if_udav.c revision 251734
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: head/sys/dev/usb/net/if_udav.c 251734 2013-06-14 05:36:47Z kevlo $ */ 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/cdefs.h> 47__FBSDID("$FreeBSD: head/sys/dev/usb/net/if_udav.c 251734 2013-06-14 05:36:47Z kevlo $"); 48 49#include <sys/stdint.h> 50#include <sys/stddef.h> 51#include <sys/param.h> 52#include <sys/queue.h> 53#include <sys/types.h> 54#include <sys/systm.h> 55#include <sys/kernel.h> 56#include <sys/bus.h> 57#include <sys/module.h> 58#include <sys/lock.h> 59#include <sys/mutex.h> 60#include <sys/condvar.h> 61#include <sys/sysctl.h> 62#include <sys/sx.h> 63#include <sys/unistd.h> 64#include <sys/callout.h> 65#include <sys/malloc.h> 66#include <sys/priv.h> 67 68#include <dev/usb/usb.h> 69#include <dev/usb/usbdi.h> 70#include <dev/usb/usbdi_util.h> 71#include "usbdevs.h" 72 73#define USB_DEBUG_VAR udav_debug 74#include <dev/usb/usb_debug.h> 75#include <dev/usb/usb_process.h> 76 77#include <dev/usb/net/usb_ethernet.h> 78#include <dev/usb/net/if_udavreg.h> 79 80/* prototypes */ 81 82static device_probe_t udav_probe; 83static device_attach_t udav_attach; 84static device_detach_t udav_detach; 85 86static usb_callback_t udav_bulk_write_callback; 87static usb_callback_t udav_bulk_read_callback; 88static usb_callback_t udav_intr_callback; 89 90static uether_fn_t udav_attach_post; 91static uether_fn_t udav_init; 92static uether_fn_t udav_stop; 93static uether_fn_t udav_start; 94static uether_fn_t udav_tick; 95static uether_fn_t udav_setmulti; 96static uether_fn_t udav_setpromisc; 97 98static int udav_csr_read(struct udav_softc *, uint16_t, void *, int); 99static int udav_csr_write(struct udav_softc *, uint16_t, void *, int); 100static uint8_t udav_csr_read1(struct udav_softc *, uint16_t); 101static int udav_csr_write1(struct udav_softc *, uint16_t, uint8_t); 102static void udav_reset(struct udav_softc *); 103static int udav_ifmedia_upd(struct ifnet *); 104static void udav_ifmedia_status(struct ifnet *, struct ifmediareq *); 105 106static miibus_readreg_t udav_miibus_readreg; 107static miibus_writereg_t udav_miibus_writereg; 108static miibus_statchg_t udav_miibus_statchg; 109 110static const struct usb_config udav_config[UDAV_N_TRANSFER] = { 111 112 [UDAV_BULK_DT_WR] = { 113 .type = UE_BULK, 114 .endpoint = UE_ADDR_ANY, 115 .direction = UE_DIR_OUT, 116 .bufsize = (MCLBYTES + 2), 117 .flags = {.pipe_bof = 1,.force_short_xfer = 1,}, 118 .callback = udav_bulk_write_callback, 119 .timeout = 10000, /* 10 seconds */ 120 }, 121 122 [UDAV_BULK_DT_RD] = { 123 .type = UE_BULK, 124 .endpoint = UE_ADDR_ANY, 125 .direction = UE_DIR_IN, 126 .bufsize = (MCLBYTES + 3), 127 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 128 .callback = udav_bulk_read_callback, 129 .timeout = 0, /* no timeout */ 130 }, 131 132 [UDAV_INTR_DT_RD] = { 133 .type = UE_INTERRUPT, 134 .endpoint = UE_ADDR_ANY, 135 .direction = UE_DIR_IN, 136 