diff options
Diffstat (limited to 'sys/dev/usb/net/if_rue.c')
-rw-r--r-- | sys/dev/usb/net/if_rue.c | 913 |
1 files changed, 913 insertions, 0 deletions
diff --git a/sys/dev/usb/net/if_rue.c b/sys/dev/usb/net/if_rue.c new file mode 100644 index 0000000..1d0f6ee --- /dev/null +++ b/sys/dev/usb/net/if_rue.c @@ -0,0 +1,913 @@ +/*- + * Copyright (c) 2001-2003, Shunsuke Akiyama <akiyama@FreeBSD.org>. + * Copyright (c) 1997, 1998, 1999, 2000 Bill Paul <wpaul@ee.columbia.edu>. + * 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 <wpaul@ee.columbia.edu>. 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 <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +/* + * RealTek RTL8150 USB to fast ethernet controller driver. + * Datasheet is available from + * ftp://ftp.realtek.com.tw/lancard/data_sheet/8150/. + */ + +#include "usbdevs.h" +#include <dev/usb/usb.h> +#include <dev/usb/usb_mfunc.h> +#include <dev/usb/usb_error.h> + +#define USB_DEBUG_VAR rue_debug + +#include <dev/usb/usb_core.h> +#include <dev/usb/usb_lookup.h> +#include <dev/usb/usb_process.h> +#include <dev/usb/usb_debug.h> +#include <dev/usb/usb_request.h> +#include <dev/usb/usb_busdma.h> +#include <dev/usb/usb_util.h> + +#include <dev/usb/net/usb_ethernet.h> +#include <dev/usb/net/if_ruereg.h> + +#if USB_DEBUG +static int rue_debug = 0; + +SYSCTL_NODE(_hw_usb2, OID_AUTO, rue, CTLFLAG_RW, 0, "USB rue"); +SYSCTL_INT(_hw_usb2_rue, OID_AUTO, debug, CTLFLAG_RW, + &rue_debug, 0, "Debug level"); +#endif + +/* + * Various supported device vendors/products. + */ + +static const struct usb2_device_id rue_devs[] = { + {USB_VPI(USB_VENDOR_MELCO, USB_PRODUCT_MELCO_LUAKTX, 0)}, + {USB_VPI(USB_VENDOR_REALTEK, USB_PRODUCT_REALTEK_USBKR100, 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 miibus_readreg_t rue_miibus_readreg; +static miibus_writereg_t rue_miibus_writereg; +static miibus_statchg_t rue_miibus_statchg; + +static usb2_callback_t rue_intr_callback; +static usb2_callback_t rue_bulk_read_callback; +static usb2_callback_t rue_bulk_write_callback; + +static usb2_ether_fn_t rue_attach_post; +static usb2_ether_fn_t rue_init; +static usb2_ether_fn_t rue_stop; +static usb2_ether_fn_t rue_start; +static usb2_ether_fn_t rue_tick; +static usb2_ether_fn_t rue_setmulti; +static usb2_ether_fn_t rue_setpromisc; + +static int rue_read_mem(struct rue_softc *, uint16_t, void *, int); +static int rue_write_mem(struct rue_softc *, uint16_t, void *, int); +static uint8_t rue_csr_read_1(struct rue_softc *, uint16_t); +static uint16_t rue_csr_read_2(struct rue_softc *, uint16_t); +static int rue_csr_write_1(struct rue_softc *, uint16_t, uint8_t); +static int rue_csr_write_2(struct rue_softc *, uint16_t, uint16_t); +static int rue_csr_write_4(struct rue_softc *, int, uint32_t); + +static void rue_reset(struct rue_softc *); +static int rue_ifmedia_upd(struct ifnet *); +static void rue_ifmedia_sts(struct ifnet *, struct ifmediareq *); + +static const struct usb2_config rue_config[RUE_N_TRANSFER] = { + + [RUE_BULK_DT_WR] = { + .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 */ + }, + + [RUE_BULK_DT_RD] = { + .