/*- * Copyright (c) 2001-2003, Shunsuke Akiyama . * 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. * * 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: src/sys/dev/usb/if_rue.c,v 1.40 2007/07/09 16:58:07 imp Exp $"); /* * RealTek RTL8150 USB to fast ethernet controller driver. * Datasheet is available from * ftp://ftp.realtek.com.tw/lancard/data_sheet/8150/. */ /* * NOTE: all function names beginning like "rue_cfg_" can only * be called from within the config thread function ! */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #define usbd_config_td_cc rue_config_copy #define usbd_config_td_softc rue_softc #include #include #include #include "usbdevs.h" #include #include #include /* "device miibus" required. See GENERIC if you get errors here. */ #include "miibus_if.h" #ifdef USB_DEBUG #define DPRINTF(sc,n,fmt,...) \ do { if (rue_debug > (n)) { \ printf("%s:%s: " fmt, (sc)->sc_name, \ __FUNCTION__,## __VA_ARGS__); } } while (0) static int rue_debug = 0; SYSCTL_NODE(_hw_usb, OID_AUTO, rue, CTLFLAG_RW, 0, "USB rue"); SYSCTL_INT(_hw_usb_rue, OID_AUTO, debug, CTLFLAG_RW, &rue_debug, 0, "rue debug level"); #else #define DPRINTF(...) do { } while (0) #endif /* * 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} }; /* prototypes */ static device_probe_t rue_probe; static device_attach_t rue_attach; static device_detach_t rue_detach; static device_shutdown_t rue_shutdown; static usbd_callback_t rue_intr_clear_stall_callback; static usbd_callback_t rue_intr_callback; static usbd_callback_t rue_bulk_read_clear_stall_callback; static usbd_callback_t rue_bulk_read_callback; static usbd_callback_t rue_bulk_write_clear_stall_callback; static usbd_callback_t rue_bulk_write_callback; static usbd_config_td_command_t rue_config_copy; static usbd_config_td_command_t rue_cfg_promisc_upd; static usbd_config_td_command_t rue_cfg_first_time_setup; static usbd_config_td_command_t rue_cfg_tick; static usbd_config_td_command_t rue_cfg_pre_init; static usbd_config_td_command_t rue_cfg_init; static usbd_config_td_command_t rue_cfg_ifmedia_upd; static usbd_config_td_command_t rue_cfg_pre_stop; static usbd_config_td_command_t rue_cfg_stop; static void rue_cfg_do_request(struct rue_softc *sc, usb_device_request_t *req, void *data); static void rue_cfg_read_mem(struct rue_softc *sc, uint16_t addr, void *buf, uint16_t len); static void rue_cfg_write_mem(struct rue_softc *sc, uint16_t addr, void *buf, uint16_t len); static uint8_t rue_cfg_csr_read_1(struct rue_softc *sc, uint16_t reg); static uint16_t rue_cfg_csr_read_2(struct rue_softc *sc, uint16_t reg); static void rue_cfg_csr_write_1(struct rue_softc *sc, uint16_t reg, uint8_t val); static void rue_cfg_csr_write_2(struct rue_softc *sc, uint16_t reg, uint16_t val); static void rue_cfg_csr_write_4(struct rue_softc *sc, int reg, uint32_t val); static miibus_readreg_t rue_cfg_miibus_readreg; static miibus_writereg_t rue_cfg_miibus_writereg; static miibus_statchg_t rue_cfg_miibus_statchg; static void rue_cfg_reset(struct rue_softc *sc); static void rue_start_cb(struct ifnet *ifp); static void rue_start_transfers(struct rue_softc *sc); static void rue_init_cb(void *arg); static int rue_ifmedia_upd_cb(struct ifnet *ifp); static void