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 137 .bufsize = 0, /* use wMaxPacketSize */ 138 .callback = udav_intr_callback, 139 }, 140}; 141 142static device_method_t udav_methods[] = { 143 /* Device interface */ 144 DEVMETHOD(device_probe, udav_probe), 145 DEVMETHOD(device_attach, udav_attach), 146 DEVMETHOD(device_detach, udav_detach), 147 148 /* MII interface */ 149 DEVMETHOD(miibus_readreg, udav_miibus_readreg), 150 DEVMETHOD(miibus_writereg, udav_miibus_writereg), 151 DEVMETHOD(miibus_statchg, udav_miibus_statchg), 152 153 DEVMETHOD_END 154}; 155 156static driver_t udav_driver = { 157 .name = "udav", 158 .methods = udav_methods, 159 .size = sizeof(struct udav_softc), 160}; 161 162static devclass_t udav_devclass; 163 164DRIVER_MODULE(udav, uhub, udav_driver, udav_devclass, NULL, 0); 165DRIVER_MODULE(miibus, udav, miibus_driver, miibus_devclass, 0, 0); 166MODULE_DEPEND(udav, uether, 1, 1, 1); 167MODULE_DEPEND(udav, usb, 1, 1, 1); 168MODULE_DEPEND(udav, ether, 1, 1, 1); 169MODULE_DEPEND(udav, miibus, 1, 1, 1); 170MODULE_VERSION(udav, 1); 171 172static const struct usb_ether_methods udav_ue_methods = { 173 .ue_attach_post = udav_attach_post, 174 .ue_start = udav_start, 175 .ue_init = udav_init, 176 .ue_stop = udav_stop, 177 .ue_tick = udav_tick, 178 .ue_setmulti = udav_setmulti, 179 .ue_setpromisc = udav_setpromisc, 180 .ue_mii_upd = udav_ifmedia_upd, 181 .ue_mii_sts = udav_ifmedia_status, 182}; 183 184static const struct usb_ether_methods udav_ue_methods_nophy = { 185 .ue_attach_post = udav_attach_post, 186 .ue_start = udav_start, 187 .ue_init = udav_init, 188 .ue_stop = udav_stop, 189 .ue_setmulti = udav_setmulti, 190 .ue_setpromisc = udav_setpromisc, 191}; 192 193#ifdef USB_DEBUG 194static int udav_debug = 0; 195 196static SYSCTL_NODE(_hw_usb, OID_AUTO, udav, CTLFLAG_RW, 0, "USB udav"); 197SYSCTL_INT(_hw_usb_udav, OID_AUTO, debug, CTLFLAG_RW, &udav_debug, 0, 198 "Debug level"); 199#endif 200 201#define UDAV_SETBIT(sc, reg, x) \ 202 udav_csr_write1(sc, reg, udav_csr_read1(sc, reg) | (x)) 203 204#define UDAV_CLRBIT(sc, reg, x) \ 205 udav_csr_write1(sc, reg, udav_csr_read1(sc, reg) & ~(x)) 206 207static const STRUCT_USB_HOST_ID udav_devs[] = { 208 /* ShanTou DM9601 USB NIC */ 209 {USB_VPI(USB_VENDOR_SHANTOU, USB_PRODUCT_SHANTOU_DM9601, 0)}, 210 /* ShanTou ST268 USB NIC */ 211 {USB_VPI(USB_VENDOR_SHANTOU, USB_PRODUCT_SHANTOU_ST268, 0)}, 212 /* Corega USB-TXC */ 213 {USB_VPI(USB_VENDOR_COREGA, USB_PRODUCT_COREGA_FETHER_USB_TXC, 0)}, 214 /* ShanTou AMD8515 USB NIC */ 215 {USB_VPI(USB_VENDOR_SHANTOU, USB_PRODUCT_SHANTOU_ADM8515, 0)}, 216 /* Kontron AG USB Ethernet */ 217 {USB_VPI(USB_VENDOR_KONTRON, USB_PRODUCT_KONTRON_DM9601, 0)}, 218 {USB_VPI(USB_VENDOR_KONTRON, USB_PRODUCT_KONTRON_JP1082, 219 UDAV_FLAG_NO_PHY)}, 220}; 221 222static void 223udav_attach_post(struct usb_ether *ue) 224{ 225 struct udav_softc *sc = uether_getsc(ue); 226 227 /* reset the adapter */ 228 udav_reset(sc); 229 230 /* Get Ethernet Address */ 231 