Annotation of sys/dev/mii/txphy.c, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: txphy.c,v 1.10 2005/02/19 06:00:04 brad Exp $ */
! 2:
! 3: /*
! 4: * Copyright (c) 1999 Jason L. Wright (jason@thought.net)
! 5: * All rights reserved.
! 6: *
! 7: * Redistribution and use in source and binary forms, with or without
! 8: * modification, are permitted provided that the following conditions
! 9: * are met:
! 10: * 1. Redistributions of source code must retain the above copyright
! 11: * notice, this list of conditions and the following disclaimer.
! 12: * 2. Redistributions in binary form must reproduce the above copyright
! 13: * notice, this list of conditions and the following disclaimer in the
! 14: * documentation and/or other materials provided with the distribution.
! 15: *
! 16: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
! 17: * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
! 18: * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
! 19: * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
! 20: * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
! 21: * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
! 22: * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
! 23: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
! 24: * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
! 25: * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
! 26: * POSSIBILITY OF SUCH DAMAGE.
! 27: */
! 28:
! 29: /*
! 30: * Driver for the Texas Instruments TNETE2101 phy.
! 31: */
! 32:
! 33: #include <sys/param.h>
! 34: #include <sys/systm.h>
! 35: #include <sys/kernel.h>
! 36: #include <sys/device.h>
! 37: #include <sys/socket.h>
! 38: #include <sys/errno.h>
! 39:
! 40: #include <net/if.h>
! 41: #include <net/if_media.h>
! 42:
! 43: #include <dev/mii/mii.h>
! 44: #include <dev/mii/miivar.h>
! 45: #include <dev/mii/miidevs.h>
! 46:
! 47: int txphymatch(struct device *, void *, void *);
! 48: void txphyattach(struct device *, struct device *, void *);
! 49:
! 50: struct cfattach txphy_ca = {
! 51: sizeof(struct mii_softc), txphymatch, txphyattach, mii_phy_detach,
! 52: mii_phy_activate
! 53: };
! 54:
! 55: struct cfdriver txphy_cd = {
! 56: NULL, "txphy", DV_DULL
! 57: };
! 58:
! 59: int txphy_service(struct mii_softc *, struct mii_data *, int);
! 60:
! 61: const struct mii_phy_funcs txphy_funcs = {
! 62: txphy_service, ukphy_status, mii_phy_reset,
! 63: };
! 64:
! 65: static const struct mii_phydesc txphys[] = {
! 66: { MII_OUI_xxTI, MII_MODEL_xxTI_TNETE2101,
! 67: MII_STR_xxTI_TNETE2101 },
! 68:
! 69: { 0, 0,
! 70: NULL },
! 71: };
! 72:
! 73: int
! 74: txphymatch(struct device *parent, void *match, void *aux)
! 75: {
! 76: struct mii_attach_args *ma = aux;
! 77:
! 78: if (mii_phy_match(ma, txphys) != NULL)
! 79: return (10);
! 80:
! 81: return (0);
! 82: }
! 83:
! 84: void
! 85: txphyattach(struct device *parent, struct device *self, void *aux)
! 86: {
! 87: struct mii_softc *sc = (struct mii_softc *)self;
! 88: struct mii_attach_args *ma = aux;
! 89: struct mii_data *mii = ma->mii_data;
! 90: const struct mii_phydesc *mpd;
! 91:
! 92: mpd = mii_phy_match(ma, txphys);
! 93: printf(": %s, rev. %d\n", mpd->mpd_name, MII_REV(ma->mii_id2));
! 94:
! 95: sc->mii_inst = mii->mii_instance;
! 96: sc->mii_phy = ma->mii_phyno;
! 97: sc->mii_funcs = &txphy_funcs;
! 98: sc->mii_pdata = mii;
! 99: sc->mii_flags = ma->mii_flags;
! 100:
! 101: PHY_RESET(sc);
! 102:
! 103: sc->mii_capabilities =
! 104: PHY_READ(sc, MII_BMSR) & ma->mii_capmask;
! 105: if (sc->mii_capabilities & BMSR_MEDIAMASK)
! 106: mii_phy_add_media(sc);
! 107: }
! 108:
! 109: int
! 110: txphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd)
! 111: {
! 112: struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
! 113:
! 114: if ((sc->mii_dev.dv_flags & DVF_ACTIVE) == 0)
! 115: return (ENXIO);
! 116:
! 117: /*
! 118: * Can't isolate the RTL8139 phy, so it has to be the only one.
! 119: */
! 120: if (IFM_INST(ife->ifm_media) != sc->mii_inst)
! 121: panic("txphy_service: attempt to isolate phy");
! 122:
! 123: switch (cmd) {
! 124: case MII_POLLSTAT:
! 125: break;
! 126:
! 127: case MII_MEDIACHG:
! 128: /*
! 129: * If the interface is not up, don't do anything.
! 130: */
! 131: if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
! 132: break;
! 133:
! 134: mii_phy_setmedia(sc);
! 135: break;
! 136:
! 137: case MII_TICK:
! 138: if (mii_phy_tick(sc) == EJUSTRETURN)
! 139: return (0);
! 140: break;
! 141:
! 142: case MII_DOWN:
! 143: mii_phy_down(sc);
! 144: return (0);
! 145: }
! 146:
! 147: /* Update the media status. */
! 148: mii_phy_status(sc);
! 149:
! 150: /* Callback if something changed. */
! 151: mii_phy_update(sc, cmd);
! 152: return (0);
! 153: }
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