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 DEVMETHOD_END 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 mii_phy_funcs truephy_funcs = { 95 truephy_service, 96 truephy_status, 97 truephy_reset 98 }; 99 100 static const struct truephy_dsp { 101 uint16_t index; 102 uint16_t data; 103 } truephy_dspcode[] = { 104 { 0x880b, 0x0926 }, /* AfeIfCreg4B1000Msbs */ 105 { 0x880c, 0x0926 }, /* AfeIfCreg4B100Msbs */ 106 { 0x880d, 0x0926 }, /* AfeIfCreg4B10Msbs */ 107 108 { 0x880e, 0xb4d3 }, /* AfeIfCreg4B1000Lsbs */ 109 { 0x880f, 0xb4d3 }, /* AfeIfCreg4B100Lsbs */ 110 { 0x8810, 0xb4d3 }, /* AfeIfCreg4B10Lsbs */ 111 112 { 0x8805, 0xb03e }, /* AfeIfCreg3B1000Msbs */ 113 { 0x8806, 0xb03e }, /* AfeIfCreg3B100Msbs */ 114 { 0x8807, 0xff00 }, /* AfeIfCreg3B10Msbs */ 115 116 { 0x8808, 0xe090 }, /* AfeIfCreg3B1000Lsbs */ 117 { 0x8809, 0xe110 }, /* AfeIfCreg3B100Lsbs */ 118 { 0x880a, 0x0000 }, /* AfeIfCreg3B10Lsbs */ 119 120 { 0x300d, 1 }, /* DisableNorm */ 121 122 { 0x280c, 0x0180 }, /* LinkHoldEnd */ 123 124 { 0x1c21, 0x0002 }, /* AlphaM */ 125 126 { 0x3821, 6 }, /* FfeLkgTx0 */ 127 { 0x381d, 1 }, /* FfeLkg1g4 */ 128 { 0x381e, 1 }, /* FfeLkg1g5 */ 129 { 0x381f, 1 }, /* FfeLkg1g6 */ 130 { 0x3820, 1 }, /* FfeLkg1g7 */ 131 132 { 0x8402, 0x01f0 }, /* Btinact */ 133 { 0x800e, 20 }, /* LftrainTime */ 134 { 0x800f, 24 }, /* DvguardTime */ 135 { 0x8010, 46 } /* IdlguardTime */ 136 }; 137 138 static int 139 truephy_probe(device_t dev) 140 { 141 142 return (mii_phy_dev_probe(dev, truephys, BUS_PROBE_DEFAULT)); 143 } 144 145 static int 146 truephy_attach(device_t dev) 147 { 148 struct mii_softc *sc; 149 150 sc = device_get_softc(dev); 151 152 mii_phy_dev_attach(dev, MIIF_NOISOLATE | MIIF_NOMANPAUSE, 153 &truephy_funcs, 0); 154 155 PHY_RESET(sc); 156 157 sc->mii_capabilities = PHY_READ(sc, MII_BMSR) & sc->mii_capmask; 158 if (sc->mii_capabilities & BMSR_EXTSTAT) { 159 sc->mii_extcapabilities = PHY_READ(sc, MII_EXTSR); 160 /* No 1000baseT half-duplex support */ 161 sc->mii_extcapabilities &= ~EXTSR_1000THDX; 162 } 163 164 device_printf(dev, " "); 165 mii_phy_add_media(sc); 166 printf("\n"); 167 168 MIIBUS_MEDIAINIT(sc->mii_dev); 169 return (0); 170 } 171 172 static int 173 truephy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) 174 { 175 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 176 int bmcr; 177 178 switch (cmd) { 179 case MII_POLLSTAT: 180 break; 181 182 case MII_MEDIACHG: 183 /* 184 * If the interface is not up, don't do anything. 185 */ 186 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 187 break; 188 189 if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) { 190 bmcr = PHY_READ(sc, MII_BMCR) & ~BMCR_AUTOEN; 191 PHY_WRITE(sc, MII_BMCR, bmcr); 192 PHY_WRITE(sc, MII_BMCR, bmcr | BMCR_PDOWN); 193 } 194 195 mii_phy_setmedia(sc); 196 197 if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) { 198 bmcr = PHY_READ(sc, MII_BMCR) & ~BMCR_PDOWN; 199 PHY_WRITE(sc, MII_BMCR, bmcr); 200 201 if (IFM_SUBTYPE(ife->ifm_media) == IFM_1000_T) { 202 PHY_WRITE(sc, MII_BMCR, 203 bmcr | BMCR_AUTOEN | BMCR_STARTNEG); 204 } 205 } 206 break; 207 208 case MII_TICK: 209 if (mii_phy_tick(sc) == EJUSTRETURN) 210 return (0); 211 break; 212 } 213 214 /* Update the media status. */ 215 PHY_STATUS(sc); 216 217 /* Callback if something changed. */ 218 mii_phy_update(sc, cmd); 219 return (0); 220 } 221 222 static void 223 truephy_reset(struct mii_softc *sc) 224 { 225 int i; 226 227 if (sc->mii_mpd_model == MII_MODEL_AGERE_ET1011) { 228 mii_phy_reset(sc); 229 return; 230 } 231 232 for (i = 0; i < 2; ++i) { 233 PHY_READ(sc, MII_PHYIDR1); 234 PHY_READ(sc, MII_PHYIDR2); 235 236 PHY_READ(sc, TRUEPHY_CTRL); 237 PHY_WRITE(sc, TRUEPHY_CTRL, 238 TRUEPHY_CTRL_DIAG | TRUEPHY_CTRL_RSV1); 239 240 PHY_WRITE(sc, TRUEPHY_INDEX, TRUEPHY_INDEX_MAGIC); 241 PHY_READ(sc, TRUEPHY_DATA); 242 243 PHY_WRITE(sc, TRUEPHY_CTRL, TRUEPHY_CTRL_RSV1); 244 } 245 246 PHY_READ(sc, MII_BMCR); 247 PHY_READ(sc, TRUEPHY_CTRL); 248 PHY_WRITE(sc, MII_BMCR, BMCR_AUTOEN | BMCR_PDOWN | BMCR_S1000); 249 PHY_WRITE(sc, TRUEPHY_CTRL, 250 TRUEPHY_CTRL_DIAG | TRUEPHY_CTRL_RSV1 | TRUEPHY_CTRL_RSV0); 251 252 #define N(arr) (int)(sizeof(arr) / sizeof(arr[0])) 253 254 for (i = 0; i < N(truephy_dspcode); ++i) { 255 const struct truephy_dsp *dsp = &truephy_dspcode[i]; 256 257 PHY_WRITE(sc, TRUEPHY_INDEX, dsp->index); 258 PHY_WRITE(sc, TRUEPHY_DATA, dsp->data); 259 260 PHY_WRITE(sc, TRUEPHY_INDEX, dsp->index); 261 PHY_READ(sc, TRUEPHY_DATA); 262 } 263 264 #undef N 265 266 PHY_READ(sc, MII_BMCR); 267 PHY_READ(sc, TRUEPHY_CTRL); 268 PHY_WRITE(sc, MII_BMCR, BMCR_AUTOEN | BMCR_S1000); 269 PHY_WRITE(sc, TRUEPHY_CTRL, TRUEPHY_CTRL_RSV1); 270 271 mii_phy_reset(sc); 272 273 if (TRUEPHY_FRAMELEN(sc->mii_pdata->mii_ifp->if_mtu) > 2048) { 274 int conf; 275 276 conf = PHY_READ(sc, TRUEPHY_CONF); 277 conf &= ~TRUEPHY_CONF_TXFIFO_MASK; 278 conf |= TRUEPHY_CONF_TXFIFO_24; 279 PHY_WRITE(sc, TRUEPHY_CONF, conf); 280 } 281 } 282 283 static void 284 truephy_status(struct mii_softc *sc) 285 { 286 struct mii_data *mii = sc->mii_pdata; 287 int bmsr, bmcr, sr; 288 289 mii->mii_media_status = IFM_AVALID; 290 mii->mii_media_active = IFM_ETHER; 291 292 sr = PHY_READ(sc, TRUEPHY_SR); 293 bmcr = PHY_READ(sc, MII_BMCR); 294 295 bmsr = PHY_READ(sc, MII_BMSR) | PHY_READ(sc, MII_BMSR); 296 if (bmsr & BMSR_LINK) 297 mii->mii_media_status |= IFM_ACTIVE; 298 299 if (bmcr & BMCR_AUTOEN) { 300 if ((bmsr & BMSR_ACOMP) == 0) { 301 mii->mii_media_active |= IFM_NONE; 302 return; 303 } 304 } 305 306 switch (sr & TRUEPHY_SR_SPD_MASK) { 307 case TRUEPHY_SR_SPD_1000T: 308 mii->mii_media_active |= IFM_1000_T; 309 break; 310 case TRUEPHY_SR_SPD_100TX: 311 mii->mii_media_active |= IFM_100_TX; 312 break; 313 case TRUEPHY_SR_SPD_10T: 314 mii->mii_media_active |= IFM_10_T; 315 break; 316 default: 317 /* XXX will this ever happen? */ 318 printf("invalid media SR %#x\n", sr); 319 mii->mii_media_active |= IFM_NONE; 320 return; 321 } 322 323 if (sr & TRUEPHY_SR_FDX) 324 mii->mii_media_active |= IFM_FDX | mii_phy_flowstatus(sc); 325 else 326 mii->mii_media_active |= IFM_HDX; 327 } 328