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 #include <net/if_media.h> 74 75 #include <dev/mii/mii.h> 76 #include <dev/mii/miivar.h> 77 78 #include <dev/usb/usb.h> 79 #include <dev/usb/usbdi.h> 80 #include <dev/usb/usbdi_util.h> 81 #include "usbdevs.h" 82 83 #include "miibus_if.h" 84 85 #define USB_DEBUG_VAR udav_debug 86 #include <dev/usb/usb_debug.h> 87 #include <dev/usb/usb_process.h> 88 89 #include <dev/usb/net/usb_ethernet.h> 90 #include <dev/usb/net/if_udavreg.h> 91 92 /* prototypes */ 93 94 static device_probe_t udav_probe; 95 static device_attach_t udav_attach; 96 static device_detach_t udav_detach; 97 98 static usb_callback_t udav_bulk_write_callback; 99 static usb_callback_t udav_bulk_read_callback; 100 static usb_callback_t udav_intr_callback; 101 102 static uether_fn_t udav_attach_post; 103 static uether_fn_t udav_init; 104 static uether_fn_t udav_stop; 105 static uether_fn_t udav_start; 106 static uether_fn_t udav_tick; 107 static uether_fn_t udav_setmulti; 108 static uether_fn_t udav_setpromisc; 109 110 static int udav_csr_read(struct udav_softc *, uint16_t, void *, int); 111 static int udav_csr_write(struct udav_softc *, uint16_t, void *, int); 112 static uint8_t udav_csr_read1(struct udav_softc *, uint16_t); 113 static int udav_csr_write1(struct udav_softc *, uint16_t, uint8_t); 114 static void udav_reset(struct udav_softc *); 115 static int udav_ifmedia_upd(struct ifnet *); 116 static void udav_ifmedia_status(struct ifnet *, struct ifmediareq *); 117 118 static miibus_readreg_t udav_miibus_readreg; 119 static miibus_writereg_t udav_miibus_writereg; 120 static miibus_statchg_t udav_miibus_statchg; 121 122 static const struct usb_config udav_config[UDAV_N_TRANSFER] = { 123 [UDAV_BULK_DT_WR] = { 124 .type = UE_BULK, 125 .endpoint = UE_ADDR_ANY, 126 .direction = UE_DIR_OUT, 127 .bufsize = (MCLBYTES + 2), 128 .flags = {.pipe_bof = 1,.force_short_xfer = 1,}, 129 .callback = udav_bulk_write_callback, 130 .timeout = 10000, /* 10 seconds */ 131 }, 132 133 [UDAV_BULK_DT_RD] = { 134 .type = UE_BULK, 135 .endpoint = UE_ADDR_ANY, 136 .direction = UE_DIR_IN, 137 .bufsize = (MCLBYTES + 3), 138 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 139 .callback = udav_bulk_read_callback, 140 .timeout = 0, /* no timeout */ 141 }, 142 143 [UDAV_INTR_DT_RD] = { 144 .type = UE_INTERRUPT, 145 .endpoint = UE_ADDR_ANY, 146 .direction = UE_DIR_IN, 147 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 148 .bufsize = 0, /* use wMaxPacketSize */ 149 .callback = udav_intr_callback, 150 }, 151 }; 152 153 static device_method_t udav_methods[] = { 154 /* Device interface */ 155 DEVMETHOD(device_probe, udav_probe), 156 DEVMETHOD(device_attach, udav_attach), 157 