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