diff options
Diffstat (limited to 'sys/dev/dc')
| -rw-r--r-- | sys/dev/dc/dcphy.c | 461 | ||||
| -rw-r--r-- | sys/dev/dc/if_dc.c | 3626 | ||||
| -rw-r--r-- | sys/dev/dc/if_dcreg.h | 1185 | ||||
| -rw-r--r-- | sys/dev/dc/pnphy.c | 276 |
4 files changed, 5548 insertions, 0 deletions
diff --git a/sys/dev/dc/dcphy.c b/sys/dev/dc/dcphy.c new file mode 100644 index 0000000..7c92e62 --- /dev/null +++ b/sys/dev/dc/dcphy.c @@ -0,0 +1,461 @@ +/* + * Copyright (c) 1997, 1998, 1999 + * 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. + */ + +/* + * Pseudo-driver for internal NWAY support on DEC 21143 and workalike + * controllers. Technically we're abusing the miibus code to handle + * media selection and NWAY support here since there is no MII + * interface. However the logical operations are roughly the same, + * and the alternative is to create a fake MII interface in the driver, + * which is harder to do. + */ + +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +#include <sys/param.h> +#include <sys/systm.h> +#include <sys/kernel.h> +#include <sys/socket.h> +#include <sys/errno.h> +#include <sys/lock.h> +#include <sys/module.h> +#include <sys/mutex.h> +#include <sys/bus.h> + +#include <net/if.h> +#include <net/if_arp.h> +#include <net/if_media.h> + +#include <dev/mii/mii.h> +#include <dev/mii/miivar.h> +#include "miidevs.h" + +#include <machine/bus_pio.h> +#include <machine/bus_memio.h> +#include <machine/bus.h> +#include <machine/resource.h> +#include <sys/bus.h> + +#include <pci/pcivar.h> + +#include <pci/if_dcreg.h> + +#include "miibus_if.h" + +#define DC_SETBIT(sc, reg, x) \ + CSR_WRITE_4(sc, reg, \ + CSR_READ_4(sc, reg) | x) + +#define DC_CLRBIT(sc, reg, x) \ + CSR_WRITE_4(sc, reg, \ + CSR_READ_4(sc, reg) & ~x) + +#define MIIF_AUTOTIMEOUT 0x0004 + +/* + * This is the subsystem ID for the built-in 21143 ethernet + * in several Compaq Presario systems. Apparently these are + * 10Mbps only, so we need to treat them specially. + */ +#define COMPAQ_PRESARIO_ID 0xb0bb0e11 + +static int dcphy_probe(device_t); +static int dcphy_attach(device_t); + +static device_method_t dcphy_methods[] = { + /* device interface */ + DEVMETHOD(device_probe, dcphy_probe), + DEVMETHOD(device_attach, dcphy_attach), + DEVMETHOD(device_detach, mii_phy_detach), + DEVMETHOD(device_shutdown, bus_generic_shutdown), + { 0, 0 } +}; + +static devclass_t dcphy_devclass; + +static driver_t dcphy_driver = { + "dcphy", + dcphy_methods, + sizeof(struct mii_softc) +}; + +DRIVER_MODULE(dcphy, miibus, dcphy_driver, dcphy_devclass, 0, 0); + +static int dcphy_service(struct mii_softc *, struct mii_data *, int); +static void dcphy_status(struct mii_softc *); +static void dcphy_reset(struct mii_softc *); +static int dcphy_auto(struct mii_softc *); + +static int +dcphy_probe(dev) + device_t dev; +{ + struct mii_attach_args *ma; + + ma = device_get_ivars(dev); + + /* + * The dc driver will report the 21143 vendor and device + * ID to let us know that it wants us to attach. + */ + if (ma->mii_id1 != DC_VENDORID_DEC || + ma->mii_id2 != DC_DEVICEID_21143) + return(ENXIO); + + device_set_desc(dev, "Intel 21143 NWAY media interface"); + + return (0); +} + +static int +dcphy_attach(dev) + device_t dev; +{ + struct mii_softc *sc; + struct mii_attach_args *ma; + struct mii_data *mii; + struct dc_softc *dc_sc; + + sc = device_get_softc(dev); + ma = device_get_ivars(dev); + sc->mii_dev = device_get_parent(dev); + mii = device_get_softc(sc->mii_dev); + LIST_INSERT_HEAD(&mii->mii_phys, sc, mii_list); + + sc->mii_inst = mii->mii_instance; + sc->mii_phy = ma->mii_phyno; + sc->mii_service = dcphy_service; + sc->mii_pdata = mii; + + sc->mii_flags |= MIIF_NOISOLATE; + mii->mii_instance++; + +#define ADD(m, c) ifmedia_add(&mii->mii_media, (m), (c), NULL) + + ADD(IFM_MAKEWORD(IFM_ETHER, IFM_NONE, 0, sc->mii_inst), + BMCR_ISO); + + /*dcphy_reset(sc);*/ + dc_sc = mii->mii_ifp->if_softc; + CSR_WRITE_4(dc_sc, DC_10BTSTAT, 0); + CSR_WRITE_4(dc_sc, DC_10BTCTRL, 0); + + switch(pci_read_config(device_get_parent(sc->mii_dev), + DC_PCI_CSID, 4)) { + case COMPAQ_PRESARIO_ID: + /* Example of how to only allow 10Mbps modes. */ + sc->mii_capabilities = BMSR_ANEG|BMSR_10TFDX|BMSR_10THDX; + break; + default: + if (dc_sc->dc_pmode == DC_PMODE_SIA) { + sc->mii_capabilities = + BMSR_ANEG|BMSR_10TFDX|BMSR_10THDX; + } else { + ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_TX, IFM_LOOP, + sc->mii_inst), BMCR_LOOP|BMCR_S100); + + sc->mii_capabilities = + BMSR_ANEG|BMSR_100TXFDX|BMSR_100TXHDX| + BMSR_10TFDX|BMSR_10THDX; + } + break; + } + + sc->mii_capabilities &= ma->mii_capmask; + device_printf(dev, " "); + mii_add_media(sc); + printf("\n"); +#undef ADD + + MIIBUS_MEDIAINIT(sc->mii_dev); + return(0); +} + +static int +dcphy_service(sc, mii, cmd) + struct mii_softc *sc; + struct mii_data *mii; + int cmd; +{ + struct dc_softc *dc_sc; + struct ifmedia_entry *ife = mii->mii_media.ifm_cur; + int reg; + u_int32_t mode; + + dc_sc = mii->mii_ifp->if_softc; + + switch (cmd) { + case MII_POLLSTAT: + /* + * If we're not polling our PHY instance, just return. + */ + if (IFM_INST(ife->ifm_media) != sc->mii_inst) { + return (0); + } + break; + + case MII_MEDIACHG: + /* + * If the media indicates a different PHY instance, + * isolate ourselves. + */ + if (IFM_INST(ife->ifm_media) != sc->mii_inst) { + return (0); + } + + /* + * If the interface is not up, don't do anything. + */ + if ((mii->mii_ifp->if_flags & IFF_UP) == 0) + break; + + sc->mii_flags = 0; + mii->mii_media_active = IFM_NONE; + mode = CSR_READ_4(dc_sc, DC_NETCFG); + mode &= ~(DC_NETCFG_FULLDUPLEX|DC_NETCFG_PORTSEL| + DC_NETCFG_PCS|DC_NETCFG_SCRAMBLER|DC_NETCFG_SPEEDSEL); + + switch (IFM_SUBTYPE(ife->ifm_media)) { + case IFM_AUTO: + /*dcphy_reset(sc);*/ + (void) dcphy_auto(sc); + break; + case IFM_100_T4: + /* + * XXX Not supported as a manual setting right now. + */ + return (EINVAL); + case IFM_100_TX: + dcphy_reset(sc); + DC_CLRBIT(dc_sc, DC_10BTCTRL, DC_TCTL_AUTONEGENBL); + mode |= DC_NETCFG_PORTSEL|DC_NETCFG_PCS| + DC_NETCFG_SCRAMBLER; + if ((ife->ifm_media & IFM_GMASK) == IFM_FDX) + mode |= DC_NETCFG_FULLDUPLEX; + else + mode &= ~DC_NETCFG_FULLDUPLEX; + CSR_WRITE_4(dc_sc, DC_NETCFG, mode); + break; + case IFM_10_T: + DC_CLRBIT(dc_sc, DC_SIARESET, DC_SIA_RESET); + DC_CLRBIT(dc_sc, DC_10BTCTRL, 0xFFFF); + if ((ife->ifm_media & IFM_GMASK) == IFM_FDX) + DC_SETBIT(dc_sc, DC_10BTCTRL, 0x7F3D); + else + DC_SETBIT(dc_sc, DC_10BTCTRL, 0x7F3F); + DC_SETBIT(dc_sc, DC_SIARESET, DC_SIA_RESET); + DC_CLRBIT(dc_sc, DC_10BTCTRL, DC_TCTL_AUTONEGENBL); + mode &= ~DC_NETCFG_PORTSEL; + mode |= DC_NETCFG_SPEEDSEL; + if ((ife->ifm_media & IFM_GMASK) == IFM_FDX) + mode |= DC_NETCFG_FULLDUPLEX; + else + mode &= ~DC_NETCFG_FULLDUPLEX; + CSR_WRITE_4(dc_sc, DC_NETCFG, mode); + break; + default: + return(EINVAL); + } + break; + + case MII_TICK: + /* + * If we're not currently selected, just return. + */ + if (IFM_INST(ife->ifm_media) != sc->mii_inst) + return (0); + + /* + * Is the interface even up? + */ + if ((mii->mii_ifp->if_flags & IFF_UP) == 0) + return (0); + + /* + * Only used for autonegotiation. + */ + if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) + break; + + reg = CSR_READ_4(dc_sc, DC_10BTSTAT); + if (!(reg & DC_TSTAT_LS10) || !(reg & DC_TSTAT_LS100)) + break; + + /* + * Only retry autonegotiation every 5 seconds. + * + * Otherwise, fall through to calling dcphy_status() + * since real Intel 21143 chips don't show valid link + * status until autonegotiation is switched off, and + * that only happens in dcphy_status(). Without this, + * successful autonegotation is never recognised on + * these chips. + */ + if (++sc->mii_ticks != 50) + break; + + sc->mii_ticks = 0; + dcphy_auto(sc); + + break; + } + + /* Update the media status. */ + dcphy_status(sc); + + /* Callback if something changed. */ + mii_phy_update(sc, cmd); + return (0); +} + +static void +dcphy_status(sc) + struct mii_softc *sc; +{ + struct mii_data *mii = sc->mii_pdata; + int reg, anlpar, tstat = 0; + struct dc_softc *dc_sc; + + dc_sc = mii->mii_ifp->if_softc; + + mii->mii_media_status = IFM_AVALID; + mii->mii_media_active = IFM_ETHER; + + if ((mii->mii_ifp->if_flags & IFF_UP) == 0) + return; + + reg = CSR_READ_4(dc_sc, DC_10BTSTAT); + if (!(reg & DC_TSTAT_LS10) || !(reg & DC_TSTAT_LS100)) + mii->mii_media_status |= IFM_ACTIVE; + + if (CSR_READ_4(dc_sc, DC_10BTCTRL) & DC_TCTL_AUTONEGENBL) { + /* Erg, still trying, I guess... */ + tstat = CSR_READ_4(dc_sc, DC_10BTSTAT); + if ((tstat & DC_TSTAT_ANEGSTAT) != DC_ASTAT_AUTONEGCMP) { + if ((DC_IS_MACRONIX(dc_sc) || DC_IS_PNICII(dc_sc)) && + (tstat & DC_TSTAT_ANEGSTAT) == DC_ASTAT_DISABLE) + goto skip; + mii->mii_media_active |= IFM_NONE; + return; + } + + if (tstat & DC_TSTAT_LP_CAN_NWAY) { + anlpar = tstat >> 16; + if (anlpar & ANLPAR_T4 && + sc->mii_capabilities & BMSR_100TXHDX) + mii->mii_media_active |= IFM_100_T4; + else if (anlpar & ANLPAR_TX_FD && + sc->mii_capabilities & BMSR_100TXFDX) + mii->mii_media_active |= IFM_100_TX|IFM_FDX; + else if (anlpar & ANLPAR_TX && + sc->mii_capabilities & BMSR_100TXHDX) + mii->mii_media_active |= IFM_100_TX; + else if (anlpar & ANLPAR_10_FD) + mii->mii_media_active |= IFM_10_T|IFM_FDX; + else if (anlpar & ANLPAR_10) + mii->mii_media_active |= IFM_10_T; + else + mii->mii_media_active |= IFM_NONE; + if (DC_IS_INTEL(dc_sc)) + DC_CLRBIT(dc_sc, DC_10BTCTRL, + DC_TCTL_AUTONEGENBL); + return; + } + /* + * If the other side doesn't support NWAY, then the + * best we can do is determine if we have a 10Mbps or + * 100Mbps link. There's no way to know if the link + * is full or half duplex, so we default to half duplex + * and hope that the user is clever enough to manually + * change the media settings if we're wrong. + */ + if (!(reg & DC_TSTAT_LS100)) + mii->mii_media_active |= IFM_100_TX; + else if (!(reg & DC_TSTAT_LS10)) + mii->mii_media_active |= IFM_10_T; + else + mii->mii_media_active |= IFM_NONE; + if (DC_IS_INTEL(dc_sc)) + DC_CLRBIT(dc_sc, DC_10BTCTRL, DC_TCTL_AUTONEGENBL); + return; + } + +skip: + + if (CSR_READ_4(dc_sc, DC_NETCFG) & DC_NETCFG_SPEEDSEL) + mii->mii_media_active |= IFM_10_T; + else + mii->mii_media_active |= IFM_100_TX; + if (CSR_READ_4(dc_sc, DC_NETCFG) & DC_NETCFG_FULLDUPLEX) + mii->mii_media_active |= IFM_FDX; + + return; +} + +static int +dcphy_auto(mii) + struct mii_softc *mii; +{ + struct dc_softc *sc; + + sc = mii->mii_pdata->mii_ifp->if_softc; + + DC_CLRBIT(sc, DC_NETCFG, DC_NETCFG_PORTSEL); + DC_SETBIT(sc, DC_NETCFG, DC_NETCFG_FULLDUPLEX); + DC_CLRBIT(sc, DC_SIARESET, DC_SIA_RESET); + if (mii->mii_capabilities & BMSR_100TXHDX) + CSR_WRITE_4(sc, DC_10BTCTRL, 0x3FFFF); + else + CSR_WRITE_4(sc, DC_10BTCTRL, 0xFFFF); + DC_SETBIT(sc, DC_SIARESET, DC_SIA_RESET); + DC_SETBIT(sc, DC_10BTCTRL, DC_TCTL_AUTONEGENBL); + DC_SETBIT(sc, DC_10BTSTAT, DC_ASTAT_TXDISABLE); + + return(EJUSTRETURN); +} + +static void +dcphy_reset(mii) + struct mii_softc *mii; +{ + struct dc_softc *sc; + + sc = mii->mii_pdata->mii_ifp->if_softc; + + DC_CLRBIT(sc, DC_SIARESET, DC_SIA_RESET); + DELAY(1000); + DC_SETBIT(sc, DC_SIARESET, DC_SIA_RESET); + + return; +} + diff --git a/sys/dev/dc/if_dc.c b/sys/dev/dc/if_dc.c new file mode 100644 index 0000000..a5207b5 --- /dev/null +++ b/sys/dev/dc/if_dc.c @@ -0,0 +1,3626 @@ +/* + * Copyright (c) 1997, 1998, 1999 + * 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. + */ + +/* + * DEC "tulip" clone ethernet driver. Supports the DEC/Intel 21143 + * series chips and several workalikes including the following: + * + * Macronix 98713/98715/98725/98727/98732 PMAC (www.macronix.com) + * Macronix/Lite-On 82c115 PNIC II (www.macronix.com) + * Lite-On 82c168/82c169 PNIC (www.litecom.com) + * ASIX Electronics AX88140A (www.asix.com.tw) + * ASIX Electronics AX88141 (www.asix.com.tw) + * ADMtek AL981 (www.admtek.com.tw) + * ADMtek AN985 (www.admtek.com.tw) + * Davicom DM9100, DM9102, DM9102A (www.davicom8.com) + * Accton EN1217 (www.accton.com) + * Xircom X3201 (www.xircom.com) + * Abocom FE2500 + * Conexant LANfinity (www.conexant.com) + * 3Com OfficeConnect 10/100B 3CSOHO100B (www.3com.com) + * + * Datasheets for the 21143 are available at developer.intel.com. + * Datasheets for the clone parts can be found at their respective sites. + * (Except for the PNIC; see www.freebsd.org/~wpaul/PNIC/pnic.ps.gz.) + * The PNIC II is essentially a Macronix 98715A chip; the only difference + * worth noting is that its multicast hash table is only 128 bits wide + * instead of 512. + * + * Written by Bill Paul <wpaul@ee.columbia.edu> + * Electrical Engineering Department + * Columbia University, New York City + */ + +/* + * The Intel 21143 is the successor to the DEC 21140. It is basically + * the same as the 21140 but with a few new features. The 21143 supports + * three kinds of media attachments: + * + * o MII port, for 10Mbps and 100Mbps support and NWAY + * autonegotiation provided by an external PHY. + * o SYM port, for symbol mode 100Mbps support. + * o 10baseT port. + * o AUI/BNC port. + * + * The 100Mbps SYM port and 10baseT port can be used together in + * combination with the internal NWAY support to create a 10/100 + * autosensing configuration. + * + * Note that not all tulip workalikes are handled in this driver: we only + * deal with those which are relatively well behaved. The Winbond is + * handled separately due to its different register offsets and the + * special handling needed for its various bugs. The PNIC is handled + * here, but I'm not thrilled about it. + * + * All of the workalike chips use some form of MII transceiver support + * with the exception of the Macronix chips, which also have a SYM port. + * The ASIX AX88140A is also documented to have a SYM port, but all + * the cards I've seen use an MII transceiver, probably because the + * AX88140A doesn't support internal NWAY. + */ + +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +#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/if_types.h> +#include <net/if_vlan_var.h> + +#include <net/bpf.h> + +#include <vm/vm.h> /* for vtophys */ +#include <vm/pmap.h> /* for vtophys */ +#include <machine/bus_pio.h> +#include <machine/bus_memio.h> +#include <machine/bus.h> +#include <machine/resource.h> +#include <sys/bus.h> +#include <sys/rman.h> + +#include <dev/mii/mii.h> +#include <dev/mii/miivar.h> + +#include <pci/pcireg.h> +#include <pci/pcivar.h> + +#define DC_USEIOSPACE +#ifdef __alpha__ +#define SRM_MEDIA +#endif + +#include <pci/if_dcreg.h> + +MODULE_DEPEND(dc, pci, 1, 1, 1); +MODULE_DEPEND(dc, ether, 1, 1, 1); +MODULE_DEPEND(dc, miibus, 1, 1, 1); + +/* "controller miibus0" required. See GENERIC if you get errors here. */ +#include "miibus_if.h" + +/* + * Various supported device vendors/types and their names. + */ +static struct dc_type dc_devs[] = { + { DC_VENDORID_DEC, DC_DEVICEID_21143, + "Intel 21143 10/100BaseTX" }, + { DC_VENDORID_DAVICOM, DC_DEVICEID_DM9009, + "Davicom DM9009 10/100BaseTX" }, + { DC_VENDORID_DAVICOM, DC_DEVICEID_DM9100, + "Davicom DM9100 10/100BaseTX" }, + { DC_VENDORID_DAVICOM, DC_DEVICEID_DM9102, + "Davicom DM9102 10/100BaseTX" }, + { DC_VENDORID_DAVICOM, DC_DEVICEID_DM9102, + "Davicom DM9102A 10/100BaseTX" }, + { DC_VENDORID_ADMTEK, DC_DEVICEID_AL981, + "ADMtek AL981 10/100BaseTX" }, + { DC_VENDORID_ADMTEK, DC_DEVICEID_AN985, + "ADMtek AN985 10/100BaseTX" }, + { DC_VENDORID_ADMTEK, DC_DEVICEID_ADM9511, + "ADMtek ADM9511 10/100BaseTX" }, + { DC_VENDORID_ADMTEK, DC_DEVICEID_ADM9513, + "ADMtek ADM9513 10/100BaseTX" }, + { DC_VENDORID_ASIX, DC_DEVICEID_AX88140A, + "ASIX AX88140A 10/100BaseTX" }, + { DC_VENDORID_ASIX, DC_DEVICEID_AX88140A, + "ASIX AX88141 10/100BaseTX" }, + { DC_VENDORID_MX, DC_DEVICEID_98713, + "Macronix 98713 10/100BaseTX" }, + { DC_VENDORID_MX, DC_DEVICEID_98713, + "Macronix 98713A 10/100BaseTX" }, + { DC_VENDORID_CP, DC_DEVICEID_98713_CP, + "Compex RL100-TX 10/100BaseTX" }, + { DC_VENDORID_CP, DC_DEVICEID_98713_CP, + "Compex RL100-TX 10/100BaseTX" }, + { DC_VENDORID_MX, DC_DEVICEID_987x5, + "Macronix 98715/98715A 10/100BaseTX" }, + { DC_VENDORID_MX, DC_DEVICEID_987x5, + "Macronix 98715AEC-C 10/100BaseTX" }, + { DC_VENDORID_MX, DC_DEVICEID_987x5, + "Macronix 98725 10/100BaseTX" }, + { DC_VENDORID_MX, DC_DEVICEID_98727, + "Macronix 98727/98732 10/100BaseTX" }, + { DC_VENDORID_LO, DC_DEVICEID_82C115, + "LC82C115 PNIC II 10/100BaseTX" }, + { DC_VENDORID_LO, DC_DEVICEID_82C168, + "82c168 PNIC 10/100BaseTX" }, + { DC_VENDORID_LO, DC_DEVICEID_82C168, + "82c169 PNIC 10/100BaseTX" }, + { DC_VENDORID_ACCTON, DC_DEVICEID_EN1217, + "Accton EN1217 10/100BaseTX" }, + { DC_VENDORID_ACCTON, DC_DEVICEID_EN2242, + "Accton EN2242 MiniPCI 10/100BaseTX" }, + { DC_VENDORID_XIRCOM, DC_DEVICEID_X3201, + "Xircom X3201 10/100BaseTX" }, + { DC_VENDORID_ABOCOM, DC_DEVICEID_FE2500, + "Abocom FE2500 10/100BaseTX" }, + { DC_VENDORID_CONEXANT, DC_DEVICEID_RS7112, + "Conexant LANfinity MiniPCI 10/100BaseTX" }, + { DC_VENDORID_HAWKING, DC_DEVICEID_HAWKING_PN672TX, + "Hawking CB102 CardBus 10/100" }, + { DC_VENDORID_PLANEX, DC_DEVICEID_FNW3602T, + "PlaneX FNW-3602-T CardBus 10/100" }, + { DC_VENDORID_3COM, DC_DEVICEID_3CSOHOB, + "3Com OfficeConnect 10/100B" }, + { 0, 0, NULL } +}; + +static int dc_probe (device_t); +static int dc_attach (device_t); +static int dc_detach (device_t); +static int dc_suspend (device_t); +static int dc_resume (device_t); +static void dc_acpi (device_t); +static struct dc_type *dc_devtype (device_t); +static int dc_newbuf (struct dc_softc *, int, struct mbuf *); +static int dc_encap (struct dc_softc *, struct mbuf *, u_int32_t *); +static void dc_pnic_rx_bug_war (struct dc_softc *, int); +static int dc_rx_resync (struct dc_softc *); +static void dc_rxeof (struct dc_softc *); +static void dc_txeof (struct dc_softc *); +static void dc_tick (void *); +static void dc_tx_underrun (struct dc_softc *); +static void dc_intr (void *); +static void dc_start (struct