if_udav.c revision 227843
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: head/sys/dev/usb/net/if_udav.c 227843 2011-11-22 21:28:20Z marius $ */ 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/cdefs.h> 47__FBSDID("$FreeBSD: head/sys/dev/usb/net/if_udav.c 227843 2011-11-22 21:28:20Z marius $"); 48 49#include <sys/stdint.h> 50#include <sys/stddef.h> 51#include <sys/param.h> 52#include <sys/queue.h> 53#include <sys/types.h> 54#include <sys/systm.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 <dev/usb/usb.h> 69#include <dev/usb/usbdi.h> 70#include <dev/usb/usbdi_util.h> 71#include "usbdevs.h" 72 73#define USB_DEBUG_VAR udav_debug 74#include <dev/usb/usb_debug.h> 75#include <dev/usb/usb_process.h> 76 77#include <dev/usb/net/usb_ethernet.h> 78#include <dev/usb/net/if_udavreg.h> 79 80/* prototypes */ 81 82static device_probe_t udav_probe; 83static device_attach_t udav_attach; 84static device_detach_t udav_detach; 85 86static usb_callback_t udav_bulk_write_callback; 87static usb_callback_t udav_bulk_read_callback; 88static usb_callback_t udav_intr_callback; 89 90static uether_fn_t udav_attach_post; 91static uether_fn_t udav_init; 92static uether_fn_t udav_stop; 93static uether_fn_t udav_start; 94static uether_fn_t udav_tick; 95static uether_fn_t udav_setmulti; 96static uether_fn_t udav_setpromisc; 97 98static int udav_csr_read(struct udav_softc *, uint16_t, void *, int); 99static int udav_csr_write(struct udav_softc *, uint16_t, void *, int); 100static uint8_t udav_csr_read1(struct udav_softc *, uint16_t); 101static int udav_csr_write1(struct udav_softc *, uint16_t, uint8_t); 102static void udav_reset(struct udav_softc *); 103static int udav_ifmedia_upd(struct ifnet *); 104static void udav_ifmedia_status(struct ifnet *, struct ifmediareq *); 105 106static miibus_readreg_t udav_miibus_readreg; 107static miibus_writereg_t udav_miibus_writereg; 108static miibus_statchg_t udav_miibus_statchg; 109 110static const struct usb_config udav_config[UDAV_N_TRANSFER] = { 111 112 [UDAV_BULK_DT_WR] = { 113 .type = UE_BULK, 114 .endpoint = UE_ADDR_ANY, 115 .direction = UE_DIR_OUT, 116 .bufsize = (MCLBYTES + 2), 117 .flags = {.pipe_bof = 1,.force_short_xfer = 1,}, 118 .callback = udav_bulk_write_callback, 119 .timeout = 10000, /* 10 seconds */ 120 }, 121 122 [UDAV_BULK_DT_RD] = { 123 .type = UE_BULK, 124 .endpoint = UE_ADDR_ANY, 125 .direction = UE_DIR_IN, 126 .bufsize = (MCLBYTES + 3), 127 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 128 .callback = udav_bulk_read_callback, 129 .timeout = 0, /* no timeout */ 130 }, 131 132 [UDAV_INTR_DT_RD] = { 133 .type = UE_INTERRUPT, 134 .endpoint = UE_ADDR_ANY, 135 .direction = UE_DIR_IN, 136 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 137 .bufsize = 0, /* use wMaxPacketSize */ 138 .callback = udav_intr_callback, 139 }, 140}; 141 142static device_method_t udav_methods[] = { 143 /* Device interface */ 144 DEVMETHOD(device_probe, udav_probe), 145 DEVMETHOD(device_attach, udav_attach), 146 