/*- * Copyright (c) 2011 Rick van der Zwet * * Permission to use, copy, modify, and distribute this software for any * purpose with or without fee is hereby granted, provided that the above * copyright notice and this permission notice appear in all copies. * * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ /*- * Copyright (c) 2008 Johann Christian Rode * * Permission to use, copy, modify, and distribute this software for any * purpose with or without fee is hereby granted, provided that the above * copyright notice and this permission notice appear in all copies. * * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ /*- * Copyright (c) 2005, 2006, 2007 Jonathan Gray * * Permission to use, copy, modify, and distribute this software for any * purpose with or without fee is hereby granted, provided that the above * copyright notice and this permission notice appear in all copies. * * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ /*- * Copyright (c) 1997, 1998, 1999, 2000-2003 * Bill Paul . All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by Bill Paul. * 4. Neither the name of the author nor the names of any co-contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF * THE POSSIBILITY OF SUCH DAMAGE. */ #include __FBSDID("$FreeBSD$"); /* * Moschip MCS7730/MCS7830 USB to Ethernet controller * The datasheet is available at the following URL: * http://www.moschip.com/data/products/MCS7830/Data%20Sheet_7830.pdf */ /* * The FreeBSD if_mos.c driver is based on various different sources: * The vendor provided driver at the following URL: * http://www.moschip.com/data/products/MCS7830/Driver_FreeBSD_7830.tar.gz * * Mixed together with the OpenBSD if_mos.c driver for validation and checking * and the FreeBSD if_reu.c as reference for the USB Ethernet framework. */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "usbdevs.h" #define USB_DEBUG_VAR mos_debug #include #include #include //#include #include "if_mosreg.h" #ifdef USB_DEBUG static int mos_debug = 0; SYSCTL_NODE(_hw_usb, OID_AUTO, mos, CTLFLAG_RW, 0, "USB mos"); SYSCTL_INT(_hw_usb_mos, OID_AUTO, debug, CTLFLAG_RW, &mos_debug, 0, "Debug level"); #endif #define MOS_DPRINTFN(fmt,...) \ DPRINTF("mos: %s: " fmt "\n",__FUNCTION__,## __VA_ARGS__) #define USB_PRODUCT_MOSCHIP_MCS7730 0x7730 #define USB_PRODUCT_SITECOMEU_LN030 0x0021 /* Various supported device vendors/products. */ static const struct usb_device_id mos_devs[] = { {USB_VPI(USB_VENDOR_MOSCHIP, USB_PRODUCT_MOSCHIP_MCS7730, MCS7730)}, {USB_VPI(USB_VENDOR_MOSCHIP, USB_PRODUCT_MOSCHIP_MCS7830, MCS7830)}, {USB_VPI(USB_VENDOR_SITECOMEU, USB_PRODUCT_SITECOMEU_LN030, MCS7830)}, }; static int mos_probe(device_t dev); static int mos_attach(device_t dev); static void mos_attach_post(struct usb_ether *ue); static int mos_detach(device_t dev); static void mos_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error); static void mos_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error); static void mos_intr_callback(struct usb_xfer *xfer, usb_error_t error); static void