ifnet *); +static int dc_ioctl (struct ifnet *, u_long, caddr_t); +static void dc_init (void *); +static void dc_stop (struct dc_softc *); +static void dc_watchdog (struct ifnet *); +static void dc_shutdown (device_t); +static int dc_ifmedia_upd (struct ifnet *); +static void dc_ifmedia_sts (struct ifnet *, struct ifmediareq *); + +static void dc_delay (struct dc_softc *); +static void dc_eeprom_idle (struct dc_softc *); +static void dc_eeprom_putbyte (struct dc_softc *, int); +static void dc_eeprom_getword (struct dc_softc *, int, u_int16_t *); +static void dc_eeprom_getword_pnic + (struct dc_softc *, int, u_int16_t *); +static void dc_eeprom_getword_xircom + (struct dc_softc *, int, u_int16_t *); +static void dc_eeprom_width (struct dc_softc *); +static void dc_read_eeprom (struct dc_softc *, caddr_t, int, int, int); + +static void dc_mii_writebit (struct dc_softc *, int); +static int dc_mii_readbit (struct dc_softc *); +static void dc_mii_sync (struct dc_softc *); +static void dc_mii_send (struct dc_softc *, u_int32_t, int); +static int dc_mii_readreg (struct dc_softc *, struct dc_mii_frame *); +static int dc_mii_writereg (struct dc_softc *, struct dc_mii_frame *); +static int dc_miibus_readreg (device_t, int, int); +static int dc_miibus_writereg (device_t, int, int, int); +static void dc_miibus_statchg (device_t); +static void dc_miibus_mediainit (device_t); + +static void dc_setcfg (struct dc_softc *, int); +static u_int32_t dc_crc_le (struct dc_softc *, caddr_t); +static u_int32_t dc_crc_be (caddr_t); +static void dc_setfilt_21143 (struct dc_softc *); +static void dc_setfilt_asix (struct dc_softc *); +static void dc_setfilt_admtek (struct dc_softc *); +static void dc_setfilt_xircom (struct dc_softc *); + +static void dc_setfilt (struct dc_softc *); + +static void dc_reset (struct dc_softc *); +static int dc_list_rx_init (struct dc_softc *); +static int dc_list_tx_init (struct dc_softc *); + +static void dc_read_srom (struct dc_softc *, int); +static void dc_parse_21143_srom (struct dc_softc *); +static void dc_decode_leaf_sia (struct dc_softc *, struct dc_eblock_sia *); +static void dc_decode_leaf_mii (struct dc_softc *, struct dc_eblock_mii *); +static void dc_decode_leaf_sym (struct dc_softc *, struct dc_eblock_sym *); +static void dc_apply_fixup (struct dc_softc *, int); + +#ifdef DC_USEIOSPACE +#define DC_RES SYS_RES_IOPORT +#define DC_RID DC_PCI_CFBIO +#else +#define DC_RES SYS_RES_MEMORY +#define DC_RID DC_PCI_CFBMA +#endif + +static device_method_t dc_methods[] = { + /* Device interface */ + DEVMETHOD(device_probe, dc_probe), + DEVMETHOD(device_attach, dc_attach), + DEVMETHOD(device_detach, dc_detach), + DEVMETHOD(device_suspend, dc_suspend), + DEVMETHOD(device_resume, dc_resume), + DEVMETHOD(device_shutdown, dc_shutdown), + + /* bus interface */ + DEVMETHOD(bus_print_child, bus_generic_print_child), + DEVMETHOD(bus_driver_added, bus_generic_driver_added), + + /* MII interface */ + DEVMETHOD(miibus_readreg, dc_miibus_readreg), + DEVMETHOD(miibus_writereg, dc_miibus_writereg), + DEVMETHOD(miibus_statchg, dc_miibus_statchg), + DEVMETHOD(miibus_mediainit, dc_miibus_mediainit), + + { 0, 0 } +}; + +static driver_t dc_driver = { + "dc", + dc_methods, + sizeof(struct dc_softc) +}; + +static devclass_t dc_devclass; +#ifdef __i386__ +static int dc_quick = 1; +SYSCTL_INT(_hw, OID_AUTO, dc_quick, CTLFLAG_RW, + &dc_quick,0,"do not mdevget in dc driver"); +#endif + +DRIVER_MODULE(dc, cardbus, dc_driver, dc_devclass, 0, 0); +DRIVER_MODULE(dc, pci, dc_driver, dc_devclass, 0, 0); +DRIVER_MODULE(miibus, dc, miibus_driver, miibus_devclass, 0, 0); + +#define DC_SETBIT(sc, reg, x) \ + CSR_WRITE_4(sc, reg, CSR_READ_4(sc, reg) | (x)) + +#define DC_CLRBIT(sc, reg, x) \ + CSR_WRITE_4(sc, reg, CSR_READ_4(sc, reg) & ~(x)) + +#define SIO_SET(x) DC_SETBIT(sc, DC_SIO, (x)) +#define SIO_CLR(x) DC_CLRBIT(sc, DC_SIO, (x)) + +#define IS_MPSAFE 0 + +static void +dc_delay(struct dc_softc *sc) +{ + int idx; + + for (idx = (300 / 33) + 1; idx > 0; idx--) + CSR_READ_4(sc, DC_BUSCTL); +} + +static void +dc_eeprom_width(struct dc_softc *sc) +{ + int i; + + /* Force EEPROM to idle state. */ + dc_eeprom_idle(sc); + + /* Enter EEPROM access mode. */ + CSR_WRITE_4(sc, DC_SIO, DC_SIO_EESEL); + dc_delay(sc); + DC_SETBIT(sc, DC_SIO, DC_SIO_ROMCTL_READ); + dc_delay(sc); + DC_CLRBIT(sc, DC_SIO, DC_SIO_EE_CLK); + dc_delay(sc); + DC_SETBIT(sc, DC_SIO, DC_SIO_EE_CS); + dc_delay(sc); + + for (i = 3; i--;) { + if (6 & (1 << i)) + DC_SETBIT(sc, DC_SIO, DC_SIO_EE_DATAIN); + else + DC_CLRBIT(sc, DC_SIO, DC_SIO_EE_DATAIN); + dc_delay(sc); + DC_SETBIT(sc, DC_SIO, DC_SIO_EE_CLK); + dc_delay(sc); + DC_CLRBIT(sc, DC_SIO, DC_SIO_EE_CLK); + dc_delay(sc); + } + + for (i = 1; i <= 12; i++) { + DC_SETBIT(sc, DC_SIO, DC_SIO_EE_CLK); + dc_delay(sc); + if (!(CSR_READ_4(sc, DC_SIO) & DC_SIO_EE_DATAOUT)) { + DC_CLRBIT(sc, DC_SIO, DC_SIO_EE_CLK); + dc_delay(sc); + break; + } + DC_CLRBIT(sc, DC_SIO, DC_SIO_EE_CLK); + dc_delay(sc); + } + + /* Turn off EEPROM access mode. */ + dc_eeprom_idle(sc); + + if (i < 4 || i > 12) + sc->dc_romwidth = 6; + else + sc->dc_romwidth = i; + + /* Enter EEPROM access mode. */ + CSR_WRITE_4(sc, DC_SIO, DC_SIO_EESEL); + dc_delay(sc); + DC_SETBIT(sc, DC_SIO, DC_SIO_ROMCTL_READ); + dc_delay(sc); + DC_CLRBIT(sc, DC_SIO, DC_SIO_EE_CLK); + dc_delay(sc); + DC_SETBIT(sc, DC_SIO, DC_SIO_EE_CS); + dc_delay(sc); + + /* Turn off EEPROM access mode. */ + dc_eeprom_idle(sc); +} + +static void +dc_eeprom_idle(struct dc_softc *sc) +{ + int i; + + CSR_WRITE_4(sc, DC_SIO, DC_SIO_EESEL); + dc_delay(sc); + DC_SETBIT(sc, DC_SIO, DC_SIO_ROMCTL_READ); + dc_delay(sc); + DC_CLRBIT(sc, DC_SIO, DC_SIO_EE_CLK); + dc_delay(sc); + DC_SETBIT(sc, DC_SIO, DC_SIO_EE_CS); + dc_delay(sc); + + for (i = 0; i < 25; i++) { + DC_CLRBIT(sc, DC_SIO, DC_SIO_EE_CLK); + dc_delay(sc); + DC_SETBIT(sc, DC_SIO, DC_SIO_EE_CLK); + dc_delay(sc); + } + + DC_CLRBIT(sc, DC_SIO, DC_SIO_EE_CLK); + dc_delay(sc); + DC_CLRBIT(sc, DC_SIO, DC_SIO_EE_CS); + dc_delay(sc); + CSR_WRITE_4(sc, DC_SIO, 0x00000000); +} + +/* + * Send a read command and address to the EEPROM, check for ACK. + */ +static void +dc_eeprom_putbyte(struct dc_softc *sc, int addr) +{ + int d, i; + + d = DC_EECMD_READ >> 6; + for (i = 3; i--; ) { + if (d & (1 << i)) + DC_SETBIT(sc, DC_SIO, DC_SIO_EE_DATAIN); + else + DC_CLRBIT(sc, DC_SIO, DC_SIO_EE_DATAIN); + dc_delay(sc); + DC_SETBIT(sc, DC_SIO, DC_SIO_EE_CLK); + dc_delay(sc); + DC_CLRBIT(sc, DC_SIO, DC_SIO_EE_CLK); + dc_delay(sc); + } + + /* + * Feed in each bit and strobe the clock. + */ + for (i = sc->dc_romwidth; i--;) { + if (addr & (1 << i)) { + SIO_SET(DC_SIO_EE_DATAIN); + } else { + SIO_CLR(DC_SIO_EE_DATAIN); + } + dc_delay(sc); + SIO_SET(DC_SIO_EE_CLK); + dc_delay(sc); + SIO_CLR(DC_SIO_EE_CLK); + dc_delay(sc); + } +} + +/* + * Read a word of data stored in the EEPROM at address 'addr.' + * The PNIC 82c168/82c169 has its own non-standard way to read + * the EEPROM. + */ +static void +dc_eeprom_getword_pnic(struct dc_softc *sc, int addr, u_int16_t *dest) +{ + int i; + u_int32_t r; + + CSR_WRITE_4(sc, DC_PN_SIOCTL, DC_PN_EEOPCODE_READ | addr); + + for (i = 0; i < DC_TIMEOUT; i++) { + DELAY(1); + r = CSR_READ_4(sc, DC_SIO); + if (!(r & DC_PN_SIOCTL_BUSY)) { + *dest = (u_int16_t)(r & 0xFFFF); + return; + } + } +} + +/* + * Read a word of data stored in the EEPROM at address 'addr.' + * The Xircom X3201 has its own non-standard way to read + * the EEPROM, too. + */ +static void +dc_eeprom_getword_xircom(struct dc_softc *sc, int addr, u_int16_t *dest) +{ + + SIO_SET(DC_SIO_ROMSEL | DC_SIO_ROMCTL_READ); + + addr *= 2; + CSR_WRITE_4(sc, DC_ROM, addr | 0x160); + *dest = (u_int16_t)CSR_READ_4(sc, DC_SIO) & 0xff; + addr += 1; + CSR_WRITE_4(sc, DC_ROM, addr | 0x160); + *dest |= ((u_int16_t)CSR_READ_4(sc, DC_SIO) & 0xff) << 8; + + SIO_CLR(DC_SIO_ROMSEL | DC_SIO_ROMCTL_READ); +} + +/* + * Read a word of data stored in the EEPROM at address 'addr.' + */ +static void +dc_eeprom_getword(struct dc_softc *sc, int addr, u_int16_t *dest) +{ + int i; + u_int16_t word = 0; + + /* Force EEPROM to idle state. */ + dc_eeprom_idle(sc); + + /* Enter EEPROM access mode. */ + CSR_WRITE_4(sc, DC_SIO, DC_SIO_EESEL); + dc_delay(sc); + DC_SETBIT(sc, DC_SIO, DC_SIO_ROMCTL_READ); + dc_delay(sc); + DC_CLRBIT(sc, DC_SIO, DC_SIO_EE_CLK); + dc_delay(sc); + DC_SETBIT(sc, DC_SIO, DC_SIO_EE_CS); + dc_delay(sc); + + /* + * Send address of word we want to read. + */ + dc_eeprom_putbyte(sc, addr); + + /* + * Start reading bits from EEPROM. + */ + for (i = 0x8000; i; i >>= 1) { + SIO_SET(DC_SIO_EE_CLK); + dc_delay(sc); + if (CSR_READ_4(sc, DC_SIO) & DC_SIO_EE_DATAOUT) + word |= i; + dc_delay(sc); + SIO_CLR(DC_SIO_EE_CLK); + dc_delay(sc); + } + + /* Turn off EEPROM access mode. */ + dc_eeprom_idle(sc); + + *dest = word; +} + +/* + * Read a sequence of words from the EEPROM. + */ +static void +dc_read_eeprom(struct dc_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++) { + if (DC_IS_PNIC(sc)) + dc_eeprom_getword_pnic(sc, off + i, &word); + else if (DC_IS_XIRCOM(sc)) + dc_eeprom_getword_xircom(sc, off + i, &word); + else + dc_eeprom_getword(sc, off + i, &word); + ptr = (u_int16_t *)(dest + (i * 2)); + if (swap) + *ptr = ntohs(word); + else + *ptr = word; + } +} + +/* + * The following two routines are taken from the Macronix 98713 + * Application Notes pp.19-21. + */ +/* + * Write a bit to the MII bus. + */ +static void +dc_mii_writebit(struct dc_softc *sc, int bit) +{ + + if (bit) + CSR_WRITE_4(sc, DC_SIO, + DC_SIO_ROMCTL_WRITE | DC_SIO_MII_DATAOUT); + else + CSR_WRITE_4(sc, DC_SIO, DC_SIO_ROMCTL_WRITE); + + DC_SETBIT(sc, DC_SIO, DC_SIO_MII_CLK); + DC_CLRBIT(sc, DC_SIO, DC_SIO_MII_CLK); +} + +/* + * Read a bit from the MII bus. + */ +static int +dc_mii_readbit(struct dc_softc *sc) +{ + + CSR_WRITE_4(sc, DC_SIO, DC_SIO_ROMCTL_READ | DC_SIO_MII_DIR); + CSR_READ_4(sc, DC_SIO); + DC_SETBIT(sc, DC_SIO, DC_SIO_MII_CLK); + DC_CLRBIT(sc, DC_SIO, DC_SIO_MII_CLK); + if (CSR_READ_4(sc, DC_SIO) & DC_SIO_MII_DATAIN) + return (1); + + return (0); +} + +/* + * Sync the PHYs by setting data bit and strobing the clock 32 times. + */ +static void +dc_mii_sync(struct dc_softc *sc) +{ + int i; + + CSR_WRITE_4(sc, DC_SIO, DC_SIO_ROMCTL_WRITE); + + for (i = 0; i < 32; i++) + dc_mii_writebit(sc, 1); +} + +/* + * Clock a series of bits through the MII. + */ +static void +dc_mii_send(struct dc_softc *sc, u_int32_t bits, int cnt) +{ + int i; + + for (i = (0x1 << (cnt - 1)); i; i >>= 1) + dc_mii_writebit(sc, bits & i); +} + +/* + * Read an PHY register through the MII. + */ +static int +dc_mii_readreg(struct dc_softc *sc, struct dc_mii_frame *frame) +{ + int i, ack; + + DC_LOCK(sc); + + /* + * Set up frame for RX. + */ + frame->mii_stdelim = DC_MII_STARTDELIM; + frame->mii_opcode = DC_MII_READOP; + frame->mii_turnaround = 0; + frame->mii_data = 0; + + /* + * Sync the PHYs. + */ + dc_mii_sync(sc); + + /* + * Send command/address info. + */ + dc_mii_send(sc, frame->mii_stdelim, 2); + dc_mii_send(sc, frame->mii_opcode, 2); + dc_mii_send(sc, frame->mii_phyaddr, 5); + dc_mii_send(sc, frame->mii_regaddr, 5); + +#ifdef notdef + /* Idle bit */ + dc_mii_writebit(sc, 1); + dc_mii_writebit(sc, 0); +#endif + + /* Check for ack. */ + ack = dc_mii_readbit(sc); + + /* + * Now try reading data bits. If the ack failed, we still + * need to clock through 16 cycles to keep the PHY(s) in sync. + */ + if (ack) { + for (i = 0; i < 16; i++) + dc_mii_readbit(sc); + goto fail; + } + + for (i = 0x8000; i; i >>= 1) { + if (!ack) { + if (dc_mii_readbit(sc)) + frame->mii_data |= i; + } + } + +fail: + + dc_mii_writebit(sc, 0); + dc_mii_writebit(sc, 0); + + DC_UNLOCK(sc); + + if (ack) + return (1); + return (0); +} + +/* + * Write to a PHY register through the MII. + */ +static int +dc_mii_writereg(struct dc_softc *sc, struct dc_mii_frame *frame) +{ + + DC_LOCK(sc); + /* + * Set up frame for TX. + */ + + frame->mii_stdelim = DC_MII_STARTDELIM; + frame->mii_opcode = DC_MII_WRITEOP; + frame->mii_turnaround = DC_MII_TURNAROUND; + + /* + * Sync the PHYs. + */ + dc_mii_sync(sc); + + dc_mii_send(sc, frame->mii_stdelim, 2); + dc_mii_send(sc, frame->mii_opcode, 2); + dc_mii_send(sc, frame->mii_phyaddr, 5); + dc_mii_send(sc, frame->mii_regaddr, 5); + dc_mii_send(sc, frame->mii_turnaround, 2); + dc_mii_send(sc, frame->mii_data, 16); + + /* Idle bit. */ + dc_mii_writebit(sc, 0); + dc_mii_writebit(sc, 0); + + DC_UNLOCK(sc); + + return (0); +} + +static int +dc_miibus_readreg(device_t dev, int phy, int reg) +{ + struct dc_mii_frame frame; + struct dc_softc *sc; + int i, rval, phy_reg = 0; + + sc = device_get_softc(dev); + bzero(&frame, sizeof(frame)); + + /* + * Note: both the AL981 and AN985 have internal PHYs, + * however the AL981 provides direct access to the PHY + * registers while the AN985 uses a serial MII interface. + * The AN985's MII interface is also buggy in that you + * can read from any MII address (0 to 31), but only address 1 + * behaves normally. To deal with both cases, we pretend + * that the PHY is at MII address 1. + */ + if (DC_IS_ADMTEK(sc) && phy != DC_ADMTEK_PHYADDR) + return (0); + + /* + * Note: the ukphy probes of the RS7112 report a PHY at + * MII address 0 (possibly HomePNA?) and 1 (ethernet) + * so we only respond to correct one. + */ + if (DC_IS_CONEXANT(sc) && phy != DC_CONEXANT_PHYADDR) + return (0); + + if (sc->dc_pmode != DC_PMODE_MII) { + if (phy == (MII_NPHY - 1)) { + switch (reg) { + case MII_BMSR: + /* + * Fake something to make the probe + * code think there's a PHY here. + */ + return (BMSR_MEDIAMASK); + break; + case MII_PHYIDR1: + if (DC_IS_PNIC(sc)) + return (DC_VENDORID_LO); + return (DC_VENDORID_DEC); + break; + case MII_PHYIDR2: + if (DC_IS_PNIC(sc)) + return (DC_DEVICEID_82C168); + return (DC_DEVICEID_21143); + break; + default: + return (0); + break; + } + } else + return (0); + } + + if (DC_IS_PNIC(sc)) { + CSR_WRITE_4(sc, DC_PN_MII, DC_PN_MIIOPCODE_READ | + (phy << 23) | (reg << 18)); + for (i = 0; i < DC_TIMEOUT; i++) { + DELAY(1); + rval = CSR_READ_4(sc, DC_PN_MII); + if (!(rval & DC_PN_MII_BUSY)) { + rval &= 0xFFFF; + return (rval == 0xFFFF ? 0 : rval); + } + } + return (0); + } + + if (DC_IS_COMET(sc)) { + switch (reg) { + case MII_BMCR: + phy_reg = DC_AL_BMCR; + break; + case MII_BMSR: + phy_reg = DC_AL_BMSR; + break; + case MII_PHYIDR1: + phy_reg = DC_AL_VENID; + break; + case MII_PHYIDR2: + phy_reg = DC_AL_DEVID; + break; + case MII_ANAR: + phy_reg = DC_AL_ANAR; + break; + case MII_ANLPAR: + phy_reg = DC_AL_LPAR; + break; + case MII_ANER: + phy_reg = DC_AL_ANER; + break; + default: + printf("dc%d: phy_read: bad phy register %x\n", + sc->dc_unit, reg); + return (0); + break; + } + + rval = CSR_READ_4(sc, phy_reg) & 0x0000FFFF; + + if (rval == 0xFFFF) + return (0); + return (rval); + } + + frame.mii_phyaddr = phy; + frame.mii_regaddr = reg; + if (sc->dc_type == DC_TYPE_98713) { + phy_reg = CSR_READ_4(sc, DC_NETCFG); + CSR_WRITE_4(sc, DC_NETCFG, phy_reg & ~DC_NETCFG_PORTSEL); + } + dc_mii_readreg(sc, &frame); + if (sc->dc_type == DC_TYPE_98713) + CSR_WRITE_4(sc, DC_NETCFG, phy_reg); + + return (frame.mii_data); +} + +static int +dc_miibus_writereg(device_t dev, int phy, int reg, int data) +{ + struct dc_softc *sc; + struct dc_mii_frame frame; + int i, phy_reg = 0; + + sc = device_get_softc(dev); + bzero(&frame, sizeof(frame)); + + if (DC_IS_ADMTEK(sc) && phy != DC_ADMTEK_PHYADDR) + return (0); + + if (DC_IS_CONEXANT(sc) && phy != DC_CONEXANT_PHYADDR) + return (0); + + if (DC_IS_PNIC(sc)) { + CSR_WRITE_4(sc, DC_PN_MII, DC_PN_MIIOPCODE_WRITE | + (phy << 23) | (reg << 10) | data); + for (i = 0; i < DC_TIMEOUT; i++) { + if (!(CSR_READ_4(sc, DC_PN_MII) & DC_PN_MII_BUSY)) + break; + } + return (0); + } + + if (DC_IS_COMET(sc)) { + switch (reg) { + case MII_BMCR: + phy_reg = DC_AL_BMCR; + break; + case MII_BMSR: + phy_reg = DC_AL_BMSR; + break; + case MII_PHYIDR1: + phy_reg = DC_AL_VENID; + break; + case MII_PHYIDR2: + phy_reg = DC_AL_DEVID; + break; + case MII_ANAR: + phy_reg = DC_AL_ANAR; + break; + case MII_ANLPAR: + phy_reg = DC_AL_LPAR; + break; + case MII_ANER: + phy_reg = DC_AL_ANER; + break; + default: + printf("dc%d: phy_write: bad phy register %x\n", + sc->dc_unit, reg); + return (0); + break; + } + + CSR_WRITE_4(sc, phy_reg, data); + return (0); + } + + frame.mii_phyaddr = phy; + frame.mii_regaddr = reg; + frame.mii_data = data; + + if (sc->dc_type == DC_TYPE_98713) { + phy_reg = CSR_READ_4(sc, DC_NETCFG); + CSR_WRITE_4(sc, DC_NETCFG, phy_reg & ~DC_NETCFG_PORTSEL); + } + dc_mii_writereg(sc, &frame); + if (sc->dc_type == DC_TYPE_98713) + CSR_WRITE_4(sc, DC_NETCFG, phy_reg); + + return (0); +} + +static void +dc_miibus_statchg(device_t dev) +{ + struct dc_softc *sc; + struct mii_data *mii; + struct ifmedia *ifm; + + sc = device_get_softc(dev); + if (DC_IS_ADMTEK(sc)) + return; + + mii = device_get_softc(sc->dc_miibus); + ifm = &mii->mii_media; + if (DC_IS_DAVICOM(sc) && + IFM_SUBTYPE(ifm->ifm_media) == IFM_HPNA_1) { + dc_setcfg(sc, ifm->ifm_media); + sc->dc_if_media = ifm->ifm_media; + } else { + dc_setcfg(sc, mii->mii_media_active); + sc->dc_if_media = mii->mii_media_active; + } +} + +/* + * Special support for DM9102A cards with HomePNA PHYs. Note: + * with the Davicom DM9102A/DM9801 eval board that I have, it seems + * to be impossible to talk to the management interface of the DM9801 + * PHY (its MDIO pin is not connected to anything). Consequently, + * the driver has to just 'know' about the additional mode and deal + * with it itself. *sigh* + */ +static void +dc_miibus_mediainit(device_t dev) +{ + struct dc_softc *sc; + struct mii_data *mii; + struct ifmedia *ifm; + int rev; + + rev = pci_read_config(dev, DC_PCI_CFRV, 4) & 0xFF; + + sc = device_get_softc(dev); + mii = device_get_softc(sc->dc_miibus); + ifm = &mii->mii_media; + + if (DC_IS_DAVICOM(sc) && rev >= DC_REVISION_DM9102A) + ifmedia_add(ifm, IFM_ETHER | IFM_HPNA_1, 0, NULL); +} + +#define DC_POLY 0xEDB88320 +#define DC_BITS_512 9 +#define DC_BITS_128 7 +#define DC_BITS_64 6 + +static u_int32_t +dc_crc_le(struct dc_softc *sc, caddr_t addr) +{ + u_int32_t idx, bit, data, crc; + + /* Compute CRC for the address value. */ + crc = 0xFFFFFFFF; /* initial value */ + + for (idx = 0; idx < 6; idx++) { + for (data = *addr++, bit = 0; bit < 8; bit++, data >>= 1) + crc = (crc >> 1) ^ (((crc ^ data) & 1) ? DC_POLY : 0); + } + + /* + * The hash table on the PNIC II and the MX98715AEC-C/D/E + * chips is only 128 bits wide. + */ + if (sc->dc_flags & DC_128BIT_HASH) + return (crc & ((1 << DC_BITS_128) - 1)); + + /* The hash table on the MX98715BEC is only 64 bits wide. */ + if (sc->dc_flags & DC_64BIT_HASH) + return (crc & ((1 << DC_BITS_64) - 1)); + + /* Xircom's hash filtering table is different (read: weird) */ + /* Xircom uses the LEAST significant bits */ + if (DC_IS_XIRCOM(sc)) { + if ((crc & 0x180) == 0x180) + return ((crc & 0x0F) + (crc & 0x70) * 3 + (14 << 4)); + else + return ((crc & 0x1F) + ((crc >> 1) & 0xF0) * 3 + + (12 << 4)); + } + + return (crc & ((1 << DC_BITS_512) - 1)); +} + +/* + * Calculate CRC of a multicast group address, return the lower 6 bits. + */ +static u_int32_t +dc_crc_be(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) & 0x0000003F); +} + +/* + * 21143-style RX filter setup routine. Filter programming is done by + * downloading a special setup frame into the TX engine. 