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/cdefs.h> 47 __FBSDID("$FreeBSD$"); 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 82 static device_probe_t udav_probe; 83 static device_attach_t udav_attach; 84 static device_detach_t udav_detach; 85 86 static usb_callback_t udav_bulk_write_callback; 87 static usb_callback_t udav_bulk_read_callback; 88 static usb_callback_t udav_intr_callback; 89 90 static uether_fn_t udav_attach_post; 91 static uether_fn_t udav_init; 92 static uether_fn_t udav_stop; 93 static uether_fn_t udav_start; 94 static uether_fn_t udav_tick; 95 static uether_fn_t udav_setmulti; 96 static uether_fn_t udav_setpromisc; 97 98 static int udav_csr_read(struct udav_softc *, uint16_t, void *, int); 99 static int udav_csr_write(struct udav_softc *, uint16_t, void *, int); 100 static uint8_t udav_csr_read1(struct udav_softc *, uint16_t); 101 static int udav_csr_write1(struct udav_softc *, uint16_t, uint8_t); 102 static void udav_reset(struct udav_softc *); 103 static int udav_ifmedia_upd(struct ifnet *); 104 static void udav_ifmedia_status(struct ifnet *, struct ifmediareq *); 105 106 static miibus_readreg_t udav_miibus_readreg; 107 static miibus_writereg_t udav_miibus_writereg; 108 static miibus_statchg_t udav_miibus_statchg; 109 110 static 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 }; 141 142 static 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 /* bus interface */ 149 DEVMETHOD(bus_print_child, bus_generic_print_child), 150 151 /* MII interface */ 152 DEVMETHOD(miibus_readreg, udav_miibus_readreg), 153 DEVMETHOD(miibus_writereg, udav_miibus_writereg), 154 DEVMETHOD(miibus_statchg, udav_miibus_statchg), 155 156 {0, 0} 157 }; 158 159 static driver_t udav_driver = { 160 .name = "udav", 161 .methods = udav_methods, 162 .size = sizeof(struct udav_softc), 163 }; 164 165 static devclass_t udav_devclass; 166 167 DRIVER_MODULE(udav, uhub, udav_driver, udav_devclass, NULL, 0); 168 DRIVER_MODULE(miibus, udav, miibus_driver, miibus_devclass, 0, 0); 169 MODULE_DEPEND(udav, uether, 1, 1, 1); 170 MODULE_DEPEND(udav, usb, 1, 1, 1); 171 MODULE_DEPEND(udav, ether, 1, 1, 1); 172 MODULE_DEPEND(udav, miibus, 1, 1, 1); 173 MODULE_VERSION(udav, 1); 174 175 static const struct usb_ether_methods udav_ue_methods = { 176 .ue_attach_post = udav_attach_post, 177 .ue_start = udav_start, 178 .ue_init = udav_init, 179 .ue_stop = udav_stop, 180 .ue_tick = udav_tick, 181 .ue_setmulti = udav_setmulti, 182 .ue_setpromisc = udav_setpromisc, 183 .ue_mii_upd = udav_ifmedia_upd, 184 .ue_mii_sts = udav_ifmedia_status, 185 }; 186 187 #ifdef USB_DEBUG 188 static int udav_debug = 0; 189 190 static SYSCTL_NODE(_hw_usb, OID_AUTO, udav, CTLFLAG_RW, 0, "USB udav"); 191 SYSCTL_INT(_hw_usb_udav, OID_AUTO, debug, CTLFLAG_RW, &udav_debug, 0, 192 "Debug level"); 193 #endif 