1139749Simp/*- 250702Swpaul * Copyright (c) 1997, 1998, 1999 350702Swpaul * Bill Paul <wpaul@ctr.columbia.edu>. All rights reserved. 450702Swpaul * 550702Swpaul * Redistribution and use in source and binary forms, with or without 650702Swpaul * modification, are permitted provided that the following conditions 750702Swpaul * are met: 850702Swpaul * 1. Redistributions of source code must retain the above copyright 950702Swpaul * notice, this list of conditions and the following disclaimer. 1050702Swpaul * 2. Redistributions in binary form must reproduce the above copyright 1150702Swpaul * notice, this list of conditions and the following disclaimer in the 1250702Swpaul * documentation and/or other materials provided with the distribution. 1350702Swpaul * 3. All advertising materials mentioning features or use of this software 1450702Swpaul * must display the following acknowledgement: 1550702Swpaul * This product includes software developed by Bill Paul. 1650702Swpaul * 4. Neither the name of the author nor the names of any co-contributors 1750702Swpaul * may be used to endorse or promote products derived from this software 1850702Swpaul * without specific prior written permission. 1950702Swpaul * 2050702Swpaul * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND 2150702Swpaul * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 2250702Swpaul * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 2350702Swpaul * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD 2450702Swpaul * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 2550702Swpaul * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 2650702Swpaul * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 2750702Swpaul * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 2850702Swpaul * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 2950702Swpaul * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 3050702Swpaul * THE POSSIBILITY OF SUCH DAMAGE. 3150702Swpaul */ 3250702Swpaul 33119418Sobrien#include <sys/cdefs.h> 34119418Sobrien__FBSDID("$FreeBSD$"); 35119418Sobrien 3650702Swpaul/* 3750702Swpaul * driver for RealTek 8139 internal PHYs 3850702Swpaul */ 3950702Swpaul 4050702Swpaul#include <sys/param.h> 4150702Swpaul#include <sys/systm.h> 4250702Swpaul#include <sys/kernel.h> 43129876Sphk#include <sys/module.h> 4450702Swpaul#include <sys/socket.h> 4550702Swpaul#include <sys/bus.h> 4650702Swpaul 4750702Swpaul#include <net/if.h> 4894149Swpaul#include <net/if_arp.h> 4950702Swpaul#include <net/if_media.h> 5050702Swpaul 5150702Swpaul#include <dev/mii/mii.h> 5250702Swpaul#include <dev/mii/miivar.h> 53109514Sobrien#include "miidevs.h" 5450702Swpaul 5594149Swpaul#include <machine/bus.h> 5694149Swpaul#include <pci/if_rlreg.h> 5794149Swpaul 5850702Swpaul#include "miibus_if.h" 5950702Swpaul 60105135Salfredstatic int rlphy_probe(device_t); 61105135Salfredstatic int rlphy_attach(device_t); 6250702Swpaul 6350702Swpaulstatic device_method_t rlphy_methods[] = { 6450702Swpaul /* device interface */ 6550702Swpaul DEVMETHOD(device_probe, rlphy_probe), 6650702Swpaul DEVMETHOD(device_attach, rlphy_attach), 6795722Sphk DEVMETHOD(device_detach, mii_phy_detach), 6850702Swpaul DEVMETHOD(device_shutdown, bus_generic_shutdown), 69227908Smarius DEVMETHOD_END 7050702Swpaul}; 7150702Swpaul 7250702Swpaulstatic devclass_t rlphy_devclass; 7350702Swpaul 7450702Swpaulstatic driver_t rlphy_driver = { 7550702Swpaul "rlphy", 7650702Swpaul rlphy_methods, 77221407Smarius sizeof(struct mii_softc) 7850702Swpaul}; 7950702Swpaul 8050702SwpaulDRIVER_MODULE(rlphy, miibus, rlphy_driver, rlphy_devclass, 0, 0); 8150702Swpaul 8292739Salfredstatic int rlphy_service(struct mii_softc *, struct mii_data *, int); 8394149Swpaulstatic void rlphy_status(struct mii_softc *); 8450702Swpaul 85165991Smarius/* 86165991Smarius * RealTek internal PHYs don't have vendor/device ID registers; 87165991Smarius * re(4) and rl(4) fake up a return value of all zeros. 