21143, Macronix, + * PNIC, PNIC II and Davicom chips are programmed this way. + * + * We always program the chip using 'hash perfect' mode, i.e. one perfect + * address (our node address) and a 512-bit hash filter for multicast + * frames. We also sneak the broadcast address into the hash filter since + * we need that too. + */ +static void +dc_setfilt_21143(struct dc_softc *sc) +{ + struct dc_desc *sframe; + u_int32_t h, *sp; + struct ifmultiaddr *ifma; + struct ifnet *ifp; + int i; + + ifp = &sc->arpcom.ac_if; + + i = sc->dc_cdata.dc_tx_prod; + DC_INC(sc->dc_cdata.dc_tx_prod, DC_TX_LIST_CNT); + sc->dc_cdata.dc_tx_cnt++; + sframe = &sc->dc_ldata->dc_tx_list[i]; + sp = (u_int32_t *)&sc->dc_cdata.dc_sbuf; + bzero(sp, DC_SFRAME_LEN); + + sframe->dc_data = vtophys(&sc->dc_cdata.dc_sbuf); + sframe->dc_ctl = DC_SFRAME_LEN | DC_TXCTL_SETUP | DC_TXCTL_TLINK | + DC_FILTER_HASHPERF | DC_TXCTL_FINT; + + sc->dc_cdata.dc_tx_chain[i] = (struct mbuf *)&sc->dc_cdata.dc_sbuf; + + /* If we want promiscuous mode, set the allframes bit. */ + if (ifp->if_flags & IFF_PROMISC) + DC_SETBIT(sc, DC_NETCFG, DC_NETCFG_RX_PROMISC); + else + DC_CLRBIT(sc, DC_NETCFG, DC_NETCFG_RX_PROMISC); + + if (ifp->if_flags & IFF_ALLMULTI) + DC_SETBIT(sc, DC_NETCFG, DC_NETCFG_RX_ALLMULTI); + else + DC_CLRBIT(sc, DC_NETCFG, DC_NETCFG_RX_ALLMULTI); + + TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) { + if (ifma->ifma_addr->sa_family != AF_LINK) + continue; + h = dc_crc_le(sc, + LLADDR((struct sockaddr_dl *)ifma->ifma_addr)); + sp[h >> 4] |= 1 << (h & 0xF); + } + + if (ifp->if_flags & IFF_BROADCAST) { + h = dc_crc_le(sc, (caddr_t)ifp->if_broadcastaddr); + sp[h >> 4] |= 1 << (h & 0xF); + } + + /* Set our MAC address */ + sp[39] = ((u_int16_t *)sc->arpcom.ac_enaddr)[0]; + sp[40] = ((u_int16_t *)sc->arpcom.ac_enaddr)[1]; + sp[41] = ((u_int16_t *)sc->arpcom.ac_enaddr)[2]; + + sframe->dc_status = DC_TXSTAT_OWN; + CSR_WRITE_4(sc, DC_TXSTART, 0xFFFFFFFF); + + /* + * The PNIC takes an exceedingly long time to process its + * setup frame; wait 10ms after posting the setup frame + * before proceeding, just so it has time to swallow its + * medicine. + */ + DELAY(10000); + + ifp->if_timer = 5; +} + +static void +dc_setfilt_admtek(struct dc_softc *sc) +{ + struct ifnet *ifp; + struct ifmultiaddr *ifma; + int h = 0; + u_int32_t hashes[2] = { 0, 0 }; + + ifp = &sc->arpcom.ac_if; + + /* Init our MAC address. */ + CSR_WRITE_4(sc, DC_AL_PAR0, *(u_int32_t *)(&sc->arpcom.ac_enaddr[0])); + CSR_WRITE_4(sc, DC_AL_PAR1, *(u_int32_t *)(&sc->arpcom.ac_enaddr[4])); + + /* If we want promiscuous mode, set the allframes bit. */ + if (ifp->if_flags & IFF_PROMISC) + DC_SETBIT(sc, DC_NETCFG, DC_NETCFG_RX_PROMISC); + else + DC_CLRBIT(sc, DC_NETCFG, DC_NETCFG_RX_PROMISC); + + if (ifp->if_flags & IFF_ALLMULTI) + DC_SETBIT(sc, DC_NETCFG, DC_NETCFG_RX_ALLMULTI); + else + DC_CLRBIT(sc, DC_NETCFG, DC_NETCFG_RX_ALLMULTI); + + /* First, zot all the existing hash bits. */ + CSR_WRITE_4(sc, DC_AL_MAR0, 0); + CSR_WRITE_4(sc, DC_AL_MAR1, 0); + + /* + * If we're already in promisc or allmulti mode, we + * don't have to bother programming the multicast filter. + */ + if (ifp->if_flags & (IFF_PROMISC | IFF_ALLMULTI)) + return; + + /* Now program new ones. */ + TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) { + if (ifma->ifma_addr->sa_family != AF_LINK) + continue; + if (DC_IS_CENTAUR(sc)) + h = dc_crc_le(sc, LLADDR((struct sockaddr_dl *)ifma->ifma_addr)); + else + h = dc_crc_be(LLADDR((struct sockaddr_dl *)ifma->ifma_addr)); + if (h < 32) + hashes[0] |= (1 << h); + else + hashes[1] |= (1 << (h - 32)); + } + + CSR_WRITE_4(sc, DC_AL_MAR0, hashes[0]); + CSR_WRITE_4(sc, DC_AL_MAR1, hashes[1]); +} + +static void +dc_setfilt_asix(struct dc_softc *sc) +{ + struct ifnet *ifp; + struct ifmultiaddr *ifma; + int h = 0; + u_int32_t hashes[2] = { 0, 0 }; + + ifp = &sc->arpcom.ac_if; + + /* Init our MAC address */ + CSR_WRITE_4(sc, DC_AX_FILTIDX, DC_AX_FILTIDX_PAR0); + CSR_WRITE_4(sc, DC_AX_FILTDATA, + *(u_int32_t *)(&sc->arpcom.ac_enaddr[0])); + CSR_WRITE_4(sc, DC_AX_FILTIDX, DC_AX_FILTIDX_PAR1); + CSR_WRITE_4(sc, DC_AX_FILTDATA, + *(u_int32_t *)(&sc->arpcom.ac_enaddr[4])); + + /* If we want promiscuous mode, set the allframes bit. */ + if (ifp->if_flags & IFF_PROMISC) + DC_SETBIT(sc, DC_NETCFG, DC_NETCFG_RX_PROMISC); + else + DC_CLRBIT(sc, DC_NETCFG, DC_NETCFG_RX_PROMISC); + + if (ifp->if_flags & IFF_ALLMULTI) + DC_SETBIT(sc, DC_NETCFG, DC_NETCFG_RX_ALLMULTI); + else + DC_CLRBIT(sc, DC_NETCFG, DC_NETCFG_RX_ALLMULTI); + + /* + * The ASIX chip has a special bit to enable reception + * of broadcast frames. + */ + if (ifp->if_flags & IFF_BROADCAST) + DC_SETBIT(sc, DC_NETCFG, DC_AX_NETCFG_RX_BROAD); + else + DC_CLRBIT(sc, DC_NETCFG, DC_AX_NETCFG_RX_BROAD); + + /* first, zot all the existing hash bits */ + CSR_WRITE_4(sc, DC_AX_FILTIDX, DC_AX_FILTIDX_MAR0); + CSR_WRITE_4(sc, DC_AX_FILTDATA, 0); + CSR_WRITE_4(sc, DC_AX_FILTIDX, DC_AX_FILTIDX_MAR1); + CSR_WRITE_4(sc, DC_AX_FILTDATA, 0); + + /* + * If we're already in promisc or allmulti mode, we + * don't have to bother programming the multicast filter. + */ + if (ifp->if_flags & (IFF_PROMISC | IFF_ALLMULTI)) + return; + + /* now program new ones */ + TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) { + if (ifma->ifma_addr->sa_family != AF_LINK) + continue; + h = dc_crc_be(LLADDR((struct sockaddr_dl *)ifma->ifma_addr)); + if (h < 32) + hashes[0] |= (1 << h); + else + hashes[1] |= (1 << (h - 32)); + } + + CSR_WRITE_4(sc, DC_AX_FILTIDX, DC_AX_FILTIDX_MAR0); + CSR_WRITE_4(sc, DC_AX_FILTDATA, hashes[0]); + CSR_WRITE_4(sc, DC_AX_FILTIDX, DC_AX_FILTIDX_MAR1); + CSR_WRITE_4(sc, DC_AX_FILTDATA, hashes[1]); +} + +static void +dc_setfilt_xircom(struct dc_softc *sc) +{ + struct ifnet *ifp; + struct ifmultiaddr *ifma; + struct dc_desc *sframe; + u_int32_t h, *sp; + int i; + + ifp = &sc->arpcom.ac_if; + DC_CLRBIT(sc, DC_NETCFG, (DC_NETCFG_TX_ON | DC_NETCFG_RX_ON)); + + i = sc->dc_cdata.dc_tx_prod; + DC_INC(sc->dc_cdata.dc_tx_prod, DC_TX_LIST_CNT); + sc->dc_cdata.dc_tx_cnt++; + sframe = &sc->dc_ldata->dc_tx_list[i]; + sp = (u_int32_t *)&sc->dc_cdata.dc_sbuf; + bzero(sp, DC_SFRAME_LEN); + + sframe->dc_data = vtophys(&sc->dc_cdata.dc_sbuf); + sframe->dc_ctl = DC_SFRAME_LEN | DC_TXCTL_SETUP | DC_TXCTL_TLINK | + DC_FILTER_HASHPERF | DC_TXCTL_FINT; + + sc->dc_cdata.dc_tx_chain[i] = (struct mbuf *)&sc->dc_cdata.dc_sbuf; + + /* If we want promiscuous mode, set the allframes bit. */ + if (ifp->if_flags & IFF_PROMISC) + DC_SETBIT(sc, DC_NETCFG, DC_NETCFG_RX_PROMISC); + else + DC_CLRBIT(sc, DC_NETCFG, DC_NETCFG_RX_PROMISC); + + if (ifp->if_flags & IFF_ALLMULTI) + DC_SETBIT(sc, DC_NETCFG, DC_NETCFG_RX_ALLMULTI); + else + DC_CLRBIT(sc, DC_NETCFG, DC_NETCFG_RX_ALLMULTI); + + TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) { + if (ifma->ifma_addr->sa_family != AF_LINK) + continue; + h = dc_crc_le(sc, + LLADDR((struct sockaddr_dl *)ifma->ifma_addr)); + sp[h >> 4] |= 1 << (h & 0xF); + } + + if (ifp->if_flags & IFF_BROADCAST) { + h = dc_crc_le(sc, (caddr_t)ifp->if_broadcastaddr); + sp[h >> 4] |= 1 << (h & 0xF); + } + + /* Set our MAC address */ + sp[0] = ((u_int16_t *)sc->arpcom.ac_enaddr)[0]; + sp[1] = ((u_int16_t *)sc->arpcom.ac_enaddr)[1]; + sp[2] = ((u_int16_t *)sc->arpcom.ac_enaddr)[2]; + + DC_SETBIT(sc, DC_NETCFG, DC_NETCFG_TX_ON); + DC_SETBIT(sc, DC_NETCFG, DC_NETCFG_RX_ON); + ifp->if_flags |= IFF_RUNNING; + sframe->dc_status = DC_TXSTAT_OWN; + CSR_WRITE_4(sc, DC_TXSTART, 0xFFFFFFFF); + + /* + * Wait some time... + */ + DELAY(1000); + + ifp->if_timer = 5; +} + +static void +dc_setfilt(struct dc_softc *sc) +{ + + if (DC_IS_INTEL(sc) || DC_IS_MACRONIX(sc) || DC_IS_PNIC(sc) || + DC_IS_PNICII(sc) || DC_IS_DAVICOM(sc) || DC_IS_CONEXANT(sc)) + dc_setfilt_21143(sc); + + if (DC_IS_ASIX(sc)) + dc_setfilt_asix(sc); + + if (DC_IS_ADMTEK(sc)) + dc_setfilt_admtek(sc); + + if (DC_IS_XIRCOM(sc)) + dc_setfilt_xircom(sc); +} + +/* + * In order to fiddle with the 'full-duplex' and '100Mbps' bits in + * the netconfig register, we first have to put the transmit and/or + * receive logic in the idle state. + */ +static void +dc_setcfg(struct dc_softc *sc, int media) +{ + int i, restart = 0, watchdogreg; + u_int32_t isr; + + if (IFM_SUBTYPE(media) == IFM_NONE) + return; + + if (CSR_READ_4(sc, DC_NETCFG) & (DC_NETCFG_TX_ON | DC_NETCFG_RX_ON)) { + restart = 1; + DC_CLRBIT(sc, DC_NETCFG, (DC_NETCFG_TX_ON | DC_NETCFG_RX_ON)); + + for (i = 0; i < DC_TIMEOUT; i++) { + isr = CSR_READ_4(sc, DC_ISR); + if (isr & DC_ISR_TX_IDLE && + ((isr & DC_ISR_RX_STATE) == DC_RXSTATE_STOPPED || + (isr & DC_ISR_RX_STATE) == DC_RXSTATE_WAIT)) + break; + DELAY(10); + } + + if (i == DC_TIMEOUT) + printf("dc%d: failed to force tx and " + "rx to idle state\n", sc->dc_unit); + } + + if (IFM_SUBTYPE(media) == IFM_100_TX) { + DC_CLRBIT(sc, DC_NETCFG, DC_NETCFG_SPEEDSEL); + DC_SETBIT(sc, DC_NETCFG, DC_NETCFG_HEARTBEAT); + if (sc->dc_pmode == DC_PMODE_MII) { + if (DC_IS_INTEL(sc)) { + /* There's a write enable bit here that reads as 1. */ + watchdogreg = CSR_READ_4(sc, DC_WATCHDOG); + watchdogreg &= ~DC_WDOG_CTLWREN; + watchdogreg |= DC_WDOG_JABBERDIS; + CSR_WRITE_4(sc, DC_WATCHDOG, watchdogreg); + } else { + DC_SETBIT(sc, DC_WATCHDOG, DC_WDOG_JABBERDIS); + } + DC_CLRBIT(sc, DC_NETCFG, (DC_NETCFG_PCS | + DC_NETCFG_PORTSEL | DC_NETCFG_SCRAMBLER)); + if (sc->dc_type == DC_TYPE_98713) + DC_SETBIT(sc, DC_NETCFG, (DC_NETCFG_PCS | + DC_NETCFG_SCRAMBLER)); + if (!DC_IS_DAVICOM(sc)) + DC_SETBIT(sc, DC_NETCFG, DC_NETCFG_PORTSEL); + DC_CLRBIT(sc, DC_10BTCTRL, 0xFFFF); + if (DC_IS_INTEL(sc)) + dc_apply_fixup(sc, IFM_AUTO); + } else { + if (DC_IS_PNIC(sc)) { + DC_PN_GPIO_SETBIT(sc, DC_PN_GPIO_SPEEDSEL); + DC_PN_GPIO_SETBIT(sc, DC_PN_GPIO_100TX_LOOP); + DC_SETBIT(sc, DC_PN_NWAY, DC_PN_NWAY_SPEEDSEL); + } + DC_SETBIT(sc, DC_NETCFG, DC_NETCFG_PORTSEL); + DC_SETBIT(sc, DC_NETCFG, DC_NETCFG_PCS); + DC_SETBIT(sc, DC_NETCFG, DC_NETCFG_SCRAMBLER); + if (DC_IS_INTEL(sc)) + dc_apply_fixup(sc, + (media & IFM_GMASK) == IFM_FDX ? + IFM_100_TX | IFM_FDX : IFM_100_TX); + } + } + + if (IFM_SUBTYPE(media) == IFM_10_T) { + DC_SETBIT(sc, DC_NETCFG, DC_NETCFG_SPEEDSEL); + DC_CLRBIT(sc, DC_NETCFG, DC_NETCFG_HEARTBEAT); + if (sc->dc_pmode == DC_PMODE_MII) { + /* There's a write enable bit here that reads as 1. */ + if (DC_IS_INTEL(sc)) { + watchdogreg = CSR_READ_4(sc, DC_WATCHDOG); + watchdogreg &= ~DC_WDOG_CTLWREN; + watchdogreg |= DC_WDOG_JABBERDIS; + CSR_WRITE_4(sc, DC_WATCHDOG, watchdogreg); + } else { + DC_SETBIT(sc, DC_WATCHDOG, DC_WDOG_JABBERDIS); + } + DC_CLRBIT(sc, DC_NETCFG, (DC_NETCFG_PCS | + DC_NETCFG_PORTSEL | DC_NETCFG_SCRAMBLER)); + if (sc->dc_type == DC_TYPE_98713) + DC_SETBIT(sc, DC_NETCFG, DC_NETCFG_PCS); + if (!DC_IS_DAVICOM(sc)) + DC_SETBIT(sc, DC_NETCFG, DC_NETCFG_PORTSEL); + DC_CLRBIT(sc, DC_10BTCTRL, 0xFFFF); + if (DC_IS_INTEL(sc)) + dc_apply_fixup(sc, IFM_AUTO); + } else { + if (DC_IS_PNIC(sc)) { + DC_PN_GPIO_CLRBIT(sc, DC_PN_GPIO_SPEEDSEL); + DC_PN_GPIO_SETBIT(sc, DC_PN_GPIO_100TX_LOOP); + DC_CLRBIT(sc, DC_PN_NWAY, DC_PN_NWAY_SPEEDSEL); + } + DC_CLRBIT(sc, DC_NETCFG, DC_NETCFG_PORTSEL); + DC_CLRBIT(sc, DC_NETCFG, DC_NETCFG_PCS); + DC_CLRBIT(sc, DC_NETCFG, DC_NETCFG_SCRAMBLER); + if (DC_IS_INTEL(sc)) { + DC_CLRBIT(sc, DC_SIARESET, DC_SIA_RESET); + DC_CLRBIT(sc, DC_10BTCTRL, 0xFFFF); + if ((media & IFM_GMASK) == IFM_FDX) + DC_SETBIT(sc, DC_10BTCTRL, 0x7F3D); + else + DC_SETBIT(sc, DC_10BTCTRL, 0x7F3F); + DC_SETBIT(sc, DC_SIARESET, DC_SIA_RESET); + DC_CLRBIT(sc, DC_10BTCTRL, + DC_TCTL_AUTONEGENBL); + dc_apply_fixup(sc, + (media & IFM_GMASK) == IFM_FDX ? + IFM_10_T | IFM_FDX : IFM_10_T); + DELAY(20000); + } + } + } + + /* + * If this is a Davicom DM9102A card with a DM9801 HomePNA + * PHY and we want HomePNA mode, set the portsel bit to turn + * on the external MII port. + */ + if (DC_IS_DAVICOM(sc)) { + if (IFM_SUBTYPE(media) == IFM_HPNA_1) { + DC_SETBIT(sc, DC_NETCFG, DC_NETCFG_PORTSEL); + sc->dc_link = 1; + } else { + DC_CLRBIT(sc, DC_NETCFG, DC_NETCFG_PORTSEL); + } + } + + if ((media & IFM_GMASK) == IFM_FDX) { + DC_SETBIT(sc, DC_NETCFG, DC_NETCFG_FULLDUPLEX); + if (sc->dc_pmode == DC_PMODE_SYM && DC_IS_PNIC(sc)) + DC_SETBIT(sc, DC_PN_NWAY, DC_PN_NWAY_DUPLEX); + } else { + DC_CLRBIT(sc, DC_NETCFG, DC_NETCFG_FULLDUPLEX); + if (sc->dc_pmode == DC_PMODE_SYM && DC_IS_PNIC(sc)) + DC_CLRBIT(sc, DC_PN_NWAY, DC_PN_NWAY_DUPLEX); + } + + if (restart) + DC_SETBIT(sc, DC_NETCFG, DC_NETCFG_TX_ON | DC_NETCFG_RX_ON); +} + +static void +dc_reset(struct dc_softc *sc) +{ + int i; + + DC_SETBIT(sc, DC_BUSCTL, DC_BUSCTL_RESET); + + for (i = 0; i < DC_TIMEOUT; i++) { + DELAY(10); + if (!(CSR_READ_4(sc, DC_BUSCTL) & DC_BUSCTL_RESET)) + break; + } + + if (DC_IS_ASIX(sc) || DC_IS_ADMTEK(sc) || DC_IS_CONEXANT(sc) || + DC_IS_XIRCOM(sc) || DC_IS_INTEL(sc)) { + DELAY(10000); + DC_CLRBIT(sc, DC_BUSCTL, DC_BUSCTL_RESET); + i = 0; + } + + if (i == DC_TIMEOUT) + printf("dc%d: reset never completed!\n", sc->dc_unit); + + /* Wait a little while for the chip to get its brains in order. */ + DELAY(1000); + + CSR_WRITE_4(sc, DC_IMR, 0x00000000); + CSR_WRITE_4(sc, DC_BUSCTL, 0x00000000); + CSR_WRITE_4(sc, DC_NETCFG, 0x00000000); + + /* + * Bring the SIA out of reset. In some cases, it looks + * like failing to unreset the SIA soon enough gets it + * into a state where it will never come out of reset + * until we reset the whole chip again. + */ + if (DC_IS_INTEL(sc)) { + DC_SETBIT(sc, DC_SIARESET, DC_SIA_RESET); + CSR_WRITE_4(sc, DC_10BTCTRL, 0); + CSR_WRITE_4(sc, DC_WATCHDOG, 0); + } +} + +static struct dc_type * +dc_devtype(device_t dev) +{ + struct dc_type *t; + u_int32_t rev; + + t = dc_devs; + + while (t->dc_name != NULL) { + if ((pci_get_vendor(dev) == t->dc_vid) && + (pci_get_device(dev) == t->dc_did)) { + /* Check the PCI revision */ + rev = pci_read_config(dev, DC_PCI_CFRV, 4) & 0xFF; + if (t->dc_did == DC_DEVICEID_98713 && + rev >= DC_REVISION_98713A) + t++; + if (t->dc_did == DC_DEVICEID_98713_CP && + rev >= DC_REVISION_98713A) + t++; + if (t->dc_did == DC_DEVICEID_987x5 && + rev >= DC_REVISION_98715AEC_C) + t++; + if (t->dc_did == DC_DEVICEID_987x5 && + rev >= DC_REVISION_98725) + t++; + if (t->dc_did == DC_DEVICEID_AX88140A && + rev >= DC_REVISION_88141) + t++; + if (t->dc_did == DC_DEVICEID_82C168 && + rev >= DC_REVISION_82C169) + t++; + if (t->dc_did == DC_DEVICEID_DM9102 && + rev >= DC_REVISION_DM9102A) + t++; + return (t); + } + t++; + } + + return (NULL); +} + +/* + * Probe for a 21143 or clone chip. Check the PCI vendor and device + * IDs against our list and return a device name if we find a match. + * We do a little bit of extra work to identify the exact type of + * chip. The MX98713 and MX98713A have the same PCI vendor/device ID, + * but different revision IDs. The same is true for 98715/98715A + * chips and the 98725, as well as the ASIX and ADMtek chips. In some + * cases, the exact chip revision affects driver behavior. + */ +static int +dc_probe(device_t dev) +{ + struct dc_type *t; + + t = dc_devtype(dev); + + if (t != NULL) { + device_set_desc(dev, t->dc_name); + return (0); + } + + return (ENXIO); +} + +static void +dc_acpi(device_t dev) +{ + int unit; + u_int32_t iobase, membase, irq; + + unit = device_get_unit(dev); + + if (pci_get_powerstate(dev) != PCI_POWERSTATE_D0) { + /* Save important PCI config data. */ + iobase = pci_read_config(dev, DC_PCI_CFBIO, 4); + membase = pci_read_config(dev, DC_PCI_CFBMA, 4); + irq = pci_read_config(dev, DC_PCI_CFIT, 4); + + /* Reset the power state. */ + printf("dc%d: chip is in D%d power mode " + "-- setting to D0\n", unit, + pci_get_powerstate(dev)); + pci_set_powerstate(dev, PCI_POWERSTATE_D0); + + /* Restore PCI config data. */ + pci_write_config(dev, DC_PCI_CFBIO, iobase, 4); + pci_write_config(dev, DC_PCI_CFBMA, membase, 4); + pci_write_config(dev, DC_PCI_CFIT, irq, 4); + } +} + +static void +dc_apply_fixup(struct dc_softc *sc, int media) +{ + struct dc_mediainfo *m; + u_int8_t *p; + int i; + u_int32_t reg; + + m = sc->dc_mi; + + while (m != NULL) { + if (m->dc_media == media) + break; + m = m->dc_next; + } + + if (m == NULL) + return; + + for (i = 0, p = m->dc_reset_ptr; i < m->dc_reset_len; i++, p += 2) { + reg = (p[0] | (p[1] << 8)) << 16; + CSR_WRITE_4(sc, DC_WATCHDOG, reg); + } + + for (i = 0, p = m->dc_gp_ptr; i < m->dc_gp_len; i++, p += 2) { + reg = (p[0] | (p[1] << 8)) << 16; + CSR_WRITE_4(sc, DC_WATCHDOG, reg); + } +} + +static void +dc_decode_leaf_sia(struct