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, ET1011C), 80 MII_PHY_END 81 }; 82 83 static devclass_t truephy_devclass; 84 85 static driver_t truephy_driver = { 86 "truephy", 87 truephy_methods, 88 sizeof(struct mii_softc) 89 }; 90 91 DRIVER_MODULE(truephy, miibus, truephy_driver, truephy_devclass, 0, 0); 92 93 static const struct truephy_dsp { 94 uint16_t index; 95 uint16_t data; 96 } truephy_dspcode[] = { 97 { 0x880b, 0x0926 }, /* AfeIfCreg4B1000Msbs */ 98 { 0x880c, 0x0926 }, /* AfeIfCreg4B100Msbs */ 99 { 0x880d, 0x0926 }, /* AfeIfCreg4B10Msbs */ 100 101 { 0x880e, 0xb4d3 }, /* AfeIfCreg4B1000Lsbs */ 102 { 0x880f, 0xb4d3 }, /* AfeIfCreg4B100Lsbs */ 103 { 0x8810, 0xb4d3 }, /* AfeIfCreg4B10Lsbs */ 104 105 { 0x8805, 0xb03e }, /* AfeIfCreg3B1000Msbs */ 106 { 0x8806, 0xb03e }, /* AfeIfCreg3B100Msbs */ 107 { 0x8807, 0xff00 }, /* AfeIfCreg3B10Msbs */ 108 109 { 0x8808, 0xe090 }, /* AfeIfCreg3B1000Lsbs */ 110 { 0x8809, 0xe110 }, /* AfeIfCreg3B100Lsbs */ 111 { 0x880a, 0x0000 }, /* AfeIfCreg3B10Lsbs */ 112 113 { 0x300d, 1 }, /* DisableNorm */ 114 115 { 0x280c, 0x0180 }, /* LinkHoldEnd */ 116 117 { 0x1c21, 0x0002 }, /* AlphaM */ 118 119 { 0x3821, 6 }, /* FfeLkgTx0 */ 120 { 0x381d, 1 }, /* FfeLkg1g4 */ 121 { 0x381e, 1 }, /* FfeLkg1g5 */ 122 { 0x381f, 1 }, /* FfeLkg1g6 */ 123 { 0x3820, 1 }, /* FfeLkg1g7 */ 124 125 { 0x8402, 0x01f0 }, /* Btinact */ 126 { 0x800e, 20 }, /* LftrainTime */ 127 { 0x800f, 24 }, /* DvguardTime */ 128 { 0x8010, 46 } /* IdlguardTime */ 129 }; 130 131 static int 132 truephy_probe(device_t dev) 133 { 134 135 return (mii_phy_dev_probe(dev, truephys, BUS_PROBE_DEFAULT)); 136 } 137 138 static int 139 truephy_attach(device_t dev) 140 { 141 struct mii_softc *sc; 142 struct mii_attach_args *ma; 143 struct mii_data *mii; 144 145 sc = device_get_softc(dev); 146 ma = device_get_ivars(dev); 147 148 sc->mii_phy = ma->mii_phyno; 149 if (sc->mii_anegticks == 0) 150 sc->mii_anegticks = MII_ANEGTICKS; 151 sc->mii_dev = device_get_parent(dev); 152 mii = device_get_softc(sc->mii_dev); 153 LIST_INSERT_HEAD(&mii->mii_phys, sc, mii_list); 154 155 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 mii->mii_instance++; 163 164 truephy_reset(sc); 165 166 sc->mii_capabilities = PHY_READ(sc, MII_BMSR) & ma->mii_capmask; 167 if (sc->mii_capabilities & BMSR_EXTSTAT) { 168 sc->mii_extcapabilities = PHY_READ(sc, MII_EXTSR); 169 /* No 1000baseT half-duplex support */ 170 sc->mii_extcapabilities &= ~EXTSR_1000THDX; 171 } 172 173 device_printf(dev, " "); 174 if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0 && 175 (sc->mii_extcapabilities & EXTSR_MEDIAMASK) == 0) 176 printf("no media present"); 177 else 178 mii_phy_add_media(sc); 179 printf("\n"); 180 181 MIIBUS_MEDIAINIT(sc->mii_dev); 182 return 0; 183 } 184 185 static int 186 truephy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) 187 { 188 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 189 int bmcr; 190 191 switch (cmd) { 192 case MII_POLLSTAT: 193 /* 194 * If we're not polling our PHY instance, just return. 195 */ 196 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 197 return 0; 198 break; 199 200 case MII_MEDIACHG: 201 /* 202 * If the media indicates a different PHY instance, 203 * isolate ourselves. 204 */ 205 if (IFM_INST(ife->ifm_media) != sc->mii_inst) { 206 bmcr = PHY_READ(sc, MII_BMCR); 207 PHY_WRITE(sc, MII_BMCR, bmcr | BMCR_ISO); 208 return 0; 209 } 210 211 /* 212 * If the interface is not up, don't do anything. 