rue_ifmedia_sts_cb(struct ifnet *ifp, struct ifmediareq *ifmr); static int rue_ioctl_cb(struct ifnet *ifp, u_long command, caddr_t data); static void rue_watchdog(void *arg); static const struct usbd_config rue_config[RUE_ENDPT_MAX] = { [0] = { .type = UE_BULK, .endpoint = UE_ADDR_ANY, .direction = UE_DIR_OUT, .mh.bufsize = MCLBYTES, .mh.flags = {.pipe_bof = 1,.force_short_xfer = 1,}, .mh.callback = &rue_bulk_write_callback, .mh.timeout = 10000, /* 10 seconds */ }, [1] = { .type = UE_BULK, .endpoint = UE_ADDR_ANY, .direction = UE_DIR_IN, .mh.bufsize = (MCLBYTES + 4), .mh.flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, .mh.callback = &rue_bulk_read_callback, .mh.timeout = 0, /* no timeout */ }, [2] = { .type = UE_CONTROL, .endpoint = 0x00, /* Control pipe */ .direction = UE_DIR_ANY, .mh.bufsize = sizeof(usb_device_request_t), .mh.flags = {}, .mh.callback = &rue_bulk_write_clear_stall_callback, .mh.timeout = 1000, /* 1 second */ .mh.interval = 50, /* 50ms */ }, [3] = { .type = UE_CONTROL, .endpoint = 0x00, /* Control pipe */ .direction = UE_DIR_ANY, .mh.bufsize = sizeof(usb_device_request_t), .mh.flags = {}, .mh.callback = &rue_bulk_read_clear_stall_callback, .mh.timeout = 1000, /* 1 second */ .mh.interval = 50, /* 50ms */ }, [4] = { .type = UE_INTERRUPT, .endpoint = UE_ADDR_ANY, .direction = UE_DIR_IN, .mh.flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, .mh.bufsize = 0, /* use wMaxPacketSize */ .mh.callback = &rue_intr_callback, }, [5] = { .type = UE_CONTROL, .endpoint = 0x00, /* Control pipe */ .direction = UE_DIR_ANY, .mh.bufsize = sizeof(usb_device_request_t), .mh.flags = {}, .mh.callback = &rue_intr_clear_stall_callback, .mh.timeout = 1000, /* 1 second */ .mh.interval = 50, /* 50ms */ }, }; static device_method_t rue_methods[] = { /* Device interface */ DEVMETHOD(device_probe, rue_probe), 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_cfg_miibus_readreg), DEVMETHOD(miibus_writereg, rue_cfg_miibus_writereg), DEVMETHOD(miibus_statchg, rue_cfg_miibus_statchg), {0, 0} }; static driver_t rue_driver = { .name = "rue", .methods = rue_methods, .size = 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); static void rue_cfg_do_request(struct rue_softc *sc, usb_device_request_t *req, void *data) { uint16_t length; usbd_status_t err; if (usbd_config_td_is_gone(&(sc->sc_config_td))) { goto error; } err = usbd_do_request_flags (sc->sc_udev, &(sc->sc_mtx), req, data, 0, NULL, 1000); if (err) { DPRINTF(sc, 0, "device request failed, err=%s " "(ignored)\n", usbd_errstr(err)); error: length = UGETW(req->wLength); if ((req->bmRequestType & UT_READ) && length) { bzero(data, length); } } return; } #define RUE_CFG_SETBIT(sc, reg, x) \ rue_cfg_csr_write_1(sc, reg, rue_cfg_csr_read_1(sc, reg) | (x)) #define RUE_CFG_CLRBIT(sc, reg, x) \ rue_cfg_csr_write_1(sc, reg, rue_cfg_csr_read_1(sc, reg) & ~(x)) static void rue_cfg_read_mem(struct rue_softc *sc, uint16_t addr, void *buf, uint16_t len) { usb_device_request_t req; req.bmRequestType = UT_READ_VENDOR_DEVICE; req.bRequest = UR_SET_ADDRESS; USETW(req.wValue, addr); USETW(req.wIndex, 0); USETW(req.wLength, len); rue_cfg_do_request(sc, &req, buf); return; } static void rue_cfg_write_mem(struct rue_softc *sc, uint16_t addr, void *buf, uint16_t len) { usb_device_request_t req; req.bmRequestType = UT_WRITE_VENDOR_DEVICE; req.bRequest = UR_SET_ADDRESS; USETW(req.wValue, addr); USETW(req.wIndex, 0); USETW(req.wLength, len); rue_cfg_do_request(sc, &req, buf); return; } static uint8_t rue_cfg_csr_read_1(struct rue_softc *sc, uint16_t reg) { uint8_t val; rue_cfg_read_mem(sc, reg, &val, 1); return (val); } static uint16_t rue_cfg_csr_read_2(struct rue_softc *sc, uint16_t reg) { uint8_t val[2]; rue_cfg_read_mem(sc, reg, &val, 2); return (UGETW(val)); } static void rue_cfg_csr_write_1(struct rue_softc *sc, uint16_t reg, uint8_t val) { rue_cfg_write_mem(sc, reg, &val, 1); return; } static void rue_cfg_csr_write_2(struct rue_softc *sc, uint16_t reg, uint16_t val) { uint8_t temp[2]; USETW(temp, val); rue_cfg_write_mem(sc, reg, &temp, 2); return; } static void rue_cfg_csr_write_4(struct rue_softc *sc, int reg, uint32_t val) { uint8_t temp[4]; USETDW(temp, val); rue_cfg_write_mem(sc, reg, &temp, 4); return; } static int rue_cfg_miibus_readreg(device_t dev, int phy, int reg) { struct rue_softc *sc = device_get_softc(dev); uint16_t rval; uint16_t ruereg; if (phy != 0) { /* RTL8150 supports PHY == 0, only */ return (0); } mtx_lock(&(sc->sc_mtx)); /* XXX */ 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: rval = 0; goto done; default: if ((RUE_REG_MIN <= reg) && (reg <= RUE_REG_MAX)) { rval = rue_cfg_csr_read_1(sc, reg); goto done; } printf("rue%d: bad phy register\n", sc->sc_unit); rval = 0; goto done; } rval = rue_cfg_csr_read_2(sc, ruereg); done: mtx_unlock(&(sc->sc_mtx)); /* XXX */ return (rval); } static int rue_cfg_miibus_writereg(device_t dev, int phy, int reg, int data) { struct rue_softc *sc = device_get_softc(dev); uint16_t ruereg; if (phy != 0) { /* RTL8150 supports PHY == 0, only */ return (0); } mtx_lock(&(sc->sc_mtx)); /* XXX */ 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: goto done; default: if ((RUE_REG_MIN <= reg) && (reg <= RUE_REG_MAX)) { rue_cfg_csr_write_1(sc, reg, data); goto done; } printf("%s: bad phy register\n", sc->sc_name); goto done; } rue_cfg_csr_write_2(sc, ruereg, data); done: mtx_unlock(&(sc->sc_mtx)); /* XXX */ return (0); } static void rue_cfg_miibus_statchg(device_t dev) { /* * When the code below is enabled the card starts doing weird * things after link going from UP to DOWN and back UP. * * Looks like some of register writes below messes up PHY * interface. * * No visible regressions were found after commenting this code * out, so that disable it for good. */ #if 0 struct rue_softc *sc = device_get_softc(dev); struct mii_data *mii = GET_MII(sc); uint16_t bmcr; mtx_lock(&(sc->sc_mtx)); /* XXX */ RUE_CFG_CLRBIT(sc, RUE_CR, (RUE_CR_RE | RUE_CR_TE)); bmcr = rue_cfg_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_cfg_csr_write_2(sc, RUE_BMCR, bmcr); RUE_CFG_SETBIT(sc, RUE_CR, (RUE_CR_RE | RUE_CR_TE)); mtx_unlock(&(sc->sc_mtx)); /* XXX */ #endif return; } static void rue_config_copy(struct rue_softc *sc, struct rue_config_copy *cc, uint16_t refcount) { struct ifnet *ifp = sc->sc_ifp; struct ifmultiaddr *ifma; uint8_t h; uint8_t i; bzero(cc, sizeof(*cc)); if (ifp) { for (i = 0; i < ETHER_ADDR_LEN; i++) { cc->if_lladdr[i] = IF_LLADDR(ifp)[i]; } cc->if_flags = ifp->if_flags; /* compute