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 * SPDX-License-Identifier: BSD-3-Clause 6 * 7 * Copyright (c) 2003 8 * Shingo WATANABE <nabe@nabechan.org>. All rights reserved. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. Neither the name of the author nor the names of any co-contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 * 34 */ 35 36 /* 37 * DM9601(DAVICOM USB to Ethernet MAC Controller with Integrated 10/100 PHY) 38 * The spec can be found at the following url. 39 * http://ptm2.cc.utu.fi/ftp/network/cards/DM9601/From_NET/DM9601-DS-P01-930914.pdf 40 */ 41 42 /* 43 * TODO: 44 * Interrupt Endpoint support 45 * External PHYs 46 */ 47 48 #include <sys/cdefs.h> 49 __FBSDID("$FreeBSD$"); 50 51 #include <sys/stdint.h> 52 #include <sys/stddef.h> 53 #include <sys/param.h> 54 #include <sys/queue.h> 55 #include <sys/types.h> 56 #include <sys/systm.h> 57 #include <sys/socket.h> 58 #include <sys/kernel.h> 59 #include <sys/bus.h> 60 #include <sys/module.h> 61 #include <sys/lock.h> 62 #include <sys/mutex.h> 63 #include <sys/condvar.h> 64 #include <sys/sysctl.h> 65 #include <sys/sx.h> 66 #include <sys/unistd.h> 67 #include <sys/callout.h> 68 #include <sys/malloc.h> 69 #include <sys/priv.h> 70 71 #include <net/if.h> 72 #include <net/if_var.h> 73 74 #include <dev/usb/usb.h> 75 #include <dev/usb/usbdi.h> 76 #include <dev/usb/usbdi_util.h> 77 #include "usbdevs.h" 78 79 #define USB_DEBUG_VAR udav_debug 80 #include <dev/usb/usb_debug.h> 81 #include <dev/usb/usb_process.h> 82 83 #include <dev/usb/net/usb_ethernet.h> 84 #include <dev/usb/net/if_udavreg.h> 85 86 /* prototypes */ 87 88 static device_probe_t udav_probe; 89 static device_attach_t udav_attach; 90 static device_detach_t udav_detach; 91 92 static usb_callback_t udav_bulk_write_callback; 93 static usb_callback_t udav_bulk_read_callback; 94 static usb_callback_t udav_intr_callback; 95 96 static uether_fn_t udav_attach_post; 97 static uether_fn_t udav_init; 98 static uether_fn_t udav_stop; 99 static uether_fn_t udav_start; 100 static uether_fn_t udav_tick; 101 static uether_fn_t udav_setmulti; 102 static uether_fn_t udav_setpromisc; 103 104 static int udav_csr_read(struct udav_softc *, uint16_t, void *, int); 105 static int udav_csr_write(struct udav_softc *, uint16_t, void *, int); 106 static uint8_t udav_csr_read1(struct udav_softc *, uint16_t); 107 static int udav_csr_write1(struct udav_softc *, uint16_t, uint8_t); 108 static void udav_reset(struct udav_softc *); 109 static int udav_ifmedia_upd(struct ifnet *); 110 static void udav_ifmedia_status(struct ifnet *, struct ifmediareq *); 111 112 static miibus_readreg_t udav_miibus_readreg; 113 static miibus_writereg_t udav_miibus_writereg; 114 static miibus_statchg_t udav_miibus_statchg; 115 116 static const struct usb_config udav_config[UDAV_N_TRANSFER] = { 117 118 [UDAV_BULK_DT_WR] = { 119 .type = UE_BULK, 120 .endpoint = UE_ADDR_ANY, 121 .direction = UE_DIR_OUT, 122 .bufsize = (MCLBYTES + 2), 123 .flags = {.pipe_bof = 1,.force_short_xfer = 1,}, 124 .callback = udav_bulk_write_callback, 125 .timeout = 10000, /* 10 seconds */ 126 }, 127 128 [UDAV_BULK_DT_RD] = { 129 .type = UE_BULK, 130 .endpoint = UE_ADDR_ANY, 131 .direction = UE_DIR_IN, 132 .bufsize = (MCLBYTES + 3), 133 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 134 .callback = udav_bulk_read_callback, 135 .timeout = 0, /* no timeout */ 136 }, 137 138 [UDAV_INTR_DT_RD] = { 139 .type = UE_INTERRUPT, 140 .endpoint = UE_ADDR_ANY, 141 .direction = UE_DIR_IN, 142 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 143 .bufsize = 0, /* use wMaxPacketSize */ 144 .callback = udav_intr_callback, 145 }, 146 }; 147 148 static device_method_t udav_methods[] = { 149 /* Device interface */ 150 DEVMETHOD(device_probe, udav_probe), 151 DEVMETHOD(device_attach, udav_attach), 152 DEVMETHOD(device_detach, udav_detach), 153 154 /* MII interface */ 155 DEVMETHOD(miibus_readreg, udav_miibus_readreg), 156 DEVMETHOD(miibus_writereg, udav_miibus_writereg), 157 DEVMETHOD(miibus_statchg, udav_miibus_statchg), 158 159 DEVMETHOD_END 160 }; 161 162 static driver_t udav_driver = { 163 .name = "udav", 164 .methods = udav_methods, 165 .size = sizeof(struct udav_softc), 166 }; 167 168 static devclass_t udav_devclass; 169 170 static const STRUCT_USB_HOST_ID udav_devs[] = { 171 /* ShanTou DM9601 USB NIC */ 172 {USB_VPI(USB_VENDOR_SHANTOU, USB_PRODUCT_SHANTOU_DM9601, 0)}, 173 /* ShanTou ST268 USB NIC */ 174 {USB_VPI(USB_VENDOR_SHANTOU, USB_PRODUCT_SHANTOU_ST268, 0)}, 175 /* Corega USB-TXC */ 176 {USB_VPI(USB_VENDOR_COREGA, USB_PRODUCT_COREGA_FETHER_USB_TXC, 0)}, 177 /* ShanTou AMD8515 USB NIC */ 178 {USB_VPI(USB_VENDOR_SHANTOU, USB_PRODUCT_SHANTOU_ADM8515, 0)}, 179 /* Kontron AG USB Ethernet */ 180 {USB_VPI(USB_VENDOR_KONTRON, USB_PRODUCT_KONTRON_DM9601, 0)}, 181 {USB_VPI(USB_VENDOR_KONTRON, USB_PRODUCT_KONTRON_JP1082, 182 UDAV_FLAG_NO_PHY)}, 183 }; 184 185 DRIVER_MODULE(udav, uhub, udav_driver, udav_devclass, NULL, 0); 186 DRIVER_MODULE(miibus, udav, miibus_driver, miibus_devclass, 0, 0); 187 MODULE_DEPEND(udav, uether, 1, 1, 1); 188 MODULE_DEPEND(udav, usb, 1, 1, 1); 189 MODULE_DEPEND(udav, ether, 1, 1, 1); 190 MODULE_DEPEND(udav, miibus, 1, 1, 1); 191 MODULE_VERSION(udav, 1); 192 USB_PNP_HOST_INFO(udav_devs); 193 194 static const struct usb_ether_methods udav_ue_methods = { 195 .ue_attach_post = udav_attach_post, 196 .ue_start = udav_start, 197 .ue_init = udav_init, 198 .ue_stop = udav_stop, 199 .ue_tick = udav_tick, 200 .ue_setmulti = udav_setmulti, 201 .ue_setpromisc = udav_setpromisc, 202 .ue_mii_upd = udav_ifmedia_upd, 203 .ue_mii_sts = udav_ifmedia_status, 204 }; 205 206 static const struct usb_ether_methods udav_ue_methods_nophy = { 207 .ue_attach_post = udav_attach_post, 208 .ue_start = udav_start, 209 .ue_init = udav_init, 210 .ue_stop = udav_stop, 211 .ue_setmulti = udav_setmulti, 212 .ue_setpromisc = udav_setpromisc, 213 }; 214 215 #ifdef USB_DEBUG 216 static int udav_debug = 0; 217 218 static SYSCTL_NODE(_hw_usb, OID_AUTO, udav, CTLFLAG_RW, 0, "USB udav"); 219 SYSCTL_INT(_hw_usb_udav, OID_AUTO, debug, CTLFLAG_RWTUN, &udav_debug, 0, 220 "Debug level"); 221 #endif 222 223 #define UDAV_SETBIT(sc, reg, x) \ 224 udav_csr_write1(sc, reg, udav_csr_read1(sc, reg) | (x)) 225 226 #define UDAV_CLRBIT(sc, reg, x) \ 227 udav_csr_write1(sc, reg, udav_csr_read1(sc, reg) & ~(x)) 228 229 static void 230 udav_attach_post(struct usb_ether *ue) 231 { 232 struct udav_softc *sc = uether_getsc(ue); 233 234 /* reset the adapter */ 235 udav_reset(sc); 236 237 /* Get Ethernet Address */ 238 udav_csr_read(sc, UDAV_PAR, ue->ue_eaddr, ETHER_ADDR_LEN); 239 } 240 241 static int 242 udav_probe(device_t dev) 243 { 244 struct usb_attach_arg *uaa = device_get_ivars(dev); 245 246 if (uaa->usb_mode != USB_MODE_HOST) 247 return (ENXIO); 248 if (uaa->info.bConfigIndex != UDAV_CONFIG_INDEX) 249 return (ENXIO); 250 if (uaa->info.bIfaceIndex != UDAV_IFACE_INDEX) 251 return (ENXIO); 252 253 return (usbd_lookup_id_by_uaa(udav_devs, sizeof(udav_devs), uaa)); 254 } 255 256 static int 257 udav_attach(device_t dev) 258 { 259 struct usb_attach_arg *uaa = device_get_ivars(dev); 260 struct udav_softc *sc = device_get_softc(dev); 261 struct usb_ether *ue = &sc->sc_ue; 262 uint8_t iface_index; 263 int error; 264 265 sc->sc_flags = USB_GET_DRIVER_INFO(uaa); 266 267 device_set_usb_desc(dev); 268 269 mtx_init(&sc->sc_mtx, device_get_nameunit(dev), NULL, MTX_DEF); 270 271 iface_index = UDAV_IFACE_INDEX; 272 error = usbd_transfer_setup(uaa->device, &iface_index, 273 sc->sc_xfer, udav_config, UDAV_N_TRANSFER, sc, &sc->sc_mtx); 274 if (error) { 275 device_printf(dev, "allocating USB transfers failed\n"); 276 goto detach; 277 } 278 279 /* 280 * The JP1082 has an unusable PHY and provides no link information. 281 */ 282 if (sc->sc_flags & UDAV_FLAG_NO_PHY) { 283 ue->ue_methods = &udav_ue_methods_nophy; 284 sc->sc_flags |= UDAV_FLAG_LINK; 285 } else { 286 ue->ue_methods = &udav_ue_methods; 287 } 288 289 ue->ue_sc = sc; 290 ue->ue_dev = dev; 291 ue->ue_udev = uaa->device; 292 ue->ue_mtx = &sc->sc_mtx; 293 294 error = uether_ifattach(ue); 295 if (error) { 296 device_printf(dev, "could not attach interface\n"); 297 goto detach; 298 } 299 300 return (0); /* success */ 301 302 detach: 303 udav_detach(dev); 304 return (ENXIO); /* failure */ 305 } 306 307 static int 308 udav_detach(device_t dev) 309 { 310 struct udav_softc *sc = device_get_softc(dev); 311 struct usb_ether *ue = &sc->sc_ue; 312 313 usbd_transfer_unsetup(sc->sc_xfer, UDAV_N_TRANSFER); 314 uether_ifdetach(ue); 315 mtx_destroy(&sc->sc_mtx); 316 317 