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 DEVMETHOD(bus_driver_added, bus_generic_driver_added), 151 152 /* MII interface */ 153 DEVMETHOD(miibus_readreg, udav_miibus_readreg), 154 DEVMETHOD(miibus_writereg, udav_miibus_writereg), 155 DEVMETHOD(miibus_statchg, udav_miibus_statchg), 156 157 {0, 0} 158 }; 159 160 static driver_t udav_driver = { 161 .name = "udav", 162 .methods = udav_methods, 163 .size = sizeof(struct udav_softc), 164 }; 165 166 static devclass_t udav_devclass; 167 168 DRIVER_MODULE(udav, uhub, udav_driver, udav_devclass, NULL, 0); 169 DRIVER_MODULE(miibus, udav, miibus_driver, miibus_devclass, 0, 0); 170 MODULE_DEPEND(udav, uether, 1, 1, 1); 171 MODULE_DEPEND(udav, usb, 1, 1, 1); 172 MODULE_DEPEND(udav, ether, 1, 1, 1); 173 MODULE_DEPEND(udav, miibus, 1, 1, 1); 174 MODULE_VERSION(udav, 1); 175 176 static const struct usb_ether_methods udav_ue_methods = { 177 .ue_attach_post = udav_attach_post, 178 .ue_start = udav_start, 179 .ue_init = udav_init, 180 .ue_stop = udav_stop, 181 .ue_tick = udav_tick, 182 .ue_setmulti = udav_setmulti, 183 .ue_setpromisc = udav_setpromisc, 184 .ue_mii_upd = udav_ifmedia_upd, 185 .ue_mii_sts = udav_ifmedia_status, 186 }; 187 188 #ifdef USB_DEBUG 189 static int udav_debug = 0; 190 191 SYSCTL_NODE(_hw_usb, OID_AUTO, udav, CTLFLAG_RW, 0, "USB udav"); 192 SYSCTL_INT(_hw_usb_udav, OID_AUTO, debug, CTLFLAG_RW, &udav_debug, 0, 193 "Debug level"); 194 #endif 195 196 #define UDAV_SETBIT(sc, reg, x) \ 197 udav_csr_write1(sc, reg, udav_csr_read1(sc, reg) | (x)) 198 199 #define UDAV_CLRBIT(sc, reg, x) \ 200 udav_csr_write1(sc, reg, udav_csr_read1(sc, reg) & ~(x)) 201 202 static const STRUCT_USB_HOST_ID udav_devs[] = { 203 /* ShanTou DM9601 USB NIC */ 204 {USB_VPI(USB_VENDOR_SHANTOU, USB_PRODUCT_SHANTOU_DM9601, 0)}, 205 /* ShanTou ST268 USB NIC */ 206 {USB_VPI(USB_VENDOR_SHANTOU, USB_PRODUCT_SHANTOU_ST268, 0)}, 207 /* Corega USB-TXC */ 208 {USB_VPI(USB_VENDOR_COREGA, USB_PRODUCT_COREGA_FETHER_USB_TXC, 0)}, 209 /* ShanTou AMD8515 USB NIC */ 210 {USB_VPI(USB_VENDOR_SHANTOU, USB_PRODUCT_SHANTOU_ADM8515, 0)}, 211 /* Kontron AG USB Ethernet */ 212 {USB_VPI(USB_VENDOR_KONTRON, USB_PRODUCT_KONTRON_DM9601, 0)}, 213 {USB_VPI(USB_VENDOR_KONTRON, USB_PRODUCT_KONTRON_JP1082, 0)}, 214 }; 215 216 static void 217 udav_attach_post(struct usb_ether *ue) 218 { 219 struct udav_softc *sc = uether_getsc(ue); 220 221 /* reset the adapter */ 222 udav_reset(sc); 223 224 /* Get Ethernet Address */ 225 udav_csr_read(sc, UDAV_PAR, ue->ue_eaddr, ETHER_ADDR_LEN); 226 } 227 228 static int 229 udav_probe(device_t dev) 230 { 231 struct usb_attach_arg *uaa = device_get_ivars(dev); 232 233 if (uaa->usb_mode != USB_MODE_HOST) 234 return (ENXIO); 235 if (uaa->info.bConfigIndex != UDAV_CONFIG_INDEX) 236 return (ENXIO); 237 if (uaa->info.bIfaceIndex != UDAV_IFACE_INDEX) 238 return (ENXIO); 239 240 return (usbd_lookup_id_by_uaa(udav_devs, sizeof(udav_devs), uaa)); 241 } 242 243 static int 244 udav_attach(device_t dev) 245 { 246 struct usb_attach_arg *uaa = device_get_ivars(dev); 247 struct