/*- * Copyright (c) 2001-2003, Shunsuke Akiyama . * 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. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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. */ /*- * Copyright (c) 1997, 1998, 1999, 2000 * 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("$FreeBSD$"); /* * RealTek RTL8150 USB to fast ethernet controller driver. * Datasheet is available from * ftp://ftp.realtek.com.tw/lancard/data_sheet/8150/. */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #if __FreeBSD_version < 500000 #include #endif #include #include #include #include #include #include #include #include #include /* "controller miibus0" required. See GENERIC if you get errors here. */ #include "miibus_if.h" #ifdef USB_DEBUG Static int ruedebug = 0; SYSCTL_NODE(_hw_usb, OID_AUTO, rue, CTLFLAG_RW, 0, "USB rue"); SYSCTL_INT(_hw_usb_rue, OID_AUTO, debug, CTLFLAG_RW, &ruedebug, 0, "rue debug level"); #define DPRINTFN(n, x) do { \ if (ruedebug > (n)) \ logprintf x; \ } while (0); #else #define DPRINTFN(n, x) #endif #define DPRINTF(x) DPRINTFN(0, x) /* * Various supported device vendors/products. */ Static struct rue_type rue_devs[] = { { USB_VENDOR_MELCO, USB_PRODUCT_MELCO_LUAKTX }, { USB_VENDOR_REALTEK, USB_PRODUCT_REALTEK_USBKR100 }, { 0, 0 } }; Static struct usb_qdat rue_qdat; Static int rue_match(device_ptr_t); Static int rue_attach(device_ptr_t); Static int rue_detach(device_ptr_t); Static int rue_tx_list_init(struct rue_softc *); Static int rue_rx_list_init(struct rue_softc *); Static int rue_newbuf(struct rue_softc *, struct rue_chain *, struct mbuf *); Static int rue_encap(struct rue_softc *, struct mbuf *, int); #ifdef RUE_INTR_PIPE Static void rue_intr(usbd_xfer_handle, usbd_private_handle, usbd_status); #endif Static void rue_rxeof(usbd_xfer_handle, usbd_private_handle, usbd_status); Static void rue_txeof(usbd_xfer_handle, usbd_private_handle, usbd_status); Static void rue_tick(void *); Static void rue_rxstart(struct ifnet *); Static void rue_start(struct ifnet *); Static int rue_ioctl(struct ifnet *, u_long, caddr_t); Static void rue_init(void *); Static void rue_stop(struct rue_softc *); Static void rue_watchdog(struct ifnet *); Static void rue_shutdown(device_ptr_t); Static int rue_ifmedia_upd(struct ifnet *); Static void rue_ifmedia_sts(struct ifnet *, struct ifmediareq *); Static int rue_miibus_readreg(device_ptr_t, int, int); Static int rue_miibus_writereg(device_ptr_t, int, int, int); Static void rue_miibus_statchg(device_ptr_t); Static uint32_t rue_mchash(const uint8_t *); Static void rue_setmulti(struct rue_softc *); Static void rue_reset(struct rue_softc *); Static int rue_read_mem(struct rue_softc *, u_int16_t, void *, u_int16_t); Static int rue_write_mem(struct rue_softc *, u_int16_t, void *, u_int16_t); Static int rue_csr_read_1(struct rue_softc *, int); Static int rue_csr_write_1(struct rue_softc *, int, u_int8_t); Static int rue_csr_read_2(struct rue_softc *, int); Static int rue_csr_write_2(struct rue_softc *, int, u_int16_t); Static int rue_csr_write_4(struct rue_softc *, int, u_int32_t); Static device_method_t rue_methods[] = { /* Device interface */ DEVMETHOD(device_probe, rue_match), DEVMETHOD(device_attach, rue_attach), DEVMETHOD(device_detach, rue_detach), DEVMETHOD(device_shutdown, rue_shutdown), /* Bus interface */ DEVMETHOD(bus_print_child, bus_generic_print_child), DEVMETHOD(bus_driver_added, bus_generic_driver_added), /* MII interface */ DEVMETHOD(miibus_readreg, rue_miibus_readreg), DEVMETHOD(miibus_writereg, rue_miibus_writereg), DEVMETHOD(miibus_statchg, rue_miibus_statchg), { 0, 0 } }; Static driver_t rue_driver = { "rue", rue_methods, sizeof(struct rue_softc) }; Static devclass_t rue_devclass; DRIVER_MODULE(rue, uhub, rue_driver, rue_devclass, usbd_driver_load, 0); DRIVER_MODULE(miibus, rue, miibus_driver, miibus_devclass, 0, 0); MODULE_DEPEND(rue, usb, 1, 1, 1); MODULE_DEPEND(rue, ether, 1, 1, 1); MODULE_DEPEND(rue, miibus, 1, 1, 1); #define RUE_SETBIT(sc, reg, x) \ rue_csr_write_1(sc, reg, rue_csr_read_1(sc, reg) | (x)) #define RUE_CLRBIT(sc, reg, x) \ rue_csr_write_1(sc, reg, rue_csr_read_1(sc, reg) & ~(x)) #define RUE_SETBIT_2(sc, reg, x) \ rue_csr_write_2(sc, reg, rue_csr_read_2(sc, reg) | (x)) #define RUE_CLRBIT_2(sc, reg, x) \ rue_csr_write_2(sc, reg, rue_csr_read_2(sc, reg) & ~(x)) Static int rue_read_mem(struct rue_softc *sc, u_int16_t addr, void *buf, u_int16_t len) { usb_device_request_t req; usbd_status err; if (sc->rue_dying) return (0); RUE_LOCK(sc); req.bmRequestType = UT_READ_VENDOR_DEVICE; req.bRequest = UR_SET_ADDRESS; USETW(req.wValue, addr); USETW(req.wIndex, 0); USETW(req.wLength, len); err = usbd_do_request(sc->rue_udev, &req, buf); RUE_UNLOCK(sc); if (err) { printf("rue%d: control pipe read failed: %s\n", sc->rue_unit, usbd_errstr(err)); return (-1); } return (0); } Static int rue_write_mem(struct rue_softc *sc, u_int16_t addr, void *buf, u_int16_t len) { usb_device_request_t req; usbd_status err; if (sc->rue_dying) return (0); RUE_LOCK(sc); req.bmRequestType = UT_WRITE_VENDOR_DEVICE; req.bRequest = UR_SET_ADDRESS; USETW(req.wValue, addr); USETW(req.wIndex, 0); USETW(req.wLength, len); err = usbd_do_request(sc->rue_udev, &req, buf); RUE_UNLOCK(sc); if (err) { printf("rue%d: control pipe write failed: %s\n", sc->rue_unit, usbd_errstr(err)); return (-1); } return (0); } Static int rue_csr_read_1(struct rue_softc *sc, int reg) { int err; u_int8_t val = 0; err = rue_read_mem(sc, reg, &val, 1); if (err) return (0); return (val); } Static int rue_csr_read_2(struct rue_softc *sc, int reg) { int err; u_int16_t val = 0; uWord w; USETW(w, val); err = rue_read_mem(sc, reg, &w, 2); val = UGETW(w); if (err) return (0); return (val); } Static int rue_csr_write_1(struct rue_softc *sc, int reg, u_int8_t val) { int err; err = rue_write_mem(sc, reg, &val, 1); if (err) return (-1); return (0); } Static int rue_csr_write_2(struct rue_softc *sc, int reg, u_int16_t val) { int err; uWord w; USETW(w, val); err = rue_write_mem(sc, reg, &w, 2); if (err) return (-1); return (0); } Static int rue_csr_write_4(struct rue_softc *sc, int reg, u_int32_t val) { int err; uDWord dw; USETDW(dw, val); err = rue_write_mem(sc, reg, &dw, 4); if (err) return (-1); return (0); } Static int rue_miibus_readreg(device_ptr_t dev, int phy, int reg) { struct rue_softc *sc = USBGETSOFTC(dev); int rval; int ruereg; if (phy != 0) /* RTL8150 supports PHY == 0, only */ return (0); switch (reg) { case MII_BMCR: ruereg = RUE_BMCR; break; case MII_BMSR: ruereg = RUE_BMSR; break; case MII_ANAR: ruereg = RUE_ANAR; break; case MII_ANER: ruereg = RUE_AER; break; case MII_ANLPAR: ruereg = RUE_ANLP; break; case MII_PHYIDR1: case MII_PHYIDR2: return (0); break; default: if (RUE_REG_MIN <= reg && reg <= RUE_REG_MAX) { rval = rue_csr_read_1(sc, reg); return (rval); } printf("rue%d: bad phy register\n", sc->rue_unit); return (0); } rval = rue_csr_read_2(sc, ruereg); return (rval); } Static int rue_miibus_writereg(device_ptr_t dev, int phy, int reg, int data) { struct rue_softc *sc = USBGETSOFTC(dev); int