DEVMETHOD(device_detach, udav_detach), 158 159 /* MII interface */ 160 DEVMETHOD(miibus_readreg, udav_miibus_readreg), 161 DEVMETHOD(miibus_writereg, udav_miibus_writereg), 162 DEVMETHOD(miibus_statchg, udav_miibus_statchg), 163 164 DEVMETHOD_END 165 }; 166 167 static driver_t udav_driver = { 168 .name = "udav", 169 .methods = udav_methods, 170 .size = sizeof(struct udav_softc), 171 }; 172 173 static devclass_t udav_devclass; 174 175 static const STRUCT_USB_HOST_ID udav_devs[] = { 176 /* ShanTou DM9601 USB NIC */ 177 {USB_VPI(USB_VENDOR_SHANTOU, USB_PRODUCT_SHANTOU_DM9601, 0)}, 178 /* ShanTou ST268 USB NIC */ 179 {USB_VPI(USB_VENDOR_SHANTOU, USB_PRODUCT_SHANTOU_ST268, 0)}, 180 /* Corega USB-TXC */ 181 {USB_VPI(USB_VENDOR_COREGA, USB_PRODUCT_COREGA_FETHER_USB_TXC, 0)}, 182 /* ShanTou AMD8515 USB NIC */ 183 {USB_VPI(USB_VENDOR_SHANTOU, USB_PRODUCT_SHANTOU_ADM8515, 0)}, 184 /* Kontron AG USB Ethernet */ 185 {USB_VPI(USB_VENDOR_KONTRON, USB_PRODUCT_KONTRON_DM9601, 0)}, 186 {USB_VPI(USB_VENDOR_KONTRON, USB_PRODUCT_KONTRON_JP1082, 187 UDAV_FLAG_NO_PHY)}, 188 }; 189 190 DRIVER_MODULE(udav, uhub, udav_driver, udav_devclass, NULL, 0); 191 DRIVER_MODULE(miibus, udav, miibus_driver, miibus_devclass, 0, 0); 192 MODULE_DEPEND(udav, uether, 1, 1, 1); 193 MODULE_DEPEND(udav, usb, 1, 1, 1); 194 MODULE_DEPEND(udav, ether, 1, 1, 1); 195 MODULE_DEPEND(udav, miibus, 1, 1, 1); 196 MODULE_VERSION(udav, 1); 197 USB_PNP_HOST_INFO(udav_devs); 198 199 static const struct usb_ether_methods udav_ue_methods = { 200 .ue_attach_post = udav_attach_post, 201 .ue_start = udav_start, 202 .ue_init = udav_init, 203 .ue_stop = udav_stop, 204 .ue_tick = udav_tick, 205 .ue_setmulti = udav_setmulti, 206 .ue_setpromisc = udav_setpromisc, 207 .ue_mii_upd = udav_ifmedia_upd, 208 .ue_mii_sts = udav_ifmedia_status, 209 }; 210 211 static const struct usb_ether_methods udav_ue_methods_nophy = { 212 .ue_attach_post = udav_attach_post, 213 .ue_start = udav_start, 214 .ue_init = udav_init, 215 .ue_stop = udav_stop, 216 .ue_setmulti = udav_setmulti, 217 .ue_setpromisc = udav_setpromisc, 218 }; 219 220 #ifdef USB_DEBUG 221 static int udav_debug = 0; 222 223 static SYSCTL_NODE(_hw_usb, OID_AUTO, udav, CTLFLAG_RW | CTLFLAG_MPSAFE, 0, 224 "USB udav"); 225 SYSCTL_INT(_hw_usb_udav, OID_AUTO, debug, CTLFLAG_RWTUN, &udav_debug, 0, 226 "Debug level"); 227 #endif 228 229 #define UDAV_SETBIT(sc, reg, x) \ 230 udav_csr_write1(sc, reg, udav_csr_read1(sc, reg) | (x)) 231 232 #define UDAV_CLRBIT(sc, reg, x) \ 233 udav_csr_write1(sc, reg, udav_csr_read1(sc, reg) & ~(x)) 234 235 static void 236 udav_attach_post(struct usb_ether *ue) 237 { 238 struct udav_softc *sc = uether_getsc(ue); 239 240 /* reset the adapter */ 241 