dc_softc *sc, struct dc_eblock_sia *l) +{ + struct dc_mediainfo *m; + + m = malloc(sizeof(struct dc_mediainfo), M_DEVBUF, M_NOWAIT | M_ZERO); + if (l->dc_sia_code == DC_SIA_CODE_10BT) + m->dc_media = IFM_10_T; + + if (l->dc_sia_code == DC_SIA_CODE_10BT_FDX) + m->dc_media = IFM_10_T | IFM_FDX; + + if (l->dc_sia_code == DC_SIA_CODE_10B2) + m->dc_media = IFM_10_2; + + if (l->dc_sia_code == DC_SIA_CODE_10B5) + m->dc_media = IFM_10_5; + + m->dc_gp_len = 2; + m->dc_gp_ptr = (u_int8_t *)&l->dc_sia_gpio_ctl; + + m->dc_next = sc->dc_mi; + sc->dc_mi = m; + + sc->dc_pmode = DC_PMODE_SIA; +} + +static void +dc_decode_leaf_sym(struct dc_softc *sc, struct dc_eblock_sym *l) +{ + struct dc_mediainfo *m; + + m = malloc(sizeof(struct dc_mediainfo), M_DEVBUF, M_NOWAIT | M_ZERO); + if (l->dc_sym_code == DC_SYM_CODE_100BT) + m->dc_media = IFM_100_TX; + + if (l->dc_sym_code == DC_SYM_CODE_100BT_FDX) + m->dc_media = IFM_100_TX | IFM_FDX; + + m->dc_gp_len = 2; + m->dc_gp_ptr = (u_int8_t *)&l->dc_sym_gpio_ctl; + + m->dc_next = sc->dc_mi; + sc->dc_mi = m; + + sc->dc_pmode = DC_PMODE_SYM; +} + +static void +dc_decode_leaf_mii(struct dc_softc *sc, struct dc_eblock_mii *l) +{ + struct dc_mediainfo *m; + u_int8_t *p; + + m = malloc(sizeof(struct dc_mediainfo), M_DEVBUF, M_NOWAIT | M_ZERO); + /* We abuse IFM_AUTO to represent MII. */ + m->dc_media = IFM_AUTO; + m->dc_gp_len = l->dc_gpr_len; + + p = (u_int8_t *)l; + p += sizeof(struct dc_eblock_mii); + m->dc_gp_ptr = p; + p += 2 * l->dc_gpr_len; + m->dc_reset_len = *p; + p++; + m->dc_reset_ptr = p; + + m->dc_next = sc->dc_mi; + sc->dc_mi = m; +} + +static void +dc_read_srom(struct dc_softc *sc, int bits) +{ + int size; + + size = 2 << bits; + sc->dc_srom = malloc(size, M_DEVBUF, M_NOWAIT); + dc_read_eeprom(sc, (caddr_t)sc->dc_srom, 0, (size / 2), 0); +} + +static void +dc_parse_21143_srom(struct dc_softc *sc) +{ + struct dc_leaf_hdr *lhdr; + struct dc_eblock_hdr *hdr; + int have_mii, i, loff; + char *ptr; + + have_mii = 0; + loff = sc->dc_srom[27]; + lhdr = (struct dc_leaf_hdr *)&(sc->dc_srom[loff]); + + ptr = (char *)lhdr; + ptr += sizeof(struct dc_leaf_hdr) - 1; + /* + * Look if we got a MII media block. + */ + for (i = 0; i < lhdr->dc_mcnt; i++) { + hdr = (struct dc_eblock_hdr *)ptr; + if (hdr->dc_type == DC_EBLOCK_MII) + have_mii++; + + ptr += (hdr->dc_len & 0x7F); + ptr++; + } + + /* + * Do the same thing again. Only use SIA and SYM media + * blocks if no MII media block is available. + */ + ptr = (char *)lhdr; + ptr += sizeof(struct dc_leaf_hdr) - 1; + for (i = 0; i < lhdr->dc_mcnt; i++) { + hdr = (struct dc_eblock_hdr *)ptr; + switch (hdr->dc_type) { + case DC_EBLOCK_MII: + dc_decode_leaf_mii(sc, (struct dc_eblock_mii *)hdr); + break; + case DC_EBLOCK_SIA: + if (! have_mii) + dc_decode_leaf_sia(sc, + (struct dc_eblock_sia *)hdr); + break; + case DC_EBLOCK_SYM: + if (! have_mii) + dc_decode_leaf_sym(sc, + (struct dc_eblock_sym *)hdr); + break; + default: + /* Don't care. Yet. */ + break; + } + ptr += (hdr->dc_len & 0x7F); + ptr++; + } +} + +/* + * Attach the interface. Allocate softc structures, do ifmedia + * setup and ethernet/BPF attach. + */ +static int +dc_attach(device_t dev) +{ + int tmp = 0; + u_char eaddr[ETHER_ADDR_LEN]; + u_int32_t command; + struct dc_softc *sc; + struct ifnet *ifp; + u_int32_t revision; + int unit, error = 0, rid, mac_offset; + u_int8_t *mac; + + sc = device_get_softc(dev); + unit = device_get_unit(dev); + + mtx_init(&sc->dc_mtx, device_get_nameunit(dev), MTX_NETWORK_LOCK, + MTX_DEF | MTX_RECURSE); + + /* + * Handle power management nonsense. + */ + dc_acpi(dev); + + /* + * Map control/status registers. + */ + pci_enable_busmaster(dev); + + rid = DC_RID; + sc->dc_res = bus_alloc_resource(dev, DC_RES, &rid, + 0, ~0, 1, RF_ACTIVE); + + if (sc->dc_res == NULL) { + printf("dc%d: couldn't map ports/memory\n", unit); + error = ENXIO; + goto fail; + } + + sc->dc_btag = rman_get_bustag(sc->dc_res); + sc->dc_bhandle = rman_get_bushandle(sc->dc_res); + + /* Allocate interrupt. */ + rid = 0; + sc->dc_irq = bus_alloc_resource(dev, SYS_RES_IRQ, &rid, 0, ~0, 1, + RF_SHAREABLE | RF_ACTIVE); + + if (sc->dc_irq == NULL) { + printf("dc%d: couldn't map interrupt\n", unit); + error = ENXIO; + goto fail; + } + + /* Need this info to decide on a chip type. */ + sc->dc_info = dc_devtype(dev); + revision = pci_read_config(dev, DC_PCI_CFRV, 4) & 0x000000FF; + + /* Get the eeprom width, but PNIC and XIRCOM have diff eeprom */ + if (sc->dc_info->dc_did != DC_DEVICEID_82C168 && + sc->dc_info->dc_did != DC_DEVICEID_X3201) + dc_eeprom_width(sc); + + switch (sc->dc_info->dc_did) { + case DC_DEVICEID_21143: + sc->dc_type = DC_TYPE_21143; + sc->dc_flags |= DC_TX_POLL | DC_TX_USE_TX_INTR; + sc->dc_flags |= DC_REDUCED_MII_POLL; + /* Save EEPROM contents so we can parse them later. */ + dc_read_srom(sc, sc->dc_romwidth); + break; + case DC_DEVICEID_DM9009: + case DC_DEVICEID_DM9100: + case DC_DEVICEID_DM9102: + sc->dc_type = DC_TYPE_DM9102; + sc->dc_flags |= DC_TX_COALESCE | DC_TX_INTR_ALWAYS; + sc->dc_flags |= DC_REDUCED_MII_POLL | DC_TX_STORENFWD; + sc->dc_pmode = DC_PMODE_MII; + /* Increase the latency timer value. */ + command = pci_read_config(dev, DC_PCI_CFLT, 4); + command &= 0xFFFF00FF; + command |= 0x00008000; + pci_write_config(dev, DC_PCI_CFLT, command, 4); + break; + case DC_DEVICEID_AL981: + sc->dc_type = DC_TYPE_AL981; + sc->dc_flags |= DC_TX_USE_TX_INTR; + sc->dc_flags |= DC_TX_ADMTEK_WAR; + sc->dc_pmode = DC_PMODE_MII; + dc_read_srom(sc, sc->dc_romwidth); + break; + case DC_DEVICEID_AN985: + case DC_DEVICEID_ADM9511: + case DC_DEVICEID_ADM9513: + case DC_DEVICEID_FE2500: + case DC_DEVICEID_EN2242: + case DC_DEVICEID_HAWKING_PN672TX: + case DC_DEVICEID_3CSOHOB: + sc->dc_type = DC_TYPE_AN985; + sc->dc_flags |= DC_64BIT_HASH; + sc->dc_flags |= DC_TX_USE_TX_INTR; + sc->dc_flags |= DC_TX_ADMTEK_WAR; + sc->dc_pmode = DC_PMODE_MII; + dc_read_srom(sc, sc->dc_romwidth); + break; + case DC_DEVICEID_98713: + case DC_DEVICEID_98713_CP: + if (revision < DC_REVISION_98713A) { + sc->dc_type = DC_TYPE_98713; + } + if (revision >= DC_REVISION_98713A) { + sc->dc_type = DC_TYPE_98713A; + sc->dc_flags |= DC_21143_NWAY; + } + sc->dc_flags |= DC_REDUCED_MII_POLL; + sc->dc_flags |= DC_TX_POLL | DC_TX_USE_TX_INTR; + break; + case DC_DEVICEID_987x5: + case DC_DEVICEID_EN1217: + /* + * Macronix MX98715AEC-C/D/E parts have only a + * 128-bit hash table. We need to deal with these + * in the same manner as the PNIC II so that we + * get the right number of bits out of the + * CRC routine. + */ + if (revision >= DC_REVISION_98715AEC_C && + revision < DC_REVISION_98725) + sc->dc_flags |= DC_128BIT_HASH; + sc->dc_type = DC_TYPE_987x5; + sc->dc_flags |= DC_TX_POLL | DC_TX_USE_TX_INTR; + sc->dc_flags |= DC_REDUCED_MII_POLL | DC_21143_NWAY; + break; + case DC_DEVICEID_98727: + sc->dc_type = DC_TYPE_987x5; + sc->dc_flags |= DC_TX_POLL | DC_TX_USE_TX_INTR; + sc->dc_flags |= DC_REDUCED_MII_POLL | DC_21143_NWAY; + break; + case DC_DEVICEID_82C115: + sc->dc_type = DC_TYPE_PNICII; + sc->dc_flags |= DC_TX_POLL | DC_TX_USE_TX_INTR | DC_128BIT_HASH; + sc->dc_flags |= DC_REDUCED_MII_POLL | DC_21143_NWAY; + break; + case DC_DEVICEID_82C168: + sc->dc_type = DC_TYPE_PNIC; + sc->dc_flags |= DC_TX_STORENFWD | DC_TX_INTR_ALWAYS; + sc->dc_flags |= DC_PNIC_RX_BUG_WAR; + sc->dc_pnic_rx_buf = malloc(DC_RXLEN * 5, M_DEVBUF, M_NOWAIT); + if (revision < DC_REVISION_82C169) + sc->dc_pmode = DC_PMODE_SYM; + break; + case DC_DEVICEID_AX88140A: + sc->dc_type = DC_TYPE_ASIX; + sc->dc_flags |= DC_TX_USE_TX_INTR | DC_TX_INTR_FIRSTFRAG; + sc->dc_flags |= DC_REDUCED_MII_POLL; + sc->dc_pmode = DC_PMODE_MII; + break; + case DC_DEVICEID_X3201: + sc->dc_type = DC_TYPE_XIRCOM; + sc->dc_flags |= DC_TX_INTR_ALWAYS | DC_TX_COALESCE | + DC_TX_ALIGN; + /* + * We don't actually need to coalesce, but we're doing + * it to obtain a double word aligned buffer. + * The DC_TX_COALESCE flag is required. + */ + sc->dc_pmode = DC_PMODE_MII; + break; + case DC_DEVICEID_RS7112: + sc->dc_type = DC_TYPE_CONEXANT; + sc->dc_flags |= DC_TX_INTR_ALWAYS; + sc->dc_flags |= DC_REDUCED_MII_POLL; + sc->dc_pmode = DC_PMODE_MII; + dc_read_srom(sc, sc->dc_romwidth); + break; + default: + printf("dc%d: unknown device: %x\n", sc->dc_unit, + sc->dc_info->dc_did); + break; + } + + /* Save the cache line size. */ + if (DC_IS_DAVICOM(sc)) + sc->dc_cachesize = 0; + else + sc->dc_cachesize = pci_read_config(dev, + DC_PCI_CFLT, 4) & 0xFF; + + /* Reset the adapter. */ + dc_reset(sc); + + /* Take 21143 out of snooze mode */ + if (DC_IS_INTEL(sc) || DC_IS_XIRCOM(sc)) { + command = pci_read_config(dev, DC_PCI_CFDD, 4); + command &= ~(DC_CFDD_SNOOZE_MODE | DC_CFDD_SLEEP_MODE); + pci_write_config(dev, DC_PCI_CFDD, command, 4); + } + + /* + * Try to learn something about the supported media. + * We know that ASIX and ADMtek and Davicom devices + * will *always* be using MII media, so that's a no-brainer. + * The tricky ones are the Macronix/PNIC II and the + * Intel 21143. + */ + if (DC_IS_INTEL(sc)) + dc_parse_21143_srom(sc); + else if (DC_IS_MACRONIX(sc) || DC_IS_PNICII(sc)) { + if (sc->dc_type == DC_TYPE_98713) + sc->dc_pmode = DC_PMODE_MII; + else + sc->dc_pmode = DC_PMODE_SYM; + } else if (!sc->dc_pmode) + sc->dc_pmode = DC_PMODE_MII; + + /* + * Get station address from the EEPROM. + */ + switch(sc->dc_type) { + case DC_TYPE_98713: + case DC_TYPE_98713A: + case DC_TYPE_987x5: + case DC_TYPE_PNICII: + dc_read_eeprom(sc, (caddr_t)&mac_offset, + (DC_EE_NODEADDR_OFFSET / 2), 1, 0); + dc_read_eeprom(sc, (caddr_t)&eaddr, (mac_offset / 2), 3, 0); + break; + case DC_TYPE_PNIC: + dc_read_eeprom(sc, (caddr_t)&eaddr, 0, 3, 1); + break; + case DC_TYPE_DM9102: + case DC_TYPE_21143: + case DC_TYPE_ASIX: + dc_read_eeprom(sc, (caddr_t)&eaddr, DC_EE_NODEADDR, 3, 0); + break; + case DC_TYPE_AL981: + case DC_TYPE_AN985: + bcopy(sc->dc_srom + DC_AL_EE_NODEADDR, &eaddr, + ETHER_ADDR_LEN); + dc_read_eeprom(sc, (caddr_t)&eaddr, DC_AL_EE_NODEADDR, 3, 0); + break; + case DC_TYPE_CONEXANT: + bcopy(sc->dc_srom + DC_CONEXANT_EE_NODEADDR, &eaddr, + ETHER_ADDR_LEN); + break; + case DC_TYPE_XIRCOM: + /* The MAC comes from the CIS. */ + mac = pci_get_ether(dev); + if (!mac) { + device_printf(dev, "No station address in CIS!\n"); + error = ENXIO; + goto fail; + } + bcopy(mac, eaddr, ETHER_ADDR_LEN); + break; + default: + dc_read_eeprom(sc, (caddr_t)&eaddr, DC_EE_NODEADDR, 3, 0); + break; + } + + /* + * A 21143 or clone chip was detected. Inform the world. + */ + printf("dc%d: Ethernet address: %6D\n", unit, eaddr, ":"); + + sc->dc_unit = unit; + bcopy(eaddr, &sc->arpcom.ac_enaddr, ETHER_ADDR_LEN); + + sc->dc_ldata = contigmalloc(sizeof(struct dc_list_data), M_DEVBUF, + M_NOWAIT, 0, 0xffffffff, PAGE_SIZE, 0); + + if (sc->dc_ldata == NULL) { + printf("dc%d: no memory for list buffers!\n", unit); + error = ENXIO; + goto fail; + } + + bzero(sc->dc_ldata, sizeof(struct dc_list_data)); + + ifp = &sc->arpcom.ac_if; + ifp->if_softc = sc; + ifp->if_unit = unit; + ifp->if_name = "dc"; + /* XXX: bleah, MTU gets overwritten in ether_ifattach() */ + ifp->if_mtu = ETHERMTU; + ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; + ifp->if_ioctl = dc_ioctl; + ifp->if_start = dc_start; + ifp->if_watchdog = dc_watchdog; + ifp->if_init = dc_init; + ifp->if_baudrate = 10000000; + ifp->if_snd.ifq_maxlen = DC_TX_LIST_CNT - 1; + + /* + * Do MII setup. If this is a 21143, check for a PHY on the + * MII bus after applying any necessary fixups to twiddle the + * GPIO bits. If we don't end up finding a PHY, restore the + * old selection (SIA only or SIA/SYM) and attach the dcphy + * driver instead. + */ + if (DC_IS_INTEL(sc)) { + dc_apply_fixup(sc, IFM_AUTO); + tmp = sc->dc_pmode; + sc->dc_pmode = DC_PMODE_MII; + } + + error = mii_phy_probe(dev, &sc->dc_miibus, + dc_ifmedia_upd, dc_ifmedia_sts); + + if (error && DC_IS_INTEL(sc)) { + sc->dc_pmode = tmp; + if (sc->dc_pmode != DC_PMODE_SIA) + sc->dc_pmode = DC_PMODE_SYM; + sc->dc_flags |= DC_21143_NWAY; + mii_phy_probe(dev, &sc->dc_miibus, + dc_ifmedia_upd, dc_ifmedia_sts); + /* + * For non-MII cards, we need to have the 21143 + * drive the LEDs. Except there are some systems + * like the NEC VersaPro NoteBook PC which have no + * LEDs, and twiddling these bits has adverse effects + * on them. (I.e. you suddenly can't get a link.) + */ + if (pci_read_config(dev, DC_PCI_CSID, 4) != 0x80281033) + sc->dc_flags |= DC_TULIP_LEDS; + error = 0; + } + + if (error) { + printf("dc%d: MII without any PHY!\n", sc->dc_unit); + goto fail; + } + + if (DC_IS_XIRCOM(sc)) { + /* + * setup General Purpose Port mode and data so the tulip + * can talk to the MII. + */ + CSR_WRITE_4(sc, DC_SIAGP, DC_SIAGP_WRITE_EN | DC_SIAGP_INT1_EN | + DC_SIAGP_MD_GP2_OUTPUT | DC_SIAGP_MD_GP0_OUTPUT); + DELAY(10); + CSR_WRITE_4(sc, DC_SIAGP, DC_SIAGP_INT1_EN | + DC_SIAGP_MD_GP2_OUTPUT | DC_SIAGP_MD_GP0_OUTPUT); + DELAY(10); + } + + if (DC_IS_ADMTEK(sc)) { + /* + * Set automatic TX underrun recovery for the ADMtek chips + */ + DC_SETBIT(sc, DC_AL_CR, DC_AL_CR_ATUR); + } + + /* + * Tell the upper layer(s) we support long frames. + */ + ifp->if_data.ifi_hdrlen = sizeof(struct ether_vlan_header); + ifp->if_capabilities |= IFCAP_VLAN_MTU; + + callout_init(&sc->dc_stat_ch, IS_MPSAFE); + +#ifdef SRM_MEDIA + sc->dc_srm_media = 0; + + /* Remember the SRM console media setting */ + if (DC_IS_INTEL(sc)) { + command = pci_read_config(dev, DC_PCI_CFDD, 4); + command &= ~(DC_CFDD_SNOOZE_MODE | DC_CFDD_SLEEP_MODE); + switch ((command >> 8) & 0xff) { + case 3: + sc->dc_srm_media = IFM_10_T; + break; + case 4: + sc->dc_srm_media = IFM_10_T | IFM_FDX; + break; + case 5: + sc->dc_srm_media = IFM_100_TX; + break; + case 6: + sc->dc_srm_media = IFM_100_TX | IFM_FDX; + break; + } + if (sc->dc_srm_media) + sc->dc_srm_media |= IFM_ACTIVE | IFM_ETHER; + } +#endif + + /* + * Call MI attach routine. + */ + ether_ifattach(ifp, eaddr); + + /* Hook interrupt last to avoid having to lock softc */ + error = bus_setup_intr(dev, sc->dc_irq, INTR_TYPE_NET | + (IS_MPSAFE ? INTR_MPSAFE : 0), + dc_intr, sc, &sc->dc_intrhand); + + if (error) { + printf("dc%d: couldn't set up irq\n", unit); + ether_ifdetach(ifp); + goto fail; + } + +fail: + if (error) + dc_detach(dev); + return (error); +} + +/* + * Shutdown hardware and free up resources. This can be called any + * time after the mutex has been initialized. It is called in both + * the error case in attach and the normal detach case so it needs + * to be careful about only freeing resources that have actually been + * allocated. + */ +static int +dc_detach(device_t dev) +{ + struct dc_softc *sc; + struct ifnet *ifp; + struct dc_mediainfo *m; + + sc = device_get_softc(dev); + KASSERT(mtx_initialized(&sc->dc_mtx), ("dc mutex not initialized")); + DC_LOCK(sc); + + ifp = &sc->arpcom.ac_if; + + /* These should only be active if attach succeeded */ + if (device_is_attached(dev)) { + dc_stop(sc); + ether_ifdetach(ifp); + } + if (sc->dc_miibus) + device_delete_child(dev, sc->dc_miibus); + bus_generic_detach(dev); + + if (sc->dc_intrhand) + bus_teardown_intr(dev, sc->dc_irq, sc->dc_intrhand); + if (sc->dc_irq) + bus_release_resource(dev, SYS_RES_IRQ, 0, sc->dc_irq); + if (sc->dc_res) + bus_release_resource(dev, DC_RES, DC_RID, sc->dc_res); + + if (sc->dc_ldata) + contigfree(sc->dc_ldata, sizeof(struct dc_list_data), M_DEVBUF); + free(sc->dc_pnic_rx_buf, M_DEVBUF); + + while (sc->dc_mi != NULL) { + m = sc->dc_mi->dc_next; + free(sc->dc_mi, M_DEVBUF); + sc->dc_mi = m; + } + free(sc->dc_srom, M_DEVBUF); + + DC_UNLOCK(sc); + mtx_destroy(&sc->dc_mtx); + + return (0); +} + +/* + * Initialize the transmit descriptors. + */ +static int +dc_list_tx_init(struct dc_softc *sc) +{ + struct dc_chain_data *cd; + struct dc_list_data *ld; + int i, nexti; + + cd = &sc->dc_cdata; + ld = sc->dc_ldata; + for (i = 0; i < DC_TX_LIST_CNT; i++) { + nexti = (i == (DC_TX_LIST_CNT - 1)) ? 0 : i+1; + ld->dc_tx_list[i].dc_next = vtophys(&ld->dc_tx_list[nexti]); + cd->dc_tx_chain[i] = NULL; + ld->dc_tx_list[i].dc_data = 0; + ld->dc_tx_list[i].dc_ctl = 0; + } + + cd->dc_tx_prod = cd->dc_tx_cons = cd->dc_tx_cnt = 0; + + return (0); +} + + +/* + * Initialize the RX descriptors and allocate mbufs for them. Note that + * we arrange the descriptors in a closed ring, so that the last descriptor + * points back to the first. + */ +static int +dc_list_rx_init(struct dc_softc *sc) +{ + struct dc_chain_data *cd; + struct dc_list_data *ld; + int i, nexti; + + cd = &sc->dc_cdata; + ld = sc->dc_ldata; + + for (i = 0; i < DC_RX_LIST_CNT; i++) { + if (dc_newbuf(sc, i, NULL) == ENOBUFS) + return (ENOBUFS); + nexti = (i == (DC_RX_LIST_CNT - 1)) ? 0 : i+1; + ld->dc_rx_list[i].dc_next = vtophys(&ld->dc_rx_list[nexti]); + } + + cd->dc_rx_prod = 0; + + return (0); +} + +/* + * Initialize an RX descriptor and attach an MBUF cluster. + */ +static int +dc_newbuf(struct dc_softc *sc, int i, struct mbuf *m) +{ + struct mbuf *m_new = NULL; + struct dc_desc *c; + + c = &sc->dc_ldata->dc_rx_list[i]; + + if (m == NULL) { + MGETHDR(m_new, M_DONTWAIT, MT_DATA); + if (m_new == NULL) + return (ENOBUFS); + + MCLGET(m_new, M_DONTWAIT); + if (!