hash bits for multicast filter */ IF_ADDR_LOCK(ifp); TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) { if (ifma->ifma_addr->sa_family != AF_LINK) { continue; } h = ether_crc32_be(LLADDR((struct sockaddr_dl *) ifma->ifma_addr), ETHER_ADDR_LEN) >> 26; if (h < 32) cc->if_hashes[0] |= (1 << h); else cc->if_hashes[1] |= (1 << (h - 32)); } IF_ADDR_UNLOCK(ifp); } return; } /* * Program the 64-bit multicast hash filter. */ static void rue_cfg_promisc_upd(struct rue_softc *sc, struct rue_config_copy *cc, uint16_t refcount) { uint16_t rxcfg; rxcfg = rue_cfg_csr_read_2(sc, RUE_RCR); if ((cc->if_flags & IFF_ALLMULTI) || (cc->if_flags & IFF_PROMISC)) { rxcfg |= (RUE_RCR_AAM | RUE_RCR_AAP); rxcfg &= ~RUE_RCR_AM; rue_cfg_csr_write_2(sc, RUE_RCR, rxcfg); rue_cfg_csr_write_4(sc, RUE_MAR0, 0xFFFFFFFF); rue_cfg_csr_write_4(sc, RUE_MAR4, 0xFFFFFFFF); return; } /* first, zero all the existing hash bits */ rue_cfg_csr_write_4(sc, RUE_MAR0, 0); rue_cfg_csr_write_4(sc, RUE_MAR4, 0); if (cc->if_hashes[0] || cc->if_hashes[1]) rxcfg |= RUE_RCR_AM; else rxcfg &= ~RUE_RCR_AM; rxcfg &= ~(RUE_RCR_AAM | RUE_RCR_AAP); rue_cfg_csr_write_2(sc, RUE_RCR, rxcfg); rue_cfg_csr_write_4(sc, RUE_MAR0, cc->if_hashes[0]); rue_cfg_csr_write_4(sc, RUE_MAR4, cc->if_hashes[1]); return; } static void rue_cfg_reset(struct rue_softc *sc) { usbd_status_t err; uint16_t to; rue_cfg_csr_write_1(sc, RUE_CR, RUE_CR_SOFT_RST); for (to = 0;; to++) { if (to < RUE_TIMEOUT) { err = usbd_config_td_sleep(&(sc->sc_config_td), hz / 100); if (err) { break; } if (!(rue_cfg_csr_read_1(sc, RUE_CR) & RUE_CR_SOFT_RST)) { break; } } else { printf("%s: reset timeout!\n", sc->sc_name); break; } } err = usbd_config_td_sleep(&(sc->sc_config_td), hz / 100); return; } /* * Probe for a RTL8150 chip. */ static int rue_probe(device_t dev) { struct usb_attach_arg *uaa = device_get_ivars(dev); struct rue_type *t; if (uaa->usb_mode != USB_MODE_HOST) { return (UMATCH_NONE); } 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. */ static int rue_attach(device_t dev) { struct usb_attach_arg *uaa = device_get_ivars(dev); struct rue_softc *sc = device_get_softc(dev); int32_t error; uint8_t iface_index; if (sc == NULL) { return (ENOMEM); } sc->sc_udev = uaa->device; sc->sc_dev = dev; sc->sc_unit = device_get_unit(dev); usbd_set_device_desc(dev); snprintf(sc->sc_name, sizeof(sc->sc_name), "%s", device_get_nameunit(dev)); mtx_init(&(sc->sc_mtx), "rue lock", NULL, MTX_DEF | MTX_RECURSE); usb_callout_init_mtx(&(sc->sc_watchdog), &(sc->sc_mtx), CALLOUT_RETURNUNLOCKED); error = usbd_set_config_no(uaa->device, RUE_CONFIG_NO, 0); if (error) { device_printf(dev, "setting config " "number failed!\n"); goto detach; } iface_index = RUE_IFACE_IDX; error = usbd_transfer_setup(uaa->device, &iface_index, sc->sc_xfer, rue_config, RUE_ENDPT_MAX, sc, &(sc->sc_mtx)); if (error) { device_printf(dev, "allocating USB " "transfers failed!\n"); goto detach; } error = usbd_config_td_setup(&(sc->sc_config_td), sc, &(sc->sc_mtx), NULL, sizeof(struct rue_config_copy), 16); if (error) { device_printf(dev, "could not setup config " "thread!