udav_reset(sc); 242 243 /* Get Ethernet Address */ 244 udav_csr_read(sc, UDAV_PAR, ue->ue_eaddr, ETHER_ADDR_LEN); 245 } 246 247 static int 248 udav_probe(device_t dev) 249 { 250 struct usb_attach_arg *uaa = device_get_ivars(dev); 251 252 if (uaa->usb_mode != USB_MODE_HOST) 253 return (ENXIO); 254 if (uaa->info.bConfigIndex != UDAV_CONFIG_INDEX) 255 return (ENXIO); 256 if (uaa->info.bIfaceIndex != UDAV_IFACE_INDEX) 257 return (ENXIO); 258 259 return (usbd_lookup_id_by_uaa(udav_devs, sizeof(udav_devs), uaa)); 260 } 261 262 static int 263 udav_attach(device_t dev) 264 { 265 struct usb_attach_arg *uaa = device_get_ivars(dev); 266 struct udav_softc *sc = device_get_softc(dev); 267 struct usb_ether *ue = &sc->sc_ue; 268 uint8_t iface_index; 269 int error; 270 271 sc->sc_flags = USB_GET_DRIVER_INFO(uaa); 272 273 device_set_usb_desc(dev); 274 275 mtx_init(&sc->sc_mtx, device_get_nameunit(dev), NULL, MTX_DEF); 276 277 iface_index = UDAV_IFACE_INDEX; 278 error = usbd_transfer_setup(uaa->device, &iface_index, 279 sc->sc_xfer, udav_config, UDAV_N_TRANSFER, sc, &sc->sc_mtx); 280 if (error) { 281 device_printf(dev, "allocating USB transfers failed\n"); 282 goto detach; 283 } 284 285 /* 286 * The JP1082 has an unusable PHY and provides no link information. 287 */ 288 if (sc->sc_flags & UDAV_FLAG_NO_PHY) { 289 ue->ue_methods = &udav_ue_methods_nophy; 290 sc->sc_flags |= UDAV_FLAG_LINK; 291 } else { 292 ue->ue_methods = &udav_ue_methods; 293 } 294 295 ue->ue_sc = sc; 296 ue->ue_dev = dev; 297 ue->ue_udev = uaa->device; 298 ue->ue_mtx = &sc->sc_mtx; 299 300 error = uether_ifattach(ue); 301 if (error) { 302 device_printf(dev, "could not attach interface\n"); 303 goto detach; 304 } 305 306 return (0); /* success */ 307 308 detach: 309 udav_detach(dev); 310 return (ENXIO); /* failure */ 311 } 312 313 static int 314 udav_detach(device_t dev) 315 { 316 struct udav_softc *sc = device_get_softc(dev); 317 struct usb_ether *ue = &sc->sc_ue; 318 319 usbd_transfer_unsetup(sc->sc_xfer, UDAV_N_TRANSFER); 320 uether_ifdetach(ue); 321 mtx_destroy(&sc->sc_mtx); 322 323 return (0); 324 } 325 326 #if 0 327 static int 328 udav_mem_read(struct udav_softc *sc, uint16_t offset, void *buf, 329 int len) 330 { 331 struct usb_device_request req; 332 333 len &= 0xff; 334 335 req.bmRequestType = UT_READ_VENDOR_DEVICE; 336 req.bRequest = UDAV_REQ_MEM_READ; 337 USETW(req.wValue, 0x0000); 338 USETW(req.wIndex, offset); 339 USETW(req.wLength, len); 340 341 return (uether_do_request(&sc->sc_ue, &req, buf, 1000)); 342 } 343 344 static int 345 udav_mem_write(struct udav_softc *sc, uint16_t offset, void *buf, 346 int len) 347 { 348 struct usb_device_request req; 349 350 len &= 0xff; 351 352 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 