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 /*- 4 * SPDX-License-Identifier: BSD-3-Clause 5 * 6 * Copyright (c) 2003 7 * Shingo WATANABE <nabe@nabechan.org>. All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. Neither the name of the author nor the names of any co-contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 */ 34 35 /* 36 * DM9601(DAVICOM USB to Ethernet MAC Controller with Integrated 10/100 PHY) 37 * The spec can be found at the following url. 38 * http://ptm2.cc.utu.fi/ftp/network/cards/DM9601/From_NET/DM9601-DS-P01-930914.pdf 39 */ 40 41 /* 42 * TODO: 43 * Interrupt Endpoint support 44 * External PHYs 45 */ 46 47 #include <sys/cdefs.h> 48 #include <sys/stdint.h> 49 #include <sys/stddef.h> 50 #include <sys/param.h> 51 #include <sys/queue.h> 52 #include <sys/types.h> 53 #include <sys/systm.h> 54 #include <sys/socket.h> 55 #include <sys/kernel.h> 56 #include <sys/bus.h> 57 #include <sys/module.h> 58 #include <sys/lock.h> 59 #include <sys/mutex.h> 60 #include <sys/condvar.h> 61 #include <sys/sysctl.h> 62 #include <sys/sx.h> 63 #include <sys/unistd.h> 64 #include <sys/callout.h> 65 #include <sys/malloc.h> 66 #include <sys/priv.h> 67 68 #include <net/if.h> 69 #include <net/if_var.h> 70 #include <net/if_media.h> 71 72 #include <dev/mii/mii.h> 73 #include <dev/mii/miivar.h> 74 75 #include <dev/usb/usb.h> 76 #include <dev/usb/usbdi.h> 77 #include <dev/usb/usbdi_util.h> 78 #include "usbdevs.h" 79 80 #include "miibus_if.h" 81 82 #define USB_DEBUG_VAR udav_debug 83 #include <dev/usb/usb_debug.h> 84 #include <dev/usb/usb_process.h> 85 86 #include <dev/usb/net/usb_ethernet.h> 87 #include <dev/usb/net/if_udavreg.h> 88 89 /* prototypes */ 90 91 static device_probe_t udav_probe; 92 static device_attach_t udav_attach; 93 static device_detach_t udav_detach; 94 95 static usb_callback_t udav_bulk_write_callback; 96 static usb_callback_t udav_bulk_read_callback; 97 static usb_callback_t udav_intr_callback; 98 99 static uether_fn_t udav_attach_post; 100 static uether_fn_t udav_init; 101 static uether_fn_t udav_stop; 102 static uether_fn_t udav_start; 103 static uether_fn_t udav_tick; 104 static uether_fn_t udav_setmulti; 105 static uether_fn_t udav_setpromisc; 106 107 static int udav_csr_read(struct udav_softc *, uint16_t, void *, int); 108 static int udav_csr_write(struct udav_softc *, uint16_t, void *, int); 109 static uint8_t udav_csr_read1(struct udav_softc *, uint16_t); 110 static int udav_csr_write1(struct udav_softc *, uint16_t, uint8_t); 111 static void udav_reset(struct udav_softc *); 112 static int udav_ifmedia_upd(if_t); 113 static void udav_ifmedia_status(if_t, struct ifmediareq *); 114 115 static miibus_readreg_t udav_miibus_readreg; 116 static miibus_writereg_t udav_miibus_writereg; 117 static miibus_statchg_t udav_miibus_statchg; 118 119 static const struct usb_config udav_config[UDAV_N_TRANSFER] = { 120 [UDAV_BULK_DT_WR] = { 121 .type = UE_BULK, 122 .endpoint = UE_ADDR_ANY, 123 .direction = UE_DIR_OUT, 124 .bufsize = (MCLBYTES + 2), 125 .flags = {.pipe_bof = 1,.force_short_xfer = 1,}, 126 .callback = udav_bulk_write_callback, 127 .timeout = 10000, /* 10 seconds */ 128 }, 129 130 [UDAV_BULK_DT_RD] = { 131 .type = UE_BULK, 132 .endpoint = UE_ADDR_ANY, 133 .direction = UE_DIR_IN, 134 .bufsize = (MCLBYTES + 3), 135 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 136 .callback = udav_bulk_read_callback, 137 .timeout = 0, /* no timeout */ 138 }, 139 140 [UDAV_INTR_DT_RD] = { 141 .type = UE_INTERRUPT, 142 .endpoint = UE_ADDR_ANY, 143 .direction = UE_DIR_IN, 144 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 145 .bufsize = 0, /* use wMaxPacketSize */ 146 .callback = udav_intr_callback, 147 }, 148 }; 149 150 static device_method_t udav_methods[] = { 151 /* Device interface */ 152 DEVMETHOD(device_probe, udav_probe), 153 DEVMETHOD(device_attach, udav_attach), 154 DEVMETHOD(device_detach, udav_detach), 155 156 /* MII interface */ 157 DEVMETHOD(miibus_readreg, udav_miibus_readreg), 158 DEVMETHOD(miibus_writereg, udav_miibus_writereg), 159 DEVMETHOD(miibus_statchg, udav_miibus_statchg), 160 161 DEVMETHOD_END 162 }; 163 164 static driver_t udav_driver = { 165 .name = "udav", 166 .methods = udav_methods, 167 .size = sizeof(struct udav_softc), 168 }; 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, NULL, NULL); 186 DRIVER_MODULE(miibus, udav, miibus_driver, 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 | CTLFLAG_MPSAFE, 0, 219 "USB udav"); 220 SYSCTL_INT(_hw_usb_udav, OID_AUTO, debug, CTLFLAG_RWTUN, &udav_debug, 0, 221 "Debug level"); 222 #endif 223 224 #define UDAV_SETBIT(sc, reg, x) \ 225 udav_csr_write1(sc, reg, udav_csr_read1(sc, reg) | (x)) 226 227 #define UDAV_CLRBIT(sc, reg, x) \ 228 udav_csr_write1(sc, reg, udav_csr_read1(sc, reg) & ~(x)) 229 230 static void 231 udav_attach_post(struct usb_ether *ue) 232 { 233 struct udav_softc *sc = uether_getsc(ue); 234 235 /* reset the adapter */ 236 udav_reset(sc); 237 238 /* Get Ethernet Address */ 239 udav_csr_read(sc, UDAV_PAR, ue->ue_eaddr, ETHER_ADDR_LEN); 240 } 241 242 static int 243 udav_probe(device_t dev) 244 { 245 struct usb_attach_arg *uaa = device_get_ivars(dev); 246 247 if (uaa->usb_mode != USB_MODE_HOST) 248 return (ENXIO); 249 if (uaa->info.bConfigIndex != UDAV_CONFIG_INDEX) 250 return (ENXIO); 251 if (uaa->info.bIfaceIndex != UDAV_IFACE_INDEX) 252 return (ENXIO); 253 254 return (usbd_lookup_id_by_uaa(udav_devs, sizeof(udav_devs), uaa)); 255 } 256 257 static int 258 udav_attach(device_t dev) 259 { 260 struct usb_attach_arg *uaa = device_get_ivars(dev); 261 struct udav_softc *sc = device_get_softc(dev); 262 struct usb_ether *ue = &sc->sc_ue; 263 uint8_t iface_index; 264 int error; 265 266 sc->sc_flags = USB_GET_DRIVER_INFO(uaa); 267 268 device_set_usb_desc(dev); 269 270 mtx_init(&sc->sc_mtx, device_get_nameunit(dev), NULL, MTX_DEF); 271 272 iface_index = UDAV_IFACE_INDEX; 273 error = usbd_transfer_setup(uaa->device, &iface_index, 274 sc->sc_xfer, udav_config, UDAV_N_TRANSFER, sc, &sc->sc_mtx); 275 if (error) { 276 device_printf(dev, "allocating USB transfers failed\n"); 277 goto detach; 278 } 279 280 /* 281 * The JP1082 has an unusable PHY and provides no link information. 