(m_new->m_flags & M_EXT)) { + 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, sizeof(u_int64_t)); + + /* + * If this is a PNIC chip, zero the buffer. This is part + * of the workaround for the receive bug in the 82c168 and + * 82c169 chips. + */ + if (sc->dc_flags & DC_PNIC_RX_BUG_WAR) + bzero(mtod(m_new, char *), m_new->m_len); + + sc->dc_cdata.dc_rx_chain[i] = m_new; + c->dc_data = vtophys(mtod(m_new, caddr_t)); + c->dc_ctl = DC_RXCTL_RLINK | DC_RXLEN; + c->dc_status = DC_RXSTAT_OWN; + + return (0); +} + +/* + * Grrrrr. + * The PNIC chip has a terrible bug in it that manifests itself during + * periods of heavy activity. The exact mode of failure if difficult to + * pinpoint: sometimes it only happens in promiscuous mode, sometimes it + * will happen on slow machines. The bug is that sometimes instead of + * uploading one complete frame during reception, it uploads what looks + * like the entire contents of its FIFO memory. The frame we want is at + * the end of the whole mess, but we never know exactly how much data has + * been uploaded, so salvaging the frame is hard. + * + * There is only one way to do it reliably, and it's disgusting. + * Here's what we know: + * + * - We know there will always be somewhere between one and three extra + * descriptors uploaded. + * + * - We know the desired received frame will always be at the end of the + * total data upload. + * + * - We know the size of the desired received frame because it will be + * provided in the length field of the status word in the last descriptor. + * + * Here's what we do: + * + * - When we allocate buffers for the receive ring, we bzero() them. + * This means that we know that the buffer contents should be all + * zeros, except for data uploaded by the chip. + * + * - We also force the PNIC chip to upload frames that include the + * ethernet CRC at the end. + * + * - We gather all of the bogus frame data into a single buffer. + * + * - We then position a pointer at the end of this buffer and scan + * backwards until we encounter the first non-zero byte of data. + * This is the end of the received frame. We know we will encounter + * some data at the end of the frame because the CRC will always be + * there, so even if the sender transmits a packet of all zeros, + * we won't be fooled. + * + * - We know the size of the actual received frame, so we subtract + * that value from the current pointer location. This brings us + * to the start of the actual received packet. + * + * - We copy this into an mbuf and pass it on, along with the actual + * frame length. + * + * The performance hit is tremendous, but it beats dropping frames all + * the time. + */ + +#define DC_WHOLEFRAME (DC_RXSTAT_FIRSTFRAG | DC_RXSTAT_LASTFRAG) +static void +dc_pnic_rx_bug_war(struct dc_softc *sc, int idx) +{ + struct dc_desc *cur_rx; + struct dc_desc *c = NULL; + struct mbuf *m = NULL; + unsigned char *ptr; + int i, total_len; + u_int32_t rxstat = 0; + + i = sc->dc_pnic_rx_bug_save; + cur_rx = &sc->dc_ldata->dc_rx_list[idx]; + ptr = sc->dc_pnic_rx_buf; + bzero(ptr, DC_RXLEN * 5); + + /* Copy all the bytes from the bogus buffers. */ + while (1) { + c = &sc->dc_ldata->dc_rx_list[i]; + rxstat = c->dc_status; + m = sc->dc_cdata.dc_rx_chain[i]; + bcopy(mtod(m, char *), ptr, DC_RXLEN); + ptr += DC_RXLEN; + /* If this is the last buffer, break out. */ + if (i == idx || rxstat & DC_RXSTAT_LASTFRAG) + break; + dc_newbuf(sc, i, m); + DC_INC(i, DC_RX_LIST_CNT); + } + + /* Find the length of the actual receive frame. */ + total_len = DC_RXBYTES(rxstat); + + /* Scan backwards until we hit a non-zero byte. */ + while (*ptr == 0x00) + ptr--; + + /* Round off. */ + if ((uintptr_t)(ptr) & 0x3) + ptr -= 1; + + /* Now find the start of the frame. */ + ptr -= total_len; + if (ptr < sc->dc_pnic_rx_buf) + ptr = sc->dc_pnic_rx_buf; + + /* + * Now copy the salvaged frame to the last mbuf and fake up + * the status word to make it look like a successful + * frame reception. + */ + dc_newbuf(sc, i, m); + bcopy(ptr, mtod(m, char *), total_len); + cur_rx->dc_status = rxstat | DC_RXSTAT_FIRSTFRAG; +} + +/* + * This routine searches the RX ring for dirty descriptors in the + * event that the rxeof routine falls out of sync with the chip's + * current descriptor pointer. This may happen sometimes as a result + * of a "no RX buffer available" condition that happens when the chip + * consumes all of the RX buffers before the driver has a chance to + * process the RX ring. This routine may need to be called more than + * once to bring the driver back in sync with the chip, however we + * should still be getting RX DONE interrupts to drive the search + * for new packets in the RX ring, so we should catch up eventually. + */ +static int +dc_rx_resync(struct dc_softc *sc) +{ + struct dc_desc *cur_rx; + int i, pos; + + pos = sc->dc_cdata.dc_rx_prod; + + for (i = 0; i < DC_RX_LIST_CNT; i++) { + cur_rx = &sc->dc_ldata->dc_rx_list[pos]; + if (!(cur_rx->dc_status & DC_RXSTAT_OWN)) + break; + DC_INC(pos, DC_RX_LIST_CNT); + } + + /* If the ring really is empty, then just return. */ + if (i == DC_RX_LIST_CNT) + return (0); + + /* We've fallen behing the chip: catch it. */ + sc->dc_cdata.dc_rx_prod = pos; + + return (EAGAIN); +} + +/* + * A frame has been uploaded: pass the resulting mbuf chain up to + * the higher level protocols. + */ +static void +dc_rxeof(struct dc_softc *sc) +{ + struct mbuf *m; + struct ifnet *ifp; + struct dc_desc *cur_rx; + int i, total_len = 0; + u_int32_t rxstat; + + ifp = &sc->arpcom.ac_if; + i = sc->dc_cdata.dc_rx_prod; + + while (!(sc->dc_ldata->dc_rx_list[i].dc_status & DC_RXSTAT_OWN)) { +#ifdef DEVICE_POLLING + if (ifp->if_flags & IFF_POLLING) { + if (sc->rxcycles <= 0) + break; + sc->rxcycles--; + } +#endif + cur_rx = &sc->dc_ldata->dc_rx_list[i]; + rxstat = cur_rx->dc_status; + m = sc->dc_cdata.dc_rx_chain[i]; + total_len = DC_RXBYTES(rxstat); + + if (sc->dc_flags & DC_PNIC_RX_BUG_WAR) { + if ((rxstat & DC_WHOLEFRAME) != DC_WHOLEFRAME) { + if (rxstat & DC_RXSTAT_FIRSTFRAG) + sc->dc_pnic_rx_bug_save = i; + if ((rxstat & DC_RXSTAT_LASTFRAG) == 0) { + DC_INC(i, DC_RX_LIST_CNT); + continue; + } + dc_pnic_rx_bug_war(sc, i); + rxstat = cur_rx->dc_status; + total_len = DC_RXBYTES(rxstat); + } + } + + sc->dc_cdata.dc_rx_chain[i] = NULL; + + /* + * If an error occurs, update stats, clear the + * status word and leave the mbuf cluster in place: + * it should simply get re-used next time this descriptor + * comes up in the ring. However, don't report long + * frames as errors since they could be vlans. + */ + if ((rxstat & DC_RXSTAT_RXERR)) { + if (!(rxstat & DC_RXSTAT_GIANT) || + (rxstat & (DC_RXSTAT_CRCERR | DC_RXSTAT_DRIBBLE | + DC_RXSTAT_MIIERE | DC_RXSTAT_COLLSEEN | + DC_RXSTAT_RUNT | DC_RXSTAT_DE))) { + ifp->if_ierrors++; + if (rxstat & DC_RXSTAT_COLLSEEN) + ifp->if_collisions++; + dc_newbuf(sc, i, m); + if (rxstat & DC_RXSTAT_CRCERR) { + DC_INC(i, DC_RX_LIST_CNT); + continue; + } else { + dc_init(sc); + return; + } + } + } + + /* No errors; receive the packet. */ + total_len -= ETHER_CRC_LEN; +#ifdef __i386__ + /* + * On the x86 we do not have alignment problems, so try to + * allocate a new buffer for the receive ring, and pass up + * the one where the packet is already, saving the expensive + * copy done in m_devget(). + * If we are on an architecture with alignment problems, or + * if the allocation fails, then use m_devget and leave the + * existing buffer in the receive ring. + */ + if (dc_quick && dc_newbuf(sc, i, NULL) == 0) { + m->m_pkthdr.rcvif = ifp; + m->m_pkthdr.len = m->m_len = total_len; + DC_INC(i, DC_RX_LIST_CNT); + } else +#endif + { + struct mbuf *m0; + + m0 = m_devget(mtod(m, char *), total_len, + ETHER_ALIGN, ifp, NULL); + dc_newbuf(sc, i, m); + DC_INC(i, DC_RX_LIST_CNT); + if (m0 == NULL) { + ifp->if_ierrors++; + continue; + } + m = m0; + } + + ifp->if_ipackets++; + (*ifp->if_input)(ifp, m); + } + + sc->dc_cdata.dc_rx_prod = i; +} + +/* + * A frame was downloaded to the chip. It's safe for us to clean up + * the list buffers. + */ + +static void +dc_txeof(struct dc_softc *sc) +{ + struct dc_desc *cur_tx = NULL; + struct ifnet *ifp; + int idx; + u_int32_t txstat; + + ifp = &sc->arpcom.ac_if; + + /* + * Go through our tx list and free mbufs for those + * frames that have been transmitted. + */ + idx = sc->dc_cdata.dc_tx_cons; + while (idx != sc->dc_cdata.dc_tx_prod) { + + cur_tx = &sc->dc_ldata->dc_tx_list[idx]; + txstat = cur_tx->dc_status; + + if (txstat & DC_TXSTAT_OWN) + break; + + if (!(cur_tx->dc_ctl & DC_TXCTL_LASTFRAG) || + cur_tx->dc_ctl & DC_TXCTL_SETUP) { + if (cur_tx->dc_ctl & DC_TXCTL_SETUP) { + /* + * Yes, the PNIC is so brain damaged + * that it will sometimes generate a TX + * underrun error while DMAing the RX + * filter setup frame. If we detect this, + * we have to send the setup frame again, + * or else the filter won't be programmed + * correctly. + */ + if (DC_IS_PNIC(sc)) { + if (txstat & DC_TXSTAT_ERRSUM) + dc_setfilt(sc); + } + sc->dc_cdata.dc_tx_chain[idx] = NULL; + } + sc->dc_cdata.dc_tx_cnt--; + DC_INC(idx, DC_TX_LIST_CNT); + continue; + } + + if (DC_IS_XIRCOM(sc) || DC_IS_CONEXANT(sc)) { + /* + * XXX: Why does my Xircom taunt me so? + * For some reason it likes setting the CARRLOST flag + * even when the carrier is there. wtf?!? + * Who knows, but Conexant chips have the + * same problem. Maybe they took lessons + * from Xircom. + */ + if (/*sc->dc_type == DC_TYPE_21143 &&*/ + sc->dc_pmode == DC_PMODE_MII && + ((txstat & 0xFFFF) & ~(DC_TXSTAT_ERRSUM | + DC_TXSTAT_NOCARRIER))) + txstat &= ~DC_TXSTAT_ERRSUM; + } else { + if (/*sc->dc_type == DC_TYPE_21143 &&*/ + sc->dc_pmode == DC_PMODE_MII && + ((txstat & 0xFFFF) & ~(DC_TXSTAT_ERRSUM | + DC_TXSTAT_NOCARRIER | DC_TXSTAT_CARRLOST))) + txstat &= ~DC_TXSTAT_ERRSUM; + } + + if (txstat & DC_TXSTAT_ERRSUM) { + ifp->if_oerrors++; + if (txstat & DC_TXSTAT_EXCESSCOLL) + ifp->if_collisions++; + if (txstat & DC_TXSTAT_LATECOLL) + ifp->if_collisions++; + if (!(txstat & DC_TXSTAT_UNDERRUN)) { + dc_init(sc); + return; + } + } + + ifp->if_collisions += (txstat & DC_TXSTAT_COLLCNT) >> 3; + + ifp->if_opackets++; + if (sc->dc_cdata.dc_tx_chain[idx] != NULL) { + m_freem(sc->dc_cdata.dc_tx_chain[idx]); + sc->dc_cdata.dc_tx_chain[idx] = NULL; + } + + sc->dc_cdata.dc_tx_cnt--; + DC_INC(idx, DC_TX_LIST_CNT); + } + + if (idx != sc->dc_cdata.dc_tx_cons) { + /* Some buffers have been freed. */ + sc->dc_cdata.dc_tx_cons = idx; + ifp->if_flags &= ~IFF_OACTIVE; + } + ifp->if_timer = (sc->dc_cdata.dc_tx_cnt == 0) ? 0 : 5; +} + +static void +dc_tick(void *xsc) +{ + struct dc_softc *sc; + struct mii_data *mii; + struct ifnet *ifp; + u_int32_t r; + + sc = xsc; + DC_LOCK(sc); + ifp = &sc->arpcom.ac_if; + mii = device_get_softc(sc->dc_miibus); + + if (sc->dc_flags & DC_REDUCED_MII_POLL) { + if (sc->dc_flags & DC_21143_NWAY) { + r = CSR_READ_4(sc, DC_10BTSTAT); + if (IFM_SUBTYPE(mii->mii_media_active) == + IFM_100_TX && (r & DC_TSTAT_LS100)) { + sc->dc_link = 0; + mii_mediachg(mii); + } + if (IFM_SUBTYPE(mii->mii_media_active) == + IFM_10_T && (r & DC_TSTAT_LS10)) { + sc->dc_link = 0; + mii_mediachg(mii); + } + if (sc->dc_link == 0) + mii_tick(mii); + } else { + r = CSR_READ_4(sc, DC_ISR); + if ((r & DC_ISR_RX_STATE) == DC_RXSTATE_WAIT && + sc->dc_cdata.dc_tx_cnt == 0) { + mii_tick(mii); + if (!(mii->mii_media_status & IFM_ACTIVE)) + sc->dc_link = 0; + } + } + } else + mii_tick(mii); + + /* + * When the init routine completes, we expect to be able to send + * packets right away, and in fact the network code will send a + * gratuitous ARP the moment the init routine marks the interface + * as running. However, even though the MAC may have been initialized, + * there may be a delay of a few seconds before the PHY completes + * autonegotiation and the link is brought up. Any transmissions + * made during that delay will be lost. Dealing with this is tricky: + * we can't just pause in the init routine while waiting for the + * PHY to come ready since that would bring the whole system to + * a screeching halt for several seconds. + * + * What we do here is prevent the TX start routine from sending + * any packets until a link has been established. After the + * interface has been initialized, the tick routine will poll + * the state of the PHY until the IFM_ACTIVE flag is set. Until + * that time, packets will stay in the send queue, and once the + * link comes up, they will be flushed out to the wire. + */ + if (!sc->dc_link && mii->mii_media_status & IFM_ACTIVE && + IFM_SUBTYPE(mii->mii_media_active) != IFM_NONE) { + sc->dc_link++; + if (ifp->if_snd.ifq_head != NULL) + dc_start(ifp); + } + + if (sc->dc_flags & DC_21143_NWAY && !sc->dc_link) + callout_reset(&sc->dc_stat_ch, hz/10, dc_tick, sc); + else + callout_reset(&sc->dc_stat_ch, hz, dc_tick, sc); + + DC_UNLOCK(sc); +} + +/* + * A transmit underrun has occurred. Back off the transmit threshold, + * or switch to store and forward mode if we have to. + */ +static void +dc_tx_underrun(struct dc_softc *sc) +{ + u_int32_t isr; + int i; + + if (DC_IS_DAVICOM(sc)) + dc_init(sc); + + if (DC_IS_INTEL(sc)) { + /* + * The real 21143 requires that the transmitter be idle + * in order to change the transmit threshold or store + * and forward state. + */ + DC_CLRBIT(sc, DC_NETCFG, DC_NETCFG_TX_ON); + + for (i = 0; i < DC_TIMEOUT; i++) { + isr = CSR_READ_4(sc, DC_ISR); + if (isr & DC_ISR_TX_IDLE) + break; + DELAY(10); + } + if (i == DC_TIMEOUT) { + printf("dc%d: failed to force tx to idle state\n", + sc->dc_unit); + dc_init(sc); + } + } + + printf("dc%d: TX underrun -- ", sc->dc_unit); + sc->dc_txthresh += DC_TXTHRESH_INC; + if (sc->dc_txthresh > DC_TXTHRESH_MAX) { + printf("using store and forward mode\n"); + DC_SETBIT(sc, DC_NETCFG, DC_NETCFG_STORENFWD); + } else { + printf("increasing TX threshold\n"); + DC_CLRBIT(sc, DC_NETCFG, DC_NETCFG_TX_THRESH); + DC_SETBIT(sc, DC_NETCFG, sc->dc_txthresh); + } + + if (DC_IS_INTEL(sc)) + DC_SETBIT(sc, DC_NETCFG, DC_NETCFG_TX_ON); +} + +#ifdef DEVICE_POLLING +static poll_handler_t dc_poll; + +static void +dc_poll(struct ifnet *ifp, enum poll_cmd cmd, int count) +{ + struct dc_softc *sc = ifp->if_softc; + + if (cmd == POLL_DEREGISTER) { /* final call, enable interrupts */ + /* Re-enable interrupts. */ + CSR_WRITE_4(sc, DC_IMR, DC_INTRS); + return; + } + sc->rxcycles = count; + dc_rxeof(sc); + dc_txeof(sc); + if (ifp->if_snd.ifq_head != NULL && !(ifp->if_flags & IFF_OACTIVE)) + dc_start(ifp); + + if (cmd == POLL_AND_CHECK_STATUS) { /* also check status register */ + u_int32_t status; + + status = CSR_READ_4(sc, DC_ISR); + status &= (DC_ISR_RX_WATDOGTIMEO | DC_ISR_RX_NOBUF | + DC_ISR_TX_NOBUF | DC_ISR_TX_IDLE | DC_ISR_TX_UNDERRUN | + DC_ISR_BUS_ERR); + if (!status) + return; + /* ack what we have */ + CSR_WRITE_4(sc, DC_ISR, status); + + if (status & (DC_ISR_RX_WATDOGTIMEO | DC_ISR_RX_NOBUF)) { + u_int32_t r = CSR_READ_4(sc, DC_FRAMESDISCARDED); + ifp->if_ierrors += (r & 0xffff) + ((r >> 17) & 0x7ff); + + if (dc_rx_resync(sc)) + dc_rxeof(sc); + } + /* restart transmit unit if necessary */ + if (status & DC_ISR_TX_IDLE && sc->dc_cdata.dc_tx_cnt) + CSR_WRITE_4(sc, DC_TXSTART, 0xFFFFFFFF); + + if (status & DC_ISR_TX_UNDERRUN) + dc_tx_underrun(sc); + + if (status & DC_ISR_BUS_ERR) { + printf("dc_poll: dc%d bus error\n", sc->dc_unit); + dc_reset(sc); + dc_init(sc); + } + } +} +#endif /* DEVICE_POLLING */ + +static void +dc_intr(void *arg) +{ + struct dc_softc *sc; + struct ifnet *ifp; + u_int32_t status; + + sc = arg; + + if (sc->suspended) + return; + + if ((CSR_READ_4(sc, DC_ISR) & DC_INTRS) == 0) + return; + + DC_LOCK(sc); + ifp = &sc->arpcom.ac_if; +#ifdef DEVICE_POLLING + if (ifp->if_flags & IFF_POLLING) + goto done; + if (ether_poll_register(dc_poll, ifp)) { /* ok, disable interrupts */ + CSR_WRITE_4(sc, DC_IMR, 0x00000000); + goto done; + } +#endif + + /* Suppress unwanted interrupts */ + if (!(ifp->if_flags & IFF_UP)) { + if (CSR_READ_4(sc, DC_ISR) & DC_INTRS) + dc_stop(sc); + DC_UNLOCK(sc); + return; + } + + /* Disable interrupts. */ + CSR_WRITE_4(sc, DC_IMR, 0x00000000); + + while (((status = CSR_READ_4(sc, DC_ISR)) & DC_INTRS) + && status != 0xFFFFFFFF) { + + CSR_WRITE_4(sc, DC_ISR, status); + + if (status & DC_ISR_RX_OK) { + int curpkts; + curpkts = ifp->if_ipackets; + dc_rxeof(sc); + if (curpkts == ifp->if_ipackets) { + while (dc_rx_resync(sc)) + dc_rxeof(sc); + } + } + + if (status & (DC_ISR_TX_OK | DC_ISR_TX_NOBUF)) + dc_txeof(sc); + + if (status & DC_ISR_TX_IDLE) { + dc_txeof(sc); + if (sc->dc_cdata.dc_tx_cnt) { + DC_SETBIT(sc, DC_NETCFG, DC_NETCFG_TX_ON); + CSR_WRITE_4(sc, DC_TXSTART, 0xFFFFFFFF); + } + } + + if (status & DC_ISR_TX_UNDERRUN) + dc_tx_underrun(sc); + + if ((status & DC_ISR_RX_WATDOGTIMEO) + || (status & DC_ISR_RX_NOBUF)) { + int curpkts; + curpkts = ifp->if_ipackets; + dc_rxeof(sc); + if (curpkts == ifp->if_ipackets) { + while (dc_rx_resync(sc)) + dc_rxeof(sc); + } + } + + if (status & DC_ISR_BUS_ERR) { + dc_reset(sc); + dc_init(sc); + } + } + + /* Re-enable interrupts. */ + CSR_WRITE_4(sc, DC_IMR, DC_INTRS); + + if (ifp->if_snd.ifq_head != NULL) + dc_start(ifp); + +#ifdef DEVICE_POLLING +done: +#endif + + DC_UNLOCK(sc); +} + +/* + * Encapsulate an mbuf chain in a descriptor by coupling the mbuf data + * pointers to the fragment pointers. + */ +static int +dc_encap(struct dc_softc *sc, struct mbuf *m_head, u_int32_t *txidx) +{ + struct dc_desc *f = NULL; + struct mbuf *m; + int frag, cur, cnt = 0, chainlen = 0; + + /* + * If there's no way we can send any packets, return now. + */ + if (DC_TX_LIST_CNT - sc->dc_cdata.dc_tx_cnt < 6) + return (ENOBUFS); + + /* + * Count the number of frags in this chain to see if + * we need to m_defrag. Since the descriptor list is shared + * by all packets, we'll m_defrag long chains so that they + * do not use up the entire list, even if they would fit. + */ + + for (m = m_head; m != NULL; m = m->m_next) + chainlen++; + + if ((chainlen > DC_TX_LIST_CNT / 4) || + ((DC_TX_LIST_CNT - (chainlen + sc->dc_cdata.dc_tx_cnt)) < 6)) { + m = m_defrag(m_head, M_DONTWAIT); + if (m == NULL) + return (ENOBUFS); + m_head = m; + } + + /* + * Start packing the mbufs in this chain into + * the fragment pointers. Stop when we run out + * of fragments or hit the end of the mbuf chain. + */ + m = m_head; + cur = frag = *txidx; + + for (m = m_head; m != NULL; m = m->m_next) { + if (m->m_len != 0) { + if (sc->dc_flags & DC_TX_ADMTEK_WAR) { + if (*txidx != sc->dc_cdata.dc_tx_prod && + frag == (DC_TX_LIST_CNT - 1)) + return (ENOBUFS); + } + if ((DC_TX_LIST_CNT - + (sc->dc_cdata.dc_tx_cnt + cnt)) < 5) + return (ENOBUFS); + + f = &sc->dc_ldata->dc_tx_list[frag]; + f->dc_ctl = DC_TXCTL_TLINK | m->m_len; + if (cnt == 0) { + f->dc_status = 0; + f->dc_ctl |= DC_TXCTL_FIRSTFRAG; + } else + f->dc_status = DC_TXSTAT_OWN; + f->dc_data = vtophys(mtod(m, vm_offset_t)); + cur = frag; + DC_INC(frag, DC_TX_LIST_CNT); + cnt++; + } + } + + if (m != NULL) + return (ENOBUFS); + + sc->dc_cdata.dc_tx_cnt += cnt; + sc->dc_cdata.dc_tx_chain[cur] = m_head; + sc->dc_ldata->dc_tx_list[cur].dc_ctl |= DC_TXCTL_LASTFRAG; + if (sc->dc_flags & DC_TX_INTR_FIRSTFRAG) + sc->dc_ldata->dc_tx_list[*txidx].dc_ctl |= DC_TXCTL_FINT; + if (sc->dc_flags & DC_TX_INTR_ALWAYS) + sc->dc_ldata->dc_tx_list[cur].dc_ctl |= DC_TXCTL_FINT; + if (sc->dc_flags & DC_TX_USE_TX_INTR && sc->dc_cdata.dc_tx_cnt > 64) + sc->dc_ldata->dc_tx_list[cur].dc_ctl |= DC_TXCTL_FINT; + sc->dc_ldata->dc_tx_list[*txidx].dc_status = DC_TXSTAT_OWN; + *txidx = frag; + + return (0); +} + +/* + * Main transmit routine. To avoid having to do mbuf copies, we put pointers + * to the mbuf data regions directly in the transmit lists. We also save a + * copy of the pointers since the transmit list fragment pointers are + * physical addresses. + */ + +static void +dc_start(struct ifnet *ifp) +{ + struct dc_softc *sc; + struct mbuf *m_head = NULL, *m; + int idx; + + sc = ifp->if_softc; + + DC_LOCK(sc); + + if (!sc->dc_link && ifp->if_snd.ifq_len < 10) { + DC_UNLOCK(sc); + return; + } + + if (ifp->if_flags & IFF_OACTIVE) { + DC_UNLOCK(sc); + return; + } + + idx = sc->dc_cdata.dc_tx_prod; + + while (sc->dc_cdata.dc_tx_chain[idx] == NULL) { + IF_DEQUEUE(&ifp->if_snd, m_head); + if (m_head == NULL) + break; + + if (sc->dc_flags & DC_TX_COALESCE && + (m_head->m_next != NULL || + sc->dc_flags & DC_TX_ALIGN)) { + m = m_defrag(m_head, M_DONTWAIT); + if (m == NULL) { + IF_PREPEND(&ifp->if_snd, m_head); + ifp->if_flags |= IFF_OACTIVE; + break; + } else { + m_head = m; + } + } + + if (dc_encap(sc, m_head, &idx)) { + IF_PREPEND(&ifp->if_snd, m_head); + ifp->if_flags |= IFF_OACTIVE; + break; + } + + /* + * If there's a BPF listener, bounce a copy of this frame + * to him. + */ + BPF_MTAP(ifp, m_head); + + if (sc->dc_flags & DC_TX_ONE) { + ifp->if_flags |= IFF_OACTIVE; + break; + } + } + + /* Transmit */ + sc->dc_cdata.dc_tx_prod = idx; + if (!