DEVMETHOD(device_detach, udav_detach), 147 148 /* MII interface */ 149 DEVMETHOD(miibus_readreg, udav_miibus_readreg), 150 DEVMETHOD(miibus_writereg, udav_miibus_writereg), 151 DEVMETHOD(miibus_statchg, udav_miibus_statchg), 152 153 DEVMETHOD_END 154}; 155 156static driver_t udav_driver = { 157 .name = "udav", 158 .methods = udav_methods, 159 .size = sizeof(struct udav_softc), 160}; 161 162static devclass_t udav_devclass; 163 164DRIVER_MODULE(udav, uhub, udav_driver, udav_devclass, NULL, 0); 165DRIVER_MODULE(miibus, udav, miibus_driver, miibus_devclass, 0, 0); 166MODULE_DEPEND(udav, uether, 1, 1, 1); 167MODULE_DEPEND(udav, usb, 1, 1, 1); 168MODULE_DEPEND(udav, ether, 1, 1, 1); 169MODULE_DEPEND(udav, miibus, 1, 1, 1); 170MODULE_VERSION(udav, 1); 171 172static const struct usb_ether_methods udav_ue_methods = { 173 .ue_attach_post = udav_attach_post, 174 .ue_start = udav_start, 175 .ue_init = udav_init, 176 .ue_stop = udav_stop, 177 .ue_tick = udav_tick, 178 .ue_setmulti = udav_setmulti, 179 .ue_setpromisc = udav_setpromisc, 180 .ue_mii_upd = udav_ifmedia_upd, 181 .ue_mii_sts = udav_ifmedia_status, 182}; 183 184#ifdef USB_DEBUG 185static int udav_debug = 0; 186 187static SYSCTL_NODE(_hw_usb, OID_AUTO, udav, CTLFLAG_RW, 0, "USB udav"); 188SYSCTL_INT(_hw_usb_udav, OID_AUTO, debug, CTLFLAG_RW, &udav_debug, 0, 189 "Debug level"); 190#endif 191 192#define UDAV_SETBIT(sc, reg, x) \ 193 udav_csr_write1(sc, reg, udav_csr_read1(sc, reg) | (x)) 194 195#define UDAV_CLRBIT(sc, reg, x) \ 196 udav_csr_write1(sc, reg, udav_csr_read1(sc, reg) & ~(x)) 197 198static const STRUCT_USB_HOST_ID udav_devs[] = { 199 /* ShanTou DM9601 USB NIC */ 200 {USB_VPI(USB_VENDOR_SHANTOU, USB_PRODUCT_SHANTOU_DM9601, 0)}, 201 /* ShanTou ST268 USB NIC */ 202 {USB_VPI(USB_VENDOR_SHANTOU, USB_PRODUCT_SHANTOU_ST268, 0)}, 203 /* Corega USB-TXC */ 204 {USB_VPI(USB_VENDOR_COREGA, USB_PRODUCT_COREGA_FETHER_USB_TXC, 0)}, 205 /* ShanTou AMD8515 USB NIC */ 206 {USB_VPI(USB_VENDOR_SHANTOU, USB_PRODUCT_SHANTOU_ADM8515, 0)}, 207 /* Kontron AG USB Ethernet */ 208 {USB_VPI(USB_VENDOR_KONTRON, USB_PRODUCT_KONTRON_DM9601, 0)}, 209 {USB_VPI(USB_VENDOR_KONTRON, USB_PRODUCT_KONTRON_JP1082, 0)}, 210}; 211 212static void 213udav_attach_post(struct usb_ether *ue) 214{ 215 struct udav_softc *sc = uether_getsc(ue); 216 217 /* reset the adapter */ 218 udav_reset(sc); 219 220 /* Get Ethernet Address */ 221 udav_csr_read(sc, UDAV_PAR, ue->ue_eaddr, ETHER_ADDR_LEN); 222} 223 224static int 225udav_probe(device_t dev) 226{ 227 struct usb_attach_arg *uaa = device_get_ivars(dev); 228 229 if (uaa->usb_mode != USB_MODE_HOST) 230 return (ENXIO); 231 if (uaa->info.bConfigIndex != UDAV_CONFIG_INDEX) 232 return (ENXIO); 233 if (uaa->info.bIfaceIndex != UDAV_IFACE_INDEX) 234 return (ENXIO); 235 236 return (usbd_lookup_id_by_uaa(udav_devs, sizeof(udav_devs), uaa)); 237} 238 239static int 240udav_attach(device_t dev) 241{ 242 struct usb_attach_arg *uaa = device_get_ivars(dev); 243 struct udav_softc *sc = device_get_softc(dev); 244 