1 /*- 2 * Copyright (c) 2007 The DragonFly Project. All rights reserved. 3 * 4 * This code is derived from software contributed to The DragonFly Project 5 * by Sepherosa Ziehau <sepherosa@gmail.com> 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 * 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in 15 * the documentation and/or other materials provided with the 16 * distribution. 17 * 3. Neither the name of The DragonFly Project nor the names of its 18 * contributors may be used to endorse or promote products derived 19 * from this software without specific, prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 22 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 23 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 24 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 25 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 26 * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING, 27 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 28 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 29 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 30 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 31 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 * 34 * $DragonFly: src/sys/dev/netif/mii_layer/truephy.c,v 1.3 2008/02/10 07:29:27 sephe Exp $ 35 * $FreeBSD$ 36 */ 37 38 #include <sys/param.h> 39 #include <sys/systm.h> 40 #include <sys/kernel.h> 41 #include <sys/socket.h> 42 #include <sys/errno.h> 43 #include <sys/module.h> 44 #include <sys/bus.h> 45 46 #include <net/if.h> 47 #include <net/if_media.h> 48 #include <net/if_arp.h> 49 #include <net/ethernet.h> 50 #include <net/if_vlan_var.h> 51 52 #include <dev/mii/mii.h> 53 #include <dev/mii/miivar.h> 54 #include "miidevs.h" 55 56 #include <dev/mii/truephyreg.h> 57 58 #include "miibus_if.h" 59 60 #define TRUEPHY_FRAMELEN(mtu) \ 61 (ETHER_HDR_LEN + ETHER_VLAN_ENCAP_LEN + (mtu) + ETHER_CRC_LEN) 62 63 static int truephy_service(struct mii_softc *, struct mii_data *, int); 64 static int truephy_attach(device_t); 65 static int truephy_probe(device_t); 66 static void truephy_reset(struct mii_softc *); 67 static void truephy_status(struct mii_softc *); 68 69 static device_method_t truephy_methods[] = { 70 /* device interface */ 71 DEVMETHOD(device_probe, truephy_probe), 72 DEVMETHOD(device_attach, truephy_attach), 73 DEVMETHOD(device_detach, mii_phy_detach), 74 DEVMETHOD(device_shutdown, bus_generic_shutdown), 75 { 0, 0 } 76 }; 77 78 static const struct mii_phydesc truephys[] = { 79 MII_PHY_DESC(AGERE, ET1011), 80 MII_PHY_DESC(AGERE, ET1011C), 81 MII_PHY_END 82 }; 83 84 static devclass_t truephy_devclass; 85 86 static driver_t truephy_driver = { 87 "truephy", 88 truephy_methods, 89 sizeof(struct mii_softc) 90 }; 91 92 DRIVER_MODULE(truephy, miibus, truephy_driver, truephy_devclass, 0, 0); 93 94 static const struct truephy_dsp { 95 uint16_t index; 96 uint16_t data; 97 } truephy_dspcode[] = { 98 { 0x880b, 0x0926 }, /* AfeIfCreg4B1000Msbs */ 99 { 0x880c, 0x0926 }, /* AfeIfCreg4B100Msbs */ 100 { 0x880d, 0x0926 }, /* AfeIfCreg4B10Msbs */ 101 102 { 0x880e, 0xb4d3 }, /* AfeIfCreg4B1000Lsbs */ 103 { 0x880f, 0xb4d3 }, /* AfeIfCreg4B100Lsbs */ 104 { 0x8810, 0xb4d3 }, /* AfeIfCreg4B10Lsbs */ 105 106 { 0x8805, 0xb03e }, /* AfeIfCreg3B1000Msbs */ 107 { 0x8806, 0xb03e }, /* AfeIfCreg3B100Msbs */ 108 { 0x8807, 0xff00 }, /* AfeIfCreg3B10Msbs */ 109 110 { 0x8808, 0xe090 }, /* AfeIfCreg3B1000Lsbs */ 111 { 0x8809, 0xe110 }, /* AfeIfCreg3B100Lsbs */ 112 { 0x880a, 0x0000 }, /* AfeIfCreg3B10Lsbs */ 113 114 { 0x300d, 1 }, /* DisableNorm */ 115 116 { 0x280c, 0x0180 }, /* LinkHoldEnd */ 117 118 { 0x1c21, 0x0002 }, /* AlphaM */ 119 120 { 0x3821, 6 }, /* FfeLkgTx0 */ 121 { 0x381d, 1 }, /* FfeLkg1g4 */ 122 { 0x381e, 1 }, /* FfeLkg1g5 */ 123 { 0x381f, 1 }, /* FfeLkg1g6 */ 124 { 0x3820, 1 }, /* FfeLkg1g7 */ 125 126 { 0x8402, 0x01f0 }, /* Btinact */ 127 { 0x800e, 20 }, /* LftrainTime */ 128 { 0x800f, 24 }, /* DvguardTime */ 129 { 0x8010, 46 } /* IdlguardTime */ 130 }; 131 132 static int 133 truephy_probe(device_t dev) 134 { 135 136 return (mii_phy_dev_probe(dev, truephys, BUS_PROBE_DEFAULT)); 137 } 138 139 static int 140 truephy_attach(device_t dev) 141 { 142 struct mii_softc *sc; 143 struct mii_attach_args *ma; 144 struct mii_data *mii; 145 146 sc = device_get_softc(dev); 147 ma = device_get_ivars(dev); 148 149 sc->mii_phy = ma->mii_phyno; 150 sc->mii_dev = device_get_parent(dev); 151 mii = ma->mii_data; 152 LIST_INSERT_HEAD(&mii->mii_phys, sc, mii_list); 153 154 sc->mii_flags = miibus_get_flags(dev); 155 sc->mii_inst = mii->mii_instance++; 156 sc->mii_phy = ma->mii_phyno; 157 sc->mii_service = truephy_service; 158 sc->mii_pdata = mii; 159 160 sc->mii_flags |= MIIF_NOISOLATE | MIIF_NOLOOP; 161 162 if (MII_MODEL(ma->mii_id2) == MII_MODEL_AGERE_ET1011) 163 mii_phy_reset(sc); 164 else 165 truephy_reset(sc); 166 167 sc->mii_capabilities = PHY_READ(sc, MII_BMSR) & ma->mii_capmask; 168 if (sc->mii_capabilities & BMSR_EXTSTAT) { 169 sc->mii_extcapabilities = PHY_READ(sc, MII_EXTSR); 170 /* No 1000baseT half-duplex support */ 171 sc->mii_extcapabilities &= ~EXTSR_1000THDX; 172 } 173 174 device_printf(dev, " "); 175 mii_phy_add_media(sc); 176 printf("\n"); 177 178 MIIBUS_MEDIAINIT(sc->mii_dev); 179 return (0); 180 } 181 182 static int 183 truephy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) 184 { 185 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 186 int bmcr; 187 188 switch (cmd) { 189 case MII_POLLSTAT: 190 break; 191 192 case MII_MEDIACHG: 193 /* 194 * If the interface is not up, don't do anything. 195 */ 196 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 197 break; 198 199 if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) { 200 bmcr = PHY_READ(sc, MII_BMCR) & ~BMCR_AUTOEN; 201 PHY_WRITE(sc, MII_BMCR, bmcr); 202 PHY_WRITE(sc, MII_BMCR, bmcr | BMCR_PDOWN); 203 } 204 205 mii_phy_setmedia(sc); 206 207 if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) { 208 bmcr = PHY_READ(sc, MII_BMCR) & ~BMCR_PDOWN; 209 PHY_WRITE(sc, MII_BMCR, bmcr); 