mos_tick(struct usb_ether *); static void mos_start(struct usb_ether *); static void mos_init(struct usb_ether *); static void mos_chip_init(struct mos_softc *); static void mos_stop(struct usb_ether *); static int mos_miibus_readreg(device_t, int, int); static int mos_miibus_writereg(device_t, int, int, int); static void mos_miibus_statchg(device_t); static int mos_ifmedia_upd(struct ifnet *); static void mos_ifmedia_sts(struct ifnet *, struct ifmediareq *); static void mos_reset(struct mos_softc *sc); static int mos_reg_read_1(struct mos_softc *, int); static int mos_reg_read_2(struct mos_softc *, int); static int mos_reg_write_1(struct mos_softc *, int, int); static int mos_reg_write_2(struct mos_softc *, int, int); static int mos_readmac(struct mos_softc *, uint8_t *); static int mos_writemac(struct mos_softc *, uint8_t *); static int mos_write_mcast(struct mos_softc *, u_char *); static void mos_setmulti(struct usb_ether *); static void mos_setpromisc(struct usb_ether *); static const struct usb_config mos_config[MOS_ENDPT_MAX] = { [MOS_ENDPT_TX] = { .type = UE_BULK, .endpoint = UE_ADDR_ANY, .direction = UE_DIR_OUT, .bufsize = (MCLBYTES + 2), .flags = {.pipe_bof = 1,.force_short_xfer = 1,}, .callback = mos_bulk_write_callback, .timeout = 10000, }, [MOS_ENDPT_RX] = { .type = UE_BULK, .endpoint = UE_ADDR_ANY, .direction = UE_DIR_IN, .bufsize = (MCLBYTES + 4 + ETHER_CRC_LEN), .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, .callback = mos_bulk_read_callback, }, [MOS_ENDPT_INTR] = { .type = UE_INTERRUPT, .endpoint = UE_ADDR_ANY, .direction = UE_DIR_IN, .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, .bufsize = 0, .callback = mos_intr_callback, }, }; static device_method_t mos_methods[] = { /* Device interface */ DEVMETHOD(device_probe, mos_probe), DEVMETHOD(device_attach, mos_attach), DEVMETHOD(device_detach, mos_detach), /* bus interface */ DEVMETHOD(bus_print_child, bus_generic_print_child), DEVMETHOD(bus_driver_added, bus_generic_driver_added), /* MII interface */ DEVMETHOD(miibus_readreg, mos_miibus_readreg), DEVMETHOD(miibus_writereg, mos_miibus_writereg), DEVMETHOD(miibus_statchg, mos_miibus_statchg), {0, 0} }; static driver_t mos_driver = { .name = "mos", .methods = mos_methods, .size = sizeof(struct mos_softc) }; static devclass_t mos_devclass; DRIVER_MODULE(mos, uhub, mos_driver, mos_devclass, NULL, 0); DRIVER_MODULE(miibus, mos, miibus_driver, miibus_devclass, 0, 0); MODULE_DEPEND(mos, uether, 1, 1, 1); MODULE_DEPEND(mos, usb, 1, 1, 1); MODULE_DEPEND(mos, ether, 1, 1, 1); MODULE_DEPEND(mos, miibus, 1, 1, 1); static const struct usb_ether_methods mos_ue_methods = { .ue_attach_post = mos_attach_post, .ue_start = mos_start, .ue_init = mos_init, .ue_stop = mos_stop, .ue_tick = mos_tick, .ue_setmulti = mos_setmulti, .ue_setpromisc = mos_setpromisc, .ue_mii_upd = mos_ifmedia_upd, .ue_mii_sts = mos_ifmedia_sts, }; static int mos_reg_read_1(struct mos_softc *sc, int reg) { struct usb_device_request req; usb_error_t err; uByte val = 0; req.bmRequestType = UT_READ_VENDOR_DEVICE; req.bRequest = MOS_UR_READREG; USETW(req.wValue, 0); USETW(req.wIndex, reg); USETW(req.wLength, 1); err = uether_do_request(&sc->sc_ue, &req, &val, 1000); if (err) { MOS_DPRINTFN("mos_reg_read_1 error, reg: %d\n", reg); return (-1); } return (val); } static int mos_reg_read_2(struct mos_softc *sc, int reg) { struct usb_device_request req; usb_error_t err; uWord val; USETW(val, 0); req.bmRequestType = UT_READ_VENDOR_DEVICE; req.bRequest = MOS_UR_READREG; USETW(req.wValue, 0); USETW(req.wIndex, reg); USETW(req.wLength, 2); err = uether_do_request(&sc->sc_ue, &req, &val, 1000); if (err) { MOS_DPRINTFN("mos_reg_read_2 error, reg: %d", reg); return (-1); } return (UGETW(val)); } static int mos_reg_write_1(struct mos_softc *sc, int reg, int aval) { struct usb_device_request req; usb_error_t err; uByte val; val = aval; req.bmRequestType = UT_WRITE_VENDOR_DEVICE; req.bRequest = MOS_UR_WRITEREG; USETW(req.wValue, 0); USETW(req.wIndex, reg); USETW(req.wLength, 1); err = uether_do_request(&sc->sc_ue, &req, &val, 1000); if (err) { MOS_DPRINTFN("mos_reg_write_1 error, reg: %d", reg); return (-1); } return (0); } static int mos_reg_write_2(struct mos_softc *sc, int reg, int aval) { struct usb_device_request req; usb_error_t err; uWord val; USETW(val, aval); req.bmRequestType = UT_WRITE_VENDOR_DEVICE; req.bRequest = MOS_UR_WRITEREG; USETW(req.wValue, 0); USETW(req.wIndex, reg); USETW(req.wLength, 2); err = uether_do_request(&sc->sc_ue, &req, &val, 1000); if (err) { MOS_DPRINTFN("mos_reg_write_2 error, reg: %d", reg); return (-1); } return (0); } static int mos_readmac(struct mos_softc *sc, u_char *mac) { struct usb_device_request req; usb_error_t err; req.bmRequestType = UT_READ_VENDOR_DEVICE; req.bRequest = MOS_UR_READREG; USETW(req.wValue, 0); USETW(req.wIndex, MOS_MAC); USETW(req.wLength, ETHER_ADDR_LEN); err = uether_do_request(&sc->sc_ue, &req, mac, 1000); if (err) { return (-1); } return (0); } static int mos_writemac(struct mos_softc *sc, uint8_t *mac) { struct usb_device_request req; usb_error_t err; req.bmRequestType = UT_WRITE_VENDOR_DEVICE; req.bRequest = MOS_UR_WRITEREG; USETW(req.wValue, 0); USETW(req.wIndex, MOS_MAC); USETW(req.wLength, ETHER_ADDR_LEN); err = uether_do_request(&sc->sc_ue, &req, mac, 1000); if (err) { MOS_DPRINTFN("mos_writemac error"); return (-1); } return (0); } static int mos_write_mcast(struct mos_softc *sc, u_char *hashtbl) { struct usb_device_request req; usb_error_t err; req.bmRequestType = UT_WRITE_VENDOR_DEVICE; req.bRequest = MOS_UR_WRITEREG; USETW(req.wValue, 0); USETW(req.wIndex, MOS_MCAST_TABLE); USETW(req.wLength, 8); err = uether_do_request(&sc->sc_ue, &req, hashtbl, 1000); if (err) { MOS_DPRINTFN("mos_reg_mcast error"); return (-1); } return (0); } static int mos_miibus_readreg(struct device *dev, int phy, int reg) { struct mos_softc *sc = device_get_softc(dev); uWord val; int i, res, locked; USETW(val, 0); locked = mtx_owned(&sc->sc_mtx); if (!locked) MOS_LOCK(sc); mos_reg_write_2(sc, MOS_PHY_DATA, 0); mos_reg_write_1(sc, MOS_PHY_CTL, (phy & MOS_PHYCTL_PHYADDR) | MOS_PHYCTL_READ); mos_reg_write_1(sc, MOS_PHY_STS, (reg & MOS_PHYSTS_PHYREG) | MOS_PHYSTS_PENDING); for (i = 0; i < MOS_TIMEOUT; i++) { if (mos_reg_read_1(sc, MOS_PHY_STS) & MOS_PHYSTS_READY) break; } if (i == MOS_TIMEOUT) { MOS_DPRINTFN("MII read timeout"); } res = mos_reg_read_2(sc, MOS_PHY_DATA); if (!locked) MOS_UNLOCK(sc); return (res); } static int mos_miibus_writereg(device_t dev, int phy, int reg, int val) { struct mos_softc *sc = device_get_softc(dev); int i, locked; locked = mtx_owned(&sc->sc_mtx); if (!locked) MOS_LOCK(sc); mos_reg_write_2(sc, MOS_PHY_DATA, val); mos_reg_write_1(sc, MOS_PHY_CTL, (phy & MOS_PHYCTL_PHYADDR) | MOS_PHYCTL_WRITE); mos_reg_write_1(sc, MOS_PHY_STS, (reg & MOS_PHYSTS_PHYREG) | MOS_PHYSTS_PENDING); for (i = 0; i < MOS_TIMEOUT; i++) { if (mos_reg_read_1(sc, MOS_PHY_STS) & MOS_PHYSTS_READY) break; } if (i == MOS_TIMEOUT) MOS_DPRINTFN("MII write timeout"); if (!locked) MOS_UNLOCK(sc); return 0; } static void mos_miibus_statchg(device_t dev) { struct mos_softc *sc = device_get_softc(dev); struct mii_data *mii = GET_MII(sc); int val, err, locked; locked = mtx_owned(&sc->sc_mtx); if (!locked) MOS_LOCK(sc); /* disable RX, TX prior to changing FDX, SPEEDSEL */ val = mos_reg_read_1(sc, MOS_CTL); val &= ~(MOS_CTL_TX_ENB | MOS_CTL_RX_ENB); mos_reg_write_1(sc, MOS_CTL, val); /* reset register which counts dropped frames */ mos_reg_write_1(sc, MOS_FRAME_DROP_CNT, 0); if ((mii->mii_media_active & IFM_GMASK) == IFM_FDX) val |= MOS_CTL_FDX_ENB; else val &= ~(MOS_CTL_FDX_ENB); switch (IFM_SUBTYPE(mii->mii_media_active)) { case IFM_100_TX: val |= MOS_CTL_SPEEDSEL; break; case IFM_10_T: val &= ~(MOS_CTL_SPEEDSEL); break; } /* re-enable TX, RX */ val |= (MOS_CTL_TX_ENB | MOS_CTL_RX_ENB); err = mos_reg_write_1(sc, MOS_CTL, val); if (err) MOS_DPRINTFN("media change failed"); if (!locked) MOS_UNLOCK(sc); } /* * Set media options. */ static int mos_ifmedia_upd(struct ifnet *ifp) { struct mos_softc *sc = ifp->if_softc; struct mii_data *mii = GET_MII(sc); struct mii_softc *miisc; MOS_LOCK_ASSERT(sc, MA_OWNED); sc->mos_link = 0; if (mii->mii_instance) { LIST_FOREACH(miisc, &mii->mii_phys, mii_list) mii_phy_reset(miisc); } mii_mediachg(mii); return (0); } /* * Report current media status. */ static void mos_ifmedia_sts(struct ifnet *ifp, struct ifmediareq *ifmr) { struct mos_softc *sc = ifp->if_softc; struct mii_data *mii = GET_MII(sc); MOS_LOCK(sc); mii_pollstat(mii); MOS_UNLOCK(sc); ifmr->ifm_active = mii->mii_media_active; ifmr->ifm_status = mii->mii_media_status; } static void mos_setpromisc(struct usb_ether *ue) { struct mos_softc *sc = uether_getsc(ue); struct ifnet *ifp = uether_getifp(ue); uint8_t rxmode; MOS_LOCK_ASSERT(sc, MA_OWNED); rxmode = mos_reg_read_1(sc, MOS_CTL); /* If we want promiscuous mode, set the allframes bit. */ if (ifp->if_flags & IFF_PROMISC) { rxmode |= MOS_CTL_RX_PROMISC; } else { rxmode &= ~MOS_CTL_RX_PROMISC; } mos_reg_write_1(sc, MOS_CTL, rxmode); } static void mos_setmulti(struct usb_ether *ue) { struct mos_softc *sc = uether_getsc(ue); struct ifnet *ifp = uether_getifp(ue); struct ifmultiaddr *ifma; uint32_t h = 0; uint8_t rxmode; uint8_t hashtbl[8] = {0, 0, 0, 0, 0, 0, 0, 0}; int allmulti = 0; MOS_LOCK_ASSERT(sc, MA_OWNED); rxmode = mos_reg_read_1(sc, MOS_CTL); if (ifp->if_flags & IFF_ALLMULTI || ifp->if_flags & IFF_PROMISC) allmulti = 1; /* get all new ones */ if_maddr_rlock(ifp); TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) { if (ifma->ifma_addr->sa_family != AF_LINK) { allmulti = 1; continue; }; h = ether_crc32_be(LLADDR((struct sockaddr_dl *) ifma->ifma_addr), ETHER_ADDR_LEN) >> 26; hashtbl[h / 8] |= 1 << (h % 8); } if_maddr_runlock(ifp); /* now program new ones */ if (allmulti == 1) { rxmode |= MOS_CTL_ALLMULTI; mos_reg_write_1(sc, MOS_CTL, rxmode); } else { rxmode &= ~MOS_CTL_ALLMULTI; mos_write_mcast(sc, (void *)&hashtbl); mos_reg_write_1(sc, MOS_CTL, rxmode); } } static void mos_reset(struct mos_softc *sc) { uint8_t ctl; ctl = mos_reg_read_1(sc, MOS_CTL); ctl &= ~(MOS_CTL_RX_PROMISC | MOS_CTL_ALLMULTI | MOS_CTL_TX_ENB | MOS_CTL_RX_ENB); /* Disable RX, TX, promiscuous and allmulticast mode */ mos_reg_write_1(sc, MOS_CTL, ctl); /* Reset frame drop counter register to zero */ mos_reg_write_1(sc, MOS_FRAME_DROP_CNT, 0); /* Wait a little while for the chip to get its brains in order. */ DELAY(1000); return; } static void mos_chip_init(struct mos_softc *sc) { int i; /* * Rev.C devices have a pause threshold register which needs to be set * at startup. */ if (mos_reg_read_1(sc, MOS_PAUSE_TRHD) != -1) { for (i = 0; i < MOS_PAUSE_REWRITES; i++) mos_reg_write_1(sc, MOS_PAUSE_TRHD, 0); } sc->mos_phyaddrs[0] = 1; sc->mos_phyaddrs[1] = 0xFF; } /* * Probe for a MCS7x30 chip. */ static int mos_probe(device_t dev) { struct usb_attach_arg *uaa = device_get_ivars(dev); int retval; if (uaa->usb_mode != USB_MODE_HOST) { return (ENXIO); } if (uaa->info.bConfigIndex != 0) { return (ENXIO); } if (uaa->info.bIfaceIndex != 0) { return (ENXIO); } retval = usbd_lookup_id_by_uaa(mos_devs, sizeof(mos_devs), uaa); return retval; } /* * Attach the interface. Allocate softc structures, do ifmedia * setup and ethernet/BPF attach. */ static int mos_attach(device_t dev) { struct usb_attach_arg *uaa = device_get_ivars(dev); struct mos_softc *sc = device_get_softc(dev); struct usb_ether *ue = &sc->sc_ue; uint8_t iface_index; int error; sc->mos_flags = USB_GET_DRIVER_INFO(uaa); device_set_usb_desc(dev); mtx_init(&sc->sc_mtx, device_get_nameunit(dev), NULL, MTX_DEF); iface_index = MOS_IFACE_IDX; error = usbd_transfer_setup(uaa->device, &iface_index, sc->sc_xfer, mos_config, MOS_ENDPT_MAX, sc, &sc->sc_mtx); if (error) { device_printf(dev, "allocating USB transfers failed\n"); goto detach; } ue->ue_sc = sc; ue->ue_dev = dev; ue->ue_udev = uaa->device; ue->ue_mtx = &sc->sc_mtx; ue->ue_methods = &mos_ue_methods; if (sc->mos_flags & MCS7730) { MOS_DPRINTFN("model: MCS7730"); } else if (sc->mos_flags & MCS7830) { MOS_DPRINTFN("model: MCS7830"); } error = uether_ifattach(ue); if (error) { device_printf(dev, "could not attach interface\n"); goto detach; } return (0); detach: mos_detach(dev); return (ENXIO); } static void mos_attach_post(struct usb_ether *ue) { struct mos_softc *sc = uether_getsc(ue); int err; /* Read MAC address, inform the world. */ err = mos_readmac(sc, ue->ue_eaddr); if (err) MOS_DPRINTFN("couldn't get MAC address"); MOS_DPRINTFN("address: %s", ether_sprintf(ue->ue_eaddr)); mos_chip_init(sc); } static int mos_detach(device_t dev) { struct mos_softc *sc = device_get_softc(dev); struct usb_ether *ue = &sc->sc_ue; usbd_transfer_unsetup(sc->sc_xfer, MOS_ENDPT_MAX); uether_ifdetach(ue); mtx_destroy(&sc->sc_mtx); return (0); } /* * A frame has been uploaded: pass the resulting mbuf chain up to * the higher level protocols. */ static void mos_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error) { struct mos_softc *sc = usbd_xfer_softc(xfer); struct usb_ether *ue = &sc->sc_ue; struct ifnet *ifp = uether_getifp(ue); uint8_t rxstat = 0; uint32_t actlen; uint16_t pktlen = 0; struct usb_page_cache *pc; usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL); pc = usbd_xfer_get_frame(xfer, 0); switch (USB_GET_STATE(xfer)) { case USB_ST_TRANSFERRED: MOS_DPRINTFN("actlen : %d", actlen); if (actlen <= 1) { ifp->if_ierrors++; goto tr_setup; } /* evaluate status byte at the end */ usbd_copy_out(pc, actlen - sizeof(rxstat), &rxstat, sizeof(rxstat)); if (rxstat != MOS_RXSTS_VALID) { MOS_DPRINTFN("erroneous frame received"); if (rxstat & MOS_RXSTS_SHORT_FRAME) MOS_DPRINTFN("frame size less than 64 bytes"); if (rxstat & MOS_RXSTS_LARGE_FRAME) MOS_DPRINTFN("frame size larger than 1532 bytes"); if (rxstat & MOS_RXSTS_CRC_ERROR) MOS_DPRINTFN("CRC error"); if (rxstat & MOS_RXSTS_ALIGN_ERROR) MOS_DPRINTFN("alignment error"); ifp->if_ierrors++; goto tr_setup; } /* Remember the last byte was used for the status fields */ pktlen = actlen - 1; if (pktlen < sizeof(struct ether_header)) { MOS_DPRINTFN("error: pktlen %i is smaller than ether_header %i", pktlen, sizeof(struct ether_header)); ifp->if_ierrors++; goto tr_setup; } uether_rxbuf(ue, pc, 0, actlen); /* FALLTHROUGH */ case USB_ST_SETUP: tr_setup: usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); usbd_transfer_submit(xfer); uether_rxflush(ue); return; default: MOS_DPRINTFN("bulk read error, %s", usbd_errstr(error)); if (error != USB_ERR_CANCELLED) { usbd_xfer_set_stall(xfer); goto tr_setup; } MOS_DPRINTFN("start rx %i", usbd_xfer_max_len(xfer)); return; } } /* * A frame was downloaded to the chip. It's safe for us to clean up * the list buffers. */ static void mos_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error) { struct mos_softc *sc = usbd_xfer_softc(xfer); struct ifnet *ifp = uether_getifp(&sc->sc_ue); struct usb_page_cache *pc; struct mbuf *m; switch (USB_GET_STATE(xfer)) { case USB_ST_TRANSFERRED: MOS_DPRINTFN("transfer of complete"); ifp->if_opackets++; /* FALLTHROUGH */ case USB_ST_SETUP: tr_setup: /* * XXX: don't send anything if there is no link? */ IFQ_DRV_DEQUEUE(&ifp->if_snd, m); if (m == NULL) return; pc = usbd_xfer_get_frame(xfer, 0); usbd_m_copy_in(pc, 0, m, 0, m->m_pkthdr.len); usbd_xfer_set_frame_len(xfer, 