struct usb_ether *ue = &sc->sc_ue; 245 uint8_t iface_index; 246 int error; 247 248 sc->sc_flags = USB_GET_DRIVER_INFO(uaa); 249 250 device_set_usb_desc(dev); 251 252 mtx_init(&sc->sc_mtx, device_get_nameunit(dev), NULL, MTX_DEF); 253 254 iface_index = UDAV_IFACE_INDEX; 255 error = usbd_transfer_setup(uaa->device, &iface_index, 256 sc->sc_xfer, udav_config, UDAV_N_TRANSFER, sc, &sc->sc_mtx); 257 if (error) { 258 device_printf(dev, "allocating USB transfers failed\n"); 259 goto detach; 260 } 261 262 ue->ue_sc = sc; 263 ue->ue_dev = dev; 264 ue->ue_udev = uaa->device; 265 ue->ue_mtx = &sc->sc_mtx; 266 ue->ue_methods = &udav_ue_methods; 267 268 error = uether_ifattach(ue); 269 if (error) { 270 device_printf(dev, "could not attach interface\n"); 271 goto detach; 272 } 273 274 return (0); /* success */ 275 276detach: 277 udav_detach(dev); 278 return (ENXIO); /* failure */ 279} 280 281static int 282udav_detach(device_t dev) 283{ 284 struct udav_softc *sc = device_get_softc(dev); 285 struct usb_ether *ue = &sc->sc_ue; 286 287 usbd_transfer_unsetup(sc->sc_xfer, UDAV_N_TRANSFER); 288 uether_ifdetach(ue); 289 mtx_destroy(&sc->sc_mtx); 290 291 return (0); 292} 293 294#if 0 295static int 296udav_mem_read(struct udav_softc *sc, uint16_t offset, void *buf, 297 int len) 298{ 299 struct usb_device_request req; 300 301 len &= 0xff; 302 303 req.bmRequestType = UT_READ_VENDOR_DEVICE; 304 req.bRequest = UDAV_REQ_MEM_READ; 305 USETW(req.wValue, 0x0000); 306 USETW(req.wIndex, offset); 307 USETW(req.wLength, len); 308 309 return (uether_do_request(&sc->sc_ue, &req, buf, 1000)); 310} 311 312static int 313udav_mem_write(struct udav_softc *sc, uint16_t offset, void *buf, 314 int len) 315{ 316 struct usb_device_request req; 317 318 len &= 0xff; 319 320 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 321 req.bRequest = UDAV_REQ_MEM_WRITE; 322 USETW(req.wValue, 0x0000); 323 USETW(req.wIndex, offset); 324 USETW(req.wLength, len); 325 326 return (uether_do_request(&sc->sc_ue, &req, buf, 1000)); 327} 328 329static int 330udav_mem_write1(struct udav_softc *sc, uint16_t offset, 331 uint8_t ch) 332{ 333 struct usb_device_request req; 334 335 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 336 req.bRequest = UDAV_REQ_MEM_WRITE1; 337 USETW(req.wValue, ch); 338 USETW(req.wIndex, offset); 339 USETW(req.wLength, 0x0000); 340 341 return (uether_do_request(&sc->sc_ue, &req, NULL, 1000)); 342} 343#endif 344 345static int 346udav_csr_read(struct udav_softc *sc, uint16_t offset, void *buf, int len) 347{ 348 struct usb_device_request req; 349 350 len &= 0xff; 351 352 req.bmRequestType = UT_READ_VENDOR_DEVICE; 353 req.bRequest = UDAV_REQ_REG_READ; 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 361static int 362udav_csr_write(struct udav_softc *sc, uint16_t offset, void *buf, int len) 363{ 364 struct usb_device_request req; 365 366 offset &= 0xff; 367 len &= 0xff; 368 369 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 370 req.bRequest = UDAV_REQ_REG_WRITE; 371 USETW(req.wValue, 