210 211 if (IFM_SUBTYPE(ife->ifm_media) == IFM_1000_T) { 212 PHY_WRITE(sc, MII_BMCR, 213 bmcr | BMCR_AUTOEN | BMCR_STARTNEG); 214 } 215 } 216 break; 217 218 case MII_TICK: 219 if (mii_phy_tick(sc) == EJUSTRETURN) 220 return (0); 221 break; 222 } 223 224 /* Update the media status. */ 225 truephy_status(sc); 226 227 /* Callback if something changed. */ 228 mii_phy_update(sc, cmd); 229 return (0); 230 } 231 232 static void 233 truephy_reset(struct mii_softc *sc) 234 { 235 int i; 236 237 for (i = 0; i < 2; ++i) { 238 PHY_READ(sc, MII_PHYIDR1); 239 PHY_READ(sc, MII_PHYIDR2); 240 241 PHY_READ(sc, TRUEPHY_CTRL); 242 PHY_WRITE(sc, TRUEPHY_CTRL, 243 TRUEPHY_CTRL_DIAG | TRUEPHY_CTRL_RSV1); 244 245 PHY_WRITE(sc, TRUEPHY_INDEX, TRUEPHY_INDEX_MAGIC); 246 PHY_READ(sc, TRUEPHY_DATA); 247 248 PHY_WRITE(sc, TRUEPHY_CTRL, TRUEPHY_CTRL_RSV1); 249 } 250 251 PHY_READ(sc, MII_BMCR); 252 PHY_READ(sc, TRUEPHY_CTRL); 253 PHY_WRITE(sc, MII_BMCR, BMCR_AUTOEN | BMCR_PDOWN | BMCR_S1000); 254 PHY_WRITE(sc, TRUEPHY_CTRL, 255 TRUEPHY_CTRL_DIAG | TRUEPHY_CTRL_RSV1 | TRUEPHY_CTRL_RSV0); 256 257 #define N(arr) (int)(sizeof(arr) / sizeof(arr[0])) 258 259 for (i = 0; i < N(truephy_dspcode); ++i) { 260 const struct truephy_dsp *dsp = &truephy_dspcode[i]; 261 262 PHY_WRITE(sc, TRUEPHY_INDEX, dsp->index); 263 PHY_WRITE(sc, TRUEPHY_DATA, dsp->data); 264 265 PHY_WRITE(sc, TRUEPHY_INDEX, dsp->index); 266 PHY_READ(sc, TRUEPHY_DATA); 267 } 268 269 #undef N 270 271 PHY_READ(sc, MII_BMCR); 272 PHY_READ(sc, TRUEPHY_CTRL); 273 PHY_WRITE(sc, MII_BMCR, BMCR_AUTOEN | BMCR_S1000); 274 PHY_WRITE(sc, TRUEPHY_CTRL, TRUEPHY_CTRL_RSV1); 275 276 mii_phy_reset(sc); 277 278 if (TRUEPHY_FRAMELEN(sc->mii_pdata->mii_ifp->if_mtu) > 2048) { 279 int conf; 280 281 conf = PHY_READ(sc, TRUEPHY_CONF); 282 conf &= ~TRUEPHY_CONF_TXFIFO_MASK; 283 conf |= TRUEPHY_CONF_TXFIFO_24; 284 PHY_WRITE(sc, TRUEPHY_CONF, conf); 285 } 286 } 287 288 static void 289 truephy_status(struct mii_softc *sc) 290 { 291 struct mii_data *mii = sc->mii_pdata; 292 int bmsr, bmcr, sr; 293 294 mii->mii_media_status = IFM_AVALID; 295 mii->mii_media_active = IFM_ETHER; 296 297 sr = PHY_READ(sc, TRUEPHY_SR); 298 bmcr = PHY_READ(sc, MII_BMCR); 299 300 bmsr = PHY_READ(sc, MII_BMSR) | PHY_READ(sc, MII_BMSR); 301 if (bmsr & BMSR_LINK) 302 mii->mii_media_status |= IFM_ACTIVE; 303 304 if (bmcr & BMCR_AUTOEN) { 305 if ((bmsr & BMSR_ACOMP) == 0) { 306 mii->mii_media_active |= IFM_NONE; 307 return; 308 } 309 } 310 311 switch (sr & TRUEPHY_SR_SPD_MASK) { 312 case TRUEPHY_SR_SPD_1000T: 313 mii->mii_media_active |= IFM_1000_T; 314 break; 315 case TRUEPHY_SR_SPD_100TX: 316 mii->mii_media_active |= IFM_100_TX; 317 break; 318 case TRUEPHY_SR_SPD_10T: 319 mii->mii_media_active |= IFM_10_T; 320 break; 321 default: 322 /* XXX will this ever happen? */ 323 printf("invalid media SR %#x\n", sr); 324 mii->mii_media_active |= IFM_NONE; 325 return; 326 } 327 328 if (sr & TRUEPHY_SR_FDX) 329 mii->mii_media_active |= IFM_FDX; 330 else 331 mii->mii_media_active |= IFM_HDX; 332 } 333