if_axe.c revision 215966
1/*- 2 * Copyright (c) 1997, 1998, 1999, 2000-2003 3 * Bill Paul <wpaul@windriver.com>. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by Bill Paul. 16 * 4. Neither the name of the author nor the names of any co-contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD 24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 30 * THE POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33#include <sys/cdefs.h> 34__FBSDID("$FreeBSD: head/sys/dev/usb/net/if_axe.c 215966 2010-11-28 01:16:37Z yongari $"); 35 36/* 37 * ASIX Electronics AX88172/AX88178/AX88778 USB 2.0 ethernet driver. 38 * Used in the LinkSys USB200M and various other adapters. 39 * 40 * Manuals available from: 41 * http://www.asix.com.tw/datasheet/mac/Ax88172.PDF 42 * Note: you need the manual for the AX88170 chip (USB 1.x ethernet 43 * controller) to find the definitions for the RX control register. 44 * http://www.asix.com.tw/datasheet/mac/Ax88170.PDF 45 * 46 * Written by Bill Paul <wpaul@windriver.com> 47 * Senior Engineer 48 * Wind River Systems 49 */ 50 51/* 52 * The AX88172 provides USB ethernet supports at 10 and 100Mbps. 53 * It uses an external PHY (reference designs use a RealTek chip), 54 * and has a 64-bit multicast hash filter. There is some information 55 * missing from the manual which one needs to know in order to make 56 * the chip function: 57 * 58 * - You must set bit 7 in the RX control register, otherwise the 59 * chip won't receive any packets. 60 * - You must initialize all 3 IPG registers, or you won't be able 61 * to send any packets. 62 * 63 * Note that this device appears to only support loading the station 64 * address via autload from the EEPROM (i.e. there's no way to manaully 65 * set it). 66 * 67 * (Adam Weinberger wanted me to name this driver if_gir.c.) 68 */ 69 70/* 71 * Ax88178 and Ax88772 support backported from the OpenBSD driver. 72 * 2007/02/12, J.R. Oldroyd, fbsd@opal.com 73 * 74 * Manual here: 75 * http://www.asix.com.tw/FrootAttach/datasheet/AX88178_datasheet_Rev10.pdf 76 * http://www.asix.com.tw/FrootAttach/datasheet/AX88772_datasheet_Rev10.pdf 77 */ 78 79#include <sys/stdint.h> 80#include <sys/stddef.h> 81#include <sys/param.h> 82#include <sys/queue.h> 83#include <sys/types.h> 84#include <sys/systm.h> 85#include <sys/kernel.h> 86#include <sys/bus.h> 87#include <sys/linker_set.h> 88#include <sys/module.h> 89#include <sys/lock.h> 90#include <sys/mutex.h> 91#include <sys/condvar.h> 92#include <sys/sysctl.h> 93#include <sys/sx.h> 94#include <sys/unistd.h> 95#include <sys/callout.h> 96#include <sys/malloc.h> 97#include <sys/priv.h> 98 99#include <dev/usb/usb.h> 100#include <dev/usb/usbdi.h> 101#include <dev/usb/usbdi_util.h> 102#include "usbdevs.h" 103 104#define USB_DEBUG_VAR axe_debug 105#include <dev/usb/usb_debug.h> 106#include <dev/usb/usb_process.h> 107 108#include <dev/usb/net/usb_ethernet.h> 109#include <dev/usb/net/if_axereg.h> 110 111/* 112 * AXE_178_MAX_FRAME_BURST 113 * max frame burst size for Ax88178 and Ax88772 114 * 0 2048 bytes 115 * 1 4096 bytes 116 * 2 8192 bytes 117 * 3 16384 bytes 118 * use the largest your system can handle without USB stalling. 119 * 120 * NB: 88772 parts appear to generate lots of input errors with 121 * a 2K rx buffer and 8K is only slightly faster than 4K on an 122 * EHCI port on a T42 so change at your own risk. 123 */ 124#define AXE_178_MAX_FRAME_BURST 1 125 126#ifdef USB_DEBUG 127static int axe_debug = 0; 128 129SYSCTL_NODE(_hw_usb, OID_AUTO, axe, CTLFLAG_RW, 0, "USB axe"); 130SYSCTL_INT(_hw_usb_axe, OID_AUTO, debug, CTLFLAG_RW, &axe_debug, 0, 131 "Debug level"); 132#endif 133 134/* 135 * Various supported device vendors/products. 