0x0000); 372 USETW(req.wIndex, offset); 373 USETW(req.wLength, len); 374 375 return (uether_do_request(&sc->sc_ue, &req, buf, 1000)); 376} 377 378static uint8_t 379udav_csr_read1(struct udav_softc *sc, uint16_t offset) 380{ 381 uint8_t val; 382 383 udav_csr_read(sc, offset, &val, 1); 384 return (val); 385} 386 387static int 388udav_csr_write1(struct udav_softc *sc, uint16_t offset, 389 uint8_t ch) 390{ 391 struct usb_device_request req; 392 393 offset &= 0xff; 394 395 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 396 req.bRequest = UDAV_REQ_REG_WRITE1; 397 USETW(req.wValue, ch); 398 USETW(req.wIndex, offset); 399 USETW(req.wLength, 0x0000); 400 401 return (uether_do_request(&sc->sc_ue, &req, NULL, 1000)); 402} 403 404static void 405udav_init(struct usb_ether *ue) 406{ 407 struct udav_softc *sc = ue->ue_sc; 408 struct ifnet *ifp = uether_getifp(&sc->sc_ue); 409 410 UDAV_LOCK_ASSERT(sc, MA_OWNED); 411 412 /* 413 * Cancel pending I/O 414 */ 415 udav_stop(ue); 416 417 /* set MAC address */ 418 udav_csr_write(sc, UDAV_PAR, IF_LLADDR(ifp), ETHER_ADDR_LEN); 419 420 /* initialize network control register */ 421 422 /* disable loopback */ 423 UDAV_CLRBIT(sc, UDAV_NCR, UDAV_NCR_LBK0 | UDAV_NCR_LBK1); 424 425 /* Initialize RX control register */ 426 UDAV_SETBIT(sc, UDAV_RCR, UDAV_RCR_DIS_LONG | UDAV_RCR_DIS_CRC); 427 428 /* load multicast filter and update promiscious mode bit */ 429 udav_setpromisc(ue); 430 431 /* enable RX */ 432 UDAV_SETBIT(sc, UDAV_RCR, UDAV_RCR_RXEN); 433 434 /* clear POWER_DOWN state of internal PHY */ 435 UDAV_SETBIT(sc, UDAV_GPCR, UDAV_GPCR_GEP_CNTL0); 436 UDAV_CLRBIT(sc, UDAV_GPR, UDAV_GPR_GEPIO0); 437 438 usbd_xfer_set_stall(sc->sc_xfer[UDAV_BULK_DT_WR]); 439 440 ifp->if_drv_flags |= IFF_DRV_RUNNING; 441 udav_start(ue); 442} 443 444static void 445udav_reset(struct udav_softc *sc) 446{ 447 int i; 448 449 /* Select PHY */ 450#if 1 451 /* 452 * XXX: force select internal phy. 453 * external phy routines are not tested. 454 */ 455 UDAV_CLRBIT(sc, UDAV_NCR, UDAV_NCR_EXT_PHY); 456#else 457 if (sc->sc_flags & UDAV_EXT_PHY) 458 UDAV_SETBIT(sc, UDAV_NCR, UDAV_NCR_EXT_PHY); 459 else 460 UDAV_CLRBIT(sc, UDAV_NCR, UDAV_NCR_EXT_PHY); 461#endif 462 463 UDAV_SETBIT(sc, UDAV_NCR, UDAV_NCR_RST); 464 465 for (i = 0; i < UDAV_TX_TIMEOUT; i++) { 466 if (!(udav_csr_read1(sc, UDAV_NCR) & UDAV_NCR_RST)) 467 break; 468 if (uether_pause(&sc->sc_ue, hz / 100)) 469 break; 470 } 471 472 uether_pause(&sc->sc_ue, hz / 100); 473} 474 475#define UDAV_BITS 6 476static void 477udav_setmulti(struct usb_ether *ue) 478{ 479 struct udav_softc *sc = ue->ue_sc; 480 struct ifnet *ifp = uether_getifp(&sc->sc_ue); 481 struct ifmultiaddr *ifma; 482 uint8_t hashtbl[8] = { 0, 0, 0, 0, 0, 0, 0, 0 }; 483 int h = 0; 484 485 UDAV_LOCK_ASSERT(sc, MA_OWNED); 486 487 if (ifp->if_flags & IFF_ALLMULTI || ifp->if_flags & IFF_PROMISC) { 488 UDAV_SETBIT(sc, UDAV_RCR, UDAV_RCR_ALL|UDAV_RCR_PRMSC); 489 return; 490 } 491 492 /* first, zot all the existing hash bits */ 493 