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 FRAMELEN(mtu) (ETHER_HDR_LEN + ETHER_VLAN_ENCAP_LEN + (mtu) + ETHER_CRC_LEN) 61 62 static int truephy_service(struct mii_softc *, struct mii_data *, int); 63 static int truephy_attach(device_t); 64 static int truephy_probe(device_t); 65 static void truephy_reset(struct mii_softc *); 66 static void truephy_status(struct mii_softc *); 67 68 static device_method_t truephy_methods[] = { 69 /* device interface */ 70 DEVMETHOD(device_probe, truephy_probe), 71 DEVMETHOD(device_attach, truephy_attach), 72 DEVMETHOD(device_detach, mii_phy_detach), 73 DEVMETHOD(device_shutdown, bus_generic_shutdown), 74 { 0, 0 } 75 }; 76 77 static const struct mii_phydesc truephys[] = { 78 MII_PHY_DESC(AGERE, ET1011C), 79 MII_PHY_END 80 }; 81 82 static devclass_t truephy_devclass; 83 84 static driver_t truephy_driver = { 85 "truephy", 86 truephy_methods, 87 sizeof(struct mii_softc) 88 }; 89 90 DRIVER_MODULE(truephy, miibus, truephy_driver, truephy_devclass, 0, 0); 91 92 static const struct truephy_dsp { 93 uint16_t index; 94 uint16_t data; 95 } truephy_dspcode[] = { 96 { 0x880b, 0x0926 }, /* AfeIfCreg4B1000Msbs */ 97 { 0x880c, 0x0926 }, /* AfeIfCreg4B100Msbs */ 98 { 0x880d, 0x0926 }, /* AfeIfCreg4B10Msbs */ 99 100 { 0x880e, 0xb4d3 }, /* AfeIfCreg4B1000Lsbs */ 101 { 0x880f, 0xb4d3 }, /* AfeIfCreg4B100Lsbs */ 102 { 0x8810, 0xb4d3 }, /* AfeIfCreg4B10Lsbs */ 103 104 { 0x8805, 0xb03e }, /* AfeIfCreg3B1000Msbs */ 105 { 0x8806, 0xb03e }, /* AfeIfCreg3B100Msbs */ 106 { 0x8807, 0xff00 }, /* AfeIfCreg3B10Msbs */ 107 108 { 0x8808, 0xe090 }, /* AfeIfCreg3B1000Lsbs */ 109 { 0x8809, 0xe110 }, /* AfeIfCreg3B100Lsbs */ 110 { 0x880a, 0x0000 }, /* AfeIfCreg3B10Lsbs */ 111 112 { 0x300d, 1 }, /* DisableNorm */ 113 114 { 0x280c, 0x0180 }, /* LinkHoldEnd */ 115 116 { 0x1c21, 0x0002 }, /* AlphaM */ 117 118 { 0x3821, 6 }, /* FfeLkgTx0 */ 119 { 0x381d, 1 }, /* FfeLkg1g4 */ 120 { 0x381e, 1 }, /* FfeLkg1g5 */ 121 { 0x381f, 1 }, /* FfeLkg1g6 */ 122 { 0x3820, 1 }, /* FfeLkg1g7 */ 123 124 { 0x8402, 0x01f0 }, /* Btinact */ 125 { 0x800e, 20 }, /* LftrainTime */ 126 { 0x800f, 24 }, /* DvguardTime */ 127 { 0x8010, 46 } /* IdlguardTime */ 128 }; 129 130 static int 131 truephy_probe(device_t dev) 132 { 133 134 return (mii_phy_dev_probe(dev, truephys, BUS_PROBE_DEFAULT)); 135 } 136 137 static int 138 truephy_attach(device_t dev) 139 { 140 struct mii_softc *sc; 141 struct mii_attach_args *ma; 142 struct mii_data *mii; 143 144 sc = device_get_softc(dev); 145 ma = device_get_ivars(dev); 146 147 sc->mii_phy = ma->mii_phyno; 148 if (sc->mii_anegticks == 0) 149 sc->mii_anegticks = MII_ANEGTICKS; 