diff options
Diffstat (limited to 'sys/legacy/dev/usb/if_aue.c')
| -rw-r--r-- | sys/legacy/dev/usb/if_aue.c | 1498 |
1 files changed, 1498 insertions, 0 deletions
diff --git a/sys/legacy/dev/usb/if_aue.c b/sys/legacy/dev/usb/if_aue.c new file mode 100644 index 0000000..1c6d8a3 --- /dev/null +++ b/sys/legacy/dev/usb/if_aue.c @@ -0,0 +1,1498 @@ +/*- + * Copyright (c) 1997, 1998, 1999, 2000 + * Bill Paul <wpaul@ee.columbia.edu>. All rights reserved. + * + * Copyright (c) 2006 + * Alfred Perlstein <alfred@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. + * 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("$FreeBSD$"); + +/* + * ADMtek AN986 Pegasus and AN8511 Pegasus II USB to ethernet driver. + * Datasheet is available from http://www.admtek.com.tw. + * + * Written by Bill Paul <wpaul@ee.columbia.edu> + * Electrical Engineering Department + * Columbia University, New York City + * + * SMP locking by Alfred Perlstein <alfred@freebsd.org>. + * RED Inc. + */ + +/* + * The Pegasus chip uses four USB "endpoints" to provide 10/100 ethernet + * support: the control endpoint for reading/writing registers, burst + * read endpoint for packet reception, burst write for packet transmission + * and one for "interrupts." The chip uses the same RX filter scheme + * as the other ADMtek ethernet parts: one perfect filter entry for the + * the station address and a 64-bit multicast hash table. The chip supports + * both MII and HomePNA attachments. + * + * Since the maximum data transfer speed of USB is supposed to be 12Mbps, + * you're never really going to get 100Mbps speeds from this device. I + * think the idea is to allow the device to connect to 10 or 100Mbps + * networks, not necessarily to provide 100Mbps performance. Also, since + * the controller uses an external PHY chip, it's possible that board + * designers might simply choose a 10Mbps PHY. + * + * Registers are accessed using usbd_do_request(). Packet transfers are + * done using usbd_transfer() and friends. + */ + +#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/kdb.h> +#include <sys/lock.h> +#include <sys/module.h> +#include <sys/socket.h> +#include <sys/sx.h> +#include <sys/taskqueue.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/if_types.h> + +#include <net/bpf.h> + +#include <sys/bus.h> +#include <machine/bus.h> + +#include <dev/usb/usb.h> +#include <dev/usb/usbdi.h> +#include <dev/usb/usbdi_util.h> +#include <dev/usb/usbdivar.h> +#include "usbdevs.h" +#include <dev/usb/usb_ethersubr.h> + +#include <dev/mii/mii.h> +#include <dev/mii/miivar.h> + +#include <dev/usb/if_auereg.h> + +MODULE_DEPEND(aue, usb, 1, 1, 1); +MODULE_DEPEND(aue, ether, 1, 1, 1); +MODULE_DEPEND(aue, miibus, 1, 1, 1); + +/* "device miibus" required. See GENERIC if you get errors here. */ +#include "miibus_if.h" + +/* + * Various supported device vendors/products. + */ +struct aue_type { + struct usb_devno aue_dev; + u_int16_t aue_flags; +#define LSYS 0x0001 /* use Linksys reset */ +#define PNA 0x0002 /* has Home PNA */ +#define PII 0x0004 /* Pegasus II chip */ +}; + +static const struct aue_type aue_devs[] = { + {{ USB_VENDOR_3COM, USB_PRODUCT_3COM_3C460B}, PII }, + {{ USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_XX1}, PNA|PII }, + {{ USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_XX2}, PII }, + {{ USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_UFE1000}, LSYS }, + {{ USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_XX4}, PNA }, + {{ USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_XX5}, PNA }, + {{ USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_XX6}, PII }, + {{ USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_XX7}, PII }, + {{ USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_XX8}, PII }, + {{ USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_XX9}, PNA }, + {{ USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_XX10}, 0 }, + {{ USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_DSB650TX_PNA}, 0 }, + {{ USB_VENDOR_ACCTON, USB_PRODUCT_ACCTON_USB320_EC}, 0 }, + {{ USB_VENDOR_ACCTON, USB_PRODUCT_ACCTON_SS1001}, PII }, + {{ USB_VENDOR_ADMTEK, USB_PRODUCT_ADMTEK_PEGASUS}, PNA }, + {{ USB_VENDOR_ADMTEK, USB_PRODUCT_ADMTEK_PEGASUSII}, PII }, + {{ USB_VENDOR_ADMTEK, USB_PRODUCT_ADMTEK_PEGASUSII_2}, PII }, + {{ USB_VENDOR_ADMTEK, USB_PRODUCT_ADMTEK_PEGASUSII_3}, PII }, + {{ USB_VENDOR_ADMTEK, USB_PRODUCT_ADMTEK_PEGASUSII_4}, PII }, + {{ USB_VENDOR_AEI, USB_PRODUCT_AEI_FASTETHERNET}, PII }, + {{ USB_VENDOR_ALLIEDTELESYN, USB_PRODUCT_ALLIEDTELESYN_ATUSB100}, PII }, + {{ USB_VENDOR_ATEN, USB_PRODUCT_ATEN_UC110T}, PII }, + {{ USB_VENDOR_BELKIN, USB_PRODUCT_BELKIN_USB2LAN}, PII }, + {{ USB_VENDOR_BILLIONTON, USB_PRODUCT_BILLIONTON_USB100}, 