/* $OpenBSD: if_mos.c,v 1.37 2016/11/06 12:58:01 mpi Exp $ */ /* * 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. */ /* * Moschip MCS7730/MCS7830/MCS7832 USB to Ethernet controller * The datasheet is available at the following URL: * http://www.moschip.com/data/products/MCS7830/Data%20Sheet_7830.pdf */ #include "bpfilter.h" #include #include #include #include #include #include #include #include #include #include #include #if NBPFILTER > 0 #include #endif #include #include #include #include #include #include #include #include #include #ifdef MOS_DEBUG #define DPRINTF(x) do { if (mosdebug) printf x; } while (0) #define DPRINTFN(n,x) do { if (mosdebug >= (n)) printf x; } while (0) int mosdebug = 0; #else #define DPRINTF(x) #define DPRINTFN(n,x) #endif /* * Various supported device vendors/products. */ const struct mos_type mos_devs[] = { { { USB_VENDOR_MOSCHIP, USB_PRODUCT_MOSCHIP_MCS7730 }, MCS7730 }, { { USB_VENDOR_MOSCHIP, USB_PRODUCT_MOSCHIP_MCS7830 }, MCS7830 }, { { USB_VENDOR_MOSCHIP, USB_PRODUCT_MOSCHIP_MCS7832 }, MCS7832 }, { { USB_VENDOR_SITECOMEU, USB_PRODUCT_SITECOMEU_LN030 }, MCS7830 }, }; #define mos_lookup(v, p) ((struct mos_type *)usb_lookup(mos_devs, v, p)) int mos_match(struct device *, void *, void *); void mos_attach(struct device *, struct device *, void *); int mos_detach(struct device *, int); struct cfdriver mos_cd = { NULL, "mos", DV_IFNET }; const struct cfattach mos_ca = { sizeof(struct mos_softc), mos_match, mos_attach, mos_detach }; int mos_tx_list_init(struct mos_softc *); int mos_rx_list_init(struct mos_softc *); struct mbuf *mos_newbuf(void); int mos_encap(struct mos_softc *, struct mbuf *, int); void mos_rxeof(struct usbd_xfer *, void *, usbd_status); void mos_txeof(struct usbd_xfer *, void *, usbd_status); void mos_tick(void *); void mos_tick_task(void *); void mos_start(struct ifnet *); int mos_ioctl(struct ifnet *, u_long, caddr_t); void mos_init(void *); void mos_chip_init(struct mos_softc *); void mos_stop(struct mos_softc *); void mos_watchdog(struct ifnet *); int mos_miibus_readreg(struct device *, int, int); void mos_miibus_writereg(struct device *, int, int, int); void mos_miibus_statchg(struct device *); int mos_ifmedia_upd(struct ifnet *); void mos_ifmedia_sts(struct ifnet *, struct ifmediareq *); void mos_reset(struct mos_softc *sc); int mos_reg_read_1(struct mos_softc *, int); int mos_reg_read_2(struct mos_softc *, int); int mos_reg_write_1(struct mos_softc *, int, int); int mos_reg_write_2(struct mos_softc *, int, int); int mos_readmac(struct mos_softc *, u_char *); int mos_writemac(struct mos_softc *, u_char *); int mos_write_mcast(struct mos_softc *, u_char *); void mos_iff(struct mos_softc *); void mos_lock_mii(struct mos_softc *); void mos_unlock_mii(struct mos_softc *); /* * Get exclusive access to the MII registers */ void mos_lock_mii(struct mos_softc *sc) { sc->mos_refcnt++; rw_enter_write(&sc->mos_mii_lock); } void mos_unlock_mii(struct mos_softc *sc) { rw_exit_write(&sc->mos_mii_lock); if (--sc->mos_refcnt < 0) usb_detach_wakeup(&sc->mos_dev); } int