udav_csr_read(sc, UDAV_PAR, ue->ue_eaddr, ETHER_ADDR_LEN); 232} 233 234static int 235udav_probe(device_t dev) 236{ 237 struct usb_attach_arg *uaa = device_get_ivars(dev); 238 239 if (uaa->usb_mode != USB_MODE_HOST) 240 return (ENXIO); 241 if (uaa->info.bConfigIndex != UDAV_CONFIG_INDEX) 242 return (ENXIO); 243 if (uaa->info.bIfaceIndex != UDAV_IFACE_INDEX) 244 return (ENXIO); 245 246 return (usbd_lookup_id_by_uaa(udav_devs, sizeof(udav_devs), uaa)); 247} 248 249static int 250udav_attach(device_t dev) 251{ 252 struct usb_attach_arg *uaa = device_get_ivars(dev); 253 struct udav_softc *sc = device_get_softc(dev); 254 struct usb_ether *ue = &sc->sc_ue; 255 uint8_t iface_index; 256 int error; 257 258 sc->sc_flags = USB_GET_DRIVER_INFO(uaa); 259 260 device_set_usb_desc(dev); 261 262 mtx_init(&sc->sc_mtx, device_get_nameunit(dev), NULL, MTX_DEF); 263 264 iface_index = UDAV_IFACE_INDEX; 265 error = usbd_transfer_setup(uaa->device, &iface_index, 266 sc->sc_xfer, udav_config, UDAV_N_TRANSFER, sc, &sc->sc_mtx); 267 if (error) { 268 device_printf(dev, "allocating USB transfers failed\n"); 269 goto detach; 270 } 271 272 /* 273 * The JP1082 has an unusable PHY and provides no link information. 274 */ 275 if (sc->sc_flags & UDAV_FLAG_NO_PHY) { 276 ue->ue_methods = &udav_ue_methods_nophy; 277 sc->sc_flags |= UDAV_FLAG_LINK; 278 } else { 279 ue->ue_methods = &udav_ue_methods; 280 } 281 282 ue->ue_sc = sc; 283 ue->ue_dev = dev; 284 ue->ue_udev = uaa->device; 285 ue->ue_mtx = &sc->sc_mtx; 286 287 error = uether_ifattach(ue); 288 if (error) { 289 device_printf(dev, "could not attach interface\n"); 290 goto detach; 291 } 292 293 return (0); /* success */ 294 295detach: 296 udav_detach(dev); 297 return (ENXIO); /* failure */ 298} 299 300static int 301udav_detach(device_t dev) 302{ 303 struct udav_softc *sc = device_get_softc(dev); 304 struct usb_ether *ue = &sc->sc_ue; 305 306 usbd_transfer_unsetup(sc->sc_xfer, UDAV_N_TRANSFER); 307 uether_ifdetach(ue); 308 mtx_destroy(&sc->sc_mtx); 309 310 return (0); 311} 312 313#if 0 314static int 315udav_mem_read(struct udav_softc *sc, uint16_t offset, void *buf, 316 int len) 317{ 318 struct usb_device_request req; 319 320 len &= 0xff; 321 322 req.bmRequestType = UT_READ_VENDOR_DEVICE; 323 req.bRequest = UDAV_REQ_MEM_READ; 324 USETW(req.wValue, 0x0000); 325 USETW(req.wIndex, offset); 326 USETW(req.wLength, len); 327 328 return (uether_do_request(&sc->sc_ue, &req, buf, 1000)); 329} 330 331static int 332udav_mem_write(struct udav_softc *sc, uint16_t offset, void *buf, 333 int len) 334{ 335 struct usb_device_request req; 336 337 len &= 0xff; 338 339 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 340 req.bRequest = UDAV_REQ_MEM_WRITE; 341 USETW(req.wValue, 0x0000); 342 USETW(req.wIndex, offset); 343 USETW(req.wLength, len); 344 345 return (uether_do_request(&sc->sc_ue, &req, buf, 1000)); 346} 347 348static int 349udav_mem_write1(struct udav_softc *sc, uint16_t offset, 350 uint8_t ch) 351{ 352 struct usb_device_request