0 }, + {{ USB_VENDOR_BILLIONTON, USB_PRODUCT_BILLIONTON_USBLP100}, PNA }, + {{ USB_VENDOR_BILLIONTON, USB_PRODUCT_BILLIONTON_USBEL100}, 0 }, + {{ USB_VENDOR_BILLIONTON, USB_PRODUCT_BILLIONTON_USBE100}, PII }, + {{ USB_VENDOR_COREGA, USB_PRODUCT_COREGA_FETHER_USB_TX}, 0 }, + {{ USB_VENDOR_COREGA, USB_PRODUCT_COREGA_FETHER_USB_TXS},PII }, + {{ USB_VENDOR_DLINK, USB_PRODUCT_DLINK_DSB650TX4}, LSYS|PII }, + {{ USB_VENDOR_DLINK, USB_PRODUCT_DLINK_DSB650TX1}, LSYS }, + {{ USB_VENDOR_DLINK, USB_PRODUCT_DLINK_DSB650TX}, LSYS }, + {{ USB_VENDOR_DLINK, USB_PRODUCT_DLINK_DSB650TX_PNA}, PNA }, + {{ USB_VENDOR_DLINK, USB_PRODUCT_DLINK_DSB650TX3}, LSYS|PII }, + {{ USB_VENDOR_DLINK, USB_PRODUCT_DLINK_DSB650TX2}, LSYS|PII }, + {{ USB_VENDOR_DLINK, USB_PRODUCT_DLINK_DSB650}, LSYS }, + {{ USB_VENDOR_ELCON, USB_PRODUCT_ELCON_PLAN}, PNA|PII }, + {{ USB_VENDOR_ELECOM, USB_PRODUCT_ELECOM_LDUSB20}, PII }, + {{ USB_VENDOR_ELECOM, USB_PRODUCT_ELECOM_LDUSBTX0}, 0 }, + {{ USB_VENDOR_ELECOM, USB_PRODUCT_ELECOM_LDUSBTX1}, LSYS }, + {{ USB_VENDOR_ELECOM, USB_PRODUCT_ELECOM_LDUSBTX2}, 0 }, + {{ USB_VENDOR_ELECOM, USB_PRODUCT_ELECOM_LDUSBTX3}, LSYS }, + {{ USB_VENDOR_ELECOM, USB_PRODUCT_ELECOM_LDUSBLTX}, PII }, + {{ USB_VENDOR_ELSA, USB_PRODUCT_ELSA_USB2ETHERNET}, 0 }, + {{ USB_VENDOR_GIGABYTE, USB_PRODUCT_GIGABYTE_GNBR402W}, 0 }, + {{ USB_VENDOR_HAWKING, USB_PRODUCT_HAWKING_UF100}, PII }, + {{ USB_VENDOR_HP, USB_PRODUCT_HP_HN210E}, PII }, + {{ USB_VENDOR_IODATA, USB_PRODUCT_IODATA_USBETTX}, 0 }, + {{ USB_VENDOR_IODATA, USB_PRODUCT_IODATA_USBETTXS}, PII }, + {{ USB_VENDOR_KINGSTON, USB_PRODUCT_KINGSTON_KNU101TX}, 0 }, + {{ USB_VENDOR_LINKSYS, USB_PRODUCT_LINKSYS_USB10TX1}, LSYS|PII }, + {{ USB_VENDOR_LINKSYS, USB_PRODUCT_LINKSYS_USB10T}, LSYS }, + {{ USB_VENDOR_LINKSYS, USB_PRODUCT_LINKSYS_USB100TX}, LSYS }, + {{ USB_VENDOR_LINKSYS, USB_PRODUCT_LINKSYS_USB100H1}, LSYS|PNA }, + {{ USB_VENDOR_LINKSYS, USB_PRODUCT_LINKSYS_USB10TA}, LSYS }, + {{ USB_VENDOR_LINKSYS, USB_PRODUCT_LINKSYS_USB10TX2}, LSYS|PII }, + {{ USB_VENDOR_MELCO, USB_PRODUCT_MELCO_LUATX1}, 0 }, + {{ USB_VENDOR_MELCO, USB_PRODUCT_MELCO_LUATX5}, 0 }, + {{ USB_VENDOR_MELCO, USB_PRODUCT_MELCO_LUA2TX5}, PII }, + {{ USB_VENDOR_MICROSOFT, USB_PRODUCT_MICROSOFT_MN110}, PII }, + {{ USB_VENDOR_NETGEAR, USB_PRODUCT_NETGEAR_FA101}, PII }, + {{ USB_VENDOR_SIEMENS, USB_PRODUCT_SIEMENS_SPEEDSTREAM}, PII }, + {{ USB_VENDOR_SIIG2, USB_PRODUCT_SIIG2_USBTOETHER}, PII }, + {{ USB_VENDOR_SMARTBRIDGES, USB_PRODUCT_SMARTBRIDGES_SMARTNIC},PII }, + {{ USB_VENDOR_SMC, USB_PRODUCT_SMC_2202USB}, 0 }, + {{ USB_VENDOR_SMC, USB_PRODUCT_SMC_2206USB}, PII }, + {{ USB_VENDOR_SOHOWARE, USB_PRODUCT_SOHOWARE_NUB100}, 0 }, + {{ USB_VENDOR_SOHOWARE, USB_PRODUCT_SOHOWARE_NUB110}, PII }, +}; +#define aue_lookup(v, p) ((const struct aue_type *)usb_lookup(aue_devs, v, p)) + +static device_probe_t aue_match; +static device_attach_t aue_attach; +static device_detach_t aue_detach; +static device_shutdown_t aue_shutdown; +static miibus_readreg_t aue_miibus_readreg; +static miibus_writereg_t aue_miibus_writereg; +static miibus_statchg_t aue_miibus_statchg; + +static void aue_reset_pegasus_II(struct aue_softc *sc); +static int aue_encap(struct aue_softc *, struct mbuf *, int); +#ifdef AUE_INTR_PIPE +static void aue_intr(usbd_xfer_handle, usbd_private_handle, usbd_status); +#endif +static void aue_rxeof(usbd_xfer_handle, usbd_private_handle, usbd_status); +static void aue_rxeof_thread(struct aue_softc *sc); +static void aue_txeof(usbd_xfer_handle, usbd_private_handle, usbd_status); +static void aue_txeof_thread(struct aue_softc *); +static void aue_task_sched(struct aue_softc *, int); +static void aue_task(void *xsc, int pending); +static void aue_tick(void *); +static void aue_rxstart(struct ifnet *); +static void aue_rxstart_thread(struct aue_softc *); +static void aue_start(struct ifnet *); +static void aue_start_thread(struct aue_softc *); +static int aue_ioctl(struct ifnet *, u_long, caddr_t); +static void aue_init(void *); +static void aue_init_body(struct aue_softc *); +static void aue_stop(struct aue_softc *); +static void aue_watchdog(struct aue_softc *); +static int aue_ifmedia_upd(struct ifnet *); +static void aue_ifmedia_sts(struct ifnet *, struct ifmediareq *); + +static void aue_eeprom_getword(struct aue_softc *, int, u_int16_t *); +static void aue_read_eeprom(struct aue_softc *, caddr_t, int, int, int); + +static void aue_setmulti(struct aue_softc *); +static void aue_reset(struct aue_softc *); + +static int aue_csr_read_1(struct aue_softc *, int); +static int aue_csr_write_1(struct aue_softc *, int, int); +static int aue_csr_read_2(struct aue_softc *, int); +static int aue_csr_write_2(struct aue_softc *, int, int); + +static