136 */ 137static const struct usb_device_id axe_devs[] = { 138#define AXE_DEV(v,p,i) { USB_VPI(USB_VENDOR_##v, USB_PRODUCT_##v##_##p, i) } 139 AXE_DEV(ABOCOM, UF200, 0), 140 AXE_DEV(ACERCM, EP1427X2, 0), 141 AXE_DEV(APPLE, ETHERNET, AXE_FLAG_772), 142 AXE_DEV(ASIX, AX88172, 0), 143 AXE_DEV(ASIX, AX88178, AXE_FLAG_178), 144 AXE_DEV(ASIX, AX88772, AXE_FLAG_772), 145 AXE_DEV(ASIX, AX88772A, AXE_FLAG_772), 146 AXE_DEV(ATEN, UC210T, 0), 147 AXE_DEV(BELKIN, F5D5055, AXE_FLAG_178), 148 AXE_DEV(BILLIONTON, USB2AR, 0), 149 AXE_DEV(CISCOLINKSYS, USB200MV2, AXE_FLAG_772), 150 AXE_DEV(COREGA, FETHER_USB2_TX, 0), 151 AXE_DEV(DLINK, DUBE100, 0), 152 AXE_DEV(DLINK, DUBE100B1, AXE_FLAG_772), 153 AXE_DEV(GOODWAY, GWUSB2E, 0), 154 AXE_DEV(IODATA, ETGUS2, AXE_FLAG_178), 155 AXE_DEV(JVC, MP_PRX1, 0), 156 AXE_DEV(LINKSYS2, USB200M, 0), 157 AXE_DEV(LINKSYS4, USB1000, AXE_FLAG_178), 158 AXE_DEV(LOGITEC, LAN_GTJU2A, AXE_FLAG_178), 159 AXE_DEV(MELCO, LUAU2KTX, 0), 160 AXE_DEV(MELCO, LUA3U2AGT, AXE_FLAG_178), 161 AXE_DEV(NETGEAR, FA120, 0), 162 AXE_DEV(OQO, ETHER01PLUS, AXE_FLAG_772), 163 AXE_DEV(PLANEX3, GU1000T, AXE_FLAG_178), 164 AXE_DEV(SITECOM, LN029, 0), 165 AXE_DEV(SITECOMEU, LN028, AXE_FLAG_178), 166 AXE_DEV(SYSTEMTALKS, SGCX2UL, 0), 167#undef AXE_DEV 168}; 169 170static device_probe_t axe_probe; 171static device_attach_t axe_attach; 172static device_detach_t axe_detach; 173 174static usb_callback_t axe_bulk_read_callback; 175static usb_callback_t axe_bulk_write_callback; 176 177static miibus_readreg_t axe_miibus_readreg; 178static miibus_writereg_t axe_miibus_writereg; 179static miibus_statchg_t axe_miibus_statchg; 180 181static uether_fn_t axe_attach_post; 182static uether_fn_t axe_init; 183static uether_fn_t axe_stop; 184static uether_fn_t axe_start; 185static uether_fn_t axe_tick; 186static uether_fn_t axe_setmulti; 187static uether_fn_t axe_setpromisc; 188 189static int axe_ifmedia_upd(struct ifnet *); 190static void axe_ifmedia_sts(struct ifnet *, struct ifmediareq *); 191static int axe_cmd(struct axe_softc *, int, int, int, void *); 192static void axe_ax88178_init(struct axe_softc *); 193static void axe_ax88772_init(struct axe_softc *); 194static int axe_get_phyno(struct axe_softc *, int); 195 196static const struct usb_config axe_config[AXE_N_TRANSFER] = { 197 198 [AXE_BULK_DT_WR] = { 199 .type = UE_BULK, 200 .endpoint = UE_ADDR_ANY, 201 .direction = UE_DIR_OUT, 202 .bufsize = AXE_BULK_BUF_SIZE, 203 .flags = {.pipe_bof = 1,.force_short_xfer = 1,}, 204 .callback = axe_bulk_write_callback, 205 .timeout = 10000, /* 10 seconds */ 206 }, 207 208 [AXE_BULK_DT_RD] = { 209 .type = UE_BULK, 210 .endpoint = UE_ADDR_ANY, 211 .direction = UE_DIR_IN, 212 .bufsize = 16384, /* bytes */ 213 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 214 .callback = axe_bulk_read_callback, 215 .timeout = 0, /* no timeout */ 216 }, 217}; 218 219static device_method_t axe_methods[] = { 220 /* Device interface */ 221 DEVMETHOD(device_probe, axe_probe), 222 DEVMETHOD(device_attach, axe_attach), 223 DEVMETHOD(device_detach, axe_detach), 224 225 /* bus interface */ 226 DEVMETHOD(bus_print_child, bus_generic_print_child), 227 DEVMETHOD(bus_driver_added, bus_generic_driver_added), 228 229 /* MII interface */ 230 DEVMETHOD(miibus_readreg, axe_miibus_readreg), 231 DEVMETHOD(miibus_writereg, axe_miibus_writereg), 232 DEVMETHOD(miibus_statchg, axe_miibus_statchg), 233 234 {0, 0} 235}; 236 237static driver_t axe_driver = { 238 .name = "axe", 239 .methods = axe_methods, 240 .size = sizeof(struct axe_softc), 241}; 242 243static devclass_t axe_devclass; 244 245DRIVER_MODULE(axe, uhub, axe_driver, axe_devclass, NULL, 0); 246DRIVER_MODULE(miibus, axe, miibus_driver, miibus_devclass, 0, 0); 247MODULE_DEPEND(axe, uether, 1, 1, 1); 248MODULE_DEPEND(axe, usb, 1, 1, 1); 249MODULE_DEPEND(axe, ether, 1, 1, 1); 250MODULE_DEPEND(axe, miibus, 1, 1, 1); 251MODULE_VERSION(axe, 1); 252 253static const struct usb_ether_methods axe_ue_methods = { 254 .ue_attach_post = axe_attach_post, 255 .ue_start = axe_start, 256 .ue_init = axe_init, 257 .ue_stop = axe_stop, 258 .ue_tick = axe_tick, 259 .ue_setmulti = axe_setmulti, 260 .ue_setpromisc = axe_setpromisc, 261 .ue_mii_upd = axe_ifmedia_upd, 262 .ue_mii_sts = axe_ifmedia_sts, 263}; 264 265static int 266axe_cmd(struct axe_softc *sc, int cmd, int index, int val, void *buf) 267{ 268 struct usb_device_request req; 269 usb_error_t err; 270 271 AXE_LOCK_ASSERT(sc, MA_OWNED); 272 273 req.bmRequestType = (AXE_CMD_IS_WRITE(cmd) ? 