\n"); goto detach; } mtx_lock(&(sc->sc_mtx)); sc->sc_flags |= RUE_FLAG_WAIT_LINK; /* start setup */ usbd_config_td_queue_command (&(sc->sc_config_td), NULL, &rue_cfg_first_time_setup, 0, 0); /* start watchdog (will exit mutex) */ rue_watchdog(sc); return (0); /* success */ detach: rue_detach(dev); return (ENXIO); /* failure */ } static void rue_cfg_first_time_setup(struct rue_softc *sc, struct rue_config_copy *cc, uint16_t refcount) { struct ifnet *ifp; int error; uint8_t eaddr[min(ETHER_ADDR_LEN, 6)]; /* reset the adapter */ rue_cfg_reset(sc); /* get station address from the EEPROM */ rue_cfg_read_mem(sc, RUE_EEPROM_IDR0, eaddr, ETHER_ADDR_LEN); mtx_unlock(&(sc->sc_mtx)); ifp = if_alloc(IFT_ETHER); mtx_lock(&(sc->sc_mtx)); if (ifp == NULL) { printf("%s: could not if_alloc()\n", sc->sc_name); goto done; } sc->sc_evilhack = ifp; ifp->if_softc = sc; if_initname(ifp, "rue", sc->sc_unit); ifp->if_mtu = ETHERMTU; ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; ifp->if_ioctl = rue_ioctl_cb; ifp->if_start = rue_start_cb; ifp->if_watchdog = NULL; ifp->if_init = rue_init_cb; IFQ_SET_MAXLEN(&ifp->if_snd, IFQ_MAXLEN); ifp->if_snd.ifq_drv_maxlen = IFQ_MAXLEN; IFQ_SET_READY(&ifp->if_snd); /* * XXX need Giant when accessing the device structures ! */ mtx_unlock(&(sc->sc_mtx)); mtx_lock(&Giant); /* MII setup */ error = mii_phy_probe(sc->sc_dev, &(sc->sc_miibus), &rue_ifmedia_upd_cb, &rue_ifmedia_sts_cb); mtx_unlock(&Giant); mtx_lock(&(sc->sc_mtx)); if (error) { printf("%s: MII without any PHY!\n", sc->sc_name); if_free(ifp); goto done; } sc->sc_ifp = ifp; mtx_unlock(&(sc->sc_mtx)); /* * Call MI attach routine. */ ether_ifattach(ifp, eaddr); mtx_lock(&(sc->sc_mtx)); done: return; } static int rue_detach(device_t dev) { struct rue_softc *sc = device_get_softc(dev); struct ifnet *ifp; usbd_config_td_stop(&(sc->sc_config_td)); mtx_lock(&(sc->sc_mtx)); usb_callout_stop(&sc->sc_watchdog); rue_cfg_pre_stop(sc, NULL, 0); ifp = sc->sc_ifp; mtx_unlock(&(sc->sc_mtx)); /* stop all USB transfers first */ usbd_transfer_unsetup(sc->sc_xfer, RUE_ENDPT_MAX); /* get rid of any late children */ bus_generic_detach(dev); if (ifp) { ether_ifdetach(ifp); if_free(ifp); } usbd_config_td_unsetup(&(sc->sc_config_td)); usb_callout_drain(&(sc->sc_watchdog)); mtx_destroy(&(sc->sc_mtx)); return (0); } static void rue_intr_clear_stall_callback(struct usbd_xfer *xfer) { struct rue_softc *sc = xfer->priv_sc; struct usbd_xfer *xfer_other = sc->sc_xfer[4]; if (usbd_clear_stall_callback(xfer, xfer_other)) { DPRINTF(sc, 0, "stall cleared\n"); sc->sc_flags &= ~RUE_FLAG_INTR_STALL; usbd_transfer_start(xfer_other); } return; } static void rue_intr_callback(struct usbd_xfer *xfer) { struct rue_softc *sc = xfer->priv_sc; struct ifnet *ifp = sc->sc_ifp; struct rue_intrpkt pkt; switch (USBD_GET_STATE(xfer)) { case USBD_ST_TRANSFERRED: if (ifp && (ifp->if_drv_flags & IFF_DRV_RUNNING) && (xfer->actlen >= sizeof(pkt))) { usbd_copy_out(xfer->frbuffers, 0, &pkt, sizeof(pkt)); ifp->if_ierrors += pkt.rue_rxlost_cnt; ifp->if_ierrors += pkt.rue_crcerr_cnt; ifp->if_collisions += pkt.rue_col_cnt; } case USBD_ST_SETUP: if (sc->sc_flags & RUE_FLAG_INTR_STALL) { usbd_transfer_start(sc->sc_xfer[5]); } else { xfer->frlengths[0] = xfer->max_data_length; usbd_start_hardware(xfer); } return; default: /* Error */ if (xfer->error != USBD_ERR_CANCELLED) { /* start clear stall */ sc->sc_flags |= RUE_FLAG_INTR_STALL; usbd_transfer_start(sc->sc_xfer[5]); } return; } } static void rue_bulk_read_clear_stall_callback(struct usbd_xfer *xfer) { struct rue_softc *sc = xfer->priv_sc; struct usbd_xfer *xfer_other = sc->sc_xfer[1]; if (usbd_clear_stall_callback(xfer, xfer_other)) { DPRINTF(sc, 0, "stall cleared\n"); sc->sc_flags &= ~RUE_FLAG_READ_STALL; usbd_transfer_start(xfer_other); } return; } static void rue_bulk_read_callback(struct usbd_xfer *xfer) { struct rue_softc *sc = xfer->priv_sc; struct ifnet *ifp = sc->sc_ifp; uint16_t status; struct mbuf *m = NULL; switch (USBD_GET_STATE(xfer)) { case USBD_ST_TRANSFERRED: if (xfer->actlen < 4) { ifp->if_ierrors++; goto tr_setup; } usbd_copy_out(xfer->frbuffers, xfer->actlen - 4, &status, sizeof(status)); status = le16toh(status); /* check recieve packet was valid or not */ if ((status & RUE_RXSTAT_VALID) == 0) { ifp->if_ierrors++; goto tr_setup; } xfer->actlen -= 4; if (xfer->actlen < sizeof(struct ether_header)) { ifp->if_ierrors++; goto tr_setup; } m = usbd_ether_get_mbuf(); if (m == NULL) { ifp->if_ierrors++; goto tr_setup; } xfer->actlen = min(xfer->actlen, m->m_len); usbd_copy_out(xfer->frbuffers, 0, m->m_data, xfer->actlen); ifp->if_ipackets++; m->m_pkthdr.rcvif = ifp; m->m_pkthdr.len = m->m_len = xfer->actlen; case USBD_ST_SETUP: tr_setup: if (sc->sc_flags & RUE_FLAG_READ_STALL) { usbd_transfer_start(sc->sc_xfer[3]); } else { xfer->frlengths[0] = xfer->max_data_length; usbd_start_hardware(xfer); } /* * At the end of a USB callback it is always safe to unlock * the private mutex of a device! That is why we do the * "if_input" here, and not some lines up! */ if (m) { mtx_unlock(&(sc->sc_mtx)); (ifp->if_input) (ifp, m); mtx_lock(&(sc->sc_mtx)); } return; default: /* Error */ if (xfer->error != USBD_ERR_CANCELLED) { /* try to clear stall first */ sc->sc_flags |= RUE_FLAG_READ_STALL; usbd_transfer_start(sc->sc_xfer[3]); } DPRINTF(sc, 0, "bulk read error, %s\n", usbd_errstr(xfer->error)); return; } } static void rue_bulk_write_clear_stall_callback(struct usbd_xfer *xfer) { struct rue_softc *sc = xfer->priv_sc; struct usbd_xfer *xfer_other = sc->sc_xfer[0]; if (usbd_clear_stall_callback(xfer, xfer_other)) { DPRINTF(sc, 0, "stall cleared\n"); sc->sc_flags &= ~RUE_FLAG_WRITE_STALL; usbd_transfer_start(xfer_other); } return; } static void rue_bulk_write_callback(struct usbd_xfer *xfer) { struct rue_softc *sc = xfer->priv_sc; struct ifnet *ifp = sc->sc_ifp; struct mbuf *m; uint32_t temp_len; switch (USBD_GET_STATE(xfer)) { case USBD_ST_TRANSFERRED: DPRINTF(sc, 10, "transfer complete\n"); ifp->if_opackets++; case USBD_ST_SETUP: if (sc->sc_flags & RUE_FLAG_WRITE_STALL) { usbd_transfer_start(sc->sc_xfer[2]); goto done; } if (sc->sc_flags & RUE_FLAG_WAIT_LINK) { /* * don't send anything if there is no link ! */ goto done; } IFQ_DRV_DEQUEUE(&(ifp->if_snd), m); if (m == NULL) { goto done; } if (m->m_pkthdr.len > MCLBYTES) { m->m_pkthdr.len = MCLBYTES; } temp_len = m->m_pkthdr.len; usbd_m_copy_in(xfer->frbuffers, 0, m, 0, 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 (temp_len < RUE_MIN_FRAMELEN) { usbd_bzero(xfer->frbuffers, temp_len, RUE_MIN_FRAMELEN - temp_len); temp_len = RUE_MIN_FRAMELEN; } xfer->frlengths[0] = temp_len; /* * if