mos_reg_read_1(struct mos_softc *sc, int reg) { usb_device_request_t req; usbd_status err; uByte val = 0; if (usbd_is_dying(sc->mos_udev)) return(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 = usbd_do_request(sc->mos_udev, &req, &val); if (err) { DPRINTF(("mos_reg_read_1 error, reg: %d\n", reg)); return (-1); } return (val); } int mos_reg_read_2(struct mos_softc *sc, int reg) { usb_device_request_t req; usbd_status err; uWord val; USETW(val,0); if (usbd_is_dying(sc->mos_udev)) return(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 = usbd_do_request(sc->mos_udev, &req, &val); if (err) { DPRINTF(("mos_reg_read_2 error, reg: %d\n", reg)); return (-1); } return(UGETW(val)); } int mos_reg_write_1(struct mos_softc *sc, int reg, int aval) { usb_device_request_t req; usbd_status err; uByte val; val = aval; if (usbd_is_dying(sc->mos_udev)) return(0); req.bmRequestType = UT_WRITE_VENDOR_DEVICE; req.bRequest = MOS_UR_WRITEREG; USETW(req.wValue, 0); USETW(req.wIndex, reg); USETW(req.wLength, 1); err = usbd_do_request(sc->mos_udev, &req, &val); if (err) { DPRINTF(("mos_reg_write_1 error, reg: %d\n", reg)); return (-1); } return(0); } int mos_reg_write_2(struct mos_softc *sc, int reg, int aval) { usb_device_request_t req; usbd_status err; uWord val; USETW(val, aval); if (usbd_is_dying(sc->mos_udev)) return (0); req.bmRequestType = UT_WRITE_VENDOR_DEVICE; req.bRequest = MOS_UR_WRITEREG; USETW(req.wValue, 0); USETW(req.wIndex, reg); USETW(req.wLength, 2); err = usbd_do_request(sc->mos_udev, &req, &val); if (err) { DPRINTF(("mos_reg_write_2 error, reg: %d\n", reg)); return (-1); } return (0); } int mos_readmac(struct mos_softc *sc, u_char *mac) { usb_device_request_t req; usbd_status err; if (usbd_is_dying(sc->mos_udev)) return(0); 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 = usbd_do_request(sc->mos_udev, &req, mac); if (err) { DPRINTF(("mos_readmac error")); return (-1); } return (0); } int mos_writemac(struct mos_softc *sc, u_char *mac) { usb_device_request_t req; usbd_status err; if (usbd_is_dying(sc->mos_udev)) return(0); 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 = usbd_do_request(sc->mos_udev, &req, mac); if (err) { DPRINTF(("mos_writemac error")); return (-1); } return (0); } int mos_write_mcast(struct mos_softc *sc, u_char *hashtbl) { usb_device_request_t req; usbd_status err; if (usbd_is_dying(sc->mos_udev)) return(0); 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 = usbd_do_request(sc->mos_udev, &req, hashtbl); if (err) { DPRINTF(("mos_reg_mcast error\n")); return(-1); } return(0); } int mos_miibus_readreg(struct device *dev, int phy, int reg) { struct mos_softc *sc = (void *)dev; uWord val; int i,res; if (usbd_is_dying(sc->mos_udev)) { DPRINTF(("mos: dying\n")); return (0); } USETW(val, 0); mos_lock_mii(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) { printf("%s: MII read timeout\n", sc->mos_dev.dv_xname); } res = mos_reg_read_2(sc, MOS_PHY_DATA); mos_unlock_mii(sc); return (res); } void mos_miibus_writereg(struct device *dev, int phy, int