udav_softc *sc = device_get_softc(dev); 248 struct usb_ether *ue = &sc->sc_ue; 249 uint8_t iface_index; 250 int error; 251 252 sc->sc_flags = USB_GET_DRIVER_INFO(uaa); 253 254 device_set_usb_desc(dev); 255 256 mtx_init(&sc->sc_mtx, device_get_nameunit(dev), NULL, MTX_DEF); 257 258 iface_index = UDAV_IFACE_INDEX; 259 error = usbd_transfer_setup(uaa->device, &iface_index, 260 sc->sc_xfer, udav_config, UDAV_N_TRANSFER, sc, &sc->sc_mtx); 261 if (error) { 262 device_printf(dev, "allocating USB transfers failed\n"); 263 goto detach; 264 } 265 266 ue->ue_sc = sc; 267 ue->ue_dev = dev; 268 ue->ue_udev = uaa->device; 269 ue->ue_mtx = &sc->sc_mtx; 270 ue->ue_methods = &udav_ue_methods; 271 272 error = uether_ifattach(ue); 273 if (error) { 274 device_printf(dev, "could not attach interface\n"); 275 goto detach; 276 } 277 278 return (0); /* success */ 279 280 detach: 281 udav_detach(dev); 282 return (ENXIO); /* failure */ 283 } 284 285 static int 286 udav_detach(device_t dev) 287 { 288 struct udav_softc *sc = device_get_softc(dev); 289 struct usb_ether *ue = &sc->sc_ue; 290 291 usbd_transfer_unsetup(sc->sc_xfer, UDAV_N_TRANSFER); 292 uether_ifdetach(ue); 293 mtx_destroy(&sc->sc_mtx); 294 295 return (0); 296 } 297 298 #if 0 299 static int 300 udav_mem_read(struct udav_softc *sc, uint16_t offset, void *buf, 301 int len) 302 { 303 struct usb_device_request req; 304 305 len &= 0xff; 306 307 req.bmRequestType = UT_READ_VENDOR_DEVICE; 308 req.bRequest = UDAV_REQ_MEM_READ; 309 USETW(req.wValue, 0x0000); 310 USETW(req.wIndex, offset); 311 USETW(req.wLength, len); 312 313 return (uether_do_request(&sc->sc_ue, &req, buf, 1000)); 314 } 315 316 static int 317 udav_mem_write(struct udav_softc *sc, uint16_t offset, void *buf, 318 int len) 319 { 320 struct usb_device_request req; 321 322 len &= 0xff; 323 324 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 325 req.bRequest = UDAV_REQ_MEM_WRITE; 326 USETW(req.wValue, 0x0000); 327 USETW(req.wIndex, offset); 328 USETW(req.wLength, len); 329 330 return (uether_do_request(&sc->sc_ue, &req, buf, 1000)); 331 } 332 333 static int 334 udav_mem_write1(struct udav_softc *sc, uint16_t offset, 335 uint8_t ch) 336 { 337 struct usb_device_request req; 338 339 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 340 req.bRequest = UDAV_REQ_MEM_WRITE1; 341 USETW(req.wValue, ch); 342 USETW(req.wIndex, offset); 343 USETW(req.wLength, 0x0000); 344 345 return (uether_do_request(&sc->sc_ue, &req, NULL, 1000)); 346 } 347 #endif 348 349 static int 350 udav_csr_read(struct udav_softc *sc, uint16_t offset, void *buf, int len) 351 { 352 struct usb_device_request req; 353 354 len &= 0xff; 355 356 req.bmRequestType = UT_READ_VENDOR_DEVICE; 357 req.bRequest = UDAV_REQ_REG_READ; 358 USETW(req.wValue, 0x0000); 359 USETW(req.wIndex, offset); 360 USETW(req.wLength, len); 361 362 return (uether_do_request(&sc->sc_ue, &req, buf, 1000)); 363 } 364 365 static int 366 udav_csr_write(struct udav_softc *sc, uint16_t offset, void *buf, int len) 367 { 368 struct usb_device_request req; 369 370 offset &= 0xff; 