device_method_t aue_methods[] = { + /* Device interface */ + DEVMETHOD(device_probe, aue_match), + DEVMETHOD(device_attach, aue_attach), + DEVMETHOD(device_detach, aue_detach), + DEVMETHOD(device_shutdown, aue_shutdown), + + /* bus interface */ + DEVMETHOD(bus_print_child, bus_generic_print_child), + DEVMETHOD(bus_driver_added, bus_generic_driver_added), + + /* MII interface */ + DEVMETHOD(miibus_readreg, aue_miibus_readreg), + DEVMETHOD(miibus_writereg, aue_miibus_writereg), + DEVMETHOD(miibus_statchg, aue_miibus_statchg), + + { 0, 0 } +}; + +static driver_t aue_driver = { + "aue", + aue_methods, + sizeof(struct aue_softc) +}; + +static devclass_t aue_devclass; + +DRIVER_MODULE(aue, uhub, aue_driver, aue_devclass, usbd_driver_load, 0); +DRIVER_MODULE(miibus, aue, miibus_driver, miibus_devclass, 0, 0); + +#define AUE_SETBIT(sc, reg, x) \ + aue_csr_write_1(sc, reg, aue_csr_read_1(sc, reg) | (x)) + +#define AUE_CLRBIT(sc, reg, x) \ + aue_csr_write_1(sc, reg, aue_csr_read_1(sc, reg) & ~(x)) + +static int +aue_csr_read_1(struct aue_softc *sc, int reg) +{ + usb_device_request_t req; + usbd_status err; + u_int8_t val = 0; + + AUE_SXASSERTLOCKED(sc); + + req.bmRequestType = UT_READ_VENDOR_DEVICE; + req.bRequest = AUE_UR_READREG; + USETW(req.wValue, 0); + USETW(req.wIndex, reg); + USETW(req.wLength, 1); + + err = usbd_do_request(sc->aue_udev, &req, &val); + + if (err) { + return (0); + } + + return (val); +} + +static int +aue_csr_read_2(struct aue_softc *sc, int reg) +{ + usb_device_request_t req; + usbd_status err; + u_int16_t val = 0; + + AUE_SXASSERTLOCKED(sc); + + req.bmRequestType = UT_READ_VENDOR_DEVICE; + req.bRequest = AUE_UR_READREG; + USETW(req.wValue, 0); + USETW(req.wIndex, reg); + USETW(req.wLength, 2); + + err = usbd_do_request(sc->aue_udev, &req, &val); + + if (err) { + return (0); + } + + return (val); +} + +static int +aue_csr_write_1(struct aue_softc *sc, int reg, int val) +{ + usb_device_request_t req; + usbd_status err; + + AUE_SXASSERTLOCKED(sc); + + req.bmRequestType = UT_WRITE_VENDOR_DEVICE; + req.bRequest = AUE_UR_WRITEREG; + USETW(req.wValue, val); + USETW(req.wIndex, reg); + USETW(req.wLength, 1); + + err = usbd_do_request(sc->aue_udev, &req, &val); + + if (err) { + return (-1); + } + + return (0); +} + +static int +aue_csr_write_2(struct aue_softc *sc, int reg, int val) +{ + usb_device_request_t req; + usbd_status err; + + AUE_SXASSERTLOCKED(sc); + + req.bmRequestType = UT_WRITE_VENDOR_DEVICE; + req.bRequest = AUE_UR_WRITEREG; + USETW(req.wValue, val); + USETW(req.wIndex, reg); + USETW(req.wLength, 2); + + err = usbd_do_request(sc->aue_udev, &req, &val); + + if (err) { + return (-1); + } + + return (0); +} + +/* + * Read a word of data stored in the EEPROM at address 'addr.' + */ +static void +aue_eeprom_getword(struct aue_softc *sc, int addr, u_int16_t *dest) +{ + int i; + u_int16_t word = 0; + + aue_csr_write_1(sc, AUE_EE_REG, addr); + aue_csr_write_1(sc, AUE_EE_CTL, AUE_EECTL_READ); + + for (i = 0; i < AUE_TIMEOUT; i++) { + if (aue_csr_read_1(sc, AUE_EE_CTL) & AUE_EECTL_DONE) + break; + } + + if (i == AUE_TIMEOUT) { + printf("aue%d: EEPROM read timed out\n", + sc->aue_unit); + } + + word = aue_csr_read_2(sc, AUE_EE_DATA); + *dest = word; + + return; +} + +/* + * Read a sequence of words from the EEPROM. + */ +static void +aue_read_eeprom(struct aue_softc *sc, caddr_t dest, int off, int cnt, int swap) +{ + int i; + u_int16_t word = 0, *ptr; + + for (i = 0; i < cnt; i++) { + aue_eeprom_getword(sc, off + i, &word); + ptr = (u_int16_t *)(dest + (i * 2)); + if (swap) + *ptr = ntohs(word); + else + *ptr = word; + } + + return; +} + +static int +aue_miibus_readreg(device_t dev, int phy, int reg) +{ + struct aue_softc *sc = device_get_softc(dev); + int i; + u_int16_t val = 0; + + /* + * The Am79C901 HomePNA PHY actually contains + * two transceivers: a 1Mbps HomePNA PHY and a + * 10Mbps full/half duplex ethernet PHY with + * NWAY autoneg. However in the ADMtek adapter, + * only the 1Mbps PHY is actually connected to + * anything, so we ignore the 10Mbps one. It + * happens to be configured for MII address 3, + * so we filter that out. + */ + if (sc->aue_vendor == USB_VENDOR_ADMTEK && + sc->aue_product == USB_PRODUCT_ADMTEK_PEGASUS) { + if (phy == 3) + return (0); +#ifdef notdef + if (phy != 1) + return (0); +#endif + } + + aue_csr_write_1(sc, AUE_PHY_ADDR, phy); + aue_csr_write_1(sc, AUE_PHY_CTL, reg | AUE_PHYCTL_READ); + + for (i = 0; i < AUE_TIMEOUT; i++) { + if (aue_csr_read_1(sc, AUE_PHY_CTL) & AUE_PHYCTL_DONE) + break; + } + + if (i == AUE_TIMEOUT) { + printf("aue%d: MII read timed out\n", sc->aue_unit); + } + + val = aue_csr_read_2(sc, AUE_PHY_DATA); + + return (val); +} + +static int +aue_miibus_writereg(device_t