88165991Smarius */ 89165991Smariusstatic const struct mii_phydesc rlintphys[] = { 90165991Smarius { 0, 0, "RealTek internal media interface" }, 91165991Smarius MII_PHY_END 92165991Smarius}; 93165991Smarius 94164827Smariusstatic const struct mii_phydesc rlphys[] = { 95221407Smarius MII_PHY_DESC(yyREALTEK, RTL8201L), 96221407Smarius MII_PHY_DESC(REALTEK, RTL8201E), 97221407Smarius MII_PHY_DESC(xxICPLUS, IP101), 98164827Smarius MII_PHY_END 99164827Smarius}; 100164827Smarius 101221407Smariusstatic const struct mii_phy_funcs rlphy_funcs = { 102221407Smarius rlphy_service, 103221407Smarius rlphy_status, 104221407Smarius mii_phy_reset 105221407Smarius}; 106221407Smarius 107105135Salfredstatic int 108150763Simprlphy_probe(device_t dev) 10950702Swpaul{ 110164827Smarius const char *nic; 111164827Smarius int rv; 11250702Swpaul 113164827Smarius rv = mii_phy_dev_probe(dev, rlphys, BUS_PROBE_DEFAULT); 114164827Smarius if (rv <= 0) 115164827Smarius return (rv); 11650702Swpaul 117164827Smarius nic = device_get_name(device_get_parent(device_get_parent(dev))); 118166164Smarius if (strcmp(nic, "rl") == 0 || strcmp(nic, "re") == 0) 119165991Smarius return (mii_phy_dev_probe(dev, rlintphys, BUS_PROBE_DEFAULT)); 120165991Smarius return (ENXIO); 12150702Swpaul} 12250702Swpaul 123105135Salfredstatic int 124150763Simprlphy_attach(device_t dev) 12550702Swpaul{ 12650702Swpaul 127213364Smarius /* 128213364Smarius * The RealTek PHY can never be isolated. 129213364Smarius */ 130221407Smarius mii_phy_dev_attach(dev, MIIF_NOISOLATE | MIIF_NOMANPAUSE, 131221407Smarius &rlphy_funcs, 1); 132164711Smarius return (0); 13350702Swpaul} 13450702Swpaul 13584145Sjlemonstatic int 136150763Simprlphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) 13750702Swpaul{ 13850702Swpaul 13950702Swpaul switch (cmd) { 14050702Swpaul case MII_POLLSTAT: 14150702Swpaul break; 14250702Swpaul 14350702Swpaul case MII_MEDIACHG: 14450702Swpaul /* 14550702Swpaul * If the interface is not up, don't do anything. 14650702Swpaul */ 14750702Swpaul if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 14850702Swpaul break; 14950702Swpaul 150164711Smarius mii_phy_setmedia(sc); 15150702Swpaul break; 15250702Swpaul 15350702Swpaul case MII_TICK: 15450702Swpaul /* 15550702Swpaul * Is the interface even up? 15650702Swpaul */ 15750702Swpaul if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 15850702Swpaul return (0); 15950702Swpaul 16050702Swpaul /* 16150702Swpaul * The RealTek PHY's autonegotiation doesn't need to be 16250702Swpaul * kicked; it continues in the background. 16350702Swpaul */ 16450702Swpaul break; 16550702Swpaul } 16650702Swpaul 16750702Swpaul /* Update the media status. */ 168221407Smarius PHY_STATUS(sc); 16950702Swpaul 17050702Swpaul /* Callback if something changed. */ 17184145Sjlemon mii_phy_update(sc, cmd); 17250702Swpaul return (0); 17350702Swpaul} 17494149Swpaul 175104094Sphkstatic void 176150763Simprlphy_status(struct mii_softc *phy) 17794149Swpaul{ 17894149Swpaul struct mii_data *mii = phy->mii_pdata; 179164711Smarius struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 18094149Swpaul int bmsr, bmcr, anlpar; 18194149Swpaul 18294149Swpaul mii->mii_media_status = IFM_AVALID; 18394149Swpaul mii->mii_media_active = IFM_ETHER; 18494149Swpaul 18594149Swpaul bmsr = PHY_READ(phy, MII_BMSR) | PHY_READ(phy, MII_BMSR); 18694149Swpaul if (bmsr & BMSR_LINK) 18794149Swpaul mii->mii_media_status |= IFM_ACTIVE; 18894149Swpaul 