1 /* $NetBSD: if_udav.c,v 1.2 2003/09/04 15:17:38 tsutsui Exp $ */ 2 /* $nabe: if_udav.c,v 1.3 2003/08/21 16:57:19 nabe Exp $ */ 3 /* $FreeBSD$ */ 4 /*- 5 * Copyright (c) 2003 6 * Shingo WATANABE <nabe@nabechan.org>. All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. 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 THE AUTHOR 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 THE AUTHOR OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 * 32 */ 33 34 /* 35 * DM9601(DAVICOM USB to Ethernet MAC Controller with Integrated 10/100 PHY) 36 * The spec can be found at the following url. 37 * http://www.davicom.com.tw/big5/download/Data%20Sheet/DM9601-DS-P01-930914.pdf 38 */ 39 40 /* 41 * TODO: 42 * Interrupt Endpoint support 43 * External PHYs 44 */ 45 46 #include <sys/stdint.h> 47 #include <sys/param.h> 48 #include <sys/queue.h> 49 #include <sys/types.h> 50 #include <sys/systm.h> 51 #include <sys/kernel.h> 52 #include <sys/bus.h> 53 #include <sys/module.h> 54 #include <sys/lock.h> 55 #include <sys/condvar.h> 56 #include <sys/sysctl.h> 57 #include <sys/unistd.h> 58 #include <sys/callout.h> 59 #include <sys/malloc.h> 60 #include <sys/priv.h> 61 62 #include <net/if.h> 63 #include <net/if_var.h> 64 #include <net/ifq_var.h> 65 66 #include <bus/u4b/usb.h> 67 #include <bus/u4b/usbdi.h> 68 #include <bus/u4b/usbdi_util.h> 69 #include "usbdevs.h" 70 71 #define USB_DEBUG_VAR udav_debug 72 #include <bus/u4b/usb_debug.h> 73 #include <bus/u4b/usb_process.h> 74 75 #include <bus/u4b/net/usb_ethernet.h> 76 #include <bus/u4b/net/if_udavreg.h> 77 78 /* prototypes */ 79 80 static device_probe_t udav_probe; 81 static device_attach_t udav_attach; 82 static device_detach_t udav_detach; 83 84 static usb_callback_t udav_bulk_write_callback; 85 static usb_callback_t udav_bulk_read_callback; 86 static usb_callback_t udav_intr_callback; 87 88 static uether_fn_t udav_attach_post; 89 static uether_fn_t udav_init; 90 static uether_fn_t udav_stop; 91 static uether_fn_t udav_start; 92 static uether_fn_t udav_tick; 93 static uether_fn_t udav_setmulti; 94 static uether_fn_t udav_setpromisc; 95 96 static int udav_csr_read(struct udav_softc *, uint16_t, void *, int); 97 static int udav_csr_write(struct udav_softc *, uint16_t, void *, int); 98 static uint8_t udav_csr_read1(struct udav_softc *, uint16_t); 99 static int udav_csr_write1(struct udav_softc *, uint16_t, uint8_t); 100 static void udav_reset(struct udav_softc *); 101 static int udav_ifmedia_upd(struct ifnet *); 102 static void udav_ifmedia_status(struct ifnet *, struct ifmediareq *); 103 104 static miibus_readreg_t udav_miibus_readreg; 105 static miibus_writereg_t udav_miibus_writereg; 106 static miibus_statchg_t udav_miibus_statchg; 107 108 static const struct usb_config udav_config[UDAV_N_TRANSFER] = { 109 110 [UDAV_BULK_DT_WR] = { 111 .type = UE_BULK, 