353 req.bRequest = UDAV_REQ_MEM_WRITE; 354 USETW(req.wValue, 0x0000); 355 USETW(req.wIndex, offset); 356 USETW(req.wLength, len); 357 358 return (uether_do_request(&sc->sc_ue, &req, buf, 1000)); 359 } 360 361 static int 362 udav_mem_write1(struct udav_softc *sc, uint16_t offset, 363 uint8_t ch) 364 { 365 struct usb_device_request req; 366 367 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 368 req.bRequest = UDAV_REQ_MEM_WRITE1; 369 USETW(req.wValue, ch); 370 USETW(req.wIndex, offset); 371 USETW(req.wLength, 0x0000); 372 373 return (uether_do_request(&sc->sc_ue, &req, NULL, 1000)); 374 } 375 #endif 376 377 static int 378 udav_csr_read(struct udav_softc *sc, uint16_t offset, void *buf, int len) 379 { 380 struct usb_device_request req; 381 382 len &= 0xff; 383 384 req.bmRequestType = UT_READ_VENDOR_DEVICE; 385 req.bRequest = UDAV_REQ_REG_READ; 386 USETW(req.wValue, 0x0000); 387 USETW(req.wIndex, offset); 388 USETW(req.wLength, len); 389 390 return (uether_do_request(&sc->sc_ue, &req, buf, 1000)); 391 } 392 393 static int 394 udav_csr_write(struct udav_softc *sc, uint16_t offset, void *buf, int len) 395 { 396 struct usb_device_request req; 397 398 offset &= 0xff; 399 len &= 0xff; 400 401 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 402 req.bRequest = UDAV_REQ_REG_WRITE; 403 USETW(req.wValue, 0x0000); 404 USETW(req.wIndex, offset); 405 USETW(req.wLength, len); 406 407 return (uether_do_request(&sc->sc_ue, &req, buf, 1000)); 408 } 409 410 static uint8_t 411 udav_csr_read1(struct udav_softc *sc, uint16_t offset) 412 { 413 uint8_t val; 414 415 udav_csr_read(sc, offset, &val, 1); 416 return (val); 417 } 418 419 static int 420 udav_csr_write1(struct udav_softc *sc, uint16_t offset, 421 uint8_t ch) 422 { 423 struct usb_device_request req; 424 425 offset &= 0xff; 426 427 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 428 req.bRequest = UDAV_REQ_REG_WRITE1; 429 USETW(req.wValue, ch); 430 USETW(req.wIndex, offset); 431 USETW(req.wLength, 0x0000); 432 433 return (uether_do_request(&sc->sc_ue, &req, NULL, 1000)); 434 } 435 436 static void 437 udav_init(struct usb_ether *ue) 438 { 439 struct udav_softc *sc = ue->ue_sc; 440 struct ifnet *ifp = uether_getifp(&sc->sc_ue); 441 442 UDAV_LOCK_ASSERT(sc, MA_OWNED); 443 444 /* 445 * Cancel pending I/O 446 */ 447 udav_stop(ue); 448 449 /* set MAC address */ 450 udav_csr_write(sc, UDAV_PAR, IF_LLADDR(ifp), ETHER_ADDR_LEN); 451 452 /* initialize network control register */ 453 454 /* disable loopback */ 455 UDAV_CLRBIT(sc, UDAV_NCR, UDAV_NCR_LBK0 | UDAV_NCR_LBK1); 456 457 /* Initialize RX control register */ 458 UDAV_SETBIT(sc, UDAV_RCR, UDAV_RCR_DIS_LONG | UDAV_RCR_DIS_CRC); 459 460 /* load