371 len &= 0xff; 372 373 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 374 req.bRequest = UDAV_REQ_REG_WRITE; 375 USETW(req.wValue, 0x0000); 376 USETW(req.wIndex, offset); 377 USETW(req.wLength, len); 378 379 return (uether_do_request(&sc->sc_ue, &req, buf, 1000)); 380 } 381 382 static uint8_t 383 udav_csr_read1(struct udav_softc *sc, uint16_t offset) 384 { 385 uint8_t val; 386 387 udav_csr_read(sc, offset, &val, 1); 388 return (val); 389 } 390 391 static int 392 udav_csr_write1(struct udav_softc *sc, uint16_t offset, 393 uint8_t ch) 394 { 395 struct usb_device_request req; 396 397 offset &= 0xff; 398 399 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 400 req.bRequest = UDAV_REQ_REG_WRITE1; 401 USETW(req.wValue, ch); 402 USETW(req.wIndex, offset); 403 USETW(req.wLength, 0x0000); 404 405 return (uether_do_request(&sc->sc_ue, &req, NULL, 1000)); 406 } 407 408 static void 409 udav_init(struct usb_ether *ue) 410 { 411 struct udav_softc *sc = ue->ue_sc; 412 struct ifnet *ifp = uether_getifp(&sc->sc_ue); 413 414 UDAV_LOCK_ASSERT(sc, MA_OWNED); 415 416 /* 417 * Cancel pending I/O 418 */ 419 udav_stop(ue); 420 421 /* set MAC address */ 422 udav_csr_write(sc, UDAV_PAR, IF_LLADDR(ifp), ETHER_ADDR_LEN); 423 424 /* initialize network control register */ 425 426 /* disable loopback */ 427 UDAV_CLRBIT(sc, UDAV_NCR, UDAV_NCR_LBK0 | UDAV_NCR_LBK1); 428 429 /* Initialize RX control register */ 430 UDAV_SETBIT(sc, UDAV_RCR, UDAV_RCR_DIS_LONG | UDAV_RCR_DIS_CRC); 431 432 /* load multicast filter and update promiscious mode bit */ 433 udav_setpromisc(ue); 434 435 /* enable RX */ 436 UDAV_SETBIT(sc, UDAV_RCR, UDAV_RCR_RXEN); 437 438 /* clear POWER_DOWN state of internal PHY */ 439 UDAV_SETBIT(sc, UDAV_GPCR, UDAV_GPCR_GEP_CNTL0); 440 UDAV_CLRBIT(sc, UDAV_GPR, UDAV_GPR_GEPIO0); 441 442 usbd_xfer_set_stall(sc->sc_xfer[UDAV_BULK_DT_WR]); 443 444 ifp->if_drv_flags |= IFF_DRV_RUNNING; 445 udav_start(ue); 446 } 447 448 static void 449 udav_reset(struct udav_softc *sc) 450 { 451 int i; 452 453 /* Select PHY */ 454 #if 1 455 /* 456 * XXX: force select internal phy. 457 * external phy routines are not tested. 458 */ 459 UDAV_CLRBIT(sc, UDAV_NCR, UDAV_NCR_EXT_PHY); 460 #else 461 if (sc->sc_flags & UDAV_EXT_PHY) 462 UDAV_SETBIT(sc, UDAV_NCR, UDAV_NCR_EXT_PHY); 463 else 464 UDAV_CLRBIT(sc, UDAV_NCR, UDAV_NCR_EXT_PHY); 465 #endif 466 467 UDAV_SETBIT(sc, UDAV_NCR, UDAV_NCR_RST); 468 469 for (i = 0; i < UDAV_TX_TIMEOUT; i++) { 470 if (!(udav_csr_read1(sc, UDAV_NCR) & UDAV_NCR_RST)) 471 break; 472 if (uether_pause(&sc->sc_ue, hz / 100)) 473 break; 474 } 475 476 uether_pause(&sc->sc_ue, hz / 100); 477 } 478 479 #define UDAV_BITS 6 480 static void 481 udav_setmulti(struct usb_ether *ue) 482 { 483 struct udav_softc *sc = ue->ue_sc; 484 struct ifnet *ifp = uether_getifp(&sc->sc_ue); 485 struct ifmultiaddr *ifma; 486 uint8_t hashtbl[8] = { 0, 0, 0, 0, 0, 0, 0, 0 }; 487 int h = 0; 488 489 UDAV_LOCK_ASSERT(sc, MA_OWNED); 490 491 if (ifp->if_flags & IFF_ALLMULTI || ifp->if_flags & IFF_PROMISC) { 492 UDAV_SETBIT(sc, UDAV_RCR, UDAV_RCR_ALL|UDAV_RCR_PRMSC); 