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://ptm2.cc.utu.fi/ftp/network/cards/DM9601/From_NET/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("$FreeBSD$"); 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/socket.h> 56#include <sys/kernel.h> 57#include <sys/bus.h> 58#include <sys/module.h> 59#include <sys/lock.h> 60#include <sys/mutex.h> 61#include <sys/condvar.h> 62#include <sys/sysctl.h> 63#include <sys/sx.h> 64#include <sys/unistd.h> 65#include <sys/callout.h> 66#include <sys/malloc.h> 67#include <sys/priv.h> 68 69#include <net/if.h> 70#include <net/if_var.h> 71 72#include <dev/usb/usb.h> 73#include <dev/usb/usbdi.h> 74#include <dev/usb/usbdi_util.h> 75#include "usbdevs.h" 76 77#define USB_DEBUG_VAR udav_debug 78#include <dev/usb/usb_debug.h> 79#include <dev/usb/usb_process.h> 80 81#include <dev/usb/net/usb_ethernet.h> 82#include <dev/usb/net/if_udavreg.h> 83 84/* prototypes */ 85 86static device_probe_t udav_probe; 87static device_attach_t udav_attach; 88static device_detach_t udav_detach; 89 90static usb_callback_t udav_bulk_write_callback; 91static usb_callback_t udav_bulk_read_callback; 92static usb_callback_t udav_intr_callback; 93 94static uether_fn_t udav_attach_post; 95static uether_fn_t udav_init; 96static uether_fn_t udav_stop; 97static uether_fn_t udav_start; 98static uether_fn_t udav_tick; 99static uether_fn_t udav_setmulti; 100static uether_fn_t udav_setpromisc; 101 102static int udav_csr_read(struct udav_softc *, uint16_t, void *, int); 103static int udav_csr_write(struct udav_softc *, uint16_t, void *, int); 104static uint8_t udav_csr_read1(struct udav_softc *, uint16_t); 105static int udav_csr_write1(struct udav_softc *, uint16_t, uint8_t); 106static void udav_reset(struct udav_softc *); 107static int udav_ifmedia_upd(struct ifnet *); 108static void udav_ifmedia_status(struct ifnet *, struct ifmediareq *); 109 110static miibus_readreg_t udav_miibus_readreg; 111static miibus_writereg_t udav_miibus_writereg; 112static miibus_statchg_t udav_miibus_statchg; 113 114static const struct usb_config udav_config[UDAV_N_TRANSFER] = { 115 116 [UDAV_BULK_DT_WR] = { 117 .type = UE_BULK, 118 .endpoint = UE_ADDR_ANY, 119 .direction = UE_DIR_OUT, 120 .bufsize = (MCLBYTES + 2), 121 .flags = {.pipe_bof = 1,.force_short_xfer = 1,}, 122 .callback = udav_bulk_write_callback, 123 .timeout = 10000, /* 10 seconds */ 124 }, 125 126 [UDAV_BULK_DT_RD] = { 127 .type = UE_BULK, 128 .endpoint = UE_ADDR_ANY, 129 .direction = UE_DIR_IN, 130 .bufsize = (MCLBYTES + 3), 131 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 132 .callback = udav_bulk_read_callback, 133 .timeout = 0, /* no timeout */ 134 }, 135 136 [UDAV_INTR_DT_RD] = { 137 .type = UE_INTERRUPT, 138 .endpoint = UE_ADDR_ANY, 