/* * 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. * * $FreeBSD: src/sys/dev/usb/if_axe.c,v 1.10 2003/12/08 07:54:14 obrien Exp $ * $DragonFly: src/sys/dev/netif/axe/if_axe.c,v 1.9 2005/02/16 22:50:28 joerg Exp $ */ /* * ASIX Electronics AX88172 USB 2.0 ethernet driver. Used in the * LinkSys USB200M and various other adapters. * * Manuals available from: * http://www.asix.com.tw/datasheet/mac/Ax88172.PDF * Note: you need the manual for the AX88170 chip (USB 1.x ethernet * controller) to find the definitions for the RX control register. * http://www.asix.com.tw/datasheet/mac/Ax88170.PDF * * Written by Bill Paul * Senior Engineer * Wind River Systems */ /* * The AX88172 provides USB ethernet supports at 10 and 100Mbps. * It uses an external PHY (reference designs use a RealTek chip), * and has a 64-bit multicast hash filter. There is some information * missing from the manual which one needs to know in order to make * the chip function: * * - You must set bit 7 in the RX control register, otherwise the * chip won't receive any packets. * - You must initialize all 3 IPG registers, or you won't be able * to send any packets. * * Note that this device appears to only support loading the station * address via autload from the EEPROM (i.e. there's no way to manaully * set it). * * (Adam Weinberger wanted me to name this driver if_gir.c.) */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "../mii_layer//mii.h" #include "../mii_layer/miivar.h" /* "controller miibus0" required. See GENERIC if you get errors here. */ #include "miibus_if.h" #include "if_axereg.h" /* * Various supported device vendors/products. */ Static struct axe_type axe_devs[] = { { 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 }, { 0, 0 } }; Static int axe_match(device_ptr_t); Static int axe_attach(device_ptr_t); Static int axe_detach(device_ptr_t); Static int axe_tx_list_init(struct axe_softc *); Static int axe_rx_list_init(struct axe_softc *); Static int axe_newbuf(struct axe_softc *, struct axe_chain *, struct mbuf *); Static int axe_encap(struct axe_softc *, struct mbuf *, int); Static void axe_rxeof(usbd_xfer_handle, usbd_private_handle, usbd_status); Static void axe_txeof(usbd_xfer_handle, usbd_private_handle, usbd_status); Static void axe_tick(void *); Static void axe_rxstart(struct ifnet *); Static void axe_start(struct ifnet *); Static int axe_ioctl(struct ifnet *, u_long, caddr_t, struct ucred *); Static void axe_init(void *); Static void axe_stop(struct axe_softc *); Static void axe_watchdog(struct ifnet *); Static void axe_shutdown(device_ptr_t); Static int axe_miibus_readreg(device_ptr_t, int, int); Static int axe_miibus_writereg(device_ptr_t, int, int, int); Static void axe_miibus_statchg(device_ptr_t); Static int axe_cmd(struct axe_softc *, int, int, int, void *); Static int axe_ifmedia_upd(struct ifnet *); Static void axe_ifmedia_sts(struct ifnet *, struct ifmediareq *); Static void axe_setmulti(struct