reg, int val) { struct mos_softc *sc = (void *)dev; int i; if (usbd_is_dying(sc->mos_udev)) return; mos_lock_mii(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) { printf("%s: MII write timeout\n", sc->mos_dev.dv_xname); } mos_unlock_mii(sc); return; } void mos_miibus_statchg(struct device *dev) { struct mos_softc *sc = (void *)dev; struct mii_data *mii = GET_MII(sc); int val, err; mos_lock_mii(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); mos_unlock_mii(sc); if (err) { printf("%s: media change failed\n", sc->mos_dev.dv_xname); return; } } /* * Set media options. */ int mos_ifmedia_upd(struct ifnet *ifp) { struct mos_softc *sc = ifp->if_softc; struct mii_data *mii = GET_MII(sc); sc->mos_link = 0; if (mii->mii_instance) { struct mii_softc *miisc; LIST_FOREACH(miisc, &mii->mii_phys, mii_list) mii_phy_reset(miisc); } mii_mediachg(mii); return (0); } /* * Report current media status. */ void mos_ifmedia_sts(struct ifnet *ifp, struct ifmediareq *ifmr) { struct mos_softc *sc = ifp->if_softc; struct mii_data *mii = GET_MII(sc); mii_pollstat(mii); ifmr->ifm_active = mii->mii_media_active; ifmr->ifm_status = mii->mii_media_status; } void mos_iff(struct mos_softc *sc) { struct ifnet *ifp = GET_IFP(sc); struct arpcom *ac = &sc->arpcom; struct ether_multi *enm; struct ether_multistep step; u_int32_t h = 0; u_int8_t rxmode, hashtbl[8] = { 0, 0, 0, 0, 0, 0, 0, 0 }; if (usbd_is_dying(sc->mos_udev)) return; rxmode = mos_reg_read_1(sc, MOS_CTL); rxmode &= ~(MOS_CTL_ALLMULTI | MOS_CTL_RX_PROMISC); ifp->if_flags &= ~IFF_ALLMULTI; if (ifp->if_flags & IFF_PROMISC || ac->ac_multirangecnt > 0) { ifp->if_flags |= IFF_ALLMULTI; rxmode |= MOS_CTL_ALLMULTI; if (ifp->if_flags & IFF_PROMISC) rxmode |= MOS_CTL_RX_PROMISC; } else { /* now program new ones */ ETHER_FIRST_MULTI(step, ac, enm); while (enm != NULL) { h = ether_crc32_be(enm->enm_addrlo, ETHER_ADDR_LEN) >> 26; hashtbl[h / 8] |= 1 << (h % 8); ETHER_NEXT_MULTI(step, enm); } } /* * The datasheet claims broadcast frames were always accepted * regardless of filter settings. But the hardware seems to * filter broadcast frames, so pass them explicitly. */ h = ether_crc32_be(etherbroadcastaddr, ETHER_ADDR_LEN) >> 26; hashtbl[h / 8] |= 1 << (h % 8); mos_write_mcast(sc, (void *)&hashtbl); mos_reg_write_1(sc, MOS_CTL, rxmode); } void mos_reset(struct mos_softc *sc) { u_int8_t ctl; if (usbd_is_dying(sc->mos_udev)) return; 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; } 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;imos_phyaddrs[0] = 1; sc->mos_phyaddrs[1] = 0xFF; } /* * Probe for a MCS7x30 chip. */ int mos_match(struct device *parent, void *match, void *aux) { struct usb_attach_arg *uaa = aux; if (uaa->iface == NULL || uaa->configno != MOS_CONFIG_NO) return(UMATCH_NONE); return (mos_lookup(uaa->vendor, uaa->product) != NULL ? UMATCH_VENDOR_PRODUCT : UMATCH_NONE); } /* * Attach the interface. Allocate softc structures, do ifmedia * setup and ethernet/BPF attach. */ void mos_attach(struct device *parent, struct device *self, void *aux) { struct