return (0); 318 } 319 320 #if 0 321 static int 322 udav_mem_read(struct udav_softc *sc, uint16_t offset, void *buf, 323 int len) 324 { 325 struct usb_device_request req; 326 327 len &= 0xff; 328 329 req.bmRequestType = UT_READ_VENDOR_DEVICE; 330 req.bRequest = UDAV_REQ_MEM_READ; 331 USETW(req.wValue, 0x0000); 332 USETW(req.wIndex, offset); 333 USETW(req.wLength, len); 334 335 return (uether_do_request(&sc->sc_ue, &req, buf, 1000)); 336 } 337 338 static int 339 udav_mem_write(struct udav_softc *sc, uint16_t offset, void *buf, 340 int len) 341 { 342 struct usb_device_request req; 343 344 len &= 0xff; 345 346 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 347 req.bRequest = UDAV_REQ_MEM_WRITE; 348 USETW(req.wValue, 0x0000); 349 USETW(req.wIndex, offset); 350 USETW(req.wLength, len); 351 352 return (uether_do_request(&sc->sc_ue, &req, buf, 1000)); 353 } 354 355 static int 356 udav_mem_write1(struct udav_softc *sc, uint16_t offset, 357 uint8_t ch) 358 { 359 struct usb_device_request req; 360 361 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 362 req.bRequest = UDAV_REQ_MEM_WRITE1; 363 USETW(req.wValue, ch); 364 USETW(req.wIndex, offset); 365 USETW(req.wLength, 0x0000); 366 367 return (uether_do_request(&sc->sc_ue, &req, NULL, 1000)); 368 } 369 #endif 370 371 static int 372 udav_csr_read(struct udav_softc *sc, uint16_t offset, void *buf, int len) 373 { 374 struct usb_device_request req; 375 376 len &= 0xff; 377 378 req.bmRequestType = UT_READ_VENDOR_DEVICE; 379 req.bRequest = UDAV_REQ_REG_READ; 380 USETW(req.wValue, 0x0000); 381 USETW(req.wIndex, offset); 382 USETW(req.wLength, len); 383 384 return (uether_do_request(&sc->sc_ue, &req, buf, 1000)); 385 } 386 387 static int 388 udav_csr_write(struct udav_softc *sc, uint16_t offset, void *buf, int len) 389 { 390 struct usb_device_request req; 391 392 offset &= 0xff; 393 len &= 0xff; 394 395 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 396 req.bRequest = UDAV_REQ_REG_WRITE; 397 USETW(req.wValue, 0x0000); 398 USETW(req.wIndex, offset); 399 USETW(req.wLength, len); 400 401 return (uether_do_request(&sc->sc_ue, &req, buf, 1000)); 402 } 403 404 static uint8_t 405 udav_csr_read1(struct udav_softc *sc, uint16_t offset) 406 { 407 uint8_t val; 408 409 udav_csr_read(sc, offset, &val, 1); 410 return (val); 411 } 412 413 static int 414 udav_csr_write1(struct udav_softc *sc, uint16_t offset, 415 uint8_t ch) 416 { 417 struct usb_device_request req; 418 419 offset &= 0xff; 420 421 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 422 req.bRequest = UDAV_REQ_REG_WRITE1; 423 USETW(req.wValue, ch); 424 USETW(req.wIndex, offset); 425 USETW(req.wLength, 0x0000); 426 427 return (uether_do_request(&sc->sc_ue, &req, NULL, 1000)); 428 } 429 430 static void 431 udav_init(struct usb_ether *ue) 432 { 433 struct udav_softc *sc = ue->ue_sc; 434 struct ifnet *ifp = uether_getifp(&sc->sc_ue); 435 436 UDAV_LOCK_ASSERT(sc, MA_OWNED); 437 438 /* 439 * Cancel pending I/O 440 */ 441 udav_stop(ue); 442 443 /* set MAC address */ 444 udav_csr_write(sc, UDAV_PAR, IF_LLADDR(ifp), ETHER_ADDR_LEN); 445 446 /* initialize network control register */ 447 448 /* disable loopback */ 449 UDAV_CLRBIT(sc, UDAV_NCR, UDAV_NCR_LBK0 | UDAV_NCR_LBK1); 450 451 /* Initialize RX control register */ 452 UDAV_SETBIT(sc, UDAV_RCR, UDAV_RCR_DIS_LONG | UDAV_RCR_DIS_CRC); 453 454 /* load multicast filter and update promiscious mode bit */ 455 udav_setpromisc(ue); 456 457 /* enable RX */ 458 UDAV_SETBIT(sc, UDAV_RCR, UDAV_RCR_RXEN); 459 460 /* clear POWER_DOWN state of internal PHY */ 461 UDAV_SETBIT(sc, UDAV_GPCR, UDAV_GPCR_GEP_CNTL0); 462 UDAV_CLRBIT(sc, UDAV_GPR, UDAV_GPR_GEPIO0); 463 464 usbd_xfer_set_stall(sc->sc_xfer[UDAV_BULK_DT_WR]); 465 466 ifp->if_drv_flags |= IFF_DRV_RUNNING; 467 udav_start(ue); 468 } 469 470 static void 471 udav_reset(struct udav_softc *sc) 472 { 473 int i; 474 475 /* Select PHY */ 476 #if 1 477 /* 478 * XXX: force select internal phy. 479 * external phy routines are not tested. 480 */ 481 UDAV_CLRBIT(sc, UDAV_NCR, UDAV_NCR_EXT_PHY); 482 #else 483 if (sc->sc_flags & UDAV_EXT_PHY) 484 UDAV_SETBIT(sc, UDAV_NCR, UDAV_NCR_EXT_PHY); 485 else 486 UDAV_CLRBIT(sc, UDAV_NCR, UDAV_NCR_EXT_PHY); 487 #endif 488 489 UDAV_SETBIT(sc, UDAV_NCR, UDAV_NCR_RST); 490 491 for (i = 0; i < UDAV_TX_TIMEOUT; i++) { 492 if (!(udav_csr_read1(sc, UDAV_NCR) & UDAV_NCR_RST)) 493 break; 494 if (uether_pause(&sc->sc_ue, hz / 100)) 495 break; 496 } 497 498 uether_pause(&sc->sc_ue, hz / 100); 499 } 500 501 #define UDAV_BITS 6 502 static void 503 udav_setmulti(struct usb_ether *ue) 504 { 505 struct udav_softc *sc = ue->ue_sc; 506 struct ifnet *ifp = uether_getifp(&sc->sc_ue); 507 struct ifmultiaddr *ifma; 508 uint8_t hashtbl[8] = { 0, 0, 0, 0, 0, 0, 0, 0 }; 509 int h = 0; 510 511 UDAV_LOCK_ASSERT(sc, MA_OWNED); 512 513 if (ifp->if_flags & IFF_ALLMULTI || ifp->if_flags & IFF_PROMISC) { 514 UDAV_SETBIT(sc, UDAV_RCR, UDAV_RCR_ALL|UDAV_RCR_PRMSC); 515 return; 516 } 517 518 /* first, zot all the existing hash bits */ 519 memset(hashtbl, 0x00, sizeof(hashtbl)); 520 hashtbl[7] |= 0x80; /* broadcast address */ 521 udav_csr_write(sc, UDAV_MAR, hashtbl, sizeof(hashtbl)); 522 523 /* now program new ones */ 524 if_maddr_rlock(ifp); 525 CK_STAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) 526 { 527 if (ifma->ifma_addr->sa_family != AF_LINK) 528 continue; 529 h = ether_crc32_be(LLADDR((struct sockaddr_dl *) 530 ifma->ifma_addr), ETHER_ADDR_LEN) >> 26; 531 hashtbl[h / 8] |= 1 << (h % 8); 532 } 533 if_maddr_runlock(ifp); 534 535 /* disable all multicast */ 536 UDAV_CLRBIT(sc, UDAV_RCR, UDAV_RCR_ALL); 537 538 /* write hash value to the register */ 539 udav_csr_write(sc, UDAV_MAR, hashtbl, sizeof(hashtbl)); 