282 */ 283 if (sc->sc_flags & UDAV_FLAG_NO_PHY) { 284 ue->ue_methods = &udav_ue_methods_nophy; 285 sc->sc_flags |= UDAV_FLAG_LINK; 286 } else { 287 ue->ue_methods = &udav_ue_methods; 288 } 289 290 ue->ue_sc = sc; 291 ue->ue_dev = dev; 292 ue->ue_udev = uaa->device; 293 ue->ue_mtx = &sc->sc_mtx; 294 295 error = uether_ifattach(ue); 296 if (error) { 297 device_printf(dev, "could not attach interface\n"); 298 goto detach; 299 } 300 301 return (0); /* success */ 302 303 detach: 304 udav_detach(dev); 305 return (ENXIO); /* failure */ 306 } 307 308 static int 309 udav_detach(device_t dev) 310 { 311 struct udav_softc *sc = device_get_softc(dev); 312 struct usb_ether *ue = &sc->sc_ue; 313 314 usbd_transfer_unsetup(sc->sc_xfer, UDAV_N_TRANSFER); 315 uether_ifdetach(ue); 316 mtx_destroy(&sc->sc_mtx); 317 318 return (0); 319 } 320 321 #if 0 322 static int 323 udav_mem_read(struct udav_softc *sc, uint16_t offset, void *buf, 324 int len) 325 { 326 struct usb_device_request req; 327 328 len &= 0xff; 329 330 req.bmRequestType = UT_READ_VENDOR_DEVICE; 331 req.bRequest = UDAV_REQ_MEM_READ; 332 USETW(req.wValue, 0x0000); 333 USETW(req.wIndex, offset); 334 USETW(req.wLength, len); 335 336 return (uether_do_request(&sc->sc_ue, &req, buf, 1000)); 337 } 338 339 static int 340 udav_mem_write(struct udav_softc *sc, uint16_t offset, void *buf, 341 int len) 342 { 343 struct usb_device_request req; 344 345 len &= 0xff; 346 347 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 348 req.bRequest = UDAV_REQ_MEM_WRITE; 349 USETW(req.wValue, 0x0000); 350 USETW(req.wIndex, offset); 351 USETW(req.wLength, len); 352 353 return (uether_do_request(&sc->sc_ue, &req, buf, 1000)); 354 } 355 356 static int 357 udav_mem_write1(struct udav_softc *sc, uint16_t offset, 358 uint8_t ch) 359 { 360 struct usb_device_request req; 361 362 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 363 req.bRequest = UDAV_REQ_MEM_WRITE1; 364 USETW(req.wValue, ch); 365 USETW(req.wIndex, offset); 366 USETW(req.wLength, 0x0000); 367 368 return (uether_do_request(&sc->sc_ue, &req, NULL, 1000)); 369 } 370 #endif 371 372 static int 373 udav_csr_read(struct udav_softc *sc, uint16_t offset, void *buf, int len) 374 { 375 struct usb_device_request req; 376 377 len &= 0xff; 378 379 req.bmRequestType = UT_READ_VENDOR_DEVICE; 380 req.bRequest = UDAV_REQ_REG_READ; 381 USETW(req.wValue, 0x0000); 382 USETW(req.wIndex, offset); 383 USETW(req.wLength, len); 384 385 return (uether_do_request(&sc->sc_ue, &req, buf, 1000)); 386 } 387 388 static int 389 udav_csr_write(struct udav_softc *sc, uint16_t offset, void *buf, int len) 390 { 391 struct usb_device_request req; 392 393 offset &= 0xff; 394 len &= 0xff; 395 396 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 397 req.bRequest = UDAV_REQ_REG_WRITE; 398 USETW(req.wValue, 0x0000); 399 USETW(req.wIndex, offset); 400 USETW(req.wLength, len); 