112 .endpoint = UE_ADDR_ANY, 113 .direction = UE_DIR_OUT, 114 .bufsize = (MCLBYTES + 2), 115 .flags = {.pipe_bof = 1,.force_short_xfer = 1,}, 116 .callback = udav_bulk_write_callback, 117 .timeout = 10000, /* 10 seconds */ 118 }, 119 120 [UDAV_BULK_DT_RD] = { 121 .type = UE_BULK, 122 .endpoint = UE_ADDR_ANY, 123 .direction = UE_DIR_IN, 124 .bufsize = (MCLBYTES + 3), 125 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 126 .callback = udav_bulk_read_callback, 127 .timeout = 0, /* no timeout */ 128 }, 129 130 [UDAV_INTR_DT_RD] = { 131 .type = UE_INTERRUPT, 132 .endpoint = UE_ADDR_ANY, 133 .direction = UE_DIR_IN, 134 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 135 .bufsize = 0, /* use wMaxPacketSize */ 136 .callback = udav_intr_callback, 137 }, 138 }; 139 140 static device_method_t udav_methods[] = { 141 /* Device interface */ 142 DEVMETHOD(device_probe, udav_probe), 143 DEVMETHOD(device_attach, udav_attach), 144 DEVMETHOD(device_detach, udav_detach), 145 146 /* MII interface */ 147 DEVMETHOD(miibus_readreg, udav_miibus_readreg), 148 DEVMETHOD(miibus_writereg, udav_miibus_writereg), 149 DEVMETHOD(miibus_statchg, udav_miibus_statchg), 150 151 DEVMETHOD_END 152 }; 153 154 static driver_t udav_driver = { 155 .name = "udav", 156 .methods = udav_methods, 157 .size = sizeof(struct udav_softc), 158 }; 159 160 static devclass_t udav_devclass; 161 162 DRIVER_MODULE(udav, uhub, udav_driver, udav_devclass, NULL, NULL); 163 DRIVER_MODULE(miibus, udav, miibus_driver, miibus_devclass, NULL, NULL); 164 MODULE_DEPEND(udav, uether, 1, 1, 1); 165 MODULE_DEPEND(udav, usb, 1, 1, 1); 166 MODULE_DEPEND(udav, ether, 1, 1, 1); 167 MODULE_DEPEND(udav, miibus, 1, 1, 1); 168 MODULE_VERSION(udav, 1); 169 170 static const struct usb_ether_methods udav_ue_methods = { 171 .ue_attach_post = udav_attach_post, 172 .ue_start = udav_start, 173 .ue_init = udav_init, 174 .ue_stop = udav_stop, 175 .ue_tick = udav_tick, 176 .ue_setmulti = udav_setmulti, 177 .ue_setpromisc = udav_setpromisc, 178 .ue_mii_upd = udav_ifmedia_upd, 179 .ue_mii_sts = udav_ifmedia_status, 180 }; 181 182 static const struct usb_ether_methods udav_ue_methods_nophy = { 183 .ue_attach_post = udav_attach_post, 184 .ue_start = udav_start, 185 .ue_init = udav_init, 186 .ue_stop = udav_stop, 187 .ue_setmulti = udav_setmulti, 188 .ue_setpromisc = udav_setpromisc, 189 }; 190 191 #ifdef USB_DEBUG 192 static int udav_debug = 0; 193 194 static SYSCTL_NODE(_hw_usb, OID_AUTO, udav, CTLFLAG_RW, 0, "USB udav"); 195 SYSCTL_INT(_hw_usb_udav, OID_AUTO, debug, CTLFLAG_RW, &udav_debug, 0, 196 "Debug level"); 197 #endif 198 199 #define UDAV_SETBIT(sc, reg, x) \ 200 udav_csr_write1(sc, reg, udav_csr_read1(sc, reg) | (x)) 201 202 #define UDAV_CLRBIT(sc, reg, x) \ 203 udav_csr_write1(sc, reg, udav_csr_read1(sc, reg) & ~(x)) 204 205 static const STRUCT_USB_HOST_ID