194 195 #define UDAV_SETBIT(sc, reg, x) \ 196 udav_csr_write1(sc, reg, udav_csr_read1(sc, reg) | (x)) 197 198 #define UDAV_CLRBIT(sc, reg, x) \ 199 udav_csr_write1(sc, reg, udav_csr_read1(sc, reg) & ~(x)) 200 201 static const STRUCT_USB_HOST_ID udav_devs[] = { 202 /* ShanTou DM9601 USB NIC */ 203 {USB_VPI(USB_VENDOR_SHANTOU, USB_PRODUCT_SHANTOU_DM9601, 0)}, 204 /* ShanTou ST268 USB NIC */ 205 {USB_VPI(USB_VENDOR_SHANTOU, USB_PRODUCT_SHANTOU_ST268, 0)}, 206 /* Corega USB-TXC */ 207 {USB_VPI(USB_VENDOR_COREGA, USB_PRODUCT_COREGA_FETHER_USB_TXC, 0)}, 208 /* ShanTou AMD8515 USB NIC */ 209 {USB_VPI(USB_VENDOR_SHANTOU, USB_PRODUCT_SHANTOU_ADM8515, 0)}, 210 /* Kontron AG USB Ethernet */ 211 {USB_VPI(USB_VENDOR_KONTRON, USB_PRODUCT_KONTRON_DM9601, 0)}, 212 {USB_VPI(USB_VENDOR_KONTRON, USB_PRODUCT_KONTRON_JP1082, 0)}, 213 }; 214 215 static void 216 udav_attach_post(struct usb_ether *ue) 217 { 218 struct udav_softc *sc = uether_getsc(ue); 219 220 /* reset the adapter */ 221 udav_reset(sc); 222 223 /* Get Ethernet Address */ 224 udav_csr_read(sc, UDAV_PAR, ue->ue_eaddr, ETHER_ADDR_LEN); 225 } 226 227 static int 228 udav_probe(device_t dev) 229 { 230 struct usb_attach_arg *uaa = device_get_ivars(dev); 231 232 if (uaa->usb_mode != USB_MODE_HOST) 233 return (ENXIO); 234 if (uaa->info.bConfigIndex != UDAV_CONFIG_INDEX) 235 return (ENXIO); 236 if (uaa->info.bIfaceIndex != UDAV_IFACE_INDEX) 237 return (ENXIO); 238 239 return (usbd_lookup_id_by_uaa(udav_devs, sizeof(udav_devs), uaa)); 240 } 241 242 static int 243 udav_attach(device_t dev) 244 { 245 struct usb_attach_arg *uaa = device_get_ivars(dev); 246 struct udav_softc *sc = device_get_softc(dev); 247 struct usb_ether *ue = &sc->sc_ue; 248 uint8_t iface_index; 249 int error; 250 251 sc->sc_flags = USB_GET_DRIVER_INFO(uaa); 252 253 device_set_usb_desc(dev); 254 255 mtx_init(&sc->sc_mtx, device_get_nameunit(dev), NULL, MTX_DEF); 256 257 iface_index = UDAV_IFACE_INDEX; 258 error = usbd_transfer_setup(uaa->device, &iface_index, 259 sc->sc_xfer, udav_config, UDAV_N_TRANSFER, sc, &sc->sc_mtx); 260 if (error) { 261 device_printf(dev, "allocating USB transfers failed\n"); 262 goto detach; 263 } 264 265 ue->ue_sc = sc; 266 ue->ue_dev = dev; 267 ue->ue_udev = uaa->device; 268 ue->ue_mtx = &sc->sc_mtx; 269 ue->ue_methods = &udav_ue_methods; 270 271 error = uether_ifattach(ue); 272 if (error) { 273 device_printf(dev, "could not attach interface\n"); 274 goto detach; 275 } 276 277 return (0); /* success */ 278 279 detach: 280 udav_detach(dev); 281 return (ENXIO); /* failure */ 282 } 283 284 static int 285 udav_detach(device_t dev) 286 { 287 struct udav_softc *sc = device_get_softc(dev); 288 struct usb_ether *ue = &sc->sc_ue; 289 290 usbd_transfer_unsetup(sc->sc_xfer, UDAV_N_TRANSFER); 291 uether_ifdetach(ue); 292 mtx_destroy(&sc->sc_mtx); 