ruereg; if (phy != 0) /* RTL8150 supports PHY == 0, only */ return (0); switch (reg) { case MII_BMCR: ruereg = RUE_BMCR; break; case MII_BMSR: ruereg = RUE_BMSR; break; case MII_ANAR: ruereg = RUE_ANAR; break; case MII_ANER: ruereg = RUE_AER; break; case MII_ANLPAR: ruereg = RUE_ANLP; break; case MII_PHYIDR1: case MII_PHYIDR2: return (0); break; default: if (RUE_REG_MIN <= reg && reg <= RUE_REG_MAX) { rue_csr_write_1(sc, reg, data); return (0); } printf("rue%d: bad phy register\n", sc->rue_unit); return (0); } rue_csr_write_2(sc, ruereg, data); return (0); } Static void rue_miibus_statchg(device_ptr_t dev) { struct rue_softc *sc = USBGETSOFTC(dev); struct mii_data *mii = GET_MII(sc); int bmcr; RUE_CLRBIT(sc, RUE_CR, (RUE_CR_RE | RUE_CR_TE)); bmcr = rue_csr_read_2(sc, RUE_BMCR); if (IFM_SUBTYPE(mii->mii_media_active) == IFM_100_TX) bmcr |= RUE_BMCR_SPD_SET; else bmcr &= ~RUE_BMCR_SPD_SET; if ((mii->mii_media_active & IFM_GMASK) == IFM_FDX) bmcr |= RUE_BMCR_DUPLEX; else bmcr &= ~RUE_BMCR_DUPLEX; rue_csr_write_2(sc, RUE_BMCR, bmcr); RUE_SETBIT(sc, RUE_CR, (RUE_CR_RE | RUE_CR_TE)); } /* * Calculate CRC of a multicast group address, return the upper 6 bits. */ Static uint32_t rue_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); } /* * Program the 64-bit multicast hash filter. */ Static void rue_setmulti(struct rue_softc *sc) { struct ifnet *ifp; int h = 0; u_int32_t hashes[2] = { 0, 0 }; struct ifmultiaddr *ifma; u_int32_t rxcfg; int mcnt = 0; ifp = &sc->arpcom.ac_if; rxcfg = rue_csr_read_2(sc, RUE_RCR); if (ifp->if_flags & IFF_ALLMULTI || ifp->if_flags & IFF_PROMISC) { rxcfg |= (RUE_RCR_AAM | RUE_RCR_AAP); rxcfg &= ~RUE_RCR_AM; rue_csr_write_2(sc, RUE_RCR, rxcfg); rue_csr_write_4(sc, RUE_MAR0, 0xFFFFFFFF); rue_csr_write_4(sc, RUE_MAR4, 0xFFFFFFFF); return; } /* first, zot all the existing hash bits */ rue_csr_write_4(sc, RUE_MAR0, 0); rue_csr_write_4(sc, RUE_MAR4, 0); /* now program new ones */ #if __FreeBSD_version >= 500000 TAILQ_FOREACH (ifma, &ifp->if_multiaddrs, ifma_link) #else LIST_FOREACH (ifma, &ifp->if_multiaddrs, ifma_link) #endif { if (ifma->ifma_addr->sa_family != AF_LINK) continue; h = rue_mchash(LLADDR((struct sockaddr_dl *)ifma->ifma_addr)); if (h < 32) hashes[0] |= (1 << h); else hashes[1] |= (1 << (h - 32)); mcnt++; } if (mcnt) rxcfg |= RUE_RCR_AM; else rxcfg &= ~RUE_RCR_AM; rxcfg &= ~(RUE_RCR_AAM | RUE_RCR_AAP); rue_csr_write_2(sc, RUE_RCR, rxcfg); rue_csr_write_4(sc, RUE_MAR0, hashes[0]); rue_csr_write_4(sc, RUE_MAR4, hashes[1]); } Static void rue_reset(struct rue_softc *sc) { int i; rue_csr_write_1(sc, RUE_CR, RUE_CR_SOFT_RST); for (i = 0; i < RUE_TIMEOUT; i++) { DELAY(500); if (!(rue_csr_read_1(sc, RUE_CR) & RUE_CR_SOFT_RST)) break; } if (i == RUE_TIMEOUT) printf("rue%d: reset never completed!\n", sc->rue_unit); DELAY(10000); } /* * Probe for a RTL8150 chip. */ USB_MATCH(rue) { USB_MATCH_START(rue, uaa); struct rue_type *t; if (uaa->iface == NULL) return (UMATCH_NONE); t = rue_devs; while (t->rue_vid) { if (uaa->vendor == t->rue_vid && uaa->product == t->rue_did) { return (UMATCH_VENDOR_PRODUCT); } t++; } return (UMATCH_NONE); } /* * Attach the interface. Allocate softc structures, do ifmedia * setup and ethernet/BPF attach. */ USB_ATTACH(rue) { USB_ATTACH_START(rue, sc, uaa); char *devinfo; u_char eaddr[ETHER_ADDR_LEN]; struct ifnet *ifp; usbd_interface_handle iface; usbd_status err; usb_interface_descriptor_t *id; usb_endpoint_descriptor_t *ed; int i; struct rue_type *t; devinfo = malloc(1024, M_USBDEV, M_WAITOK); bzero(sc, sizeof (struct