multicast filter and update promiscious mode bit */ 461 udav_setpromisc(ue); 462 463 /* enable RX */ 464 UDAV_SETBIT(sc, UDAV_RCR, UDAV_RCR_RXEN); 465 466 /* clear POWER_DOWN state of internal PHY */ 467 UDAV_SETBIT(sc, UDAV_GPCR, UDAV_GPCR_GEP_CNTL0); 468 UDAV_CLRBIT(sc, UDAV_GPR, UDAV_GPR_GEPIO0); 469 470 usbd_xfer_set_stall(sc->sc_xfer[UDAV_BULK_DT_WR]); 471 472 ifp->if_drv_flags |= IFF_DRV_RUNNING; 473 udav_start(ue); 474 } 475 476 static void 477 udav_reset(struct udav_softc *sc) 478 { 479 int i; 480 481 /* Select PHY */ 482 #if 1 483 /* 484 * XXX: force select internal phy. 485 * external phy routines are not tested. 486 */ 487 UDAV_CLRBIT(sc, UDAV_NCR, UDAV_NCR_EXT_PHY); 488 #else 489 if (sc->sc_flags & UDAV_EXT_PHY) 490 UDAV_SETBIT(sc, UDAV_NCR, UDAV_NCR_EXT_PHY); 491 else 492 UDAV_CLRBIT(sc, UDAV_NCR, UDAV_NCR_EXT_PHY); 493 #endif 494 495 UDAV_SETBIT(sc, UDAV_NCR, UDAV_NCR_RST); 496 497 for (i = 0; i < UDAV_TX_TIMEOUT; i++) { 498 if (!(udav_csr_read1(sc, UDAV_NCR) & UDAV_NCR_RST)) 499 break; 500 if (uether_pause(&sc->sc_ue, hz / 100)) 501 break; 502 } 503 504 uether_pause(&sc->sc_ue, hz / 100); 505 } 506 507 static u_int 508 udav_hash_maddr(void *arg, struct sockaddr_dl *sdl, u_int cnt) 509 { 510 uint8_t *hashtbl = arg; 511 int h; 512 513 h = ether_crc32_be(LLADDR(sdl), ETHER_ADDR_LEN) >> 26; 514 hashtbl[h / 8] |= 1 << (h % 8); 515 516 return (1); 517 } 518 519 static void 520 udav_setmulti(struct usb_ether *ue) 521 { 522 struct udav_softc *sc = ue->ue_sc; 523 struct ifnet *ifp = uether_getifp(&sc->sc_ue); 524 uint8_t hashtbl[8] = { 0, 0, 0, 0, 0, 0, 0, 0 }; 525 526 UDAV_LOCK_ASSERT(sc, MA_OWNED); 527 528 if (ifp->if_flags & IFF_ALLMULTI || ifp->if_flags & IFF_PROMISC) { 529 UDAV_SETBIT(sc, UDAV_RCR, UDAV_RCR_ALL|UDAV_RCR_PRMSC); 530 return; 531 } 532 533 /* first, zot all the existing hash bits */ 534 memset(hashtbl, 0x00, sizeof(hashtbl)); 535 hashtbl[7] |= 0x80; /* broadcast address */ 536 udav_csr_write(sc, UDAV_MAR, hashtbl, sizeof(hashtbl)); 537 538 /* now program new ones */ 539 if_foreach_llmaddr(ifp, udav_hash_maddr, hashtbl); 540 541 /* disable all multicast */ 542 UDAV_CLRBIT(sc, UDAV_RCR, UDAV_RCR_ALL); 543 544 /* write hash value to the register */ 545 udav_csr_write(sc, UDAV_MAR, hashtbl, sizeof(hashtbl)); 546 } 547 548 static void 549 udav_setpromisc(struct usb_ether *ue) 550 { 551 struct udav_softc *sc = ue->ue_sc; 552 struct ifnet *ifp = uether_getifp(&sc->sc_ue); 553 uint8_t rxmode; 554 555 rxmode = udav_csr_read1(sc, UDAV_RCR); 556 rxmode &= ~(UDAV_RCR_ALL | UDAV_RCR_PRMSC); 557 558 if (ifp->if_flags & IFF_PROMISC) 559 rxmode |= UDAV_RCR_ALL | UDAV_RCR_PRMSC; 560 else if (ifp->if_flags & IFF_ALLMULTI) 561 rxmode |= UDAV_RCR_ALL; 