293 294 return (0); 295 } 296 297 #if 0 298 static int 299 udav_mem_read(struct udav_softc *sc, uint16_t offset, void *buf, 300 int len) 301 { 302 struct usb_device_request req; 303 304 len &= 0xff; 305 306 req.bmRequestType = UT_READ_VENDOR_DEVICE; 307 req.bRequest = UDAV_REQ_MEM_READ; 308 USETW(req.wValue, 0x0000); 309 USETW(req.wIndex, offset); 310 USETW(req.wLength, len); 311 312 return (uether_do_request(&sc->sc_ue, &req, buf, 1000)); 313 } 314 315 static int 316 udav_mem_write(struct udav_softc *sc, uint16_t offset, void *buf, 317 int len) 318 { 319 struct usb_device_request req; 320 321 len &= 0xff; 322 323 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 324 req.bRequest = UDAV_REQ_MEM_WRITE; 325 USETW(req.wValue, 0x0000); 326 USETW(req.wIndex, offset); 327 USETW(req.wLength, len); 328 329 return (uether_do_request(&sc->sc_ue, &req, buf, 1000)); 330 } 331 332 static int 333 udav_mem_write1(struct udav_softc *sc, uint16_t offset, 334 uint8_t ch) 335 { 336 struct usb_device_request req; 337 338 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 339 req.bRequest = UDAV_REQ_MEM_WRITE1; 340 USETW(req.wValue, ch); 341 USETW(req.wIndex, offset); 342 USETW(req.wLength, 0x0000); 343 344 return (uether_do_request(&sc->sc_ue, &req, NULL, 1000)); 345 } 346 #endif 347 348 static int 349 udav_csr_read(struct udav_softc *sc, uint16_t offset, void *buf, int len) 350 { 351 struct usb_device_request req; 352 353 len &= 0xff; 354 355 req.bmRequestType = UT_READ_VENDOR_DEVICE; 356 req.bRequest = UDAV_REQ_REG_READ; 357 USETW(req.wValue, 0x0000); 358 USETW(req.wIndex, offset); 359 USETW(req.wLength, len); 360 361 return (uether_do_request(&sc->sc_ue, &req, buf, 1000)); 362 } 363 364 static int 365 udav_csr_write(struct udav_softc *sc, uint16_t offset, void *buf, int len) 366 { 367 struct usb_device_request req; 368 369 offset &= 0xff; 370 len &= 0xff; 371 372 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 373 req.bRequest = UDAV_REQ_REG_WRITE; 374 USETW(req.wValue, 0x0000); 375 USETW(req.wIndex, offset); 376 USETW(req.wLength, len); 377 378 return (uether_do_request(&sc->sc_ue, &req, buf, 1000)); 379 } 380 381 static uint8_t 382 udav_csr_read1(struct udav_softc *sc, uint16_t offset) 383 { 384 uint8_t val; 385 386 udav_csr_read(sc, offset, &val, 1); 387 return (val); 388 } 389 390 static int 391 udav_csr_write1(struct udav_softc *sc, uint16_t offset, 392 uint8_t ch) 393 { 394 struct usb_device_request req; 395 396 offset &= 0xff; 397 398 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 399 req.bRequest = UDAV_REQ_REG_WRITE1; 400 USETW(req.wValue, ch); 401 USETW(req.wIndex, offset); 402 USETW(req.wLength, 0x0000); 403 404 return (uether_do_request(&sc->sc_ue, &req, NULL, 1000)); 405 } 406 407 static void 408 udav_init(struct usb_ether *ue) 409 { 410 struct