rue_softc)); usbd_devinfo(uaa->device, 0, devinfo); sc->rue_udev = uaa->device; sc->rue_unit = device_get_unit(self); if (usbd_set_config_no(sc->rue_udev, RUE_CONFIG_NO, 0)) { printf("rue%d: getting interface handle failed\n", sc->rue_unit); goto error; } err = usbd_device2interface_handle(uaa->device, RUE_IFACE_IDX, &iface); if (err) { printf("rue%d: getting interface handle failed\n", sc->rue_unit); goto error; } sc->rue_iface = iface; t = rue_devs; while (t->rue_vid) { if (uaa->vendor == t->rue_vid && uaa->product == t->rue_did) { sc->rue_info = t; break; } t++; } id = usbd_get_interface_descriptor(sc->rue_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(iface, i); if (ed == NULL) { printf("rue%d: couldn't get ep %d\n", sc->rue_unit, i); goto error; } if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { sc->rue_ed[RUE_ENDPT_RX] = ed->bEndpointAddress; } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT && UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { sc->rue_ed[RUE_ENDPT_TX] = ed->bEndpointAddress; } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && UE_GET_XFERTYPE(ed->bmAttributes) == UE_INTERRUPT) { sc->rue_ed[RUE_ENDPT_INTR] = ed->bEndpointAddress; } } #if __FreeBSD_version >= 500000 mtx_init(&sc->rue_mtx, device_get_nameunit(self), MTX_NETWORK_LOCK, MTX_DEF | MTX_RECURSE); #endif RUE_LOCK(sc); /* Reset the adapter */ rue_reset(sc); /* Get station address from the EEPROM */ err = rue_read_mem(sc, RUE_EEPROM_IDR0, (caddr_t)&eaddr, ETHER_ADDR_LEN); if (err) { printf("rue%d: couldn't get station address\n", sc->rue_unit); goto error1; } bcopy(eaddr, (char *)&sc->arpcom.ac_enaddr, ETHER_ADDR_LEN); ifp = &sc->arpcom.ac_if; ifp->if_softc = sc; if_initname(ifp, "rue", sc->rue_unit); ifp->if_mtu = ETHERMTU; ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; ifp->if_ioctl = rue_ioctl; ifp->if_output = ether_output; ifp->if_start = rue_start; ifp->if_watchdog = rue_watchdog; ifp->if_init = rue_init; ifp->if_baudrate = 10000000; ifp->if_snd.ifq_maxlen = IFQ_MAXLEN; /* MII setup */ if (mii_phy_probe(self, &sc->rue_miibus, rue_ifmedia_upd, rue_ifmedia_sts)) { printf("rue%d: MII without any PHY!\n", sc->rue_unit); goto error1; } rue_qdat.ifp = ifp; rue_qdat.if_rxstart = rue_rxstart; /* Call MI attach routine */ #if __FreeBSD_version >= 500000 ether_ifattach(ifp, eaddr); #else ether_ifattach(ifp, ETHER_BPF_SUPPORTED); #endif callout_handle_init(&sc->rue_stat_ch); usb_register_netisr(); sc->rue_dying = 0; RUE_UNLOCK(sc); free(devinfo, M_USBDEV); USB_ATTACH_SUCCESS_RETURN; error1: RUE_UNLOCK(sc); #if __FreeBSD_version >= 500000 mtx_destroy(&sc->rue_mtx); #endif error: free(devinfo, M_USBDEV); USB_ATTACH_ERROR_RETURN; } Static int rue_detach(device_ptr_t dev) { struct rue_softc *sc; struct ifnet *ifp; sc = device_get_softc(dev); RUE_LOCK(sc); ifp = &sc->arpcom.ac_if; sc->rue_dying = 1; untimeout(rue_tick, sc, sc->rue_stat_ch); #if __FreeBSD_version >= 500000 ether_ifdetach(ifp); #else ether_ifdetach(ifp, ETHER_BPF_SUPPORTED); #endif if (sc->rue_ep[RUE_ENDPT_TX] != NULL) usbd_abort_pipe(sc->rue_ep[RUE_ENDPT_TX]); if (sc->rue_ep[RUE_ENDPT_RX] != NULL) usbd_abort_pipe(sc->rue_ep[RUE_ENDPT_RX]); #ifdef RUE_INTR_PIPE if (sc->rue_ep[RUE_ENDPT_INTR] != NULL) usbd_abort_pipe(sc->rue_ep[RUE_ENDPT_INTR]); #endif RUE_UNLOCK(sc); #if __FreeBSD_version >= 500000 mtx_destroy(&sc->rue_mtx); #endif return (0); } /* * Initialize an RX descriptor and attach an MBUF cluster. */ Static int rue_newbuf(struct rue_softc *sc, struct rue_chain *c, struct mbuf *m) { struct mbuf *m_new = NULL; if (m == NULL) { MGETHDR(m_new, M_DONTWAIT, MT_DATA); if (m_new == NULL) { printf("rue%d: no memory for rx list " "-- packet dropped!