axe_softc *); Static uint32_t axe_mchash(const uint8_t *); Static device_method_t axe_methods[] = { /* Device interface */ DEVMETHOD(device_probe, axe_match), DEVMETHOD(device_attach, axe_attach), DEVMETHOD(device_detach, axe_detach), DEVMETHOD(device_shutdown, axe_shutdown), /* bus interface */ DEVMETHOD(bus_print_child, bus_generic_print_child), DEVMETHOD(bus_driver_added, bus_generic_driver_added), /* MII interface */ DEVMETHOD(miibus_readreg, axe_miibus_readreg), DEVMETHOD(miibus_writereg, axe_miibus_writereg), DEVMETHOD(miibus_statchg, axe_miibus_statchg), { 0, 0 } }; Static driver_t axe_driver = { "axe", axe_methods, sizeof(struct axe_softc) }; Static devclass_t axe_devclass; DRIVER_MODULE(axe, uhub, axe_driver, axe_devclass, usbd_driver_load, 0); DRIVER_MODULE(miibus, axe, miibus_driver, miibus_devclass, 0, 0); MODULE_DEPEND(axe, usb, 1, 1, 1); MODULE_DEPEND(axe, miibus, 1, 1, 1); Static int axe_cmd(struct axe_softc *sc, int cmd, int index, int val, void *buf) { usb_device_request_t req; usbd_status err; if (sc->axe_dying) return(0); if (AXE_CMD_DIR(cmd)) req.bmRequestType = UT_WRITE_VENDOR_DEVICE; else req.bmRequestType = UT_READ_VENDOR_DEVICE; req.bRequest = AXE_CMD_CMD(cmd); USETW(req.wValue, val); USETW(req.wIndex, index); USETW(req.wLength, AXE_CMD_LEN(cmd)); err = usbd_do_request(sc->axe_udev, &req, buf); if (err) return(-1); return(0); } Static int axe_miibus_readreg(device_ptr_t dev, int phy, int reg) { struct axe_softc *sc = USBGETSOFTC(dev); usbd_status err; u_int16_t val; int s; if (sc->axe_dying) return(0); #ifdef notdef /* * The chip tells us the MII address of any supported * PHYs attached to the chip, so only read from those. */ if (sc->axe_phyaddrs[0] != AXE_NOPHY && phy != sc->axe_phyaddrs[0]) return (0); if (sc->axe_phyaddrs[1] != AXE_NOPHY && phy != sc->axe_phyaddrs[1]) return (0); #endif if (sc->axe_phyaddrs[0] != 0xFF && sc->axe_phyaddrs[0] != phy) return (0); s = splimp(); axe_cmd(sc, AXE_CMD_MII_OPMODE_SW, 0, 0, NULL); err = axe_cmd(sc, AXE_CMD_MII_READ_REG, reg, phy, (void *)&val); axe_cmd(sc, AXE_CMD_MII_OPMODE_HW, 0, 0, NULL); splx(s); if (err) { printf("axe%d: read PHY failed\n", sc->axe_unit); return(-1); } if (val) sc->axe_phyaddrs[0] = phy; return (val); } Static int axe_miibus_writereg(device_ptr_t dev, int phy, int reg, int val) { struct axe_softc *sc = USBGETSOFTC(dev); usbd_status err; int s; if (sc->axe_dying) return(0); s = splimp(); axe_cmd(sc, AXE_CMD_MII_OPMODE_SW, 0, 0, NULL); err = axe_cmd(sc, AXE_CMD_MII_WRITE_REG, reg, phy, (void *)&val); axe_cmd(sc, AXE_CMD_MII_OPMODE_HW, 0, 0, NULL); splx(s); if (err) { printf("axe%d: write PHY failed\n", sc->axe_unit); return(-1); } return (0); } Static void axe_miibus_statchg(device_ptr_t dev) { #ifdef notdef struct axe_softc *sc = USBGETSOFTC(dev); struct mii_data *mii = GET_MII(sc); #endif /* doesn't seem to be necessary */ return; } /* * Set media options. */ Static int axe_ifmedia_upd(struct