401 402 return (uether_do_request(&sc->sc_ue, &req, buf, 1000)); 403 } 404 405 static uint8_t 406 udav_csr_read1(struct udav_softc *sc, uint16_t offset) 407 { 408 uint8_t val; 409 410 udav_csr_read(sc, offset, &val, 1); 411 return (val); 412 } 413 414 static int 415 udav_csr_write1(struct udav_softc *sc, uint16_t offset, 416 uint8_t ch) 417 { 418 struct usb_device_request req; 419 420 offset &= 0xff; 421 422 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 423 req.bRequest = UDAV_REQ_REG_WRITE1; 424 USETW(req.wValue, ch); 425 USETW(req.wIndex, offset); 426 USETW(req.wLength, 0x0000); 427 428 return (uether_do_request(&sc->sc_ue, &req, NULL, 1000)); 429 } 430 431 static void 432 udav_init(struct usb_ether *ue) 433 { 434 struct udav_softc *sc = ue->ue_sc; 435 if_t ifp = uether_getifp(&sc->sc_ue); 436 437 UDAV_LOCK_ASSERT(sc, MA_OWNED); 438 439 /* 440 * Cancel pending I/O 441 */ 442 udav_stop(ue); 443 444 /* set MAC address */ 445 udav_csr_write(sc, UDAV_PAR, if_getlladdr(ifp), ETHER_ADDR_LEN); 446 447 /* initialize network control register */ 448 449 /* disable loopback */ 450 UDAV_CLRBIT(sc, UDAV_NCR, UDAV_NCR_LBK0 | UDAV_NCR_LBK1); 451 452 /* Initialize RX control register */ 453 UDAV_SETBIT(sc, UDAV_RCR, UDAV_RCR_DIS_LONG | UDAV_RCR_DIS_CRC); 454 455 /* load multicast filter and update promiscious mode bit */ 456 udav_setpromisc(ue); 457 458 /* enable RX */ 459 UDAV_SETBIT(sc, UDAV_RCR, UDAV_RCR_RXEN); 460 461 /* clear POWER_DOWN state of internal PHY */ 462 UDAV_SETBIT(sc, UDAV_GPCR, UDAV_GPCR_GEP_CNTL0); 463 UDAV_CLRBIT(sc, UDAV_GPR, UDAV_GPR_GEPIO0); 464 465 usbd_xfer_set_stall(sc->sc_xfer[UDAV_BULK_DT_WR]); 466 467 if_setdrvflagbits(ifp, IFF_DRV_RUNNING, 0); 468 udav_start(ue); 469 } 470 471 static void 472 udav_reset(struct udav_softc *sc) 473 { 474 int i; 475 476 /* Select PHY */ 477 #if 1 478 /* 479 * XXX: force select internal phy. 480 * external phy routines are not tested. 481 */ 482 UDAV_CLRBIT(sc, UDAV_NCR, UDAV_NCR_EXT_PHY); 483 #else 484 if (sc->sc_flags & UDAV_EXT_PHY) 485 UDAV_SETBIT(sc, UDAV_NCR, UDAV_NCR_EXT_PHY); 486 else 487 UDAV_CLRBIT(sc, UDAV_NCR, UDAV_NCR_EXT_PHY); 488 #endif 489 490 UDAV_SETBIT(sc, UDAV_NCR, UDAV_NCR_RST); 491 492 for (i = 0; i < UDAV_TX_TIMEOUT; i++) { 493 if (!(udav_csr_read1(sc, UDAV_NCR) & UDAV_NCR_RST)) 494 break; 495 if (uether_pause(&sc->sc_ue, hz / 100)) 496 break; 497 } 498 499 uether_pause(&sc->sc_ue, hz / 100); 500 } 501 502 static u_int 503 udav_hash_maddr(void *arg, struct sockaddr_dl *sdl, u_int cnt) 504 { 505 uint8_t *hashtbl = arg; 506 int h; 507 508 h = ether_crc32_be(LLADDR(sdl), ETHER_ADDR_LEN) >> 26; 509 hashtbl[h / 8] |= 1 << (h % 8); 510 511 return (1); 512 } 513 514 static void 515 udav_setmulti(struct usb_ether *ue) 516 { 517 struct udav_softc *sc = ue->ue_sc; 518 if_t ifp = uether_getifp(&sc->sc_ue); 519 uint8_t hashtbl[8] = { 0, 0, 0, 0, 0, 0, 0, 0 }; 520 521 UDAV_LOCK_ASSERT(sc, MA_OWNED); 522 523 if (if_getflags(ifp) & IFF_ALLMULTI || if_getflags(ifp) & IFF_PROMISC) { 524 