mos_softc *sc = (struct mos_softc *)self; struct usb_attach_arg *uaa = aux; struct ifnet *ifp; struct usbd_device *dev = uaa->device; usbd_status err; usb_interface_descriptor_t *id; usb_endpoint_descriptor_t *ed; struct mii_data *mii; u_char eaddr[ETHER_ADDR_LEN]; int i,s; sc->mos_udev = dev; sc->mos_unit = self->dv_unit; usb_init_task(&sc->mos_tick_task, mos_tick_task, sc, USB_TASK_TYPE_GENERIC); rw_init(&sc->mos_mii_lock, "mosmii"); usb_init_task(&sc->mos_stop_task, (void (*)(void *))mos_stop, sc, USB_TASK_TYPE_GENERIC); err = usbd_device2interface_handle(dev, MOS_IFACE_IDX, &sc->mos_iface); if (err) { printf("%s: getting interface handle failed\n", sc->mos_dev.dv_xname); return; } sc->mos_flags = mos_lookup(uaa->vendor, uaa->product)->mos_flags; id = usbd_get_interface_descriptor(sc->mos_iface); sc->mos_bufsz = MOS_BUFSZ; /* Find endpoints. */ for (i = 0; i < id->bNumEndpoints; i++) { ed = usbd_interface2endpoint_descriptor(sc->mos_iface, i); if (!ed) { printf("%s: couldn't get ep %d\n", sc->mos_dev.dv_xname, i); return; } if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { sc->mos_ed[MOS_ENDPT_RX] = ed->bEndpointAddress; } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT && UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { sc->mos_ed[MOS_ENDPT_TX] = ed->bEndpointAddress; } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && UE_GET_XFERTYPE(ed->bmAttributes) == UE_INTERRUPT) { sc->mos_ed[MOS_ENDPT_INTR] = ed->bEndpointAddress; } } s = splnet(); printf("%s:", sc->mos_dev.dv_xname); if (sc->mos_flags & MCS7730) printf(" MCS7730"); else if (sc->mos_flags & MCS7830) printf(" MCS7830"); else if (sc->mos_flags & MCS7832) printf(" MCS7832"); mos_chip_init(sc); /* * Read MAC address, inform the world. */ err = mos_readmac(sc, (void*)&eaddr); if (err) { printf("%s: couldn't get MAC address\n", sc->mos_dev.dv_xname); splx(s); return; } bcopy(eaddr, (char *)&sc->arpcom.ac_enaddr, ETHER_ADDR_LEN); printf(", address %s\n", ether_sprintf(eaddr)); /* Initialize interface info.*/ ifp = GET_IFP(sc); ifp->if_softc = sc; ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; ifp->if_ioctl = mos_ioctl; ifp->if_start = mos_start; ifp->if_watchdog = mos_watchdog; strlcpy(ifp->if_xname, sc->mos_dev.dv_xname, IFNAMSIZ); ifp->if_capabilities = IFCAP_VLAN_MTU; /* Initialize MII/media info. */ mii = GET_MII(sc); mii->mii_ifp = ifp; mii->mii_readreg = mos_miibus_readreg; mii->mii_writereg = mos_miibus_writereg; mii->mii_statchg = mos_miibus_statchg; mii->mii_flags = MIIF_AUTOTSLEEP; ifmedia_init(&mii->mii_media, 0, mos_ifmedia_upd, mos_ifmedia_sts); mii_attach(self, mii, 0xffffffff, MII_PHY_ANY, MII_OFFSET_ANY, 0); 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); timeout_set(&sc->mos_stat_ch, mos_tick, sc); splx(s); } int mos_detach(struct device *self, int flags) { struct mos_softc *sc = (struct mos_softc *)self; struct ifnet *ifp = GET_IFP(sc); int s; DPRINTFN(2,("%s: %s: enter\n", sc->mos_dev.dv_xname, __func__)); if (timeout_initialized(&sc->mos_stat_ch)) timeout_del(&sc->mos_stat_ch); if (sc->mos_ep[MOS_ENDPT_TX] != NULL) usbd_abort_pipe(sc->mos_ep[MOS_ENDPT_TX]); if (sc->mos_ep[MOS_ENDPT_RX] != NULL) usbd_abort_pipe(sc->mos_ep[MOS_ENDPT_RX]); if (sc->mos_ep[MOS_ENDPT_INTR] != NULL) usbd_abort_pipe(sc->mos_ep[MOS_ENDPT_INTR]); /* * Remove any pending tasks. They cannot be executing because they run * in the same thread as detach. */ usb_rem_task(sc->mos_udev, &sc->mos_tick_task); usb_rem_task(sc->mos_udev, &sc->mos_stop_task); s = splusb(); if (--sc->mos_refcnt >= 0) { /* Wait for processes to go away */ usb_detach_wait(&sc->mos_dev); } if (ifp->if_flags & IFF_RUNNING) mos_stop(sc); mii_detach(&sc->mos_mii, MII_PHY_ANY, MII_OFFSET_ANY); ifmedia_delete_instance(&sc->mos_mii.mii_media, IFM_INST_ANY); if (ifp->if_softc != NULL) { ether_ifdetach(ifp); if_detach(ifp); } #ifdef DIAGNOSTIC if (sc->mos_ep[MOS_ENDPT_TX] != NULL || sc->mos_ep[MOS_ENDPT_RX] != NULL || sc->mos_ep[MOS_ENDPT_INTR] != NULL) printf("%s: detach has active endpoints\n", sc->mos_dev.dv_xname); #endif if (--sc->mos_refcnt >= 0) { /* Wait for processes to go away. */ usb_detach_wait(&sc->mos_dev); } splx(s); return (0); } struct mbuf * mos_newbuf(void) { struct mbuf *m; MGETHDR(m, M_DONTWAIT, MT_DATA); if (m == NULL) return (NULL); MCLGET(m, M_DONTWAIT); if (!(m->m_flags & M_EXT)) { m_freem(m); return (NULL); } m->m_len = m->m_pkthdr.len = MCLBYTES; m_adj(m, ETHER_ALIGN); return (m); } int mos_rx_list_init(struct mos_softc *sc) { struct mos_cdata *cd; struct mos_chain *c; int i; DPRINTF(("%s: %s: enter\n", sc->mos_dev.dv_xname, __func__)); cd = &sc->mos_cdata; for (i = 0; i < MOS_RX_LIST_CNT; i++) { c = &cd->mos_rx_chain[i]; c->mos_sc = sc; c->mos_idx = i; c->mos_mbuf = NULL; if (c->mos_xfer == NULL) { c->mos_xfer = usbd_alloc_xfer(sc->mos_udev); if (c->mos_xfer == NULL) return (ENOBUFS); c->mos_buf = usbd_alloc_buffer(c->mos_xfer, sc->mos_bufsz); if (c->mos_buf == NULL) { usbd_free_xfer(c->mos_xfer); return (ENOBUFS); } } } return (0); } int mos_tx_list_init(struct mos_softc *sc) { struct mos_cdata *cd; struct mos_chain *c; int i; DPRINTF(("%s: %s: enter\n", sc->mos_dev.dv_xname, __func__)); cd = &sc->mos_cdata; for (i = 0; i < MOS_TX_LIST_CNT; i++) { c = &cd->mos_tx_chain[i]; c->mos_sc = sc; c->mos_idx = i; c->mos_mbuf = NULL; if (c->mos_xfer == NULL) { c->mos_xfer = usbd_alloc_xfer(sc->mos_udev); if (c->mos_xfer == NULL) return (ENOBUFS); c->mos_buf = usbd_alloc_buffer(c->mos_xfer, sc->mos_bufsz); if (c->mos_buf == NULL) { usbd_free_xfer(c->mos_xfer); return (ENOBUFS); } } } return (0); } /* * A frame has been uploaded: pass the resulting mbuf chain up to * the higher level protocols. */ void mos_rxeof(struct usbd_xfer *xfer, void *priv, usbd_status status) { struct mos_chain *c = (struct mos_chain *)priv; struct mos_softc *sc = c->mos_sc; struct ifnet *ifp = GET_IFP(sc); u_char *buf = c->mos_buf; u_int8_t rxstat; u_int32_t total_len; u_int16_t pktlen = 0; struct mbuf_list ml = MBUF_LIST_INITIALIZER(); struct mbuf *m; int s; DPRINTFN(10,("%s: %s: enter\n", sc->mos_dev.dv_xname,__func__)); if (usbd_is_dying(sc->mos_udev)) return; if (!