udav_softc *sc = ue->ue_sc; 411 struct ifnet *ifp = uether_getifp(&sc->sc_ue); 412 413 UDAV_LOCK_ASSERT(sc, MA_OWNED); 414 415 /* 416 * Cancel pending I/O 417 */ 418 udav_stop(ue); 419 420 /* set MAC address */ 421 udav_csr_write(sc, UDAV_PAR, IF_LLADDR(ifp), ETHER_ADDR_LEN); 422 423 /* initialize network control register */ 424 425 /* disable loopback */ 426 UDAV_CLRBIT(sc, UDAV_NCR, UDAV_NCR_LBK0 | UDAV_NCR_LBK1); 427 428 /* Initialize RX control register */ 429 UDAV_SETBIT(sc, UDAV_RCR, UDAV_RCR_DIS_LONG | UDAV_RCR_DIS_CRC); 430 431 /* load multicast filter and update promiscious mode bit */ 432 udav_setpromisc(ue); 433 434 /* enable RX */ 435 UDAV_SETBIT(sc, UDAV_RCR, UDAV_RCR_RXEN); 436 437 /* clear POWER_DOWN state of internal PHY */ 438 UDAV_SETBIT(sc, UDAV_GPCR, UDAV_GPCR_GEP_CNTL0); 439 UDAV_CLRBIT(sc, UDAV_GPR, UDAV_GPR_GEPIO0); 440 441 usbd_xfer_set_stall(sc->sc_xfer[UDAV_BULK_DT_WR]); 442 443 ifp->if_drv_flags |= IFF_DRV_RUNNING; 444 udav_start(ue); 445 } 446 447 static void 448 udav_reset(struct udav_softc *sc) 449 { 450 int i; 451 452 /* Select PHY */ 453 #if 1 454 /* 455 * XXX: force select internal phy. 456 * external phy routines are not tested. 457 */ 458 UDAV_CLRBIT(sc, UDAV_NCR, UDAV_NCR_EXT_PHY); 459 #else 460 if (sc->sc_flags & UDAV_EXT_PHY) 461 UDAV_SETBIT(sc, UDAV_NCR, UDAV_NCR_EXT_PHY); 462 else 463 UDAV_CLRBIT(sc, UDAV_NCR, UDAV_NCR_EXT_PHY); 464 #endif 465 466 UDAV_SETBIT(sc, UDAV_NCR, UDAV_NCR_RST); 467 468 for (i = 0; i < UDAV_TX_TIMEOUT; i++) { 469 if (!(udav_csr_read1(sc, UDAV_NCR) & UDAV_NCR_RST)) 470 break; 471 if (uether_pause(&sc->sc_ue, hz / 100)) 472 break; 473 } 474 475 uether_pause(&sc->sc_ue, hz / 100); 476 } 477 478 #define UDAV_BITS 6 479 static void 480 udav_setmulti(struct usb_ether *ue) 481 { 482 struct udav_softc *sc = ue->ue_sc; 483 struct ifnet *ifp = uether_getifp(&sc->sc_ue); 484 struct ifmultiaddr *ifma; 485 uint8_t hashtbl[8] = { 0, 0, 0, 0, 0, 0, 0, 0 }; 486 int h = 0; 487 488 UDAV_LOCK_ASSERT(sc, MA_OWNED); 489 490 if (ifp->if_flags & IFF_ALLMULTI || ifp->if_flags & IFF_PROMISC) { 491 UDAV_SETBIT(sc, UDAV_RCR, UDAV_RCR_ALL|UDAV_RCR_PRMSC); 492 return; 493 } 494 495 /* first, zot all the existing hash bits */ 496 memset(hashtbl, 0x00, sizeof(hashtbl)); 497 hashtbl[7] |= 0x80; /* broadcast address */ 498 udav_csr_write(sc, UDAV_MAR, hashtbl, sizeof(hashtbl)); 499 500 /* now program new ones */ 501 if_maddr_rlock(ifp); 502 TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) 503 { 504 if (ifma->ifma_addr->sa_family != AF_LINK) 505 continue; 506 h = ether_crc32_be(LLADDR((struct sockaddr_dl *) 507 ifma->ifma_addr), ETHER_ADDR_LEN) >> 26; 508 hashtbl[h / 8] |= 1 << (h % 8); 509 } 510 if_maddr_runlock(ifp); 511 512 /* disable all multicast */ 513 UDAV_CLRBIT(sc, UDAV_RCR, UDAV_RCR_ALL); 514 515 /* write hash value