150 sc->mii_dev = device_get_parent(dev); 151 mii = device_get_softc(sc->mii_dev); 152 LIST_INSERT_HEAD(&mii->mii_phys, sc, mii_list); 153 154 sc->mii_inst = mii->mii_instance; 155 sc->mii_phy = ma->mii_phyno; 156 sc->mii_service = truephy_service; 157 sc->mii_pdata = mii; 158 159 sc->mii_flags |= MIIF_NOISOLATE | MIIF_NOLOOP; 160 161 mii->mii_instance++; 162 163 truephy_reset(sc); 164 165 sc->mii_capabilities = PHY_READ(sc, MII_BMSR) & ma->mii_capmask; 166 if (sc->mii_capabilities & BMSR_EXTSTAT) { 167 sc->mii_extcapabilities = PHY_READ(sc, MII_EXTSR); 168 /* No 1000baseT half-duplex support */ 169 sc->mii_extcapabilities &= ~EXTSR_1000THDX; 170 } 171 172 device_printf(dev, " "); 173 if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0 && 174 (sc->mii_extcapabilities & EXTSR_MEDIAMASK) == 0) 175 printf("no media present"); 176 else 177 mii_phy_add_media(sc); 178 printf("\n"); 179 180 MIIBUS_MEDIAINIT(sc->mii_dev); 181 return 0; 182 } 183 184 static int 185 truephy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) 186 { 187 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 188 int bmcr; 189 190 switch (cmd) { 191 case MII_POLLSTAT: 192 /* 193 * If we're not polling our PHY instance, just return. 194 */ 195 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 196 return 0; 197 break; 198 199 case MII_MEDIACHG: 200 /* 201 * If the media indicates a different PHY instance, 202 * isolate ourselves. 203 */ 204 if (IFM_INST(ife->ifm_media) != sc->mii_inst) { 205 bmcr = PHY_READ(sc, MII_BMCR); 206 PHY_WRITE(sc, MII_BMCR, bmcr | BMCR_ISO); 207 return 0; 208 } 209 210 /* 211 * If the interface is not up, don't do anything. 212 */ 213 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 214 break; 215 216 if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) { 217 bmcr = PHY_READ(sc, MII_BMCR) & ~BMCR_AUTOEN; 218 PHY_WRITE(sc, MII_BMCR, bmcr); 219 PHY_WRITE(sc, MII_BMCR, bmcr | BMCR_PDOWN); 220 } 221 222 mii_phy_setmedia(sc); 223 224 if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) { 225 bmcr = PHY_READ(sc, MII_BMCR) & ~BMCR_PDOWN; 226 PHY_WRITE(sc, MII_BMCR, bmcr); 227 228 if (IFM_SUBTYPE(ife->ifm_media) == IFM_1000_T) { 229 PHY_WRITE(sc, MII_BMCR, 230 bmcr | BMCR_AUTOEN | BMCR_STARTNEG); 231 } 232 } 233 break; 234 235 case MII_TICK: 236 /* 237 * If we're not currently selected, just return. 