493 return; 494 } 495 496 /* first, zot all the existing hash bits */ 497 memset(hashtbl, 0x00, sizeof(hashtbl)); 498 hashtbl[7] |= 0x80; /* broadcast address */ 499 udav_csr_write(sc, UDAV_MAR, hashtbl, sizeof(hashtbl)); 500 501 /* now program new ones */ 502 if_maddr_rlock(ifp); 503 TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) 504 { 505 if (ifma->ifma_addr->sa_family != AF_LINK) 506 continue; 507 h = ether_crc32_be(LLADDR((struct sockaddr_dl *) 508 ifma->ifma_addr), ETHER_ADDR_LEN) >> 26; 509 hashtbl[h / 8] |= 1 << (h % 8); 510 } 511 if_maddr_runlock(ifp); 512 513 /* disable all multicast */ 514 UDAV_CLRBIT(sc, UDAV_RCR, UDAV_RCR_ALL); 515 516 /* write hash value to the register */ 517 udav_csr_write(sc, UDAV_MAR, hashtbl, sizeof(hashtbl)); 518 } 519 520 static void 521 udav_setpromisc(struct usb_ether *ue) 522 { 523 struct udav_softc *sc = ue->ue_sc; 524 struct ifnet *ifp = uether_getifp(&sc->sc_ue); 525 uint8_t rxmode; 526 527 rxmode = udav_csr_read1(sc, UDAV_RCR); 528 rxmode &= ~(UDAV_RCR_ALL | UDAV_RCR_PRMSC); 529 530 if (ifp->if_flags & IFF_PROMISC) 531 rxmode |= UDAV_RCR_ALL | UDAV_RCR_PRMSC; 532 else if (ifp->if_flags & IFF_ALLMULTI) 533 rxmode |= UDAV_RCR_ALL; 534 535 /* write new mode bits */ 536 udav_csr_write1(sc, UDAV_RCR, rxmode); 537 } 538 539 static void 540 udav_start(struct usb_ether *ue) 541 { 542 struct udav_softc *sc = ue->ue_sc; 543 544 /* 545 * start the USB transfers, if not already started: 546 */ 547 usbd_transfer_start(sc->sc_xfer[UDAV_INTR_DT_RD]); 548 usbd_transfer_start(sc->sc_xfer[UDAV_BULK_DT_RD]); 549 usbd_transfer_start(sc->sc_xfer[UDAV_BULK_DT_WR]); 550 } 551 552 static void 553 udav_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error) 554 { 555 struct udav_softc *sc = usbd_xfer_softc(xfer); 556 struct ifnet *ifp = uether_getifp(&sc->sc_ue); 557 struct usb_page_cache *pc; 558 struct mbuf *m; 559 int extra_len; 560 int temp_len; 561 uint8_t buf[2]; 562 563 switch (USB_GET_STATE(xfer)) { 564 case USB_ST_TRANSFERRED: 565 DPRINTFN(11, "transfer complete\n"); 566 ifp->if_opackets++; 567 568 /* FALLTHROUGH */ 569 case USB_ST_SETUP: 570 tr_setup: 571 if ((sc->sc_flags & UDAV_FLAG_LINK) == 0) { 572 /* 573 * don't send anything if there is no link ! 574 */ 575 return; 576 } 577 IFQ_DRV_DEQUEUE(&ifp->if_snd, m); 578 579 if (m == NULL) 580 return; 581 if (m->m_pkthdr.len > MCLBYTES) 582 m->m_pkthdr.len = MCLBYTES; 583 if (m->m_pkthdr.len < UDAV_MIN_FRAME_LEN) { 584 extra_len = UDAV_MIN_FRAME_LEN - m->m_pkthdr.len; 585 } else { 586 extra_len = 0; 587 } 588 589 temp_len = (m->m_pkthdr.len + extra_len); 590 591 /* 592 * the frame length is specified in the first 2 bytes of the 593 * buffer 594 */ 595 buf[0] = (uint8_t)(temp_len); 596 buf[1] = (uint8_t)(temp_len >> 8); 597 598 temp_len += 2; 599 600 pc = usbd_xfer_get_frame(xfer, 0); 601 usbd_copy_in(pc, 0, buf, 2); 602 usbd_m_copy_in(pc, 2, m, 0, m->m_pkthdr.len); 603 604 if (extra_len) 605 usbd_frame_zero(pc, temp_len - extra_len, extra_len); 606 /* 607 * if there's a BPF