there's a BPF listener, bounce a copy * of this frame to him: */ BPF_MTAP(ifp, m); m_freem(m); usbd_start_hardware(xfer); done: return; default: /* Error */ DPRINTF(sc, 10, "transfer error, %s\n", usbd_errstr(xfer->error)); if (xfer->error != USBD_ERR_CANCELLED) { /* try to clear stall first */ sc->sc_flags |= RUE_FLAG_WRITE_STALL; usbd_transfer_start(sc->sc_xfer[2]); } ifp->if_oerrors++; return; } } static void rue_cfg_tick(struct rue_softc *sc, struct rue_config_copy *cc, uint16_t refcount) { struct ifnet *ifp = sc->sc_ifp; struct mii_data *mii = GET_MII(sc); if ((ifp == NULL) || (mii == NULL)) { /* not ready */ return; } mii_tick(mii); mii_pollstat(mii); if ((sc->sc_flags & RUE_FLAG_WAIT_LINK) && (mii->mii_media_status & IFM_ACTIVE) && (IFM_SUBTYPE(mii->mii_media_active) != IFM_NONE)) { sc->sc_flags &= ~RUE_FLAG_WAIT_LINK; } sc->sc_media_active = mii->mii_media_active; sc->sc_media_status = mii->mii_media_status; /* start stopped transfers, if any */ rue_start_transfers(sc); return; } static void rue_start_cb(struct ifnet *ifp) { struct rue_softc *sc = ifp->if_softc; mtx_lock(&(sc->sc_mtx)); rue_start_transfers(sc); mtx_unlock(&(sc->sc_mtx)); return; } static void rue_start_transfers(struct rue_softc *sc) { if ((sc->sc_flags & RUE_FLAG_LL_READY) && (sc->sc_flags & RUE_FLAG_HL_READY)) { /* * start the USB transfers, if not already started: */ usbd_transfer_start(sc->sc_xfer[4]); usbd_transfer_start(sc->sc_xfer[1]); usbd_transfer_start(sc->sc_xfer[0]); } return; } static void rue_init_cb(void *arg) { struct rue_softc *sc = arg; mtx_lock(&(sc->sc_mtx)); usbd_config_td_queue_command (&(sc->sc_config_td), &rue_cfg_pre_init, &rue_cfg_init, 0, 0); mtx_unlock(&(sc->sc_mtx)); return; } static void rue_cfg_pre_init(struct rue_softc *sc, struct rue_config_copy *cc, uint16_t refcount) { struct ifnet *ifp = sc->sc_ifp; /* immediate configuration */ rue_cfg_pre_stop(sc, cc, 0); ifp->if_drv_flags |= IFF_DRV_RUNNING; sc->sc_flags |= RUE_FLAG_HL_READY; return; } static void rue_cfg_init(struct rue_softc *sc, struct rue_config_copy *cc, uint16_t refcount) { struct mii_data *mii = GET_MII(sc); uint16_t rxcfg; /* * Cancel pending I/O */ rue_cfg_stop(sc, cc, 0); /* set MAC address */ rue_cfg_write_mem(sc, RUE_IDR0, cc->if_lladdr, ETHER_ADDR_LEN); /* * Set the initial TX and RX configuration. */ rue_cfg_csr_write_1(sc, RUE_TCR, RUE_TCR_CONFIG); rxcfg = RUE_RCR_CONFIG; /* Set capture broadcast bit to capture broadcast frames. */ if (cc->if_flags & IFF_BROADCAST) rxcfg |= RUE_RCR_AB; else rxcfg &= ~RUE_RCR_AB; rue_cfg_csr_write_2(sc, RUE_RCR, rxcfg); /* Load the multicast filter */ rue_cfg_promisc_upd(sc, cc, 0); /* Enable RX and TX */ rue_cfg_csr_write_1(sc, RUE_CR, (RUE_CR_TE | RUE_CR_RE | RUE_CR_EP3CLREN)); mii_mediachg(mii); sc->sc_flags |= (RUE_FLAG_READ_STALL | RUE_FLAG_WRITE_STALL | RUE_FLAG_LL_READY); rue_start_transfers(sc); return; } /* * Set media options. */ static int rue_ifmedia_upd_cb(struct ifnet *ifp) { struct rue_softc *sc = ifp->if_softc; mtx_lock(&(sc->sc_mtx)); usbd_config_td_queue_command (&(sc->sc_config_td), NULL, &rue_cfg_ifmedia_upd, 0, 0); mtx_unlock(&(sc->sc_mtx)); return (0); } static void rue_cfg_ifmedia_upd(struct rue_softc *sc, struct rue_config_copy *cc, uint16_t