540 } 541 542 static void 543 udav_setpromisc(struct usb_ether *ue) 544 { 545 struct udav_softc *sc = ue->ue_sc; 546 struct ifnet *ifp = uether_getifp(&sc->sc_ue); 547 uint8_t rxmode; 548 549 rxmode = udav_csr_read1(sc, UDAV_RCR); 550 rxmode &= ~(UDAV_RCR_ALL | UDAV_RCR_PRMSC); 551 552 if (ifp->if_flags & IFF_PROMISC) 553 rxmode |= UDAV_RCR_ALL | UDAV_RCR_PRMSC; 554 else if (ifp->if_flags & IFF_ALLMULTI) 555 rxmode |= UDAV_RCR_ALL; 556 557 /* write new mode bits */ 558 udav_csr_write1(sc, UDAV_RCR, rxmode); 559 } 560 561 static void 562 udav_start(struct usb_ether *ue) 563 { 564 struct udav_softc *sc = ue->ue_sc; 565 566 /* 567 * start the USB transfers, if not already started: 568 */ 569 usbd_transfer_start(sc->sc_xfer[UDAV_INTR_DT_RD]); 570 usbd_transfer_start(sc->sc_xfer[UDAV_BULK_DT_RD]); 571 usbd_transfer_start(sc->sc_xfer[UDAV_BULK_DT_WR]); 572 } 573 574 static void 575 udav_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error) 576 { 577 struct udav_softc *sc = usbd_xfer_softc(xfer); 578 struct ifnet *ifp = uether_getifp(&sc->sc_ue); 579 struct usb_page_cache *pc; 580 struct mbuf *m; 581 int extra_len; 582 int temp_len; 583 uint8_t buf[2]; 584 585 switch (USB_GET_STATE(xfer)) { 586 case USB_ST_TRANSFERRED: 587 DPRINTFN(11, "transfer complete\n"); 588 if_inc_counter(ifp, IFCOUNTER_OPACKETS, 1); 589 590 /* FALLTHROUGH */ 591 case USB_ST_SETUP: 592 tr_setup: 593 if ((sc->sc_flags & UDAV_FLAG_LINK) == 0) { 594 /* 595 * don't send anything if there is no link ! 596 */ 597 return; 598 } 599 IFQ_DRV_DEQUEUE(&ifp->if_snd, m); 600 601 if (m == NULL) 602 return; 603 if (m->m_pkthdr.len > MCLBYTES) 604 m->m_pkthdr.len = MCLBYTES; 605 if (m->m_pkthdr.len < UDAV_MIN_FRAME_LEN) { 606 extra_len = UDAV_MIN_FRAME_LEN - m->m_pkthdr.len; 607 } else { 608 extra_len = 0; 609 } 610 611 temp_len = (m->m_pkthdr.len + extra_len); 612 613 /* 614 * the frame length is specified in the first 2 bytes of the 615 * buffer 616 */ 617 buf[0] = (uint8_t)(temp_len); 618 buf[1] = (uint8_t)(temp_len >> 8); 619 620 temp_len += 2; 621 622 pc = usbd_xfer_get_frame(xfer, 0); 623 usbd_copy_in(pc, 0, buf, 2); 624 usbd_m_copy_in(pc, 2, m, 0, m->m_pkthdr.len); 625 626 if (extra_len) 627 usbd_frame_zero(pc, temp_len - extra_len, extra_len); 628 /* 629 * if there's a BPF listener, bounce a copy 630 * of this frame to him: 631 */ 632 BPF_MTAP(ifp, m); 633 634 m_freem(m); 635 636 usbd_xfer_set_frame_len(xfer, 0, temp_len); 637 usbd_transfer_submit(xfer); 638 return; 639 640 default: /* Error */ 641 DPRINTFN(11, "transfer error, %s\n", 642 usbd_errstr(error)); 643 644 if_inc_counter(ifp, IFCOUNTER_OERRORS, 1); 645 646 if (error != USB_ERR_CANCELLED) { 647 /* try to clear stall first */ 648 usbd_xfer_set_stall(xfer); 649 goto tr_setup; 650 } 651 return; 652 } 653 } 654 655 static void 656 udav_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error) 