139 .direction = UE_DIR_IN, 140 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 141 .bufsize = 0, /* use wMaxPacketSize */ 142 .callback = udav_intr_callback, 143 }, 144}; 145 146static device_method_t udav_methods[] = { 147 /* Device interface */ 148 DEVMETHOD(device_probe, udav_probe), 149 DEVMETHOD(device_attach, udav_attach), 150 DEVMETHOD(device_detach, udav_detach), 151 152 /* MII interface */ 153 DEVMETHOD(miibus_readreg, udav_miibus_readreg), 154 DEVMETHOD(miibus_writereg, udav_miibus_writereg), 155 DEVMETHOD(miibus_statchg, udav_miibus_statchg), 156 157 DEVMETHOD_END 158}; 159 160static driver_t udav_driver = { 161 .name = "udav", 162 .methods = udav_methods, 163 .size = sizeof(struct udav_softc), 164}; 165 166static devclass_t udav_devclass; 167 168static const STRUCT_USB_HOST_ID udav_devs[] = { 169 /* ShanTou DM9601 USB NIC */ 170 {USB_VPI(USB_VENDOR_SHANTOU, USB_PRODUCT_SHANTOU_DM9601, 0)}, 171 /* ShanTou ST268 USB NIC */ 172 {USB_VPI(USB_VENDOR_SHANTOU, USB_PRODUCT_SHANTOU_ST268, 0)}, 173 /* Corega USB-TXC */ 174 {USB_VPI(USB_VENDOR_COREGA, USB_PRODUCT_COREGA_FETHER_USB_TXC, 0)}, 175 /* ShanTou AMD8515 USB NIC */ 176 {USB_VPI(USB_VENDOR_SHANTOU, USB_PRODUCT_SHANTOU_ADM8515, 0)}, 177 /* Kontron AG USB Ethernet */ 178 {USB_VPI(USB_VENDOR_KONTRON, USB_PRODUCT_KONTRON_DM9601, 0)}, 179 {USB_VPI(USB_VENDOR_KONTRON, USB_PRODUCT_KONTRON_JP1082, 180 UDAV_FLAG_NO_PHY)}, 181}; 182 183DRIVER_MODULE(udav, uhub, udav_driver, udav_devclass, NULL, 0); 184DRIVER_MODULE(miibus, udav, miibus_driver, miibus_devclass, 0, 0); 185MODULE_DEPEND(udav, uether, 1, 1, 1); 186MODULE_DEPEND(udav, usb, 1, 1, 1); 187MODULE_DEPEND(udav, ether, 1, 1, 1); 188MODULE_DEPEND(udav, miibus, 1, 1, 1); 189MODULE_VERSION(udav, 1); 190USB_PNP_HOST_INFO(udav_devs); 191 192static const struct usb_ether_methods udav_ue_methods = { 193 .ue_attach_post = udav_attach_post, 194 .ue_start = udav_start, 195 .ue_init = udav_init, 196 .ue_stop = udav_stop, 197 .ue_tick = udav_tick, 198 .ue_setmulti = udav_setmulti, 199 .ue_setpromisc = udav_setpromisc, 200 .ue_mii_upd = udav_ifmedia_upd, 201 .ue_mii_sts = udav_ifmedia_status, 202}; 203 204static const struct usb_ether_methods udav_ue_methods_nophy = { 205 .ue_attach_post = udav_attach_post, 206 .ue_start = udav_start, 207 .ue_init = udav_init, 208 .ue_stop = udav_stop, 209 .ue_setmulti = udav_setmulti, 210 .ue_setpromisc = udav_setpromisc, 211}; 212 213#ifdef USB_DEBUG 214static int udav_debug = 0; 215 216static SYSCTL_NODE(_hw_usb, OID_AUTO, udav, CTLFLAG_RW, 0, "USB udav"); 217SYSCTL_INT(_hw_usb_udav, OID_AUTO, debug, CTLFLAG_RWTUN, &udav_debug, 0, 218 "Debug level"); 219#endif 220 221#define UDAV_SETBIT(sc, reg, x) \ 222 udav_csr_write1(sc, reg, udav_csr_read1(sc, reg) | (x)) 