274 UT_WRITE_VENDOR_DEVICE : 275 UT_READ_VENDOR_DEVICE); 276 req.bRequest = AXE_CMD_CMD(cmd); 277 USETW(req.wValue, val); 278 USETW(req.wIndex, index); 279 USETW(req.wLength, AXE_CMD_LEN(cmd)); 280 281 err = uether_do_request(&sc->sc_ue, &req, buf, 1000); 282 283 return (err); 284} 285 286static int 287axe_miibus_readreg(device_t dev, int phy, int reg) 288{ 289 struct axe_softc *sc = device_get_softc(dev); 290 uint16_t val; 291 int locked; 292 293 if (sc->sc_phyno != phy) 294 return (0); 295 296 locked = mtx_owned(&sc->sc_mtx); 297 if (!locked) 298 AXE_LOCK(sc); 299 300 axe_cmd(sc, AXE_CMD_MII_OPMODE_SW, 0, 0, NULL); 301 axe_cmd(sc, AXE_CMD_MII_READ_REG, reg, phy, &val); 302 axe_cmd(sc, AXE_CMD_MII_OPMODE_HW, 0, 0, NULL); 303 304 val = le16toh(val); 305 if ((sc->sc_flags & AXE_FLAG_772) != 0 && reg == MII_BMSR) { 306 /* 307 * BMSR of AX88772 indicates that it supports extended 308 * capability but the extended status register is 309 * revered for embedded ethernet PHY. So clear the 310 * extended capability bit of BMSR. 311 */ 312 val &= ~BMSR_EXTCAP; 313 } 314 315 if (!locked) 316 AXE_UNLOCK(sc); 317 return (val); 318} 319 320static int 321axe_miibus_writereg(device_t dev, int phy, int reg, int val) 322{ 323 struct axe_softc *sc = device_get_softc(dev); 324 int locked; 325 326 val = htole32(val); 327 328 if (sc->sc_phyno != phy) 329 return (0); 330 331 locked = mtx_owned(&sc->sc_mtx); 332 if (!locked) 333 AXE_LOCK(sc); 334 335 axe_cmd(sc, AXE_CMD_MII_OPMODE_SW, 0, 0, NULL); 336 axe_cmd(sc, AXE_CMD_MII_WRITE_REG, reg, phy, &val); 337 axe_cmd(sc, AXE_CMD_MII_OPMODE_HW, 0, 0, NULL); 338 339 if (!locked) 340 AXE_UNLOCK(sc); 341 return (0); 342} 343 344static void 345axe_miibus_statchg(device_t dev) 346{ 347 struct axe_softc *sc = device_get_softc(dev); 348 struct mii_data *mii = GET_MII(sc); 349 struct ifnet *ifp; 350 uint16_t val; 351 int err, locked; 352 353 locked = mtx_owned(&sc->sc_mtx); 354 if (!locked) 355 AXE_LOCK(sc); 356 357 ifp = uether_getifp(&sc->sc_ue); 358 if (mii == NULL || ifp == NULL || 359 (ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) 360 goto done; 361 362 sc->sc_flags &= ~AXE_FLAG_LINK; 363 if ((mii->mii_media_status & (IFM_ACTIVE | IFM_AVALID)) == 364 (IFM_ACTIVE | IFM_AVALID)) { 365 switch (IFM_SUBTYPE(mii->mii_media_active)) { 366 case IFM_10_T: 367 case IFM_100_TX: 368 sc->sc_flags |= AXE_FLAG_LINK; 369 break; 370 case IFM_1000_T: 371 if ((sc->sc_flags & AXE_FLAG_178) == 0) 372 break; 373 sc->sc_flags |= AXE_FLAG_LINK; 374 break; 375 default: 376 break; 377 } 378 } 379 380 /* Lost link, do nothing. */ 381 if ((sc->sc_flags & AXE_FLAG_LINK) == 0) 382 goto done; 383 384 val = 0; 385 if ((IFM_OPTIONS(mii->mii_media_active) & IFM_FDX) != 0) 386 val |= AXE_MEDIA_FULL_DUPLEX; 387 if (sc->sc_flags & (AXE_FLAG_178 | AXE_FLAG_772)) { 388 val |= AXE_178_MEDIA_RX_EN | AXE_178_MEDIA_MAGIC; 389 if ((sc->sc_flags & AXE_FLAG_178) != 0) 390 val |= AXE_178_MEDIA_ENCK; 391 switch (IFM_SUBTYPE(mii->mii_media_active)) { 392 case IFM_1000_T: 393 val |= AXE_178_MEDIA_GMII | AXE_178_MEDIA_ENCK; 394 break; 395 case IFM_100_TX: 396 val |= AXE_178_MEDIA_100TX; 397 break; 398 case IFM_10_T: 399 /* doesn't need to be handled */ 400 break; 401 } 402 } 403 err = axe_cmd(sc, AXE_CMD_WRITE_MEDIA, 0, val, NULL); 404 if (err) 405 device_printf(dev, "media change failed, error %d\n", err); 406done: 407 if (!locked) 408 AXE_UNLOCK(sc); 409} 410 411/* 412 * Set media options. 