18994149Swpaul bmcr = PHY_READ(phy, MII_BMCR); 19094149Swpaul if (bmcr & BMCR_ISO) { 19194149Swpaul mii->mii_media_active |= IFM_NONE; 19294149Swpaul mii->mii_media_status = 0; 19394149Swpaul return; 19494149Swpaul } 19594149Swpaul 19694149Swpaul if (bmcr & BMCR_LOOP) 19794149Swpaul mii->mii_media_active |= IFM_LOOP; 19894149Swpaul 19994149Swpaul if (bmcr & BMCR_AUTOEN) { 20094149Swpaul /* 20194149Swpaul * NWay autonegotiation takes the highest-order common 20294149Swpaul * bit of the ANAR and ANLPAR (i.e. best media advertised 20394149Swpaul * both by us and our link partner). 20494149Swpaul */ 20594149Swpaul if ((bmsr & BMSR_ACOMP) == 0) { 20694149Swpaul /* Erg, still trying, I guess... */ 20794149Swpaul mii->mii_media_active |= IFM_NONE; 20894149Swpaul return; 20994149Swpaul } 21094149Swpaul 21194149Swpaul if ((anlpar = PHY_READ(phy, MII_ANAR) & 21294149Swpaul PHY_READ(phy, MII_ANLPAR))) { 213173665Syongari if (anlpar & ANLPAR_TX_FD) 214173665Syongari mii->mii_media_active |= IFM_100_TX|IFM_FDX; 215173665Syongari else if (anlpar & ANLPAR_T4) 216213384Smarius mii->mii_media_active |= IFM_100_T4|IFM_HDX; 21794149Swpaul else if (anlpar & ANLPAR_TX) 218213384Smarius mii->mii_media_active |= IFM_100_TX|IFM_HDX; 21994149Swpaul else if (anlpar & ANLPAR_10_FD) 22094149Swpaul mii->mii_media_active |= IFM_10_T|IFM_FDX; 22194149Swpaul else if (anlpar & ANLPAR_10) 222213384Smarius mii->mii_media_active |= IFM_10_T|IFM_HDX; 22394149Swpaul else 224164711Smarius mii->mii_media_active |= IFM_NONE; 225221407Smarius if ((mii->mii_media_active & IFM_FDX) != 0) 226221407Smarius mii->mii_media_active |= 227221407Smarius mii_phy_flowstatus(phy); 22894149Swpaul return; 22994149Swpaul } 23094149Swpaul /* 23194149Swpaul * If the other side doesn't support NWAY, then the 23294149Swpaul * best we can do is determine if we have a 10Mbps or 233164711Smarius * 100Mbps link. There's no way to know if the link 23494149Swpaul * is full or half duplex, so we default to half duplex 23594149Swpaul * and hope that the user is clever enough to manually 23694149Swpaul * change the media settings if we're wrong. 23794149Swpaul */ 23894149Swpaul 23994149Swpaul /* 24094149Swpaul * The RealTek PHY supports non-NWAY link speed 24194149Swpaul * detection, however it does not report the link 24294149Swpaul * detection results via the ANLPAR or BMSR registers. 24394149Swpaul * (What? RealTek doesn't do things the way everyone 24494149Swpaul * else does? I'm just shocked, shocked I tell you.) 24594149Swpaul * To determine the link speed, we have to do one 24694149Swpaul * of two things: 24794149Swpaul * 248221407Smarius * - If this is a standalone RealTek RTL8201(L) or 249221407Smarius * workalike PHY, we can determine the link speed by 250221407Smarius * testing bit 0 in the magic, vendor-specific register 251221407Smarius * at offset 0x19. 25294149Swpaul * 25394149Swpaul * - If this is a RealTek MAC with integrated PHY, we 25494149Swpaul * can test the 'SPEED10' bit of the MAC's media status 25594149Swpaul * register. 25694149Swpaul */ 257221407Smarius if (!(phy->mii_mpd_model == 0 && phy->mii_mpd_rev == 0)) { 25894149Swpaul if (PHY_READ(phy, 0x0019) & 0x01) 25994149Swpaul mii->mii_media_active |= IFM_100_TX; 26094149Swpaul else 26194149Swpaul mii->mii_media_active |= IFM_10_T; 26294149Swpaul } else { 26394149Swpaul if (PHY_READ(phy, RL_MEDIASTAT) & 26494149Swpaul RL_MEDIASTAT_SPEED10) 26594149Swpaul mii->mii_media_active |= IFM_10_T; 26694149Swpaul else 26794149Swpaul mii->mii_media_active |= IFM_100_TX; 26894149Swpaul } 269213384Smarius mii->mii_media_active |= IFM_HDX; 27094149Swpaul } else 271164711Smarius mii->mii_media_active = ife->ifm_media; 27294149Swpaul} 273