223 224#define UDAV_CLRBIT(sc, reg, x) \ 225 udav_csr_write1(sc, reg, udav_csr_read1(sc, reg) & ~(x)) 226 227static void 228udav_attach_post(struct usb_ether *ue) 229{ 230 struct udav_softc *sc = uether_getsc(ue); 231 232 /* reset the adapter */ 233 udav_reset(sc); 234 235 /* Get Ethernet Address */ 236 udav_csr_read(sc, UDAV_PAR, ue->ue_eaddr, ETHER_ADDR_LEN); 237} 238 239static int 240udav_probe(device_t dev) 241{ 242 struct usb_attach_arg *uaa = device_get_ivars(dev); 243 244 if (uaa->usb_mode != USB_MODE_HOST) 245 return (ENXIO); 246 if (uaa->info.bConfigIndex != UDAV_CONFIG_INDEX) 247 return (ENXIO); 248 if (uaa->info.bIfaceIndex != UDAV_IFACE_INDEX) 249 return (ENXIO); 250 251 return (usbd_lookup_id_by_uaa(udav_devs, sizeof(udav_devs), uaa)); 252} 253 254static int 255udav_attach(device_t dev) 256{ 257 struct usb_attach_arg *uaa = device_get_ivars(dev); 258 struct udav_softc *sc = device_get_softc(dev); 259 struct usb_ether *ue = &sc->sc_ue; 260 uint8_t iface_index; 261 int error; 262 263 sc->sc_flags = USB_GET_DRIVER_INFO(uaa); 264 265 device_set_usb_desc(dev); 266 267 mtx_init(&sc->sc_mtx, device_get_nameunit(dev), NULL, MTX_DEF); 268 269 iface_index = UDAV_IFACE_INDEX; 270 error = usbd_transfer_setup(uaa->device, &iface_index, 271 sc->sc_xfer, udav_config, UDAV_N_TRANSFER, sc, &sc->sc_mtx); 272 if (error) { 273 device_printf(dev, "allocating USB transfers failed\n"); 274 goto detach; 275 } 276 277 /* 278 * The JP1082 has an unusable PHY and provides no link information. 279 */ 280 if (sc->sc_flags & UDAV_FLAG_NO_PHY) { 281 ue->ue_methods = &udav_ue_methods_nophy; 282 sc->sc_flags |= UDAV_FLAG_LINK; 283 } else { 284 ue->ue_methods = &udav_ue_methods; 285 } 286 287 ue->ue_sc = sc; 288 ue->ue_dev = dev; 289 ue->ue_udev = uaa->device; 290 ue->ue_mtx = &sc->sc_mtx; 291 292 error = uether_ifattach(ue); 293 if (error) { 294 device_printf(dev, "could not attach interface\n"); 295 goto detach; 296 } 297 298 return (0); /* success */ 299 300detach: 301 udav_detach(dev); 302 return (ENXIO); /* failure */ 303} 304 305static int 306udav_detach(device_t dev) 307{ 308 struct udav_softc *sc = device_get_softc(dev); 309 struct usb_ether *ue = &sc->sc_ue; 310 311 usbd_transfer_unsetup(sc->sc_xfer, UDAV_N_TRANSFER); 312 uether_ifdetach(ue); 313 mtx_destroy(&sc->sc_mtx); 314 315 return (0); 316} 317 318#if 0 319static int 320udav_mem_read(struct udav_softc *sc, uint16_t offset, void *buf, 321 int len) 322{ 323 struct usb_device_request req; 324 325 len &= 0xff; 326 327 req.bmRequestType = UT_READ_VENDOR_DEVICE; 328 req.bRequest = UDAV_REQ_MEM_READ; 329 USETW(req.wValue, 0x0000); 330 USETW(req.wIndex, offset); 331 USETW(req.wLength, len); 332 333 return (uether_do_request(&sc->sc_ue, &req, buf, 1000)); 334} 