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 if (sc->mii_anegticks == 0) 151 sc->mii_anegticks = MII_ANEGTICKS; 152 sc->mii_dev = device_get_parent(dev); 153 mii = device_get_softc(sc->mii_dev); 154 LIST_INSERT_HEAD(&mii->mii_phys, sc, mii_list); 155 156 sc->mii_inst = mii->mii_instance; 157 sc->mii_phy = ma->mii_phyno; 158 sc->mii_service = truephy_service; 159 sc->mii_pdata = mii; 160 161 sc->mii_flags |= MIIF_NOISOLATE | MIIF_NOLOOP; 162 163 mii->mii_instance++; 164 165 if (MII_MODEL(ma->mii_id2) == MII_MODEL_AGERE_ET1011) 166 mii_phy_reset(sc); 167 else 168 truephy_reset(sc); 169 170 sc->mii_capabilities = PHY_READ(sc, MII_BMSR) & ma->mii_capmask; 171 if (sc->mii_capabilities & BMSR_EXTSTAT) { 172 sc->mii_extcapabilities = PHY_READ(sc, MII_EXTSR); 173 /* No 1000baseT half-duplex support */ 174 sc->mii_extcapabilities &= ~EXTSR_1000THDX; 175 } 176 177 device_printf(dev, " "); 178 if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0 && 179 (sc->mii_extcapabilities & EXTSR_MEDIAMASK) == 0) 180 printf("no media present"); 181 else 182 mii_phy_add_media(sc); 183 printf("\n"); 184 185 MIIBUS_MEDIAINIT(sc->mii_dev); 186 return 0; 187 } 188 189 static int 190 truephy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) 191 { 192 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 193 int bmcr; 194 195 switch (cmd) { 196 case MII_POLLSTAT: 197 /* 198 * If we're not polling our PHY instance, just return. 199 */ 200 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 201 return 0; 202 break; 203 204 case MII_MEDIACHG: 205 /* 206 * If the media indicates a different PHY instance, 207 * isolate ourselves. 208 */ 209 if (IFM_INST(ife->ifm_media) != sc->mii_inst) { 210 bmcr = PHY_READ(sc, MII_BMCR); 211 PHY_WRITE(sc, MII_BMCR, bmcr | BMCR_ISO); 212 return 0; 213 } 214 215 /* 216 * If the interface is not up, don't do anything. 217 */ 218 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 219 break; 220 221 if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) { 222 bmcr = PHY_READ(sc, MII_BMCR) & ~BMCR_AUTOEN; 223 PHY_WRITE(sc, MII_BMCR, bmcr); 224 PHY_WRITE(sc, MII_BMCR, bmcr | BMCR_PDOWN); 225 } 226 227 mii_phy_setmedia(sc); 228 229 if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) { 230 bmcr = PHY_READ(sc, MII_BMCR) & ~BMCR_PDOWN; 231 PHY_WRITE(sc, MII_BMCR, bmcr); 232 233 if (IFM_SUBTYPE(ife->ifm_media) == IFM_1000_T) { 234 PHY_WRITE(sc, MII_BMCR, 235 bmcr | BMCR_AUTOEN | BMCR_STARTNEG); 236 } 237 } 238 break; 239 240 case MII_TICK: 241 /* 242 * If we're not currently selected, just return. 