refcount) { struct ifnet *ifp = sc->sc_ifp; struct mii_data *mii = GET_MII(sc); if ((ifp == NULL) || (mii == NULL)) { /* not ready */ return; } sc->sc_flags |= RUE_FLAG_WAIT_LINK; if (mii->mii_instance) { struct mii_softc *miisc; LIST_FOREACH(miisc, &mii->mii_phys, mii_list) { mii_phy_reset(miisc); } } mii_mediachg(mii); return; } /* * Report current media status. */ static void rue_ifmedia_sts_cb(struct ifnet *ifp, struct ifmediareq *ifmr) { struct rue_softc *sc = ifp->if_softc; mtx_lock(&(sc->sc_mtx)); ifmr->ifm_active = sc->sc_media_active; ifmr->ifm_status = sc->sc_media_status; mtx_unlock(&(sc->sc_mtx)); return; } static int rue_ioctl_cb(struct ifnet *ifp, u_long command, caddr_t data) { struct rue_softc *sc = ifp->if_softc; struct mii_data *mii; int error = 0; mtx_lock(&(sc->sc_mtx)); switch (command) { case SIOCSIFFLAGS: if (ifp->if_flags & IFF_UP) { if (ifp->if_drv_flags & IFF_DRV_RUNNING) { usbd_config_td_queue_command (&(sc->sc_config_td), &rue_config_copy, &rue_cfg_promisc_upd, 0, 0); } else { usbd_config_td_queue_command (&(sc->sc_config_td), &rue_cfg_pre_init, &rue_cfg_init, 0, 0); } } else { if (ifp->if_drv_flags & IFF_DRV_RUNNING) { usbd_config_td_queue_command (&(sc->sc_config_td), &rue_cfg_pre_stop, &rue_cfg_stop, 0, 0); } } break; case SIOCADDMULTI: case SIOCDELMULTI: usbd_config_td_queue_command (&(sc->sc_config_td), &rue_config_copy, &rue_cfg_promisc_upd, 0, 0); break; case SIOCGIFMEDIA: case SIOCSIFMEDIA: mii = GET_MII(sc); if (mii == NULL) { error = EINVAL; } else { error = ifmedia_ioctl (ifp, (void *)data, &(mii->mii_media), command); } break; default: error = ether_ioctl(ifp, command, data); break; } mtx_unlock(&(sc->sc_mtx)); return (error); } static void rue_watchdog(void *arg) { struct rue_softc *sc = arg; mtx_assert(&(sc->sc_mtx), MA_OWNED); usbd_config_td_queue_command (&(sc->sc_config_td), NULL, &rue_cfg_tick, 0, 0); usb_callout_reset(&(sc->sc_watchdog), hz, &rue_watchdog, sc); mtx_unlock(&(sc->sc_mtx)); return; } /* * NOTE: can be called when "ifp" is NULL */ static void rue_cfg_pre_stop(struct rue_softc *sc, struct rue_config_copy *cc, uint16_t refcount) { struct ifnet *ifp = sc->sc_ifp; if (cc) { /* copy the needed configuration */ rue_config_copy(sc, cc, refcount); } /* immediate configuration */ if (ifp) { /* clear flags */ ifp->if_drv_flags &= ~IFF_DRV_RUNNING; } sc->sc_flags &= ~(RUE_FLAG_HL_READY | RUE_FLAG_LL_READY); sc->sc_flags |= RUE_FLAG_WAIT_LINK; /* * stop all the transfers, if not already stopped: */ usbd_transfer_stop(sc->sc_xfer[0]); usbd_transfer_stop(sc->sc_xfer[1]); usbd_transfer_stop(sc->sc_xfer[2]); usbd_transfer_stop(sc->sc_xfer[3]); usbd_transfer_stop(sc->sc_xfer[4]); usbd_transfer_stop(sc->sc_xfer[5]); return; } static void rue_cfg_stop(struct rue_softc *sc, struct rue_config_copy *cc, uint16_t refcount) { rue_cfg_csr_write_1(sc, RUE_CR, 0x00); rue_cfg_reset(sc); return; } /* * Stop all chip I/O so that the kernel's probe routines don't * get confused by errant DMAs when rebooting. */ static int rue_shutdown(device_t dev) { struct rue_softc *sc = device_get_softc(dev); mtx_lock(&(sc->sc_mtx)); usbd_config_td_queue_command (&(sc->sc_config_td), &rue_cfg_pre_stop, &rue_cfg_stop, 0, 0); mtx_unlock(&(sc->sc_mtx)); return (0); }