335 336static int 337udav_mem_write(struct udav_softc *sc, uint16_t offset, void *buf, 338 int len) 339{ 340 struct usb_device_request req; 341 342 len &= 0xff; 343 344 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 345 req.bRequest = UDAV_REQ_MEM_WRITE; 346 USETW(req.wValue, 0x0000); 347 USETW(req.wIndex, offset); 348 USETW(req.wLength, len); 349 350 return (uether_do_request(&sc->sc_ue, &req, buf, 1000)); 351} 352 353static int 354udav_mem_write1(struct udav_softc *sc, uint16_t offset, 355 uint8_t ch) 356{ 357 struct usb_device_request req; 358 359 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 360 req.bRequest = UDAV_REQ_MEM_WRITE1; 361 USETW(req.wValue, ch); 362 USETW(req.wIndex, offset); 363 USETW(req.wLength, 0x0000); 364 365 return (uether_do_request(&sc->sc_ue, &req, NULL, 1000)); 366} 367#endif 368 369static int 370udav_csr_read(struct udav_softc *sc, uint16_t offset, void *buf, int len) 371{ 372 struct usb_device_request req; 373 374 len &= 0xff; 375 376 req.bmRequestType = UT_READ_VENDOR_DEVICE; 377 req.bRequest = UDAV_REQ_REG_READ; 378 USETW(req.wValue, 0x0000); 379 USETW(req.wIndex, offset); 380 USETW(req.wLength, len); 381 382 return (uether_do_request(&sc->sc_ue, &req, buf, 1000)); 383} 384 385static int 386udav_csr_write(struct udav_softc *sc, uint16_t offset, void *buf, int len) 387{ 388 struct usb_device_request req; 389 390 offset &= 0xff; 391 len &= 0xff; 392 393 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 394 req.bRequest = UDAV_REQ_REG_WRITE; 395 USETW(req.wValue, 0x0000); 396 USETW(req.wIndex, offset); 397 USETW(req.wLength, len); 398 399 return (uether_do_request(&sc->sc_ue, &req, buf, 1000)); 400} 401 402static uint8_t 403udav_csr_read1(struct udav_softc *sc, uint16_t offset) 404{ 405 uint8_t val; 406 407 udav_csr_read(sc, offset, &val, 1); 408 return (val); 409} 410 411static int 412udav_csr_write1(struct udav_softc *sc, uint16_t offset, 413 uint8_t ch) 414{ 415 struct usb_device_request req; 416 417 offset &= 0xff; 418 419 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 420 req.bRequest = UDAV_REQ_REG_WRITE1; 421 USETW(req.wValue, ch); 422 USETW(req.wIndex, offset); 423 USETW(req.wLength, 0x0000); 424 425 return (uether_do_request(&sc->sc_ue, &req, NULL, 1000)); 426} 427 428static void 429udav_init(struct usb_ether *ue) 430{ 431 struct udav_softc *sc = ue->ue_sc; 432 struct ifnet *ifp = uether_getifp(&sc->sc_ue); 433 434 UDAV_LOCK_ASSERT(sc, MA_OWNED); 435 436 /* 437 * Cancel pending I/O 438 */ 439 udav_stop(ue); 440 441 /* set MAC address */ 442 udav_csr_write(sc, UDAV_PAR, IF_LLADDR(ifp), ETHER_ADDR_LEN); 443 444 /* initialize network control register */ 445 446 /* disable loopback */ 447 UDAV_CLRBIT(sc, UDAV_NCR, UDAV_NCR_LBK0 | UDAV_NCR_LBK1); 