(sc->dc_flags & DC_TX_POLL)) + CSR_WRITE_4(sc, DC_TXSTART, 0xFFFFFFFF); + + /* + * Set a timeout in case the chip goes out to lunch. + */ + ifp->if_timer = 5; + + DC_UNLOCK(sc); +} + +static void +dc_init(void *xsc) +{ + struct dc_softc *sc = xsc; + struct ifnet *ifp = &sc->arpcom.ac_if; + struct mii_data *mii; + + DC_LOCK(sc); + + mii = device_get_softc(sc->dc_miibus); + + /* + * Cancel pending I/O and free all RX/TX buffers. + */ + dc_stop(sc); + dc_reset(sc); + + /* + * Set cache alignment and burst length. + */ + if (DC_IS_ASIX(sc) || DC_IS_DAVICOM(sc)) + CSR_WRITE_4(sc, DC_BUSCTL, 0); + else + CSR_WRITE_4(sc, DC_BUSCTL, DC_BUSCTL_MRME | DC_BUSCTL_MRLE); + /* + * Evenly share the bus between receive and transmit process. + */ + if (DC_IS_INTEL(sc)) + DC_SETBIT(sc, DC_BUSCTL, DC_BUSCTL_ARBITRATION); + if (DC_IS_DAVICOM(sc) || DC_IS_INTEL(sc)) { + DC_SETBIT(sc, DC_BUSCTL, DC_BURSTLEN_USECA); + } else { + DC_SETBIT(sc, DC_BUSCTL, DC_BURSTLEN_16LONG); + } + if (sc->dc_flags & DC_TX_POLL) + DC_SETBIT(sc, DC_BUSCTL, DC_TXPOLL_1); + switch(sc->dc_cachesize) { + case 32: + DC_SETBIT(sc, DC_BUSCTL, DC_CACHEALIGN_32LONG); + break; + case 16: + DC_SETBIT(sc, DC_BUSCTL, DC_CACHEALIGN_16LONG); + break; + case 8: + DC_SETBIT(sc, DC_BUSCTL, DC_CACHEALIGN_8LONG); + break; + case 0: + default: + DC_SETBIT(sc, DC_BUSCTL, DC_CACHEALIGN_NONE); + break; + } + + if (sc->dc_flags & DC_TX_STORENFWD) + DC_SETBIT(sc, DC_NETCFG, DC_NETCFG_STORENFWD); + else { + if (sc->dc_txthresh > DC_TXTHRESH_MAX) { + DC_SETBIT(sc, DC_NETCFG, DC_NETCFG_STORENFWD); + } else { + DC_CLRBIT(sc, DC_NETCFG, DC_NETCFG_STORENFWD); + DC_SETBIT(sc, DC_NETCFG, sc->dc_txthresh); + } + } + + DC_SETBIT(sc, DC_NETCFG, DC_NETCFG_NO_RXCRC); + DC_CLRBIT(sc, DC_NETCFG, DC_NETCFG_TX_BACKOFF); + + if (DC_IS_MACRONIX(sc) || DC_IS_PNICII(sc)) { + /* + * The app notes for the 98713 and 98715A say that + * in order to have the chips operate properly, a magic + * number must be written to CSR16. Macronix does not + * document the meaning of these bits so there's no way + * to know exactly what they do. The 98713 has a magic + * number all its own; the rest all use a different one. + */ + DC_CLRBIT(sc, DC_MX_MAGICPACKET, 0xFFFF0000); + if (sc->dc_type == DC_TYPE_98713) + DC_SETBIT(sc, DC_MX_MAGICPACKET, DC_MX_MAGIC_98713); + else + DC_SETBIT(sc, DC_MX_MAGICPACKET, DC_MX_MAGIC_98715); + } + + if (DC_IS_XIRCOM(sc)) { + /* + * setup General Purpose Port mode and data so the tulip + * can talk to the MII. + */ + CSR_WRITE_4(sc, DC_SIAGP, DC_SIAGP_WRITE_EN | DC_SIAGP_INT1_EN | + DC_SIAGP_MD_GP2_OUTPUT | DC_SIAGP_MD_GP0_OUTPUT); + DELAY(10); + CSR_WRITE_4(sc, DC_SIAGP, DC_SIAGP_INT1_EN | + DC_SIAGP_MD_GP2_OUTPUT | DC_SIAGP_MD_GP0_OUTPUT); + DELAY(10); + } + + DC_CLRBIT(sc, DC_NETCFG, DC_NETCFG_TX_THRESH); + DC_SETBIT(sc, DC_NETCFG, DC_TXTHRESH_MIN); + + /* Init circular RX list. */ + if (dc_list_rx_init(sc) == ENOBUFS) { + printf("dc%d: initialization failed: no " + "memory for rx buffers\n", sc->dc_unit); + dc_stop(sc); + DC_UNLOCK(sc); + return; + } + + /* + * Init tx descriptors. + */ + dc_list_tx_init(sc); + + /* + * Load the address of the RX list. + */ + CSR_WRITE_4(sc, DC_RXADDR, vtophys(&sc->dc_ldata->dc_rx_list[0])); + CSR_WRITE_4(sc, DC_TXADDR, vtophys(&sc->dc_ldata->dc_tx_list[0])); + + /* + * Enable interrupts. + */ +#ifdef DEVICE_POLLING + /* + * ... but only if we are not polling, and make sure they are off in + * the case of polling. Some cards (e.g. fxp) turn interrupts on + * after a reset. + */ + if (ifp->if_flags & IFF_POLLING) + CSR_WRITE_4(sc, DC_IMR, 0x00000000); + else +#endif + CSR_WRITE_4(sc, DC_IMR, DC_INTRS); + CSR_WRITE_4(sc, DC_ISR, 0xFFFFFFFF); + + /* Enable transmitter. */ + DC_SETBIT(sc, DC_NETCFG, DC_NETCFG_TX_ON); + + /* + * If this is an Intel 21143 and we're not using the + * MII port, program the LED control pins so we get + * link and activity indications. + */ + if (sc->dc_flags & DC_TULIP_LEDS) { + CSR_WRITE_4(sc, DC_WATCHDOG, + DC_WDOG_CTLWREN | DC_WDOG_LINK | DC_WDOG_ACTIVITY); + CSR_WRITE_4(sc, DC_WATCHDOG, 0); + } + + /* + * Load the RX/multicast filter. We do this sort of late + * because the filter programming scheme on the 21143 and + * some clones requires DMAing a setup frame via the TX + * engine, and we need the transmitter enabled for that. + */ + dc_setfilt(sc); + + /* Enable receiver. */ + DC_SETBIT(sc, DC_NETCFG, DC_NETCFG_RX_ON); + CSR_WRITE_4(sc, DC_RXSTART, 0xFFFFFFFF); + + mii_mediachg(mii); + dc_setcfg(sc, sc->dc_if_media); + + ifp->if_flags |= IFF_RUNNING; + ifp->if_flags &= ~IFF_OACTIVE; + + /* Don't start the ticker if this is a homePNA link. */ + if (IFM_SUBTYPE(mii->mii_media.ifm_media) == IFM_HPNA_1) + sc->dc_link = 1; + else { + if (sc->dc_flags & DC_21143_NWAY) + callout_reset(&sc->dc_stat_ch, hz/10, dc_tick, sc); + else + callout_reset(&sc->dc_stat_ch, hz, dc_tick, sc); + } + +#ifdef SRM_MEDIA + if(sc->dc_srm_media) { + struct ifreq ifr; + + ifr.ifr_media = sc->dc_srm_media; + ifmedia_ioctl(ifp, &ifr, &mii->mii_media, SIOCSIFMEDIA); + sc->dc_srm_media = 0; + } +#endif + DC_UNLOCK(sc); +} + +/* + * Set media options. + */ +static int +dc_ifmedia_upd(struct ifnet *ifp) +{ + struct dc_softc *sc; + struct mii_data *mii; + struct ifmedia *ifm; + + sc = ifp->if_softc; + mii = device_get_softc(sc->dc_miibus); + mii_mediachg(mii); + ifm = &mii->mii_media; + + if (DC_IS_DAVICOM(sc) && + IFM_SUBTYPE(ifm->ifm_media) == IFM_HPNA_1) + dc_setcfg(sc, ifm->ifm_media); + else + sc->dc_link = 0; + + return (0); +} + +/* + * Report current media status. + */ +static void +dc_ifmedia_sts(struct ifnet *ifp, struct ifmediareq *ifmr) +{ + struct dc_softc *sc; + struct mii_data *mii; + struct ifmedia *ifm; + + sc = ifp->if_softc; + mii = device_get_softc(sc->dc_miibus); + mii_pollstat(mii); + ifm = &mii->mii_media; + if (DC_IS_DAVICOM(sc)) { + if (IFM_SUBTYPE(ifm->ifm_media) == IFM_HPNA_1) { + ifmr->ifm_active = ifm->ifm_media; + ifmr->ifm_status = 0; + return; + } + } + ifmr->ifm_active = mii->mii_media_active; + ifmr->ifm_status = mii->mii_media_status; +} + +static int +dc_ioctl(struct ifnet *ifp, u_long command, caddr_t data) +{ + struct dc_softc *sc = ifp->if_softc; + struct ifreq *ifr = (struct ifreq *)data; + struct mii_data *mii; + int error = 0; + + DC_LOCK(sc); + + switch (command) { + case SIOCSIFFLAGS: + if (ifp->if_flags & IFF_UP) { + int need_setfilt = (ifp->if_flags ^ sc->dc_if_flags) & + (IFF_PROMISC | IFF_ALLMULTI); + + if (ifp->if_flags & IFF_RUNNING) { + if (need_setfilt) + dc_setfilt(sc); + } else { + sc->dc_txthresh = 0; + dc_init(sc); + } + } else { + if (ifp->if_flags & IFF_RUNNING) + dc_stop(sc); + } + sc->dc_if_flags = ifp->if_flags; + error = 0; + break; + case SIOCADDMULTI: + case SIOCDELMULTI: + dc_setfilt(sc); + error = 0; + break; + case SIOCGIFMEDIA: + case SIOCSIFMEDIA: + mii = device_get_softc(sc->dc_miibus); + error = ifmedia_ioctl(ifp, ifr, &mii->mii_media, command); +#ifdef SRM_MEDIA + if (sc->dc_srm_media) + sc->dc_srm_media = 0; +#endif + break; + default: + error = ether_ioctl(ifp, command, data); + break; + } + + DC_UNLOCK(sc); + + return (error); +} + +static void +dc_watchdog(struct ifnet *ifp) +{ + struct dc_softc *sc; + + sc = ifp->if_softc; + + DC_LOCK(sc); + + ifp->if_oerrors++; + printf("dc%d: watchdog timeout\n", sc->dc_unit); + + dc_stop(sc); + dc_reset(sc); + dc_init(sc); + + if (ifp->if_snd.ifq_head != NULL) + dc_start(ifp); + + DC_UNLOCK(sc); +} + +/* + * Stop the adapter and free any mbufs allocated to the + * RX and TX lists. + */ +static void +dc_stop(struct dc_softc *sc) +{ + int i; + struct ifnet *ifp; + + DC_LOCK(sc); + + ifp = &sc->arpcom.ac_if; + ifp->if_timer = 0; + + callout_stop(&sc->dc_stat_ch); + + ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); +#ifdef DEVICE_POLLING + ether_poll_deregister(ifp); +#endif + + DC_CLRBIT(sc, DC_NETCFG, (DC_NETCFG_RX_ON | DC_NETCFG_TX_ON)); + CSR_WRITE_4(sc, DC_IMR, 0x00000000); + CSR_WRITE_4(sc, DC_TXADDR, 0x00000000); + CSR_WRITE_4(sc, DC_RXADDR, 0x00000000); + sc->dc_link = 0; + + /* + * Free data in the RX lists. + */ + for (i = 0; i < DC_RX_LIST_CNT; i++) { + if (sc->dc_cdata.dc_rx_chain[i] != NULL) { + m_freem(sc->dc_cdata.dc_rx_chain[i]); + sc->dc_cdata.dc_rx_chain[i] = NULL; + } + } + bzero(&sc->dc_ldata->dc_rx_list, sizeof(sc->dc_ldata->dc_rx_list)); + + /* + * Free the TX list buffers. + */ + for (i = 0; i < DC_TX_LIST_CNT; i++) { + if (sc->dc_cdata.dc_tx_chain[i] != NULL) { + if (sc->dc_ldata->dc_tx_list[i].dc_ctl & + DC_TXCTL_SETUP) { + sc->dc_cdata.dc_tx_chain[i] = NULL; + continue; + } + m_freem(sc->dc_cdata.dc_tx_chain[i]); + sc->dc_cdata.dc_tx_chain[i] = NULL; + } + } + + bzero(&sc->dc_ldata->dc_tx_list, sizeof(sc->dc_ldata->dc_tx_list)); + + DC_UNLOCK(sc); +} + +/* + * Device suspend routine. Stop the interface and save some PCI + * settings in case the BIOS doesn't restore them properly on + * resume. + */ +static int +dc_suspend(device_t dev) +{ + struct dc_softc *sc; + int i, s; + + s = splimp(); + + sc = device_get_softc(dev); + + dc_stop(sc); + + for (i = 0; i < 5; i++) + sc->saved_maps[i] = pci_read_config(dev, PCIR_MAPS + i * 4, 4); + sc->saved_biosaddr = pci_read_config(dev, PCIR_BIOS, 4); + sc->saved_intline = pci_read_config(dev, PCIR_INTLINE, 1); + sc->saved_cachelnsz = pci_read_config(dev, PCIR_CACHELNSZ, 1); + sc->saved_lattimer = pci_read_config(dev, PCIR_LATTIMER, 1); + + sc->suspended = 1; + + splx(s); + return (0); +} + +/* + * Device resume routine. Restore some PCI settings in case the BIOS + * doesn't, re-enable busmastering, and restart the interface if + * appropriate. + */ +static int +dc_resume(device_t dev) +{ + struct dc_softc *sc; + struct ifnet *ifp; + int i, s; + + s = splimp(); + + sc = device_get_softc(dev); + ifp = &sc->arpcom.ac_if; + + dc_acpi(dev); + + /* better way to do this? */ + for (i = 0; i < 5; i++) + pci_write_config(dev, PCIR_MAPS + i * 4, sc->saved_maps[i], 4); + pci_write_config(dev, PCIR_BIOS, sc->saved_biosaddr, 4); + pci_write_config(dev, PCIR_INTLINE, sc->saved_intline, 1); + pci_write_config(dev, PCIR_CACHELNSZ, sc->saved_cachelnsz, 1); + pci_write_config(dev, PCIR_LATTIMER, sc->saved_lattimer, 1); + + /* reenable busmastering */ + pci_enable_busmaster(dev); + pci_enable_io(dev, DC_RES); + + /* reinitialize interface if necessary */ + if (ifp->if_flags & IFF_UP) + dc_init(sc); + + sc->suspended = 0; + + splx(s); + return (0); +} + +/* + * Stop all chip I/O so that the kernel's probe routines don't + * get confused by errant DMAs when rebooting. + */ +static void +dc_shutdown(device_t dev) +{ + struct dc_softc *sc; + + sc = device_get_softc(dev); + + dc_stop(sc); +} diff --git a/sys/dev/dc/if_dcreg.h b/sys/dev/dc/if_dcreg.h new file mode 100644 index 0000000..e638267 --- /dev/null +++ b/sys/dev/dc/if_dcreg.h @@ -0,0 +1,1185 @@ +/* + * Copyright (c) 1997, 1998, 1999 + * 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. + * + * $FreeBSD$ + */ + +/* + * 21143 and clone common register definitions. + */ + +#define DC_BUSCTL 0x00 /* bus control */ +#define DC_TXSTART 0x08 /* tx start demand */ +#define DC_RXSTART 0x10 /* rx start demand */ +#define DC_RXADDR 0x18 /* rx descriptor list start addr */ +#define DC_TXADDR 0x20 /* tx descriptor list start addr */ +#define DC_ISR 0x28 /* interrupt status register */ +#define DC_NETCFG 0x30 /* network config register */ +#define DC_IMR 0x38 /* interrupt mask */ +#define DC_FRAMESDISCARDED 0x40 /* # of discarded frames */ +#define DC_SIO 0x48 /* MII and ROM/EEPROM access */ +#define DC_ROM 0x50 /* ROM programming address */ +#define DC_TIMER 0x58 /* general timer */ +#define DC_10BTSTAT 0x60 /* SIA status */ +#define DC_SIARESET 0x68 /* SIA connectivity */ +#define DC_10BTCTRL 0x70 /* SIA transmit and receive */ +#define DC_WATCHDOG 0x78 /* SIA and general purpose port */ +#define DC_SIAGP 0x78 /* SIA and general purpose port (X3201) */ + +/* + * There are two general 'types' of MX chips that we need to be + * concerned with. One is the original 98713, which has its internal + * NWAY support controlled via the MDIO bits in the serial I/O + * register. The other is everything else (from the 98713A on up), + * which has its internal NWAY controlled via CSR13, CSR14 and CSR15, + * just like the 21143. This type setting also governs which of the + * 'magic' numbers we write to CSR16. The PNIC II falls into the + * 98713A/98715/98715A/98725 category. + */ +#define DC_TYPE_98713 0x1 +#define DC_TYPE_98713A 0x2 +#define DC_TYPE_987x5 0x3 + +/* Other type of supported chips. */ +#define DC_TYPE_21143 0x4 /* Intel 21143 */ +#define DC_TYPE_ASIX 0x5 /* ASIX AX88140A/AX88141 */ +#define DC_TYPE_AL981 0x6 /* ADMtek AL981 Comet */ +#define DC_TYPE_AN985 0x7 /* ADMtek AN985 Centaur */ +#define DC_TYPE_DM9102 0x8 /* Davicom DM9102 */ +#define DC_TYPE_PNICII 0x9 /* 82c115 PNIC II */ +#define DC_TYPE_PNIC 0xA /* 82c168/82c169 PNIC I */ +#define DC_TYPE_XIRCOM 0xB /* Xircom X3201 */ +#define DC_TYPE_CONEXANT 0xC /* Conexant LANfinity RS7112 */ + +#define DC_IS_MACRONIX(x) \ + (x->dc_type == DC_TYPE_98713 || \ + x->dc_type == DC_TYPE_98713A || \ + x->dc_type == DC_TYPE_987x5) + +#define DC_IS_ADMTEK(x) \ + (x->dc_type == DC_TYPE_AL981 || \ + x->dc_type == DC_TYPE_AN985) + +#define DC_IS_INTEL(x) (x->dc_type == DC_TYPE_21143) +#define DC_IS_ASIX(x) (x->dc_type == DC_TYPE_ASIX) +#define DC_IS_COMET(x) (x->dc_type == DC_TYPE_AL981) +#define DC_IS_CENTAUR(x) (x->dc_type == DC_TYPE_AN985) +#define DC_IS_DAVICOM(x) (x->dc_type == DC_TYPE_DM9102) +#define DC_IS_PNICII(x) (x->dc_type == DC_TYPE_PNICII) +#define DC_IS_PNIC(x) (x->dc_type == DC_TYPE_PNIC) +#define DC_IS_XIRCOM(x) (x->dc_type == DC_TYPE_XIRCOM) +#define DC_IS_CONEXANT(x) (x->dc_type == DC_TYPE_CONEXANT) + +/* MII/symbol mode port types */ +#define DC_PMODE_MII 0x1 +#define DC_PMODE_SYM 0x2 +#define DC_PMODE_SIA 0x3 + +/* + * Bus control bits. + */ +#define DC_BUSCTL_RESET 0x00000001 +#define DC_BUSCTL_ARBITRATION 0x00000002 +#define DC_BUSCTL_SKIPLEN 0x0000007C +#define DC_BUSCTL_BUF_BIGENDIAN 0x00000080 +#define DC_BUSCTL_BURSTLEN 0x00003F00 +#define DC_BUSCTL_CACHEALIGN 0x0000C000 +#define DC_BUSCTL_TXPOLL 0x000E0000 +#define DC_BUSCTL_DBO 0x00100000 +#define DC_BUSCTL_MRME 0x00200000 +#define DC_BUSCTL_MRLE 0x00800000 +#define DC_BUSCTL_MWIE 0x01000000 +#define DC_BUSCTL_ONNOW_ENB 0x04000000 + +#define DC_SKIPLEN_1LONG 0x00000004 +#define DC_SKIPLEN_2LONG 0x00000008 +#define DC_SKIPLEN_3LONG 0x00000010 +#define DC_SKIPLEN_4LONG 0x00000020 +#define DC_SKIPLEN_5LONG 0x00000040 + +#define DC_CACHEALIGN_NONE 0x00000000 +#define DC_CACHEALIGN_8LONG 0x00004000 +#define DC_CACHEALIGN_16LONG 0x00008000 +#define DC_CACHEALIGN_32LONG 0x0000C000 + +#define DC_BURSTLEN_USECA 0x00000000 +#define DC_BURSTLEN_1LONG 0x00000100 +#define DC_BURSTLEN_2LONG 0x00000200 +#define DC_BURSTLEN_4LONG 0x00000400 +#define DC_BURSTLEN_8LONG 0x00000800 +#define DC_BURSTLEN_16LONG 0x00001000 +#define DC_BURSTLEN_32LONG 0x00002000 + +#define DC_TXPOLL_OFF 0x00000000 +#define DC_TXPOLL_1 0x00020000 +#define DC_TXPOLL_2 0x00040000 +#define DC_TXPOLL_3 0x00060000 +#define DC_TXPOLL_4 0x00080000 +#define DC_TXPOLL_5 0x000A0000 +#define DC_TXPOLL_6 0x000C0000 +#define DC_TXPOLL_7 0x000E0000 + +/* + * Interrupt status bits. + */ +#define DC_ISR_TX_OK 0x00000001 +#define DC_ISR_TX_IDLE 0x00000002 +#define DC_ISR_TX_NOBUF 0x00000004 +#define DC_ISR_TX_JABBERTIMEO 0x00000008 +#define DC_ISR_LINKGOOD 0x00000010 +#define DC_ISR_TX_UNDERRUN 0x00000020 +#define DC_ISR_RX_OK 0x00000040 +#define DC_ISR_RX_NOBUF 0x00000080 +#define DC_ISR_RX_READ 0x00000100 +#define DC_ISR_RX_WATDOGTIMEO 0x00000200 +#define DC_ISR_TX_EARLY 0x00000400 +#define DC_ISR_TIMER_EXPIRED 