udav_devs[] = { 206 /* ShanTou DM9601 USB NIC */ 207 {USB_VPI(USB_VENDOR_SHANTOU, USB_PRODUCT_SHANTOU_DM9601, 0)}, 208 /* ShanTou ST268 USB NIC */ 209 {USB_VPI(USB_VENDOR_SHANTOU, USB_PRODUCT_SHANTOU_ST268, 0)}, 210 /* Corega USB-TXC */ 211 {USB_VPI(USB_VENDOR_COREGA, USB_PRODUCT_COREGA_FETHER_USB_TXC, 0)}, 212 /* ShanTou AMD8515 USB NIC */ 213 {USB_VPI(USB_VENDOR_SHANTOU, USB_PRODUCT_SHANTOU_ADM8515, 0)}, 214 /* Kontron AG USB Ethernet */ 215 {USB_VPI(USB_VENDOR_KONTRON, USB_PRODUCT_KONTRON_DM9601, 0)}, 216 {USB_VPI(USB_VENDOR_KONTRON, USB_PRODUCT_KONTRON_JP1082, 217 UDAV_FLAG_NO_PHY)}, 218 }; 219 220 static void 221 udav_attach_post(struct usb_ether *ue) 222 { 223 struct udav_softc *sc = uether_getsc(ue); 224 225 /* reset the adapter */ 226 udav_reset(sc); 227 228 /* Get Ethernet Address */ 229 udav_csr_read(sc, UDAV_PAR, ue->ue_eaddr, ETHER_ADDR_LEN); 230 } 231 232 static int 233 udav_probe(device_t dev) 234 { 235 struct usb_attach_arg *uaa = device_get_ivars(dev); 236 237 if (uaa->usb_mode != USB_MODE_HOST) 238 return (ENXIO); 239 if (uaa->info.bConfigIndex != UDAV_CONFIG_INDEX) 240 return (ENXIO); 241 if (uaa->info.bIfaceIndex != UDAV_IFACE_INDEX) 242 return (ENXIO); 243 244 return (usbd_lookup_id_by_uaa(udav_devs, sizeof(udav_devs), uaa)); 245 } 246 247 static int 248 udav_attach(device_t dev) 249 { 250 struct usb_attach_arg *uaa = device_get_ivars(dev); 251 struct udav_softc *sc = device_get_softc(dev); 252 struct usb_ether *ue = &sc->sc_ue; 253 uint8_t iface_index; 254 int error; 255 256 sc->sc_flags = USB_GET_DRIVER_INFO(uaa); 257 258 device_set_usb_desc(dev); 259 260 lockinit(&sc->sc_lock, device_get_nameunit(dev), 0, 0); 261 262 iface_index = UDAV_IFACE_INDEX; 263 error = usbd_transfer_setup(uaa->device, &iface_index, 264 sc->sc_xfer, udav_config, UDAV_N_TRANSFER, sc, &sc->sc_lock); 265 if (error) { 266 device_printf(dev, "allocating USB transfers failed\n"); 267 goto detach; 268 } 269 270 /* 271 * The JP1082 has an unusable PHY and provides no link information. 272 */ 273 if (sc->sc_flags & UDAV_FLAG_NO_PHY) { 274 ue->ue_methods = &udav_ue_methods_nophy; 275 sc->sc_flags |= UDAV_FLAG_LINK; 276 } else { 277 ue->ue_methods = &udav_ue_methods; 278 } 279 280 ue->ue_sc = sc; 281 ue->ue_dev = dev; 282 ue->ue_udev = uaa->device; 283 ue->ue_lock = &sc->sc_lock; 284 285 error = uether_ifattach(ue); 286 if (error) { 287 device_printf(dev, "could not attach interface\n"); 288 goto detach; 289 } 290 291 return (0); /* success */ 292 293 detach: 294 udav_detach(dev); 295 return (ENXIO); /* failure */ 296 } 297 298 static int 299 udav_detach(device_t dev) 300 { 301 struct udav_softc *sc = device_get_softc(dev); 302 struct usb_ether *ue = &sc->sc_ue; 303 304 usbd_transfer_unsetup(sc->sc_xfer, UDAV_N_TRANSFER); 305 uether_ifdetach(ue); 306 lockuninit(&sc->sc_lock); 307 308 return (0); 309 } 310 311 #if 0 312 static int 313 udav_mem_read(struct udav_softc *sc, uint16_t offset, void *buf, 314 int len) 315 { 316 struct usb_device_request req; 317 318 len &= 0xff; 319 320 req.bmRequestType = UT_READ_VENDOR_DEVICE; 321 req.bRequest = UDAV_REQ_MEM_READ; 322 USETW(req.wValue, 0x0000); 323 USETW(req.wIndex, offset); 324 USETW(req.wLength, len); 325 326 return (uether_do_request(&sc->sc_ue, &req, buf, 1000)); 327 } 328 329 static int 330 udav_mem_write(struct udav_softc *sc, uint16_t offset, void *buf, 331 int len) 332 { 333 struct usb_device_request req; 334 335 len &= 0xff; 336 337 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 338 req.bRequest = UDAV_REQ_MEM_WRITE; 339 USETW(req.wValue, 0x0000); 340 USETW(req.wIndex, offset); 341 USETW(req.wLength, len); 342 343 return (uether_do_request(&sc->sc_ue, &req, buf, 1000)); 344 } 345 346 static int 347 udav_mem_write1(struct udav_softc *sc, uint16_t offset, 348 uint8_t ch) 349 { 350 struct usb_device_request req; 351 352 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 353 req.bRequest = UDAV_REQ_MEM_WRITE1; 354 USETW(req.wValue, ch); 355 USETW(req.wIndex, offset); 356 USETW(req.wLength, 0x0000); 357 358 return (uether_do_request(&sc->sc_ue, &req, NULL, 1000)); 359 } 360 #endif 361 362 static int 363 udav_csr_read(struct udav_softc *sc, uint16_t offset, void *buf, int len) 364 { 365 struct usb_device_request req; 366 367 len &= 0xff; 368 369 req.bmRequestType = UT_READ_VENDOR_DEVICE; 370 req.bRequest = UDAV_REQ_REG_READ; 371 USETW(req.wValue, 0x0000); 372 USETW(req.wIndex, offset); 373 USETW(req.wLength, len); 374 375 return (uether_do_request(&sc->sc_ue, &req, buf, 1000)); 376 } 377 378 static int 379 udav_csr_write(struct udav_softc *sc, uint16_t offset, void *buf, int len) 380 { 381 struct usb_device_request req; 382 383 offset &= 0xff; 384 len &= 0xff; 385 386 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 387 req.bRequest = UDAV_REQ_REG_WRITE; 388 USETW(req.wValue, 0x0000); 389 USETW(req.wIndex, offset); 390 USETW(req.wLength, len); 391 392 return (uether_do_request(&sc->sc_ue, &req, buf, 1000)); 393 } 394 395 static uint8_t 396 udav_csr_read1(struct udav_softc *sc, uint16_t offset) 397 { 398 uint8_t val; 399 400 udav_csr_read(sc, offset, &val, 1); 401 return (val); 402 } 403 404 static int 405 udav_csr_write1(struct udav_softc *sc, uint16_t offset, 406 uint8_t ch) 407 { 408 struct usb_device_request req; 409 410 offset &= 0xff; 411 412 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 413 req.bRequest = UDAV_REQ_REG_WRITE1; 414 USETW(req.wValue, ch); 415 USETW(req.wIndex, offset); 416 USETW(req.wLength, 0x0000); 417 418 return (uether_do_request(&sc->sc_ue, &req, NULL, 1000)); 419 } 420 421 static void 422 udav_init(struct usb_ether *ue) 423 { 424 struct udav_softc *sc = ue->ue_sc; 425 struct