448 449 /* Initialize RX control register */ 450 UDAV_SETBIT(sc, UDAV_RCR, UDAV_RCR_DIS_LONG | UDAV_RCR_DIS_CRC); 451 452 /* load multicast filter and update promiscious mode bit */ 453 udav_setpromisc(ue); 454 455 /* enable RX */ 456 UDAV_SETBIT(sc, UDAV_RCR, UDAV_RCR_RXEN); 457 458 /* clear POWER_DOWN state of internal PHY */ 459 UDAV_SETBIT(sc, UDAV_GPCR, UDAV_GPCR_GEP_CNTL0); 460 UDAV_CLRBIT(sc, UDAV_GPR, UDAV_GPR_GEPIO0); 461 462 usbd_xfer_set_stall(sc->sc_xfer[UDAV_BULK_DT_WR]); 463 464 ifp->if_drv_flags |= IFF_DRV_RUNNING; 465 udav_start(ue); 466} 467 468static void 469udav_reset(struct udav_softc *sc) 470{ 471 int i; 472 473 /* Select PHY */ 474#if 1 475 /* 476 * XXX: force select internal phy. 477 * external phy routines are not tested. 478 */ 479 UDAV_CLRBIT(sc, UDAV_NCR, UDAV_NCR_EXT_PHY); 480#else 481 if (sc->sc_flags & UDAV_EXT_PHY) 482 UDAV_SETBIT(sc, UDAV_NCR, UDAV_NCR_EXT_PHY); 483 else 484 UDAV_CLRBIT(sc, UDAV_NCR, UDAV_NCR_EXT_PHY); 485#endif 486 487 UDAV_SETBIT(sc, UDAV_NCR, UDAV_NCR_RST); 488 489 for (i = 0; i < UDAV_TX_TIMEOUT; i++) { 490 if (!(udav_csr_read1(sc, UDAV_NCR) & UDAV_NCR_RST)) 491 break; 492 if (uether_pause(&sc->sc_ue, hz / 100)) 493 break; 494 } 495 496 uether_pause(&sc->sc_ue, hz / 100); 497} 498 499#define UDAV_BITS 6 500static void 501udav_setmulti(struct usb_ether *ue) 502{ 503 struct udav_softc *sc = ue->ue_sc; 504 struct ifnet *ifp = uether_getifp(&sc->sc_ue); 505 struct ifmultiaddr *ifma; 506 uint8_t hashtbl[8] = { 0, 0, 0, 0, 0, 0, 0, 0 }; 507 int h = 0; 508 509 UDAV_LOCK_ASSERT(sc, MA_OWNED); 510 511 if (ifp->if_flags & IFF_ALLMULTI || ifp->if_flags & IFF_PROMISC) { 512 UDAV_SETBIT(sc, UDAV_RCR, UDAV_RCR_ALL|UDAV_RCR_PRMSC); 513 return; 514 } 515 516 /* first, zot all the existing hash bits */ 517 memset(hashtbl, 0x00, sizeof(hashtbl)); 518 hashtbl[7] |= 0x80; /* broadcast address */ 519 udav_csr_write(sc, UDAV_MAR, hashtbl, sizeof(hashtbl)); 520 521 /* now program new ones */ 522 if_maddr_rlock(ifp); 523 TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) 524 { 525 if (ifma->ifma_addr->sa_family != AF_LINK) 526 continue; 527 h = ether_crc32_be(LLADDR((struct sockaddr_dl *) 528 ifma->ifma_addr), ETHER_ADDR_LEN) >> 26; 529 hashtbl[h / 8] |= 1 << (h % 8); 530 } 531 if_maddr_runlock(ifp); 532 533 /* disable all multicast */ 534 UDAV_CLRBIT(sc, UDAV_RCR, UDAV_RCR_ALL); 535 536 /* write hash value to the register */ 537 udav_csr_write(sc, UDAV_MAR, hashtbl, sizeof(hashtbl)); 538} 539 540static void 541udav_setpromisc(struct usb_ether *ue) 542{ 543 struct udav_softc *sc = ue->ue_sc; 544 struct ifnet *ifp = uether_getifp(&sc->sc_ue); 545 uint8_t rxmode; 546 547 rxmode = udav_csr_read1(sc, UDAV_RCR); 548 rxmode &= ~(UDAV_RCR_ALL | UDAV_RCR_PRMSC); 