to the register */ 516 udav_csr_write(sc, UDAV_MAR, hashtbl, sizeof(hashtbl)); 517 } 518 519 static void 520 udav_setpromisc(struct usb_ether *ue) 521 { 522 struct udav_softc *sc = ue->ue_sc; 523 struct ifnet *ifp = uether_getifp(&sc->sc_ue); 524 uint8_t rxmode; 525 526 rxmode = udav_csr_read1(sc, UDAV_RCR); 527 rxmode &= ~(UDAV_RCR_ALL | UDAV_RCR_PRMSC); 528 529 if (ifp->if_flags & IFF_PROMISC) 530 rxmode |= UDAV_RCR_ALL | UDAV_RCR_PRMSC; 531 else if (ifp->if_flags & IFF_ALLMULTI) 532 rxmode |= UDAV_RCR_ALL; 533 534 /* write new mode bits */ 535 udav_csr_write1(sc, UDAV_RCR, rxmode); 536 } 537 538 static void 539 udav_start(struct usb_ether *ue) 540 { 541 struct udav_softc *sc = ue->ue_sc; 542 543 /* 544 * start the USB transfers, if not already started: 545 */ 546 usbd_transfer_start(sc->sc_xfer[UDAV_INTR_DT_RD]); 547 usbd_transfer_start(sc->sc_xfer[UDAV_BULK_DT_RD]); 548 usbd_transfer_start(sc->sc_xfer[UDAV_BULK_DT_WR]); 549 } 550 551 static void 552 udav_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error) 553 { 554 struct udav_softc *sc = usbd_xfer_softc(xfer); 555 struct ifnet *ifp = uether_getifp(&sc->sc_ue); 556 struct usb_page_cache *pc; 557 struct mbuf *m; 558 int extra_len; 559 int temp_len; 560 uint8_t buf[2]; 561 562 switch (USB_GET_STATE(xfer)) { 563 case USB_ST_TRANSFERRED: 564 DPRINTFN(11, "transfer complete\n"); 565 ifp->if_opackets++; 566 567 /* FALLTHROUGH */ 568 case USB_ST_SETUP: 569 tr_setup: 570 if ((sc->sc_flags & UDAV_FLAG_LINK) == 0) { 571 /* 572 * don't send anything if there is no link ! 573 */ 574 return; 575 } 576 IFQ_DRV_DEQUEUE(&ifp->if_snd, m); 577 578 if (m == NULL) 579 return; 580 if (m->m_pkthdr.len > MCLBYTES) 581 m->m_pkthdr.len = MCLBYTES; 582 if (m->m_pkthdr.len < UDAV_MIN_FRAME_LEN) { 583 extra_len = UDAV_MIN_FRAME_LEN - m->m_pkthdr.len; 584 } else { 585 extra_len = 0; 586 } 587 588 temp_len = (m->m_pkthdr.len + extra_len); 589 590 /* 591 * the frame length is specified in the first 2 bytes of the 592 * buffer 593 */ 594 buf[0] = (uint8_t)(temp_len); 595 buf[1] = (uint8_t)(temp_len >> 8); 596 597 temp_len += 2; 598 599 pc = usbd_xfer_get_frame(xfer, 0); 600 usbd_copy_in(pc, 0, buf, 2); 601 usbd_m_copy_in(pc, 2, m, 0, m->m_pkthdr.len); 602 603 if (extra_len) 604 usbd_frame_zero(pc, temp_len - extra_len, extra_len); 605 /* 606 * if there's a BPF listener, bounce a copy 607 * of this frame to him: 608 */ 609 BPF_MTAP(ifp, m); 610 611 m_freem(m); 612 613 usbd_xfer_set_frame_len(xfer, 0, temp_len); 614 usbd_transfer_submit(xfer); 615 return; 616 617 default: /* Error */ 618 DPRINTFN(11, "transfer error, %s\n", 619 usbd_errstr(error)); 620 621 ifp->if_oerrors++; 622 623 if (error != USB_ERR_CANCELLED) { 624 /* try to clear stall first */ 625 usbd_xfer_set_stall(xfer); 626 goto tr_setup; 627 } 628 return; 629 } 630 } 631 