ifnet *ifp) { struct axe_softc *sc = ifp->if_softc; struct mii_data *mii = GET_MII(sc); sc->axe_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. */ Static void axe_ifmedia_sts(struct ifnet *ifp, struct ifmediareq *ifmr) { struct axe_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; return; } Static uint32_t axe_mchash(const uint8_t *addr) { uint32_t crc, carry; int idx, bit; uint8_t data; /* Compute CRC for the address value. */ crc = 0xFFFFFFFF; /* initial value */ for (idx = 0; idx < 6; idx++) { for (data = *addr++, bit = 0; bit < 8; bit++, data >>= 1) { carry = ((crc & 0x80000000) ? 1 : 0) ^ (data & 0x01); crc <<= 1; if (carry) crc = (crc ^ 0x04c11db6) | carry; } } /* return the filter bit position */ return((crc >> 26) & 0x0000003F); } Static void axe_setmulti(struct axe_softc *sc) { struct ifnet *ifp; struct ifmultiaddr *ifma; u_int32_t h = 0; u_int16_t rxmode; u_int8_t hashtbl[8] = { 0, 0, 0, 0, 0, 0, 0, 0 }; int s; ifp = &sc->arpcom.ac_if; s = splimp(); axe_cmd(sc, AXE_CMD_RXCTL_READ, 0, 0, (void *)&rxmode); if (ifp->if_flags & IFF_ALLMULTI || ifp->if_flags & IFF_PROMISC) { rxmode |= AXE_RXCMD_ALLMULTI; axe_cmd(sc, AXE_CMD_RXCTL_WRITE, 0, rxmode, NULL); splx(s); return; } else rxmode &= ~AXE_RXCMD_ALLMULTI; LIST_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) { if (ifma->ifma_addr->sa_family != AF_LINK) continue; h = axe_mchash(LLADDR((struct sockaddr_dl *)ifma->ifma_addr)); hashtbl[h / 8] |= 1 << (h % 8); } axe_cmd(sc, AXE_CMD_WRITE_MCAST, 0, 0, (void *)&hashtbl); axe_cmd(sc, AXE_CMD_RXCTL_WRITE, 0, rxmode, NULL); splx(s); } Static void axe_reset(struct axe_softc *sc) { if (sc->axe_dying) return; if (usbd_set_config_no(sc->axe_udev, AXE_CONFIG_NO, 1) || usbd_device2interface_handle(sc->axe_udev, AXE_IFACE_IDX, &sc->axe_iface)) { printf("axe%d: getting interface handle failed\n", sc->axe_unit); } /* Wait a little while for the chip to get its brains in order. */ DELAY(1000); return; } /* * Probe for a AX88172 chip. */ USB_MATCH(axe) { USB_MATCH_START(axe, uaa); struct axe_type *t; if (!uaa->iface) return(UMATCH_NONE); t = axe_devs; while(t->axe_vid) { if (uaa->vendor == t->axe_vid && uaa->product == t->axe_did) { return(UMATCH_VENDOR_PRODUCT); } t++; } return(UMATCH_NONE); } /* * Attach the interface. Allocate softc structures, do ifmedia * setup and ethernet/BPF attach. */ USB_ATTACH(axe) { USB_ATTACH_START(axe, sc, uaa); char devinfo[1024]; u_char eaddr[ETHER_ADDR_LEN]; struct ifnet *ifp; usb_interface_descriptor_t *id; usb_endpoint_descriptor_t *ed; int i; bzero(sc, sizeof(struct axe_softc)); sc->axe_udev = uaa->device; sc->axe_dev = self; sc->axe_unit = device_get_unit(self); callout_init(&sc->axe_stat_timer); if (usbd_set_config_no(sc->axe_udev, AXE_CONFIG_NO, 1)) { printf("axe%d: getting interface handle failed\n", sc->axe_unit); USB_ATTACH_ERROR_RETURN; } if (usbd_device2interface_handle(uaa->device, AXE_IFACE_IDX, &sc->axe_iface)) { printf("axe%d: getting