if_ex_pci.c revision 1.15.2.2
1 /* $NetBSD: if_ex_pci.c,v 1.15.2.2 2001/08/24 00:10:03 nathanw 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 74 /* PCI function status space. 556,556B requests it. */ 75 bus_space_tag_t sc_funct; 76 bus_space_handle_t sc_funch; 77 78 }; 79 80 /* 81 * PCI constants. 82 * XXX These should be in a common file! 83 */ 84 #define PCI_CONN 0x48 /* Connector type */ 85 #define PCI_CBIO 0x10 /* Configuration Base IO Address */ 86 #define PCI_POWERCTL 0xe0 87 #define PCI_FUNCMEM 0x18 88 89 #define PCI_INTR 4 90 #define PCI_INTRACK 0x00008000 91 92 int ex_pci_match __P((struct device *, struct cfdata *, void *)); 93 void ex_pci_attach __P((struct device *, struct device *, void *)); 94 void ex_pci_intr_ack __P((struct ex_softc *)); 95 96 struct cfattach ex_pci_ca = { 97 sizeof(struct ex_pci_softc), ex_pci_match, ex_pci_attach 98 }; 99 100 const struct ex_pci_product { 101 u_int32_t epp_prodid; /* PCI product ID */ 102 int epp_flags; /* initial softc flags */ 103 const char *epp_name; /* device name */ 104 } ex_pci_products[] = { 105 { PCI_PRODUCT_3COM_3C900TPO, 0, 106 "3c900-TPO Ethernet" }, 107 { PCI_PRODUCT_3COM_3C900COMBO, 0, 108 "3c900-COMBO Ethernet" }, 109 110 { PCI_PRODUCT_3COM_3C905TX, EX_CONF_MII, 111 "3c905-TX 10/100 Ethernet" }, 112 { PCI_PRODUCT_3COM_3C905T4, EX_CONF_MII, 113 "3c905-T4 10/100 Ethernet" }, 114 115 { PCI_PRODUCT_3COM_3C900BTPO, EX_CONF_90XB, 116 "3c900B-TPO Ethernet" }, 117 { PCI_PRODUCT_3COM_3C900BCOMBO, EX_CONF_90XB, 118 "3c900B-COMBO Ethernet" }, 119 { PCI_PRODUCT_3COM_3C900BTPC, EX_CONF_90XB, 120 "3c900B-TPC Ethernet" }, 121 122 { PCI_PRODUCT_3COM_3C905BTX, EX_CONF_90XB|EX_CONF_MII|EX_CONF_INTPHY, 123 "3c905B-TX 10/100 Ethernet" }, 124 { PCI_PRODUCT_3COM_3C905BT4, EX_CONF_90XB|EX_CONF_MII, 125 "3c905B-T4 10/100 Ethernet" }, 126 { PCI_PRODUCT_3COM_3C905BCOMBO, EX_CONF_90XB/*|EX_CONF_MII|EX_CONF_INTPHY*/, 127 "3c905B-COMBO 10/100 Ethernet" }, 128 { PCI_PRODUCT_3COM_3C905BFX, EX_CONF_90XB, 129 "3c905B-FX 10/100 Ethernet" }, 130 131 /* XXX Internal PHY? */ 132 { PCI_PRODUCT_3COM_3C980SRV, EX_CONF_90XB, 133 "3c980 Server Adapter 10/100 Ethernet" }, 134 { PCI_PRODUCT_3COM_3C980CTXM, EX_CONF_90XB, 135 "3c980C-TXM 10/100 Ethernet" }, 136 137 { PCI_PRODUCT_3COM_3C905CTX, EX_CONF_90XB|EX_CONF_MII, 138 "3c905C-TX 10/100 Ethernet with mngmt" }, 139 140 { PCI_PRODUCT_3COM_3C450TX, EX_CONF_90XB, 141 "3c450-TX 10/100 Ethernet" }, 142 143 { PCI_PRODUCT_3COM_3CSOHO100TX, EX_CONF_90XB, 144 "3cSOHO100-TX 10/100 Ethernet" }, 145 146 { PCI_PRODUCT_3COM_3C555, 147 EX_CONF_90XB | EX_CONF_MII | EX_CONF_EEPROM_OFF | 148 EX_CONF_EEPROM_8BIT, 149 "3c555 MiniPCI 10/100 Ethernet" }, 150 151 { PCI_PRODUCT_3COM_3C556, 152 EX_CONF_90XB | EX_CONF_MII | EX_CONF_EEPROM_OFF | 153 EX_CONF_PCI_FUNCREG | EX_CONF_RESETHACK | EX_CONF_INV_LED_POLARITY | 154 EX_CONF_PHY_POWER | EX_CONF_EEPROM_8BIT, 155 "3c556 MiniPCI 10/100 Ethernet" }, 156 157 { PCI_PRODUCT_3COM_3C556B, 158 EX_CONF_90XB | EX_CONF_MII | EX_CONF_EEPROM_OFF | 159 EX_CONF_PCI_FUNCREG | EX_CONF_RESETHACK | EX_CONF_INV_LED_POLARITY | 160 EX_CONF_PHY_POWER, 161 "3c556B MiniPCI 10/100 Ethernet" }, 162 163 { 0, 0, 164 NULL }, 165 }; 166 167 const struct ex_pci_product *ex_pci_lookup 168 __P((const struct pci_attach_args *)); 169 170 const struct ex_pci_product * 171 ex_pci_lookup(pa) 172 const struct pci_attach_args *pa; 173 { 174 const struct ex_pci_product *epp; 175 176 if (PCI_VENDOR(pa->pa_id) != PCI_VENDOR_3COM) 177 return (NULL); 178 179 for (epp = ex_pci_products; epp->epp_name != NULL; epp++) 180 if (PCI_PRODUCT(pa->pa_id) == epp->epp_prodid) 181 return (epp); 182 return (NULL); 183 } 184 185 int 186 ex_pci_match(parent, match, aux) 187 struct device *parent; 188 struct cfdata *match; 189 void *aux; 190 { 191 struct pci_attach_args *pa = (struct pci_attach_args *) aux; 192 193 if (ex_pci_lookup(pa) != NULL) 194 return (2); /* beat ep_pci */ 195 196 return (0); 197 } 198 199 void 200 ex_pci_attach(parent, self, aux) 201 struct device *parent, *self; 202 void *aux; 203 { 204 struct ex_softc *sc = (void *)self; 205 struct ex_pci_softc *psc = (void *)self; 206 struct pci_attach_args *pa = aux; 207 pci_chipset_tag_t pc = pa->pa_pc; 208 pci_intr_handle_t ih; 209 const struct ex_pci_product *epp; 210 const char *intrstr = NULL; 211 int rev, pmreg; 212 pcireg_t reg; 213 214 if (pci_mapreg_map(pa, PCI_CBIO, PCI_MAPREG_TYPE_IO, 0, 215 &sc->sc_iot, &sc->sc_ioh, NULL, NULL)) { 216 printf(": can't map i/o space\n"); 217 return; 218 } 219 220 epp = ex_pci_lookup(pa); 221 if (epp == NULL) { 222 printf("\n"); 223 panic("ex_pci_attach: impossible"); 224 } 225 226 rev = PCI_REVISION(pci_conf_read(pc, pa->pa_tag, PCI_CLASS_REG)); 227 printf(": 3Com %s (rev. 0x%x)\n", epp->epp_name, rev); 228 229 sc->enable = NULL; 230 sc->disable = NULL; 231 sc->enabled = 1; 232 233 sc->sc_dmat = pa->pa_dmat; 234 235 sc->ex_bustype = EX_BUS_PCI; 236 sc->ex_conf = epp->epp_flags; 237 238 /* Enable the card. */ 239 pci_conf_write(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, 240 pci_conf_read(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG) | 241 PCI_COMMAND_MASTER_ENABLE); 242 243 if (sc->ex_conf & EX_CONF_PCI_FUNCREG) { 244 /* Map PCI function status window. */ 245 if (pci_mapreg_map(pa, PCI_FUNCMEM, PCI_MAPREG_TYPE_MEM, 0, 246 &psc->sc_funct, &psc->sc_funch, NULL, NULL)) { 247 printf("%s: unable to map function status window\n", 248 sc->sc_dev.dv_xname); 249 return; 250 } 251 sc->intr_ack = ex_pci_intr_ack; 252 } 253 254 /* Get it out of power save mode if needed (BIOS bugs) */ 255 if (pci_get_capability(pc, pa->pa_tag, PCI_CAP_PWRMGMT, &pmreg, 0)) { 256 reg = pci_conf_read(pc, pa->pa_tag, pmreg + 4) & 0x3; 257 if (reg == 3) { 258 /* 259 * The card has lost all configuration data in 260 * this state, so punt. 261 */ 262 printf("%s: unable to wake up from power state D3\n", 263 sc->sc_dev.dv_xname); 264 return; 265 } 266 if (reg != 0) { 267 printf("%s: waking up from power state D%d\n", 268 sc->sc_dev.dv_xname, reg); 269 pci_conf_write(pc, pa->pa_tag, pmreg + 4, 0); 270 } 271 } 272 273 /* Map and establish the interrupt. */ 274 if (pci_intr_map(pa, &ih)) { 275 printf("%s: couldn't map interrupt\n", sc->sc_dev.dv_xname); 276 return; 277 } 278 279 intrstr = pci_intr_string(pc, ih); 280 sc->sc_ih = pci_intr_establish(pc, ih, IPL_NET, ex_intr, sc); 281 if (sc->sc_ih == NULL) { 282 printf("%s: couldn't establish interrupt", 283 sc->sc_dev.dv_xname); 284 if (intrstr != NULL) 285 printf(" at %s", intrstr); 286 printf("\n"); 287 return; 288 } 289 printf("%s: interrupting at %s\n", sc->sc_dev.dv_xname, intrstr); 290 291 ex_config(sc); 292 293 if (sc->ex_conf & EX_CONF_PCI_FUNCREG) 294 bus_space_write_4(psc->sc_funct, psc->sc_funch, PCI_INTR, 295 PCI_INTRACK); 296 } 297 298 void 299 ex_pci_intr_ack(sc) 300 struct ex_softc *sc; 301 { 302 struct ex_pci_softc *psc = (struct ex_pci_softc *)sc; 303 304 bus_space_write_4(psc->sc_funct, psc->sc_funch, PCI_INTR, 305 PCI_INTRACK); 306 } 307
Indexes created Wed Sep 24 22:09:59 GMT 2025