562 563 /* write new mode bits */ 564 udav_csr_write1(sc, UDAV_RCR, rxmode); 565 } 566 567 static void 568 udav_start(struct usb_ether *ue) 569 { 570 struct udav_softc *sc = ue->ue_sc; 571 572 /* 573 * start the USB transfers, if not already started: 574 */ 575 usbd_transfer_start(sc->sc_xfer[UDAV_INTR_DT_RD]); 576 usbd_transfer_start(sc->sc_xfer[UDAV_BULK_DT_RD]); 577 usbd_transfer_start(sc->sc_xfer[UDAV_BULK_DT_WR]); 578 } 579 580 static void 581 udav_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error) 582 { 583 struct udav_softc *sc = usbd_xfer_softc(xfer); 584 struct ifnet *ifp = uether_getifp(&sc->sc_ue); 585 struct usb_page_cache *pc; 586 struct mbuf *m; 587 int extra_len; 588 int temp_len; 589 uint8_t buf[2]; 590 591 switch (USB_GET_STATE(xfer)) { 592 case USB_ST_TRANSFERRED: 593 DPRINTFN(11, "transfer complete\n"); 594 if_inc_counter(ifp, IFCOUNTER_OPACKETS, 1); 595 596 /* FALLTHROUGH */ 597 case USB_ST_SETUP: 598 tr_setup: 599 if ((sc->sc_flags & UDAV_FLAG_LINK) == 0) { 600 /* 601 * don't send anything if there is no link ! 602 */ 603 return; 604 } 605 IFQ_DRV_DEQUEUE(&ifp->if_snd, m); 606 607 if (m == NULL) 608 return; 609 if (m->m_pkthdr.len > MCLBYTES) 610 m->m_pkthdr.len = MCLBYTES; 611 if (m->m_pkthdr.len < UDAV_MIN_FRAME_LEN) { 612 extra_len = UDAV_MIN_FRAME_LEN - m->m_pkthdr.len; 613 } else { 614 extra_len = 0; 615 } 616 617 temp_len = (m->m_pkthdr.len + extra_len); 618 619 /* 620 * the frame length is specified in the first 2 bytes of the 621 * buffer 622 */ 623 buf[0] = (uint8_t)(temp_len); 624 buf[1] = (uint8_t)(temp_len >> 8); 625 626 temp_len += 2; 627 628 pc = usbd_xfer_get_frame(xfer, 0); 629 usbd_copy_in(pc, 0, buf, 2); 630 usbd_m_copy_in(pc, 2, m, 0, m->m_pkthdr.len); 631 632 if (extra_len) 633 usbd_frame_zero(pc, temp_len - extra_len, extra_len); 634 /* 635 * if there's a BPF listener, bounce a copy 636 * of this frame to him: 637 */ 638 BPF_MTAP(ifp, m); 639 640 m_freem(m); 641 642 usbd_xfer_set_frame_len(xfer, 0, temp_len); 643 usbd_transfer_submit(xfer); 644 return; 645 646 default: /* Error */ 647 DPRINTFN(11, "transfer error, %s\n", 648 usbd_errstr(error)); 649 650 if_inc_counter(ifp, IFCOUNTER_OERRORS, 1); 651 652 if (error != USB_ERR_CANCELLED) { 653 /* try to clear stall first */ 654 usbd_xfer_set_stall(xfer); 655 goto tr_setup; 656 } 657 return; 658 } 659 } 660 661 static void 662 udav_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error) 663 { 664 struct udav_softc *sc = usbd_xfer_softc(xfer); 665 struct usb_ether *ue = &sc->sc_ue; 666 struct ifnet *ifp = uether_getifp(ue); 667 struct usb_page_cache *pc; 668 struct udav_rxpkt stat; 669 int len; 670 int actlen; 671 672 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL); 