interface handle failed\n", sc->axe_unit); USB_ATTACH_ERROR_RETURN; } id = usbd_get_interface_descriptor(sc->axe_iface); usbd_devinfo(uaa->device, 0, devinfo); device_set_desc_copy(self, devinfo); printf("%s: %s\n", USBDEVNAME(self), devinfo); /* Find endpoints. */ for (i = 0; i < id->bNumEndpoints; i++) { ed = usbd_interface2endpoint_descriptor(sc->axe_iface, i); if (!ed) { printf("axe%d: couldn't get ep %d\n", sc->axe_unit, i); USB_ATTACH_ERROR_RETURN; } if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { sc->axe_ed[AXE_ENDPT_RX] = ed->bEndpointAddress; } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT && UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { sc->axe_ed[AXE_ENDPT_TX] = ed->bEndpointAddress; } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && UE_GET_XFERTYPE(ed->bmAttributes) == UE_INTERRUPT) { sc->axe_ed[AXE_ENDPT_INTR] = ed->bEndpointAddress; } } /* * Get station address. */ axe_cmd(sc, AXE_CMD_READ_NODEID, 0, 0, &eaddr); /* * Load IPG values and PHY indexes. */ axe_cmd(sc, AXE_CMD_READ_IPG012, 0, 0, (void *)&sc->axe_ipgs); axe_cmd(sc, AXE_CMD_READ_PHYID, 0, 0, (void *)&sc->axe_phyaddrs); /* * Work around broken adapters that appear to lie about * their PHY addresses. */ sc->axe_phyaddrs[0] = sc->axe_phyaddrs[1] = 0xFF; ifp = &sc->arpcom.ac_if; ifp->if_softc = sc; if_initname(ifp, "axe", sc->axe_unit); ifp->if_mtu = ETHERMTU; ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; ifp->if_ioctl = axe_ioctl; ifp->if_start = axe_start; ifp->if_watchdog = axe_watchdog; ifp->if_init = axe_init; ifp->if_baudrate = 10000000; ifq_set_maxlen(&ifp->if_snd, IFQ_MAXLEN); ifq_set_ready(&ifp->if_snd); if (mii_phy_probe(self, &sc->axe_miibus, axe_ifmedia_upd, axe_ifmedia_sts)) { printf("axe%d: MII without any PHY!\n", sc->axe_unit); USB_ATTACH_ERROR_RETURN; } /* * Call MI attach routine. */ ether_ifattach(ifp, eaddr); sc->axe_dying = 0; usb_register_netisr(); USB_ATTACH_SUCCESS_RETURN; } Static int axe_detach(device_ptr_t dev) { struct axe_softc *sc; struct ifnet *ifp; int s; sc = device_get_softc(dev); ifp = &sc->arpcom.ac_if; s = splimp(); sc->axe_dying = 1; callout_stop(&sc->axe_stat_timer); ether_ifdetach(ifp); if (sc->axe_ep[AXE_ENDPT_TX] != NULL) usbd_abort_pipe(sc->axe_ep[AXE_ENDPT_TX]); if (sc->axe_ep[AXE_ENDPT_RX] != NULL) usbd_abort_pipe(sc->axe_ep[AXE_ENDPT_RX]); if (sc->axe_ep[AXE_ENDPT_INTR] != NULL) usbd_abort_pipe(sc->axe_ep[AXE_ENDPT_INTR]); splx(s); return(0); } /* * Initialize an RX descriptor and attach an MBUF cluster. */ Static int axe_newbuf(struct axe_softc *sc, struct axe_chain *c, struct mbuf *m) { struct mbuf *m_new = NULL; if (m == NULL) { m_new = m_getcl(MB_DONTWAIT, MT_DATA, M_PKTHDR); if (m_new == NULL) { printf("axe%d: no memory for rx list " "-- packet dropped!