413 */ 414static int 415axe_ifmedia_upd(struct ifnet *ifp) 416{ 417 struct axe_softc *sc = ifp->if_softc; 418 struct mii_data *mii = GET_MII(sc); 419 int error; 420 421 AXE_LOCK_ASSERT(sc, MA_OWNED); 422 423 if (mii->mii_instance) { 424 struct mii_softc *miisc; 425 426 LIST_FOREACH(miisc, &mii->mii_phys, mii_list) 427 mii_phy_reset(miisc); 428 } 429 error = mii_mediachg(mii); 430 return (error); 431} 432 433/* 434 * Report current media status. 435 */ 436static void 437axe_ifmedia_sts(struct ifnet *ifp, struct ifmediareq *ifmr) 438{ 439 struct axe_softc *sc = ifp->if_softc; 440 struct mii_data *mii = GET_MII(sc); 441 442 AXE_LOCK(sc); 443 mii_pollstat(mii); 444 AXE_UNLOCK(sc); 445 ifmr->ifm_active = mii->mii_media_active; 446 ifmr->ifm_status = mii->mii_media_status; 447} 448 449static void 450axe_setmulti(struct usb_ether *ue) 451{ 452 struct axe_softc *sc = uether_getsc(ue); 453 struct ifnet *ifp = uether_getifp(ue); 454 struct ifmultiaddr *ifma; 455 uint32_t h = 0; 456 uint16_t rxmode; 457 uint8_t hashtbl[8] = { 0, 0, 0, 0, 0, 0, 0, 0 }; 458 459 AXE_LOCK_ASSERT(sc, MA_OWNED); 460 461 axe_cmd(sc, AXE_CMD_RXCTL_READ, 0, 0, &rxmode); 462 rxmode = le16toh(rxmode); 463 464 if (ifp->if_flags & (IFF_ALLMULTI | IFF_PROMISC)) { 465 rxmode |= AXE_RXCMD_ALLMULTI; 466 axe_cmd(sc, AXE_CMD_RXCTL_WRITE, 0, rxmode, NULL); 467 return; 468 } 469 rxmode &= ~AXE_RXCMD_ALLMULTI; 470 471 if_maddr_rlock(ifp); 472 TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) 473 { 474 if (ifma->ifma_addr->sa_family != AF_LINK) 475 continue; 476 h = ether_crc32_be(LLADDR((struct sockaddr_dl *) 477 ifma->ifma_addr), ETHER_ADDR_LEN) >> 26; 478 hashtbl[h / 8] |= 1 << (h % 8); 479 } 480 if_maddr_runlock(ifp); 481 482 axe_cmd(sc, AXE_CMD_WRITE_MCAST, 0, 0, (void *)&hashtbl); 483 axe_cmd(sc, AXE_CMD_RXCTL_WRITE, 0, rxmode, NULL); 484} 485 486static int 487axe_get_phyno(struct axe_softc *sc, int sel) 488{ 489 int phyno; 490 491 switch (AXE_PHY_TYPE(sc->sc_phyaddrs[sel])) { 492 case PHY_TYPE_100_HOME: 493 case PHY_TYPE_GIG: 494 phyno = AXE_PHY_NO(sc->sc_phyaddrs[sel]); 495 break; 496 case PHY_TYPE_SPECIAL: 497 /* FALLTHROUGH */ 498 case PHY_TYPE_RSVD: 499 /* FALLTHROUGH */ 500 case PHY_TYPE_NON_SUP: 501 /* FALLTHROUGH */ 502 default: 503 phyno = -1; 504 break; 505 } 506 507 return (phyno); 508} 509 510#define AXE_GPIO_WRITE(x, y) do { \ 511 axe_cmd(sc, AXE_CMD_WRITE_GPIO, 0, (x), NULL); \ 512 uether_pause(ue, (y)); \ 513} while (0) 514 515static void 516axe_ax88178_init(struct axe_softc *sc) 517{ 518 struct usb_ether *ue; 519 int gpio0, phymode; 520 uint16_t eeprom, val; 521 522 ue = &sc->sc_ue; 523 axe_cmd(sc, AXE_CMD_SROM_WR_ENABLE, 0, 0, NULL); 524 /* XXX magic */ 525 axe_cmd(sc, AXE_CMD_SROM_READ, 0, 0x0017, &eeprom); 526 eeprom = le16toh(eeprom); 527 axe_cmd(sc, AXE_CMD_SROM_WR_DISABLE, 0, 0, NULL); 528 529 /* if EEPROM is invalid we have to use to GPIO0 */ 530 if (eeprom == 0xffff) { 531 phymode = AXE_PHY_MODE_MARVELL; 532 gpio0 = 1; 533 } else { 534 phymode = eeprom & 0x7f; 535 gpio0 = (eeprom & 0x80) ? 0 : 1; 536 } 537 538 if (bootverbose) 539 device_printf(sc->sc_ue.ue_dev, 540 "EEPROM data : 0x%04x, phymode : 0x%02x\n", eeprom, 541 phymode); 542 /* Program GPIOs depending on PHY hardware. */ 543 switch (phymode) { 544 case AXE_PHY_MODE_MARVELL: 545 if (gpio0 == 1) { 546 AXE_GPIO_WRITE(AXE_GPIO_RELOAD_EEPROM | AXE_GPIO0_EN, 547 hz / 32); 548 AXE_GPIO_WRITE(AXE_GPIO0_EN | AXE_GPIO2 | AXE_GPIO2_EN, 549 hz / 32); 550 AXE_GPIO_WRITE(AXE_GPIO0_EN | AXE_GPIO2_EN, hz / 4); 551 AXE_GPIO_WRITE(AXE_GPIO0_EN | AXE_GPIO2 | AXE_GPIO2_EN, 552 hz / 32); 553 } else 554 AXE_GPIO_WRITE(AXE_GPIO_RELOAD_EEPROM | AXE_GPIO1 | 555 AXE_GPIO1_EN, hz / 32); 556 break; 557 case AXE_PHY_MODE_CICADA: 558 case AXE_PHY_MODE_CICADA_V2: 559 case AXE_PHY_MODE_CICADA_V2_ASIX: 560 if (gpio0 == 1) 561 AXE_GPIO_WRITE(AXE_GPIO_RELOAD_EEPROM | AXE_GPIO0 | 562 AXE_GPIO0_EN, hz / 32); 563 else 564 AXE_GPIO_WRITE(AXE_GPIO_RELOAD_EEPROM | AXE_GPIO1 | 565 AXE_GPIO1_EN, hz / 32); 566 break; 567 case AXE_PHY_MODE_AGERE: 568 AXE_GPIO_WRITE(AXE_GPIO_RELOAD_EEPROM | AXE_GPIO1 | 569 AXE_GPIO1_EN, hz / 32); 570 AXE_GPIO_WRITE(AXE_GPIO1 | AXE_GPIO1_EN | AXE_GPIO2 | 571 AXE_GPIO2_EN, hz / 32); 572 AXE_GPIO_WRITE(AXE_GPIO1 | AXE_GPIO1_EN | AXE_GPIO2_EN, hz / 4); 573 AXE_GPIO_WRITE(AXE_GPIO1 | AXE_GPIO1_EN | AXE_GPIO2 | 574 AXE_GPIO2_EN, hz / 32); 575 break; 576 case AXE_PHY_MODE_REALTEK_8211CL: 577 case AXE_PHY_MODE_REALTEK_8211BN: 578 case AXE_PHY_MODE_REALTEK_8251CL: 579 val = gpio0 == 1 ? AXE_GPIO0 | AXE_GPIO0_EN : 580 AXE_GPIO1 | AXE_GPIO1_EN; 581 AXE_GPIO_WRITE(val, hz / 32); 582 AXE_GPIO_WRITE(val | AXE_GPIO2 | AXE_GPIO2_EN, hz / 32); 583 AXE_GPIO_WRITE(val | AXE_GPIO2_EN, hz / 4); 584 AXE_GPIO_WRITE(val | AXE_GPIO2 | AXE_GPIO2_EN, hz / 32); 585 if (phymode == AXE_PHY_MODE_REALTEK_8211CL) { 586 axe_miibus_writereg(ue->ue_dev, sc->sc_phyno, 587 0x1F, 0x0005); 588 axe_miibus_writereg(ue->ue_dev, sc->sc_phyno, 589 0x0C, 0x0000); 590 val = axe_miibus_readreg(ue->ue_dev, sc->sc_phyno, 591 0x0001); 592 axe_miibus_writereg(ue->ue_dev, sc->sc_phyno, 593 0x01, val | 0x0080); 594 axe_miibus_writereg(ue->ue_dev, sc->sc_phyno, 595 0x1F, 0x0000); 596 } 597 break; 598 default: 599 /* Unknown PHY model or no need to program GPIOs. */ 600 break; 601 } 602 603 /* soft reset */ 604 axe_cmd(sc, AXE_CMD_SW_RESET_REG, 0, AXE_SW_RESET_CLEAR, NULL); 605 uether_pause(ue, hz / 4); 606 607 axe_cmd(sc, AXE_CMD_SW_RESET_REG, 0, 608 AXE_SW_RESET_PRL | AXE_178_RESET_MAGIC, NULL); 609 uether_pause(ue, hz / 4); 610 /* Enable MII/GMII/RGMII interface to work with external PHY. */ 611 axe_cmd(sc, AXE_CMD_SW_PHY_SELECT, 0, 0, NULL); 612 uether_pause(ue, hz / 4); 613 614 axe_cmd(sc, AXE_CMD_RXCTL_WRITE, 0, 0, NULL); 615} 616#undef AXE_GPIO_WRITE 617 618static void 619axe_ax88772_init(struct axe_softc *sc) 620{ 621 axe_cmd(sc, AXE_CMD_WRITE_GPIO, 0, 0x00b0, NULL); 622 uether_pause(&sc->sc_ue, hz / 16); 623 624 if (sc->sc_phyno == AXE_772_PHY_NO_EPHY) { 625 /* ask for the embedded PHY */ 626 axe_cmd(sc, AXE_CMD_SW_PHY_SELECT, 0, 0x01, NULL); 627 uether_pause(&sc->sc_ue, hz / 64); 628 629 /* power down and reset state, pin reset state */ 630 axe_cmd(sc, AXE_CMD_SW_RESET_REG, 0, 631 AXE_SW_RESET_CLEAR, NULL); 632 uether_pause(&sc->sc_ue, hz / 16); 633 634 /* power down/reset state, pin operating state */ 635 axe_cmd(sc, AXE_CMD_SW_RESET_REG, 0, 636 AXE_SW_RESET_IPPD | AXE_SW_RESET_PRL, NULL); 637 uether_pause(&sc->sc_ue, hz / 4); 638 639 /* power up, reset */ 640 axe_cmd(sc, AXE_CMD_SW_RESET_REG, 0, AXE_SW_RESET_PRL, NULL); 641 642 /* power up, operating */ 643 axe_cmd(sc, AXE_CMD_SW_RESET_REG, 0, 644 AXE_SW_RESET_IPRL | AXE_SW_RESET_PRL, NULL); 645 } else { 646 /* ask for external PHY */ 647 axe_cmd(sc, AXE_CMD_SW_PHY_SELECT, 0, 0x00, NULL); 648 uether_pause(&sc->sc_ue, hz / 64); 649 650 /* power down internal PHY */ 651 axe_cmd(sc, AXE_CMD_SW_RESET_REG, 0, 652 AXE_SW_RESET_IPPD | AXE_SW_RESET_PRL, NULL); 653 } 654 655 uether_pause(&sc->sc_ue, hz / 4); 656 axe_cmd(sc, AXE_CMD_RXCTL_WRITE, 0, 0, NULL); 657} 658 659static void 660axe_reset(struct axe_softc *sc) 661{ 662 struct usb_config_descriptor *cd; 663 usb_error_t err; 664 665 cd = usbd_get_config_descriptor(sc->sc_ue.ue_udev); 666 667 err = usbd_req_set_config(sc->sc_ue.ue_udev, &sc->sc_mtx, 668 cd->bConfigurationValue); 669 if (err) 670 DPRINTF("reset failed (ignored)\n"); 671 672 /* Wait a little while for the chip to get its brains in order. */ 673 uether_pause(&sc->sc_ue, hz / 100); 674 675 /* Reinitialize controller to achieve full reset. */ 676 if (sc->sc_flags & AXE_FLAG_178) 677 axe_ax88178_init(sc); 678 else if (sc->sc_flags & AXE_FLAG_772) 679 axe_ax88772_init(sc); 680} 681 682static void 683axe_attach_post(struct usb_ether *ue) 684{ 685 struct axe_softc *sc = uether_getsc(ue); 686 687 /* 688 * Load PHY indexes first. Needed by axe_xxx_init(). 