listener, bounce a copy 608 * of this frame to him: 609 */ 610 BPF_MTAP(ifp, m); 611 612 m_freem(m); 613 614 usbd_xfer_set_frame_len(xfer, 0, temp_len); 615 usbd_transfer_submit(xfer); 616 return; 617 618 default: /* Error */ 619 DPRINTFN(11, "transfer error, %s\n", 620 usbd_errstr(error)); 621 622 ifp->if_oerrors++; 623 624 if (error != USB_ERR_CANCELLED) { 625 /* try to clear stall first */ 626 usbd_xfer_set_stall(xfer); 627 goto tr_setup; 628 } 629 return; 630 } 631 } 632 633 static void 634 udav_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error) 635 { 636 struct udav_softc *sc = usbd_xfer_softc(xfer); 637 struct usb_ether *ue = &sc->sc_ue; 638 struct ifnet *ifp = uether_getifp(ue); 639 struct usb_page_cache *pc; 640 struct udav_rxpkt stat; 641 int len; 642 int actlen; 643 644 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL); 645 646 switch (USB_GET_STATE(xfer)) { 647 case USB_ST_TRANSFERRED: 648 649 if (actlen < sizeof(stat) + ETHER_CRC_LEN) { 650 ifp->if_ierrors++; 651 goto tr_setup; 652 } 653 pc = usbd_xfer_get_frame(xfer, 0); 654 usbd_copy_out(pc, 0, &stat, sizeof(stat)); 655 actlen -= sizeof(stat); 656 len = min(actlen, le16toh(stat.pktlen)); 657 len -= ETHER_CRC_LEN; 658 659 if (stat.rxstat & UDAV_RSR_LCS) { 660 ifp->if_collisions++; 661 goto tr_setup; 662 } 663 if (stat.rxstat & UDAV_RSR_ERR) { 664 ifp->if_ierrors++; 665 goto tr_setup; 666 } 667 uether_rxbuf(ue, pc, sizeof(stat), len); 668 /* FALLTHROUGH */ 669 case USB_ST_SETUP: 670 tr_setup: 671 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 672 usbd_transfer_submit(xfer); 673 uether_rxflush(ue); 674 return; 675 676 default: /* Error */ 677 DPRINTF("bulk read error, %s\n", 678 usbd_errstr(error)); 679 680 if (error != USB_ERR_CANCELLED) { 681 /* try to clear stall first */ 682 usbd_xfer_set_stall(xfer); 683 goto tr_setup; 684 } 685 return; 686 } 687 } 688 689 static void 690 udav_intr_callback(struct usb_xfer *xfer, usb_error_t error) 691 { 692 switch (USB_GET_STATE(xfer)) { 693 case USB_ST_TRANSFERRED: 694 case USB_ST_SETUP: 695 tr_setup: 696 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 697 usbd_transfer_submit(xfer); 698 return; 699 700 default: /* Error */ 701 if (error != USB_ERR_CANCELLED) { 702 /* try to clear stall first */ 703 usbd_xfer_set_stall(xfer); 704 goto tr_setup; 705 } 706 return; 707 } 708 } 709 710 static void 711 udav_stop(struct usb_ether *ue) 712 { 713 struct udav_softc *sc = ue->ue_sc; 714 struct ifnet *ifp = uether_getifp(&sc->sc_ue); 715 716 UDAV_LOCK_ASSERT(sc, MA_OWNED); 717 718 ifp->if_drv_flags &= ~IFF_DRV_RUNNING; 719 sc->sc_flags &= ~UDAV_FLAG_LINK; 720 721 /* 722 * stop all the transfers, if not already stopped: 723 */ 724 usbd_transfer_stop(sc->sc_xfer[UDAV_BULK_DT_WR]); 725 usbd_transfer_stop(sc->sc_xfer[UDAV_BULK_DT_RD]); 726 usbd_transfer_stop(sc->sc_xfer[UDAV_INTR_DT_RD]); 727 728 udav_reset(sc); 729 } 730 731 static int 732 udav_ifmedia_upd(struct ifnet *ifp) 733 { 734 struct udav_softc *sc = ifp->if_softc; 735 struct mii_data *mii = GET_MII(sc); 736 struct mii_softc *miisc; 