238 */ 239 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 240 return 0; 241 242 if (mii_phy_tick(sc) == EJUSTRETURN) 243 return 0; 244 break; 245 } 246 247 /* Update the media status. */ 248 truephy_status(sc); 249 250 /* Callback if something changed. */ 251 mii_phy_update(sc, cmd); 252 return 0; 253 } 254 255 static void 256 truephy_reset(struct mii_softc *sc) 257 { 258 int i; 259 260 for (i = 0; i < 2; ++i) { 261 PHY_READ(sc, MII_PHYIDR1); 262 PHY_READ(sc, MII_PHYIDR2); 263 264 PHY_READ(sc, TRUEPHY_CTRL); 265 PHY_WRITE(sc, TRUEPHY_CTRL, 266 TRUEPHY_CTRL_DIAG | TRUEPHY_CTRL_RSV1); 267 268 PHY_WRITE(sc, TRUEPHY_INDEX, TRUEPHY_INDEX_MAGIC); 269 PHY_READ(sc, TRUEPHY_DATA); 270 271 PHY_WRITE(sc, TRUEPHY_CTRL, TRUEPHY_CTRL_RSV1); 272 } 273 274 PHY_READ(sc, MII_BMCR); 275 PHY_READ(sc, TRUEPHY_CTRL); 276 PHY_WRITE(sc, MII_BMCR, BMCR_AUTOEN | BMCR_PDOWN | BMCR_S1000); 277 PHY_WRITE(sc, TRUEPHY_CTRL, 278 TRUEPHY_CTRL_DIAG | TRUEPHY_CTRL_RSV1 | TRUEPHY_CTRL_RSV0); 279 280 #define N(arr) (int)(sizeof(arr) / sizeof(arr[0])) 281 282 for (i = 0; i < N(truephy_dspcode); ++i) { 283 const struct truephy_dsp *dsp = &truephy_dspcode[i]; 284 285 PHY_WRITE(sc, TRUEPHY_INDEX, dsp->index); 286 PHY_WRITE(sc, TRUEPHY_DATA, dsp->data); 287 288 PHY_WRITE(sc, TRUEPHY_INDEX, dsp->index); 289 PHY_READ(sc, TRUEPHY_DATA); 290 } 291 292 #undef N 293 294 PHY_READ(sc, MII_BMCR); 295 PHY_READ(sc, TRUEPHY_CTRL); 296 PHY_WRITE(sc, MII_BMCR, BMCR_AUTOEN | BMCR_S1000); 297 PHY_WRITE(sc, TRUEPHY_CTRL, TRUEPHY_CTRL_RSV1); 298 299 mii_phy_reset(sc); 300 301 if (FRAMELEN(sc->mii_pdata->mii_ifp->if_mtu) > 2048) { 302 int conf; 303 304 conf = PHY_READ(sc, TRUEPHY_CONF); 305 conf &= ~TRUEPHY_CONF_TXFIFO_MASK; 306 conf |= TRUEPHY_CONF_TXFIFO_24; 307 PHY_WRITE(sc, TRUEPHY_CONF, conf); 308 } 309 } 310 311 static void 312 truephy_status(struct mii_softc *sc) 313 { 314 struct mii_data *mii = sc->mii_pdata; 315 int bmsr, bmcr, sr; 316 317 mii->mii_media_status = IFM_AVALID; 318 mii->mii_media_active = IFM_ETHER; 319 320 sr = PHY_READ(sc, TRUEPHY_SR); 321 bmcr = PHY_READ(sc, MII_BMCR); 322 323 bmsr = PHY_READ(sc, MII_BMSR) | PHY_READ(sc, MII_BMSR); 324 if (bmsr & BMSR_LINK) 325 mii->mii_media_status |= IFM_ACTIVE; 326 327 if (bmcr & BMCR_AUTOEN) { 328 if ((bmsr & BMSR_ACOMP) == 0) { 329 mii->mii_media_active |= IFM_NONE; 330 return; 331 } 332 } 333 334 switch (sr & TRUEPHY_SR_SPD_MASK) { 335 case TRUEPHY_SR_SPD_1000T: 336 mii->mii_media_active |= IFM_1000_T; 337 break; 338 case TRUEPHY_SR_SPD_100TX: 339 mii->mii_media_active |= IFM_100_TX; 340 break; 341 case TRUEPHY_SR_SPD_10T: 342 mii->mii_media_active |= IFM_10_T; 343 break; 344 default: 345 /* XXX will this ever happen? */ 346 printf("invalid media SR %#x\n", sr); 347 mii->mii_media_active |= IFM_NONE; 348 return; 349 } 350 351 if (sr & TRUEPHY_SR_FDX) 352 mii->mii_media_active |= IFM_FDX; 353 else 354 mii->mii_media_active |= IFM_HDX; 355 } 356