402 break; 1403 1404 default: 1405 if ((error = ether_ioctl(ifp, cmd, data)) != ENETRESET) 1406 break; 1407 1408 error = 0; 1409 1410 if (cmd == SIOCADDMULTI || cmd == SIOCDELMULTI) 1411 axe_setmulti(sc); 1412 1413 } 1414 splx(s); 1415 1416 return error; 1417 } 1418 1419 static void 1420 axe_watchdog(struct ifnet *ifp) 1421 { 1422 struct axe_softc *sc; 1423 struct axe_chain *c; 1424 usbd_status stat; 1425 int s; 1426 1427 sc = ifp->if_softc; 1428 1429 ifp->if_oerrors++; 1430 aprint_error_dev(sc->axe_dev, "watchdog timeout\n"); 1431 1432 s = splusb(); 1433 c = &sc->axe_cdata.axe_tx_chain[0]; 1434 usbd_get_xfer_status(c->axe_xfer, NULL, NULL, NULL, &stat); 1435 axe_txeof(c->axe_xfer, c, stat); 1436 1437 if (!IFQ_IS_EMPTY(&ifp->if_snd)) 1438 axe_start(ifp); 1439 splx(s); 1440 } 1441 1442 /* 1443 * Stop the adapter and free any mbufs allocated to the 1444 * RX and TX lists. 1445 */ 1446 static void 1447 axe_stop(struct ifnet *ifp, int disable) 1448 { 1449 struct axe_softc *sc = ifp->if_softc; 1450 usbd_status err; 1451 int i; 1452 1453 axe_reset(sc); 1454 1455 ifp->if_timer = 0; 1456 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); 1457 1458 callout_stop(&(sc->axe_stat_ch)); 1459 1460 /* Stop transfers. */ 1461 if (sc->axe_ep[AXE_ENDPT_RX] != NULL) { 1462 err = usbd_abort_pipe(sc->axe_ep[AXE_ENDPT_RX]); 1463 if (err) { 1464 aprint_error_dev(sc->axe_dev, 1465 "abort rx pipe failed: %s\n", usbd_errstr(err)); 1466 } 1467 err = usbd_close_pipe(sc->axe_ep[AXE_ENDPT_RX]); 1468 if (err) { 1469 aprint_error_dev(sc->axe_dev, 1470 "close rx pipe failed: %s\n", usbd_errstr(err)); 1471 } 1472 sc->axe_ep[AXE_ENDPT_RX] = NULL; 1473 } 1474 1475 if (sc->axe_ep[AXE_ENDPT_TX] != NULL) { 1476 err = usbd_abort_pipe(sc->axe_ep[AXE_ENDPT_TX]); 1477 if (err) { 1478 aprint_error_dev(sc->axe_dev, 1479 "abort tx pipe failed: %s\n", usbd_errstr(err)); 1480 } 1481 err = usbd_close_pipe(sc->axe_ep[AXE_ENDPT_TX]); 1482 if (err) { 1483 aprint_error_dev(sc->axe_dev, 1484 "close tx pipe failed: %s\n", usbd_errstr(err)); 1485 } 1486 sc->axe_ep[AXE_ENDPT_TX] = NULL; 1487 } 1488 1489 if (sc->axe_ep[AXE_ENDPT_INTR] != NULL) { 1490 err = usbd_abort_pipe(sc->axe_ep[AXE_ENDPT_INTR]); 1491 if (err) { 1492 aprint_error_dev(sc->axe_dev, 1493 "abort intr pipe failed: %s\n", usbd_errstr(err)); 1494 } 1495 err = usbd_close_pipe(sc->axe_ep[AXE_ENDPT_INTR]); 1496 if (err) { 1497 aprint_error_dev(sc->axe_dev, 1498 "close intr pipe failed: %s\n", usbd_errstr(err)); 1499 } 1500 sc->axe_ep[AXE_ENDPT_INTR] = NULL; 1501 } 1502 1503 /* Free RX resources. */ 1504 for (i = 0; i < AXE_RX_LIST_CNT; i++) { 1505 if (sc->axe_cdata.axe_rx_chain[i].axe_mbuf != NULL) { 1506 m_freem(sc->axe_cdata.axe_rx_chain[i].axe_mbuf); 1507 sc->axe_cdata.axe_rx_chain[i].axe_mbuf = NULL; 1508 } 1509 if (sc->axe_cdata.axe_rx_chain[i].axe_xfer != NULL) { 1510 usbd_free_xfer(sc->axe_cdata.axe_rx_chain[i].axe_xfer); 1511 sc->axe_cdata.axe_rx_chain[i].axe_xfer = NULL; 1512 } 1513 } 1514 1515 /* Free TX resources. */ 1516 for (i = 0; i < AXE_TX_LIST_CNT; i++) { 1517 if (sc->axe_cdata.axe_tx_chain[i].axe_mbuf != NULL) { 1518 m_freem(sc->axe_cdata.axe_tx_chain[i].axe_mbuf); 1519 sc->axe_cdata.axe_tx_chain[i].axe_mbuf = NULL; 1520 } 1521 if (sc->axe_cdata.axe_tx_chain[i].axe_xfer != NULL) { 1522 usbd_free_xfer(sc->axe_cdata.axe_tx_chain[i].axe_xfer); 1523 sc->axe_cdata.axe_tx_chain[i].axe_xfer = NULL; 1524 } 1525 } 1526 1527 sc->axe_link = 0; 1528 } 1529
Indexes created Wed Sep 24 05:09:52 GMT 2025