1 /* $NetBSD: if_ex_pci.c,v 1.17 2001/07/08 18:02:28 thorpej Exp $ */ 2 3 /*- 4 * Copyright (c) 1998 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Frank van der Linden; Jason R. Thorpe of the Numerical Aerospace 9 * Simulation Facility, NASA Ames Research Center. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 3. All advertising materials mentioning features or use of this software 20 * must display the following acknowledgement: 21 * This product includes software developed by the NetBSD 22 * Foundation, Inc. and its contributors. 23 * 4. Neither the name of The NetBSD Foundation nor the names of its 24 * contributors may be used to endorse or promote products derived 25 * from this software without specific prior written permission. 26 * 27 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 28 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 29 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 30 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 31 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 32 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 33 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 34 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 35 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 36 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 37 * POSSIBILITY OF SUCH DAMAGE. 38 */ 39 40 #include <sys/param.h> 41 #include <sys/systm.h> 42 #include <sys/mbuf.h> 43 #include <sys/socket.h> 44 #include <sys/ioctl.h> 45 #include <sys/errno.h> 46 #include <sys/syslog.h> 47 #include <sys/select.h> 48 #include <sys/device.h> 49 50 #include <net/if.h> 51 #include <net/if_dl.h> 52 #include <net/if_ether.h> 53 #include <net/if_media.h> 54 55 #include <machine/cpu.h> 56 #include <machine/bus.h> 57 #include <machine/intr.h> 58 59 #include <dev/mii/miivar.h> 60 #include <dev/mii/mii.h> 61 62 #include <dev/ic/elink3var.h> 63 #include <dev/ic/elink3reg.h> 64 #include <dev/ic/elinkxlreg.h> 65 #include <dev/ic/elinkxlvar.h> 66 67 #include <dev/pci/pcivar.h> 68 #include <dev/pci/pcireg.h> 69 #include <dev/pci/pcidevs.h> 70 71 struct ex_pci_softc { 72 struct ex_softc sc_ex; 73 pci_chipset_tag_t sc_chiptag; 74 pcitag_t sc_pcitag; 75 }; 76 77 /* 78 * PCI constants. 79 * XXX These should be in a common file! 80 */ 81 #define PCI_CONN 0x48 /* Connector type */ 82 #define PCI_CBIO 0x10 /* Configuration Base IO Address */ 83 #define PCI_POWERCTL 0xe0 84 #define PCI_FUNCMEM 0x18 85 86 #define PCI_INTRACK 0x00008000 87 88 int ex_pci_match __P((struct device *, struct cfdata *, void *)); 89 void ex_pci_attach __P((struct device *, struct device *, void *)); 90 void ex_pci_intr_ack __P((struct ex_softc *)); 91 92 struct cfattach ex_pci_ca = { 93 sizeof(struct ex_pci_softc), ex_pci_match, ex_pci_attach 94 }; 95 96 const struct ex_pci_product { 97 u_int32_t epp_prodid; /* PCI