673 674 switch (USB_GET_STATE(xfer)) { 675 case USB_ST_TRANSFERRED: 676 677 if (actlen < (int)(sizeof(stat) + ETHER_CRC_LEN)) { 678 if_inc_counter(ifp, IFCOUNTER_IERRORS, 1); 679 goto tr_setup; 680 } 681 pc = usbd_xfer_get_frame(xfer, 0); 682 usbd_copy_out(pc, 0, &stat, sizeof(stat)); 683 actlen -= sizeof(stat); 684 len = min(actlen, le16toh(stat.pktlen)); 685 len -= ETHER_CRC_LEN; 686 687 if (stat.rxstat & UDAV_RSR_LCS) { 688 if_inc_counter(ifp, IFCOUNTER_COLLISIONS, 1); 689 goto tr_setup; 690 } 691 if (stat.rxstat & UDAV_RSR_ERR) { 692 if_inc_counter(ifp, IFCOUNTER_IERRORS, 1); 693 goto tr_setup; 694 } 695 uether_rxbuf(ue, pc, sizeof(stat), len); 696 /* FALLTHROUGH */ 697 case USB_ST_SETUP: 698 tr_setup: 699 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 700 usbd_transfer_submit(xfer); 701 uether_rxflush(ue); 702 return; 703 704 default: /* Error */ 705 DPRINTF("bulk read error, %s\n", 706 usbd_errstr(error)); 707 708 if (error != USB_ERR_CANCELLED) { 709 /* try to clear stall first */ 710 usbd_xfer_set_stall(xfer); 711 goto tr_setup; 712 } 713 return; 714 } 715 } 716 717 static void 718 udav_intr_callback(struct usb_xfer *xfer, usb_error_t error) 719 { 720 switch (USB_GET_STATE(xfer)) { 721 case USB_ST_TRANSFERRED: 722 case USB_ST_SETUP: 723 tr_setup: 724 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 725 usbd_transfer_submit(xfer); 726 return; 727 728 default: /* Error */ 729 if (error != USB_ERR_CANCELLED) { 730 /* try to clear stall first */ 731 usbd_xfer_set_stall(xfer); 732 goto tr_setup; 733 } 734 return; 735 } 736 } 737 738 static void 739 udav_stop(struct usb_ether *ue) 740 { 741 struct udav_softc *sc = ue->ue_sc; 742 struct ifnet *ifp = uether_getifp(&sc->sc_ue); 743 744 UDAV_LOCK_ASSERT(sc, MA_OWNED); 745 746 ifp->if_drv_flags &= ~IFF_DRV_RUNNING; 747 if (!(sc->sc_flags & UDAV_FLAG_NO_PHY)) 748 sc->sc_flags &= ~UDAV_FLAG_LINK; 749 750 /* 751 * stop all the transfers, if not already stopped: 752 */ 753 usbd_transfer_stop(sc->sc_xfer[UDAV_BULK_DT_WR]); 754 usbd_transfer_stop(sc->sc_xfer[UDAV_BULK_DT_RD]); 755 usbd_transfer_stop(sc->sc_xfer[UDAV_INTR_DT_RD]); 756 757 udav_reset(sc); 758 } 759 760 static int 761 udav_ifmedia_upd(struct ifnet *ifp) 762 { 763 struct udav_softc *sc = ifp->if_softc; 764 struct mii_data *mii = GET_MII(sc); 765 struct mii_softc *miisc; 766 int error; 767 768 UDAV_LOCK_ASSERT(sc, MA_OWNED); 769 770 sc->sc_flags &= ~UDAV_FLAG_LINK; 771 LIST_FOREACH(miisc, &mii->mii_phys, mii_list) 772 PHY_RESET(miisc); 773 error = mii_mediachg(mii); 774 return (error); 775 } 776 777 static void 778 udav_ifmedia_status(struct ifnet *ifp, struct ifmediareq *ifmr) 779 { 780 struct udav_softc *sc = ifp->if_softc; 781 