memset(hashtbl, 0x00, sizeof(hashtbl)); 494 hashtbl[7] |= 0x80; /* broadcast address */ 495 udav_csr_write(sc, UDAV_MAR, hashtbl, sizeof(hashtbl)); 496 497 /* now program new ones */ 498 if_maddr_rlock(ifp); 499 TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) 500 { 501 if (ifma->ifma_addr->sa_family != AF_LINK) 502 continue; 503 h = ether_crc32_be(LLADDR((struct sockaddr_dl *) 504 ifma->ifma_addr), ETHER_ADDR_LEN) >> 26; 505 hashtbl[h / 8] |= 1 << (h % 8); 506 } 507 if_maddr_runlock(ifp); 508 509 /* disable all multicast */ 510 UDAV_CLRBIT(sc, UDAV_RCR, UDAV_RCR_ALL); 511 512 /* write hash value to the register */ 513 udav_csr_write(sc, UDAV_MAR, hashtbl, sizeof(hashtbl)); 514} 515 516static void 517udav_setpromisc(struct usb_ether *ue) 518{ 519 struct udav_softc *sc = ue->ue_sc; 520 struct ifnet *ifp = uether_getifp(&sc->sc_ue); 521 uint8_t rxmode; 522 523 rxmode = udav_csr_read1(sc, UDAV_RCR); 524 rxmode &= ~(UDAV_RCR_ALL | UDAV_RCR_PRMSC); 525 526 if (ifp->if_flags & IFF_PROMISC) 527 rxmode |= UDAV_RCR_ALL | UDAV_RCR_PRMSC; 528 else if (ifp->if_flags & IFF_ALLMULTI) 529 rxmode |= UDAV_RCR_ALL; 530 531 /* write new mode bits */ 532 udav_csr_write1(sc, UDAV_RCR, rxmode); 533} 534 535static void 536udav_start(struct usb_ether *ue) 537{ 538 struct udav_softc *sc = ue->ue_sc; 539 540 /* 541 * start the USB transfers, if not already started: 542 */ 543 usbd_transfer_start(sc->sc_xfer[UDAV_INTR_DT_RD]); 544 usbd_transfer_start(sc->sc_xfer[UDAV_BULK_DT_RD]); 545 usbd_transfer_start(sc->sc_xfer[UDAV_BULK_DT_WR]); 546} 547 548static void 549udav_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error) 550{ 551 struct udav_softc *sc = usbd_xfer_softc(xfer); 552 struct ifnet *ifp = uether_getifp(&sc->sc_ue); 553 struct usb_page_cache *pc; 554 struct mbuf *m; 555 int extra_len; 556 int temp_len; 557 uint8_t buf[2]; 558 559 switch (USB_GET_STATE(xfer)) { 560 case USB_ST_TRANSFERRED: 561 DPRINTFN(11, "transfer complete\n"); 562 ifp->if_opackets++; 563 564 /* FALLTHROUGH */ 565 case USB_ST_SETUP: 566tr_setup: 567 if ((sc->sc_flags & UDAV_FLAG_LINK) == 0) { 568 /* 569 * don't send anything if there is no link ! 570 */ 571 return; 572 } 573 IFQ_DRV_DEQUEUE(&ifp->if_snd, m); 574 575 if (m == NULL) 576 return; 577 if (m->m_pkthdr.len > MCLBYTES) 578 m->m_pkthdr.len = MCLBYTES; 579 if (m->m_pkthdr.len < UDAV_MIN_FRAME_LEN) { 580 extra_len = UDAV_MIN_FRAME_LEN - m->m_pkthdr.len; 581 } else { 582 extra_len = 0; 583 } 584 585 temp_len = (m->m_pkthdr.len + extra_len); 586 587 /* 588 * the frame length is specified in the first 2 bytes of the 589 * buffer 590 */ 591 buf[0] = (uint8_t)(temp_len); 592 buf[1] = (uint8_t)(temp_len >> 8); 593 594 temp_len += 2; 595 596 pc = usbd_xfer_get_frame(xfer, 0); 597 usbd_copy_in(pc, 0, buf, 2); 598 usbd_m_copy_in(pc, 2, m, 0, m->m_pkthdr.len); 599 600 if (extra_len) 601 usbd_frame_zero(pc, temp_len - extra_len, extra_len); 602 /* 603 * if there's a BPF listener, bounce a copy 604 * of this frame to him: 605 */ 606 