if_ex_pci.c revision 1.15.2.3
1 /* $NetBSD: if_ex_pci.c,v 1.15.2.3 2001/11/14 19:15:15 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/cdefs.h> 41 __KERNEL_RCSID(0, "$NetBSD: if_ex_pci.c,v 1.15.2.3 2001/11/14 19:15:15 nathanw Exp $"); 42 43 #include <sys/param.h> 44 #include <sys/systm.h> 45 #include <sys/mbuf.h> 46 #include <sys/socket.h> 47 #include <sys/ioctl.h> 48 #include <sys/errno.h> 49 #include <sys/syslog.h> 50 #include <sys/select.h> 51 #include <sys/device.h> 52 53 #include <net/if.h> 54 #include <net/if_dl.h> 55 #include <net/if_ether.h> 56 #include <net/if_media.h> 57 58 #include <machine/cpu.h> 59 #include <machine/bus.h> 60 #include <machine/intr.h> 61 62 #include <dev/mii/miivar.h> 63 #include <dev/mii/mii.h> 64 65 #include <dev/ic/elink3var.h> 66 #include <dev/ic/elink3reg.h> 67 #include <dev/ic/elinkxlreg.h> 68 #include <dev/ic/elinkxlvar.h> 69 70 #include <dev/pci/pcivar.h> 71 #include <dev/pci/pcireg.h> 72 #include <dev/pci/pcidevs.h> 73 74 struct ex_pci_softc { 75 struct ex_softc sc_ex; 76 77 /* PCI function status space. 556,556B requests it. */ 78 bus_space_tag_t sc_funct; 79 bus_space_handle_t sc_funch; 80 81 }; 82 83 /* 84 * PCI constants. 85 * XXX These should be in a common file! 86 */ 87 #define PCI_CONN 0x48 /* Connector type */ 88 #define PCI_CBIO 0x10 /* Configuration Base IO Address */ 89 #define PCI_POWERCTL 0xe0 90 #define PCI_FUNCMEM 0x18 91 92 #define PCI_INTR 4 93 #define PCI_INTRACK 0x00008000 94 95 int ex_pci_match __P((struct device *, struct cfdata *, void *)); 96 void ex_pci_attach __P((struct device *, struct device *, void *)); 97 void ex_pci_intr_ack __P((struct ex_softc *)); 98 99 struct cfattach ex_pci_ca = { 100 sizeof(struct ex_pci_softc), ex_pci_match, ex_pci_attach 101 }; 102 103 const struct ex_pci_product { 104 u_int32_t epp_prodid; /* PCI product ID */ 105 int epp_flags; /* initial softc flags */ 106 const char *epp_name; /* device name */ 107 } ex_pci_products[] = { 108 { PCI_PRODUCT_3COM_3C900TPO, 0, 109 "3c900-TPO Ethernet" }, 110 { PCI_PRODUCT_3COM_3C900COMBO, 0, 111 "3c900-COMBO Ethernet" }, 112 113 { PCI_PRODUCT_3COM_3C905TX, EX_CONF_MII, 114 "3c905-TX 10/100 Ethernet" }, 115 { PCI_PRODUCT_3COM_3C905T4, EX_CONF_MII, 116 "3c905-T4 10/100 Ethernet" }, 117 118 { PCI_PRODUCT_3COM_3C900BTPO, EX_CONF_90XB, 119 "3c900B-TPO Ethernet" }, 120 { PCI_PRODUCT_3COM_3C900BCOMBO, EX_CONF_90XB, 121 "3c900B-COMBO Ethernet" }, 122 { PCI_PRODUCT_3COM_3C900BTPC, EX_CONF_90XB, 123 "3c900B-TPC Ethernet" }, 124 125 { PCI_PRODUCT_3COM_3C905BTX, EX_CONF_90XB|EX_CONF_MII|EX_CONF_INTPHY, 126 "3c905B-TX 10/100 Ethernet" }, 127 { PCI_PRODUCT_3COM_3C905BT4, EX_CONF_90XB|EX_CONF_MII, 128 "3c905B-T4 10/100 Ethernet" }, 129 { PCI_PRODUCT_3COM_3C905BCOMBO, EX_CONF_90XB/*|EX_CONF_MII|EX_CONF_INTPHY*/, 130 "3c905B-COMBO 10/100 Ethernet" }, 131 { PCI_PRODUCT_3COM_3C905BFX, EX_CONF_90XB, 132 "3c905B-FX 10/100 Ethernet" }, 133 134 /* XXX Internal PHY? */ 135 { PCI_PRODUCT_3COM_3C980SRV, EX_CONF_90XB, 136 "3c980 Server Adapter 10/100 Ethernet" }, 137 { PCI_PRODUCT_3COM_3C980CTXM, EX_CONF_90XB, 138 "3c980C-TXM 10/100 Ethernet" }, 139 140 { PCI_PRODUCT_3COM_3C905CTX, EX_CONF_90XB|EX_CONF_MII, 141 "3c905C-TX 10/100 Ethernet with mngmt" }, 142 143 { PCI_PRODUCT_3COM_3C450TX, EX_CONF_90XB, 144 "3c450-TX 10/100 Ethernet" }, 145 146 { PCI_PRODUCT_3COM_3CSOHO100TX, EX_CONF_90XB, 147 "3cSOHO100-TX 10/100 Ethernet" }, 148 149 { PCI_PRODUCT_3COM_3C555, 150 EX_CONF_90XB | EX_CONF_MII | EX_CONF_EEPROM_OFF | 151 EX_CONF_EEPROM_8BIT, 152 "3c555 MiniPCI 10/100 Ethernet" }, 153 154 { PCI_PRODUCT_3COM_3C556, 155 EX_CONF_90XB | EX_CONF_MII | EX_CONF_EEPROM_OFF | 156 EX_CONF_PCI_FUNCREG | EX_CONF_RESETHACK | EX_CONF_INV_LED_POLARITY | 157 EX_CONF_PHY_POWER | EX_CONF_EEPROM_8BIT, 158 "3c556 MiniPCI 10/100 Ethernet" }, 159 160 { PCI_PRODUCT_3COM_3C556B, 161 EX_CONF_90XB | EX_CONF_MII | EX_CONF_EEPROM_OFF | 162 EX_CONF_PCI_FUNCREG | EX_CONF_RESETHACK | EX_CONF_INV_LED_POLARITY | 163 EX_CONF_PHY_POWER, 164 "3c556B MiniPCI 10/100 Ethernet" }, 165 166 { 0, 0, 167 NULL }, 168 }; 169 170 const struct ex_pci_product *ex_pci_lookup 171 __P((const struct pci_attach_args *)); 172 173 const struct ex_pci_product * 174 ex_pci_lookup(pa) 175 const struct pci_attach_args *pa; 176 { 177 const struct ex_pci_product *epp; 178 179 if (PCI_VENDOR(pa->pa_id) != PCI_VENDOR_3COM) 180 return (NULL); 181 182 for (epp = ex_pci_products; epp->epp_name != NULL; epp++) 183 if (PCI_PRODUCT(pa->pa_id) == epp->epp_prodid) 184 return (epp); 185 return (NULL); 186 } 187 188 int 189 ex_pci_match(parent, match, aux) 190 struct device *parent; 191 struct cfdata *match; 192 void *aux; 193 { 194 struct pci_attach_args *pa = (struct pci_attach_args *) aux; 195 196 if (ex_pci_lookup(pa) != NULL) 197 return (2); /* beat ep_pci */ 198 199 return (0); 200 } 201 202 void 203 ex_pci_attach(parent, self, aux) 204 struct device *parent, *self; 205 void *aux; 206 { 207 struct ex_softc *sc = (void *)self; 208 struct ex_pci_softc *psc = (void *)self; 209 struct pci_attach_args *pa = aux; 210 pci_chipset_tag_t pc = pa->pa_pc; 211 pci_intr_handle_t ih; 212 const struct ex_pci_product *epp; 213 const char *intrstr = NULL; 214 int rev, pmreg; 215 pcireg_t reg; 216 217 if (pci_mapreg_map(pa, PCI_CBIO, PCI_MAPREG_TYPE_IO, 