struct mii_data *mii = GET_MII(sc); 782 783 UDAV_LOCK(sc); 784 mii_pollstat(mii); 785 ifmr->ifm_active = mii->mii_media_active; 786 ifmr->ifm_status = mii->mii_media_status; 787 UDAV_UNLOCK(sc); 788 } 789 790 static void 791 udav_tick(struct usb_ether *ue) 792 { 793 struct udav_softc *sc = ue->ue_sc; 794 struct mii_data *mii = GET_MII(sc); 795 796 UDAV_LOCK_ASSERT(sc, MA_OWNED); 797 798 mii_tick(mii); 799 if ((sc->sc_flags & UDAV_FLAG_LINK) == 0 800 && mii->mii_media_status & IFM_ACTIVE && 801 IFM_SUBTYPE(mii->mii_media_active) != IFM_NONE) { 802 sc->sc_flags |= UDAV_FLAG_LINK; 803 udav_start(ue); 804 } 805 } 806 807 static int 808 udav_miibus_readreg(device_t dev, int phy, int reg) 809 { 810 struct udav_softc *sc = device_get_softc(dev); 811 uint16_t data16; 812 uint8_t val[2]; 813 int locked; 814 815 /* XXX: one PHY only for the internal PHY */ 816 if (phy != 0) 817 return (0); 818 819 locked = mtx_owned(&sc->sc_mtx); 820 if (!locked) 821 UDAV_LOCK(sc); 822 823 /* select internal PHY and set PHY register address */ 824 udav_csr_write1(sc, UDAV_EPAR, 825 UDAV_EPAR_PHY_ADR0 | (reg & UDAV_EPAR_EROA_MASK)); 826 827 /* select PHY operation and start read command */ 828 udav_csr_write1(sc, UDAV_EPCR, UDAV_EPCR_EPOS | UDAV_EPCR_ERPRR); 829 830 /* XXX: should we wait? */ 831 832 /* end read command */ 833 UDAV_CLRBIT(sc, UDAV_EPCR, UDAV_EPCR_ERPRR); 834 835 /* retrieve the result from data registers */ 836 udav_csr_read(sc, UDAV_EPDRL, val, 2); 837 838 data16 = (val[0] | (val[1] << 8)); 839 840 DPRINTFN(11, "phy=%d reg=0x%04x => 0x%04x\n", 841 phy, reg, data16); 842 843 if (!locked) 844 UDAV_UNLOCK(sc); 845 return (data16); 846 } 847 848 static int 849 udav_miibus_writereg(device_t dev, int phy, int reg, int data) 850 { 851 struct udav_softc *sc = device_get_softc(dev); 852 uint8_t val[2]; 853 int locked; 854 855 /* XXX: one PHY only for the internal PHY */ 856 if (phy != 0) 857 return (0); 858 859 locked = mtx_owned(&sc->sc_mtx); 860 if (!locked) 861 UDAV_LOCK(sc); 862 863 /* select internal PHY and set PHY register address */ 864 udav_csr_write1(sc, UDAV_EPAR, 865 UDAV_EPAR_PHY_ADR0 | (reg & UDAV_EPAR_EROA_MASK)); 866 867 /* put the value to the data registers */ 868 val[0] = (data & 0xff); 869 val[1] = (data >> 8) & 0xff; 870 udav_csr_write(sc, UDAV_EPDRL, val, 2); 871 872 /* select PHY operation and start write command */ 873 udav_csr_write1(sc, UDAV_EPCR, UDAV_EPCR_EPOS | UDAV_EPCR_ERPRW); 874 875 /* XXX: should we wait? */ 876 877 /* end write command */ 878 UDAV_CLRBIT(sc, UDAV_EPCR, UDAV_EPCR_ERPRW); 879 880 if (!locked) 881 UDAV_UNLOCK(sc); 882 return (0); 883 } 884 885 static void 886 udav_miibus_statchg(device_t dev) 887 { 888 /* nothing to do */ 889 } 890