ifnet *ifp = uether_getifp(&sc->sc_ue); 426 427 UDAV_LOCK_ASSERT(sc); 428 429 /* 430 * Cancel pending I/O 431 */ 432 udav_stop(ue); 433 434 /* set MAC address */ 435 udav_csr_write(sc, UDAV_PAR, IF_LLADDR(ifp), ETHER_ADDR_LEN); 436 437 /* initialize network control register */ 438 439 /* disable loopback */ 440 UDAV_CLRBIT(sc, UDAV_NCR, UDAV_NCR_LBK0 | UDAV_NCR_LBK1); 441 442 /* Initialize RX control register */ 443 UDAV_SETBIT(sc, UDAV_RCR, UDAV_RCR_DIS_LONG | UDAV_RCR_DIS_CRC); 444 445 /* load multicast filter and update promiscious mode bit */ 446 udav_setpromisc(ue); 447 448 /* enable RX */ 449 UDAV_SETBIT(sc, UDAV_RCR, UDAV_RCR_RXEN); 450 451 /* clear POWER_DOWN state of internal PHY */ 452 UDAV_SETBIT(sc, UDAV_GPCR, UDAV_GPCR_GEP_CNTL0); 453 UDAV_CLRBIT(sc, UDAV_GPR, UDAV_GPR_GEPIO0); 454 455 usbd_xfer_set_stall(sc->sc_xfer[UDAV_BULK_DT_WR]); 456 457 #if 0 /* XXX */ 458 ifp->if_drv_flags |= IFF_DRV_RUNNING; 459 #endif 460 udav_start(ue); 461 } 462 463 static void 464 udav_reset(struct udav_softc *sc) 465 { 466 int i; 467 468 /* Select PHY */ 469 #if 1 470 /* 471 * XXX: force select internal phy. 472 * external phy routines are not tested. 473 */ 474 UDAV_CLRBIT(sc, UDAV_NCR, UDAV_NCR_EXT_PHY); 475 #else 476 if (sc->sc_flags & UDAV_EXT_PHY) 477 UDAV_SETBIT(sc, UDAV_NCR, UDAV_NCR_EXT_PHY); 478 else 479 UDAV_CLRBIT(sc, UDAV_NCR, UDAV_NCR_EXT_PHY); 480 #endif 481 482 UDAV_SETBIT(sc, UDAV_NCR, UDAV_NCR_RST); 483 484 for (i = 0; i < UDAV_TX_TIMEOUT; i++) { 485 if (!(udav_csr_read1(sc, UDAV_NCR) & UDAV_NCR_RST)) 486 break; 487 if (uether_pause(&sc->sc_ue, hz / 100)) 488 break; 489 } 490 491 uether_pause(&sc->sc_ue, hz / 100); 492 } 493 494 #define UDAV_BITS 6 495 static void 496 udav_setmulti(struct usb_ether *ue) 497 { 498 struct udav_softc *sc = ue->ue_sc; 499 struct ifnet *ifp = uether_getifp(&sc->sc_ue); 500 struct ifmultiaddr *ifma; 501 uint8_t hashtbl[8] = { 0, 0, 0, 0, 0, 0, 0, 0 }; 502 int h = 0; 503 504 UDAV_LOCK_ASSERT(sc); 505 506 if (ifp->if_flags & IFF_ALLMULTI || ifp->if_flags & IFF_PROMISC) { 507 UDAV_SETBIT(sc, UDAV_RCR, UDAV_RCR_ALL|UDAV_RCR_PRMSC); 508 return; 509 } 510 511 /* first, zot all the existing hash bits */ 512 memset(hashtbl, 0x00, sizeof(hashtbl)); 513 hashtbl[7] |= 0x80; /* broadcast address */ 514 udav_csr_write(sc, UDAV_MAR, hashtbl, sizeof(hashtbl)); 515 516 /* now program new ones */ 517 TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) 518 { 519 if (ifma->ifma_addr->sa_family != AF_LINK) 520 continue; 521 h = ether_crc32_be(LLADDR((struct sockaddr_dl *) 522 ifma->ifma_addr), ETHER_ADDR_LEN) >> 26; 523 setbit(hashtbl, h); 524 } 525 526 /* disable all multicast */ 527 UDAV_CLRBIT(sc, UDAV_RCR, UDAV_RCR_ALL); 528 529 /* write hash value to the register */ 530 udav_csr_write(sc, UDAV_MAR, hashtbl, sizeof(hashtbl)); 531 } 532 533 static void 534 