(ifp->if_flags & IFF_RUNNING)) return; if (status != USBD_NORMAL_COMPLETION) { if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) return; if (usbd_ratecheck(&sc->mos_rx_notice)) { printf("%s: usb errors on rx: %s\n", sc->mos_dev.dv_xname, usbd_errstr(status)); } if (status == USBD_STALLED) usbd_clear_endpoint_stall_async(sc->mos_ep[MOS_ENDPT_RX]); goto done; } usbd_get_xfer_status(xfer, NULL, NULL, &total_len, NULL); if (total_len <= 1) goto done; /* evaluate status byte at the end */ pktlen = total_len - 1; rxstat = buf[pktlen] & MOS_RXSTS_MASK; if (rxstat != MOS_RXSTS_VALID) { DPRINTF(("%s: erroneous frame received: ", sc->mos_dev.dv_xname)); if (rxstat & MOS_RXSTS_SHORT_FRAME) DPRINTF(("frame size less than 64 bytes\n")); if (rxstat & MOS_RXSTS_LARGE_FRAME) DPRINTF(("frame size larger than 1532 bytes\n")); if (rxstat & MOS_RXSTS_CRC_ERROR) DPRINTF(("CRC error\n")); if (rxstat & MOS_RXSTS_ALIGN_ERROR) DPRINTF(("alignment error\n")); ifp->if_ierrors++; goto done; } if ( pktlen < sizeof(struct ether_header) ) { ifp->if_ierrors++; goto done; } m = mos_newbuf(); if (m == NULL) { ifp->if_ierrors++; goto done; } m->m_pkthdr.len = m->m_len = pktlen; memcpy(mtod(m, char *), buf, pktlen); ml_enqueue(&ml, m); s = splnet(); if_input(ifp, &ml); splx(s); done: memset(c->mos_buf, 0, sc->mos_bufsz); /* Setup new transfer. */ usbd_setup_xfer(xfer, sc->mos_ep[MOS_ENDPT_RX], c, c->mos_buf, sc->mos_bufsz, USBD_SHORT_XFER_OK | USBD_NO_COPY, USBD_NO_TIMEOUT, mos_rxeof); usbd_transfer(xfer); DPRINTFN(10,("%s: %s: start rx\n", sc->mos_dev.dv_xname, __func__)); return; } /* * A frame was downloaded to the chip. It's safe for us to clean up * the list buffers. */ void mos_txeof(struct usbd_xfer *xfer, void *priv, usbd_status status) { struct mos_softc *sc; struct mos_chain *c; struct ifnet *ifp; int s; c = priv; sc = c->mos_sc; ifp = &sc->arpcom.ac_if; if (usbd_is_dying(sc->mos_udev)) return; s = splnet(); 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", sc->mos_dev.dv_xname, usbd_errstr(status)); if (status == USBD_STALLED) usbd_clear_endpoint_stall_async(sc->mos_ep[MOS_ENDPT_TX]); splx(s); return; } ifp->if_timer = 0; ifq_clr_oactive(&ifp->if_snd); m_freem(c->mos_mbuf); c->mos_mbuf = NULL; if (IFQ_IS_EMPTY(&ifp->if_snd) == 0) mos_start(ifp); ifp->if_opackets++; splx(s); return; } void mos_tick(void *xsc) { struct mos_softc *sc = xsc; if (sc == NULL) return; DPRINTFN(0xff, ("%s: %s: enter\n", sc->mos_dev.dv_xname, __func__)); if (usbd_is_dying(sc->mos_udev)) return; /* Perform periodic stuff in process context */ usb_add_task(sc->mos_udev, &sc->mos_tick_task); } void mos_tick_task(void *xsc) { int s; struct mos_softc *sc; struct ifnet *ifp; struct mii_data *mii; sc = xsc; if (sc == NULL) return; if (usbd_is_dying(sc->mos_udev)) return; ifp = GET_IFP(sc); mii = GET_MII(sc); if (mii == NULL) return; s = splnet(); mii_tick(mii); if (!sc->mos_link && mii->mii_media_status & IFM_ACTIVE && IFM_SUBTYPE(mii->mii_media_active) != IFM_NONE) { DPRINTF(("%s: %s: got link\n", sc->mos_dev.dv_xname, __func__)); sc->mos_link++; if (IFQ_IS_EMPTY(&ifp->if_snd) == 0) mos_start(ifp); } timeout_add_sec(&sc->mos_stat_ch, 1); splx(s); } int mos_encap(struct mos_softc *sc, struct mbuf *m, int idx) { struct mos_chain *c; usbd_status err; int length; c = &sc->mos_cdata.mos_tx_chain[idx]; m_copydata(m, 0, m->m_pkthdr.len, c->mos_buf); length = m->m_pkthdr.len; c->mos_mbuf = m; usbd_setup_xfer(c->mos_xfer, sc->mos_ep[MOS_ENDPT_TX], c, c->mos_buf, length, USBD_FORCE_SHORT_XFER | USBD_NO_COPY, 10000, mos_txeof); /* Transmit */ err = usbd_transfer(c->mos_xfer); if (err != USBD_IN_PROGRESS) { mos_stop(sc); return(EIO); } sc->mos_cdata.mos_tx_cnt++; return(0); } void mos_start(struct ifnet *ifp) { struct mos_softc *sc; struct mbuf *m_head = NULL; sc = ifp->if_softc; if (!sc->mos_link) return; if (ifq_is_oactive(&ifp->if_snd)) return; m_head = ifq_deq_begin(&ifp->if_snd); if (m_head == NULL) return; if (mos_encap(sc, m_head, 0)) { ifq_deq_rollback(&ifp->if_snd, m_head); ifq_set_oactive(&ifp->if_snd); return; } ifq_deq_commit(&ifp->if_snd, m_head); /* * If there's a BPF listener, bounce a copy of this frame * to him. */ #if NBPFILTER > 0 if (ifp->if_bpf) bpf_mtap(ifp->if_bpf, m_head, BPF_DIRECTION_OUT); #endif ifq_set_oactive(&ifp->if_snd); /* * Set a timeout in case the chip goes out to lunch. */ ifp->if_timer = 5; return; } void mos_init(void *xsc) { struct mos_softc *sc = xsc; struct ifnet *ifp = &sc->arpcom.ac_if; struct mos_chain *c; usbd_status err; u_int8_t rxmode; int i, s; s = splnet(); /* * Cancel pending I/O and free all RX/TX buffers. */ mos_reset(sc); /* * Write MAC address */ mos_writemac(sc, sc->arpcom.ac_enaddr); /* Init RX ring. */ if (mos_rx_list_init(sc) == ENOBUFS) { printf("%s: rx list init failed\n", sc->mos_dev.dv_xname); splx(s); return; } /* Init TX ring. */ if (mos_tx_list_init(sc) == ENOBUFS) { printf("%s: tx list init failed\n", sc->mos_dev.dv_xname); splx(s); return; } /* 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]); /* Program promiscuous mode and multicast filters. */ mos_iff(sc); /* 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_reg_write_1(sc, MOS_CTL, rxmode); mii_mediachg(GET_MII(sc)); /* Open RX and TX pipes. */ err = usbd_open_pipe(sc->mos_iface, sc->mos_ed[MOS_ENDPT_RX], USBD_EXCLUSIVE_USE, &sc->mos_ep[MOS_ENDPT_RX]); if (err) { printf("%s: open rx pipe failed: %s\n", sc->mos_dev.dv_xname, usbd_errstr(err)); splx(s); return; } err = usbd_open_pipe(sc->mos_iface, sc->mos_ed[MOS_ENDPT_TX], USBD_EXCLUSIVE_USE, &sc->mos_ep[MOS_ENDPT_TX]); if (err) { printf("%s: open tx pipe failed: %s\n", sc->mos_dev.dv_xname, usbd_errstr(err)); splx(s); return; } /* Start up the receive pipe. */ for (i = 0; i < MOS_RX_LIST_CNT; i++) { c = &sc->mos_cdata.mos_rx_chain[i]; usbd_setup_xfer(c->mos_xfer, sc->mos_ep[MOS_ENDPT_RX], c, c->mos_buf, sc->mos_bufsz, USBD_SHORT_XFER_OK | USBD_NO_COPY, USBD_NO_TIMEOUT, mos_rxeof); usbd_transfer(c->mos_xfer); } ifp->if_flags |= IFF_RUNNING; ifq_clr_oactive(&ifp->if_snd); splx(s); timeout_add_sec(&sc->mos_stat_ch, 1); return; } int mos_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data) { struct mos_softc *sc = ifp->if_softc; struct ifreq *ifr = (struct ifreq *)data; int s, error = 0; s = splnet(); switch(cmd) { case SIOCSIFADDR: ifp->if_flags |= IFF_UP; if (!