1 /* $NetBSD: if_udav.c,v 1.2 2003/09/04 15:17:38 tsutsui Exp $ */ 2 /* $nabe: if_udav.c,v 1.3 2003/08/21 16:57:19 nabe Exp $ */ 3 /* $FreeBSD$ */ 4 /*- 5 * Copyright (c) 2003 6 * Shingo WATANABE <nabe@nabechan.org>. All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. Neither the name of the author nor the names of any co-contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 * 32 */ 33 34 /* 35 * DM9601(DAVICOM USB to Ethernet MAC Controller with Integrated 10/100 PHY) 36 * The spec can be found at the following url. 37 * http://www.davicom.com.tw/big5/download/Data%20Sheet/DM9601-DS-P01-930914.pdf 38 */ 39 40 /* 41 * TODO: 42 * Interrupt Endpoint support 43 * External PHYs 44 */ 45 46 #include <sys/stdint.h> 47 #include <sys/param.h> 48 #include <sys/queue.h> 49 #include <sys/types.h> 50 #include <sys/systm.h> 51 #include <sys/kernel.h> 52 #include <sys/bus.h> 53 #include <sys/module.h> 54 #include <sys/lock.h> 55 #include <sys/mutex.h> 56 #include <sys/condvar.h> 57 #include <sys/sysctl.h> 58 #include <sys/unistd.h> 59 #include <sys/callout.h> 60 #include <sys/malloc.h> 61 #include <sys/priv.h> 62 63 #include <net/ifq_var.h> 64 65 #include <bus/u4b/usb.h> 66 #include <bus/u4b/usbdi.h> 67 #include <bus/u4b/usbdi_util.h> 68 #include "usbdevs.h" 69 70 #define USB_DEBUG_VAR udav_debug 71 #include <bus/u4b/usb_debug.h> 72 #include <bus/u4b/usb_process.h> 73 74 #include <bus/u4b/net/usb_ethernet.h> 75 #include <bus/u4b/net/if_udavreg.h> 76 77 /* prototypes */ 78 79 static device_probe_t udav_probe; 80 static device_attach_t udav_attach; 81 static device_detach_t udav_detach; 82 83 static usb_callback_t udav_bulk_write_callback; 84 static usb_callback_t udav_bulk_read_callback; 85 static usb_callback_t udav_intr_callback; 86 87 static uether_fn_t udav_attach_post; 88 static uether_fn_t udav_init; 89 static uether_fn_t udav_stop; 90 static uether_fn_t udav_start; 91 static uether_fn_t udav_tick; 92 static uether_fn_t udav_setmulti; 93 static uether_fn_t udav_setpromisc; 94 95 static int udav_csr_read(struct udav_softc *, uint16_t, void *, int); 96 static int udav_csr_write(struct udav_softc *, uint16_t, void *, int); 97 static uint8_t udav_csr_read1(struct udav_softc *, uint16_t); 98 static int udav_csr_write1(struct udav_softc *, uint16_t, uint8_t); 99 static void udav_reset(struct udav_softc *); 100 static int udav_ifmedia_upd(struct ifnet *); 101 static void udav_ifmedia_status(struct ifnet *, struct ifmediareq *); 102 103 static miibus_readreg_t udav_miibus_readreg; 104 static miibus_writereg_t udav_miibus_writereg; 105 static miibus_statchg_t udav_miibus_statchg; 106 107 static const struct usb_config udav_config[UDAV_N_TRANSFER] = { 108 109 [UDAV_BULK_DT_WR] = { 110 .type = UE_BULK, 111 .endpoint = UE_ADDR_ANY, 112 .direction = UE_DIR_OUT, 113 .bufsize = (MCLBYTES + 2), 114 .flags = {.pipe_bof = 1,.force_short_xfer = 1,}, 115 .callback = udav_bulk_write_callback, 116 .timeout = 10000, /* 10 seconds */ 117 }, 118 119 [UDAV_BULK_DT_RD] = { 120 .type = UE_BULK, 121 .endpoint = UE_ADDR_ANY, 122 .direction = UE_DIR_IN, 123 .bufsize = (MCLBYTES + 3), 124 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 125 .callback = udav_bulk_read_callback, 126 .timeout = 0, /* no timeout */ 127 }, 128 129 [UDAV_INTR_DT_RD] = { 130 .type = UE_INTERRUPT, 131 .endpoint = UE_ADDR_ANY, 132 .direction = UE_DIR_IN, 133 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 134 .bufsize = 0, /* use wMaxPacketSize */ 135 .callback = udav_intr_callback, 136 }, 137 }; 138 139 static device_method_t udav_methods[] = { 140 /* Device interface */ 141 DEVMETHOD(device_probe, udav_probe), 142 DEVMETHOD(device_attach, udav_attach), 143 DEVMETHOD(device_detach, udav_detach), 144 145 /* MII interface */ 146 DEVMETHOD(miibus_readreg, udav_miibus_readreg), 147 DEVMETHOD(miibus_writereg, udav_miibus_writereg), 148 DEVMETHOD(miibus_statchg, udav_miibus_statchg), 149 150 DEVMETHOD_END 151 }; 152 153 static driver_t udav_driver = { 154 .name = "udav", 155 .methods = udav_methods, 156 .size = sizeof(struct udav_softc), 157 }; 158 159 static devclass_t udav_devclass; 160 161 DRIVER_MODULE(udav, uhub, udav_driver, udav_devclass, NULL, NULL); 162 DRIVER_MODULE(miibus, udav, miibus_driver, miibus_devclass, NULL, NULL); 163 MODULE_DEPEND(udav, uether, 1, 1, 1); 164 MODULE_DEPEND(udav, usb, 1, 1, 1); 165 MODULE_DEPEND(udav, ether, 1, 1, 1); 166 MODULE_DEPEND(udav, miibus, 1, 1, 1); 167 MODULE_VERSION(udav, 1); 168 169 static const struct usb_ether_methods udav_ue_methods = { 170 .ue_attach_post = udav_attach_post, 171 .ue_start = udav_start, 172 .ue_init = udav_init, 173 .ue_stop = udav_stop, 174 .ue_tick = udav_tick, 175 .ue_setmulti = udav_setmulti, 176 .ue_setpromisc = udav_setpromisc, 177 .ue_mii_upd = udav_ifmedia_upd, 178 .ue_mii_sts = udav_ifmedia_status, 179 }; 180 181 static const struct usb_ether_methods udav_ue_methods_nophy = { 182 .ue_attach_post = udav_attach_post, 183 .ue_start = udav_start, 184 .ue_init = udav_init, 185 .ue_stop = udav_stop, 186 .ue_setmulti = udav_setmulti, 187 .ue_setpromisc = udav_setpromisc, 188 }; 189 190 #ifdef USB_DEBUG 191 static int udav_debug = 0; 192 193 static SYSCTL_NODE(_hw_usb, OID_AUTO, udav, CTLFLAG_RW, 0, "USB udav"); 194 SYSCTL_INT(_hw_usb_udav, OID_AUTO, debug, CTLFLAG_RW, &udav_debug, 0, 195 "Debug level"); 196 #endif 197 198 #define UDAV_SETBIT(sc, reg, x) \ 199 udav_csr_write1(sc, reg, udav_csr_read1(sc, reg) | (x)) 200 201 #define UDAV_CLRBIT(sc, reg, x) \ 202 udav_csr_write1(sc, reg, udav_csr_read1(sc, reg) & ~(x)) 203 204 static const STRUCT_USB_HOST_ID udav_devs[] = { 205 /* ShanTou DM9601 USB NIC */ 206 {USB_VPI(USB_VENDOR_SHANTOU, USB_PRODUCT_SHANTOU_DM9601, 0)}, 207 /* ShanTou ST268 USB NIC */ 208 {USB_VPI(USB_VENDOR_SHANTOU, USB_PRODUCT_SHANTOU_ST268, 0)}, 209 /* Corega USB-TXC */ 210 {USB_VPI(USB_VENDOR_COREGA, USB_PRODUCT_COREGA_FETHER_USB_TXC, 0)}, 211 /* ShanTou AMD8515 USB NIC */ 212 {USB_VPI(USB_VENDOR_SHANTOU, USB_PRODUCT_SHANTOU_ADM8515, 0)}, 213 /* Kontron AG USB Ethernet */ 214 {USB_VPI(USB_VENDOR_KONTRON, USB_PRODUCT_KONTRON_DM9601, 0)}, 215 {USB_VPI(USB_VENDOR_KONTRON, USB_PRODUCT_KONTRON_JP1082, 216 UDAV_FLAG_NO_PHY)}, 217 }; 218 219 static void 220 udav_attach_post(struct usb_ether *ue) 221 { 222 struct udav_softc *sc = uether_getsc(ue); 223 224 /* reset the adapter */ 225 udav_reset(sc); 226 227 /* Get Ethernet Address */ 228 udav_csr_read(sc, UDAV_PAR, ue->ue_eaddr, ETHER_ADDR_LEN); 229 } 230 231 static int 232 udav_probe(device_t dev) 233 { 234 struct usb_attach_arg *uaa = device_get_ivars(dev); 235 236 if (uaa->usb_mode != USB_MODE_HOST) 237 return (ENXIO); 238 if (uaa->info.bConfigIndex != UDAV_CONFIG_INDEX) 239 return (ENXIO); 240 if (uaa->info.bIfaceIndex != UDAV_IFACE_INDEX) 241 return (ENXIO); 242 243 return (usbd_lookup_id_by_uaa(udav_devs, sizeof(udav_devs), uaa)); 244 } 245 246 static int 247 udav_attach(device_t dev) 248 { 249 struct usb_attach_arg *uaa = device_get_ivars(dev); 250 struct udav_softc *sc = device_get_softc(dev); 251 struct usb_ether *ue = &sc->sc_ue; 252 uint8_t iface_index; 253 int error; 254 255 sc->sc_flags = USB_GET_DRIVER_INFO(uaa); 256 257 device_set_usb_desc(dev); 258 259 lockinit(&sc->sc_lock, device_get_nameunit(dev), 0, 0); 260 261 iface_index = UDAV_IFACE_INDEX; 262 error = usbd_transfer_setup(uaa->device, &iface_index, 263 sc->sc_xfer, udav_config, UDAV_N_TRANSFER, sc, &sc->sc_lock); 264 if (error) { 265 device_printf(dev, "allocating USB transfers failed\n"); 266 goto detach; 267 } 268 269 /* 270 * The JP1082 has an unusable PHY and provides no link information. 271 */ 272 if (sc->sc_flags & UDAV_FLAG_NO_PHY) { 273 ue->ue_methods = &udav_ue_methods_nophy; 274 sc->sc_flags |= UDAV_FLAG_LINK; 275 } else { 276 ue->ue_methods = &udav_ue_methods; 277 } 278 279 ue->ue_sc = sc; 280 ue->ue_dev = dev; 281 ue->ue_udev = uaa->device; 282 ue->ue_lock = &sc->sc_lock; 283 284 error = uether_ifattach(ue); 285 if (error) { 286 device_printf(dev, "could not attach interface\n"); 287 goto detach; 288 } 289 290 return (0); /* success */ 291 292 detach: 293 udav_detach(dev); 294 return (ENXIO); /* failure */ 295 } 296 297 static int 298 udav_detach(device_t dev) 299 { 300 struct udav_softc *sc = device_get_softc(dev); 301 struct usb_ether *ue = &sc->sc_ue; 302 303 usbd_transfer_unsetup(sc->sc_xfer, UDAV_N_TRANSFER); 304 uether_ifdetach(ue); 305 lockuninit(&sc->sc_lock); 306 307 return (0); 308 } 309 310 #if 0 311 static int 312 udav_mem_read(struct