udav_setpromisc(struct usb_ether *ue) 535 { 536 struct udav_softc *sc = ue->ue_sc; 537 struct ifnet *ifp = uether_getifp(&sc->sc_ue); 538 uint8_t rxmode; 539 540 rxmode = udav_csr_read1(sc, UDAV_RCR); 541 rxmode &= ~(UDAV_RCR_ALL | UDAV_RCR_PRMSC); 542 543 if (ifp->if_flags & IFF_PROMISC) 544 rxmode |= UDAV_RCR_ALL | UDAV_RCR_PRMSC; 545 else if (ifp->if_flags & IFF_ALLMULTI) 546 rxmode |= UDAV_RCR_ALL; 547 548 /* write new mode bits */ 549 udav_csr_write1(sc, UDAV_RCR, rxmode); 550 } 551 552 static void 553 udav_start(struct usb_ether *ue) 554 { 555 struct udav_softc *sc = ue->ue_sc; 556 557 /* 558 * start the USB transfers, if not already started: 559 */ 560 usbd_transfer_start(sc->sc_xfer[UDAV_INTR_DT_RD]); 561 usbd_transfer_start(sc->sc_xfer[UDAV_BULK_DT_RD]); 562 usbd_transfer_start(sc->sc_xfer[UDAV_BULK_DT_WR]); 563 } 564 565 static void 566 udav_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error) 567 { 568 struct udav_softc *sc = usbd_xfer_softc(xfer); 569 struct ifnet *ifp = uether_getifp(&sc->sc_ue); 570 struct usb_page_cache *pc; 571 struct mbuf *m; 572 int extra_len; 573 int temp_len; 574 uint8_t buf[2]; 575 576 switch (USB_GET_STATE(xfer)) { 577 case USB_ST_TRANSFERRED: 578 DPRINTFN(11, "transfer complete\n"); 579 IFNET_STAT_INC(ifp, opackets, 1); 580 581 /* FALLTHROUGH */ 582 case USB_ST_SETUP: 583 tr_setup: 584 if ((sc->sc_flags & UDAV_FLAG_LINK) == 0) { 585 /* 586 * don't send anything if there is no link ! 587 */ 588 return; 589 } 590 m = ifq_dequeue(&ifp->if_snd); 591 592 if (m == NULL) 593 return; 594 if (m->m_pkthdr.len > MCLBYTES) 595 m->m_pkthdr.len = MCLBYTES; 596 if (m->m_pkthdr.len < UDAV_MIN_FRAME_LEN) { 597 extra_len = UDAV_MIN_FRAME_LEN - m->m_pkthdr.len; 598 } else { 599 extra_len = 0; 600 } 601 602 temp_len = (m->m_pkthdr.len + extra_len); 603 604 /* 605 * the frame length is specified in the first 2 bytes of the 606 * buffer 607 */ 608 buf[0] = (uint8_t)(temp_len); 609 buf[1] = (uint8_t)(temp_len >> 8); 610 611 temp_len += 2; 612 613 pc = usbd_xfer_get_frame(xfer, 0); 614 usbd_copy_in(pc, 0, buf, 2); 615 usbd_m_copy_in(pc, 2, m, 0, m->m_pkthdr.len); 616 617 if (extra_len) 618 usbd_frame_zero(pc, temp_len - extra_len, extra_len); 619 /* 620 * if there's a BPF listener, bounce a copy 621 * of this frame to him: 622 */ 623 BPF_MTAP(ifp, m); 624 625 m_freem(m); 626 627 usbd_xfer_set_frame_len(xfer, 0, temp_len); 628 usbd_transfer_submit(xfer); 629 return; 630 631 default: /* Error */ 632 DPRINTFN(11, "transfer error, %s\n", 633 usbd_errstr(error)); 634 635 IFNET_STAT_INC(ifp, oerrors, 1); 636 637 if (error != USB_ERR_CANCELLED) { 638 /* try to clear stall first */ 639 usbd_xfer_set_stall(xfer); 640 goto tr_setup; 641 } 642 return; 643 } 644 } 645 646 static void 647 udav_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error) 648 { 649 struct udav_softc *sc = usbd_xfer_softc(xfer); 650 struct usb_ether *ue = &sc->sc_ue; 651 struct ifnet *ifp = uether_getifp(ue); 652 struct usb_page_cache *pc; 653 struct udav_rxpkt stat; 654 int len; 655 int actlen; 656 657 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL); 658 659 switch (USB_GET_STATE(xfer)) { 660 case USB_ST_TRANSFERRED: 661 662 if (actlen < sizeof(stat) + ETHER_CRC_LEN) { 663 IFNET_STAT_INC(ifp, ierrors, 1); 664 goto tr_setup; 665 } 666 pc = usbd_xfer_get_frame(xfer, 0); 667 usbd_copy_out(pc, 0, &stat, sizeof(stat)); 668 actlen -= sizeof(stat); 669 len = min(actlen, le16toh(stat.pktlen)); 670 len -= ETHER_CRC_LEN; 671 672 if (stat.rxstat & UDAV_RSR_LCS) { 673 IFNET_STAT_INC(ifp, collisions, 1); 674 goto tr_setup; 675 } 676 if (stat.rxstat & UDAV_RSR_ERR) { 677 IFNET_STAT_INC(ifp, ierrors, 1); 678 goto tr_setup; 679 } 680 uether_rxbuf(ue, pc, sizeof(stat), len); 681 /* FALLTHROUGH */ 682 case USB_ST_SETUP: 683 tr_setup: 684 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 685 usbd_transfer_submit(xfer); 686 uether_rxflush(ue); 687 return; 688 689 default: /* Error */ 690 DPRINTF("bulk read error, %s\n", 691 usbd_errstr(error)); 692 693 if (error != USB_ERR_CANCELLED) { 694 /* try to clear stall first */ 695 usbd_xfer_set_stall(xfer); 696 goto tr_setup; 697 } 698 return; 699 } 700 } 701 702 static void 703 udav_intr_callback(struct usb_xfer *xfer, usb_error_t error) 704 { 705 switch (USB_GET_STATE(xfer)) { 706 case USB_ST_TRANSFERRED: 707 case USB_ST_SETUP: 708 tr_setup: 709 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 710 usbd_transfer_submit(xfer); 711 return; 712 713 default: /* Error */ 714 if (error != USB_ERR_CANCELLED) { 715 /* try to clear stall first */ 716 usbd_xfer_set_stall(xfer); 717 goto tr_setup; 718 } 719 return; 720 } 721 } 722 723 static void 724 udav_stop(struct usb_ether *ue) 725 { 726 struct udav_softc *sc = ue->ue_sc; 727 #if 0 /* XXX */ 728 struct ifnet *ifp = uether_getifp(&sc->sc_ue); 729 #endif 730 731 UDAV_LOCK_ASSERT(sc); 732 733 #if 0 /* XXX */ 734 ifp->if_drv_flags &= ~IFF_DRV_RUNNING; 735 #endif 736 if (!(sc->sc_flags & UDAV_FLAG_NO_PHY)) 737 sc->sc_flags &= ~UDAV_FLAG_LINK; 738 739 /* 740 * stop all the transfers, if not already stopped: 741 */ 742 usbd_transfer_stop(sc->sc_xfer[UDAV_BULK_DT_WR]); 743 usbd_transfer_stop(sc->sc_xfer[UDAV_BULK_DT_RD]); 744 usbd_transfer_stop(sc->sc_xfer[UDAV_INTR_DT_RD]); 745 746 udav_reset(sc); 747 } 748 749 static int 750 udav_ifmedia_upd(struct ifnet *ifp) 751 { 752 struct udav_softc *sc = ifp->if_softc; 753 struct mii_data *mii = GET_MII(sc); 754 struct mii_softc *miisc; 755 int error; 756 757 UDAV_LOCK_ASSERT(sc); 758 759 sc->sc_flags &= ~UDAV_FLAG_LINK; 760 LIST_FOREACH(miisc, &mii->mii_phys, mii_list) 761 mii_phy_reset(miisc); 762 error = mii_mediachg(mii); 763 return (error); 764 } 765 766 