632 static void 633 udav_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error) 634 { 635 struct udav_softc *sc = usbd_xfer_softc(xfer); 636 struct usb_ether *ue = &sc->sc_ue; 637 struct ifnet *ifp = uether_getifp(ue); 638 struct usb_page_cache *pc; 639 struct udav_rxpkt stat; 640 int len; 641 int actlen; 642 643 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL); 644 645 switch (USB_GET_STATE(xfer)) { 646 case USB_ST_TRANSFERRED: 647 648 if (actlen < sizeof(stat) + ETHER_CRC_LEN) { 649 ifp->if_ierrors++; 650 goto tr_setup; 651 } 652 pc = usbd_xfer_get_frame(xfer, 0); 653 usbd_copy_out(pc, 0, &stat, sizeof(stat)); 654 actlen -= sizeof(stat); 655 len = min(actlen, le16toh(stat.pktlen)); 656 len -= ETHER_CRC_LEN; 657 658 if (stat.rxstat & UDAV_RSR_LCS) { 659 ifp->if_collisions++; 660 goto tr_setup; 661 } 662 if (stat.rxstat & UDAV_RSR_ERR) { 663 ifp->if_ierrors++; 664 goto tr_setup; 665 } 666 uether_rxbuf(ue, pc, sizeof(stat), len); 667 /* FALLTHROUGH */ 668 case USB_ST_SETUP: 669 tr_setup: 670 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 671 usbd_transfer_submit(xfer); 672 uether_rxflush(ue); 673 return; 674 675 default: /* Error */ 676 DPRINTF("bulk read error, %s\n", 677 usbd_errstr(error)); 678 679 if (error != USB_ERR_CANCELLED) { 680 /* try to clear stall first */ 681 usbd_xfer_set_stall(xfer); 682 goto tr_setup; 683 } 684 return; 685 } 686 } 687 688 static void 689 udav_intr_callback(struct usb_xfer *xfer, usb_error_t error) 690 { 691 switch (USB_GET_STATE(xfer)) { 692 case USB_ST_TRANSFERRED: 693 case USB_ST_SETUP: 694 tr_setup: 695 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 696 usbd_transfer_submit(xfer); 697 return; 698 699 default: /* Error */ 700 if (error != USB_ERR_CANCELLED) { 701 /* try to clear stall first */ 702 usbd_xfer_set_stall(xfer); 703 goto tr_setup; 704 } 705 return; 706 } 707 } 708 709 static void 710 udav_stop(struct usb_ether *ue) 711 { 712 struct udav_softc *sc = ue->ue_sc; 713 struct ifnet *ifp = uether_getifp(&sc->sc_ue); 714 715 UDAV_LOCK_ASSERT(sc, MA_OWNED); 716 717 ifp->if_drv_flags &= ~IFF_DRV_RUNNING; 718 sc->sc_flags &= ~UDAV_FLAG_LINK; 719 720 /* 721 * stop all the transfers, if not already stopped: 722 */ 723 usbd_transfer_stop(sc->sc_xfer[UDAV_BULK_DT_WR]); 724 usbd_transfer_stop(sc->sc_xfer[UDAV_BULK_DT_RD]); 725 usbd_transfer_stop(sc->sc_xfer[UDAV_INTR_DT_RD]); 726 727 udav_reset(sc); 728 } 729 730 static int 731 udav_ifmedia_upd(struct ifnet *ifp) 732 { 733 struct udav_softc *sc = ifp->if_softc; 734 struct mii_data *mii = GET_MII(sc); 735 struct mii_softc *miisc; 736 737 UDAV_LOCK_ASSERT(sc, MA_OWNED); 738 739 sc->sc_flags &= ~UDAV_FLAG_LINK; 740 LIST_FOREACH(miisc, &mii->mii_phys, mii_list) 741 PHY_RESET(miisc); 742 mii_mediachg(mii); 743 return (0); 744 } 745 746 static void 747 