(ifp->if_flags & IFF_RUNNING)) mos_init(sc); break; case SIOCSIFFLAGS: if (ifp->if_flags & IFF_UP) { if (ifp->if_flags & IFF_RUNNING) error = ENETRESET; else mos_init(sc); } else { if (ifp->if_flags & IFF_RUNNING) mos_stop(sc); } break; case SIOCGIFMEDIA: case SIOCSIFMEDIA: error = ifmedia_ioctl(ifp, ifr, &sc->mos_mii.mii_media, cmd); break; default: error = ether_ioctl(ifp, &sc->arpcom, cmd, data); } if (error == ENETRESET) { if (ifp->if_flags & IFF_RUNNING) mos_iff(sc); error = 0; } splx(s); return(error); } void mos_watchdog(struct ifnet *ifp) { struct mos_softc *sc; struct mos_chain *c; usbd_status stat; int s; sc = ifp->if_softc; ifp->if_oerrors++; printf("%s: watchdog timeout\n", sc->mos_dev.dv_xname); s = splusb(); c = &sc->mos_cdata.mos_tx_chain[0]; usbd_get_xfer_status(c->mos_xfer, NULL, NULL, NULL, &stat); mos_txeof(c->mos_xfer, c, stat); if (!IFQ_IS_EMPTY(&ifp->if_snd)) mos_start(ifp); splx(s); } /* * Stop the adapter and free any mbufs allocated to the * RX and TX lists. */ void mos_stop(struct mos_softc *sc) { usbd_status err; struct ifnet *ifp; int i; mos_reset(sc); ifp = &sc->arpcom.ac_if; ifp->if_timer = 0; ifp->if_flags &= ~IFF_RUNNING; ifq_clr_oactive(&ifp->if_snd); timeout_del(&sc->mos_stat_ch); /* Stop transfers. */ if (sc->mos_ep[MOS_ENDPT_RX] != NULL) { usbd_abort_pipe(sc->mos_ep[MOS_ENDPT_RX]); err = usbd_close_pipe(sc->mos_ep[MOS_ENDPT_RX]); if (err) { printf("%s: close rx pipe failed: %s\n", sc->mos_dev.dv_xname, usbd_errstr(err)); } sc->mos_ep[MOS_ENDPT_RX] = NULL; } if (sc->mos_ep[MOS_ENDPT_TX] != NULL) { usbd_abort_pipe(sc->mos_ep[MOS_ENDPT_TX]); err = usbd_close_pipe(sc->mos_ep[MOS_ENDPT_TX]); if (err) { printf("%s: close tx pipe failed: %s\n", sc->mos_dev.dv_xname, usbd_errstr(err)); } sc->mos_ep[MOS_ENDPT_TX] = NULL; } if (sc->mos_ep[MOS_ENDPT_INTR] != NULL) { usbd_abort_pipe(sc->mos_ep[MOS_ENDPT_INTR]); err = usbd_close_pipe(sc->mos_ep[MOS_ENDPT_INTR]); if (err) { printf("%s: close intr pipe failed: %s\n", sc->mos_dev.dv_xname, usbd_errstr(err)); } sc->mos_ep[MOS_ENDPT_INTR] = NULL; } /* Free RX resources. */ for (i = 0; i < MOS_RX_LIST_CNT; i++) { if (sc->mos_cdata.mos_rx_chain[i].mos_mbuf != NULL) { m_freem(sc->mos_cdata.mos_rx_chain[i].mos_mbuf); sc->mos_cdata.mos_rx_chain[i].mos_mbuf = NULL; } if (sc->mos_cdata.mos_rx_chain[i].mos_xfer != NULL) { usbd_free_xfer(sc->mos_cdata.mos_rx_chain[i].mos_xfer); sc->mos_cdata.mos_rx_chain[i].mos_xfer = NULL; } } /* Free TX resources. */ for (i = 0; i < MOS_TX_LIST_CNT; i++) { if (sc->mos_cdata.mos_tx_chain[i].mos_mbuf != NULL) { m_freem(sc->mos_cdata.mos_tx_chain[i].mos_mbuf); sc->mos_cdata.mos_tx_chain[i].mos_mbuf = NULL; } if (sc->mos_cdata.mos_tx_chain[i].mos_xfer != NULL) { usbd_free_xfer(sc->mos_cdata.mos_tx_chain[i].mos_xfer); sc->mos_cdata.mos_tx_chain[i].mos_xfer = NULL; } } sc->mos_link = 0; }