689 */ 690 axe_cmd(sc, AXE_CMD_READ_PHYID, 0, 0, sc->sc_phyaddrs); 691 if (bootverbose) 692 device_printf(sc->sc_ue.ue_dev, "PHYADDR 0x%02x:0x%02x\n", 693 sc->sc_phyaddrs[0], sc->sc_phyaddrs[1]); 694 sc->sc_phyno = axe_get_phyno(sc, AXE_PHY_SEL_PRI); 695 if (sc->sc_phyno == -1) 696 sc->sc_phyno = axe_get_phyno(sc, AXE_PHY_SEL_SEC); 697 if (sc->sc_phyno == -1) { 698 device_printf(sc->sc_ue.ue_dev, 699 "no valid PHY address found, assuming PHY address 0\n"); 700 sc->sc_phyno = 0; 701 } 702 703 if (sc->sc_flags & AXE_FLAG_178) 704 axe_ax88178_init(sc); 705 else if (sc->sc_flags & AXE_FLAG_772) 706 axe_ax88772_init(sc); 707 708 /* 709 * Get station address. 710 */ 711 if (sc->sc_flags & (AXE_FLAG_178 | AXE_FLAG_772)) 712 axe_cmd(sc, AXE_178_CMD_READ_NODEID, 0, 0, ue->ue_eaddr); 713 else 714 axe_cmd(sc, AXE_172_CMD_READ_NODEID, 0, 0, ue->ue_eaddr); 715 716 /* 717 * Fetch IPG values. 718 */ 719 axe_cmd(sc, AXE_CMD_READ_IPG012, 0, 0, sc->sc_ipgs); 720} 721 722/* 723 * Probe for a AX88172 chip. 724 */ 725static int 726axe_probe(device_t dev) 727{ 728 struct usb_attach_arg *uaa = device_get_ivars(dev); 729 730 if (uaa->usb_mode != USB_MODE_HOST) 731 return (ENXIO); 732 if (uaa->info.bConfigIndex != AXE_CONFIG_IDX) 733 return (ENXIO); 734 if (uaa->info.bIfaceIndex != AXE_IFACE_IDX) 735 return (ENXIO); 736 737 return (usbd_lookup_id_by_uaa(axe_devs, sizeof(axe_devs), uaa)); 738} 739 740/* 741 * Attach the interface. Allocate softc structures, do ifmedia 742 * setup and ethernet/BPF attach. 743 */ 744static int 745axe_attach(device_t dev) 746{ 747 struct usb_attach_arg *uaa = device_get_ivars(dev); 748 struct axe_softc *sc = device_get_softc(dev); 749 struct usb_ether *ue = &sc->sc_ue; 750 uint8_t iface_index; 751 int error; 752 753 sc->sc_flags = USB_GET_DRIVER_INFO(uaa); 754 755 device_set_usb_desc(dev); 756 757 mtx_init(&sc->sc_mtx, device_get_nameunit(dev), NULL, MTX_DEF); 758 759 iface_index = AXE_IFACE_IDX; 760 error = usbd_transfer_setup(uaa->device, &iface_index, sc->sc_xfer, 761 axe_config, AXE_N_TRANSFER, sc, &sc->sc_mtx); 762 if (error) { 763 device_printf(dev, "allocating USB transfers failed\n"); 764 goto detach; 765 } 766 767 ue->ue_sc = sc; 768 ue->ue_dev = dev; 769 ue->ue_udev = uaa->device; 770 ue->ue_mtx = &sc->sc_mtx; 771 ue->ue_methods = &axe_ue_methods; 772 773 error = uether_ifattach(ue); 774 if (error) { 775 device_printf(dev, "could not attach interface\n"); 776 goto detach; 777 } 778 return (0); /* success */ 779 780detach: 781 axe_detach(dev); 782 return (ENXIO); /* failure */ 783} 784 785static int 786axe_detach(device_t dev) 787{ 788 struct axe_softc *sc = device_get_softc(dev); 789 struct usb_ether *ue = &sc->sc_ue; 790 791 usbd_transfer_unsetup(sc->sc_xfer, AXE_N_TRANSFER); 792 uether_ifdetach(ue); 793 mtx_destroy(&sc->sc_mtx); 794 795 return (0); 796} 797 798#if (AXE_BULK_BUF_SIZE >= 0x10000) 799#error "Please update axe_bulk_read_callback()!" 