dev, int phy, int reg, int data) +{ + struct aue_softc *sc = device_get_softc(dev); + int i; + + if (phy == 3) + return (0); + + aue_csr_write_2(sc, AUE_PHY_DATA, data); + aue_csr_write_1(sc, AUE_PHY_ADDR, phy); + aue_csr_write_1(sc, AUE_PHY_CTL, reg | AUE_PHYCTL_WRITE); + + for (i = 0; i < AUE_TIMEOUT; i++) { + if (aue_csr_read_1(sc, AUE_PHY_CTL) & AUE_PHYCTL_DONE) + break; + } + + if (i == AUE_TIMEOUT) { + printf("aue%d: MII read timed out\n", + sc->aue_unit); + } + + return(0); +} + +static void +aue_miibus_statchg(device_t dev) +{ + struct aue_softc *sc = device_get_softc(dev); + struct mii_data *mii = GET_MII(sc); + + AUE_CLRBIT(sc, AUE_CTL0, AUE_CTL0_RX_ENB | AUE_CTL0_TX_ENB); + if (IFM_SUBTYPE(mii->mii_media_active) == IFM_100_TX) { + AUE_SETBIT(sc, AUE_CTL1, AUE_CTL1_SPEEDSEL); + } else { + AUE_CLRBIT(sc, AUE_CTL1, AUE_CTL1_SPEEDSEL); + } + + if ((mii->mii_media_active & IFM_GMASK) == IFM_FDX) + AUE_SETBIT(sc, AUE_CTL1, AUE_CTL1_DUPLEX); + else + AUE_CLRBIT(sc, AUE_CTL1, AUE_CTL1_DUPLEX); + + AUE_SETBIT(sc, AUE_CTL0, AUE_CTL0_RX_ENB | AUE_CTL0_TX_ENB); + + /* + * Set the LED modes on the LinkSys adapter. + * This turns on the 'dual link LED' bin in the auxmode + * register of the Broadcom PHY. + */ + if (sc->aue_flags & LSYS) { + u_int16_t auxmode; + auxmode = aue_miibus_readreg(dev, 0, 0x1b); + aue_miibus_writereg(dev, 0, 0x1b, auxmode | 0x04); + } + + return; +} + +#define AUE_BITS 6 + +static void +aue_setmulti(struct aue_softc *sc) +{ + struct ifnet *ifp; + struct ifmultiaddr *ifma; + u_int32_t h = 0, i; + u_int8_t hashtbl[8] = { 0, 0, 0, 0, 0, 0, 0, 0 }; + + AUE_SXASSERTLOCKED(sc); + ifp = sc->aue_ifp; + + if (ifp->if_flags & IFF_ALLMULTI || ifp->if_flags & IFF_PROMISC) { + AUE_SETBIT(sc, AUE_CTL0, AUE_CTL0_ALLMULTI); + return; + } + + AUE_CLRBIT(sc, AUE_CTL0, AUE_CTL0_ALLMULTI); + + /* 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_le(LLADDR((struct sockaddr_dl *) + ifma->ifma_addr), ETHER_ADDR_LEN) & ((1 << AUE_BITS) - 1); + hashtbl[(h >> 3)] |= 1 << (h & 0x7); + } + IF_ADDR_UNLOCK(ifp); + + /* write the hashtable */ + for (i = 0; i < 8; i++) + aue_csr_write_1(sc, AUE_MAR0 + i, hashtbl[i]); + + return; +} + +static void +aue_reset_pegasus_II(struct aue_softc *sc) +{ + /* Magic constants taken from Linux driver. */ + aue_csr_write_1(sc, AUE_REG_1D, 0); + aue_csr_write_1(sc, AUE_REG_7B, 2); +#if 0 + if ((sc->aue_flags & HAS_HOME_PNA) && mii_mode) + aue_csr_write_1(sc, AUE_REG_81, 6); + else +#endif + aue_csr_write_1(sc, AUE_REG_81, 2); +} + +static void +aue_reset(struct aue_softc *sc) +{ + int i; + + AUE_SXASSERTLOCKED(sc); + AUE_SETBIT(sc, AUE_CTL1, AUE_CTL1_RESETMAC); + + for (i = 0; i < AUE_TIMEOUT; i++) { + if (!(aue_csr_read_1(sc, AUE_CTL1) & AUE_CTL1_RESETMAC)) + break; + } + + if (i == AUE_TIMEOUT) + printf("aue%d: reset failed\n", sc->aue_unit); + + /* + * The PHY(s) attached to the Pegasus chip may be held + * in reset until we flip on the GPIO outputs. Make sure + * to set the GPIO pins high so that the PHY(s) will + * be enabled. + * + * Note: We force all of the GPIO pins low first, *then* + * enable the ones we want. + */ + aue_csr_write_1(sc, AUE_GPIO0, AUE_GPIO_OUT0|AUE_GPIO_SEL0); + aue_csr_write_1(sc, AUE_GPIO0, AUE_GPIO_OUT0|AUE_GPIO_SEL0|AUE_GPIO_SEL1); + + if (sc->aue_flags & LSYS) { + /* Grrr. LinkSys has to be different from everyone else. */ + aue_csr_write_1(sc, AUE_GPIO0, + AUE_GPIO_SEL0 | AUE_GPIO_SEL1); + aue_csr_write_1(sc, AUE_GPIO0, + AUE_GPIO_SEL0 | AUE_GPIO_SEL1 | AUE_GPIO_OUT0); + } + + if (sc->aue_flags & PII) + aue_reset_pegasus_II(sc); + + /* Wait a little while for the chip to get its brains in order. */ + DELAY(10000); + + return; +} + +/* + * Probe for a Pegasus chip. + */ +static int +aue_match(device_t self) +{ + struct usb_attach_arg *uaa = device_get_ivars(self); + + if (uaa->iface != NULL) + return (UMATCH_NONE); + + /* + * Belkin USB Bluetooth dongles of the F8T012xx1 model series conflict + * with older Belkin USB2LAN adapters. Skip if_aue if we detect one of + * the devices that look like Bluetooth adapters. + */ + if (uaa->vendor == USB_VENDOR_BELKIN && + uaa->product == USB_PRODUCT_BELKIN_F8T012 && uaa->release == 0x0413) + return (UMATCH_NONE); + + return (aue_lookup(uaa->vendor, uaa->product) != NULL ? + UMATCH_VENDOR_PRODUCT : UMATCH_NONE); +} + +/* + * Attach the interface. Allocate softc structures, do ifmedia + * setup and ethernet/BPF attach. + */ +static int +aue_attach(device_t self) +{ + struct aue_softc *sc = device_get_softc(self); + struct usb_attach_arg *uaa = device_get_ivars(self); + 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; + + sc->aue_dev = self; + sc->aue_udev = uaa->device; + sc->aue_unit = device_get_unit(self); + + if (usbd_set_config_no(sc->aue_udev, AUE_CONFIG_NO, 0)) { + device_printf(self, "getting interface handle failed\n"); + return ENXIO; + } + + err = usbd_device2interface_handle(uaa->device, AUE_IFACE_IDX, &iface); + if (err) { + device_printf(self, "getting interface handle failed\n"); + return ENXIO; + } + + sc->aue_iface = iface; + sc->aue_flags = aue_lookup(uaa->vendor, uaa->product)->aue_flags; + + sc->aue_product = uaa->product; + sc->aue_vendor = uaa->vendor; + + id = usbd_get_interface_descriptor(sc->aue_iface); + + /* Find endpoints. */ + for (i = 0; i < id->bNumEndpoints; i++) { + ed = usbd_interface2endpoint_descriptor(iface, i); + if (ed == NULL) { + device_printf(self, "couldn't get ep %d\n", i); + return ENXIO; + } + if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && + UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { + sc->aue_ed[AUE_ENDPT_RX] = ed->bEndpointAddress; + } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT && + UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { + sc->aue_ed[AUE_ENDPT_TX] = ed->bEndpointAddress; + } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && + UE_GET_XFERTYPE(ed->bmAttributes) == UE_INTERRUPT) { + sc->aue_ed[AUE_ENDPT_INTR] = ed->bEndpointAddress; + } + } + + mtx_init(&sc->aue_mtx, device_get_nameunit(self), MTX_NETWORK_LOCK, + MTX_DEF | MTX_RECURSE); + sx_init(&sc->aue_sx, device_get_nameunit(self)); + TASK_INIT(&sc->aue_task, 0, aue_task, sc); + usb_ether_task_init(self, 0, &sc->aue_taskqueue); + AUE_SXLOCK(sc); + + /* Reset the adapter. */ + aue_reset(sc); + + /* + * Get station address from the EEPROM. + */ + aue_read_eeprom(sc, (caddr_t)&eaddr, 0, 3, 0); + + ifp = sc->aue_ifp = if_alloc(IFT_ETHER); + if (ifp == NULL) { + device_printf(self, "can not if_alloc()\n"); + AUE_SXUNLOCK(sc); + mtx_destroy(&sc->aue_mtx); + sx_destroy(&sc->aue_sx); + usb_ether_task_destroy(&sc->aue_taskqueue); + return ENXIO; + } + ifp->if_softc = sc; + if_initname(ifp, "aue", sc->aue_unit); + ifp->if_mtu = ETHERMTU; + ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; + ifp->if_ioctl = aue_ioctl; + ifp->if_start = aue_start; + ifp->if_init = aue_init; + IFQ_SET_MAXLEN(&ifp->if_snd, IFQ_MAXLEN); + ifp->if_snd.ifq_drv_maxlen = IFQ_MAXLEN; + IFQ_SET_READY(&ifp->if_snd); + + /* + * Do MII setup. + * NOTE: Doing this causes child devices to be attached to us, + * which we would normally disconnect at in the detach routine + * using device_delete_child(). However the USB code is set up + * such that when this driver is removed, all children devices + * are removed as well. In effect, the USB code ends up detaching + * all of our children for us, so we don't have to do is ourselves + * in aue_detach(). It's important to point this out since if + * we *do* try to detach the child devices ourselves, we will + * end up getting the children deleted twice, which will crash + * the system. + */ + if (mii_phy_probe(self, &sc->aue_miibus, + aue_ifmedia_upd, aue_ifmedia_sts)) { + device_printf(self, "MII without any PHY!\n"); + if_free(ifp); + AUE_SXUNLOCK(sc); + mtx_destroy(&sc->aue_mtx); + sx_destroy(&sc->aue_sx); + usb_ether_task_destroy(&sc->aue_taskqueue); + return ENXIO; + } + + sc->aue_qdat.ifp = ifp; + sc->aue_qdat.if_rxstart = aue_rxstart; + + /* + * Call MI attach routine. + */ + ether_ifattach(ifp, eaddr); + usb_register_netisr(); + sc->aue_dying = 0; + sc->aue_link = 1; + + AUE_SXUNLOCK(sc); + return 0; +} + +static int +aue_detach(device_t dev) +{ + struct aue_softc *sc; + struct ifnet *ifp; + + sc = device_get_softc(dev); + AUE_SXLOCK(sc); + ifp = sc->aue_ifp; + ether_ifdetach(ifp); + sc->aue_dying = 1; + AUE_SXUNLOCK(sc); + callout_drain(&sc->aue_tick_callout); + usb_ether_task_drain(&sc->aue_taskqueue, &sc->aue_task); + usb_ether_task_destroy(&sc->aue_taskqueue); + if_free(ifp); + + if (sc->aue_ep[AUE_ENDPT_TX] != NULL) + usbd_abort_pipe(sc->aue_ep[AUE_ENDPT_TX]); + if (sc->aue_ep[AUE_ENDPT_RX] != NULL) + usbd_abort_pipe(sc->aue_ep[AUE_ENDPT_RX]); +#ifdef AUE_INTR_PIPE + if (sc->aue_ep[AUE_ENDPT_INTR] != NULL) + usbd_abort_pipe(sc->aue_ep[AUE_ENDPT_INTR]); +#endif + + mtx_destroy(&sc->aue_mtx); + sx_destroy(&sc->aue_sx); + + return (0); +} + +static void +aue_rxstart(struct ifnet *ifp) +{ + struct aue_softc *sc = ifp->if_softc; + aue_task_sched(sc, AUE_TASK_RXSTART); +} + +static void +aue_rxstart_thread(struct aue_softc *sc) +{ + struct ue_chain *c; + struct ifnet *ifp; + + ifp = sc->aue_ifp; + + sc = ifp->if_softc; + AUE_SXASSERTLOCKED(sc); + c = &sc->aue_cdata.ue_rx_chain[sc->aue_cdata.ue_rx_prod]; + + c->ue_mbuf = usb_ether_newbuf(); + if (c->ue_mbuf == NULL) { + device_printf(sc->aue_dev, "no memory for rx list -- packet " + "dropped!