657 { 658 struct udav_softc *sc = usbd_xfer_softc(xfer); 659 struct usb_ether *ue = &sc->sc_ue; 660 struct ifnet *ifp = uether_getifp(ue); 661 struct usb_page_cache *pc; 662 struct udav_rxpkt stat; 663 int len; 664 int actlen; 665 666 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL); 667 668 switch (USB_GET_STATE(xfer)) { 669 case USB_ST_TRANSFERRED: 670 671 if (actlen < (int)(sizeof(stat) + ETHER_CRC_LEN)) { 672 if_inc_counter(ifp, IFCOUNTER_IERRORS, 1); 673 goto tr_setup; 674 } 675 pc = usbd_xfer_get_frame(xfer, 0); 676 usbd_copy_out(pc, 0, &stat, sizeof(stat)); 677 actlen -= sizeof(stat); 678 len = min(actlen, le16toh(stat.pktlen)); 679 len -= ETHER_CRC_LEN; 680 681 if (stat.rxstat & UDAV_RSR_LCS) { 682 if_inc_counter(ifp, IFCOUNTER_COLLISIONS, 1); 683 goto tr_setup; 684 } 685 if (stat.rxstat & UDAV_RSR_ERR) { 686 if_inc_counter(ifp, IFCOUNTER_IERRORS, 1); 687 goto tr_setup; 688 } 689 uether_rxbuf(ue, pc, sizeof(stat), len); 690 /* FALLTHROUGH */ 691 case USB_ST_SETUP: 692 tr_setup: 693 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 694 usbd_transfer_submit(xfer); 695 uether_rxflush(ue); 696 return; 697 698 default: /* Error */ 699 DPRINTF("bulk read error, %s\n", 700 usbd_errstr(error)); 701 702 if (error != USB_ERR_CANCELLED) { 703 /* try to clear stall first */ 704 usbd_xfer_set_stall(xfer); 705 goto tr_setup; 706 } 707 return; 708 } 709 } 710 711 static void 712 udav_intr_callback(struct usb_xfer *xfer, usb_error_t error) 713 { 714 switch (USB_GET_STATE(xfer)) { 715 case USB_ST_TRANSFERRED: 716 case USB_ST_SETUP: 717 tr_setup: 718 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 719 usbd_transfer_submit(xfer); 720 return; 721 722 default: /* Error */ 723 if (error != USB_ERR_CANCELLED) { 724 /* try to clear stall first */ 725 usbd_xfer_set_stall(xfer); 726 goto tr_setup; 727 } 728 return; 729 } 730 } 731 732 static void 733 udav_stop(struct usb_ether *ue) 734 { 735 struct udav_softc *sc = ue->ue_sc; 736 struct ifnet *ifp = uether_getifp(&sc->sc_ue); 737 738 UDAV_LOCK_ASSERT(sc, MA_OWNED); 739 740 ifp->if_drv_flags &= ~IFF_DRV_RUNNING; 741 if (!(sc->sc_flags & UDAV_FLAG_NO_PHY)) 742 sc->sc_flags &= ~UDAV_FLAG_LINK; 743 744 /* 745 * stop all the transfers, if not already stopped: 746 */ 747 usbd_transfer_stop(sc->sc_xfer[UDAV_BULK_DT_WR]); 748 usbd_transfer_stop(sc->sc_xfer[UDAV_BULK_DT_RD]); 749 usbd_transfer_stop(sc->sc_xfer[UDAV_INTR_DT_RD]); 750 751 udav_reset(sc); 752 } 753 754 static int 755 udav_ifmedia_upd(struct ifnet *ifp) 756 { 757 struct udav_softc *sc = ifp->if_softc; 758 struct mii_data *mii = GET_MII(sc); 759 struct mii_softc *miisc; 760 int error; 761 762 UDAV_LOCK_ASSERT(sc, MA_OWNED); 763 764 sc->sc_flags &= ~UDAV_FLAG_LINK; 765 LIST_FOREACH(miisc, &mii->mii_phys, mii_list) 766 PHY_RESET(miisc); 767 error = mii_mediachg(mii); 768 return (error); 769 } 770 771 static void 772 udav_ifmedia_status(struct ifnet *ifp, struct ifmediareq *ifmr) 773 { 774 struct udav_softc *sc = ifp->if_softc; 775 struct mii_data *mii = GET_MII(sc); 776 777 UDAV_LOCK(sc); 778 mii_pollstat(mii); 779 ifmr->ifm_active = mii->mii_media_active; 780 ifmr->ifm_status = mii->mii_media_status; 781 UDAV_UNLOCK(sc); 782 } 783 784 static void 785 udav_tick(struct usb_ether *ue) 786 { 787 struct udav_softc *sc = ue->ue_sc; 788 struct mii_data *mii = GET_MII(sc); 789 790 UDAV_LOCK_ASSERT(sc, MA_OWNED); 791 792 mii_tick(mii); 793 if ((sc->sc_flags & UDAV_FLAG_LINK) == 0 794 && mii->mii_media_status & IFM_ACTIVE && 795 IFM_SUBTYPE(mii->mii_media_active) != IFM_NONE) { 796 sc->sc_flags |= UDAV_FLAG_LINK; 797 udav_start(ue); 798 } 799 } 800 801 static int 802 udav_miibus_readreg(device_t dev, int phy, int reg) 803 { 804 struct udav_softc *sc = device_get_softc(dev); 805 uint16_t data16; 806 uint8_t val[2]; 807 int locked; 808 809 /* XXX: one PHY only for the internal PHY */ 810 if (phy != 0) 811 return (0); 812 813 locked = mtx_owned(&sc->sc_mtx); 814 if (!locked) 815 UDAV_LOCK(sc); 816 817 /* select internal PHY and set PHY register address */ 818 udav_csr_write1(sc, UDAV_EPAR, 819 UDAV_EPAR_PHY_ADR0 | (reg & UDAV_EPAR_EROA_MASK)); 820 821 /* select PHY operation and start read command */ 822 udav_csr_write1(sc, UDAV_EPCR, UDAV_EPCR_EPOS | UDAV_EPCR_ERPRR); 823 824 /* XXX: should we wait? */ 825 826 /* end read command */ 827 UDAV_CLRBIT(sc, UDAV_EPCR, UDAV_EPCR_ERPRR); 828 829 /* retrieve the result from data registers */ 830 udav_csr_read(sc, UDAV_EPDRL, val, 2); 831 832 data16 = (val[0] | (val[1] << 8)); 833 834 DPRINTFN(11, "phy=%d reg=0x%04x => 0x%04x\n", 835 phy, reg, data16); 836 837 if (!locked) 838 UDAV_UNLOCK(sc); 839 return (data16); 840 } 841 842 static int 843 udav_miibus_writereg(device_t dev, int phy, int reg, int data) 844 { 845 struct udav_softc *sc = device_get_softc(dev); 846 uint8_t val[2]; 847 int locked; 848 849 /* XXX: one PHY only for the internal PHY */ 850 if (phy != 0) 851 return (0); 852 853 locked = mtx_owned(&sc->sc_mtx); 854 if (!locked) 855 UDAV_LOCK(sc); 856 857 /* select internal PHY and set PHY register address */ 858 udav_csr_write1(sc, UDAV_EPAR, 859 UDAV_EPAR_PHY_ADR0 | (reg & UDAV_EPAR_EROA_MASK)); 860 861 /* put the value to the data registers */ 862 val[0] = (data & 0xff); 863 val[1] = (data >> 8) & 0xff; 864 udav_csr_write(sc, UDAV_EPDRL, val, 2); 865 866 /* select PHY operation and start write command */ 867 udav_csr_write1(sc, UDAV_EPCR, UDAV_EPCR_EPOS | UDAV_EPCR_ERPRW); 868 869 /* XXX: should we wait? */ 870 871 /* end write command */ 872 UDAV_CLRBIT(sc, UDAV_EPCR, UDAV_EPCR_ERPRW); 873 874 if (!locked) 875 UDAV_UNLOCK(sc); 876 return (0); 877 } 878 879 static void 880 udav_miibus_statchg(device_t dev) 881 { 882 /* nothing to do */ 883 } 884