0x00000800 +#define DC_ISR_LINKFAIL 0x00001000 +#define DC_ISR_BUS_ERR 0x00002000 +#define DC_ISR_RX_EARLY 0x00004000 +#define DC_ISR_ABNORMAL 0x00008000 +#define DC_ISR_NORMAL 0x00010000 +#define DC_ISR_RX_STATE 0x000E0000 +#define DC_ISR_TX_STATE 0x00700000 +#define DC_ISR_BUSERRTYPE 0x03800000 +#define DC_ISR_100MBPSLINK 0x08000000 +#define DC_ISR_MAGICKPACK 0x10000000 + +#define DC_RXSTATE_STOPPED 0x00000000 /* 000 - Stopped */ +#define DC_RXSTATE_FETCH 0x00020000 /* 001 - Fetching descriptor */ +#define DC_RXSTATE_ENDCHECK 0x00040000 /* 010 - check for rx end */ +#define DC_RXSTATE_WAIT 0x00060000 /* 011 - waiting for packet */ +#define DC_RXSTATE_SUSPEND 0x00080000 /* 100 - suspend rx */ +#define DC_RXSTATE_CLOSE 0x000A0000 /* 101 - close tx desc */ +#define DC_RXSTATE_FLUSH 0x000C0000 /* 110 - flush from FIFO */ +#define DC_RXSTATE_DEQUEUE 0x000E0000 /* 111 - dequeue from FIFO */ + +#define DC_TXSTATE_RESET 0x00000000 /* 000 - reset */ +#define DC_TXSTATE_FETCH 0x00100000 /* 001 - fetching descriptor */ +#define DC_TXSTATE_WAITEND 0x00200000 /* 010 - wait for tx end */ +#define DC_TXSTATE_READING 0x00300000 /* 011 - read and enqueue */ +#define DC_TXSTATE_RSVD 0x00400000 /* 100 - reserved */ +#define DC_TXSTATE_SETUP 0x00500000 /* 101 - setup packet */ +#define DC_TXSTATE_SUSPEND 0x00600000 /* 110 - suspend tx */ +#define DC_TXSTATE_CLOSE 0x00700000 /* 111 - close tx desc */ + +/* + * Network config bits. + */ +#define DC_NETCFG_RX_HASHPERF 0x00000001 +#define DC_NETCFG_RX_ON 0x00000002 +#define DC_NETCFG_RX_HASHONLY 0x00000004 +#define DC_NETCFG_RX_BADFRAMES 0x00000008 +#define DC_NETCFG_RX_INVFILT 0x00000010 +#define DC_NETCFG_BACKOFFCNT 0x00000020 +#define DC_NETCFG_RX_PROMISC 0x00000040 +#define DC_NETCFG_RX_ALLMULTI 0x00000080 +#define DC_NETCFG_FULLDUPLEX 0x00000200 +#define DC_NETCFG_LOOPBACK 0x00000C00 +#define DC_NETCFG_FORCECOLL 0x00001000 +#define DC_NETCFG_TX_ON 0x00002000 +#define DC_NETCFG_TX_THRESH 0x0000C000 +#define DC_NETCFG_TX_BACKOFF 0x00020000 +#define DC_NETCFG_PORTSEL 0x00040000 /* 0 == 10, 1 == 100 */ +#define DC_NETCFG_HEARTBEAT 0x00080000 +#define DC_NETCFG_STORENFWD 0x00200000 +#define DC_NETCFG_SPEEDSEL 0x00400000 /* 1 == 10, 0 == 100 */ +#define DC_NETCFG_PCS 0x00800000 +#define DC_NETCFG_SCRAMBLER 0x01000000 +#define DC_NETCFG_NO_RXCRC 0x02000000 +#define DC_NETCFG_RX_ALL 0x40000000 +#define DC_NETCFG_CAPEFFECT 0x80000000 + +#define DC_OPMODE_NORM 0x00000000 +#define DC_OPMODE_INTLOOP 0x00000400 +#define DC_OPMODE_EXTLOOP 0x00000800 + +#if 0 +#define DC_TXTHRESH_72BYTES 0x00000000 +#define DC_TXTHRESH_96BYTES 0x00004000 +#define DC_TXTHRESH_128BYTES 0x00008000 +#define DC_TXTHRESH_160BYTES 0x0000C000 +#endif + +#define DC_TXTHRESH_MIN 0x00000000 +#define DC_TXTHRESH_INC 0x00004000 +#define DC_TXTHRESH_MAX 0x0000C000 + + +/* + * Interrupt mask bits. + */ +#define DC_IMR_TX_OK 0x00000001 +#define DC_IMR_TX_IDLE 0x00000002 +#define DC_IMR_TX_NOBUF 0x00000004 +#define DC_IMR_TX_JABBERTIMEO 0x00000008 +#define DC_IMR_LINKGOOD 0x00000010 +#define DC_IMR_TX_UNDERRUN 0x00000020 +#define DC_IMR_RX_OK 0x00000040 +#define DC_IMR_RX_NOBUF 0x00000080 +#define DC_IMR_RX_READ 0x00000100 +#define DC_IMR_RX_WATDOGTIMEO 0x00000200 +#define DC_IMR_TX_EARLY 0x00000400 +#define DC_IMR_TIMER_EXPIRED 0x00000800 +#define DC_IMR_LINKFAIL 0x00001000 +#define DC_IMR_BUS_ERR 0x00002000 +#define DC_IMR_RX_EARLY 0x00004000 +#define DC_IMR_ABNORMAL 0x00008000 +#define DC_IMR_NORMAL 0x00010000 +#define DC_IMR_100MBPSLINK 0x08000000 +#define DC_IMR_MAGICKPACK 0x10000000 + +#define DC_INTRS \ + (DC_IMR_RX_OK|DC_IMR_TX_OK|DC_IMR_RX_NOBUF|DC_IMR_RX_WATDOGTIMEO|\ + DC_IMR_TX_NOBUF|DC_IMR_TX_UNDERRUN|DC_IMR_BUS_ERR| \ + DC_IMR_ABNORMAL|DC_IMR_NORMAL/*|DC_IMR_TX_EARLY*/) +/* + * Serial I/O (EEPROM/ROM) bits. + */ +#define DC_SIO_EE_CS 0x00000001 /* EEPROM chip select */ +#define DC_SIO_EE_CLK 0x00000002 /* EEPROM clock */ +#define DC_SIO_EE_DATAIN 0x00000004 /* EEPROM data output */ +#define DC_SIO_EE_DATAOUT 0x00000008 /* EEPROM data input */ +#define DC_SIO_ROMDATA4 0x00000010 +#define DC_SIO_ROMDATA5 0x00000020 +#define DC_SIO_ROMDATA6 0x00000040 +#define DC_SIO_ROMDATA7 0x00000080 +#define DC_SIO_EESEL 0x00000800 +#define DC_SIO_ROMSEL 0x00001000 +#define DC_SIO_ROMCTL_WRITE 0x00002000 +#define DC_SIO_ROMCTL_READ 0x00004000 +#define DC_SIO_MII_CLK 0x00010000 /* MDIO clock */ +#define DC_SIO_MII_DATAOUT 0x00020000 /* MDIO data out */ +#define DC_SIO_MII_DIR 0x00040000 /* MDIO dir */ +#define DC_SIO_MII_DATAIN 0x00080000 /* MDIO data in */ + +#define DC_EECMD_WRITE 0x140 +#define DC_EECMD_READ 0x180 +#define DC_EECMD_ERASE 0x1c0 + +#define DC_EE_NODEADDR_OFFSET 0x70 +#define DC_EE_NODEADDR 10 + +/* + * General purpose timer register + */ +#define DC_TIMER_VALUE 0x0000FFFF +#define DC_TIMER_CONTINUOUS 0x00010000 + +/* + * 10baseT status register + */ +#define DC_TSTAT_MIIACT 0x00000001 /* MII port activity */ +#define DC_TSTAT_LS100 0x00000002 /* link status of 100baseTX */ +#define DC_TSTAT_LS10 0x00000004 /* link status of 10baseT */ +#define DC_TSTAT_AUTOPOLARITY 0x00000008 +#define DC_TSTAT_AUIACT 0x00000100 /* AUI activity */ +#define DC_TSTAT_10BTACT 0x00000200 /* 10baseT activity */ +#define DC_TSTAT_NSN 0x00000400 /* non-stable FLPs detected */ +#define DC_TSTAT_REMFAULT 0x00000800 +#define DC_TSTAT_ANEGSTAT 0x00007000 +#define DC_TSTAT_LP_CAN_NWAY 0x00008000 /* link partner supports NWAY */ +#define DC_TSTAT_LPCODEWORD 0xFFFF0000 /* link partner's code word */ + +#define DC_ASTAT_DISABLE 0x00000000 +#define DC_ASTAT_TXDISABLE 0x00001000 +#define DC_ASTAT_ABDETECT 0x00002000 +#define DC_ASTAT_ACKDETECT 0x00003000 +#define DC_ASTAT_CMPACKDETECT 0x00004000 +#define DC_ASTAT_AUTONEGCMP 0x00005000 +#define DC_ASTAT_LINKCHECK 0x00006000 + +/* + * PHY reset register + */ +#define DC_SIA_RESET 0x00000001 +#define DC_SIA_AUI 0x00000008 /* AUI or 10baseT */ + +/* + * 10baseT control register + */ +#define DC_TCTL_ENCODER_ENB 0x00000001 +#define DC_TCTL_LOOPBACK 0x00000002 +#define DC_TCTL_DRIVER_ENB 0x00000004 +#define DC_TCTL_LNKPULSE_ENB 0x00000008 +#define DC_TCTL_HALFDUPLEX 0x00000040 +#define DC_TCTL_AUTONEGENBL 0x00000080 +#define DC_TCTL_RX_SQUELCH 0x00000100 +#define DC_TCTL_COLL_SQUELCH 0x00000200 +#define DC_TCTL_COLL_DETECT 0x00000400 +#define DC_TCTL_SQE_ENB 0x00000800 +#define DC_TCTL_LINKTEST 0x00001000 +#define DC_TCTL_AUTOPOLARITY 0x00002000 +#define DC_TCTL_SET_POL_PLUS 0x00004000 +#define DC_TCTL_AUTOSENSE 0x00008000 /* 10bt/AUI autosense */ +#define DC_TCTL_100BTXHALF 0x00010000 +#define DC_TCTL_100BTXFULL 0x00020000 +#define DC_TCTL_100BT4 0x00040000 + +/* + * Watchdog timer register + */ +#define DC_WDOG_JABBERDIS 0x00000001 +#define DC_WDOG_HOSTUNJAB 0x00000002 +#define DC_WDOG_JABBERCLK 0x00000004 +#define DC_WDOG_RXWDOGDIS 0x00000010 +#define DC_WDOG_RXWDOGCLK 0x00000020 +#define DC_WDOG_MUSTBEZERO 0x00000100 +#define DC_WDOG_AUIBNC 0x00100000 +#define DC_WDOG_ACTIVITY 0x00200000 +#define DC_WDOG_RX_MATCH 0x00400000 +#define DC_WDOG_LINK 0x00800000 +#define DC_WDOG_CTLWREN 0x08000000 + +/* + * SIA and General Purpose Port register (X3201) + */ +#define DC_SIAGP_RXMATCH 0x40000000 +#define DC_SIAGP_INT1 0x20000000 +#define DC_SIAGP_INT0 0x10000000 +#define DC_SIAGP_WRITE_EN 0x08000000 +#define DC_SIAGP_RXMATCH_EN 0x04000000 +#define DC_SIAGP_INT1_EN 0x02000000 +#define DC_SIAGP_INT0_EN 0x01000000 +#define DC_SIAGP_LED3 0x00800000 +#define DC_SIAGP_LED2 0x00400000 +#define DC_SIAGP_LED1 0x00200000 +#define DC_SIAGP_LED0 0x00100000 +#define DC_SIAGP_MD_GP3_OUTPUT 0x00080000 +#define DC_SIAGP_MD_GP2_OUTPUT 0x00040000 +#define DC_SIAGP_MD_GP1_OUTPUT 0x00020000 +#define DC_SIAGP_MD_GP0_OUTPUT 0x00010000 + +/* + * Size of a setup frame. + */ +#define DC_SFRAME_LEN 192 + +/* + * 21x4x TX/RX list structure. + */ + +struct dc_desc { + u_int32_t dc_status; + u_int32_t dc_ctl; + u_int32_t dc_ptr1; + u_int32_t dc_ptr2; +}; + +#define dc_data dc_ptr1 +#define dc_next dc_ptr2 + +#define DC_RXSTAT_FIFOOFLOW 0x00000001 +#define DC_RXSTAT_CRCERR 0x00000002 +#define DC_RXSTAT_DRIBBLE 0x00000004 +#define DC_RXSTAT_MIIERE 0x00000008 +#define DC_RXSTAT_WATCHDOG 0x00000010 +#define DC_RXSTAT_FRAMETYPE 0x00000020 /* 0 == IEEE 802.3 */ +#define DC_RXSTAT_COLLSEEN 0x00000040 +#define DC_RXSTAT_GIANT 0x00000080 +#define DC_RXSTAT_LASTFRAG 0x00000100 +#define DC_RXSTAT_FIRSTFRAG 0x00000200 +#define DC_RXSTAT_MULTICAST 0x00000400 +#define DC_RXSTAT_RUNT 0x00000800 +#define DC_RXSTAT_RXTYPE 0x00003000 +#define DC_RXSTAT_DE 0x00004000 +#define DC_RXSTAT_RXERR 0x00008000 +#define DC_RXSTAT_RXLEN 0x3FFF0000 +#define DC_RXSTAT_OWN 0x80000000 + +#define DC_RXBYTES(x) ((x & DC_RXSTAT_RXLEN) >> 16) +#define DC_RXSTAT (DC_RXSTAT_FIRSTFRAG|DC_RXSTAT_LASTFRAG|DC_RXSTAT_OWN) + +#define DC_RXCTL_BUFLEN1 0x00000FFF +#define DC_RXCTL_BUFLEN2 0x00FFF000 +#define DC_RXCTL_RLINK 0x01000000 +#define DC_RXCTL_RLAST 0x02000000 + +#define DC_TXSTAT_DEFER 0x00000001 +#define DC_TXSTAT_UNDERRUN 0x00000002 +#define DC_TXSTAT_LINKFAIL 0x00000003 +#define DC_TXSTAT_COLLCNT 0x00000078 +#define DC_TXSTAT_SQE 0x00000080 +#define DC_TXSTAT_EXCESSCOLL 0x00000100 +#define DC_TXSTAT_LATECOLL 0x00000200 +#define DC_TXSTAT_NOCARRIER 0x00000400 +#define DC_TXSTAT_CARRLOST 0x00000800 +#define DC_TXSTAT_JABTIMEO 0x00004000 +#define DC_TXSTAT_ERRSUM 0x00008000 +#define DC_TXSTAT_OWN 0x80000000 + +#define DC_TXCTL_BUFLEN1 0x000007FF +#define DC_TXCTL_BUFLEN2 0x003FF800 +#define DC_TXCTL_FILTTYPE0 0x00400000 +#define DC_TXCTL_PAD 0x00800000 +#define DC_TXCTL_TLINK 0x01000000 +#define DC_TXCTL_TLAST 0x02000000 +#define DC_TXCTL_NOCRC 0x04000000 +#define DC_TXCTL_SETUP 0x08000000 +#define DC_TXCTL_FILTTYPE1 0x10000000 +#define DC_TXCTL_FIRSTFRAG 0x20000000 +#define DC_TXCTL_LASTFRAG 0x40000000 +#define DC_TXCTL_FINT 0x80000000 + +#define DC_FILTER_PERFECT 0x00000000 +#define DC_FILTER_HASHPERF 0x00400000 +#define DC_FILTER_INVERSE 0x10000000 +#define DC_FILTER_HASHONLY 0x10400000 + +#define DC_MAXFRAGS 16 +#ifdef DEVICE_POLLING +#define DC_RX_LIST_CNT 192 +#else +#define DC_RX_LIST_CNT 64 +#endif +#define DC_TX_LIST_CNT 256 +#define DC_MIN_FRAMELEN 60 +#define DC_RXLEN 1536 + +#define DC_INC(x, y) (x) = (x + 1) % y + +struct dc_list_data { + struct dc_desc dc_rx_list[DC_RX_LIST_CNT]; + struct dc_desc dc_tx_list[DC_TX_LIST_CNT]; +}; + +struct dc_chain_data { + struct mbuf *dc_rx_chain[DC_RX_LIST_CNT]; + struct mbuf *dc_tx_chain[DC_TX_LIST_CNT]; + u_int32_t dc_sbuf[DC_SFRAME_LEN/sizeof(u_int32_t)]; + u_int8_t dc_pad[DC_MIN_FRAMELEN]; + int dc_tx_prod; + int dc_tx_cons; + int dc_tx_cnt; + int dc_rx_prod; +}; + +struct dc_mediainfo { + int dc_media; + u_int8_t *dc_gp_ptr; + u_int8_t dc_gp_len; + u_int8_t *dc_reset_ptr; + u_int8_t dc_reset_len; + struct dc_mediainfo *dc_next; +}; + + +struct dc_type { + u_int16_t dc_vid; + u_int16_t dc_did; + char *dc_name; +}; + +struct dc_mii_frame { + u_int8_t mii_stdelim; + u_int8_t mii_opcode; + u_int8_t mii_phyaddr; + u_int8_t mii_regaddr; + u_int8_t mii_turnaround; + u_int16_t mii_data; +}; + +/* + * MII constants + */ +#define DC_MII_STARTDELIM 0x01 +#define DC_MII_READOP 0x02 +#define DC_MII_WRITEOP 0x01 +#define DC_MII_TURNAROUND 0x02 + + +/* + * Registers specific to clone devices. + * This mainly relates to RX filter programming: not all 21x4x clones + * use the standard DEC filter programming mechanism. + */ + +/* + * ADMtek specific registers and constants for the AL981 and AN985. + * The AN985 doesn't use the magic PHY registers. + */ +#define DC_AL_CR 0x88 /* command register */ +#define DC_AL_PAR0 0xA4 /* station address */ +#define DC_AL_PAR1 0xA8 /* station address */ +#define DC_AL_MAR0 0xAC /* multicast hash filter */ +#define DC_AL_MAR1 0xB0 /* multicast hash filter */ +#define DC_AL_BMCR 0xB4 /* built in PHY control */ +#define DC_AL_BMSR 0xB8 /* built in PHY status */ +#define DC_AL_VENID 0xBC /* built in PHY ID0 */ +#define DC_AL_DEVID 0xC0 /* built in PHY ID1 */ +#define DC_AL_ANAR 0xC4 /* built in PHY autoneg advert */ +#define DC_AL_LPAR 0xC8 /* bnilt in PHY link part. ability */ +#define DC_AL_ANER 0xCC /* built in PHY autoneg expansion */ + +#define DC_AL_CR_ATUR 0x00000001 /* automatic TX underrun recovery */ +#define DC_ADMTEK_PHYADDR 0x1 +#define DC_AL_EE_NODEADDR 4 +/* End of ADMtek specific registers */ + +/* + * ASIX specific registers. + */ +#define DC_AX_FILTIDX 0x68 /* RX filter index */ +#define DC_AX_FILTDATA 0x70 /* RX filter data */ + +/* + * Special ASIX-specific bits in the ASIX NETCFG register (CSR6). + */ +#define DC_AX_NETCFG_RX_BROAD 0x00000100 + +/* + * RX Filter Index Register values + */ +#define DC_AX_FILTIDX_PAR0 0x00000000 +#define DC_AX_FILTIDX_PAR1 0x00000001 +#define DC_AX_FILTIDX_MAR0 0x00000002 +#define DC_AX_FILTIDX_MAR1 0x00000003 +/* End of ASIX specific registers */ + +/* + * Macronix specific registers. The Macronix chips have a special + * register for reading the NWAY status, which we don't use, plus + * a magic packet register, which we need to tweak a bit per the + * Macronix application notes. + */ +#define DC_MX_MAGICPACKET 0x80 +#define DC_MX_NWAYSTAT 0xA0 + +/* + * Magic packet register + */ +#define DC_MX_MPACK_DISABLE 0x00400000 + +/* + * NWAY status register. + */ +#define DC_MX_NWAY_10BTHALF 0x08000000 +#define DC_MX_NWAY_10BTFULL 0x10000000 +#define DC_MX_NWAY_100BTHALF 0x20000000 +#define DC_MX_NWAY_100BTFULL 0x40000000 +#define DC_MX_NWAY_100BT4 0x80000000 + +/* + * These are magic values that must be written into CSR16 + * (DC_MX_MAGICPACKET) in order to put the chip into proper + * operating mode. The magic numbers are documented in the + * Macronix 98715 application notes. + */ +#define DC_MX_MAGIC_98713 0x0F370000 +#define DC_MX_MAGIC_98713A 0x0B3C0000 +#define DC_MX_MAGIC_98715 0x0B3C0000 +#define DC_MX_MAGIC_98725 0x0B3C0000 +/* End of Macronix specific registers */ + +/* + * PNIC 82c168/82c169 specific registers. + * The PNIC has its own special NWAY support, which doesn't work, + * and shortcut ways of reading the EEPROM and MII bus. + */ +#define DC_PN_GPIO 0x60 /* general purpose pins control */ +#define DC_PN_PWRUP_CFG 0x90 /* config register, set by EEPROM */ +#define DC_PN_SIOCTL 0x98 /* serial EEPROM control register */ +#define DC_PN_MII 0xA0 /* MII access register */ +#define DC_PN_NWAY 0xB8 /* Internal NWAY register */ + +/* Serial I/O EEPROM register */ +#define DC_PN_SIOCTL_DATA 0x0000003F +#define DC_PN_SIOCTL_OPCODE 0x00000300 +#define DC_PN_SIOCTL_BUSY 0x80000000 + +#define DC_PN_EEOPCODE_ERASE 0x00000300 +#define DC_PN_EEOPCODE_READ 0x00000600 +#define DC_PN_EEOPCODE_WRITE 0x00000100 + +/* + * The first two general purpose pins control speed selection and + * 100Mbps loopback on the 82c168 chip. The control bits should always + * be set (to make the data pins outputs) and the speed selction and + * loopback bits set accordingly when changing media. Physically, this + * will set the state of a relay mounted on the card. + */ +#define DC_PN_GPIO_DATA0 0x000000001 +#define DC_PN_GPIO_DATA1 0x000000002 +#define DC_PN_GPIO_DATA2 0x000000004 +#define DC_PN_GPIO_DATA3 0x000000008 +#define DC_PN_GPIO_CTL0 0x000000010 +#define DC_PN_GPIO_CTL1 0x000000020 +#define DC_PN_GPIO_CTL2 0x000000040 +#define DC_PN_GPIO_CTL3 0x000000080 +#define DC_PN_GPIO_SPEEDSEL DC_PN_GPIO_DATA0/* 1 == 100Mbps, 0 == 10Mbps */ +#define DC_PN_GPIO_100TX_LOOP DC_PN_GPIO_DATA1/* 1 == normal, 0 == loop */ +#define DC_PN_GPIO_BNC_ENB DC_PN_GPIO_DATA2 +#define DC_PN_GPIO_100TX_LNK DC_PN_GPIO_DATA3 +#define DC_PN_GPIO_SETBIT(sc, r) \ + DC_SETBIT(sc, DC_PN_GPIO, ((r) | (r << 4))) +#define DC_PN_GPIO_CLRBIT(sc, r) \ + { \ + DC_SETBIT(sc, DC_PN_GPIO, ((r) << 4)); \ + DC_CLRBIT(sc, DC_PN_GPIO, (r)); \ + } + +/* shortcut MII access register */ +#define DC_PN_MII_DATA 0x0000FFFF +#define DC_PN_MII_RESERVER 0x00020000 +#define DC_PN_MII_REGADDR 0x007C0000 +#define DC_PN_MII_PHYADDR 0x0F800000 +#define DC_PN_MII_OPCODE 0x30000000 +#define DC_PN_MII_BUSY 0x80000000 + +#define DC_PN_MIIOPCODE_READ 0x60020000 +#define DC_PN_MIIOPCODE_WRITE 0x50020000 + +/* Internal NWAY bits */ +#define DC_PN_NWAY_RESET 0x00000001 /* reset */ +#define DC_PN_NWAY_PDOWN 0x00000002 /* power down */ +#define DC_PN_NWAY_BYPASS 0x00000004 /* bypass */ +#define DC_PN_NWAY_AUILOWCUR 0x00000008 /* AUI low current */ +#define DC_PN_NWAY_TPEXTEND 0x00000010 /* low squelch voltage */ +#define DC_PN_NWAY_POLARITY 0x00000020 /* 0 == on, 1 == off */ +#define DC_PN_NWAY_TP 0x00000040 /* 1 == tp, 0 == AUI */ +#define DC_PN_NWAY_AUIVOLT 0x00000080 /* 1 == full, 0 == half */ +#define DC_PN_NWAY_DUPLEX 0x00000100 /* LED, 1 == full, 0 == half */ +#define DC_PN_NWAY_LINKTEST 0x00000200 /* 0 == on, 1 == off */ +#define DC_PN_NWAY_AUTODETECT 0x00000400 /* 1 == off, 0 == on */ +#define DC_PN_NWAY_SPEEDSEL 0x00000800 /* LED, 0 = 10, 1 == 100 */ +#define DC_PN_NWAY_NWAY_ENB 0x00001000 /* 0 == off, 1 == on */ +#define DC_PN_NWAY_CAP10HDX 0x00002000 +#define DC_PN_NWAY_CAP10FDX 0x00004000 +#define DC_PN_NWAY_CAP100FDX 0x00008000 +#define DC_PN_NWAY_CAP100HDX 0x00010000 +#define DC_PN_NWAY_CAP100T4 0x00020000 +#define DC_PN_NWAY_ANEGRESTART 0x02000000 /* resets when aneg done */ +#define DC_PN_NWAY_REMFAULT 0x04000000 +#define DC_PN_NWAY_LPAR10HDX 0x08000000 +#define DC_PN_NWAY_LPAR10FDX 0x10000000 +#define DC_PN_NWAY_LPAR100FDX 0x20000000 +#define DC_PN_NWAY_LPAR100HDX 0x40000000 +#define DC_PN_NWAY_LPAR100T4 0x80000000 + +/* End of PNIC specific registers */ + +/* + * CONEXANT specific registers. + */ + +#define DC_CONEXANT_PHYADDR 0x1 +#define DC_CONEXANT_EE_NODEADDR 0x19A + +/* End of CONEXANT specific registers */ + + +struct dc_softc { + struct arpcom arpcom; /* interface info */ + bus_space_handle_t dc_bhandle; /* bus space handle */ + bus_space_tag_t dc_btag; /* bus space tag */ + void *dc_intrhand; + struct resource *dc_irq; + struct resource *dc_res; + struct dc_type *dc_info; /* adapter info */ + device_t