udav_softc *sc, uint16_t offset, void *buf, 313 int len) 314 { 315 struct usb_device_request req; 316 317 len &= 0xff; 318 319 req.bmRequestType = UT_READ_VENDOR_DEVICE; 320 req.bRequest = UDAV_REQ_MEM_READ; 321 USETW(req.wValue, 0x0000); 322 USETW(req.wIndex, offset); 323 USETW(req.wLength, len); 324 325 return (uether_do_request(&sc->sc_ue, &req, buf, 1000)); 326 } 327 328 static int 329 udav_mem_write(struct udav_softc *sc, uint16_t offset, void *buf, 330 int len) 331 { 332 struct usb_device_request req; 333 334 len &= 0xff; 335 336 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 337 req.bRequest = UDAV_REQ_MEM_WRITE; 338 USETW(req.wValue, 0x0000); 339 USETW(req.wIndex, offset); 340 USETW(req.wLength, len); 341 342 return (uether_do_request(&sc->sc_ue, &req, buf, 1000)); 343 } 344 345 static int 346 udav_mem_write1(struct udav_softc *sc, uint16_t offset, 347 uint8_t ch) 348 { 349 struct usb_device_request req; 350 351 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 352 req.bRequest = UDAV_REQ_MEM_WRITE1; 353 USETW(req.wValue, ch); 354 USETW(req.wIndex, offset); 355 USETW(req.wLength, 0x0000); 356 357 return (uether_do_request(&sc->sc_ue, &req, NULL, 1000)); 358 } 359 #endif 360 361 static int 362 udav_csr_read(struct udav_softc *sc, uint16_t offset, void *buf, int len) 363 { 364 struct usb_device_request req; 365 366 len &= 0xff; 367 368 req.bmRequestType = UT_READ_VENDOR_DEVICE; 369 req.bRequest = UDAV_REQ_REG_READ; 370 USETW(req.wValue, 0x0000); 371 USETW(req.wIndex, offset); 372 USETW(req.wLength, len); 373 374 return (uether_do_request(&sc->sc_ue, &req, buf, 1000)); 375 } 376 377 static int 378 udav_csr_write(struct udav_softc *sc, uint16_t offset, void *buf, int len) 379 { 380 struct usb_device_request req; 381 382 offset &= 0xff; 383 len &= 0xff; 384 385 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 386 req.bRequest = UDAV_REQ_REG_WRITE; 387 USETW(req.wValue, 0x0000); 388 USETW(req.wIndex, offset); 389 USETW(req.wLength, len); 390 391 return (uether_do_request(&sc->sc_ue, &req, buf, 1000)); 392 } 393 394 static uint8_t 395 udav_csr_read1(struct udav_softc *sc, uint16_t offset) 396 { 397 uint8_t val; 398 399 udav_csr_read(sc, offset, &val, 1); 400 return (val); 401 } 402 403 static int 404 udav_csr_write1(struct udav_softc *sc, uint16_t offset, 405 uint8_t ch) 406 { 407 struct usb_device_request req; 408 409 offset &= 0xff; 410 411 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 412 req.bRequest = UDAV_REQ_REG_WRITE1; 413 USETW(req.wValue, ch); 414 USETW(req.wIndex, offset); 415 USETW(req.wLength, 0x0000); 416 417 return (uether_do_request(&sc->sc_ue, &req, NULL, 1000)); 418 } 419 420 static void 421 udav_init(struct usb_ether *ue) 422 { 423 struct udav_softc *sc = ue->ue_sc; 424 struct ifnet *ifp = uether_getifp(&sc->sc_ue); 425 426 