req; 353 354 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 355 req.bRequest = UDAV_REQ_MEM_WRITE1; 356 USETW(req.wValue, ch); 357 USETW(req.wIndex, offset); 358 USETW(req.wLength, 0x0000); 359 360 return (uether_do_request(&sc->sc_ue, &req, NULL, 1000)); 361} 362#endif 363 364static int 365udav_csr_read(struct udav_softc *sc, uint16_t offset, void *buf, int len) 366{ 367 struct usb_device_request req; 368 369 len &= 0xff; 370 371 req.bmRequestType = UT_READ_VENDOR_DEVICE; 372 req.bRequest = UDAV_REQ_REG_READ; 373 USETW(req.wValue, 0x0000); 374 USETW(req.wIndex, offset); 375 USETW(req.wLength, len); 376 377 return (uether_do_request(&sc->sc_ue, &req, buf, 1000)); 378} 379 380static int 381udav_csr_write(struct udav_softc *sc, uint16_t offset, void *buf, int len) 382{ 383 struct usb_device_request req; 384 385 offset &= 0xff; 386 len &= 0xff; 387 388 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 389 req.bRequest = UDAV_REQ_REG_WRITE; 390 USETW(req.wValue, 0x0000); 391 USETW(req.wIndex, offset); 392 USETW(req.wLength, len); 393 394 return (uether_do_request(&sc->sc_ue, &req, buf, 1000)); 395} 396 397static uint8_t 398udav_csr_read1(struct udav_softc *sc, uint16_t offset) 399{ 400 uint8_t val; 401 402 udav_csr_read(sc, offset, &val, 1); 403 return (val); 404} 405 406static int 407udav_csr_write1(struct udav_softc *sc, uint16_t offset, 408 uint8_t ch) 409{ 410 struct usb_device_request req; 411 412 offset &= 0xff; 413 414 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 415 req.bRequest = UDAV_REQ_REG_WRITE1; 416 USETW(req.wValue, ch); 417 USETW(req.wIndex, offset); 418 USETW(req.wLength, 0x0000); 419 420 return (uether_do_request(&sc->sc_ue, &req, NULL, 1000)); 421} 422 423static void 424udav_init(struct usb_ether *ue) 425{ 426 struct udav_softc *sc = ue->ue_sc; 427 struct ifnet *ifp = uether_getifp(&sc->sc_ue); 428 429 UDAV_LOCK_ASSERT(sc, MA_OWNED); 430 431 /* 432 * Cancel pending I/O 433 */ 434 udav_stop(ue); 435 436 /* set MAC address */ 437 udav_csr_write(sc, UDAV_PAR, IF_LLADDR(ifp), ETHER_ADDR_LEN); 438 439 /* initialize network control register */ 440 441 /* disable loopback */ 442 UDAV_CLRBIT(sc, UDAV_NCR, UDAV_NCR_LBK0 | UDAV_NCR_LBK1); 443 444 /* Initialize RX control register */ 445 UDAV_SETBIT(sc, UDAV_RCR, UDAV_RCR_DIS_LONG | UDAV_RCR_DIS_CRC); 446 447 /* load multicast filter and update promiscious mode bit */ 448 udav_setpromisc(ue); 449 450 /* enable RX */ 451 UDAV_SETBIT(sc, UDAV_RCR, UDAV_RCR_RXEN); 452 453 /* clear POWER_DOWN state of internal PHY */ 454 UDAV_SETBIT(sc, UDAV_GPCR, UDAV_GPCR_GEP_CNTL0); 455 UDAV_CLRBIT(sc, UDAV_GPR, UDAV_GPR_GEPIO0); 456 457 usbd_xfer_set_stall(sc->sc_xfer[UDAV_BULK_DT_WR]); 458 459 ifp->if_drv_flags |= IFF_DRV_RUNNING; 460 udav_start(ue); 461} 462 463static void 464udav_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 495static void 496udav_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, MA_OWNED); 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 