/* $NetBSD: if_uax.c,v 1.9 2003/10/15 08:28:29 tron Exp $ */ /* * Copyright (c) 2003 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Lennart Augustsson (lennart@augustsson.net). * * 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 the NetBSD * Foundation, Inc. and its contributors. * 4. Neither the name of The NetBSD Foundation nor the names of its * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 THE FOUNDATION OR CONTRIBUTORS * 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. */ /* * TODO: * toggle link LED * do something in interrupt routine */ /* * Driver for the ASIX AX88172 Fast Ethernet USB 2.0 adapter. * Data sheet at * http://www.asix.com.tw/datasheet/mac/Ax88172.PDF * There AX88170 datasheet contains RX control register definitions. * http://www.asix.com.tw/datasheet/mac/Ax88170.PDF */ #include __KERNEL_RCSID(0, "$NetBSD: if_uax.c,v 1.9 2003/10/15 08:28:29 tron Exp $"); #include "opt_inet.h" #include "opt_ns.h" #include "bpfilter.h" #include "rnd.h" #include #include #include #include #include #include #include #include #if NRND > 0 #include #endif #include #include #include #include #define BPF_MTAP(ifp, m) bpf_mtap((ifp)->if_bpf, (m)) #if NBPFILTER > 0 #include #endif #include #ifdef INET #include #include #endif #ifdef NS #include #include #endif #include #include #include #include #include #include #include #ifdef UAX_DEBUG #define DPRINTF(x) if (uaxdebug) logprintf x #define DPRINTFN(n,x) if (uaxdebug >= (n)) logprintf x int uaxdebug = 0; #else #define DPRINTF(x) #define DPRINTFN(n,x) #endif #define ETHER_ALIGN 2 /********** if_uaxvar.h ***********/ #define UAX_ENDPT_RX 0 #define UAX_ENDPT_TX 1 #define UAX_ENDPT_INTR 2 #define UAX_ENDPT_MAX 3 /* XXX Must be 1 for now */ #define UAX_TX_LIST_CNT 1 #define UAX_RX_LIST_CNT 2 struct uax_softc; struct uax_chain { struct uax_softc *uch_sc; usbd_xfer_handle uch_xfer; char *uch_buf; struct mbuf *uch_mbuf; int uch_idx; }; struct uax_phy_info { int phy; int phy_type; int phy_present; }; struct uax_softc { USBBASEDEVICE sc_dev; struct ethercom sc_ec; struct mii_data sc_mii; #if NRND > 0 rndsource_element_t sc_rnd_source; #endif #define GET_IFP(sc) (&(sc)->sc_ec.ec_if) #define GET_MII(sc) (&(sc)->sc_mii) usb_callout_t sc_stat_ch; usbd_device_handle sc_udev; usbd_interface_handle sc_iface; u_int16_t sc_vendor; u_int16_t sc_product; int sc_ed[UAX_ENDPT_MAX]; usbd_pipe_handle sc_ep[UAX_ENDPT_MAX]; u_int8_t sc_link; int sc_chip_version; struct uax_phy_info sc_phys[UAX_MAX_PHYS]; int sc_nphys; int sc_pna; /* XXX never set */ u_int8_t sc_mcast[UAX_MULTI_FILTER_SIZE]; u_int8_t sc_packet_filter; int sc_sw_mii; /* Tx info */ struct uax_chain sc_tx_chain[UAX_TX_LIST_CNT]; #if 0 int sc_tx_prod; int sc_tx_cons; #endif int sc_tx_cnt; /* Rx info */ struct uax_chain sc_rx_chain[UAX_RX_LIST_CNT]; u_int sc_rx_errs; struct timeval sc_rx_notice; /* Interrupt info */ struct uax_intrpkt sc_ibuf; u_int sc_intr_errs; struct usb_task sc_tick_task; struct usb_task sc_stop_task; int sc_refcnt; char sc_dying; char sc_attached; }; Static const struct usb_devno uax_devs[] = { { USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_UFE2000 }, { USB_VENDOR_ASIX, USB_PRODUCT_ASIX_AX88172 }, { USB_VENDOR_DLINK, USB_PRODUCT_DLINK_DUBE100}, { USB_VENDOR_LINKSYS2, USB_PRODUCT_LINKSYS2_USB200M }, { USB_VENDOR_NETGEAR, USB_PRODUCT_NETGEAR_FA120 }, }; #define uax_lookup(v, p) ((struct uax_type *)usb_lookup(uax_devs, v, p)) Static void uax_start(struct ifnet *); Static int uax_ioctl(struct ifnet *, u_long, caddr_t); Static void uax_stop(struct ifnet *, int); Static int uax_init(struct ifnet *); Static void uax_watchdog(struct ifnet *); Static void uax_stop_wrap(void *v); Static void uax_tick(void *); Static void uax_tick_task(void *); Static int uax_miibus_readreg(device_ptr_t, int, int); Static void uax_miibus_writereg(device_ptr_t, int, int, int); Static void uax_miibus_statchg(device_ptr_t); Static int uax_ifmedia_upd(struct ifnet *); Static void uax_ifmedia_sts(struct ifnet *, struct ifmediareq *); /*Static void uax_reset(struct uax_softc *sc);*/ Static void uax_setup(struct uax_softc *sc); Static void uax_phy_init(struct uax_softc *sc, int i); Static void uax_setup_phy(struct uax_softc *sc); Static void uax_read_mac(struct uax_softc *, u_char *); Static void uax_grab_mii(struct uax_softc *sc); Static void uax_ungrab_mii(struct uax_softc *sc); Static int uax_send(struct uax_softc *, struct mbuf *, int); Static void uax_intr(usbd_xfer_handle, usbd_private_handle, usbd_status); Static void uax_rxeof(usbd_xfer_handle, usbd_private_handle, usbd_status); Static void uax_txeof(usbd_xfer_handle, usbd_private_handle, usbd_status); Static int uax_tx_list_init(struct uax_softc *); Static int uax_rx_list_init(struct uax_softc *); Static int uax_newbuf(struct uax_softc *, struct uax_chain *, struct mbuf *); Static int uax_openpipes(struct uax_softc *); Static u_int32_t uax_crc(u_int8_t *eaddr); Static void uax_setmulti(struct uax_softc *sc); static inline usbd_status uax_request(struct uax_softc *sc, uint type, uint req, uint value, uint index, uint len, void *data); static inline usbd_status uax_request(struct uax_softc *sc, uint type, uint rq, uint value, uint indx, uint len, void *data) { usb_device_request_t req; req.bmRequestType = type; req.bRequest = rq; USETW(req.wValue, value); USETW(req.wIndex, indx); USETW(req.wLength, len); return (usbd_do_request(sc->sc_udev, &req, data)); } /*******/ USB_DECLARE_DRIVER(uax); USB_MATCH(uax) { USB_MATCH_START(uax, uaa); if (uaa->iface != NULL) return (UMATCH_NONE); return (uax_lookup(uaa->vendor, uaa->product) != NULL ? UMATCH_VENDOR_PRODUCT : UMATCH_NONE); } /* * Attach the interface. Allocate softc structures, do ifmedia * setup and ethernet/BPF attach. */ USB_ATTACH(uax) { USB_ATTACH_START(uax, sc, uaa); char devinfo[1024]; int s; u_char eaddr[ETHER_ADDR_LEN]; struct ifnet *ifp; struct mii_data *mii; usbd_device_handle dev = uaa->device; usbd_interface_handle iface; usbd_status err; usb_interface_descriptor_t *id; usb_endpoint_descriptor_t *ed; int i; DPRINTFN(5,(" : uax_attach: sc=%p", sc)); usbd_devinfo(dev, 0, devinfo); USB_ATTACH_SETUP; printf("%s: %s\n", USBDEVNAME(sc->sc_dev), devinfo); err = usbd_set_config_no(dev, UAX_CONFIG_NO, 1); if (err) { printf("%s: setting config no failed\n", USBDEVNAME(sc->sc_dev)); USB_ATTACH_ERROR_RETURN; } ifp = GET_IFP(sc); usb_init_task(&sc->sc_tick_task, uax_tick_task, sc); usb_init_task(&sc->sc_stop_task, uax_stop_wrap, ifp); err = usbd_device2interface_handle(dev, UAX_IFACE_IDX, &iface); if (err) { printf("%s: getting interface handle failed\n", USBDEVNAME(sc->sc_dev)); USB_ATTACH_ERROR_RETURN; } sc->sc_udev = dev; sc->sc_iface = iface; sc->sc_product = uaa->product; sc->sc_vendor = uaa->vendor; id = usbd_get_interface_descriptor(iface); /* Find endpoints. */ for (i = 0; i < id->bNumEndpoints; i++) { ed = usbd_interface2endpoint_descriptor(iface, i); if (ed == NULL) { printf("%s: couldn't get endpoint descriptor %d\n", USBDEVNAME(sc->sc_dev), i); USB_ATTACH_ERROR_RETURN; } if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { sc->sc_ed[UAX_ENDPT_RX] = ed->bEndpointAddress; } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT && UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { sc->sc_ed[UAX_ENDPT_TX] = ed->bEndpointAddress; } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && UE_GET_XFERTYPE(ed->bmAttributes) == UE_INTERRUPT) { sc->sc_ed[UAX_ENDPT_INTR] = ed->bEndpointAddress; } } if (sc->sc_ed[UAX_ENDPT_RX] == 0 || sc->sc_ed[UAX_ENDPT_TX] == 0 || sc->sc_ed[UAX_ENDPT_INTR] == 0) { printf("%s: missing endpoint\n", USBDEVNAME(sc->sc_dev)); USB_ATTACH_ERROR_RETURN; } /* Get data from chip and set up hw. */ uax_setup(sc); uax_setup_phy(sc); printf("%s: chip version %d\n", USBDEVNAME(sc->sc_dev), sc->sc_chip_version); #if UAX_DEBUG if (uaxdebug) { for (i = 0; i < UAX_MAX_PHYS; i++) { printf("%s: phy%d present=%d id=%d type=%d\n", USBDEVNAME(sc->sc_dev), i, sc->sc_phys[i].phy_present, sc->sc_phys[i].phy, sc->sc_phys[i].phy_type); } } #endif s = splnet(); /* * Get station address from the EEPROM. */ uax_read_mac(sc, eaddr); /* * A Pegasus chip was detected. Inform the world. */ printf("%s: Ethernet address %s\n", USBDEVNAME(sc->sc_dev), ether_sprintf(eaddr)); /* Initialize interface info.