static void 767 udav_ifmedia_status(struct ifnet *ifp, struct ifmediareq *ifmr) 768 { 769 struct udav_softc *sc = ifp->if_softc; 770 struct mii_data *mii = GET_MII(sc); 771 772 UDAV_LOCK(sc); 773 mii_pollstat(mii); 774 ifmr->ifm_active = mii->mii_media_active; 775 ifmr->ifm_status = mii->mii_media_status; 776 UDAV_UNLOCK(sc); 777 } 778 779 static void 780 udav_tick(struct usb_ether *ue) 781 { 782 struct udav_softc *sc = ue->ue_sc; 783 struct mii_data *mii = GET_MII(sc); 784 785 UDAV_LOCK_ASSERT(sc); 786 787 mii_tick(mii); 788 if ((sc->sc_flags & UDAV_FLAG_LINK) == 0 789 && mii->mii_media_status & IFM_ACTIVE && 790 IFM_SUBTYPE(mii->mii_media_active) != IFM_NONE) { 791 sc->sc_flags |= UDAV_FLAG_LINK; 792 udav_start(ue); 793 } 794 } 795 796 static int 797 udav_miibus_readreg(device_t dev, int phy, int reg) 798 { 799 struct udav_softc *sc = device_get_softc(dev); 800 uint16_t data16; 801 uint8_t val[2]; 802 int locked; 803 804 /* XXX: one PHY only for the internal PHY */ 805 if (phy != 0) 806 return (0); 807 808 locked = lockowned(&sc->sc_lock); 809 if (!locked) 810 UDAV_LOCK(sc); 811 812 /* select internal PHY and set PHY register address */ 813 udav_csr_write1(sc, UDAV_EPAR, 814 UDAV_EPAR_PHY_ADR0 | (reg & UDAV_EPAR_EROA_MASK)); 815 816 /* select PHY operation and start read command */ 817 udav_csr_write1(sc, UDAV_EPCR, UDAV_EPCR_EPOS | UDAV_EPCR_ERPRR); 818 819 /* XXX: should we wait? */ 820 821 /* end read command */ 822 UDAV_CLRBIT(sc, UDAV_EPCR, UDAV_EPCR_ERPRR); 823 824 /* retrieve the result from data registers */ 825 udav_csr_read(sc, UDAV_EPDRL, val, 2); 826 827 data16 = (val[0] | (val[1] << 8)); 828 829 DPRINTFN(11, "phy=%d reg=0x%04x => 0x%04x\n", 830 phy, reg, data16); 831 832 if (!locked) 833 UDAV_UNLOCK(sc); 834 return (data16); 835 } 836 837 static int 838 udav_miibus_writereg(device_t dev, int phy, int reg, int data) 839 { 840 struct udav_softc *sc = device_get_softc(dev); 841 uint8_t val[2]; 842 int locked; 843 844 /* XXX: one PHY only for the internal PHY */ 845 if (phy != 0) 846 return (0); 847 848 locked = lockowned(&sc->sc_lock); 849 if (!locked) 850 UDAV_LOCK(sc); 851 852 /* select internal PHY and set PHY register address */ 853 udav_csr_write1(sc, UDAV_EPAR, 854 UDAV_EPAR_PHY_ADR0 | (reg & UDAV_EPAR_EROA_MASK)); 855 856 /* put the value to the data registers */ 857 val[0] = (data & 0xff); 858 val[1] = (data >> 8) & 0xff; 859 udav_csr_write(sc, UDAV_EPDRL, val, 2); 860 861 /* select PHY operation and start write command */ 862 udav_csr_write1(sc, UDAV_EPCR, UDAV_EPCR_EPOS | UDAV_EPCR_ERPRW); 863 864 /* XXX: should we wait? */ 865 866 /* end write command */ 867 UDAV_CLRBIT(sc, UDAV_EPCR, UDAV_EPCR_ERPRW); 868 869 if (!locked) 870 UDAV_UNLOCK(sc); 871 return (0); 872 } 873 874 static void 875 udav_miibus_statchg(device_t dev) 876 { 877 /* nothing to do */ 878 } 879