549 550 if (ifp->if_flags & IFF_PROMISC) 551 rxmode |= UDAV_RCR_ALL | UDAV_RCR_PRMSC; 552 else if (ifp->if_flags & IFF_ALLMULTI) 553 rxmode |= UDAV_RCR_ALL; 554 555 /* write new mode bits */ 556 udav_csr_write1(sc, UDAV_RCR, rxmode); 557} 558 559static void 560udav_start(struct usb_ether *ue) 561{ 562 struct udav_softc *sc = ue->ue_sc; 563 564 /* 565 * start the USB transfers, if not already started: 566 */ 567 usbd_transfer_start(sc->sc_xfer[UDAV_INTR_DT_RD]); 568 usbd_transfer_start(sc->sc_xfer[UDAV_BULK_DT_RD]); 569 usbd_transfer_start(sc->sc_xfer[UDAV_BULK_DT_WR]); 570} 571 572static void 573udav_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error) 574{ 575 struct udav_softc *sc = usbd_xfer_softc(xfer); 576 struct ifnet *ifp = uether_getifp(&sc->sc_ue); 577 struct usb_page_cache *pc; 578 struct mbuf *m; 579 int extra_len; 580 int temp_len; 581 uint8_t buf[2]; 582 583 switch (USB_GET_STATE(xfer)) { 584 case USB_ST_TRANSFERRED: 585 DPRINTFN(11, "transfer complete\n"); 586 if_inc_counter(ifp, IFCOUNTER_OPACKETS, 1); 587 588 /* FALLTHROUGH */ 589 case USB_ST_SETUP: 590tr_setup: 591 if ((sc->sc_flags & UDAV_FLAG_LINK) == 0) { 592 /* 593 * don't send anything if there is no link ! 594 */ 595 return; 596 } 597 IFQ_DRV_DEQUEUE(&ifp->if_snd, m); 598 599 if (m == NULL) 600 return; 601 if (m->m_pkthdr.len > MCLBYTES) 602 m->m_pkthdr.len = MCLBYTES; 603 if (m->m_pkthdr.len < UDAV_MIN_FRAME_LEN) { 604 extra_len = UDAV_MIN_FRAME_LEN - m->m_pkthdr.len; 605 } else { 606 extra_len = 0; 607 } 608 609 temp_len = (m->m_pkthdr.len + extra_len); 610 611 /* 612 * the frame length is specified in the first 2 bytes of the 613 * buffer 614 */ 615 buf[0] = (uint8_t)(temp_len); 616 buf[1] = (uint8_t)(temp_len >> 8); 617 618 temp_len += 2; 619 620 pc = usbd_xfer_get_frame(xfer, 0); 621 usbd_copy_in(pc, 0, buf, 2); 622 usbd_m_copy_in(pc, 2, m, 0, m->m_pkthdr.len); 623 624 if (extra_len) 625 usbd_frame_zero(pc, temp_len - extra_len, extra_len); 626 /* 627 * if there's a BPF listener, bounce a copy 628 * of this frame to him: 629 */ 630 BPF_MTAP(ifp, m); 631 632 m_freem(m); 633 634 usbd_xfer_set_frame_len(xfer, 0, temp_len); 635 usbd_transfer_submit(xfer); 636 return; 637 638 default: /* Error */ 639 DPRINTFN(11, "transfer error, %s\n", 640 usbd_errstr(error)); 641 642 if_inc_counter(ifp, IFCOUNTER_OERRORS, 1); 643 644 if (error != USB_ERR_CANCELLED) { 645 /* try to clear stall first */ 646 usbd_xfer_set_stall(xfer); 647 goto tr_setup; 648 } 649 return; 650 } 651} 652 653static void 654udav_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error) 655{ 656 struct udav_softc *sc = usbd_xfer_softc(xfer); 657 struct usb_ether *ue = &sc->sc_ue; 658 struct ifnet *ifp = uether_getifp(ue); 659 struct usb_page_cache *pc; 