\n", sc->axe_unit); 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->axe_mbuf = m_new; return(0); } Static int axe_rx_list_init(struct axe_softc *sc) { struct axe_cdata *cd; struct axe_chain *c; int i; cd = &sc->axe_cdata; for (i = 0; i < AXE_RX_LIST_CNT; i++) { c = &cd->axe_rx_chain[i]; c->axe_sc = sc; c->axe_idx = i; if (axe_newbuf(sc, c, NULL) == ENOBUFS) return(ENOBUFS); if (c->axe_xfer == NULL) { c->axe_xfer = usbd_alloc_xfer(sc->axe_udev); if (c->axe_xfer == NULL) return(ENOBUFS); } } return(0); } Static int axe_tx_list_init(struct axe_softc *sc) { struct axe_cdata *cd; struct axe_chain *c; int i; cd = &sc->axe_cdata; for (i = 0; i < AXE_TX_LIST_CNT; i++) { c = &cd->axe_tx_chain[i]; c->axe_sc = sc; c->axe_idx = i; c->axe_mbuf = NULL; if (c->axe_xfer == NULL) { c->axe_xfer = usbd_alloc_xfer(sc->axe_udev); if (c->axe_xfer == NULL) return(ENOBUFS); } c->axe_buf = malloc(AXE_BUFSZ, M_USBDEV, M_WAITOK); if (c->axe_buf == NULL) return(ENOBUFS); } return(0); } Static void axe_rxstart(struct ifnet *ifp) { struct axe_softc *sc; struct axe_chain *c; int s; sc = ifp->if_softc; s = splimp(); c = &sc->axe_cdata.axe_rx_chain[sc->axe_cdata.axe_rx_prod]; if (axe_newbuf(sc, c, NULL) == ENOBUFS) { ifp->if_ierrors++; splx(s); return; } /* Setup new transfer. */ usbd_setup_xfer(c->axe_xfer, sc->axe_ep[AXE_ENDPT_RX], c, mtod(c->axe_mbuf, char *), AXE_BUFSZ, USBD_SHORT_XFER_OK, USBD_NO_TIMEOUT, axe_rxeof); usbd_transfer(c->axe_xfer); splx(s); return; } /* * A frame has been uploaded: pass the resulting mbuf chain up to * the higher level protocols. */ Static void axe_rxeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status) { struct axe_softc *sc; struct axe_chain *c; struct mbuf *m; struct ifnet *ifp; int s, total_len = 0; c = priv; sc = c->axe_sc; s = splimp(); ifp = &sc->arpcom.ac_if; if (!(ifp->if_flags & IFF_RUNNING)) { splx(s); return; } if (status != USBD_NORMAL_COMPLETION) { if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) { splx(s); return; } if (usbd_ratecheck(&sc->axe_rx_notice)) printf("axe%d: usb error on rx: %s\n", sc->axe_unit, usbd_errstr(status)); if (status == USBD_STALLED) usbd_clear_endpoint_stall(sc->axe_ep[AXE_ENDPT_RX]); goto done; } usbd_get_xfer_status(xfer, NULL, NULL, &total_len, NULL); m = c->axe_mbuf; if (total_len < sizeof(struct ether_header)) { ifp->if_ierrors++; goto done; } ifp->if_ipackets++; m->m_pkthdr.rcvif = ifp; m->m_pkthdr.len = m->m_len = total_len; /* Put the packet on the special USB input queue. */ usb_ether_input(m); axe_rxstart(ifp); splx(s); return; done: /* Setup new transfer. */ usbd_setup_xfer(c->axe_xfer, sc->axe_ep[AXE_ENDPT_RX], c, mtod(c->axe_mbuf, char *), AXE_BUFSZ, USBD_SHORT_XFER_OK, USBD_NO_TIMEOUT, axe_rxeof); usbd_transfer(c->axe_xfer); splx(s); return; } /* * A frame was downloaded to the chip. It's safe for us to clean up * the list buffers. */ Static void axe_txeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status) { struct axe_softc *sc; struct axe_chain *c; struct ifnet *ifp; usbd_status err; int s; c = priv; sc = c->axe_sc; ifp = &sc->arpcom.ac_if; s = splimp(); if (status != USBD_NORMAL_COMPLETION) { if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) { splx(s); return; } printf("axe%d: usb error on tx: %s\n", sc->axe_unit, usbd_errstr(status)); if (status == USBD_STALLED) usbd_clear_endpoint_stall(sc->axe_ep[AXE_ENDPT_TX]); splx(s); return; } ifp->if_timer = 0; ifp->if_flags &= ~IFF_OACTIVE; usbd_get_xfer_status(c->axe_xfer, NULL, NULL, NULL, &err); if (c->axe_mbuf != NULL) { m_freem(c->axe_mbuf); c->axe_mbuf = NULL; } if (err) ifp->if_oerrors++; else ifp->if_opackets++; if (!ifq_is_empty(&ifp->if_snd)) (*ifp->if_start)(ifp); splx(s); } Static void axe_tick(void *xsc) { struct axe_softc *sc; struct ifnet *ifp; struct mii_data *mii; int s; sc = xsc; if (sc == NULL) return; ifp = &sc->arpcom.ac_if; mii = GET_MII(sc); if (mii == NULL) return; s = splimp(); mii_tick(mii); if (!sc->axe_link && mii->mii_media_status & IFM_ACTIVE && IFM_SUBTYPE(mii->mii_media_active) != IFM_NONE) { sc->axe_link++; if (!ifq_is_empty(&ifp->if_snd)) axe_start(ifp); } callout_reset(&sc->axe_stat_timer, hz, axe_tick, sc); splx(s); } Static int axe_encap(struct axe_softc *sc, struct mbuf *m, int idx) { struct axe_chain *c; usbd_status err; c = &sc->axe_cdata.axe_tx_chain[idx]; /* * Copy the mbuf data into a contiguous buffer, leaving two * bytes at the beginning to hold the frame length. */ m_copydata(m, 0, m->m_pkthdr.len, c->axe_buf); c->axe_mbuf = m; usbd_setup_xfer(c->axe_xfer, sc->axe_ep[AXE_ENDPT_TX], c, c->axe_buf, m->m_pkthdr.len, 0, 10000, axe_txeof); /* Transmit */ err = usbd_transfer(c->axe_xfer); if (err != USBD_IN_PROGRESS) { axe_stop(sc); return(EIO); } sc->axe_cdata.axe_tx_cnt++; return(0); } Static void axe_start(struct ifnet *ifp) { struct axe_softc *sc; struct mbuf *m_head = NULL; int s; sc = ifp->if_softc; s = splimp(); if (!sc->axe_link) { splx(s); return; } if (ifp->if_flags & IFF_OACTIVE) { splx(s); return; } m_head = ifq_poll(&ifp->if_snd); if (m_head == NULL) { splx(s); return; } if (axe_encap(sc, m_head, 0)) { ifp->if_flags |= IFF_OACTIVE; splx(s); return; } m_head = ifq_dequeue(&ifp->if_snd); /* * If there's a BPF listener, bounce a copy of this frame * to him. */ BPF_MTAP(ifp, m_head); ifp->if_flags |= IFF_OACTIVE; /* * Set a timeout in case the chip goes out to lunch. */ ifp->if_timer = 5; splx(s); } Static void axe_init(void *xsc) { struct axe_softc *sc = xsc; struct ifnet *ifp = &sc->arpcom.ac_if; struct axe_chain *c; usbd_status err; int i, rxmode, s; if (ifp->if_flags & IFF_RUNNING) return; s = splimp(); /* * Cancel pending I/O and free all RX/TX buffers. */ axe_reset(sc); #ifdef notdef /* Set MAC address */ axe_mac(sc, sc->arpcom.ac_enaddr, 1); #endif /* Enable RX logic. */ /* Init TX ring. */ if (axe_tx_list_init(sc) == ENOBUFS) { printf("axe%d: tx list init failed\n", sc->axe_unit); splx(s); return; } /* Init RX ring. */ if (axe_rx_list_init(sc) == ENOBUFS) { printf("axe%d: rx list init failed\n", sc->axe_unit); splx(s); return; } /* Set transmitter IPG values */ axe_cmd(sc, AXE_CMD_WRITE_IPG0, 0, sc->axe_ipgs[0], NULL); axe_cmd(sc, AXE_CMD_WRITE_IPG1, 0, sc->axe_ipgs[1], NULL); axe_cmd(sc, AXE_CMD_WRITE_IPG2, 0, sc->axe_ipgs[2], NULL); /* Enable receiver, set RX mode */ rxmode = AXE_RXCMD_UNICAST|AXE_RXCMD_MULTICAST|AXE_RXCMD_ENABLE; /* If we want promiscuous mode, set the allframes bit. */ if (ifp->if_flags & IFF_PROMISC) rxmode |= AXE_RXCMD_PROMISC; if (ifp->if_flags & IFF_BROADCAST) rxmode |= AXE_RXCMD_BROADCAST; axe_cmd(sc, AXE_CMD_RXCTL_WRITE, 0, rxmode, NULL); /* Load the multicast filter. */ axe_setmulti(sc); /* Open RX and TX pipes. */ err = usbd_open_pipe(sc->axe_iface, sc->axe_ed[AXE_ENDPT_RX], USBD_EXCLUSIVE_USE, &sc->axe_ep[AXE_ENDPT_RX]); if (err) { printf("axe%d: open rx pipe failed: %s\n", sc->axe_unit, usbd_errstr(err)); splx(s); return; } err = usbd_open_pipe(sc->axe_iface, sc->axe_ed[AXE_ENDPT_TX], USBD_EXCLUSIVE_USE, &sc->axe_ep[AXE_ENDPT_TX]); if (err) { printf("axe%d: open tx pipe failed: %s\n", sc->axe_unit, usbd_errstr(err)); splx(s); return; } /* Start up the receive pipe. */ for (i = 0; i < AXE_RX_LIST_CNT; i++) { c = &sc->axe_cdata.axe_rx_chain[i]; usbd_setup_xfer(c->axe_xfer, sc->axe_ep[AXE_ENDPT_RX], c, mtod(c->axe_mbuf, char *), AXE_BUFSZ, USBD_SHORT_XFER_OK, USBD_NO_TIMEOUT, axe_rxeof); usbd_transfer(c->axe_xfer); } ifp->if_flags |= IFF_RUNNING; ifp->if_flags &= ~IFF_OACTIVE; splx(s); callout_reset(&sc->axe_stat_timer, hz, axe_tick, sc); return; } Static int axe_ioctl(struct ifnet *ifp, u_long command, caddr_t data, struct ucred *cr) { struct axe_softc *sc = ifp->if_softc; struct ifreq *ifr = (struct ifreq *)data; struct mii_data *mii; u_int16_t rxmode; int error = 0, s; s = splimp(); switch(command) { case SIOCSIFFLAGS: if (ifp->if_flags & IFF_UP) { if (ifp->if_flags & IFF_RUNNING && ifp->if_flags & IFF_PROMISC && !(sc->axe_if_flags & IFF_PROMISC)) { axe_cmd(sc, AXE_CMD_RXCTL_READ, 0, 0, (void *)&rxmode); rxmode |= AXE_RXCMD_PROMISC; axe_cmd(sc, AXE_CMD_RXCTL_WRITE, 0, rxmode, NULL); axe_setmulti(sc); } else if (ifp->if_flags & IFF_RUNNING && !(ifp->if_flags & IFF_PROMISC) && sc->axe_if_flags & IFF_PROMISC) { axe_cmd(sc, AXE_CMD_RXCTL_READ, 0, 0, (void *)&rxmode); rxmode &= ~AXE_RXCMD_PROMISC; axe_cmd(sc, AXE_CMD_RXCTL_WRITE, 0, rxmode, NULL); axe_setmulti(sc); } else if (!(ifp->if_flags & IFF_RUNNING)) axe_init(sc); } else { if (ifp->if_flags & IFF_RUNNING) axe_stop(sc); } sc->axe_if_flags = ifp->if_flags; error = 0; break; case SIOCADDMULTI: case SIOCDELMULTI: axe_setmulti(sc); error = 0; break; case SIOCGIFMEDIA: case SIOCSIFMEDIA: mii = GET_MII(sc); error = ifmedia_ioctl(ifp, ifr, &mii->mii_media, command); break; default: error = ether_ioctl(ifp, command, data); break; } splx(s); return(error); } Static void axe_watchdog(struct ifnet *ifp) { struct axe_softc *sc; struct axe_chain *c; usbd_status stat; int s; sc = ifp->if_softc; s = splimp(); ifp->if_oerrors++; printf("axe%d: watchdog timeout\n", sc->axe_unit); c = &sc->axe_cdata.axe_tx_chain[0]; usbd_get_xfer_status(c->axe_xfer, NULL, NULL, NULL, &stat); axe_txeof(c->axe_xfer, c, stat); if (!ifq_is_empty(&ifp->if_snd)) axe_start(ifp); splx(s); } /* * Stop the adapter and free any mbufs allocated to the * RX and TX lists. */ Static void axe_stop(struct axe_softc *sc) { usbd_status err; struct ifnet *ifp; int i, s; s = splimp(); axe_reset(sc); ifp = &sc->arpcom.ac_if; ifp->if_timer = 0; callout_stop(&sc->axe_stat_timer); /* Stop transfers. */ if (sc->axe_ep[AXE_ENDPT_RX] != NULL) { err = usbd_abort_pipe(sc->axe_ep[AXE_ENDPT_RX]); if (err) { printf("axe%d: abort rx pipe failed: %s\n", sc->axe_unit, usbd_errstr(err)); } err = usbd_close_pipe(sc->axe_ep[AXE_ENDPT_RX]); if (err) { printf("axe%d: close rx pipe failed: %s\n", sc->axe_unit, usbd_errstr(err)); } sc->axe_ep[AXE_ENDPT_RX] = NULL; } if (sc->axe_ep[AXE_ENDPT_TX] != NULL) { err = usbd_abort_pipe(sc->axe_ep[AXE_ENDPT_TX]); if (err) { printf("axe%d: abort tx pipe failed: %s\n", sc->axe_unit, usbd_errstr(err)); } err = usbd_close_pipe(sc->axe_ep[AXE_ENDPT_TX]); if (err) { printf("axe%d: close tx pipe failed: %s\n", sc->axe_unit, usbd_errstr(err)); } sc->axe_ep[AXE_ENDPT_TX] = NULL; } if (sc->axe_ep[AXE_ENDPT_INTR] != NULL) { err = usbd_abort_pipe(sc->axe_ep[AXE_ENDPT_INTR]); if (err) { printf("axe%d: abort intr pipe failed: %s\n", sc->axe_unit, usbd_errstr(err)); } err = usbd_close_pipe(sc->axe_ep[AXE_ENDPT_INTR]); if (err) { printf("axe%d: close intr pipe failed: %s\n", sc->axe_unit, usbd_errstr(err)); } sc->axe_ep[AXE_ENDPT_INTR] = NULL; } /* Free RX resources. */ for (i = 0; i < AXE_RX_LIST_CNT; i++) { if (sc->axe_cdata.axe_rx_chain[i].axe_buf != NULL) { free(sc->axe_cdata.axe_rx_chain[i].axe_buf, M_USBDEV); sc->axe_cdata.axe_rx_chain[i].axe_buf = NULL; } if (sc->axe_cdata.axe_rx_chain[i].axe_mbuf != NULL) { m_freem(sc->axe_cdata.axe_rx_chain[i].axe_mbuf); sc->axe_cdata.axe_rx_chain[i].axe_mbuf = NULL; } if (sc->axe_cdata.axe_rx_chain[i].axe_xfer != NULL) { usbd_free_xfer(sc->axe_cdata.axe_rx_chain[i].axe_xfer); sc->axe_cdata.axe_rx_chain[i].axe_xfer = NULL; } } /* Free TX resources. */ for (i = 0; i < AXE_TX_LIST_CNT; i++) { if (sc->axe_cdata.axe_tx_chain[i].axe_buf != NULL) { free(sc->axe_cdata.axe_tx_chain[i].axe_buf, M_USBDEV); sc->axe_cdata.axe_tx_chain[i].axe_buf = NULL; } if (sc->axe_cdata.axe_tx_chain[i].axe_mbuf != NULL) { m_freem(sc->axe_cdata.axe_tx_chain[i].axe_mbuf); sc->axe_cdata.axe_tx_chain[i].axe_mbuf = NULL; } if (sc->axe_cdata.axe_tx_chain[i].axe_xfer != NULL) { usbd_free_xfer(sc->axe_cdata.axe_tx_chain[i].axe_xfer); sc->axe_cdata.axe_tx_chain[i].axe_xfer = NULL; } } ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); sc->axe_link = 0; splx(s); } /* * Stop all chip I/O so that the kernel's probe routines don't * get confused by errant DMAs when rebooting. */ Static void axe_shutdown(device_ptr_t dev) { struct axe_softc *sc; sc = device_get_softc(dev); axe_stop(sc); }