BPF_MTAP(ifp, m); 607 608 m_freem(m); 609 610 usbd_xfer_set_frame_len(xfer, 0, temp_len); 611 usbd_transfer_submit(xfer); 612 return; 613 614 default: /* Error */ 615 DPRINTFN(11, "transfer error, %s\n", 616 usbd_errstr(error)); 617 618 ifp->if_oerrors++; 619 620 if (error != USB_ERR_CANCELLED) { 621 /* try to clear stall first */ 622 usbd_xfer_set_stall(xfer); 623 goto tr_setup; 624 } 625 return; 626 } 627} 628 629static void 630udav_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error) 631{ 632 struct udav_softc *sc = usbd_xfer_softc(xfer); 633 struct usb_ether *ue = &sc->sc_ue; 634 struct ifnet *ifp = uether_getifp(ue); 635 struct usb_page_cache *pc; 636 struct udav_rxpkt stat; 637 int len; 638 int actlen; 639 640 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL); 641 642 switch (USB_GET_STATE(xfer)) { 643 case USB_ST_TRANSFERRED: 644 645 if (actlen < sizeof(stat) + ETHER_CRC_LEN) { 646 ifp->if_ierrors++; 647 goto tr_setup; 648 } 649 pc = usbd_xfer_get_frame(xfer, 0); 650 usbd_copy_out(pc, 0, &stat, sizeof(stat)); 651 actlen -= sizeof(stat); 652 len = min(actlen, le16toh(stat.pktlen)); 653 len -= ETHER_CRC_LEN; 654 655 if (stat.rxstat & UDAV_RSR_LCS) { 656 ifp->if_collisions++; 657 goto tr_setup; 658 } 659 if (stat.rxstat & UDAV_RSR_ERR) { 660 ifp->if_ierrors++; 661 goto tr_setup; 662 } 663 uether_rxbuf(ue, pc, sizeof(stat), len); 664 /* FALLTHROUGH */ 665 case USB_ST_SETUP: 666tr_setup: 667 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 668 usbd_transfer_submit(xfer); 669 uether_rxflush(ue); 670 return; 671 672 default: /* Error */ 673 DPRINTF("bulk read error, %s\n", 674 usbd_errstr(error)); 675 676 if (error != USB_ERR_CANCELLED) { 677 /* try to clear stall first */ 678 usbd_xfer_set_stall(xfer); 679 goto tr_setup; 680 } 681 return; 682 } 683} 684 685static void 686udav_intr_callback(struct usb_xfer *xfer, usb_error_t error) 687{ 688 switch (USB_GET_STATE(xfer)) { 689 case USB_ST_TRANSFERRED: 690 case USB_ST_SETUP: 691tr_setup: 692 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 693 usbd_transfer_submit(xfer); 694 return; 695 696 default: /* Error */ 697 if (error != USB_ERR_CANCELLED) { 698 /* try to clear stall first */ 699 usbd_xfer_set_stall(xfer); 700 goto tr_setup; 701 } 702 return; 703 } 704} 705 706static void 707udav_stop(struct usb_ether *ue) 708{ 709 struct udav_softc *sc = ue->ue_sc; 710 struct ifnet *ifp = uether_getifp(&sc->sc_ue); 711 712 UDAV_LOCK_ASSERT(sc, MA_OWNED); 713 714 ifp->if_drv_flags &= ~IFF_DRV_RUNNING; 715 sc->sc_flags &= ~UDAV_FLAG_LINK; 716 717 /* 718 * stop all the transfers, if not already stopped: 719 */ 720 usbd_transfer_stop(sc->sc_xfer[UDAV_BULK_DT_WR]); 721 usbd_transfer_stop(sc->sc_xfer[UDAV_BULK_DT_RD]); 722 usbd_transfer_stop(sc->sc_xfer[UDAV_INTR_DT_RD]); 723 724 udav_reset(sc); 725} 726 727static int 728udav_ifmedia_upd(struct ifnet *ifp) 729{ 730 struct udav_softc *sc = ifp->if_softc; 731 struct mii_data *mii = GET_MII(sc); 732 struct mii_softc *miisc; 733 734 UDAV_LOCK_ASSERT(sc, MA_OWNED); 