800#endif 801 802static void 803axe_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error) 804{ 805 struct axe_softc *sc = usbd_xfer_softc(xfer); 806 struct usb_ether *ue = &sc->sc_ue; 807 struct ifnet *ifp = uether_getifp(ue); 808 struct axe_sframe_hdr hdr; 809 struct usb_page_cache *pc; 810 int err, pos, len; 811 int actlen; 812 813 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL); 814 815 switch (USB_GET_STATE(xfer)) { 816 case USB_ST_TRANSFERRED: 817 pos = 0; 818 len = 0; 819 err = 0; 820 821 pc = usbd_xfer_get_frame(xfer, 0); 822 if (sc->sc_flags & (AXE_FLAG_772 | AXE_FLAG_178)) { 823 while (pos < actlen) { 824 if ((pos + sizeof(hdr)) > actlen) { 825 /* too little data */ 826 err = EINVAL; 827 break; 828 } 829 usbd_copy_out(pc, pos, &hdr, sizeof(hdr)); 830 831 if ((hdr.len ^ hdr.ilen) != 0xFFFF) { 832 /* we lost sync */ 833 err = EINVAL; 834 break; 835 } 836 pos += sizeof(hdr); 837 838 len = le16toh(hdr.len); 839 if ((pos + len) > actlen) { 840 /* invalid length */ 841 err = EINVAL; 842 break; 843 } 844 uether_rxbuf(ue, pc, pos, len); 845 846 pos += len + (len % 2); 847 } 848 } else 849 uether_rxbuf(ue, pc, 0, actlen); 850 851 if (err != 0) 852 ifp->if_ierrors++; 853 854 /* FALLTHROUGH */ 855 case USB_ST_SETUP: 856tr_setup: 857 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 858 usbd_transfer_submit(xfer); 859 uether_rxflush(ue); 860 return; 861 862 default: /* Error */ 863 DPRINTF("bulk read error, %s\n", usbd_errstr(error)); 864 865 if (error != USB_ERR_CANCELLED) { 866 /* try to clear stall first */ 867 usbd_xfer_set_stall(xfer); 868 goto tr_setup; 869 } 870 return; 871 872 } 873} 874 875#if ((AXE_BULK_BUF_SIZE >= 0x10000) || (AXE_BULK_BUF_SIZE < (MCLBYTES+4))) 876#error "Please update axe_bulk_write_callback()!" 877#endif 878 879static void 880axe_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error) 881{ 882 struct axe_softc *sc = usbd_xfer_softc(xfer); 883 struct axe_sframe_hdr hdr; 884 struct ifnet *ifp = uether_getifp(&sc->sc_ue); 885 struct usb_page_cache *pc; 886 struct mbuf *m; 887 int pos; 888 889 switch (USB_GET_STATE(xfer)) { 890 case USB_ST_TRANSFERRED: 891 DPRINTFN(11, "transfer complete\n"); 892 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 893 /* FALLTHROUGH */ 894 case USB_ST_SETUP: 895tr_setup: 896 if ((sc->sc_flags & AXE_FLAG_LINK) == 0 || 897 (ifp->if_drv_flags & IFF_DRV_OACTIVE) != 0) { 898 /* 899 * Don't send anything if there is no link or 900 * controller is busy. 901 */ 902 return; 903 } 904 pos = 0; 905 pc = usbd_xfer_get_frame(xfer, 0); 906 907 while (1) { 908 909 IFQ_DRV_DEQUEUE(&ifp->if_snd, m); 910 911 if (m == NULL) { 912 if (pos > 0) 913 break; /* send out data */ 914 return; 915 } 916 if (m->m_pkthdr.len > MCLBYTES) { 917 m->m_pkthdr.len = MCLBYTES; 918 } 919 if (sc->sc_flags & (AXE_FLAG_772 | AXE_FLAG_178)) { 920 921 hdr.len = htole16(m->m_pkthdr.len); 922 hdr.ilen = ~hdr.len; 923 924 usbd_copy_in(pc, pos, &hdr, sizeof(hdr)); 925 926 pos += sizeof(hdr); 927 928 /* 929 * NOTE: Some drivers force a short packet 930 * by appending a dummy header with zero 931 * length at then end of the USB transfer. 932 * This driver uses the 933 * USB_FORCE_SHORT_XFER flag instead. 934 */ 935 } 936 usbd_m_copy_in(pc, pos, m, 0, m->m_pkthdr.len); 937 pos += m->m_pkthdr.len; 938 939 /* 940 * XXX 941 * Update TX packet counter here. This is not 942 * correct way but it seems that there is no way 943 * to know how many packets are sent at the end 944 * of transfer because controller combines 945 * multiple writes into single one if there is 946 * room in TX buffer of controller. 947 */ 948 ifp->if_opackets++; 949 950 /* 951 * if there's a BPF listener, bounce a copy 952 * of this frame to him: 953 */ 954 BPF_MTAP(ifp, m); 955 956 m_freem(m); 957 958 if (sc->sc_flags & (AXE_FLAG_772 | AXE_FLAG_178)) { 959 if (pos > (AXE_BULK_BUF_SIZE - MCLBYTES - sizeof(hdr))) { 960 /* send out frame(s) */ 961 break; 962 } 963 } else { 964 /* send out frame */ 965 break; 966 } 967 } 968 969 usbd_xfer_set_frame_len(xfer, 0, pos); 970 usbd_transfer_submit(xfer); 971 ifp->if_drv_flags |= IFF_DRV_OACTIVE; 972 return; 973 974 default: /* Error */ 975 DPRINTFN(11, "transfer error, %s\n", 976 usbd_errstr(error)); 977 978 ifp->if_oerrors++; 979 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 980 981 if (error != USB_ERR_CANCELLED) { 