243 */ 244 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 245 return 0; 246 247 if (mii_phy_tick(sc) == EJUSTRETURN) 248 return 0; 249 break; 250 } 251 252 /* Update the media status. */ 253 truephy_status(sc); 254 255 /* Callback if something changed. */ 256 mii_phy_update(sc, cmd); 257 return 0; 258 } 259 260 static void 261 truephy_reset(struct mii_softc *sc) 262 { 263 int i; 264 265 for (i = 0; i < 2; ++i) { 266 PHY_READ(sc, MII_PHYIDR1); 267 PHY_READ(sc, MII_PHYIDR2); 268 269 PHY_READ(sc, TRUEPHY_CTRL); 270 PHY_WRITE(sc, TRUEPHY_CTRL, 271 TRUEPHY_CTRL_DIAG | TRUEPHY_CTRL_RSV1); 272 273 PHY_WRITE(sc, TRUEPHY_INDEX, TRUEPHY_INDEX_MAGIC); 274 PHY_READ(sc, TRUEPHY_DATA); 275 276 PHY_WRITE(sc, TRUEPHY_CTRL, TRUEPHY_CTRL_RSV1); 277 } 278 279 PHY_READ(sc, MII_BMCR); 280 PHY_READ(sc, TRUEPHY_CTRL); 281 PHY_WRITE(sc, MII_BMCR, BMCR_AUTOEN | BMCR_PDOWN | BMCR_S1000); 282 PHY_WRITE(sc, TRUEPHY_CTRL, 283 TRUEPHY_CTRL_DIAG | TRUEPHY_CTRL_RSV1 | TRUEPHY_CTRL_RSV0); 284 285 #define N(arr) (int)(sizeof(arr) / sizeof(arr[0])) 286 287 for (i = 0; i < N(truephy_dspcode); ++i) { 288 const struct truephy_dsp *dsp = &truephy_dspcode[i]; 289 290 PHY_WRITE(sc, TRUEPHY_INDEX, dsp->index); 291 PHY_WRITE(sc, TRUEPHY_DATA, dsp->data); 292 293 PHY_WRITE(sc, TRUEPHY_INDEX, dsp->index); 294 PHY_READ(sc, TRUEPHY_DATA); 295 } 296 297 #undef N 298 299 PHY_READ(sc, MII_BMCR); 300 PHY_READ(sc, TRUEPHY_CTRL); 301 PHY_WRITE(sc, MII_BMCR, BMCR_AUTOEN | BMCR_S1000); 302 PHY_WRITE(sc, TRUEPHY_CTRL, TRUEPHY_CTRL_RSV1); 303 304 mii_phy_reset(sc); 305 306 if (TRUEPHY_FRAMELEN(sc->mii_pdata->mii_ifp->if_mtu) > 2048) { 307 int conf; 308 309 conf = PHY_READ(sc, TRUEPHY_CONF); 310 conf &= ~TRUEPHY_CONF_TXFIFO_MASK; 311 conf |= TRUEPHY_CONF_TXFIFO_24; 312 PHY_WRITE(sc, TRUEPHY_CONF, conf); 313 } 314 } 315 316 static void 317 truephy_status(struct mii_softc *sc) 318 { 319 struct mii_data *mii = sc->mii_pdata; 320 int bmsr, bmcr, sr; 321 322 mii->mii_media_status = IFM_AVALID; 323 mii->mii_media_active = IFM_ETHER; 324 325 sr = PHY_READ(sc, TRUEPHY_SR); 326 bmcr = PHY_READ(sc, MII_BMCR); 327 328 bmsr = PHY_READ(sc, MII_BMSR) | PHY_READ(sc, MII_BMSR); 329 if (bmsr & BMSR_LINK) 330 mii->mii_media_status |= IFM_ACTIVE; 331 332 if (bmcr & BMCR_AUTOEN) { 333 if ((bmsr & BMSR_ACOMP) == 0) { 334 mii->mii_media_active |= IFM_NONE; 335 return; 336 } 337 } 338 339 switch (sr & TRUEPHY_SR_SPD_MASK) { 340 case TRUEPHY_SR_SPD_1000T: 341 mii->mii_media_active |= IFM_1000_T; 342 break; 343 case TRUEPHY_SR_SPD_100TX: 344 mii->mii_media_active |= IFM_100_TX; 345 break; 346 case TRUEPHY_SR_SPD_10T: 347 mii->mii_media_active |= IFM_10_T; 348 break; 349 default: 350 /* XXX will this ever happen? */ 351 printf("invalid media SR %#x\n", sr); 352 mii->mii_media_active |= IFM_NONE; 353 return; 354 } 355 356 if (sr & TRUEPHY_SR_FDX) 357 mii->mii_media_active |= IFM_FDX; 358 else 359 mii->mii_media_active |= IFM_HDX; 360 } 361