1 /* $NetBSD: ukphy_subr.c,v 1.9 2005/12/11 12:22:42 christos Exp $ */
4 * Copyright (c) 1998 The NetBSD Foundation, Inc.
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
9 * NASA Ames Research Center, and by Frank van der Linden.
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
19 * 3. All advertising materials mentioning features or use of this software
20 * must display the following acknowledgement:
21 * This product includes software developed by the NetBSD
22 * Foundation, Inc. and its contributors.
23 * 4. Neither the name of The NetBSD Foundation nor the names of its
24 * contributors may be used to endorse or promote products derived
25 * from this software without specific prior written permission.
27 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
28 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
29 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
30 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
31 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
32 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
33 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
34 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
35 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
36 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
37 * POSSIBILITY OF SUCH DAMAGE.
39 * $DragonFly: src/sys/dev/netif/mii_layer/ukphy_subr.c,v 1.7 2006/08/06 10:32:23 sephe Exp $
43 * Subroutines shared by the ukphy driver and other PHY drivers.
46 #include <sys/param.h>
47 #include <sys/systm.h>
48 #include <sys/kernel.h>
49 #include <sys/socket.h>
50 #include <sys/module.h>
54 #include <net/if_media.h>
59 #include "miibus_if.h"
62 * Media status subroutine. If a PHY driver does media detection simply
63 * by decoding the NWay autonegotiation, use this routine.
66 ukphy_status(struct mii_softc *phy)
68 struct mii_data *mii = phy->mii_pdata;
69 int bmsr, bmcr, anlpar, gtcr, gtsr;
71 mii->mii_media_status = IFM_AVALID;
72 mii->mii_media_active = IFM_ETHER;
74 bmsr = PHY_READ(phy, MII_BMSR) | PHY_READ(phy, MII_BMSR);
76 mii->mii_media_status |= IFM_ACTIVE;
78 bmcr = PHY_READ(phy, MII_BMCR);
79 if (bmcr & BMCR_ISO) {
80 mii->mii_media_active |= IFM_NONE;
81 mii->mii_media_status = 0;
86 mii->mii_media_active |= IFM_LOOP;
88 if (bmcr & BMCR_AUTOEN) {
90 * NWay autonegotiation takes the highest-order common
91 * bit of the ANAR and ANLPAR (i.e. best media advertised
92 * both by us and our link partner).
94 if ((bmsr & BMSR_ACOMP) == 0) {
95 /* Erg, still trying, I guess... */
96 mii->mii_media_active |= IFM_NONE;
100 anlpar = PHY_READ(phy, MII_ANAR) & PHY_READ(phy, MII_ANLPAR);
101 if ((phy->mii_flags & MIIF_HAVE_GTCR) != 0 &&
102 (phy->mii_extcapabilities &
103 (EXTSR_1000THDX | EXTSR_1000TFDX)) != 0) {
104 gtcr = PHY_READ(phy, MII_100T2CR);
105 gtsr = PHY_READ(phy, MII_100T2SR);
110 if ((gtcr & GTCR_ADV_1000TFDX) && (gtsr & GTSR_LP_1000TFDX))
111 mii->mii_media_active |= IFM_1000_T|IFM_FDX;
112 else if ((gtcr & GTCR_ADV_1000THDX) &&
113 (gtsr & GTSR_LP_1000THDX))
114 mii->mii_media_active |= IFM_1000_T;
115 else if (anlpar & ANLPAR_T4)
116 mii->mii_media_active |= IFM_100_T4;
117 else if (anlpar & ANLPAR_TX_FD)
118 mii->mii_media_active |= IFM_100_TX|IFM_FDX;
119 else if (anlpar & ANLPAR_TX)
120 mii->mii_media_active |= IFM_100_TX;
121 else if (anlpar & ANLPAR_10_FD)
122 mii->mii_media_active |= IFM_10_T|IFM_FDX;
123 else if (anlpar & ANLPAR_10)
124 mii->mii_media_active |= IFM_10_T;
126 mii->mii_media_active |= IFM_NONE;
128 if ((mii->mii_media_active & IFM_1000_T) &&
129 (gtsr & GTSR_MS_RES))
130 mii->mii_media_active |= IFM_ETH_MASTER;
132 if (mii->mii_media_active & IFM_FDX)
133 mii->mii_media_active |= mii_phy_flowstatus(phy);
135 mii->mii_media_active = mii->mii_media.ifm_cur->ifm_media;