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 */ + }, + + [RUE_INTR_DT_RD] = { + .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, + }, +}; + +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_miibus_readreg), + DEVMETHOD(miibus_writereg, rue_miibus_writereg), + DEVMETHOD(miibus_statchg, rue_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, ushub, rue_driver, rue_devclass, NULL, 0); +DRIVER_MODULE(miibus, rue, miibus_driver, miibus_devclass, 0, 0); +MODULE_DEPEND(rue, uether, 1, 1, 1); +MODULE_DEPEND(rue, usb, 1, 1, 1); +MODULE_DEPEND(rue, ether, 1, 1, 1); +MODULE_DEPEND(rue, miibus, 1, 1, 1); + +static const struct usb2_ether_methods rue_ue_methods = { + .ue_attach_post = rue_attach_post, + .ue_start = rue_start, + .ue_init = rue_init, + .ue_stop = rue_stop, + .ue_tick = rue_tick, + .ue_setmulti = rue_setmulti, + .ue_setpromisc = rue_setpromisc, + .ue_mii_upd = rue_ifmedia_upd, + .ue_mii_sts = rue_ifmedia_sts, +}; + +#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)) + +static int +rue_read_mem(struct rue_softc *sc, uint16_t addr, void *buf, int len) +{ + struct usb2_device_request req; + + req.bmRequestType = UT_READ_VENDOR_DEVICE; + req.bRequest = UR_SET_ADDRESS; + USETW(req.wValue, addr); + USETW(req.wIndex, 0); + USETW(req.wLength, len); + + return (usb2_ether_do_request(&sc->sc_ue, &req, buf, 1000)); +} + +static int +rue_write_mem(struct rue_softc *sc, uint16_t addr, void *buf, int len) +{ + struct usb2_device_request req; + + req.bmRequestType = UT_WRITE_VENDOR_DEVICE; + req.bRequest = UR_SET_ADDRESS; + USETW(req.wValue, addr); + USETW(req.wIndex, 0); + USETW(req.wLength, len); + + return (usb2_ether_do_request(&sc->sc_ue, &req, buf, 1000)); +} + +static uint8_t +rue_csr_read_1(struct rue_softc *sc, uint16_t reg) +{ + uint8_t val; + + rue_read_mem(sc, reg, &val, 1); + return (val); +} + +static uint16_t +rue_csr_read_2(struct rue_softc *sc, uint16_t reg) +{ + uint8_t val[2]; + + rue_read_mem(sc, reg, &val, 2); + return (UGETW(val)); +} + +static int +rue_csr_write_1(struct rue_softc *sc, uint16_t reg, uint8_t val) +{ + return (rue_write_mem(sc, reg, &val, 1)); +} + +static int +rue_csr_write_2(struct rue_softc *sc, uint16_t reg, uint16_t val) +{ + uint8_t temp[2]; + + USETW(temp, val); + return (rue_write_mem(sc, reg, &temp, 2)); +} + +static int +rue_csr_write_4(struct rue_softc *sc, int reg, uint32_t val) +{ + uint8_t temp[4]; + + USETDW(temp, val); + return (rue_write_mem(sc, reg, &temp, 4)); +} + +static int +rue_miibus_readreg(device_t dev, int phy, int reg) +{ + struct rue_softc *sc = device_get_softc(dev); + uint16_t rval; + uint16_t ruereg; + int locked; + + if (phy != 0) /* RTL8150 supports PHY == 0, only */ + return (0); + + locked = mtx_owned(&sc->sc_mtx); + if (!locked) + RUE_LOCK(sc); + + 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_csr_read_1(sc, reg); + goto done; + } + device_printf(sc->sc_ue.ue_dev, "bad phy register\n"); + rval = 0; + goto done; + } + + rval = rue_csr_read_2(sc, ruereg); +done: + if (!locked) + RUE_UNLOCK(sc); + return (rval); +} + +static int +rue_miibus_writereg(device_t dev, int phy, int reg, int data) +{ + struct rue_softc *sc = device_get_softc(dev); + uint16_t ruereg; + int locked; + + if (phy != 0) /* RTL8150 supports PHY == 0, only */ + return (0); + + locked = mtx_owned(&sc->sc_mtx); + if (!locked) + RUE_LOCK(sc); + + 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_csr_write_1(sc, reg, data); + goto done; + } + device_printf(sc->sc_ue.ue_dev, " bad phy register\n"); + goto done; + } + rue_csr_write_2(sc, ruereg, data); +done: + if (!locked) + RUE_UNLOCK(sc); + return (0); +} + +static void +rue_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; + int locked; + + locked = mtx_owned(&sc->sc_mtx); + if (!locked) + RUE_LOCK(sc); + + 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)); + + if (!locked) + RUE_UNLOCK(sc); +#endif +} + +static void +rue_setpromisc(struct usb2_ether *ue) +{ + struct rue_softc *sc = usb2_ether_getsc(ue); + struct ifnet *ifp = usb2_ether_getifp(ue); + + RUE_LOCK_ASSERT(sc, MA_OWNED); + + /* If we want promiscuous mode, set the allframes bit. */ + if (ifp->if_flags & IFF_PROMISC) + RUE_SETBIT(sc, RUE_RCR, RUE_RCR_AAP); + else + RUE_CLRBIT(sc, RUE_RCR, RUE_RCR_AAP); +} + +/* + * Program the 64-bit multicast hash filter. + */ +static void +rue_setmulti(struct usb2_ether *ue) +{ + struct rue_softc *sc = usb2_ether_getsc(ue); + struct ifnet *ifp = usb2_ether_getifp(ue); + uint16_t rxcfg; + int h = 0; + uint32_t hashes[2] = { 0, 0 }; + struct ifmultiaddr *ifma; + int mcnt = 0; + + RUE_LOCK_ASSERT(sc, MA_OWNED); + + 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_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) + hashes[0] |= (1 << h); + else + hashes[1] |= (1 << (h - 32)); + mcnt++; + } + IF_ADDR_UNLOCK(ifp); + + 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++) { + if (usb2_ether_pause(&sc->sc_ue, hz / 1000)) + break; + if (!(rue_csr_read_1(sc, RUE_CR) & RUE_CR_SOFT_RST)) + break; + } + if (i == RUE_TIMEOUT) + device_printf(sc->sc_ue.ue_dev, "reset never completed!\n"); + + usb2_ether_pause(&sc->sc_ue, hz / 100); +} + +static void +rue_attach_post(struct usb2_ether *ue) +{ + struct rue_softc *sc = usb2_ether_getsc(ue); + + /* reset the adapter */ + rue_reset(sc); + + /* get station address from the EEPROM */ + rue_read_mem(sc, RUE_EEPROM_IDR0, ue->ue_eaddr, ETHER_ADDR_LEN); +} + +/* + * Probe for a RTL8150 chip. + */ +static int +rue_probe(device_t dev) +{ + struct usb2_attach_arg *uaa = device_get_ivars(dev); + + if (uaa->usb2_mode != USB_MODE_HOST) + return (ENXIO); + if (uaa->info.bConfigIndex != RUE_CONFIG_IDX) + return (ENXIO); + if (uaa->info.bIfaceIndex != RUE_IFACE_IDX) + return (ENXIO); + + return (usb2_lookup_id_by_uaa(rue_devs, sizeof(rue_devs), uaa)); +} + +/* + * Attach the interface. Allocate softc structures, do ifmedia + * setup and ethernet/BPF attach. + */ +static int +rue_attach(device_t dev) +{ + struct usb2_attach_arg *uaa = device_get_ivars(dev); + struct rue_softc *sc = device_get_softc(dev); + struct usb2_ether *ue = &sc->sc_ue; + uint8_t iface_index; + int error; + + device_set_usb2_desc(dev); + mtx_init(&sc->sc_mtx, device_get_nameunit(dev), NULL, MTX_DEF); + + iface_index = RUE_IFACE_IDX; + error = usb2_transfer_setup(uaa->device, &iface_index, + sc->sc_xfer, rue_config, RUE_N_TRANSFER, + sc, &sc->sc_mtx); + if (error) { + device_printf(dev, "allocating USB transfers failed!