UDAV_LOCK_ASSERT(sc); 427 428 /* 429 * Cancel pending I/O 430 */ 431 udav_stop(ue); 432 433 /* set MAC address */ 434 udav_csr_write(sc, UDAV_PAR, IF_LLADDR(ifp), ETHER_ADDR_LEN); 435 436 /* initialize network control register */ 437 438 /* disable loopback */ 439 UDAV_CLRBIT(sc, UDAV_NCR, UDAV_NCR_LBK0 | UDAV_NCR_LBK1); 440 441 /* Initialize RX control register */ 442 UDAV_SETBIT(sc, UDAV_RCR, UDAV_RCR_DIS_LONG | UDAV_RCR_DIS_CRC); 443 444 /* load multicast filter and update promiscious mode bit */ 445 udav_setpromisc(ue); 446 447 /* enable RX */ 448 UDAV_SETBIT(sc, UDAV_RCR, UDAV_RCR_RXEN); 449 450 /* clear POWER_DOWN state of internal PHY */ 451 UDAV_SETBIT(sc, UDAV_GPCR, UDAV_GPCR_GEP_CNTL0); 452 UDAV_CLRBIT(sc, UDAV_GPR, UDAV_GPR_GEPIO0); 453 454 usbd_xfer_set_stall(sc->sc_xfer[UDAV_BULK_DT_WR]); 455 456 /* XXX ifp->if_drv_flags |= IFF_DRV_RUNNING; 457 */ 458 udav_start(ue); 459 } 460 461 static void 462 udav_reset(struct udav_softc *sc) 463 { 464 int i; 465 466 /* Select PHY */ 467 #if 1 468 /* 469 * XXX: force select internal phy. 470 * external phy routines are not tested. 471 */ 472 UDAV_CLRBIT(sc, UDAV_NCR, UDAV_NCR_EXT_PHY); 473 #else 474 if (sc->sc_flags & UDAV_EXT_PHY) 475 UDAV_SETBIT(sc, UDAV_NCR, UDAV_NCR_EXT_PHY); 476 else 477 UDAV_CLRBIT(sc, UDAV_NCR, UDAV_NCR_EXT_PHY); 478 #endif 479 480 UDAV_SETBIT(sc, UDAV_NCR, UDAV_NCR_RST); 481 482 for (i = 0; i < UDAV_TX_TIMEOUT; i++) { 483 if (!(udav_csr_read1(sc, UDAV_NCR) & UDAV_NCR_RST)) 484 break; 485 if (uether_pause(&sc->sc_ue, hz / 100)) 486 break; 487 } 488 489 uether_pause(&sc->sc_ue, hz / 100); 490 } 491 492 #define UDAV_BITS 6 493 static void 494 udav_setmulti(struct usb_ether *ue) 495 { 496 struct udav_softc *sc = ue->ue_sc; 497 struct ifnet *ifp = uether_getifp(&sc->sc_ue); 498 struct ifmultiaddr *ifma; 499 uint8_t hashtbl[8] = { 0, 0, 0, 0, 0, 0, 0, 0 }; 500 int h = 0; 501 502 UDAV_LOCK_ASSERT(sc); 503 504 if (ifp->if_flags & IFF_ALLMULTI || ifp->if_flags & IFF_PROMISC) { 505 UDAV_SETBIT(sc, UDAV_RCR, UDAV_RCR_ALL|UDAV_RCR_PRMSC); 506 return; 507 } 508 509 /* first, zot all the existing hash bits */ 510 memset(hashtbl, 0x00, sizeof(hashtbl)); 511 hashtbl[7] |= 0x80; /* broadcast address */ 512 udav_csr_write(sc, UDAV_MAR, hashtbl, sizeof(hashtbl)); 513 514 /* now program new ones */ 515 TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) 516 { 517 if (ifma->ifma_addr->sa_family != AF_LINK) 518 continue; 519 h = ether_crc32_be(LLADDR((struct sockaddr_dl *) 520 ifma->ifma_addr), ETHER_ADDR_LEN) >> 26; 521 hashtbl[h / 8] |= 1 << (h % 8); 522 } 523 524 /* disable all multicast */ 525 UDAV_CLRBIT(sc, UDAV_RCR, UDAV_RCR_ALL); 526 527 /* write hash value to the register */ 528 udav_csr_write(sc, UDAV_MAR, hashtbl, sizeof(hashtbl)); 529 } 530 531 static void 532 udav_setpromisc(struct usb_ether *ue) 533 { 534 struct udav_softc *sc = ue->ue_sc; 535 struct ifnet *ifp = uether_getifp(&sc->sc_ue); 536 uint8_t rxmode; 537 538 rxmode = udav_csr_read1(sc, UDAV_RCR); 539 rxmode &= ~(UDAV_RCR_ALL | UDAV_RCR_PRMSC); 540 541 if (ifp->if_flags & IFF_PROMISC) 542 rxmode |= UDAV_RCR_ALL | UDAV_RCR_PRMSC; 543 else if (ifp->if_flags & IFF_ALLMULTI) 544 rxmode |= UDAV_RCR_ALL; 545 546 /* write new mode bits */ 547 udav_csr_write1(sc, UDAV_RCR, rxmode); 548 } 549 550 static void 551 udav_start(struct usb_ether *ue) 552 { 553 struct udav_softc *sc = ue->ue_sc; 554 555 /* 556 * start the USB transfers, if not already started: 557 */ 558 usbd_transfer_start(sc->sc_xfer[UDAV_INTR_DT_RD]); 559 usbd_transfer_start(sc->sc_xfer[UDAV_BULK_DT_RD]); 560 usbd_transfer_start(sc->sc_xfer[UDAV_BULK_DT_WR]); 561 } 562 563 static void 564 udav_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error) 565 { 566 struct udav_softc *sc = usbd_xfer_softc(xfer); 567 struct ifnet *ifp = uether_getifp(&sc->sc_ue); 568 struct usb_page_cache *pc; 569 struct mbuf *m; 570 int extra_len; 571 int temp_len; 572 uint8_t buf[2]; 573 574 switch (USB_GET_STATE(xfer)) { 575 case USB_ST_TRANSFERRED: 576 DPRINTFN(11, "transfer complete\n"); 577 IFNET_STAT_INC(ifp, opackets, 1); 578 579 /* FALLTHROUGH */ 580 case USB_ST_SETUP: 581 tr_setup: 582 if ((sc->sc_flags & UDAV_FLAG_LINK) == 0) { 583 /* 584 * don't send anything if there is no link ! 585 */ 586 return; 587 } 588 m = ifq_dequeue(&ifp->if_snd); 589 590 if (m == NULL) 591 return; 592 if (m->m_pkthdr.len > MCLBYTES) 593 m->m_pkthdr.len = MCLBYTES; 594 if (m->m_pkthdr.len < UDAV_MIN_FRAME_LEN) { 595 extra_len = UDAV_MIN_FRAME_LEN - m->m_pkthdr.len; 596 } else { 597 extra_len = 0; 598 } 599 600 temp_len = (m->m_pkthdr.len + extra_len); 601 602 /* 603 * the frame length is specified in the first 2 bytes of the 604 * buffer 605 */ 606 buf[0] = (uint8_t)(temp_len); 607 buf[1] = (uint8_t)(temp_len >> 8); 608 609 temp_len += 2; 610 611 pc = usbd_xfer_get_frame(xfer, 0); 612 usbd_copy_in(pc, 0, buf, 2); 613 usbd_m_copy_in(pc, 2, m, 0, m->m_pkthdr.len); 614 615 if (extra_len) 616 usbd_frame_zero(pc, temp_len - extra_len, extra_len); 617 /* 618 * if there's a BPF listener, bounce a copy 619 * of this frame to him: 620 */ 621 BPF_MTAP(ifp, m); 622 623 m_freem(m); 624 625 usbd_xfer_set_frame_len(xfer, 0, temp_len); 626 usbd_transfer_submit(xfer); 627 return; 628 629 default: /* Error */ 630 DPRINTFN(11, "transfer error, %s\n", 631 usbd_errstr(error)); 632 633 IFNET_STAT_INC(ifp, oerrors, 1); 634 635 if (error != USB_ERR_CANCELLED) { 636 /* try to clear stall first */ 637 usbd_xfer_set_stall(xfer); 638 goto tr_setup; 639 } 640 return; 641 } 642 } 643 644 static void 645 udav_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error) 646 { 647 struct udav_softc *sc = usbd_xfer_softc(xfer); 