0, m->m_pkthdr.len); /* * if there's a BPF listener, bounce a copy * of this frame to him: */ BPF_MTAP(ifp, m); m_freem(m); usbd_transfer_submit(xfer); ifp->if_opackets++; return; default: MOS_DPRINTFN("usb error on tx: %s\n", usbd_errstr(error)); ifp->if_oerrors++; if (error != USB_ERR_CANCELLED) { usbd_xfer_set_stall(xfer); goto tr_setup; } return; } } static void mos_tick(struct usb_ether *ue) { struct mos_softc *sc = uether_getsc(ue); struct mii_data *mii = GET_MII(sc); MOS_LOCK_ASSERT(sc, MA_OWNED); mii_tick(mii); if (!sc->mos_link && mii->mii_media_status & IFM_ACTIVE && IFM_SUBTYPE(mii->mii_media_active) != IFM_NONE) { MOS_DPRINTFN("got link"); sc->mos_link++; mos_start(ue); } } static void mos_start(struct usb_ether *ue) { struct mos_softc *sc = uether_getsc(ue); /* * start the USB transfers, if not already started: */ usbd_transfer_start(sc->sc_xfer[MOS_ENDPT_TX]); usbd_transfer_start(sc->sc_xfer[MOS_ENDPT_RX]); usbd_transfer_start(sc->sc_xfer[MOS_ENDPT_INTR]); } static void mos_init(struct usb_ether *ue) { struct mos_softc *sc = uether_getsc(ue); struct ifnet *ifp = uether_getifp(ue); uint8_t rxmode; MOS_LOCK_ASSERT(sc, MA_OWNED); /* Cancel pending I/O and free all RX/TX buffers. */ mos_reset(sc); /* Write MAC address */ mos_writemac(sc, IF_LLADDR(ifp)); /* Read and set transmitter IPG values */ sc->mos_ipgs[0] = mos_reg_read_1(sc, MOS_IPG0); sc->mos_ipgs[1] = mos_reg_read_1(sc, MOS_IPG1); mos_reg_write_1(sc, MOS_IPG0, sc->mos_ipgs[0]); mos_reg_write_1(sc, MOS_IPG1, sc->mos_ipgs[1]); /* * Enable receiver and transmitter, bridge controls speed/duplex * mode */ rxmode = mos_reg_read_1(sc, MOS_CTL); rxmode |= MOS_CTL_RX_ENB | MOS_CTL_TX_ENB | MOS_CTL_BS_ENB; rxmode &= ~(MOS_CTL_SLEEP); mos_setpromisc(ue); /* XXX: broadcast mode? */ mos_reg_write_1(sc, MOS_CTL, rxmode); /* Load the multicast filter. */ mos_setmulti(ue); ifp->if_drv_flags |= IFF_DRV_RUNNING; mos_start(ue); } static void mos_intr_callback(struct usb_xfer *xfer, usb_error_t error) { struct mos_softc *sc = usbd_xfer_softc(xfer); struct ifnet *ifp = uether_getifp(&sc->sc_ue); struct usb_page_cache *pc; uint32_t pkt; int actlen; ifp->if_oerrors++; usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL); MOS_DPRINTFN("actlen %i", actlen); switch (USB_GET_STATE(xfer)) { case USB_ST_TRANSFERRED: pc = usbd_xfer_get_frame(xfer, 0); usbd_copy_out(pc, 0, &pkt, sizeof(pkt)); /* FALLTHROUGH */ case USB_ST_SETUP: tr_setup: return; default: if (error != USB_ERR_CANCELLED) { usbd_xfer_set_stall(xfer); goto tr_setup; } return; } } /* * Stop the adapter and free any mbufs allocated to the * RX and TX lists. */ static void mos_stop(struct usb_ether *ue) { struct mos_softc *sc = uether_getsc(ue); struct ifnet *ifp = uether_getifp(ue); mos_reset(sc); MOS_LOCK_ASSERT(sc, MA_OWNED); ifp->if_drv_flags &= ~IFF_DRV_RUNNING; /* stop all the transfers, if not already stopped */ usbd_transfer_stop(sc->sc_xfer[MOS_ENDPT_TX]); usbd_transfer_stop(sc->sc_xfer[MOS_ENDPT_RX]); usbd_transfer_stop(sc->sc_xfer[MOS_ENDPT_INTR]); sc->mos_link = 0; }