660 struct udav_rxpkt stat; 661 int len; 662 int actlen; 663 664 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL); 665 666 switch (USB_GET_STATE(xfer)) { 667 case USB_ST_TRANSFERRED: 668 669 if (actlen < (int)(sizeof(stat) + ETHER_CRC_LEN)) { 670 if_inc_counter(ifp, IFCOUNTER_IERRORS, 1); 671 goto tr_setup; 672 } 673 pc = usbd_xfer_get_frame(xfer, 0); 674 usbd_copy_out(pc, 0, &stat, sizeof(stat)); 675 actlen -= sizeof(stat); 676 len = min(actlen, le16toh(stat.pktlen)); 677 len -= ETHER_CRC_LEN; 678 679 if (stat.rxstat & UDAV_RSR_LCS) { 680 if_inc_counter(ifp, IFCOUNTER_COLLISIONS, 1); 681 goto tr_setup; 682 } 683 if (stat.rxstat & UDAV_RSR_ERR) { 684 if_inc_counter(ifp, IFCOUNTER_IERRORS, 1); 685 goto tr_setup; 686 } 687 uether_rxbuf(ue, pc, sizeof(stat), len); 688 /* FALLTHROUGH */ 689 case USB_ST_SETUP: 690tr_setup: 691 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 692 usbd_transfer_submit(xfer); 693 uether_rxflush(ue); 694 return; 695 696 default: /* Error */ 697 DPRINTF("bulk read error, %s\n", 698 usbd_errstr(error)); 699 700 if (error != USB_ERR_CANCELLED) { 701 /* try to clear stall first */ 702 usbd_xfer_set_stall(xfer); 703 goto tr_setup; 704 } 705 return; 706 } 707} 708 709static void 710udav_intr_callback(struct usb_xfer *xfer, usb_error_t error) 711{ 712 switch (USB_GET_STATE(xfer)) { 713 case USB_ST_TRANSFERRED: 714 case USB_ST_SETUP: 715tr_setup: 716 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 717 usbd_transfer_submit(xfer); 718 return; 719 720 default: /* Error */ 721 if (error != USB_ERR_CANCELLED) { 722 /* try to clear stall first */ 723 usbd_xfer_set_stall(xfer); 724 goto tr_setup; 725 } 726 return; 727 } 728} 729 730static void 731udav_stop(struct usb_ether *ue) 732{ 733 struct udav_softc *sc = ue->ue_sc; 734 struct ifnet *ifp = uether_getifp(&sc->sc_ue); 735 736 UDAV_LOCK_ASSERT(sc, MA_OWNED); 737 738 ifp->if_drv_flags &= ~IFF_DRV_RUNNING; 739 if (!(sc->sc_flags & UDAV_FLAG_NO_PHY)) 740 sc->sc_flags &= ~UDAV_FLAG_LINK; 741 742 /* 743 * stop all the transfers, if not already stopped: 744 */ 745 usbd_transfer_stop(sc->sc_xfer[UDAV_BULK_DT_WR]); 746 usbd_transfer_stop(sc->sc_xfer[UDAV_BULK_DT_RD]); 747 usbd_transfer_stop(sc->sc_xfer[UDAV_INTR_DT_RD]); 748 749 udav_reset(sc); 750} 751 752static int 753udav_ifmedia_upd(struct ifnet *ifp) 754{ 755 struct udav_softc *sc = ifp->if_softc; 756 struct mii_data *mii = GET_MII(sc); 757 struct mii_softc *miisc; 758 int error; 759 760 UDAV_LOCK_ASSERT(sc, MA_OWNED); 761 762 sc->sc_flags &= ~UDAV_FLAG_LINK; 763 LIST_FOREACH(miisc, &mii->mii_phys, mii_list) 764 PHY_RESET(miisc); 765 error = mii_mediachg(mii); 766 return (error); 767} 768 769static void 770udav_ifmedia_status(struct ifnet *ifp, struct ifmediareq *ifmr) 