735 736 sc->sc_flags &= ~UDAV_FLAG_LINK; 737 LIST_FOREACH(miisc, &mii->mii_phys, mii_list) 738 PHY_RESET(miisc); 739 mii_mediachg(mii); 740 return (0); 741} 742 743static void 744udav_ifmedia_status(struct ifnet *ifp, struct ifmediareq *ifmr) 745{ 746 struct udav_softc *sc = ifp->if_softc; 747 struct mii_data *mii = GET_MII(sc); 748 749 UDAV_LOCK(sc); 750 mii_pollstat(mii); 751 ifmr->ifm_active = mii->mii_media_active; 752 ifmr->ifm_status = mii->mii_media_status; 753 UDAV_UNLOCK(sc); 754} 755 756static void 757udav_tick(struct usb_ether *ue) 758{ 759 struct udav_softc *sc = ue->ue_sc; 760 struct mii_data *mii = GET_MII(sc); 761 762 UDAV_LOCK_ASSERT(sc, MA_OWNED); 763 764 mii_tick(mii); 765 if ((sc->sc_flags & UDAV_FLAG_LINK) == 0 766 && mii->mii_media_status & IFM_ACTIVE && 767 IFM_SUBTYPE(mii->mii_media_active) != IFM_NONE) { 768 sc->sc_flags |= UDAV_FLAG_LINK; 769 udav_start(ue); 770 } 771} 772 773static int 774udav_miibus_readreg(device_t dev, int phy, int reg) 775{ 776 struct udav_softc *sc = device_get_softc(dev); 777 uint16_t data16; 778 uint8_t val[2]; 779 int locked; 780 781 /* XXX: one PHY only for the internal PHY */ 782 if (phy != 0) 783 return (0); 784 785 locked = mtx_owned(&sc->sc_mtx); 786 if (!locked) 787 UDAV_LOCK(sc); 788 789 /* select internal PHY and set PHY register address */ 790 udav_csr_write1(sc, UDAV_EPAR, 791 UDAV_EPAR_PHY_ADR0 | (reg & UDAV_EPAR_EROA_MASK)); 792 793 /* select PHY operation and start read command */ 794 udav_csr_write1(sc, UDAV_EPCR, UDAV_EPCR_EPOS | UDAV_EPCR_ERPRR); 795 796 /* XXX: should we wait? */ 797 798 /* end read command */ 799 UDAV_CLRBIT(sc, UDAV_EPCR, UDAV_EPCR_ERPRR); 800 801 /* retrieve the result from data registers */ 802 udav_csr_read(sc, UDAV_EPDRL, val, 2); 803 804 data16 = (val[0] | (val[1] << 8)); 805 806 DPRINTFN(11, "phy=%d reg=0x%04x => 0x%04x\n", 807 phy, reg, data16); 808 809 if (!locked) 810 UDAV_UNLOCK(sc); 811 return (data16); 812} 813 814static int 815udav_miibus_writereg(device_t dev, int phy, int reg, int data) 816{ 817 struct udav_softc *sc = device_get_softc(dev); 818 uint8_t val[2]; 819 int locked; 820 821 /* XXX: one PHY only for the internal PHY */ 822 if (phy != 0) 823 return (0); 824 825 locked = mtx_owned(&sc->sc_mtx); 826 if (!locked) 827 UDAV_LOCK(sc); 828 829 /* select internal PHY and set PHY register address */ 830 udav_csr_write1(sc, UDAV_EPAR, 831 UDAV_EPAR_PHY_ADR0 | (reg & UDAV_EPAR_EROA_MASK)); 832 833 /* put the value to the data registers */ 834 val[0] = (data & 0xff); 835 val[1] = (data >> 8) & 0xff; 836 udav_csr_write(sc, UDAV_EPDRL, val, 2); 837 838 /* select PHY operation and start write command */ 839 udav_csr_write1(sc, UDAV_EPCR, UDAV_EPCR_EPOS | UDAV_EPCR_ERPRW); 840 841 /* XXX: should we wait? */ 842 843 /* end write command */ 844 UDAV_CLRBIT(sc, UDAV_EPCR, UDAV_EPCR_ERPRW); 845 846 if (!locked) 847 UDAV_UNLOCK(sc); 848 return (0); 849} 850 851static void 852udav_miibus_statchg(device_t dev) 853{ 854 /* nothing to do */ 855} 856