/* $OpenBSD: if_upl.c,v 1.47 2011/01/25 20:03:35 jakemsr Exp $ */ /* $NetBSD: if_upl.c,v 1.19 2002/07/11 21:14:26 augustss Exp $ */ /* * Copyright (c) 2000 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Lennart Augustsson (lennart@augustsson.net) at * Carlstedt Research & Technology. * * 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 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. */ /* * Prolific PL2301/PL2302 driver */ #include "bpfilter.h" #include #include #include #include #include #include #include #include #include #include #include #include #if NBPFILTER > 0 #include #endif #ifdef INET #include #include #include #include #include #else #error upl without INET? #endif #include #include #include #include /* * 7 6 5 4 3 2 1 0 * tx rx 1 0 * 1110 0000 rxdata * 1010 0000 idle * 0010 0000 tx over * 0110 tx over + rxd */ #define UPL_RXDATA 0x40 #define UPL_TXOK 0x80 #define UPL_INTR_PKTLEN 1 #define UPL_CONFIG_NO 1 #define UPL_IFACE_IDX 0 /***/ #define UPL_INTR_INTERVAL 20 #define UPL_BUFSZ 1024 #define UPL_RX_FRAMES 1 #define UPL_TX_FRAMES 1 #define UPL_RX_LIST_CNT 1 #define UPL_TX_LIST_CNT 1 #define UPL_ENDPT_RX 0x0 #define UPL_ENDPT_TX 0x1 #define UPL_ENDPT_INTR 0x2 #define UPL_ENDPT_MAX 0x3 struct upl_softc; struct upl_chain { struct upl_softc *upl_sc; usbd_xfer_handle upl_xfer; char *upl_buf; struct mbuf *upl_mbuf; int upl_idx; }; struct upl_cdata { struct upl_chain upl_tx_chain[UPL_TX_LIST_CNT]; struct upl_chain upl_rx_chain[UPL_RX_LIST_CNT]; int upl_tx_prod; int upl_tx_cons; int upl_tx_cnt; int upl_rx_prod; }; struct upl_softc { struct device sc_dev; struct ifnet sc_if; struct timeout 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[UPL_ENDPT_MAX]; usbd_pipe_handle sc_ep[UPL_ENDPT_MAX]; struct upl_cdata sc_cdata; uByte sc_ibuf; char sc_dying; char sc_attached; u_int sc_rx_errs; struct timeval sc_rx_notice; u_int sc_intr_errs; }; #ifdef UPL_DEBUG #define DPRINTF(x) do { if (upldebug) printf x; } while (0) #define DPRINTFN(n,x) do { if (upldebug >= (n)) printf x; } while (0) int upldebug = 0; #else #define DPRINTF(x) #define DPRINTFN(n,x) #endif /* * Various supported device vendors/products. */ struct usb_devno upl_devs[] = { { USB_VENDOR_PROLIFIC, USB_PRODUCT_PROLIFIC_PL2301 }, { USB_VENDOR_PROLIFIC, USB_PRODUCT_PROLIFIC_PL2302 } }; int upl_match(struct device *, void *, void *); void upl_attach(struct device *, struct device *, void *); int upl_detach(struct device *, int); int upl_activate(struct device *, int); struct cfdriver upl_cd = { NULL, "upl", DV_IFNET }; const struct cfattach upl_ca = { sizeof(struct upl_softc), upl_match, upl_attach, upl_detach, upl_activate, }; int upl_openpipes(struct upl_softc *); int upl_tx_list_init(struct upl_softc *); int upl_rx_list_init(struct upl_softc *); int upl_newbuf(struct upl_softc *, struct upl_chain *, struct mbuf *); int upl_send(struct upl_softc *, struct mbuf *, int); void upl_intr(usbd_xfer_handle, usbd_private_handle, usbd_status); void upl_rxeof(usbd_xfer_handle, usbd_private_handle, usbd_status); void