771{ 772 struct udav_softc *sc = ifp->if_softc; 773 struct mii_data *mii = GET_MII(sc); 774 775 UDAV_LOCK(sc); 776 mii_pollstat(mii); 777 ifmr->ifm_active = mii->mii_media_active; 778 ifmr->ifm_status = mii->mii_media_status; 779 UDAV_UNLOCK(sc); 780} 781 782static void 783udav_tick(struct usb_ether *ue) 784{ 785 struct udav_softc *sc = ue->ue_sc; 786 struct mii_data *mii = GET_MII(sc); 787 788 UDAV_LOCK_ASSERT(sc, MA_OWNED); 789 790 mii_tick(mii); 791 if ((sc->sc_flags & UDAV_FLAG_LINK) == 0 792 && mii->mii_media_status & IFM_ACTIVE && 793 IFM_SUBTYPE(mii->mii_media_active) != IFM_NONE) { 794 sc->sc_flags |= UDAV_FLAG_LINK; 795 udav_start(ue); 796 } 797} 798 799static int 800udav_miibus_readreg(device_t dev, int phy, int reg) 801{ 802 struct udav_softc *sc = device_get_softc(dev); 803 uint16_t data16; 804 uint8_t val[2]; 805 int locked; 806 807 /* XXX: one PHY only for the internal PHY */ 808 if (phy != 0) 809 return (0); 810 811 locked = mtx_owned(&sc->sc_mtx); 812 if (!locked) 813 UDAV_LOCK(sc); 814 815 /* select internal PHY and set PHY register address */ 816 udav_csr_write1(sc, UDAV_EPAR, 817 UDAV_EPAR_PHY_ADR0 | (reg & UDAV_EPAR_EROA_MASK)); 818 819 /* select PHY operation and start read command */ 820 udav_csr_write1(sc, UDAV_EPCR, UDAV_EPCR_EPOS | UDAV_EPCR_ERPRR); 821 822 /* XXX: should we wait? */ 823 824 /* end read command */ 825 UDAV_CLRBIT(sc, UDAV_EPCR, UDAV_EPCR_ERPRR); 826 827 /* retrieve the result from data registers */ 828 udav_csr_read(sc, UDAV_EPDRL, val, 2); 829 830 data16 = (val[0] | (val[1] << 8)); 831 832 DPRINTFN(11, "phy=%d reg=0x%04x => 0x%04x\n", 833 phy, reg, data16); 834 835 if (!locked) 836 UDAV_UNLOCK(sc); 837 return (data16); 838} 839 840static int 841udav_miibus_writereg(device_t dev, int phy, int reg, int data) 842{ 843 struct udav_softc *sc = device_get_softc(dev); 844 uint8_t val[2]; 845 int locked; 846 847 /* XXX: one PHY only for the internal PHY */ 848 if (phy != 0) 849 return (0); 850 851 locked = mtx_owned(&sc->sc_mtx); 852 if (!locked) 853 UDAV_LOCK(sc); 854 855 /* select internal PHY and set PHY register address */ 856 udav_csr_write1(sc, UDAV_EPAR, 857 UDAV_EPAR_PHY_ADR0 | (reg & UDAV_EPAR_EROA_MASK)); 858 859 /* put the value to the data registers */ 860 val[0] = (data & 0xff); 861 val[1] = (data >> 8) & 0xff; 862 udav_csr_write(sc, UDAV_EPDRL, val, 2); 863 864 /* select PHY operation and start write command */ 865 udav_csr_write1(sc, UDAV_EPCR, UDAV_EPCR_EPOS | UDAV_EPCR_ERPRW); 866 867 /* XXX: should we wait? */ 868 869 /* end write command */ 870 UDAV_CLRBIT(sc, UDAV_EPCR, UDAV_EPCR_ERPRW); 871 872 if (!locked) 873 UDAV_UNLOCK(sc); 874 return (0); 875} 876 877static void 878udav_miibus_statchg(device_t dev) 879{ 880 /* nothing to do */ 881} 882