0, 218 &sc->sc_iot, &sc->sc_ioh, NULL, NULL)) { 219 printf(": can't map i/o space\n"); 220 return; 221 } 222 223 epp = ex_pci_lookup(pa); 224 if (epp == NULL) { 225 printf("\n"); 226 panic("ex_pci_attach: impossible"); 227 } 228 229 rev = PCI_REVISION(pci_conf_read(pc, pa->pa_tag, PCI_CLASS_REG)); 230 printf(": 3Com %s (rev. 0x%x)\n", epp->epp_name, rev); 231 232 sc->enable = NULL; 233 sc->disable = NULL; 234 sc->enabled = 1; 235 236 sc->sc_dmat = pa->pa_dmat; 237 238 sc->ex_bustype = EX_BUS_PCI; 239 sc->ex_conf = epp->epp_flags; 240 241 /* Enable the card. */ 242 pci_conf_write(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, 243 pci_conf_read(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG) | 244 PCI_COMMAND_MASTER_ENABLE); 245 246 if (sc->ex_conf & EX_CONF_PCI_FUNCREG) { 247 /* Map PCI function status window. */ 248 if (pci_mapreg_map(pa, PCI_FUNCMEM, PCI_MAPREG_TYPE_MEM, 0, 249 &psc->sc_funct, &psc->sc_funch, NULL, NULL)) { 250 printf("%s: unable to map function status window\n", 251 sc->sc_dev.dv_xname); 252 return; 253 } 254 sc->intr_ack = ex_pci_intr_ack; 255 } 256 257 /* Get it out of power save mode if needed (BIOS bugs) */ 258 if (pci_get_capability(pc, pa->pa_tag, PCI_CAP_PWRMGMT, &pmreg, 0)) { 259 reg = pci_conf_read(pc, pa->pa_tag, pmreg + 4) & 0x3; 260 if (reg == 3) { 261 /* 262 * The card has lost all configuration data in 263 * this state, so punt. 264 */ 265 printf("%s: unable to wake up from power state D3\n", 266 sc->sc_dev.dv_xname); 267 return; 268 } 269 if (reg != 0) { 270 printf("%s: waking up from power state D%d\n", 271 sc->sc_dev.dv_xname, reg); 272 pci_conf_write(pc, pa->pa_tag, pmreg + 4, 0); 273 } 274 } 275 276 /* Map and establish the interrupt. */ 277 if (pci_intr_map(pa, &ih)) { 278 printf("%s: couldn't map interrupt\n", sc->sc_dev.dv_xname); 279 return; 280 } 281 282 intrstr = pci_intr_string(pc, ih); 283 sc->sc_ih = pci_intr_establish(pc, ih, IPL_NET, ex_intr, sc); 284 if (sc->sc_ih == NULL) { 285 printf("%s: couldn't establish interrupt", 286 sc->sc_dev.dv_xname); 287 if (intrstr != NULL) 288 printf(" at %s", intrstr); 289 printf("\n"); 290 return; 291 } 292 printf("%s: interrupting at %s\n", sc->sc_dev.dv_xname, intrstr); 293 294 ex_config(sc); 295 296 if (sc->ex_conf & EX_CONF_PCI_FUNCREG) 297 bus_space_write_4(psc->sc_funct, psc->sc_funch, PCI_INTR, 298 PCI_INTRACK); 299 } 300 301 void 302 ex_pci_intr_ack(sc) 303 struct ex_softc *sc; 304 { 305 struct ex_pci_softc *psc = (struct ex_pci_softc *)sc; 306 307 bus_space_write_4(psc->sc_funct, psc->sc_funch, PCI_INTR, 308 PCI_INTRACK); 309 } 310
Indexes created Wed Sep 24 22:09:59 GMT 2025