product ID */ 98 int epp_flags; /* initial softc flags */ 99 const char *epp_name; /* device name */ 100 } ex_pci_products[] = { 101 { PCI_PRODUCT_3COM_3C900TPO, 0, 102 "3c900-TPO Ethernet" }, 103 { PCI_PRODUCT_3COM_3C900COMBO, 0, 104 "3c900-COMBO Ethernet" }, 105 106 { PCI_PRODUCT_3COM_3C905TX, EX_CONF_MII, 107 "3c905-TX 10/100 Ethernet" }, 108 { PCI_PRODUCT_3COM_3C905T4, EX_CONF_MII, 109 "3c905-T4 10/100 Ethernet" }, 110 111 { PCI_PRODUCT_3COM_3C900BTPO, EX_CONF_90XB, 112 "3c900B-TPO Ethernet" }, 113 { PCI_PRODUCT_3COM_3C900BCOMBO, EX_CONF_90XB, 114 "3c900B-COMBO Ethernet" }, 115 { PCI_PRODUCT_3COM_3C900BTPC, EX_CONF_90XB, 116 "3c900B-TPC Ethernet" }, 117 118 { PCI_PRODUCT_3COM_3C905BTX, EX_CONF_90XB|EX_CONF_MII|EX_CONF_INTPHY, 119 "3c905B-TX 10/100 Ethernet" }, 120 { PCI_PRODUCT_3COM_3C905BT4, EX_CONF_90XB|EX_CONF_MII, 121 "3c905B-T4 10/100 Ethernet" }, 122 { PCI_PRODUCT_3COM_3C905BCOMBO, EX_CONF_90XB/*|EX_CONF_MII|EX_CONF_INTPHY*/, 123 "3c905B-COMBO 10/100 Ethernet" }, 124 { PCI_PRODUCT_3COM_3C905BFX, EX_CONF_90XB, 125 "3c905B-FX 10/100 Ethernet" }, 126 127 /* XXX Internal PHY? */ 128 { PCI_PRODUCT_3COM_3C980SRV, EX_CONF_90XB, 129 "3c980 Server Adapter 10/100 Ethernet" }, 130 { PCI_PRODUCT_3COM_3C980CTXM, EX_CONF_90XB, 131 "3c980C-TXM 10/100 Ethernet" }, 132 133 { PCI_PRODUCT_3COM_3C905CTX, EX_CONF_90XB|EX_CONF_MII, 134 "3c905C-TX 10/100 Ethernet with mngmt" }, 135 136 { PCI_PRODUCT_3COM_3C450TX, EX_CONF_90XB, 137 "3c450-TX 10/100 Ethernet" }, 138 139 { PCI_PRODUCT_3COM_3CSOHO100TX, EX_CONF_90XB, 140 "3cSOHO100-TX 10/100 Ethernet" }, 141 142 { PCI_PRODUCT_3COM_3C555, 143 EX_CONF_90XB | EX_CONF_MII | EX_CONF_EEPROM_OFF | 144 EX_CONF_EEPROM_8BIT, 145 "3c555 MiniPCI 10/100 Ethernet" }, 146 147 { PCI_PRODUCT_3COM_3C556, 148 EX_CONF_90XB | EX_CONF_MII | EX_CONF_EEPROM_OFF | 149 EX_CONF_PCI_FUNCREG | EX_CONF_RESETHACK | EX_CONF_INV_LED_POLARITY | 150 EX_CONF_PHY_POWER | EX_CONF_EEPROM_8BIT, 151 "3c556 MiniPCI 10/100 Ethernet" }, 152 153 { PCI_PRODUCT_3COM_3C556B, 154 EX_CONF_90XB | EX_CONF_MII | EX_CONF_EEPROM_OFF | 155 EX_CONF_PCI_FUNCREG | EX_CONF_RESETHACK | EX_CONF_INV_LED_POLARITY | 156 EX_CONF_PHY_POWER, 157 "3c556B MiniPCI 10/100 Ethernet" }, 158 159 { 0, 0, 160 NULL }, 161 }; 162 163 const struct ex_pci_product *ex_pci_lookup 164 __P((const struct pci_attach_args *)); 165 166 const struct ex_pci_product * 167 ex_pci_lookup(pa) 168 const struct pci_attach_args *pa; 169 { 170 const struct ex_pci_product *epp; 171 172 if (PCI_VENDOR(pa->pa_id) != PCI_VENDOR_3COM) 173 return (NULL); 174 175 for (epp = ex_pci_products; epp->epp_name != NULL; epp++) 176 if (PCI_PRODUCT(pa->pa_id) == epp->epp_prodid) 177 return (epp); 178 return (NULL); 179 } 180 181 int 182 ex_pci_match(parent, match, aux) 183 struct device *parent; 184 struct cfdata *match; 185 void *aux; 186 { 187 struct pci_attach_args *pa = (struct