737 738 UDAV_LOCK_ASSERT(sc, MA_OWNED); 739 740 sc->sc_flags &= ~UDAV_FLAG_LINK; 741 LIST_FOREACH(miisc, &mii->mii_phys, mii_list) 742 PHY_RESET(miisc); 743 mii_mediachg(mii); 744 return (0); 745 } 746 747 static void 748 udav_ifmedia_status(struct ifnet *ifp, struct ifmediareq *ifmr) 749 { 750 struct udav_softc *sc = ifp->if_softc; 751 struct mii_data *mii = GET_MII(sc); 752 753 UDAV_LOCK(sc); 754 mii_pollstat(mii); 755 UDAV_UNLOCK(sc); 756 ifmr->ifm_active = mii->mii_media_active; 757 ifmr->ifm_status = mii->mii_media_status; 758 } 759 760 static void 761 udav_tick(struct usb_ether *ue) 762 { 763 struct udav_softc *sc = ue->ue_sc; 764 struct mii_data *mii = GET_MII(sc); 765 766 UDAV_LOCK_ASSERT(sc, MA_OWNED); 767 768 mii_tick(mii); 769 if ((sc->sc_flags & UDAV_FLAG_LINK) == 0 770 && mii->mii_media_status & IFM_ACTIVE && 771 IFM_SUBTYPE(mii->mii_media_active) != IFM_NONE) { 772 sc->sc_flags |= UDAV_FLAG_LINK; 773 udav_start(ue); 774 } 775 } 776 777 static int 778 udav_miibus_readreg(device_t dev, int phy, int reg) 779 { 780 struct udav_softc *sc = device_get_softc(dev); 781 uint16_t data16; 782 uint8_t val[2]; 783 int locked; 784 785 /* XXX: one PHY only for the internal PHY */ 786 if (phy != 0) 787 return (0); 788 789 locked = mtx_owned(&sc->sc_mtx); 790 if (!locked) 791 UDAV_LOCK(sc); 792 793 /* select internal PHY and set PHY register address */ 794 udav_csr_write1(sc, UDAV_EPAR, 795 UDAV_EPAR_PHY_ADR0 | (reg & UDAV_EPAR_EROA_MASK)); 796 797 /* select PHY operation and start read command */ 798 udav_csr_write1(sc, UDAV_EPCR, UDAV_EPCR_EPOS | UDAV_EPCR_ERPRR); 799 800 /* XXX: should we wait? */ 801 802 /* end read command */ 803 UDAV_CLRBIT(sc, UDAV_EPCR, UDAV_EPCR_ERPRR); 804 805 /* retrieve the result from data registers */ 806 udav_csr_read(sc, UDAV_EPDRL, val, 2); 807 808 data16 = (val[0] | (val[1] << 8)); 809 810 DPRINTFN(11, "phy=%d reg=0x%04x => 0x%04x\n", 811 phy, reg, data16); 812 813 if (!locked) 814 UDAV_UNLOCK(sc); 815 return (data16); 816 } 817 818 static int 819 udav_miibus_writereg(device_t dev, int phy, int reg, int data) 820 { 821 struct udav_softc *sc = device_get_softc(dev); 822 uint8_t val[2]; 823 int locked; 824 825 /* XXX: one PHY only for the internal PHY */ 826 if (phy != 0) 827 return (0); 828 829 locked = mtx_owned(&sc->sc_mtx); 830 if (!locked) 831 UDAV_LOCK(sc); 832 833 /* select internal PHY and set PHY register address */ 834 udav_csr_write1(sc, UDAV_EPAR, 835 UDAV_EPAR_PHY_ADR0 | (reg & UDAV_EPAR_EROA_MASK)); 836 837 /* put the value to the data registers */ 838 val[0] = (data & 0xff); 839 val[1] = (data >> 8) & 0xff; 840 udav_csr_write(sc, UDAV_EPDRL, val, 2); 841 842 /* select PHY operation and start write command */ 843 udav_csr_write1(sc, UDAV_EPCR, UDAV_EPCR_EPOS | UDAV_EPCR_ERPRW); 844 845 /* XXX: should we wait? */ 846 847 /* end write command */ 848 UDAV_CLRBIT(sc, UDAV_EPCR, UDAV_EPCR_ERPRW); 849 850 if (!locked) 851 UDAV_UNLOCK(sc); 852 return (0); 853 } 854 855 static void 856 udav_miibus_statchg(device_t dev) 857 { 858 /* nothing to do */ 859 } 860