\n"); + ifp->if_ierrors++; + AUE_UNLOCK(sc); + return; + } + + /* Setup new transfer. */ + usbd_setup_xfer(c->ue_xfer, sc->aue_ep[AUE_ENDPT_RX], + c, mtod(c->ue_mbuf, char *), UE_BUFSZ, USBD_SHORT_XFER_OK, + USBD_NO_TIMEOUT, aue_rxeof); + usbd_transfer(c->ue_xfer); + + return; +} + +/* + * A frame has been uploaded: pass the resulting mbuf chain up to + * the higher level protocols. + */ +static void +aue_rxeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status) +{ + struct ue_chain *c = priv; + c->ue_status = status; + aue_task_sched(c->ue_sc, AUE_TASK_RXEOF); +} + +static void +aue_rxeof_thread(struct aue_softc *sc) +{ + struct ue_chain *c = &(sc->aue_cdata.ue_rx_chain[0]); + struct mbuf *m; + struct ifnet *ifp; + int total_len = 0; + struct aue_rxpkt r; + usbd_status status = c->ue_status; + + + AUE_SXASSERTLOCKED(sc); + ifp = sc->aue_ifp; + + if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) { + return; + } + + if (status != USBD_NORMAL_COMPLETION) { + if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) { + return; + } + if (usbd_ratecheck(&sc->aue_rx_notice)) + device_printf(sc->aue_dev, "usb error on rx: %s\n", + usbd_errstr(status)); + if (status == USBD_STALLED) + usbd_clear_endpoint_stall(sc->aue_ep[AUE_ENDPT_RX]); + goto done; + } + + usbd_get_xfer_status(c->ue_xfer, NULL, NULL, &total_len, NULL); + + if (total_len <= 4 + ETHER_CRC_LEN) { + ifp->if_ierrors++; + goto done; + } + + m = c->ue_mbuf; + bcopy(mtod(m, char *) + total_len - 4, (char *)&r, sizeof(r)); + + /* Turn off all the non-error bits in the rx status word. */ + r.aue_rxstat &= AUE_RXSTAT_MASK; + + if (r.aue_rxstat) { + ifp->if_ierrors++; + goto done; + } + + /* No errors; receive the packet. */ + total_len -= (4 + ETHER_CRC_LEN); + + ifp->if_ipackets++; + m->m_pkthdr.rcvif = (void *)&sc->aue_qdat; + m->m_pkthdr.len = m->m_len = total_len; + + /* Put the packet on the special USB input queue. */ + usb_ether_input(m); + return; +done: + + /* Setup new transfer. */ + usbd_setup_xfer(c->ue_xfer, sc->aue_ep[AUE_ENDPT_RX], + c, mtod(c->ue_mbuf, char *), UE_BUFSZ, USBD_SHORT_XFER_OK, + USBD_NO_TIMEOUT, aue_rxeof); + usbd_transfer(c->ue_xfer); + + return; +} + +/* + * A frame was downloaded to the chip. It's safe for us to clean up + * the list buffers. + */ + +static void +aue_txeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status) +{ + struct ue_chain *c = priv; + c->ue_status = status; + aue_task_sched(c->ue_sc, AUE_TASK_TXEOF); +} + +static void +aue_txeof_thread(struct aue_softc *sc) +{ + struct ue_chain *c = &(sc->aue_cdata.ue_tx_chain[0]); + struct ifnet *ifp; + usbd_status err, status; + + AUE_SXASSERTLOCKED(sc); + status = c->ue_status; + ifp = sc->aue_ifp; + + if (status != USBD_NORMAL_COMPLETION) { + if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) { + return; + } + device_printf(sc->aue_dev, "usb error on tx: %s\n", + usbd_errstr(status)); + if (status == USBD_STALLED) + usbd_clear_endpoint_stall(sc->aue_ep[AUE_ENDPT_TX]); + return; + } + + sc->aue_timer = 0; + ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; + usbd_get_xfer_status(c->ue_xfer, NULL, NULL, NULL, &err); + + if (c->ue_mbuf != NULL) { + c->ue_mbuf->m_pkthdr.rcvif = ifp; + usb_tx_done(c->ue_mbuf); + c->ue_mbuf = NULL; + } + + if (err) + ifp->if_oerrors++; + else + ifp->if_opackets++; + + return; +} + +static void +aue_tick(void *xsc) +{ + struct aue_softc *sc = xsc; + + aue_task_sched(sc, AUE_TASK_TICK); +} + +static void +aue_tick_thread(struct aue_softc *sc) +{ + struct ifnet *ifp; + struct mii_data *mii; + + AUE_SXASSERTLOCKED(sc); + ifp = sc->aue_ifp; + /* + * If a timer is set (non-zero) then decrement it + * and if it hits zero, then call the watchdog routine. + */ + if (sc->aue_timer != 0 && --sc->aue_timer == 0) { + aue_watchdog(sc); + } + if (ifp->if_drv_flags & IFF_DRV_RUNNING) { + return; + } + + mii = GET_MII(sc); + if (mii == NULL) { + goto resched; + } + + mii_tick(mii); + if (!sc->aue_link && mii->mii_media_status & IFM_ACTIVE && + IFM_SUBTYPE(mii->mii_media_active) != IFM_NONE) { + sc->aue_link++; + if (!IFQ_DRV_IS_EMPTY(&ifp->if_snd)) + aue_start_thread(sc); + } +resched: + (void) callout_reset(&sc->aue_tick_callout, hz, aue_tick, sc); + return; +} + +static int +aue_encap(struct aue_softc *sc, struct mbuf *m, int idx) +{ + int total_len; + struct ue_chain *c; + usbd_status err; + + AUE_SXASSERTLOCKED(sc); + + c = &sc->aue_cdata.ue_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->ue_buf + 2); + c->ue_mbuf = m; + + total_len = m->m_pkthdr.len + 2; + + /* + * The ADMtek documentation says that the packet length is + * supposed to be specified in the first two bytes of the + * transfer, however it actually seems to ignore this info + * and base the frame size on the bulk transfer length. + */ + c->ue_buf[0] = (u_int8_t)m->m_pkthdr.len; + c->ue_buf[1] = (u_int8_t)(m->m_pkthdr.len >> 8); + + usbd_setup_xfer(c->ue_xfer, sc->aue_ep[AUE_ENDPT_TX], + c, c->ue_buf, total_len, USBD_FORCE_SHORT_XFER, + 10000, aue_txeof); + + /* Transmit */ + err = usbd_transfer(c->ue_xfer); + if (err != USBD_IN_PROGRESS) { + aue_stop(sc); + return (EIO); + } + + sc->aue_cdata.ue_tx_cnt++; + + return (0); +} + + +static void +aue_start(struct ifnet *ifp) +{ + struct aue_softc *sc = ifp->if_softc; + aue_task_sched(sc, AUE_TASK_START); +} + +static void +aue_start_thread(struct aue_softc *sc) +{ + struct ifnet *ifp = sc->aue_ifp; + struct mbuf *m_head = NULL; + + AUE_SXASSERTLOCKED(sc); + + if (!sc->aue_link) { + return; + } + + if (ifp->if_drv_flags & IFF_DRV_OACTIVE) { + return; + } + + IFQ_DRV_DEQUEUE(&ifp->if_snd, m_head); + if (m_head == NULL) { + return; + } + + if (aue_encap(sc, m_head, 0)) { + IFQ_DRV_PREPEND(&ifp->if_snd, m_head); + ifp->if_drv_flags |= IFF_DRV_OACTIVE; + return; + } + + /* + * If there's a BPF listener, bounce a copy of this frame + * to him. + */ + BPF_MTAP(ifp, m_head); + + ifp->if_drv_flags |= IFF_DRV_OACTIVE; + + /* + * Set a timeout in case the chip goes out to lunch. + */ + sc->aue_timer = 5; + + return; +} + +static void +aue_init(void *xsc) +{ + struct aue_softc *sc = xsc; + + AUE_SXLOCK(sc); + aue_init_body(sc); + AUE_SXUNLOCK(sc); +} + +static void +aue_init_body(struct aue_softc *sc) +{ + struct ifnet *ifp = sc->aue_ifp; + struct mii_data *mii = GET_MII(sc); + struct ue_chain *c; + usbd_status err; + int i; + + AUE_SXASSERTLOCKED(sc); + + if (ifp->if_drv_flags & IFF_DRV_RUNNING) { + return; + } + + /* + * Cancel pending I/O and free all RX/TX buffers. + */ + aue_reset(sc); + + /* Set MAC address */ + for (i = 0; i < ETHER_ADDR_LEN; i++) + aue_csr_write_1(sc, AUE_PAR0 + i, IF_LLADDR(sc->aue_ifp)[i]); + + /* If we want promiscuous mode, set the allframes bit. */ + if (ifp->if_flags & IFF_PROMISC) + AUE_SETBIT(sc, AUE_CTL2, AUE_CTL2_RX_PROMISC); + else + AUE_CLRBIT(sc, AUE_CTL2, AUE_CTL2_RX_PROMISC); + + /* Init TX ring. */ + if (usb_ether_tx_list_init(sc, &sc->aue_cdata, + sc->aue_udev) == ENOBUFS) { + device_printf(sc->aue_dev, "tx list init failed\n"); + return; + } + + /* Init RX ring. */ + if (usb_ether_rx_list_init(sc, &sc->aue_cdata, + sc->aue_udev) == ENOBUFS) { + device_printf(sc->aue_dev, "rx list init failed\n"); + return; + } + + + /* Load the multicast filter. */ + aue_setmulti(sc); + + /* Enable RX and TX */ + aue_csr_write_1(sc, AUE_CTL0, AUE_CTL0_RXSTAT_APPEND | AUE_CTL0_RX_ENB); + AUE_SETBIT(sc, AUE_CTL0, AUE_CTL0_TX_ENB); + AUE_SETBIT(sc, AUE_CTL2, AUE_CTL2_EP3_CLR); + + mii_mediachg(mii); + + /* Open RX and TX pipes. */ + err = usbd_open_pipe(sc->aue_iface, sc->aue_ed[AUE_ENDPT_RX], + USBD_EXCLUSIVE_USE, &sc->aue_ep[AUE_ENDPT_RX]); + if (err) { + device_printf(sc->aue_dev, "open rx pipe failed: %s\n", + usbd_errstr(err)); + return; + } + err = usbd_open_pipe(sc->aue_iface, sc->aue_ed[AUE_ENDPT_TX], + USBD_EXCLUSIVE_USE, &sc->aue_ep[AUE_ENDPT_TX]); + if (err) { + device_printf(sc->aue_dev, "open tx pipe failed: %s\n", + usbd_errstr(err)); + return; + } + + + /* Start up the receive pipe. */ + for (i = 0; i < UE_RX_LIST_CNT; i++) { + c = &sc->aue_cdata.ue_rx_chain[i]; + usbd_setup_xfer(c->ue_xfer, sc->aue_ep[AUE_ENDPT_RX], + c, mtod(c->ue_mbuf, char *), UE_BUFSZ, + USBD_SHORT_XFER_OK, USBD_NO_TIMEOUT, aue_rxeof); + usbd_transfer(c->ue_xfer); + } + + ifp->if_drv_flags |= IFF_DRV_RUNNING; + ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; + + callout_init(&sc->aue_tick_callout, CALLOUT_MPSAFE); + (void) callout_reset(&sc->aue_tick_callout, hz, aue_tick, sc); + return; +} + +/* + * Set media options. + */ +static int +aue_ifmedia_upd(struct ifnet *ifp) +{ + struct aue_softc *sc = ifp->if_softc; + struct mii_data *mii = GET_MII(sc); + + sc->aue_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); + sc->aue_link = 1; + + return (0); +} + +/* + * Report current media status. + */ +static void +aue_ifmedia_sts(struct ifnet *ifp, struct ifmediareq *ifmr) +{ + struct aue_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; + + return; +} + +static int +aue_ioctl(struct ifnet *ifp, u_long command, caddr_t data) +{ + struct aue_softc *sc = ifp->if_softc; + struct ifreq *ifr = (struct ifreq *)data; + struct mii_data *mii; + int error = 0; + + /* + * This prevents recursion in the interface while it's + * being torn down. + */ + if (sc->aue_dying) + return(0); + + AUE_GIANTLOCK(); + + switch(command) { + case SIOCSIFFLAGS: + AUE_SXLOCK(sc); + if (ifp->if_flags & IFF_UP) { + if (ifp->if_drv_flags & IFF_DRV_RUNNING && + ifp->if_flags & IFF_PROMISC && + !