if_maddr_rlock(ifp); 518 TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) 519 { 520 if (ifma->ifma_addr->sa_family != AF_LINK) 521 continue; 522 h = ether_crc32_be(LLADDR((struct sockaddr_dl *) 523 ifma->ifma_addr), ETHER_ADDR_LEN) >> 26; 524 hashtbl[h / 8] |= 1 << (h % 8); 525 } 526 if_maddr_runlock(ifp); 527 528 /* disable all multicast */ 529 UDAV_CLRBIT(sc, UDAV_RCR, UDAV_RCR_ALL); 530 531 /* write hash value to the register */ 532 udav_csr_write(sc, UDAV_MAR, hashtbl, sizeof(hashtbl)); 533} 534 535static void 536udav_setpromisc(struct usb_ether *ue) 537{ 538 struct udav_softc *sc = ue->ue_sc; 539 struct ifnet *ifp = uether_getifp(&sc->sc_ue); 540 uint8_t rxmode; 541 542 rxmode = udav_csr_read1(sc, UDAV_RCR); 543 rxmode &= ~(UDAV_RCR_ALL | UDAV_RCR_PRMSC); 544 545 if (ifp->if_flags & IFF_PROMISC) 546 rxmode |= UDAV_RCR_ALL | UDAV_RCR_PRMSC; 547 else if (ifp->if_flags & IFF_ALLMULTI) 548 rxmode |= UDAV_RCR_ALL; 549 550 /* write new mode bits */ 551 udav_csr_write1(sc, UDAV_RCR, rxmode); 552} 553 554static void 555udav_start(struct usb_ether *ue) 556{ 557 struct udav_softc *sc = ue->ue_sc; 558 559 /* 560 * start the USB transfers, if not already started: 561 */ 562 usbd_transfer_start(sc->sc_xfer[UDAV_INTR_DT_RD]); 563 usbd_transfer_start(sc->sc_xfer[UDAV_BULK_DT_RD]); 564 usbd_transfer_start(sc->sc_xfer[UDAV_BULK_DT_WR]); 565} 566 567static void 568udav_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error) 569{ 570 struct udav_softc *sc = usbd_xfer_softc(xfer); 571 struct ifnet *ifp = uether_getifp(&sc->sc_ue); 572 struct usb_page_cache *pc; 573 struct mbuf *m; 574 int extra_len; 575 int temp_len; 576 uint8_t buf[2]; 577 578 switch (USB_GET_STATE(xfer)) { 579 case USB_ST_TRANSFERRED: 580 DPRINTFN(11, "transfer complete\n"); 581 ifp->if_opackets++; 582 583 /* FALLTHROUGH */ 584 case USB_ST_SETUP: 585tr_setup: 586 if ((sc->sc_flags & UDAV_FLAG_LINK) == 0) { 587 /* 588 * don't send anything if there is no link ! 589 */ 590 return; 591 } 592 IFQ_DRV_DEQUEUE(&ifp->if_snd, m); 593 594 if (m == NULL) 595 return; 596 if (m->m_pkthdr.len > MCLBYTES) 597 m->m_pkthdr.len = MCLBYTES; 598 if (m->m_pkthdr.len < UDAV_MIN_FRAME_LEN) { 599 extra_len = UDAV_MIN_FRAME_LEN - m->m_pkthdr.len; 600 } else { 601 extra_len = 0; 602 } 603 604 temp_len = (m->m_pkthdr.len + extra_len); 605 606 /* 607 * the frame length is specified in the first 2 bytes of the 608 * buffer 609 */ 610 buf[0] = (uint8_t)(temp_len); 611 buf[1] = (uint8_t)(temp_len >> 8); 612 613 temp_len += 2; 614 615 pc = usbd_xfer_get_frame(xfer, 0); 616 usbd_copy_in(pc, 0, buf, 2); 617 usbd_m_copy_in(pc, 2, m, 0, m->m_pkthdr.len); 618 619 if (extra_len) 620 usbd_frame_zero(pc, temp_len - extra_len, extra_len); 621 /* 622 * if there's a BPF listener, bounce a copy 623 * of this frame to him: 624 */ 625 BPF_MTAP(ifp, m); 626 627 m_freem(m); 628 629 usbd_xfer_set_frame_len(xfer, 0, temp_len); 630 usbd_transfer_submit(xfer); 631 return; 632 633 