213 */ 214 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 215 break; 216 217 if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) { 218 bmcr = PHY_READ(sc, MII_BMCR) & ~BMCR_AUTOEN; 219 PHY_WRITE(sc, MII_BMCR, bmcr); 220 PHY_WRITE(sc, MII_BMCR, bmcr | BMCR_PDOWN); 221 } 222 223 mii_phy_setmedia(sc); 224 225 if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) { 226 bmcr = PHY_READ(sc, MII_BMCR) & ~BMCR_PDOWN; 227 PHY_WRITE(sc, MII_BMCR, bmcr); 228 229 if (IFM_SUBTYPE(ife->ifm_media) == IFM_1000_T) { 230 PHY_WRITE(sc, MII_BMCR, 231 bmcr | BMCR_AUTOEN | BMCR_STARTNEG); 232 } 233 } 234 break; 235 236 case MII_TICK: 237 /* 238 * If we're not currently selected, just return. 239 */ 240 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 241 return 0; 242 243 if (mii_phy_tick(sc) == EJUSTRETURN) 244 return 0; 245 break; 246 } 247 248 /* Update the media status. */ 249 truephy_status(sc); 250 251 /* Callback if something changed. */ 252 mii_phy_update(sc, cmd); 253 return 0; 254 } 255 256 static void 257 truephy_reset(struct mii_softc *sc) 258 { 259 int i; 260 261 for (i = 0; i < 2; ++i) { 262 PHY_READ(sc, MII_PHYIDR1); 263 PHY_READ(sc, MII_PHYIDR2); 264 265 PHY_READ(sc, TRUEPHY_CTRL); 266 PHY_WRITE(sc, TRUEPHY_CTRL, 267 TRUEPHY_CTRL_DIAG | TRUEPHY_CTRL_RSV1); 268 269 PHY_WRITE(sc, TRUEPHY_INDEX, TRUEPHY_INDEX_MAGIC); 270 PHY_READ(sc, TRUEPHY_DATA); 271 272 PHY_WRITE(sc, TRUEPHY_CTRL, TRUEPHY_CTRL_RSV1); 273 } 274 275 PHY_READ(sc, MII_BMCR); 276 PHY_READ(sc, TRUEPHY_CTRL); 277 PHY_WRITE(sc, MII_BMCR, BMCR_AUTOEN | BMCR_PDOWN | BMCR_S1000); 278 PHY_WRITE(sc, TRUEPHY_CTRL, 279 TRUEPHY_CTRL_DIAG | TRUEPHY_CTRL_RSV1 | TRUEPHY_CTRL_RSV0); 280 281 #define N(arr) (int)(sizeof(arr) / sizeof(arr[0])) 282 283 for (i = 0; i < N(truephy_dspcode); ++i) { 284 const struct truephy_dsp *dsp = &truephy_dspcode[i]; 285 286 PHY_WRITE(sc, TRUEPHY_INDEX, dsp->index); 287 PHY_WRITE(sc, TRUEPHY_DATA, dsp->data); 288 289 PHY_WRITE(sc, TRUEPHY_INDEX, dsp->index); 290 PHY_READ(sc, TRUEPHY_DATA); 291 } 292 293 #undef N 294 295 PHY_READ(sc, MII_BMCR); 296 PHY_READ(sc, TRUEPHY_CTRL); 297 PHY_WRITE(sc, MII_BMCR, BMCR_AUTOEN | BMCR_S1000); 298 PHY_WRITE(sc, TRUEPHY_CTRL, TRUEPHY_CTRL_RSV1); 299 300 mii_phy_reset(sc); 301 302 if (TRUEPHY_FRAMELEN(sc->mii_pdata->mii_ifp->if_mtu) > 2048) { 303 int conf; 304 305 conf = PHY_READ(sc, TRUEPHY_CONF); 306 conf &= ~TRUEPHY_CONF_TXFIFO_MASK; 307 conf |= TRUEPHY_CONF_TXFIFO_24; 308 PHY_WRITE(sc, TRUEPHY_CONF, conf); 309 } 310 } 311 312 static void 313 truephy_status(struct mii_softc *sc) 314 { 315 struct mii_data *mii = sc->mii_pdata; 316 int bmsr, bmcr, sr; 317 318 mii->mii_media_status = IFM_AVALID; 319 mii->mii_media_active = IFM_ETHER; 320 321 sr = PHY_READ(sc, TRUEPHY_SR); 322 bmcr = PHY_READ(sc, MII_BMCR); 323 324 bmsr = PHY_READ(sc, MII_BMSR) | PHY_READ(sc, MII_BMSR); 325 if (bmsr & BMSR_LINK) 326 mii->mii_media_status |= IFM_ACTIVE; 327 328 if (bmcr & BMCR_AUTOEN) { 329 if ((bmsr & BMSR_ACOMP) == 0) { 330 mii->mii_media_active |= IFM_NONE; 331 return; 332 } 333 } 334 335 switch (sr & TRUEPHY_SR_SPD_MASK) { 336 case TRUEPHY_SR_SPD_1000T: 337 mii->mii_media_active |= IFM_1000_T; 338 break; 339 case TRUEPHY_SR_SPD_100TX: 340 mii->mii_media_active |= IFM_100_TX; 341 break; 342 case TRUEPHY_SR_SPD_10T: 343 mii->mii_media_active |= IFM_10_T; 344 break; 345 default: 346 /* XXX will this ever happen? */ 347 printf("invalid media SR %#x\n", sr); 348 mii->mii_media_active |= IFM_NONE; 349 return; 350 } 351 352 if (sr & TRUEPHY_SR_FDX) 353 mii->mii_media_active |= IFM_FDX; 354 else 355 mii->mii_media_active |= IFM_HDX; 356 } 357