upl_txeof(usbd_xfer_handle, usbd_private_handle, usbd_status); void upl_start(struct ifnet *); int upl_ioctl(struct ifnet *, u_long, caddr_t); void upl_init(void *); void upl_stop(struct upl_softc *); void upl_watchdog(struct ifnet *); int upl_output(struct ifnet *, struct mbuf *, struct sockaddr *, struct rtentry *); void upl_input(struct ifnet *, struct mbuf *); /* * Probe for a Prolific chip. */ int upl_match(struct device *parent, void *match, void *aux) { struct usb_attach_arg *uaa = aux; if (uaa->iface != NULL) return (UMATCH_NONE); return (usb_lookup(upl_devs, uaa->vendor, uaa->product) != NULL ? UMATCH_VENDOR_PRODUCT : UMATCH_NONE); } void upl_attach(struct device *parent, struct device *self, void *aux) { struct upl_softc *sc = (struct upl_softc *)self; struct usb_attach_arg *uaa = aux; int s; usbd_device_handle dev = uaa->device; usbd_interface_handle iface; usbd_status err; struct ifnet *ifp; usb_interface_descriptor_t *id; usb_endpoint_descriptor_t *ed; int i; DPRINTFN(5,(" : upl_attach: sc=%p, dev=%p", sc, dev)); err = usbd_set_config_no(dev, UPL_CONFIG_NO, 1); if (err) { printf("%s: setting config no failed\n", sc->sc_dev.dv_xname); return; } sc->sc_udev = dev; sc->sc_product = uaa->product; sc->sc_vendor = uaa->vendor; err = usbd_device2interface_handle(dev, UPL_IFACE_IDX, &iface); if (err) { printf("%s: getting interface handle failed\n", sc->sc_dev.dv_xname); return; } sc->sc_iface = iface; 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 ep %d\n", sc->sc_dev.dv_xname, i); return; } if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { sc->sc_ed[UPL_ENDPT_RX] = ed->bEndpointAddress; } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT && UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { sc->sc_ed[UPL_ENDPT_TX] = ed->bEndpointAddress; } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && UE_GET_XFERTYPE(ed->bmAttributes) == UE_INTERRUPT) { sc->sc_ed[UPL_ENDPT_INTR] = ed->bEndpointAddress; } } if (sc->sc_ed[UPL_ENDPT_RX] == 0 || sc->sc_ed[UPL_ENDPT_TX] == 0 || sc->sc_ed[UPL_ENDPT_INTR] == 0) { printf("%s: missing endpoint\n", sc->sc_dev.dv_xname); return; } s = splnet(); /* Initialize interface info.*/ ifp = &sc->sc_if; ifp->if_softc = sc; ifp->if_mtu = UPL_BUFSZ; ifp->if_flags = IFF_POINTOPOINT | IFF_NOARP | IFF_SIMPLEX; ifp->if_ioctl = upl_ioctl; ifp->if_start = upl_start; ifp->if_watchdog = upl_watchdog; strlcpy(ifp->if_xname, sc->sc_dev.dv_xname, IFNAMSIZ); ifp->if_type = IFT_OTHER; ifp->if_addrlen = 0; ifp->if_hdrlen = 0; ifp->if_output = upl_output; ifp->if_baudrate = 12000000; IFQ_SET_READY(&ifp->if_snd); /* Attach the interface. */ if_attach(ifp); if_alloc_sadl(ifp); sc->sc_attached = 1; splx(s); } int upl_detach(struct device *self, int flags) { struct upl_softc *sc = (struct upl_softc *)self; struct ifnet *ifp = &sc->sc_if; int s; DPRINTFN(2,("%s: %s: enter\n", sc->sc_dev.dv_xname, __func__)); /* Detached before attached finished, so just bail out. */ if (!sc->sc_attached) return (0); s = splusb(); if (ifp->if_flags & IFF_RUNNING) upl_stop(sc); if (ifp->if_softc != NULL) if_detach(ifp); #ifdef DIAGNOSTIC if (sc->sc_ep[UPL_ENDPT_TX] != NULL || sc->sc_ep[UPL_ENDPT_RX] != NULL || sc->sc_ep[UPL_ENDPT_INTR] != NULL) printf("%s: detach has active endpoints\n", sc->sc_dev.dv_xname); #endif sc->sc_attached = 0; splx(s); return (0); } int upl_activate(struct device *self, int act) { struct upl_softc *sc = (struct upl_softc *)self; DPRINTFN(2,("%s: %s: enter\n", sc->sc_dev.dv_xname, __func__)); switch (act) { case DVACT_ACTIVATE: break; case DVACT_DEACTIVATE: sc->sc_dying = 1; break; } return (0); } /* * Initialize an RX descriptor and attach an MBUF cluster. */ int upl_newbuf(struct upl_softc *sc, struct upl_chain *c, struct mbuf *m) { struct mbuf *m_new = NULL; DPRINTFN(8,("%s: %s: enter\n", sc->sc_dev.dv_xname, __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", sc->sc_dev.dv_xname); return (ENOBUFS); } MCLGET(m_new, M_DONTWAIT); if (!(m_new->m_flags & M_EXT)) { printf("%s: no memory for rx list " "-- packet dropped!\n", sc->sc_dev.dv_xname); 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; } c->upl_mbuf = m_new; return (0); } int upl_rx_list_init(struct upl_softc *sc) { struct upl_cdata *cd; struct upl_chain *c; int i; DPRINTFN(5,("%s: %s: enter\n", sc->sc_dev.dv_xname, __func__)); cd = &sc->sc_cdata; for (i = 0; i < UPL_RX_LIST_CNT; i++) { c = &cd->upl_rx_chain[i]; c->upl_sc = sc; c->upl_idx = i; if (upl_newbuf(sc, c, NULL) == ENOBUFS) return (ENOBUFS); if (c->upl_xfer == NULL) { c->upl_xfer = usbd_alloc_xfer(sc->sc_udev); if (c->upl_xfer == NULL) return (ENOBUFS); c->upl_buf = usbd_alloc_buffer(c->upl_xfer, UPL_BUFSZ); if (c->upl_buf == NULL) { usbd_free_xfer(c->upl_xfer); return (ENOBUFS); } } } return (0); } int upl_tx_list_init(struct upl_softc *sc) { struct upl_cdata *cd; struct upl_chain *c; int i; DPRINTFN(5,("%s: %s: enter\n", sc->sc_dev.dv_xname, __func__)); cd = &sc->sc_cdata; for (i = 0; i < UPL_TX_LIST_CNT; i++) { c = &cd->upl_tx_chain[i]; c->upl_sc = sc; c->upl_idx = i; c->upl_mbuf = NULL; if (c->upl_xfer == NULL) { c->upl_xfer = usbd_alloc_xfer(sc->sc_udev); if (c->upl_xfer == NULL) return (ENOBUFS); c->upl_buf = usbd_alloc_buffer(c->upl_xfer, UPL_BUFSZ); if (c->upl_buf == NULL) { usbd_free_xfer(c->upl_xfer); return (ENOBUFS); } } } return (0); } /* * A frame has been uploaded: pass the resulting mbuf chain up to * the higher level protocols. */ void upl_rxeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status) { struct upl_chain *c = priv; struct upl_softc *sc = c->upl_sc; struct ifnet *ifp = &sc->sc_if; struct mbuf *m; int total_len = 0; int s; 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", sc->sc_dev.dv_xname, sc->sc_rx_errs, usbd_errstr(status)); sc->sc_rx_errs = 0; } if (status == USBD_STALLED) usbd_clear_endpoint_stall_async(sc->sc_ep[UPL_ENDPT_RX]); goto done; } usbd_get_xfer_status(xfer, NULL, NULL, &total_len, NULL); DPRINTFN(9,("%s: %s: enter status=%d length=%d\n", sc->sc_dev.dv_xname, __func__, status, total_len)); m = c->upl_mbuf; memcpy(mtod(c->upl_mbuf, char *), c->upl_buf, total_len); ifp->if_ipackets++; m->m_pkthdr.len = m->m_len = total_len; m->m_pkthdr.rcvif = ifp; s = splnet(); /* XXX ugly */ if (upl_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->if_bpf, m, BPF_DIRECTION_IN); } #endif DPRINTFN(10,("%s: %s: deliver %d\n", sc->sc_dev.dv_xname, __func__, m->m_len)); ether_input_mbuf(ifp, m); done1: splx(s); done: #if 1 /* Setup new transfer. */ usbd_setup_xfer(c->upl_xfer, sc->sc_ep[UPL_ENDPT_RX], c, c->upl_buf, UPL_BUFSZ, USBD_SHORT_XFER_OK | USBD_NO_COPY, USBD_NO_TIMEOUT, upl_rxeof); usbd_transfer(c->upl_xfer); DPRINTFN(10,("%s: %s: start rx\n", sc->sc_dev.dv_xname, __func__)); #endif } /* * A frame was downloaded to the chip. It's safe for us to clean up * the list buffers. */ void upl_txeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status) { struct upl_chain *c = priv; struct upl_softc *sc = c->upl_sc; struct ifnet *ifp = &sc->sc_if; int s; if (sc->sc_dying) return; s = splnet(); DPRINTFN(10,("%s: %s: enter status=%d\n", sc->sc_dev.dv_xname, __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", sc->sc_dev.dv_xname, usbd_errstr(status)); if (status == USBD_STALLED) usbd_clear_endpoint_stall_async(sc->sc_ep[UPL_ENDPT_TX]); splx(s); return; } ifp->if_opackets++; m_freem(c->upl_mbuf); c->upl_mbuf = NULL; if (IFQ_IS_EMPTY(&ifp->if_snd) == 0) upl_start(ifp); splx(s); } int upl_send(struct upl_softc *sc, struct mbuf *m, int idx) { int total_len; struct upl_chain *c; usbd_status err; c = &sc->sc_cdata.upl_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->upl_buf); c->upl_mbuf = m; total_len = m->m_pkthdr.len; DPRINTFN(10,("%s: %s: total_len=%d\n", sc->sc_dev.dv_xname, __func__, total_len)); usbd_setup_xfer(c->upl_xfer, sc->sc_ep[UPL_ENDPT_TX], c, c->upl_buf, total_len, USBD_NO_COPY, USBD_DEFAULT_TIMEOUT, upl_txeof); /* Transmit */ err = usbd_transfer(c->upl_xfer); if (err != USBD_IN_PROGRESS) { printf("%s: upl_send error=%s\n", sc->sc_dev.dv_xname, usbd_errstr(err)); upl_stop(sc); return (EIO); } sc->sc_cdata.upl_tx_cnt++; return (0); } void upl_start(struct ifnet *ifp) { struct upl_softc *sc = ifp->if_softc; struct mbuf *m_head = NULL; if (sc->sc_dying) return; DPRINTFN(10,("%s: %s: enter\n", sc->sc_dev.dv_xname,__func__)); if (ifp->if_flags & IFF_OACTIVE) return; IFQ_POLL(&ifp->if_snd, m_head); if (m_head == NULL) return; if (upl_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->if_bpf, m_head, BPF_DIRECTION_OUT); #endif ifp->if_flags |= IFF_OACTIVE; /* * Set a timeout in case the chip goes out to lunch. */ ifp->if_timer = 5; } void upl_init(void *xsc) { struct upl_softc *sc = xsc; struct ifnet *ifp = &sc->sc_if; int s; if (sc->sc_dying) return; DPRINTFN(10,("%s: %s: enter\n", sc->sc_dev.dv_xname,__func__)); if (ifp->if_flags & IFF_RUNNING) return; s = splnet(); /* Init TX ring. */ if (upl_tx_list_init(sc) == ENOBUFS) { printf("%s: tx list init failed\n", sc->sc_dev.dv_xname); splx(s); return; } /* Init RX ring. */ if (upl_rx_list_init(sc) == ENOBUFS) { printf("%s: rx list init failed\n", sc->sc_dev.dv_xname); splx(s); return; } if (sc->sc_ep[UPL_ENDPT_RX] == NULL) { if (upl_openpipes(sc)) { splx(s); return; } } ifp->if_flags |= IFF_RUNNING; ifp->if_flags &= ~IFF_OACTIVE; splx(s); } int upl_openpipes(struct upl_softc *sc) { struct upl_chain *c; usbd_status err; int i; /* Open RX and TX pipes. */ err = usbd_open_pipe(sc->sc_iface, sc->sc_ed[UPL_ENDPT_RX], USBD_EXCLUSIVE_USE, &sc->sc_ep[UPL_ENDPT_RX]); if (err) { printf("%s: open rx pipe failed: %s\n", sc->sc_dev.dv_xname, usbd_errstr(err)); return (EIO); } err = usbd_open_pipe(sc->sc_iface, sc->sc_ed[UPL_ENDPT_TX], USBD_EXCLUSIVE_USE, &sc->sc_ep[UPL_ENDPT_TX]); if (err) { printf("%s: open tx pipe failed: %s\n", sc->sc_dev.dv_xname, usbd_errstr(err)); return (EIO); } err = usbd_open_pipe_intr(sc->sc_iface, sc->sc_ed[UPL_ENDPT_INTR], USBD_EXCLUSIVE_USE, &sc->sc_ep[UPL_ENDPT_INTR], sc, &sc->sc_ibuf, UPL_INTR_PKTLEN, upl_intr, UPL_INTR_INTERVAL); if (err) { printf("%s: open intr pipe failed: %s\n", sc->sc_dev.dv_xname, usbd_errstr(err)); return (EIO); } #if 1 /* Start up the receive pipe. */ for (i = 0; i < UPL_RX_LIST_CNT; i++) { c = &sc->sc_cdata.upl_rx_chain[i]; usbd_setup_xfer(c->upl_xfer, sc->sc_ep[UPL_ENDPT_RX], c, c->upl_buf, UPL_BUFSZ, USBD_SHORT_XFER_OK | USBD_NO_COPY, USBD_NO_TIMEOUT, upl_rxeof); usbd_transfer(c->upl_xfer); } #endif return (0); } void upl_intr(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status) { struct upl_softc *sc = priv; struct ifnet *ifp = &sc->sc_if; uByte stat; DPRINTFN(15,("%s: %s: enter\n", sc->sc_dev.dv_xname,__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", sc->sc_dev.dv_xname, sc->sc_rx_errs, usbd_errstr(status)); sc->sc_intr_errs = 0; } if (status == USBD_STALLED) usbd_clear_endpoint_stall_async(sc->sc_ep[UPL_ENDPT_RX]); return; } stat = sc->sc_ibuf; if (stat == 0) return; DPRINTFN(10,("%s: %s: stat=0x%02x\n", sc->sc_dev.dv_xname, __func__, stat)); } int upl_ioctl(struct ifnet *ifp, u_long command, caddr_t data) { struct upl_softc *sc = ifp->if_softc; struct ifaddr *ifa = (struct ifaddr *)data; struct ifreq *ifr = (struct ifreq *)data; int s, error = 0; if (sc->sc_dying) return (EIO); DPRINTFN(5,("%s: %s: cmd=0x%08lx\n", sc->sc_dev.dv_xname, __func__, command)); s = splnet(); switch(command) { case SIOCSIFADDR: ifp->if_flags |= IFF_UP; upl_init(sc); switch (ifa->ifa_addr->sa_family) { #ifdef INET case AF_INET: break; #endif /* INET */ } break; case SIOCSIFMTU: if (ifr->ifr_mtu > UPL_BUFSZ) error = EINVAL; else ifp->if_mtu = ifr->ifr_mtu; break; case SIOCSIFFLAGS: if (ifp->if_flags & IFF_UP) { if (!(ifp->if_flags & IFF_RUNNING)) upl_init(sc); } else { if (ifp->if_flags & IFF_RUNNING) upl_stop(sc); } error = 0; break; default: error = ENOTTY; break; } splx(s); return (error); } void upl_watchdog(struct ifnet *ifp) { struct upl_softc *sc = ifp->if_softc; DPRINTFN(5,("%s: %s: enter\n", sc->sc_dev.dv_xname,__func__)); if (sc->sc_dying) return; ifp->if_oerrors++; printf("%s: watchdog timeout\n", sc->sc_dev.dv_xname); upl_stop(sc); upl_init(sc); if (IFQ_IS_EMPTY(&ifp->if_snd) == 0) upl_start(ifp); } /* * Stop the adapter and free any mbufs allocated to the * RX and TX lists. */ void upl_stop(struct upl_softc *sc) { usbd_status err; struct ifnet *ifp; int i; DPRINTFN(10,("%s: %s: enter\n", sc->sc_dev.dv_xname,__func__)); ifp = &sc->sc_if; ifp->if_timer = 0; ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); /* Stop transfers. */ if (sc->sc_ep[UPL_ENDPT_RX] != NULL) { err = usbd_abort_pipe(sc->sc_ep[UPL_ENDPT_RX]); if (err) { printf("%s: abort rx pipe failed: %s\n", sc->sc_dev.dv_xname, usbd_errstr(err)); } err = usbd_close_pipe(sc->sc_ep[UPL_ENDPT_RX]); if (err) { printf("%s: close rx pipe failed: %s\n", sc->sc_dev.dv_xname, usbd_errstr(err)); } sc->sc_ep[UPL_ENDPT_RX] = NULL; } if (sc->sc_ep[UPL_ENDPT_TX] != NULL) { err = usbd_abort_pipe(sc->sc_ep[UPL_ENDPT_TX]); if (err) { printf("%s: abort tx pipe failed: %s\n", sc->sc_dev.dv_xname, usbd_errstr(err)); } err = usbd_close_pipe(sc->sc_ep[UPL_ENDPT_TX]); if (err) { printf("%s: close tx pipe failed: %s\n", sc->sc_dev.dv_xname, usbd_errstr(err)); } sc->sc_ep[UPL_ENDPT_TX] = NULL; } if (sc->sc_ep[UPL_ENDPT_INTR] != NULL) { err = usbd_abort_pipe(sc->sc_ep[UPL_ENDPT_INTR]); if (err) { printf("%s: abort intr pipe failed: %s\n", sc->sc_dev.dv_xname, usbd_errstr(err)); } err = usbd_close_pipe(sc->sc_ep[UPL_ENDPT_INTR]); if (err) { printf("%s: close intr pipe failed: %s\n", sc->sc_dev.dv_xname, usbd_errstr(err)); } sc->sc_ep[UPL_ENDPT_INTR] = NULL; } /* Free RX resources. */ for (i = 0; i < UPL_RX_LIST_CNT; i++) { if (sc->sc_cdata.upl_rx_chain[i].upl_mbuf != NULL) { m_freem(sc->sc_cdata.upl_rx_chain[i].upl_mbuf); sc->sc_cdata.upl_rx_chain[i].upl_mbuf = NULL; } if (sc->sc_cdata.upl_rx_chain[i].upl_xfer != NULL) { usbd_free_xfer(sc->sc_cdata.upl_rx_chain[i].upl_xfer); sc->sc_cdata.upl_rx_chain[i].upl_xfer = NULL; } } /* Free TX resources. */ for (i = 0; i < UPL_TX_LIST_CNT; i++) { if (sc->sc_cdata.upl_tx_chain[i].upl_mbuf != NULL) { m_freem(sc->sc_cdata.upl_tx_chain[i].upl_mbuf); sc->sc_cdata.upl_tx_chain[i].upl_mbuf = NULL; } if (sc->sc_cdata.upl_tx_chain[i].upl_xfer != NULL) { usbd_free_xfer(sc->sc_cdata.upl_tx_chain[i].upl_xfer); sc->sc_cdata.upl_tx_chain[i].upl_xfer = NULL; } } } int upl_output(struct ifnet *ifp, struct mbuf *m, struct sockaddr *dst, struct rtentry *rt0) { int s, len, error; DPRINTFN(10,("%s: %s: enter\n", ((struct upl_softc *)ifp->if_softc)->sc_dev.dv_xname, __func__)); len = m->m_pkthdr.len; s = splnet(); /* * Queue message on interface, and start output if interface * not yet active. */ IFQ_ENQUEUE(&ifp->if_snd, m, NULL, error); if (error) { /* mbuf is already freed */ splx(s); return (error); } ifp->if_obytes += len; if ((ifp->if_flags & IFF_OACTIVE) == 0) (*ifp->if_start)(ifp); splx(s); return (0); } void upl_input(struct ifnet *ifp, struct mbuf *m) { struct ifqueue *inq; int s; /* XXX Assume all traffic is IP */ schednetisr(NETISR_IP); inq = &ipintrq; s = splnet(); if (IF_QFULL(inq)) { IF_DROP(inq); splx(s); #if 0 if (sc->sc_flags & SC_DEBUG) printf("%s: input queue full\n", ifp->if_xname); #endif ifp->if_iqdrops++; return; } IF_ENQUEUE(inq, m); splx(s); ifp->if_ipackets++; ifp->if_ibytes += m->m_len; }