default: /* Error */ 634 DPRINTFN(11, "transfer error, %s\n", 635 usbd_errstr(error)); 636 637 ifp->if_oerrors++; 638 639 if (error != USB_ERR_CANCELLED) { 640 /* try to clear stall first */ 641 usbd_xfer_set_stall(xfer); 642 goto tr_setup; 643 } 644 return; 645 } 646} 647 648static void 649udav_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error) 650{ 651 struct udav_softc *sc = usbd_xfer_softc(xfer); 652 struct usb_ether *ue = &sc->sc_ue; 653 struct ifnet *ifp = uether_getifp(ue); 654 struct usb_page_cache *pc; 655 struct udav_rxpkt stat; 656 int len; 657 int actlen; 658 659 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL); 660 661 switch (USB_GET_STATE(xfer)) { 662 case USB_ST_TRANSFERRED: 663 664 if (actlen < (int)(sizeof(stat) + ETHER_CRC_LEN)) { 665 ifp->if_ierrors++; 666 goto tr_setup; 667 } 668 pc = usbd_xfer_get_frame(xfer, 0); 669 usbd_copy_out(pc, 0, &stat, sizeof(stat)); 670 actlen -= sizeof(stat); 671 len = min(actlen, le16toh(stat.pktlen)); 672 len -= ETHER_CRC_LEN; 673 674 if (stat.rxstat & UDAV_RSR_LCS) { 675 ifp->if_collisions++; 676 goto tr_setup; 677 } 678 if (stat.rxstat & UDAV_RSR_ERR) { 679 ifp->if_ierrors++; 680 goto tr_setup; 681 } 682 uether_rxbuf(ue, pc, sizeof(stat), len); 683 /* FALLTHROUGH */ 684 case USB_ST_SETUP: 685tr_setup: 686 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 687 usbd_transfer_submit(xfer); 688 uether_rxflush(ue); 689 return; 690 691 default: /* Error */ 692 DPRINTF("bulk read error, %s\n", 693 usbd_errstr(error)); 694 695 if (error != USB_ERR_CANCELLED) { 696 /* try to clear stall first */ 697 usbd_xfer_set_stall(xfer); 698 goto tr_setup; 699 } 700 return; 701 } 702} 703 704static void 705udav_intr_callback(struct usb_xfer *xfer, usb_error_t error) 706{ 707 switch (USB_GET_STATE(xfer)) { 708 case USB_ST_TRANSFERRED: 709 case USB_ST_SETUP: 710tr_setup: 711 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 712 usbd_transfer_submit(xfer); 713 return; 714 715 default: /* Error */ 716 if (error != USB_ERR_CANCELLED) { 717 /* try to clear stall first */ 718 usbd_xfer_set_stall(xfer); 719 goto tr_setup; 720 } 721 return; 722 } 723} 724 725static void 726udav_stop(struct usb_ether *ue) 727{ 728 struct udav_softc *sc = ue->ue_sc; 729 struct ifnet *ifp = uether_getifp(&sc->sc_ue); 730 731 UDAV_LOCK_ASSERT(sc, MA_OWNED); 732 733 ifp->if_drv_flags &= ~IFF_DRV_RUNNING; 734 if (!(sc->sc_flags & UDAV_FLAG_NO_PHY)) 735 sc->sc_flags &= ~UDAV_FLAG_LINK; 736 737 /* 738 * stop all the transfers, if not already stopped: 739 */ 740 usbd_transfer_stop(sc->sc_xfer[UDAV_BULK_DT_WR]); 741 usbd_transfer_stop(sc->sc_xfer[UDAV_BULK_DT_RD]); 742 usbd_transfer_stop(sc->sc_xfer[UDAV_INTR_DT_RD]); 743 744 udav_reset(sc); 745} 746 747static int 748udav_ifmedia_upd(struct ifnet *ifp) 749{ 750 struct udav_softc *sc = ifp->if_softc; 751 struct mii_data *mii = GET_MII(sc); 752 struct mii_softc *miisc; 753 int error; 754 755 UDAV_LOCK_ASSERT(sc, MA_OWNED); 756 757 sc->sc_flags &= ~UDAV_FLAG_LINK; 758 LIST_FOREACH(miisc, &mii->mii_phys, mii_list) 759 PHY_RESET(miisc); 760 error = mii_mediachg(mii); 761 return (error); 762} 763 764static void 765udav_ifmedia_status(struct ifnet *ifp, struct ifmediareq *ifmr) 766{ 767 struct udav_softc *sc = ifp->if_softc; 768 struct mii_data *mii = GET_MII(sc); 769 770 UDAV_LOCK(sc); 771 mii_pollstat(mii); 772 ifmr->ifm_active = mii->mii_media_active; 773 ifmr->ifm_status = mii->mii_media_status; 774 UDAV_UNLOCK(sc); 775} 776 777static void 778udav_tick(struct usb_ether *ue) 779{ 780 struct udav_softc *sc = ue->ue_sc; 781 struct mii_data *mii = GET_MII(sc); 782 783 UDAV_LOCK_ASSERT(sc, MA_OWNED); 784 785 mii_tick(mii); 786 if ((sc->sc_flags & UDAV_FLAG_LINK) == 0 787 && mii->mii_media_status & IFM_ACTIVE && 788 IFM_SUBTYPE(mii->mii_media_active) != IFM_NONE) { 789 sc->sc_flags |= UDAV_FLAG_LINK; 790 udav_start(ue); 791 } 792} 793 794static int 795udav_miibus_readreg(device_t dev, int phy, int reg) 796{ 797 struct udav_softc *sc = device_get_softc(dev); 798 uint16_t data16; 799 uint8_t val[2]; 800 int locked; 801 802 /* XXX: one PHY only for the internal PHY */ 803 if (phy != 0) 804 return (0); 805 806 locked = mtx_owned(&sc->sc_mtx); 807 if (!locked) 808 UDAV_LOCK(sc); 809 810 /* select internal PHY and set PHY register address */ 811 udav_csr_write1(sc, UDAV_EPAR, 812 UDAV_EPAR_PHY_ADR0 | (reg & UDAV_EPAR_EROA_MASK)); 813 814 /* select PHY operation and start read command */ 815 udav_csr_write1(sc, UDAV_EPCR, UDAV_EPCR_EPOS | UDAV_EPCR_ERPRR); 816 817 /* XXX: should we wait? */ 818 819 /* end read command */ 820 UDAV_CLRBIT(sc, UDAV_EPCR, UDAV_EPCR_ERPRR); 821 822 /* retrieve the result from data registers */ 823 udav_csr_read(sc, UDAV_EPDRL, val, 2); 824 825 data16 = (val[0] | (val[1] << 8)); 826 827 DPRINTFN(11, "phy=%d reg=0x%04x => 0x%04x\n", 828 phy, reg, data16); 829 830 if (!locked) 831 UDAV_UNLOCK(sc); 832 return (data16); 833} 834 835static int 836udav_miibus_writereg(device_t dev, int phy, int reg, int data) 837{ 838 struct udav_softc *sc = device_get_softc(dev); 839 uint8_t val[2]; 840 int locked; 841 842 /* XXX: one PHY only for the internal PHY */ 843 if (phy != 0) 844 return (0); 845 846 locked = mtx_owned(&sc->sc_mtx); 847 if (!locked) 848 UDAV_LOCK(sc); 849 850 /* select internal PHY and set PHY register address */ 851 udav_csr_write1(sc, UDAV_EPAR, 852 UDAV_EPAR_PHY_ADR0 | (reg & UDAV_EPAR_EROA_MASK)); 853 854 /* put the value to the data registers */ 855 val[0] = (data & 0xff); 856 val[1] = (data >> 8) & 0xff; 857 udav_csr_write(sc, UDAV_EPDRL, val, 2); 858 859 /* select PHY operation and start write command */ 860 udav_csr_write1(sc, UDAV_EPCR, UDAV_EPCR_EPOS | UDAV_EPCR_ERPRW); 861 862 /* XXX: should we wait? */ 863 864 /* end write command */ 865 UDAV_CLRBIT(sc, UDAV_EPCR, UDAV_EPCR_ERPRW); 866 867 if (!locked) 868 UDAV_UNLOCK(sc); 869 return (0); 870} 871 872static void 873udav_miibus_statchg(device_t dev) 874{ 875 /* nothing to do */ 876} 877