UDAV_SETBIT(sc, UDAV_RCR, UDAV_RCR_ALL|UDAV_RCR_PRMSC); 525 return; 526 } 527 528 /* first, zot all the existing hash bits */ 529 memset(hashtbl, 0x00, sizeof(hashtbl)); 530 hashtbl[7] |= 0x80; /* broadcast address */ 531 udav_csr_write(sc, UDAV_MAR, hashtbl, sizeof(hashtbl)); 532 533 /* now program new ones */ 534 if_foreach_llmaddr(ifp, udav_hash_maddr, hashtbl); 535 536 /* disable all multicast */ 537 UDAV_CLRBIT(sc, UDAV_RCR, UDAV_RCR_ALL); 538 539 /* write hash value to the register */ 540 udav_csr_write(sc, UDAV_MAR, hashtbl, sizeof(hashtbl)); 541 } 542 543 static void 544 udav_setpromisc(struct usb_ether *ue) 545 { 546 struct udav_softc *sc = ue->ue_sc; 547 if_t ifp = uether_getifp(&sc->sc_ue); 548 uint8_t rxmode; 549 550 rxmode = udav_csr_read1(sc, UDAV_RCR); 551 rxmode &= ~(UDAV_RCR_ALL | UDAV_RCR_PRMSC); 552 553 if (if_getflags(ifp) & IFF_PROMISC) 554 rxmode |= UDAV_RCR_ALL | UDAV_RCR_PRMSC; 555 else if (if_getflags(ifp) & IFF_ALLMULTI) 556 rxmode |= UDAV_RCR_ALL; 557 558 /* write new mode bits */ 559 udav_csr_write1(sc, UDAV_RCR, rxmode); 560 } 561 562 static void 563 udav_start(struct usb_ether *ue) 564 { 565 struct udav_softc *sc = ue->ue_sc; 566 567 /* 568 * start the USB transfers, if not already started: 569 */ 570 usbd_transfer_start(sc->sc_xfer[UDAV_INTR_DT_RD]); 571 usbd_transfer_start(sc->sc_xfer[UDAV_BULK_DT_RD]); 572 usbd_transfer_start(sc->sc_xfer[UDAV_BULK_DT_WR]); 573 } 574 575 static void 576 udav_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error) 577 { 578 struct udav_softc *sc = usbd_xfer_softc(xfer); 579 if_t ifp = uether_getifp(&sc->sc_ue); 580 struct usb_page_cache *pc; 581 struct mbuf *m; 582 int extra_len; 583 int temp_len; 584 uint8_t buf[2]; 585 586 switch (USB_GET_STATE(xfer)) { 587 case USB_ST_TRANSFERRED: 588 DPRINTFN(11, "transfer complete\n"); 589 if_inc_counter(ifp, IFCOUNTER_OPACKETS, 1); 590 591 /* FALLTHROUGH */ 592 case USB_ST_SETUP: 593 tr_setup: 594 if ((sc->sc_flags & UDAV_FLAG_LINK) == 0) { 595 /* 596 * don't send anything if there is no link ! 597 */ 598 return; 599 } 600 m = if_dequeue(ifp); 601 602 if (m == NULL) 603 return; 604 if (m->m_pkthdr.len > MCLBYTES) 605 m->m_pkthdr.len = MCLBYTES; 606 if (m->m_pkthdr.len < UDAV_MIN_FRAME_LEN) { 607 extra_len = UDAV_MIN_FRAME_LEN - m->m_pkthdr.len; 608 } else { 609 extra_len = 0; 610 } 611 612 temp_len = (m->m_pkthdr.len + extra_len); 613 614 /* 615 * the frame length is specified in the first 2 bytes of the 616 * buffer 617 */ 618 buf[0] = (uint8_t)(temp_len); 619 buf[1] = (uint8_t)(temp_len >> 8); 620 621 temp_len += 2; 622 623 pc = usbd_xfer_get_frame(xfer, 0); 624 usbd_copy_in(pc, 0, buf, 2); 625 usbd_m_copy_in(pc, 2, m, 0, m->m_pkthdr.len); 626 627 if (extra_len) 628 usbd_frame_zero(pc, temp_len - extra_len, extra_len); 629 /* 630 * if there's a BPF listener, bounce a copy 631 * of this frame to him: 632 */ 633 BPF_MTAP(ifp, m); 634 635 m_freem(m); 636 637 usbd_xfer_set_frame_len(xfer, 0, temp_len); 638 usbd_transfer_submit(xfer); 639 return; 640 641 default: /* Error */ 642 DPRINTFN(11, "transfer error, %s\n", 643 usbd_errstr(error)); 644 645 if_inc_counter(ifp, IFCOUNTER_OERRORS, 1); 646 647 if (error != USB_ERR_CANCELLED) { 648 /* try to clear stall first */ 649 usbd_xfer_set_stall(xfer); 650 goto tr_setup; 651 } 652 return; 653 } 654 } 655 656 static void 657 udav_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error) 658 { 659 struct udav_softc *sc = usbd_xfer_softc(xfer); 660 struct usb_ether *ue = &sc->sc_ue; 661 if_t ifp = uether_getifp(ue); 662 struct usb_page_cache *pc; 663 struct udav_rxpkt stat; 664 int len; 665 int actlen; 666 667 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL); 668 669 switch (USB_GET_STATE(xfer)) { 670 case USB_ST_TRANSFERRED: 671 672 if (actlen < (int)(sizeof(stat) + ETHER_CRC_LEN)) { 673 if_inc_counter(ifp, IFCOUNTER_IERRORS, 1); 674 goto tr_setup; 675 } 676 pc = usbd_xfer_get_frame(xfer, 0); 677 usbd_copy_out(pc, 0, &stat, sizeof(stat)); 678 actlen -= sizeof(stat); 679 len = min(actlen, le16toh(stat.pktlen)); 680 len -= ETHER_CRC_LEN; 681 682 if (stat.rxstat & UDAV_RSR_LCS) { 683 if_inc_counter(ifp, IFCOUNTER_COLLISIONS, 1); 684 goto tr_setup; 685 } 686 if (stat.rxstat & UDAV_RSR_ERR) { 687 if_inc_counter(ifp, IFCOUNTER_IERRORS, 1); 688 goto tr_setup; 689 } 690 uether_rxbuf(ue, pc, sizeof(stat), len); 691 /* FALLTHROUGH */ 692 case USB_ST_SETUP: 693 tr_setup: 694 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 695 usbd_transfer_submit(xfer); 696 uether_rxflush(ue); 697 return; 698 699 default: /* Error */ 700 DPRINTF("bulk read error, %s\n", 701 usbd_errstr(error)); 702 703 if (error != USB_ERR_CANCELLED) { 704 /* try to clear stall first */ 705 usbd_xfer_set_stall(xfer); 706 goto tr_setup; 707 } 708 return; 709 } 710 } 711 712 static void 713 udav_intr_callback(struct usb_xfer *xfer, usb_error_t error) 714 { 715 switch (USB_GET_STATE(xfer)) { 716 case USB_ST_TRANSFERRED: 717 case USB_ST_SETUP: 718 tr_setup: 719 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 720 usbd_transfer_submit(xfer); 721 return; 722 723 default: /* Error */ 724 if (error != USB_ERR_CANCELLED) { 725 /* try to clear stall first */ 726 usbd_xfer_set_stall(xfer); 727 goto tr_setup; 728 } 729 return; 730 } 731 } 732 733 static void 734 udav_stop(struct usb_ether *ue) 735 { 736 struct udav_softc *sc = ue->ue_sc; 737 if_t ifp = uether_getifp(&sc->sc_ue); 738 739 UDAV_LOCK_ASSERT(sc, MA_OWNED); 740 741 if_setdrvflagbits(ifp, 0, IFF_DRV_RUNNING); 742 if (!(sc->sc_flags & UDAV_FLAG_NO_PHY)) 743 sc->sc_flags &= ~UDAV_FLAG_LINK; 744 745 /* 746 * stop all the transfers, if not already stopped: 747 */ 748 usbd_transfer_stop(sc->sc_xfer[UDAV_BULK_DT_WR]); 749 usbd_transfer_stop(sc->sc_xfer[UDAV_BULK_DT_RD]); 750 usbd_transfer_stop(sc->sc_xfer[UDAV_INTR_DT_RD]); 751 752 udav_reset(sc); 753 } 754 755 static int 756 udav_ifmedia_upd(if_t ifp) 757 { 758 struct udav_softc *sc = if_getsoftc(ifp); 759 struct mii_data *mii = GET_MII(sc); 760 struct mii_softc *miisc; 761 int error; 762 763 UDAV_LOCK_ASSERT(sc, MA_OWNED); 