*/ ifp->if_softc = sc; ifp->if_mtu = ETHERMTU; ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; ifp->if_ioctl = uax_ioctl; ifp->if_start = uax_start; ifp->if_watchdog = uax_watchdog; ifp->if_init = uax_init; ifp->if_stop = uax_stop; strncpy(ifp->if_xname, USBDEVNAME(sc->sc_dev), IFNAMSIZ); IFQ_SET_READY(&ifp->if_snd); /* Initialize MII/media info. */ mii = &sc->sc_mii; mii->mii_ifp = ifp; mii->mii_readreg = uax_miibus_readreg; mii->mii_writereg = uax_miibus_writereg; mii->mii_statchg = uax_miibus_statchg; mii->mii_flags = MIIF_AUTOTSLEEP; ifmedia_init(&mii->mii_media, 0, uax_ifmedia_upd, uax_ifmedia_sts); uax_grab_mii(sc); mii_attach(self, mii, ~0, MII_PHY_ANY, MII_OFFSET_ANY, 0); uax_ungrab_mii(sc); if (LIST_FIRST(&mii->mii_phys) == NULL) { ifmedia_add(&mii->mii_media, IFM_ETHER | IFM_NONE, 0, NULL); ifmedia_set(&mii->mii_media, IFM_ETHER | IFM_NONE); } else ifmedia_set(&mii->mii_media, IFM_ETHER | IFM_AUTO); /* Attach the interface. */ if_attach(ifp); Ether_ifattach(ifp, eaddr); #if NRND > 0 rnd_attach_source(&sc->sc_rnd_source, USBDEVNAME(sc->sc_dev), RND_TYPE_NET, 0); #endif usb_callout_init(sc->sc_stat_ch); sc->sc_attached = 1; splx(s); usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev, USBDEV(sc->sc_dev)); USB_ATTACH_SUCCESS_RETURN; } USB_DETACH(uax) { USB_DETACH_START(uax, sc); struct ifnet *ifp = GET_IFP(sc); int s; DPRINTFN(2,("%s: %s: enter\n", USBDEVNAME(sc->sc_dev), __func__)); if (!sc->sc_attached) { /* Detached before attached finished, so just bail out. */ return (0); } usb_uncallout(sc->sc_stat_ch, uax_tick, sc); /* * Remove any pending tasks. They cannot be executing because they run * in the same thread as detach. */ usb_rem_task(sc->sc_udev, &sc->sc_tick_task); usb_rem_task(sc->sc_udev, &sc->sc_stop_task); s = splusb(); if (ifp->if_flags & IFF_RUNNING) uax_stop(ifp, 1); #if NRND > 0 rnd_detach_source(&sc->sc_rnd_source); #endif mii_detach(&sc->sc_mii, MII_PHY_ANY, MII_OFFSET_ANY); ifmedia_delete_instance(&sc->sc_mii.mii_media, IFM_INST_ANY); ether_ifdetach(ifp); if_detach(ifp); #ifdef DIAGNOSTIC if (sc->sc_ep[UAX_ENDPT_TX] != NULL || sc->sc_ep[UAX_ENDPT_RX] != NULL || sc->sc_ep[UAX_ENDPT_INTR] != NULL) printf("%s: detach has active endpoints\n", USBDEVNAME(sc->sc_dev)); #endif sc->sc_attached = 0; if (--sc->sc_refcnt >= 0) { /* Wait for processes to go away. */ usb_detach_wait(USBDEV(sc->sc_dev)); } splx(s); usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev, USBDEV(sc->sc_dev)); return (0); } int uax_activate(device_ptr_t self, enum devact act) { struct uax_softc *sc = (struct uax_softc *)self; DPRINTFN(2,("%s: %s: enter\n", USBDEVNAME(sc->sc_dev), __func__)); switch (act) { case DVACT_ACTIVATE: return (EOPNOTSUPP); break; case DVACT_DEACTIVATE: if_deactivate(&sc->sc_ec.ec_if); sc->sc_dying = 1; break; } return (0); } Static void uax_setup(struct uax_softc *sc) { uByte version; uByte mii_data[2]; /* Get chip version */ version = 0; (void)uax_request(sc, UT_READ_VENDOR_DEVICE, UAX_GET_MONITOR_MODE, 0, 0, sizeof version, &version); sc->sc_chip_version = version; /* Get PHY id */ (void)uax_request(sc, UT_READ_VENDOR_DEVICE, UAX_READ_PHYID, 0, 0, sizeof mii_data, &mii_data); sc->sc_phys[0].phy = UAX_GET_PHY(mii_data[1]); sc->sc_phys[0].phy_type = UAX_GET_PHY_TYPE(mii_data[1]); sc->sc_phys[1].phy = UAX_GET_PHY(mii_data[0]); sc->sc_phys[1].phy_type = UAX_GET_PHY_TYPE(mii_data[0]); /* Read multicast filter array */ (void)uax_request(sc, UT_READ_VENDOR_DEVICE, UAX_READ_MULTI_FILTER, 0, 0, sizeof sc->sc_mcast, &sc->sc_mcast); sc->sc_packet_filter = UAX_RX_BROADCAST | UAX_RX_DIRECTED; } Static void uax_phy_init(struct uax_softc *sc, int i) { struct uax_phy_info *p = &sc->sc_phys[i]; DPRINTF(("uax_phy_init: i=%d\n", i)); if (p->phy || p->phy_type != 7) { u_int16_t v1, v2; v1 = uax_miibus_readreg(&sc->sc_dev, p->phy, MII_BMSR); v2 = uax_miibus_readreg(&sc->sc_dev, p->phy, MII_BMCR); if ((v1 & v2) != 0xffff) { #if 0 /* * The data sheet and the Windows driver isolates and * power down the PHY at this point, but doing so * makes mii_attach() fail often. */ uax_miibus_writereg(&sc->sc_dev, p->phy, MII_BMCR, BMCR_ISO | BMCR_PDOWN); #endif p->phy_present = 1; sc->sc_nphys++; } } DPRINTF(("uax_phy_init: i=%d done\n", i)); } /* Switch to software PHY access mode. */ Static void uax_grab_mii(struct uax_softc *sc) { if (sc->sc_sw_mii++ > 0) return; (void)uax_request(sc, UT_WRITE_VENDOR_DEVICE, UAX_SOFTWARE_MII, 0, 0, 0, NULL); } /* Switch to hardware PHY access mode. */ Static void uax_ungrab_mii(struct uax_softc *sc) { if (--sc->sc_sw_mii > 0) return; (void)uax_request(sc, UT_WRITE_VENDOR_DEVICE, UAX_HARDWARE_MII, 0, 0, 0, NULL); } #define PHY_TIMEOUT 10000 /* Magic taken from the Windows driver. */ Static void uax_setup_phy(struct uax_softc *sc) { uByte status; int i; uax_grab_mii(sc); for (i = 0; i < PHY_TIMEOUT; i++) { delay(50); status = 0; uax_request(sc, UT_READ_VENDOR_DEVICE, UAX_READ_MII_OPMODE, 0, 0, sizeof status, &status); if (status & 1) break; } if (i >= PHY_TIMEOUT) printf("%s: mii status read timeout\n",USBDEVNAME(sc->sc_dev)); for (i = 0; i < UAX_MAX_PHYS; i++) uax_phy_init(sc, i); uax_ungrab_mii(sc); (void)uax_request(sc, UT_WRITE_VENDOR_DEVICE, UAX_WRITE_IPG, sc->sc_pna ? 0x17 : 0x15, 0, 0, NULL); (void)uax_request(sc, UT_WRITE_VENDOR_DEVICE, UAX_WRITE_IPG1, 0x0c, 0, 0, NULL); (void)uax_request(sc, UT_WRITE_VENDOR_DEVICE, UAX_WRITE_IPG2, sc->sc_pna ? 0x14 : 0x12, 0, 0, NULL); } Static void uax_read_mac(struct uax_softc *sc, u_char *dest) { usbd_status err; if (sc->sc_dying) return; err = uax_request(sc, UT_READ_VENDOR_DEVICE, UAX_READ_NODEID, 0, 0, ETHER_ADDR_LEN, dest); if (err) { DPRINTF(("%s: uax_read_mac error=%s\n", USBDEVNAME(sc->sc_dev), usbd_errstr(err))); } } /* * uax_ioctl: [ifnet interface function] * * Handle control requests from the operator. */ int uax_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data) { struct uax_softc *sc = ifp->if_softc; struct ifreq *ifr = (struct ifreq *)data; int s, error; s = splnet(); switch (cmd) { case SIOCSIFMEDIA: case SIOCGIFMEDIA: error = ifmedia_ioctl(ifp, ifr, &sc->sc_mii.mii_media, cmd); break; default: error = ether_ioctl(ifp, cmd, data); if (error == ENETRESET) { /* * Multicast list has changed. Set the * hardware filter accordingly. */ uax_setmulti(sc); error = 0; } break; } /* Try to get more packets going. */ if (IFQ_IS_EMPTY(&ifp->if_snd) == 0) uax_start(ifp); splx(s); return (error); } Static void uax_watchdog(struct ifnet *ifp) { struct uax_softc *sc = ifp->if_softc; struct uax_chain *c; usbd_status stat; int s; DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->sc_dev), __func__)); ifp->if_oerrors++; printf("%s: watchdog timeout\n", USBDEVNAME(sc->sc_dev)); s = splusb(); c = &sc->sc_tx_chain[0]; usbd_get_xfer_status(c->uch_xfer, NULL, NULL, NULL, &stat); uax_txeof(c->uch_xfer, c, stat); if (IFQ_IS_EMPTY(&ifp->if_snd) == 0) uax_start(ifp); splx(s); } /* * Set media options. */ Static int uax_ifmedia_upd(struct ifnet *ifp) { struct uax_softc *sc = ifp->if_softc; struct mii_data *mii = GET_MII(sc); DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->sc_dev), __func__)); if (sc->sc_dying) return (0); sc->sc_link = 0; if (mii->mii_instance) { struct mii_softc *miisc; for (miisc = LIST_FIRST(&mii->mii_phys); miisc != NULL; miisc = LIST_NEXT(miisc, mii_list)) mii_phy_reset(miisc); } mii_mediachg(mii); return (0); } /* * Report current media status. */ Static void uax_ifmedia_sts(struct ifnet *ifp, struct ifmediareq *ifmr) { struct uax_softc *sc = ifp->if_softc; struct mii_data *mii = GET_MII(sc); DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->sc_dev), __func__)); mii_pollstat(mii); ifmr->ifm_active = mii->mii_media_active; ifmr->ifm_status = mii->mii_media_status; } Static int uax_miibus_readreg(device_ptr_t dev, int phy, int reg) { struct uax_softc *sc = USBGETSOFTC(dev); uWord val; usbd_status err; if (sc->sc_dying) return (0); /* We must limit the PHY address to avoid false hits. */ if (phy >= sc->sc_nphys) return (0); uax_grab_mii(sc); err = uax_request(sc, UT_READ_VENDOR_DEVICE, UAX_READ_MII_REG, phy, reg, sizeof val, &val); uax_ungrab_mii(sc); if (err) { DPRINTF(("%s: uax_miibus_readreg error=%s\n", USBDEVNAME(sc->sc_dev), usbd_errstr(err))); return (0); } DPRINTFN(4,("uax_miibus_readreg: phy=%d reg=0x%x data=0x%08x\n", phy, reg, UGETW(val))); return (UGETW(val)); } Static void uax_miibus_writereg(device_ptr_t dev, int phy, int reg, int data) { struct uax_softc *sc = USBGETSOFTC(dev); uWord val; usbd_status err; if (sc->sc_dying) return; uax_grab_mii(sc); err = uax_request(sc, UT_WRITE_VENDOR_DEVICE, UAX_WRITE_MII_REG, phy, reg, sizeof val, &val); uax_ungrab_mii(sc); if (err) { DPRINTF(("%s: uax_miibus_writereg error=%s\n", USBDEVNAME(sc->sc_dev), usbd_errstr(err))); } } Static void uax_miibus_statchg(device_ptr_t dev) { struct uax_softc *sc = USBGETSOFTC(dev); /*struct mii_data *mii = GET_MII(sc); uint val;*/ #if 0 usbd_status err; #endif DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->sc_dev), __func__)); if (sc->sc_dying) return; #if 0 if ((mii->mii_media_active & IFM_GMASK) == IFM_FDX) val = 0x02; else val = 0x00; err = uax_request(sc, UT_WRITE_VENDOR_DEVICE, UAX_WRITE_MEDIUM_STATUS, val, 0, 0, NULL); if (err) { DPRINTF(("%s: uax_miibus_statchg error=%s\n", USBDEVNAME(sc->sc_dev), usbd_errstr(err))); } #endif /* Nothing to do */ } Static int uax_send(struct uax_softc *sc, struct mbuf *m, int idx) { struct uax_chain *c; usbd_status err; DPRINTFN(10,("%s: %s: enter\n", USBDEVNAME(sc->sc_dev),__func__)); c = &sc->sc_tx_chain[idx]; /* Copy data to tx buffer. */ KASSERT(m->m_pkthdr.len <= UAX_BUFSZ); m_copydata(m, 0, m->m_pkthdr.len, c->uch_buf); c->uch_mbuf = m; /* XXX Should we zero tail of buffer for short packets? */ usbd_setup_xfer(c->uch_xfer, sc->sc_ep[UAX_ENDPT_TX], c, c->uch_buf, m->m_pkthdr.len, USBD_FORCE_SHORT_XFER | USBD_NO_COPY, UAX_TX_TIMEOUT, uax_txeof); DPRINTF(("%s: sending %d bytes\n", USBDEVNAME(sc->sc_dev), m->m_pkthdr.len)); /* Transmit */ err = usbd_transfer(c->uch_xfer); if (err != USBD_IN_PROGRESS) { printf("%s: uax_send error=%s\n", USBDEVNAME(sc->sc_dev), usbd_errstr(err)); /* Stop the interface from process context. */ usb_add_task(sc->sc_udev, &sc->sc_stop_task); return (EIO); } DPRINTFN(5,("%s: %s: send %d bytes\n", USBDEVNAME(sc->sc_dev), __func__, m->m_pkthdr.len)); sc->sc_tx_cnt++; return (0); } /* * A frame was downloaded to the chip. It's safe for us to clean up * the list buffers. */ Static void uax_txeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status) { struct uax_chain *c = priv; struct uax_softc *sc = c->uch_sc; struct ifnet *ifp = GET_IFP(sc); int s; if (sc->sc_dying) return; DPRINTF(("uax_txoef: frame sent\n")); s = splnet(); DPRINTFN(10,("%s: %s: enter status=%d\n", USBDEVNAME(sc->sc_dev), __func__, status)); ifp->if_timer = 0; ifp->if_flags &= ~IFF_OACTIVE; if (status != USBD_NORMAL_COMPLETION) { if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) { splx(s); return; } ifp->if_oerrors++; printf("%s: usb error on tx: %s\n", USBDEVNAME(sc->sc_dev), usbd_errstr(status)); if (status == USBD_STALLED) usbd_clear_endpoint_stall(sc->sc_ep[UAX_ENDPT_TX]); splx(s); return; } ifp->if_opackets++; m_freem(c->uch_mbuf); c->uch_mbuf = NULL; if (IFQ_IS_EMPTY(&ifp->if_snd) == 0) uax_start(ifp); splx(s); } Static void uax_start(struct ifnet *ifp) { struct uax_softc *sc = ifp->if_softc; struct mbuf *m_head = NULL; DPRINTFN(5,("%s: %s: enter, link=%d\n", USBDEVNAME(sc->sc_dev), __func__, sc->sc_link)); if (sc->sc_dying) return; if (!sc->sc_link) return; if (ifp->if_flags & IFF_OACTIVE) return; IFQ_POLL(&ifp->if_snd, m_head); if (m_head == NULL) return; if (uax_send(sc, m_head, 0)) { ifp->if_flags |= IFF_OACTIVE; return; } IFQ_DEQUEUE(&ifp->if_snd, m_head); #if NBPFILTER > 0 /* * If there's a BPF listener, bounce a copy of this frame * to him. */ if (ifp->if_bpf) BPF_MTAP(ifp, m_head); #endif ifp->if_flags |= IFF_OACTIVE; /* * Set a timeout in case the chip goes out to lunch. */ ifp->if_timer = 5; } Static void uax_stop_wrap(void *v) { uax_stop(v, 0); } Static void uax_stop(struct ifnet *ifp, int disable) { struct uax_softc *sc = ifp->if_softc; usbd_status err; int i; DPRINTFN(5,("%s: %s: enter disable=%d\n", USBDEVNAME(sc->sc_dev), __func__, disable)); ifp->if_timer = 0; /* XXX How do we stop the chip? */ sc->sc_packet_filter &= ~UAX_RX_ALTERNATE; (void)uax_request(sc, UT_WRITE_VENDOR_DEVICE, UAX_WRITE_RX_CTRL, sc->sc_packet_filter, 0, 0, NULL); /* XXX do more */ usb_uncallout(sc->sc_stat_ch, uax_tick, sc); /* Stop transfers. */ if (sc->sc_ep[UAX_ENDPT_RX] != NULL) { err = usbd_abort_pipe(sc->sc_ep[UAX_ENDPT_RX]); if (err) { printf("%s: abort rx pipe failed: %s\n", USBDEVNAME(sc->sc_dev), usbd_errstr(err)); } err = usbd_close_pipe(sc->sc_ep[UAX_ENDPT_RX]); if (err) { printf("%s: close rx pipe failed: %s\n", USBDEVNAME(sc->sc_dev), usbd_errstr(err)); } sc->sc_ep[UAX_ENDPT_RX] = NULL; } if (sc->sc_ep[UAX_ENDPT_TX] != NULL) { err = usbd_abort_pipe(sc->sc_ep[UAX_ENDPT_TX]); if (err) { printf("%s: abort tx pipe failed: %s\n", USBDEVNAME(sc->sc_dev), usbd_errstr(err)); } err = usbd_close_pipe(sc->sc_ep[UAX_ENDPT_TX]); if (err) { printf("%s: close tx pipe failed: %s\n", USBDEVNAME(sc->sc_dev), usbd_errstr(err)); } sc->sc_ep[UAX_ENDPT_TX] = NULL; } if (sc->sc_ep[UAX_ENDPT_INTR] != NULL) { err = usbd_abort_pipe(sc->sc_ep[UAX_ENDPT_INTR]); if (err) { printf("%s: abort intr pipe failed: %s\n", USBDEVNAME(sc->sc_dev), usbd_errstr(err)); } err = usbd_close_pipe(sc->sc_ep[UAX_ENDPT_INTR]); if (err) { printf("%s: close intr pipe failed: %s\n", USBDEVNAME(sc->sc_dev), usbd_errstr(err)); } sc->sc_ep[UAX_ENDPT_INTR] = NULL; } /* Free RX resources. */ for (i = 0; i < UAX_RX_LIST_CNT; i++) { if (sc->sc_rx_chain[i].uch_mbuf != NULL) { m_freem(sc->sc_rx_chain[i].uch_mbuf); sc->sc_rx_chain[i].uch_mbuf = NULL; } if (sc->sc_rx_chain[i].uch_xfer != NULL) { usbd_free_xfer(sc->sc_rx_chain[i].uch_xfer); sc->sc_rx_chain[i].uch_xfer = NULL; } } /* Free TX resources. */ for (i = 0; i < UAX_TX_LIST_CNT; i++) { if (sc->sc_tx_chain[i].uch_mbuf != NULL) { m_freem(sc->sc_tx_chain[i].uch_mbuf); sc->sc_tx_chain[i].uch_mbuf = NULL; } if (sc->sc_tx_chain[i].uch_xfer != NULL) { usbd_free_xfer(sc->sc_tx_chain[i].uch_xfer); sc->sc_tx_chain[i].uch_xfer = NULL; } } sc->sc_link = 0; ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); } /* * A frame has been uploaded: pass the resulting mbuf chain up to * the higher level protocols. */ Static void uax_rxeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status) { struct uax_chain *c = priv; struct uax_softc *sc = c->uch_sc; struct ifnet *ifp = GET_IFP(sc); struct mbuf *m; u_int32_t total_len; int s; DPRINTFN(10,("%s: %s: enter\n", USBDEVNAME(sc->sc_dev), __func__)); if (sc->sc_dying) return; if (!(ifp->if_flags & IFF_RUNNING)) return; if (status != USBD_NORMAL_COMPLETION) { if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) return; sc->sc_rx_errs++; if (usbd_ratecheck(&sc->sc_rx_notice)) { printf("%s: %u usb errors on rx: %s\n", USBDEVNAME(sc->sc_dev), sc->sc_rx_errs, usbd_errstr(status)); sc->sc_rx_errs = 0; } if (status == USBD_STALLED) usbd_clear_endpoint_stall(sc->sc_ep[UAX_ENDPT_RX]); goto done; } usbd_get_xfer_status(xfer, NULL, NULL, &total_len, NULL); DPRINTF(("%s: got %d bytes\n", USBDEVNAME(sc->sc_dev), total_len)); memcpy(mtod(c->uch_mbuf, char *), c->uch_buf, total_len); if (total_len == 0) { ifp->if_ierrors++; goto done; } /* No errors; receive the packet. */ m = c->uch_mbuf; m->m_pkthdr.len = m->m_len = total_len; ifp->if_ipackets++; m->m_pkthdr.rcvif = ifp; s = splnet(); /* XXX ugly */ if (uax_newbuf(sc, c, NULL) == ENOBUFS) { ifp->if_ierrors++; goto done1; } #if NBPFILTER > 0 /* * Handle