\n", sc->rue_unit); return (ENOBUFS); } MCLGET(m_new, M_DONTWAIT); if (!(m_new->m_flags & M_EXT)) { printf("rue%d: no memory for rx list " "-- packet dropped!\n", sc->rue_unit); 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->rue_mbuf = m_new; return (0); } Static int rue_rx_list_init(struct rue_softc *sc) { struct rue_cdata *cd; struct rue_chain *c; int i; cd = &sc->rue_cdata; for (i = 0; i < RUE_RX_LIST_CNT; i++) { c = &cd->rue_rx_chain[i]; c->rue_sc = sc; c->rue_idx = i; if (rue_newbuf(sc, c, NULL) == ENOBUFS) return (ENOBUFS); if (c->rue_xfer == NULL) { c->rue_xfer = usbd_alloc_xfer(sc->rue_udev); if (c->rue_xfer == NULL) return (ENOBUFS); } } return (0); } Static int rue_tx_list_init(struct rue_softc *sc) { struct rue_cdata *cd; struct rue_chain *c; int i; cd = &sc->rue_cdata; for (i = 0; i < RUE_TX_LIST_CNT; i++) { c = &cd->rue_tx_chain[i]; c->rue_sc = sc; c->rue_idx = i; c->rue_mbuf = NULL; if (c->rue_xfer == NULL) { c->rue_xfer = usbd_alloc_xfer(sc->rue_udev); if (c->rue_xfer == NULL) return (ENOBUFS); } c->rue_buf = malloc(RUE_BUFSZ, M_USBDEV, M_NOWAIT); if (c->rue_buf == NULL) return (ENOBUFS); } return (0); } #ifdef RUE_INTR_PIPE Static void rue_intr(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status) { struct rue_softc *sc = priv; struct ifnet *ifp; struct rue_intrpkt *p; RUE_LOCK(sc); ifp = &sc->arpcom.ac_if; if (!(ifp->if_flags & IFF_RUNNING)) { RUE_UNLOCK(sc); return; } if (status != USBD_NORMAL_COMPLETION) { if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) { RUE_UNLOCK(sc); return; } printf("rue%d: usb error on intr: %s\n", sc->rue_unit, usbd_errstr(status)); if (status == USBD_STALLED) usbd_clear_endpoint_stall(sc->rue_ep[RUE_ENDPT_INTR]); RUE_UNLOCK(sc); return; } usbd_get_xfer_status(xfer, NULL, (void **)&p, NULL, NULL); ifp->if_ierrors += p->rue_rxlost_cnt; ifp->if_ierrors += p->rue_crcerr_cnt; ifp->if_collisions += p->rue_col_cnt; RUE_UNLOCK(sc); } #endif Static void rue_rxstart(struct ifnet *ifp) { struct rue_softc *sc; struct rue_chain *c; sc = ifp->if_softc; RUE_LOCK(sc); c = &sc->rue_cdata.rue_rx_chain[sc->rue_cdata.rue_rx_prod]; if (rue_newbuf(sc, c, NULL) == ENOBUFS) { ifp->if_ierrors++; RUE_UNLOCK(sc); return; } /* Setup new transfer. */ usbd_setup_xfer(c->rue_xfer, sc->rue_ep[RUE_ENDPT_RX], c, mtod(c->rue_mbuf, char *), RUE_BUFSZ, USBD_SHORT_XFER_OK, USBD_NO_TIMEOUT, rue_rxeof); usbd_transfer(c->rue_xfer); RUE_UNLOCK(sc); } /* * A frame has been uploaded: pass the resulting mbuf chain up to * the higher level protocols. */ Static void rue_rxeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status) { struct rue_chain *c = priv; struct rue_softc *sc = c->rue_sc; struct mbuf *m; struct ifnet *ifp; int total_len = 0; struct rue_rxpkt r; if (sc->rue_dying) return; RUE_LOCK(sc); ifp = &sc->arpcom.ac_if; if (!(ifp->if_flags & IFF_RUNNING)) { RUE_UNLOCK(sc); return; } if (status != USBD_NORMAL_COMPLETION) { if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) { RUE_UNLOCK(sc); return; } if (usbd_ratecheck(&sc->rue_rx_notice)) printf("rue%d: usb error on rx: %s\n", sc->rue_unit, usbd_errstr(status)); if (status == USBD_STALLED) usbd_clear_endpoint_stall(sc->rue_ep[RUE_ENDPT_RX]); goto done; } usbd_get_xfer_status(xfer, NULL, NULL, &total_len, NULL); if (total_len <= ETHER_CRC_LEN) { ifp->if_ierrors++; goto done; } m = c->rue_mbuf; bcopy(mtod(m, char *) + total_len - 