pci_attach_args *) aux; 188 189 if (ex_pci_lookup(pa) != NULL) 190 return (2); /* beat ep_pci */ 191 192 return (0); 193 } 194 195 void 196 ex_pci_attach(parent, self, aux) 197 struct device *parent, *self; 198 void *aux; 199 { 200 struct ex_softc *sc = (void *)self; 201 struct ex_pci_softc *psc = (void *)self; 202 struct pci_attach_args *pa = aux; 203 pci_chipset_tag_t pc = pa->pa_pc; 204 pci_intr_handle_t ih; 205 const struct ex_pci_product *epp; 206 const char *intrstr = NULL; 207 int rev, pmreg; 208 pcireg_t reg; 209 210 if (pci_mapreg_map(pa, PCI_CBIO, PCI_MAPREG_TYPE_IO, 0, 211 &sc->sc_iot, &sc->sc_ioh, NULL, NULL)) { 212 printf(": can't map i/o space\n"); 213 return; 214 } 215 216 epp = ex_pci_lookup(pa); 217 if (epp == NULL) { 218 printf("\n"); 219 panic("ex_pci_attach: impossible"); 220 } 221 222 rev = PCI_REVISION(pci_conf_read(pc, pa->pa_tag, PCI_CLASS_REG)); 223 printf(": 3Com %s (rev. 0x%x)\n", epp->epp_name, rev); 224 225 sc->enable = NULL; 226 sc->disable = NULL; 227 sc->enabled = 1; 228 229 sc->sc_dmat = pa->pa_dmat; 230 231 sc->ex_bustype = EX_BUS_PCI; 232 sc->ex_conf = epp->epp_flags; 233 234 /* Enable the card. */ 235 pci_conf_write(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, 236 pci_conf_read(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG) | 237 PCI_COMMAND_MASTER_ENABLE); 238 239 /* Get it out of power save mode if needed (BIOS bugs) */ 240 if (pci_get_capability(pc, pa->pa_tag, PCI_CAP_PWRMGMT, &pmreg, 0)) { 241 reg = pci_conf_read(pc, pa->pa_tag, pmreg + 4) & 0x3; 242 if (reg == 3) { 243 /* 244 * The card has lost all configuration data in 245 * this state, so punt. 246 */ 247 printf("%s: unable to wake up from power state D3\n", 248 sc->sc_dev.dv_xname); 249 return; 250 } 251 if (reg != 0) { 252 printf("%s: waking up from power state D%d\n", 253 sc->sc_dev.dv_xname, reg); 254 pci_conf_write(pc, pa->pa_tag, pmreg + 4, 0); 255 } 256 } 257 258 /* Map and establish the interrupt. */ 259 if (pci_intr_map(pa, &ih)) { 260 printf("%s: couldn't map interrupt\n", sc->sc_dev.dv_xname); 261 return; 262 } 263 264 if (sc->ex_conf & EX_CONF_PCI_FUNCREG) { 265 sc->intr_ack = ex_pci_intr_ack; 266 psc->sc_chiptag = pa->pa_pc; 267 psc->sc_pcitag = pa->pa_tag; 268 } 269 270 intrstr = pci_intr_string(pc, ih); 271 sc->sc_ih = pci_intr_establish(pc, ih, IPL_NET, ex_intr, sc); 272 if (sc->sc_ih == NULL) { 273 printf("%s: couldn't establish interrupt", 274 sc->sc_dev.dv_xname); 275 if (intrstr != NULL) 276 printf(" at %s", intrstr); 277 printf("\n"); 278 return; 279 } 280 printf("%s: interrupting at %s\n", sc->sc_dev.dv_xname, intrstr); 281 282 ex_config(sc); 283 } 284 285 void 286 ex_pci_intr_ack(sc) 287 struct ex_softc *sc; 288 { 289 struct ex_pci_softc *psc = (struct ex_pci_softc *)sc; 290 291 pci_conf_write(psc->sc_chiptag, psc->sc_pcitag, PCI_FUNCMEM + 4, 292 PCI_INTRACK); 293 } 294