BPF listeners. Let the BPF user see the packet, but * don't pass it up to the ether_input() layer unless it's * a broadcast packet, multicast packet, matches our ethernet * address or the interface is in promiscuous mode. */ if (ifp->if_bpf) BPF_MTAP(ifp, m); #endif DPRINTFN(10,("%s: %s: deliver %d\n", USBDEVNAME(sc->sc_dev), __func__, m->m_len)); IF_INPUT(ifp, m); done1: splx(s); done: /* Setup new transfer. */ usbd_setup_xfer(xfer, sc->sc_ep[UAX_ENDPT_RX], c, c->uch_buf, UAX_BUFSZ, USBD_SHORT_XFER_OK | USBD_NO_COPY, USBD_NO_TIMEOUT, uax_rxeof); usbd_transfer(xfer); DPRINTFN(10,("%s: %s: start rx\n", USBDEVNAME(sc->sc_dev), __func__)); } /* * Initialize an RX descriptor and attach an MBUF cluster. */ Static int uax_newbuf(struct uax_softc *sc, struct uax_chain *c, struct mbuf *m) { struct mbuf *m_new = NULL; DPRINTFN(10,("%s: %s: enter\n", USBDEVNAME(sc->sc_dev),__func__)); if (m == NULL) { MGETHDR(m_new, M_DONTWAIT, MT_DATA); if (m_new == NULL) { printf("%s: no memory for rx list " "-- packet dropped!\n", USBDEVNAME(sc->sc_dev)); return (ENOBUFS); } MCLGET(m_new, M_DONTWAIT); if (!(m_new->m_flags & M_EXT)) { printf("%s: no memory for rx list " "-- packet dropped!\n", USBDEVNAME(sc->sc_dev)); m_freem(m_new); return (ENOBUFS); } m_new->m_len = m_new->m_pkthdr.len = MCLBYTES; } else { m_new = m; m_new->m_len = m_new->m_pkthdr.len = MCLBYTES; m_new->m_data = m_new->m_ext.ext_buf; } m_adj(m_new, ETHER_ALIGN); c->uch_mbuf = m_new; return (0); } Static int uax_rx_list_init(struct uax_softc *sc) { struct uax_chain *c; int i; DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->sc_dev), __func__)); for (i = 0; i < UAX_RX_LIST_CNT; i++) { c = &sc->sc_rx_chain[i]; c->uch_sc = sc; c->uch_idx = i; if (uax_newbuf(sc, c, NULL) == ENOBUFS) return (ENOBUFS); if (c->uch_xfer == NULL) { c->uch_xfer = usbd_alloc_xfer(sc->sc_udev); if (c->uch_xfer == NULL) return (ENOBUFS); c->uch_buf = usbd_alloc_buffer(c->uch_xfer, UAX_BUFSZ); if (c->uch_buf == NULL) { usbd_free_xfer(c->uch_xfer); c->uch_xfer = NULL; return (ENOBUFS); } } } return (0); } Static int uax_tx_list_init(struct uax_softc *sc) { struct uax_chain *c; int i; DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->sc_dev), __func__)); for (i = 0; i < UAX_TX_LIST_CNT; i++) { c = &sc->sc_tx_chain[i]; c->uch_sc = sc; c->uch_idx = i; c->uch_mbuf = NULL; if (c->uch_xfer == NULL) { c->uch_xfer = usbd_alloc_xfer(sc->sc_udev); if (c->uch_xfer == NULL) return (ENOBUFS); c->uch_buf = usbd_alloc_buffer(c->uch_xfer, UAX_BUFSZ); if (c->uch_buf == NULL) { usbd_free_xfer(c->uch_xfer); c->uch_xfer = NULL; return (ENOBUFS); } } } return (0); } Static int uax_init(struct ifnet *ifp) { struct uax_softc *sc = ifp->if_softc; DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->sc_dev), __func__)); if (sc->sc_dying) return (EIO); uax_stop(ifp, 0); /* Load the multicast filter. */ uax_setmulti(sc); /* Init TX ring. */ if (uax_tx_list_init(sc) == ENOBUFS) { printf("%s: tx list init failed\n", USBDEVNAME(sc->sc_dev)); return (EIO); } /* Init RX ring. */ if (uax_rx_list_init(sc) == ENOBUFS) { printf("%s: rx list init failed\n", USBDEVNAME(sc->sc_dev)); return (EIO); } if (sc->sc_ep[UAX_ENDPT_RX] == NULL) { if (uax_openpipes(sc)) { return (EIO); } } ifp->if_flags |= IFF_RUNNING; ifp->if_flags &= ~IFF_OACTIVE; usb_callout(sc->sc_stat_ch, hz, uax_tick, sc); sc->sc_packet_filter |= UAX_RX_ALTERNATE; (void)uax_request(sc, UT_WRITE_VENDOR_DEVICE, UAX_WRITE_RX_CTRL, sc->sc_packet_filter, 0, 0, NULL); return (0); } Static void uax_tick(void *xsc) { struct uax_softc *sc = xsc; DPRINTFN(15,("%s: %s: enter\n", USBDEVNAME(sc->sc_dev),__func__)); if (sc == NULL) return; if (sc->sc_dying) return; /* Perform periodic stuff in process context. */ usb_add_task(sc->sc_udev, &sc->sc_tick_task); } Static void uax_tick_task(void *xsc) { struct uax_softc *sc = xsc; struct ifnet *ifp; struct mii_data *mii; int s; DPRINTFN(15,("%s: %s: enter\n", USBDEVNAME(sc->sc_dev),__func__)); if (sc->sc_dying) return; ifp = GET_IFP(sc); mii = GET_MII(sc); if (mii == NULL) return; s = splnet(); mii_tick(mii); if (!sc->sc_link) { mii_pollstat(mii); /* XXX FreeBSD has removed this call */ if (mii->mii_media_status & IFM_ACTIVE && IFM_SUBTYPE(mii->mii_media_active) != IFM_NONE) { DPRINTFN(2,("%s: %s: got link\n", USBDEVNAME(sc->sc_dev),__func__)); sc->sc_link++; if (IFQ_IS_EMPTY(&ifp->if_snd) == 0) uax_start(ifp); } } usb_callout(sc->sc_stat_ch, hz, uax_tick, sc); splx(s); } Static int uax_openpipes(struct uax_softc *sc) { struct uax_chain *c; usbd_status err; int i; /* Open RX and TX pipes. */ err = usbd_open_pipe(sc->sc_iface, sc->sc_ed[UAX_ENDPT_RX], USBD_EXCLUSIVE_USE, &sc->sc_ep[UAX_ENDPT_RX]); if (err) { printf("%s: open rx pipe failed: %s\n", USBDEVNAME(sc->sc_dev), usbd_errstr(err)); return (EIO); } err = usbd_open_pipe(sc->sc_iface, sc->sc_ed[UAX_ENDPT_TX], USBD_EXCLUSIVE_USE, &sc->sc_ep[UAX_ENDPT_TX]); if (err) { printf("%s: open tx pipe failed: %s\n", USBDEVNAME(sc->sc_dev), usbd_errstr(err)); return (EIO); } err = usbd_open_pipe_intr(sc->sc_iface, sc->sc_ed[UAX_ENDPT_INTR], USBD_EXCLUSIVE_USE, &sc->sc_ep[UAX_ENDPT_INTR], sc, &sc->sc_ibuf, UAX_INTR_PKTLEN, uax_intr, UAX_INTR_INTERVAL); if (err) { printf("%s: open intr pipe failed: %s\n", USBDEVNAME(sc->sc_dev), usbd_errstr(err)); return (EIO); } /* Start up the receive pipe. */ for (i = 0; i < UAX_RX_LIST_CNT; i++) { c = &sc->sc_rx_chain[i]; usbd_setup_xfer(c->uch_xfer, sc->sc_ep[UAX_ENDPT_RX], c, c->uch_buf, UAX_BUFSZ, USBD_SHORT_XFER_OK | USBD_NO_COPY, USBD_NO_TIMEOUT, uax_rxeof); (void)usbd_transfer(c->uch_xfer); /* XXX */ DPRINTFN(5,("%s: %s: start read\n", USBDEVNAME(sc->sc_dev), __func__)); } return (0); } Static void uax_intr(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status) { struct uax_softc *sc = priv; struct ifnet *ifp = GET_IFP(sc); /*struct uax_intrpkt *p = &sc->sc_ibuf;*/ DPRINTFN(15,("%s: %s: enter\n", USBDEVNAME(sc->sc_dev),__func__)); if (sc->sc_dying) return; if (!(ifp->if_flags & IFF_RUNNING)) return; if (status != USBD_NORMAL_COMPLETION) { if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) { return; } sc->sc_intr_errs++; if (usbd_ratecheck(&sc->sc_rx_notice)) { printf("%s: %u usb errors on intr: %s\n", USBDEVNAME(sc->sc_dev), sc->sc_intr_errs, usbd_errstr(status)); sc->sc_intr_errs = 0; } if (status == USBD_STALLED) usbd_clear_endpoint_stall(sc->sc_ep[UAX_ENDPT_RX]); return; } } /* Polynomial calculation taken from the Windows driver. */ Static u_int32_t uax_crc(u_int8_t *eaddr) { u_int32_t crc32; u_int8_t byte, carry; int i, j; crc32 = 0xffffffff; for (i = 0; i < ETHER_ADDR_LEN; i++) { byte = eaddr[i]; for (j = 0; j < 8; j++) { carry = byte & 1; if (crc32 & 0x80000000) carry ^= 1; crc32 <<= 1; byte >>= 1; if (carry) crc32 ^= 0x04c11db7; } } return (crc32); } Static void uax_setmulti(struct uax_softc *sc) { struct ifnet *ifp; struct ether_multi *enm; struct ether_multistep step; u_int32_t h; int nmcast; DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->sc_dev), __func__)); ifp = GET_IFP(sc); sc->sc_packet_filter &= ~(UAX_RX_PROMISCUOUS | UAX_RX_ALL_MULTICAST | UAX_RX_MULTICAST); if (ifp->if_flags & IFF_PROMISC) { sc->sc_packet_filter |= UAX_RX_PROMISCUOUS; } else { ifp->if_flags &= ~IFF_ALLMULTI; memset(sc->sc_mcast, 0, sizeof sc->sc_mcast); nmcast = 0; ETHER_FIRST_MULTI(step, &sc->sc_ec, enm); while (enm != NULL) { if (memcmp(enm->enm_addrlo, enm->enm_addrhi, ETHER_ADDR_LEN) != 0) { ifp->if_flags |= IFF_ALLMULTI; sc->sc_packet_filter |= UAX_RX_ALL_MULTICAST; nmcast = 0; break; } h = (uax_crc(enm->enm_addrlo) >> 26) & 0x3f; sc->sc_mcast[h / 8] |= 1 << (h % 8); ETHER_NEXT_MULTI(step, enm); nmcast++; } if (nmcast > 0) sc->sc_packet_filter |= UAX_RX_MULTICAST; } /* Set the multicast filter. */ (void)uax_request(sc, UT_WRITE_VENDOR_DEVICE, UAX_WRITE_MULTI_FILTER, 0, 0, sizeof sc->sc_mcast, &sc->sc_mcast); /* And tell the chip which mode we want. */ (void)uax_request(sc, UT_WRITE_VENDOR_DEVICE, UAX_WRITE_RX_CTRL, sc->sc_packet_filter, 0, 0, NULL); }