4, (char *)&r, sizeof (r)); /* Check recieve packet was valid or not */ if ((r.rue_rxstat & RUE_RXSTAT_VALID) == 0) { ifp->if_ierrors++; goto done; } /* No errors; receive the packet. */ total_len -= ETHER_CRC_LEN; ifp->if_ipackets++; m->m_pkthdr.rcvif = (struct ifnet *)&rue_qdat; m->m_pkthdr.len = m->m_len = total_len; /* Put the packet on the special USB input queue. */ usb_ether_input(m); RUE_UNLOCK(sc); return; done: /* Setup new transfer. */ usbd_setup_xfer(xfer, sc->rue_ep[RUE_ENDPT_RX], c, mtod(c->rue_mbuf, char *), RUE_BUFSZ, USBD_SHORT_XFER_OK, USBD_NO_TIMEOUT, rue_rxeof); usbd_transfer(xfer); RUE_UNLOCK(sc); } /* * A frame was downloaded to the chip. It's safe for us to clean up * the list buffers. */ Static void rue_txeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status) { struct rue_chain *c = priv; struct rue_softc *sc = c->rue_sc; struct ifnet *ifp; usbd_status err; RUE_LOCK(sc); ifp = &sc->arpcom.ac_if; if (status != USBD_NORMAL_COMPLETION) { if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) { RUE_UNLOCK(sc); return; } printf("rue%d: usb error on tx: %s\n", sc->rue_unit, usbd_errstr(status)); if (status == USBD_STALLED) usbd_clear_endpoint_stall(sc->rue_ep[RUE_ENDPT_TX]); RUE_UNLOCK(sc); return; } ifp->if_timer = 0; ifp->if_flags &= ~IFF_OACTIVE; usbd_get_xfer_status(c->rue_xfer, NULL, NULL, NULL, &err); if (c->rue_mbuf != NULL) { c->rue_mbuf->m_pkthdr.rcvif = ifp; usb_tx_done(c->rue_mbuf); c->rue_mbuf = NULL; } if (err) ifp->if_oerrors++; else ifp->if_opackets++; RUE_UNLOCK(sc); } Static void rue_tick(void *xsc) { struct rue_softc *sc = xsc; struct ifnet *ifp; struct mii_data *mii; if (sc == NULL) return; RUE_LOCK(sc); ifp = &sc->arpcom.ac_if; mii = GET_MII(sc); if (mii == NULL) { RUE_UNLOCK(sc); return; } mii_tick(mii); if (!sc->rue_link && mii->mii_media_status & IFM_ACTIVE && IFM_SUBTYPE(mii->mii_media_active) != IFM_NONE) { sc->rue_link++; if (ifp->if_snd.ifq_head != NULL) rue_start(ifp); } sc->rue_stat_ch = timeout(rue_tick, sc, hz); RUE_UNLOCK(sc); } Static int rue_encap(struct rue_softc *sc, struct mbuf *m, int idx) { int total_len; struct rue_chain *c; usbd_status err; c = &sc->rue_cdata.rue_tx_chain[idx]; /* * Copy the mbuf data into a contiguous buffer */ m_copydata(m, 0, m->m_pkthdr.len, c->rue_buf); c->rue_mbuf = m; total_len = m->m_pkthdr.len; /* * This is an undocumented behavior. * RTL8150 chip doesn't send frame length smaller than * RUE_MIN_FRAMELEN (60) byte packet. */ if (total_len < RUE_MIN_FRAMELEN) total_len = RUE_MIN_FRAMELEN; usbd_setup_xfer(c->rue_xfer, sc->rue_ep[RUE_ENDPT_TX], c, c->rue_buf, total_len, USBD_FORCE_SHORT_XFER, 10000, rue_txeof); /* Transmit */ err = usbd_transfer(c->rue_xfer); if (err != USBD_IN_PROGRESS) { rue_stop(sc); return (EIO); } sc->rue_cdata.rue_tx_cnt++; return (0); } Static void rue_start(struct ifnet *ifp) { struct rue_softc *sc = ifp->if_softc; struct mbuf *m_head = NULL; RUE_LOCK(sc); if (!sc->rue_link) { RUE_UNLOCK(sc); return; } if (ifp->if_flags & IFF_OACTIVE) { RUE_UNLOCK(sc); return; } IF_DEQUEUE(&ifp->if_snd, m_head); if (m_head == NULL) { RUE_UNLOCK(sc); return; } if (rue_encap(sc, m_head, 0)) { IF_PREPEND(&ifp->if_snd, m_head); ifp->if_flags |= IFF_OACTIVE; RUE_UNLOCK(sc); return; } /* * 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; RUE_UNLOCK(sc); } Static void rue_init(void *xsc) { struct rue_softc *sc = xsc; struct ifnet *ifp = &sc->arpcom.ac_if; struct mii_data *mii = GET_MII(sc); struct rue_chain *c; usbd_status err; int i; int rxcfg; RUE_LOCK(sc); if (ifp->if_flags & IFF_RUNNING) { RUE_UNLOCK(sc); return; } /* * Cancel pending I/O and free all RX/TX buffers. */ rue_reset(sc); /* Set MAC address */ rue_write_mem(sc, RUE_IDR0, sc->arpcom.ac_enaddr, ETHER_ADDR_LEN); /* Init TX ring. */ if (rue_tx_list_init(sc) == ENOBUFS) { printf("rue%d: tx list init failed\n", sc->rue_unit); RUE_UNLOCK(sc); return; } /* Init RX ring. */ if (rue_rx_list_init(sc) == ENOBUFS) { printf("rue%d: rx list init failed\n", sc->rue_unit); RUE_UNLOCK(sc); return; } #ifdef RUE_INTR_PIPE sc->rue_cdata.rue_ibuf = malloc(RUE_INTR_PKTLEN, M_USBDEV, M_NOWAIT); #endif /* * Set the initial TX and RX configuration. */ rue_csr_write_1(sc, RUE_TCR, RUE_TCR_CONFIG); rxcfg = RUE_RCR_CONFIG; /* Set capture broadcast bit to capture broadcast frames. */ if (ifp->if_flags & IFF_BROADCAST) rxcfg |= RUE_RCR_AB; else rxcfg &= ~RUE_RCR_AB; /* If we want promiscuous mode, set the allframes bit. */ if (ifp->if_flags & IFF_PROMISC) rxcfg |= RUE_RCR_AAP; else rxcfg &= ~RUE_RCR_AAP; rue_csr_write_2(sc, RUE_RCR, rxcfg); /* Load the multicast filter. */ rue_setmulti(sc); /* Enable RX and TX */ rue_csr_write_1(sc, RUE_CR, (RUE_CR_TE | RUE_CR_RE | RUE_CR_EP3CLREN)); mii_mediachg(mii); /* Open RX and TX pipes. */ err = usbd_open_pipe(sc->rue_iface, sc->rue_ed[RUE_ENDPT_RX], USBD_EXCLUSIVE_USE, &sc->rue_ep[RUE_ENDPT_RX]); if (err) { printf("rue%d: open rx pipe failed: %s\n", sc->rue_unit, usbd_errstr(err)); RUE_UNLOCK(sc); return; } err = usbd_open_pipe(sc->rue_iface, sc->rue_ed[RUE_ENDPT_TX], USBD_EXCLUSIVE_USE, &sc->rue_ep[RUE_ENDPT_TX]); if (err) { printf("rue%d: open tx pipe failed: %s\n", sc->rue_unit, usbd_errstr(err)); RUE_UNLOCK(sc); return; } #ifdef RUE_INTR_PIPE err = usbd_open_pipe_intr(sc->rue_iface, sc->rue_ed[RUE_ENDPT_INTR], USBD_SHORT_XFER_OK, &sc->rue_ep[RUE_ENDPT_INTR], sc, sc->rue_cdata.rue_ibuf, RUE_INTR_PKTLEN, rue_intr, RUE_INTR_INTERVAL); if (err) { printf("rue%d: open intr pipe failed: %s\n", sc->rue_unit, usbd_errstr(err)); RUE_UNLOCK(sc); return; } #endif /* Start up the receive pipe. */ for (i = 0; i < RUE_RX_LIST_CNT; i++) { c = &sc->rue_cdata.rue_rx_chain[i]; usbd_setup_xfer(c->rue_xfer, sc->rue_ep[RUE_ENDPT_RX], c, mtod(c->rue_mbuf, char *), RUE_BUFSZ, USBD_SHORT_XFER_OK, USBD_NO_TIMEOUT, rue_rxeof); usbd_transfer(c->rue_xfer); } ifp->if_flags |= IFF_RUNNING; ifp->if_flags &= ~IFF_OACTIVE; sc->rue_stat_ch = timeout(rue_tick, sc, hz); RUE_UNLOCK(sc); } /* * Set media options. */ Static int rue_ifmedia_upd(struct ifnet *ifp) { struct rue_softc *sc = ifp->if_softc; struct mii_data *mii = GET_MII(sc); sc->rue_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 rue_ifmedia_sts(struct ifnet *ifp, struct ifmediareq *ifmr) { struct rue_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; } Static int rue_ioctl(struct ifnet *ifp, u_long command, caddr_t data) { struct rue_softc *sc = ifp->if_softc; struct ifreq *ifr = (struct ifreq *)data; struct mii_data *mii; int error = 0; RUE_LOCK(sc); switch (command) { case SIOCSIFFLAGS: if (ifp->if_flags & IFF_UP) { if (ifp->if_flags & IFF_RUNNING && ifp->if_flags & IFF_PROMISC && !(sc->rue_if_flags & IFF_PROMISC)) { RUE_SETBIT_2(sc, RUE_RCR, (RUE_RCR_AAM | RUE_RCR_AAP)); rue_setmulti(sc); } else if (ifp->if_flags & IFF_RUNNING && !(ifp->if_flags & IFF_PROMISC) && sc->rue_if_flags & IFF_PROMISC) { RUE_CLRBIT_2(sc, RUE_RCR, (RUE_RCR_AAM | RUE_RCR_AAP)); rue_setmulti(sc); } else if (!