udav_ifmedia_status(struct ifnet *ifp, struct ifmediareq *ifmr) 748 { 749 struct udav_softc *sc = ifp->if_softc; 750 struct mii_data *mii = GET_MII(sc); 751 752 UDAV_LOCK(sc); 753 mii_pollstat(mii); 754 ifmr->ifm_active = mii->mii_media_active; 755 ifmr->ifm_status = mii->mii_media_status; 756 UDAV_UNLOCK(sc); 757 } 758 759 static void 760 udav_tick(struct usb_ether *ue) 761 { 762 struct udav_softc *sc = ue->ue_sc; 763 struct mii_data *mii = GET_MII(sc); 764 765 UDAV_LOCK_ASSERT(sc, MA_OWNED); 766 767 mii_tick(mii); 768 if ((sc->sc_flags & UDAV_FLAG_LINK) == 0 769 && mii->mii_media_status & IFM_ACTIVE && 770 IFM_SUBTYPE(mii->mii_media_active) != IFM_NONE) { 771 sc->sc_flags |= UDAV_FLAG_LINK; 772 udav_start(ue); 773 } 774 } 775 776 static int 777 udav_miibus_readreg(device_t dev, int phy, int reg) 778 { 779 struct udav_softc *sc = device_get_softc(dev); 780 uint16_t data16; 781 uint8_t val[2]; 782 int locked; 783 784 /* XXX: one PHY only for the internal PHY */ 785 if (phy != 0) 786 return (0); 787 788 locked = mtx_owned(&sc->sc_mtx); 789 if (!locked) 790 UDAV_LOCK(sc); 791 792 /* select internal PHY and set PHY register address */ 793 udav_csr_write1(sc, UDAV_EPAR, 794 UDAV_EPAR_PHY_ADR0 | (reg & UDAV_EPAR_EROA_MASK)); 795 796 /* select PHY operation and start read command */ 797 udav_csr_write1(sc, UDAV_EPCR, UDAV_EPCR_EPOS | UDAV_EPCR_ERPRR); 798 799 /* XXX: should we wait? */ 800 801 /* end read command */ 802 UDAV_CLRBIT(sc, UDAV_EPCR, UDAV_EPCR_ERPRR); 803 804 /* retrieve the result from data registers */ 805 udav_csr_read(sc, UDAV_EPDRL, val, 2); 806 807 data16 = (val[0] | (val[1] << 8)); 808 809 DPRINTFN(11, "phy=%d reg=0x%04x => 0x%04x\n", 810 phy, reg, data16); 811 812 if (!locked) 813 UDAV_UNLOCK(sc); 814 return (data16); 815 } 816 817 static int 818 udav_miibus_writereg(device_t dev, int phy, int reg, int data) 819 { 820 struct udav_softc *sc = device_get_softc(dev); 821 uint8_t val[2]; 822 int locked; 823 824 /* XXX: one PHY only for the internal PHY */ 825 if (phy != 0) 826 return (0); 827 828 locked = mtx_owned(&sc->sc_mtx); 829 if (!locked) 830 UDAV_LOCK(sc); 831 832 /* select internal PHY and set PHY register address */ 833 udav_csr_write1(sc, UDAV_EPAR, 834 UDAV_EPAR_PHY_ADR0 | (reg & UDAV_EPAR_EROA_MASK)); 835 836 /* put the value to the data registers */ 837 val[0] = (data & 0xff); 838 val[1] = (data >> 8) & 0xff; 839 udav_csr_write(sc, UDAV_EPDRL, val, 2); 840 841 /* select PHY operation and start write command */ 842 udav_csr_write1(sc, UDAV_EPCR, UDAV_EPCR_EPOS | UDAV_EPCR_ERPRW); 843 844 /* XXX: should we wait? */ 845 846 /* end write command */ 847 UDAV_CLRBIT(sc, UDAV_EPCR, UDAV_EPCR_ERPRW); 848 849 if (!locked) 850 UDAV_UNLOCK(sc); 851 return (0); 852 } 853 854 static void 855 udav_miibus_statchg(device_t dev) 856 { 857 /* nothing to do */ 858 } 859