648 struct usb_ether *ue = &sc->sc_ue; 649 struct ifnet *ifp = uether_getifp(ue); 650 struct usb_page_cache *pc; 651 struct udav_rxpkt stat; 652 int len; 653 int actlen; 654 655 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL); 656 657 switch (USB_GET_STATE(xfer)) { 658 case USB_ST_TRANSFERRED: 659 660 if (actlen < sizeof(stat) + ETHER_CRC_LEN) { 661 IFNET_STAT_INC(ifp, ierrors, 1); 662 goto tr_setup; 663 } 664 pc = usbd_xfer_get_frame(xfer, 0); 665 usbd_copy_out(pc, 0, &stat, sizeof(stat)); 666 actlen -= sizeof(stat); 667 len = min(actlen, le16toh(stat.pktlen)); 668 len -= ETHER_CRC_LEN; 669 670 if (stat.rxstat & UDAV_RSR_LCS) { 671 IFNET_STAT_INC(ifp, collisions, 1); 672 goto tr_setup; 673 } 674 if (stat.rxstat & UDAV_RSR_ERR) { 675 IFNET_STAT_INC(ifp, ierrors, 1); 676 goto tr_setup; 677 } 678 uether_rxbuf(ue, pc, sizeof(stat), len); 679 /* FALLTHROUGH */ 680 case USB_ST_SETUP: 681 tr_setup: 682 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 683 usbd_transfer_submit(xfer); 684 uether_rxflush(ue); 685 return; 686 687 default: /* Error */ 688 DPRINTF("bulk read error, %s\n", 689 usbd_errstr(error)); 690 691 if (error != USB_ERR_CANCELLED) { 692 /* try to clear stall first */ 693 usbd_xfer_set_stall(xfer); 694 goto tr_setup; 695 } 696 return; 697 } 698 } 699 700 static void 701 udav_intr_callback(struct usb_xfer *xfer, usb_error_t error) 702 { 703 switch (USB_GET_STATE(xfer)) { 704 case USB_ST_TRANSFERRED: 705 case USB_ST_SETUP: 706 tr_setup: 707 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 708 usbd_transfer_submit(xfer); 709 return; 710 711 default: /* Error */ 712 if (error != USB_ERR_CANCELLED) { 713 /* try to clear stall first */ 714 usbd_xfer_set_stall(xfer); 715 goto tr_setup; 716 } 717 return; 718 } 719 } 720 721 static void 722 udav_stop(struct usb_ether *ue) 723 { 724 struct udav_softc *sc = ue->ue_sc; 725 #if 0 /* XXX */ 726 struct ifnet *ifp = uether_getifp(&sc->sc_ue); 727 #endif 728 729 UDAV_LOCK_ASSERT(sc); 730 731 #if 0 /* XXX */ 732 ifp->if_drv_flags &= ~IFF_DRV_RUNNING; 733 #endif 734 if (!(sc->sc_flags & UDAV_FLAG_NO_PHY)) 735 sc->sc_flags &= ~UDAV_FLAG_LINK; 736 737 /* 738 * stop all the transfers, if not already stopped: 739 */ 740 usbd_transfer_stop(sc->sc_xfer[UDAV_BULK_DT_WR]); 741 usbd_transfer_stop(sc->sc_xfer[UDAV_BULK_DT_RD]); 742 usbd_transfer_stop(sc->sc_xfer[UDAV_INTR_DT_RD]); 743 744 udav_reset(sc); 745 } 746 747 static int 748 udav_ifmedia_upd(struct ifnet *ifp) 749 { 750 struct udav_softc *sc = ifp->if_softc; 751 struct mii_data *mii = GET_MII(sc); 752 struct mii_softc *miisc; 753 int error; 754 755 UDAV_LOCK_ASSERT(sc); 756 757 sc->sc_flags &= ~UDAV_FLAG_LINK; 758 LIST_FOREACH(miisc, &mii->mii_phys, mii_list) 759 mii_phy_reset(miisc); 760 error = mii_mediachg(mii); 761 return (error); 762 } 763 764 static void 