dc_miibus; + u_int8_t dc_unit; /* interface number */ + u_int8_t dc_type; + u_int8_t dc_pmode; + u_int8_t dc_link; + u_int8_t dc_cachesize; + int dc_romwidth; + int dc_pnic_rx_bug_save; + unsigned char *dc_pnic_rx_buf; + int dc_if_flags; + int dc_if_media; + u_int32_t dc_flags; + u_int32_t dc_txthresh; + u_int8_t *dc_srom; + struct dc_mediainfo *dc_mi; + struct dc_list_data *dc_ldata; + struct dc_chain_data dc_cdata; + struct callout dc_stat_ch; +#ifdef SRM_MEDIA + int dc_srm_media; +#endif + struct mtx dc_mtx; +#ifdef DEVICE_POLLING + int rxcycles; /* ... when polling */ +#endif + int suspended; /* 0 = normal 1 = suspended */ + + u_int32_t saved_maps[5]; /* pci data */ + u_int32_t saved_biosaddr; + u_int8_t saved_intline; + u_int8_t saved_cachelnsz; + u_int8_t saved_lattimer; +}; + + +#define DC_LOCK(_sc) mtx_lock(&(_sc)->dc_mtx) +#define DC_UNLOCK(_sc) mtx_unlock(&(_sc)->dc_mtx) + +#define DC_TX_POLL 0x00000001 +#define DC_TX_COALESCE 0x00000002 +#define DC_TX_ADMTEK_WAR 0x00000004 +#define DC_TX_USE_TX_INTR 0x00000008 +#define DC_RX_FILTER_TULIP 0x00000010 +#define DC_TX_INTR_FIRSTFRAG 0x00000020 +#define DC_PNIC_RX_BUG_WAR 0x00000040 +#define DC_TX_FIXED_RING 0x00000080 +#define DC_TX_STORENFWD 0x00000100 +#define DC_REDUCED_MII_POLL 0x00000200 +#define DC_TX_INTR_ALWAYS 0x00000400 +#define DC_21143_NWAY 0x00000800 +#define DC_128BIT_HASH 0x00001000 +#define DC_64BIT_HASH 0x00002000 +#define DC_TULIP_LEDS 0x00004000 +#define DC_TX_ONE 0x00008000 +#define DC_TX_ALIGN 0x00010000 /* align mbuf on tx */ + +/* + * register space access macros + */ +#define CSR_WRITE_4(sc, reg, val) \ + bus_space_write_4(sc->dc_btag, sc->dc_bhandle, reg, val) + +#define CSR_READ_4(sc, reg) \ + bus_space_read_4(sc->dc_btag, sc->dc_bhandle, reg) + +#define DC_TIMEOUT 1000 +#define ETHER_ALIGN 2 + +/* + * General constants that are fun to know. + */ + +/* + * DEC PCI vendor ID + */ +#define DC_VENDORID_DEC 0x1011 + +/* + * DEC/Intel 21143 PCI device ID + */ +#define DC_DEVICEID_21143 0x0019 + +/* + * Macronix PCI vendor ID + */ +#define DC_VENDORID_MX 0x10D9 + +/* + * Macronix PMAC device IDs. + */ +#define DC_DEVICEID_98713 0x0512 +#define DC_DEVICEID_987x5 0x0531 +#define DC_DEVICEID_98727 0x0532 +#define DC_DEVICEID_98732 0x0532 + +/* Macronix PCI revision codes. */ +#define DC_REVISION_98713 0x00 +#define DC_REVISION_98713A 0x10 +#define DC_REVISION_98715 0x20 +#define DC_REVISION_98715AEC_C 0x25 +#define DC_REVISION_98725 0x30 + +/* + * Compex PCI vendor ID. + */ +#define DC_VENDORID_CP 0x11F6 + +/* + * Compex PMAC PCI device IDs. + */ +#define DC_DEVICEID_98713_CP 0x9881 + +/* + * Lite-On PNIC PCI vendor ID + */ +#define DC_VENDORID_LO 0x11AD + +/* + * 82c168/82c169 PNIC device IDs. Both chips have the same device + * ID but different revisions. Revision 0x10 is the 82c168, and + * 0x20 is the 82c169. + */ +#define DC_DEVICEID_82C168 0x0002 + +#define DC_REVISION_82C168 0x10 +#define DC_REVISION_82C169 0x20 + +/* + * Lite-On PNIC II device ID. Note: this is actually a Macronix 98715A + * with wake on lan/magic packet support. + */ +#define DC_DEVICEID_82C115 0xc115 + +/* + * Davicom vendor ID. + */ +#define DC_VENDORID_DAVICOM 0x1282 + +/* + * Davicom device IDs. + */ +#define DC_DEVICEID_DM9009 0x9009 +#define DC_DEVICEID_DM9100 0x9100 +#define DC_DEVICEID_DM9102 0x9102 + +/* + * The DM9102A has the same PCI device ID as the DM9102, + * but a higher revision code. + */ +#define DC_REVISION_DM9102 0x10 +#define DC_REVISION_DM9102A 0x30 + +/* + * ADMtek vendor ID. + */ +#define DC_VENDORID_ADMTEK 0x1317 + +/* + * ADMtek device IDs. + */ +#define DC_DEVICEID_AL981 0x0981 +#define DC_DEVICEID_AN985 0x0985 +#define DC_DEVICEID_ADM9511 0x9511 +#define DC_DEVICEID_ADM9513 0x9513 + +/* + * 3COM PCI vendor ID + */ +#define DC_VENDORID_3COM 0x10b7 + +/* + * 3COM OfficeConnect 10/100B (3CSOHO100B-TX) + */ +#define DC_DEVICEID_3CSOHOB 0x9300 + +/* + * ASIX vendor ID. + */ +#define DC_VENDORID_ASIX 0x125B + +/* + * ASIX device IDs. + */ +#define DC_DEVICEID_AX88140A 0x1400 + +/* + * The ASIX AX88140 and ASIX AX88141 have the same vendor and + * device IDs but different revision values. + */ +#define DC_REVISION_88140 0x00 +#define DC_REVISION_88141 0x10 + +/* + * Accton vendor ID. + */ +#define DC_VENDORID_ACCTON 0x1113 + +/* + * Accton device IDs. + */ +#define DC_DEVICEID_EN1217 0x1217 +#define DC_DEVICEID_EN2242 0x1216 + +/* + * Xircom vendor ID + */ +#define DC_VENDORID_XIRCOM 0x115d + +/* + * Xircom device IDs. + */ +#define DC_DEVICEID_X3201 0x0003 + +/* + * Abocom vendor ID + */ +#define DC_VENDORID_ABOCOM 0x13d1 + +/* + * Abocom device IDs. + */ +#define DC_DEVICEID_FE2500 0xAB02 + +/* + * Conexant vendor ID. + */ +#define DC_VENDORID_CONEXANT 0x14f1 + +/* + * Conexant device IDs. + */ +#define DC_DEVICEID_RS7112 0x1803 + +/* + * Planex vendor ID + */ +#define DC_VENDORID_PLANEX 0x14ea + +/* + * Planex device IDs. + */ +#define DC_DEVICEID_FNW3602T 0xab08 + +/* + * Not sure who this vendor should be, so we'll go with HAWKING until + * I can locate the right one. + */ +#define DC_VENDORID_HAWKING 0x17b3 + +/* + * Sure looks like an abocom device ID, but it found on my hawking PN672TX + * card. Use that for now, and upgrade later. + */ +#define DC_DEVICEID_HAWKING_PN672TX 0xab08 + +/* + * PCI low memory base and low I/O base register, and + * other PCI registers. + */ + +#define DC_PCI_CFID 0x00 /* Id */ +#define DC_PCI_CFCS 0x04 /* Command and status */ +#define DC_PCI_CFRV 0x08 /* Revision */ +#define DC_PCI_CFLT 0x0C /* Latency timer */ +#define DC_PCI_CFBIO 0x10 /* Base I/O address */ +#define DC_PCI_CFBMA 0x14 /* Base memory address */ +#define DC_PCI_CCIS 0x28 /* Card info struct */ +#define DC_PCI_CSID 0x2C /* Subsystem ID */ +#define DC_PCI_CBER 0x30 /* Expansion ROM base address */ +#define DC_PCI_CCAP 0x34 /* Caps pointer - PD/TD chip only */ +#define DC_PCI_CFIT 0x3C /* Interrupt */ +#define DC_PCI_CFDD 0x40 /* Device and driver area */ +#define DC_PCI_CWUA0 0x44 /* Wake-Up LAN addr 0 */ +#define DC_PCI_CWUA1 0x48 /* Wake-Up LAN addr 1 */ +#define DC_PCI_SOP0 0x4C /* SecureON passwd 0 */ +#define DC_PCI_SOP1 0x50 /* SecureON passwd 1 */ +#define DC_PCI_CWUC 0x54 /* Configuration Wake-Up cmd */ +#define DC_PCI_CCID 0xDC /* Capability ID - PD/TD only */ +#define DC_PCI_CPMC 0xE0 /* Pwrmgmt ctl & sts - PD/TD only */ + +/* PCI ID register */ +#define DC_CFID_VENDOR 0x0000FFFF +#define DC_CFID_DEVICE 0xFFFF0000 + +/* PCI command/status register */ +#define DC_CFCS_IOSPACE 0x00000001 /* I/O space enable */ +#define DC_CFCS_MEMSPACE 0x00000002 /* memory space enable */ +#define DC_CFCS_BUSMASTER 0x00000004 /* bus master enable */ +#define DC_CFCS_MWI_ENB 0x00000010 /* mem write and inval enable */ +#define DC_CFCS_PARITYERR_ENB 0x00000040 /* parity error enable */ +#define DC_CFCS_SYSERR_ENB 0x00000100 /* system error enable */ +#define DC_CFCS_NEWCAPS 0x00100000 /* new capabilities */ +#define DC_CFCS_FAST_B2B 0x00800000 /* fast back-to-back capable */ +#define DC_CFCS_DATAPARITY 0x01000000 /* Parity error report */ +#define DC_CFCS_DEVSELTIM 0x06000000 /* devsel timing */ +#define DC_CFCS_TGTABRT 0x10000000 /* received target abort */ +#define DC_CFCS_MASTERABRT 0x20000000 /* received master abort */ +#define DC_CFCS_SYSERR 0x40000000 /* asserted system error */ +#define DC_CFCS_PARITYERR 0x80000000 /* asserted parity error */ + +/* PCI revision register */ +#define DC_CFRV_STEPPING 0x0000000F +#define DC_CFRV_REVISION 0x000000F0 +#define DC_CFRV_SUBCLASS 0x00FF0000 +#define DC_CFRV_BASECLASS 0xFF000000 + +#define DC_21143_PB_REV 0x00000030 +#define DC_21143_TB_REV 0x00000030 +#define DC_21143_PC_REV 0x00000030 +#define DC_21143_TC_REV 0x00000030 +#define DC_21143_PD_REV 0x00000041 +#define DC_21143_TD_REV 0x00000041 + +/* PCI latency timer register */ +#define DC_CFLT_CACHELINESIZE 0x000000FF +#define DC_CFLT_LATENCYTIMER 0x0000FF00 + +/* PCI subsystem ID register */ +#define DC_CSID_VENDOR 0x0000FFFF +#define DC_CSID_DEVICE 0xFFFF0000 + +/* PCI cababilities pointer */ +#define DC_CCAP_OFFSET 0x000000FF + +/* PCI interrupt config register */ +#define DC_CFIT_INTLINE 0x000000FF +#define DC_CFIT_INTPIN 0x0000FF00 +#define DC_CFIT_MIN_GNT 0x00FF0000 +#define DC_CFIT_MAX_LAT 0xFF000000 + +/* PCI capability register */ +#define DC_CCID_CAPID 0x000000FF +#define DC_CCID_NEXTPTR 0x0000FF00 +#define DC_CCID_PM_VERS 0x00070000 +#define DC_CCID_PME_CLK 0x00080000 +#define DC_CCID_DVSPEC_INT 0x00200000 +#define DC_CCID_STATE_D1 0x02000000 +#define DC_CCID_STATE_D2 0x04000000 +#define DC_CCID_PME_D0 0x08000000 +#define DC_CCID_PME_D1 0x10000000 +#define DC_CCID_PME_D2 0x20000000 +#define DC_CCID_PME_D3HOT 0x40000000 +#define DC_CCID_PME_D3COLD 0x80000000 + +/* PCI power management control/status register */ +#define DC_CPMC_STATE 0x00000003 +#define DC_CPMC_PME_ENB 0x00000100 +#define DC_CPMC_PME_STS 0x00008000 + +#define DC_PSTATE_D0 0x0 +#define DC_PSTATE_D1 0x1 +#define DC_PSTATE_D2 0x2 +#define DC_PSTATE_D3 0x3 + +/* Device specific region */ +/* Configuration and driver area */ +#define DC_CFDD_DRVUSE 0x0000FFFF +#define DC_CFDD_SNOOZE_MODE 0x40000000 +#define DC_CFDD_SLEEP_MODE 0x80000000 + +/* Configuration wake-up command register */ +#define DC_CWUC_MUST_BE_ZERO 0x00000001 +#define DC_CWUC_SECUREON_ENB 0x00000002 +#define DC_CWUC_FORCE_WUL 0x00000004 +#define DC_CWUC_BNC_ABILITY 0x00000008 +#define DC_CWUC_AUI_ABILITY 0x00000010 +#define DC_CWUC_TP10_ABILITY 0x00000020 +#define DC_CWUC_MII_ABILITY 0x00000040 +#define DC_CWUC_SYM_ABILITY 0x00000080 +#define DC_CWUC_LOCK 0x00000100 + +/* + * SROM nonsense. + */ + +#define DC_IB_CTLRCNT 0x13 +#define DC_IB_LEAF0_CNUM 0x1A +#define DC_IB_LEAF0_OFFSET 0x1B + +struct dc_info_leaf { + u_int16_t dc_conntype; + u_int8_t dc_blkcnt; + u_int8_t dc_rsvd; + u_int16_t dc_infoblk; +}; + +#define DC_CTYPE_10BT 0x0000 +#define DC_CTYPE_10BT_NWAY 0x0100 +#define DC_CTYPE_10BT_FDX 0x0204 +#define DC_CTYPE_10B2 0x0001 +#define DC_CTYPE_10B5 0x0002 +#define DC_CTYPE_100BT 0x0003 +#define DC_CTYPE_100BT_FDX 0x0205 +#define DC_CTYPE_100T4 0x0006 +#define DC_CTYPE_100FX 0x0007 +#define DC_CTYPE_100FX_FDX 0x0208 +#define DC_CTYPE_MII_10BT 0x0009 +#define DC_CTYPE_MII_10BT_FDX 0x020A +#define DC_CTYPE_MII_100BT 0x000D +#define DC_CTYPE_MII_100BT_FDX 0x020E +#define DC_CTYPE_MII_100T4 0x000F +#define DC_CTYPE_MII_100FX 0x0010 +#define DC_CTYPE_MII_100FX_FDX 0x0211 +#define DC_CTYPE_DYN_PUP_AUTOSENSE 0x0800 +#define DC_CTYPE_PUP_AUTOSENSE 0x8800 +#define DC_CTYPE_NOMEDIA 0xFFFF + +#define DC_EBLOCK_SIA 0x0002 +#define DC_EBLOCK_MII 0x0003 +#define DC_EBLOCK_SYM 0x0004 +#define DC_EBLOCK_RESET 0x0005 +#define DC_EBLOCK_PHY_SHUTDOWN 0x0006 + +struct dc_leaf_hdr { + u_int16_t dc_mtype; + u_int8_t dc_mcnt; + u_int8_t dc_rsvd; +}; + +struct dc_eblock_hdr { + u_int8_t dc_len; + u_int8_t dc_type; +}; + +struct dc_eblock_sia { + struct dc_eblock_hdr dc_sia_hdr; + u_int8_t dc_sia_code; + u_int8_t dc_sia_mediaspec[6]; /* CSR13, CSR14, CSR15 */ + u_int8_t dc_sia_gpio_ctl[2]; + u_int8_t dc_sia_gpio_dat[2]; +}; + +#define DC_SIA_CODE_10BT 0x00 +#define DC_SIA_CODE_10B2 0x01 +#define DC_SIA_CODE_10B5 0x02 +#define DC_SIA_CODE_10BT_FDX 0x04 +#define DC_SIA_CODE_EXT 0x40 + +/* + * Note that the first word in the gpr and reset + * sequences is always a control word. + */ +struct dc_eblock_mii { + struct dc_eblock_hdr dc_mii_hdr; + u_int8_t dc_mii_phynum; + u_int8_t dc_gpr_len; +/* u_int16_t dc_gpr_dat[n]; */ +/* u_int8_t dc_reset_len; */ +/* u_int16_t dc_reset_dat[n]; */ +/* There are other fields after these, but we don't + * care about them since they can be determined by looking + * at the PHY. + */ +}; + +struct dc_eblock_sym { + struct dc_eblock_hdr dc_sym_hdr; + u_int8_t dc_sym_code; + u_int8_t dc_sym_gpio_ctl[2]; + u_int8_t dc_sym_gpio_dat[2]; + u_int8_t dc_sym_cmd[2]; +}; + +#define DC_SYM_CODE_100BT 0x03 +#define DC_SYM_CODE_100BT_FDX 0x05 +#define DC_SYM_CODE_100T4 0x06 +#define DC_SYM_CODE_100FX 0x07 +#define DC_SYM_CODE_100FX_FDX 0x08 + +struct dc_eblock_reset { + struct dc_eblock_hdr dc_reset_hdr; + u_int8_t dc_reset_len; +/* u_int16_t dc_reset_dat[n]; */ +}; + +#ifdef __alpha__ +#undef vtophys +#define vtophys(va) alpha_XXX_dmamap((vm_offset_t)va) +#endif diff --git a/sys/dev/dc/pnphy.c b/sys/dev/dc/pnphy.c new file mode 100644 index 0000000..ad9ad4f --- /dev/null +++ b/sys/dev/dc/pnphy.c @@ -0,0 +1,276 @@ +/* + * Copyright (c) 1997, 1998, 1999 + * 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. + */ + +/* + * Pseudo-driver for media selection on the Lite-On PNIC 82c168 + * chip. The NWAY support on this chip is horribly broken, so we + * only support manual mode selection. This is lame, but getting + * NWAY to work right is amazingly difficult. + */ + +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +#include <sys/param.h> +#include <sys/systm.h> +#include <sys/kernel.h> +#include <sys/socket.h> +#include <sys/errno.h> +#include <sys/lock.h> +#include <sys/module.h> +#include <sys/mutex.h> +#include <sys/bus.h> + +#include <net/if.h> +#include <net/if_arp.h> +#include <net/if_media.h> + +#include <dev/mii/mii.h> +#include <dev/mii/miivar.h> +#include "miidevs.h" + +#include <machine/bus_pio.h> +#include <machine/bus_memio.h> +#include <machine/bus.h> +#include <machine/resource.h> +#include <sys/bus.h> + +#include <pci/if_dcreg.h> + +#include "miibus_if.h" + +#define DC_SETBIT(sc, reg, x) \ + CSR_WRITE_4(sc, reg, \ + CSR_READ_4(sc, reg) | x) + +#define DC_CLRBIT(sc, reg, x) \ + CSR_WRITE_4(sc, reg, \ + CSR_READ_4(sc, reg) & ~x) + +static int pnphy_probe(device_t); +static int pnphy_attach(device_t); + +static device_method_t pnphy_methods[] = { + /* device interface */ + DEVMETHOD(device_probe, pnphy_probe), + DEVMETHOD(device_attach, pnphy_attach), + DEVMETHOD(device_detach, mii_phy_detach), + DEVMETHOD(device_shutdown, bus_generic_shutdown), + { 0, 0 } +}; + +static devclass_t pnphy_devclass; + +static driver_t pnphy_driver = { + "pnphy", + pnphy_methods, + sizeof(struct mii_softc) +}; + +DRIVER_MODULE(pnphy, miibus, pnphy_driver, pnphy_devclass, 0, 0); + +static int pnphy_service(struct mii_softc *, struct mii_data *, int); +static void pnphy_status(struct mii_softc *); + +static int +pnphy_probe(dev) + device_t dev; +{ + struct mii_attach_args *ma; + + ma = device_get_ivars(dev); + + /* + * The dc driver will report the 82c168 vendor and device + * ID to let us know that it wants us to attach. + */ + if (ma->mii_id1 != DC_VENDORID_LO || + ma->mii_id2 != DC_DEVICEID_82C168) + return(ENXIO); + + device_set_desc(dev, "PNIC 82c168 media interface"); + + return (0); +} + +static int +pnphy_attach(dev) + device_t dev; +{ + struct mii_softc *sc; + struct mii_attach_args *ma; + struct mii_data *mii; + + sc = device_get_softc(dev); + ma = device_get_ivars(dev); + sc->mii_dev = device_get_parent(dev); + mii = device_get_softc(sc->mii_dev); + LIST_INSERT_HEAD(&mii->mii_phys, sc, mii_list); + + sc->mii_inst = mii->mii_instance; + sc->mii_phy = ma->mii_phyno; + sc->mii_service = pnphy_service; + sc->mii_pdata = mii; + + sc->mii_flags |= MIIF_NOISOLATE; + mii->mii_instance++; + +#define ADD(m, c) ifmedia_add(&mii->mii_media, (m), (c), NULL) + + sc->mii_capabilities = + BMSR_100TXFDX|BMSR_100TXHDX|BMSR_10TFDX|BMSR_10THDX; + sc->mii_capabilities &= ma->mii_capmask; + device_printf(dev, " "); + mii_add_media(sc); + printf("\n"); + ADD(IFM_MAKEWORD(IFM_ETHER, IFM_NONE, 0, sc->mii_inst), + BMCR_ISO); + + ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_TX, IFM_LOOP, sc->mii_inst), + BMCR_LOOP|BMCR_S100); + +#undef ADD + + MIIBUS_MEDIAINIT(sc->mii_dev); + return(0); +} + +static int +pnphy_service(sc, mii, cmd) + struct mii_softc *sc; + struct mii_data *mii; + int cmd; +{ + struct ifmedia_entry *ife = mii->mii_media.ifm_cur; + + switch (cmd) { + case MII_POLLSTAT: + /* + * If we're not polling our PHY instance, just return. + */ + if (IFM_INST(ife->ifm_media) != sc->mii_inst) { + return (0); + } + break; + + case MII_MEDIACHG: + /* + * If the media indicates a different PHY instance, + * isolate ourselves. + */ + if (IFM_INST(ife->ifm_media) != sc->mii_inst) + return (0); + + /* + * If the interface is not up, don't do anything. + */ + if ((mii->mii_ifp->if_flags & IFF_UP) == 0) + break; + + sc->mii_flags = 0; + + switch (IFM_SUBTYPE(ife->ifm_media)) { + case IFM_AUTO: + /* NWAY is busted on this chip */ + case IFM_100_T4: + /* + * XXX Not supported as a manual setting right now. + */ + return (EINVAL); + case IFM_100_TX: + mii->mii_media_active = IFM_ETHER|IFM_100_TX; + if ((ife->ifm_media & IFM_GMASK) == IFM_FDX) + mii->mii_media_active |= IFM_FDX; + MIIBUS_STATCHG(sc->mii_dev); + return(0); + case IFM_10_T: + mii->mii_media_active = IFM_ETHER|IFM_10_T; + if ((ife->ifm_media & IFM_GMASK) == IFM_FDX) + mii->mii_media_active |= IFM_FDX; + MIIBUS_STATCHG(sc->mii_dev); + return(0); + default: + return(EINVAL); + } + break; + + case MII_TICK: + /* + * If we're not currently selected, just return. + */ + if (IFM_INST(ife->ifm_media) != sc->mii_inst) + return (0); + + /* + * Is the interface even up? + */ + if ((mii->mii_ifp->if_flags & IFF_UP) == 0) + return (0); + + break; + } + + /* Update the media status. */ + pnphy_status(sc); + + /* Callback if something changed. */ + mii_phy_update(sc, cmd); + return (0); +} + +static void +pnphy_status(sc) + struct mii_softc *sc; +{ + struct mii_data *mii = sc->mii_pdata; + int reg; + struct dc_softc *dc_sc; + + dc_sc = mii->mii_ifp->if_softc; + + mii->mii_media_status = IFM_AVALID; + mii->mii_media_active = IFM_ETHER; + + reg = CSR_READ_4(dc_sc, DC_ISR); + + if (!(reg & DC_ISR_LINKFAIL)) + mii->mii_media_status |= IFM_ACTIVE; + + if (CSR_READ_4(dc_sc, DC_NETCFG) & DC_NETCFG_SPEEDSEL) + mii->mii_media_active |= IFM_10_T; + else + mii->mii_media_active |= IFM_100_TX; + if (CSR_READ_4(dc_sc, DC_NETCFG) & DC_NETCFG_FULLDUPLEX) + mii->mii_media_active |= IFM_FDX; + + return; +} |
