diff options
Diffstat (limited to 'sys/dev/usb/if_rue.c')
| -rw-r--r-- | sys/dev/usb/if_rue.c | 1477 |
1 files changed, 1477 insertions, 0 deletions
diff --git a/sys/dev/usb/if_rue.c b/sys/dev/usb/if_rue.c new file mode 100644 index 0000000..9a6c15b --- /dev/null +++ b/sys/dev/usb/if_rue.c @@ -0,0 +1,1477 @@ +/*- + * Copyright (c) 2001-2003, Shunsuke Akiyama <akiyama@FreeBSD.org>. + * 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. + * + * $FreeBSD$ + */ + +/* + * RealTek RTL8150 USB to fast ethernet controller driver. + * Datasheet is available from + * ftp://ftp.realtek.com.tw/lancard/data_sheet/8150/. + */ + +#include <sys/param.h> +#include <sys/systm.h> +#include <sys/sockio.h> +#include <sys/mbuf.h> +#include <sys/malloc.h> +#include <sys/kernel.h> +#include <sys/socket.h> +#include <sys/sysctl.h> + +#include <net/if.h> +#include <net/if_arp.h> +#include <net/ethernet.h> +#include <net/if_dl.h> +#include <net/if_media.h> + +#include <net/bpf.h> + +#include <sys/bus.h> + +#include <dev/usb/usb.h> +#include <dev/usb/usbdi.h> +#include <dev/usb/usbdi_util.h> +#include <dev/usb/usbdivar.h> +#include <dev/usb/usbdevs.h> +#include <dev/usb/usb_ethersubr.h> + +#include <dev/mii/mii.h> +#include <dev/mii/miivar.h> + +#include <dev/usb/if_ruereg.h> + +/* "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 u_int8_t rue_calchash(caddr_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 u_int8_t +rue_calchash(caddr_t addr) +{ + u_int32_t crc, carry; + int i, j; + u_int8_t c; + + /* Compute CRC for the address value. */ + crc = 0xFFFFFFFF; /* initial value */ + + for (i = 0; i < 6; i++) { + c = *(addr + i); + for (j = 0; j < 8; j++) { + carry = ((crc & 0x80000000) ? 1 : 0) ^ (c & 0x01); + crc <<= 1; + c >>= 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 */ + TAILQ_FOREACH (ifma, &ifp->if_multiaddrs, ifma_link) { + if (ifma->ifma_addr->sa_family != AF_LINK) + continue; + h = rue_calchash(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; + } + } + + mtx_init(&sc->rue_mtx, device_get_nameunit(self), MTX_NETWORK_LOCK, + MTX_DEF | MTX_RECURSE); + 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; + } + + /* RealTek RTL8150 was detected */ + printf("rue%d: Ethernet address: %6D\n", sc->rue_unit, eaddr, ":"); + + bcopy(eaddr, (char *)&sc->arpcom.ac_enaddr, ETHER_ADDR_LEN); + + ifp = &sc->arpcom.ac_if; + ifp->if_softc = sc; + ifp->if_unit = sc->rue_unit; + ifp->if_name = "rue"; + 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 */ + ether_ifattach(ifp, eaddr); + 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); + mtx_destroy(&sc->rue_mtx); + 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); + ether_ifdetach(ifp); + + 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); + mtx_destroy(&sc->rue_mtx); + + 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_NOWAIT, 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_NOWAIT); + 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); +} |