\n"); + goto detach; + } + + ue->ue_sc = sc; + ue->ue_dev = dev; + ue->ue_udev = uaa->device; + ue->ue_mtx = &sc->sc_mtx; + ue->ue_methods = &rue_ue_methods; + + error = usb2_ether_ifattach(ue); + if (error) { + device_printf(dev, "could not attach interface\n"); + goto detach; + } + return (0); /* success */ + +detach: + rue_detach(dev); + return (ENXIO); /* failure */ +} + +static int +rue_detach(device_t dev) +{ + struct rue_softc *sc = device_get_softc(dev); + struct usb2_ether *ue = &sc->sc_ue; + + usb2_transfer_unsetup(sc->sc_xfer, RUE_N_TRANSFER); + usb2_ether_ifdetach(ue); + mtx_destroy(&sc->sc_mtx); + + return (0); +} + +static void +rue_intr_callback(struct usb2_xfer *xfer) +{ + struct rue_softc *sc = xfer->priv_sc; + struct ifnet *ifp = usb2_ether_getifp(&sc->sc_ue); + struct rue_intrpkt pkt; + + switch (USB_GET_STATE(xfer)) { + case USB_ST_TRANSFERRED: + + if (ifp && (ifp->if_drv_flags & IFF_DRV_RUNNING) && + (xfer->actlen >= sizeof(pkt))) { + + usb2_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; + } + /* FALLTHROUGH */ + case USB_ST_SETUP: +tr_setup: + xfer->frlengths[0] = xfer->max_data_length; + usb2_start_hardware(xfer); + return; + + default: /* Error */ + if (xfer->error != USB_ERR_CANCELLED) { + /* try to clear stall first */ + xfer->flags.stall_pipe = 1; + goto tr_setup; + } + return; + } +} + +static void +rue_bulk_read_callback(struct usb2_xfer *xfer) +{ + struct rue_softc *sc = xfer->priv_sc; + struct usb2_ether *ue = &sc->sc_ue; + struct ifnet *ifp = usb2_ether_getifp(ue); + uint16_t status; + + switch (USB_GET_STATE(xfer)) { + case USB_ST_TRANSFERRED: + + if (xfer->actlen < 4) { + ifp->if_ierrors++; + goto tr_setup; + } + usb2_copy_out(xfer->frbuffers, xfer->actlen - 4, + &status, sizeof(status)); + xfer->actlen -= 4; + + /* check recieve packet was valid or not */ + status = le16toh(status); + if ((status & RUE_RXSTAT_VALID) == 0) { + ifp->if_ierrors++; + goto tr_setup; + } + usb2_ether_rxbuf(ue, xfer->frbuffers, 0, xfer->actlen); + /* FALLTHROUGH */ + case USB_ST_SETUP: +tr_setup: + xfer->frlengths[0] = xfer->max_data_length; + usb2_start_hardware(xfer); + usb2_ether_rxflush(ue); + return; + + default: /* Error */ + DPRINTF("bulk read error, %s\n", + usb2_errstr(xfer->error)); + + if (xfer->error != USB_ERR_CANCELLED) { + /* try to clear stall first */ + xfer->flags.stall_pipe = 1; + goto tr_setup; + } + return; + } +} + +static void +rue_bulk_write_callback(struct usb2_xfer *xfer) +{ + struct rue_softc *sc = xfer->priv_sc; + struct ifnet *ifp = usb2_ether_getifp(&sc->sc_ue); + struct mbuf *m; + int temp_len; + + switch (USB_GET_STATE(xfer)) { + case USB_ST_TRANSFERRED: + DPRINTFN(11, "transfer complete\n"); + ifp->if_opackets++; + + /* FALLTHROUGH */ + case USB_ST_SETUP: +tr_setup: + if ((sc->sc_flags & RUE_FLAG_LINK) == 0) { + /* + * don't send anything if there is no link ! + */ + return; + } + IFQ_DRV_DEQUEUE(&ifp->if_snd, m); + + if (m == NULL) + return; + if (m->m_pkthdr.len > MCLBYTES) + m->m_pkthdr.len = MCLBYTES; + temp_len = m->m_pkthdr.len; + + usb2_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) { + usb2_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); + + usb2_start_hardware(xfer); + + return; + + default: /* Error */ + DPRINTFN(11, "transfer error, %s\n", + usb2_errstr(xfer->error)); + + ifp->if_oerrors++; + + if (xfer->error != USB_ERR_CANCELLED) { + /* try to clear stall first */ + xfer->flags.stall_pipe = 1; + goto tr_setup; + } + return; + } +} + +static void +rue_tick(struct usb2_ether *ue) +{ + struct rue_softc *sc = usb2_ether_getsc(ue); + struct mii_data *mii = GET_MII(sc); + + RUE_LOCK_ASSERT(sc, MA_OWNED); + + mii_tick(mii); + if ((sc->sc_flags & RUE_FLAG_LINK) == 0 + && mii->mii_media_status & IFM_ACTIVE && + IFM_SUBTYPE(mii->mii_media_active) != IFM_NONE) { + sc->sc_flags |= RUE_FLAG_LINK; + rue_start(ue); + } +} + +static void +rue_start(struct usb2_ether *ue) +{ + struct rue_softc *sc = usb2_ether_getsc(ue); + + /* + * start the USB transfers, if not already started: + */ + usb2_transfer_start(sc->sc_xfer[RUE_INTR_DT_RD]); + usb2_transfer_start(sc->sc_xfer[RUE_BULK_DT_RD]); + usb2_transfer_start(sc->sc_xfer[RUE_BULK_DT_WR]); +} + +static void +rue_init(struct usb2_ether *ue) +{ + struct rue_softc *sc = usb2_ether_getsc(ue); + struct ifnet *ifp = usb2_ether_getifp(ue); + + RUE_LOCK_ASSERT(sc, MA_OWNED); + + /* + * Cancel pending I/O + */ + rue_reset(sc); + + /* Set MAC address */ + rue_write_mem(sc, RUE_IDR0, IF_LLADDR(ifp), ETHER_ADDR_LEN); + + rue_stop(ue); + + /* + * Set the initial TX and RX configuration. + */ + rue_csr_write_1(sc, RUE_TCR, RUE_TCR_CONFIG); + rue_csr_write_2(sc, RUE_RCR, RUE_RCR_CONFIG|RUE_RCR_AB); + + /* Load the multicast filter */ + rue_setpromisc(ue); + /* Load the multicast filter. */ + rue_setmulti(ue); + + /* Enable RX and TX */ + rue_csr_write_1(sc, RUE_CR, (RUE_CR_TE | RUE_CR_RE | RUE_CR_EP3CLREN)); + + usb2_transfer_set_stall(sc->sc_xfer[RUE_BULK_DT_WR]); + + ifp->if_drv_flags |= IFF_DRV_RUNNING; + rue_start(ue); +} + +/* + * 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); + + RUE_LOCK_ASSERT(sc, MA_OWNED); + + sc->sc_flags &= ~RUE_FLAG_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 (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); + + RUE_LOCK(sc); + mii_pollstat(mii); + RUE_UNLOCK(sc); + ifmr->ifm_active = mii->mii_media_active; + ifmr->ifm_status = mii->mii_media_status; +} + +static void +rue_stop(struct usb2_ether *ue) +{ + struct rue_softc *sc = usb2_ether_getsc(ue); + struct ifnet *ifp = usb2_ether_getifp(ue); + + RUE_LOCK_ASSERT(sc, MA_OWNED); + + ifp->if_drv_flags &= ~IFF_DRV_RUNNING; + sc->sc_flags &= ~RUE_FLAG_LINK; + + /* + * stop all the transfers, if not already stopped: + */ + usb2_transfer_stop(sc->sc_xfer[RUE_BULK_DT_WR]); + usb2_transfer_stop(sc->sc_xfer[RUE_BULK_DT_RD]); + usb2_transfer_stop(sc->sc_xfer[RUE_INTR_DT_RD]); + + rue_csr_write_1(sc, RUE_CR, 0x00); + + rue_reset(sc); +} + +/* + * 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); + + usb2_ether_ifshutdown(&sc->sc_ue); + + return (0); +} |