(ifp->if_flags & IFF_RUNNING)) rue_init(sc); } else { if (ifp->if_flags & IFF_RUNNING) rue_stop(sc); } sc->rue_if_flags = ifp->if_flags; error = 0; break; case SIOCADDMULTI: case SIOCDELMULTI: rue_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; } RUE_UNLOCK(sc); return (error); } Static void rue_watchdog(struct ifnet *ifp) { struct rue_softc *sc = ifp->if_softc; struct rue_chain *c; usbd_status stat; RUE_LOCK(sc); ifp->if_oerrors++; printf("rue%d: watchdog timeout\n", sc->rue_unit); c = &sc->rue_cdata.rue_tx_chain[0]; usbd_get_xfer_status(c->rue_xfer, NULL, NULL, NULL, &stat); rue_txeof(c->rue_xfer, c, stat); if (ifp->if_snd.ifq_head != NULL) rue_start(ifp); RUE_UNLOCK(sc); } /* * Stop the adapter and free any mbufs allocated to the * RX and TX lists. */ Static void rue_stop(struct rue_softc *sc) { usbd_status err; struct ifnet *ifp; int i; RUE_LOCK(sc); ifp = &sc->arpcom.ac_if; ifp->if_timer = 0; rue_csr_write_1(sc, RUE_CR, 0x00); rue_reset(sc); untimeout(rue_tick, sc, sc->rue_stat_ch); /* Stop transfers. */ if (sc->rue_ep[RUE_ENDPT_RX] != NULL) { err = usbd_abort_pipe(sc->rue_ep[RUE_ENDPT_RX]); if (err) { printf("rue%d: abort rx pipe failed: %s\n", sc->rue_unit, usbd_errstr(err)); } err = usbd_close_pipe(sc->rue_ep[RUE_ENDPT_RX]); if (err) { printf("rue%d: close rx pipe failed: %s\n", sc->rue_unit, usbd_errstr(err)); } sc->rue_ep[RUE_ENDPT_RX] = NULL; } if (sc->rue_ep[RUE_ENDPT_TX] != NULL) { err = usbd_abort_pipe(sc->rue_ep[RUE_ENDPT_TX]); if (err) { printf("rue%d: abort tx pipe failed: %s\n", sc->rue_unit, usbd_errstr(err)); } err = usbd_close_pipe(sc->rue_ep[RUE_ENDPT_TX]); if (err) { printf("rue%d: close tx pipe failed: %s\n", sc->rue_unit, usbd_errstr(err)); } sc->rue_ep[RUE_ENDPT_TX] = NULL; } #ifdef RUE_INTR_PIPE if (sc->rue_ep[RUE_ENDPT_INTR] != NULL) { err = usbd_abort_pipe(sc->rue_ep[RUE_ENDPT_INTR]); if (err) { printf("rue%d: abort intr pipe failed: %s\n", sc->rue_unit, usbd_errstr(err)); } err = usbd_close_pipe(sc->rue_ep[RUE_ENDPT_INTR]); if (err) { printf("rue%d: close intr pipe failed: %s\n", sc->rue_unit, usbd_errstr(err)); } sc->rue_ep[RUE_ENDPT_INTR] = NULL; } #endif /* Free RX resources. */ for (i = 0; i < RUE_RX_LIST_CNT; i++) { if (sc->rue_cdata.rue_rx_chain[i].rue_buf != NULL) { free(sc->rue_cdata.rue_rx_chain[i].rue_buf, M_USBDEV); sc->rue_cdata.rue_rx_chain[i].rue_buf = NULL; } if (sc->rue_cdata.rue_rx_chain[i].rue_mbuf != NULL) { m_freem(sc->rue_cdata.rue_rx_chain[i].rue_mbuf); sc->rue_cdata.rue_rx_chain[i].rue_mbuf = NULL; } if (sc->rue_cdata.rue_rx_chain[i].rue_xfer != NULL) { usbd_free_xfer(sc->rue_cdata.rue_rx_chain[i].rue_xfer); sc->rue_cdata.rue_rx_chain[i].rue_xfer = NULL; } } /* Free TX resources. */ for (i = 0; i < RUE_TX_LIST_CNT; i++) { if (sc->rue_cdata.rue_tx_chain[i].rue_buf != NULL) { free(sc->rue_cdata.rue_tx_chain[i].rue_buf, M_USBDEV); sc->rue_cdata.rue_tx_chain[i].rue_buf = NULL; } if (sc->rue_cdata.rue_tx_chain[i].rue_mbuf != NULL) { m_freem(sc->rue_cdata.rue_tx_chain[i].rue_mbuf); sc->rue_cdata.rue_tx_chain[i].rue_mbuf = NULL; } if (sc->rue_cdata.rue_tx_chain[i].rue_xfer != NULL) { usbd_free_xfer(sc->rue_cdata.rue_tx_chain[i].rue_xfer); sc->rue_cdata.rue_tx_chain[i].rue_xfer = NULL; } } #ifdef RUE_INTR_PIPE free(sc->rue_cdata.rue_ibuf, M_USBDEV); sc->rue_cdata.rue_ibuf = NULL; #endif sc->rue_link = 0; ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); RUE_UNLOCK(sc); } /* * Stop all chip I/O so that the kernel's probe routines don't * get confused by errant DMAs when rebooting. */ Static void rue_shutdown(device_ptr_t dev) { struct rue_softc *sc; sc = device_get_softc(dev); sc->rue_dying++; RUE_LOCK(sc); rue_reset(sc); rue_stop(sc); RUE_UNLOCK(sc); }