982 /* try to clear stall first */ 983 usbd_xfer_set_stall(xfer); 984 goto tr_setup; 985 } 986 return; 987 988 } 989} 990 991static void 992axe_tick(struct usb_ether *ue) 993{ 994 struct axe_softc *sc = uether_getsc(ue); 995 struct mii_data *mii = GET_MII(sc); 996 997 AXE_LOCK_ASSERT(sc, MA_OWNED); 998 999 mii_tick(mii); 1000 if ((sc->sc_flags & AXE_FLAG_LINK) == 0) { 1001 axe_miibus_statchg(ue->ue_dev); 1002 if ((sc->sc_flags & AXE_FLAG_LINK) != 0) 1003 axe_start(ue); 1004 } 1005} 1006 1007static void 1008axe_start(struct usb_ether *ue) 1009{ 1010 struct axe_softc *sc = uether_getsc(ue); 1011 1012 /* 1013 * start the USB transfers, if not already started: 1014 */ 1015 usbd_transfer_start(sc->sc_xfer[AXE_BULK_DT_RD]); 1016 usbd_transfer_start(sc->sc_xfer[AXE_BULK_DT_WR]); 1017} 1018 1019static void 1020axe_init(struct usb_ether *ue) 1021{ 1022 struct axe_softc *sc = uether_getsc(ue); 1023 struct ifnet *ifp = uether_getifp(ue); 1024 uint16_t rxmode; 1025 1026 AXE_LOCK_ASSERT(sc, MA_OWNED); 1027 1028 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) != 0) 1029 return; 1030 1031 /* Cancel pending I/O */ 1032 axe_stop(ue); 1033 1034 axe_reset(sc); 1035 1036 /* Set MAC address. */ 1037 if (sc->sc_flags & (AXE_FLAG_178 | AXE_FLAG_772)) 1038 axe_cmd(sc, AXE_178_CMD_WRITE_NODEID, 0, 0, IF_LLADDR(ifp)); 1039 else 1040 axe_cmd(sc, AXE_172_CMD_WRITE_NODEID, 0, 0, IF_LLADDR(ifp)); 1041 1042 /* Set transmitter IPG values */ 1043 if (sc->sc_flags & (AXE_FLAG_178 | AXE_FLAG_772)) { 1044 axe_cmd(sc, AXE_178_CMD_WRITE_IPG012, sc->sc_ipgs[2], 1045 (sc->sc_ipgs[1] << 8) | (sc->sc_ipgs[0]), NULL); 1046 } else { 1047 axe_cmd(sc, AXE_172_CMD_WRITE_IPG0, 0, sc->sc_ipgs[0], NULL); 1048 axe_cmd(sc, AXE_172_CMD_WRITE_IPG1, 0, sc->sc_ipgs[1], NULL); 1049 axe_cmd(sc, AXE_172_CMD_WRITE_IPG2, 0, sc->sc_ipgs[2], NULL); 1050 } 1051 1052 /* Enable receiver, set RX mode */ 1053 rxmode = (AXE_RXCMD_MULTICAST | AXE_RXCMD_ENABLE); 1054 if (sc->sc_flags & (AXE_FLAG_178 | AXE_FLAG_772)) { 1055#if 0 1056 rxmode |= AXE_178_RXCMD_MFB_2048; /* chip default */ 1057#else 1058 /* 1059 * Default Rx buffer size is too small to get 1060 * maximum performance. 1061 */ 1062 rxmode |= AXE_178_RXCMD_MFB_16384; 1063#endif 1064 } else { 1065 rxmode |= AXE_172_RXCMD_UNICAST; 1066 } 1067 1068 /* If we want promiscuous mode, set the allframes bit. */ 1069 if (ifp->if_flags & IFF_PROMISC) 1070 rxmode |= AXE_RXCMD_PROMISC; 1071 1072 if (ifp->if_flags & IFF_BROADCAST) 1073 rxmode |= AXE_RXCMD_BROADCAST; 1074 1075 axe_cmd(sc, AXE_CMD_RXCTL_WRITE, 0, rxmode, NULL); 1076 1077 /* Load the multicast filter. */ 1078 axe_setmulti(ue); 1079 1080 usbd_xfer_set_stall(sc->sc_xfer[AXE_BULK_DT_WR]); 1081 1082 ifp->if_drv_flags |= IFF_DRV_RUNNING; 1083 /* Switch to selected media. */ 1084 axe_ifmedia_upd(ifp); 1085 axe_start(ue); 1086} 1087 1088static void 1089axe_setpromisc(struct usb_ether *ue) 1090{ 1091 struct axe_softc *sc = uether_getsc(ue); 1092 struct ifnet *ifp = uether_getifp(ue); 1093 uint16_t rxmode; 1094 1095 axe_cmd(sc, AXE_CMD_RXCTL_READ, 0, 0, &rxmode); 1096 1097 rxmode = le16toh(rxmode); 1098 1099 if (ifp->if_flags & IFF_PROMISC) { 1100 rxmode |= AXE_RXCMD_PROMISC; 1101 } else { 1102 rxmode &= ~AXE_RXCMD_PROMISC; 1103 } 1104 1105 axe_cmd(sc, AXE_CMD_RXCTL_WRITE, 0, rxmode, NULL); 1106 1107 axe_setmulti(ue); 1108} 1109 1110static void 1111axe_stop(struct usb_ether *ue) 1112{ 1113 struct axe_softc *sc = uether_getsc(ue); 1114 struct ifnet *ifp = uether_getifp(ue); 1115 1116 AXE_LOCK_ASSERT(sc, MA_OWNED); 1117 1118 ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE); 1119 sc->sc_flags &= ~AXE_FLAG_LINK; 1120 1121 /* 1122 * stop all the transfers, if not already stopped: 1123 */ 1124 usbd_transfer_stop(sc->sc_xfer[AXE_BULK_DT_WR]); 1125 usbd_transfer_stop(sc->sc_xfer[AXE_BULK_DT_RD]); 1126} 1127