764 765 sc->sc_flags &= ~UDAV_FLAG_LINK; 766 LIST_FOREACH(miisc, &mii->mii_phys, mii_list) 767 PHY_RESET(miisc); 768 error = mii_mediachg(mii); 769 return (error); 770 } 771 772 static void 773 udav_ifmedia_status(if_t ifp, struct ifmediareq *ifmr) 774 { 775 struct udav_softc *sc = if_getsoftc(ifp); 776 struct mii_data *mii = GET_MII(sc); 777 778 UDAV_LOCK(sc); 779 mii_pollstat(mii); 780 ifmr->ifm_active = mii->mii_media_active; 781 ifmr->ifm_status = mii->mii_media_status; 782 UDAV_UNLOCK(sc); 783 } 784 785 static void 786 udav_tick(struct usb_ether *ue) 787 { 788 struct udav_softc *sc = ue->ue_sc; 789 struct mii_data *mii = GET_MII(sc); 790 791 UDAV_LOCK_ASSERT(sc, MA_OWNED); 792 793 mii_tick(mii); 794 if ((sc->sc_flags & UDAV_FLAG_LINK) == 0 795 && mii->mii_media_status & IFM_ACTIVE && 796 IFM_SUBTYPE(mii->mii_media_active) != IFM_NONE) { 797 sc->sc_flags |= UDAV_FLAG_LINK; 798 udav_start(ue); 799 } 800 } 801 802 static int 803 udav_miibus_readreg(device_t dev, int phy, int reg) 804 { 805 struct udav_softc *sc = device_get_softc(dev); 806 uint16_t data16; 807 uint8_t val[2]; 808 int locked; 809 810 /* XXX: one PHY only for the internal PHY */ 811 if (phy != 0) 812 return (0); 813 814 locked = mtx_owned(&sc->sc_mtx); 815 if (!locked) 816 UDAV_LOCK(sc); 817 818 /* select internal PHY and set PHY register address */ 819 udav_csr_write1(sc, UDAV_EPAR, 820 UDAV_EPAR_PHY_ADR0 | (reg & UDAV_EPAR_EROA_MASK)); 821 822 /* select PHY operation and start read command */ 823 udav_csr_write1(sc, UDAV_EPCR, UDAV_EPCR_EPOS | UDAV_EPCR_ERPRR); 824 825 /* XXX: should we wait? */ 826 827 /* end read command */ 828 UDAV_CLRBIT(sc, UDAV_EPCR, UDAV_EPCR_ERPRR); 829 830 /* retrieve the result from data registers */ 831 udav_csr_read(sc, UDAV_EPDRL, val, 2); 832 833 data16 = (val[0] | (val[1] << 8)); 834 835 DPRINTFN(11, "phy=%d reg=0x%04x => 0x%04x\n", 836 phy, reg, data16); 837 838 if (!locked) 839 UDAV_UNLOCK(sc); 840 return (data16); 841 } 842 843 static int 844 udav_miibus_writereg(device_t dev, int phy, int reg, int data) 845 { 846 struct udav_softc *sc = device_get_softc(dev); 847 uint8_t val[2]; 848 int locked; 849 850 /* XXX: one PHY only for the internal PHY */ 851 if (phy != 0) 852 return (0); 853 854 locked = mtx_owned(&sc->sc_mtx); 855 if (!locked) 856 UDAV_LOCK(sc); 857 858 /* select internal PHY and set PHY register address */ 859 udav_csr_write1(sc, UDAV_EPAR, 860 UDAV_EPAR_PHY_ADR0 | (reg & UDAV_EPAR_EROA_MASK)); 861 862 /* put the value to the data registers */ 863 val[0] = (data & 0xff); 864 val[1] = (data >> 8) & 0xff; 865 udav_csr_write(sc, UDAV_EPDRL, val, 2); 866 867 /* select PHY operation and start write command */ 868 udav_csr_write1(sc, UDAV_EPCR, UDAV_EPCR_EPOS | UDAV_EPCR_ERPRW); 869 870 /* XXX: should we wait? */ 871 872 /* end write command */ 873 UDAV_CLRBIT(sc, UDAV_EPCR, UDAV_EPCR_ERPRW); 874 875 if (!locked) 876 UDAV_UNLOCK(sc); 877 return (0); 878 } 879 880 static void 881 udav_miibus_statchg(device_t dev) 882 { 883 /* nothing to do */ 884 } 885