(sc->aue_if_flags & IFF_PROMISC)) { + AUE_SETBIT(sc, AUE_CTL2, AUE_CTL2_RX_PROMISC); + } else if (ifp->if_drv_flags & IFF_DRV_RUNNING && + !(ifp->if_flags & IFF_PROMISC) && + sc->aue_if_flags & IFF_PROMISC) { + AUE_CLRBIT(sc, AUE_CTL2, AUE_CTL2_RX_PROMISC); + } else if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) { + aue_init_body(sc); + } + sc->aue_dying = 0; + } else { + if (ifp->if_drv_flags & IFF_DRV_RUNNING) + aue_stop(sc); + } + sc->aue_if_flags = ifp->if_flags; + AUE_SXUNLOCK(sc); + break; + case SIOCADDMULTI: + case SIOCDELMULTI: + AUE_SXLOCK(sc); + aue_setmulti(sc); + AUE_SXUNLOCK(sc); + break; + case SIOCGIFMEDIA: + case SIOCSIFMEDIA: + AUE_SXLOCK(sc); + mii = GET_MII(sc); + error = ifmedia_ioctl(ifp, ifr, &mii->mii_media, command); + AUE_SXUNLOCK(sc); + break; + default: + error = ether_ioctl(ifp, command, data); + break; + } + + AUE_GIANTUNLOCK(); + + return (error); +} + +static void +aue_watchdog(struct aue_softc *sc) +{ + struct ifnet *ifp = sc->aue_ifp; + struct ue_chain *c; + usbd_status stat; + + AUE_SXASSERTLOCKED(sc); + ifp->if_oerrors++; + device_printf(sc->aue_dev, "watchdog timeout\n"); + + c = &sc->aue_cdata.ue_tx_chain[0]; + usbd_get_xfer_status(c->ue_xfer, NULL, NULL, NULL, &stat); + c->ue_status = stat; + aue_txeof_thread(sc); + + if (!IFQ_IS_EMPTY(&ifp->if_snd)) + aue_start_thread(sc); + return; +} + +/* + * Stop the adapter and free any mbufs allocated to the + * RX and TX lists. + */ +static void +aue_stop(struct aue_softc *sc) +{ + usbd_status err; + struct ifnet *ifp; + + AUE_SXASSERTLOCKED(sc); + ifp = sc->aue_ifp; + sc->aue_timer = 0; + + aue_csr_write_1(sc, AUE_CTL0, 0); + aue_csr_write_1(sc, AUE_CTL1, 0); + aue_reset(sc); + sc->aue_dying = 1; + + /* Stop transfers. */ + if (sc->aue_ep[AUE_ENDPT_RX] != NULL) { + err = usbd_abort_pipe(sc->aue_ep[AUE_ENDPT_RX]); + if (err) { + device_printf(sc->aue_dev, + "abort rx pipe failed: %s\n", usbd_errstr(err)); + } + err = usbd_close_pipe(sc->aue_ep[AUE_ENDPT_RX]); + if (err) { + device_printf(sc->aue_dev, + "close rx pipe failed: %s\n", usbd_errstr(err)); + } + sc->aue_ep[AUE_ENDPT_RX] = NULL; + } + + if (sc->aue_ep[AUE_ENDPT_TX] != NULL) { + err = usbd_abort_pipe(sc->aue_ep[AUE_ENDPT_TX]); + if (err) { + device_printf(sc->aue_dev, + "abort tx pipe failed: %s\n", usbd_errstr(err)); + } + err = usbd_close_pipe(sc->aue_ep[AUE_ENDPT_TX]); + if (err) { + device_printf(sc->aue_dev, + "close tx pipe failed: %s\n", usbd_errstr(err)); + } + sc->aue_ep[AUE_ENDPT_TX] = NULL; + } + +#ifdef AUE_INTR_PIPE + if (sc->aue_ep[AUE_ENDPT_INTR] != NULL) { + err = usbd_abort_pipe(sc->aue_ep[AUE_ENDPT_INTR]); + if (err) { + device_printf(sc->aue_dev, + "abort intr pipe failed: %s\n", usbd_errstr(err)); + } + err = usbd_close_pipe(sc->aue_ep[AUE_ENDPT_INTR]); + if (err) { + device_printf(sc->aue_dev, + "close intr pipe failed: %s\n", usbd_errstr(err)); + } + sc->aue_ep[AUE_ENDPT_INTR] = NULL; + } +#endif + + /* Free RX resources. */ + usb_ether_rx_list_free(&sc->aue_cdata); + /* Free TX resources. */ + usb_ether_tx_list_free(&sc->aue_cdata); + +#ifdef AUE_INTR_PIPE + free(sc->aue_cdata.ue_ibuf, M_USBDEV); + sc->aue_cdata.ue_ibuf = NULL; +#endif + + sc->aue_link = 0; + + ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE); + + return; +} + +/* + * Stop all chip I/O so that the kernel's probe routines don't + * get confused by errant DMAs when rebooting. + */ +static int +aue_shutdown(device_t dev) +{ + struct aue_softc *sc; + + sc = device_get_softc(dev); + AUE_SXLOCK(sc); + sc->aue_dying++; + aue_reset(sc); + aue_stop(sc); + AUE_SXUNLOCK(sc); + + return (0); +} + +static void +aue_task_sched(struct aue_softc *sc, int task) +{ + + AUE_LOCK(sc); + sc->aue_deferedtasks |= task; + usb_ether_task_enqueue(&sc->aue_taskqueue, &sc->aue_task); + AUE_UNLOCK(sc); +} + +/* + * We defer all interrupt operations to this function. + * + * This allows us to do more complex operations, such as synchronous + * usb io that normally would not be allowed from interrupt context. + */ +static void +aue_task(void *arg, int pending) +{ + struct aue_softc *sc = arg; + int tasks; + + for ( ;; ) { + AUE_LOCK(sc); + tasks = sc->aue_deferedtasks; + sc->aue_deferedtasks = 0; + AUE_UNLOCK(sc); + + if (tasks == 0) + break; + + AUE_GIANTLOCK(); // XXX: usb not giant safe + AUE_SXLOCK(sc); + if (sc->aue_dying) { + AUE_SXUNLOCK(sc); + break; + } + if ((tasks & AUE_TASK_TICK) != 0) { + aue_tick_thread(sc); + } + if ((tasks & AUE_TASK_START) != 0) { + aue_start_thread(sc); + } + if ((tasks & AUE_TASK_RXSTART) != 0) { + aue_rxstart_thread(sc); + } + if ((tasks & AUE_TASK_RXEOF) != 0) { + aue_rxeof_thread(sc); + } + if ((tasks & AUE_TASK_TXEOF) != 0) { + aue_txeof_thread(sc); + } + AUE_SXUNLOCK(sc); + AUE_GIANTUNLOCK(); // XXX: usb not giant safe + } +} + |