765 udav_ifmedia_status(struct ifnet *ifp, struct ifmediareq *ifmr) 766 { 767 struct udav_softc *sc = ifp->if_softc; 768 struct mii_data *mii = GET_MII(sc); 769 770 UDAV_LOCK(sc); 771 mii_pollstat(mii); 772 ifmr->ifm_active = mii->mii_media_active; 773 ifmr->ifm_status = mii->mii_media_status; 774 UDAV_UNLOCK(sc); 775 } 776 777 static void 778 udav_tick(struct usb_ether *ue) 779 { 780 struct udav_softc *sc = ue->ue_sc; 781 struct mii_data *mii = GET_MII(sc); 782 783 UDAV_LOCK_ASSERT(sc); 784 785 mii_tick(mii); 786 if ((sc->sc_flags & UDAV_FLAG_LINK) == 0 787 && mii->mii_media_status & IFM_ACTIVE && 788 IFM_SUBTYPE(mii->mii_media_active) != IFM_NONE) { 789 sc->sc_flags |= UDAV_FLAG_LINK; 790 udav_start(ue); 791 } 792 } 793 794 static int 795 udav_miibus_readreg(device_t dev, int phy, int reg) 796 { 797 struct udav_softc *sc = device_get_softc(dev); 798 uint16_t data16; 799 uint8_t val[2]; 800 int locked; 801 802 /* XXX: one PHY only for the internal PHY */ 803 if (phy != 0) 804 return (0); 805 806 locked = lockowned(&sc->sc_lock); 807 if (!locked) 808 UDAV_LOCK(sc); 809 810 /* select internal PHY and set PHY register address */ 811 udav_csr_write1(sc, UDAV_EPAR, 812 UDAV_EPAR_PHY_ADR0 | (reg & UDAV_EPAR_EROA_MASK)); 813 814 /* select PHY operation and start read command */ 815 udav_csr_write1(sc, UDAV_EPCR, UDAV_EPCR_EPOS | UDAV_EPCR_ERPRR); 816 817 /* XXX: should we wait? */ 818 819 /* end read command */ 820 UDAV_CLRBIT(sc, UDAV_EPCR, UDAV_EPCR_ERPRR); 821 822 /* retrieve the result from data registers */ 823 udav_csr_read(sc, UDAV_EPDRL, val, 2); 824 825 data16 = (val[0] | (val[1] << 8)); 826 827 DPRINTFN(11, "phy=%d reg=0x%04x => 0x%04x\n", 828 phy, reg, data16); 829 830 if (!locked) 831 UDAV_UNLOCK(sc); 832 return (data16); 833 } 834 835 static int 836 udav_miibus_writereg(device_t dev, int phy, int reg, int data) 837 { 838 struct udav_softc *sc = device_get_softc(dev); 839 uint8_t val[2]; 840 int locked; 841 842 /* XXX: one PHY only for the internal PHY */ 843 if (phy != 0) 844 return (0); 845 846 locked = lockowned(&sc->sc_lock); 847 if (!locked) 848 UDAV_LOCK(sc); 849 850 /* select internal PHY and set PHY register address */ 851 udav_csr_write1(sc, UDAV_EPAR, 852 UDAV_EPAR_PHY_ADR0 | (reg & UDAV_EPAR_EROA_MASK)); 853 854 /* put the value to the data registers */ 855 val[0] = (data & 0xff); 856 val[1] = (data >> 8) & 0xff; 857 udav_csr_write(sc, UDAV_EPDRL, val, 2); 858 859 /* select PHY operation and start write command */ 860 udav_csr_write1(sc, UDAV_EPCR, UDAV_EPCR_EPOS | UDAV_EPCR_ERPRW); 861 862 /* XXX: should we wait? */ 863 864 /* end write command */ 865 UDAV_CLRBIT(sc, UDAV_EPCR, UDAV_EPCR_ERPRW); 866 867 if (!locked) 868 UDAV_UNLOCK(sc); 869 return (0); 870 } 871 872 static void 873 udav_miibus_statchg(device_t dev) 874 { 875 /* nothing to do */ 876 } 877